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

   1 /* QLogic qed NIC Driver
   2  * Copyright (c) 2015-2017  QLogic Corporation
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and /or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32
  33 #include <linux/etherdevice.h>
  34 #include <linux/crc32.h>
  35 #include <linux/vmalloc.h>
  36 #include <linux/qed/qed_iov_if.h>
  37 #include "qed_cxt.h"
  38 #include "qed_hsi.h"
  39 #include "qed_hw.h"
  40 #include "qed_init_ops.h"
  41 #include "qed_int.h"
  42 #include "qed_mcp.h"
  43 #include "qed_reg_addr.h"
  44 #include "qed_sp.h"
  45 #include "qed_sriov.h"
  46 #include "qed_vf.h"
  47 static int qed_sriov_eqe_event(struct qed_hwfn *p_hwfn,
  48                                u8 opcode,
  49                                __le16 echo,
  50                                union event_ring_data *data, u8 fw_return_code);
  51 static int qed_iov_bulletin_set_mac(struct qed_hwfn *p_hwfn, u8 *mac, int vfid);
  52
  53 static u8 qed_vf_calculate_legacy(struct qed_vf_info *p_vf)
  54 {
  55         u8 legacy = 0;
  56
  57         if (p_vf->acquire.vfdev_info.eth_fp_hsi_minor ==
  58             ETH_HSI_VER_NO_PKT_LEN_TUNN)
  59                 legacy |= QED_QCID_LEGACY_VF_RX_PROD;
  60
  61         if (!(p_vf->acquire.vfdev_info.capabilities &
  62               VFPF_ACQUIRE_CAP_QUEUE_QIDS))
  63                 legacy |= QED_QCID_LEGACY_VF_CID;
  64
  65         return legacy;
  66 }
  67
  68 /* IOV ramrods */
  69 static int qed_sp_vf_start(struct qed_hwfn *p_hwfn, struct qed_vf_info *p_vf)
  70 {
  71         struct vf_start_ramrod_data *p_ramrod = NULL;
  72         struct qed_spq_entry *p_ent = NULL;
  73         struct qed_sp_init_data init_data;
  74         int rc = -EINVAL;
  75         u8 fp_minor;
  76
  77         /* Get SPQ entry */
  78         memset(&init_data, 0, sizeof(init_data));
  79         init_data.cid = qed_spq_get_cid(p_hwfn);
  80         init_data.opaque_fid = p_vf->opaque_fid;
  81         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
  82
  83         rc = qed_sp_init_request(p_hwfn, &p_ent,
  84                                  COMMON_RAMROD_VF_START,
  85                                  PROTOCOLID_COMMON, &init_data);
  86         if (rc)
  87                 return rc;
  88
  89         p_ramrod = &p_ent->ramrod.vf_start;
  90
  91         p_ramrod->vf_id = GET_FIELD(p_vf->concrete_fid, PXP_CONCRETE_FID_VFID);
  92         p_ramrod->opaque_fid = cpu_to_le16(p_vf->opaque_fid);
  93
  94         switch (p_hwfn->hw_info.personality) {
  95         case QED_PCI_ETH:
  96                 p_ramrod->personality = PERSONALITY_ETH;
  97                 break;
  98         case QED_PCI_ETH_ROCE:
  99                 p_ramrod->personality = PERSONALITY_RDMA_AND_ETH;
 100                 break;
 101         default:
 102                 DP_NOTICE(p_hwfn, "Unknown VF personality %d\n",
 103                           p_hwfn->hw_info.personality);
 104                 qed_sp_destroy_request(p_hwfn, p_ent);
 105                 return -EINVAL;
 106         }
 107
 108         fp_minor = p_vf->acquire.vfdev_info.eth_fp_hsi_minor;
 109         if (fp_minor > ETH_HSI_VER_MINOR &&
 110             fp_minor != ETH_HSI_VER_NO_PKT_LEN_TUNN) {
 111                 DP_VERBOSE(p_hwfn,
 112                            QED_MSG_IOV,
 113                            "VF [%d] - Requested fp hsi %02x.%02x which is slightly newer than PF's %02x.%02x; Configuring PFs version\n",
 114                            p_vf->abs_vf_id,
 115                            ETH_HSI_VER_MAJOR,
 116                            fp_minor, ETH_HSI_VER_MAJOR, ETH_HSI_VER_MINOR);
 117                 fp_minor = ETH_HSI_VER_MINOR;
 118         }
 119
 120         p_ramrod->hsi_fp_ver.major_ver_arr[ETH_VER_KEY] = ETH_HSI_VER_MAJOR;
 121         p_ramrod->hsi_fp_ver.minor_ver_arr[ETH_VER_KEY] = fp_minor;
 122
 123         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
 124                    "VF[%d] - Starting using HSI %02x.%02x\n",
 125                    p_vf->abs_vf_id, ETH_HSI_VER_MAJOR, fp_minor);
 126
 127         return qed_spq_post(p_hwfn, p_ent, NULL);
 128 }
 129
 130 static int qed_sp_vf_stop(struct qed_hwfn *p_hwfn,
 131                           u32 concrete_vfid, u16 opaque_vfid)
 132 {
 133         struct vf_stop_ramrod_data *p_ramrod = NULL;
 134         struct qed_spq_entry *p_ent = NULL;
 135         struct qed_sp_init_data init_data;
 136         int rc = -EINVAL;
 137
 138         /* Get SPQ entry */
 139         memset(&init_data, 0, sizeof(init_data));
 140         init_data.cid = qed_spq_get_cid(p_hwfn);
 141         init_data.opaque_fid = opaque_vfid;
 142         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
 143
 144         rc = qed_sp_init_request(p_hwfn, &p_ent,
 145                                  COMMON_RAMROD_VF_STOP,
 146                                  PROTOCOLID_COMMON, &init_data);
 147         if (rc)
 148                 return rc;
 149
 150         p_ramrod = &p_ent->ramrod.vf_stop;
 151
 152         p_ramrod->vf_id = GET_FIELD(concrete_vfid, PXP_CONCRETE_FID_VFID);
 153
 154         return qed_spq_post(p_hwfn, p_ent, NULL);
 155 }
 156
 157 bool qed_iov_is_valid_vfid(struct qed_hwfn *p_hwfn,
 158                            int rel_vf_id,
 159                            bool b_enabled_only, bool b_non_malicious)
 160 {
 161         if (!p_hwfn->pf_iov_info) {
 162                 DP_NOTICE(p_hwfn->cdev, "No iov info\n");
 163                 return false;
 164         }
 165
 166         if ((rel_vf_id >= p_hwfn->cdev->p_iov_info->total_vfs) ||
 167             (rel_vf_id < 0))
 168                 return false;
 169
 170         if ((!p_hwfn->pf_iov_info->vfs_array[rel_vf_id].b_init) &&
 171             b_enabled_only)
 172                 return false;
 173
 174         if ((p_hwfn->pf_iov_info->vfs_array[rel_vf_id].b_malicious) &&
 175             b_non_malicious)
 176                 return false;
 177
 178         return true;
 179 }
 180
 181 static struct qed_vf_info *qed_iov_get_vf_info(struct qed_hwfn *p_hwfn,
 182                                                u16 relative_vf_id,
 183                                                bool b_enabled_only)
 184 {
 185         struct qed_vf_info *vf = NULL;
 186
 187         if (!p_hwfn->pf_iov_info) {
 188                 DP_NOTICE(p_hwfn->cdev, "No iov info\n");
 189                 return NULL;
 190         }
 191
 192         if (qed_iov_is_valid_vfid(p_hwfn, relative_vf_id,
 193                                   b_enabled_only, false))
 194                 vf = &p_hwfn->pf_iov_info->vfs_array[relative_vf_id];
 195         else
 196                 DP_ERR(p_hwfn, "qed_iov_get_vf_info: VF[%d] is not enabled\n",
 197                        relative_vf_id);
 198
 199         return vf;
 200 }
 201
 202 static struct qed_queue_cid *
 203 qed_iov_get_vf_rx_queue_cid(struct qed_vf_queue *p_queue)
 204 {
 205         int i;
 206
 207         for (i = 0; i < MAX_QUEUES_PER_QZONE; i++) {
 208                 if (p_queue->cids[i].p_cid && !p_queue->cids[i].b_is_tx)
 209                         return p_queue->cids[i].p_cid;
 210         }
 211
 212         return NULL;
 213 }
 214
 215 enum qed_iov_validate_q_mode {
 216         QED_IOV_VALIDATE_Q_NA,
 217         QED_IOV_VALIDATE_Q_ENABLE,
 218         QED_IOV_VALIDATE_Q_DISABLE,
 219 };
 220
 221 static bool qed_iov_validate_queue_mode(struct qed_hwfn *p_hwfn,
 222                                         struct qed_vf_info *p_vf,
 223                                         u16 qid,
 224                                         enum qed_iov_validate_q_mode mode,
 225                                         bool b_is_tx)
 226 {
 227         int i;
 228
 229         if (mode == QED_IOV_VALIDATE_Q_NA)
 230                 return true;
 231
 232         for (i = 0; i < MAX_QUEUES_PER_QZONE; i++) {
 233                 struct qed_vf_queue_cid *p_qcid;
 234
 235                 p_qcid = &p_vf->vf_queues[qid].cids[i];
 236
 237                 if (!p_qcid->p_cid)
 238                         continue;
 239
 240                 if (p_qcid->b_is_tx != b_is_tx)
 241                         continue;
 242
 243                 return mode == QED_IOV_VALIDATE_Q_ENABLE;
 244         }
 245
 246         /* In case we haven't found any valid cid, then its disabled */
 247         return mode == QED_IOV_VALIDATE_Q_DISABLE;
 248 }
 249
 250 static bool qed_iov_validate_rxq(struct qed_hwfn *p_hwfn,
 251                                  struct qed_vf_info *p_vf,
 252                                  u16 rx_qid,
 253                                  enum qed_iov_validate_q_mode mode)
 254 {
 255         if (rx_qid >= p_vf->num_rxqs) {
 256                 DP_VERBOSE(p_hwfn,
 257                            QED_MSG_IOV,
 258                            "VF[0x%02x] - can't touch Rx queue[%04x]; Only 0x%04x are allocated\n",
 259                            p_vf->abs_vf_id, rx_qid, p_vf->num_rxqs);
 260                 return false;
 261         }
 262
 263         return qed_iov_validate_queue_mode(p_hwfn, p_vf, rx_qid, mode, false);
 264 }
 265
 266 static bool qed_iov_validate_txq(struct qed_hwfn *p_hwfn,
 267                                  struct qed_vf_info *p_vf,
 268                                  u16 tx_qid,
 269                                  enum qed_iov_validate_q_mode mode)
 270 {
 271         if (tx_qid >= p_vf->num_txqs) {
 272                 DP_VERBOSE(p_hwfn,
 273                            QED_MSG_IOV,
 274                            "VF[0x%02x] - can't touch Tx queue[%04x]; Only 0x%04x are allocated\n",
 275                            p_vf->abs_vf_id, tx_qid, p_vf->num_txqs);
 276                 return false;
 277         }
 278
 279         return qed_iov_validate_queue_mode(p_hwfn, p_vf, tx_qid, mode, true);
 280 }
 281
 282 static bool qed_iov_validate_sb(struct qed_hwfn *p_hwfn,
 283                                 struct qed_vf_info *p_vf, u16 sb_idx)
 284 {
 285         int i;
 286
 287         for (i = 0; i < p_vf->num_sbs; i++)
 288                 if (p_vf->igu_sbs[i] == sb_idx)
 289                         return true;
 290
 291         DP_VERBOSE(p_hwfn,
 292                    QED_MSG_IOV,
 293                    "VF[0%02x] - tried using sb_idx %04x which doesn't exist as one of its 0x%02x SBs\n",
 294                    p_vf->abs_vf_id, sb_idx, p_vf->num_sbs);
 295
 296         return false;
 297 }
 298
 299 static bool qed_iov_validate_active_rxq(struct qed_hwfn *p_hwfn,
 300                                         struct qed_vf_info *p_vf)
 301 {
 302         u8 i;
 303
 304         for (i = 0; i < p_vf->num_rxqs; i++)
 305                 if (qed_iov_validate_queue_mode(p_hwfn, p_vf, i,
 306                                                 QED_IOV_VALIDATE_Q_ENABLE,
 307                                                 false))
 308                         return true;
 309
 310         return false;
 311 }
 312
 313 static bool qed_iov_validate_active_txq(struct qed_hwfn *p_hwfn,
 314                                         struct qed_vf_info *p_vf)
 315 {
 316         u8 i;
 317
 318         for (i = 0; i < p_vf->num_txqs; i++)
 319                 if (qed_iov_validate_queue_mode(p_hwfn, p_vf, i,
 320                                                 QED_IOV_VALIDATE_Q_ENABLE,
 321                                                 true))
 322                         return true;
 323
 324         return false;
 325 }
 326
 327 static int qed_iov_post_vf_bulletin(struct qed_hwfn *p_hwfn,
 328                                     int vfid, struct qed_ptt *p_ptt)
 329 {
 330         struct qed_bulletin_content *p_bulletin;
 331         int crc_size = sizeof(p_bulletin->crc);
 332         struct qed_dmae_params params;
 333         struct qed_vf_info *p_vf;
 334
 335         p_vf = qed_iov_get_vf_info(p_hwfn, (u16) vfid, true);
 336         if (!p_vf)
 337                 return -EINVAL;
 338
 339         if (!p_vf->vf_bulletin)
 340                 return -EINVAL;
 341
 342         p_bulletin = p_vf->bulletin.p_virt;
 343
 344         /* Increment bulletin board version and compute crc */
 345         p_bulletin->version++;
 346         p_bulletin->crc = crc32(0, (u8 *)p_bulletin + crc_size,
 347                                 p_vf->bulletin.size - crc_size);
 348
 349         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
 350                    "Posting Bulletin 0x%08x to VF[%d] (CRC 0x%08x)\n",
 351                    p_bulletin->version, p_vf->relative_vf_id, p_bulletin->crc);
 352
 353         /* propagate bulletin board via dmae to vm memory */
 354         memset(&params, 0, sizeof(params));
 355         params.flags = QED_DMAE_FLAG_VF_DST;
 356         params.dst_vfid = p_vf->abs_vf_id;
 357         return qed_dmae_host2host(p_hwfn, p_ptt, p_vf->bulletin.phys,
 358                                   p_vf->vf_bulletin, p_vf->bulletin.size / 4,
 359                                   &params);
 360 }
 361
 362 static int qed_iov_pci_cfg_info(struct qed_dev *cdev)
 363 {
 364         struct qed_hw_sriov_info *iov = cdev->p_iov_info;
 365         int pos = iov->pos;
 366
 367         DP_VERBOSE(cdev, QED_MSG_IOV, "sriov ext pos %d\n", pos);
 368         pci_read_config_word(cdev->pdev, pos + PCI_SRIOV_CTRL, &iov->ctrl);
 369
 370         pci_read_config_word(cdev->pdev,
 371                              pos + PCI_SRIOV_TOTAL_VF, &iov->total_vfs);
 372         pci_read_config_word(cdev->pdev,
 373                              pos + PCI_SRIOV_INITIAL_VF, &iov->initial_vfs);
 374
 375         pci_read_config_word(cdev->pdev, pos + PCI_SRIOV_NUM_VF, &iov->num_vfs);
 376         if (iov->num_vfs) {
 377                 DP_VERBOSE(cdev,
 378                            QED_MSG_IOV,
 379                            "Number of VFs are already set to non-zero value. Ignoring PCI configuration value\n");
 380                 iov->num_vfs = 0;
 381         }
 382
 383         pci_read_config_word(cdev->pdev,
 384                              pos + PCI_SRIOV_VF_OFFSET, &iov->offset);
 385
 386         pci_read_config_word(cdev->pdev,
 387                              pos + PCI_SRIOV_VF_STRIDE, &iov->stride);
 388
 389         pci_read_config_word(cdev->pdev,
 390                              pos + PCI_SRIOV_VF_DID, &iov->vf_device_id);
 391
 392         pci_read_config_dword(cdev->pdev,
 393                               pos + PCI_SRIOV_SUP_PGSIZE, &iov->pgsz);
 394
 395         pci_read_config_dword(cdev->pdev, pos + PCI_SRIOV_CAP, &iov->cap);
 396
 397         pci_read_config_byte(cdev->pdev, pos + PCI_SRIOV_FUNC_LINK, &iov->link);
 398
 399         DP_VERBOSE(cdev,
 400                    QED_MSG_IOV,
 401                    "IOV info: nres %d, cap 0x%x, ctrl 0x%x, total %d, initial %d, num vfs %d, offset %d, stride %d, page size 0x%x\n",
 402                    iov->nres,
 403                    iov->cap,
 404                    iov->ctrl,
 405                    iov->total_vfs,
 406                    iov->initial_vfs,
 407                    iov->nr_virtfn, iov->offset, iov->stride, iov->pgsz);
 408
 409         /* Some sanity checks */
 410         if (iov->num_vfs > NUM_OF_VFS(cdev) ||
 411             iov->total_vfs > NUM_OF_VFS(cdev)) {
 412                 /* This can happen only due to a bug. In this case we set
 413                  * num_vfs to zero to avoid memory corruption in the code that
 414                  * assumes max number of vfs
 415                  */
 416                 DP_NOTICE(cdev,
 417                           "IOV: Unexpected number of vfs set: %d setting num_vf to zero\n",
 418                           iov->num_vfs);
 419
 420                 iov->num_vfs = 0;
 421                 iov->total_vfs = 0;
 422         }
 423
 424         return 0;
 425 }
 426
 427 static void qed_iov_setup_vfdb(struct qed_hwfn *p_hwfn)
 428 {
 429         struct qed_hw_sriov_info *p_iov = p_hwfn->cdev->p_iov_info;
 430         struct qed_pf_iov *p_iov_info = p_hwfn->pf_iov_info;
 431         struct qed_bulletin_content *p_bulletin_virt;
 432         dma_addr_t req_p, rply_p, bulletin_p;
 433         union pfvf_tlvs *p_reply_virt_addr;
 434         union vfpf_tlvs *p_req_virt_addr;
 435         u8 idx = 0;
 436
 437         memset(p_iov_info->vfs_array, 0, sizeof(p_iov_info->vfs_array));
 438
 439         p_req_virt_addr = p_iov_info->mbx_msg_virt_addr;
 440         req_p = p_iov_info->mbx_msg_phys_addr;
 441         p_reply_virt_addr = p_iov_info->mbx_reply_virt_addr;
 442         rply_p = p_iov_info->mbx_reply_phys_addr;
 443         p_bulletin_virt = p_iov_info->p_bulletins;
 444         bulletin_p = p_iov_info->bulletins_phys;
 445         if (!p_req_virt_addr || !p_reply_virt_addr || !p_bulletin_virt) {
 446                 DP_ERR(p_hwfn,
 447                        "qed_iov_setup_vfdb called without allocating mem first\n");
 448                 return;
 449         }
 450
 451         for (idx = 0; idx < p_iov->total_vfs; idx++) {
 452                 struct qed_vf_info *vf = &p_iov_info->vfs_array[idx];
 453                 u32 concrete;
 454
 455                 vf->vf_mbx.req_virt = p_req_virt_addr + idx;
 456                 vf->vf_mbx.req_phys = req_p + idx * sizeof(union vfpf_tlvs);
 457                 vf->vf_mbx.reply_virt = p_reply_virt_addr + idx;
 458                 vf->vf_mbx.reply_phys = rply_p + idx * sizeof(union pfvf_tlvs);
 459
 460                 vf->state = VF_STOPPED;
 461                 vf->b_init = false;
 462
 463                 vf->bulletin.phys = idx *
 464                                     sizeof(struct qed_bulletin_content) +
 465                                     bulletin_p;
 466                 vf->bulletin.p_virt = p_bulletin_virt + idx;
 467                 vf->bulletin.size = sizeof(struct qed_bulletin_content);
 468
 469                 vf->relative_vf_id = idx;
 470                 vf->abs_vf_id = idx + p_iov->first_vf_in_pf;
 471                 concrete = qed_vfid_to_concrete(p_hwfn, vf->abs_vf_id);
 472                 vf->concrete_fid = concrete;
 473                 vf->opaque_fid = (p_hwfn->hw_info.opaque_fid & 0xff) |
 474                                  (vf->abs_vf_id << 8);
 475                 vf->vport_id = idx + 1;
 476
 477                 vf->num_mac_filters = QED_ETH_VF_NUM_MAC_FILTERS;
 478                 vf->num_vlan_filters = QED_ETH_VF_NUM_VLAN_FILTERS;
 479         }
 480 }
 481
 482 static int qed_iov_allocate_vfdb(struct qed_hwfn *p_hwfn)
 483 {
 484         struct qed_pf_iov *p_iov_info = p_hwfn->pf_iov_info;
 485         void **p_v_addr;
 486         u16 num_vfs = 0;
 487
 488         num_vfs = p_hwfn->cdev->p_iov_info->total_vfs;
 489
 490         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
 491                    "qed_iov_allocate_vfdb for %d VFs\n", num_vfs);
 492
 493         /* Allocate PF Mailbox buffer (per-VF) */
 494         p_iov_info->mbx_msg_size = sizeof(union vfpf_tlvs) * num_vfs;
 495         p_v_addr = &p_iov_info->mbx_msg_virt_addr;
 496         *p_v_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 497                                        p_iov_info->mbx_msg_size,
 498                                        &p_iov_info->mbx_msg_phys_addr,
 499                                        GFP_KERNEL);
 500         if (!*p_v_addr)
 501                 return -ENOMEM;
 502
 503         /* Allocate PF Mailbox Reply buffer (per-VF) */
 504         p_iov_info->mbx_reply_size = sizeof(union pfvf_tlvs) * num_vfs;
 505         p_v_addr = &p_iov_info->mbx_reply_virt_addr;
 506         *p_v_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 507                                        p_iov_info->mbx_reply_size,
 508                                        &p_iov_info->mbx_reply_phys_addr,
 509                                        GFP_KERNEL);
 510         if (!*p_v_addr)
 511                 return -ENOMEM;
 512
 513         p_iov_info->bulletins_size = sizeof(struct qed_bulletin_content) *
 514                                      num_vfs;
 515         p_v_addr = &p_iov_info->p_bulletins;
 516         *p_v_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 517                                        p_iov_info->bulletins_size,
 518                                        &p_iov_info->bulletins_phys,
 519                                        GFP_KERNEL);
 520         if (!*p_v_addr)
 521                 return -ENOMEM;
 522
 523         DP_VERBOSE(p_hwfn,
 524                    QED_MSG_IOV,
 525                    "PF's Requests mailbox [%p virt 0x%llx phys],  Response mailbox [%p virt 0x%llx phys] Bulletins [%p virt 0x%llx phys]\n",
 526                    p_iov_info->mbx_msg_virt_addr,
 527                    (u64) p_iov_info->mbx_msg_phys_addr,
 528                    p_iov_info->mbx_reply_virt_addr,
 529                    (u64) p_iov_info->mbx_reply_phys_addr,
 530                    p_iov_info->p_bulletins, (u64) p_iov_info->bulletins_phys);
 531
 532         return 0;
 533 }
 534
 535 static void qed_iov_free_vfdb(struct qed_hwfn *p_hwfn)
 536 {
 537         struct qed_pf_iov *p_iov_info = p_hwfn->pf_iov_info;
 538
 539         if (p_hwfn->pf_iov_info->mbx_msg_virt_addr)
 540                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 541                                   p_iov_info->mbx_msg_size,
 542                                   p_iov_info->mbx_msg_virt_addr,
 543                                   p_iov_info->mbx_msg_phys_addr);
 544
 545         if (p_hwfn->pf_iov_info->mbx_reply_virt_addr)
 546                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 547                                   p_iov_info->mbx_reply_size,
 548                                   p_iov_info->mbx_reply_virt_addr,
 549                                   p_iov_info->mbx_reply_phys_addr);
 550
 551         if (p_iov_info->p_bulletins)
 552                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 553                                   p_iov_info->bulletins_size,
 554                                   p_iov_info->p_bulletins,
 555                                   p_iov_info->bulletins_phys);
 556 }
 557
 558 int qed_iov_alloc(struct qed_hwfn *p_hwfn)
 559 {
 560         struct qed_pf_iov *p_sriov;
 561
 562         if (!IS_PF_SRIOV(p_hwfn)) {
 563                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
 564                            "No SR-IOV - no need for IOV db\n");
 565                 return 0;
 566         }
 567
 568         p_sriov = kzalloc(sizeof(*p_sriov), GFP_KERNEL);
 569         if (!p_sriov)
 570                 return -ENOMEM;
 571
 572         p_hwfn->pf_iov_info = p_sriov;
 573
 574         qed_spq_register_async_cb(p_hwfn, PROTOCOLID_COMMON,
 575                                   qed_sriov_eqe_event);
 576
 577         return qed_iov_allocate_vfdb(p_hwfn);
 578 }
 579
 580 void qed_iov_setup(struct qed_hwfn *p_hwfn)
 581 {
 582         if (!IS_PF_SRIOV(p_hwfn) || !IS_PF_SRIOV_ALLOC(p_hwfn))
 583                 return;
 584
 585         qed_iov_setup_vfdb(p_hwfn);
 586 }
 587
 588 void qed_iov_free(struct qed_hwfn *p_hwfn)
 589 {
 590         qed_spq_unregister_async_cb(p_hwfn, PROTOCOLID_COMMON);
 591
 592         if (IS_PF_SRIOV_ALLOC(p_hwfn)) {
 593                 qed_iov_free_vfdb(p_hwfn);
 594                 kfree(p_hwfn->pf_iov_info);
 595         }
 596 }
 597
 598 void qed_iov_free_hw_info(struct qed_dev *cdev)
 599 {
 600         kfree(cdev->p_iov_info);
 601         cdev->p_iov_info = NULL;
 602 }
 603
 604 int qed_iov_hw_info(struct qed_hwfn *p_hwfn)
 605 {
 606         struct qed_dev *cdev = p_hwfn->cdev;
 607         int pos;
 608         int rc;
 609
 610         if (IS_VF(p_hwfn->cdev))
 611                 return 0;
 612
 613         /* Learn the PCI configuration */
 614         pos = pci_find_ext_capability(p_hwfn->cdev->pdev,
 615                                       PCI_EXT_CAP_ID_SRIOV);
 616         if (!pos) {
 617                 DP_VERBOSE(p_hwfn, QED_MSG_IOV, "No PCIe IOV support\n");
 618                 return 0;
 619         }
 620
 621         /* Allocate a new struct for IOV information */
 622         cdev->p_iov_info = kzalloc(sizeof(*cdev->p_iov_info), GFP_KERNEL);
 623         if (!cdev->p_iov_info)
 624                 return -ENOMEM;
 625
 626         cdev->p_iov_info->pos = pos;
 627
 628         rc = qed_iov_pci_cfg_info(cdev);
 629         if (rc)
 630                 return rc;
 631
 632         /* We want PF IOV to be synonemous with the existance of p_iov_info;
 633          * In case the capability is published but there are no VFs, simply
 634          * de-allocate the struct.
 635          */
 636         if (!cdev->p_iov_info->total_vfs) {
 637                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
 638                            "IOV capabilities, but no VFs are published\n");
 639                 kfree(cdev->p_iov_info);
 640                 cdev->p_iov_info = NULL;
 641                 return 0;
 642         }
 643
 644         /* First VF index based on offset is tricky:
 645          *  - If ARI is supported [likely], offset - (16 - pf_id) would
 646          *    provide the number for eng0. 2nd engine Vfs would begin
 647          *    after the first engine's VFs.
 648          *  - If !ARI, VFs would start on next device.
 649          *    so offset - (256 - pf_id) would provide the number.
 650          * Utilize the fact that (256 - pf_id) is achieved only by later
 651          * to differentiate between the two.
 652          */
 653
 654         if (p_hwfn->cdev->p_iov_info->offset < (256 - p_hwfn->abs_pf_id)) {
 655                 u32 first = p_hwfn->cdev->p_iov_info->offset +
 656                             p_hwfn->abs_pf_id - 16;
 657
 658                 cdev->p_iov_info->first_vf_in_pf = first;
 659
 660                 if (QED_PATH_ID(p_hwfn))
 661                         cdev->p_iov_info->first_vf_in_pf -= MAX_NUM_VFS_BB;
 662         } else {
 663                 u32 first = p_hwfn->cdev->p_iov_info->offset +
 664                             p_hwfn->abs_pf_id - 256;
 665
 666                 cdev->p_iov_info->first_vf_in_pf = first;
 667         }
 668
 669         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
 670                    "First VF in hwfn 0x%08x\n",
 671                    cdev->p_iov_info->first_vf_in_pf);
 672
 673         return 0;
 674 }
 675
 676 static bool _qed_iov_pf_sanity_check(struct qed_hwfn *p_hwfn,
 677                                      int vfid, bool b_fail_malicious)
 678 {
 679         /* Check PF supports sriov */
 680         if (IS_VF(p_hwfn->cdev) || !IS_QED_SRIOV(p_hwfn->cdev) ||
 681             !IS_PF_SRIOV_ALLOC(p_hwfn))
 682                 return false;
 683
 684         /* Check VF validity */
 685         if (!qed_iov_is_valid_vfid(p_hwfn, vfid, true, b_fail_malicious))
 686                 return false;
 687
 688         return true;
 689 }
 690
 691 static bool qed_iov_pf_sanity_check(struct qed_hwfn *p_hwfn, int vfid)
 692 {
 693         return _qed_iov_pf_sanity_check(p_hwfn, vfid, true);
 694 }
 695
 696 static void qed_iov_set_vf_to_disable(struct qed_dev *cdev,
 697                                       u16 rel_vf_id, u8 to_disable)
 698 {
 699         struct qed_vf_info *vf;
 700         int i;
 701
 702         for_each_hwfn(cdev, i) {
 703                 struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
 704
 705                 vf = qed_iov_get_vf_info(p_hwfn, rel_vf_id, false);
 706                 if (!vf)
 707                         continue;
 708
 709                 vf->to_disable = to_disable;
 710         }
 711 }
 712
 713 static void qed_iov_set_vfs_to_disable(struct qed_dev *cdev, u8 to_disable)
 714 {
 715         u16 i;
 716
 717         if (!IS_QED_SRIOV(cdev))
 718                 return;
 719
 720         for (i = 0; i < cdev->p_iov_info->total_vfs; i++)
 721                 qed_iov_set_vf_to_disable(cdev, i, to_disable);
 722 }
 723
 724 static void qed_iov_vf_pglue_clear_err(struct qed_hwfn *p_hwfn,
 725                                        struct qed_ptt *p_ptt, u8 abs_vfid)
 726 {
 727         qed_wr(p_hwfn, p_ptt,
 728                PGLUE_B_REG_WAS_ERROR_VF_31_0_CLR + (abs_vfid >> 5) * 4,
 729                1 << (abs_vfid & 0x1f));
 730 }
 731
 732 static void qed_iov_vf_igu_reset(struct qed_hwfn *p_hwfn,
 733                                  struct qed_ptt *p_ptt, struct qed_vf_info *vf)
 734 {
 735         int i;
 736
 737         /* Set VF masks and configuration - pretend */
 738         qed_fid_pretend(p_hwfn, p_ptt, (u16) vf->concrete_fid);
 739
 740         qed_wr(p_hwfn, p_ptt, IGU_REG_STATISTIC_NUM_VF_MSG_SENT, 0);
 741
 742         /* unpretend */
 743         qed_fid_pretend(p_hwfn, p_ptt, (u16) p_hwfn->hw_info.concrete_fid);
 744
 745         /* iterate over all queues, clear sb consumer */
 746         for (i = 0; i < vf->num_sbs; i++)
 747                 qed_int_igu_init_pure_rt_single(p_hwfn, p_ptt,
 748                                                 vf->igu_sbs[i],
 749                                                 vf->opaque_fid, true);
 750 }
 751
 752 static void qed_iov_vf_igu_set_int(struct qed_hwfn *p_hwfn,
 753                                    struct qed_ptt *p_ptt,
 754                                    struct qed_vf_info *vf, bool enable)
 755 {
 756         u32 igu_vf_conf;
 757
 758         qed_fid_pretend(p_hwfn, p_ptt, (u16) vf->concrete_fid);
 759
 760         igu_vf_conf = qed_rd(p_hwfn, p_ptt, IGU_REG_VF_CONFIGURATION);
 761
 762         if (enable)
 763                 igu_vf_conf |= IGU_VF_CONF_MSI_MSIX_EN;
 764         else
 765                 igu_vf_conf &= ~IGU_VF_CONF_MSI_MSIX_EN;
 766
 767         qed_wr(p_hwfn, p_ptt, IGU_REG_VF_CONFIGURATION, igu_vf_conf);
 768
 769         /* unpretend */
 770         qed_fid_pretend(p_hwfn, p_ptt, (u16) p_hwfn->hw_info.concrete_fid);
 771 }
 772
 773 static int
 774 qed_iov_enable_vf_access_msix(struct qed_hwfn *p_hwfn,
 775                               struct qed_ptt *p_ptt, u8 abs_vf_id, u8 num_sbs)
 776 {
 777         u8 current_max = 0;
 778         int i;
 779
 780         /* For AH onward, configuration is per-PF. Find maximum of all
 781          * the currently enabled child VFs, and set the number to be that.
 782          */
 783         if (!QED_IS_BB(p_hwfn->cdev)) {
 784                 qed_for_each_vf(p_hwfn, i) {
 785                         struct qed_vf_info *p_vf;
 786
 787                         p_vf = qed_iov_get_vf_info(p_hwfn, (u16)i, true);
 788                         if (!p_vf)
 789                                 continue;
 790
 791                         current_max = max_t(u8, current_max, p_vf->num_sbs);
 792                 }
 793         }
 794
 795         if (num_sbs > current_max)
 796                 return qed_mcp_config_vf_msix(p_hwfn, p_ptt,
 797                                               abs_vf_id, num_sbs);
 798
 799         return 0;
 800 }
 801
 802 static int qed_iov_enable_vf_access(struct qed_hwfn *p_hwfn,
 803                                     struct qed_ptt *p_ptt,
 804                                     struct qed_vf_info *vf)
 805 {
 806         u32 igu_vf_conf = IGU_VF_CONF_FUNC_EN;
 807         int rc;
 808
 809         /* It's possible VF was previously considered malicious -
 810          * clear the indication even if we're only going to disable VF.
 811          */
 812         vf->b_malicious = false;
 813
 814         if (vf->to_disable)
 815                 return 0;
 816
 817         DP_VERBOSE(p_hwfn,
 818                    QED_MSG_IOV,
 819                    "Enable internal access for vf %x [abs %x]\n",
 820                    vf->abs_vf_id, QED_VF_ABS_ID(p_hwfn, vf));
 821
 822         qed_iov_vf_pglue_clear_err(p_hwfn, p_ptt, QED_VF_ABS_ID(p_hwfn, vf));
 823
 824         qed_iov_vf_igu_reset(p_hwfn, p_ptt, vf);
 825
 826         rc = qed_iov_enable_vf_access_msix(p_hwfn, p_ptt,
 827                                            vf->abs_vf_id, vf->num_sbs);
 828         if (rc)
 829                 return rc;
 830
 831         qed_fid_pretend(p_hwfn, p_ptt, (u16) vf->concrete_fid);
 832
 833         SET_FIELD(igu_vf_conf, IGU_VF_CONF_PARENT, p_hwfn->rel_pf_id);
 834         STORE_RT_REG(p_hwfn, IGU_REG_VF_CONFIGURATION_RT_OFFSET, igu_vf_conf);
 835
 836         qed_init_run(p_hwfn, p_ptt, PHASE_VF, vf->abs_vf_id,
 837                      p_hwfn->hw_info.hw_mode);
 838
 839         /* unpretend */
 840         qed_fid_pretend(p_hwfn, p_ptt, (u16) p_hwfn->hw_info.concrete_fid);
 841
 842         vf->state = VF_FREE;
 843
 844         return rc;
 845 }
 846
 847 /**
 848  * @brief qed_iov_config_perm_table - configure the permission
 849  *      zone table.
 850  *      In E4, queue zone permission table size is 320x9. There
 851  *      are 320 VF queues for single engine device (256 for dual
 852  *      engine device), and each entry has the following format:
 853  *      {Valid, VF[7:0]}
 854  * @param p_hwfn
 855  * @param p_ptt
 856  * @param vf
 857  * @param enable
 858  */
 859 static void qed_iov_config_perm_table(struct qed_hwfn *p_hwfn,
 860                                       struct qed_ptt *p_ptt,
 861                                       struct qed_vf_info *vf, u8 enable)
 862 {
 863         u32 reg_addr, val;
 864         u16 qzone_id = 0;
 865         int qid;
 866
 867         for (qid = 0; qid < vf->num_rxqs; qid++) {
 868                 qed_fw_l2_queue(p_hwfn, vf->vf_queues[qid].fw_rx_qid,
 869                                 &qzone_id);
 870
 871                 reg_addr = PSWHST_REG_ZONE_PERMISSION_TABLE + qzone_id * 4;
 872                 val = enable ? (vf->abs_vf_id | BIT(8)) : 0;
 873                 qed_wr(p_hwfn, p_ptt, reg_addr, val);
 874         }
 875 }
 876
 877 static void qed_iov_enable_vf_traffic(struct qed_hwfn *p_hwfn,
 878                                       struct qed_ptt *p_ptt,
 879                                       struct qed_vf_info *vf)
 880 {
 881         /* Reset vf in IGU - interrupts are still disabled */
 882         qed_iov_vf_igu_reset(p_hwfn, p_ptt, vf);
 883
 884         qed_iov_vf_igu_set_int(p_hwfn, p_ptt, vf, 1);
 885
 886         /* Permission Table */
 887         qed_iov_config_perm_table(p_hwfn, p_ptt, vf, true);
 888 }
 889
 890 static u8 qed_iov_alloc_vf_igu_sbs(struct qed_hwfn *p_hwfn,
 891                                    struct qed_ptt *p_ptt,
 892                                    struct qed_vf_info *vf, u16 num_rx_queues)
 893 {
 894         struct qed_igu_block *p_block;
 895         struct cau_sb_entry sb_entry;
 896         int qid = 0;
 897         u32 val = 0;
 898
 899         if (num_rx_queues > p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov)
 900                 num_rx_queues = p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov;
 901         p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov -= num_rx_queues;
 902
 903         SET_FIELD(val, IGU_MAPPING_LINE_FUNCTION_NUMBER, vf->abs_vf_id);
 904         SET_FIELD(val, IGU_MAPPING_LINE_VALID, 1);
 905         SET_FIELD(val, IGU_MAPPING_LINE_PF_VALID, 0);
 906
 907         for (qid = 0; qid < num_rx_queues; qid++) {
 908                 p_block = qed_get_igu_free_sb(p_hwfn, false);
 909                 vf->igu_sbs[qid] = p_block->igu_sb_id;
 910                 p_block->status &= ~QED_IGU_STATUS_FREE;
 911                 SET_FIELD(val, IGU_MAPPING_LINE_VECTOR_NUMBER, qid);
 912
 913                 qed_wr(p_hwfn, p_ptt,
 914                        IGU_REG_MAPPING_MEMORY +
 915                        sizeof(u32) * p_block->igu_sb_id, val);
 916
 917                 /* Configure igu sb in CAU which were marked valid */
 918                 qed_init_cau_sb_entry(p_hwfn, &sb_entry,
 919                                       p_hwfn->rel_pf_id, vf->abs_vf_id, 1);
 920                 qed_dmae_host2grc(p_hwfn, p_ptt,
 921                                   (u64)(uintptr_t)&sb_entry,
 922                                   CAU_REG_SB_VAR_MEMORY +
 923                                   p_block->igu_sb_id * sizeof(u64), 2, 0);
 924         }
 925
 926         vf->num_sbs = (u8) num_rx_queues;
 927
 928         return vf->num_sbs;
 929 }
 930
 931 static void qed_iov_free_vf_igu_sbs(struct qed_hwfn *p_hwfn,
 932                                     struct qed_ptt *p_ptt,
 933                                     struct qed_vf_info *vf)
 934 {
 935         struct qed_igu_info *p_info = p_hwfn->hw_info.p_igu_info;
 936         int idx, igu_id;
 937         u32 addr, val;
 938
 939         /* Invalidate igu CAM lines and mark them as free */
 940         for (idx = 0; idx < vf->num_sbs; idx++) {
 941                 igu_id = vf->igu_sbs[idx];
 942                 addr = IGU_REG_MAPPING_MEMORY + sizeof(u32) * igu_id;
 943
 944                 val = qed_rd(p_hwfn, p_ptt, addr);
 945                 SET_FIELD(val, IGU_MAPPING_LINE_VALID, 0);
 946                 qed_wr(p_hwfn, p_ptt, addr, val);
 947
 948                 p_info->entry[igu_id].status |= QED_IGU_STATUS_FREE;
 949                 p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov++;
 950         }
 951
 952         vf->num_sbs = 0;
 953 }
 954
 955 static void qed_iov_set_link(struct qed_hwfn *p_hwfn,
 956                              u16 vfid,
 957                              struct qed_mcp_link_params *params,
 958                              struct qed_mcp_link_state *link,
 959                              struct qed_mcp_link_capabilities *p_caps)
 960 {
 961         struct qed_vf_info *p_vf = qed_iov_get_vf_info(p_hwfn,
 962                                                        vfid,
 963                                                        false);
 964         struct qed_bulletin_content *p_bulletin;
 965
 966         if (!p_vf)
 967                 return;
 968
 969         p_bulletin = p_vf->bulletin.p_virt;
 970         p_bulletin->req_autoneg = params->speed.autoneg;
 971         p_bulletin->req_adv_speed = params->speed.advertised_speeds;
 972         p_bulletin->req_forced_speed = params->speed.forced_speed;
 973         p_bulletin->req_autoneg_pause = params->pause.autoneg;
 974         p_bulletin->req_forced_rx = params->pause.forced_rx;
 975         p_bulletin->req_forced_tx = params->pause.forced_tx;
 976         p_bulletin->req_loopback = params->loopback_mode;
 977
 978         p_bulletin->link_up = link->link_up;
 979         p_bulletin->speed = link->speed;
 980         p_bulletin->full_duplex = link->full_duplex;
 981         p_bulletin->autoneg = link->an;
 982         p_bulletin->autoneg_complete = link->an_complete;
 983         p_bulletin->parallel_detection = link->parallel_detection;
 984         p_bulletin->pfc_enabled = link->pfc_enabled;
 985         p_bulletin->partner_adv_speed = link->partner_adv_speed;
 986         p_bulletin->partner_tx_flow_ctrl_en = link->partner_tx_flow_ctrl_en;
 987         p_bulletin->partner_rx_flow_ctrl_en = link->partner_rx_flow_ctrl_en;
 988         p_bulletin->partner_adv_pause = link->partner_adv_pause;
 989         p_bulletin->sfp_tx_fault = link->sfp_tx_fault;
 990
 991         p_bulletin->capability_speed = p_caps->speed_capabilities;
 992 }
 993
 994 static int qed_iov_init_hw_for_vf(struct qed_hwfn *p_hwfn,
 995                                   struct qed_ptt *p_ptt,
 996                                   struct qed_iov_vf_init_params *p_params)
 997 {
 998         struct qed_mcp_link_capabilities link_caps;
 999         struct qed_mcp_link_params link_params;
1000         struct qed_mcp_link_state link_state;
1001         u8 num_of_vf_avaiable_chains = 0;
1002         struct qed_vf_info *vf = NULL;
1003         u16 qid, num_irqs;
1004         int rc = 0;
1005         u32 cids;
1006         u8 i;
1007
1008         vf = qed_iov_get_vf_info(p_hwfn, p_params->rel_vf_id, false);
1009         if (!vf) {
1010                 DP_ERR(p_hwfn, "qed_iov_init_hw_for_vf : vf is NULL\n");
1011                 return -EINVAL;
1012         }
1013
1014         if (vf->b_init) {
1015                 DP_NOTICE(p_hwfn, "VF[%d] is already active.\n",
1016                           p_params->rel_vf_id);
1017                 return -EINVAL;
1018         }
1019
1020         /* Perform sanity checking on the requested queue_id */
1021         for (i = 0; i < p_params->num_queues; i++) {
1022                 u16 min_vf_qzone = FEAT_NUM(p_hwfn, QED_PF_L2_QUE);
1023                 u16 max_vf_qzone = min_vf_qzone +
1024                     FEAT_NUM(p_hwfn, QED_VF_L2_QUE) - 1;
1025
1026                 qid = p_params->req_rx_queue[i];
1027                 if (qid < min_vf_qzone || qid > max_vf_qzone) {
1028                         DP_NOTICE(p_hwfn,
1029                                   "Can't enable Rx qid [%04x] for VF[%d]: qids [0x%04x,...,0x%04x] available\n",
1030                                   qid,
1031                                   p_params->rel_vf_id,
1032                                   min_vf_qzone, max_vf_qzone);
1033                         return -EINVAL;
1034                 }
1035
1036                 qid = p_params->req_tx_queue[i];
1037                 if (qid > max_vf_qzone) {
1038                         DP_NOTICE(p_hwfn,
1039                                   "Can't enable Tx qid [%04x] for VF[%d]: max qid 0x%04x\n",
1040                                   qid, p_params->rel_vf_id, max_vf_qzone);
1041                         return -EINVAL;
1042                 }
1043
1044                 /* If client *really* wants, Tx qid can be shared with PF */
1045                 if (qid < min_vf_qzone)
1046                         DP_VERBOSE(p_hwfn,
1047                                    QED_MSG_IOV,
1048                                    "VF[%d] is using PF qid [0x%04x] for Txq[0x%02x]\n",
1049                                    p_params->rel_vf_id, qid, i);
1050         }
1051
1052         /* Limit number of queues according to number of CIDs */
1053         qed_cxt_get_proto_cid_count(p_hwfn, PROTOCOLID_ETH, &cids);
1054         DP_VERBOSE(p_hwfn,
1055                    QED_MSG_IOV,
1056                    "VF[%d] - requesting to initialize for 0x%04x queues [0x%04x CIDs available]\n",
1057                    vf->relative_vf_id, p_params->num_queues, (u16)cids);
1058         num_irqs = min_t(u16, p_params->num_queues, ((u16)cids));
1059
1060         num_of_vf_avaiable_chains = qed_iov_alloc_vf_igu_sbs(p_hwfn,
1061                                                              p_ptt,
1062                                                              vf, num_irqs);
1063         if (!num_of_vf_avaiable_chains) {
1064                 DP_ERR(p_hwfn, "no available igu sbs\n");
1065                 return -ENOMEM;
1066         }
1067
1068         /* Choose queue number and index ranges */
1069         vf->num_rxqs = num_of_vf_avaiable_chains;
1070         vf->num_txqs = num_of_vf_avaiable_chains;
1071
1072         for (i = 0; i < vf->num_rxqs; i++) {
1073                 struct qed_vf_queue *p_queue = &vf->vf_queues[i];
1074
1075                 p_queue->fw_rx_qid = p_params->req_rx_queue[i];
1076                 p_queue->fw_tx_qid = p_params->req_tx_queue[i];
1077
1078                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1079                            "VF[%d] - Q[%d] SB %04x, qid [Rx %04x Tx %04x]\n",
1080                            vf->relative_vf_id, i, vf->igu_sbs[i],
1081                            p_queue->fw_rx_qid, p_queue->fw_tx_qid);
1082         }
1083
1084         /* Update the link configuration in bulletin */
1085         memcpy(&link_params, qed_mcp_get_link_params(p_hwfn),
1086                sizeof(link_params));
1087         memcpy(&link_state, qed_mcp_get_link_state(p_hwfn), sizeof(link_state));
1088         memcpy(&link_caps, qed_mcp_get_link_capabilities(p_hwfn),
1089                sizeof(link_caps));
1090         qed_iov_set_link(p_hwfn, p_params->rel_vf_id,
1091                          &link_params, &link_state, &link_caps);
1092
1093         rc = qed_iov_enable_vf_access(p_hwfn, p_ptt, vf);
1094         if (!rc) {
1095                 vf->b_init = true;
1096
1097                 if (IS_LEAD_HWFN(p_hwfn))
1098                         p_hwfn->cdev->p_iov_info->num_vfs++;
1099         }
1100
1101         return rc;
1102 }
1103
1104 static int qed_iov_release_hw_for_vf(struct qed_hwfn *p_hwfn,
1105                                      struct qed_ptt *p_ptt, u16 rel_vf_id)
1106 {
1107         struct qed_mcp_link_capabilities caps;
1108         struct qed_mcp_link_params params;
1109         struct qed_mcp_link_state link;
1110         struct qed_vf_info *vf = NULL;
1111
1112         vf = qed_iov_get_vf_info(p_hwfn, rel_vf_id, true);
1113         if (!vf) {
1114                 DP_ERR(p_hwfn, "qed_iov_release_hw_for_vf : vf is NULL\n");
1115                 return -EINVAL;
1116         }
1117
1118         if (vf->bulletin.p_virt)
1119                 memset(vf->bulletin.p_virt, 0, sizeof(*vf->bulletin.p_virt));
1120
1121         memset(&vf->p_vf_info, 0, sizeof(vf->p_vf_info));
1122
1123         /* Get the link configuration back in bulletin so
1124          * that when VFs are re-enabled they get the actual
1125          * link configuration.
1126          */
1127         memcpy(&params, qed_mcp_get_link_params(p_hwfn), sizeof(params));
1128         memcpy(&link, qed_mcp_get_link_state(p_hwfn), sizeof(link));
1129         memcpy(&caps, qed_mcp_get_link_capabilities(p_hwfn), sizeof(caps));
1130         qed_iov_set_link(p_hwfn, rel_vf_id, &params, &link, &caps);
1131
1132         /* Forget the VF's acquisition message */
1133         memset(&vf->acquire, 0, sizeof(vf->acquire));
1134
1135         /* disablng interrupts and resetting permission table was done during
1136          * vf-close, however, we could get here without going through vf_close
1137          */
1138         /* Disable Interrupts for VF */
1139         qed_iov_vf_igu_set_int(p_hwfn, p_ptt, vf, 0);
1140
1141         /* Reset Permission table */
1142         qed_iov_config_perm_table(p_hwfn, p_ptt, vf, 0);
1143
1144         vf->num_rxqs = 0;
1145         vf->num_txqs = 0;
1146         qed_iov_free_vf_igu_sbs(p_hwfn, p_ptt, vf);
1147
1148         if (vf->b_init) {
1149                 vf->b_init = false;
1150
1151                 if (IS_LEAD_HWFN(p_hwfn))
1152                         p_hwfn->cdev->p_iov_info->num_vfs--;
1153         }
1154
1155         return 0;
1156 }
1157
1158 static bool qed_iov_tlv_supported(u16 tlvtype)
1159 {
1160         return CHANNEL_TLV_NONE < tlvtype && tlvtype < CHANNEL_TLV_MAX;
1161 }
1162
1163 /* place a given tlv on the tlv buffer, continuing current tlv list */
1164 void *qed_add_tlv(struct qed_hwfn *p_hwfn, u8 **offset, u16 type, u16 length)
1165 {
1166         struct channel_tlv *tl = (struct channel_tlv *)*offset;
1167
1168         tl->type = type;
1169         tl->length = length;
1170
1171         /* Offset should keep pointing to next TLV (the end of the last) */
1172         *offset += length;
1173
1174         /* Return a pointer to the start of the added tlv */
1175         return *offset - length;
1176 }
1177
1178 /* list the types and lengths of the tlvs on the buffer */
1179 void qed_dp_tlv_list(struct qed_hwfn *p_hwfn, void *tlvs_list)
1180 {
1181         u16 i = 1, total_length = 0;
1182         struct channel_tlv *tlv;
1183
1184         do {
1185                 tlv = (struct channel_tlv *)((u8 *)tlvs_list + total_length);
1186
1187                 /* output tlv */
1188                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1189                            "TLV number %d: type %d, length %d\n",
1190                            i, tlv->type, tlv->length);
1191
1192                 if (tlv->type == CHANNEL_TLV_LIST_END)
1193                         return;
1194
1195                 /* Validate entry - protect against malicious VFs */
1196                 if (!tlv->length) {
1197                         DP_NOTICE(p_hwfn, "TLV of length 0 found\n");
1198                         return;
1199                 }
1200
1201                 total_length += tlv->length;
1202
1203                 if (total_length >= sizeof(struct tlv_buffer_size)) {
1204                         DP_NOTICE(p_hwfn, "TLV ==> Buffer overflow\n");
1205                         return;
1206                 }
1207
1208                 i++;
1209         } while (1);
1210 }
1211
1212 static void qed_iov_send_response(struct qed_hwfn *p_hwfn,
1213                                   struct qed_ptt *p_ptt,
1214                                   struct qed_vf_info *p_vf,
1215                                   u16 length, u8 status)
1216 {
1217         struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
1218         struct qed_dmae_params params;
1219         u8 eng_vf_id;
1220
1221         mbx->reply_virt->default_resp.hdr.status = status;
1222
1223         qed_dp_tlv_list(p_hwfn, mbx->reply_virt);
1224
1225         eng_vf_id = p_vf->abs_vf_id;
1226
1227         memset(&params, 0, sizeof(struct qed_dmae_params));
1228         params.flags = QED_DMAE_FLAG_VF_DST;
1229         params.dst_vfid = eng_vf_id;
1230
1231         qed_dmae_host2host(p_hwfn, p_ptt, mbx->reply_phys + sizeof(u64),
1232                            mbx->req_virt->first_tlv.reply_address +
1233                            sizeof(u64),
1234                            (sizeof(union pfvf_tlvs) - sizeof(u64)) / 4,
1235                            &params);
1236
1237         /* Once PF copies the rc to the VF, the latter can continue
1238          * and send an additional message. So we have to make sure the
1239          * channel would be re-set to ready prior to that.
1240          */
1241         REG_WR(p_hwfn,
1242                GTT_BAR0_MAP_REG_USDM_RAM +
1243                USTORM_VF_PF_CHANNEL_READY_OFFSET(eng_vf_id), 1);
1244
1245         qed_dmae_host2host(p_hwfn, p_ptt, mbx->reply_phys,
1246                            mbx->req_virt->first_tlv.reply_address,
1247                            sizeof(u64) / 4, &params);
1248 }
1249
1250 static u16 qed_iov_vport_to_tlv(struct qed_hwfn *p_hwfn,
1251                                 enum qed_iov_vport_update_flag flag)
1252 {
1253         switch (flag) {
1254         case QED_IOV_VP_UPDATE_ACTIVATE:
1255                 return CHANNEL_TLV_VPORT_UPDATE_ACTIVATE;
1256         case QED_IOV_VP_UPDATE_VLAN_STRIP:
1257                 return CHANNEL_TLV_VPORT_UPDATE_VLAN_STRIP;
1258         case QED_IOV_VP_UPDATE_TX_SWITCH:
1259                 return CHANNEL_TLV_VPORT_UPDATE_TX_SWITCH;
1260         case QED_IOV_VP_UPDATE_MCAST:
1261                 return CHANNEL_TLV_VPORT_UPDATE_MCAST;
1262         case QED_IOV_VP_UPDATE_ACCEPT_PARAM:
1263                 return CHANNEL_TLV_VPORT_UPDATE_ACCEPT_PARAM;
1264         case QED_IOV_VP_UPDATE_RSS:
1265                 return CHANNEL_TLV_VPORT_UPDATE_RSS;
1266         case QED_IOV_VP_UPDATE_ACCEPT_ANY_VLAN:
1267                 return CHANNEL_TLV_VPORT_UPDATE_ACCEPT_ANY_VLAN;
1268         case QED_IOV_VP_UPDATE_SGE_TPA:
1269                 return CHANNEL_TLV_VPORT_UPDATE_SGE_TPA;
1270         default:
1271                 return 0;
1272         }
1273 }
1274
1275 static u16 qed_iov_prep_vp_update_resp_tlvs(struct qed_hwfn *p_hwfn,
1276                                             struct qed_vf_info *p_vf,
1277                                             struct qed_iov_vf_mbx *p_mbx,
1278                                             u8 status,
1279                                             u16 tlvs_mask, u16 tlvs_accepted)
1280 {
1281         struct pfvf_def_resp_tlv *resp;
1282         u16 size, total_len, i;
1283
1284         memset(p_mbx->reply_virt, 0, sizeof(union pfvf_tlvs));
1285         p_mbx->offset = (u8 *)p_mbx->reply_virt;
1286         size = sizeof(struct pfvf_def_resp_tlv);
1287         total_len = size;
1288
1289         qed_add_tlv(p_hwfn, &p_mbx->offset, CHANNEL_TLV_VPORT_UPDATE, size);
1290
1291         /* Prepare response for all extended tlvs if they are found by PF */
1292         for (i = 0; i < QED_IOV_VP_UPDATE_MAX; i++) {
1293                 if (!(tlvs_mask & BIT(i)))
1294                         continue;
1295
1296                 resp = qed_add_tlv(p_hwfn, &p_mbx->offset,
1297                                    qed_iov_vport_to_tlv(p_hwfn, i), size);
1298
1299                 if (tlvs_accepted & BIT(i))
1300                         resp->hdr.status = status;
1301                 else
1302                         resp->hdr.status = PFVF_STATUS_NOT_SUPPORTED;
1303
1304                 DP_VERBOSE(p_hwfn,
1305                            QED_MSG_IOV,
1306                            "VF[%d] - vport_update response: TLV %d, status %02x\n",
1307                            p_vf->relative_vf_id,
1308                            qed_iov_vport_to_tlv(p_hwfn, i), resp->hdr.status);
1309
1310                 total_len += size;
1311         }
1312
1313         qed_add_tlv(p_hwfn, &p_mbx->offset, CHANNEL_TLV_LIST_END,
1314                     sizeof(struct channel_list_end_tlv));
1315
1316         return total_len;
1317 }
1318
1319 static void qed_iov_prepare_resp(struct qed_hwfn *p_hwfn,
1320                                  struct qed_ptt *p_ptt,
1321                                  struct qed_vf_info *vf_info,
1322                                  u16 type, u16 length, u8 status)
1323 {
1324         struct qed_iov_vf_mbx *mbx = &vf_info->vf_mbx;
1325
1326         mbx->offset = (u8 *)mbx->reply_virt;
1327
1328         qed_add_tlv(p_hwfn, &mbx->offset, type, length);
1329         qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
1330                     sizeof(struct channel_list_end_tlv));
1331
1332         qed_iov_send_response(p_hwfn, p_ptt, vf_info, length, status);
1333 }
1334
1335 static struct
1336 qed_public_vf_info *qed_iov_get_public_vf_info(struct qed_hwfn *p_hwfn,
1337                                                u16 relative_vf_id,
1338                                                bool b_enabled_only)
1339 {
1340         struct qed_vf_info *vf = NULL;
1341
1342         vf = qed_iov_get_vf_info(p_hwfn, relative_vf_id, b_enabled_only);
1343         if (!vf)
1344                 return NULL;
1345
1346         return &vf->p_vf_info;
1347 }
1348
1349 static void qed_iov_clean_vf(struct qed_hwfn *p_hwfn, u8 vfid)
1350 {
1351         struct qed_public_vf_info *vf_info;
1352
1353         vf_info = qed_iov_get_public_vf_info(p_hwfn, vfid, false);
1354
1355         if (!vf_info)
1356                 return;
1357
1358         /* Clear the VF mac */
1359         eth_zero_addr(vf_info->mac);
1360
1361         vf_info->rx_accept_mode = 0;
1362         vf_info->tx_accept_mode = 0;
1363 }
1364
1365 static void qed_iov_vf_cleanup(struct qed_hwfn *p_hwfn,
1366                                struct qed_vf_info *p_vf)
1367 {
1368         u32 i, j;
1369
1370         p_vf->vf_bulletin = 0;
1371         p_vf->vport_instance = 0;
1372         p_vf->configured_features = 0;
1373
1374         /* If VF previously requested less resources, go back to default */
1375         p_vf->num_rxqs = p_vf->num_sbs;
1376         p_vf->num_txqs = p_vf->num_sbs;
1377
1378         p_vf->num_active_rxqs = 0;
1379
1380         for (i = 0; i < QED_MAX_VF_CHAINS_PER_PF; i++) {
1381                 struct qed_vf_queue *p_queue = &p_vf->vf_queues[i];
1382
1383                 for (j = 0; j < MAX_QUEUES_PER_QZONE; j++) {
1384                         if (!p_queue->cids[j].p_cid)
1385                                 continue;
1386
1387                         qed_eth_queue_cid_release(p_hwfn,
1388                                                   p_queue->cids[j].p_cid);
1389                         p_queue->cids[j].p_cid = NULL;
1390                 }
1391         }
1392
1393         memset(&p_vf->shadow_config, 0, sizeof(p_vf->shadow_config));
1394         memset(&p_vf->acquire, 0, sizeof(p_vf->acquire));
1395         qed_iov_clean_vf(p_hwfn, p_vf->relative_vf_id);
1396 }
1397
1398 /* Returns either 0, or log(size) */
1399 static u32 qed_iov_vf_db_bar_size(struct qed_hwfn *p_hwfn,
1400                                   struct qed_ptt *p_ptt)
1401 {
1402         u32 val = qed_rd(p_hwfn, p_ptt, PGLUE_B_REG_VF_BAR1_SIZE);
1403
1404         if (val)
1405                 return val + 11;
1406         return 0;
1407 }
1408
1409 static void
1410 qed_iov_vf_mbx_acquire_resc_cids(struct qed_hwfn *p_hwfn,
1411                                  struct qed_ptt *p_ptt,
1412                                  struct qed_vf_info *p_vf,
1413                                  struct vf_pf_resc_request *p_req,
1414                                  struct pf_vf_resc *p_resp)
1415 {
1416         u8 num_vf_cons = p_hwfn->pf_params.eth_pf_params.num_vf_cons;
1417         u8 db_size = qed_db_addr_vf(1, DQ_DEMS_LEGACY) -
1418                      qed_db_addr_vf(0, DQ_DEMS_LEGACY);
1419         u32 bar_size;
1420
1421         p_resp->num_cids = min_t(u8, p_req->num_cids, num_vf_cons);
1422
1423         /* If VF didn't bother asking for QIDs than don't bother limiting
1424          * number of CIDs. The VF doesn't care about the number, and this
1425          * has the likely result of causing an additional acquisition.
1426          */
1427         if (!(p_vf->acquire.vfdev_info.capabilities &
1428               VFPF_ACQUIRE_CAP_QUEUE_QIDS))
1429                 return;
1430
1431         /* If doorbell bar was mapped by VF, limit the VF CIDs to an amount
1432          * that would make sure doorbells for all CIDs fall within the bar.
1433          * If it doesn't, make sure regview window is sufficient.
1434          */
1435         if (p_vf->acquire.vfdev_info.capabilities &
1436             VFPF_ACQUIRE_CAP_PHYSICAL_BAR) {
1437                 bar_size = qed_iov_vf_db_bar_size(p_hwfn, p_ptt);
1438                 if (bar_size)
1439                         bar_size = 1 << bar_size;
1440
1441                 if (p_hwfn->cdev->num_hwfns > 1)
1442                         bar_size /= 2;
1443         } else {
1444                 bar_size = PXP_VF_BAR0_DQ_LENGTH;
1445         }
1446
1447         if (bar_size / db_size < 256)
1448                 p_resp->num_cids = min_t(u8, p_resp->num_cids,
1449                                          (u8)(bar_size / db_size));
1450 }
1451
1452 static u8 qed_iov_vf_mbx_acquire_resc(struct qed_hwfn *p_hwfn,
1453                                       struct qed_ptt *p_ptt,
1454                                       struct qed_vf_info *p_vf,
1455                                       struct vf_pf_resc_request *p_req,
1456                                       struct pf_vf_resc *p_resp)
1457 {
1458         u8 i;
1459
1460         /* Queue related information */
1461         p_resp->num_rxqs = p_vf->num_rxqs;
1462         p_resp->num_txqs = p_vf->num_txqs;
1463         p_resp->num_sbs = p_vf->num_sbs;
1464
1465         for (i = 0; i < p_resp->num_sbs; i++) {
1466                 p_resp->hw_sbs[i].hw_sb_id = p_vf->igu_sbs[i];
1467                 p_resp->hw_sbs[i].sb_qid = 0;
1468         }
1469
1470         /* These fields are filled for backward compatibility.
1471          * Unused by modern vfs.
1472          */
1473         for (i = 0; i < p_resp->num_rxqs; i++) {
1474                 qed_fw_l2_queue(p_hwfn, p_vf->vf_queues[i].fw_rx_qid,
1475                                 (u16 *)&p_resp->hw_qid[i]);
1476                 p_resp->cid[i] = i;
1477         }
1478
1479         /* Filter related information */
1480         p_resp->num_mac_filters = min_t(u8, p_vf->num_mac_filters,
1481                                         p_req->num_mac_filters);
1482         p_resp->num_vlan_filters = min_t(u8, p_vf->num_vlan_filters,
1483                                          p_req->num_vlan_filters);
1484
1485         qed_iov_vf_mbx_acquire_resc_cids(p_hwfn, p_ptt, p_vf, p_req, p_resp);
1486
1487         /* This isn't really needed/enforced, but some legacy VFs might depend
1488          * on the correct filling of this field.
1489          */
1490         p_resp->num_mc_filters = QED_MAX_MC_ADDRS;
1491
1492         /* Validate sufficient resources for VF */
1493         if (p_resp->num_rxqs < p_req->num_rxqs ||
1494             p_resp->num_txqs < p_req->num_txqs ||
1495             p_resp->num_sbs < p_req->num_sbs ||
1496             p_resp->num_mac_filters < p_req->num_mac_filters ||
1497             p_resp->num_vlan_filters < p_req->num_vlan_filters ||
1498             p_resp->num_mc_filters < p_req->num_mc_filters ||
1499             p_resp->num_cids < p_req->num_cids) {
1500                 DP_VERBOSE(p_hwfn,
1501                            QED_MSG_IOV,
1502                            "VF[%d] - Insufficient resources: rxq [%02x/%02x] txq [%02x/%02x] sbs [%02x/%02x] mac [%02x/%02x] vlan [%02x/%02x] mc [%02x/%02x] cids [%02x/%02x]\n",
1503                            p_vf->abs_vf_id,
1504                            p_req->num_rxqs,
1505                            p_resp->num_rxqs,
1506                            p_req->num_rxqs,
1507                            p_resp->num_txqs,
1508                            p_req->num_sbs,
1509                            p_resp->num_sbs,
1510                            p_req->num_mac_filters,
1511                            p_resp->num_mac_filters,
1512                            p_req->num_vlan_filters,
1513                            p_resp->num_vlan_filters,
1514                            p_req->num_mc_filters,
1515                            p_resp->num_mc_filters,
1516                            p_req->num_cids, p_resp->num_cids);
1517
1518                 /* Some legacy OSes are incapable of correctly handling this
1519                  * failure.
1520                  */
1521                 if ((p_vf->acquire.vfdev_info.eth_fp_hsi_minor ==
1522                      ETH_HSI_VER_NO_PKT_LEN_TUNN) &&
1523                     (p_vf->acquire.vfdev_info.os_type ==
1524                      VFPF_ACQUIRE_OS_WINDOWS))
1525                         return PFVF_STATUS_SUCCESS;
1526
1527                 return PFVF_STATUS_NO_RESOURCE;
1528         }
1529
1530         return PFVF_STATUS_SUCCESS;
1531 }
1532
1533 static void qed_iov_vf_mbx_acquire_stats(struct qed_hwfn *p_hwfn,
1534                                          struct pfvf_stats_info *p_stats)
1535 {
1536         p_stats->mstats.address = PXP_VF_BAR0_START_MSDM_ZONE_B +
1537                                   offsetof(struct mstorm_vf_zone,
1538                                            non_trigger.eth_queue_stat);
1539         p_stats->mstats.len = sizeof(struct eth_mstorm_per_queue_stat);
1540         p_stats->ustats.address = PXP_VF_BAR0_START_USDM_ZONE_B +
1541                                   offsetof(struct ustorm_vf_zone,
1542                                            non_trigger.eth_queue_stat);
1543         p_stats->ustats.len = sizeof(struct eth_ustorm_per_queue_stat);
1544         p_stats->pstats.address = PXP_VF_BAR0_START_PSDM_ZONE_B +
1545                                   offsetof(struct pstorm_vf_zone,
1546                                            non_trigger.eth_queue_stat);
1547         p_stats->pstats.len = sizeof(struct eth_pstorm_per_queue_stat);
1548         p_stats->tstats.address = 0;
1549         p_stats->tstats.len = 0;
1550 }
1551
1552 static void qed_iov_vf_mbx_acquire(struct qed_hwfn *p_hwfn,
1553                                    struct qed_ptt *p_ptt,
1554                                    struct qed_vf_info *vf)
1555 {
1556         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
1557         struct pfvf_acquire_resp_tlv *resp = &mbx->reply_virt->acquire_resp;
1558         struct pf_vf_pfdev_info *pfdev_info = &resp->pfdev_info;
1559         struct vfpf_acquire_tlv *req = &mbx->req_virt->acquire;
1560         u8 vfpf_status = PFVF_STATUS_NOT_SUPPORTED;
1561         struct pf_vf_resc *resc = &resp->resc;
1562         int rc;
1563
1564         memset(resp, 0, sizeof(*resp));
1565
1566         /* Write the PF version so that VF would know which version
1567          * is supported - might be later overriden. This guarantees that
1568          * VF could recognize legacy PF based on lack of versions in reply.
1569          */
1570         pfdev_info->major_fp_hsi = ETH_HSI_VER_MAJOR;
1571         pfdev_info->minor_fp_hsi = ETH_HSI_VER_MINOR;
1572
1573         if (vf->state != VF_FREE && vf->state != VF_STOPPED) {
1574                 DP_VERBOSE(p_hwfn,
1575                            QED_MSG_IOV,
1576                            "VF[%d] sent ACQUIRE but is already in state %d - fail request\n",
1577                            vf->abs_vf_id, vf->state);
1578                 goto out;
1579         }
1580
1581         /* Validate FW compatibility */
1582         if (req->vfdev_info.eth_fp_hsi_major != ETH_HSI_VER_MAJOR) {
1583                 if (req->vfdev_info.capabilities &
1584                     VFPF_ACQUIRE_CAP_PRE_FP_HSI) {
1585                         struct vf_pf_vfdev_info *p_vfdev = &req->vfdev_info;
1586
1587                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1588                                    "VF[%d] is pre-fastpath HSI\n",
1589                                    vf->abs_vf_id);
1590                         p_vfdev->eth_fp_hsi_major = ETH_HSI_VER_MAJOR;
1591                         p_vfdev->eth_fp_hsi_minor = ETH_HSI_VER_NO_PKT_LEN_TUNN;
1592                 } else {
1593                         DP_INFO(p_hwfn,
1594                                 "VF[%d] needs fastpath HSI %02x.%02x, which is incompatible with loaded FW's faspath HSI %02x.%02x\n",
1595                                 vf->abs_vf_id,
1596                                 req->vfdev_info.eth_fp_hsi_major,
1597                                 req->vfdev_info.eth_fp_hsi_minor,
1598                                 ETH_HSI_VER_MAJOR, ETH_HSI_VER_MINOR);
1599
1600                         goto out;
1601                 }
1602         }
1603
1604         /* On 100g PFs, prevent old VFs from loading */
1605         if ((p_hwfn->cdev->num_hwfns > 1) &&
1606             !(req->vfdev_info.capabilities & VFPF_ACQUIRE_CAP_100G)) {
1607                 DP_INFO(p_hwfn,
1608                         "VF[%d] is running an old driver that doesn't support 100g\n",
1609                         vf->abs_vf_id);
1610                 goto out;
1611         }
1612
1613         /* Store the acquire message */
1614         memcpy(&vf->acquire, req, sizeof(vf->acquire));
1615
1616         vf->opaque_fid = req->vfdev_info.opaque_fid;
1617
1618         vf->vf_bulletin = req->bulletin_addr;
1619         vf->bulletin.size = (vf->bulletin.size < req->bulletin_size) ?
1620                             vf->bulletin.size : req->bulletin_size;
1621
1622         /* fill in pfdev info */
1623         pfdev_info->chip_num = p_hwfn->cdev->chip_num;
1624         pfdev_info->db_size = 0;
1625         pfdev_info->indices_per_sb = PIS_PER_SB_E4;
1626
1627         pfdev_info->capabilities = PFVF_ACQUIRE_CAP_DEFAULT_UNTAGGED |
1628                                    PFVF_ACQUIRE_CAP_POST_FW_OVERRIDE;
1629         if (p_hwfn->cdev->num_hwfns > 1)
1630                 pfdev_info->capabilities |= PFVF_ACQUIRE_CAP_100G;
1631
1632         /* Share our ability to use multiple queue-ids only with VFs
1633          * that request it.
1634          */
1635         if (req->vfdev_info.capabilities & VFPF_ACQUIRE_CAP_QUEUE_QIDS)
1636                 pfdev_info->capabilities |= PFVF_ACQUIRE_CAP_QUEUE_QIDS;
1637
1638         /* Share the sizes of the bars with VF */
1639         resp->pfdev_info.bar_size = qed_iov_vf_db_bar_size(p_hwfn, p_ptt);
1640
1641         qed_iov_vf_mbx_acquire_stats(p_hwfn, &pfdev_info->stats_info);
1642
1643         memcpy(pfdev_info->port_mac, p_hwfn->hw_info.hw_mac_addr, ETH_ALEN);
1644
1645         pfdev_info->fw_major = FW_MAJOR_VERSION;
1646         pfdev_info->fw_minor = FW_MINOR_VERSION;
1647         pfdev_info->fw_rev = FW_REVISION_VERSION;
1648         pfdev_info->fw_eng = FW_ENGINEERING_VERSION;
1649
1650         /* Incorrect when legacy, but doesn't matter as legacy isn't reading
1651          * this field.
1652          */
1653         pfdev_info->minor_fp_hsi = min_t(u8, ETH_HSI_VER_MINOR,
1654                                          req->vfdev_info.eth_fp_hsi_minor);
1655         pfdev_info->os_type = VFPF_ACQUIRE_OS_LINUX;
1656         qed_mcp_get_mfw_ver(p_hwfn, p_ptt, &pfdev_info->mfw_ver, NULL);
1657
1658         pfdev_info->dev_type = p_hwfn->cdev->type;
1659         pfdev_info->chip_rev = p_hwfn->cdev->chip_rev;
1660
1661         /* Fill resources available to VF; Make sure there are enough to
1662          * satisfy the VF's request.
1663          */
1664         vfpf_status = qed_iov_vf_mbx_acquire_resc(p_hwfn, p_ptt, vf,
1665                                                   &req->resc_request, resc);
1666         if (vfpf_status != PFVF_STATUS_SUCCESS)
1667                 goto out;
1668
1669         /* Start the VF in FW */
1670         rc = qed_sp_vf_start(p_hwfn, vf);
1671         if (rc) {
1672                 DP_NOTICE(p_hwfn, "Failed to start VF[%02x]\n", vf->abs_vf_id);
1673                 vfpf_status = PFVF_STATUS_FAILURE;
1674                 goto out;
1675         }
1676
1677         /* Fill agreed size of bulletin board in response */
1678         resp->bulletin_size = vf->bulletin.size;
1679         qed_iov_post_vf_bulletin(p_hwfn, vf->relative_vf_id, p_ptt);
1680
1681         DP_VERBOSE(p_hwfn,
1682                    QED_MSG_IOV,
1683                    "VF[%d] ACQUIRE_RESPONSE: pfdev_info- chip_num=0x%x, db_size=%d, idx_per_sb=%d, pf_cap=0x%llx\n"
1684                    "resources- n_rxq-%d, n_txq-%d, n_sbs-%d, n_macs-%d, n_vlans-%d\n",
1685                    vf->abs_vf_id,
1686                    resp->pfdev_info.chip_num,
1687                    resp->pfdev_info.db_size,
1688                    resp->pfdev_info.indices_per_sb,
1689                    resp->pfdev_info.capabilities,
1690                    resc->num_rxqs,
1691                    resc->num_txqs,
1692                    resc->num_sbs,
1693                    resc->num_mac_filters,
1694                    resc->num_vlan_filters);
1695         vf->state = VF_ACQUIRED;
1696
1697         /* Prepare Response */
1698 out:
1699         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_ACQUIRE,
1700                              sizeof(struct pfvf_acquire_resp_tlv), vfpf_status);
1701 }
1702
1703 static int __qed_iov_spoofchk_set(struct qed_hwfn *p_hwfn,
1704                                   struct qed_vf_info *p_vf, bool val)
1705 {
1706         struct qed_sp_vport_update_params params;
1707         int rc;
1708
1709         if (val == p_vf->spoof_chk) {
1710                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1711                            "Spoofchk value[%d] is already configured\n", val);
1712                 return 0;
1713         }
1714
1715         memset(&params, 0, sizeof(struct qed_sp_vport_update_params));
1716         params.opaque_fid = p_vf->opaque_fid;
1717         params.vport_id = p_vf->vport_id;
1718         params.update_anti_spoofing_en_flg = 1;
1719         params.anti_spoofing_en = val;
1720
1721         rc = qed_sp_vport_update(p_hwfn, &params, QED_SPQ_MODE_EBLOCK, NULL);
1722         if (!rc) {
1723                 p_vf->spoof_chk = val;
1724                 p_vf->req_spoofchk_val = p_vf->spoof_chk;
1725                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1726                            "Spoofchk val[%d] configured\n", val);
1727         } else {
1728                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1729                            "Spoofchk configuration[val:%d] failed for VF[%d]\n",
1730                            val, p_vf->relative_vf_id);
1731         }
1732
1733         return rc;
1734 }
1735
1736 static int qed_iov_reconfigure_unicast_vlan(struct qed_hwfn *p_hwfn,
1737                                             struct qed_vf_info *p_vf)
1738 {
1739         struct qed_filter_ucast filter;
1740         int rc = 0;
1741         int i;
1742
1743         memset(&filter, 0, sizeof(filter));
1744         filter.is_rx_filter = 1;
1745         filter.is_tx_filter = 1;
1746         filter.vport_to_add_to = p_vf->vport_id;
1747         filter.opcode = QED_FILTER_ADD;
1748
1749         /* Reconfigure vlans */
1750         for (i = 0; i < QED_ETH_VF_NUM_VLAN_FILTERS + 1; i++) {
1751                 if (!p_vf->shadow_config.vlans[i].used)
1752                         continue;
1753
1754                 filter.type = QED_FILTER_VLAN;
1755                 filter.vlan = p_vf->shadow_config.vlans[i].vid;
1756                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1757                            "Reconfiguring VLAN [0x%04x] for VF [%04x]\n",
1758                            filter.vlan, p_vf->relative_vf_id);
1759                 rc = qed_sp_eth_filter_ucast(p_hwfn, p_vf->opaque_fid,
1760                                              &filter, QED_SPQ_MODE_CB, NULL);
1761                 if (rc) {
1762                         DP_NOTICE(p_hwfn,
1763                                   "Failed to configure VLAN [%04x] to VF [%04x]\n",
1764                                   filter.vlan, p_vf->relative_vf_id);
1765                         break;
1766                 }
1767         }
1768
1769         return rc;
1770 }
1771
1772 static int
1773 qed_iov_reconfigure_unicast_shadow(struct qed_hwfn *p_hwfn,
1774                                    struct qed_vf_info *p_vf, u64 events)
1775 {
1776         int rc = 0;
1777
1778         if ((events & BIT(VLAN_ADDR_FORCED)) &&
1779             !(p_vf->configured_features & (1 << VLAN_ADDR_FORCED)))
1780                 rc = qed_iov_reconfigure_unicast_vlan(p_hwfn, p_vf);
1781
1782         return rc;
1783 }
1784
1785 static int qed_iov_configure_vport_forced(struct qed_hwfn *p_hwfn,
1786                                           struct qed_vf_info *p_vf, u64 events)
1787 {
1788         int rc = 0;
1789         struct qed_filter_ucast filter;
1790
1791         if (!p_vf->vport_instance)
1792                 return -EINVAL;
1793
1794         if ((events & BIT(MAC_ADDR_FORCED)) ||
1795             p_vf->p_vf_info.is_trusted_configured) {
1796                 /* Since there's no way [currently] of removing the MAC,
1797                  * we can always assume this means we need to force it.
1798                  */
1799                 memset(&filter, 0, sizeof(filter));
1800                 filter.type = QED_FILTER_MAC;
1801                 filter.opcode = QED_FILTER_REPLACE;
1802                 filter.is_rx_filter = 1;
1803                 filter.is_tx_filter = 1;
1804                 filter.vport_to_add_to = p_vf->vport_id;
1805                 ether_addr_copy(filter.mac, p_vf->bulletin.p_virt->mac);
1806
1807                 rc = qed_sp_eth_filter_ucast(p_hwfn, p_vf->opaque_fid,
1808                                              &filter, QED_SPQ_MODE_CB, NULL);
1809                 if (rc) {
1810                         DP_NOTICE(p_hwfn,
1811                                   "PF failed to configure MAC for VF\n");
1812                         return rc;
1813                 }
1814                 if (p_vf->p_vf_info.is_trusted_configured)
1815                         p_vf->configured_features |=
1816                                 BIT(VFPF_BULLETIN_MAC_ADDR);
1817                 else
1818                         p_vf->configured_features |=
1819                                 BIT(MAC_ADDR_FORCED);
1820         }
1821
1822         if (events & BIT(VLAN_ADDR_FORCED)) {
1823                 struct qed_sp_vport_update_params vport_update;
1824                 u8 removal;
1825                 int i;
1826
1827                 memset(&filter, 0, sizeof(filter));
1828                 filter.type = QED_FILTER_VLAN;
1829                 filter.is_rx_filter = 1;
1830                 filter.is_tx_filter = 1;
1831                 filter.vport_to_add_to = p_vf->vport_id;
1832                 filter.vlan = p_vf->bulletin.p_virt->pvid;
1833                 filter.opcode = filter.vlan ? QED_FILTER_REPLACE :
1834                                               QED_FILTER_FLUSH;
1835
1836                 /* Send the ramrod */
1837                 rc = qed_sp_eth_filter_ucast(p_hwfn, p_vf->opaque_fid,
1838                                              &filter, QED_SPQ_MODE_CB, NULL);
1839                 if (rc) {
1840                         DP_NOTICE(p_hwfn,
1841                                   "PF failed to configure VLAN for VF\n");
1842                         return rc;
1843                 }
1844
1845                 /* Update the default-vlan & silent vlan stripping */
1846                 memset(&vport_update, 0, sizeof(vport_update));
1847                 vport_update.opaque_fid = p_vf->opaque_fid;
1848                 vport_update.vport_id = p_vf->vport_id;
1849                 vport_update.update_default_vlan_enable_flg = 1;
1850                 vport_update.default_vlan_enable_flg = filter.vlan ? 1 : 0;
1851                 vport_update.update_default_vlan_flg = 1;
1852                 vport_update.default_vlan = filter.vlan;
1853
1854                 vport_update.update_inner_vlan_removal_flg = 1;
1855                 removal = filter.vlan ? 1
1856                                       : p_vf->shadow_config.inner_vlan_removal;
1857                 vport_update.inner_vlan_removal_flg = removal;
1858                 vport_update.silent_vlan_removal_flg = filter.vlan ? 1 : 0;
1859                 rc = qed_sp_vport_update(p_hwfn,
1860                                          &vport_update,
1861                                          QED_SPQ_MODE_EBLOCK, NULL);
1862                 if (rc) {
1863                         DP_NOTICE(p_hwfn,
1864                                   "PF failed to configure VF vport for vlan\n");
1865                         return rc;
1866                 }
1867
1868                 /* Update all the Rx queues */
1869                 for (i = 0; i < QED_MAX_VF_CHAINS_PER_PF; i++) {
1870                         struct qed_vf_queue *p_queue = &p_vf->vf_queues[i];
1871                         struct qed_queue_cid *p_cid = NULL;
1872
1873                         /* There can be at most 1 Rx queue on qzone. Find it */
1874                         p_cid = qed_iov_get_vf_rx_queue_cid(p_queue);
1875                         if (!p_cid)
1876                                 continue;
1877
1878                         rc = qed_sp_eth_rx_queues_update(p_hwfn,
1879                                                          (void **)&p_cid,
1880                                                          1, 0, 1,
1881                                                          QED_SPQ_MODE_EBLOCK,
1882                                                          NULL);
1883                         if (rc) {
1884                                 DP_NOTICE(p_hwfn,
1885                                           "Failed to send Rx update fo queue[0x%04x]\n",
1886                                           p_cid->rel.queue_id);
1887                                 return rc;
1888                         }
1889                 }
1890
1891                 if (filter.vlan)
1892                         p_vf->configured_features |= 1 << VLAN_ADDR_FORCED;
1893                 else
1894                         p_vf->configured_features &= ~BIT(VLAN_ADDR_FORCED);
1895         }
1896
1897         /* If forced features are terminated, we need to configure the shadow
1898          * configuration back again.
1899          */
1900         if (events)
1901                 qed_iov_reconfigure_unicast_shadow(p_hwfn, p_vf, events);
1902
1903         return rc;
1904 }
1905
1906 static void qed_iov_vf_mbx_start_vport(struct qed_hwfn *p_hwfn,
1907                                        struct qed_ptt *p_ptt,
1908                                        struct qed_vf_info *vf)
1909 {
1910         struct qed_sp_vport_start_params params = { 0 };
1911         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
1912         struct vfpf_vport_start_tlv *start;
1913         u8 status = PFVF_STATUS_SUCCESS;
1914         struct qed_vf_info *vf_info;
1915         u64 *p_bitmap;
1916         int sb_id;
1917         int rc;
1918
1919         vf_info = qed_iov_get_vf_info(p_hwfn, (u16) vf->relative_vf_id, true);
1920         if (!vf_info) {
1921                 DP_NOTICE(p_hwfn->cdev,
1922                           "Failed to get VF info, invalid vfid [%d]\n",
1923                           vf->relative_vf_id);
1924                 return;
1925         }
1926
1927         vf->state = VF_ENABLED;
1928         start = &mbx->req_virt->start_vport;
1929
1930         qed_iov_enable_vf_traffic(p_hwfn, p_ptt, vf);
1931
1932         /* Initialize Status block in CAU */
1933         for (sb_id = 0; sb_id < vf->num_sbs; sb_id++) {
1934                 if (!start->sb_addr[sb_id]) {
1935                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1936                                    "VF[%d] did not fill the address of SB %d\n",
1937                                    vf->relative_vf_id, sb_id);
1938                         break;
1939                 }
1940
1941                 qed_int_cau_conf_sb(p_hwfn, p_ptt,
1942                                     start->sb_addr[sb_id],
1943                                     vf->igu_sbs[sb_id], vf->abs_vf_id, 1);
1944         }
1945
1946         vf->mtu = start->mtu;
1947         vf->shadow_config.inner_vlan_removal = start->inner_vlan_removal;
1948
1949         /* Take into consideration configuration forced by hypervisor;
1950          * If none is configured, use the supplied VF values [for old
1951          * vfs that would still be fine, since they passed '0' as padding].
1952          */
1953         p_bitmap = &vf_info->bulletin.p_virt->valid_bitmap;
1954         if (!(*p_bitmap & BIT(VFPF_BULLETIN_UNTAGGED_DEFAULT_FORCED))) {
1955                 u8 vf_req = start->only_untagged;
1956
1957                 vf_info->bulletin.p_virt->default_only_untagged = vf_req;
1958                 *p_bitmap |= 1 << VFPF_BULLETIN_UNTAGGED_DEFAULT;
1959         }
1960
1961         params.tpa_mode = start->tpa_mode;
1962         params.remove_inner_vlan = start->inner_vlan_removal;
1963         params.tx_switching = true;
1964
1965         params.only_untagged = vf_info->bulletin.p_virt->default_only_untagged;
1966         params.drop_ttl0 = false;
1967         params.concrete_fid = vf->concrete_fid;
1968         params.opaque_fid = vf->opaque_fid;
1969         params.vport_id = vf->vport_id;
1970         params.max_buffers_per_cqe = start->max_buffers_per_cqe;
1971         params.mtu = vf->mtu;
1972         params.check_mac = true;
1973
1974         rc = qed_sp_eth_vport_start(p_hwfn, &params);
1975         if (rc) {
1976                 DP_ERR(p_hwfn,
1977                        "qed_iov_vf_mbx_start_vport returned error %d\n", rc);
1978                 status = PFVF_STATUS_FAILURE;
1979         } else {
1980                 vf->vport_instance++;
1981
1982                 /* Force configuration if needed on the newly opened vport */
1983                 qed_iov_configure_vport_forced(p_hwfn, vf, *p_bitmap);
1984
1985                 __qed_iov_spoofchk_set(p_hwfn, vf, vf->req_spoofchk_val);
1986         }
1987         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_VPORT_START,
1988                              sizeof(struct pfvf_def_resp_tlv), status);
1989 }
1990
1991 static void qed_iov_vf_mbx_stop_vport(struct qed_hwfn *p_hwfn,
1992                                       struct qed_ptt *p_ptt,
1993                                       struct qed_vf_info *vf)
1994 {
1995         u8 status = PFVF_STATUS_SUCCESS;
1996         int rc;
1997
1998         vf->vport_instance--;
1999         vf->spoof_chk = false;
2000
2001         if ((qed_iov_validate_active_rxq(p_hwfn, vf)) ||
2002             (qed_iov_validate_active_txq(p_hwfn, vf))) {
2003                 vf->b_malicious = true;
2004                 DP_NOTICE(p_hwfn,
2005                           "VF [%02x] - considered malicious; Unable to stop RX/TX queuess\n",
2006                           vf->abs_vf_id);
2007                 status = PFVF_STATUS_MALICIOUS;
2008                 goto out;
2009         }
2010
2011         rc = qed_sp_vport_stop(p_hwfn, vf->opaque_fid, vf->vport_id);
2012         if (rc) {
2013                 DP_ERR(p_hwfn, "qed_iov_vf_mbx_stop_vport returned error %d\n",
2014                        rc);
2015                 status = PFVF_STATUS_FAILURE;
2016         }
2017
2018         /* Forget the configuration on the vport */
2019         vf->configured_features = 0;
2020         memset(&vf->shadow_config, 0, sizeof(vf->shadow_config));
2021
2022 out:
2023         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_VPORT_TEARDOWN,
2024                              sizeof(struct pfvf_def_resp_tlv), status);
2025 }
2026
2027 static void qed_iov_vf_mbx_start_rxq_resp(struct qed_hwfn *p_hwfn,
2028                                           struct qed_ptt *p_ptt,
2029                                           struct qed_vf_info *vf,
2030                                           u8 status, bool b_legacy)
2031 {
2032         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2033         struct pfvf_start_queue_resp_tlv *p_tlv;
2034         struct vfpf_start_rxq_tlv *req;
2035         u16 length;
2036
2037         mbx->offset = (u8 *)mbx->reply_virt;
2038
2039         /* Taking a bigger struct instead of adding a TLV to list was a
2040          * mistake, but one which we're now stuck with, as some older
2041          * clients assume the size of the previous response.
2042          */
2043         if (!b_legacy)
2044                 length = sizeof(*p_tlv);
2045         else
2046                 length = sizeof(struct pfvf_def_resp_tlv);
2047
2048         p_tlv = qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_START_RXQ,
2049                             length);
2050         qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
2051                     sizeof(struct channel_list_end_tlv));
2052
2053         /* Update the TLV with the response */
2054         if ((status == PFVF_STATUS_SUCCESS) && !b_legacy) {
2055                 req = &mbx->req_virt->start_rxq;
2056                 p_tlv->offset = PXP_VF_BAR0_START_MSDM_ZONE_B +
2057                                 offsetof(struct mstorm_vf_zone,
2058                                          non_trigger.eth_rx_queue_producers) +
2059                                 sizeof(struct eth_rx_prod_data) * req->rx_qid;
2060         }
2061
2062         qed_iov_send_response(p_hwfn, p_ptt, vf, length, status);
2063 }
2064
2065 static u8 qed_iov_vf_mbx_qid(struct qed_hwfn *p_hwfn,
2066                              struct qed_vf_info *p_vf, bool b_is_tx)
2067 {
2068         struct qed_iov_vf_mbx *p_mbx = &p_vf->vf_mbx;
2069         struct vfpf_qid_tlv *p_qid_tlv;
2070
2071         /* Search for the qid if the VF published its going to provide it */
2072         if (!(p_vf->acquire.vfdev_info.capabilities &
2073               VFPF_ACQUIRE_CAP_QUEUE_QIDS)) {
2074                 if (b_is_tx)
2075                         return QED_IOV_LEGACY_QID_TX;
2076                 else
2077                         return QED_IOV_LEGACY_QID_RX;
2078         }
2079
2080         p_qid_tlv = (struct vfpf_qid_tlv *)
2081                     qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt,
2082                                              CHANNEL_TLV_QID);
2083         if (!p_qid_tlv) {
2084                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2085                            "VF[%2x]: Failed to provide qid\n",
2086                            p_vf->relative_vf_id);
2087
2088                 return QED_IOV_QID_INVALID;
2089         }
2090
2091         if (p_qid_tlv->qid >= MAX_QUEUES_PER_QZONE) {
2092                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2093                            "VF[%02x]: Provided qid out-of-bounds %02x\n",
2094                            p_vf->relative_vf_id, p_qid_tlv->qid);
2095                 return QED_IOV_QID_INVALID;
2096         }
2097
2098         return p_qid_tlv->qid;
2099 }
2100
2101 static void qed_iov_vf_mbx_start_rxq(struct qed_hwfn *p_hwfn,
2102                                      struct qed_ptt *p_ptt,
2103                                      struct qed_vf_info *vf)
2104 {
2105         struct qed_queue_start_common_params params;
2106         struct qed_queue_cid_vf_params vf_params;
2107         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2108         u8 status = PFVF_STATUS_NO_RESOURCE;
2109         u8 qid_usage_idx, vf_legacy = 0;
2110         struct vfpf_start_rxq_tlv *req;
2111         struct qed_vf_queue *p_queue;
2112         struct qed_queue_cid *p_cid;
2113         struct qed_sb_info sb_dummy;
2114         int rc;
2115
2116         req = &mbx->req_virt->start_rxq;
2117
2118         if (!qed_iov_validate_rxq(p_hwfn, vf, req->rx_qid,
2119                                   QED_IOV_VALIDATE_Q_DISABLE) ||
2120             !qed_iov_validate_sb(p_hwfn, vf, req->hw_sb))
2121                 goto out;
2122
2123         qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, false);
2124         if (qid_usage_idx == QED_IOV_QID_INVALID)
2125                 goto out;
2126
2127         p_queue = &vf->vf_queues[req->rx_qid];
2128         if (p_queue->cids[qid_usage_idx].p_cid)
2129                 goto out;
2130
2131         vf_legacy = qed_vf_calculate_legacy(vf);
2132
2133         /* Acquire a new queue-cid */
2134         memset(&params, 0, sizeof(params));
2135         params.queue_id = p_queue->fw_rx_qid;
2136         params.vport_id = vf->vport_id;
2137         params.stats_id = vf->abs_vf_id + 0x10;
2138         /* Since IGU index is passed via sb_info, construct a dummy one */
2139         memset(&sb_dummy, 0, sizeof(sb_dummy));
2140         sb_dummy.igu_sb_id = req->hw_sb;
2141         params.p_sb = &sb_dummy;
2142         params.sb_idx = req->sb_index;
2143
2144         memset(&vf_params, 0, sizeof(vf_params));
2145         vf_params.vfid = vf->relative_vf_id;
2146         vf_params.vf_qid = (u8)req->rx_qid;
2147         vf_params.vf_legacy = vf_legacy;
2148         vf_params.qid_usage_idx = qid_usage_idx;
2149         p_cid = qed_eth_queue_to_cid(p_hwfn, vf->opaque_fid,
2150                                      &params, true, &vf_params);
2151         if (!p_cid)
2152                 goto out;
2153
2154         /* Legacy VFs have their Producers in a different location, which they
2155          * calculate on their own and clean the producer prior to this.
2156          */
2157         if (!(vf_legacy & QED_QCID_LEGACY_VF_RX_PROD))
2158                 REG_WR(p_hwfn,
2159                        GTT_BAR0_MAP_REG_MSDM_RAM +
2160                        MSTORM_ETH_VF_PRODS_OFFSET(vf->abs_vf_id, req->rx_qid),
2161                        0);
2162
2163         rc = qed_eth_rxq_start_ramrod(p_hwfn, p_cid,
2164                                       req->bd_max_bytes,
2165                                       req->rxq_addr,
2166                                       req->cqe_pbl_addr, req->cqe_pbl_size);
2167         if (rc) {
2168                 status = PFVF_STATUS_FAILURE;
2169                 qed_eth_queue_cid_release(p_hwfn, p_cid);
2170         } else {
2171                 p_queue->cids[qid_usage_idx].p_cid = p_cid;
2172                 p_queue->cids[qid_usage_idx].b_is_tx = false;
2173                 status = PFVF_STATUS_SUCCESS;
2174                 vf->num_active_rxqs++;
2175         }
2176
2177 out:
2178         qed_iov_vf_mbx_start_rxq_resp(p_hwfn, p_ptt, vf, status,
2179                                       !!(vf_legacy &
2180                                          QED_QCID_LEGACY_VF_RX_PROD));
2181 }
2182
2183 static void
2184 qed_iov_pf_update_tun_response(struct pfvf_update_tunn_param_tlv *p_resp,
2185                                struct qed_tunnel_info *p_tun,
2186                                u16 tunn_feature_mask)
2187 {
2188         p_resp->tunn_feature_mask = tunn_feature_mask;
2189         p_resp->vxlan_mode = p_tun->vxlan.b_mode_enabled;
2190         p_resp->l2geneve_mode = p_tun->l2_geneve.b_mode_enabled;
2191         p_resp->ipgeneve_mode = p_tun->ip_geneve.b_mode_enabled;
2192         p_resp->l2gre_mode = p_tun->l2_gre.b_mode_enabled;
2193         p_resp->ipgre_mode = p_tun->l2_gre.b_mode_enabled;
2194         p_resp->vxlan_clss = p_tun->vxlan.tun_cls;
2195         p_resp->l2gre_clss = p_tun->l2_gre.tun_cls;
2196         p_resp->ipgre_clss = p_tun->ip_gre.tun_cls;
2197         p_resp->l2geneve_clss = p_tun->l2_geneve.tun_cls;
2198         p_resp->ipgeneve_clss = p_tun->ip_geneve.tun_cls;
2199         p_resp->geneve_udp_port = p_tun->geneve_port.port;
2200         p_resp->vxlan_udp_port = p_tun->vxlan_port.port;
2201 }
2202
2203 static void
2204 __qed_iov_pf_update_tun_param(struct vfpf_update_tunn_param_tlv *p_req,
2205                               struct qed_tunn_update_type *p_tun,
2206                               enum qed_tunn_mode mask, u8 tun_cls)
2207 {
2208         if (p_req->tun_mode_update_mask & BIT(mask)) {
2209                 p_tun->b_update_mode = true;
2210
2211                 if (p_req->tunn_mode & BIT(mask))
2212                         p_tun->b_mode_enabled = true;
2213         }
2214
2215         p_tun->tun_cls = tun_cls;
2216 }
2217
2218 static void
2219 qed_iov_pf_update_tun_param(struct vfpf_update_tunn_param_tlv *p_req,
2220                             struct qed_tunn_update_type *p_tun,
2221                             struct qed_tunn_update_udp_port *p_port,
2222                             enum qed_tunn_mode mask,
2223                             u8 tun_cls, u8 update_port, u16 port)
2224 {
2225         if (update_port) {
2226                 p_port->b_update_port = true;
2227                 p_port->port = port;
2228         }
2229
2230         __qed_iov_pf_update_tun_param(p_req, p_tun, mask, tun_cls);
2231 }
2232
2233 static bool
2234 qed_iov_pf_validate_tunn_param(struct vfpf_update_tunn_param_tlv *p_req)
2235 {
2236         bool b_update_requested = false;
2237
2238         if (p_req->tun_mode_update_mask || p_req->update_tun_cls ||
2239             p_req->update_geneve_port || p_req->update_vxlan_port)
2240                 b_update_requested = true;
2241
2242         return b_update_requested;
2243 }
2244
2245 static void qed_pf_validate_tunn_mode(struct qed_tunn_update_type *tun, int *rc)
2246 {
2247         if (tun->b_update_mode && !tun->b_mode_enabled) {
2248                 tun->b_update_mode = false;
2249                 *rc = -EINVAL;
2250         }
2251 }
2252
2253 static int
2254 qed_pf_validate_modify_tunn_config(struct qed_hwfn *p_hwfn,
2255                                    u16 *tun_features, bool *update,
2256                                    struct qed_tunnel_info *tun_src)
2257 {
2258         struct qed_eth_cb_ops *ops = p_hwfn->cdev->protocol_ops.eth;
2259         struct qed_tunnel_info *tun = &p_hwfn->cdev->tunnel;
2260         u16 bultn_vxlan_port, bultn_geneve_port;
2261         void *cookie = p_hwfn->cdev->ops_cookie;
2262         int i, rc = 0;
2263
2264         *tun_features = p_hwfn->cdev->tunn_feature_mask;
2265         bultn_vxlan_port = tun->vxlan_port.port;
2266         bultn_geneve_port = tun->geneve_port.port;
2267         qed_pf_validate_tunn_mode(&tun_src->vxlan, &rc);
2268         qed_pf_validate_tunn_mode(&tun_src->l2_geneve, &rc);
2269         qed_pf_validate_tunn_mode(&tun_src->ip_geneve, &rc);
2270         qed_pf_validate_tunn_mode(&tun_src->l2_gre, &rc);
2271         qed_pf_validate_tunn_mode(&tun_src->ip_gre, &rc);
2272
2273         if ((tun_src->b_update_rx_cls || tun_src->b_update_tx_cls) &&
2274             (tun_src->vxlan.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
2275              tun_src->l2_geneve.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
2276              tun_src->ip_geneve.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
2277              tun_src->l2_gre.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
2278              tun_src->ip_gre.tun_cls != QED_TUNN_CLSS_MAC_VLAN)) {
2279                 tun_src->b_update_rx_cls = false;
2280                 tun_src->b_update_tx_cls = false;
2281                 rc = -EINVAL;
2282         }
2283
2284         if (tun_src->vxlan_port.b_update_port) {
2285                 if (tun_src->vxlan_port.port == tun->vxlan_port.port) {
2286                         tun_src->vxlan_port.b_update_port = false;
2287                 } else {
2288                         *update = true;
2289                         bultn_vxlan_port = tun_src->vxlan_port.port;
2290                 }
2291         }
2292
2293         if (tun_src->geneve_port.b_update_port) {
2294                 if (tun_src->geneve_port.port == tun->geneve_port.port) {
2295                         tun_src->geneve_port.b_update_port = false;
2296                 } else {
2297                         *update = true;
2298                         bultn_geneve_port = tun_src->geneve_port.port;
2299                 }
2300         }
2301
2302         qed_for_each_vf(p_hwfn, i) {
2303                 qed_iov_bulletin_set_udp_ports(p_hwfn, i, bultn_vxlan_port,
2304                                                bultn_geneve_port);
2305         }
2306
2307         qed_schedule_iov(p_hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
2308         ops->ports_update(cookie, bultn_vxlan_port, bultn_geneve_port);
2309
2310         return rc;
2311 }
2312
2313 static void qed_iov_vf_mbx_update_tunn_param(struct qed_hwfn *p_hwfn,
2314                                              struct qed_ptt *p_ptt,
2315                                              struct qed_vf_info *p_vf)
2316 {
2317         struct qed_tunnel_info *p_tun = &p_hwfn->cdev->tunnel;
2318         struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
2319         struct pfvf_update_tunn_param_tlv *p_resp;
2320         struct vfpf_update_tunn_param_tlv *p_req;
2321         u8 status = PFVF_STATUS_SUCCESS;
2322         bool b_update_required = false;
2323         struct qed_tunnel_info tunn;
2324         u16 tunn_feature_mask = 0;
2325         int i, rc = 0;
2326
2327         mbx->offset = (u8 *)mbx->reply_virt;
2328
2329         memset(&tunn, 0, sizeof(tunn));
2330         p_req = &mbx->req_virt->tunn_param_update;
2331
2332         if (!qed_iov_pf_validate_tunn_param(p_req)) {
2333                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2334                            "No tunnel update requested by VF\n");
2335                 status = PFVF_STATUS_FAILURE;
2336                 goto send_resp;
2337         }
2338
2339         tunn.b_update_rx_cls = p_req->update_tun_cls;
2340         tunn.b_update_tx_cls = p_req->update_tun_cls;
2341
2342         qed_iov_pf_update_tun_param(p_req, &tunn.vxlan, &tunn.vxlan_port,
2343                                     QED_MODE_VXLAN_TUNN, p_req->vxlan_clss,
2344                                     p_req->update_vxlan_port,
2345                                     p_req->vxlan_port);
2346         qed_iov_pf_update_tun_param(p_req, &tunn.l2_geneve, &tunn.geneve_port,
2347                                     QED_MODE_L2GENEVE_TUNN,
2348                                     p_req->l2geneve_clss,
2349                                     p_req->update_geneve_port,
2350                                     p_req->geneve_port);
2351         __qed_iov_pf_update_tun_param(p_req, &tunn.ip_geneve,
2352                                       QED_MODE_IPGENEVE_TUNN,
2353                                       p_req->ipgeneve_clss);
2354         __qed_iov_pf_update_tun_param(p_req, &tunn.l2_gre,
2355                                       QED_MODE_L2GRE_TUNN, p_req->l2gre_clss);
2356         __qed_iov_pf_update_tun_param(p_req, &tunn.ip_gre,
2357                                       QED_MODE_IPGRE_TUNN, p_req->ipgre_clss);
2358
2359         /* If PF modifies VF's req then it should
2360          * still return an error in case of partial configuration
2361          * or modified configuration as opposed to requested one.
2362          */
2363         rc = qed_pf_validate_modify_tunn_config(p_hwfn, &tunn_feature_mask,
2364                                                 &b_update_required, &tunn);
2365
2366         if (rc)
2367                 status = PFVF_STATUS_FAILURE;
2368
2369         /* If QED client is willing to update anything ? */
2370         if (b_update_required) {
2371                 u16 geneve_port;
2372
2373                 rc = qed_sp_pf_update_tunn_cfg(p_hwfn, p_ptt, &tunn,
2374                                                QED_SPQ_MODE_EBLOCK, NULL);
2375                 if (rc)
2376                         status = PFVF_STATUS_FAILURE;
2377
2378                 geneve_port = p_tun->geneve_port.port;
2379                 qed_for_each_vf(p_hwfn, i) {
2380                         qed_iov_bulletin_set_udp_ports(p_hwfn, i,
2381                                                        p_tun->vxlan_port.port,
2382                                                        geneve_port);
2383                 }
2384         }
2385
2386 send_resp:
2387         p_resp = qed_add_tlv(p_hwfn, &mbx->offset,
2388                              CHANNEL_TLV_UPDATE_TUNN_PARAM, sizeof(*p_resp));
2389
2390         qed_iov_pf_update_tun_response(p_resp, p_tun, tunn_feature_mask);
2391         qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
2392                     sizeof(struct channel_list_end_tlv));
2393
2394         qed_iov_send_response(p_hwfn, p_ptt, p_vf, sizeof(*p_resp), status);
2395 }
2396
2397 static void qed_iov_vf_mbx_start_txq_resp(struct qed_hwfn *p_hwfn,
2398                                           struct qed_ptt *p_ptt,
2399                                           struct qed_vf_info *p_vf,
2400                                           u32 cid, u8 status)
2401 {
2402         struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
2403         struct pfvf_start_queue_resp_tlv *p_tlv;
2404         bool b_legacy = false;
2405         u16 length;
2406
2407         mbx->offset = (u8 *)mbx->reply_virt;
2408
2409         /* Taking a bigger struct instead of adding a TLV to list was a
2410          * mistake, but one which we're now stuck with, as some older
2411          * clients assume the size of the previous response.
2412          */
2413         if (p_vf->acquire.vfdev_info.eth_fp_hsi_minor ==
2414             ETH_HSI_VER_NO_PKT_LEN_TUNN)
2415                 b_legacy = true;
2416
2417         if (!b_legacy)
2418                 length = sizeof(*p_tlv);
2419         else
2420                 length = sizeof(struct pfvf_def_resp_tlv);
2421
2422         p_tlv = qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_START_TXQ,
2423                             length);
2424         qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
2425                     sizeof(struct channel_list_end_tlv));
2426
2427         /* Update the TLV with the response */
2428         if ((status == PFVF_STATUS_SUCCESS) && !b_legacy)
2429                 p_tlv->offset = qed_db_addr_vf(cid, DQ_DEMS_LEGACY);
2430
2431         qed_iov_send_response(p_hwfn, p_ptt, p_vf, length, status);
2432 }
2433
2434 static void qed_iov_vf_mbx_start_txq(struct qed_hwfn *p_hwfn,
2435                                      struct qed_ptt *p_ptt,
2436                                      struct qed_vf_info *vf)
2437 {
2438         struct qed_queue_start_common_params params;
2439         struct qed_queue_cid_vf_params vf_params;
2440         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2441         u8 status = PFVF_STATUS_NO_RESOURCE;
2442         struct vfpf_start_txq_tlv *req;
2443         struct qed_vf_queue *p_queue;
2444         struct qed_queue_cid *p_cid;
2445         struct qed_sb_info sb_dummy;
2446         u8 qid_usage_idx, vf_legacy;
2447         u32 cid = 0;
2448         int rc;
2449         u16 pq;
2450
2451         memset(&params, 0, sizeof(params));
2452         req = &mbx->req_virt->start_txq;
2453
2454         if (!qed_iov_validate_txq(p_hwfn, vf, req->tx_qid,
2455                                   QED_IOV_VALIDATE_Q_NA) ||
2456             !qed_iov_validate_sb(p_hwfn, vf, req->hw_sb))
2457                 goto out;
2458
2459         qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, true);
2460         if (qid_usage_idx == QED_IOV_QID_INVALID)
2461                 goto out;
2462
2463         p_queue = &vf->vf_queues[req->tx_qid];
2464         if (p_queue->cids[qid_usage_idx].p_cid)
2465                 goto out;
2466
2467         vf_legacy = qed_vf_calculate_legacy(vf);
2468
2469         /* Acquire a new queue-cid */
2470         params.queue_id = p_queue->fw_tx_qid;
2471         params.vport_id = vf->vport_id;
2472         params.stats_id = vf->abs_vf_id + 0x10;
2473
2474         /* Since IGU index is passed via sb_info, construct a dummy one */
2475         memset(&sb_dummy, 0, sizeof(sb_dummy));
2476         sb_dummy.igu_sb_id = req->hw_sb;
2477         params.p_sb = &sb_dummy;
2478         params.sb_idx = req->sb_index;
2479
2480         memset(&vf_params, 0, sizeof(vf_params));
2481         vf_params.vfid = vf->relative_vf_id;
2482         vf_params.vf_qid = (u8)req->tx_qid;
2483         vf_params.vf_legacy = vf_legacy;
2484         vf_params.qid_usage_idx = qid_usage_idx;
2485
2486         p_cid = qed_eth_queue_to_cid(p_hwfn, vf->opaque_fid,
2487                                      &params, false, &vf_params);
2488         if (!p_cid)
2489                 goto out;
2490
2491         pq = qed_get_cm_pq_idx_vf(p_hwfn, vf->relative_vf_id);
2492         rc = qed_eth_txq_start_ramrod(p_hwfn, p_cid,
2493                                       req->pbl_addr, req->pbl_size, pq);
2494         if (rc) {
2495                 status = PFVF_STATUS_FAILURE;
2496                 qed_eth_queue_cid_release(p_hwfn, p_cid);
2497         } else {
2498                 status = PFVF_STATUS_SUCCESS;
2499                 p_queue->cids[qid_usage_idx].p_cid = p_cid;
2500                 p_queue->cids[qid_usage_idx].b_is_tx = true;
2501                 cid = p_cid->cid;
2502         }
2503
2504 out:
2505         qed_iov_vf_mbx_start_txq_resp(p_hwfn, p_ptt, vf, cid, status);
2506 }
2507
2508 static int qed_iov_vf_stop_rxqs(struct qed_hwfn *p_hwfn,
2509                                 struct qed_vf_info *vf,
2510                                 u16 rxq_id,
2511                                 u8 qid_usage_idx, bool cqe_completion)
2512 {
2513         struct qed_vf_queue *p_queue;
2514         int rc = 0;
2515
2516         if (!qed_iov_validate_rxq(p_hwfn, vf, rxq_id, QED_IOV_VALIDATE_Q_NA)) {
2517                 DP_VERBOSE(p_hwfn,
2518                            QED_MSG_IOV,
2519                            "VF[%d] Tried Closing Rx 0x%04x.%02x which is inactive\n",
2520                            vf->relative_vf_id, rxq_id, qid_usage_idx);
2521                 return -EINVAL;
2522         }
2523
2524         p_queue = &vf->vf_queues[rxq_id];
2525
2526         /* We've validated the index and the existence of the active RXQ -
2527          * now we need to make sure that it's using the correct qid.
2528          */
2529         if (!p_queue->cids[qid_usage_idx].p_cid ||
2530             p_queue->cids[qid_usage_idx].b_is_tx) {
2531                 struct qed_queue_cid *p_cid;
2532
2533                 p_cid = qed_iov_get_vf_rx_queue_cid(p_queue);
2534                 DP_VERBOSE(p_hwfn,
2535                            QED_MSG_IOV,
2536                            "VF[%d] - Tried Closing Rx 0x%04x.%02x, but Rx is at %04x.%02x\n",
2537                            vf->relative_vf_id,
2538                            rxq_id, qid_usage_idx, rxq_id, p_cid->qid_usage_idx);
2539                 return -EINVAL;
2540         }
2541
2542         /* Now that we know we have a valid Rx-queue - close it */
2543         rc = qed_eth_rx_queue_stop(p_hwfn,
2544                                    p_queue->cids[qid_usage_idx].p_cid,
2545                                    false, cqe_completion);
2546         if (rc)
2547                 return rc;
2548
2549         p_queue->cids[qid_usage_idx].p_cid = NULL;
2550         vf->num_active_rxqs--;
2551
2552         return 0;
2553 }
2554
2555 static int qed_iov_vf_stop_txqs(struct qed_hwfn *p_hwfn,
2556                                 struct qed_vf_info *vf,
2557                                 u16 txq_id, u8 qid_usage_idx)
2558 {
2559         struct qed_vf_queue *p_queue;
2560         int rc = 0;
2561
2562         if (!qed_iov_validate_txq(p_hwfn, vf, txq_id, QED_IOV_VALIDATE_Q_NA))
2563                 return -EINVAL;
2564
2565         p_queue = &vf->vf_queues[txq_id];
2566         if (!p_queue->cids[qid_usage_idx].p_cid ||
2567             !p_queue->cids[qid_usage_idx].b_is_tx)
2568                 return -EINVAL;
2569
2570         rc = qed_eth_tx_queue_stop(p_hwfn, p_queue->cids[qid_usage_idx].p_cid);
2571         if (rc)
2572                 return rc;
2573
2574         p_queue->cids[qid_usage_idx].p_cid = NULL;
2575         return 0;
2576 }
2577
2578 static void qed_iov_vf_mbx_stop_rxqs(struct qed_hwfn *p_hwfn,
2579                                      struct qed_ptt *p_ptt,
2580                                      struct qed_vf_info *vf)
2581 {
2582         u16 length = sizeof(struct pfvf_def_resp_tlv);
2583         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2584         u8 status = PFVF_STATUS_FAILURE;
2585         struct vfpf_stop_rxqs_tlv *req;
2586         u8 qid_usage_idx;
2587         int rc;
2588
2589         /* There has never been an official driver that used this interface
2590          * for stopping multiple queues, and it is now considered deprecated.
2591          * Validate this isn't used here.
2592          */
2593         req = &mbx->req_virt->stop_rxqs;
2594         if (req->num_rxqs != 1) {
2595                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2596                            "Odd; VF[%d] tried stopping multiple Rx queues\n",
2597                            vf->relative_vf_id);
2598                 status = PFVF_STATUS_NOT_SUPPORTED;
2599                 goto out;
2600         }
2601
2602         /* Find which qid-index is associated with the queue */
2603         qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, false);
2604         if (qid_usage_idx == QED_IOV_QID_INVALID)
2605                 goto out;
2606
2607         rc = qed_iov_vf_stop_rxqs(p_hwfn, vf, req->rx_qid,
2608                                   qid_usage_idx, req->cqe_completion);
2609         if (!rc)
2610                 status = PFVF_STATUS_SUCCESS;
2611 out:
2612         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_STOP_RXQS,
2613                              length, status);
2614 }
2615
2616 static void qed_iov_vf_mbx_stop_txqs(struct qed_hwfn *p_hwfn,
2617                                      struct qed_ptt *p_ptt,
2618                                      struct qed_vf_info *vf)
2619 {
2620         u16 length = sizeof(struct pfvf_def_resp_tlv);
2621         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2622         u8 status = PFVF_STATUS_FAILURE;
2623         struct vfpf_stop_txqs_tlv *req;
2624         u8 qid_usage_idx;
2625         int rc;
2626
2627         /* There has never been an official driver that used this interface
2628          * for stopping multiple queues, and it is now considered deprecated.
2629          * Validate this isn't used here.
2630          */
2631         req = &mbx->req_virt->stop_txqs;
2632         if (req->num_txqs != 1) {
2633                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2634                            "Odd; VF[%d] tried stopping multiple Tx queues\n",
2635                            vf->relative_vf_id);
2636                 status = PFVF_STATUS_NOT_SUPPORTED;
2637                 goto out;
2638         }
2639
2640         /* Find which qid-index is associated with the queue */
2641         qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, true);
2642         if (qid_usage_idx == QED_IOV_QID_INVALID)
2643                 goto out;
2644
2645         rc = qed_iov_vf_stop_txqs(p_hwfn, vf, req->tx_qid, qid_usage_idx);
2646         if (!rc)
2647                 status = PFVF_STATUS_SUCCESS;
2648
2649 out:
2650         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_STOP_TXQS,
2651                              length, status);
2652 }
2653
2654 static void qed_iov_vf_mbx_update_rxqs(struct qed_hwfn *p_hwfn,
2655                                        struct qed_ptt *p_ptt,
2656                                        struct qed_vf_info *vf)
2657 {
2658         struct qed_queue_cid *handlers[QED_MAX_VF_CHAINS_PER_PF];
2659         u16 length = sizeof(struct pfvf_def_resp_tlv);
2660         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2661         struct vfpf_update_rxq_tlv *req;
2662         u8 status = PFVF_STATUS_FAILURE;
2663         u8 complete_event_flg;
2664         u8 complete_cqe_flg;
2665         u8 qid_usage_idx;
2666         int rc;
2667         u8 i;
2668
2669         req = &mbx->req_virt->update_rxq;
2670         complete_cqe_flg = !!(req->flags & VFPF_RXQ_UPD_COMPLETE_CQE_FLAG);
2671         complete_event_flg = !!(req->flags & VFPF_RXQ_UPD_COMPLETE_EVENT_FLAG);
2672
2673         qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, false);
2674         if (qid_usage_idx == QED_IOV_QID_INVALID)
2675                 goto out;
2676
2677         /* There shouldn't exist a VF that uses queue-qids yet uses this
2678          * API with multiple Rx queues. Validate this.
2679          */
2680         if ((vf->acquire.vfdev_info.capabilities &
2681              VFPF_ACQUIRE_CAP_QUEUE_QIDS) && req->num_rxqs != 1) {
2682                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2683                            "VF[%d] supports QIDs but sends multiple queues\n",
2684                            vf->relative_vf_id);
2685                 goto out;
2686         }
2687
2688         /* Validate inputs - for the legacy case this is still true since
2689          * qid_usage_idx for each Rx queue would be LEGACY_QID_RX.
2690          */
2691         for (i = req->rx_qid; i < req->rx_qid + req->num_rxqs; i++) {
2692                 if (!qed_iov_validate_rxq(p_hwfn, vf, i,
2693                                           QED_IOV_VALIDATE_Q_NA) ||
2694                     !vf->vf_queues[i].cids[qid_usage_idx].p_cid ||
2695                     vf->vf_queues[i].cids[qid_usage_idx].b_is_tx) {
2696                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2697                                    "VF[%d]: Incorrect Rxqs [%04x, %02x]\n",
2698                                    vf->relative_vf_id, req->rx_qid,
2699                                    req->num_rxqs);
2700                         goto out;
2701                 }
2702         }
2703
2704         /* Prepare the handlers */
2705         for (i = 0; i < req->num_rxqs; i++) {
2706                 u16 qid = req->rx_qid + i;
2707
2708                 handlers[i] = vf->vf_queues[qid].cids[qid_usage_idx].p_cid;
2709         }
2710
2711         rc = qed_sp_eth_rx_queues_update(p_hwfn, (void **)&handlers,
2712                                          req->num_rxqs,
2713                                          complete_cqe_flg,
2714                                          complete_event_flg,
2715                                          QED_SPQ_MODE_EBLOCK, NULL);
2716         if (rc)
2717                 goto out;
2718
2719         status = PFVF_STATUS_SUCCESS;
2720 out:
2721         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_UPDATE_RXQ,
2722                              length, status);
2723 }
2724
2725 void *qed_iov_search_list_tlvs(struct qed_hwfn *p_hwfn,
2726                                void *p_tlvs_list, u16 req_type)
2727 {
2728         struct channel_tlv *p_tlv = (struct channel_tlv *)p_tlvs_list;
2729         int len = 0;
2730
2731         do {
2732                 if (!p_tlv->length) {
2733                         DP_NOTICE(p_hwfn, "Zero length TLV found\n");
2734                         return NULL;
2735                 }
2736
2737                 if (p_tlv->type == req_type) {
2738                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2739                                    "Extended tlv type %d, length %d found\n",
2740                                    p_tlv->type, p_tlv->length);
2741                         return p_tlv;
2742                 }
2743
2744                 len += p_tlv->length;
2745                 p_tlv = (struct channel_tlv *)((u8 *)p_tlv + p_tlv->length);
2746
2747                 if ((len + p_tlv->length) > TLV_BUFFER_SIZE) {
2748                         DP_NOTICE(p_hwfn, "TLVs has overrun the buffer size\n");
2749                         return NULL;
2750                 }
2751         } while (p_tlv->type != CHANNEL_TLV_LIST_END);
2752
2753         return NULL;
2754 }
2755
2756 static void
2757 qed_iov_vp_update_act_param(struct qed_hwfn *p_hwfn,
2758                             struct qed_sp_vport_update_params *p_data,
2759                             struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2760 {
2761         struct vfpf_vport_update_activate_tlv *p_act_tlv;
2762         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_ACTIVATE;
2763
2764         p_act_tlv = (struct vfpf_vport_update_activate_tlv *)
2765                     qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2766         if (!p_act_tlv)
2767                 return;
2768
2769         p_data->update_vport_active_rx_flg = p_act_tlv->update_rx;
2770         p_data->vport_active_rx_flg = p_act_tlv->active_rx;
2771         p_data->update_vport_active_tx_flg = p_act_tlv->update_tx;
2772         p_data->vport_active_tx_flg = p_act_tlv->active_tx;
2773         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_ACTIVATE;
2774 }
2775
2776 static void
2777 qed_iov_vp_update_vlan_param(struct qed_hwfn *p_hwfn,
2778                              struct qed_sp_vport_update_params *p_data,
2779                              struct qed_vf_info *p_vf,
2780                              struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2781 {
2782         struct vfpf_vport_update_vlan_strip_tlv *p_vlan_tlv;
2783         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_VLAN_STRIP;
2784
2785         p_vlan_tlv = (struct vfpf_vport_update_vlan_strip_tlv *)
2786                      qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2787         if (!p_vlan_tlv)
2788                 return;
2789
2790         p_vf->shadow_config.inner_vlan_removal = p_vlan_tlv->remove_vlan;
2791
2792         /* Ignore the VF request if we're forcing a vlan */
2793         if (!(p_vf->configured_features & BIT(VLAN_ADDR_FORCED))) {
2794                 p_data->update_inner_vlan_removal_flg = 1;
2795                 p_data->inner_vlan_removal_flg = p_vlan_tlv->remove_vlan;
2796         }
2797
2798         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_VLAN_STRIP;
2799 }
2800
2801 static void
2802 qed_iov_vp_update_tx_switch(struct qed_hwfn *p_hwfn,
2803                             struct qed_sp_vport_update_params *p_data,
2804                             struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2805 {
2806         struct vfpf_vport_update_tx_switch_tlv *p_tx_switch_tlv;
2807         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_TX_SWITCH;
2808
2809         p_tx_switch_tlv = (struct vfpf_vport_update_tx_switch_tlv *)
2810                           qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt,
2811                                                    tlv);
2812         if (!p_tx_switch_tlv)
2813                 return;
2814
2815         p_data->update_tx_switching_flg = 1;
2816         p_data->tx_switching_flg = p_tx_switch_tlv->tx_switching;
2817         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_TX_SWITCH;
2818 }
2819
2820 static void
2821 qed_iov_vp_update_mcast_bin_param(struct qed_hwfn *p_hwfn,
2822                                   struct qed_sp_vport_update_params *p_data,
2823                                   struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2824 {
2825         struct vfpf_vport_update_mcast_bin_tlv *p_mcast_tlv;
2826         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_MCAST;
2827
2828         p_mcast_tlv = (struct vfpf_vport_update_mcast_bin_tlv *)
2829             qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2830         if (!p_mcast_tlv)
2831                 return;
2832
2833         p_data->update_approx_mcast_flg = 1;
2834         memcpy(p_data->bins, p_mcast_tlv->bins,
2835                sizeof(u32) * ETH_MULTICAST_MAC_BINS_IN_REGS);
2836         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_MCAST;
2837 }
2838
2839 static void
2840 qed_iov_vp_update_accept_flag(struct qed_hwfn *p_hwfn,
2841                               struct qed_sp_vport_update_params *p_data,
2842                               struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2843 {
2844         struct qed_filter_accept_flags *p_flags = &p_data->accept_flags;
2845         struct vfpf_vport_update_accept_param_tlv *p_accept_tlv;
2846         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_ACCEPT_PARAM;
2847
2848         p_accept_tlv = (struct vfpf_vport_update_accept_param_tlv *)
2849             qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2850         if (!p_accept_tlv)
2851                 return;
2852
2853         p_flags->update_rx_mode_config = p_accept_tlv->update_rx_mode;
2854         p_flags->rx_accept_filter = p_accept_tlv->rx_accept_filter;
2855         p_flags->update_tx_mode_config = p_accept_tlv->update_tx_mode;
2856         p_flags->tx_accept_filter = p_accept_tlv->tx_accept_filter;
2857         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_ACCEPT_PARAM;
2858 }
2859
2860 static void
2861 qed_iov_vp_update_accept_any_vlan(struct qed_hwfn *p_hwfn,
2862                                   struct qed_sp_vport_update_params *p_data,
2863                                   struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2864 {
2865         struct vfpf_vport_update_accept_any_vlan_tlv *p_accept_any_vlan;
2866         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_ACCEPT_ANY_VLAN;
2867
2868         p_accept_any_vlan = (struct vfpf_vport_update_accept_any_vlan_tlv *)
2869                             qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt,
2870                                                      tlv);
2871         if (!p_accept_any_vlan)
2872                 return;
2873
2874         p_data->accept_any_vlan = p_accept_any_vlan->accept_any_vlan;
2875         p_data->update_accept_any_vlan_flg =
2876                     p_accept_any_vlan->update_accept_any_vlan_flg;
2877         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_ACCEPT_ANY_VLAN;
2878 }
2879
2880 static void
2881 qed_iov_vp_update_rss_param(struct qed_hwfn *p_hwfn,
2882                             struct qed_vf_info *vf,
2883                             struct qed_sp_vport_update_params *p_data,
2884                             struct qed_rss_params *p_rss,
2885                             struct qed_iov_vf_mbx *p_mbx,
2886                             u16 *tlvs_mask, u16 *tlvs_accepted)
2887 {
2888         struct vfpf_vport_update_rss_tlv *p_rss_tlv;
2889         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_RSS;
2890         bool b_reject = false;
2891         u16 table_size;
2892         u16 i, q_idx;
2893
2894         p_rss_tlv = (struct vfpf_vport_update_rss_tlv *)
2895                     qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2896         if (!p_rss_tlv) {
2897                 p_data->rss_params = NULL;
2898                 return;
2899         }
2900
2901         memset(p_rss, 0, sizeof(struct qed_rss_params));
2902
2903         p_rss->update_rss_config = !!(p_rss_tlv->update_rss_flags &
2904                                       VFPF_UPDATE_RSS_CONFIG_FLAG);
2905         p_rss->update_rss_capabilities = !!(p_rss_tlv->update_rss_flags &
2906                                             VFPF_UPDATE_RSS_CAPS_FLAG);
2907         p_rss->update_rss_ind_table = !!(p_rss_tlv->update_rss_flags &
2908                                          VFPF_UPDATE_RSS_IND_TABLE_FLAG);
2909         p_rss->update_rss_key = !!(p_rss_tlv->update_rss_flags &
2910                                    VFPF_UPDATE_RSS_KEY_FLAG);
2911
2912         p_rss->rss_enable = p_rss_tlv->rss_enable;
2913         p_rss->rss_eng_id = vf->relative_vf_id + 1;
2914         p_rss->rss_caps = p_rss_tlv->rss_caps;
2915         p_rss->rss_table_size_log = p_rss_tlv->rss_table_size_log;
2916         memcpy(p_rss->rss_key, p_rss_tlv->rss_key, sizeof(p_rss->rss_key));
2917
2918         table_size = min_t(u16, ARRAY_SIZE(p_rss->rss_ind_table),
2919                            (1 << p_rss_tlv->rss_table_size_log));
2920
2921         for (i = 0; i < table_size; i++) {
2922                 struct qed_queue_cid *p_cid;
2923
2924                 q_idx = p_rss_tlv->rss_ind_table[i];
2925                 if (!qed_iov_validate_rxq(p_hwfn, vf, q_idx,
2926                                           QED_IOV_VALIDATE_Q_ENABLE)) {
2927                         DP_VERBOSE(p_hwfn,
2928                                    QED_MSG_IOV,
2929                                    "VF[%d]: Omitting RSS due to wrong queue %04x\n",
2930                                    vf->relative_vf_id, q_idx);
2931                         b_reject = true;
2932                         goto out;
2933                 }
2934
2935                 p_cid = qed_iov_get_vf_rx_queue_cid(&vf->vf_queues[q_idx]);
2936                 p_rss->rss_ind_table[i] = p_cid;
2937         }
2938
2939         p_data->rss_params = p_rss;
2940 out:
2941         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_RSS;