| 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, 1, 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 | dev_err(&adapter->pdev->dev, |
| 2468 | "Error detected in the card\n"); |
| 2469 | } |
| 2470 | |
| 2471 | if (sliport_status & SLIPORT_STATUS_ERR_MASK) { |
| 2472 | dev_err(&adapter->pdev->dev, |
| 2473 | "ERR: sliport status 0x%x\n", sliport_status); |
| 2474 | dev_err(&adapter->pdev->dev, |
| 2475 | "ERR: sliport error1 0x%x\n", sliport_err1); |
| 2476 | dev_err(&adapter->pdev->dev, |
| 2477 | "ERR: sliport error2 0x%x\n", sliport_err2); |
| 2478 | } |
| 2479 | |
| 2480 | if (ue_lo) { |
| 2481 | for (i = 0; ue_lo; ue_lo >>= 1, i++) { |
| 2482 | if (ue_lo & 1) |
| 2483 | dev_err(&adapter->pdev->dev, |
| 2484 | "UE: %s bit set\n", ue_status_low_desc[i]); |
| 2485 | } |
| 2486 | } |
| 2487 | |
| 2488 | if (ue_hi) { |
| 2489 | for (i = 0; ue_hi; ue_hi >>= 1, i++) { |
| 2490 | if (ue_hi & 1) |
| 2491 | dev_err(&adapter->pdev->dev, |
| 2492 | "UE: %s bit set\n", ue_status_hi_desc[i]); |
| 2493 | } |
| 2494 | } |
| 2495 | |
| 2496 | } |
| 2497 | |
| 2498 | static void be_msix_disable(struct be_adapter *adapter) |
| 2499 | { |
| 2500 | if (msix_enabled(adapter)) { |
| 2501 | pci_disable_msix(adapter->pdev); |
| 2502 | adapter->num_msix_vec = 0; |
| 2503 | adapter->num_msix_roce_vec = 0; |
| 2504 | } |
| 2505 | } |
| 2506 | |
| 2507 | static int be_msix_enable(struct be_adapter *adapter) |
| 2508 | { |
| 2509 | int i, status, num_vec; |
| 2510 | struct device *dev = &adapter->pdev->dev; |
| 2511 | |
| 2512 | /* If RoCE is supported, program the max number of NIC vectors that |
| 2513 | * may be configured via set-channels, along with vectors needed for |
| 2514 | * RoCe. Else, just program the number we'll use initially. |
| 2515 | */ |
| 2516 | if (be_roce_supported(adapter)) |
| 2517 | num_vec = min_t(int, 2 * be_max_eqs(adapter), |
| 2518 | 2 * num_online_cpus()); |
| 2519 | else |
| 2520 | num_vec = adapter->cfg_num_qs; |
| 2521 | |
| 2522 | for (i = 0; i < num_vec; i++) |
| 2523 | adapter->msix_entries[i].entry = i; |
| 2524 | |
| 2525 | status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec); |
| 2526 | if (status == 0) { |
| 2527 | goto done; |
| 2528 | } else if (status >= MIN_MSIX_VECTORS) { |
| 2529 | num_vec = status; |
| 2530 | status = pci_enable_msix(adapter->pdev, adapter->msix_entries, |
| 2531 | num_vec); |
| 2532 | if (!status) |
| 2533 | goto done; |
| 2534 | } |
| 2535 | |
| 2536 | dev_warn(dev, "MSIx enable failed\n"); |
| 2537 | |
| 2538 | /* INTx is not supported in VFs, so fail probe if enable_msix fails */ |
| 2539 | if (!be_physfn(adapter)) |
| 2540 | return status; |
| 2541 | return 0; |
| 2542 | done: |
| 2543 | if (be_roce_supported(adapter) && num_vec > MIN_MSIX_VECTORS) { |
| 2544 | adapter->num_msix_roce_vec = num_vec / 2; |
| 2545 | dev_info(dev, "enabled %d MSI-x vector(s) for RoCE\n", |
| 2546 | adapter->num_msix_roce_vec); |
| 2547 | } |
| 2548 | |
| 2549 | adapter->num_msix_vec = num_vec - adapter->num_msix_roce_vec; |
| 2550 | |
| 2551 | dev_info(dev, "enabled %d MSI-x vector(s) for NIC\n", |
| 2552 | adapter->num_msix_vec); |
| 2553 | return 0; |
| 2554 | } |
| 2555 | |
| 2556 | static inline int be_msix_vec_get(struct be_adapter *adapter, |
| 2557 | struct be_eq_obj *eqo) |
| 2558 | { |
| 2559 | return adapter->msix_entries[eqo->msix_idx].vector; |
| 2560 | } |
| 2561 | |
| 2562 | static int be_msix_register(struct be_adapter *adapter) |
| 2563 | { |
| 2564 | struct net_device *netdev = adapter->netdev; |
| 2565 | struct be_eq_obj *eqo; |
| 2566 | int status, i, vec; |
| 2567 | |
| 2568 | for_all_evt_queues(adapter, eqo, i) { |
| 2569 | sprintf(eqo->desc, "%s-q%d", netdev->name, i); |
| 2570 | vec = be_msix_vec_get(adapter, eqo); |
| 2571 | status = request_irq(vec, be_msix, 0, eqo->desc, eqo); |
| 2572 | if (status) |
| 2573 | goto err_msix; |
| 2574 | } |
| 2575 | |
| 2576 | return 0; |
| 2577 | err_msix: |
| 2578 | for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--) |
| 2579 | free_irq(be_msix_vec_get(adapter, eqo), eqo); |
| 2580 | dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n", |
| 2581 | status); |
| 2582 | be_msix_disable(adapter); |
| 2583 | return status; |
| 2584 | } |
| 2585 | |
| 2586 | static int be_irq_register(struct be_adapter *adapter) |
| 2587 | { |
| 2588 | struct net_device *netdev = adapter->netdev; |
| 2589 | int status; |
| 2590 | |
| 2591 | if (msix_enabled(adapter)) { |
| 2592 | status = be_msix_register(adapter); |
| 2593 | if (status == 0) |
| 2594 | goto done; |
| 2595 | /* INTx is not supported for VF */ |
| 2596 | if (!be_physfn(adapter)) |
| 2597 | return status; |
| 2598 | } |
| 2599 | |
| 2600 | /* INTx: only the first EQ is used */ |
| 2601 | netdev->irq = adapter->pdev->irq; |
| 2602 | status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name, |
| 2603 | &adapter->eq_obj[0]); |
| 2604 | if (status) { |
| 2605 | dev_err(&adapter->pdev->dev, |
| 2606 | "INTx request IRQ failed - err %d\n", status); |
| 2607 | return status; |
| 2608 | } |
| 2609 | done: |
| 2610 | adapter->isr_registered = true; |
| 2611 | return 0; |
| 2612 | } |
| 2613 | |
| 2614 | static void be_irq_unregister(struct be_adapter *adapter) |
| 2615 | { |
| 2616 | struct net_device *netdev = adapter->netdev; |
| 2617 | struct be_eq_obj *eqo; |
| 2618 | int i; |
| 2619 | |
| 2620 | if (!adapter->isr_registered) |
| 2621 | return; |
| 2622 | |
| 2623 | /* INTx */ |
| 2624 | if (!msix_enabled(adapter)) { |
| 2625 | free_irq(netdev->irq, &adapter->eq_obj[0]); |
| 2626 | goto done; |
| 2627 | } |
| 2628 | |
| 2629 | /* MSIx */ |
| 2630 | for_all_evt_queues(adapter, eqo, i) |
| 2631 | free_irq(be_msix_vec_get(adapter, eqo), eqo); |
| 2632 | |
| 2633 | done: |
| 2634 | adapter->isr_registered = false; |
| 2635 | } |
| 2636 | |
| 2637 | static void be_rx_qs_destroy(struct be_adapter *adapter) |
| 2638 | { |
| 2639 | struct be_queue_info *q; |
| 2640 | struct be_rx_obj *rxo; |
| 2641 | int i; |
| 2642 | |
| 2643 | for_all_rx_queues(adapter, rxo, i) { |
| 2644 | q = &rxo->q; |
| 2645 | if (q->created) { |
| 2646 | be_cmd_rxq_destroy(adapter, q); |
| 2647 | be_rx_cq_clean(rxo); |
| 2648 | } |
| 2649 | be_queue_free(adapter, q); |
| 2650 | } |
| 2651 | } |
| 2652 | |
| 2653 | static int be_close(struct net_device *netdev) |
| 2654 | { |
| 2655 | struct be_adapter *adapter = netdev_priv(netdev); |
| 2656 | struct be_eq_obj *eqo; |
| 2657 | int i; |
| 2658 | |
| 2659 | be_roce_dev_close(adapter); |
| 2660 | |
| 2661 | for_all_evt_queues(adapter, eqo, i) { |
| 2662 | if (adapter->flags & BE_FLAGS_NAPI_ENABLED) { |
| 2663 | napi_disable(&eqo->napi); |
| 2664 | be_disable_busy_poll(eqo); |
| 2665 | } |
| 2666 | adapter->flags &= ~BE_FLAGS_NAPI_ENABLED; |
| 2667 | } |
| 2668 | |
| 2669 | be_async_mcc_disable(adapter); |
| 2670 | |
| 2671 | /* Wait for all pending tx completions to arrive so that |
| 2672 | * all tx skbs are freed. |
| 2673 | */ |
| 2674 | netif_tx_disable(netdev); |
| 2675 | be_tx_compl_clean(adapter); |
| 2676 | |
| 2677 | be_rx_qs_destroy(adapter); |
| 2678 | |
| 2679 | for_all_evt_queues(adapter, eqo, i) { |
| 2680 | if (msix_enabled(adapter)) |
| 2681 | synchronize_irq(be_msix_vec_get(adapter, eqo)); |
| 2682 | else |
| 2683 | synchronize_irq(netdev->irq); |
| 2684 | be_eq_clean(eqo); |
| 2685 | } |
| 2686 | |
| 2687 | be_irq_unregister(adapter); |
| 2688 | |
| 2689 | return 0; |
| 2690 | } |
| 2691 | |
| 2692 | static int be_rx_qs_create(struct be_adapter *adapter) |
| 2693 | { |
| 2694 | struct be_rx_obj *rxo; |
| 2695 | int rc, i, j; |
| 2696 | u8 rsstable[128]; |
| 2697 | |
| 2698 | for_all_rx_queues(adapter, rxo, i) { |
| 2699 | rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN, |
| 2700 | sizeof(struct be_eth_rx_d)); |
| 2701 | if (rc) |
| 2702 | return rc; |
| 2703 | } |
| 2704 | |
| 2705 | /* The FW would like the default RXQ to be created first */ |
| 2706 | rxo = default_rxo(adapter); |
| 2707 | rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size, |
| 2708 | adapter->if_handle, false, &rxo->rss_id); |
| 2709 | if (rc) |
| 2710 | return rc; |
| 2711 | |
| 2712 | for_all_rss_queues(adapter, rxo, i) { |
| 2713 | rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, |
| 2714 | rx_frag_size, adapter->if_handle, |
| 2715 | true, &rxo->rss_id); |
| 2716 | if (rc) |
| 2717 | return rc; |
| 2718 | } |
| 2719 | |
| 2720 | if (be_multi_rxq(adapter)) { |
| 2721 | for (j = 0; j < 128; j += adapter->num_rx_qs - 1) { |
| 2722 | for_all_rss_queues(adapter, rxo, i) { |
| 2723 | if ((j + i) >= 128) |
| 2724 | break; |
| 2725 | rsstable[j + i] = rxo->rss_id; |
| 2726 | } |
| 2727 | } |
| 2728 | adapter->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 | |
| 2729 | RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6; |
| 2730 | |
| 2731 | if (!BEx_chip(adapter)) |
| 2732 | adapter->rss_flags |= RSS_ENABLE_UDP_IPV4 | |
| 2733 | RSS_ENABLE_UDP_IPV6; |
| 2734 | |
| 2735 | rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags, |
| 2736 | 128); |
| 2737 | if (rc) { |
| 2738 | adapter->rss_flags = 0; |
| 2739 | return rc; |
| 2740 | } |
| 2741 | } |
| 2742 | |
| 2743 | /* First time posting */ |
| 2744 | for_all_rx_queues(adapter, rxo, i) |
| 2745 | be_post_rx_frags(rxo, GFP_KERNEL); |
| 2746 | return 0; |
| 2747 | } |
| 2748 | |
| 2749 | static int be_open(struct net_device *netdev) |
| 2750 | { |
| 2751 | struct be_adapter *adapter = netdev_priv(netdev); |
| 2752 | struct be_eq_obj *eqo; |
| 2753 | struct be_rx_obj *rxo; |
| 2754 | struct be_tx_obj *txo; |
| 2755 | u8 link_status; |
| 2756 | int status, i; |
| 2757 | |
| 2758 | status = be_rx_qs_create(adapter); |
| 2759 | if (status) |
| 2760 | goto err; |
| 2761 | |
| 2762 | status = be_irq_register(adapter); |
| 2763 | if (status) |
| 2764 | goto err; |
| 2765 | |
| 2766 | for_all_rx_queues(adapter, rxo, i) |
| 2767 | be_cq_notify(adapter, rxo->cq.id, true, 0); |
| 2768 | |
| 2769 | for_all_tx_queues(adapter, txo, i) |
| 2770 | be_cq_notify(adapter, txo->cq.id, true, 0); |
| 2771 | |
| 2772 | be_async_mcc_enable(adapter); |
| 2773 | |
| 2774 | for_all_evt_queues(adapter, eqo, i) { |
| 2775 | napi_enable(&eqo->napi); |
| 2776 | be_enable_busy_poll(eqo); |
| 2777 | be_eq_notify(adapter, eqo->q.id, true, false, 0); |
| 2778 | } |
| 2779 | adapter->flags |= BE_FLAGS_NAPI_ENABLED; |
| 2780 | |
| 2781 | status = be_cmd_link_status_query(adapter, NULL, &link_status, 0); |
| 2782 | if (!status) |
| 2783 | be_link_status_update(adapter, link_status); |
| 2784 | |
| 2785 | netif_tx_start_all_queues(netdev); |
| 2786 | be_roce_dev_open(adapter); |
| 2787 | return 0; |
| 2788 | err: |
| 2789 | be_close(adapter->netdev); |
| 2790 | return -EIO; |
| 2791 | } |
| 2792 | |
| 2793 | static int be_setup_wol(struct be_adapter *adapter, bool enable) |
| 2794 | { |
| 2795 | struct be_dma_mem cmd; |
| 2796 | int status = 0; |
| 2797 | u8 mac[ETH_ALEN]; |
| 2798 | |
| 2799 | memset(mac, 0, ETH_ALEN); |
| 2800 | |
| 2801 | cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config); |
| 2802 | cmd.va = dma_zalloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma, |
| 2803 | GFP_KERNEL); |
| 2804 | if (cmd.va == NULL) |
| 2805 | return -1; |
| 2806 | |
| 2807 | if (enable) { |
| 2808 | status = pci_write_config_dword(adapter->pdev, |
| 2809 | PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK); |
| 2810 | if (status) { |
| 2811 | dev_err(&adapter->pdev->dev, |
| 2812 | "Could not enable Wake-on-lan\n"); |
| 2813 | dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, |
| 2814 | cmd.dma); |
| 2815 | return status; |
| 2816 | } |
| 2817 | status = be_cmd_enable_magic_wol(adapter, |
| 2818 | adapter->netdev->dev_addr, &cmd); |
| 2819 | pci_enable_wake(adapter->pdev, PCI_D3hot, 1); |
| 2820 | pci_enable_wake(adapter->pdev, PCI_D3cold, 1); |
| 2821 | } else { |
| 2822 | status = be_cmd_enable_magic_wol(adapter, mac, &cmd); |
| 2823 | pci_enable_wake(adapter->pdev, PCI_D3hot, 0); |
| 2824 | pci_enable_wake(adapter->pdev, PCI_D3cold, 0); |
| 2825 | } |
| 2826 | |
| 2827 | dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma); |
| 2828 | return status; |
| 2829 | } |
| 2830 | |
| 2831 | /* |
| 2832 | * Generate a seed MAC address from the PF MAC Address using jhash. |
| 2833 | * MAC Address for VFs are assigned incrementally starting from the seed. |
| 2834 | * These addresses are programmed in the ASIC by the PF and the VF driver |
| 2835 | * queries for the MAC address during its probe. |
| 2836 | */ |
| 2837 | static int be_vf_eth_addr_config(struct be_adapter *adapter) |
| 2838 | { |
| 2839 | u32 vf; |
| 2840 | int status = 0; |
| 2841 | u8 mac[ETH_ALEN]; |
| 2842 | struct be_vf_cfg *vf_cfg; |
| 2843 | |
| 2844 | be_vf_eth_addr_generate(adapter, mac); |
| 2845 | |
| 2846 | for_all_vfs(adapter, vf_cfg, vf) { |
| 2847 | if (BEx_chip(adapter)) |
| 2848 | status = be_cmd_pmac_add(adapter, mac, |
| 2849 | vf_cfg->if_handle, |
| 2850 | &vf_cfg->pmac_id, vf + 1); |
| 2851 | else |
| 2852 | status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle, |
| 2853 | vf + 1); |
| 2854 | |
| 2855 | if (status) |
| 2856 | dev_err(&adapter->pdev->dev, |
| 2857 | "Mac address assignment failed for VF %d\n", vf); |
| 2858 | else |
| 2859 | memcpy(vf_cfg->mac_addr, mac, ETH_ALEN); |
| 2860 | |
| 2861 | mac[5] += 1; |
| 2862 | } |
| 2863 | return status; |
| 2864 | } |
| 2865 | |
| 2866 | static int be_vfs_mac_query(struct be_adapter *adapter) |
| 2867 | { |
| 2868 | int status, vf; |
| 2869 | u8 mac[ETH_ALEN]; |
| 2870 | struct be_vf_cfg *vf_cfg; |
| 2871 | bool active = false; |
| 2872 | |
| 2873 | for_all_vfs(adapter, vf_cfg, vf) { |
| 2874 | be_cmd_get_mac_from_list(adapter, mac, &active, |
| 2875 | &vf_cfg->pmac_id, 0); |
| 2876 | |
| 2877 | status = be_cmd_mac_addr_query(adapter, mac, false, |
| 2878 | vf_cfg->if_handle, 0); |
| 2879 | if (status) |
| 2880 | return status; |
| 2881 | memcpy(vf_cfg->mac_addr, mac, ETH_ALEN); |
| 2882 | } |
| 2883 | return 0; |
| 2884 | } |
| 2885 | |
| 2886 | static void be_vf_clear(struct be_adapter *adapter) |
| 2887 | { |
| 2888 | struct be_vf_cfg *vf_cfg; |
| 2889 | u32 vf; |
| 2890 | |
| 2891 | if (pci_vfs_assigned(adapter->pdev)) { |
| 2892 | dev_warn(&adapter->pdev->dev, |
| 2893 | "VFs are assigned to VMs: not disabling VFs\n"); |
| 2894 | goto done; |
| 2895 | } |
| 2896 | |
| 2897 | pci_disable_sriov(adapter->pdev); |
| 2898 | |
| 2899 | for_all_vfs(adapter, vf_cfg, vf) { |
| 2900 | if (BEx_chip(adapter)) |
| 2901 | be_cmd_pmac_del(adapter, vf_cfg->if_handle, |
| 2902 | vf_cfg->pmac_id, vf + 1); |
| 2903 | else |
| 2904 | be_cmd_set_mac(adapter, NULL, vf_cfg->if_handle, |
| 2905 | vf + 1); |
| 2906 | |
| 2907 | be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1); |
| 2908 | } |
| 2909 | done: |
| 2910 | kfree(adapter->vf_cfg); |
| 2911 | adapter->num_vfs = 0; |
| 2912 | } |
| 2913 | |
| 2914 | static void be_clear_queues(struct be_adapter *adapter) |
| 2915 | { |
| 2916 | be_mcc_queues_destroy(adapter); |
| 2917 | be_rx_cqs_destroy(adapter); |
| 2918 | be_tx_queues_destroy(adapter); |
| 2919 | be_evt_queues_destroy(adapter); |
| 2920 | } |
| 2921 | |
| 2922 | static void be_cancel_worker(struct be_adapter *adapter) |
| 2923 | { |
| 2924 | if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) { |
| 2925 | cancel_delayed_work_sync(&adapter->work); |
| 2926 | adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED; |
| 2927 | } |
| 2928 | } |
| 2929 | |
| 2930 | static int be_clear(struct be_adapter *adapter) |
| 2931 | { |
| 2932 | int i; |
| 2933 | |
| 2934 | be_cancel_worker(adapter); |
| 2935 | |
| 2936 | if (sriov_enabled(adapter)) |
| 2937 | be_vf_clear(adapter); |
| 2938 | |
| 2939 | /* delete the primary mac along with the uc-mac list */ |
| 2940 | for (i = 0; i < (adapter->uc_macs + 1); i++) |
| 2941 | be_cmd_pmac_del(adapter, adapter->if_handle, |
| 2942 | adapter->pmac_id[i], 0); |
| 2943 | adapter->uc_macs = 0; |
| 2944 | |
| 2945 | be_cmd_if_destroy(adapter, adapter->if_handle, 0); |
| 2946 | |
| 2947 | be_clear_queues(adapter); |
| 2948 | |
| 2949 | kfree(adapter->pmac_id); |
| 2950 | adapter->pmac_id = NULL; |
| 2951 | |
| 2952 | be_msix_disable(adapter); |
| 2953 | return 0; |
| 2954 | } |
| 2955 | |
| 2956 | static int be_vfs_if_create(struct be_adapter *adapter) |
| 2957 | { |
| 2958 | struct be_resources res = {0}; |
| 2959 | struct be_vf_cfg *vf_cfg; |
| 2960 | u32 cap_flags, en_flags, vf; |
| 2961 | int status = 0; |
| 2962 | |
| 2963 | cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST | |
| 2964 | BE_IF_FLAGS_MULTICAST; |
| 2965 | |
| 2966 | for_all_vfs(adapter, vf_cfg, vf) { |
| 2967 | if (!BE3_chip(adapter)) { |
| 2968 | status = be_cmd_get_profile_config(adapter, &res, |
| 2969 | vf + 1); |
| 2970 | if (!status) |
| 2971 | cap_flags = res.if_cap_flags; |
| 2972 | } |
| 2973 | |
| 2974 | /* If a FW profile exists, then cap_flags are updated */ |
| 2975 | en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED | |
| 2976 | BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST); |
| 2977 | status = be_cmd_if_create(adapter, cap_flags, en_flags, |
| 2978 | &vf_cfg->if_handle, vf + 1); |
| 2979 | if (status) |
| 2980 | goto err; |
| 2981 | } |
| 2982 | err: |
| 2983 | return status; |
| 2984 | } |
| 2985 | |
| 2986 | static int be_vf_setup_init(struct be_adapter *adapter) |
| 2987 | { |
| 2988 | struct be_vf_cfg *vf_cfg; |
| 2989 | int vf; |
| 2990 | |
| 2991 | adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg), |
| 2992 | GFP_KERNEL); |
| 2993 | if (!adapter->vf_cfg) |
| 2994 | return -ENOMEM; |
| 2995 | |
| 2996 | for_all_vfs(adapter, vf_cfg, vf) { |
| 2997 | vf_cfg->if_handle = -1; |
| 2998 | vf_cfg->pmac_id = -1; |
| 2999 | } |
| 3000 | return 0; |
| 3001 | } |
| 3002 | |
| 3003 | static int be_vf_setup(struct be_adapter *adapter) |
| 3004 | { |
| 3005 | struct be_vf_cfg *vf_cfg; |
| 3006 | u16 def_vlan, lnk_speed; |
| 3007 | int status, old_vfs, vf; |
| 3008 | struct device *dev = &adapter->pdev->dev; |
| 3009 | u32 privileges; |
| 3010 | |
| 3011 | old_vfs = pci_num_vf(adapter->pdev); |
| 3012 | if (old_vfs) { |
| 3013 | dev_info(dev, "%d VFs are already enabled\n", old_vfs); |
| 3014 | if (old_vfs != num_vfs) |
| 3015 | dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs); |
| 3016 | adapter->num_vfs = old_vfs; |
| 3017 | } else { |
| 3018 | if (num_vfs > be_max_vfs(adapter)) |
| 3019 | dev_info(dev, "Device supports %d VFs and not %d\n", |
| 3020 | be_max_vfs(adapter), num_vfs); |
| 3021 | adapter->num_vfs = min_t(u16, num_vfs, be_max_vfs(adapter)); |
| 3022 | if (!adapter->num_vfs) |
| 3023 | return 0; |
| 3024 | } |
| 3025 | |
| 3026 | status = be_vf_setup_init(adapter); |
| 3027 | if (status) |
| 3028 | goto err; |
| 3029 | |
| 3030 | if (old_vfs) { |
| 3031 | for_all_vfs(adapter, vf_cfg, vf) { |
| 3032 | status = be_cmd_get_if_id(adapter, vf_cfg, vf); |
| 3033 | if (status) |
| 3034 | goto err; |
| 3035 | } |
| 3036 | } else { |
| 3037 | status = be_vfs_if_create(adapter); |
| 3038 | if (status) |
| 3039 | goto err; |
| 3040 | } |
| 3041 | |
| 3042 | if (old_vfs) { |
| 3043 | status = be_vfs_mac_query(adapter); |
| 3044 | if (status) |
| 3045 | goto err; |
| 3046 | } else { |
| 3047 | status = be_vf_eth_addr_config(adapter); |
| 3048 | if (status) |
| 3049 | goto err; |
| 3050 | } |
| 3051 | |
| 3052 | for_all_vfs(adapter, vf_cfg, vf) { |
| 3053 | /* Allow VFs to programs MAC/VLAN filters */ |
| 3054 | status = be_cmd_get_fn_privileges(adapter, &privileges, vf + 1); |
| 3055 | if (!status && !(privileges & BE_PRIV_FILTMGMT)) { |
| 3056 | status = be_cmd_set_fn_privileges(adapter, |
| 3057 | privileges | |
| 3058 | BE_PRIV_FILTMGMT, |
| 3059 | vf + 1); |
| 3060 | if (!status) |
| 3061 | dev_info(dev, "VF%d has FILTMGMT privilege\n", |
| 3062 | vf); |
| 3063 | } |
| 3064 | |
| 3065 | /* BE3 FW, by default, caps VF TX-rate to 100mbps. |
| 3066 | * Allow full available bandwidth |
| 3067 | */ |
| 3068 | if (BE3_chip(adapter) && !old_vfs) |
| 3069 | be_cmd_set_qos(adapter, 1000, vf+1); |
| 3070 | |
| 3071 | status = be_cmd_link_status_query(adapter, &lnk_speed, |
| 3072 | NULL, vf + 1); |
| 3073 | if (!status) |
| 3074 | vf_cfg->tx_rate = lnk_speed; |
| 3075 | |
| 3076 | status = be_cmd_get_hsw_config(adapter, &def_vlan, |
| 3077 | vf + 1, vf_cfg->if_handle, NULL); |
| 3078 | if (status) |
| 3079 | goto err; |
| 3080 | vf_cfg->def_vid = def_vlan; |
| 3081 | |
| 3082 | if (!old_vfs) |
| 3083 | be_cmd_enable_vf(adapter, vf + 1); |
| 3084 | } |
| 3085 | |
| 3086 | if (!old_vfs) { |
| 3087 | status = pci_enable_sriov(adapter->pdev, adapter->num_vfs); |
| 3088 | if (status) { |
| 3089 | dev_err(dev, "SRIOV enable failed\n"); |
| 3090 | adapter->num_vfs = 0; |
| 3091 | goto err; |
| 3092 | } |
| 3093 | } |
| 3094 | return 0; |
| 3095 | err: |
| 3096 | dev_err(dev, "VF setup failed\n"); |
| 3097 | be_vf_clear(adapter); |
| 3098 | return status; |
| 3099 | } |
| 3100 | |
| 3101 | /* On BE2/BE3 FW does not suggest the supported limits */ |
| 3102 | static void BEx_get_resources(struct be_adapter *adapter, |
| 3103 | struct be_resources *res) |
| 3104 | { |
| 3105 | struct pci_dev *pdev = adapter->pdev; |
| 3106 | bool use_sriov = false; |
| 3107 | |
| 3108 | if (BE3_chip(adapter) && sriov_want(adapter)) { |
| 3109 | int max_vfs; |
| 3110 | |
| 3111 | max_vfs = pci_sriov_get_totalvfs(pdev); |
| 3112 | res->max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0; |
| 3113 | use_sriov = res->max_vfs; |
| 3114 | } |
| 3115 | |
| 3116 | if (be_physfn(adapter)) |
| 3117 | res->max_uc_mac = BE_UC_PMAC_COUNT; |
| 3118 | else |
| 3119 | res->max_uc_mac = BE_VF_UC_PMAC_COUNT; |
| 3120 | |
| 3121 | if (adapter->function_mode & FLEX10_MODE) |
| 3122 | res->max_vlans = BE_NUM_VLANS_SUPPORTED/8; |
| 3123 | else if (adapter->function_mode & UMC_ENABLED) |
| 3124 | res->max_vlans = BE_UMC_NUM_VLANS_SUPPORTED; |
| 3125 | else |
| 3126 | res->max_vlans = BE_NUM_VLANS_SUPPORTED; |
| 3127 | res->max_mcast_mac = BE_MAX_MC; |
| 3128 | |
| 3129 | /* For BE3 1Gb ports, F/W does not properly support multiple TXQs */ |
| 3130 | if (BE2_chip(adapter) || use_sriov || be_is_mc(adapter) || |
| 3131 | !be_physfn(adapter) || (adapter->port_num > 1)) |
| 3132 | res->max_tx_qs = 1; |
| 3133 | else |
| 3134 | res->max_tx_qs = BE3_MAX_TX_QS; |
| 3135 | |
| 3136 | if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) && |
| 3137 | !use_sriov && be_physfn(adapter)) |
| 3138 | res->max_rss_qs = (adapter->be3_native) ? |
| 3139 | BE3_MAX_RSS_QS : BE2_MAX_RSS_QS; |
| 3140 | res->max_rx_qs = res->max_rss_qs + 1; |
| 3141 | |
| 3142 | res->max_evt_qs = be_physfn(adapter) ? BE3_MAX_EVT_QS : 1; |
| 3143 | |
| 3144 | res->if_cap_flags = BE_IF_CAP_FLAGS_WANT; |
| 3145 | if (!(adapter->function_caps & BE_FUNCTION_CAPS_RSS)) |
| 3146 | res->if_cap_flags &= ~BE_IF_FLAGS_RSS; |
| 3147 | } |
| 3148 | |
| 3149 | static void be_setup_init(struct be_adapter *adapter) |
| 3150 | { |
| 3151 | adapter->vlan_prio_bmap = 0xff; |
| 3152 | adapter->phy.link_speed = -1; |
| 3153 | adapter->if_handle = -1; |
| 3154 | adapter->be3_native = false; |
| 3155 | adapter->promiscuous = false; |
| 3156 | if (be_physfn(adapter)) |
| 3157 | adapter->cmd_privileges = MAX_PRIVILEGES; |
| 3158 | else |
| 3159 | adapter->cmd_privileges = MIN_PRIVILEGES; |
| 3160 | } |
| 3161 | |
| 3162 | static int be_get_resources(struct be_adapter *adapter) |
| 3163 | { |
| 3164 | struct device *dev = &adapter->pdev->dev; |
| 3165 | struct be_resources res = {0}; |
| 3166 | int status; |
| 3167 | |
| 3168 | if (BEx_chip(adapter)) { |
| 3169 | BEx_get_resources(adapter, &res); |
| 3170 | adapter->res = res; |
| 3171 | } |
| 3172 | |
| 3173 | /* For Lancer, SH etc read per-function resource limits from FW. |
| 3174 | * GET_FUNC_CONFIG returns per function guaranteed limits. |
| 3175 | * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits |
| 3176 | */ |
| 3177 | if (!BEx_chip(adapter)) { |
| 3178 | status = be_cmd_get_func_config(adapter, &res); |
| 3179 | if (status) |
| 3180 | return status; |
| 3181 | |
| 3182 | /* If RoCE may be enabled stash away half the EQs for RoCE */ |
| 3183 | if (be_roce_supported(adapter)) |
| 3184 | res.max_evt_qs /= 2; |
| 3185 | adapter->res = res; |
| 3186 | |
| 3187 | if (be_physfn(adapter)) { |
| 3188 | status = be_cmd_get_profile_config(adapter, &res, 0); |
| 3189 | if (status) |
| 3190 | return status; |
| 3191 | adapter->res.max_vfs = res.max_vfs; |
| 3192 | } |
| 3193 | |
| 3194 | dev_info(dev, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n", |
| 3195 | be_max_txqs(adapter), be_max_rxqs(adapter), |
| 3196 | be_max_rss(adapter), be_max_eqs(adapter), |
| 3197 | be_max_vfs(adapter)); |
| 3198 | dev_info(dev, "Max: uc-macs %d, mc-macs %d, vlans %d\n", |
| 3199 | be_max_uc(adapter), be_max_mc(adapter), |
| 3200 | be_max_vlans(adapter)); |
| 3201 | } |
| 3202 | |
| 3203 | return 0; |
| 3204 | } |
| 3205 | |
| 3206 | /* Routine to query per function resource limits */ |
| 3207 | static int be_get_config(struct be_adapter *adapter) |
| 3208 | { |
| 3209 | int status; |
| 3210 | |
| 3211 | status = be_cmd_query_fw_cfg(adapter, &adapter->port_num, |
| 3212 | &adapter->function_mode, |
| 3213 | &adapter->function_caps, |
| 3214 | &adapter->asic_rev); |
| 3215 | if (status) |
| 3216 | return status; |
| 3217 | |
| 3218 | status = be_get_resources(adapter); |
| 3219 | if (status) |
| 3220 | return status; |
| 3221 | |
| 3222 | /* primary mac needs 1 pmac entry */ |
| 3223 | adapter->pmac_id = kcalloc(be_max_uc(adapter) + 1, sizeof(u32), |
| 3224 | GFP_KERNEL); |
| 3225 | if (!adapter->pmac_id) |
| 3226 | return -ENOMEM; |
| 3227 | |
| 3228 | /* Sanitize cfg_num_qs based on HW and platform limits */ |
| 3229 | adapter->cfg_num_qs = min(adapter->cfg_num_qs, be_max_qs(adapter)); |
| 3230 | |
| 3231 | return 0; |
| 3232 | } |
| 3233 | |
| 3234 | static int be_mac_setup(struct be_adapter *adapter) |
| 3235 | { |
| 3236 | u8 mac[ETH_ALEN]; |
| 3237 | int status; |
| 3238 | |
| 3239 | if (is_zero_ether_addr(adapter->netdev->dev_addr)) { |
| 3240 | status = be_cmd_get_perm_mac(adapter, mac); |
| 3241 | if (status) |
| 3242 | return status; |
| 3243 | |
| 3244 | memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN); |
| 3245 | memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN); |
| 3246 | } else { |
| 3247 | /* Maybe the HW was reset; dev_addr must be re-programmed */ |
| 3248 | memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN); |
| 3249 | } |
| 3250 | |
| 3251 | /* On BE3 VFs this cmd may fail due to lack of privilege. |
| 3252 | * Ignore the failure as in this case pmac_id is fetched |
| 3253 | * in the IFACE_CREATE cmd. |
| 3254 | */ |
| 3255 | be_cmd_pmac_add(adapter, mac, adapter->if_handle, |
| 3256 | &adapter->pmac_id[0], 0); |
| 3257 | return 0; |
| 3258 | } |
| 3259 | |
| 3260 | static void be_schedule_worker(struct be_adapter *adapter) |
| 3261 | { |
| 3262 | schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000)); |
| 3263 | adapter->flags |= BE_FLAGS_WORKER_SCHEDULED; |
| 3264 | } |
| 3265 | |
| 3266 | static int be_setup_queues(struct be_adapter *adapter) |
| 3267 | { |
| 3268 | struct net_device *netdev = adapter->netdev; |
| 3269 | int status; |
| 3270 | |
| 3271 | status = be_evt_queues_create(adapter); |
| 3272 | if (status) |
| 3273 | goto err; |
| 3274 | |
| 3275 | status = be_tx_qs_create(adapter); |
| 3276 | if (status) |
| 3277 | goto err; |
| 3278 | |
| 3279 | status = be_rx_cqs_create(adapter); |
| 3280 | if (status) |
| 3281 | goto err; |
| 3282 | |
| 3283 | status = be_mcc_queues_create(adapter); |
| 3284 | if (status) |
| 3285 | goto err; |
| 3286 | |
| 3287 | status = netif_set_real_num_rx_queues(netdev, adapter->num_rx_qs); |
| 3288 | if (status) |
| 3289 | goto err; |
| 3290 | |
| 3291 | status = netif_set_real_num_tx_queues(netdev, adapter->num_tx_qs); |
| 3292 | if (status) |
| 3293 | goto err; |
| 3294 | |
| 3295 | return 0; |
| 3296 | err: |
| 3297 | dev_err(&adapter->pdev->dev, "queue_setup failed\n"); |
| 3298 | return status; |
| 3299 | } |
| 3300 | |
| 3301 | int be_update_queues(struct be_adapter *adapter) |
| 3302 | { |
| 3303 | struct net_device *netdev = adapter->netdev; |
| 3304 | int status; |
| 3305 | |
| 3306 | if (netif_running(netdev)) |
| 3307 | be_close(netdev); |
| 3308 | |
| 3309 | be_cancel_worker(adapter); |
| 3310 | |
| 3311 | /* If any vectors have been shared with RoCE we cannot re-program |
| 3312 | * the MSIx table. |
| 3313 | */ |
| 3314 | if (!adapter->num_msix_roce_vec) |
| 3315 | be_msix_disable(adapter); |
| 3316 | |
| 3317 | be_clear_queues(adapter); |
| 3318 | |
| 3319 | if (!msix_enabled(adapter)) { |
| 3320 | status = be_msix_enable(adapter); |
| 3321 | if (status) |
| 3322 | return status; |
| 3323 | } |
| 3324 | |
| 3325 | status = be_setup_queues(adapter); |
| 3326 | if (status) |
| 3327 | return status; |
| 3328 | |
| 3329 | be_schedule_worker(adapter); |
| 3330 | |
| 3331 | if (netif_running(netdev)) |
| 3332 | status = be_open(netdev); |
| 3333 | |
| 3334 | return status; |
| 3335 | } |
| 3336 | |
| 3337 | static int be_setup(struct be_adapter *adapter) |
| 3338 | { |
| 3339 | struct device *dev = &adapter->pdev->dev; |
| 3340 | u32 tx_fc, rx_fc, en_flags; |
| 3341 | int status; |
| 3342 | |
| 3343 | be_setup_init(adapter); |
| 3344 | |
| 3345 | if (!lancer_chip(adapter)) |
| 3346 | be_cmd_req_native_mode(adapter); |
| 3347 | |
| 3348 | status = be_get_config(adapter); |
| 3349 | if (status) |
| 3350 | goto err; |
| 3351 | |
| 3352 | status = be_msix_enable(adapter); |
| 3353 | if (status) |
| 3354 | goto err; |
| 3355 | |
| 3356 | en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST | |
| 3357 | BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS; |
| 3358 | if (adapter->function_caps & BE_FUNCTION_CAPS_RSS) |
| 3359 | en_flags |= BE_IF_FLAGS_RSS; |
| 3360 | en_flags = en_flags & be_if_cap_flags(adapter); |
| 3361 | status = be_cmd_if_create(adapter, be_if_cap_flags(adapter), en_flags, |
| 3362 | &adapter->if_handle, 0); |
| 3363 | if (status) |
| 3364 | goto err; |
| 3365 | |
| 3366 | /* Updating real_num_tx/rx_queues() requires rtnl_lock() */ |
| 3367 | rtnl_lock(); |
| 3368 | status = be_setup_queues(adapter); |
| 3369 | rtnl_unlock(); |
| 3370 | if (status) |
| 3371 | goto err; |
| 3372 | |
| 3373 | be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0); |
| 3374 | /* In UMC mode FW does not return right privileges. |
| 3375 | * Override with correct privilege equivalent to PF. |
| 3376 | */ |
| 3377 | if (be_is_mc(adapter)) |
| 3378 | adapter->cmd_privileges = MAX_PRIVILEGES; |
| 3379 | |
| 3380 | status = be_mac_setup(adapter); |
| 3381 | if (status) |
| 3382 | goto err; |
| 3383 | |
| 3384 | be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash); |
| 3385 | |
| 3386 | if (BE2_chip(adapter) && fw_major_num(adapter->fw_ver) < 4) { |
| 3387 | dev_err(dev, "Firmware on card is old(%s), IRQs may not work.", |
| 3388 | adapter->fw_ver); |
| 3389 | dev_err(dev, "Please upgrade firmware to version >= 4.0\n"); |
| 3390 | } |
| 3391 | |
| 3392 | if (adapter->vlans_added) |
| 3393 | be_vid_config(adapter); |
| 3394 | |
| 3395 | be_set_rx_mode(adapter->netdev); |
| 3396 | |
| 3397 | be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc); |
| 3398 | |
| 3399 | if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc) |
| 3400 | be_cmd_set_flow_control(adapter, adapter->tx_fc, |
| 3401 | adapter->rx_fc); |
| 3402 | |
| 3403 | if (sriov_want(adapter)) { |
| 3404 | if (be_max_vfs(adapter)) |
| 3405 | be_vf_setup(adapter); |
| 3406 | else |
| 3407 | dev_warn(dev, "device doesn't support SRIOV\n"); |
| 3408 | } |
| 3409 | |
| 3410 | status = be_cmd_get_phy_info(adapter); |
| 3411 | if (!status && be_pause_supported(adapter)) |
| 3412 | adapter->phy.fc_autoneg = 1; |
| 3413 | |
| 3414 | be_schedule_worker(adapter); |
| 3415 | return 0; |
| 3416 | err: |
| 3417 | be_clear(adapter); |
| 3418 | return status; |
| 3419 | } |
| 3420 | |
| 3421 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 3422 | static void be_netpoll(struct net_device *netdev) |
| 3423 | { |
| 3424 | struct be_adapter *adapter = netdev_priv(netdev); |
| 3425 | struct be_eq_obj *eqo; |
| 3426 | int i; |
| 3427 | |
| 3428 | for_all_evt_queues(adapter, eqo, i) { |
| 3429 | be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0); |
| 3430 | napi_schedule(&eqo->napi); |
| 3431 | } |
| 3432 | |
| 3433 | return; |
| 3434 | } |
| 3435 | #endif |
| 3436 | |
| 3437 | #define FW_FILE_HDR_SIGN "ServerEngines Corp. " |
| 3438 | static char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "}; |
| 3439 | |
| 3440 | static bool be_flash_redboot(struct be_adapter *adapter, |
| 3441 | const u8 *p, u32 img_start, int image_size, |
| 3442 | int hdr_size) |
| 3443 | { |
| 3444 | u32 crc_offset; |
| 3445 | u8 flashed_crc[4]; |
| 3446 | int status; |
| 3447 | |
| 3448 | crc_offset = hdr_size + img_start + image_size - 4; |
| 3449 | |
| 3450 | p += crc_offset; |
| 3451 | |
| 3452 | status = be_cmd_get_flash_crc(adapter, flashed_crc, |
| 3453 | (image_size - 4)); |
| 3454 | if (status) { |
| 3455 | dev_err(&adapter->pdev->dev, |
| 3456 | "could not get crc from flash, not flashing redboot\n"); |
| 3457 | return false; |
| 3458 | } |
| 3459 | |
| 3460 | /*update redboot only if crc does not match*/ |
| 3461 | if (!memcmp(flashed_crc, p, 4)) |
| 3462 | return false; |
| 3463 | else |
| 3464 | return true; |
| 3465 | } |
| 3466 | |
| 3467 | static bool phy_flashing_required(struct be_adapter *adapter) |
| 3468 | { |
| 3469 | return (adapter->phy.phy_type == TN_8022 && |
| 3470 | adapter->phy.interface_type == PHY_TYPE_BASET_10GB); |
| 3471 | } |
| 3472 | |
| 3473 | static bool is_comp_in_ufi(struct be_adapter *adapter, |
| 3474 | struct flash_section_info *fsec, int type) |
| 3475 | { |
| 3476 | int i = 0, img_type = 0; |
| 3477 | struct flash_section_info_g2 *fsec_g2 = NULL; |
| 3478 | |
| 3479 | if (BE2_chip(adapter)) |
| 3480 | fsec_g2 = (struct flash_section_info_g2 *)fsec; |
| 3481 | |
| 3482 | for (i = 0; i < MAX_FLASH_COMP; i++) { |
| 3483 | if (fsec_g2) |
| 3484 | img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type); |
| 3485 | else |
| 3486 | img_type = le32_to_cpu(fsec->fsec_entry[i].type); |
| 3487 | |
| 3488 | if (img_type == type) |
| 3489 | return true; |
| 3490 | } |
| 3491 | return false; |
| 3492 | |
| 3493 | } |
| 3494 | |
| 3495 | static struct flash_section_info *get_fsec_info(struct be_adapter *adapter, |
| 3496 | int header_size, |
| 3497 | const struct firmware *fw) |
| 3498 | { |
| 3499 | struct flash_section_info *fsec = NULL; |
| 3500 | const u8 *p = fw->data; |
| 3501 | |
| 3502 | p += header_size; |
| 3503 | while (p < (fw->data + fw->size)) { |
| 3504 | fsec = (struct flash_section_info *)p; |
| 3505 | if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie))) |
| 3506 | return fsec; |
| 3507 | p += 32; |
| 3508 | } |
| 3509 | return NULL; |
| 3510 | } |
| 3511 | |
| 3512 | static int be_flash(struct be_adapter *adapter, const u8 *img, |
| 3513 | struct be_dma_mem *flash_cmd, int optype, int img_size) |
| 3514 | { |
| 3515 | u32 total_bytes = 0, flash_op, num_bytes = 0; |
| 3516 | int status = 0; |
| 3517 | struct be_cmd_write_flashrom *req = flash_cmd->va; |
| 3518 | |
| 3519 | total_bytes = img_size; |
| 3520 | while (total_bytes) { |
| 3521 | num_bytes = min_t(u32, 32*1024, total_bytes); |
| 3522 | |
| 3523 | total_bytes -= num_bytes; |
| 3524 | |
| 3525 | if (!total_bytes) { |
| 3526 | if (optype == OPTYPE_PHY_FW) |
| 3527 | flash_op = FLASHROM_OPER_PHY_FLASH; |
| 3528 | else |
| 3529 | flash_op = FLASHROM_OPER_FLASH; |
| 3530 | } else { |
| 3531 | if (optype == OPTYPE_PHY_FW) |
| 3532 | flash_op = FLASHROM_OPER_PHY_SAVE; |
| 3533 | else |
| 3534 | flash_op = FLASHROM_OPER_SAVE; |
| 3535 | } |
| 3536 | |
| 3537 | memcpy(req->data_buf, img, num_bytes); |
| 3538 | img += num_bytes; |
| 3539 | status = be_cmd_write_flashrom(adapter, flash_cmd, optype, |
| 3540 | flash_op, num_bytes); |
| 3541 | if (status) { |
| 3542 | if (status == ILLEGAL_IOCTL_REQ && |
| 3543 | optype == OPTYPE_PHY_FW) |
| 3544 | break; |
| 3545 | dev_err(&adapter->pdev->dev, |
| 3546 | "cmd to write to flash rom failed.\n"); |
| 3547 | return status; |
| 3548 | } |
| 3549 | } |
| 3550 | return 0; |
| 3551 | } |
| 3552 | |
| 3553 | /* For BE2, BE3 and BE3-R */ |
| 3554 | static int be_flash_BEx(struct be_adapter *adapter, |
| 3555 | const struct firmware *fw, |
| 3556 | struct be_dma_mem *flash_cmd, |
| 3557 | int num_of_images) |
| 3558 | |
| 3559 | { |
| 3560 | int status = 0, i, filehdr_size = 0; |
| 3561 | int img_hdrs_size = (num_of_images * sizeof(struct image_hdr)); |
| 3562 | const u8 *p = fw->data; |
| 3563 | const struct flash_comp *pflashcomp; |
| 3564 | int num_comp, redboot; |
| 3565 | struct flash_section_info *fsec = NULL; |
| 3566 | |
| 3567 | struct flash_comp gen3_flash_types[] = { |
| 3568 | { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE, |
| 3569 | FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI}, |
| 3570 | { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT, |
| 3571 | FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE}, |
| 3572 | { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS, |
| 3573 | FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI}, |
| 3574 | { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS, |
| 3575 | FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE}, |
| 3576 | { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS, |
| 3577 | FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE}, |
| 3578 | { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP, |
| 3579 | FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI}, |
| 3580 | { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE, |
| 3581 | FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE}, |
| 3582 | { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP, |
| 3583 | FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE}, |
| 3584 | { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW, |
| 3585 | FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI}, |
| 3586 | { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW, |
| 3587 | FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY} |
| 3588 | }; |
| 3589 | |
| 3590 | struct flash_comp gen2_flash_types[] = { |
| 3591 | { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE, |
| 3592 | FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI}, |
| 3593 | { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT, |
| 3594 | FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE}, |
| 3595 | { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS, |
| 3596 | FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI}, |
| 3597 | { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS, |
| 3598 | FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE}, |
| 3599 | { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS, |
| 3600 | FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE}, |
| 3601 | { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP, |
| 3602 | FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI}, |
| 3603 | { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE, |
| 3604 | FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE}, |
| 3605 | { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP, |
| 3606 | FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE} |
| 3607 | }; |
| 3608 | |
| 3609 | if (BE3_chip(adapter)) { |
| 3610 | pflashcomp = gen3_flash_types; |
| 3611 | filehdr_size = sizeof(struct flash_file_hdr_g3); |
| 3612 | num_comp = ARRAY_SIZE(gen3_flash_types); |
| 3613 | } else { |
| 3614 | pflashcomp = gen2_flash_types; |
| 3615 | filehdr_size = sizeof(struct flash_file_hdr_g2); |
| 3616 | num_comp = ARRAY_SIZE(gen2_flash_types); |
| 3617 | } |
| 3618 | |
| 3619 | /* Get flash section info*/ |
| 3620 | fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw); |
| 3621 | if (!fsec) { |
| 3622 | dev_err(&adapter->pdev->dev, |
| 3623 | "Invalid Cookie. UFI corrupted ?\n"); |
| 3624 | return -1; |
| 3625 | } |
| 3626 | for (i = 0; i < num_comp; i++) { |
| 3627 | if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type)) |
| 3628 | continue; |
| 3629 | |
| 3630 | if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) && |
| 3631 | memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0) |
| 3632 | continue; |
| 3633 | |
| 3634 | if (pflashcomp[i].optype == OPTYPE_PHY_FW && |
| 3635 | !phy_flashing_required(adapter)) |
| 3636 | continue; |
| 3637 | |
| 3638 | if (pflashcomp[i].optype == OPTYPE_REDBOOT) { |
| 3639 | redboot = be_flash_redboot(adapter, fw->data, |
| 3640 | pflashcomp[i].offset, pflashcomp[i].size, |
| 3641 | filehdr_size + img_hdrs_size); |
| 3642 | if (!redboot) |
| 3643 | continue; |
| 3644 | } |
| 3645 | |
| 3646 | p = fw->data; |
| 3647 | p += filehdr_size + pflashcomp[i].offset + img_hdrs_size; |
| 3648 | if (p + pflashcomp[i].size > fw->data + fw->size) |
| 3649 | return -1; |
| 3650 | |
| 3651 | status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype, |
| 3652 | pflashcomp[i].size); |
| 3653 | if (status) { |
| 3654 | dev_err(&adapter->pdev->dev, |
| 3655 | "Flashing section type %d failed.\n", |
| 3656 | pflashcomp[i].img_type); |
| 3657 | return status; |
| 3658 | } |
| 3659 | } |
| 3660 | return 0; |
| 3661 | } |
| 3662 | |
| 3663 | static int be_flash_skyhawk(struct be_adapter *adapter, |
| 3664 | const struct firmware *fw, |
| 3665 | struct be_dma_mem *flash_cmd, int num_of_images) |
| 3666 | { |
| 3667 | int status = 0, i, filehdr_size = 0; |
| 3668 | int img_offset, img_size, img_optype, redboot; |
| 3669 | int img_hdrs_size = num_of_images * sizeof(struct image_hdr); |
| 3670 | const u8 *p = fw->data; |
| 3671 | struct flash_section_info *fsec = NULL; |
| 3672 | |
| 3673 | filehdr_size = sizeof(struct flash_file_hdr_g3); |
| 3674 | fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw); |
| 3675 | if (!fsec) { |
| 3676 | dev_err(&adapter->pdev->dev, |
| 3677 | "Invalid Cookie. UFI corrupted ?\n"); |
| 3678 | return -1; |
| 3679 | } |
| 3680 | |
| 3681 | for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) { |
| 3682 | img_offset = le32_to_cpu(fsec->fsec_entry[i].offset); |
| 3683 | img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size); |
| 3684 | |
| 3685 | switch (le32_to_cpu(fsec->fsec_entry[i].type)) { |
| 3686 | case IMAGE_FIRMWARE_iSCSI: |
| 3687 | img_optype = OPTYPE_ISCSI_ACTIVE; |
| 3688 | break; |
| 3689 | case IMAGE_BOOT_CODE: |
| 3690 | img_optype = OPTYPE_REDBOOT; |
| 3691 | break; |
| 3692 | case IMAGE_OPTION_ROM_ISCSI: |
| 3693 | img_optype = OPTYPE_BIOS; |
| 3694 | break; |
| 3695 | case IMAGE_OPTION_ROM_PXE: |
| 3696 | img_optype = OPTYPE_PXE_BIOS; |
| 3697 | break; |
| 3698 | case IMAGE_OPTION_ROM_FCoE: |
| 3699 | img_optype = OPTYPE_FCOE_BIOS; |
| 3700 | break; |
| 3701 | case IMAGE_FIRMWARE_BACKUP_iSCSI: |
| 3702 | img_optype = OPTYPE_ISCSI_BACKUP; |
| 3703 | break; |
| 3704 | case IMAGE_NCSI: |
| 3705 | img_optype = OPTYPE_NCSI_FW; |
| 3706 | break; |
| 3707 | default: |
| 3708 | continue; |
| 3709 | } |
| 3710 | |
| 3711 | if (img_optype == OPTYPE_REDBOOT) { |
| 3712 | redboot = be_flash_redboot(adapter, fw->data, |
| 3713 | img_offset, img_size, |
| 3714 | filehdr_size + img_hdrs_size); |
| 3715 | if (!redboot) |
| 3716 | continue; |
| 3717 | } |
| 3718 | |
| 3719 | p = fw->data; |
| 3720 | p += filehdr_size + img_offset + img_hdrs_size; |
| 3721 | if (p + img_size > fw->data + fw->size) |
| 3722 | return -1; |
| 3723 | |
| 3724 | status = be_flash(adapter, p, flash_cmd, img_optype, img_size); |
| 3725 | if (status) { |
| 3726 | dev_err(&adapter->pdev->dev, |
| 3727 | "Flashing section type %d failed.\n", |
| 3728 | fsec->fsec_entry[i].type); |
| 3729 | return status; |
| 3730 | } |
| 3731 | } |
| 3732 | return 0; |
| 3733 | } |
| 3734 | |
| 3735 | static int lancer_fw_download(struct be_adapter *adapter, |
| 3736 | const struct firmware *fw) |
| 3737 | { |
| 3738 | #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024) |
| 3739 | #define LANCER_FW_DOWNLOAD_LOCATION "/prg" |
| 3740 | struct be_dma_mem flash_cmd; |
| 3741 | const u8 *data_ptr = NULL; |
| 3742 | u8 *dest_image_ptr = NULL; |
| 3743 | size_t image_size = 0; |
| 3744 | u32 chunk_size = 0; |
| 3745 | u32 data_written = 0; |
| 3746 | u32 offset = 0; |
| 3747 | int status = 0; |
| 3748 | u8 add_status = 0; |
| 3749 | u8 change_status; |
| 3750 | |
| 3751 | if (!IS_ALIGNED(fw->size, sizeof(u32))) { |
| 3752 | dev_err(&adapter->pdev->dev, |
| 3753 | "FW Image not properly aligned. " |
| 3754 | "Length must be 4 byte aligned.\n"); |
| 3755 | status = -EINVAL; |
| 3756 | goto lancer_fw_exit; |
| 3757 | } |
| 3758 | |
| 3759 | flash_cmd.size = sizeof(struct lancer_cmd_req_write_object) |
| 3760 | + LANCER_FW_DOWNLOAD_CHUNK; |
| 3761 | flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size, |
| 3762 | &flash_cmd.dma, GFP_KERNEL); |
| 3763 | if (!flash_cmd.va) { |
| 3764 | status = -ENOMEM; |
| 3765 | goto lancer_fw_exit; |
| 3766 | } |
| 3767 | |
| 3768 | dest_image_ptr = flash_cmd.va + |
| 3769 | sizeof(struct lancer_cmd_req_write_object); |
| 3770 | image_size = fw->size; |
| 3771 | data_ptr = fw->data; |
| 3772 | |
| 3773 | while (image_size) { |
| 3774 | chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK); |
| 3775 | |
| 3776 | /* Copy the image chunk content. */ |
| 3777 | memcpy(dest_image_ptr, data_ptr, chunk_size); |
| 3778 | |
| 3779 | status = lancer_cmd_write_object(adapter, &flash_cmd, |
| 3780 | chunk_size, offset, |
| 3781 | LANCER_FW_DOWNLOAD_LOCATION, |
| 3782 | &data_written, &change_status, |
| 3783 | &add_status); |
| 3784 | if (status) |
| 3785 | break; |
| 3786 | |
| 3787 | offset += data_written; |
| 3788 | data_ptr += data_written; |
| 3789 | image_size -= data_written; |
| 3790 | } |
| 3791 | |
| 3792 | if (!status) { |
| 3793 | /* Commit the FW written */ |
| 3794 | status = lancer_cmd_write_object(adapter, &flash_cmd, |
| 3795 | 0, offset, |
| 3796 | LANCER_FW_DOWNLOAD_LOCATION, |
| 3797 | &data_written, &change_status, |
| 3798 | &add_status); |
| 3799 | } |
| 3800 | |
| 3801 | dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va, |
| 3802 | flash_cmd.dma); |
| 3803 | if (status) { |
| 3804 | dev_err(&adapter->pdev->dev, |
| 3805 | "Firmware load error. " |
| 3806 | "Status code: 0x%x Additional Status: 0x%x\n", |
| 3807 | status, add_status); |
| 3808 | goto lancer_fw_exit; |
| 3809 | } |
| 3810 | |
| 3811 | if (change_status == LANCER_FW_RESET_NEEDED) { |
| 3812 | status = lancer_physdev_ctrl(adapter, |
| 3813 | PHYSDEV_CONTROL_FW_RESET_MASK); |
| 3814 | if (status) { |
| 3815 | dev_err(&adapter->pdev->dev, |
| 3816 | "Adapter busy for FW reset.\n" |
| 3817 | "New FW will not be active.\n"); |
| 3818 | goto lancer_fw_exit; |
| 3819 | } |
| 3820 | } else if (change_status != LANCER_NO_RESET_NEEDED) { |
| 3821 | dev_err(&adapter->pdev->dev, |
| 3822 | "System reboot required for new FW" |
| 3823 | " to be active\n"); |
| 3824 | } |
| 3825 | |
| 3826 | dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n"); |
| 3827 | lancer_fw_exit: |
| 3828 | return status; |
| 3829 | } |
| 3830 | |
| 3831 | #define UFI_TYPE2 2 |
| 3832 | #define UFI_TYPE3 3 |
| 3833 | #define UFI_TYPE3R 10 |
| 3834 | #define UFI_TYPE4 4 |
| 3835 | static int be_get_ufi_type(struct be_adapter *adapter, |
| 3836 | struct flash_file_hdr_g3 *fhdr) |
| 3837 | { |
| 3838 | if (fhdr == NULL) |
| 3839 | goto be_get_ufi_exit; |
| 3840 | |
| 3841 | if (skyhawk_chip(adapter) && fhdr->build[0] == '4') |
| 3842 | return UFI_TYPE4; |
| 3843 | else if (BE3_chip(adapter) && fhdr->build[0] == '3') { |
| 3844 | if (fhdr->asic_type_rev == 0x10) |
| 3845 | return UFI_TYPE3R; |
| 3846 | else |
| 3847 | return UFI_TYPE3; |
| 3848 | } else if (BE2_chip(adapter) && fhdr->build[0] == '2') |
| 3849 | return UFI_TYPE2; |
| 3850 | |
| 3851 | be_get_ufi_exit: |
| 3852 | dev_err(&adapter->pdev->dev, |
| 3853 | "UFI and Interface are not compatible for flashing\n"); |
| 3854 | return -1; |
| 3855 | } |
| 3856 | |
| 3857 | static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw) |
| 3858 | { |
| 3859 | struct flash_file_hdr_g3 *fhdr3; |
| 3860 | struct image_hdr *img_hdr_ptr = NULL; |
| 3861 | struct be_dma_mem flash_cmd; |
| 3862 | const u8 *p; |
| 3863 | int status = 0, i = 0, num_imgs = 0, ufi_type = 0; |
| 3864 | |
| 3865 | flash_cmd.size = sizeof(struct be_cmd_write_flashrom); |
| 3866 | flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size, |
| 3867 | &flash_cmd.dma, GFP_KERNEL); |
| 3868 | if (!flash_cmd.va) { |
| 3869 | status = -ENOMEM; |
| 3870 | goto be_fw_exit; |
| 3871 | } |
| 3872 | |
| 3873 | p = fw->data; |
| 3874 | fhdr3 = (struct flash_file_hdr_g3 *)p; |
| 3875 | |
| 3876 | ufi_type = be_get_ufi_type(adapter, fhdr3); |
| 3877 | |
| 3878 | num_imgs = le32_to_cpu(fhdr3->num_imgs); |
| 3879 | for (i = 0; i < num_imgs; i++) { |
| 3880 | img_hdr_ptr = (struct image_hdr *)(fw->data + |
| 3881 | (sizeof(struct flash_file_hdr_g3) + |
| 3882 | i * sizeof(struct image_hdr))); |
| 3883 | if (le32_to_cpu(img_hdr_ptr->imageid) == 1) { |
| 3884 | switch (ufi_type) { |
| 3885 | case UFI_TYPE4: |
| 3886 | status = be_flash_skyhawk(adapter, fw, |
| 3887 | &flash_cmd, num_imgs); |
| 3888 | break; |
| 3889 | case UFI_TYPE3R: |
| 3890 | status = be_flash_BEx(adapter, fw, &flash_cmd, |
| 3891 | num_imgs); |
| 3892 | break; |
| 3893 | case UFI_TYPE3: |
| 3894 | /* Do not flash this ufi on BE3-R cards */ |
| 3895 | if (adapter->asic_rev < 0x10) |
| 3896 | status = be_flash_BEx(adapter, fw, |
| 3897 | &flash_cmd, |
| 3898 | num_imgs); |
| 3899 | else { |
| 3900 | status = -1; |
| 3901 | dev_err(&adapter->pdev->dev, |
| 3902 | "Can't load BE3 UFI on BE3R\n"); |
| 3903 | } |
| 3904 | } |
| 3905 | } |
| 3906 | } |
| 3907 | |
| 3908 | if (ufi_type == UFI_TYPE2) |
| 3909 | status = be_flash_BEx(adapter, fw, &flash_cmd, 0); |
| 3910 | else if (ufi_type == -1) |
| 3911 | status = -1; |
| 3912 | |
| 3913 | dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va, |
| 3914 | flash_cmd.dma); |
| 3915 | if (status) { |
| 3916 | dev_err(&adapter->pdev->dev, "Firmware load error\n"); |
| 3917 | goto be_fw_exit; |
| 3918 | } |
| 3919 | |
| 3920 | dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n"); |
| 3921 | |
| 3922 | be_fw_exit: |
| 3923 | return status; |
| 3924 | } |
| 3925 | |
| 3926 | int be_load_fw(struct be_adapter *adapter, u8 *fw_file) |
| 3927 | { |
| 3928 | const struct firmware *fw; |
| 3929 | int status; |
| 3930 | |
| 3931 | if (!netif_running(adapter->netdev)) { |
| 3932 | dev_err(&adapter->pdev->dev, |
| 3933 | "Firmware load not allowed (interface is down)\n"); |
| 3934 | return -1; |
| 3935 | } |
| 3936 | |
| 3937 | status = request_firmware(&fw, fw_file, &adapter->pdev->dev); |
| 3938 | if (status) |
| 3939 | goto fw_exit; |
| 3940 | |
| 3941 | dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file); |
| 3942 | |
| 3943 | if (lancer_chip(adapter)) |
| 3944 | status = lancer_fw_download(adapter, fw); |
| 3945 | else |
| 3946 | status = be_fw_download(adapter, fw); |
| 3947 | |
| 3948 | if (!status) |
| 3949 | be_cmd_get_fw_ver(adapter, adapter->fw_ver, |
| 3950 | adapter->fw_on_flash); |
| 3951 | |
| 3952 | fw_exit: |
| 3953 | release_firmware(fw); |
| 3954 | return status; |
| 3955 | } |
| 3956 | |
| 3957 | static int be_ndo_bridge_setlink(struct net_device *dev, |
| 3958 | struct nlmsghdr *nlh) |
| 3959 | { |
| 3960 | struct be_adapter *adapter = netdev_priv(dev); |
| 3961 | struct nlattr *attr, *br_spec; |
| 3962 | int rem; |
| 3963 | int status = 0; |
| 3964 | u16 mode = 0; |
| 3965 | |
| 3966 | if (!sriov_enabled(adapter)) |
| 3967 | return -EOPNOTSUPP; |
| 3968 | |
| 3969 | br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); |
| 3970 | |
| 3971 | nla_for_each_nested(attr, br_spec, rem) { |
| 3972 | if (nla_type(attr) != IFLA_BRIDGE_MODE) |
| 3973 | continue; |
| 3974 | |
| 3975 | mode = nla_get_u16(attr); |
| 3976 | if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB) |
| 3977 | return -EINVAL; |
| 3978 | |
| 3979 | status = be_cmd_set_hsw_config(adapter, 0, 0, |
| 3980 | adapter->if_handle, |
| 3981 | mode == BRIDGE_MODE_VEPA ? |
| 3982 | PORT_FWD_TYPE_VEPA : |
| 3983 | PORT_FWD_TYPE_VEB); |
| 3984 | if (status) |
| 3985 | goto err; |
| 3986 | |
| 3987 | dev_info(&adapter->pdev->dev, "enabled switch mode: %s\n", |
| 3988 | mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB"); |
| 3989 | |
| 3990 | return status; |
| 3991 | } |
| 3992 | err: |
| 3993 | dev_err(&adapter->pdev->dev, "Failed to set switch mode %s\n", |
| 3994 | mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB"); |
| 3995 | |
| 3996 | return status; |
| 3997 | } |
| 3998 | |
| 3999 | static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, |
| 4000 | struct net_device *dev, |
| 4001 | u32 filter_mask) |
| 4002 | { |
| 4003 | struct be_adapter *adapter = netdev_priv(dev); |
| 4004 | int status = 0; |
| 4005 | u8 hsw_mode; |
| 4006 | |
| 4007 | if (!sriov_enabled(adapter)) |
| 4008 | return 0; |
| 4009 | |
| 4010 | /* BE and Lancer chips support VEB mode only */ |
| 4011 | if (BEx_chip(adapter) || lancer_chip(adapter)) { |
| 4012 | hsw_mode = PORT_FWD_TYPE_VEB; |
| 4013 | } else { |
| 4014 | status = be_cmd_get_hsw_config(adapter, NULL, 0, |
| 4015 | adapter->if_handle, &hsw_mode); |
| 4016 | if (status) |
| 4017 | return 0; |
| 4018 | } |
| 4019 | |
| 4020 | return ndo_dflt_bridge_getlink(skb, pid, seq, dev, |
| 4021 | hsw_mode == PORT_FWD_TYPE_VEPA ? |
| 4022 | BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB); |
| 4023 | } |
| 4024 | |
| 4025 | static const struct net_device_ops be_netdev_ops = { |
| 4026 | .ndo_open = be_open, |
| 4027 | .ndo_stop = be_close, |
| 4028 | .ndo_start_xmit = be_xmit, |
| 4029 | .ndo_set_rx_mode = be_set_rx_mode, |
| 4030 | .ndo_set_mac_address = be_mac_addr_set, |
| 4031 | .ndo_change_mtu = be_change_mtu, |
| 4032 | .ndo_get_stats64 = be_get_stats64, |
| 4033 | .ndo_validate_addr = eth_validate_addr, |
| 4034 | .ndo_vlan_rx_add_vid = be_vlan_add_vid, |
| 4035 | .ndo_vlan_rx_kill_vid = be_vlan_rem_vid, |
| 4036 | .ndo_set_vf_mac = be_set_vf_mac, |
| 4037 | .ndo_set_vf_vlan = be_set_vf_vlan, |
| 4038 | .ndo_set_vf_tx_rate = be_set_vf_tx_rate, |
| 4039 | .ndo_get_vf_config = be_get_vf_config, |
| 4040 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 4041 | .ndo_poll_controller = be_netpoll, |
| 4042 | #endif |
| 4043 | .ndo_bridge_setlink = be_ndo_bridge_setlink, |
| 4044 | .ndo_bridge_getlink = be_ndo_bridge_getlink, |
| 4045 | #ifdef CONFIG_NET_RX_BUSY_POLL |
| 4046 | .ndo_busy_poll = be_busy_poll |
| 4047 | #endif |
| 4048 | }; |
| 4049 | |
| 4050 | static void be_netdev_init(struct net_device *netdev) |
| 4051 | { |
| 4052 | struct be_adapter *adapter = netdev_priv(netdev); |
| 4053 | |
| 4054 | netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | |
| 4055 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | |
| 4056 | NETIF_F_HW_VLAN_CTAG_TX; |
| 4057 | if (be_multi_rxq(adapter)) |
| 4058 | netdev->hw_features |= NETIF_F_RXHASH; |
| 4059 | |
| 4060 | netdev->features |= netdev->hw_features | |
| 4061 | NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER; |
| 4062 | |
| 4063 | netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | |
| 4064 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
| 4065 | |
| 4066 | netdev->priv_flags |= IFF_UNICAST_FLT; |
| 4067 | |
| 4068 | netdev->flags |= IFF_MULTICAST; |
| 4069 | |
| 4070 | netif_set_gso_max_size(netdev, 65535 - ETH_HLEN); |
| 4071 | |
| 4072 | netdev->netdev_ops = &be_netdev_ops; |
| 4073 | |
| 4074 | SET_ETHTOOL_OPS(netdev, &be_ethtool_ops); |
| 4075 | } |
| 4076 | |
| 4077 | static void be_unmap_pci_bars(struct be_adapter *adapter) |
| 4078 | { |
| 4079 | if (adapter->csr) |
| 4080 | pci_iounmap(adapter->pdev, adapter->csr); |
| 4081 | if (adapter->db) |
| 4082 | pci_iounmap(adapter->pdev, adapter->db); |
| 4083 | } |
| 4084 | |
| 4085 | static int db_bar(struct be_adapter *adapter) |
| 4086 | { |
| 4087 | if (lancer_chip(adapter) || !be_physfn(adapter)) |
| 4088 | return 0; |
| 4089 | else |
| 4090 | return 4; |
| 4091 | } |
| 4092 | |
| 4093 | static int be_roce_map_pci_bars(struct be_adapter *adapter) |
| 4094 | { |
| 4095 | if (skyhawk_chip(adapter)) { |
| 4096 | adapter->roce_db.size = 4096; |
| 4097 | adapter->roce_db.io_addr = pci_resource_start(adapter->pdev, |
| 4098 | db_bar(adapter)); |
| 4099 | adapter->roce_db.total_size = pci_resource_len(adapter->pdev, |
| 4100 | db_bar(adapter)); |
| 4101 | } |
| 4102 | return 0; |
| 4103 | } |
| 4104 | |
| 4105 | static int be_map_pci_bars(struct be_adapter *adapter) |
| 4106 | { |
| 4107 | u8 __iomem *addr; |
| 4108 | |
| 4109 | if (BEx_chip(adapter) && be_physfn(adapter)) { |
| 4110 | adapter->csr = pci_iomap(adapter->pdev, 2, 0); |
| 4111 | if (adapter->csr == NULL) |
| 4112 | return -ENOMEM; |
| 4113 | } |
| 4114 | |
| 4115 | addr = pci_iomap(adapter->pdev, db_bar(adapter), 0); |
| 4116 | if (addr == NULL) |
| 4117 | goto pci_map_err; |
| 4118 | adapter->db = addr; |
| 4119 | |
| 4120 | be_roce_map_pci_bars(adapter); |
| 4121 | return 0; |
| 4122 | |
| 4123 | pci_map_err: |
| 4124 | be_unmap_pci_bars(adapter); |
| 4125 | return -ENOMEM; |
| 4126 | } |
| 4127 | |
| 4128 | static void be_ctrl_cleanup(struct be_adapter *adapter) |
| 4129 | { |
| 4130 | struct be_dma_mem *mem = &adapter->mbox_mem_alloced; |
| 4131 | |
| 4132 | be_unmap_pci_bars(adapter); |
| 4133 | |
| 4134 | if (mem->va) |
| 4135 | dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va, |
| 4136 | mem->dma); |
| 4137 | |
| 4138 | mem = &adapter->rx_filter; |
| 4139 | if (mem->va) |
| 4140 | dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va, |
| 4141 | mem->dma); |
| 4142 | } |
| 4143 | |
| 4144 | static int be_ctrl_init(struct be_adapter *adapter) |
| 4145 | { |
| 4146 | struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced; |
| 4147 | struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem; |
| 4148 | struct be_dma_mem *rx_filter = &adapter->rx_filter; |
| 4149 | u32 sli_intf; |
| 4150 | int status; |
| 4151 | |
| 4152 | pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf); |
| 4153 | adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >> |
| 4154 | SLI_INTF_FAMILY_SHIFT; |
| 4155 | adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0; |
| 4156 | |
| 4157 | status = be_map_pci_bars(adapter); |
| 4158 | if (status) |
| 4159 | goto done; |
| 4160 | |
| 4161 | mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16; |
| 4162 | mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev, |
| 4163 | mbox_mem_alloc->size, |
| 4164 | &mbox_mem_alloc->dma, |
| 4165 | GFP_KERNEL); |
| 4166 | if (!mbox_mem_alloc->va) { |
| 4167 | status = -ENOMEM; |
| 4168 | goto unmap_pci_bars; |
| 4169 | } |
| 4170 | mbox_mem_align->size = sizeof(struct be_mcc_mailbox); |
| 4171 | mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16); |
| 4172 | mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16); |
| 4173 | memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox)); |
| 4174 | |
| 4175 | rx_filter->size = sizeof(struct be_cmd_req_rx_filter); |
| 4176 | rx_filter->va = dma_zalloc_coherent(&adapter->pdev->dev, |
| 4177 | rx_filter->size, &rx_filter->dma, |
| 4178 | GFP_KERNEL); |
| 4179 | if (rx_filter->va == NULL) { |
| 4180 | status = -ENOMEM; |
| 4181 | goto free_mbox; |
| 4182 | } |
| 4183 | |
| 4184 | mutex_init(&adapter->mbox_lock); |
| 4185 | spin_lock_init(&adapter->mcc_lock); |
| 4186 | spin_lock_init(&adapter->mcc_cq_lock); |
| 4187 | |
| 4188 | init_completion(&adapter->flash_compl); |
| 4189 | pci_save_state(adapter->pdev); |
| 4190 | return 0; |
| 4191 | |
| 4192 | free_mbox: |
| 4193 | dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size, |
| 4194 | mbox_mem_alloc->va, mbox_mem_alloc->dma); |
| 4195 | |
| 4196 | unmap_pci_bars: |
| 4197 | be_unmap_pci_bars(adapter); |
| 4198 | |
| 4199 | done: |
| 4200 | return status; |
| 4201 | } |
| 4202 | |
| 4203 | static void be_stats_cleanup(struct be_adapter *adapter) |
| 4204 | { |
| 4205 | struct be_dma_mem *cmd = &adapter->stats_cmd; |
| 4206 | |
| 4207 | if (cmd->va) |
| 4208 | dma_free_coherent(&adapter->pdev->dev, cmd->size, |
| 4209 | cmd->va, cmd->dma); |
| 4210 | } |
| 4211 | |
| 4212 | static int be_stats_init(struct be_adapter *adapter) |
| 4213 | { |
| 4214 | struct be_dma_mem *cmd = &adapter->stats_cmd; |
| 4215 | |
| 4216 | if (lancer_chip(adapter)) |
| 4217 | cmd->size = sizeof(struct lancer_cmd_req_pport_stats); |
| 4218 | else if (BE2_chip(adapter)) |
| 4219 | cmd->size = sizeof(struct be_cmd_req_get_stats_v0); |
| 4220 | else if (BE3_chip(adapter)) |
| 4221 | cmd->size = sizeof(struct be_cmd_req_get_stats_v1); |
| 4222 | else |
| 4223 | /* ALL non-BE ASICs */ |
| 4224 | cmd->size = sizeof(struct be_cmd_req_get_stats_v2); |
| 4225 | |
| 4226 | cmd->va = dma_zalloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma, |
| 4227 | GFP_KERNEL); |
| 4228 | if (cmd->va == NULL) |
| 4229 | return -1; |
| 4230 | return 0; |
| 4231 | } |
| 4232 | |
| 4233 | static void be_remove(struct pci_dev *pdev) |
| 4234 | { |
| 4235 | struct be_adapter *adapter = pci_get_drvdata(pdev); |
| 4236 | |
| 4237 | if (!adapter) |
| 4238 | return; |
| 4239 | |
| 4240 | be_roce_dev_remove(adapter); |
| 4241 | be_intr_set(adapter, false); |
| 4242 | |
| 4243 | cancel_delayed_work_sync(&adapter->func_recovery_work); |
| 4244 | |
| 4245 | unregister_netdev(adapter->netdev); |
| 4246 | |
| 4247 | be_clear(adapter); |
| 4248 | |
| 4249 | /* tell fw we're done with firing cmds */ |
| 4250 | be_cmd_fw_clean(adapter); |
| 4251 | |
| 4252 | be_stats_cleanup(adapter); |
| 4253 | |
| 4254 | be_ctrl_cleanup(adapter); |
| 4255 | |
| 4256 | pci_disable_pcie_error_reporting(pdev); |
| 4257 | |
| 4258 | pci_release_regions(pdev); |
| 4259 | pci_disable_device(pdev); |
| 4260 | |
| 4261 | free_netdev(adapter->netdev); |
| 4262 | } |
| 4263 | |
| 4264 | bool be_is_wol_supported(struct be_adapter *adapter) |
| 4265 | { |
| 4266 | return ((adapter->wol_cap & BE_WOL_CAP) && |
| 4267 | !be_is_wol_excluded(adapter)) ? true : false; |
| 4268 | } |
| 4269 | |
| 4270 | u32 be_get_fw_log_level(struct be_adapter *adapter) |
| 4271 | { |
| 4272 | struct be_dma_mem extfat_cmd; |
| 4273 | struct be_fat_conf_params *cfgs; |
| 4274 | int status; |
| 4275 | u32 level = 0; |
| 4276 | int j; |
| 4277 | |
| 4278 | if (lancer_chip(adapter)) |
| 4279 | return 0; |
| 4280 | |
| 4281 | memset(&extfat_cmd, 0, sizeof(struct be_dma_mem)); |
| 4282 | extfat_cmd.size = sizeof(struct be_cmd_resp_get_ext_fat_caps); |
| 4283 | extfat_cmd.va = pci_alloc_consistent(adapter->pdev, extfat_cmd.size, |
| 4284 | &extfat_cmd.dma); |
| 4285 | |
| 4286 | if (!extfat_cmd.va) { |
| 4287 | dev_err(&adapter->pdev->dev, "%s: Memory allocation failure\n", |
| 4288 | __func__); |
| 4289 | goto err; |
| 4290 | } |
| 4291 | |
| 4292 | status = be_cmd_get_ext_fat_capabilites(adapter, &extfat_cmd); |
| 4293 | if (!status) { |
| 4294 | cfgs = (struct be_fat_conf_params *)(extfat_cmd.va + |
| 4295 | sizeof(struct be_cmd_resp_hdr)); |
| 4296 | for (j = 0; j < le32_to_cpu(cfgs->module[0].num_modes); j++) { |
| 4297 | if (cfgs->module[0].trace_lvl[j].mode == MODE_UART) |
| 4298 | level = cfgs->module[0].trace_lvl[j].dbg_lvl; |
| 4299 | } |
| 4300 | } |
| 4301 | pci_free_consistent(adapter->pdev, extfat_cmd.size, extfat_cmd.va, |
| 4302 | extfat_cmd.dma); |
| 4303 | err: |
| 4304 | return level; |
| 4305 | } |
| 4306 | |
| 4307 | static int be_get_initial_config(struct be_adapter *adapter) |
| 4308 | { |
| 4309 | int status; |
| 4310 | u32 level; |
| 4311 | |
| 4312 | status = be_cmd_get_cntl_attributes(adapter); |
| 4313 | if (status) |
| 4314 | return status; |
| 4315 | |
| 4316 | status = be_cmd_get_acpi_wol_cap(adapter); |
| 4317 | if (status) { |
| 4318 | /* in case of a failure to get wol capabillities |
| 4319 | * check the exclusion list to determine WOL capability */ |
| 4320 | if (!be_is_wol_excluded(adapter)) |
| 4321 | adapter->wol_cap |= BE_WOL_CAP; |
| 4322 | } |
| 4323 | |
| 4324 | if (be_is_wol_supported(adapter)) |
| 4325 | adapter->wol = true; |
| 4326 | |
| 4327 | /* Must be a power of 2 or else MODULO will BUG_ON */ |
| 4328 | adapter->be_get_temp_freq = 64; |
| 4329 | |
| 4330 | level = be_get_fw_log_level(adapter); |
| 4331 | adapter->msg_enable = level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0; |
| 4332 | |
| 4333 | adapter->cfg_num_qs = netif_get_num_default_rss_queues(); |
| 4334 | return 0; |
| 4335 | } |
| 4336 | |
| 4337 | static int lancer_recover_func(struct be_adapter *adapter) |
| 4338 | { |
| 4339 | struct device *dev = &adapter->pdev->dev; |
| 4340 | int status; |
| 4341 | |
| 4342 | status = lancer_test_and_set_rdy_state(adapter); |
| 4343 | if (status) |
| 4344 | goto err; |
| 4345 | |
| 4346 | if (netif_running(adapter->netdev)) |
| 4347 | be_close(adapter->netdev); |
| 4348 | |
| 4349 | be_clear(adapter); |
| 4350 | |
| 4351 | be_clear_all_error(adapter); |
| 4352 | |
| 4353 | status = be_setup(adapter); |
| 4354 | if (status) |
| 4355 | goto err; |
| 4356 | |
| 4357 | if (netif_running(adapter->netdev)) { |
| 4358 | status = be_open(adapter->netdev); |
| 4359 | if (status) |
| 4360 | goto err; |
| 4361 | } |
| 4362 | |
| 4363 | dev_err(dev, "Error recovery successful\n"); |
| 4364 | return 0; |
| 4365 | err: |
| 4366 | if (status == -EAGAIN) |
| 4367 | dev_err(dev, "Waiting for resource provisioning\n"); |
| 4368 | else |
| 4369 | dev_err(dev, "Error recovery failed\n"); |
| 4370 | |
| 4371 | return status; |
| 4372 | } |
| 4373 | |
| 4374 | static void be_func_recovery_task(struct work_struct *work) |
| 4375 | { |
| 4376 | struct be_adapter *adapter = |
| 4377 | container_of(work, struct be_adapter, func_recovery_work.work); |
| 4378 | int status = 0; |
| 4379 | |
| 4380 | be_detect_error(adapter); |
| 4381 | |
| 4382 | if (adapter->hw_error && lancer_chip(adapter)) { |
| 4383 | |
| 4384 | rtnl_lock(); |
| 4385 | netif_device_detach(adapter->netdev); |
| 4386 | rtnl_unlock(); |
| 4387 | |
| 4388 | status = lancer_recover_func(adapter); |
| 4389 | if (!status) |
| 4390 | netif_device_attach(adapter->netdev); |
| 4391 | } |
| 4392 | |
| 4393 | /* In Lancer, for all errors other than provisioning error (-EAGAIN), |
| 4394 | * no need to attempt further recovery. |
| 4395 | */ |
| 4396 | if (!status || status == -EAGAIN) |
| 4397 | schedule_delayed_work(&adapter->func_recovery_work, |
| 4398 | msecs_to_jiffies(1000)); |
| 4399 | } |
| 4400 | |
| 4401 | static void be_worker(struct work_struct *work) |
| 4402 | { |
| 4403 | struct be_adapter *adapter = |
| 4404 | container_of(work, struct be_adapter, work.work); |
| 4405 | struct be_rx_obj *rxo; |
| 4406 | int i; |
| 4407 | |
| 4408 | /* when interrupts are not yet enabled, just reap any pending |
| 4409 | * mcc completions */ |
| 4410 | if (!netif_running(adapter->netdev)) { |
| 4411 | local_bh_disable(); |
| 4412 | be_process_mcc(adapter); |
| 4413 | local_bh_enable(); |
| 4414 | goto reschedule; |
| 4415 | } |
| 4416 | |
| 4417 | if (!adapter->stats_cmd_sent) { |
| 4418 | if (lancer_chip(adapter)) |
| 4419 | lancer_cmd_get_pport_stats(adapter, |
| 4420 | &adapter->stats_cmd); |
| 4421 | else |
| 4422 | be_cmd_get_stats(adapter, &adapter->stats_cmd); |
| 4423 | } |
| 4424 | |
| 4425 | if (be_physfn(adapter) && |
| 4426 | MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0) |
| 4427 | be_cmd_get_die_temperature(adapter); |
| 4428 | |
| 4429 | for_all_rx_queues(adapter, rxo, i) { |
| 4430 | /* Replenish RX-queues starved due to memory |
| 4431 | * allocation failures. |
| 4432 | */ |
| 4433 | if (rxo->rx_post_starved) |
| 4434 | be_post_rx_frags(rxo, GFP_KERNEL); |
| 4435 | } |
| 4436 | |
| 4437 | be_eqd_update(adapter); |
| 4438 | |
| 4439 | reschedule: |
| 4440 | adapter->work_counter++; |
| 4441 | schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000)); |
| 4442 | } |
| 4443 | |
| 4444 | /* If any VFs are already enabled don't FLR the PF */ |
| 4445 | static bool be_reset_required(struct be_adapter *adapter) |
| 4446 | { |
| 4447 | return pci_num_vf(adapter->pdev) ? false : true; |
| 4448 | } |
| 4449 | |
| 4450 | static char *mc_name(struct be_adapter *adapter) |
| 4451 | { |
| 4452 | if (adapter->function_mode & FLEX10_MODE) |
| 4453 | return "FLEX10"; |
| 4454 | else if (adapter->function_mode & VNIC_MODE) |
| 4455 | return "vNIC"; |
| 4456 | else if (adapter->function_mode & UMC_ENABLED) |
| 4457 | return "UMC"; |
| 4458 | else |
| 4459 | return ""; |
| 4460 | } |
| 4461 | |
| 4462 | static inline char *func_name(struct be_adapter *adapter) |
| 4463 | { |
| 4464 | return be_physfn(adapter) ? "PF" : "VF"; |
| 4465 | } |
| 4466 | |
| 4467 | static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id) |
| 4468 | { |
| 4469 | int status = 0; |
| 4470 | struct be_adapter *adapter; |
| 4471 | struct net_device *netdev; |
| 4472 | char port_name; |
| 4473 | |
| 4474 | status = pci_enable_device(pdev); |
| 4475 | if (status) |
| 4476 | goto do_none; |
| 4477 | |
| 4478 | status = pci_request_regions(pdev, DRV_NAME); |
| 4479 | if (status) |
| 4480 | goto disable_dev; |
| 4481 | pci_set_master(pdev); |
| 4482 | |
| 4483 | netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS); |
| 4484 | if (netdev == NULL) { |
| 4485 | status = -ENOMEM; |
| 4486 | goto rel_reg; |
| 4487 | } |
| 4488 | adapter = netdev_priv(netdev); |
| 4489 | adapter->pdev = pdev; |
| 4490 | pci_set_drvdata(pdev, adapter); |
| 4491 | adapter->netdev = netdev; |
| 4492 | SET_NETDEV_DEV(netdev, &pdev->dev); |
| 4493 | |
| 4494 | status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); |
| 4495 | if (!status) { |
| 4496 | netdev->features |= NETIF_F_HIGHDMA; |
| 4497 | } else { |
| 4498 | status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
| 4499 | if (status) { |
| 4500 | dev_err(&pdev->dev, "Could not set PCI DMA Mask\n"); |
| 4501 | goto free_netdev; |
| 4502 | } |
| 4503 | } |
| 4504 | |
| 4505 | if (be_physfn(adapter)) { |
| 4506 | status = pci_enable_pcie_error_reporting(pdev); |
| 4507 | if (!status) |
| 4508 | dev_info(&pdev->dev, "PCIe error reporting enabled\n"); |
| 4509 | } |
| 4510 | |
| 4511 | status = be_ctrl_init(adapter); |
| 4512 | if (status) |
| 4513 | goto free_netdev; |
| 4514 | |
| 4515 | /* sync up with fw's ready state */ |
| 4516 | if (be_physfn(adapter)) { |
| 4517 | status = be_fw_wait_ready(adapter); |
| 4518 | if (status) |
| 4519 | goto ctrl_clean; |
| 4520 | } |
| 4521 | |
| 4522 | if (be_reset_required(adapter)) { |
| 4523 | status = be_cmd_reset_function(adapter); |
| 4524 | if (status) |
| 4525 | goto ctrl_clean; |
| 4526 | |
| 4527 | /* Wait for interrupts to quiesce after an FLR */ |
| 4528 | msleep(100); |
| 4529 | } |
| 4530 | |
| 4531 | /* Allow interrupts for other ULPs running on NIC function */ |
| 4532 | be_intr_set(adapter, true); |
| 4533 | |
| 4534 | /* tell fw we're ready to fire cmds */ |
| 4535 | status = be_cmd_fw_init(adapter); |
| 4536 | if (status) |
| 4537 | goto ctrl_clean; |
| 4538 | |
| 4539 | status = be_stats_init(adapter); |
| 4540 | if (status) |
| 4541 | goto ctrl_clean; |
| 4542 | |
| 4543 | status = be_get_initial_config(adapter); |
| 4544 | if (status) |
| 4545 | goto stats_clean; |
| 4546 | |
| 4547 | INIT_DELAYED_WORK(&adapter->work, be_worker); |
| 4548 | INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task); |
| 4549 | adapter->rx_fc = adapter->tx_fc = true; |
| 4550 | |
| 4551 | status = be_setup(adapter); |
| 4552 | if (status) |
| 4553 | goto stats_clean; |
| 4554 | |
| 4555 | be_netdev_init(netdev); |
| 4556 | status = register_netdev(netdev); |
| 4557 | if (status != 0) |
| 4558 | goto unsetup; |
| 4559 | |
| 4560 | be_roce_dev_add(adapter); |
| 4561 | |
| 4562 | schedule_delayed_work(&adapter->func_recovery_work, |
| 4563 | msecs_to_jiffies(1000)); |
| 4564 | |
| 4565 | be_cmd_query_port_name(adapter, &port_name); |
| 4566 | |
| 4567 | dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev), |
| 4568 | func_name(adapter), mc_name(adapter), port_name); |
| 4569 | |
| 4570 | return 0; |
| 4571 | |
| 4572 | unsetup: |
| 4573 | be_clear(adapter); |
| 4574 | stats_clean: |
| 4575 | be_stats_cleanup(adapter); |
| 4576 | ctrl_clean: |
| 4577 | be_ctrl_cleanup(adapter); |
| 4578 | free_netdev: |
| 4579 | free_netdev(netdev); |
| 4580 | rel_reg: |
| 4581 | pci_release_regions(pdev); |
| 4582 | disable_dev: |
| 4583 | pci_disable_device(pdev); |
| 4584 | do_none: |
| 4585 | dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev)); |
| 4586 | return status; |
| 4587 | } |
| 4588 | |
| 4589 | static int be_suspend(struct pci_dev *pdev, pm_message_t state) |
| 4590 | { |
| 4591 | struct be_adapter *adapter = pci_get_drvdata(pdev); |
| 4592 | struct net_device *netdev = adapter->netdev; |
| 4593 | |
| 4594 | if (adapter->wol) |
| 4595 | be_setup_wol(adapter, true); |
| 4596 | |
| 4597 | cancel_delayed_work_sync(&adapter->func_recovery_work); |
| 4598 | |
| 4599 | netif_device_detach(netdev); |
| 4600 | if (netif_running(netdev)) { |
| 4601 | rtnl_lock(); |
| 4602 | be_close(netdev); |
| 4603 | rtnl_unlock(); |
| 4604 | } |
| 4605 | be_clear(adapter); |
| 4606 | |
| 4607 | pci_save_state(pdev); |
| 4608 | pci_disable_device(pdev); |
| 4609 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
| 4610 | return 0; |
| 4611 | } |
| 4612 | |
| 4613 | static int be_resume(struct pci_dev *pdev) |
| 4614 | { |
| 4615 | int status = 0; |
| 4616 | struct be_adapter *adapter = pci_get_drvdata(pdev); |
| 4617 | struct net_device *netdev = adapter->netdev; |
| 4618 | |
| 4619 | netif_device_detach(netdev); |
| 4620 | |
| 4621 | status = pci_enable_device(pdev); |
| 4622 | if (status) |
| 4623 | return status; |
| 4624 | |
| 4625 | pci_set_power_state(pdev, PCI_D0); |
| 4626 | pci_restore_state(pdev); |
| 4627 | |
| 4628 | status = be_fw_wait_ready(adapter); |
| 4629 | if (status) |
| 4630 | return status; |
| 4631 | |
| 4632 | /* tell fw we're ready to fire cmds */ |
| 4633 | status = be_cmd_fw_init(adapter); |
| 4634 | if (status) |
| 4635 | return status; |
| 4636 | |
| 4637 | be_setup(adapter); |
| 4638 | if (netif_running(netdev)) { |
| 4639 | rtnl_lock(); |
| 4640 | be_open(netdev); |
| 4641 | rtnl_unlock(); |
| 4642 | } |
| 4643 | |
| 4644 | schedule_delayed_work(&adapter->func_recovery_work, |
| 4645 | msecs_to_jiffies(1000)); |
| 4646 | netif_device_attach(netdev); |
| 4647 | |
| 4648 | if (adapter->wol) |
| 4649 | be_setup_wol(adapter, false); |
| 4650 | |
| 4651 | return 0; |
| 4652 | } |
| 4653 | |
| 4654 | /* |
| 4655 | * An FLR will stop BE from DMAing any data. |
| 4656 | */ |
| 4657 | static void be_shutdown(struct pci_dev *pdev) |
| 4658 | { |
| 4659 | struct be_adapter *adapter = pci_get_drvdata(pdev); |
| 4660 | |
| 4661 | if (!adapter) |
| 4662 | return; |
| 4663 | |
| 4664 | cancel_delayed_work_sync(&adapter->work); |
| 4665 | cancel_delayed_work_sync(&adapter->func_recovery_work); |
| 4666 | |
| 4667 | netif_device_detach(adapter->netdev); |
| 4668 | |
| 4669 | be_cmd_reset_function(adapter); |
| 4670 | |
| 4671 | pci_disable_device(pdev); |
| 4672 | } |
| 4673 | |
| 4674 | static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev, |
| 4675 | pci_channel_state_t state) |
| 4676 | { |
| 4677 | struct be_adapter *adapter = pci_get_drvdata(pdev); |
| 4678 | struct net_device *netdev = adapter->netdev; |
| 4679 | |
| 4680 | dev_err(&adapter->pdev->dev, "EEH error detected\n"); |
| 4681 | |
| 4682 | if (!adapter->eeh_error) { |
| 4683 | adapter->eeh_error = true; |
| 4684 | |
| 4685 | cancel_delayed_work_sync(&adapter->func_recovery_work); |
| 4686 | |
| 4687 | rtnl_lock(); |
| 4688 | netif_device_detach(netdev); |
| 4689 | if (netif_running(netdev)) |
| 4690 | be_close(netdev); |
| 4691 | rtnl_unlock(); |
| 4692 | |
| 4693 | be_clear(adapter); |
| 4694 | } |
| 4695 | |
| 4696 | if (state == pci_channel_io_perm_failure) |
| 4697 | return PCI_ERS_RESULT_DISCONNECT; |
| 4698 | |
| 4699 | pci_disable_device(pdev); |
| 4700 | |
| 4701 | /* The error could cause the FW to trigger a flash debug dump. |
| 4702 | * Resetting the card while flash dump is in progress |
| 4703 | * can cause it not to recover; wait for it to finish. |
| 4704 | * Wait only for first function as it is needed only once per |
| 4705 | * adapter. |
| 4706 | */ |
| 4707 | if (pdev->devfn == 0) |
| 4708 | ssleep(30); |
| 4709 | |
| 4710 | return PCI_ERS_RESULT_NEED_RESET; |
| 4711 | } |
| 4712 | |
| 4713 | static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev) |
| 4714 | { |
| 4715 | struct be_adapter *adapter = pci_get_drvdata(pdev); |
| 4716 | int status; |
| 4717 | |
| 4718 | dev_info(&adapter->pdev->dev, "EEH reset\n"); |
| 4719 | |
| 4720 | status = pci_enable_device(pdev); |
| 4721 | if (status) |
| 4722 | return PCI_ERS_RESULT_DISCONNECT; |
| 4723 | |
| 4724 | pci_set_master(pdev); |
| 4725 | pci_set_power_state(pdev, PCI_D0); |
| 4726 | pci_restore_state(pdev); |
| 4727 | |
| 4728 | /* Check if card is ok and fw is ready */ |
| 4729 | dev_info(&adapter->pdev->dev, |
| 4730 | "Waiting for FW to be ready after EEH reset\n"); |
| 4731 | status = be_fw_wait_ready(adapter); |
| 4732 | if (status) |
| 4733 | return PCI_ERS_RESULT_DISCONNECT; |
| 4734 | |
| 4735 | pci_cleanup_aer_uncorrect_error_status(pdev); |
| 4736 | be_clear_all_error(adapter); |
| 4737 | return PCI_ERS_RESULT_RECOVERED; |
| 4738 | } |
| 4739 | |
| 4740 | static void be_eeh_resume(struct pci_dev *pdev) |
| 4741 | { |
| 4742 | int status = 0; |
| 4743 | struct be_adapter *adapter = pci_get_drvdata(pdev); |
| 4744 | struct net_device *netdev = adapter->netdev; |
| 4745 | |
| 4746 | dev_info(&adapter->pdev->dev, "EEH resume\n"); |
| 4747 | |
| 4748 | pci_save_state(pdev); |
| 4749 | |
| 4750 | status = be_cmd_reset_function(adapter); |
| 4751 | if (status) |
| 4752 | goto err; |
| 4753 | |
| 4754 | /* tell fw we're ready to fire cmds */ |
| 4755 | status = be_cmd_fw_init(adapter); |
| 4756 | if (status) |
| 4757 | goto err; |
| 4758 | |
| 4759 | status = be_setup(adapter); |
| 4760 | if (status) |
| 4761 | goto err; |
| 4762 | |
| 4763 | if (netif_running(netdev)) { |
| 4764 | status = be_open(netdev); |
| 4765 | if (status) |
| 4766 | goto err; |
| 4767 | } |
| 4768 | |
| 4769 | schedule_delayed_work(&adapter->func_recovery_work, |
| 4770 | msecs_to_jiffies(1000)); |
| 4771 | netif_device_attach(netdev); |
| 4772 | return; |
| 4773 | err: |
| 4774 | dev_err(&adapter->pdev->dev, "EEH resume failed\n"); |
| 4775 | } |
| 4776 | |
| 4777 | static const struct pci_error_handlers be_eeh_handlers = { |
| 4778 | .error_detected = be_eeh_err_detected, |
| 4779 | .slot_reset = be_eeh_reset, |
| 4780 | .resume = be_eeh_resume, |
| 4781 | }; |
| 4782 | |
| 4783 | static struct pci_driver be_driver = { |
| 4784 | .name = DRV_NAME, |
| 4785 | .id_table = be_dev_ids, |
| 4786 | .probe = be_probe, |
| 4787 | .remove = be_remove, |
| 4788 | .suspend = be_suspend, |
| 4789 | .resume = be_resume, |
| 4790 | .shutdown = be_shutdown, |
| 4791 | .err_handler = &be_eeh_handlers |
| 4792 | }; |
| 4793 | |
| 4794 | static int __init be_init_module(void) |
| 4795 | { |
| 4796 | if (rx_frag_size != 8192 && rx_frag_size != 4096 && |
| 4797 | rx_frag_size != 2048) { |
| 4798 | printk(KERN_WARNING DRV_NAME |
| 4799 | " : Module param rx_frag_size must be 2048/4096/8192." |
| 4800 | " Using 2048\n"); |
| 4801 | rx_frag_size = 2048; |
| 4802 | } |
| 4803 | |
| 4804 | return pci_register_driver(&be_driver); |
| 4805 | } |
| 4806 | module_init(be_init_module); |
| 4807 | |
| 4808 | static void __exit be_exit_module(void) |
| 4809 | { |
| 4810 | pci_unregister_driver(&be_driver); |
| 4811 | } |
| 4812 | module_exit(be_exit_module); |