Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1 | /******************************************************************************* |
| 2 | |
| 3 | Intel 10 Gigabit PCI Express Linux driver |
Shannon Nelson | 8c47eaa | 2010-01-13 01:49:34 +0000 | [diff] [blame] | 4 | Copyright(c) 1999 - 2010 Intel Corporation. |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [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: |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 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/types.h> |
| 29 | #include <linux/module.h> |
| 30 | #include <linux/pci.h> |
| 31 | #include <linux/netdevice.h> |
| 32 | #include <linux/vmalloc.h> |
| 33 | #include <linux/string.h> |
| 34 | #include <linux/in.h> |
| 35 | #include <linux/ip.h> |
| 36 | #include <linux/tcp.h> |
Lucy Liu | 6012786 | 2009-07-22 14:07:33 +0000 | [diff] [blame] | 37 | #include <linux/pkt_sched.h> |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 38 | #include <linux/ipv6.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 39 | #include <linux/slab.h> |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 40 | #include <net/checksum.h> |
| 41 | #include <net/ip6_checksum.h> |
| 42 | #include <linux/ethtool.h> |
| 43 | #include <linux/if_vlan.h> |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 44 | #include <scsi/fc/fc_fcoe.h> |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 45 | |
| 46 | #include "ixgbe.h" |
| 47 | #include "ixgbe_common.h" |
Don Skidmore | ee5f784 | 2009-11-06 12:56:20 +0000 | [diff] [blame] | 48 | #include "ixgbe_dcb_82599.h" |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 49 | #include "ixgbe_sriov.h" |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 50 | |
| 51 | char ixgbe_driver_name[] = "ixgbe"; |
Stephen Hemminger | 9c8eb72 | 2007-10-29 10:46:24 -0700 | [diff] [blame] | 52 | static const char ixgbe_driver_string[] = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 53 | "Intel(R) 10 Gigabit PCI Express Network Driver"; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 54 | |
Don Skidmore | 99faf68 | 2010-07-19 14:00:47 +0000 | [diff] [blame] | 55 | #define DRV_VERSION "2.0.84-k2" |
Stephen Hemminger | 9c8eb72 | 2007-10-29 10:46:24 -0700 | [diff] [blame] | 56 | const char ixgbe_driver_version[] = DRV_VERSION; |
Shannon Nelson | 8c47eaa | 2010-01-13 01:49:34 +0000 | [diff] [blame] | 57 | static char ixgbe_copyright[] = "Copyright (c) 1999-2010 Intel Corporation."; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 58 | |
| 59 | static const struct ixgbe_info *ixgbe_info_tbl[] = { |
Peter P Waskiewicz | b461724 | 2008-09-11 20:04:46 -0700 | [diff] [blame] | 60 | [board_82598] = &ixgbe_82598_info, |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 61 | [board_82599] = &ixgbe_82599_info, |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 62 | }; |
| 63 | |
| 64 | /* ixgbe_pci_tbl - PCI Device ID Table |
| 65 | * |
| 66 | * Wildcard entries (PCI_ANY_ID) should come last |
| 67 | * Last entry must be all 0s |
| 68 | * |
| 69 | * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, |
| 70 | * Class, Class Mask, private data (not used) } |
| 71 | */ |
Alexey Dobriyan | a3aa188 | 2010-01-07 11:58:11 +0000 | [diff] [blame] | 72 | static DEFINE_PCI_DEVICE_TABLE(ixgbe_pci_tbl) = { |
Don Skidmore | 1e336d0 | 2009-01-26 20:57:51 -0800 | [diff] [blame] | 73 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598), |
| 74 | board_82598 }, |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 75 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_DUAL_PORT), |
Auke Kok | 3957d63 | 2007-10-31 15:22:10 -0700 | [diff] [blame] | 76 | board_82598 }, |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 77 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_SINGLE_PORT), |
Auke Kok | 3957d63 | 2007-10-31 15:22:10 -0700 | [diff] [blame] | 78 | board_82598 }, |
Jesse Brandeburg | 0befdb3 | 2008-10-31 00:46:40 -0700 | [diff] [blame] | 79 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT), |
| 80 | board_82598 }, |
Peter P Waskiewicz Jr | 3845bec | 2009-07-16 15:50:52 +0000 | [diff] [blame] | 81 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT2), |
| 82 | board_82598 }, |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 83 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_CX4), |
Auke Kok | 3957d63 | 2007-10-31 15:22:10 -0700 | [diff] [blame] | 84 | board_82598 }, |
Jesse Brandeburg | 8d792cd | 2008-08-08 16:24:19 -0700 | [diff] [blame] | 85 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_CX4_DUAL_PORT), |
| 86 | board_82598 }, |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 87 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_DA_DUAL_PORT), |
| 88 | board_82598 }, |
| 89 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM), |
| 90 | board_82598 }, |
Jesse Brandeburg | b95f5fc | 2008-09-11 19:58:59 -0700 | [diff] [blame] | 91 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_XF_LR), |
| 92 | board_82598 }, |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 93 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_SFP_LOM), |
| 94 | board_82598 }, |
Don Skidmore | 2f21bdd | 2009-02-01 01:18:23 -0800 | [diff] [blame] | 95 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_BX), |
| 96 | board_82598 }, |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 97 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4), |
| 98 | board_82599 }, |
Peter P Waskiewicz Jr | 1fcf03e | 2009-05-17 20:58:04 +0000 | [diff] [blame] | 99 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_XAUI_LOM), |
| 100 | board_82599 }, |
Don Skidmore | 74757d4 | 2009-12-08 07:22:23 +0000 | [diff] [blame] | 101 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KR), |
| 102 | board_82599 }, |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 103 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP), |
| 104 | board_82599 }, |
Don Skidmore | 38ad1c8 | 2009-10-08 15:35:58 +0000 | [diff] [blame] | 105 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_EM), |
| 106 | board_82599 }, |
Don Skidmore | dbfec66 | 2009-10-02 08:58:25 +0000 | [diff] [blame] | 107 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4_MEZZ), |
| 108 | board_82599 }, |
Peter P Waskiewicz Jr | 8911184 | 2009-09-14 07:47:49 +0000 | [diff] [blame] | 109 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4), |
| 110 | board_82599 }, |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 111 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_T3_LOM), |
| 112 | board_82599 }, |
Don Skidmore | 312eb93 | 2009-10-02 08:58:04 +0000 | [diff] [blame] | 113 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_COMBO_BACKPLANE), |
| 114 | board_82599 }, |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 115 | |
| 116 | /* required last entry */ |
| 117 | {0, } |
| 118 | }; |
| 119 | MODULE_DEVICE_TABLE(pci, ixgbe_pci_tbl); |
| 120 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 121 | #ifdef CONFIG_IXGBE_DCA |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 122 | static int ixgbe_notify_dca(struct notifier_block *, unsigned long event, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 123 | void *p); |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 124 | static struct notifier_block dca_notifier = { |
| 125 | .notifier_call = ixgbe_notify_dca, |
| 126 | .next = NULL, |
| 127 | .priority = 0 |
| 128 | }; |
| 129 | #endif |
| 130 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 131 | #ifdef CONFIG_PCI_IOV |
| 132 | static unsigned int max_vfs; |
| 133 | module_param(max_vfs, uint, 0); |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 134 | MODULE_PARM_DESC(max_vfs, |
| 135 | "Maximum number of virtual functions to allocate per physical function"); |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 136 | #endif /* CONFIG_PCI_IOV */ |
| 137 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 138 | MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>"); |
| 139 | MODULE_DESCRIPTION("Intel(R) 10 Gigabit PCI Express Network Driver"); |
| 140 | MODULE_LICENSE("GPL"); |
| 141 | MODULE_VERSION(DRV_VERSION); |
| 142 | |
| 143 | #define DEFAULT_DEBUG_LEVEL_SHIFT 3 |
| 144 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 145 | static inline void ixgbe_disable_sriov(struct ixgbe_adapter *adapter) |
| 146 | { |
| 147 | struct ixgbe_hw *hw = &adapter->hw; |
| 148 | u32 gcr; |
| 149 | u32 gpie; |
| 150 | u32 vmdctl; |
| 151 | |
| 152 | #ifdef CONFIG_PCI_IOV |
| 153 | /* disable iov and allow time for transactions to clear */ |
| 154 | pci_disable_sriov(adapter->pdev); |
| 155 | #endif |
| 156 | |
| 157 | /* turn off device IOV mode */ |
| 158 | gcr = IXGBE_READ_REG(hw, IXGBE_GCR_EXT); |
| 159 | gcr &= ~(IXGBE_GCR_EXT_SRIOV); |
| 160 | IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr); |
| 161 | gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); |
| 162 | gpie &= ~IXGBE_GPIE_VTMODE_MASK; |
| 163 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); |
| 164 | |
| 165 | /* set default pool back to 0 */ |
| 166 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); |
| 167 | vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; |
| 168 | IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); |
| 169 | |
| 170 | /* take a breather then clean up driver data */ |
| 171 | msleep(100); |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 172 | |
| 173 | kfree(adapter->vfinfo); |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 174 | adapter->vfinfo = NULL; |
| 175 | |
| 176 | adapter->num_vfs = 0; |
| 177 | adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; |
| 178 | } |
| 179 | |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 180 | struct ixgbe_reg_info { |
| 181 | u32 ofs; |
| 182 | char *name; |
| 183 | }; |
| 184 | |
| 185 | static const struct ixgbe_reg_info ixgbe_reg_info_tbl[] = { |
| 186 | |
| 187 | /* General Registers */ |
| 188 | {IXGBE_CTRL, "CTRL"}, |
| 189 | {IXGBE_STATUS, "STATUS"}, |
| 190 | {IXGBE_CTRL_EXT, "CTRL_EXT"}, |
| 191 | |
| 192 | /* Interrupt Registers */ |
| 193 | {IXGBE_EICR, "EICR"}, |
| 194 | |
| 195 | /* RX Registers */ |
| 196 | {IXGBE_SRRCTL(0), "SRRCTL"}, |
| 197 | {IXGBE_DCA_RXCTRL(0), "DRXCTL"}, |
| 198 | {IXGBE_RDLEN(0), "RDLEN"}, |
| 199 | {IXGBE_RDH(0), "RDH"}, |
| 200 | {IXGBE_RDT(0), "RDT"}, |
| 201 | {IXGBE_RXDCTL(0), "RXDCTL"}, |
| 202 | {IXGBE_RDBAL(0), "RDBAL"}, |
| 203 | {IXGBE_RDBAH(0), "RDBAH"}, |
| 204 | |
| 205 | /* TX Registers */ |
| 206 | {IXGBE_TDBAL(0), "TDBAL"}, |
| 207 | {IXGBE_TDBAH(0), "TDBAH"}, |
| 208 | {IXGBE_TDLEN(0), "TDLEN"}, |
| 209 | {IXGBE_TDH(0), "TDH"}, |
| 210 | {IXGBE_TDT(0), "TDT"}, |
| 211 | {IXGBE_TXDCTL(0), "TXDCTL"}, |
| 212 | |
| 213 | /* List Terminator */ |
| 214 | {} |
| 215 | }; |
| 216 | |
| 217 | |
| 218 | /* |
| 219 | * ixgbe_regdump - register printout routine |
| 220 | */ |
| 221 | static void ixgbe_regdump(struct ixgbe_hw *hw, struct ixgbe_reg_info *reginfo) |
| 222 | { |
| 223 | int i = 0, j = 0; |
| 224 | char rname[16]; |
| 225 | u32 regs[64]; |
| 226 | |
| 227 | switch (reginfo->ofs) { |
| 228 | case IXGBE_SRRCTL(0): |
| 229 | for (i = 0; i < 64; i++) |
| 230 | regs[i] = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i)); |
| 231 | break; |
| 232 | case IXGBE_DCA_RXCTRL(0): |
| 233 | for (i = 0; i < 64; i++) |
| 234 | regs[i] = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i)); |
| 235 | break; |
| 236 | case IXGBE_RDLEN(0): |
| 237 | for (i = 0; i < 64; i++) |
| 238 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDLEN(i)); |
| 239 | break; |
| 240 | case IXGBE_RDH(0): |
| 241 | for (i = 0; i < 64; i++) |
| 242 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDH(i)); |
| 243 | break; |
| 244 | case IXGBE_RDT(0): |
| 245 | for (i = 0; i < 64; i++) |
| 246 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDT(i)); |
| 247 | break; |
| 248 | case IXGBE_RXDCTL(0): |
| 249 | for (i = 0; i < 64; i++) |
| 250 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i)); |
| 251 | break; |
| 252 | case IXGBE_RDBAL(0): |
| 253 | for (i = 0; i < 64; i++) |
| 254 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAL(i)); |
| 255 | break; |
| 256 | case IXGBE_RDBAH(0): |
| 257 | for (i = 0; i < 64; i++) |
| 258 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAH(i)); |
| 259 | break; |
| 260 | case IXGBE_TDBAL(0): |
| 261 | for (i = 0; i < 64; i++) |
| 262 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAL(i)); |
| 263 | break; |
| 264 | case IXGBE_TDBAH(0): |
| 265 | for (i = 0; i < 64; i++) |
| 266 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAH(i)); |
| 267 | break; |
| 268 | case IXGBE_TDLEN(0): |
| 269 | for (i = 0; i < 64; i++) |
| 270 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDLEN(i)); |
| 271 | break; |
| 272 | case IXGBE_TDH(0): |
| 273 | for (i = 0; i < 64; i++) |
| 274 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDH(i)); |
| 275 | break; |
| 276 | case IXGBE_TDT(0): |
| 277 | for (i = 0; i < 64; i++) |
| 278 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDT(i)); |
| 279 | break; |
| 280 | case IXGBE_TXDCTL(0): |
| 281 | for (i = 0; i < 64; i++) |
| 282 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i)); |
| 283 | break; |
| 284 | default: |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 285 | pr_info("%-15s %08x\n", reginfo->name, |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 286 | IXGBE_READ_REG(hw, reginfo->ofs)); |
| 287 | return; |
| 288 | } |
| 289 | |
| 290 | for (i = 0; i < 8; i++) { |
| 291 | snprintf(rname, 16, "%s[%d-%d]", reginfo->name, i*8, i*8+7); |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 292 | pr_err("%-15s", rname); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 293 | for (j = 0; j < 8; j++) |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 294 | pr_cont(" %08x", regs[i*8+j]); |
| 295 | pr_cont("\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 296 | } |
| 297 | |
| 298 | } |
| 299 | |
| 300 | /* |
| 301 | * ixgbe_dump - Print registers, tx-rings and rx-rings |
| 302 | */ |
| 303 | static void ixgbe_dump(struct ixgbe_adapter *adapter) |
| 304 | { |
| 305 | struct net_device *netdev = adapter->netdev; |
| 306 | struct ixgbe_hw *hw = &adapter->hw; |
| 307 | struct ixgbe_reg_info *reginfo; |
| 308 | int n = 0; |
| 309 | struct ixgbe_ring *tx_ring; |
| 310 | struct ixgbe_tx_buffer *tx_buffer_info; |
| 311 | union ixgbe_adv_tx_desc *tx_desc; |
| 312 | struct my_u0 { u64 a; u64 b; } *u0; |
| 313 | struct ixgbe_ring *rx_ring; |
| 314 | union ixgbe_adv_rx_desc *rx_desc; |
| 315 | struct ixgbe_rx_buffer *rx_buffer_info; |
| 316 | u32 staterr; |
| 317 | int i = 0; |
| 318 | |
| 319 | if (!netif_msg_hw(adapter)) |
| 320 | return; |
| 321 | |
| 322 | /* Print netdevice Info */ |
| 323 | if (netdev) { |
| 324 | dev_info(&adapter->pdev->dev, "Net device Info\n"); |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 325 | pr_info("Device Name state " |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 326 | "trans_start last_rx\n"); |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 327 | pr_info("%-15s %016lX %016lX %016lX\n", |
| 328 | netdev->name, |
| 329 | netdev->state, |
| 330 | netdev->trans_start, |
| 331 | netdev->last_rx); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 332 | } |
| 333 | |
| 334 | /* Print Registers */ |
| 335 | dev_info(&adapter->pdev->dev, "Register Dump\n"); |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 336 | pr_info(" Register Name Value\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 337 | for (reginfo = (struct ixgbe_reg_info *)ixgbe_reg_info_tbl; |
| 338 | reginfo->name; reginfo++) { |
| 339 | ixgbe_regdump(hw, reginfo); |
| 340 | } |
| 341 | |
| 342 | /* Print TX Ring Summary */ |
| 343 | if (!netdev || !netif_running(netdev)) |
| 344 | goto exit; |
| 345 | |
| 346 | dev_info(&adapter->pdev->dev, "TX Rings Summary\n"); |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 347 | pr_info("Queue [NTU] [NTC] [bi(ntc)->dma ] leng ntw timestamp\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 348 | for (n = 0; n < adapter->num_tx_queues; n++) { |
| 349 | tx_ring = adapter->tx_ring[n]; |
| 350 | tx_buffer_info = |
| 351 | &tx_ring->tx_buffer_info[tx_ring->next_to_clean]; |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 352 | pr_info(" %5d %5X %5X %016llX %04X %3X %016llX\n", |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 353 | n, tx_ring->next_to_use, tx_ring->next_to_clean, |
| 354 | (u64)tx_buffer_info->dma, |
| 355 | tx_buffer_info->length, |
| 356 | tx_buffer_info->next_to_watch, |
| 357 | (u64)tx_buffer_info->time_stamp); |
| 358 | } |
| 359 | |
| 360 | /* Print TX Rings */ |
| 361 | if (!netif_msg_tx_done(adapter)) |
| 362 | goto rx_ring_summary; |
| 363 | |
| 364 | dev_info(&adapter->pdev->dev, "TX Rings Dump\n"); |
| 365 | |
| 366 | /* Transmit Descriptor Formats |
| 367 | * |
| 368 | * Advanced Transmit Descriptor |
| 369 | * +--------------------------------------------------------------+ |
| 370 | * 0 | Buffer Address [63:0] | |
| 371 | * +--------------------------------------------------------------+ |
| 372 | * 8 | PAYLEN | PORTS | IDX | STA | DCMD |DTYP | RSV | DTALEN | |
| 373 | * +--------------------------------------------------------------+ |
| 374 | * 63 46 45 40 39 36 35 32 31 24 23 20 19 0 |
| 375 | */ |
| 376 | |
| 377 | for (n = 0; n < adapter->num_tx_queues; n++) { |
| 378 | tx_ring = adapter->tx_ring[n]; |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 379 | pr_info("------------------------------------\n"); |
| 380 | pr_info("TX QUEUE INDEX = %d\n", tx_ring->queue_index); |
| 381 | pr_info("------------------------------------\n"); |
| 382 | pr_info("T [desc] [address 63:0 ] " |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 383 | "[PlPOIdStDDt Ln] [bi->dma ] " |
| 384 | "leng ntw timestamp bi->skb\n"); |
| 385 | |
| 386 | for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) { |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 387 | tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 388 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
| 389 | u0 = (struct my_u0 *)tx_desc; |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 390 | pr_info("T [0x%03X] %016llX %016llX %016llX" |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 391 | " %04X %3X %016llX %p", i, |
| 392 | le64_to_cpu(u0->a), |
| 393 | le64_to_cpu(u0->b), |
| 394 | (u64)tx_buffer_info->dma, |
| 395 | tx_buffer_info->length, |
| 396 | tx_buffer_info->next_to_watch, |
| 397 | (u64)tx_buffer_info->time_stamp, |
| 398 | tx_buffer_info->skb); |
| 399 | if (i == tx_ring->next_to_use && |
| 400 | i == tx_ring->next_to_clean) |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 401 | pr_cont(" NTC/U\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 402 | else if (i == tx_ring->next_to_use) |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 403 | pr_cont(" NTU\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 404 | else if (i == tx_ring->next_to_clean) |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 405 | pr_cont(" NTC\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 406 | else |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 407 | pr_cont("\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 408 | |
| 409 | if (netif_msg_pktdata(adapter) && |
| 410 | tx_buffer_info->dma != 0) |
| 411 | print_hex_dump(KERN_INFO, "", |
| 412 | DUMP_PREFIX_ADDRESS, 16, 1, |
| 413 | phys_to_virt(tx_buffer_info->dma), |
| 414 | tx_buffer_info->length, true); |
| 415 | } |
| 416 | } |
| 417 | |
| 418 | /* Print RX Rings Summary */ |
| 419 | rx_ring_summary: |
| 420 | dev_info(&adapter->pdev->dev, "RX Rings Summary\n"); |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 421 | pr_info("Queue [NTU] [NTC]\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 422 | for (n = 0; n < adapter->num_rx_queues; n++) { |
| 423 | rx_ring = adapter->rx_ring[n]; |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 424 | pr_info("%5d %5X %5X\n", |
| 425 | n, rx_ring->next_to_use, rx_ring->next_to_clean); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 426 | } |
| 427 | |
| 428 | /* Print RX Rings */ |
| 429 | if (!netif_msg_rx_status(adapter)) |
| 430 | goto exit; |
| 431 | |
| 432 | dev_info(&adapter->pdev->dev, "RX Rings Dump\n"); |
| 433 | |
| 434 | /* Advanced Receive Descriptor (Read) Format |
| 435 | * 63 1 0 |
| 436 | * +-----------------------------------------------------+ |
| 437 | * 0 | Packet Buffer Address [63:1] |A0/NSE| |
| 438 | * +----------------------------------------------+------+ |
| 439 | * 8 | Header Buffer Address [63:1] | DD | |
| 440 | * +-----------------------------------------------------+ |
| 441 | * |
| 442 | * |
| 443 | * Advanced Receive Descriptor (Write-Back) Format |
| 444 | * |
| 445 | * 63 48 47 32 31 30 21 20 16 15 4 3 0 |
| 446 | * +------------------------------------------------------+ |
| 447 | * 0 | Packet IP |SPH| HDR_LEN | RSV|Packet| RSS | |
| 448 | * | Checksum Ident | | | | Type | Type | |
| 449 | * +------------------------------------------------------+ |
| 450 | * 8 | VLAN Tag | Length | Extended Error | Extended Status | |
| 451 | * +------------------------------------------------------+ |
| 452 | * 63 48 47 32 31 20 19 0 |
| 453 | */ |
| 454 | for (n = 0; n < adapter->num_rx_queues; n++) { |
| 455 | rx_ring = adapter->rx_ring[n]; |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 456 | pr_info("------------------------------------\n"); |
| 457 | pr_info("RX QUEUE INDEX = %d\n", rx_ring->queue_index); |
| 458 | pr_info("------------------------------------\n"); |
| 459 | pr_info("R [desc] [ PktBuf A0] " |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 460 | "[ HeadBuf DD] [bi->dma ] [bi->skb] " |
| 461 | "<-- Adv Rx Read format\n"); |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 462 | pr_info("RWB[desc] [PcsmIpSHl PtRs] " |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 463 | "[vl er S cks ln] ---------------- [bi->skb] " |
| 464 | "<-- Adv Rx Write-Back format\n"); |
| 465 | |
| 466 | for (i = 0; i < rx_ring->count; i++) { |
| 467 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 468 | rx_desc = IXGBE_RX_DESC_ADV(rx_ring, i); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 469 | u0 = (struct my_u0 *)rx_desc; |
| 470 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); |
| 471 | if (staterr & IXGBE_RXD_STAT_DD) { |
| 472 | /* Descriptor Done */ |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 473 | pr_info("RWB[0x%03X] %016llX " |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 474 | "%016llX ---------------- %p", i, |
| 475 | le64_to_cpu(u0->a), |
| 476 | le64_to_cpu(u0->b), |
| 477 | rx_buffer_info->skb); |
| 478 | } else { |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 479 | pr_info("R [0x%03X] %016llX " |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 480 | "%016llX %016llX %p", i, |
| 481 | le64_to_cpu(u0->a), |
| 482 | le64_to_cpu(u0->b), |
| 483 | (u64)rx_buffer_info->dma, |
| 484 | rx_buffer_info->skb); |
| 485 | |
| 486 | if (netif_msg_pktdata(adapter)) { |
| 487 | print_hex_dump(KERN_INFO, "", |
| 488 | DUMP_PREFIX_ADDRESS, 16, 1, |
| 489 | phys_to_virt(rx_buffer_info->dma), |
| 490 | rx_ring->rx_buf_len, true); |
| 491 | |
| 492 | if (rx_ring->rx_buf_len |
| 493 | < IXGBE_RXBUFFER_2048) |
| 494 | print_hex_dump(KERN_INFO, "", |
| 495 | DUMP_PREFIX_ADDRESS, 16, 1, |
| 496 | phys_to_virt( |
| 497 | rx_buffer_info->page_dma + |
| 498 | rx_buffer_info->page_offset |
| 499 | ), |
| 500 | PAGE_SIZE/2, true); |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | if (i == rx_ring->next_to_use) |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 505 | pr_cont(" NTU\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 506 | else if (i == rx_ring->next_to_clean) |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 507 | pr_cont(" NTC\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 508 | else |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 509 | pr_cont("\n"); |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 510 | |
| 511 | } |
| 512 | } |
| 513 | |
| 514 | exit: |
| 515 | return; |
| 516 | } |
| 517 | |
Ayyappan Veeraiyan | 5eba369 | 2008-02-01 15:59:04 -0800 | [diff] [blame] | 518 | static void ixgbe_release_hw_control(struct ixgbe_adapter *adapter) |
| 519 | { |
| 520 | u32 ctrl_ext; |
| 521 | |
| 522 | /* Let firmware take over control of h/w */ |
| 523 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); |
| 524 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 525 | ctrl_ext & ~IXGBE_CTRL_EXT_DRV_LOAD); |
Ayyappan Veeraiyan | 5eba369 | 2008-02-01 15:59:04 -0800 | [diff] [blame] | 526 | } |
| 527 | |
| 528 | static void ixgbe_get_hw_control(struct ixgbe_adapter *adapter) |
| 529 | { |
| 530 | u32 ctrl_ext; |
| 531 | |
| 532 | /* Let firmware know the driver has taken over */ |
| 533 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); |
| 534 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 535 | ctrl_ext | IXGBE_CTRL_EXT_DRV_LOAD); |
Ayyappan Veeraiyan | 5eba369 | 2008-02-01 15:59:04 -0800 | [diff] [blame] | 536 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 537 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 538 | /* |
| 539 | * ixgbe_set_ivar - set the IVAR registers, mapping interrupt causes to vectors |
| 540 | * @adapter: pointer to adapter struct |
| 541 | * @direction: 0 for Rx, 1 for Tx, -1 for other causes |
| 542 | * @queue: queue to map the corresponding interrupt to |
| 543 | * @msix_vector: the vector to map to the corresponding queue |
| 544 | * |
| 545 | */ |
| 546 | static void ixgbe_set_ivar(struct ixgbe_adapter *adapter, s8 direction, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 547 | u8 queue, u8 msix_vector) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 548 | { |
| 549 | u32 ivar, index; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 550 | struct ixgbe_hw *hw = &adapter->hw; |
| 551 | switch (hw->mac.type) { |
| 552 | case ixgbe_mac_82598EB: |
| 553 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; |
| 554 | if (direction == -1) |
| 555 | direction = 0; |
| 556 | index = (((direction * 64) + queue) >> 2) & 0x1F; |
| 557 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(index)); |
| 558 | ivar &= ~(0xFF << (8 * (queue & 0x3))); |
| 559 | ivar |= (msix_vector << (8 * (queue & 0x3))); |
| 560 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(index), ivar); |
| 561 | break; |
| 562 | case ixgbe_mac_82599EB: |
| 563 | if (direction == -1) { |
| 564 | /* other causes */ |
| 565 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; |
| 566 | index = ((queue & 1) * 8); |
| 567 | ivar = IXGBE_READ_REG(&adapter->hw, IXGBE_IVAR_MISC); |
| 568 | ivar &= ~(0xFF << index); |
| 569 | ivar |= (msix_vector << index); |
| 570 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_IVAR_MISC, ivar); |
| 571 | break; |
| 572 | } else { |
| 573 | /* tx or rx causes */ |
| 574 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; |
| 575 | index = ((16 * (queue & 1)) + (8 * direction)); |
| 576 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(queue >> 1)); |
| 577 | ivar &= ~(0xFF << index); |
| 578 | ivar |= (msix_vector << index); |
| 579 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(queue >> 1), ivar); |
| 580 | break; |
| 581 | } |
| 582 | default: |
| 583 | break; |
| 584 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 585 | } |
| 586 | |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 587 | static inline void ixgbe_irq_rearm_queues(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 588 | u64 qmask) |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 589 | { |
| 590 | u32 mask; |
| 591 | |
| 592 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
| 593 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
| 594 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, mask); |
| 595 | } else { |
| 596 | mask = (qmask & 0xFFFFFFFF); |
| 597 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(0), mask); |
| 598 | mask = (qmask >> 32); |
| 599 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(1), mask); |
| 600 | } |
| 601 | } |
| 602 | |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 603 | void ixgbe_unmap_and_free_tx_resource(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 604 | struct ixgbe_tx_buffer |
| 605 | *tx_buffer_info) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 606 | { |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 607 | if (tx_buffer_info->dma) { |
| 608 | if (tx_buffer_info->mapped_as_page) |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 609 | dma_unmap_page(&adapter->pdev->dev, |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 610 | tx_buffer_info->dma, |
| 611 | tx_buffer_info->length, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 612 | DMA_TO_DEVICE); |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 613 | else |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 614 | dma_unmap_single(&adapter->pdev->dev, |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 615 | tx_buffer_info->dma, |
| 616 | tx_buffer_info->length, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 617 | DMA_TO_DEVICE); |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 618 | tx_buffer_info->dma = 0; |
| 619 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 620 | if (tx_buffer_info->skb) { |
| 621 | dev_kfree_skb_any(tx_buffer_info->skb); |
| 622 | tx_buffer_info->skb = NULL; |
| 623 | } |
Alexander Duyck | 44df32c | 2009-03-31 21:34:23 +0000 | [diff] [blame] | 624 | tx_buffer_info->time_stamp = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 625 | /* tx_buffer_info must be completely set up in the transmit path */ |
| 626 | } |
| 627 | |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 628 | /** |
John Fastabend | 7483d9d | 2010-05-18 16:00:10 +0000 | [diff] [blame] | 629 | * ixgbe_tx_xon_state - check the tx ring xon state |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 630 | * @adapter: the ixgbe adapter |
| 631 | * @tx_ring: the corresponding tx_ring |
| 632 | * |
| 633 | * If not in DCB mode, checks TFCS.TXOFF, otherwise, find out the |
| 634 | * corresponding TC of this tx_ring when checking TFCS. |
| 635 | * |
John Fastabend | 7483d9d | 2010-05-18 16:00:10 +0000 | [diff] [blame] | 636 | * Returns : true if in xon state (currently not paused) |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 637 | */ |
John Fastabend | 7483d9d | 2010-05-18 16:00:10 +0000 | [diff] [blame] | 638 | static inline bool ixgbe_tx_xon_state(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 639 | struct ixgbe_ring *tx_ring) |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 640 | { |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 641 | u32 txoff = IXGBE_TFCS_TXOFF; |
| 642 | |
| 643 | #ifdef CONFIG_IXGBE_DCB |
John Fastabend | ca73948 | 2010-06-03 17:03:45 +0000 | [diff] [blame] | 644 | if (adapter->dcb_cfg.pfc_mode_enable) { |
Jaswinder Singh Rajput | 30b76832 | 2009-11-20 04:02:27 +0000 | [diff] [blame] | 645 | int tc; |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 646 | int reg_idx = tx_ring->reg_idx; |
| 647 | int dcb_i = adapter->ring_feature[RING_F_DCB].indices; |
| 648 | |
PJ Waskiewicz | 6837e89 | 2010-01-06 17:50:29 +0000 | [diff] [blame] | 649 | switch (adapter->hw.mac.type) { |
| 650 | case ixgbe_mac_82598EB: |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 651 | tc = reg_idx >> 2; |
| 652 | txoff = IXGBE_TFCS_TXOFF0; |
PJ Waskiewicz | 6837e89 | 2010-01-06 17:50:29 +0000 | [diff] [blame] | 653 | break; |
| 654 | case ixgbe_mac_82599EB: |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 655 | tc = 0; |
| 656 | txoff = IXGBE_TFCS_TXOFF; |
| 657 | if (dcb_i == 8) { |
| 658 | /* TC0, TC1 */ |
| 659 | tc = reg_idx >> 5; |
| 660 | if (tc == 2) /* TC2, TC3 */ |
| 661 | tc += (reg_idx - 64) >> 4; |
| 662 | else if (tc == 3) /* TC4, TC5, TC6, TC7 */ |
| 663 | tc += 1 + ((reg_idx - 96) >> 3); |
| 664 | } else if (dcb_i == 4) { |
| 665 | /* TC0, TC1 */ |
| 666 | tc = reg_idx >> 6; |
| 667 | if (tc == 1) { |
| 668 | tc += (reg_idx - 64) >> 5; |
| 669 | if (tc == 2) /* TC2, TC3 */ |
| 670 | tc += (reg_idx - 96) >> 4; |
| 671 | } |
| 672 | } |
PJ Waskiewicz | 6837e89 | 2010-01-06 17:50:29 +0000 | [diff] [blame] | 673 | break; |
| 674 | default: |
| 675 | tc = 0; |
Yi Zou | 26f23d8 | 2009-11-06 12:56:00 +0000 | [diff] [blame] | 676 | } |
| 677 | txoff <<= tc; |
| 678 | } |
| 679 | #endif |
| 680 | return IXGBE_READ_REG(&adapter->hw, IXGBE_TFCS) & txoff; |
| 681 | } |
| 682 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 683 | static inline bool ixgbe_check_tx_hang(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 684 | struct ixgbe_ring *tx_ring, |
| 685 | unsigned int eop) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 686 | { |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 687 | struct ixgbe_hw *hw = &adapter->hw; |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 688 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 689 | /* Detect a transmit hang in hardware, this serializes the |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 690 | * check with the clearing of time_stamp and movement of eop */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 691 | adapter->detect_tx_hung = false; |
Alexander Duyck | 44df32c | 2009-03-31 21:34:23 +0000 | [diff] [blame] | 692 | if (tx_ring->tx_buffer_info[eop].time_stamp && |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 693 | time_after(jiffies, tx_ring->tx_buffer_info[eop].time_stamp + HZ) && |
John Fastabend | 7483d9d | 2010-05-18 16:00:10 +0000 | [diff] [blame] | 694 | ixgbe_tx_xon_state(adapter, tx_ring)) { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 695 | /* detected Tx unit hang */ |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 696 | union ixgbe_adv_tx_desc *tx_desc; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 697 | tx_desc = IXGBE_TX_DESC_ADV(tx_ring, eop); |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 698 | e_err(drv, "Detected Tx Unit Hang\n" |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 699 | " Tx Queue <%d>\n" |
| 700 | " TDH, TDT <%x>, <%x>\n" |
| 701 | " next_to_use <%x>\n" |
| 702 | " next_to_clean <%x>\n" |
| 703 | "tx_buffer_info[next_to_clean]\n" |
| 704 | " time_stamp <%lx>\n" |
| 705 | " jiffies <%lx>\n", |
| 706 | tx_ring->queue_index, |
| 707 | IXGBE_READ_REG(hw, tx_ring->head), |
| 708 | IXGBE_READ_REG(hw, tx_ring->tail), |
| 709 | tx_ring->next_to_use, eop, |
| 710 | tx_ring->tx_buffer_info[eop].time_stamp, jiffies); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 711 | return true; |
| 712 | } |
| 713 | |
| 714 | return false; |
| 715 | } |
| 716 | |
Peter P Waskiewicz | b461724 | 2008-09-11 20:04:46 -0700 | [diff] [blame] | 717 | #define IXGBE_MAX_TXD_PWR 14 |
| 718 | #define IXGBE_MAX_DATA_PER_TXD (1 << IXGBE_MAX_TXD_PWR) |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 719 | |
| 720 | /* Tx Descriptors needed, worst case */ |
| 721 | #define TXD_USE_COUNT(S) (((S) >> IXGBE_MAX_TXD_PWR) + \ |
| 722 | (((S) & (IXGBE_MAX_DATA_PER_TXD - 1)) ? 1 : 0)) |
| 723 | #define DESC_NEEDED (TXD_USE_COUNT(IXGBE_MAX_DATA_PER_TXD) /* skb->data */ + \ |
Peter P Waskiewicz | b461724 | 2008-09-11 20:04:46 -0700 | [diff] [blame] | 724 | MAX_SKB_FRAGS * TXD_USE_COUNT(PAGE_SIZE) + 1) /* for context */ |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 725 | |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 726 | static void ixgbe_tx_timeout(struct net_device *netdev); |
| 727 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 728 | /** |
| 729 | * ixgbe_clean_tx_irq - Reclaim resources after transmit completes |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 730 | * @q_vector: structure containing interrupt and ring information |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 731 | * @tx_ring: tx ring to clean |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 732 | **/ |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 733 | static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 734 | struct ixgbe_ring *tx_ring) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 735 | { |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 736 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 737 | struct net_device *netdev = adapter->netdev; |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 738 | union ixgbe_adv_tx_desc *tx_desc, *eop_desc; |
| 739 | struct ixgbe_tx_buffer *tx_buffer_info; |
| 740 | unsigned int i, eop, count = 0; |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 741 | unsigned int total_bytes = 0, total_packets = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 742 | |
| 743 | i = tx_ring->next_to_clean; |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 744 | eop = tx_ring->tx_buffer_info[i].next_to_watch; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 745 | eop_desc = IXGBE_TX_DESC_ADV(tx_ring, eop); |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 746 | |
| 747 | while ((eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD)) && |
Jesse Brandeburg | 9a1a69ad | 2009-03-13 22:14:10 +0000 | [diff] [blame] | 748 | (count < tx_ring->work_limit)) { |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 749 | bool cleaned = false; |
Jeff Kirsher | 2d0bb1c | 2010-08-08 16:02:31 +0000 | [diff] [blame] | 750 | rmb(); /* read buffer_info after eop_desc */ |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 751 | for ( ; !cleaned; count++) { |
| 752 | struct sk_buff *skb; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 753 | tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 754 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 755 | cleaned = (i == eop); |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 756 | skb = tx_buffer_info->skb; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 757 | |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 758 | if (cleaned && skb) { |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 759 | unsigned int segs, bytecount; |
Yi Zou | 3d8fd38 | 2009-06-08 14:38:44 +0000 | [diff] [blame] | 760 | unsigned int hlen = skb_headlen(skb); |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 761 | |
| 762 | /* gso_segs is currently only valid for tcp */ |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 763 | segs = skb_shinfo(skb)->gso_segs ?: 1; |
Yi Zou | 3d8fd38 | 2009-06-08 14:38:44 +0000 | [diff] [blame] | 764 | #ifdef IXGBE_FCOE |
| 765 | /* adjust for FCoE Sequence Offload */ |
| 766 | if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) |
| 767 | && (skb->protocol == htons(ETH_P_FCOE)) && |
| 768 | skb_is_gso(skb)) { |
| 769 | hlen = skb_transport_offset(skb) + |
| 770 | sizeof(struct fc_frame_header) + |
| 771 | sizeof(struct fcoe_crc_eof); |
| 772 | segs = DIV_ROUND_UP(skb->len - hlen, |
| 773 | skb_shinfo(skb)->gso_size); |
| 774 | } |
| 775 | #endif /* IXGBE_FCOE */ |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 776 | /* multiply data chunks by size of headers */ |
Yi Zou | 3d8fd38 | 2009-06-08 14:38:44 +0000 | [diff] [blame] | 777 | bytecount = ((segs - 1) * hlen) + skb->len; |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 778 | total_packets += segs; |
| 779 | total_bytes += bytecount; |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 780 | } |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 781 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 782 | ixgbe_unmap_and_free_tx_resource(adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 783 | tx_buffer_info); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 784 | |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 785 | tx_desc->wb.status = 0; |
| 786 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 787 | i++; |
| 788 | if (i == tx_ring->count) |
| 789 | i = 0; |
| 790 | } |
| 791 | |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 792 | eop = tx_ring->tx_buffer_info[i].next_to_watch; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 793 | eop_desc = IXGBE_TX_DESC_ADV(tx_ring, eop); |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 794 | } |
| 795 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 796 | tx_ring->next_to_clean = i; |
| 797 | |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 798 | #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2) |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 799 | if (unlikely(count && netif_carrier_ok(netdev) && |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 800 | (IXGBE_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD))) { |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 801 | /* Make sure that anybody stopping the queue after this |
| 802 | * sees the new next_to_clean. |
| 803 | */ |
| 804 | smp_mb(); |
Ayyappan Veeraiyan | 30eba97 | 2008-03-03 15:03:52 -0800 | [diff] [blame] | 805 | if (__netif_subqueue_stopped(netdev, tx_ring->queue_index) && |
| 806 | !test_bit(__IXGBE_DOWN, &adapter->state)) { |
| 807 | netif_wake_subqueue(netdev, tx_ring->queue_index); |
Jesse Brandeburg | 7ca3bc5 | 2009-12-03 11:33:29 +0000 | [diff] [blame] | 808 | ++tx_ring->restart_queue; |
Ayyappan Veeraiyan | 30eba97 | 2008-03-03 15:03:52 -0800 | [diff] [blame] | 809 | } |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 810 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 811 | |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 812 | if (adapter->detect_tx_hung) { |
| 813 | if (ixgbe_check_tx_hang(adapter, tx_ring, i)) { |
| 814 | /* schedule immediate reset if we believe we hung */ |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 815 | e_info(probe, "tx hang %d detected, resetting " |
| 816 | "adapter\n", adapter->tx_timeout_count + 1); |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 817 | ixgbe_tx_timeout(adapter->netdev); |
| 818 | } |
| 819 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 820 | |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 821 | /* re-arm the interrupt */ |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 822 | if (count >= tx_ring->work_limit) |
| 823 | ixgbe_irq_rearm_queues(adapter, ((u64)1 << q_vector->v_idx)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 824 | |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 825 | tx_ring->total_bytes += total_bytes; |
| 826 | tx_ring->total_packets += total_packets; |
Eric Dumazet | de1036b | 2010-10-20 23:00:04 +0000 | [diff] [blame^] | 827 | u64_stats_update_begin(&tx_ring->syncp); |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 828 | tx_ring->stats.packets += total_packets; |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 829 | tx_ring->stats.bytes += total_bytes; |
Eric Dumazet | de1036b | 2010-10-20 23:00:04 +0000 | [diff] [blame^] | 830 | u64_stats_update_end(&tx_ring->syncp); |
Eric Dumazet | 807540b | 2010-09-23 05:40:09 +0000 | [diff] [blame] | 831 | return count < tx_ring->work_limit; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 832 | } |
| 833 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 834 | #ifdef CONFIG_IXGBE_DCA |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 835 | static void ixgbe_update_rx_dca(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 836 | struct ixgbe_ring *rx_ring) |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 837 | { |
| 838 | u32 rxctrl; |
| 839 | int cpu = get_cpu(); |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 840 | int q = rx_ring->reg_idx; |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 841 | |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 842 | if (rx_ring->cpu != cpu) { |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 843 | rxctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_DCA_RXCTRL(q)); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 844 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
| 845 | rxctrl &= ~IXGBE_DCA_RXCTRL_CPUID_MASK; |
| 846 | rxctrl |= dca3_get_tag(&adapter->pdev->dev, cpu); |
| 847 | } else if (adapter->hw.mac.type == ixgbe_mac_82599EB) { |
| 848 | rxctrl &= ~IXGBE_DCA_RXCTRL_CPUID_MASK_82599; |
| 849 | rxctrl |= (dca3_get_tag(&adapter->pdev->dev, cpu) << |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 850 | IXGBE_DCA_RXCTRL_CPUID_SHIFT_82599); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 851 | } |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 852 | rxctrl |= IXGBE_DCA_RXCTRL_DESC_DCA_EN; |
| 853 | rxctrl |= IXGBE_DCA_RXCTRL_HEAD_DCA_EN; |
Don Skidmore | 15005a3 | 2009-01-19 16:54:13 -0800 | [diff] [blame] | 854 | rxctrl &= ~(IXGBE_DCA_RXCTRL_DESC_RRO_EN); |
| 855 | rxctrl &= ~(IXGBE_DCA_RXCTRL_DESC_WRO_EN | |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 856 | IXGBE_DCA_RXCTRL_DESC_HSRO_EN); |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 857 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_RXCTRL(q), rxctrl); |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 858 | rx_ring->cpu = cpu; |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 859 | } |
| 860 | put_cpu(); |
| 861 | } |
| 862 | |
| 863 | static void ixgbe_update_tx_dca(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 864 | struct ixgbe_ring *tx_ring) |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 865 | { |
| 866 | u32 txctrl; |
| 867 | int cpu = get_cpu(); |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 868 | int q = tx_ring->reg_idx; |
Don Skidmore | ee5f784 | 2009-11-06 12:56:20 +0000 | [diff] [blame] | 869 | struct ixgbe_hw *hw = &adapter->hw; |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 870 | |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 871 | if (tx_ring->cpu != cpu) { |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 872 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
Don Skidmore | ee5f784 | 2009-11-06 12:56:20 +0000 | [diff] [blame] | 873 | txctrl = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(q)); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 874 | txctrl &= ~IXGBE_DCA_TXCTRL_CPUID_MASK; |
| 875 | txctrl |= dca3_get_tag(&adapter->pdev->dev, cpu); |
Don Skidmore | ee5f784 | 2009-11-06 12:56:20 +0000 | [diff] [blame] | 876 | txctrl |= IXGBE_DCA_TXCTRL_DESC_DCA_EN; |
| 877 | IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(q), txctrl); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 878 | } else if (adapter->hw.mac.type == ixgbe_mac_82599EB) { |
Don Skidmore | ee5f784 | 2009-11-06 12:56:20 +0000 | [diff] [blame] | 879 | txctrl = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(q)); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 880 | txctrl &= ~IXGBE_DCA_TXCTRL_CPUID_MASK_82599; |
| 881 | txctrl |= (dca3_get_tag(&adapter->pdev->dev, cpu) << |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 882 | IXGBE_DCA_TXCTRL_CPUID_SHIFT_82599); |
Don Skidmore | ee5f784 | 2009-11-06 12:56:20 +0000 | [diff] [blame] | 883 | txctrl |= IXGBE_DCA_TXCTRL_DESC_DCA_EN; |
| 884 | IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(q), txctrl); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 885 | } |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 886 | tx_ring->cpu = cpu; |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 887 | } |
| 888 | put_cpu(); |
| 889 | } |
| 890 | |
| 891 | static void ixgbe_setup_dca(struct ixgbe_adapter *adapter) |
| 892 | { |
| 893 | int i; |
| 894 | |
| 895 | if (!(adapter->flags & IXGBE_FLAG_DCA_ENABLED)) |
| 896 | return; |
| 897 | |
Alexander Duyck | e35ec12 | 2009-05-21 13:07:12 +0000 | [diff] [blame] | 898 | /* always use CB2 mode, difference is masked in the CB driver */ |
| 899 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 2); |
| 900 | |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 901 | for (i = 0; i < adapter->num_tx_queues; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 902 | adapter->tx_ring[i]->cpu = -1; |
| 903 | ixgbe_update_tx_dca(adapter, adapter->tx_ring[i]); |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 904 | } |
| 905 | for (i = 0; i < adapter->num_rx_queues; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 906 | adapter->rx_ring[i]->cpu = -1; |
| 907 | ixgbe_update_rx_dca(adapter, adapter->rx_ring[i]); |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 908 | } |
| 909 | } |
| 910 | |
| 911 | static int __ixgbe_notify_dca(struct device *dev, void *data) |
| 912 | { |
| 913 | struct net_device *netdev = dev_get_drvdata(dev); |
| 914 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 915 | unsigned long event = *(unsigned long *)data; |
| 916 | |
| 917 | switch (event) { |
| 918 | case DCA_PROVIDER_ADD: |
Jesse Brandeburg | 96b0e0f | 2008-08-26 04:27:21 -0700 | [diff] [blame] | 919 | /* if we're already enabled, don't do it again */ |
| 920 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
| 921 | break; |
Denis V. Lunev | 652f093 | 2008-03-27 14:39:17 +0300 | [diff] [blame] | 922 | if (dca_add_requester(dev) == 0) { |
Jesse Brandeburg | 96b0e0f | 2008-08-26 04:27:21 -0700 | [diff] [blame] | 923 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 924 | ixgbe_setup_dca(adapter); |
| 925 | break; |
| 926 | } |
| 927 | /* Fall Through since DCA is disabled. */ |
| 928 | case DCA_PROVIDER_REMOVE: |
| 929 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { |
| 930 | dca_remove_requester(dev); |
| 931 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; |
| 932 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 1); |
| 933 | } |
| 934 | break; |
| 935 | } |
| 936 | |
Denis V. Lunev | 652f093 | 2008-03-27 14:39:17 +0300 | [diff] [blame] | 937 | return 0; |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 938 | } |
| 939 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 940 | #endif /* CONFIG_IXGBE_DCA */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 941 | /** |
| 942 | * ixgbe_receive_skb - Send a completed packet up the stack |
| 943 | * @adapter: board private structure |
| 944 | * @skb: packet to send up |
Mallikarjuna R Chilakala | 177db6f | 2008-06-18 15:32:19 -0700 | [diff] [blame] | 945 | * @status: hardware indication of status of receive |
| 946 | * @rx_ring: rx descriptor ring (for a specific queue) to setup |
| 947 | * @rx_desc: rx descriptor |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 948 | **/ |
Herbert Xu | 78b6f4c | 2009-01-18 21:49:45 -0800 | [diff] [blame] | 949 | static void ixgbe_receive_skb(struct ixgbe_q_vector *q_vector, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 950 | struct sk_buff *skb, u8 status, |
| 951 | struct ixgbe_ring *ring, |
| 952 | union ixgbe_adv_rx_desc *rx_desc) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 953 | { |
Herbert Xu | 78b6f4c | 2009-01-18 21:49:45 -0800 | [diff] [blame] | 954 | struct ixgbe_adapter *adapter = q_vector->adapter; |
| 955 | struct napi_struct *napi = &q_vector->napi; |
Mallikarjuna R Chilakala | 177db6f | 2008-06-18 15:32:19 -0700 | [diff] [blame] | 956 | bool is_vlan = (status & IXGBE_RXD_STAT_VP); |
| 957 | u16 tag = le16_to_cpu(rx_desc->wb.upper.vlan); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 958 | |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 959 | if (is_vlan && (tag & VLAN_VID_MASK)) |
| 960 | __vlan_hwaccel_put_tag(skb, tag); |
| 961 | |
| 962 | if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL)) |
| 963 | napi_gro_receive(napi, skb); |
| 964 | else |
| 965 | netif_rx(skb); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 966 | } |
| 967 | |
Ayyappan Veeraiyan | e59bd25 | 2008-02-01 15:59:09 -0800 | [diff] [blame] | 968 | /** |
| 969 | * ixgbe_rx_checksum - indicate in skb if hw indicated a good cksum |
| 970 | * @adapter: address of board private structure |
| 971 | * @status_err: hardware indication of status of receive |
| 972 | * @skb: skb currently being received and modified |
| 973 | **/ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 974 | static inline void ixgbe_rx_checksum(struct ixgbe_adapter *adapter, |
Don Skidmore | 8bae1b2 | 2009-07-23 18:00:39 +0000 | [diff] [blame] | 975 | union ixgbe_adv_rx_desc *rx_desc, |
| 976 | struct sk_buff *skb) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 977 | { |
Don Skidmore | 8bae1b2 | 2009-07-23 18:00:39 +0000 | [diff] [blame] | 978 | u32 status_err = le32_to_cpu(rx_desc->wb.upper.status_error); |
| 979 | |
Eric Dumazet | bc8acf2 | 2010-09-02 13:07:41 -0700 | [diff] [blame] | 980 | skb_checksum_none_assert(skb); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 981 | |
Jesse Brandeburg | 712744b | 2008-08-26 04:26:56 -0700 | [diff] [blame] | 982 | /* Rx csum disabled */ |
| 983 | if (!(adapter->flags & IXGBE_FLAG_RX_CSUM_ENABLED)) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 984 | return; |
Ayyappan Veeraiyan | e59bd25 | 2008-02-01 15:59:09 -0800 | [diff] [blame] | 985 | |
| 986 | /* if IP and error */ |
| 987 | if ((status_err & IXGBE_RXD_STAT_IPCS) && |
| 988 | (status_err & IXGBE_RXDADV_ERR_IPE)) { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 989 | adapter->hw_csum_rx_error++; |
| 990 | return; |
| 991 | } |
Ayyappan Veeraiyan | e59bd25 | 2008-02-01 15:59:09 -0800 | [diff] [blame] | 992 | |
| 993 | if (!(status_err & IXGBE_RXD_STAT_L4CS)) |
| 994 | return; |
| 995 | |
| 996 | if (status_err & IXGBE_RXDADV_ERR_TCPE) { |
Don Skidmore | 8bae1b2 | 2009-07-23 18:00:39 +0000 | [diff] [blame] | 997 | u16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; |
| 998 | |
| 999 | /* |
| 1000 | * 82599 errata, UDP frames with a 0 checksum can be marked as |
| 1001 | * checksum errors. |
| 1002 | */ |
| 1003 | if ((pkt_info & IXGBE_RXDADV_PKTTYPE_UDP) && |
| 1004 | (adapter->hw.mac.type == ixgbe_mac_82599EB)) |
| 1005 | return; |
| 1006 | |
Ayyappan Veeraiyan | e59bd25 | 2008-02-01 15:59:09 -0800 | [diff] [blame] | 1007 | adapter->hw_csum_rx_error++; |
| 1008 | return; |
| 1009 | } |
| 1010 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1011 | /* It must be a TCP or UDP packet with a valid checksum */ |
Ayyappan Veeraiyan | e59bd25 | 2008-02-01 15:59:09 -0800 | [diff] [blame] | 1012 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1013 | } |
| 1014 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1015 | static inline void ixgbe_release_rx_desc(struct ixgbe_hw *hw, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1016 | struct ixgbe_ring *rx_ring, u32 val) |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1017 | { |
| 1018 | /* |
| 1019 | * Force memory writes to complete before letting h/w |
| 1020 | * know there are new descriptors to fetch. (Only |
| 1021 | * applicable for weak-ordered memory model archs, |
| 1022 | * such as IA-64). |
| 1023 | */ |
| 1024 | wmb(); |
| 1025 | IXGBE_WRITE_REG(hw, IXGBE_RDT(rx_ring->reg_idx), val); |
| 1026 | } |
| 1027 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1028 | /** |
| 1029 | * ixgbe_alloc_rx_buffers - Replace used receive buffers; packet split |
| 1030 | * @adapter: address of board private structure |
| 1031 | **/ |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 1032 | void ixgbe_alloc_rx_buffers(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1033 | struct ixgbe_ring *rx_ring, |
| 1034 | int cleaned_count) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1035 | { |
Alexander Duyck | d716a7d | 2010-08-19 13:33:41 +0000 | [diff] [blame] | 1036 | struct net_device *netdev = adapter->netdev; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1037 | struct pci_dev *pdev = adapter->pdev; |
| 1038 | union ixgbe_adv_rx_desc *rx_desc; |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1039 | struct ixgbe_rx_buffer *bi; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1040 | unsigned int i; |
Alexander Duyck | d716a7d | 2010-08-19 13:33:41 +0000 | [diff] [blame] | 1041 | unsigned int bufsz = rx_ring->rx_buf_len; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1042 | |
| 1043 | i = rx_ring->next_to_use; |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1044 | bi = &rx_ring->rx_buffer_info[i]; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1045 | |
| 1046 | while (cleaned_count--) { |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 1047 | rx_desc = IXGBE_RX_DESC_ADV(rx_ring, i); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1048 | |
Jesse Brandeburg | 762f4c5 | 2008-09-11 19:58:43 -0700 | [diff] [blame] | 1049 | if (!bi->page_dma && |
Yi Zou | 6e455b89 | 2009-08-06 13:05:44 +0000 | [diff] [blame] | 1050 | (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED)) { |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1051 | if (!bi->page) { |
Alexander Duyck | d716a7d | 2010-08-19 13:33:41 +0000 | [diff] [blame] | 1052 | bi->page = netdev_alloc_page(netdev); |
Jesse Brandeburg | 762f4c5 | 2008-09-11 19:58:43 -0700 | [diff] [blame] | 1053 | if (!bi->page) { |
| 1054 | adapter->alloc_rx_page_failed++; |
| 1055 | goto no_buffers; |
| 1056 | } |
| 1057 | bi->page_offset = 0; |
| 1058 | } else { |
| 1059 | /* use a half page if we're re-using */ |
| 1060 | bi->page_offset ^= (PAGE_SIZE / 2); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1061 | } |
Jesse Brandeburg | 762f4c5 | 2008-09-11 19:58:43 -0700 | [diff] [blame] | 1062 | |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 1063 | bi->page_dma = dma_map_page(&pdev->dev, bi->page, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1064 | bi->page_offset, |
| 1065 | (PAGE_SIZE / 2), |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 1066 | DMA_FROM_DEVICE); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1067 | } |
| 1068 | |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1069 | if (!bi->skb) { |
Alexander Duyck | d716a7d | 2010-08-19 13:33:41 +0000 | [diff] [blame] | 1070 | struct sk_buff *skb = netdev_alloc_skb_ip_align(netdev, |
| 1071 | bufsz); |
| 1072 | bi->skb = skb; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1073 | |
| 1074 | if (!skb) { |
| 1075 | adapter->alloc_rx_buff_failed++; |
| 1076 | goto no_buffers; |
| 1077 | } |
Alexander Duyck | d716a7d | 2010-08-19 13:33:41 +0000 | [diff] [blame] | 1078 | /* initialize queue mapping */ |
| 1079 | skb_record_rx_queue(skb, rx_ring->queue_index); |
| 1080 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1081 | |
Alexander Duyck | d716a7d | 2010-08-19 13:33:41 +0000 | [diff] [blame] | 1082 | if (!bi->dma) { |
| 1083 | bi->dma = dma_map_single(&pdev->dev, |
| 1084 | bi->skb->data, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1085 | rx_ring->rx_buf_len, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 1086 | DMA_FROM_DEVICE); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1087 | } |
| 1088 | /* Refresh the desc even if buffer_addrs didn't change because |
| 1089 | * each write-back erases this info. */ |
Yi Zou | 6e455b89 | 2009-08-06 13:05:44 +0000 | [diff] [blame] | 1090 | if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED) { |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1091 | rx_desc->read.pkt_addr = cpu_to_le64(bi->page_dma); |
| 1092 | rx_desc->read.hdr_addr = cpu_to_le64(bi->dma); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1093 | } else { |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1094 | rx_desc->read.pkt_addr = cpu_to_le64(bi->dma); |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 1095 | rx_desc->read.hdr_addr = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1096 | } |
| 1097 | |
| 1098 | i++; |
| 1099 | if (i == rx_ring->count) |
| 1100 | i = 0; |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1101 | bi = &rx_ring->rx_buffer_info[i]; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1102 | } |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 1103 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1104 | no_buffers: |
| 1105 | if (rx_ring->next_to_use != i) { |
| 1106 | rx_ring->next_to_use = i; |
| 1107 | if (i-- == 0) |
| 1108 | i = (rx_ring->count - 1); |
| 1109 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1110 | ixgbe_release_rx_desc(&adapter->hw, rx_ring, i); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1111 | } |
| 1112 | } |
| 1113 | |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 1114 | static inline u16 ixgbe_get_hdr_info(union ixgbe_adv_rx_desc *rx_desc) |
| 1115 | { |
| 1116 | return rx_desc->wb.lower.lo_dword.hs_rss.hdr_info; |
| 1117 | } |
| 1118 | |
| 1119 | static inline u16 ixgbe_get_pkt_info(union ixgbe_adv_rx_desc *rx_desc) |
| 1120 | { |
| 1121 | return rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; |
| 1122 | } |
| 1123 | |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1124 | static inline u32 ixgbe_get_rsc_count(union ixgbe_adv_rx_desc *rx_desc) |
| 1125 | { |
| 1126 | return (le32_to_cpu(rx_desc->wb.lower.lo_dword.data) & |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1127 | IXGBE_RXDADV_RSCCNT_MASK) >> |
| 1128 | IXGBE_RXDADV_RSCCNT_SHIFT; |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1129 | } |
| 1130 | |
| 1131 | /** |
| 1132 | * ixgbe_transform_rsc_queue - change rsc queue into a full packet |
| 1133 | * @skb: pointer to the last skb in the rsc queue |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 1134 | * @count: pointer to number of packets coalesced in this context |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1135 | * |
| 1136 | * This function changes a queue full of hw rsc buffers into a completed |
| 1137 | * packet. It uses the ->prev pointers to find the first packet and then |
| 1138 | * turns it into the frag list owner. |
| 1139 | **/ |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 1140 | static inline struct sk_buff *ixgbe_transform_rsc_queue(struct sk_buff *skb, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1141 | u64 *count) |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1142 | { |
| 1143 | unsigned int frag_list_size = 0; |
| 1144 | |
| 1145 | while (skb->prev) { |
| 1146 | struct sk_buff *prev = skb->prev; |
| 1147 | frag_list_size += skb->len; |
| 1148 | skb->prev = NULL; |
| 1149 | skb = prev; |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 1150 | *count += 1; |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1151 | } |
| 1152 | |
| 1153 | skb_shinfo(skb)->frag_list = skb->next; |
| 1154 | skb->next = NULL; |
| 1155 | skb->len += frag_list_size; |
| 1156 | skb->data_len += frag_list_size; |
| 1157 | skb->truesize += frag_list_size; |
| 1158 | return skb; |
| 1159 | } |
| 1160 | |
Mallikarjuna R Chilakala | 43634e8 | 2010-02-25 23:14:37 +0000 | [diff] [blame] | 1161 | struct ixgbe_rsc_cb { |
| 1162 | dma_addr_t dma; |
Mallikarjuna R Chilakala | e8171aa | 2010-05-13 17:33:21 +0000 | [diff] [blame] | 1163 | bool delay_unmap; |
Mallikarjuna R Chilakala | 43634e8 | 2010-02-25 23:14:37 +0000 | [diff] [blame] | 1164 | }; |
| 1165 | |
| 1166 | #define IXGBE_RSC_CB(skb) ((struct ixgbe_rsc_cb *)(skb)->cb) |
| 1167 | |
Herbert Xu | 78b6f4c | 2009-01-18 21:49:45 -0800 | [diff] [blame] | 1168 | static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1169 | struct ixgbe_ring *rx_ring, |
| 1170 | int *work_done, int work_to_do) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1171 | { |
Herbert Xu | 78b6f4c | 2009-01-18 21:49:45 -0800 | [diff] [blame] | 1172 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1173 | struct pci_dev *pdev = adapter->pdev; |
| 1174 | union ixgbe_adv_rx_desc *rx_desc, *next_rxd; |
| 1175 | struct ixgbe_rx_buffer *rx_buffer_info, *next_buffer; |
| 1176 | struct sk_buff *skb; |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1177 | unsigned int i, rsc_count = 0; |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 1178 | u32 len, staterr; |
Mallikarjuna R Chilakala | 177db6f | 2008-06-18 15:32:19 -0700 | [diff] [blame] | 1179 | u16 hdr_info; |
| 1180 | bool cleaned = false; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1181 | int cleaned_count = 0; |
Ayyappan Veeraiyan | d2f4fbe | 2008-02-01 15:59:19 -0800 | [diff] [blame] | 1182 | unsigned int total_rx_bytes = 0, total_rx_packets = 0; |
Yi Zou | 3d8fd38 | 2009-06-08 14:38:44 +0000 | [diff] [blame] | 1183 | #ifdef IXGBE_FCOE |
| 1184 | int ddp_bytes = 0; |
| 1185 | #endif /* IXGBE_FCOE */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1186 | |
| 1187 | i = rx_ring->next_to_clean; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 1188 | rx_desc = IXGBE_RX_DESC_ADV(rx_ring, i); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1189 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); |
| 1190 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1191 | |
| 1192 | while (staterr & IXGBE_RXD_STAT_DD) { |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 1193 | u32 upper_len = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1194 | if (*work_done >= work_to_do) |
| 1195 | break; |
| 1196 | (*work_done)++; |
| 1197 | |
Milton Miller | 3c945e5 | 2010-02-19 17:44:42 +0000 | [diff] [blame] | 1198 | rmb(); /* read descriptor and rx_buffer_info after status DD */ |
Yi Zou | 6e455b89 | 2009-08-06 13:05:44 +0000 | [diff] [blame] | 1199 | if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED) { |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 1200 | hdr_info = le16_to_cpu(ixgbe_get_hdr_info(rx_desc)); |
| 1201 | len = (hdr_info & IXGBE_RXDADV_HDRBUFLEN_MASK) >> |
Jesse Brandeburg | 762f4c5 | 2008-09-11 19:58:43 -0700 | [diff] [blame] | 1202 | IXGBE_RXDADV_HDRBUFLEN_SHIFT; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1203 | upper_len = le16_to_cpu(rx_desc->wb.upper.length); |
Shannon Nelson | 0b746e0 | 2010-05-18 16:00:03 +0000 | [diff] [blame] | 1204 | if ((len > IXGBE_RX_HDR_SIZE) || |
| 1205 | (upper_len && !(hdr_info & IXGBE_RXDADV_SPH))) |
| 1206 | len = IXGBE_RX_HDR_SIZE; |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 1207 | } else { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1208 | len = le16_to_cpu(rx_desc->wb.upper.length); |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 1209 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1210 | |
| 1211 | cleaned = true; |
| 1212 | skb = rx_buffer_info->skb; |
Jesse Brandeburg | 7ca3bc5 | 2009-12-03 11:33:29 +0000 | [diff] [blame] | 1213 | prefetch(skb->data); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1214 | rx_buffer_info->skb = NULL; |
| 1215 | |
Alexander Duyck | 21fa4e6 | 2009-06-04 15:59:49 +0000 | [diff] [blame] | 1216 | if (rx_buffer_info->dma) { |
Mallikarjuna R Chilakala | 43634e8 | 2010-02-25 23:14:37 +0000 | [diff] [blame] | 1217 | if ((adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) && |
| 1218 | (!(staterr & IXGBE_RXD_STAT_EOP)) && |
Mallikarjuna R Chilakala | e8171aa | 2010-05-13 17:33:21 +0000 | [diff] [blame] | 1219 | (!(skb->prev))) { |
Mallikarjuna R Chilakala | 43634e8 | 2010-02-25 23:14:37 +0000 | [diff] [blame] | 1220 | /* |
| 1221 | * When HWRSC is enabled, delay unmapping |
| 1222 | * of the first packet. It carries the |
| 1223 | * header information, HW may still |
| 1224 | * access the header after the writeback. |
| 1225 | * Only unmap it when EOP is reached |
| 1226 | */ |
Mallikarjuna R Chilakala | e8171aa | 2010-05-13 17:33:21 +0000 | [diff] [blame] | 1227 | IXGBE_RSC_CB(skb)->delay_unmap = true; |
Mallikarjuna R Chilakala | 43634e8 | 2010-02-25 23:14:37 +0000 | [diff] [blame] | 1228 | IXGBE_RSC_CB(skb)->dma = rx_buffer_info->dma; |
Mallikarjuna R Chilakala | e8171aa | 2010-05-13 17:33:21 +0000 | [diff] [blame] | 1229 | } else { |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 1230 | dma_unmap_single(&pdev->dev, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1231 | rx_buffer_info->dma, |
| 1232 | rx_ring->rx_buf_len, |
| 1233 | DMA_FROM_DEVICE); |
Mallikarjuna R Chilakala | e8171aa | 2010-05-13 17:33:21 +0000 | [diff] [blame] | 1234 | } |
Jesse Brandeburg | 4f57ca6 | 2009-06-30 11:44:56 +0000 | [diff] [blame] | 1235 | rx_buffer_info->dma = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1236 | skb_put(skb, len); |
| 1237 | } |
| 1238 | |
| 1239 | if (upper_len) { |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 1240 | dma_unmap_page(&pdev->dev, rx_buffer_info->page_dma, |
| 1241 | PAGE_SIZE / 2, DMA_FROM_DEVICE); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1242 | rx_buffer_info->page_dma = 0; |
| 1243 | skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1244 | rx_buffer_info->page, |
| 1245 | rx_buffer_info->page_offset, |
| 1246 | upper_len); |
Jesse Brandeburg | 762f4c5 | 2008-09-11 19:58:43 -0700 | [diff] [blame] | 1247 | |
| 1248 | if ((rx_ring->rx_buf_len > (PAGE_SIZE / 2)) || |
| 1249 | (page_count(rx_buffer_info->page) != 1)) |
| 1250 | rx_buffer_info->page = NULL; |
| 1251 | else |
| 1252 | get_page(rx_buffer_info->page); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1253 | |
| 1254 | skb->len += upper_len; |
| 1255 | skb->data_len += upper_len; |
| 1256 | skb->truesize += upper_len; |
| 1257 | } |
| 1258 | |
| 1259 | i++; |
| 1260 | if (i == rx_ring->count) |
| 1261 | i = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1262 | |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 1263 | next_rxd = IXGBE_RX_DESC_ADV(rx_ring, i); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1264 | prefetch(next_rxd); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1265 | cleaned_count++; |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1266 | |
Peter P Waskiewicz Jr | 0c19d6a | 2009-07-30 12:25:28 +0000 | [diff] [blame] | 1267 | if (adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1268 | rsc_count = ixgbe_get_rsc_count(rx_desc); |
| 1269 | |
| 1270 | if (rsc_count) { |
| 1271 | u32 nextp = (staterr & IXGBE_RXDADV_NEXTP_MASK) >> |
| 1272 | IXGBE_RXDADV_NEXTP_SHIFT; |
| 1273 | next_buffer = &rx_ring->rx_buffer_info[nextp]; |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1274 | } else { |
| 1275 | next_buffer = &rx_ring->rx_buffer_info[i]; |
| 1276 | } |
| 1277 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1278 | if (staterr & IXGBE_RXD_STAT_EOP) { |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1279 | if (skb->prev) |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1280 | skb = ixgbe_transform_rsc_queue(skb, |
| 1281 | &(rx_ring->rsc_count)); |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 1282 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) { |
Mallikarjuna R Chilakala | e8171aa | 2010-05-13 17:33:21 +0000 | [diff] [blame] | 1283 | if (IXGBE_RSC_CB(skb)->delay_unmap) { |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 1284 | dma_unmap_single(&pdev->dev, |
| 1285 | IXGBE_RSC_CB(skb)->dma, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1286 | rx_ring->rx_buf_len, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 1287 | DMA_FROM_DEVICE); |
Mallikarjuna R Chilakala | fd3686a | 2010-03-19 04:41:33 +0000 | [diff] [blame] | 1288 | IXGBE_RSC_CB(skb)->dma = 0; |
Mallikarjuna R Chilakala | e8171aa | 2010-05-13 17:33:21 +0000 | [diff] [blame] | 1289 | IXGBE_RSC_CB(skb)->delay_unmap = false; |
Mallikarjuna R Chilakala | fd3686a | 2010-03-19 04:41:33 +0000 | [diff] [blame] | 1290 | } |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 1291 | if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED) |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1292 | rx_ring->rsc_count += |
| 1293 | skb_shinfo(skb)->nr_frags; |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 1294 | else |
| 1295 | rx_ring->rsc_count++; |
| 1296 | rx_ring->rsc_flush++; |
| 1297 | } |
Eric Dumazet | de1036b | 2010-10-20 23:00:04 +0000 | [diff] [blame^] | 1298 | u64_stats_update_begin(&rx_ring->syncp); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1299 | rx_ring->stats.packets++; |
| 1300 | rx_ring->stats.bytes += skb->len; |
Eric Dumazet | de1036b | 2010-10-20 23:00:04 +0000 | [diff] [blame^] | 1301 | u64_stats_update_end(&rx_ring->syncp); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1302 | } else { |
Yi Zou | 6e455b89 | 2009-08-06 13:05:44 +0000 | [diff] [blame] | 1303 | if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED) { |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1304 | rx_buffer_info->skb = next_buffer->skb; |
| 1305 | rx_buffer_info->dma = next_buffer->dma; |
| 1306 | next_buffer->skb = skb; |
| 1307 | next_buffer->dma = 0; |
| 1308 | } else { |
| 1309 | skb->next = next_buffer->skb; |
| 1310 | skb->next->prev = skb; |
| 1311 | } |
Jesse Brandeburg | 7ca3bc5 | 2009-12-03 11:33:29 +0000 | [diff] [blame] | 1312 | rx_ring->non_eop_descs++; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1313 | goto next_desc; |
| 1314 | } |
| 1315 | |
| 1316 | if (staterr & IXGBE_RXDADV_ERR_FRAME_ERR_MASK) { |
| 1317 | dev_kfree_skb_irq(skb); |
| 1318 | goto next_desc; |
| 1319 | } |
| 1320 | |
Don Skidmore | 8bae1b2 | 2009-07-23 18:00:39 +0000 | [diff] [blame] | 1321 | ixgbe_rx_checksum(adapter, rx_desc, skb); |
Ayyappan Veeraiyan | d2f4fbe | 2008-02-01 15:59:19 -0800 | [diff] [blame] | 1322 | |
| 1323 | /* probably a little skewed due to removing CRC */ |
| 1324 | total_rx_bytes += skb->len; |
| 1325 | total_rx_packets++; |
| 1326 | |
Jesse Brandeburg | 74ce8dd | 2008-09-11 20:03:23 -0700 | [diff] [blame] | 1327 | skb->protocol = eth_type_trans(skb, adapter->netdev); |
Yi Zou | 332d4a7 | 2009-05-13 13:11:53 +0000 | [diff] [blame] | 1328 | #ifdef IXGBE_FCOE |
| 1329 | /* if ddp, not passing to ULD unless for FCP_RSP or error */ |
Yi Zou | 3d8fd38 | 2009-06-08 14:38:44 +0000 | [diff] [blame] | 1330 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { |
| 1331 | ddp_bytes = ixgbe_fcoe_ddp(adapter, rx_desc, skb); |
| 1332 | if (!ddp_bytes) |
Yi Zou | 332d4a7 | 2009-05-13 13:11:53 +0000 | [diff] [blame] | 1333 | goto next_desc; |
Yi Zou | 3d8fd38 | 2009-06-08 14:38:44 +0000 | [diff] [blame] | 1334 | } |
Yi Zou | 332d4a7 | 2009-05-13 13:11:53 +0000 | [diff] [blame] | 1335 | #endif /* IXGBE_FCOE */ |
Alexander Duyck | fdaff1c | 2009-05-06 10:43:47 +0000 | [diff] [blame] | 1336 | ixgbe_receive_skb(q_vector, skb, staterr, rx_ring, rx_desc); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1337 | |
| 1338 | next_desc: |
| 1339 | rx_desc->wb.upper.status_error = 0; |
| 1340 | |
| 1341 | /* return some buffers to hardware, one at a time is too slow */ |
| 1342 | if (cleaned_count >= IXGBE_RX_BUFFER_WRITE) { |
| 1343 | ixgbe_alloc_rx_buffers(adapter, rx_ring, cleaned_count); |
| 1344 | cleaned_count = 0; |
| 1345 | } |
| 1346 | |
| 1347 | /* use prefetched values */ |
| 1348 | rx_desc = next_rxd; |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 1349 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1350 | |
| 1351 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); |
Mallikarjuna R Chilakala | 177db6f | 2008-06-18 15:32:19 -0700 | [diff] [blame] | 1352 | } |
| 1353 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1354 | rx_ring->next_to_clean = i; |
| 1355 | cleaned_count = IXGBE_DESC_UNUSED(rx_ring); |
| 1356 | |
| 1357 | if (cleaned_count) |
| 1358 | ixgbe_alloc_rx_buffers(adapter, rx_ring, cleaned_count); |
| 1359 | |
Yi Zou | 3d8fd38 | 2009-06-08 14:38:44 +0000 | [diff] [blame] | 1360 | #ifdef IXGBE_FCOE |
| 1361 | /* include DDPed FCoE data */ |
| 1362 | if (ddp_bytes > 0) { |
| 1363 | unsigned int mss; |
| 1364 | |
| 1365 | mss = adapter->netdev->mtu - sizeof(struct fcoe_hdr) - |
| 1366 | sizeof(struct fc_frame_header) - |
| 1367 | sizeof(struct fcoe_crc_eof); |
| 1368 | if (mss > 512) |
| 1369 | mss &= ~511; |
| 1370 | total_rx_bytes += ddp_bytes; |
| 1371 | total_rx_packets += DIV_ROUND_UP(ddp_bytes, mss); |
| 1372 | } |
| 1373 | #endif /* IXGBE_FCOE */ |
| 1374 | |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1375 | rx_ring->total_packets += total_rx_packets; |
| 1376 | rx_ring->total_bytes += total_rx_bytes; |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1377 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1378 | return cleaned; |
| 1379 | } |
| 1380 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1381 | static int ixgbe_clean_rxonly(struct napi_struct *, int); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1382 | /** |
| 1383 | * ixgbe_configure_msix - Configure MSI-X hardware |
| 1384 | * @adapter: board private structure |
| 1385 | * |
| 1386 | * ixgbe_configure_msix sets up the hardware to properly generate MSI-X |
| 1387 | * interrupts. |
| 1388 | **/ |
| 1389 | static void ixgbe_configure_msix(struct ixgbe_adapter *adapter) |
| 1390 | { |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1391 | struct ixgbe_q_vector *q_vector; |
| 1392 | int i, j, q_vectors, v_idx, r_idx; |
| 1393 | u32 mask; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1394 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1395 | q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
| 1396 | |
Jesse Brandeburg | 4df1046 | 2009-03-13 22:15:31 +0000 | [diff] [blame] | 1397 | /* |
| 1398 | * Populate the IVAR table and set the ITR values to the |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1399 | * corresponding register. |
| 1400 | */ |
| 1401 | for (v_idx = 0; v_idx < q_vectors; v_idx++) { |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 1402 | q_vector = adapter->q_vector[v_idx]; |
Akinobu Mita | 984b3f5 | 2010-03-05 13:41:37 -0800 | [diff] [blame] | 1403 | /* XXX for_each_set_bit(...) */ |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1404 | r_idx = find_first_bit(q_vector->rxr_idx, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1405 | adapter->num_rx_queues); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1406 | |
| 1407 | for (i = 0; i < q_vector->rxr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1408 | j = adapter->rx_ring[r_idx]->reg_idx; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1409 | ixgbe_set_ivar(adapter, 0, j, v_idx); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1410 | r_idx = find_next_bit(q_vector->rxr_idx, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1411 | adapter->num_rx_queues, |
| 1412 | r_idx + 1); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1413 | } |
| 1414 | r_idx = find_first_bit(q_vector->txr_idx, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1415 | adapter->num_tx_queues); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1416 | |
| 1417 | for (i = 0; i < q_vector->txr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1418 | j = adapter->tx_ring[r_idx]->reg_idx; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1419 | ixgbe_set_ivar(adapter, 1, j, v_idx); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1420 | r_idx = find_next_bit(q_vector->txr_idx, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1421 | adapter->num_tx_queues, |
| 1422 | r_idx + 1); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1423 | } |
| 1424 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1425 | if (q_vector->txr_count && !q_vector->rxr_count) |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 1426 | /* tx only */ |
| 1427 | q_vector->eitr = adapter->tx_eitr_param; |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 1428 | else if (q_vector->rxr_count) |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 1429 | /* rx or mixed */ |
| 1430 | q_vector->eitr = adapter->rx_eitr_param; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1431 | |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1432 | ixgbe_write_eitr(q_vector); |
Peter Waskiewicz | b25ebfd | 2010-10-05 01:27:49 +0000 | [diff] [blame] | 1433 | /* If Flow Director is enabled, set interrupt affinity */ |
| 1434 | if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) || |
| 1435 | (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) { |
| 1436 | /* |
| 1437 | * Allocate the affinity_hint cpumask, assign the mask |
| 1438 | * for this vector, and set our affinity_hint for |
| 1439 | * this irq. |
| 1440 | */ |
| 1441 | if (!alloc_cpumask_var(&q_vector->affinity_mask, |
| 1442 | GFP_KERNEL)) |
| 1443 | return; |
| 1444 | cpumask_set_cpu(v_idx, q_vector->affinity_mask); |
| 1445 | irq_set_affinity_hint(adapter->msix_entries[v_idx].vector, |
| 1446 | q_vector->affinity_mask); |
| 1447 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1448 | } |
| 1449 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1450 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) |
| 1451 | ixgbe_set_ivar(adapter, -1, IXGBE_IVAR_OTHER_CAUSES_INDEX, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1452 | v_idx); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1453 | else if (adapter->hw.mac.type == ixgbe_mac_82599EB) |
| 1454 | ixgbe_set_ivar(adapter, -1, 1, v_idx); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1455 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITR(v_idx), 1950); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1456 | |
Jesse Brandeburg | 41fb924 | 2008-09-11 19:55:58 -0700 | [diff] [blame] | 1457 | /* set up to autoclear timer, and the vectors */ |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1458 | mask = IXGBE_EIMS_ENABLE_MASK; |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 1459 | if (adapter->num_vfs) |
| 1460 | mask &= ~(IXGBE_EIMS_OTHER | |
| 1461 | IXGBE_EIMS_MAILBOX | |
| 1462 | IXGBE_EIMS_LSC); |
| 1463 | else |
| 1464 | mask &= ~(IXGBE_EIMS_OTHER | IXGBE_EIMS_LSC); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1465 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIAC, mask); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1466 | } |
| 1467 | |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1468 | enum latency_range { |
| 1469 | lowest_latency = 0, |
| 1470 | low_latency = 1, |
| 1471 | bulk_latency = 2, |
| 1472 | latency_invalid = 255 |
| 1473 | }; |
| 1474 | |
| 1475 | /** |
| 1476 | * ixgbe_update_itr - update the dynamic ITR value based on statistics |
| 1477 | * @adapter: pointer to adapter |
| 1478 | * @eitr: eitr setting (ints per sec) to give last timeslice |
| 1479 | * @itr_setting: current throttle rate in ints/second |
| 1480 | * @packets: the number of packets during this measurement interval |
| 1481 | * @bytes: the number of bytes during this measurement interval |
| 1482 | * |
| 1483 | * Stores a new ITR value based on packets and byte |
| 1484 | * counts during the last interrupt. The advantage of per interrupt |
| 1485 | * computation is faster updates and more accurate ITR for the current |
| 1486 | * traffic pattern. Constants in this function were computed |
| 1487 | * based on theoretical maximum wire speed and thresholds were set based |
| 1488 | * on testing data as well as attempting to minimize response time |
| 1489 | * while increasing bulk throughput. |
| 1490 | * this functionality is controlled by the InterruptThrottleRate module |
| 1491 | * parameter (see ixgbe_param.c) |
| 1492 | **/ |
| 1493 | static u8 ixgbe_update_itr(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1494 | u32 eitr, u8 itr_setting, |
| 1495 | int packets, int bytes) |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1496 | { |
| 1497 | unsigned int retval = itr_setting; |
| 1498 | u32 timepassed_us; |
| 1499 | u64 bytes_perint; |
| 1500 | |
| 1501 | if (packets == 0) |
| 1502 | goto update_itr_done; |
| 1503 | |
| 1504 | |
| 1505 | /* simple throttlerate management |
| 1506 | * 0-20MB/s lowest (100000 ints/s) |
| 1507 | * 20-100MB/s low (20000 ints/s) |
| 1508 | * 100-1249MB/s bulk (8000 ints/s) |
| 1509 | */ |
| 1510 | /* what was last interrupt timeslice? */ |
| 1511 | timepassed_us = 1000000/eitr; |
| 1512 | bytes_perint = bytes / timepassed_us; /* bytes/usec */ |
| 1513 | |
| 1514 | switch (itr_setting) { |
| 1515 | case lowest_latency: |
| 1516 | if (bytes_perint > adapter->eitr_low) |
| 1517 | retval = low_latency; |
| 1518 | break; |
| 1519 | case low_latency: |
| 1520 | if (bytes_perint > adapter->eitr_high) |
| 1521 | retval = bulk_latency; |
| 1522 | else if (bytes_perint <= adapter->eitr_low) |
| 1523 | retval = lowest_latency; |
| 1524 | break; |
| 1525 | case bulk_latency: |
| 1526 | if (bytes_perint <= adapter->eitr_high) |
| 1527 | retval = low_latency; |
| 1528 | break; |
| 1529 | } |
| 1530 | |
| 1531 | update_itr_done: |
| 1532 | return retval; |
| 1533 | } |
| 1534 | |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 1535 | /** |
| 1536 | * ixgbe_write_eitr - write EITR register in hardware specific way |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1537 | * @q_vector: structure containing interrupt and ring information |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 1538 | * |
| 1539 | * This function is made to be called by ethtool and by the driver |
| 1540 | * when it needs to update EITR registers at runtime. Hardware |
| 1541 | * specific quirks/differences are taken care of here. |
| 1542 | */ |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1543 | void ixgbe_write_eitr(struct ixgbe_q_vector *q_vector) |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 1544 | { |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1545 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 1546 | struct ixgbe_hw *hw = &adapter->hw; |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1547 | int v_idx = q_vector->v_idx; |
| 1548 | u32 itr_reg = EITR_INTS_PER_SEC_TO_REG(q_vector->eitr); |
| 1549 | |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 1550 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
| 1551 | /* must write high and low 16 bits to reset counter */ |
| 1552 | itr_reg |= (itr_reg << 16); |
| 1553 | } else if (adapter->hw.mac.type == ixgbe_mac_82599EB) { |
| 1554 | /* |
Jesse Brandeburg | f8d1dca | 2010-04-27 01:37:20 +0000 | [diff] [blame] | 1555 | * 82599 can support a value of zero, so allow it for |
| 1556 | * max interrupt rate, but there is an errata where it can |
| 1557 | * not be zero with RSC |
| 1558 | */ |
| 1559 | if (itr_reg == 8 && |
| 1560 | !(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) |
| 1561 | itr_reg = 0; |
| 1562 | |
| 1563 | /* |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 1564 | * set the WDIS bit to not clear the timer bits and cause an |
| 1565 | * immediate assertion of the interrupt |
| 1566 | */ |
| 1567 | itr_reg |= IXGBE_EITR_CNT_WDIS; |
| 1568 | } |
| 1569 | IXGBE_WRITE_REG(hw, IXGBE_EITR(v_idx), itr_reg); |
| 1570 | } |
| 1571 | |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1572 | static void ixgbe_set_itr_msix(struct ixgbe_q_vector *q_vector) |
| 1573 | { |
| 1574 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1575 | u32 new_itr; |
| 1576 | u8 current_itr, ret_itr; |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1577 | int i, r_idx; |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1578 | struct ixgbe_ring *rx_ring, *tx_ring; |
| 1579 | |
| 1580 | r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); |
| 1581 | for (i = 0; i < q_vector->txr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1582 | tx_ring = adapter->tx_ring[r_idx]; |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1583 | ret_itr = ixgbe_update_itr(adapter, q_vector->eitr, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1584 | q_vector->tx_itr, |
| 1585 | tx_ring->total_packets, |
| 1586 | tx_ring->total_bytes); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1587 | /* if the result for this queue would decrease interrupt |
| 1588 | * rate for this vector then use that result */ |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 1589 | q_vector->tx_itr = ((q_vector->tx_itr > ret_itr) ? |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1590 | q_vector->tx_itr - 1 : ret_itr); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1591 | r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1592 | r_idx + 1); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1593 | } |
| 1594 | |
| 1595 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); |
| 1596 | for (i = 0; i < q_vector->rxr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1597 | rx_ring = adapter->rx_ring[r_idx]; |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1598 | ret_itr = ixgbe_update_itr(adapter, q_vector->eitr, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1599 | q_vector->rx_itr, |
| 1600 | rx_ring->total_packets, |
| 1601 | rx_ring->total_bytes); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1602 | /* if the result for this queue would decrease interrupt |
| 1603 | * rate for this vector then use that result */ |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 1604 | q_vector->rx_itr = ((q_vector->rx_itr > ret_itr) ? |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1605 | q_vector->rx_itr - 1 : ret_itr); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1606 | r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1607 | r_idx + 1); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1608 | } |
| 1609 | |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 1610 | current_itr = max(q_vector->rx_itr, q_vector->tx_itr); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1611 | |
| 1612 | switch (current_itr) { |
| 1613 | /* counts and packets in update_itr are dependent on these numbers */ |
| 1614 | case lowest_latency: |
| 1615 | new_itr = 100000; |
| 1616 | break; |
| 1617 | case low_latency: |
| 1618 | new_itr = 20000; /* aka hwitr = ~200 */ |
| 1619 | break; |
| 1620 | case bulk_latency: |
| 1621 | default: |
| 1622 | new_itr = 8000; |
| 1623 | break; |
| 1624 | } |
| 1625 | |
| 1626 | if (new_itr != q_vector->eitr) { |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1627 | /* do an exponential smoothing */ |
| 1628 | new_itr = ((q_vector->eitr * 90)/100) + ((new_itr * 10)/100); |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 1629 | |
| 1630 | /* save the algorithm value here, not the smoothed one */ |
| 1631 | q_vector->eitr = new_itr; |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1632 | |
| 1633 | ixgbe_write_eitr(q_vector); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1634 | } |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1635 | } |
| 1636 | |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 1637 | /** |
| 1638 | * ixgbe_check_overtemp_task - worker thread to check over tempurature |
| 1639 | * @work: pointer to work_struct containing our data |
| 1640 | **/ |
| 1641 | static void ixgbe_check_overtemp_task(struct work_struct *work) |
| 1642 | { |
| 1643 | struct ixgbe_adapter *adapter = container_of(work, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1644 | struct ixgbe_adapter, |
| 1645 | check_overtemp_task); |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 1646 | struct ixgbe_hw *hw = &adapter->hw; |
| 1647 | u32 eicr = adapter->interrupt_event; |
| 1648 | |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 1649 | if (!(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE)) |
| 1650 | return; |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 1651 | |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 1652 | switch (hw->device_id) { |
| 1653 | case IXGBE_DEV_ID_82599_T3_LOM: { |
| 1654 | u32 autoneg; |
| 1655 | bool link_up = false; |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 1656 | |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 1657 | if (hw->mac.ops.check_link) |
| 1658 | hw->mac.ops.check_link(hw, &autoneg, &link_up, false); |
| 1659 | |
| 1660 | if (((eicr & IXGBE_EICR_GPI_SDP0) && (!link_up)) || |
| 1661 | (eicr & IXGBE_EICR_LSC)) |
| 1662 | /* Check if this is due to overtemp */ |
| 1663 | if (hw->phy.ops.check_overtemp(hw) == IXGBE_ERR_OVERTEMP) |
| 1664 | break; |
| 1665 | return; |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 1666 | } |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 1667 | default: |
| 1668 | if (!(eicr & IXGBE_EICR_GPI_SDP0)) |
| 1669 | return; |
| 1670 | break; |
| 1671 | } |
| 1672 | e_crit(drv, |
| 1673 | "Network adapter has been stopped because it has over heated. " |
| 1674 | "Restart the computer. If the problem persists, " |
| 1675 | "power off the system and replace the adapter\n"); |
| 1676 | /* write to clear the interrupt */ |
| 1677 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP0); |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 1678 | } |
| 1679 | |
Jesse Brandeburg | 0befdb3 | 2008-10-31 00:46:40 -0700 | [diff] [blame] | 1680 | static void ixgbe_check_fan_failure(struct ixgbe_adapter *adapter, u32 eicr) |
| 1681 | { |
| 1682 | struct ixgbe_hw *hw = &adapter->hw; |
| 1683 | |
| 1684 | if ((adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) && |
| 1685 | (eicr & IXGBE_EICR_GPI_SDP1)) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 1686 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
Jesse Brandeburg | 0befdb3 | 2008-10-31 00:46:40 -0700 | [diff] [blame] | 1687 | /* write to clear the interrupt */ |
| 1688 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1); |
| 1689 | } |
| 1690 | } |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 1691 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1692 | static void ixgbe_check_sfp_event(struct ixgbe_adapter *adapter, u32 eicr) |
| 1693 | { |
| 1694 | struct ixgbe_hw *hw = &adapter->hw; |
| 1695 | |
| 1696 | if (eicr & IXGBE_EICR_GPI_SDP1) { |
| 1697 | /* Clear the interrupt */ |
| 1698 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1); |
| 1699 | schedule_work(&adapter->multispeed_fiber_task); |
| 1700 | } else if (eicr & IXGBE_EICR_GPI_SDP2) { |
| 1701 | /* Clear the interrupt */ |
| 1702 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP2); |
| 1703 | schedule_work(&adapter->sfp_config_module_task); |
| 1704 | } else { |
| 1705 | /* Interrupt isn't for us... */ |
| 1706 | return; |
| 1707 | } |
| 1708 | } |
| 1709 | |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 1710 | static void ixgbe_check_lsc(struct ixgbe_adapter *adapter) |
| 1711 | { |
| 1712 | struct ixgbe_hw *hw = &adapter->hw; |
| 1713 | |
| 1714 | adapter->lsc_int++; |
| 1715 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; |
| 1716 | adapter->link_check_timeout = jiffies; |
| 1717 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { |
| 1718 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_LSC); |
Nelson, Shannon | 8a0717f | 2009-11-12 18:47:11 +0000 | [diff] [blame] | 1719 | IXGBE_WRITE_FLUSH(hw); |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 1720 | schedule_work(&adapter->watchdog_task); |
| 1721 | } |
| 1722 | } |
| 1723 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1724 | static irqreturn_t ixgbe_msix_lsc(int irq, void *data) |
| 1725 | { |
| 1726 | struct net_device *netdev = data; |
| 1727 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 1728 | struct ixgbe_hw *hw = &adapter->hw; |
Don Skidmore | 5403750 | 2009-02-21 15:42:56 -0800 | [diff] [blame] | 1729 | u32 eicr; |
| 1730 | |
| 1731 | /* |
| 1732 | * Workaround for Silicon errata. Use clear-by-write instead |
| 1733 | * of clear-by-read. Reading with EICS will return the |
| 1734 | * interrupt causes without clearing, which later be done |
| 1735 | * with the write to EICR. |
| 1736 | */ |
| 1737 | eicr = IXGBE_READ_REG(hw, IXGBE_EICS); |
| 1738 | IXGBE_WRITE_REG(hw, IXGBE_EICR, eicr); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1739 | |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 1740 | if (eicr & IXGBE_EICR_LSC) |
| 1741 | ixgbe_check_lsc(adapter); |
Ayyappan Veeraiyan | d4f8088 | 2008-02-01 15:58:41 -0800 | [diff] [blame] | 1742 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 1743 | if (eicr & IXGBE_EICR_MAILBOX) |
| 1744 | ixgbe_msg_task(adapter); |
| 1745 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1746 | if (hw->mac.type == ixgbe_mac_82598EB) |
| 1747 | ixgbe_check_fan_failure(adapter, eicr); |
Jesse Brandeburg | 0befdb3 | 2008-10-31 00:46:40 -0700 | [diff] [blame] | 1748 | |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 1749 | if (hw->mac.type == ixgbe_mac_82599EB) { |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 1750 | ixgbe_check_sfp_event(adapter, eicr); |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 1751 | adapter->interrupt_event = eicr; |
| 1752 | if ((adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) && |
| 1753 | ((eicr & IXGBE_EICR_GPI_SDP0) || (eicr & IXGBE_EICR_LSC))) |
| 1754 | schedule_work(&adapter->check_overtemp_task); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 1755 | |
| 1756 | /* Handle Flow Director Full threshold interrupt */ |
| 1757 | if (eicr & IXGBE_EICR_FLOW_DIR) { |
| 1758 | int i; |
| 1759 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_FLOW_DIR); |
| 1760 | /* Disable transmits before FDIR Re-initialization */ |
| 1761 | netif_tx_stop_all_queues(netdev); |
| 1762 | for (i = 0; i < adapter->num_tx_queues; i++) { |
| 1763 | struct ixgbe_ring *tx_ring = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1764 | adapter->tx_ring[i]; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 1765 | if (test_and_clear_bit(__IXGBE_FDIR_INIT_DONE, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1766 | &tx_ring->reinit_state)) |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 1767 | schedule_work(&adapter->fdir_reinit_task); |
| 1768 | } |
| 1769 | } |
| 1770 | } |
Ayyappan Veeraiyan | d4f8088 | 2008-02-01 15:58:41 -0800 | [diff] [blame] | 1771 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
| 1772 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMS_OTHER); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1773 | |
| 1774 | return IRQ_HANDLED; |
| 1775 | } |
| 1776 | |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1777 | static inline void ixgbe_irq_enable_queues(struct ixgbe_adapter *adapter, |
| 1778 | u64 qmask) |
| 1779 | { |
| 1780 | u32 mask; |
| 1781 | |
| 1782 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
| 1783 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
| 1784 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask); |
| 1785 | } else { |
| 1786 | mask = (qmask & 0xFFFFFFFF); |
| 1787 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS_EX(0), mask); |
| 1788 | mask = (qmask >> 32); |
| 1789 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS_EX(1), mask); |
| 1790 | } |
| 1791 | /* skip the flush */ |
| 1792 | } |
| 1793 | |
| 1794 | static inline void ixgbe_irq_disable_queues(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1795 | u64 qmask) |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1796 | { |
| 1797 | u32 mask; |
| 1798 | |
| 1799 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
| 1800 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
| 1801 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, mask); |
| 1802 | } else { |
| 1803 | mask = (qmask & 0xFFFFFFFF); |
| 1804 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(0), mask); |
| 1805 | mask = (qmask >> 32); |
| 1806 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), mask); |
| 1807 | } |
| 1808 | /* skip the flush */ |
| 1809 | } |
| 1810 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1811 | static irqreturn_t ixgbe_msix_clean_tx(int irq, void *data) |
| 1812 | { |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1813 | struct ixgbe_q_vector *q_vector = data; |
| 1814 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1815 | struct ixgbe_ring *tx_ring; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1816 | int i, r_idx; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1817 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1818 | if (!q_vector->txr_count) |
| 1819 | return IRQ_HANDLED; |
| 1820 | |
| 1821 | r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); |
| 1822 | for (i = 0; i < q_vector->txr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1823 | tx_ring = adapter->tx_ring[r_idx]; |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1824 | tx_ring->total_bytes = 0; |
| 1825 | tx_ring->total_packets = 0; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1826 | r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1827 | r_idx + 1); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1828 | } |
| 1829 | |
Jesse Brandeburg | 9b47144 | 2009-12-03 11:33:54 +0000 | [diff] [blame] | 1830 | /* EIAM disabled interrupts (on this vector) for us */ |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1831 | napi_schedule(&q_vector->napi); |
| 1832 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1833 | return IRQ_HANDLED; |
| 1834 | } |
| 1835 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1836 | /** |
| 1837 | * ixgbe_msix_clean_rx - single unshared vector rx clean (all queues) |
| 1838 | * @irq: unused |
| 1839 | * @data: pointer to our q_vector struct for this interrupt vector |
| 1840 | **/ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1841 | static irqreturn_t ixgbe_msix_clean_rx(int irq, void *data) |
| 1842 | { |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1843 | struct ixgbe_q_vector *q_vector = data; |
| 1844 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1845 | struct ixgbe_ring *rx_ring; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1846 | int r_idx; |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 1847 | int i; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1848 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1849 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 1850 | for (i = 0; i < q_vector->rxr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1851 | rx_ring = adapter->rx_ring[r_idx]; |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 1852 | rx_ring->total_bytes = 0; |
| 1853 | rx_ring->total_packets = 0; |
| 1854 | r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1855 | r_idx + 1); |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 1856 | } |
| 1857 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1858 | if (!q_vector->rxr_count) |
| 1859 | return IRQ_HANDLED; |
| 1860 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1861 | /* disable interrupts on this vector only */ |
Jesse Brandeburg | 9b47144 | 2009-12-03 11:33:54 +0000 | [diff] [blame] | 1862 | /* EIAM disabled interrupts (on this vector) for us */ |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 1863 | napi_schedule(&q_vector->napi); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1864 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1865 | return IRQ_HANDLED; |
| 1866 | } |
| 1867 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1868 | static irqreturn_t ixgbe_msix_clean_many(int irq, void *data) |
| 1869 | { |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1870 | struct ixgbe_q_vector *q_vector = data; |
| 1871 | struct ixgbe_adapter *adapter = q_vector->adapter; |
| 1872 | struct ixgbe_ring *ring; |
| 1873 | int r_idx; |
| 1874 | int i; |
| 1875 | |
| 1876 | if (!q_vector->txr_count && !q_vector->rxr_count) |
| 1877 | return IRQ_HANDLED; |
| 1878 | |
| 1879 | r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); |
| 1880 | for (i = 0; i < q_vector->txr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1881 | ring = adapter->tx_ring[r_idx]; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1882 | ring->total_bytes = 0; |
| 1883 | ring->total_packets = 0; |
| 1884 | r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1885 | r_idx + 1); |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1886 | } |
| 1887 | |
| 1888 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); |
| 1889 | for (i = 0; i < q_vector->rxr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1890 | ring = adapter->rx_ring[r_idx]; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1891 | ring->total_bytes = 0; |
| 1892 | ring->total_packets = 0; |
| 1893 | r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1894 | r_idx + 1); |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1895 | } |
| 1896 | |
Jesse Brandeburg | 9b47144 | 2009-12-03 11:33:54 +0000 | [diff] [blame] | 1897 | /* EIAM disabled interrupts (on this vector) for us */ |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1898 | napi_schedule(&q_vector->napi); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1899 | |
| 1900 | return IRQ_HANDLED; |
| 1901 | } |
| 1902 | |
| 1903 | /** |
| 1904 | * ixgbe_clean_rxonly - msix (aka one shot) rx clean routine |
| 1905 | * @napi: napi struct with our devices info in it |
| 1906 | * @budget: amount of work driver is allowed to do this pass, in packets |
| 1907 | * |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1908 | * This function is optimized for cleaning one queue only on a single |
| 1909 | * q_vector!!! |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1910 | **/ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1911 | static int ixgbe_clean_rxonly(struct napi_struct *napi, int budget) |
| 1912 | { |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1913 | struct ixgbe_q_vector *q_vector = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1914 | container_of(napi, struct ixgbe_q_vector, napi); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1915 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1916 | struct ixgbe_ring *rx_ring = NULL; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1917 | int work_done = 0; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1918 | long r_idx; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1919 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1920 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1921 | rx_ring = adapter->rx_ring[r_idx]; |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 1922 | #ifdef CONFIG_IXGBE_DCA |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 1923 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 1924 | ixgbe_update_rx_dca(adapter, rx_ring); |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 1925 | #endif |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1926 | |
Herbert Xu | 78b6f4c | 2009-01-18 21:49:45 -0800 | [diff] [blame] | 1927 | ixgbe_clean_rx_irq(q_vector, rx_ring, &work_done, budget); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1928 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 1929 | /* If all Rx work done, exit the polling mode */ |
| 1930 | if (work_done < budget) { |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 1931 | napi_complete(napi); |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 1932 | if (adapter->rx_itr_setting & 1) |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 1933 | ixgbe_set_itr_msix(q_vector); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1934 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1935 | ixgbe_irq_enable_queues(adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1936 | ((u64)1 << q_vector->v_idx)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 1937 | } |
| 1938 | |
| 1939 | return work_done; |
| 1940 | } |
| 1941 | |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1942 | /** |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1943 | * ixgbe_clean_rxtx_many - msix (aka one shot) rx clean routine |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1944 | * @napi: napi struct with our devices info in it |
| 1945 | * @budget: amount of work driver is allowed to do this pass, in packets |
| 1946 | * |
| 1947 | * This function will clean more than one rx queue associated with a |
| 1948 | * q_vector. |
| 1949 | **/ |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1950 | static int ixgbe_clean_rxtx_many(struct napi_struct *napi, int budget) |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1951 | { |
| 1952 | struct ixgbe_q_vector *q_vector = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1953 | container_of(napi, struct ixgbe_q_vector, napi); |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1954 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1955 | struct ixgbe_ring *ring = NULL; |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1956 | int work_done = 0, i; |
| 1957 | long r_idx; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1958 | bool tx_clean_complete = true; |
| 1959 | |
| 1960 | r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); |
| 1961 | for (i = 0; i < q_vector->txr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1962 | ring = adapter->tx_ring[r_idx]; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1963 | #ifdef CONFIG_IXGBE_DCA |
| 1964 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
| 1965 | ixgbe_update_tx_dca(adapter, ring); |
| 1966 | #endif |
| 1967 | tx_clean_complete &= ixgbe_clean_tx_irq(q_vector, ring); |
| 1968 | r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1969 | r_idx + 1); |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1970 | } |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1971 | |
| 1972 | /* attempt to distribute budget to each queue fairly, but don't allow |
| 1973 | * the budget to go below 1 because we'll exit polling */ |
| 1974 | budget /= (q_vector->rxr_count ?: 1); |
| 1975 | budget = max(budget, 1); |
| 1976 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); |
| 1977 | for (i = 0; i < q_vector->rxr_count; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1978 | ring = adapter->rx_ring[r_idx]; |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 1979 | #ifdef CONFIG_IXGBE_DCA |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1980 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1981 | ixgbe_update_rx_dca(adapter, ring); |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1982 | #endif |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 1983 | ixgbe_clean_rx_irq(q_vector, ring, &work_done, budget); |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1984 | r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1985 | r_idx + 1); |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1986 | } |
| 1987 | |
| 1988 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 1989 | ring = adapter->rx_ring[r_idx]; |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1990 | /* If all Rx work done, exit the polling mode */ |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 1991 | if (work_done < budget) { |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 1992 | napi_complete(napi); |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 1993 | if (adapter->rx_itr_setting & 1) |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1994 | ixgbe_set_itr_msix(q_vector); |
| 1995 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 1996 | ixgbe_irq_enable_queues(adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 1997 | ((u64)1 << q_vector->v_idx)); |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 1998 | return 0; |
| 1999 | } |
| 2000 | |
| 2001 | return work_done; |
| 2002 | } |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 2003 | |
| 2004 | /** |
| 2005 | * ixgbe_clean_txonly - msix (aka one shot) tx clean routine |
| 2006 | * @napi: napi struct with our devices info in it |
| 2007 | * @budget: amount of work driver is allowed to do this pass, in packets |
| 2008 | * |
| 2009 | * This function is optimized for cleaning one queue only on a single |
| 2010 | * q_vector!!! |
| 2011 | **/ |
| 2012 | static int ixgbe_clean_txonly(struct napi_struct *napi, int budget) |
| 2013 | { |
| 2014 | struct ixgbe_q_vector *q_vector = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2015 | container_of(napi, struct ixgbe_q_vector, napi); |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 2016 | struct ixgbe_adapter *adapter = q_vector->adapter; |
| 2017 | struct ixgbe_ring *tx_ring = NULL; |
| 2018 | int work_done = 0; |
| 2019 | long r_idx; |
| 2020 | |
| 2021 | r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 2022 | tx_ring = adapter->tx_ring[r_idx]; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 2023 | #ifdef CONFIG_IXGBE_DCA |
| 2024 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
| 2025 | ixgbe_update_tx_dca(adapter, tx_ring); |
| 2026 | #endif |
| 2027 | |
| 2028 | if (!ixgbe_clean_tx_irq(q_vector, tx_ring)) |
| 2029 | work_done = budget; |
| 2030 | |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 2031 | /* If all Tx work done, exit the polling mode */ |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 2032 | if (work_done < budget) { |
| 2033 | napi_complete(napi); |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 2034 | if (adapter->tx_itr_setting & 1) |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 2035 | ixgbe_set_itr_msix(q_vector); |
| 2036 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2037 | ixgbe_irq_enable_queues(adapter, |
| 2038 | ((u64)1 << q_vector->v_idx)); |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 2039 | } |
| 2040 | |
| 2041 | return work_done; |
| 2042 | } |
| 2043 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2044 | static inline void map_vector_to_rxq(struct ixgbe_adapter *a, int v_idx, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2045 | int r_idx) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2046 | { |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 2047 | struct ixgbe_q_vector *q_vector = a->q_vector[v_idx]; |
| 2048 | |
| 2049 | set_bit(r_idx, q_vector->rxr_idx); |
| 2050 | q_vector->rxr_count++; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2051 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2052 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2053 | static inline void map_vector_to_txq(struct ixgbe_adapter *a, int v_idx, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2054 | int t_idx) |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2055 | { |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 2056 | struct ixgbe_q_vector *q_vector = a->q_vector[v_idx]; |
| 2057 | |
| 2058 | set_bit(t_idx, q_vector->txr_idx); |
| 2059 | q_vector->txr_count++; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2060 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2061 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2062 | /** |
| 2063 | * ixgbe_map_rings_to_vectors - Maps descriptor rings to vectors |
| 2064 | * @adapter: board private structure to initialize |
| 2065 | * @vectors: allotted vector count for descriptor rings |
| 2066 | * |
| 2067 | * This function maps descriptor rings to the queue-specific vectors |
| 2068 | * we were allotted through the MSI-X enabling code. Ideally, we'd have |
| 2069 | * one vector per ring/queue, but on a constrained vector budget, we |
| 2070 | * group the rings as "efficiently" as possible. You would add new |
| 2071 | * mapping configurations in here. |
| 2072 | **/ |
| 2073 | static int ixgbe_map_rings_to_vectors(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2074 | int vectors) |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2075 | { |
| 2076 | int v_start = 0; |
| 2077 | int rxr_idx = 0, txr_idx = 0; |
| 2078 | int rxr_remaining = adapter->num_rx_queues; |
| 2079 | int txr_remaining = adapter->num_tx_queues; |
| 2080 | int i, j; |
| 2081 | int rqpv, tqpv; |
| 2082 | int err = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2083 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2084 | /* No mapping required if MSI-X is disabled. */ |
| 2085 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2086 | goto out; |
| 2087 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2088 | /* |
| 2089 | * The ideal configuration... |
| 2090 | * We have enough vectors to map one per queue. |
| 2091 | */ |
| 2092 | if (vectors == adapter->num_rx_queues + adapter->num_tx_queues) { |
| 2093 | for (; rxr_idx < rxr_remaining; v_start++, rxr_idx++) |
| 2094 | map_vector_to_rxq(adapter, v_start, rxr_idx); |
| 2095 | |
| 2096 | for (; txr_idx < txr_remaining; v_start++, txr_idx++) |
| 2097 | map_vector_to_txq(adapter, v_start, txr_idx); |
| 2098 | |
| 2099 | goto out; |
| 2100 | } |
| 2101 | |
| 2102 | /* |
| 2103 | * If we don't have enough vectors for a 1-to-1 |
| 2104 | * mapping, we'll have to group them so there are |
| 2105 | * multiple queues per vector. |
| 2106 | */ |
| 2107 | /* Re-adjusting *qpv takes care of the remainder. */ |
| 2108 | for (i = v_start; i < vectors; i++) { |
| 2109 | rqpv = DIV_ROUND_UP(rxr_remaining, vectors - i); |
| 2110 | for (j = 0; j < rqpv; j++) { |
| 2111 | map_vector_to_rxq(adapter, i, rxr_idx); |
| 2112 | rxr_idx++; |
| 2113 | rxr_remaining--; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2114 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2115 | } |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2116 | for (i = v_start; i < vectors; i++) { |
| 2117 | tqpv = DIV_ROUND_UP(txr_remaining, vectors - i); |
| 2118 | for (j = 0; j < tqpv; j++) { |
| 2119 | map_vector_to_txq(adapter, i, txr_idx); |
| 2120 | txr_idx++; |
| 2121 | txr_remaining--; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2122 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2123 | } |
| 2124 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2125 | out: |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2126 | return err; |
| 2127 | } |
| 2128 | |
| 2129 | /** |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2130 | * ixgbe_request_msix_irqs - Initialize MSI-X interrupts |
| 2131 | * @adapter: board private structure |
| 2132 | * |
| 2133 | * ixgbe_request_msix_irqs allocates MSI-X vectors and requests |
| 2134 | * interrupts from the kernel. |
| 2135 | **/ |
| 2136 | static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter) |
| 2137 | { |
| 2138 | struct net_device *netdev = adapter->netdev; |
| 2139 | irqreturn_t (*handler)(int, void *); |
| 2140 | int i, vector, q_vectors, err; |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2141 | int ri = 0, ti = 0; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2142 | |
| 2143 | /* Decrement for Other and TCP Timer vectors */ |
| 2144 | q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
| 2145 | |
| 2146 | /* Map the Tx/Rx rings to the vectors we were allotted. */ |
| 2147 | err = ixgbe_map_rings_to_vectors(adapter, q_vectors); |
| 2148 | if (err) |
| 2149 | goto out; |
| 2150 | |
| 2151 | #define SET_HANDLER(_v) ((!(_v)->rxr_count) ? &ixgbe_msix_clean_tx : \ |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2152 | (!(_v)->txr_count) ? &ixgbe_msix_clean_rx : \ |
| 2153 | &ixgbe_msix_clean_many) |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2154 | for (vector = 0; vector < q_vectors; vector++) { |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 2155 | handler = SET_HANDLER(adapter->q_vector[vector]); |
Robert Olsson | cb13fc2 | 2008-11-25 16:43:52 -0800 | [diff] [blame] | 2156 | |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2157 | if (handler == &ixgbe_msix_clean_rx) { |
Robert Olsson | cb13fc2 | 2008-11-25 16:43:52 -0800 | [diff] [blame] | 2158 | sprintf(adapter->name[vector], "%s-%s-%d", |
| 2159 | netdev->name, "rx", ri++); |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2160 | } else if (handler == &ixgbe_msix_clean_tx) { |
Robert Olsson | cb13fc2 | 2008-11-25 16:43:52 -0800 | [diff] [blame] | 2161 | sprintf(adapter->name[vector], "%s-%s-%d", |
| 2162 | netdev->name, "tx", ti++); |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2163 | } else |
Robert Olsson | cb13fc2 | 2008-11-25 16:43:52 -0800 | [diff] [blame] | 2164 | sprintf(adapter->name[vector], "%s-%s-%d", |
| 2165 | netdev->name, "TxRx", vector); |
| 2166 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2167 | err = request_irq(adapter->msix_entries[vector].vector, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2168 | handler, 0, adapter->name[vector], |
| 2169 | adapter->q_vector[vector]); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2170 | if (err) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 2171 | e_err(probe, "request_irq failed for MSIX interrupt " |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 2172 | "Error: %d\n", err); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2173 | goto free_queue_irqs; |
| 2174 | } |
| 2175 | } |
| 2176 | |
| 2177 | sprintf(adapter->name[vector], "%s:lsc", netdev->name); |
| 2178 | err = request_irq(adapter->msix_entries[vector].vector, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2179 | ixgbe_msix_lsc, 0, adapter->name[vector], netdev); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2180 | if (err) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 2181 | e_err(probe, "request_irq for msix_lsc failed: %d\n", err); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2182 | goto free_queue_irqs; |
| 2183 | } |
| 2184 | |
| 2185 | return 0; |
| 2186 | |
| 2187 | free_queue_irqs: |
| 2188 | for (i = vector - 1; i >= 0; i--) |
| 2189 | free_irq(adapter->msix_entries[--vector].vector, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2190 | adapter->q_vector[i]); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2191 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; |
| 2192 | pci_disable_msix(adapter->pdev); |
| 2193 | kfree(adapter->msix_entries); |
| 2194 | adapter->msix_entries = NULL; |
| 2195 | out: |
| 2196 | return err; |
| 2197 | } |
| 2198 | |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 2199 | static void ixgbe_set_itr(struct ixgbe_adapter *adapter) |
| 2200 | { |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 2201 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 2202 | u8 current_itr; |
| 2203 | u32 new_itr = q_vector->eitr; |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 2204 | struct ixgbe_ring *rx_ring = adapter->rx_ring[0]; |
| 2205 | struct ixgbe_ring *tx_ring = adapter->tx_ring[0]; |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 2206 | |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 2207 | q_vector->tx_itr = ixgbe_update_itr(adapter, new_itr, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2208 | q_vector->tx_itr, |
| 2209 | tx_ring->total_packets, |
| 2210 | tx_ring->total_bytes); |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 2211 | q_vector->rx_itr = ixgbe_update_itr(adapter, new_itr, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2212 | q_vector->rx_itr, |
| 2213 | rx_ring->total_packets, |
| 2214 | rx_ring->total_bytes); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 2215 | |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 2216 | current_itr = max(q_vector->rx_itr, q_vector->tx_itr); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 2217 | |
| 2218 | switch (current_itr) { |
| 2219 | /* counts and packets in update_itr are dependent on these numbers */ |
| 2220 | case lowest_latency: |
| 2221 | new_itr = 100000; |
| 2222 | break; |
| 2223 | case low_latency: |
| 2224 | new_itr = 20000; /* aka hwitr = ~200 */ |
| 2225 | break; |
| 2226 | case bulk_latency: |
| 2227 | new_itr = 8000; |
| 2228 | break; |
| 2229 | default: |
| 2230 | break; |
| 2231 | } |
| 2232 | |
| 2233 | if (new_itr != q_vector->eitr) { |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 2234 | /* do an exponential smoothing */ |
| 2235 | new_itr = ((q_vector->eitr * 90)/100) + ((new_itr * 10)/100); |
Jesse Brandeburg | 509ee93 | 2009-03-13 22:13:28 +0000 | [diff] [blame] | 2236 | |
| 2237 | /* save the algorithm value here, not the smoothed one */ |
| 2238 | q_vector->eitr = new_itr; |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 2239 | |
| 2240 | ixgbe_write_eitr(q_vector); |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 2241 | } |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 2242 | } |
| 2243 | |
Alexey Dobriyan | 79aefa4 | 2008-11-19 14:17:02 -0800 | [diff] [blame] | 2244 | /** |
Alexey Dobriyan | 79aefa4 | 2008-11-19 14:17:02 -0800 | [diff] [blame] | 2245 | * ixgbe_irq_enable - Enable default interrupt generation settings |
| 2246 | * @adapter: board private structure |
| 2247 | **/ |
Emil Tantilov | 6af3b9e | 2010-09-29 21:35:23 +0000 | [diff] [blame] | 2248 | static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter, bool queues, |
| 2249 | bool flush) |
Alexey Dobriyan | 79aefa4 | 2008-11-19 14:17:02 -0800 | [diff] [blame] | 2250 | { |
| 2251 | u32 mask; |
Nelson, Shannon | 835462f | 2009-04-27 22:42:54 +0000 | [diff] [blame] | 2252 | |
| 2253 | mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE); |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 2254 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) |
| 2255 | mask |= IXGBE_EIMS_GPI_SDP0; |
David S. Miller | 6ab33d5 | 2008-11-20 16:44:00 -0800 | [diff] [blame] | 2256 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) |
| 2257 | mask |= IXGBE_EIMS_GPI_SDP1; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 2258 | if (adapter->hw.mac.type == ixgbe_mac_82599EB) { |
Jesse Brandeburg | 2a41ff8 | 2009-03-13 22:14:30 +0000 | [diff] [blame] | 2259 | mask |= IXGBE_EIMS_ECC; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 2260 | mask |= IXGBE_EIMS_GPI_SDP1; |
| 2261 | mask |= IXGBE_EIMS_GPI_SDP2; |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 2262 | if (adapter->num_vfs) |
| 2263 | mask |= IXGBE_EIMS_MAILBOX; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 2264 | } |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 2265 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || |
| 2266 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) |
| 2267 | mask |= IXGBE_EIMS_FLOW_DIR; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 2268 | |
Alexey Dobriyan | 79aefa4 | 2008-11-19 14:17:02 -0800 | [diff] [blame] | 2269 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask); |
Emil Tantilov | 6af3b9e | 2010-09-29 21:35:23 +0000 | [diff] [blame] | 2270 | if (queues) |
| 2271 | ixgbe_irq_enable_queues(adapter, ~0); |
| 2272 | if (flush) |
| 2273 | IXGBE_WRITE_FLUSH(&adapter->hw); |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 2274 | |
| 2275 | if (adapter->num_vfs > 32) { |
| 2276 | u32 eitrsel = (1 << (adapter->num_vfs - 32)) - 1; |
| 2277 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, eitrsel); |
| 2278 | } |
Alexey Dobriyan | 79aefa4 | 2008-11-19 14:17:02 -0800 | [diff] [blame] | 2279 | } |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2280 | |
| 2281 | /** |
| 2282 | * ixgbe_intr - legacy mode Interrupt Handler |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2283 | * @irq: interrupt number |
| 2284 | * @data: pointer to a network interface device structure |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2285 | **/ |
| 2286 | static irqreturn_t ixgbe_intr(int irq, void *data) |
| 2287 | { |
| 2288 | struct net_device *netdev = data; |
| 2289 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 2290 | struct ixgbe_hw *hw = &adapter->hw; |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 2291 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2292 | u32 eicr; |
| 2293 | |
Don Skidmore | 5403750 | 2009-02-21 15:42:56 -0800 | [diff] [blame] | 2294 | /* |
Emil Tantilov | 6af3b9e | 2010-09-29 21:35:23 +0000 | [diff] [blame] | 2295 | * Workaround for silicon errata on 82598. Mask the interrupts |
Don Skidmore | 5403750 | 2009-02-21 15:42:56 -0800 | [diff] [blame] | 2296 | * before the read of EICR. |
| 2297 | */ |
| 2298 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK); |
| 2299 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2300 | /* for NAPI, using EIAM to auto-mask tx/rx interrupt bits on read |
| 2301 | * therefore no explict interrupt disable is necessary */ |
| 2302 | eicr = IXGBE_READ_REG(hw, IXGBE_EICR); |
Jesse Brandeburg | f47cf66 | 2008-09-11 19:56:14 -0700 | [diff] [blame] | 2303 | if (!eicr) { |
Emil Tantilov | 6af3b9e | 2010-09-29 21:35:23 +0000 | [diff] [blame] | 2304 | /* |
| 2305 | * shared interrupt alert! |
Jesse Brandeburg | f47cf66 | 2008-09-11 19:56:14 -0700 | [diff] [blame] | 2306 | * make sure interrupts are enabled because the read will |
Emil Tantilov | 6af3b9e | 2010-09-29 21:35:23 +0000 | [diff] [blame] | 2307 | * have disabled interrupts due to EIAM |
| 2308 | * finish the workaround of silicon errata on 82598. Unmask |
| 2309 | * the interrupt that we masked before the EICR read. |
| 2310 | */ |
| 2311 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
| 2312 | ixgbe_irq_enable(adapter, true, true); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2313 | return IRQ_NONE; /* Not our interrupt */ |
Jesse Brandeburg | f47cf66 | 2008-09-11 19:56:14 -0700 | [diff] [blame] | 2314 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2315 | |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 2316 | if (eicr & IXGBE_EICR_LSC) |
| 2317 | ixgbe_check_lsc(adapter); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2318 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 2319 | if (hw->mac.type == ixgbe_mac_82599EB) |
| 2320 | ixgbe_check_sfp_event(adapter, eicr); |
| 2321 | |
Jesse Brandeburg | 0befdb3 | 2008-10-31 00:46:40 -0700 | [diff] [blame] | 2322 | ixgbe_check_fan_failure(adapter, eicr); |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 2323 | if ((adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) && |
| 2324 | ((eicr & IXGBE_EICR_GPI_SDP0) || (eicr & IXGBE_EICR_LSC))) |
| 2325 | schedule_work(&adapter->check_overtemp_task); |
Jesse Brandeburg | 0befdb3 | 2008-10-31 00:46:40 -0700 | [diff] [blame] | 2326 | |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 2327 | if (napi_schedule_prep(&(q_vector->napi))) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 2328 | adapter->tx_ring[0]->total_packets = 0; |
| 2329 | adapter->tx_ring[0]->total_bytes = 0; |
| 2330 | adapter->rx_ring[0]->total_packets = 0; |
| 2331 | adapter->rx_ring[0]->total_bytes = 0; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2332 | /* would disable interrupts here but EIAM disabled it */ |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 2333 | __napi_schedule(&(q_vector->napi)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2334 | } |
| 2335 | |
Emil Tantilov | 6af3b9e | 2010-09-29 21:35:23 +0000 | [diff] [blame] | 2336 | /* |
| 2337 | * re-enable link(maybe) and non-queue interrupts, no flush. |
| 2338 | * ixgbe_poll will re-enable the queue interrupts |
| 2339 | */ |
| 2340 | |
| 2341 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
| 2342 | ixgbe_irq_enable(adapter, false, false); |
| 2343 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2344 | return IRQ_HANDLED; |
| 2345 | } |
| 2346 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2347 | static inline void ixgbe_reset_q_vectors(struct ixgbe_adapter *adapter) |
| 2348 | { |
| 2349 | int i, q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
| 2350 | |
| 2351 | for (i = 0; i < q_vectors; i++) { |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 2352 | struct ixgbe_q_vector *q_vector = adapter->q_vector[i]; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2353 | bitmap_zero(q_vector->rxr_idx, MAX_RX_QUEUES); |
| 2354 | bitmap_zero(q_vector->txr_idx, MAX_TX_QUEUES); |
| 2355 | q_vector->rxr_count = 0; |
| 2356 | q_vector->txr_count = 0; |
| 2357 | } |
| 2358 | } |
| 2359 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2360 | /** |
| 2361 | * ixgbe_request_irq - initialize interrupts |
| 2362 | * @adapter: board private structure |
| 2363 | * |
| 2364 | * Attempts to configure interrupts using the best available |
| 2365 | * capabilities of the hardware and kernel. |
| 2366 | **/ |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2367 | static int ixgbe_request_irq(struct ixgbe_adapter *adapter) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2368 | { |
| 2369 | struct net_device *netdev = adapter->netdev; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2370 | int err; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2371 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2372 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
| 2373 | err = ixgbe_request_msix_irqs(adapter); |
| 2374 | } else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) { |
Joe Perches | a0607fd | 2009-11-18 23:29:17 -0800 | [diff] [blame] | 2375 | err = request_irq(adapter->pdev->irq, ixgbe_intr, 0, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2376 | netdev->name, netdev); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2377 | } else { |
Joe Perches | a0607fd | 2009-11-18 23:29:17 -0800 | [diff] [blame] | 2378 | err = request_irq(adapter->pdev->irq, ixgbe_intr, IRQF_SHARED, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2379 | netdev->name, netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2380 | } |
| 2381 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2382 | if (err) |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 2383 | e_err(probe, "request_irq failed, Error %d\n", err); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2384 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2385 | return err; |
| 2386 | } |
| 2387 | |
| 2388 | static void ixgbe_free_irq(struct ixgbe_adapter *adapter) |
| 2389 | { |
| 2390 | struct net_device *netdev = adapter->netdev; |
| 2391 | |
| 2392 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2393 | int i, q_vectors; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2394 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2395 | q_vectors = adapter->num_msix_vectors; |
| 2396 | |
| 2397 | i = q_vectors - 1; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2398 | free_irq(adapter->msix_entries[i].vector, netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2399 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2400 | i--; |
| 2401 | for (; i >= 0; i--) { |
| 2402 | free_irq(adapter->msix_entries[i].vector, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2403 | adapter->q_vector[i]); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2404 | } |
| 2405 | |
| 2406 | ixgbe_reset_q_vectors(adapter); |
| 2407 | } else { |
| 2408 | free_irq(adapter->pdev->irq, netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2409 | } |
| 2410 | } |
| 2411 | |
| 2412 | /** |
Jesse Brandeburg | 22d5a71 | 2009-03-19 01:24:04 +0000 | [diff] [blame] | 2413 | * ixgbe_irq_disable - Mask off interrupt generation on the NIC |
| 2414 | * @adapter: board private structure |
| 2415 | **/ |
| 2416 | static inline void ixgbe_irq_disable(struct ixgbe_adapter *adapter) |
| 2417 | { |
Nelson, Shannon | 835462f | 2009-04-27 22:42:54 +0000 | [diff] [blame] | 2418 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
| 2419 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, ~0); |
| 2420 | } else { |
| 2421 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFF0000); |
| 2422 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(0), ~0); |
Jesse Brandeburg | 22d5a71 | 2009-03-19 01:24:04 +0000 | [diff] [blame] | 2423 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), ~0); |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 2424 | if (adapter->num_vfs > 32) |
| 2425 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, 0); |
Jesse Brandeburg | 22d5a71 | 2009-03-19 01:24:04 +0000 | [diff] [blame] | 2426 | } |
| 2427 | IXGBE_WRITE_FLUSH(&adapter->hw); |
| 2428 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
| 2429 | int i; |
| 2430 | for (i = 0; i < adapter->num_msix_vectors; i++) |
| 2431 | synchronize_irq(adapter->msix_entries[i].vector); |
| 2432 | } else { |
| 2433 | synchronize_irq(adapter->pdev->irq); |
| 2434 | } |
| 2435 | } |
| 2436 | |
Jesse Brandeburg | 22d5a71 | 2009-03-19 01:24:04 +0000 | [diff] [blame] | 2437 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2438 | * ixgbe_configure_msi_and_legacy - Initialize PIN (INTA...) and MSI interrupts |
| 2439 | * |
| 2440 | **/ |
| 2441 | static void ixgbe_configure_msi_and_legacy(struct ixgbe_adapter *adapter) |
| 2442 | { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2443 | struct ixgbe_hw *hw = &adapter->hw; |
| 2444 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2445 | IXGBE_WRITE_REG(hw, IXGBE_EITR(0), |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2446 | EITR_INTS_PER_SEC_TO_REG(adapter->rx_eitr_param)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2447 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 2448 | ixgbe_set_ivar(adapter, 0, 0, 0); |
| 2449 | ixgbe_set_ivar(adapter, 1, 0, 0); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 2450 | |
| 2451 | map_vector_to_rxq(adapter, 0, 0); |
| 2452 | map_vector_to_txq(adapter, 0, 0); |
| 2453 | |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 2454 | e_info(hw, "Legacy interrupt IVAR setup done\n"); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2455 | } |
| 2456 | |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2457 | /** |
| 2458 | * ixgbe_configure_tx_ring - Configure 8259x Tx ring after Reset |
| 2459 | * @adapter: board private structure |
| 2460 | * @ring: structure containing ring specific data |
| 2461 | * |
| 2462 | * Configure the Tx descriptor ring after a reset. |
| 2463 | **/ |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 2464 | void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter, |
| 2465 | struct ixgbe_ring *ring) |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2466 | { |
| 2467 | struct ixgbe_hw *hw = &adapter->hw; |
| 2468 | u64 tdba = ring->dma; |
Alexander Duyck | 2f1860b | 2010-08-19 13:39:43 +0000 | [diff] [blame] | 2469 | int wait_loop = 10; |
| 2470 | u32 txdctl; |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2471 | u16 reg_idx = ring->reg_idx; |
| 2472 | |
Alexander Duyck | 2f1860b | 2010-08-19 13:39:43 +0000 | [diff] [blame] | 2473 | /* disable queue to avoid issues while updating state */ |
| 2474 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(reg_idx)); |
| 2475 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), |
| 2476 | txdctl & ~IXGBE_TXDCTL_ENABLE); |
| 2477 | IXGBE_WRITE_FLUSH(hw); |
| 2478 | |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2479 | IXGBE_WRITE_REG(hw, IXGBE_TDBAL(reg_idx), |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2480 | (tdba & DMA_BIT_MASK(32))); |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2481 | IXGBE_WRITE_REG(hw, IXGBE_TDBAH(reg_idx), (tdba >> 32)); |
| 2482 | IXGBE_WRITE_REG(hw, IXGBE_TDLEN(reg_idx), |
| 2483 | ring->count * sizeof(union ixgbe_adv_tx_desc)); |
| 2484 | IXGBE_WRITE_REG(hw, IXGBE_TDH(reg_idx), 0); |
| 2485 | IXGBE_WRITE_REG(hw, IXGBE_TDT(reg_idx), 0); |
| 2486 | ring->head = IXGBE_TDH(reg_idx); |
| 2487 | ring->tail = IXGBE_TDT(reg_idx); |
| 2488 | |
Alexander Duyck | 2f1860b | 2010-08-19 13:39:43 +0000 | [diff] [blame] | 2489 | /* configure fetching thresholds */ |
| 2490 | if (adapter->rx_itr_setting == 0) { |
| 2491 | /* cannot set wthresh when itr==0 */ |
| 2492 | txdctl &= ~0x007F0000; |
| 2493 | } else { |
| 2494 | /* enable WTHRESH=8 descriptors, to encourage burst writeback */ |
| 2495 | txdctl |= (8 << 16); |
| 2496 | } |
| 2497 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
| 2498 | /* PThresh workaround for Tx hang with DFP enabled. */ |
| 2499 | txdctl |= 32; |
| 2500 | } |
| 2501 | |
| 2502 | /* reinitialize flowdirector state */ |
| 2503 | set_bit(__IXGBE_FDIR_INIT_DONE, &ring->reinit_state); |
| 2504 | |
| 2505 | /* enable queue */ |
| 2506 | txdctl |= IXGBE_TXDCTL_ENABLE; |
| 2507 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), txdctl); |
| 2508 | |
| 2509 | /* TXDCTL.EN will return 0 on 82598 if link is down, so skip it */ |
| 2510 | if (hw->mac.type == ixgbe_mac_82598EB && |
| 2511 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) |
| 2512 | return; |
| 2513 | |
| 2514 | /* poll to verify queue is enabled */ |
| 2515 | do { |
| 2516 | msleep(1); |
| 2517 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(reg_idx)); |
| 2518 | } while (--wait_loop && !(txdctl & IXGBE_TXDCTL_ENABLE)); |
| 2519 | if (!wait_loop) |
| 2520 | e_err(drv, "Could not enable Tx Queue %d\n", reg_idx); |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2521 | } |
| 2522 | |
Alexander Duyck | 120ff94 | 2010-08-19 13:34:50 +0000 | [diff] [blame] | 2523 | static void ixgbe_setup_mtqc(struct ixgbe_adapter *adapter) |
| 2524 | { |
| 2525 | struct ixgbe_hw *hw = &adapter->hw; |
| 2526 | u32 rttdcs; |
| 2527 | u32 mask; |
| 2528 | |
| 2529 | if (hw->mac.type == ixgbe_mac_82598EB) |
| 2530 | return; |
| 2531 | |
| 2532 | /* disable the arbiter while setting MTQC */ |
| 2533 | rttdcs = IXGBE_READ_REG(hw, IXGBE_RTTDCS); |
| 2534 | rttdcs |= IXGBE_RTTDCS_ARBDIS; |
| 2535 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); |
| 2536 | |
| 2537 | /* set transmit pool layout */ |
| 2538 | mask = (IXGBE_FLAG_SRIOV_ENABLED | IXGBE_FLAG_DCB_ENABLED); |
| 2539 | switch (adapter->flags & mask) { |
| 2540 | |
| 2541 | case (IXGBE_FLAG_SRIOV_ENABLED): |
| 2542 | IXGBE_WRITE_REG(hw, IXGBE_MTQC, |
| 2543 | (IXGBE_MTQC_VT_ENA | IXGBE_MTQC_64VF)); |
| 2544 | break; |
| 2545 | |
| 2546 | case (IXGBE_FLAG_DCB_ENABLED): |
| 2547 | /* We enable 8 traffic classes, DCB only */ |
| 2548 | IXGBE_WRITE_REG(hw, IXGBE_MTQC, |
| 2549 | (IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ)); |
| 2550 | break; |
| 2551 | |
| 2552 | default: |
| 2553 | IXGBE_WRITE_REG(hw, IXGBE_MTQC, IXGBE_MTQC_64Q_1PB); |
| 2554 | break; |
| 2555 | } |
| 2556 | |
| 2557 | /* re-enable the arbiter */ |
| 2558 | rttdcs &= ~IXGBE_RTTDCS_ARBDIS; |
| 2559 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); |
| 2560 | } |
| 2561 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2562 | /** |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 2563 | * ixgbe_configure_tx - Configure 8259x Transmit Unit after Reset |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2564 | * @adapter: board private structure |
| 2565 | * |
| 2566 | * Configure the Tx unit of the MAC after a reset. |
| 2567 | **/ |
| 2568 | static void ixgbe_configure_tx(struct ixgbe_adapter *adapter) |
| 2569 | { |
Alexander Duyck | 2f1860b | 2010-08-19 13:39:43 +0000 | [diff] [blame] | 2570 | struct ixgbe_hw *hw = &adapter->hw; |
| 2571 | u32 dmatxctl; |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2572 | u32 i; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2573 | |
Alexander Duyck | 2f1860b | 2010-08-19 13:39:43 +0000 | [diff] [blame] | 2574 | ixgbe_setup_mtqc(adapter); |
| 2575 | |
| 2576 | if (hw->mac.type != ixgbe_mac_82598EB) { |
| 2577 | /* DMATXCTL.EN must be before Tx queues are enabled */ |
| 2578 | dmatxctl = IXGBE_READ_REG(hw, IXGBE_DMATXCTL); |
| 2579 | dmatxctl |= IXGBE_DMATXCTL_TE; |
| 2580 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, dmatxctl); |
| 2581 | } |
| 2582 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2583 | /* Setup the HW Tx Head and Tail descriptor pointers */ |
Alexander Duyck | 43e69bf | 2010-08-19 13:35:12 +0000 | [diff] [blame] | 2584 | for (i = 0; i < adapter->num_tx_queues; i++) |
| 2585 | ixgbe_configure_tx_ring(adapter, adapter->tx_ring[i]); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2586 | } |
| 2587 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 2588 | #define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2 |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2589 | |
Yi Zou | a6616b4 | 2009-08-06 13:05:23 +0000 | [diff] [blame] | 2590 | static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2591 | struct ixgbe_ring *rx_ring) |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2592 | { |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2593 | u32 srrctl; |
Yi Zou | a6616b4 | 2009-08-06 13:05:23 +0000 | [diff] [blame] | 2594 | int index; |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2595 | struct ixgbe_ring_feature *feature = adapter->ring_feature; |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2596 | |
Yi Zou | a6616b4 | 2009-08-06 13:05:23 +0000 | [diff] [blame] | 2597 | index = rx_ring->reg_idx; |
| 2598 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
| 2599 | unsigned long mask; |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2600 | mask = (unsigned long) feature[RING_F_RSS].mask; |
Alexander Duyck | 3be1adf | 2008-08-30 00:29:10 -0700 | [diff] [blame] | 2601 | index = index & mask; |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2602 | } |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2603 | srrctl = IXGBE_READ_REG(&adapter->hw, IXGBE_SRRCTL(index)); |
| 2604 | |
| 2605 | srrctl &= ~IXGBE_SRRCTL_BSIZEHDR_MASK; |
| 2606 | srrctl &= ~IXGBE_SRRCTL_BSIZEPKT_MASK; |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 2607 | if (adapter->num_vfs) |
| 2608 | srrctl |= IXGBE_SRRCTL_DROP_EN; |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2609 | |
Alexander Duyck | afafd5b | 2009-05-07 10:38:56 +0000 | [diff] [blame] | 2610 | srrctl |= (IXGBE_RX_HDR_SIZE << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT) & |
| 2611 | IXGBE_SRRCTL_BSIZEHDR_MASK; |
| 2612 | |
Yi Zou | 6e455b89 | 2009-08-06 13:05:44 +0000 | [diff] [blame] | 2613 | if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED) { |
Alexander Duyck | afafd5b | 2009-05-07 10:38:56 +0000 | [diff] [blame] | 2614 | #if (PAGE_SIZE / 2) > IXGBE_MAX_RXBUFFER |
| 2615 | srrctl |= IXGBE_MAX_RXBUFFER >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; |
| 2616 | #else |
| 2617 | srrctl |= (PAGE_SIZE / 2) >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; |
| 2618 | #endif |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2619 | srrctl |= IXGBE_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS; |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2620 | } else { |
Alexander Duyck | afafd5b | 2009-05-07 10:38:56 +0000 | [diff] [blame] | 2621 | srrctl |= ALIGN(rx_ring->rx_buf_len, 1024) >> |
| 2622 | IXGBE_SRRCTL_BSIZEPKT_SHIFT; |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2623 | srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF; |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2624 | } |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 2625 | |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2626 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_SRRCTL(index), srrctl); |
| 2627 | } |
| 2628 | |
Alexander Duyck | 05abb12 | 2010-08-19 13:35:41 +0000 | [diff] [blame] | 2629 | static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter) |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2630 | { |
Alexander Duyck | 05abb12 | 2010-08-19 13:35:41 +0000 | [diff] [blame] | 2631 | struct ixgbe_hw *hw = &adapter->hw; |
| 2632 | static const u32 seed[10] = { 0xE291D73D, 0x1805EC6C, 0x2A94B30D, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2633 | 0xA54F2BEC, 0xEA49AF7C, 0xE214AD3D, 0xB855AABE, |
| 2634 | 0x6A3E67EA, 0x14364D17, 0x3BED200D}; |
Alexander Duyck | 05abb12 | 2010-08-19 13:35:41 +0000 | [diff] [blame] | 2635 | u32 mrqc = 0, reta = 0; |
| 2636 | u32 rxcsum; |
| 2637 | int i, j; |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2638 | int mask; |
| 2639 | |
Alexander Duyck | 05abb12 | 2010-08-19 13:35:41 +0000 | [diff] [blame] | 2640 | /* Fill out hash function seeds */ |
| 2641 | for (i = 0; i < 10; i++) |
| 2642 | IXGBE_WRITE_REG(hw, IXGBE_RSSRK(i), seed[i]); |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2643 | |
Alexander Duyck | 05abb12 | 2010-08-19 13:35:41 +0000 | [diff] [blame] | 2644 | /* Fill out redirection table */ |
| 2645 | for (i = 0, j = 0; i < 128; i++, j++) { |
| 2646 | if (j == adapter->ring_feature[RING_F_RSS].indices) |
| 2647 | j = 0; |
| 2648 | /* reta = 4-byte sliding window of |
| 2649 | * 0x00..(indices-1)(indices-1)00..etc. */ |
| 2650 | reta = (reta << 8) | (j * 0x11); |
| 2651 | if ((i & 3) == 3) |
| 2652 | IXGBE_WRITE_REG(hw, IXGBE_RETA(i >> 2), reta); |
| 2653 | } |
| 2654 | |
| 2655 | /* Disable indicating checksum in descriptor, enables RSS hash */ |
| 2656 | rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM); |
| 2657 | rxcsum |= IXGBE_RXCSUM_PCSD; |
| 2658 | IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum); |
| 2659 | |
| 2660 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) |
| 2661 | mask = adapter->flags & IXGBE_FLAG_RSS_ENABLED; |
| 2662 | else |
| 2663 | mask = adapter->flags & (IXGBE_FLAG_RSS_ENABLED |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2664 | #ifdef CONFIG_IXGBE_DCB |
Alexander Duyck | 05abb12 | 2010-08-19 13:35:41 +0000 | [diff] [blame] | 2665 | | IXGBE_FLAG_DCB_ENABLED |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2666 | #endif |
Alexander Duyck | 05abb12 | 2010-08-19 13:35:41 +0000 | [diff] [blame] | 2667 | | IXGBE_FLAG_SRIOV_ENABLED |
| 2668 | ); |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2669 | |
| 2670 | switch (mask) { |
| 2671 | case (IXGBE_FLAG_RSS_ENABLED): |
| 2672 | mrqc = IXGBE_MRQC_RSSEN; |
| 2673 | break; |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 2674 | case (IXGBE_FLAG_SRIOV_ENABLED): |
| 2675 | mrqc = IXGBE_MRQC_VMDQEN; |
| 2676 | break; |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2677 | #ifdef CONFIG_IXGBE_DCB |
| 2678 | case (IXGBE_FLAG_DCB_ENABLED): |
| 2679 | mrqc = IXGBE_MRQC_RT8TCEN; |
| 2680 | break; |
| 2681 | #endif /* CONFIG_IXGBE_DCB */ |
| 2682 | default: |
| 2683 | break; |
| 2684 | } |
| 2685 | |
Alexander Duyck | 05abb12 | 2010-08-19 13:35:41 +0000 | [diff] [blame] | 2686 | /* Perform hash on these packet types */ |
| 2687 | mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4 |
| 2688 | | IXGBE_MRQC_RSS_FIELD_IPV4_TCP |
| 2689 | | IXGBE_MRQC_RSS_FIELD_IPV6 |
| 2690 | | IXGBE_MRQC_RSS_FIELD_IPV6_TCP; |
| 2691 | |
| 2692 | IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc); |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2693 | } |
| 2694 | |
Mallikarjuna R Chilakala | 177db6f | 2008-06-18 15:32:19 -0700 | [diff] [blame] | 2695 | /** |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2696 | * ixgbe_configure_rscctl - enable RSC for the indicated ring |
| 2697 | * @adapter: address of board private structure |
| 2698 | * @index: index of ring to set |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2699 | **/ |
Alexander Duyck | 7367096 | 2010-08-19 13:38:34 +0000 | [diff] [blame] | 2700 | static void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter, |
| 2701 | struct ixgbe_ring *ring) |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2702 | { |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2703 | struct ixgbe_hw *hw = &adapter->hw; |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2704 | u32 rscctrl; |
Mallikarjuna R Chilakala | edd2ea5 | 2009-11-23 10:45:11 -0800 | [diff] [blame] | 2705 | int rx_buf_len; |
Alexander Duyck | 7367096 | 2010-08-19 13:38:34 +0000 | [diff] [blame] | 2706 | u16 reg_idx = ring->reg_idx; |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2707 | |
Alexander Duyck | 7367096 | 2010-08-19 13:38:34 +0000 | [diff] [blame] | 2708 | if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) |
| 2709 | return; |
| 2710 | |
| 2711 | rx_buf_len = ring->rx_buf_len; |
| 2712 | rscctrl = IXGBE_READ_REG(hw, IXGBE_RSCCTL(reg_idx)); |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2713 | rscctrl |= IXGBE_RSCCTL_RSCEN; |
| 2714 | /* |
| 2715 | * we must limit the number of descriptors so that the |
| 2716 | * total size of max desc * buf_len is not greater |
| 2717 | * than 65535 |
| 2718 | */ |
Alexander Duyck | 7367096 | 2010-08-19 13:38:34 +0000 | [diff] [blame] | 2719 | if (ring->flags & IXGBE_RING_RX_PS_ENABLED) { |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2720 | #if (MAX_SKB_FRAGS > 16) |
| 2721 | rscctrl |= IXGBE_RSCCTL_MAXDESC_16; |
| 2722 | #elif (MAX_SKB_FRAGS > 8) |
| 2723 | rscctrl |= IXGBE_RSCCTL_MAXDESC_8; |
| 2724 | #elif (MAX_SKB_FRAGS > 4) |
| 2725 | rscctrl |= IXGBE_RSCCTL_MAXDESC_4; |
| 2726 | #else |
| 2727 | rscctrl |= IXGBE_RSCCTL_MAXDESC_1; |
| 2728 | #endif |
| 2729 | } else { |
| 2730 | if (rx_buf_len < IXGBE_RXBUFFER_4096) |
| 2731 | rscctrl |= IXGBE_RSCCTL_MAXDESC_16; |
| 2732 | else if (rx_buf_len < IXGBE_RXBUFFER_8192) |
| 2733 | rscctrl |= IXGBE_RSCCTL_MAXDESC_8; |
| 2734 | else |
| 2735 | rscctrl |= IXGBE_RSCCTL_MAXDESC_4; |
| 2736 | } |
Alexander Duyck | 7367096 | 2010-08-19 13:38:34 +0000 | [diff] [blame] | 2737 | IXGBE_WRITE_REG(hw, IXGBE_RSCCTL(reg_idx), rscctrl); |
Nelson, Shannon | bb5a9ad | 2009-09-18 09:46:27 +0000 | [diff] [blame] | 2738 | } |
| 2739 | |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 2740 | /** |
| 2741 | * ixgbe_set_uta - Set unicast filter table address |
| 2742 | * @adapter: board private structure |
| 2743 | * |
| 2744 | * The unicast table address is a register array of 32-bit registers. |
| 2745 | * The table is meant to be used in a way similar to how the MTA is used |
| 2746 | * however due to certain limitations in the hardware it is necessary to |
| 2747 | * set all the hash bits to 1 and use the VMOLR ROPE bit as a promiscuous |
| 2748 | * enable bit to allow vlan tag stripping when promiscuous mode is enabled |
| 2749 | **/ |
| 2750 | static void ixgbe_set_uta(struct ixgbe_adapter *adapter) |
| 2751 | { |
| 2752 | struct ixgbe_hw *hw = &adapter->hw; |
| 2753 | int i; |
| 2754 | |
| 2755 | /* The UTA table only exists on 82599 hardware and newer */ |
| 2756 | if (hw->mac.type < ixgbe_mac_82599EB) |
| 2757 | return; |
| 2758 | |
| 2759 | /* we only need to do this if VMDq is enabled */ |
| 2760 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) |
| 2761 | return; |
| 2762 | |
| 2763 | for (i = 0; i < 128; i++) |
| 2764 | IXGBE_WRITE_REG(hw, IXGBE_UTA(i), ~0); |
| 2765 | } |
| 2766 | |
| 2767 | #define IXGBE_MAX_RX_DESC_POLL 10 |
| 2768 | static void ixgbe_rx_desc_queue_enable(struct ixgbe_adapter *adapter, |
| 2769 | struct ixgbe_ring *ring) |
| 2770 | { |
| 2771 | struct ixgbe_hw *hw = &adapter->hw; |
| 2772 | int reg_idx = ring->reg_idx; |
| 2773 | int wait_loop = IXGBE_MAX_RX_DESC_POLL; |
| 2774 | u32 rxdctl; |
| 2775 | |
| 2776 | /* RXDCTL.EN will return 0 on 82598 if link is down, so skip it */ |
| 2777 | if (hw->mac.type == ixgbe_mac_82598EB && |
| 2778 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) |
| 2779 | return; |
| 2780 | |
| 2781 | do { |
| 2782 | msleep(1); |
| 2783 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); |
| 2784 | } while (--wait_loop && !(rxdctl & IXGBE_RXDCTL_ENABLE)); |
| 2785 | |
| 2786 | if (!wait_loop) { |
| 2787 | e_err(drv, "RXDCTL.ENABLE on Rx queue %d not set within " |
| 2788 | "the polling period\n", reg_idx); |
| 2789 | } |
| 2790 | } |
| 2791 | |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 2792 | void ixgbe_configure_rx_ring(struct ixgbe_adapter *adapter, |
| 2793 | struct ixgbe_ring *ring) |
Alexander Duyck | acd3717 | 2010-08-19 13:36:05 +0000 | [diff] [blame] | 2794 | { |
| 2795 | struct ixgbe_hw *hw = &adapter->hw; |
| 2796 | u64 rdba = ring->dma; |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 2797 | u32 rxdctl; |
Alexander Duyck | acd3717 | 2010-08-19 13:36:05 +0000 | [diff] [blame] | 2798 | u16 reg_idx = ring->reg_idx; |
| 2799 | |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 2800 | /* disable queue to avoid issues while updating state */ |
| 2801 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); |
| 2802 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), |
| 2803 | rxdctl & ~IXGBE_RXDCTL_ENABLE); |
| 2804 | IXGBE_WRITE_FLUSH(hw); |
| 2805 | |
Alexander Duyck | acd3717 | 2010-08-19 13:36:05 +0000 | [diff] [blame] | 2806 | IXGBE_WRITE_REG(hw, IXGBE_RDBAL(reg_idx), (rdba & DMA_BIT_MASK(32))); |
| 2807 | IXGBE_WRITE_REG(hw, IXGBE_RDBAH(reg_idx), (rdba >> 32)); |
| 2808 | IXGBE_WRITE_REG(hw, IXGBE_RDLEN(reg_idx), |
| 2809 | ring->count * sizeof(union ixgbe_adv_rx_desc)); |
| 2810 | IXGBE_WRITE_REG(hw, IXGBE_RDH(reg_idx), 0); |
| 2811 | IXGBE_WRITE_REG(hw, IXGBE_RDT(reg_idx), 0); |
| 2812 | ring->head = IXGBE_RDH(reg_idx); |
| 2813 | ring->tail = IXGBE_RDT(reg_idx); |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 2814 | |
| 2815 | ixgbe_configure_srrctl(adapter, ring); |
| 2816 | ixgbe_configure_rscctl(adapter, ring); |
| 2817 | |
| 2818 | if (hw->mac.type == ixgbe_mac_82598EB) { |
| 2819 | /* |
| 2820 | * enable cache line friendly hardware writes: |
| 2821 | * PTHRESH=32 descriptors (half the internal cache), |
| 2822 | * this also removes ugly rx_no_buffer_count increment |
| 2823 | * HTHRESH=4 descriptors (to minimize latency on fetch) |
| 2824 | * WTHRESH=8 burst writeback up to two cache lines |
| 2825 | */ |
| 2826 | rxdctl &= ~0x3FFFFF; |
| 2827 | rxdctl |= 0x080420; |
| 2828 | } |
| 2829 | |
| 2830 | /* enable receive descriptor ring */ |
| 2831 | rxdctl |= IXGBE_RXDCTL_ENABLE; |
| 2832 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), rxdctl); |
| 2833 | |
| 2834 | ixgbe_rx_desc_queue_enable(adapter, ring); |
| 2835 | ixgbe_alloc_rx_buffers(adapter, ring, IXGBE_DESC_UNUSED(ring)); |
Alexander Duyck | acd3717 | 2010-08-19 13:36:05 +0000 | [diff] [blame] | 2836 | } |
| 2837 | |
Alexander Duyck | 4865452 | 2010-08-19 13:36:27 +0000 | [diff] [blame] | 2838 | static void ixgbe_setup_psrtype(struct ixgbe_adapter *adapter) |
| 2839 | { |
| 2840 | struct ixgbe_hw *hw = &adapter->hw; |
| 2841 | int p; |
| 2842 | |
| 2843 | /* PSRTYPE must be initialized in non 82598 adapters */ |
| 2844 | u32 psrtype = IXGBE_PSRTYPE_TCPHDR | |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2845 | IXGBE_PSRTYPE_UDPHDR | |
| 2846 | IXGBE_PSRTYPE_IPV4HDR | |
Alexander Duyck | 4865452 | 2010-08-19 13:36:27 +0000 | [diff] [blame] | 2847 | IXGBE_PSRTYPE_L2HDR | |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2848 | IXGBE_PSRTYPE_IPV6HDR; |
Alexander Duyck | 4865452 | 2010-08-19 13:36:27 +0000 | [diff] [blame] | 2849 | |
| 2850 | if (hw->mac.type == ixgbe_mac_82598EB) |
| 2851 | return; |
| 2852 | |
| 2853 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) |
| 2854 | psrtype |= (adapter->num_rx_queues_per_pool << 29); |
| 2855 | |
| 2856 | for (p = 0; p < adapter->num_rx_pools; p++) |
| 2857 | IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(adapter->num_vfs + p), |
| 2858 | psrtype); |
| 2859 | } |
| 2860 | |
Alexander Duyck | f5b4a52 | 2010-08-19 13:38:57 +0000 | [diff] [blame] | 2861 | static void ixgbe_configure_virtualization(struct ixgbe_adapter *adapter) |
| 2862 | { |
| 2863 | struct ixgbe_hw *hw = &adapter->hw; |
| 2864 | u32 gcr_ext; |
| 2865 | u32 vt_reg_bits; |
| 2866 | u32 reg_offset, vf_shift; |
| 2867 | u32 vmdctl; |
| 2868 | |
| 2869 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) |
| 2870 | return; |
| 2871 | |
| 2872 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); |
| 2873 | vt_reg_bits = IXGBE_VMD_CTL_VMDQ_EN | IXGBE_VT_CTL_REPLEN; |
| 2874 | vt_reg_bits |= (adapter->num_vfs << IXGBE_VT_CTL_POOL_SHIFT); |
| 2875 | IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl | vt_reg_bits); |
| 2876 | |
| 2877 | vf_shift = adapter->num_vfs % 32; |
| 2878 | reg_offset = (adapter->num_vfs > 32) ? 1 : 0; |
| 2879 | |
| 2880 | /* Enable only the PF's pool for Tx/Rx */ |
| 2881 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), (1 << vf_shift)); |
| 2882 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset ^ 1), 0); |
| 2883 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), (1 << vf_shift)); |
| 2884 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset ^ 1), 0); |
| 2885 | IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); |
| 2886 | |
| 2887 | /* Map PF MAC address in RAR Entry 0 to first pool following VFs */ |
| 2888 | hw->mac.ops.set_vmdq(hw, 0, adapter->num_vfs); |
| 2889 | |
| 2890 | /* |
| 2891 | * Set up VF register offsets for selected VT Mode, |
| 2892 | * i.e. 32 or 64 VFs for SR-IOV |
| 2893 | */ |
| 2894 | gcr_ext = IXGBE_READ_REG(hw, IXGBE_GCR_EXT); |
| 2895 | gcr_ext |= IXGBE_GCR_EXT_MSIX_EN; |
| 2896 | gcr_ext |= IXGBE_GCR_EXT_VT_MODE_64; |
| 2897 | IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext); |
| 2898 | |
| 2899 | /* enable Tx loopback for VF/PF communication */ |
| 2900 | IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); |
| 2901 | } |
| 2902 | |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 2903 | static void ixgbe_set_rx_buffer_len(struct ixgbe_adapter *adapter) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2904 | { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2905 | struct ixgbe_hw *hw = &adapter->hw; |
| 2906 | struct net_device *netdev = adapter->netdev; |
| 2907 | int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 2908 | int rx_buf_len; |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 2909 | struct ixgbe_ring *rx_ring; |
| 2910 | int i; |
| 2911 | u32 mhadd, hlreg0; |
Alexander Duyck | 4865452 | 2010-08-19 13:36:27 +0000 | [diff] [blame] | 2912 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2913 | /* Decide whether to use packet split mode or not */ |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 2914 | /* Do not use packet split if we're in SR-IOV Mode */ |
| 2915 | if (!adapter->num_vfs) |
| 2916 | adapter->flags |= IXGBE_FLAG_RX_PS_ENABLED; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2917 | |
| 2918 | /* Set the RX buffer length according to the mode */ |
| 2919 | if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) { |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 2920 | rx_buf_len = IXGBE_RX_HDR_SIZE; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2921 | } else { |
Peter P Waskiewicz Jr | 0c19d6a | 2009-07-30 12:25:28 +0000 | [diff] [blame] | 2922 | if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) && |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 2923 | (netdev->mtu <= ETH_DATA_LEN)) |
Jesse Brandeburg | 7c6e0a4 | 2008-08-26 04:27:16 -0700 | [diff] [blame] | 2924 | rx_buf_len = MAXIMUM_ETHERNET_VLAN_SIZE; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2925 | else |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 2926 | rx_buf_len = ALIGN(max_frame + VLAN_HLEN, 1024); |
| 2927 | } |
| 2928 | |
| 2929 | #ifdef IXGBE_FCOE |
| 2930 | /* adjust max frame to be able to do baby jumbo for FCoE */ |
| 2931 | if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) && |
| 2932 | (max_frame < IXGBE_FCOE_JUMBO_FRAME_SIZE)) |
| 2933 | max_frame = IXGBE_FCOE_JUMBO_FRAME_SIZE; |
| 2934 | |
| 2935 | #endif /* IXGBE_FCOE */ |
| 2936 | mhadd = IXGBE_READ_REG(hw, IXGBE_MHADD); |
| 2937 | if (max_frame != (mhadd >> IXGBE_MHADD_MFS_SHIFT)) { |
| 2938 | mhadd &= ~IXGBE_MHADD_MFS_MASK; |
| 2939 | mhadd |= max_frame << IXGBE_MHADD_MFS_SHIFT; |
| 2940 | |
| 2941 | IXGBE_WRITE_REG(hw, IXGBE_MHADD, mhadd); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2942 | } |
| 2943 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2944 | hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0); |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 2945 | /* set jumbo enable since MHADD.MFS is keeping size locked at max_frame */ |
| 2946 | hlreg0 |= IXGBE_HLREG0_JUMBOEN; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2947 | IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); |
| 2948 | |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 2949 | /* |
| 2950 | * Setup the HW Rx Head and Tail Descriptor Pointers and |
| 2951 | * the Base and Length of the Rx Descriptor Ring |
| 2952 | */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 2953 | for (i = 0; i < adapter->num_rx_queues; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 2954 | rx_ring = adapter->rx_ring[i]; |
Yi Zou | a6616b4 | 2009-08-06 13:05:23 +0000 | [diff] [blame] | 2955 | rx_ring->rx_buf_len = rx_buf_len; |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2956 | |
Yi Zou | 6e455b89 | 2009-08-06 13:05:44 +0000 | [diff] [blame] | 2957 | if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) |
| 2958 | rx_ring->flags |= IXGBE_RING_RX_PS_ENABLED; |
Peter P Waskiewicz Jr | 1b3ff02 | 2009-09-14 07:47:27 +0000 | [diff] [blame] | 2959 | else |
| 2960 | rx_ring->flags &= ~IXGBE_RING_RX_PS_ENABLED; |
Jesse Brandeburg | cc41ac7 | 2008-08-26 04:27:27 -0700 | [diff] [blame] | 2961 | |
Yi Zou | 63f39bd | 2009-05-17 12:34:35 +0000 | [diff] [blame] | 2962 | #ifdef IXGBE_FCOE |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2963 | if (netdev->features & NETIF_F_FCOE_MTU) { |
Yi Zou | 63f39bd | 2009-05-17 12:34:35 +0000 | [diff] [blame] | 2964 | struct ixgbe_ring_feature *f; |
| 2965 | f = &adapter->ring_feature[RING_F_FCOE]; |
Yi Zou | 6e455b89 | 2009-08-06 13:05:44 +0000 | [diff] [blame] | 2966 | if ((i >= f->mask) && (i < f->mask + f->indices)) { |
| 2967 | rx_ring->flags &= ~IXGBE_RING_RX_PS_ENABLED; |
| 2968 | if (rx_buf_len < IXGBE_FCOE_JUMBO_FRAME_SIZE) |
| 2969 | rx_ring->rx_buf_len = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 2970 | IXGBE_FCOE_JUMBO_FRAME_SIZE; |
Yi Zou | 6e455b89 | 2009-08-06 13:05:44 +0000 | [diff] [blame] | 2971 | } |
Yi Zou | 63f39bd | 2009-05-17 12:34:35 +0000 | [diff] [blame] | 2972 | } |
Yi Zou | 63f39bd | 2009-05-17 12:34:35 +0000 | [diff] [blame] | 2973 | #endif /* IXGBE_FCOE */ |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 2974 | } |
| 2975 | |
| 2976 | } |
| 2977 | |
Alexander Duyck | 7367096 | 2010-08-19 13:38:34 +0000 | [diff] [blame] | 2978 | static void ixgbe_setup_rdrxctl(struct ixgbe_adapter *adapter) |
| 2979 | { |
| 2980 | struct ixgbe_hw *hw = &adapter->hw; |
| 2981 | u32 rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL); |
| 2982 | |
| 2983 | switch (hw->mac.type) { |
| 2984 | case ixgbe_mac_82598EB: |
| 2985 | /* |
| 2986 | * For VMDq support of different descriptor types or |
| 2987 | * buffer sizes through the use of multiple SRRCTL |
| 2988 | * registers, RDRXCTL.MVMEN must be set to 1 |
| 2989 | * |
| 2990 | * also, the manual doesn't mention it clearly but DCA hints |
| 2991 | * will only use queue 0's tags unless this bit is set. Side |
| 2992 | * effects of setting this bit are only that SRRCTL must be |
| 2993 | * fully programmed [0..15] |
| 2994 | */ |
| 2995 | rdrxctl |= IXGBE_RDRXCTL_MVMEN; |
| 2996 | break; |
| 2997 | case ixgbe_mac_82599EB: |
| 2998 | /* Disable RSC for ACK packets */ |
| 2999 | IXGBE_WRITE_REG(hw, IXGBE_RSCDBU, |
| 3000 | (IXGBE_RSCDBU_RSCACKDIS | IXGBE_READ_REG(hw, IXGBE_RSCDBU))); |
| 3001 | rdrxctl &= ~IXGBE_RDRXCTL_RSCFRSTSIZE; |
| 3002 | /* hardware requires some bits to be set by default */ |
| 3003 | rdrxctl |= (IXGBE_RDRXCTL_RSCACKC | IXGBE_RDRXCTL_FCOE_WRFIX); |
| 3004 | rdrxctl |= IXGBE_RDRXCTL_CRCSTRIP; |
| 3005 | break; |
| 3006 | default: |
| 3007 | /* We should do nothing since we don't know this hardware */ |
| 3008 | return; |
| 3009 | } |
| 3010 | |
| 3011 | IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl); |
| 3012 | } |
| 3013 | |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 3014 | /** |
| 3015 | * ixgbe_configure_rx - Configure 8259x Receive Unit after Reset |
| 3016 | * @adapter: board private structure |
| 3017 | * |
| 3018 | * Configure the Rx unit of the MAC after a reset. |
| 3019 | **/ |
| 3020 | static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) |
| 3021 | { |
| 3022 | struct ixgbe_hw *hw = &adapter->hw; |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 3023 | int i; |
| 3024 | u32 rxctrl; |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 3025 | |
| 3026 | /* disable receives while setting up the descriptors */ |
| 3027 | rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); |
| 3028 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN); |
| 3029 | |
| 3030 | ixgbe_setup_psrtype(adapter); |
Alexander Duyck | 7367096 | 2010-08-19 13:38:34 +0000 | [diff] [blame] | 3031 | ixgbe_setup_rdrxctl(adapter); |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 3032 | |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 3033 | /* Program registers for the distribution of queues */ |
Alexander Duyck | f5b4a52 | 2010-08-19 13:38:57 +0000 | [diff] [blame] | 3034 | ixgbe_setup_mrqc(adapter); |
Alexander Duyck | f5b4a52 | 2010-08-19 13:38:57 +0000 | [diff] [blame] | 3035 | |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 3036 | ixgbe_set_uta(adapter); |
| 3037 | |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 3038 | /* set_rx_buffer_len must be called before ring initialization */ |
| 3039 | ixgbe_set_rx_buffer_len(adapter); |
| 3040 | |
| 3041 | /* |
| 3042 | * Setup the HW Rx Head and Tail Descriptor Pointers and |
| 3043 | * the Base and Length of the Rx Descriptor Ring |
| 3044 | */ |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 3045 | for (i = 0; i < adapter->num_rx_queues; i++) |
| 3046 | ixgbe_configure_rx_ring(adapter, adapter->rx_ring[i]); |
Mallikarjuna R Chilakala | 177db6f | 2008-06-18 15:32:19 -0700 | [diff] [blame] | 3047 | |
Alexander Duyck | 9e10e04 | 2010-08-19 13:40:06 +0000 | [diff] [blame] | 3048 | /* disable drop enable for 82598 parts */ |
| 3049 | if (hw->mac.type == ixgbe_mac_82598EB) |
| 3050 | rxctrl |= IXGBE_RXCTRL_DMBYPS; |
| 3051 | |
| 3052 | /* enable all receives */ |
| 3053 | rxctrl |= IXGBE_RXCTRL_RXEN; |
| 3054 | hw->mac.ops.enable_rx_dma(hw, rxctrl); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3055 | } |
| 3056 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3057 | static void ixgbe_vlan_rx_add_vid(struct net_device *netdev, u16 vid) |
| 3058 | { |
| 3059 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 3060 | struct ixgbe_hw *hw = &adapter->hw; |
Greg Rose | 1ada1b1 | 2010-01-22 22:45:43 +0000 | [diff] [blame] | 3061 | int pool_ndx = adapter->num_vfs; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3062 | |
| 3063 | /* add VID to filter table */ |
Greg Rose | 1ada1b1 | 2010-01-22 22:45:43 +0000 | [diff] [blame] | 3064 | hw->mac.ops.set_vfta(&adapter->hw, vid, pool_ndx, true); |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3065 | set_bit(vid, adapter->active_vlans); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3066 | } |
| 3067 | |
| 3068 | static void ixgbe_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) |
| 3069 | { |
| 3070 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 3071 | struct ixgbe_hw *hw = &adapter->hw; |
Greg Rose | 1ada1b1 | 2010-01-22 22:45:43 +0000 | [diff] [blame] | 3072 | int pool_ndx = adapter->num_vfs; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3073 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3074 | /* remove VID from filter table */ |
Greg Rose | 1ada1b1 | 2010-01-22 22:45:43 +0000 | [diff] [blame] | 3075 | hw->mac.ops.set_vfta(&adapter->hw, vid, pool_ndx, false); |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3076 | clear_bit(vid, adapter->active_vlans); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3077 | } |
| 3078 | |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3079 | /** |
| 3080 | * ixgbe_vlan_filter_disable - helper to disable hw vlan filtering |
| 3081 | * @adapter: driver data |
| 3082 | */ |
| 3083 | static void ixgbe_vlan_filter_disable(struct ixgbe_adapter *adapter) |
| 3084 | { |
| 3085 | struct ixgbe_hw *hw = &adapter->hw; |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3086 | u32 vlnctrl; |
| 3087 | |
| 3088 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
| 3089 | vlnctrl &= ~(IXGBE_VLNCTRL_VFE | IXGBE_VLNCTRL_CFIEN); |
| 3090 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
| 3091 | } |
| 3092 | |
| 3093 | /** |
| 3094 | * ixgbe_vlan_filter_enable - helper to enable hw vlan filtering |
| 3095 | * @adapter: driver data |
| 3096 | */ |
| 3097 | static void ixgbe_vlan_filter_enable(struct ixgbe_adapter *adapter) |
| 3098 | { |
| 3099 | struct ixgbe_hw *hw = &adapter->hw; |
| 3100 | u32 vlnctrl; |
| 3101 | |
| 3102 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
| 3103 | vlnctrl |= IXGBE_VLNCTRL_VFE; |
| 3104 | vlnctrl &= ~IXGBE_VLNCTRL_CFIEN; |
| 3105 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
| 3106 | } |
| 3107 | |
| 3108 | /** |
| 3109 | * ixgbe_vlan_strip_disable - helper to disable hw vlan stripping |
| 3110 | * @adapter: driver data |
| 3111 | */ |
| 3112 | static void ixgbe_vlan_strip_disable(struct ixgbe_adapter *adapter) |
| 3113 | { |
| 3114 | struct ixgbe_hw *hw = &adapter->hw; |
| 3115 | u32 vlnctrl; |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3116 | int i, j; |
| 3117 | |
| 3118 | switch (hw->mac.type) { |
| 3119 | case ixgbe_mac_82598EB: |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3120 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
| 3121 | vlnctrl &= ~IXGBE_VLNCTRL_VME; |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3122 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
| 3123 | break; |
| 3124 | case ixgbe_mac_82599EB: |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3125 | for (i = 0; i < adapter->num_rx_queues; i++) { |
| 3126 | j = adapter->rx_ring[i]->reg_idx; |
| 3127 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); |
| 3128 | vlnctrl &= ~IXGBE_RXDCTL_VME; |
| 3129 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); |
| 3130 | } |
| 3131 | break; |
| 3132 | default: |
| 3133 | break; |
| 3134 | } |
| 3135 | } |
| 3136 | |
| 3137 | /** |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3138 | * ixgbe_vlan_strip_enable - helper to enable hw vlan stripping |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3139 | * @adapter: driver data |
| 3140 | */ |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3141 | static void ixgbe_vlan_strip_enable(struct ixgbe_adapter *adapter) |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3142 | { |
| 3143 | struct ixgbe_hw *hw = &adapter->hw; |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3144 | u32 vlnctrl; |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3145 | int i, j; |
| 3146 | |
| 3147 | switch (hw->mac.type) { |
| 3148 | case ixgbe_mac_82598EB: |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3149 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
| 3150 | vlnctrl |= IXGBE_VLNCTRL_VME; |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3151 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
| 3152 | break; |
| 3153 | case ixgbe_mac_82599EB: |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3154 | for (i = 0; i < adapter->num_rx_queues; i++) { |
| 3155 | j = adapter->rx_ring[i]->reg_idx; |
| 3156 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); |
| 3157 | vlnctrl |= IXGBE_RXDCTL_VME; |
| 3158 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); |
| 3159 | } |
| 3160 | break; |
| 3161 | default: |
| 3162 | break; |
| 3163 | } |
| 3164 | } |
| 3165 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3166 | static void ixgbe_restore_vlan(struct ixgbe_adapter *adapter) |
| 3167 | { |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3168 | u16 vid; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3169 | |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3170 | ixgbe_vlan_rx_add_vid(adapter->netdev, 0); |
| 3171 | |
| 3172 | for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID) |
| 3173 | ixgbe_vlan_rx_add_vid(adapter->netdev, vid); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3174 | } |
| 3175 | |
| 3176 | /** |
Alexander Duyck | 2850062 | 2010-06-15 09:25:48 +0000 | [diff] [blame] | 3177 | * ixgbe_write_uc_addr_list - write unicast addresses to RAR table |
| 3178 | * @netdev: network interface device structure |
| 3179 | * |
| 3180 | * Writes unicast address list to the RAR table. |
| 3181 | * Returns: -ENOMEM on failure/insufficient address space |
| 3182 | * 0 on no addresses written |
| 3183 | * X on writing X addresses to the RAR table |
| 3184 | **/ |
| 3185 | static int ixgbe_write_uc_addr_list(struct net_device *netdev) |
| 3186 | { |
| 3187 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 3188 | struct ixgbe_hw *hw = &adapter->hw; |
| 3189 | unsigned int vfn = adapter->num_vfs; |
| 3190 | unsigned int rar_entries = hw->mac.num_rar_entries - (vfn + 1); |
| 3191 | int count = 0; |
| 3192 | |
| 3193 | /* return ENOMEM indicating insufficient memory for addresses */ |
| 3194 | if (netdev_uc_count(netdev) > rar_entries) |
| 3195 | return -ENOMEM; |
| 3196 | |
| 3197 | if (!netdev_uc_empty(netdev) && rar_entries) { |
| 3198 | struct netdev_hw_addr *ha; |
| 3199 | /* return error if we do not support writing to RAR table */ |
| 3200 | if (!hw->mac.ops.set_rar) |
| 3201 | return -ENOMEM; |
| 3202 | |
| 3203 | netdev_for_each_uc_addr(ha, netdev) { |
| 3204 | if (!rar_entries) |
| 3205 | break; |
| 3206 | hw->mac.ops.set_rar(hw, rar_entries--, ha->addr, |
| 3207 | vfn, IXGBE_RAH_AV); |
| 3208 | count++; |
| 3209 | } |
| 3210 | } |
| 3211 | /* write the addresses in reverse order to avoid write combining */ |
| 3212 | for (; rar_entries > 0 ; rar_entries--) |
| 3213 | hw->mac.ops.clear_rar(hw, rar_entries); |
| 3214 | |
| 3215 | return count; |
| 3216 | } |
| 3217 | |
| 3218 | /** |
Christopher Leech | 2c5645c | 2008-08-26 04:27:02 -0700 | [diff] [blame] | 3219 | * ixgbe_set_rx_mode - Unicast, Multicast and Promiscuous mode set |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3220 | * @netdev: network interface device structure |
| 3221 | * |
Christopher Leech | 2c5645c | 2008-08-26 04:27:02 -0700 | [diff] [blame] | 3222 | * The set_rx_method entry point is called whenever the unicast/multicast |
| 3223 | * address list or the network interface flags are updated. This routine is |
| 3224 | * responsible for configuring the hardware for proper unicast, multicast and |
| 3225 | * promiscuous mode. |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3226 | **/ |
Greg Rose | 7f87047 | 2010-01-09 02:25:29 +0000 | [diff] [blame] | 3227 | void ixgbe_set_rx_mode(struct net_device *netdev) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3228 | { |
| 3229 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 3230 | struct ixgbe_hw *hw = &adapter->hw; |
Alexander Duyck | 2850062 | 2010-06-15 09:25:48 +0000 | [diff] [blame] | 3231 | u32 fctrl, vmolr = IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE; |
| 3232 | int count; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3233 | |
| 3234 | /* Check for Promiscuous and All Multicast modes */ |
| 3235 | |
| 3236 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); |
| 3237 | |
Alexander Duyck | f5dc442 | 2010-08-19 13:36:49 +0000 | [diff] [blame] | 3238 | /* set all bits that we expect to always be set */ |
| 3239 | fctrl |= IXGBE_FCTRL_BAM; |
| 3240 | fctrl |= IXGBE_FCTRL_DPF; /* discard pause frames when FC enabled */ |
| 3241 | fctrl |= IXGBE_FCTRL_PMCF; |
| 3242 | |
Alexander Duyck | 2850062 | 2010-06-15 09:25:48 +0000 | [diff] [blame] | 3243 | /* clear the bits we are changing the status of */ |
| 3244 | fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); |
| 3245 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3246 | if (netdev->flags & IFF_PROMISC) { |
Emil Tantilov | e433ea1 | 2010-05-13 17:33:00 +0000 | [diff] [blame] | 3247 | hw->addr_ctrl.user_set_promisc = true; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3248 | fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); |
Alexander Duyck | 2850062 | 2010-06-15 09:25:48 +0000 | [diff] [blame] | 3249 | vmolr |= (IXGBE_VMOLR_ROPE | IXGBE_VMOLR_MPE); |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3250 | /* don't hardware filter vlans in promisc mode */ |
| 3251 | ixgbe_vlan_filter_disable(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3252 | } else { |
Patrick McHardy | 746b9f0 | 2008-07-16 20:15:45 -0700 | [diff] [blame] | 3253 | if (netdev->flags & IFF_ALLMULTI) { |
| 3254 | fctrl |= IXGBE_FCTRL_MPE; |
Alexander Duyck | 2850062 | 2010-06-15 09:25:48 +0000 | [diff] [blame] | 3255 | vmolr |= IXGBE_VMOLR_MPE; |
| 3256 | } else { |
| 3257 | /* |
| 3258 | * Write addresses to the MTA, if the attempt fails |
| 3259 | * then we should just turn on promiscous mode so |
| 3260 | * that we can at least receive multicast traffic |
| 3261 | */ |
| 3262 | hw->mac.ops.update_mc_addr_list(hw, netdev); |
| 3263 | vmolr |= IXGBE_VMOLR_ROMPE; |
Patrick McHardy | 746b9f0 | 2008-07-16 20:15:45 -0700 | [diff] [blame] | 3264 | } |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3265 | ixgbe_vlan_filter_enable(adapter); |
Emil Tantilov | e433ea1 | 2010-05-13 17:33:00 +0000 | [diff] [blame] | 3266 | hw->addr_ctrl.user_set_promisc = false; |
Alexander Duyck | 2850062 | 2010-06-15 09:25:48 +0000 | [diff] [blame] | 3267 | /* |
| 3268 | * Write addresses to available RAR registers, if there is not |
| 3269 | * sufficient space to store all the addresses then enable |
| 3270 | * unicast promiscous mode |
| 3271 | */ |
| 3272 | count = ixgbe_write_uc_addr_list(netdev); |
| 3273 | if (count < 0) { |
| 3274 | fctrl |= IXGBE_FCTRL_UPE; |
| 3275 | vmolr |= IXGBE_VMOLR_ROPE; |
| 3276 | } |
| 3277 | } |
| 3278 | |
| 3279 | if (adapter->num_vfs) { |
| 3280 | ixgbe_restore_vf_multicasts(adapter); |
| 3281 | vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(adapter->num_vfs)) & |
| 3282 | ~(IXGBE_VMOLR_MPE | IXGBE_VMOLR_ROMPE | |
| 3283 | IXGBE_VMOLR_ROPE); |
| 3284 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(adapter->num_vfs), vmolr); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3285 | } |
| 3286 | |
| 3287 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3288 | |
| 3289 | if (netdev->features & NETIF_F_HW_VLAN_RX) |
| 3290 | ixgbe_vlan_strip_enable(adapter); |
| 3291 | else |
| 3292 | ixgbe_vlan_strip_disable(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3293 | } |
| 3294 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3295 | static void ixgbe_napi_enable_all(struct ixgbe_adapter *adapter) |
| 3296 | { |
| 3297 | int q_idx; |
| 3298 | struct ixgbe_q_vector *q_vector; |
| 3299 | int q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
| 3300 | |
| 3301 | /* legacy and MSI only use one vector */ |
| 3302 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) |
| 3303 | q_vectors = 1; |
| 3304 | |
| 3305 | for (q_idx = 0; q_idx < q_vectors; q_idx++) { |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 3306 | struct napi_struct *napi; |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 3307 | q_vector = adapter->q_vector[q_idx]; |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 3308 | napi = &q_vector->napi; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 3309 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
| 3310 | if (!q_vector->rxr_count || !q_vector->txr_count) { |
| 3311 | if (q_vector->txr_count == 1) |
| 3312 | napi->poll = &ixgbe_clean_txonly; |
| 3313 | else if (q_vector->rxr_count == 1) |
| 3314 | napi->poll = &ixgbe_clean_rxonly; |
| 3315 | } |
| 3316 | } |
Jesse Brandeburg | f084827 | 2008-09-11 19:59:42 -0700 | [diff] [blame] | 3317 | |
| 3318 | napi_enable(napi); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3319 | } |
| 3320 | } |
| 3321 | |
| 3322 | static void ixgbe_napi_disable_all(struct ixgbe_adapter *adapter) |
| 3323 | { |
| 3324 | int q_idx; |
| 3325 | struct ixgbe_q_vector *q_vector; |
| 3326 | int q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
| 3327 | |
| 3328 | /* legacy and MSI only use one vector */ |
| 3329 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) |
| 3330 | q_vectors = 1; |
| 3331 | |
| 3332 | for (q_idx = 0; q_idx < q_vectors; q_idx++) { |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 3333 | q_vector = adapter->q_vector[q_idx]; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3334 | napi_disable(&q_vector->napi); |
| 3335 | } |
| 3336 | } |
| 3337 | |
Jeff Kirsher | 7a6b6f5 | 2008-11-25 01:02:08 -0800 | [diff] [blame] | 3338 | #ifdef CONFIG_IXGBE_DCB |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 3339 | /* |
| 3340 | * ixgbe_configure_dcb - Configure DCB hardware |
| 3341 | * @adapter: ixgbe adapter struct |
| 3342 | * |
| 3343 | * This is called by the driver on open to configure the DCB hardware. |
| 3344 | * This is also called by the gennetlink interface when reconfiguring |
| 3345 | * the DCB state. |
| 3346 | */ |
| 3347 | static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter) |
| 3348 | { |
| 3349 | struct ixgbe_hw *hw = &adapter->hw; |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3350 | u32 txdctl; |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 3351 | int i, j; |
| 3352 | |
Alexander Duyck | 67ebd79 | 2010-08-19 13:34:04 +0000 | [diff] [blame] | 3353 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) { |
| 3354 | if (hw->mac.type == ixgbe_mac_82598EB) |
| 3355 | netif_set_gso_max_size(adapter->netdev, 65536); |
| 3356 | return; |
| 3357 | } |
| 3358 | |
| 3359 | if (hw->mac.type == ixgbe_mac_82598EB) |
| 3360 | netif_set_gso_max_size(adapter->netdev, 32768); |
| 3361 | |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 3362 | ixgbe_dcb_calculate_tc_credits(&adapter->dcb_cfg, DCB_TX_CONFIG); |
| 3363 | ixgbe_dcb_calculate_tc_credits(&adapter->dcb_cfg, DCB_RX_CONFIG); |
| 3364 | |
| 3365 | /* reconfigure the hardware */ |
| 3366 | ixgbe_dcb_hw_config(&adapter->hw, &adapter->dcb_cfg); |
| 3367 | |
| 3368 | for (i = 0; i < adapter->num_tx_queues; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 3369 | j = adapter->tx_ring[i]->reg_idx; |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 3370 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(j)); |
| 3371 | /* PThresh workaround for Tx hang with DFP enabled. */ |
| 3372 | txdctl |= 32; |
| 3373 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(j), txdctl); |
| 3374 | } |
| 3375 | /* Enable VLAN tag insert/strip */ |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3376 | adapter->netdev->features |= NETIF_F_HW_VLAN_RX; |
Jesse Brandeburg | 5f6c018 | 2010-04-14 16:04:23 -0700 | [diff] [blame] | 3377 | |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 3378 | hw->mac.ops.set_vfta(&adapter->hw, 0, 0, true); |
| 3379 | } |
| 3380 | |
| 3381 | #endif |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3382 | static void ixgbe_configure(struct ixgbe_adapter *adapter) |
| 3383 | { |
| 3384 | struct net_device *netdev = adapter->netdev; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 3385 | struct ixgbe_hw *hw = &adapter->hw; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3386 | int i; |
| 3387 | |
Jeff Kirsher | 7a6b6f5 | 2008-11-25 01:02:08 -0800 | [diff] [blame] | 3388 | #ifdef CONFIG_IXGBE_DCB |
Alexander Duyck | 67ebd79 | 2010-08-19 13:34:04 +0000 | [diff] [blame] | 3389 | ixgbe_configure_dcb(adapter); |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 3390 | #endif |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3391 | |
Jesse Gross | f62bbb5 | 2010-10-20 13:56:10 +0000 | [diff] [blame] | 3392 | ixgbe_set_rx_mode(netdev); |
| 3393 | ixgbe_restore_vlan(adapter); |
| 3394 | |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 3395 | #ifdef IXGBE_FCOE |
| 3396 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) |
| 3397 | ixgbe_configure_fcoe(adapter); |
| 3398 | |
| 3399 | #endif /* IXGBE_FCOE */ |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 3400 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
| 3401 | for (i = 0; i < adapter->num_tx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 3402 | adapter->tx_ring[i]->atr_sample_rate = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3403 | adapter->atr_sample_rate; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 3404 | ixgbe_init_fdir_signature_82599(hw, adapter->fdir_pballoc); |
| 3405 | } else if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) { |
| 3406 | ixgbe_init_fdir_perfect_82599(hw, adapter->fdir_pballoc); |
| 3407 | } |
Alexander Duyck | 933d41f | 2010-09-07 21:34:29 +0000 | [diff] [blame] | 3408 | ixgbe_configure_virtualization(adapter); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 3409 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3410 | ixgbe_configure_tx(adapter); |
| 3411 | ixgbe_configure_rx(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3412 | } |
| 3413 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3414 | static inline bool ixgbe_is_sfp(struct ixgbe_hw *hw) |
| 3415 | { |
| 3416 | switch (hw->phy.type) { |
| 3417 | case ixgbe_phy_sfp_avago: |
| 3418 | case ixgbe_phy_sfp_ftl: |
| 3419 | case ixgbe_phy_sfp_intel: |
| 3420 | case ixgbe_phy_sfp_unknown: |
Don Skidmore | ea0a04d | 2010-05-18 16:00:13 +0000 | [diff] [blame] | 3421 | case ixgbe_phy_sfp_passive_tyco: |
| 3422 | case ixgbe_phy_sfp_passive_unknown: |
| 3423 | case ixgbe_phy_sfp_active_unknown: |
| 3424 | case ixgbe_phy_sfp_ftl_active: |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3425 | return true; |
| 3426 | default: |
| 3427 | return false; |
| 3428 | } |
| 3429 | } |
| 3430 | |
Peter P Waskiewicz Jr | 0ecc061 | 2009-02-06 21:46:54 -0800 | [diff] [blame] | 3431 | /** |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3432 | * ixgbe_sfp_link_config - set up SFP+ link |
| 3433 | * @adapter: pointer to private adapter struct |
| 3434 | **/ |
| 3435 | static void ixgbe_sfp_link_config(struct ixgbe_adapter *adapter) |
| 3436 | { |
| 3437 | struct ixgbe_hw *hw = &adapter->hw; |
| 3438 | |
| 3439 | if (hw->phy.multispeed_fiber) { |
| 3440 | /* |
| 3441 | * In multispeed fiber setups, the device may not have |
| 3442 | * had a physical connection when the driver loaded. |
| 3443 | * If that's the case, the initial link configuration |
| 3444 | * couldn't get the MAC into 10G or 1G mode, so we'll |
| 3445 | * never have a link status change interrupt fire. |
| 3446 | * We need to try and force an autonegotiation |
| 3447 | * session, then bring up link. |
| 3448 | */ |
| 3449 | hw->mac.ops.setup_sfp(hw); |
| 3450 | if (!(adapter->flags & IXGBE_FLAG_IN_SFP_LINK_TASK)) |
| 3451 | schedule_work(&adapter->multispeed_fiber_task); |
| 3452 | } else { |
| 3453 | /* |
| 3454 | * Direct Attach Cu and non-multispeed fiber modules |
| 3455 | * still need to be configured properly prior to |
| 3456 | * attempting link. |
| 3457 | */ |
| 3458 | if (!(adapter->flags & IXGBE_FLAG_IN_SFP_MOD_TASK)) |
| 3459 | schedule_work(&adapter->sfp_config_module_task); |
| 3460 | } |
| 3461 | } |
| 3462 | |
| 3463 | /** |
| 3464 | * ixgbe_non_sfp_link_config - set up non-SFP+ link |
Peter P Waskiewicz Jr | 0ecc061 | 2009-02-06 21:46:54 -0800 | [diff] [blame] | 3465 | * @hw: pointer to private hardware struct |
| 3466 | * |
| 3467 | * Returns 0 on success, negative on failure |
| 3468 | **/ |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3469 | static int ixgbe_non_sfp_link_config(struct ixgbe_hw *hw) |
Peter P Waskiewicz Jr | 0ecc061 | 2009-02-06 21:46:54 -0800 | [diff] [blame] | 3470 | { |
| 3471 | u32 autoneg; |
Mallikarjuna R Chilakala | 8620a10 | 2009-09-01 13:49:35 +0000 | [diff] [blame] | 3472 | bool negotiation, link_up = false; |
Peter P Waskiewicz Jr | 0ecc061 | 2009-02-06 21:46:54 -0800 | [diff] [blame] | 3473 | u32 ret = IXGBE_ERR_LINK_SETUP; |
| 3474 | |
| 3475 | if (hw->mac.ops.check_link) |
| 3476 | ret = hw->mac.ops.check_link(hw, &autoneg, &link_up, false); |
| 3477 | |
| 3478 | if (ret) |
| 3479 | goto link_cfg_out; |
| 3480 | |
| 3481 | if (hw->mac.ops.get_link_capabilities) |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3482 | ret = hw->mac.ops.get_link_capabilities(hw, &autoneg, |
| 3483 | &negotiation); |
Peter P Waskiewicz Jr | 0ecc061 | 2009-02-06 21:46:54 -0800 | [diff] [blame] | 3484 | if (ret) |
| 3485 | goto link_cfg_out; |
| 3486 | |
Mallikarjuna R Chilakala | 8620a10 | 2009-09-01 13:49:35 +0000 | [diff] [blame] | 3487 | if (hw->mac.ops.setup_link) |
| 3488 | ret = hw->mac.ops.setup_link(hw, autoneg, negotiation, link_up); |
Peter P Waskiewicz Jr | 0ecc061 | 2009-02-06 21:46:54 -0800 | [diff] [blame] | 3489 | link_cfg_out: |
| 3490 | return ret; |
| 3491 | } |
| 3492 | |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3493 | static void ixgbe_setup_gpie(struct ixgbe_adapter *adapter) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3494 | { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3495 | struct ixgbe_hw *hw = &adapter->hw; |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3496 | u32 gpie = 0; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3497 | |
Jesse Brandeburg | 9b47144 | 2009-12-03 11:33:54 +0000 | [diff] [blame] | 3498 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3499 | gpie = IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_PBA_SUPPORT | |
| 3500 | IXGBE_GPIE_OCD; |
| 3501 | gpie |= IXGBE_GPIE_EIAME; |
Jesse Brandeburg | 9b47144 | 2009-12-03 11:33:54 +0000 | [diff] [blame] | 3502 | /* |
| 3503 | * use EIAM to auto-mask when MSI-X interrupt is asserted |
| 3504 | * this saves a register write for every interrupt |
| 3505 | */ |
| 3506 | switch (hw->mac.type) { |
| 3507 | case ixgbe_mac_82598EB: |
| 3508 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); |
| 3509 | break; |
| 3510 | default: |
| 3511 | case ixgbe_mac_82599EB: |
| 3512 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(0), 0xFFFFFFFF); |
| 3513 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(1), 0xFFFFFFFF); |
| 3514 | break; |
| 3515 | } |
| 3516 | } else { |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3517 | /* legacy interrupts, use EIAM to auto-mask when reading EICR, |
| 3518 | * specifically only auto mask tx and rx interrupts */ |
| 3519 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3520 | } |
| 3521 | |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3522 | /* XXX: to interrupt immediately for EICS writes, enable this */ |
| 3523 | /* gpie |= IXGBE_GPIE_EIMEN; */ |
| 3524 | |
| 3525 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
| 3526 | gpie &= ~IXGBE_GPIE_VTMODE_MASK; |
| 3527 | gpie |= IXGBE_GPIE_VTMODE_64; |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 3528 | } |
| 3529 | |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3530 | /* Enable fan failure interrupt */ |
| 3531 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) |
Jesse Brandeburg | 0befdb3 | 2008-10-31 00:46:40 -0700 | [diff] [blame] | 3532 | gpie |= IXGBE_SDP1_GPIEN; |
Jesse Brandeburg | 0befdb3 | 2008-10-31 00:46:40 -0700 | [diff] [blame] | 3533 | |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3534 | if (hw->mac.type == ixgbe_mac_82599EB) |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3535 | gpie |= IXGBE_SDP1_GPIEN; |
| 3536 | gpie |= IXGBE_SDP2_GPIEN; |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3537 | |
| 3538 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); |
| 3539 | } |
| 3540 | |
| 3541 | static int ixgbe_up_complete(struct ixgbe_adapter *adapter) |
| 3542 | { |
| 3543 | struct ixgbe_hw *hw = &adapter->hw; |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3544 | int err; |
Alexander Duyck | a34bcff | 2010-08-19 13:39:20 +0000 | [diff] [blame] | 3545 | u32 ctrl_ext; |
| 3546 | |
| 3547 | ixgbe_get_hw_control(adapter); |
| 3548 | ixgbe_setup_gpie(adapter); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3549 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3550 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
| 3551 | ixgbe_configure_msix(adapter); |
| 3552 | else |
| 3553 | ixgbe_configure_msi_and_legacy(adapter); |
| 3554 | |
Peter Waskiewicz | 61fac74 | 2010-04-27 00:38:15 +0000 | [diff] [blame] | 3555 | /* enable the optics */ |
| 3556 | if (hw->phy.multispeed_fiber) |
| 3557 | hw->mac.ops.enable_tx_laser(hw); |
| 3558 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3559 | clear_bit(__IXGBE_DOWN, &adapter->state); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3560 | ixgbe_napi_enable_all(adapter); |
| 3561 | |
| 3562 | /* clear any pending interrupts, may auto mask */ |
| 3563 | IXGBE_READ_REG(hw, IXGBE_EICR); |
Emil Tantilov | 6af3b9e | 2010-09-29 21:35:23 +0000 | [diff] [blame] | 3564 | ixgbe_irq_enable(adapter, true, true); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3565 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3566 | /* |
Don Skidmore | bf069c9 | 2009-05-07 10:39:54 +0000 | [diff] [blame] | 3567 | * If this adapter has a fan, check to see if we had a failure |
| 3568 | * before we enabled the interrupt. |
| 3569 | */ |
| 3570 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { |
| 3571 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); |
| 3572 | if (esdp & IXGBE_ESDP_SDP1) |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 3573 | e_crit(drv, "Fan has stopped, replace the adapter\n"); |
Don Skidmore | bf069c9 | 2009-05-07 10:39:54 +0000 | [diff] [blame] | 3574 | } |
| 3575 | |
| 3576 | /* |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3577 | * For hot-pluggable SFP+ devices, a new SFP+ module may have |
Don Skidmore | 19343de | 2009-07-02 12:50:31 +0000 | [diff] [blame] | 3578 | * arrived before interrupts were enabled but after probe. Such |
| 3579 | * devices wouldn't have their type identified yet. We need to |
| 3580 | * kick off the SFP+ module setup first, then try to bring up link. |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3581 | * If we're not hot-pluggable SFP+, we just need to configure link |
| 3582 | * and bring it up. |
| 3583 | */ |
Don Skidmore | 19343de | 2009-07-02 12:50:31 +0000 | [diff] [blame] | 3584 | if (hw->phy.type == ixgbe_phy_unknown) { |
| 3585 | err = hw->phy.ops.identify(hw); |
| 3586 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) { |
Don Skidmore | 5da43c1 | 2009-07-02 12:50:52 +0000 | [diff] [blame] | 3587 | /* |
| 3588 | * Take the device down and schedule the sfp tasklet |
| 3589 | * which will unregister_netdev and log it. |
| 3590 | */ |
Don Skidmore | 19343de | 2009-07-02 12:50:31 +0000 | [diff] [blame] | 3591 | ixgbe_down(adapter); |
Don Skidmore | 5da43c1 | 2009-07-02 12:50:52 +0000 | [diff] [blame] | 3592 | schedule_work(&adapter->sfp_config_module_task); |
Don Skidmore | 19343de | 2009-07-02 12:50:31 +0000 | [diff] [blame] | 3593 | return err; |
| 3594 | } |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3595 | } |
| 3596 | |
| 3597 | if (ixgbe_is_sfp(hw)) { |
| 3598 | ixgbe_sfp_link_config(adapter); |
| 3599 | } else { |
| 3600 | err = ixgbe_non_sfp_link_config(hw); |
| 3601 | if (err) |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 3602 | e_err(probe, "link_config FAILED %d\n", err); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 3603 | } |
Peter P Waskiewicz Jr | 0ecc061 | 2009-02-06 21:46:54 -0800 | [diff] [blame] | 3604 | |
Peter P Waskiewicz Jr | 1da100b | 2009-01-19 16:55:03 -0800 | [diff] [blame] | 3605 | /* enable transmits */ |
Alexander Duyck | 477de6e | 2010-08-19 13:38:11 +0000 | [diff] [blame] | 3606 | netif_tx_start_all_queues(adapter->netdev); |
Peter P Waskiewicz Jr | 1da100b | 2009-01-19 16:55:03 -0800 | [diff] [blame] | 3607 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3608 | /* bring the link up in the watchdog, this could race with our first |
| 3609 | * link up interrupt but shouldn't be a problem */ |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 3610 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; |
| 3611 | adapter->link_check_timeout = jiffies; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3612 | mod_timer(&adapter->watchdog_timer, jiffies); |
Greg Rose | c920569 | 2010-01-22 22:46:22 +0000 | [diff] [blame] | 3613 | |
| 3614 | /* Set PF Reset Done bit so PF/VF Mail Ops can work */ |
| 3615 | ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT); |
| 3616 | ctrl_ext |= IXGBE_CTRL_EXT_PFRSTD; |
| 3617 | IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext); |
| 3618 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3619 | return 0; |
| 3620 | } |
| 3621 | |
Ayyappan Veeraiyan | d4f8088 | 2008-02-01 15:58:41 -0800 | [diff] [blame] | 3622 | void ixgbe_reinit_locked(struct ixgbe_adapter *adapter) |
| 3623 | { |
| 3624 | WARN_ON(in_interrupt()); |
| 3625 | while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) |
| 3626 | msleep(1); |
| 3627 | ixgbe_down(adapter); |
Greg Rose | 5809a1a | 2010-03-24 09:36:08 +0000 | [diff] [blame] | 3628 | /* |
| 3629 | * If SR-IOV enabled then wait a bit before bringing the adapter |
| 3630 | * back up to give the VFs time to respond to the reset. The |
| 3631 | * two second wait is based upon the watchdog timer cycle in |
| 3632 | * the VF driver. |
| 3633 | */ |
| 3634 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
| 3635 | msleep(2000); |
Ayyappan Veeraiyan | d4f8088 | 2008-02-01 15:58:41 -0800 | [diff] [blame] | 3636 | ixgbe_up(adapter); |
| 3637 | clear_bit(__IXGBE_RESETTING, &adapter->state); |
| 3638 | } |
| 3639 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3640 | int ixgbe_up(struct ixgbe_adapter *adapter) |
| 3641 | { |
| 3642 | /* hardware has been reset, we need to reload some things */ |
| 3643 | ixgbe_configure(adapter); |
| 3644 | |
| 3645 | return ixgbe_up_complete(adapter); |
| 3646 | } |
| 3647 | |
| 3648 | void ixgbe_reset(struct ixgbe_adapter *adapter) |
| 3649 | { |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 3650 | struct ixgbe_hw *hw = &adapter->hw; |
Don Skidmore | 8ca783a | 2009-05-26 20:40:47 -0700 | [diff] [blame] | 3651 | int err; |
| 3652 | |
| 3653 | err = hw->mac.ops.init_hw(hw); |
Peter P Waskiewicz Jr | da4dd0f | 2009-06-04 11:10:35 +0000 | [diff] [blame] | 3654 | switch (err) { |
| 3655 | case 0: |
| 3656 | case IXGBE_ERR_SFP_NOT_PRESENT: |
| 3657 | break; |
| 3658 | case IXGBE_ERR_MASTER_REQUESTS_PENDING: |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 3659 | e_dev_err("master disable timed out\n"); |
Peter P Waskiewicz Jr | da4dd0f | 2009-06-04 11:10:35 +0000 | [diff] [blame] | 3660 | break; |
Peter P Waskiewicz Jr | 794caeb | 2009-06-04 16:02:24 +0000 | [diff] [blame] | 3661 | case IXGBE_ERR_EEPROM_VERSION: |
| 3662 | /* We are running on a pre-production device, log a warning */ |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 3663 | e_dev_warn("This device is a pre-production adapter/LOM. " |
| 3664 | "Please be aware there may be issuesassociated with " |
| 3665 | "your hardware. If you are experiencing problems " |
| 3666 | "please contact your Intel or hardware " |
| 3667 | "representative who provided you with this " |
| 3668 | "hardware.\n"); |
Peter P Waskiewicz Jr | 794caeb | 2009-06-04 16:02:24 +0000 | [diff] [blame] | 3669 | break; |
Peter P Waskiewicz Jr | da4dd0f | 2009-06-04 11:10:35 +0000 | [diff] [blame] | 3670 | default: |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 3671 | e_dev_err("Hardware Error: %d\n", err); |
Peter P Waskiewicz Jr | da4dd0f | 2009-06-04 11:10:35 +0000 | [diff] [blame] | 3672 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3673 | |
| 3674 | /* reprogram the RAR[0] in case user changed it. */ |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 3675 | hw->mac.ops.set_rar(hw, 0, hw->mac.addr, adapter->num_vfs, |
| 3676 | IXGBE_RAH_AV); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3677 | } |
| 3678 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3679 | /** |
| 3680 | * ixgbe_clean_rx_ring - Free Rx Buffers per Queue |
| 3681 | * @adapter: board private structure |
| 3682 | * @rx_ring: ring to free buffers from |
| 3683 | **/ |
| 3684 | static void ixgbe_clean_rx_ring(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3685 | struct ixgbe_ring *rx_ring) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3686 | { |
| 3687 | struct pci_dev *pdev = adapter->pdev; |
| 3688 | unsigned long size; |
| 3689 | unsigned int i; |
| 3690 | |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 3691 | /* ring already cleared, nothing to do */ |
| 3692 | if (!rx_ring->rx_buffer_info) |
| 3693 | return; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3694 | |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 3695 | /* Free all the Rx ring sk_buffs */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3696 | for (i = 0; i < rx_ring->count; i++) { |
| 3697 | struct ixgbe_rx_buffer *rx_buffer_info; |
| 3698 | |
| 3699 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; |
| 3700 | if (rx_buffer_info->dma) { |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 3701 | dma_unmap_single(&pdev->dev, rx_buffer_info->dma, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3702 | rx_ring->rx_buf_len, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 3703 | DMA_FROM_DEVICE); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3704 | rx_buffer_info->dma = 0; |
| 3705 | } |
| 3706 | if (rx_buffer_info->skb) { |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 3707 | struct sk_buff *skb = rx_buffer_info->skb; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3708 | rx_buffer_info->skb = NULL; |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 3709 | do { |
| 3710 | struct sk_buff *this = skb; |
Mallikarjuna R Chilakala | e8171aa | 2010-05-13 17:33:21 +0000 | [diff] [blame] | 3711 | if (IXGBE_RSC_CB(this)->delay_unmap) { |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 3712 | dma_unmap_single(&pdev->dev, |
| 3713 | IXGBE_RSC_CB(this)->dma, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3714 | rx_ring->rx_buf_len, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 3715 | DMA_FROM_DEVICE); |
Mallikarjuna R Chilakala | fd3686a | 2010-03-19 04:41:33 +0000 | [diff] [blame] | 3716 | IXGBE_RSC_CB(this)->dma = 0; |
Mallikarjuna R Chilakala | e8171aa | 2010-05-13 17:33:21 +0000 | [diff] [blame] | 3717 | IXGBE_RSC_CB(skb)->delay_unmap = false; |
Mallikarjuna R Chilakala | fd3686a | 2010-03-19 04:41:33 +0000 | [diff] [blame] | 3718 | } |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 3719 | skb = skb->prev; |
| 3720 | dev_kfree_skb(this); |
| 3721 | } while (skb); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3722 | } |
| 3723 | if (!rx_buffer_info->page) |
| 3724 | continue; |
Jesse Brandeburg | 4f57ca6 | 2009-06-30 11:44:56 +0000 | [diff] [blame] | 3725 | if (rx_buffer_info->page_dma) { |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 3726 | dma_unmap_page(&pdev->dev, rx_buffer_info->page_dma, |
| 3727 | PAGE_SIZE / 2, DMA_FROM_DEVICE); |
Jesse Brandeburg | 4f57ca6 | 2009-06-30 11:44:56 +0000 | [diff] [blame] | 3728 | rx_buffer_info->page_dma = 0; |
| 3729 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3730 | put_page(rx_buffer_info->page); |
| 3731 | rx_buffer_info->page = NULL; |
Jesse Brandeburg | 762f4c5 | 2008-09-11 19:58:43 -0700 | [diff] [blame] | 3732 | rx_buffer_info->page_offset = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3733 | } |
| 3734 | |
| 3735 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; |
| 3736 | memset(rx_ring->rx_buffer_info, 0, size); |
| 3737 | |
| 3738 | /* Zero out the descriptor ring */ |
| 3739 | memset(rx_ring->desc, 0, rx_ring->size); |
| 3740 | |
| 3741 | rx_ring->next_to_clean = 0; |
| 3742 | rx_ring->next_to_use = 0; |
| 3743 | |
Jesse Brandeburg | 9891ca7 | 2009-03-13 22:14:50 +0000 | [diff] [blame] | 3744 | if (rx_ring->head) |
| 3745 | writel(0, adapter->hw.hw_addr + rx_ring->head); |
| 3746 | if (rx_ring->tail) |
| 3747 | writel(0, adapter->hw.hw_addr + rx_ring->tail); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3748 | } |
| 3749 | |
| 3750 | /** |
| 3751 | * ixgbe_clean_tx_ring - Free Tx Buffers |
| 3752 | * @adapter: board private structure |
| 3753 | * @tx_ring: ring to be cleaned |
| 3754 | **/ |
| 3755 | static void ixgbe_clean_tx_ring(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3756 | struct ixgbe_ring *tx_ring) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3757 | { |
| 3758 | struct ixgbe_tx_buffer *tx_buffer_info; |
| 3759 | unsigned long size; |
| 3760 | unsigned int i; |
| 3761 | |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 3762 | /* ring already cleared, nothing to do */ |
| 3763 | if (!tx_ring->tx_buffer_info) |
| 3764 | return; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3765 | |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 3766 | /* Free all the Tx ring sk_buffs */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3767 | for (i = 0; i < tx_ring->count; i++) { |
| 3768 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
| 3769 | ixgbe_unmap_and_free_tx_resource(adapter, tx_buffer_info); |
| 3770 | } |
| 3771 | |
| 3772 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; |
| 3773 | memset(tx_ring->tx_buffer_info, 0, size); |
| 3774 | |
| 3775 | /* Zero out the descriptor ring */ |
| 3776 | memset(tx_ring->desc, 0, tx_ring->size); |
| 3777 | |
| 3778 | tx_ring->next_to_use = 0; |
| 3779 | tx_ring->next_to_clean = 0; |
| 3780 | |
Jesse Brandeburg | 9891ca7 | 2009-03-13 22:14:50 +0000 | [diff] [blame] | 3781 | if (tx_ring->head) |
| 3782 | writel(0, adapter->hw.hw_addr + tx_ring->head); |
| 3783 | if (tx_ring->tail) |
| 3784 | writel(0, adapter->hw.hw_addr + tx_ring->tail); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3785 | } |
| 3786 | |
| 3787 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3788 | * ixgbe_clean_all_rx_rings - Free Rx Buffers for all queues |
| 3789 | * @adapter: board private structure |
| 3790 | **/ |
| 3791 | static void ixgbe_clean_all_rx_rings(struct ixgbe_adapter *adapter) |
| 3792 | { |
| 3793 | int i; |
| 3794 | |
| 3795 | for (i = 0; i < adapter->num_rx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 3796 | ixgbe_clean_rx_ring(adapter, adapter->rx_ring[i]); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3797 | } |
| 3798 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3799 | /** |
| 3800 | * ixgbe_clean_all_tx_rings - Free Tx Buffers for all queues |
| 3801 | * @adapter: board private structure |
| 3802 | **/ |
| 3803 | static void ixgbe_clean_all_tx_rings(struct ixgbe_adapter *adapter) |
| 3804 | { |
| 3805 | int i; |
| 3806 | |
| 3807 | for (i = 0; i < adapter->num_tx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 3808 | ixgbe_clean_tx_ring(adapter, adapter->tx_ring[i]); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3809 | } |
| 3810 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3811 | void ixgbe_down(struct ixgbe_adapter *adapter) |
| 3812 | { |
| 3813 | struct net_device *netdev = adapter->netdev; |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3814 | struct ixgbe_hw *hw = &adapter->hw; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3815 | u32 rxctrl; |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3816 | u32 txdctl; |
| 3817 | int i, j; |
Peter Waskiewicz | b25ebfd | 2010-10-05 01:27:49 +0000 | [diff] [blame] | 3818 | int num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3819 | |
| 3820 | /* signal that we are down to the interrupt handler */ |
| 3821 | set_bit(__IXGBE_DOWN, &adapter->state); |
| 3822 | |
Greg Rose | 767081a | 2010-01-22 22:46:40 +0000 | [diff] [blame] | 3823 | /* disable receive for all VFs and wait one second */ |
| 3824 | if (adapter->num_vfs) { |
Greg Rose | 767081a | 2010-01-22 22:46:40 +0000 | [diff] [blame] | 3825 | /* ping all the active vfs to let them know we are going down */ |
| 3826 | ixgbe_ping_all_vfs(adapter); |
Greg Rose | 581d1aa | 2010-03-24 09:36:27 +0000 | [diff] [blame] | 3827 | |
Greg Rose | 767081a | 2010-01-22 22:46:40 +0000 | [diff] [blame] | 3828 | /* Disable all VFTE/VFRE TX/RX */ |
| 3829 | ixgbe_disable_tx_rx(adapter); |
Greg Rose | 581d1aa | 2010-03-24 09:36:27 +0000 | [diff] [blame] | 3830 | |
| 3831 | /* Mark all the VFs as inactive */ |
| 3832 | for (i = 0 ; i < adapter->num_vfs; i++) |
| 3833 | adapter->vfinfo[i].clear_to_send = 0; |
Greg Rose | 767081a | 2010-01-22 22:46:40 +0000 | [diff] [blame] | 3834 | } |
| 3835 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3836 | /* disable receives */ |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3837 | rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); |
| 3838 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3839 | |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3840 | IXGBE_WRITE_FLUSH(hw); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3841 | msleep(10); |
| 3842 | |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3843 | netif_tx_stop_all_queues(netdev); |
| 3844 | |
Don Skidmore | 0a1f87c | 2009-09-18 09:45:43 +0000 | [diff] [blame] | 3845 | clear_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state); |
| 3846 | del_timer_sync(&adapter->sfp_timer); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3847 | del_timer_sync(&adapter->watchdog_timer); |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 3848 | cancel_work_sync(&adapter->watchdog_task); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3849 | |
John Fastabend | c0dfb90 | 2010-04-27 02:13:39 +0000 | [diff] [blame] | 3850 | netif_carrier_off(netdev); |
| 3851 | netif_tx_disable(netdev); |
| 3852 | |
| 3853 | ixgbe_irq_disable(adapter); |
| 3854 | |
| 3855 | ixgbe_napi_disable_all(adapter); |
| 3856 | |
Peter Waskiewicz | b25ebfd | 2010-10-05 01:27:49 +0000 | [diff] [blame] | 3857 | /* Cleanup the affinity_hint CPU mask memory and callback */ |
| 3858 | for (i = 0; i < num_q_vectors; i++) { |
| 3859 | struct ixgbe_q_vector *q_vector = adapter->q_vector[i]; |
| 3860 | /* clear the affinity_mask in the IRQ descriptor */ |
| 3861 | irq_set_affinity_hint(adapter->msix_entries[i]. vector, NULL); |
| 3862 | /* release the CPU mask memory */ |
| 3863 | free_cpumask_var(q_vector->affinity_mask); |
| 3864 | } |
| 3865 | |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 3866 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || |
| 3867 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) |
| 3868 | cancel_work_sync(&adapter->fdir_reinit_task); |
| 3869 | |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 3870 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) |
| 3871 | cancel_work_sync(&adapter->check_overtemp_task); |
| 3872 | |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3873 | /* disable transmits in the hardware now that interrupts are off */ |
| 3874 | for (i = 0; i < adapter->num_tx_queues; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 3875 | j = adapter->tx_ring[i]->reg_idx; |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3876 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(j)); |
| 3877 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(j), |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3878 | (txdctl & ~IXGBE_TXDCTL_ENABLE)); |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3879 | } |
PJ Waskiewicz | 8851253 | 2009-03-13 22:15:10 +0000 | [diff] [blame] | 3880 | /* Disable the Tx DMA engine on 82599 */ |
| 3881 | if (hw->mac.type == ixgbe_mac_82599EB) |
| 3882 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3883 | (IXGBE_READ_REG(hw, IXGBE_DMATXCTL) & |
| 3884 | ~IXGBE_DMATXCTL_TE)); |
Jesse Brandeburg | 7f82187 | 2008-09-11 20:00:16 -0700 | [diff] [blame] | 3885 | |
John Fastabend | 9f756f0 | 2010-06-29 18:28:36 +0000 | [diff] [blame] | 3886 | /* power down the optics */ |
| 3887 | if (hw->phy.multispeed_fiber) |
| 3888 | hw->mac.ops.disable_tx_laser(hw); |
| 3889 | |
Peter Waskiewicz | 9a713e7 | 2010-02-10 16:07:54 +0000 | [diff] [blame] | 3890 | /* clear n-tuple filters that are cached */ |
| 3891 | ethtool_ntuple_flush(netdev); |
| 3892 | |
Paul Larson | 6f4a0e4 | 2008-06-24 17:00:56 -0700 | [diff] [blame] | 3893 | if (!pci_channel_offline(adapter->pdev)) |
| 3894 | ixgbe_reset(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3895 | ixgbe_clean_all_tx_rings(adapter); |
| 3896 | ixgbe_clean_all_rx_rings(adapter); |
| 3897 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 3898 | #ifdef CONFIG_IXGBE_DCA |
Jesse Brandeburg | 96b0e0f | 2008-08-26 04:27:21 -0700 | [diff] [blame] | 3899 | /* since we reset the hardware DCA settings were cleared */ |
Alexander Duyck | e35ec12 | 2009-05-21 13:07:12 +0000 | [diff] [blame] | 3900 | ixgbe_setup_dca(adapter); |
Jesse Brandeburg | 96b0e0f | 2008-08-26 04:27:21 -0700 | [diff] [blame] | 3901 | #endif |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3902 | } |
| 3903 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3904 | /** |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3905 | * ixgbe_poll - NAPI Rx polling callback |
| 3906 | * @napi: structure for representing this polling device |
| 3907 | * @budget: how many packets driver is allowed to clean |
| 3908 | * |
| 3909 | * This function is used for legacy and MSI, NAPI mode |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3910 | **/ |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3911 | static int ixgbe_poll(struct napi_struct *napi, int budget) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3912 | { |
Jesse Brandeburg | 9a1a69ad | 2009-03-13 22:14:10 +0000 | [diff] [blame] | 3913 | struct ixgbe_q_vector *q_vector = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 3914 | container_of(napi, struct ixgbe_q_vector, napi); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 3915 | struct ixgbe_adapter *adapter = q_vector->adapter; |
Jesse Brandeburg | 9a1a69ad | 2009-03-13 22:14:10 +0000 | [diff] [blame] | 3916 | int tx_clean_complete, work_done = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3917 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 3918 | #ifdef CONFIG_IXGBE_DCA |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 3919 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 3920 | ixgbe_update_tx_dca(adapter, adapter->tx_ring[0]); |
| 3921 | ixgbe_update_rx_dca(adapter, adapter->rx_ring[0]); |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 3922 | } |
| 3923 | #endif |
| 3924 | |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 3925 | tx_clean_complete = ixgbe_clean_tx_irq(q_vector, adapter->tx_ring[0]); |
| 3926 | ixgbe_clean_rx_irq(q_vector, adapter->rx_ring[0], &work_done, budget); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3927 | |
Jesse Brandeburg | 9a1a69ad | 2009-03-13 22:14:10 +0000 | [diff] [blame] | 3928 | if (!tx_clean_complete) |
David S. Miller | d2c7ddd | 2008-01-15 22:43:24 -0800 | [diff] [blame] | 3929 | work_done = budget; |
| 3930 | |
David S. Miller | 53e52c7 | 2008-01-07 21:06:12 -0800 | [diff] [blame] | 3931 | /* If budget not fully consumed, exit the polling mode */ |
| 3932 | if (work_done < budget) { |
Ben Hutchings | 288379f | 2009-01-19 16:43:59 -0800 | [diff] [blame] | 3933 | napi_complete(napi); |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 3934 | if (adapter->rx_itr_setting & 1) |
Ayyappan Veeraiyan | f494e8f | 2008-03-03 15:03:57 -0800 | [diff] [blame] | 3935 | ixgbe_set_itr(adapter); |
Ayyappan Veeraiyan | d4f8088 | 2008-02-01 15:58:41 -0800 | [diff] [blame] | 3936 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
Nelson, Shannon | 835462f | 2009-04-27 22:42:54 +0000 | [diff] [blame] | 3937 | ixgbe_irq_enable_queues(adapter, IXGBE_EIMS_RTX_QUEUE); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3938 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3939 | return work_done; |
| 3940 | } |
| 3941 | |
| 3942 | /** |
| 3943 | * ixgbe_tx_timeout - Respond to a Tx Hang |
| 3944 | * @netdev: network interface device structure |
| 3945 | **/ |
| 3946 | static void ixgbe_tx_timeout(struct net_device *netdev) |
| 3947 | { |
| 3948 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 3949 | |
| 3950 | /* Do the reset outside of interrupt context */ |
| 3951 | schedule_work(&adapter->reset_task); |
| 3952 | } |
| 3953 | |
| 3954 | static void ixgbe_reset_task(struct work_struct *work) |
| 3955 | { |
| 3956 | struct ixgbe_adapter *adapter; |
| 3957 | adapter = container_of(work, struct ixgbe_adapter, reset_task); |
| 3958 | |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 3959 | /* If we're already down or resetting, just bail */ |
| 3960 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
| 3961 | test_bit(__IXGBE_RESETTING, &adapter->state)) |
| 3962 | return; |
| 3963 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3964 | adapter->tx_timeout_count++; |
| 3965 | |
Taku Izumi | dcd79ae | 2010-04-27 14:39:53 +0000 | [diff] [blame] | 3966 | ixgbe_dump(adapter); |
| 3967 | netdev_err(adapter->netdev, "Reset adapter\n"); |
Ayyappan Veeraiyan | d4f8088 | 2008-02-01 15:58:41 -0800 | [diff] [blame] | 3968 | ixgbe_reinit_locked(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 3969 | } |
| 3970 | |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 3971 | #ifdef CONFIG_IXGBE_DCB |
| 3972 | static inline bool ixgbe_set_dcb_queues(struct ixgbe_adapter *adapter) |
Jesse Brandeburg | b980497 | 2008-09-11 20:00:29 -0700 | [diff] [blame] | 3973 | { |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 3974 | bool ret = false; |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 3975 | struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_DCB]; |
Jesse Brandeburg | b980497 | 2008-09-11 20:00:29 -0700 | [diff] [blame] | 3976 | |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 3977 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) |
| 3978 | return ret; |
| 3979 | |
| 3980 | f->mask = 0x7 << 3; |
| 3981 | adapter->num_rx_queues = f->indices; |
| 3982 | adapter->num_tx_queues = f->indices; |
| 3983 | ret = true; |
Jesse Brandeburg | b980497 | 2008-09-11 20:00:29 -0700 | [diff] [blame] | 3984 | |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 3985 | return ret; |
| 3986 | } |
| 3987 | #endif |
| 3988 | |
Jesse Brandeburg | 4df1046 | 2009-03-13 22:15:31 +0000 | [diff] [blame] | 3989 | /** |
| 3990 | * ixgbe_set_rss_queues: Allocate queues for RSS |
| 3991 | * @adapter: board private structure to initialize |
| 3992 | * |
| 3993 | * This is our "base" multiqueue mode. RSS (Receive Side Scaling) will try |
| 3994 | * to allocate one Rx queue per CPU, and if available, one Tx queue per CPU. |
| 3995 | * |
| 3996 | **/ |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 3997 | static inline bool ixgbe_set_rss_queues(struct ixgbe_adapter *adapter) |
| 3998 | { |
| 3999 | bool ret = false; |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 4000 | struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_RSS]; |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4001 | |
| 4002 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { |
Jesse Brandeburg | 0cefafa | 2009-05-19 09:19:11 +0000 | [diff] [blame] | 4003 | f->mask = 0xF; |
| 4004 | adapter->num_rx_queues = f->indices; |
| 4005 | adapter->num_tx_queues = f->indices; |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4006 | ret = true; |
| 4007 | } else { |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4008 | ret = false; |
| 4009 | } |
| 4010 | |
| 4011 | return ret; |
| 4012 | } |
| 4013 | |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4014 | /** |
| 4015 | * ixgbe_set_fdir_queues: Allocate queues for Flow Director |
| 4016 | * @adapter: board private structure to initialize |
| 4017 | * |
| 4018 | * Flow Director is an advanced Rx filter, attempting to get Rx flows back |
| 4019 | * to the original CPU that initiated the Tx session. This runs in addition |
| 4020 | * to RSS, so if a packet doesn't match an FDIR filter, we can still spread the |
| 4021 | * Rx load across CPUs using RSS. |
| 4022 | * |
| 4023 | **/ |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4024 | static inline bool ixgbe_set_fdir_queues(struct ixgbe_adapter *adapter) |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4025 | { |
| 4026 | bool ret = false; |
| 4027 | struct ixgbe_ring_feature *f_fdir = &adapter->ring_feature[RING_F_FDIR]; |
| 4028 | |
| 4029 | f_fdir->indices = min((int)num_online_cpus(), f_fdir->indices); |
| 4030 | f_fdir->mask = 0; |
| 4031 | |
| 4032 | /* Flow Director must have RSS enabled */ |
| 4033 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED && |
| 4034 | ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || |
| 4035 | (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)))) { |
| 4036 | adapter->num_tx_queues = f_fdir->indices; |
| 4037 | adapter->num_rx_queues = f_fdir->indices; |
| 4038 | ret = true; |
| 4039 | } else { |
| 4040 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; |
| 4041 | adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; |
| 4042 | } |
| 4043 | return ret; |
| 4044 | } |
| 4045 | |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4046 | #ifdef IXGBE_FCOE |
| 4047 | /** |
| 4048 | * ixgbe_set_fcoe_queues: Allocate queues for Fiber Channel over Ethernet (FCoE) |
| 4049 | * @adapter: board private structure to initialize |
| 4050 | * |
| 4051 | * FCoE RX FCRETA can use up to 8 rx queues for up to 8 different exchanges. |
| 4052 | * The ring feature mask is not used as a mask for FCoE, as it can take any 8 |
| 4053 | * rx queues out of the max number of rx queues, instead, it is used as the |
| 4054 | * index of the first rx queue used by FCoE. |
| 4055 | * |
| 4056 | **/ |
| 4057 | static inline bool ixgbe_set_fcoe_queues(struct ixgbe_adapter *adapter) |
| 4058 | { |
| 4059 | bool ret = false; |
| 4060 | struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_FCOE]; |
| 4061 | |
| 4062 | f->indices = min((int)num_online_cpus(), f->indices); |
| 4063 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4064 | adapter->num_rx_queues = 1; |
| 4065 | adapter->num_tx_queues = 1; |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4066 | #ifdef CONFIG_IXGBE_DCB |
| 4067 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 4068 | e_info(probe, "FCoE enabled with DCB\n"); |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4069 | ixgbe_set_dcb_queues(adapter); |
| 4070 | } |
| 4071 | #endif |
| 4072 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 4073 | e_info(probe, "FCoE enabled with RSS\n"); |
Yi Zou | 8faa2a7 | 2009-07-09 02:29:50 +0000 | [diff] [blame] | 4074 | if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) || |
| 4075 | (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) |
| 4076 | ixgbe_set_fdir_queues(adapter); |
| 4077 | else |
| 4078 | ixgbe_set_rss_queues(adapter); |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4079 | } |
| 4080 | /* adding FCoE rx rings to the end */ |
| 4081 | f->mask = adapter->num_rx_queues; |
| 4082 | adapter->num_rx_queues += f->indices; |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4083 | adapter->num_tx_queues += f->indices; |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4084 | |
| 4085 | ret = true; |
| 4086 | } |
| 4087 | |
| 4088 | return ret; |
| 4089 | } |
| 4090 | |
| 4091 | #endif /* IXGBE_FCOE */ |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 4092 | /** |
| 4093 | * ixgbe_set_sriov_queues: Allocate queues for IOV use |
| 4094 | * @adapter: board private structure to initialize |
| 4095 | * |
| 4096 | * IOV doesn't actually use anything, so just NAK the |
| 4097 | * request for now and let the other queue routines |
| 4098 | * figure out what to do. |
| 4099 | */ |
| 4100 | static inline bool ixgbe_set_sriov_queues(struct ixgbe_adapter *adapter) |
| 4101 | { |
| 4102 | return false; |
| 4103 | } |
| 4104 | |
Jesse Brandeburg | 4df1046 | 2009-03-13 22:15:31 +0000 | [diff] [blame] | 4105 | /* |
| 4106 | * ixgbe_set_num_queues: Allocate queues for device, feature dependant |
| 4107 | * @adapter: board private structure to initialize |
| 4108 | * |
| 4109 | * This is the top level queue allocation routine. The order here is very |
| 4110 | * important, starting with the "most" number of features turned on at once, |
| 4111 | * and ending with the smallest set of features. This way large combinations |
| 4112 | * can be allocated if they're turned on, and smaller combinations are the |
| 4113 | * fallthrough conditions. |
| 4114 | * |
| 4115 | **/ |
Ben Hutchings | 847f53f | 2010-09-27 08:28:56 +0000 | [diff] [blame] | 4116 | static int ixgbe_set_num_queues(struct ixgbe_adapter *adapter) |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4117 | { |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 4118 | /* Start with base case */ |
| 4119 | adapter->num_rx_queues = 1; |
| 4120 | adapter->num_tx_queues = 1; |
| 4121 | adapter->num_rx_pools = adapter->num_rx_queues; |
| 4122 | adapter->num_rx_queues_per_pool = 1; |
| 4123 | |
| 4124 | if (ixgbe_set_sriov_queues(adapter)) |
Ben Hutchings | 847f53f | 2010-09-27 08:28:56 +0000 | [diff] [blame] | 4125 | goto done; |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 4126 | |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4127 | #ifdef IXGBE_FCOE |
| 4128 | if (ixgbe_set_fcoe_queues(adapter)) |
| 4129 | goto done; |
| 4130 | |
| 4131 | #endif /* IXGBE_FCOE */ |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4132 | #ifdef CONFIG_IXGBE_DCB |
| 4133 | if (ixgbe_set_dcb_queues(adapter)) |
Wu Fengguang | af22ab1 | 2009-04-14 21:54:07 -0700 | [diff] [blame] | 4134 | goto done; |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4135 | |
| 4136 | #endif |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4137 | if (ixgbe_set_fdir_queues(adapter)) |
| 4138 | goto done; |
| 4139 | |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4140 | if (ixgbe_set_rss_queues(adapter)) |
Wu Fengguang | af22ab1 | 2009-04-14 21:54:07 -0700 | [diff] [blame] | 4141 | goto done; |
| 4142 | |
| 4143 | /* fallback to base case */ |
| 4144 | adapter->num_rx_queues = 1; |
| 4145 | adapter->num_tx_queues = 1; |
| 4146 | |
| 4147 | done: |
Ben Hutchings | 847f53f | 2010-09-27 08:28:56 +0000 | [diff] [blame] | 4148 | /* Notify the stack of the (possibly) reduced queue counts. */ |
John Fastabend | f0796d5 | 2010-07-01 13:21:57 +0000 | [diff] [blame] | 4149 | netif_set_real_num_tx_queues(adapter->netdev, adapter->num_tx_queues); |
Ben Hutchings | 847f53f | 2010-09-27 08:28:56 +0000 | [diff] [blame] | 4150 | return netif_set_real_num_rx_queues(adapter->netdev, |
| 4151 | adapter->num_rx_queues); |
Jesse Brandeburg | b980497 | 2008-09-11 20:00:29 -0700 | [diff] [blame] | 4152 | } |
| 4153 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4154 | static void ixgbe_acquire_msix_vectors(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4155 | int vectors) |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4156 | { |
| 4157 | int err, vector_threshold; |
| 4158 | |
| 4159 | /* We'll want at least 3 (vector_threshold): |
| 4160 | * 1) TxQ[0] Cleanup |
| 4161 | * 2) RxQ[0] Cleanup |
| 4162 | * 3) Other (Link Status Change, etc.) |
| 4163 | * 4) TCP Timer (optional) |
| 4164 | */ |
| 4165 | vector_threshold = MIN_MSIX_COUNT; |
| 4166 | |
| 4167 | /* The more we get, the more we will assign to Tx/Rx Cleanup |
| 4168 | * for the separate queues...where Rx Cleanup >= Tx Cleanup. |
| 4169 | * Right now, we simply care about how many we'll get; we'll |
| 4170 | * set them up later while requesting irq's. |
| 4171 | */ |
| 4172 | while (vectors >= vector_threshold) { |
| 4173 | err = pci_enable_msix(adapter->pdev, adapter->msix_entries, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4174 | vectors); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4175 | if (!err) /* Success in acquiring all requested vectors. */ |
| 4176 | break; |
| 4177 | else if (err < 0) |
| 4178 | vectors = 0; /* Nasty failure, quit now */ |
| 4179 | else /* err == number of vectors we should try again with */ |
| 4180 | vectors = err; |
| 4181 | } |
| 4182 | |
| 4183 | if (vectors < vector_threshold) { |
| 4184 | /* Can't allocate enough MSI-X interrupts? Oh well. |
| 4185 | * This just means we'll go with either a single MSI |
| 4186 | * vector or fall back to legacy interrupts. |
| 4187 | */ |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 4188 | netif_printk(adapter, hw, KERN_DEBUG, adapter->netdev, |
| 4189 | "Unable to allocate MSI-X interrupts\n"); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4190 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; |
| 4191 | kfree(adapter->msix_entries); |
| 4192 | adapter->msix_entries = NULL; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4193 | } else { |
| 4194 | adapter->flags |= IXGBE_FLAG_MSIX_ENABLED; /* Woot! */ |
Peter P Waskiewicz Jr | eb7f139 | 2009-02-01 01:18:58 -0800 | [diff] [blame] | 4195 | /* |
| 4196 | * Adjust for only the vectors we'll use, which is minimum |
| 4197 | * of max_msix_q_vectors + NON_Q_VECTORS, or the number of |
| 4198 | * vectors we were allocated. |
| 4199 | */ |
| 4200 | adapter->num_msix_vectors = min(vectors, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4201 | adapter->max_msix_q_vectors + NON_Q_VECTORS); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4202 | } |
| 4203 | } |
| 4204 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4205 | /** |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4206 | * ixgbe_cache_ring_rss - Descriptor ring to register mapping for RSS |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4207 | * @adapter: board private structure to initialize |
| 4208 | * |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4209 | * Cache the descriptor ring offsets for RSS to the assigned rings. |
| 4210 | * |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4211 | **/ |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4212 | static inline bool ixgbe_cache_ring_rss(struct ixgbe_adapter *adapter) |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4213 | { |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4214 | int i; |
| 4215 | bool ret = false; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4216 | |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4217 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { |
| 4218 | for (i = 0; i < adapter->num_rx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4219 | adapter->rx_ring[i]->reg_idx = i; |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4220 | for (i = 0; i < adapter->num_tx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4221 | adapter->tx_ring[i]->reg_idx = i; |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4222 | ret = true; |
| 4223 | } else { |
| 4224 | ret = false; |
| 4225 | } |
| 4226 | |
| 4227 | return ret; |
| 4228 | } |
| 4229 | |
| 4230 | #ifdef CONFIG_IXGBE_DCB |
| 4231 | /** |
| 4232 | * ixgbe_cache_ring_dcb - Descriptor ring to register mapping for DCB |
| 4233 | * @adapter: board private structure to initialize |
| 4234 | * |
| 4235 | * Cache the descriptor ring offsets for DCB to the assigned rings. |
| 4236 | * |
| 4237 | **/ |
| 4238 | static inline bool ixgbe_cache_ring_dcb(struct ixgbe_adapter *adapter) |
| 4239 | { |
| 4240 | int i; |
| 4241 | bool ret = false; |
| 4242 | int dcb_i = adapter->ring_feature[RING_F_DCB].indices; |
| 4243 | |
| 4244 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
| 4245 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4246 | /* the number of queues is assumed to be symmetric */ |
| 4247 | for (i = 0; i < dcb_i; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4248 | adapter->rx_ring[i]->reg_idx = i << 3; |
| 4249 | adapter->tx_ring[i]->reg_idx = i << 2; |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4250 | } |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4251 | ret = true; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 4252 | } else if (adapter->hw.mac.type == ixgbe_mac_82599EB) { |
PJ Waskiewicz | f92ef20 | 2009-04-16 15:00:20 +0000 | [diff] [blame] | 4253 | if (dcb_i == 8) { |
| 4254 | /* |
| 4255 | * Tx TC0 starts at: descriptor queue 0 |
| 4256 | * Tx TC1 starts at: descriptor queue 32 |
| 4257 | * Tx TC2 starts at: descriptor queue 64 |
| 4258 | * Tx TC3 starts at: descriptor queue 80 |
| 4259 | * Tx TC4 starts at: descriptor queue 96 |
| 4260 | * Tx TC5 starts at: descriptor queue 104 |
| 4261 | * Tx TC6 starts at: descriptor queue 112 |
| 4262 | * Tx TC7 starts at: descriptor queue 120 |
| 4263 | * |
| 4264 | * Rx TC0-TC7 are offset by 16 queues each |
| 4265 | */ |
| 4266 | for (i = 0; i < 3; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4267 | adapter->tx_ring[i]->reg_idx = i << 5; |
| 4268 | adapter->rx_ring[i]->reg_idx = i << 4; |
PJ Waskiewicz | f92ef20 | 2009-04-16 15:00:20 +0000 | [diff] [blame] | 4269 | } |
| 4270 | for ( ; i < 5; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4271 | adapter->tx_ring[i]->reg_idx = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4272 | ((i + 2) << 4); |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4273 | adapter->rx_ring[i]->reg_idx = i << 4; |
PJ Waskiewicz | f92ef20 | 2009-04-16 15:00:20 +0000 | [diff] [blame] | 4274 | } |
| 4275 | for ( ; i < dcb_i; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4276 | adapter->tx_ring[i]->reg_idx = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4277 | ((i + 8) << 3); |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4278 | adapter->rx_ring[i]->reg_idx = i << 4; |
PJ Waskiewicz | f92ef20 | 2009-04-16 15:00:20 +0000 | [diff] [blame] | 4279 | } |
| 4280 | |
| 4281 | ret = true; |
| 4282 | } else if (dcb_i == 4) { |
| 4283 | /* |
| 4284 | * Tx TC0 starts at: descriptor queue 0 |
| 4285 | * Tx TC1 starts at: descriptor queue 64 |
| 4286 | * Tx TC2 starts at: descriptor queue 96 |
| 4287 | * Tx TC3 starts at: descriptor queue 112 |
| 4288 | * |
| 4289 | * Rx TC0-TC3 are offset by 32 queues each |
| 4290 | */ |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4291 | adapter->tx_ring[0]->reg_idx = 0; |
| 4292 | adapter->tx_ring[1]->reg_idx = 64; |
| 4293 | adapter->tx_ring[2]->reg_idx = 96; |
| 4294 | adapter->tx_ring[3]->reg_idx = 112; |
PJ Waskiewicz | f92ef20 | 2009-04-16 15:00:20 +0000 | [diff] [blame] | 4295 | for (i = 0 ; i < dcb_i; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4296 | adapter->rx_ring[i]->reg_idx = i << 5; |
PJ Waskiewicz | f92ef20 | 2009-04-16 15:00:20 +0000 | [diff] [blame] | 4297 | |
| 4298 | ret = true; |
| 4299 | } else { |
| 4300 | ret = false; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 4301 | } |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4302 | } else { |
| 4303 | ret = false; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4304 | } |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4305 | } else { |
| 4306 | ret = false; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4307 | } |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4308 | |
| 4309 | return ret; |
| 4310 | } |
| 4311 | #endif |
| 4312 | |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4313 | /** |
| 4314 | * ixgbe_cache_ring_fdir - Descriptor ring to register mapping for Flow Director |
| 4315 | * @adapter: board private structure to initialize |
| 4316 | * |
| 4317 | * Cache the descriptor ring offsets for Flow Director to the assigned rings. |
| 4318 | * |
| 4319 | **/ |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4320 | static inline bool ixgbe_cache_ring_fdir(struct ixgbe_adapter *adapter) |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4321 | { |
| 4322 | int i; |
| 4323 | bool ret = false; |
| 4324 | |
| 4325 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED && |
| 4326 | ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) || |
| 4327 | (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE))) { |
| 4328 | for (i = 0; i < adapter->num_rx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4329 | adapter->rx_ring[i]->reg_idx = i; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4330 | for (i = 0; i < adapter->num_tx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4331 | adapter->tx_ring[i]->reg_idx = i; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4332 | ret = true; |
| 4333 | } |
| 4334 | |
| 4335 | return ret; |
| 4336 | } |
| 4337 | |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4338 | #ifdef IXGBE_FCOE |
| 4339 | /** |
| 4340 | * ixgbe_cache_ring_fcoe - Descriptor ring to register mapping for the FCoE |
| 4341 | * @adapter: board private structure to initialize |
| 4342 | * |
| 4343 | * Cache the descriptor ring offsets for FCoE mode to the assigned rings. |
| 4344 | * |
| 4345 | */ |
| 4346 | static inline bool ixgbe_cache_ring_fcoe(struct ixgbe_adapter *adapter) |
| 4347 | { |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4348 | int i, fcoe_rx_i = 0, fcoe_tx_i = 0; |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4349 | bool ret = false; |
| 4350 | struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_FCOE]; |
| 4351 | |
| 4352 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { |
| 4353 | #ifdef CONFIG_IXGBE_DCB |
| 4354 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4355 | struct ixgbe_fcoe *fcoe = &adapter->fcoe; |
| 4356 | |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4357 | ixgbe_cache_ring_dcb(adapter); |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4358 | /* find out queues in TC for FCoE */ |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4359 | fcoe_rx_i = adapter->rx_ring[fcoe->tc]->reg_idx + 1; |
| 4360 | fcoe_tx_i = adapter->tx_ring[fcoe->tc]->reg_idx + 1; |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4361 | /* |
| 4362 | * In 82599, the number of Tx queues for each traffic |
| 4363 | * class for both 8-TC and 4-TC modes are: |
| 4364 | * TCs : TC0 TC1 TC2 TC3 TC4 TC5 TC6 TC7 |
| 4365 | * 8 TCs: 32 32 16 16 8 8 8 8 |
| 4366 | * 4 TCs: 64 64 32 32 |
| 4367 | * We have max 8 queues for FCoE, where 8 the is |
| 4368 | * FCoE redirection table size. If TC for FCoE is |
| 4369 | * less than or equal to TC3, we have enough queues |
| 4370 | * to add max of 8 queues for FCoE, so we start FCoE |
| 4371 | * tx descriptor from the next one, i.e., reg_idx + 1. |
| 4372 | * If TC for FCoE is above TC3, implying 8 TC mode, |
| 4373 | * and we need 8 for FCoE, we have to take all queues |
| 4374 | * in that traffic class for FCoE. |
| 4375 | */ |
| 4376 | if ((f->indices == IXGBE_FCRETA_SIZE) && (fcoe->tc > 3)) |
| 4377 | fcoe_tx_i--; |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4378 | } |
| 4379 | #endif /* CONFIG_IXGBE_DCB */ |
| 4380 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { |
Yi Zou | 8faa2a7 | 2009-07-09 02:29:50 +0000 | [diff] [blame] | 4381 | if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) || |
| 4382 | (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) |
| 4383 | ixgbe_cache_ring_fdir(adapter); |
| 4384 | else |
| 4385 | ixgbe_cache_ring_rss(adapter); |
| 4386 | |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4387 | fcoe_rx_i = f->mask; |
| 4388 | fcoe_tx_i = f->mask; |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4389 | } |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4390 | for (i = 0; i < f->indices; i++, fcoe_rx_i++, fcoe_tx_i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4391 | adapter->rx_ring[f->mask + i]->reg_idx = fcoe_rx_i; |
| 4392 | adapter->tx_ring[f->mask + i]->reg_idx = fcoe_tx_i; |
Yi Zou | 8de8b2e | 2009-09-03 14:55:50 +0000 | [diff] [blame] | 4393 | } |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4394 | ret = true; |
| 4395 | } |
| 4396 | return ret; |
| 4397 | } |
| 4398 | |
| 4399 | #endif /* IXGBE_FCOE */ |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4400 | /** |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 4401 | * ixgbe_cache_ring_sriov - Descriptor ring to register mapping for sriov |
| 4402 | * @adapter: board private structure to initialize |
| 4403 | * |
| 4404 | * SR-IOV doesn't use any descriptor rings but changes the default if |
| 4405 | * no other mapping is used. |
| 4406 | * |
| 4407 | */ |
| 4408 | static inline bool ixgbe_cache_ring_sriov(struct ixgbe_adapter *adapter) |
| 4409 | { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4410 | adapter->rx_ring[0]->reg_idx = adapter->num_vfs * 2; |
| 4411 | adapter->tx_ring[0]->reg_idx = adapter->num_vfs * 2; |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 4412 | if (adapter->num_vfs) |
| 4413 | return true; |
| 4414 | else |
| 4415 | return false; |
| 4416 | } |
| 4417 | |
| 4418 | /** |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4419 | * ixgbe_cache_ring_register - Descriptor ring to register mapping |
| 4420 | * @adapter: board private structure to initialize |
| 4421 | * |
| 4422 | * Once we know the feature-set enabled for the device, we'll cache |
| 4423 | * the register offset the descriptor ring is assigned to. |
| 4424 | * |
| 4425 | * Note, the order the various feature calls is important. It must start with |
| 4426 | * the "most" features enabled at the same time, then trickle down to the |
| 4427 | * least amount of features turned on at once. |
| 4428 | **/ |
| 4429 | static void ixgbe_cache_ring_register(struct ixgbe_adapter *adapter) |
| 4430 | { |
| 4431 | /* start with default case */ |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4432 | adapter->rx_ring[0]->reg_idx = 0; |
| 4433 | adapter->tx_ring[0]->reg_idx = 0; |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4434 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 4435 | if (ixgbe_cache_ring_sriov(adapter)) |
| 4436 | return; |
| 4437 | |
Yi Zou | 0331a83 | 2009-05-17 12:33:52 +0000 | [diff] [blame] | 4438 | #ifdef IXGBE_FCOE |
| 4439 | if (ixgbe_cache_ring_fcoe(adapter)) |
| 4440 | return; |
| 4441 | |
| 4442 | #endif /* IXGBE_FCOE */ |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4443 | #ifdef CONFIG_IXGBE_DCB |
| 4444 | if (ixgbe_cache_ring_dcb(adapter)) |
| 4445 | return; |
| 4446 | |
| 4447 | #endif |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4448 | if (ixgbe_cache_ring_fdir(adapter)) |
| 4449 | return; |
| 4450 | |
Peter P Waskiewicz Jr | bc97114 | 2009-02-05 23:53:59 -0800 | [diff] [blame] | 4451 | if (ixgbe_cache_ring_rss(adapter)) |
| 4452 | return; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4453 | } |
| 4454 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4455 | /** |
| 4456 | * ixgbe_alloc_queues - Allocate memory for all rings |
| 4457 | * @adapter: board private structure to initialize |
| 4458 | * |
| 4459 | * We allocate one ring per queue at run-time since we don't know the |
Jesse Brandeburg | 4df1046 | 2009-03-13 22:15:31 +0000 | [diff] [blame] | 4460 | * number of queues at compile-time. The polling_netdev array is |
| 4461 | * intended for Multiqueue, but should work fine with a single queue. |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4462 | **/ |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4463 | static int ixgbe_alloc_queues(struct ixgbe_adapter *adapter) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4464 | { |
| 4465 | int i; |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4466 | int orig_node = adapter->node; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4467 | |
| 4468 | for (i = 0; i < adapter->num_tx_queues; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4469 | struct ixgbe_ring *ring = adapter->tx_ring[i]; |
| 4470 | if (orig_node == -1) { |
| 4471 | int cur_node = next_online_node(adapter->node); |
| 4472 | if (cur_node == MAX_NUMNODES) |
| 4473 | cur_node = first_online_node; |
| 4474 | adapter->node = cur_node; |
| 4475 | } |
| 4476 | ring = kzalloc_node(sizeof(struct ixgbe_ring), GFP_KERNEL, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4477 | adapter->node); |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4478 | if (!ring) |
| 4479 | ring = kzalloc(sizeof(struct ixgbe_ring), GFP_KERNEL); |
| 4480 | if (!ring) |
| 4481 | goto err_tx_ring_allocation; |
| 4482 | ring->count = adapter->tx_ring_count; |
| 4483 | ring->queue_index = i; |
| 4484 | ring->numa_node = adapter->node; |
| 4485 | |
| 4486 | adapter->tx_ring[i] = ring; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4487 | } |
Jesse Brandeburg | b980497 | 2008-09-11 20:00:29 -0700 | [diff] [blame] | 4488 | |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4489 | /* Restore the adapter's original node */ |
| 4490 | adapter->node = orig_node; |
| 4491 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4492 | for (i = 0; i < adapter->num_rx_queues; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4493 | struct ixgbe_ring *ring = adapter->rx_ring[i]; |
| 4494 | if (orig_node == -1) { |
| 4495 | int cur_node = next_online_node(adapter->node); |
| 4496 | if (cur_node == MAX_NUMNODES) |
| 4497 | cur_node = first_online_node; |
| 4498 | adapter->node = cur_node; |
| 4499 | } |
| 4500 | ring = kzalloc_node(sizeof(struct ixgbe_ring), GFP_KERNEL, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4501 | adapter->node); |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4502 | if (!ring) |
| 4503 | ring = kzalloc(sizeof(struct ixgbe_ring), GFP_KERNEL); |
| 4504 | if (!ring) |
| 4505 | goto err_rx_ring_allocation; |
| 4506 | ring->count = adapter->rx_ring_count; |
| 4507 | ring->queue_index = i; |
| 4508 | ring->numa_node = adapter->node; |
| 4509 | |
| 4510 | adapter->rx_ring[i] = ring; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4511 | } |
| 4512 | |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4513 | /* Restore the adapter's original node */ |
| 4514 | adapter->node = orig_node; |
| 4515 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4516 | ixgbe_cache_ring_register(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4517 | |
| 4518 | return 0; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4519 | |
| 4520 | err_rx_ring_allocation: |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4521 | for (i = 0; i < adapter->num_tx_queues; i++) |
| 4522 | kfree(adapter->tx_ring[i]); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4523 | err_tx_ring_allocation: |
| 4524 | return -ENOMEM; |
| 4525 | } |
| 4526 | |
| 4527 | /** |
| 4528 | * ixgbe_set_interrupt_capability - set MSI-X or MSI if supported |
| 4529 | * @adapter: board private structure to initialize |
| 4530 | * |
| 4531 | * Attempt to configure the interrupts using the best available |
| 4532 | * capabilities of the hardware and the kernel. |
| 4533 | **/ |
Al Viro | feea6a5 | 2008-11-27 15:34:07 -0800 | [diff] [blame] | 4534 | static int ixgbe_set_interrupt_capability(struct ixgbe_adapter *adapter) |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4535 | { |
PJ Waskiewicz | 8be0e46 | 2009-03-31 21:34:05 +0000 | [diff] [blame] | 4536 | struct ixgbe_hw *hw = &adapter->hw; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4537 | int err = 0; |
| 4538 | int vector, v_budget; |
| 4539 | |
| 4540 | /* |
| 4541 | * It's easy to be greedy for MSI-X vectors, but it really |
| 4542 | * doesn't do us much good if we have a lot more vectors |
| 4543 | * than CPU's. So let's be conservative and only ask for |
PJ Waskiewicz | 342bde1 | 2009-11-12 23:50:43 +0000 | [diff] [blame] | 4544 | * (roughly) the same number of vectors as there are CPU's. |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4545 | */ |
| 4546 | v_budget = min(adapter->num_rx_queues + adapter->num_tx_queues, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4547 | (int)num_online_cpus()) + NON_Q_VECTORS; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4548 | |
| 4549 | /* |
| 4550 | * At the same time, hardware can only support a maximum of |
PJ Waskiewicz | 8be0e46 | 2009-03-31 21:34:05 +0000 | [diff] [blame] | 4551 | * hw.mac->max_msix_vectors vectors. With features |
| 4552 | * such as RSS and VMDq, we can easily surpass the number of Rx and Tx |
| 4553 | * descriptor queues supported by our device. Thus, we cap it off in |
| 4554 | * those rare cases where the cpu count also exceeds our vector limit. |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4555 | */ |
PJ Waskiewicz | 8be0e46 | 2009-03-31 21:34:05 +0000 | [diff] [blame] | 4556 | v_budget = min(v_budget, (int)hw->mac.max_msix_vectors); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4557 | |
| 4558 | /* A failure in MSI-X entry allocation isn't fatal, but it does |
| 4559 | * mean we disable MSI-X capabilities of the adapter. */ |
| 4560 | adapter->msix_entries = kcalloc(v_budget, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4561 | sizeof(struct msix_entry), GFP_KERNEL); |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4562 | if (adapter->msix_entries) { |
| 4563 | for (vector = 0; vector < v_budget; vector++) |
| 4564 | adapter->msix_entries[vector].entry = vector; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4565 | |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4566 | ixgbe_acquire_msix_vectors(adapter, v_budget); |
| 4567 | |
| 4568 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
| 4569 | goto out; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4570 | } |
David S. Miller | 26d2784 | 2010-05-03 15:18:22 -0700 | [diff] [blame] | 4571 | |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4572 | adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; |
| 4573 | adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4574 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; |
| 4575 | adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; |
| 4576 | adapter->atr_sample_rate = 0; |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 4577 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
| 4578 | ixgbe_disable_sriov(adapter); |
| 4579 | |
Ben Hutchings | 847f53f | 2010-09-27 08:28:56 +0000 | [diff] [blame] | 4580 | err = ixgbe_set_num_queues(adapter); |
| 4581 | if (err) |
| 4582 | return err; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4583 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4584 | err = pci_enable_msi(adapter->pdev); |
| 4585 | if (!err) { |
| 4586 | adapter->flags |= IXGBE_FLAG_MSI_ENABLED; |
| 4587 | } else { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 4588 | netif_printk(adapter, hw, KERN_DEBUG, adapter->netdev, |
| 4589 | "Unable to allocate MSI interrupt, " |
| 4590 | "falling back to legacy. Error: %d\n", err); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4591 | /* reset err */ |
| 4592 | err = 0; |
| 4593 | } |
| 4594 | |
| 4595 | out: |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4596 | return err; |
| 4597 | } |
| 4598 | |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4599 | /** |
| 4600 | * ixgbe_alloc_q_vectors - Allocate memory for interrupt vectors |
| 4601 | * @adapter: board private structure to initialize |
| 4602 | * |
| 4603 | * We allocate one q_vector per queue interrupt. If allocation fails we |
| 4604 | * return -ENOMEM. |
| 4605 | **/ |
| 4606 | static int ixgbe_alloc_q_vectors(struct ixgbe_adapter *adapter) |
| 4607 | { |
| 4608 | int q_idx, num_q_vectors; |
| 4609 | struct ixgbe_q_vector *q_vector; |
| 4610 | int napi_vectors; |
| 4611 | int (*poll)(struct napi_struct *, int); |
| 4612 | |
| 4613 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
| 4614 | num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
| 4615 | napi_vectors = adapter->num_rx_queues; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 4616 | poll = &ixgbe_clean_rxtx_many; |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4617 | } else { |
| 4618 | num_q_vectors = 1; |
| 4619 | napi_vectors = 1; |
| 4620 | poll = &ixgbe_poll; |
| 4621 | } |
| 4622 | |
| 4623 | for (q_idx = 0; q_idx < num_q_vectors; q_idx++) { |
Jesse Brandeburg | 1a6c14a | 2010-02-03 14:18:50 +0000 | [diff] [blame] | 4624 | q_vector = kzalloc_node(sizeof(struct ixgbe_q_vector), |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4625 | GFP_KERNEL, adapter->node); |
Jesse Brandeburg | 1a6c14a | 2010-02-03 14:18:50 +0000 | [diff] [blame] | 4626 | if (!q_vector) |
| 4627 | q_vector = kzalloc(sizeof(struct ixgbe_q_vector), |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4628 | GFP_KERNEL); |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4629 | if (!q_vector) |
| 4630 | goto err_out; |
| 4631 | q_vector->adapter = adapter; |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 4632 | if (q_vector->txr_count && !q_vector->rxr_count) |
| 4633 | q_vector->eitr = adapter->tx_eitr_param; |
| 4634 | else |
| 4635 | q_vector->eitr = adapter->rx_eitr_param; |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 4636 | q_vector->v_idx = q_idx; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 4637 | netif_napi_add(adapter->netdev, &q_vector->napi, (*poll), 64); |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4638 | adapter->q_vector[q_idx] = q_vector; |
| 4639 | } |
| 4640 | |
| 4641 | return 0; |
| 4642 | |
| 4643 | err_out: |
| 4644 | while (q_idx) { |
| 4645 | q_idx--; |
| 4646 | q_vector = adapter->q_vector[q_idx]; |
| 4647 | netif_napi_del(&q_vector->napi); |
| 4648 | kfree(q_vector); |
| 4649 | adapter->q_vector[q_idx] = NULL; |
| 4650 | } |
| 4651 | return -ENOMEM; |
| 4652 | } |
| 4653 | |
| 4654 | /** |
| 4655 | * ixgbe_free_q_vectors - Free memory allocated for interrupt vectors |
| 4656 | * @adapter: board private structure to initialize |
| 4657 | * |
| 4658 | * This function frees the memory allocated to the q_vectors. In addition if |
| 4659 | * NAPI is enabled it will delete any references to the NAPI struct prior |
| 4660 | * to freeing the q_vector. |
| 4661 | **/ |
| 4662 | static void ixgbe_free_q_vectors(struct ixgbe_adapter *adapter) |
| 4663 | { |
| 4664 | int q_idx, num_q_vectors; |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4665 | |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 4666 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4667 | num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 4668 | else |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4669 | num_q_vectors = 1; |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4670 | |
| 4671 | for (q_idx = 0; q_idx < num_q_vectors; q_idx++) { |
| 4672 | struct ixgbe_q_vector *q_vector = adapter->q_vector[q_idx]; |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4673 | adapter->q_vector[q_idx] = NULL; |
Alexander Duyck | 91281fd | 2009-06-04 16:00:27 +0000 | [diff] [blame] | 4674 | netif_napi_del(&q_vector->napi); |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4675 | kfree(q_vector); |
| 4676 | } |
| 4677 | } |
| 4678 | |
Don Skidmore | 7b25cdb | 2009-08-25 04:47:32 +0000 | [diff] [blame] | 4679 | static void ixgbe_reset_interrupt_capability(struct ixgbe_adapter *adapter) |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4680 | { |
| 4681 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
| 4682 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; |
| 4683 | pci_disable_msix(adapter->pdev); |
| 4684 | kfree(adapter->msix_entries); |
| 4685 | adapter->msix_entries = NULL; |
| 4686 | } else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) { |
| 4687 | adapter->flags &= ~IXGBE_FLAG_MSI_ENABLED; |
| 4688 | pci_disable_msi(adapter->pdev); |
| 4689 | } |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4690 | } |
| 4691 | |
| 4692 | /** |
| 4693 | * ixgbe_init_interrupt_scheme - Determine proper interrupt scheme |
| 4694 | * @adapter: board private structure to initialize |
| 4695 | * |
| 4696 | * We determine which interrupt scheme to use based on... |
| 4697 | * - Kernel support (MSI, MSI-X) |
| 4698 | * - which can be user-defined (via MODULE_PARAM) |
| 4699 | * - Hardware queue count (num_*_queues) |
| 4700 | * - defined by miscellaneous hardware support/features (RSS, etc.) |
| 4701 | **/ |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4702 | int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter) |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4703 | { |
| 4704 | int err; |
| 4705 | |
| 4706 | /* Number of supported queues */ |
Ben Hutchings | 847f53f | 2010-09-27 08:28:56 +0000 | [diff] [blame] | 4707 | err = ixgbe_set_num_queues(adapter); |
| 4708 | if (err) |
| 4709 | return err; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4710 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4711 | err = ixgbe_set_interrupt_capability(adapter); |
| 4712 | if (err) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 4713 | e_dev_err("Unable to setup interrupt capabilities\n"); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4714 | goto err_set_interrupt; |
| 4715 | } |
| 4716 | |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4717 | err = ixgbe_alloc_q_vectors(adapter); |
| 4718 | if (err) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 4719 | e_dev_err("Unable to allocate memory for queue vectors\n"); |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4720 | goto err_alloc_q_vectors; |
| 4721 | } |
| 4722 | |
| 4723 | err = ixgbe_alloc_queues(adapter); |
| 4724 | if (err) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 4725 | e_dev_err("Unable to allocate memory for queues\n"); |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4726 | goto err_alloc_queues; |
| 4727 | } |
| 4728 | |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 4729 | e_dev_info("Multiqueue %s: Rx Queue count = %u, Tx Queue count = %u\n", |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 4730 | (adapter->num_rx_queues > 1) ? "Enabled" : "Disabled", |
| 4731 | adapter->num_rx_queues, adapter->num_tx_queues); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4732 | |
| 4733 | set_bit(__IXGBE_DOWN, &adapter->state); |
| 4734 | |
| 4735 | return 0; |
| 4736 | |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4737 | err_alloc_queues: |
| 4738 | ixgbe_free_q_vectors(adapter); |
| 4739 | err_alloc_q_vectors: |
| 4740 | ixgbe_reset_interrupt_capability(adapter); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4741 | err_set_interrupt: |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4742 | return err; |
| 4743 | } |
| 4744 | |
| 4745 | /** |
| 4746 | * ixgbe_clear_interrupt_scheme - Clear the current interrupt scheme settings |
| 4747 | * @adapter: board private structure to clear interrupt scheme on |
| 4748 | * |
| 4749 | * We go through and clear interrupt specific resources and reset the structure |
| 4750 | * to pre-load conditions |
| 4751 | **/ |
| 4752 | void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter) |
| 4753 | { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4754 | int i; |
| 4755 | |
| 4756 | for (i = 0; i < adapter->num_tx_queues; i++) { |
| 4757 | kfree(adapter->tx_ring[i]); |
| 4758 | adapter->tx_ring[i] = NULL; |
| 4759 | } |
| 4760 | for (i = 0; i < adapter->num_rx_queues; i++) { |
| 4761 | kfree(adapter->rx_ring[i]); |
| 4762 | adapter->rx_ring[i] = NULL; |
| 4763 | } |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 4764 | |
| 4765 | ixgbe_free_q_vectors(adapter); |
| 4766 | ixgbe_reset_interrupt_capability(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4767 | } |
| 4768 | |
| 4769 | /** |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 4770 | * ixgbe_sfp_timer - worker thread to find a missing module |
| 4771 | * @data: pointer to our adapter struct |
| 4772 | **/ |
| 4773 | static void ixgbe_sfp_timer(unsigned long data) |
| 4774 | { |
| 4775 | struct ixgbe_adapter *adapter = (struct ixgbe_adapter *)data; |
| 4776 | |
Jesse Brandeburg | 4df1046 | 2009-03-13 22:15:31 +0000 | [diff] [blame] | 4777 | /* |
| 4778 | * Do the sfp_timer outside of interrupt context due to the |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 4779 | * delays that sfp+ detection requires |
| 4780 | */ |
| 4781 | schedule_work(&adapter->sfp_task); |
| 4782 | } |
| 4783 | |
| 4784 | /** |
| 4785 | * ixgbe_sfp_task - worker thread to find a missing module |
| 4786 | * @work: pointer to work_struct containing our data |
| 4787 | **/ |
| 4788 | static void ixgbe_sfp_task(struct work_struct *work) |
| 4789 | { |
| 4790 | struct ixgbe_adapter *adapter = container_of(work, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4791 | struct ixgbe_adapter, |
| 4792 | sfp_task); |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 4793 | struct ixgbe_hw *hw = &adapter->hw; |
| 4794 | |
| 4795 | if ((hw->phy.type == ixgbe_phy_nl) && |
| 4796 | (hw->phy.sfp_type == ixgbe_sfp_type_not_present)) { |
| 4797 | s32 ret = hw->phy.ops.identify_sfp(hw); |
Don Skidmore | 63d6e1d | 2009-07-02 12:50:12 +0000 | [diff] [blame] | 4798 | if (ret == IXGBE_ERR_SFP_NOT_PRESENT) |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 4799 | goto reschedule; |
| 4800 | ret = hw->phy.ops.reset(hw); |
| 4801 | if (ret == IXGBE_ERR_SFP_NOT_SUPPORTED) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 4802 | e_dev_err("failed to initialize because an unsupported " |
| 4803 | "SFP+ module type was detected.\n"); |
| 4804 | e_dev_err("Reload the driver after installing a " |
| 4805 | "supported module.\n"); |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 4806 | unregister_netdev(adapter->netdev); |
| 4807 | } else { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 4808 | e_info(probe, "detected SFP+: %d\n", hw->phy.sfp_type); |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 4809 | } |
| 4810 | /* don't need this routine any more */ |
| 4811 | clear_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state); |
| 4812 | } |
| 4813 | return; |
| 4814 | reschedule: |
| 4815 | if (test_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state)) |
| 4816 | mod_timer(&adapter->sfp_timer, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4817 | round_jiffies(jiffies + (2 * HZ))); |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 4818 | } |
| 4819 | |
| 4820 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4821 | * ixgbe_sw_init - Initialize general software structures (struct ixgbe_adapter) |
| 4822 | * @adapter: board private structure to initialize |
| 4823 | * |
| 4824 | * ixgbe_sw_init initializes the Adapter private data structure. |
| 4825 | * Fields are initialized based on PCI device information and |
| 4826 | * OS network device settings (MTU size). |
| 4827 | **/ |
| 4828 | static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter) |
| 4829 | { |
| 4830 | struct ixgbe_hw *hw = &adapter->hw; |
| 4831 | struct pci_dev *pdev = adapter->pdev; |
Peter Waskiewicz | 9a713e7 | 2010-02-10 16:07:54 +0000 | [diff] [blame] | 4832 | struct net_device *dev = adapter->netdev; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4833 | unsigned int rss; |
Jeff Kirsher | 7a6b6f5 | 2008-11-25 01:02:08 -0800 | [diff] [blame] | 4834 | #ifdef CONFIG_IXGBE_DCB |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4835 | int j; |
| 4836 | struct tc_configuration *tc; |
| 4837 | #endif |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4838 | |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 4839 | /* PCI config space info */ |
| 4840 | |
| 4841 | hw->vendor_id = pdev->vendor; |
| 4842 | hw->device_id = pdev->device; |
| 4843 | hw->revision_id = pdev->revision; |
| 4844 | hw->subsystem_vendor_id = pdev->subsystem_vendor; |
| 4845 | hw->subsystem_device_id = pdev->subsystem_device; |
| 4846 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4847 | /* Set capability flags */ |
| 4848 | rss = min(IXGBE_MAX_RSS_INDICES, (int)num_online_cpus()); |
| 4849 | adapter->ring_feature[RING_F_RSS].indices = rss; |
| 4850 | adapter->flags |= IXGBE_FLAG_RSS_ENABLED; |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4851 | adapter->ring_feature[RING_F_DCB].indices = IXGBE_MAX_DCB_INDICES; |
Don Skidmore | bf069c9 | 2009-05-07 10:39:54 +0000 | [diff] [blame] | 4852 | if (hw->mac.type == ixgbe_mac_82598EB) { |
| 4853 | if (hw->device_id == IXGBE_DEV_ID_82598AT) |
| 4854 | adapter->flags |= IXGBE_FLAG_FAN_FAIL_CAPABLE; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 4855 | adapter->max_msix_q_vectors = MAX_MSIX_Q_VECTORS_82598; |
Don Skidmore | bf069c9 | 2009-05-07 10:39:54 +0000 | [diff] [blame] | 4856 | } else if (hw->mac.type == ixgbe_mac_82599EB) { |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 4857 | adapter->max_msix_q_vectors = MAX_MSIX_Q_VECTORS_82599; |
Peter P Waskiewicz Jr | 0c19d6a | 2009-07-30 12:25:28 +0000 | [diff] [blame] | 4858 | adapter->flags2 |= IXGBE_FLAG2_RSC_CAPABLE; |
| 4859 | adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED; |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 4860 | if (hw->device_id == IXGBE_DEV_ID_82599_T3_LOM) |
| 4861 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; |
Peter Waskiewicz | 9a713e7 | 2010-02-10 16:07:54 +0000 | [diff] [blame] | 4862 | if (dev->features & NETIF_F_NTUPLE) { |
| 4863 | /* Flow Director perfect filter enabled */ |
| 4864 | adapter->flags |= IXGBE_FLAG_FDIR_PERFECT_CAPABLE; |
| 4865 | adapter->atr_sample_rate = 0; |
| 4866 | spin_lock_init(&adapter->fdir_perfect_lock); |
| 4867 | } else { |
| 4868 | /* Flow Director hash filters enabled */ |
| 4869 | adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; |
| 4870 | adapter->atr_sample_rate = 20; |
| 4871 | } |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4872 | adapter->ring_feature[RING_F_FDIR].indices = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4873 | IXGBE_MAX_FDIR_INDICES; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 4874 | adapter->fdir_pballoc = 0; |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 4875 | #ifdef IXGBE_FCOE |
Yi Zou | 0d55158 | 2009-07-22 14:07:12 +0000 | [diff] [blame] | 4876 | adapter->flags |= IXGBE_FLAG_FCOE_CAPABLE; |
| 4877 | adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED; |
| 4878 | adapter->ring_feature[RING_F_FCOE].indices = 0; |
Yi Zou | 61a0f42 | 2009-12-03 11:32:22 +0000 | [diff] [blame] | 4879 | #ifdef CONFIG_IXGBE_DCB |
Yi Zou | 6ee1652 | 2009-08-31 12:34:28 +0000 | [diff] [blame] | 4880 | /* Default traffic class to use for FCoE */ |
| 4881 | adapter->fcoe.tc = IXGBE_FCOE_DEFTC; |
John Fastabend | 56075a9 | 2010-07-26 20:41:31 +0000 | [diff] [blame] | 4882 | adapter->fcoe.up = IXGBE_FCOE_DEFTC; |
Yi Zou | 61a0f42 | 2009-12-03 11:32:22 +0000 | [diff] [blame] | 4883 | #endif |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 4884 | #endif /* IXGBE_FCOE */ |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 4885 | } |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4886 | |
Jeff Kirsher | 7a6b6f5 | 2008-11-25 01:02:08 -0800 | [diff] [blame] | 4887 | #ifdef CONFIG_IXGBE_DCB |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4888 | /* Configure DCB traffic classes */ |
| 4889 | for (j = 0; j < MAX_TRAFFIC_CLASS; j++) { |
| 4890 | tc = &adapter->dcb_cfg.tc_config[j]; |
| 4891 | tc->path[DCB_TX_CONFIG].bwg_id = 0; |
| 4892 | tc->path[DCB_TX_CONFIG].bwg_percent = 12 + (j & 1); |
| 4893 | tc->path[DCB_RX_CONFIG].bwg_id = 0; |
| 4894 | tc->path[DCB_RX_CONFIG].bwg_percent = 12 + (j & 1); |
| 4895 | tc->dcb_pfc = pfc_disabled; |
| 4896 | } |
| 4897 | adapter->dcb_cfg.bw_percentage[DCB_TX_CONFIG][0] = 100; |
| 4898 | adapter->dcb_cfg.bw_percentage[DCB_RX_CONFIG][0] = 100; |
| 4899 | adapter->dcb_cfg.rx_pba_cfg = pba_equal; |
Peter P Waskiewicz Jr | 264857b | 2009-05-17 12:35:16 +0000 | [diff] [blame] | 4900 | adapter->dcb_cfg.pfc_mode_enable = false; |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4901 | adapter->dcb_cfg.round_robin_enable = false; |
| 4902 | adapter->dcb_set_bitmap = 0x00; |
| 4903 | ixgbe_copy_dcb_cfg(&adapter->dcb_cfg, &adapter->temp_dcb_cfg, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4904 | adapter->ring_feature[RING_F_DCB].indices); |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4905 | |
| 4906 | #endif |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4907 | |
| 4908 | /* default flow control settings */ |
Don Skidmore | cd7664f | 2009-03-31 21:33:44 +0000 | [diff] [blame] | 4909 | hw->fc.requested_mode = ixgbe_fc_full; |
Don Skidmore | 71fd570 | 2009-03-31 21:35:05 +0000 | [diff] [blame] | 4910 | hw->fc.current_mode = ixgbe_fc_full; /* init for ethtool output */ |
Peter P Waskiewicz Jr | 264857b | 2009-05-17 12:35:16 +0000 | [diff] [blame] | 4911 | #ifdef CONFIG_DCB |
| 4912 | adapter->last_lfc_mode = hw->fc.current_mode; |
| 4913 | #endif |
Jesse Brandeburg | 2b9ade9 | 2008-08-26 04:27:10 -0700 | [diff] [blame] | 4914 | hw->fc.high_water = IXGBE_DEFAULT_FCRTH; |
| 4915 | hw->fc.low_water = IXGBE_DEFAULT_FCRTL; |
| 4916 | hw->fc.pause_time = IXGBE_DEFAULT_FCPAUSE; |
| 4917 | hw->fc.send_xon = true; |
Don Skidmore | 71fd570 | 2009-03-31 21:35:05 +0000 | [diff] [blame] | 4918 | hw->fc.disable_fc_autoneg = false; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4919 | |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 4920 | /* enable itr by default in dynamic mode */ |
Nelson, Shannon | f7554a2 | 2009-09-18 09:46:06 +0000 | [diff] [blame] | 4921 | adapter->rx_itr_setting = 1; |
| 4922 | adapter->rx_eitr_param = 20000; |
| 4923 | adapter->tx_itr_setting = 1; |
| 4924 | adapter->tx_eitr_param = 10000; |
Jesse Brandeburg | 30efa5a | 2008-09-11 19:58:14 -0700 | [diff] [blame] | 4925 | |
| 4926 | /* set defaults for eitr in MegaBytes */ |
| 4927 | adapter->eitr_low = 10; |
| 4928 | adapter->eitr_high = 20; |
| 4929 | |
| 4930 | /* set default ring sizes */ |
| 4931 | adapter->tx_ring_count = IXGBE_DEFAULT_TXD; |
| 4932 | adapter->rx_ring_count = IXGBE_DEFAULT_RXD; |
| 4933 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4934 | /* initialize eeprom parameters */ |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 4935 | if (ixgbe_init_eeprom_params_generic(hw)) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 4936 | e_dev_err("EEPROM initialization failed\n"); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4937 | return -EIO; |
| 4938 | } |
| 4939 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 4940 | /* enable rx csum by default */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4941 | adapter->flags |= IXGBE_FLAG_RX_CSUM_ENABLED; |
| 4942 | |
Jesse Brandeburg | 1a6c14a | 2010-02-03 14:18:50 +0000 | [diff] [blame] | 4943 | /* get assigned NUMA node */ |
| 4944 | adapter->node = dev_to_node(&pdev->dev); |
| 4945 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4946 | set_bit(__IXGBE_DOWN, &adapter->state); |
| 4947 | |
| 4948 | return 0; |
| 4949 | } |
| 4950 | |
| 4951 | /** |
| 4952 | * ixgbe_setup_tx_resources - allocate Tx resources (Descriptors) |
| 4953 | * @adapter: board private structure |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 4954 | * @tx_ring: tx descriptor ring (for a specific queue) to setup |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4955 | * |
| 4956 | * Return 0 on success, negative on failure |
| 4957 | **/ |
| 4958 | int ixgbe_setup_tx_resources(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 4959 | struct ixgbe_ring *tx_ring) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4960 | { |
| 4961 | struct pci_dev *pdev = adapter->pdev; |
| 4962 | int size; |
| 4963 | |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 4964 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 4965 | tx_ring->tx_buffer_info = vmalloc_node(size, tx_ring->numa_node); |
Jesse Brandeburg | 1a6c14a | 2010-02-03 14:18:50 +0000 | [diff] [blame] | 4966 | if (!tx_ring->tx_buffer_info) |
| 4967 | tx_ring->tx_buffer_info = vmalloc(size); |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 4968 | if (!tx_ring->tx_buffer_info) |
| 4969 | goto err; |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 4970 | memset(tx_ring->tx_buffer_info, 0, size); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4971 | |
| 4972 | /* round up to nearest 4K */ |
Peter P Waskiewicz Jr | 12207e4 | 2009-02-06 21:47:24 -0800 | [diff] [blame] | 4973 | tx_ring->size = tx_ring->count * sizeof(union ixgbe_adv_tx_desc); |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 4974 | tx_ring->size = ALIGN(tx_ring->size, 4096); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4975 | |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 4976 | tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size, |
| 4977 | &tx_ring->dma, GFP_KERNEL); |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 4978 | if (!tx_ring->desc) |
| 4979 | goto err; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4980 | |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 4981 | tx_ring->next_to_use = 0; |
| 4982 | tx_ring->next_to_clean = 0; |
| 4983 | tx_ring->work_limit = tx_ring->count; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4984 | return 0; |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 4985 | |
| 4986 | err: |
| 4987 | vfree(tx_ring->tx_buffer_info); |
| 4988 | tx_ring->tx_buffer_info = NULL; |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 4989 | e_err(probe, "Unable to allocate memory for the Tx descriptor ring\n"); |
Jesse Brandeburg | e01c31a | 2008-08-26 04:27:13 -0700 | [diff] [blame] | 4990 | return -ENOMEM; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 4991 | } |
| 4992 | |
| 4993 | /** |
Alexander Duyck | 6988867 | 2008-09-11 20:05:39 -0700 | [diff] [blame] | 4994 | * ixgbe_setup_all_tx_resources - allocate all queues Tx resources |
| 4995 | * @adapter: board private structure |
| 4996 | * |
| 4997 | * If this function returns with an error, then it's possible one or |
| 4998 | * more of the rings is populated (while the rest are not). It is the |
| 4999 | * callers duty to clean those orphaned rings. |
| 5000 | * |
| 5001 | * Return 0 on success, negative on failure |
| 5002 | **/ |
| 5003 | static int ixgbe_setup_all_tx_resources(struct ixgbe_adapter *adapter) |
| 5004 | { |
| 5005 | int i, err = 0; |
| 5006 | |
| 5007 | for (i = 0; i < adapter->num_tx_queues; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 5008 | err = ixgbe_setup_tx_resources(adapter, adapter->tx_ring[i]); |
Alexander Duyck | 6988867 | 2008-09-11 20:05:39 -0700 | [diff] [blame] | 5009 | if (!err) |
| 5010 | continue; |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 5011 | e_err(probe, "Allocation for Tx Queue %u failed\n", i); |
Alexander Duyck | 6988867 | 2008-09-11 20:05:39 -0700 | [diff] [blame] | 5012 | break; |
| 5013 | } |
| 5014 | |
| 5015 | return err; |
| 5016 | } |
| 5017 | |
| 5018 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5019 | * ixgbe_setup_rx_resources - allocate Rx resources (Descriptors) |
| 5020 | * @adapter: board private structure |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 5021 | * @rx_ring: rx descriptor ring (for a specific queue) to setup |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5022 | * |
| 5023 | * Returns 0 on success, negative on failure |
| 5024 | **/ |
| 5025 | int ixgbe_setup_rx_resources(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5026 | struct ixgbe_ring *rx_ring) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5027 | { |
| 5028 | struct pci_dev *pdev = adapter->pdev; |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 5029 | int size; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5030 | |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 5031 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; |
Jesse Brandeburg | 1a6c14a | 2010-02-03 14:18:50 +0000 | [diff] [blame] | 5032 | rx_ring->rx_buffer_info = vmalloc_node(size, adapter->node); |
| 5033 | if (!rx_ring->rx_buffer_info) |
| 5034 | rx_ring->rx_buffer_info = vmalloc(size); |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 5035 | if (!rx_ring->rx_buffer_info) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 5036 | e_err(probe, "vmalloc allocation failed for the Rx " |
| 5037 | "descriptor ring\n"); |
Mallikarjuna R Chilakala | 177db6f | 2008-06-18 15:32:19 -0700 | [diff] [blame] | 5038 | goto alloc_failed; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5039 | } |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 5040 | memset(rx_ring->rx_buffer_info, 0, size); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5041 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5042 | /* Round up to nearest 4K */ |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 5043 | rx_ring->size = rx_ring->count * sizeof(union ixgbe_adv_rx_desc); |
| 5044 | rx_ring->size = ALIGN(rx_ring->size, 4096); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5045 | |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 5046 | rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size, |
| 5047 | &rx_ring->dma, GFP_KERNEL); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5048 | |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 5049 | if (!rx_ring->desc) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 5050 | e_err(probe, "Memory allocation failed for the Rx " |
| 5051 | "descriptor ring\n"); |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 5052 | vfree(rx_ring->rx_buffer_info); |
Mallikarjuna R Chilakala | 177db6f | 2008-06-18 15:32:19 -0700 | [diff] [blame] | 5053 | goto alloc_failed; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5054 | } |
| 5055 | |
Jesse Brandeburg | 3a58107 | 2008-08-26 04:27:08 -0700 | [diff] [blame] | 5056 | rx_ring->next_to_clean = 0; |
| 5057 | rx_ring->next_to_use = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5058 | |
| 5059 | return 0; |
Mallikarjuna R Chilakala | 177db6f | 2008-06-18 15:32:19 -0700 | [diff] [blame] | 5060 | |
| 5061 | alloc_failed: |
Mallikarjuna R Chilakala | 177db6f | 2008-06-18 15:32:19 -0700 | [diff] [blame] | 5062 | return -ENOMEM; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5063 | } |
| 5064 | |
| 5065 | /** |
Alexander Duyck | 6988867 | 2008-09-11 20:05:39 -0700 | [diff] [blame] | 5066 | * ixgbe_setup_all_rx_resources - allocate all queues Rx resources |
| 5067 | * @adapter: board private structure |
| 5068 | * |
| 5069 | * If this function returns with an error, then it's possible one or |
| 5070 | * more of the rings is populated (while the rest are not). It is the |
| 5071 | * callers duty to clean those orphaned rings. |
| 5072 | * |
| 5073 | * Return 0 on success, negative on failure |
| 5074 | **/ |
| 5075 | |
| 5076 | static int ixgbe_setup_all_rx_resources(struct ixgbe_adapter *adapter) |
| 5077 | { |
| 5078 | int i, err = 0; |
| 5079 | |
| 5080 | for (i = 0; i < adapter->num_rx_queues; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 5081 | err = ixgbe_setup_rx_resources(adapter, adapter->rx_ring[i]); |
Alexander Duyck | 6988867 | 2008-09-11 20:05:39 -0700 | [diff] [blame] | 5082 | if (!err) |
| 5083 | continue; |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 5084 | e_err(probe, "Allocation for Rx Queue %u failed\n", i); |
Alexander Duyck | 6988867 | 2008-09-11 20:05:39 -0700 | [diff] [blame] | 5085 | break; |
| 5086 | } |
| 5087 | |
| 5088 | return err; |
| 5089 | } |
| 5090 | |
| 5091 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5092 | * ixgbe_free_tx_resources - Free Tx Resources per Queue |
| 5093 | * @adapter: board private structure |
| 5094 | * @tx_ring: Tx descriptor ring for a specific queue |
| 5095 | * |
| 5096 | * Free all transmit software resources |
| 5097 | **/ |
Jesse Brandeburg | c431f97 | 2008-09-11 19:59:16 -0700 | [diff] [blame] | 5098 | void ixgbe_free_tx_resources(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5099 | struct ixgbe_ring *tx_ring) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5100 | { |
| 5101 | struct pci_dev *pdev = adapter->pdev; |
| 5102 | |
| 5103 | ixgbe_clean_tx_ring(adapter, tx_ring); |
| 5104 | |
| 5105 | vfree(tx_ring->tx_buffer_info); |
| 5106 | tx_ring->tx_buffer_info = NULL; |
| 5107 | |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 5108 | dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc, |
| 5109 | tx_ring->dma); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5110 | |
| 5111 | tx_ring->desc = NULL; |
| 5112 | } |
| 5113 | |
| 5114 | /** |
| 5115 | * ixgbe_free_all_tx_resources - Free Tx Resources for All Queues |
| 5116 | * @adapter: board private structure |
| 5117 | * |
| 5118 | * Free all transmit software resources |
| 5119 | **/ |
| 5120 | static void ixgbe_free_all_tx_resources(struct ixgbe_adapter *adapter) |
| 5121 | { |
| 5122 | int i; |
| 5123 | |
| 5124 | for (i = 0; i < adapter->num_tx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 5125 | if (adapter->tx_ring[i]->desc) |
| 5126 | ixgbe_free_tx_resources(adapter, adapter->tx_ring[i]); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5127 | } |
| 5128 | |
| 5129 | /** |
Peter P Waskiewicz | b461724 | 2008-09-11 20:04:46 -0700 | [diff] [blame] | 5130 | * ixgbe_free_rx_resources - Free Rx Resources |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5131 | * @adapter: board private structure |
| 5132 | * @rx_ring: ring to clean the resources from |
| 5133 | * |
| 5134 | * Free all receive software resources |
| 5135 | **/ |
Jesse Brandeburg | c431f97 | 2008-09-11 19:59:16 -0700 | [diff] [blame] | 5136 | void ixgbe_free_rx_resources(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5137 | struct ixgbe_ring *rx_ring) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5138 | { |
| 5139 | struct pci_dev *pdev = adapter->pdev; |
| 5140 | |
| 5141 | ixgbe_clean_rx_ring(adapter, rx_ring); |
| 5142 | |
| 5143 | vfree(rx_ring->rx_buffer_info); |
| 5144 | rx_ring->rx_buffer_info = NULL; |
| 5145 | |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 5146 | dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc, |
| 5147 | rx_ring->dma); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5148 | |
| 5149 | rx_ring->desc = NULL; |
| 5150 | } |
| 5151 | |
| 5152 | /** |
| 5153 | * ixgbe_free_all_rx_resources - Free Rx Resources for All Queues |
| 5154 | * @adapter: board private structure |
| 5155 | * |
| 5156 | * Free all receive software resources |
| 5157 | **/ |
| 5158 | static void ixgbe_free_all_rx_resources(struct ixgbe_adapter *adapter) |
| 5159 | { |
| 5160 | int i; |
| 5161 | |
| 5162 | for (i = 0; i < adapter->num_rx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 5163 | if (adapter->rx_ring[i]->desc) |
| 5164 | ixgbe_free_rx_resources(adapter, adapter->rx_ring[i]); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5165 | } |
| 5166 | |
| 5167 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5168 | * ixgbe_change_mtu - Change the Maximum Transfer Unit |
| 5169 | * @netdev: network interface device structure |
| 5170 | * @new_mtu: new value for maximum frame size |
| 5171 | * |
| 5172 | * Returns 0 on success, negative on failure |
| 5173 | **/ |
| 5174 | static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu) |
| 5175 | { |
| 5176 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 5177 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; |
| 5178 | |
Jesse Brandeburg | 42c783c | 2008-09-11 19:56:28 -0700 | [diff] [blame] | 5179 | /* MTU < 68 is an error and causes problems on some kernels */ |
| 5180 | if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE)) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5181 | return -EINVAL; |
| 5182 | |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 5183 | e_info(probe, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 5184 | /* must set new MTU before calling down or up */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5185 | netdev->mtu = new_mtu; |
| 5186 | |
Ayyappan Veeraiyan | d4f8088 | 2008-02-01 15:58:41 -0800 | [diff] [blame] | 5187 | if (netif_running(netdev)) |
| 5188 | ixgbe_reinit_locked(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5189 | |
| 5190 | return 0; |
| 5191 | } |
| 5192 | |
| 5193 | /** |
| 5194 | * ixgbe_open - Called when a network interface is made active |
| 5195 | * @netdev: network interface device structure |
| 5196 | * |
| 5197 | * Returns 0 on success, negative value on failure |
| 5198 | * |
| 5199 | * The open entry point is called when a network interface is made |
| 5200 | * active by the system (IFF_UP). At this point all resources needed |
| 5201 | * for transmit and receive operations are allocated, the interrupt |
| 5202 | * handler is registered with the OS, the watchdog timer is started, |
| 5203 | * and the stack is notified that the interface is ready. |
| 5204 | **/ |
| 5205 | static int ixgbe_open(struct net_device *netdev) |
| 5206 | { |
| 5207 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 5208 | int err; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5209 | |
Auke Kok | 4bebfaa | 2008-02-11 09:26:01 -0800 | [diff] [blame] | 5210 | /* disallow open during test */ |
| 5211 | if (test_bit(__IXGBE_TESTING, &adapter->state)) |
| 5212 | return -EBUSY; |
| 5213 | |
Jesse Brandeburg | 5438646 | 2009-04-17 20:44:27 +0000 | [diff] [blame] | 5214 | netif_carrier_off(netdev); |
| 5215 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5216 | /* allocate transmit descriptors */ |
| 5217 | err = ixgbe_setup_all_tx_resources(adapter); |
| 5218 | if (err) |
| 5219 | goto err_setup_tx; |
| 5220 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5221 | /* allocate receive descriptors */ |
| 5222 | err = ixgbe_setup_all_rx_resources(adapter); |
| 5223 | if (err) |
| 5224 | goto err_setup_rx; |
| 5225 | |
| 5226 | ixgbe_configure(adapter); |
| 5227 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 5228 | err = ixgbe_request_irq(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5229 | if (err) |
| 5230 | goto err_req_irq; |
| 5231 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5232 | err = ixgbe_up_complete(adapter); |
| 5233 | if (err) |
| 5234 | goto err_up; |
| 5235 | |
Jeff Kirsher | d55b53f | 2008-07-18 04:33:03 -0700 | [diff] [blame] | 5236 | netif_tx_start_all_queues(netdev); |
| 5237 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5238 | return 0; |
| 5239 | |
| 5240 | err_up: |
Ayyappan Veeraiyan | 5eba369 | 2008-02-01 15:59:04 -0800 | [diff] [blame] | 5241 | ixgbe_release_hw_control(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5242 | ixgbe_free_irq(adapter); |
| 5243 | err_req_irq: |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5244 | err_setup_rx: |
Mallikarjuna R Chilakala | a20a119 | 2009-03-31 21:34:44 +0000 | [diff] [blame] | 5245 | ixgbe_free_all_rx_resources(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5246 | err_setup_tx: |
Mallikarjuna R Chilakala | a20a119 | 2009-03-31 21:34:44 +0000 | [diff] [blame] | 5247 | ixgbe_free_all_tx_resources(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5248 | ixgbe_reset(adapter); |
| 5249 | |
| 5250 | return err; |
| 5251 | } |
| 5252 | |
| 5253 | /** |
| 5254 | * ixgbe_close - Disables a network interface |
| 5255 | * @netdev: network interface device structure |
| 5256 | * |
| 5257 | * Returns 0, this is not allowed to fail |
| 5258 | * |
| 5259 | * The close entry point is called when an interface is de-activated |
| 5260 | * by the OS. The hardware is still under the drivers control, but |
| 5261 | * needs to be disabled. A global MAC reset is issued to stop the |
| 5262 | * hardware, and all transmit and receive resources are freed. |
| 5263 | **/ |
| 5264 | static int ixgbe_close(struct net_device *netdev) |
| 5265 | { |
| 5266 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5267 | |
| 5268 | ixgbe_down(adapter); |
| 5269 | ixgbe_free_irq(adapter); |
| 5270 | |
| 5271 | ixgbe_free_all_tx_resources(adapter); |
| 5272 | ixgbe_free_all_rx_resources(adapter); |
| 5273 | |
Ayyappan Veeraiyan | 5eba369 | 2008-02-01 15:59:04 -0800 | [diff] [blame] | 5274 | ixgbe_release_hw_control(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5275 | |
| 5276 | return 0; |
| 5277 | } |
| 5278 | |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5279 | #ifdef CONFIG_PM |
| 5280 | static int ixgbe_resume(struct pci_dev *pdev) |
| 5281 | { |
| 5282 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 5283 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 5284 | u32 err; |
| 5285 | |
| 5286 | pci_set_power_state(pdev, PCI_D0); |
| 5287 | pci_restore_state(pdev); |
Don Skidmore | 656ab81 | 2009-12-23 21:19:19 -0800 | [diff] [blame] | 5288 | /* |
| 5289 | * pci_restore_state clears dev->state_saved so call |
| 5290 | * pci_save_state to restore it. |
| 5291 | */ |
| 5292 | pci_save_state(pdev); |
gouji-new | 9ce7766 | 2009-05-06 10:44:45 +0000 | [diff] [blame] | 5293 | |
| 5294 | err = pci_enable_device_mem(pdev); |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5295 | if (err) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 5296 | e_dev_err("Cannot enable PCI device from suspend\n"); |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5297 | return err; |
| 5298 | } |
| 5299 | pci_set_master(pdev); |
| 5300 | |
Don Skidmore | dd4d8ca | 2009-04-29 00:22:31 -0700 | [diff] [blame] | 5301 | pci_wake_from_d3(pdev, false); |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5302 | |
| 5303 | err = ixgbe_init_interrupt_scheme(adapter); |
| 5304 | if (err) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 5305 | e_dev_err("Cannot initialize interrupts for device\n"); |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5306 | return err; |
| 5307 | } |
| 5308 | |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5309 | ixgbe_reset(adapter); |
| 5310 | |
Waskiewicz Jr, Peter P | 495dce1 | 2009-04-23 11:15:18 +0000 | [diff] [blame] | 5311 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
| 5312 | |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5313 | if (netif_running(netdev)) { |
| 5314 | err = ixgbe_open(adapter->netdev); |
| 5315 | if (err) |
| 5316 | return err; |
| 5317 | } |
| 5318 | |
| 5319 | netif_device_attach(netdev); |
| 5320 | |
| 5321 | return 0; |
| 5322 | } |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5323 | #endif /* CONFIG_PM */ |
Rafael J. Wysocki | 9d8d05a | 2009-04-15 17:44:01 +0000 | [diff] [blame] | 5324 | |
| 5325 | static int __ixgbe_shutdown(struct pci_dev *pdev, bool *enable_wake) |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5326 | { |
| 5327 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 5328 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5329 | struct ixgbe_hw *hw = &adapter->hw; |
| 5330 | u32 ctrl, fctrl; |
| 5331 | u32 wufc = adapter->wol; |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5332 | #ifdef CONFIG_PM |
| 5333 | int retval = 0; |
| 5334 | #endif |
| 5335 | |
| 5336 | netif_device_detach(netdev); |
| 5337 | |
| 5338 | if (netif_running(netdev)) { |
| 5339 | ixgbe_down(adapter); |
| 5340 | ixgbe_free_irq(adapter); |
| 5341 | ixgbe_free_all_tx_resources(adapter); |
| 5342 | ixgbe_free_all_rx_resources(adapter); |
| 5343 | } |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5344 | |
| 5345 | #ifdef CONFIG_PM |
| 5346 | retval = pci_save_state(pdev); |
| 5347 | if (retval) |
| 5348 | return retval; |
Jesse Brandeburg | 4df1046 | 2009-03-13 22:15:31 +0000 | [diff] [blame] | 5349 | |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5350 | #endif |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5351 | if (wufc) { |
| 5352 | ixgbe_set_rx_mode(netdev); |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5353 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5354 | /* turn on all-multi mode if wake on multicast is enabled */ |
| 5355 | if (wufc & IXGBE_WUFC_MC) { |
| 5356 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); |
| 5357 | fctrl |= IXGBE_FCTRL_MPE; |
| 5358 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); |
| 5359 | } |
| 5360 | |
| 5361 | ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); |
| 5362 | ctrl |= IXGBE_CTRL_GIO_DIS; |
| 5363 | IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl); |
| 5364 | |
| 5365 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, wufc); |
| 5366 | } else { |
| 5367 | IXGBE_WRITE_REG(hw, IXGBE_WUC, 0); |
| 5368 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, 0); |
| 5369 | } |
| 5370 | |
Don Skidmore | dd4d8ca | 2009-04-29 00:22:31 -0700 | [diff] [blame] | 5371 | if (wufc && hw->mac.type == ixgbe_mac_82599EB) |
| 5372 | pci_wake_from_d3(pdev, true); |
| 5373 | else |
| 5374 | pci_wake_from_d3(pdev, false); |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5375 | |
Rafael J. Wysocki | 9d8d05a | 2009-04-15 17:44:01 +0000 | [diff] [blame] | 5376 | *enable_wake = !!wufc; |
| 5377 | |
Andy Gospodarek | fa37813 | 2010-06-29 18:28:12 +0000 | [diff] [blame] | 5378 | ixgbe_clear_interrupt_scheme(adapter); |
| 5379 | |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5380 | ixgbe_release_hw_control(adapter); |
| 5381 | |
| 5382 | pci_disable_device(pdev); |
| 5383 | |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5384 | return 0; |
| 5385 | } |
| 5386 | |
Rafael J. Wysocki | 9d8d05a | 2009-04-15 17:44:01 +0000 | [diff] [blame] | 5387 | #ifdef CONFIG_PM |
| 5388 | static int ixgbe_suspend(struct pci_dev *pdev, pm_message_t state) |
| 5389 | { |
| 5390 | int retval; |
| 5391 | bool wake; |
| 5392 | |
| 5393 | retval = __ixgbe_shutdown(pdev, &wake); |
| 5394 | if (retval) |
| 5395 | return retval; |
| 5396 | |
| 5397 | if (wake) { |
| 5398 | pci_prepare_to_sleep(pdev); |
| 5399 | } else { |
| 5400 | pci_wake_from_d3(pdev, false); |
| 5401 | pci_set_power_state(pdev, PCI_D3hot); |
| 5402 | } |
| 5403 | |
| 5404 | return 0; |
| 5405 | } |
| 5406 | #endif /* CONFIG_PM */ |
| 5407 | |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5408 | static void ixgbe_shutdown(struct pci_dev *pdev) |
| 5409 | { |
Rafael J. Wysocki | 9d8d05a | 2009-04-15 17:44:01 +0000 | [diff] [blame] | 5410 | bool wake; |
| 5411 | |
| 5412 | __ixgbe_shutdown(pdev, &wake); |
| 5413 | |
| 5414 | if (system_state == SYSTEM_POWER_OFF) { |
| 5415 | pci_wake_from_d3(pdev, wake); |
| 5416 | pci_set_power_state(pdev, PCI_D3hot); |
| 5417 | } |
Alexander Duyck | b3c8b4b | 2008-09-11 20:04:56 -0700 | [diff] [blame] | 5418 | } |
| 5419 | |
| 5420 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5421 | * ixgbe_update_stats - Update the board statistics counters. |
| 5422 | * @adapter: board private structure |
| 5423 | **/ |
| 5424 | void ixgbe_update_stats(struct ixgbe_adapter *adapter) |
| 5425 | { |
Ajit Khaparde | 2d86f13 | 2009-10-07 02:43:49 +0000 | [diff] [blame] | 5426 | struct net_device *netdev = adapter->netdev; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5427 | struct ixgbe_hw *hw = &adapter->hw; |
Ayyappan Veeraiyan | 6f11eef | 2008-02-01 15:59:14 -0800 | [diff] [blame] | 5428 | u64 total_mpc = 0; |
| 5429 | u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot; |
Mallikarjuna R Chilakala | eb985f0 | 2009-12-15 11:56:59 +0000 | [diff] [blame] | 5430 | u64 non_eop_descs = 0, restart_queue = 0; |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5431 | struct ixgbe_hw_stats *hwstats = &adapter->stats; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5432 | |
Don Skidmore | d08935c | 2010-06-11 13:20:29 +0000 | [diff] [blame] | 5433 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
| 5434 | test_bit(__IXGBE_RESETTING, &adapter->state)) |
| 5435 | return; |
| 5436 | |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 5437 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) { |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 5438 | u64 rsc_count = 0; |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 5439 | u64 rsc_flush = 0; |
PJ Waskiewicz | d51019a | 2009-03-13 22:12:48 +0000 | [diff] [blame] | 5440 | for (i = 0; i < 16; i++) |
| 5441 | adapter->hw_rx_no_dma_resources += |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5442 | IXGBE_READ_REG(hw, IXGBE_QPRDC(i)); |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 5443 | for (i = 0; i < adapter->num_rx_queues; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 5444 | rsc_count += adapter->rx_ring[i]->rsc_count; |
| 5445 | rsc_flush += adapter->rx_ring[i]->rsc_flush; |
Mallikarjuna R Chilakala | 94b982b | 2009-11-23 06:32:06 +0000 | [diff] [blame] | 5446 | } |
| 5447 | adapter->rsc_total_count = rsc_count; |
| 5448 | adapter->rsc_total_flush = rsc_flush; |
PJ Waskiewicz | d51019a | 2009-03-13 22:12:48 +0000 | [diff] [blame] | 5449 | } |
| 5450 | |
Jesse Brandeburg | 7ca3bc5 | 2009-12-03 11:33:29 +0000 | [diff] [blame] | 5451 | /* gather some stats to the adapter struct that are per queue */ |
| 5452 | for (i = 0; i < adapter->num_tx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 5453 | restart_queue += adapter->tx_ring[i]->restart_queue; |
Mallikarjuna R Chilakala | eb985f0 | 2009-12-15 11:56:59 +0000 | [diff] [blame] | 5454 | adapter->restart_queue = restart_queue; |
Jesse Brandeburg | 7ca3bc5 | 2009-12-03 11:33:29 +0000 | [diff] [blame] | 5455 | |
| 5456 | for (i = 0; i < adapter->num_rx_queues; i++) |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 5457 | non_eop_descs += adapter->rx_ring[i]->non_eop_descs; |
Mallikarjuna R Chilakala | eb985f0 | 2009-12-15 11:56:59 +0000 | [diff] [blame] | 5458 | adapter->non_eop_descs = non_eop_descs; |
Jesse Brandeburg | 7ca3bc5 | 2009-12-03 11:33:29 +0000 | [diff] [blame] | 5459 | |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5460 | hwstats->crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS); |
Ayyappan Veeraiyan | 6f11eef | 2008-02-01 15:59:14 -0800 | [diff] [blame] | 5461 | for (i = 0; i < 8; i++) { |
| 5462 | /* for packet buffers not used, the register should read 0 */ |
| 5463 | mpc = IXGBE_READ_REG(hw, IXGBE_MPC(i)); |
| 5464 | missed_rx += mpc; |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5465 | hwstats->mpc[i] += mpc; |
| 5466 | total_mpc += hwstats->mpc[i]; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5467 | if (hw->mac.type == ixgbe_mac_82598EB) |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5468 | hwstats->rnbc[i] += IXGBE_READ_REG(hw, IXGBE_RNBC(i)); |
| 5469 | hwstats->qptc[i] += IXGBE_READ_REG(hw, IXGBE_QPTC(i)); |
| 5470 | hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC(i)); |
| 5471 | hwstats->qprc[i] += IXGBE_READ_REG(hw, IXGBE_QPRC(i)); |
| 5472 | hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC(i)); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5473 | if (hw->mac.type == ixgbe_mac_82599EB) { |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5474 | hwstats->pxonrxc[i] += |
| 5475 | IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i)); |
| 5476 | hwstats->pxoffrxc[i] += |
| 5477 | IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i)); |
| 5478 | hwstats->qprdc[i] += IXGBE_READ_REG(hw, IXGBE_QPRDC(i)); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5479 | } else { |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5480 | hwstats->pxonrxc[i] += |
| 5481 | IXGBE_READ_REG(hw, IXGBE_PXONRXC(i)); |
| 5482 | hwstats->pxoffrxc[i] += |
| 5483 | IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i)); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5484 | } |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5485 | hwstats->pxontxc[i] += IXGBE_READ_REG(hw, IXGBE_PXONTXC(i)); |
| 5486 | hwstats->pxofftxc[i] += IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i)); |
Ayyappan Veeraiyan | 6f11eef | 2008-02-01 15:59:14 -0800 | [diff] [blame] | 5487 | } |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5488 | hwstats->gprc += IXGBE_READ_REG(hw, IXGBE_GPRC); |
Ayyappan Veeraiyan | 6f11eef | 2008-02-01 15:59:14 -0800 | [diff] [blame] | 5489 | /* work around hardware counting issue */ |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5490 | hwstats->gprc -= missed_rx; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5491 | |
Ayyappan Veeraiyan | 6f11eef | 2008-02-01 15:59:14 -0800 | [diff] [blame] | 5492 | /* 82598 hardware only has a 32 bit counter in the high register */ |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5493 | if (hw->mac.type == ixgbe_mac_82599EB) { |
Ben Greear | aad7191 | 2009-09-30 12:08:16 +0000 | [diff] [blame] | 5494 | u64 tmp; |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5495 | hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCL); |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5496 | tmp = IXGBE_READ_REG(hw, IXGBE_GORCH) & 0xF; |
| 5497 | /* 4 high bits of GORC */ |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5498 | hwstats->gorc += (tmp << 32); |
| 5499 | hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCL); |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5500 | tmp = IXGBE_READ_REG(hw, IXGBE_GOTCH) & 0xF; |
| 5501 | /* 4 high bits of GOTC */ |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5502 | hwstats->gotc += (tmp << 32); |
| 5503 | hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORL); |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5504 | IXGBE_READ_REG(hw, IXGBE_TORH); /* to clear */ |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5505 | hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXCNT); |
| 5506 | hwstats->lxoffrxc += IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT); |
| 5507 | hwstats->fdirmatch += IXGBE_READ_REG(hw, IXGBE_FDIRMATCH); |
| 5508 | hwstats->fdirmiss += IXGBE_READ_REG(hw, IXGBE_FDIRMISS); |
Yi Zou | 6d45522 | 2009-05-13 13:12:16 +0000 | [diff] [blame] | 5509 | #ifdef IXGBE_FCOE |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5510 | hwstats->fccrc += IXGBE_READ_REG(hw, IXGBE_FCCRC); |
| 5511 | hwstats->fcoerpdc += IXGBE_READ_REG(hw, IXGBE_FCOERPDC); |
| 5512 | hwstats->fcoeprc += IXGBE_READ_REG(hw, IXGBE_FCOEPRC); |
| 5513 | hwstats->fcoeptc += IXGBE_READ_REG(hw, IXGBE_FCOEPTC); |
| 5514 | hwstats->fcoedwrc += IXGBE_READ_REG(hw, IXGBE_FCOEDWRC); |
| 5515 | hwstats->fcoedwtc += IXGBE_READ_REG(hw, IXGBE_FCOEDWTC); |
Yi Zou | 6d45522 | 2009-05-13 13:12:16 +0000 | [diff] [blame] | 5516 | #endif /* IXGBE_FCOE */ |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5517 | } else { |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5518 | hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXC); |
| 5519 | hwstats->lxoffrxc += IXGBE_READ_REG(hw, IXGBE_LXOFFRXC); |
| 5520 | hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCH); |
| 5521 | hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH); |
| 5522 | hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORH); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5523 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5524 | bprc = IXGBE_READ_REG(hw, IXGBE_BPRC); |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5525 | hwstats->bprc += bprc; |
| 5526 | hwstats->mprc += IXGBE_READ_REG(hw, IXGBE_MPRC); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5527 | if (hw->mac.type == ixgbe_mac_82598EB) |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5528 | hwstats->mprc -= bprc; |
| 5529 | hwstats->roc += IXGBE_READ_REG(hw, IXGBE_ROC); |
| 5530 | hwstats->prc64 += IXGBE_READ_REG(hw, IXGBE_PRC64); |
| 5531 | hwstats->prc127 += IXGBE_READ_REG(hw, IXGBE_PRC127); |
| 5532 | hwstats->prc255 += IXGBE_READ_REG(hw, IXGBE_PRC255); |
| 5533 | hwstats->prc511 += IXGBE_READ_REG(hw, IXGBE_PRC511); |
| 5534 | hwstats->prc1023 += IXGBE_READ_REG(hw, IXGBE_PRC1023); |
| 5535 | hwstats->prc1522 += IXGBE_READ_REG(hw, IXGBE_PRC1522); |
| 5536 | hwstats->rlec += IXGBE_READ_REG(hw, IXGBE_RLEC); |
Ayyappan Veeraiyan | 6f11eef | 2008-02-01 15:59:14 -0800 | [diff] [blame] | 5537 | lxon = IXGBE_READ_REG(hw, IXGBE_LXONTXC); |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5538 | hwstats->lxontxc += lxon; |
Ayyappan Veeraiyan | 6f11eef | 2008-02-01 15:59:14 -0800 | [diff] [blame] | 5539 | lxoff = IXGBE_READ_REG(hw, IXGBE_LXOFFTXC); |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5540 | hwstats->lxofftxc += lxoff; |
| 5541 | hwstats->ruc += IXGBE_READ_REG(hw, IXGBE_RUC); |
| 5542 | hwstats->gptc += IXGBE_READ_REG(hw, IXGBE_GPTC); |
| 5543 | hwstats->mptc += IXGBE_READ_REG(hw, IXGBE_MPTC); |
Ayyappan Veeraiyan | 6f11eef | 2008-02-01 15:59:14 -0800 | [diff] [blame] | 5544 | /* |
| 5545 | * 82598 errata - tx of flow control packets is included in tx counters |
| 5546 | */ |
| 5547 | xon_off_tot = lxon + lxoff; |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5548 | hwstats->gptc -= xon_off_tot; |
| 5549 | hwstats->mptc -= xon_off_tot; |
| 5550 | hwstats->gotc -= (xon_off_tot * (ETH_ZLEN + ETH_FCS_LEN)); |
| 5551 | hwstats->ruc += IXGBE_READ_REG(hw, IXGBE_RUC); |
| 5552 | hwstats->rfc += IXGBE_READ_REG(hw, IXGBE_RFC); |
| 5553 | hwstats->rjc += IXGBE_READ_REG(hw, IXGBE_RJC); |
| 5554 | hwstats->tpr += IXGBE_READ_REG(hw, IXGBE_TPR); |
| 5555 | hwstats->ptc64 += IXGBE_READ_REG(hw, IXGBE_PTC64); |
| 5556 | hwstats->ptc64 -= xon_off_tot; |
| 5557 | hwstats->ptc127 += IXGBE_READ_REG(hw, IXGBE_PTC127); |
| 5558 | hwstats->ptc255 += IXGBE_READ_REG(hw, IXGBE_PTC255); |
| 5559 | hwstats->ptc511 += IXGBE_READ_REG(hw, IXGBE_PTC511); |
| 5560 | hwstats->ptc1023 += IXGBE_READ_REG(hw, IXGBE_PTC1023); |
| 5561 | hwstats->ptc1522 += IXGBE_READ_REG(hw, IXGBE_PTC1522); |
| 5562 | hwstats->bptc += IXGBE_READ_REG(hw, IXGBE_BPTC); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5563 | |
| 5564 | /* Fill out the OS statistics structure */ |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5565 | netdev->stats.multicast = hwstats->mprc; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5566 | |
| 5567 | /* Rx Errors */ |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5568 | netdev->stats.rx_errors = hwstats->crcerrs + hwstats->rlec; |
Ajit Khaparde | 2d86f13 | 2009-10-07 02:43:49 +0000 | [diff] [blame] | 5569 | netdev->stats.rx_dropped = 0; |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5570 | netdev->stats.rx_length_errors = hwstats->rlec; |
| 5571 | netdev->stats.rx_crc_errors = hwstats->crcerrs; |
Ajit Khaparde | 2d86f13 | 2009-10-07 02:43:49 +0000 | [diff] [blame] | 5572 | netdev->stats.rx_missed_errors = total_mpc; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5573 | } |
| 5574 | |
| 5575 | /** |
| 5576 | * ixgbe_watchdog - Timer Call-back |
| 5577 | * @data: pointer to adapter cast into an unsigned long |
| 5578 | **/ |
| 5579 | static void ixgbe_watchdog(unsigned long data) |
| 5580 | { |
| 5581 | struct ixgbe_adapter *adapter = (struct ixgbe_adapter *)data; |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5582 | struct ixgbe_hw *hw = &adapter->hw; |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 5583 | u64 eics = 0; |
| 5584 | int i; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5585 | |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 5586 | /* |
| 5587 | * Do the watchdog outside of interrupt context due to the lovely |
| 5588 | * delays that some of the newer hardware requires |
| 5589 | */ |
Jesse Brandeburg | 22d5a71 | 2009-03-19 01:24:04 +0000 | [diff] [blame] | 5590 | |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 5591 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
| 5592 | goto watchdog_short_circuit; |
Jesse Brandeburg | 22d5a71 | 2009-03-19 01:24:04 +0000 | [diff] [blame] | 5593 | |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 5594 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { |
| 5595 | /* |
| 5596 | * for legacy and MSI interrupts don't set any bits |
| 5597 | * that are enabled for EIAM, because this operation |
| 5598 | * would set *both* EIMS and EICS for any bit in EIAM |
| 5599 | */ |
| 5600 | IXGBE_WRITE_REG(hw, IXGBE_EICS, |
| 5601 | (IXGBE_EICS_TCP_TIMER | IXGBE_EICS_OTHER)); |
| 5602 | goto watchdog_reschedule; |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5603 | } |
| 5604 | |
Alexander Duyck | fe49f04 | 2009-06-04 16:00:09 +0000 | [diff] [blame] | 5605 | /* get one bit for every active tx/rx interrupt vector */ |
| 5606 | for (i = 0; i < adapter->num_msix_vectors - NON_Q_VECTORS; i++) { |
| 5607 | struct ixgbe_q_vector *qv = adapter->q_vector[i]; |
| 5608 | if (qv->rxr_count || qv->txr_count) |
| 5609 | eics |= ((u64)1 << i); |
| 5610 | } |
| 5611 | |
| 5612 | /* Cause software interrupt to ensure rx rings are cleaned */ |
| 5613 | ixgbe_irq_rearm_queues(adapter, eics); |
| 5614 | |
| 5615 | watchdog_reschedule: |
| 5616 | /* Reset the timer */ |
| 5617 | mod_timer(&adapter->watchdog_timer, round_jiffies(jiffies + 2 * HZ)); |
| 5618 | |
| 5619 | watchdog_short_circuit: |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5620 | schedule_work(&adapter->watchdog_task); |
| 5621 | } |
| 5622 | |
| 5623 | /** |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5624 | * ixgbe_multispeed_fiber_task - worker thread to configure multispeed fiber |
| 5625 | * @work: pointer to work_struct containing our data |
| 5626 | **/ |
| 5627 | static void ixgbe_multispeed_fiber_task(struct work_struct *work) |
| 5628 | { |
| 5629 | struct ixgbe_adapter *adapter = container_of(work, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5630 | struct ixgbe_adapter, |
| 5631 | multispeed_fiber_task); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5632 | struct ixgbe_hw *hw = &adapter->hw; |
| 5633 | u32 autoneg; |
Mallikarjuna R Chilakala | 8620a10 | 2009-09-01 13:49:35 +0000 | [diff] [blame] | 5634 | bool negotiation; |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5635 | |
| 5636 | adapter->flags |= IXGBE_FLAG_IN_SFP_LINK_TASK; |
Mallikarjuna R Chilakala | a1f2532 | 2009-06-30 11:44:36 +0000 | [diff] [blame] | 5637 | autoneg = hw->phy.autoneg_advertised; |
| 5638 | if ((!autoneg) && (hw->mac.ops.get_link_capabilities)) |
Mallikarjuna R Chilakala | 8620a10 | 2009-09-01 13:49:35 +0000 | [diff] [blame] | 5639 | hw->mac.ops.get_link_capabilities(hw, &autoneg, &negotiation); |
Mallikarjuna R Chilakala | 1097cd1 | 2010-03-18 14:34:52 +0000 | [diff] [blame] | 5640 | hw->mac.autotry_restart = false; |
Mallikarjuna R Chilakala | 8620a10 | 2009-09-01 13:49:35 +0000 | [diff] [blame] | 5641 | if (hw->mac.ops.setup_link) |
| 5642 | hw->mac.ops.setup_link(hw, autoneg, negotiation, true); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5643 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; |
| 5644 | adapter->flags &= ~IXGBE_FLAG_IN_SFP_LINK_TASK; |
| 5645 | } |
| 5646 | |
| 5647 | /** |
| 5648 | * ixgbe_sfp_config_module_task - worker thread to configure a new SFP+ module |
| 5649 | * @work: pointer to work_struct containing our data |
| 5650 | **/ |
| 5651 | static void ixgbe_sfp_config_module_task(struct work_struct *work) |
| 5652 | { |
| 5653 | struct ixgbe_adapter *adapter = container_of(work, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5654 | struct ixgbe_adapter, |
| 5655 | sfp_config_module_task); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5656 | struct ixgbe_hw *hw = &adapter->hw; |
| 5657 | u32 err; |
| 5658 | |
| 5659 | adapter->flags |= IXGBE_FLAG_IN_SFP_MOD_TASK; |
Don Skidmore | 63d6e1d | 2009-07-02 12:50:12 +0000 | [diff] [blame] | 5660 | |
| 5661 | /* Time for electrical oscillations to settle down */ |
| 5662 | msleep(100); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5663 | err = hw->phy.ops.identify_sfp(hw); |
Don Skidmore | 63d6e1d | 2009-07-02 12:50:12 +0000 | [diff] [blame] | 5664 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5665 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 5666 | e_dev_err("failed to initialize because an unsupported SFP+ " |
| 5667 | "module type was detected.\n"); |
| 5668 | e_dev_err("Reload the driver after installing a supported " |
| 5669 | "module.\n"); |
Don Skidmore | 63d6e1d | 2009-07-02 12:50:12 +0000 | [diff] [blame] | 5670 | unregister_netdev(adapter->netdev); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5671 | return; |
| 5672 | } |
| 5673 | hw->mac.ops.setup_sfp(hw); |
| 5674 | |
Tony Breeds | 8d1c3c0 | 2009-04-09 22:29:10 +0000 | [diff] [blame] | 5675 | if (!(adapter->flags & IXGBE_FLAG_IN_SFP_LINK_TASK)) |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5676 | /* This will also work for DA Twinax connections */ |
| 5677 | schedule_work(&adapter->multispeed_fiber_task); |
| 5678 | adapter->flags &= ~IXGBE_FLAG_IN_SFP_MOD_TASK; |
| 5679 | } |
| 5680 | |
| 5681 | /** |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 5682 | * ixgbe_fdir_reinit_task - worker thread to reinit FDIR filter table |
| 5683 | * @work: pointer to work_struct containing our data |
| 5684 | **/ |
| 5685 | static void ixgbe_fdir_reinit_task(struct work_struct *work) |
| 5686 | { |
| 5687 | struct ixgbe_adapter *adapter = container_of(work, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5688 | struct ixgbe_adapter, |
| 5689 | fdir_reinit_task); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 5690 | struct ixgbe_hw *hw = &adapter->hw; |
| 5691 | int i; |
| 5692 | |
| 5693 | if (ixgbe_reinit_fdir_tables_82599(hw) == 0) { |
| 5694 | for (i = 0; i < adapter->num_tx_queues; i++) |
| 5695 | set_bit(__IXGBE_FDIR_INIT_DONE, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5696 | &(adapter->tx_ring[i]->reinit_state)); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 5697 | } else { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 5698 | e_err(probe, "failed to finish FDIR re-initialization, " |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 5699 | "ignored adding FDIR ATR filters\n"); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 5700 | } |
| 5701 | /* Done FDIR Re-initialization, enable transmits */ |
| 5702 | netif_tx_start_all_queues(adapter->netdev); |
| 5703 | } |
| 5704 | |
John Fastabend | 10eec95 | 2010-02-03 14:23:32 +0000 | [diff] [blame] | 5705 | static DEFINE_MUTEX(ixgbe_watchdog_lock); |
| 5706 | |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 5707 | /** |
Alexander Duyck | 6988867 | 2008-09-11 20:05:39 -0700 | [diff] [blame] | 5708 | * ixgbe_watchdog_task - worker thread to bring link up |
| 5709 | * @work: pointer to work_struct containing our data |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5710 | **/ |
| 5711 | static void ixgbe_watchdog_task(struct work_struct *work) |
| 5712 | { |
| 5713 | struct ixgbe_adapter *adapter = container_of(work, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5714 | struct ixgbe_adapter, |
| 5715 | watchdog_task); |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5716 | struct net_device *netdev = adapter->netdev; |
| 5717 | struct ixgbe_hw *hw = &adapter->hw; |
John Fastabend | 10eec95 | 2010-02-03 14:23:32 +0000 | [diff] [blame] | 5718 | u32 link_speed; |
| 5719 | bool link_up; |
Nelson, Shannon | bc59fcd | 2009-04-27 22:43:12 +0000 | [diff] [blame] | 5720 | int i; |
| 5721 | struct ixgbe_ring *tx_ring; |
| 5722 | int some_tx_pending = 0; |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5723 | |
John Fastabend | 10eec95 | 2010-02-03 14:23:32 +0000 | [diff] [blame] | 5724 | mutex_lock(&ixgbe_watchdog_lock); |
| 5725 | |
| 5726 | link_up = adapter->link_up; |
| 5727 | link_speed = adapter->link_speed; |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5728 | |
| 5729 | if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE) { |
| 5730 | hw->mac.ops.check_link(hw, &link_speed, &link_up, false); |
Peter P Waskiewicz Jr | 264857b | 2009-05-17 12:35:16 +0000 | [diff] [blame] | 5731 | if (link_up) { |
| 5732 | #ifdef CONFIG_DCB |
| 5733 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
| 5734 | for (i = 0; i < MAX_TRAFFIC_CLASS; i++) |
Mallikarjuna R Chilakala | 620fa03 | 2009-06-04 11:11:13 +0000 | [diff] [blame] | 5735 | hw->mac.ops.fc_enable(hw, i); |
Peter P Waskiewicz Jr | 264857b | 2009-05-17 12:35:16 +0000 | [diff] [blame] | 5736 | } else { |
Mallikarjuna R Chilakala | 620fa03 | 2009-06-04 11:11:13 +0000 | [diff] [blame] | 5737 | hw->mac.ops.fc_enable(hw, 0); |
Peter P Waskiewicz Jr | 264857b | 2009-05-17 12:35:16 +0000 | [diff] [blame] | 5738 | } |
| 5739 | #else |
Mallikarjuna R Chilakala | 620fa03 | 2009-06-04 11:11:13 +0000 | [diff] [blame] | 5740 | hw->mac.ops.fc_enable(hw, 0); |
Peter P Waskiewicz Jr | 264857b | 2009-05-17 12:35:16 +0000 | [diff] [blame] | 5741 | #endif |
| 5742 | } |
| 5743 | |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5744 | if (link_up || |
| 5745 | time_after(jiffies, (adapter->link_check_timeout + |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5746 | IXGBE_TRY_LINK_TIMEOUT))) { |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5747 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE; |
Peter P Waskiewicz Jr | 264857b | 2009-05-17 12:35:16 +0000 | [diff] [blame] | 5748 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMC_LSC); |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5749 | } |
| 5750 | adapter->link_up = link_up; |
| 5751 | adapter->link_speed = link_speed; |
| 5752 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5753 | |
| 5754 | if (link_up) { |
| 5755 | if (!netif_carrier_ok(netdev)) { |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5756 | bool flow_rx, flow_tx; |
| 5757 | |
| 5758 | if (hw->mac.type == ixgbe_mac_82599EB) { |
| 5759 | u32 mflcn = IXGBE_READ_REG(hw, IXGBE_MFLCN); |
| 5760 | u32 fccfg = IXGBE_READ_REG(hw, IXGBE_FCCFG); |
Peter P Waskiewicz Jr | 078788b | 2009-07-16 15:50:32 +0000 | [diff] [blame] | 5761 | flow_rx = !!(mflcn & IXGBE_MFLCN_RFCE); |
| 5762 | flow_tx = !!(fccfg & IXGBE_FCCFG_TFCE_802_3X); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5763 | } else { |
| 5764 | u32 frctl = IXGBE_READ_REG(hw, IXGBE_FCTRL); |
| 5765 | u32 rmcs = IXGBE_READ_REG(hw, IXGBE_RMCS); |
Peter P Waskiewicz Jr | 078788b | 2009-07-16 15:50:32 +0000 | [diff] [blame] | 5766 | flow_rx = !!(frctl & IXGBE_FCTRL_RFCE); |
| 5767 | flow_tx = !!(rmcs & IXGBE_RMCS_TFCE_802_3X); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5768 | } |
| 5769 | |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 5770 | e_info(drv, "NIC Link is Up %s, Flow Control: %s\n", |
Jeff Kirsher | a46e534 | 2008-11-27 00:22:21 -0800 | [diff] [blame] | 5771 | (link_speed == IXGBE_LINK_SPEED_10GB_FULL ? |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 5772 | "10 Gbps" : |
| 5773 | (link_speed == IXGBE_LINK_SPEED_1GB_FULL ? |
| 5774 | "1 Gbps" : "unknown speed")), |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 5775 | ((flow_rx && flow_tx) ? "RX/TX" : |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 5776 | (flow_rx ? "RX" : |
| 5777 | (flow_tx ? "TX" : "None")))); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5778 | |
| 5779 | netif_carrier_on(netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5780 | } else { |
| 5781 | /* Force detection of hung controller */ |
| 5782 | adapter->detect_tx_hung = true; |
| 5783 | } |
| 5784 | } else { |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 5785 | adapter->link_up = false; |
| 5786 | adapter->link_speed = 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5787 | if (netif_carrier_ok(netdev)) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 5788 | e_info(drv, "NIC Link is Down\n"); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5789 | netif_carrier_off(netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5790 | } |
| 5791 | } |
| 5792 | |
Nelson, Shannon | bc59fcd | 2009-04-27 22:43:12 +0000 | [diff] [blame] | 5793 | if (!netif_carrier_ok(netdev)) { |
| 5794 | for (i = 0; i < adapter->num_tx_queues; i++) { |
PJ Waskiewicz | 4a0b9ca | 2010-02-03 14:19:12 +0000 | [diff] [blame] | 5795 | tx_ring = adapter->tx_ring[i]; |
Nelson, Shannon | bc59fcd | 2009-04-27 22:43:12 +0000 | [diff] [blame] | 5796 | if (tx_ring->next_to_use != tx_ring->next_to_clean) { |
| 5797 | some_tx_pending = 1; |
| 5798 | break; |
| 5799 | } |
| 5800 | } |
| 5801 | |
| 5802 | if (some_tx_pending) { |
| 5803 | /* We've lost link, so the controller stops DMA, |
| 5804 | * but we've got queued Tx work that's never going |
| 5805 | * to get done, so reset controller to flush Tx. |
| 5806 | * (Do the reset outside of interrupt context). |
| 5807 | */ |
| 5808 | schedule_work(&adapter->reset_task); |
| 5809 | } |
| 5810 | } |
| 5811 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5812 | ixgbe_update_stats(adapter); |
John Fastabend | 10eec95 | 2010-02-03 14:23:32 +0000 | [diff] [blame] | 5813 | mutex_unlock(&ixgbe_watchdog_lock); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5814 | } |
| 5815 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5816 | static int ixgbe_tso(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5817 | struct ixgbe_ring *tx_ring, struct sk_buff *skb, |
| 5818 | u32 tx_flags, u8 *hdr_len) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5819 | { |
| 5820 | struct ixgbe_adv_tx_context_desc *context_desc; |
| 5821 | unsigned int i; |
| 5822 | int err; |
| 5823 | struct ixgbe_tx_buffer *tx_buffer_info; |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 5824 | u32 vlan_macip_lens = 0, type_tucmd_mlhl; |
| 5825 | u32 mss_l4len_idx, l4len; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5826 | |
| 5827 | if (skb_is_gso(skb)) { |
| 5828 | if (skb_header_cloned(skb)) { |
| 5829 | err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); |
| 5830 | if (err) |
| 5831 | return err; |
| 5832 | } |
| 5833 | l4len = tcp_hdrlen(skb); |
| 5834 | *hdr_len += l4len; |
| 5835 | |
Al Viro | 8327d00 | 2007-12-10 18:54:12 +0000 | [diff] [blame] | 5836 | if (skb->protocol == htons(ETH_P_IP)) { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5837 | struct iphdr *iph = ip_hdr(skb); |
| 5838 | iph->tot_len = 0; |
| 5839 | iph->check = 0; |
| 5840 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5841 | iph->daddr, 0, |
| 5842 | IPPROTO_TCP, |
| 5843 | 0); |
Sridhar Samudrala | 8e1e8a4 | 2010-01-23 02:02:21 -0800 | [diff] [blame] | 5844 | } else if (skb_is_gso_v6(skb)) { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5845 | ipv6_hdr(skb)->payload_len = 0; |
| 5846 | tcp_hdr(skb)->check = |
| 5847 | ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5848 | &ipv6_hdr(skb)->daddr, |
| 5849 | 0, IPPROTO_TCP, 0); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5850 | } |
| 5851 | |
| 5852 | i = tx_ring->next_to_use; |
| 5853 | |
| 5854 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 5855 | context_desc = IXGBE_TX_CTXTDESC_ADV(tx_ring, i); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5856 | |
| 5857 | /* VLAN MACLEN IPLEN */ |
| 5858 | if (tx_flags & IXGBE_TX_FLAGS_VLAN) |
| 5859 | vlan_macip_lens |= |
| 5860 | (tx_flags & IXGBE_TX_FLAGS_VLAN_MASK); |
| 5861 | vlan_macip_lens |= ((skb_network_offset(skb)) << |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5862 | IXGBE_ADVTXD_MACLEN_SHIFT); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5863 | *hdr_len += skb_network_offset(skb); |
| 5864 | vlan_macip_lens |= |
| 5865 | (skb_transport_header(skb) - skb_network_header(skb)); |
| 5866 | *hdr_len += |
| 5867 | (skb_transport_header(skb) - skb_network_header(skb)); |
| 5868 | context_desc->vlan_macip_lens = cpu_to_le32(vlan_macip_lens); |
| 5869 | context_desc->seqnum_seed = 0; |
| 5870 | |
| 5871 | /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */ |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 5872 | type_tucmd_mlhl = (IXGBE_TXD_CMD_DEXT | |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5873 | IXGBE_ADVTXD_DTYP_CTXT); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5874 | |
Al Viro | 8327d00 | 2007-12-10 18:54:12 +0000 | [diff] [blame] | 5875 | if (skb->protocol == htons(ETH_P_IP)) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5876 | type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_IPV4; |
| 5877 | type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_TCP; |
| 5878 | context_desc->type_tucmd_mlhl = cpu_to_le32(type_tucmd_mlhl); |
| 5879 | |
| 5880 | /* MSS L4LEN IDX */ |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 5881 | mss_l4len_idx = |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5882 | (skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT); |
| 5883 | mss_l4len_idx |= (l4len << IXGBE_ADVTXD_L4LEN_SHIFT); |
PJ Waskiewicz | 4eeae6f | 2008-08-26 04:27:30 -0700 | [diff] [blame] | 5884 | /* use index 1 for TSO */ |
| 5885 | mss_l4len_idx |= (1 << IXGBE_ADVTXD_IDX_SHIFT); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5886 | context_desc->mss_l4len_idx = cpu_to_le32(mss_l4len_idx); |
| 5887 | |
| 5888 | tx_buffer_info->time_stamp = jiffies; |
| 5889 | tx_buffer_info->next_to_watch = i; |
| 5890 | |
| 5891 | i++; |
| 5892 | if (i == tx_ring->count) |
| 5893 | i = 0; |
| 5894 | tx_ring->next_to_use = i; |
| 5895 | |
| 5896 | return true; |
| 5897 | } |
| 5898 | return false; |
| 5899 | } |
| 5900 | |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5901 | static u32 ixgbe_psum(struct ixgbe_adapter *adapter, struct sk_buff *skb) |
| 5902 | { |
| 5903 | u32 rtn = 0; |
| 5904 | __be16 protocol; |
| 5905 | |
| 5906 | if (skb->protocol == cpu_to_be16(ETH_P_8021Q)) |
| 5907 | protocol = ((const struct vlan_ethhdr *)skb->data)-> |
| 5908 | h_vlan_encapsulated_proto; |
| 5909 | else |
| 5910 | protocol = skb->protocol; |
| 5911 | |
| 5912 | switch (protocol) { |
| 5913 | case cpu_to_be16(ETH_P_IP): |
| 5914 | rtn |= IXGBE_ADVTXD_TUCMD_IPV4; |
| 5915 | switch (ip_hdr(skb)->protocol) { |
| 5916 | case IPPROTO_TCP: |
| 5917 | rtn |= IXGBE_ADVTXD_TUCMD_L4T_TCP; |
| 5918 | break; |
| 5919 | case IPPROTO_SCTP: |
| 5920 | rtn |= IXGBE_ADVTXD_TUCMD_L4T_SCTP; |
| 5921 | break; |
| 5922 | } |
| 5923 | break; |
| 5924 | case cpu_to_be16(ETH_P_IPV6): |
| 5925 | /* XXX what about other V6 headers?? */ |
| 5926 | switch (ipv6_hdr(skb)->nexthdr) { |
| 5927 | case IPPROTO_TCP: |
| 5928 | rtn |= IXGBE_ADVTXD_TUCMD_L4T_TCP; |
| 5929 | break; |
| 5930 | case IPPROTO_SCTP: |
| 5931 | rtn |= IXGBE_ADVTXD_TUCMD_L4T_SCTP; |
| 5932 | break; |
| 5933 | } |
| 5934 | break; |
| 5935 | default: |
| 5936 | if (unlikely(net_ratelimit())) |
| 5937 | e_warn(probe, "partial checksum but proto=%x!\n", |
| 5938 | skb->protocol); |
| 5939 | break; |
| 5940 | } |
| 5941 | |
| 5942 | return rtn; |
| 5943 | } |
| 5944 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5945 | static bool ixgbe_tx_csum(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5946 | struct ixgbe_ring *tx_ring, |
| 5947 | struct sk_buff *skb, u32 tx_flags) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5948 | { |
| 5949 | struct ixgbe_adv_tx_context_desc *context_desc; |
| 5950 | unsigned int i; |
| 5951 | struct ixgbe_tx_buffer *tx_buffer_info; |
| 5952 | u32 vlan_macip_lens = 0, type_tucmd_mlhl = 0; |
| 5953 | |
| 5954 | if (skb->ip_summed == CHECKSUM_PARTIAL || |
| 5955 | (tx_flags & IXGBE_TX_FLAGS_VLAN)) { |
| 5956 | i = tx_ring->next_to_use; |
| 5957 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 5958 | context_desc = IXGBE_TX_CTXTDESC_ADV(tx_ring, i); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5959 | |
| 5960 | if (tx_flags & IXGBE_TX_FLAGS_VLAN) |
| 5961 | vlan_macip_lens |= |
| 5962 | (tx_flags & IXGBE_TX_FLAGS_VLAN_MASK); |
| 5963 | vlan_macip_lens |= (skb_network_offset(skb) << |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5964 | IXGBE_ADVTXD_MACLEN_SHIFT); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5965 | if (skb->ip_summed == CHECKSUM_PARTIAL) |
| 5966 | vlan_macip_lens |= (skb_transport_header(skb) - |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5967 | skb_network_header(skb)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5968 | |
| 5969 | context_desc->vlan_macip_lens = cpu_to_le32(vlan_macip_lens); |
| 5970 | context_desc->seqnum_seed = 0; |
| 5971 | |
| 5972 | type_tucmd_mlhl |= (IXGBE_TXD_CMD_DEXT | |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5973 | IXGBE_ADVTXD_DTYP_CTXT); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5974 | |
Joe Perches | 7ca647b | 2010-09-07 21:35:40 +0000 | [diff] [blame] | 5975 | if (skb->ip_summed == CHECKSUM_PARTIAL) |
| 5976 | type_tucmd_mlhl |= ixgbe_psum(adapter, skb); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5977 | |
| 5978 | context_desc->type_tucmd_mlhl = cpu_to_le32(type_tucmd_mlhl); |
PJ Waskiewicz | 4eeae6f | 2008-08-26 04:27:30 -0700 | [diff] [blame] | 5979 | /* use index zero for tx checksum offload */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5980 | context_desc->mss_l4len_idx = 0; |
| 5981 | |
| 5982 | tx_buffer_info->time_stamp = jiffies; |
| 5983 | tx_buffer_info->next_to_watch = i; |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 5984 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5985 | i++; |
| 5986 | if (i == tx_ring->count) |
| 5987 | i = 0; |
| 5988 | tx_ring->next_to_use = i; |
| 5989 | |
| 5990 | return true; |
| 5991 | } |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 5992 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 5993 | return false; |
| 5994 | } |
| 5995 | |
| 5996 | static int ixgbe_tx_map(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 5997 | struct ixgbe_ring *tx_ring, |
| 5998 | struct sk_buff *skb, u32 tx_flags, |
| 5999 | unsigned int first) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6000 | { |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6001 | struct pci_dev *pdev = adapter->pdev; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6002 | struct ixgbe_tx_buffer *tx_buffer_info; |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6003 | unsigned int len; |
| 6004 | unsigned int total = skb->len; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6005 | unsigned int offset = 0, size, count = 0, i; |
| 6006 | unsigned int nr_frags = skb_shinfo(skb)->nr_frags; |
| 6007 | unsigned int f; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6008 | |
| 6009 | i = tx_ring->next_to_use; |
| 6010 | |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6011 | if (tx_flags & IXGBE_TX_FLAGS_FCOE) |
| 6012 | /* excluding fcoe_crc_eof for FCoE */ |
| 6013 | total -= sizeof(struct fcoe_crc_eof); |
| 6014 | |
| 6015 | len = min(skb_headlen(skb), total); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6016 | while (len) { |
| 6017 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
| 6018 | size = min(len, (uint)IXGBE_MAX_DATA_PER_TXD); |
| 6019 | |
| 6020 | tx_buffer_info->length = size; |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6021 | tx_buffer_info->mapped_as_page = false; |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 6022 | tx_buffer_info->dma = dma_map_single(&pdev->dev, |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6023 | skb->data + offset, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 6024 | size, DMA_TO_DEVICE); |
| 6025 | if (dma_mapping_error(&pdev->dev, tx_buffer_info->dma)) |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6026 | goto dma_error; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6027 | tx_buffer_info->time_stamp = jiffies; |
| 6028 | tx_buffer_info->next_to_watch = i; |
| 6029 | |
| 6030 | len -= size; |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6031 | total -= size; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6032 | offset += size; |
| 6033 | count++; |
Alexander Duyck | 44df32c | 2009-03-31 21:34:23 +0000 | [diff] [blame] | 6034 | |
| 6035 | if (len) { |
| 6036 | i++; |
| 6037 | if (i == tx_ring->count) |
| 6038 | i = 0; |
| 6039 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6040 | } |
| 6041 | |
| 6042 | for (f = 0; f < nr_frags; f++) { |
| 6043 | struct skb_frag_struct *frag; |
| 6044 | |
| 6045 | frag = &skb_shinfo(skb)->frags[f]; |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6046 | len = min((unsigned int)frag->size, total); |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6047 | offset = frag->page_offset; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6048 | |
| 6049 | while (len) { |
Alexander Duyck | 44df32c | 2009-03-31 21:34:23 +0000 | [diff] [blame] | 6050 | i++; |
| 6051 | if (i == tx_ring->count) |
| 6052 | i = 0; |
| 6053 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6054 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
| 6055 | size = min(len, (uint)IXGBE_MAX_DATA_PER_TXD); |
| 6056 | |
| 6057 | tx_buffer_info->length = size; |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 6058 | tx_buffer_info->dma = dma_map_page(&adapter->pdev->dev, |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6059 | frag->page, |
| 6060 | offset, size, |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 6061 | DMA_TO_DEVICE); |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6062 | tx_buffer_info->mapped_as_page = true; |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 6063 | if (dma_mapping_error(&pdev->dev, tx_buffer_info->dma)) |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6064 | goto dma_error; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6065 | tx_buffer_info->time_stamp = jiffies; |
| 6066 | tx_buffer_info->next_to_watch = i; |
| 6067 | |
| 6068 | len -= size; |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6069 | total -= size; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6070 | offset += size; |
| 6071 | count++; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6072 | } |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6073 | if (total == 0) |
| 6074 | break; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6075 | } |
Alexander Duyck | 44df32c | 2009-03-31 21:34:23 +0000 | [diff] [blame] | 6076 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6077 | tx_ring->tx_buffer_info[i].skb = skb; |
| 6078 | tx_ring->tx_buffer_info[first].next_to_watch = i; |
| 6079 | |
| 6080 | return count; |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6081 | |
| 6082 | dma_error: |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 6083 | e_dev_err("TX DMA map failed\n"); |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6084 | |
| 6085 | /* clear timestamp and dma mappings for failed tx_buffer_info map */ |
| 6086 | tx_buffer_info->dma = 0; |
| 6087 | tx_buffer_info->time_stamp = 0; |
| 6088 | tx_buffer_info->next_to_watch = 0; |
Roel Kluin | c1fa347 | 2010-01-19 14:21:45 +0000 | [diff] [blame] | 6089 | if (count) |
| 6090 | count--; |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6091 | |
| 6092 | /* clear timestamp and dma mappings for remaining portion of packet */ |
Roel Kluin | c1fa347 | 2010-01-19 14:21:45 +0000 | [diff] [blame] | 6093 | while (count--) { |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6094 | if (i == 0) |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6095 | i += tx_ring->count; |
Roel Kluin | c1fa347 | 2010-01-19 14:21:45 +0000 | [diff] [blame] | 6096 | i--; |
Alexander Duyck | e5a4354 | 2009-12-02 16:46:56 +0000 | [diff] [blame] | 6097 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
| 6098 | ixgbe_unmap_and_free_tx_resource(adapter, tx_buffer_info); |
| 6099 | } |
| 6100 | |
Anton Blanchard | e44d38e | 2010-02-03 13:12:51 +0000 | [diff] [blame] | 6101 | return 0; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6102 | } |
| 6103 | |
| 6104 | static void ixgbe_tx_queue(struct ixgbe_adapter *adapter, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6105 | struct ixgbe_ring *tx_ring, |
| 6106 | int tx_flags, int count, u32 paylen, u8 hdr_len) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6107 | { |
| 6108 | union ixgbe_adv_tx_desc *tx_desc = NULL; |
| 6109 | struct ixgbe_tx_buffer *tx_buffer_info; |
| 6110 | u32 olinfo_status = 0, cmd_type_len = 0; |
| 6111 | unsigned int i; |
| 6112 | u32 txd_cmd = IXGBE_TXD_CMD_EOP | IXGBE_TXD_CMD_RS | IXGBE_TXD_CMD_IFCS; |
| 6113 | |
| 6114 | cmd_type_len |= IXGBE_ADVTXD_DTYP_DATA; |
| 6115 | |
| 6116 | cmd_type_len |= IXGBE_ADVTXD_DCMD_IFCS | IXGBE_ADVTXD_DCMD_DEXT; |
| 6117 | |
| 6118 | if (tx_flags & IXGBE_TX_FLAGS_VLAN) |
| 6119 | cmd_type_len |= IXGBE_ADVTXD_DCMD_VLE; |
| 6120 | |
| 6121 | if (tx_flags & IXGBE_TX_FLAGS_TSO) { |
| 6122 | cmd_type_len |= IXGBE_ADVTXD_DCMD_TSE; |
| 6123 | |
| 6124 | olinfo_status |= IXGBE_TXD_POPTS_TXSM << |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6125 | IXGBE_ADVTXD_POPTS_SHIFT; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6126 | |
PJ Waskiewicz | 4eeae6f | 2008-08-26 04:27:30 -0700 | [diff] [blame] | 6127 | /* use index 1 context for tso */ |
| 6128 | olinfo_status |= (1 << IXGBE_ADVTXD_IDX_SHIFT); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6129 | if (tx_flags & IXGBE_TX_FLAGS_IPV4) |
| 6130 | olinfo_status |= IXGBE_TXD_POPTS_IXSM << |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6131 | IXGBE_ADVTXD_POPTS_SHIFT; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6132 | |
| 6133 | } else if (tx_flags & IXGBE_TX_FLAGS_CSUM) |
| 6134 | olinfo_status |= IXGBE_TXD_POPTS_TXSM << |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6135 | IXGBE_ADVTXD_POPTS_SHIFT; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6136 | |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6137 | if (tx_flags & IXGBE_TX_FLAGS_FCOE) { |
| 6138 | olinfo_status |= IXGBE_ADVTXD_CC; |
| 6139 | olinfo_status |= (1 << IXGBE_ADVTXD_IDX_SHIFT); |
| 6140 | if (tx_flags & IXGBE_TX_FLAGS_FSO) |
| 6141 | cmd_type_len |= IXGBE_ADVTXD_DCMD_TSE; |
| 6142 | } |
| 6143 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6144 | olinfo_status |= ((paylen - hdr_len) << IXGBE_ADVTXD_PAYLEN_SHIFT); |
| 6145 | |
| 6146 | i = tx_ring->next_to_use; |
| 6147 | while (count--) { |
| 6148 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
Alexander Duyck | 31f05a2 | 2010-08-19 13:40:31 +0000 | [diff] [blame] | 6149 | tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6150 | tx_desc->read.buffer_addr = cpu_to_le64(tx_buffer_info->dma); |
| 6151 | tx_desc->read.cmd_type_len = |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6152 | cpu_to_le32(cmd_type_len | tx_buffer_info->length); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6153 | tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6154 | i++; |
| 6155 | if (i == tx_ring->count) |
| 6156 | i = 0; |
| 6157 | } |
| 6158 | |
| 6159 | tx_desc->read.cmd_type_len |= cpu_to_le32(txd_cmd); |
| 6160 | |
| 6161 | /* |
| 6162 | * Force memory writes to complete before letting h/w |
| 6163 | * know there are new descriptors to fetch. (Only |
| 6164 | * applicable for weak-ordered memory model archs, |
| 6165 | * such as IA-64). |
| 6166 | */ |
| 6167 | wmb(); |
| 6168 | |
| 6169 | tx_ring->next_to_use = i; |
| 6170 | writel(i, adapter->hw.hw_addr + tx_ring->tail); |
| 6171 | } |
| 6172 | |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6173 | static void ixgbe_atr(struct ixgbe_adapter *adapter, struct sk_buff *skb, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6174 | int queue, u32 tx_flags) |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6175 | { |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6176 | struct ixgbe_atr_input atr_input; |
| 6177 | struct tcphdr *th; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6178 | struct iphdr *iph = ip_hdr(skb); |
| 6179 | struct ethhdr *eth = (struct ethhdr *)skb->data; |
| 6180 | u16 vlan_id, src_port, dst_port, flex_bytes; |
| 6181 | u32 src_ipv4_addr, dst_ipv4_addr; |
| 6182 | u8 l4type = 0; |
| 6183 | |
Guillaume Gaudonville | d3ead24 | 2010-06-29 18:29:00 +0000 | [diff] [blame] | 6184 | /* Right now, we support IPv4 only */ |
| 6185 | if (skb->protocol != htons(ETH_P_IP)) |
| 6186 | return; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6187 | /* check if we're UDP or TCP */ |
| 6188 | if (iph->protocol == IPPROTO_TCP) { |
| 6189 | th = tcp_hdr(skb); |
| 6190 | src_port = th->source; |
| 6191 | dst_port = th->dest; |
| 6192 | l4type |= IXGBE_ATR_L4TYPE_TCP; |
| 6193 | /* l4type IPv4 type is 0, no need to assign */ |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6194 | } else { |
| 6195 | /* Unsupported L4 header, just bail here */ |
| 6196 | return; |
| 6197 | } |
| 6198 | |
| 6199 | memset(&atr_input, 0, sizeof(struct ixgbe_atr_input)); |
| 6200 | |
| 6201 | vlan_id = (tx_flags & IXGBE_TX_FLAGS_VLAN_MASK) >> |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6202 | IXGBE_TX_FLAGS_VLAN_SHIFT; |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6203 | src_ipv4_addr = iph->saddr; |
| 6204 | dst_ipv4_addr = iph->daddr; |
| 6205 | flex_bytes = eth->h_proto; |
| 6206 | |
| 6207 | ixgbe_atr_set_vlan_id_82599(&atr_input, vlan_id); |
| 6208 | ixgbe_atr_set_src_port_82599(&atr_input, dst_port); |
| 6209 | ixgbe_atr_set_dst_port_82599(&atr_input, src_port); |
| 6210 | ixgbe_atr_set_flex_byte_82599(&atr_input, flex_bytes); |
| 6211 | ixgbe_atr_set_l4type_82599(&atr_input, l4type); |
| 6212 | /* src and dst are inverted, think how the receiver sees them */ |
| 6213 | ixgbe_atr_set_src_ipv4_82599(&atr_input, dst_ipv4_addr); |
| 6214 | ixgbe_atr_set_dst_ipv4_82599(&atr_input, src_ipv4_addr); |
| 6215 | |
| 6216 | /* This assumes the Rx queue and Tx queue are bound to the same CPU */ |
| 6217 | ixgbe_fdir_add_signature_filter_82599(&adapter->hw, &atr_input, queue); |
| 6218 | } |
| 6219 | |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 6220 | static int __ixgbe_maybe_stop_tx(struct net_device *netdev, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6221 | struct ixgbe_ring *tx_ring, int size) |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 6222 | { |
Ayyappan Veeraiyan | 30eba97 | 2008-03-03 15:03:52 -0800 | [diff] [blame] | 6223 | netif_stop_subqueue(netdev, tx_ring->queue_index); |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 6224 | /* Herbert's original patch had: |
| 6225 | * smp_mb__after_netif_stop_queue(); |
| 6226 | * but since that doesn't exist yet, just open code it. */ |
| 6227 | smp_mb(); |
| 6228 | |
| 6229 | /* We need to check again in a case another CPU has just |
| 6230 | * made room available. */ |
| 6231 | if (likely(IXGBE_DESC_UNUSED(tx_ring) < size)) |
| 6232 | return -EBUSY; |
| 6233 | |
| 6234 | /* A reprieve! - use start_queue because it doesn't call schedule */ |
Jesse Brandeburg | af72166 | 2008-09-11 19:54:23 -0700 | [diff] [blame] | 6235 | netif_start_subqueue(netdev, tx_ring->queue_index); |
Jesse Brandeburg | 7ca3bc5 | 2009-12-03 11:33:29 +0000 | [diff] [blame] | 6236 | ++tx_ring->restart_queue; |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 6237 | return 0; |
| 6238 | } |
| 6239 | |
| 6240 | static int ixgbe_maybe_stop_tx(struct net_device *netdev, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6241 | struct ixgbe_ring *tx_ring, int size) |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 6242 | { |
| 6243 | if (likely(IXGBE_DESC_UNUSED(tx_ring) >= size)) |
| 6244 | return 0; |
| 6245 | return __ixgbe_maybe_stop_tx(netdev, tx_ring, size); |
| 6246 | } |
| 6247 | |
Stephen Hemminger | 09a3b1f | 2009-03-21 13:40:01 -0700 | [diff] [blame] | 6248 | static u16 ixgbe_select_queue(struct net_device *dev, struct sk_buff *skb) |
| 6249 | { |
| 6250 | struct ixgbe_adapter *adapter = netdev_priv(dev); |
Yi Zou | 5f71582 | 2009-12-03 11:32:44 +0000 | [diff] [blame] | 6251 | int txq = smp_processor_id(); |
Stephen Hemminger | 09a3b1f | 2009-03-21 13:40:01 -0700 | [diff] [blame] | 6252 | |
John Fastabend | 56075a9 | 2010-07-26 20:41:31 +0000 | [diff] [blame] | 6253 | #ifdef IXGBE_FCOE |
| 6254 | if ((skb->protocol == htons(ETH_P_FCOE)) || |
| 6255 | (skb->protocol == htons(ETH_P_FIP))) { |
| 6256 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { |
| 6257 | txq &= (adapter->ring_feature[RING_F_FCOE].indices - 1); |
| 6258 | txq += adapter->ring_feature[RING_F_FCOE].mask; |
| 6259 | return txq; |
John Fastabend | 4bc091d | 2010-08-08 15:46:15 +0000 | [diff] [blame] | 6260 | #ifdef CONFIG_IXGBE_DCB |
John Fastabend | 56075a9 | 2010-07-26 20:41:31 +0000 | [diff] [blame] | 6261 | } else if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
| 6262 | txq = adapter->fcoe.up; |
| 6263 | return txq; |
John Fastabend | 4bc091d | 2010-08-08 15:46:15 +0000 | [diff] [blame] | 6264 | #endif |
John Fastabend | 56075a9 | 2010-07-26 20:41:31 +0000 | [diff] [blame] | 6265 | } |
| 6266 | } |
| 6267 | #endif |
| 6268 | |
Krishna Kumar | fdd3d63 | 2010-02-03 13:13:10 +0000 | [diff] [blame] | 6269 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
| 6270 | while (unlikely(txq >= dev->real_num_tx_queues)) |
| 6271 | txq -= dev->real_num_tx_queues; |
Yi Zou | 5f71582 | 2009-12-03 11:32:44 +0000 | [diff] [blame] | 6272 | return txq; |
Krishna Kumar | fdd3d63 | 2010-02-03 13:13:10 +0000 | [diff] [blame] | 6273 | } |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6274 | |
John Fastabend | 2ea186a | 2010-02-27 03:28:24 -0800 | [diff] [blame] | 6275 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
| 6276 | if (skb->priority == TC_PRIO_CONTROL) |
| 6277 | txq = adapter->ring_feature[RING_F_DCB].indices-1; |
| 6278 | else |
| 6279 | txq = (skb->vlan_tci & IXGBE_TX_FLAGS_VLAN_PRIO_MASK) |
| 6280 | >> 13; |
| 6281 | return txq; |
| 6282 | } |
Stephen Hemminger | 09a3b1f | 2009-03-21 13:40:01 -0700 | [diff] [blame] | 6283 | |
| 6284 | return skb_tx_hash(dev, skb); |
| 6285 | } |
| 6286 | |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 6287 | netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb, struct net_device *netdev, |
| 6288 | struct ixgbe_adapter *adapter, |
| 6289 | struct ixgbe_ring *tx_ring) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6290 | { |
Eric Dumazet | 60d5113 | 2009-12-08 07:22:03 +0000 | [diff] [blame] | 6291 | struct netdev_queue *txq; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6292 | unsigned int first; |
| 6293 | unsigned int tx_flags = 0; |
Ayyappan Veeraiyan | 30eba97 | 2008-03-03 15:03:52 -0800 | [diff] [blame] | 6294 | u8 hdr_len = 0; |
Yi Zou | 5f71582 | 2009-12-03 11:32:44 +0000 | [diff] [blame] | 6295 | int tso; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6296 | int count = 0; |
| 6297 | unsigned int f; |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 6298 | |
Jesse Gross | eab6d18 | 2010-10-20 13:56:03 +0000 | [diff] [blame] | 6299 | if (vlan_tx_tag_present(skb)) { |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 6300 | tx_flags |= vlan_tx_tag_get(skb); |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 6301 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
| 6302 | tx_flags &= ~IXGBE_TX_FLAGS_VLAN_PRIO_MASK; |
Yi Zou | 5f71582 | 2009-12-03 11:32:44 +0000 | [diff] [blame] | 6303 | tx_flags |= ((skb->queue_mapping & 0x7) << 13); |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 6304 | } |
| 6305 | tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT; |
| 6306 | tx_flags |= IXGBE_TX_FLAGS_VLAN; |
John Fastabend | 33c66bd | 2010-05-18 16:00:11 +0000 | [diff] [blame] | 6307 | } else if (adapter->flags & IXGBE_FLAG_DCB_ENABLED && |
| 6308 | skb->priority != TC_PRIO_CONTROL) { |
John Fastabend | 2ea186a | 2010-02-27 03:28:24 -0800 | [diff] [blame] | 6309 | tx_flags |= ((skb->queue_mapping & 0x7) << 13); |
| 6310 | tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT; |
| 6311 | tx_flags |= IXGBE_TX_FLAGS_VLAN; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6312 | } |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6313 | |
Yi Zou | 09ad1cc | 2009-09-03 14:56:10 +0000 | [diff] [blame] | 6314 | #ifdef IXGBE_FCOE |
John Fastabend | 56075a9 | 2010-07-26 20:41:31 +0000 | [diff] [blame] | 6315 | /* for FCoE with DCB, we force the priority to what |
| 6316 | * was specified by the switch */ |
| 6317 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED && |
| 6318 | (skb->protocol == htons(ETH_P_FCOE) || |
| 6319 | skb->protocol == htons(ETH_P_FIP))) { |
John Fastabend | 4bc091d | 2010-08-08 15:46:15 +0000 | [diff] [blame] | 6320 | #ifdef CONFIG_IXGBE_DCB |
| 6321 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
| 6322 | tx_flags &= ~(IXGBE_TX_FLAGS_VLAN_PRIO_MASK |
| 6323 | << IXGBE_TX_FLAGS_VLAN_SHIFT); |
| 6324 | tx_flags |= ((adapter->fcoe.up << 13) |
| 6325 | << IXGBE_TX_FLAGS_VLAN_SHIFT); |
| 6326 | } |
| 6327 | #endif |
Robert Love | ca77cd5 | 2010-03-24 12:45:00 +0000 | [diff] [blame] | 6328 | /* flag for FCoE offloads */ |
| 6329 | if (skb->protocol == htons(ETH_P_FCOE)) |
| 6330 | tx_flags |= IXGBE_TX_FLAGS_FCOE; |
Yi Zou | 09ad1cc | 2009-09-03 14:56:10 +0000 | [diff] [blame] | 6331 | } |
Robert Love | ca77cd5 | 2010-03-24 12:45:00 +0000 | [diff] [blame] | 6332 | #endif |
| 6333 | |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6334 | /* four things can cause us to need a context descriptor */ |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 6335 | if (skb_is_gso(skb) || |
| 6336 | (skb->ip_summed == CHECKSUM_PARTIAL) || |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6337 | (tx_flags & IXGBE_TX_FLAGS_VLAN) || |
| 6338 | (tx_flags & IXGBE_TX_FLAGS_FCOE)) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6339 | count++; |
| 6340 | |
Jesse Brandeburg | 9f8cdf4 | 2008-09-11 20:03:35 -0700 | [diff] [blame] | 6341 | count += TXD_USE_COUNT(skb_headlen(skb)); |
| 6342 | for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6343 | count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size); |
| 6344 | |
Ayyappan Veeraiyan | e092be6 | 2008-02-01 15:58:49 -0800 | [diff] [blame] | 6345 | if (ixgbe_maybe_stop_tx(netdev, tx_ring, count)) { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6346 | adapter->tx_busy++; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6347 | return NETDEV_TX_BUSY; |
| 6348 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6349 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6350 | first = tx_ring->next_to_use; |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6351 | if (tx_flags & IXGBE_TX_FLAGS_FCOE) { |
| 6352 | #ifdef IXGBE_FCOE |
| 6353 | /* setup tx offload for FCoE */ |
| 6354 | tso = ixgbe_fso(adapter, tx_ring, skb, tx_flags, &hdr_len); |
| 6355 | if (tso < 0) { |
| 6356 | dev_kfree_skb_any(skb); |
| 6357 | return NETDEV_TX_OK; |
| 6358 | } |
| 6359 | if (tso) |
| 6360 | tx_flags |= IXGBE_TX_FLAGS_FSO; |
| 6361 | #endif /* IXGBE_FCOE */ |
| 6362 | } else { |
| 6363 | if (skb->protocol == htons(ETH_P_IP)) |
| 6364 | tx_flags |= IXGBE_TX_FLAGS_IPV4; |
| 6365 | tso = ixgbe_tso(adapter, tx_ring, skb, tx_flags, &hdr_len); |
| 6366 | if (tso < 0) { |
| 6367 | dev_kfree_skb_any(skb); |
| 6368 | return NETDEV_TX_OK; |
| 6369 | } |
| 6370 | |
| 6371 | if (tso) |
| 6372 | tx_flags |= IXGBE_TX_FLAGS_TSO; |
| 6373 | else if (ixgbe_tx_csum(adapter, tx_ring, skb, tx_flags) && |
| 6374 | (skb->ip_summed == CHECKSUM_PARTIAL)) |
| 6375 | tx_flags |= IXGBE_TX_FLAGS_CSUM; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6376 | } |
| 6377 | |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6378 | count = ixgbe_tx_map(adapter, tx_ring, skb, tx_flags, first); |
Alexander Duyck | 44df32c | 2009-03-31 21:34:23 +0000 | [diff] [blame] | 6379 | if (count) { |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6380 | /* add the ATR filter if ATR is on */ |
| 6381 | if (tx_ring->atr_sample_rate) { |
| 6382 | ++tx_ring->atr_count; |
| 6383 | if ((tx_ring->atr_count >= tx_ring->atr_sample_rate) && |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6384 | test_bit(__IXGBE_FDIR_INIT_DONE, |
| 6385 | &tx_ring->reinit_state)) { |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6386 | ixgbe_atr(adapter, skb, tx_ring->queue_index, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6387 | tx_flags); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 6388 | tx_ring->atr_count = 0; |
| 6389 | } |
| 6390 | } |
Eric Dumazet | 60d5113 | 2009-12-08 07:22:03 +0000 | [diff] [blame] | 6391 | txq = netdev_get_tx_queue(netdev, tx_ring->queue_index); |
| 6392 | txq->tx_bytes += skb->len; |
| 6393 | txq->tx_packets++; |
Alexander Duyck | 44df32c | 2009-03-31 21:34:23 +0000 | [diff] [blame] | 6394 | ixgbe_tx_queue(adapter, tx_ring, tx_flags, count, skb->len, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6395 | hdr_len); |
Alexander Duyck | 44df32c | 2009-03-31 21:34:23 +0000 | [diff] [blame] | 6396 | ixgbe_maybe_stop_tx(netdev, tx_ring, DESC_NEEDED); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6397 | |
Alexander Duyck | 44df32c | 2009-03-31 21:34:23 +0000 | [diff] [blame] | 6398 | } else { |
| 6399 | dev_kfree_skb_any(skb); |
| 6400 | tx_ring->tx_buffer_info[first].time_stamp = 0; |
| 6401 | tx_ring->next_to_use = first; |
| 6402 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6403 | |
| 6404 | return NETDEV_TX_OK; |
| 6405 | } |
| 6406 | |
Alexander Duyck | 84418e3 | 2010-08-19 13:40:54 +0000 | [diff] [blame] | 6407 | static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev) |
| 6408 | { |
| 6409 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 6410 | struct ixgbe_ring *tx_ring; |
| 6411 | |
| 6412 | tx_ring = adapter->tx_ring[skb->queue_mapping]; |
| 6413 | return ixgbe_xmit_frame_ring(skb, netdev, adapter, tx_ring); |
| 6414 | } |
| 6415 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6416 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6417 | * ixgbe_set_mac - Change the Ethernet Address of the NIC |
| 6418 | * @netdev: network interface device structure |
| 6419 | * @p: pointer to an address structure |
| 6420 | * |
| 6421 | * Returns 0 on success, negative on failure |
| 6422 | **/ |
| 6423 | static int ixgbe_set_mac(struct net_device *netdev, void *p) |
| 6424 | { |
| 6425 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
Peter P Waskiewicz | b461724 | 2008-09-11 20:04:46 -0700 | [diff] [blame] | 6426 | struct ixgbe_hw *hw = &adapter->hw; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6427 | struct sockaddr *addr = p; |
| 6428 | |
| 6429 | if (!is_valid_ether_addr(addr->sa_data)) |
| 6430 | return -EADDRNOTAVAIL; |
| 6431 | |
| 6432 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
Peter P Waskiewicz | b461724 | 2008-09-11 20:04:46 -0700 | [diff] [blame] | 6433 | memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6434 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 6435 | hw->mac.ops.set_rar(hw, 0, hw->mac.addr, adapter->num_vfs, |
| 6436 | IXGBE_RAH_AV); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6437 | |
| 6438 | return 0; |
| 6439 | } |
| 6440 | |
Ben Hutchings | 6b73e10 | 2009-04-29 08:08:58 +0000 | [diff] [blame] | 6441 | static int |
| 6442 | ixgbe_mdio_read(struct net_device *netdev, int prtad, int devad, u16 addr) |
| 6443 | { |
| 6444 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 6445 | struct ixgbe_hw *hw = &adapter->hw; |
| 6446 | u16 value; |
| 6447 | int rc; |
| 6448 | |
| 6449 | if (prtad != hw->phy.mdio.prtad) |
| 6450 | return -EINVAL; |
| 6451 | rc = hw->phy.ops.read_reg(hw, addr, devad, &value); |
| 6452 | if (!rc) |
| 6453 | rc = value; |
| 6454 | return rc; |
| 6455 | } |
| 6456 | |
| 6457 | static int ixgbe_mdio_write(struct net_device *netdev, int prtad, int devad, |
| 6458 | u16 addr, u16 value) |
| 6459 | { |
| 6460 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 6461 | struct ixgbe_hw *hw = &adapter->hw; |
| 6462 | |
| 6463 | if (prtad != hw->phy.mdio.prtad) |
| 6464 | return -EINVAL; |
| 6465 | return hw->phy.ops.write_reg(hw, addr, devad, value); |
| 6466 | } |
| 6467 | |
| 6468 | static int ixgbe_ioctl(struct net_device *netdev, struct ifreq *req, int cmd) |
| 6469 | { |
| 6470 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 6471 | |
| 6472 | return mdio_mii_ioctl(&adapter->hw.phy.mdio, if_mii(req), cmd); |
| 6473 | } |
| 6474 | |
PJ Waskiewicz | 0365e6e | 2009-05-17 12:32:25 +0000 | [diff] [blame] | 6475 | /** |
| 6476 | * ixgbe_add_sanmac_netdev - Add the SAN MAC address to the corresponding |
Jiri Pirko | 31278e7 | 2009-06-17 01:12:19 +0000 | [diff] [blame] | 6477 | * netdev->dev_addrs |
PJ Waskiewicz | 0365e6e | 2009-05-17 12:32:25 +0000 | [diff] [blame] | 6478 | * @netdev: network interface device structure |
| 6479 | * |
| 6480 | * Returns non-zero on failure |
| 6481 | **/ |
| 6482 | static int ixgbe_add_sanmac_netdev(struct net_device *dev) |
| 6483 | { |
| 6484 | int err = 0; |
| 6485 | struct ixgbe_adapter *adapter = netdev_priv(dev); |
| 6486 | struct ixgbe_mac_info *mac = &adapter->hw.mac; |
| 6487 | |
| 6488 | if (is_valid_ether_addr(mac->san_addr)) { |
| 6489 | rtnl_lock(); |
| 6490 | err = dev_addr_add(dev, mac->san_addr, NETDEV_HW_ADDR_T_SAN); |
| 6491 | rtnl_unlock(); |
| 6492 | } |
| 6493 | return err; |
| 6494 | } |
| 6495 | |
| 6496 | /** |
| 6497 | * ixgbe_del_sanmac_netdev - Removes the SAN MAC address to the corresponding |
Jiri Pirko | 31278e7 | 2009-06-17 01:12:19 +0000 | [diff] [blame] | 6498 | * netdev->dev_addrs |
PJ Waskiewicz | 0365e6e | 2009-05-17 12:32:25 +0000 | [diff] [blame] | 6499 | * @netdev: network interface device structure |
| 6500 | * |
| 6501 | * Returns non-zero on failure |
| 6502 | **/ |
| 6503 | static int ixgbe_del_sanmac_netdev(struct net_device *dev) |
| 6504 | { |
| 6505 | int err = 0; |
| 6506 | struct ixgbe_adapter *adapter = netdev_priv(dev); |
| 6507 | struct ixgbe_mac_info *mac = &adapter->hw.mac; |
| 6508 | |
| 6509 | if (is_valid_ether_addr(mac->san_addr)) { |
| 6510 | rtnl_lock(); |
| 6511 | err = dev_addr_del(dev, mac->san_addr, NETDEV_HW_ADDR_T_SAN); |
| 6512 | rtnl_unlock(); |
| 6513 | } |
| 6514 | return err; |
| 6515 | } |
| 6516 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6517 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 6518 | /* |
| 6519 | * Polling 'interrupt' - used by things like netconsole to send skbs |
| 6520 | * without having to re-enable interrupts. It's not called while |
| 6521 | * the interrupt routine is executing. |
| 6522 | */ |
| 6523 | static void ixgbe_netpoll(struct net_device *netdev) |
| 6524 | { |
| 6525 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
Peter P Waskiewicz Jr | 8f9a716 | 2009-07-30 12:25:09 +0000 | [diff] [blame] | 6526 | int i; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6527 | |
Alexander Duyck | 1a647bd | 2010-01-13 01:49:13 +0000 | [diff] [blame] | 6528 | /* if interface is down do nothing */ |
| 6529 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
| 6530 | return; |
| 6531 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6532 | adapter->flags |= IXGBE_FLAG_IN_NETPOLL; |
Peter P Waskiewicz Jr | 8f9a716 | 2009-07-30 12:25:09 +0000 | [diff] [blame] | 6533 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
| 6534 | int num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
| 6535 | for (i = 0; i < num_q_vectors; i++) { |
| 6536 | struct ixgbe_q_vector *q_vector = adapter->q_vector[i]; |
| 6537 | ixgbe_msix_clean_many(0, q_vector); |
| 6538 | } |
| 6539 | } else { |
| 6540 | ixgbe_intr(adapter->pdev->irq, netdev); |
| 6541 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6542 | adapter->flags &= ~IXGBE_FLAG_IN_NETPOLL; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6543 | } |
| 6544 | #endif |
| 6545 | |
Eric Dumazet | de1036b | 2010-10-20 23:00:04 +0000 | [diff] [blame^] | 6546 | static struct rtnl_link_stats64 *ixgbe_get_stats64(struct net_device *netdev, |
| 6547 | struct rtnl_link_stats64 *stats) |
| 6548 | { |
| 6549 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 6550 | int i; |
| 6551 | |
| 6552 | /* accurate rx/tx bytes/packets stats */ |
| 6553 | dev_txq_stats_fold(netdev, stats); |
| 6554 | for (i = 0; i < adapter->num_rx_queues; i++) { |
| 6555 | struct ixgbe_ring *ring = adapter->rx_ring[i]; |
| 6556 | u64 bytes, packets; |
| 6557 | unsigned int start; |
| 6558 | |
| 6559 | do { |
| 6560 | start = u64_stats_fetch_begin_bh(&ring->syncp); |
| 6561 | packets = ring->stats.packets; |
| 6562 | bytes = ring->stats.bytes; |
| 6563 | } while (u64_stats_fetch_retry_bh(&ring->syncp, start)); |
| 6564 | stats->rx_packets += packets; |
| 6565 | stats->rx_bytes += bytes; |
| 6566 | } |
| 6567 | |
| 6568 | /* following stats updated by ixgbe_watchdog_task() */ |
| 6569 | stats->multicast = netdev->stats.multicast; |
| 6570 | stats->rx_errors = netdev->stats.rx_errors; |
| 6571 | stats->rx_length_errors = netdev->stats.rx_length_errors; |
| 6572 | stats->rx_crc_errors = netdev->stats.rx_crc_errors; |
| 6573 | stats->rx_missed_errors = netdev->stats.rx_missed_errors; |
| 6574 | return stats; |
| 6575 | } |
| 6576 | |
| 6577 | |
Stephen Hemminger | 0edc352 | 2008-11-19 22:24:29 -0800 | [diff] [blame] | 6578 | static const struct net_device_ops ixgbe_netdev_ops = { |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6579 | .ndo_open = ixgbe_open, |
Stephen Hemminger | 0edc352 | 2008-11-19 22:24:29 -0800 | [diff] [blame] | 6580 | .ndo_stop = ixgbe_close, |
Stephen Hemminger | 0082982 | 2008-11-20 20:14:53 -0800 | [diff] [blame] | 6581 | .ndo_start_xmit = ixgbe_xmit_frame, |
Stephen Hemminger | 09a3b1f | 2009-03-21 13:40:01 -0700 | [diff] [blame] | 6582 | .ndo_select_queue = ixgbe_select_queue, |
Chris Leech | e90d400 | 2009-03-10 16:00:24 +0000 | [diff] [blame] | 6583 | .ndo_set_rx_mode = ixgbe_set_rx_mode, |
Stephen Hemminger | 0edc352 | 2008-11-19 22:24:29 -0800 | [diff] [blame] | 6584 | .ndo_set_multicast_list = ixgbe_set_rx_mode, |
| 6585 | .ndo_validate_addr = eth_validate_addr, |
| 6586 | .ndo_set_mac_address = ixgbe_set_mac, |
| 6587 | .ndo_change_mtu = ixgbe_change_mtu, |
| 6588 | .ndo_tx_timeout = ixgbe_tx_timeout, |
Stephen Hemminger | 0edc352 | 2008-11-19 22:24:29 -0800 | [diff] [blame] | 6589 | .ndo_vlan_rx_add_vid = ixgbe_vlan_rx_add_vid, |
| 6590 | .ndo_vlan_rx_kill_vid = ixgbe_vlan_rx_kill_vid, |
Ben Hutchings | 6b73e10 | 2009-04-29 08:08:58 +0000 | [diff] [blame] | 6591 | .ndo_do_ioctl = ixgbe_ioctl, |
Greg Rose | 7f01648 | 2010-05-04 22:12:06 +0000 | [diff] [blame] | 6592 | .ndo_set_vf_mac = ixgbe_ndo_set_vf_mac, |
| 6593 | .ndo_set_vf_vlan = ixgbe_ndo_set_vf_vlan, |
| 6594 | .ndo_set_vf_tx_rate = ixgbe_ndo_set_vf_bw, |
| 6595 | .ndo_get_vf_config = ixgbe_ndo_get_vf_config, |
Eric Dumazet | de1036b | 2010-10-20 23:00:04 +0000 | [diff] [blame^] | 6596 | .ndo_get_stats64 = ixgbe_get_stats64, |
Stephen Hemminger | 0edc352 | 2008-11-19 22:24:29 -0800 | [diff] [blame] | 6597 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 6598 | .ndo_poll_controller = ixgbe_netpoll, |
| 6599 | #endif |
Yi Zou | 332d4a7 | 2009-05-13 13:11:53 +0000 | [diff] [blame] | 6600 | #ifdef IXGBE_FCOE |
| 6601 | .ndo_fcoe_ddp_setup = ixgbe_fcoe_ddp_get, |
| 6602 | .ndo_fcoe_ddp_done = ixgbe_fcoe_ddp_put, |
Yi Zou | 8450ff8 | 2009-08-31 12:32:14 +0000 | [diff] [blame] | 6603 | .ndo_fcoe_enable = ixgbe_fcoe_enable, |
| 6604 | .ndo_fcoe_disable = ixgbe_fcoe_disable, |
Yi Zou | 61a1fa1 | 2009-10-28 18:24:56 +0000 | [diff] [blame] | 6605 | .ndo_fcoe_get_wwn = ixgbe_fcoe_get_wwn, |
Yi Zou | 332d4a7 | 2009-05-13 13:11:53 +0000 | [diff] [blame] | 6606 | #endif /* IXGBE_FCOE */ |
Stephen Hemminger | 0edc352 | 2008-11-19 22:24:29 -0800 | [diff] [blame] | 6607 | }; |
| 6608 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 6609 | static void __devinit ixgbe_probe_vf(struct ixgbe_adapter *adapter, |
| 6610 | const struct ixgbe_info *ii) |
| 6611 | { |
| 6612 | #ifdef CONFIG_PCI_IOV |
| 6613 | struct ixgbe_hw *hw = &adapter->hw; |
| 6614 | int err; |
| 6615 | |
| 6616 | if (hw->mac.type != ixgbe_mac_82599EB || !max_vfs) |
| 6617 | return; |
| 6618 | |
| 6619 | /* The 82599 supports up to 64 VFs per physical function |
| 6620 | * but this implementation limits allocation to 63 so that |
| 6621 | * basic networking resources are still available to the |
| 6622 | * physical function |
| 6623 | */ |
| 6624 | adapter->num_vfs = (max_vfs > 63) ? 63 : max_vfs; |
| 6625 | adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED; |
| 6626 | err = pci_enable_sriov(adapter->pdev, adapter->num_vfs); |
| 6627 | if (err) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 6628 | e_err(probe, "Failed to enable PCI sriov: %d\n", err); |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 6629 | goto err_novfs; |
| 6630 | } |
| 6631 | /* If call to enable VFs succeeded then allocate memory |
| 6632 | * for per VF control structures. |
| 6633 | */ |
| 6634 | adapter->vfinfo = |
| 6635 | kcalloc(adapter->num_vfs, |
| 6636 | sizeof(struct vf_data_storage), GFP_KERNEL); |
| 6637 | if (adapter->vfinfo) { |
| 6638 | /* Now that we're sure SR-IOV is enabled |
| 6639 | * and memory allocated set up the mailbox parameters |
| 6640 | */ |
| 6641 | ixgbe_init_mbx_params_pf(hw); |
| 6642 | memcpy(&hw->mbx.ops, ii->mbx_ops, |
| 6643 | sizeof(hw->mbx.ops)); |
| 6644 | |
| 6645 | /* Disable RSC when in SR-IOV mode */ |
| 6646 | adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE | |
| 6647 | IXGBE_FLAG2_RSC_ENABLED); |
| 6648 | return; |
| 6649 | } |
| 6650 | |
| 6651 | /* Oh oh */ |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 6652 | e_err(probe, "Unable to allocate memory for VF Data Storage - " |
| 6653 | "SRIOV disabled\n"); |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 6654 | pci_disable_sriov(adapter->pdev); |
| 6655 | |
| 6656 | err_novfs: |
| 6657 | adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; |
| 6658 | adapter->num_vfs = 0; |
| 6659 | #endif /* CONFIG_PCI_IOV */ |
| 6660 | } |
| 6661 | |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6662 | /** |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6663 | * ixgbe_probe - Device Initialization Routine |
| 6664 | * @pdev: PCI device information struct |
| 6665 | * @ent: entry in ixgbe_pci_tbl |
| 6666 | * |
| 6667 | * Returns 0 on success, negative on failure |
| 6668 | * |
| 6669 | * ixgbe_probe initializes an adapter identified by a pci_dev structure. |
| 6670 | * The OS initialization, configuring of the adapter private structure, |
| 6671 | * and a hardware reset occur. |
| 6672 | **/ |
| 6673 | static int __devinit ixgbe_probe(struct pci_dev *pdev, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6674 | const struct pci_device_id *ent) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6675 | { |
| 6676 | struct net_device *netdev; |
| 6677 | struct ixgbe_adapter *adapter = NULL; |
| 6678 | struct ixgbe_hw *hw; |
| 6679 | const struct ixgbe_info *ii = ixgbe_info_tbl[ent->driver_data]; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6680 | static int cards_found; |
| 6681 | int i, err, pci_using_dac; |
John Fastabend | c85a261 | 2010-02-25 23:15:21 +0000 | [diff] [blame] | 6682 | unsigned int indices = num_possible_cpus(); |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6683 | #ifdef IXGBE_FCOE |
| 6684 | u16 device_caps; |
| 6685 | #endif |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6686 | u32 part_num, eec; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6687 | |
Andy Gospodarek | bded64a | 2010-07-21 06:40:31 +0000 | [diff] [blame] | 6688 | /* Catch broken hardware that put the wrong VF device ID in |
| 6689 | * the PCIe SR-IOV capability. |
| 6690 | */ |
| 6691 | if (pdev->is_virtfn) { |
| 6692 | WARN(1, KERN_ERR "%s (%hx:%hx) should not be a VF!\n", |
| 6693 | pci_name(pdev), pdev->vendor, pdev->device); |
| 6694 | return -EINVAL; |
| 6695 | } |
| 6696 | |
gouji-new | 9ce7766 | 2009-05-06 10:44:45 +0000 | [diff] [blame] | 6697 | err = pci_enable_device_mem(pdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6698 | if (err) |
| 6699 | return err; |
| 6700 | |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 6701 | if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) && |
| 6702 | !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6703 | pci_using_dac = 1; |
| 6704 | } else { |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 6705 | err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6706 | if (err) { |
Nick Nunley | 1b50773 | 2010-04-27 13:10:27 +0000 | [diff] [blame] | 6707 | err = dma_set_coherent_mask(&pdev->dev, |
| 6708 | DMA_BIT_MASK(32)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6709 | if (err) { |
Dan Carpenter | b8bc042 | 2010-07-27 00:05:56 +0000 | [diff] [blame] | 6710 | dev_err(&pdev->dev, |
| 6711 | "No usable DMA configuration, aborting\n"); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6712 | goto err_dma; |
| 6713 | } |
| 6714 | } |
| 6715 | pci_using_dac = 0; |
| 6716 | } |
| 6717 | |
gouji-new | 9ce7766 | 2009-05-06 10:44:45 +0000 | [diff] [blame] | 6718 | err = pci_request_selected_regions(pdev, pci_select_bars(pdev, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6719 | IORESOURCE_MEM), ixgbe_driver_name); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6720 | if (err) { |
Dan Carpenter | b8bc042 | 2010-07-27 00:05:56 +0000 | [diff] [blame] | 6721 | dev_err(&pdev->dev, |
| 6722 | "pci_request_selected_regions failed 0x%x\n", err); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6723 | goto err_pci_reg; |
| 6724 | } |
| 6725 | |
Frans Pop | 19d5afd | 2009-10-02 10:04:12 -0700 | [diff] [blame] | 6726 | pci_enable_pcie_error_reporting(pdev); |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 6727 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6728 | pci_set_master(pdev); |
Wendy Xiong | fb3b27b | 2008-04-23 11:09:24 -0700 | [diff] [blame] | 6729 | pci_save_state(pdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6730 | |
John Fastabend | c85a261 | 2010-02-25 23:15:21 +0000 | [diff] [blame] | 6731 | if (ii->mac == ixgbe_mac_82598EB) |
| 6732 | indices = min_t(unsigned int, indices, IXGBE_MAX_RSS_INDICES); |
| 6733 | else |
| 6734 | indices = min_t(unsigned int, indices, IXGBE_MAX_FDIR_INDICES); |
| 6735 | |
| 6736 | indices = max_t(unsigned int, indices, IXGBE_MAX_DCB_INDICES); |
| 6737 | #ifdef IXGBE_FCOE |
| 6738 | indices += min_t(unsigned int, num_possible_cpus(), |
| 6739 | IXGBE_MAX_FCOE_INDICES); |
| 6740 | #endif |
John Fastabend | c85a261 | 2010-02-25 23:15:21 +0000 | [diff] [blame] | 6741 | netdev = alloc_etherdev_mq(sizeof(struct ixgbe_adapter), indices); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6742 | if (!netdev) { |
| 6743 | err = -ENOMEM; |
| 6744 | goto err_alloc_etherdev; |
| 6745 | } |
| 6746 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6747 | SET_NETDEV_DEV(netdev, &pdev->dev); |
| 6748 | |
| 6749 | pci_set_drvdata(pdev, netdev); |
| 6750 | adapter = netdev_priv(netdev); |
| 6751 | |
| 6752 | adapter->netdev = netdev; |
| 6753 | adapter->pdev = pdev; |
| 6754 | hw = &adapter->hw; |
| 6755 | hw->back = adapter; |
| 6756 | adapter->msg_enable = (1 << DEFAULT_DEBUG_LEVEL_SHIFT) - 1; |
| 6757 | |
Jeff Kirsher | 0585798 | 2008-09-11 19:57:00 -0700 | [diff] [blame] | 6758 | hw->hw_addr = ioremap(pci_resource_start(pdev, 0), |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6759 | pci_resource_len(pdev, 0)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6760 | if (!hw->hw_addr) { |
| 6761 | err = -EIO; |
| 6762 | goto err_ioremap; |
| 6763 | } |
| 6764 | |
| 6765 | for (i = 1; i <= 5; i++) { |
| 6766 | if (pci_resource_len(pdev, i) == 0) |
| 6767 | continue; |
| 6768 | } |
| 6769 | |
Stephen Hemminger | 0edc352 | 2008-11-19 22:24:29 -0800 | [diff] [blame] | 6770 | netdev->netdev_ops = &ixgbe_netdev_ops; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6771 | ixgbe_set_ethtool_ops(netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6772 | netdev->watchdog_timeo = 5 * HZ; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6773 | strcpy(netdev->name, pci_name(pdev)); |
| 6774 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6775 | adapter->bd_number = cards_found; |
| 6776 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6777 | /* Setup hw api */ |
| 6778 | memcpy(&hw->mac.ops, ii->mac_ops, sizeof(hw->mac.ops)); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 6779 | hw->mac.type = ii->mac; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6780 | |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6781 | /* EEPROM */ |
| 6782 | memcpy(&hw->eeprom.ops, ii->eeprom_ops, sizeof(hw->eeprom.ops)); |
| 6783 | eec = IXGBE_READ_REG(hw, IXGBE_EEC); |
| 6784 | /* If EEPROM is valid (bit 8 = 1), use default otherwise use bit bang */ |
| 6785 | if (!(eec & (1 << 8))) |
| 6786 | hw->eeprom.ops.read = &ixgbe_read_eeprom_bit_bang_generic; |
| 6787 | |
| 6788 | /* PHY */ |
| 6789 | memcpy(&hw->phy.ops, ii->phy_ops, sizeof(hw->phy.ops)); |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 6790 | hw->phy.sfp_type = ixgbe_sfp_type_unknown; |
Ben Hutchings | 6b73e10 | 2009-04-29 08:08:58 +0000 | [diff] [blame] | 6791 | /* ixgbe_identify_phy_generic will set prtad and mmds properly */ |
| 6792 | hw->phy.mdio.prtad = MDIO_PRTAD_NONE; |
| 6793 | hw->phy.mdio.mmds = 0; |
| 6794 | hw->phy.mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; |
| 6795 | hw->phy.mdio.dev = netdev; |
| 6796 | hw->phy.mdio.mdio_read = ixgbe_mdio_read; |
| 6797 | hw->phy.mdio.mdio_write = ixgbe_mdio_write; |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 6798 | |
| 6799 | /* set up this timer and work struct before calling get_invariants |
| 6800 | * which might start the timer |
| 6801 | */ |
| 6802 | init_timer(&adapter->sfp_timer); |
Joe Perches | c061b18 | 2010-08-23 18:20:03 +0000 | [diff] [blame] | 6803 | adapter->sfp_timer.function = ixgbe_sfp_timer; |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 6804 | adapter->sfp_timer.data = (unsigned long) adapter; |
| 6805 | |
| 6806 | INIT_WORK(&adapter->sfp_task, ixgbe_sfp_task); |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6807 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 6808 | /* multispeed fiber has its own tasklet, called from GPI SDP1 context */ |
| 6809 | INIT_WORK(&adapter->multispeed_fiber_task, ixgbe_multispeed_fiber_task); |
| 6810 | |
| 6811 | /* a new SFP+ module arrival, called from GPI SDP2 context */ |
| 6812 | INIT_WORK(&adapter->sfp_config_module_task, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6813 | ixgbe_sfp_config_module_task); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 6814 | |
Don Skidmore | 8ca783a | 2009-05-26 20:40:47 -0700 | [diff] [blame] | 6815 | ii->get_invariants(hw); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6816 | |
| 6817 | /* setup the private structure */ |
| 6818 | err = ixgbe_sw_init(adapter); |
| 6819 | if (err) |
| 6820 | goto err_sw_init; |
| 6821 | |
Don Skidmore | e86bff0 | 2010-02-11 04:14:08 +0000 | [diff] [blame] | 6822 | /* Make it possible the adapter to be woken up via WOL */ |
| 6823 | if (adapter->hw.mac.type == ixgbe_mac_82599EB) |
| 6824 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
| 6825 | |
Don Skidmore | bf069c9 | 2009-05-07 10:39:54 +0000 | [diff] [blame] | 6826 | /* |
| 6827 | * If there is a fan on this device and it has failed log the |
| 6828 | * failure. |
| 6829 | */ |
| 6830 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { |
| 6831 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); |
| 6832 | if (esdp & IXGBE_ESDP_SDP1) |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 6833 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
Don Skidmore | bf069c9 | 2009-05-07 10:39:54 +0000 | [diff] [blame] | 6834 | } |
| 6835 | |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6836 | /* reset_hw fills in the perm_addr as well */ |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 6837 | hw->phy.reset_if_overtemp = true; |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6838 | err = hw->mac.ops.reset_hw(hw); |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 6839 | hw->phy.reset_if_overtemp = false; |
Don Skidmore | 8ca783a | 2009-05-26 20:40:47 -0700 | [diff] [blame] | 6840 | if (err == IXGBE_ERR_SFP_NOT_PRESENT && |
| 6841 | hw->mac.type == ixgbe_mac_82598EB) { |
| 6842 | /* |
| 6843 | * Start a kernel thread to watch for a module to arrive. |
| 6844 | * Only do this for 82598, since 82599 will generate |
| 6845 | * interrupts on module arrival. |
| 6846 | */ |
| 6847 | set_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state); |
| 6848 | mod_timer(&adapter->sfp_timer, |
| 6849 | round_jiffies(jiffies + (2 * HZ))); |
| 6850 | err = 0; |
| 6851 | } else if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 6852 | e_dev_err("failed to initialize because an unsupported SFP+ " |
| 6853 | "module type was detected.\n"); |
| 6854 | e_dev_err("Reload the driver after installing a supported " |
| 6855 | "module.\n"); |
PJ Waskiewicz | 04f165e | 2009-04-09 22:27:57 +0000 | [diff] [blame] | 6856 | goto err_sw_init; |
| 6857 | } else if (err) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 6858 | e_dev_err("HW Init failed: %d\n", err); |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6859 | goto err_sw_init; |
| 6860 | } |
| 6861 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 6862 | ixgbe_probe_vf(adapter, ii); |
| 6863 | |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 6864 | netdev->features = NETIF_F_SG | |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6865 | NETIF_F_IP_CSUM | |
| 6866 | NETIF_F_HW_VLAN_TX | |
| 6867 | NETIF_F_HW_VLAN_RX | |
| 6868 | NETIF_F_HW_VLAN_FILTER; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6869 | |
Jesse Brandeburg | e9990a9 | 2008-08-26 04:27:24 -0700 | [diff] [blame] | 6870 | netdev->features |= NETIF_F_IPV6_CSUM; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6871 | netdev->features |= NETIF_F_TSO; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6872 | netdev->features |= NETIF_F_TSO6; |
Herbert Xu | 78b6f4c | 2009-01-18 21:49:45 -0800 | [diff] [blame] | 6873 | netdev->features |= NETIF_F_GRO; |
Jeff Kirsher | ad31c40 | 2008-06-05 04:05:30 -0700 | [diff] [blame] | 6874 | |
Jesse Brandeburg | 45a5ead | 2009-04-27 22:36:35 +0000 | [diff] [blame] | 6875 | if (adapter->hw.mac.type == ixgbe_mac_82599EB) |
| 6876 | netdev->features |= NETIF_F_SCTP_CSUM; |
| 6877 | |
Jeff Kirsher | ad31c40 | 2008-06-05 04:05:30 -0700 | [diff] [blame] | 6878 | netdev->vlan_features |= NETIF_F_TSO; |
| 6879 | netdev->vlan_features |= NETIF_F_TSO6; |
Jesse Brandeburg | 22f32b7a5 | 2008-08-26 04:27:18 -0700 | [diff] [blame] | 6880 | netdev->vlan_features |= NETIF_F_IP_CSUM; |
Alexander Duyck | cd1da50 | 2009-08-25 04:47:50 +0000 | [diff] [blame] | 6881 | netdev->vlan_features |= NETIF_F_IPV6_CSUM; |
Jeff Kirsher | ad31c40 | 2008-06-05 04:05:30 -0700 | [diff] [blame] | 6882 | netdev->vlan_features |= NETIF_F_SG; |
| 6883 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 6884 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
| 6885 | adapter->flags &= ~(IXGBE_FLAG_RSS_ENABLED | |
| 6886 | IXGBE_FLAG_DCB_ENABLED); |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 6887 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) |
| 6888 | adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED; |
| 6889 | |
Jeff Kirsher | 7a6b6f5 | 2008-11-25 01:02:08 -0800 | [diff] [blame] | 6890 | #ifdef CONFIG_IXGBE_DCB |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 6891 | netdev->dcbnl_ops = &dcbnl_ops; |
| 6892 | #endif |
| 6893 | |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6894 | #ifdef IXGBE_FCOE |
Yi Zou | 0d55158 | 2009-07-22 14:07:12 +0000 | [diff] [blame] | 6895 | if (adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) { |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6896 | if (hw->mac.ops.get_device_caps) { |
| 6897 | hw->mac.ops.get_device_caps(hw, &device_caps); |
Yi Zou | 0d55158 | 2009-07-22 14:07:12 +0000 | [diff] [blame] | 6898 | if (device_caps & IXGBE_DEVICE_CAPS_FCOE_OFFLOADS) |
| 6899 | adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE; |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6900 | } |
| 6901 | } |
Yi Zou | 5e09d7f | 2010-07-19 13:59:52 +0000 | [diff] [blame] | 6902 | if (adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) { |
| 6903 | netdev->vlan_features |= NETIF_F_FCOE_CRC; |
| 6904 | netdev->vlan_features |= NETIF_F_FSO; |
| 6905 | netdev->vlan_features |= NETIF_F_FCOE_MTU; |
| 6906 | } |
Yi Zou | eacd73f | 2009-05-13 13:11:06 +0000 | [diff] [blame] | 6907 | #endif /* IXGBE_FCOE */ |
Yi Zou | 7b872a5 | 2010-09-22 17:57:58 +0000 | [diff] [blame] | 6908 | if (pci_using_dac) { |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6909 | netdev->features |= NETIF_F_HIGHDMA; |
Yi Zou | 7b872a5 | 2010-09-22 17:57:58 +0000 | [diff] [blame] | 6910 | netdev->vlan_features |= NETIF_F_HIGHDMA; |
| 6911 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6912 | |
Peter P Waskiewicz Jr | 0c19d6a | 2009-07-30 12:25:28 +0000 | [diff] [blame] | 6913 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) |
Alexander Duyck | f8212f9 | 2009-04-27 22:42:37 +0000 | [diff] [blame] | 6914 | netdev->features |= NETIF_F_LRO; |
| 6915 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6916 | /* make sure the EEPROM is good */ |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6917 | if (hw->eeprom.ops.validate_checksum(hw, NULL) < 0) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 6918 | e_dev_err("The EEPROM Checksum Is Not Valid\n"); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6919 | err = -EIO; |
| 6920 | goto err_eeprom; |
| 6921 | } |
| 6922 | |
| 6923 | memcpy(netdev->dev_addr, hw->mac.perm_addr, netdev->addr_len); |
| 6924 | memcpy(netdev->perm_addr, hw->mac.perm_addr, netdev->addr_len); |
| 6925 | |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6926 | if (ixgbe_validate_mac_addr(netdev->perm_addr)) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 6927 | e_dev_err("invalid MAC address\n"); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6928 | err = -EIO; |
| 6929 | goto err_eeprom; |
| 6930 | } |
| 6931 | |
Peter Waskiewicz | 61fac74 | 2010-04-27 00:38:15 +0000 | [diff] [blame] | 6932 | /* power down the optics */ |
| 6933 | if (hw->phy.multispeed_fiber) |
| 6934 | hw->mac.ops.disable_tx_laser(hw); |
| 6935 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6936 | init_timer(&adapter->watchdog_timer); |
Joe Perches | c061b18 | 2010-08-23 18:20:03 +0000 | [diff] [blame] | 6937 | adapter->watchdog_timer.function = ixgbe_watchdog; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6938 | adapter->watchdog_timer.data = (unsigned long)adapter; |
| 6939 | |
| 6940 | INIT_WORK(&adapter->reset_task, ixgbe_reset_task); |
Jesse Brandeburg | cf8280e | 2008-09-11 19:55:32 -0700 | [diff] [blame] | 6941 | INIT_WORK(&adapter->watchdog_task, ixgbe_watchdog_task); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6942 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 6943 | err = ixgbe_init_interrupt_scheme(adapter); |
| 6944 | if (err) |
| 6945 | goto err_sw_init; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6946 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 6947 | switch (pdev->device) { |
| 6948 | case IXGBE_DEV_ID_82599_KX4: |
Waskiewicz Jr, Peter P | 495dce1 | 2009-04-23 11:15:18 +0000 | [diff] [blame] | 6949 | adapter->wol = (IXGBE_WUFC_MAG | IXGBE_WUFC_EX | |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6950 | IXGBE_WUFC_MC | IXGBE_WUFC_BC); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 6951 | break; |
| 6952 | default: |
| 6953 | adapter->wol = 0; |
| 6954 | break; |
| 6955 | } |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 6956 | device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); |
| 6957 | |
PJ Waskiewicz | 04f165e | 2009-04-09 22:27:57 +0000 | [diff] [blame] | 6958 | /* pick up the PCI bus settings for reporting later */ |
| 6959 | hw->mac.ops.get_bus_info(hw); |
| 6960 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6961 | /* print bus type/speed/width info */ |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 6962 | e_dev_info("(PCI Express:%s:%s) %pM\n", |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 6963 | (hw->bus.speed == ixgbe_bus_speed_5000 ? "5.0Gb/s" : |
| 6964 | hw->bus.speed == ixgbe_bus_speed_2500 ? "2.5Gb/s" : |
| 6965 | "Unknown"), |
| 6966 | (hw->bus.width == ixgbe_bus_width_pcie_x8 ? "Width x8" : |
| 6967 | hw->bus.width == ixgbe_bus_width_pcie_x4 ? "Width x4" : |
| 6968 | hw->bus.width == ixgbe_bus_width_pcie_x1 ? "Width x1" : |
| 6969 | "Unknown"), |
| 6970 | netdev->dev_addr); |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6971 | ixgbe_read_pba_num_generic(hw, &part_num); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 6972 | if (ixgbe_is_sfp(hw) && hw->phy.sfp_type != ixgbe_sfp_type_not_present) |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 6973 | e_dev_info("MAC: %d, PHY: %d, SFP+: %d, " |
| 6974 | "PBA No: %06x-%03x\n", |
| 6975 | hw->mac.type, hw->phy.type, hw->phy.sfp_type, |
| 6976 | (part_num >> 8), (part_num & 0xff)); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 6977 | else |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 6978 | e_dev_info("MAC: %d, PHY: %d, PBA No: %06x-%03x\n", |
| 6979 | hw->mac.type, hw->phy.type, |
| 6980 | (part_num >> 8), (part_num & 0xff)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6981 | |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 6982 | if (hw->bus.width <= ixgbe_bus_width_pcie_x4) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 6983 | e_dev_warn("PCI-Express bandwidth available for this card is " |
| 6984 | "not sufficient for optimal performance.\n"); |
| 6985 | e_dev_warn("For optimal performance a x8 PCI-Express slot " |
| 6986 | "is required.\n"); |
Auke Kok | 0c254d8 | 2008-02-11 09:25:56 -0800 | [diff] [blame] | 6987 | } |
| 6988 | |
Peter P Waskiewicz Jr | 34b0368 | 2009-02-05 23:54:42 -0800 | [diff] [blame] | 6989 | /* save off EEPROM version number */ |
| 6990 | hw->eeprom.ops.read(hw, 0x29, &adapter->eeprom_version); |
| 6991 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 6992 | /* reset the hardware with the new settings */ |
Peter P Waskiewicz Jr | 794caeb | 2009-06-04 16:02:24 +0000 | [diff] [blame] | 6993 | err = hw->mac.ops.start_hw(hw); |
Jesse Brandeburg | c44ade9 | 2008-09-11 19:59:59 -0700 | [diff] [blame] | 6994 | |
Peter P Waskiewicz Jr | 794caeb | 2009-06-04 16:02:24 +0000 | [diff] [blame] | 6995 | if (err == IXGBE_ERR_EEPROM_VERSION) { |
| 6996 | /* We are running on a pre-production device, log a warning */ |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 6997 | e_dev_warn("This device is a pre-production adapter/LOM. " |
| 6998 | "Please be aware there may be issues associated " |
| 6999 | "with your hardware. If you are experiencing " |
| 7000 | "problems please contact your Intel or hardware " |
| 7001 | "representative who provided you with this " |
| 7002 | "hardware.\n"); |
Peter P Waskiewicz Jr | 794caeb | 2009-06-04 16:02:24 +0000 | [diff] [blame] | 7003 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7004 | strcpy(netdev->name, "eth%d"); |
| 7005 | err = register_netdev(netdev); |
| 7006 | if (err) |
| 7007 | goto err_register; |
| 7008 | |
Jesse Brandeburg | 5438646 | 2009-04-17 20:44:27 +0000 | [diff] [blame] | 7009 | /* carrier off reporting is important to ethtool even BEFORE open */ |
| 7010 | netif_carrier_off(netdev); |
| 7011 | |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 7012 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || |
| 7013 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) |
| 7014 | INIT_WORK(&adapter->fdir_reinit_task, ixgbe_fdir_reinit_task); |
| 7015 | |
Mallikarjuna R Chilakala | 119fc60 | 2010-05-20 23:07:06 -0700 | [diff] [blame] | 7016 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 7017 | INIT_WORK(&adapter->check_overtemp_task, |
| 7018 | ixgbe_check_overtemp_task); |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 7019 | #ifdef CONFIG_IXGBE_DCA |
Denis V. Lunev | 652f093 | 2008-03-27 14:39:17 +0300 | [diff] [blame] | 7020 | if (dca_add_requester(&pdev->dev) == 0) { |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7021 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7022 | ixgbe_setup_dca(adapter); |
| 7023 | } |
| 7024 | #endif |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 7025 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 7026 | e_info(probe, "IOV is enabled with %d VFs\n", adapter->num_vfs); |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 7027 | for (i = 0; i < adapter->num_vfs; i++) |
| 7028 | ixgbe_vf_configuration(pdev, (i | 0x10000000)); |
| 7029 | } |
| 7030 | |
PJ Waskiewicz | 0365e6e | 2009-05-17 12:32:25 +0000 | [diff] [blame] | 7031 | /* add san mac addr to netdev */ |
| 7032 | ixgbe_add_sanmac_netdev(netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7033 | |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7034 | e_dev_info("Intel(R) 10 Gigabit Network Connection\n"); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7035 | cards_found++; |
| 7036 | return 0; |
| 7037 | |
| 7038 | err_register: |
Ayyappan Veeraiyan | 5eba369 | 2008-02-01 15:59:04 -0800 | [diff] [blame] | 7039 | ixgbe_release_hw_control(adapter); |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 7040 | ixgbe_clear_interrupt_scheme(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7041 | err_sw_init: |
| 7042 | err_eeprom: |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 7043 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
| 7044 | ixgbe_disable_sriov(adapter); |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 7045 | clear_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state); |
| 7046 | del_timer_sync(&adapter->sfp_timer); |
| 7047 | cancel_work_sync(&adapter->sfp_task); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 7048 | cancel_work_sync(&adapter->multispeed_fiber_task); |
| 7049 | cancel_work_sync(&adapter->sfp_config_module_task); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7050 | iounmap(hw->hw_addr); |
| 7051 | err_ioremap: |
| 7052 | free_netdev(netdev); |
| 7053 | err_alloc_etherdev: |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 7054 | pci_release_selected_regions(pdev, |
| 7055 | pci_select_bars(pdev, IORESOURCE_MEM)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7056 | err_pci_reg: |
| 7057 | err_dma: |
| 7058 | pci_disable_device(pdev); |
| 7059 | return err; |
| 7060 | } |
| 7061 | |
| 7062 | /** |
| 7063 | * ixgbe_remove - Device Removal Routine |
| 7064 | * @pdev: PCI device information struct |
| 7065 | * |
| 7066 | * ixgbe_remove is called by the PCI subsystem to alert the driver |
| 7067 | * that it should release a PCI device. The could be caused by a |
| 7068 | * Hot-Plug event, or because the driver is going to be removed from |
| 7069 | * memory. |
| 7070 | **/ |
| 7071 | static void __devexit ixgbe_remove(struct pci_dev *pdev) |
| 7072 | { |
| 7073 | struct net_device *netdev = pci_get_drvdata(pdev); |
| 7074 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| 7075 | |
| 7076 | set_bit(__IXGBE_DOWN, &adapter->state); |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 7077 | /* clear the module not found bit to make sure the worker won't |
| 7078 | * reschedule |
| 7079 | */ |
| 7080 | clear_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7081 | del_timer_sync(&adapter->watchdog_timer); |
| 7082 | |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 7083 | del_timer_sync(&adapter->sfp_timer); |
| 7084 | cancel_work_sync(&adapter->watchdog_task); |
| 7085 | cancel_work_sync(&adapter->sfp_task); |
PJ Waskiewicz | e8e2635 | 2009-02-27 15:45:05 +0000 | [diff] [blame] | 7086 | cancel_work_sync(&adapter->multispeed_fiber_task); |
| 7087 | cancel_work_sync(&adapter->sfp_config_module_task); |
Peter P Waskiewicz Jr | c4cf55e | 2009-06-04 16:01:43 +0000 | [diff] [blame] | 7088 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || |
| 7089 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) |
| 7090 | cancel_work_sync(&adapter->fdir_reinit_task); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7091 | flush_scheduled_work(); |
| 7092 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 7093 | #ifdef CONFIG_IXGBE_DCA |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7094 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { |
| 7095 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; |
| 7096 | dca_remove_requester(&pdev->dev); |
| 7097 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 1); |
| 7098 | } |
| 7099 | |
| 7100 | #endif |
Yi Zou | 332d4a7 | 2009-05-13 13:11:53 +0000 | [diff] [blame] | 7101 | #ifdef IXGBE_FCOE |
| 7102 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) |
| 7103 | ixgbe_cleanup_fcoe(adapter); |
| 7104 | |
| 7105 | #endif /* IXGBE_FCOE */ |
PJ Waskiewicz | 0365e6e | 2009-05-17 12:32:25 +0000 | [diff] [blame] | 7106 | |
| 7107 | /* remove the added san mac */ |
| 7108 | ixgbe_del_sanmac_netdev(netdev); |
| 7109 | |
Donald Skidmore | c4900be | 2008-11-20 21:11:42 -0800 | [diff] [blame] | 7110 | if (netdev->reg_state == NETREG_REGISTERED) |
| 7111 | unregister_netdev(netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7112 | |
Greg Rose | 1cdd1ec | 2010-01-09 02:26:46 +0000 | [diff] [blame] | 7113 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
| 7114 | ixgbe_disable_sriov(adapter); |
| 7115 | |
Alexander Duyck | 7a921c9 | 2009-05-06 10:43:28 +0000 | [diff] [blame] | 7116 | ixgbe_clear_interrupt_scheme(adapter); |
Ayyappan Veeraiyan | 5eba369 | 2008-02-01 15:59:04 -0800 | [diff] [blame] | 7117 | |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 7118 | ixgbe_release_hw_control(adapter); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7119 | |
| 7120 | iounmap(adapter->hw.hw_addr); |
gouji-new | 9ce7766 | 2009-05-06 10:44:45 +0000 | [diff] [blame] | 7121 | pci_release_selected_regions(pdev, pci_select_bars(pdev, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 7122 | IORESOURCE_MEM)); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7123 | |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7124 | e_dev_info("complete\n"); |
Ayyappan Veeraiyan | 021230d | 2008-03-03 15:03:45 -0800 | [diff] [blame] | 7125 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7126 | free_netdev(netdev); |
| 7127 | |
Frans Pop | 19d5afd | 2009-10-02 10:04:12 -0700 | [diff] [blame] | 7128 | pci_disable_pcie_error_reporting(pdev); |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7129 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7130 | pci_disable_device(pdev); |
| 7131 | } |
| 7132 | |
| 7133 | /** |
| 7134 | * ixgbe_io_error_detected - called when PCI error is detected |
| 7135 | * @pdev: Pointer to PCI device |
| 7136 | * @state: The current pci connection state |
| 7137 | * |
| 7138 | * This function is called after a PCI bus error affecting |
| 7139 | * this device has been detected. |
| 7140 | */ |
| 7141 | static pci_ers_result_t ixgbe_io_error_detected(struct pci_dev *pdev, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 7142 | pci_channel_state_t state) |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7143 | { |
| 7144 | struct net_device *netdev = pci_get_drvdata(pdev); |
Wang Chen | 454d7c9 | 2008-11-12 23:37:49 -0800 | [diff] [blame] | 7145 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7146 | |
| 7147 | netif_device_detach(netdev); |
| 7148 | |
Breno Leitao | 3044b8d | 2009-05-06 10:44:26 +0000 | [diff] [blame] | 7149 | if (state == pci_channel_io_perm_failure) |
| 7150 | return PCI_ERS_RESULT_DISCONNECT; |
| 7151 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7152 | if (netif_running(netdev)) |
| 7153 | ixgbe_down(adapter); |
| 7154 | pci_disable_device(pdev); |
| 7155 | |
Peter P Waskiewicz | b461724 | 2008-09-11 20:04:46 -0700 | [diff] [blame] | 7156 | /* Request a slot reset. */ |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7157 | return PCI_ERS_RESULT_NEED_RESET; |
| 7158 | } |
| 7159 | |
| 7160 | /** |
| 7161 | * ixgbe_io_slot_reset - called after the pci bus has been reset. |
| 7162 | * @pdev: Pointer to PCI device |
| 7163 | * |
| 7164 | * Restart the card from scratch, as if from a cold-boot. |
| 7165 | */ |
| 7166 | static pci_ers_result_t ixgbe_io_slot_reset(struct pci_dev *pdev) |
| 7167 | { |
| 7168 | struct net_device *netdev = pci_get_drvdata(pdev); |
Wang Chen | 454d7c9 | 2008-11-12 23:37:49 -0800 | [diff] [blame] | 7169 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7170 | pci_ers_result_t result; |
| 7171 | int err; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7172 | |
gouji-new | 9ce7766 | 2009-05-06 10:44:45 +0000 | [diff] [blame] | 7173 | if (pci_enable_device_mem(pdev)) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 7174 | e_err(probe, "Cannot re-enable PCI device after reset.\n"); |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7175 | result = PCI_ERS_RESULT_DISCONNECT; |
| 7176 | } else { |
| 7177 | pci_set_master(pdev); |
| 7178 | pci_restore_state(pdev); |
Breno Leitao | c0e1f68 | 2009-11-10 08:37:47 +0000 | [diff] [blame] | 7179 | pci_save_state(pdev); |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7180 | |
Don Skidmore | dd4d8ca | 2009-04-29 00:22:31 -0700 | [diff] [blame] | 7181 | pci_wake_from_d3(pdev, false); |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7182 | |
| 7183 | ixgbe_reset(adapter); |
PJ Waskiewicz | 8851253 | 2009-03-13 22:15:10 +0000 | [diff] [blame] | 7184 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7185 | result = PCI_ERS_RESULT_RECOVERED; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7186 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7187 | |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7188 | err = pci_cleanup_aer_uncorrect_error_status(pdev); |
| 7189 | if (err) { |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7190 | e_dev_err("pci_cleanup_aer_uncorrect_error_status " |
| 7191 | "failed 0x%0x\n", err); |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7192 | /* non-fatal, continue */ |
| 7193 | } |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7194 | |
Peter P Waskiewicz Jr | 6fabd71 | 2008-12-10 01:13:08 -0800 | [diff] [blame] | 7195 | return result; |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7196 | } |
| 7197 | |
| 7198 | /** |
| 7199 | * ixgbe_io_resume - called when traffic can start flowing again. |
| 7200 | * @pdev: Pointer to PCI device |
| 7201 | * |
| 7202 | * This callback is called when the error recovery driver tells us that |
| 7203 | * its OK to resume normal operation. |
| 7204 | */ |
| 7205 | static void ixgbe_io_resume(struct pci_dev *pdev) |
| 7206 | { |
| 7207 | struct net_device *netdev = pci_get_drvdata(pdev); |
Wang Chen | 454d7c9 | 2008-11-12 23:37:49 -0800 | [diff] [blame] | 7208 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7209 | |
| 7210 | if (netif_running(netdev)) { |
| 7211 | if (ixgbe_up(adapter)) { |
Emil Tantilov | 396e799 | 2010-07-01 20:05:12 +0000 | [diff] [blame] | 7212 | e_info(probe, "ixgbe_up failed after reset\n"); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7213 | return; |
| 7214 | } |
| 7215 | } |
| 7216 | |
| 7217 | netif_device_attach(netdev); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7218 | } |
| 7219 | |
| 7220 | static struct pci_error_handlers ixgbe_err_handler = { |
| 7221 | .error_detected = ixgbe_io_error_detected, |
| 7222 | .slot_reset = ixgbe_io_slot_reset, |
| 7223 | .resume = ixgbe_io_resume, |
| 7224 | }; |
| 7225 | |
| 7226 | static struct pci_driver ixgbe_driver = { |
| 7227 | .name = ixgbe_driver_name, |
| 7228 | .id_table = ixgbe_pci_tbl, |
| 7229 | .probe = ixgbe_probe, |
| 7230 | .remove = __devexit_p(ixgbe_remove), |
| 7231 | #ifdef CONFIG_PM |
| 7232 | .suspend = ixgbe_suspend, |
| 7233 | .resume = ixgbe_resume, |
| 7234 | #endif |
| 7235 | .shutdown = ixgbe_shutdown, |
| 7236 | .err_handler = &ixgbe_err_handler |
| 7237 | }; |
| 7238 | |
| 7239 | /** |
| 7240 | * ixgbe_init_module - Driver Registration Routine |
| 7241 | * |
| 7242 | * ixgbe_init_module is the first routine called when the driver is |
| 7243 | * loaded. All it does is register with the PCI subsystem. |
| 7244 | **/ |
| 7245 | static int __init ixgbe_init_module(void) |
| 7246 | { |
| 7247 | int ret; |
Joe Perches | c768957 | 2010-09-07 21:35:17 +0000 | [diff] [blame] | 7248 | pr_info("%s - version %s\n", ixgbe_driver_string, ixgbe_driver_version); |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7249 | pr_info("%s\n", ixgbe_copyright); |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7250 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 7251 | #ifdef CONFIG_IXGBE_DCA |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7252 | dca_register_notify(&dca_notifier); |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7253 | #endif |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 7254 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7255 | ret = pci_register_driver(&ixgbe_driver); |
| 7256 | return ret; |
| 7257 | } |
Peter P Waskiewicz | b461724 | 2008-09-11 20:04:46 -0700 | [diff] [blame] | 7258 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7259 | module_init(ixgbe_init_module); |
| 7260 | |
| 7261 | /** |
| 7262 | * ixgbe_exit_module - Driver Exit Cleanup Routine |
| 7263 | * |
| 7264 | * ixgbe_exit_module is called just before the driver is removed |
| 7265 | * from memory. |
| 7266 | **/ |
| 7267 | static void __exit ixgbe_exit_module(void) |
| 7268 | { |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 7269 | #ifdef CONFIG_IXGBE_DCA |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7270 | dca_unregister_notify(&dca_notifier); |
| 7271 | #endif |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7272 | pci_unregister_driver(&ixgbe_driver); |
| 7273 | } |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7274 | |
Jeff Garzik | 5dd2d33 | 2008-10-16 05:09:31 -0400 | [diff] [blame] | 7275 | #ifdef CONFIG_IXGBE_DCA |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7276 | static int ixgbe_notify_dca(struct notifier_block *nb, unsigned long event, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 7277 | void *p) |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7278 | { |
| 7279 | int ret_val; |
| 7280 | |
| 7281 | ret_val = driver_for_each_device(&ixgbe_driver.driver, NULL, &event, |
Joe Perches | e8e9f69 | 2010-09-07 21:34:53 +0000 | [diff] [blame] | 7282 | __ixgbe_notify_dca); |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7283 | |
| 7284 | return ret_val ? NOTIFY_BAD : NOTIFY_DONE; |
| 7285 | } |
Jeb Cramer | bd0362d | 2008-03-03 15:04:02 -0800 | [diff] [blame] | 7286 | |
Alexander Duyck | b453368 | 2009-03-31 21:32:42 +0000 | [diff] [blame] | 7287 | #endif /* CONFIG_IXGBE_DCA */ |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7288 | |
Alexander Duyck | b453368 | 2009-03-31 21:32:42 +0000 | [diff] [blame] | 7289 | /** |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7290 | * ixgbe_get_hw_dev return device |
Alexander Duyck | b453368 | 2009-03-31 21:32:42 +0000 | [diff] [blame] | 7291 | * used by hardware layer to print debugging information |
| 7292 | **/ |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7293 | struct net_device *ixgbe_get_hw_dev(struct ixgbe_hw *hw) |
Alexander Duyck | b453368 | 2009-03-31 21:32:42 +0000 | [diff] [blame] | 7294 | { |
| 7295 | struct ixgbe_adapter *adapter = hw->back; |
Emil Tantilov | 849c454 | 2010-06-03 16:53:41 +0000 | [diff] [blame] | 7296 | return adapter->netdev; |
Alexander Duyck | b453368 | 2009-03-31 21:32:42 +0000 | [diff] [blame] | 7297 | } |
| 7298 | |
Auke Kok | 9a799d7 | 2007-09-15 14:07:45 -0700 | [diff] [blame] | 7299 | module_exit(ixgbe_exit_module); |
| 7300 | |
| 7301 | /* ixgbe_main.c */ |