1 /****************************************************************************** 2 3 Copyright (c) 2001-2014, Intel Corporation 4 All rights reserved. 5 6 Redistribution and use in source and binary forms, with or without 7 modification, are permitted provided that the following conditions are met: 8 9 1. Redistributions of source code must retain the above copyright notice, 10 this list of conditions and the following disclaimer. 11 12 2. Redistributions in binary form must reproduce the above copyright 13 notice, this list of conditions and the following disclaimer in the 14 documentation and/or other materials provided with the distribution. 15 16 3. Neither the name of the Intel Corporation nor the names of its 17 contributors may be used to endorse or promote products derived from 18 this software without specific prior written permission. 19 20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 POSSIBILITY OF SUCH DAMAGE. 31 32 ******************************************************************************/ 33 /*$FreeBSD$*/ 34 35 #include "ixgbe_x540.h" 36 #include "ixgbe_type.h" 37 #include "ixgbe_api.h" 38 #include "ixgbe_common.h" 39 #include "ixgbe_phy.h" 40 41 #define IXGBE_X540_MAX_TX_QUEUES 128 42 #define IXGBE_X540_MAX_RX_QUEUES 128 43 #define IXGBE_X540_RAR_ENTRIES 128 44 #define IXGBE_X540_MC_TBL_SIZE 128 45 #define IXGBE_X540_VFT_TBL_SIZE 128 46 #define IXGBE_X540_RX_PB_SIZE 384 47 48 static s32 ixgbe_poll_flash_update_done_X540(struct ixgbe_hw *hw); 49 static s32 ixgbe_get_swfw_sync_semaphore(struct ixgbe_hw *hw); 50 static void ixgbe_release_swfw_sync_semaphore(struct ixgbe_hw *hw); 51 52 /** 53 * ixgbe_init_ops_X540 - Inits func ptrs and MAC type 54 * @hw: pointer to hardware structure 55 * 56 * Initialize the function pointers and assign the MAC type for X540. 57 * Does not touch the hardware. 58 **/ 59 s32 ixgbe_init_ops_X540(struct ixgbe_hw *hw) 60 { 61 struct ixgbe_mac_info *mac = &hw->mac; 62 struct ixgbe_phy_info *phy = &hw->phy; 63 struct ixgbe_eeprom_info *eeprom = &hw->eeprom; 64 s32 ret_val; 65 66 DEBUGFUNC("ixgbe_init_ops_X540"); 67 68 ret_val = ixgbe_init_phy_ops_generic(hw); 69 ret_val = ixgbe_init_ops_generic(hw); 70 71 72 /* EEPROM */ 73 eeprom->ops.init_params = ixgbe_init_eeprom_params_X540; 74 eeprom->ops.read = ixgbe_read_eerd_X540; 75 eeprom->ops.read_buffer = ixgbe_read_eerd_buffer_X540; 76 eeprom->ops.write = ixgbe_write_eewr_X540; 77 eeprom->ops.write_buffer = ixgbe_write_eewr_buffer_X540; 78 eeprom->ops.update_checksum = ixgbe_update_eeprom_checksum_X540; 79 eeprom->ops.validate_checksum = ixgbe_validate_eeprom_checksum_X540; 80 eeprom->ops.calc_checksum = ixgbe_calc_eeprom_checksum_X540; 81 82 /* PHY */ 83 phy->ops.init = ixgbe_init_phy_ops_generic; 84 phy->ops.reset = NULL; 85 if (!ixgbe_mng_present(hw)) 86 phy->ops.set_phy_power = ixgbe_set_copper_phy_power; 87 88 /* MAC */ 89 mac->ops.reset_hw = ixgbe_reset_hw_X540; 90 mac->ops.enable_relaxed_ordering = ixgbe_enable_relaxed_ordering_gen2; 91 mac->ops.get_media_type = ixgbe_get_media_type_X540; 92 mac->ops.get_supported_physical_layer = 93 ixgbe_get_supported_physical_layer_X540; 94 mac->ops.read_analog_reg8 = NULL; 95 mac->ops.write_analog_reg8 = NULL; 96 mac->ops.start_hw = ixgbe_start_hw_X540; 97 mac->ops.get_san_mac_addr = ixgbe_get_san_mac_addr_generic; 98 mac->ops.set_san_mac_addr = ixgbe_set_san_mac_addr_generic; 99 mac->ops.get_device_caps = ixgbe_get_device_caps_generic; 100 mac->ops.get_wwn_prefix = ixgbe_get_wwn_prefix_generic; 101 mac->ops.get_fcoe_boot_status = ixgbe_get_fcoe_boot_status_generic; 102 mac->ops.acquire_swfw_sync = ixgbe_acquire_swfw_sync_X540; 103 mac->ops.release_swfw_sync = ixgbe_release_swfw_sync_X540; 104 mac->ops.disable_sec_rx_path = ixgbe_disable_sec_rx_path_generic; 105 mac->ops.enable_sec_rx_path = ixgbe_enable_sec_rx_path_generic; 106 107 /* RAR, Multicast, VLAN */ 108 mac->ops.set_vmdq = ixgbe_set_vmdq_generic; 109 mac->ops.set_vmdq_san_mac = ixgbe_set_vmdq_san_mac_generic; 110 mac->ops.clear_vmdq = ixgbe_clear_vmdq_generic; 111 mac->ops.insert_mac_addr = ixgbe_insert_mac_addr_generic; 112 mac->rar_highwater = 1; 113 mac->ops.set_vfta = ixgbe_set_vfta_generic; 114 mac->ops.set_vlvf = ixgbe_set_vlvf_generic; 115 mac->ops.clear_vfta = ixgbe_clear_vfta_generic; 116 mac->ops.init_uta_tables = ixgbe_init_uta_tables_generic; 117 mac->ops.set_mac_anti_spoofing = ixgbe_set_mac_anti_spoofing; 118 mac->ops.set_vlan_anti_spoofing = ixgbe_set_vlan_anti_spoofing; 119 120 /* Link */ 121 mac->ops.get_link_capabilities = 122 ixgbe_get_copper_link_capabilities_generic; 123 mac->ops.setup_link = ixgbe_setup_mac_link_X540; 124 mac->ops.setup_rxpba = ixgbe_set_rxpba_generic; 125 mac->ops.check_link = ixgbe_check_mac_link_generic; 126 127 128 mac->mcft_size = IXGBE_X540_MC_TBL_SIZE; 129 mac->vft_size = IXGBE_X540_VFT_TBL_SIZE; 130 mac->num_rar_entries = IXGBE_X540_RAR_ENTRIES; 131 mac->rx_pb_size = IXGBE_X540_RX_PB_SIZE; 132 mac->max_rx_queues = IXGBE_X540_MAX_RX_QUEUES; 133 mac->max_tx_queues = IXGBE_X540_MAX_TX_QUEUES; 134 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw); 135 136 /* 137 * FWSM register 138 * ARC supported; valid only if manageability features are 139 * enabled. 140 */ 141 mac->arc_subsystem_valid = (IXGBE_READ_REG(hw, IXGBE_FWSM) & 142 IXGBE_FWSM_MODE_MASK) ? TRUE : FALSE; 143 144 hw->mbx.ops.init_params = ixgbe_init_mbx_params_pf; 145 146 /* LEDs */ 147 mac->ops.blink_led_start = ixgbe_blink_led_start_X540; 148 mac->ops.blink_led_stop = ixgbe_blink_led_stop_X540; 149 150 /* Manageability interface */ 151 mac->ops.set_fw_drv_ver = ixgbe_set_fw_drv_ver_generic; 152 153 mac->ops.get_rtrup2tc = ixgbe_dcb_get_rtrup2tc_generic; 154 155 return ret_val; 156 } 157 158 /** 159 * ixgbe_get_link_capabilities_X540 - Determines link capabilities 160 * @hw: pointer to hardware structure 161 * @speed: pointer to link speed 162 * @autoneg: TRUE when autoneg or autotry is enabled 163 * 164 * Determines the link capabilities by reading the AUTOC register. 165 **/ 166 s32 ixgbe_get_link_capabilities_X540(struct ixgbe_hw *hw, 167 ixgbe_link_speed *speed, 168 bool *autoneg) 169 { 170 ixgbe_get_copper_link_capabilities_generic(hw, speed, autoneg); 171 172 return IXGBE_SUCCESS; 173 } 174 175 /** 176 * ixgbe_get_media_type_X540 - Get media type 177 * @hw: pointer to hardware structure 178 * 179 * Returns the media type (fiber, copper, backplane) 180 **/ 181 enum ixgbe_media_type ixgbe_get_media_type_X540(struct ixgbe_hw *hw) 182 { 183 UNREFERENCED_1PARAMETER(hw); 184 return ixgbe_media_type_copper; 185 } 186 187 /** 188 * ixgbe_setup_mac_link_X540 - Sets the auto advertised capabilities 189 * @hw: pointer to hardware structure 190 * @speed: new link speed 191 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed 192 **/ 193 s32 ixgbe_setup_mac_link_X540(struct ixgbe_hw *hw, 194 ixgbe_link_speed speed, 195 bool autoneg_wait_to_complete) 196 { 197 DEBUGFUNC("ixgbe_setup_mac_link_X540"); 198 return hw->phy.ops.setup_link_speed(hw, speed, autoneg_wait_to_complete); 199 } 200 201 /** 202 * ixgbe_reset_hw_X540 - Perform hardware reset 203 * @hw: pointer to hardware structure 204 * 205 * Resets the hardware by resetting the transmit and receive units, masks 206 * and clears all interrupts, and perform a reset. 207 **/ 208 s32 ixgbe_reset_hw_X540(struct ixgbe_hw *hw) 209 { 210 s32 status; 211 u32 ctrl, i; 212 213 DEBUGFUNC("ixgbe_reset_hw_X540"); 214 215 /* Call adapter stop to disable tx/rx and clear interrupts */ 216 status = hw->mac.ops.stop_adapter(hw); 217 if (status != IXGBE_SUCCESS) 218 goto reset_hw_out; 219 220 /* flush pending Tx transactions */ 221 ixgbe_clear_tx_pending(hw); 222 223 mac_reset_top: 224 ctrl = IXGBE_CTRL_RST; 225 ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL); 226 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl); 227 IXGBE_WRITE_FLUSH(hw); 228 229 /* Poll for reset bit to self-clear indicating reset is complete */ 230 for (i = 0; i < 10; i++) { 231 usec_delay(1); 232 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); 233 if (!(ctrl & IXGBE_CTRL_RST_MASK)) 234 break; 235 } 236 237 if (ctrl & IXGBE_CTRL_RST_MASK) { 238 status = IXGBE_ERR_RESET_FAILED; 239 ERROR_REPORT1(IXGBE_ERROR_POLLING, 240 "Reset polling failed to complete.\n"); 241 } 242 msec_delay(100); 243 244 /* 245 * Double resets are required for recovery from certain error 246 * conditions. Between resets, it is necessary to stall to allow time 247 * for any pending HW events to complete. 248 */ 249 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) { 250 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED; 251 goto mac_reset_top; 252 } 253 254 /* Set the Rx packet buffer size. */ 255 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(0), 384 << IXGBE_RXPBSIZE_SHIFT); 256 257 /* Store the permanent mac address */ 258 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr); 259 260 /* 261 * Store MAC address from RAR0, clear receive address registers, and 262 * clear the multicast table. Also reset num_rar_entries to 128, 263 * since we modify this value when programming the SAN MAC address. 264 */ 265 hw->mac.num_rar_entries = 128; 266 hw->mac.ops.init_rx_addrs(hw); 267 268 /* Store the permanent SAN mac address */ 269 hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr); 270 271 /* Add the SAN MAC address to the RAR only if it's a valid address */ 272 if (ixgbe_validate_mac_addr(hw->mac.san_addr) == 0) { 273 hw->mac.ops.set_rar(hw, hw->mac.num_rar_entries - 1, 274 hw->mac.san_addr, 0, IXGBE_RAH_AV); 275 276 /* Save the SAN MAC RAR index */ 277 hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1; 278 279 /* Reserve the last RAR for the SAN MAC address */ 280 hw->mac.num_rar_entries--; 281 } 282 283 /* Store the alternative WWNN/WWPN prefix */ 284 hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix, 285 &hw->mac.wwpn_prefix); 286 287 reset_hw_out: 288 return status; 289 } 290 291 /** 292 * ixgbe_start_hw_X540 - Prepare hardware for Tx/Rx 293 * @hw: pointer to hardware structure 294 * 295 * Starts the hardware using the generic start_hw function 296 * and the generation start_hw function. 297 * Then performs revision-specific operations, if any. 298 **/ 299 s32 ixgbe_start_hw_X540(struct ixgbe_hw *hw) 300 { 301 s32 ret_val = IXGBE_SUCCESS; 302 303 DEBUGFUNC("ixgbe_start_hw_X540"); 304 305 ret_val = ixgbe_start_hw_generic(hw); 306 if (ret_val != IXGBE_SUCCESS) 307 goto out; 308 309 ret_val = ixgbe_start_hw_gen2(hw); 310 311 out: 312 return ret_val; 313 } 314 315 /** 316 * ixgbe_get_supported_physical_layer_X540 - Returns physical layer type 317 * @hw: pointer to hardware structure 318 * 319 * Determines physical layer capabilities of the current configuration. 320 **/ 321 u32 ixgbe_get_supported_physical_layer_X540(struct ixgbe_hw *hw) 322 { 323 u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN; 324 u16 ext_ability = 0; 325 326 DEBUGFUNC("ixgbe_get_supported_physical_layer_X540"); 327 328 hw->phy.ops.read_reg(hw, IXGBE_MDIO_PHY_EXT_ABILITY, 329 IXGBE_MDIO_PMA_PMD_DEV_TYPE, &ext_ability); 330 if (ext_ability & IXGBE_MDIO_PHY_10GBASET_ABILITY) 331 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T; 332 if (ext_ability & IXGBE_MDIO_PHY_1000BASET_ABILITY) 333 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T; 334 if (ext_ability & IXGBE_MDIO_PHY_100BASETX_ABILITY) 335 physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX; 336 337 return physical_layer; 338 } 339 340 /** 341 * ixgbe_init_eeprom_params_X540 - Initialize EEPROM params 342 * @hw: pointer to hardware structure 343 * 344 * Initializes the EEPROM parameters ixgbe_eeprom_info within the 345 * ixgbe_hw struct in order to set up EEPROM access. 346 **/ 347 s32 ixgbe_init_eeprom_params_X540(struct ixgbe_hw *hw) 348 { 349 struct ixgbe_eeprom_info *eeprom = &hw->eeprom; 350 u32 eec; 351 u16 eeprom_size; 352 353 DEBUGFUNC("ixgbe_init_eeprom_params_X540"); 354 355 if (eeprom->type == ixgbe_eeprom_uninitialized) { 356 eeprom->semaphore_delay = 10; 357 eeprom->type = ixgbe_flash; 358 359 eec = IXGBE_READ_REG(hw, IXGBE_EEC); 360 eeprom_size = (u16)((eec & IXGBE_EEC_SIZE) >> 361 IXGBE_EEC_SIZE_SHIFT); 362 eeprom->word_size = 1 << (eeprom_size + 363 IXGBE_EEPROM_WORD_SIZE_SHIFT); 364 365 DEBUGOUT2("Eeprom params: type = %d, size = %d\n", 366 eeprom->type, eeprom->word_size); 367 } 368 369 return IXGBE_SUCCESS; 370 } 371 372 /** 373 * ixgbe_read_eerd_X540- Read EEPROM word using EERD 374 * @hw: pointer to hardware structure 375 * @offset: offset of word in the EEPROM to read 376 * @data: word read from the EEPROM 377 * 378 * Reads a 16 bit word from the EEPROM using the EERD register. 379 **/ 380 s32 ixgbe_read_eerd_X540(struct ixgbe_hw *hw, u16 offset, u16 *data) 381 { 382 s32 status = IXGBE_SUCCESS; 383 384 DEBUGFUNC("ixgbe_read_eerd_X540"); 385 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) == 386 IXGBE_SUCCESS) { 387 status = ixgbe_read_eerd_generic(hw, offset, data); 388 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 389 } else { 390 status = IXGBE_ERR_SWFW_SYNC; 391 } 392 393 return status; 394 } 395 396 /** 397 * ixgbe_read_eerd_buffer_X540- Read EEPROM word(s) using EERD 398 * @hw: pointer to hardware structure 399 * @offset: offset of word in the EEPROM to read 400 * @words: number of words 401 * @data: word(s) read from the EEPROM 402 * 403 * Reads a 16 bit word(s) from the EEPROM using the EERD register. 404 **/ 405 s32 ixgbe_read_eerd_buffer_X540(struct ixgbe_hw *hw, 406 u16 offset, u16 words, u16 *data) 407 { 408 s32 status = IXGBE_SUCCESS; 409 410 DEBUGFUNC("ixgbe_read_eerd_buffer_X540"); 411 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) == 412 IXGBE_SUCCESS) { 413 status = ixgbe_read_eerd_buffer_generic(hw, offset, 414 words, data); 415 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 416 } else { 417 status = IXGBE_ERR_SWFW_SYNC; 418 } 419 420 return status; 421 } 422 423 /** 424 * ixgbe_write_eewr_X540 - Write EEPROM word using EEWR 425 * @hw: pointer to hardware structure 426 * @offset: offset of word in the EEPROM to write 427 * @data: word write to the EEPROM 428 * 429 * Write a 16 bit word to the EEPROM using the EEWR register. 430 **/ 431 s32 ixgbe_write_eewr_X540(struct ixgbe_hw *hw, u16 offset, u16 data) 432 { 433 s32 status = IXGBE_SUCCESS; 434 435 DEBUGFUNC("ixgbe_write_eewr_X540"); 436 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) == 437 IXGBE_SUCCESS) { 438 status = ixgbe_write_eewr_generic(hw, offset, data); 439 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 440 } else { 441 status = IXGBE_ERR_SWFW_SYNC; 442 } 443 444 return status; 445 } 446 447 /** 448 * ixgbe_write_eewr_buffer_X540 - Write EEPROM word(s) using EEWR 449 * @hw: pointer to hardware structure 450 * @offset: offset of word in the EEPROM to write 451 * @words: number of words 452 * @data: word(s) write to the EEPROM 453 * 454 * Write a 16 bit word(s) to the EEPROM using the EEWR register. 455 **/ 456 s32 ixgbe_write_eewr_buffer_X540(struct ixgbe_hw *hw, 457 u16 offset, u16 words, u16 *data) 458 { 459 s32 status = IXGBE_SUCCESS; 460 461 DEBUGFUNC("ixgbe_write_eewr_buffer_X540"); 462 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) == 463 IXGBE_SUCCESS) { 464 status = ixgbe_write_eewr_buffer_generic(hw, offset, 465 words, data); 466 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 467 } else { 468 status = IXGBE_ERR_SWFW_SYNC; 469 } 470 471 return status; 472 } 473 474 /** 475 * ixgbe_calc_eeprom_checksum_X540 - Calculates and returns the checksum 476 * 477 * This function does not use synchronization for EERD and EEWR. It can 478 * be used internally by function which utilize ixgbe_acquire_swfw_sync_X540. 479 * 480 * @hw: pointer to hardware structure 481 * 482 * Returns a negative error code on error, or the 16-bit checksum 483 **/ 484 s32 ixgbe_calc_eeprom_checksum_X540(struct ixgbe_hw *hw) 485 { 486 u16 i, j; 487 u16 checksum = 0; 488 u16 length = 0; 489 u16 pointer = 0; 490 u16 word = 0; 491 u16 checksum_last_word = IXGBE_EEPROM_CHECKSUM; 492 u16 ptr_start = IXGBE_PCIE_ANALOG_PTR; 493 494 /* Do not use hw->eeprom.ops.read because we do not want to take 495 * the synchronization semaphores here. Instead use 496 * ixgbe_read_eerd_generic 497 */ 498 499 DEBUGFUNC("ixgbe_calc_eeprom_checksum_X540"); 500 501 /* Include 0x0-0x3F in the checksum */ 502 for (i = 0; i <= checksum_last_word; i++) { 503 if (ixgbe_read_eerd_generic(hw, i, &word)) { 504 DEBUGOUT("EEPROM read failed\n"); 505 return IXGBE_ERR_EEPROM; 506 } 507 if (i != IXGBE_EEPROM_CHECKSUM) 508 checksum += word; 509 } 510 511 /* Include all data from pointers 0x3, 0x6-0xE. This excludes the 512 * FW, PHY module, and PCIe Expansion/Option ROM pointers. 513 */ 514 for (i = ptr_start; i < IXGBE_FW_PTR; i++) { 515 if (i == IXGBE_PHY_PTR || i == IXGBE_OPTION_ROM_PTR) 516 continue; 517 518 if (ixgbe_read_eerd_generic(hw, i, &pointer)) { 519 DEBUGOUT("EEPROM read failed\n"); 520 return IXGBE_ERR_EEPROM; 521 } 522 523 /* Skip pointer section if the pointer is invalid. */ 524 if (pointer == 0xFFFF || pointer == 0 || 525 pointer >= hw->eeprom.word_size) 526 continue; 527 528 if (ixgbe_read_eerd_generic(hw, pointer, &length)) { 529 DEBUGOUT("EEPROM read failed\n"); 530 return IXGBE_ERR_EEPROM; 531 } 532 533 /* Skip pointer section if length is invalid. */ 534 if (length == 0xFFFF || length == 0 || 535 (pointer + length) >= hw->eeprom.word_size) 536 continue; 537 538 for (j = pointer + 1; j <= pointer + length; j++) { 539 if (ixgbe_read_eerd_generic(hw, j, &word)) { 540 DEBUGOUT("EEPROM read failed\n"); 541 return IXGBE_ERR_EEPROM; 542 } 543 checksum += word; 544 } 545 } 546 547 checksum = (u16)IXGBE_EEPROM_SUM - checksum; 548 549 return (s32)checksum; 550 } 551 552 /** 553 * ixgbe_validate_eeprom_checksum_X540 - Validate EEPROM checksum 554 * @hw: pointer to hardware structure 555 * @checksum_val: calculated checksum 556 * 557 * Performs checksum calculation and validates the EEPROM checksum. If the 558 * caller does not need checksum_val, the value can be NULL. 559 **/ 560 s32 ixgbe_validate_eeprom_checksum_X540(struct ixgbe_hw *hw, 561 u16 *checksum_val) 562 { 563 s32 status; 564 u16 checksum; 565 u16 read_checksum = 0; 566 567 DEBUGFUNC("ixgbe_validate_eeprom_checksum_X540"); 568 569 /* Read the first word from the EEPROM. If this times out or fails, do 570 * not continue or we could be in for a very long wait while every 571 * EEPROM read fails 572 */ 573 status = hw->eeprom.ops.read(hw, 0, &checksum); 574 if (status) { 575 DEBUGOUT("EEPROM read failed\n"); 576 return status; 577 } 578 579 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM)) 580 return IXGBE_ERR_SWFW_SYNC; 581 582 status = hw->eeprom.ops.calc_checksum(hw); 583 if (status < 0) 584 goto out; 585 586 checksum = (u16)(status & 0xffff); 587 588 /* Do not use hw->eeprom.ops.read because we do not want to take 589 * the synchronization semaphores twice here. 590 */ 591 status = ixgbe_read_eerd_generic(hw, IXGBE_EEPROM_CHECKSUM, 592 &read_checksum); 593 if (status) 594 goto out; 595 596 /* Verify read checksum from EEPROM is the same as 597 * calculated checksum 598 */ 599 if (read_checksum != checksum) { 600 ERROR_REPORT1(IXGBE_ERROR_INVALID_STATE, 601 "Invalid EEPROM checksum"); 602 status = IXGBE_ERR_EEPROM_CHECKSUM; 603 } 604 605 /* If the user cares, return the calculated checksum */ 606 if (checksum_val) 607 *checksum_val = checksum; 608 609 out: 610 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 611 612 return status; 613 } 614 615 /** 616 * ixgbe_update_eeprom_checksum_X540 - Updates the EEPROM checksum and flash 617 * @hw: pointer to hardware structure 618 * 619 * After writing EEPROM to shadow RAM using EEWR register, software calculates 620 * checksum and updates the EEPROM and instructs the hardware to update 621 * the flash. 622 **/ 623 s32 ixgbe_update_eeprom_checksum_X540(struct ixgbe_hw *hw) 624 { 625 s32 status; 626 u16 checksum; 627 628 DEBUGFUNC("ixgbe_update_eeprom_checksum_X540"); 629 630 /* Read the first word from the EEPROM. If this times out or fails, do 631 * not continue or we could be in for a very long wait while every 632 * EEPROM read fails 633 */ 634 status = hw->eeprom.ops.read(hw, 0, &checksum); 635 if (status) { 636 DEBUGOUT("EEPROM read failed\n"); 637 return status; 638 } 639 640 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM)) 641 return IXGBE_ERR_SWFW_SYNC; 642 643 status = hw->eeprom.ops.calc_checksum(hw); 644 if (status < 0) 645 goto out; 646 647 checksum = (u16)(status & 0xffff); 648 649 /* Do not use hw->eeprom.ops.write because we do not want to 650 * take the synchronization semaphores twice here. 651 */ 652 status = ixgbe_write_eewr_generic(hw, IXGBE_EEPROM_CHECKSUM, checksum); 653 if (status) 654 goto out; 655 656 status = ixgbe_update_flash_X540(hw); 657 658 out: 659 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); 660 661 return status; 662 } 663 664 /** 665 * ixgbe_update_flash_X540 - Instruct HW to copy EEPROM to Flash device 666 * @hw: pointer to hardware structure 667 * 668 * Set FLUP (bit 23) of the EEC register to instruct Hardware to copy 669 * EEPROM from shadow RAM to the flash device. 670 **/ 671 s32 ixgbe_update_flash_X540(struct ixgbe_hw *hw) 672 { 673 u32 flup; 674 s32 status; 675 676 DEBUGFUNC("ixgbe_update_flash_X540"); 677 678 status = ixgbe_poll_flash_update_done_X540(hw); 679 if (status == IXGBE_ERR_EEPROM) { 680 DEBUGOUT("Flash update time out\n"); 681 goto out; 682 } 683 684 flup = IXGBE_READ_REG(hw, IXGBE_EEC) | IXGBE_EEC_FLUP; 685 IXGBE_WRITE_REG(hw, IXGBE_EEC, flup); 686 687 status = ixgbe_poll_flash_update_done_X540(hw); 688 if (status == IXGBE_SUCCESS) 689 DEBUGOUT("Flash update complete\n"); 690 else 691 DEBUGOUT("Flash update time out\n"); 692 693 if (hw->mac.type == ixgbe_mac_X540 && hw->revision_id == 0) { 694 flup = IXGBE_READ_REG(hw, IXGBE_EEC); 695 696 if (flup & IXGBE_EEC_SEC1VAL) { 697 flup |= IXGBE_EEC_FLUP; 698 IXGBE_WRITE_REG(hw, IXGBE_EEC, flup); 699 } 700 701 status = ixgbe_poll_flash_update_done_X540(hw); 702 if (status == IXGBE_SUCCESS) 703 DEBUGOUT("Flash update complete\n"); 704 else 705 DEBUGOUT("Flash update time out\n"); 706 } 707 out: 708 return status; 709 } 710 711 /** 712 * ixgbe_poll_flash_update_done_X540 - Poll flash update status 713 * @hw: pointer to hardware structure 714 * 715 * Polls the FLUDONE (bit 26) of the EEC Register to determine when the 716 * flash update is done. 717 **/ 718 static s32 ixgbe_poll_flash_update_done_X540(struct ixgbe_hw *hw) 719 { 720 u32 i; 721 u32 reg; 722 s32 status = IXGBE_ERR_EEPROM; 723 724 DEBUGFUNC("ixgbe_poll_flash_update_done_X540"); 725 726 for (i = 0; i < IXGBE_FLUDONE_ATTEMPTS; i++) { 727 reg = IXGBE_READ_REG(hw, IXGBE_EEC); 728 if (reg & IXGBE_EEC_FLUDONE) { 729 status = IXGBE_SUCCESS; 730 break; 731 } 732 msec_delay(5); 733 } 734 735 if (i == IXGBE_FLUDONE_ATTEMPTS) 736 ERROR_REPORT1(IXGBE_ERROR_POLLING, 737 "Flash update status polling timed out"); 738 739 return status; 740 } 741 742 /** 743 * ixgbe_acquire_swfw_sync_X540 - Acquire SWFW semaphore 744 * @hw: pointer to hardware structure 745 * @mask: Mask to specify which semaphore to acquire 746 * 747 * Acquires the SWFW semaphore thought the SW_FW_SYNC register for 748 * the specified function (CSR, PHY0, PHY1, NVM, Flash) 749 **/ 750 s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask) 751 { 752 u32 swmask = mask & IXGBE_GSSR_NVM_PHY_MASK; 753 u32 fwmask = swmask << 5; 754 u32 swi2c_mask = mask & IXGBE_GSSR_I2C_MASK; 755 u32 timeout = 200; 756 u32 hwmask = 0; 757 u32 swfw_sync; 758 u32 i; 759 760 DEBUGFUNC("ixgbe_acquire_swfw_sync_X540"); 761 762 if (swmask & IXGBE_GSSR_EEP_SM) 763 hwmask |= IXGBE_GSSR_FLASH_SM; 764 765 /* SW only mask doesn't have FW bit pair */ 766 if (mask & IXGBE_GSSR_SW_MNG_SM) 767 swmask |= IXGBE_GSSR_SW_MNG_SM; 768 769 swmask |= swi2c_mask; 770 fwmask |= swi2c_mask << 2; 771 for (i = 0; i < timeout; i++) { 772 /* SW NVM semaphore bit is used for access to all 773 * SW_FW_SYNC bits (not just NVM) 774 */ 775 if (ixgbe_get_swfw_sync_semaphore(hw)) 776 return IXGBE_ERR_SWFW_SYNC; 777 778 swfw_sync = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC); 779 if (!(swfw_sync & (fwmask | swmask | hwmask))) { 780 swfw_sync |= swmask; 781 IXGBE_WRITE_REG(hw, IXGBE_SWFW_SYNC, swfw_sync); 782 ixgbe_release_swfw_sync_semaphore(hw); 783 msec_delay(5); 784 return IXGBE_SUCCESS; 785 } 786 /* Firmware currently using resource (fwmask), hardware 787 * currently using resource (hwmask), or other software 788 * thread currently using resource (swmask) 789 */ 790 ixgbe_release_swfw_sync_semaphore(hw); 791 msec_delay(5); 792 } 793 794 /* Failed to get SW only semaphore */ 795 if (swmask == IXGBE_GSSR_SW_MNG_SM) { 796 ERROR_REPORT1(IXGBE_ERROR_POLLING, 797 "Failed to get SW only semaphore"); 798 return IXGBE_ERR_SWFW_SYNC; 799 } 800 801 /* If the resource is not released by the FW/HW the SW can assume that 802 * the FW/HW malfunctions. In that case the SW should set the SW bit(s) 803 * of the requested resource(s) while ignoring the corresponding FW/HW 804 * bits in the SW_FW_SYNC register. 805 */ 806 if (ixgbe_get_swfw_sync_semaphore(hw)) 807 return IXGBE_ERR_SWFW_SYNC; 808 swfw_sync = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC); 809 if (swfw_sync & (fwmask | hwmask)) { 810 swfw_sync |= swmask; 811 IXGBE_WRITE_REG(hw, IXGBE_SWFW_SYNC, swfw_sync); 812 ixgbe_release_swfw_sync_semaphore(hw); 813 msec_delay(5); 814 return IXGBE_SUCCESS; 815 } 816 /* If the resource is not released by other SW the SW can assume that 817 * the other SW malfunctions. In that case the SW should clear all SW 818 * flags that it does not own and then repeat the whole process once 819 * again. 820 */ 821 if (swfw_sync & swmask) { 822 u32 rmask = IXGBE_GSSR_EEP_SM | IXGBE_GSSR_PHY0_SM | 823 IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_MAC_CSR_SM; 824 825 if (swi2c_mask) 826 rmask |= IXGBE_GSSR_I2C_MASK; 827 ixgbe_release_swfw_sync_X540(hw, rmask); 828 ixgbe_release_swfw_sync_semaphore(hw); 829 return IXGBE_ERR_SWFW_SYNC; 830 } 831 ixgbe_release_swfw_sync_semaphore(hw); 832 833 return IXGBE_ERR_SWFW_SYNC; 834 } 835 836 /** 837 * ixgbe_release_swfw_sync_X540 - Release SWFW semaphore 838 * @hw: pointer to hardware structure 839 * @mask: Mask to specify which semaphore to release 840 * 841 * Releases the SWFW semaphore through the SW_FW_SYNC register 842 * for the specified function (CSR, PHY0, PHY1, EVM, Flash) 843 **/ 844 void ixgbe_release_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask) 845 { 846 u32 swmask = mask & (IXGBE_GSSR_NVM_PHY_MASK | IXGBE_GSSR_SW_MNG_SM); 847 u32 swfw_sync; 848 849 DEBUGFUNC("ixgbe_release_swfw_sync_X540"); 850 851 if (mask & IXGBE_GSSR_I2C_MASK) 852 swmask |= mask & IXGBE_GSSR_I2C_MASK; 853 ixgbe_get_swfw_sync_semaphore(hw); 854 855 swfw_sync = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC); 856 swfw_sync &= ~swmask; 857 IXGBE_WRITE_REG(hw, IXGBE_SWFW_SYNC, swfw_sync); 858 859 ixgbe_release_swfw_sync_semaphore(hw); 860 msec_delay(5); 861 } 862 863 /** 864 * ixgbe_get_swfw_sync_semaphore - Get hardware semaphore 865 * @hw: pointer to hardware structure 866 * 867 * Sets the hardware semaphores so SW/FW can gain control of shared resources 868 **/ 869 static s32 ixgbe_get_swfw_sync_semaphore(struct ixgbe_hw *hw) 870 { 871 s32 status = IXGBE_ERR_EEPROM; 872 u32 timeout = 2000; 873 u32 i; 874 u32 swsm; 875 876 DEBUGFUNC("ixgbe_get_swfw_sync_semaphore"); 877 878 /* Get SMBI software semaphore between device drivers first */ 879 for (i = 0; i < timeout; i++) { 880 /* 881 * If the SMBI bit is 0 when we read it, then the bit will be 882 * set and we have the semaphore 883 */ 884 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM); 885 if (!(swsm & IXGBE_SWSM_SMBI)) { 886 status = IXGBE_SUCCESS; 887 break; 888 } 889 usec_delay(50); 890 } 891 892 /* Now get the semaphore between SW/FW through the REGSMP bit */ 893 if (status == IXGBE_SUCCESS) { 894 for (i = 0; i < timeout; i++) { 895 swsm = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC); 896 if (!(swsm & IXGBE_SWFW_REGSMP)) 897 break; 898 899 usec_delay(50); 900 } 901 902 /* 903 * Release semaphores and return error if SW NVM semaphore 904 * was not granted because we don't have access to the EEPROM 905 */ 906 if (i >= timeout) { 907 ERROR_REPORT1(IXGBE_ERROR_POLLING, 908 "REGSMP Software NVM semaphore not granted.\n"); 909 ixgbe_release_swfw_sync_semaphore(hw); 910 status = IXGBE_ERR_EEPROM; 911 } 912 } else { 913 ERROR_REPORT1(IXGBE_ERROR_POLLING, 914 "Software semaphore SMBI between device drivers " 915 "not granted.\n"); 916 } 917 918 return status; 919 } 920 921 /** 922 * ixgbe_release_swfw_sync_semaphore - Release hardware semaphore 923 * @hw: pointer to hardware structure 924 * 925 * This function clears hardware semaphore bits. 926 **/ 927 static void ixgbe_release_swfw_sync_semaphore(struct ixgbe_hw *hw) 928 { 929 u32 swsm; 930 931 DEBUGFUNC("ixgbe_release_swfw_sync_semaphore"); 932 933 /* Release both semaphores by writing 0 to the bits REGSMP and SMBI */ 934 935 swsm = IXGBE_READ_REG(hw, IXGBE_SWFW_SYNC); 936 swsm &= ~IXGBE_SWFW_REGSMP; 937 IXGBE_WRITE_REG(hw, IXGBE_SWFW_SYNC, swsm); 938 939 swsm = IXGBE_READ_REG(hw, IXGBE_SWSM); 940 swsm &= ~IXGBE_SWSM_SMBI; 941 IXGBE_WRITE_REG(hw, IXGBE_SWSM, swsm); 942 943 IXGBE_WRITE_FLUSH(hw); 944 } 945 946 /** 947 * ixgbe_blink_led_start_X540 - Blink LED based on index. 948 * @hw: pointer to hardware structure 949 * @index: led number to blink 950 * 951 * Devices that implement the version 2 interface: 952 * X540 953 **/ 954 s32 ixgbe_blink_led_start_X540(struct ixgbe_hw *hw, u32 index) 955 { 956 u32 macc_reg; 957 u32 ledctl_reg; 958 ixgbe_link_speed speed; 959 bool link_up; 960 961 DEBUGFUNC("ixgbe_blink_led_start_X540"); 962 963 /* 964 * Link should be up in order for the blink bit in the LED control 965 * register to work. Force link and speed in the MAC if link is down. 966 * This will be reversed when we stop the blinking. 967 */ 968 hw->mac.ops.check_link(hw, &speed, &link_up, FALSE); 969 if (link_up == FALSE) { 970 macc_reg = IXGBE_READ_REG(hw, IXGBE_MACC); 971 macc_reg |= IXGBE_MACC_FLU | IXGBE_MACC_FSV_10G | IXGBE_MACC_FS; 972 IXGBE_WRITE_REG(hw, IXGBE_MACC, macc_reg); 973 } 974 /* Set the LED to LINK_UP + BLINK. */ 975 ledctl_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL); 976 ledctl_reg &= ~IXGBE_LED_MODE_MASK(index); 977 ledctl_reg |= IXGBE_LED_BLINK(index); 978 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, ledctl_reg); 979 IXGBE_WRITE_FLUSH(hw); 980 981 return IXGBE_SUCCESS; 982 } 983 984 /** 985 * ixgbe_blink_led_stop_X540 - Stop blinking LED based on index. 986 * @hw: pointer to hardware structure 987 * @index: led number to stop blinking 988 * 989 * Devices that implement the version 2 interface: 990 * X540 991 **/ 992 s32 ixgbe_blink_led_stop_X540(struct ixgbe_hw *hw, u32 index) 993 { 994 u32 macc_reg; 995 u32 ledctl_reg; 996 997 DEBUGFUNC("ixgbe_blink_led_stop_X540"); 998 999 /* Restore the LED to its default value. */ 1000 ledctl_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL); 1001 ledctl_reg &= ~IXGBE_LED_MODE_MASK(index); 1002 ledctl_reg |= IXGBE_LED_LINK_ACTIVE << IXGBE_LED_MODE_SHIFT(index); 1003 ledctl_reg &= ~IXGBE_LED_BLINK(index); 1004 IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, ledctl_reg); 1005 1006 /* Unforce link and speed in the MAC. */ 1007 macc_reg = IXGBE_READ_REG(hw, IXGBE_MACC); 1008 macc_reg &= ~(IXGBE_MACC_FLU | IXGBE_MACC_FSV_10G | IXGBE_MACC_FS); 1009 IXGBE_WRITE_REG(hw, IXGBE_MACC, macc_reg); 1010 IXGBE_WRITE_FLUSH(hw); 1011 1012 return IXGBE_SUCCESS; 1013 } 1014