1 /* 2 * Copyright (C) 2005 - 2013 Emulex 3 * All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License version 2 7 * as published by the Free Software Foundation. The full GNU General 8 * Public License is included in this distribution in the file called COPYING. 9 * 10 * Contact Information: 11 * linux-drivers@emulex.com 12 * 13 * Emulex 14 * 3333 Susan Street 15 * Costa Mesa, CA 92626 16 */ 17 18 #include <linux/prefetch.h> 19 #include <linux/module.h> 20 #include "be.h" 21 #include "be_cmds.h" 22 #include <asm/div64.h> 23 #include <linux/aer.h> 24 #include <linux/if_bridge.h> 25 #include <net/busy_poll.h> 26 27 MODULE_VERSION(DRV_VER); 28 MODULE_DEVICE_TABLE(pci, be_dev_ids); 29 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER); 30 MODULE_AUTHOR("Emulex Corporation"); 31 MODULE_LICENSE("GPL"); 32 33 static unsigned int num_vfs; 34 module_param(num_vfs, uint, S_IRUGO); 35 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize"); 36 37 static ushort rx_frag_size = 2048; 38 module_param(rx_frag_size, ushort, S_IRUGO); 39 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data."); 40 41 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = { 42 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) }, 43 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) }, 44 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) }, 45 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) }, 46 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)}, 47 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)}, 48 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)}, 49 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID6)}, 50 { 0 } 51 }; 52 MODULE_DEVICE_TABLE(pci, be_dev_ids); 53 /* UE Status Low CSR */ 54 static const char * const ue_status_low_desc[] = { 55 "CEV", 56 "CTX", 57 "DBUF", 58 "ERX", 59 "Host", 60 "MPU", 61 "NDMA", 62 "PTC ", 63 "RDMA ", 64 "RXF ", 65 "RXIPS ", 66 "RXULP0 ", 67 "RXULP1 ", 68 "RXULP2 ", 69 "TIM ", 70 "TPOST ", 71 "TPRE ", 72 "TXIPS ", 73 "TXULP0 ", 74 "TXULP1 ", 75 "UC ", 76 "WDMA ", 77 "TXULP2 ", 78 "HOST1 ", 79 "P0_OB_LINK ", 80 "P1_OB_LINK ", 81 "HOST_GPIO ", 82 "MBOX ", 83 "AXGMAC0", 84 "AXGMAC1", 85 "JTAG", 86 "MPU_INTPEND" 87 }; 88 /* UE Status High CSR */ 89 static const char * const ue_status_hi_desc[] = { 90 "LPCMEMHOST", 91 "MGMT_MAC", 92 "PCS0ONLINE", 93 "MPU_IRAM", 94 "PCS1ONLINE", 95 "PCTL0", 96 "PCTL1", 97 "PMEM", 98 "RR", 99 "TXPB", 100 "RXPP", 101 "XAUI", 102 "TXP", 103 "ARM", 104 "IPC", 105 "HOST2", 106 "HOST3", 107 "HOST4", 108 "HOST5", 109 "HOST6", 110 "HOST7", 111 "HOST8", 112 "HOST9", 113 "NETC", 114 "Unknown", 115 "Unknown", 116 "Unknown", 117 "Unknown", 118 "Unknown", 119 "Unknown", 120 "Unknown", 121 "Unknown" 122 }; 123 124 /* Is BE in a multi-channel mode */ 125 static inline bool be_is_mc(struct be_adapter *adapter) { 126 return (adapter->function_mode & FLEX10_MODE || 127 adapter->function_mode & VNIC_MODE || 128 adapter->function_mode & UMC_ENABLED); 129 } 130 131 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q) 132 { 133 struct be_dma_mem *mem = &q->dma_mem; 134 if (mem->va) { 135 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va, 136 mem->dma); 137 mem->va = NULL; 138 } 139 } 140 141 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q, 142 u16 len, u16 entry_size) 143 { 144 struct be_dma_mem *mem = &q->dma_mem; 145 146 memset(q, 0, sizeof(*q)); 147 q->len = len; 148 q->entry_size = entry_size; 149 mem->size = len * entry_size; 150 mem->va = dma_zalloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma, 151 GFP_KERNEL); 152 if (!mem->va) 153 return -ENOMEM; 154 return 0; 155 } 156 157 static void be_reg_intr_set(struct be_adapter *adapter, bool enable) 158 { 159 u32 reg, enabled; 160 161 pci_read_config_dword(adapter->pdev, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, 162 ®); 163 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 164 165 if (!enabled && enable) 166 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 167 else if (enabled && !enable) 168 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; 169 else 170 return; 171 172 pci_write_config_dword(adapter->pdev, 173 PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, reg); 174 } 175 176 static void be_intr_set(struct be_adapter *adapter, bool enable) 177 { 178 int status = 0; 179 180 /* On lancer interrupts can't be controlled via this register */ 181 if (lancer_chip(adapter)) 182 return; 183 184 if (adapter->eeh_error) 185 return; 186 187 status = be_cmd_intr_set(adapter, enable); 188 if (status) 189 be_reg_intr_set(adapter, enable); 190 } 191 192 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted) 193 { 194 u32 val = 0; 195 val |= qid & DB_RQ_RING_ID_MASK; 196 val |= posted << DB_RQ_NUM_POSTED_SHIFT; 197 198 wmb(); 199 iowrite32(val, adapter->db + DB_RQ_OFFSET); 200 } 201 202 static void be_txq_notify(struct be_adapter *adapter, struct be_tx_obj *txo, 203 u16 posted) 204 { 205 u32 val = 0; 206 val |= txo->q.id & DB_TXULP_RING_ID_MASK; 207 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT; 208 209 wmb(); 210 iowrite32(val, adapter->db + txo->db_offset); 211 } 212 213 static void be_eq_notify(struct be_adapter *adapter, u16 qid, 214 bool arm, bool clear_int, u16 num_popped) 215 { 216 u32 val = 0; 217 val |= qid & DB_EQ_RING_ID_MASK; 218 val |= ((qid & DB_EQ_RING_ID_EXT_MASK) << 219 DB_EQ_RING_ID_EXT_MASK_SHIFT); 220 221 if (adapter->eeh_error) 222 return; 223 224 if (arm) 225 val |= 1 << DB_EQ_REARM_SHIFT; 226 if (clear_int) 227 val |= 1 << DB_EQ_CLR_SHIFT; 228 val |= 1 << DB_EQ_EVNT_SHIFT; 229 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT; 230 iowrite32(val, adapter->db + DB_EQ_OFFSET); 231 } 232 233 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped) 234 { 235 u32 val = 0; 236 val |= qid & DB_CQ_RING_ID_MASK; 237 val |= ((qid & DB_CQ_RING_ID_EXT_MASK) << 238 DB_CQ_RING_ID_EXT_MASK_SHIFT); 239 240 if (adapter->eeh_error) 241 return; 242 243 if (arm) 244 val |= 1 << DB_CQ_REARM_SHIFT; 245 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT; 246 iowrite32(val, adapter->db + DB_CQ_OFFSET); 247 } 248 249 static int be_mac_addr_set(struct net_device *netdev, void *p) 250 { 251 struct be_adapter *adapter = netdev_priv(netdev); 252 struct device *dev = &adapter->pdev->dev; 253 struct sockaddr *addr = p; 254 int status; 255 u8 mac[ETH_ALEN]; 256 u32 old_pmac_id = adapter->pmac_id[0], curr_pmac_id = 0; 257 258 if (!is_valid_ether_addr(addr->sa_data)) 259 return -EADDRNOTAVAIL; 260 261 /* The PMAC_ADD cmd may fail if the VF doesn't have FILTMGMT 262 * privilege or if PF did not provision the new MAC address. 263 * On BE3, this cmd will always fail if the VF doesn't have the 264 * FILTMGMT privilege. This failure is OK, only if the PF programmed 265 * the MAC for the VF. 266 */ 267 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data, 268 adapter->if_handle, &adapter->pmac_id[0], 0); 269 if (!status) { 270 curr_pmac_id = adapter->pmac_id[0]; 271 272 /* Delete the old programmed MAC. This call may fail if the 273 * old MAC was already deleted by the PF driver. 274 */ 275 if (adapter->pmac_id[0] != old_pmac_id) 276 be_cmd_pmac_del(adapter, adapter->if_handle, 277 old_pmac_id, 0); 278 } 279 280 /* Decide if the new MAC is successfully activated only after 281 * querying the FW 282 */ 283 status = be_cmd_get_active_mac(adapter, curr_pmac_id, mac); 284 if (status) 285 goto err; 286 287 /* The MAC change did not happen, either due to lack of privilege 288 * or PF didn't pre-provision. 289 */ 290 if (memcmp(addr->sa_data, mac, ETH_ALEN)) { 291 status = -EPERM; 292 goto err; 293 } 294 295 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); 296 dev_info(dev, "MAC address changed to %pM\n", mac); 297 return 0; 298 err: 299 dev_warn(dev, "MAC address change to %pM failed\n", addr->sa_data); 300 return status; 301 } 302 303 /* BE2 supports only v0 cmd */ 304 static void *hw_stats_from_cmd(struct be_adapter *adapter) 305 { 306 if (BE2_chip(adapter)) { 307 struct be_cmd_resp_get_stats_v0 *cmd = adapter->stats_cmd.va; 308 309 return &cmd->hw_stats; 310 } else if (BE3_chip(adapter)) { 311 struct be_cmd_resp_get_stats_v1 *cmd = adapter->stats_cmd.va; 312 313 return &cmd->hw_stats; 314 } else { 315 struct be_cmd_resp_get_stats_v2 *cmd = adapter->stats_cmd.va; 316 317 return &cmd->hw_stats; 318 } 319 } 320 321 /* BE2 supports only v0 cmd */ 322 static void *be_erx_stats_from_cmd(struct be_adapter *adapter) 323 { 324 if (BE2_chip(adapter)) { 325 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter); 326 327 return &hw_stats->erx; 328 } else if (BE3_chip(adapter)) { 329 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter); 330 331 return &hw_stats->erx; 332 } else { 333 struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter); 334 335 return &hw_stats->erx; 336 } 337 } 338 339 static void populate_be_v0_stats(struct be_adapter *adapter) 340 { 341 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter); 342 struct be_pmem_stats *pmem_sts = &hw_stats->pmem; 343 struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf; 344 struct be_port_rxf_stats_v0 *port_stats = 345 &rxf_stats->port[adapter->port_num]; 346 struct be_drv_stats *drvs = &adapter->drv_stats; 347 348 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats)); 349 drvs->rx_pause_frames = port_stats->rx_pause_frames; 350 drvs->rx_crc_errors = port_stats->rx_crc_errors; 351 drvs->rx_control_frames = port_stats->rx_control_frames; 352 drvs->rx_in_range_errors = port_stats->rx_in_range_errors; 353 drvs->rx_frame_too_long = port_stats->rx_frame_too_long; 354 drvs->rx_dropped_runt = port_stats->rx_dropped_runt; 355 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs; 356 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs; 357 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs; 358 drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow; 359 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length; 360 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small; 361 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short; 362 drvs->rx_out_range_errors = port_stats->rx_out_range_errors; 363 drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow; 364 drvs->rx_dropped_header_too_small = 365 port_stats->rx_dropped_header_too_small; 366 drvs->rx_address_filtered = 367 port_stats->rx_address_filtered + 368 port_stats->rx_vlan_filtered; 369 drvs->rx_alignment_symbol_errors = 370 port_stats->rx_alignment_symbol_errors; 371 372 drvs->tx_pauseframes = port_stats->tx_pauseframes; 373 drvs->tx_controlframes = port_stats->tx_controlframes; 374 375 if (adapter->port_num) 376 drvs->jabber_events = rxf_stats->port1_jabber_events; 377 else 378 drvs->jabber_events = rxf_stats->port0_jabber_events; 379 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf; 380 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr; 381 drvs->forwarded_packets = rxf_stats->forwarded_packets; 382 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu; 383 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr; 384 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags; 385 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops; 386 } 387 388 static void populate_be_v1_stats(struct be_adapter *adapter) 389 { 390 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter); 391 struct be_pmem_stats *pmem_sts = &hw_stats->pmem; 392 struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf; 393 struct be_port_rxf_stats_v1 *port_stats = 394 &rxf_stats->port[adapter->port_num]; 395 struct be_drv_stats *drvs = &adapter->drv_stats; 396 397 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats)); 398 drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop; 399 drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames; 400 drvs->rx_pause_frames = port_stats->rx_pause_frames; 401 drvs->rx_crc_errors = port_stats->rx_crc_errors; 402 drvs->rx_control_frames = port_stats->rx_control_frames; 403 drvs->rx_in_range_errors = port_stats->rx_in_range_errors; 404 drvs->rx_frame_too_long = port_stats->rx_frame_too_long; 405 drvs->rx_dropped_runt = port_stats->rx_dropped_runt; 406 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs; 407 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs; 408 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs; 409 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length; 410 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small; 411 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short; 412 drvs->rx_out_range_errors = port_stats->rx_out_range_errors; 413 drvs->rx_dropped_header_too_small = 414 port_stats->rx_dropped_header_too_small; 415 drvs->rx_input_fifo_overflow_drop = 416 port_stats->rx_input_fifo_overflow_drop; 417 drvs->rx_address_filtered = port_stats->rx_address_filtered; 418 drvs->rx_alignment_symbol_errors = 419 port_stats->rx_alignment_symbol_errors; 420 drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop; 421 drvs->tx_pauseframes = port_stats->tx_pauseframes; 422 drvs->tx_controlframes = port_stats->tx_controlframes; 423 drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes; 424 drvs->jabber_events = port_stats->jabber_events; 425 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf; 426 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr; 427 drvs->forwarded_packets = rxf_stats->forwarded_packets; 428 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu; 429 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr; 430 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags; 431 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops; 432 } 433 434 static void populate_be_v2_stats(struct be_adapter *adapter) 435 { 436 struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter); 437 struct be_pmem_stats *pmem_sts = &hw_stats->pmem; 438 struct be_rxf_stats_v2 *rxf_stats = &hw_stats->rxf; 439 struct be_port_rxf_stats_v2 *port_stats = 440 &rxf_stats->port[adapter->port_num]; 441 struct be_drv_stats *drvs = &adapter->drv_stats; 442 443 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats)); 444 drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop; 445 drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames; 446 drvs->rx_pause_frames = port_stats->rx_pause_frames; 447 drvs->rx_crc_errors = port_stats->rx_crc_errors; 448 drvs->rx_control_frames = port_stats->rx_control_frames; 449 drvs->rx_in_range_errors = port_stats->rx_in_range_errors; 450 drvs->rx_frame_too_long = port_stats->rx_frame_too_long; 451 drvs->rx_dropped_runt = port_stats->rx_dropped_runt; 452 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs; 453 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs; 454 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs; 455 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length; 456 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small; 457 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short; 458 drvs->rx_out_range_errors = port_stats->rx_out_range_errors; 459 drvs->rx_dropped_header_too_small = 460 port_stats->rx_dropped_header_too_small; 461 drvs->rx_input_fifo_overflow_drop = 462 port_stats->rx_input_fifo_overflow_drop; 463 drvs->rx_address_filtered = port_stats->rx_address_filtered; 464 drvs->rx_alignment_symbol_errors = 465 port_stats->rx_alignment_symbol_errors; 466 drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop; 467 drvs->tx_pauseframes = port_stats->tx_pauseframes; 468 drvs->tx_controlframes = port_stats->tx_controlframes; 469 drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes; 470 drvs->jabber_events = port_stats->jabber_events; 471 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf; 472 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr; 473 drvs->forwarded_packets = rxf_stats->forwarded_packets; 474 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu; 475 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr; 476 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags; 477 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops; 478 if (be_roce_supported(adapter)) { 479 drvs->rx_roce_bytes_lsd = port_stats->roce_bytes_received_lsd; 480 drvs->rx_roce_bytes_msd = port_stats->roce_bytes_received_msd; 481 drvs->rx_roce_frames = port_stats->roce_frames_received; 482 drvs->roce_drops_crc = port_stats->roce_drops_crc; 483 drvs->roce_drops_payload_len = 484 port_stats->roce_drops_payload_len; 485 } 486 } 487 488 static void populate_lancer_stats(struct be_adapter *adapter) 489 { 490 491 struct be_drv_stats *drvs = &adapter->drv_stats; 492 struct lancer_pport_stats *pport_stats = 493 pport_stats_from_cmd(adapter); 494 495 be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats)); 496 drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo; 497 drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo; 498 drvs->rx_control_frames = pport_stats->rx_control_frames_lo; 499 drvs->rx_in_range_errors = pport_stats->rx_in_range_errors; 500 drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo; 501 drvs->rx_dropped_runt = pport_stats->rx_dropped_runt; 502 drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors; 503 drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors; 504 drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors; 505 drvs->rx_dropped_tcp_length = 506 pport_stats->rx_dropped_invalid_tcp_length; 507 drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small; 508 drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short; 509 drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors; 510 drvs->rx_dropped_header_too_small = 511 pport_stats->rx_dropped_header_too_small; 512 drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow; 513 drvs->rx_address_filtered = 514 pport_stats->rx_address_filtered + 515 pport_stats->rx_vlan_filtered; 516 drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo; 517 drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow; 518 drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo; 519 drvs->tx_controlframes = pport_stats->tx_control_frames_lo; 520 drvs->jabber_events = pport_stats->rx_jabbers; 521 drvs->forwarded_packets = pport_stats->num_forwards_lo; 522 drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo; 523 drvs->rx_drops_too_many_frags = 524 pport_stats->rx_drops_too_many_frags_lo; 525 } 526 527 static void accumulate_16bit_val(u32 *acc, u16 val) 528 { 529 #define lo(x) (x & 0xFFFF) 530 #define hi(x) (x & 0xFFFF0000) 531 bool wrapped = val < lo(*acc); 532 u32 newacc = hi(*acc) + val; 533 534 if (wrapped) 535 newacc += 65536; 536 ACCESS_ONCE(*acc) = newacc; 537 } 538 539 static void populate_erx_stats(struct be_adapter *adapter, 540 struct be_rx_obj *rxo, 541 u32 erx_stat) 542 { 543 if (!BEx_chip(adapter)) 544 rx_stats(rxo)->rx_drops_no_frags = erx_stat; 545 else 546 /* below erx HW counter can actually wrap around after 547 * 65535. Driver accumulates a 32-bit value 548 */ 549 accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags, 550 (u16)erx_stat); 551 } 552 553 void be_parse_stats(struct be_adapter *adapter) 554 { 555 struct be_erx_stats_v2 *erx = be_erx_stats_from_cmd(adapter); 556 struct be_rx_obj *rxo; 557 int i; 558 u32 erx_stat; 559 560 if (lancer_chip(adapter)) { 561 populate_lancer_stats(adapter); 562 } else { 563 if (BE2_chip(adapter)) 564 populate_be_v0_stats(adapter); 565 else if (BE3_chip(adapter)) 566 /* for BE3 */ 567 populate_be_v1_stats(adapter); 568 else 569 populate_be_v2_stats(adapter); 570 571 /* erx_v2 is longer than v0, v1. use v2 for v0, v1 access */ 572 for_all_rx_queues(adapter, rxo, i) { 573 erx_stat = erx->rx_drops_no_fragments[rxo->q.id]; 574 populate_erx_stats(adapter, rxo, erx_stat); 575 } 576 } 577 } 578 579 static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev, 580 struct rtnl_link_stats64 *stats) 581 { 582 struct be_adapter *adapter = netdev_priv(netdev); 583 struct be_drv_stats *drvs = &adapter->drv_stats; 584 struct be_rx_obj *rxo; 585 struct be_tx_obj *txo; 586 u64 pkts, bytes; 587 unsigned int start; 588 int i; 589 590 for_all_rx_queues(adapter, rxo, i) { 591 const struct be_rx_stats *rx_stats = rx_stats(rxo); 592 do { 593 start = u64_stats_fetch_begin_bh(&rx_stats->sync); 594 pkts = rx_stats(rxo)->rx_pkts; 595 bytes = rx_stats(rxo)->rx_bytes; 596 } while (u64_stats_fetch_retry_bh(&rx_stats->sync, start)); 597 stats->rx_packets += pkts; 598 stats->rx_bytes += bytes; 599 stats->multicast += rx_stats(rxo)->rx_mcast_pkts; 600 stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs + 601 rx_stats(rxo)->rx_drops_no_frags; 602 } 603 604 for_all_tx_queues(adapter, txo, i) { 605 const struct be_tx_stats *tx_stats = tx_stats(txo); 606 do { 607 start = u64_stats_fetch_begin_bh(&tx_stats->sync); 608 pkts = tx_stats(txo)->tx_pkts; 609 bytes = tx_stats(txo)->tx_bytes; 610 } while (u64_stats_fetch_retry_bh(&tx_stats->sync, start)); 611 stats->tx_packets += pkts; 612 stats->tx_bytes += bytes; 613 } 614 615 /* bad pkts received */ 616 stats->rx_errors = drvs->rx_crc_errors + 617 drvs->rx_alignment_symbol_errors + 618 drvs->rx_in_range_errors + 619 drvs->rx_out_range_errors + 620 drvs->rx_frame_too_long + 621 drvs->rx_dropped_too_small + 622 drvs->rx_dropped_too_short + 623 drvs->rx_dropped_header_too_small + 624 drvs->rx_dropped_tcp_length + 625 drvs->rx_dropped_runt; 626 627 /* detailed rx errors */ 628 stats->rx_length_errors = drvs->rx_in_range_errors + 629 drvs->rx_out_range_errors + 630 drvs->rx_frame_too_long; 631 632 stats->rx_crc_errors = drvs->rx_crc_errors; 633 634 /* frame alignment errors */ 635 stats->rx_frame_errors = drvs->rx_alignment_symbol_errors; 636 637 /* receiver fifo overrun */ 638 /* drops_no_pbuf is no per i/f, it's per BE card */ 639 stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop + 640 drvs->rx_input_fifo_overflow_drop + 641 drvs->rx_drops_no_pbuf; 642 return stats; 643 } 644 645 void be_link_status_update(struct be_adapter *adapter, u8 link_status) 646 { 647 struct net_device *netdev = adapter->netdev; 648 649 if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) { 650 netif_carrier_off(netdev); 651 adapter->flags |= BE_FLAGS_LINK_STATUS_INIT; 652 } 653 654 if ((link_status & LINK_STATUS_MASK) == LINK_UP) 655 netif_carrier_on(netdev); 656 else 657 netif_carrier_off(netdev); 658 } 659 660 static void be_tx_stats_update(struct be_tx_obj *txo, 661 u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped) 662 { 663 struct be_tx_stats *stats = tx_stats(txo); 664 665 u64_stats_update_begin(&stats->sync); 666 stats->tx_reqs++; 667 stats->tx_wrbs += wrb_cnt; 668 stats->tx_bytes += copied; 669 stats->tx_pkts += (gso_segs ? gso_segs : 1); 670 if (stopped) 671 stats->tx_stops++; 672 u64_stats_update_end(&stats->sync); 673 } 674 675 /* Determine number of WRB entries needed to xmit data in an skb */ 676 static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb, 677 bool *dummy) 678 { 679 int cnt = (skb->len > skb->data_len); 680 681 cnt += skb_shinfo(skb)->nr_frags; 682 683 /* to account for hdr wrb */ 684 cnt++; 685 if (lancer_chip(adapter) || !(cnt & 1)) { 686 *dummy = false; 687 } else { 688 /* add a dummy to make it an even num */ 689 cnt++; 690 *dummy = true; 691 } 692 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT); 693 return cnt; 694 } 695 696 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len) 697 { 698 wrb->frag_pa_hi = upper_32_bits(addr); 699 wrb->frag_pa_lo = addr & 0xFFFFFFFF; 700 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK; 701 wrb->rsvd0 = 0; 702 } 703 704 static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter, 705 struct sk_buff *skb) 706 { 707 u8 vlan_prio; 708 u16 vlan_tag; 709 710 vlan_tag = vlan_tx_tag_get(skb); 711 vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT; 712 /* If vlan priority provided by OS is NOT in available bmap */ 713 if (!(adapter->vlan_prio_bmap & (1 << vlan_prio))) 714 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) | 715 adapter->recommended_prio; 716 717 return vlan_tag; 718 } 719 720 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr, 721 struct sk_buff *skb, u32 wrb_cnt, u32 len, bool skip_hw_vlan) 722 { 723 u16 vlan_tag; 724 725 memset(hdr, 0, sizeof(*hdr)); 726 727 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1); 728 729 if (skb_is_gso(skb)) { 730 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1); 731 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss, 732 hdr, skb_shinfo(skb)->gso_size); 733 if (skb_is_gso_v6(skb) && !lancer_chip(adapter)) 734 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1); 735 } else if (skb->ip_summed == CHECKSUM_PARTIAL) { 736 if (is_tcp_pkt(skb)) 737 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1); 738 else if (is_udp_pkt(skb)) 739 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1); 740 } 741 742 if (vlan_tx_tag_present(skb)) { 743 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1); 744 vlan_tag = be_get_tx_vlan_tag(adapter, skb); 745 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag); 746 } 747 748 /* To skip HW VLAN tagging: evt = 1, compl = 0 */ 749 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, !skip_hw_vlan); 750 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1); 751 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt); 752 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len); 753 } 754 755 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb, 756 bool unmap_single) 757 { 758 dma_addr_t dma; 759 760 be_dws_le_to_cpu(wrb, sizeof(*wrb)); 761 762 dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo; 763 if (wrb->frag_len) { 764 if (unmap_single) 765 dma_unmap_single(dev, dma, wrb->frag_len, 766 DMA_TO_DEVICE); 767 else 768 dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE); 769 } 770 } 771 772 static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq, 773 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb, 774 bool skip_hw_vlan) 775 { 776 dma_addr_t busaddr; 777 int i, copied = 0; 778 struct device *dev = &adapter->pdev->dev; 779 struct sk_buff *first_skb = skb; 780 struct be_eth_wrb *wrb; 781 struct be_eth_hdr_wrb *hdr; 782 bool map_single = false; 783 u16 map_head; 784 785 hdr = queue_head_node(txq); 786 queue_head_inc(txq); 787 map_head = txq->head; 788 789 if (skb->len > skb->data_len) { 790 int len = skb_headlen(skb); 791 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE); 792 if (dma_mapping_error(dev, busaddr)) 793 goto dma_err; 794 map_single = true; 795 wrb = queue_head_node(txq); 796 wrb_fill(wrb, busaddr, len); 797 be_dws_cpu_to_le(wrb, sizeof(*wrb)); 798 queue_head_inc(txq); 799 copied += len; 800 } 801 802 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { 803 const struct skb_frag_struct *frag = 804 &skb_shinfo(skb)->frags[i]; 805 busaddr = skb_frag_dma_map(dev, frag, 0, 806 skb_frag_size(frag), DMA_TO_DEVICE); 807 if (dma_mapping_error(dev, busaddr)) 808 goto dma_err; 809 wrb = queue_head_node(txq); 810 wrb_fill(wrb, busaddr, skb_frag_size(frag)); 811 be_dws_cpu_to_le(wrb, sizeof(*wrb)); 812 queue_head_inc(txq); 813 copied += skb_frag_size(frag); 814 } 815 816 if (dummy_wrb) { 817 wrb = queue_head_node(txq); 818 wrb_fill(wrb, 0, 0); 819 be_dws_cpu_to_le(wrb, sizeof(*wrb)); 820 queue_head_inc(txq); 821 } 822 823 wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied, skip_hw_vlan); 824 be_dws_cpu_to_le(hdr, sizeof(*hdr)); 825 826 return copied; 827 dma_err: 828 txq->head = map_head; 829 while (copied) { 830 wrb = queue_head_node(txq); 831 unmap_tx_frag(dev, wrb, map_single); 832 map_single = false; 833 copied -= wrb->frag_len; 834 queue_head_inc(txq); 835 } 836 return 0; 837 } 838 839 static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter, 840 struct sk_buff *skb, 841 bool *skip_hw_vlan) 842 { 843 u16 vlan_tag = 0; 844 845 skb = skb_share_check(skb, GFP_ATOMIC); 846 if (unlikely(!skb)) 847 return skb; 848 849 if (vlan_tx_tag_present(skb)) 850 vlan_tag = be_get_tx_vlan_tag(adapter, skb); 851 852 if (qnq_async_evt_rcvd(adapter) && adapter->pvid) { 853 if (!vlan_tag) 854 vlan_tag = adapter->pvid; 855 /* f/w workaround to set skip_hw_vlan = 1, informs the F/W to 856 * skip VLAN insertion 857 */ 858 if (skip_hw_vlan) 859 *skip_hw_vlan = true; 860 } 861 862 if (vlan_tag) { 863 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag); 864 if (unlikely(!skb)) 865 return skb; 866 skb->vlan_tci = 0; 867 } 868 869 /* Insert the outer VLAN, if any */ 870 if (adapter->qnq_vid) { 871 vlan_tag = adapter->qnq_vid; 872 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag); 873 if (unlikely(!skb)) 874 return skb; 875 if (skip_hw_vlan) 876 *skip_hw_vlan = true; 877 } 878 879 return skb; 880 } 881 882 static bool be_ipv6_exthdr_check(struct sk_buff *skb) 883 { 884 struct ethhdr *eh = (struct ethhdr *)skb->data; 885 u16 offset = ETH_HLEN; 886 887 if (eh->h_proto == htons(ETH_P_IPV6)) { 888 struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + offset); 889 890 offset += sizeof(struct ipv6hdr); 891 if (ip6h->nexthdr != NEXTHDR_TCP && 892 ip6h->nexthdr != NEXTHDR_UDP) { 893 struct ipv6_opt_hdr *ehdr = 894 (struct ipv6_opt_hdr *) (skb->data + offset); 895 896 /* offending pkt: 2nd byte following IPv6 hdr is 0xff */ 897 if (ehdr->hdrlen == 0xff) 898 return true; 899 } 900 } 901 return false; 902 } 903 904 static int be_vlan_tag_tx_chk(struct be_adapter *adapter, struct sk_buff *skb) 905 { 906 return vlan_tx_tag_present(skb) || adapter->pvid || adapter->qnq_vid; 907 } 908 909 static int be_ipv6_tx_stall_chk(struct be_adapter *adapter, 910 struct sk_buff *skb) 911 { 912 return BE3_chip(adapter) && be_ipv6_exthdr_check(skb); 913 } 914 915 static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter, 916 struct sk_buff *skb, 917 bool *skip_hw_vlan) 918 { 919 struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data; 920 unsigned int eth_hdr_len; 921 struct iphdr *ip; 922 923 /* Lancer, SH-R ASICs have a bug wherein Packets that are 32 bytes or less 924 * may cause a transmit stall on that port. So the work-around is to 925 * pad short packets (<= 32 bytes) to a 36-byte length. 926 */ 927 if (unlikely(!BEx_chip(adapter) && skb->len <= 32)) { 928 if (skb_padto(skb, 36)) 929 goto tx_drop; 930 skb->len = 36; 931 } 932 933 /* For padded packets, BE HW modifies tot_len field in IP header 934 * incorrecly when VLAN tag is inserted by HW. 935 * For padded packets, Lancer computes incorrect checksum. 936 */ 937 eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ? 938 VLAN_ETH_HLEN : ETH_HLEN; 939 if (skb->len <= 60 && 940 (lancer_chip(adapter) || vlan_tx_tag_present(skb)) && 941 is_ipv4_pkt(skb)) { 942 ip = (struct iphdr *)ip_hdr(skb); 943 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len)); 944 } 945 946 /* If vlan tag is already inlined in the packet, skip HW VLAN 947 * tagging in UMC mode 948 */ 949 if ((adapter->function_mode & UMC_ENABLED) && 950 veh->h_vlan_proto == htons(ETH_P_8021Q)) 951 *skip_hw_vlan = true; 952 953 /* HW has a bug wherein it will calculate CSUM for VLAN 954 * pkts even though it is disabled. 955 * Manually insert VLAN in pkt. 956 */ 957 if (skb->ip_summed != CHECKSUM_PARTIAL && 958 vlan_tx_tag_present(skb)) { 959 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan); 960 if (unlikely(!skb)) 961 goto tx_drop; 962 } 963 964 /* HW may lockup when VLAN HW tagging is requested on 965 * certain ipv6 packets. Drop such pkts if the HW workaround to 966 * skip HW tagging is not enabled by FW. 967 */ 968 if (unlikely(be_ipv6_tx_stall_chk(adapter, skb) && 969 (adapter->pvid || adapter->qnq_vid) && 970 !qnq_async_evt_rcvd(adapter))) 971 goto tx_drop; 972 973 /* Manual VLAN tag insertion to prevent: 974 * ASIC lockup when the ASIC inserts VLAN tag into 975 * certain ipv6 packets. Insert VLAN tags in driver, 976 * and set event, completion, vlan bits accordingly 977 * in the Tx WRB. 978 */ 979 if (be_ipv6_tx_stall_chk(adapter, skb) && 980 be_vlan_tag_tx_chk(adapter, skb)) { 981 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan); 982 if (unlikely(!skb)) 983 goto tx_drop; 984 } 985 986 return skb; 987 tx_drop: 988 dev_kfree_skb_any(skb); 989 return NULL; 990 } 991 992 static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev) 993 { 994 struct be_adapter *adapter = netdev_priv(netdev); 995 struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)]; 996 struct be_queue_info *txq = &txo->q; 997 bool dummy_wrb, stopped = false; 998 u32 wrb_cnt = 0, copied = 0; 999 bool skip_hw_vlan = false; 1000 u32 start = txq->head; 1001 1002 skb = be_xmit_workarounds(adapter, skb, &skip_hw_vlan); 1003 if (!skb) { 1004 tx_stats(txo)->tx_drv_drops++; 1005 return NETDEV_TX_OK; 1006 } 1007 1008 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb); 1009 1010 copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb, 1011 skip_hw_vlan); 1012 if (copied) { 1013 int gso_segs = skb_shinfo(skb)->gso_segs; 1014 1015 /* record the sent skb in the sent_skb table */ 1016 BUG_ON(txo->sent_skb_list[start]); 1017 txo->sent_skb_list[start] = skb; 1018 1019 /* Ensure txq has space for the next skb; Else stop the queue 1020 * *BEFORE* ringing the tx doorbell, so that we serialze the 1021 * tx compls of the current transmit which'll wake up the queue 1022 */ 1023 atomic_add(wrb_cnt, &txq->used); 1024 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >= 1025 txq->len) { 1026 netif_stop_subqueue(netdev, skb_get_queue_mapping(skb)); 1027 stopped = true; 1028 } 1029 1030 be_txq_notify(adapter, txo, wrb_cnt); 1031 1032 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped); 1033 } else { 1034 txq->head = start; 1035 tx_stats(txo)->tx_drv_drops++; 1036 dev_kfree_skb_any(skb); 1037 } 1038 return NETDEV_TX_OK; 1039 } 1040 1041 static int be_change_mtu(struct net_device *netdev, int new_mtu) 1042 { 1043 struct be_adapter *adapter = netdev_priv(netdev); 1044 if (new_mtu < BE_MIN_MTU || 1045 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE - 1046 (ETH_HLEN + ETH_FCS_LEN))) { 1047 dev_info(&adapter->pdev->dev, 1048 "MTU must be between %d and %d bytes\n", 1049 BE_MIN_MTU, 1050 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN))); 1051 return -EINVAL; 1052 } 1053 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n", 1054 netdev->mtu, new_mtu); 1055 netdev->mtu = new_mtu; 1056 return 0; 1057 } 1058 1059 /* 1060 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE. 1061 * If the user configures more, place BE in vlan promiscuous mode. 1062 */ 1063 static int be_vid_config(struct be_adapter *adapter) 1064 { 1065 u16 vids[BE_NUM_VLANS_SUPPORTED]; 1066 u16 num = 0, i; 1067 int status = 0; 1068 1069 /* No need to further configure vids if in promiscuous mode */ 1070 if (adapter->promiscuous) 1071 return 0; 1072 1073 if (adapter->vlans_added > be_max_vlans(adapter)) 1074 goto set_vlan_promisc; 1075 1076 /* Construct VLAN Table to give to HW */ 1077 for (i = 0; i < VLAN_N_VID; i++) 1078 if (adapter->vlan_tag[i]) 1079 vids[num++] = cpu_to_le16(i); 1080 1081 status = be_cmd_vlan_config(adapter, adapter->if_handle, 1082 vids, num, 0); 1083 1084 if (status) { 1085 /* Set to VLAN promisc mode as setting VLAN filter failed */ 1086 if (status == MCC_ADDL_STS_INSUFFICIENT_RESOURCES) 1087 goto set_vlan_promisc; 1088 dev_err(&adapter->pdev->dev, 1089 "Setting HW VLAN filtering failed.\n"); 1090 } else { 1091 if (adapter->flags & BE_FLAGS_VLAN_PROMISC) { 1092 /* hw VLAN filtering re-enabled. */ 1093 status = be_cmd_rx_filter(adapter, 1094 BE_FLAGS_VLAN_PROMISC, OFF); 1095 if (!status) { 1096 dev_info(&adapter->pdev->dev, 1097 "Disabling VLAN Promiscuous mode.\n"); 1098 adapter->flags &= ~BE_FLAGS_VLAN_PROMISC; 1099 dev_info(&adapter->pdev->dev, 1100 "Re-Enabling HW VLAN filtering\n"); 1101 } 1102 } 1103 } 1104 1105 return status; 1106 1107 set_vlan_promisc: 1108 dev_warn(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n"); 1109 1110 status = be_cmd_rx_filter(adapter, BE_FLAGS_VLAN_PROMISC, ON); 1111 if (!status) { 1112 dev_info(&adapter->pdev->dev, "Enable VLAN Promiscuous mode\n"); 1113 dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering\n"); 1114 adapter->flags |= BE_FLAGS_VLAN_PROMISC; 1115 } else 1116 dev_err(&adapter->pdev->dev, 1117 "Failed to enable VLAN Promiscuous mode.\n"); 1118 return status; 1119 } 1120 1121 static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid) 1122 { 1123 struct be_adapter *adapter = netdev_priv(netdev); 1124 int status = 0; 1125 1126 1127 /* Packets with VID 0 are always received by Lancer by default */ 1128 if (lancer_chip(adapter) && vid == 0) 1129 goto ret; 1130 1131 adapter->vlan_tag[vid] = 1; 1132 if (adapter->vlans_added <= (be_max_vlans(adapter) + 1)) 1133 status = be_vid_config(adapter); 1134 1135 if (!status) 1136 adapter->vlans_added++; 1137 else 1138 adapter->vlan_tag[vid] = 0; 1139 ret: 1140 return status; 1141 } 1142 1143 static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid) 1144 { 1145 struct be_adapter *adapter = netdev_priv(netdev); 1146 int status = 0; 1147 1148 /* Packets with VID 0 are always received by Lancer by default */ 1149 if (lancer_chip(adapter) && vid == 0) 1150 goto ret; 1151 1152 adapter->vlan_tag[vid] = 0; 1153 if (adapter->vlans_added <= be_max_vlans(adapter)) 1154 status = be_vid_config(adapter); 1155 1156 if (!status) 1157 adapter->vlans_added--; 1158 else 1159 adapter->vlan_tag[vid] = 1; 1160 ret: 1161 return status; 1162 } 1163 1164 static void be_set_rx_mode(struct net_device *netdev) 1165 { 1166 struct be_adapter *adapter = netdev_priv(netdev); 1167 int status; 1168 1169 if (netdev->flags & IFF_PROMISC) { 1170 be_cmd_rx_filter(adapter, IFF_PROMISC, ON); 1171 adapter->promiscuous = true; 1172 goto done; 1173 } 1174 1175 /* BE was previously in promiscuous mode; disable it */ 1176 if (adapter->promiscuous) { 1177 adapter->promiscuous = false; 1178 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF); 1179 1180 if (adapter->vlans_added) 1181 be_vid_config(adapter); 1182 } 1183 1184 /* Enable multicast promisc if num configured exceeds what we support */ 1185 if (netdev->flags & IFF_ALLMULTI || 1186 netdev_mc_count(netdev) > be_max_mc(adapter)) { 1187 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON); 1188 goto done; 1189 } 1190 1191 if (netdev_uc_count(netdev) != adapter->uc_macs) { 1192 struct netdev_hw_addr *ha; 1193 int i = 1; /* First slot is claimed by the Primary MAC */ 1194 1195 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) { 1196 be_cmd_pmac_del(adapter, adapter->if_handle, 1197 adapter->pmac_id[i], 0); 1198 } 1199 1200 if (netdev_uc_count(netdev) > be_max_uc(adapter)) { 1201 be_cmd_rx_filter(adapter, IFF_PROMISC, ON); 1202 adapter->promiscuous = true; 1203 goto done; 1204 } 1205 1206 netdev_for_each_uc_addr(ha, adapter->netdev) { 1207 adapter->uc_macs++; /* First slot is for Primary MAC */ 1208 be_cmd_pmac_add(adapter, (u8 *)ha->addr, 1209 adapter->if_handle, 1210 &adapter->pmac_id[adapter->uc_macs], 0); 1211 } 1212 } 1213 1214 status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON); 1215 1216 /* Set to MCAST promisc mode if setting MULTICAST address fails */ 1217 if (status) { 1218 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n"); 1219 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n"); 1220 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON); 1221 } 1222 done: 1223 return; 1224 } 1225 1226 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) 1227 { 1228 struct be_adapter *adapter = netdev_priv(netdev); 1229 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf]; 1230 int status; 1231 1232 if (!sriov_enabled(adapter)) 1233 return -EPERM; 1234 1235 if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs) 1236 return -EINVAL; 1237 1238 if (BEx_chip(adapter)) { 1239 be_cmd_pmac_del(adapter, vf_cfg->if_handle, vf_cfg->pmac_id, 1240 vf + 1); 1241 1242 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle, 1243 &vf_cfg->pmac_id, vf + 1); 1244 } else { 1245 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle, 1246 vf + 1); 1247 } 1248 1249 if (status) 1250 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n", 1251 mac, vf); 1252 else 1253 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN); 1254 1255 return status; 1256 } 1257 1258 static int be_get_vf_config(struct net_device *netdev, int vf, 1259 struct ifla_vf_info *vi) 1260 { 1261 struct be_adapter *adapter = netdev_priv(netdev); 1262 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf]; 1263 1264 if (!sriov_enabled(adapter)) 1265 return -EPERM; 1266 1267 if (vf >= adapter->num_vfs) 1268 return -EINVAL; 1269 1270 vi->vf = vf; 1271 vi->tx_rate = vf_cfg->tx_rate; 1272 vi->vlan = vf_cfg->vlan_tag & VLAN_VID_MASK; 1273 vi->qos = vf_cfg->vlan_tag >> VLAN_PRIO_SHIFT; 1274 memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN); 1275 1276 return 0; 1277 } 1278 1279 static int be_set_vf_vlan(struct net_device *netdev, 1280 int vf, u16 vlan, u8 qos) 1281 { 1282 struct be_adapter *adapter = netdev_priv(netdev); 1283 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf]; 1284 int status = 0; 1285 1286 if (!sriov_enabled(adapter)) 1287 return -EPERM; 1288 1289 if (vf >= adapter->num_vfs || vlan > 4095 || qos > 7) 1290 return -EINVAL; 1291 1292 if (vlan || qos) { 1293 vlan |= qos << VLAN_PRIO_SHIFT; 1294 if (vf_cfg->vlan_tag != vlan) { 1295 /* If this is new value, program it. Else skip. */ 1296 vf_cfg->vlan_tag = vlan; 1297 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1, 1298 vf_cfg->if_handle, 0); 1299 } 1300 } else { 1301 /* Reset Transparent Vlan Tagging. */ 1302 vf_cfg->vlan_tag = 0; 1303 vlan = vf_cfg->def_vid; 1304 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1, 1305 vf_cfg->if_handle, 0); 1306 } 1307 1308 1309 if (status) 1310 dev_info(&adapter->pdev->dev, 1311 "VLAN %d config on VF %d failed\n", vlan, vf); 1312 return status; 1313 } 1314 1315 static int be_set_vf_tx_rate(struct net_device *netdev, 1316 int vf, int rate) 1317 { 1318 struct be_adapter *adapter = netdev_priv(netdev); 1319 int status = 0; 1320 1321 if (!sriov_enabled(adapter)) 1322 return -EPERM; 1323 1324 if (vf >= adapter->num_vfs) 1325 return -EINVAL; 1326 1327 if (rate < 100 || rate > 10000) { 1328 dev_err(&adapter->pdev->dev, 1329 "tx rate must be between 100 and 10000 Mbps\n"); 1330 return -EINVAL; 1331 } 1332 1333 if (lancer_chip(adapter)) 1334 status = be_cmd_set_profile_config(adapter, rate / 10, vf + 1); 1335 else 1336 status = be_cmd_set_qos(adapter, rate / 10, vf + 1); 1337 1338 if (status) 1339 dev_err(&adapter->pdev->dev, 1340 "tx rate %d on VF %d failed\n", rate, vf); 1341 else 1342 adapter->vf_cfg[vf].tx_rate = rate; 1343 return status; 1344 } 1345 1346 static void be_aic_update(struct be_aic_obj *aic, u64 rx_pkts, u64 tx_pkts, 1347 ulong now) 1348 { 1349 aic->rx_pkts_prev = rx_pkts; 1350 aic->tx_reqs_prev = tx_pkts; 1351 aic->jiffies = now; 1352 } 1353 1354 static void be_eqd_update(struct be_adapter *adapter) 1355 { 1356 struct be_set_eqd set_eqd[MAX_EVT_QS]; 1357 int eqd, i, num = 0, start; 1358 struct be_aic_obj *aic; 1359 struct be_eq_obj *eqo; 1360 struct be_rx_obj *rxo; 1361 struct be_tx_obj *txo; 1362 u64 rx_pkts, tx_pkts; 1363 ulong now; 1364 u32 pps, delta; 1365 1366 for_all_evt_queues(adapter, eqo, i) { 1367 aic = &adapter->aic_obj[eqo->idx]; 1368 if (!aic->enable) { 1369 if (aic->jiffies) 1370 aic->jiffies = 0; 1371 eqd = aic->et_eqd; 1372 goto modify_eqd; 1373 } 1374 1375 rxo = &adapter->rx_obj[eqo->idx]; 1376 do { 1377 start = u64_stats_fetch_begin_bh(&rxo->stats.sync); 1378 rx_pkts = rxo->stats.rx_pkts; 1379 } while (u64_stats_fetch_retry_bh(&rxo->stats.sync, start)); 1380 1381 txo = &adapter->tx_obj[eqo->idx]; 1382 do { 1383 start = u64_stats_fetch_begin_bh(&txo->stats.sync); 1384 tx_pkts = txo->stats.tx_reqs; 1385 } while (u64_stats_fetch_retry_bh(&txo->stats.sync, start)); 1386 1387 1388 /* Skip, if wrapped around or first calculation */ 1389 now = jiffies; 1390 if (!aic->jiffies || time_before(now, aic->jiffies) || 1391 rx_pkts < aic->rx_pkts_prev || 1392 tx_pkts < aic->tx_reqs_prev) { 1393 be_aic_update(aic, rx_pkts, tx_pkts, now); 1394 continue; 1395 } 1396 1397 delta = jiffies_to_msecs(now - aic->jiffies); 1398 pps = (((u32)(rx_pkts - aic->rx_pkts_prev) * 1000) / delta) + 1399 (((u32)(tx_pkts - aic->tx_reqs_prev) * 1000) / delta); 1400 eqd = (pps / 15000) << 2; 1401 1402 if (eqd < 8) 1403 eqd = 0; 1404 eqd = min_t(u32, eqd, aic->max_eqd); 1405 eqd = max_t(u32, eqd, aic->min_eqd); 1406 1407 be_aic_update(aic, rx_pkts, tx_pkts, now); 1408 modify_eqd: 1409 if (eqd != aic->prev_eqd) { 1410 set_eqd[num].delay_multiplier = (eqd * 65)/100; 1411 set_eqd[num].eq_id = eqo->q.id; 1412 aic->prev_eqd = eqd; 1413 num++; 1414 } 1415 } 1416 1417 if (num) 1418 be_cmd_modify_eqd(adapter, set_eqd, num); 1419 } 1420 1421 static void be_rx_stats_update(struct be_rx_obj *rxo, 1422 struct be_rx_compl_info *rxcp) 1423 { 1424 struct be_rx_stats *stats = rx_stats(rxo); 1425 1426 u64_stats_update_begin(&stats->sync); 1427 stats->rx_compl++; 1428 stats->rx_bytes += rxcp->pkt_size; 1429 stats->rx_pkts++; 1430 if (rxcp->pkt_type == BE_MULTICAST_PACKET) 1431 stats->rx_mcast_pkts++; 1432 if (rxcp->err) 1433 stats->rx_compl_err++; 1434 u64_stats_update_end(&stats->sync); 1435 } 1436 1437 static inline bool csum_passed(struct be_rx_compl_info *rxcp) 1438 { 1439 /* L4 checksum is not reliable for non TCP/UDP packets. 1440 * Also ignore ipcksm for ipv6 pkts */ 1441 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum && 1442 (rxcp->ip_csum || rxcp->ipv6); 1443 } 1444 1445 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo, 1446 u16 frag_idx) 1447 { 1448 struct be_adapter *adapter = rxo->adapter; 1449 struct be_rx_page_info *rx_page_info; 1450 struct be_queue_info *rxq = &rxo->q; 1451 1452 rx_page_info = &rxo->page_info_tbl[frag_idx]; 1453 BUG_ON(!rx_page_info->page); 1454 1455 if (rx_page_info->last_page_user) { 1456 dma_unmap_page(&adapter->pdev->dev, 1457 dma_unmap_addr(rx_page_info, bus), 1458 adapter->big_page_size, DMA_FROM_DEVICE); 1459 rx_page_info->last_page_user = false; 1460 } 1461 1462 atomic_dec(&rxq->used); 1463 return rx_page_info; 1464 } 1465 1466 /* Throwaway the data in the Rx completion */ 1467 static void be_rx_compl_discard(struct be_rx_obj *rxo, 1468 struct be_rx_compl_info *rxcp) 1469 { 1470 struct be_queue_info *rxq = &rxo->q; 1471 struct be_rx_page_info *page_info; 1472 u16 i, num_rcvd = rxcp->num_rcvd; 1473 1474 for (i = 0; i < num_rcvd; i++) { 1475 page_info = get_rx_page_info(rxo, rxcp->rxq_idx); 1476 put_page(page_info->page); 1477 memset(page_info, 0, sizeof(*page_info)); 1478 index_inc(&rxcp->rxq_idx, rxq->len); 1479 } 1480 } 1481 1482 /* 1483 * skb_fill_rx_data forms a complete skb for an ether frame 1484 * indicated by rxcp. 1485 */ 1486 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb, 1487 struct be_rx_compl_info *rxcp) 1488 { 1489 struct be_queue_info *rxq = &rxo->q; 1490 struct be_rx_page_info *page_info; 1491 u16 i, j; 1492 u16 hdr_len, curr_frag_len, remaining; 1493 u8 *start; 1494 1495 page_info = get_rx_page_info(rxo, rxcp->rxq_idx); 1496 start = page_address(page_info->page) + page_info->page_offset; 1497 prefetch(start); 1498 1499 /* Copy data in the first descriptor of this completion */ 1500 curr_frag_len = min(rxcp->pkt_size, rx_frag_size); 1501 1502 skb->len = curr_frag_len; 1503 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */ 1504 memcpy(skb->data, start, curr_frag_len); 1505 /* Complete packet has now been moved to data */ 1506 put_page(page_info->page); 1507 skb->data_len = 0; 1508 skb->tail += curr_frag_len; 1509 } else { 1510 hdr_len = ETH_HLEN; 1511 memcpy(skb->data, start, hdr_len); 1512 skb_shinfo(skb)->nr_frags = 1; 1513 skb_frag_set_page(skb, 0, page_info->page); 1514 skb_shinfo(skb)->frags[0].page_offset = 1515 page_info->page_offset + hdr_len; 1516 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len); 1517 skb->data_len = curr_frag_len - hdr_len; 1518 skb->truesize += rx_frag_size; 1519 skb->tail += hdr_len; 1520 } 1521 page_info->page = NULL; 1522 1523 if (rxcp->pkt_size <= rx_frag_size) { 1524 BUG_ON(rxcp->num_rcvd != 1); 1525 return; 1526 } 1527 1528 /* More frags present for this completion */ 1529 index_inc(&rxcp->rxq_idx, rxq->len); 1530 remaining = rxcp->pkt_size - curr_frag_len; 1531 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) { 1532 page_info = get_rx_page_info(rxo, rxcp->rxq_idx); 1533 curr_frag_len = min(remaining, rx_frag_size); 1534 1535 /* Coalesce all frags from the same physical page in one slot */ 1536 if (page_info->page_offset == 0) { 1537 /* Fresh page */ 1538 j++; 1539 skb_frag_set_page(skb, j, page_info->page); 1540 skb_shinfo(skb)->frags[j].page_offset = 1541 page_info->page_offset; 1542 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0); 1543 skb_shinfo(skb)->nr_frags++; 1544 } else { 1545 put_page(page_info->page); 1546 } 1547 1548 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len); 1549 skb->len += curr_frag_len; 1550 skb->data_len += curr_frag_len; 1551 skb->truesize += rx_frag_size; 1552 remaining -= curr_frag_len; 1553 index_inc(&rxcp->rxq_idx, rxq->len); 1554 page_info->page = NULL; 1555 } 1556 BUG_ON(j > MAX_SKB_FRAGS); 1557 } 1558 1559 /* Process the RX completion indicated by rxcp when GRO is disabled */ 1560 static void be_rx_compl_process(struct be_rx_obj *rxo, struct napi_struct *napi, 1561 struct be_rx_compl_info *rxcp) 1562 { 1563 struct be_adapter *adapter = rxo->adapter; 1564 struct net_device *netdev = adapter->netdev; 1565 struct sk_buff *skb; 1566 1567 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE); 1568 if (unlikely(!skb)) { 1569 rx_stats(rxo)->rx_drops_no_skbs++; 1570 be_rx_compl_discard(rxo, rxcp); 1571 return; 1572 } 1573 1574 skb_fill_rx_data(rxo, skb, rxcp); 1575 1576 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp))) 1577 skb->ip_summed = CHECKSUM_UNNECESSARY; 1578 else 1579 skb_checksum_none_assert(skb); 1580 1581 skb->protocol = eth_type_trans(skb, netdev); 1582 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]); 1583 if (netdev->features & NETIF_F_RXHASH) 1584 skb->rxhash = rxcp->rss_hash; 1585 skb_mark_napi_id(skb, napi); 1586 1587 if (rxcp->vlanf) 1588 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag); 1589 1590 netif_receive_skb(skb); 1591 } 1592 1593 /* Process the RX completion indicated by rxcp when GRO is enabled */ 1594 static void be_rx_compl_process_gro(struct be_rx_obj *rxo, 1595 struct napi_struct *napi, 1596 struct be_rx_compl_info *rxcp) 1597 { 1598 struct be_adapter *adapter = rxo->adapter; 1599 struct be_rx_page_info *page_info; 1600 struct sk_buff *skb = NULL; 1601 struct be_queue_info *rxq = &rxo->q; 1602 u16 remaining, curr_frag_len; 1603 u16 i, j; 1604 1605 skb = napi_get_frags(napi); 1606 if (!skb) { 1607 be_rx_compl_discard(rxo, rxcp); 1608 return; 1609 } 1610 1611 remaining = rxcp->pkt_size; 1612 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) { 1613 page_info = get_rx_page_info(rxo, rxcp->rxq_idx); 1614 1615 curr_frag_len = min(remaining, rx_frag_size); 1616 1617 /* Coalesce all frags from the same physical page in one slot */ 1618 if (i == 0 || page_info->page_offset == 0) { 1619 /* First frag or Fresh page */ 1620 j++; 1621 skb_frag_set_page(skb, j, page_info->page); 1622 skb_shinfo(skb)->frags[j].page_offset = 1623 page_info->page_offset; 1624 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0); 1625 } else { 1626 put_page(page_info->page); 1627 } 1628 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len); 1629 skb->truesize += rx_frag_size; 1630 remaining -= curr_frag_len; 1631 index_inc(&rxcp->rxq_idx, rxq->len); 1632 memset(page_info, 0, sizeof(*page_info)); 1633 } 1634 BUG_ON(j > MAX_SKB_FRAGS); 1635 1636 skb_shinfo(skb)->nr_frags = j + 1; 1637 skb->len = rxcp->pkt_size; 1638 skb->data_len = rxcp->pkt_size; 1639 skb->ip_summed = CHECKSUM_UNNECESSARY; 1640 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]); 1641 if (adapter->netdev->features & NETIF_F_RXHASH) 1642 skb->rxhash = rxcp->rss_hash; 1643 skb_mark_napi_id(skb, napi); 1644 1645 if (rxcp->vlanf) 1646 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag); 1647 1648 napi_gro_frags(napi); 1649 } 1650 1651 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl, 1652 struct be_rx_compl_info *rxcp) 1653 { 1654 rxcp->pkt_size = 1655 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl); 1656 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl); 1657 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl); 1658 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl); 1659 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl); 1660 rxcp->ip_csum = 1661 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl); 1662 rxcp->l4_csum = 1663 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl); 1664 rxcp->ipv6 = 1665 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl); 1666 rxcp->rxq_idx = 1667 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl); 1668 rxcp->num_rcvd = 1669 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl); 1670 rxcp->pkt_type = 1671 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl); 1672 rxcp->rss_hash = 1673 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl); 1674 if (rxcp->vlanf) { 1675 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm, 1676 compl); 1677 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag, 1678 compl); 1679 } 1680 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl); 1681 } 1682 1683 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl, 1684 struct be_rx_compl_info *rxcp) 1685 { 1686 rxcp->pkt_size = 1687 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl); 1688 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl); 1689 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl); 1690 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl); 1691 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl); 1692 rxcp->ip_csum = 1693 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl); 1694 rxcp->l4_csum = 1695 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl); 1696 rxcp->ipv6 = 1697 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl); 1698 rxcp->rxq_idx = 1699 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl); 1700 rxcp->num_rcvd = 1701 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl); 1702 rxcp->pkt_type = 1703 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl); 1704 rxcp->rss_hash = 1705 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl); 1706 if (rxcp->vlanf) { 1707 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm, 1708 compl); 1709 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag, 1710 compl); 1711 } 1712 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl); 1713 rxcp->ip_frag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, 1714 ip_frag, compl); 1715 } 1716 1717 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo) 1718 { 1719 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq); 1720 struct be_rx_compl_info *rxcp = &rxo->rxcp; 1721 struct be_adapter *adapter = rxo->adapter; 1722 1723 /* For checking the valid bit it is Ok to use either definition as the 1724 * valid bit is at the same position in both v0 and v1 Rx compl */ 1725 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0) 1726 return NULL; 1727 1728 rmb(); 1729 be_dws_le_to_cpu(compl, sizeof(*compl)); 1730 1731 if (adapter->be3_native) 1732 be_parse_rx_compl_v1(compl, rxcp); 1733 else 1734 be_parse_rx_compl_v0(compl, rxcp); 1735 1736 if (rxcp->ip_frag) 1737 rxcp->l4_csum = 0; 1738 1739 if (rxcp->vlanf) { 1740 /* vlanf could be wrongly set in some cards. 1741 * ignore if vtm is not set */ 1742 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm) 1743 rxcp->vlanf = 0; 1744 1745 if (!lancer_chip(adapter)) 1746 rxcp->vlan_tag = swab16(rxcp->vlan_tag); 1747 1748 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) && 1749 !adapter->vlan_tag[rxcp->vlan_tag]) 1750 rxcp->vlanf = 0; 1751 } 1752 1753 /* As the compl has been parsed, reset it; we wont touch it again */ 1754 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0; 1755 1756 queue_tail_inc(&rxo->cq); 1757 return rxcp; 1758 } 1759 1760 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp) 1761 { 1762 u32 order = get_order(size); 1763 1764 if (order > 0) 1765 gfp |= __GFP_COMP; 1766 return alloc_pages(gfp, order); 1767 } 1768 1769 /* 1770 * Allocate a page, split it to fragments of size rx_frag_size and post as 1771 * receive buffers to BE 1772 */ 1773 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp) 1774 { 1775 struct be_adapter *adapter = rxo->adapter; 1776 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL; 1777 struct be_queue_info *rxq = &rxo->q; 1778 struct page *pagep = NULL; 1779 struct be_eth_rx_d *rxd; 1780 u64 page_dmaaddr = 0, frag_dmaaddr; 1781 u32 posted, page_offset = 0; 1782 1783 page_info = &rxo->page_info_tbl[rxq->head]; 1784 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) { 1785 if (!pagep) { 1786 pagep = be_alloc_pages(adapter->big_page_size, gfp); 1787 if (unlikely(!pagep)) { 1788 rx_stats(rxo)->rx_post_fail++; 1789 break; 1790 } 1791 page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep, 1792 0, adapter->big_page_size, 1793 DMA_FROM_DEVICE); 1794 page_info->page_offset = 0; 1795 } else { 1796 get_page(pagep); 1797 page_info->page_offset = page_offset + rx_frag_size; 1798 } 1799 page_offset = page_info->page_offset; 1800 page_info->page = pagep; 1801 dma_unmap_addr_set(page_info, bus, page_dmaaddr); 1802 frag_dmaaddr = page_dmaaddr + page_info->page_offset; 1803 1804 rxd = queue_head_node(rxq); 1805 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF); 1806 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr)); 1807 1808 /* Any space left in the current big page for another frag? */ 1809 if ((page_offset + rx_frag_size + rx_frag_size) > 1810 adapter->big_page_size) { 1811 pagep = NULL; 1812 page_info->last_page_user = true; 1813 } 1814 1815 prev_page_info = page_info; 1816 queue_head_inc(rxq); 1817 page_info = &rxo->page_info_tbl[rxq->head]; 1818 } 1819 if (pagep) 1820 prev_page_info->last_page_user = true; 1821 1822 if (posted) { 1823 atomic_add(posted, &rxq->used); 1824 if (rxo->rx_post_starved) 1825 rxo->rx_post_starved = false; 1826 be_rxq_notify(adapter, rxq->id, posted); 1827 } else if (atomic_read(&rxq->used) == 0) { 1828 /* Let be_worker replenish when memory is available */ 1829 rxo->rx_post_starved = true; 1830 } 1831 } 1832 1833 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq) 1834 { 1835 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq); 1836 1837 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0) 1838 return NULL; 1839 1840 rmb(); 1841 be_dws_le_to_cpu(txcp, sizeof(*txcp)); 1842 1843 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0; 1844 1845 queue_tail_inc(tx_cq); 1846 return txcp; 1847 } 1848 1849 static u16 be_tx_compl_process(struct be_adapter *adapter, 1850 struct be_tx_obj *txo, u16 last_index) 1851 { 1852 struct be_queue_info *txq = &txo->q; 1853 struct be_eth_wrb *wrb; 1854 struct sk_buff **sent_skbs = txo->sent_skb_list; 1855 struct sk_buff *sent_skb; 1856 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */ 1857 bool unmap_skb_hdr = true; 1858 1859 sent_skb = sent_skbs[txq->tail]; 1860 BUG_ON(!sent_skb); 1861 sent_skbs[txq->tail] = NULL; 1862 1863 /* skip header wrb */ 1864 queue_tail_inc(txq); 1865 1866 do { 1867 cur_index = txq->tail; 1868 wrb = queue_tail_node(txq); 1869 unmap_tx_frag(&adapter->pdev->dev, wrb, 1870 (unmap_skb_hdr && skb_headlen(sent_skb))); 1871 unmap_skb_hdr = false; 1872 1873 num_wrbs++; 1874 queue_tail_inc(txq); 1875 } while (cur_index != last_index); 1876 1877 kfree_skb(sent_skb); 1878 return num_wrbs; 1879 } 1880 1881 /* Return the number of events in the event queue */ 1882 static inline int events_get(struct be_eq_obj *eqo) 1883 { 1884 struct be_eq_entry *eqe; 1885 int num = 0; 1886 1887 do { 1888 eqe = queue_tail_node(&eqo->q); 1889 if (eqe->evt == 0) 1890 break; 1891 1892 rmb(); 1893 eqe->evt = 0; 1894 num++; 1895 queue_tail_inc(&eqo->q); 1896 } while (true); 1897 1898 return num; 1899 } 1900 1901 /* Leaves the EQ is disarmed state */ 1902 static void be_eq_clean(struct be_eq_obj *eqo) 1903 { 1904 int num = events_get(eqo); 1905 1906 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num); 1907 } 1908 1909 static void be_rx_cq_clean(struct be_rx_obj *rxo) 1910 { 1911 struct be_rx_page_info *page_info; 1912 struct be_queue_info *rxq = &rxo->q; 1913 struct be_queue_info *rx_cq = &rxo->cq; 1914 struct be_rx_compl_info *rxcp; 1915 struct be_adapter *adapter = rxo->adapter; 1916 int flush_wait = 0; 1917 u16 tail; 1918 1919 /* Consume pending rx completions. 1920 * Wait for the flush completion (identified by zero num_rcvd) 1921 * to arrive. Notify CQ even when there are no more CQ entries 1922 * for HW to flush partially coalesced CQ entries. 1923 * In Lancer, there is no need to wait for flush compl. 1924 */ 1925 for (;;) { 1926 rxcp = be_rx_compl_get(rxo); 1927 if (rxcp == NULL) { 1928 if (lancer_chip(adapter)) 1929 break; 1930 1931 if (flush_wait++ > 10 || be_hw_error(adapter)) { 1932 dev_warn(&adapter->pdev->dev, 1933 "did not receive flush compl\n"); 1934 break; 1935 } 1936 be_cq_notify(adapter, rx_cq->id, true, 0); 1937 mdelay(1); 1938 } else { 1939 be_rx_compl_discard(rxo, rxcp); 1940 be_cq_notify(adapter, rx_cq->id, false, 1); 1941 if (rxcp->num_rcvd == 0) 1942 break; 1943 } 1944 } 1945 1946 /* After cleanup, leave the CQ in unarmed state */ 1947 be_cq_notify(adapter, rx_cq->id, false, 0); 1948 1949 /* Then free posted rx buffers that were not used */ 1950 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len; 1951 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) { 1952 page_info = get_rx_page_info(rxo, tail); 1953 put_page(page_info->page); 1954 memset(page_info, 0, sizeof(*page_info)); 1955 } 1956 BUG_ON(atomic_read(&rxq->used)); 1957 rxq->tail = rxq->head = 0; 1958 } 1959 1960 static void be_tx_compl_clean(struct be_adapter *adapter) 1961 { 1962 struct be_tx_obj *txo; 1963 struct be_queue_info *txq; 1964 struct be_eth_tx_compl *txcp; 1965 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0; 1966 struct sk_buff *sent_skb; 1967 bool dummy_wrb; 1968 int i, pending_txqs; 1969 1970 /* Wait for a max of 200ms for all the tx-completions to arrive. */ 1971 do { 1972 pending_txqs = adapter->num_tx_qs; 1973 1974 for_all_tx_queues(adapter, txo, i) { 1975 txq = &txo->q; 1976 while ((txcp = be_tx_compl_get(&txo->cq))) { 1977 end_idx = 1978 AMAP_GET_BITS(struct amap_eth_tx_compl, 1979 wrb_index, txcp); 1980 num_wrbs += be_tx_compl_process(adapter, txo, 1981 end_idx); 1982 cmpl++; 1983 } 1984 if (cmpl) { 1985 be_cq_notify(adapter, txo->cq.id, false, cmpl); 1986 atomic_sub(num_wrbs, &txq->used); 1987 cmpl = 0; 1988 num_wrbs = 0; 1989 } 1990 if (atomic_read(&txq->used) == 0) 1991 pending_txqs--; 1992 } 1993 1994 if (pending_txqs == 0 || ++timeo > 200) 1995 break; 1996 1997 mdelay(1); 1998 } while (true); 1999 2000 for_all_tx_queues(adapter, txo, i) { 2001 txq = &txo->q; 2002 if (atomic_read(&txq->used)) 2003 dev_err(&adapter->pdev->dev, "%d pending tx-compls\n", 2004 atomic_read(&txq->used)); 2005 2006 /* free posted tx for which compls will never arrive */ 2007 while (atomic_read(&txq->used)) { 2008 sent_skb = txo->sent_skb_list[txq->tail]; 2009 end_idx = txq->tail; 2010 num_wrbs = wrb_cnt_for_skb(adapter, sent_skb, 2011 &dummy_wrb); 2012 index_adv(&end_idx, num_wrbs - 1, txq->len); 2013 num_wrbs = be_tx_compl_process(adapter, txo, end_idx); 2014 atomic_sub(num_wrbs, &txq->used); 2015 } 2016 } 2017 } 2018 2019 static void be_evt_queues_destroy(struct be_adapter *adapter) 2020 { 2021 struct be_eq_obj *eqo; 2022 int i; 2023 2024 for_all_evt_queues(adapter, eqo, i) { 2025 if (eqo->q.created) { 2026 be_eq_clean(eqo); 2027 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ); 2028 napi_hash_del(&eqo->napi); 2029 netif_napi_del(&eqo->napi); 2030 } 2031 be_queue_free(adapter, &eqo->q); 2032 } 2033 } 2034 2035 static int be_evt_queues_create(struct be_adapter *adapter) 2036 { 2037 struct be_queue_info *eq; 2038 struct be_eq_obj *eqo; 2039 struct be_aic_obj *aic; 2040 int i, rc; 2041 2042 adapter->num_evt_qs = min_t(u16, num_irqs(adapter), 2043 adapter->cfg_num_qs); 2044 2045 for_all_evt_queues(adapter, eqo, i) { 2046 netif_napi_add(adapter->netdev, &eqo->napi, be_poll, 2047 BE_NAPI_WEIGHT); 2048 napi_hash_add(&eqo->napi); 2049 aic = &adapter->aic_obj[i]; 2050 eqo->adapter = adapter; 2051 eqo->tx_budget = BE_TX_BUDGET; 2052 eqo->idx = i; 2053 aic->max_eqd = BE_MAX_EQD; 2054 aic->enable = true; 2055 2056 eq = &eqo->q; 2057 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN, 2058 sizeof(struct be_eq_entry)); 2059 if (rc) 2060 return rc; 2061 2062 rc = be_cmd_eq_create(adapter, eqo); 2063 if (rc) 2064 return rc; 2065 } 2066 return 0; 2067 } 2068 2069 static void be_mcc_queues_destroy(struct be_adapter *adapter) 2070 { 2071 struct be_queue_info *q; 2072 2073 q = &adapter->mcc_obj.q; 2074 if (q->created) 2075 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ); 2076 be_queue_free(adapter, q); 2077 2078 q = &adapter->mcc_obj.cq; 2079 if (q->created) 2080 be_cmd_q_destroy(adapter, q, QTYPE_CQ); 2081 be_queue_free(adapter, q); 2082 } 2083 2084 /* Must be called only after TX qs are created as MCC shares TX EQ */ 2085 static int be_mcc_queues_create(struct be_adapter *adapter) 2086 { 2087 struct be_queue_info *q, *cq; 2088 2089 cq = &adapter->mcc_obj.cq; 2090 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN, 2091 sizeof(struct be_mcc_compl))) 2092 goto err; 2093 2094 /* Use the default EQ for MCC completions */ 2095 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0)) 2096 goto mcc_cq_free; 2097 2098 q = &adapter->mcc_obj.q; 2099 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb))) 2100 goto mcc_cq_destroy; 2101 2102 if (be_cmd_mccq_create(adapter, q, cq)) 2103 goto mcc_q_free; 2104 2105 return 0; 2106 2107 mcc_q_free: 2108 be_queue_free(adapter, q); 2109 mcc_cq_destroy: 2110 be_cmd_q_destroy(adapter, cq, QTYPE_CQ); 2111 mcc_cq_free: 2112 be_queue_free(adapter, cq); 2113 err: 2114 return -1; 2115 } 2116 2117 static void be_tx_queues_destroy(struct be_adapter *adapter) 2118 { 2119 struct be_queue_info *q; 2120 struct be_tx_obj *txo; 2121 u8 i; 2122 2123 for_all_tx_queues(adapter, txo, i) { 2124 q = &txo->q; 2125 if (q->created) 2126 be_cmd_q_destroy(adapter, q, QTYPE_TXQ); 2127 be_queue_free(adapter, q); 2128 2129 q = &txo->cq; 2130 if (q->created) 2131 be_cmd_q_destroy(adapter, q, QTYPE_CQ); 2132 be_queue_free(adapter, q); 2133 } 2134 } 2135 2136 static int be_tx_qs_create(struct be_adapter *adapter) 2137 { 2138 struct be_queue_info *cq, *eq; 2139 struct be_tx_obj *txo; 2140 int status, i; 2141 2142 adapter->num_tx_qs = min(adapter->num_evt_qs, be_max_txqs(adapter)); 2143 2144 for_all_tx_queues(adapter, txo, i) { 2145 cq = &txo->cq; 2146 status = be_queue_alloc(adapter, cq, TX_CQ_LEN, 2147 sizeof(struct be_eth_tx_compl)); 2148 if (status) 2149 return status; 2150 2151 u64_stats_init(&txo->stats.sync); 2152 u64_stats_init(&txo->stats.sync_compl); 2153 2154 /* If num_evt_qs is less than num_tx_qs, then more than 2155 * one txq share an eq 2156 */ 2157 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q; 2158 status = be_cmd_cq_create(adapter, cq, eq, false, 3); 2159 if (status) 2160 return status; 2161 2162 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN, 2163 sizeof(struct be_eth_wrb)); 2164 if (status) 2165 return status; 2166 2167 status = be_cmd_txq_create(adapter, txo); 2168 if (status) 2169 return status; 2170 } 2171 2172 dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n", 2173 adapter->num_tx_qs); 2174 return 0; 2175 } 2176 2177 static void be_rx_cqs_destroy(struct be_adapter *adapter) 2178 { 2179 struct be_queue_info *q; 2180 struct be_rx_obj *rxo; 2181 int i; 2182 2183 for_all_rx_queues(adapter, rxo, i) { 2184 q = &rxo->cq; 2185 if (q->created) 2186 be_cmd_q_destroy(adapter, q, QTYPE_CQ); 2187 be_queue_free(adapter, q); 2188 } 2189 } 2190 2191 static int be_rx_cqs_create(struct be_adapter *adapter) 2192 { 2193 struct be_queue_info *eq, *cq; 2194 struct be_rx_obj *rxo; 2195 int rc, i; 2196 2197 /* We can create as many RSS rings as there are EQs. */ 2198 adapter->num_rx_qs = adapter->num_evt_qs; 2199 2200 /* We'll use RSS only if atleast 2 RSS rings are supported. 2201 * When RSS is used, we'll need a default RXQ for non-IP traffic. 2202 */ 2203 if (adapter->num_rx_qs > 1) 2204 adapter->num_rx_qs++; 2205 2206 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE; 2207 for_all_rx_queues(adapter, rxo, i) { 2208 rxo->adapter = adapter; 2209 cq = &rxo->cq; 2210 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN, 2211 sizeof(struct be_eth_rx_compl)); 2212 if (rc) 2213 return rc; 2214 2215 u64_stats_init(&rxo->stats.sync); 2216 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q; 2217 rc = be_cmd_cq_create(adapter, cq, eq, false, 3); 2218 if (rc) 2219 return rc; 2220 } 2221 2222 dev_info(&adapter->pdev->dev, 2223 "created %d RSS queue(s) and 1 default RX queue\n", 2224 adapter->num_rx_qs - 1); 2225 return 0; 2226 } 2227 2228 static irqreturn_t be_intx(int irq, void *dev) 2229 { 2230 struct be_eq_obj *eqo = dev; 2231 struct be_adapter *adapter = eqo->adapter; 2232 int num_evts = 0; 2233 2234 /* IRQ is not expected when NAPI is scheduled as the EQ 2235 * will not be armed. 2236 * But, this can happen on Lancer INTx where it takes 2237 * a while to de-assert INTx or in BE2 where occasionaly 2238 * an interrupt may be raised even when EQ is unarmed. 2239 * If NAPI is already scheduled, then counting & notifying 2240 * events will orphan them. 2241 */ 2242 if (napi_schedule_prep(&eqo->napi)) { 2243 num_evts = events_get(eqo); 2244 __napi_schedule(&eqo->napi); 2245 if (num_evts) 2246 eqo->spurious_intr = 0; 2247 } 2248 be_eq_notify(adapter, eqo->q.id, false, true, num_evts); 2249 2250 /* Return IRQ_HANDLED only for the the first spurious intr 2251 * after a valid intr to stop the kernel from branding 2252 * this irq as a bad one! 2253 */ 2254 if (num_evts || eqo->spurious_intr++ == 0) 2255 return IRQ_HANDLED; 2256 else 2257 return IRQ_NONE; 2258 } 2259 2260 static irqreturn_t be_msix(int irq, void *dev) 2261 { 2262 struct be_eq_obj *eqo = dev; 2263 2264 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0); 2265 napi_schedule(&eqo->napi); 2266 return IRQ_HANDLED; 2267 } 2268 2269 static inline bool do_gro(struct be_rx_compl_info *rxcp) 2270 { 2271 return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false; 2272 } 2273 2274 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi, 2275 int budget, int polling) 2276 { 2277 struct be_adapter *adapter = rxo->adapter; 2278 struct be_queue_info *rx_cq = &rxo->cq; 2279 struct be_rx_compl_info *rxcp; 2280 u32 work_done; 2281 2282 for (work_done = 0; work_done < budget; work_done++) { 2283 rxcp = be_rx_compl_get(rxo); 2284 if (!rxcp) 2285 break; 2286 2287 /* Is it a flush compl that has no data */ 2288 if (unlikely(rxcp->num_rcvd == 0)) 2289 goto loop_continue; 2290 2291 /* Discard compl with partial DMA Lancer B0 */ 2292 if (unlikely(!rxcp->pkt_size)) { 2293 be_rx_compl_discard(rxo, rxcp); 2294 goto loop_continue; 2295 } 2296 2297 /* On BE drop pkts that arrive due to imperfect filtering in 2298 * promiscuous mode on some skews 2299 */ 2300 if (unlikely(rxcp->port != adapter->port_num && 2301 !lancer_chip(adapter))) { 2302 be_rx_compl_discard(rxo, rxcp); 2303 goto loop_continue; 2304 } 2305 2306 /* Don't do gro when we're busy_polling */ 2307 if (do_gro(rxcp) && polling != BUSY_POLLING) 2308 be_rx_compl_process_gro(rxo, napi, rxcp); 2309 else 2310 be_rx_compl_process(rxo, napi, rxcp); 2311 2312 loop_continue: 2313 be_rx_stats_update(rxo, rxcp); 2314 } 2315 2316 if (work_done) { 2317 be_cq_notify(adapter, rx_cq->id, true, work_done); 2318 2319 /* When an rx-obj gets into post_starved state, just 2320 * let be_worker do the posting. 2321 */ 2322 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM && 2323 !rxo->rx_post_starved) 2324 be_post_rx_frags(rxo, GFP_ATOMIC); 2325 } 2326 2327 return work_done; 2328 } 2329 2330 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo, 2331 int budget, int idx) 2332 { 2333 struct be_eth_tx_compl *txcp; 2334 int num_wrbs = 0, work_done; 2335 2336 for (work_done = 0; work_done < budget; work_done++) { 2337 txcp = be_tx_compl_get(&txo->cq); 2338 if (!txcp) 2339 break; 2340 num_wrbs += be_tx_compl_process(adapter, txo, 2341 AMAP_GET_BITS(struct amap_eth_tx_compl, 2342 wrb_index, txcp)); 2343 } 2344 2345 if (work_done) { 2346 be_cq_notify(adapter, txo->cq.id, true, work_done); 2347 atomic_sub(num_wrbs, &txo->q.used); 2348 2349 /* As Tx wrbs have been freed up, wake up netdev queue 2350 * if it was stopped due to lack of tx wrbs. */ 2351 if (__netif_subqueue_stopped(adapter->netdev, idx) && 2352 atomic_read(&txo->q.used) < txo->q.len / 2) { 2353 netif_wake_subqueue(adapter->netdev, idx); 2354 } 2355 2356 u64_stats_update_begin(&tx_stats(txo)->sync_compl); 2357 tx_stats(txo)->tx_compl += work_done; 2358 u64_stats_update_end(&tx_stats(txo)->sync_compl); 2359 } 2360 return (work_done < budget); /* Done */ 2361 } 2362 2363 int be_poll(struct napi_struct *napi, int budget) 2364 { 2365 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi); 2366 struct be_adapter *adapter = eqo->adapter; 2367 int max_work = 0, work, i, num_evts; 2368 struct be_rx_obj *rxo; 2369 bool tx_done; 2370 2371 num_evts = events_get(eqo); 2372 2373 /* Process all TXQs serviced by this EQ */ 2374 for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) { 2375 tx_done = be_process_tx(adapter, &adapter->tx_obj[i], 2376 eqo->tx_budget, i); 2377 if (!tx_done) 2378 max_work = budget; 2379 } 2380 2381 if (be_lock_napi(eqo)) { 2382 /* This loop will iterate twice for EQ0 in which 2383 * completions of the last RXQ (default one) are also processed 2384 * For other EQs the loop iterates only once 2385 */ 2386 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) { 2387 work = be_process_rx(rxo, napi, budget, NAPI_POLLING); 2388 max_work = max(work, max_work); 2389 } 2390 be_unlock_napi(eqo); 2391 } else { 2392 max_work = budget; 2393 } 2394 2395 if (is_mcc_eqo(eqo)) 2396 be_process_mcc(adapter); 2397 2398 if (max_work < budget) { 2399 napi_complete(napi); 2400 be_eq_notify(adapter, eqo->q.id, true, false, num_evts); 2401 } else { 2402 /* As we'll continue in polling mode, count and clear events */ 2403 be_eq_notify(adapter, eqo->q.id, false, false, num_evts); 2404 } 2405 return max_work; 2406 } 2407 2408 #ifdef CONFIG_NET_RX_BUSY_POLL 2409 static int be_busy_poll(struct napi_struct *napi) 2410 { 2411 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi); 2412 struct be_adapter *adapter = eqo->adapter; 2413 struct be_rx_obj *rxo; 2414 int i, work = 0; 2415 2416 if (!be_lock_busy_poll(eqo)) 2417 return LL_FLUSH_BUSY; 2418 2419 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) { 2420 work = be_process_rx(rxo, napi, 4, BUSY_POLLING); 2421 if (work) 2422 break; 2423 } 2424 2425 be_unlock_busy_poll(eqo); 2426 return work; 2427 } 2428 #endif 2429 2430 void be_detect_error(struct be_adapter *adapter) 2431 { 2432 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0; 2433 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0; 2434 u32 i; 2435 2436 if (be_hw_error(adapter)) 2437 return; 2438 2439 if (lancer_chip(adapter)) { 2440 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET); 2441 if (sliport_status & SLIPORT_STATUS_ERR_MASK) { 2442 sliport_err1 = ioread32(adapter->db + 2443 SLIPORT_ERROR1_OFFSET); 2444 sliport_err2 = ioread32(adapter->db + 2445 SLIPORT_ERROR2_OFFSET); 2446 } 2447 } else { 2448 pci_read_config_dword(adapter->pdev, 2449 PCICFG_UE_STATUS_LOW, &ue_lo); 2450 pci_read_config_dword(adapter->pdev, 2451 PCICFG_UE_STATUS_HIGH, &ue_hi); 2452 pci_read_config_dword(adapter->pdev, 2453 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask); 2454 pci_read_config_dword(adapter->pdev, 2455 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask); 2456 2457 ue_lo = (ue_lo & ~ue_lo_mask); 2458 ue_hi = (ue_hi & ~ue_hi_mask); 2459 } 2460 2461 /* On certain platforms BE hardware can indicate spurious UEs. 2462 * Allow the h/w to stop working completely in case of a real UE. 2463 * Hence not setting the hw_error for UE detection. 2464 */ 2465 if (sliport_status & SLIPORT_STATUS_ERR_MASK) { 2466 adapter->hw_error = true; 2467 /* Do not log error messages if its a FW reset */ 2468 if (sliport_err1 == SLIPORT_ERROR_FW_RESET1 && 2469 sliport_err2 == SLIPORT_ERROR_FW_RESET2) { 2470 dev_info(&adapter->pdev->dev, 2471 "Firmware update in progress\n"); 2472 return; 2473 } else { 2474 dev_err(&adapter->pdev->dev, 2475 "Error detected in the card\n"); 2476 } 2477 } 2478 2479 if (sliport_status & SLIPORT_STATUS_ERR_MASK) { 2480 dev_err(&adapter->pdev->dev, 2481 "ERR: sliport status 0x%x\n", sliport_status); 2482 dev_err(&adapter->pdev->dev, 2483 "ERR: sliport error1 0x%x\n", sliport_err1); 2484 dev_err(&adapter->pdev->dev, 2485 "ERR: sliport error2 0x%x\n", sliport_err2); 2486 } 2487 2488 if (ue_lo) { 2489 for (i = 0; ue_lo; ue_lo >>= 1, i++) { 2490 if (ue_lo & 1) 2491 dev_err(&adapter->pdev->dev, 2492 "UE: %s bit set\n", ue_status_low_desc[i]); 2493 } 2494 } 2495 2496 if (ue_hi) { 2497 for (i = 0; ue_hi; ue_hi >>= 1, i++) { 2498 if (ue_hi & 1) 2499 dev_err(&adapter->pdev->dev, 2500 "UE: %s bit set\n", ue_status_hi_desc[i]); 2501 } 2502 } 2503 2504 } 2505 2506 static void be_msix_disable(struct be_adapter *adapter) 2507 { 2508 if (msix_enabled(adapter)) { 2509 pci_disable_msix(adapter->pdev); 2510 adapter->num_msix_vec = 0; 2511 adapter->num_msix_roce_vec = 0; 2512 } 2513 } 2514 2515 static int be_msix_enable(struct be_adapter *adapter) 2516 { 2517 int i, status, num_vec; 2518 struct device *dev = &adapter->pdev->dev; 2519 2520 /* If RoCE is supported, program the max number of NIC vectors that 2521 * may be configured via set-channels, along with vectors needed for 2522 * RoCe. Else, just program the number we'll use initially. 2523 */ 2524 if (be_roce_supported(adapter)) 2525 num_vec = min_t(int, 2 * be_max_eqs(adapter), 2526 2 * num_online_cpus()); 2527 else 2528 num_vec = adapter->cfg_num_qs; 2529 2530 for (i = 0; i < num_vec; i++) 2531 adapter->msix_entries[i].entry = i; 2532 2533 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec); 2534 if (status == 0) { 2535 goto done; 2536 } else if (status >= MIN_MSIX_VECTORS) { 2537 num_vec = status; 2538 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, 2539 num_vec); 2540 if (!status) 2541 goto done; 2542 } 2543 2544 dev_warn(dev, "MSIx enable failed\n"); 2545 2546 /* INTx is not supported in VFs, so fail probe if enable_msix fails */ 2547 if (!be_physfn(adapter)) 2548 return status; 2549 return 0; 2550 done: 2551 if (be_roce_supported(adapter) && num_vec > MIN_MSIX_VECTORS) { 2552 adapter->num_msix_roce_vec = num_vec / 2; 2553 dev_info(dev, "enabled %d MSI-x vector(s) for RoCE\n", 2554 adapter->num_msix_roce_vec); 2555 } 2556 2557 adapter->num_msix_vec = num_vec - adapter->num_msix_roce_vec; 2558 2559 dev_info(dev, "enabled %d MSI-x vector(s) for NIC\n", 2560 adapter->num_msix_vec); 2561 return 0; 2562 } 2563 2564 static inline int be_msix_vec_get(struct be_adapter *adapter, 2565 struct be_eq_obj *eqo) 2566 { 2567 return adapter->msix_entries[eqo->msix_idx].vector; 2568 } 2569 2570 static int be_msix_register(struct be_adapter *adapter) 2571 { 2572 struct net_device *netdev = adapter->netdev; 2573 struct be_eq_obj *eqo; 2574 int status, i, vec; 2575 2576 for_all_evt_queues(adapter, eqo, i) { 2577 sprintf(eqo->desc, "%s-q%d", netdev->name, i); 2578 vec = be_msix_vec_get(adapter, eqo); 2579 status = request_irq(vec, be_msix, 0, eqo->desc, eqo); 2580 if (status) 2581 goto err_msix; 2582 } 2583 2584 return 0; 2585 err_msix: 2586 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--) 2587 free_irq(be_msix_vec_get(adapter, eqo), eqo); 2588 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n", 2589 status); 2590 be_msix_disable(adapter); 2591 return status; 2592 } 2593 2594 static int be_irq_register(struct be_adapter *adapter) 2595 { 2596 struct net_device *netdev = adapter->netdev; 2597 int status; 2598 2599 if (msix_enabled(adapter)) { 2600 status = be_msix_register(adapter); 2601 if (status == 0) 2602 goto done; 2603 /* INTx is not supported for VF */ 2604 if (!be_physfn(adapter)) 2605 return status; 2606 } 2607 2608 /* INTx: only the first EQ is used */ 2609 netdev->irq = adapter->pdev->irq; 2610 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name, 2611 &adapter->eq_obj[0]); 2612 if (status) { 2613 dev_err(&adapter->pdev->dev, 2614 "INTx request IRQ failed - err %d\n", status); 2615 return status; 2616 } 2617 done: 2618 adapter->isr_registered = true; 2619 return 0; 2620 } 2621 2622 static void be_irq_unregister(struct be_adapter *adapter) 2623 { 2624 struct net_device *netdev = adapter->netdev; 2625 struct be_eq_obj *eqo; 2626 int i; 2627 2628 if (!adapter->isr_registered) 2629 return; 2630 2631 /* INTx */ 2632 if (!msix_enabled(adapter)) { 2633 free_irq(netdev->irq, &adapter->eq_obj[0]); 2634 goto done; 2635 } 2636 2637 /* MSIx */ 2638 for_all_evt_queues(adapter, eqo, i) 2639 free_irq(be_msix_vec_get(adapter, eqo), eqo); 2640 2641 done: 2642 adapter->isr_registered = false; 2643 } 2644 2645 static void be_rx_qs_destroy(struct be_adapter *adapter) 2646 { 2647 struct be_queue_info *q; 2648 struct be_rx_obj *rxo; 2649 int i; 2650 2651 for_all_rx_queues(adapter, rxo, i) { 2652 q = &rxo->q; 2653 if (q->created) { 2654 be_cmd_rxq_destroy(adapter, q); 2655 be_rx_cq_clean(rxo); 2656 } 2657 be_queue_free(adapter, q); 2658 } 2659 } 2660 2661 static int be_close(struct net_device *netdev) 2662 { 2663 struct be_adapter *adapter = netdev_priv(netdev); 2664 struct be_eq_obj *eqo; 2665 int i; 2666 2667 be_roce_dev_close(adapter); 2668 2669 if (adapter->flags & BE_FLAGS_NAPI_ENABLED) { 2670 for_all_evt_queues(adapter, eqo, i) { 2671 napi_disable(&eqo->napi); 2672 be_disable_busy_poll(eqo); 2673 } 2674 adapter->flags &= ~BE_FLAGS_NAPI_ENABLED; 2675 } 2676 2677 be_async_mcc_disable(adapter); 2678 2679 /* Wait for all pending tx completions to arrive so that 2680 * all tx skbs are freed. 2681 */ 2682 netif_tx_disable(netdev); 2683 be_tx_compl_clean(adapter); 2684 2685 be_rx_qs_destroy(adapter); 2686 2687 for (i = 1; i < (adapter->uc_macs + 1); i++) 2688 be_cmd_pmac_del(adapter, adapter->if_handle, 2689 adapter->pmac_id[i], 0); 2690 adapter->uc_macs = 0; 2691 2692 for_all_evt_queues(adapter, eqo, i) { 2693 if (msix_enabled(adapter)) 2694 synchronize_irq(be_msix_vec_get(adapter, eqo)); 2695 else 2696 synchronize_irq(netdev->irq); 2697 be_eq_clean(eqo); 2698 } 2699 2700 be_irq_unregister(adapter); 2701 2702 return 0; 2703 } 2704 2705 static int be_rx_qs_create(struct be_adapter *adapter) 2706 { 2707 struct be_rx_obj *rxo; 2708 int rc, i, j; 2709 u8 rsstable[128]; 2710 2711 for_all_rx_queues(adapter, rxo, i) { 2712 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN, 2713 sizeof(struct be_eth_rx_d)); 2714 if (rc) 2715 return rc; 2716 } 2717 2718 /* The FW would like the default RXQ to be created first */ 2719 rxo = default_rxo(adapter); 2720 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size, 2721 adapter->if_handle, false, &rxo->rss_id); 2722 if (rc) 2723 return rc; 2724 2725 for_all_rss_queues(adapter, rxo, i) { 2726 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, 2727 rx_frag_size, adapter->if_handle, 2728 true, &rxo->rss_id); 2729 if (rc) 2730 return rc; 2731 } 2732 2733 if (be_multi_rxq(adapter)) { 2734 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) { 2735 for_all_rss_queues(adapter, rxo, i) { 2736 if ((j + i) >= 128) 2737 break; 2738 rsstable[j + i] = rxo->rss_id; 2739 } 2740 } 2741 adapter->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 | 2742 RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6; 2743 2744 if (!BEx_chip(adapter)) 2745 adapter->rss_flags |= RSS_ENABLE_UDP_IPV4 | 2746 RSS_ENABLE_UDP_IPV6; 2747 } else { 2748 /* Disable RSS, if only default RX Q is created */ 2749 adapter->rss_flags = RSS_ENABLE_NONE; 2750 } 2751 2752 rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags, 2753 128); 2754 if (rc) { 2755 adapter->rss_flags = RSS_ENABLE_NONE; 2756 return rc; 2757 } 2758 2759 /* First time posting */ 2760 for_all_rx_queues(adapter, rxo, i) 2761 be_post_rx_frags(rxo, GFP_KERNEL); 2762 return 0; 2763 } 2764 2765 static int be_open(struct net_device *netdev) 2766 { 2767 struct be_adapter *adapter = netdev_priv(netdev); 2768 struct be_eq_obj *eqo; 2769 struct be_rx_obj *rxo; 2770 struct be_tx_obj *txo; 2771 u8 link_status; 2772 int status, i; 2773 2774 status = be_rx_qs_create(adapter); 2775 if (status) 2776 goto err; 2777 2778 status = be_irq_register(adapter); 2779 if (status) 2780 goto err; 2781 2782 for_all_rx_queues(adapter, rxo, i) 2783 be_cq_notify(adapter, rxo->cq.id, true, 0); 2784 2785 for_all_tx_queues(adapter, txo, i) 2786 be_cq_notify(adapter, txo->cq.id, true, 0); 2787 2788 be_async_mcc_enable(adapter); 2789 2790 for_all_evt_queues(adapter, eqo, i) { 2791 napi_enable(&eqo->napi); 2792 be_enable_busy_poll(eqo); 2793 be_eq_notify(adapter, eqo->q.id, true, false, 0); 2794 } 2795 adapter->flags |= BE_FLAGS_NAPI_ENABLED; 2796 2797 status = be_cmd_link_status_query(adapter, NULL, &link_status, 0); 2798 if (!status) 2799 be_link_status_update(adapter, link_status); 2800 2801 netif_tx_start_all_queues(netdev); 2802 be_roce_dev_open(adapter); 2803 return 0; 2804 err: 2805 be_close(adapter->netdev); 2806 return -EIO; 2807 } 2808 2809 static int be_setup_wol(struct be_adapter *adapter, bool enable) 2810 { 2811 struct be_dma_mem cmd; 2812 int status = 0; 2813 u8 mac[ETH_ALEN]; 2814 2815 memset(mac, 0, ETH_ALEN); 2816 2817 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config); 2818 cmd.va = dma_zalloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma, 2819 GFP_KERNEL); 2820 if (cmd.va == NULL) 2821 return -1; 2822 2823 if (enable) { 2824 status = pci_write_config_dword(adapter->pdev, 2825 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK); 2826 if (status) { 2827 dev_err(&adapter->pdev->dev, 2828 "Could not enable Wake-on-lan\n"); 2829 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, 2830 cmd.dma); 2831 return status; 2832 } 2833 status = be_cmd_enable_magic_wol(adapter, 2834 adapter->netdev->dev_addr, &cmd); 2835 pci_enable_wake(adapter->pdev, PCI_D3hot, 1); 2836 pci_enable_wake(adapter->pdev, PCI_D3cold, 1); 2837 } else { 2838 status = be_cmd_enable_magic_wol(adapter, mac, &cmd); 2839 pci_enable_wake(adapter->pdev, PCI_D3hot, 0); 2840 pci_enable_wake(adapter->pdev, PCI_D3cold, 0); 2841 } 2842 2843 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma); 2844 return status; 2845 } 2846 2847 /* 2848 * Generate a seed MAC address from the PF MAC Address using jhash. 2849 * MAC Address for VFs are assigned incrementally starting from the seed. 2850 * These addresses are programmed in the ASIC by the PF and the VF driver 2851 * queries for the MAC address during its probe. 2852 */ 2853 static int be_vf_eth_addr_config(struct be_adapter *adapter) 2854 { 2855 u32 vf; 2856 int status = 0; 2857 u8 mac[ETH_ALEN]; 2858 struct be_vf_cfg *vf_cfg; 2859 2860 be_vf_eth_addr_generate(adapter, mac); 2861 2862 for_all_vfs(adapter, vf_cfg, vf) { 2863 if (BEx_chip(adapter)) 2864 status = be_cmd_pmac_add(adapter, mac, 2865 vf_cfg->if_handle, 2866 &vf_cfg->pmac_id, vf + 1); 2867 else 2868 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle, 2869 vf + 1); 2870 2871 if (status) 2872 dev_err(&adapter->pdev->dev, 2873 "Mac address assignment failed for VF %d\n", vf); 2874 else 2875 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN); 2876 2877 mac[5] += 1; 2878 } 2879 return status; 2880 } 2881 2882 static int be_vfs_mac_query(struct be_adapter *adapter) 2883 { 2884 int status, vf; 2885 u8 mac[ETH_ALEN]; 2886 struct be_vf_cfg *vf_cfg; 2887 bool active = false; 2888 2889 for_all_vfs(adapter, vf_cfg, vf) { 2890 be_cmd_get_mac_from_list(adapter, mac, &active, 2891 &vf_cfg->pmac_id, 0); 2892 2893 status = be_cmd_mac_addr_query(adapter, mac, false, 2894 vf_cfg->if_handle, 0); 2895 if (status) 2896 return status; 2897 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN); 2898 } 2899 return 0; 2900 } 2901 2902 static void be_vf_clear(struct be_adapter *adapter) 2903 { 2904 struct be_vf_cfg *vf_cfg; 2905 u32 vf; 2906 2907 if (pci_vfs_assigned(adapter->pdev)) { 2908 dev_warn(&adapter->pdev->dev, 2909 "VFs are assigned to VMs: not disabling VFs\n"); 2910 goto done; 2911 } 2912 2913 pci_disable_sriov(adapter->pdev); 2914 2915 for_all_vfs(adapter, vf_cfg, vf) { 2916 if (BEx_chip(adapter)) 2917 be_cmd_pmac_del(adapter, vf_cfg->if_handle, 2918 vf_cfg->pmac_id, vf + 1); 2919 else 2920 be_cmd_set_mac(adapter, NULL, vf_cfg->if_handle, 2921 vf + 1); 2922 2923 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1); 2924 } 2925 done: 2926 kfree(adapter->vf_cfg); 2927 adapter->num_vfs = 0; 2928 } 2929 2930 static void be_clear_queues(struct be_adapter *adapter) 2931 { 2932 be_mcc_queues_destroy(adapter); 2933 be_rx_cqs_destroy(adapter); 2934 be_tx_queues_destroy(adapter); 2935 be_evt_queues_destroy(adapter); 2936 } 2937 2938 static void be_cancel_worker(struct be_adapter *adapter) 2939 { 2940 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) { 2941 cancel_delayed_work_sync(&adapter->work); 2942 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED; 2943 } 2944 } 2945 2946 static void be_mac_clear(struct be_adapter *adapter) 2947 { 2948 int i; 2949 2950 if (adapter->pmac_id) { 2951 for (i = 0; i < (adapter->uc_macs + 1); i++) 2952 be_cmd_pmac_del(adapter, adapter->if_handle, 2953 adapter->pmac_id[i], 0); 2954 adapter->uc_macs = 0; 2955 2956 kfree(adapter->pmac_id); 2957 adapter->pmac_id = NULL; 2958 } 2959 } 2960 2961 static int be_clear(struct be_adapter *adapter) 2962 { 2963 be_cancel_worker(adapter); 2964 2965 if (sriov_enabled(adapter)) 2966 be_vf_clear(adapter); 2967 2968 /* delete the primary mac along with the uc-mac list */ 2969 be_mac_clear(adapter); 2970 2971 be_cmd_if_destroy(adapter, adapter->if_handle, 0); 2972 2973 be_clear_queues(adapter); 2974 2975 be_msix_disable(adapter); 2976 return 0; 2977 } 2978 2979 static int be_vfs_if_create(struct be_adapter *adapter) 2980 { 2981 struct be_resources res = {0}; 2982 struct be_vf_cfg *vf_cfg; 2983 u32 cap_flags, en_flags, vf; 2984 int status = 0; 2985 2986 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST | 2987 BE_IF_FLAGS_MULTICAST; 2988 2989 for_all_vfs(adapter, vf_cfg, vf) { 2990 if (!BE3_chip(adapter)) { 2991 status = be_cmd_get_profile_config(adapter, &res, 2992 vf + 1); 2993 if (!status) 2994 cap_flags = res.if_cap_flags; 2995 } 2996 2997 /* If a FW profile exists, then cap_flags are updated */ 2998 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED | 2999 BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST); 3000 status = be_cmd_if_create(adapter, cap_flags, en_flags, 3001 &vf_cfg->if_handle, vf + 1); 3002 if (status) 3003 goto err; 3004 } 3005 err: 3006 return status; 3007 } 3008 3009 static int be_vf_setup_init(struct be_adapter *adapter) 3010 { 3011 struct be_vf_cfg *vf_cfg; 3012 int vf; 3013 3014 adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg), 3015 GFP_KERNEL); 3016 if (!adapter->vf_cfg) 3017 return -ENOMEM; 3018 3019 for_all_vfs(adapter, vf_cfg, vf) { 3020 vf_cfg->if_handle = -1; 3021 vf_cfg->pmac_id = -1; 3022 } 3023 return 0; 3024 } 3025 3026 static int be_vf_setup(struct be_adapter *adapter) 3027 { 3028 struct be_vf_cfg *vf_cfg; 3029 u16 def_vlan, lnk_speed; 3030 int status, old_vfs, vf; 3031 struct device *dev = &adapter->pdev->dev; 3032 u32 privileges; 3033 3034 old_vfs = pci_num_vf(adapter->pdev); 3035 if (old_vfs) { 3036 dev_info(dev, "%d VFs are already enabled\n", old_vfs); 3037 if (old_vfs != num_vfs) 3038 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs); 3039 adapter->num_vfs = old_vfs; 3040 } else { 3041 if (num_vfs > be_max_vfs(adapter)) 3042 dev_info(dev, "Device supports %d VFs and not %d\n", 3043 be_max_vfs(adapter), num_vfs); 3044 adapter->num_vfs = min_t(u16, num_vfs, be_max_vfs(adapter)); 3045 if (!adapter->num_vfs) 3046 return 0; 3047 } 3048 3049 status = be_vf_setup_init(adapter); 3050 if (status) 3051 goto err; 3052 3053 if (old_vfs) { 3054 for_all_vfs(adapter, vf_cfg, vf) { 3055 status = be_cmd_get_if_id(adapter, vf_cfg, vf); 3056 if (status) 3057 goto err; 3058 } 3059 } else { 3060 status = be_vfs_if_create(adapter); 3061 if (status) 3062 goto err; 3063 } 3064 3065 if (old_vfs) { 3066 status = be_vfs_mac_query(adapter); 3067 if (status) 3068 goto err; 3069 } else { 3070 status = be_vf_eth_addr_config(adapter); 3071 if (status) 3072 goto err; 3073 } 3074 3075 for_all_vfs(adapter, vf_cfg, vf) { 3076 /* Allow VFs to programs MAC/VLAN filters */ 3077 status = be_cmd_get_fn_privileges(adapter, &privileges, vf + 1); 3078 if (!status && !(privileges & BE_PRIV_FILTMGMT)) { 3079 status = be_cmd_set_fn_privileges(adapter, 3080 privileges | 3081 BE_PRIV_FILTMGMT, 3082 vf + 1); 3083 if (!status) 3084 dev_info(dev, "VF%d has FILTMGMT privilege\n", 3085 vf); 3086 } 3087 3088 /* BE3 FW, by default, caps VF TX-rate to 100mbps. 3089 * Allow full available bandwidth 3090 */ 3091 if (BE3_chip(adapter) && !old_vfs) 3092 be_cmd_set_qos(adapter, 1000, vf+1); 3093 3094 status = be_cmd_link_status_query(adapter, &lnk_speed, 3095 NULL, vf + 1); 3096 if (!status) 3097 vf_cfg->tx_rate = lnk_speed; 3098 3099 status = be_cmd_get_hsw_config(adapter, &def_vlan, 3100 vf + 1, vf_cfg->if_handle, NULL); 3101 if (status) 3102 goto err; 3103 vf_cfg->def_vid = def_vlan; 3104 3105 if (!old_vfs) 3106 be_cmd_enable_vf(adapter, vf + 1); 3107 } 3108 3109 if (!old_vfs) { 3110 status = pci_enable_sriov(adapter->pdev, adapter->num_vfs); 3111 if (status) { 3112 dev_err(dev, "SRIOV enable failed\n"); 3113 adapter->num_vfs = 0; 3114 goto err; 3115 } 3116 } 3117 return 0; 3118 err: 3119 dev_err(dev, "VF setup failed\n"); 3120 be_vf_clear(adapter); 3121 return status; 3122 } 3123 3124 /* On BE2/BE3 FW does not suggest the supported limits */ 3125 static void BEx_get_resources(struct be_adapter *adapter, 3126 struct be_resources *res) 3127 { 3128 struct pci_dev *pdev = adapter->pdev; 3129 bool use_sriov = false; 3130 int max_vfs; 3131 3132 max_vfs = pci_sriov_get_totalvfs(pdev); 3133 3134 if (BE3_chip(adapter) && sriov_want(adapter)) { 3135 res->max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0; 3136 use_sriov = res->max_vfs; 3137 } 3138 3139 if (be_physfn(adapter)) 3140 res->max_uc_mac = BE_UC_PMAC_COUNT; 3141 else 3142 res->max_uc_mac = BE_VF_UC_PMAC_COUNT; 3143 3144 if (adapter->function_mode & FLEX10_MODE) 3145 res->max_vlans = BE_NUM_VLANS_SUPPORTED/8; 3146 else if (adapter->function_mode & UMC_ENABLED) 3147 res->max_vlans = BE_UMC_NUM_VLANS_SUPPORTED; 3148 else 3149 res->max_vlans = BE_NUM_VLANS_SUPPORTED; 3150 res->max_mcast_mac = BE_MAX_MC; 3151 3152 /* For BE3 1Gb ports, F/W does not properly support multiple TXQs */ 3153 if (BE2_chip(adapter) || use_sriov || be_is_mc(adapter) || 3154 !be_physfn(adapter) || (adapter->port_num > 1)) 3155 res->max_tx_qs = 1; 3156 else 3157 res->max_tx_qs = BE3_MAX_TX_QS; 3158 3159 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) && 3160 !use_sriov && be_physfn(adapter)) 3161 res->max_rss_qs = (adapter->be3_native) ? 3162 BE3_MAX_RSS_QS : BE2_MAX_RSS_QS; 3163 res->max_rx_qs = res->max_rss_qs + 1; 3164 3165 if (be_physfn(adapter)) 3166 res->max_evt_qs = (max_vfs > 0) ? 3167 BE3_SRIOV_MAX_EVT_QS : BE3_MAX_EVT_QS; 3168 else 3169 res->max_evt_qs = 1; 3170 3171 res->if_cap_flags = BE_IF_CAP_FLAGS_WANT; 3172 if (!(adapter->function_caps & BE_FUNCTION_CAPS_RSS)) 3173 res->if_cap_flags &= ~BE_IF_FLAGS_RSS; 3174 } 3175 3176 static void be_setup_init(struct be_adapter *adapter) 3177 { 3178 adapter->vlan_prio_bmap = 0xff; 3179 adapter->phy.link_speed = -1; 3180 adapter->if_handle = -1; 3181 adapter->be3_native = false; 3182 adapter->promiscuous = false; 3183 if (be_physfn(adapter)) 3184 adapter->cmd_privileges = MAX_PRIVILEGES; 3185 else 3186 adapter->cmd_privileges = MIN_PRIVILEGES; 3187 } 3188 3189 static int be_get_resources(struct be_adapter *adapter) 3190 { 3191 struct device *dev = &adapter->pdev->dev; 3192 struct be_resources res = {0}; 3193 int status; 3194 3195 if (BEx_chip(adapter)) { 3196 BEx_get_resources(adapter, &res); 3197 adapter->res = res; 3198 } 3199 3200 /* For Lancer, SH etc read per-function resource limits from FW. 3201 * GET_FUNC_CONFIG returns per function guaranteed limits. 3202 * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits 3203 */ 3204 if (!BEx_chip(adapter)) { 3205 status = be_cmd_get_func_config(adapter, &res); 3206 if (status) 3207 return status; 3208 3209 /* If RoCE may be enabled stash away half the EQs for RoCE */ 3210 if (be_roce_supported(adapter)) 3211 res.max_evt_qs /= 2; 3212 adapter->res = res; 3213 3214 if (be_physfn(adapter)) { 3215 status = be_cmd_get_profile_config(adapter, &res, 0); 3216 if (status) 3217 return status; 3218 adapter->res.max_vfs = res.max_vfs; 3219 } 3220 3221 dev_info(dev, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n", 3222 be_max_txqs(adapter), be_max_rxqs(adapter), 3223 be_max_rss(adapter), be_max_eqs(adapter), 3224 be_max_vfs(adapter)); 3225 dev_info(dev, "Max: uc-macs %d, mc-macs %d, vlans %d\n", 3226 be_max_uc(adapter), be_max_mc(adapter), 3227 be_max_vlans(adapter)); 3228 } 3229 3230 return 0; 3231 } 3232 3233 /* Routine to query per function resource limits */ 3234 static int be_get_config(struct be_adapter *adapter) 3235 { 3236 int status; 3237 3238 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num, 3239 &adapter->function_mode, 3240 &adapter->function_caps, 3241 &adapter->asic_rev); 3242 if (status) 3243 return status; 3244 3245 status = be_get_resources(adapter); 3246 if (status) 3247 return status; 3248 3249 /* primary mac needs 1 pmac entry */ 3250 adapter->pmac_id = kcalloc(be_max_uc(adapter) + 1, sizeof(u32), 3251 GFP_KERNEL); 3252 if (!adapter->pmac_id) 3253 return -ENOMEM; 3254 3255 /* Sanitize cfg_num_qs based on HW and platform limits */ 3256 adapter->cfg_num_qs = min(adapter->cfg_num_qs, be_max_qs(adapter)); 3257 3258 return 0; 3259 } 3260 3261 static int be_mac_setup(struct be_adapter *adapter) 3262 { 3263 u8 mac[ETH_ALEN]; 3264 int status; 3265 3266 if (is_zero_ether_addr(adapter->netdev->dev_addr)) { 3267 status = be_cmd_get_perm_mac(adapter, mac); 3268 if (status) 3269 return status; 3270 3271 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN); 3272 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN); 3273 } else { 3274 /* Maybe the HW was reset; dev_addr must be re-programmed */ 3275 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN); 3276 } 3277 3278 /* For BE3-R VFs, the PF programs the initial MAC address */ 3279 if (!(BEx_chip(adapter) && be_virtfn(adapter))) 3280 be_cmd_pmac_add(adapter, mac, adapter->if_handle, 3281 &adapter->pmac_id[0], 0); 3282 return 0; 3283 } 3284 3285 static void be_schedule_worker(struct be_adapter *adapter) 3286 { 3287 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000)); 3288 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED; 3289 } 3290 3291 static int be_setup_queues(struct be_adapter *adapter) 3292 { 3293 struct net_device *netdev = adapter->netdev; 3294 int status; 3295 3296 status = be_evt_queues_create(adapter); 3297 if (status) 3298 goto err; 3299 3300 status = be_tx_qs_create(adapter); 3301 if (status) 3302 goto err; 3303 3304 status = be_rx_cqs_create(adapter); 3305 if (status) 3306 goto err; 3307 3308 status = be_mcc_queues_create(adapter); 3309 if (status) 3310 goto err; 3311 3312 status = netif_set_real_num_rx_queues(netdev, adapter->num_rx_qs); 3313 if (status) 3314 goto err; 3315 3316 status = netif_set_real_num_tx_queues(netdev, adapter->num_tx_qs); 3317 if (status) 3318 goto err; 3319 3320 return 0; 3321 err: 3322 dev_err(&adapter->pdev->dev, "queue_setup failed\n"); 3323 return status; 3324 } 3325 3326 int be_update_queues(struct be_adapter *adapter) 3327 { 3328 struct net_device *netdev = adapter->netdev; 3329 int status; 3330 3331 if (netif_running(netdev)) 3332 be_close(netdev); 3333 3334 be_cancel_worker(adapter); 3335 3336 /* If any vectors have been shared with RoCE we cannot re-program 3337 * the MSIx table. 3338 */ 3339 if (!adapter->num_msix_roce_vec) 3340 be_msix_disable(adapter); 3341 3342 be_clear_queues(adapter); 3343 3344 if (!msix_enabled(adapter)) { 3345 status = be_msix_enable(adapter); 3346 if (status) 3347 return status; 3348 } 3349 3350 status = be_setup_queues(adapter); 3351 if (status) 3352 return status; 3353 3354 be_schedule_worker(adapter); 3355 3356 if (netif_running(netdev)) 3357 status = be_open(netdev); 3358 3359 return status; 3360 } 3361 3362 static int be_setup(struct be_adapter *adapter) 3363 { 3364 struct device *dev = &adapter->pdev->dev; 3365 u32 tx_fc, rx_fc, en_flags; 3366 int status; 3367 3368 be_setup_init(adapter); 3369 3370 if (!lancer_chip(adapter)) 3371 be_cmd_req_native_mode(adapter); 3372 3373 status = be_get_config(adapter); 3374 if (status) 3375 goto err; 3376 3377 status = be_msix_enable(adapter); 3378 if (status) 3379 goto err; 3380 3381 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST | 3382 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS; 3383 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS) 3384 en_flags |= BE_IF_FLAGS_RSS; 3385 en_flags = en_flags & be_if_cap_flags(adapter); 3386 status = be_cmd_if_create(adapter, be_if_cap_flags(adapter), en_flags, 3387 &adapter->if_handle, 0); 3388 if (status) 3389 goto err; 3390 3391 /* Updating real_num_tx/rx_queues() requires rtnl_lock() */ 3392 rtnl_lock(); 3393 status = be_setup_queues(adapter); 3394 rtnl_unlock(); 3395 if (status) 3396 goto err; 3397 3398 be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0); 3399 /* In UMC mode FW does not return right privileges. 3400 * Override with correct privilege equivalent to PF. 3401 */ 3402 if (be_is_mc(adapter)) 3403 adapter->cmd_privileges = MAX_PRIVILEGES; 3404 3405 status = be_mac_setup(adapter); 3406 if (status) 3407 goto err; 3408 3409 be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash); 3410 3411 if (BE2_chip(adapter) && fw_major_num(adapter->fw_ver) < 4) { 3412 dev_err(dev, "Firmware on card is old(%s), IRQs may not work.", 3413 adapter->fw_ver); 3414 dev_err(dev, "Please upgrade firmware to version >= 4.0\n"); 3415 } 3416 3417 if (adapter->vlans_added) 3418 be_vid_config(adapter); 3419 3420 be_set_rx_mode(adapter->netdev); 3421 3422 be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc); 3423 3424 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc) 3425 be_cmd_set_flow_control(adapter, adapter->tx_fc, 3426 adapter->rx_fc); 3427 3428 if (sriov_want(adapter)) { 3429 if (be_max_vfs(adapter)) 3430 be_vf_setup(adapter); 3431 else 3432 dev_warn(dev, "device doesn't support SRIOV\n"); 3433 } 3434 3435 status = be_cmd_get_phy_info(adapter); 3436 if (!status && be_pause_supported(adapter)) 3437 adapter->phy.fc_autoneg = 1; 3438 3439 be_schedule_worker(adapter); 3440 return 0; 3441 err: 3442 be_clear(adapter); 3443 return status; 3444 } 3445 3446 #ifdef CONFIG_NET_POLL_CONTROLLER 3447 static void be_netpoll(struct net_device *netdev) 3448 { 3449 struct be_adapter *adapter = netdev_priv(netdev); 3450 struct be_eq_obj *eqo; 3451 int i; 3452 3453 for_all_evt_queues(adapter, eqo, i) { 3454 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0); 3455 napi_schedule(&eqo->napi); 3456 } 3457 3458 return; 3459 } 3460 #endif 3461 3462 #define FW_FILE_HDR_SIGN "ServerEngines Corp. " 3463 static char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "}; 3464 3465 static bool be_flash_redboot(struct be_adapter *adapter, 3466 const u8 *p, u32 img_start, int image_size, 3467 int hdr_size) 3468 { 3469 u32 crc_offset; 3470 u8 flashed_crc[4]; 3471 int status; 3472 3473 crc_offset = hdr_size + img_start + image_size - 4; 3474 3475 p += crc_offset; 3476 3477 status = be_cmd_get_flash_crc(adapter, flashed_crc, 3478 (image_size - 4)); 3479 if (status) { 3480 dev_err(&adapter->pdev->dev, 3481 "could not get crc from flash, not flashing redboot\n"); 3482 return false; 3483 } 3484 3485 /*update redboot only if crc does not match*/ 3486 if (!memcmp(flashed_crc, p, 4)) 3487 return false; 3488 else 3489 return true; 3490 } 3491 3492 static bool phy_flashing_required(struct be_adapter *adapter) 3493 { 3494 return (adapter->phy.phy_type == TN_8022 && 3495 adapter->phy.interface_type == PHY_TYPE_BASET_10GB); 3496 } 3497 3498 static bool is_comp_in_ufi(struct be_adapter *adapter, 3499 struct flash_section_info *fsec, int type) 3500 { 3501 int i = 0, img_type = 0; 3502 struct flash_section_info_g2 *fsec_g2 = NULL; 3503 3504 if (BE2_chip(adapter)) 3505 fsec_g2 = (struct flash_section_info_g2 *)fsec; 3506 3507 for (i = 0; i < MAX_FLASH_COMP; i++) { 3508 if (fsec_g2) 3509 img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type); 3510 else 3511 img_type = le32_to_cpu(fsec->fsec_entry[i].type); 3512 3513 if (img_type == type) 3514 return true; 3515 } 3516 return false; 3517 3518 } 3519 3520 static struct flash_section_info *get_fsec_info(struct be_adapter *adapter, 3521 int header_size, 3522 const struct firmware *fw) 3523 { 3524 struct flash_section_info *fsec = NULL; 3525 const u8 *p = fw->data; 3526 3527 p += header_size; 3528 while (p < (fw->data + fw->size)) { 3529 fsec = (struct flash_section_info *)p; 3530 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie))) 3531 return fsec; 3532 p += 32; 3533 } 3534 return NULL; 3535 } 3536 3537 static int be_flash(struct be_adapter *adapter, const u8 *img, 3538 struct be_dma_mem *flash_cmd, int optype, int img_size) 3539 { 3540 u32 total_bytes = 0, flash_op, num_bytes = 0; 3541 int status = 0; 3542 struct be_cmd_write_flashrom *req = flash_cmd->va; 3543 3544 total_bytes = img_size; 3545 while (total_bytes) { 3546 num_bytes = min_t(u32, 32*1024, total_bytes); 3547 3548 total_bytes -= num_bytes; 3549 3550 if (!total_bytes) { 3551 if (optype == OPTYPE_PHY_FW) 3552 flash_op = FLASHROM_OPER_PHY_FLASH; 3553 else 3554 flash_op = FLASHROM_OPER_FLASH; 3555 } else { 3556 if (optype == OPTYPE_PHY_FW) 3557 flash_op = FLASHROM_OPER_PHY_SAVE; 3558 else 3559 flash_op = FLASHROM_OPER_SAVE; 3560 } 3561 3562 memcpy(req->data_buf, img, num_bytes); 3563 img += num_bytes; 3564 status = be_cmd_write_flashrom(adapter, flash_cmd, optype, 3565 flash_op, num_bytes); 3566 if (status) { 3567 if (status == ILLEGAL_IOCTL_REQ && 3568 optype == OPTYPE_PHY_FW) 3569 break; 3570 dev_err(&adapter->pdev->dev, 3571 "cmd to write to flash rom failed.\n"); 3572 return status; 3573 } 3574 } 3575 return 0; 3576 } 3577 3578 /* For BE2, BE3 and BE3-R */ 3579 static int be_flash_BEx(struct be_adapter *adapter, 3580 const struct firmware *fw, 3581 struct be_dma_mem *flash_cmd, 3582 int num_of_images) 3583 3584 { 3585 int status = 0, i, filehdr_size = 0; 3586 int img_hdrs_size = (num_of_images * sizeof(struct image_hdr)); 3587 const u8 *p = fw->data; 3588 const struct flash_comp *pflashcomp; 3589 int num_comp, redboot; 3590 struct flash_section_info *fsec = NULL; 3591 3592 struct flash_comp gen3_flash_types[] = { 3593 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE, 3594 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI}, 3595 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT, 3596 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE}, 3597 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS, 3598 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI}, 3599 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS, 3600 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE}, 3601 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS, 3602 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE}, 3603 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP, 3604 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI}, 3605 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE, 3606 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE}, 3607 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP, 3608 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE}, 3609 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW, 3610 FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI}, 3611 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW, 3612 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY} 3613 }; 3614 3615 struct flash_comp gen2_flash_types[] = { 3616 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE, 3617 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI}, 3618 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT, 3619 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE}, 3620 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS, 3621 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI}, 3622 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS, 3623 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE}, 3624 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS, 3625 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE}, 3626 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP, 3627 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI}, 3628 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE, 3629 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE}, 3630 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP, 3631 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE} 3632 }; 3633 3634 if (BE3_chip(adapter)) { 3635 pflashcomp = gen3_flash_types; 3636 filehdr_size = sizeof(struct flash_file_hdr_g3); 3637 num_comp = ARRAY_SIZE(gen3_flash_types); 3638 } else { 3639 pflashcomp = gen2_flash_types; 3640 filehdr_size = sizeof(struct flash_file_hdr_g2); 3641 num_comp = ARRAY_SIZE(gen2_flash_types); 3642 } 3643 3644 /* Get flash section info*/ 3645 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw); 3646 if (!fsec) { 3647 dev_err(&adapter->pdev->dev, 3648 "Invalid Cookie. UFI corrupted ?\n"); 3649 return -1; 3650 } 3651 for (i = 0; i < num_comp; i++) { 3652 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type)) 3653 continue; 3654 3655 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) && 3656 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0) 3657 continue; 3658 3659 if (pflashcomp[i].optype == OPTYPE_PHY_FW && 3660 !phy_flashing_required(adapter)) 3661 continue; 3662 3663 if (pflashcomp[i].optype == OPTYPE_REDBOOT) { 3664 redboot = be_flash_redboot(adapter, fw->data, 3665 pflashcomp[i].offset, pflashcomp[i].size, 3666 filehdr_size + img_hdrs_size); 3667 if (!redboot) 3668 continue; 3669 } 3670 3671 p = fw->data; 3672 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size; 3673 if (p + pflashcomp[i].size > fw->data + fw->size) 3674 return -1; 3675 3676 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype, 3677 pflashcomp[i].size); 3678 if (status) { 3679 dev_err(&adapter->pdev->dev, 3680 "Flashing section type %d failed.\n", 3681 pflashcomp[i].img_type); 3682 return status; 3683 } 3684 } 3685 return 0; 3686 } 3687 3688 static int be_flash_skyhawk(struct be_adapter *adapter, 3689 const struct firmware *fw, 3690 struct be_dma_mem *flash_cmd, int num_of_images) 3691 { 3692 int status = 0, i, filehdr_size = 0; 3693 int img_offset, img_size, img_optype, redboot; 3694 int img_hdrs_size = num_of_images * sizeof(struct image_hdr); 3695 const u8 *p = fw->data; 3696 struct flash_section_info *fsec = NULL; 3697 3698 filehdr_size = sizeof(struct flash_file_hdr_g3); 3699 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw); 3700 if (!fsec) { 3701 dev_err(&adapter->pdev->dev, 3702 "Invalid Cookie. UFI corrupted ?\n"); 3703 return -1; 3704 } 3705 3706 for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) { 3707 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset); 3708 img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size); 3709 3710 switch (le32_to_cpu(fsec->fsec_entry[i].type)) { 3711 case IMAGE_FIRMWARE_iSCSI: 3712 img_optype = OPTYPE_ISCSI_ACTIVE; 3713 break; 3714 case IMAGE_BOOT_CODE: 3715 img_optype = OPTYPE_REDBOOT; 3716 break; 3717 case IMAGE_OPTION_ROM_ISCSI: 3718 img_optype = OPTYPE_BIOS; 3719 break; 3720 case IMAGE_OPTION_ROM_PXE: 3721 img_optype = OPTYPE_PXE_BIOS; 3722 break; 3723 case IMAGE_OPTION_ROM_FCoE: 3724 img_optype = OPTYPE_FCOE_BIOS; 3725 break; 3726 case IMAGE_FIRMWARE_BACKUP_iSCSI: 3727 img_optype = OPTYPE_ISCSI_BACKUP; 3728 break; 3729 case IMAGE_NCSI: 3730 img_optype = OPTYPE_NCSI_FW; 3731 break; 3732 default: 3733 continue; 3734 } 3735 3736 if (img_optype == OPTYPE_REDBOOT) { 3737 redboot = be_flash_redboot(adapter, fw->data, 3738 img_offset, img_size, 3739 filehdr_size + img_hdrs_size); 3740 if (!redboot) 3741 continue; 3742 } 3743 3744 p = fw->data; 3745 p += filehdr_size + img_offset + img_hdrs_size; 3746 if (p + img_size > fw->data + fw->size) 3747 return -1; 3748 3749 status = be_flash(adapter, p, flash_cmd, img_optype, img_size); 3750 if (status) { 3751 dev_err(&adapter->pdev->dev, 3752 "Flashing section type %d failed.\n", 3753 fsec->fsec_entry[i].type); 3754 return status; 3755 } 3756 } 3757 return 0; 3758 } 3759 3760 static int lancer_fw_download(struct be_adapter *adapter, 3761 const struct firmware *fw) 3762 { 3763 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024) 3764 #define LANCER_FW_DOWNLOAD_LOCATION "/prg" 3765 struct be_dma_mem flash_cmd; 3766 const u8 *data_ptr = NULL; 3767 u8 *dest_image_ptr = NULL; 3768 size_t image_size = 0; 3769 u32 chunk_size = 0; 3770 u32 data_written = 0; 3771 u32 offset = 0; 3772 int status = 0; 3773 u8 add_status = 0; 3774 u8 change_status; 3775 3776 if (!IS_ALIGNED(fw->size, sizeof(u32))) { 3777 dev_err(&adapter->pdev->dev, 3778 "FW Image not properly aligned. " 3779 "Length must be 4 byte aligned.\n"); 3780 status = -EINVAL; 3781 goto lancer_fw_exit; 3782 } 3783 3784 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object) 3785 + LANCER_FW_DOWNLOAD_CHUNK; 3786 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size, 3787 &flash_cmd.dma, GFP_KERNEL); 3788 if (!flash_cmd.va) { 3789 status = -ENOMEM; 3790 goto lancer_fw_exit; 3791 } 3792 3793 dest_image_ptr = flash_cmd.va + 3794 sizeof(struct lancer_cmd_req_write_object); 3795 image_size = fw->size; 3796 data_ptr = fw->data; 3797 3798 while (image_size) { 3799 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK); 3800 3801 /* Copy the image chunk content. */ 3802 memcpy(dest_image_ptr, data_ptr, chunk_size); 3803 3804 status = lancer_cmd_write_object(adapter, &flash_cmd, 3805 chunk_size, offset, 3806 LANCER_FW_DOWNLOAD_LOCATION, 3807 &data_written, &change_status, 3808 &add_status); 3809 if (status) 3810 break; 3811 3812 offset += data_written; 3813 data_ptr += data_written; 3814 image_size -= data_written; 3815 } 3816 3817 if (!status) { 3818 /* Commit the FW written */ 3819 status = lancer_cmd_write_object(adapter, &flash_cmd, 3820 0, offset, 3821 LANCER_FW_DOWNLOAD_LOCATION, 3822 &data_written, &change_status, 3823 &add_status); 3824 } 3825 3826 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va, 3827 flash_cmd.dma); 3828 if (status) { 3829 dev_err(&adapter->pdev->dev, 3830 "Firmware load error. " 3831 "Status code: 0x%x Additional Status: 0x%x\n", 3832 status, add_status); 3833 goto lancer_fw_exit; 3834 } 3835 3836 if (change_status == LANCER_FW_RESET_NEEDED) { 3837 dev_info(&adapter->pdev->dev, 3838 "Resetting adapter to activate new FW\n"); 3839 status = lancer_physdev_ctrl(adapter, 3840 PHYSDEV_CONTROL_FW_RESET_MASK); 3841 if (status) { 3842 dev_err(&adapter->pdev->dev, 3843 "Adapter busy for FW reset.\n" 3844 "New FW will not be active.\n"); 3845 goto lancer_fw_exit; 3846 } 3847 } else if (change_status != LANCER_NO_RESET_NEEDED) { 3848 dev_err(&adapter->pdev->dev, 3849 "System reboot required for new FW" 3850 " to be active\n"); 3851 } 3852 3853 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n"); 3854 lancer_fw_exit: 3855 return status; 3856 } 3857 3858 #define UFI_TYPE2 2 3859 #define UFI_TYPE3 3 3860 #define UFI_TYPE3R 10 3861 #define UFI_TYPE4 4 3862 static int be_get_ufi_type(struct be_adapter *adapter, 3863 struct flash_file_hdr_g3 *fhdr) 3864 { 3865 if (fhdr == NULL) 3866 goto be_get_ufi_exit; 3867 3868 if (skyhawk_chip(adapter) && fhdr->build[0] == '4') 3869 return UFI_TYPE4; 3870 else if (BE3_chip(adapter) && fhdr->build[0] == '3') { 3871 if (fhdr->asic_type_rev == 0x10) 3872 return UFI_TYPE3R; 3873 else 3874 return UFI_TYPE3; 3875 } else if (BE2_chip(adapter) && fhdr->build[0] == '2') 3876 return UFI_TYPE2; 3877 3878 be_get_ufi_exit: 3879 dev_err(&adapter->pdev->dev, 3880 "UFI and Interface are not compatible for flashing\n"); 3881 return -1; 3882 } 3883 3884 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw) 3885 { 3886 struct flash_file_hdr_g3 *fhdr3; 3887 struct image_hdr *img_hdr_ptr = NULL; 3888 struct be_dma_mem flash_cmd; 3889 const u8 *p; 3890 int status = 0, i = 0, num_imgs = 0, ufi_type = 0; 3891 3892 flash_cmd.size = sizeof(struct be_cmd_write_flashrom); 3893 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size, 3894 &flash_cmd.dma, GFP_KERNEL); 3895 if (!flash_cmd.va) { 3896 status = -ENOMEM; 3897 goto be_fw_exit; 3898 } 3899 3900 p = fw->data; 3901 fhdr3 = (struct flash_file_hdr_g3 *)p; 3902 3903 ufi_type = be_get_ufi_type(adapter, fhdr3); 3904 3905 num_imgs = le32_to_cpu(fhdr3->num_imgs); 3906 for (i = 0; i < num_imgs; i++) { 3907 img_hdr_ptr = (struct image_hdr *)(fw->data + 3908 (sizeof(struct flash_file_hdr_g3) + 3909 i * sizeof(struct image_hdr))); 3910 if (le32_to_cpu(img_hdr_ptr->imageid) == 1) { 3911 switch (ufi_type) { 3912 case UFI_TYPE4: 3913 status = be_flash_skyhawk(adapter, fw, 3914 &flash_cmd, num_imgs); 3915 break; 3916 case UFI_TYPE3R: 3917 status = be_flash_BEx(adapter, fw, &flash_cmd, 3918 num_imgs); 3919 break; 3920 case UFI_TYPE3: 3921 /* Do not flash this ufi on BE3-R cards */ 3922 if (adapter->asic_rev < 0x10) 3923 status = be_flash_BEx(adapter, fw, 3924 &flash_cmd, 3925 num_imgs); 3926 else { 3927 status = -1; 3928 dev_err(&adapter->pdev->dev, 3929 "Can't load BE3 UFI on BE3R\n"); 3930 } 3931 } 3932 } 3933 } 3934 3935 if (ufi_type == UFI_TYPE2) 3936 status = be_flash_BEx(adapter, fw, &flash_cmd, 0); 3937 else if (ufi_type == -1) 3938 status = -1; 3939 3940 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va, 3941 flash_cmd.dma); 3942 if (status) { 3943 dev_err(&adapter->pdev->dev, "Firmware load error\n"); 3944 goto be_fw_exit; 3945 } 3946 3947 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n"); 3948 3949 be_fw_exit: 3950 return status; 3951 } 3952 3953 int be_load_fw(struct be_adapter *adapter, u8 *fw_file) 3954 { 3955 const struct firmware *fw; 3956 int status; 3957 3958 if (!netif_running(adapter->netdev)) { 3959 dev_err(&adapter->pdev->dev, 3960 "Firmware load not allowed (interface is down)\n"); 3961 return -1; 3962 } 3963 3964 status = request_firmware(&fw, fw_file, &adapter->pdev->dev); 3965 if (status) 3966 goto fw_exit; 3967 3968 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file); 3969 3970 if (lancer_chip(adapter)) 3971 status = lancer_fw_download(adapter, fw); 3972 else 3973 status = be_fw_download(adapter, fw); 3974 3975 if (!status) 3976 be_cmd_get_fw_ver(adapter, adapter->fw_ver, 3977 adapter->fw_on_flash); 3978 3979 fw_exit: 3980 release_firmware(fw); 3981 return status; 3982 } 3983 3984 static int be_ndo_bridge_setlink(struct net_device *dev, 3985 struct nlmsghdr *nlh) 3986 { 3987 struct be_adapter *adapter = netdev_priv(dev); 3988 struct nlattr *attr, *br_spec; 3989 int rem; 3990 int status = 0; 3991 u16 mode = 0; 3992 3993 if (!sriov_enabled(adapter)) 3994 return -EOPNOTSUPP; 3995 3996 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); 3997 3998 nla_for_each_nested(attr, br_spec, rem) { 3999 if (nla_type(attr) != IFLA_BRIDGE_MODE) 4000 continue; 4001 4002 mode = nla_get_u16(attr); 4003 if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB) 4004 return -EINVAL; 4005 4006 status = be_cmd_set_hsw_config(adapter, 0, 0, 4007 adapter->if_handle, 4008 mode == BRIDGE_MODE_VEPA ? 4009 PORT_FWD_TYPE_VEPA : 4010 PORT_FWD_TYPE_VEB); 4011 if (status) 4012 goto err; 4013 4014 dev_info(&adapter->pdev->dev, "enabled switch mode: %s\n", 4015 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB"); 4016 4017 return status; 4018 } 4019 err: 4020 dev_err(&adapter->pdev->dev, "Failed to set switch mode %s\n", 4021 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB"); 4022 4023 return status; 4024 } 4025 4026 static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, 4027 struct net_device *dev, 4028 u32 filter_mask) 4029 { 4030 struct be_adapter *adapter = netdev_priv(dev); 4031 int status = 0; 4032 u8 hsw_mode; 4033 4034 if (!sriov_enabled(adapter)) 4035 return 0; 4036 4037 /* BE and Lancer chips support VEB mode only */ 4038 if (BEx_chip(adapter) || lancer_chip(adapter)) { 4039 hsw_mode = PORT_FWD_TYPE_VEB; 4040 } else { 4041 status = be_cmd_get_hsw_config(adapter, NULL, 0, 4042 adapter->if_handle, &hsw_mode); 4043 if (status) 4044 return 0; 4045 } 4046 4047 return ndo_dflt_bridge_getlink(skb, pid, seq, dev, 4048 hsw_mode == PORT_FWD_TYPE_VEPA ? 4049 BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB); 4050 } 4051 4052 static const struct net_device_ops be_netdev_ops = { 4053 .ndo_open = be_open, 4054 .ndo_stop = be_close, 4055 .ndo_start_xmit = be_xmit, 4056 .ndo_set_rx_mode = be_set_rx_mode, 4057 .ndo_set_mac_address = be_mac_addr_set, 4058 .ndo_change_mtu = be_change_mtu, 4059 .ndo_get_stats64 = be_get_stats64, 4060 .ndo_validate_addr = eth_validate_addr, 4061 .ndo_vlan_rx_add_vid = be_vlan_add_vid, 4062 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid, 4063 .ndo_set_vf_mac = be_set_vf_mac, 4064 .ndo_set_vf_vlan = be_set_vf_vlan, 4065 .ndo_set_vf_tx_rate = be_set_vf_tx_rate, 4066 .ndo_get_vf_config = be_get_vf_config, 4067 #ifdef CONFIG_NET_POLL_CONTROLLER 4068 .ndo_poll_controller = be_netpoll, 4069 #endif 4070 .ndo_bridge_setlink = be_ndo_bridge_setlink, 4071 .ndo_bridge_getlink = be_ndo_bridge_getlink, 4072 #ifdef CONFIG_NET_RX_BUSY_POLL 4073 .ndo_busy_poll = be_busy_poll 4074 #endif 4075 }; 4076 4077 static void be_netdev_init(struct net_device *netdev) 4078 { 4079 struct be_adapter *adapter = netdev_priv(netdev); 4080 4081 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | 4082 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | 4083 NETIF_F_HW_VLAN_CTAG_TX; 4084 if (be_multi_rxq(adapter)) 4085 netdev->hw_features |= NETIF_F_RXHASH; 4086 4087 netdev->features |= netdev->hw_features | 4088 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER; 4089 4090 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | 4091 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; 4092 4093 netdev->priv_flags |= IFF_UNICAST_FLT; 4094 4095 netdev->flags |= IFF_MULTICAST; 4096 4097 netif_set_gso_max_size(netdev, 65535 - ETH_HLEN); 4098 4099 netdev->netdev_ops = &be_netdev_ops; 4100 4101 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops); 4102 } 4103 4104 static void be_unmap_pci_bars(struct be_adapter *adapter) 4105 { 4106 if (adapter->csr) 4107 pci_iounmap(adapter->pdev, adapter->csr); 4108 if (adapter->db) 4109 pci_iounmap(adapter->pdev, adapter->db); 4110 } 4111 4112 static int db_bar(struct be_adapter *adapter) 4113 { 4114 if (lancer_chip(adapter) || !be_physfn(adapter)) 4115 return 0; 4116 else 4117 return 4; 4118 } 4119 4120 static int be_roce_map_pci_bars(struct be_adapter *adapter) 4121 { 4122 if (skyhawk_chip(adapter)) { 4123 adapter->roce_db.size = 4096; 4124 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev, 4125 db_bar(adapter)); 4126 adapter->roce_db.total_size = pci_resource_len(adapter->pdev, 4127 db_bar(adapter)); 4128 } 4129 return 0; 4130 } 4131 4132 static int be_map_pci_bars(struct be_adapter *adapter) 4133 { 4134 u8 __iomem *addr; 4135 4136 if (BEx_chip(adapter) && be_physfn(adapter)) { 4137 adapter->csr = pci_iomap(adapter->pdev, 2, 0); 4138 if (adapter->csr == NULL) 4139 return -ENOMEM; 4140 } 4141 4142 addr = pci_iomap(adapter->pdev, db_bar(adapter), 0); 4143 if (addr == NULL) 4144 goto pci_map_err; 4145 adapter->db = addr; 4146 4147 be_roce_map_pci_bars(adapter); 4148 return 0; 4149 4150 pci_map_err: 4151 be_unmap_pci_bars(adapter); 4152 return -ENOMEM; 4153 } 4154 4155 static void be_ctrl_cleanup(struct be_adapter *adapter) 4156 { 4157 struct be_dma_mem *mem = &adapter->mbox_mem_alloced; 4158 4159 be_unmap_pci_bars(adapter); 4160 4161 if (mem->va) 4162 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va, 4163 mem->dma); 4164 4165 mem = &adapter->rx_filter; 4166 if (mem->va) 4167 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va, 4168 mem->dma); 4169 } 4170 4171 static int be_ctrl_init(struct be_adapter *adapter) 4172 { 4173 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced; 4174 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem; 4175 struct be_dma_mem *rx_filter = &adapter->rx_filter; 4176 u32 sli_intf; 4177 int status; 4178 4179 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf); 4180 adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >> 4181 SLI_INTF_FAMILY_SHIFT; 4182 adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0; 4183 4184 status = be_map_pci_bars(adapter); 4185 if (status) 4186 goto done; 4187 4188 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16; 4189 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev, 4190 mbox_mem_alloc->size, 4191 &mbox_mem_alloc->dma, 4192 GFP_KERNEL); 4193 if (!mbox_mem_alloc->va) { 4194 status = -ENOMEM; 4195 goto unmap_pci_bars; 4196 } 4197 mbox_mem_align->size = sizeof(struct be_mcc_mailbox); 4198 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16); 4199 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16); 4200 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox)); 4201 4202 rx_filter->size = sizeof(struct be_cmd_req_rx_filter); 4203 rx_filter->va = dma_zalloc_coherent(&adapter->pdev->dev, 4204 rx_filter->size, &rx_filter->dma, 4205 GFP_KERNEL); 4206 if (rx_filter->va == NULL) { 4207 status = -ENOMEM; 4208 goto free_mbox; 4209 } 4210 4211 mutex_init(&adapter->mbox_lock); 4212 spin_lock_init(&adapter->mcc_lock); 4213 spin_lock_init(&adapter->mcc_cq_lock); 4214 4215 init_completion(&adapter->et_cmd_compl); 4216 pci_save_state(adapter->pdev); 4217 return 0; 4218 4219 free_mbox: 4220 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size, 4221 mbox_mem_alloc->va, mbox_mem_alloc->dma); 4222 4223 unmap_pci_bars: 4224 be_unmap_pci_bars(adapter); 4225 4226 done: 4227 return status; 4228 } 4229 4230 static void be_stats_cleanup(struct be_adapter *adapter) 4231 { 4232 struct be_dma_mem *cmd = &adapter->stats_cmd; 4233 4234 if (cmd->va) 4235 dma_free_coherent(&adapter->pdev->dev, cmd->size, 4236 cmd->va, cmd->dma); 4237 } 4238 4239 static int be_stats_init(struct be_adapter *adapter) 4240 { 4241 struct be_dma_mem *cmd = &adapter->stats_cmd; 4242 4243 if (lancer_chip(adapter)) 4244 cmd->size = sizeof(struct lancer_cmd_req_pport_stats); 4245 else if (BE2_chip(adapter)) 4246 cmd->size = sizeof(struct be_cmd_req_get_stats_v0); 4247 else if (BE3_chip(adapter)) 4248 cmd->size = sizeof(struct be_cmd_req_get_stats_v1); 4249 else 4250 /* ALL non-BE ASICs */ 4251 cmd->size = sizeof(struct be_cmd_req_get_stats_v2); 4252 4253 cmd->va = dma_zalloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma, 4254 GFP_KERNEL); 4255 if (cmd->va == NULL) 4256 return -1; 4257 return 0; 4258 } 4259 4260 static void be_remove(struct pci_dev *pdev) 4261 { 4262 struct be_adapter *adapter = pci_get_drvdata(pdev); 4263 4264 if (!adapter) 4265 return; 4266 4267 be_roce_dev_remove(adapter); 4268 be_intr_set(adapter, false); 4269 4270 cancel_delayed_work_sync(&adapter->func_recovery_work); 4271 4272 unregister_netdev(adapter->netdev); 4273 4274 be_clear(adapter); 4275 4276 /* tell fw we're done with firing cmds */ 4277 be_cmd_fw_clean(adapter); 4278 4279 be_stats_cleanup(adapter); 4280 4281 be_ctrl_cleanup(adapter); 4282 4283 pci_disable_pcie_error_reporting(pdev); 4284 4285 pci_release_regions(pdev); 4286 pci_disable_device(pdev); 4287 4288 free_netdev(adapter->netdev); 4289 } 4290 4291 bool be_is_wol_supported(struct be_adapter *adapter) 4292 { 4293 return ((adapter->wol_cap & BE_WOL_CAP) && 4294 !be_is_wol_excluded(adapter)) ? true : false; 4295 } 4296 4297 u32 be_get_fw_log_level(struct be_adapter *adapter) 4298 { 4299 struct be_dma_mem extfat_cmd; 4300 struct be_fat_conf_params *cfgs; 4301 int status; 4302 u32 level = 0; 4303 int j; 4304 4305 if (lancer_chip(adapter)) 4306 return 0; 4307 4308 memset(&extfat_cmd, 0, sizeof(struct be_dma_mem)); 4309 extfat_cmd.size = sizeof(struct be_cmd_resp_get_ext_fat_caps); 4310 extfat_cmd.va = pci_alloc_consistent(adapter->pdev, extfat_cmd.size, 4311 &extfat_cmd.dma); 4312 4313 if (!extfat_cmd.va) { 4314 dev_err(&adapter->pdev->dev, "%s: Memory allocation failure\n", 4315 __func__); 4316 goto err; 4317 } 4318 4319 status = be_cmd_get_ext_fat_capabilites(adapter, &extfat_cmd); 4320 if (!status) { 4321 cfgs = (struct be_fat_conf_params *)(extfat_cmd.va + 4322 sizeof(struct be_cmd_resp_hdr)); 4323 for (j = 0; j < le32_to_cpu(cfgs->module[0].num_modes); j++) { 4324 if (cfgs->module[0].trace_lvl[j].mode == MODE_UART) 4325 level = cfgs->module[0].trace_lvl[j].dbg_lvl; 4326 } 4327 } 4328 pci_free_consistent(adapter->pdev, extfat_cmd.size, extfat_cmd.va, 4329 extfat_cmd.dma); 4330 err: 4331 return level; 4332 } 4333 4334 static int be_get_initial_config(struct be_adapter *adapter) 4335 { 4336 int status; 4337 u32 level; 4338 4339 status = be_cmd_get_cntl_attributes(adapter); 4340 if (status) 4341 return status; 4342 4343 status = be_cmd_get_acpi_wol_cap(adapter); 4344 if (status) { 4345 /* in case of a failure to get wol capabillities 4346 * check the exclusion list to determine WOL capability */ 4347 if (!be_is_wol_excluded(adapter)) 4348 adapter->wol_cap |= BE_WOL_CAP; 4349 } 4350 4351 if (be_is_wol_supported(adapter)) 4352 adapter->wol = true; 4353 4354 /* Must be a power of 2 or else MODULO will BUG_ON */ 4355 adapter->be_get_temp_freq = 64; 4356 4357 level = be_get_fw_log_level(adapter); 4358 adapter->msg_enable = level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0; 4359 4360 adapter->cfg_num_qs = netif_get_num_default_rss_queues(); 4361 return 0; 4362 } 4363 4364 static int lancer_recover_func(struct be_adapter *adapter) 4365 { 4366 struct device *dev = &adapter->pdev->dev; 4367 int status; 4368 4369 status = lancer_test_and_set_rdy_state(adapter); 4370 if (status) 4371 goto err; 4372 4373 if (netif_running(adapter->netdev)) 4374 be_close(adapter->netdev); 4375 4376 be_clear(adapter); 4377 4378 be_clear_all_error(adapter); 4379 4380 status = be_setup(adapter); 4381 if (status) 4382 goto err; 4383 4384 if (netif_running(adapter->netdev)) { 4385 status = be_open(adapter->netdev); 4386 if (status) 4387 goto err; 4388 } 4389 4390 dev_err(dev, "Adapter recovery successful\n"); 4391 return 0; 4392 err: 4393 if (status == -EAGAIN) 4394 dev_err(dev, "Waiting for resource provisioning\n"); 4395 else 4396 dev_err(dev, "Adapter recovery failed\n"); 4397 4398 return status; 4399 } 4400 4401 static void be_func_recovery_task(struct work_struct *work) 4402 { 4403 struct be_adapter *adapter = 4404 container_of(work, struct be_adapter, func_recovery_work.work); 4405 int status = 0; 4406 4407 be_detect_error(adapter); 4408 4409 if (adapter->hw_error && lancer_chip(adapter)) { 4410 4411 rtnl_lock(); 4412 netif_device_detach(adapter->netdev); 4413 rtnl_unlock(); 4414 4415 status = lancer_recover_func(adapter); 4416 if (!status) 4417 netif_device_attach(adapter->netdev); 4418 } 4419 4420 /* In Lancer, for all errors other than provisioning error (-EAGAIN), 4421 * no need to attempt further recovery. 4422 */ 4423 if (!status || status == -EAGAIN) 4424 schedule_delayed_work(&adapter->func_recovery_work, 4425 msecs_to_jiffies(1000)); 4426 } 4427 4428 static void be_worker(struct work_struct *work) 4429 { 4430 struct be_adapter *adapter = 4431 container_of(work, struct be_adapter, work.work); 4432 struct be_rx_obj *rxo; 4433 int i; 4434 4435 /* when interrupts are not yet enabled, just reap any pending 4436 * mcc completions */ 4437 if (!netif_running(adapter->netdev)) { 4438 local_bh_disable(); 4439 be_process_mcc(adapter); 4440 local_bh_enable(); 4441 goto reschedule; 4442 } 4443 4444 if (!adapter->stats_cmd_sent) { 4445 if (lancer_chip(adapter)) 4446 lancer_cmd_get_pport_stats(adapter, 4447 &adapter->stats_cmd); 4448 else 4449 be_cmd_get_stats(adapter, &adapter->stats_cmd); 4450 } 4451 4452 if (be_physfn(adapter) && 4453 MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0) 4454 be_cmd_get_die_temperature(adapter); 4455 4456 for_all_rx_queues(adapter, rxo, i) { 4457 /* Replenish RX-queues starved due to memory 4458 * allocation failures. 4459 */ 4460 if (rxo->rx_post_starved) 4461 be_post_rx_frags(rxo, GFP_KERNEL); 4462 } 4463 4464 be_eqd_update(adapter); 4465 4466 reschedule: 4467 adapter->work_counter++; 4468 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000)); 4469 } 4470 4471 /* If any VFs are already enabled don't FLR the PF */ 4472 static bool be_reset_required(struct be_adapter *adapter) 4473 { 4474 return pci_num_vf(adapter->pdev) ? false : true; 4475 } 4476 4477 static char *mc_name(struct be_adapter *adapter) 4478 { 4479 if (adapter->function_mode & FLEX10_MODE) 4480 return "FLEX10"; 4481 else if (adapter->function_mode & VNIC_MODE) 4482 return "vNIC"; 4483 else if (adapter->function_mode & UMC_ENABLED) 4484 return "UMC"; 4485 else 4486 return ""; 4487 } 4488 4489 static inline char *func_name(struct be_adapter *adapter) 4490 { 4491 return be_physfn(adapter) ? "PF" : "VF"; 4492 } 4493 4494 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id) 4495 { 4496 int status = 0; 4497 struct be_adapter *adapter; 4498 struct net_device *netdev; 4499 char port_name; 4500 4501 status = pci_enable_device(pdev); 4502 if (status) 4503 goto do_none; 4504 4505 status = pci_request_regions(pdev, DRV_NAME); 4506 if (status) 4507 goto disable_dev; 4508 pci_set_master(pdev); 4509 4510 netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS); 4511 if (netdev == NULL) { 4512 status = -ENOMEM; 4513 goto rel_reg; 4514 } 4515 adapter = netdev_priv(netdev); 4516 adapter->pdev = pdev; 4517 pci_set_drvdata(pdev, adapter); 4518 adapter->netdev = netdev; 4519 SET_NETDEV_DEV(netdev, &pdev->dev); 4520 4521 status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); 4522 if (!status) { 4523 netdev->features |= NETIF_F_HIGHDMA; 4524 } else { 4525 status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); 4526 if (status) { 4527 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n"); 4528 goto free_netdev; 4529 } 4530 } 4531 4532 if (be_physfn(adapter)) { 4533 status = pci_enable_pcie_error_reporting(pdev); 4534 if (!status) 4535 dev_info(&pdev->dev, "PCIe error reporting enabled\n"); 4536 } 4537 4538 status = be_ctrl_init(adapter); 4539 if (status) 4540 goto free_netdev; 4541 4542 /* sync up with fw's ready state */ 4543 if (be_physfn(adapter)) { 4544 status = be_fw_wait_ready(adapter); 4545 if (status) 4546 goto ctrl_clean; 4547 } 4548 4549 if (be_reset_required(adapter)) { 4550 status = be_cmd_reset_function(adapter); 4551 if (status) 4552 goto ctrl_clean; 4553 4554 /* Wait for interrupts to quiesce after an FLR */ 4555 msleep(100); 4556 } 4557 4558 /* Allow interrupts for other ULPs running on NIC function */ 4559 be_intr_set(adapter, true); 4560 4561 /* tell fw we're ready to fire cmds */ 4562 status = be_cmd_fw_init(adapter); 4563 if (status) 4564 goto ctrl_clean; 4565 4566 status = be_stats_init(adapter); 4567 if (status) 4568 goto ctrl_clean; 4569 4570 status = be_get_initial_config(adapter); 4571 if (status) 4572 goto stats_clean; 4573 4574 INIT_DELAYED_WORK(&adapter->work, be_worker); 4575 INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task); 4576 adapter->rx_fc = adapter->tx_fc = true; 4577 4578 status = be_setup(adapter); 4579 if (status) 4580 goto stats_clean; 4581 4582 be_netdev_init(netdev); 4583 status = register_netdev(netdev); 4584 if (status != 0) 4585 goto unsetup; 4586 4587 be_roce_dev_add(adapter); 4588 4589 schedule_delayed_work(&adapter->func_recovery_work, 4590 msecs_to_jiffies(1000)); 4591 4592 be_cmd_query_port_name(adapter, &port_name); 4593 4594 dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev), 4595 func_name(adapter), mc_name(adapter), port_name); 4596 4597 return 0; 4598 4599 unsetup: 4600 be_clear(adapter); 4601 stats_clean: 4602 be_stats_cleanup(adapter); 4603 ctrl_clean: 4604 be_ctrl_cleanup(adapter); 4605 free_netdev: 4606 free_netdev(netdev); 4607 rel_reg: 4608 pci_release_regions(pdev); 4609 disable_dev: 4610 pci_disable_device(pdev); 4611 do_none: 4612 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev)); 4613 return status; 4614 } 4615 4616 static int be_suspend(struct pci_dev *pdev, pm_message_t state) 4617 { 4618 struct be_adapter *adapter = pci_get_drvdata(pdev); 4619 struct net_device *netdev = adapter->netdev; 4620 4621 if (adapter->wol) 4622 be_setup_wol(adapter, true); 4623 4624 be_intr_set(adapter, false); 4625 cancel_delayed_work_sync(&adapter->func_recovery_work); 4626 4627 netif_device_detach(netdev); 4628 if (netif_running(netdev)) { 4629 rtnl_lock(); 4630 be_close(netdev); 4631 rtnl_unlock(); 4632 } 4633 be_clear(adapter); 4634 4635 pci_save_state(pdev); 4636 pci_disable_device(pdev); 4637 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 4638 return 0; 4639 } 4640 4641 static int be_resume(struct pci_dev *pdev) 4642 { 4643 int status = 0; 4644 struct be_adapter *adapter = pci_get_drvdata(pdev); 4645 struct net_device *netdev = adapter->netdev; 4646 4647 netif_device_detach(netdev); 4648 4649 status = pci_enable_device(pdev); 4650 if (status) 4651 return status; 4652 4653 pci_set_power_state(pdev, PCI_D0); 4654 pci_restore_state(pdev); 4655 4656 status = be_fw_wait_ready(adapter); 4657 if (status) 4658 return status; 4659 4660 be_intr_set(adapter, true); 4661 /* tell fw we're ready to fire cmds */ 4662 status = be_cmd_fw_init(adapter); 4663 if (status) 4664 return status; 4665 4666 be_setup(adapter); 4667 if (netif_running(netdev)) { 4668 rtnl_lock(); 4669 be_open(netdev); 4670 rtnl_unlock(); 4671 } 4672 4673 schedule_delayed_work(&adapter->func_recovery_work, 4674 msecs_to_jiffies(1000)); 4675 netif_device_attach(netdev); 4676 4677 if (adapter->wol) 4678 be_setup_wol(adapter, false); 4679 4680 return 0; 4681 } 4682 4683 /* 4684 * An FLR will stop BE from DMAing any data. 4685 */ 4686 static void be_shutdown(struct pci_dev *pdev) 4687 { 4688 struct be_adapter *adapter = pci_get_drvdata(pdev); 4689 4690 if (!adapter) 4691 return; 4692 4693 cancel_delayed_work_sync(&adapter->work); 4694 cancel_delayed_work_sync(&adapter->func_recovery_work); 4695 4696 netif_device_detach(adapter->netdev); 4697 4698 be_cmd_reset_function(adapter); 4699 4700 pci_disable_device(pdev); 4701 } 4702 4703 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev, 4704 pci_channel_state_t state) 4705 { 4706 struct be_adapter *adapter = pci_get_drvdata(pdev); 4707 struct net_device *netdev = adapter->netdev; 4708 4709 dev_err(&adapter->pdev->dev, "EEH error detected\n"); 4710 4711 if (!adapter->eeh_error) { 4712 adapter->eeh_error = true; 4713 4714 cancel_delayed_work_sync(&adapter->func_recovery_work); 4715 4716 rtnl_lock(); 4717 netif_device_detach(netdev); 4718 if (netif_running(netdev)) 4719 be_close(netdev); 4720 rtnl_unlock(); 4721 4722 be_clear(adapter); 4723 } 4724 4725 if (state == pci_channel_io_perm_failure) 4726 return PCI_ERS_RESULT_DISCONNECT; 4727 4728 pci_disable_device(pdev); 4729 4730 /* The error could cause the FW to trigger a flash debug dump. 4731 * Resetting the card while flash dump is in progress 4732 * can cause it not to recover; wait for it to finish. 4733 * Wait only for first function as it is needed only once per 4734 * adapter. 4735 */ 4736 if (pdev->devfn == 0) 4737 ssleep(30); 4738 4739 return PCI_ERS_RESULT_NEED_RESET; 4740 } 4741 4742 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev) 4743 { 4744 struct be_adapter *adapter = pci_get_drvdata(pdev); 4745 int status; 4746 4747 dev_info(&adapter->pdev->dev, "EEH reset\n"); 4748 4749 status = pci_enable_device(pdev); 4750 if (status) 4751 return PCI_ERS_RESULT_DISCONNECT; 4752 4753 pci_set_master(pdev); 4754 pci_set_power_state(pdev, PCI_D0); 4755 pci_restore_state(pdev); 4756 4757 /* Check if card is ok and fw is ready */ 4758 dev_info(&adapter->pdev->dev, 4759 "Waiting for FW to be ready after EEH reset\n"); 4760 status = be_fw_wait_ready(adapter); 4761 if (status) 4762 return PCI_ERS_RESULT_DISCONNECT; 4763 4764 pci_cleanup_aer_uncorrect_error_status(pdev); 4765 be_clear_all_error(adapter); 4766 return PCI_ERS_RESULT_RECOVERED; 4767 } 4768 4769 static void be_eeh_resume(struct pci_dev *pdev) 4770 { 4771 int status = 0; 4772 struct be_adapter *adapter = pci_get_drvdata(pdev); 4773 struct net_device *netdev = adapter->netdev; 4774 4775 dev_info(&adapter->pdev->dev, "EEH resume\n"); 4776 4777 pci_save_state(pdev); 4778 4779 status = be_cmd_reset_function(adapter); 4780 if (status) 4781 goto err; 4782 4783 /* tell fw we're ready to fire cmds */ 4784 status = be_cmd_fw_init(adapter); 4785 if (status) 4786 goto err; 4787 4788 status = be_setup(adapter); 4789 if (status) 4790 goto err; 4791 4792 if (netif_running(netdev)) { 4793 status = be_open(netdev); 4794 if (status) 4795 goto err; 4796 } 4797 4798 schedule_delayed_work(&adapter->func_recovery_work, 4799 msecs_to_jiffies(1000)); 4800 netif_device_attach(netdev); 4801 return; 4802 err: 4803 dev_err(&adapter->pdev->dev, "EEH resume failed\n"); 4804 } 4805 4806 static const struct pci_error_handlers be_eeh_handlers = { 4807 .error_detected = be_eeh_err_detected, 4808 .slot_reset = be_eeh_reset, 4809 .resume = be_eeh_resume, 4810 }; 4811 4812 static struct pci_driver be_driver = { 4813 .name = DRV_NAME, 4814 .id_table = be_dev_ids, 4815 .probe = be_probe, 4816 .remove = be_remove, 4817 .suspend = be_suspend, 4818 .resume = be_resume, 4819 .shutdown = be_shutdown, 4820 .err_handler = &be_eeh_handlers 4821 }; 4822 4823 static int __init be_init_module(void) 4824 { 4825 if (rx_frag_size != 8192 && rx_frag_size != 4096 && 4826 rx_frag_size != 2048) { 4827 printk(KERN_WARNING DRV_NAME 4828 " : Module param rx_frag_size must be 2048/4096/8192." 4829 " Using 2048\n"); 4830 rx_frag_size = 2048; 4831 } 4832 4833 return pci_register_driver(&be_driver); 4834 } 4835 module_init(be_init_module); 4836 4837 static void __exit be_exit_module(void) 4838 { 4839 pci_unregister_driver(&be_driver); 4840 } 4841 module_exit(be_exit_module); 4842