drivers/net/ethernet/qlogic/qed/qed_vf.c

   1 /* QLogic qed NIC Driver
   2  * Copyright (c) 2015 QLogic Corporation
   3  *
   4  * This software is available under the terms of the GNU General Public License
   5  * (GPL) Version 2, available from the file COPYING in the main directory of
   6  * this source tree.
   7  */
   8
   9 #include <linux/crc32.h>
  10 #include <linux/etherdevice.h>
  11 #include "qed.h"
  12 #include "qed_sriov.h"
  13 #include "qed_vf.h"
  14
  15 static void *qed_vf_pf_prep(struct qed_hwfn *p_hwfn, u16 type, u16 length)
  16 {
  17         struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
  18         void *p_tlv;
  19
  20         /* This lock is released when we receive PF's response
  21          * in qed_send_msg2pf().
  22          * So, qed_vf_pf_prep() and qed_send_msg2pf()
  23          * must come in sequence.
  24          */
  25         mutex_lock(&(p_iov->mutex));
  26
  27         DP_VERBOSE(p_hwfn,
  28                    QED_MSG_IOV,
  29                    "preparing to send 0x%04x tlv over vf pf channel\n",
  30                    type);
  31
  32         /* Reset Requst offset */
  33         p_iov->offset = (u8 *)p_iov->vf2pf_request;
  34
  35         /* Clear mailbox - both request and reply */
  36         memset(p_iov->vf2pf_request, 0, sizeof(union vfpf_tlvs));
  37         memset(p_iov->pf2vf_reply, 0, sizeof(union pfvf_tlvs));
  38
  39         /* Init type and length */
  40         p_tlv = qed_add_tlv(p_hwfn, &p_iov->offset, type, length);
  41
  42         /* Init first tlv header */
  43         ((struct vfpf_first_tlv *)p_tlv)->reply_address =
  44             (u64)p_iov->pf2vf_reply_phys;
  45
  46         return p_tlv;
  47 }
  48
  49 static void qed_vf_pf_req_end(struct qed_hwfn *p_hwfn, int req_status)
  50 {
  51         union pfvf_tlvs *resp = p_hwfn->vf_iov_info->pf2vf_reply;
  52
  53         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
  54                    "VF request status = 0x%x, PF reply status = 0x%x\n",
  55                    req_status, resp->default_resp.hdr.status);
  56
  57         mutex_unlock(&(p_hwfn->vf_iov_info->mutex));
  58 }
  59
  60 static int qed_send_msg2pf(struct qed_hwfn *p_hwfn, u8 *done, u32 resp_size)
  61 {
  62         union vfpf_tlvs *p_req = p_hwfn->vf_iov_info->vf2pf_request;
  63         struct ustorm_trigger_vf_zone trigger;
  64         struct ustorm_vf_zone *zone_data;
  65         int rc = 0, time = 100;
  66
  67         zone_data = (struct ustorm_vf_zone *)PXP_VF_BAR0_START_USDM_ZONE_B;
  68
  69         /* output tlvs list */
  70         qed_dp_tlv_list(p_hwfn, p_req);
  71
  72         /* need to add the END TLV to the message size */
  73         resp_size += sizeof(struct channel_list_end_tlv);
  74
  75         /* Send TLVs over HW channel */
  76         memset(&trigger, 0, sizeof(struct ustorm_trigger_vf_zone));
  77         trigger.vf_pf_msg_valid = 1;
  78
  79         DP_VERBOSE(p_hwfn,
  80                    QED_MSG_IOV,
  81                    "VF -> PF [%02x] message: [%08x, %08x] --> %p, %08x --> %p\n",
  82                    GET_FIELD(p_hwfn->hw_info.concrete_fid,
  83                              PXP_CONCRETE_FID_PFID),
  84                    upper_32_bits(p_hwfn->vf_iov_info->vf2pf_request_phys),
  85                    lower_32_bits(p_hwfn->vf_iov_info->vf2pf_request_phys),
  86                    &zone_data->non_trigger.vf_pf_msg_addr,
  87                    *((u32 *)&trigger), &zone_data->trigger);
  88
  89         REG_WR(p_hwfn,
  90                (uintptr_t)&zone_data->non_trigger.vf_pf_msg_addr.lo,
  91                lower_32_bits(p_hwfn->vf_iov_info->vf2pf_request_phys));
  92
  93         REG_WR(p_hwfn,
  94                (uintptr_t)&zone_data->non_trigger.vf_pf_msg_addr.hi,
  95                upper_32_bits(p_hwfn->vf_iov_info->vf2pf_request_phys));
  96
  97         /* The message data must be written first, to prevent trigger before
  98          * data is written.
  99          */
 100         wmb();
 101
 102         REG_WR(p_hwfn, (uintptr_t)&zone_data->trigger, *((u32 *)&trigger));
 103
 104         /* When PF would be done with the response, it would write back to the
 105          * `done' address. Poll until then.
 106          */
 107         while ((!*done) && time) {
 108                 msleep(25);
 109                 time--;
 110         }
 111
 112         if (!*done) {
 113                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
 114                            "VF <-- PF Timeout [Type %d]\n",
 115                            p_req->first_tlv.tl.type);
 116                 rc = -EBUSY;
 117         } else {
 118                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
 119                            "PF response: %d [Type %d]\n",
 120                            *done, p_req->first_tlv.tl.type);
 121         }
 122
 123         return rc;
 124 }
 125
 126 #define VF_ACQUIRE_THRESH 3
 127 static void qed_vf_pf_acquire_reduce_resc(struct qed_hwfn *p_hwfn,
 128                                           struct vf_pf_resc_request *p_req,
 129                                           struct pf_vf_resc *p_resp)
 130 {
 131         DP_VERBOSE(p_hwfn,
 132                    QED_MSG_IOV,
 133                    "PF unwilling to fullill resource request: rxq [%02x/%02x] txq [%02x/%02x] sbs [%02x/%02x] mac [%02x/%02x] vlan [%02x/%02x] mc [%02x/%02x]. Try PF recommended amount\n",
 134                    p_req->num_rxqs,
 135                    p_resp->num_rxqs,
 136                    p_req->num_rxqs,
 137                    p_resp->num_txqs,
 138                    p_req->num_sbs,
 139                    p_resp->num_sbs,
 140                    p_req->num_mac_filters,
 141                    p_resp->num_mac_filters,
 142                    p_req->num_vlan_filters,
 143                    p_resp->num_vlan_filters,
 144                    p_req->num_mc_filters, p_resp->num_mc_filters);
 145
 146         /* humble our request */
 147         p_req->num_txqs = p_resp->num_txqs;
 148         p_req->num_rxqs = p_resp->num_rxqs;
 149         p_req->num_sbs = p_resp->num_sbs;
 150         p_req->num_mac_filters = p_resp->num_mac_filters;
 151         p_req->num_vlan_filters = p_resp->num_vlan_filters;
 152         p_req->num_mc_filters = p_resp->num_mc_filters;
 153 }
 154
 155 static int qed_vf_pf_acquire(struct qed_hwfn *p_hwfn)
 156 {
 157         struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
 158         struct pfvf_acquire_resp_tlv *resp = &p_iov->pf2vf_reply->acquire_resp;
 159         struct pf_vf_pfdev_info *pfdev_info = &resp->pfdev_info;
 160         struct vf_pf_resc_request *p_resc;
 161         bool resources_acquired = false;
 162         struct vfpf_acquire_tlv *req;
 163         int rc = 0, attempts = 0;
 164
 165         /* clear mailbox and prep first tlv */
 166         req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_ACQUIRE, sizeof(*req));
 167         p_resc = &req->resc_request;
 168
 169         /* starting filling the request */
 170         req->vfdev_info.opaque_fid = p_hwfn->hw_info.opaque_fid;
 171
 172         p_resc->num_rxqs = QED_MAX_VF_CHAINS_PER_PF;
 173         p_resc->num_txqs = QED_MAX_VF_CHAINS_PER_PF;
 174         p_resc->num_sbs = QED_MAX_VF_CHAINS_PER_PF;
 175         p_resc->num_mac_filters = QED_ETH_VF_NUM_MAC_FILTERS;
 176         p_resc->num_vlan_filters = QED_ETH_VF_NUM_VLAN_FILTERS;
 177
 178         req->vfdev_info.os_type = VFPF_ACQUIRE_OS_LINUX;
 179         req->vfdev_info.fw_major = FW_MAJOR_VERSION;
 180         req->vfdev_info.fw_minor = FW_MINOR_VERSION;
 181         req->vfdev_info.fw_revision = FW_REVISION_VERSION;
 182         req->vfdev_info.fw_engineering = FW_ENGINEERING_VERSION;
 183         req->vfdev_info.eth_fp_hsi_major = ETH_HSI_VER_MAJOR;
 184         req->vfdev_info.eth_fp_hsi_minor = ETH_HSI_VER_MINOR;
 185
 186         /* Fill capability field with any non-deprecated config we support */
 187         req->vfdev_info.capabilities |= VFPF_ACQUIRE_CAP_100G;
 188
 189         /* pf 2 vf bulletin board address */
 190         req->bulletin_addr = p_iov->bulletin.phys;
 191         req->bulletin_size = p_iov->bulletin.size;
 192
 193         /* add list termination tlv */
 194         qed_add_tlv(p_hwfn, &p_iov->offset,
 195                     CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
 196
 197         while (!resources_acquired) {
 198                 DP_VERBOSE(p_hwfn,
 199                            QED_MSG_IOV, "attempting to acquire resources\n");
 200
 201                 /* Clear response buffer, as this might be a re-send */
 202                 memset(p_iov->pf2vf_reply, 0, sizeof(union pfvf_tlvs));
 203
 204                 /* send acquire request */
 205                 rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
 206                 if (rc)
 207                         return rc;
 208
 209                 /* copy acquire response from buffer to p_hwfn */
 210                 memcpy(&p_iov->acquire_resp, resp, sizeof(p_iov->acquire_resp));
 211
 212                 attempts++;
 213
 214                 if (resp->hdr.status == PFVF_STATUS_SUCCESS) {
 215                         /* PF agrees to allocate our resources */
 216                         if (!(resp->pfdev_info.capabilities &
 217                               PFVF_ACQUIRE_CAP_POST_FW_OVERRIDE)) {
 218                                 /* It's possible legacy PF mistakenly accepted;
 219                                  * but we don't care - simply mark it as
 220                                  * legacy and continue.
 221                                  */
 222                                 req->vfdev_info.capabilities |=
 223                                     VFPF_ACQUIRE_CAP_PRE_FP_HSI;
 224                         }
 225                         DP_VERBOSE(p_hwfn, QED_MSG_IOV, "resources acquired\n");
 226                         resources_acquired = true;
 227                 } else if (resp->hdr.status == PFVF_STATUS_NO_RESOURCE &&
 228                            attempts < VF_ACQUIRE_THRESH) {
 229                         qed_vf_pf_acquire_reduce_resc(p_hwfn, p_resc,
 230                                                       &resp->resc);
 231                 } else if (resp->hdr.status == PFVF_STATUS_NOT_SUPPORTED) {
 232                         if (pfdev_info->major_fp_hsi &&
 233                             (pfdev_info->major_fp_hsi != ETH_HSI_VER_MAJOR)) {
 234                                 DP_NOTICE(p_hwfn,
 235                                           "PF uses an incompatible fastpath HSI %02x.%02x [VF requires %02x.%02x]. Please change to a VF driver using %02x.xx.\n",
 236                                           pfdev_info->major_fp_hsi,
 237                                           pfdev_info->minor_fp_hsi,
 238                                           ETH_HSI_VER_MAJOR,
 239                                           ETH_HSI_VER_MINOR,
 240                                           pfdev_info->major_fp_hsi);
 241                                 rc = -EINVAL;
 242                                 goto exit;
 243                         }
 244
 245                         if (!pfdev_info->major_fp_hsi) {
 246                                 if (req->vfdev_info.capabilities &
 247                                     VFPF_ACQUIRE_CAP_PRE_FP_HSI) {
 248                                         DP_NOTICE(p_hwfn,
 249                                                   "PF uses very old drivers. Please change to a VF driver using no later than 8.8.x.x.\n");
 250                                         rc = -EINVAL;
 251                                         goto exit;
 252                                 } else {
 253                                         DP_INFO(p_hwfn,
 254                                                 "PF is old - try re-acquire to see if it supports FW-version override\n");
 255                                         req->vfdev_info.capabilities |=
 256                                             VFPF_ACQUIRE_CAP_PRE_FP_HSI;
 257                                         continue;
 258                                 }
 259                         }
 260
 261                         /* If PF/VF are using same Major, PF must have had
 262                          * it's reasons. Simply fail.
 263                          */
 264                         DP_NOTICE(p_hwfn, "PF rejected acquisition by VF\n");
 265                         rc = -EINVAL;
 266                         goto exit;
 267                 } else {
 268                         DP_ERR(p_hwfn,
 269                                "PF returned error %d to VF acquisition request\n",
 270                                resp->hdr.status);
 271                         rc = -EAGAIN;
 272                         goto exit;
 273                 }
 274         }
 275
 276         /* Mark the PF as legacy, if needed */
 277         if (req->vfdev_info.capabilities & VFPF_ACQUIRE_CAP_PRE_FP_HSI)
 278                 p_iov->b_pre_fp_hsi = true;
 279
 280         /* Update bulletin board size with response from PF */
 281         p_iov->bulletin.size = resp->bulletin_size;
 282
 283         /* get HW info */
 284         p_hwfn->cdev->type = resp->pfdev_info.dev_type;
 285         p_hwfn->cdev->chip_rev = resp->pfdev_info.chip_rev;
 286
 287         p_hwfn->cdev->chip_num = pfdev_info->chip_num & 0xffff;
 288
 289         /* Learn of the possibility of CMT */
 290         if (IS_LEAD_HWFN(p_hwfn)) {
 291                 if (resp->pfdev_info.capabilities & PFVF_ACQUIRE_CAP_100G) {
 292                         DP_NOTICE(p_hwfn, "100g VF\n");
 293                         p_hwfn->cdev->num_hwfns = 2;
 294                 }
 295         }
 296
 297         if (!p_iov->b_pre_fp_hsi &&
 298             ETH_HSI_VER_MINOR &&
 299             (resp->pfdev_info.minor_fp_hsi < ETH_HSI_VER_MINOR)) {
 300                 DP_INFO(p_hwfn,
 301                         "PF is using older fastpath HSI; %02x.%02x is configured\n",
 302                         ETH_HSI_VER_MAJOR, resp->pfdev_info.minor_fp_hsi);
 303         }
 304
 305 exit:
 306         qed_vf_pf_req_end(p_hwfn, rc);
 307
 308         return rc;
 309 }
 310
 311 int qed_vf_hw_prepare(struct qed_hwfn *p_hwfn)
 312 {
 313         struct qed_vf_iov *p_iov;
 314         u32 reg;
 315
 316         /* Set number of hwfns - might be overriden once leading hwfn learns
 317          * actual configuration from PF.
 318          */
 319         if (IS_LEAD_HWFN(p_hwfn))
 320                 p_hwfn->cdev->num_hwfns = 1;
 321
 322         /* Set the doorbell bar. Assumption: regview is set */
 323         p_hwfn->doorbells = (u8 __iomem *)p_hwfn->regview +
 324                                           PXP_VF_BAR0_START_DQ;
 325
 326         reg = PXP_VF_BAR0_ME_OPAQUE_ADDRESS;
 327         p_hwfn->hw_info.opaque_fid = (u16)REG_RD(p_hwfn, reg);
 328
 329         reg = PXP_VF_BAR0_ME_CONCRETE_ADDRESS;
 330         p_hwfn->hw_info.concrete_fid = REG_RD(p_hwfn, reg);
 331
 332         /* Allocate vf sriov info */
 333         p_iov = kzalloc(sizeof(*p_iov), GFP_KERNEL);
 334         if (!p_iov)
 335                 return -ENOMEM;
 336
 337         /* Allocate vf2pf msg */
 338         p_iov->vf2pf_request = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 339                                                   sizeof(union vfpf_tlvs),
 340                                                   &p_iov->vf2pf_request_phys,
 341                                                   GFP_KERNEL);
 342         if (!p_iov->vf2pf_request)
 343                 goto free_p_iov;
 344
 345         p_iov->pf2vf_reply = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 346                                                 sizeof(union pfvf_tlvs),
 347                                                 &p_iov->pf2vf_reply_phys,
 348                                                 GFP_KERNEL);
 349         if (!p_iov->pf2vf_reply)
 350                 goto free_vf2pf_request;
 351
 352         DP_VERBOSE(p_hwfn,
 353                    QED_MSG_IOV,
 354                    "VF's Request mailbox [%p virt 0x%llx phys], Response mailbox [%p virt 0x%llx phys]\n",
 355                    p_iov->vf2pf_request,
 356                    (u64) p_iov->vf2pf_request_phys,
 357                    p_iov->pf2vf_reply, (u64)p_iov->pf2vf_reply_phys);
 358
 359         /* Allocate Bulletin board */
 360         p_iov->bulletin.size = sizeof(struct qed_bulletin_content);
 361         p_iov->bulletin.p_virt = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 362                                                     p_iov->bulletin.size,
 363                                                     &p_iov->bulletin.phys,
 364                                                     GFP_KERNEL);
 365         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
 366                    "VF's bulletin Board [%p virt 0x%llx phys 0x%08x bytes]\n",
 367                    p_iov->bulletin.p_virt,
 368                    (u64)p_iov->bulletin.phys, p_iov->bulletin.size);
 369
 370         mutex_init(&p_iov->mutex);
 371
 372         p_hwfn->vf_iov_info = p_iov;
 373
 374         p_hwfn->hw_info.personality = QED_PCI_ETH;
 375
 376         return qed_vf_pf_acquire(p_hwfn);
 377
 378 free_vf2pf_request:
 379         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 380                           sizeof(union vfpf_tlvs),
 381                           p_iov->vf2pf_request, p_iov->vf2pf_request_phys);
 382 free_p_iov:
 383         kfree(p_iov);
 384
 385         return -ENOMEM;
 386 }
 387 #define TSTORM_QZONE_START   PXP_VF_BAR0_START_SDM_ZONE_A
 388 #define MSTORM_QZONE_START(dev)   (TSTORM_QZONE_START + \
 389                                    (TSTORM_QZONE_SIZE * NUM_OF_L2_QUEUES(dev)))
 390
 391 int qed_vf_pf_rxq_start(struct qed_hwfn *p_hwfn,
 392                         u8 rx_qid,
 393                         u16 sb,
 394                         u8 sb_index,
 395                         u16 bd_max_bytes,
 396                         dma_addr_t bd_chain_phys_addr,
 397                         dma_addr_t cqe_pbl_addr,
 398                         u16 cqe_pbl_size, void __iomem **pp_prod)
 399 {
 400         struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
 401         struct pfvf_start_queue_resp_tlv *resp;
 402         struct vfpf_start_rxq_tlv *req;
 403         int rc;
 404
 405         /* clear mailbox and prep first tlv */
 406         req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_START_RXQ, sizeof(*req));
 407
 408         req->rx_qid = rx_qid;
 409         req->cqe_pbl_addr = cqe_pbl_addr;
 410         req->cqe_pbl_size = cqe_pbl_size;
 411         req->rxq_addr = bd_chain_phys_addr;
 412         req->hw_sb = sb;
 413         req->sb_index = sb_index;
 414         req->bd_max_bytes = bd_max_bytes;
 415         req->stat_id = -1;
 416
 417         /* If PF is legacy, we'll need to calculate producers ourselves
 418          * as well as clean them.
 419          */
 420         if (pp_prod && p_iov->b_pre_fp_hsi) {
 421                 u8 hw_qid = p_iov->acquire_resp.resc.hw_qid[rx_qid];
 422                 u32 init_prod_val = 0;
 423
 424                 *pp_prod = (u8 __iomem *)p_hwfn->regview +
 425                                          MSTORM_QZONE_START(p_hwfn->cdev) +
 426                                          hw_qid * MSTORM_QZONE_SIZE;
 427
 428                 /* Init the rcq, rx bd and rx sge (if valid) producers to 0 */
 429                 __internal_ram_wr(p_hwfn, *pp_prod, sizeof(u32),
 430                                   (u32 *)(&init_prod_val));
 431         }
 432         /* add list termination tlv */
 433         qed_add_tlv(p_hwfn, &p_iov->offset,
 434                     CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
 435
 436         resp = &p_iov->pf2vf_reply->queue_start;
 437         rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
 438         if (rc)
 439                 goto exit;
 440
 441         if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
 442                 rc = -EINVAL;
 443                 goto exit;
 444         }
 445
 446         /* Learn the address of the producer from the response */
 447         if (pp_prod && !p_iov->b_pre_fp_hsi) {
 448                 u32 init_prod_val = 0;
 449
 450                 *pp_prod = (u8 __iomem *)p_hwfn->regview + resp->offset;
 451                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
 452                            "Rxq[0x%02x]: producer at %p [offset 0x%08x]\n",
 453                            rx_qid, *pp_prod, resp->offset);
 454
 455                 /* Init the rcq, rx bd and rx sge (if valid) producers to 0 */
 456                 __internal_ram_wr(p_hwfn, *pp_prod, sizeof(u32),
 457                                   (u32 *)&init_prod_val);
 458         }
 459 exit:
 460         qed_vf_pf_req_end(p_hwfn, rc);
 461
 462         return rc;
 463 }
 464
 465 int qed_vf_pf_rxq_stop(struct qed_hwfn *p_hwfn, u16 rx_qid, bool cqe_completion)
 466 {
 467         struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
 468         struct vfpf_stop_rxqs_tlv *req;
 469         struct pfvf_def_resp_tlv *resp;
 470         int rc;
 471
 472         /* clear mailbox and prep first tlv */
 473         req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_STOP_RXQS, sizeof(*req));
 474
 475         req->rx_qid = rx_qid;
 476         req->num_rxqs = 1;
 477         req->cqe_completion = cqe_completion;
 478
 479         /* add list termination tlv */
 480         qed_add_tlv(p_hwfn, &p_iov->offset,
 481                     CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
 482
 483         resp = &p_iov->pf2vf_reply->default_resp;
 484         rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
 485         if (rc)
 486                 goto exit;
 487
 488         if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
 489                 rc = -EINVAL;
 490                 goto exit;
 491         }
 492
 493 exit:
 494         qed_vf_pf_req_end(p_hwfn, rc);
 495
 496         return rc;
 497 }
 498
 499 int qed_vf_pf_txq_start(struct qed_hwfn *p_hwfn,
 500                         u16 tx_queue_id,
 501                         u16 sb,
 502                         u8 sb_index,
 503                         dma_addr_t pbl_addr,
 504                         u16 pbl_size, void __iomem **pp_doorbell)
 505 {
 506         struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
 507         struct pfvf_start_queue_resp_tlv *resp;
 508         struct vfpf_start_txq_tlv *req;
 509         int rc;
 510
 511         /* clear mailbox and prep first tlv */
 512         req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_START_TXQ, sizeof(*req));
 513
 514         req->tx_qid = tx_queue_id;
 515
 516         /* Tx */
 517         req->pbl_addr = pbl_addr;
 518         req->pbl_size = pbl_size;
 519         req->hw_sb = sb;
 520         req->sb_index = sb_index;
 521
 522         /* add list termination tlv */
 523         qed_add_tlv(p_hwfn, &p_iov->offset,
 524                     CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
 525
 526         resp = &p_iov->pf2vf_reply->queue_start;
 527         rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
 528         if (rc)
 529                 goto exit;
 530
 531         if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
 532                 rc = -EINVAL;
 533                 goto exit;
 534         }
 535
 536         if (pp_doorbell) {
 537                 /* Modern PFs provide the actual offsets, while legacy
 538                  * provided only the queue id.
 539                  */
 540                 if (!p_iov->b_pre_fp_hsi) {
 541                         *pp_doorbell = (u8 __iomem *)p_hwfn->doorbells +
 542                                                      resp->offset;
 543                 } else {
 544                         u8 cid = p_iov->acquire_resp.resc.cid[tx_queue_id];
 545                         u32 db_addr;
 546
 547                         db_addr = qed_db_addr(cid, DQ_DEMS_LEGACY);
 548                         *pp_doorbell = (u8 __iomem *)p_hwfn->doorbells +
 549                                                      db_addr;
 550                 }
 551
 552                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
 553                            "Txq[0x%02x]: doorbell at %p [offset 0x%08x]\n",
 554                            tx_queue_id, *pp_doorbell, resp->offset);
 555         }
 556 exit:
 557         qed_vf_pf_req_end(p_hwfn, rc);
 558
 559         return rc;
 560 }
 561
 562 int qed_vf_pf_txq_stop(struct qed_hwfn *p_hwfn, u16 tx_qid)
 563 {
 564         struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
 565         struct vfpf_stop_txqs_tlv *req;
 566         struct pfvf_def_resp_tlv *resp;
 567         int rc;
 568
 569         /* clear mailbox and prep first tlv */
 570         req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_STOP_TXQS, sizeof(*req));
 571
 572         req->tx_qid = tx_qid;
 573         req->num_txqs = 1;
 574
 575         /* add list termination tlv */
 576         qed_add_tlv(p_hwfn, &p_iov->offset,
 577                     CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
 578
 579         resp = &p_iov->pf2vf_reply->default_resp;
 580         rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
 581         if (rc)
 582                 goto exit;
 583
 584         if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
 585                 rc = -EINVAL;
 586                 goto exit;
 587         }
 588
 589 exit:
 590         qed_vf_pf_req_end(p_hwfn, rc);
 591
 592         return rc;
 593 }
 594
 595 int qed_vf_pf_vport_start(struct qed_hwfn *p_hwfn,
 596                           u8 vport_id,
 597                           u16 mtu,
 598                           u8 inner_vlan_removal,
 599                           enum qed_tpa_mode tpa_mode,
 600                           u8 max_buffers_per_cqe, u8 only_untagged)
 601 {
 602         struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
 603         struct vfpf_vport_start_tlv *req;
 604         struct pfvf_def_resp_tlv *resp;
 605         int rc, i;
 606
 607         /* clear mailbox and prep first tlv */
 608         req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_VPORT_START, sizeof(*req));
 609
 610         req->mtu = mtu;
 611         req->vport_id = vport_id;
 612         req->inner_vlan_removal = inner_vlan_removal;
 613         req->tpa_mode = tpa_mode;
 614         req->max_buffers_per_cqe = max_buffers_per_cqe;
 615         req->only_untagged = only_untagged;
 616
 617         /* status blocks */
 618         for (i = 0; i < p_hwfn->vf_iov_info->acquire_resp.resc.num_sbs; i++)
 619                 if (p_hwfn->sbs_info[i])
 620                         req->sb_addr[i] = p_hwfn->sbs_info[i]->sb_phys;
 621
 622         /* add list termination tlv */
 623         qed_add_tlv(p_hwfn, &p_iov->offset,
 624                     CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
 625
 626         resp = &p_iov->pf2vf_reply->default_resp;
 627         rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
 628         if (rc)
 629                 goto exit;
 630
 631         if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
 632                 rc = -EINVAL;
 633                 goto exit;
 634         }
 635
 636 exit:
 637         qed_vf_pf_req_end(p_hwfn, rc);
 638
 639         return rc;
 640 }
 641
 642 int qed_vf_pf_vport_stop(struct qed_hwfn *p_hwfn)
 643 {
 644         struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
 645         struct pfvf_def_resp_tlv *resp = &p_iov->pf2vf_reply->default_resp;
 646         int rc;
 647
 648         /* clear mailbox and prep first tlv */
 649         qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_VPORT_TEARDOWN,
 650                        sizeof(struct vfpf_first_tlv));
 651
 652         /* add list termination tlv */
 653         qed_add_tlv(p_hwfn, &p_iov->offset,
 654                     CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
 655
 656         rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
 657         if (rc)
 658                 goto exit;
 659
 660         if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
 661                 rc = -EINVAL;
 662                 goto exit;
 663         }
 664
 665 exit:
 666         qed_vf_pf_req_end(p_hwfn, rc);
 667
 668         return rc;
 669 }
 670
 671 static bool
 672 qed_vf_handle_vp_update_is_needed(struct qed_hwfn *p_hwfn,
 673                                   struct qed_sp_vport_update_params *p_data,
 674                                   u16 tlv)
 675 {
 676         switch (tlv) {
 677         case CHANNEL_TLV_VPORT_UPDATE_ACTIVATE:
 678                 return !!(p_data->update_vport_active_rx_flg ||
 679                           p_data->update_vport_active_tx_flg);
 680         case CHANNEL_TLV_VPORT_UPDATE_TX_SWITCH:
 681                 return !!p_data->update_tx_switching_flg;
 682         case CHANNEL_TLV_VPORT_UPDATE_VLAN_STRIP:
 683                 return !!p_data->update_inner_vlan_removal_flg;
 684         case CHANNEL_TLV_VPORT_UPDATE_ACCEPT_ANY_VLAN:
 685                 return !!p_data->update_accept_any_vlan_flg;
 686         case CHANNEL_TLV_VPORT_UPDATE_MCAST:
 687                 return !!p_data->update_approx_mcast_flg;
 688         case CHANNEL_TLV_VPORT_UPDATE_ACCEPT_PARAM:
 689                 return !!(p_data->accept_flags.update_rx_mode_config ||
 690                           p_data->accept_flags.update_tx_mode_config);
 691         case CHANNEL_TLV_VPORT_UPDATE_RSS:
 692                 return !!p_data->rss_params;
 693         case CHANNEL_TLV_VPORT_UPDATE_SGE_TPA:
 694                 return !!p_data->sge_tpa_params;
 695         default:
 696                 DP_INFO(p_hwfn, "Unexpected vport-update TLV[%d]\n",
 697                         tlv);
 698                 return false;
 699         }
 700 }
 701
 702 static void
 703 qed_vf_handle_vp_update_tlvs_resp(struct qed_hwfn *p_hwfn,
 704                                   struct qed_sp_vport_update_params *p_data)
 705 {
 706         struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
 707         struct pfvf_def_resp_tlv *p_resp;
 708         u16 tlv;
 709
 710         for (tlv = CHANNEL_TLV_VPORT_UPDATE_ACTIVATE;
 711              tlv < CHANNEL_TLV_VPORT_UPDATE_MAX; tlv++) {
 712                 if (!qed_vf_handle_vp_update_is_needed(p_hwfn, p_data, tlv))
 713                         continue;
 714
 715                 p_resp = (struct pfvf_def_resp_tlv *)
 716                          qed_iov_search_list_tlvs(p_hwfn, p_iov->pf2vf_reply,
 717                                                   tlv);
 718                 if (p_resp && p_resp->hdr.status)
 719                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
 720                                    "TLV[%d] Configuration %s\n",
 721                                    tlv,
 722                                    (p_resp && p_resp->hdr.status) ? "succeeded"
 723                                                                   : "failed");
 724         }
 725 }
 726
 727 int qed_vf_pf_vport_update(struct qed_hwfn *p_hwfn,
 728                            struct qed_sp_vport_update_params *p_params)
 729 {
 730         struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
 731         struct vfpf_vport_update_tlv *req;
 732         struct pfvf_def_resp_tlv *resp;
 733         u8 update_rx, update_tx;
 734         u32 resp_size = 0;
 735         u16 size, tlv;
 736         int rc;
 737
 738         resp = &p_iov->pf2vf_reply->default_resp;
 739         resp_size = sizeof(*resp);
 740
 741         update_rx = p_params->update_vport_active_rx_flg;
 742         update_tx = p_params->update_vport_active_tx_flg;
 743
 744         /* clear mailbox and prep header tlv */
 745         qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_VPORT_UPDATE, sizeof(*req));
 746
 747         /* Prepare extended tlvs */
 748         if (update_rx || update_tx) {
 749                 struct vfpf_vport_update_activate_tlv *p_act_tlv;
 750
 751                 size = sizeof(struct vfpf_vport_update_activate_tlv);
 752                 p_act_tlv = qed_add_tlv(p_hwfn, &p_iov->offset,
 753                                         CHANNEL_TLV_VPORT_UPDATE_ACTIVATE,
 754                                         size);
 755                 resp_size += sizeof(struct pfvf_def_resp_tlv);
 756
 757                 if (update_rx) {
 758                         p_act_tlv->update_rx = update_rx;
 759                         p_act_tlv->active_rx = p_params->vport_active_rx_flg;
 760                 }
 761
 762                 if (update_tx) {
 763                         p_act_tlv->update_tx = update_tx;
 764                         p_act_tlv->active_tx = p_params->vport_active_tx_flg;
 765                 }
 766         }
 767
 768         if (p_params->update_tx_switching_flg) {
 769                 struct vfpf_vport_update_tx_switch_tlv *p_tx_switch_tlv;
 770
 771                 size = sizeof(struct vfpf_vport_update_tx_switch_tlv);
 772                 tlv = CHANNEL_TLV_VPORT_UPDATE_TX_SWITCH;
 773                 p_tx_switch_tlv = qed_add_tlv(p_hwfn, &p_iov->offset,
 774                                               tlv, size);
 775                 resp_size += sizeof(struct pfvf_def_resp_tlv);
 776
 777                 p_tx_switch_tlv->tx_switching = p_params->tx_switching_flg;
 778         }
 779
 780         if (p_params->update_approx_mcast_flg) {
 781                 struct vfpf_vport_update_mcast_bin_tlv *p_mcast_tlv;
 782
 783                 size = sizeof(struct vfpf_vport_update_mcast_bin_tlv);
 784                 p_mcast_tlv = qed_add_tlv(p_hwfn, &p_iov->offset,
 785                                           CHANNEL_TLV_VPORT_UPDATE_MCAST, size);
 786                 resp_size += sizeof(struct pfvf_def_resp_tlv);
 787
 788                 memcpy(p_mcast_tlv->bins, p_params->bins,
 789                        sizeof(unsigned long) * ETH_MULTICAST_MAC_BINS_IN_REGS);
 790         }
 791
 792         update_rx = p_params->accept_flags.update_rx_mode_config;
 793         update_tx = p_params->accept_flags.update_tx_mode_config;
 794
 795         if (update_rx || update_tx) {
 796                 struct vfpf_vport_update_accept_param_tlv *p_accept_tlv;
 797
 798                 tlv = CHANNEL_TLV_VPORT_UPDATE_ACCEPT_PARAM;
 799                 size = sizeof(struct vfpf_vport_update_accept_param_tlv);
 800                 p_accept_tlv = qed_add_tlv(p_hwfn, &p_iov->offset, tlv, size);
 801                 resp_size += sizeof(struct pfvf_def_resp_tlv);
 802
 803                 if (update_rx) {
 804                         p_accept_tlv->update_rx_mode = update_rx;
 805                         p_accept_tlv->rx_accept_filter =
 806                             p_params->accept_flags.rx_accept_filter;
 807                 }
 808
 809                 if (update_tx) {
 810                         p_accept_tlv->update_tx_mode = update_tx;
 811                         p_accept_tlv->tx_accept_filter =
 812                             p_params->accept_flags.tx_accept_filter;
 813                 }
 814         }
 815
 816         if (p_params->rss_params) {
 817                 struct qed_rss_params *rss_params = p_params->rss_params;
 818                 struct vfpf_vport_update_rss_tlv *p_rss_tlv;
 819
 820                 size = sizeof(struct vfpf_vport_update_rss_tlv);
 821                 p_rss_tlv = qed_add_tlv(p_hwfn,
 822                                         &p_iov->offset,
 823                                         CHANNEL_TLV_VPORT_UPDATE_RSS, size);
 824                 resp_size += sizeof(struct pfvf_def_resp_tlv);
 825
 826                 if (rss_params->update_rss_config)
 827                         p_rss_tlv->update_rss_flags |=
 828                             VFPF_UPDATE_RSS_CONFIG_FLAG;
 829                 if (rss_params->update_rss_capabilities)
 830                         p_rss_tlv->update_rss_flags |=
 831                             VFPF_UPDATE_RSS_CAPS_FLAG;
 832                 if (rss_params->update_rss_ind_table)
 833                         p_rss_tlv->update_rss_flags |=
 834                             VFPF_UPDATE_RSS_IND_TABLE_FLAG;
 835                 if (rss_params->update_rss_key)
 836                         p_rss_tlv->update_rss_flags |= VFPF_UPDATE_RSS_KEY_FLAG;
 837
 838                 p_rss_tlv->rss_enable = rss_params->rss_enable;
 839                 p_rss_tlv->rss_caps = rss_params->rss_caps;
 840                 p_rss_tlv->rss_table_size_log = rss_params->rss_table_size_log;
 841                 memcpy(p_rss_tlv->rss_ind_table, rss_params->rss_ind_table,
 842                        sizeof(rss_params->rss_ind_table));
 843                 memcpy(p_rss_tlv->rss_key, rss_params->rss_key,
 844                        sizeof(rss_params->rss_key));
 845         }
 846
 847         if (p_params->update_accept_any_vlan_flg) {
 848                 struct vfpf_vport_update_accept_any_vlan_tlv *p_any_vlan_tlv;
 849
 850                 size = sizeof(struct vfpf_vport_update_accept_any_vlan_tlv);
 851                 tlv = CHANNEL_TLV_VPORT_UPDATE_ACCEPT_ANY_VLAN;
 852                 p_any_vlan_tlv = qed_add_tlv(p_hwfn, &p_iov->offset, tlv, size);
 853
 854                 resp_size += sizeof(struct pfvf_def_resp_tlv);
 855                 p_any_vlan_tlv->accept_any_vlan = p_params->accept_any_vlan;
 856                 p_any_vlan_tlv->update_accept_any_vlan_flg =
 857                     p_params->update_accept_any_vlan_flg;
 858         }
 859
 860         /* add list termination tlv */
 861         qed_add_tlv(p_hwfn, &p_iov->offset,
 862                     CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
 863
 864         rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, resp_size);
 865         if (rc)
 866                 goto exit;
 867
 868         if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
 869                 rc = -EINVAL;
 870                 goto exit;
 871         }
 872
 873         qed_vf_handle_vp_update_tlvs_resp(p_hwfn, p_params);
 874
 875 exit:
 876         qed_vf_pf_req_end(p_hwfn, rc);
 877
 878         return rc;
 879 }
 880
 881 int qed_vf_pf_reset(struct qed_hwfn *p_hwfn)
 882 {
 883         struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
 884         struct pfvf_def_resp_tlv *resp;
 885         struct vfpf_first_tlv *req;
 886         int rc;
 887
 888         /* clear mailbox and prep first tlv */
 889         req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_CLOSE, sizeof(*req));
 890
 891         /* add list termination tlv */
 892         qed_add_tlv(p_hwfn, &p_iov->offset,
 893                     CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
 894
 895         resp = &p_iov->pf2vf_reply->default_resp;
 896         rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
 897         if (rc)
 898                 goto exit;
 899
 900         if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
 901                 rc = -EAGAIN;
 902                 goto exit;
 903         }
 904
 905         p_hwfn->b_int_enabled = 0;
 906
 907 exit:
 908         qed_vf_pf_req_end(p_hwfn, rc);
 909
 910         return rc;
 911 }
 912
 913 int qed_vf_pf_release(struct qed_hwfn *p_hwfn)
 914 {
 915         struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
 916         struct pfvf_def_resp_tlv *resp;
 917         struct vfpf_first_tlv *req;
 918         u32 size;
 919         int rc;
 920
 921         /* clear mailbox and prep first tlv */
 922         req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_RELEASE, sizeof(*req));
 923
 924         /* add list termination tlv */
 925         qed_add_tlv(p_hwfn, &p_iov->offset,
 926                     CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
 927
 928         resp = &p_iov->pf2vf_reply->default_resp;
 929         rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
 930
 931         if (!rc && resp->hdr.status != PFVF_STATUS_SUCCESS)
 932                 rc = -EAGAIN;
 933
 934         qed_vf_pf_req_end(p_hwfn, rc);
 935
 936         p_hwfn->b_int_enabled = 0;
 937
 938         if (p_iov->vf2pf_request)
 939                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 940                                   sizeof(union vfpf_tlvs),
 941                                   p_iov->vf2pf_request,
 942                                   p_iov->vf2pf_request_phys);
 943         if (p_iov->pf2vf_reply)
 944                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 945                                   sizeof(union pfvf_tlvs),
 946                                   p_iov->pf2vf_reply, p_iov->pf2vf_reply_phys);
 947
 948         if (p_iov->bulletin.p_virt) {
 949                 size = sizeof(struct qed_bulletin_content);
 950                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 951                                   size,
 952                                   p_iov->bulletin.p_virt, p_iov->bulletin.phys);
 953         }
 954
 955         kfree(p_hwfn->vf_iov_info);
 956         p_hwfn->vf_iov_info = NULL;
 957
 958         return rc;
 959 }
 960
 961 void qed_vf_pf_filter_mcast(struct qed_hwfn *p_hwfn,
 962                             struct qed_filter_mcast *p_filter_cmd)
 963 {
 964         struct qed_sp_vport_update_params sp_params;
 965         int i;
 966
 967         memset(&sp_params, 0, sizeof(sp_params));
 968         sp_params.update_approx_mcast_flg = 1;
 969
 970         if (p_filter_cmd->opcode == QED_FILTER_ADD) {
 971                 for (i = 0; i < p_filter_cmd->num_mc_addrs; i++) {
 972                         u32 bit;
 973
 974                         bit = qed_mcast_bin_from_mac(p_filter_cmd->mac[i]);
 975                         __set_bit(bit, sp_params.bins);
 976                 }
 977         }
 978
 979         qed_vf_pf_vport_update(p_hwfn, &sp_params);
 980 }
 981
 982 int qed_vf_pf_filter_ucast(struct qed_hwfn *p_hwfn,
 983                            struct qed_filter_ucast *p_ucast)
 984 {
 985         struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
 986         struct vfpf_ucast_filter_tlv *req;
 987         struct pfvf_def_resp_tlv *resp;
 988         int rc;
 989
 990         /* clear mailbox and prep first tlv */
 991         req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_UCAST_FILTER, sizeof(*req));
 992         req->opcode = (u8) p_ucast->opcode;
 993         req->type = (u8) p_ucast->type;
 994         memcpy(req->mac, p_ucast->mac, ETH_ALEN);
 995         req->vlan = p_ucast->vlan;
 996
 997         /* add list termination tlv */
 998         qed_add_tlv(p_hwfn, &p_iov->offset,
 999                     CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
1000
1001         resp = &p_iov->pf2vf_reply->default_resp;
1002         rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
1003         if (rc)
1004                 goto exit;
1005
1006         if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
1007                 rc = -EAGAIN;
1008                 goto exit;
1009         }
1010
1011 exit:
1012         qed_vf_pf_req_end(p_hwfn, rc);
1013
1014         return rc;
1015 }
1016
1017 int qed_vf_pf_int_cleanup(struct qed_hwfn *p_hwfn)
1018 {
1019         struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
1020         struct pfvf_def_resp_tlv *resp = &p_iov->pf2vf_reply->default_resp;
1021         int rc;
1022
1023         /* clear mailbox and prep first tlv */
1024         qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_INT_CLEANUP,
1025                        sizeof(struct vfpf_first_tlv));
1026
1027         /* add list termination tlv */
1028         qed_add_tlv(p_hwfn, &p_iov->offset,
1029                     CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
1030
1031         rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
1032         if (rc)
1033                 goto exit;
1034
1035         if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
1036                 rc = -EINVAL;
1037                 goto exit;
1038         }
1039
1040 exit:
1041         qed_vf_pf_req_end(p_hwfn, rc);
1042
1043         return rc;
1044 }
1045
1046 u16 qed_vf_get_igu_sb_id(struct qed_hwfn *p_hwfn, u16 sb_id)
1047 {
1048         struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
1049
1050         if (!p_iov) {
1051                 DP_NOTICE(p_hwfn, "vf_sriov_info isn't initialized\n");
1052                 return 0;
1053         }
1054
1055         return p_iov->acquire_resp.resc.hw_sbs[sb_id].hw_sb_id;
1056 }
1057
1058 int qed_vf_read_bulletin(struct qed_hwfn *p_hwfn, u8 *p_change)
1059 {
1060         struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
1061         struct qed_bulletin_content shadow;
1062         u32 crc, crc_size;
1063
1064         crc_size = sizeof(p_iov->bulletin.p_virt->crc);
1065         *p_change = 0;
1066
1067         /* Need to guarantee PF is not in the middle of writing it */
1068         memcpy(&shadow, p_iov->bulletin.p_virt, p_iov->bulletin.size);
1069
1070         /* If version did not update, no need to do anything */
1071         if (shadow.version == p_iov->bulletin_shadow.version)
1072                 return 0;
1073
1074         /* Verify the bulletin we see is valid */
1075         crc = crc32(0, (u8 *)&shadow + crc_size,
1076                     p_iov->bulletin.size - crc_size);
1077         if (crc != shadow.crc)
1078                 return -EAGAIN;
1079
1080         /* Set the shadow bulletin and process it */
1081         memcpy(&p_iov->bulletin_shadow, &shadow, p_iov->bulletin.size);
1082
1083         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1084                    "Read a bulletin update %08x\n", shadow.version);
1085
1086         *p_change = 1;
1087
1088         return 0;
1089 }
1090
1091 void __qed_vf_get_link_params(struct qed_hwfn *p_hwfn,
1092                               struct qed_mcp_link_params *p_params,
1093                               struct qed_bulletin_content *p_bulletin)
1094 {
1095         memset(p_params, 0, sizeof(*p_params));
1096
1097         p_params->speed.autoneg = p_bulletin->req_autoneg;
1098         p_params->speed.advertised_speeds = p_bulletin->req_adv_speed;
1099         p_params->speed.forced_speed = p_bulletin->req_forced_speed;
1100         p_params->pause.autoneg = p_bulletin->req_autoneg_pause;
1101         p_params->pause.forced_rx = p_bulletin->req_forced_rx;
1102         p_params->pause.forced_tx = p_bulletin->req_forced_tx;
1103         p_params->loopback_mode = p_bulletin->req_loopback;
1104 }
1105
1106 void qed_vf_get_link_params(struct qed_hwfn *p_hwfn,
1107                             struct qed_mcp_link_params *params)
1108 {
1109         __qed_vf_get_link_params(p_hwfn, params,
1110                                  &(p_hwfn->vf_iov_info->bulletin_shadow));
1111 }
1112
1113 void __qed_vf_get_link_state(struct qed_hwfn *p_hwfn,
1114                              struct qed_mcp_link_state *p_link,
1115                              struct qed_bulletin_content *p_bulletin)
1116 {
1117         memset(p_link, 0, sizeof(*p_link));
1118
1119         p_link->link_up = p_bulletin->link_up;
1120         p_link->speed = p_bulletin->speed;
1121         p_link->full_duplex = p_bulletin->full_duplex;
1122         p_link->an = p_bulletin->autoneg;
1123         p_link->an_complete = p_bulletin->autoneg_complete;
1124         p_link->parallel_detection = p_bulletin->parallel_detection;
1125         p_link->pfc_enabled = p_bulletin->pfc_enabled;
1126         p_link->partner_adv_speed = p_bulletin->partner_adv_speed;
1127         p_link->partner_tx_flow_ctrl_en = p_bulletin->partner_tx_flow_ctrl_en;
1128         p_link->partner_rx_flow_ctrl_en = p_bulletin->partner_rx_flow_ctrl_en;
1129         p_link->partner_adv_pause = p_bulletin->partner_adv_pause;
1130         p_link->sfp_tx_fault = p_bulletin->sfp_tx_fault;
1131 }
1132
1133 void qed_vf_get_link_state(struct qed_hwfn *p_hwfn,
1134                            struct qed_mcp_link_state *link)
1135 {
1136         __qed_vf_get_link_state(p_hwfn, link,
1137                                 &(p_hwfn->vf_iov_info->bulletin_shadow));
1138 }
1139
1140 void __qed_vf_get_link_caps(struct qed_hwfn *p_hwfn,
1141                             struct qed_mcp_link_capabilities *p_link_caps,
1142                             struct qed_bulletin_content *p_bulletin)
1143 {
1144         memset(p_link_caps, 0, sizeof(*p_link_caps));
1145         p_link_caps->speed_capabilities = p_bulletin->capability_speed;
1146 }
1147
1148 void qed_vf_get_link_caps(struct qed_hwfn *p_hwfn,
1149                           struct qed_mcp_link_capabilities *p_link_caps)
1150 {
1151         __qed_vf_get_link_caps(p_hwfn, p_link_caps,
1152                                &(p_hwfn->vf_iov_info->bulletin_shadow));
1153 }
1154
1155 void qed_vf_get_num_rxqs(struct qed_hwfn *p_hwfn, u8 *num_rxqs)
1156 {
1157         *num_rxqs = p_hwfn->vf_iov_info->acquire_resp.resc.num_rxqs;
1158 }
1159
1160 void qed_vf_get_port_mac(struct qed_hwfn *p_hwfn, u8 *port_mac)
1161 {
1162         memcpy(port_mac,
1163                p_hwfn->vf_iov_info->acquire_resp.pfdev_info.port_mac, ETH_ALEN);
1164 }
1165
1166 void qed_vf_get_num_vlan_filters(struct qed_hwfn *p_hwfn, u8 *num_vlan_filters)
1167 {
1168         struct qed_vf_iov *p_vf;
1169
1170         p_vf = p_hwfn->vf_iov_info;
1171         *num_vlan_filters = p_vf->acquire_resp.resc.num_vlan_filters;
1172 }
1173
1174 bool qed_vf_check_mac(struct qed_hwfn *p_hwfn, u8 *mac)
1175 {
1176         struct qed_bulletin_content *bulletin;
1177
1178         bulletin = &p_hwfn->vf_iov_info->bulletin_shadow;
1179         if (!(bulletin->valid_bitmap & (1 << MAC_ADDR_FORCED)))
1180                 return true;
1181
1182         /* Forbid VF from changing a MAC enforced by PF */
1183         if (ether_addr_equal(bulletin->mac, mac))
1184                 return false;
1185
1186         return false;
1187 }
1188
1189 bool qed_vf_bulletin_get_forced_mac(struct qed_hwfn *hwfn,
1190                                     u8 *dst_mac, u8 *p_is_forced)
1191 {
1192         struct qed_bulletin_content *bulletin;
1193
1194         bulletin = &hwfn->vf_iov_info->bulletin_shadow;
1195
1196         if (bulletin->valid_bitmap & (1 << MAC_ADDR_FORCED)) {
1197                 if (p_is_forced)
1198                         *p_is_forced = 1;
1199         } else if (bulletin->valid_bitmap & (1 << VFPF_BULLETIN_MAC_ADDR)) {
1200                 if (p_is_forced)
1201                         *p_is_forced = 0;
1202         } else {
1203                 return false;
1204         }
1205
1206         ether_addr_copy(dst_mac, bulletin->mac);
1207
1208         return true;
1209 }
1210
1211 void qed_vf_get_fw_version(struct qed_hwfn *p_hwfn,
1212                            u16 *fw_major, u16 *fw_minor,
1213                            u16 *fw_rev, u16 *fw_eng)
1214 {
1215         struct pf_vf_pfdev_info *info;
1216
1217         info = &p_hwfn->vf_iov_info->acquire_resp.pfdev_info;
1218
1219         *fw_major = info->fw_major;
1220         *fw_minor = info->fw_minor;
1221         *fw_rev = info->fw_rev;
1222         *fw_eng = info->fw_eng;
1223 }
1224
1225 static void qed_handle_bulletin_change(struct qed_hwfn *hwfn)
1226 {
1227         struct qed_eth_cb_ops *ops = hwfn->cdev->protocol_ops.eth;
1228         u8 mac[ETH_ALEN], is_mac_exist, is_mac_forced;
1229         void *cookie = hwfn->cdev->ops_cookie;
1230
1231         is_mac_exist = qed_vf_bulletin_get_forced_mac(hwfn, mac,
1232                                                       &is_mac_forced);
1233         if (is_mac_exist && is_mac_forced && cookie)
1234                 ops->force_mac(cookie, mac);
1235
1236         /* Always update link configuration according to bulletin */
1237         qed_link_update(hwfn);
1238 }
1239
1240 void qed_iov_vf_task(struct work_struct *work)
1241 {
1242         struct qed_hwfn *hwfn = container_of(work, struct qed_hwfn,
1243                                              iov_task.work);
1244         u8 change = 0;
1245
1246         if (test_and_clear_bit(QED_IOV_WQ_STOP_WQ_FLAG, &hwfn->iov_task_flags))
1247                 return;
1248
1249         /* Handle bulletin board changes */
1250         qed_vf_read_bulletin(hwfn, &change);
1251         if (change)
1252                 qed_handle_bulletin_change(hwfn);
1253
1254         /* As VF is polling bulletin board, need to constantly re-schedule */
1255         queue_delayed_work(hwfn->iov_wq, &hwfn->iov_task, HZ);
1256 }