Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1 | /******************************************************************************* |
| 2 | |
| 3 | Intel(R) Gigabit Ethernet Linux driver |
Alexander Duyck | 86d5d38 | 2009-02-06 23:23:12 +0000 | [diff] [blame] | 4 | Copyright(c) 2007-2009 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 | |
| 28 | #include <linux/module.h> |
| 29 | #include <linux/types.h> |
| 30 | #include <linux/init.h> |
| 31 | #include <linux/vmalloc.h> |
| 32 | #include <linux/pagemap.h> |
| 33 | #include <linux/netdevice.h> |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 34 | #include <linux/ipv6.h> |
| 35 | #include <net/checksum.h> |
| 36 | #include <net/ip6_checksum.h> |
Patrick Ohly | c6cb090 | 2009-02-12 05:03:42 +0000 | [diff] [blame] | 37 | #include <linux/net_tstamp.h> |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 38 | #include <linux/mii.h> |
| 39 | #include <linux/ethtool.h> |
| 40 | #include <linux/if_vlan.h> |
| 41 | #include <linux/pci.h> |
Alexander Duyck | c54106b | 2008-10-16 21:26:57 -0700 | [diff] [blame] | 42 | #include <linux/pci-aspm.h> |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 43 | #include <linux/delay.h> |
| 44 | #include <linux/interrupt.h> |
| 45 | #include <linux/if_ether.h> |
Alexander Duyck | 40a914f | 2008-11-27 00:24:37 -0800 | [diff] [blame] | 46 | #include <linux/aer.h> |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 47 | #ifdef CONFIG_IGB_DCA |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 48 | #include <linux/dca.h> |
| 49 | #endif |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 50 | #include "igb.h" |
| 51 | |
Alexander Duyck | 86d5d38 | 2009-02-06 23:23:12 +0000 | [diff] [blame] | 52 | #define DRV_VERSION "1.3.16-k2" |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 53 | char igb_driver_name[] = "igb"; |
| 54 | char igb_driver_version[] = DRV_VERSION; |
| 55 | static const char igb_driver_string[] = |
| 56 | "Intel(R) Gigabit Ethernet Network Driver"; |
Alexander Duyck | 86d5d38 | 2009-02-06 23:23:12 +0000 | [diff] [blame] | 57 | static const char igb_copyright[] = "Copyright (c) 2007-2009 Intel Corporation."; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 58 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 59 | static const struct e1000_info *igb_info_tbl[] = { |
| 60 | [board_82575] = &e1000_82575_info, |
| 61 | }; |
| 62 | |
| 63 | static struct pci_device_id igb_pci_tbl[] = { |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 64 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576), board_82575 }, |
Alexander Duyck | 9eb2341 | 2009-03-13 20:42:15 +0000 | [diff] [blame] | 65 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_NS), board_82575 }, |
Alexander Duyck | 747d49b | 2009-10-05 06:33:27 +0000 | [diff] [blame] | 66 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_NS_SERDES), board_82575 }, |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 67 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_FIBER), board_82575 }, |
| 68 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_SERDES), board_82575 }, |
Alexander Duyck | 4703bf7 | 2009-07-23 18:09:48 +0000 | [diff] [blame] | 69 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_SERDES_QUAD), board_82575 }, |
Alexander Duyck | c8ea5ea | 2009-03-13 20:42:35 +0000 | [diff] [blame] | 70 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_QUAD_COPPER), board_82575 }, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 71 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82575EB_COPPER), board_82575 }, |
| 72 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82575EB_FIBER_SERDES), board_82575 }, |
| 73 | { PCI_VDEVICE(INTEL, E1000_DEV_ID_82575GB_QUAD_COPPER), board_82575 }, |
| 74 | /* required last entry */ |
| 75 | {0, } |
| 76 | }; |
| 77 | |
| 78 | MODULE_DEVICE_TABLE(pci, igb_pci_tbl); |
| 79 | |
| 80 | void igb_reset(struct igb_adapter *); |
| 81 | static int igb_setup_all_tx_resources(struct igb_adapter *); |
| 82 | static int igb_setup_all_rx_resources(struct igb_adapter *); |
| 83 | static void igb_free_all_tx_resources(struct igb_adapter *); |
| 84 | static void igb_free_all_rx_resources(struct igb_adapter *); |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 85 | static void igb_setup_mrqc(struct igb_adapter *); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 86 | void igb_update_stats(struct igb_adapter *); |
| 87 | static int igb_probe(struct pci_dev *, const struct pci_device_id *); |
| 88 | static void __devexit igb_remove(struct pci_dev *pdev); |
| 89 | static int igb_sw_init(struct igb_adapter *); |
| 90 | static int igb_open(struct net_device *); |
| 91 | static int igb_close(struct net_device *); |
| 92 | static void igb_configure_tx(struct igb_adapter *); |
| 93 | static void igb_configure_rx(struct igb_adapter *); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 94 | static void igb_clean_all_tx_rings(struct igb_adapter *); |
| 95 | static void igb_clean_all_rx_rings(struct igb_adapter *); |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 96 | static void igb_clean_tx_ring(struct igb_ring *); |
| 97 | static void igb_clean_rx_ring(struct igb_ring *); |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 98 | static void igb_set_rx_mode(struct net_device *); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 99 | static void igb_update_phy_info(unsigned long); |
| 100 | static void igb_watchdog(unsigned long); |
| 101 | static void igb_watchdog_task(struct work_struct *); |
Alexander Duyck | b1a436c | 2009-10-27 15:54:43 +0000 | [diff] [blame] | 102 | static netdev_tx_t igb_xmit_frame_adv(struct sk_buff *skb, struct net_device *); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 103 | static struct net_device_stats *igb_get_stats(struct net_device *); |
| 104 | static int igb_change_mtu(struct net_device *, int); |
| 105 | static int igb_set_mac(struct net_device *, void *); |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 106 | static void igb_set_uta(struct igb_adapter *adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 107 | static irqreturn_t igb_intr(int irq, void *); |
| 108 | static irqreturn_t igb_intr_msi(int irq, void *); |
| 109 | static irqreturn_t igb_msix_other(int irq, void *); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 110 | static irqreturn_t igb_msix_ring(int irq, void *); |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 111 | #ifdef CONFIG_IGB_DCA |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 112 | static void igb_update_dca(struct igb_q_vector *); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 113 | static void igb_setup_dca(struct igb_adapter *); |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 114 | #endif /* CONFIG_IGB_DCA */ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 115 | static bool igb_clean_tx_irq(struct igb_q_vector *); |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 116 | static int igb_poll(struct napi_struct *, int); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 117 | static bool igb_clean_rx_irq_adv(struct igb_q_vector *, int *, int); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 118 | static int igb_ioctl(struct net_device *, struct ifreq *, int cmd); |
| 119 | static void igb_tx_timeout(struct net_device *); |
| 120 | static void igb_reset_task(struct work_struct *); |
| 121 | static void igb_vlan_rx_register(struct net_device *, struct vlan_group *); |
| 122 | static void igb_vlan_rx_add_vid(struct net_device *, u16); |
| 123 | static void igb_vlan_rx_kill_vid(struct net_device *, u16); |
| 124 | static void igb_restore_vlan(struct igb_adapter *); |
Alexander Duyck | 26ad917 | 2009-10-05 06:32:49 +0000 | [diff] [blame] | 125 | static void igb_rar_set_qsel(struct igb_adapter *, u8 *, u32 , u8); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 126 | static void igb_ping_all_vfs(struct igb_adapter *); |
| 127 | static void igb_msg_task(struct igb_adapter *); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 128 | static void igb_vmm_control(struct igb_adapter *); |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 129 | static int igb_set_vf_mac(struct igb_adapter *, int, unsigned char *); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 130 | static void igb_restore_vf_multicasts(struct igb_adapter *adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 131 | |
Eric Dumazet | c8159b2 | 2009-07-13 11:11:41 -0700 | [diff] [blame] | 132 | static inline void igb_set_vmolr(struct e1000_hw *hw, int vfn) |
| 133 | { |
| 134 | u32 reg_data; |
| 135 | |
| 136 | reg_data = rd32(E1000_VMOLR(vfn)); |
| 137 | reg_data |= E1000_VMOLR_BAM | /* Accept broadcast */ |
Eric Dumazet | c8159b2 | 2009-07-13 11:11:41 -0700 | [diff] [blame] | 138 | E1000_VMOLR_ROMPE | /* Accept packets matched in MTA */ |
| 139 | E1000_VMOLR_AUPE | /* Accept untagged packets */ |
| 140 | E1000_VMOLR_STRVLAN; /* Strip vlan tags */ |
| 141 | wr32(E1000_VMOLR(vfn), reg_data); |
| 142 | } |
| 143 | |
| 144 | static inline int igb_set_vf_rlpml(struct igb_adapter *adapter, int size, |
| 145 | int vfn) |
| 146 | { |
| 147 | struct e1000_hw *hw = &adapter->hw; |
| 148 | u32 vmolr; |
| 149 | |
Alexander Duyck | ae641bd | 2009-09-03 14:49:33 +0000 | [diff] [blame] | 150 | /* if it isn't the PF check to see if VFs are enabled and |
| 151 | * increase the size to support vlan tags */ |
| 152 | if (vfn < adapter->vfs_allocated_count && |
| 153 | adapter->vf_data[vfn].vlans_enabled) |
| 154 | size += VLAN_TAG_SIZE; |
| 155 | |
Eric Dumazet | c8159b2 | 2009-07-13 11:11:41 -0700 | [diff] [blame] | 156 | vmolr = rd32(E1000_VMOLR(vfn)); |
| 157 | vmolr &= ~E1000_VMOLR_RLPML_MASK; |
| 158 | vmolr |= size | E1000_VMOLR_LPE; |
| 159 | wr32(E1000_VMOLR(vfn), vmolr); |
| 160 | |
| 161 | return 0; |
| 162 | } |
| 163 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 164 | #ifdef CONFIG_PM |
Rafael J. Wysocki | 3fe7c4c | 2009-03-31 21:23:50 +0000 | [diff] [blame] | 165 | static int igb_suspend(struct pci_dev *, pm_message_t); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 166 | static int igb_resume(struct pci_dev *); |
| 167 | #endif |
| 168 | static void igb_shutdown(struct pci_dev *); |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 169 | #ifdef CONFIG_IGB_DCA |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 170 | static int igb_notify_dca(struct notifier_block *, unsigned long, void *); |
| 171 | static struct notifier_block dca_notifier = { |
| 172 | .notifier_call = igb_notify_dca, |
| 173 | .next = NULL, |
| 174 | .priority = 0 |
| 175 | }; |
| 176 | #endif |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 177 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 178 | /* for netdump / net console */ |
| 179 | static void igb_netpoll(struct net_device *); |
| 180 | #endif |
Alexander Duyck | 3768011 | 2009-02-19 20:40:30 -0800 | [diff] [blame] | 181 | #ifdef CONFIG_PCI_IOV |
Alexander Duyck | 2a3abf6 | 2009-04-07 14:37:52 +0000 | [diff] [blame] | 182 | static unsigned int max_vfs = 0; |
| 183 | module_param(max_vfs, uint, 0); |
| 184 | MODULE_PARM_DESC(max_vfs, "Maximum number of virtual functions to allocate " |
| 185 | "per physical function"); |
| 186 | #endif /* CONFIG_PCI_IOV */ |
| 187 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 188 | static pci_ers_result_t igb_io_error_detected(struct pci_dev *, |
| 189 | pci_channel_state_t); |
| 190 | static pci_ers_result_t igb_io_slot_reset(struct pci_dev *); |
| 191 | static void igb_io_resume(struct pci_dev *); |
| 192 | |
| 193 | static struct pci_error_handlers igb_err_handler = { |
| 194 | .error_detected = igb_io_error_detected, |
| 195 | .slot_reset = igb_io_slot_reset, |
| 196 | .resume = igb_io_resume, |
| 197 | }; |
| 198 | |
| 199 | |
| 200 | static struct pci_driver igb_driver = { |
| 201 | .name = igb_driver_name, |
| 202 | .id_table = igb_pci_tbl, |
| 203 | .probe = igb_probe, |
| 204 | .remove = __devexit_p(igb_remove), |
| 205 | #ifdef CONFIG_PM |
| 206 | /* Power Managment Hooks */ |
| 207 | .suspend = igb_suspend, |
| 208 | .resume = igb_resume, |
| 209 | #endif |
| 210 | .shutdown = igb_shutdown, |
| 211 | .err_handler = &igb_err_handler |
| 212 | }; |
| 213 | |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 214 | static int global_quad_port_a; /* global quad port a indication */ |
| 215 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 216 | MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>"); |
| 217 | MODULE_DESCRIPTION("Intel(R) Gigabit Ethernet Network Driver"); |
| 218 | MODULE_LICENSE("GPL"); |
| 219 | MODULE_VERSION(DRV_VERSION); |
| 220 | |
Patrick Ohly | 38c845c | 2009-02-12 05:03:41 +0000 | [diff] [blame] | 221 | /** |
Patrick Ohly | 38c845c | 2009-02-12 05:03:41 +0000 | [diff] [blame] | 222 | * igb_read_clock - read raw cycle counter (to be used by time counter) |
| 223 | */ |
| 224 | static cycle_t igb_read_clock(const struct cyclecounter *tc) |
| 225 | { |
| 226 | struct igb_adapter *adapter = |
| 227 | container_of(tc, struct igb_adapter, cycles); |
| 228 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 229 | u64 stamp = 0; |
| 230 | int shift = 0; |
Patrick Ohly | 38c845c | 2009-02-12 05:03:41 +0000 | [diff] [blame] | 231 | |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 232 | stamp |= (u64)rd32(E1000_SYSTIML) << shift; |
| 233 | stamp |= (u64)rd32(E1000_SYSTIMH) << (shift + 32); |
Patrick Ohly | 38c845c | 2009-02-12 05:03:41 +0000 | [diff] [blame] | 234 | return stamp; |
| 235 | } |
| 236 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 237 | #ifdef DEBUG |
| 238 | /** |
| 239 | * igb_get_hw_dev_name - return device name string |
| 240 | * used by hardware layer to print debugging information |
| 241 | **/ |
| 242 | char *igb_get_hw_dev_name(struct e1000_hw *hw) |
| 243 | { |
| 244 | struct igb_adapter *adapter = hw->back; |
| 245 | return adapter->netdev->name; |
| 246 | } |
Patrick Ohly | 38c845c | 2009-02-12 05:03:41 +0000 | [diff] [blame] | 247 | |
| 248 | /** |
| 249 | * igb_get_time_str - format current NIC and system time as string |
| 250 | */ |
| 251 | static char *igb_get_time_str(struct igb_adapter *adapter, |
| 252 | char buffer[160]) |
| 253 | { |
| 254 | cycle_t hw = adapter->cycles.read(&adapter->cycles); |
| 255 | struct timespec nic = ns_to_timespec(timecounter_read(&adapter->clock)); |
| 256 | struct timespec sys; |
| 257 | struct timespec delta; |
| 258 | getnstimeofday(&sys); |
| 259 | |
| 260 | delta = timespec_sub(nic, sys); |
| 261 | |
| 262 | sprintf(buffer, |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 263 | "HW %llu, NIC %ld.%09lus, SYS %ld.%09lus, NIC-SYS %lds + %09luns", |
| 264 | hw, |
Patrick Ohly | 38c845c | 2009-02-12 05:03:41 +0000 | [diff] [blame] | 265 | (long)nic.tv_sec, nic.tv_nsec, |
| 266 | (long)sys.tv_sec, sys.tv_nsec, |
| 267 | (long)delta.tv_sec, delta.tv_nsec); |
| 268 | |
| 269 | return buffer; |
| 270 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 271 | #endif |
| 272 | |
| 273 | /** |
| 274 | * igb_init_module - Driver Registration Routine |
| 275 | * |
| 276 | * igb_init_module is the first routine called when the driver is |
| 277 | * loaded. All it does is register with the PCI subsystem. |
| 278 | **/ |
| 279 | static int __init igb_init_module(void) |
| 280 | { |
| 281 | int ret; |
| 282 | printk(KERN_INFO "%s - version %s\n", |
| 283 | igb_driver_string, igb_driver_version); |
| 284 | |
| 285 | printk(KERN_INFO "%s\n", igb_copyright); |
| 286 | |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 287 | global_quad_port_a = 0; |
| 288 | |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 289 | #ifdef CONFIG_IGB_DCA |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 290 | dca_register_notify(&dca_notifier); |
| 291 | #endif |
Alexander Duyck | bbd98fe | 2009-01-31 00:52:30 -0800 | [diff] [blame] | 292 | |
| 293 | ret = pci_register_driver(&igb_driver); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 294 | return ret; |
| 295 | } |
| 296 | |
| 297 | module_init(igb_init_module); |
| 298 | |
| 299 | /** |
| 300 | * igb_exit_module - Driver Exit Cleanup Routine |
| 301 | * |
| 302 | * igb_exit_module is called just before the driver is removed |
| 303 | * from memory. |
| 304 | **/ |
| 305 | static void __exit igb_exit_module(void) |
| 306 | { |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 307 | #ifdef CONFIG_IGB_DCA |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 308 | dca_unregister_notify(&dca_notifier); |
| 309 | #endif |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 310 | pci_unregister_driver(&igb_driver); |
| 311 | } |
| 312 | |
| 313 | module_exit(igb_exit_module); |
| 314 | |
Alexander Duyck | 26bc19e | 2008-12-26 01:34:11 -0800 | [diff] [blame] | 315 | #define Q_IDX_82576(i) (((i & 0x1) << 3) + (i >> 1)) |
| 316 | /** |
| 317 | * igb_cache_ring_register - Descriptor ring to register mapping |
| 318 | * @adapter: board private structure to initialize |
| 319 | * |
| 320 | * Once we know the feature-set enabled for the device, we'll cache |
| 321 | * the register offset the descriptor ring is assigned to. |
| 322 | **/ |
| 323 | static void igb_cache_ring_register(struct igb_adapter *adapter) |
| 324 | { |
| 325 | int i; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 326 | u32 rbase_offset = adapter->vfs_allocated_count; |
Alexander Duyck | 26bc19e | 2008-12-26 01:34:11 -0800 | [diff] [blame] | 327 | |
| 328 | switch (adapter->hw.mac.type) { |
| 329 | case e1000_82576: |
| 330 | /* The queues are allocated for virtualization such that VF 0 |
| 331 | * is allocated queues 0 and 8, VF 1 queues 1 and 9, etc. |
| 332 | * In order to avoid collision we start at the first free queue |
| 333 | * and continue consuming queues in the same sequence |
| 334 | */ |
| 335 | for (i = 0; i < adapter->num_rx_queues; i++) |
Alexander Duyck | 1bfaf07 | 2009-02-19 20:39:23 -0800 | [diff] [blame] | 336 | adapter->rx_ring[i].reg_idx = rbase_offset + |
| 337 | Q_IDX_82576(i); |
Alexander Duyck | 26bc19e | 2008-12-26 01:34:11 -0800 | [diff] [blame] | 338 | for (i = 0; i < adapter->num_tx_queues; i++) |
Alexander Duyck | 1bfaf07 | 2009-02-19 20:39:23 -0800 | [diff] [blame] | 339 | adapter->tx_ring[i].reg_idx = rbase_offset + |
| 340 | Q_IDX_82576(i); |
Alexander Duyck | 26bc19e | 2008-12-26 01:34:11 -0800 | [diff] [blame] | 341 | break; |
| 342 | case e1000_82575: |
| 343 | default: |
| 344 | for (i = 0; i < adapter->num_rx_queues; i++) |
| 345 | adapter->rx_ring[i].reg_idx = i; |
| 346 | for (i = 0; i < adapter->num_tx_queues; i++) |
| 347 | adapter->tx_ring[i].reg_idx = i; |
| 348 | break; |
| 349 | } |
| 350 | } |
| 351 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 352 | static void igb_free_queues(struct igb_adapter *adapter) |
| 353 | { |
| 354 | kfree(adapter->tx_ring); |
| 355 | kfree(adapter->rx_ring); |
| 356 | |
| 357 | adapter->tx_ring = NULL; |
| 358 | adapter->rx_ring = NULL; |
| 359 | |
| 360 | adapter->num_rx_queues = 0; |
| 361 | adapter->num_tx_queues = 0; |
| 362 | } |
| 363 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 364 | /** |
| 365 | * igb_alloc_queues - Allocate memory for all rings |
| 366 | * @adapter: board private structure to initialize |
| 367 | * |
| 368 | * We allocate one ring per queue at run-time since we don't know the |
| 369 | * number of queues at compile-time. |
| 370 | **/ |
| 371 | static int igb_alloc_queues(struct igb_adapter *adapter) |
| 372 | { |
| 373 | int i; |
| 374 | |
| 375 | adapter->tx_ring = kcalloc(adapter->num_tx_queues, |
| 376 | sizeof(struct igb_ring), GFP_KERNEL); |
| 377 | if (!adapter->tx_ring) |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 378 | goto err; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 379 | |
| 380 | adapter->rx_ring = kcalloc(adapter->num_rx_queues, |
| 381 | sizeof(struct igb_ring), GFP_KERNEL); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 382 | if (!adapter->rx_ring) |
| 383 | goto err; |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 384 | |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 385 | for (i = 0; i < adapter->num_tx_queues; i++) { |
| 386 | struct igb_ring *ring = &(adapter->tx_ring[i]); |
Alexander Duyck | 68fd991 | 2008-11-20 00:48:10 -0800 | [diff] [blame] | 387 | ring->count = adapter->tx_ring_count; |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 388 | ring->queue_index = i; |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 389 | ring->pdev = adapter->pdev; |
Alexander Duyck | e694e96 | 2009-10-27 15:53:06 +0000 | [diff] [blame] | 390 | ring->netdev = adapter->netdev; |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 391 | /* For 82575, context index must be unique per ring. */ |
| 392 | if (adapter->hw.mac.type == e1000_82575) |
| 393 | ring->flags = IGB_RING_FLAG_TX_CTX_IDX; |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 394 | } |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 395 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 396 | for (i = 0; i < adapter->num_rx_queues; i++) { |
| 397 | struct igb_ring *ring = &(adapter->rx_ring[i]); |
Alexander Duyck | 68fd991 | 2008-11-20 00:48:10 -0800 | [diff] [blame] | 398 | ring->count = adapter->rx_ring_count; |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 399 | ring->queue_index = i; |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 400 | ring->pdev = adapter->pdev; |
Alexander Duyck | e694e96 | 2009-10-27 15:53:06 +0000 | [diff] [blame] | 401 | ring->netdev = adapter->netdev; |
Alexander Duyck | 4c84485 | 2009-10-27 15:52:07 +0000 | [diff] [blame] | 402 | ring->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE; |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 403 | ring->flags = IGB_RING_FLAG_RX_CSUM; /* enable rx checksum */ |
| 404 | /* set flag indicating ring supports SCTP checksum offload */ |
| 405 | if (adapter->hw.mac.type >= e1000_82576) |
| 406 | ring->flags |= IGB_RING_FLAG_RX_SCTP_CSUM; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 407 | } |
Alexander Duyck | 26bc19e | 2008-12-26 01:34:11 -0800 | [diff] [blame] | 408 | |
| 409 | igb_cache_ring_register(adapter); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 410 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 411 | return 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 412 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 413 | err: |
| 414 | igb_free_queues(adapter); |
Alexander Duyck | a88f10e | 2008-07-08 15:13:38 -0700 | [diff] [blame] | 415 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 416 | return -ENOMEM; |
Alexander Duyck | a88f10e | 2008-07-08 15:13:38 -0700 | [diff] [blame] | 417 | } |
| 418 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 419 | #define IGB_N0_QUEUE -1 |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 420 | 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] | 421 | { |
| 422 | u32 msixbm = 0; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 423 | struct igb_adapter *adapter = q_vector->adapter; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 424 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 425 | u32 ivar, index; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 426 | int rx_queue = IGB_N0_QUEUE; |
| 427 | int tx_queue = IGB_N0_QUEUE; |
| 428 | |
| 429 | if (q_vector->rx_ring) |
| 430 | rx_queue = q_vector->rx_ring->reg_idx; |
| 431 | if (q_vector->tx_ring) |
| 432 | tx_queue = q_vector->tx_ring->reg_idx; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 433 | |
| 434 | switch (hw->mac.type) { |
| 435 | case e1000_82575: |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 436 | /* The 82575 assigns vectors using a bitmask, which matches the |
| 437 | bitmask for the EICR/EIMS/EIMC registers. To assign one |
| 438 | or more queues to a vector, we write the appropriate bits |
| 439 | into the MSIXBM register for that vector. */ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 440 | if (rx_queue > IGB_N0_QUEUE) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 441 | msixbm = E1000_EICR_RX_QUEUE0 << rx_queue; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 442 | if (tx_queue > IGB_N0_QUEUE) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 443 | msixbm |= E1000_EICR_TX_QUEUE0 << tx_queue; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 444 | array_wr32(E1000_MSIXBM(0), msix_vector, msixbm); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 445 | q_vector->eims_value = msixbm; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 446 | break; |
| 447 | case e1000_82576: |
Alexander Duyck | 26bc19e | 2008-12-26 01:34:11 -0800 | [diff] [blame] | 448 | /* 82576 uses a table-based method for assigning vectors. |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 449 | Each queue has a single entry in the table to which we write |
| 450 | a vector number along with a "valid" bit. Sadly, the layout |
| 451 | of the table is somewhat counterintuitive. */ |
| 452 | if (rx_queue > IGB_N0_QUEUE) { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 453 | index = (rx_queue & 0x7); |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 454 | ivar = array_rd32(E1000_IVAR0, index); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 455 | if (rx_queue < 8) { |
Alexander Duyck | 26bc19e | 2008-12-26 01:34:11 -0800 | [diff] [blame] | 456 | /* vector goes into low byte of register */ |
| 457 | ivar = ivar & 0xFFFFFF00; |
| 458 | ivar |= msix_vector | E1000_IVAR_VALID; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 459 | } else { |
| 460 | /* vector goes into third byte of register */ |
| 461 | ivar = ivar & 0xFF00FFFF; |
| 462 | ivar |= (msix_vector | E1000_IVAR_VALID) << 16; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 463 | } |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 464 | array_wr32(E1000_IVAR0, index, ivar); |
| 465 | } |
| 466 | if (tx_queue > IGB_N0_QUEUE) { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 467 | index = (tx_queue & 0x7); |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 468 | ivar = array_rd32(E1000_IVAR0, index); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 469 | if (tx_queue < 8) { |
Alexander Duyck | 26bc19e | 2008-12-26 01:34:11 -0800 | [diff] [blame] | 470 | /* vector goes into second byte of register */ |
| 471 | ivar = ivar & 0xFFFF00FF; |
| 472 | ivar |= (msix_vector | E1000_IVAR_VALID) << 8; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 473 | } else { |
| 474 | /* vector goes into high byte of register */ |
| 475 | ivar = ivar & 0x00FFFFFF; |
| 476 | ivar |= (msix_vector | E1000_IVAR_VALID) << 24; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 477 | } |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 478 | array_wr32(E1000_IVAR0, index, ivar); |
| 479 | } |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 480 | q_vector->eims_value = 1 << msix_vector; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 481 | break; |
| 482 | default: |
| 483 | BUG(); |
| 484 | break; |
| 485 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 486 | } |
| 487 | |
| 488 | /** |
| 489 | * igb_configure_msix - Configure MSI-X hardware |
| 490 | * |
| 491 | * igb_configure_msix sets up the hardware to properly |
| 492 | * generate MSI-X interrupts. |
| 493 | **/ |
| 494 | static void igb_configure_msix(struct igb_adapter *adapter) |
| 495 | { |
| 496 | u32 tmp; |
| 497 | int i, vector = 0; |
| 498 | struct e1000_hw *hw = &adapter->hw; |
| 499 | |
| 500 | adapter->eims_enable_mask = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 501 | |
| 502 | /* set vector for other causes, i.e. link changes */ |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 503 | switch (hw->mac.type) { |
| 504 | case e1000_82575: |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 505 | tmp = rd32(E1000_CTRL_EXT); |
| 506 | /* enable MSI-X PBA support*/ |
| 507 | tmp |= E1000_CTRL_EXT_PBA_CLR; |
| 508 | |
| 509 | /* Auto-Mask interrupts upon ICR read. */ |
| 510 | tmp |= E1000_CTRL_EXT_EIAME; |
| 511 | tmp |= E1000_CTRL_EXT_IRCA; |
| 512 | |
| 513 | wr32(E1000_CTRL_EXT, tmp); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 514 | |
| 515 | /* enable msix_other interrupt */ |
| 516 | array_wr32(E1000_MSIXBM(0), vector++, |
| 517 | E1000_EIMS_OTHER); |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 518 | adapter->eims_other = E1000_EIMS_OTHER; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 519 | |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 520 | break; |
| 521 | |
| 522 | case e1000_82576: |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 523 | /* Turn on MSI-X capability first, or our settings |
| 524 | * won't stick. And it will take days to debug. */ |
| 525 | wr32(E1000_GPIE, E1000_GPIE_MSIX_MODE | |
| 526 | E1000_GPIE_PBA | E1000_GPIE_EIAME | |
| 527 | E1000_GPIE_NSICR); |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 528 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 529 | /* enable msix_other interrupt */ |
| 530 | adapter->eims_other = 1 << vector; |
| 531 | tmp = (vector++ | E1000_IVAR_VALID) << 8; |
| 532 | |
| 533 | wr32(E1000_IVAR_MISC, tmp); |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 534 | break; |
| 535 | default: |
| 536 | /* do nothing, since nothing else supports MSI-X */ |
| 537 | break; |
| 538 | } /* switch (hw->mac.type) */ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 539 | |
| 540 | adapter->eims_enable_mask |= adapter->eims_other; |
| 541 | |
| 542 | for (i = 0; i < adapter->num_q_vectors; i++) { |
| 543 | struct igb_q_vector *q_vector = adapter->q_vector[i]; |
| 544 | igb_assign_vector(q_vector, vector++); |
| 545 | adapter->eims_enable_mask |= q_vector->eims_value; |
| 546 | } |
| 547 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 548 | wrfl(); |
| 549 | } |
| 550 | |
| 551 | /** |
| 552 | * igb_request_msix - Initialize MSI-X interrupts |
| 553 | * |
| 554 | * igb_request_msix allocates MSI-X vectors and requests interrupts from the |
| 555 | * kernel. |
| 556 | **/ |
| 557 | static int igb_request_msix(struct igb_adapter *adapter) |
| 558 | { |
| 559 | struct net_device *netdev = adapter->netdev; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 560 | struct e1000_hw *hw = &adapter->hw; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 561 | int i, err = 0, vector = 0; |
| 562 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 563 | err = request_irq(adapter->msix_entries[vector].vector, |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 564 | &igb_msix_other, 0, netdev->name, adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 565 | if (err) |
| 566 | goto out; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 567 | vector++; |
| 568 | |
| 569 | for (i = 0; i < adapter->num_q_vectors; i++) { |
| 570 | struct igb_q_vector *q_vector = adapter->q_vector[i]; |
| 571 | |
| 572 | q_vector->itr_register = hw->hw_addr + E1000_EITR(vector); |
| 573 | |
| 574 | if (q_vector->rx_ring && q_vector->tx_ring) |
| 575 | sprintf(q_vector->name, "%s-TxRx-%u", netdev->name, |
| 576 | q_vector->rx_ring->queue_index); |
| 577 | else if (q_vector->tx_ring) |
| 578 | sprintf(q_vector->name, "%s-tx-%u", netdev->name, |
| 579 | q_vector->tx_ring->queue_index); |
| 580 | else if (q_vector->rx_ring) |
| 581 | sprintf(q_vector->name, "%s-rx-%u", netdev->name, |
| 582 | q_vector->rx_ring->queue_index); |
| 583 | else |
| 584 | sprintf(q_vector->name, "%s-unused", netdev->name); |
| 585 | |
| 586 | err = request_irq(adapter->msix_entries[vector].vector, |
| 587 | &igb_msix_ring, 0, q_vector->name, |
| 588 | q_vector); |
| 589 | if (err) |
| 590 | goto out; |
| 591 | vector++; |
| 592 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 593 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 594 | igb_configure_msix(adapter); |
| 595 | return 0; |
| 596 | out: |
| 597 | return err; |
| 598 | } |
| 599 | |
| 600 | static void igb_reset_interrupt_capability(struct igb_adapter *adapter) |
| 601 | { |
| 602 | if (adapter->msix_entries) { |
| 603 | pci_disable_msix(adapter->pdev); |
| 604 | kfree(adapter->msix_entries); |
| 605 | adapter->msix_entries = NULL; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 606 | } else if (adapter->flags & IGB_FLAG_HAS_MSI) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 607 | pci_disable_msi(adapter->pdev); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 608 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 609 | } |
| 610 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 611 | /** |
| 612 | * igb_free_q_vectors - Free memory allocated for interrupt vectors |
| 613 | * @adapter: board private structure to initialize |
| 614 | * |
| 615 | * This function frees the memory allocated to the q_vectors. In addition if |
| 616 | * NAPI is enabled it will delete any references to the NAPI struct prior |
| 617 | * to freeing the q_vector. |
| 618 | **/ |
| 619 | static void igb_free_q_vectors(struct igb_adapter *adapter) |
| 620 | { |
| 621 | int v_idx; |
| 622 | |
| 623 | for (v_idx = 0; v_idx < adapter->num_q_vectors; v_idx++) { |
| 624 | struct igb_q_vector *q_vector = adapter->q_vector[v_idx]; |
| 625 | adapter->q_vector[v_idx] = NULL; |
| 626 | netif_napi_del(&q_vector->napi); |
| 627 | kfree(q_vector); |
| 628 | } |
| 629 | adapter->num_q_vectors = 0; |
| 630 | } |
| 631 | |
| 632 | /** |
| 633 | * igb_clear_interrupt_scheme - reset the device to a state of no interrupts |
| 634 | * |
| 635 | * This function resets the device so that it has 0 rx queues, tx queues, and |
| 636 | * MSI-X interrupts allocated. |
| 637 | */ |
| 638 | static void igb_clear_interrupt_scheme(struct igb_adapter *adapter) |
| 639 | { |
| 640 | igb_free_queues(adapter); |
| 641 | igb_free_q_vectors(adapter); |
| 642 | igb_reset_interrupt_capability(adapter); |
| 643 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 644 | |
| 645 | /** |
| 646 | * igb_set_interrupt_capability - set MSI or MSI-X if supported |
| 647 | * |
| 648 | * Attempt to configure interrupts using the best available |
| 649 | * capabilities of the hardware and kernel. |
| 650 | **/ |
| 651 | static void igb_set_interrupt_capability(struct igb_adapter *adapter) |
| 652 | { |
| 653 | int err; |
| 654 | int numvecs, i; |
| 655 | |
Alexander Duyck | 83b7180 | 2009-02-06 23:15:45 +0000 | [diff] [blame] | 656 | /* Number of supported queues. */ |
Alexander Duyck | 83b7180 | 2009-02-06 23:15:45 +0000 | [diff] [blame] | 657 | adapter->num_rx_queues = min_t(u32, IGB_MAX_RX_QUEUES, num_online_cpus()); |
| 658 | adapter->num_tx_queues = min_t(u32, IGB_MAX_TX_QUEUES, num_online_cpus()); |
| 659 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 660 | /* start with one vector for every rx queue */ |
| 661 | numvecs = adapter->num_rx_queues; |
| 662 | |
| 663 | /* if tx handler is seperate add 1 for every tx queue */ |
| 664 | numvecs += adapter->num_tx_queues; |
| 665 | |
| 666 | /* store the number of vectors reserved for queues */ |
| 667 | adapter->num_q_vectors = numvecs; |
| 668 | |
| 669 | /* add 1 vector for link status interrupts */ |
| 670 | numvecs++; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 671 | adapter->msix_entries = kcalloc(numvecs, sizeof(struct msix_entry), |
| 672 | GFP_KERNEL); |
| 673 | if (!adapter->msix_entries) |
| 674 | goto msi_only; |
| 675 | |
| 676 | for (i = 0; i < numvecs; i++) |
| 677 | adapter->msix_entries[i].entry = i; |
| 678 | |
| 679 | err = pci_enable_msix(adapter->pdev, |
| 680 | adapter->msix_entries, |
| 681 | numvecs); |
| 682 | if (err == 0) |
Alexander Duyck | 34a20e8 | 2008-08-26 04:25:13 -0700 | [diff] [blame] | 683 | goto out; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 684 | |
| 685 | igb_reset_interrupt_capability(adapter); |
| 686 | |
| 687 | /* If we can't do MSI-X, try MSI */ |
| 688 | msi_only: |
Alexander Duyck | 2a3abf6 | 2009-04-07 14:37:52 +0000 | [diff] [blame] | 689 | #ifdef CONFIG_PCI_IOV |
| 690 | /* disable SR-IOV for non MSI-X configurations */ |
| 691 | if (adapter->vf_data) { |
| 692 | struct e1000_hw *hw = &adapter->hw; |
| 693 | /* disable iov and allow time for transactions to clear */ |
| 694 | pci_disable_sriov(adapter->pdev); |
| 695 | msleep(500); |
| 696 | |
| 697 | kfree(adapter->vf_data); |
| 698 | adapter->vf_data = NULL; |
| 699 | wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ); |
| 700 | msleep(100); |
| 701 | dev_info(&adapter->pdev->dev, "IOV Disabled\n"); |
| 702 | } |
| 703 | #endif |
Alexander Duyck | 4fc82ad | 2009-10-27 23:45:42 +0000 | [diff] [blame] | 704 | adapter->vfs_allocated_count = 0; |
| 705 | adapter->flags |= IGB_FLAG_QUEUE_PAIRS; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 706 | adapter->num_rx_queues = 1; |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 707 | adapter->num_tx_queues = 1; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 708 | adapter->num_q_vectors = 1; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 709 | if (!pci_enable_msi(adapter->pdev)) |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 710 | adapter->flags |= IGB_FLAG_HAS_MSI; |
Alexander Duyck | 34a20e8 | 2008-08-26 04:25:13 -0700 | [diff] [blame] | 711 | out: |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 712 | /* Notify the stack of the (possibly) reduced Tx Queue count. */ |
David S. Miller | fd2ea0a | 2008-07-17 01:56:23 -0700 | [diff] [blame] | 713 | adapter->netdev->real_num_tx_queues = adapter->num_tx_queues; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 714 | return; |
| 715 | } |
| 716 | |
| 717 | /** |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 718 | * igb_alloc_q_vectors - Allocate memory for interrupt vectors |
| 719 | * @adapter: board private structure to initialize |
| 720 | * |
| 721 | * We allocate one q_vector per queue interrupt. If allocation fails we |
| 722 | * return -ENOMEM. |
| 723 | **/ |
| 724 | static int igb_alloc_q_vectors(struct igb_adapter *adapter) |
| 725 | { |
| 726 | struct igb_q_vector *q_vector; |
| 727 | struct e1000_hw *hw = &adapter->hw; |
| 728 | int v_idx; |
| 729 | |
| 730 | for (v_idx = 0; v_idx < adapter->num_q_vectors; v_idx++) { |
| 731 | q_vector = kzalloc(sizeof(struct igb_q_vector), GFP_KERNEL); |
| 732 | if (!q_vector) |
| 733 | goto err_out; |
| 734 | q_vector->adapter = adapter; |
| 735 | q_vector->itr_shift = (hw->mac.type == e1000_82575) ? 16 : 0; |
| 736 | q_vector->itr_register = hw->hw_addr + E1000_EITR(0); |
| 737 | q_vector->itr_val = IGB_START_ITR; |
| 738 | q_vector->set_itr = 1; |
| 739 | netif_napi_add(adapter->netdev, &q_vector->napi, igb_poll, 64); |
| 740 | adapter->q_vector[v_idx] = q_vector; |
| 741 | } |
| 742 | return 0; |
| 743 | |
| 744 | err_out: |
| 745 | while (v_idx) { |
| 746 | v_idx--; |
| 747 | q_vector = adapter->q_vector[v_idx]; |
| 748 | netif_napi_del(&q_vector->napi); |
| 749 | kfree(q_vector); |
| 750 | adapter->q_vector[v_idx] = NULL; |
| 751 | } |
| 752 | return -ENOMEM; |
| 753 | } |
| 754 | |
| 755 | static void igb_map_rx_ring_to_vector(struct igb_adapter *adapter, |
| 756 | int ring_idx, int v_idx) |
| 757 | { |
| 758 | struct igb_q_vector *q_vector; |
| 759 | |
| 760 | q_vector = adapter->q_vector[v_idx]; |
| 761 | q_vector->rx_ring = &adapter->rx_ring[ring_idx]; |
| 762 | q_vector->rx_ring->q_vector = q_vector; |
Alexander Duyck | 4fc82ad | 2009-10-27 23:45:42 +0000 | [diff] [blame] | 763 | q_vector->itr_val = adapter->rx_itr_setting; |
| 764 | if (q_vector->itr_val && q_vector->itr_val <= 3) |
| 765 | q_vector->itr_val = IGB_START_ITR; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 766 | } |
| 767 | |
| 768 | static void igb_map_tx_ring_to_vector(struct igb_adapter *adapter, |
| 769 | int ring_idx, int v_idx) |
| 770 | { |
| 771 | struct igb_q_vector *q_vector; |
| 772 | |
| 773 | q_vector = adapter->q_vector[v_idx]; |
| 774 | q_vector->tx_ring = &adapter->tx_ring[ring_idx]; |
| 775 | q_vector->tx_ring->q_vector = q_vector; |
Alexander Duyck | 4fc82ad | 2009-10-27 23:45:42 +0000 | [diff] [blame] | 776 | q_vector->itr_val = adapter->tx_itr_setting; |
| 777 | if (q_vector->itr_val && q_vector->itr_val <= 3) |
| 778 | q_vector->itr_val = IGB_START_ITR; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 779 | } |
| 780 | |
| 781 | /** |
| 782 | * igb_map_ring_to_vector - maps allocated queues to vectors |
| 783 | * |
| 784 | * This function maps the recently allocated queues to vectors. |
| 785 | **/ |
| 786 | static int igb_map_ring_to_vector(struct igb_adapter *adapter) |
| 787 | { |
| 788 | int i; |
| 789 | int v_idx = 0; |
| 790 | |
| 791 | if ((adapter->num_q_vectors < adapter->num_rx_queues) || |
| 792 | (adapter->num_q_vectors < adapter->num_tx_queues)) |
| 793 | return -ENOMEM; |
| 794 | |
| 795 | if (adapter->num_q_vectors >= |
| 796 | (adapter->num_rx_queues + adapter->num_tx_queues)) { |
| 797 | for (i = 0; i < adapter->num_rx_queues; i++) |
| 798 | igb_map_rx_ring_to_vector(adapter, i, v_idx++); |
| 799 | for (i = 0; i < adapter->num_tx_queues; i++) |
| 800 | igb_map_tx_ring_to_vector(adapter, i, v_idx++); |
| 801 | } else { |
| 802 | for (i = 0; i < adapter->num_rx_queues; i++) { |
| 803 | if (i < adapter->num_tx_queues) |
| 804 | igb_map_tx_ring_to_vector(adapter, i, v_idx); |
| 805 | igb_map_rx_ring_to_vector(adapter, i, v_idx++); |
| 806 | } |
| 807 | for (; i < adapter->num_tx_queues; i++) |
| 808 | igb_map_tx_ring_to_vector(adapter, i, v_idx++); |
| 809 | } |
| 810 | return 0; |
| 811 | } |
| 812 | |
| 813 | /** |
| 814 | * igb_init_interrupt_scheme - initialize interrupts, allocate queues/vectors |
| 815 | * |
| 816 | * This function initializes the interrupts and allocates all of the queues. |
| 817 | **/ |
| 818 | static int igb_init_interrupt_scheme(struct igb_adapter *adapter) |
| 819 | { |
| 820 | struct pci_dev *pdev = adapter->pdev; |
| 821 | int err; |
| 822 | |
| 823 | igb_set_interrupt_capability(adapter); |
| 824 | |
| 825 | err = igb_alloc_q_vectors(adapter); |
| 826 | if (err) { |
| 827 | dev_err(&pdev->dev, "Unable to allocate memory for vectors\n"); |
| 828 | goto err_alloc_q_vectors; |
| 829 | } |
| 830 | |
| 831 | err = igb_alloc_queues(adapter); |
| 832 | if (err) { |
| 833 | dev_err(&pdev->dev, "Unable to allocate memory for queues\n"); |
| 834 | goto err_alloc_queues; |
| 835 | } |
| 836 | |
| 837 | err = igb_map_ring_to_vector(adapter); |
| 838 | if (err) { |
| 839 | dev_err(&pdev->dev, "Invalid q_vector to ring mapping\n"); |
| 840 | goto err_map_queues; |
| 841 | } |
| 842 | |
| 843 | |
| 844 | return 0; |
| 845 | err_map_queues: |
| 846 | igb_free_queues(adapter); |
| 847 | err_alloc_queues: |
| 848 | igb_free_q_vectors(adapter); |
| 849 | err_alloc_q_vectors: |
| 850 | igb_reset_interrupt_capability(adapter); |
| 851 | return err; |
| 852 | } |
| 853 | |
| 854 | /** |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 855 | * igb_request_irq - initialize interrupts |
| 856 | * |
| 857 | * Attempts to configure interrupts using the best available |
| 858 | * capabilities of the hardware and kernel. |
| 859 | **/ |
| 860 | static int igb_request_irq(struct igb_adapter *adapter) |
| 861 | { |
| 862 | struct net_device *netdev = adapter->netdev; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 863 | struct pci_dev *pdev = adapter->pdev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 864 | struct e1000_hw *hw = &adapter->hw; |
| 865 | int err = 0; |
| 866 | |
| 867 | if (adapter->msix_entries) { |
| 868 | err = igb_request_msix(adapter); |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 869 | if (!err) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 870 | goto request_done; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 871 | /* fall back to MSI */ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 872 | igb_clear_interrupt_scheme(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 873 | if (!pci_enable_msi(adapter->pdev)) |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 874 | adapter->flags |= IGB_FLAG_HAS_MSI; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 875 | igb_free_all_tx_resources(adapter); |
| 876 | igb_free_all_rx_resources(adapter); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 877 | adapter->num_tx_queues = 1; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 878 | adapter->num_rx_queues = 1; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 879 | adapter->num_q_vectors = 1; |
| 880 | err = igb_alloc_q_vectors(adapter); |
| 881 | if (err) { |
| 882 | dev_err(&pdev->dev, |
| 883 | "Unable to allocate memory for vectors\n"); |
| 884 | goto request_done; |
| 885 | } |
| 886 | err = igb_alloc_queues(adapter); |
| 887 | if (err) { |
| 888 | dev_err(&pdev->dev, |
| 889 | "Unable to allocate memory for queues\n"); |
| 890 | igb_free_q_vectors(adapter); |
| 891 | goto request_done; |
| 892 | } |
| 893 | igb_setup_all_tx_resources(adapter); |
| 894 | igb_setup_all_rx_resources(adapter); |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 895 | } else { |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 896 | switch (hw->mac.type) { |
| 897 | case e1000_82575: |
| 898 | wr32(E1000_MSIXBM(0), |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 899 | (E1000_EICR_RX_QUEUE0 | |
| 900 | E1000_EICR_TX_QUEUE0 | |
| 901 | E1000_EIMS_OTHER)); |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 902 | break; |
| 903 | case e1000_82576: |
| 904 | wr32(E1000_IVAR0, E1000_IVAR_VALID); |
| 905 | break; |
| 906 | default: |
| 907 | break; |
| 908 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 909 | } |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 910 | |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 911 | if (adapter->flags & IGB_FLAG_HAS_MSI) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 912 | err = request_irq(adapter->pdev->irq, &igb_intr_msi, 0, |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 913 | netdev->name, adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 914 | if (!err) |
| 915 | goto request_done; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 916 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 917 | /* fall back to legacy interrupts */ |
| 918 | igb_reset_interrupt_capability(adapter); |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 919 | adapter->flags &= ~IGB_FLAG_HAS_MSI; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 920 | } |
| 921 | |
| 922 | err = request_irq(adapter->pdev->irq, &igb_intr, IRQF_SHARED, |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 923 | netdev->name, adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 924 | |
Andy Gospodarek | 6cb5e57 | 2008-02-15 14:05:25 -0800 | [diff] [blame] | 925 | if (err) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 926 | dev_err(&adapter->pdev->dev, "Error %d getting interrupt\n", |
| 927 | err); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 928 | |
| 929 | request_done: |
| 930 | return err; |
| 931 | } |
| 932 | |
| 933 | static void igb_free_irq(struct igb_adapter *adapter) |
| 934 | { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 935 | if (adapter->msix_entries) { |
| 936 | int vector = 0, i; |
| 937 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 938 | free_irq(adapter->msix_entries[vector++].vector, adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 939 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 940 | for (i = 0; i < adapter->num_q_vectors; i++) { |
| 941 | struct igb_q_vector *q_vector = adapter->q_vector[i]; |
| 942 | free_irq(adapter->msix_entries[vector++].vector, |
| 943 | q_vector); |
| 944 | } |
| 945 | } else { |
| 946 | free_irq(adapter->pdev->irq, adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 947 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 948 | } |
| 949 | |
| 950 | /** |
| 951 | * igb_irq_disable - Mask off interrupt generation on the NIC |
| 952 | * @adapter: board private structure |
| 953 | **/ |
| 954 | static void igb_irq_disable(struct igb_adapter *adapter) |
| 955 | { |
| 956 | struct e1000_hw *hw = &adapter->hw; |
| 957 | |
| 958 | if (adapter->msix_entries) { |
Alexander Duyck | 2dfd121 | 2009-09-03 14:49:15 +0000 | [diff] [blame] | 959 | u32 regval = rd32(E1000_EIAM); |
| 960 | wr32(E1000_EIAM, regval & ~adapter->eims_enable_mask); |
| 961 | wr32(E1000_EIMC, adapter->eims_enable_mask); |
| 962 | regval = rd32(E1000_EIAC); |
| 963 | wr32(E1000_EIAC, regval & ~adapter->eims_enable_mask); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 964 | } |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 965 | |
| 966 | wr32(E1000_IAM, 0); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 967 | wr32(E1000_IMC, ~0); |
| 968 | wrfl(); |
| 969 | synchronize_irq(adapter->pdev->irq); |
| 970 | } |
| 971 | |
| 972 | /** |
| 973 | * igb_irq_enable - Enable default interrupt generation settings |
| 974 | * @adapter: board private structure |
| 975 | **/ |
| 976 | static void igb_irq_enable(struct igb_adapter *adapter) |
| 977 | { |
| 978 | struct e1000_hw *hw = &adapter->hw; |
| 979 | |
| 980 | if (adapter->msix_entries) { |
Alexander Duyck | 2dfd121 | 2009-09-03 14:49:15 +0000 | [diff] [blame] | 981 | u32 regval = rd32(E1000_EIAC); |
| 982 | wr32(E1000_EIAC, regval | adapter->eims_enable_mask); |
| 983 | regval = rd32(E1000_EIAM); |
| 984 | wr32(E1000_EIAM, regval | adapter->eims_enable_mask); |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 985 | wr32(E1000_EIMS, adapter->eims_enable_mask); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 986 | if (adapter->vfs_allocated_count) |
| 987 | wr32(E1000_MBVFIMR, 0xFF); |
| 988 | wr32(E1000_IMS, (E1000_IMS_LSC | E1000_IMS_VMMB | |
| 989 | E1000_IMS_DOUTSYNC)); |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 990 | } else { |
| 991 | wr32(E1000_IMS, IMS_ENABLE_MASK); |
| 992 | wr32(E1000_IAM, IMS_ENABLE_MASK); |
| 993 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 994 | } |
| 995 | |
| 996 | static void igb_update_mng_vlan(struct igb_adapter *adapter) |
| 997 | { |
| 998 | struct net_device *netdev = adapter->netdev; |
| 999 | u16 vid = adapter->hw.mng_cookie.vlan_id; |
| 1000 | u16 old_vid = adapter->mng_vlan_id; |
| 1001 | if (adapter->vlgrp) { |
| 1002 | if (!vlan_group_get_device(adapter->vlgrp, vid)) { |
| 1003 | if (adapter->hw.mng_cookie.status & |
| 1004 | E1000_MNG_DHCP_COOKIE_STATUS_VLAN) { |
| 1005 | igb_vlan_rx_add_vid(netdev, vid); |
| 1006 | adapter->mng_vlan_id = vid; |
| 1007 | } else |
| 1008 | adapter->mng_vlan_id = IGB_MNG_VLAN_NONE; |
| 1009 | |
| 1010 | if ((old_vid != (u16)IGB_MNG_VLAN_NONE) && |
| 1011 | (vid != old_vid) && |
| 1012 | !vlan_group_get_device(adapter->vlgrp, old_vid)) |
| 1013 | igb_vlan_rx_kill_vid(netdev, old_vid); |
| 1014 | } else |
| 1015 | adapter->mng_vlan_id = vid; |
| 1016 | } |
| 1017 | } |
| 1018 | |
| 1019 | /** |
| 1020 | * igb_release_hw_control - release control of the h/w to f/w |
| 1021 | * @adapter: address of board private structure |
| 1022 | * |
| 1023 | * igb_release_hw_control resets CTRL_EXT:DRV_LOAD bit. |
| 1024 | * For ASF and Pass Through versions of f/w this means that the |
| 1025 | * driver is no longer loaded. |
| 1026 | * |
| 1027 | **/ |
| 1028 | static void igb_release_hw_control(struct igb_adapter *adapter) |
| 1029 | { |
| 1030 | struct e1000_hw *hw = &adapter->hw; |
| 1031 | u32 ctrl_ext; |
| 1032 | |
| 1033 | /* Let firmware take over control of h/w */ |
| 1034 | ctrl_ext = rd32(E1000_CTRL_EXT); |
| 1035 | wr32(E1000_CTRL_EXT, |
| 1036 | ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD); |
| 1037 | } |
| 1038 | |
| 1039 | |
| 1040 | /** |
| 1041 | * igb_get_hw_control - get control of the h/w from f/w |
| 1042 | * @adapter: address of board private structure |
| 1043 | * |
| 1044 | * igb_get_hw_control sets CTRL_EXT:DRV_LOAD bit. |
| 1045 | * For ASF and Pass Through versions of f/w this means that |
| 1046 | * the driver is loaded. |
| 1047 | * |
| 1048 | **/ |
| 1049 | static void igb_get_hw_control(struct igb_adapter *adapter) |
| 1050 | { |
| 1051 | struct e1000_hw *hw = &adapter->hw; |
| 1052 | u32 ctrl_ext; |
| 1053 | |
| 1054 | /* Let firmware know the driver has taken over */ |
| 1055 | ctrl_ext = rd32(E1000_CTRL_EXT); |
| 1056 | wr32(E1000_CTRL_EXT, |
| 1057 | ctrl_ext | E1000_CTRL_EXT_DRV_LOAD); |
| 1058 | } |
| 1059 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1060 | /** |
| 1061 | * igb_configure - configure the hardware for RX and TX |
| 1062 | * @adapter: private board structure |
| 1063 | **/ |
| 1064 | static void igb_configure(struct igb_adapter *adapter) |
| 1065 | { |
| 1066 | struct net_device *netdev = adapter->netdev; |
| 1067 | int i; |
| 1068 | |
| 1069 | igb_get_hw_control(adapter); |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 1070 | igb_set_rx_mode(netdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1071 | |
| 1072 | igb_restore_vlan(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1073 | |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 1074 | igb_setup_tctl(adapter); |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 1075 | igb_setup_mrqc(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1076 | igb_setup_rctl(adapter); |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 1077 | |
| 1078 | igb_configure_tx(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1079 | igb_configure_rx(adapter); |
Alexander Duyck | 662d720 | 2008-06-27 11:00:29 -0700 | [diff] [blame] | 1080 | |
| 1081 | igb_rx_fifo_flush_82575(&adapter->hw); |
| 1082 | |
Alexander Duyck | c493ea4 | 2009-03-20 00:16:50 +0000 | [diff] [blame] | 1083 | /* call igb_desc_unused which always leaves |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1084 | * at least 1 descriptor unused to make sure |
| 1085 | * next_to_use != next_to_clean */ |
| 1086 | for (i = 0; i < adapter->num_rx_queues; i++) { |
| 1087 | struct igb_ring *ring = &adapter->rx_ring[i]; |
Alexander Duyck | c493ea4 | 2009-03-20 00:16:50 +0000 | [diff] [blame] | 1088 | igb_alloc_rx_buffers_adv(ring, igb_desc_unused(ring)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1089 | } |
| 1090 | |
| 1091 | |
| 1092 | adapter->tx_queue_len = netdev->tx_queue_len; |
| 1093 | } |
| 1094 | |
| 1095 | |
| 1096 | /** |
| 1097 | * igb_up - Open the interface and prepare it to handle traffic |
| 1098 | * @adapter: board private structure |
| 1099 | **/ |
| 1100 | |
| 1101 | int igb_up(struct igb_adapter *adapter) |
| 1102 | { |
| 1103 | struct e1000_hw *hw = &adapter->hw; |
| 1104 | int i; |
| 1105 | |
| 1106 | /* hardware has been reset, we need to reload some things */ |
| 1107 | igb_configure(adapter); |
| 1108 | |
| 1109 | clear_bit(__IGB_DOWN, &adapter->state); |
| 1110 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1111 | for (i = 0; i < adapter->num_q_vectors; i++) { |
| 1112 | struct igb_q_vector *q_vector = adapter->q_vector[i]; |
| 1113 | napi_enable(&q_vector->napi); |
| 1114 | } |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 1115 | if (adapter->msix_entries) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1116 | igb_configure_msix(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1117 | |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 1118 | igb_set_vmolr(hw, adapter->vfs_allocated_count); |
| 1119 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1120 | /* Clear any pending interrupts. */ |
| 1121 | rd32(E1000_ICR); |
| 1122 | igb_irq_enable(adapter); |
| 1123 | |
Alexander Duyck | d496030 | 2009-10-27 15:53:45 +0000 | [diff] [blame] | 1124 | /* notify VFs that reset has been completed */ |
| 1125 | if (adapter->vfs_allocated_count) { |
| 1126 | u32 reg_data = rd32(E1000_CTRL_EXT); |
| 1127 | reg_data |= E1000_CTRL_EXT_PFRSTD; |
| 1128 | wr32(E1000_CTRL_EXT, reg_data); |
| 1129 | } |
| 1130 | |
Jesse Brandeburg | 4cb9be7 | 2009-04-21 18:42:05 +0000 | [diff] [blame] | 1131 | netif_tx_start_all_queues(adapter->netdev); |
| 1132 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1133 | /* Fire a link change interrupt to start the watchdog. */ |
| 1134 | wr32(E1000_ICS, E1000_ICS_LSC); |
| 1135 | return 0; |
| 1136 | } |
| 1137 | |
| 1138 | void igb_down(struct igb_adapter *adapter) |
| 1139 | { |
| 1140 | struct e1000_hw *hw = &adapter->hw; |
| 1141 | struct net_device *netdev = adapter->netdev; |
| 1142 | u32 tctl, rctl; |
| 1143 | int i; |
| 1144 | |
| 1145 | /* signal that we're down so the interrupt handler does not |
| 1146 | * reschedule our watchdog timer */ |
| 1147 | set_bit(__IGB_DOWN, &adapter->state); |
| 1148 | |
| 1149 | /* disable receives in the hardware */ |
| 1150 | rctl = rd32(E1000_RCTL); |
| 1151 | wr32(E1000_RCTL, rctl & ~E1000_RCTL_EN); |
| 1152 | /* flush and sleep below */ |
| 1153 | |
David S. Miller | fd2ea0a | 2008-07-17 01:56:23 -0700 | [diff] [blame] | 1154 | netif_tx_stop_all_queues(netdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1155 | |
| 1156 | /* disable transmits in the hardware */ |
| 1157 | tctl = rd32(E1000_TCTL); |
| 1158 | tctl &= ~E1000_TCTL_EN; |
| 1159 | wr32(E1000_TCTL, tctl); |
| 1160 | /* flush both disables and wait for them to finish */ |
| 1161 | wrfl(); |
| 1162 | msleep(10); |
| 1163 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1164 | for (i = 0; i < adapter->num_q_vectors; i++) { |
| 1165 | struct igb_q_vector *q_vector = adapter->q_vector[i]; |
| 1166 | napi_disable(&q_vector->napi); |
| 1167 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1168 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1169 | igb_irq_disable(adapter); |
| 1170 | |
| 1171 | del_timer_sync(&adapter->watchdog_timer); |
| 1172 | del_timer_sync(&adapter->phy_info_timer); |
| 1173 | |
| 1174 | netdev->tx_queue_len = adapter->tx_queue_len; |
| 1175 | netif_carrier_off(netdev); |
Alexander Duyck | 04fe635 | 2009-02-06 23:22:32 +0000 | [diff] [blame] | 1176 | |
| 1177 | /* record the stats before reset*/ |
| 1178 | igb_update_stats(adapter); |
| 1179 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1180 | adapter->link_speed = 0; |
| 1181 | adapter->link_duplex = 0; |
| 1182 | |
Jeff Kirsher | 3023682 | 2008-06-24 17:01:15 -0700 | [diff] [blame] | 1183 | if (!pci_channel_offline(adapter->pdev)) |
| 1184 | igb_reset(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1185 | igb_clean_all_tx_rings(adapter); |
| 1186 | igb_clean_all_rx_rings(adapter); |
Alexander Duyck | 7e0e99e | 2009-05-21 13:06:56 +0000 | [diff] [blame] | 1187 | #ifdef CONFIG_IGB_DCA |
| 1188 | |
| 1189 | /* since we reset the hardware DCA settings were cleared */ |
| 1190 | igb_setup_dca(adapter); |
| 1191 | #endif |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1192 | } |
| 1193 | |
| 1194 | void igb_reinit_locked(struct igb_adapter *adapter) |
| 1195 | { |
| 1196 | WARN_ON(in_interrupt()); |
| 1197 | while (test_and_set_bit(__IGB_RESETTING, &adapter->state)) |
| 1198 | msleep(1); |
| 1199 | igb_down(adapter); |
| 1200 | igb_up(adapter); |
| 1201 | clear_bit(__IGB_RESETTING, &adapter->state); |
| 1202 | } |
| 1203 | |
| 1204 | void igb_reset(struct igb_adapter *adapter) |
| 1205 | { |
| 1206 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 1207 | struct e1000_mac_info *mac = &hw->mac; |
| 1208 | struct e1000_fc_info *fc = &hw->fc; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1209 | u32 pba = 0, tx_space, min_tx_space, min_rx_space; |
| 1210 | u16 hwm; |
| 1211 | |
| 1212 | /* Repartition Pba for greater than 9k mtu |
| 1213 | * To take effect CTRL.RST is required. |
| 1214 | */ |
Alexander Duyck | fa4dfae | 2009-02-06 23:21:31 +0000 | [diff] [blame] | 1215 | switch (mac->type) { |
| 1216 | case e1000_82576: |
Alexander Duyck | d249be5 | 2009-10-27 23:46:38 +0000 | [diff] [blame] | 1217 | pba = rd32(E1000_RXPBS); |
| 1218 | pba &= E1000_RXPBS_SIZE_MASK_82576; |
Alexander Duyck | fa4dfae | 2009-02-06 23:21:31 +0000 | [diff] [blame] | 1219 | break; |
| 1220 | case e1000_82575: |
| 1221 | default: |
| 1222 | pba = E1000_PBA_34K; |
| 1223 | break; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 1224 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1225 | |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 1226 | if ((adapter->max_frame_size > ETH_FRAME_LEN + ETH_FCS_LEN) && |
| 1227 | (mac->type < e1000_82576)) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1228 | /* adjust PBA for jumbo frames */ |
| 1229 | wr32(E1000_PBA, pba); |
| 1230 | |
| 1231 | /* To maintain wire speed transmits, the Tx FIFO should be |
| 1232 | * large enough to accommodate two full transmit packets, |
| 1233 | * rounded up to the next 1KB and expressed in KB. Likewise, |
| 1234 | * the Rx FIFO should be large enough to accommodate at least |
| 1235 | * one full receive packet and is similarly rounded up and |
| 1236 | * expressed in KB. */ |
| 1237 | pba = rd32(E1000_PBA); |
| 1238 | /* upper 16 bits has Tx packet buffer allocation size in KB */ |
| 1239 | tx_space = pba >> 16; |
| 1240 | /* lower 16 bits has Rx packet buffer allocation size in KB */ |
| 1241 | pba &= 0xffff; |
| 1242 | /* the tx fifo also stores 16 bytes of information about the tx |
| 1243 | * but don't include ethernet FCS because hardware appends it */ |
| 1244 | min_tx_space = (adapter->max_frame_size + |
Alexander Duyck | 85e8d00 | 2009-02-16 00:00:20 -0800 | [diff] [blame] | 1245 | sizeof(union e1000_adv_tx_desc) - |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1246 | ETH_FCS_LEN) * 2; |
| 1247 | min_tx_space = ALIGN(min_tx_space, 1024); |
| 1248 | min_tx_space >>= 10; |
| 1249 | /* software strips receive CRC, so leave room for it */ |
| 1250 | min_rx_space = adapter->max_frame_size; |
| 1251 | min_rx_space = ALIGN(min_rx_space, 1024); |
| 1252 | min_rx_space >>= 10; |
| 1253 | |
| 1254 | /* If current Tx allocation is less than the min Tx FIFO size, |
| 1255 | * and the min Tx FIFO size is less than the current Rx FIFO |
| 1256 | * allocation, take space away from current Rx allocation */ |
| 1257 | if (tx_space < min_tx_space && |
| 1258 | ((min_tx_space - tx_space) < pba)) { |
| 1259 | pba = pba - (min_tx_space - tx_space); |
| 1260 | |
| 1261 | /* if short on rx space, rx wins and must trump tx |
| 1262 | * adjustment */ |
| 1263 | if (pba < min_rx_space) |
| 1264 | pba = min_rx_space; |
| 1265 | } |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 1266 | wr32(E1000_PBA, pba); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1267 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1268 | |
| 1269 | /* flow control settings */ |
| 1270 | /* The high water mark must be low enough to fit one full frame |
| 1271 | * (or the size used for early receive) above it in the Rx FIFO. |
| 1272 | * Set it to the lower of: |
| 1273 | * - 90% of the Rx FIFO size, or |
| 1274 | * - the full Rx FIFO size minus one full frame */ |
| 1275 | hwm = min(((pba << 10) * 9 / 10), |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 1276 | ((pba << 10) - 2 * adapter->max_frame_size)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1277 | |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 1278 | if (mac->type < e1000_82576) { |
| 1279 | fc->high_water = hwm & 0xFFF8; /* 8-byte granularity */ |
| 1280 | fc->low_water = fc->high_water - 8; |
| 1281 | } else { |
| 1282 | fc->high_water = hwm & 0xFFF0; /* 16-byte granularity */ |
| 1283 | fc->low_water = fc->high_water - 16; |
| 1284 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1285 | fc->pause_time = 0xFFFF; |
| 1286 | fc->send_xon = 1; |
Alexander Duyck | 0cce119 | 2009-07-23 18:10:24 +0000 | [diff] [blame] | 1287 | fc->current_mode = fc->requested_mode; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1288 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 1289 | /* disable receive for all VFs and wait one second */ |
| 1290 | if (adapter->vfs_allocated_count) { |
| 1291 | int i; |
| 1292 | for (i = 0 ; i < adapter->vfs_allocated_count; i++) |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 1293 | adapter->vf_data[i].flags = 0; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 1294 | |
| 1295 | /* 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^] | 1296 | igb_ping_all_vfs(adapter); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 1297 | |
| 1298 | /* disable transmits and receives */ |
| 1299 | wr32(E1000_VFRE, 0); |
| 1300 | wr32(E1000_VFTE, 0); |
| 1301 | } |
| 1302 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1303 | /* Allow time for pending master requests to run */ |
| 1304 | adapter->hw.mac.ops.reset_hw(&adapter->hw); |
| 1305 | wr32(E1000_WUC, 0); |
| 1306 | |
| 1307 | if (adapter->hw.mac.ops.init_hw(&adapter->hw)) |
| 1308 | dev_err(&adapter->pdev->dev, "Hardware Error\n"); |
| 1309 | |
| 1310 | igb_update_mng_vlan(adapter); |
| 1311 | |
| 1312 | /* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */ |
| 1313 | wr32(E1000_VET, ETHERNET_IEEE_VLAN_TYPE); |
| 1314 | |
| 1315 | igb_reset_adaptive(&adapter->hw); |
Alexander Duyck | f5f4cf0 | 2008-11-21 21:30:24 -0800 | [diff] [blame] | 1316 | igb_get_phy_info(&adapter->hw); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1317 | } |
| 1318 | |
Stephen Hemminger | 2e5c692 | 2008-11-19 22:20:44 -0800 | [diff] [blame] | 1319 | static const struct net_device_ops igb_netdev_ops = { |
| 1320 | .ndo_open = igb_open, |
| 1321 | .ndo_stop = igb_close, |
Stephen Hemminger | 0082982 | 2008-11-20 20:14:53 -0800 | [diff] [blame] | 1322 | .ndo_start_xmit = igb_xmit_frame_adv, |
Stephen Hemminger | 2e5c692 | 2008-11-19 22:20:44 -0800 | [diff] [blame] | 1323 | .ndo_get_stats = igb_get_stats, |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 1324 | .ndo_set_rx_mode = igb_set_rx_mode, |
| 1325 | .ndo_set_multicast_list = igb_set_rx_mode, |
Stephen Hemminger | 2e5c692 | 2008-11-19 22:20:44 -0800 | [diff] [blame] | 1326 | .ndo_set_mac_address = igb_set_mac, |
| 1327 | .ndo_change_mtu = igb_change_mtu, |
| 1328 | .ndo_do_ioctl = igb_ioctl, |
| 1329 | .ndo_tx_timeout = igb_tx_timeout, |
| 1330 | .ndo_validate_addr = eth_validate_addr, |
| 1331 | .ndo_vlan_rx_register = igb_vlan_rx_register, |
| 1332 | .ndo_vlan_rx_add_vid = igb_vlan_rx_add_vid, |
| 1333 | .ndo_vlan_rx_kill_vid = igb_vlan_rx_kill_vid, |
| 1334 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 1335 | .ndo_poll_controller = igb_netpoll, |
| 1336 | #endif |
| 1337 | }; |
| 1338 | |
Taku Izumi | 42bfd33a | 2008-06-20 12:10:30 +0900 | [diff] [blame] | 1339 | /** |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1340 | * igb_probe - Device Initialization Routine |
| 1341 | * @pdev: PCI device information struct |
| 1342 | * @ent: entry in igb_pci_tbl |
| 1343 | * |
| 1344 | * Returns 0 on success, negative on failure |
| 1345 | * |
| 1346 | * igb_probe initializes an adapter identified by a pci_dev structure. |
| 1347 | * The OS initialization, configuring of the adapter private structure, |
| 1348 | * and a hardware reset occur. |
| 1349 | **/ |
| 1350 | static int __devinit igb_probe(struct pci_dev *pdev, |
| 1351 | const struct pci_device_id *ent) |
| 1352 | { |
| 1353 | struct net_device *netdev; |
| 1354 | struct igb_adapter *adapter; |
| 1355 | struct e1000_hw *hw; |
| 1356 | const struct e1000_info *ei = igb_info_tbl[ent->driver_data]; |
| 1357 | unsigned long mmio_start, mmio_len; |
David S. Miller | 2d6a5e9 | 2009-03-17 15:01:30 -0700 | [diff] [blame] | 1358 | int err, pci_using_dac; |
Alexander Duyck | 682337f | 2009-03-14 22:26:40 -0700 | [diff] [blame] | 1359 | u16 eeprom_data = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1360 | u16 eeprom_apme_mask = IGB_EEPROM_APME; |
| 1361 | u32 part_num; |
| 1362 | |
Alexander Duyck | aed5dec | 2009-02-06 23:16:04 +0000 | [diff] [blame] | 1363 | err = pci_enable_device_mem(pdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1364 | if (err) |
| 1365 | return err; |
| 1366 | |
| 1367 | pci_using_dac = 0; |
Yang Hongyang | 6a35528 | 2009-04-06 19:01:13 -0700 | [diff] [blame] | 1368 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1369 | if (!err) { |
Yang Hongyang | 6a35528 | 2009-04-06 19:01:13 -0700 | [diff] [blame] | 1370 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1371 | if (!err) |
| 1372 | pci_using_dac = 1; |
| 1373 | } else { |
Yang Hongyang | 284901a | 2009-04-06 19:01:15 -0700 | [diff] [blame] | 1374 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1375 | if (err) { |
Yang Hongyang | 284901a | 2009-04-06 19:01:15 -0700 | [diff] [blame] | 1376 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1377 | if (err) { |
| 1378 | dev_err(&pdev->dev, "No usable DMA " |
| 1379 | "configuration, aborting\n"); |
| 1380 | goto err_dma; |
| 1381 | } |
| 1382 | } |
| 1383 | } |
| 1384 | |
Alexander Duyck | aed5dec | 2009-02-06 23:16:04 +0000 | [diff] [blame] | 1385 | err = pci_request_selected_regions(pdev, pci_select_bars(pdev, |
| 1386 | IORESOURCE_MEM), |
| 1387 | igb_driver_name); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1388 | if (err) |
| 1389 | goto err_pci_reg; |
| 1390 | |
Frans Pop | 19d5afd | 2009-10-02 10:04:12 -0700 | [diff] [blame] | 1391 | pci_enable_pcie_error_reporting(pdev); |
Alexander Duyck | 40a914f | 2008-11-27 00:24:37 -0800 | [diff] [blame] | 1392 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1393 | pci_set_master(pdev); |
Auke Kok | c682fc2 | 2008-04-23 11:09:34 -0700 | [diff] [blame] | 1394 | pci_save_state(pdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1395 | |
| 1396 | err = -ENOMEM; |
Alexander Duyck | 1bfaf07 | 2009-02-19 20:39:23 -0800 | [diff] [blame] | 1397 | netdev = alloc_etherdev_mq(sizeof(struct igb_adapter), |
| 1398 | IGB_ABS_MAX_TX_QUEUES); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1399 | if (!netdev) |
| 1400 | goto err_alloc_etherdev; |
| 1401 | |
| 1402 | SET_NETDEV_DEV(netdev, &pdev->dev); |
| 1403 | |
| 1404 | pci_set_drvdata(pdev, netdev); |
| 1405 | adapter = netdev_priv(netdev); |
| 1406 | adapter->netdev = netdev; |
| 1407 | adapter->pdev = pdev; |
| 1408 | hw = &adapter->hw; |
| 1409 | hw->back = adapter; |
| 1410 | adapter->msg_enable = NETIF_MSG_DRV | NETIF_MSG_PROBE; |
| 1411 | |
| 1412 | mmio_start = pci_resource_start(pdev, 0); |
| 1413 | mmio_len = pci_resource_len(pdev, 0); |
| 1414 | |
| 1415 | err = -EIO; |
Alexander Duyck | 28b0759 | 2009-02-06 23:20:31 +0000 | [diff] [blame] | 1416 | hw->hw_addr = ioremap(mmio_start, mmio_len); |
| 1417 | if (!hw->hw_addr) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1418 | goto err_ioremap; |
| 1419 | |
Stephen Hemminger | 2e5c692 | 2008-11-19 22:20:44 -0800 | [diff] [blame] | 1420 | netdev->netdev_ops = &igb_netdev_ops; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1421 | igb_set_ethtool_ops(netdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1422 | netdev->watchdog_timeo = 5 * HZ; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1423 | |
| 1424 | strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); |
| 1425 | |
| 1426 | netdev->mem_start = mmio_start; |
| 1427 | netdev->mem_end = mmio_start + mmio_len; |
| 1428 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1429 | /* PCI config space info */ |
| 1430 | hw->vendor_id = pdev->vendor; |
| 1431 | hw->device_id = pdev->device; |
| 1432 | hw->revision_id = pdev->revision; |
| 1433 | hw->subsystem_vendor_id = pdev->subsystem_vendor; |
| 1434 | hw->subsystem_device_id = pdev->subsystem_device; |
| 1435 | |
| 1436 | /* setup the private structure */ |
| 1437 | hw->back = adapter; |
| 1438 | /* Copy the default MAC, PHY and NVM function pointers */ |
| 1439 | memcpy(&hw->mac.ops, ei->mac_ops, sizeof(hw->mac.ops)); |
| 1440 | memcpy(&hw->phy.ops, ei->phy_ops, sizeof(hw->phy.ops)); |
| 1441 | memcpy(&hw->nvm.ops, ei->nvm_ops, sizeof(hw->nvm.ops)); |
| 1442 | /* Initialize skew-specific constants */ |
| 1443 | err = ei->get_invariants(hw); |
| 1444 | if (err) |
Alexander Duyck | 450c87c | 2009-02-06 23:22:11 +0000 | [diff] [blame] | 1445 | goto err_sw_init; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1446 | |
Alexander Duyck | 2a3abf6 | 2009-04-07 14:37:52 +0000 | [diff] [blame] | 1447 | #ifdef CONFIG_PCI_IOV |
| 1448 | /* since iov functionality isn't critical to base device function we |
| 1449 | * can accept failure. If it fails we don't allow iov to be enabled */ |
| 1450 | if (hw->mac.type == e1000_82576) { |
| 1451 | /* 82576 supports a maximum of 7 VFs in addition to the PF */ |
| 1452 | unsigned int num_vfs = (max_vfs > 7) ? 7 : max_vfs; |
| 1453 | int i; |
| 1454 | unsigned char mac_addr[ETH_ALEN]; |
| 1455 | |
Alexander Duyck | 9ca046d | 2009-04-09 22:49:39 +0000 | [diff] [blame] | 1456 | if (num_vfs) { |
Alexander Duyck | 2a3abf6 | 2009-04-07 14:37:52 +0000 | [diff] [blame] | 1457 | adapter->vf_data = kcalloc(num_vfs, |
| 1458 | sizeof(struct vf_data_storage), |
| 1459 | GFP_KERNEL); |
Alexander Duyck | 9ca046d | 2009-04-09 22:49:39 +0000 | [diff] [blame] | 1460 | if (!adapter->vf_data) { |
| 1461 | dev_err(&pdev->dev, |
| 1462 | "Could not allocate VF private data - " |
| 1463 | "IOV enable failed\n"); |
Alexander Duyck | 2a3abf6 | 2009-04-07 14:37:52 +0000 | [diff] [blame] | 1464 | } else { |
Alexander Duyck | 9ca046d | 2009-04-09 22:49:39 +0000 | [diff] [blame] | 1465 | err = pci_enable_sriov(pdev, num_vfs); |
| 1466 | if (!err) { |
| 1467 | adapter->vfs_allocated_count = num_vfs; |
| 1468 | dev_info(&pdev->dev, |
| 1469 | "%d vfs allocated\n", |
| 1470 | num_vfs); |
| 1471 | for (i = 0; |
| 1472 | i < adapter->vfs_allocated_count; |
| 1473 | i++) { |
| 1474 | random_ether_addr(mac_addr); |
| 1475 | igb_set_vf_mac(adapter, i, |
| 1476 | mac_addr); |
| 1477 | } |
| 1478 | } else { |
| 1479 | kfree(adapter->vf_data); |
| 1480 | adapter->vf_data = NULL; |
| 1481 | } |
Alexander Duyck | 2a3abf6 | 2009-04-07 14:37:52 +0000 | [diff] [blame] | 1482 | } |
| 1483 | } |
| 1484 | } |
| 1485 | |
| 1486 | #endif |
Alexander Duyck | 450c87c | 2009-02-06 23:22:11 +0000 | [diff] [blame] | 1487 | /* setup the private structure */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1488 | err = igb_sw_init(adapter); |
| 1489 | if (err) |
| 1490 | goto err_sw_init; |
| 1491 | |
| 1492 | igb_get_bus_info_pcie(hw); |
| 1493 | |
| 1494 | hw->phy.autoneg_wait_to_complete = false; |
| 1495 | hw->mac.adaptive_ifs = true; |
| 1496 | |
| 1497 | /* Copper options */ |
| 1498 | if (hw->phy.media_type == e1000_media_type_copper) { |
| 1499 | hw->phy.mdix = AUTO_ALL_MODES; |
| 1500 | hw->phy.disable_polarity_correction = false; |
| 1501 | hw->phy.ms_type = e1000_ms_hw_default; |
| 1502 | } |
| 1503 | |
| 1504 | if (igb_check_reset_block(hw)) |
| 1505 | dev_info(&pdev->dev, |
| 1506 | "PHY reset is blocked due to SOL/IDER session.\n"); |
| 1507 | |
| 1508 | netdev->features = NETIF_F_SG | |
Alexander Duyck | 7d8eb29 | 2009-02-06 23:18:27 +0000 | [diff] [blame] | 1509 | NETIF_F_IP_CSUM | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1510 | NETIF_F_HW_VLAN_TX | |
| 1511 | NETIF_F_HW_VLAN_RX | |
| 1512 | NETIF_F_HW_VLAN_FILTER; |
| 1513 | |
Alexander Duyck | 7d8eb29 | 2009-02-06 23:18:27 +0000 | [diff] [blame] | 1514 | netdev->features |= NETIF_F_IPV6_CSUM; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1515 | netdev->features |= NETIF_F_TSO; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1516 | netdev->features |= NETIF_F_TSO6; |
Jeff Kirsher | 48f29ff | 2008-06-05 04:06:27 -0700 | [diff] [blame] | 1517 | |
Herbert Xu | 5c0999b | 2009-01-19 15:20:57 -0800 | [diff] [blame] | 1518 | netdev->features |= NETIF_F_GRO; |
Alexander Duyck | d335252 | 2008-07-08 15:12:13 -0700 | [diff] [blame] | 1519 | |
Jeff Kirsher | 48f29ff | 2008-06-05 04:06:27 -0700 | [diff] [blame] | 1520 | netdev->vlan_features |= NETIF_F_TSO; |
| 1521 | netdev->vlan_features |= NETIF_F_TSO6; |
Alexander Duyck | 7d8eb29 | 2009-02-06 23:18:27 +0000 | [diff] [blame] | 1522 | netdev->vlan_features |= NETIF_F_IP_CSUM; |
Alexander Duyck | cd1da50 | 2009-08-25 04:47:50 +0000 | [diff] [blame] | 1523 | netdev->vlan_features |= NETIF_F_IPV6_CSUM; |
Jeff Kirsher | 48f29ff | 2008-06-05 04:06:27 -0700 | [diff] [blame] | 1524 | netdev->vlan_features |= NETIF_F_SG; |
| 1525 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1526 | if (pci_using_dac) |
| 1527 | netdev->features |= NETIF_F_HIGHDMA; |
| 1528 | |
Jesse Brandeburg | b947356 | 2009-04-27 22:36:13 +0000 | [diff] [blame] | 1529 | if (adapter->hw.mac.type == e1000_82576) |
| 1530 | netdev->features |= NETIF_F_SCTP_CSUM; |
| 1531 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1532 | adapter->en_mng_pt = igb_enable_mng_pass_thru(&adapter->hw); |
| 1533 | |
| 1534 | /* before reading the NVM, reset the controller to put the device in a |
| 1535 | * known good starting state */ |
| 1536 | hw->mac.ops.reset_hw(hw); |
| 1537 | |
| 1538 | /* make sure the NVM is good */ |
| 1539 | if (igb_validate_nvm_checksum(hw) < 0) { |
| 1540 | dev_err(&pdev->dev, "The NVM Checksum Is Not Valid\n"); |
| 1541 | err = -EIO; |
| 1542 | goto err_eeprom; |
| 1543 | } |
| 1544 | |
| 1545 | /* copy the MAC address out of the NVM */ |
| 1546 | if (hw->mac.ops.read_mac_addr(hw)) |
| 1547 | dev_err(&pdev->dev, "NVM Read Error\n"); |
| 1548 | |
| 1549 | memcpy(netdev->dev_addr, hw->mac.addr, netdev->addr_len); |
| 1550 | memcpy(netdev->perm_addr, hw->mac.addr, netdev->addr_len); |
| 1551 | |
| 1552 | if (!is_valid_ether_addr(netdev->perm_addr)) { |
| 1553 | dev_err(&pdev->dev, "Invalid MAC Address\n"); |
| 1554 | err = -EIO; |
| 1555 | goto err_eeprom; |
| 1556 | } |
| 1557 | |
Alexander Duyck | 0e34048 | 2009-03-20 00:17:08 +0000 | [diff] [blame] | 1558 | setup_timer(&adapter->watchdog_timer, &igb_watchdog, |
| 1559 | (unsigned long) adapter); |
| 1560 | setup_timer(&adapter->phy_info_timer, &igb_update_phy_info, |
| 1561 | (unsigned long) adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1562 | |
| 1563 | INIT_WORK(&adapter->reset_task, igb_reset_task); |
| 1564 | INIT_WORK(&adapter->watchdog_task, igb_watchdog_task); |
| 1565 | |
Alexander Duyck | 450c87c | 2009-02-06 23:22:11 +0000 | [diff] [blame] | 1566 | /* Initialize link properties that are user-changeable */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1567 | adapter->fc_autoneg = true; |
| 1568 | hw->mac.autoneg = true; |
| 1569 | hw->phy.autoneg_advertised = 0x2f; |
| 1570 | |
Alexander Duyck | 0cce119 | 2009-07-23 18:10:24 +0000 | [diff] [blame] | 1571 | hw->fc.requested_mode = e1000_fc_default; |
| 1572 | hw->fc.current_mode = e1000_fc_default; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1573 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1574 | igb_validate_mdi_setting(hw); |
| 1575 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1576 | /* Initial Wake on LAN setting If APM wake is enabled in the EEPROM, |
| 1577 | * enable the ACPI Magic Packet filter |
| 1578 | */ |
| 1579 | |
Alexander Duyck | a2cf8b6 | 2009-03-13 20:41:17 +0000 | [diff] [blame] | 1580 | if (hw->bus.func == 0) |
Alexander Duyck | 312c75a | 2009-02-06 23:17:47 +0000 | [diff] [blame] | 1581 | hw->nvm.ops.read(hw, NVM_INIT_CONTROL3_PORT_A, 1, &eeprom_data); |
Alexander Duyck | a2cf8b6 | 2009-03-13 20:41:17 +0000 | [diff] [blame] | 1582 | else if (hw->bus.func == 1) |
| 1583 | 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] | 1584 | |
| 1585 | if (eeprom_data & eeprom_apme_mask) |
| 1586 | adapter->eeprom_wol |= E1000_WUFC_MAG; |
| 1587 | |
| 1588 | /* now that we have the eeprom settings, apply the special cases where |
| 1589 | * the eeprom may be wrong or the board simply won't support wake on |
| 1590 | * lan on a particular port */ |
| 1591 | switch (pdev->device) { |
| 1592 | case E1000_DEV_ID_82575GB_QUAD_COPPER: |
| 1593 | adapter->eeprom_wol = 0; |
| 1594 | break; |
| 1595 | case E1000_DEV_ID_82575EB_FIBER_SERDES: |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 1596 | case E1000_DEV_ID_82576_FIBER: |
| 1597 | case E1000_DEV_ID_82576_SERDES: |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1598 | /* Wake events only supported on port A for dual fiber |
| 1599 | * regardless of eeprom setting */ |
| 1600 | if (rd32(E1000_STATUS) & E1000_STATUS_FUNC_1) |
| 1601 | adapter->eeprom_wol = 0; |
| 1602 | break; |
Alexander Duyck | c8ea5ea | 2009-03-13 20:42:35 +0000 | [diff] [blame] | 1603 | case E1000_DEV_ID_82576_QUAD_COPPER: |
| 1604 | /* if quad port adapter, disable WoL on all but port A */ |
| 1605 | if (global_quad_port_a != 0) |
| 1606 | adapter->eeprom_wol = 0; |
| 1607 | else |
| 1608 | adapter->flags |= IGB_FLAG_QUAD_PORT_A; |
| 1609 | /* Reset for multiple quad port adapters */ |
| 1610 | if (++global_quad_port_a == 4) |
| 1611 | global_quad_port_a = 0; |
| 1612 | break; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1613 | } |
| 1614 | |
| 1615 | /* initialize the wol settings based on the eeprom settings */ |
| 1616 | adapter->wol = adapter->eeprom_wol; |
\"Rafael J. Wysocki\ | e1b86d8 | 2008-11-07 20:30:37 +0000 | [diff] [blame] | 1617 | device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1618 | |
| 1619 | /* reset the hardware with the new settings */ |
| 1620 | igb_reset(adapter); |
| 1621 | |
| 1622 | /* let the f/w know that the h/w is now under the control of the |
| 1623 | * driver. */ |
| 1624 | igb_get_hw_control(adapter); |
| 1625 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1626 | strcpy(netdev->name, "eth%d"); |
| 1627 | err = register_netdev(netdev); |
| 1628 | if (err) |
| 1629 | goto err_register; |
| 1630 | |
Jesse Brandeburg | b168dfc | 2009-04-17 20:44:32 +0000 | [diff] [blame] | 1631 | /* carrier off reporting is important to ethtool even BEFORE open */ |
| 1632 | netif_carrier_off(netdev); |
| 1633 | |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 1634 | #ifdef CONFIG_IGB_DCA |
Alexander Duyck | bbd98fe | 2009-01-31 00:52:30 -0800 | [diff] [blame] | 1635 | if (dca_add_requester(&pdev->dev) == 0) { |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 1636 | adapter->flags |= IGB_FLAG_DCA_ENABLED; |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 1637 | dev_info(&pdev->dev, "DCA enabled\n"); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 1638 | igb_setup_dca(adapter); |
| 1639 | } |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 1640 | |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 1641 | #endif |
| 1642 | |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 1643 | switch (hw->mac.type) { |
| 1644 | case e1000_82576: |
| 1645 | /* |
| 1646 | * Initialize hardware timer: we keep it running just in case |
| 1647 | * that some program needs it later on. |
| 1648 | */ |
| 1649 | memset(&adapter->cycles, 0, sizeof(adapter->cycles)); |
| 1650 | adapter->cycles.read = igb_read_clock; |
| 1651 | adapter->cycles.mask = CLOCKSOURCE_MASK(64); |
| 1652 | adapter->cycles.mult = 1; |
| 1653 | /** |
| 1654 | * Scale the NIC clock cycle by a large factor so that |
| 1655 | * relatively small clock corrections can be added or |
| 1656 | * substracted at each clock tick. The drawbacks of a large |
| 1657 | * factor are a) that the clock register overflows more quickly |
| 1658 | * (not such a big deal) and b) that the increment per tick has |
| 1659 | * to fit into 24 bits. As a result we need to use a shift of |
| 1660 | * 19 so we can fit a value of 16 into the TIMINCA register. |
| 1661 | */ |
| 1662 | adapter->cycles.shift = IGB_82576_TSYNC_SHIFT; |
| 1663 | wr32(E1000_TIMINCA, |
| 1664 | (1 << E1000_TIMINCA_16NS_SHIFT) | |
| 1665 | (16 << IGB_82576_TSYNC_SHIFT)); |
Patrick Ohly | 38c845c | 2009-02-12 05:03:41 +0000 | [diff] [blame] | 1666 | |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 1667 | /* Set registers so that rollover occurs soon to test this. */ |
| 1668 | wr32(E1000_SYSTIML, 0x00000000); |
| 1669 | wr32(E1000_SYSTIMH, 0xFF800000); |
| 1670 | wrfl(); |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 1671 | |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 1672 | timecounter_init(&adapter->clock, |
| 1673 | &adapter->cycles, |
| 1674 | ktime_to_ns(ktime_get_real())); |
| 1675 | /* |
| 1676 | * Synchronize our NIC clock against system wall clock. NIC |
| 1677 | * time stamp reading requires ~3us per sample, each sample |
| 1678 | * was pretty stable even under load => only require 10 |
| 1679 | * samples for each offset comparison. |
| 1680 | */ |
| 1681 | memset(&adapter->compare, 0, sizeof(adapter->compare)); |
| 1682 | adapter->compare.source = &adapter->clock; |
| 1683 | adapter->compare.target = ktime_get_real; |
| 1684 | adapter->compare.num_samples = 10; |
| 1685 | timecompare_update(&adapter->compare, 0); |
| 1686 | break; |
| 1687 | case e1000_82575: |
| 1688 | /* 82575 does not support timesync */ |
| 1689 | default: |
| 1690 | break; |
Patrick Ohly | 38c845c | 2009-02-12 05:03:41 +0000 | [diff] [blame] | 1691 | } |
Patrick Ohly | 38c845c | 2009-02-12 05:03:41 +0000 | [diff] [blame] | 1692 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1693 | dev_info(&pdev->dev, "Intel(R) Gigabit Ethernet Network Connection\n"); |
| 1694 | /* print bus type/speed/width info */ |
Johannes Berg | 7c510e4 | 2008-10-27 17:47:26 -0700 | [diff] [blame] | 1695 | dev_info(&pdev->dev, "%s: (PCIe:%s:%s) %pM\n", |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1696 | netdev->name, |
| 1697 | ((hw->bus.speed == e1000_bus_speed_2500) |
| 1698 | ? "2.5Gb/s" : "unknown"), |
Alexander Duyck | 59c3de8 | 2009-03-31 20:38:00 +0000 | [diff] [blame] | 1699 | ((hw->bus.width == e1000_bus_width_pcie_x4) ? "Width x4" : |
| 1700 | (hw->bus.width == e1000_bus_width_pcie_x2) ? "Width x2" : |
| 1701 | (hw->bus.width == e1000_bus_width_pcie_x1) ? "Width x1" : |
| 1702 | "unknown"), |
Johannes Berg | 7c510e4 | 2008-10-27 17:47:26 -0700 | [diff] [blame] | 1703 | netdev->dev_addr); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1704 | |
| 1705 | igb_read_part_num(hw, &part_num); |
| 1706 | dev_info(&pdev->dev, "%s: PBA No: %06x-%03x\n", netdev->name, |
| 1707 | (part_num >> 8), (part_num & 0xff)); |
| 1708 | |
| 1709 | dev_info(&pdev->dev, |
| 1710 | "Using %s interrupts. %d rx queue(s), %d tx queue(s)\n", |
| 1711 | adapter->msix_entries ? "MSI-X" : |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 1712 | (adapter->flags & IGB_FLAG_HAS_MSI) ? "MSI" : "legacy", |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1713 | adapter->num_rx_queues, adapter->num_tx_queues); |
| 1714 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1715 | return 0; |
| 1716 | |
| 1717 | err_register: |
| 1718 | igb_release_hw_control(adapter); |
| 1719 | err_eeprom: |
| 1720 | if (!igb_check_reset_block(hw)) |
Alexander Duyck | f5f4cf0 | 2008-11-21 21:30:24 -0800 | [diff] [blame] | 1721 | igb_reset_phy(hw); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1722 | |
| 1723 | if (hw->flash_address) |
| 1724 | iounmap(hw->flash_address); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1725 | err_sw_init: |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1726 | igb_clear_interrupt_scheme(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1727 | iounmap(hw->hw_addr); |
| 1728 | err_ioremap: |
| 1729 | free_netdev(netdev); |
| 1730 | err_alloc_etherdev: |
Alexander Duyck | aed5dec | 2009-02-06 23:16:04 +0000 | [diff] [blame] | 1731 | pci_release_selected_regions(pdev, pci_select_bars(pdev, |
| 1732 | IORESOURCE_MEM)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1733 | err_pci_reg: |
| 1734 | err_dma: |
| 1735 | pci_disable_device(pdev); |
| 1736 | return err; |
| 1737 | } |
| 1738 | |
| 1739 | /** |
| 1740 | * igb_remove - Device Removal Routine |
| 1741 | * @pdev: PCI device information struct |
| 1742 | * |
| 1743 | * igb_remove is called by the PCI subsystem to alert the driver |
| 1744 | * that it should release a PCI device. The could be caused by a |
| 1745 | * Hot-Plug event, or because the driver is going to be removed from |
| 1746 | * memory. |
| 1747 | **/ |
| 1748 | static void __devexit igb_remove(struct pci_dev *pdev) |
| 1749 | { |
| 1750 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 1751 | struct igb_adapter *adapter = netdev_priv(netdev); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 1752 | struct e1000_hw *hw = &adapter->hw; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1753 | |
| 1754 | /* flush_scheduled work may reschedule our watchdog task, so |
| 1755 | * explicitly disable watchdog tasks from being rescheduled */ |
| 1756 | set_bit(__IGB_DOWN, &adapter->state); |
| 1757 | del_timer_sync(&adapter->watchdog_timer); |
| 1758 | del_timer_sync(&adapter->phy_info_timer); |
| 1759 | |
| 1760 | flush_scheduled_work(); |
| 1761 | |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 1762 | #ifdef CONFIG_IGB_DCA |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 1763 | if (adapter->flags & IGB_FLAG_DCA_ENABLED) { |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 1764 | dev_info(&pdev->dev, "DCA disabled\n"); |
| 1765 | dca_remove_requester(&pdev->dev); |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 1766 | adapter->flags &= ~IGB_FLAG_DCA_ENABLED; |
Alexander Duyck | cbd347a | 2009-02-15 23:59:44 -0800 | [diff] [blame] | 1767 | wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_DISABLE); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 1768 | } |
| 1769 | #endif |
| 1770 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1771 | /* Release control of h/w to f/w. If f/w is AMT enabled, this |
| 1772 | * would have already happened in close and is redundant. */ |
| 1773 | igb_release_hw_control(adapter); |
| 1774 | |
| 1775 | unregister_netdev(netdev); |
| 1776 | |
Alexander Duyck | f5f4cf0 | 2008-11-21 21:30:24 -0800 | [diff] [blame] | 1777 | if (!igb_check_reset_block(&adapter->hw)) |
| 1778 | igb_reset_phy(&adapter->hw); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1779 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1780 | igb_clear_interrupt_scheme(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1781 | |
Alexander Duyck | 3768011 | 2009-02-19 20:40:30 -0800 | [diff] [blame] | 1782 | #ifdef CONFIG_PCI_IOV |
| 1783 | /* reclaim resources allocated to VFs */ |
| 1784 | if (adapter->vf_data) { |
| 1785 | /* disable iov and allow time for transactions to clear */ |
| 1786 | pci_disable_sriov(pdev); |
| 1787 | msleep(500); |
| 1788 | |
| 1789 | kfree(adapter->vf_data); |
| 1790 | adapter->vf_data = NULL; |
| 1791 | wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ); |
| 1792 | msleep(100); |
| 1793 | dev_info(&pdev->dev, "IOV Disabled\n"); |
| 1794 | } |
| 1795 | #endif |
Alexander Duyck | 28b0759 | 2009-02-06 23:20:31 +0000 | [diff] [blame] | 1796 | iounmap(hw->hw_addr); |
| 1797 | if (hw->flash_address) |
| 1798 | iounmap(hw->flash_address); |
Alexander Duyck | aed5dec | 2009-02-06 23:16:04 +0000 | [diff] [blame] | 1799 | pci_release_selected_regions(pdev, pci_select_bars(pdev, |
| 1800 | IORESOURCE_MEM)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1801 | |
| 1802 | free_netdev(netdev); |
| 1803 | |
Frans Pop | 19d5afd | 2009-10-02 10:04:12 -0700 | [diff] [blame] | 1804 | pci_disable_pcie_error_reporting(pdev); |
Alexander Duyck | 40a914f | 2008-11-27 00:24:37 -0800 | [diff] [blame] | 1805 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1806 | pci_disable_device(pdev); |
| 1807 | } |
| 1808 | |
| 1809 | /** |
| 1810 | * igb_sw_init - Initialize general software structures (struct igb_adapter) |
| 1811 | * @adapter: board private structure to initialize |
| 1812 | * |
| 1813 | * igb_sw_init initializes the Adapter private data structure. |
| 1814 | * Fields are initialized based on PCI device information and |
| 1815 | * OS network device settings (MTU size). |
| 1816 | **/ |
| 1817 | static int __devinit igb_sw_init(struct igb_adapter *adapter) |
| 1818 | { |
| 1819 | struct e1000_hw *hw = &adapter->hw; |
| 1820 | struct net_device *netdev = adapter->netdev; |
| 1821 | struct pci_dev *pdev = adapter->pdev; |
| 1822 | |
| 1823 | pci_read_config_word(pdev, PCI_COMMAND, &hw->bus.pci_cmd_word); |
| 1824 | |
Alexander Duyck | 68fd991 | 2008-11-20 00:48:10 -0800 | [diff] [blame] | 1825 | adapter->tx_ring_count = IGB_DEFAULT_TXD; |
| 1826 | adapter->rx_ring_count = IGB_DEFAULT_RXD; |
Alexander Duyck | 4fc82ad | 2009-10-27 23:45:42 +0000 | [diff] [blame] | 1827 | adapter->rx_itr_setting = IGB_DEFAULT_ITR; |
| 1828 | adapter->tx_itr_setting = IGB_DEFAULT_ITR; |
| 1829 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1830 | adapter->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; |
| 1831 | adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN; |
| 1832 | |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 1833 | /* This call may decrease the number of queues depending on |
| 1834 | * interrupt mode. */ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1835 | if (igb_init_interrupt_scheme(adapter)) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1836 | dev_err(&pdev->dev, "Unable to allocate memory for queues\n"); |
| 1837 | return -ENOMEM; |
| 1838 | } |
| 1839 | |
| 1840 | /* Explicitly disable IRQ since the NIC can be in any state. */ |
| 1841 | igb_irq_disable(adapter); |
| 1842 | |
| 1843 | set_bit(__IGB_DOWN, &adapter->state); |
| 1844 | return 0; |
| 1845 | } |
| 1846 | |
| 1847 | /** |
| 1848 | * igb_open - Called when a network interface is made active |
| 1849 | * @netdev: network interface device structure |
| 1850 | * |
| 1851 | * Returns 0 on success, negative value on failure |
| 1852 | * |
| 1853 | * The open entry point is called when a network interface is made |
| 1854 | * active by the system (IFF_UP). At this point all resources needed |
| 1855 | * for transmit and receive operations are allocated, the interrupt |
| 1856 | * handler is registered with the OS, the watchdog timer is started, |
| 1857 | * and the stack is notified that the interface is ready. |
| 1858 | **/ |
| 1859 | static int igb_open(struct net_device *netdev) |
| 1860 | { |
| 1861 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 1862 | struct e1000_hw *hw = &adapter->hw; |
| 1863 | int err; |
| 1864 | int i; |
| 1865 | |
| 1866 | /* disallow open during test */ |
| 1867 | if (test_bit(__IGB_TESTING, &adapter->state)) |
| 1868 | return -EBUSY; |
| 1869 | |
Jesse Brandeburg | b168dfc | 2009-04-17 20:44:32 +0000 | [diff] [blame] | 1870 | netif_carrier_off(netdev); |
| 1871 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1872 | /* allocate transmit descriptors */ |
| 1873 | err = igb_setup_all_tx_resources(adapter); |
| 1874 | if (err) |
| 1875 | goto err_setup_tx; |
| 1876 | |
| 1877 | /* allocate receive descriptors */ |
| 1878 | err = igb_setup_all_rx_resources(adapter); |
| 1879 | if (err) |
| 1880 | goto err_setup_rx; |
| 1881 | |
| 1882 | /* e1000_power_up_phy(adapter); */ |
| 1883 | |
| 1884 | adapter->mng_vlan_id = IGB_MNG_VLAN_NONE; |
| 1885 | if ((adapter->hw.mng_cookie.status & |
| 1886 | E1000_MNG_DHCP_COOKIE_STATUS_VLAN)) |
| 1887 | igb_update_mng_vlan(adapter); |
| 1888 | |
| 1889 | /* before we allocate an interrupt, we must be ready to handle it. |
| 1890 | * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt |
| 1891 | * as soon as we call pci_request_irq, so we have to setup our |
| 1892 | * clean_rx handler before we do so. */ |
| 1893 | igb_configure(adapter); |
| 1894 | |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 1895 | igb_set_vmolr(hw, adapter->vfs_allocated_count); |
| 1896 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1897 | err = igb_request_irq(adapter); |
| 1898 | if (err) |
| 1899 | goto err_req_irq; |
| 1900 | |
| 1901 | /* From here on the code is the same as igb_up() */ |
| 1902 | clear_bit(__IGB_DOWN, &adapter->state); |
| 1903 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 1904 | for (i = 0; i < adapter->num_q_vectors; i++) { |
| 1905 | struct igb_q_vector *q_vector = adapter->q_vector[i]; |
| 1906 | napi_enable(&q_vector->napi); |
| 1907 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1908 | |
| 1909 | /* Clear any pending interrupts. */ |
| 1910 | rd32(E1000_ICR); |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 1911 | |
| 1912 | igb_irq_enable(adapter); |
| 1913 | |
Alexander Duyck | d496030 | 2009-10-27 15:53:45 +0000 | [diff] [blame] | 1914 | /* notify VFs that reset has been completed */ |
| 1915 | if (adapter->vfs_allocated_count) { |
| 1916 | u32 reg_data = rd32(E1000_CTRL_EXT); |
| 1917 | reg_data |= E1000_CTRL_EXT_PFRSTD; |
| 1918 | wr32(E1000_CTRL_EXT, reg_data); |
| 1919 | } |
| 1920 | |
Jeff Kirsher | d55b53f | 2008-07-18 04:33:03 -0700 | [diff] [blame] | 1921 | netif_tx_start_all_queues(netdev); |
| 1922 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1923 | /* Fire a link status change interrupt to start the watchdog. */ |
| 1924 | wr32(E1000_ICS, E1000_ICS_LSC); |
| 1925 | |
| 1926 | return 0; |
| 1927 | |
| 1928 | err_req_irq: |
| 1929 | igb_release_hw_control(adapter); |
| 1930 | /* e1000_power_down_phy(adapter); */ |
| 1931 | igb_free_all_rx_resources(adapter); |
| 1932 | err_setup_rx: |
| 1933 | igb_free_all_tx_resources(adapter); |
| 1934 | err_setup_tx: |
| 1935 | igb_reset(adapter); |
| 1936 | |
| 1937 | return err; |
| 1938 | } |
| 1939 | |
| 1940 | /** |
| 1941 | * igb_close - Disables a network interface |
| 1942 | * @netdev: network interface device structure |
| 1943 | * |
| 1944 | * Returns 0, this is not allowed to fail |
| 1945 | * |
| 1946 | * The close entry point is called when an interface is de-activated |
| 1947 | * by the OS. The hardware is still under the driver's control, but |
| 1948 | * needs to be disabled. A global MAC reset is issued to stop the |
| 1949 | * hardware, and all transmit and receive resources are freed. |
| 1950 | **/ |
| 1951 | static int igb_close(struct net_device *netdev) |
| 1952 | { |
| 1953 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 1954 | |
| 1955 | WARN_ON(test_bit(__IGB_RESETTING, &adapter->state)); |
| 1956 | igb_down(adapter); |
| 1957 | |
| 1958 | igb_free_irq(adapter); |
| 1959 | |
| 1960 | igb_free_all_tx_resources(adapter); |
| 1961 | igb_free_all_rx_resources(adapter); |
| 1962 | |
| 1963 | /* kill manageability vlan ID if supported, but not if a vlan with |
| 1964 | * the same ID is registered on the host OS (let 8021q kill it) */ |
| 1965 | if ((adapter->hw.mng_cookie.status & |
| 1966 | E1000_MNG_DHCP_COOKIE_STATUS_VLAN) && |
| 1967 | !(adapter->vlgrp && |
| 1968 | vlan_group_get_device(adapter->vlgrp, adapter->mng_vlan_id))) |
| 1969 | igb_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id); |
| 1970 | |
| 1971 | return 0; |
| 1972 | } |
| 1973 | |
| 1974 | /** |
| 1975 | * igb_setup_tx_resources - allocate Tx resources (Descriptors) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1976 | * @tx_ring: tx descriptor ring (for a specific queue) to setup |
| 1977 | * |
| 1978 | * Return 0 on success, negative on failure |
| 1979 | **/ |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 1980 | int igb_setup_tx_resources(struct igb_ring *tx_ring) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1981 | { |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 1982 | struct pci_dev *pdev = tx_ring->pdev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1983 | int size; |
| 1984 | |
| 1985 | size = sizeof(struct igb_buffer) * tx_ring->count; |
| 1986 | tx_ring->buffer_info = vmalloc(size); |
| 1987 | if (!tx_ring->buffer_info) |
| 1988 | goto err; |
| 1989 | memset(tx_ring->buffer_info, 0, size); |
| 1990 | |
| 1991 | /* round up to nearest 4K */ |
Alexander Duyck | 85e8d00 | 2009-02-16 00:00:20 -0800 | [diff] [blame] | 1992 | tx_ring->size = tx_ring->count * sizeof(union e1000_adv_tx_desc); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 1993 | tx_ring->size = ALIGN(tx_ring->size, 4096); |
| 1994 | |
| 1995 | tx_ring->desc = pci_alloc_consistent(pdev, tx_ring->size, |
| 1996 | &tx_ring->dma); |
| 1997 | |
| 1998 | if (!tx_ring->desc) |
| 1999 | goto err; |
| 2000 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2001 | tx_ring->next_to_use = 0; |
| 2002 | tx_ring->next_to_clean = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2003 | return 0; |
| 2004 | |
| 2005 | err: |
| 2006 | vfree(tx_ring->buffer_info); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 2007 | dev_err(&pdev->dev, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2008 | "Unable to allocate memory for the transmit descriptor ring\n"); |
| 2009 | return -ENOMEM; |
| 2010 | } |
| 2011 | |
| 2012 | /** |
| 2013 | * igb_setup_all_tx_resources - wrapper to allocate Tx resources |
| 2014 | * (Descriptors) for all queues |
| 2015 | * @adapter: board private structure |
| 2016 | * |
| 2017 | * Return 0 on success, negative on failure |
| 2018 | **/ |
| 2019 | static int igb_setup_all_tx_resources(struct igb_adapter *adapter) |
| 2020 | { |
| 2021 | int i, err = 0; |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 2022 | int r_idx; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2023 | |
| 2024 | for (i = 0; i < adapter->num_tx_queues; i++) { |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 2025 | err = igb_setup_tx_resources(&adapter->tx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2026 | if (err) { |
| 2027 | dev_err(&adapter->pdev->dev, |
| 2028 | "Allocation for Tx Queue %u failed\n", i); |
| 2029 | for (i--; i >= 0; i--) |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 2030 | igb_free_tx_resources(&adapter->tx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2031 | break; |
| 2032 | } |
| 2033 | } |
| 2034 | |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 2035 | for (i = 0; i < IGB_MAX_TX_QUEUES; i++) { |
| 2036 | r_idx = i % adapter->num_tx_queues; |
| 2037 | adapter->multi_tx_table[i] = &adapter->tx_ring[r_idx]; |
Alexander Duyck | eebbbdb | 2009-02-06 23:19:29 +0000 | [diff] [blame] | 2038 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2039 | return err; |
| 2040 | } |
| 2041 | |
| 2042 | /** |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 2043 | * igb_setup_tctl - configure the transmit control registers |
| 2044 | * @adapter: Board private structure |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2045 | **/ |
Alexander Duyck | d7ee5b3 | 2009-10-27 15:54:23 +0000 | [diff] [blame] | 2046 | void igb_setup_tctl(struct igb_adapter *adapter) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2047 | { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2048 | struct e1000_hw *hw = &adapter->hw; |
| 2049 | u32 tctl; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2050 | |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 2051 | /* disable queue 0 which is enabled by default on 82575 and 82576 */ |
| 2052 | wr32(E1000_TXDCTL(0), 0); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2053 | |
| 2054 | /* Program the Transmit Control Register */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2055 | tctl = rd32(E1000_TCTL); |
| 2056 | tctl &= ~E1000_TCTL_CT; |
| 2057 | tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC | |
| 2058 | (E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT); |
| 2059 | |
| 2060 | igb_config_collision_dist(hw); |
| 2061 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2062 | /* Enable transmits */ |
| 2063 | tctl |= E1000_TCTL_EN; |
| 2064 | |
| 2065 | wr32(E1000_TCTL, tctl); |
| 2066 | } |
| 2067 | |
| 2068 | /** |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 2069 | * igb_configure_tx_ring - Configure transmit ring after Reset |
| 2070 | * @adapter: board private structure |
| 2071 | * @ring: tx ring to configure |
| 2072 | * |
| 2073 | * Configure a transmit ring after a reset. |
| 2074 | **/ |
Alexander Duyck | d7ee5b3 | 2009-10-27 15:54:23 +0000 | [diff] [blame] | 2075 | void igb_configure_tx_ring(struct igb_adapter *adapter, |
| 2076 | struct igb_ring *ring) |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 2077 | { |
| 2078 | struct e1000_hw *hw = &adapter->hw; |
| 2079 | u32 txdctl; |
| 2080 | u64 tdba = ring->dma; |
| 2081 | int reg_idx = ring->reg_idx; |
| 2082 | |
| 2083 | /* disable the queue */ |
| 2084 | txdctl = rd32(E1000_TXDCTL(reg_idx)); |
| 2085 | wr32(E1000_TXDCTL(reg_idx), |
| 2086 | txdctl & ~E1000_TXDCTL_QUEUE_ENABLE); |
| 2087 | wrfl(); |
| 2088 | mdelay(10); |
| 2089 | |
| 2090 | wr32(E1000_TDLEN(reg_idx), |
| 2091 | ring->count * sizeof(union e1000_adv_tx_desc)); |
| 2092 | wr32(E1000_TDBAL(reg_idx), |
| 2093 | tdba & 0x00000000ffffffffULL); |
| 2094 | wr32(E1000_TDBAH(reg_idx), tdba >> 32); |
| 2095 | |
Alexander Duyck | fce99e3 | 2009-10-27 15:51:27 +0000 | [diff] [blame] | 2096 | ring->head = hw->hw_addr + E1000_TDH(reg_idx); |
| 2097 | ring->tail = hw->hw_addr + E1000_TDT(reg_idx); |
| 2098 | writel(0, ring->head); |
| 2099 | writel(0, ring->tail); |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 2100 | |
| 2101 | txdctl |= IGB_TX_PTHRESH; |
| 2102 | txdctl |= IGB_TX_HTHRESH << 8; |
| 2103 | txdctl |= IGB_TX_WTHRESH << 16; |
| 2104 | |
| 2105 | txdctl |= E1000_TXDCTL_QUEUE_ENABLE; |
| 2106 | wr32(E1000_TXDCTL(reg_idx), txdctl); |
| 2107 | } |
| 2108 | |
| 2109 | /** |
| 2110 | * igb_configure_tx - Configure transmit Unit after Reset |
| 2111 | * @adapter: board private structure |
| 2112 | * |
| 2113 | * Configure the Tx unit of the MAC after a reset. |
| 2114 | **/ |
| 2115 | static void igb_configure_tx(struct igb_adapter *adapter) |
| 2116 | { |
| 2117 | int i; |
| 2118 | |
| 2119 | for (i = 0; i < adapter->num_tx_queues; i++) |
| 2120 | igb_configure_tx_ring(adapter, &adapter->tx_ring[i]); |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 2121 | } |
| 2122 | |
| 2123 | /** |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2124 | * igb_setup_rx_resources - allocate Rx resources (Descriptors) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2125 | * @rx_ring: rx descriptor ring (for a specific queue) to setup |
| 2126 | * |
| 2127 | * Returns 0 on success, negative on failure |
| 2128 | **/ |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 2129 | int igb_setup_rx_resources(struct igb_ring *rx_ring) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2130 | { |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 2131 | struct pci_dev *pdev = rx_ring->pdev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2132 | int size, desc_len; |
| 2133 | |
| 2134 | size = sizeof(struct igb_buffer) * rx_ring->count; |
| 2135 | rx_ring->buffer_info = vmalloc(size); |
| 2136 | if (!rx_ring->buffer_info) |
| 2137 | goto err; |
| 2138 | memset(rx_ring->buffer_info, 0, size); |
| 2139 | |
| 2140 | desc_len = sizeof(union e1000_adv_rx_desc); |
| 2141 | |
| 2142 | /* Round up to nearest 4K */ |
| 2143 | rx_ring->size = rx_ring->count * desc_len; |
| 2144 | rx_ring->size = ALIGN(rx_ring->size, 4096); |
| 2145 | |
| 2146 | rx_ring->desc = pci_alloc_consistent(pdev, rx_ring->size, |
| 2147 | &rx_ring->dma); |
| 2148 | |
| 2149 | if (!rx_ring->desc) |
| 2150 | goto err; |
| 2151 | |
| 2152 | rx_ring->next_to_clean = 0; |
| 2153 | rx_ring->next_to_use = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2154 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2155 | return 0; |
| 2156 | |
| 2157 | err: |
| 2158 | vfree(rx_ring->buffer_info); |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 2159 | dev_err(&pdev->dev, "Unable to allocate memory for " |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2160 | "the receive descriptor ring\n"); |
| 2161 | return -ENOMEM; |
| 2162 | } |
| 2163 | |
| 2164 | /** |
| 2165 | * igb_setup_all_rx_resources - wrapper to allocate Rx resources |
| 2166 | * (Descriptors) for all queues |
| 2167 | * @adapter: board private structure |
| 2168 | * |
| 2169 | * Return 0 on success, negative on failure |
| 2170 | **/ |
| 2171 | static int igb_setup_all_rx_resources(struct igb_adapter *adapter) |
| 2172 | { |
| 2173 | int i, err = 0; |
| 2174 | |
| 2175 | for (i = 0; i < adapter->num_rx_queues; i++) { |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 2176 | err = igb_setup_rx_resources(&adapter->rx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2177 | if (err) { |
| 2178 | dev_err(&adapter->pdev->dev, |
| 2179 | "Allocation for Rx Queue %u failed\n", i); |
| 2180 | for (i--; i >= 0; i--) |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 2181 | igb_free_rx_resources(&adapter->rx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2182 | break; |
| 2183 | } |
| 2184 | } |
| 2185 | |
| 2186 | return err; |
| 2187 | } |
| 2188 | |
| 2189 | /** |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 2190 | * igb_setup_mrqc - configure the multiple receive queue control registers |
| 2191 | * @adapter: Board private structure |
| 2192 | **/ |
| 2193 | static void igb_setup_mrqc(struct igb_adapter *adapter) |
| 2194 | { |
| 2195 | struct e1000_hw *hw = &adapter->hw; |
| 2196 | u32 mrqc, rxcsum; |
| 2197 | u32 j, num_rx_queues, shift = 0, shift2 = 0; |
| 2198 | union e1000_reta { |
| 2199 | u32 dword; |
| 2200 | u8 bytes[4]; |
| 2201 | } reta; |
| 2202 | static const u8 rsshash[40] = { |
| 2203 | 0x6d, 0x5a, 0x56, 0xda, 0x25, 0x5b, 0x0e, 0xc2, 0x41, 0x67, |
| 2204 | 0x25, 0x3d, 0x43, 0xa3, 0x8f, 0xb0, 0xd0, 0xca, 0x2b, 0xcb, |
| 2205 | 0xae, 0x7b, 0x30, 0xb4, 0x77, 0xcb, 0x2d, 0xa3, 0x80, 0x30, |
| 2206 | 0xf2, 0x0c, 0x6a, 0x42, 0xb7, 0x3b, 0xbe, 0xac, 0x01, 0xfa }; |
| 2207 | |
| 2208 | /* Fill out hash function seeds */ |
| 2209 | for (j = 0; j < 10; j++) { |
| 2210 | u32 rsskey = rsshash[(j * 4)]; |
| 2211 | rsskey |= rsshash[(j * 4) + 1] << 8; |
| 2212 | rsskey |= rsshash[(j * 4) + 2] << 16; |
| 2213 | rsskey |= rsshash[(j * 4) + 3] << 24; |
| 2214 | array_wr32(E1000_RSSRK(0), j, rsskey); |
| 2215 | } |
| 2216 | |
| 2217 | num_rx_queues = adapter->num_rx_queues; |
| 2218 | |
| 2219 | if (adapter->vfs_allocated_count) { |
| 2220 | /* 82575 and 82576 supports 2 RSS queues for VMDq */ |
| 2221 | switch (hw->mac.type) { |
| 2222 | case e1000_82576: |
| 2223 | shift = 3; |
| 2224 | num_rx_queues = 2; |
| 2225 | break; |
| 2226 | case e1000_82575: |
| 2227 | shift = 2; |
| 2228 | shift2 = 6; |
| 2229 | default: |
| 2230 | break; |
| 2231 | } |
| 2232 | } else { |
| 2233 | if (hw->mac.type == e1000_82575) |
| 2234 | shift = 6; |
| 2235 | } |
| 2236 | |
| 2237 | for (j = 0; j < (32 * 4); j++) { |
| 2238 | reta.bytes[j & 3] = (j % num_rx_queues) << shift; |
| 2239 | if (shift2) |
| 2240 | reta.bytes[j & 3] |= num_rx_queues << shift2; |
| 2241 | if ((j & 3) == 3) |
| 2242 | wr32(E1000_RETA(j >> 2), reta.dword); |
| 2243 | } |
| 2244 | |
| 2245 | /* |
| 2246 | * Disable raw packet checksumming so that RSS hash is placed in |
| 2247 | * descriptor on writeback. No need to enable TCP/UDP/IP checksum |
| 2248 | * offloads as they are enabled by default |
| 2249 | */ |
| 2250 | rxcsum = rd32(E1000_RXCSUM); |
| 2251 | rxcsum |= E1000_RXCSUM_PCSD; |
| 2252 | |
| 2253 | if (adapter->hw.mac.type >= e1000_82576) |
| 2254 | /* Enable Receive Checksum Offload for SCTP */ |
| 2255 | rxcsum |= E1000_RXCSUM_CRCOFL; |
| 2256 | |
| 2257 | /* Don't need to set TUOFL or IPOFL, they default to 1 */ |
| 2258 | wr32(E1000_RXCSUM, rxcsum); |
| 2259 | |
| 2260 | /* If VMDq is enabled then we set the appropriate mode for that, else |
| 2261 | * we default to RSS so that an RSS hash is calculated per packet even |
| 2262 | * if we are only using one queue */ |
| 2263 | if (adapter->vfs_allocated_count) { |
| 2264 | if (hw->mac.type > e1000_82575) { |
| 2265 | /* Set the default pool for the PF's first queue */ |
| 2266 | u32 vtctl = rd32(E1000_VT_CTL); |
| 2267 | vtctl &= ~(E1000_VT_CTL_DEFAULT_POOL_MASK | |
| 2268 | E1000_VT_CTL_DISABLE_DEF_POOL); |
| 2269 | vtctl |= adapter->vfs_allocated_count << |
| 2270 | E1000_VT_CTL_DEFAULT_POOL_SHIFT; |
| 2271 | wr32(E1000_VT_CTL, vtctl); |
| 2272 | } |
| 2273 | if (adapter->num_rx_queues > 1) |
| 2274 | mrqc = E1000_MRQC_ENABLE_VMDQ_RSS_2Q; |
| 2275 | else |
| 2276 | mrqc = E1000_MRQC_ENABLE_VMDQ; |
| 2277 | } else { |
| 2278 | mrqc = E1000_MRQC_ENABLE_RSS_4Q; |
| 2279 | } |
| 2280 | igb_vmm_control(adapter); |
| 2281 | |
| 2282 | mrqc |= (E1000_MRQC_RSS_FIELD_IPV4 | |
| 2283 | E1000_MRQC_RSS_FIELD_IPV4_TCP); |
| 2284 | mrqc |= (E1000_MRQC_RSS_FIELD_IPV6 | |
| 2285 | E1000_MRQC_RSS_FIELD_IPV6_TCP); |
| 2286 | mrqc |= (E1000_MRQC_RSS_FIELD_IPV4_UDP | |
| 2287 | E1000_MRQC_RSS_FIELD_IPV6_UDP); |
| 2288 | mrqc |= (E1000_MRQC_RSS_FIELD_IPV6_UDP_EX | |
| 2289 | E1000_MRQC_RSS_FIELD_IPV6_TCP_EX); |
| 2290 | |
| 2291 | wr32(E1000_MRQC, mrqc); |
| 2292 | } |
| 2293 | |
| 2294 | /** |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2295 | * igb_setup_rctl - configure the receive control registers |
| 2296 | * @adapter: Board private structure |
| 2297 | **/ |
Alexander Duyck | d7ee5b3 | 2009-10-27 15:54:23 +0000 | [diff] [blame] | 2298 | void igb_setup_rctl(struct igb_adapter *adapter) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2299 | { |
| 2300 | struct e1000_hw *hw = &adapter->hw; |
| 2301 | u32 rctl; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2302 | |
| 2303 | rctl = rd32(E1000_RCTL); |
| 2304 | |
| 2305 | rctl &= ~(3 << E1000_RCTL_MO_SHIFT); |
Alexander Duyck | 69d728b | 2008-11-25 01:04:03 -0800 | [diff] [blame] | 2306 | rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2307 | |
Alexander Duyck | 69d728b | 2008-11-25 01:04:03 -0800 | [diff] [blame] | 2308 | rctl |= E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_RDMTS_HALF | |
Alexander Duyck | 28b0759 | 2009-02-06 23:20:31 +0000 | [diff] [blame] | 2309 | (hw->mac.mc_filter_type << E1000_RCTL_MO_SHIFT); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2310 | |
Auke Kok | 87cb7e8 | 2008-07-08 15:08:29 -0700 | [diff] [blame] | 2311 | /* |
| 2312 | * enable stripping of CRC. It's unlikely this will break BMC |
| 2313 | * redirection as it did with e1000. Newer features require |
| 2314 | * that the HW strips the CRC. |
Alexander Duyck | 73cd78f | 2009-02-12 18:16:59 +0000 | [diff] [blame] | 2315 | */ |
Auke Kok | 87cb7e8 | 2008-07-08 15:08:29 -0700 | [diff] [blame] | 2316 | rctl |= E1000_RCTL_SECRC; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2317 | |
Alexander Duyck | 9b07f3d3 | 2008-11-25 01:03:26 -0800 | [diff] [blame] | 2318 | /* |
Alexander Duyck | ec54d7d | 2009-01-31 00:52:57 -0800 | [diff] [blame] | 2319 | * disable store bad packets and clear size bits. |
Alexander Duyck | 9b07f3d3 | 2008-11-25 01:03:26 -0800 | [diff] [blame] | 2320 | */ |
Alexander Duyck | ec54d7d | 2009-01-31 00:52:57 -0800 | [diff] [blame] | 2321 | rctl &= ~(E1000_RCTL_SBP | E1000_RCTL_SZ_256); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2322 | |
Alexander Duyck | 6ec43fe | 2009-10-27 15:50:48 +0000 | [diff] [blame] | 2323 | /* enable LPE to prevent packets larger than max_frame_size */ |
| 2324 | rctl |= E1000_RCTL_LPE; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2325 | |
Alexander Duyck | 952f72a | 2009-10-27 15:51:07 +0000 | [diff] [blame] | 2326 | /* disable queue 0 to prevent tail write w/o re-config */ |
| 2327 | wr32(E1000_RXDCTL(0), 0); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2328 | |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 2329 | /* Attention!!! For SR-IOV PF driver operations you must enable |
| 2330 | * queue drop for all VF and PF queues to prevent head of line blocking |
| 2331 | * if an un-trusted VF does not provide descriptors to hardware. |
| 2332 | */ |
| 2333 | if (adapter->vfs_allocated_count) { |
| 2334 | u32 vmolr; |
| 2335 | |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 2336 | /* set all queue drop enable bits */ |
| 2337 | wr32(E1000_QDE, ALL_QUEUES); |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 2338 | |
Alexander Duyck | 77a2294 | 2009-05-06 16:43:48 -0700 | [diff] [blame] | 2339 | vmolr = rd32(E1000_VMOLR(adapter->vfs_allocated_count)); |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 2340 | if (rctl & E1000_RCTL_LPE) |
| 2341 | vmolr |= E1000_VMOLR_LPE; |
Alexander Duyck | 77a2294 | 2009-05-06 16:43:48 -0700 | [diff] [blame] | 2342 | if (adapter->num_rx_queues > 1) |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 2343 | vmolr |= E1000_VMOLR_RSSE; |
Alexander Duyck | 77a2294 | 2009-05-06 16:43:48 -0700 | [diff] [blame] | 2344 | wr32(E1000_VMOLR(adapter->vfs_allocated_count), vmolr); |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 2345 | } |
| 2346 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2347 | wr32(E1000_RCTL, rctl); |
| 2348 | } |
| 2349 | |
| 2350 | /** |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 2351 | * igb_rlpml_set - set maximum receive packet size |
| 2352 | * @adapter: board private structure |
| 2353 | * |
| 2354 | * Configure maximum receivable packet size. |
| 2355 | **/ |
| 2356 | static void igb_rlpml_set(struct igb_adapter *adapter) |
| 2357 | { |
| 2358 | u32 max_frame_size = adapter->max_frame_size; |
| 2359 | struct e1000_hw *hw = &adapter->hw; |
| 2360 | u16 pf_id = adapter->vfs_allocated_count; |
| 2361 | |
| 2362 | if (adapter->vlgrp) |
| 2363 | max_frame_size += VLAN_TAG_SIZE; |
| 2364 | |
| 2365 | /* if vfs are enabled we set RLPML to the largest possible request |
| 2366 | * size and set the VMOLR RLPML to the size we need */ |
| 2367 | if (pf_id) { |
| 2368 | igb_set_vf_rlpml(adapter, max_frame_size, pf_id); |
| 2369 | max_frame_size = MAX_STD_JUMBO_FRAME_SIZE + VLAN_TAG_SIZE; |
| 2370 | } |
| 2371 | |
| 2372 | wr32(E1000_RLPML, max_frame_size); |
| 2373 | } |
| 2374 | |
| 2375 | /** |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 2376 | * igb_configure_rx_ring - Configure a receive ring after Reset |
| 2377 | * @adapter: board private structure |
| 2378 | * @ring: receive ring to be configured |
| 2379 | * |
| 2380 | * Configure the Rx unit of the MAC after a reset. |
| 2381 | **/ |
Alexander Duyck | d7ee5b3 | 2009-10-27 15:54:23 +0000 | [diff] [blame] | 2382 | void igb_configure_rx_ring(struct igb_adapter *adapter, |
| 2383 | struct igb_ring *ring) |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 2384 | { |
| 2385 | struct e1000_hw *hw = &adapter->hw; |
| 2386 | u64 rdba = ring->dma; |
| 2387 | int reg_idx = ring->reg_idx; |
Alexander Duyck | 952f72a | 2009-10-27 15:51:07 +0000 | [diff] [blame] | 2388 | u32 srrctl, rxdctl; |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 2389 | |
| 2390 | /* disable the queue */ |
| 2391 | rxdctl = rd32(E1000_RXDCTL(reg_idx)); |
| 2392 | wr32(E1000_RXDCTL(reg_idx), |
| 2393 | rxdctl & ~E1000_RXDCTL_QUEUE_ENABLE); |
| 2394 | |
| 2395 | /* Set DMA base address registers */ |
| 2396 | wr32(E1000_RDBAL(reg_idx), |
| 2397 | rdba & 0x00000000ffffffffULL); |
| 2398 | wr32(E1000_RDBAH(reg_idx), rdba >> 32); |
| 2399 | wr32(E1000_RDLEN(reg_idx), |
| 2400 | ring->count * sizeof(union e1000_adv_rx_desc)); |
| 2401 | |
| 2402 | /* initialize head and tail */ |
Alexander Duyck | fce99e3 | 2009-10-27 15:51:27 +0000 | [diff] [blame] | 2403 | ring->head = hw->hw_addr + E1000_RDH(reg_idx); |
| 2404 | ring->tail = hw->hw_addr + E1000_RDT(reg_idx); |
| 2405 | writel(0, ring->head); |
| 2406 | writel(0, ring->tail); |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 2407 | |
Alexander Duyck | 952f72a | 2009-10-27 15:51:07 +0000 | [diff] [blame] | 2408 | /* set descriptor configuration */ |
Alexander Duyck | 4c84485 | 2009-10-27 15:52:07 +0000 | [diff] [blame] | 2409 | if (ring->rx_buffer_len < IGB_RXBUFFER_1024) { |
| 2410 | srrctl = ALIGN(ring->rx_buffer_len, 64) << |
Alexander Duyck | 952f72a | 2009-10-27 15:51:07 +0000 | [diff] [blame] | 2411 | E1000_SRRCTL_BSIZEHDRSIZE_SHIFT; |
| 2412 | #if (PAGE_SIZE / 2) > IGB_RXBUFFER_16384 |
| 2413 | srrctl |= IGB_RXBUFFER_16384 >> |
| 2414 | E1000_SRRCTL_BSIZEPKT_SHIFT; |
| 2415 | #else |
| 2416 | srrctl |= (PAGE_SIZE / 2) >> |
| 2417 | E1000_SRRCTL_BSIZEPKT_SHIFT; |
| 2418 | #endif |
| 2419 | srrctl |= E1000_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS; |
| 2420 | } else { |
Alexander Duyck | 4c84485 | 2009-10-27 15:52:07 +0000 | [diff] [blame] | 2421 | srrctl = ALIGN(ring->rx_buffer_len, 1024) >> |
Alexander Duyck | 952f72a | 2009-10-27 15:51:07 +0000 | [diff] [blame] | 2422 | E1000_SRRCTL_BSIZEPKT_SHIFT; |
| 2423 | srrctl |= E1000_SRRCTL_DESCTYPE_ADV_ONEBUF; |
| 2424 | } |
| 2425 | |
| 2426 | wr32(E1000_SRRCTL(reg_idx), srrctl); |
| 2427 | |
Alexander Duyck | 85b430b | 2009-10-27 15:50:29 +0000 | [diff] [blame] | 2428 | /* enable receive descriptor fetching */ |
| 2429 | rxdctl = rd32(E1000_RXDCTL(reg_idx)); |
| 2430 | rxdctl |= E1000_RXDCTL_QUEUE_ENABLE; |
| 2431 | rxdctl &= 0xFFF00000; |
| 2432 | rxdctl |= IGB_RX_PTHRESH; |
| 2433 | rxdctl |= IGB_RX_HTHRESH << 8; |
| 2434 | rxdctl |= IGB_RX_WTHRESH << 16; |
| 2435 | wr32(E1000_RXDCTL(reg_idx), rxdctl); |
| 2436 | } |
| 2437 | |
| 2438 | /** |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2439 | * igb_configure_rx - Configure receive Unit after Reset |
| 2440 | * @adapter: board private structure |
| 2441 | * |
| 2442 | * Configure the Rx unit of the MAC after a reset. |
| 2443 | **/ |
| 2444 | static void igb_configure_rx(struct igb_adapter *adapter) |
| 2445 | { |
Hannes Eder | 9107584 | 2009-02-18 19:36:04 -0800 | [diff] [blame] | 2446 | int i; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2447 | |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 2448 | /* set UTA to appropriate mode */ |
| 2449 | igb_set_uta(adapter); |
| 2450 | |
Alexander Duyck | 26ad917 | 2009-10-05 06:32:49 +0000 | [diff] [blame] | 2451 | /* set the correct pool for the PF default MAC address in entry 0 */ |
| 2452 | igb_rar_set_qsel(adapter, adapter->hw.mac.addr, 0, |
| 2453 | adapter->vfs_allocated_count); |
| 2454 | |
Alexander Duyck | 06cf266 | 2009-10-27 15:53:25 +0000 | [diff] [blame] | 2455 | /* Setup the HW Rx Head and Tail Descriptor Pointers and |
| 2456 | * the Base and Length of the Rx Descriptor Ring */ |
| 2457 | for (i = 0; i < adapter->num_rx_queues; i++) |
| 2458 | igb_configure_rx_ring(adapter, &adapter->rx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2459 | } |
| 2460 | |
| 2461 | /** |
| 2462 | * igb_free_tx_resources - Free Tx Resources per Queue |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2463 | * @tx_ring: Tx descriptor ring for a specific queue |
| 2464 | * |
| 2465 | * Free all transmit software resources |
| 2466 | **/ |
Alexander Duyck | 68fd991 | 2008-11-20 00:48:10 -0800 | [diff] [blame] | 2467 | void igb_free_tx_resources(struct igb_ring *tx_ring) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2468 | { |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 2469 | igb_clean_tx_ring(tx_ring); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2470 | |
| 2471 | vfree(tx_ring->buffer_info); |
| 2472 | tx_ring->buffer_info = NULL; |
| 2473 | |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 2474 | pci_free_consistent(tx_ring->pdev, tx_ring->size, |
| 2475 | tx_ring->desc, tx_ring->dma); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2476 | |
| 2477 | tx_ring->desc = NULL; |
| 2478 | } |
| 2479 | |
| 2480 | /** |
| 2481 | * igb_free_all_tx_resources - Free Tx Resources for All Queues |
| 2482 | * @adapter: board private structure |
| 2483 | * |
| 2484 | * Free all transmit software resources |
| 2485 | **/ |
| 2486 | static void igb_free_all_tx_resources(struct igb_adapter *adapter) |
| 2487 | { |
| 2488 | int i; |
| 2489 | |
| 2490 | for (i = 0; i < adapter->num_tx_queues; i++) |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 2491 | igb_free_tx_resources(&adapter->tx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2492 | } |
| 2493 | |
Alexander Duyck | b1a436c | 2009-10-27 15:54:43 +0000 | [diff] [blame] | 2494 | void igb_unmap_and_free_tx_resource(struct igb_ring *tx_ring, |
| 2495 | struct igb_buffer *buffer_info) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2496 | { |
Alexander Duyck | 65689fe | 2009-03-20 00:17:43 +0000 | [diff] [blame] | 2497 | buffer_info->dma = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2498 | if (buffer_info->skb) { |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 2499 | skb_dma_unmap(&tx_ring->pdev->dev, |
| 2500 | buffer_info->skb, |
Alexander Duyck | 65689fe | 2009-03-20 00:17:43 +0000 | [diff] [blame] | 2501 | DMA_TO_DEVICE); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2502 | dev_kfree_skb_any(buffer_info->skb); |
| 2503 | buffer_info->skb = NULL; |
| 2504 | } |
| 2505 | buffer_info->time_stamp = 0; |
| 2506 | /* buffer_info must be completely set up in the transmit path */ |
| 2507 | } |
| 2508 | |
| 2509 | /** |
| 2510 | * igb_clean_tx_ring - Free Tx Buffers |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2511 | * @tx_ring: ring to be cleaned |
| 2512 | **/ |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 2513 | static void igb_clean_tx_ring(struct igb_ring *tx_ring) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2514 | { |
| 2515 | struct igb_buffer *buffer_info; |
| 2516 | unsigned long size; |
| 2517 | unsigned int i; |
| 2518 | |
| 2519 | if (!tx_ring->buffer_info) |
| 2520 | return; |
| 2521 | /* Free all the Tx ring sk_buffs */ |
| 2522 | |
| 2523 | for (i = 0; i < tx_ring->count; i++) { |
| 2524 | buffer_info = &tx_ring->buffer_info[i]; |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 2525 | igb_unmap_and_free_tx_resource(tx_ring, buffer_info); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2526 | } |
| 2527 | |
| 2528 | size = sizeof(struct igb_buffer) * tx_ring->count; |
| 2529 | memset(tx_ring->buffer_info, 0, size); |
| 2530 | |
| 2531 | /* Zero out the descriptor ring */ |
| 2532 | |
| 2533 | memset(tx_ring->desc, 0, tx_ring->size); |
| 2534 | |
| 2535 | tx_ring->next_to_use = 0; |
| 2536 | tx_ring->next_to_clean = 0; |
| 2537 | |
Alexander Duyck | fce99e3 | 2009-10-27 15:51:27 +0000 | [diff] [blame] | 2538 | writel(0, tx_ring->head); |
| 2539 | writel(0, tx_ring->tail); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2540 | } |
| 2541 | |
| 2542 | /** |
| 2543 | * igb_clean_all_tx_rings - Free Tx Buffers for all queues |
| 2544 | * @adapter: board private structure |
| 2545 | **/ |
| 2546 | static void igb_clean_all_tx_rings(struct igb_adapter *adapter) |
| 2547 | { |
| 2548 | int i; |
| 2549 | |
| 2550 | for (i = 0; i < adapter->num_tx_queues; i++) |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 2551 | igb_clean_tx_ring(&adapter->tx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2552 | } |
| 2553 | |
| 2554 | /** |
| 2555 | * igb_free_rx_resources - Free Rx Resources |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2556 | * @rx_ring: ring to clean the resources from |
| 2557 | * |
| 2558 | * Free all receive software resources |
| 2559 | **/ |
Alexander Duyck | 68fd991 | 2008-11-20 00:48:10 -0800 | [diff] [blame] | 2560 | void igb_free_rx_resources(struct igb_ring *rx_ring) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2561 | { |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 2562 | igb_clean_rx_ring(rx_ring); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2563 | |
| 2564 | vfree(rx_ring->buffer_info); |
| 2565 | rx_ring->buffer_info = NULL; |
| 2566 | |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 2567 | pci_free_consistent(rx_ring->pdev, rx_ring->size, |
| 2568 | rx_ring->desc, rx_ring->dma); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2569 | |
| 2570 | rx_ring->desc = NULL; |
| 2571 | } |
| 2572 | |
| 2573 | /** |
| 2574 | * igb_free_all_rx_resources - Free Rx Resources for All Queues |
| 2575 | * @adapter: board private structure |
| 2576 | * |
| 2577 | * Free all receive software resources |
| 2578 | **/ |
| 2579 | static void igb_free_all_rx_resources(struct igb_adapter *adapter) |
| 2580 | { |
| 2581 | int i; |
| 2582 | |
| 2583 | for (i = 0; i < adapter->num_rx_queues; i++) |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 2584 | igb_free_rx_resources(&adapter->rx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2585 | } |
| 2586 | |
| 2587 | /** |
| 2588 | * igb_clean_rx_ring - Free Rx Buffers per Queue |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2589 | * @rx_ring: ring to free buffers from |
| 2590 | **/ |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 2591 | static void igb_clean_rx_ring(struct igb_ring *rx_ring) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2592 | { |
| 2593 | struct igb_buffer *buffer_info; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2594 | unsigned long size; |
| 2595 | unsigned int i; |
| 2596 | |
| 2597 | if (!rx_ring->buffer_info) |
| 2598 | return; |
| 2599 | /* Free all the Rx ring sk_buffs */ |
| 2600 | for (i = 0; i < rx_ring->count; i++) { |
| 2601 | buffer_info = &rx_ring->buffer_info[i]; |
| 2602 | if (buffer_info->dma) { |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 2603 | pci_unmap_single(rx_ring->pdev, |
| 2604 | buffer_info->dma, |
Alexander Duyck | 4c84485 | 2009-10-27 15:52:07 +0000 | [diff] [blame] | 2605 | rx_ring->rx_buffer_len, |
Alexander Duyck | 6ec43fe | 2009-10-27 15:50:48 +0000 | [diff] [blame] | 2606 | PCI_DMA_FROMDEVICE); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2607 | buffer_info->dma = 0; |
| 2608 | } |
| 2609 | |
| 2610 | if (buffer_info->skb) { |
| 2611 | dev_kfree_skb(buffer_info->skb); |
| 2612 | buffer_info->skb = NULL; |
| 2613 | } |
Alexander Duyck | 6ec43fe | 2009-10-27 15:50:48 +0000 | [diff] [blame] | 2614 | if (buffer_info->page_dma) { |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 2615 | pci_unmap_page(rx_ring->pdev, |
| 2616 | buffer_info->page_dma, |
Alexander Duyck | 6ec43fe | 2009-10-27 15:50:48 +0000 | [diff] [blame] | 2617 | PAGE_SIZE / 2, |
| 2618 | PCI_DMA_FROMDEVICE); |
| 2619 | buffer_info->page_dma = 0; |
| 2620 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2621 | if (buffer_info->page) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2622 | put_page(buffer_info->page); |
| 2623 | buffer_info->page = NULL; |
Alexander Duyck | bf36c1a | 2008-07-08 15:11:40 -0700 | [diff] [blame] | 2624 | buffer_info->page_offset = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2625 | } |
| 2626 | } |
| 2627 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2628 | size = sizeof(struct igb_buffer) * rx_ring->count; |
| 2629 | memset(rx_ring->buffer_info, 0, size); |
| 2630 | |
| 2631 | /* Zero out the descriptor ring */ |
| 2632 | memset(rx_ring->desc, 0, rx_ring->size); |
| 2633 | |
| 2634 | rx_ring->next_to_clean = 0; |
| 2635 | rx_ring->next_to_use = 0; |
| 2636 | |
Alexander Duyck | fce99e3 | 2009-10-27 15:51:27 +0000 | [diff] [blame] | 2637 | writel(0, rx_ring->head); |
| 2638 | writel(0, rx_ring->tail); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2639 | } |
| 2640 | |
| 2641 | /** |
| 2642 | * igb_clean_all_rx_rings - Free Rx Buffers for all queues |
| 2643 | * @adapter: board private structure |
| 2644 | **/ |
| 2645 | static void igb_clean_all_rx_rings(struct igb_adapter *adapter) |
| 2646 | { |
| 2647 | int i; |
| 2648 | |
| 2649 | for (i = 0; i < adapter->num_rx_queues; i++) |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 2650 | igb_clean_rx_ring(&adapter->rx_ring[i]); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2651 | } |
| 2652 | |
| 2653 | /** |
| 2654 | * igb_set_mac - Change the Ethernet Address of the NIC |
| 2655 | * @netdev: network interface device structure |
| 2656 | * @p: pointer to an address structure |
| 2657 | * |
| 2658 | * Returns 0 on success, negative on failure |
| 2659 | **/ |
| 2660 | static int igb_set_mac(struct net_device *netdev, void *p) |
| 2661 | { |
| 2662 | struct igb_adapter *adapter = netdev_priv(netdev); |
Alexander Duyck | 28b0759 | 2009-02-06 23:20:31 +0000 | [diff] [blame] | 2663 | struct e1000_hw *hw = &adapter->hw; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2664 | struct sockaddr *addr = p; |
| 2665 | |
| 2666 | if (!is_valid_ether_addr(addr->sa_data)) |
| 2667 | return -EADDRNOTAVAIL; |
| 2668 | |
| 2669 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
Alexander Duyck | 28b0759 | 2009-02-06 23:20:31 +0000 | [diff] [blame] | 2670 | memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2671 | |
Alexander Duyck | 26ad917 | 2009-10-05 06:32:49 +0000 | [diff] [blame] | 2672 | /* set the correct pool for the new PF MAC address in entry 0 */ |
| 2673 | igb_rar_set_qsel(adapter, hw->mac.addr, 0, |
| 2674 | adapter->vfs_allocated_count); |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 2675 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2676 | return 0; |
| 2677 | } |
| 2678 | |
| 2679 | /** |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 2680 | * igb_write_mc_addr_list - write multicast addresses to MTA |
| 2681 | * @netdev: network interface device structure |
| 2682 | * |
| 2683 | * Writes multicast address list to the MTA hash table. |
| 2684 | * Returns: -ENOMEM on failure |
| 2685 | * 0 on no addresses written |
| 2686 | * X on writing X addresses to MTA |
| 2687 | **/ |
| 2688 | static int igb_write_mc_addr_list(struct net_device *netdev) |
| 2689 | { |
| 2690 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 2691 | struct e1000_hw *hw = &adapter->hw; |
| 2692 | struct dev_mc_list *mc_ptr = netdev->mc_list; |
| 2693 | u8 *mta_list; |
| 2694 | u32 vmolr = 0; |
| 2695 | int i; |
| 2696 | |
| 2697 | if (!netdev->mc_count) { |
| 2698 | /* nothing to program, so clear mc list */ |
| 2699 | igb_update_mc_addr_list(hw, NULL, 0); |
| 2700 | igb_restore_vf_multicasts(adapter); |
| 2701 | return 0; |
| 2702 | } |
| 2703 | |
| 2704 | mta_list = kzalloc(netdev->mc_count * 6, GFP_ATOMIC); |
| 2705 | if (!mta_list) |
| 2706 | return -ENOMEM; |
| 2707 | |
| 2708 | /* set vmolr receive overflow multicast bit */ |
| 2709 | vmolr |= E1000_VMOLR_ROMPE; |
| 2710 | |
| 2711 | /* The shared function expects a packed array of only addresses. */ |
| 2712 | mc_ptr = netdev->mc_list; |
| 2713 | |
| 2714 | for (i = 0; i < netdev->mc_count; i++) { |
| 2715 | if (!mc_ptr) |
| 2716 | break; |
| 2717 | memcpy(mta_list + (i*ETH_ALEN), mc_ptr->dmi_addr, ETH_ALEN); |
| 2718 | mc_ptr = mc_ptr->next; |
| 2719 | } |
| 2720 | igb_update_mc_addr_list(hw, mta_list, i); |
| 2721 | kfree(mta_list); |
| 2722 | |
| 2723 | return netdev->mc_count; |
| 2724 | } |
| 2725 | |
| 2726 | /** |
| 2727 | * igb_write_uc_addr_list - write unicast addresses to RAR table |
| 2728 | * @netdev: network interface device structure |
| 2729 | * |
| 2730 | * Writes unicast address list to the RAR table. |
| 2731 | * Returns: -ENOMEM on failure/insufficient address space |
| 2732 | * 0 on no addresses written |
| 2733 | * X on writing X addresses to the RAR table |
| 2734 | **/ |
| 2735 | static int igb_write_uc_addr_list(struct net_device *netdev) |
| 2736 | { |
| 2737 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 2738 | struct e1000_hw *hw = &adapter->hw; |
| 2739 | unsigned int vfn = adapter->vfs_allocated_count; |
| 2740 | unsigned int rar_entries = hw->mac.rar_entry_count - (vfn + 1); |
| 2741 | int count = 0; |
| 2742 | |
| 2743 | /* return ENOMEM indicating insufficient memory for addresses */ |
| 2744 | if (netdev->uc.count > rar_entries) |
| 2745 | return -ENOMEM; |
| 2746 | |
| 2747 | if (netdev->uc.count && rar_entries) { |
| 2748 | struct netdev_hw_addr *ha; |
| 2749 | list_for_each_entry(ha, &netdev->uc.list, list) { |
| 2750 | if (!rar_entries) |
| 2751 | break; |
| 2752 | igb_rar_set_qsel(adapter, ha->addr, |
| 2753 | rar_entries--, |
| 2754 | vfn); |
| 2755 | count++; |
| 2756 | } |
| 2757 | } |
| 2758 | /* write the addresses in reverse order to avoid write combining */ |
| 2759 | for (; rar_entries > 0 ; rar_entries--) { |
| 2760 | wr32(E1000_RAH(rar_entries), 0); |
| 2761 | wr32(E1000_RAL(rar_entries), 0); |
| 2762 | } |
| 2763 | wrfl(); |
| 2764 | |
| 2765 | return count; |
| 2766 | } |
| 2767 | |
| 2768 | /** |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 2769 | * igb_set_rx_mode - Secondary Unicast, Multicast and Promiscuous mode set |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2770 | * @netdev: network interface device structure |
| 2771 | * |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 2772 | * The set_rx_mode entry point is called whenever the unicast or multicast |
| 2773 | * address lists or the network interface flags are updated. This routine is |
| 2774 | * responsible for configuring the hardware for proper unicast, multicast, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2775 | * promiscuous mode, and all-multi behavior. |
| 2776 | **/ |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 2777 | static void igb_set_rx_mode(struct net_device *netdev) |
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; |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 2781 | unsigned int vfn = adapter->vfs_allocated_count; |
| 2782 | u32 rctl, vmolr = 0; |
| 2783 | int count; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2784 | |
| 2785 | /* Check for Promiscuous and All Multicast modes */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2786 | rctl = rd32(E1000_RCTL); |
| 2787 | |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 2788 | /* clear the effected bits */ |
| 2789 | rctl &= ~(E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_VFE); |
| 2790 | |
Patrick McHardy | 746b9f0 | 2008-07-16 20:15:45 -0700 | [diff] [blame] | 2791 | if (netdev->flags & IFF_PROMISC) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2792 | rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE); |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 2793 | vmolr |= (E1000_VMOLR_ROPE | E1000_VMOLR_MPME); |
Patrick McHardy | 746b9f0 | 2008-07-16 20:15:45 -0700 | [diff] [blame] | 2794 | } else { |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 2795 | if (netdev->flags & IFF_ALLMULTI) { |
Patrick McHardy | 746b9f0 | 2008-07-16 20:15:45 -0700 | [diff] [blame] | 2796 | rctl |= E1000_RCTL_MPE; |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 2797 | vmolr |= E1000_VMOLR_MPME; |
| 2798 | } else { |
| 2799 | /* |
| 2800 | * Write addresses to the MTA, if the attempt fails |
| 2801 | * then we should just turn on promiscous mode so |
| 2802 | * that we can at least receive multicast traffic |
| 2803 | */ |
| 2804 | count = igb_write_mc_addr_list(netdev); |
| 2805 | if (count < 0) { |
| 2806 | rctl |= E1000_RCTL_MPE; |
| 2807 | vmolr |= E1000_VMOLR_MPME; |
| 2808 | } else if (count) { |
| 2809 | vmolr |= E1000_VMOLR_ROMPE; |
| 2810 | } |
| 2811 | } |
| 2812 | /* |
| 2813 | * Write addresses to available RAR registers, if there is not |
| 2814 | * sufficient space to store all the addresses then enable |
| 2815 | * unicast promiscous mode |
| 2816 | */ |
| 2817 | count = igb_write_uc_addr_list(netdev); |
| 2818 | if (count < 0) { |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 2819 | rctl |= E1000_RCTL_UPE; |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 2820 | vmolr |= E1000_VMOLR_ROPE; |
| 2821 | } |
Patrick McHardy | 78ed11a | 2008-07-16 20:16:14 -0700 | [diff] [blame] | 2822 | rctl |= E1000_RCTL_VFE; |
Patrick McHardy | 746b9f0 | 2008-07-16 20:15:45 -0700 | [diff] [blame] | 2823 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2824 | wr32(E1000_RCTL, rctl); |
| 2825 | |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 2826 | /* |
| 2827 | * In order to support SR-IOV and eventually VMDq it is necessary to set |
| 2828 | * the VMOLR to enable the appropriate modes. Without this workaround |
| 2829 | * we will have issues with VLAN tag stripping not being done for frames |
| 2830 | * that are only arriving because we are the default pool |
| 2831 | */ |
| 2832 | if (hw->mac.type < e1000_82576) |
Alexander Duyck | 28fc06f | 2009-07-23 18:08:54 +0000 | [diff] [blame] | 2833 | return; |
Alexander Duyck | 28fc06f | 2009-07-23 18:08:54 +0000 | [diff] [blame] | 2834 | |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 2835 | vmolr |= rd32(E1000_VMOLR(vfn)) & |
| 2836 | ~(E1000_VMOLR_ROPE | E1000_VMOLR_MPME | E1000_VMOLR_ROMPE); |
| 2837 | wr32(E1000_VMOLR(vfn), vmolr); |
Alexander Duyck | 28fc06f | 2009-07-23 18:08:54 +0000 | [diff] [blame] | 2838 | igb_restore_vf_multicasts(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2839 | } |
| 2840 | |
| 2841 | /* Need to wait a few seconds after link up to get diagnostic information from |
| 2842 | * the phy */ |
| 2843 | static void igb_update_phy_info(unsigned long data) |
| 2844 | { |
| 2845 | struct igb_adapter *adapter = (struct igb_adapter *) data; |
Alexander Duyck | f5f4cf0 | 2008-11-21 21:30:24 -0800 | [diff] [blame] | 2846 | igb_get_phy_info(&adapter->hw); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2847 | } |
| 2848 | |
| 2849 | /** |
Alexander Duyck | 4d6b725 | 2009-02-06 23:16:24 +0000 | [diff] [blame] | 2850 | * igb_has_link - check shared code for link and determine up/down |
| 2851 | * @adapter: pointer to driver private info |
| 2852 | **/ |
| 2853 | static bool igb_has_link(struct igb_adapter *adapter) |
| 2854 | { |
| 2855 | struct e1000_hw *hw = &adapter->hw; |
| 2856 | bool link_active = false; |
| 2857 | s32 ret_val = 0; |
| 2858 | |
| 2859 | /* get_link_status is set on LSC (link status) interrupt or |
| 2860 | * rx sequence error interrupt. get_link_status will stay |
| 2861 | * false until the e1000_check_for_link establishes link |
| 2862 | * for copper adapters ONLY |
| 2863 | */ |
| 2864 | switch (hw->phy.media_type) { |
| 2865 | case e1000_media_type_copper: |
| 2866 | if (hw->mac.get_link_status) { |
| 2867 | ret_val = hw->mac.ops.check_for_link(hw); |
| 2868 | link_active = !hw->mac.get_link_status; |
| 2869 | } else { |
| 2870 | link_active = true; |
| 2871 | } |
| 2872 | break; |
Alexander Duyck | 4d6b725 | 2009-02-06 23:16:24 +0000 | [diff] [blame] | 2873 | case e1000_media_type_internal_serdes: |
| 2874 | ret_val = hw->mac.ops.check_for_link(hw); |
| 2875 | link_active = hw->mac.serdes_has_link; |
| 2876 | break; |
| 2877 | default: |
| 2878 | case e1000_media_type_unknown: |
| 2879 | break; |
| 2880 | } |
| 2881 | |
| 2882 | return link_active; |
| 2883 | } |
| 2884 | |
| 2885 | /** |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2886 | * igb_watchdog - Timer Call-back |
| 2887 | * @data: pointer to adapter cast into an unsigned long |
| 2888 | **/ |
| 2889 | static void igb_watchdog(unsigned long data) |
| 2890 | { |
| 2891 | struct igb_adapter *adapter = (struct igb_adapter *)data; |
| 2892 | /* Do the rest outside of interrupt context */ |
| 2893 | schedule_work(&adapter->watchdog_task); |
| 2894 | } |
| 2895 | |
| 2896 | static void igb_watchdog_task(struct work_struct *work) |
| 2897 | { |
| 2898 | struct igb_adapter *adapter = container_of(work, |
| 2899 | struct igb_adapter, watchdog_task); |
| 2900 | struct e1000_hw *hw = &adapter->hw; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2901 | struct net_device *netdev = adapter->netdev; |
| 2902 | struct igb_ring *tx_ring = adapter->tx_ring; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2903 | u32 link; |
Alexander Duyck | 7a6ea55 | 2008-08-26 04:25:03 -0700 | [diff] [blame] | 2904 | int i; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2905 | |
Alexander Duyck | 4d6b725 | 2009-02-06 23:16:24 +0000 | [diff] [blame] | 2906 | link = igb_has_link(adapter); |
| 2907 | if ((netif_carrier_ok(netdev)) && link) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2908 | goto link_up; |
| 2909 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2910 | if (link) { |
| 2911 | if (!netif_carrier_ok(netdev)) { |
| 2912 | u32 ctrl; |
| 2913 | hw->mac.ops.get_speed_and_duplex(&adapter->hw, |
| 2914 | &adapter->link_speed, |
| 2915 | &adapter->link_duplex); |
| 2916 | |
| 2917 | ctrl = rd32(E1000_CTRL); |
Alexander Duyck | 527d47c | 2008-11-27 00:21:39 -0800 | [diff] [blame] | 2918 | /* Links status message must follow this format */ |
| 2919 | printk(KERN_INFO "igb: %s NIC Link is Up %d Mbps %s, " |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2920 | "Flow Control: %s\n", |
Alexander Duyck | 527d47c | 2008-11-27 00:21:39 -0800 | [diff] [blame] | 2921 | netdev->name, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2922 | adapter->link_speed, |
| 2923 | adapter->link_duplex == FULL_DUPLEX ? |
| 2924 | "Full Duplex" : "Half Duplex", |
| 2925 | ((ctrl & E1000_CTRL_TFCE) && (ctrl & |
| 2926 | E1000_CTRL_RFCE)) ? "RX/TX" : ((ctrl & |
| 2927 | E1000_CTRL_RFCE) ? "RX" : ((ctrl & |
| 2928 | E1000_CTRL_TFCE) ? "TX" : "None"))); |
| 2929 | |
| 2930 | /* tweak tx_queue_len according to speed/duplex and |
| 2931 | * adjust the timeout factor */ |
| 2932 | netdev->tx_queue_len = adapter->tx_queue_len; |
| 2933 | adapter->tx_timeout_factor = 1; |
| 2934 | switch (adapter->link_speed) { |
| 2935 | case SPEED_10: |
| 2936 | netdev->tx_queue_len = 10; |
| 2937 | adapter->tx_timeout_factor = 14; |
| 2938 | break; |
| 2939 | case SPEED_100: |
| 2940 | netdev->tx_queue_len = 100; |
| 2941 | /* maybe add some timeout factor ? */ |
| 2942 | break; |
| 2943 | } |
| 2944 | |
| 2945 | netif_carrier_on(netdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2946 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 2947 | igb_ping_all_vfs(adapter); |
| 2948 | |
Alexander Duyck | 4b1a987 | 2009-02-06 23:19:50 +0000 | [diff] [blame] | 2949 | /* link state has changed, schedule phy info update */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2950 | if (!test_bit(__IGB_DOWN, &adapter->state)) |
| 2951 | mod_timer(&adapter->phy_info_timer, |
| 2952 | round_jiffies(jiffies + 2 * HZ)); |
| 2953 | } |
| 2954 | } else { |
| 2955 | if (netif_carrier_ok(netdev)) { |
| 2956 | adapter->link_speed = 0; |
| 2957 | adapter->link_duplex = 0; |
Alexander Duyck | 527d47c | 2008-11-27 00:21:39 -0800 | [diff] [blame] | 2958 | /* Links status message must follow this format */ |
| 2959 | printk(KERN_INFO "igb: %s NIC Link is Down\n", |
| 2960 | netdev->name); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2961 | netif_carrier_off(netdev); |
Alexander Duyck | 4b1a987 | 2009-02-06 23:19:50 +0000 | [diff] [blame] | 2962 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 2963 | igb_ping_all_vfs(adapter); |
| 2964 | |
Alexander Duyck | 4b1a987 | 2009-02-06 23:19:50 +0000 | [diff] [blame] | 2965 | /* link state has changed, schedule phy info update */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2966 | if (!test_bit(__IGB_DOWN, &adapter->state)) |
| 2967 | mod_timer(&adapter->phy_info_timer, |
| 2968 | round_jiffies(jiffies + 2 * HZ)); |
| 2969 | } |
| 2970 | } |
| 2971 | |
| 2972 | link_up: |
| 2973 | igb_update_stats(adapter); |
| 2974 | |
Alexander Duyck | 4b1a987 | 2009-02-06 23:19:50 +0000 | [diff] [blame] | 2975 | hw->mac.tx_packet_delta = adapter->stats.tpt - adapter->tpt_old; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2976 | adapter->tpt_old = adapter->stats.tpt; |
Alexander Duyck | 4b1a987 | 2009-02-06 23:19:50 +0000 | [diff] [blame] | 2977 | hw->mac.collision_delta = adapter->stats.colc - adapter->colc_old; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2978 | adapter->colc_old = adapter->stats.colc; |
| 2979 | |
| 2980 | adapter->gorc = adapter->stats.gorc - adapter->gorc_old; |
| 2981 | adapter->gorc_old = adapter->stats.gorc; |
| 2982 | adapter->gotc = adapter->stats.gotc - adapter->gotc_old; |
| 2983 | adapter->gotc_old = adapter->stats.gotc; |
| 2984 | |
| 2985 | igb_update_adaptive(&adapter->hw); |
| 2986 | |
| 2987 | if (!netif_carrier_ok(netdev)) { |
Alexander Duyck | c493ea4 | 2009-03-20 00:16:50 +0000 | [diff] [blame] | 2988 | if (igb_desc_unused(tx_ring) + 1 < tx_ring->count) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2989 | /* We've lost link, so the controller stops DMA, |
| 2990 | * but we've got queued Tx work that's never going |
| 2991 | * to get done, so reset controller to flush Tx. |
| 2992 | * (Do the reset outside of interrupt context). */ |
| 2993 | adapter->tx_timeout_count++; |
| 2994 | schedule_work(&adapter->reset_task); |
Jesse Brandeburg | c2d5ab4 | 2009-05-07 11:07:35 +0000 | [diff] [blame] | 2995 | /* return immediately since reset is imminent */ |
| 2996 | return; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 2997 | } |
| 2998 | } |
| 2999 | |
| 3000 | /* Cause software interrupt to ensure rx ring is cleaned */ |
Alexander Duyck | 7a6ea55 | 2008-08-26 04:25:03 -0700 | [diff] [blame] | 3001 | if (adapter->msix_entries) { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3002 | u32 eics = 0; |
| 3003 | for (i = 0; i < adapter->num_q_vectors; i++) { |
| 3004 | struct igb_q_vector *q_vector = adapter->q_vector[i]; |
| 3005 | eics |= q_vector->eims_value; |
| 3006 | } |
Alexander Duyck | 7a6ea55 | 2008-08-26 04:25:03 -0700 | [diff] [blame] | 3007 | wr32(E1000_EICS, eics); |
| 3008 | } else { |
| 3009 | wr32(E1000_ICS, E1000_ICS_RXDMT0); |
| 3010 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3011 | |
| 3012 | /* Force detection of hung controller every watchdog period */ |
| 3013 | tx_ring->detect_tx_hung = true; |
| 3014 | |
| 3015 | /* Reset the timer */ |
| 3016 | if (!test_bit(__IGB_DOWN, &adapter->state)) |
| 3017 | mod_timer(&adapter->watchdog_timer, |
| 3018 | round_jiffies(jiffies + 2 * HZ)); |
| 3019 | } |
| 3020 | |
| 3021 | enum latency_range { |
| 3022 | lowest_latency = 0, |
| 3023 | low_latency = 1, |
| 3024 | bulk_latency = 2, |
| 3025 | latency_invalid = 255 |
| 3026 | }; |
| 3027 | |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 3028 | /** |
| 3029 | * igb_update_ring_itr - update the dynamic ITR value based on packet size |
| 3030 | * |
| 3031 | * Stores a new ITR value based on strictly on packet size. This |
| 3032 | * algorithm is less sophisticated than that used in igb_update_itr, |
| 3033 | * due to the difficulty of synchronizing statistics across multiple |
| 3034 | * receive rings. The divisors and thresholds used by this fuction |
| 3035 | * were determined based on theoretical maximum wire speed and testing |
| 3036 | * data, in order to minimize response time while increasing bulk |
| 3037 | * throughput. |
| 3038 | * This functionality is controlled by the InterruptThrottleRate module |
| 3039 | * parameter (see igb_param.c) |
| 3040 | * NOTE: This function is called only when operating in a multiqueue |
| 3041 | * receive environment. |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3042 | * @q_vector: pointer to q_vector |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 3043 | **/ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3044 | static void igb_update_ring_itr(struct igb_q_vector *q_vector) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3045 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3046 | int new_val = q_vector->itr_val; |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 3047 | int avg_wire_size = 0; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3048 | struct igb_adapter *adapter = q_vector->adapter; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3049 | |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 3050 | /* For non-gigabit speeds, just fix the interrupt rate at 4000 |
| 3051 | * ints/sec - ITR timer value of 120 ticks. |
| 3052 | */ |
| 3053 | if (adapter->link_speed != SPEED_1000) { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3054 | new_val = 976; |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 3055 | goto set_itr_val; |
| 3056 | } |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3057 | |
| 3058 | if (q_vector->rx_ring && q_vector->rx_ring->total_packets) { |
| 3059 | struct igb_ring *ring = q_vector->rx_ring; |
| 3060 | avg_wire_size = ring->total_bytes / ring->total_packets; |
| 3061 | } |
| 3062 | |
| 3063 | if (q_vector->tx_ring && q_vector->tx_ring->total_packets) { |
| 3064 | struct igb_ring *ring = q_vector->tx_ring; |
| 3065 | avg_wire_size = max_t(u32, avg_wire_size, |
| 3066 | (ring->total_bytes / |
| 3067 | ring->total_packets)); |
| 3068 | } |
| 3069 | |
| 3070 | /* if avg_wire_size isn't set no work was done */ |
| 3071 | if (!avg_wire_size) |
| 3072 | goto clear_counts; |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 3073 | |
| 3074 | /* Add 24 bytes to size to account for CRC, preamble, and gap */ |
| 3075 | avg_wire_size += 24; |
| 3076 | |
| 3077 | /* Don't starve jumbo frames */ |
| 3078 | avg_wire_size = min(avg_wire_size, 3000); |
| 3079 | |
| 3080 | /* Give a little boost to mid-size frames */ |
| 3081 | if ((avg_wire_size > 300) && (avg_wire_size < 1200)) |
| 3082 | new_val = avg_wire_size / 3; |
| 3083 | else |
| 3084 | new_val = avg_wire_size / 2; |
| 3085 | |
| 3086 | set_itr_val: |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3087 | if (new_val != q_vector->itr_val) { |
| 3088 | q_vector->itr_val = new_val; |
| 3089 | q_vector->set_itr = 1; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3090 | } |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 3091 | clear_counts: |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3092 | if (q_vector->rx_ring) { |
| 3093 | q_vector->rx_ring->total_bytes = 0; |
| 3094 | q_vector->rx_ring->total_packets = 0; |
| 3095 | } |
| 3096 | if (q_vector->tx_ring) { |
| 3097 | q_vector->tx_ring->total_bytes = 0; |
| 3098 | q_vector->tx_ring->total_packets = 0; |
| 3099 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3100 | } |
| 3101 | |
| 3102 | /** |
| 3103 | * igb_update_itr - update the dynamic ITR value based on statistics |
| 3104 | * Stores a new ITR value based on packets and byte |
| 3105 | * counts during the last interrupt. The advantage of per interrupt |
| 3106 | * computation is faster updates and more accurate ITR for the current |
| 3107 | * traffic pattern. Constants in this function were computed |
| 3108 | * based on theoretical maximum wire speed and thresholds were set based |
| 3109 | * on testing data as well as attempting to minimize response time |
| 3110 | * while increasing bulk throughput. |
| 3111 | * this functionality is controlled by the InterruptThrottleRate module |
| 3112 | * parameter (see igb_param.c) |
| 3113 | * NOTE: These calculations are only valid when operating in a single- |
| 3114 | * queue environment. |
| 3115 | * @adapter: pointer to adapter |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3116 | * @itr_setting: current q_vector->itr_val |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3117 | * @packets: the number of packets during this measurement interval |
| 3118 | * @bytes: the number of bytes during this measurement interval |
| 3119 | **/ |
| 3120 | static unsigned int igb_update_itr(struct igb_adapter *adapter, u16 itr_setting, |
| 3121 | int packets, int bytes) |
| 3122 | { |
| 3123 | unsigned int retval = itr_setting; |
| 3124 | |
| 3125 | if (packets == 0) |
| 3126 | goto update_itr_done; |
| 3127 | |
| 3128 | switch (itr_setting) { |
| 3129 | case lowest_latency: |
| 3130 | /* handle TSO and jumbo frames */ |
| 3131 | if (bytes/packets > 8000) |
| 3132 | retval = bulk_latency; |
| 3133 | else if ((packets < 5) && (bytes > 512)) |
| 3134 | retval = low_latency; |
| 3135 | break; |
| 3136 | case low_latency: /* 50 usec aka 20000 ints/s */ |
| 3137 | if (bytes > 10000) { |
| 3138 | /* this if handles the TSO accounting */ |
| 3139 | if (bytes/packets > 8000) { |
| 3140 | retval = bulk_latency; |
| 3141 | } else if ((packets < 10) || ((bytes/packets) > 1200)) { |
| 3142 | retval = bulk_latency; |
| 3143 | } else if ((packets > 35)) { |
| 3144 | retval = lowest_latency; |
| 3145 | } |
| 3146 | } else if (bytes/packets > 2000) { |
| 3147 | retval = bulk_latency; |
| 3148 | } else if (packets <= 2 && bytes < 512) { |
| 3149 | retval = lowest_latency; |
| 3150 | } |
| 3151 | break; |
| 3152 | case bulk_latency: /* 250 usec aka 4000 ints/s */ |
| 3153 | if (bytes > 25000) { |
| 3154 | if (packets > 35) |
| 3155 | retval = low_latency; |
Alexander Duyck | 1e5c3d2 | 2009-02-12 18:17:21 +0000 | [diff] [blame] | 3156 | } else if (bytes < 1500) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3157 | retval = low_latency; |
| 3158 | } |
| 3159 | break; |
| 3160 | } |
| 3161 | |
| 3162 | update_itr_done: |
| 3163 | return retval; |
| 3164 | } |
| 3165 | |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 3166 | static void igb_set_itr(struct igb_adapter *adapter) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3167 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3168 | struct igb_q_vector *q_vector = adapter->q_vector[0]; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3169 | u16 current_itr; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3170 | u32 new_itr = q_vector->itr_val; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3171 | |
| 3172 | /* for non-gigabit speeds, just fix the interrupt rate at 4000 */ |
| 3173 | if (adapter->link_speed != SPEED_1000) { |
| 3174 | current_itr = 0; |
| 3175 | new_itr = 4000; |
| 3176 | goto set_itr_now; |
| 3177 | } |
| 3178 | |
| 3179 | adapter->rx_itr = igb_update_itr(adapter, |
| 3180 | adapter->rx_itr, |
| 3181 | adapter->rx_ring->total_packets, |
| 3182 | adapter->rx_ring->total_bytes); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3183 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3184 | adapter->tx_itr = igb_update_itr(adapter, |
| 3185 | adapter->tx_itr, |
| 3186 | adapter->tx_ring->total_packets, |
| 3187 | adapter->tx_ring->total_bytes); |
| 3188 | current_itr = max(adapter->rx_itr, adapter->tx_itr); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3189 | |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 3190 | /* conservative mode (itr 3) eliminates the lowest_latency setting */ |
Alexander Duyck | 4fc82ad | 2009-10-27 23:45:42 +0000 | [diff] [blame] | 3191 | if (adapter->rx_itr_setting == 3 && current_itr == lowest_latency) |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 3192 | current_itr = low_latency; |
| 3193 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3194 | switch (current_itr) { |
| 3195 | /* counts and packets in update_itr are dependent on these numbers */ |
| 3196 | case lowest_latency: |
Alexander Duyck | 78b1f607 | 2009-04-23 11:20:29 +0000 | [diff] [blame] | 3197 | new_itr = 56; /* aka 70,000 ints/sec */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3198 | break; |
| 3199 | case low_latency: |
Alexander Duyck | 78b1f607 | 2009-04-23 11:20:29 +0000 | [diff] [blame] | 3200 | new_itr = 196; /* aka 20,000 ints/sec */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3201 | break; |
| 3202 | case bulk_latency: |
Alexander Duyck | 78b1f607 | 2009-04-23 11:20:29 +0000 | [diff] [blame] | 3203 | new_itr = 980; /* aka 4,000 ints/sec */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3204 | break; |
| 3205 | default: |
| 3206 | break; |
| 3207 | } |
| 3208 | |
| 3209 | set_itr_now: |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 3210 | adapter->rx_ring->total_bytes = 0; |
| 3211 | adapter->rx_ring->total_packets = 0; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3212 | adapter->tx_ring->total_bytes = 0; |
| 3213 | adapter->tx_ring->total_packets = 0; |
Alexander Duyck | 6eb5a7f | 2008-07-08 15:14:44 -0700 | [diff] [blame] | 3214 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3215 | if (new_itr != q_vector->itr_val) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3216 | /* this attempts to bias the interrupt rate towards Bulk |
| 3217 | * by adding intermediate steps when interrupt rate is |
| 3218 | * increasing */ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3219 | new_itr = new_itr > q_vector->itr_val ? |
| 3220 | max((new_itr * q_vector->itr_val) / |
| 3221 | (new_itr + (q_vector->itr_val >> 2)), |
| 3222 | new_itr) : |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3223 | new_itr; |
| 3224 | /* Don't write the value here; it resets the adapter's |
| 3225 | * internal timer, and causes us to delay far longer than |
| 3226 | * we should between interrupts. Instead, we write the ITR |
| 3227 | * value at the beginning of the next interrupt so the timing |
| 3228 | * ends up being correct. |
| 3229 | */ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3230 | q_vector->itr_val = new_itr; |
| 3231 | q_vector->set_itr = 1; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3232 | } |
| 3233 | |
| 3234 | return; |
| 3235 | } |
| 3236 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3237 | #define IGB_TX_FLAGS_CSUM 0x00000001 |
| 3238 | #define IGB_TX_FLAGS_VLAN 0x00000002 |
| 3239 | #define IGB_TX_FLAGS_TSO 0x00000004 |
| 3240 | #define IGB_TX_FLAGS_IPV4 0x00000008 |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 3241 | #define IGB_TX_FLAGS_TSTAMP 0x00000010 |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3242 | #define IGB_TX_FLAGS_VLAN_MASK 0xffff0000 |
| 3243 | #define IGB_TX_FLAGS_VLAN_SHIFT 16 |
| 3244 | |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 3245 | static inline int igb_tso_adv(struct igb_ring *tx_ring, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3246 | struct sk_buff *skb, u32 tx_flags, u8 *hdr_len) |
| 3247 | { |
| 3248 | struct e1000_adv_tx_context_desc *context_desc; |
| 3249 | unsigned int i; |
| 3250 | int err; |
| 3251 | struct igb_buffer *buffer_info; |
| 3252 | u32 info = 0, tu_cmd = 0; |
| 3253 | u32 mss_l4len_idx, l4len; |
| 3254 | *hdr_len = 0; |
| 3255 | |
| 3256 | if (skb_header_cloned(skb)) { |
| 3257 | err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); |
| 3258 | if (err) |
| 3259 | return err; |
| 3260 | } |
| 3261 | |
| 3262 | l4len = tcp_hdrlen(skb); |
| 3263 | *hdr_len += l4len; |
| 3264 | |
| 3265 | if (skb->protocol == htons(ETH_P_IP)) { |
| 3266 | struct iphdr *iph = ip_hdr(skb); |
| 3267 | iph->tot_len = 0; |
| 3268 | iph->check = 0; |
| 3269 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, |
| 3270 | iph->daddr, 0, |
| 3271 | IPPROTO_TCP, |
| 3272 | 0); |
| 3273 | } else if (skb_shinfo(skb)->gso_type == SKB_GSO_TCPV6) { |
| 3274 | ipv6_hdr(skb)->payload_len = 0; |
| 3275 | tcp_hdr(skb)->check = ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, |
| 3276 | &ipv6_hdr(skb)->daddr, |
| 3277 | 0, IPPROTO_TCP, 0); |
| 3278 | } |
| 3279 | |
| 3280 | i = tx_ring->next_to_use; |
| 3281 | |
| 3282 | buffer_info = &tx_ring->buffer_info[i]; |
| 3283 | context_desc = E1000_TX_CTXTDESC_ADV(*tx_ring, i); |
| 3284 | /* VLAN MACLEN IPLEN */ |
| 3285 | if (tx_flags & IGB_TX_FLAGS_VLAN) |
| 3286 | info |= (tx_flags & IGB_TX_FLAGS_VLAN_MASK); |
| 3287 | info |= (skb_network_offset(skb) << E1000_ADVTXD_MACLEN_SHIFT); |
| 3288 | *hdr_len += skb_network_offset(skb); |
| 3289 | info |= skb_network_header_len(skb); |
| 3290 | *hdr_len += skb_network_header_len(skb); |
| 3291 | context_desc->vlan_macip_lens = cpu_to_le32(info); |
| 3292 | |
| 3293 | /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */ |
| 3294 | tu_cmd |= (E1000_TXD_CMD_DEXT | E1000_ADVTXD_DTYP_CTXT); |
| 3295 | |
| 3296 | if (skb->protocol == htons(ETH_P_IP)) |
| 3297 | tu_cmd |= E1000_ADVTXD_TUCMD_IPV4; |
| 3298 | tu_cmd |= E1000_ADVTXD_TUCMD_L4T_TCP; |
| 3299 | |
| 3300 | context_desc->type_tucmd_mlhl = cpu_to_le32(tu_cmd); |
| 3301 | |
| 3302 | /* MSS L4LEN IDX */ |
| 3303 | mss_l4len_idx = (skb_shinfo(skb)->gso_size << E1000_ADVTXD_MSS_SHIFT); |
| 3304 | mss_l4len_idx |= (l4len << E1000_ADVTXD_L4LEN_SHIFT); |
| 3305 | |
Alexander Duyck | 73cd78f | 2009-02-12 18:16:59 +0000 | [diff] [blame] | 3306 | /* For 82575, context index must be unique per ring. */ |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 3307 | if (tx_ring->flags & IGB_RING_FLAG_TX_CTX_IDX) |
| 3308 | mss_l4len_idx |= tx_ring->reg_idx << 4; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3309 | |
| 3310 | context_desc->mss_l4len_idx = cpu_to_le32(mss_l4len_idx); |
| 3311 | context_desc->seqnum_seed = 0; |
| 3312 | |
| 3313 | buffer_info->time_stamp = jiffies; |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 3314 | buffer_info->next_to_watch = i; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3315 | buffer_info->dma = 0; |
| 3316 | i++; |
| 3317 | if (i == tx_ring->count) |
| 3318 | i = 0; |
| 3319 | |
| 3320 | tx_ring->next_to_use = i; |
| 3321 | |
| 3322 | return true; |
| 3323 | } |
| 3324 | |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 3325 | static inline bool igb_tx_csum_adv(struct igb_ring *tx_ring, |
| 3326 | struct sk_buff *skb, u32 tx_flags) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3327 | { |
| 3328 | struct e1000_adv_tx_context_desc *context_desc; |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 3329 | struct pci_dev *pdev = tx_ring->pdev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3330 | struct igb_buffer *buffer_info; |
| 3331 | u32 info = 0, tu_cmd = 0; |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 3332 | unsigned int i; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3333 | |
| 3334 | if ((skb->ip_summed == CHECKSUM_PARTIAL) || |
| 3335 | (tx_flags & IGB_TX_FLAGS_VLAN)) { |
| 3336 | i = tx_ring->next_to_use; |
| 3337 | buffer_info = &tx_ring->buffer_info[i]; |
| 3338 | context_desc = E1000_TX_CTXTDESC_ADV(*tx_ring, i); |
| 3339 | |
| 3340 | if (tx_flags & IGB_TX_FLAGS_VLAN) |
| 3341 | info |= (tx_flags & IGB_TX_FLAGS_VLAN_MASK); |
| 3342 | info |= (skb_network_offset(skb) << E1000_ADVTXD_MACLEN_SHIFT); |
| 3343 | if (skb->ip_summed == CHECKSUM_PARTIAL) |
| 3344 | info |= skb_network_header_len(skb); |
| 3345 | |
| 3346 | context_desc->vlan_macip_lens = cpu_to_le32(info); |
| 3347 | |
| 3348 | tu_cmd |= (E1000_TXD_CMD_DEXT | E1000_ADVTXD_DTYP_CTXT); |
| 3349 | |
| 3350 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
Arthur Jones | fa4a7ef | 2009-03-21 16:55:07 -0700 | [diff] [blame] | 3351 | __be16 protocol; |
| 3352 | |
| 3353 | if (skb->protocol == cpu_to_be16(ETH_P_8021Q)) { |
| 3354 | const struct vlan_ethhdr *vhdr = |
| 3355 | (const struct vlan_ethhdr*)skb->data; |
| 3356 | |
| 3357 | protocol = vhdr->h_vlan_encapsulated_proto; |
| 3358 | } else { |
| 3359 | protocol = skb->protocol; |
| 3360 | } |
| 3361 | |
| 3362 | switch (protocol) { |
Harvey Harrison | 09640e6 | 2009-02-01 00:45:17 -0800 | [diff] [blame] | 3363 | case cpu_to_be16(ETH_P_IP): |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3364 | tu_cmd |= E1000_ADVTXD_TUCMD_IPV4; |
Mitch Williams | 44b0cda | 2008-03-07 10:32:13 -0800 | [diff] [blame] | 3365 | if (ip_hdr(skb)->protocol == IPPROTO_TCP) |
| 3366 | tu_cmd |= E1000_ADVTXD_TUCMD_L4T_TCP; |
Jesse Brandeburg | b947356 | 2009-04-27 22:36:13 +0000 | [diff] [blame] | 3367 | else if (ip_hdr(skb)->protocol == IPPROTO_SCTP) |
| 3368 | tu_cmd |= E1000_ADVTXD_TUCMD_L4T_SCTP; |
Mitch Williams | 44b0cda | 2008-03-07 10:32:13 -0800 | [diff] [blame] | 3369 | break; |
Harvey Harrison | 09640e6 | 2009-02-01 00:45:17 -0800 | [diff] [blame] | 3370 | case cpu_to_be16(ETH_P_IPV6): |
Mitch Williams | 44b0cda | 2008-03-07 10:32:13 -0800 | [diff] [blame] | 3371 | /* XXX what about other V6 headers?? */ |
| 3372 | if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) |
| 3373 | tu_cmd |= E1000_ADVTXD_TUCMD_L4T_TCP; |
Jesse Brandeburg | b947356 | 2009-04-27 22:36:13 +0000 | [diff] [blame] | 3374 | else if (ipv6_hdr(skb)->nexthdr == IPPROTO_SCTP) |
| 3375 | tu_cmd |= E1000_ADVTXD_TUCMD_L4T_SCTP; |
Mitch Williams | 44b0cda | 2008-03-07 10:32:13 -0800 | [diff] [blame] | 3376 | break; |
| 3377 | default: |
| 3378 | if (unlikely(net_ratelimit())) |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 3379 | dev_warn(&pdev->dev, |
Mitch Williams | 44b0cda | 2008-03-07 10:32:13 -0800 | [diff] [blame] | 3380 | "partial checksum but proto=%x!\n", |
| 3381 | skb->protocol); |
| 3382 | break; |
| 3383 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3384 | } |
| 3385 | |
| 3386 | context_desc->type_tucmd_mlhl = cpu_to_le32(tu_cmd); |
| 3387 | context_desc->seqnum_seed = 0; |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 3388 | if (tx_ring->flags & IGB_RING_FLAG_TX_CTX_IDX) |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 3389 | context_desc->mss_l4len_idx = |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 3390 | cpu_to_le32(tx_ring->reg_idx << 4); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3391 | |
| 3392 | buffer_info->time_stamp = jiffies; |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 3393 | buffer_info->next_to_watch = i; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3394 | buffer_info->dma = 0; |
| 3395 | |
| 3396 | i++; |
| 3397 | if (i == tx_ring->count) |
| 3398 | i = 0; |
| 3399 | tx_ring->next_to_use = i; |
| 3400 | |
| 3401 | return true; |
| 3402 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3403 | return false; |
| 3404 | } |
| 3405 | |
| 3406 | #define IGB_MAX_TXD_PWR 16 |
| 3407 | #define IGB_MAX_DATA_PER_TXD (1<<IGB_MAX_TXD_PWR) |
| 3408 | |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 3409 | static inline int igb_tx_map_adv(struct igb_ring *tx_ring, struct sk_buff *skb, |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 3410 | unsigned int first) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3411 | { |
| 3412 | struct igb_buffer *buffer_info; |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 3413 | struct pci_dev *pdev = tx_ring->pdev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3414 | unsigned int len = skb_headlen(skb); |
| 3415 | unsigned int count = 0, i; |
| 3416 | unsigned int f; |
Alexander Duyck | 65689fe | 2009-03-20 00:17:43 +0000 | [diff] [blame] | 3417 | dma_addr_t *map; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3418 | |
| 3419 | i = tx_ring->next_to_use; |
| 3420 | |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 3421 | if (skb_dma_map(&pdev->dev, skb, DMA_TO_DEVICE)) { |
| 3422 | dev_err(&pdev->dev, "TX DMA map failed\n"); |
Alexander Duyck | 65689fe | 2009-03-20 00:17:43 +0000 | [diff] [blame] | 3423 | return 0; |
| 3424 | } |
| 3425 | |
| 3426 | map = skb_shinfo(skb)->dma_maps; |
| 3427 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3428 | buffer_info = &tx_ring->buffer_info[i]; |
| 3429 | BUG_ON(len >= IGB_MAX_DATA_PER_TXD); |
| 3430 | buffer_info->length = len; |
| 3431 | /* set time_stamp *before* dma to help avoid a possible race */ |
| 3432 | buffer_info->time_stamp = jiffies; |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 3433 | buffer_info->next_to_watch = i; |
Eric Dumazet | 042a53a | 2009-06-05 04:04:16 +0000 | [diff] [blame] | 3434 | buffer_info->dma = skb_shinfo(skb)->dma_head; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3435 | |
| 3436 | for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) { |
| 3437 | struct skb_frag_struct *frag; |
| 3438 | |
Alexander Duyck | 65689fe | 2009-03-20 00:17:43 +0000 | [diff] [blame] | 3439 | i++; |
| 3440 | if (i == tx_ring->count) |
| 3441 | i = 0; |
| 3442 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3443 | frag = &skb_shinfo(skb)->frags[f]; |
| 3444 | len = frag->size; |
| 3445 | |
| 3446 | buffer_info = &tx_ring->buffer_info[i]; |
| 3447 | BUG_ON(len >= IGB_MAX_DATA_PER_TXD); |
| 3448 | buffer_info->length = len; |
| 3449 | buffer_info->time_stamp = jiffies; |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 3450 | buffer_info->next_to_watch = i; |
Alexander Duyck | 65689fe | 2009-03-20 00:17:43 +0000 | [diff] [blame] | 3451 | buffer_info->dma = map[count]; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3452 | count++; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3453 | } |
| 3454 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3455 | tx_ring->buffer_info[i].skb = skb; |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 3456 | tx_ring->buffer_info[first].next_to_watch = i; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3457 | |
Eric Dumazet | 042a53a | 2009-06-05 04:04:16 +0000 | [diff] [blame] | 3458 | return count + 1; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3459 | } |
| 3460 | |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 3461 | static inline void igb_tx_queue_adv(struct igb_ring *tx_ring, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3462 | int tx_flags, int count, u32 paylen, |
| 3463 | u8 hdr_len) |
| 3464 | { |
| 3465 | union e1000_adv_tx_desc *tx_desc = NULL; |
| 3466 | struct igb_buffer *buffer_info; |
| 3467 | u32 olinfo_status = 0, cmd_type_len; |
| 3468 | unsigned int i; |
| 3469 | |
| 3470 | cmd_type_len = (E1000_ADVTXD_DTYP_DATA | E1000_ADVTXD_DCMD_IFCS | |
| 3471 | E1000_ADVTXD_DCMD_DEXT); |
| 3472 | |
| 3473 | if (tx_flags & IGB_TX_FLAGS_VLAN) |
| 3474 | cmd_type_len |= E1000_ADVTXD_DCMD_VLE; |
| 3475 | |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 3476 | if (tx_flags & IGB_TX_FLAGS_TSTAMP) |
| 3477 | cmd_type_len |= E1000_ADVTXD_MAC_TSTAMP; |
| 3478 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3479 | if (tx_flags & IGB_TX_FLAGS_TSO) { |
| 3480 | cmd_type_len |= E1000_ADVTXD_DCMD_TSE; |
| 3481 | |
| 3482 | /* insert tcp checksum */ |
| 3483 | olinfo_status |= E1000_TXD_POPTS_TXSM << 8; |
| 3484 | |
| 3485 | /* insert ip checksum */ |
| 3486 | if (tx_flags & IGB_TX_FLAGS_IPV4) |
| 3487 | olinfo_status |= E1000_TXD_POPTS_IXSM << 8; |
| 3488 | |
| 3489 | } else if (tx_flags & IGB_TX_FLAGS_CSUM) { |
| 3490 | olinfo_status |= E1000_TXD_POPTS_TXSM << 8; |
| 3491 | } |
| 3492 | |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 3493 | if ((tx_ring->flags & IGB_RING_FLAG_TX_CTX_IDX) && |
| 3494 | (tx_flags & (IGB_TX_FLAGS_CSUM | |
| 3495 | IGB_TX_FLAGS_TSO | |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 3496 | IGB_TX_FLAGS_VLAN))) |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 3497 | olinfo_status |= tx_ring->reg_idx << 4; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3498 | |
| 3499 | olinfo_status |= ((paylen - hdr_len) << E1000_ADVTXD_PAYLEN_SHIFT); |
| 3500 | |
| 3501 | i = tx_ring->next_to_use; |
| 3502 | while (count--) { |
| 3503 | buffer_info = &tx_ring->buffer_info[i]; |
| 3504 | tx_desc = E1000_TX_DESC_ADV(*tx_ring, i); |
| 3505 | tx_desc->read.buffer_addr = cpu_to_le64(buffer_info->dma); |
| 3506 | tx_desc->read.cmd_type_len = |
| 3507 | cpu_to_le32(cmd_type_len | buffer_info->length); |
| 3508 | tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status); |
| 3509 | i++; |
| 3510 | if (i == tx_ring->count) |
| 3511 | i = 0; |
| 3512 | } |
| 3513 | |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 3514 | tx_desc->read.cmd_type_len |= cpu_to_le32(IGB_ADVTXD_DCMD); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3515 | /* Force memory writes to complete before letting h/w |
| 3516 | * know there are new descriptors to fetch. (Only |
| 3517 | * applicable for weak-ordered memory model archs, |
| 3518 | * such as IA-64). */ |
| 3519 | wmb(); |
| 3520 | |
| 3521 | tx_ring->next_to_use = i; |
Alexander Duyck | fce99e3 | 2009-10-27 15:51:27 +0000 | [diff] [blame] | 3522 | writel(i, tx_ring->tail); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3523 | /* we need this if more than one processor can write to our tail |
| 3524 | * at a time, it syncronizes IO on IA64/Altix systems */ |
| 3525 | mmiowb(); |
| 3526 | } |
| 3527 | |
Alexander Duyck | e694e96 | 2009-10-27 15:53:06 +0000 | [diff] [blame] | 3528 | static int __igb_maybe_stop_tx(struct igb_ring *tx_ring, int size) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3529 | { |
Alexander Duyck | e694e96 | 2009-10-27 15:53:06 +0000 | [diff] [blame] | 3530 | struct net_device *netdev = tx_ring->netdev; |
| 3531 | |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 3532 | netif_stop_subqueue(netdev, tx_ring->queue_index); |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 3533 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3534 | /* Herbert's original patch had: |
| 3535 | * smp_mb__after_netif_stop_queue(); |
| 3536 | * but since that doesn't exist yet, just open code it. */ |
| 3537 | smp_mb(); |
| 3538 | |
| 3539 | /* We need to check again in a case another CPU has just |
| 3540 | * made room available. */ |
Alexander Duyck | c493ea4 | 2009-03-20 00:16:50 +0000 | [diff] [blame] | 3541 | if (igb_desc_unused(tx_ring) < size) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3542 | return -EBUSY; |
| 3543 | |
| 3544 | /* A reprieve! */ |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 3545 | netif_wake_subqueue(netdev, tx_ring->queue_index); |
Alexander Duyck | 04a5fcaa | 2009-10-27 15:52:27 +0000 | [diff] [blame] | 3546 | tx_ring->tx_stats.restart_queue++; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3547 | return 0; |
| 3548 | } |
| 3549 | |
Alexander Duyck | e694e96 | 2009-10-27 15:53:06 +0000 | [diff] [blame] | 3550 | static int igb_maybe_stop_tx(struct igb_ring *tx_ring, int size) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3551 | { |
Alexander Duyck | c493ea4 | 2009-03-20 00:16:50 +0000 | [diff] [blame] | 3552 | if (igb_desc_unused(tx_ring) >= size) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3553 | return 0; |
Alexander Duyck | e694e96 | 2009-10-27 15:53:06 +0000 | [diff] [blame] | 3554 | return __igb_maybe_stop_tx(tx_ring, size); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3555 | } |
| 3556 | |
Alexander Duyck | b1a436c | 2009-10-27 15:54:43 +0000 | [diff] [blame] | 3557 | netdev_tx_t igb_xmit_frame_ring_adv(struct sk_buff *skb, |
| 3558 | struct igb_ring *tx_ring) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3559 | { |
Alexander Duyck | e694e96 | 2009-10-27 15:53:06 +0000 | [diff] [blame] | 3560 | struct igb_adapter *adapter = netdev_priv(tx_ring->netdev); |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 3561 | unsigned int first; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3562 | unsigned int tx_flags = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3563 | u8 hdr_len = 0; |
Alexander Duyck | 65689fe | 2009-03-20 00:17:43 +0000 | [diff] [blame] | 3564 | int count = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3565 | int tso = 0; |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 3566 | union skb_shared_tx *shtx = skb_tx(skb); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3567 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3568 | /* need: 1 descriptor per page, |
| 3569 | * + 2 desc gap to keep tail from touching head, |
| 3570 | * + 1 desc for skb->data, |
| 3571 | * + 1 desc for context descriptor, |
| 3572 | * otherwise try next time */ |
Alexander Duyck | e694e96 | 2009-10-27 15:53:06 +0000 | [diff] [blame] | 3573 | if (igb_maybe_stop_tx(tx_ring, skb_shinfo(skb)->nr_frags + 4)) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3574 | /* this is a hard error */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3575 | return NETDEV_TX_BUSY; |
| 3576 | } |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 3577 | |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 3578 | if (unlikely(shtx->hardware)) { |
| 3579 | shtx->in_progress = 1; |
| 3580 | tx_flags |= IGB_TX_FLAGS_TSTAMP; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 3581 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3582 | |
| 3583 | if (adapter->vlgrp && vlan_tx_tag_present(skb)) { |
| 3584 | tx_flags |= IGB_TX_FLAGS_VLAN; |
| 3585 | tx_flags |= (vlan_tx_tag_get(skb) << IGB_TX_FLAGS_VLAN_SHIFT); |
| 3586 | } |
| 3587 | |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 3588 | if (skb->protocol == htons(ETH_P_IP)) |
| 3589 | tx_flags |= IGB_TX_FLAGS_IPV4; |
| 3590 | |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 3591 | first = tx_ring->next_to_use; |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 3592 | if (skb_is_gso(skb)) { |
| 3593 | tso = igb_tso_adv(tx_ring, skb, tx_flags, &hdr_len); |
| 3594 | if (tso < 0) { |
| 3595 | dev_kfree_skb_any(skb); |
| 3596 | return NETDEV_TX_OK; |
| 3597 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3598 | } |
| 3599 | |
| 3600 | if (tso) |
| 3601 | tx_flags |= IGB_TX_FLAGS_TSO; |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 3602 | else if (igb_tx_csum_adv(tx_ring, skb, tx_flags) && |
Alexander Duyck | bc1cbd3 | 2009-02-13 14:45:17 +0000 | [diff] [blame] | 3603 | (skb->ip_summed == CHECKSUM_PARTIAL)) |
| 3604 | tx_flags |= IGB_TX_FLAGS_CSUM; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3605 | |
Alexander Duyck | 65689fe | 2009-03-20 00:17:43 +0000 | [diff] [blame] | 3606 | /* |
| 3607 | * count reflects descriptors mapped, if 0 then mapping error |
| 3608 | * has occured and we need to rewind the descriptor queue |
| 3609 | */ |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 3610 | count = igb_tx_map_adv(tx_ring, skb, first); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3611 | |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 3612 | if (!count) { |
Alexander Duyck | 65689fe | 2009-03-20 00:17:43 +0000 | [diff] [blame] | 3613 | dev_kfree_skb_any(skb); |
| 3614 | tx_ring->buffer_info[first].time_stamp = 0; |
| 3615 | tx_ring->next_to_use = first; |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 3616 | return NETDEV_TX_OK; |
Alexander Duyck | 65689fe | 2009-03-20 00:17:43 +0000 | [diff] [blame] | 3617 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3618 | |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 3619 | igb_tx_queue_adv(tx_ring, tx_flags, count, skb->len, hdr_len); |
| 3620 | |
| 3621 | /* Make sure there is space in the ring for the next send. */ |
Alexander Duyck | e694e96 | 2009-10-27 15:53:06 +0000 | [diff] [blame] | 3622 | igb_maybe_stop_tx(tx_ring, MAX_SKB_FRAGS + 4); |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 3623 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3624 | return NETDEV_TX_OK; |
| 3625 | } |
| 3626 | |
Stephen Hemminger | 3b29a56 | 2009-08-31 19:50:55 +0000 | [diff] [blame] | 3627 | static netdev_tx_t igb_xmit_frame_adv(struct sk_buff *skb, |
| 3628 | struct net_device *netdev) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3629 | { |
| 3630 | struct igb_adapter *adapter = netdev_priv(netdev); |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 3631 | struct igb_ring *tx_ring; |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 3632 | int r_idx = 0; |
Alexander Duyck | b1a436c | 2009-10-27 15:54:43 +0000 | [diff] [blame] | 3633 | |
| 3634 | if (test_bit(__IGB_DOWN, &adapter->state)) { |
| 3635 | dev_kfree_skb_any(skb); |
| 3636 | return NETDEV_TX_OK; |
| 3637 | } |
| 3638 | |
| 3639 | if (skb->len <= 0) { |
| 3640 | dev_kfree_skb_any(skb); |
| 3641 | return NETDEV_TX_OK; |
| 3642 | } |
| 3643 | |
Alexander Duyck | 1bfaf07 | 2009-02-19 20:39:23 -0800 | [diff] [blame] | 3644 | r_idx = skb->queue_mapping & (IGB_ABS_MAX_TX_QUEUES - 1); |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 3645 | tx_ring = adapter->multi_tx_table[r_idx]; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3646 | |
| 3647 | /* This goes back to the question of how to logically map a tx queue |
| 3648 | * to a flow. Right now, performance is impacted slightly negatively |
| 3649 | * if using multiple tx queues. If the stack breaks away from a |
| 3650 | * single qdisc implementation, we can look at this again. */ |
Alexander Duyck | e694e96 | 2009-10-27 15:53:06 +0000 | [diff] [blame] | 3651 | return igb_xmit_frame_ring_adv(skb, tx_ring); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3652 | } |
| 3653 | |
| 3654 | /** |
| 3655 | * igb_tx_timeout - Respond to a Tx Hang |
| 3656 | * @netdev: network interface device structure |
| 3657 | **/ |
| 3658 | static void igb_tx_timeout(struct net_device *netdev) |
| 3659 | { |
| 3660 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 3661 | struct e1000_hw *hw = &adapter->hw; |
| 3662 | |
| 3663 | /* Do the reset outside of interrupt context */ |
| 3664 | adapter->tx_timeout_count++; |
| 3665 | schedule_work(&adapter->reset_task); |
Alexander Duyck | 265de40 | 2009-02-06 23:22:52 +0000 | [diff] [blame] | 3666 | wr32(E1000_EICS, |
| 3667 | (adapter->eims_enable_mask & ~adapter->eims_other)); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3668 | } |
| 3669 | |
| 3670 | static void igb_reset_task(struct work_struct *work) |
| 3671 | { |
| 3672 | struct igb_adapter *adapter; |
| 3673 | adapter = container_of(work, struct igb_adapter, reset_task); |
| 3674 | |
| 3675 | igb_reinit_locked(adapter); |
| 3676 | } |
| 3677 | |
| 3678 | /** |
| 3679 | * igb_get_stats - Get System Network Statistics |
| 3680 | * @netdev: network interface device structure |
| 3681 | * |
| 3682 | * Returns the address of the device statistics structure. |
| 3683 | * The statistics are actually updated from the timer callback. |
| 3684 | **/ |
Alexander Duyck | 73cd78f | 2009-02-12 18:16:59 +0000 | [diff] [blame] | 3685 | static struct net_device_stats *igb_get_stats(struct net_device *netdev) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3686 | { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3687 | /* only return the current stats */ |
Ajit Khaparde | 8d24e93 | 2009-10-07 02:42:56 +0000 | [diff] [blame] | 3688 | return &netdev->stats; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3689 | } |
| 3690 | |
| 3691 | /** |
| 3692 | * igb_change_mtu - Change the Maximum Transfer Unit |
| 3693 | * @netdev: network interface device structure |
| 3694 | * @new_mtu: new value for maximum frame size |
| 3695 | * |
| 3696 | * Returns 0 on success, negative on failure |
| 3697 | **/ |
| 3698 | static int igb_change_mtu(struct net_device *netdev, int new_mtu) |
| 3699 | { |
| 3700 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 3701 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; |
Alexander Duyck | 4c84485 | 2009-10-27 15:52:07 +0000 | [diff] [blame] | 3702 | u32 rx_buffer_len, i; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3703 | |
| 3704 | if ((max_frame < ETH_ZLEN + ETH_FCS_LEN) || |
| 3705 | (max_frame > MAX_JUMBO_FRAME_SIZE)) { |
| 3706 | dev_err(&adapter->pdev->dev, "Invalid MTU setting\n"); |
| 3707 | return -EINVAL; |
| 3708 | } |
| 3709 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3710 | if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) { |
| 3711 | dev_err(&adapter->pdev->dev, "MTU > 9216 not supported.\n"); |
| 3712 | return -EINVAL; |
| 3713 | } |
| 3714 | |
| 3715 | while (test_and_set_bit(__IGB_RESETTING, &adapter->state)) |
| 3716 | msleep(1); |
Alexander Duyck | 73cd78f | 2009-02-12 18:16:59 +0000 | [diff] [blame] | 3717 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3718 | /* igb_down has a dependency on max_frame_size */ |
| 3719 | adapter->max_frame_size = max_frame; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3720 | /* NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN |
| 3721 | * means we reserve 2 more, this pushes us to allocate from the next |
| 3722 | * larger slab size. |
| 3723 | * i.e. RXBUFFER_2048 --> size-4096 slab |
| 3724 | */ |
| 3725 | |
Alexander Duyck | 7d95b71 | 2009-10-27 15:50:08 +0000 | [diff] [blame] | 3726 | if (max_frame <= IGB_RXBUFFER_1024) |
Alexander Duyck | 4c84485 | 2009-10-27 15:52:07 +0000 | [diff] [blame] | 3727 | rx_buffer_len = IGB_RXBUFFER_1024; |
Alexander Duyck | 6ec43fe | 2009-10-27 15:50:48 +0000 | [diff] [blame] | 3728 | else if (max_frame <= MAXIMUM_ETHERNET_VLAN_SIZE) |
Alexander Duyck | 4c84485 | 2009-10-27 15:52:07 +0000 | [diff] [blame] | 3729 | rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE; |
Alexander Duyck | 6ec43fe | 2009-10-27 15:50:48 +0000 | [diff] [blame] | 3730 | else |
Alexander Duyck | 4c84485 | 2009-10-27 15:52:07 +0000 | [diff] [blame] | 3731 | rx_buffer_len = IGB_RXBUFFER_128; |
| 3732 | |
| 3733 | if (netif_running(netdev)) |
| 3734 | igb_down(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3735 | |
| 3736 | dev_info(&adapter->pdev->dev, "changing MTU from %d to %d\n", |
| 3737 | netdev->mtu, new_mtu); |
| 3738 | netdev->mtu = new_mtu; |
| 3739 | |
Alexander Duyck | 4c84485 | 2009-10-27 15:52:07 +0000 | [diff] [blame] | 3740 | for (i = 0; i < adapter->num_rx_queues; i++) |
| 3741 | adapter->rx_ring[i].rx_buffer_len = rx_buffer_len; |
| 3742 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3743 | if (netif_running(netdev)) |
| 3744 | igb_up(adapter); |
| 3745 | else |
| 3746 | igb_reset(adapter); |
| 3747 | |
| 3748 | clear_bit(__IGB_RESETTING, &adapter->state); |
| 3749 | |
| 3750 | return 0; |
| 3751 | } |
| 3752 | |
| 3753 | /** |
| 3754 | * igb_update_stats - Update the board statistics counters |
| 3755 | * @adapter: board private structure |
| 3756 | **/ |
| 3757 | |
| 3758 | void igb_update_stats(struct igb_adapter *adapter) |
| 3759 | { |
Ajit Khaparde | 8d24e93 | 2009-10-07 02:42:56 +0000 | [diff] [blame] | 3760 | struct net_device *netdev = adapter->netdev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3761 | struct e1000_hw *hw = &adapter->hw; |
| 3762 | struct pci_dev *pdev = adapter->pdev; |
| 3763 | u16 phy_tmp; |
| 3764 | |
| 3765 | #define PHY_IDLE_ERROR_COUNT_MASK 0x00FF |
| 3766 | |
| 3767 | /* |
| 3768 | * Prevent stats update while adapter is being reset, or if the pci |
| 3769 | * connection is down. |
| 3770 | */ |
| 3771 | if (adapter->link_speed == 0) |
| 3772 | return; |
| 3773 | if (pci_channel_offline(pdev)) |
| 3774 | return; |
| 3775 | |
| 3776 | adapter->stats.crcerrs += rd32(E1000_CRCERRS); |
| 3777 | adapter->stats.gprc += rd32(E1000_GPRC); |
| 3778 | adapter->stats.gorc += rd32(E1000_GORCL); |
| 3779 | rd32(E1000_GORCH); /* clear GORCL */ |
| 3780 | adapter->stats.bprc += rd32(E1000_BPRC); |
| 3781 | adapter->stats.mprc += rd32(E1000_MPRC); |
| 3782 | adapter->stats.roc += rd32(E1000_ROC); |
| 3783 | |
| 3784 | adapter->stats.prc64 += rd32(E1000_PRC64); |
| 3785 | adapter->stats.prc127 += rd32(E1000_PRC127); |
| 3786 | adapter->stats.prc255 += rd32(E1000_PRC255); |
| 3787 | adapter->stats.prc511 += rd32(E1000_PRC511); |
| 3788 | adapter->stats.prc1023 += rd32(E1000_PRC1023); |
| 3789 | adapter->stats.prc1522 += rd32(E1000_PRC1522); |
| 3790 | adapter->stats.symerrs += rd32(E1000_SYMERRS); |
| 3791 | adapter->stats.sec += rd32(E1000_SEC); |
| 3792 | |
| 3793 | adapter->stats.mpc += rd32(E1000_MPC); |
| 3794 | adapter->stats.scc += rd32(E1000_SCC); |
| 3795 | adapter->stats.ecol += rd32(E1000_ECOL); |
| 3796 | adapter->stats.mcc += rd32(E1000_MCC); |
| 3797 | adapter->stats.latecol += rd32(E1000_LATECOL); |
| 3798 | adapter->stats.dc += rd32(E1000_DC); |
| 3799 | adapter->stats.rlec += rd32(E1000_RLEC); |
| 3800 | adapter->stats.xonrxc += rd32(E1000_XONRXC); |
| 3801 | adapter->stats.xontxc += rd32(E1000_XONTXC); |
| 3802 | adapter->stats.xoffrxc += rd32(E1000_XOFFRXC); |
| 3803 | adapter->stats.xofftxc += rd32(E1000_XOFFTXC); |
| 3804 | adapter->stats.fcruc += rd32(E1000_FCRUC); |
| 3805 | adapter->stats.gptc += rd32(E1000_GPTC); |
| 3806 | adapter->stats.gotc += rd32(E1000_GOTCL); |
| 3807 | rd32(E1000_GOTCH); /* clear GOTCL */ |
| 3808 | adapter->stats.rnbc += rd32(E1000_RNBC); |
| 3809 | adapter->stats.ruc += rd32(E1000_RUC); |
| 3810 | adapter->stats.rfc += rd32(E1000_RFC); |
| 3811 | adapter->stats.rjc += rd32(E1000_RJC); |
| 3812 | adapter->stats.tor += rd32(E1000_TORH); |
| 3813 | adapter->stats.tot += rd32(E1000_TOTH); |
| 3814 | adapter->stats.tpr += rd32(E1000_TPR); |
| 3815 | |
| 3816 | adapter->stats.ptc64 += rd32(E1000_PTC64); |
| 3817 | adapter->stats.ptc127 += rd32(E1000_PTC127); |
| 3818 | adapter->stats.ptc255 += rd32(E1000_PTC255); |
| 3819 | adapter->stats.ptc511 += rd32(E1000_PTC511); |
| 3820 | adapter->stats.ptc1023 += rd32(E1000_PTC1023); |
| 3821 | adapter->stats.ptc1522 += rd32(E1000_PTC1522); |
| 3822 | |
| 3823 | adapter->stats.mptc += rd32(E1000_MPTC); |
| 3824 | adapter->stats.bptc += rd32(E1000_BPTC); |
| 3825 | |
| 3826 | /* used for adaptive IFS */ |
| 3827 | |
| 3828 | hw->mac.tx_packet_delta = rd32(E1000_TPT); |
| 3829 | adapter->stats.tpt += hw->mac.tx_packet_delta; |
| 3830 | hw->mac.collision_delta = rd32(E1000_COLC); |
| 3831 | adapter->stats.colc += hw->mac.collision_delta; |
| 3832 | |
| 3833 | adapter->stats.algnerrc += rd32(E1000_ALGNERRC); |
| 3834 | adapter->stats.rxerrc += rd32(E1000_RXERRC); |
| 3835 | adapter->stats.tncrs += rd32(E1000_TNCRS); |
| 3836 | adapter->stats.tsctc += rd32(E1000_TSCTC); |
| 3837 | adapter->stats.tsctfc += rd32(E1000_TSCTFC); |
| 3838 | |
| 3839 | adapter->stats.iac += rd32(E1000_IAC); |
| 3840 | adapter->stats.icrxoc += rd32(E1000_ICRXOC); |
| 3841 | adapter->stats.icrxptc += rd32(E1000_ICRXPTC); |
| 3842 | adapter->stats.icrxatc += rd32(E1000_ICRXATC); |
| 3843 | adapter->stats.ictxptc += rd32(E1000_ICTXPTC); |
| 3844 | adapter->stats.ictxatc += rd32(E1000_ICTXATC); |
| 3845 | adapter->stats.ictxqec += rd32(E1000_ICTXQEC); |
| 3846 | adapter->stats.ictxqmtc += rd32(E1000_ICTXQMTC); |
| 3847 | adapter->stats.icrxdmtc += rd32(E1000_ICRXDMTC); |
| 3848 | |
| 3849 | /* Fill out the OS statistics structure */ |
Ajit Khaparde | 8d24e93 | 2009-10-07 02:42:56 +0000 | [diff] [blame] | 3850 | netdev->stats.multicast = adapter->stats.mprc; |
| 3851 | netdev->stats.collisions = adapter->stats.colc; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3852 | |
| 3853 | /* Rx Errors */ |
| 3854 | |
Jesper Dangaard Brouer | 8c0ab70 | 2009-05-26 13:50:31 +0000 | [diff] [blame] | 3855 | if (hw->mac.type != e1000_82575) { |
| 3856 | u32 rqdpc_tmp; |
Jesper Dangaard Brouer | 3ea73af | 2009-05-26 13:50:48 +0000 | [diff] [blame] | 3857 | u64 rqdpc_total = 0; |
Jesper Dangaard Brouer | 8c0ab70 | 2009-05-26 13:50:31 +0000 | [diff] [blame] | 3858 | int i; |
| 3859 | /* Read out drops stats per RX queue. Notice RQDPC (Receive |
| 3860 | * Queue Drop Packet Count) stats only gets incremented, if |
| 3861 | * the DROP_EN but it set (in the SRRCTL register for that |
| 3862 | * queue). If DROP_EN bit is NOT set, then the some what |
| 3863 | * equivalent count is stored in RNBC (not per queue basis). |
| 3864 | * Also note the drop count is due to lack of available |
| 3865 | * descriptors. |
| 3866 | */ |
| 3867 | for (i = 0; i < adapter->num_rx_queues; i++) { |
| 3868 | rqdpc_tmp = rd32(E1000_RQDPC(i)) & 0xFFF; |
| 3869 | adapter->rx_ring[i].rx_stats.drops += rqdpc_tmp; |
Jesper Dangaard Brouer | 3ea73af | 2009-05-26 13:50:48 +0000 | [diff] [blame] | 3870 | rqdpc_total += adapter->rx_ring[i].rx_stats.drops; |
Jesper Dangaard Brouer | 8c0ab70 | 2009-05-26 13:50:31 +0000 | [diff] [blame] | 3871 | } |
Ajit Khaparde | 8d24e93 | 2009-10-07 02:42:56 +0000 | [diff] [blame] | 3872 | netdev->stats.rx_fifo_errors = rqdpc_total; |
Jesper Dangaard Brouer | 8c0ab70 | 2009-05-26 13:50:31 +0000 | [diff] [blame] | 3873 | } |
| 3874 | |
Jesper Dangaard Brouer | 3ea73af | 2009-05-26 13:50:48 +0000 | [diff] [blame] | 3875 | /* Note RNBC (Receive No Buffers Count) is an not an exact |
| 3876 | * drop count as the hardware FIFO might save the day. Thats |
| 3877 | * one of the reason for saving it in rx_fifo_errors, as its |
| 3878 | * potentially not a true drop. |
| 3879 | */ |
Ajit Khaparde | 8d24e93 | 2009-10-07 02:42:56 +0000 | [diff] [blame] | 3880 | netdev->stats.rx_fifo_errors += adapter->stats.rnbc; |
Jesper Dangaard Brouer | 3ea73af | 2009-05-26 13:50:48 +0000 | [diff] [blame] | 3881 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3882 | /* RLEC on some newer hardware can be incorrect so build |
Jesper Dangaard Brouer | 8c0ab70 | 2009-05-26 13:50:31 +0000 | [diff] [blame] | 3883 | * our own version based on RUC and ROC */ |
Ajit Khaparde | 8d24e93 | 2009-10-07 02:42:56 +0000 | [diff] [blame] | 3884 | netdev->stats.rx_errors = adapter->stats.rxerrc + |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3885 | adapter->stats.crcerrs + adapter->stats.algnerrc + |
| 3886 | adapter->stats.ruc + adapter->stats.roc + |
| 3887 | adapter->stats.cexterr; |
Ajit Khaparde | 8d24e93 | 2009-10-07 02:42:56 +0000 | [diff] [blame] | 3888 | netdev->stats.rx_length_errors = adapter->stats.ruc + |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3889 | adapter->stats.roc; |
Ajit Khaparde | 8d24e93 | 2009-10-07 02:42:56 +0000 | [diff] [blame] | 3890 | netdev->stats.rx_crc_errors = adapter->stats.crcerrs; |
| 3891 | netdev->stats.rx_frame_errors = adapter->stats.algnerrc; |
| 3892 | netdev->stats.rx_missed_errors = adapter->stats.mpc; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3893 | |
| 3894 | /* Tx Errors */ |
Ajit Khaparde | 8d24e93 | 2009-10-07 02:42:56 +0000 | [diff] [blame] | 3895 | netdev->stats.tx_errors = adapter->stats.ecol + |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3896 | adapter->stats.latecol; |
Ajit Khaparde | 8d24e93 | 2009-10-07 02:42:56 +0000 | [diff] [blame] | 3897 | netdev->stats.tx_aborted_errors = adapter->stats.ecol; |
| 3898 | netdev->stats.tx_window_errors = adapter->stats.latecol; |
| 3899 | netdev->stats.tx_carrier_errors = adapter->stats.tncrs; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3900 | |
| 3901 | /* Tx Dropped needs to be maintained elsewhere */ |
| 3902 | |
| 3903 | /* Phy Stats */ |
| 3904 | if (hw->phy.media_type == e1000_media_type_copper) { |
| 3905 | if ((adapter->link_speed == SPEED_1000) && |
Alexander Duyck | 73cd78f | 2009-02-12 18:16:59 +0000 | [diff] [blame] | 3906 | (!igb_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3907 | phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK; |
| 3908 | adapter->phy_stats.idle_errors += phy_tmp; |
| 3909 | } |
| 3910 | } |
| 3911 | |
| 3912 | /* Management Stats */ |
| 3913 | adapter->stats.mgptc += rd32(E1000_MGTPTC); |
| 3914 | adapter->stats.mgprc += rd32(E1000_MGTPRC); |
| 3915 | adapter->stats.mgpdc += rd32(E1000_MGTPDC); |
| 3916 | } |
| 3917 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3918 | static irqreturn_t igb_msix_other(int irq, void *data) |
| 3919 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3920 | struct igb_adapter *adapter = data; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3921 | struct e1000_hw *hw = &adapter->hw; |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 3922 | u32 icr = rd32(E1000_ICR); |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 3923 | /* reading ICR causes bit 31 of EICR to be cleared */ |
Alexander Duyck | dda0e08 | 2009-02-06 23:19:08 +0000 | [diff] [blame] | 3924 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3925 | if (icr & E1000_ICR_DOUTSYNC) { |
Alexander Duyck | dda0e08 | 2009-02-06 23:19:08 +0000 | [diff] [blame] | 3926 | /* HW is reporting DMA is out of sync */ |
| 3927 | adapter->stats.doosync++; |
| 3928 | } |
Alexander Duyck | eebbbdb | 2009-02-06 23:19:29 +0000 | [diff] [blame] | 3929 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 3930 | /* Check for a mailbox event */ |
| 3931 | if (icr & E1000_ICR_VMMB) |
| 3932 | igb_msg_task(adapter); |
| 3933 | |
| 3934 | if (icr & E1000_ICR_LSC) { |
| 3935 | hw->mac.get_link_status = 1; |
| 3936 | /* guard against interrupt when we're going down */ |
| 3937 | if (!test_bit(__IGB_DOWN, &adapter->state)) |
| 3938 | mod_timer(&adapter->watchdog_timer, jiffies + 1); |
| 3939 | } |
| 3940 | |
| 3941 | wr32(E1000_IMS, E1000_IMS_LSC | E1000_IMS_DOUTSYNC | E1000_IMS_VMMB); |
PJ Waskiewicz | 844290e | 2008-06-27 11:00:39 -0700 | [diff] [blame] | 3942 | wr32(E1000_EIMS, adapter->eims_other); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3943 | |
| 3944 | return IRQ_HANDLED; |
| 3945 | } |
| 3946 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3947 | static void igb_write_itr(struct igb_q_vector *q_vector) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3948 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3949 | u32 itr_val = q_vector->itr_val & 0x7FFC; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3950 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3951 | if (!q_vector->set_itr) |
| 3952 | return; |
Alexander Duyck | 73cd78f | 2009-02-12 18:16:59 +0000 | [diff] [blame] | 3953 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3954 | if (!itr_val) |
| 3955 | itr_val = 0x4; |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 3956 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3957 | if (q_vector->itr_shift) |
| 3958 | itr_val |= itr_val << q_vector->itr_shift; |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 3959 | else |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3960 | itr_val |= 0x8000000; |
| 3961 | |
| 3962 | writel(itr_val, q_vector->itr_register); |
| 3963 | q_vector->set_itr = 0; |
| 3964 | } |
| 3965 | |
| 3966 | static irqreturn_t igb_msix_ring(int irq, void *data) |
| 3967 | { |
| 3968 | struct igb_q_vector *q_vector = data; |
| 3969 | |
| 3970 | /* Write the ITR value calculated from the previous interrupt. */ |
| 3971 | igb_write_itr(q_vector); |
| 3972 | |
| 3973 | napi_schedule(&q_vector->napi); |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 3974 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 3975 | return IRQ_HANDLED; |
| 3976 | } |
| 3977 | |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 3978 | #ifdef CONFIG_IGB_DCA |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3979 | static void igb_update_dca(struct igb_q_vector *q_vector) |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 3980 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3981 | struct igb_adapter *adapter = q_vector->adapter; |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 3982 | struct e1000_hw *hw = &adapter->hw; |
| 3983 | int cpu = get_cpu(); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 3984 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 3985 | if (q_vector->cpu == cpu) |
| 3986 | goto out_no_update; |
| 3987 | |
| 3988 | if (q_vector->tx_ring) { |
| 3989 | int q = q_vector->tx_ring->reg_idx; |
| 3990 | u32 dca_txctrl = rd32(E1000_DCA_TXCTRL(q)); |
| 3991 | if (hw->mac.type == e1000_82575) { |
| 3992 | dca_txctrl &= ~E1000_DCA_TXCTRL_CPUID_MASK; |
| 3993 | dca_txctrl |= dca3_get_tag(&adapter->pdev->dev, cpu); |
| 3994 | } else { |
| 3995 | dca_txctrl &= ~E1000_DCA_TXCTRL_CPUID_MASK_82576; |
| 3996 | dca_txctrl |= dca3_get_tag(&adapter->pdev->dev, cpu) << |
| 3997 | E1000_DCA_TXCTRL_CPUID_SHIFT; |
| 3998 | } |
| 3999 | dca_txctrl |= E1000_DCA_TXCTRL_DESC_DCA_EN; |
| 4000 | wr32(E1000_DCA_TXCTRL(q), dca_txctrl); |
| 4001 | } |
| 4002 | if (q_vector->rx_ring) { |
| 4003 | int q = q_vector->rx_ring->reg_idx; |
| 4004 | u32 dca_rxctrl = rd32(E1000_DCA_RXCTRL(q)); |
| 4005 | if (hw->mac.type == e1000_82575) { |
| 4006 | dca_rxctrl &= ~E1000_DCA_RXCTRL_CPUID_MASK; |
| 4007 | dca_rxctrl |= dca3_get_tag(&adapter->pdev->dev, cpu); |
| 4008 | } else { |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 4009 | dca_rxctrl &= ~E1000_DCA_RXCTRL_CPUID_MASK_82576; |
Maciej Sosnowski | 92be791 | 2009-03-13 20:40:21 +0000 | [diff] [blame] | 4010 | dca_rxctrl |= dca3_get_tag(&adapter->pdev->dev, cpu) << |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 4011 | E1000_DCA_RXCTRL_CPUID_SHIFT; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 4012 | } |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 4013 | dca_rxctrl |= E1000_DCA_RXCTRL_DESC_DCA_EN; |
| 4014 | dca_rxctrl |= E1000_DCA_RXCTRL_HEAD_DCA_EN; |
| 4015 | dca_rxctrl |= E1000_DCA_RXCTRL_DATA_DCA_EN; |
| 4016 | wr32(E1000_DCA_RXCTRL(q), dca_rxctrl); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 4017 | } |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4018 | q_vector->cpu = cpu; |
| 4019 | out_no_update: |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 4020 | put_cpu(); |
| 4021 | } |
| 4022 | |
| 4023 | static void igb_setup_dca(struct igb_adapter *adapter) |
| 4024 | { |
Alexander Duyck | 7e0e99e | 2009-05-21 13:06:56 +0000 | [diff] [blame] | 4025 | struct e1000_hw *hw = &adapter->hw; |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 4026 | int i; |
| 4027 | |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 4028 | if (!(adapter->flags & IGB_FLAG_DCA_ENABLED)) |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 4029 | return; |
| 4030 | |
Alexander Duyck | 7e0e99e | 2009-05-21 13:06:56 +0000 | [diff] [blame] | 4031 | /* Always use CB2 mode, difference is masked in the CB driver. */ |
| 4032 | wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_CB2); |
| 4033 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4034 | for (i = 0; i < adapter->num_q_vectors; i++) { |
| 4035 | struct igb_q_vector *q_vector = adapter->q_vector[i]; |
| 4036 | q_vector->cpu = -1; |
| 4037 | igb_update_dca(q_vector); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 4038 | } |
| 4039 | } |
| 4040 | |
| 4041 | static int __igb_notify_dca(struct device *dev, void *data) |
| 4042 | { |
| 4043 | struct net_device *netdev = dev_get_drvdata(dev); |
| 4044 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 4045 | struct e1000_hw *hw = &adapter->hw; |
| 4046 | unsigned long event = *(unsigned long *)data; |
| 4047 | |
| 4048 | switch (event) { |
| 4049 | case DCA_PROVIDER_ADD: |
| 4050 | /* if already enabled, don't do it again */ |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 4051 | if (adapter->flags & IGB_FLAG_DCA_ENABLED) |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 4052 | break; |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 4053 | /* Always use CB2 mode, difference is masked |
| 4054 | * in the CB driver. */ |
Alexander Duyck | cbd347a | 2009-02-15 23:59:44 -0800 | [diff] [blame] | 4055 | wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_CB2); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 4056 | if (dca_add_requester(dev) == 0) { |
Alexander Duyck | bbd98fe | 2009-01-31 00:52:30 -0800 | [diff] [blame] | 4057 | adapter->flags |= IGB_FLAG_DCA_ENABLED; |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 4058 | dev_info(&adapter->pdev->dev, "DCA enabled\n"); |
| 4059 | igb_setup_dca(adapter); |
| 4060 | break; |
| 4061 | } |
| 4062 | /* Fall Through since DCA is disabled. */ |
| 4063 | case DCA_PROVIDER_REMOVE: |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 4064 | if (adapter->flags & IGB_FLAG_DCA_ENABLED) { |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 4065 | /* without this a class_device is left |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4066 | * hanging around in the sysfs model */ |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 4067 | dca_remove_requester(dev); |
| 4068 | dev_info(&adapter->pdev->dev, "DCA disabled\n"); |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 4069 | adapter->flags &= ~IGB_FLAG_DCA_ENABLED; |
Alexander Duyck | cbd347a | 2009-02-15 23:59:44 -0800 | [diff] [blame] | 4070 | wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_DISABLE); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 4071 | } |
| 4072 | break; |
| 4073 | } |
Alexander Duyck | bbd98fe | 2009-01-31 00:52:30 -0800 | [diff] [blame] | 4074 | |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 4075 | return 0; |
| 4076 | } |
| 4077 | |
| 4078 | static int igb_notify_dca(struct notifier_block *nb, unsigned long event, |
| 4079 | void *p) |
| 4080 | { |
| 4081 | int ret_val; |
| 4082 | |
| 4083 | ret_val = driver_for_each_device(&igb_driver.driver, NULL, &event, |
| 4084 | __igb_notify_dca); |
| 4085 | |
| 4086 | return ret_val ? NOTIFY_BAD : NOTIFY_DONE; |
| 4087 | } |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 4088 | #endif /* CONFIG_IGB_DCA */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4089 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4090 | static void igb_ping_all_vfs(struct igb_adapter *adapter) |
| 4091 | { |
| 4092 | struct e1000_hw *hw = &adapter->hw; |
| 4093 | u32 ping; |
| 4094 | int i; |
| 4095 | |
| 4096 | for (i = 0 ; i < adapter->vfs_allocated_count; i++) { |
| 4097 | ping = E1000_PF_CONTROL_MSG; |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4098 | if (adapter->vf_data[i].flags & IGB_VF_FLAG_CTS) |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4099 | ping |= E1000_VT_MSGTYPE_CTS; |
| 4100 | igb_write_mbx(hw, &ping, 1, i); |
| 4101 | } |
| 4102 | } |
| 4103 | |
| 4104 | static int igb_set_vf_multicasts(struct igb_adapter *adapter, |
| 4105 | u32 *msgbuf, u32 vf) |
| 4106 | { |
| 4107 | int n = (msgbuf[0] & E1000_VT_MSGINFO_MASK) >> E1000_VT_MSGINFO_SHIFT; |
| 4108 | u16 *hash_list = (u16 *)&msgbuf[1]; |
| 4109 | struct vf_data_storage *vf_data = &adapter->vf_data[vf]; |
| 4110 | int i; |
| 4111 | |
| 4112 | /* only up to 30 hash values supported */ |
| 4113 | if (n > 30) |
| 4114 | n = 30; |
| 4115 | |
| 4116 | /* salt away the number of multi cast addresses assigned |
| 4117 | * to this VF for later use to restore when the PF multi cast |
| 4118 | * list changes |
| 4119 | */ |
| 4120 | vf_data->num_vf_mc_hashes = n; |
| 4121 | |
| 4122 | /* VFs are limited to using the MTA hash table for their multicast |
| 4123 | * addresses */ |
| 4124 | for (i = 0; i < n; i++) |
Joe Perches | a419aef | 2009-08-18 11:18:35 -0700 | [diff] [blame] | 4125 | vf_data->vf_mc_hashes[i] = hash_list[i]; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4126 | |
| 4127 | /* Flush and reset the mta with the new values */ |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 4128 | igb_set_rx_mode(adapter->netdev); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4129 | |
| 4130 | return 0; |
| 4131 | } |
| 4132 | |
| 4133 | static void igb_restore_vf_multicasts(struct igb_adapter *adapter) |
| 4134 | { |
| 4135 | struct e1000_hw *hw = &adapter->hw; |
| 4136 | struct vf_data_storage *vf_data; |
| 4137 | int i, j; |
| 4138 | |
| 4139 | for (i = 0; i < adapter->vfs_allocated_count; i++) { |
| 4140 | vf_data = &adapter->vf_data[i]; |
Alexander Duyck | 75f4f38 | 2009-03-13 20:41:55 +0000 | [diff] [blame] | 4141 | for (j = 0; j < vf_data->num_vf_mc_hashes; j++) |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4142 | igb_mta_set(hw, vf_data->vf_mc_hashes[j]); |
| 4143 | } |
| 4144 | } |
| 4145 | |
| 4146 | static void igb_clear_vf_vfta(struct igb_adapter *adapter, u32 vf) |
| 4147 | { |
| 4148 | struct e1000_hw *hw = &adapter->hw; |
| 4149 | u32 pool_mask, reg, vid; |
| 4150 | int i; |
| 4151 | |
| 4152 | pool_mask = 1 << (E1000_VLVF_POOLSEL_SHIFT + vf); |
| 4153 | |
| 4154 | /* Find the vlan filter for this id */ |
| 4155 | for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) { |
| 4156 | reg = rd32(E1000_VLVF(i)); |
| 4157 | |
| 4158 | /* remove the vf from the pool */ |
| 4159 | reg &= ~pool_mask; |
| 4160 | |
| 4161 | /* if pool is empty then remove entry from vfta */ |
| 4162 | if (!(reg & E1000_VLVF_POOLSEL_MASK) && |
| 4163 | (reg & E1000_VLVF_VLANID_ENABLE)) { |
| 4164 | reg = 0; |
| 4165 | vid = reg & E1000_VLVF_VLANID_MASK; |
| 4166 | igb_vfta_set(hw, vid, false); |
| 4167 | } |
| 4168 | |
| 4169 | wr32(E1000_VLVF(i), reg); |
| 4170 | } |
Alexander Duyck | ae641bd | 2009-09-03 14:49:33 +0000 | [diff] [blame] | 4171 | |
| 4172 | adapter->vf_data[vf].vlans_enabled = 0; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4173 | } |
| 4174 | |
| 4175 | static s32 igb_vlvf_set(struct igb_adapter *adapter, u32 vid, bool add, u32 vf) |
| 4176 | { |
| 4177 | struct e1000_hw *hw = &adapter->hw; |
| 4178 | u32 reg, i; |
| 4179 | |
| 4180 | /* It is an error to call this function when VFs are not enabled */ |
| 4181 | if (!adapter->vfs_allocated_count) |
| 4182 | return -1; |
| 4183 | |
| 4184 | /* Find the vlan filter for this id */ |
| 4185 | for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) { |
| 4186 | reg = rd32(E1000_VLVF(i)); |
| 4187 | if ((reg & E1000_VLVF_VLANID_ENABLE) && |
| 4188 | vid == (reg & E1000_VLVF_VLANID_MASK)) |
| 4189 | break; |
| 4190 | } |
| 4191 | |
| 4192 | if (add) { |
| 4193 | if (i == E1000_VLVF_ARRAY_SIZE) { |
| 4194 | /* Did not find a matching VLAN ID entry that was |
| 4195 | * enabled. Search for a free filter entry, i.e. |
| 4196 | * one without the enable bit set |
| 4197 | */ |
| 4198 | for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) { |
| 4199 | reg = rd32(E1000_VLVF(i)); |
| 4200 | if (!(reg & E1000_VLVF_VLANID_ENABLE)) |
| 4201 | break; |
| 4202 | } |
| 4203 | } |
| 4204 | if (i < E1000_VLVF_ARRAY_SIZE) { |
| 4205 | /* Found an enabled/available entry */ |
| 4206 | reg |= 1 << (E1000_VLVF_POOLSEL_SHIFT + vf); |
| 4207 | |
| 4208 | /* if !enabled we need to set this up in vfta */ |
| 4209 | if (!(reg & E1000_VLVF_VLANID_ENABLE)) { |
Alexander Duyck | cad6d05 | 2009-03-13 20:41:37 +0000 | [diff] [blame] | 4210 | /* add VID to filter table, if bit already set |
| 4211 | * PF must have added it outside of table */ |
| 4212 | if (igb_vfta_set(hw, vid, true)) |
| 4213 | reg |= 1 << (E1000_VLVF_POOLSEL_SHIFT + |
| 4214 | adapter->vfs_allocated_count); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4215 | reg |= E1000_VLVF_VLANID_ENABLE; |
| 4216 | } |
Alexander Duyck | cad6d05 | 2009-03-13 20:41:37 +0000 | [diff] [blame] | 4217 | reg &= ~E1000_VLVF_VLANID_MASK; |
| 4218 | reg |= vid; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4219 | |
| 4220 | wr32(E1000_VLVF(i), reg); |
Alexander Duyck | ae641bd | 2009-09-03 14:49:33 +0000 | [diff] [blame] | 4221 | |
| 4222 | /* do not modify RLPML for PF devices */ |
| 4223 | if (vf >= adapter->vfs_allocated_count) |
| 4224 | return 0; |
| 4225 | |
| 4226 | if (!adapter->vf_data[vf].vlans_enabled) { |
| 4227 | u32 size; |
| 4228 | reg = rd32(E1000_VMOLR(vf)); |
| 4229 | size = reg & E1000_VMOLR_RLPML_MASK; |
| 4230 | size += 4; |
| 4231 | reg &= ~E1000_VMOLR_RLPML_MASK; |
| 4232 | reg |= size; |
| 4233 | wr32(E1000_VMOLR(vf), reg); |
| 4234 | } |
| 4235 | adapter->vf_data[vf].vlans_enabled++; |
| 4236 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4237 | return 0; |
| 4238 | } |
| 4239 | } else { |
| 4240 | if (i < E1000_VLVF_ARRAY_SIZE) { |
| 4241 | /* remove vf from the pool */ |
| 4242 | reg &= ~(1 << (E1000_VLVF_POOLSEL_SHIFT + vf)); |
| 4243 | /* if pool is empty then remove entry from vfta */ |
| 4244 | if (!(reg & E1000_VLVF_POOLSEL_MASK)) { |
| 4245 | reg = 0; |
| 4246 | igb_vfta_set(hw, vid, false); |
| 4247 | } |
| 4248 | wr32(E1000_VLVF(i), reg); |
Alexander Duyck | ae641bd | 2009-09-03 14:49:33 +0000 | [diff] [blame] | 4249 | |
| 4250 | /* do not modify RLPML for PF devices */ |
| 4251 | if (vf >= adapter->vfs_allocated_count) |
| 4252 | return 0; |
| 4253 | |
| 4254 | adapter->vf_data[vf].vlans_enabled--; |
| 4255 | if (!adapter->vf_data[vf].vlans_enabled) { |
| 4256 | u32 size; |
| 4257 | reg = rd32(E1000_VMOLR(vf)); |
| 4258 | size = reg & E1000_VMOLR_RLPML_MASK; |
| 4259 | size -= 4; |
| 4260 | reg &= ~E1000_VMOLR_RLPML_MASK; |
| 4261 | reg |= size; |
| 4262 | wr32(E1000_VMOLR(vf), reg); |
| 4263 | } |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4264 | return 0; |
| 4265 | } |
| 4266 | } |
| 4267 | return -1; |
| 4268 | } |
| 4269 | |
| 4270 | static int igb_set_vf_vlan(struct igb_adapter *adapter, u32 *msgbuf, u32 vf) |
| 4271 | { |
| 4272 | int add = (msgbuf[0] & E1000_VT_MSGINFO_MASK) >> E1000_VT_MSGINFO_SHIFT; |
| 4273 | int vid = (msgbuf[1] & E1000_VLVF_VLANID_MASK); |
| 4274 | |
| 4275 | return igb_vlvf_set(adapter, vid, add, vf); |
| 4276 | } |
| 4277 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4278 | static inline void igb_vf_reset(struct igb_adapter *adapter, u32 vf) |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4279 | { |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4280 | /* clear all flags */ |
| 4281 | adapter->vf_data[vf].flags = 0; |
| 4282 | adapter->vf_data[vf].last_nack = jiffies; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4283 | |
| 4284 | /* reset offloads to defaults */ |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4285 | igb_set_vmolr(&adapter->hw, vf); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4286 | |
| 4287 | /* reset vlans for device */ |
| 4288 | igb_clear_vf_vfta(adapter, vf); |
| 4289 | |
| 4290 | /* reset multicast table array for vf */ |
| 4291 | adapter->vf_data[vf].num_vf_mc_hashes = 0; |
| 4292 | |
| 4293 | /* Flush and reset the mta with the new values */ |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 4294 | igb_set_rx_mode(adapter->netdev); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4295 | } |
| 4296 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4297 | static void igb_vf_reset_event(struct igb_adapter *adapter, u32 vf) |
| 4298 | { |
| 4299 | unsigned char *vf_mac = adapter->vf_data[vf].vf_mac_addresses; |
| 4300 | |
| 4301 | /* generate a new mac address as we were hotplug removed/added */ |
| 4302 | random_ether_addr(vf_mac); |
| 4303 | |
| 4304 | /* process remaining reset events */ |
| 4305 | igb_vf_reset(adapter, vf); |
| 4306 | } |
| 4307 | |
| 4308 | static void igb_vf_reset_msg(struct igb_adapter *adapter, u32 vf) |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4309 | { |
| 4310 | struct e1000_hw *hw = &adapter->hw; |
| 4311 | unsigned char *vf_mac = adapter->vf_data[vf].vf_mac_addresses; |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 4312 | int rar_entry = hw->mac.rar_entry_count - (vf + 1); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4313 | u32 reg, msgbuf[3]; |
| 4314 | u8 *addr = (u8 *)(&msgbuf[1]); |
| 4315 | |
| 4316 | /* process all the same items cleared in a function level reset */ |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4317 | igb_vf_reset(adapter, vf); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4318 | |
| 4319 | /* set vf mac address */ |
Alexander Duyck | 26ad917 | 2009-10-05 06:32:49 +0000 | [diff] [blame] | 4320 | igb_rar_set_qsel(adapter, vf_mac, rar_entry, vf); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4321 | |
| 4322 | /* enable transmit and receive for vf */ |
| 4323 | reg = rd32(E1000_VFTE); |
| 4324 | wr32(E1000_VFTE, reg | (1 << vf)); |
| 4325 | reg = rd32(E1000_VFRE); |
| 4326 | wr32(E1000_VFRE, reg | (1 << vf)); |
| 4327 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4328 | adapter->vf_data[vf].flags = IGB_VF_FLAG_CTS; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4329 | |
| 4330 | /* reply to reset with ack and vf mac address */ |
| 4331 | msgbuf[0] = E1000_VF_RESET | E1000_VT_MSGTYPE_ACK; |
| 4332 | memcpy(addr, vf_mac, 6); |
| 4333 | igb_write_mbx(hw, msgbuf, 3, vf); |
| 4334 | } |
| 4335 | |
| 4336 | static int igb_set_vf_mac_addr(struct igb_adapter *adapter, u32 *msg, int vf) |
| 4337 | { |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4338 | unsigned char *addr = (char *)&msg[1]; |
| 4339 | int err = -1; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4340 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4341 | if (is_valid_ether_addr(addr)) |
| 4342 | err = igb_set_vf_mac(adapter, vf, addr); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4343 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4344 | return err; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4345 | } |
| 4346 | |
| 4347 | static void igb_rcv_ack_from_vf(struct igb_adapter *adapter, u32 vf) |
| 4348 | { |
| 4349 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4350 | struct vf_data_storage *vf_data = &adapter->vf_data[vf]; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4351 | u32 msg = E1000_VT_MSGTYPE_NACK; |
| 4352 | |
| 4353 | /* 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^] | 4354 | if (!(vf_data->flags & IGB_VF_FLAG_CTS) && |
| 4355 | time_after(jiffies, vf_data->last_nack + (2 * HZ))) { |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4356 | igb_write_mbx(hw, &msg, 1, vf); |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4357 | vf_data->last_nack = jiffies; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4358 | } |
| 4359 | } |
| 4360 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4361 | 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] | 4362 | { |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4363 | struct pci_dev *pdev = adapter->pdev; |
| 4364 | u32 msgbuf[E1000_VFMAILBOX_SIZE]; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4365 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4366 | struct vf_data_storage *vf_data = &adapter->vf_data[vf]; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4367 | s32 retval; |
| 4368 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4369 | retval = igb_read_mbx(hw, msgbuf, E1000_VFMAILBOX_SIZE, vf); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4370 | |
| 4371 | if (retval) |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4372 | dev_err(&pdev->dev, "Error receiving message from VF\n"); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4373 | |
| 4374 | /* this is a message we already processed, do nothing */ |
| 4375 | if (msgbuf[0] & (E1000_VT_MSGTYPE_ACK | E1000_VT_MSGTYPE_NACK)) |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4376 | return; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4377 | |
| 4378 | /* |
| 4379 | * until the vf completes a reset it should not be |
| 4380 | * allowed to start any configuration. |
| 4381 | */ |
| 4382 | |
| 4383 | if (msgbuf[0] == E1000_VF_RESET) { |
| 4384 | igb_vf_reset_msg(adapter, vf); |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4385 | return; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4386 | } |
| 4387 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4388 | if (!(vf_data->flags & IGB_VF_FLAG_CTS)) { |
| 4389 | msgbuf[0] = E1000_VT_MSGTYPE_NACK; |
| 4390 | if (time_after(jiffies, vf_data->last_nack + (2 * HZ))) { |
| 4391 | igb_write_mbx(hw, msgbuf, 1, vf); |
| 4392 | vf_data->last_nack = jiffies; |
| 4393 | } |
| 4394 | return; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4395 | } |
| 4396 | |
| 4397 | switch ((msgbuf[0] & 0xFFFF)) { |
| 4398 | case E1000_VF_SET_MAC_ADDR: |
| 4399 | retval = igb_set_vf_mac_addr(adapter, msgbuf, vf); |
| 4400 | break; |
| 4401 | case E1000_VF_SET_MULTICAST: |
| 4402 | retval = igb_set_vf_multicasts(adapter, msgbuf, vf); |
| 4403 | break; |
| 4404 | case E1000_VF_SET_LPE: |
| 4405 | retval = igb_set_vf_rlpml(adapter, msgbuf[1], vf); |
| 4406 | break; |
| 4407 | case E1000_VF_SET_VLAN: |
| 4408 | retval = igb_set_vf_vlan(adapter, msgbuf, vf); |
| 4409 | break; |
| 4410 | default: |
| 4411 | dev_err(&adapter->pdev->dev, "Unhandled Msg %08x\n", msgbuf[0]); |
| 4412 | retval = -1; |
| 4413 | break; |
| 4414 | } |
| 4415 | |
| 4416 | /* notify the VF of the results of what it sent us */ |
| 4417 | if (retval) |
| 4418 | msgbuf[0] |= E1000_VT_MSGTYPE_NACK; |
| 4419 | else |
| 4420 | msgbuf[0] |= E1000_VT_MSGTYPE_ACK; |
| 4421 | |
| 4422 | msgbuf[0] |= E1000_VT_MSGTYPE_CTS; |
| 4423 | |
| 4424 | igb_write_mbx(hw, msgbuf, 1, vf); |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4425 | } |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4426 | |
Alexander Duyck | f2ca0db | 2009-10-27 23:46:57 +0000 | [diff] [blame^] | 4427 | static void igb_msg_task(struct igb_adapter *adapter) |
| 4428 | { |
| 4429 | struct e1000_hw *hw = &adapter->hw; |
| 4430 | u32 vf; |
| 4431 | |
| 4432 | for (vf = 0; vf < adapter->vfs_allocated_count; vf++) { |
| 4433 | /* process any reset requests */ |
| 4434 | if (!igb_check_for_rst(hw, vf)) |
| 4435 | igb_vf_reset_event(adapter, vf); |
| 4436 | |
| 4437 | /* process any messages pending */ |
| 4438 | if (!igb_check_for_msg(hw, vf)) |
| 4439 | igb_rcv_msg_from_vf(adapter, vf); |
| 4440 | |
| 4441 | /* process any acks */ |
| 4442 | if (!igb_check_for_ack(hw, vf)) |
| 4443 | igb_rcv_ack_from_vf(adapter, vf); |
| 4444 | } |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 4445 | } |
| 4446 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4447 | /** |
Alexander Duyck | 68d480c | 2009-10-05 06:33:08 +0000 | [diff] [blame] | 4448 | * igb_set_uta - Set unicast filter table address |
| 4449 | * @adapter: board private structure |
| 4450 | * |
| 4451 | * The unicast table address is a register array of 32-bit registers. |
| 4452 | * The table is meant to be used in a way similar to how the MTA is used |
| 4453 | * however due to certain limitations in the hardware it is necessary to |
| 4454 | * set all the hash bits to 1 and use the VMOLR ROPE bit as a promiscous |
| 4455 | * enable bit to allow vlan tag stripping when promiscous mode is enabled |
| 4456 | **/ |
| 4457 | static void igb_set_uta(struct igb_adapter *adapter) |
| 4458 | { |
| 4459 | struct e1000_hw *hw = &adapter->hw; |
| 4460 | int i; |
| 4461 | |
| 4462 | /* The UTA table only exists on 82576 hardware and newer */ |
| 4463 | if (hw->mac.type < e1000_82576) |
| 4464 | return; |
| 4465 | |
| 4466 | /* we only need to do this if VMDq is enabled */ |
| 4467 | if (!adapter->vfs_allocated_count) |
| 4468 | return; |
| 4469 | |
| 4470 | for (i = 0; i < hw->mac.uta_reg_count; i++) |
| 4471 | array_wr32(E1000_UTA, i, ~0); |
| 4472 | } |
| 4473 | |
| 4474 | /** |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4475 | * igb_intr_msi - Interrupt Handler |
| 4476 | * @irq: interrupt number |
| 4477 | * @data: pointer to a network interface device structure |
| 4478 | **/ |
| 4479 | static irqreturn_t igb_intr_msi(int irq, void *data) |
| 4480 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4481 | struct igb_adapter *adapter = data; |
| 4482 | struct igb_q_vector *q_vector = adapter->q_vector[0]; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4483 | struct e1000_hw *hw = &adapter->hw; |
| 4484 | /* read ICR disables interrupts using IAM */ |
| 4485 | u32 icr = rd32(E1000_ICR); |
| 4486 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4487 | igb_write_itr(q_vector); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4488 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4489 | if (icr & E1000_ICR_DOUTSYNC) { |
Alexander Duyck | dda0e08 | 2009-02-06 23:19:08 +0000 | [diff] [blame] | 4490 | /* HW is reporting DMA is out of sync */ |
| 4491 | adapter->stats.doosync++; |
| 4492 | } |
| 4493 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4494 | if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) { |
| 4495 | hw->mac.get_link_status = 1; |
| 4496 | if (!test_bit(__IGB_DOWN, &adapter->state)) |
| 4497 | mod_timer(&adapter->watchdog_timer, jiffies + 1); |
| 4498 | } |
| 4499 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4500 | napi_schedule(&q_vector->napi); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4501 | |
| 4502 | return IRQ_HANDLED; |
| 4503 | } |
| 4504 | |
| 4505 | /** |
Alexander Duyck | 4a3c643 | 2009-02-06 23:20:49 +0000 | [diff] [blame] | 4506 | * igb_intr - Legacy Interrupt Handler |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4507 | * @irq: interrupt number |
| 4508 | * @data: pointer to a network interface device structure |
| 4509 | **/ |
| 4510 | static irqreturn_t igb_intr(int irq, void *data) |
| 4511 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4512 | struct igb_adapter *adapter = data; |
| 4513 | struct igb_q_vector *q_vector = adapter->q_vector[0]; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4514 | struct e1000_hw *hw = &adapter->hw; |
| 4515 | /* Interrupt Auto-Mask...upon reading ICR, interrupts are masked. No |
| 4516 | * need for the IMC write */ |
| 4517 | u32 icr = rd32(E1000_ICR); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4518 | if (!icr) |
| 4519 | return IRQ_NONE; /* Not our interrupt */ |
| 4520 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4521 | igb_write_itr(q_vector); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4522 | |
| 4523 | /* IMS will not auto-mask if INT_ASSERTED is not set, and if it is |
| 4524 | * not set, then the adapter didn't send an interrupt */ |
| 4525 | if (!(icr & E1000_ICR_INT_ASSERTED)) |
| 4526 | return IRQ_NONE; |
| 4527 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4528 | if (icr & E1000_ICR_DOUTSYNC) { |
Alexander Duyck | dda0e08 | 2009-02-06 23:19:08 +0000 | [diff] [blame] | 4529 | /* HW is reporting DMA is out of sync */ |
| 4530 | adapter->stats.doosync++; |
| 4531 | } |
| 4532 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4533 | if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) { |
| 4534 | hw->mac.get_link_status = 1; |
| 4535 | /* guard against interrupt when we're going down */ |
| 4536 | if (!test_bit(__IGB_DOWN, &adapter->state)) |
| 4537 | mod_timer(&adapter->watchdog_timer, jiffies + 1); |
| 4538 | } |
| 4539 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4540 | napi_schedule(&q_vector->napi); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4541 | |
| 4542 | return IRQ_HANDLED; |
| 4543 | } |
| 4544 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4545 | static inline void igb_ring_irq_enable(struct igb_q_vector *q_vector) |
Alexander Duyck | 4654425 | 2009-02-19 20:39:04 -0800 | [diff] [blame] | 4546 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4547 | struct igb_adapter *adapter = q_vector->adapter; |
Alexander Duyck | 4654425 | 2009-02-19 20:39:04 -0800 | [diff] [blame] | 4548 | struct e1000_hw *hw = &adapter->hw; |
| 4549 | |
Alexander Duyck | 4fc82ad | 2009-10-27 23:45:42 +0000 | [diff] [blame] | 4550 | if ((q_vector->rx_ring && (adapter->rx_itr_setting & 3)) || |
| 4551 | (!q_vector->rx_ring && (adapter->tx_itr_setting & 3))) { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4552 | if (!adapter->msix_entries) |
Alexander Duyck | 4654425 | 2009-02-19 20:39:04 -0800 | [diff] [blame] | 4553 | igb_set_itr(adapter); |
| 4554 | else |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4555 | igb_update_ring_itr(q_vector); |
Alexander Duyck | 4654425 | 2009-02-19 20:39:04 -0800 | [diff] [blame] | 4556 | } |
| 4557 | |
| 4558 | if (!test_bit(__IGB_DOWN, &adapter->state)) { |
| 4559 | if (adapter->msix_entries) |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4560 | wr32(E1000_EIMS, q_vector->eims_value); |
Alexander Duyck | 4654425 | 2009-02-19 20:39:04 -0800 | [diff] [blame] | 4561 | else |
| 4562 | igb_irq_enable(adapter); |
| 4563 | } |
| 4564 | } |
| 4565 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4566 | /** |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 4567 | * igb_poll - NAPI Rx polling callback |
| 4568 | * @napi: napi polling structure |
| 4569 | * @budget: count of how many packets we should handle |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4570 | **/ |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 4571 | static int igb_poll(struct napi_struct *napi, int budget) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4572 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4573 | struct igb_q_vector *q_vector = container_of(napi, |
| 4574 | struct igb_q_vector, |
| 4575 | napi); |
| 4576 | int tx_clean_complete = 1, work_done = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4577 | |
Jeff Kirsher | 421e02f | 2008-10-17 11:08:31 -0700 | [diff] [blame] | 4578 | #ifdef CONFIG_IGB_DCA |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4579 | if (q_vector->adapter->flags & IGB_FLAG_DCA_ENABLED) |
| 4580 | igb_update_dca(q_vector); |
Jeb Cramer | fe4506b | 2008-07-08 15:07:55 -0700 | [diff] [blame] | 4581 | #endif |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4582 | if (q_vector->tx_ring) |
| 4583 | tx_clean_complete = igb_clean_tx_irq(q_vector); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4584 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4585 | if (q_vector->rx_ring) |
| 4586 | igb_clean_rx_irq_adv(q_vector, &work_done, budget); |
| 4587 | |
| 4588 | if (!tx_clean_complete) |
| 4589 | work_done = budget; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4590 | |
Alexander Duyck | 4654425 | 2009-02-19 20:39:04 -0800 | [diff] [blame] | 4591 | /* If not enough Rx work done, exit the polling mode */ |
Alexander Duyck | 5e6d5b1 | 2009-03-13 20:40:38 +0000 | [diff] [blame] | 4592 | if (work_done < budget) { |
Alexander Duyck | 4654425 | 2009-02-19 20:39:04 -0800 | [diff] [blame] | 4593 | napi_complete(napi); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4594 | igb_ring_irq_enable(q_vector); |
Alexander Duyck | 4654425 | 2009-02-19 20:39:04 -0800 | [diff] [blame] | 4595 | } |
| 4596 | |
| 4597 | return work_done; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4598 | } |
Al Viro | 6d8126f | 2008-03-16 22:23:24 +0000 | [diff] [blame] | 4599 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4600 | /** |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 4601 | * igb_systim_to_hwtstamp - convert system time value to hw timestamp |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 4602 | * @adapter: board private structure |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 4603 | * @shhwtstamps: timestamp structure to update |
| 4604 | * @regval: unsigned 64bit system time value. |
| 4605 | * |
| 4606 | * We need to convert the system time value stored in the RX/TXSTMP registers |
| 4607 | * into a hwtstamp which can be used by the upper level timestamping functions |
| 4608 | */ |
| 4609 | static void igb_systim_to_hwtstamp(struct igb_adapter *adapter, |
| 4610 | struct skb_shared_hwtstamps *shhwtstamps, |
| 4611 | u64 regval) |
| 4612 | { |
| 4613 | u64 ns; |
| 4614 | |
| 4615 | ns = timecounter_cyc2time(&adapter->clock, regval); |
| 4616 | timecompare_update(&adapter->compare, ns); |
| 4617 | memset(shhwtstamps, 0, sizeof(struct skb_shared_hwtstamps)); |
| 4618 | shhwtstamps->hwtstamp = ns_to_ktime(ns); |
| 4619 | shhwtstamps->syststamp = timecompare_transform(&adapter->compare, ns); |
| 4620 | } |
| 4621 | |
| 4622 | /** |
| 4623 | * igb_tx_hwtstamp - utility function which checks for TX time stamp |
| 4624 | * @q_vector: pointer to q_vector containing needed info |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 4625 | * @skb: packet that was just sent |
| 4626 | * |
| 4627 | * If we were asked to do hardware stamping and such a time stamp is |
| 4628 | * available, then it must have been for this skb here because we only |
| 4629 | * allow only one such packet into the queue. |
| 4630 | */ |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 4631 | static void igb_tx_hwtstamp(struct igb_q_vector *q_vector, struct sk_buff *skb) |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 4632 | { |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 4633 | struct igb_adapter *adapter = q_vector->adapter; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 4634 | union skb_shared_tx *shtx = skb_tx(skb); |
| 4635 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 4636 | struct skb_shared_hwtstamps shhwtstamps; |
| 4637 | u64 regval; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 4638 | |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 4639 | /* if skb does not support hw timestamp or TX stamp not valid exit */ |
| 4640 | if (likely(!shtx->hardware) || |
| 4641 | !(rd32(E1000_TSYNCTXCTL) & E1000_TSYNCTXCTL_VALID)) |
| 4642 | return; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 4643 | |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 4644 | regval = rd32(E1000_TXSTMPL); |
| 4645 | regval |= (u64)rd32(E1000_TXSTMPH) << 32; |
| 4646 | |
| 4647 | igb_systim_to_hwtstamp(adapter, &shhwtstamps, regval); |
| 4648 | skb_tstamp_tx(skb, &shhwtstamps); |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 4649 | } |
| 4650 | |
| 4651 | /** |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4652 | * igb_clean_tx_irq - Reclaim resources after transmit completes |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4653 | * @q_vector: pointer to q_vector containing needed info |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4654 | * returns true if ring is completely cleaned |
| 4655 | **/ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4656 | static bool igb_clean_tx_irq(struct igb_q_vector *q_vector) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4657 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4658 | struct igb_adapter *adapter = q_vector->adapter; |
| 4659 | struct igb_ring *tx_ring = q_vector->tx_ring; |
Alexander Duyck | e694e96 | 2009-10-27 15:53:06 +0000 | [diff] [blame] | 4660 | struct net_device *netdev = tx_ring->netdev; |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 4661 | struct e1000_hw *hw = &adapter->hw; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4662 | struct igb_buffer *buffer_info; |
| 4663 | struct sk_buff *skb; |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 4664 | union e1000_adv_tx_desc *tx_desc, *eop_desc; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4665 | unsigned int total_bytes = 0, total_packets = 0; |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 4666 | unsigned int i, eop, count = 0; |
| 4667 | bool cleaned = false; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4668 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4669 | i = tx_ring->next_to_clean; |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 4670 | eop = tx_ring->buffer_info[i].next_to_watch; |
| 4671 | eop_desc = E1000_TX_DESC_ADV(*tx_ring, eop); |
| 4672 | |
| 4673 | while ((eop_desc->wb.status & cpu_to_le32(E1000_TXD_STAT_DD)) && |
| 4674 | (count < tx_ring->count)) { |
| 4675 | for (cleaned = false; !cleaned; count++) { |
| 4676 | tx_desc = E1000_TX_DESC_ADV(*tx_ring, i); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4677 | buffer_info = &tx_ring->buffer_info[i]; |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 4678 | cleaned = (i == eop); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4679 | skb = buffer_info->skb; |
| 4680 | |
| 4681 | if (skb) { |
| 4682 | unsigned int segs, bytecount; |
| 4683 | /* gso_segs is currently only valid for tcp */ |
| 4684 | segs = skb_shinfo(skb)->gso_segs ?: 1; |
| 4685 | /* multiply data chunks by size of headers */ |
| 4686 | bytecount = ((segs - 1) * skb_headlen(skb)) + |
| 4687 | skb->len; |
| 4688 | total_packets += segs; |
| 4689 | total_bytes += bytecount; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 4690 | |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 4691 | igb_tx_hwtstamp(q_vector, skb); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4692 | } |
| 4693 | |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 4694 | igb_unmap_and_free_tx_resource(tx_ring, buffer_info); |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 4695 | tx_desc->wb.status = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4696 | |
| 4697 | i++; |
| 4698 | if (i == tx_ring->count) |
| 4699 | i = 0; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4700 | } |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 4701 | eop = tx_ring->buffer_info[i].next_to_watch; |
| 4702 | eop_desc = E1000_TX_DESC_ADV(*tx_ring, eop); |
| 4703 | } |
| 4704 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4705 | tx_ring->next_to_clean = i; |
| 4706 | |
Alexander Duyck | fc7d345 | 2008-08-26 04:25:08 -0700 | [diff] [blame] | 4707 | if (unlikely(count && |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4708 | netif_carrier_ok(netdev) && |
Alexander Duyck | c493ea4 | 2009-03-20 00:16:50 +0000 | [diff] [blame] | 4709 | igb_desc_unused(tx_ring) >= IGB_TX_QUEUE_WAKE)) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4710 | /* Make sure that anybody stopping the queue after this |
| 4711 | * sees the new next_to_clean. |
| 4712 | */ |
| 4713 | smp_mb(); |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 4714 | if (__netif_subqueue_stopped(netdev, tx_ring->queue_index) && |
| 4715 | !(test_bit(__IGB_DOWN, &adapter->state))) { |
| 4716 | netif_wake_subqueue(netdev, tx_ring->queue_index); |
Alexander Duyck | 04a5fcaa | 2009-10-27 15:52:27 +0000 | [diff] [blame] | 4717 | tx_ring->tx_stats.restart_queue++; |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 4718 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4719 | } |
| 4720 | |
| 4721 | if (tx_ring->detect_tx_hung) { |
| 4722 | /* Detect a transmit hang in hardware, this serializes the |
| 4723 | * check with the clearing of time_stamp and movement of i */ |
| 4724 | tx_ring->detect_tx_hung = false; |
| 4725 | if (tx_ring->buffer_info[i].time_stamp && |
| 4726 | time_after(jiffies, tx_ring->buffer_info[i].time_stamp + |
| 4727 | (adapter->tx_timeout_factor * HZ)) |
| 4728 | && !(rd32(E1000_STATUS) & |
| 4729 | E1000_STATUS_TXOFF)) { |
| 4730 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4731 | /* detected Tx unit hang */ |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 4732 | dev_err(&tx_ring->pdev->dev, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4733 | "Detected Tx Unit Hang\n" |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 4734 | " Tx Queue <%d>\n" |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4735 | " TDH <%x>\n" |
| 4736 | " TDT <%x>\n" |
| 4737 | " next_to_use <%x>\n" |
| 4738 | " next_to_clean <%x>\n" |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4739 | "buffer_info[next_to_clean]\n" |
| 4740 | " time_stamp <%lx>\n" |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 4741 | " next_to_watch <%x>\n" |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4742 | " jiffies <%lx>\n" |
| 4743 | " desc.status <%x>\n", |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 4744 | tx_ring->queue_index, |
Alexander Duyck | fce99e3 | 2009-10-27 15:51:27 +0000 | [diff] [blame] | 4745 | readl(tx_ring->head), |
| 4746 | readl(tx_ring->tail), |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4747 | tx_ring->next_to_use, |
| 4748 | tx_ring->next_to_clean, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4749 | tx_ring->buffer_info[i].time_stamp, |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 4750 | eop, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4751 | jiffies, |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 4752 | eop_desc->wb.status); |
Peter P Waskiewicz Jr | 661086d | 2008-07-08 15:06:51 -0700 | [diff] [blame] | 4753 | netif_stop_subqueue(netdev, tx_ring->queue_index); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4754 | } |
| 4755 | } |
| 4756 | tx_ring->total_bytes += total_bytes; |
| 4757 | tx_ring->total_packets += total_packets; |
Alexander Duyck | e21ed35 | 2008-07-08 15:07:24 -0700 | [diff] [blame] | 4758 | tx_ring->tx_stats.bytes += total_bytes; |
| 4759 | tx_ring->tx_stats.packets += total_packets; |
Ajit Khaparde | 8d24e93 | 2009-10-07 02:42:56 +0000 | [diff] [blame] | 4760 | netdev->stats.tx_bytes += total_bytes; |
| 4761 | netdev->stats.tx_packets += total_packets; |
Alexander Duyck | 0e014cb | 2008-12-26 01:33:18 -0800 | [diff] [blame] | 4762 | return (count < tx_ring->count); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4763 | } |
| 4764 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4765 | /** |
| 4766 | * igb_receive_skb - helper function to handle rx indications |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4767 | * @q_vector: structure containing interrupt and ring information |
| 4768 | * @skb: packet to send up |
| 4769 | * @vlan_tag: vlan tag for packet |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4770 | **/ |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4771 | static void igb_receive_skb(struct igb_q_vector *q_vector, |
| 4772 | struct sk_buff *skb, |
| 4773 | u16 vlan_tag) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4774 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4775 | struct igb_adapter *adapter = q_vector->adapter; |
Alexander Duyck | d335252 | 2008-07-08 15:12:13 -0700 | [diff] [blame] | 4776 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4777 | if (vlan_tag) |
| 4778 | vlan_gro_receive(&q_vector->napi, adapter->vlgrp, |
| 4779 | vlan_tag, skb); |
Alexander Duyck | 182ff8d | 2009-04-27 22:35:33 +0000 | [diff] [blame] | 4780 | else |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4781 | napi_gro_receive(&q_vector->napi, skb); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4782 | } |
| 4783 | |
Alexander Duyck | 04a5fcaa | 2009-10-27 15:52:27 +0000 | [diff] [blame] | 4784 | static inline void igb_rx_checksum_adv(struct igb_ring *ring, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4785 | u32 status_err, struct sk_buff *skb) |
| 4786 | { |
| 4787 | skb->ip_summed = CHECKSUM_NONE; |
| 4788 | |
| 4789 | /* Ignore Checksum bit is set or checksum is disabled through ethtool */ |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 4790 | if (!(ring->flags & IGB_RING_FLAG_RX_CSUM) || |
| 4791 | (status_err & E1000_RXD_STAT_IXSM)) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4792 | return; |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 4793 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4794 | /* TCP/UDP checksum error bit is set */ |
| 4795 | if (status_err & |
| 4796 | (E1000_RXDEXT_STATERR_TCPE | E1000_RXDEXT_STATERR_IPE)) { |
Jesse Brandeburg | b947356 | 2009-04-27 22:36:13 +0000 | [diff] [blame] | 4797 | /* |
| 4798 | * work around errata with sctp packets where the TCPE aka |
| 4799 | * L4E bit is set incorrectly on 64 byte (60 byte w/o crc) |
| 4800 | * packets, (aka let the stack check the crc32c) |
| 4801 | */ |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 4802 | if ((skb->len == 60) && |
| 4803 | (ring->flags & IGB_RING_FLAG_RX_SCTP_CSUM)) |
Alexander Duyck | 04a5fcaa | 2009-10-27 15:52:27 +0000 | [diff] [blame] | 4804 | ring->rx_stats.csum_err++; |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 4805 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4806 | /* let the stack verify checksum errors */ |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4807 | return; |
| 4808 | } |
| 4809 | /* It must be a TCP or UDP packet with a valid checksum */ |
| 4810 | if (status_err & (E1000_RXD_STAT_TCPCS | E1000_RXD_STAT_UDPCS)) |
| 4811 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 4812 | |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 4813 | dev_dbg(&ring->pdev->dev, "cksum success: bits %08X\n", status_err); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4814 | } |
| 4815 | |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 4816 | static inline void igb_rx_hwtstamp(struct igb_q_vector *q_vector, u32 staterr, |
| 4817 | struct sk_buff *skb) |
| 4818 | { |
| 4819 | struct igb_adapter *adapter = q_vector->adapter; |
| 4820 | struct e1000_hw *hw = &adapter->hw; |
| 4821 | u64 regval; |
| 4822 | |
| 4823 | /* |
| 4824 | * If this bit is set, then the RX registers contain the time stamp. No |
| 4825 | * other packet will be time stamped until we read these registers, so |
| 4826 | * read the registers to make them available again. Because only one |
| 4827 | * packet can be time stamped at a time, we know that the register |
| 4828 | * values must belong to this one here and therefore we don't need to |
| 4829 | * compare any of the additional attributes stored for it. |
| 4830 | * |
| 4831 | * If nothing went wrong, then it should have a skb_shared_tx that we |
| 4832 | * can turn into a skb_shared_hwtstamps. |
| 4833 | */ |
| 4834 | if (likely(!(staterr & E1000_RXDADV_STAT_TS))) |
| 4835 | return; |
| 4836 | if (!(rd32(E1000_TSYNCRXCTL) & E1000_TSYNCRXCTL_VALID)) |
| 4837 | return; |
| 4838 | |
| 4839 | regval = rd32(E1000_RXSTMPL); |
| 4840 | regval |= (u64)rd32(E1000_RXSTMPH) << 32; |
| 4841 | |
| 4842 | igb_systim_to_hwtstamp(adapter, skb_hwtstamps(skb), regval); |
| 4843 | } |
Alexander Duyck | 4c84485 | 2009-10-27 15:52:07 +0000 | [diff] [blame] | 4844 | static inline u16 igb_get_hlen(struct igb_ring *rx_ring, |
Alexander Duyck | 2d94d8a | 2009-07-23 18:10:06 +0000 | [diff] [blame] | 4845 | union e1000_adv_rx_desc *rx_desc) |
| 4846 | { |
| 4847 | /* HW will not DMA in data larger than the given buffer, even if it |
| 4848 | * parses the (NFS, of course) header to be larger. In that case, it |
| 4849 | * fills the header buffer and spills the rest into the page. |
| 4850 | */ |
| 4851 | u16 hlen = (le16_to_cpu(rx_desc->wb.lower.lo_dword.hdr_info) & |
| 4852 | E1000_RXDADV_HDRBUFLEN_MASK) >> E1000_RXDADV_HDRBUFLEN_SHIFT; |
Alexander Duyck | 4c84485 | 2009-10-27 15:52:07 +0000 | [diff] [blame] | 4853 | if (hlen > rx_ring->rx_buffer_len) |
| 4854 | hlen = rx_ring->rx_buffer_len; |
Alexander Duyck | 2d94d8a | 2009-07-23 18:10:06 +0000 | [diff] [blame] | 4855 | return hlen; |
| 4856 | } |
| 4857 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4858 | static bool igb_clean_rx_irq_adv(struct igb_q_vector *q_vector, |
| 4859 | int *work_done, int budget) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4860 | { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4861 | struct igb_ring *rx_ring = q_vector->rx_ring; |
Alexander Duyck | e694e96 | 2009-10-27 15:53:06 +0000 | [diff] [blame] | 4862 | struct net_device *netdev = rx_ring->netdev; |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 4863 | struct pci_dev *pdev = rx_ring->pdev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4864 | union e1000_adv_rx_desc *rx_desc , *next_rxd; |
| 4865 | struct igb_buffer *buffer_info , *next_buffer; |
| 4866 | struct sk_buff *skb; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4867 | bool cleaned = false; |
| 4868 | int cleaned_count = 0; |
| 4869 | unsigned int total_bytes = 0, total_packets = 0; |
Alexander Duyck | 73cd78f | 2009-02-12 18:16:59 +0000 | [diff] [blame] | 4870 | unsigned int i; |
Alexander Duyck | 2d94d8a | 2009-07-23 18:10:06 +0000 | [diff] [blame] | 4871 | u32 staterr; |
| 4872 | u16 length; |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4873 | u16 vlan_tag; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4874 | |
| 4875 | i = rx_ring->next_to_clean; |
Alexander Duyck | 69d3ca5 | 2009-02-06 23:15:04 +0000 | [diff] [blame] | 4876 | buffer_info = &rx_ring->buffer_info[i]; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4877 | rx_desc = E1000_RX_DESC_ADV(*rx_ring, i); |
| 4878 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); |
| 4879 | |
| 4880 | while (staterr & E1000_RXD_STAT_DD) { |
| 4881 | if (*work_done >= budget) |
| 4882 | break; |
| 4883 | (*work_done)++; |
Alexander Duyck | 69d3ca5 | 2009-02-06 23:15:04 +0000 | [diff] [blame] | 4884 | |
| 4885 | skb = buffer_info->skb; |
| 4886 | prefetch(skb->data - NET_IP_ALIGN); |
| 4887 | buffer_info->skb = NULL; |
| 4888 | |
| 4889 | i++; |
| 4890 | if (i == rx_ring->count) |
| 4891 | i = 0; |
| 4892 | next_rxd = E1000_RX_DESC_ADV(*rx_ring, i); |
| 4893 | prefetch(next_rxd); |
| 4894 | next_buffer = &rx_ring->buffer_info[i]; |
| 4895 | |
| 4896 | length = le16_to_cpu(rx_desc->wb.upper.length); |
| 4897 | cleaned = true; |
| 4898 | cleaned_count++; |
| 4899 | |
Alexander Duyck | 6ec43fe | 2009-10-27 15:50:48 +0000 | [diff] [blame] | 4900 | if (buffer_info->dma) { |
Alexander Duyck | 69d3ca5 | 2009-02-06 23:15:04 +0000 | [diff] [blame] | 4901 | pci_unmap_single(pdev, buffer_info->dma, |
Alexander Duyck | 4c84485 | 2009-10-27 15:52:07 +0000 | [diff] [blame] | 4902 | rx_ring->rx_buffer_len, |
Alexander Duyck | 69d3ca5 | 2009-02-06 23:15:04 +0000 | [diff] [blame] | 4903 | PCI_DMA_FROMDEVICE); |
Jesse Brandeburg | 91615f7 | 2009-06-30 12:45:15 +0000 | [diff] [blame] | 4904 | buffer_info->dma = 0; |
Alexander Duyck | 4c84485 | 2009-10-27 15:52:07 +0000 | [diff] [blame] | 4905 | if (rx_ring->rx_buffer_len >= IGB_RXBUFFER_1024) { |
Alexander Duyck | 6ec43fe | 2009-10-27 15:50:48 +0000 | [diff] [blame] | 4906 | skb_put(skb, length); |
| 4907 | goto send_up; |
| 4908 | } |
Alexander Duyck | 4c84485 | 2009-10-27 15:52:07 +0000 | [diff] [blame] | 4909 | skb_put(skb, igb_get_hlen(rx_ring, rx_desc)); |
Alexander Duyck | bf36c1a | 2008-07-08 15:11:40 -0700 | [diff] [blame] | 4910 | } |
| 4911 | |
| 4912 | if (length) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4913 | pci_unmap_page(pdev, buffer_info->page_dma, |
Alexander Duyck | bf36c1a | 2008-07-08 15:11:40 -0700 | [diff] [blame] | 4914 | PAGE_SIZE / 2, PCI_DMA_FROMDEVICE); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4915 | buffer_info->page_dma = 0; |
Alexander Duyck | bf36c1a | 2008-07-08 15:11:40 -0700 | [diff] [blame] | 4916 | |
| 4917 | skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags++, |
| 4918 | buffer_info->page, |
| 4919 | buffer_info->page_offset, |
| 4920 | length); |
| 4921 | |
Alexander Duyck | 6ec43fe | 2009-10-27 15:50:48 +0000 | [diff] [blame] | 4922 | if (page_count(buffer_info->page) != 1) |
Alexander Duyck | bf36c1a | 2008-07-08 15:11:40 -0700 | [diff] [blame] | 4923 | buffer_info->page = NULL; |
| 4924 | else |
| 4925 | get_page(buffer_info->page); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4926 | |
| 4927 | skb->len += length; |
| 4928 | skb->data_len += length; |
Alexander Duyck | bf36c1a | 2008-07-08 15:11:40 -0700 | [diff] [blame] | 4929 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4930 | skb->truesize += length; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4931 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4932 | |
Alexander Duyck | bf36c1a | 2008-07-08 15:11:40 -0700 | [diff] [blame] | 4933 | if (!(staterr & E1000_RXD_STAT_EOP)) { |
Alexander Duyck | b2d5653 | 2008-11-20 00:47:34 -0800 | [diff] [blame] | 4934 | buffer_info->skb = next_buffer->skb; |
| 4935 | buffer_info->dma = next_buffer->dma; |
| 4936 | next_buffer->skb = skb; |
| 4937 | next_buffer->dma = 0; |
Alexander Duyck | bf36c1a | 2008-07-08 15:11:40 -0700 | [diff] [blame] | 4938 | goto next_desc; |
| 4939 | } |
Alexander Duyck | 69d3ca5 | 2009-02-06 23:15:04 +0000 | [diff] [blame] | 4940 | send_up: |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4941 | if (staterr & E1000_RXDEXT_ERR_FRAME_ERR_MASK) { |
| 4942 | dev_kfree_skb_irq(skb); |
| 4943 | goto next_desc; |
| 4944 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4945 | |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 4946 | igb_rx_hwtstamp(q_vector, staterr, skb); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4947 | total_bytes += skb->len; |
| 4948 | total_packets++; |
| 4949 | |
Alexander Duyck | 85ad76b | 2009-10-27 15:52:46 +0000 | [diff] [blame] | 4950 | igb_rx_checksum_adv(rx_ring, staterr, skb); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4951 | |
| 4952 | skb->protocol = eth_type_trans(skb, netdev); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4953 | skb_record_rx_queue(skb, rx_ring->queue_index); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4954 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 4955 | vlan_tag = ((staterr & E1000_RXD_STAT_VP) ? |
| 4956 | le16_to_cpu(rx_desc->wb.upper.vlan) : 0); |
| 4957 | |
| 4958 | igb_receive_skb(q_vector, skb, vlan_tag); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4959 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4960 | next_desc: |
| 4961 | rx_desc->wb.upper.status_error = 0; |
| 4962 | |
| 4963 | /* return some buffers to hardware, one at a time is too slow */ |
| 4964 | if (cleaned_count >= IGB_RX_BUFFER_WRITE) { |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 4965 | igb_alloc_rx_buffers_adv(rx_ring, cleaned_count); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4966 | cleaned_count = 0; |
| 4967 | } |
| 4968 | |
| 4969 | /* use prefetched values */ |
| 4970 | rx_desc = next_rxd; |
| 4971 | buffer_info = next_buffer; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4972 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); |
| 4973 | } |
Alexander Duyck | bf36c1a | 2008-07-08 15:11:40 -0700 | [diff] [blame] | 4974 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4975 | rx_ring->next_to_clean = i; |
Alexander Duyck | c493ea4 | 2009-03-20 00:16:50 +0000 | [diff] [blame] | 4976 | cleaned_count = igb_desc_unused(rx_ring); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4977 | |
| 4978 | if (cleaned_count) |
Mitch Williams | 3b644cf | 2008-06-27 10:59:48 -0700 | [diff] [blame] | 4979 | igb_alloc_rx_buffers_adv(rx_ring, cleaned_count); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4980 | |
| 4981 | rx_ring->total_packets += total_packets; |
| 4982 | rx_ring->total_bytes += total_bytes; |
| 4983 | rx_ring->rx_stats.packets += total_packets; |
| 4984 | rx_ring->rx_stats.bytes += total_bytes; |
Ajit Khaparde | 8d24e93 | 2009-10-07 02:42:56 +0000 | [diff] [blame] | 4985 | netdev->stats.rx_bytes += total_bytes; |
| 4986 | netdev->stats.rx_packets += total_packets; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4987 | return cleaned; |
| 4988 | } |
| 4989 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4990 | /** |
| 4991 | * igb_alloc_rx_buffers_adv - Replace used receive buffers; packet split |
| 4992 | * @adapter: address of board private structure |
| 4993 | **/ |
Alexander Duyck | d7ee5b3 | 2009-10-27 15:54:23 +0000 | [diff] [blame] | 4994 | void igb_alloc_rx_buffers_adv(struct igb_ring *rx_ring, int cleaned_count) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4995 | { |
Alexander Duyck | e694e96 | 2009-10-27 15:53:06 +0000 | [diff] [blame] | 4996 | struct net_device *netdev = rx_ring->netdev; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 4997 | union e1000_adv_rx_desc *rx_desc; |
| 4998 | struct igb_buffer *buffer_info; |
| 4999 | struct sk_buff *skb; |
| 5000 | unsigned int i; |
Alexander Duyck | db76176 | 2009-02-06 23:15:25 +0000 | [diff] [blame] | 5001 | int bufsz; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5002 | |
| 5003 | i = rx_ring->next_to_use; |
| 5004 | buffer_info = &rx_ring->buffer_info[i]; |
| 5005 | |
Alexander Duyck | 4c84485 | 2009-10-27 15:52:07 +0000 | [diff] [blame] | 5006 | bufsz = rx_ring->rx_buffer_len; |
Alexander Duyck | db76176 | 2009-02-06 23:15:25 +0000 | [diff] [blame] | 5007 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5008 | while (cleaned_count--) { |
| 5009 | rx_desc = E1000_RX_DESC_ADV(*rx_ring, i); |
| 5010 | |
Alexander Duyck | 6ec43fe | 2009-10-27 15:50:48 +0000 | [diff] [blame] | 5011 | if ((bufsz < IGB_RXBUFFER_1024) && !buffer_info->page_dma) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5012 | if (!buffer_info->page) { |
Alexander Duyck | bf36c1a | 2008-07-08 15:11:40 -0700 | [diff] [blame] | 5013 | buffer_info->page = alloc_page(GFP_ATOMIC); |
| 5014 | if (!buffer_info->page) { |
Alexander Duyck | 04a5fcaa | 2009-10-27 15:52:27 +0000 | [diff] [blame] | 5015 | rx_ring->rx_stats.alloc_failed++; |
Alexander Duyck | bf36c1a | 2008-07-08 15:11:40 -0700 | [diff] [blame] | 5016 | goto no_buffers; |
| 5017 | } |
| 5018 | buffer_info->page_offset = 0; |
| 5019 | } else { |
| 5020 | buffer_info->page_offset ^= PAGE_SIZE / 2; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5021 | } |
| 5022 | buffer_info->page_dma = |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 5023 | pci_map_page(rx_ring->pdev, buffer_info->page, |
Alexander Duyck | bf36c1a | 2008-07-08 15:11:40 -0700 | [diff] [blame] | 5024 | buffer_info->page_offset, |
| 5025 | PAGE_SIZE / 2, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5026 | PCI_DMA_FROMDEVICE); |
| 5027 | } |
| 5028 | |
| 5029 | if (!buffer_info->skb) { |
Eric Dumazet | 89d71a6 | 2009-10-13 05:34:20 +0000 | [diff] [blame] | 5030 | skb = netdev_alloc_skb_ip_align(netdev, bufsz); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5031 | if (!skb) { |
Alexander Duyck | 04a5fcaa | 2009-10-27 15:52:27 +0000 | [diff] [blame] | 5032 | rx_ring->rx_stats.alloc_failed++; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5033 | goto no_buffers; |
| 5034 | } |
| 5035 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5036 | buffer_info->skb = skb; |
Alexander Duyck | 8078529 | 2009-10-27 15:51:47 +0000 | [diff] [blame] | 5037 | buffer_info->dma = pci_map_single(rx_ring->pdev, |
| 5038 | skb->data, |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5039 | bufsz, |
| 5040 | PCI_DMA_FROMDEVICE); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5041 | } |
| 5042 | /* Refresh the desc even if buffer_addrs didn't change because |
| 5043 | * each write-back erases this info. */ |
Alexander Duyck | 6ec43fe | 2009-10-27 15:50:48 +0000 | [diff] [blame] | 5044 | if (bufsz < IGB_RXBUFFER_1024) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5045 | rx_desc->read.pkt_addr = |
| 5046 | cpu_to_le64(buffer_info->page_dma); |
| 5047 | rx_desc->read.hdr_addr = cpu_to_le64(buffer_info->dma); |
| 5048 | } else { |
| 5049 | rx_desc->read.pkt_addr = |
| 5050 | cpu_to_le64(buffer_info->dma); |
| 5051 | rx_desc->read.hdr_addr = 0; |
| 5052 | } |
| 5053 | |
| 5054 | i++; |
| 5055 | if (i == rx_ring->count) |
| 5056 | i = 0; |
| 5057 | buffer_info = &rx_ring->buffer_info[i]; |
| 5058 | } |
| 5059 | |
| 5060 | no_buffers: |
| 5061 | if (rx_ring->next_to_use != i) { |
| 5062 | rx_ring->next_to_use = i; |
| 5063 | if (i == 0) |
| 5064 | i = (rx_ring->count - 1); |
| 5065 | else |
| 5066 | i--; |
| 5067 | |
| 5068 | /* Force memory writes to complete before letting h/w |
| 5069 | * know there are new descriptors to fetch. (Only |
| 5070 | * applicable for weak-ordered memory model archs, |
| 5071 | * such as IA-64). */ |
| 5072 | wmb(); |
Alexander Duyck | fce99e3 | 2009-10-27 15:51:27 +0000 | [diff] [blame] | 5073 | writel(i, rx_ring->tail); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5074 | } |
| 5075 | } |
| 5076 | |
| 5077 | /** |
| 5078 | * igb_mii_ioctl - |
| 5079 | * @netdev: |
| 5080 | * @ifreq: |
| 5081 | * @cmd: |
| 5082 | **/ |
| 5083 | static int igb_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) |
| 5084 | { |
| 5085 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 5086 | struct mii_ioctl_data *data = if_mii(ifr); |
| 5087 | |
| 5088 | if (adapter->hw.phy.media_type != e1000_media_type_copper) |
| 5089 | return -EOPNOTSUPP; |
| 5090 | |
| 5091 | switch (cmd) { |
| 5092 | case SIOCGMIIPHY: |
| 5093 | data->phy_id = adapter->hw.phy.addr; |
| 5094 | break; |
| 5095 | case SIOCGMIIREG: |
Alexander Duyck | f5f4cf0 | 2008-11-21 21:30:24 -0800 | [diff] [blame] | 5096 | if (igb_read_phy_reg(&adapter->hw, data->reg_num & 0x1F, |
| 5097 | &data->val_out)) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5098 | return -EIO; |
| 5099 | break; |
| 5100 | case SIOCSMIIREG: |
| 5101 | default: |
| 5102 | return -EOPNOTSUPP; |
| 5103 | } |
| 5104 | return 0; |
| 5105 | } |
| 5106 | |
| 5107 | /** |
Patrick Ohly | c6cb090 | 2009-02-12 05:03:42 +0000 | [diff] [blame] | 5108 | * igb_hwtstamp_ioctl - control hardware time stamping |
| 5109 | * @netdev: |
| 5110 | * @ifreq: |
| 5111 | * @cmd: |
| 5112 | * |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5113 | * Outgoing time stamping can be enabled and disabled. Play nice and |
| 5114 | * disable it when requested, although it shouldn't case any overhead |
| 5115 | * when no packet needs it. At most one packet in the queue may be |
| 5116 | * marked for time stamping, otherwise it would be impossible to tell |
| 5117 | * for sure to which packet the hardware time stamp belongs. |
| 5118 | * |
| 5119 | * Incoming time stamping has to be configured via the hardware |
| 5120 | * filters. Not all combinations are supported, in particular event |
| 5121 | * type has to be specified. Matching the kind of event packet is |
| 5122 | * not supported, with the exception of "all V2 events regardless of |
| 5123 | * level 2 or 4". |
| 5124 | * |
Patrick Ohly | c6cb090 | 2009-02-12 05:03:42 +0000 | [diff] [blame] | 5125 | **/ |
| 5126 | static int igb_hwtstamp_ioctl(struct net_device *netdev, |
| 5127 | struct ifreq *ifr, int cmd) |
| 5128 | { |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5129 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 5130 | struct e1000_hw *hw = &adapter->hw; |
Patrick Ohly | c6cb090 | 2009-02-12 05:03:42 +0000 | [diff] [blame] | 5131 | struct hwtstamp_config config; |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5132 | u32 tsync_tx_ctl = E1000_TSYNCTXCTL_ENABLED; |
| 5133 | u32 tsync_rx_ctl = E1000_TSYNCRXCTL_ENABLED; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5134 | u32 tsync_rx_cfg = 0; |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5135 | bool is_l4 = false; |
| 5136 | bool is_l2 = false; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5137 | u32 regval; |
Patrick Ohly | c6cb090 | 2009-02-12 05:03:42 +0000 | [diff] [blame] | 5138 | |
| 5139 | if (copy_from_user(&config, ifr->ifr_data, sizeof(config))) |
| 5140 | return -EFAULT; |
| 5141 | |
| 5142 | /* reserved for future extensions */ |
| 5143 | if (config.flags) |
| 5144 | return -EINVAL; |
| 5145 | |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5146 | switch (config.tx_type) { |
| 5147 | case HWTSTAMP_TX_OFF: |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5148 | tsync_tx_ctl = 0; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5149 | case HWTSTAMP_TX_ON: |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5150 | break; |
| 5151 | default: |
| 5152 | return -ERANGE; |
| 5153 | } |
Patrick Ohly | c6cb090 | 2009-02-12 05:03:42 +0000 | [diff] [blame] | 5154 | |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5155 | switch (config.rx_filter) { |
| 5156 | case HWTSTAMP_FILTER_NONE: |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5157 | tsync_rx_ctl = 0; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5158 | break; |
| 5159 | case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: |
| 5160 | case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: |
| 5161 | case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: |
| 5162 | case HWTSTAMP_FILTER_ALL: |
| 5163 | /* |
| 5164 | * register TSYNCRXCFG must be set, therefore it is not |
| 5165 | * possible to time stamp both Sync and Delay_Req messages |
| 5166 | * => fall back to time stamping all packets |
| 5167 | */ |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5168 | tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_ALL; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5169 | config.rx_filter = HWTSTAMP_FILTER_ALL; |
| 5170 | break; |
| 5171 | case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5172 | tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L4_V1; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5173 | tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V1_SYNC_MESSAGE; |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5174 | is_l4 = true; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5175 | break; |
| 5176 | case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5177 | tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L4_V1; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5178 | tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V1_DELAY_REQ_MESSAGE; |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5179 | is_l4 = true; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5180 | break; |
| 5181 | case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: |
| 5182 | case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5183 | tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L2_L4_V2; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5184 | tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V2_SYNC_MESSAGE; |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5185 | is_l2 = true; |
| 5186 | is_l4 = true; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5187 | config.rx_filter = HWTSTAMP_FILTER_SOME; |
| 5188 | break; |
| 5189 | case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: |
| 5190 | case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5191 | tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L2_L4_V2; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5192 | tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V2_DELAY_REQ_MESSAGE; |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5193 | is_l2 = true; |
| 5194 | is_l4 = true; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5195 | config.rx_filter = HWTSTAMP_FILTER_SOME; |
| 5196 | break; |
| 5197 | case HWTSTAMP_FILTER_PTP_V2_EVENT: |
| 5198 | case HWTSTAMP_FILTER_PTP_V2_SYNC: |
| 5199 | case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5200 | tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_EVENT_V2; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5201 | config.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT; |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5202 | is_l2 = true; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5203 | break; |
| 5204 | default: |
| 5205 | return -ERANGE; |
| 5206 | } |
| 5207 | |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5208 | if (hw->mac.type == e1000_82575) { |
| 5209 | if (tsync_rx_ctl | tsync_tx_ctl) |
| 5210 | return -EINVAL; |
| 5211 | return 0; |
| 5212 | } |
| 5213 | |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5214 | /* enable/disable TX */ |
| 5215 | regval = rd32(E1000_TSYNCTXCTL); |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5216 | regval &= ~E1000_TSYNCTXCTL_ENABLED; |
| 5217 | regval |= tsync_tx_ctl; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5218 | wr32(E1000_TSYNCTXCTL, regval); |
| 5219 | |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5220 | /* enable/disable RX */ |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5221 | regval = rd32(E1000_TSYNCRXCTL); |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5222 | regval &= ~(E1000_TSYNCRXCTL_ENABLED | E1000_TSYNCRXCTL_TYPE_MASK); |
| 5223 | regval |= tsync_rx_ctl; |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5224 | wr32(E1000_TSYNCRXCTL, regval); |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5225 | |
| 5226 | /* define which PTP packets are time stamped */ |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5227 | wr32(E1000_TSYNCRXCFG, tsync_rx_cfg); |
| 5228 | |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5229 | /* define ethertype filter for timestamped packets */ |
| 5230 | if (is_l2) |
| 5231 | wr32(E1000_ETQF(3), |
| 5232 | (E1000_ETQF_FILTER_ENABLE | /* enable filter */ |
| 5233 | E1000_ETQF_1588 | /* enable timestamping */ |
| 5234 | ETH_P_1588)); /* 1588 eth protocol type */ |
| 5235 | else |
| 5236 | wr32(E1000_ETQF(3), 0); |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5237 | |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5238 | #define PTP_PORT 319 |
| 5239 | /* L4 Queue Filter[3]: filter by destination port and protocol */ |
| 5240 | if (is_l4) { |
| 5241 | u32 ftqf = (IPPROTO_UDP /* UDP */ |
| 5242 | | E1000_FTQF_VF_BP /* VF not compared */ |
| 5243 | | E1000_FTQF_1588_TIME_STAMP /* Enable Timestamping */ |
| 5244 | | E1000_FTQF_MASK); /* mask all inputs */ |
| 5245 | ftqf &= ~E1000_FTQF_MASK_PROTO_BP; /* enable protocol check */ |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5246 | |
Alexander Duyck | c5b9bd5 | 2009-10-27 23:46:01 +0000 | [diff] [blame] | 5247 | wr32(E1000_IMIR(3), htons(PTP_PORT)); |
| 5248 | wr32(E1000_IMIREXT(3), |
| 5249 | (E1000_IMIREXT_SIZE_BP | E1000_IMIREXT_CTRL_BP)); |
| 5250 | if (hw->mac.type == e1000_82576) { |
| 5251 | /* enable source port check */ |
| 5252 | wr32(E1000_SPQF(3), htons(PTP_PORT)); |
| 5253 | ftqf &= ~E1000_FTQF_MASK_SOURCE_PORT_BP; |
| 5254 | } |
| 5255 | wr32(E1000_FTQF(3), ftqf); |
| 5256 | } else { |
| 5257 | wr32(E1000_FTQF(3), E1000_FTQF_MASK); |
| 5258 | } |
Patrick Ohly | 33af6bc | 2009-02-12 05:03:43 +0000 | [diff] [blame] | 5259 | wrfl(); |
| 5260 | |
| 5261 | adapter->hwtstamp_config = config; |
| 5262 | |
| 5263 | /* clear TX/RX time stamp registers, just to be sure */ |
| 5264 | regval = rd32(E1000_TXSTMPH); |
| 5265 | regval = rd32(E1000_RXSTMPH); |
| 5266 | |
| 5267 | return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ? |
| 5268 | -EFAULT : 0; |
Patrick Ohly | c6cb090 | 2009-02-12 05:03:42 +0000 | [diff] [blame] | 5269 | } |
| 5270 | |
| 5271 | /** |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5272 | * igb_ioctl - |
| 5273 | * @netdev: |
| 5274 | * @ifreq: |
| 5275 | * @cmd: |
| 5276 | **/ |
| 5277 | static int igb_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) |
| 5278 | { |
| 5279 | switch (cmd) { |
| 5280 | case SIOCGMIIPHY: |
| 5281 | case SIOCGMIIREG: |
| 5282 | case SIOCSMIIREG: |
| 5283 | return igb_mii_ioctl(netdev, ifr, cmd); |
Patrick Ohly | c6cb090 | 2009-02-12 05:03:42 +0000 | [diff] [blame] | 5284 | case SIOCSHWTSTAMP: |
| 5285 | return igb_hwtstamp_ioctl(netdev, ifr, cmd); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5286 | default: |
| 5287 | return -EOPNOTSUPP; |
| 5288 | } |
| 5289 | } |
| 5290 | |
Alexander Duyck | 009bc06 | 2009-07-23 18:08:35 +0000 | [diff] [blame] | 5291 | s32 igb_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value) |
| 5292 | { |
| 5293 | struct igb_adapter *adapter = hw->back; |
| 5294 | u16 cap_offset; |
| 5295 | |
| 5296 | cap_offset = pci_find_capability(adapter->pdev, PCI_CAP_ID_EXP); |
| 5297 | if (!cap_offset) |
| 5298 | return -E1000_ERR_CONFIG; |
| 5299 | |
| 5300 | pci_read_config_word(adapter->pdev, cap_offset + reg, value); |
| 5301 | |
| 5302 | return 0; |
| 5303 | } |
| 5304 | |
| 5305 | s32 igb_write_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value) |
| 5306 | { |
| 5307 | struct igb_adapter *adapter = hw->back; |
| 5308 | u16 cap_offset; |
| 5309 | |
| 5310 | cap_offset = pci_find_capability(adapter->pdev, PCI_CAP_ID_EXP); |
| 5311 | if (!cap_offset) |
| 5312 | return -E1000_ERR_CONFIG; |
| 5313 | |
| 5314 | pci_write_config_word(adapter->pdev, cap_offset + reg, *value); |
| 5315 | |
| 5316 | return 0; |
| 5317 | } |
| 5318 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5319 | static void igb_vlan_rx_register(struct net_device *netdev, |
| 5320 | struct vlan_group *grp) |
| 5321 | { |
| 5322 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 5323 | struct e1000_hw *hw = &adapter->hw; |
| 5324 | u32 ctrl, rctl; |
| 5325 | |
| 5326 | igb_irq_disable(adapter); |
| 5327 | adapter->vlgrp = grp; |
| 5328 | |
| 5329 | if (grp) { |
| 5330 | /* enable VLAN tag insert/strip */ |
| 5331 | ctrl = rd32(E1000_CTRL); |
| 5332 | ctrl |= E1000_CTRL_VME; |
| 5333 | wr32(E1000_CTRL, ctrl); |
| 5334 | |
| 5335 | /* enable VLAN receive filtering */ |
| 5336 | rctl = rd32(E1000_RCTL); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5337 | rctl &= ~E1000_RCTL_CFIEN; |
| 5338 | wr32(E1000_RCTL, rctl); |
| 5339 | igb_update_mng_vlan(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5340 | } else { |
| 5341 | /* disable VLAN tag insert/strip */ |
| 5342 | ctrl = rd32(E1000_CTRL); |
| 5343 | ctrl &= ~E1000_CTRL_VME; |
| 5344 | wr32(E1000_CTRL, ctrl); |
| 5345 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5346 | if (adapter->mng_vlan_id != (u16)IGB_MNG_VLAN_NONE) { |
| 5347 | igb_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id); |
| 5348 | adapter->mng_vlan_id = IGB_MNG_VLAN_NONE; |
| 5349 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5350 | } |
| 5351 | |
Alexander Duyck | e173952 | 2009-02-19 20:39:44 -0800 | [diff] [blame] | 5352 | igb_rlpml_set(adapter); |
| 5353 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5354 | if (!test_bit(__IGB_DOWN, &adapter->state)) |
| 5355 | igb_irq_enable(adapter); |
| 5356 | } |
| 5357 | |
| 5358 | static void igb_vlan_rx_add_vid(struct net_device *netdev, u16 vid) |
| 5359 | { |
| 5360 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 5361 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5362 | int pf_id = adapter->vfs_allocated_count; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5363 | |
Alexander Duyck | 28b0759 | 2009-02-06 23:20:31 +0000 | [diff] [blame] | 5364 | if ((hw->mng_cookie.status & |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5365 | E1000_MNG_DHCP_COOKIE_STATUS_VLAN) && |
| 5366 | (vid == adapter->mng_vlan_id)) |
| 5367 | return; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5368 | |
| 5369 | /* add vid to vlvf if sr-iov is enabled, |
| 5370 | * if that fails add directly to filter table */ |
| 5371 | if (igb_vlvf_set(adapter, vid, true, pf_id)) |
| 5372 | igb_vfta_set(hw, vid, true); |
| 5373 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5374 | } |
| 5375 | |
| 5376 | static void igb_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) |
| 5377 | { |
| 5378 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 5379 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5380 | int pf_id = adapter->vfs_allocated_count; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5381 | |
| 5382 | igb_irq_disable(adapter); |
| 5383 | vlan_group_set_device(adapter->vlgrp, vid, NULL); |
| 5384 | |
| 5385 | if (!test_bit(__IGB_DOWN, &adapter->state)) |
| 5386 | igb_irq_enable(adapter); |
| 5387 | |
| 5388 | if ((adapter->hw.mng_cookie.status & |
| 5389 | E1000_MNG_DHCP_COOKIE_STATUS_VLAN) && |
| 5390 | (vid == adapter->mng_vlan_id)) { |
| 5391 | /* release control to f/w */ |
| 5392 | igb_release_hw_control(adapter); |
| 5393 | return; |
| 5394 | } |
| 5395 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5396 | /* remove vid from vlvf if sr-iov is enabled, |
| 5397 | * if not in vlvf remove from vfta */ |
| 5398 | if (igb_vlvf_set(adapter, vid, false, pf_id)) |
| 5399 | igb_vfta_set(hw, vid, false); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5400 | } |
| 5401 | |
| 5402 | static void igb_restore_vlan(struct igb_adapter *adapter) |
| 5403 | { |
| 5404 | igb_vlan_rx_register(adapter->netdev, adapter->vlgrp); |
| 5405 | |
| 5406 | if (adapter->vlgrp) { |
| 5407 | u16 vid; |
| 5408 | for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) { |
| 5409 | if (!vlan_group_get_device(adapter->vlgrp, vid)) |
| 5410 | continue; |
| 5411 | igb_vlan_rx_add_vid(adapter->netdev, vid); |
| 5412 | } |
| 5413 | } |
| 5414 | } |
| 5415 | |
| 5416 | int igb_set_spd_dplx(struct igb_adapter *adapter, u16 spddplx) |
| 5417 | { |
| 5418 | struct e1000_mac_info *mac = &adapter->hw.mac; |
| 5419 | |
| 5420 | mac->autoneg = 0; |
| 5421 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5422 | switch (spddplx) { |
| 5423 | case SPEED_10 + DUPLEX_HALF: |
| 5424 | mac->forced_speed_duplex = ADVERTISE_10_HALF; |
| 5425 | break; |
| 5426 | case SPEED_10 + DUPLEX_FULL: |
| 5427 | mac->forced_speed_duplex = ADVERTISE_10_FULL; |
| 5428 | break; |
| 5429 | case SPEED_100 + DUPLEX_HALF: |
| 5430 | mac->forced_speed_duplex = ADVERTISE_100_HALF; |
| 5431 | break; |
| 5432 | case SPEED_100 + DUPLEX_FULL: |
| 5433 | mac->forced_speed_duplex = ADVERTISE_100_FULL; |
| 5434 | break; |
| 5435 | case SPEED_1000 + DUPLEX_FULL: |
| 5436 | mac->autoneg = 1; |
| 5437 | adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL; |
| 5438 | break; |
| 5439 | case SPEED_1000 + DUPLEX_HALF: /* not supported */ |
| 5440 | default: |
| 5441 | dev_err(&adapter->pdev->dev, |
| 5442 | "Unsupported Speed/Duplex configuration\n"); |
| 5443 | return -EINVAL; |
| 5444 | } |
| 5445 | return 0; |
| 5446 | } |
| 5447 | |
Rafael J. Wysocki | 3fe7c4c | 2009-03-31 21:23:50 +0000 | [diff] [blame] | 5448 | static int __igb_shutdown(struct pci_dev *pdev, bool *enable_wake) |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5449 | { |
| 5450 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 5451 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 5452 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 2d064c0 | 2008-07-08 15:10:12 -0700 | [diff] [blame] | 5453 | u32 ctrl, rctl, status; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5454 | u32 wufc = adapter->wol; |
| 5455 | #ifdef CONFIG_PM |
| 5456 | int retval = 0; |
| 5457 | #endif |
| 5458 | |
| 5459 | netif_device_detach(netdev); |
| 5460 | |
Alexander Duyck | a88f10e | 2008-07-08 15:13:38 -0700 | [diff] [blame] | 5461 | if (netif_running(netdev)) |
| 5462 | igb_close(netdev); |
| 5463 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5464 | igb_clear_interrupt_scheme(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5465 | |
| 5466 | #ifdef CONFIG_PM |
| 5467 | retval = pci_save_state(pdev); |
| 5468 | if (retval) |
| 5469 | return retval; |
| 5470 | #endif |
| 5471 | |
| 5472 | status = rd32(E1000_STATUS); |
| 5473 | if (status & E1000_STATUS_LU) |
| 5474 | wufc &= ~E1000_WUFC_LNKC; |
| 5475 | |
| 5476 | if (wufc) { |
| 5477 | igb_setup_rctl(adapter); |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 5478 | igb_set_rx_mode(netdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5479 | |
| 5480 | /* turn on all-multi mode if wake on multicast is enabled */ |
| 5481 | if (wufc & E1000_WUFC_MC) { |
| 5482 | rctl = rd32(E1000_RCTL); |
| 5483 | rctl |= E1000_RCTL_MPE; |
| 5484 | wr32(E1000_RCTL, rctl); |
| 5485 | } |
| 5486 | |
| 5487 | ctrl = rd32(E1000_CTRL); |
| 5488 | /* advertise wake from D3Cold */ |
| 5489 | #define E1000_CTRL_ADVD3WUC 0x00100000 |
| 5490 | /* phy power management enable */ |
| 5491 | #define E1000_CTRL_EN_PHY_PWR_MGMT 0x00200000 |
| 5492 | ctrl |= E1000_CTRL_ADVD3WUC; |
| 5493 | wr32(E1000_CTRL, ctrl); |
| 5494 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5495 | /* Allow time for pending master requests to run */ |
| 5496 | igb_disable_pcie_master(&adapter->hw); |
| 5497 | |
| 5498 | wr32(E1000_WUC, E1000_WUC_PME_EN); |
| 5499 | wr32(E1000_WUFC, wufc); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5500 | } else { |
| 5501 | wr32(E1000_WUC, 0); |
| 5502 | wr32(E1000_WUFC, 0); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5503 | } |
| 5504 | |
Rafael J. Wysocki | 3fe7c4c | 2009-03-31 21:23:50 +0000 | [diff] [blame] | 5505 | *enable_wake = wufc || adapter->en_mng_pt; |
| 5506 | if (!*enable_wake) |
Alexander Duyck | 2fb02a2 | 2009-09-14 08:22:54 +0000 | [diff] [blame] | 5507 | igb_shutdown_serdes_link_82575(hw); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5508 | |
| 5509 | /* Release control of h/w to f/w. If f/w is AMT enabled, this |
| 5510 | * would have already happened in close and is redundant. */ |
| 5511 | igb_release_hw_control(adapter); |
| 5512 | |
| 5513 | pci_disable_device(pdev); |
| 5514 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5515 | return 0; |
| 5516 | } |
| 5517 | |
| 5518 | #ifdef CONFIG_PM |
Rafael J. Wysocki | 3fe7c4c | 2009-03-31 21:23:50 +0000 | [diff] [blame] | 5519 | static int igb_suspend(struct pci_dev *pdev, pm_message_t state) |
| 5520 | { |
| 5521 | int retval; |
| 5522 | bool wake; |
| 5523 | |
| 5524 | retval = __igb_shutdown(pdev, &wake); |
| 5525 | if (retval) |
| 5526 | return retval; |
| 5527 | |
| 5528 | if (wake) { |
| 5529 | pci_prepare_to_sleep(pdev); |
| 5530 | } else { |
| 5531 | pci_wake_from_d3(pdev, false); |
| 5532 | pci_set_power_state(pdev, PCI_D3hot); |
| 5533 | } |
| 5534 | |
| 5535 | return 0; |
| 5536 | } |
| 5537 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5538 | static int igb_resume(struct pci_dev *pdev) |
| 5539 | { |
| 5540 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 5541 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 5542 | struct e1000_hw *hw = &adapter->hw; |
| 5543 | u32 err; |
| 5544 | |
| 5545 | pci_set_power_state(pdev, PCI_D0); |
| 5546 | pci_restore_state(pdev); |
Taku Izumi | 42bfd33a | 2008-06-20 12:10:30 +0900 | [diff] [blame] | 5547 | |
Alexander Duyck | aed5dec | 2009-02-06 23:16:04 +0000 | [diff] [blame] | 5548 | err = pci_enable_device_mem(pdev); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5549 | if (err) { |
| 5550 | dev_err(&pdev->dev, |
| 5551 | "igb: Cannot enable PCI device from suspend\n"); |
| 5552 | return err; |
| 5553 | } |
| 5554 | pci_set_master(pdev); |
| 5555 | |
| 5556 | pci_enable_wake(pdev, PCI_D3hot, 0); |
| 5557 | pci_enable_wake(pdev, PCI_D3cold, 0); |
| 5558 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5559 | if (igb_init_interrupt_scheme(adapter)) { |
Alexander Duyck | a88f10e | 2008-07-08 15:13:38 -0700 | [diff] [blame] | 5560 | dev_err(&pdev->dev, "Unable to allocate memory for queues\n"); |
| 5561 | return -ENOMEM; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5562 | } |
| 5563 | |
| 5564 | /* e1000_power_up_phy(adapter); */ |
| 5565 | |
| 5566 | igb_reset(adapter); |
Alexander Duyck | a8564f0 | 2009-02-06 23:21:10 +0000 | [diff] [blame] | 5567 | |
| 5568 | /* let the f/w know that the h/w is now under the control of the |
| 5569 | * driver. */ |
| 5570 | igb_get_hw_control(adapter); |
| 5571 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5572 | wr32(E1000_WUS, ~0); |
| 5573 | |
Alexander Duyck | a88f10e | 2008-07-08 15:13:38 -0700 | [diff] [blame] | 5574 | if (netif_running(netdev)) { |
| 5575 | err = igb_open(netdev); |
| 5576 | if (err) |
| 5577 | return err; |
| 5578 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5579 | |
| 5580 | netif_device_attach(netdev); |
| 5581 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5582 | return 0; |
| 5583 | } |
| 5584 | #endif |
| 5585 | |
| 5586 | static void igb_shutdown(struct pci_dev *pdev) |
| 5587 | { |
Rafael J. Wysocki | 3fe7c4c | 2009-03-31 21:23:50 +0000 | [diff] [blame] | 5588 | bool wake; |
| 5589 | |
| 5590 | __igb_shutdown(pdev, &wake); |
| 5591 | |
| 5592 | if (system_state == SYSTEM_POWER_OFF) { |
| 5593 | pci_wake_from_d3(pdev, wake); |
| 5594 | pci_set_power_state(pdev, PCI_D3hot); |
| 5595 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5596 | } |
| 5597 | |
| 5598 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 5599 | /* |
| 5600 | * Polling 'interrupt' - used by things like netconsole to send skbs |
| 5601 | * without having to re-enable interrupts. It's not called while |
| 5602 | * the interrupt routine is executing. |
| 5603 | */ |
| 5604 | static void igb_netpoll(struct net_device *netdev) |
| 5605 | { |
| 5606 | struct igb_adapter *adapter = netdev_priv(netdev); |
Alexander Duyck | eebbbdb | 2009-02-06 23:19:29 +0000 | [diff] [blame] | 5607 | struct e1000_hw *hw = &adapter->hw; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5608 | int i; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5609 | |
Alexander Duyck | eebbbdb | 2009-02-06 23:19:29 +0000 | [diff] [blame] | 5610 | if (!adapter->msix_entries) { |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5611 | struct igb_q_vector *q_vector = adapter->q_vector[0]; |
Alexander Duyck | eebbbdb | 2009-02-06 23:19:29 +0000 | [diff] [blame] | 5612 | igb_irq_disable(adapter); |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5613 | napi_schedule(&q_vector->napi); |
Alexander Duyck | eebbbdb | 2009-02-06 23:19:29 +0000 | [diff] [blame] | 5614 | return; |
| 5615 | } |
Alexander Duyck | 7dfc16f | 2008-07-08 15:10:46 -0700 | [diff] [blame] | 5616 | |
Alexander Duyck | 047e003 | 2009-10-27 15:49:27 +0000 | [diff] [blame] | 5617 | for (i = 0; i < adapter->num_q_vectors; i++) { |
| 5618 | struct igb_q_vector *q_vector = adapter->q_vector[i]; |
| 5619 | wr32(E1000_EIMC, q_vector->eims_value); |
| 5620 | napi_schedule(&q_vector->napi); |
Alexander Duyck | eebbbdb | 2009-02-06 23:19:29 +0000 | [diff] [blame] | 5621 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5622 | } |
| 5623 | #endif /* CONFIG_NET_POLL_CONTROLLER */ |
| 5624 | |
| 5625 | /** |
| 5626 | * igb_io_error_detected - called when PCI error is detected |
| 5627 | * @pdev: Pointer to PCI device |
| 5628 | * @state: The current pci connection state |
| 5629 | * |
| 5630 | * This function is called after a PCI bus error affecting |
| 5631 | * this device has been detected. |
| 5632 | */ |
| 5633 | static pci_ers_result_t igb_io_error_detected(struct pci_dev *pdev, |
| 5634 | pci_channel_state_t state) |
| 5635 | { |
| 5636 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 5637 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 5638 | |
| 5639 | netif_device_detach(netdev); |
| 5640 | |
Alexander Duyck | 59ed6ee | 2009-06-30 12:46:34 +0000 | [diff] [blame] | 5641 | if (state == pci_channel_io_perm_failure) |
| 5642 | return PCI_ERS_RESULT_DISCONNECT; |
| 5643 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5644 | if (netif_running(netdev)) |
| 5645 | igb_down(adapter); |
| 5646 | pci_disable_device(pdev); |
| 5647 | |
| 5648 | /* Request a slot slot reset. */ |
| 5649 | return PCI_ERS_RESULT_NEED_RESET; |
| 5650 | } |
| 5651 | |
| 5652 | /** |
| 5653 | * igb_io_slot_reset - called after the pci bus has been reset. |
| 5654 | * @pdev: Pointer to PCI device |
| 5655 | * |
| 5656 | * Restart the card from scratch, as if from a cold-boot. Implementation |
| 5657 | * resembles the first-half of the igb_resume routine. |
| 5658 | */ |
| 5659 | static pci_ers_result_t igb_io_slot_reset(struct pci_dev *pdev) |
| 5660 | { |
| 5661 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 5662 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 5663 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 40a914f | 2008-11-27 00:24:37 -0800 | [diff] [blame] | 5664 | pci_ers_result_t result; |
Taku Izumi | 42bfd33a | 2008-06-20 12:10:30 +0900 | [diff] [blame] | 5665 | int err; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5666 | |
Alexander Duyck | aed5dec | 2009-02-06 23:16:04 +0000 | [diff] [blame] | 5667 | if (pci_enable_device_mem(pdev)) { |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5668 | dev_err(&pdev->dev, |
| 5669 | "Cannot re-enable PCI device after reset.\n"); |
Alexander Duyck | 40a914f | 2008-11-27 00:24:37 -0800 | [diff] [blame] | 5670 | result = PCI_ERS_RESULT_DISCONNECT; |
| 5671 | } else { |
| 5672 | pci_set_master(pdev); |
| 5673 | pci_restore_state(pdev); |
| 5674 | |
| 5675 | pci_enable_wake(pdev, PCI_D3hot, 0); |
| 5676 | pci_enable_wake(pdev, PCI_D3cold, 0); |
| 5677 | |
| 5678 | igb_reset(adapter); |
| 5679 | wr32(E1000_WUS, ~0); |
| 5680 | result = PCI_ERS_RESULT_RECOVERED; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5681 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5682 | |
Jeff Kirsher | ea943d4 | 2008-12-11 20:34:19 -0800 | [diff] [blame] | 5683 | err = pci_cleanup_aer_uncorrect_error_status(pdev); |
| 5684 | if (err) { |
| 5685 | dev_err(&pdev->dev, "pci_cleanup_aer_uncorrect_error_status " |
| 5686 | "failed 0x%0x\n", err); |
| 5687 | /* non-fatal, continue */ |
| 5688 | } |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5689 | |
Alexander Duyck | 40a914f | 2008-11-27 00:24:37 -0800 | [diff] [blame] | 5690 | return result; |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5691 | } |
| 5692 | |
| 5693 | /** |
| 5694 | * igb_io_resume - called when traffic can start flowing again. |
| 5695 | * @pdev: Pointer to PCI device |
| 5696 | * |
| 5697 | * This callback is called when the error recovery driver tells us that |
| 5698 | * its OK to resume normal operation. Implementation resembles the |
| 5699 | * second-half of the igb_resume routine. |
| 5700 | */ |
| 5701 | static void igb_io_resume(struct pci_dev *pdev) |
| 5702 | { |
| 5703 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 5704 | struct igb_adapter *adapter = netdev_priv(netdev); |
| 5705 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5706 | if (netif_running(netdev)) { |
| 5707 | if (igb_up(adapter)) { |
| 5708 | dev_err(&pdev->dev, "igb_up failed after reset\n"); |
| 5709 | return; |
| 5710 | } |
| 5711 | } |
| 5712 | |
| 5713 | netif_device_attach(netdev); |
| 5714 | |
| 5715 | /* let the f/w know that the h/w is now under the control of the |
| 5716 | * driver. */ |
| 5717 | igb_get_hw_control(adapter); |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5718 | } |
| 5719 | |
Alexander Duyck | 26ad917 | 2009-10-05 06:32:49 +0000 | [diff] [blame] | 5720 | static void igb_rar_set_qsel(struct igb_adapter *adapter, u8 *addr, u32 index, |
| 5721 | u8 qsel) |
| 5722 | { |
| 5723 | u32 rar_low, rar_high; |
| 5724 | struct e1000_hw *hw = &adapter->hw; |
| 5725 | |
| 5726 | /* HW expects these in little endian so we reverse the byte order |
| 5727 | * from network order (big endian) to little endian |
| 5728 | */ |
| 5729 | rar_low = ((u32) addr[0] | ((u32) addr[1] << 8) | |
| 5730 | ((u32) addr[2] << 16) | ((u32) addr[3] << 24)); |
| 5731 | rar_high = ((u32) addr[4] | ((u32) addr[5] << 8)); |
| 5732 | |
| 5733 | /* Indicate to hardware the Address is Valid. */ |
| 5734 | rar_high |= E1000_RAH_AV; |
| 5735 | |
| 5736 | if (hw->mac.type == e1000_82575) |
| 5737 | rar_high |= E1000_RAH_POOL_1 * qsel; |
| 5738 | else |
| 5739 | rar_high |= E1000_RAH_POOL_1 << qsel; |
| 5740 | |
| 5741 | wr32(E1000_RAL(index), rar_low); |
| 5742 | wrfl(); |
| 5743 | wr32(E1000_RAH(index), rar_high); |
| 5744 | wrfl(); |
| 5745 | } |
| 5746 | |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5747 | static int igb_set_vf_mac(struct igb_adapter *adapter, |
| 5748 | int vf, unsigned char *mac_addr) |
| 5749 | { |
| 5750 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | ff41f8d | 2009-09-03 14:48:56 +0000 | [diff] [blame] | 5751 | /* VF MAC addresses start at end of receive addresses and moves |
| 5752 | * torwards the first, as a result a collision should not be possible */ |
| 5753 | int rar_entry = hw->mac.rar_entry_count - (vf + 1); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5754 | |
Alexander Duyck | 3768011 | 2009-02-19 20:40:30 -0800 | [diff] [blame] | 5755 | memcpy(adapter->vf_data[vf].vf_mac_addresses, mac_addr, ETH_ALEN); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5756 | |
Alexander Duyck | 26ad917 | 2009-10-05 06:32:49 +0000 | [diff] [blame] | 5757 | igb_rar_set_qsel(adapter, mac_addr, rar_entry, vf); |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5758 | |
| 5759 | return 0; |
| 5760 | } |
| 5761 | |
| 5762 | static void igb_vmm_control(struct igb_adapter *adapter) |
| 5763 | { |
| 5764 | struct e1000_hw *hw = &adapter->hw; |
Alexander Duyck | 10d8e90 | 2009-10-27 15:54:04 +0000 | [diff] [blame] | 5765 | u32 reg; |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5766 | |
Alexander Duyck | d496030 | 2009-10-27 15:53:45 +0000 | [diff] [blame] | 5767 | /* replication is not supported for 82575 */ |
| 5768 | if (hw->mac.type == e1000_82575) |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5769 | return; |
| 5770 | |
Alexander Duyck | 10d8e90 | 2009-10-27 15:54:04 +0000 | [diff] [blame] | 5771 | /* enable replication vlan tag stripping */ |
| 5772 | reg = rd32(E1000_RPLOLR); |
| 5773 | reg |= E1000_RPLOLR_STRVLAN; |
| 5774 | wr32(E1000_RPLOLR, reg); |
| 5775 | |
| 5776 | /* notify HW that the MAC is adding vlan tags */ |
| 5777 | reg = rd32(E1000_DTXCTL); |
| 5778 | reg |= E1000_DTXCTL_VLAN_ADDED; |
| 5779 | wr32(E1000_DTXCTL, reg); |
| 5780 | |
Alexander Duyck | d496030 | 2009-10-27 15:53:45 +0000 | [diff] [blame] | 5781 | if (adapter->vfs_allocated_count) { |
| 5782 | igb_vmdq_set_loopback_pf(hw, true); |
| 5783 | igb_vmdq_set_replication_pf(hw, true); |
| 5784 | } else { |
| 5785 | igb_vmdq_set_loopback_pf(hw, false); |
| 5786 | igb_vmdq_set_replication_pf(hw, false); |
| 5787 | } |
Alexander Duyck | 4ae196d | 2009-02-19 20:40:07 -0800 | [diff] [blame] | 5788 | } |
| 5789 | |
Auke Kok | 9d5c824 | 2008-01-24 02:22:38 -0800 | [diff] [blame] | 5790 | /* igb_main.c */ |