Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1 | /******************************************************************************* |
| 2 | |
| 3 | Intel(R) Gigabit Ethernet Linux driver |
Akeem G. Abodunrin | 4b9ea46 | 2013-01-08 18:31:12 +0000 | [diff] [blame] | 4 | Copyright(c) 2007-2013 Intel Corporation. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5 | |
| 6 | This program is free software; you can redistribute it and/or modify it |
| 7 | under the terms and conditions of the GNU General Public License, |
| 8 | version 2, as published by the Free Software Foundation. |
| 9 | |
| 10 | This program is distributed in the hope it will be useful, but WITHOUT |
| 11 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 12 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 13 | more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License along with |
| 16 | this program; if not, write to the Free Software Foundation, Inc., |
| 17 | 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | |
| 19 | The full GNU General Public License is included in this distribution in |
| 20 | the file called "COPYING". |
| 21 | |
| 22 | Contact Information: |
| 23 | e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
| 24 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 25 | |
| 26 | *******************************************************************************/ |
| 27 | |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 28 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 29 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 30 | #include <linux/module.h> |
| 31 | #include <linux/types.h> |
| 32 | #include <linux/init.h> |
Jiri Pirko | b2cb09b | 2011-07-21 03:27:27 +0000 | [diff] [blame] | 33 | #include <linux/bitops.h> |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 34 | #include <linux/vmalloc.h> |
| 35 | #include <linux/pagemap.h> |
| 36 | #include <linux/netdevice.h> |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 37 | #include <linux/ipv6.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 38 | #include <linux/slab.h> |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 39 | #include <net/checksum.h> |
| 40 | #include <net/ip6_checksum.h> |
Patrick Ohly | c6cb090 | 2009-02-12 05:03:42 +0000 | [diff] [blame] | 41 | #include <linux/net_tstamp.h> |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 42 | #include <linux/mii.h> |
| 43 | #include <linux/ethtool.h> |
Jiri Pirko | 0178934 | 2011-08-16 06:29:00 +0000 | [diff] [blame] | 44 | #include <linux/if.h> |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 45 | #include <linux/if_vlan.h> |
| 46 | #include <linux/pci.h> |
Alexander Duyck | c54106b | 2008-10-16 21:26:57 -0700 | [diff] [blame] | 47 | #include <linux/pci-aspm.h> |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 48 | #include <linux/delay.h> |
| 49 | #include <linux/interrupt.h> |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 50 | #include <linux/ip.h> |
| 51 | #include <linux/tcp.h> |
| 52 | #include <linux/sctp.h> |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 53 | #include <linux/if_ether.h> |
Alexander Duyck | 40a914f | 2008-11-27 00:24:37 -0800 | [diff] [blame] | 54 | #include <linux/aer.h> |
Paul Gortmaker | 70c7160 | 2011-05-22 16:47:17 -0400 | [diff] [blame] | 55 | #include <linux/prefetch.h> |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 56 | #include <linux/pm_runtime.h> |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 57 | #ifdef CONFIG_IGB_DCA |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 58 | #include <linux/dca.h> |
| 59 | #endif |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 60 | #include <linux/i2c.h> |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 61 | #include "igb.h" |
| 62 | |
Carolyn Wyborny | 67b1b90 | 2013-04-17 16:44:53 +0000 | [diff] [blame] | 63 | #define MAJ 5 |
| 64 | #define MIN 0 |
Akeem G Abodunrin | 66f40b8 | 2013-08-22 14:23:10 +0000 | [diff] [blame] | 65 | #define BUILD 5 |
Carolyn Wyborny | 0d1fe82 | 2011-03-11 20:58:19 -0800 | [diff] [blame] | 66 | #define DRV_VERSION __stringify(MAJ) "." __stringify(MIN) "." \ |
Carolyn Wyborny | 929dd04 | 2011-05-26 03:02:26 +0000 | [diff] [blame] | 67 | __stringify(BUILD) "-k" |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 68 | char igb_driver_name[] = "igb"; |
| 69 | char igb_driver_version[] = DRV_VERSION; |
| 70 | static const char igb_driver_string[] = |
| 71 | "Intel(R) Gigabit Ethernet Network Driver"; |
Akeem G. Abodunrin | 4b9ea46 | 2013-01-08 18:31:12 +0000 | [diff] [blame] | 72 | static const char igb_copyright[] = |
| 73 | "Copyright (c) 2007-2013 Intel Corporation."; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 74 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 75 | static const struct e1000_info *igb_info_tbl[] = { |
| 76 | [board_82575] = &e1000_82575_info, |
| 77 | }; |
| 78 | |
Alexey Dobriyan | a3aa188 | 2010-01-07 11:58:11 +0000 | [diff] [blame] | 79 | static DEFINE_PCI_DEVICE_TABLE(igb_pci_tbl) = { |
Carolyn Wyborny | ceb5f13 | 2013-04-18 22:21:30 +0000 | [diff] [blame] | 80 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I354_BACKPLANE_1GBPS) }, |
| 81 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I354_SGMII) }, |
| 82 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I354_BACKPLANE_2_5GBPS) }, |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 83 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I211_COPPER), board_82575 }, |
| 84 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I210_COPPER), board_82575 }, |
| 85 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I210_FIBER), board_82575 }, |
| 86 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I210_SERDES), board_82575 }, |
| 87 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I210_SGMII), board_82575 }, |
Carolyn Wyborny | 53b87ce | 2013-07-16 19:18:36 +0000 | [diff] [blame] | 88 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I210_COPPER_FLASHLESS), board_82575 }, |
| 89 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I210_SERDES_FLASHLESS), board_82575 }, |
Alexander Duyck | d2ba2ed | 2010-03-22 14:08:06 +0000 | [diff] [blame] | 90 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I350_COPPER), board_82575 }, |
| 91 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I350_FIBER), board_82575 }, |
| 92 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I350_SERDES), board_82575 }, |
| 93 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_I350_SGMII), board_82575 }, |
Alexander Duyck | 55cac24 | 2009-11-19 12:42:21 +0000 | [diff] [blame] | 94 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_COPPER), board_82575 }, |
| 95 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_FIBER), board_82575 }, |
Carolyn Wyborny | 6493d24 | 2011-01-14 05:33:46 +0000 | [diff] [blame] | 96 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_QUAD_FIBER), board_82575 }, |
Alexander Duyck | 55cac24 | 2009-11-19 12:42:21 +0000 | [diff] [blame] | 97 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_SERDES), board_82575 }, |
| 98 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_SGMII), board_82575 }, |
| 99 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_COPPER_DUAL), board_82575 }, |
Joseph Gasparakis | 308fb39 | 2010-09-22 17:56:44 +0000 | [diff] [blame] | 100 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_DH89XXCC_SGMII), board_82575 }, |
| 101 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_DH89XXCC_SERDES), board_82575 }, |
Gasparakis, Joseph | 1b5dda3 | 2010-12-09 01:41:01 +0000 | [diff] [blame] | 102 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_DH89XXCC_BACKPLANE), board_82575 }, |
| 103 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_DH89XXCC_SFP), board_82575 }, |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 104 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576), board_82575 }, |
Alexander Duyck | 9eb2341 | 2009-03-13 20:42:15 +0000 | [diff] [blame] | 105 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_NS), board_82575 }, |
Alexander Duyck | 747d49b | 2009-10-05 06:33:27 +0000 | [diff] [blame] | 106 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_NS_SERDES), board_82575 }, |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 107 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_FIBER), board_82575 }, |
| 108 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_SERDES), board_82575 }, |
Alexander Duyck | 4703bf7 | 2009-07-23 18:09:48 +0000 | [diff] [blame] | 109 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_SERDES_QUAD), board_82575 }, |
Carolyn Wyborny | b894fa2 | 2010-03-19 06:07:48 +0000 | [diff] [blame] | 110 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_QUAD_COPPER_ET2), board_82575 }, |
Alexander Duyck | c8ea5ea | 2009-03-13 20:42:35 +0000 | [diff] [blame] | 111 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_QUAD_COPPER), board_82575 }, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 112 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82575EB_COPPER), board_82575 }, |
| 113 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82575EB_FIBER_SERDES), board_82575 }, |
| 114 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82575GB_QUAD_COPPER), board_82575 }, |
| 115 | /* required last entry */ |
| 116 | {0, } |
| 117 | }; |
| 118 | |
| 119 | MODULE_DEVICE_TABLE(pci, igb_pci_tbl); |
| 120 | |
| 121 | void igb_reset(struct igb_adapter *); |
| 122 | static int igb_setup_all_tx_resources(struct igb_adapter *); |
| 123 | static int igb_setup_all_rx_resources(struct igb_adapter *); |
| 124 | static void igb_free_all_tx_resources(struct igb_adapter *); |
| 125 | static void igb_free_all_rx_resources(struct igb_adapter *); |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 126 | static void igb_setup_mrqc(struct igb_adapter *); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 127 | static int igb_probe(struct pci_dev *, const struct pci_device_id *); |
Bill Pemberton | 9f9a12f | 2012-12-03 09:24:25 -0500 | [diff] [blame] | 128 | static void igb_remove(struct pci_dev *pdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 129 | static int igb_sw_init(struct igb_adapter *); |
| 130 | static int igb_open(struct net_device *); |
| 131 | static int igb_close(struct net_device *); |
Stefan Assmann | 53c7d06 | 2012-12-04 06:00:12 +0000 | [diff] [blame] | 132 | static void igb_configure(struct igb_adapter *); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 133 | static void igb_configure_tx(struct igb_adapter *); |
| 134 | static void igb_configure_rx(struct igb_adapter *); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 135 | static void igb_clean_all_tx_rings(struct igb_adapter *); |
| 136 | static void igb_clean_all_rx_rings(struct igb_adapter *); |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 137 | static void igb_clean_tx_ring(struct igb_ring *); |
| 138 | static void igb_clean_rx_ring(struct igb_ring *); |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 139 | static void igb_set_rx_mode(struct net_device *); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 140 | static void igb_update_phy_info(unsigned long); |
| 141 | static void igb_watchdog(unsigned long); |
| 142 | static void igb_watchdog_task(struct work_struct *); |
Alexander Duyck | cd392f5 | 2011-08-26 07:43:59 +0000 | [diff] [blame] | 143 | static netdev_tx_t igb_xmit_frame(struct sk_buff *skb, struct net_device *); |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 144 | static struct rtnl_link_stats64 *igb_get_stats64(struct net_device *dev, |
| 145 | struct rtnl_link_stats64 *stats); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 146 | static int igb_change_mtu(struct net_device *, int); |
| 147 | static int igb_set_mac(struct net_device *, void *); |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 148 | static void igb_set_uta(struct igb_adapter *adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 149 | static irqreturn_t igb_intr(int irq, void *); |
| 150 | static irqreturn_t igb_intr_msi(int irq, void *); |
| 151 | static irqreturn_t igb_msix_other(int irq, void *); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 152 | static irqreturn_t igb_msix_ring(int irq, void *); |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 153 | #ifdef CONFIG_IGB_DCA |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 154 | static void igb_update_dca(struct igb_q_vector *); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 155 | static void igb_setup_dca(struct igb_adapter *); |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 156 | #endif /* CONFIG_IGB_DCA */ |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 157 | static int igb_poll(struct napi_struct *, int); |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 158 | static bool igb_clean_tx_irq(struct igb_q_vector *); |
Alexander Duyck | cd392f5 | 2011-08-26 07:43:59 +0000 | [diff] [blame] | 159 | static bool igb_clean_rx_irq(struct igb_q_vector *, int); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 160 | static int igb_ioctl(struct net_device *, struct ifreq *, int cmd); |
| 161 | static void igb_tx_timeout(struct net_device *); |
| 162 | static void igb_reset_task(struct work_struct *); |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 163 | static void igb_vlan_mode(struct net_device *netdev, netdev_features_t features); |
Patrick McHardy | 80d5c36 | 2013-04-19 02:04:28 +0000 | [diff] [blame] | 164 | static int igb_vlan_rx_add_vid(struct net_device *, __be16, u16); |
| 165 | static int igb_vlan_rx_kill_vid(struct net_device *, __be16, u16); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 166 | static void igb_restore_vlan(struct igb_adapter *); |
Alexander Duyck | 26ad917 | 2009-10-05 06:32:49 +0000 | [diff] [blame] | 167 | static void igb_rar_set_qsel(struct igb_adapter *, u8 *, u32 , u8); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 168 | static void igb_ping_all_vfs(struct igb_adapter *); |
| 169 | static void igb_msg_task(struct igb_adapter *); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 170 | static void igb_vmm_control(struct igb_adapter *); |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 171 | static int igb_set_vf_mac(struct igb_adapter *, int, unsigned char *); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 172 | static void igb_restore_vf_multicasts(struct igb_adapter *adapter); |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 173 | static int igb_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac); |
| 174 | static int igb_ndo_set_vf_vlan(struct net_device *netdev, |
| 175 | int vf, u16 vlan, u8 qos); |
| 176 | static int igb_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate); |
Lior Levy | 70ea478 | 2013-03-03 20:27:48 +0000 | [diff] [blame] | 177 | static int igb_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, |
| 178 | bool setting); |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 179 | static int igb_ndo_get_vf_config(struct net_device *netdev, int vf, |
| 180 | struct ifla_vf_info *ivi); |
Lior Levy | 17dc566 | 2011-02-08 02:28:46 +0000 | [diff] [blame] | 181 | static void igb_check_vf_rate_limit(struct igb_adapter *); |
RongQing Li | 46a0169 | 2011-10-18 22:52:35 +0000 | [diff] [blame] | 182 | |
| 183 | #ifdef CONFIG_PCI_IOV |
Greg Rose | 0224d66 | 2011-10-14 02:57:14 +0000 | [diff] [blame] | 184 | static int igb_vf_configure(struct igb_adapter *adapter, int vf); |
RongQing Li | 46a0169 | 2011-10-18 22:52:35 +0000 | [diff] [blame] | 185 | #endif |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 186 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 187 | #ifdef CONFIG_PM |
Emil Tantilov | d9dd966 | 2012-01-28 08:10:35 +0000 | [diff] [blame] | 188 | #ifdef CONFIG_PM_SLEEP |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 189 | static int igb_suspend(struct device *); |
Emil Tantilov | d9dd966 | 2012-01-28 08:10:35 +0000 | [diff] [blame] | 190 | #endif |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 191 | static int igb_resume(struct device *); |
| 192 | #ifdef CONFIG_PM_RUNTIME |
| 193 | static int igb_runtime_suspend(struct device *dev); |
| 194 | static int igb_runtime_resume(struct device *dev); |
| 195 | static int igb_runtime_idle(struct device *dev); |
| 196 | #endif |
| 197 | static const struct dev_pm_ops igb_pm_ops = { |
| 198 | SET_SYSTEM_SLEEP_PM_OPS(igb_suspend, igb_resume) |
| 199 | SET_RUNTIME_PM_OPS(igb_runtime_suspend, igb_runtime_resume, |
| 200 | igb_runtime_idle) |
| 201 | }; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 202 | #endif |
| 203 | static void igb_shutdown(struct pci_dev *); |
Greg Rose | fa44f2f | 2013-01-17 01:03:06 -0800 | [diff] [blame] | 204 | static int igb_pci_sriov_configure(struct pci_dev *dev, int num_vfs); |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 205 | #ifdef CONFIG_IGB_DCA |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 206 | static int igb_notify_dca(struct notifier_block *, unsigned long, void *); |
| 207 | static struct notifier_block dca_notifier = { |
| 208 | .notifier_call = igb_notify_dca, |
| 209 | .next = NULL, |
| 210 | .priority = 0 |
| 211 | }; |
| 212 | #endif |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 213 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 214 | /* for netdump / net console */ |
| 215 | static void igb_netpoll(struct net_device *); |
| 216 | #endif |
Alexander Duyck | 3768011 | 2009-02-19 20:40:30 -0800 | [diff] [blame] | 217 | #ifdef CONFIG_PCI_IOV |
Alexander Duyck | 2a3abf6 | 2009-04-07 14:37:52 +0000 | [diff] [blame] | 218 | static unsigned int max_vfs = 0; |
| 219 | module_param(max_vfs, uint, 0); |
| 220 | MODULE_PARM_DESC(max_vfs, "Maximum number of virtual functions to allocate " |
| 221 | "per physical function"); |
| 222 | #endif /* CONFIG_PCI_IOV */ |
| 223 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 224 | static pci_ers_result_t igb_io_error_detected(struct pci_dev *, |
| 225 | pci_channel_state_t); |
| 226 | static pci_ers_result_t igb_io_slot_reset(struct pci_dev *); |
| 227 | static void igb_io_resume(struct pci_dev *); |
| 228 | |
Stephen Hemminger | 3646f0e | 2012-09-07 09:33:15 -0700 | [diff] [blame] | 229 | static const struct pci_error_handlers igb_err_handler = { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 230 | .error_detected = igb_io_error_detected, |
| 231 | .slot_reset = igb_io_slot_reset, |
| 232 | .resume = igb_io_resume, |
| 233 | }; |
| 234 | |
Carolyn Wyborny | b6e0c41 | 2011-10-13 17:29:59 +0000 | [diff] [blame] | 235 | static void igb_init_dmac(struct igb_adapter *adapter, u32 pba); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 236 | |
| 237 | static struct pci_driver igb_driver = { |
| 238 | .name = igb_driver_name, |
| 239 | .id_table = igb_pci_tbl, |
| 240 | .probe = igb_probe, |
Bill Pemberton | 9f9a12f | 2012-12-03 09:24:25 -0500 | [diff] [blame] | 241 | .remove = igb_remove, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 242 | #ifdef CONFIG_PM |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 243 | .driver.pm = &igb_pm_ops, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 244 | #endif |
| 245 | .shutdown = igb_shutdown, |
Greg Rose | fa44f2f | 2013-01-17 01:03:06 -0800 | [diff] [blame] | 246 | .sriov_configure = igb_pci_sriov_configure, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 247 | .err_handler = &igb_err_handler |
| 248 | }; |
| 249 | |
| 250 | MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>"); |
| 251 | MODULE_DESCRIPTION("Intel(R) Gigabit Ethernet Network Driver"); |
| 252 | MODULE_LICENSE("GPL"); |
| 253 | MODULE_VERSION(DRV_VERSION); |
| 254 | |
stephen hemminger | b3f4d59 | 2012-03-13 06:04:20 +0000 | [diff] [blame] | 255 | #define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK) |
| 256 | static int debug = -1; |
| 257 | module_param(debug, int, 0); |
| 258 | MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); |
| 259 | |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 260 | struct igb_reg_info { |
| 261 | u32 ofs; |
| 262 | char *name; |
| 263 | }; |
| 264 | |
| 265 | static const struct igb_reg_info igb_reg_info_tbl[] = { |
| 266 | |
| 267 | /* General Registers */ |
| 268 | {E1000_CTRL, "CTRL"}, |
| 269 | {E1000_STATUS, "STATUS"}, |
| 270 | {E1000_CTRL_EXT, "CTRL_EXT"}, |
| 271 | |
| 272 | /* Interrupt Registers */ |
| 273 | {E1000_ICR, "ICR"}, |
| 274 | |
| 275 | /* RX Registers */ |
| 276 | {E1000_RCTL, "RCTL"}, |
| 277 | {E1000_RDLEN(0), "RDLEN"}, |
| 278 | {E1000_RDH(0), "RDH"}, |
| 279 | {E1000_RDT(0), "RDT"}, |
| 280 | {E1000_RXDCTL(0), "RXDCTL"}, |
| 281 | {E1000_RDBAL(0), "RDBAL"}, |
| 282 | {E1000_RDBAH(0), "RDBAH"}, |
| 283 | |
| 284 | /* TX Registers */ |
| 285 | {E1000_TCTL, "TCTL"}, |
| 286 | {E1000_TDBAL(0), "TDBAL"}, |
| 287 | {E1000_TDBAH(0), "TDBAH"}, |
| 288 | {E1000_TDLEN(0), "TDLEN"}, |
| 289 | {E1000_TDH(0), "TDH"}, |
| 290 | {E1000_TDT(0), "TDT"}, |
| 291 | {E1000_TXDCTL(0), "TXDCTL"}, |
| 292 | {E1000_TDFH, "TDFH"}, |
| 293 | {E1000_TDFT, "TDFT"}, |
| 294 | {E1000_TDFHS, "TDFHS"}, |
| 295 | {E1000_TDFPC, "TDFPC"}, |
| 296 | |
| 297 | /* List Terminator */ |
| 298 | {} |
| 299 | }; |
| 300 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 301 | /* igb_regdump - register printout routine */ |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 302 | static void igb_regdump(struct e1000_hw *hw, struct igb_reg_info *reginfo) |
| 303 | { |
| 304 | int n = 0; |
| 305 | char rname[16]; |
| 306 | u32 regs[8]; |
| 307 | |
| 308 | switch (reginfo->ofs) { |
| 309 | case E1000_RDLEN(0): |
| 310 | for (n = 0; n < 4; n++) |
| 311 | regs[n] = rd32(E1000_RDLEN(n)); |
| 312 | break; |
| 313 | case E1000_RDH(0): |
| 314 | for (n = 0; n < 4; n++) |
| 315 | regs[n] = rd32(E1000_RDH(n)); |
| 316 | break; |
| 317 | case E1000_RDT(0): |
| 318 | for (n = 0; n < 4; n++) |
| 319 | regs[n] = rd32(E1000_RDT(n)); |
| 320 | break; |
| 321 | case E1000_RXDCTL(0): |
| 322 | for (n = 0; n < 4; n++) |
| 323 | regs[n] = rd32(E1000_RXDCTL(n)); |
| 324 | break; |
| 325 | case E1000_RDBAL(0): |
| 326 | for (n = 0; n < 4; n++) |
| 327 | regs[n] = rd32(E1000_RDBAL(n)); |
| 328 | break; |
| 329 | case E1000_RDBAH(0): |
| 330 | for (n = 0; n < 4; n++) |
| 331 | regs[n] = rd32(E1000_RDBAH(n)); |
| 332 | break; |
| 333 | case E1000_TDBAL(0): |
| 334 | for (n = 0; n < 4; n++) |
| 335 | regs[n] = rd32(E1000_RDBAL(n)); |
| 336 | break; |
| 337 | case E1000_TDBAH(0): |
| 338 | for (n = 0; n < 4; n++) |
| 339 | regs[n] = rd32(E1000_TDBAH(n)); |
| 340 | break; |
| 341 | case E1000_TDLEN(0): |
| 342 | for (n = 0; n < 4; n++) |
| 343 | regs[n] = rd32(E1000_TDLEN(n)); |
| 344 | break; |
| 345 | case E1000_TDH(0): |
| 346 | for (n = 0; n < 4; n++) |
| 347 | regs[n] = rd32(E1000_TDH(n)); |
| 348 | break; |
| 349 | case E1000_TDT(0): |
| 350 | for (n = 0; n < 4; n++) |
| 351 | regs[n] = rd32(E1000_TDT(n)); |
| 352 | break; |
| 353 | case E1000_TXDCTL(0): |
| 354 | for (n = 0; n < 4; n++) |
| 355 | regs[n] = rd32(E1000_TXDCTL(n)); |
| 356 | break; |
| 357 | default: |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 358 | pr_info("%-15s %08x\n", reginfo->name, rd32(reginfo->ofs)); |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 359 | return; |
| 360 | } |
| 361 | |
| 362 | snprintf(rname, 16, "%s%s", reginfo->name, "[0-3]"); |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 363 | pr_info("%-15s %08x %08x %08x %08x\n", rname, regs[0], regs[1], |
| 364 | regs[2], regs[3]); |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 365 | } |
| 366 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 367 | /* igb_dump - Print registers, Tx-rings and Rx-rings */ |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 368 | static void igb_dump(struct igb_adapter *adapter) |
| 369 | { |
| 370 | struct net_device *netdev = adapter->netdev; |
| 371 | struct e1000_hw *hw = &adapter->hw; |
| 372 | struct igb_reg_info *reginfo; |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 373 | struct igb_ring *tx_ring; |
| 374 | union e1000_adv_tx_desc *tx_desc; |
| 375 | struct my_u0 { u64 a; u64 b; } *u0; |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 376 | struct igb_ring *rx_ring; |
| 377 | union e1000_adv_rx_desc *rx_desc; |
| 378 | u32 staterr; |
Alexander Duyck | 6ad4edf | 2011-08-26 07:45:26 +0000 | [diff] [blame] | 379 | u16 i, n; |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 380 | |
| 381 | if (!netif_msg_hw(adapter)) |
| 382 | return; |
| 383 | |
| 384 | /* Print netdevice Info */ |
| 385 | if (netdev) { |
| 386 | dev_info(&adapter->pdev->dev, "Net device Info\n"); |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 387 | pr_info("Device Name state trans_start " |
| 388 | "last_rx\n"); |
| 389 | pr_info("%-15s %016lX %016lX %016lX\n", netdev->name, |
| 390 | netdev->state, netdev->trans_start, netdev->last_rx); |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 391 | } |
| 392 | |
| 393 | /* Print Registers */ |
| 394 | dev_info(&adapter->pdev->dev, "Register Dump\n"); |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 395 | pr_info(" Register Name Value\n"); |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 396 | for (reginfo = (struct igb_reg_info *)igb_reg_info_tbl; |
| 397 | reginfo->name; reginfo++) { |
| 398 | igb_regdump(hw, reginfo); |
| 399 | } |
| 400 | |
| 401 | /* Print TX Ring Summary */ |
| 402 | if (!netdev || !netif_running(netdev)) |
| 403 | goto exit; |
| 404 | |
| 405 | dev_info(&adapter->pdev->dev, "TX Rings Summary\n"); |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 406 | pr_info("Queue [NTU] [NTC] [bi(ntc)->dma ] leng ntw timestamp\n"); |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 407 | for (n = 0; n < adapter->num_tx_queues; n++) { |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 408 | struct igb_tx_buffer *buffer_info; |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 409 | tx_ring = adapter->tx_ring[n]; |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 410 | buffer_info = &tx_ring->tx_buffer_info[tx_ring->next_to_clean]; |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 411 | pr_info(" %5d %5X %5X %016llX %04X %p %016llX\n", |
| 412 | n, tx_ring->next_to_use, tx_ring->next_to_clean, |
Alexander Duyck | c9f14bf3 | 2012-09-18 01:56:27 +0000 | [diff] [blame] | 413 | (u64)dma_unmap_addr(buffer_info, dma), |
| 414 | dma_unmap_len(buffer_info, len), |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 415 | buffer_info->next_to_watch, |
| 416 | (u64)buffer_info->time_stamp); |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 417 | } |
| 418 | |
| 419 | /* Print TX Rings */ |
| 420 | if (!netif_msg_tx_done(adapter)) |
| 421 | goto rx_ring_summary; |
| 422 | |
| 423 | dev_info(&adapter->pdev->dev, "TX Rings Dump\n"); |
| 424 | |
| 425 | /* Transmit Descriptor Formats |
| 426 | * |
| 427 | * Advanced Transmit Descriptor |
| 428 | * +--------------------------------------------------------------+ |
| 429 | * 0 | Buffer Address [63:0] | |
| 430 | * +--------------------------------------------------------------+ |
| 431 | * 8 | PAYLEN | PORTS |CC|IDX | STA | DCMD |DTYP|MAC|RSV| DTALEN | |
| 432 | * +--------------------------------------------------------------+ |
| 433 | * 63 46 45 40 39 38 36 35 32 31 24 15 0 |
| 434 | */ |
| 435 | |
| 436 | for (n = 0; n < adapter->num_tx_queues; n++) { |
| 437 | tx_ring = adapter->tx_ring[n]; |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 438 | pr_info("------------------------------------\n"); |
| 439 | pr_info("TX QUEUE INDEX = %d\n", tx_ring->queue_index); |
| 440 | pr_info("------------------------------------\n"); |
| 441 | pr_info("T [desc] [address 63:0 ] [PlPOCIStDDM Ln] " |
| 442 | "[bi->dma ] leng ntw timestamp " |
| 443 | "bi->skb\n"); |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 444 | |
| 445 | for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) { |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 446 | const char *next_desc; |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 447 | struct igb_tx_buffer *buffer_info; |
Alexander Duyck | 6013690 | 2011-08-26 07:44:05 +0000 | [diff] [blame] | 448 | tx_desc = IGB_TX_DESC(tx_ring, i); |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 449 | buffer_info = &tx_ring->tx_buffer_info[i]; |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 450 | u0 = (struct my_u0 *)tx_desc; |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 451 | if (i == tx_ring->next_to_use && |
| 452 | i == tx_ring->next_to_clean) |
| 453 | next_desc = " NTC/U"; |
| 454 | else if (i == tx_ring->next_to_use) |
| 455 | next_desc = " NTU"; |
| 456 | else if (i == tx_ring->next_to_clean) |
| 457 | next_desc = " NTC"; |
| 458 | else |
| 459 | next_desc = ""; |
| 460 | |
| 461 | pr_info("T [0x%03X] %016llX %016llX %016llX" |
| 462 | " %04X %p %016llX %p%s\n", i, |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 463 | le64_to_cpu(u0->a), |
| 464 | le64_to_cpu(u0->b), |
Alexander Duyck | c9f14bf3 | 2012-09-18 01:56:27 +0000 | [diff] [blame] | 465 | (u64)dma_unmap_addr(buffer_info, dma), |
| 466 | dma_unmap_len(buffer_info, len), |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 467 | buffer_info->next_to_watch, |
| 468 | (u64)buffer_info->time_stamp, |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 469 | buffer_info->skb, next_desc); |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 470 | |
Emil Tantilov | b669588 | 2012-07-28 05:07:48 +0000 | [diff] [blame] | 471 | if (netif_msg_pktdata(adapter) && buffer_info->skb) |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 472 | print_hex_dump(KERN_INFO, "", |
| 473 | DUMP_PREFIX_ADDRESS, |
Emil Tantilov | b669588 | 2012-07-28 05:07:48 +0000 | [diff] [blame] | 474 | 16, 1, buffer_info->skb->data, |
Alexander Duyck | c9f14bf3 | 2012-09-18 01:56:27 +0000 | [diff] [blame] | 475 | dma_unmap_len(buffer_info, len), |
| 476 | true); |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 477 | } |
| 478 | } |
| 479 | |
| 480 | /* Print RX Rings Summary */ |
| 481 | rx_ring_summary: |
| 482 | dev_info(&adapter->pdev->dev, "RX Rings Summary\n"); |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 483 | pr_info("Queue [NTU] [NTC]\n"); |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 484 | for (n = 0; n < adapter->num_rx_queues; n++) { |
| 485 | rx_ring = adapter->rx_ring[n]; |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 486 | pr_info(" %5d %5X %5X\n", |
| 487 | n, rx_ring->next_to_use, rx_ring->next_to_clean); |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 488 | } |
| 489 | |
| 490 | /* Print RX Rings */ |
| 491 | if (!netif_msg_rx_status(adapter)) |
| 492 | goto exit; |
| 493 | |
| 494 | dev_info(&adapter->pdev->dev, "RX Rings Dump\n"); |
| 495 | |
| 496 | /* Advanced Receive Descriptor (Read) Format |
| 497 | * 63 1 0 |
| 498 | * +-----------------------------------------------------+ |
| 499 | * 0 | Packet Buffer Address [63:1] |A0/NSE| |
| 500 | * +----------------------------------------------+------+ |
| 501 | * 8 | Header Buffer Address [63:1] | DD | |
| 502 | * +-----------------------------------------------------+ |
| 503 | * |
| 504 | * |
| 505 | * Advanced Receive Descriptor (Write-Back) Format |
| 506 | * |
| 507 | * 63 48 47 32 31 30 21 20 17 16 4 3 0 |
| 508 | * +------------------------------------------------------+ |
| 509 | * 0 | Packet IP |SPH| HDR_LEN | RSV|Packet| RSS | |
| 510 | * | Checksum Ident | | | | Type | Type | |
| 511 | * +------------------------------------------------------+ |
| 512 | * 8 | VLAN Tag | Length | Extended Error | Extended Status | |
| 513 | * +------------------------------------------------------+ |
| 514 | * 63 48 47 32 31 20 19 0 |
| 515 | */ |
| 516 | |
| 517 | for (n = 0; n < adapter->num_rx_queues; n++) { |
| 518 | rx_ring = adapter->rx_ring[n]; |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 519 | pr_info("------------------------------------\n"); |
| 520 | pr_info("RX QUEUE INDEX = %d\n", rx_ring->queue_index); |
| 521 | pr_info("------------------------------------\n"); |
| 522 | pr_info("R [desc] [ PktBuf A0] [ HeadBuf DD] " |
| 523 | "[bi->dma ] [bi->skb] <-- Adv Rx Read format\n"); |
| 524 | pr_info("RWB[desc] [PcsmIpSHl PtRs] [vl er S cks ln] -----" |
| 525 | "----------- [bi->skb] <-- Adv Rx Write-Back format\n"); |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 526 | |
| 527 | for (i = 0; i < rx_ring->count; i++) { |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 528 | const char *next_desc; |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 529 | struct igb_rx_buffer *buffer_info; |
| 530 | buffer_info = &rx_ring->rx_buffer_info[i]; |
Alexander Duyck | 6013690 | 2011-08-26 07:44:05 +0000 | [diff] [blame] | 531 | rx_desc = IGB_RX_DESC(rx_ring, i); |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 532 | u0 = (struct my_u0 *)rx_desc; |
| 533 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 534 | |
| 535 | if (i == rx_ring->next_to_use) |
| 536 | next_desc = " NTU"; |
| 537 | else if (i == rx_ring->next_to_clean) |
| 538 | next_desc = " NTC"; |
| 539 | else |
| 540 | next_desc = ""; |
| 541 | |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 542 | if (staterr & E1000_RXD_STAT_DD) { |
| 543 | /* Descriptor Done */ |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 544 | pr_info("%s[0x%03X] %016llX %016llX ---------------- %s\n", |
| 545 | "RWB", i, |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 546 | le64_to_cpu(u0->a), |
| 547 | le64_to_cpu(u0->b), |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 548 | next_desc); |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 549 | } else { |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 550 | pr_info("%s[0x%03X] %016llX %016llX %016llX %s\n", |
| 551 | "R ", i, |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 552 | le64_to_cpu(u0->a), |
| 553 | le64_to_cpu(u0->b), |
| 554 | (u64)buffer_info->dma, |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 555 | next_desc); |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 556 | |
Emil Tantilov | b669588 | 2012-07-28 05:07:48 +0000 | [diff] [blame] | 557 | if (netif_msg_pktdata(adapter) && |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 558 | buffer_info->dma && buffer_info->page) { |
Alexander Duyck | 44390ca | 2011-08-26 07:43:38 +0000 | [diff] [blame] | 559 | print_hex_dump(KERN_INFO, "", |
| 560 | DUMP_PREFIX_ADDRESS, |
| 561 | 16, 1, |
Emil Tantilov | b669588 | 2012-07-28 05:07:48 +0000 | [diff] [blame] | 562 | page_address(buffer_info->page) + |
| 563 | buffer_info->page_offset, |
Alexander Duyck | de78d1f | 2012-09-25 00:31:12 +0000 | [diff] [blame] | 564 | IGB_RX_BUFSZ, true); |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 565 | } |
| 566 | } |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 567 | } |
| 568 | } |
| 569 | |
| 570 | exit: |
| 571 | return; |
| 572 | } |
| 573 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 574 | /** |
| 575 | * igb_get_i2c_data - Reads the I2C SDA data bit |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 576 | * @hw: pointer to hardware structure |
| 577 | * @i2cctl: Current value of I2CCTL register |
| 578 | * |
| 579 | * Returns the I2C data bit value |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 580 | **/ |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 581 | static int igb_get_i2c_data(void *data) |
| 582 | { |
| 583 | struct igb_adapter *adapter = (struct igb_adapter *)data; |
| 584 | struct e1000_hw *hw = &adapter->hw; |
| 585 | s32 i2cctl = rd32(E1000_I2CPARAMS); |
| 586 | |
| 587 | return ((i2cctl & E1000_I2C_DATA_IN) != 0); |
| 588 | } |
| 589 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 590 | /** |
| 591 | * igb_set_i2c_data - Sets the I2C data bit |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 592 | * @data: pointer to hardware structure |
| 593 | * @state: I2C data value (0 or 1) to set |
| 594 | * |
| 595 | * Sets the I2C data bit |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 596 | **/ |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 597 | static void igb_set_i2c_data(void *data, int state) |
| 598 | { |
| 599 | struct igb_adapter *adapter = (struct igb_adapter *)data; |
| 600 | struct e1000_hw *hw = &adapter->hw; |
| 601 | s32 i2cctl = rd32(E1000_I2CPARAMS); |
| 602 | |
| 603 | if (state) |
| 604 | i2cctl |= E1000_I2C_DATA_OUT; |
| 605 | else |
| 606 | i2cctl &= ~E1000_I2C_DATA_OUT; |
| 607 | |
| 608 | i2cctl &= ~E1000_I2C_DATA_OE_N; |
| 609 | i2cctl |= E1000_I2C_CLK_OE_N; |
| 610 | wr32(E1000_I2CPARAMS, i2cctl); |
| 611 | wrfl(); |
| 612 | |
| 613 | } |
| 614 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 615 | /** |
| 616 | * igb_set_i2c_clk - Sets the I2C SCL clock |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 617 | * @data: pointer to hardware structure |
| 618 | * @state: state to set clock |
| 619 | * |
| 620 | * Sets the I2C clock line to state |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 621 | **/ |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 622 | static void igb_set_i2c_clk(void *data, int state) |
| 623 | { |
| 624 | struct igb_adapter *adapter = (struct igb_adapter *)data; |
| 625 | struct e1000_hw *hw = &adapter->hw; |
| 626 | s32 i2cctl = rd32(E1000_I2CPARAMS); |
| 627 | |
| 628 | if (state) { |
| 629 | i2cctl |= E1000_I2C_CLK_OUT; |
| 630 | i2cctl &= ~E1000_I2C_CLK_OE_N; |
| 631 | } else { |
| 632 | i2cctl &= ~E1000_I2C_CLK_OUT; |
| 633 | i2cctl &= ~E1000_I2C_CLK_OE_N; |
| 634 | } |
| 635 | wr32(E1000_I2CPARAMS, i2cctl); |
| 636 | wrfl(); |
| 637 | } |
| 638 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 639 | /** |
| 640 | * igb_get_i2c_clk - Gets the I2C SCL clock state |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 641 | * @data: pointer to hardware structure |
| 642 | * |
| 643 | * Gets the I2C clock state |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 644 | **/ |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 645 | static int igb_get_i2c_clk(void *data) |
| 646 | { |
| 647 | struct igb_adapter *adapter = (struct igb_adapter *)data; |
| 648 | struct e1000_hw *hw = &adapter->hw; |
| 649 | s32 i2cctl = rd32(E1000_I2CPARAMS); |
| 650 | |
| 651 | return ((i2cctl & E1000_I2C_CLK_IN) != 0); |
| 652 | } |
| 653 | |
| 654 | static const struct i2c_algo_bit_data igb_i2c_algo = { |
| 655 | .setsda = igb_set_i2c_data, |
| 656 | .setscl = igb_set_i2c_clk, |
| 657 | .getsda = igb_get_i2c_data, |
| 658 | .getscl = igb_get_i2c_clk, |
| 659 | .udelay = 5, |
| 660 | .timeout = 20, |
| 661 | }; |
| 662 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 663 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 664 | * igb_get_hw_dev - return device |
| 665 | * @hw: pointer to hardware structure |
| 666 | * |
| 667 | * used by hardware layer to print debugging information |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 668 | **/ |
Alexander Duyck | c041076 | 2010-03-25 13:10:08 +0000 | [diff] [blame] | 669 | struct net_device *igb_get_hw_dev(struct e1000_hw *hw) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 670 | { |
| 671 | struct igb_adapter *adapter = hw->back; |
Alexander Duyck | c041076 | 2010-03-25 13:10:08 +0000 | [diff] [blame] | 672 | return adapter->netdev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 673 | } |
Patrick Ohly | 38c845c | 2009-02-12 05:03:41 +0000 | [diff] [blame] | 674 | |
| 675 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 676 | * igb_init_module - Driver Registration Routine |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 677 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 678 | * igb_init_module is the first routine called when the driver is |
| 679 | * loaded. All it does is register with the PCI subsystem. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 680 | **/ |
| 681 | static int __init igb_init_module(void) |
| 682 | { |
| 683 | int ret; |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 684 | pr_info("%s - version %s\n", |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 685 | igb_driver_string, igb_driver_version); |
| 686 | |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 687 | pr_info("%s\n", igb_copyright); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 688 | |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 689 | #ifdef CONFIG_IGB_DCA |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 690 | dca_register_notify(&dca_notifier); |
| 691 | #endif |
Alexander Duyck | bbd98fe | 2009-01-31 00:52:30 -0800 | [diff] [blame] | 692 | ret = pci_register_driver(&igb_driver); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 693 | return ret; |
| 694 | } |
| 695 | |
| 696 | module_init(igb_init_module); |
| 697 | |
| 698 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 699 | * igb_exit_module - Driver Exit Cleanup Routine |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 700 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 701 | * igb_exit_module is called just before the driver is removed |
| 702 | * from memory. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 703 | **/ |
| 704 | static void __exit igb_exit_module(void) |
| 705 | { |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 706 | #ifdef CONFIG_IGB_DCA |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 707 | dca_unregister_notify(&dca_notifier); |
| 708 | #endif |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 709 | pci_unregister_driver(&igb_driver); |
| 710 | } |
| 711 | |
| 712 | module_exit(igb_exit_module); |
| 713 | |
Alexander Duyck | 26bc19e | 2008-12-26 01:34:11 -0800 | [diff] [blame] | 714 | #define Q_IDX_82576(i) (((i & 0x1) << 3) + (i >> 1)) |
| 715 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 716 | * igb_cache_ring_register - Descriptor ring to register mapping |
| 717 | * @adapter: board private structure to initialize |
Alexander Duyck | 26bc19e | 2008-12-26 01:34:11 -0800 | [diff] [blame] | 718 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 719 | * Once we know the feature-set enabled for the device, we'll cache |
| 720 | * the register offset the descriptor ring is assigned to. |
Alexander Duyck | 26bc19e | 2008-12-26 01:34:11 -0800 | [diff] [blame] | 721 | **/ |
| 722 | static void igb_cache_ring_register(struct igb_adapter *adapter) |
| 723 | { |
Alexander Duyck | ee1b9f0 | 2009-10-27 23:49:40 +0000 | [diff] [blame] | 724 | int i = 0, j = 0; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 725 | u32 rbase_offset = adapter->vfs_allocated_count; |
Alexander Duyck | 26bc19e | 2008-12-26 01:34:11 -0800 | [diff] [blame] | 726 | |
| 727 | switch (adapter->hw.mac.type) { |
| 728 | case e1000_82576: |
| 729 | /* The queues are allocated for virtualization such that VF 0 |
| 730 | * is allocated queues 0 and 8, VF 1 queues 1 and 9, etc. |
| 731 | * In order to avoid collision we start at the first free queue |
| 732 | * and continue consuming queues in the same sequence |
| 733 | */ |
Alexander Duyck | ee1b9f0 | 2009-10-27 23:49:40 +0000 | [diff] [blame] | 734 | if (adapter->vfs_allocated_count) { |
Alexander Duyck | a99955f | 2009-11-12 18:37:19 +0000 | [diff] [blame] | 735 | for (; i < adapter->rss_queues; i++) |
Alexander Duyck | 3025a44 | 2010-02-17 01:02:39 +0000 | [diff] [blame] | 736 | adapter->rx_ring[i]->reg_idx = rbase_offset + |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 737 | Q_IDX_82576(i); |
Alexander Duyck | ee1b9f0 | 2009-10-27 23:49:40 +0000 | [diff] [blame] | 738 | } |
Alexander Duyck | 26bc19e | 2008-12-26 01:34:11 -0800 | [diff] [blame] | 739 | case e1000_82575: |
Alexander Duyck | 55cac24 | 2009-11-19 12:42:21 +0000 | [diff] [blame] | 740 | case e1000_82580: |
Alexander Duyck | d2ba2ed | 2010-03-22 14:08:06 +0000 | [diff] [blame] | 741 | case e1000_i350: |
Carolyn Wyborny | ceb5f13 | 2013-04-18 22:21:30 +0000 | [diff] [blame] | 742 | case e1000_i354: |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 743 | case e1000_i210: |
| 744 | case e1000_i211: |
Alexander Duyck | 26bc19e | 2008-12-26 01:34:11 -0800 | [diff] [blame] | 745 | default: |
Alexander Duyck | ee1b9f0 | 2009-10-27 23:49:40 +0000 | [diff] [blame] | 746 | for (; i < adapter->num_rx_queues; i++) |
Alexander Duyck | 3025a44 | 2010-02-17 01:02:39 +0000 | [diff] [blame] | 747 | adapter->rx_ring[i]->reg_idx = rbase_offset + i; |
Alexander Duyck | ee1b9f0 | 2009-10-27 23:49:40 +0000 | [diff] [blame] | 748 | for (; j < adapter->num_tx_queues; j++) |
Alexander Duyck | 3025a44 | 2010-02-17 01:02:39 +0000 | [diff] [blame] | 749 | adapter->tx_ring[j]->reg_idx = rbase_offset + j; |
Alexander Duyck | 26bc19e | 2008-12-26 01:34:11 -0800 | [diff] [blame] | 750 | break; |
| 751 | } |
| 752 | } |
| 753 | |
Alexander Duyck | 4be000c | 2011-08-26 07:45:52 +0000 | [diff] [blame] | 754 | /** |
| 755 | * igb_write_ivar - configure ivar for given MSI-X vector |
| 756 | * @hw: pointer to the HW structure |
| 757 | * @msix_vector: vector number we are allocating to a given ring |
| 758 | * @index: row index of IVAR register to write within IVAR table |
| 759 | * @offset: column offset of in IVAR, should be multiple of 8 |
| 760 | * |
| 761 | * This function is intended to handle the writing of the IVAR register |
| 762 | * for adapters 82576 and newer. The IVAR table consists of 2 columns, |
| 763 | * each containing an cause allocation for an Rx and Tx ring, and a |
| 764 | * variable number of rows depending on the number of queues supported. |
| 765 | **/ |
| 766 | static void igb_write_ivar(struct e1000_hw *hw, int msix_vector, |
| 767 | int index, int offset) |
| 768 | { |
| 769 | u32 ivar = array_rd32(E1000_IVAR0, index); |
| 770 | |
| 771 | /* clear any bits that are currently set */ |
| 772 | ivar &= ~((u32)0xFF << offset); |
| 773 | |
| 774 | /* write vector and valid bit */ |
| 775 | ivar |= (msix_vector | E1000_IVAR_VALID) << offset; |
| 776 | |
| 777 | array_wr32(E1000_IVAR0, index, ivar); |
| 778 | } |
| 779 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 780 | #define IGB_N0_QUEUE -1 |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 781 | static void igb_assign_vector(struct igb_q_vector *q_vector, int msix_vector) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 782 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 783 | struct igb_adapter *adapter = q_vector->adapter; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 784 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 785 | int rx_queue = IGB_N0_QUEUE; |
| 786 | int tx_queue = IGB_N0_QUEUE; |
Alexander Duyck | 4be000c | 2011-08-26 07:45:52 +0000 | [diff] [blame] | 787 | u32 msixbm = 0; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 788 | |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 789 | if (q_vector->rx.ring) |
| 790 | rx_queue = q_vector->rx.ring->reg_idx; |
| 791 | if (q_vector->tx.ring) |
| 792 | tx_queue = q_vector->tx.ring->reg_idx; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 793 | |
| 794 | switch (hw->mac.type) { |
| 795 | case e1000_82575: |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 796 | /* The 82575 assigns vectors using a bitmask, which matches the |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 797 | * bitmask for the EICR/EIMS/EIMC registers. To assign one |
| 798 | * or more queues to a vector, we write the appropriate bits |
| 799 | * into the MSIXBM register for that vector. |
| 800 | */ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 801 | if (rx_queue > IGB_N0_QUEUE) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 802 | msixbm = E1000_EICR_RX_QUEUE0 << rx_queue; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 803 | if (tx_queue > IGB_N0_QUEUE) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 804 | msixbm |= E1000_EICR_TX_QUEUE0 << tx_queue; |
Alexander Duyck | feeb272 | 2010-02-03 21:59:51 +0000 | [diff] [blame] | 805 | if (!adapter->msix_entries && msix_vector == 0) |
| 806 | msixbm |= E1000_EIMS_OTHER; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 807 | array_wr32(E1000_MSIXBM(0), msix_vector, msixbm); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 808 | q_vector->eims_value = msixbm; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 809 | break; |
| 810 | case e1000_82576: |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 811 | /* 82576 uses a table that essentially consists of 2 columns |
Alexander Duyck | 4be000c | 2011-08-26 07:45:52 +0000 | [diff] [blame] | 812 | * with 8 rows. The ordering is column-major so we use the |
| 813 | * lower 3 bits as the row index, and the 4th bit as the |
| 814 | * column offset. |
| 815 | */ |
| 816 | if (rx_queue > IGB_N0_QUEUE) |
| 817 | igb_write_ivar(hw, msix_vector, |
| 818 | rx_queue & 0x7, |
| 819 | (rx_queue & 0x8) << 1); |
| 820 | if (tx_queue > IGB_N0_QUEUE) |
| 821 | igb_write_ivar(hw, msix_vector, |
| 822 | tx_queue & 0x7, |
| 823 | ((tx_queue & 0x8) << 1) + 8); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 824 | q_vector->eims_value = 1 << msix_vector; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 825 | break; |
Alexander Duyck | 55cac24 | 2009-11-19 12:42:21 +0000 | [diff] [blame] | 826 | case e1000_82580: |
Alexander Duyck | d2ba2ed | 2010-03-22 14:08:06 +0000 | [diff] [blame] | 827 | case e1000_i350: |
Carolyn Wyborny | ceb5f13 | 2013-04-18 22:21:30 +0000 | [diff] [blame] | 828 | case e1000_i354: |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 829 | case e1000_i210: |
| 830 | case e1000_i211: |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 831 | /* On 82580 and newer adapters the scheme is similar to 82576 |
Alexander Duyck | 4be000c | 2011-08-26 07:45:52 +0000 | [diff] [blame] | 832 | * however instead of ordering column-major we have things |
| 833 | * ordered row-major. So we traverse the table by using |
| 834 | * bit 0 as the column offset, and the remaining bits as the |
| 835 | * row index. |
| 836 | */ |
| 837 | if (rx_queue > IGB_N0_QUEUE) |
| 838 | igb_write_ivar(hw, msix_vector, |
| 839 | rx_queue >> 1, |
| 840 | (rx_queue & 0x1) << 4); |
| 841 | if (tx_queue > IGB_N0_QUEUE) |
| 842 | igb_write_ivar(hw, msix_vector, |
| 843 | tx_queue >> 1, |
| 844 | ((tx_queue & 0x1) << 4) + 8); |
Alexander Duyck | 55cac24 | 2009-11-19 12:42:21 +0000 | [diff] [blame] | 845 | q_vector->eims_value = 1 << msix_vector; |
| 846 | break; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 847 | default: |
| 848 | BUG(); |
| 849 | break; |
| 850 | } |
Alexander Duyck | 26b3927 | 2010-02-17 01:00:41 +0000 | [diff] [blame] | 851 | |
| 852 | /* add q_vector eims value to global eims_enable_mask */ |
| 853 | adapter->eims_enable_mask |= q_vector->eims_value; |
| 854 | |
| 855 | /* configure q_vector to set itr on first interrupt */ |
| 856 | q_vector->set_itr = 1; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 857 | } |
| 858 | |
| 859 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 860 | * igb_configure_msix - Configure MSI-X hardware |
| 861 | * @adapter: board private structure to initialize |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 862 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 863 | * igb_configure_msix sets up the hardware to properly |
| 864 | * generate MSI-X interrupts. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 865 | **/ |
| 866 | static void igb_configure_msix(struct igb_adapter *adapter) |
| 867 | { |
| 868 | u32 tmp; |
| 869 | int i, vector = 0; |
| 870 | struct e1000_hw *hw = &adapter->hw; |
| 871 | |
| 872 | adapter->eims_enable_mask = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 873 | |
| 874 | /* set vector for other causes, i.e. link changes */ |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 875 | switch (hw->mac.type) { |
| 876 | case e1000_82575: |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 877 | tmp = rd32(E1000_CTRL_EXT); |
| 878 | /* enable MSI-X PBA support*/ |
| 879 | tmp |= E1000_CTRL_EXT_PBA_CLR; |
| 880 | |
| 881 | /* Auto-Mask interrupts upon ICR read. */ |
| 882 | tmp |= E1000_CTRL_EXT_EIAME; |
| 883 | tmp |= E1000_CTRL_EXT_IRCA; |
| 884 | |
| 885 | wr32(E1000_CTRL_EXT, tmp); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 886 | |
| 887 | /* enable msix_other interrupt */ |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 888 | array_wr32(E1000_MSIXBM(0), vector++, E1000_EIMS_OTHER); |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 889 | adapter->eims_other = E1000_EIMS_OTHER; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 890 | |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 891 | break; |
| 892 | |
| 893 | case e1000_82576: |
Alexander Duyck | 55cac24 | 2009-11-19 12:42:21 +0000 | [diff] [blame] | 894 | case e1000_82580: |
Alexander Duyck | d2ba2ed | 2010-03-22 14:08:06 +0000 | [diff] [blame] | 895 | case e1000_i350: |
Carolyn Wyborny | ceb5f13 | 2013-04-18 22:21:30 +0000 | [diff] [blame] | 896 | case e1000_i354: |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 897 | case e1000_i210: |
| 898 | case e1000_i211: |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 899 | /* Turn on MSI-X capability first, or our settings |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 900 | * won't stick. And it will take days to debug. |
| 901 | */ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 902 | wr32(E1000_GPIE, E1000_GPIE_MSIX_MODE | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 903 | E1000_GPIE_PBA | E1000_GPIE_EIAME | |
| 904 | E1000_GPIE_NSICR); |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 905 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 906 | /* enable msix_other interrupt */ |
| 907 | adapter->eims_other = 1 << vector; |
| 908 | tmp = (vector++ | E1000_IVAR_VALID) << 8; |
| 909 | |
| 910 | wr32(E1000_IVAR_MISC, tmp); |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 911 | break; |
| 912 | default: |
| 913 | /* do nothing, since nothing else supports MSI-X */ |
| 914 | break; |
| 915 | } /* switch (hw->mac.type) */ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 916 | |
| 917 | adapter->eims_enable_mask |= adapter->eims_other; |
| 918 | |
Alexander Duyck | 26b3927 | 2010-02-17 01:00:41 +0000 | [diff] [blame] | 919 | for (i = 0; i < adapter->num_q_vectors; i++) |
| 920 | igb_assign_vector(adapter->q_vector[i], vector++); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 921 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 922 | wrfl(); |
| 923 | } |
| 924 | |
| 925 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 926 | * igb_request_msix - Initialize MSI-X interrupts |
| 927 | * @adapter: board private structure to initialize |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 928 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 929 | * igb_request_msix allocates MSI-X vectors and requests interrupts from the |
| 930 | * kernel. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 931 | **/ |
| 932 | static int igb_request_msix(struct igb_adapter *adapter) |
| 933 | { |
| 934 | struct net_device *netdev = adapter->netdev; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 935 | struct e1000_hw *hw = &adapter->hw; |
Stefan Assmann | 52285b7 | 2012-12-04 06:00:17 +0000 | [diff] [blame] | 936 | int i, err = 0, vector = 0, free_vector = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 937 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 938 | err = request_irq(adapter->msix_entries[vector].vector, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 939 | igb_msix_other, 0, netdev->name, adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 940 | if (err) |
Stefan Assmann | 52285b7 | 2012-12-04 06:00:17 +0000 | [diff] [blame] | 941 | goto err_out; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 942 | |
| 943 | for (i = 0; i < adapter->num_q_vectors; i++) { |
| 944 | struct igb_q_vector *q_vector = adapter->q_vector[i]; |
| 945 | |
Stefan Assmann | 52285b7 | 2012-12-04 06:00:17 +0000 | [diff] [blame] | 946 | vector++; |
| 947 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 948 | q_vector->itr_register = hw->hw_addr + E1000_EITR(vector); |
| 949 | |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 950 | if (q_vector->rx.ring && q_vector->tx.ring) |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 951 | sprintf(q_vector->name, "%s-TxRx-%u", netdev->name, |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 952 | q_vector->rx.ring->queue_index); |
| 953 | else if (q_vector->tx.ring) |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 954 | sprintf(q_vector->name, "%s-tx-%u", netdev->name, |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 955 | q_vector->tx.ring->queue_index); |
| 956 | else if (q_vector->rx.ring) |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 957 | sprintf(q_vector->name, "%s-rx-%u", netdev->name, |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 958 | q_vector->rx.ring->queue_index); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 959 | else |
| 960 | sprintf(q_vector->name, "%s-unused", netdev->name); |
| 961 | |
| 962 | err = request_irq(adapter->msix_entries[vector].vector, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 963 | igb_msix_ring, 0, q_vector->name, |
| 964 | q_vector); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 965 | if (err) |
Stefan Assmann | 52285b7 | 2012-12-04 06:00:17 +0000 | [diff] [blame] | 966 | goto err_free; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 967 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 968 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 969 | igb_configure_msix(adapter); |
| 970 | return 0; |
Stefan Assmann | 52285b7 | 2012-12-04 06:00:17 +0000 | [diff] [blame] | 971 | |
| 972 | err_free: |
| 973 | /* free already assigned IRQs */ |
| 974 | free_irq(adapter->msix_entries[free_vector++].vector, adapter); |
| 975 | |
| 976 | vector--; |
| 977 | for (i = 0; i < vector; i++) { |
| 978 | free_irq(adapter->msix_entries[free_vector++].vector, |
| 979 | adapter->q_vector[i]); |
| 980 | } |
| 981 | err_out: |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 982 | return err; |
| 983 | } |
| 984 | |
| 985 | static void igb_reset_interrupt_capability(struct igb_adapter *adapter) |
| 986 | { |
| 987 | if (adapter->msix_entries) { |
| 988 | pci_disable_msix(adapter->pdev); |
| 989 | kfree(adapter->msix_entries); |
| 990 | adapter->msix_entries = NULL; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 991 | } else if (adapter->flags & IGB_FLAG_HAS_MSI) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 992 | pci_disable_msi(adapter->pdev); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 993 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 994 | } |
| 995 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 996 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 997 | * igb_free_q_vector - Free memory allocated for specific interrupt vector |
| 998 | * @adapter: board private structure to initialize |
| 999 | * @v_idx: Index of vector to be freed |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1000 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1001 | * This function frees the memory allocated to the q_vector. In addition if |
| 1002 | * NAPI is enabled it will delete any references to the NAPI struct prior |
| 1003 | * to freeing the q_vector. |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1004 | **/ |
| 1005 | static void igb_free_q_vector(struct igb_adapter *adapter, int v_idx) |
| 1006 | { |
| 1007 | struct igb_q_vector *q_vector = adapter->q_vector[v_idx]; |
| 1008 | |
| 1009 | if (q_vector->tx.ring) |
| 1010 | adapter->tx_ring[q_vector->tx.ring->queue_index] = NULL; |
| 1011 | |
| 1012 | if (q_vector->rx.ring) |
| 1013 | adapter->tx_ring[q_vector->rx.ring->queue_index] = NULL; |
| 1014 | |
| 1015 | adapter->q_vector[v_idx] = NULL; |
| 1016 | netif_napi_del(&q_vector->napi); |
| 1017 | |
Akeem G Abodunrin | 7f90128 | 2013-06-27 09:10:23 +0000 | [diff] [blame] | 1018 | /* igb_get_stats64() might access the rings on this vector, |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1019 | * we must wait a grace period before freeing it. |
| 1020 | */ |
| 1021 | kfree_rcu(q_vector, rcu); |
| 1022 | } |
| 1023 | |
| 1024 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1025 | * igb_free_q_vectors - Free memory allocated for interrupt vectors |
| 1026 | * @adapter: board private structure to initialize |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1027 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1028 | * This function frees the memory allocated to the q_vectors. In addition if |
| 1029 | * NAPI is enabled it will delete any references to the NAPI struct prior |
| 1030 | * to freeing the q_vector. |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1031 | **/ |
| 1032 | static void igb_free_q_vectors(struct igb_adapter *adapter) |
| 1033 | { |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1034 | int v_idx = adapter->num_q_vectors; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1035 | |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1036 | adapter->num_tx_queues = 0; |
| 1037 | adapter->num_rx_queues = 0; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1038 | adapter->num_q_vectors = 0; |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1039 | |
| 1040 | while (v_idx--) |
| 1041 | igb_free_q_vector(adapter, v_idx); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1042 | } |
| 1043 | |
| 1044 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1045 | * igb_clear_interrupt_scheme - reset the device to a state of no interrupts |
| 1046 | * @adapter: board private structure to initialize |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1047 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1048 | * This function resets the device so that it has 0 Rx queues, Tx queues, and |
| 1049 | * MSI-X interrupts allocated. |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1050 | */ |
| 1051 | static void igb_clear_interrupt_scheme(struct igb_adapter *adapter) |
| 1052 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1053 | igb_free_q_vectors(adapter); |
| 1054 | igb_reset_interrupt_capability(adapter); |
| 1055 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1056 | |
| 1057 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1058 | * igb_set_interrupt_capability - set MSI or MSI-X if supported |
| 1059 | * @adapter: board private structure to initialize |
| 1060 | * @msix: boolean value of MSIX capability |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1061 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1062 | * Attempt to configure interrupts using the best available |
| 1063 | * capabilities of the hardware and kernel. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1064 | **/ |
Stefan Assmann | 53c7d06 | 2012-12-04 06:00:12 +0000 | [diff] [blame] | 1065 | static void igb_set_interrupt_capability(struct igb_adapter *adapter, bool msix) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1066 | { |
| 1067 | int err; |
| 1068 | int numvecs, i; |
| 1069 | |
Stefan Assmann | 53c7d06 | 2012-12-04 06:00:12 +0000 | [diff] [blame] | 1070 | if (!msix) |
| 1071 | goto msi_only; |
| 1072 | |
Alexander Duyck | 83b7180 | 2009-02-06 23:15:45 +0000 | [diff] [blame] | 1073 | /* Number of supported queues. */ |
Alexander Duyck | a99955f | 2009-11-12 18:37:19 +0000 | [diff] [blame] | 1074 | adapter->num_rx_queues = adapter->rss_queues; |
Greg Rose | 5fa8517 | 2010-07-01 13:38:16 +0000 | [diff] [blame] | 1075 | if (adapter->vfs_allocated_count) |
| 1076 | adapter->num_tx_queues = 1; |
| 1077 | else |
| 1078 | adapter->num_tx_queues = adapter->rss_queues; |
Alexander Duyck | 83b7180 | 2009-02-06 23:15:45 +0000 | [diff] [blame] | 1079 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1080 | /* start with one vector for every Rx queue */ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1081 | numvecs = adapter->num_rx_queues; |
| 1082 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1083 | /* if Tx handler is separate add 1 for every Tx queue */ |
Alexander Duyck | a99955f | 2009-11-12 18:37:19 +0000 | [diff] [blame] | 1084 | if (!(adapter->flags & IGB_FLAG_QUEUE_PAIRS)) |
| 1085 | numvecs += adapter->num_tx_queues; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1086 | |
| 1087 | /* store the number of vectors reserved for queues */ |
| 1088 | adapter->num_q_vectors = numvecs; |
| 1089 | |
| 1090 | /* add 1 vector for link status interrupts */ |
| 1091 | numvecs++; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1092 | adapter->msix_entries = kcalloc(numvecs, sizeof(struct msix_entry), |
| 1093 | GFP_KERNEL); |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 1094 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1095 | if (!adapter->msix_entries) |
| 1096 | goto msi_only; |
| 1097 | |
| 1098 | for (i = 0; i < numvecs; i++) |
| 1099 | adapter->msix_entries[i].entry = i; |
| 1100 | |
| 1101 | err = pci_enable_msix(adapter->pdev, |
| 1102 | adapter->msix_entries, |
| 1103 | numvecs); |
| 1104 | if (err == 0) |
Alexander Duyck | 0c2cc02 | 2012-09-25 00:31:22 +0000 | [diff] [blame] | 1105 | return; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1106 | |
| 1107 | igb_reset_interrupt_capability(adapter); |
| 1108 | |
| 1109 | /* If we can't do MSI-X, try MSI */ |
| 1110 | msi_only: |
Alexander Duyck | 2a3abf6 | 2009-04-07 14:37:52 +0000 | [diff] [blame] | 1111 | #ifdef CONFIG_PCI_IOV |
| 1112 | /* disable SR-IOV for non MSI-X configurations */ |
| 1113 | if (adapter->vf_data) { |
| 1114 | struct e1000_hw *hw = &adapter->hw; |
| 1115 | /* disable iov and allow time for transactions to clear */ |
| 1116 | pci_disable_sriov(adapter->pdev); |
| 1117 | msleep(500); |
| 1118 | |
| 1119 | kfree(adapter->vf_data); |
| 1120 | adapter->vf_data = NULL; |
| 1121 | wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ); |
Jesse Brandeburg | 945a515 | 2011-07-20 00:56:21 +0000 | [diff] [blame] | 1122 | wrfl(); |
Alexander Duyck | 2a3abf6 | 2009-04-07 14:37:52 +0000 | [diff] [blame] | 1123 | msleep(100); |
| 1124 | dev_info(&adapter->pdev->dev, "IOV Disabled\n"); |
| 1125 | } |
| 1126 | #endif |
Alexander Duyck | 4fc82ad | 2009-10-27 23:45:42 +0000 | [diff] [blame] | 1127 | adapter->vfs_allocated_count = 0; |
Alexander Duyck | a99955f | 2009-11-12 18:37:19 +0000 | [diff] [blame] | 1128 | adapter->rss_queues = 1; |
Alexander Duyck | 4fc82ad | 2009-10-27 23:45:42 +0000 | [diff] [blame] | 1129 | adapter->flags |= IGB_FLAG_QUEUE_PAIRS; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1130 | adapter->num_rx_queues = 1; |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 1131 | adapter->num_tx_queues = 1; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1132 | adapter->num_q_vectors = 1; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1133 | if (!pci_enable_msi(adapter->pdev)) |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 1134 | adapter->flags |= IGB_FLAG_HAS_MSI; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1135 | } |
| 1136 | |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1137 | static void igb_add_ring(struct igb_ring *ring, |
| 1138 | struct igb_ring_container *head) |
| 1139 | { |
| 1140 | head->ring = ring; |
| 1141 | head->count++; |
| 1142 | } |
| 1143 | |
| 1144 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1145 | * igb_alloc_q_vector - Allocate memory for a single interrupt vector |
| 1146 | * @adapter: board private structure to initialize |
| 1147 | * @v_count: q_vectors allocated on adapter, used for ring interleaving |
| 1148 | * @v_idx: index of vector in adapter struct |
| 1149 | * @txr_count: total number of Tx rings to allocate |
| 1150 | * @txr_idx: index of first Tx ring to allocate |
| 1151 | * @rxr_count: total number of Rx rings to allocate |
| 1152 | * @rxr_idx: index of first Rx ring to allocate |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1153 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1154 | * We allocate one q_vector. If allocation fails we return -ENOMEM. |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1155 | **/ |
| 1156 | static int igb_alloc_q_vector(struct igb_adapter *adapter, |
| 1157 | int v_count, int v_idx, |
| 1158 | int txr_count, int txr_idx, |
| 1159 | int rxr_count, int rxr_idx) |
| 1160 | { |
| 1161 | struct igb_q_vector *q_vector; |
| 1162 | struct igb_ring *ring; |
| 1163 | int ring_count, size; |
| 1164 | |
| 1165 | /* igb only supports 1 Tx and/or 1 Rx queue per vector */ |
| 1166 | if (txr_count > 1 || rxr_count > 1) |
| 1167 | return -ENOMEM; |
| 1168 | |
| 1169 | ring_count = txr_count + rxr_count; |
| 1170 | size = sizeof(struct igb_q_vector) + |
| 1171 | (sizeof(struct igb_ring) * ring_count); |
| 1172 | |
| 1173 | /* allocate q_vector and rings */ |
| 1174 | q_vector = kzalloc(size, GFP_KERNEL); |
| 1175 | if (!q_vector) |
| 1176 | return -ENOMEM; |
| 1177 | |
| 1178 | /* initialize NAPI */ |
| 1179 | netif_napi_add(adapter->netdev, &q_vector->napi, |
| 1180 | igb_poll, 64); |
| 1181 | |
| 1182 | /* tie q_vector and adapter together */ |
| 1183 | adapter->q_vector[v_idx] = q_vector; |
| 1184 | q_vector->adapter = adapter; |
| 1185 | |
| 1186 | /* initialize work limits */ |
| 1187 | q_vector->tx.work_limit = adapter->tx_work_limit; |
| 1188 | |
| 1189 | /* initialize ITR configuration */ |
| 1190 | q_vector->itr_register = adapter->hw.hw_addr + E1000_EITR(0); |
| 1191 | q_vector->itr_val = IGB_START_ITR; |
| 1192 | |
| 1193 | /* initialize pointer to rings */ |
| 1194 | ring = q_vector->ring; |
| 1195 | |
Alexander Duyck | 4e227667 | 2013-02-12 02:31:01 +0000 | [diff] [blame] | 1196 | /* intialize ITR */ |
| 1197 | if (rxr_count) { |
| 1198 | /* rx or rx/tx vector */ |
| 1199 | if (!adapter->rx_itr_setting || adapter->rx_itr_setting > 3) |
| 1200 | q_vector->itr_val = adapter->rx_itr_setting; |
| 1201 | } else { |
| 1202 | /* tx only vector */ |
| 1203 | if (!adapter->tx_itr_setting || adapter->tx_itr_setting > 3) |
| 1204 | q_vector->itr_val = adapter->tx_itr_setting; |
| 1205 | } |
| 1206 | |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1207 | if (txr_count) { |
| 1208 | /* assign generic ring traits */ |
| 1209 | ring->dev = &adapter->pdev->dev; |
| 1210 | ring->netdev = adapter->netdev; |
| 1211 | |
| 1212 | /* configure backlink on ring */ |
| 1213 | ring->q_vector = q_vector; |
| 1214 | |
| 1215 | /* update q_vector Tx values */ |
| 1216 | igb_add_ring(ring, &q_vector->tx); |
| 1217 | |
| 1218 | /* For 82575, context index must be unique per ring. */ |
| 1219 | if (adapter->hw.mac.type == e1000_82575) |
| 1220 | set_bit(IGB_RING_FLAG_TX_CTX_IDX, &ring->flags); |
| 1221 | |
| 1222 | /* apply Tx specific ring traits */ |
| 1223 | ring->count = adapter->tx_ring_count; |
| 1224 | ring->queue_index = txr_idx; |
| 1225 | |
| 1226 | /* assign ring to adapter */ |
| 1227 | adapter->tx_ring[txr_idx] = ring; |
| 1228 | |
| 1229 | /* push pointer to next ring */ |
| 1230 | ring++; |
| 1231 | } |
| 1232 | |
| 1233 | if (rxr_count) { |
| 1234 | /* assign generic ring traits */ |
| 1235 | ring->dev = &adapter->pdev->dev; |
| 1236 | ring->netdev = adapter->netdev; |
| 1237 | |
| 1238 | /* configure backlink on ring */ |
| 1239 | ring->q_vector = q_vector; |
| 1240 | |
| 1241 | /* update q_vector Rx values */ |
| 1242 | igb_add_ring(ring, &q_vector->rx); |
| 1243 | |
| 1244 | /* set flag indicating ring supports SCTP checksum offload */ |
| 1245 | if (adapter->hw.mac.type >= e1000_82576) |
| 1246 | set_bit(IGB_RING_FLAG_RX_SCTP_CSUM, &ring->flags); |
| 1247 | |
Carolyn Wyborny | ceb5f13 | 2013-04-18 22:21:30 +0000 | [diff] [blame] | 1248 | /* |
| 1249 | * On i350, i354, i210, and i211, loopback VLAN packets |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1250 | * have the tag byte-swapped. |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1251 | */ |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1252 | if (adapter->hw.mac.type >= e1000_i350) |
| 1253 | set_bit(IGB_RING_FLAG_RX_LB_VLAN_BSWAP, &ring->flags); |
| 1254 | |
| 1255 | /* apply Rx specific ring traits */ |
| 1256 | ring->count = adapter->rx_ring_count; |
| 1257 | ring->queue_index = rxr_idx; |
| 1258 | |
| 1259 | /* assign ring to adapter */ |
| 1260 | adapter->rx_ring[rxr_idx] = ring; |
| 1261 | } |
| 1262 | |
| 1263 | return 0; |
| 1264 | } |
| 1265 | |
| 1266 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1267 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1268 | * igb_alloc_q_vectors - Allocate memory for interrupt vectors |
| 1269 | * @adapter: board private structure to initialize |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1270 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1271 | * We allocate one q_vector per queue interrupt. If allocation fails we |
| 1272 | * return -ENOMEM. |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1273 | **/ |
| 1274 | static int igb_alloc_q_vectors(struct igb_adapter *adapter) |
| 1275 | { |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1276 | int q_vectors = adapter->num_q_vectors; |
| 1277 | int rxr_remaining = adapter->num_rx_queues; |
| 1278 | int txr_remaining = adapter->num_tx_queues; |
| 1279 | int rxr_idx = 0, txr_idx = 0, v_idx = 0; |
| 1280 | int err; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1281 | |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1282 | if (q_vectors >= (rxr_remaining + txr_remaining)) { |
| 1283 | for (; rxr_remaining; v_idx++) { |
| 1284 | err = igb_alloc_q_vector(adapter, q_vectors, v_idx, |
| 1285 | 0, 0, 1, rxr_idx); |
| 1286 | |
| 1287 | if (err) |
| 1288 | goto err_out; |
| 1289 | |
| 1290 | /* update counts and index */ |
| 1291 | rxr_remaining--; |
| 1292 | rxr_idx++; |
| 1293 | } |
| 1294 | } |
| 1295 | |
| 1296 | for (; v_idx < q_vectors; v_idx++) { |
| 1297 | int rqpv = DIV_ROUND_UP(rxr_remaining, q_vectors - v_idx); |
| 1298 | int tqpv = DIV_ROUND_UP(txr_remaining, q_vectors - v_idx); |
| 1299 | err = igb_alloc_q_vector(adapter, q_vectors, v_idx, |
| 1300 | tqpv, txr_idx, rqpv, rxr_idx); |
| 1301 | |
| 1302 | if (err) |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1303 | goto err_out; |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1304 | |
| 1305 | /* update counts and index */ |
| 1306 | rxr_remaining -= rqpv; |
| 1307 | txr_remaining -= tqpv; |
| 1308 | rxr_idx++; |
| 1309 | txr_idx++; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1310 | } |
Alexander Duyck | 81c2fc2 | 2011-08-26 07:45:20 +0000 | [diff] [blame] | 1311 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1312 | return 0; |
| 1313 | |
| 1314 | err_out: |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1315 | adapter->num_tx_queues = 0; |
| 1316 | adapter->num_rx_queues = 0; |
| 1317 | adapter->num_q_vectors = 0; |
| 1318 | |
| 1319 | while (v_idx--) |
| 1320 | igb_free_q_vector(adapter, v_idx); |
| 1321 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1322 | return -ENOMEM; |
| 1323 | } |
| 1324 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1325 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1326 | * igb_init_interrupt_scheme - initialize interrupts, allocate queues/vectors |
| 1327 | * @adapter: board private structure to initialize |
| 1328 | * @msix: boolean value of MSIX capability |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1329 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1330 | * This function initializes the interrupts and allocates all of the queues. |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1331 | **/ |
Stefan Assmann | 53c7d06 | 2012-12-04 06:00:12 +0000 | [diff] [blame] | 1332 | static int igb_init_interrupt_scheme(struct igb_adapter *adapter, bool msix) |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1333 | { |
| 1334 | struct pci_dev *pdev = adapter->pdev; |
| 1335 | int err; |
| 1336 | |
Stefan Assmann | 53c7d06 | 2012-12-04 06:00:12 +0000 | [diff] [blame] | 1337 | igb_set_interrupt_capability(adapter, msix); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1338 | |
| 1339 | err = igb_alloc_q_vectors(adapter); |
| 1340 | if (err) { |
| 1341 | dev_err(&pdev->dev, "Unable to allocate memory for vectors\n"); |
| 1342 | goto err_alloc_q_vectors; |
| 1343 | } |
| 1344 | |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1345 | igb_cache_ring_register(adapter); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1346 | |
| 1347 | return 0; |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1348 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1349 | err_alloc_q_vectors: |
| 1350 | igb_reset_interrupt_capability(adapter); |
| 1351 | return err; |
| 1352 | } |
| 1353 | |
| 1354 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1355 | * igb_request_irq - initialize interrupts |
| 1356 | * @adapter: board private structure to initialize |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1357 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1358 | * Attempts to configure interrupts using the best available |
| 1359 | * capabilities of the hardware and kernel. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1360 | **/ |
| 1361 | static int igb_request_irq(struct igb_adapter *adapter) |
| 1362 | { |
| 1363 | struct net_device *netdev = adapter->netdev; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1364 | struct pci_dev *pdev = adapter->pdev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1365 | int err = 0; |
| 1366 | |
| 1367 | if (adapter->msix_entries) { |
| 1368 | err = igb_request_msix(adapter); |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 1369 | if (!err) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1370 | goto request_done; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1371 | /* fall back to MSI */ |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 1372 | igb_free_all_tx_resources(adapter); |
| 1373 | igb_free_all_rx_resources(adapter); |
Stefan Assmann | 53c7d06 | 2012-12-04 06:00:12 +0000 | [diff] [blame] | 1374 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1375 | igb_clear_interrupt_scheme(adapter); |
Stefan Assmann | 53c7d06 | 2012-12-04 06:00:12 +0000 | [diff] [blame] | 1376 | err = igb_init_interrupt_scheme(adapter, false); |
| 1377 | if (err) |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1378 | goto request_done; |
Stefan Assmann | 53c7d06 | 2012-12-04 06:00:12 +0000 | [diff] [blame] | 1379 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1380 | igb_setup_all_tx_resources(adapter); |
| 1381 | igb_setup_all_rx_resources(adapter); |
Stefan Assmann | 53c7d06 | 2012-12-04 06:00:12 +0000 | [diff] [blame] | 1382 | igb_configure(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1383 | } |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 1384 | |
Alexander Duyck | c74d588 | 2011-08-26 07:46:45 +0000 | [diff] [blame] | 1385 | igb_assign_vector(adapter->q_vector[0], 0); |
| 1386 | |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 1387 | if (adapter->flags & IGB_FLAG_HAS_MSI) { |
Alexander Duyck | c74d588 | 2011-08-26 07:46:45 +0000 | [diff] [blame] | 1388 | err = request_irq(pdev->irq, igb_intr_msi, 0, |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1389 | netdev->name, adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1390 | if (!err) |
| 1391 | goto request_done; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1392 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1393 | /* fall back to legacy interrupts */ |
| 1394 | igb_reset_interrupt_capability(adapter); |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 1395 | adapter->flags &= ~IGB_FLAG_HAS_MSI; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1396 | } |
| 1397 | |
Alexander Duyck | c74d588 | 2011-08-26 07:46:45 +0000 | [diff] [blame] | 1398 | err = request_irq(pdev->irq, igb_intr, IRQF_SHARED, |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1399 | netdev->name, adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1400 | |
Andy Gospodarek | 6cb5e57 | 2008-02-15 14:05:25 -0800 | [diff] [blame] | 1401 | if (err) |
Alexander Duyck | c74d588 | 2011-08-26 07:46:45 +0000 | [diff] [blame] | 1402 | dev_err(&pdev->dev, "Error %d getting interrupt\n", |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1403 | err); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1404 | |
| 1405 | request_done: |
| 1406 | return err; |
| 1407 | } |
| 1408 | |
| 1409 | static void igb_free_irq(struct igb_adapter *adapter) |
| 1410 | { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1411 | if (adapter->msix_entries) { |
| 1412 | int vector = 0, i; |
| 1413 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1414 | free_irq(adapter->msix_entries[vector++].vector, adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1415 | |
Alexander Duyck | 0d1ae7f | 2011-08-26 07:46:34 +0000 | [diff] [blame] | 1416 | for (i = 0; i < adapter->num_q_vectors; i++) |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1417 | free_irq(adapter->msix_entries[vector++].vector, |
Alexander Duyck | 0d1ae7f | 2011-08-26 07:46:34 +0000 | [diff] [blame] | 1418 | adapter->q_vector[i]); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1419 | } else { |
| 1420 | free_irq(adapter->pdev->irq, adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1421 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1422 | } |
| 1423 | |
| 1424 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1425 | * igb_irq_disable - Mask off interrupt generation on the NIC |
| 1426 | * @adapter: board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1427 | **/ |
| 1428 | static void igb_irq_disable(struct igb_adapter *adapter) |
| 1429 | { |
| 1430 | struct e1000_hw *hw = &adapter->hw; |
| 1431 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1432 | /* we need to be careful when disabling interrupts. The VFs are also |
Alexander Duyck | 25568a5 | 2009-10-27 23:49:59 +0000 | [diff] [blame] | 1433 | * mapped into these registers and so clearing the bits can cause |
| 1434 | * issues on the VF drivers so we only need to clear what we set |
| 1435 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1436 | if (adapter->msix_entries) { |
Alexander Duyck | 2dfd121 | 2009-09-03 14:49:15 +0000 | [diff] [blame] | 1437 | u32 regval = rd32(E1000_EIAM); |
| 1438 | wr32(E1000_EIAM, regval & ~adapter->eims_enable_mask); |
| 1439 | wr32(E1000_EIMC, adapter->eims_enable_mask); |
| 1440 | regval = rd32(E1000_EIAC); |
| 1441 | wr32(E1000_EIAC, regval & ~adapter->eims_enable_mask); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1442 | } |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 1443 | |
| 1444 | wr32(E1000_IAM, 0); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1445 | wr32(E1000_IMC, ~0); |
| 1446 | wrfl(); |
Emil Tantilov | 81a6185 | 2010-08-02 14:40:52 +0000 | [diff] [blame] | 1447 | if (adapter->msix_entries) { |
| 1448 | int i; |
| 1449 | for (i = 0; i < adapter->num_q_vectors; i++) |
| 1450 | synchronize_irq(adapter->msix_entries[i].vector); |
| 1451 | } else { |
| 1452 | synchronize_irq(adapter->pdev->irq); |
| 1453 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1454 | } |
| 1455 | |
| 1456 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1457 | * igb_irq_enable - Enable default interrupt generation settings |
| 1458 | * @adapter: board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1459 | **/ |
| 1460 | static void igb_irq_enable(struct igb_adapter *adapter) |
| 1461 | { |
| 1462 | struct e1000_hw *hw = &adapter->hw; |
| 1463 | |
| 1464 | if (adapter->msix_entries) { |
Alexander Duyck | 06218a8 | 2011-08-26 07:46:55 +0000 | [diff] [blame] | 1465 | u32 ims = E1000_IMS_LSC | E1000_IMS_DOUTSYNC | E1000_IMS_DRSTA; |
Alexander Duyck | 2dfd121 | 2009-09-03 14:49:15 +0000 | [diff] [blame] | 1466 | u32 regval = rd32(E1000_EIAC); |
| 1467 | wr32(E1000_EIAC, regval | adapter->eims_enable_mask); |
| 1468 | regval = rd32(E1000_EIAM); |
| 1469 | wr32(E1000_EIAM, regval | adapter->eims_enable_mask); |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 1470 | wr32(E1000_EIMS, adapter->eims_enable_mask); |
Alexander Duyck | 25568a5 | 2009-10-27 23:49:59 +0000 | [diff] [blame] | 1471 | if (adapter->vfs_allocated_count) { |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 1472 | wr32(E1000_MBVFIMR, 0xFF); |
Alexander Duyck | 25568a5 | 2009-10-27 23:49:59 +0000 | [diff] [blame] | 1473 | ims |= E1000_IMS_VMMB; |
| 1474 | } |
| 1475 | wr32(E1000_IMS, ims); |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 1476 | } else { |
Alexander Duyck | 55cac24 | 2009-11-19 12:42:21 +0000 | [diff] [blame] | 1477 | wr32(E1000_IMS, IMS_ENABLE_MASK | |
| 1478 | E1000_IMS_DRSTA); |
| 1479 | wr32(E1000_IAM, IMS_ENABLE_MASK | |
| 1480 | E1000_IMS_DRSTA); |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 1481 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1482 | } |
| 1483 | |
| 1484 | static void igb_update_mng_vlan(struct igb_adapter *adapter) |
| 1485 | { |
Alexander Duyck | 5146623 | 2009-10-27 23:47:35 +0000 | [diff] [blame] | 1486 | struct e1000_hw *hw = &adapter->hw; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1487 | u16 vid = adapter->hw.mng_cookie.vlan_id; |
| 1488 | u16 old_vid = adapter->mng_vlan_id; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1489 | |
Alexander Duyck | 5146623 | 2009-10-27 23:47:35 +0000 | [diff] [blame] | 1490 | if (hw->mng_cookie.status & E1000_MNG_DHCP_COOKIE_STATUS_VLAN) { |
| 1491 | /* add VID to filter table */ |
| 1492 | igb_vfta_set(hw, vid, true); |
| 1493 | adapter->mng_vlan_id = vid; |
| 1494 | } else { |
| 1495 | adapter->mng_vlan_id = IGB_MNG_VLAN_NONE; |
| 1496 | } |
| 1497 | |
| 1498 | if ((old_vid != (u16)IGB_MNG_VLAN_NONE) && |
| 1499 | (vid != old_vid) && |
Jiri Pirko | b2cb09b | 2011-07-21 03:27:27 +0000 | [diff] [blame] | 1500 | !test_bit(old_vid, adapter->active_vlans)) { |
Alexander Duyck | 5146623 | 2009-10-27 23:47:35 +0000 | [diff] [blame] | 1501 | /* remove VID from filter table */ |
| 1502 | igb_vfta_set(hw, old_vid, false); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1503 | } |
| 1504 | } |
| 1505 | |
| 1506 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1507 | * igb_release_hw_control - release control of the h/w to f/w |
| 1508 | * @adapter: address of board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1509 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1510 | * igb_release_hw_control resets CTRL_EXT:DRV_LOAD bit. |
| 1511 | * For ASF and Pass Through versions of f/w this means that the |
| 1512 | * driver is no longer loaded. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1513 | **/ |
| 1514 | static void igb_release_hw_control(struct igb_adapter *adapter) |
| 1515 | { |
| 1516 | struct e1000_hw *hw = &adapter->hw; |
| 1517 | u32 ctrl_ext; |
| 1518 | |
| 1519 | /* Let firmware take over control of h/w */ |
| 1520 | ctrl_ext = rd32(E1000_CTRL_EXT); |
| 1521 | wr32(E1000_CTRL_EXT, |
| 1522 | ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD); |
| 1523 | } |
| 1524 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1525 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1526 | * igb_get_hw_control - get control of the h/w from f/w |
| 1527 | * @adapter: address of board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1528 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1529 | * igb_get_hw_control sets CTRL_EXT:DRV_LOAD bit. |
| 1530 | * For ASF and Pass Through versions of f/w this means that |
| 1531 | * the driver is loaded. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1532 | **/ |
| 1533 | static void igb_get_hw_control(struct igb_adapter *adapter) |
| 1534 | { |
| 1535 | struct e1000_hw *hw = &adapter->hw; |
| 1536 | u32 ctrl_ext; |
| 1537 | |
| 1538 | /* Let firmware know the driver has taken over */ |
| 1539 | ctrl_ext = rd32(E1000_CTRL_EXT); |
| 1540 | wr32(E1000_CTRL_EXT, |
| 1541 | ctrl_ext | E1000_CTRL_EXT_DRV_LOAD); |
| 1542 | } |
| 1543 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1544 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1545 | * igb_configure - configure the hardware for RX and TX |
| 1546 | * @adapter: private board structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1547 | **/ |
| 1548 | static void igb_configure(struct igb_adapter *adapter) |
| 1549 | { |
| 1550 | struct net_device *netdev = adapter->netdev; |
| 1551 | int i; |
| 1552 | |
| 1553 | igb_get_hw_control(adapter); |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 1554 | igb_set_rx_mode(netdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1555 | |
| 1556 | igb_restore_vlan(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1557 | |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 1558 | igb_setup_tctl(adapter); |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 1559 | igb_setup_mrqc(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1560 | igb_setup_rctl(adapter); |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 1561 | |
| 1562 | igb_configure_tx(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1563 | igb_configure_rx(adapter); |
Alexander Duyck | 662d720 | 2008-06-27 11:00:29 -0700 | [diff] [blame] | 1564 | |
| 1565 | igb_rx_fifo_flush_82575(&adapter->hw); |
| 1566 | |
Alexander Duyck | c493ea4 | 2009-03-20 00:16:50 +0000 | [diff] [blame] | 1567 | /* call igb_desc_unused which always leaves |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1568 | * at least 1 descriptor unused to make sure |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1569 | * next_to_use != next_to_clean |
| 1570 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1571 | for (i = 0; i < adapter->num_rx_queues; i++) { |
Alexander Duyck | 3025a44 | 2010-02-17 01:02:39 +0000 | [diff] [blame] | 1572 | struct igb_ring *ring = adapter->rx_ring[i]; |
Alexander Duyck | cd392f5 | 2011-08-26 07:43:59 +0000 | [diff] [blame] | 1573 | igb_alloc_rx_buffers(ring, igb_desc_unused(ring)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1574 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1575 | } |
| 1576 | |
Nick Nunley | 88a268c | 2010-02-17 01:01:59 +0000 | [diff] [blame] | 1577 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1578 | * igb_power_up_link - Power up the phy/serdes link |
| 1579 | * @adapter: address of board private structure |
Nick Nunley | 88a268c | 2010-02-17 01:01:59 +0000 | [diff] [blame] | 1580 | **/ |
| 1581 | void igb_power_up_link(struct igb_adapter *adapter) |
| 1582 | { |
Akeem G. Abodunrin | 7688659 | 2012-07-17 04:51:18 +0000 | [diff] [blame] | 1583 | igb_reset_phy(&adapter->hw); |
| 1584 | |
Nick Nunley | 88a268c | 2010-02-17 01:01:59 +0000 | [diff] [blame] | 1585 | if (adapter->hw.phy.media_type == e1000_media_type_copper) |
| 1586 | igb_power_up_phy_copper(&adapter->hw); |
| 1587 | else |
| 1588 | igb_power_up_serdes_link_82575(&adapter->hw); |
| 1589 | } |
| 1590 | |
| 1591 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1592 | * igb_power_down_link - Power down the phy/serdes link |
| 1593 | * @adapter: address of board private structure |
Nick Nunley | 88a268c | 2010-02-17 01:01:59 +0000 | [diff] [blame] | 1594 | */ |
| 1595 | static void igb_power_down_link(struct igb_adapter *adapter) |
| 1596 | { |
| 1597 | if (adapter->hw.phy.media_type == e1000_media_type_copper) |
| 1598 | igb_power_down_phy_copper_82575(&adapter->hw); |
| 1599 | else |
| 1600 | igb_shutdown_serdes_link_82575(&adapter->hw); |
| 1601 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1602 | |
| 1603 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1604 | * igb_up - Open the interface and prepare it to handle traffic |
| 1605 | * @adapter: board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1606 | **/ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1607 | int igb_up(struct igb_adapter *adapter) |
| 1608 | { |
| 1609 | struct e1000_hw *hw = &adapter->hw; |
| 1610 | int i; |
| 1611 | |
| 1612 | /* hardware has been reset, we need to reload some things */ |
| 1613 | igb_configure(adapter); |
| 1614 | |
| 1615 | clear_bit(__IGB_DOWN, &adapter->state); |
| 1616 | |
Alexander Duyck | 0d1ae7f | 2011-08-26 07:46:34 +0000 | [diff] [blame] | 1617 | for (i = 0; i < adapter->num_q_vectors; i++) |
| 1618 | napi_enable(&(adapter->q_vector[i]->napi)); |
| 1619 | |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 1620 | if (adapter->msix_entries) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1621 | igb_configure_msix(adapter); |
Alexander Duyck | feeb272 | 2010-02-03 21:59:51 +0000 | [diff] [blame] | 1622 | else |
| 1623 | igb_assign_vector(adapter->q_vector[0], 0); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1624 | |
| 1625 | /* Clear any pending interrupts. */ |
| 1626 | rd32(E1000_ICR); |
| 1627 | igb_irq_enable(adapter); |
| 1628 | |
Alexander Duyck | d496030 | 2009-10-27 15:53:45 +0000 | [diff] [blame] | 1629 | /* notify VFs that reset has been completed */ |
| 1630 | if (adapter->vfs_allocated_count) { |
| 1631 | u32 reg_data = rd32(E1000_CTRL_EXT); |
| 1632 | reg_data |= E1000_CTRL_EXT_PFRSTD; |
| 1633 | wr32(E1000_CTRL_EXT, reg_data); |
| 1634 | } |
| 1635 | |
Jesse Brandeburg | 4cb9be7 | 2009-04-21 18:42:05 +0000 | [diff] [blame] | 1636 | netif_tx_start_all_queues(adapter->netdev); |
| 1637 | |
Alexander Duyck | 25568a5 | 2009-10-27 23:49:59 +0000 | [diff] [blame] | 1638 | /* start the watchdog. */ |
| 1639 | hw->mac.get_link_status = 1; |
| 1640 | schedule_work(&adapter->watchdog_task); |
| 1641 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1642 | return 0; |
| 1643 | } |
| 1644 | |
| 1645 | void igb_down(struct igb_adapter *adapter) |
| 1646 | { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1647 | struct net_device *netdev = adapter->netdev; |
Alexander Duyck | 330a6d6 | 2009-10-27 23:51:35 +0000 | [diff] [blame] | 1648 | struct e1000_hw *hw = &adapter->hw; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1649 | u32 tctl, rctl; |
| 1650 | int i; |
| 1651 | |
| 1652 | /* signal that we're down so the interrupt handler does not |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1653 | * reschedule our watchdog timer |
| 1654 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1655 | set_bit(__IGB_DOWN, &adapter->state); |
| 1656 | |
| 1657 | /* disable receives in the hardware */ |
| 1658 | rctl = rd32(E1000_RCTL); |
| 1659 | wr32(E1000_RCTL, rctl & ~E1000_RCTL_EN); |
| 1660 | /* flush and sleep below */ |
| 1661 | |
David S. Miller | fd2ea0a | 2008-07-17 01:56:23 -0700 | [diff] [blame] | 1662 | netif_tx_stop_all_queues(netdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1663 | |
| 1664 | /* disable transmits in the hardware */ |
| 1665 | tctl = rd32(E1000_TCTL); |
| 1666 | tctl &= ~E1000_TCTL_EN; |
| 1667 | wr32(E1000_TCTL, tctl); |
| 1668 | /* flush both disables and wait for them to finish */ |
| 1669 | wrfl(); |
| 1670 | msleep(10); |
| 1671 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1672 | igb_irq_disable(adapter); |
| 1673 | |
Akeem G Abodunrin | aa9b8cc | 2013-08-28 02:22:43 +0000 | [diff] [blame] | 1674 | adapter->flags &= ~IGB_FLAG_NEED_LINK_UPDATE; |
| 1675 | |
Carolyn Wyborny | 41f149a | 2013-04-30 00:21:32 +0000 | [diff] [blame] | 1676 | for (i = 0; i < adapter->num_q_vectors; i++) { |
| 1677 | napi_synchronize(&(adapter->q_vector[i]->napi)); |
| 1678 | napi_disable(&(adapter->q_vector[i]->napi)); |
| 1679 | } |
| 1680 | |
| 1681 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1682 | del_timer_sync(&adapter->watchdog_timer); |
| 1683 | del_timer_sync(&adapter->phy_info_timer); |
| 1684 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1685 | netif_carrier_off(netdev); |
Alexander Duyck | 04fe635 | 2009-02-06 23:22:32 +0000 | [diff] [blame] | 1686 | |
| 1687 | /* record the stats before reset*/ |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 1688 | spin_lock(&adapter->stats64_lock); |
| 1689 | igb_update_stats(adapter, &adapter->stats64); |
| 1690 | spin_unlock(&adapter->stats64_lock); |
Alexander Duyck | 04fe635 | 2009-02-06 23:22:32 +0000 | [diff] [blame] | 1691 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1692 | adapter->link_speed = 0; |
| 1693 | adapter->link_duplex = 0; |
| 1694 | |
Jeff Kirsher | 3023682 | 2008-06-24 17:01:15 -0700 | [diff] [blame] | 1695 | if (!pci_channel_offline(adapter->pdev)) |
| 1696 | igb_reset(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1697 | igb_clean_all_tx_rings(adapter); |
| 1698 | igb_clean_all_rx_rings(adapter); |
Alexander Duyck | 7e0e99e | 2009-05-21 13:06:56 +0000 | [diff] [blame] | 1699 | #ifdef CONFIG_IGB_DCA |
| 1700 | |
| 1701 | /* since we reset the hardware DCA settings were cleared */ |
| 1702 | igb_setup_dca(adapter); |
| 1703 | #endif |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1704 | } |
| 1705 | |
| 1706 | void igb_reinit_locked(struct igb_adapter *adapter) |
| 1707 | { |
| 1708 | WARN_ON(in_interrupt()); |
| 1709 | while (test_and_set_bit(__IGB_RESETTING, &adapter->state)) |
| 1710 | msleep(1); |
| 1711 | igb_down(adapter); |
| 1712 | igb_up(adapter); |
| 1713 | clear_bit(__IGB_RESETTING, &adapter->state); |
| 1714 | } |
| 1715 | |
| 1716 | void igb_reset(struct igb_adapter *adapter) |
| 1717 | { |
Alexander Duyck | 090b179 | 2009-10-27 23:51:55 +0000 | [diff] [blame] | 1718 | struct pci_dev *pdev = adapter->pdev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1719 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 1720 | struct e1000_mac_info *mac = &hw->mac; |
| 1721 | struct e1000_fc_info *fc = &hw->fc; |
Matthew Vick | d48507f | 2012-11-08 04:03:58 +0000 | [diff] [blame] | 1722 | u32 pba = 0, tx_space, min_tx_space, min_rx_space, hwm; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1723 | |
| 1724 | /* Repartition Pba for greater than 9k mtu |
| 1725 | * To take effect CTRL.RST is required. |
| 1726 | */ |
Alexander Duyck | fa4dfae | 2009-02-06 23:21:31 +0000 | [diff] [blame] | 1727 | switch (mac->type) { |
Alexander Duyck | d2ba2ed | 2010-03-22 14:08:06 +0000 | [diff] [blame] | 1728 | case e1000_i350: |
Carolyn Wyborny | ceb5f13 | 2013-04-18 22:21:30 +0000 | [diff] [blame] | 1729 | case e1000_i354: |
Alexander Duyck | 55cac24 | 2009-11-19 12:42:21 +0000 | [diff] [blame] | 1730 | case e1000_82580: |
| 1731 | pba = rd32(E1000_RXPBS); |
| 1732 | pba = igb_rxpbs_adjust_82580(pba); |
| 1733 | break; |
Alexander Duyck | fa4dfae | 2009-02-06 23:21:31 +0000 | [diff] [blame] | 1734 | case e1000_82576: |
Alexander Duyck | d249be5 | 2009-10-27 23:46:38 +0000 | [diff] [blame] | 1735 | pba = rd32(E1000_RXPBS); |
| 1736 | pba &= E1000_RXPBS_SIZE_MASK_82576; |
Alexander Duyck | fa4dfae | 2009-02-06 23:21:31 +0000 | [diff] [blame] | 1737 | break; |
| 1738 | case e1000_82575: |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 1739 | case e1000_i210: |
| 1740 | case e1000_i211: |
Alexander Duyck | fa4dfae | 2009-02-06 23:21:31 +0000 | [diff] [blame] | 1741 | default: |
| 1742 | pba = E1000_PBA_34K; |
| 1743 | break; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 1744 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1745 | |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 1746 | if ((adapter->max_frame_size > ETH_FRAME_LEN + ETH_FCS_LEN) && |
| 1747 | (mac->type < e1000_82576)) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1748 | /* adjust PBA for jumbo frames */ |
| 1749 | wr32(E1000_PBA, pba); |
| 1750 | |
| 1751 | /* To maintain wire speed transmits, the Tx FIFO should be |
| 1752 | * large enough to accommodate two full transmit packets, |
| 1753 | * rounded up to the next 1KB and expressed in KB. Likewise, |
| 1754 | * the Rx FIFO should be large enough to accommodate at least |
| 1755 | * one full receive packet and is similarly rounded up and |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1756 | * expressed in KB. |
| 1757 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1758 | pba = rd32(E1000_PBA); |
| 1759 | /* upper 16 bits has Tx packet buffer allocation size in KB */ |
| 1760 | tx_space = pba >> 16; |
| 1761 | /* lower 16 bits has Rx packet buffer allocation size in KB */ |
| 1762 | pba &= 0xffff; |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1763 | /* the Tx fifo also stores 16 bytes of information about the Tx |
| 1764 | * but don't include ethernet FCS because hardware appends it |
| 1765 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1766 | min_tx_space = (adapter->max_frame_size + |
Alexander Duyck | 85e8d00 | 2009-02-16 00:00:20 -0800 | [diff] [blame] | 1767 | sizeof(union e1000_adv_tx_desc) - |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1768 | ETH_FCS_LEN) * 2; |
| 1769 | min_tx_space = ALIGN(min_tx_space, 1024); |
| 1770 | min_tx_space >>= 10; |
| 1771 | /* software strips receive CRC, so leave room for it */ |
| 1772 | min_rx_space = adapter->max_frame_size; |
| 1773 | min_rx_space = ALIGN(min_rx_space, 1024); |
| 1774 | min_rx_space >>= 10; |
| 1775 | |
| 1776 | /* If current Tx allocation is less than the min Tx FIFO size, |
| 1777 | * and the min Tx FIFO size is less than the current Rx FIFO |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1778 | * allocation, take space away from current Rx allocation |
| 1779 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1780 | if (tx_space < min_tx_space && |
| 1781 | ((min_tx_space - tx_space) < pba)) { |
| 1782 | pba = pba - (min_tx_space - tx_space); |
| 1783 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1784 | /* if short on Rx space, Rx wins and must trump Tx |
| 1785 | * adjustment |
| 1786 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1787 | if (pba < min_rx_space) |
| 1788 | pba = min_rx_space; |
| 1789 | } |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 1790 | wr32(E1000_PBA, pba); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1791 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1792 | |
| 1793 | /* flow control settings */ |
| 1794 | /* The high water mark must be low enough to fit one full frame |
| 1795 | * (or the size used for early receive) above it in the Rx FIFO. |
| 1796 | * Set it to the lower of: |
| 1797 | * - 90% of the Rx FIFO size, or |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1798 | * - the full Rx FIFO size minus one full frame |
| 1799 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1800 | hwm = min(((pba << 10) * 9 / 10), |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 1801 | ((pba << 10) - 2 * adapter->max_frame_size)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1802 | |
Matthew Vick | d48507f | 2012-11-08 04:03:58 +0000 | [diff] [blame] | 1803 | fc->high_water = hwm & 0xFFFFFFF0; /* 16-byte granularity */ |
Alexander Duyck | d405ea3 | 2009-12-23 13:21:27 +0000 | [diff] [blame] | 1804 | fc->low_water = fc->high_water - 16; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1805 | fc->pause_time = 0xFFFF; |
| 1806 | fc->send_xon = 1; |
Alexander Duyck | 0cce119 | 2009-07-23 18:10:24 +0000 | [diff] [blame] | 1807 | fc->current_mode = fc->requested_mode; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1808 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 1809 | /* disable receive for all VFs and wait one second */ |
| 1810 | if (adapter->vfs_allocated_count) { |
| 1811 | int i; |
| 1812 | for (i = 0 ; i < adapter->vfs_allocated_count; i++) |
Greg Rose | 8fa7e0f | 2010-11-06 05:43:21 +0000 | [diff] [blame] | 1813 | adapter->vf_data[i].flags &= IGB_VF_FLAG_PF_SET_MAC; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 1814 | |
| 1815 | /* ping all the active vfs to let them know we are going down */ |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 1816 | igb_ping_all_vfs(adapter); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 1817 | |
| 1818 | /* disable transmits and receives */ |
| 1819 | wr32(E1000_VFRE, 0); |
| 1820 | wr32(E1000_VFTE, 0); |
| 1821 | } |
| 1822 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1823 | /* Allow time for pending master requests to run */ |
Alexander Duyck | 330a6d6 | 2009-10-27 23:51:35 +0000 | [diff] [blame] | 1824 | hw->mac.ops.reset_hw(hw); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1825 | wr32(E1000_WUC, 0); |
| 1826 | |
Alexander Duyck | 330a6d6 | 2009-10-27 23:51:35 +0000 | [diff] [blame] | 1827 | if (hw->mac.ops.init_hw(hw)) |
Alexander Duyck | 090b179 | 2009-10-27 23:51:55 +0000 | [diff] [blame] | 1828 | dev_err(&pdev->dev, "Hardware Error\n"); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1829 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1830 | /* Flow control settings reset on hardware reset, so guarantee flow |
Matthew Vick | a27416b | 2012-04-18 02:57:44 +0000 | [diff] [blame] | 1831 | * control is off when forcing speed. |
| 1832 | */ |
| 1833 | if (!hw->mac.autoneg) |
| 1834 | igb_force_mac_fc(hw); |
| 1835 | |
Carolyn Wyborny | b6e0c41 | 2011-10-13 17:29:59 +0000 | [diff] [blame] | 1836 | igb_init_dmac(adapter, pba); |
Carolyn Wyborny | e428893 | 2012-12-07 03:01:42 +0000 | [diff] [blame] | 1837 | #ifdef CONFIG_IGB_HWMON |
| 1838 | /* Re-initialize the thermal sensor on i350 devices. */ |
| 1839 | if (!test_bit(__IGB_DOWN, &adapter->state)) { |
| 1840 | if (mac->type == e1000_i350 && hw->bus.func == 0) { |
| 1841 | /* If present, re-initialize the external thermal sensor |
| 1842 | * interface. |
| 1843 | */ |
| 1844 | if (adapter->ets) |
| 1845 | mac->ops.init_thermal_sensor_thresh(hw); |
| 1846 | } |
| 1847 | } |
| 1848 | #endif |
Nick Nunley | 88a268c | 2010-02-17 01:01:59 +0000 | [diff] [blame] | 1849 | if (!netif_running(adapter->netdev)) |
| 1850 | igb_power_down_link(adapter); |
| 1851 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1852 | igb_update_mng_vlan(adapter); |
| 1853 | |
| 1854 | /* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */ |
| 1855 | wr32(E1000_VET, ETHERNET_IEEE_VLAN_TYPE); |
| 1856 | |
Matthew Vick | 1f6e817 | 2012-08-18 07:26:33 +0000 | [diff] [blame] | 1857 | /* Re-enable PTP, where applicable. */ |
| 1858 | igb_ptp_reset(adapter); |
Matthew Vick | 1f6e817 | 2012-08-18 07:26:33 +0000 | [diff] [blame] | 1859 | |
Alexander Duyck | 330a6d6 | 2009-10-27 23:51:35 +0000 | [diff] [blame] | 1860 | igb_get_phy_info(hw); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1861 | } |
| 1862 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 1863 | static netdev_features_t igb_fix_features(struct net_device *netdev, |
| 1864 | netdev_features_t features) |
Jiri Pirko | b2cb09b | 2011-07-21 03:27:27 +0000 | [diff] [blame] | 1865 | { |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1866 | /* Since there is no support for separate Rx/Tx vlan accel |
| 1867 | * enable/disable make sure Tx flag is always in same state as Rx. |
Jiri Pirko | b2cb09b | 2011-07-21 03:27:27 +0000 | [diff] [blame] | 1868 | */ |
Patrick McHardy | f646968 | 2013-04-19 02:04:27 +0000 | [diff] [blame] | 1869 | if (features & NETIF_F_HW_VLAN_CTAG_RX) |
| 1870 | features |= NETIF_F_HW_VLAN_CTAG_TX; |
Jiri Pirko | b2cb09b | 2011-07-21 03:27:27 +0000 | [diff] [blame] | 1871 | else |
Patrick McHardy | f646968 | 2013-04-19 02:04:27 +0000 | [diff] [blame] | 1872 | features &= ~NETIF_F_HW_VLAN_CTAG_TX; |
Jiri Pirko | b2cb09b | 2011-07-21 03:27:27 +0000 | [diff] [blame] | 1873 | |
| 1874 | return features; |
| 1875 | } |
| 1876 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 1877 | static int igb_set_features(struct net_device *netdev, |
| 1878 | netdev_features_t features) |
Michał Mirosław | ac52caa | 2011-06-08 08:38:01 +0000 | [diff] [blame] | 1879 | { |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 1880 | netdev_features_t changed = netdev->features ^ features; |
Ben Greear | 89eaefb | 2012-03-06 09:41:58 +0000 | [diff] [blame] | 1881 | struct igb_adapter *adapter = netdev_priv(netdev); |
Michał Mirosław | ac52caa | 2011-06-08 08:38:01 +0000 | [diff] [blame] | 1882 | |
Patrick McHardy | f646968 | 2013-04-19 02:04:27 +0000 | [diff] [blame] | 1883 | if (changed & NETIF_F_HW_VLAN_CTAG_RX) |
Jiri Pirko | b2cb09b | 2011-07-21 03:27:27 +0000 | [diff] [blame] | 1884 | igb_vlan_mode(netdev, features); |
| 1885 | |
Ben Greear | 89eaefb | 2012-03-06 09:41:58 +0000 | [diff] [blame] | 1886 | if (!(changed & NETIF_F_RXALL)) |
| 1887 | return 0; |
| 1888 | |
| 1889 | netdev->features = features; |
| 1890 | |
| 1891 | if (netif_running(netdev)) |
| 1892 | igb_reinit_locked(adapter); |
| 1893 | else |
| 1894 | igb_reset(adapter); |
| 1895 | |
Michał Mirosław | ac52caa | 2011-06-08 08:38:01 +0000 | [diff] [blame] | 1896 | return 0; |
| 1897 | } |
| 1898 | |
Stephen Hemminger | 2e5c692 | 2008-11-19 22:20:44 -0800 | [diff] [blame] | 1899 | static const struct net_device_ops igb_netdev_ops = { |
Alexander Duyck | 559e9c4 | 2009-10-27 23:52:50 +0000 | [diff] [blame] | 1900 | .ndo_open = igb_open, |
Stephen Hemminger | 2e5c692 | 2008-11-19 22:20:44 -0800 | [diff] [blame] | 1901 | .ndo_stop = igb_close, |
Alexander Duyck | cd392f5 | 2011-08-26 07:43:59 +0000 | [diff] [blame] | 1902 | .ndo_start_xmit = igb_xmit_frame, |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 1903 | .ndo_get_stats64 = igb_get_stats64, |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 1904 | .ndo_set_rx_mode = igb_set_rx_mode, |
Stephen Hemminger | 2e5c692 | 2008-11-19 22:20:44 -0800 | [diff] [blame] | 1905 | .ndo_set_mac_address = igb_set_mac, |
| 1906 | .ndo_change_mtu = igb_change_mtu, |
| 1907 | .ndo_do_ioctl = igb_ioctl, |
| 1908 | .ndo_tx_timeout = igb_tx_timeout, |
| 1909 | .ndo_validate_addr = eth_validate_addr, |
Stephen Hemminger | 2e5c692 | 2008-11-19 22:20:44 -0800 | [diff] [blame] | 1910 | .ndo_vlan_rx_add_vid = igb_vlan_rx_add_vid, |
| 1911 | .ndo_vlan_rx_kill_vid = igb_vlan_rx_kill_vid, |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 1912 | .ndo_set_vf_mac = igb_ndo_set_vf_mac, |
| 1913 | .ndo_set_vf_vlan = igb_ndo_set_vf_vlan, |
| 1914 | .ndo_set_vf_tx_rate = igb_ndo_set_vf_bw, |
Lior Levy | 70ea478 | 2013-03-03 20:27:48 +0000 | [diff] [blame] | 1915 | .ndo_set_vf_spoofchk = igb_ndo_set_vf_spoofchk, |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 1916 | .ndo_get_vf_config = igb_ndo_get_vf_config, |
Stephen Hemminger | 2e5c692 | 2008-11-19 22:20:44 -0800 | [diff] [blame] | 1917 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 1918 | .ndo_poll_controller = igb_netpoll, |
| 1919 | #endif |
Jiri Pirko | b2cb09b | 2011-07-21 03:27:27 +0000 | [diff] [blame] | 1920 | .ndo_fix_features = igb_fix_features, |
| 1921 | .ndo_set_features = igb_set_features, |
Stephen Hemminger | 2e5c692 | 2008-11-19 22:20:44 -0800 | [diff] [blame] | 1922 | }; |
| 1923 | |
Taku Izumi | 42bfd33a | 2008-06-20 12:10:30 +0900 | [diff] [blame] | 1924 | /** |
Carolyn Wyborny | d67974f | 2012-06-14 16:04:19 +0000 | [diff] [blame] | 1925 | * igb_set_fw_version - Configure version string for ethtool |
| 1926 | * @adapter: adapter struct |
Carolyn Wyborny | d67974f | 2012-06-14 16:04:19 +0000 | [diff] [blame] | 1927 | **/ |
| 1928 | void igb_set_fw_version(struct igb_adapter *adapter) |
| 1929 | { |
| 1930 | struct e1000_hw *hw = &adapter->hw; |
Carolyn Wyborny | 0b1a6f2 | 2012-10-18 07:16:19 +0000 | [diff] [blame] | 1931 | struct e1000_fw_version fw; |
Carolyn Wyborny | d67974f | 2012-06-14 16:04:19 +0000 | [diff] [blame] | 1932 | |
Carolyn Wyborny | 0b1a6f2 | 2012-10-18 07:16:19 +0000 | [diff] [blame] | 1933 | igb_get_fw_version(hw, &fw); |
Carolyn Wyborny | d67974f | 2012-06-14 16:04:19 +0000 | [diff] [blame] | 1934 | |
Carolyn Wyborny | 0b1a6f2 | 2012-10-18 07:16:19 +0000 | [diff] [blame] | 1935 | switch (hw->mac.type) { |
Carolyn Wyborny | 7dc98a6 | 2013-07-16 19:25:33 +0000 | [diff] [blame] | 1936 | case e1000_i210: |
Carolyn Wyborny | 0b1a6f2 | 2012-10-18 07:16:19 +0000 | [diff] [blame] | 1937 | case e1000_i211: |
Carolyn Wyborny | 7dc98a6 | 2013-07-16 19:25:33 +0000 | [diff] [blame] | 1938 | if (!(igb_get_flash_presence_i210(hw))) { |
| 1939 | snprintf(adapter->fw_version, |
| 1940 | sizeof(adapter->fw_version), |
| 1941 | "%2d.%2d-%d", |
| 1942 | fw.invm_major, fw.invm_minor, |
| 1943 | fw.invm_img_type); |
| 1944 | break; |
| 1945 | } |
| 1946 | /* fall through */ |
Carolyn Wyborny | 0b1a6f2 | 2012-10-18 07:16:19 +0000 | [diff] [blame] | 1947 | default: |
| 1948 | /* if option is rom valid, display its version too */ |
| 1949 | if (fw.or_valid) { |
| 1950 | snprintf(adapter->fw_version, |
| 1951 | sizeof(adapter->fw_version), |
| 1952 | "%d.%d, 0x%08x, %d.%d.%d", |
| 1953 | fw.eep_major, fw.eep_minor, fw.etrack_id, |
| 1954 | fw.or_major, fw.or_build, fw.or_patch); |
| 1955 | /* no option rom */ |
Carolyn Wyborny | 7dc98a6 | 2013-07-16 19:25:33 +0000 | [diff] [blame] | 1956 | } else if (fw.etrack_id != 0X0000) { |
Carolyn Wyborny | 0b1a6f2 | 2012-10-18 07:16:19 +0000 | [diff] [blame] | 1957 | snprintf(adapter->fw_version, |
Carolyn Wyborny | 7dc98a6 | 2013-07-16 19:25:33 +0000 | [diff] [blame] | 1958 | sizeof(adapter->fw_version), |
| 1959 | "%d.%d, 0x%08x", |
| 1960 | fw.eep_major, fw.eep_minor, fw.etrack_id); |
| 1961 | } else { |
| 1962 | snprintf(adapter->fw_version, |
| 1963 | sizeof(adapter->fw_version), |
| 1964 | "%d.%d.%d", |
| 1965 | fw.eep_major, fw.eep_minor, fw.eep_build); |
Carolyn Wyborny | d67974f | 2012-06-14 16:04:19 +0000 | [diff] [blame] | 1966 | } |
Carolyn Wyborny | 0b1a6f2 | 2012-10-18 07:16:19 +0000 | [diff] [blame] | 1967 | break; |
Carolyn Wyborny | d67974f | 2012-06-14 16:04:19 +0000 | [diff] [blame] | 1968 | } |
Carolyn Wyborny | d67974f | 2012-06-14 16:04:19 +0000 | [diff] [blame] | 1969 | return; |
| 1970 | } |
| 1971 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1972 | /** |
| 1973 | * igb_init_i2c - Init I2C interface |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 1974 | * @adapter: pointer to adapter structure |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 1975 | **/ |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 1976 | static s32 igb_init_i2c(struct igb_adapter *adapter) |
| 1977 | { |
| 1978 | s32 status = E1000_SUCCESS; |
| 1979 | |
| 1980 | /* I2C interface supported on i350 devices */ |
| 1981 | if (adapter->hw.mac.type != e1000_i350) |
| 1982 | return E1000_SUCCESS; |
| 1983 | |
| 1984 | /* Initialize the i2c bus which is controlled by the registers. |
| 1985 | * This bus will use the i2c_algo_bit structue that implements |
| 1986 | * the protocol through toggling of the 4 bits in the register. |
| 1987 | */ |
| 1988 | adapter->i2c_adap.owner = THIS_MODULE; |
| 1989 | adapter->i2c_algo = igb_i2c_algo; |
| 1990 | adapter->i2c_algo.data = adapter; |
| 1991 | adapter->i2c_adap.algo_data = &adapter->i2c_algo; |
| 1992 | adapter->i2c_adap.dev.parent = &adapter->pdev->dev; |
| 1993 | strlcpy(adapter->i2c_adap.name, "igb BB", |
| 1994 | sizeof(adapter->i2c_adap.name)); |
| 1995 | status = i2c_bit_add_bus(&adapter->i2c_adap); |
| 1996 | return status; |
| 1997 | } |
| 1998 | |
Carolyn Wyborny | d67974f | 2012-06-14 16:04:19 +0000 | [diff] [blame] | 1999 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2000 | * igb_probe - Device Initialization Routine |
| 2001 | * @pdev: PCI device information struct |
| 2002 | * @ent: entry in igb_pci_tbl |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2003 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2004 | * Returns 0 on success, negative on failure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2005 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2006 | * igb_probe initializes an adapter identified by a pci_dev structure. |
| 2007 | * The OS initialization, configuring of the adapter private structure, |
| 2008 | * and a hardware reset occur. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2009 | **/ |
Greg Kroah-Hartman | 1dd06ae | 2012-12-06 14:30:56 +0000 | [diff] [blame] | 2010 | static int igb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2011 | { |
| 2012 | struct net_device *netdev; |
| 2013 | struct igb_adapter *adapter; |
| 2014 | struct e1000_hw *hw; |
Alexander Duyck | 4337e99 | 2009-10-27 23:48:31 +0000 | [diff] [blame] | 2015 | u16 eeprom_data = 0; |
Carolyn Wyborny | 9835fd7 | 2010-11-22 17:17:21 +0000 | [diff] [blame] | 2016 | s32 ret_val; |
Alexander Duyck | 4337e99 | 2009-10-27 23:48:31 +0000 | [diff] [blame] | 2017 | static int global_quad_port_a; /* global quad port a indication */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2018 | const struct e1000_info *ei = igb_info_tbl[ent->driver_data]; |
| 2019 | unsigned long mmio_start, mmio_len; |
David S. Miller | 2d6a5e9 | 2009-03-17 15:01:30 -0700 | [diff] [blame] | 2020 | int err, pci_using_dac; |
Carolyn Wyborny | 9835fd7 | 2010-11-22 17:17:21 +0000 | [diff] [blame] | 2021 | u8 part_str[E1000_PBANUM_LENGTH]; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2022 | |
Andy Gospodarek | bded64a | 2010-07-21 06:40:31 +0000 | [diff] [blame] | 2023 | /* Catch broken hardware that put the wrong VF device ID in |
| 2024 | * the PCIe SR-IOV capability. |
| 2025 | */ |
| 2026 | if (pdev->is_virtfn) { |
| 2027 | WARN(1, KERN_ERR "%s (%hx:%hx) should not be a VF!\n", |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 2028 | pci_name(pdev), pdev->vendor, pdev->device); |
Andy Gospodarek | bded64a | 2010-07-21 06:40:31 +0000 | [diff] [blame] | 2029 | return -EINVAL; |
| 2030 | } |
| 2031 | |
Alexander Duyck | aed5dec | 2009-02-06 23:16:04 +0000 | [diff] [blame] | 2032 | err = pci_enable_device_mem(pdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2033 | if (err) |
| 2034 | return err; |
| 2035 | |
| 2036 | pci_using_dac = 0; |
Russell King | dc4ff9b | 2013-06-10 12:24:50 +0100 | [diff] [blame^] | 2037 | err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2038 | if (!err) { |
Russell King | dc4ff9b | 2013-06-10 12:24:50 +0100 | [diff] [blame^] | 2039 | pci_using_dac = 1; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2040 | } else { |
Russell King | dc4ff9b | 2013-06-10 12:24:50 +0100 | [diff] [blame^] | 2041 | err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2042 | if (err) { |
Russell King | dc4ff9b | 2013-06-10 12:24:50 +0100 | [diff] [blame^] | 2043 | dev_err(&pdev->dev, |
| 2044 | "No usable DMA configuration, aborting\n"); |
| 2045 | goto err_dma; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2046 | } |
| 2047 | } |
| 2048 | |
Alexander Duyck | aed5dec | 2009-02-06 23:16:04 +0000 | [diff] [blame] | 2049 | err = pci_request_selected_regions(pdev, pci_select_bars(pdev, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2050 | IORESOURCE_MEM), |
| 2051 | igb_driver_name); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2052 | if (err) |
| 2053 | goto err_pci_reg; |
| 2054 | |
Frans Pop | 19d5afd | 2009-10-02 10:04:12 -0700 | [diff] [blame] | 2055 | pci_enable_pcie_error_reporting(pdev); |
Alexander Duyck | 40a914f | 2008-11-27 00:24:37 -0800 | [diff] [blame] | 2056 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2057 | pci_set_master(pdev); |
Auke Kok | c682fc2 | 2008-04-23 11:09:34 -0700 | [diff] [blame] | 2058 | pci_save_state(pdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2059 | |
| 2060 | err = -ENOMEM; |
Alexander Duyck | 1bfaf07 | 2009-02-19 20:39:23 -0800 | [diff] [blame] | 2061 | netdev = alloc_etherdev_mq(sizeof(struct igb_adapter), |
Alexander Duyck | 1cc3bd8 | 2011-08-26 07:44:10 +0000 | [diff] [blame] | 2062 | IGB_MAX_TX_QUEUES); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2063 | if (!netdev) |
| 2064 | goto err_alloc_etherdev; |
| 2065 | |
| 2066 | SET_NETDEV_DEV(netdev, &pdev->dev); |
| 2067 | |
| 2068 | pci_set_drvdata(pdev, netdev); |
| 2069 | adapter = netdev_priv(netdev); |
| 2070 | adapter->netdev = netdev; |
| 2071 | adapter->pdev = pdev; |
| 2072 | hw = &adapter->hw; |
| 2073 | hw->back = adapter; |
stephen hemminger | b3f4d59 | 2012-03-13 06:04:20 +0000 | [diff] [blame] | 2074 | adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2075 | |
| 2076 | mmio_start = pci_resource_start(pdev, 0); |
| 2077 | mmio_len = pci_resource_len(pdev, 0); |
| 2078 | |
| 2079 | err = -EIO; |
Alexander Duyck | 28b0759 | 2009-02-06 23:20:31 +0000 | [diff] [blame] | 2080 | hw->hw_addr = ioremap(mmio_start, mmio_len); |
| 2081 | if (!hw->hw_addr) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2082 | goto err_ioremap; |
| 2083 | |
Stephen Hemminger | 2e5c692 | 2008-11-19 22:20:44 -0800 | [diff] [blame] | 2084 | netdev->netdev_ops = &igb_netdev_ops; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2085 | igb_set_ethtool_ops(netdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2086 | netdev->watchdog_timeo = 5 * HZ; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2087 | |
| 2088 | strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); |
| 2089 | |
| 2090 | netdev->mem_start = mmio_start; |
| 2091 | netdev->mem_end = mmio_start + mmio_len; |
| 2092 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2093 | /* PCI config space info */ |
| 2094 | hw->vendor_id = pdev->vendor; |
| 2095 | hw->device_id = pdev->device; |
| 2096 | hw->revision_id = pdev->revision; |
| 2097 | hw->subsystem_vendor_id = pdev->subsystem_vendor; |
| 2098 | hw->subsystem_device_id = pdev->subsystem_device; |
| 2099 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2100 | /* Copy the default MAC, PHY and NVM function pointers */ |
| 2101 | memcpy(&hw->mac.ops, ei->mac_ops, sizeof(hw->mac.ops)); |
| 2102 | memcpy(&hw->phy.ops, ei->phy_ops, sizeof(hw->phy.ops)); |
| 2103 | memcpy(&hw->nvm.ops, ei->nvm_ops, sizeof(hw->nvm.ops)); |
| 2104 | /* Initialize skew-specific constants */ |
| 2105 | err = ei->get_invariants(hw); |
| 2106 | if (err) |
Alexander Duyck | 450c87c | 2009-02-06 23:22:11 +0000 | [diff] [blame] | 2107 | goto err_sw_init; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2108 | |
Alexander Duyck | 450c87c | 2009-02-06 23:22:11 +0000 | [diff] [blame] | 2109 | /* setup the private structure */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2110 | err = igb_sw_init(adapter); |
| 2111 | if (err) |
| 2112 | goto err_sw_init; |
| 2113 | |
| 2114 | igb_get_bus_info_pcie(hw); |
| 2115 | |
| 2116 | hw->phy.autoneg_wait_to_complete = false; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2117 | |
| 2118 | /* Copper options */ |
| 2119 | if (hw->phy.media_type == e1000_media_type_copper) { |
| 2120 | hw->phy.mdix = AUTO_ALL_MODES; |
| 2121 | hw->phy.disable_polarity_correction = false; |
| 2122 | hw->phy.ms_type = e1000_ms_hw_default; |
| 2123 | } |
| 2124 | |
| 2125 | if (igb_check_reset_block(hw)) |
| 2126 | dev_info(&pdev->dev, |
| 2127 | "PHY reset is blocked due to SOL/IDER session.\n"); |
| 2128 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2129 | /* features is initialized to 0 in allocation, it might have bits |
Alexander Duyck | 077887c | 2011-08-26 07:46:29 +0000 | [diff] [blame] | 2130 | * set by igb_sw_init so we should use an or instead of an |
| 2131 | * assignment. |
| 2132 | */ |
| 2133 | netdev->features |= NETIF_F_SG | |
| 2134 | NETIF_F_IP_CSUM | |
| 2135 | NETIF_F_IPV6_CSUM | |
| 2136 | NETIF_F_TSO | |
| 2137 | NETIF_F_TSO6 | |
| 2138 | NETIF_F_RXHASH | |
| 2139 | NETIF_F_RXCSUM | |
Patrick McHardy | f646968 | 2013-04-19 02:04:27 +0000 | [diff] [blame] | 2140 | NETIF_F_HW_VLAN_CTAG_RX | |
| 2141 | NETIF_F_HW_VLAN_CTAG_TX; |
Michał Mirosław | ac52caa | 2011-06-08 08:38:01 +0000 | [diff] [blame] | 2142 | |
Alexander Duyck | 077887c | 2011-08-26 07:46:29 +0000 | [diff] [blame] | 2143 | /* copy netdev features into list of user selectable features */ |
| 2144 | netdev->hw_features |= netdev->features; |
Ben Greear | 89eaefb | 2012-03-06 09:41:58 +0000 | [diff] [blame] | 2145 | netdev->hw_features |= NETIF_F_RXALL; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2146 | |
Alexander Duyck | 077887c | 2011-08-26 07:46:29 +0000 | [diff] [blame] | 2147 | /* set this bit last since it cannot be part of hw_features */ |
Patrick McHardy | f646968 | 2013-04-19 02:04:27 +0000 | [diff] [blame] | 2148 | netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; |
Alexander Duyck | 077887c | 2011-08-26 07:46:29 +0000 | [diff] [blame] | 2149 | |
| 2150 | netdev->vlan_features |= NETIF_F_TSO | |
| 2151 | NETIF_F_TSO6 | |
| 2152 | NETIF_F_IP_CSUM | |
| 2153 | NETIF_F_IPV6_CSUM | |
| 2154 | NETIF_F_SG; |
Jeff Kirsher | 48f29ff | 2008-06-05 04:06:27 -0700 | [diff] [blame] | 2155 | |
Ben Greear | 6b8f092 | 2012-03-06 09:41:53 +0000 | [diff] [blame] | 2156 | netdev->priv_flags |= IFF_SUPP_NOFCS; |
| 2157 | |
Yi Zou | 7b872a5 | 2010-09-22 17:57:58 +0000 | [diff] [blame] | 2158 | if (pci_using_dac) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2159 | netdev->features |= NETIF_F_HIGHDMA; |
Yi Zou | 7b872a5 | 2010-09-22 17:57:58 +0000 | [diff] [blame] | 2160 | netdev->vlan_features |= NETIF_F_HIGHDMA; |
| 2161 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2162 | |
Michał Mirosław | ac52caa | 2011-06-08 08:38:01 +0000 | [diff] [blame] | 2163 | if (hw->mac.type >= e1000_82576) { |
| 2164 | netdev->hw_features |= NETIF_F_SCTP_CSUM; |
Jesse Brandeburg | b947356 | 2009-04-27 22:36:13 +0000 | [diff] [blame] | 2165 | netdev->features |= NETIF_F_SCTP_CSUM; |
Michał Mirosław | ac52caa | 2011-06-08 08:38:01 +0000 | [diff] [blame] | 2166 | } |
Jesse Brandeburg | b947356 | 2009-04-27 22:36:13 +0000 | [diff] [blame] | 2167 | |
Jiri Pirko | 0178934 | 2011-08-16 06:29:00 +0000 | [diff] [blame] | 2168 | netdev->priv_flags |= IFF_UNICAST_FLT; |
| 2169 | |
Alexander Duyck | 330a6d6 | 2009-10-27 23:51:35 +0000 | [diff] [blame] | 2170 | adapter->en_mng_pt = igb_enable_mng_pass_thru(hw); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2171 | |
| 2172 | /* before reading the NVM, reset the controller to put the device in a |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2173 | * known good starting state |
| 2174 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2175 | hw->mac.ops.reset_hw(hw); |
| 2176 | |
Carolyn Wyborny | ef3a009 | 2013-07-17 19:02:53 +0000 | [diff] [blame] | 2177 | /* make sure the NVM is good , i211/i210 parts can have special NVM |
| 2178 | * that doesn't contain a checksum |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 2179 | */ |
Carolyn Wyborny | ef3a009 | 2013-07-17 19:02:53 +0000 | [diff] [blame] | 2180 | switch (hw->mac.type) { |
| 2181 | case e1000_i210: |
| 2182 | case e1000_i211: |
| 2183 | if (igb_get_flash_presence_i210(hw)) { |
| 2184 | if (hw->nvm.ops.validate(hw) < 0) { |
| 2185 | dev_err(&pdev->dev, |
| 2186 | "The NVM Checksum Is Not Valid\n"); |
| 2187 | err = -EIO; |
| 2188 | goto err_eeprom; |
| 2189 | } |
| 2190 | } |
| 2191 | break; |
| 2192 | default: |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 2193 | if (hw->nvm.ops.validate(hw) < 0) { |
| 2194 | dev_err(&pdev->dev, "The NVM Checksum Is Not Valid\n"); |
| 2195 | err = -EIO; |
| 2196 | goto err_eeprom; |
| 2197 | } |
Carolyn Wyborny | ef3a009 | 2013-07-17 19:02:53 +0000 | [diff] [blame] | 2198 | break; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2199 | } |
| 2200 | |
| 2201 | /* copy the MAC address out of the NVM */ |
| 2202 | if (hw->mac.ops.read_mac_addr(hw)) |
| 2203 | dev_err(&pdev->dev, "NVM Read Error\n"); |
| 2204 | |
| 2205 | memcpy(netdev->dev_addr, hw->mac.addr, netdev->addr_len); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2206 | |
Jiri Pirko | aaeb6cd | 2013-01-08 01:38:26 +0000 | [diff] [blame] | 2207 | if (!is_valid_ether_addr(netdev->dev_addr)) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2208 | dev_err(&pdev->dev, "Invalid MAC Address\n"); |
| 2209 | err = -EIO; |
| 2210 | goto err_eeprom; |
| 2211 | } |
| 2212 | |
Carolyn Wyborny | d67974f | 2012-06-14 16:04:19 +0000 | [diff] [blame] | 2213 | /* get firmware version for ethtool -i */ |
| 2214 | igb_set_fw_version(adapter); |
| 2215 | |
Joe Perches | c061b18 | 2010-08-23 18:20:03 +0000 | [diff] [blame] | 2216 | setup_timer(&adapter->watchdog_timer, igb_watchdog, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2217 | (unsigned long) adapter); |
Joe Perches | c061b18 | 2010-08-23 18:20:03 +0000 | [diff] [blame] | 2218 | setup_timer(&adapter->phy_info_timer, igb_update_phy_info, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2219 | (unsigned long) adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2220 | |
| 2221 | INIT_WORK(&adapter->reset_task, igb_reset_task); |
| 2222 | INIT_WORK(&adapter->watchdog_task, igb_watchdog_task); |
| 2223 | |
Alexander Duyck | 450c87c | 2009-02-06 23:22:11 +0000 | [diff] [blame] | 2224 | /* Initialize link properties that are user-changeable */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2225 | adapter->fc_autoneg = true; |
| 2226 | hw->mac.autoneg = true; |
| 2227 | hw->phy.autoneg_advertised = 0x2f; |
| 2228 | |
Alexander Duyck | 0cce119 | 2009-07-23 18:10:24 +0000 | [diff] [blame] | 2229 | hw->fc.requested_mode = e1000_fc_default; |
| 2230 | hw->fc.current_mode = e1000_fc_default; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2231 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2232 | igb_validate_mdi_setting(hw); |
| 2233 | |
Matthew Vick | 63d4a8f | 2012-11-09 05:49:54 +0000 | [diff] [blame] | 2234 | /* By default, support wake on port A */ |
Alexander Duyck | a2cf8b6 | 2009-03-13 20:41:17 +0000 | [diff] [blame] | 2235 | if (hw->bus.func == 0) |
Matthew Vick | 63d4a8f | 2012-11-09 05:49:54 +0000 | [diff] [blame] | 2236 | adapter->flags |= IGB_FLAG_WOL_SUPPORTED; |
| 2237 | |
| 2238 | /* Check the NVM for wake support on non-port A ports */ |
| 2239 | if (hw->mac.type >= e1000_82580) |
Alexander Duyck | 55cac24 | 2009-11-19 12:42:21 +0000 | [diff] [blame] | 2240 | hw->nvm.ops.read(hw, NVM_INIT_CONTROL3_PORT_A + |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2241 | NVM_82580_LAN_FUNC_OFFSET(hw->bus.func), 1, |
| 2242 | &eeprom_data); |
Alexander Duyck | a2cf8b6 | 2009-03-13 20:41:17 +0000 | [diff] [blame] | 2243 | else if (hw->bus.func == 1) |
| 2244 | hw->nvm.ops.read(hw, NVM_INIT_CONTROL3_PORT_B, 1, &eeprom_data); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2245 | |
Matthew Vick | 63d4a8f | 2012-11-09 05:49:54 +0000 | [diff] [blame] | 2246 | if (eeprom_data & IGB_EEPROM_APME) |
| 2247 | adapter->flags |= IGB_FLAG_WOL_SUPPORTED; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2248 | |
| 2249 | /* now that we have the eeprom settings, apply the special cases where |
| 2250 | * the eeprom may be wrong or the board simply won't support wake on |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2251 | * lan on a particular port |
| 2252 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2253 | switch (pdev->device) { |
| 2254 | case E1000_DEV_ID_82575GB_QUAD_COPPER: |
Matthew Vick | 63d4a8f | 2012-11-09 05:49:54 +0000 | [diff] [blame] | 2255 | adapter->flags &= ~IGB_FLAG_WOL_SUPPORTED; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2256 | break; |
| 2257 | case E1000_DEV_ID_82575EB_FIBER_SERDES: |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 2258 | case E1000_DEV_ID_82576_FIBER: |
| 2259 | case E1000_DEV_ID_82576_SERDES: |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2260 | /* Wake events only supported on port A for dual fiber |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2261 | * regardless of eeprom setting |
| 2262 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2263 | if (rd32(E1000_STATUS) & E1000_STATUS_FUNC_1) |
Matthew Vick | 63d4a8f | 2012-11-09 05:49:54 +0000 | [diff] [blame] | 2264 | adapter->flags &= ~IGB_FLAG_WOL_SUPPORTED; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2265 | break; |
Alexander Duyck | c8ea5ea | 2009-03-13 20:42:35 +0000 | [diff] [blame] | 2266 | case E1000_DEV_ID_82576_QUAD_COPPER: |
Stefan Assmann | d5aa225 | 2010-04-09 09:51:34 +0000 | [diff] [blame] | 2267 | case E1000_DEV_ID_82576_QUAD_COPPER_ET2: |
Alexander Duyck | c8ea5ea | 2009-03-13 20:42:35 +0000 | [diff] [blame] | 2268 | /* if quad port adapter, disable WoL on all but port A */ |
| 2269 | if (global_quad_port_a != 0) |
Matthew Vick | 63d4a8f | 2012-11-09 05:49:54 +0000 | [diff] [blame] | 2270 | adapter->flags &= ~IGB_FLAG_WOL_SUPPORTED; |
Alexander Duyck | c8ea5ea | 2009-03-13 20:42:35 +0000 | [diff] [blame] | 2271 | else |
| 2272 | adapter->flags |= IGB_FLAG_QUAD_PORT_A; |
| 2273 | /* Reset for multiple quad port adapters */ |
| 2274 | if (++global_quad_port_a == 4) |
| 2275 | global_quad_port_a = 0; |
| 2276 | break; |
Matthew Vick | 63d4a8f | 2012-11-09 05:49:54 +0000 | [diff] [blame] | 2277 | default: |
| 2278 | /* If the device can't wake, don't set software support */ |
| 2279 | if (!device_can_wakeup(&adapter->pdev->dev)) |
| 2280 | adapter->flags &= ~IGB_FLAG_WOL_SUPPORTED; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2281 | } |
| 2282 | |
| 2283 | /* initialize the wol settings based on the eeprom settings */ |
Matthew Vick | 63d4a8f | 2012-11-09 05:49:54 +0000 | [diff] [blame] | 2284 | if (adapter->flags & IGB_FLAG_WOL_SUPPORTED) |
| 2285 | adapter->wol |= E1000_WUFC_MAG; |
| 2286 | |
| 2287 | /* Some vendors want WoL disabled by default, but still supported */ |
| 2288 | if ((hw->mac.type == e1000_i350) && |
| 2289 | (pdev->subsystem_vendor == PCI_VENDOR_ID_HP)) { |
| 2290 | adapter->flags |= IGB_FLAG_WOL_SUPPORTED; |
| 2291 | adapter->wol = 0; |
| 2292 | } |
| 2293 | |
| 2294 | device_set_wakeup_enable(&adapter->pdev->dev, |
| 2295 | adapter->flags & IGB_FLAG_WOL_SUPPORTED); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2296 | |
| 2297 | /* reset the hardware with the new settings */ |
| 2298 | igb_reset(adapter); |
| 2299 | |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 2300 | /* Init the I2C interface */ |
| 2301 | err = igb_init_i2c(adapter); |
| 2302 | if (err) { |
| 2303 | dev_err(&pdev->dev, "failed to init i2c interface\n"); |
| 2304 | goto err_eeprom; |
| 2305 | } |
| 2306 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2307 | /* let the f/w know that the h/w is now under the control of the |
| 2308 | * driver. */ |
| 2309 | igb_get_hw_control(adapter); |
| 2310 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2311 | strcpy(netdev->name, "eth%d"); |
| 2312 | err = register_netdev(netdev); |
| 2313 | if (err) |
| 2314 | goto err_register; |
| 2315 | |
Jesse Brandeburg | b168dfc | 2009-04-17 20:44:32 +0000 | [diff] [blame] | 2316 | /* carrier off reporting is important to ethtool even BEFORE open */ |
| 2317 | netif_carrier_off(netdev); |
| 2318 | |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 2319 | #ifdef CONFIG_IGB_DCA |
Alexander Duyck | bbd98fe | 2009-01-31 00:52:30 -0800 | [diff] [blame] | 2320 | if (dca_add_requester(&pdev->dev) == 0) { |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 2321 | adapter->flags |= IGB_FLAG_DCA_ENABLED; |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 2322 | dev_info(&pdev->dev, "DCA enabled\n"); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 2323 | igb_setup_dca(adapter); |
| 2324 | } |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 2325 | |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 2326 | #endif |
Carolyn Wyborny | e428893 | 2012-12-07 03:01:42 +0000 | [diff] [blame] | 2327 | #ifdef CONFIG_IGB_HWMON |
| 2328 | /* Initialize the thermal sensor on i350 devices. */ |
| 2329 | if (hw->mac.type == e1000_i350 && hw->bus.func == 0) { |
| 2330 | u16 ets_word; |
Matthew Vick | 3c89f6d | 2012-08-10 05:40:43 +0000 | [diff] [blame] | 2331 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2332 | /* Read the NVM to determine if this i350 device supports an |
Carolyn Wyborny | e428893 | 2012-12-07 03:01:42 +0000 | [diff] [blame] | 2333 | * external thermal sensor. |
| 2334 | */ |
| 2335 | hw->nvm.ops.read(hw, NVM_ETS_CFG, 1, &ets_word); |
| 2336 | if (ets_word != 0x0000 && ets_word != 0xFFFF) |
| 2337 | adapter->ets = true; |
| 2338 | else |
| 2339 | adapter->ets = false; |
| 2340 | if (igb_sysfs_init(adapter)) |
| 2341 | dev_err(&pdev->dev, |
| 2342 | "failed to allocate sysfs resources\n"); |
| 2343 | } else { |
| 2344 | adapter->ets = false; |
| 2345 | } |
| 2346 | #endif |
Anders Berggren | 673b8b7 | 2011-02-04 07:32:32 +0000 | [diff] [blame] | 2347 | /* do hw tstamp init after resetting */ |
Richard Cochran | 7ebae81 | 2012-03-16 10:55:37 +0000 | [diff] [blame] | 2348 | igb_ptp_init(adapter); |
Anders Berggren | 673b8b7 | 2011-02-04 07:32:32 +0000 | [diff] [blame] | 2349 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2350 | dev_info(&pdev->dev, "Intel(R) Gigabit Ethernet Network Connection\n"); |
Carolyn Wyborny | ceb5f13 | 2013-04-18 22:21:30 +0000 | [diff] [blame] | 2351 | /* print bus type/speed/width info, not applicable to i354 */ |
| 2352 | if (hw->mac.type != e1000_i354) { |
| 2353 | dev_info(&pdev->dev, "%s: (PCIe:%s:%s) %pM\n", |
| 2354 | netdev->name, |
| 2355 | ((hw->bus.speed == e1000_bus_speed_2500) ? "2.5Gb/s" : |
| 2356 | (hw->bus.speed == e1000_bus_speed_5000) ? "5.0Gb/s" : |
| 2357 | "unknown"), |
| 2358 | ((hw->bus.width == e1000_bus_width_pcie_x4) ? |
| 2359 | "Width x4" : |
| 2360 | (hw->bus.width == e1000_bus_width_pcie_x2) ? |
| 2361 | "Width x2" : |
| 2362 | (hw->bus.width == e1000_bus_width_pcie_x1) ? |
| 2363 | "Width x1" : "unknown"), netdev->dev_addr); |
| 2364 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2365 | |
Todd Fujinaka | 53ea6c7 | 2013-08-23 07:49:00 +0000 | [diff] [blame] | 2366 | if ((hw->mac.type >= e1000_i210 || |
| 2367 | igb_get_flash_presence_i210(hw))) { |
| 2368 | ret_val = igb_read_part_string(hw, part_str, |
| 2369 | E1000_PBANUM_LENGTH); |
| 2370 | } else { |
| 2371 | ret_val = -E1000_ERR_INVM_VALUE_NOT_FOUND; |
| 2372 | } |
| 2373 | |
Carolyn Wyborny | 9835fd7 | 2010-11-22 17:17:21 +0000 | [diff] [blame] | 2374 | if (ret_val) |
| 2375 | strcpy(part_str, "Unknown"); |
| 2376 | dev_info(&pdev->dev, "%s: PBA No: %s\n", netdev->name, part_str); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2377 | dev_info(&pdev->dev, |
| 2378 | "Using %s interrupts. %d rx queue(s), %d tx queue(s)\n", |
| 2379 | adapter->msix_entries ? "MSI-X" : |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 2380 | (adapter->flags & IGB_FLAG_HAS_MSI) ? "MSI" : "legacy", |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2381 | adapter->num_rx_queues, adapter->num_tx_queues); |
Carolyn Wyborny | 09b068d | 2011-03-11 20:42:13 -0800 | [diff] [blame] | 2382 | switch (hw->mac.type) { |
| 2383 | case e1000_i350: |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 2384 | case e1000_i210: |
| 2385 | case e1000_i211: |
Carolyn Wyborny | 09b068d | 2011-03-11 20:42:13 -0800 | [diff] [blame] | 2386 | igb_set_eee_i350(hw); |
| 2387 | break; |
Carolyn Wyborny | ceb5f13 | 2013-04-18 22:21:30 +0000 | [diff] [blame] | 2388 | case e1000_i354: |
| 2389 | if (hw->phy.media_type == e1000_media_type_copper) { |
| 2390 | if ((rd32(E1000_CTRL_EXT) & |
| 2391 | E1000_CTRL_EXT_LINK_MODE_SGMII)) |
| 2392 | igb_set_eee_i354(hw); |
| 2393 | } |
| 2394 | break; |
Carolyn Wyborny | 09b068d | 2011-03-11 20:42:13 -0800 | [diff] [blame] | 2395 | default: |
| 2396 | break; |
| 2397 | } |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 2398 | |
| 2399 | pm_runtime_put_noidle(&pdev->dev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2400 | return 0; |
| 2401 | |
| 2402 | err_register: |
| 2403 | igb_release_hw_control(adapter); |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 2404 | memset(&adapter->i2c_adap, 0, sizeof(adapter->i2c_adap)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2405 | err_eeprom: |
| 2406 | if (!igb_check_reset_block(hw)) |
Alexander Duyck | f5f4cf0 | 2008-11-21 21:30:24 -0800 | [diff] [blame] | 2407 | igb_reset_phy(hw); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2408 | |
| 2409 | if (hw->flash_address) |
| 2410 | iounmap(hw->flash_address); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2411 | err_sw_init: |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 2412 | igb_clear_interrupt_scheme(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2413 | iounmap(hw->hw_addr); |
| 2414 | err_ioremap: |
| 2415 | free_netdev(netdev); |
| 2416 | err_alloc_etherdev: |
Alexander Duyck | 559e9c4 | 2009-10-27 23:52:50 +0000 | [diff] [blame] | 2417 | pci_release_selected_regions(pdev, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2418 | pci_select_bars(pdev, IORESOURCE_MEM)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2419 | err_pci_reg: |
| 2420 | err_dma: |
| 2421 | pci_disable_device(pdev); |
| 2422 | return err; |
| 2423 | } |
| 2424 | |
Greg Rose | fa44f2f | 2013-01-17 01:03:06 -0800 | [diff] [blame] | 2425 | #ifdef CONFIG_PCI_IOV |
| 2426 | static int igb_disable_sriov(struct pci_dev *pdev) |
| 2427 | { |
| 2428 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 2429 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 2430 | struct e1000_hw *hw = &adapter->hw; |
| 2431 | |
| 2432 | /* reclaim resources allocated to VFs */ |
| 2433 | if (adapter->vf_data) { |
| 2434 | /* disable iov and allow time for transactions to clear */ |
Alexander Duyck | b09186d | 2013-03-26 00:03:26 +0000 | [diff] [blame] | 2435 | if (pci_vfs_assigned(pdev)) { |
Greg Rose | fa44f2f | 2013-01-17 01:03:06 -0800 | [diff] [blame] | 2436 | dev_warn(&pdev->dev, |
| 2437 | "Cannot deallocate SR-IOV virtual functions while they are assigned - VFs will not be deallocated\n"); |
| 2438 | return -EPERM; |
| 2439 | } else { |
| 2440 | pci_disable_sriov(pdev); |
| 2441 | msleep(500); |
| 2442 | } |
| 2443 | |
| 2444 | kfree(adapter->vf_data); |
| 2445 | adapter->vf_data = NULL; |
| 2446 | adapter->vfs_allocated_count = 0; |
| 2447 | wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ); |
| 2448 | wrfl(); |
| 2449 | msleep(100); |
| 2450 | dev_info(&pdev->dev, "IOV Disabled\n"); |
| 2451 | |
| 2452 | /* Re-enable DMA Coalescing flag since IOV is turned off */ |
| 2453 | adapter->flags |= IGB_FLAG_DMAC; |
| 2454 | } |
| 2455 | |
| 2456 | return 0; |
| 2457 | } |
| 2458 | |
| 2459 | static int igb_enable_sriov(struct pci_dev *pdev, int num_vfs) |
| 2460 | { |
| 2461 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 2462 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 2463 | int old_vfs = pci_num_vf(pdev); |
| 2464 | int err = 0; |
| 2465 | int i; |
| 2466 | |
Mitch A Williams | 5026719 | 2013-06-20 06:03:36 +0000 | [diff] [blame] | 2467 | if (!adapter->msix_entries) { |
| 2468 | err = -EPERM; |
| 2469 | goto out; |
| 2470 | } |
| 2471 | |
Greg Rose | fa44f2f | 2013-01-17 01:03:06 -0800 | [diff] [blame] | 2472 | if (!num_vfs) |
| 2473 | goto out; |
| 2474 | else if (old_vfs && old_vfs == num_vfs) |
| 2475 | goto out; |
| 2476 | else if (old_vfs && old_vfs != num_vfs) |
| 2477 | err = igb_disable_sriov(pdev); |
| 2478 | |
| 2479 | if (err) |
| 2480 | goto out; |
| 2481 | |
| 2482 | if (num_vfs > 7) { |
| 2483 | err = -EPERM; |
| 2484 | goto out; |
| 2485 | } |
| 2486 | |
| 2487 | adapter->vfs_allocated_count = num_vfs; |
| 2488 | |
| 2489 | adapter->vf_data = kcalloc(adapter->vfs_allocated_count, |
| 2490 | sizeof(struct vf_data_storage), GFP_KERNEL); |
| 2491 | |
| 2492 | /* if allocation failed then we do not support SR-IOV */ |
| 2493 | if (!adapter->vf_data) { |
| 2494 | adapter->vfs_allocated_count = 0; |
| 2495 | dev_err(&pdev->dev, |
| 2496 | "Unable to allocate memory for VF Data Storage\n"); |
| 2497 | err = -ENOMEM; |
| 2498 | goto out; |
| 2499 | } |
| 2500 | |
| 2501 | err = pci_enable_sriov(pdev, adapter->vfs_allocated_count); |
| 2502 | if (err) |
| 2503 | goto err_out; |
| 2504 | |
| 2505 | dev_info(&pdev->dev, "%d VFs allocated\n", |
| 2506 | adapter->vfs_allocated_count); |
| 2507 | for (i = 0; i < adapter->vfs_allocated_count; i++) |
| 2508 | igb_vf_configure(adapter, i); |
| 2509 | |
| 2510 | /* DMA Coalescing is not supported in IOV mode. */ |
| 2511 | adapter->flags &= ~IGB_FLAG_DMAC; |
| 2512 | goto out; |
| 2513 | |
| 2514 | err_out: |
| 2515 | kfree(adapter->vf_data); |
| 2516 | adapter->vf_data = NULL; |
| 2517 | adapter->vfs_allocated_count = 0; |
| 2518 | out: |
| 2519 | return err; |
| 2520 | } |
| 2521 | |
| 2522 | #endif |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2523 | /** |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 2524 | * igb_remove_i2c - Cleanup I2C interface |
| 2525 | * @adapter: pointer to adapter structure |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2526 | **/ |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 2527 | static void igb_remove_i2c(struct igb_adapter *adapter) |
| 2528 | { |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 2529 | /* free the adapter bus structure */ |
| 2530 | i2c_del_adapter(&adapter->i2c_adap); |
| 2531 | } |
| 2532 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2533 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2534 | * igb_remove - Device Removal Routine |
| 2535 | * @pdev: PCI device information struct |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2536 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2537 | * igb_remove is called by the PCI subsystem to alert the driver |
| 2538 | * that it should release a PCI device. The could be caused by a |
| 2539 | * Hot-Plug event, or because the driver is going to be removed from |
| 2540 | * memory. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2541 | **/ |
Bill Pemberton | 9f9a12f | 2012-12-03 09:24:25 -0500 | [diff] [blame] | 2542 | static void igb_remove(struct pci_dev *pdev) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2543 | { |
| 2544 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 2545 | struct igb_adapter *adapter = netdev_priv(netdev); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 2546 | struct e1000_hw *hw = &adapter->hw; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2547 | |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 2548 | pm_runtime_get_noresume(&pdev->dev); |
Carolyn Wyborny | e428893 | 2012-12-07 03:01:42 +0000 | [diff] [blame] | 2549 | #ifdef CONFIG_IGB_HWMON |
| 2550 | igb_sysfs_exit(adapter); |
| 2551 | #endif |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 2552 | igb_remove_i2c(adapter); |
Matthew Vick | a79f4f8 | 2012-08-10 05:40:44 +0000 | [diff] [blame] | 2553 | igb_ptp_stop(adapter); |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2554 | /* The watchdog timer may be rescheduled, so explicitly |
Tejun Heo | 760141a | 2010-12-12 16:45:14 +0100 | [diff] [blame] | 2555 | * disable watchdog from being rescheduled. |
| 2556 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2557 | set_bit(__IGB_DOWN, &adapter->state); |
| 2558 | del_timer_sync(&adapter->watchdog_timer); |
| 2559 | del_timer_sync(&adapter->phy_info_timer); |
| 2560 | |
Tejun Heo | 760141a | 2010-12-12 16:45:14 +0100 | [diff] [blame] | 2561 | cancel_work_sync(&adapter->reset_task); |
| 2562 | cancel_work_sync(&adapter->watchdog_task); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2563 | |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 2564 | #ifdef CONFIG_IGB_DCA |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 2565 | if (adapter->flags & IGB_FLAG_DCA_ENABLED) { |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 2566 | dev_info(&pdev->dev, "DCA disabled\n"); |
| 2567 | dca_remove_requester(&pdev->dev); |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 2568 | adapter->flags &= ~IGB_FLAG_DCA_ENABLED; |
Alexander Duyck | cbd347a | 2009-02-15 23:59:44 -0800 | [diff] [blame] | 2569 | wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_DISABLE); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 2570 | } |
| 2571 | #endif |
| 2572 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2573 | /* Release control of h/w to f/w. If f/w is AMT enabled, this |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2574 | * would have already happened in close and is redundant. |
| 2575 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2576 | igb_release_hw_control(adapter); |
| 2577 | |
| 2578 | unregister_netdev(netdev); |
| 2579 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 2580 | igb_clear_interrupt_scheme(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2581 | |
Alexander Duyck | 3768011 | 2009-02-19 20:40:30 -0800 | [diff] [blame] | 2582 | #ifdef CONFIG_PCI_IOV |
Greg Rose | fa44f2f | 2013-01-17 01:03:06 -0800 | [diff] [blame] | 2583 | igb_disable_sriov(pdev); |
Alexander Duyck | 3768011 | 2009-02-19 20:40:30 -0800 | [diff] [blame] | 2584 | #endif |
Alexander Duyck | 559e9c4 | 2009-10-27 23:52:50 +0000 | [diff] [blame] | 2585 | |
Alexander Duyck | 28b0759 | 2009-02-06 23:20:31 +0000 | [diff] [blame] | 2586 | iounmap(hw->hw_addr); |
| 2587 | if (hw->flash_address) |
| 2588 | iounmap(hw->flash_address); |
Alexander Duyck | 559e9c4 | 2009-10-27 23:52:50 +0000 | [diff] [blame] | 2589 | pci_release_selected_regions(pdev, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2590 | pci_select_bars(pdev, IORESOURCE_MEM)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2591 | |
Carolyn Wyborny | 1128c75 | 2011-10-14 00:13:49 +0000 | [diff] [blame] | 2592 | kfree(adapter->shadow_vfta); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2593 | free_netdev(netdev); |
| 2594 | |
Frans Pop | 19d5afd | 2009-10-02 10:04:12 -0700 | [diff] [blame] | 2595 | pci_disable_pcie_error_reporting(pdev); |
Alexander Duyck | 40a914f | 2008-11-27 00:24:37 -0800 | [diff] [blame] | 2596 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2597 | pci_disable_device(pdev); |
| 2598 | } |
| 2599 | |
| 2600 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2601 | * igb_probe_vfs - Initialize vf data storage and add VFs to pci config space |
| 2602 | * @adapter: board private structure to initialize |
Alexander Duyck | a6b623e | 2009-10-27 23:47:53 +0000 | [diff] [blame] | 2603 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2604 | * This function initializes the vf specific data storage and then attempts to |
| 2605 | * allocate the VFs. The reason for ordering it this way is because it is much |
| 2606 | * mor expensive time wise to disable SR-IOV than it is to allocate and free |
| 2607 | * the memory for the VFs. |
Alexander Duyck | a6b623e | 2009-10-27 23:47:53 +0000 | [diff] [blame] | 2608 | **/ |
Bill Pemberton | 9f9a12f | 2012-12-03 09:24:25 -0500 | [diff] [blame] | 2609 | static void igb_probe_vfs(struct igb_adapter *adapter) |
Alexander Duyck | a6b623e | 2009-10-27 23:47:53 +0000 | [diff] [blame] | 2610 | { |
| 2611 | #ifdef CONFIG_PCI_IOV |
| 2612 | struct pci_dev *pdev = adapter->pdev; |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 2613 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | a6b623e | 2009-10-27 23:47:53 +0000 | [diff] [blame] | 2614 | |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 2615 | /* Virtualization features not supported on i210 family. */ |
| 2616 | if ((hw->mac.type == e1000_i210) || (hw->mac.type == e1000_i211)) |
| 2617 | return; |
| 2618 | |
Greg Rose | fa44f2f | 2013-01-17 01:03:06 -0800 | [diff] [blame] | 2619 | pci_sriov_set_totalvfs(pdev, 7); |
Alex Williamson | d5e51a1 | 2013-03-13 15:50:29 +0000 | [diff] [blame] | 2620 | igb_enable_sriov(pdev, max_vfs); |
Alexander Duyck | a6b623e | 2009-10-27 23:47:53 +0000 | [diff] [blame] | 2621 | |
Alexander Duyck | a6b623e | 2009-10-27 23:47:53 +0000 | [diff] [blame] | 2622 | #endif /* CONFIG_PCI_IOV */ |
| 2623 | } |
| 2624 | |
Greg Rose | fa44f2f | 2013-01-17 01:03:06 -0800 | [diff] [blame] | 2625 | static void igb_init_queue_configuration(struct igb_adapter *adapter) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2626 | { |
| 2627 | struct e1000_hw *hw = &adapter->hw; |
Matthew Vick | 374a542 | 2012-05-18 04:54:58 +0000 | [diff] [blame] | 2628 | u32 max_rss_queues; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2629 | |
Matthew Vick | 374a542 | 2012-05-18 04:54:58 +0000 | [diff] [blame] | 2630 | /* Determine the maximum number of RSS queues supported. */ |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 2631 | switch (hw->mac.type) { |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 2632 | case e1000_i211: |
Matthew Vick | 374a542 | 2012-05-18 04:54:58 +0000 | [diff] [blame] | 2633 | max_rss_queues = IGB_MAX_RX_QUEUES_I211; |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 2634 | break; |
Matthew Vick | 374a542 | 2012-05-18 04:54:58 +0000 | [diff] [blame] | 2635 | case e1000_82575: |
| 2636 | case e1000_i210: |
| 2637 | max_rss_queues = IGB_MAX_RX_QUEUES_82575; |
| 2638 | break; |
| 2639 | case e1000_i350: |
| 2640 | /* I350 cannot do RSS and SR-IOV at the same time */ |
| 2641 | if (!!adapter->vfs_allocated_count) { |
| 2642 | max_rss_queues = 1; |
| 2643 | break; |
| 2644 | } |
| 2645 | /* fall through */ |
| 2646 | case e1000_82576: |
| 2647 | if (!!adapter->vfs_allocated_count) { |
| 2648 | max_rss_queues = 2; |
| 2649 | break; |
| 2650 | } |
| 2651 | /* fall through */ |
| 2652 | case e1000_82580: |
Carolyn Wyborny | ceb5f13 | 2013-04-18 22:21:30 +0000 | [diff] [blame] | 2653 | case e1000_i354: |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 2654 | default: |
Matthew Vick | 374a542 | 2012-05-18 04:54:58 +0000 | [diff] [blame] | 2655 | max_rss_queues = IGB_MAX_RX_QUEUES; |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 2656 | break; |
| 2657 | } |
Alexander Duyck | a99955f | 2009-11-12 18:37:19 +0000 | [diff] [blame] | 2658 | |
Matthew Vick | 374a542 | 2012-05-18 04:54:58 +0000 | [diff] [blame] | 2659 | adapter->rss_queues = min_t(u32, max_rss_queues, num_online_cpus()); |
| 2660 | |
| 2661 | /* Determine if we need to pair queues. */ |
| 2662 | switch (hw->mac.type) { |
| 2663 | case e1000_82575: |
| 2664 | case e1000_i211: |
| 2665 | /* Device supports enough interrupts without queue pairing. */ |
| 2666 | break; |
| 2667 | case e1000_82576: |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2668 | /* If VFs are going to be allocated with RSS queues then we |
Matthew Vick | 374a542 | 2012-05-18 04:54:58 +0000 | [diff] [blame] | 2669 | * should pair the queues in order to conserve interrupts due |
| 2670 | * to limited supply. |
| 2671 | */ |
| 2672 | if ((adapter->rss_queues > 1) && |
| 2673 | (adapter->vfs_allocated_count > 6)) |
| 2674 | adapter->flags |= IGB_FLAG_QUEUE_PAIRS; |
| 2675 | /* fall through */ |
| 2676 | case e1000_82580: |
| 2677 | case e1000_i350: |
Carolyn Wyborny | ceb5f13 | 2013-04-18 22:21:30 +0000 | [diff] [blame] | 2678 | case e1000_i354: |
Matthew Vick | 374a542 | 2012-05-18 04:54:58 +0000 | [diff] [blame] | 2679 | case e1000_i210: |
| 2680 | default: |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2681 | /* If rss_queues > half of max_rss_queues, pair the queues in |
Matthew Vick | 374a542 | 2012-05-18 04:54:58 +0000 | [diff] [blame] | 2682 | * order to conserve interrupts due to limited supply. |
| 2683 | */ |
| 2684 | if (adapter->rss_queues > (max_rss_queues / 2)) |
| 2685 | adapter->flags |= IGB_FLAG_QUEUE_PAIRS; |
| 2686 | break; |
| 2687 | } |
Greg Rose | fa44f2f | 2013-01-17 01:03:06 -0800 | [diff] [blame] | 2688 | } |
| 2689 | |
| 2690 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2691 | * igb_sw_init - Initialize general software structures (struct igb_adapter) |
| 2692 | * @adapter: board private structure to initialize |
Greg Rose | fa44f2f | 2013-01-17 01:03:06 -0800 | [diff] [blame] | 2693 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2694 | * igb_sw_init initializes the Adapter private data structure. |
| 2695 | * Fields are initialized based on PCI device information and |
| 2696 | * OS network device settings (MTU size). |
Greg Rose | fa44f2f | 2013-01-17 01:03:06 -0800 | [diff] [blame] | 2697 | **/ |
| 2698 | static int igb_sw_init(struct igb_adapter *adapter) |
| 2699 | { |
| 2700 | struct e1000_hw *hw = &adapter->hw; |
| 2701 | struct net_device *netdev = adapter->netdev; |
| 2702 | struct pci_dev *pdev = adapter->pdev; |
| 2703 | |
| 2704 | pci_read_config_word(pdev, PCI_COMMAND, &hw->bus.pci_cmd_word); |
| 2705 | |
| 2706 | /* set default ring sizes */ |
| 2707 | adapter->tx_ring_count = IGB_DEFAULT_TXD; |
| 2708 | adapter->rx_ring_count = IGB_DEFAULT_RXD; |
| 2709 | |
| 2710 | /* set default ITR values */ |
| 2711 | adapter->rx_itr_setting = IGB_DEFAULT_ITR; |
| 2712 | adapter->tx_itr_setting = IGB_DEFAULT_ITR; |
| 2713 | |
| 2714 | /* set default work limits */ |
| 2715 | adapter->tx_work_limit = IGB_DEFAULT_TX_WORK; |
| 2716 | |
| 2717 | adapter->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN + |
| 2718 | VLAN_HLEN; |
| 2719 | adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN; |
| 2720 | |
| 2721 | spin_lock_init(&adapter->stats64_lock); |
| 2722 | #ifdef CONFIG_PCI_IOV |
| 2723 | switch (hw->mac.type) { |
| 2724 | case e1000_82576: |
| 2725 | case e1000_i350: |
| 2726 | if (max_vfs > 7) { |
| 2727 | dev_warn(&pdev->dev, |
| 2728 | "Maximum of 7 VFs per PF, using max\n"); |
Alex Williamson | d0f63ac | 2013-03-13 15:50:24 +0000 | [diff] [blame] | 2729 | max_vfs = adapter->vfs_allocated_count = 7; |
Greg Rose | fa44f2f | 2013-01-17 01:03:06 -0800 | [diff] [blame] | 2730 | } else |
| 2731 | adapter->vfs_allocated_count = max_vfs; |
| 2732 | if (adapter->vfs_allocated_count) |
| 2733 | dev_warn(&pdev->dev, |
| 2734 | "Enabling SR-IOV VFs using the module parameter is deprecated - please use the pci sysfs interface.\n"); |
| 2735 | break; |
| 2736 | default: |
| 2737 | break; |
| 2738 | } |
| 2739 | #endif /* CONFIG_PCI_IOV */ |
| 2740 | |
| 2741 | igb_init_queue_configuration(adapter); |
Alexander Duyck | a99955f | 2009-11-12 18:37:19 +0000 | [diff] [blame] | 2742 | |
Carolyn Wyborny | 1128c75 | 2011-10-14 00:13:49 +0000 | [diff] [blame] | 2743 | /* Setup and initialize a copy of the hw vlan table array */ |
Joe Perches | b2adaca | 2013-02-03 17:43:58 +0000 | [diff] [blame] | 2744 | adapter->shadow_vfta = kcalloc(E1000_VLAN_FILTER_TBL_SIZE, sizeof(u32), |
| 2745 | GFP_ATOMIC); |
Carolyn Wyborny | 1128c75 | 2011-10-14 00:13:49 +0000 | [diff] [blame] | 2746 | |
Alexander Duyck | a6b623e | 2009-10-27 23:47:53 +0000 | [diff] [blame] | 2747 | /* This call may decrease the number of queues */ |
Stefan Assmann | 53c7d06 | 2012-12-04 06:00:12 +0000 | [diff] [blame] | 2748 | if (igb_init_interrupt_scheme(adapter, true)) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2749 | dev_err(&pdev->dev, "Unable to allocate memory for queues\n"); |
| 2750 | return -ENOMEM; |
| 2751 | } |
| 2752 | |
Alexander Duyck | a6b623e | 2009-10-27 23:47:53 +0000 | [diff] [blame] | 2753 | igb_probe_vfs(adapter); |
| 2754 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2755 | /* Explicitly disable IRQ since the NIC can be in any state. */ |
| 2756 | igb_irq_disable(adapter); |
| 2757 | |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 2758 | if (hw->mac.type >= e1000_i350) |
Carolyn Wyborny | 831ec0b | 2011-03-11 20:43:54 -0800 | [diff] [blame] | 2759 | adapter->flags &= ~IGB_FLAG_DMAC; |
| 2760 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2761 | set_bit(__IGB_DOWN, &adapter->state); |
| 2762 | return 0; |
| 2763 | } |
| 2764 | |
| 2765 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2766 | * igb_open - Called when a network interface is made active |
| 2767 | * @netdev: network interface device structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2768 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2769 | * Returns 0 on success, negative value on failure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2770 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2771 | * The open entry point is called when a network interface is made |
| 2772 | * active by the system (IFF_UP). At this point all resources needed |
| 2773 | * for transmit and receive operations are allocated, the interrupt |
| 2774 | * handler is registered with the OS, the watchdog timer is started, |
| 2775 | * and the stack is notified that the interface is ready. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2776 | **/ |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 2777 | static int __igb_open(struct net_device *netdev, bool resuming) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2778 | { |
| 2779 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 2780 | struct e1000_hw *hw = &adapter->hw; |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 2781 | struct pci_dev *pdev = adapter->pdev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2782 | int err; |
| 2783 | int i; |
| 2784 | |
| 2785 | /* disallow open during test */ |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 2786 | if (test_bit(__IGB_TESTING, &adapter->state)) { |
| 2787 | WARN_ON(resuming); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2788 | return -EBUSY; |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 2789 | } |
| 2790 | |
| 2791 | if (!resuming) |
| 2792 | pm_runtime_get_sync(&pdev->dev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2793 | |
Jesse Brandeburg | b168dfc | 2009-04-17 20:44:32 +0000 | [diff] [blame] | 2794 | netif_carrier_off(netdev); |
| 2795 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2796 | /* allocate transmit descriptors */ |
| 2797 | err = igb_setup_all_tx_resources(adapter); |
| 2798 | if (err) |
| 2799 | goto err_setup_tx; |
| 2800 | |
| 2801 | /* allocate receive descriptors */ |
| 2802 | err = igb_setup_all_rx_resources(adapter); |
| 2803 | if (err) |
| 2804 | goto err_setup_rx; |
| 2805 | |
Nick Nunley | 88a268c | 2010-02-17 01:01:59 +0000 | [diff] [blame] | 2806 | igb_power_up_link(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2807 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2808 | /* before we allocate an interrupt, we must be ready to handle it. |
| 2809 | * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt |
| 2810 | * as soon as we call pci_request_irq, so we have to setup our |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2811 | * clean_rx handler before we do so. |
| 2812 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2813 | igb_configure(adapter); |
| 2814 | |
| 2815 | err = igb_request_irq(adapter); |
| 2816 | if (err) |
| 2817 | goto err_req_irq; |
| 2818 | |
Alexander Duyck | 0c2cc02 | 2012-09-25 00:31:22 +0000 | [diff] [blame] | 2819 | /* Notify the stack of the actual queue counts. */ |
| 2820 | err = netif_set_real_num_tx_queues(adapter->netdev, |
| 2821 | adapter->num_tx_queues); |
| 2822 | if (err) |
| 2823 | goto err_set_queues; |
| 2824 | |
| 2825 | err = netif_set_real_num_rx_queues(adapter->netdev, |
| 2826 | adapter->num_rx_queues); |
| 2827 | if (err) |
| 2828 | goto err_set_queues; |
| 2829 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2830 | /* From here on the code is the same as igb_up() */ |
| 2831 | clear_bit(__IGB_DOWN, &adapter->state); |
| 2832 | |
Alexander Duyck | 0d1ae7f | 2011-08-26 07:46:34 +0000 | [diff] [blame] | 2833 | for (i = 0; i < adapter->num_q_vectors; i++) |
| 2834 | napi_enable(&(adapter->q_vector[i]->napi)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2835 | |
| 2836 | /* Clear any pending interrupts. */ |
| 2837 | rd32(E1000_ICR); |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 2838 | |
| 2839 | igb_irq_enable(adapter); |
| 2840 | |
Alexander Duyck | d496030 | 2009-10-27 15:53:45 +0000 | [diff] [blame] | 2841 | /* notify VFs that reset has been completed */ |
| 2842 | if (adapter->vfs_allocated_count) { |
| 2843 | u32 reg_data = rd32(E1000_CTRL_EXT); |
| 2844 | reg_data |= E1000_CTRL_EXT_PFRSTD; |
| 2845 | wr32(E1000_CTRL_EXT, reg_data); |
| 2846 | } |
| 2847 | |
Jeff Kirsher | d55b53f | 2008-07-18 04:33:03 -0700 | [diff] [blame] | 2848 | netif_tx_start_all_queues(netdev); |
| 2849 | |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 2850 | if (!resuming) |
| 2851 | pm_runtime_put(&pdev->dev); |
| 2852 | |
Alexander Duyck | 25568a5 | 2009-10-27 23:49:59 +0000 | [diff] [blame] | 2853 | /* start the watchdog. */ |
| 2854 | hw->mac.get_link_status = 1; |
| 2855 | schedule_work(&adapter->watchdog_task); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2856 | |
| 2857 | return 0; |
| 2858 | |
Alexander Duyck | 0c2cc02 | 2012-09-25 00:31:22 +0000 | [diff] [blame] | 2859 | err_set_queues: |
| 2860 | igb_free_irq(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2861 | err_req_irq: |
| 2862 | igb_release_hw_control(adapter); |
Nick Nunley | 88a268c | 2010-02-17 01:01:59 +0000 | [diff] [blame] | 2863 | igb_power_down_link(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2864 | igb_free_all_rx_resources(adapter); |
| 2865 | err_setup_rx: |
| 2866 | igb_free_all_tx_resources(adapter); |
| 2867 | err_setup_tx: |
| 2868 | igb_reset(adapter); |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 2869 | if (!resuming) |
| 2870 | pm_runtime_put(&pdev->dev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2871 | |
| 2872 | return err; |
| 2873 | } |
| 2874 | |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 2875 | static int igb_open(struct net_device *netdev) |
| 2876 | { |
| 2877 | return __igb_open(netdev, false); |
| 2878 | } |
| 2879 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2880 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2881 | * igb_close - Disables a network interface |
| 2882 | * @netdev: network interface device structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2883 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2884 | * Returns 0, this is not allowed to fail |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2885 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2886 | * The close entry point is called when an interface is de-activated |
| 2887 | * by the OS. The hardware is still under the driver's control, but |
| 2888 | * needs to be disabled. A global MAC reset is issued to stop the |
| 2889 | * hardware, and all transmit and receive resources are freed. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2890 | **/ |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 2891 | static int __igb_close(struct net_device *netdev, bool suspending) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2892 | { |
| 2893 | struct igb_adapter *adapter = netdev_priv(netdev); |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 2894 | struct pci_dev *pdev = adapter->pdev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2895 | |
| 2896 | WARN_ON(test_bit(__IGB_RESETTING, &adapter->state)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2897 | |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 2898 | if (!suspending) |
| 2899 | pm_runtime_get_sync(&pdev->dev); |
| 2900 | |
| 2901 | igb_down(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2902 | igb_free_irq(adapter); |
| 2903 | |
| 2904 | igb_free_all_tx_resources(adapter); |
| 2905 | igb_free_all_rx_resources(adapter); |
| 2906 | |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 2907 | if (!suspending) |
| 2908 | pm_runtime_put_sync(&pdev->dev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2909 | return 0; |
| 2910 | } |
| 2911 | |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 2912 | static int igb_close(struct net_device *netdev) |
| 2913 | { |
| 2914 | return __igb_close(netdev, false); |
| 2915 | } |
| 2916 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2917 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2918 | * igb_setup_tx_resources - allocate Tx resources (Descriptors) |
| 2919 | * @tx_ring: tx descriptor ring (for a specific queue) to setup |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2920 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2921 | * Return 0 on success, negative on failure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2922 | **/ |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 2923 | int igb_setup_tx_resources(struct igb_ring *tx_ring) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2924 | { |
Alexander Duyck | 59d7198 | 2010-04-27 13:09:25 +0000 | [diff] [blame] | 2925 | struct device *dev = tx_ring->dev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2926 | int size; |
| 2927 | |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 2928 | size = sizeof(struct igb_tx_buffer) * tx_ring->count; |
Alexander Duyck | f33005a | 2012-09-13 06:27:55 +0000 | [diff] [blame] | 2929 | |
| 2930 | tx_ring->tx_buffer_info = vzalloc(size); |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 2931 | if (!tx_ring->tx_buffer_info) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2932 | goto err; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2933 | |
| 2934 | /* round up to nearest 4K */ |
Alexander Duyck | 85e8d00 | 2009-02-16 00:00:20 -0800 | [diff] [blame] | 2935 | tx_ring->size = tx_ring->count * sizeof(union e1000_adv_tx_desc); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2936 | tx_ring->size = ALIGN(tx_ring->size, 4096); |
| 2937 | |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 2938 | tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size, |
| 2939 | &tx_ring->dma, GFP_KERNEL); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2940 | if (!tx_ring->desc) |
| 2941 | goto err; |
| 2942 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2943 | tx_ring->next_to_use = 0; |
| 2944 | tx_ring->next_to_clean = 0; |
Alexander Duyck | 81c2fc2 | 2011-08-26 07:45:20 +0000 | [diff] [blame] | 2945 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2946 | return 0; |
| 2947 | |
| 2948 | err: |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 2949 | vfree(tx_ring->tx_buffer_info); |
Alexander Duyck | f33005a | 2012-09-13 06:27:55 +0000 | [diff] [blame] | 2950 | tx_ring->tx_buffer_info = NULL; |
| 2951 | dev_err(dev, "Unable to allocate memory for the Tx descriptor ring\n"); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2952 | return -ENOMEM; |
| 2953 | } |
| 2954 | |
| 2955 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2956 | * igb_setup_all_tx_resources - wrapper to allocate Tx resources |
| 2957 | * (Descriptors) for all queues |
| 2958 | * @adapter: board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2959 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2960 | * Return 0 on success, negative on failure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2961 | **/ |
| 2962 | static int igb_setup_all_tx_resources(struct igb_adapter *adapter) |
| 2963 | { |
Alexander Duyck | 439705e | 2009-10-27 23:49:20 +0000 | [diff] [blame] | 2964 | struct pci_dev *pdev = adapter->pdev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2965 | int i, err = 0; |
| 2966 | |
| 2967 | for (i = 0; i < adapter->num_tx_queues; i++) { |
Alexander Duyck | 3025a44 | 2010-02-17 01:02:39 +0000 | [diff] [blame] | 2968 | err = igb_setup_tx_resources(adapter->tx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2969 | if (err) { |
Alexander Duyck | 439705e | 2009-10-27 23:49:20 +0000 | [diff] [blame] | 2970 | dev_err(&pdev->dev, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2971 | "Allocation for Tx Queue %u failed\n", i); |
| 2972 | for (i--; i >= 0; i--) |
Alexander Duyck | 3025a44 | 2010-02-17 01:02:39 +0000 | [diff] [blame] | 2973 | igb_free_tx_resources(adapter->tx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2974 | break; |
| 2975 | } |
| 2976 | } |
| 2977 | |
| 2978 | return err; |
| 2979 | } |
| 2980 | |
| 2981 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 2982 | * igb_setup_tctl - configure the transmit control registers |
| 2983 | * @adapter: Board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2984 | **/ |
Alexander Duyck | d7ee5b3 | 2009-10-27 15:54:23 +0000 | [diff] [blame] | 2985 | void igb_setup_tctl(struct igb_adapter *adapter) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2986 | { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2987 | struct e1000_hw *hw = &adapter->hw; |
| 2988 | u32 tctl; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2989 | |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 2990 | /* disable queue 0 which is enabled by default on 82575 and 82576 */ |
| 2991 | wr32(E1000_TXDCTL(0), 0); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2992 | |
| 2993 | /* Program the Transmit Control Register */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2994 | tctl = rd32(E1000_TCTL); |
| 2995 | tctl &= ~E1000_TCTL_CT; |
| 2996 | tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC | |
| 2997 | (E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT); |
| 2998 | |
| 2999 | igb_config_collision_dist(hw); |
| 3000 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3001 | /* Enable transmits */ |
| 3002 | tctl |= E1000_TCTL_EN; |
| 3003 | |
| 3004 | wr32(E1000_TCTL, tctl); |
| 3005 | } |
| 3006 | |
| 3007 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3008 | * igb_configure_tx_ring - Configure transmit ring after Reset |
| 3009 | * @adapter: board private structure |
| 3010 | * @ring: tx ring to configure |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3011 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3012 | * Configure a transmit ring after a reset. |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3013 | **/ |
Alexander Duyck | d7ee5b3 | 2009-10-27 15:54:23 +0000 | [diff] [blame] | 3014 | void igb_configure_tx_ring(struct igb_adapter *adapter, |
| 3015 | struct igb_ring *ring) |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3016 | { |
| 3017 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | a74420e | 2011-08-26 07:43:27 +0000 | [diff] [blame] | 3018 | u32 txdctl = 0; |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3019 | u64 tdba = ring->dma; |
| 3020 | int reg_idx = ring->reg_idx; |
| 3021 | |
| 3022 | /* disable the queue */ |
Alexander Duyck | a74420e | 2011-08-26 07:43:27 +0000 | [diff] [blame] | 3023 | wr32(E1000_TXDCTL(reg_idx), 0); |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3024 | wrfl(); |
| 3025 | mdelay(10); |
| 3026 | |
| 3027 | wr32(E1000_TDLEN(reg_idx), |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3028 | ring->count * sizeof(union e1000_adv_tx_desc)); |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3029 | wr32(E1000_TDBAL(reg_idx), |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3030 | tdba & 0x00000000ffffffffULL); |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3031 | wr32(E1000_TDBAH(reg_idx), tdba >> 32); |
| 3032 | |
Alexander Duyck | fce99e3 | 2009-10-27 15:51:27 +0000 | [diff] [blame] | 3033 | ring->tail = hw->hw_addr + E1000_TDT(reg_idx); |
Alexander Duyck | a74420e | 2011-08-26 07:43:27 +0000 | [diff] [blame] | 3034 | wr32(E1000_TDH(reg_idx), 0); |
Alexander Duyck | fce99e3 | 2009-10-27 15:51:27 +0000 | [diff] [blame] | 3035 | writel(0, ring->tail); |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3036 | |
| 3037 | txdctl |= IGB_TX_PTHRESH; |
| 3038 | txdctl |= IGB_TX_HTHRESH << 8; |
| 3039 | txdctl |= IGB_TX_WTHRESH << 16; |
| 3040 | |
| 3041 | txdctl |= E1000_TXDCTL_QUEUE_ENABLE; |
| 3042 | wr32(E1000_TXDCTL(reg_idx), txdctl); |
| 3043 | } |
| 3044 | |
| 3045 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3046 | * igb_configure_tx - Configure transmit Unit after Reset |
| 3047 | * @adapter: board private structure |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3048 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3049 | * Configure the Tx unit of the MAC after a reset. |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3050 | **/ |
| 3051 | static void igb_configure_tx(struct igb_adapter *adapter) |
| 3052 | { |
| 3053 | int i; |
| 3054 | |
| 3055 | for (i = 0; i < adapter->num_tx_queues; i++) |
Alexander Duyck | 3025a44 | 2010-02-17 01:02:39 +0000 | [diff] [blame] | 3056 | igb_configure_tx_ring(adapter, adapter->tx_ring[i]); |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3057 | } |
| 3058 | |
| 3059 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3060 | * igb_setup_rx_resources - allocate Rx resources (Descriptors) |
| 3061 | * @rx_ring: Rx descriptor ring (for a specific queue) to setup |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3062 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3063 | * Returns 0 on success, negative on failure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3064 | **/ |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 3065 | int igb_setup_rx_resources(struct igb_ring *rx_ring) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3066 | { |
Alexander Duyck | 59d7198 | 2010-04-27 13:09:25 +0000 | [diff] [blame] | 3067 | struct device *dev = rx_ring->dev; |
Alexander Duyck | f33005a | 2012-09-13 06:27:55 +0000 | [diff] [blame] | 3068 | int size; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3069 | |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 3070 | size = sizeof(struct igb_rx_buffer) * rx_ring->count; |
Alexander Duyck | f33005a | 2012-09-13 06:27:55 +0000 | [diff] [blame] | 3071 | |
| 3072 | rx_ring->rx_buffer_info = vzalloc(size); |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 3073 | if (!rx_ring->rx_buffer_info) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3074 | goto err; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3075 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3076 | /* Round up to nearest 4K */ |
Alexander Duyck | f33005a | 2012-09-13 06:27:55 +0000 | [diff] [blame] | 3077 | rx_ring->size = rx_ring->count * sizeof(union e1000_adv_rx_desc); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3078 | rx_ring->size = ALIGN(rx_ring->size, 4096); |
| 3079 | |
Alexander Duyck | 5536d21 | 2012-09-25 00:31:17 +0000 | [diff] [blame] | 3080 | rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size, |
| 3081 | &rx_ring->dma, GFP_KERNEL); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3082 | if (!rx_ring->desc) |
| 3083 | goto err; |
| 3084 | |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 3085 | rx_ring->next_to_alloc = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3086 | rx_ring->next_to_clean = 0; |
| 3087 | rx_ring->next_to_use = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3088 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3089 | return 0; |
| 3090 | |
| 3091 | err: |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 3092 | vfree(rx_ring->rx_buffer_info); |
| 3093 | rx_ring->rx_buffer_info = NULL; |
Alexander Duyck | f33005a | 2012-09-13 06:27:55 +0000 | [diff] [blame] | 3094 | dev_err(dev, "Unable to allocate memory for the Rx descriptor ring\n"); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3095 | return -ENOMEM; |
| 3096 | } |
| 3097 | |
| 3098 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3099 | * igb_setup_all_rx_resources - wrapper to allocate Rx resources |
| 3100 | * (Descriptors) for all queues |
| 3101 | * @adapter: board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3102 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3103 | * Return 0 on success, negative on failure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3104 | **/ |
| 3105 | static int igb_setup_all_rx_resources(struct igb_adapter *adapter) |
| 3106 | { |
Alexander Duyck | 439705e | 2009-10-27 23:49:20 +0000 | [diff] [blame] | 3107 | struct pci_dev *pdev = adapter->pdev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3108 | int i, err = 0; |
| 3109 | |
| 3110 | for (i = 0; i < adapter->num_rx_queues; i++) { |
Alexander Duyck | 3025a44 | 2010-02-17 01:02:39 +0000 | [diff] [blame] | 3111 | err = igb_setup_rx_resources(adapter->rx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3112 | if (err) { |
Alexander Duyck | 439705e | 2009-10-27 23:49:20 +0000 | [diff] [blame] | 3113 | dev_err(&pdev->dev, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3114 | "Allocation for Rx Queue %u failed\n", i); |
| 3115 | for (i--; i >= 0; i--) |
Alexander Duyck | 3025a44 | 2010-02-17 01:02:39 +0000 | [diff] [blame] | 3116 | igb_free_rx_resources(adapter->rx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3117 | break; |
| 3118 | } |
| 3119 | } |
| 3120 | |
| 3121 | return err; |
| 3122 | } |
| 3123 | |
| 3124 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3125 | * igb_setup_mrqc - configure the multiple receive queue control registers |
| 3126 | * @adapter: Board private structure |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3127 | **/ |
| 3128 | static void igb_setup_mrqc(struct igb_adapter *adapter) |
| 3129 | { |
| 3130 | struct e1000_hw *hw = &adapter->hw; |
| 3131 | u32 mrqc, rxcsum; |
Laura Mihaela Vasilescu | ed12cc9 | 2013-07-31 20:19:54 +0000 | [diff] [blame] | 3132 | u32 j, num_rx_queues; |
Alexander Duyck | a57fe23 | 2012-09-13 06:28:16 +0000 | [diff] [blame] | 3133 | static const u32 rsskey[10] = { 0xDA565A6D, 0xC20E5B25, 0x3D256741, |
| 3134 | 0xB08FA343, 0xCB2BCAD0, 0xB4307BAE, |
| 3135 | 0xA32DCB77, 0x0CF23080, 0x3BB7426A, |
| 3136 | 0xFA01ACBE }; |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3137 | |
| 3138 | /* Fill out hash function seeds */ |
Alexander Duyck | a57fe23 | 2012-09-13 06:28:16 +0000 | [diff] [blame] | 3139 | for (j = 0; j < 10; j++) |
| 3140 | wr32(E1000_RSSRK(j), rsskey[j]); |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3141 | |
Alexander Duyck | a99955f | 2009-11-12 18:37:19 +0000 | [diff] [blame] | 3142 | num_rx_queues = adapter->rss_queues; |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3143 | |
Alexander Duyck | 797fd4b | 2012-09-13 06:28:11 +0000 | [diff] [blame] | 3144 | switch (hw->mac.type) { |
Alexander Duyck | 797fd4b | 2012-09-13 06:28:11 +0000 | [diff] [blame] | 3145 | case e1000_82576: |
| 3146 | /* 82576 supports 2 RSS queues for SR-IOV */ |
Laura Mihaela Vasilescu | ed12cc9 | 2013-07-31 20:19:54 +0000 | [diff] [blame] | 3147 | if (adapter->vfs_allocated_count) |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3148 | num_rx_queues = 2; |
Alexander Duyck | 797fd4b | 2012-09-13 06:28:11 +0000 | [diff] [blame] | 3149 | break; |
| 3150 | default: |
| 3151 | break; |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3152 | } |
| 3153 | |
Laura Mihaela Vasilescu | ed12cc9 | 2013-07-31 20:19:54 +0000 | [diff] [blame] | 3154 | if (adapter->rss_indir_tbl_init != num_rx_queues) { |
| 3155 | for (j = 0; j < IGB_RETA_SIZE; j++) |
| 3156 | adapter->rss_indir_tbl[j] = (j * num_rx_queues) / IGB_RETA_SIZE; |
| 3157 | adapter->rss_indir_tbl_init = num_rx_queues; |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3158 | } |
Laura Mihaela Vasilescu | ed12cc9 | 2013-07-31 20:19:54 +0000 | [diff] [blame] | 3159 | igb_write_rss_indir_tbl(adapter); |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3160 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3161 | /* Disable raw packet checksumming so that RSS hash is placed in |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3162 | * descriptor on writeback. No need to enable TCP/UDP/IP checksum |
| 3163 | * offloads as they are enabled by default |
| 3164 | */ |
| 3165 | rxcsum = rd32(E1000_RXCSUM); |
| 3166 | rxcsum |= E1000_RXCSUM_PCSD; |
| 3167 | |
| 3168 | if (adapter->hw.mac.type >= e1000_82576) |
| 3169 | /* Enable Receive Checksum Offload for SCTP */ |
| 3170 | rxcsum |= E1000_RXCSUM_CRCOFL; |
| 3171 | |
| 3172 | /* Don't need to set TUOFL or IPOFL, they default to 1 */ |
| 3173 | wr32(E1000_RXCSUM, rxcsum); |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 3174 | |
Akeem G. Abodunrin | 039454a | 2012-11-13 04:03:21 +0000 | [diff] [blame] | 3175 | /* Generate RSS hash based on packet types, TCP/UDP |
| 3176 | * port numbers and/or IPv4/v6 src and dst addresses |
| 3177 | */ |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 3178 | mrqc = E1000_MRQC_RSS_FIELD_IPV4 | |
| 3179 | E1000_MRQC_RSS_FIELD_IPV4_TCP | |
| 3180 | E1000_MRQC_RSS_FIELD_IPV6 | |
| 3181 | E1000_MRQC_RSS_FIELD_IPV6_TCP | |
| 3182 | E1000_MRQC_RSS_FIELD_IPV6_TCP_EX; |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3183 | |
Akeem G. Abodunrin | 039454a | 2012-11-13 04:03:21 +0000 | [diff] [blame] | 3184 | if (adapter->flags & IGB_FLAG_RSS_FIELD_IPV4_UDP) |
| 3185 | mrqc |= E1000_MRQC_RSS_FIELD_IPV4_UDP; |
| 3186 | if (adapter->flags & IGB_FLAG_RSS_FIELD_IPV6_UDP) |
| 3187 | mrqc |= E1000_MRQC_RSS_FIELD_IPV6_UDP; |
| 3188 | |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3189 | /* If VMDq is enabled then we set the appropriate mode for that, else |
| 3190 | * we default to RSS so that an RSS hash is calculated per packet even |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3191 | * if we are only using one queue |
| 3192 | */ |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3193 | if (adapter->vfs_allocated_count) { |
| 3194 | if (hw->mac.type > e1000_82575) { |
| 3195 | /* Set the default pool for the PF's first queue */ |
| 3196 | u32 vtctl = rd32(E1000_VT_CTL); |
| 3197 | vtctl &= ~(E1000_VT_CTL_DEFAULT_POOL_MASK | |
| 3198 | E1000_VT_CTL_DISABLE_DEF_POOL); |
| 3199 | vtctl |= adapter->vfs_allocated_count << |
| 3200 | E1000_VT_CTL_DEFAULT_POOL_SHIFT; |
| 3201 | wr32(E1000_VT_CTL, vtctl); |
| 3202 | } |
Alexander Duyck | a99955f | 2009-11-12 18:37:19 +0000 | [diff] [blame] | 3203 | if (adapter->rss_queues > 1) |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 3204 | mrqc |= E1000_MRQC_ENABLE_VMDQ_RSS_2Q; |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3205 | else |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 3206 | mrqc |= E1000_MRQC_ENABLE_VMDQ; |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3207 | } else { |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 3208 | if (hw->mac.type != e1000_i211) |
| 3209 | mrqc |= E1000_MRQC_ENABLE_RSS_4Q; |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3210 | } |
| 3211 | igb_vmm_control(adapter); |
| 3212 | |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3213 | wr32(E1000_MRQC, mrqc); |
| 3214 | } |
| 3215 | |
| 3216 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3217 | * igb_setup_rctl - configure the receive control registers |
| 3218 | * @adapter: Board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3219 | **/ |
Alexander Duyck | d7ee5b3 | 2009-10-27 15:54:23 +0000 | [diff] [blame] | 3220 | void igb_setup_rctl(struct igb_adapter *adapter) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3221 | { |
| 3222 | struct e1000_hw *hw = &adapter->hw; |
| 3223 | u32 rctl; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3224 | |
| 3225 | rctl = rd32(E1000_RCTL); |
| 3226 | |
| 3227 | rctl &= ~(3 << E1000_RCTL_MO_SHIFT); |
Alexander Duyck | 69d728b | 2008-11-25 01:04:03 -0800 | [diff] [blame] | 3228 | rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3229 | |
Alexander Duyck | 69d728b | 2008-11-25 01:04:03 -0800 | [diff] [blame] | 3230 | rctl |= E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_RDMTS_HALF | |
Alexander Duyck | 28b0759 | 2009-02-06 23:20:31 +0000 | [diff] [blame] | 3231 | (hw->mac.mc_filter_type << E1000_RCTL_MO_SHIFT); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3232 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3233 | /* enable stripping of CRC. It's unlikely this will break BMC |
Auke Kok | 87cb7e8 | 2008-07-08 15:08:29 -0700 | [diff] [blame] | 3234 | * redirection as it did with e1000. Newer features require |
| 3235 | * that the HW strips the CRC. |
Alexander Duyck | 73cd78f | 2009-02-12 18:16:59 +0000 | [diff] [blame] | 3236 | */ |
Auke Kok | 87cb7e8 | 2008-07-08 15:08:29 -0700 | [diff] [blame] | 3237 | rctl |= E1000_RCTL_SECRC; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3238 | |
Alexander Duyck | 559e9c4 | 2009-10-27 23:52:50 +0000 | [diff] [blame] | 3239 | /* disable store bad packets and clear size bits. */ |
Alexander Duyck | ec54d7d | 2009-01-31 00:52:57 -0800 | [diff] [blame] | 3240 | rctl &= ~(E1000_RCTL_SBP | E1000_RCTL_SZ_256); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3241 | |
Alexander Duyck | 6ec43fe | 2009-10-27 15:50:48 +0000 | [diff] [blame] | 3242 | /* enable LPE to prevent packets larger than max_frame_size */ |
| 3243 | rctl |= E1000_RCTL_LPE; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3244 | |
Alexander Duyck | 952f72a | 2009-10-27 15:51:07 +0000 | [diff] [blame] | 3245 | /* disable queue 0 to prevent tail write w/o re-config */ |
| 3246 | wr32(E1000_RXDCTL(0), 0); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3247 | |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 3248 | /* Attention!!! For SR-IOV PF driver operations you must enable |
| 3249 | * queue drop for all VF and PF queues to prevent head of line blocking |
| 3250 | * if an un-trusted VF does not provide descriptors to hardware. |
| 3251 | */ |
| 3252 | if (adapter->vfs_allocated_count) { |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 3253 | /* set all queue drop enable bits */ |
| 3254 | wr32(E1000_QDE, ALL_QUEUES); |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 3255 | } |
| 3256 | |
Ben Greear | 89eaefb | 2012-03-06 09:41:58 +0000 | [diff] [blame] | 3257 | /* This is useful for sniffing bad packets. */ |
| 3258 | if (adapter->netdev->features & NETIF_F_RXALL) { |
| 3259 | /* UPE and MPE will be handled by normal PROMISC logic |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3260 | * in e1000e_set_rx_mode |
| 3261 | */ |
Ben Greear | 89eaefb | 2012-03-06 09:41:58 +0000 | [diff] [blame] | 3262 | rctl |= (E1000_RCTL_SBP | /* Receive bad packets */ |
| 3263 | E1000_RCTL_BAM | /* RX All Bcast Pkts */ |
| 3264 | E1000_RCTL_PMCF); /* RX All MAC Ctrl Pkts */ |
| 3265 | |
| 3266 | rctl &= ~(E1000_RCTL_VFE | /* Disable VLAN filter */ |
| 3267 | E1000_RCTL_DPF | /* Allow filtered pause */ |
| 3268 | E1000_RCTL_CFIEN); /* Dis VLAN CFIEN Filter */ |
| 3269 | /* Do not mess with E1000_CTRL_VME, it affects transmit as well, |
| 3270 | * and that breaks VLANs. |
| 3271 | */ |
| 3272 | } |
| 3273 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3274 | wr32(E1000_RCTL, rctl); |
| 3275 | } |
| 3276 | |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 3277 | static inline int igb_set_vf_rlpml(struct igb_adapter *adapter, int size, |
| 3278 | int vfn) |
| 3279 | { |
| 3280 | struct e1000_hw *hw = &adapter->hw; |
| 3281 | u32 vmolr; |
| 3282 | |
| 3283 | /* if it isn't the PF check to see if VFs are enabled and |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3284 | * increase the size to support vlan tags |
| 3285 | */ |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 3286 | if (vfn < adapter->vfs_allocated_count && |
| 3287 | adapter->vf_data[vfn].vlans_enabled) |
| 3288 | size += VLAN_TAG_SIZE; |
| 3289 | |
| 3290 | vmolr = rd32(E1000_VMOLR(vfn)); |
| 3291 | vmolr &= ~E1000_VMOLR_RLPML_MASK; |
| 3292 | vmolr |= size | E1000_VMOLR_LPE; |
| 3293 | wr32(E1000_VMOLR(vfn), vmolr); |
| 3294 | |
| 3295 | return 0; |
| 3296 | } |
| 3297 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3298 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3299 | * igb_rlpml_set - set maximum receive packet size |
| 3300 | * @adapter: board private structure |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 3301 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3302 | * Configure maximum receivable packet size. |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 3303 | **/ |
| 3304 | static void igb_rlpml_set(struct igb_adapter *adapter) |
| 3305 | { |
Alexander Duyck | 153285f | 2011-08-26 07:43:32 +0000 | [diff] [blame] | 3306 | u32 max_frame_size = adapter->max_frame_size; |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 3307 | struct e1000_hw *hw = &adapter->hw; |
| 3308 | u16 pf_id = adapter->vfs_allocated_count; |
| 3309 | |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 3310 | if (pf_id) { |
| 3311 | igb_set_vf_rlpml(adapter, max_frame_size, pf_id); |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3312 | /* If we're in VMDQ or SR-IOV mode, then set global RLPML |
Alexander Duyck | 153285f | 2011-08-26 07:43:32 +0000 | [diff] [blame] | 3313 | * to our max jumbo frame size, in case we need to enable |
| 3314 | * jumbo frames on one of the rings later. |
| 3315 | * This will not pass over-length frames into the default |
| 3316 | * queue because it's gated by the VMOLR.RLPML. |
| 3317 | */ |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 3318 | max_frame_size = MAX_JUMBO_FRAME_SIZE; |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 3319 | } |
| 3320 | |
| 3321 | wr32(E1000_RLPML, max_frame_size); |
| 3322 | } |
| 3323 | |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 3324 | static inline void igb_set_vmolr(struct igb_adapter *adapter, |
| 3325 | int vfn, bool aupe) |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 3326 | { |
| 3327 | struct e1000_hw *hw = &adapter->hw; |
| 3328 | u32 vmolr; |
| 3329 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3330 | /* This register exists only on 82576 and newer so if we are older then |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 3331 | * we should exit and do nothing |
| 3332 | */ |
| 3333 | if (hw->mac.type < e1000_82576) |
| 3334 | return; |
| 3335 | |
| 3336 | vmolr = rd32(E1000_VMOLR(vfn)); |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3337 | vmolr |= E1000_VMOLR_STRVLAN; /* Strip vlan tags */ |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 3338 | if (aupe) |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3339 | vmolr |= E1000_VMOLR_AUPE; /* Accept untagged packets */ |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 3340 | else |
| 3341 | vmolr &= ~(E1000_VMOLR_AUPE); /* Tagged packets ONLY */ |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 3342 | |
| 3343 | /* clear all bits that might not be set */ |
| 3344 | vmolr &= ~(E1000_VMOLR_BAM | E1000_VMOLR_RSSE); |
| 3345 | |
Alexander Duyck | a99955f | 2009-11-12 18:37:19 +0000 | [diff] [blame] | 3346 | if (adapter->rss_queues > 1 && vfn == adapter->vfs_allocated_count) |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 3347 | vmolr |= E1000_VMOLR_RSSE; /* enable RSS */ |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3348 | /* for VMDq only allow the VFs and pool 0 to accept broadcast and |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 3349 | * multicast packets |
| 3350 | */ |
| 3351 | if (vfn <= adapter->vfs_allocated_count) |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3352 | vmolr |= E1000_VMOLR_BAM; /* Accept broadcast */ |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 3353 | |
| 3354 | wr32(E1000_VMOLR(vfn), vmolr); |
| 3355 | } |
| 3356 | |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 3357 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3358 | * igb_configure_rx_ring - Configure a receive ring after Reset |
| 3359 | * @adapter: board private structure |
| 3360 | * @ring: receive ring to be configured |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3361 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3362 | * Configure the Rx unit of the MAC after a reset. |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3363 | **/ |
Alexander Duyck | d7ee5b3 | 2009-10-27 15:54:23 +0000 | [diff] [blame] | 3364 | void igb_configure_rx_ring(struct igb_adapter *adapter, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3365 | struct igb_ring *ring) |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3366 | { |
| 3367 | struct e1000_hw *hw = &adapter->hw; |
| 3368 | u64 rdba = ring->dma; |
| 3369 | int reg_idx = ring->reg_idx; |
Alexander Duyck | a74420e | 2011-08-26 07:43:27 +0000 | [diff] [blame] | 3370 | u32 srrctl = 0, rxdctl = 0; |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3371 | |
| 3372 | /* disable the queue */ |
Alexander Duyck | a74420e | 2011-08-26 07:43:27 +0000 | [diff] [blame] | 3373 | wr32(E1000_RXDCTL(reg_idx), 0); |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3374 | |
| 3375 | /* Set DMA base address registers */ |
| 3376 | wr32(E1000_RDBAL(reg_idx), |
| 3377 | rdba & 0x00000000ffffffffULL); |
| 3378 | wr32(E1000_RDBAH(reg_idx), rdba >> 32); |
| 3379 | wr32(E1000_RDLEN(reg_idx), |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3380 | ring->count * sizeof(union e1000_adv_rx_desc)); |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3381 | |
| 3382 | /* initialize head and tail */ |
Alexander Duyck | fce99e3 | 2009-10-27 15:51:27 +0000 | [diff] [blame] | 3383 | ring->tail = hw->hw_addr + E1000_RDT(reg_idx); |
Alexander Duyck | a74420e | 2011-08-26 07:43:27 +0000 | [diff] [blame] | 3384 | wr32(E1000_RDH(reg_idx), 0); |
Alexander Duyck | fce99e3 | 2009-10-27 15:51:27 +0000 | [diff] [blame] | 3385 | writel(0, ring->tail); |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3386 | |
Alexander Duyck | 952f72a | 2009-10-27 15:51:07 +0000 | [diff] [blame] | 3387 | /* set descriptor configuration */ |
Alexander Duyck | 44390ca | 2011-08-26 07:43:38 +0000 | [diff] [blame] | 3388 | srrctl = IGB_RX_HDR_LEN << E1000_SRRCTL_BSIZEHDRSIZE_SHIFT; |
Alexander Duyck | de78d1f | 2012-09-25 00:31:12 +0000 | [diff] [blame] | 3389 | srrctl |= IGB_RX_BUFSZ >> E1000_SRRCTL_BSIZEPKT_SHIFT; |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 3390 | srrctl |= E1000_SRRCTL_DESCTYPE_ADV_ONEBUF; |
Alexander Duyck | 06218a8 | 2011-08-26 07:46:55 +0000 | [diff] [blame] | 3391 | if (hw->mac.type >= e1000_82580) |
Nick Nunley | 757b77e | 2010-03-26 11:36:47 +0000 | [diff] [blame] | 3392 | srrctl |= E1000_SRRCTL_TIMESTAMP; |
Nick Nunley | e6bdb6f | 2010-02-17 01:03:38 +0000 | [diff] [blame] | 3393 | /* Only set Drop Enable if we are supporting multiple queues */ |
| 3394 | if (adapter->vfs_allocated_count || adapter->num_rx_queues > 1) |
| 3395 | srrctl |= E1000_SRRCTL_DROP_EN; |
Alexander Duyck | 952f72a | 2009-10-27 15:51:07 +0000 | [diff] [blame] | 3396 | |
| 3397 | wr32(E1000_SRRCTL(reg_idx), srrctl); |
| 3398 | |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 3399 | /* set filtering for VMDQ pools */ |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 3400 | igb_set_vmolr(adapter, reg_idx & 0x7, true); |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 3401 | |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3402 | rxdctl |= IGB_RX_PTHRESH; |
| 3403 | rxdctl |= IGB_RX_HTHRESH << 8; |
| 3404 | rxdctl |= IGB_RX_WTHRESH << 16; |
Alexander Duyck | a74420e | 2011-08-26 07:43:27 +0000 | [diff] [blame] | 3405 | |
| 3406 | /* enable receive descriptor fetching */ |
| 3407 | rxdctl |= E1000_RXDCTL_QUEUE_ENABLE; |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 3408 | wr32(E1000_RXDCTL(reg_idx), rxdctl); |
| 3409 | } |
| 3410 | |
| 3411 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3412 | * igb_configure_rx - Configure receive Unit after Reset |
| 3413 | * @adapter: board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3414 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3415 | * Configure the Rx unit of the MAC after a reset. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3416 | **/ |
| 3417 | static void igb_configure_rx(struct igb_adapter *adapter) |
| 3418 | { |
Hannes Eder | 9107584 | 2009-02-18 19:36:04 -0800 | [diff] [blame] | 3419 | int i; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3420 | |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3421 | /* set UTA to appropriate mode */ |
| 3422 | igb_set_uta(adapter); |
| 3423 | |
Alexander Duyck | 26ad917 | 2009-10-05 06:32:49 +0000 | [diff] [blame] | 3424 | /* set the correct pool for the PF default MAC address in entry 0 */ |
| 3425 | igb_rar_set_qsel(adapter, adapter->hw.mac.addr, 0, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3426 | adapter->vfs_allocated_count); |
Alexander Duyck | 26ad917 | 2009-10-05 06:32:49 +0000 | [diff] [blame] | 3427 | |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 3428 | /* Setup the HW Rx Head and Tail Descriptor Pointers and |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3429 | * the Base and Length of the Rx Descriptor Ring |
| 3430 | */ |
Alexander Duyck | f9d40f6 | 2013-04-17 20:41:04 +0000 | [diff] [blame] | 3431 | for (i = 0; i < adapter->num_rx_queues; i++) |
| 3432 | igb_configure_rx_ring(adapter, adapter->rx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3433 | } |
| 3434 | |
| 3435 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3436 | * igb_free_tx_resources - Free Tx Resources per Queue |
| 3437 | * @tx_ring: Tx descriptor ring for a specific queue |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3438 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3439 | * Free all transmit software resources |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3440 | **/ |
Alexander Duyck | 68fd991 | 2008-11-20 00:48:10 -0800 | [diff] [blame] | 3441 | void igb_free_tx_resources(struct igb_ring *tx_ring) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3442 | { |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 3443 | igb_clean_tx_ring(tx_ring); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3444 | |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 3445 | vfree(tx_ring->tx_buffer_info); |
| 3446 | tx_ring->tx_buffer_info = NULL; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3447 | |
Alexander Duyck | 439705e | 2009-10-27 23:49:20 +0000 | [diff] [blame] | 3448 | /* if not set, then don't free */ |
| 3449 | if (!tx_ring->desc) |
| 3450 | return; |
| 3451 | |
Alexander Duyck | 59d7198 | 2010-04-27 13:09:25 +0000 | [diff] [blame] | 3452 | dma_free_coherent(tx_ring->dev, tx_ring->size, |
| 3453 | tx_ring->desc, tx_ring->dma); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3454 | |
| 3455 | tx_ring->desc = NULL; |
| 3456 | } |
| 3457 | |
| 3458 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3459 | * igb_free_all_tx_resources - Free Tx Resources for All Queues |
| 3460 | * @adapter: board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3461 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3462 | * Free all transmit software resources |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3463 | **/ |
| 3464 | static void igb_free_all_tx_resources(struct igb_adapter *adapter) |
| 3465 | { |
| 3466 | int i; |
| 3467 | |
| 3468 | for (i = 0; i < adapter->num_tx_queues; i++) |
Alexander Duyck | 3025a44 | 2010-02-17 01:02:39 +0000 | [diff] [blame] | 3469 | igb_free_tx_resources(adapter->tx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3470 | } |
| 3471 | |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 3472 | void igb_unmap_and_free_tx_resource(struct igb_ring *ring, |
| 3473 | struct igb_tx_buffer *tx_buffer) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3474 | { |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 3475 | if (tx_buffer->skb) { |
| 3476 | dev_kfree_skb_any(tx_buffer->skb); |
Alexander Duyck | c9f14bf3 | 2012-09-18 01:56:27 +0000 | [diff] [blame] | 3477 | if (dma_unmap_len(tx_buffer, len)) |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 3478 | dma_unmap_single(ring->dev, |
Alexander Duyck | c9f14bf3 | 2012-09-18 01:56:27 +0000 | [diff] [blame] | 3479 | dma_unmap_addr(tx_buffer, dma), |
| 3480 | dma_unmap_len(tx_buffer, len), |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 3481 | DMA_TO_DEVICE); |
Alexander Duyck | c9f14bf3 | 2012-09-18 01:56:27 +0000 | [diff] [blame] | 3482 | } else if (dma_unmap_len(tx_buffer, len)) { |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 3483 | dma_unmap_page(ring->dev, |
Alexander Duyck | c9f14bf3 | 2012-09-18 01:56:27 +0000 | [diff] [blame] | 3484 | dma_unmap_addr(tx_buffer, dma), |
| 3485 | dma_unmap_len(tx_buffer, len), |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 3486 | DMA_TO_DEVICE); |
Alexander Duyck | 6366ad3 | 2009-12-02 16:47:18 +0000 | [diff] [blame] | 3487 | } |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 3488 | tx_buffer->next_to_watch = NULL; |
| 3489 | tx_buffer->skb = NULL; |
Alexander Duyck | c9f14bf3 | 2012-09-18 01:56:27 +0000 | [diff] [blame] | 3490 | dma_unmap_len_set(tx_buffer, len, 0); |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 3491 | /* buffer_info must be completely set up in the transmit path */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3492 | } |
| 3493 | |
| 3494 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3495 | * igb_clean_tx_ring - Free Tx Buffers |
| 3496 | * @tx_ring: ring to be cleaned |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3497 | **/ |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 3498 | static void igb_clean_tx_ring(struct igb_ring *tx_ring) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3499 | { |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 3500 | struct igb_tx_buffer *buffer_info; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3501 | unsigned long size; |
Alexander Duyck | 6ad4edf | 2011-08-26 07:45:26 +0000 | [diff] [blame] | 3502 | u16 i; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3503 | |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 3504 | if (!tx_ring->tx_buffer_info) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3505 | return; |
| 3506 | /* Free all the Tx ring sk_buffs */ |
| 3507 | |
| 3508 | for (i = 0; i < tx_ring->count; i++) { |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 3509 | buffer_info = &tx_ring->tx_buffer_info[i]; |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 3510 | igb_unmap_and_free_tx_resource(tx_ring, buffer_info); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3511 | } |
| 3512 | |
John Fastabend | dad8a3b | 2012-04-23 12:22:39 +0000 | [diff] [blame] | 3513 | netdev_tx_reset_queue(txring_txq(tx_ring)); |
| 3514 | |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 3515 | size = sizeof(struct igb_tx_buffer) * tx_ring->count; |
| 3516 | memset(tx_ring->tx_buffer_info, 0, size); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3517 | |
| 3518 | /* Zero out the descriptor ring */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3519 | memset(tx_ring->desc, 0, tx_ring->size); |
| 3520 | |
| 3521 | tx_ring->next_to_use = 0; |
| 3522 | tx_ring->next_to_clean = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3523 | } |
| 3524 | |
| 3525 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3526 | * igb_clean_all_tx_rings - Free Tx Buffers for all queues |
| 3527 | * @adapter: board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3528 | **/ |
| 3529 | static void igb_clean_all_tx_rings(struct igb_adapter *adapter) |
| 3530 | { |
| 3531 | int i; |
| 3532 | |
| 3533 | for (i = 0; i < adapter->num_tx_queues; i++) |
Alexander Duyck | 3025a44 | 2010-02-17 01:02:39 +0000 | [diff] [blame] | 3534 | igb_clean_tx_ring(adapter->tx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3535 | } |
| 3536 | |
| 3537 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3538 | * igb_free_rx_resources - Free Rx Resources |
| 3539 | * @rx_ring: ring to clean the resources from |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3540 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3541 | * Free all receive software resources |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3542 | **/ |
Alexander Duyck | 68fd991 | 2008-11-20 00:48:10 -0800 | [diff] [blame] | 3543 | void igb_free_rx_resources(struct igb_ring *rx_ring) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3544 | { |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 3545 | igb_clean_rx_ring(rx_ring); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3546 | |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 3547 | vfree(rx_ring->rx_buffer_info); |
| 3548 | rx_ring->rx_buffer_info = NULL; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3549 | |
Alexander Duyck | 439705e | 2009-10-27 23:49:20 +0000 | [diff] [blame] | 3550 | /* if not set, then don't free */ |
| 3551 | if (!rx_ring->desc) |
| 3552 | return; |
| 3553 | |
Alexander Duyck | 59d7198 | 2010-04-27 13:09:25 +0000 | [diff] [blame] | 3554 | dma_free_coherent(rx_ring->dev, rx_ring->size, |
| 3555 | rx_ring->desc, rx_ring->dma); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3556 | |
| 3557 | rx_ring->desc = NULL; |
| 3558 | } |
| 3559 | |
| 3560 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3561 | * igb_free_all_rx_resources - Free Rx Resources for All Queues |
| 3562 | * @adapter: board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3563 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3564 | * Free all receive software resources |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3565 | **/ |
| 3566 | static void igb_free_all_rx_resources(struct igb_adapter *adapter) |
| 3567 | { |
| 3568 | int i; |
| 3569 | |
| 3570 | for (i = 0; i < adapter->num_rx_queues; i++) |
Alexander Duyck | 3025a44 | 2010-02-17 01:02:39 +0000 | [diff] [blame] | 3571 | igb_free_rx_resources(adapter->rx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3572 | } |
| 3573 | |
| 3574 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3575 | * igb_clean_rx_ring - Free Rx Buffers per Queue |
| 3576 | * @rx_ring: ring to free buffers from |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3577 | **/ |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 3578 | static void igb_clean_rx_ring(struct igb_ring *rx_ring) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3579 | { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3580 | unsigned long size; |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 3581 | u16 i; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3582 | |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 3583 | if (rx_ring->skb) |
| 3584 | dev_kfree_skb(rx_ring->skb); |
| 3585 | rx_ring->skb = NULL; |
| 3586 | |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 3587 | if (!rx_ring->rx_buffer_info) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3588 | return; |
Alexander Duyck | 439705e | 2009-10-27 23:49:20 +0000 | [diff] [blame] | 3589 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3590 | /* Free all the Rx ring sk_buffs */ |
| 3591 | for (i = 0; i < rx_ring->count; i++) { |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 3592 | struct igb_rx_buffer *buffer_info = &rx_ring->rx_buffer_info[i]; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3593 | |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 3594 | if (!buffer_info->page) |
| 3595 | continue; |
| 3596 | |
| 3597 | dma_unmap_page(rx_ring->dev, |
| 3598 | buffer_info->dma, |
| 3599 | PAGE_SIZE, |
| 3600 | DMA_FROM_DEVICE); |
| 3601 | __free_page(buffer_info->page); |
| 3602 | |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 3603 | buffer_info->page = NULL; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3604 | } |
| 3605 | |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 3606 | size = sizeof(struct igb_rx_buffer) * rx_ring->count; |
| 3607 | memset(rx_ring->rx_buffer_info, 0, size); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3608 | |
| 3609 | /* Zero out the descriptor ring */ |
| 3610 | memset(rx_ring->desc, 0, rx_ring->size); |
| 3611 | |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 3612 | rx_ring->next_to_alloc = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3613 | rx_ring->next_to_clean = 0; |
| 3614 | rx_ring->next_to_use = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3615 | } |
| 3616 | |
| 3617 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3618 | * igb_clean_all_rx_rings - Free Rx Buffers for all queues |
| 3619 | * @adapter: board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3620 | **/ |
| 3621 | static void igb_clean_all_rx_rings(struct igb_adapter *adapter) |
| 3622 | { |
| 3623 | int i; |
| 3624 | |
| 3625 | for (i = 0; i < adapter->num_rx_queues; i++) |
Alexander Duyck | 3025a44 | 2010-02-17 01:02:39 +0000 | [diff] [blame] | 3626 | igb_clean_rx_ring(adapter->rx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3627 | } |
| 3628 | |
| 3629 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3630 | * igb_set_mac - Change the Ethernet Address of the NIC |
| 3631 | * @netdev: network interface device structure |
| 3632 | * @p: pointer to an address structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3633 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3634 | * Returns 0 on success, negative on failure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3635 | **/ |
| 3636 | static int igb_set_mac(struct net_device *netdev, void *p) |
| 3637 | { |
| 3638 | struct igb_adapter *adapter = netdev_priv(netdev); |
Alexander Duyck | 28b0759 | 2009-02-06 23:20:31 +0000 | [diff] [blame] | 3639 | struct e1000_hw *hw = &adapter->hw; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3640 | struct sockaddr *addr = p; |
| 3641 | |
| 3642 | if (!is_valid_ether_addr(addr->sa_data)) |
| 3643 | return -EADDRNOTAVAIL; |
| 3644 | |
| 3645 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
Alexander Duyck | 28b0759 | 2009-02-06 23:20:31 +0000 | [diff] [blame] | 3646 | memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3647 | |
Alexander Duyck | 26ad917 | 2009-10-05 06:32:49 +0000 | [diff] [blame] | 3648 | /* set the correct pool for the new PF MAC address in entry 0 */ |
| 3649 | igb_rar_set_qsel(adapter, hw->mac.addr, 0, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3650 | adapter->vfs_allocated_count); |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 3651 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3652 | return 0; |
| 3653 | } |
| 3654 | |
| 3655 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3656 | * igb_write_mc_addr_list - write multicast addresses to MTA |
| 3657 | * @netdev: network interface device structure |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3658 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3659 | * Writes multicast address list to the MTA hash table. |
| 3660 | * Returns: -ENOMEM on failure |
| 3661 | * 0 on no addresses written |
| 3662 | * X on writing X addresses to MTA |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3663 | **/ |
| 3664 | static int igb_write_mc_addr_list(struct net_device *netdev) |
| 3665 | { |
| 3666 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 3667 | struct e1000_hw *hw = &adapter->hw; |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 3668 | struct netdev_hw_addr *ha; |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3669 | u8 *mta_list; |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3670 | int i; |
| 3671 | |
Jiri Pirko | 4cd24ea | 2010-02-08 04:30:35 +0000 | [diff] [blame] | 3672 | if (netdev_mc_empty(netdev)) { |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3673 | /* nothing to program, so clear mc list */ |
| 3674 | igb_update_mc_addr_list(hw, NULL, 0); |
| 3675 | igb_restore_vf_multicasts(adapter); |
| 3676 | return 0; |
| 3677 | } |
| 3678 | |
Jiri Pirko | 4cd24ea | 2010-02-08 04:30:35 +0000 | [diff] [blame] | 3679 | mta_list = kzalloc(netdev_mc_count(netdev) * 6, GFP_ATOMIC); |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3680 | if (!mta_list) |
| 3681 | return -ENOMEM; |
| 3682 | |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3683 | /* The shared function expects a packed array of only addresses. */ |
Jiri Pirko | 48e2f18 | 2010-02-22 09:22:26 +0000 | [diff] [blame] | 3684 | i = 0; |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 3685 | netdev_for_each_mc_addr(ha, netdev) |
| 3686 | memcpy(mta_list + (i++ * ETH_ALEN), ha->addr, ETH_ALEN); |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3687 | |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3688 | igb_update_mc_addr_list(hw, mta_list, i); |
| 3689 | kfree(mta_list); |
| 3690 | |
Jiri Pirko | 4cd24ea | 2010-02-08 04:30:35 +0000 | [diff] [blame] | 3691 | return netdev_mc_count(netdev); |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3692 | } |
| 3693 | |
| 3694 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3695 | * igb_write_uc_addr_list - write unicast addresses to RAR table |
| 3696 | * @netdev: network interface device structure |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3697 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3698 | * Writes unicast address list to the RAR table. |
| 3699 | * Returns: -ENOMEM on failure/insufficient address space |
| 3700 | * 0 on no addresses written |
| 3701 | * X on writing X addresses to the RAR table |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3702 | **/ |
| 3703 | static int igb_write_uc_addr_list(struct net_device *netdev) |
| 3704 | { |
| 3705 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 3706 | struct e1000_hw *hw = &adapter->hw; |
| 3707 | unsigned int vfn = adapter->vfs_allocated_count; |
| 3708 | unsigned int rar_entries = hw->mac.rar_entry_count - (vfn + 1); |
| 3709 | int count = 0; |
| 3710 | |
| 3711 | /* return ENOMEM indicating insufficient memory for addresses */ |
Jiri Pirko | 32e7bfc | 2010-01-25 13:36:10 -0800 | [diff] [blame] | 3712 | if (netdev_uc_count(netdev) > rar_entries) |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3713 | return -ENOMEM; |
| 3714 | |
Jiri Pirko | 32e7bfc | 2010-01-25 13:36:10 -0800 | [diff] [blame] | 3715 | if (!netdev_uc_empty(netdev) && rar_entries) { |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3716 | struct netdev_hw_addr *ha; |
Jiri Pirko | 32e7bfc | 2010-01-25 13:36:10 -0800 | [diff] [blame] | 3717 | |
| 3718 | netdev_for_each_uc_addr(ha, netdev) { |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3719 | if (!rar_entries) |
| 3720 | break; |
| 3721 | igb_rar_set_qsel(adapter, ha->addr, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3722 | rar_entries--, |
| 3723 | vfn); |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3724 | count++; |
| 3725 | } |
| 3726 | } |
| 3727 | /* write the addresses in reverse order to avoid write combining */ |
| 3728 | for (; rar_entries > 0 ; rar_entries--) { |
| 3729 | wr32(E1000_RAH(rar_entries), 0); |
| 3730 | wr32(E1000_RAL(rar_entries), 0); |
| 3731 | } |
| 3732 | wrfl(); |
| 3733 | |
| 3734 | return count; |
| 3735 | } |
| 3736 | |
| 3737 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3738 | * igb_set_rx_mode - Secondary Unicast, Multicast and Promiscuous mode set |
| 3739 | * @netdev: network interface device structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3740 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3741 | * The set_rx_mode entry point is called whenever the unicast or multicast |
| 3742 | * address lists or the network interface flags are updated. This routine is |
| 3743 | * responsible for configuring the hardware for proper unicast, multicast, |
| 3744 | * promiscuous mode, and all-multi behavior. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3745 | **/ |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 3746 | static void igb_set_rx_mode(struct net_device *netdev) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3747 | { |
| 3748 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 3749 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3750 | unsigned int vfn = adapter->vfs_allocated_count; |
| 3751 | u32 rctl, vmolr = 0; |
| 3752 | int count; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3753 | |
| 3754 | /* Check for Promiscuous and All Multicast modes */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3755 | rctl = rd32(E1000_RCTL); |
| 3756 | |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3757 | /* clear the effected bits */ |
| 3758 | rctl &= ~(E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_VFE); |
| 3759 | |
Patrick McHardy | 746b9f0 | 2008-07-16 20:15:45 -0700 | [diff] [blame] | 3760 | if (netdev->flags & IFF_PROMISC) { |
Greg Rose | 6f3dc319 | 2013-03-26 06:19:41 +0000 | [diff] [blame] | 3761 | /* retain VLAN HW filtering if in VT mode */ |
Emil Tantilov | 7e44892 | 2013-07-26 05:46:36 -0700 | [diff] [blame] | 3762 | if (adapter->vfs_allocated_count) |
Greg Rose | 6f3dc319 | 2013-03-26 06:19:41 +0000 | [diff] [blame] | 3763 | rctl |= E1000_RCTL_VFE; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3764 | rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE); |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3765 | vmolr |= (E1000_VMOLR_ROPE | E1000_VMOLR_MPME); |
Patrick McHardy | 746b9f0 | 2008-07-16 20:15:45 -0700 | [diff] [blame] | 3766 | } else { |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3767 | if (netdev->flags & IFF_ALLMULTI) { |
Patrick McHardy | 746b9f0 | 2008-07-16 20:15:45 -0700 | [diff] [blame] | 3768 | rctl |= E1000_RCTL_MPE; |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3769 | vmolr |= E1000_VMOLR_MPME; |
| 3770 | } else { |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3771 | /* Write addresses to the MTA, if the attempt fails |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 3772 | * then we should just turn on promiscuous mode so |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3773 | * that we can at least receive multicast traffic |
| 3774 | */ |
| 3775 | count = igb_write_mc_addr_list(netdev); |
| 3776 | if (count < 0) { |
| 3777 | rctl |= E1000_RCTL_MPE; |
| 3778 | vmolr |= E1000_VMOLR_MPME; |
| 3779 | } else if (count) { |
| 3780 | vmolr |= E1000_VMOLR_ROMPE; |
| 3781 | } |
| 3782 | } |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3783 | /* Write addresses to available RAR registers, if there is not |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3784 | * sufficient space to store all the addresses then enable |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 3785 | * unicast promiscuous mode |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3786 | */ |
| 3787 | count = igb_write_uc_addr_list(netdev); |
| 3788 | if (count < 0) { |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 3789 | rctl |= E1000_RCTL_UPE; |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3790 | vmolr |= E1000_VMOLR_ROPE; |
| 3791 | } |
Patrick McHardy | 78ed11a | 2008-07-16 20:16:14 -0700 | [diff] [blame] | 3792 | rctl |= E1000_RCTL_VFE; |
Patrick McHardy | 746b9f0 | 2008-07-16 20:15:45 -0700 | [diff] [blame] | 3793 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3794 | wr32(E1000_RCTL, rctl); |
| 3795 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3796 | /* In order to support SR-IOV and eventually VMDq it is necessary to set |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3797 | * the VMOLR to enable the appropriate modes. Without this workaround |
| 3798 | * we will have issues with VLAN tag stripping not being done for frames |
| 3799 | * that are only arriving because we are the default pool |
| 3800 | */ |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 3801 | if ((hw->mac.type < e1000_82576) || (hw->mac.type > e1000_i350)) |
Alexander Duyck | 28fc06f | 2009-07-23 18:08:54 +0000 | [diff] [blame] | 3802 | return; |
Alexander Duyck | 28fc06f | 2009-07-23 18:08:54 +0000 | [diff] [blame] | 3803 | |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3804 | vmolr |= rd32(E1000_VMOLR(vfn)) & |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3805 | ~(E1000_VMOLR_ROPE | E1000_VMOLR_MPME | E1000_VMOLR_ROMPE); |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 3806 | wr32(E1000_VMOLR(vfn), vmolr); |
Alexander Duyck | 28fc06f | 2009-07-23 18:08:54 +0000 | [diff] [blame] | 3807 | igb_restore_vf_multicasts(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3808 | } |
| 3809 | |
Greg Rose | 1380046 | 2010-11-06 02:08:26 +0000 | [diff] [blame] | 3810 | static void igb_check_wvbr(struct igb_adapter *adapter) |
| 3811 | { |
| 3812 | struct e1000_hw *hw = &adapter->hw; |
| 3813 | u32 wvbr = 0; |
| 3814 | |
| 3815 | switch (hw->mac.type) { |
| 3816 | case e1000_82576: |
| 3817 | case e1000_i350: |
| 3818 | if (!(wvbr = rd32(E1000_WVBR))) |
| 3819 | return; |
| 3820 | break; |
| 3821 | default: |
| 3822 | break; |
| 3823 | } |
| 3824 | |
| 3825 | adapter->wvbr |= wvbr; |
| 3826 | } |
| 3827 | |
| 3828 | #define IGB_STAGGERED_QUEUE_OFFSET 8 |
| 3829 | |
| 3830 | static void igb_spoof_check(struct igb_adapter *adapter) |
| 3831 | { |
| 3832 | int j; |
| 3833 | |
| 3834 | if (!adapter->wvbr) |
| 3835 | return; |
| 3836 | |
| 3837 | for(j = 0; j < adapter->vfs_allocated_count; j++) { |
| 3838 | if (adapter->wvbr & (1 << j) || |
| 3839 | adapter->wvbr & (1 << (j + IGB_STAGGERED_QUEUE_OFFSET))) { |
| 3840 | dev_warn(&adapter->pdev->dev, |
| 3841 | "Spoof event(s) detected on VF %d\n", j); |
| 3842 | adapter->wvbr &= |
| 3843 | ~((1 << j) | |
| 3844 | (1 << (j + IGB_STAGGERED_QUEUE_OFFSET))); |
| 3845 | } |
| 3846 | } |
| 3847 | } |
| 3848 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3849 | /* Need to wait a few seconds after link up to get diagnostic information from |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3850 | * the phy |
| 3851 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3852 | static void igb_update_phy_info(unsigned long data) |
| 3853 | { |
| 3854 | struct igb_adapter *adapter = (struct igb_adapter *) data; |
Alexander Duyck | f5f4cf0 | 2008-11-21 21:30:24 -0800 | [diff] [blame] | 3855 | igb_get_phy_info(&adapter->hw); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3856 | } |
| 3857 | |
| 3858 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3859 | * igb_has_link - check shared code for link and determine up/down |
| 3860 | * @adapter: pointer to driver private info |
Alexander Duyck | 4d6b725 | 2009-02-06 23:16:24 +0000 | [diff] [blame] | 3861 | **/ |
Nick Nunley | 3145535 | 2010-02-17 01:01:21 +0000 | [diff] [blame] | 3862 | bool igb_has_link(struct igb_adapter *adapter) |
Alexander Duyck | 4d6b725 | 2009-02-06 23:16:24 +0000 | [diff] [blame] | 3863 | { |
| 3864 | struct e1000_hw *hw = &adapter->hw; |
| 3865 | bool link_active = false; |
Alexander Duyck | 4d6b725 | 2009-02-06 23:16:24 +0000 | [diff] [blame] | 3866 | |
| 3867 | /* get_link_status is set on LSC (link status) interrupt or |
| 3868 | * rx sequence error interrupt. get_link_status will stay |
| 3869 | * false until the e1000_check_for_link establishes link |
| 3870 | * for copper adapters ONLY |
| 3871 | */ |
| 3872 | switch (hw->phy.media_type) { |
| 3873 | case e1000_media_type_copper: |
Akeem G Abodunrin | e5c3370 | 2013-06-06 01:31:09 +0000 | [diff] [blame] | 3874 | if (!hw->mac.get_link_status) |
| 3875 | return true; |
Alexander Duyck | 4d6b725 | 2009-02-06 23:16:24 +0000 | [diff] [blame] | 3876 | case e1000_media_type_internal_serdes: |
Akeem G Abodunrin | e5c3370 | 2013-06-06 01:31:09 +0000 | [diff] [blame] | 3877 | hw->mac.ops.check_for_link(hw); |
| 3878 | link_active = !hw->mac.get_link_status; |
Alexander Duyck | 4d6b725 | 2009-02-06 23:16:24 +0000 | [diff] [blame] | 3879 | break; |
| 3880 | default: |
| 3881 | case e1000_media_type_unknown: |
| 3882 | break; |
| 3883 | } |
| 3884 | |
Akeem G Abodunrin | aa9b8cc | 2013-08-28 02:22:43 +0000 | [diff] [blame] | 3885 | if (((hw->mac.type == e1000_i210) || |
| 3886 | (hw->mac.type == e1000_i211)) && |
| 3887 | (hw->phy.id == I210_I_PHY_ID)) { |
| 3888 | if (!netif_carrier_ok(adapter->netdev)) { |
| 3889 | adapter->flags &= ~IGB_FLAG_NEED_LINK_UPDATE; |
| 3890 | } else if (!(adapter->flags & IGB_FLAG_NEED_LINK_UPDATE)) { |
| 3891 | adapter->flags |= IGB_FLAG_NEED_LINK_UPDATE; |
| 3892 | adapter->link_check_timeout = jiffies; |
| 3893 | } |
| 3894 | } |
| 3895 | |
Alexander Duyck | 4d6b725 | 2009-02-06 23:16:24 +0000 | [diff] [blame] | 3896 | return link_active; |
| 3897 | } |
| 3898 | |
Stefan Assmann | 563988d | 2011-04-05 04:27:15 +0000 | [diff] [blame] | 3899 | static bool igb_thermal_sensor_event(struct e1000_hw *hw, u32 event) |
| 3900 | { |
| 3901 | bool ret = false; |
| 3902 | u32 ctrl_ext, thstat; |
| 3903 | |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 3904 | /* check for thermal sensor event on i350 copper only */ |
Stefan Assmann | 563988d | 2011-04-05 04:27:15 +0000 | [diff] [blame] | 3905 | if (hw->mac.type == e1000_i350) { |
| 3906 | thstat = rd32(E1000_THSTAT); |
| 3907 | ctrl_ext = rd32(E1000_CTRL_EXT); |
| 3908 | |
| 3909 | if ((hw->phy.media_type == e1000_media_type_copper) && |
Akeem G. Abodunrin | 5c17a20 | 2013-01-29 10:15:31 +0000 | [diff] [blame] | 3910 | !(ctrl_ext & E1000_CTRL_EXT_LINK_MODE_SGMII)) |
Stefan Assmann | 563988d | 2011-04-05 04:27:15 +0000 | [diff] [blame] | 3911 | ret = !!(thstat & event); |
Stefan Assmann | 563988d | 2011-04-05 04:27:15 +0000 | [diff] [blame] | 3912 | } |
| 3913 | |
| 3914 | return ret; |
| 3915 | } |
| 3916 | |
Alexander Duyck | 4d6b725 | 2009-02-06 23:16:24 +0000 | [diff] [blame] | 3917 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3918 | * igb_watchdog - Timer Call-back |
| 3919 | * @data: pointer to adapter cast into an unsigned long |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3920 | **/ |
| 3921 | static void igb_watchdog(unsigned long data) |
| 3922 | { |
| 3923 | struct igb_adapter *adapter = (struct igb_adapter *)data; |
| 3924 | /* Do the rest outside of interrupt context */ |
| 3925 | schedule_work(&adapter->watchdog_task); |
| 3926 | } |
| 3927 | |
| 3928 | static void igb_watchdog_task(struct work_struct *work) |
| 3929 | { |
| 3930 | struct igb_adapter *adapter = container_of(work, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3931 | struct igb_adapter, |
| 3932 | watchdog_task); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3933 | struct e1000_hw *hw = &adapter->hw; |
Koki Sanagi | c0ba477 | 2013-01-16 11:05:53 +0000 | [diff] [blame] | 3934 | struct e1000_phy_info *phy = &hw->phy; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3935 | struct net_device *netdev = adapter->netdev; |
Stefan Assmann | 563988d | 2011-04-05 04:27:15 +0000 | [diff] [blame] | 3936 | u32 link; |
Alexander Duyck | 7a6ea55 | 2008-08-26 04:25:03 -0700 | [diff] [blame] | 3937 | int i; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3938 | |
Alexander Duyck | 4d6b725 | 2009-02-06 23:16:24 +0000 | [diff] [blame] | 3939 | link = igb_has_link(adapter); |
Akeem G Abodunrin | aa9b8cc | 2013-08-28 02:22:43 +0000 | [diff] [blame] | 3940 | |
| 3941 | if (adapter->flags & IGB_FLAG_NEED_LINK_UPDATE) { |
| 3942 | if (time_after(jiffies, (adapter->link_check_timeout + HZ))) |
| 3943 | adapter->flags &= ~IGB_FLAG_NEED_LINK_UPDATE; |
| 3944 | else |
| 3945 | link = false; |
| 3946 | } |
| 3947 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3948 | if (link) { |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 3949 | /* Cancel scheduled suspend requests. */ |
| 3950 | pm_runtime_resume(netdev->dev.parent); |
| 3951 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3952 | if (!netif_carrier_ok(netdev)) { |
| 3953 | u32 ctrl; |
Alexander Duyck | 330a6d6 | 2009-10-27 23:51:35 +0000 | [diff] [blame] | 3954 | hw->mac.ops.get_speed_and_duplex(hw, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 3955 | &adapter->link_speed, |
| 3956 | &adapter->link_duplex); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3957 | |
| 3958 | ctrl = rd32(E1000_CTRL); |
Alexander Duyck | 527d47c | 2008-11-27 00:21:39 -0800 | [diff] [blame] | 3959 | /* Links status message must follow this format */ |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 3960 | printk(KERN_INFO "igb: %s NIC Link is Up %d Mbps %s " |
| 3961 | "Duplex, Flow Control: %s\n", |
Alexander Duyck | 559e9c4 | 2009-10-27 23:52:50 +0000 | [diff] [blame] | 3962 | netdev->name, |
| 3963 | adapter->link_speed, |
| 3964 | adapter->link_duplex == FULL_DUPLEX ? |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 3965 | "Full" : "Half", |
| 3966 | (ctrl & E1000_CTRL_TFCE) && |
| 3967 | (ctrl & E1000_CTRL_RFCE) ? "RX/TX" : |
| 3968 | (ctrl & E1000_CTRL_RFCE) ? "RX" : |
| 3969 | (ctrl & E1000_CTRL_TFCE) ? "TX" : "None"); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3970 | |
Koki Sanagi | c0ba477 | 2013-01-16 11:05:53 +0000 | [diff] [blame] | 3971 | /* check if SmartSpeed worked */ |
| 3972 | igb_check_downshift(hw); |
| 3973 | if (phy->speed_downgraded) |
| 3974 | netdev_warn(netdev, "Link Speed was downgraded by SmartSpeed\n"); |
| 3975 | |
Stefan Assmann | 563988d | 2011-04-05 04:27:15 +0000 | [diff] [blame] | 3976 | /* check for thermal sensor event */ |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 3977 | if (igb_thermal_sensor_event(hw, |
| 3978 | E1000_THSTAT_LINK_THROTTLE)) { |
| 3979 | netdev_info(netdev, "The network adapter link " |
| 3980 | "speed was downshifted because it " |
| 3981 | "overheated\n"); |
Carolyn Wyborny | 7ef5ed1 | 2011-03-12 08:59:47 +0000 | [diff] [blame] | 3982 | } |
Stefan Assmann | 563988d | 2011-04-05 04:27:15 +0000 | [diff] [blame] | 3983 | |
Emil Tantilov | d07f3e3 | 2010-03-23 18:34:57 +0000 | [diff] [blame] | 3984 | /* adjust timeout factor according to speed/duplex */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3985 | adapter->tx_timeout_factor = 1; |
| 3986 | switch (adapter->link_speed) { |
| 3987 | case SPEED_10: |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3988 | adapter->tx_timeout_factor = 14; |
| 3989 | break; |
| 3990 | case SPEED_100: |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3991 | /* maybe add some timeout factor ? */ |
| 3992 | break; |
| 3993 | } |
| 3994 | |
| 3995 | netif_carrier_on(netdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3996 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 3997 | igb_ping_all_vfs(adapter); |
Lior Levy | 17dc566 | 2011-02-08 02:28:46 +0000 | [diff] [blame] | 3998 | igb_check_vf_rate_limit(adapter); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 3999 | |
Alexander Duyck | 4b1a987 | 2009-02-06 23:19:50 +0000 | [diff] [blame] | 4000 | /* link state has changed, schedule phy info update */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4001 | if (!test_bit(__IGB_DOWN, &adapter->state)) |
| 4002 | mod_timer(&adapter->phy_info_timer, |
| 4003 | round_jiffies(jiffies + 2 * HZ)); |
| 4004 | } |
| 4005 | } else { |
| 4006 | if (netif_carrier_ok(netdev)) { |
| 4007 | adapter->link_speed = 0; |
| 4008 | adapter->link_duplex = 0; |
Stefan Assmann | 563988d | 2011-04-05 04:27:15 +0000 | [diff] [blame] | 4009 | |
| 4010 | /* check for thermal sensor event */ |
Jeff Kirsher | 876d2d6 | 2011-10-21 20:01:34 +0000 | [diff] [blame] | 4011 | if (igb_thermal_sensor_event(hw, |
| 4012 | E1000_THSTAT_PWR_DOWN)) { |
| 4013 | netdev_err(netdev, "The network adapter was " |
| 4014 | "stopped because it overheated\n"); |
Carolyn Wyborny | 7ef5ed1 | 2011-03-12 08:59:47 +0000 | [diff] [blame] | 4015 | } |
Stefan Assmann | 563988d | 2011-04-05 04:27:15 +0000 | [diff] [blame] | 4016 | |
Alexander Duyck | 527d47c | 2008-11-27 00:21:39 -0800 | [diff] [blame] | 4017 | /* Links status message must follow this format */ |
| 4018 | printk(KERN_INFO "igb: %s NIC Link is Down\n", |
| 4019 | netdev->name); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4020 | netif_carrier_off(netdev); |
Alexander Duyck | 4b1a987 | 2009-02-06 23:19:50 +0000 | [diff] [blame] | 4021 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4022 | igb_ping_all_vfs(adapter); |
| 4023 | |
Alexander Duyck | 4b1a987 | 2009-02-06 23:19:50 +0000 | [diff] [blame] | 4024 | /* link state has changed, schedule phy info update */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4025 | if (!test_bit(__IGB_DOWN, &adapter->state)) |
| 4026 | mod_timer(&adapter->phy_info_timer, |
| 4027 | round_jiffies(jiffies + 2 * HZ)); |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 4028 | |
| 4029 | pm_schedule_suspend(netdev->dev.parent, |
| 4030 | MSEC_PER_SEC * 5); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4031 | } |
| 4032 | } |
| 4033 | |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 4034 | spin_lock(&adapter->stats64_lock); |
| 4035 | igb_update_stats(adapter, &adapter->stats64); |
| 4036 | spin_unlock(&adapter->stats64_lock); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4037 | |
Alexander Duyck | dbabb06 | 2009-11-12 18:38:16 +0000 | [diff] [blame] | 4038 | for (i = 0; i < adapter->num_tx_queues; i++) { |
Alexander Duyck | 3025a44 | 2010-02-17 01:02:39 +0000 | [diff] [blame] | 4039 | struct igb_ring *tx_ring = adapter->tx_ring[i]; |
Alexander Duyck | dbabb06 | 2009-11-12 18:38:16 +0000 | [diff] [blame] | 4040 | if (!netif_carrier_ok(netdev)) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4041 | /* We've lost link, so the controller stops DMA, |
| 4042 | * but we've got queued Tx work that's never going |
| 4043 | * to get done, so reset controller to flush Tx. |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4044 | * (Do the reset outside of interrupt context). |
| 4045 | */ |
Alexander Duyck | dbabb06 | 2009-11-12 18:38:16 +0000 | [diff] [blame] | 4046 | if (igb_desc_unused(tx_ring) + 1 < tx_ring->count) { |
| 4047 | adapter->tx_timeout_count++; |
| 4048 | schedule_work(&adapter->reset_task); |
| 4049 | /* return immediately since reset is imminent */ |
| 4050 | return; |
| 4051 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4052 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4053 | |
Alexander Duyck | dbabb06 | 2009-11-12 18:38:16 +0000 | [diff] [blame] | 4054 | /* Force detection of hung controller every watchdog period */ |
Alexander Duyck | 6d095fa | 2011-08-26 07:46:19 +0000 | [diff] [blame] | 4055 | set_bit(IGB_RING_FLAG_TX_DETECT_HANG, &tx_ring->flags); |
Alexander Duyck | dbabb06 | 2009-11-12 18:38:16 +0000 | [diff] [blame] | 4056 | } |
Alexander Duyck | f7ba205 | 2009-10-27 23:48:51 +0000 | [diff] [blame] | 4057 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4058 | /* Cause software interrupt to ensure Rx ring is cleaned */ |
Alexander Duyck | 7a6ea55 | 2008-08-26 04:25:03 -0700 | [diff] [blame] | 4059 | if (adapter->msix_entries) { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4060 | u32 eics = 0; |
Alexander Duyck | 0d1ae7f | 2011-08-26 07:46:34 +0000 | [diff] [blame] | 4061 | for (i = 0; i < adapter->num_q_vectors; i++) |
| 4062 | eics |= adapter->q_vector[i]->eims_value; |
Alexander Duyck | 7a6ea55 | 2008-08-26 04:25:03 -0700 | [diff] [blame] | 4063 | wr32(E1000_EICS, eics); |
| 4064 | } else { |
| 4065 | wr32(E1000_ICS, E1000_ICS_RXDMT0); |
| 4066 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4067 | |
Greg Rose | 1380046 | 2010-11-06 02:08:26 +0000 | [diff] [blame] | 4068 | igb_spoof_check(adapter); |
Matthew Vick | fc58075 | 2012-12-13 07:20:35 +0000 | [diff] [blame] | 4069 | igb_ptp_rx_hang(adapter); |
Greg Rose | 1380046 | 2010-11-06 02:08:26 +0000 | [diff] [blame] | 4070 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4071 | /* Reset the timer */ |
Akeem G Abodunrin | aa9b8cc | 2013-08-28 02:22:43 +0000 | [diff] [blame] | 4072 | if (!test_bit(__IGB_DOWN, &adapter->state)) { |
| 4073 | if (adapter->flags & IGB_FLAG_NEED_LINK_UPDATE) |
| 4074 | mod_timer(&adapter->watchdog_timer, |
| 4075 | round_jiffies(jiffies + HZ)); |
| 4076 | else |
| 4077 | mod_timer(&adapter->watchdog_timer, |
| 4078 | round_jiffies(jiffies + 2 * HZ)); |
| 4079 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4080 | } |
| 4081 | |
| 4082 | enum latency_range { |
| 4083 | lowest_latency = 0, |
| 4084 | low_latency = 1, |
| 4085 | bulk_latency = 2, |
| 4086 | latency_invalid = 255 |
| 4087 | }; |
| 4088 | |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 4089 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4090 | * igb_update_ring_itr - update the dynamic ITR value based on packet size |
| 4091 | * @q_vector: pointer to q_vector |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 4092 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4093 | * Stores a new ITR value based on strictly on packet size. This |
| 4094 | * algorithm is less sophisticated than that used in igb_update_itr, |
| 4095 | * due to the difficulty of synchronizing statistics across multiple |
| 4096 | * receive rings. The divisors and thresholds used by this function |
| 4097 | * were determined based on theoretical maximum wire speed and testing |
| 4098 | * data, in order to minimize response time while increasing bulk |
| 4099 | * throughput. |
| 4100 | * This functionality is controlled by the InterruptThrottleRate module |
| 4101 | * parameter (see igb_param.c) |
| 4102 | * NOTE: This function is called only when operating in a multiqueue |
| 4103 | * receive environment. |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 4104 | **/ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4105 | static void igb_update_ring_itr(struct igb_q_vector *q_vector) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4106 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4107 | int new_val = q_vector->itr_val; |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 4108 | int avg_wire_size = 0; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4109 | struct igb_adapter *adapter = q_vector->adapter; |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 4110 | unsigned int packets; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4111 | |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 4112 | /* For non-gigabit speeds, just fix the interrupt rate at 4000 |
| 4113 | * ints/sec - ITR timer value of 120 ticks. |
| 4114 | */ |
| 4115 | if (adapter->link_speed != SPEED_1000) { |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4116 | new_val = IGB_4K_ITR; |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 4117 | goto set_itr_val; |
| 4118 | } |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4119 | |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4120 | packets = q_vector->rx.total_packets; |
| 4121 | if (packets) |
| 4122 | avg_wire_size = q_vector->rx.total_bytes / packets; |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 4123 | |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4124 | packets = q_vector->tx.total_packets; |
| 4125 | if (packets) |
| 4126 | avg_wire_size = max_t(u32, avg_wire_size, |
| 4127 | q_vector->tx.total_bytes / packets); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4128 | |
| 4129 | /* if avg_wire_size isn't set no work was done */ |
| 4130 | if (!avg_wire_size) |
| 4131 | goto clear_counts; |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 4132 | |
| 4133 | /* Add 24 bytes to size to account for CRC, preamble, and gap */ |
| 4134 | avg_wire_size += 24; |
| 4135 | |
| 4136 | /* Don't starve jumbo frames */ |
| 4137 | avg_wire_size = min(avg_wire_size, 3000); |
| 4138 | |
| 4139 | /* Give a little boost to mid-size frames */ |
| 4140 | if ((avg_wire_size > 300) && (avg_wire_size < 1200)) |
| 4141 | new_val = avg_wire_size / 3; |
| 4142 | else |
| 4143 | new_val = avg_wire_size / 2; |
| 4144 | |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4145 | /* conservative mode (itr 3) eliminates the lowest_latency setting */ |
| 4146 | if (new_val < IGB_20K_ITR && |
| 4147 | ((q_vector->rx.ring && adapter->rx_itr_setting == 3) || |
| 4148 | (!q_vector->rx.ring && adapter->tx_itr_setting == 3))) |
| 4149 | new_val = IGB_20K_ITR; |
Nick Nunley | abe1c36 | 2010-02-17 01:03:19 +0000 | [diff] [blame] | 4150 | |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 4151 | set_itr_val: |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4152 | if (new_val != q_vector->itr_val) { |
| 4153 | q_vector->itr_val = new_val; |
| 4154 | q_vector->set_itr = 1; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4155 | } |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 4156 | clear_counts: |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4157 | q_vector->rx.total_bytes = 0; |
| 4158 | q_vector->rx.total_packets = 0; |
| 4159 | q_vector->tx.total_bytes = 0; |
| 4160 | q_vector->tx.total_packets = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4161 | } |
| 4162 | |
| 4163 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4164 | * igb_update_itr - update the dynamic ITR value based on statistics |
| 4165 | * @q_vector: pointer to q_vector |
| 4166 | * @ring_container: ring info to update the itr for |
| 4167 | * |
| 4168 | * Stores a new ITR value based on packets and byte |
| 4169 | * counts during the last interrupt. The advantage of per interrupt |
| 4170 | * computation is faster updates and more accurate ITR for the current |
| 4171 | * traffic pattern. Constants in this function were computed |
| 4172 | * based on theoretical maximum wire speed and thresholds were set based |
| 4173 | * on testing data as well as attempting to minimize response time |
| 4174 | * while increasing bulk throughput. |
| 4175 | * this functionality is controlled by the InterruptThrottleRate module |
| 4176 | * parameter (see igb_param.c) |
| 4177 | * NOTE: These calculations are only valid when operating in a single- |
| 4178 | * queue environment. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4179 | **/ |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4180 | static void igb_update_itr(struct igb_q_vector *q_vector, |
| 4181 | struct igb_ring_container *ring_container) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4182 | { |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4183 | unsigned int packets = ring_container->total_packets; |
| 4184 | unsigned int bytes = ring_container->total_bytes; |
| 4185 | u8 itrval = ring_container->itr; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4186 | |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4187 | /* no packets, exit with status unchanged */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4188 | if (packets == 0) |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4189 | return; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4190 | |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4191 | switch (itrval) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4192 | case lowest_latency: |
| 4193 | /* handle TSO and jumbo frames */ |
| 4194 | if (bytes/packets > 8000) |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4195 | itrval = bulk_latency; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4196 | else if ((packets < 5) && (bytes > 512)) |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4197 | itrval = low_latency; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4198 | break; |
| 4199 | case low_latency: /* 50 usec aka 20000 ints/s */ |
| 4200 | if (bytes > 10000) { |
| 4201 | /* this if handles the TSO accounting */ |
| 4202 | if (bytes/packets > 8000) { |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4203 | itrval = bulk_latency; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4204 | } else if ((packets < 10) || ((bytes/packets) > 1200)) { |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4205 | itrval = bulk_latency; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4206 | } else if ((packets > 35)) { |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4207 | itrval = lowest_latency; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4208 | } |
| 4209 | } else if (bytes/packets > 2000) { |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4210 | itrval = bulk_latency; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4211 | } else if (packets <= 2 && bytes < 512) { |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4212 | itrval = lowest_latency; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4213 | } |
| 4214 | break; |
| 4215 | case bulk_latency: /* 250 usec aka 4000 ints/s */ |
| 4216 | if (bytes > 25000) { |
| 4217 | if (packets > 35) |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4218 | itrval = low_latency; |
Alexander Duyck | 1e5c3d2 | 2009-02-12 18:17:21 +0000 | [diff] [blame] | 4219 | } else if (bytes < 1500) { |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4220 | itrval = low_latency; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4221 | } |
| 4222 | break; |
| 4223 | } |
| 4224 | |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4225 | /* clear work counters since we have the values we need */ |
| 4226 | ring_container->total_bytes = 0; |
| 4227 | ring_container->total_packets = 0; |
| 4228 | |
| 4229 | /* write updated itr to ring container */ |
| 4230 | ring_container->itr = itrval; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4231 | } |
| 4232 | |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4233 | static void igb_set_itr(struct igb_q_vector *q_vector) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4234 | { |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4235 | struct igb_adapter *adapter = q_vector->adapter; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4236 | u32 new_itr = q_vector->itr_val; |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4237 | u8 current_itr = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4238 | |
| 4239 | /* for non-gigabit speeds, just fix the interrupt rate at 4000 */ |
| 4240 | if (adapter->link_speed != SPEED_1000) { |
| 4241 | current_itr = 0; |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4242 | new_itr = IGB_4K_ITR; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4243 | goto set_itr_now; |
| 4244 | } |
| 4245 | |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4246 | igb_update_itr(q_vector, &q_vector->tx); |
| 4247 | igb_update_itr(q_vector, &q_vector->rx); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4248 | |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4249 | current_itr = max(q_vector->rx.itr, q_vector->tx.itr); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4250 | |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 4251 | /* conservative mode (itr 3) eliminates the lowest_latency setting */ |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4252 | if (current_itr == lowest_latency && |
| 4253 | ((q_vector->rx.ring && adapter->rx_itr_setting == 3) || |
| 4254 | (!q_vector->rx.ring && adapter->tx_itr_setting == 3))) |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 4255 | current_itr = low_latency; |
| 4256 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4257 | switch (current_itr) { |
| 4258 | /* counts and packets in update_itr are dependent on these numbers */ |
| 4259 | case lowest_latency: |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4260 | new_itr = IGB_70K_ITR; /* 70,000 ints/sec */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4261 | break; |
| 4262 | case low_latency: |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4263 | new_itr = IGB_20K_ITR; /* 20,000 ints/sec */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4264 | break; |
| 4265 | case bulk_latency: |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 4266 | new_itr = IGB_4K_ITR; /* 4,000 ints/sec */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4267 | break; |
| 4268 | default: |
| 4269 | break; |
| 4270 | } |
| 4271 | |
| 4272 | set_itr_now: |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4273 | if (new_itr != q_vector->itr_val) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4274 | /* this attempts to bias the interrupt rate towards Bulk |
| 4275 | * by adding intermediate steps when interrupt rate is |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4276 | * increasing |
| 4277 | */ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4278 | new_itr = new_itr > q_vector->itr_val ? |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4279 | max((new_itr * q_vector->itr_val) / |
| 4280 | (new_itr + (q_vector->itr_val >> 2)), |
| 4281 | new_itr) : new_itr; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4282 | /* Don't write the value here; it resets the adapter's |
| 4283 | * internal timer, and causes us to delay far longer than |
| 4284 | * we should between interrupts. Instead, we write the ITR |
| 4285 | * value at the beginning of the next interrupt so the timing |
| 4286 | * ends up being correct. |
| 4287 | */ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4288 | q_vector->itr_val = new_itr; |
| 4289 | q_vector->set_itr = 1; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4290 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4291 | } |
| 4292 | |
Stephen Hemminger | c50b52a | 2012-01-18 22:13:26 +0000 | [diff] [blame] | 4293 | static void igb_tx_ctxtdesc(struct igb_ring *tx_ring, u32 vlan_macip_lens, |
| 4294 | u32 type_tucmd, u32 mss_l4len_idx) |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4295 | { |
| 4296 | struct e1000_adv_tx_context_desc *context_desc; |
| 4297 | u16 i = tx_ring->next_to_use; |
| 4298 | |
| 4299 | context_desc = IGB_TX_CTXTDESC(tx_ring, i); |
| 4300 | |
| 4301 | i++; |
| 4302 | tx_ring->next_to_use = (i < tx_ring->count) ? i : 0; |
| 4303 | |
| 4304 | /* set bits to identify this as an advanced context descriptor */ |
| 4305 | type_tucmd |= E1000_TXD_CMD_DEXT | E1000_ADVTXD_DTYP_CTXT; |
| 4306 | |
| 4307 | /* For 82575, context index must be unique per ring. */ |
Alexander Duyck | 866cff0 | 2011-08-26 07:45:36 +0000 | [diff] [blame] | 4308 | if (test_bit(IGB_RING_FLAG_TX_CTX_IDX, &tx_ring->flags)) |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4309 | mss_l4len_idx |= tx_ring->reg_idx << 4; |
| 4310 | |
| 4311 | context_desc->vlan_macip_lens = cpu_to_le32(vlan_macip_lens); |
| 4312 | context_desc->seqnum_seed = 0; |
| 4313 | context_desc->type_tucmd_mlhl = cpu_to_le32(type_tucmd); |
| 4314 | context_desc->mss_l4len_idx = cpu_to_le32(mss_l4len_idx); |
| 4315 | } |
| 4316 | |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4317 | static int igb_tso(struct igb_ring *tx_ring, |
| 4318 | struct igb_tx_buffer *first, |
| 4319 | u8 *hdr_len) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4320 | { |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4321 | struct sk_buff *skb = first->skb; |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4322 | u32 vlan_macip_lens, type_tucmd; |
| 4323 | u32 mss_l4len_idx, l4len; |
| 4324 | |
Alexander Duyck | ed6aa10 | 2012-11-13 04:03:22 +0000 | [diff] [blame] | 4325 | if (skb->ip_summed != CHECKSUM_PARTIAL) |
| 4326 | return 0; |
| 4327 | |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4328 | if (!skb_is_gso(skb)) |
| 4329 | return 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4330 | |
| 4331 | if (skb_header_cloned(skb)) { |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4332 | int err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4333 | if (err) |
| 4334 | return err; |
| 4335 | } |
| 4336 | |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4337 | /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */ |
| 4338 | type_tucmd = E1000_ADVTXD_TUCMD_L4T_TCP; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4339 | |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4340 | if (first->protocol == __constant_htons(ETH_P_IP)) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4341 | struct iphdr *iph = ip_hdr(skb); |
| 4342 | iph->tot_len = 0; |
| 4343 | iph->check = 0; |
| 4344 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, |
| 4345 | iph->daddr, 0, |
| 4346 | IPPROTO_TCP, |
| 4347 | 0); |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4348 | type_tucmd |= E1000_ADVTXD_TUCMD_IPV4; |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4349 | first->tx_flags |= IGB_TX_FLAGS_TSO | |
| 4350 | IGB_TX_FLAGS_CSUM | |
| 4351 | IGB_TX_FLAGS_IPV4; |
Sridhar Samudrala | 8e1e8a4 | 2010-01-23 02:02:21 -0800 | [diff] [blame] | 4352 | } else if (skb_is_gso_v6(skb)) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4353 | ipv6_hdr(skb)->payload_len = 0; |
| 4354 | tcp_hdr(skb)->check = ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, |
| 4355 | &ipv6_hdr(skb)->daddr, |
| 4356 | 0, IPPROTO_TCP, 0); |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4357 | first->tx_flags |= IGB_TX_FLAGS_TSO | |
| 4358 | IGB_TX_FLAGS_CSUM; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4359 | } |
| 4360 | |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4361 | /* compute header lengths */ |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4362 | l4len = tcp_hdrlen(skb); |
| 4363 | *hdr_len = skb_transport_offset(skb) + l4len; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4364 | |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4365 | /* update gso size and bytecount with header size */ |
| 4366 | first->gso_segs = skb_shinfo(skb)->gso_segs; |
| 4367 | first->bytecount += (first->gso_segs - 1) * *hdr_len; |
| 4368 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4369 | /* MSS L4LEN IDX */ |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4370 | mss_l4len_idx = l4len << E1000_ADVTXD_L4LEN_SHIFT; |
| 4371 | mss_l4len_idx |= skb_shinfo(skb)->gso_size << E1000_ADVTXD_MSS_SHIFT; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4372 | |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4373 | /* VLAN MACLEN IPLEN */ |
| 4374 | vlan_macip_lens = skb_network_header_len(skb); |
| 4375 | vlan_macip_lens |= skb_network_offset(skb) << E1000_ADVTXD_MACLEN_SHIFT; |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4376 | vlan_macip_lens |= first->tx_flags & IGB_TX_FLAGS_VLAN_MASK; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4377 | |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4378 | igb_tx_ctxtdesc(tx_ring, vlan_macip_lens, type_tucmd, mss_l4len_idx); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4379 | |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4380 | return 1; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4381 | } |
| 4382 | |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4383 | static void igb_tx_csum(struct igb_ring *tx_ring, struct igb_tx_buffer *first) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4384 | { |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4385 | struct sk_buff *skb = first->skb; |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4386 | u32 vlan_macip_lens = 0; |
| 4387 | u32 mss_l4len_idx = 0; |
| 4388 | u32 type_tucmd = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4389 | |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4390 | if (skb->ip_summed != CHECKSUM_PARTIAL) { |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4391 | if (!(first->tx_flags & IGB_TX_FLAGS_VLAN)) |
| 4392 | return; |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4393 | } else { |
| 4394 | u8 l4_hdr = 0; |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4395 | switch (first->protocol) { |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4396 | case __constant_htons(ETH_P_IP): |
| 4397 | vlan_macip_lens |= skb_network_header_len(skb); |
| 4398 | type_tucmd |= E1000_ADVTXD_TUCMD_IPV4; |
| 4399 | l4_hdr = ip_hdr(skb)->protocol; |
| 4400 | break; |
| 4401 | case __constant_htons(ETH_P_IPV6): |
| 4402 | vlan_macip_lens |= skb_network_header_len(skb); |
| 4403 | l4_hdr = ipv6_hdr(skb)->nexthdr; |
| 4404 | break; |
| 4405 | default: |
| 4406 | if (unlikely(net_ratelimit())) { |
| 4407 | dev_warn(tx_ring->dev, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4408 | "partial checksum but proto=%x!\n", |
| 4409 | first->protocol); |
Arthur Jones | fa4a7ef | 2009-03-21 16:55:07 -0700 | [diff] [blame] | 4410 | } |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4411 | break; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4412 | } |
| 4413 | |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4414 | switch (l4_hdr) { |
| 4415 | case IPPROTO_TCP: |
| 4416 | type_tucmd |= E1000_ADVTXD_TUCMD_L4T_TCP; |
| 4417 | mss_l4len_idx = tcp_hdrlen(skb) << |
| 4418 | E1000_ADVTXD_L4LEN_SHIFT; |
| 4419 | break; |
| 4420 | case IPPROTO_SCTP: |
| 4421 | type_tucmd |= E1000_ADVTXD_TUCMD_L4T_SCTP; |
| 4422 | mss_l4len_idx = sizeof(struct sctphdr) << |
| 4423 | E1000_ADVTXD_L4LEN_SHIFT; |
| 4424 | break; |
| 4425 | case IPPROTO_UDP: |
| 4426 | mss_l4len_idx = sizeof(struct udphdr) << |
| 4427 | E1000_ADVTXD_L4LEN_SHIFT; |
| 4428 | break; |
| 4429 | default: |
| 4430 | if (unlikely(net_ratelimit())) { |
| 4431 | dev_warn(tx_ring->dev, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4432 | "partial checksum but l4 proto=%x!\n", |
| 4433 | l4_hdr); |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4434 | } |
| 4435 | break; |
| 4436 | } |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4437 | |
| 4438 | /* update TX checksum flag */ |
| 4439 | first->tx_flags |= IGB_TX_FLAGS_CSUM; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4440 | } |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4441 | |
| 4442 | vlan_macip_lens |= skb_network_offset(skb) << E1000_ADVTXD_MACLEN_SHIFT; |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4443 | vlan_macip_lens |= first->tx_flags & IGB_TX_FLAGS_VLAN_MASK; |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4444 | |
| 4445 | igb_tx_ctxtdesc(tx_ring, vlan_macip_lens, type_tucmd, mss_l4len_idx); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4446 | } |
| 4447 | |
Alexander Duyck | 1d9daf4 | 2012-11-13 04:03:23 +0000 | [diff] [blame] | 4448 | #define IGB_SET_FLAG(_input, _flag, _result) \ |
| 4449 | ((_flag <= _result) ? \ |
| 4450 | ((u32)(_input & _flag) * (_result / _flag)) : \ |
| 4451 | ((u32)(_input & _flag) / (_flag / _result))) |
| 4452 | |
| 4453 | static u32 igb_tx_cmd_type(struct sk_buff *skb, u32 tx_flags) |
Alexander Duyck | e032afc | 2011-08-26 07:44:48 +0000 | [diff] [blame] | 4454 | { |
| 4455 | /* set type for advanced descriptor with frame checksum insertion */ |
Alexander Duyck | 1d9daf4 | 2012-11-13 04:03:23 +0000 | [diff] [blame] | 4456 | u32 cmd_type = E1000_ADVTXD_DTYP_DATA | |
| 4457 | E1000_ADVTXD_DCMD_DEXT | |
| 4458 | E1000_ADVTXD_DCMD_IFCS; |
Alexander Duyck | e032afc | 2011-08-26 07:44:48 +0000 | [diff] [blame] | 4459 | |
| 4460 | /* set HW vlan bit if vlan is present */ |
Alexander Duyck | 1d9daf4 | 2012-11-13 04:03:23 +0000 | [diff] [blame] | 4461 | cmd_type |= IGB_SET_FLAG(tx_flags, IGB_TX_FLAGS_VLAN, |
| 4462 | (E1000_ADVTXD_DCMD_VLE)); |
Alexander Duyck | e032afc | 2011-08-26 07:44:48 +0000 | [diff] [blame] | 4463 | |
| 4464 | /* set segmentation bits for TSO */ |
Alexander Duyck | 1d9daf4 | 2012-11-13 04:03:23 +0000 | [diff] [blame] | 4465 | cmd_type |= IGB_SET_FLAG(tx_flags, IGB_TX_FLAGS_TSO, |
| 4466 | (E1000_ADVTXD_DCMD_TSE)); |
| 4467 | |
| 4468 | /* set timestamp bit if present */ |
| 4469 | cmd_type |= IGB_SET_FLAG(tx_flags, IGB_TX_FLAGS_TSTAMP, |
| 4470 | (E1000_ADVTXD_MAC_TSTAMP)); |
| 4471 | |
| 4472 | /* insert frame checksum */ |
| 4473 | cmd_type ^= IGB_SET_FLAG(skb->no_fcs, 1, E1000_ADVTXD_DCMD_IFCS); |
Alexander Duyck | e032afc | 2011-08-26 07:44:48 +0000 | [diff] [blame] | 4474 | |
| 4475 | return cmd_type; |
| 4476 | } |
| 4477 | |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4478 | static void igb_tx_olinfo_status(struct igb_ring *tx_ring, |
| 4479 | union e1000_adv_tx_desc *tx_desc, |
| 4480 | u32 tx_flags, unsigned int paylen) |
Alexander Duyck | e032afc | 2011-08-26 07:44:48 +0000 | [diff] [blame] | 4481 | { |
| 4482 | u32 olinfo_status = paylen << E1000_ADVTXD_PAYLEN_SHIFT; |
| 4483 | |
Alexander Duyck | 1d9daf4 | 2012-11-13 04:03:23 +0000 | [diff] [blame] | 4484 | /* 82575 requires a unique index per ring */ |
| 4485 | if (test_bit(IGB_RING_FLAG_TX_CTX_IDX, &tx_ring->flags)) |
Alexander Duyck | e032afc | 2011-08-26 07:44:48 +0000 | [diff] [blame] | 4486 | olinfo_status |= tx_ring->reg_idx << 4; |
| 4487 | |
| 4488 | /* insert L4 checksum */ |
Alexander Duyck | 1d9daf4 | 2012-11-13 04:03:23 +0000 | [diff] [blame] | 4489 | olinfo_status |= IGB_SET_FLAG(tx_flags, |
| 4490 | IGB_TX_FLAGS_CSUM, |
| 4491 | (E1000_TXD_POPTS_TXSM << 8)); |
Alexander Duyck | e032afc | 2011-08-26 07:44:48 +0000 | [diff] [blame] | 4492 | |
Alexander Duyck | 1d9daf4 | 2012-11-13 04:03:23 +0000 | [diff] [blame] | 4493 | /* insert IPv4 checksum */ |
| 4494 | olinfo_status |= IGB_SET_FLAG(tx_flags, |
| 4495 | IGB_TX_FLAGS_IPV4, |
| 4496 | (E1000_TXD_POPTS_IXSM << 8)); |
Alexander Duyck | e032afc | 2011-08-26 07:44:48 +0000 | [diff] [blame] | 4497 | |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4498 | tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status); |
Alexander Duyck | e032afc | 2011-08-26 07:44:48 +0000 | [diff] [blame] | 4499 | } |
| 4500 | |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4501 | static void igb_tx_map(struct igb_ring *tx_ring, |
| 4502 | struct igb_tx_buffer *first, |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4503 | const u8 hdr_len) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4504 | { |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4505 | struct sk_buff *skb = first->skb; |
Alexander Duyck | c9f14bf3 | 2012-09-18 01:56:27 +0000 | [diff] [blame] | 4506 | struct igb_tx_buffer *tx_buffer; |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4507 | union e1000_adv_tx_desc *tx_desc; |
Alexander Duyck | 80d0759 | 2012-11-13 04:03:24 +0000 | [diff] [blame] | 4508 | struct skb_frag_struct *frag; |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4509 | dma_addr_t dma; |
Alexander Duyck | 80d0759 | 2012-11-13 04:03:24 +0000 | [diff] [blame] | 4510 | unsigned int data_len, size; |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4511 | u32 tx_flags = first->tx_flags; |
Alexander Duyck | 1d9daf4 | 2012-11-13 04:03:23 +0000 | [diff] [blame] | 4512 | u32 cmd_type = igb_tx_cmd_type(skb, tx_flags); |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4513 | u16 i = tx_ring->next_to_use; |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4514 | |
| 4515 | tx_desc = IGB_TX_DESC(tx_ring, i); |
| 4516 | |
Alexander Duyck | 80d0759 | 2012-11-13 04:03:24 +0000 | [diff] [blame] | 4517 | igb_tx_olinfo_status(tx_ring, tx_desc, tx_flags, skb->len - hdr_len); |
| 4518 | |
| 4519 | size = skb_headlen(skb); |
| 4520 | data_len = skb->data_len; |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4521 | |
| 4522 | dma = dma_map_single(tx_ring->dev, skb->data, size, DMA_TO_DEVICE); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4523 | |
Alexander Duyck | 80d0759 | 2012-11-13 04:03:24 +0000 | [diff] [blame] | 4524 | tx_buffer = first; |
Alexander Duyck | 2bbfebe | 2011-08-26 07:44:59 +0000 | [diff] [blame] | 4525 | |
Alexander Duyck | 80d0759 | 2012-11-13 04:03:24 +0000 | [diff] [blame] | 4526 | for (frag = &skb_shinfo(skb)->frags[0];; frag++) { |
| 4527 | if (dma_mapping_error(tx_ring->dev, dma)) |
| 4528 | goto dma_error; |
| 4529 | |
| 4530 | /* record length, and DMA address */ |
| 4531 | dma_unmap_len_set(tx_buffer, len, size); |
| 4532 | dma_unmap_addr_set(tx_buffer, dma, dma); |
| 4533 | |
| 4534 | tx_desc->read.buffer_addr = cpu_to_le64(dma); |
| 4535 | |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4536 | while (unlikely(size > IGB_MAX_DATA_PER_TXD)) { |
| 4537 | tx_desc->read.cmd_type_len = |
Alexander Duyck | 1d9daf4 | 2012-11-13 04:03:23 +0000 | [diff] [blame] | 4538 | cpu_to_le32(cmd_type ^ IGB_MAX_DATA_PER_TXD); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4539 | |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4540 | i++; |
| 4541 | tx_desc++; |
| 4542 | if (i == tx_ring->count) { |
| 4543 | tx_desc = IGB_TX_DESC(tx_ring, 0); |
| 4544 | i = 0; |
| 4545 | } |
Alexander Duyck | 80d0759 | 2012-11-13 04:03:24 +0000 | [diff] [blame] | 4546 | tx_desc->read.olinfo_status = 0; |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4547 | |
| 4548 | dma += IGB_MAX_DATA_PER_TXD; |
| 4549 | size -= IGB_MAX_DATA_PER_TXD; |
| 4550 | |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4551 | tx_desc->read.buffer_addr = cpu_to_le64(dma); |
| 4552 | } |
| 4553 | |
| 4554 | if (likely(!data_len)) |
| 4555 | break; |
| 4556 | |
Alexander Duyck | 1d9daf4 | 2012-11-13 04:03:23 +0000 | [diff] [blame] | 4557 | tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type ^ size); |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4558 | |
Alexander Duyck | 65689fe | 2009-03-20 00:17:43 +0000 | [diff] [blame] | 4559 | i++; |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4560 | tx_desc++; |
| 4561 | if (i == tx_ring->count) { |
| 4562 | tx_desc = IGB_TX_DESC(tx_ring, 0); |
Alexander Duyck | 65689fe | 2009-03-20 00:17:43 +0000 | [diff] [blame] | 4563 | i = 0; |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4564 | } |
Alexander Duyck | 80d0759 | 2012-11-13 04:03:24 +0000 | [diff] [blame] | 4565 | tx_desc->read.olinfo_status = 0; |
Alexander Duyck | 65689fe | 2009-03-20 00:17:43 +0000 | [diff] [blame] | 4566 | |
Eric Dumazet | 9e903e0 | 2011-10-18 21:00:24 +0000 | [diff] [blame] | 4567 | size = skb_frag_size(frag); |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4568 | data_len -= size; |
| 4569 | |
| 4570 | dma = skb_frag_dma_map(tx_ring->dev, frag, 0, |
Alexander Duyck | 80d0759 | 2012-11-13 04:03:24 +0000 | [diff] [blame] | 4571 | size, DMA_TO_DEVICE); |
Alexander Duyck | 6366ad3 | 2009-12-02 16:47:18 +0000 | [diff] [blame] | 4572 | |
Alexander Duyck | c9f14bf3 | 2012-09-18 01:56:27 +0000 | [diff] [blame] | 4573 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4574 | } |
| 4575 | |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4576 | /* write last descriptor with RS and EOP bits */ |
Alexander Duyck | 1d9daf4 | 2012-11-13 04:03:23 +0000 | [diff] [blame] | 4577 | cmd_type |= size | IGB_TXD_DCMD; |
| 4578 | tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type); |
Alexander Duyck | 8542db0 | 2011-08-26 07:44:43 +0000 | [diff] [blame] | 4579 | |
Alexander Duyck | 80d0759 | 2012-11-13 04:03:24 +0000 | [diff] [blame] | 4580 | netdev_tx_sent_queue(txring_txq(tx_ring), first->bytecount); |
| 4581 | |
Alexander Duyck | 8542db0 | 2011-08-26 07:44:43 +0000 | [diff] [blame] | 4582 | /* set the timestamp */ |
| 4583 | first->time_stamp = jiffies; |
| 4584 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4585 | /* Force memory writes to complete before letting h/w know there |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4586 | * are new descriptors to fetch. (Only applicable for weak-ordered |
| 4587 | * memory model archs, such as IA-64). |
| 4588 | * |
| 4589 | * We also need this memory barrier to make certain all of the |
| 4590 | * status bits have been updated before next_to_watch is written. |
| 4591 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4592 | wmb(); |
| 4593 | |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4594 | /* set next_to_watch value indicating a packet is present */ |
| 4595 | first->next_to_watch = tx_desc; |
| 4596 | |
| 4597 | i++; |
| 4598 | if (i == tx_ring->count) |
| 4599 | i = 0; |
| 4600 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4601 | tx_ring->next_to_use = i; |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4602 | |
Alexander Duyck | fce99e3 | 2009-10-27 15:51:27 +0000 | [diff] [blame] | 4603 | writel(i, tx_ring->tail); |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4604 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4605 | /* we need this if more than one processor can write to our tail |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4606 | * at a time, it synchronizes IO on IA64/Altix systems |
| 4607 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4608 | mmiowb(); |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4609 | |
| 4610 | return; |
| 4611 | |
| 4612 | dma_error: |
| 4613 | dev_err(tx_ring->dev, "TX DMA map failed\n"); |
| 4614 | |
| 4615 | /* clear dma mappings for failed tx_buffer_info map */ |
| 4616 | for (;;) { |
Alexander Duyck | c9f14bf3 | 2012-09-18 01:56:27 +0000 | [diff] [blame] | 4617 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
| 4618 | igb_unmap_and_free_tx_resource(tx_ring, tx_buffer); |
| 4619 | if (tx_buffer == first) |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4620 | break; |
| 4621 | if (i == 0) |
| 4622 | i = tx_ring->count; |
| 4623 | i--; |
| 4624 | } |
| 4625 | |
| 4626 | tx_ring->next_to_use = i; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4627 | } |
| 4628 | |
Alexander Duyck | 6ad4edf | 2011-08-26 07:45:26 +0000 | [diff] [blame] | 4629 | static int __igb_maybe_stop_tx(struct igb_ring *tx_ring, const u16 size) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4630 | { |
Alexander Duyck | e694e96 | 2009-10-27 15:53:06 +0000 | [diff] [blame] | 4631 | struct net_device *netdev = tx_ring->netdev; |
| 4632 | |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 4633 | netif_stop_subqueue(netdev, tx_ring->queue_index); |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 4634 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4635 | /* Herbert's original patch had: |
| 4636 | * smp_mb__after_netif_stop_queue(); |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4637 | * but since that doesn't exist yet, just open code it. |
| 4638 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4639 | smp_mb(); |
| 4640 | |
| 4641 | /* We need to check again in a case another CPU has just |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4642 | * made room available. |
| 4643 | */ |
Alexander Duyck | c493ea4 | 2009-03-20 00:16:50 +0000 | [diff] [blame] | 4644 | if (igb_desc_unused(tx_ring) < size) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4645 | return -EBUSY; |
| 4646 | |
| 4647 | /* A reprieve! */ |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 4648 | netif_wake_subqueue(netdev, tx_ring->queue_index); |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 4649 | |
| 4650 | u64_stats_update_begin(&tx_ring->tx_syncp2); |
| 4651 | tx_ring->tx_stats.restart_queue2++; |
| 4652 | u64_stats_update_end(&tx_ring->tx_syncp2); |
| 4653 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4654 | return 0; |
| 4655 | } |
| 4656 | |
Alexander Duyck | 6ad4edf | 2011-08-26 07:45:26 +0000 | [diff] [blame] | 4657 | static inline int igb_maybe_stop_tx(struct igb_ring *tx_ring, const u16 size) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4658 | { |
Alexander Duyck | c493ea4 | 2009-03-20 00:16:50 +0000 | [diff] [blame] | 4659 | if (igb_desc_unused(tx_ring) >= size) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4660 | return 0; |
Alexander Duyck | e694e96 | 2009-10-27 15:53:06 +0000 | [diff] [blame] | 4661 | return __igb_maybe_stop_tx(tx_ring, size); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4662 | } |
| 4663 | |
Alexander Duyck | cd392f5 | 2011-08-26 07:43:59 +0000 | [diff] [blame] | 4664 | netdev_tx_t igb_xmit_frame_ring(struct sk_buff *skb, |
| 4665 | struct igb_ring *tx_ring) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4666 | { |
Alexander Duyck | 8542db0 | 2011-08-26 07:44:43 +0000 | [diff] [blame] | 4667 | struct igb_tx_buffer *first; |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 4668 | int tso; |
Nick Nunley | 91d4ee3 | 2010-02-17 01:04:56 +0000 | [diff] [blame] | 4669 | u32 tx_flags = 0; |
Alexander Duyck | 21ba6fe | 2013-02-09 04:27:48 +0000 | [diff] [blame] | 4670 | u16 count = TXD_USE_COUNT(skb_headlen(skb)); |
Alexander Duyck | 31f6adb | 2011-08-26 07:44:53 +0000 | [diff] [blame] | 4671 | __be16 protocol = vlan_get_protocol(skb); |
Nick Nunley | 91d4ee3 | 2010-02-17 01:04:56 +0000 | [diff] [blame] | 4672 | u8 hdr_len = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4673 | |
Alexander Duyck | 21ba6fe | 2013-02-09 04:27:48 +0000 | [diff] [blame] | 4674 | /* need: 1 descriptor per page * PAGE_SIZE/IGB_MAX_DATA_PER_TXD, |
| 4675 | * + 1 desc for skb_headlen/IGB_MAX_DATA_PER_TXD, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4676 | * + 2 desc gap to keep tail from touching head, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4677 | * + 1 desc for context descriptor, |
Alexander Duyck | 21ba6fe | 2013-02-09 04:27:48 +0000 | [diff] [blame] | 4678 | * otherwise try next time |
| 4679 | */ |
| 4680 | if (NETDEV_FRAG_PAGE_MAX_SIZE > IGB_MAX_DATA_PER_TXD) { |
| 4681 | unsigned short f; |
| 4682 | for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) |
| 4683 | count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size); |
| 4684 | } else { |
| 4685 | count += skb_shinfo(skb)->nr_frags; |
| 4686 | } |
| 4687 | |
| 4688 | if (igb_maybe_stop_tx(tx_ring, count + 3)) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4689 | /* this is a hard error */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4690 | return NETDEV_TX_BUSY; |
| 4691 | } |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 4692 | |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4693 | /* record the location of the first descriptor for this packet */ |
| 4694 | first = &tx_ring->tx_buffer_info[tx_ring->next_to_use]; |
| 4695 | first->skb = skb; |
| 4696 | first->bytecount = skb->len; |
| 4697 | first->gso_segs = 1; |
| 4698 | |
Matthew Vick | b66e239 | 2012-12-13 07:20:33 +0000 | [diff] [blame] | 4699 | skb_tx_timestamp(skb); |
| 4700 | |
Alexander Duyck | b646c22 | 2013-02-07 08:55:46 +0000 | [diff] [blame] | 4701 | if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) { |
| 4702 | struct igb_adapter *adapter = netdev_priv(tx_ring->netdev); |
Matthew Vick | 1f6e817 | 2012-08-18 07:26:33 +0000 | [diff] [blame] | 4703 | |
Alexander Duyck | b646c22 | 2013-02-07 08:55:46 +0000 | [diff] [blame] | 4704 | if (!(adapter->ptp_tx_skb)) { |
| 4705 | skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; |
| 4706 | tx_flags |= IGB_TX_FLAGS_TSTAMP; |
| 4707 | |
| 4708 | adapter->ptp_tx_skb = skb_get(skb); |
| 4709 | adapter->ptp_tx_start = jiffies; |
| 4710 | if (adapter->hw.mac.type == e1000_82576) |
| 4711 | schedule_work(&adapter->ptp_tx_work); |
| 4712 | } |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 4713 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4714 | |
Jesse Gross | eab6d18 | 2010-10-20 13:56:03 +0000 | [diff] [blame] | 4715 | if (vlan_tx_tag_present(skb)) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4716 | tx_flags |= IGB_TX_FLAGS_VLAN; |
| 4717 | tx_flags |= (vlan_tx_tag_get(skb) << IGB_TX_FLAGS_VLAN_SHIFT); |
| 4718 | } |
| 4719 | |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4720 | /* record initial flags and protocol */ |
| 4721 | first->tx_flags = tx_flags; |
| 4722 | first->protocol = protocol; |
Alexander Duyck | cdfd01fc | 2009-10-27 23:50:57 +0000 | [diff] [blame] | 4723 | |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4724 | tso = igb_tso(tx_ring, first, &hdr_len); |
| 4725 | if (tso < 0) |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4726 | goto out_drop; |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4727 | else if (!tso) |
| 4728 | igb_tx_csum(tx_ring, first); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4729 | |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4730 | igb_tx_map(tx_ring, first, hdr_len); |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 4731 | |
| 4732 | /* Make sure there is space in the ring for the next send. */ |
Alexander Duyck | 21ba6fe | 2013-02-09 04:27:48 +0000 | [diff] [blame] | 4733 | igb_maybe_stop_tx(tx_ring, DESC_NEEDED); |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 4734 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4735 | return NETDEV_TX_OK; |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4736 | |
| 4737 | out_drop: |
Alexander Duyck | 7af40ad9 | 2011-08-26 07:45:15 +0000 | [diff] [blame] | 4738 | igb_unmap_and_free_tx_resource(tx_ring, first); |
| 4739 | |
Alexander Duyck | 7d13a7d | 2011-08-26 07:44:32 +0000 | [diff] [blame] | 4740 | return NETDEV_TX_OK; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4741 | } |
| 4742 | |
Alexander Duyck | 1cc3bd8 | 2011-08-26 07:44:10 +0000 | [diff] [blame] | 4743 | static inline struct igb_ring *igb_tx_queue_mapping(struct igb_adapter *adapter, |
| 4744 | struct sk_buff *skb) |
| 4745 | { |
| 4746 | unsigned int r_idx = skb->queue_mapping; |
| 4747 | |
| 4748 | if (r_idx >= adapter->num_tx_queues) |
| 4749 | r_idx = r_idx % adapter->num_tx_queues; |
| 4750 | |
| 4751 | return adapter->tx_ring[r_idx]; |
| 4752 | } |
| 4753 | |
Alexander Duyck | cd392f5 | 2011-08-26 07:43:59 +0000 | [diff] [blame] | 4754 | static netdev_tx_t igb_xmit_frame(struct sk_buff *skb, |
| 4755 | struct net_device *netdev) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4756 | { |
| 4757 | struct igb_adapter *adapter = netdev_priv(netdev); |
Alexander Duyck | b1a436c | 2009-10-27 15:54:43 +0000 | [diff] [blame] | 4758 | |
| 4759 | if (test_bit(__IGB_DOWN, &adapter->state)) { |
| 4760 | dev_kfree_skb_any(skb); |
| 4761 | return NETDEV_TX_OK; |
| 4762 | } |
| 4763 | |
| 4764 | if (skb->len <= 0) { |
| 4765 | dev_kfree_skb_any(skb); |
| 4766 | return NETDEV_TX_OK; |
| 4767 | } |
| 4768 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4769 | /* The minimum packet size with TCTL.PSP set is 17 so pad the skb |
Alexander Duyck | 1cc3bd8 | 2011-08-26 07:44:10 +0000 | [diff] [blame] | 4770 | * in order to meet this minimum size requirement. |
| 4771 | */ |
Tushar Dave | ea5ceea | 2012-09-14 03:43:43 +0000 | [diff] [blame] | 4772 | if (unlikely(skb->len < 17)) { |
| 4773 | if (skb_pad(skb, 17 - skb->len)) |
Alexander Duyck | 1cc3bd8 | 2011-08-26 07:44:10 +0000 | [diff] [blame] | 4774 | return NETDEV_TX_OK; |
| 4775 | skb->len = 17; |
Tushar Dave | ea5ceea | 2012-09-14 03:43:43 +0000 | [diff] [blame] | 4776 | skb_set_tail_pointer(skb, 17); |
Alexander Duyck | 1cc3bd8 | 2011-08-26 07:44:10 +0000 | [diff] [blame] | 4777 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4778 | |
Alexander Duyck | 1cc3bd8 | 2011-08-26 07:44:10 +0000 | [diff] [blame] | 4779 | return igb_xmit_frame_ring(skb, igb_tx_queue_mapping(adapter, skb)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4780 | } |
| 4781 | |
| 4782 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4783 | * igb_tx_timeout - Respond to a Tx Hang |
| 4784 | * @netdev: network interface device structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4785 | **/ |
| 4786 | static void igb_tx_timeout(struct net_device *netdev) |
| 4787 | { |
| 4788 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 4789 | struct e1000_hw *hw = &adapter->hw; |
| 4790 | |
| 4791 | /* Do the reset outside of interrupt context */ |
| 4792 | adapter->tx_timeout_count++; |
Alexander Duyck | f7ba205 | 2009-10-27 23:48:51 +0000 | [diff] [blame] | 4793 | |
Alexander Duyck | 06218a8 | 2011-08-26 07:46:55 +0000 | [diff] [blame] | 4794 | if (hw->mac.type >= e1000_82580) |
Alexander Duyck | 55cac24 | 2009-11-19 12:42:21 +0000 | [diff] [blame] | 4795 | hw->dev_spec._82575.global_device_reset = true; |
| 4796 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4797 | schedule_work(&adapter->reset_task); |
Alexander Duyck | 265de40 | 2009-02-06 23:22:52 +0000 | [diff] [blame] | 4798 | wr32(E1000_EICS, |
| 4799 | (adapter->eims_enable_mask & ~adapter->eims_other)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4800 | } |
| 4801 | |
| 4802 | static void igb_reset_task(struct work_struct *work) |
| 4803 | { |
| 4804 | struct igb_adapter *adapter; |
| 4805 | adapter = container_of(work, struct igb_adapter, reset_task); |
| 4806 | |
Taku Izumi | c97ec42 | 2010-04-27 14:39:30 +0000 | [diff] [blame] | 4807 | igb_dump(adapter); |
| 4808 | netdev_err(adapter->netdev, "Reset adapter\n"); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4809 | igb_reinit_locked(adapter); |
| 4810 | } |
| 4811 | |
| 4812 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4813 | * igb_get_stats64 - Get System Network Statistics |
| 4814 | * @netdev: network interface device structure |
| 4815 | * @stats: rtnl_link_stats64 pointer |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4816 | **/ |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 4817 | static struct rtnl_link_stats64 *igb_get_stats64(struct net_device *netdev, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4818 | struct rtnl_link_stats64 *stats) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4819 | { |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 4820 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 4821 | |
| 4822 | spin_lock(&adapter->stats64_lock); |
| 4823 | igb_update_stats(adapter, &adapter->stats64); |
| 4824 | memcpy(stats, &adapter->stats64, sizeof(*stats)); |
| 4825 | spin_unlock(&adapter->stats64_lock); |
| 4826 | |
| 4827 | return stats; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4828 | } |
| 4829 | |
| 4830 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4831 | * igb_change_mtu - Change the Maximum Transfer Unit |
| 4832 | * @netdev: network interface device structure |
| 4833 | * @new_mtu: new value for maximum frame size |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4834 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4835 | * Returns 0 on success, negative on failure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4836 | **/ |
| 4837 | static int igb_change_mtu(struct net_device *netdev, int new_mtu) |
| 4838 | { |
| 4839 | struct igb_adapter *adapter = netdev_priv(netdev); |
Alexander Duyck | 090b179 | 2009-10-27 23:51:55 +0000 | [diff] [blame] | 4840 | struct pci_dev *pdev = adapter->pdev; |
Alexander Duyck | 153285f | 2011-08-26 07:43:32 +0000 | [diff] [blame] | 4841 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4842 | |
Alexander Duyck | c809d22 | 2009-10-27 23:52:13 +0000 | [diff] [blame] | 4843 | if ((new_mtu < 68) || (max_frame > MAX_JUMBO_FRAME_SIZE)) { |
Alexander Duyck | 090b179 | 2009-10-27 23:51:55 +0000 | [diff] [blame] | 4844 | dev_err(&pdev->dev, "Invalid MTU setting\n"); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4845 | return -EINVAL; |
| 4846 | } |
| 4847 | |
Alexander Duyck | 153285f | 2011-08-26 07:43:32 +0000 | [diff] [blame] | 4848 | #define MAX_STD_JUMBO_FRAME_SIZE 9238 |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4849 | if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) { |
Alexander Duyck | 090b179 | 2009-10-27 23:51:55 +0000 | [diff] [blame] | 4850 | dev_err(&pdev->dev, "MTU > 9216 not supported.\n"); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4851 | return -EINVAL; |
| 4852 | } |
| 4853 | |
Alexander Duyck | 2ccd994 | 2013-07-16 00:20:34 +0000 | [diff] [blame] | 4854 | /* adjust max frame to be at least the size of a standard frame */ |
| 4855 | if (max_frame < (ETH_FRAME_LEN + ETH_FCS_LEN)) |
| 4856 | max_frame = ETH_FRAME_LEN + ETH_FCS_LEN; |
| 4857 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4858 | while (test_and_set_bit(__IGB_RESETTING, &adapter->state)) |
| 4859 | msleep(1); |
Alexander Duyck | 73cd78f | 2009-02-12 18:16:59 +0000 | [diff] [blame] | 4860 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4861 | /* igb_down has a dependency on max_frame_size */ |
| 4862 | adapter->max_frame_size = max_frame; |
Alexander Duyck | 559e9c4 | 2009-10-27 23:52:50 +0000 | [diff] [blame] | 4863 | |
Alexander Duyck | 4c84485 | 2009-10-27 15:52:07 +0000 | [diff] [blame] | 4864 | if (netif_running(netdev)) |
| 4865 | igb_down(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4866 | |
Alexander Duyck | 090b179 | 2009-10-27 23:51:55 +0000 | [diff] [blame] | 4867 | dev_info(&pdev->dev, "changing MTU from %d to %d\n", |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4868 | netdev->mtu, new_mtu); |
| 4869 | netdev->mtu = new_mtu; |
| 4870 | |
| 4871 | if (netif_running(netdev)) |
| 4872 | igb_up(adapter); |
| 4873 | else |
| 4874 | igb_reset(adapter); |
| 4875 | |
| 4876 | clear_bit(__IGB_RESETTING, &adapter->state); |
| 4877 | |
| 4878 | return 0; |
| 4879 | } |
| 4880 | |
| 4881 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4882 | * igb_update_stats - Update the board statistics counters |
| 4883 | * @adapter: board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4884 | **/ |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 4885 | void igb_update_stats(struct igb_adapter *adapter, |
| 4886 | struct rtnl_link_stats64 *net_stats) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4887 | { |
| 4888 | struct e1000_hw *hw = &adapter->hw; |
| 4889 | struct pci_dev *pdev = adapter->pdev; |
Mitch Williams | fa3d9a6 | 2010-03-23 18:34:38 +0000 | [diff] [blame] | 4890 | u32 reg, mpc; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4891 | u16 phy_tmp; |
Alexander Duyck | 3f9c016 | 2009-10-27 23:48:12 +0000 | [diff] [blame] | 4892 | int i; |
| 4893 | u64 bytes, packets; |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 4894 | unsigned int start; |
| 4895 | u64 _bytes, _packets; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4896 | |
| 4897 | #define PHY_IDLE_ERROR_COUNT_MASK 0x00FF |
| 4898 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 4899 | /* Prevent stats update while adapter is being reset, or if the pci |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4900 | * connection is down. |
| 4901 | */ |
| 4902 | if (adapter->link_speed == 0) |
| 4903 | return; |
| 4904 | if (pci_channel_offline(pdev)) |
| 4905 | return; |
| 4906 | |
Alexander Duyck | 3f9c016 | 2009-10-27 23:48:12 +0000 | [diff] [blame] | 4907 | bytes = 0; |
| 4908 | packets = 0; |
Akeem G Abodunrin | 7f90128 | 2013-06-27 09:10:23 +0000 | [diff] [blame] | 4909 | |
| 4910 | rcu_read_lock(); |
Alexander Duyck | 3f9c016 | 2009-10-27 23:48:12 +0000 | [diff] [blame] | 4911 | for (i = 0; i < adapter->num_rx_queues; i++) { |
Alexander Duyck | ae1c07a | 2012-08-08 05:23:22 +0000 | [diff] [blame] | 4912 | u32 rqdpc = rd32(E1000_RQDPC(i)); |
Alexander Duyck | 3025a44 | 2010-02-17 01:02:39 +0000 | [diff] [blame] | 4913 | struct igb_ring *ring = adapter->rx_ring[i]; |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 4914 | |
Alexander Duyck | ae1c07a | 2012-08-08 05:23:22 +0000 | [diff] [blame] | 4915 | if (rqdpc) { |
| 4916 | ring->rx_stats.drops += rqdpc; |
| 4917 | net_stats->rx_fifo_errors += rqdpc; |
| 4918 | } |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 4919 | |
| 4920 | do { |
| 4921 | start = u64_stats_fetch_begin_bh(&ring->rx_syncp); |
| 4922 | _bytes = ring->rx_stats.bytes; |
| 4923 | _packets = ring->rx_stats.packets; |
| 4924 | } while (u64_stats_fetch_retry_bh(&ring->rx_syncp, start)); |
| 4925 | bytes += _bytes; |
| 4926 | packets += _packets; |
Alexander Duyck | 3f9c016 | 2009-10-27 23:48:12 +0000 | [diff] [blame] | 4927 | } |
| 4928 | |
Alexander Duyck | 128e45e | 2009-11-12 18:37:38 +0000 | [diff] [blame] | 4929 | net_stats->rx_bytes = bytes; |
| 4930 | net_stats->rx_packets = packets; |
Alexander Duyck | 3f9c016 | 2009-10-27 23:48:12 +0000 | [diff] [blame] | 4931 | |
| 4932 | bytes = 0; |
| 4933 | packets = 0; |
| 4934 | for (i = 0; i < adapter->num_tx_queues; i++) { |
Alexander Duyck | 3025a44 | 2010-02-17 01:02:39 +0000 | [diff] [blame] | 4935 | struct igb_ring *ring = adapter->tx_ring[i]; |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 4936 | do { |
| 4937 | start = u64_stats_fetch_begin_bh(&ring->tx_syncp); |
| 4938 | _bytes = ring->tx_stats.bytes; |
| 4939 | _packets = ring->tx_stats.packets; |
| 4940 | } while (u64_stats_fetch_retry_bh(&ring->tx_syncp, start)); |
| 4941 | bytes += _bytes; |
| 4942 | packets += _packets; |
Alexander Duyck | 3f9c016 | 2009-10-27 23:48:12 +0000 | [diff] [blame] | 4943 | } |
Alexander Duyck | 128e45e | 2009-11-12 18:37:38 +0000 | [diff] [blame] | 4944 | net_stats->tx_bytes = bytes; |
| 4945 | net_stats->tx_packets = packets; |
Akeem G Abodunrin | 7f90128 | 2013-06-27 09:10:23 +0000 | [diff] [blame] | 4946 | rcu_read_unlock(); |
Alexander Duyck | 3f9c016 | 2009-10-27 23:48:12 +0000 | [diff] [blame] | 4947 | |
| 4948 | /* read stats registers */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4949 | adapter->stats.crcerrs += rd32(E1000_CRCERRS); |
| 4950 | adapter->stats.gprc += rd32(E1000_GPRC); |
| 4951 | adapter->stats.gorc += rd32(E1000_GORCL); |
| 4952 | rd32(E1000_GORCH); /* clear GORCL */ |
| 4953 | adapter->stats.bprc += rd32(E1000_BPRC); |
| 4954 | adapter->stats.mprc += rd32(E1000_MPRC); |
| 4955 | adapter->stats.roc += rd32(E1000_ROC); |
| 4956 | |
| 4957 | adapter->stats.prc64 += rd32(E1000_PRC64); |
| 4958 | adapter->stats.prc127 += rd32(E1000_PRC127); |
| 4959 | adapter->stats.prc255 += rd32(E1000_PRC255); |
| 4960 | adapter->stats.prc511 += rd32(E1000_PRC511); |
| 4961 | adapter->stats.prc1023 += rd32(E1000_PRC1023); |
| 4962 | adapter->stats.prc1522 += rd32(E1000_PRC1522); |
| 4963 | adapter->stats.symerrs += rd32(E1000_SYMERRS); |
| 4964 | adapter->stats.sec += rd32(E1000_SEC); |
| 4965 | |
Mitch Williams | fa3d9a6 | 2010-03-23 18:34:38 +0000 | [diff] [blame] | 4966 | mpc = rd32(E1000_MPC); |
| 4967 | adapter->stats.mpc += mpc; |
| 4968 | net_stats->rx_fifo_errors += mpc; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4969 | adapter->stats.scc += rd32(E1000_SCC); |
| 4970 | adapter->stats.ecol += rd32(E1000_ECOL); |
| 4971 | adapter->stats.mcc += rd32(E1000_MCC); |
| 4972 | adapter->stats.latecol += rd32(E1000_LATECOL); |
| 4973 | adapter->stats.dc += rd32(E1000_DC); |
| 4974 | adapter->stats.rlec += rd32(E1000_RLEC); |
| 4975 | adapter->stats.xonrxc += rd32(E1000_XONRXC); |
| 4976 | adapter->stats.xontxc += rd32(E1000_XONTXC); |
| 4977 | adapter->stats.xoffrxc += rd32(E1000_XOFFRXC); |
| 4978 | adapter->stats.xofftxc += rd32(E1000_XOFFTXC); |
| 4979 | adapter->stats.fcruc += rd32(E1000_FCRUC); |
| 4980 | adapter->stats.gptc += rd32(E1000_GPTC); |
| 4981 | adapter->stats.gotc += rd32(E1000_GOTCL); |
| 4982 | rd32(E1000_GOTCH); /* clear GOTCL */ |
Mitch Williams | fa3d9a6 | 2010-03-23 18:34:38 +0000 | [diff] [blame] | 4983 | adapter->stats.rnbc += rd32(E1000_RNBC); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4984 | adapter->stats.ruc += rd32(E1000_RUC); |
| 4985 | adapter->stats.rfc += rd32(E1000_RFC); |
| 4986 | adapter->stats.rjc += rd32(E1000_RJC); |
| 4987 | adapter->stats.tor += rd32(E1000_TORH); |
| 4988 | adapter->stats.tot += rd32(E1000_TOTH); |
| 4989 | adapter->stats.tpr += rd32(E1000_TPR); |
| 4990 | |
| 4991 | adapter->stats.ptc64 += rd32(E1000_PTC64); |
| 4992 | adapter->stats.ptc127 += rd32(E1000_PTC127); |
| 4993 | adapter->stats.ptc255 += rd32(E1000_PTC255); |
| 4994 | adapter->stats.ptc511 += rd32(E1000_PTC511); |
| 4995 | adapter->stats.ptc1023 += rd32(E1000_PTC1023); |
| 4996 | adapter->stats.ptc1522 += rd32(E1000_PTC1522); |
| 4997 | |
| 4998 | adapter->stats.mptc += rd32(E1000_MPTC); |
| 4999 | adapter->stats.bptc += rd32(E1000_BPTC); |
| 5000 | |
Nick Nunley | 2d0b0f6 | 2010-02-17 01:02:59 +0000 | [diff] [blame] | 5001 | adapter->stats.tpt += rd32(E1000_TPT); |
| 5002 | adapter->stats.colc += rd32(E1000_COLC); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5003 | |
| 5004 | adapter->stats.algnerrc += rd32(E1000_ALGNERRC); |
Nick Nunley | 43915c7c | 2010-02-17 01:03:58 +0000 | [diff] [blame] | 5005 | /* read internal phy specific stats */ |
| 5006 | reg = rd32(E1000_CTRL_EXT); |
| 5007 | if (!(reg & E1000_CTRL_EXT_LINK_MODE_MASK)) { |
| 5008 | adapter->stats.rxerrc += rd32(E1000_RXERRC); |
Carolyn Wyborny | 3dbdf96 | 2012-09-12 04:36:24 +0000 | [diff] [blame] | 5009 | |
| 5010 | /* this stat has invalid values on i210/i211 */ |
| 5011 | if ((hw->mac.type != e1000_i210) && |
| 5012 | (hw->mac.type != e1000_i211)) |
| 5013 | adapter->stats.tncrs += rd32(E1000_TNCRS); |
Nick Nunley | 43915c7c | 2010-02-17 01:03:58 +0000 | [diff] [blame] | 5014 | } |
| 5015 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5016 | adapter->stats.tsctc += rd32(E1000_TSCTC); |
| 5017 | adapter->stats.tsctfc += rd32(E1000_TSCTFC); |
| 5018 | |
| 5019 | adapter->stats.iac += rd32(E1000_IAC); |
| 5020 | adapter->stats.icrxoc += rd32(E1000_ICRXOC); |
| 5021 | adapter->stats.icrxptc += rd32(E1000_ICRXPTC); |
| 5022 | adapter->stats.icrxatc += rd32(E1000_ICRXATC); |
| 5023 | adapter->stats.ictxptc += rd32(E1000_ICTXPTC); |
| 5024 | adapter->stats.ictxatc += rd32(E1000_ICTXATC); |
| 5025 | adapter->stats.ictxqec += rd32(E1000_ICTXQEC); |
| 5026 | adapter->stats.ictxqmtc += rd32(E1000_ICTXQMTC); |
| 5027 | adapter->stats.icrxdmtc += rd32(E1000_ICRXDMTC); |
| 5028 | |
| 5029 | /* Fill out the OS statistics structure */ |
Alexander Duyck | 128e45e | 2009-11-12 18:37:38 +0000 | [diff] [blame] | 5030 | net_stats->multicast = adapter->stats.mprc; |
| 5031 | net_stats->collisions = adapter->stats.colc; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5032 | |
| 5033 | /* Rx Errors */ |
| 5034 | |
| 5035 | /* RLEC on some newer hardware can be incorrect so build |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5036 | * our own version based on RUC and ROC |
| 5037 | */ |
Alexander Duyck | 128e45e | 2009-11-12 18:37:38 +0000 | [diff] [blame] | 5038 | net_stats->rx_errors = adapter->stats.rxerrc + |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5039 | adapter->stats.crcerrs + adapter->stats.algnerrc + |
| 5040 | adapter->stats.ruc + adapter->stats.roc + |
| 5041 | adapter->stats.cexterr; |
Alexander Duyck | 128e45e | 2009-11-12 18:37:38 +0000 | [diff] [blame] | 5042 | net_stats->rx_length_errors = adapter->stats.ruc + |
| 5043 | adapter->stats.roc; |
| 5044 | net_stats->rx_crc_errors = adapter->stats.crcerrs; |
| 5045 | net_stats->rx_frame_errors = adapter->stats.algnerrc; |
| 5046 | net_stats->rx_missed_errors = adapter->stats.mpc; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5047 | |
| 5048 | /* Tx Errors */ |
Alexander Duyck | 128e45e | 2009-11-12 18:37:38 +0000 | [diff] [blame] | 5049 | net_stats->tx_errors = adapter->stats.ecol + |
| 5050 | adapter->stats.latecol; |
| 5051 | net_stats->tx_aborted_errors = adapter->stats.ecol; |
| 5052 | net_stats->tx_window_errors = adapter->stats.latecol; |
| 5053 | net_stats->tx_carrier_errors = adapter->stats.tncrs; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5054 | |
| 5055 | /* Tx Dropped needs to be maintained elsewhere */ |
| 5056 | |
| 5057 | /* Phy Stats */ |
| 5058 | if (hw->phy.media_type == e1000_media_type_copper) { |
| 5059 | if ((adapter->link_speed == SPEED_1000) && |
Alexander Duyck | 73cd78f | 2009-02-12 18:16:59 +0000 | [diff] [blame] | 5060 | (!igb_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5061 | phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK; |
| 5062 | adapter->phy_stats.idle_errors += phy_tmp; |
| 5063 | } |
| 5064 | } |
| 5065 | |
| 5066 | /* Management Stats */ |
| 5067 | adapter->stats.mgptc += rd32(E1000_MGTPTC); |
| 5068 | adapter->stats.mgprc += rd32(E1000_MGTPRC); |
| 5069 | adapter->stats.mgpdc += rd32(E1000_MGTPDC); |
Carolyn Wyborny | 0a915b9 | 2011-02-26 07:42:37 +0000 | [diff] [blame] | 5070 | |
| 5071 | /* OS2BMC Stats */ |
| 5072 | reg = rd32(E1000_MANC); |
| 5073 | if (reg & E1000_MANC_EN_BMC2OS) { |
| 5074 | adapter->stats.o2bgptc += rd32(E1000_O2BGPTC); |
| 5075 | adapter->stats.o2bspc += rd32(E1000_O2BSPC); |
| 5076 | adapter->stats.b2ospc += rd32(E1000_B2OSPC); |
| 5077 | adapter->stats.b2ogprc += rd32(E1000_B2OGPRC); |
| 5078 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5079 | } |
| 5080 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5081 | static irqreturn_t igb_msix_other(int irq, void *data) |
| 5082 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5083 | struct igb_adapter *adapter = data; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5084 | struct e1000_hw *hw = &adapter->hw; |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 5085 | u32 icr = rd32(E1000_ICR); |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 5086 | /* reading ICR causes bit 31 of EICR to be cleared */ |
Alexander Duyck | dda0e08 | 2009-02-06 23:19:08 +0000 | [diff] [blame] | 5087 | |
Alexander Duyck | 7f081d4 | 2010-01-07 17:41:00 +0000 | [diff] [blame] | 5088 | if (icr & E1000_ICR_DRSTA) |
| 5089 | schedule_work(&adapter->reset_task); |
| 5090 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5091 | if (icr & E1000_ICR_DOUTSYNC) { |
Alexander Duyck | dda0e08 | 2009-02-06 23:19:08 +0000 | [diff] [blame] | 5092 | /* HW is reporting DMA is out of sync */ |
| 5093 | adapter->stats.doosync++; |
Greg Rose | 1380046 | 2010-11-06 02:08:26 +0000 | [diff] [blame] | 5094 | /* The DMA Out of Sync is also indication of a spoof event |
| 5095 | * in IOV mode. Check the Wrong VM Behavior register to |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5096 | * see if it is really a spoof event. |
| 5097 | */ |
Greg Rose | 1380046 | 2010-11-06 02:08:26 +0000 | [diff] [blame] | 5098 | igb_check_wvbr(adapter); |
Alexander Duyck | dda0e08 | 2009-02-06 23:19:08 +0000 | [diff] [blame] | 5099 | } |
Alexander Duyck | eebbbdb | 2009-02-06 23:19:29 +0000 | [diff] [blame] | 5100 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5101 | /* Check for a mailbox event */ |
| 5102 | if (icr & E1000_ICR_VMMB) |
| 5103 | igb_msg_task(adapter); |
| 5104 | |
| 5105 | if (icr & E1000_ICR_LSC) { |
| 5106 | hw->mac.get_link_status = 1; |
| 5107 | /* guard against interrupt when we're going down */ |
| 5108 | if (!test_bit(__IGB_DOWN, &adapter->state)) |
| 5109 | mod_timer(&adapter->watchdog_timer, jiffies + 1); |
| 5110 | } |
| 5111 | |
Matthew Vick | 1f6e817 | 2012-08-18 07:26:33 +0000 | [diff] [blame] | 5112 | if (icr & E1000_ICR_TS) { |
| 5113 | u32 tsicr = rd32(E1000_TSICR); |
| 5114 | |
| 5115 | if (tsicr & E1000_TSICR_TXTS) { |
| 5116 | /* acknowledge the interrupt */ |
| 5117 | wr32(E1000_TSICR, E1000_TSICR_TXTS); |
| 5118 | /* retrieve hardware timestamp */ |
| 5119 | schedule_work(&adapter->ptp_tx_work); |
| 5120 | } |
| 5121 | } |
Matthew Vick | 1f6e817 | 2012-08-18 07:26:33 +0000 | [diff] [blame] | 5122 | |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 5123 | wr32(E1000_EIMS, adapter->eims_other); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5124 | |
| 5125 | return IRQ_HANDLED; |
| 5126 | } |
| 5127 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5128 | static void igb_write_itr(struct igb_q_vector *q_vector) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5129 | { |
Alexander Duyck | 26b3927 | 2010-02-17 01:00:41 +0000 | [diff] [blame] | 5130 | struct igb_adapter *adapter = q_vector->adapter; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5131 | u32 itr_val = q_vector->itr_val & 0x7FFC; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5132 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5133 | if (!q_vector->set_itr) |
| 5134 | return; |
Alexander Duyck | 73cd78f | 2009-02-12 18:16:59 +0000 | [diff] [blame] | 5135 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5136 | if (!itr_val) |
| 5137 | itr_val = 0x4; |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 5138 | |
Alexander Duyck | 26b3927 | 2010-02-17 01:00:41 +0000 | [diff] [blame] | 5139 | if (adapter->hw.mac.type == e1000_82575) |
| 5140 | itr_val |= itr_val << 16; |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 5141 | else |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 5142 | itr_val |= E1000_EITR_CNT_IGNR; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5143 | |
| 5144 | writel(itr_val, q_vector->itr_register); |
| 5145 | q_vector->set_itr = 0; |
| 5146 | } |
| 5147 | |
| 5148 | static irqreturn_t igb_msix_ring(int irq, void *data) |
| 5149 | { |
| 5150 | struct igb_q_vector *q_vector = data; |
| 5151 | |
| 5152 | /* Write the ITR value calculated from the previous interrupt. */ |
| 5153 | igb_write_itr(q_vector); |
| 5154 | |
| 5155 | napi_schedule(&q_vector->napi); |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 5156 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5157 | return IRQ_HANDLED; |
| 5158 | } |
| 5159 | |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 5160 | #ifdef CONFIG_IGB_DCA |
Alexander Duyck | 6a05004 | 2012-09-25 00:31:27 +0000 | [diff] [blame] | 5161 | static void igb_update_tx_dca(struct igb_adapter *adapter, |
| 5162 | struct igb_ring *tx_ring, |
| 5163 | int cpu) |
| 5164 | { |
| 5165 | struct e1000_hw *hw = &adapter->hw; |
| 5166 | u32 txctrl = dca3_get_tag(tx_ring->dev, cpu); |
| 5167 | |
| 5168 | if (hw->mac.type != e1000_82575) |
| 5169 | txctrl <<= E1000_DCA_TXCTRL_CPUID_SHIFT; |
| 5170 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5171 | /* We can enable relaxed ordering for reads, but not writes when |
Alexander Duyck | 6a05004 | 2012-09-25 00:31:27 +0000 | [diff] [blame] | 5172 | * DCA is enabled. This is due to a known issue in some chipsets |
| 5173 | * which will cause the DCA tag to be cleared. |
| 5174 | */ |
| 5175 | txctrl |= E1000_DCA_TXCTRL_DESC_RRO_EN | |
| 5176 | E1000_DCA_TXCTRL_DATA_RRO_EN | |
| 5177 | E1000_DCA_TXCTRL_DESC_DCA_EN; |
| 5178 | |
| 5179 | wr32(E1000_DCA_TXCTRL(tx_ring->reg_idx), txctrl); |
| 5180 | } |
| 5181 | |
| 5182 | static void igb_update_rx_dca(struct igb_adapter *adapter, |
| 5183 | struct igb_ring *rx_ring, |
| 5184 | int cpu) |
| 5185 | { |
| 5186 | struct e1000_hw *hw = &adapter->hw; |
| 5187 | u32 rxctrl = dca3_get_tag(&adapter->pdev->dev, cpu); |
| 5188 | |
| 5189 | if (hw->mac.type != e1000_82575) |
| 5190 | rxctrl <<= E1000_DCA_RXCTRL_CPUID_SHIFT; |
| 5191 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5192 | /* We can enable relaxed ordering for reads, but not writes when |
Alexander Duyck | 6a05004 | 2012-09-25 00:31:27 +0000 | [diff] [blame] | 5193 | * DCA is enabled. This is due to a known issue in some chipsets |
| 5194 | * which will cause the DCA tag to be cleared. |
| 5195 | */ |
| 5196 | rxctrl |= E1000_DCA_RXCTRL_DESC_RRO_EN | |
| 5197 | E1000_DCA_RXCTRL_DESC_DCA_EN; |
| 5198 | |
| 5199 | wr32(E1000_DCA_RXCTRL(rx_ring->reg_idx), rxctrl); |
| 5200 | } |
| 5201 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5202 | static void igb_update_dca(struct igb_q_vector *q_vector) |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5203 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5204 | struct igb_adapter *adapter = q_vector->adapter; |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5205 | int cpu = get_cpu(); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5206 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5207 | if (q_vector->cpu == cpu) |
| 5208 | goto out_no_update; |
| 5209 | |
Alexander Duyck | 6a05004 | 2012-09-25 00:31:27 +0000 | [diff] [blame] | 5210 | if (q_vector->tx.ring) |
| 5211 | igb_update_tx_dca(adapter, q_vector->tx.ring, cpu); |
| 5212 | |
| 5213 | if (q_vector->rx.ring) |
| 5214 | igb_update_rx_dca(adapter, q_vector->rx.ring, cpu); |
| 5215 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5216 | q_vector->cpu = cpu; |
| 5217 | out_no_update: |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5218 | put_cpu(); |
| 5219 | } |
| 5220 | |
| 5221 | static void igb_setup_dca(struct igb_adapter *adapter) |
| 5222 | { |
Alexander Duyck | 7e0e99e | 2009-05-21 13:06:56 +0000 | [diff] [blame] | 5223 | struct e1000_hw *hw = &adapter->hw; |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5224 | int i; |
| 5225 | |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 5226 | if (!(adapter->flags & IGB_FLAG_DCA_ENABLED)) |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5227 | return; |
| 5228 | |
Alexander Duyck | 7e0e99e | 2009-05-21 13:06:56 +0000 | [diff] [blame] | 5229 | /* Always use CB2 mode, difference is masked in the CB driver. */ |
| 5230 | wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_CB2); |
| 5231 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5232 | for (i = 0; i < adapter->num_q_vectors; i++) { |
Alexander Duyck | 26b3927 | 2010-02-17 01:00:41 +0000 | [diff] [blame] | 5233 | adapter->q_vector[i]->cpu = -1; |
| 5234 | igb_update_dca(adapter->q_vector[i]); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5235 | } |
| 5236 | } |
| 5237 | |
| 5238 | static int __igb_notify_dca(struct device *dev, void *data) |
| 5239 | { |
| 5240 | struct net_device *netdev = dev_get_drvdata(dev); |
| 5241 | struct igb_adapter *adapter = netdev_priv(netdev); |
Alexander Duyck | 090b179 | 2009-10-27 23:51:55 +0000 | [diff] [blame] | 5242 | struct pci_dev *pdev = adapter->pdev; |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5243 | struct e1000_hw *hw = &adapter->hw; |
| 5244 | unsigned long event = *(unsigned long *)data; |
| 5245 | |
| 5246 | switch (event) { |
| 5247 | case DCA_PROVIDER_ADD: |
| 5248 | /* if already enabled, don't do it again */ |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 5249 | if (adapter->flags & IGB_FLAG_DCA_ENABLED) |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5250 | break; |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5251 | if (dca_add_requester(dev) == 0) { |
Alexander Duyck | bbd98fe | 2009-01-31 00:52:30 -0800 | [diff] [blame] | 5252 | adapter->flags |= IGB_FLAG_DCA_ENABLED; |
Alexander Duyck | 090b179 | 2009-10-27 23:51:55 +0000 | [diff] [blame] | 5253 | dev_info(&pdev->dev, "DCA enabled\n"); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5254 | igb_setup_dca(adapter); |
| 5255 | break; |
| 5256 | } |
| 5257 | /* Fall Through since DCA is disabled. */ |
| 5258 | case DCA_PROVIDER_REMOVE: |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 5259 | if (adapter->flags & IGB_FLAG_DCA_ENABLED) { |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5260 | /* without this a class_device is left |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5261 | * hanging around in the sysfs model |
| 5262 | */ |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5263 | dca_remove_requester(dev); |
Alexander Duyck | 090b179 | 2009-10-27 23:51:55 +0000 | [diff] [blame] | 5264 | dev_info(&pdev->dev, "DCA disabled\n"); |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 5265 | adapter->flags &= ~IGB_FLAG_DCA_ENABLED; |
Alexander Duyck | cbd347a | 2009-02-15 23:59:44 -0800 | [diff] [blame] | 5266 | wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_DISABLE); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5267 | } |
| 5268 | break; |
| 5269 | } |
Alexander Duyck | bbd98fe | 2009-01-31 00:52:30 -0800 | [diff] [blame] | 5270 | |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5271 | return 0; |
| 5272 | } |
| 5273 | |
| 5274 | static int igb_notify_dca(struct notifier_block *nb, unsigned long event, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5275 | void *p) |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5276 | { |
| 5277 | int ret_val; |
| 5278 | |
| 5279 | ret_val = driver_for_each_device(&igb_driver.driver, NULL, &event, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5280 | __igb_notify_dca); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 5281 | |
| 5282 | return ret_val ? NOTIFY_BAD : NOTIFY_DONE; |
| 5283 | } |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 5284 | #endif /* CONFIG_IGB_DCA */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5285 | |
Greg Rose | 0224d66 | 2011-10-14 02:57:14 +0000 | [diff] [blame] | 5286 | #ifdef CONFIG_PCI_IOV |
| 5287 | static int igb_vf_configure(struct igb_adapter *adapter, int vf) |
| 5288 | { |
| 5289 | unsigned char mac_addr[ETH_ALEN]; |
Greg Rose | 0224d66 | 2011-10-14 02:57:14 +0000 | [diff] [blame] | 5290 | |
Mitch A Williams | 5ac6f91 | 2013-01-18 08:57:20 +0000 | [diff] [blame] | 5291 | eth_zero_addr(mac_addr); |
Greg Rose | 0224d66 | 2011-10-14 02:57:14 +0000 | [diff] [blame] | 5292 | igb_set_vf_mac(adapter, vf, mac_addr); |
| 5293 | |
Lior Levy | 70ea478 | 2013-03-03 20:27:48 +0000 | [diff] [blame] | 5294 | /* By default spoof check is enabled for all VFs */ |
| 5295 | adapter->vf_data[vf].spoofchk_enabled = true; |
| 5296 | |
Stefan Assmann | f557147 | 2012-08-18 04:06:11 +0000 | [diff] [blame] | 5297 | return 0; |
Greg Rose | 0224d66 | 2011-10-14 02:57:14 +0000 | [diff] [blame] | 5298 | } |
| 5299 | |
Greg Rose | 0224d66 | 2011-10-14 02:57:14 +0000 | [diff] [blame] | 5300 | #endif |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5301 | static void igb_ping_all_vfs(struct igb_adapter *adapter) |
| 5302 | { |
| 5303 | struct e1000_hw *hw = &adapter->hw; |
| 5304 | u32 ping; |
| 5305 | int i; |
| 5306 | |
| 5307 | for (i = 0 ; i < adapter->vfs_allocated_count; i++) { |
| 5308 | ping = E1000_PF_CONTROL_MSG; |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5309 | if (adapter->vf_data[i].flags & IGB_VF_FLAG_CTS) |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5310 | ping |= E1000_VT_MSGTYPE_CTS; |
| 5311 | igb_write_mbx(hw, &ping, 1, i); |
| 5312 | } |
| 5313 | } |
| 5314 | |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 5315 | static int igb_set_vf_promisc(struct igb_adapter *adapter, u32 *msgbuf, u32 vf) |
| 5316 | { |
| 5317 | struct e1000_hw *hw = &adapter->hw; |
| 5318 | u32 vmolr = rd32(E1000_VMOLR(vf)); |
| 5319 | struct vf_data_storage *vf_data = &adapter->vf_data[vf]; |
| 5320 | |
Alexander Duyck | d85b9004 | 2010-09-22 17:56:20 +0000 | [diff] [blame] | 5321 | vf_data->flags &= ~(IGB_VF_FLAG_UNI_PROMISC | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5322 | IGB_VF_FLAG_MULTI_PROMISC); |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 5323 | vmolr &= ~(E1000_VMOLR_ROPE | E1000_VMOLR_ROMPE | E1000_VMOLR_MPME); |
| 5324 | |
| 5325 | if (*msgbuf & E1000_VF_SET_PROMISC_MULTICAST) { |
| 5326 | vmolr |= E1000_VMOLR_MPME; |
Alexander Duyck | d85b9004 | 2010-09-22 17:56:20 +0000 | [diff] [blame] | 5327 | vf_data->flags |= IGB_VF_FLAG_MULTI_PROMISC; |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 5328 | *msgbuf &= ~E1000_VF_SET_PROMISC_MULTICAST; |
| 5329 | } else { |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5330 | /* if we have hashes and we are clearing a multicast promisc |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 5331 | * flag we need to write the hashes to the MTA as this step |
| 5332 | * was previously skipped |
| 5333 | */ |
| 5334 | if (vf_data->num_vf_mc_hashes > 30) { |
| 5335 | vmolr |= E1000_VMOLR_MPME; |
| 5336 | } else if (vf_data->num_vf_mc_hashes) { |
| 5337 | int j; |
| 5338 | vmolr |= E1000_VMOLR_ROMPE; |
| 5339 | for (j = 0; j < vf_data->num_vf_mc_hashes; j++) |
| 5340 | igb_mta_set(hw, vf_data->vf_mc_hashes[j]); |
| 5341 | } |
| 5342 | } |
| 5343 | |
| 5344 | wr32(E1000_VMOLR(vf), vmolr); |
| 5345 | |
| 5346 | /* there are flags left unprocessed, likely not supported */ |
| 5347 | if (*msgbuf & E1000_VT_MSGINFO_MASK) |
| 5348 | return -EINVAL; |
| 5349 | |
| 5350 | return 0; |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 5351 | } |
| 5352 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5353 | static int igb_set_vf_multicasts(struct igb_adapter *adapter, |
| 5354 | u32 *msgbuf, u32 vf) |
| 5355 | { |
| 5356 | int n = (msgbuf[0] & E1000_VT_MSGINFO_MASK) >> E1000_VT_MSGINFO_SHIFT; |
| 5357 | u16 *hash_list = (u16 *)&msgbuf[1]; |
| 5358 | struct vf_data_storage *vf_data = &adapter->vf_data[vf]; |
| 5359 | int i; |
| 5360 | |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 5361 | /* salt away the number of multicast addresses assigned |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5362 | * to this VF for later use to restore when the PF multi cast |
| 5363 | * list changes |
| 5364 | */ |
| 5365 | vf_data->num_vf_mc_hashes = n; |
| 5366 | |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 5367 | /* only up to 30 hash values supported */ |
| 5368 | if (n > 30) |
| 5369 | n = 30; |
| 5370 | |
| 5371 | /* store the hashes for later use */ |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5372 | for (i = 0; i < n; i++) |
Joe Perches | a419aef | 2009-08-18 11:18:35 -0700 | [diff] [blame] | 5373 | vf_data->vf_mc_hashes[i] = hash_list[i]; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5374 | |
| 5375 | /* Flush and reset the mta with the new values */ |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 5376 | igb_set_rx_mode(adapter->netdev); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5377 | |
| 5378 | return 0; |
| 5379 | } |
| 5380 | |
| 5381 | static void igb_restore_vf_multicasts(struct igb_adapter *adapter) |
| 5382 | { |
| 5383 | struct e1000_hw *hw = &adapter->hw; |
| 5384 | struct vf_data_storage *vf_data; |
| 5385 | int i, j; |
| 5386 | |
| 5387 | for (i = 0; i < adapter->vfs_allocated_count; i++) { |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 5388 | u32 vmolr = rd32(E1000_VMOLR(i)); |
| 5389 | vmolr &= ~(E1000_VMOLR_ROMPE | E1000_VMOLR_MPME); |
| 5390 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5391 | vf_data = &adapter->vf_data[i]; |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 5392 | |
| 5393 | if ((vf_data->num_vf_mc_hashes > 30) || |
| 5394 | (vf_data->flags & IGB_VF_FLAG_MULTI_PROMISC)) { |
| 5395 | vmolr |= E1000_VMOLR_MPME; |
| 5396 | } else if (vf_data->num_vf_mc_hashes) { |
| 5397 | vmolr |= E1000_VMOLR_ROMPE; |
| 5398 | for (j = 0; j < vf_data->num_vf_mc_hashes; j++) |
| 5399 | igb_mta_set(hw, vf_data->vf_mc_hashes[j]); |
| 5400 | } |
| 5401 | wr32(E1000_VMOLR(i), vmolr); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5402 | } |
| 5403 | } |
| 5404 | |
| 5405 | static void igb_clear_vf_vfta(struct igb_adapter *adapter, u32 vf) |
| 5406 | { |
| 5407 | struct e1000_hw *hw = &adapter->hw; |
| 5408 | u32 pool_mask, reg, vid; |
| 5409 | int i; |
| 5410 | |
| 5411 | pool_mask = 1 << (E1000_VLVF_POOLSEL_SHIFT + vf); |
| 5412 | |
| 5413 | /* Find the vlan filter for this id */ |
| 5414 | for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) { |
| 5415 | reg = rd32(E1000_VLVF(i)); |
| 5416 | |
| 5417 | /* remove the vf from the pool */ |
| 5418 | reg &= ~pool_mask; |
| 5419 | |
| 5420 | /* if pool is empty then remove entry from vfta */ |
| 5421 | if (!(reg & E1000_VLVF_POOLSEL_MASK) && |
| 5422 | (reg & E1000_VLVF_VLANID_ENABLE)) { |
| 5423 | reg = 0; |
| 5424 | vid = reg & E1000_VLVF_VLANID_MASK; |
| 5425 | igb_vfta_set(hw, vid, false); |
| 5426 | } |
| 5427 | |
| 5428 | wr32(E1000_VLVF(i), reg); |
| 5429 | } |
Alexander Duyck | ae641bd | 2009-09-03 14:49:33 +0000 | [diff] [blame] | 5430 | |
| 5431 | adapter->vf_data[vf].vlans_enabled = 0; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5432 | } |
| 5433 | |
| 5434 | static s32 igb_vlvf_set(struct igb_adapter *adapter, u32 vid, bool add, u32 vf) |
| 5435 | { |
| 5436 | struct e1000_hw *hw = &adapter->hw; |
| 5437 | u32 reg, i; |
| 5438 | |
Alexander Duyck | 5146623 | 2009-10-27 23:47:35 +0000 | [diff] [blame] | 5439 | /* The vlvf table only exists on 82576 hardware and newer */ |
| 5440 | if (hw->mac.type < e1000_82576) |
| 5441 | return -1; |
| 5442 | |
| 5443 | /* we only need to do this if VMDq is enabled */ |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5444 | if (!adapter->vfs_allocated_count) |
| 5445 | return -1; |
| 5446 | |
| 5447 | /* Find the vlan filter for this id */ |
| 5448 | for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) { |
| 5449 | reg = rd32(E1000_VLVF(i)); |
| 5450 | if ((reg & E1000_VLVF_VLANID_ENABLE) && |
| 5451 | vid == (reg & E1000_VLVF_VLANID_MASK)) |
| 5452 | break; |
| 5453 | } |
| 5454 | |
| 5455 | if (add) { |
| 5456 | if (i == E1000_VLVF_ARRAY_SIZE) { |
| 5457 | /* Did not find a matching VLAN ID entry that was |
| 5458 | * enabled. Search for a free filter entry, i.e. |
| 5459 | * one without the enable bit set |
| 5460 | */ |
| 5461 | for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) { |
| 5462 | reg = rd32(E1000_VLVF(i)); |
| 5463 | if (!(reg & E1000_VLVF_VLANID_ENABLE)) |
| 5464 | break; |
| 5465 | } |
| 5466 | } |
| 5467 | if (i < E1000_VLVF_ARRAY_SIZE) { |
| 5468 | /* Found an enabled/available entry */ |
| 5469 | reg |= 1 << (E1000_VLVF_POOLSEL_SHIFT + vf); |
| 5470 | |
| 5471 | /* if !enabled we need to set this up in vfta */ |
| 5472 | if (!(reg & E1000_VLVF_VLANID_ENABLE)) { |
Alexander Duyck | 5146623 | 2009-10-27 23:47:35 +0000 | [diff] [blame] | 5473 | /* add VID to filter table */ |
| 5474 | igb_vfta_set(hw, vid, true); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5475 | reg |= E1000_VLVF_VLANID_ENABLE; |
| 5476 | } |
Alexander Duyck | cad6d05 | 2009-03-13 20:41:37 +0000 | [diff] [blame] | 5477 | reg &= ~E1000_VLVF_VLANID_MASK; |
| 5478 | reg |= vid; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5479 | wr32(E1000_VLVF(i), reg); |
Alexander Duyck | ae641bd | 2009-09-03 14:49:33 +0000 | [diff] [blame] | 5480 | |
| 5481 | /* do not modify RLPML for PF devices */ |
| 5482 | if (vf >= adapter->vfs_allocated_count) |
| 5483 | return 0; |
| 5484 | |
| 5485 | if (!adapter->vf_data[vf].vlans_enabled) { |
| 5486 | u32 size; |
| 5487 | reg = rd32(E1000_VMOLR(vf)); |
| 5488 | size = reg & E1000_VMOLR_RLPML_MASK; |
| 5489 | size += 4; |
| 5490 | reg &= ~E1000_VMOLR_RLPML_MASK; |
| 5491 | reg |= size; |
| 5492 | wr32(E1000_VMOLR(vf), reg); |
| 5493 | } |
Alexander Duyck | ae641bd | 2009-09-03 14:49:33 +0000 | [diff] [blame] | 5494 | |
Alexander Duyck | 5146623 | 2009-10-27 23:47:35 +0000 | [diff] [blame] | 5495 | adapter->vf_data[vf].vlans_enabled++; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5496 | } |
| 5497 | } else { |
| 5498 | if (i < E1000_VLVF_ARRAY_SIZE) { |
| 5499 | /* remove vf from the pool */ |
| 5500 | reg &= ~(1 << (E1000_VLVF_POOLSEL_SHIFT + vf)); |
| 5501 | /* if pool is empty then remove entry from vfta */ |
| 5502 | if (!(reg & E1000_VLVF_POOLSEL_MASK)) { |
| 5503 | reg = 0; |
| 5504 | igb_vfta_set(hw, vid, false); |
| 5505 | } |
| 5506 | wr32(E1000_VLVF(i), reg); |
Alexander Duyck | ae641bd | 2009-09-03 14:49:33 +0000 | [diff] [blame] | 5507 | |
| 5508 | /* do not modify RLPML for PF devices */ |
| 5509 | if (vf >= adapter->vfs_allocated_count) |
| 5510 | return 0; |
| 5511 | |
| 5512 | adapter->vf_data[vf].vlans_enabled--; |
| 5513 | if (!adapter->vf_data[vf].vlans_enabled) { |
| 5514 | u32 size; |
| 5515 | reg = rd32(E1000_VMOLR(vf)); |
| 5516 | size = reg & E1000_VMOLR_RLPML_MASK; |
| 5517 | size -= 4; |
| 5518 | reg &= ~E1000_VMOLR_RLPML_MASK; |
| 5519 | reg |= size; |
| 5520 | wr32(E1000_VMOLR(vf), reg); |
| 5521 | } |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5522 | } |
| 5523 | } |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 5524 | return 0; |
| 5525 | } |
| 5526 | |
| 5527 | static void igb_set_vmvir(struct igb_adapter *adapter, u32 vid, u32 vf) |
| 5528 | { |
| 5529 | struct e1000_hw *hw = &adapter->hw; |
| 5530 | |
| 5531 | if (vid) |
| 5532 | wr32(E1000_VMVIR(vf), (vid | E1000_VMVIR_VLANA_DEFAULT)); |
| 5533 | else |
| 5534 | wr32(E1000_VMVIR(vf), 0); |
| 5535 | } |
| 5536 | |
| 5537 | static int igb_ndo_set_vf_vlan(struct net_device *netdev, |
| 5538 | int vf, u16 vlan, u8 qos) |
| 5539 | { |
| 5540 | int err = 0; |
| 5541 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 5542 | |
| 5543 | if ((vf >= adapter->vfs_allocated_count) || (vlan > 4095) || (qos > 7)) |
| 5544 | return -EINVAL; |
| 5545 | if (vlan || qos) { |
| 5546 | err = igb_vlvf_set(adapter, vlan, !!vlan, vf); |
| 5547 | if (err) |
| 5548 | goto out; |
| 5549 | igb_set_vmvir(adapter, vlan | (qos << VLAN_PRIO_SHIFT), vf); |
| 5550 | igb_set_vmolr(adapter, vf, !vlan); |
| 5551 | adapter->vf_data[vf].pf_vlan = vlan; |
| 5552 | adapter->vf_data[vf].pf_qos = qos; |
| 5553 | dev_info(&adapter->pdev->dev, |
| 5554 | "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf); |
| 5555 | if (test_bit(__IGB_DOWN, &adapter->state)) { |
| 5556 | dev_warn(&adapter->pdev->dev, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5557 | "The VF VLAN has been set, but the PF device is not up.\n"); |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 5558 | dev_warn(&adapter->pdev->dev, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5559 | "Bring the PF device up before attempting to use the VF device.\n"); |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 5560 | } |
| 5561 | } else { |
| 5562 | igb_vlvf_set(adapter, adapter->vf_data[vf].pf_vlan, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5563 | false, vf); |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 5564 | igb_set_vmvir(adapter, vlan, vf); |
| 5565 | igb_set_vmolr(adapter, vf, true); |
| 5566 | adapter->vf_data[vf].pf_vlan = 0; |
| 5567 | adapter->vf_data[vf].pf_qos = 0; |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5568 | } |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 5569 | out: |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5570 | return err; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5571 | } |
| 5572 | |
Greg Rose | 6f3dc319 | 2013-03-26 06:19:41 +0000 | [diff] [blame] | 5573 | static int igb_find_vlvf_entry(struct igb_adapter *adapter, int vid) |
| 5574 | { |
| 5575 | struct e1000_hw *hw = &adapter->hw; |
| 5576 | int i; |
| 5577 | u32 reg; |
| 5578 | |
| 5579 | /* Find the vlan filter for this id */ |
| 5580 | for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) { |
| 5581 | reg = rd32(E1000_VLVF(i)); |
| 5582 | if ((reg & E1000_VLVF_VLANID_ENABLE) && |
| 5583 | vid == (reg & E1000_VLVF_VLANID_MASK)) |
| 5584 | break; |
| 5585 | } |
| 5586 | |
| 5587 | if (i >= E1000_VLVF_ARRAY_SIZE) |
| 5588 | i = -1; |
| 5589 | |
| 5590 | return i; |
| 5591 | } |
| 5592 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5593 | static int igb_set_vf_vlan(struct igb_adapter *adapter, u32 *msgbuf, u32 vf) |
| 5594 | { |
Greg Rose | 6f3dc319 | 2013-03-26 06:19:41 +0000 | [diff] [blame] | 5595 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5596 | int add = (msgbuf[0] & E1000_VT_MSGINFO_MASK) >> E1000_VT_MSGINFO_SHIFT; |
| 5597 | int vid = (msgbuf[1] & E1000_VLVF_VLANID_MASK); |
Greg Rose | 6f3dc319 | 2013-03-26 06:19:41 +0000 | [diff] [blame] | 5598 | int err = 0; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5599 | |
Greg Rose | 6f3dc319 | 2013-03-26 06:19:41 +0000 | [diff] [blame] | 5600 | /* If in promiscuous mode we need to make sure the PF also has |
| 5601 | * the VLAN filter set. |
| 5602 | */ |
| 5603 | if (add && (adapter->netdev->flags & IFF_PROMISC)) |
| 5604 | err = igb_vlvf_set(adapter, vid, add, |
| 5605 | adapter->vfs_allocated_count); |
| 5606 | if (err) |
| 5607 | goto out; |
| 5608 | |
| 5609 | err = igb_vlvf_set(adapter, vid, add, vf); |
| 5610 | |
| 5611 | if (err) |
| 5612 | goto out; |
| 5613 | |
| 5614 | /* Go through all the checks to see if the VLAN filter should |
| 5615 | * be wiped completely. |
| 5616 | */ |
| 5617 | if (!add && (adapter->netdev->flags & IFF_PROMISC)) { |
| 5618 | u32 vlvf, bits; |
| 5619 | |
| 5620 | int regndx = igb_find_vlvf_entry(adapter, vid); |
| 5621 | if (regndx < 0) |
| 5622 | goto out; |
| 5623 | /* See if any other pools are set for this VLAN filter |
| 5624 | * entry other than the PF. |
| 5625 | */ |
| 5626 | vlvf = bits = rd32(E1000_VLVF(regndx)); |
| 5627 | bits &= 1 << (E1000_VLVF_POOLSEL_SHIFT + |
| 5628 | adapter->vfs_allocated_count); |
| 5629 | /* If the filter was removed then ensure PF pool bit |
| 5630 | * is cleared if the PF only added itself to the pool |
| 5631 | * because the PF is in promiscuous mode. |
| 5632 | */ |
| 5633 | if ((vlvf & VLAN_VID_MASK) == vid && |
| 5634 | !test_bit(vid, adapter->active_vlans) && |
| 5635 | !bits) |
| 5636 | igb_vlvf_set(adapter, vid, add, |
| 5637 | adapter->vfs_allocated_count); |
| 5638 | } |
| 5639 | |
| 5640 | out: |
| 5641 | return err; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5642 | } |
| 5643 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5644 | static inline void igb_vf_reset(struct igb_adapter *adapter, u32 vf) |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5645 | { |
Greg Rose | 8fa7e0f | 2010-11-06 05:43:21 +0000 | [diff] [blame] | 5646 | /* clear flags - except flag that indicates PF has set the MAC */ |
| 5647 | adapter->vf_data[vf].flags &= IGB_VF_FLAG_PF_SET_MAC; |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5648 | adapter->vf_data[vf].last_nack = jiffies; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5649 | |
| 5650 | /* reset offloads to defaults */ |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 5651 | igb_set_vmolr(adapter, vf, true); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5652 | |
| 5653 | /* reset vlans for device */ |
| 5654 | igb_clear_vf_vfta(adapter, vf); |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 5655 | if (adapter->vf_data[vf].pf_vlan) |
| 5656 | igb_ndo_set_vf_vlan(adapter->netdev, vf, |
| 5657 | adapter->vf_data[vf].pf_vlan, |
| 5658 | adapter->vf_data[vf].pf_qos); |
| 5659 | else |
| 5660 | igb_clear_vf_vfta(adapter, vf); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5661 | |
| 5662 | /* reset multicast table array for vf */ |
| 5663 | adapter->vf_data[vf].num_vf_mc_hashes = 0; |
| 5664 | |
| 5665 | /* Flush and reset the mta with the new values */ |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 5666 | igb_set_rx_mode(adapter->netdev); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5667 | } |
| 5668 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5669 | static void igb_vf_reset_event(struct igb_adapter *adapter, u32 vf) |
| 5670 | { |
| 5671 | unsigned char *vf_mac = adapter->vf_data[vf].vf_mac_addresses; |
| 5672 | |
Mitch A Williams | 5ac6f91 | 2013-01-18 08:57:20 +0000 | [diff] [blame] | 5673 | /* clear mac address as we were hotplug removed/added */ |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 5674 | if (!(adapter->vf_data[vf].flags & IGB_VF_FLAG_PF_SET_MAC)) |
Mitch A Williams | 5ac6f91 | 2013-01-18 08:57:20 +0000 | [diff] [blame] | 5675 | eth_zero_addr(vf_mac); |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5676 | |
| 5677 | /* process remaining reset events */ |
| 5678 | igb_vf_reset(adapter, vf); |
| 5679 | } |
| 5680 | |
| 5681 | static void igb_vf_reset_msg(struct igb_adapter *adapter, u32 vf) |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5682 | { |
| 5683 | struct e1000_hw *hw = &adapter->hw; |
| 5684 | unsigned char *vf_mac = adapter->vf_data[vf].vf_mac_addresses; |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 5685 | int rar_entry = hw->mac.rar_entry_count - (vf + 1); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5686 | u32 reg, msgbuf[3]; |
| 5687 | u8 *addr = (u8 *)(&msgbuf[1]); |
| 5688 | |
| 5689 | /* process all the same items cleared in a function level reset */ |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5690 | igb_vf_reset(adapter, vf); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5691 | |
| 5692 | /* set vf mac address */ |
Alexander Duyck | 26ad917 | 2009-10-05 06:32:49 +0000 | [diff] [blame] | 5693 | igb_rar_set_qsel(adapter, vf_mac, rar_entry, vf); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5694 | |
| 5695 | /* enable transmit and receive for vf */ |
| 5696 | reg = rd32(E1000_VFTE); |
| 5697 | wr32(E1000_VFTE, reg | (1 << vf)); |
| 5698 | reg = rd32(E1000_VFRE); |
| 5699 | wr32(E1000_VFRE, reg | (1 << vf)); |
| 5700 | |
Greg Rose | 8fa7e0f | 2010-11-06 05:43:21 +0000 | [diff] [blame] | 5701 | adapter->vf_data[vf].flags |= IGB_VF_FLAG_CTS; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5702 | |
| 5703 | /* reply to reset with ack and vf mac address */ |
| 5704 | msgbuf[0] = E1000_VF_RESET | E1000_VT_MSGTYPE_ACK; |
| 5705 | memcpy(addr, vf_mac, 6); |
| 5706 | igb_write_mbx(hw, msgbuf, 3, vf); |
| 5707 | } |
| 5708 | |
| 5709 | static int igb_set_vf_mac_addr(struct igb_adapter *adapter, u32 *msg, int vf) |
| 5710 | { |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5711 | /* The VF MAC Address is stored in a packed array of bytes |
Greg Rose | de42edd | 2010-07-01 13:39:23 +0000 | [diff] [blame] | 5712 | * starting at the second 32 bit word of the msg array |
| 5713 | */ |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5714 | unsigned char *addr = (char *)&msg[1]; |
| 5715 | int err = -1; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5716 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5717 | if (is_valid_ether_addr(addr)) |
| 5718 | err = igb_set_vf_mac(adapter, vf, addr); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5719 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5720 | return err; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5721 | } |
| 5722 | |
| 5723 | static void igb_rcv_ack_from_vf(struct igb_adapter *adapter, u32 vf) |
| 5724 | { |
| 5725 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5726 | struct vf_data_storage *vf_data = &adapter->vf_data[vf]; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5727 | u32 msg = E1000_VT_MSGTYPE_NACK; |
| 5728 | |
| 5729 | /* if device isn't clear to send it shouldn't be reading either */ |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5730 | if (!(vf_data->flags & IGB_VF_FLAG_CTS) && |
| 5731 | time_after(jiffies, vf_data->last_nack + (2 * HZ))) { |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5732 | igb_write_mbx(hw, &msg, 1, vf); |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5733 | vf_data->last_nack = jiffies; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5734 | } |
| 5735 | } |
| 5736 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5737 | static void igb_rcv_msg_from_vf(struct igb_adapter *adapter, u32 vf) |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5738 | { |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5739 | struct pci_dev *pdev = adapter->pdev; |
| 5740 | u32 msgbuf[E1000_VFMAILBOX_SIZE]; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5741 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5742 | struct vf_data_storage *vf_data = &adapter->vf_data[vf]; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5743 | s32 retval; |
| 5744 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5745 | retval = igb_read_mbx(hw, msgbuf, E1000_VFMAILBOX_SIZE, vf); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5746 | |
Alexander Duyck | fef45f4 | 2009-12-11 22:57:34 -0800 | [diff] [blame] | 5747 | if (retval) { |
| 5748 | /* if receive failed revoke VF CTS stats and restart init */ |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5749 | dev_err(&pdev->dev, "Error receiving message from VF\n"); |
Alexander Duyck | fef45f4 | 2009-12-11 22:57:34 -0800 | [diff] [blame] | 5750 | vf_data->flags &= ~IGB_VF_FLAG_CTS; |
| 5751 | if (!time_after(jiffies, vf_data->last_nack + (2 * HZ))) |
| 5752 | return; |
| 5753 | goto out; |
| 5754 | } |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5755 | |
| 5756 | /* this is a message we already processed, do nothing */ |
| 5757 | if (msgbuf[0] & (E1000_VT_MSGTYPE_ACK | E1000_VT_MSGTYPE_NACK)) |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5758 | return; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5759 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5760 | /* until the vf completes a reset it should not be |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5761 | * allowed to start any configuration. |
| 5762 | */ |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5763 | if (msgbuf[0] == E1000_VF_RESET) { |
| 5764 | igb_vf_reset_msg(adapter, vf); |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5765 | return; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5766 | } |
| 5767 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5768 | if (!(vf_data->flags & IGB_VF_FLAG_CTS)) { |
Alexander Duyck | fef45f4 | 2009-12-11 22:57:34 -0800 | [diff] [blame] | 5769 | if (!time_after(jiffies, vf_data->last_nack + (2 * HZ))) |
| 5770 | return; |
| 5771 | retval = -1; |
| 5772 | goto out; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5773 | } |
| 5774 | |
| 5775 | switch ((msgbuf[0] & 0xFFFF)) { |
| 5776 | case E1000_VF_SET_MAC_ADDR: |
Greg Rose | a6b5ea3 | 2010-11-06 05:42:59 +0000 | [diff] [blame] | 5777 | retval = -EINVAL; |
| 5778 | if (!(vf_data->flags & IGB_VF_FLAG_PF_SET_MAC)) |
| 5779 | retval = igb_set_vf_mac_addr(adapter, msgbuf, vf); |
| 5780 | else |
| 5781 | dev_warn(&pdev->dev, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5782 | "VF %d attempted to override administratively set MAC address\nReload the VF driver to resume operations\n", |
| 5783 | vf); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5784 | break; |
Alexander Duyck | 7d5753f | 2009-10-27 23:47:16 +0000 | [diff] [blame] | 5785 | case E1000_VF_SET_PROMISC: |
| 5786 | retval = igb_set_vf_promisc(adapter, msgbuf, vf); |
| 5787 | break; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5788 | case E1000_VF_SET_MULTICAST: |
| 5789 | retval = igb_set_vf_multicasts(adapter, msgbuf, vf); |
| 5790 | break; |
| 5791 | case E1000_VF_SET_LPE: |
| 5792 | retval = igb_set_vf_rlpml(adapter, msgbuf[1], vf); |
| 5793 | break; |
| 5794 | case E1000_VF_SET_VLAN: |
Greg Rose | a6b5ea3 | 2010-11-06 05:42:59 +0000 | [diff] [blame] | 5795 | retval = -1; |
| 5796 | if (vf_data->pf_vlan) |
| 5797 | dev_warn(&pdev->dev, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5798 | "VF %d attempted to override administratively set VLAN tag\nReload the VF driver to resume operations\n", |
| 5799 | vf); |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 5800 | else |
| 5801 | retval = igb_set_vf_vlan(adapter, msgbuf, vf); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5802 | break; |
| 5803 | default: |
Alexander Duyck | 090b179 | 2009-10-27 23:51:55 +0000 | [diff] [blame] | 5804 | dev_err(&pdev->dev, "Unhandled Msg %08x\n", msgbuf[0]); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5805 | retval = -1; |
| 5806 | break; |
| 5807 | } |
| 5808 | |
Alexander Duyck | fef45f4 | 2009-12-11 22:57:34 -0800 | [diff] [blame] | 5809 | msgbuf[0] |= E1000_VT_MSGTYPE_CTS; |
| 5810 | out: |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5811 | /* notify the VF of the results of what it sent us */ |
| 5812 | if (retval) |
| 5813 | msgbuf[0] |= E1000_VT_MSGTYPE_NACK; |
| 5814 | else |
| 5815 | msgbuf[0] |= E1000_VT_MSGTYPE_ACK; |
| 5816 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5817 | igb_write_mbx(hw, msgbuf, 1, vf); |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5818 | } |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5819 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame] | 5820 | static void igb_msg_task(struct igb_adapter *adapter) |
| 5821 | { |
| 5822 | struct e1000_hw *hw = &adapter->hw; |
| 5823 | u32 vf; |
| 5824 | |
| 5825 | for (vf = 0; vf < adapter->vfs_allocated_count; vf++) { |
| 5826 | /* process any reset requests */ |
| 5827 | if (!igb_check_for_rst(hw, vf)) |
| 5828 | igb_vf_reset_event(adapter, vf); |
| 5829 | |
| 5830 | /* process any messages pending */ |
| 5831 | if (!igb_check_for_msg(hw, vf)) |
| 5832 | igb_rcv_msg_from_vf(adapter, vf); |
| 5833 | |
| 5834 | /* process any acks */ |
| 5835 | if (!igb_check_for_ack(hw, vf)) |
| 5836 | igb_rcv_ack_from_vf(adapter, vf); |
| 5837 | } |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5838 | } |
| 5839 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5840 | /** |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 5841 | * igb_set_uta - Set unicast filter table address |
| 5842 | * @adapter: board private structure |
| 5843 | * |
| 5844 | * The unicast table address is a register array of 32-bit registers. |
| 5845 | * The table is meant to be used in a way similar to how the MTA is used |
| 5846 | * however due to certain limitations in the hardware it is necessary to |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 5847 | * set all the hash bits to 1 and use the VMOLR ROPE bit as a promiscuous |
| 5848 | * enable bit to allow vlan tag stripping when promiscuous mode is enabled |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 5849 | **/ |
| 5850 | static void igb_set_uta(struct igb_adapter *adapter) |
| 5851 | { |
| 5852 | struct e1000_hw *hw = &adapter->hw; |
| 5853 | int i; |
| 5854 | |
| 5855 | /* The UTA table only exists on 82576 hardware and newer */ |
| 5856 | if (hw->mac.type < e1000_82576) |
| 5857 | return; |
| 5858 | |
| 5859 | /* we only need to do this if VMDq is enabled */ |
| 5860 | if (!adapter->vfs_allocated_count) |
| 5861 | return; |
| 5862 | |
| 5863 | for (i = 0; i < hw->mac.uta_reg_count; i++) |
| 5864 | array_wr32(E1000_UTA, i, ~0); |
| 5865 | } |
| 5866 | |
| 5867 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5868 | * igb_intr_msi - Interrupt Handler |
| 5869 | * @irq: interrupt number |
| 5870 | * @data: pointer to a network interface device structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5871 | **/ |
| 5872 | static irqreturn_t igb_intr_msi(int irq, void *data) |
| 5873 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5874 | struct igb_adapter *adapter = data; |
| 5875 | struct igb_q_vector *q_vector = adapter->q_vector[0]; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5876 | struct e1000_hw *hw = &adapter->hw; |
| 5877 | /* read ICR disables interrupts using IAM */ |
| 5878 | u32 icr = rd32(E1000_ICR); |
| 5879 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5880 | igb_write_itr(q_vector); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5881 | |
Alexander Duyck | 7f081d4 | 2010-01-07 17:41:00 +0000 | [diff] [blame] | 5882 | if (icr & E1000_ICR_DRSTA) |
| 5883 | schedule_work(&adapter->reset_task); |
| 5884 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5885 | if (icr & E1000_ICR_DOUTSYNC) { |
Alexander Duyck | dda0e08 | 2009-02-06 23:19:08 +0000 | [diff] [blame] | 5886 | /* HW is reporting DMA is out of sync */ |
| 5887 | adapter->stats.doosync++; |
| 5888 | } |
| 5889 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5890 | if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) { |
| 5891 | hw->mac.get_link_status = 1; |
| 5892 | if (!test_bit(__IGB_DOWN, &adapter->state)) |
| 5893 | mod_timer(&adapter->watchdog_timer, jiffies + 1); |
| 5894 | } |
| 5895 | |
Matthew Vick | 1f6e817 | 2012-08-18 07:26:33 +0000 | [diff] [blame] | 5896 | if (icr & E1000_ICR_TS) { |
| 5897 | u32 tsicr = rd32(E1000_TSICR); |
| 5898 | |
| 5899 | if (tsicr & E1000_TSICR_TXTS) { |
| 5900 | /* acknowledge the interrupt */ |
| 5901 | wr32(E1000_TSICR, E1000_TSICR_TXTS); |
| 5902 | /* retrieve hardware timestamp */ |
| 5903 | schedule_work(&adapter->ptp_tx_work); |
| 5904 | } |
| 5905 | } |
Matthew Vick | 1f6e817 | 2012-08-18 07:26:33 +0000 | [diff] [blame] | 5906 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5907 | napi_schedule(&q_vector->napi); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5908 | |
| 5909 | return IRQ_HANDLED; |
| 5910 | } |
| 5911 | |
| 5912 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5913 | * igb_intr - Legacy Interrupt Handler |
| 5914 | * @irq: interrupt number |
| 5915 | * @data: pointer to a network interface device structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5916 | **/ |
| 5917 | static irqreturn_t igb_intr(int irq, void *data) |
| 5918 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5919 | struct igb_adapter *adapter = data; |
| 5920 | struct igb_q_vector *q_vector = adapter->q_vector[0]; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5921 | struct e1000_hw *hw = &adapter->hw; |
| 5922 | /* Interrupt Auto-Mask...upon reading ICR, interrupts are masked. No |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5923 | * need for the IMC write |
| 5924 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5925 | u32 icr = rd32(E1000_ICR); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5926 | |
| 5927 | /* IMS will not auto-mask if INT_ASSERTED is not set, and if it is |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5928 | * not set, then the adapter didn't send an interrupt |
| 5929 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5930 | if (!(icr & E1000_ICR_INT_ASSERTED)) |
| 5931 | return IRQ_NONE; |
| 5932 | |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 5933 | igb_write_itr(q_vector); |
| 5934 | |
Alexander Duyck | 7f081d4 | 2010-01-07 17:41:00 +0000 | [diff] [blame] | 5935 | if (icr & E1000_ICR_DRSTA) |
| 5936 | schedule_work(&adapter->reset_task); |
| 5937 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5938 | if (icr & E1000_ICR_DOUTSYNC) { |
Alexander Duyck | dda0e08 | 2009-02-06 23:19:08 +0000 | [diff] [blame] | 5939 | /* HW is reporting DMA is out of sync */ |
| 5940 | adapter->stats.doosync++; |
| 5941 | } |
| 5942 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5943 | if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) { |
| 5944 | hw->mac.get_link_status = 1; |
| 5945 | /* guard against interrupt when we're going down */ |
| 5946 | if (!test_bit(__IGB_DOWN, &adapter->state)) |
| 5947 | mod_timer(&adapter->watchdog_timer, jiffies + 1); |
| 5948 | } |
| 5949 | |
Matthew Vick | 1f6e817 | 2012-08-18 07:26:33 +0000 | [diff] [blame] | 5950 | if (icr & E1000_ICR_TS) { |
| 5951 | u32 tsicr = rd32(E1000_TSICR); |
| 5952 | |
| 5953 | if (tsicr & E1000_TSICR_TXTS) { |
| 5954 | /* acknowledge the interrupt */ |
| 5955 | wr32(E1000_TSICR, E1000_TSICR_TXTS); |
| 5956 | /* retrieve hardware timestamp */ |
| 5957 | schedule_work(&adapter->ptp_tx_work); |
| 5958 | } |
| 5959 | } |
Matthew Vick | 1f6e817 | 2012-08-18 07:26:33 +0000 | [diff] [blame] | 5960 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5961 | napi_schedule(&q_vector->napi); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5962 | |
| 5963 | return IRQ_HANDLED; |
| 5964 | } |
| 5965 | |
Stephen Hemminger | c50b52a | 2012-01-18 22:13:26 +0000 | [diff] [blame] | 5966 | static void igb_ring_irq_enable(struct igb_q_vector *q_vector) |
Alexander Duyck | 4654425 | 2009-02-19 20:39:04 -0800 | [diff] [blame] | 5967 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5968 | struct igb_adapter *adapter = q_vector->adapter; |
Alexander Duyck | 4654425 | 2009-02-19 20:39:04 -0800 | [diff] [blame] | 5969 | struct e1000_hw *hw = &adapter->hw; |
| 5970 | |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 5971 | if ((q_vector->rx.ring && (adapter->rx_itr_setting & 3)) || |
| 5972 | (!q_vector->rx.ring && (adapter->tx_itr_setting & 3))) { |
| 5973 | if ((adapter->num_q_vectors == 1) && !adapter->vf_data) |
| 5974 | igb_set_itr(q_vector); |
Alexander Duyck | 4654425 | 2009-02-19 20:39:04 -0800 | [diff] [blame] | 5975 | else |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5976 | igb_update_ring_itr(q_vector); |
Alexander Duyck | 4654425 | 2009-02-19 20:39:04 -0800 | [diff] [blame] | 5977 | } |
| 5978 | |
| 5979 | if (!test_bit(__IGB_DOWN, &adapter->state)) { |
| 5980 | if (adapter->msix_entries) |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5981 | wr32(E1000_EIMS, q_vector->eims_value); |
Alexander Duyck | 4654425 | 2009-02-19 20:39:04 -0800 | [diff] [blame] | 5982 | else |
| 5983 | igb_irq_enable(adapter); |
| 5984 | } |
| 5985 | } |
| 5986 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5987 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5988 | * igb_poll - NAPI Rx polling callback |
| 5989 | * @napi: napi polling structure |
| 5990 | * @budget: count of how many packets we should handle |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5991 | **/ |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 5992 | static int igb_poll(struct napi_struct *napi, int budget) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5993 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5994 | struct igb_q_vector *q_vector = container_of(napi, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 5995 | struct igb_q_vector, |
| 5996 | napi); |
Alexander Duyck | 16eb881 | 2011-08-26 07:43:54 +0000 | [diff] [blame] | 5997 | bool clean_complete = true; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5998 | |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 5999 | #ifdef CONFIG_IGB_DCA |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 6000 | if (q_vector->adapter->flags & IGB_FLAG_DCA_ENABLED) |
| 6001 | igb_update_dca(q_vector); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 6002 | #endif |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 6003 | if (q_vector->tx.ring) |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 6004 | clean_complete = igb_clean_tx_irq(q_vector); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6005 | |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 6006 | if (q_vector->rx.ring) |
Alexander Duyck | cd392f5 | 2011-08-26 07:43:59 +0000 | [diff] [blame] | 6007 | clean_complete &= igb_clean_rx_irq(q_vector, budget); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 6008 | |
Alexander Duyck | 16eb881 | 2011-08-26 07:43:54 +0000 | [diff] [blame] | 6009 | /* If all work not completed, return budget and keep polling */ |
| 6010 | if (!clean_complete) |
| 6011 | return budget; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6012 | |
Alexander Duyck | 4654425 | 2009-02-19 20:39:04 -0800 | [diff] [blame] | 6013 | /* If not enough Rx work done, exit the polling mode */ |
Alexander Duyck | 16eb881 | 2011-08-26 07:43:54 +0000 | [diff] [blame] | 6014 | napi_complete(napi); |
| 6015 | igb_ring_irq_enable(q_vector); |
Alexander Duyck | 4654425 | 2009-02-19 20:39:04 -0800 | [diff] [blame] | 6016 | |
Alexander Duyck | 16eb881 | 2011-08-26 07:43:54 +0000 | [diff] [blame] | 6017 | return 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6018 | } |
Al Viro | 6d8126f | 2008-03-16 22:23:24 +0000 | [diff] [blame] | 6019 | |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 6020 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6021 | * igb_clean_tx_irq - Reclaim resources after transmit completes |
| 6022 | * @q_vector: pointer to q_vector containing needed info |
Ben Hutchings | 49ce9c2 | 2012-07-10 10:56:00 +0000 | [diff] [blame] | 6023 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6024 | * returns true if ring is completely cleaned |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6025 | **/ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 6026 | static bool igb_clean_tx_irq(struct igb_q_vector *q_vector) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6027 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 6028 | struct igb_adapter *adapter = q_vector->adapter; |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 6029 | struct igb_ring *tx_ring = q_vector->tx.ring; |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 6030 | struct igb_tx_buffer *tx_buffer; |
Alexander Duyck | f412878 | 2012-09-13 06:28:01 +0000 | [diff] [blame] | 6031 | union e1000_adv_tx_desc *tx_desc; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6032 | unsigned int total_bytes = 0, total_packets = 0; |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 6033 | unsigned int budget = q_vector->tx.work_limit; |
Alexander Duyck | 8542db0 | 2011-08-26 07:44:43 +0000 | [diff] [blame] | 6034 | unsigned int i = tx_ring->next_to_clean; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6035 | |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 6036 | if (test_bit(__IGB_DOWN, &adapter->state)) |
| 6037 | return true; |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 6038 | |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 6039 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 6040 | tx_desc = IGB_TX_DESC(tx_ring, i); |
Alexander Duyck | 8542db0 | 2011-08-26 07:44:43 +0000 | [diff] [blame] | 6041 | i -= tx_ring->count; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6042 | |
Alexander Duyck | f412878 | 2012-09-13 06:28:01 +0000 | [diff] [blame] | 6043 | do { |
| 6044 | union e1000_adv_tx_desc *eop_desc = tx_buffer->next_to_watch; |
Alexander Duyck | 8542db0 | 2011-08-26 07:44:43 +0000 | [diff] [blame] | 6045 | |
| 6046 | /* if next_to_watch is not set then there is no work pending */ |
| 6047 | if (!eop_desc) |
| 6048 | break; |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 6049 | |
Alexander Duyck | f412878 | 2012-09-13 06:28:01 +0000 | [diff] [blame] | 6050 | /* prevent any other reads prior to eop_desc */ |
Alexander Duyck | 70d289b | 2013-01-08 07:01:03 +0000 | [diff] [blame] | 6051 | read_barrier_depends(); |
Alexander Duyck | f412878 | 2012-09-13 06:28:01 +0000 | [diff] [blame] | 6052 | |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 6053 | /* if DD is not set pending work has not been completed */ |
| 6054 | if (!(eop_desc->wb.status & cpu_to_le32(E1000_TXD_STAT_DD))) |
| 6055 | break; |
| 6056 | |
Alexander Duyck | 8542db0 | 2011-08-26 07:44:43 +0000 | [diff] [blame] | 6057 | /* clear next_to_watch to prevent false hangs */ |
| 6058 | tx_buffer->next_to_watch = NULL; |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 6059 | |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 6060 | /* update the statistics for this packet */ |
| 6061 | total_bytes += tx_buffer->bytecount; |
| 6062 | total_packets += tx_buffer->gso_segs; |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 6063 | |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 6064 | /* free the skb */ |
| 6065 | dev_kfree_skb_any(tx_buffer->skb); |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 6066 | |
| 6067 | /* unmap skb header data */ |
| 6068 | dma_unmap_single(tx_ring->dev, |
Alexander Duyck | c9f14bf3 | 2012-09-18 01:56:27 +0000 | [diff] [blame] | 6069 | dma_unmap_addr(tx_buffer, dma), |
| 6070 | dma_unmap_len(tx_buffer, len), |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 6071 | DMA_TO_DEVICE); |
| 6072 | |
Alexander Duyck | c9f14bf3 | 2012-09-18 01:56:27 +0000 | [diff] [blame] | 6073 | /* clear tx_buffer data */ |
| 6074 | tx_buffer->skb = NULL; |
| 6075 | dma_unmap_len_set(tx_buffer, len, 0); |
| 6076 | |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 6077 | /* clear last DMA location and unmap remaining buffers */ |
| 6078 | while (tx_desc != eop_desc) { |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 6079 | tx_buffer++; |
| 6080 | tx_desc++; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6081 | i++; |
Alexander Duyck | 8542db0 | 2011-08-26 07:44:43 +0000 | [diff] [blame] | 6082 | if (unlikely(!i)) { |
| 6083 | i -= tx_ring->count; |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 6084 | tx_buffer = tx_ring->tx_buffer_info; |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 6085 | tx_desc = IGB_TX_DESC(tx_ring, 0); |
| 6086 | } |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 6087 | |
| 6088 | /* unmap any remaining paged data */ |
Alexander Duyck | c9f14bf3 | 2012-09-18 01:56:27 +0000 | [diff] [blame] | 6089 | if (dma_unmap_len(tx_buffer, len)) { |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 6090 | dma_unmap_page(tx_ring->dev, |
Alexander Duyck | c9f14bf3 | 2012-09-18 01:56:27 +0000 | [diff] [blame] | 6091 | dma_unmap_addr(tx_buffer, dma), |
| 6092 | dma_unmap_len(tx_buffer, len), |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 6093 | DMA_TO_DEVICE); |
Alexander Duyck | c9f14bf3 | 2012-09-18 01:56:27 +0000 | [diff] [blame] | 6094 | dma_unmap_len_set(tx_buffer, len, 0); |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 6095 | } |
| 6096 | } |
| 6097 | |
Alexander Duyck | ebe42d1 | 2011-08-26 07:45:09 +0000 | [diff] [blame] | 6098 | /* move us one more past the eop_desc for start of next pkt */ |
| 6099 | tx_buffer++; |
| 6100 | tx_desc++; |
| 6101 | i++; |
| 6102 | if (unlikely(!i)) { |
| 6103 | i -= tx_ring->count; |
| 6104 | tx_buffer = tx_ring->tx_buffer_info; |
| 6105 | tx_desc = IGB_TX_DESC(tx_ring, 0); |
| 6106 | } |
Alexander Duyck | f412878 | 2012-09-13 06:28:01 +0000 | [diff] [blame] | 6107 | |
| 6108 | /* issue prefetch for next Tx descriptor */ |
| 6109 | prefetch(tx_desc); |
| 6110 | |
| 6111 | /* update budget accounting */ |
| 6112 | budget--; |
| 6113 | } while (likely(budget)); |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 6114 | |
Eric Dumazet | bdbc063 | 2012-01-04 20:23:36 +0000 | [diff] [blame] | 6115 | netdev_tx_completed_queue(txring_txq(tx_ring), |
| 6116 | total_packets, total_bytes); |
Alexander Duyck | 8542db0 | 2011-08-26 07:44:43 +0000 | [diff] [blame] | 6117 | i += tx_ring->count; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6118 | tx_ring->next_to_clean = i; |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 6119 | u64_stats_update_begin(&tx_ring->tx_syncp); |
| 6120 | tx_ring->tx_stats.bytes += total_bytes; |
| 6121 | tx_ring->tx_stats.packets += total_packets; |
| 6122 | u64_stats_update_end(&tx_ring->tx_syncp); |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 6123 | q_vector->tx.total_bytes += total_bytes; |
| 6124 | q_vector->tx.total_packets += total_packets; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6125 | |
Alexander Duyck | 6d095fa | 2011-08-26 07:46:19 +0000 | [diff] [blame] | 6126 | if (test_bit(IGB_RING_FLAG_TX_DETECT_HANG, &tx_ring->flags)) { |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 6127 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 6128 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6129 | /* Detect a transmit hang in hardware, this serializes the |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6130 | * check with the clearing of time_stamp and movement of i |
| 6131 | */ |
Alexander Duyck | 6d095fa | 2011-08-26 07:46:19 +0000 | [diff] [blame] | 6132 | clear_bit(IGB_RING_FLAG_TX_DETECT_HANG, &tx_ring->flags); |
Alexander Duyck | f412878 | 2012-09-13 06:28:01 +0000 | [diff] [blame] | 6133 | if (tx_buffer->next_to_watch && |
Alexander Duyck | 8542db0 | 2011-08-26 07:44:43 +0000 | [diff] [blame] | 6134 | time_after(jiffies, tx_buffer->time_stamp + |
Joe Perches | 8e95a20 | 2009-12-03 07:58:21 +0000 | [diff] [blame] | 6135 | (adapter->tx_timeout_factor * HZ)) && |
| 6136 | !(rd32(E1000_STATUS) & E1000_STATUS_TXOFF)) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6137 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6138 | /* detected Tx unit hang */ |
Alexander Duyck | 59d7198 | 2010-04-27 13:09:25 +0000 | [diff] [blame] | 6139 | dev_err(tx_ring->dev, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6140 | "Detected Tx Unit Hang\n" |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 6141 | " Tx Queue <%d>\n" |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6142 | " TDH <%x>\n" |
| 6143 | " TDT <%x>\n" |
| 6144 | " next_to_use <%x>\n" |
| 6145 | " next_to_clean <%x>\n" |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6146 | "buffer_info[next_to_clean]\n" |
| 6147 | " time_stamp <%lx>\n" |
Alexander Duyck | 8542db0 | 2011-08-26 07:44:43 +0000 | [diff] [blame] | 6148 | " next_to_watch <%p>\n" |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6149 | " jiffies <%lx>\n" |
| 6150 | " desc.status <%x>\n", |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 6151 | tx_ring->queue_index, |
Alexander Duyck | 238ac81 | 2011-08-26 07:43:48 +0000 | [diff] [blame] | 6152 | rd32(E1000_TDH(tx_ring->reg_idx)), |
Alexander Duyck | fce99e3 | 2009-10-27 15:51:27 +0000 | [diff] [blame] | 6153 | readl(tx_ring->tail), |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6154 | tx_ring->next_to_use, |
| 6155 | tx_ring->next_to_clean, |
Alexander Duyck | 8542db0 | 2011-08-26 07:44:43 +0000 | [diff] [blame] | 6156 | tx_buffer->time_stamp, |
Alexander Duyck | f412878 | 2012-09-13 06:28:01 +0000 | [diff] [blame] | 6157 | tx_buffer->next_to_watch, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6158 | jiffies, |
Alexander Duyck | f412878 | 2012-09-13 06:28:01 +0000 | [diff] [blame] | 6159 | tx_buffer->next_to_watch->wb.status); |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 6160 | netif_stop_subqueue(tx_ring->netdev, |
| 6161 | tx_ring->queue_index); |
| 6162 | |
| 6163 | /* we are about to reset, no point in enabling stuff */ |
| 6164 | return true; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6165 | } |
| 6166 | } |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 6167 | |
Alexander Duyck | 21ba6fe | 2013-02-09 04:27:48 +0000 | [diff] [blame] | 6168 | #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2) |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 6169 | if (unlikely(total_packets && |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6170 | netif_carrier_ok(tx_ring->netdev) && |
| 6171 | igb_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD)) { |
Alexander Duyck | 13fde97 | 2011-10-05 13:35:24 +0000 | [diff] [blame] | 6172 | /* Make sure that anybody stopping the queue after this |
| 6173 | * sees the new next_to_clean. |
| 6174 | */ |
| 6175 | smp_mb(); |
| 6176 | if (__netif_subqueue_stopped(tx_ring->netdev, |
| 6177 | tx_ring->queue_index) && |
| 6178 | !(test_bit(__IGB_DOWN, &adapter->state))) { |
| 6179 | netif_wake_subqueue(tx_ring->netdev, |
| 6180 | tx_ring->queue_index); |
| 6181 | |
| 6182 | u64_stats_update_begin(&tx_ring->tx_syncp); |
| 6183 | tx_ring->tx_stats.restart_queue++; |
| 6184 | u64_stats_update_end(&tx_ring->tx_syncp); |
| 6185 | } |
| 6186 | } |
| 6187 | |
| 6188 | return !!budget; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6189 | } |
| 6190 | |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6191 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6192 | * igb_reuse_rx_page - page flip buffer and store it back on the ring |
| 6193 | * @rx_ring: rx descriptor ring to store buffers on |
| 6194 | * @old_buff: donor buffer to have page reused |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6195 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6196 | * Synchronizes page for reuse by the adapter |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6197 | **/ |
| 6198 | static void igb_reuse_rx_page(struct igb_ring *rx_ring, |
| 6199 | struct igb_rx_buffer *old_buff) |
| 6200 | { |
| 6201 | struct igb_rx_buffer *new_buff; |
| 6202 | u16 nta = rx_ring->next_to_alloc; |
| 6203 | |
| 6204 | new_buff = &rx_ring->rx_buffer_info[nta]; |
| 6205 | |
| 6206 | /* update, and store next to alloc */ |
| 6207 | nta++; |
| 6208 | rx_ring->next_to_alloc = (nta < rx_ring->count) ? nta : 0; |
| 6209 | |
| 6210 | /* transfer page from old buffer to new buffer */ |
| 6211 | memcpy(new_buff, old_buff, sizeof(struct igb_rx_buffer)); |
| 6212 | |
| 6213 | /* sync the buffer for use by the device */ |
| 6214 | dma_sync_single_range_for_device(rx_ring->dev, old_buff->dma, |
| 6215 | old_buff->page_offset, |
Alexander Duyck | de78d1f | 2012-09-25 00:31:12 +0000 | [diff] [blame] | 6216 | IGB_RX_BUFSZ, |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6217 | DMA_FROM_DEVICE); |
| 6218 | } |
| 6219 | |
Alexander Duyck | 74e238e | 2013-02-02 05:07:11 +0000 | [diff] [blame] | 6220 | static bool igb_can_reuse_rx_page(struct igb_rx_buffer *rx_buffer, |
| 6221 | struct page *page, |
| 6222 | unsigned int truesize) |
| 6223 | { |
| 6224 | /* avoid re-using remote pages */ |
| 6225 | if (unlikely(page_to_nid(page) != numa_node_id())) |
| 6226 | return false; |
| 6227 | |
| 6228 | #if (PAGE_SIZE < 8192) |
| 6229 | /* if we are only owner of page we can reuse it */ |
| 6230 | if (unlikely(page_count(page) != 1)) |
| 6231 | return false; |
| 6232 | |
| 6233 | /* flip page offset to other buffer */ |
| 6234 | rx_buffer->page_offset ^= IGB_RX_BUFSZ; |
| 6235 | |
| 6236 | /* since we are the only owner of the page and we need to |
| 6237 | * increment it, just set the value to 2 in order to avoid |
| 6238 | * an unnecessary locked operation |
| 6239 | */ |
| 6240 | atomic_set(&page->_count, 2); |
| 6241 | #else |
| 6242 | /* move offset up to the next cache line */ |
| 6243 | rx_buffer->page_offset += truesize; |
| 6244 | |
| 6245 | if (rx_buffer->page_offset > (PAGE_SIZE - IGB_RX_BUFSZ)) |
| 6246 | return false; |
| 6247 | |
| 6248 | /* bump ref count on page before it is given to the stack */ |
| 6249 | get_page(page); |
| 6250 | #endif |
| 6251 | |
| 6252 | return true; |
| 6253 | } |
| 6254 | |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6255 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6256 | * igb_add_rx_frag - Add contents of Rx buffer to sk_buff |
| 6257 | * @rx_ring: rx descriptor ring to transact packets on |
| 6258 | * @rx_buffer: buffer containing page to add |
| 6259 | * @rx_desc: descriptor containing length of buffer written by hardware |
| 6260 | * @skb: sk_buff to place the data into |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6261 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6262 | * This function will add the data contained in rx_buffer->page to the skb. |
| 6263 | * This is done either through a direct copy if the data in the buffer is |
| 6264 | * less than the skb header size, otherwise it will just attach the page as |
| 6265 | * a frag to the skb. |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6266 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6267 | * The function will then update the page offset if necessary and return |
| 6268 | * true if the buffer can be reused by the adapter. |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6269 | **/ |
| 6270 | static bool igb_add_rx_frag(struct igb_ring *rx_ring, |
| 6271 | struct igb_rx_buffer *rx_buffer, |
| 6272 | union e1000_adv_rx_desc *rx_desc, |
| 6273 | struct sk_buff *skb) |
| 6274 | { |
| 6275 | struct page *page = rx_buffer->page; |
| 6276 | unsigned int size = le16_to_cpu(rx_desc->wb.upper.length); |
Alexander Duyck | 74e238e | 2013-02-02 05:07:11 +0000 | [diff] [blame] | 6277 | #if (PAGE_SIZE < 8192) |
| 6278 | unsigned int truesize = IGB_RX_BUFSZ; |
| 6279 | #else |
| 6280 | unsigned int truesize = ALIGN(size, L1_CACHE_BYTES); |
| 6281 | #endif |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6282 | |
| 6283 | if ((size <= IGB_RX_HDR_LEN) && !skb_is_nonlinear(skb)) { |
| 6284 | unsigned char *va = page_address(page) + rx_buffer->page_offset; |
| 6285 | |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6286 | if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP)) { |
| 6287 | igb_ptp_rx_pktstamp(rx_ring->q_vector, va, skb); |
| 6288 | va += IGB_TS_HDR_LEN; |
| 6289 | size -= IGB_TS_HDR_LEN; |
| 6290 | } |
| 6291 | |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6292 | memcpy(__skb_put(skb, size), va, ALIGN(size, sizeof(long))); |
| 6293 | |
| 6294 | /* we can reuse buffer as-is, just make sure it is local */ |
| 6295 | if (likely(page_to_nid(page) == numa_node_id())) |
| 6296 | return true; |
| 6297 | |
| 6298 | /* this page cannot be reused so discard it */ |
| 6299 | put_page(page); |
| 6300 | return false; |
| 6301 | } |
| 6302 | |
| 6303 | skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, |
Alexander Duyck | 74e238e | 2013-02-02 05:07:11 +0000 | [diff] [blame] | 6304 | rx_buffer->page_offset, size, truesize); |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6305 | |
Alexander Duyck | 74e238e | 2013-02-02 05:07:11 +0000 | [diff] [blame] | 6306 | return igb_can_reuse_rx_page(rx_buffer, page, truesize); |
| 6307 | } |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6308 | |
Alexander Duyck | 2e334ee | 2012-09-25 00:31:07 +0000 | [diff] [blame] | 6309 | static struct sk_buff *igb_fetch_rx_buffer(struct igb_ring *rx_ring, |
| 6310 | union e1000_adv_rx_desc *rx_desc, |
| 6311 | struct sk_buff *skb) |
| 6312 | { |
| 6313 | struct igb_rx_buffer *rx_buffer; |
| 6314 | struct page *page; |
| 6315 | |
| 6316 | rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean]; |
| 6317 | |
Alexander Duyck | 2e334ee | 2012-09-25 00:31:07 +0000 | [diff] [blame] | 6318 | page = rx_buffer->page; |
| 6319 | prefetchw(page); |
| 6320 | |
| 6321 | if (likely(!skb)) { |
| 6322 | void *page_addr = page_address(page) + |
| 6323 | rx_buffer->page_offset; |
| 6324 | |
| 6325 | /* prefetch first cache line of first page */ |
| 6326 | prefetch(page_addr); |
| 6327 | #if L1_CACHE_BYTES < 128 |
| 6328 | prefetch(page_addr + L1_CACHE_BYTES); |
| 6329 | #endif |
| 6330 | |
| 6331 | /* allocate a skb to store the frags */ |
| 6332 | skb = netdev_alloc_skb_ip_align(rx_ring->netdev, |
| 6333 | IGB_RX_HDR_LEN); |
| 6334 | if (unlikely(!skb)) { |
| 6335 | rx_ring->rx_stats.alloc_failed++; |
| 6336 | return NULL; |
| 6337 | } |
| 6338 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6339 | /* we will be copying header into skb->data in |
Alexander Duyck | 2e334ee | 2012-09-25 00:31:07 +0000 | [diff] [blame] | 6340 | * pskb_may_pull so it is in our interest to prefetch |
| 6341 | * it now to avoid a possible cache miss |
| 6342 | */ |
| 6343 | prefetchw(skb->data); |
| 6344 | } |
| 6345 | |
| 6346 | /* we are reusing so sync this buffer for CPU use */ |
| 6347 | dma_sync_single_range_for_cpu(rx_ring->dev, |
| 6348 | rx_buffer->dma, |
| 6349 | rx_buffer->page_offset, |
Alexander Duyck | de78d1f | 2012-09-25 00:31:12 +0000 | [diff] [blame] | 6350 | IGB_RX_BUFSZ, |
Alexander Duyck | 2e334ee | 2012-09-25 00:31:07 +0000 | [diff] [blame] | 6351 | DMA_FROM_DEVICE); |
| 6352 | |
| 6353 | /* pull page into skb */ |
| 6354 | if (igb_add_rx_frag(rx_ring, rx_buffer, rx_desc, skb)) { |
| 6355 | /* hand second half of page back to the ring */ |
| 6356 | igb_reuse_rx_page(rx_ring, rx_buffer); |
| 6357 | } else { |
| 6358 | /* we are not reusing the buffer so unmap it */ |
| 6359 | dma_unmap_page(rx_ring->dev, rx_buffer->dma, |
| 6360 | PAGE_SIZE, DMA_FROM_DEVICE); |
| 6361 | } |
| 6362 | |
| 6363 | /* clear contents of rx_buffer */ |
| 6364 | rx_buffer->page = NULL; |
| 6365 | |
| 6366 | return skb; |
| 6367 | } |
| 6368 | |
Alexander Duyck | cd392f5 | 2011-08-26 07:43:59 +0000 | [diff] [blame] | 6369 | static inline void igb_rx_checksum(struct igb_ring *ring, |
Alexander Duyck | 3ceb90f | 2011-08-26 07:46:03 +0000 | [diff] [blame] | 6370 | union e1000_adv_rx_desc *rx_desc, |
| 6371 | struct sk_buff *skb) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6372 | { |
Eric Dumazet | bc8acf2 | 2010-09-02 13:07:41 -0700 | [diff] [blame] | 6373 | skb_checksum_none_assert(skb); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6374 | |
Alexander Duyck | 294e7d7 | 2011-08-26 07:45:57 +0000 | [diff] [blame] | 6375 | /* Ignore Checksum bit is set */ |
Alexander Duyck | 3ceb90f | 2011-08-26 07:46:03 +0000 | [diff] [blame] | 6376 | if (igb_test_staterr(rx_desc, E1000_RXD_STAT_IXSM)) |
Alexander Duyck | 294e7d7 | 2011-08-26 07:45:57 +0000 | [diff] [blame] | 6377 | return; |
| 6378 | |
| 6379 | /* Rx checksum disabled via ethtool */ |
| 6380 | if (!(ring->netdev->features & NETIF_F_RXCSUM)) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6381 | return; |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 6382 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6383 | /* TCP/UDP checksum error bit is set */ |
Alexander Duyck | 3ceb90f | 2011-08-26 07:46:03 +0000 | [diff] [blame] | 6384 | if (igb_test_staterr(rx_desc, |
| 6385 | E1000_RXDEXT_STATERR_TCPE | |
| 6386 | E1000_RXDEXT_STATERR_IPE)) { |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6387 | /* work around errata with sctp packets where the TCPE aka |
Jesse Brandeburg | b947356 | 2009-04-27 22:36:13 +0000 | [diff] [blame] | 6388 | * L4E bit is set incorrectly on 64 byte (60 byte w/o crc) |
| 6389 | * packets, (aka let the stack check the crc32c) |
| 6390 | */ |
Alexander Duyck | 866cff0 | 2011-08-26 07:45:36 +0000 | [diff] [blame] | 6391 | if (!((skb->len == 60) && |
| 6392 | test_bit(IGB_RING_FLAG_RX_SCTP_CSUM, &ring->flags))) { |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 6393 | u64_stats_update_begin(&ring->rx_syncp); |
Alexander Duyck | 04a5fcaa | 2009-10-27 15:52:27 +0000 | [diff] [blame] | 6394 | ring->rx_stats.csum_err++; |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 6395 | u64_stats_update_end(&ring->rx_syncp); |
| 6396 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6397 | /* let the stack verify checksum errors */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6398 | return; |
| 6399 | } |
| 6400 | /* It must be a TCP or UDP packet with a valid checksum */ |
Alexander Duyck | 3ceb90f | 2011-08-26 07:46:03 +0000 | [diff] [blame] | 6401 | if (igb_test_staterr(rx_desc, E1000_RXD_STAT_TCPCS | |
| 6402 | E1000_RXD_STAT_UDPCS)) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6403 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 6404 | |
Alexander Duyck | 3ceb90f | 2011-08-26 07:46:03 +0000 | [diff] [blame] | 6405 | dev_dbg(ring->dev, "cksum success: bits %08X\n", |
| 6406 | le32_to_cpu(rx_desc->wb.upper.status_error)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6407 | } |
| 6408 | |
Alexander Duyck | 077887c | 2011-08-26 07:46:29 +0000 | [diff] [blame] | 6409 | static inline void igb_rx_hash(struct igb_ring *ring, |
| 6410 | union e1000_adv_rx_desc *rx_desc, |
| 6411 | struct sk_buff *skb) |
| 6412 | { |
| 6413 | if (ring->netdev->features & NETIF_F_RXHASH) |
| 6414 | skb->rxhash = le32_to_cpu(rx_desc->wb.lower.hi_dword.rss); |
| 6415 | } |
| 6416 | |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6417 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6418 | * igb_is_non_eop - process handling of non-EOP buffers |
| 6419 | * @rx_ring: Rx ring being processed |
| 6420 | * @rx_desc: Rx descriptor for current buffer |
| 6421 | * @skb: current socket buffer containing buffer in progress |
Alexander Duyck | 2e334ee | 2012-09-25 00:31:07 +0000 | [diff] [blame] | 6422 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6423 | * This function updates next to clean. If the buffer is an EOP buffer |
| 6424 | * this function exits returning false, otherwise it will place the |
| 6425 | * sk_buff in the next buffer to be chained and return true indicating |
| 6426 | * that this is in fact a non-EOP buffer. |
Alexander Duyck | 2e334ee | 2012-09-25 00:31:07 +0000 | [diff] [blame] | 6427 | **/ |
| 6428 | static bool igb_is_non_eop(struct igb_ring *rx_ring, |
| 6429 | union e1000_adv_rx_desc *rx_desc) |
| 6430 | { |
| 6431 | u32 ntc = rx_ring->next_to_clean + 1; |
| 6432 | |
| 6433 | /* fetch, update, and store next to clean */ |
| 6434 | ntc = (ntc < rx_ring->count) ? ntc : 0; |
| 6435 | rx_ring->next_to_clean = ntc; |
| 6436 | |
| 6437 | prefetch(IGB_RX_DESC(rx_ring, ntc)); |
| 6438 | |
| 6439 | if (likely(igb_test_staterr(rx_desc, E1000_RXD_STAT_EOP))) |
| 6440 | return false; |
| 6441 | |
| 6442 | return true; |
| 6443 | } |
| 6444 | |
| 6445 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6446 | * igb_get_headlen - determine size of header for LRO/GRO |
| 6447 | * @data: pointer to the start of the headers |
| 6448 | * @max_len: total length of section to find headers in |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6449 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6450 | * This function is meant to determine the length of headers that will |
| 6451 | * be recognized by hardware for LRO, and GRO offloads. The main |
| 6452 | * motivation of doing this is to only perform one pull for IPv4 TCP |
| 6453 | * packets so that we can do basic things like calculating the gso_size |
| 6454 | * based on the average data per packet. |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6455 | **/ |
| 6456 | static unsigned int igb_get_headlen(unsigned char *data, |
| 6457 | unsigned int max_len) |
Alexander Duyck | 2d94d8a | 2009-07-23 18:10:06 +0000 | [diff] [blame] | 6458 | { |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6459 | union { |
| 6460 | unsigned char *network; |
| 6461 | /* l2 headers */ |
| 6462 | struct ethhdr *eth; |
| 6463 | struct vlan_hdr *vlan; |
| 6464 | /* l3 headers */ |
| 6465 | struct iphdr *ipv4; |
| 6466 | struct ipv6hdr *ipv6; |
| 6467 | } hdr; |
| 6468 | __be16 protocol; |
| 6469 | u8 nexthdr = 0; /* default to not TCP */ |
| 6470 | u8 hlen; |
| 6471 | |
| 6472 | /* this should never happen, but better safe than sorry */ |
| 6473 | if (max_len < ETH_HLEN) |
| 6474 | return max_len; |
| 6475 | |
| 6476 | /* initialize network frame pointer */ |
| 6477 | hdr.network = data; |
| 6478 | |
| 6479 | /* set first protocol and move network header forward */ |
| 6480 | protocol = hdr.eth->h_proto; |
| 6481 | hdr.network += ETH_HLEN; |
| 6482 | |
| 6483 | /* handle any vlan tag if present */ |
| 6484 | if (protocol == __constant_htons(ETH_P_8021Q)) { |
| 6485 | if ((hdr.network - data) > (max_len - VLAN_HLEN)) |
| 6486 | return max_len; |
| 6487 | |
| 6488 | protocol = hdr.vlan->h_vlan_encapsulated_proto; |
| 6489 | hdr.network += VLAN_HLEN; |
| 6490 | } |
| 6491 | |
| 6492 | /* handle L3 protocols */ |
| 6493 | if (protocol == __constant_htons(ETH_P_IP)) { |
| 6494 | if ((hdr.network - data) > (max_len - sizeof(struct iphdr))) |
| 6495 | return max_len; |
| 6496 | |
| 6497 | /* access ihl as a u8 to avoid unaligned access on ia64 */ |
| 6498 | hlen = (hdr.network[0] & 0x0F) << 2; |
| 6499 | |
| 6500 | /* verify hlen meets minimum size requirements */ |
| 6501 | if (hlen < sizeof(struct iphdr)) |
| 6502 | return hdr.network - data; |
| 6503 | |
Alexander Duyck | f2fb4ab | 2012-11-13 01:13:38 +0000 | [diff] [blame] | 6504 | /* record next protocol if header is present */ |
Alexander Duyck | b9555f6 | 2013-02-01 08:56:47 +0000 | [diff] [blame] | 6505 | if (!(hdr.ipv4->frag_off & htons(IP_OFFSET))) |
Alexander Duyck | f2fb4ab | 2012-11-13 01:13:38 +0000 | [diff] [blame] | 6506 | nexthdr = hdr.ipv4->protocol; |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6507 | } else if (protocol == __constant_htons(ETH_P_IPV6)) { |
| 6508 | if ((hdr.network - data) > (max_len - sizeof(struct ipv6hdr))) |
| 6509 | return max_len; |
| 6510 | |
| 6511 | /* record next protocol */ |
| 6512 | nexthdr = hdr.ipv6->nexthdr; |
Alexander Duyck | f2fb4ab | 2012-11-13 01:13:38 +0000 | [diff] [blame] | 6513 | hlen = sizeof(struct ipv6hdr); |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6514 | } else { |
| 6515 | return hdr.network - data; |
| 6516 | } |
| 6517 | |
Alexander Duyck | f2fb4ab | 2012-11-13 01:13:38 +0000 | [diff] [blame] | 6518 | /* relocate pointer to start of L4 header */ |
| 6519 | hdr.network += hlen; |
| 6520 | |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6521 | /* finally sort out TCP */ |
| 6522 | if (nexthdr == IPPROTO_TCP) { |
| 6523 | if ((hdr.network - data) > (max_len - sizeof(struct tcphdr))) |
| 6524 | return max_len; |
| 6525 | |
| 6526 | /* access doff as a u8 to avoid unaligned access on ia64 */ |
| 6527 | hlen = (hdr.network[12] & 0xF0) >> 2; |
| 6528 | |
| 6529 | /* verify hlen meets minimum size requirements */ |
| 6530 | if (hlen < sizeof(struct tcphdr)) |
| 6531 | return hdr.network - data; |
| 6532 | |
| 6533 | hdr.network += hlen; |
| 6534 | } else if (nexthdr == IPPROTO_UDP) { |
| 6535 | if ((hdr.network - data) > (max_len - sizeof(struct udphdr))) |
| 6536 | return max_len; |
| 6537 | |
| 6538 | hdr.network += sizeof(struct udphdr); |
| 6539 | } |
| 6540 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6541 | /* If everything has gone correctly hdr.network should be the |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6542 | * data section of the packet and will be the end of the header. |
| 6543 | * If not then it probably represents the end of the last recognized |
| 6544 | * header. |
Alexander Duyck | 2d94d8a | 2009-07-23 18:10:06 +0000 | [diff] [blame] | 6545 | */ |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6546 | if ((hdr.network - data) < max_len) |
| 6547 | return hdr.network - data; |
| 6548 | else |
| 6549 | return max_len; |
| 6550 | } |
| 6551 | |
| 6552 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6553 | * igb_pull_tail - igb specific version of skb_pull_tail |
| 6554 | * @rx_ring: rx descriptor ring packet is being transacted on |
| 6555 | * @rx_desc: pointer to the EOP Rx descriptor |
| 6556 | * @skb: pointer to current skb being adjusted |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6557 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6558 | * This function is an igb specific version of __pskb_pull_tail. The |
| 6559 | * main difference between this version and the original function is that |
| 6560 | * this function can make several assumptions about the state of things |
| 6561 | * that allow for significant optimizations versus the standard function. |
| 6562 | * As a result we can do things like drop a frag and maintain an accurate |
| 6563 | * truesize for the skb. |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6564 | */ |
| 6565 | static void igb_pull_tail(struct igb_ring *rx_ring, |
| 6566 | union e1000_adv_rx_desc *rx_desc, |
| 6567 | struct sk_buff *skb) |
| 6568 | { |
| 6569 | struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0]; |
| 6570 | unsigned char *va; |
| 6571 | unsigned int pull_len; |
| 6572 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6573 | /* it is valid to use page_address instead of kmap since we are |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6574 | * working with pages allocated out of the lomem pool per |
| 6575 | * alloc_page(GFP_ATOMIC) |
| 6576 | */ |
| 6577 | va = skb_frag_address(frag); |
| 6578 | |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6579 | if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP)) { |
| 6580 | /* retrieve timestamp from buffer */ |
| 6581 | igb_ptp_rx_pktstamp(rx_ring->q_vector, va, skb); |
| 6582 | |
| 6583 | /* update pointers to remove timestamp header */ |
| 6584 | skb_frag_size_sub(frag, IGB_TS_HDR_LEN); |
| 6585 | frag->page_offset += IGB_TS_HDR_LEN; |
| 6586 | skb->data_len -= IGB_TS_HDR_LEN; |
| 6587 | skb->len -= IGB_TS_HDR_LEN; |
| 6588 | |
| 6589 | /* move va to start of packet data */ |
| 6590 | va += IGB_TS_HDR_LEN; |
| 6591 | } |
| 6592 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6593 | /* we need the header to contain the greater of either ETH_HLEN or |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6594 | * 60 bytes if the skb->len is less than 60 for skb_pad. |
| 6595 | */ |
| 6596 | pull_len = igb_get_headlen(va, IGB_RX_HDR_LEN); |
| 6597 | |
| 6598 | /* align pull length to size of long to optimize memcpy performance */ |
| 6599 | skb_copy_to_linear_data(skb, va, ALIGN(pull_len, sizeof(long))); |
| 6600 | |
| 6601 | /* update all of the pointers */ |
| 6602 | skb_frag_size_sub(frag, pull_len); |
| 6603 | frag->page_offset += pull_len; |
| 6604 | skb->data_len -= pull_len; |
| 6605 | skb->tail += pull_len; |
| 6606 | } |
| 6607 | |
| 6608 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6609 | * igb_cleanup_headers - Correct corrupted or empty headers |
| 6610 | * @rx_ring: rx descriptor ring packet is being transacted on |
| 6611 | * @rx_desc: pointer to the EOP Rx descriptor |
| 6612 | * @skb: pointer to current skb being fixed |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6613 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6614 | * Address the case where we are pulling data in on pages only |
| 6615 | * and as such no data is present in the skb header. |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6616 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6617 | * In addition if skb is not at least 60 bytes we need to pad it so that |
| 6618 | * it is large enough to qualify as a valid Ethernet frame. |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6619 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6620 | * Returns true if an error was encountered and skb was freed. |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6621 | **/ |
| 6622 | static bool igb_cleanup_headers(struct igb_ring *rx_ring, |
| 6623 | union e1000_adv_rx_desc *rx_desc, |
| 6624 | struct sk_buff *skb) |
| 6625 | { |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6626 | if (unlikely((igb_test_staterr(rx_desc, |
| 6627 | E1000_RXDEXT_ERR_FRAME_ERR_MASK)))) { |
| 6628 | struct net_device *netdev = rx_ring->netdev; |
| 6629 | if (!(netdev->features & NETIF_F_RXALL)) { |
| 6630 | dev_kfree_skb_any(skb); |
| 6631 | return true; |
| 6632 | } |
| 6633 | } |
| 6634 | |
| 6635 | /* place header in linear portion of buffer */ |
| 6636 | if (skb_is_nonlinear(skb)) |
| 6637 | igb_pull_tail(rx_ring, rx_desc, skb); |
| 6638 | |
| 6639 | /* if skb_pad returns an error the skb was freed */ |
| 6640 | if (unlikely(skb->len < 60)) { |
| 6641 | int pad_len = 60 - skb->len; |
| 6642 | |
| 6643 | if (skb_pad(skb, pad_len)) |
| 6644 | return true; |
| 6645 | __skb_put(skb, pad_len); |
| 6646 | } |
| 6647 | |
| 6648 | return false; |
Alexander Duyck | 2d94d8a | 2009-07-23 18:10:06 +0000 | [diff] [blame] | 6649 | } |
| 6650 | |
Alexander Duyck | db2ee5b | 2012-09-25 00:30:57 +0000 | [diff] [blame] | 6651 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6652 | * igb_process_skb_fields - Populate skb header fields from Rx descriptor |
| 6653 | * @rx_ring: rx descriptor ring packet is being transacted on |
| 6654 | * @rx_desc: pointer to the EOP Rx descriptor |
| 6655 | * @skb: pointer to current skb being populated |
Alexander Duyck | db2ee5b | 2012-09-25 00:30:57 +0000 | [diff] [blame] | 6656 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6657 | * This function checks the ring, descriptor, and packet information in |
| 6658 | * order to populate the hash, checksum, VLAN, timestamp, protocol, and |
| 6659 | * other fields within the skb. |
Alexander Duyck | db2ee5b | 2012-09-25 00:30:57 +0000 | [diff] [blame] | 6660 | **/ |
| 6661 | static void igb_process_skb_fields(struct igb_ring *rx_ring, |
| 6662 | union e1000_adv_rx_desc *rx_desc, |
| 6663 | struct sk_buff *skb) |
| 6664 | { |
| 6665 | struct net_device *dev = rx_ring->netdev; |
| 6666 | |
| 6667 | igb_rx_hash(rx_ring, rx_desc, skb); |
| 6668 | |
| 6669 | igb_rx_checksum(rx_ring, rx_desc, skb); |
| 6670 | |
Matthew Vick | 20a4841 | 2013-04-24 07:42:06 +0000 | [diff] [blame] | 6671 | igb_ptp_rx_hwtstamp(rx_ring, rx_desc, skb); |
Alexander Duyck | db2ee5b | 2012-09-25 00:30:57 +0000 | [diff] [blame] | 6672 | |
Patrick McHardy | f646968 | 2013-04-19 02:04:27 +0000 | [diff] [blame] | 6673 | if ((dev->features & NETIF_F_HW_VLAN_CTAG_RX) && |
Alexander Duyck | db2ee5b | 2012-09-25 00:30:57 +0000 | [diff] [blame] | 6674 | igb_test_staterr(rx_desc, E1000_RXD_STAT_VP)) { |
| 6675 | u16 vid; |
| 6676 | if (igb_test_staterr(rx_desc, E1000_RXDEXT_STATERR_LB) && |
| 6677 | test_bit(IGB_RING_FLAG_RX_LB_VLAN_BSWAP, &rx_ring->flags)) |
| 6678 | vid = be16_to_cpu(rx_desc->wb.upper.vlan); |
| 6679 | else |
| 6680 | vid = le16_to_cpu(rx_desc->wb.upper.vlan); |
| 6681 | |
Patrick McHardy | 86a9bad | 2013-04-19 02:04:30 +0000 | [diff] [blame] | 6682 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid); |
Alexander Duyck | db2ee5b | 2012-09-25 00:30:57 +0000 | [diff] [blame] | 6683 | } |
| 6684 | |
| 6685 | skb_record_rx_queue(skb, rx_ring->queue_index); |
| 6686 | |
| 6687 | skb->protocol = eth_type_trans(skb, rx_ring->netdev); |
| 6688 | } |
| 6689 | |
Alexander Duyck | 2e334ee | 2012-09-25 00:31:07 +0000 | [diff] [blame] | 6690 | static bool igb_clean_rx_irq(struct igb_q_vector *q_vector, const int budget) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6691 | { |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 6692 | struct igb_ring *rx_ring = q_vector->rx.ring; |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6693 | struct sk_buff *skb = rx_ring->skb; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6694 | unsigned int total_bytes = 0, total_packets = 0; |
Alexander Duyck | 16eb881 | 2011-08-26 07:43:54 +0000 | [diff] [blame] | 6695 | u16 cleaned_count = igb_desc_unused(rx_ring); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6696 | |
Alexander Duyck | 2e334ee | 2012-09-25 00:31:07 +0000 | [diff] [blame] | 6697 | do { |
| 6698 | union e1000_adv_rx_desc *rx_desc; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6699 | |
Alexander Duyck | 2e334ee | 2012-09-25 00:31:07 +0000 | [diff] [blame] | 6700 | /* return some buffers to hardware, one at a time is too slow */ |
| 6701 | if (cleaned_count >= IGB_RX_BUFFER_WRITE) { |
| 6702 | igb_alloc_rx_buffers(rx_ring, cleaned_count); |
| 6703 | cleaned_count = 0; |
Alexander Duyck | bf36c1a | 2008-07-08 15:11:40 -0700 | [diff] [blame] | 6704 | } |
| 6705 | |
Alexander Duyck | 2e334ee | 2012-09-25 00:31:07 +0000 | [diff] [blame] | 6706 | rx_desc = IGB_RX_DESC(rx_ring, rx_ring->next_to_clean); |
Alexander Duyck | bf36c1a | 2008-07-08 15:11:40 -0700 | [diff] [blame] | 6707 | |
Alexander Duyck | 2e334ee | 2012-09-25 00:31:07 +0000 | [diff] [blame] | 6708 | if (!igb_test_staterr(rx_desc, E1000_RXD_STAT_DD)) |
| 6709 | break; |
Alexander Duyck | bf36c1a | 2008-07-08 15:11:40 -0700 | [diff] [blame] | 6710 | |
Alexander Duyck | 74e238e | 2013-02-02 05:07:11 +0000 | [diff] [blame] | 6711 | /* This memory barrier is needed to keep us from reading |
| 6712 | * any other fields out of the rx_desc until we know the |
| 6713 | * RXD_STAT_DD bit is set |
| 6714 | */ |
| 6715 | rmb(); |
| 6716 | |
Alexander Duyck | 2e334ee | 2012-09-25 00:31:07 +0000 | [diff] [blame] | 6717 | /* retrieve a buffer from the ring */ |
Alexander Duyck | f9d40f6 | 2013-04-17 20:41:04 +0000 | [diff] [blame] | 6718 | skb = igb_fetch_rx_buffer(rx_ring, rx_desc, skb); |
Alexander Duyck | 16eb881 | 2011-08-26 07:43:54 +0000 | [diff] [blame] | 6719 | |
Alexander Duyck | 2e334ee | 2012-09-25 00:31:07 +0000 | [diff] [blame] | 6720 | /* exit if we failed to retrieve a buffer */ |
| 6721 | if (!skb) |
| 6722 | break; |
| 6723 | |
| 6724 | cleaned_count++; |
| 6725 | |
| 6726 | /* fetch next buffer in frame if non-eop */ |
| 6727 | if (igb_is_non_eop(rx_ring, rx_desc)) |
| 6728 | continue; |
Alexander Duyck | 44390ca | 2011-08-26 07:43:38 +0000 | [diff] [blame] | 6729 | |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6730 | /* verify the packet layout is correct */ |
| 6731 | if (igb_cleanup_headers(rx_ring, rx_desc, skb)) { |
| 6732 | skb = NULL; |
| 6733 | continue; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6734 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6735 | |
Alexander Duyck | db2ee5b | 2012-09-25 00:30:57 +0000 | [diff] [blame] | 6736 | /* probably a little skewed due to removing CRC */ |
Alexander Duyck | 3ceb90f | 2011-08-26 07:46:03 +0000 | [diff] [blame] | 6737 | total_bytes += skb->len; |
Alexander Duyck | 3ceb90f | 2011-08-26 07:46:03 +0000 | [diff] [blame] | 6738 | |
Alexander Duyck | db2ee5b | 2012-09-25 00:30:57 +0000 | [diff] [blame] | 6739 | /* populate checksum, timestamp, VLAN, and protocol */ |
| 6740 | igb_process_skb_fields(rx_ring, rx_desc, skb); |
Alexander Duyck | 3ceb90f | 2011-08-26 07:46:03 +0000 | [diff] [blame] | 6741 | |
Jiri Pirko | b2cb09b | 2011-07-21 03:27:27 +0000 | [diff] [blame] | 6742 | napi_gro_receive(&q_vector->napi, skb); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6743 | |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6744 | /* reset skb pointer */ |
| 6745 | skb = NULL; |
| 6746 | |
Alexander Duyck | 2e334ee | 2012-09-25 00:31:07 +0000 | [diff] [blame] | 6747 | /* update budget accounting */ |
| 6748 | total_packets++; |
| 6749 | } while (likely(total_packets < budget)); |
Alexander Duyck | bf36c1a | 2008-07-08 15:11:40 -0700 | [diff] [blame] | 6750 | |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6751 | /* place incomplete frames back on ring for completion */ |
| 6752 | rx_ring->skb = skb; |
| 6753 | |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 6754 | u64_stats_update_begin(&rx_ring->rx_syncp); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6755 | rx_ring->rx_stats.packets += total_packets; |
| 6756 | rx_ring->rx_stats.bytes += total_bytes; |
Eric Dumazet | 12dcd86 | 2010-10-15 17:27:10 +0000 | [diff] [blame] | 6757 | u64_stats_update_end(&rx_ring->rx_syncp); |
Alexander Duyck | 0ba8299 | 2011-08-26 07:45:47 +0000 | [diff] [blame] | 6758 | q_vector->rx.total_packets += total_packets; |
| 6759 | q_vector->rx.total_bytes += total_bytes; |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6760 | |
| 6761 | if (cleaned_count) |
Alexander Duyck | cd392f5 | 2011-08-26 07:43:59 +0000 | [diff] [blame] | 6762 | igb_alloc_rx_buffers(rx_ring, cleaned_count); |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6763 | |
Alexander Duyck | 2e334ee | 2012-09-25 00:31:07 +0000 | [diff] [blame] | 6764 | return (total_packets < budget); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6765 | } |
| 6766 | |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6767 | static bool igb_alloc_mapped_page(struct igb_ring *rx_ring, |
| 6768 | struct igb_rx_buffer *bi) |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6769 | { |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6770 | struct page *page = bi->page; |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6771 | dma_addr_t dma; |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6772 | |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6773 | /* since we are recycling buffers we should seldom need to alloc */ |
| 6774 | if (likely(page)) |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6775 | return true; |
| 6776 | |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6777 | /* alloc new page for storage */ |
| 6778 | page = __skb_alloc_page(GFP_ATOMIC | __GFP_COLD, NULL); |
| 6779 | if (unlikely(!page)) { |
| 6780 | rx_ring->rx_stats.alloc_failed++; |
| 6781 | return false; |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6782 | } |
| 6783 | |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6784 | /* map page for use */ |
| 6785 | dma = dma_map_page(rx_ring->dev, page, 0, PAGE_SIZE, DMA_FROM_DEVICE); |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6786 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6787 | /* if mapping failed free memory back to system since |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6788 | * there isn't much point in holding memory we can't use |
| 6789 | */ |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6790 | if (dma_mapping_error(rx_ring->dev, dma)) { |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6791 | __free_page(page); |
| 6792 | |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6793 | rx_ring->rx_stats.alloc_failed++; |
| 6794 | return false; |
| 6795 | } |
| 6796 | |
| 6797 | bi->dma = dma; |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6798 | bi->page = page; |
| 6799 | bi->page_offset = 0; |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6800 | |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6801 | return true; |
| 6802 | } |
| 6803 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6804 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6805 | * igb_alloc_rx_buffers - Replace used receive buffers; packet split |
| 6806 | * @adapter: address of board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6807 | **/ |
Alexander Duyck | cd392f5 | 2011-08-26 07:43:59 +0000 | [diff] [blame] | 6808 | void igb_alloc_rx_buffers(struct igb_ring *rx_ring, u16 cleaned_count) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6809 | { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6810 | union e1000_adv_rx_desc *rx_desc; |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 6811 | struct igb_rx_buffer *bi; |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6812 | u16 i = rx_ring->next_to_use; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6813 | |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6814 | /* nothing to do */ |
| 6815 | if (!cleaned_count) |
| 6816 | return; |
| 6817 | |
Alexander Duyck | 6013690 | 2011-08-26 07:44:05 +0000 | [diff] [blame] | 6818 | rx_desc = IGB_RX_DESC(rx_ring, i); |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 6819 | bi = &rx_ring->rx_buffer_info[i]; |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6820 | i -= rx_ring->count; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6821 | |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6822 | do { |
Alexander Duyck | 1a1c225 | 2012-09-25 00:30:52 +0000 | [diff] [blame] | 6823 | if (!igb_alloc_mapped_page(rx_ring, bi)) |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6824 | break; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6825 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6826 | /* Refresh the desc even if buffer_addrs didn't change |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6827 | * because each write-back erases this info. |
| 6828 | */ |
Alexander Duyck | f9d40f6 | 2013-04-17 20:41:04 +0000 | [diff] [blame] | 6829 | rx_desc->read.pkt_addr = cpu_to_le64(bi->dma + bi->page_offset); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6830 | |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6831 | rx_desc++; |
| 6832 | bi++; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6833 | i++; |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6834 | if (unlikely(!i)) { |
Alexander Duyck | 6013690 | 2011-08-26 07:44:05 +0000 | [diff] [blame] | 6835 | rx_desc = IGB_RX_DESC(rx_ring, 0); |
Alexander Duyck | 0603464 | 2011-08-26 07:44:22 +0000 | [diff] [blame] | 6836 | bi = rx_ring->rx_buffer_info; |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6837 | i -= rx_ring->count; |
| 6838 | } |
| 6839 | |
| 6840 | /* clear the hdr_addr for the next_to_use descriptor */ |
| 6841 | rx_desc->read.hdr_addr = 0; |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6842 | |
| 6843 | cleaned_count--; |
| 6844 | } while (cleaned_count); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6845 | |
Alexander Duyck | c023cd8 | 2011-08-26 07:43:43 +0000 | [diff] [blame] | 6846 | i += rx_ring->count; |
| 6847 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6848 | if (rx_ring->next_to_use != i) { |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6849 | /* record the next descriptor to use */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6850 | rx_ring->next_to_use = i; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6851 | |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6852 | /* update next to alloc since we have filled the ring */ |
| 6853 | rx_ring->next_to_alloc = i; |
| 6854 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 6855 | /* Force memory writes to complete before letting h/w |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6856 | * know there are new descriptors to fetch. (Only |
| 6857 | * applicable for weak-ordered memory model archs, |
Alexander Duyck | cbc8e55 | 2012-09-25 00:31:02 +0000 | [diff] [blame] | 6858 | * such as IA-64). |
| 6859 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6860 | wmb(); |
Alexander Duyck | fce99e3 | 2009-10-27 15:51:27 +0000 | [diff] [blame] | 6861 | writel(i, rx_ring->tail); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6862 | } |
| 6863 | } |
| 6864 | |
| 6865 | /** |
| 6866 | * igb_mii_ioctl - |
| 6867 | * @netdev: |
| 6868 | * @ifreq: |
| 6869 | * @cmd: |
| 6870 | **/ |
| 6871 | static int igb_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) |
| 6872 | { |
| 6873 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 6874 | struct mii_ioctl_data *data = if_mii(ifr); |
| 6875 | |
| 6876 | if (adapter->hw.phy.media_type != e1000_media_type_copper) |
| 6877 | return -EOPNOTSUPP; |
| 6878 | |
| 6879 | switch (cmd) { |
| 6880 | case SIOCGMIIPHY: |
| 6881 | data->phy_id = adapter->hw.phy.addr; |
| 6882 | break; |
| 6883 | case SIOCGMIIREG: |
Alexander Duyck | f5f4cf0 | 2008-11-21 21:30:24 -0800 | [diff] [blame] | 6884 | if (igb_read_phy_reg(&adapter->hw, data->reg_num & 0x1F, |
| 6885 | &data->val_out)) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6886 | return -EIO; |
| 6887 | break; |
| 6888 | case SIOCSMIIREG: |
| 6889 | default: |
| 6890 | return -EOPNOTSUPP; |
| 6891 | } |
| 6892 | return 0; |
| 6893 | } |
| 6894 | |
| 6895 | /** |
| 6896 | * igb_ioctl - |
| 6897 | * @netdev: |
| 6898 | * @ifreq: |
| 6899 | * @cmd: |
| 6900 | **/ |
| 6901 | static int igb_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) |
| 6902 | { |
| 6903 | switch (cmd) { |
| 6904 | case SIOCGMIIPHY: |
| 6905 | case SIOCGMIIREG: |
| 6906 | case SIOCSMIIREG: |
| 6907 | return igb_mii_ioctl(netdev, ifr, cmd); |
Patrick Ohly | c6cb090 | 2009-02-12 05:03:42 +0000 | [diff] [blame] | 6908 | case SIOCSHWTSTAMP: |
Matthew Vick | a79f4f8 | 2012-08-10 05:40:44 +0000 | [diff] [blame] | 6909 | return igb_ptp_hwtstamp_ioctl(netdev, ifr, cmd); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6910 | default: |
| 6911 | return -EOPNOTSUPP; |
| 6912 | } |
| 6913 | } |
| 6914 | |
Alexander Duyck | 009bc06 | 2009-07-23 18:08:35 +0000 | [diff] [blame] | 6915 | s32 igb_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value) |
| 6916 | { |
| 6917 | struct igb_adapter *adapter = hw->back; |
Alexander Duyck | 009bc06 | 2009-07-23 18:08:35 +0000 | [diff] [blame] | 6918 | |
Jiang Liu | 23d028c | 2012-08-20 13:32:20 -0600 | [diff] [blame] | 6919 | if (pcie_capability_read_word(adapter->pdev, reg, value)) |
Alexander Duyck | 009bc06 | 2009-07-23 18:08:35 +0000 | [diff] [blame] | 6920 | return -E1000_ERR_CONFIG; |
| 6921 | |
Alexander Duyck | 009bc06 | 2009-07-23 18:08:35 +0000 | [diff] [blame] | 6922 | return 0; |
| 6923 | } |
| 6924 | |
| 6925 | s32 igb_write_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value) |
| 6926 | { |
| 6927 | struct igb_adapter *adapter = hw->back; |
Alexander Duyck | 009bc06 | 2009-07-23 18:08:35 +0000 | [diff] [blame] | 6928 | |
Jiang Liu | 23d028c | 2012-08-20 13:32:20 -0600 | [diff] [blame] | 6929 | if (pcie_capability_write_word(adapter->pdev, reg, *value)) |
Alexander Duyck | 009bc06 | 2009-07-23 18:08:35 +0000 | [diff] [blame] | 6930 | return -E1000_ERR_CONFIG; |
| 6931 | |
Alexander Duyck | 009bc06 | 2009-07-23 18:08:35 +0000 | [diff] [blame] | 6932 | return 0; |
| 6933 | } |
| 6934 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 6935 | static void igb_vlan_mode(struct net_device *netdev, netdev_features_t features) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6936 | { |
| 6937 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 6938 | struct e1000_hw *hw = &adapter->hw; |
| 6939 | u32 ctrl, rctl; |
Patrick McHardy | f646968 | 2013-04-19 02:04:27 +0000 | [diff] [blame] | 6940 | bool enable = !!(features & NETIF_F_HW_VLAN_CTAG_RX); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6941 | |
Alexander Duyck | 5faf030 | 2011-08-26 07:46:08 +0000 | [diff] [blame] | 6942 | if (enable) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6943 | /* enable VLAN tag insert/strip */ |
| 6944 | ctrl = rd32(E1000_CTRL); |
| 6945 | ctrl |= E1000_CTRL_VME; |
| 6946 | wr32(E1000_CTRL, ctrl); |
| 6947 | |
Alexander Duyck | 5146623 | 2009-10-27 23:47:35 +0000 | [diff] [blame] | 6948 | /* Disable CFI check */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6949 | rctl = rd32(E1000_RCTL); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6950 | rctl &= ~E1000_RCTL_CFIEN; |
| 6951 | wr32(E1000_RCTL, rctl); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6952 | } else { |
| 6953 | /* disable VLAN tag insert/strip */ |
| 6954 | ctrl = rd32(E1000_CTRL); |
| 6955 | ctrl &= ~E1000_CTRL_VME; |
| 6956 | wr32(E1000_CTRL, ctrl); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6957 | } |
| 6958 | |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 6959 | igb_rlpml_set(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6960 | } |
| 6961 | |
Patrick McHardy | 80d5c36 | 2013-04-19 02:04:28 +0000 | [diff] [blame] | 6962 | static int igb_vlan_rx_add_vid(struct net_device *netdev, |
| 6963 | __be16 proto, u16 vid) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6964 | { |
| 6965 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 6966 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 6967 | int pf_id = adapter->vfs_allocated_count; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6968 | |
Alexander Duyck | 5146623 | 2009-10-27 23:47:35 +0000 | [diff] [blame] | 6969 | /* attempt to add filter to vlvf array */ |
| 6970 | igb_vlvf_set(adapter, vid, true, pf_id); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 6971 | |
Alexander Duyck | 5146623 | 2009-10-27 23:47:35 +0000 | [diff] [blame] | 6972 | /* add the filter since PF can receive vlans w/o entry in vlvf */ |
| 6973 | igb_vfta_set(hw, vid, true); |
Jiri Pirko | b2cb09b | 2011-07-21 03:27:27 +0000 | [diff] [blame] | 6974 | |
| 6975 | set_bit(vid, adapter->active_vlans); |
Jiri Pirko | 8e58613 | 2011-12-08 19:52:37 -0500 | [diff] [blame] | 6976 | |
| 6977 | return 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6978 | } |
| 6979 | |
Patrick McHardy | 80d5c36 | 2013-04-19 02:04:28 +0000 | [diff] [blame] | 6980 | static int igb_vlan_rx_kill_vid(struct net_device *netdev, |
| 6981 | __be16 proto, u16 vid) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6982 | { |
| 6983 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 6984 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 6985 | int pf_id = adapter->vfs_allocated_count; |
Alexander Duyck | 5146623 | 2009-10-27 23:47:35 +0000 | [diff] [blame] | 6986 | s32 err; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6987 | |
Alexander Duyck | 5146623 | 2009-10-27 23:47:35 +0000 | [diff] [blame] | 6988 | /* remove vlan from VLVF table array */ |
| 6989 | err = igb_vlvf_set(adapter, vid, false, pf_id); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6990 | |
Alexander Duyck | 5146623 | 2009-10-27 23:47:35 +0000 | [diff] [blame] | 6991 | /* if vid was not present in VLVF just remove it from table */ |
| 6992 | if (err) |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 6993 | igb_vfta_set(hw, vid, false); |
Jiri Pirko | b2cb09b | 2011-07-21 03:27:27 +0000 | [diff] [blame] | 6994 | |
| 6995 | clear_bit(vid, adapter->active_vlans); |
Jiri Pirko | 8e58613 | 2011-12-08 19:52:37 -0500 | [diff] [blame] | 6996 | |
| 6997 | return 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 6998 | } |
| 6999 | |
| 7000 | static void igb_restore_vlan(struct igb_adapter *adapter) |
| 7001 | { |
Jiri Pirko | b2cb09b | 2011-07-21 03:27:27 +0000 | [diff] [blame] | 7002 | u16 vid; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7003 | |
Alexander Duyck | 5faf030 | 2011-08-26 07:46:08 +0000 | [diff] [blame] | 7004 | igb_vlan_mode(adapter->netdev, adapter->netdev->features); |
| 7005 | |
Jiri Pirko | b2cb09b | 2011-07-21 03:27:27 +0000 | [diff] [blame] | 7006 | for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID) |
Patrick McHardy | 80d5c36 | 2013-04-19 02:04:28 +0000 | [diff] [blame] | 7007 | igb_vlan_rx_add_vid(adapter->netdev, htons(ETH_P_8021Q), vid); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7008 | } |
| 7009 | |
David Decotigny | 14ad251 | 2011-04-27 18:32:43 +0000 | [diff] [blame] | 7010 | int igb_set_spd_dplx(struct igb_adapter *adapter, u32 spd, u8 dplx) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7011 | { |
Alexander Duyck | 090b179 | 2009-10-27 23:51:55 +0000 | [diff] [blame] | 7012 | struct pci_dev *pdev = adapter->pdev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7013 | struct e1000_mac_info *mac = &adapter->hw.mac; |
| 7014 | |
| 7015 | mac->autoneg = 0; |
| 7016 | |
David Decotigny | 14ad251 | 2011-04-27 18:32:43 +0000 | [diff] [blame] | 7017 | /* Make sure dplx is at most 1 bit and lsb of speed is not set |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7018 | * for the switch() below to work |
| 7019 | */ |
David Decotigny | 14ad251 | 2011-04-27 18:32:43 +0000 | [diff] [blame] | 7020 | if ((spd & 1) || (dplx & ~1)) |
| 7021 | goto err_inval; |
| 7022 | |
Akeem G. Abodunrin | f502ef7 | 2013-04-05 16:49:06 +0000 | [diff] [blame] | 7023 | /* Fiber NIC's only allow 1000 gbps Full duplex |
| 7024 | * and 100Mbps Full duplex for 100baseFx sfp |
| 7025 | */ |
| 7026 | if (adapter->hw.phy.media_type == e1000_media_type_internal_serdes) { |
| 7027 | switch (spd + dplx) { |
| 7028 | case SPEED_10 + DUPLEX_HALF: |
| 7029 | case SPEED_10 + DUPLEX_FULL: |
| 7030 | case SPEED_100 + DUPLEX_HALF: |
| 7031 | goto err_inval; |
| 7032 | default: |
| 7033 | break; |
| 7034 | } |
| 7035 | } |
Carolyn Wyborny | cd2638a | 2010-10-12 22:27:02 +0000 | [diff] [blame] | 7036 | |
David Decotigny | 14ad251 | 2011-04-27 18:32:43 +0000 | [diff] [blame] | 7037 | switch (spd + dplx) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7038 | case SPEED_10 + DUPLEX_HALF: |
| 7039 | mac->forced_speed_duplex = ADVERTISE_10_HALF; |
| 7040 | break; |
| 7041 | case SPEED_10 + DUPLEX_FULL: |
| 7042 | mac->forced_speed_duplex = ADVERTISE_10_FULL; |
| 7043 | break; |
| 7044 | case SPEED_100 + DUPLEX_HALF: |
| 7045 | mac->forced_speed_duplex = ADVERTISE_100_HALF; |
| 7046 | break; |
| 7047 | case SPEED_100 + DUPLEX_FULL: |
| 7048 | mac->forced_speed_duplex = ADVERTISE_100_FULL; |
| 7049 | break; |
| 7050 | case SPEED_1000 + DUPLEX_FULL: |
| 7051 | mac->autoneg = 1; |
| 7052 | adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL; |
| 7053 | break; |
| 7054 | case SPEED_1000 + DUPLEX_HALF: /* not supported */ |
| 7055 | default: |
David Decotigny | 14ad251 | 2011-04-27 18:32:43 +0000 | [diff] [blame] | 7056 | goto err_inval; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7057 | } |
Jesse Brandeburg | 8376dad | 2012-07-26 02:31:19 +0000 | [diff] [blame] | 7058 | |
| 7059 | /* clear MDI, MDI(-X) override is only allowed when autoneg enabled */ |
| 7060 | adapter->hw.phy.mdix = AUTO_ALL_MODES; |
| 7061 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7062 | return 0; |
David Decotigny | 14ad251 | 2011-04-27 18:32:43 +0000 | [diff] [blame] | 7063 | |
| 7064 | err_inval: |
| 7065 | dev_err(&pdev->dev, "Unsupported Speed/Duplex configuration\n"); |
| 7066 | return -EINVAL; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7067 | } |
| 7068 | |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 7069 | static int __igb_shutdown(struct pci_dev *pdev, bool *enable_wake, |
| 7070 | bool runtime) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7071 | { |
| 7072 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 7073 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 7074 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 7075 | u32 ctrl, rctl, status; |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 7076 | u32 wufc = runtime ? E1000_WUFC_LNKC : adapter->wol; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7077 | #ifdef CONFIG_PM |
| 7078 | int retval = 0; |
| 7079 | #endif |
| 7080 | |
| 7081 | netif_device_detach(netdev); |
| 7082 | |
Alexander Duyck | a88f10e | 2008-07-08 15:13:38 -0700 | [diff] [blame] | 7083 | if (netif_running(netdev)) |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 7084 | __igb_close(netdev, true); |
Alexander Duyck | a88f10e | 2008-07-08 15:13:38 -0700 | [diff] [blame] | 7085 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 7086 | igb_clear_interrupt_scheme(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7087 | |
| 7088 | #ifdef CONFIG_PM |
| 7089 | retval = pci_save_state(pdev); |
| 7090 | if (retval) |
| 7091 | return retval; |
| 7092 | #endif |
| 7093 | |
| 7094 | status = rd32(E1000_STATUS); |
| 7095 | if (status & E1000_STATUS_LU) |
| 7096 | wufc &= ~E1000_WUFC_LNKC; |
| 7097 | |
| 7098 | if (wufc) { |
| 7099 | igb_setup_rctl(adapter); |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 7100 | igb_set_rx_mode(netdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7101 | |
| 7102 | /* turn on all-multi mode if wake on multicast is enabled */ |
| 7103 | if (wufc & E1000_WUFC_MC) { |
| 7104 | rctl = rd32(E1000_RCTL); |
| 7105 | rctl |= E1000_RCTL_MPE; |
| 7106 | wr32(E1000_RCTL, rctl); |
| 7107 | } |
| 7108 | |
| 7109 | ctrl = rd32(E1000_CTRL); |
| 7110 | /* advertise wake from D3Cold */ |
| 7111 | #define E1000_CTRL_ADVD3WUC 0x00100000 |
| 7112 | /* phy power management enable */ |
| 7113 | #define E1000_CTRL_EN_PHY_PWR_MGMT 0x00200000 |
| 7114 | ctrl |= E1000_CTRL_ADVD3WUC; |
| 7115 | wr32(E1000_CTRL, ctrl); |
| 7116 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7117 | /* Allow time for pending master requests to run */ |
Alexander Duyck | 330a6d6 | 2009-10-27 23:51:35 +0000 | [diff] [blame] | 7118 | igb_disable_pcie_master(hw); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7119 | |
| 7120 | wr32(E1000_WUC, E1000_WUC_PME_EN); |
| 7121 | wr32(E1000_WUFC, wufc); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7122 | } else { |
| 7123 | wr32(E1000_WUC, 0); |
| 7124 | wr32(E1000_WUFC, 0); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7125 | } |
| 7126 | |
Rafael J. Wysocki | 3fe7c4c | 2009-03-31 21:23:50 +0000 | [diff] [blame] | 7127 | *enable_wake = wufc || adapter->en_mng_pt; |
| 7128 | if (!*enable_wake) |
Nick Nunley | 88a268c | 2010-02-17 01:01:59 +0000 | [diff] [blame] | 7129 | igb_power_down_link(adapter); |
| 7130 | else |
| 7131 | igb_power_up_link(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7132 | |
| 7133 | /* Release control of h/w to f/w. If f/w is AMT enabled, this |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7134 | * would have already happened in close and is redundant. |
| 7135 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7136 | igb_release_hw_control(adapter); |
| 7137 | |
| 7138 | pci_disable_device(pdev); |
| 7139 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7140 | return 0; |
| 7141 | } |
| 7142 | |
| 7143 | #ifdef CONFIG_PM |
Emil Tantilov | d9dd966 | 2012-01-28 08:10:35 +0000 | [diff] [blame] | 7144 | #ifdef CONFIG_PM_SLEEP |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 7145 | static int igb_suspend(struct device *dev) |
Rafael J. Wysocki | 3fe7c4c | 2009-03-31 21:23:50 +0000 | [diff] [blame] | 7146 | { |
| 7147 | int retval; |
| 7148 | bool wake; |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 7149 | struct pci_dev *pdev = to_pci_dev(dev); |
Rafael J. Wysocki | 3fe7c4c | 2009-03-31 21:23:50 +0000 | [diff] [blame] | 7150 | |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 7151 | retval = __igb_shutdown(pdev, &wake, 0); |
Rafael J. Wysocki | 3fe7c4c | 2009-03-31 21:23:50 +0000 | [diff] [blame] | 7152 | if (retval) |
| 7153 | return retval; |
| 7154 | |
| 7155 | if (wake) { |
| 7156 | pci_prepare_to_sleep(pdev); |
| 7157 | } else { |
| 7158 | pci_wake_from_d3(pdev, false); |
| 7159 | pci_set_power_state(pdev, PCI_D3hot); |
| 7160 | } |
| 7161 | |
| 7162 | return 0; |
| 7163 | } |
Emil Tantilov | d9dd966 | 2012-01-28 08:10:35 +0000 | [diff] [blame] | 7164 | #endif /* CONFIG_PM_SLEEP */ |
Rafael J. Wysocki | 3fe7c4c | 2009-03-31 21:23:50 +0000 | [diff] [blame] | 7165 | |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 7166 | static int igb_resume(struct device *dev) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7167 | { |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 7168 | struct pci_dev *pdev = to_pci_dev(dev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7169 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 7170 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 7171 | struct e1000_hw *hw = &adapter->hw; |
| 7172 | u32 err; |
| 7173 | |
| 7174 | pci_set_power_state(pdev, PCI_D0); |
| 7175 | pci_restore_state(pdev); |
Nick Nunley | b94f2d7 | 2010-02-17 01:02:19 +0000 | [diff] [blame] | 7176 | pci_save_state(pdev); |
Taku Izumi | 42bfd33a | 2008-06-20 12:10:30 +0900 | [diff] [blame] | 7177 | |
Alexander Duyck | aed5dec | 2009-02-06 23:16:04 +0000 | [diff] [blame] | 7178 | err = pci_enable_device_mem(pdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7179 | if (err) { |
| 7180 | dev_err(&pdev->dev, |
| 7181 | "igb: Cannot enable PCI device from suspend\n"); |
| 7182 | return err; |
| 7183 | } |
| 7184 | pci_set_master(pdev); |
| 7185 | |
| 7186 | pci_enable_wake(pdev, PCI_D3hot, 0); |
| 7187 | pci_enable_wake(pdev, PCI_D3cold, 0); |
| 7188 | |
Stefan Assmann | 53c7d06 | 2012-12-04 06:00:12 +0000 | [diff] [blame] | 7189 | if (igb_init_interrupt_scheme(adapter, true)) { |
Alexander Duyck | a88f10e | 2008-07-08 15:13:38 -0700 | [diff] [blame] | 7190 | dev_err(&pdev->dev, "Unable to allocate memory for queues\n"); |
| 7191 | return -ENOMEM; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7192 | } |
| 7193 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7194 | igb_reset(adapter); |
Alexander Duyck | a8564f0 | 2009-02-06 23:21:10 +0000 | [diff] [blame] | 7195 | |
| 7196 | /* let the f/w know that the h/w is now under the control of the |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7197 | * driver. |
| 7198 | */ |
Alexander Duyck | a8564f0 | 2009-02-06 23:21:10 +0000 | [diff] [blame] | 7199 | igb_get_hw_control(adapter); |
| 7200 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7201 | wr32(E1000_WUS, ~0); |
| 7202 | |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 7203 | if (netdev->flags & IFF_UP) { |
Alexander Duyck | 0c2cc02 | 2012-09-25 00:31:22 +0000 | [diff] [blame] | 7204 | rtnl_lock(); |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 7205 | err = __igb_open(netdev, true); |
Alexander Duyck | 0c2cc02 | 2012-09-25 00:31:22 +0000 | [diff] [blame] | 7206 | rtnl_unlock(); |
Alexander Duyck | a88f10e | 2008-07-08 15:13:38 -0700 | [diff] [blame] | 7207 | if (err) |
| 7208 | return err; |
| 7209 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7210 | |
| 7211 | netif_device_attach(netdev); |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 7212 | return 0; |
| 7213 | } |
| 7214 | |
| 7215 | #ifdef CONFIG_PM_RUNTIME |
| 7216 | static int igb_runtime_idle(struct device *dev) |
| 7217 | { |
| 7218 | struct pci_dev *pdev = to_pci_dev(dev); |
| 7219 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 7220 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 7221 | |
| 7222 | if (!igb_has_link(adapter)) |
| 7223 | pm_schedule_suspend(dev, MSEC_PER_SEC * 5); |
| 7224 | |
| 7225 | return -EBUSY; |
| 7226 | } |
| 7227 | |
| 7228 | static int igb_runtime_suspend(struct device *dev) |
| 7229 | { |
| 7230 | struct pci_dev *pdev = to_pci_dev(dev); |
| 7231 | int retval; |
| 7232 | bool wake; |
| 7233 | |
| 7234 | retval = __igb_shutdown(pdev, &wake, 1); |
| 7235 | if (retval) |
| 7236 | return retval; |
| 7237 | |
| 7238 | if (wake) { |
| 7239 | pci_prepare_to_sleep(pdev); |
| 7240 | } else { |
| 7241 | pci_wake_from_d3(pdev, false); |
| 7242 | pci_set_power_state(pdev, PCI_D3hot); |
| 7243 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7244 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7245 | return 0; |
| 7246 | } |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 7247 | |
| 7248 | static int igb_runtime_resume(struct device *dev) |
| 7249 | { |
| 7250 | return igb_resume(dev); |
| 7251 | } |
| 7252 | #endif /* CONFIG_PM_RUNTIME */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7253 | #endif |
| 7254 | |
| 7255 | static void igb_shutdown(struct pci_dev *pdev) |
| 7256 | { |
Rafael J. Wysocki | 3fe7c4c | 2009-03-31 21:23:50 +0000 | [diff] [blame] | 7257 | bool wake; |
| 7258 | |
Yan, Zheng | 749ab2c | 2012-01-04 20:23:37 +0000 | [diff] [blame] | 7259 | __igb_shutdown(pdev, &wake, 0); |
Rafael J. Wysocki | 3fe7c4c | 2009-03-31 21:23:50 +0000 | [diff] [blame] | 7260 | |
| 7261 | if (system_state == SYSTEM_POWER_OFF) { |
| 7262 | pci_wake_from_d3(pdev, wake); |
| 7263 | pci_set_power_state(pdev, PCI_D3hot); |
| 7264 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7265 | } |
| 7266 | |
Greg Rose | fa44f2f | 2013-01-17 01:03:06 -0800 | [diff] [blame] | 7267 | #ifdef CONFIG_PCI_IOV |
| 7268 | static int igb_sriov_reinit(struct pci_dev *dev) |
| 7269 | { |
| 7270 | struct net_device *netdev = pci_get_drvdata(dev); |
| 7271 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 7272 | struct pci_dev *pdev = adapter->pdev; |
| 7273 | |
| 7274 | rtnl_lock(); |
| 7275 | |
| 7276 | if (netif_running(netdev)) |
| 7277 | igb_close(netdev); |
| 7278 | |
| 7279 | igb_clear_interrupt_scheme(adapter); |
| 7280 | |
| 7281 | igb_init_queue_configuration(adapter); |
| 7282 | |
| 7283 | if (igb_init_interrupt_scheme(adapter, true)) { |
| 7284 | dev_err(&pdev->dev, "Unable to allocate memory for queues\n"); |
| 7285 | return -ENOMEM; |
| 7286 | } |
| 7287 | |
| 7288 | if (netif_running(netdev)) |
| 7289 | igb_open(netdev); |
| 7290 | |
| 7291 | rtnl_unlock(); |
| 7292 | |
| 7293 | return 0; |
| 7294 | } |
| 7295 | |
| 7296 | static int igb_pci_disable_sriov(struct pci_dev *dev) |
| 7297 | { |
| 7298 | int err = igb_disable_sriov(dev); |
| 7299 | |
| 7300 | if (!err) |
| 7301 | err = igb_sriov_reinit(dev); |
| 7302 | |
| 7303 | return err; |
| 7304 | } |
| 7305 | |
| 7306 | static int igb_pci_enable_sriov(struct pci_dev *dev, int num_vfs) |
| 7307 | { |
| 7308 | int err = igb_enable_sriov(dev, num_vfs); |
| 7309 | |
| 7310 | if (err) |
| 7311 | goto out; |
| 7312 | |
| 7313 | err = igb_sriov_reinit(dev); |
| 7314 | if (!err) |
| 7315 | return num_vfs; |
| 7316 | |
| 7317 | out: |
| 7318 | return err; |
| 7319 | } |
| 7320 | |
| 7321 | #endif |
| 7322 | static int igb_pci_sriov_configure(struct pci_dev *dev, int num_vfs) |
| 7323 | { |
| 7324 | #ifdef CONFIG_PCI_IOV |
| 7325 | if (num_vfs == 0) |
| 7326 | return igb_pci_disable_sriov(dev); |
| 7327 | else |
| 7328 | return igb_pci_enable_sriov(dev, num_vfs); |
| 7329 | #endif |
| 7330 | return 0; |
| 7331 | } |
| 7332 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7333 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7334 | /* Polling 'interrupt' - used by things like netconsole to send skbs |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7335 | * without having to re-enable interrupts. It's not called while |
| 7336 | * the interrupt routine is executing. |
| 7337 | */ |
| 7338 | static void igb_netpoll(struct net_device *netdev) |
| 7339 | { |
| 7340 | struct igb_adapter *adapter = netdev_priv(netdev); |
Alexander Duyck | eebbbdb | 2009-02-06 23:19:29 +0000 | [diff] [blame] | 7341 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 0d1ae7f | 2011-08-26 07:46:34 +0000 | [diff] [blame] | 7342 | struct igb_q_vector *q_vector; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7343 | int i; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7344 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 7345 | for (i = 0; i < adapter->num_q_vectors; i++) { |
Alexander Duyck | 0d1ae7f | 2011-08-26 07:46:34 +0000 | [diff] [blame] | 7346 | q_vector = adapter->q_vector[i]; |
| 7347 | if (adapter->msix_entries) |
| 7348 | wr32(E1000_EIMC, q_vector->eims_value); |
| 7349 | else |
| 7350 | igb_irq_disable(adapter); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 7351 | napi_schedule(&q_vector->napi); |
Alexander Duyck | eebbbdb | 2009-02-06 23:19:29 +0000 | [diff] [blame] | 7352 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7353 | } |
| 7354 | #endif /* CONFIG_NET_POLL_CONTROLLER */ |
| 7355 | |
| 7356 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7357 | * igb_io_error_detected - called when PCI error is detected |
| 7358 | * @pdev: Pointer to PCI device |
| 7359 | * @state: The current pci connection state |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7360 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7361 | * This function is called after a PCI bus error affecting |
| 7362 | * this device has been detected. |
| 7363 | **/ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7364 | static pci_ers_result_t igb_io_error_detected(struct pci_dev *pdev, |
| 7365 | pci_channel_state_t state) |
| 7366 | { |
| 7367 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 7368 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 7369 | |
| 7370 | netif_device_detach(netdev); |
| 7371 | |
Alexander Duyck | 59ed6ee | 2009-06-30 12:46:34 +0000 | [diff] [blame] | 7372 | if (state == pci_channel_io_perm_failure) |
| 7373 | return PCI_ERS_RESULT_DISCONNECT; |
| 7374 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7375 | if (netif_running(netdev)) |
| 7376 | igb_down(adapter); |
| 7377 | pci_disable_device(pdev); |
| 7378 | |
| 7379 | /* Request a slot slot reset. */ |
| 7380 | return PCI_ERS_RESULT_NEED_RESET; |
| 7381 | } |
| 7382 | |
| 7383 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7384 | * igb_io_slot_reset - called after the pci bus has been reset. |
| 7385 | * @pdev: Pointer to PCI device |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7386 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7387 | * Restart the card from scratch, as if from a cold-boot. Implementation |
| 7388 | * resembles the first-half of the igb_resume routine. |
| 7389 | **/ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7390 | static pci_ers_result_t igb_io_slot_reset(struct pci_dev *pdev) |
| 7391 | { |
| 7392 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 7393 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 7394 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 40a914f | 2008-11-27 00:24:37 -0800 | [diff] [blame] | 7395 | pci_ers_result_t result; |
Taku Izumi | 42bfd33a | 2008-06-20 12:10:30 +0900 | [diff] [blame] | 7396 | int err; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7397 | |
Alexander Duyck | aed5dec | 2009-02-06 23:16:04 +0000 | [diff] [blame] | 7398 | if (pci_enable_device_mem(pdev)) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7399 | dev_err(&pdev->dev, |
| 7400 | "Cannot re-enable PCI device after reset.\n"); |
Alexander Duyck | 40a914f | 2008-11-27 00:24:37 -0800 | [diff] [blame] | 7401 | result = PCI_ERS_RESULT_DISCONNECT; |
| 7402 | } else { |
| 7403 | pci_set_master(pdev); |
| 7404 | pci_restore_state(pdev); |
Nick Nunley | b94f2d7 | 2010-02-17 01:02:19 +0000 | [diff] [blame] | 7405 | pci_save_state(pdev); |
Alexander Duyck | 40a914f | 2008-11-27 00:24:37 -0800 | [diff] [blame] | 7406 | |
| 7407 | pci_enable_wake(pdev, PCI_D3hot, 0); |
| 7408 | pci_enable_wake(pdev, PCI_D3cold, 0); |
| 7409 | |
| 7410 | igb_reset(adapter); |
| 7411 | wr32(E1000_WUS, ~0); |
| 7412 | result = PCI_ERS_RESULT_RECOVERED; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7413 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7414 | |
Jeff Kirsher | ea943d4 | 2008-12-11 20:34:19 -0800 | [diff] [blame] | 7415 | err = pci_cleanup_aer_uncorrect_error_status(pdev); |
| 7416 | if (err) { |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7417 | dev_err(&pdev->dev, |
| 7418 | "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n", |
| 7419 | err); |
Jeff Kirsher | ea943d4 | 2008-12-11 20:34:19 -0800 | [diff] [blame] | 7420 | /* non-fatal, continue */ |
| 7421 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7422 | |
Alexander Duyck | 40a914f | 2008-11-27 00:24:37 -0800 | [diff] [blame] | 7423 | return result; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7424 | } |
| 7425 | |
| 7426 | /** |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7427 | * igb_io_resume - called when traffic can start flowing again. |
| 7428 | * @pdev: Pointer to PCI device |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7429 | * |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7430 | * This callback is called when the error recovery driver tells us that |
| 7431 | * its OK to resume normal operation. Implementation resembles the |
| 7432 | * second-half of the igb_resume routine. |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7433 | */ |
| 7434 | static void igb_io_resume(struct pci_dev *pdev) |
| 7435 | { |
| 7436 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 7437 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 7438 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7439 | if (netif_running(netdev)) { |
| 7440 | if (igb_up(adapter)) { |
| 7441 | dev_err(&pdev->dev, "igb_up failed after reset\n"); |
| 7442 | return; |
| 7443 | } |
| 7444 | } |
| 7445 | |
| 7446 | netif_device_attach(netdev); |
| 7447 | |
| 7448 | /* let the f/w know that the h/w is now under the control of the |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7449 | * driver. |
| 7450 | */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7451 | igb_get_hw_control(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7452 | } |
| 7453 | |
Alexander Duyck | 26ad917 | 2009-10-05 06:32:49 +0000 | [diff] [blame] | 7454 | static void igb_rar_set_qsel(struct igb_adapter *adapter, u8 *addr, u32 index, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7455 | u8 qsel) |
Alexander Duyck | 26ad917 | 2009-10-05 06:32:49 +0000 | [diff] [blame] | 7456 | { |
| 7457 | u32 rar_low, rar_high; |
| 7458 | struct e1000_hw *hw = &adapter->hw; |
| 7459 | |
| 7460 | /* HW expects these in little endian so we reverse the byte order |
| 7461 | * from network order (big endian) to little endian |
| 7462 | */ |
| 7463 | rar_low = ((u32) addr[0] | ((u32) addr[1] << 8) | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7464 | ((u32) addr[2] << 16) | ((u32) addr[3] << 24)); |
Alexander Duyck | 26ad917 | 2009-10-05 06:32:49 +0000 | [diff] [blame] | 7465 | rar_high = ((u32) addr[4] | ((u32) addr[5] << 8)); |
| 7466 | |
| 7467 | /* Indicate to hardware the Address is Valid. */ |
| 7468 | rar_high |= E1000_RAH_AV; |
| 7469 | |
| 7470 | if (hw->mac.type == e1000_82575) |
| 7471 | rar_high |= E1000_RAH_POOL_1 * qsel; |
| 7472 | else |
| 7473 | rar_high |= E1000_RAH_POOL_1 << qsel; |
| 7474 | |
| 7475 | wr32(E1000_RAL(index), rar_low); |
| 7476 | wrfl(); |
| 7477 | wr32(E1000_RAH(index), rar_high); |
| 7478 | wrfl(); |
| 7479 | } |
| 7480 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 7481 | static int igb_set_vf_mac(struct igb_adapter *adapter, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7482 | int vf, unsigned char *mac_addr) |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 7483 | { |
| 7484 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 7485 | /* VF MAC addresses start at end of receive addresses and moves |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7486 | * towards the first, as a result a collision should not be possible |
| 7487 | */ |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 7488 | int rar_entry = hw->mac.rar_entry_count - (vf + 1); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 7489 | |
Alexander Duyck | 3768011 | 2009-02-19 20:40:30 -0800 | [diff] [blame] | 7490 | memcpy(adapter->vf_data[vf].vf_mac_addresses, mac_addr, ETH_ALEN); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 7491 | |
Alexander Duyck | 26ad917 | 2009-10-05 06:32:49 +0000 | [diff] [blame] | 7492 | igb_rar_set_qsel(adapter, mac_addr, rar_entry, vf); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 7493 | |
| 7494 | return 0; |
| 7495 | } |
| 7496 | |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 7497 | static int igb_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) |
| 7498 | { |
| 7499 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 7500 | if (!is_valid_ether_addr(mac) || (vf >= adapter->vfs_allocated_count)) |
| 7501 | return -EINVAL; |
| 7502 | adapter->vf_data[vf].flags |= IGB_VF_FLAG_PF_SET_MAC; |
| 7503 | dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf); |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7504 | dev_info(&adapter->pdev->dev, |
| 7505 | "Reload the VF driver to make this change effective."); |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 7506 | if (test_bit(__IGB_DOWN, &adapter->state)) { |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7507 | dev_warn(&adapter->pdev->dev, |
| 7508 | "The VF MAC address has been set, but the PF device is not up.\n"); |
| 7509 | dev_warn(&adapter->pdev->dev, |
| 7510 | "Bring the PF device up before attempting to use the VF device.\n"); |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 7511 | } |
| 7512 | return igb_set_vf_mac(adapter, vf, mac); |
| 7513 | } |
| 7514 | |
Lior Levy | 17dc566 | 2011-02-08 02:28:46 +0000 | [diff] [blame] | 7515 | static int igb_link_mbps(int internal_link_speed) |
| 7516 | { |
| 7517 | switch (internal_link_speed) { |
| 7518 | case SPEED_100: |
| 7519 | return 100; |
| 7520 | case SPEED_1000: |
| 7521 | return 1000; |
| 7522 | default: |
| 7523 | return 0; |
| 7524 | } |
| 7525 | } |
| 7526 | |
| 7527 | static void igb_set_vf_rate_limit(struct e1000_hw *hw, int vf, int tx_rate, |
| 7528 | int link_speed) |
| 7529 | { |
| 7530 | int rf_dec, rf_int; |
| 7531 | u32 bcnrc_val; |
| 7532 | |
| 7533 | if (tx_rate != 0) { |
| 7534 | /* Calculate the rate factor values to set */ |
| 7535 | rf_int = link_speed / tx_rate; |
| 7536 | rf_dec = (link_speed - (rf_int * tx_rate)); |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7537 | rf_dec = (rf_dec * (1 << E1000_RTTBCNRC_RF_INT_SHIFT)) / |
| 7538 | tx_rate; |
Lior Levy | 17dc566 | 2011-02-08 02:28:46 +0000 | [diff] [blame] | 7539 | |
| 7540 | bcnrc_val = E1000_RTTBCNRC_RS_ENA; |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7541 | bcnrc_val |= ((rf_int << E1000_RTTBCNRC_RF_INT_SHIFT) & |
| 7542 | E1000_RTTBCNRC_RF_INT_MASK); |
Lior Levy | 17dc566 | 2011-02-08 02:28:46 +0000 | [diff] [blame] | 7543 | bcnrc_val |= (rf_dec & E1000_RTTBCNRC_RF_DEC_MASK); |
| 7544 | } else { |
| 7545 | bcnrc_val = 0; |
| 7546 | } |
| 7547 | |
| 7548 | wr32(E1000_RTTDQSEL, vf); /* vf X uses queue X */ |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7549 | /* Set global transmit compensation time to the MMW_SIZE in RTTBCNRM |
Lior Levy | f00b0da | 2011-06-04 06:05:03 +0000 | [diff] [blame] | 7550 | * register. MMW_SIZE=0x014 if 9728-byte jumbo is supported. |
| 7551 | */ |
| 7552 | wr32(E1000_RTTBCNRM, 0x14); |
Lior Levy | 17dc566 | 2011-02-08 02:28:46 +0000 | [diff] [blame] | 7553 | wr32(E1000_RTTBCNRC, bcnrc_val); |
| 7554 | } |
| 7555 | |
| 7556 | static void igb_check_vf_rate_limit(struct igb_adapter *adapter) |
| 7557 | { |
| 7558 | int actual_link_speed, i; |
| 7559 | bool reset_rate = false; |
| 7560 | |
| 7561 | /* VF TX rate limit was not set or not supported */ |
| 7562 | if ((adapter->vf_rate_link_speed == 0) || |
| 7563 | (adapter->hw.mac.type != e1000_82576)) |
| 7564 | return; |
| 7565 | |
| 7566 | actual_link_speed = igb_link_mbps(adapter->link_speed); |
| 7567 | if (actual_link_speed != adapter->vf_rate_link_speed) { |
| 7568 | reset_rate = true; |
| 7569 | adapter->vf_rate_link_speed = 0; |
| 7570 | dev_info(&adapter->pdev->dev, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7571 | "Link speed has been changed. VF Transmit rate is disabled\n"); |
Lior Levy | 17dc566 | 2011-02-08 02:28:46 +0000 | [diff] [blame] | 7572 | } |
| 7573 | |
| 7574 | for (i = 0; i < adapter->vfs_allocated_count; i++) { |
| 7575 | if (reset_rate) |
| 7576 | adapter->vf_data[i].tx_rate = 0; |
| 7577 | |
| 7578 | igb_set_vf_rate_limit(&adapter->hw, i, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7579 | adapter->vf_data[i].tx_rate, |
| 7580 | actual_link_speed); |
Lior Levy | 17dc566 | 2011-02-08 02:28:46 +0000 | [diff] [blame] | 7581 | } |
| 7582 | } |
| 7583 | |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 7584 | static int igb_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate) |
| 7585 | { |
Lior Levy | 17dc566 | 2011-02-08 02:28:46 +0000 | [diff] [blame] | 7586 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 7587 | struct e1000_hw *hw = &adapter->hw; |
| 7588 | int actual_link_speed; |
| 7589 | |
| 7590 | if (hw->mac.type != e1000_82576) |
| 7591 | return -EOPNOTSUPP; |
| 7592 | |
| 7593 | actual_link_speed = igb_link_mbps(adapter->link_speed); |
| 7594 | if ((vf >= adapter->vfs_allocated_count) || |
| 7595 | (!(rd32(E1000_STATUS) & E1000_STATUS_LU)) || |
| 7596 | (tx_rate < 0) || (tx_rate > actual_link_speed)) |
| 7597 | return -EINVAL; |
| 7598 | |
| 7599 | adapter->vf_rate_link_speed = actual_link_speed; |
| 7600 | adapter->vf_data[vf].tx_rate = (u16)tx_rate; |
| 7601 | igb_set_vf_rate_limit(hw, vf, tx_rate, actual_link_speed); |
| 7602 | |
| 7603 | return 0; |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 7604 | } |
| 7605 | |
Lior Levy | 70ea478 | 2013-03-03 20:27:48 +0000 | [diff] [blame] | 7606 | static int igb_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, |
| 7607 | bool setting) |
| 7608 | { |
| 7609 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 7610 | struct e1000_hw *hw = &adapter->hw; |
| 7611 | u32 reg_val, reg_offset; |
| 7612 | |
| 7613 | if (!adapter->vfs_allocated_count) |
| 7614 | return -EOPNOTSUPP; |
| 7615 | |
| 7616 | if (vf >= adapter->vfs_allocated_count) |
| 7617 | return -EINVAL; |
| 7618 | |
| 7619 | reg_offset = (hw->mac.type == e1000_82576) ? E1000_DTXSWC : E1000_TXSWC; |
| 7620 | reg_val = rd32(reg_offset); |
| 7621 | if (setting) |
| 7622 | reg_val |= ((1 << vf) | |
| 7623 | (1 << (vf + E1000_DTXSWC_VLAN_SPOOF_SHIFT))); |
| 7624 | else |
| 7625 | reg_val &= ~((1 << vf) | |
| 7626 | (1 << (vf + E1000_DTXSWC_VLAN_SPOOF_SHIFT))); |
| 7627 | wr32(reg_offset, reg_val); |
| 7628 | |
| 7629 | adapter->vf_data[vf].spoofchk_enabled = setting; |
| 7630 | return E1000_SUCCESS; |
| 7631 | } |
| 7632 | |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 7633 | static int igb_ndo_get_vf_config(struct net_device *netdev, |
| 7634 | int vf, struct ifla_vf_info *ivi) |
| 7635 | { |
| 7636 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 7637 | if (vf >= adapter->vfs_allocated_count) |
| 7638 | return -EINVAL; |
| 7639 | ivi->vf = vf; |
| 7640 | memcpy(&ivi->mac, adapter->vf_data[vf].vf_mac_addresses, ETH_ALEN); |
Lior Levy | 17dc566 | 2011-02-08 02:28:46 +0000 | [diff] [blame] | 7641 | ivi->tx_rate = adapter->vf_data[vf].tx_rate; |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 7642 | ivi->vlan = adapter->vf_data[vf].pf_vlan; |
| 7643 | ivi->qos = adapter->vf_data[vf].pf_qos; |
Lior Levy | 70ea478 | 2013-03-03 20:27:48 +0000 | [diff] [blame] | 7644 | ivi->spoofchk = adapter->vf_data[vf].spoofchk_enabled; |
Williams, Mitch A | 8151d29 | 2010-02-10 01:44:24 +0000 | [diff] [blame] | 7645 | return 0; |
| 7646 | } |
| 7647 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 7648 | static void igb_vmm_control(struct igb_adapter *adapter) |
| 7649 | { |
| 7650 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 10d8e90 | 2009-10-27 15:54:04 +0000 | [diff] [blame] | 7651 | u32 reg; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 7652 | |
Alexander Duyck | 52a1dd4 | 2010-03-22 14:07:46 +0000 | [diff] [blame] | 7653 | switch (hw->mac.type) { |
| 7654 | case e1000_82575: |
Carolyn Wyborny | f96a8a0 | 2012-04-06 23:25:19 +0000 | [diff] [blame] | 7655 | case e1000_i210: |
| 7656 | case e1000_i211: |
Carolyn Wyborny | ceb5f13 | 2013-04-18 22:21:30 +0000 | [diff] [blame] | 7657 | case e1000_i354: |
Alexander Duyck | 52a1dd4 | 2010-03-22 14:07:46 +0000 | [diff] [blame] | 7658 | default: |
| 7659 | /* replication is not supported for 82575 */ |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 7660 | return; |
Alexander Duyck | 52a1dd4 | 2010-03-22 14:07:46 +0000 | [diff] [blame] | 7661 | case e1000_82576: |
| 7662 | /* notify HW that the MAC is adding vlan tags */ |
| 7663 | reg = rd32(E1000_DTXCTL); |
| 7664 | reg |= E1000_DTXCTL_VLAN_ADDED; |
| 7665 | wr32(E1000_DTXCTL, reg); |
| 7666 | case e1000_82580: |
| 7667 | /* enable replication vlan tag stripping */ |
| 7668 | reg = rd32(E1000_RPLOLR); |
| 7669 | reg |= E1000_RPLOLR_STRVLAN; |
| 7670 | wr32(E1000_RPLOLR, reg); |
Alexander Duyck | d2ba2ed | 2010-03-22 14:08:06 +0000 | [diff] [blame] | 7671 | case e1000_i350: |
| 7672 | /* none of the above registers are supported by i350 */ |
Alexander Duyck | 52a1dd4 | 2010-03-22 14:07:46 +0000 | [diff] [blame] | 7673 | break; |
| 7674 | } |
Alexander Duyck | 10d8e90 | 2009-10-27 15:54:04 +0000 | [diff] [blame] | 7675 | |
Alexander Duyck | d496030 | 2009-10-27 15:53:45 +0000 | [diff] [blame] | 7676 | if (adapter->vfs_allocated_count) { |
| 7677 | igb_vmdq_set_loopback_pf(hw, true); |
| 7678 | igb_vmdq_set_replication_pf(hw, true); |
Greg Rose | 1380046 | 2010-11-06 02:08:26 +0000 | [diff] [blame] | 7679 | igb_vmdq_set_anti_spoofing_pf(hw, true, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7680 | adapter->vfs_allocated_count); |
Alexander Duyck | d496030 | 2009-10-27 15:53:45 +0000 | [diff] [blame] | 7681 | } else { |
| 7682 | igb_vmdq_set_loopback_pf(hw, false); |
| 7683 | igb_vmdq_set_replication_pf(hw, false); |
| 7684 | } |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 7685 | } |
| 7686 | |
Carolyn Wyborny | b6e0c41 | 2011-10-13 17:29:59 +0000 | [diff] [blame] | 7687 | static void igb_init_dmac(struct igb_adapter *adapter, u32 pba) |
| 7688 | { |
| 7689 | struct e1000_hw *hw = &adapter->hw; |
| 7690 | u32 dmac_thr; |
| 7691 | u16 hwm; |
| 7692 | |
| 7693 | if (hw->mac.type > e1000_82580) { |
| 7694 | if (adapter->flags & IGB_FLAG_DMAC) { |
| 7695 | u32 reg; |
| 7696 | |
| 7697 | /* force threshold to 0. */ |
| 7698 | wr32(E1000_DMCTXTH, 0); |
| 7699 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7700 | /* DMA Coalescing high water mark needs to be greater |
Matthew Vick | e8c626e | 2011-11-17 08:33:12 +0000 | [diff] [blame] | 7701 | * than the Rx threshold. Set hwm to PBA - max frame |
| 7702 | * size in 16B units, capping it at PBA - 6KB. |
Carolyn Wyborny | b6e0c41 | 2011-10-13 17:29:59 +0000 | [diff] [blame] | 7703 | */ |
Matthew Vick | e8c626e | 2011-11-17 08:33:12 +0000 | [diff] [blame] | 7704 | hwm = 64 * pba - adapter->max_frame_size / 16; |
| 7705 | if (hwm < 64 * (pba - 6)) |
| 7706 | hwm = 64 * (pba - 6); |
| 7707 | reg = rd32(E1000_FCRTC); |
| 7708 | reg &= ~E1000_FCRTC_RTH_COAL_MASK; |
| 7709 | reg |= ((hwm << E1000_FCRTC_RTH_COAL_SHIFT) |
| 7710 | & E1000_FCRTC_RTH_COAL_MASK); |
| 7711 | wr32(E1000_FCRTC, reg); |
| 7712 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7713 | /* Set the DMA Coalescing Rx threshold to PBA - 2 * max |
Matthew Vick | e8c626e | 2011-11-17 08:33:12 +0000 | [diff] [blame] | 7714 | * frame size, capping it at PBA - 10KB. |
| 7715 | */ |
| 7716 | dmac_thr = pba - adapter->max_frame_size / 512; |
| 7717 | if (dmac_thr < pba - 10) |
| 7718 | dmac_thr = pba - 10; |
Carolyn Wyborny | b6e0c41 | 2011-10-13 17:29:59 +0000 | [diff] [blame] | 7719 | reg = rd32(E1000_DMACR); |
| 7720 | reg &= ~E1000_DMACR_DMACTHR_MASK; |
Carolyn Wyborny | b6e0c41 | 2011-10-13 17:29:59 +0000 | [diff] [blame] | 7721 | reg |= ((dmac_thr << E1000_DMACR_DMACTHR_SHIFT) |
| 7722 | & E1000_DMACR_DMACTHR_MASK); |
| 7723 | |
| 7724 | /* transition to L0x or L1 if available..*/ |
| 7725 | reg |= (E1000_DMACR_DMAC_EN | E1000_DMACR_DMAC_LX_MASK); |
| 7726 | |
| 7727 | /* watchdog timer= +-1000 usec in 32usec intervals */ |
| 7728 | reg |= (1000 >> 5); |
Matthew Vick | 0c02dd9 | 2012-04-14 05:20:32 +0000 | [diff] [blame] | 7729 | |
| 7730 | /* Disable BMC-to-OS Watchdog Enable */ |
Carolyn Wyborny | ceb5f13 | 2013-04-18 22:21:30 +0000 | [diff] [blame] | 7731 | if (hw->mac.type != e1000_i354) |
| 7732 | reg &= ~E1000_DMACR_DC_BMC2OSW_EN; |
| 7733 | |
Carolyn Wyborny | b6e0c41 | 2011-10-13 17:29:59 +0000 | [diff] [blame] | 7734 | wr32(E1000_DMACR, reg); |
| 7735 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7736 | /* no lower threshold to disable |
Carolyn Wyborny | b6e0c41 | 2011-10-13 17:29:59 +0000 | [diff] [blame] | 7737 | * coalescing(smart fifb)-UTRESH=0 |
| 7738 | */ |
| 7739 | wr32(E1000_DMCRTRH, 0); |
Carolyn Wyborny | b6e0c41 | 2011-10-13 17:29:59 +0000 | [diff] [blame] | 7740 | |
| 7741 | reg = (IGB_DMCTLX_DCFLUSH_DIS | 0x4); |
| 7742 | |
| 7743 | wr32(E1000_DMCTLX, reg); |
| 7744 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7745 | /* free space in tx packet buffer to wake from |
Carolyn Wyborny | b6e0c41 | 2011-10-13 17:29:59 +0000 | [diff] [blame] | 7746 | * DMA coal |
| 7747 | */ |
| 7748 | wr32(E1000_DMCTXTH, (IGB_MIN_TXPBSIZE - |
| 7749 | (IGB_TX_BUF_4096 + adapter->max_frame_size)) >> 6); |
| 7750 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7751 | /* make low power state decision controlled |
Carolyn Wyborny | b6e0c41 | 2011-10-13 17:29:59 +0000 | [diff] [blame] | 7752 | * by DMA coal |
| 7753 | */ |
| 7754 | reg = rd32(E1000_PCIEMISC); |
| 7755 | reg &= ~E1000_PCIEMISC_LX_DECISION; |
| 7756 | wr32(E1000_PCIEMISC, reg); |
| 7757 | } /* endif adapter->dmac is not disabled */ |
| 7758 | } else if (hw->mac.type == e1000_82580) { |
| 7759 | u32 reg = rd32(E1000_PCIEMISC); |
| 7760 | wr32(E1000_PCIEMISC, reg & ~E1000_PCIEMISC_LX_DECISION); |
| 7761 | wr32(E1000_DMACR, 0); |
| 7762 | } |
| 7763 | } |
| 7764 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7765 | /** |
| 7766 | * igb_read_i2c_byte - Reads 8 bit word over I2C |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 7767 | * @hw: pointer to hardware structure |
| 7768 | * @byte_offset: byte offset to read |
| 7769 | * @dev_addr: device address |
| 7770 | * @data: value read |
| 7771 | * |
| 7772 | * Performs byte read operation over I2C interface at |
| 7773 | * a specified device address. |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7774 | **/ |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 7775 | s32 igb_read_i2c_byte(struct e1000_hw *hw, u8 byte_offset, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7776 | u8 dev_addr, u8 *data) |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 7777 | { |
| 7778 | struct igb_adapter *adapter = container_of(hw, struct igb_adapter, hw); |
Carolyn Wyborny | 603e86f | 2013-02-20 07:40:55 +0000 | [diff] [blame] | 7779 | struct i2c_client *this_client = adapter->i2c_client; |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 7780 | s32 status; |
| 7781 | u16 swfw_mask = 0; |
| 7782 | |
| 7783 | if (!this_client) |
| 7784 | return E1000_ERR_I2C; |
| 7785 | |
| 7786 | swfw_mask = E1000_SWFW_PHY0_SM; |
| 7787 | |
| 7788 | if (hw->mac.ops.acquire_swfw_sync(hw, swfw_mask) |
| 7789 | != E1000_SUCCESS) |
| 7790 | return E1000_ERR_SWFW_SYNC; |
| 7791 | |
| 7792 | status = i2c_smbus_read_byte_data(this_client, byte_offset); |
| 7793 | hw->mac.ops.release_swfw_sync(hw, swfw_mask); |
| 7794 | |
| 7795 | if (status < 0) |
| 7796 | return E1000_ERR_I2C; |
| 7797 | else { |
| 7798 | *data = status; |
| 7799 | return E1000_SUCCESS; |
| 7800 | } |
| 7801 | } |
| 7802 | |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7803 | /** |
| 7804 | * igb_write_i2c_byte - Writes 8 bit word over I2C |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 7805 | * @hw: pointer to hardware structure |
| 7806 | * @byte_offset: byte offset to write |
| 7807 | * @dev_addr: device address |
| 7808 | * @data: value to write |
| 7809 | * |
| 7810 | * Performs byte write operation over I2C interface at |
| 7811 | * a specified device address. |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7812 | **/ |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 7813 | s32 igb_write_i2c_byte(struct e1000_hw *hw, u8 byte_offset, |
Jeff Kirsher | b980ac1 | 2013-02-23 07:29:56 +0000 | [diff] [blame] | 7814 | u8 dev_addr, u8 data) |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 7815 | { |
| 7816 | struct igb_adapter *adapter = container_of(hw, struct igb_adapter, hw); |
Carolyn Wyborny | 603e86f | 2013-02-20 07:40:55 +0000 | [diff] [blame] | 7817 | struct i2c_client *this_client = adapter->i2c_client; |
Carolyn Wyborny | 441fc6f | 2012-12-07 03:00:30 +0000 | [diff] [blame] | 7818 | s32 status; |
| 7819 | u16 swfw_mask = E1000_SWFW_PHY0_SM; |
| 7820 | |
| 7821 | if (!this_client) |
| 7822 | return E1000_ERR_I2C; |
| 7823 | |
| 7824 | if (hw->mac.ops.acquire_swfw_sync(hw, swfw_mask) != E1000_SUCCESS) |
| 7825 | return E1000_ERR_SWFW_SYNC; |
| 7826 | status = i2c_smbus_write_byte_data(this_client, byte_offset, data); |
| 7827 | hw->mac.ops.release_swfw_sync(hw, swfw_mask); |
| 7828 | |
| 7829 | if (status) |
| 7830 | return E1000_ERR_I2C; |
| 7831 | else |
| 7832 | return E1000_SUCCESS; |
| 7833 | |
| 7834 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 7835 | /* igb_main.c */ |