1 /* 2 * Copyright (C) 2005 - 2014 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 #ifndef BE_H 19 #define BE_H 20 21 #include <linux/pci.h> 22 #include <linux/etherdevice.h> 23 #include <linux/delay.h> 24 #include <net/tcp.h> 25 #include <net/ip.h> 26 #include <net/ipv6.h> 27 #include <linux/if_vlan.h> 28 #include <linux/workqueue.h> 29 #include <linux/interrupt.h> 30 #include <linux/firmware.h> 31 #include <linux/slab.h> 32 #include <linux/u64_stats_sync.h> 33 34 #include "be_hw.h" 35 #include "be_roce.h" 36 37 #define DRV_VER "10.4u" 38 #define DRV_NAME "be2net" 39 #define BE_NAME "Emulex BladeEngine2" 40 #define BE3_NAME "Emulex BladeEngine3" 41 #define OC_NAME "Emulex OneConnect" 42 #define OC_NAME_BE OC_NAME "(be3)" 43 #define OC_NAME_LANCER OC_NAME "(Lancer)" 44 #define OC_NAME_SH OC_NAME "(Skyhawk)" 45 #define DRV_DESC "Emulex OneConnect NIC Driver" 46 47 #define BE_VENDOR_ID 0x19a2 48 #define EMULEX_VENDOR_ID 0x10df 49 #define BE_DEVICE_ID1 0x211 50 #define BE_DEVICE_ID2 0x221 51 #define OC_DEVICE_ID1 0x700 /* Device Id for BE2 cards */ 52 #define OC_DEVICE_ID2 0x710 /* Device Id for BE3 cards */ 53 #define OC_DEVICE_ID3 0xe220 /* Device id for Lancer cards */ 54 #define OC_DEVICE_ID4 0xe228 /* Device id for VF in Lancer */ 55 #define OC_DEVICE_ID5 0x720 /* Device Id for Skyhawk cards */ 56 #define OC_DEVICE_ID6 0x728 /* Device id for VF in SkyHawk */ 57 #define OC_SUBSYS_DEVICE_ID1 0xE602 58 #define OC_SUBSYS_DEVICE_ID2 0xE642 59 #define OC_SUBSYS_DEVICE_ID3 0xE612 60 #define OC_SUBSYS_DEVICE_ID4 0xE652 61 62 /* Number of bytes of an RX frame that are copied to skb->data */ 63 #define BE_HDR_LEN ((u16) 64) 64 /* allocate extra space to allow tunneling decapsulation without head reallocation */ 65 #define BE_RX_SKB_ALLOC_SIZE (BE_HDR_LEN + 64) 66 67 #define BE_MAX_JUMBO_FRAME_SIZE 9018 68 #define BE_MIN_MTU 256 69 #define BE_MAX_MTU (BE_MAX_JUMBO_FRAME_SIZE - \ 70 (ETH_HLEN + ETH_FCS_LEN)) 71 72 #define BE_NUM_VLANS_SUPPORTED 64 73 #define BE_MAX_EQD 128u 74 #define BE_MAX_TX_FRAG_COUNT 30 75 76 #define EVNT_Q_LEN 1024 77 #define TX_Q_LEN 2048 78 #define TX_CQ_LEN 1024 79 #define RX_Q_LEN 1024 /* Does not support any other value */ 80 #define RX_CQ_LEN 1024 81 #define MCC_Q_LEN 128 /* total size not to exceed 8 pages */ 82 #define MCC_CQ_LEN 256 83 84 #define BE2_MAX_RSS_QS 4 85 #define BE3_MAX_RSS_QS 16 86 #define BE3_MAX_TX_QS 16 87 #define BE3_MAX_EVT_QS 16 88 #define BE3_SRIOV_MAX_EVT_QS 8 89 90 #define MAX_RX_QS 32 91 #define MAX_EVT_QS 32 92 #define MAX_TX_QS 32 93 94 #define MAX_ROCE_EQS 5 95 #define MAX_MSIX_VECTORS 32 96 #define MIN_MSIX_VECTORS 1 97 #define BE_NAPI_WEIGHT 64 98 #define MAX_RX_POST BE_NAPI_WEIGHT /* Frags posted at a time */ 99 #define RX_FRAGS_REFILL_WM (RX_Q_LEN - MAX_RX_POST) 100 101 #define MAX_VFS 30 /* Max VFs supported by BE3 FW */ 102 #define FW_VER_LEN 32 103 104 #define RSS_INDIR_TABLE_LEN 128 105 #define RSS_HASH_KEY_LEN 40 106 107 struct be_dma_mem { 108 void *va; 109 dma_addr_t dma; 110 u32 size; 111 }; 112 113 struct be_queue_info { 114 struct be_dma_mem dma_mem; 115 u16 len; 116 u16 entry_size; /* Size of an element in the queue */ 117 u16 id; 118 u16 tail, head; 119 bool created; 120 atomic_t used; /* Number of valid elements in the queue */ 121 }; 122 123 static inline u32 MODULO(u16 val, u16 limit) 124 { 125 BUG_ON(limit & (limit - 1)); 126 return val & (limit - 1); 127 } 128 129 static inline void index_adv(u16 *index, u16 val, u16 limit) 130 { 131 *index = MODULO((*index + val), limit); 132 } 133 134 static inline void index_inc(u16 *index, u16 limit) 135 { 136 *index = MODULO((*index + 1), limit); 137 } 138 139 static inline void *queue_head_node(struct be_queue_info *q) 140 { 141 return q->dma_mem.va + q->head * q->entry_size; 142 } 143 144 static inline void *queue_tail_node(struct be_queue_info *q) 145 { 146 return q->dma_mem.va + q->tail * q->entry_size; 147 } 148 149 static inline void *queue_index_node(struct be_queue_info *q, u16 index) 150 { 151 return q->dma_mem.va + index * q->entry_size; 152 } 153 154 static inline void queue_head_inc(struct be_queue_info *q) 155 { 156 index_inc(&q->head, q->len); 157 } 158 159 static inline void index_dec(u16 *index, u16 limit) 160 { 161 *index = MODULO((*index - 1), limit); 162 } 163 164 static inline void queue_tail_inc(struct be_queue_info *q) 165 { 166 index_inc(&q->tail, q->len); 167 } 168 169 struct be_eq_obj { 170 struct be_queue_info q; 171 char desc[32]; 172 173 /* Adaptive interrupt coalescing (AIC) info */ 174 bool enable_aic; 175 u32 min_eqd; /* in usecs */ 176 u32 max_eqd; /* in usecs */ 177 u32 eqd; /* configured val when aic is off */ 178 u32 cur_eqd; /* in usecs */ 179 180 u8 idx; /* array index */ 181 u8 msix_idx; 182 u16 spurious_intr; 183 struct napi_struct napi; 184 struct be_adapter *adapter; 185 186 #ifdef CONFIG_NET_RX_BUSY_POLL 187 #define BE_EQ_IDLE 0 188 #define BE_EQ_NAPI 1 /* napi owns this EQ */ 189 #define BE_EQ_POLL 2 /* poll owns this EQ */ 190 #define BE_EQ_LOCKED (BE_EQ_NAPI | BE_EQ_POLL) 191 #define BE_EQ_NAPI_YIELD 4 /* napi yielded this EQ */ 192 #define BE_EQ_POLL_YIELD 8 /* poll yielded this EQ */ 193 #define BE_EQ_YIELD (BE_EQ_NAPI_YIELD | BE_EQ_POLL_YIELD) 194 #define BE_EQ_USER_PEND (BE_EQ_POLL | BE_EQ_POLL_YIELD) 195 unsigned int state; 196 spinlock_t lock; /* lock to serialize napi and busy-poll */ 197 #endif /* CONFIG_NET_RX_BUSY_POLL */ 198 } ____cacheline_aligned_in_smp; 199 200 struct be_aic_obj { /* Adaptive interrupt coalescing (AIC) info */ 201 bool enable; 202 u32 min_eqd; /* in usecs */ 203 u32 max_eqd; /* in usecs */ 204 u32 prev_eqd; /* in usecs */ 205 u32 et_eqd; /* configured val when aic is off */ 206 ulong jiffies; 207 u64 rx_pkts_prev; /* Used to calculate RX pps */ 208 u64 tx_reqs_prev; /* Used to calculate TX pps */ 209 }; 210 211 enum { 212 NAPI_POLLING, 213 BUSY_POLLING 214 }; 215 216 struct be_mcc_obj { 217 struct be_queue_info q; 218 struct be_queue_info cq; 219 bool rearm_cq; 220 }; 221 222 struct be_tx_stats { 223 u64 tx_bytes; 224 u64 tx_pkts; 225 u64 tx_reqs; 226 u64 tx_compl; 227 ulong tx_jiffies; 228 u32 tx_stops; 229 u32 tx_drv_drops; /* pkts dropped by driver */ 230 /* the error counters are described in be_ethtool.c */ 231 u32 tx_hdr_parse_err; 232 u32 tx_dma_err; 233 u32 tx_tso_err; 234 u32 tx_spoof_check_err; 235 u32 tx_qinq_err; 236 u32 tx_internal_parity_err; 237 struct u64_stats_sync sync; 238 struct u64_stats_sync sync_compl; 239 }; 240 241 struct be_tx_obj { 242 u32 db_offset; 243 struct be_queue_info q; 244 struct be_queue_info cq; 245 /* Remember the skbs that were transmitted */ 246 struct sk_buff *sent_skb_list[TX_Q_LEN]; 247 struct be_tx_stats stats; 248 u16 pend_wrb_cnt; /* Number of WRBs yet to be given to HW */ 249 u16 last_req_wrb_cnt; /* wrb cnt of the last req in the Q */ 250 u16 last_req_hdr; /* index of the last req's hdr-wrb */ 251 } ____cacheline_aligned_in_smp; 252 253 /* Struct to remember the pages posted for rx frags */ 254 struct be_rx_page_info { 255 struct page *page; 256 /* set to page-addr for last frag of the page & frag-addr otherwise */ 257 DEFINE_DMA_UNMAP_ADDR(bus); 258 u16 page_offset; 259 bool last_frag; /* last frag of the page */ 260 }; 261 262 struct be_rx_stats { 263 u64 rx_bytes; 264 u64 rx_pkts; 265 u32 rx_drops_no_skbs; /* skb allocation errors */ 266 u32 rx_drops_no_frags; /* HW has no fetched frags */ 267 u32 rx_post_fail; /* page post alloc failures */ 268 u32 rx_compl; 269 u32 rx_mcast_pkts; 270 u32 rx_compl_err; /* completions with err set */ 271 struct u64_stats_sync sync; 272 }; 273 274 struct be_rx_compl_info { 275 u32 rss_hash; 276 u16 vlan_tag; 277 u16 pkt_size; 278 u16 port; 279 u8 vlanf; 280 u8 num_rcvd; 281 u8 err; 282 u8 ipf; 283 u8 tcpf; 284 u8 udpf; 285 u8 ip_csum; 286 u8 l4_csum; 287 u8 ipv6; 288 u8 qnq; 289 u8 pkt_type; 290 u8 ip_frag; 291 u8 tunneled; 292 }; 293 294 struct be_rx_obj { 295 struct be_adapter *adapter; 296 struct be_queue_info q; 297 struct be_queue_info cq; 298 struct be_rx_compl_info rxcp; 299 struct be_rx_page_info page_info_tbl[RX_Q_LEN]; 300 struct be_rx_stats stats; 301 u8 rss_id; 302 bool rx_post_starved; /* Zero rx frags have been posted to BE */ 303 } ____cacheline_aligned_in_smp; 304 305 struct be_drv_stats { 306 u32 be_on_die_temperature; 307 u32 eth_red_drops; 308 u32 dma_map_errors; 309 u32 rx_drops_no_pbuf; 310 u32 rx_drops_no_txpb; 311 u32 rx_drops_no_erx_descr; 312 u32 rx_drops_no_tpre_descr; 313 u32 rx_drops_too_many_frags; 314 u32 forwarded_packets; 315 u32 rx_drops_mtu; 316 u32 rx_crc_errors; 317 u32 rx_alignment_symbol_errors; 318 u32 rx_pause_frames; 319 u32 rx_priority_pause_frames; 320 u32 rx_control_frames; 321 u32 rx_in_range_errors; 322 u32 rx_out_range_errors; 323 u32 rx_frame_too_long; 324 u32 rx_address_filtered; 325 u32 rx_dropped_too_small; 326 u32 rx_dropped_too_short; 327 u32 rx_dropped_header_too_small; 328 u32 rx_dropped_tcp_length; 329 u32 rx_dropped_runt; 330 u32 rx_ip_checksum_errs; 331 u32 rx_tcp_checksum_errs; 332 u32 rx_udp_checksum_errs; 333 u32 tx_pauseframes; 334 u32 tx_priority_pauseframes; 335 u32 tx_controlframes; 336 u32 rxpp_fifo_overflow_drop; 337 u32 rx_input_fifo_overflow_drop; 338 u32 pmem_fifo_overflow_drop; 339 u32 jabber_events; 340 u32 rx_roce_bytes_lsd; 341 u32 rx_roce_bytes_msd; 342 u32 rx_roce_frames; 343 u32 roce_drops_payload_len; 344 u32 roce_drops_crc; 345 }; 346 347 /* A vlan-id of 0xFFFF must be used to clear transparent vlan-tagging */ 348 #define BE_RESET_VLAN_TAG_ID 0xFFFF 349 350 struct be_vf_cfg { 351 unsigned char mac_addr[ETH_ALEN]; 352 int if_handle; 353 int pmac_id; 354 u16 vlan_tag; 355 u32 tx_rate; 356 u32 plink_tracking; 357 u32 privileges; 358 }; 359 360 enum vf_state { 361 ENABLED = 0, 362 ASSIGNED = 1 363 }; 364 365 #define BE_FLAGS_LINK_STATUS_INIT BIT(1) 366 #define BE_FLAGS_SRIOV_ENABLED BIT(2) 367 #define BE_FLAGS_WORKER_SCHEDULED BIT(3) 368 #define BE_FLAGS_NAPI_ENABLED BIT(6) 369 #define BE_FLAGS_QNQ_ASYNC_EVT_RCVD BIT(7) 370 #define BE_FLAGS_VXLAN_OFFLOADS BIT(8) 371 #define BE_FLAGS_SETUP_DONE BIT(9) 372 #define BE_FLAGS_EVT_INCOMPATIBLE_SFP BIT(10) 373 374 #define BE_UC_PMAC_COUNT 30 375 #define BE_VF_UC_PMAC_COUNT 2 376 377 /* Ethtool set_dump flags */ 378 #define LANCER_INITIATE_FW_DUMP 0x1 379 #define LANCER_DELETE_FW_DUMP 0x2 380 381 struct phy_info { 382 /* From SFF-8472 spec */ 383 #define SFP_VENDOR_NAME_LEN 17 384 u8 transceiver; 385 u8 autoneg; 386 u8 fc_autoneg; 387 u8 port_type; 388 u16 phy_type; 389 u16 interface_type; 390 u32 misc_params; 391 u16 auto_speeds_supported; 392 u16 fixed_speeds_supported; 393 int link_speed; 394 u32 advertising; 395 u32 supported; 396 u8 cable_type; 397 u8 vendor_name[SFP_VENDOR_NAME_LEN]; 398 u8 vendor_pn[SFP_VENDOR_NAME_LEN]; 399 }; 400 401 struct be_resources { 402 u16 max_vfs; /* Total VFs "really" supported by FW/HW */ 403 u16 max_mcast_mac; 404 u16 max_tx_qs; 405 u16 max_rss_qs; 406 u16 max_rx_qs; 407 u16 max_uc_mac; /* Max UC MACs programmable */ 408 u16 max_vlans; /* Number of vlans supported */ 409 u16 max_evt_qs; 410 u32 if_cap_flags; 411 u32 vf_if_cap_flags; /* VF if capability flags */ 412 }; 413 414 struct rss_info { 415 u64 rss_flags; 416 u8 rsstable[RSS_INDIR_TABLE_LEN]; 417 u8 rss_queue[RSS_INDIR_TABLE_LEN]; 418 u8 rss_hkey[RSS_HASH_KEY_LEN]; 419 }; 420 421 struct be_adapter { 422 struct pci_dev *pdev; 423 struct net_device *netdev; 424 425 u8 __iomem *csr; /* CSR BAR used only for BE2/3 */ 426 u8 __iomem *db; /* Door Bell */ 427 u8 __iomem *pcicfg; /* On SH,BEx only. Shadow of PCI config space */ 428 429 struct mutex mbox_lock; /* For serializing mbox cmds to BE card */ 430 struct be_dma_mem mbox_mem; 431 /* Mbox mem is adjusted to align to 16 bytes. The allocated addr 432 * is stored for freeing purpose */ 433 struct be_dma_mem mbox_mem_alloced; 434 435 struct be_mcc_obj mcc_obj; 436 spinlock_t mcc_lock; /* For serializing mcc cmds to BE card */ 437 spinlock_t mcc_cq_lock; 438 439 u16 cfg_num_qs; /* configured via set-channels */ 440 u16 num_evt_qs; 441 u16 num_msix_vec; 442 struct be_eq_obj eq_obj[MAX_EVT_QS]; 443 struct msix_entry msix_entries[MAX_MSIX_VECTORS]; 444 bool isr_registered; 445 446 /* TX Rings */ 447 u16 num_tx_qs; 448 struct be_tx_obj tx_obj[MAX_TX_QS]; 449 450 /* Rx rings */ 451 u16 num_rx_qs; 452 struct be_rx_obj rx_obj[MAX_RX_QS]; 453 u32 big_page_size; /* Compounded page size shared by rx wrbs */ 454 455 struct be_drv_stats drv_stats; 456 struct be_aic_obj aic_obj[MAX_EVT_QS]; 457 u8 vlan_prio_bmap; /* Available Priority BitMap */ 458 u16 recommended_prio; /* Recommended Priority */ 459 struct be_dma_mem rx_filter; /* Cmd DMA mem for rx-filter */ 460 461 struct be_dma_mem stats_cmd; 462 /* Work queue used to perform periodic tasks like getting statistics */ 463 struct delayed_work work; 464 u16 work_counter; 465 466 struct delayed_work func_recovery_work; 467 u32 flags; 468 u32 cmd_privileges; 469 /* Ethtool knobs and info */ 470 char fw_ver[FW_VER_LEN]; 471 char fw_on_flash[FW_VER_LEN]; 472 473 /* IFACE filtering fields */ 474 int if_handle; /* Used to configure filtering */ 475 u32 if_flags; /* Interface filtering flags */ 476 u32 *pmac_id; /* MAC addr handle used by BE card */ 477 u32 uc_macs; /* Count of secondary UC MAC programmed */ 478 unsigned long vids[BITS_TO_LONGS(VLAN_N_VID)]; 479 u16 vlans_added; 480 481 u32 beacon_state; /* for set_phys_id */ 482 483 bool eeh_error; 484 bool fw_timeout; 485 bool hw_error; 486 487 u32 port_num; 488 char port_name; 489 u8 mc_type; 490 u32 function_mode; 491 u32 function_caps; 492 u32 rx_fc; /* Rx flow control */ 493 u32 tx_fc; /* Tx flow control */ 494 bool stats_cmd_sent; 495 struct { 496 u32 size; 497 u32 total_size; 498 u64 io_addr; 499 } roce_db; 500 u32 num_msix_roce_vec; 501 struct ocrdma_dev *ocrdma_dev; 502 struct list_head entry; 503 504 u32 flash_status; 505 struct completion et_cmd_compl; 506 507 struct be_resources pool_res; /* resources available for the port */ 508 struct be_resources res; /* resources available for the func */ 509 u16 num_vfs; /* Number of VFs provisioned by PF */ 510 u8 virtfn; 511 struct be_vf_cfg *vf_cfg; 512 bool be3_native; 513 u32 sli_family; 514 u8 hba_port_num; 515 u16 pvid; 516 __be16 vxlan_port; 517 int vxlan_port_count; 518 struct phy_info phy; 519 u8 wol_cap; 520 bool wol_en; 521 u16 asic_rev; 522 u16 qnq_vid; 523 u32 msg_enable; 524 int be_get_temp_freq; 525 u8 pf_number; 526 struct rss_info rss_info; 527 }; 528 529 #define be_physfn(adapter) (!adapter->virtfn) 530 #define be_virtfn(adapter) (adapter->virtfn) 531 #define sriov_enabled(adapter) (adapter->flags & \ 532 BE_FLAGS_SRIOV_ENABLED) 533 534 #define for_all_vfs(adapter, vf_cfg, i) \ 535 for (i = 0, vf_cfg = &adapter->vf_cfg[i]; i < adapter->num_vfs; \ 536 i++, vf_cfg++) 537 538 #define ON 1 539 #define OFF 0 540 541 #define be_max_vlans(adapter) (adapter->res.max_vlans) 542 #define be_max_uc(adapter) (adapter->res.max_uc_mac) 543 #define be_max_mc(adapter) (adapter->res.max_mcast_mac) 544 #define be_max_vfs(adapter) (adapter->pool_res.max_vfs) 545 #define be_max_rss(adapter) (adapter->res.max_rss_qs) 546 #define be_max_txqs(adapter) (adapter->res.max_tx_qs) 547 #define be_max_prio_txqs(adapter) (adapter->res.max_prio_tx_qs) 548 #define be_max_rxqs(adapter) (adapter->res.max_rx_qs) 549 #define be_max_eqs(adapter) (adapter->res.max_evt_qs) 550 #define be_if_cap_flags(adapter) (adapter->res.if_cap_flags) 551 552 static inline u16 be_max_qs(struct be_adapter *adapter) 553 { 554 /* If no RSS, need atleast the one def RXQ */ 555 u16 num = max_t(u16, be_max_rss(adapter), 1); 556 557 num = min(num, be_max_eqs(adapter)); 558 return min_t(u16, num, num_online_cpus()); 559 } 560 561 /* Is BE in pvid_tagging mode */ 562 #define be_pvid_tagging_enabled(adapter) (adapter->pvid) 563 564 /* Is BE in QNQ multi-channel mode */ 565 #define be_is_qnq_mode(adapter) (adapter->function_mode & QNQ_MODE) 566 567 #define lancer_chip(adapter) (adapter->pdev->device == OC_DEVICE_ID3 || \ 568 adapter->pdev->device == OC_DEVICE_ID4) 569 570 #define skyhawk_chip(adapter) (adapter->pdev->device == OC_DEVICE_ID5 || \ 571 adapter->pdev->device == OC_DEVICE_ID6) 572 573 #define BE3_chip(adapter) (adapter->pdev->device == BE_DEVICE_ID2 || \ 574 adapter->pdev->device == OC_DEVICE_ID2) 575 576 #define BE2_chip(adapter) (adapter->pdev->device == BE_DEVICE_ID1 || \ 577 adapter->pdev->device == OC_DEVICE_ID1) 578 579 #define BEx_chip(adapter) (BE3_chip(adapter) || BE2_chip(adapter)) 580 581 #define be_roce_supported(adapter) (skyhawk_chip(adapter) && \ 582 (adapter->function_mode & RDMA_ENABLED)) 583 584 extern const struct ethtool_ops be_ethtool_ops; 585 586 #define msix_enabled(adapter) (adapter->num_msix_vec > 0) 587 #define num_irqs(adapter) (msix_enabled(adapter) ? \ 588 adapter->num_msix_vec : 1) 589 #define tx_stats(txo) (&(txo)->stats) 590 #define rx_stats(rxo) (&(rxo)->stats) 591 592 /* The default RXQ is the last RXQ */ 593 #define default_rxo(adpt) (&adpt->rx_obj[adpt->num_rx_qs - 1]) 594 595 #define for_all_rx_queues(adapter, rxo, i) \ 596 for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs; \ 597 i++, rxo++) 598 599 /* Skip the default non-rss queue (last one)*/ 600 #define for_all_rss_queues(adapter, rxo, i) \ 601 for (i = 0, rxo = &adapter->rx_obj[i]; i < (adapter->num_rx_qs - 1);\ 602 i++, rxo++) 603 604 #define for_all_tx_queues(adapter, txo, i) \ 605 for (i = 0, txo = &adapter->tx_obj[i]; i < adapter->num_tx_qs; \ 606 i++, txo++) 607 608 #define for_all_evt_queues(adapter, eqo, i) \ 609 for (i = 0, eqo = &adapter->eq_obj[i]; i < adapter->num_evt_qs; \ 610 i++, eqo++) 611 612 #define for_all_rx_queues_on_eq(adapter, eqo, rxo, i) \ 613 for (i = eqo->idx, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs;\ 614 i += adapter->num_evt_qs, rxo += adapter->num_evt_qs) 615 616 #define for_all_tx_queues_on_eq(adapter, eqo, txo, i) \ 617 for (i = eqo->idx, txo = &adapter->tx_obj[i]; i < adapter->num_tx_qs;\ 618 i += adapter->num_evt_qs, txo += adapter->num_evt_qs) 619 620 #define is_mcc_eqo(eqo) (eqo->idx == 0) 621 #define mcc_eqo(adapter) (&adapter->eq_obj[0]) 622 623 #define PAGE_SHIFT_4K 12 624 #define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K) 625 626 /* Returns number of pages spanned by the data starting at the given addr */ 627 #define PAGES_4K_SPANNED(_address, size) \ 628 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \ 629 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K)) 630 631 /* Returns bit offset within a DWORD of a bitfield */ 632 #define AMAP_BIT_OFFSET(_struct, field) \ 633 (((size_t)&(((_struct *)0)->field))%32) 634 635 /* Returns the bit mask of the field that is NOT shifted into location. */ 636 static inline u32 amap_mask(u32 bitsize) 637 { 638 return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1); 639 } 640 641 static inline void 642 amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value) 643 { 644 u32 *dw = (u32 *) ptr + dw_offset; 645 *dw &= ~(mask << offset); 646 *dw |= (mask & value) << offset; 647 } 648 649 #define AMAP_SET_BITS(_struct, field, ptr, val) \ 650 amap_set(ptr, \ 651 offsetof(_struct, field)/32, \ 652 amap_mask(sizeof(((_struct *)0)->field)), \ 653 AMAP_BIT_OFFSET(_struct, field), \ 654 val) 655 656 static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset) 657 { 658 u32 *dw = (u32 *) ptr; 659 return mask & (*(dw + dw_offset) >> offset); 660 } 661 662 #define AMAP_GET_BITS(_struct, field, ptr) \ 663 amap_get(ptr, \ 664 offsetof(_struct, field)/32, \ 665 amap_mask(sizeof(((_struct *)0)->field)), \ 666 AMAP_BIT_OFFSET(_struct, field)) 667 668 #define GET_RX_COMPL_V0_BITS(field, ptr) \ 669 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, field, ptr) 670 671 #define GET_RX_COMPL_V1_BITS(field, ptr) \ 672 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, field, ptr) 673 674 #define GET_TX_COMPL_BITS(field, ptr) \ 675 AMAP_GET_BITS(struct amap_eth_tx_compl, field, ptr) 676 677 #define SET_TX_WRB_HDR_BITS(field, ptr, val) \ 678 AMAP_SET_BITS(struct amap_eth_hdr_wrb, field, ptr, val) 679 680 #define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len) 681 #define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len) 682 static inline void swap_dws(void *wrb, int len) 683 { 684 #ifdef __BIG_ENDIAN 685 u32 *dw = wrb; 686 BUG_ON(len % 4); 687 do { 688 *dw = cpu_to_le32(*dw); 689 dw++; 690 len -= 4; 691 } while (len); 692 #endif /* __BIG_ENDIAN */ 693 } 694 695 #define be_cmd_status(status) (status > 0 ? -EIO : status) 696 697 static inline u8 is_tcp_pkt(struct sk_buff *skb) 698 { 699 u8 val = 0; 700 701 if (ip_hdr(skb)->version == 4) 702 val = (ip_hdr(skb)->protocol == IPPROTO_TCP); 703 else if (ip_hdr(skb)->version == 6) 704 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP); 705 706 return val; 707 } 708 709 static inline u8 is_udp_pkt(struct sk_buff *skb) 710 { 711 u8 val = 0; 712 713 if (ip_hdr(skb)->version == 4) 714 val = (ip_hdr(skb)->protocol == IPPROTO_UDP); 715 else if (ip_hdr(skb)->version == 6) 716 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP); 717 718 return val; 719 } 720 721 static inline bool is_ipv4_pkt(struct sk_buff *skb) 722 { 723 return skb->protocol == htons(ETH_P_IP) && ip_hdr(skb)->version == 4; 724 } 725 726 static inline bool be_multi_rxq(const struct be_adapter *adapter) 727 { 728 return adapter->num_rx_qs > 1; 729 } 730 731 static inline bool be_error(struct be_adapter *adapter) 732 { 733 return adapter->eeh_error || adapter->hw_error || adapter->fw_timeout; 734 } 735 736 static inline bool be_hw_error(struct be_adapter *adapter) 737 { 738 return adapter->eeh_error || adapter->hw_error; 739 } 740 741 static inline void be_clear_all_error(struct be_adapter *adapter) 742 { 743 adapter->eeh_error = false; 744 adapter->hw_error = false; 745 adapter->fw_timeout = false; 746 } 747 748 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, 749 u16 num_popped); 750 void be_link_status_update(struct be_adapter *adapter, u8 link_status); 751 void be_parse_stats(struct be_adapter *adapter); 752 int be_load_fw(struct be_adapter *adapter, u8 *func); 753 bool be_is_wol_supported(struct be_adapter *adapter); 754 bool be_pause_supported(struct be_adapter *adapter); 755 u32 be_get_fw_log_level(struct be_adapter *adapter); 756 int be_update_queues(struct be_adapter *adapter); 757 int be_poll(struct napi_struct *napi, int budget); 758 759 /* 760 * internal function to initialize-cleanup roce device. 761 */ 762 void be_roce_dev_add(struct be_adapter *); 763 void be_roce_dev_remove(struct be_adapter *); 764 765 /* 766 * internal function to open-close roce device during ifup-ifdown. 767 */ 768 void be_roce_dev_open(struct be_adapter *); 769 void be_roce_dev_close(struct be_adapter *); 770 void be_roce_dev_shutdown(struct be_adapter *); 771 772 #endif /* BE_H */ 773