1 /******************************************************************************* 2 3 Intel 82599 Virtual Function driver 4 Copyright(c) 1999 - 2012 Intel Corporation. 5 6 This program is free software; you can redistribute it and/or modify it 7 under the terms and conditions of the GNU General Public License, 8 version 2, as published by the Free Software Foundation. 9 10 This program is distributed in the hope it will be useful, but WITHOUT 11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 more details. 14 15 You should have received a copy of the GNU General Public License along with 16 this program; if not, write to the Free Software Foundation, Inc., 17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 18 19 The full GNU General Public License is included in this distribution in 20 the file called "COPYING". 21 22 Contact Information: 23 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> 24 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 25 26 *******************************************************************************/ 27 28 /* ethtool support for ixgbevf */ 29 30 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 31 32 #include <linux/types.h> 33 #include <linux/module.h> 34 #include <linux/slab.h> 35 #include <linux/pci.h> 36 #include <linux/netdevice.h> 37 #include <linux/ethtool.h> 38 #include <linux/vmalloc.h> 39 #include <linux/if_vlan.h> 40 #include <linux/uaccess.h> 41 42 #include "ixgbevf.h" 43 44 #define IXGBE_ALL_RAR_ENTRIES 16 45 46 struct ixgbe_stats { 47 char stat_string[ETH_GSTRING_LEN]; 48 int sizeof_stat; 49 int stat_offset; 50 int base_stat_offset; 51 int saved_reset_offset; 52 }; 53 54 #define IXGBEVF_STAT(m, b, r) sizeof(((struct ixgbevf_adapter *)0)->m), \ 55 offsetof(struct ixgbevf_adapter, m), \ 56 offsetof(struct ixgbevf_adapter, b), \ 57 offsetof(struct ixgbevf_adapter, r) 58 59 static const struct ixgbe_stats ixgbe_gstrings_stats[] = { 60 {"rx_packets", IXGBEVF_STAT(stats.vfgprc, stats.base_vfgprc, 61 stats.saved_reset_vfgprc)}, 62 {"tx_packets", IXGBEVF_STAT(stats.vfgptc, stats.base_vfgptc, 63 stats.saved_reset_vfgptc)}, 64 {"rx_bytes", IXGBEVF_STAT(stats.vfgorc, stats.base_vfgorc, 65 stats.saved_reset_vfgorc)}, 66 {"tx_bytes", IXGBEVF_STAT(stats.vfgotc, stats.base_vfgotc, 67 stats.saved_reset_vfgotc)}, 68 {"tx_busy", IXGBEVF_STAT(tx_busy, zero_base, zero_base)}, 69 {"multicast", IXGBEVF_STAT(stats.vfmprc, stats.base_vfmprc, 70 stats.saved_reset_vfmprc)}, 71 {"rx_csum_offload_good", IXGBEVF_STAT(hw_csum_rx_good, zero_base, 72 zero_base)}, 73 {"rx_csum_offload_errors", IXGBEVF_STAT(hw_csum_rx_error, zero_base, 74 zero_base)}, 75 {"tx_csum_offload_ctxt", IXGBEVF_STAT(hw_csum_tx_good, zero_base, 76 zero_base)}, 77 }; 78 79 #define IXGBE_QUEUE_STATS_LEN 0 80 #define IXGBE_GLOBAL_STATS_LEN ARRAY_SIZE(ixgbe_gstrings_stats) 81 82 #define IXGBEVF_STATS_LEN (IXGBE_GLOBAL_STATS_LEN + IXGBE_QUEUE_STATS_LEN) 83 static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = { 84 "Register test (offline)", 85 "Link test (on/offline)" 86 }; 87 #define IXGBE_TEST_LEN (sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN) 88 89 static int ixgbevf_get_settings(struct net_device *netdev, 90 struct ethtool_cmd *ecmd) 91 { 92 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 93 struct ixgbe_hw *hw = &adapter->hw; 94 u32 link_speed = 0; 95 bool link_up; 96 97 ecmd->supported = SUPPORTED_10000baseT_Full; 98 ecmd->autoneg = AUTONEG_DISABLE; 99 ecmd->transceiver = XCVR_DUMMY1; 100 ecmd->port = -1; 101 102 hw->mac.get_link_status = 1; 103 hw->mac.ops.check_link(hw, &link_speed, &link_up, false); 104 105 if (link_up) { 106 __u32 speed = SPEED_10000; 107 switch (link_speed) { 108 case IXGBE_LINK_SPEED_10GB_FULL: 109 speed = SPEED_10000; 110 break; 111 case IXGBE_LINK_SPEED_1GB_FULL: 112 speed = SPEED_1000; 113 break; 114 case IXGBE_LINK_SPEED_100_FULL: 115 speed = SPEED_100; 116 break; 117 } 118 119 ethtool_cmd_speed_set(ecmd, speed); 120 ecmd->duplex = DUPLEX_FULL; 121 } else { 122 ethtool_cmd_speed_set(ecmd, -1); 123 ecmd->duplex = -1; 124 } 125 126 return 0; 127 } 128 129 static u32 ixgbevf_get_msglevel(struct net_device *netdev) 130 { 131 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 132 return adapter->msg_enable; 133 } 134 135 static void ixgbevf_set_msglevel(struct net_device *netdev, u32 data) 136 { 137 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 138 adapter->msg_enable = data; 139 } 140 141 #define IXGBE_GET_STAT(_A_, _R_) (_A_->stats._R_) 142 143 static char *ixgbevf_reg_names[] = { 144 "IXGBE_VFCTRL", 145 "IXGBE_VFSTATUS", 146 "IXGBE_VFLINKS", 147 "IXGBE_VFRXMEMWRAP", 148 "IXGBE_VFFRTIMER", 149 "IXGBE_VTEICR", 150 "IXGBE_VTEICS", 151 "IXGBE_VTEIMS", 152 "IXGBE_VTEIMC", 153 "IXGBE_VTEIAC", 154 "IXGBE_VTEIAM", 155 "IXGBE_VTEITR", 156 "IXGBE_VTIVAR", 157 "IXGBE_VTIVAR_MISC", 158 "IXGBE_VFRDBAL0", 159 "IXGBE_VFRDBAL1", 160 "IXGBE_VFRDBAH0", 161 "IXGBE_VFRDBAH1", 162 "IXGBE_VFRDLEN0", 163 "IXGBE_VFRDLEN1", 164 "IXGBE_VFRDH0", 165 "IXGBE_VFRDH1", 166 "IXGBE_VFRDT0", 167 "IXGBE_VFRDT1", 168 "IXGBE_VFRXDCTL0", 169 "IXGBE_VFRXDCTL1", 170 "IXGBE_VFSRRCTL0", 171 "IXGBE_VFSRRCTL1", 172 "IXGBE_VFPSRTYPE", 173 "IXGBE_VFTDBAL0", 174 "IXGBE_VFTDBAL1", 175 "IXGBE_VFTDBAH0", 176 "IXGBE_VFTDBAH1", 177 "IXGBE_VFTDLEN0", 178 "IXGBE_VFTDLEN1", 179 "IXGBE_VFTDH0", 180 "IXGBE_VFTDH1", 181 "IXGBE_VFTDT0", 182 "IXGBE_VFTDT1", 183 "IXGBE_VFTXDCTL0", 184 "IXGBE_VFTXDCTL1", 185 "IXGBE_VFTDWBAL0", 186 "IXGBE_VFTDWBAL1", 187 "IXGBE_VFTDWBAH0", 188 "IXGBE_VFTDWBAH1" 189 }; 190 191 192 static int ixgbevf_get_regs_len(struct net_device *netdev) 193 { 194 return (ARRAY_SIZE(ixgbevf_reg_names)) * sizeof(u32); 195 } 196 197 static void ixgbevf_get_regs(struct net_device *netdev, 198 struct ethtool_regs *regs, 199 void *p) 200 { 201 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 202 struct ixgbe_hw *hw = &adapter->hw; 203 u32 *regs_buff = p; 204 u32 regs_len = ixgbevf_get_regs_len(netdev); 205 u8 i; 206 207 memset(p, 0, regs_len); 208 209 regs->version = (1 << 24) | hw->revision_id << 16 | hw->device_id; 210 211 /* General Registers */ 212 regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_VFCTRL); 213 regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_VFSTATUS); 214 regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_VFLINKS); 215 regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_VFRXMEMWRAP); 216 regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_VFFRTIMER); 217 218 /* Interrupt */ 219 /* don't read EICR because it can clear interrupt causes, instead 220 * read EICS which is a shadow but doesn't clear EICR */ 221 regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_VTEICS); 222 regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_VTEICS); 223 regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_VTEIMS); 224 regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_VTEIMC); 225 regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_VTEIAC); 226 regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_VTEIAM); 227 regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_VTEITR(0)); 228 regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_VTIVAR(0)); 229 regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC); 230 231 /* Receive DMA */ 232 for (i = 0; i < 2; i++) 233 regs_buff[14 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAL(i)); 234 for (i = 0; i < 2; i++) 235 regs_buff[16 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAH(i)); 236 for (i = 0; i < 2; i++) 237 regs_buff[18 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDLEN(i)); 238 for (i = 0; i < 2; i++) 239 regs_buff[20 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDH(i)); 240 for (i = 0; i < 2; i++) 241 regs_buff[22 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDT(i)); 242 for (i = 0; i < 2; i++) 243 regs_buff[24 + i] = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i)); 244 for (i = 0; i < 2; i++) 245 regs_buff[26 + i] = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i)); 246 247 /* Receive */ 248 regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_VFPSRTYPE); 249 250 /* Transmit */ 251 for (i = 0; i < 2; i++) 252 regs_buff[29 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAL(i)); 253 for (i = 0; i < 2; i++) 254 regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAH(i)); 255 for (i = 0; i < 2; i++) 256 regs_buff[33 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDLEN(i)); 257 for (i = 0; i < 2; i++) 258 regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDH(i)); 259 for (i = 0; i < 2; i++) 260 regs_buff[37 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDT(i)); 261 for (i = 0; i < 2; i++) 262 regs_buff[39 + i] = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i)); 263 for (i = 0; i < 2; i++) 264 regs_buff[41 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAL(i)); 265 for (i = 0; i < 2; i++) 266 regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAH(i)); 267 268 for (i = 0; i < ARRAY_SIZE(ixgbevf_reg_names); i++) 269 hw_dbg(hw, "%s\t%8.8x\n", ixgbevf_reg_names[i], regs_buff[i]); 270 } 271 272 static void ixgbevf_get_drvinfo(struct net_device *netdev, 273 struct ethtool_drvinfo *drvinfo) 274 { 275 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 276 277 strlcpy(drvinfo->driver, ixgbevf_driver_name, sizeof(drvinfo->driver)); 278 strlcpy(drvinfo->version, ixgbevf_driver_version, 279 sizeof(drvinfo->version)); 280 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), 281 sizeof(drvinfo->bus_info)); 282 } 283 284 static void ixgbevf_get_ringparam(struct net_device *netdev, 285 struct ethtool_ringparam *ring) 286 { 287 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 288 289 ring->rx_max_pending = IXGBEVF_MAX_RXD; 290 ring->tx_max_pending = IXGBEVF_MAX_TXD; 291 ring->rx_pending = adapter->rx_ring_count; 292 ring->tx_pending = adapter->tx_ring_count; 293 } 294 295 static int ixgbevf_set_ringparam(struct net_device *netdev, 296 struct ethtool_ringparam *ring) 297 { 298 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 299 struct ixgbevf_ring *tx_ring = NULL, *rx_ring = NULL; 300 u32 new_rx_count, new_tx_count; 301 int i, err = 0; 302 303 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 304 return -EINVAL; 305 306 new_tx_count = max_t(u32, ring->tx_pending, IXGBEVF_MIN_TXD); 307 new_tx_count = min_t(u32, new_tx_count, IXGBEVF_MAX_TXD); 308 new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE); 309 310 new_rx_count = max_t(u32, ring->rx_pending, IXGBEVF_MIN_RXD); 311 new_rx_count = min_t(u32, new_rx_count, IXGBEVF_MAX_RXD); 312 new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE); 313 314 /* if nothing to do return success */ 315 if ((new_tx_count == adapter->tx_ring_count) && 316 (new_rx_count == adapter->rx_ring_count)) 317 return 0; 318 319 while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state)) 320 usleep_range(1000, 2000); 321 322 if (!netif_running(adapter->netdev)) { 323 for (i = 0; i < adapter->num_tx_queues; i++) 324 adapter->tx_ring[i].count = new_tx_count; 325 for (i = 0; i < adapter->num_rx_queues; i++) 326 adapter->rx_ring[i].count = new_rx_count; 327 adapter->tx_ring_count = new_tx_count; 328 adapter->rx_ring_count = new_rx_count; 329 goto clear_reset; 330 } 331 332 if (new_tx_count != adapter->tx_ring_count) { 333 tx_ring = vmalloc(adapter->num_tx_queues * sizeof(*tx_ring)); 334 if (!tx_ring) { 335 err = -ENOMEM; 336 goto clear_reset; 337 } 338 339 for (i = 0; i < adapter->num_tx_queues; i++) { 340 /* clone ring and setup updated count */ 341 tx_ring[i] = adapter->tx_ring[i]; 342 tx_ring[i].count = new_tx_count; 343 err = ixgbevf_setup_tx_resources(adapter, &tx_ring[i]); 344 if (!err) 345 continue; 346 while (i) { 347 i--; 348 ixgbevf_free_tx_resources(adapter, &tx_ring[i]); 349 } 350 351 vfree(tx_ring); 352 tx_ring = NULL; 353 354 goto clear_reset; 355 } 356 } 357 358 if (new_rx_count != adapter->rx_ring_count) { 359 rx_ring = vmalloc(adapter->num_rx_queues * sizeof(*rx_ring)); 360 if (!rx_ring) { 361 err = -ENOMEM; 362 goto clear_reset; 363 } 364 365 for (i = 0; i < adapter->num_rx_queues; i++) { 366 /* clone ring and setup updated count */ 367 rx_ring[i] = adapter->rx_ring[i]; 368 rx_ring[i].count = new_rx_count; 369 err = ixgbevf_setup_rx_resources(adapter, &rx_ring[i]); 370 if (!err) 371 continue; 372 while (i) { 373 i--; 374 ixgbevf_free_rx_resources(adapter, &rx_ring[i]); 375 } 376 377 vfree(rx_ring); 378 rx_ring = NULL; 379 380 goto clear_reset; 381 } 382 } 383 384 /* bring interface down to prepare for update */ 385 ixgbevf_down(adapter); 386 387 /* Tx */ 388 if (tx_ring) { 389 for (i = 0; i < adapter->num_tx_queues; i++) { 390 ixgbevf_free_tx_resources(adapter, 391 &adapter->tx_ring[i]); 392 adapter->tx_ring[i] = tx_ring[i]; 393 } 394 adapter->tx_ring_count = new_tx_count; 395 396 vfree(tx_ring); 397 tx_ring = NULL; 398 } 399 400 /* Rx */ 401 if (rx_ring) { 402 for (i = 0; i < adapter->num_rx_queues; i++) { 403 ixgbevf_free_rx_resources(adapter, 404 &adapter->rx_ring[i]); 405 adapter->rx_ring[i] = rx_ring[i]; 406 } 407 adapter->rx_ring_count = new_rx_count; 408 409 vfree(rx_ring); 410 rx_ring = NULL; 411 } 412 413 /* restore interface using new values */ 414 ixgbevf_up(adapter); 415 416 clear_reset: 417 /* free Tx resources if Rx error is encountered */ 418 if (tx_ring) { 419 for (i = 0; i < adapter->num_tx_queues; i++) 420 ixgbevf_free_tx_resources(adapter, &tx_ring[i]); 421 vfree(tx_ring); 422 } 423 424 clear_bit(__IXGBEVF_RESETTING, &adapter->state); 425 return err; 426 } 427 428 static int ixgbevf_get_sset_count(struct net_device *dev, int stringset) 429 { 430 switch (stringset) { 431 case ETH_SS_TEST: 432 return IXGBE_TEST_LEN; 433 case ETH_SS_STATS: 434 return IXGBE_GLOBAL_STATS_LEN; 435 default: 436 return -EINVAL; 437 } 438 } 439 440 static void ixgbevf_get_ethtool_stats(struct net_device *netdev, 441 struct ethtool_stats *stats, u64 *data) 442 { 443 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 444 int i; 445 446 ixgbevf_update_stats(adapter); 447 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) { 448 char *p = (char *)adapter + 449 ixgbe_gstrings_stats[i].stat_offset; 450 char *b = (char *)adapter + 451 ixgbe_gstrings_stats[i].base_stat_offset; 452 char *r = (char *)adapter + 453 ixgbe_gstrings_stats[i].saved_reset_offset; 454 data[i] = ((ixgbe_gstrings_stats[i].sizeof_stat == 455 sizeof(u64)) ? *(u64 *)p : *(u32 *)p) - 456 ((ixgbe_gstrings_stats[i].sizeof_stat == 457 sizeof(u64)) ? *(u64 *)b : *(u32 *)b) + 458 ((ixgbe_gstrings_stats[i].sizeof_stat == 459 sizeof(u64)) ? *(u64 *)r : *(u32 *)r); 460 } 461 } 462 463 static void ixgbevf_get_strings(struct net_device *netdev, u32 stringset, 464 u8 *data) 465 { 466 char *p = (char *)data; 467 int i; 468 469 switch (stringset) { 470 case ETH_SS_TEST: 471 memcpy(data, *ixgbe_gstrings_test, 472 IXGBE_TEST_LEN * ETH_GSTRING_LEN); 473 break; 474 case ETH_SS_STATS: 475 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) { 476 memcpy(p, ixgbe_gstrings_stats[i].stat_string, 477 ETH_GSTRING_LEN); 478 p += ETH_GSTRING_LEN; 479 } 480 break; 481 } 482 } 483 484 static int ixgbevf_link_test(struct ixgbevf_adapter *adapter, u64 *data) 485 { 486 struct ixgbe_hw *hw = &adapter->hw; 487 bool link_up; 488 u32 link_speed = 0; 489 *data = 0; 490 491 hw->mac.ops.check_link(hw, &link_speed, &link_up, true); 492 if (!link_up) 493 *data = 1; 494 495 return *data; 496 } 497 498 /* ethtool register test data */ 499 struct ixgbevf_reg_test { 500 u16 reg; 501 u8 array_len; 502 u8 test_type; 503 u32 mask; 504 u32 write; 505 }; 506 507 /* In the hardware, registers are laid out either singly, in arrays 508 * spaced 0x40 bytes apart, or in contiguous tables. We assume 509 * most tests take place on arrays or single registers (handled 510 * as a single-element array) and special-case the tables. 511 * Table tests are always pattern tests. 512 * 513 * We also make provision for some required setup steps by specifying 514 * registers to be written without any read-back testing. 515 */ 516 517 #define PATTERN_TEST 1 518 #define SET_READ_TEST 2 519 #define WRITE_NO_TEST 3 520 #define TABLE32_TEST 4 521 #define TABLE64_TEST_LO 5 522 #define TABLE64_TEST_HI 6 523 524 /* default VF register test */ 525 static const struct ixgbevf_reg_test reg_test_vf[] = { 526 { IXGBE_VFRDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 }, 527 { IXGBE_VFRDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, 528 { IXGBE_VFRDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFFFF }, 529 { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE }, 530 { IXGBE_VFRDT(0), 2, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF }, 531 { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, 0 }, 532 { IXGBE_VFTDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF }, 533 { IXGBE_VFTDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, 534 { IXGBE_VFTDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFF80 }, 535 { 0, 0, 0, 0 } 536 }; 537 538 static const u32 register_test_patterns[] = { 539 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF 540 }; 541 542 #define REG_PATTERN_TEST(R, M, W) \ 543 { \ 544 u32 pat, val, before; \ 545 for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) { \ 546 before = readl(adapter->hw.hw_addr + R); \ 547 writel((register_test_patterns[pat] & W), \ 548 (adapter->hw.hw_addr + R)); \ 549 val = readl(adapter->hw.hw_addr + R); \ 550 if (val != (register_test_patterns[pat] & W & M)) { \ 551 hw_dbg(&adapter->hw, \ 552 "pattern test reg %04X failed: got " \ 553 "0x%08X expected 0x%08X\n", \ 554 R, val, (register_test_patterns[pat] & W & M)); \ 555 *data = R; \ 556 writel(before, adapter->hw.hw_addr + R); \ 557 return 1; \ 558 } \ 559 writel(before, adapter->hw.hw_addr + R); \ 560 } \ 561 } 562 563 #define REG_SET_AND_CHECK(R, M, W) \ 564 { \ 565 u32 val, before; \ 566 before = readl(adapter->hw.hw_addr + R); \ 567 writel((W & M), (adapter->hw.hw_addr + R)); \ 568 val = readl(adapter->hw.hw_addr + R); \ 569 if ((W & M) != (val & M)) { \ 570 pr_err("set/check reg %04X test failed: got 0x%08X expected " \ 571 "0x%08X\n", R, (val & M), (W & M)); \ 572 *data = R; \ 573 writel(before, (adapter->hw.hw_addr + R)); \ 574 return 1; \ 575 } \ 576 writel(before, (adapter->hw.hw_addr + R)); \ 577 } 578 579 static int ixgbevf_reg_test(struct ixgbevf_adapter *adapter, u64 *data) 580 { 581 const struct ixgbevf_reg_test *test; 582 u32 i; 583 584 test = reg_test_vf; 585 586 /* 587 * Perform the register test, looping through the test table 588 * until we either fail or reach the null entry. 589 */ 590 while (test->reg) { 591 for (i = 0; i < test->array_len; i++) { 592 switch (test->test_type) { 593 case PATTERN_TEST: 594 REG_PATTERN_TEST(test->reg + (i * 0x40), 595 test->mask, 596 test->write); 597 break; 598 case SET_READ_TEST: 599 REG_SET_AND_CHECK(test->reg + (i * 0x40), 600 test->mask, 601 test->write); 602 break; 603 case WRITE_NO_TEST: 604 writel(test->write, 605 (adapter->hw.hw_addr + test->reg) 606 + (i * 0x40)); 607 break; 608 case TABLE32_TEST: 609 REG_PATTERN_TEST(test->reg + (i * 4), 610 test->mask, 611 test->write); 612 break; 613 case TABLE64_TEST_LO: 614 REG_PATTERN_TEST(test->reg + (i * 8), 615 test->mask, 616 test->write); 617 break; 618 case TABLE64_TEST_HI: 619 REG_PATTERN_TEST((test->reg + 4) + (i * 8), 620 test->mask, 621 test->write); 622 break; 623 } 624 } 625 test++; 626 } 627 628 *data = 0; 629 return *data; 630 } 631 632 static void ixgbevf_diag_test(struct net_device *netdev, 633 struct ethtool_test *eth_test, u64 *data) 634 { 635 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 636 bool if_running = netif_running(netdev); 637 638 set_bit(__IXGBEVF_TESTING, &adapter->state); 639 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 640 /* Offline tests */ 641 642 hw_dbg(&adapter->hw, "offline testing starting\n"); 643 644 /* Link test performed before hardware reset so autoneg doesn't 645 * interfere with test result */ 646 if (ixgbevf_link_test(adapter, &data[1])) 647 eth_test->flags |= ETH_TEST_FL_FAILED; 648 649 if (if_running) 650 /* indicate we're in test mode */ 651 dev_close(netdev); 652 else 653 ixgbevf_reset(adapter); 654 655 hw_dbg(&adapter->hw, "register testing starting\n"); 656 if (ixgbevf_reg_test(adapter, &data[0])) 657 eth_test->flags |= ETH_TEST_FL_FAILED; 658 659 ixgbevf_reset(adapter); 660 661 clear_bit(__IXGBEVF_TESTING, &adapter->state); 662 if (if_running) 663 dev_open(netdev); 664 } else { 665 hw_dbg(&adapter->hw, "online testing starting\n"); 666 /* Online tests */ 667 if (ixgbevf_link_test(adapter, &data[1])) 668 eth_test->flags |= ETH_TEST_FL_FAILED; 669 670 /* Online tests aren't run; pass by default */ 671 data[0] = 0; 672 673 clear_bit(__IXGBEVF_TESTING, &adapter->state); 674 } 675 msleep_interruptible(4 * 1000); 676 } 677 678 static int ixgbevf_nway_reset(struct net_device *netdev) 679 { 680 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 681 682 if (netif_running(netdev)) 683 ixgbevf_reinit_locked(adapter); 684 685 return 0; 686 } 687 688 static const struct ethtool_ops ixgbevf_ethtool_ops = { 689 .get_settings = ixgbevf_get_settings, 690 .get_drvinfo = ixgbevf_get_drvinfo, 691 .get_regs_len = ixgbevf_get_regs_len, 692 .get_regs = ixgbevf_get_regs, 693 .nway_reset = ixgbevf_nway_reset, 694 .get_link = ethtool_op_get_link, 695 .get_ringparam = ixgbevf_get_ringparam, 696 .set_ringparam = ixgbevf_set_ringparam, 697 .get_msglevel = ixgbevf_get_msglevel, 698 .set_msglevel = ixgbevf_set_msglevel, 699 .self_test = ixgbevf_diag_test, 700 .get_sset_count = ixgbevf_get_sset_count, 701 .get_strings = ixgbevf_get_strings, 702 .get_ethtool_stats = ixgbevf_get_ethtool_stats, 703 }; 704 705 void ixgbevf_set_ethtool_ops(struct net_device *netdev) 706 { 707 SET_ETHTOOL_OPS(netdev, &ixgbevf_ethtool_ops); 708 } 709