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
1973         /* Non trusted VFs should enable control frame filtering */
1974         params.check_mac = !vf->p_vf_info.is_trusted_configured;
1975
1976         rc = qed_sp_eth_vport_start(p_hwfn, &params);
1977         if (rc) {
1978                 DP_ERR(p_hwfn,
1979                        "qed_iov_vf_mbx_start_vport returned error %d\n", rc);
1980                 status = PFVF_STATUS_FAILURE;
1981         } else {
1982                 vf->vport_instance++;
1983
1984                 /* Force configuration if needed on the newly opened vport */
1985                 qed_iov_configure_vport_forced(p_hwfn, vf, *p_bitmap);
1986
1987                 __qed_iov_spoofchk_set(p_hwfn, vf, vf->req_spoofchk_val);
1988         }
1989         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_VPORT_START,
1990                              sizeof(struct pfvf_def_resp_tlv), status);
1991 }
1992
1993 static void qed_iov_vf_mbx_stop_vport(struct qed_hwfn *p_hwfn,
1994                                       struct qed_ptt *p_ptt,
1995                                       struct qed_vf_info *vf)
1996 {
1997         u8 status = PFVF_STATUS_SUCCESS;
1998         int rc;
1999
2000         vf->vport_instance--;
2001         vf->spoof_chk = false;
2002
2003         if ((qed_iov_validate_active_rxq(p_hwfn, vf)) ||
2004             (qed_iov_validate_active_txq(p_hwfn, vf))) {
2005                 vf->b_malicious = true;
2006                 DP_NOTICE(p_hwfn,
2007                           "VF [%02x] - considered malicious; Unable to stop RX/TX queuess\n",
2008                           vf->abs_vf_id);
2009                 status = PFVF_STATUS_MALICIOUS;
2010                 goto out;
2011         }
2012
2013         rc = qed_sp_vport_stop(p_hwfn, vf->opaque_fid, vf->vport_id);
2014         if (rc) {
2015                 DP_ERR(p_hwfn, "qed_iov_vf_mbx_stop_vport returned error %d\n",
2016                        rc);
2017                 status = PFVF_STATUS_FAILURE;
2018         }
2019
2020         /* Forget the configuration on the vport */
2021         vf->configured_features = 0;
2022         memset(&vf->shadow_config, 0, sizeof(vf->shadow_config));
2023
2024 out:
2025         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_VPORT_TEARDOWN,
2026                              sizeof(struct pfvf_def_resp_tlv), status);
2027 }
2028
2029 static void qed_iov_vf_mbx_start_rxq_resp(struct qed_hwfn *p_hwfn,
2030                                           struct qed_ptt *p_ptt,
2031                                           struct qed_vf_info *vf,
2032                                           u8 status, bool b_legacy)
2033 {
2034         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2035         struct pfvf_start_queue_resp_tlv *p_tlv;
2036         struct vfpf_start_rxq_tlv *req;
2037         u16 length;
2038
2039         mbx->offset = (u8 *)mbx->reply_virt;
2040
2041         /* Taking a bigger struct instead of adding a TLV to list was a
2042          * mistake, but one which we're now stuck with, as some older
2043          * clients assume the size of the previous response.
2044          */
2045         if (!b_legacy)
2046                 length = sizeof(*p_tlv);
2047         else
2048                 length = sizeof(struct pfvf_def_resp_tlv);
2049
2050         p_tlv = qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_START_RXQ,
2051                             length);
2052         qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
2053                     sizeof(struct channel_list_end_tlv));
2054
2055         /* Update the TLV with the response */
2056         if ((status == PFVF_STATUS_SUCCESS) && !b_legacy) {
2057                 req = &mbx->req_virt->start_rxq;
2058                 p_tlv->offset = PXP_VF_BAR0_START_MSDM_ZONE_B +
2059                                 offsetof(struct mstorm_vf_zone,
2060                                          non_trigger.eth_rx_queue_producers) +
2061                                 sizeof(struct eth_rx_prod_data) * req->rx_qid;
2062         }
2063
2064         qed_iov_send_response(p_hwfn, p_ptt, vf, length, status);
2065 }
2066
2067 static u8 qed_iov_vf_mbx_qid(struct qed_hwfn *p_hwfn,
2068                              struct qed_vf_info *p_vf, bool b_is_tx)
2069 {
2070         struct qed_iov_vf_mbx *p_mbx = &p_vf->vf_mbx;
2071         struct vfpf_qid_tlv *p_qid_tlv;
2072
2073         /* Search for the qid if the VF published its going to provide it */
2074         if (!(p_vf->acquire.vfdev_info.capabilities &
2075               VFPF_ACQUIRE_CAP_QUEUE_QIDS)) {
2076                 if (b_is_tx)
2077                         return QED_IOV_LEGACY_QID_TX;
2078                 else
2079                         return QED_IOV_LEGACY_QID_RX;
2080         }
2081
2082         p_qid_tlv = (struct vfpf_qid_tlv *)
2083                     qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt,
2084                                              CHANNEL_TLV_QID);
2085         if (!p_qid_tlv) {
2086                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2087                            "VF[%2x]: Failed to provide qid\n",
2088                            p_vf->relative_vf_id);
2089
2090                 return QED_IOV_QID_INVALID;
2091         }
2092
2093         if (p_qid_tlv->qid >= MAX_QUEUES_PER_QZONE) {
2094                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2095                            "VF[%02x]: Provided qid out-of-bounds %02x\n",
2096                            p_vf->relative_vf_id, p_qid_tlv->qid);
2097                 return QED_IOV_QID_INVALID;
2098         }
2099
2100         return p_qid_tlv->qid;
2101 }
2102
2103 static void qed_iov_vf_mbx_start_rxq(struct qed_hwfn *p_hwfn,
2104                                      struct qed_ptt *p_ptt,
2105                                      struct qed_vf_info *vf)
2106 {
2107         struct qed_queue_start_common_params params;
2108         struct qed_queue_cid_vf_params vf_params;
2109         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2110         u8 status = PFVF_STATUS_NO_RESOURCE;
2111         u8 qid_usage_idx, vf_legacy = 0;
2112         struct vfpf_start_rxq_tlv *req;
2113         struct qed_vf_queue *p_queue;
2114         struct qed_queue_cid *p_cid;
2115         struct qed_sb_info sb_dummy;
2116         int rc;
2117
2118         req = &mbx->req_virt->start_rxq;
2119
2120         if (!qed_iov_validate_rxq(p_hwfn, vf, req->rx_qid,
2121                                   QED_IOV_VALIDATE_Q_DISABLE) ||
2122             !qed_iov_validate_sb(p_hwfn, vf, req->hw_sb))
2123                 goto out;
2124
2125         qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, false);
2126         if (qid_usage_idx == QED_IOV_QID_INVALID)
2127                 goto out;
2128
2129         p_queue = &vf->vf_queues[req->rx_qid];
2130         if (p_queue->cids[qid_usage_idx].p_cid)
2131                 goto out;
2132
2133         vf_legacy = qed_vf_calculate_legacy(vf);
2134
2135         /* Acquire a new queue-cid */
2136         memset(&params, 0, sizeof(params));
2137         params.queue_id = p_queue->fw_rx_qid;
2138         params.vport_id = vf->vport_id;
2139         params.stats_id = vf->abs_vf_id + 0x10;
2140         /* Since IGU index is passed via sb_info, construct a dummy one */
2141         memset(&sb_dummy, 0, sizeof(sb_dummy));
2142         sb_dummy.igu_sb_id = req->hw_sb;
2143         params.p_sb = &sb_dummy;
2144         params.sb_idx = req->sb_index;
2145
2146         memset(&vf_params, 0, sizeof(vf_params));
2147         vf_params.vfid = vf->relative_vf_id;
2148         vf_params.vf_qid = (u8)req->rx_qid;
2149         vf_params.vf_legacy = vf_legacy;
2150         vf_params.qid_usage_idx = qid_usage_idx;
2151         p_cid = qed_eth_queue_to_cid(p_hwfn, vf->opaque_fid,
2152                                      &params, true, &vf_params);
2153         if (!p_cid)
2154                 goto out;
2155
2156         /* Legacy VFs have their Producers in a different location, which they
2157          * calculate on their own and clean the producer prior to this.
2158          */
2159         if (!(vf_legacy & QED_QCID_LEGACY_VF_RX_PROD))
2160                 REG_WR(p_hwfn,
2161                        GTT_BAR0_MAP_REG_MSDM_RAM +
2162                        MSTORM_ETH_VF_PRODS_OFFSET(vf->abs_vf_id, req->rx_qid),
2163                        0);
2164
2165         rc = qed_eth_rxq_start_ramrod(p_hwfn, p_cid,
2166                                       req->bd_max_bytes,
2167                                       req->rxq_addr,
2168                                       req->cqe_pbl_addr, req->cqe_pbl_size);
2169         if (rc) {
2170                 status = PFVF_STATUS_FAILURE;
2171                 qed_eth_queue_cid_release(p_hwfn, p_cid);
2172         } else {
2173                 p_queue->cids[qid_usage_idx].p_cid = p_cid;
2174                 p_queue->cids[qid_usage_idx].b_is_tx = false;
2175                 status = PFVF_STATUS_SUCCESS;
2176                 vf->num_active_rxqs++;
2177         }
2178
2179 out:
2180         qed_iov_vf_mbx_start_rxq_resp(p_hwfn, p_ptt, vf, status,
2181                                       !!(vf_legacy &
2182                                          QED_QCID_LEGACY_VF_RX_PROD));
2183 }
2184
2185 static void
2186 qed_iov_pf_update_tun_response(struct pfvf_update_tunn_param_tlv *p_resp,
2187                                struct qed_tunnel_info *p_tun,
2188                                u16 tunn_feature_mask)
2189 {
2190         p_resp->tunn_feature_mask = tunn_feature_mask;
2191         p_resp->vxlan_mode = p_tun->vxlan.b_mode_enabled;
2192         p_resp->l2geneve_mode = p_tun->l2_geneve.b_mode_enabled;
2193         p_resp->ipgeneve_mode = p_tun->ip_geneve.b_mode_enabled;
2194         p_resp->l2gre_mode = p_tun->l2_gre.b_mode_enabled;
2195         p_resp->ipgre_mode = p_tun->l2_gre.b_mode_enabled;
2196         p_resp->vxlan_clss = p_tun->vxlan.tun_cls;
2197         p_resp->l2gre_clss = p_tun->l2_gre.tun_cls;
2198         p_resp->ipgre_clss = p_tun->ip_gre.tun_cls;
2199         p_resp->l2geneve_clss = p_tun->l2_geneve.tun_cls;
2200         p_resp->ipgeneve_clss = p_tun->ip_geneve.tun_cls;
2201         p_resp->geneve_udp_port = p_tun->geneve_port.port;
2202         p_resp->vxlan_udp_port = p_tun->vxlan_port.port;
2203 }
2204
2205 static void
2206 __qed_iov_pf_update_tun_param(struct vfpf_update_tunn_param_tlv *p_req,
2207                               struct qed_tunn_update_type *p_tun,
2208                               enum qed_tunn_mode mask, u8 tun_cls)
2209 {
2210         if (p_req->tun_mode_update_mask & BIT(mask)) {
2211                 p_tun->b_update_mode = true;
2212
2213                 if (p_req->tunn_mode & BIT(mask))
2214                         p_tun->b_mode_enabled = true;
2215         }
2216
2217         p_tun->tun_cls = tun_cls;
2218 }
2219
2220 static void
2221 qed_iov_pf_update_tun_param(struct vfpf_update_tunn_param_tlv *p_req,
2222                             struct qed_tunn_update_type *p_tun,
2223                             struct qed_tunn_update_udp_port *p_port,
2224                             enum qed_tunn_mode mask,
2225                             u8 tun_cls, u8 update_port, u16 port)
2226 {
2227         if (update_port) {
2228                 p_port->b_update_port = true;
2229                 p_port->port = port;
2230         }
2231
2232         __qed_iov_pf_update_tun_param(p_req, p_tun, mask, tun_cls);
2233 }
2234
2235 static bool
2236 qed_iov_pf_validate_tunn_param(struct vfpf_update_tunn_param_tlv *p_req)
2237 {
2238         bool b_update_requested = false;
2239
2240         if (p_req->tun_mode_update_mask || p_req->update_tun_cls ||
2241             p_req->update_geneve_port || p_req->update_vxlan_port)
2242                 b_update_requested = true;
2243
2244         return b_update_requested;
2245 }
2246
2247 static void qed_pf_validate_tunn_mode(struct qed_tunn_update_type *tun, int *rc)
2248 {
2249         if (tun->b_update_mode && !tun->b_mode_enabled) {
2250                 tun->b_update_mode = false;
2251                 *rc = -EINVAL;
2252         }
2253 }
2254
2255 static int
2256 qed_pf_validate_modify_tunn_config(struct qed_hwfn *p_hwfn,
2257                                    u16 *tun_features, bool *update,
2258                                    struct qed_tunnel_info *tun_src)
2259 {
2260         struct qed_eth_cb_ops *ops = p_hwfn->cdev->protocol_ops.eth;
2261         struct qed_tunnel_info *tun = &p_hwfn->cdev->tunnel;
2262         u16 bultn_vxlan_port, bultn_geneve_port;
2263         void *cookie = p_hwfn->cdev->ops_cookie;
2264         int i, rc = 0;
2265
2266         *tun_features = p_hwfn->cdev->tunn_feature_mask;
2267         bultn_vxlan_port = tun->vxlan_port.port;
2268         bultn_geneve_port = tun->geneve_port.port;
2269         qed_pf_validate_tunn_mode(&tun_src->vxlan, &rc);
2270         qed_pf_validate_tunn_mode(&tun_src->l2_geneve, &rc);
2271         qed_pf_validate_tunn_mode(&tun_src->ip_geneve, &rc);
2272         qed_pf_validate_tunn_mode(&tun_src->l2_gre, &rc);
2273         qed_pf_validate_tunn_mode(&tun_src->ip_gre, &rc);
2274
2275         if ((tun_src->b_update_rx_cls || tun_src->b_update_tx_cls) &&
2276             (tun_src->vxlan.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
2277              tun_src->l2_geneve.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
2278              tun_src->ip_geneve.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
2279              tun_src->l2_gre.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
2280              tun_src->ip_gre.tun_cls != QED_TUNN_CLSS_MAC_VLAN)) {
2281                 tun_src->b_update_rx_cls = false;
2282                 tun_src->b_update_tx_cls = false;
2283                 rc = -EINVAL;
2284         }
2285
2286         if (tun_src->vxlan_port.b_update_port) {
2287                 if (tun_src->vxlan_port.port == tun->vxlan_port.port) {
2288                         tun_src->vxlan_port.b_update_port = false;
2289                 } else {
2290                         *update = true;
2291                         bultn_vxlan_port = tun_src->vxlan_port.port;
2292                 }
2293         }
2294
2295         if (tun_src->geneve_port.b_update_port) {
2296                 if (tun_src->geneve_port.port == tun->geneve_port.port) {
2297                         tun_src->geneve_port.b_update_port = false;
2298                 } else {
2299                         *update = true;
2300                         bultn_geneve_port = tun_src->geneve_port.port;
2301                 }
2302         }
2303
2304         qed_for_each_vf(p_hwfn, i) {
2305                 qed_iov_bulletin_set_udp_ports(p_hwfn, i, bultn_vxlan_port,
2306                                                bultn_geneve_port);
2307         }
2308
2309         qed_schedule_iov(p_hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
2310         ops->ports_update(cookie, bultn_vxlan_port, bultn_geneve_port);
2311
2312         return rc;
2313 }
2314
2315 static void qed_iov_vf_mbx_update_tunn_param(struct qed_hwfn *p_hwfn,
2316                                              struct qed_ptt *p_ptt,
2317                                              struct qed_vf_info *p_vf)
2318 {
2319         struct qed_tunnel_info *p_tun = &p_hwfn->cdev->tunnel;
2320         struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
2321         struct pfvf_update_tunn_param_tlv *p_resp;
2322         struct vfpf_update_tunn_param_tlv *p_req;
2323         u8 status = PFVF_STATUS_SUCCESS;
2324         bool b_update_required = false;
2325         struct qed_tunnel_info tunn;
2326         u16 tunn_feature_mask = 0;
2327         int i, rc = 0;
2328
2329         mbx->offset = (u8 *)mbx->reply_virt;
2330
2331         memset(&tunn, 0, sizeof(tunn));
2332         p_req = &mbx->req_virt->tunn_param_update;
2333
2334         if (!qed_iov_pf_validate_tunn_param(p_req)) {
2335                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2336                            "No tunnel update requested by VF\n");
2337                 status = PFVF_STATUS_FAILURE;
2338                 goto send_resp;
2339         }
2340
2341         tunn.b_update_rx_cls = p_req->update_tun_cls;
2342         tunn.b_update_tx_cls = p_req->update_tun_cls;
2343
2344         qed_iov_pf_update_tun_param(p_req, &tunn.vxlan, &tunn.vxlan_port,
2345                                     QED_MODE_VXLAN_TUNN, p_req->vxlan_clss,
2346                                     p_req->update_vxlan_port,
2347                                     p_req->vxlan_port);
2348         qed_iov_pf_update_tun_param(p_req, &tunn.l2_geneve, &tunn.geneve_port,
2349                                     QED_MODE_L2GENEVE_TUNN,
2350                                     p_req->l2geneve_clss,
2351                                     p_req->update_geneve_port,
2352                                     p_req->geneve_port);
2353         __qed_iov_pf_update_tun_param(p_req, &tunn.ip_geneve,
2354                                       QED_MODE_IPGENEVE_TUNN,
2355                                       p_req->ipgeneve_clss);
2356         __qed_iov_pf_update_tun_param(p_req, &tunn.l2_gre,
2357                                       QED_MODE_L2GRE_TUNN, p_req->l2gre_clss);
2358         __qed_iov_pf_update_tun_param(p_req, &tunn.ip_gre,
2359                                       QED_MODE_IPGRE_TUNN, p_req->ipgre_clss);
2360
2361         /* If PF modifies VF's req then it should
2362          * still return an error in case of partial configuration
2363          * or modified configuration as opposed to requested one.
2364          */
2365         rc = qed_pf_validate_modify_tunn_config(p_hwfn, &tunn_feature_mask,
2366                                                 &b_update_required, &tunn);
2367
2368         if (rc)
2369                 status = PFVF_STATUS_FAILURE;
2370
2371         /* If QED client is willing to update anything ? */
2372         if (b_update_required) {
2373                 u16 geneve_port;
2374
2375                 rc = qed_sp_pf_update_tunn_cfg(p_hwfn, p_ptt, &tunn,
2376                                                QED_SPQ_MODE_EBLOCK, NULL);
2377                 if (rc)
2378                         status = PFVF_STATUS_FAILURE;
2379
2380                 geneve_port = p_tun->geneve_port.port;
2381                 qed_for_each_vf(p_hwfn, i) {
2382                         qed_iov_bulletin_set_udp_ports(p_hwfn, i,
2383                                                        p_tun->vxlan_port.port,
2384                                                        geneve_port);
2385                 }
2386         }
2387
2388 send_resp:
2389         p_resp = qed_add_tlv(p_hwfn, &mbx->offset,
2390                              CHANNEL_TLV_UPDATE_TUNN_PARAM, sizeof(*p_resp));
2391
2392         qed_iov_pf_update_tun_response(p_resp, p_tun, tunn_feature_mask);
2393         qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
2394                     sizeof(struct channel_list_end_tlv));
2395
2396         qed_iov_send_response(p_hwfn, p_ptt, p_vf, sizeof(*p_resp), status);
2397 }
2398
2399 static void qed_iov_vf_mbx_start_txq_resp(struct qed_hwfn *p_hwfn,
2400                                           struct qed_ptt *p_ptt,
2401                                           struct qed_vf_info *p_vf,
2402                                           u32 cid, u8 status)
2403 {
2404         struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
2405         struct pfvf_start_queue_resp_tlv *p_tlv;
2406         bool b_legacy = false;
2407         u16 length;
2408
2409         mbx->offset = (u8 *)mbx->reply_virt;
2410
2411         /* Taking a bigger struct instead of adding a TLV to list was a
2412          * mistake, but one which we're now stuck with, as some older
2413          * clients assume the size of the previous response.
2414          */
2415         if (p_vf->acquire.vfdev_info.eth_fp_hsi_minor ==
2416             ETH_HSI_VER_NO_PKT_LEN_TUNN)
2417                 b_legacy = true;
2418
2419         if (!b_legacy)
2420                 length = sizeof(*p_tlv);
2421         else
2422                 length = sizeof(struct pfvf_def_resp_tlv);
2423
2424         p_tlv = qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_START_TXQ,
2425                             length);
2426         qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
2427                     sizeof(struct channel_list_end_tlv));
2428
2429         /* Update the TLV with the response */
2430         if ((status == PFVF_STATUS_SUCCESS) && !b_legacy)
2431                 p_tlv->offset = qed_db_addr_vf(cid, DQ_DEMS_LEGACY);
2432
2433         qed_iov_send_response(p_hwfn, p_ptt, p_vf, length, status);
2434 }
2435
2436 static void qed_iov_vf_mbx_start_txq(struct qed_hwfn *p_hwfn,
2437                                      struct qed_ptt *p_ptt,
2438                                      struct qed_vf_info *vf)
2439 {
2440         struct qed_queue_start_common_params params;
2441         struct qed_queue_cid_vf_params vf_params;
2442         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2443         u8 status = PFVF_STATUS_NO_RESOURCE;
2444         struct vfpf_start_txq_tlv *req;
2445         struct qed_vf_queue *p_queue;
2446         struct qed_queue_cid *p_cid;
2447         struct qed_sb_info sb_dummy;
2448         u8 qid_usage_idx, vf_legacy;
2449         u32 cid = 0;
2450         int rc;
2451         u16 pq;
2452
2453         memset(&params, 0, sizeof(params));
2454         req = &mbx->req_virt->start_txq;
2455
2456         if (!qed_iov_validate_txq(p_hwfn, vf, req->tx_qid,
2457                                   QED_IOV_VALIDATE_Q_NA) ||
2458             !qed_iov_validate_sb(p_hwfn, vf, req->hw_sb))
2459                 goto out;
2460
2461         qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, true);
2462         if (qid_usage_idx == QED_IOV_QID_INVALID)
2463                 goto out;
2464
2465         p_queue = &vf->vf_queues[req->tx_qid];
2466         if (p_queue->cids[qid_usage_idx].p_cid)
2467                 goto out;
2468
2469         vf_legacy = qed_vf_calculate_legacy(vf);
2470
2471         /* Acquire a new queue-cid */
2472         params.queue_id = p_queue->fw_tx_qid;
2473         params.vport_id = vf->vport_id;
2474         params.stats_id = vf->abs_vf_id + 0x10;
2475
2476         /* Since IGU index is passed via sb_info, construct a dummy one */
2477         memset(&sb_dummy, 0, sizeof(sb_dummy));
2478         sb_dummy.igu_sb_id = req->hw_sb;
2479         params.p_sb = &sb_dummy;
2480         params.sb_idx = req->sb_index;
2481
2482         memset(&vf_params, 0, sizeof(vf_params));
2483         vf_params.vfid = vf->relative_vf_id;
2484         vf_params.vf_qid = (u8)req->tx_qid;
2485         vf_params.vf_legacy = vf_legacy;
2486         vf_params.qid_usage_idx = qid_usage_idx;
2487
2488         p_cid = qed_eth_queue_to_cid(p_hwfn, vf->opaque_fid,
2489                                      &params, false, &vf_params);
2490         if (!p_cid)
2491                 goto out;
2492
2493         pq = qed_get_cm_pq_idx_vf(p_hwfn, vf->relative_vf_id);
2494         rc = qed_eth_txq_start_ramrod(p_hwfn, p_cid,
2495                                       req->pbl_addr, req->pbl_size, pq);
2496         if (rc) {
2497                 status = PFVF_STATUS_FAILURE;
2498                 qed_eth_queue_cid_release(p_hwfn, p_cid);
2499         } else {
2500                 status = PFVF_STATUS_SUCCESS;
2501                 p_queue->cids[qid_usage_idx].p_cid = p_cid;
2502                 p_queue->cids[qid_usage_idx].b_is_tx = true;
2503                 cid = p_cid->cid;
2504         }
2505
2506 out:
2507         qed_iov_vf_mbx_start_txq_resp(p_hwfn, p_ptt, vf, cid, status);
2508 }
2509
2510 static int qed_iov_vf_stop_rxqs(struct qed_hwfn *p_hwfn,
2511                                 struct qed_vf_info *vf,
2512                                 u16 rxq_id,
2513                                 u8 qid_usage_idx, bool cqe_completion)
2514 {
2515         struct qed_vf_queue *p_queue;
2516         int rc = 0;
2517
2518         if (!qed_iov_validate_rxq(p_hwfn, vf, rxq_id, QED_IOV_VALIDATE_Q_NA)) {
2519                 DP_VERBOSE(p_hwfn,
2520                            QED_MSG_IOV,
2521                            "VF[%d] Tried Closing Rx 0x%04x.%02x which is inactive\n",
2522                            vf->relative_vf_id, rxq_id, qid_usage_idx);
2523                 return -EINVAL;
2524         }
2525
2526         p_queue = &vf->vf_queues[rxq_id];
2527
2528         /* We've validated the index and the existence of the active RXQ -
2529          * now we need to make sure that it's using the correct qid.
2530          */
2531         if (!p_queue->cids[qid_usage_idx].p_cid ||
2532             p_queue->cids[qid_usage_idx].b_is_tx) {
2533                 struct qed_queue_cid *p_cid;
2534
2535                 p_cid = qed_iov_get_vf_rx_queue_cid(p_queue);
2536                 DP_VERBOSE(p_hwfn,
2537                            QED_MSG_IOV,
2538                            "VF[%d] - Tried Closing Rx 0x%04x.%02x, but Rx is at %04x.%02x\n",
2539                            vf->relative_vf_id,
2540                            rxq_id, qid_usage_idx, rxq_id, p_cid->qid_usage_idx);
2541                 return -EINVAL;
2542         }
2543
2544         /* Now that we know we have a valid Rx-queue - close it */
2545         rc = qed_eth_rx_queue_stop(p_hwfn,
2546                                    p_queue->cids[qid_usage_idx].p_cid,
2547                                    false, cqe_completion);
2548         if (rc)
2549                 return rc;
2550
2551         p_queue->cids[qid_usage_idx].p_cid = NULL;
2552         vf->num_active_rxqs--;
2553
2554         return 0;
2555 }
2556
2557 static int qed_iov_vf_stop_txqs(struct qed_hwfn *p_hwfn,
2558                                 struct qed_vf_info *vf,
2559                                 u16 txq_id, u8 qid_usage_idx)
2560 {
2561         struct qed_vf_queue *p_queue;
2562         int rc = 0;
2563
2564         if (!qed_iov_validate_txq(p_hwfn, vf, txq_id, QED_IOV_VALIDATE_Q_NA))
2565                 return -EINVAL;
2566
2567         p_queue = &vf->vf_queues[txq_id];
2568         if (!p_queue->cids[qid_usage_idx].p_cid ||
2569             !p_queue->cids[qid_usage_idx].b_is_tx)
2570                 return -EINVAL;
2571
2572         rc = qed_eth_tx_queue_stop(p_hwfn, p_queue->cids[qid_usage_idx].p_cid);
2573         if (rc)
2574                 return rc;
2575
2576         p_queue->cids[qid_usage_idx].p_cid = NULL;
2577         return 0;
2578 }
2579
2580 static void qed_iov_vf_mbx_stop_rxqs(struct qed_hwfn *p_hwfn,
2581                                      struct qed_ptt *p_ptt,
2582                                      struct qed_vf_info *vf)
2583 {
2584         u16 length = sizeof(struct pfvf_def_resp_tlv);
2585         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2586         u8 status = PFVF_STATUS_FAILURE;
2587         struct vfpf_stop_rxqs_tlv *req;
2588         u8 qid_usage_idx;
2589         int rc;
2590
2591         /* There has never been an official driver that used this interface
2592          * for stopping multiple queues, and it is now considered deprecated.
2593          * Validate this isn't used here.
2594          */
2595         req = &mbx->req_virt->stop_rxqs;
2596         if (req->num_rxqs != 1) {
2597                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2598                            "Odd; VF[%d] tried stopping multiple Rx queues\n",
2599                            vf->relative_vf_id);
2600                 status = PFVF_STATUS_NOT_SUPPORTED;
2601                 goto out;
2602         }
2603
2604         /* Find which qid-index is associated with the queue */
2605         qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, false);
2606         if (qid_usage_idx == QED_IOV_QID_INVALID)
2607                 goto out;
2608
2609         rc = qed_iov_vf_stop_rxqs(p_hwfn, vf, req->rx_qid,
2610                                   qid_usage_idx, req->cqe_completion);
2611         if (!rc)
2612                 status = PFVF_STATUS_SUCCESS;
2613 out:
2614         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_STOP_RXQS,
2615                              length, status);
2616 }
2617
2618 static void qed_iov_vf_mbx_stop_txqs(struct qed_hwfn *p_hwfn,
2619                                      struct qed_ptt *p_ptt,
2620                                      struct qed_vf_info *vf)
2621 {
2622         u16 length = sizeof(struct pfvf_def_resp_tlv);
2623         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2624         u8 status = PFVF_STATUS_FAILURE;
2625         struct vfpf_stop_txqs_tlv *req;
2626         u8 qid_usage_idx;
2627         int rc;
2628
2629         /* There has never been an official driver that used this interface
2630          * for stopping multiple queues, and it is now considered deprecated.
2631          * Validate this isn't used here.
2632          */
2633         req = &mbx->req_virt->stop_txqs;
2634         if (req->num_txqs != 1) {
2635                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2636                            "Odd; VF[%d] tried stopping multiple Tx queues\n",
2637                            vf->relative_vf_id);
2638                 status = PFVF_STATUS_NOT_SUPPORTED;
2639                 goto out;
2640         }
2641
2642         /* Find which qid-index is associated with the queue */
2643         qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, true);
2644         if (qid_usage_idx == QED_IOV_QID_INVALID)
2645                 goto out;
2646
2647         rc = qed_iov_vf_stop_txqs(p_hwfn, vf, req->tx_qid, qid_usage_idx);
2648         if (!rc)
2649                 status = PFVF_STATUS_SUCCESS;
2650
2651 out:
2652         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_STOP_TXQS,
2653                              length, status);
2654 }
2655
2656 static void qed_iov_vf_mbx_update_rxqs(struct qed_hwfn *p_hwfn,
2657                                        struct qed_ptt *p_ptt,
2658                                        struct qed_vf_info *vf)
2659 {
2660         struct qed_queue_cid *handlers[QED_MAX_VF_CHAINS_PER_PF];
2661         u16 length = sizeof(struct pfvf_def_resp_tlv);
2662         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2663         struct vfpf_update_rxq_tlv *req;
2664         u8 status = PFVF_STATUS_FAILURE;
2665         u8 complete_event_flg;
2666         u8 complete_cqe_flg;
2667         u8 qid_usage_idx;
2668         int rc;
2669         u8 i;
2670
2671         req = &mbx->req_virt->update_rxq;
2672         complete_cqe_flg = !!(req->flags & VFPF_RXQ_UPD_COMPLETE_CQE_FLAG);
2673         complete_event_flg = !!(req->flags & VFPF_RXQ_UPD_COMPLETE_EVENT_FLAG);
2674
2675         qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, false);
2676         if (qid_usage_idx == QED_IOV_QID_INVALID)
2677                 goto out;
2678
2679         /* There shouldn't exist a VF that uses queue-qids yet uses this
2680          * API with multiple Rx queues. Validate this.
2681          */
2682         if ((vf->acquire.vfdev_info.capabilities &
2683              VFPF_ACQUIRE_CAP_QUEUE_QIDS) && req->num_rxqs != 1) {
2684                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2685                            "VF[%d] supports QIDs but sends multiple queues\n",
2686                            vf->relative_vf_id);
2687                 goto out;
2688         }
2689
2690         /* Validate inputs - for the legacy case this is still true since
2691          * qid_usage_idx for each Rx queue would be LEGACY_QID_RX.
2692          */
2693         for (i = req->rx_qid; i < req->rx_qid + req->num_rxqs; i++) {
2694                 if (!qed_iov_validate_rxq(p_hwfn, vf, i,
2695                                           QED_IOV_VALIDATE_Q_NA) ||
2696                     !vf->vf_queues[i].cids[qid_usage_idx].p_cid ||
2697                     vf->vf_queues[i].cids[qid_usage_idx].b_is_tx) {
2698                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2699                                    "VF[%d]: Incorrect Rxqs [%04x, %02x]\n",
2700                                    vf->relative_vf_id, req->rx_qid,
2701                                    req->num_rxqs);
2702                         goto out;
2703                 }
2704         }
2705
2706         /* Prepare the handlers */
2707         for (i = 0; i < req->num_rxqs; i++) {
2708                 u16 qid = req->rx_qid + i;
2709
2710                 handlers[i] = vf->vf_queues[qid].cids[qid_usage_idx].p_cid;
2711         }
2712
2713         rc = qed_sp_eth_rx_queues_update(p_hwfn, (void **)&handlers,
2714                                          req->num_rxqs,
2715                                          complete_cqe_flg,
2716                                          complete_event_flg,
2717                                          QED_SPQ_MODE_EBLOCK, NULL);
2718         if (rc)
2719                 goto out;
2720
2721         status = PFVF_STATUS_SUCCESS;
2722 out:
2723         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_UPDATE_RXQ,
2724                              length, status);
2725 }
2726
2727 void *qed_iov_search_list_tlvs(struct qed_hwfn *p_hwfn,
2728                                void *p_tlvs_list, u16 req_type)
2729 {
2730         struct channel_tlv *p_tlv = (struct channel_tlv *)p_tlvs_list;
2731         int len = 0;
2732
2733         do {
2734                 if (!p_tlv->length) {
2735                         DP_NOTICE(p_hwfn, "Zero length TLV found\n");
2736                         return NULL;
2737                 }
2738
2739                 if (p_tlv->type == req_type) {
2740                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2741                                    "Extended tlv type %d, length %d found\n",
2742                                    p_tlv->type, p_tlv->length);
2743                         return p_tlv;
2744                 }
2745
2746                 len += p_tlv->length;
2747                 p_tlv = (struct channel_tlv *)((u8 *)p_tlv + p_tlv->length);
2748
2749                 if ((len + p_tlv->length) > TLV_BUFFER_SIZE) {
2750                         DP_NOTICE(p_hwfn, "TLVs has overrun the buffer size\n");
2751                         return NULL;
2752                 }
2753         } while (p_tlv->type != CHANNEL_TLV_LIST_END);
2754
2755         return NULL;
2756 }
2757
2758 static void
2759 qed_iov_vp_update_act_param(struct qed_hwfn *p_hwfn,
2760                             struct qed_sp_vport_update_params *p_data,
2761                             struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2762 {
2763         struct vfpf_vport_update_activate_tlv *p_act_tlv;
2764         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_ACTIVATE;
2765
2766         p_act_tlv = (struct vfpf_vport_update_activate_tlv *)
2767                     qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2768         if (!p_act_tlv)
2769                 return;
2770
2771         p_data->update_vport_active_rx_flg = p_act_tlv->update_rx;
2772         p_data->vport_active_rx_flg = p_act_tlv->active_rx;
2773         p_data->update_vport_active_tx_flg = p_act_tlv->update_tx;
2774         p_data->vport_active_tx_flg = p_act_tlv->active_tx;
2775         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_ACTIVATE;
2776 }
2777
2778 static void
2779 qed_iov_vp_update_vlan_param(struct qed_hwfn *p_hwfn,
2780                              struct qed_sp_vport_update_params *p_data,
2781                              struct qed_vf_info *p_vf,
2782                              struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2783 {
2784         struct vfpf_vport_update_vlan_strip_tlv *p_vlan_tlv;
2785         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_VLAN_STRIP;
2786
2787         p_vlan_tlv = (struct vfpf_vport_update_vlan_strip_tlv *)
2788                      qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2789         if (!p_vlan_tlv)
2790                 return;
2791
2792         p_vf->shadow_config.inner_vlan_removal = p_vlan_tlv->remove_vlan;
2793
2794         /* Ignore the VF request if we're forcing a vlan */
2795         if (!(p_vf->configured_features & BIT(VLAN_ADDR_FORCED))) {
2796                 p_data->update_inner_vlan_removal_flg = 1;
2797                 p_data->inner_vlan_removal_flg = p_vlan_tlv->remove_vlan;
2798         }
2799
2800         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_VLAN_STRIP;
2801 }
2802
2803 static void
2804 qed_iov_vp_update_tx_switch(struct qed_hwfn *p_hwfn,
2805                             struct qed_sp_vport_update_params *p_data,
2806                             struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2807 {
2808         struct vfpf_vport_update_tx_switch_tlv *p_tx_switch_tlv;
2809         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_TX_SWITCH;
2810
2811         p_tx_switch_tlv = (struct vfpf_vport_update_tx_switch_tlv *)
2812                           qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt,
2813                                                    tlv);
2814         if (!p_tx_switch_tlv)
2815                 return;
2816
2817         p_data->update_tx_switching_flg = 1;
2818         p_data->tx_switching_flg = p_tx_switch_tlv->tx_switching;
2819         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_TX_SWITCH;
2820 }
2821
2822 static void
2823 qed_iov_vp_update_mcast_bin_param(struct qed_hwfn *p_hwfn,
2824                                   struct qed_sp_vport_update_params *p_data,
2825                                   struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2826 {
2827         struct vfpf_vport_update_mcast_bin_tlv *p_mcast_tlv;
2828         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_MCAST;
2829
2830         p_mcast_tlv = (struct vfpf_vport_update_mcast_bin_tlv *)
2831             qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2832         if (!p_mcast_tlv)
2833                 return;
2834
2835         p_data->update_approx_mcast_flg = 1;
2836         memcpy(p_data->bins, p_mcast_tlv->bins,
2837                sizeof(u32) * ETH_MULTICAST_MAC_BINS_IN_REGS);
2838         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_MCAST;
2839 }
2840
2841 static void
2842 qed_iov_vp_update_accept_flag(struct qed_hwfn *p_hwfn,
2843                               struct qed_sp_vport_update_params *p_data,
2844                               struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2845 {
2846         struct qed_filter_accept_flags *p_flags = &p_data->accept_flags;
2847         struct vfpf_vport_update_accept_param_tlv *p_accept_tlv;
2848         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_ACCEPT_PARAM;
2849
2850         p_accept_tlv = (struct vfpf_vport_update_accept_param_tlv *)
2851             qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2852         if (!p_accept_tlv)
2853                 return;
2854
2855         p_flags->update_rx_mode_config = p_accept_tlv->update_rx_mode;
2856         p_flags->rx_accept_filter = p_accept_tlv->rx_accept_filter;
2857         p_flags->update_tx_mode_config = p_accept_tlv->update_tx_mode;
2858         p_flags->tx_accept_filter = p_accept_tlv->tx_accept_filter;
2859         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_ACCEPT_PARAM;
2860 }
2861
2862 static void
2863 qed_iov_vp_update_accept_any_vlan(struct qed_hwfn *p_hwfn,
2864                                   struct qed_sp_vport_update_params *p_data,
2865                                   struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2866 {
2867         struct vfpf_vport_update_accept_any_vlan_tlv *p_accept_any_vlan;
2868         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_ACCEPT_ANY_VLAN;
2869
2870         p_accept_any_vlan = (struct vfpf_vport_update_accept_any_vlan_tlv *)
2871                             qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt,
2872                                                      tlv);
2873         if (!p_accept_any_vlan)
2874                 return;
2875
2876         p_data->accept_any_vlan = p_accept_any_vlan->accept_any_vlan;
2877         p_data->update_accept_any_vlan_flg =
2878                     p_accept_any_vlan->update_accept_any_vlan_flg;
2879         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_ACCEPT_ANY_VLAN;
2880 }
2881
2882 static void
2883 qed_iov_vp_update_rss_param(struct qed_hwfn *p_hwfn,
2884                             struct qed_vf_info *vf,
2885                             struct qed_sp_vport_update_params *p_data,
2886                             struct qed_rss_params *p_rss,
2887                             struct qed_iov_vf_mbx *p_mbx,
2888                             u16 *tlvs_mask, u16 *tlvs_accepted)
2889 {
2890         struct vfpf_vport_update_rss_tlv *p_rss_tlv;
2891         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_RSS;
2892         bool b_reject = false;
2893         u16 table_size;
2894         u16 i, q_idx;
2895
2896         p_rss_tlv = (struct vfpf_vport_update_rss_tlv *)
2897                     qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2898         if (!p_rss_tlv) {
2899                 p_data->rss_params = NULL;
2900                 return;
2901         }
2902
2903         memset(p_rss, 0, sizeof(struct qed_rss_params));
2904
2905         p_rss->update_rss_config = !!(p_rss_tlv->update_rss_flags &
2906                                       VFPF_UPDATE_RSS_CONFIG_FLAG);
2907         p_rss->update_rss_capabilities = !!(p_rss_tlv->update_rss_flags &
2908                                             VFPF_UPDATE_RSS_CAPS_FLAG);
2909         p_rss->update_rss_ind_table = !!(p_rss_tlv->update_rss_flags &
2910                                          VFPF_UPDATE_RSS_IND_TABLE_FLAG);
2911         p_rss->update_rss_key = !!(p_rss_tlv->update_rss_flags &
2912                                    VFPF_UPDATE_RSS_KEY_FLAG);
2913
2914         p_rss->rss_enable = p_rss_tlv->rss_enable;
2915         p_rss->rss_eng_id = vf->relative_vf_id + 1;
2916         p_rss->rss_caps = p_rss_tlv->rss_caps;
2917         p_rss->rss_table_size_log = p_rss_tlv->rss_table_size_log;
2918         memcpy(p_rss->rss_key, p_rss_tlv->rss_key, sizeof(p_rss->rss_key));
2919
2920         table_size = min_t(u16, ARRAY_SIZE(p_rss->rss_ind_table),
2921                            (1 << p_rss_tlv->rss_table_size_log));
2922
2923         for (i = 0; i < table_size; i++) {
2924                 struct qed_queue_cid *p_cid;
2925
2926                 q_idx = p_rss_tlv->rss_ind_table[i];
2927                 if (!qed_iov_validate_rxq(p_hwfn, vf, q_idx,
2928                                           QED_IOV_VALIDATE_Q_ENABLE)) {
2929                         DP_VERBOSE(p_hwfn,
2930                                    QED_MSG_IOV,
2931                                    "VF[%d]: Omitting RSS due to wrong queue %04x\n",
2932                                    vf->relative_vf_id, q_idx);
2933                         b_reject = true;
2934                         goto out;
2935                 }
2936
2937                 p_cid = qed_iov_get_vf_rx_queue_cid(&vf->vf_queues[q_idx]);
2938                 p_rss->rss_ind_table[i] = p_cid;
2939         }
2940
2941         p_data->rss_params = p_rss;
2942 out:
2943         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_RSS;
2944         if (!b_reject)
2945                 *tlvs_accepted |= 1 << QED_IOV_VP_UPDATE_RSS;
2946 }
2947
2948 static void
2949 qed_iov_vp_update_sge_tpa_param(struct qed_hwfn *p_hwfn,
2950                                 struct qed_vf_info *vf,
2951                                 struct qed_sp_vport_update_params *p_data,
2952                                 struct qed_sge_tpa_params *p_sge_tpa,
2953                                 struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2954 {
2955         struct vfpf_vport_update_sge_tpa_tlv *p_sge_tpa_tlv;
2956         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_SGE_TPA;
2957
2958         p_sge_tpa_tlv = (struct vfpf_vport_update_sge_tpa_tlv *)
2959             qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2960
2961         if (!p_sge_tpa_tlv) {
2962                 p_data->sge_tpa_params = NULL;
2963                 return;
2964         }
2965
2966         memset(p_sge_tpa, 0, sizeof(struct qed_sge_tpa_params));
2967
2968         p_sge_tpa->update_tpa_en_flg =
2969             !!(p_sge_tpa_tlv->update_sge_tpa_flags & VFPF_UPDATE_TPA_EN_FLAG);
2970         p_sge_tpa->update_tpa_param_flg =
2971             !!(p_sge_tpa_tlv->update_sge_tpa_flags &
2972                 VFPF_UPDATE_TPA_PARAM_FLAG);
2973
2974         p_sge_tpa->tpa_ipv4_en_flg =
2975             !!(p_sge_tpa_tlv->sge_tpa_flags & VFPF_TPA_IPV4_EN_FLAG);
2976         p_sge_tpa->tpa_ipv6_en_flg =
2977             !!(p_sge_tpa_tlv->sge_tpa_flags & VFPF_TPA_IPV6_EN_FLAG);
2978         p_sge_tpa->tpa_pkt_split_flg =
2979             !!(p_sge_tpa_tlv->sge_tpa_flags & VFPF_TPA_PKT_SPLIT_FLAG);
2980         p_sge_tpa->tpa_hdr_data_split_flg =
2981             !!(p_sge_tpa_tlv->sge_tpa_flags & VFPF_TPA_HDR_DATA_SPLIT_FLAG);
2982         p_sge_tpa->tpa_gro_consistent_flg =
2983             !!(p_sge_tpa_tlv->sge_tpa_flags & VFPF_TPA_GRO_CONSIST_FLAG);
2984
2985         p_sge_tpa->tpa_max_aggs_num = p_sge_tpa_tlv->tpa_max_aggs_num;
2986         p_sge_tpa->tpa_max_size = p_sge_tpa_tlv->tpa_max_size;
2987         p_sge_tpa->tpa_min_size_to_start = p_sge_tpa_tlv->tpa_min_size_to_start;
2988         p_sge_tpa->tpa_min_size_to_cont = p_sge_tpa_tlv->tpa_min_size_to_cont;
2989         p_sge_tpa->max_buffers_per_cqe = p_sge_tpa_tlv->max_buffers_per_cqe;
2990
2991         p_data->sge_tpa_params = p_sge_tpa;
2992
2993         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_SGE_TPA;
2994 }
2995
2996 static int qed_iov_pre_update_vport(struct qed_hwfn *hwfn,
2997                                     u8 vfid,
2998                                     struct qed_sp_vport_update_params *params,
2999                                     u16 *tlvs)
3000 {
3001         u8 mask = QED_ACCEPT_UCAST_UNMATCHED | QED_ACCEPT_MCAST_UNMATCHED;
3002         struct qed_filter_accept_flags *flags = &params->accept_flags;
3003         struct qed_public_vf_info *vf_info;
3004
3005         /* Untrusted VFs can't even be trusted to know that fact.
3006          * Simply indicate everything is configured fine, and trace
3007          * configuration 'behind their back'.
3008          */
3009         if (!(*tlvs & BIT(QED_IOV_VP_UPDATE_ACCEPT_PARAM)))
3010                 return 0;
3011
3012         vf_info = qed_iov_get_public_vf_info(hwfn, vfid, true);
3013
3014         if (flags->update_rx_mode_config) {
3015                 vf_info->rx_accept_mode = flags->rx_accept_filter;
3016                 if (!vf_info->is_trusted_configured)
3017                         flags->rx_accept_filter &= ~mask;
3018         }
3019
3020         if (flags->update_tx_mode_config) {
3021                 vf_info->tx_accept_mode = flags->tx_accept_filter;
3022                 if (!vf_info->is_trusted_configured)
3023                         flags->tx_accept_filter &= ~mask;
3024         }
3025
3026         return 0;
3027 }
3028
3029 static void qed_iov_vf_mbx_vport_update(struct qed_hwfn *p_hwfn,
3030                                         struct qed_ptt *p_ptt,
3031                                         struct qed_vf_info *vf)
3032 {
3033         struct qed_rss_params *p_rss_params = NULL;
3034         struct qed_sp_vport_update_params params;
3035         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
3036         struct qed_sge_tpa_params sge_tpa_params;
3037         u16 tlvs_mask = 0, tlvs_accepted = 0;
3038         u8 status = PFVF_STATUS_SUCCESS;
3039         u16 length;
3040         int rc;
3041
3042         /* Valiate PF can send such a request */
3043         if (!vf->vport_instance) {
3044                 DP_VERBOSE(p_hwfn,
3045                            QED_MSG_IOV,
3046                            "No VPORT instance available for VF[%d], failing vport update\n",
3047                            vf->abs_vf_id);
3048                 status = PFVF_STATUS_FAILURE;
3049                 goto out;
3050         }
3051         p_rss_params = vzalloc(sizeof(*p_rss_params));
3052         if (p_rss_params == NULL) {
3053                 status = PFVF_STATUS_FAILURE;
3054                 goto out;
3055         }
3056
3057         memset(&params, 0, sizeof(params));
3058         params.opaque_fid = vf->opaque_fid;
3059         params.vport_id = vf->vport_id;
3060         params.rss_params = NULL;
3061
3062         /* Search for extended tlvs list and update values
3063          * from VF in struct qed_sp_vport_update_params.
3064          */
3065         qed_iov_vp_update_act_param(p_hwfn, &params, mbx, &tlvs_mask);
3066         qed_iov_vp_update_vlan_param(p_hwfn, &params, vf, mbx, &tlvs_mask);
3067         qed_iov_vp_update_tx_switch(p_hwfn, &params, mbx, &tlvs_mask);
3068         qed_iov_vp_update_mcast_bin_param(p_hwfn, &params, mbx, &tlvs_mask);
3069         qed_iov_vp_update_accept_flag(p_hwfn, &params, mbx, &tlvs_mask);
3070         qed_iov_vp_update_accept_any_vlan(p_hwfn, &params, mbx, &tlvs_mask);
3071         qed_iov_vp_update_sge_tpa_param(p_hwfn, vf, &params,
3072                                         &sge_tpa_params, mbx, &tlvs_mask);
3073
3074         tlvs_accepted = tlvs_mask;
3075
3076         /* Some of the extended TLVs need to be validated first; In that case,
3077          * they can update the mask without updating the accepted [so that
3078          * PF could communicate to VF it has rejected request].
3079          */
3080         qed_iov_vp_update_rss_param(p_hwfn, vf, &params, p_rss_params,
3081                                     mbx, &tlvs_mask, &tlvs_accepted);
3082
3083         if (qed_iov_pre_update_vport(p_hwfn, vf->relative_vf_id,
3084                                      &params, &tlvs_accepted)) {
3085                 tlvs_accepted = 0;
3086                 status = PFVF_STATUS_NOT_SUPPORTED;
3087                 goto out;
3088         }
3089
3090         if (!tlvs_accepted) {
3091                 if (tlvs_mask)
3092                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3093                                    "Upper-layer prevents VF vport configuration\n");
3094                 else
3095                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3096                                    "No feature tlvs found for vport update\n");
3097                 status = PFVF_STATUS_NOT_SUPPORTED;
3098                 goto out;
3099         }
3100
3101         rc = qed_sp_vport_update(p_hwfn, &params, QED_SPQ_MODE_EBLOCK, NULL);
3102
3103         if (rc)
3104                 status = PFVF_STATUS_FAILURE;
3105
3106 out:
3107         vfree(p_rss_params);
3108         length = qed_iov_prep_vp_update_resp_tlvs(p_hwfn, vf, mbx, status,
3109                                                   tlvs_mask, tlvs_accepted);
3110         qed_iov_send_response(p_hwfn, p_ptt, vf, length, status);
3111 }
3112
3113 static int qed_iov_vf_update_vlan_shadow(struct qed_hwfn *p_hwfn,
3114                                          struct qed_vf_info *p_vf,
3115                                          struct qed_filter_ucast *p_params)
3116 {
3117         int i;
3118
3119         /* First remove entries and then add new ones */
3120         if (p_params->opcode == QED_FILTER_REMOVE) {
3121                 for (i = 0; i < QED_ETH_VF_NUM_VLAN_FILTERS + 1; i++)
3122                         if (p_vf->shadow_config.vlans[i].used &&
3123                             p_vf->shadow_config.vlans[i].vid ==
3124                             p_params->vlan) {
3125                                 p_vf->shadow_config.vlans[i].used = false;
3126                                 break;
3127                         }
3128                 if (i == QED_ETH_VF_NUM_VLAN_FILTERS + 1) {
3129                         DP_VERBOSE(p_hwfn,
3130                                    QED_MSG_IOV,
3131                                    "VF [%d] - Tries to remove a non-existing vlan\n",
3132                                    p_vf->relative_vf_id);
3133                         return -EINVAL;
3134                 }
3135         } else if (p_params->opcode == QED_FILTER_REPLACE ||
3136                    p_params->opcode == QED_FILTER_FLUSH) {
3137                 for (i = 0; i < QED_ETH_VF_NUM_VLAN_FILTERS + 1; i++)
3138                         p_vf->shadow_config.vlans[i].used = false;
3139         }
3140
3141         /* In forced mode, we're willing to remove entries - but we don't add
3142          * new ones.
3143          */
3144         if (p_vf->bulletin.p_virt->valid_bitmap & BIT(VLAN_ADDR_FORCED))
3145                 return 0;
3146
3147         if (p_params->opcode == QED_FILTER_ADD ||
3148             p_params->opcode == QED_FILTER_REPLACE) {
3149                 for (i = 0; i < QED_ETH_VF_NUM_VLAN_FILTERS + 1; i++) {
3150                         if (p_vf->shadow_config.vlans[i].used)
3151                                 continue;
3152
3153                         p_vf->shadow_config.vlans[i].used = true;
3154                         p_vf->shadow_config.vlans[i].vid = p_params->vlan;
3155                         break;
3156                 }
3157
3158                 if (i == QED_ETH_VF_NUM_VLAN_FILTERS + 1) {
3159                         DP_VERBOSE(p_hwfn,
3160                                    QED_MSG_IOV,
3161                                    "VF [%d] - Tries to configure more than %d vlan filters\n",
3162                                    p_vf->relative_vf_id,
3163                                    QED_ETH_VF_NUM_VLAN_FILTERS + 1);
3164                         return -EINVAL;
3165                 }
3166         }
3167
3168         return 0;
3169 }
3170
3171 static int qed_iov_vf_update_mac_shadow(struct qed_hwfn *p_hwfn,
3172                                         struct qed_vf_info *p_vf,
3173                                         struct qed_filter_ucast *p_params)
3174 {
3175         int i;
3176
3177         /* If we're in forced-mode, we don't allow any change */
3178         if (p_vf->bulletin.p_virt->valid_bitmap & BIT(MAC_ADDR_FORCED))
3179                 return 0;
3180
3181         /* Don't keep track of shadow copy since we don't intend to restore. */
3182         if (p_vf->p_vf_info.is_trusted_configured)
3183                 return 0;
3184
3185         /* First remove entries and then add new ones */
3186         if (p_params->opcode == QED_FILTER_REMOVE) {
3187                 for (i = 0; i < QED_ETH_VF_NUM_MAC_FILTERS; i++) {
3188                         if (ether_addr_equal(p_vf->shadow_config.macs[i],
3189                                              p_params->mac)) {
3190                                 eth_zero_addr(p_vf->shadow_config.macs[i]);
3191                                 break;
3192                         }
3193                 }
3194
3195                 if (i == QED_ETH_VF_NUM_MAC_FILTERS) {
3196                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3197                                    "MAC isn't configured\n");
3198                         return -EINVAL;
3199                 }
3200         } else if (p_params->opcode == QED_FILTER_REPLACE ||
3201                    p_params->opcode == QED_FILTER_FLUSH) {
3202                 for (i = 0; i < QED_ETH_VF_NUM_MAC_FILTERS; i++)
3203                         eth_zero_addr(p_vf->shadow_config.macs[i]);
3204         }
3205
3206         /* List the new MAC address */
3207         if (p_params->opcode != QED_FILTER_ADD &&
3208             p_params->opcode != QED_FILTER_REPLACE)
3209                 return 0;
3210
3211         for (i = 0; i < QED_ETH_VF_NUM_MAC_FILTERS; i++) {
3212                 if (is_zero_ether_addr(p_vf->shadow_config.macs[i])) {
3213                         ether_addr_copy(p_vf->shadow_config.macs[i],
3214                                         p_params->mac);
3215                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3216                                    "Added MAC at %d entry in shadow\n", i);
3217                         break;
3218                 }
3219         }
3220
3221         if (i == QED_ETH_VF_NUM_MAC_FILTERS) {
3222                 DP_VERBOSE(p_hwfn, QED_MSG_IOV, "No available place for MAC\n");
3223                 return -EINVAL;
3224         }
3225
3226         return 0;
3227 }
3228
3229 static int
3230 qed_iov_vf_update_unicast_shadow(struct qed_hwfn *p_hwfn,
3231                                  struct qed_vf_info *p_vf,
3232                                  struct qed_filter_ucast *p_params)
3233 {
3234         int rc = 0;
3235
3236         if (p_params->type == QED_FILTER_MAC) {
3237                 rc = qed_iov_vf_update_mac_shadow(p_hwfn, p_vf, p_params);
3238                 if (rc)
3239                         return rc;
3240         }
3241
3242         if (p_params->type == QED_FILTER_VLAN)
3243                 rc = qed_iov_vf_update_vlan_shadow(p_hwfn, p_vf, p_params);
3244
3245         return rc;
3246 }
3247
3248 static int qed_iov_chk_ucast(struct qed_hwfn *hwfn,
3249                              int vfid, struct qed_filter_ucast *params)
3250 {
3251         struct qed_public_vf_info *vf;
3252
3253         vf = qed_iov_get_public_vf_info(hwfn, vfid, true);
3254         if (!vf)
3255                 return -EINVAL;
3256
3257         /* No real decision to make; Store the configured MAC */
3258         if (params->type == QED_FILTER_MAC ||
3259             params->type == QED_FILTER_MAC_VLAN) {
3260                 ether_addr_copy(vf->mac, params->mac);
3261
3262                 if (vf->is_trusted_configured) {
3263                         qed_iov_bulletin_set_mac(hwfn, vf->mac, vfid);
3264
3265                         /* Update and post bulleitin again */
3266                         qed_schedule_iov(hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
3267                 }
3268         }
3269
3270         return 0;
3271 }
3272
3273 static void qed_iov_vf_mbx_ucast_filter(struct qed_hwfn *p_hwfn,
3274                                         struct qed_ptt *p_ptt,
3275                                         struct qed_vf_info *vf)
3276 {
3277         struct qed_bulletin_content *p_bulletin = vf->bulletin.p_virt;
3278         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
3279         struct vfpf_ucast_filter_tlv *req;
3280         u8 status = PFVF_STATUS_SUCCESS;
3281         struct qed_filter_ucast params;
3282         int rc;
3283
3284         /* Prepare the unicast filter params */
3285         memset(&params, 0, sizeof(struct qed_filter_ucast));
3286         req = &mbx->req_virt->ucast_filter;
3287         params.opcode = (enum qed_filter_opcode)req->opcode;
3288         params.type = (enum qed_filter_ucast_type)req->type;
3289
3290         params.is_rx_filter = 1;
3291         params.is_tx_filter = 1;
3292         params.vport_to_remove_from = vf->vport_id;
3293         params.vport_to_add_to = vf->vport_id;
3294         memcpy(params.mac, req->mac, ETH_ALEN);
3295         params.vlan = req->vlan;
3296
3297         DP_VERBOSE(p_hwfn,
3298                    QED_MSG_IOV,
3299                    "VF[%d]: opcode 0x%02x type 0x%02x [%s %s] [vport 0x%02x] MAC %02x:%02x:%02x:%02x:%02x:%02x, vlan 0x%04x\n",
3300                    vf->abs_vf_id, params.opcode, params.type,
3301                    params.is_rx_filter ? "RX" : "",
3302                    params.is_tx_filter ? "TX" : "",
3303                    params.vport_to_add_to,
3304                    params.mac[0], params.mac[1],
3305                    params.mac[2], params.mac[3],
3306                    params.mac[4], params.mac[5], params.vlan);
3307
3308         if (!vf->vport_instance) {
3309                 DP_VERBOSE(p_hwfn,
3310                            QED_MSG_IOV,
3311                            "No VPORT instance available for VF[%d], failing ucast MAC configuration\n",
3312                            vf->abs_vf_id);
3313                 status = PFVF_STATUS_FAILURE;
3314                 goto out;
3315         }
3316
3317         /* Update shadow copy of the VF configuration */
3318         if (qed_iov_vf_update_unicast_shadow(p_hwfn, vf, &params)) {
3319                 status = PFVF_STATUS_FAILURE;
3320                 goto out;
3321         }
3322
3323         /* Determine if the unicast filtering is acceptible by PF */
3324         if ((p_bulletin->valid_bitmap & BIT(VLAN_ADDR_FORCED)) &&
3325             (params.type == QED_FILTER_VLAN ||
3326              params.type == QED_FILTER_MAC_VLAN)) {
3327                 /* Once VLAN is forced or PVID is set, do not allow
3328                  * to add/replace any further VLANs.
3329                  */
3330                 if (params.opcode == QED_FILTER_ADD ||
3331                     params.opcode == QED_FILTER_REPLACE)
3332                         status = PFVF_STATUS_FORCED;
3333                 goto out;
3334         }
3335
3336         if ((p_bulletin->valid_bitmap & BIT(MAC_ADDR_FORCED)) &&
3337             (params.type == QED_FILTER_MAC ||
3338              params.type == QED_FILTER_MAC_VLAN)) {
3339                 if (!ether_addr_equal(p_bulletin->mac, params.mac) ||
3340                     (params.opcode != QED_FILTER_ADD &&
3341                      params.opcode != QED_FILTER_REPLACE))
3342                         status = PFVF_STATUS_FORCED;
3343                 goto out;
3344         }
3345
3346         rc = qed_iov_chk_ucast(p_hwfn, vf->relative_vf_id, &params);
3347         if (rc) {
3348                 status = PFVF_STATUS_FAILURE;
3349                 goto out;
3350         }
3351
3352         rc = qed_sp_eth_filter_ucast(p_hwfn, vf->opaque_fid, &params,
3353                                      QED_SPQ_MODE_CB, NULL);
3354         if (rc)
3355                 status = PFVF_STATUS_FAILURE;
3356
3357 out:
3358         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_UCAST_FILTER,
3359                              sizeof(struct pfvf_def_resp_tlv), status);
3360 }
3361
3362 static void qed_iov_vf_mbx_int_cleanup(struct qed_hwfn *p_hwfn,
3363                                        struct qed_ptt *p_ptt,
3364                                        struct qed_vf_info *vf)
3365 {
3366         int i;
3367
3368         /* Reset the SBs */
3369         for (i = 0; i < vf->num_sbs; i++)
3370                 qed_int_igu_init_pure_rt_single(p_hwfn, p_ptt,
3371                                                 vf->igu_sbs[i],
3372                                                 vf->opaque_fid, false);
3373
3374         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_INT_CLEANUP,
3375                              sizeof(struct pfvf_def_resp_tlv),
3376                              PFVF_STATUS_SUCCESS);
3377 }
3378
3379 static void qed_iov_vf_mbx_close(struct qed_hwfn *p_hwfn,
3380                                  struct qed_ptt *p_ptt, struct qed_vf_info *vf)
3381 {
3382         u16 length = sizeof(struct pfvf_def_resp_tlv);
3383         u8 status = PFVF_STATUS_SUCCESS;
3384
3385         /* Disable Interrupts for VF */
3386         qed_iov_vf_igu_set_int(p_hwfn, p_ptt, vf, 0);
3387
3388         /* Reset Permission table */
3389         qed_iov_config_perm_table(p_hwfn, p_ptt, vf, 0);
3390
3391         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_CLOSE,
3392                              length, status);
3393 }
3394
3395 static void qed_iov_vf_mbx_release(struct qed_hwfn *p_hwfn,
3396                                    struct qed_ptt *p_ptt,
3397                                    struct qed_vf_info *p_vf)
3398 {
3399         u16 length = sizeof(struct pfvf_def_resp_tlv);
3400         u8 status = PFVF_STATUS_SUCCESS;
3401         int rc = 0;
3402
3403         qed_iov_vf_cleanup(p_hwfn, p_vf);
3404
3405         if (p_vf->state != VF_STOPPED && p_vf->state != VF_FREE) {
3406                 /* Stopping the VF */
3407                 rc = qed_sp_vf_stop(p_hwfn, p_vf->concrete_fid,
3408                                     p_vf->opaque_fid);
3409
3410                 if (rc) {
3411                         DP_ERR(p_hwfn, "qed_sp_vf_stop returned error %d\n",
3412                                rc);
3413                         status = PFVF_STATUS_FAILURE;
3414                 }
3415
3416                 p_vf->state = VF_STOPPED;
3417         }
3418
3419         qed_iov_prepare_resp(p_hwfn, p_ptt, p_vf, CHANNEL_TLV_RELEASE,
3420                              length, status);
3421 }
3422
3423 static void qed_iov_vf_pf_get_coalesce(struct qed_hwfn *p_hwfn,
3424                                        struct qed_ptt *p_ptt,
3425                                        struct qed_vf_info *p_vf)
3426 {
3427         struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
3428         struct pfvf_read_coal_resp_tlv *p_resp;
3429         struct vfpf_read_coal_req_tlv *req;
3430         u8 status = PFVF_STATUS_FAILURE;
3431         struct qed_vf_queue *p_queue;
3432         struct qed_queue_cid *p_cid;
3433         u16 coal = 0, qid, i;
3434         bool b_is_rx;
3435         int rc = 0;
3436
3437         mbx->offset = (u8 *)mbx->reply_virt;
3438         req = &mbx->req_virt->read_coal_req;
3439
3440         qid = req->qid;
3441         b_is_rx = req->is_rx ? true : false;
3442
3443         if (b_is_rx) {
3444                 if (!qed_iov_validate_rxq(p_hwfn, p_vf, qid,
3445                                           QED_IOV_VALIDATE_Q_ENABLE)) {
3446                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3447                                    "VF[%d]: Invalid Rx queue_id = %d\n",
3448                                    p_vf->abs_vf_id, qid);
3449                         goto send_resp;
3450                 }
3451
3452                 p_cid = qed_iov_get_vf_rx_queue_cid(&p_vf->vf_queues[qid]);
3453                 rc = qed_get_rxq_coalesce(p_hwfn, p_ptt, p_cid, &coal);
3454                 if (rc)
3455                         goto send_resp;
3456         } else {
3457                 if (!qed_iov_validate_txq(p_hwfn, p_vf, qid,
3458                                           QED_IOV_VALIDATE_Q_ENABLE)) {
3459                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3460                                    "VF[%d]: Invalid Tx queue_id = %d\n",
3461                                    p_vf->abs_vf_id, qid);
3462                         goto send_resp;
3463                 }
3464                 for (i = 0; i < MAX_QUEUES_PER_QZONE; i++) {
3465                         p_queue = &p_vf->vf_queues[qid];
3466                         if ((!p_queue->cids[i].p_cid) ||
3467                             (!p_queue->cids[i].b_is_tx))
3468                                 continue;
3469
3470                         p_cid = p_queue->cids[i].p_cid;
3471
3472                         rc = qed_get_txq_coalesce(p_hwfn, p_ptt, p_cid, &coal);
3473                         if (rc)
3474                                 goto send_resp;
3475                         break;
3476                 }
3477         }
3478
3479         status = PFVF_STATUS_SUCCESS;
3480
3481 send_resp:
3482         p_resp = qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_COALESCE_READ,
3483                              sizeof(*p_resp));
3484         p_resp->coal = coal;
3485
3486         qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
3487                     sizeof(struct channel_list_end_tlv));
3488
3489         qed_iov_send_response(p_hwfn, p_ptt, p_vf, sizeof(*p_resp), status);
3490 }
3491
3492 static void qed_iov_vf_pf_set_coalesce(struct qed_hwfn *p_hwfn,
3493                                        struct qed_ptt *p_ptt,
3494                                        struct qed_vf_info *vf)
3495 {
3496         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
3497         struct vfpf_update_coalesce *req;
3498         u8 status = PFVF_STATUS_FAILURE;
3499         struct qed_queue_cid *p_cid;
3500         u16 rx_coal, tx_coal;
3501         int rc = 0, i;
3502         u16 qid;
3503
3504         req = &mbx->req_virt->update_coalesce;
3505
3506         rx_coal = req->rx_coal;
3507         tx_coal = req->tx_coal;
3508         qid = req->qid;
3509
3510         if (!qed_iov_validate_rxq(p_hwfn, vf, qid,
3511                                   QED_IOV_VALIDATE_Q_ENABLE) && rx_coal) {
3512                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3513                            "VF[%d]: Invalid Rx queue_id = %d\n",
3514                            vf->abs_vf_id, qid);
3515                 goto out;
3516         }
3517
3518         if (!qed_iov_validate_txq(p_hwfn, vf, qid,
3519                                   QED_IOV_VALIDATE_Q_ENABLE) && tx_coal) {
3520                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3521                            "VF[%d]: Invalid Tx queue_id = %d\n",
3522                            vf->abs_vf_id, qid);
3523                 goto out;
3524         }
3525
3526         DP_VERBOSE(p_hwfn,
3527                    QED_MSG_IOV,
3528                    "VF[%d]: Setting coalesce for VF rx_coal = %d, tx_coal = %d at queue = %d\n",
3529                    vf->abs_vf_id, rx_coal, tx_coal, qid);
3530
3531         if (rx_coal) {
3532                 p_cid = qed_iov_get_vf_rx_queue_cid(&vf->vf_queues[qid]);
3533
3534                 rc = qed_set_rxq_coalesce(p_hwfn, p_ptt, rx_coal, p_cid);
3535                 if (rc) {
3536                         DP_VERBOSE(p_hwfn,
3537                                    QED_MSG_IOV,
3538                                    "VF[%d]: Unable to set rx queue = %d coalesce\n",
3539                                    vf->abs_vf_id, vf->vf_queues[qid].fw_rx_qid);
3540                         goto out;
3541                 }
3542                 vf->rx_coal = rx_coal;
3543         }
3544
3545         if (tx_coal) {
3546                 struct qed_vf_queue *p_queue = &vf->vf_queues[qid];
3547
3548                 for (i = 0; i < MAX_QUEUES_PER_QZONE; i++) {
3549                         if (!p_queue->cids[i].p_cid)
3550                                 continue;
3551
3552                         if (!p_queue->cids[i].b_is_tx)
3553                                 continue;
3554
3555                         rc = qed_set_txq_coalesce(p_hwfn, p_ptt, tx_coal,
3556                                                   p_queue->cids[i].p_cid);
3557
3558                         if (rc) {
3559                                 DP_VERBOSE(p_hwfn,
3560                                            QED_MSG_IOV,
3561                                            "VF[%d]: Unable to set tx queue coalesce\n",
3562                                            vf->abs_vf_id);
3563                                 goto out;
3564                         }
3565                 }
3566                 vf->tx_coal = tx_coal;
3567         }
3568
3569         status = PFVF_STATUS_SUCCESS;
3570 out:
3571         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_COALESCE_UPDATE,
3572                              sizeof(struct pfvf_def_resp_tlv), status);
3573 }
3574 static int
3575 qed_iov_vf_flr_poll_dorq(struct qed_hwfn *p_hwfn,
3576                          struct qed_vf_info *p_vf, struct qed_ptt *p_ptt)
3577 {
3578         int cnt;
3579         u32 val;
3580
3581         qed_fid_pretend(p_hwfn, p_ptt, (u16) p_vf->concrete_fid);
3582
3583         for (cnt = 0; cnt < 50; cnt++) {
3584                 val = qed_rd(p_hwfn, p_ptt, DORQ_REG_VF_USAGE_CNT);
3585                 if (!val)
3586                         break;
3587                 msleep(20);
3588         }
3589         qed_fid_pretend(p_hwfn, p_ptt, (u16) p_hwfn->hw_info.concrete_fid);
3590
3591         if (cnt == 50) {
3592                 DP_ERR(p_hwfn,
3593                        "VF[%d] - dorq failed to cleanup [usage 0x%08x]\n",
3594                        p_vf->abs_vf_id, val);
3595                 return -EBUSY;
3596         }
3597
3598         return 0;
3599 }
3600
3601 static int
3602 qed_iov_vf_flr_poll_pbf(struct qed_hwfn *p_hwfn,
3603                         struct qed_vf_info *p_vf, struct qed_ptt *p_ptt)
3604 {
3605         u32 cons[MAX_NUM_VOQS_E4], distance[MAX_NUM_VOQS_E4];
3606         int i, cnt;
3607
3608         /* Read initial consumers & producers */
3609         for (i = 0; i < MAX_NUM_VOQS_E4; i++) {
3610                 u32 prod;
3611
3612                 cons[i] = qed_rd(p_hwfn, p_ptt,
3613                                  PBF_REG_NUM_BLOCKS_ALLOCATED_CONS_VOQ0 +
3614                                  i * 0x40);
3615                 prod = qed_rd(p_hwfn, p_ptt,
3616                               PBF_REG_NUM_BLOCKS_ALLOCATED_PROD_VOQ0 +
3617                               i * 0x40);
3618                 distance[i] = prod - cons[i];
3619         }
3620
3621         /* Wait for consumers to pass the producers */
3622         i = 0;
3623         for (cnt = 0; cnt < 50; cnt++) {
3624                 for (; i < MAX_NUM_VOQS_E4; i++) {
3625                         u32 tmp;
3626
3627                         tmp = qed_rd(p_hwfn, p_ptt,
3628                                      PBF_REG_NUM_BLOCKS_ALLOCATED_CONS_VOQ0 +
3629                                      i * 0x40);
3630                         if (distance[i] > tmp - cons[i])
3631                                 break;
3632                 }
3633
3634                 if (i == MAX_NUM_VOQS_E4)
3635                         break;
3636
3637                 msleep(20);
3638         }
3639
3640         if (cnt == 50) {
3641                 DP_ERR(p_hwfn, "VF[%d] - pbf polling failed on VOQ %d\n",
3642                        p_vf->abs_vf_id, i);
3643                 return -EBUSY;
3644         }
3645
3646         return 0;
3647 }
3648
3649 static int qed_iov_vf_flr_poll(struct qed_hwfn *p_hwfn,
3650                                struct qed_vf_info *p_vf, struct qed_ptt *p_ptt)
3651 {
3652         int rc;
3653
3654         rc = qed_iov_vf_flr_poll_dorq(p_hwfn, p_vf, p_ptt);
3655         if (rc)
3656                 return rc;
3657
3658         rc = qed_iov_vf_flr_poll_pbf(p_hwfn, p_vf, p_ptt);
3659         if (rc)
3660                 return rc;
3661
3662         return 0;
3663 }
3664
3665 static int
3666 qed_iov_execute_vf_flr_cleanup(struct qed_hwfn *p_hwfn,
3667                                struct qed_ptt *p_ptt,
3668                                u16 rel_vf_id, u32 *ack_vfs)
3669 {
3670         struct qed_vf_info *p_vf;
3671         int rc = 0;
3672
3673         p_vf = qed_iov_get_vf_info(p_hwfn, rel_vf_id, false);
3674         if (!p_vf)
3675                 return 0;
3676
3677         if (p_hwfn->pf_iov_info->pending_flr[rel_vf_id / 64] &
3678             (1ULL << (rel_vf_id % 64))) {
3679                 u16 vfid = p_vf->abs_vf_id;
3680
3681                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3682                            "VF[%d] - Handling FLR\n", vfid);
3683
3684                 qed_iov_vf_cleanup(p_hwfn, p_vf);
3685
3686                 /* If VF isn't active, no need for anything but SW */
3687                 if (!p_vf->b_init)
3688                         goto cleanup;
3689
3690                 rc = qed_iov_vf_flr_poll(p_hwfn, p_vf, p_ptt);
3691                 if (rc)
3692                         goto cleanup;
3693
3694                 rc = qed_final_cleanup(p_hwfn, p_ptt, vfid, true);
3695                 if (rc) {
3696                         DP_ERR(p_hwfn, "Failed handle FLR of VF[%d]\n", vfid);
3697                         return rc;
3698                 }
3699
3700                 /* Workaround to make VF-PF channel ready, as FW
3701                  * doesn't do that as a part of FLR.
3702                  */
3703                 REG_WR(p_hwfn,
3704                        GTT_BAR0_MAP_REG_USDM_RAM +
3705                        USTORM_VF_PF_CHANNEL_READY_OFFSET(vfid), 1);
3706
3707                 /* VF_STOPPED has to be set only after final cleanup
3708                  * but prior to re-enabling the VF.
3709                  */
3710                 p_vf->state = VF_STOPPED;
3711
3712                 rc = qed_iov_enable_vf_access(p_hwfn, p_ptt, p_vf);
3713                 if (rc) {
3714                         DP_ERR(p_hwfn, "Failed to re-enable VF[%d] acces\n",
3715                                vfid);
3716                         return rc;
3717                 }
3718 cleanup:
3719                 /* Mark VF for ack and clean pending state */
3720                 if (p_vf->state == VF_RESET)
3721                         p_vf->state = VF_STOPPED;
3722                 ack_vfs[vfid / 32] |= BIT((vfid % 32));
3723                 p_hwfn->pf_iov_info->pending_flr[rel_vf_id / 64] &=
3724                     ~(1ULL << (rel_vf_id % 64));
3725                 p_vf->vf_mbx.b_pending_msg = false;
3726         }
3727
3728         return rc;
3729 }
3730
3731 static int
3732 qed_iov_vf_flr_cleanup(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
3733 {
3734         u32 ack_vfs[VF_MAX_STATIC / 32];
3735         int rc = 0;
3736         u16 i;
3737
3738         memset(ack_vfs, 0, sizeof(u32) * (VF_MAX_STATIC / 32));
3739
3740         /* Since BRB <-> PRS interface can't be tested as part of the flr
3741          * polling due to HW limitations, simply sleep a bit. And since
3742          * there's no need to wait per-vf, do it before looping.
3743          */
3744         msleep(100);
3745
3746         for (i = 0; i < p_hwfn->cdev->p_iov_info->total_vfs; i++)
3747                 qed_iov_execute_vf_flr_cleanup(p_hwfn, p_ptt, i, ack_vfs);
3748
3749         rc = qed_mcp_ack_vf_flr(p_hwfn, p_ptt, ack_vfs);
3750         return rc;
3751 }
3752
3753 bool qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn, u32 *p_disabled_vfs)
3754 {
3755         bool found = false;
3756         u16 i;
3757
3758         DP_VERBOSE(p_hwfn, QED_MSG_IOV, "Marking FLR-ed VFs\n");
3759         for (i = 0; i < (VF_MAX_STATIC / 32); i++)
3760                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3761                            "[%08x,...,%08x]: %08x\n",
3762                            i * 32, (i + 1) * 32 - 1, p_disabled_vfs[i]);
3763
3764         if (!p_hwfn->cdev->p_iov_info) {
3765                 DP_NOTICE(p_hwfn, "VF flr but no IOV\n");
3766                 return false;
3767         }
3768
3769         /* Mark VFs */
3770         for (i = 0; i < p_hwfn->cdev->p_iov_info->total_vfs; i++) {
3771                 struct qed_vf_info *p_vf;
3772                 u8 vfid;
3773
3774                 p_vf = qed_iov_get_vf_info(p_hwfn, i, false);
3775                 if (!p_vf)
3776                         continue;
3777
3778                 vfid = p_vf->abs_vf_id;
3779                 if (BIT((vfid % 32)) & p_disabled_vfs[vfid / 32]) {
3780                         u64 *p_flr = p_hwfn->pf_iov_info->pending_flr;
3781                         u16 rel_vf_id = p_vf->relative_vf_id;
3782
3783                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3784                                    "VF[%d] [rel %d] got FLR-ed\n",
3785                                    vfid, rel_vf_id);
3786
3787                         p_vf->state = VF_RESET;
3788
3789                         /* No need to lock here, since pending_flr should
3790                          * only change here and before ACKing MFw. Since
3791                          * MFW will not trigger an additional attention for
3792                          * VF flr until ACKs, we're safe.
3793                          */
3794                         p_flr[rel_vf_id / 64] |= 1ULL << (rel_vf_id % 64);
3795                         found = true;
3796                 }
3797         }
3798
3799         return found;
3800 }
3801
3802 static void qed_iov_get_link(struct qed_hwfn *p_hwfn,
3803                              u16 vfid,
3804                              struct qed_mcp_link_params *p_params,
3805                              struct qed_mcp_link_state *p_link,
3806                              struct qed_mcp_link_capabilities *p_caps)
3807 {
3808         struct qed_vf_info *p_vf = qed_iov_get_vf_info(p_hwfn,
3809                                                        vfid,
3810                                                        false);
3811         struct qed_bulletin_content *p_bulletin;
3812
3813         if (!p_vf)
3814                 return;
3815
3816         p_bulletin = p_vf->bulletin.p_virt;
3817
3818         if (p_params)
3819                 __qed_vf_get_link_params(p_hwfn, p_params, p_bulletin);
3820         if (p_link)
3821                 __qed_vf_get_link_state(p_hwfn, p_link, p_bulletin);
3822         if (p_caps)
3823                 __qed_vf_get_link_caps(p_hwfn, p_caps, p_bulletin);
3824 }
3825
3826 static int
3827 qed_iov_vf_pf_bulletin_update_mac(struct qed_hwfn *p_hwfn,
3828                                   struct qed_ptt *p_ptt,
3829                                   struct qed_vf_info *p_vf)
3830 {
3831         struct qed_bulletin_content *p_bulletin = p_vf->bulletin.p_virt;
3832         struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
3833         struct vfpf_bulletin_update_mac_tlv *p_req;
3834         u8 status = PFVF_STATUS_SUCCESS;
3835         int rc = 0;
3836
3837         if (!p_vf->p_vf_info.is_trusted_configured) {
3838                 DP_VERBOSE(p_hwfn,
3839                            QED_MSG_IOV,
3840                            "Blocking bulletin update request from untrusted VF[%d]\n",
3841                            p_vf->abs_vf_id);
3842                 status = PFVF_STATUS_NOT_SUPPORTED;
3843                 rc = -EINVAL;
3844                 goto send_status;
3845         }
3846
3847         p_req = &mbx->req_virt->bulletin_update_mac;
3848         ether_addr_copy(p_bulletin->mac, p_req->mac);
3849         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3850                    "Updated bulletin of VF[%d] with requested MAC[%pM]\n",
3851                    p_vf->abs_vf_id, p_req->mac);
3852
3853 send_status:
3854         qed_iov_prepare_resp(p_hwfn, p_ptt, p_vf,
3855                              CHANNEL_TLV_BULLETIN_UPDATE_MAC,
3856                              sizeof(struct pfvf_def_resp_tlv), status);
3857         return rc;
3858 }
3859
3860 static void qed_iov_process_mbx_req(struct qed_hwfn *p_hwfn,
3861                                     struct qed_ptt *p_ptt, int vfid)
3862 {
3863         struct qed_iov_vf_mbx *mbx;
3864         struct qed_vf_info *p_vf;
3865
3866         p_vf = qed_iov_get_vf_info(p_hwfn, (u16) vfid, true);
3867         if (!p_vf)
3868                 return;
3869
3870         mbx = &p_vf->vf_mbx;
3871
3872         /* qed_iov_process_mbx_request */
3873         if (!mbx->b_pending_msg) {
3874                 DP_NOTICE(p_hwfn,
3875                           "VF[%02x]: Trying to process mailbox message when none is pending\n",
3876                           p_vf->abs_vf_id);
3877                 return;
3878         }
3879         mbx->b_pending_msg = false;
3880
3881         mbx->first_tlv = mbx->req_virt->first_tlv;
3882
3883         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3884                    "VF[%02x]: Processing mailbox message [type %04x]\n",
3885                    p_vf->abs_vf_id, mbx->first_tlv.tl.type);
3886
3887         /* check if tlv type is known */
3888         if (qed_iov_tlv_supported(mbx->first_tlv.tl.type) &&
3889             !p_vf->b_malicious) {
3890                 switch (mbx->first_tlv.tl.type) {
3891                 case CHANNEL_TLV_ACQUIRE:
3892                         qed_iov_vf_mbx_acquire(p_hwfn, p_ptt, p_vf);
3893                         break;
3894                 case CHANNEL_TLV_VPORT_START:
3895                         qed_iov_vf_mbx_start_vport(p_hwfn, p_ptt, p_vf);
3896                         break;
3897                 case CHANNEL_TLV_VPORT_TEARDOWN:
3898                         qed_iov_vf_mbx_stop_vport(p_hwfn, p_ptt, p_vf);
3899                         break;
3900                 case CHANNEL_TLV_START_RXQ:
3901                         qed_iov_vf_mbx_start_rxq(p_hwfn, p_ptt, p_vf);
3902                         break;
3903                 case CHANNEL_TLV_START_TXQ:
3904                         qed_iov_vf_mbx_start_txq(p_hwfn, p_ptt, p_vf);
3905                         break;
3906                 case CHANNEL_TLV_STOP_RXQS:
3907                         qed_iov_vf_mbx_stop_rxqs(p_hwfn, p_ptt, p_vf);
3908                         break;
3909                 case CHANNEL_TLV_STOP_TXQS:
3910                         qed_iov_vf_mbx_stop_txqs(p_hwfn, p_ptt, p_vf);
3911                         break;
3912                 case CHANNEL_TLV_UPDATE_RXQ:
3913                         qed_iov_vf_mbx_update_rxqs(p_hwfn, p_ptt, p_vf);
3914                         break;
3915                 case CHANNEL_TLV_VPORT_UPDATE:
3916                         qed_iov_vf_mbx_vport_update(p_hwfn, p_ptt, p_vf);
3917                         break;
3918                 case CHANNEL_TLV_UCAST_FILTER:
3919                         qed_iov_vf_mbx_ucast_filter(p_hwfn, p_ptt, p_vf);
3920                         break;
3921                 case CHANNEL_TLV_CLOSE:
3922                         qed_iov_vf_mbx_close(p_hwfn, p_ptt, p_vf);
3923                         break;
3924                 case CHANNEL_TLV_INT_CLEANUP:
3925                         qed_iov_vf_mbx_int_cleanup(p_hwfn, p_ptt, p_vf);
3926                         break;
3927                 case CHANNEL_TLV_RELEASE:
3928                         qed_iov_vf_mbx_release(p_hwfn, p_ptt, p_vf);
3929                         break;
3930                 case CHANNEL_TLV_UPDATE_TUNN_PARAM:
3931                         qed_iov_vf_mbx_update_tunn_param(p_hwfn, p_ptt, p_vf);
3932                         break;
3933                 case CHANNEL_TLV_COALESCE_UPDATE:
3934                         qed_iov_vf_pf_set_coalesce(p_hwfn, p_ptt, p_vf);
3935                         break;
3936                 case CHANNEL_TLV_COALESCE_READ:
3937                         qed_iov_vf_pf_get_coalesce(p_hwfn, p_ptt, p_vf);
3938                         break;
3939                 case CHANNEL_TLV_BULLETIN_UPDATE_MAC:
3940                         qed_iov_vf_pf_bulletin_update_mac(p_hwfn, p_ptt, p_vf);
3941                         break;
3942                 }
3943         } else if (qed_iov_tlv_supported(mbx->first_tlv.tl.type)) {
3944                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3945                            "VF [%02x] - considered malicious; Ignoring TLV [%04x]\n",
3946                            p_vf->abs_vf_id, mbx->first_tlv.tl.type);
3947
3948                 qed_iov_prepare_resp(p_hwfn, p_ptt, p_vf,
3949                                      mbx->first_tlv.tl.type,
3950                                      sizeof(struct pfvf_def_resp_tlv),
3951                                      PFVF_STATUS_MALICIOUS);
3952         } else {
3953                 /* unknown TLV - this may belong to a VF driver from the future
3954                  * - a version written after this PF driver was written, which
3955                  * supports features unknown as of yet. Too bad since we don't
3956                  * support them. Or this may be because someone wrote a crappy
3957                  * VF driver and is sending garbage over the channel.
3958                  */
3959                 DP_NOTICE(p_hwfn,
3960                           "VF[%02x]: unknown TLV. type %04x length %04x padding %08x reply address %llu\n",
3961                           p_vf->abs_vf_id,
3962                           mbx->first_tlv.tl.type,
3963                           mbx->first_tlv.tl.length,
3964                           mbx->first_tlv.padding, mbx->first_tlv.reply_address);
3965
3966                 /* Try replying in case reply address matches the acquisition's
3967                  * posted address.
3968                  */
3969                 if (p_vf->acquire.first_tlv.reply_address &&
3970                     (mbx->first_tlv.reply_address ==
3971                      p_vf->acquire.first_tlv.reply_address)) {
3972                         qed_iov_prepare_resp(p_hwfn, p_ptt, p_vf,
3973                                              mbx->first_tlv.tl.type,
3974                                              sizeof(struct pfvf_def_resp_tlv),
3975                                              PFVF_STATUS_NOT_SUPPORTED);
3976                 } else {
3977                         DP_VERBOSE(p_hwfn,
3978                                    QED_MSG_IOV,
3979                                    "VF[%02x]: Can't respond to TLV - no valid reply address\n",
3980                                    p_vf->abs_vf_id);
3981                 }
3982         }
3983 }
3984
3985 static void qed_iov_pf_get_pending_events(struct qed_hwfn *p_hwfn, u64 *events)
3986 {
3987         int i;
3988
3989         memset(events, 0, sizeof(u64) * QED_VF_ARRAY_LENGTH);
3990
3991         qed_for_each_vf(p_hwfn, i) {
3992                 struct qed_vf_info *p_vf;
3993
3994                 p_vf = &p_hwfn->pf_iov_info->vfs_array[i];
3995                 if (p_vf->vf_mbx.b_pending_msg)
3996                         events[i / 64] |= 1ULL << (i % 64);
3997         }
3998 }
3999
4000 static struct qed_vf_info *qed_sriov_get_vf_from_absid(struct qed_hwfn *p_hwfn,
4001                                                        u16 abs_vfid)
4002 {
4003         u8 min = (u8) p_hwfn->cdev->p_iov_info->first_vf_in_pf;
4004
4005         if (!_qed_iov_pf_sanity_check(p_hwfn, (int)abs_vfid - min, false)) {
4006                 DP_VERBOSE(p_hwfn,
4007                            QED_MSG_IOV,
4008                            "Got indication for VF [abs 0x%08x] that cannot be handled by PF\n",
4009                            abs_vfid);
4010                 return NULL;
4011         }
4012
4013         return &p_hwfn->pf_iov_info->vfs_array[(u8) abs_vfid - min];
4014 }
4015
4016 static int qed_sriov_vfpf_msg(struct qed_hwfn *p_hwfn,
4017                               u16 abs_vfid, struct regpair *vf_msg)
4018 {
4019         struct qed_vf_info *p_vf = qed_sriov_get_vf_from_absid(p_hwfn,
4020                            abs_vfid);
4021
4022         if (!p_vf)
4023                 return 0;
4024
4025         /* List the physical address of the request so that handler
4026          * could later on copy the message from it.
4027          */
4028         p_vf->vf_mbx.pending_req = (((u64)vf_msg->hi) << 32) | vf_msg->lo;
4029
4030         /* Mark the event and schedule the workqueue */
4031         p_vf->vf_mbx.b_pending_msg = true;
4032         qed_schedule_iov(p_hwfn, QED_IOV_WQ_MSG_FLAG);
4033
4034         return 0;
4035 }
4036
4037 static void qed_sriov_vfpf_malicious(struct qed_hwfn *p_hwfn,
4038                                      struct malicious_vf_eqe_data *p_data)
4039 {
4040         struct qed_vf_info *p_vf;
4041
4042         p_vf = qed_sriov_get_vf_from_absid(p_hwfn, p_data->vf_id);
4043
4044         if (!p_vf)
4045                 return;
4046
4047         if (!p_vf->b_malicious) {
4048                 DP_NOTICE(p_hwfn,
4049                           "VF [%d] - Malicious behavior [%02x]\n",
4050                           p_vf->abs_vf_id, p_data->err_id);
4051
4052                 p_vf->b_malicious = true;
4053         } else {
4054                 DP_INFO(p_hwfn,
4055                         "VF [%d] - Malicious behavior [%02x]\n",
4056                         p_vf->abs_vf_id, p_data->err_id);
4057         }
4058 }
4059
4060 static int qed_sriov_eqe_event(struct qed_hwfn *p_hwfn,
4061                                u8 opcode,
4062                                __le16 echo,
4063                                union event_ring_data *data, u8 fw_return_code)
4064 {
4065         switch (opcode) {
4066         case COMMON_EVENT_VF_PF_CHANNEL:
4067                 return qed_sriov_vfpf_msg(p_hwfn, le16_to_cpu(echo),
4068                                           &data->vf_pf_channel.msg_addr);
4069         case COMMON_EVENT_MALICIOUS_VF:
4070                 qed_sriov_vfpf_malicious(p_hwfn, &data->malicious_vf);
4071                 return 0;
4072         default:
4073                 DP_INFO(p_hwfn->cdev, "Unknown sriov eqe event 0x%02x\n",
4074                         opcode);
4075                 return -EINVAL;
4076         }
4077 }
4078
4079 u16 qed_iov_get_next_active_vf(struct qed_hwfn *p_hwfn, u16 rel_vf_id)
4080 {
4081         struct qed_hw_sriov_info *p_iov = p_hwfn->cdev->p_iov_info;
4082         u16 i;
4083
4084         if (!p_iov)
4085                 goto out;
4086
4087         for (i = rel_vf_id; i < p_iov->total_vfs; i++)
4088                 if (qed_iov_is_valid_vfid(p_hwfn, rel_vf_id, true, false))
4089                         return i;
4090
4091 out:
4092         return MAX_NUM_VFS;
4093 }
4094
4095 static int qed_iov_copy_vf_msg(struct qed_hwfn *p_hwfn, struct qed_ptt *ptt,
4096                                int vfid)
4097 {
4098         struct qed_dmae_params params;
4099         struct qed_vf_info *vf_info;
4100
4101         vf_info = qed_iov_get_vf_info(p_hwfn, (u16) vfid, true);
4102         if (!vf_info)
4103                 return -EINVAL;
4104
4105         memset(&params, 0, sizeof(struct qed_dmae_params));
4106         params.flags = QED_DMAE_FLAG_VF_SRC | QED_DMAE_FLAG_COMPLETION_DST;
4107         params.src_vfid = vf_info->abs_vf_id;
4108
4109         if (qed_dmae_host2host(p_hwfn, ptt,
4110                                vf_info->vf_mbx.pending_req,
4111                                vf_info->vf_mbx.req_phys,
4112                                sizeof(union vfpf_tlvs) / 4, &params)) {
4113                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
4114                            "Failed to copy message from VF 0x%02x\n", vfid);
4115
4116                 return -EIO;
4117         }
4118
4119         return 0;
4120 }
4121
4122 static void qed_iov_bulletin_set_forced_mac(struct qed_hwfn *p_hwfn,
4123                                             u8 *mac, int vfid)
4124 {
4125         struct qed_vf_info *vf_info;
4126         u64 feature;
4127
4128         vf_info = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
4129         if (!vf_info) {
4130                 DP_NOTICE(p_hwfn->cdev,
4131                           "Can not set forced MAC, invalid vfid [%d]\n", vfid);
4132                 return;
4133         }
4134
4135         if (vf_info->b_malicious) {
4136                 DP_NOTICE(p_hwfn->cdev,
4137                           "Can't set forced MAC to malicious VF [%d]\n", vfid);
4138                 return;
4139         }
4140
4141         if (vf_info->p_vf_info.is_trusted_configured) {
4142                 feature = BIT(VFPF_BULLETIN_MAC_ADDR);
4143                 /* Trust mode will disable Forced MAC */
4144                 vf_info->bulletin.p_virt->valid_bitmap &=
4145                         ~BIT(MAC_ADDR_FORCED);
4146         } else {
4147                 feature = BIT(MAC_ADDR_FORCED);
4148                 /* Forced MAC will disable MAC_ADDR */
4149                 vf_info->bulletin.p_virt->valid_bitmap &=
4150                         ~BIT(VFPF_BULLETIN_MAC_ADDR);
4151         }
4152
4153         memcpy(vf_info->bulletin.p_virt->mac, mac, ETH_ALEN);
4154
4155         vf_info->bulletin.p_virt->valid_bitmap |= feature;
4156
4157         qed_iov_configure_vport_forced(p_hwfn, vf_info, feature);
4158 }
4159
4160 static int qed_iov_bulletin_set_mac(struct qed_hwfn *p_hwfn, u8 *mac, int vfid)
4161 {
4162         struct qed_vf_info *vf_info;
4163         u64 feature;
4164
4165         vf_info = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
4166         if (!vf_info) {
4167                 DP_NOTICE(p_hwfn->cdev, "Can not set MAC, invalid vfid [%d]\n",
4168                           vfid);
4169                 return -EINVAL;
4170         }
4171
4172         if (vf_info->b_malicious) {
4173                 DP_NOTICE(p_hwfn->cdev, "Can't set MAC to malicious VF [%d]\n",
4174                           vfid);
4175                 return -EINVAL;
4176         }
4177
4178         if (vf_info->bulletin.p_virt->valid_bitmap & BIT(MAC_ADDR_FORCED)) {
4179                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
4180                            "Can not set MAC, Forced MAC is configured\n");
4181                 return -EINVAL;
4182         }
4183
4184         feature = BIT(VFPF_BULLETIN_MAC_ADDR);
4185         ether_addr_copy(vf_info->bulletin.p_virt->mac, mac);
4186
4187         vf_info->bulletin.p_virt->valid_bitmap |= feature;
4188
4189         if (vf_info->p_vf_info.is_trusted_configured)
4190                 qed_iov_configure_vport_forced(p_hwfn, vf_info, feature);
4191
4192         return 0;
4193 }
4194
4195 static void qed_iov_bulletin_set_forced_vlan(struct qed_hwfn *p_hwfn,
4196                                              u16 pvid, int vfid)
4197 {
4198         struct qed_vf_info *vf_info;
4199         u64 feature;
4200
4201         vf_info = qed_iov_get_vf_info(p_hwfn, (u16) vfid, true);
4202         if (!vf_info) {
4203                 DP_NOTICE(p_hwfn->cdev,
4204                           "Can not set forced MAC, invalid vfid [%d]\n", vfid);
4205                 return;
4206         }
4207
4208         if (vf_info->b_malicious) {
4209                 DP_NOTICE(p_hwfn->cdev,
4210                           "Can't set forced vlan to malicious VF [%d]\n", vfid);
4211                 return;
4212         }
4213
4214         feature = 1 << VLAN_ADDR_FORCED;
4215         vf_info->bulletin.p_virt->pvid = pvid;
4216         if (pvid)
4217                 vf_info->bulletin.p_virt->valid_bitmap |= feature;
4218         else
4219                 vf_info->bulletin.p_virt->valid_bitmap &= ~feature;
4220
4221         qed_iov_configure_vport_forced(p_hwfn, vf_info, feature);
4222 }
4223
4224 void qed_iov_bulletin_set_udp_ports(struct qed_hwfn *p_hwfn,
4225                                     int vfid, u16 vxlan_port, u16 geneve_port)
4226 {
4227         struct qed_vf_info *vf_info;
4228
4229         vf_info = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
4230         if (!vf_info) {
4231                 DP_NOTICE(p_hwfn->cdev,
4232                           "Can not set udp ports, invalid vfid [%d]\n", vfid);
4233                 return;
4234         }
4235
4236         if (vf_info->b_malicious) {
4237                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
4238                            "Can not set udp ports to malicious VF [%d]\n",
4239                            vfid);
4240                 return;
4241         }
4242
4243         vf_info->bulletin.p_virt->vxlan_udp_port = vxlan_port;
4244         vf_info->bulletin.p_virt->geneve_udp_port = geneve_port;
4245 }
4246
4247 static bool qed_iov_vf_has_vport_instance(struct qed_hwfn *p_hwfn, int vfid)
4248 {
4249         struct qed_vf_info *p_vf_info;
4250
4251         p_vf_info = qed_iov_get_vf_info(p_hwfn, (u16) vfid, true);
4252         if (!p_vf_info)
4253                 return false;
4254
4255         return !!p_vf_info->vport_instance;
4256 }
4257
4258 static bool qed_iov_is_vf_stopped(struct qed_hwfn *p_hwfn, int vfid)
4259 {
4260         struct qed_vf_info *p_vf_info;
4261
4262         p_vf_info = qed_iov_get_vf_info(p_hwfn, (u16) vfid, true);
4263         if (!p_vf_info)
4264                 return true;
4265
4266         return p_vf_info->state == VF_STOPPED;
4267 }
4268
4269 static bool qed_iov_spoofchk_get(struct qed_hwfn *p_hwfn, int vfid)
4270 {
4271         struct qed_vf_info *vf_info;
4272
4273         vf_info = qed_iov_get_vf_info(p_hwfn, (u16) vfid, true);
4274         if (!vf_info)
4275                 return false;
4276
4277         return vf_info->spoof_chk;
4278 }
4279
4280 static int qed_iov_spoofchk_set(struct qed_hwfn *p_hwfn, int vfid, bool val)
4281 {
4282         struct qed_vf_info *vf;
4283         int rc = -EINVAL;
4284
4285         if (!qed_iov_pf_sanity_check(p_hwfn, vfid)) {
4286                 DP_NOTICE(p_hwfn,
4287                           "SR-IOV sanity check failed, can't set spoofchk\n");
4288                 goto out;
4289         }
4290
4291         vf = qed_iov_get_vf_info(p_hwfn, (u16) vfid, true);
4292         if (!vf)
4293                 goto out;
4294
4295         if (!qed_iov_vf_has_vport_instance(p_hwfn, vfid)) {
4296                 /* After VF VPORT start PF will configure spoof check */
4297                 vf->req_spoofchk_val = val;
4298                 rc = 0;
4299                 goto out;
4300         }
4301
4302         rc = __qed_iov_spoofchk_set(p_hwfn, vf, val);
4303
4304 out:
4305         return rc;
4306 }
4307
4308 static u8 *qed_iov_bulletin_get_mac(struct qed_hwfn *p_hwfn, u16 rel_vf_id)
4309 {
4310         struct qed_vf_info *p_vf;
4311
4312         p_vf = qed_iov_get_vf_info(p_hwfn, rel_vf_id, true);
4313         if (!p_vf || !p_vf->bulletin.p_virt)
4314                 return NULL;
4315
4316         if (!(p_vf->bulletin.p_virt->valid_bitmap &
4317               BIT(VFPF_BULLETIN_MAC_ADDR)))
4318                 return NULL;
4319
4320         return p_vf->bulletin.p_virt->mac;
4321 }
4322
4323 static u8 *qed_iov_bulletin_get_forced_mac(struct qed_hwfn *p_hwfn,
4324                                            u16 rel_vf_id)
4325 {
4326         struct qed_vf_info *p_vf;
4327
4328         p_vf = qed_iov_get_vf_info(p_hwfn, rel_vf_id, true);
4329         if (!p_vf || !p_vf->bulletin.p_virt)
4330                 return NULL;
4331
4332         if (!(p_vf->bulletin.p_virt->valid_bitmap & BIT(MAC_ADDR_FORCED)))
4333                 return NULL;
4334
4335         return p_vf->bulletin.p_virt->mac;
4336 }
4337
4338 static u16
4339 qed_iov_bulletin_get_forced_vlan(struct qed_hwfn *p_hwfn, u16 rel_vf_id)
4340 {
4341         struct qed_vf_info *p_vf;
4342
4343         p_vf = qed_iov_get_vf_info(p_hwfn, rel_vf_id, true);
4344         if (!p_vf || !p_vf->bulletin.p_virt)
4345                 return 0;
4346
4347         if (!(p_vf->bulletin.p_virt->valid_bitmap & BIT(VLAN_ADDR_FORCED)))
4348                 return 0;
4349
4350         return p_vf->bulletin.p_virt->pvid;
4351 }
4352
4353 static int qed_iov_configure_tx_rate(struct qed_hwfn *p_hwfn,
4354                                      struct qed_ptt *p_ptt, int vfid, int val)
4355 {
4356         struct qed_mcp_link_state *p_link;
4357         struct qed_vf_info *vf;
4358         u8 abs_vp_id = 0;
4359         int rc;
4360
4361         vf = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
4362         if (!vf)
4363                 return -EINVAL;
4364
4365         rc = qed_fw_vport(p_hwfn, vf->vport_id, &abs_vp_id);
4366         if (rc)
4367                 return rc;
4368
4369         p_link = &QED_LEADING_HWFN(p_hwfn->cdev)->mcp_info->link_output;
4370
4371         return qed_init_vport_rl(p_hwfn, p_ptt, abs_vp_id, (u32)val,
4372                                  p_link->speed);
4373 }
4374
4375 static int
4376 qed_iov_configure_min_tx_rate(struct qed_dev *cdev, int vfid, u32 rate)
4377 {
4378         struct qed_vf_info *vf;
4379         u8 vport_id;
4380         int i;
4381
4382         for_each_hwfn(cdev, i) {
4383                 struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
4384
4385                 if (!qed_iov_pf_sanity_check(p_hwfn, vfid)) {
4386                         DP_NOTICE(p_hwfn,
4387                                   "SR-IOV sanity check failed, can't set min rate\n");
4388                         return -EINVAL;
4389                 }
4390         }
4391
4392         vf = qed_iov_get_vf_info(QED_LEADING_HWFN(cdev), (u16)vfid, true);
4393         vport_id = vf->vport_id;
4394
4395         return qed_configure_vport_wfq(cdev, vport_id, rate);
4396 }
4397
4398 static int qed_iov_get_vf_min_rate(struct qed_hwfn *p_hwfn, int vfid)
4399 {
4400         struct qed_wfq_data *vf_vp_wfq;
4401         struct qed_vf_info *vf_info;
4402
4403         vf_info = qed_iov_get_vf_info(p_hwfn, (u16) vfid, true);
4404         if (!vf_info)
4405                 return 0;
4406
4407         vf_vp_wfq = &p_hwfn->qm_info.wfq_data[vf_info->vport_id];
4408
4409         if (vf_vp_wfq->configured)
4410                 return vf_vp_wfq->min_speed;
4411         else
4412                 return 0;
4413 }
4414
4415 /**
4416  * qed_schedule_iov - schedules IOV task for VF and PF
4417  * @hwfn: hardware function pointer
4418  * @flag: IOV flag for VF/PF
4419  */
4420 void qed_schedule_iov(struct qed_hwfn *hwfn, enum qed_iov_wq_flag flag)
4421 {
4422         smp_mb__before_atomic();
4423         set_bit(flag, &hwfn->iov_task_flags);
4424         smp_mb__after_atomic();
4425         DP_VERBOSE(hwfn, QED_MSG_IOV, "Scheduling iov task [Flag: %d]\n", flag);
4426         queue_delayed_work(hwfn->iov_wq, &hwfn->iov_task, 0);
4427 }
4428
4429 void qed_vf_start_iov_wq(struct qed_dev *cdev)
4430 {
4431         int i;
4432
4433         for_each_hwfn(cdev, i)
4434             queue_delayed_work(cdev->hwfns[i].iov_wq,
4435                                &cdev->hwfns[i].iov_task, 0);
4436 }
4437
4438 int qed_sriov_disable(struct qed_dev *cdev, bool pci_enabled)
4439 {
4440         int i, j;
4441
4442         for_each_hwfn(cdev, i)
4443             if (cdev->hwfns[i].iov_wq)
4444                 flush_workqueue(cdev->hwfns[i].iov_wq);
4445
4446         /* Mark VFs for disablement */
4447         qed_iov_set_vfs_to_disable(cdev, true);
4448
4449         if (cdev->p_iov_info && cdev->p_iov_info->num_vfs && pci_enabled)
4450                 pci_disable_sriov(cdev->pdev);
4451
4452         for_each_hwfn(cdev, i) {
4453                 struct qed_hwfn *hwfn = &cdev->hwfns[i];
4454                 struct qed_ptt *ptt = qed_ptt_acquire(hwfn);
4455
4456                 /* Failure to acquire the ptt in 100g creates an odd error
4457                  * where the first engine has already relased IOV.
4458                  */
4459                 if (!ptt) {
4460                         DP_ERR(hwfn, "Failed to acquire ptt\n");
4461                         return -EBUSY;
4462                 }
4463
4464                 /* Clean WFQ db and configure equal weight for all vports */
4465                 qed_clean_wfq_db(hwfn, ptt);
4466
4467                 qed_for_each_vf(hwfn, j) {
4468                         int k;
4469
4470                         if (!qed_iov_is_valid_vfid(hwfn, j, true, false))
4471                                 continue;
4472
4473                         /* Wait until VF is disabled before releasing */
4474                         for (k = 0; k < 100; k++) {
4475                                 if (!qed_iov_is_vf_stopped(hwfn, j))
4476                                         msleep(20);
4477                                 else
4478                                         break;
4479                         }
4480
4481                         if (k < 100)
4482                                 qed_iov_release_hw_for_vf(&cdev->hwfns[i],
4483                                                           ptt, j);
4484                         else
4485                                 DP_ERR(hwfn,
4486                                        "Timeout waiting for VF's FLR to end\n");
4487                 }
4488
4489                 qed_ptt_release(hwfn, ptt);
4490         }
4491
4492         qed_iov_set_vfs_to_disable(cdev, false);
4493
4494         return 0;
4495 }
4496
4497 static void qed_sriov_enable_qid_config(struct qed_hwfn *hwfn,
4498                                         u16 vfid,
4499                                         struct qed_iov_vf_init_params *params)
4500 {
4501         u16 base, i;
4502
4503         /* Since we have an equal resource distribution per-VF, and we assume
4504          * PF has acquired the QED_PF_L2_QUE first queues, we start setting
4505          * sequentially from there.
4506          */
4507         base = FEAT_NUM(hwfn, QED_PF_L2_QUE) + vfid * params->num_queues;
4508
4509         params->rel_vf_id = vfid;
4510         for (i = 0; i < params->num_queues; i++) {
4511                 params->req_rx_queue[i] = base + i;
4512                 params->req_tx_queue[i] = base + i;
4513         }
4514 }
4515
4516 static int qed_sriov_enable(struct qed_dev *cdev, int num)
4517 {
4518         struct qed_iov_vf_init_params params;
4519         struct qed_hwfn *hwfn;
4520         struct qed_ptt *ptt;
4521         int i, j, rc;
4522
4523         if (num >= RESC_NUM(&cdev->hwfns[0], QED_VPORT)) {
4524                 DP_NOTICE(cdev, "Can start at most %d VFs\n",
4525                           RESC_NUM(&cdev->hwfns[0], QED_VPORT) - 1);
4526                 return -EINVAL;
4527         }
4528
4529         memset(&params, 0, sizeof(params));
4530
4531         /* Initialize HW for VF access */
4532         for_each_hwfn(cdev, j) {
4533                 hwfn = &cdev->hwfns[j];
4534                 ptt = qed_ptt_acquire(hwfn);
4535
4536                 /* Make sure not to use more than 16 queues per VF */
4537                 params.num_queues = min_t(int,
4538                                           FEAT_NUM(hwfn, QED_VF_L2_QUE) / num,
4539                                           16);
4540
4541                 if (!ptt) {
4542                         DP_ERR(hwfn, "Failed to acquire ptt\n");
4543                         rc = -EBUSY;
4544                         goto err;
4545                 }
4546
4547                 for (i = 0; i < num; i++) {
4548                         if (!qed_iov_is_valid_vfid(hwfn, i, false, true))
4549                                 continue;
4550
4551                         qed_sriov_enable_qid_config(hwfn, i, &params);
4552                         rc = qed_iov_init_hw_for_vf(hwfn, ptt, &params);
4553                         if (rc) {
4554                                 DP_ERR(cdev, "Failed to enable VF[%d]\n", i);
4555                                 qed_ptt_release(hwfn, ptt);
4556                                 goto err;
4557                         }
4558                 }
4559
4560                 qed_ptt_release(hwfn, ptt);
4561         }
4562
4563         /* Enable SRIOV PCIe functions */
4564         rc = pci_enable_sriov(cdev->pdev, num);
4565         if (rc) {
4566                 DP_ERR(cdev, "Failed to enable sriov [%d]\n", rc);
4567                 goto err;
4568         }
4569
4570         hwfn = QED_LEADING_HWFN(cdev);
4571         ptt = qed_ptt_acquire(hwfn);
4572         if (!ptt) {
4573                 DP_ERR(hwfn, "Failed to acquire ptt\n");
4574                 rc = -EBUSY;
4575                 goto err;
4576         }
4577
4578         rc = qed_mcp_ov_update_eswitch(hwfn, ptt, QED_OV_ESWITCH_VEB);
4579         if (rc)
4580                 DP_INFO(cdev, "Failed to update eswitch mode\n");
4581         qed_ptt_release(hwfn, ptt);
4582
4583         return num;
4584
4585 err:
4586         qed_sriov_disable(cdev, false);
4587         return rc;
4588 }
4589
4590 static int qed_sriov_configure(struct qed_dev *cdev, int num_vfs_param)
4591 {
4592         if (!IS_QED_SRIOV(cdev)) {
4593                 DP_VERBOSE(cdev, QED_MSG_IOV, "SR-IOV is not supported\n");
4594                 return -EOPNOTSUPP;
4595         }
4596
4597         if (num_vfs_param)
4598                 return qed_sriov_enable(cdev, num_vfs_param);
4599         else
4600                 return qed_sriov_disable(cdev, true);
4601 }
4602
4603 static int qed_sriov_pf_set_mac(struct qed_dev *cdev, u8 *mac, int vfid)
4604 {
4605         int i;
4606
4607         if (!IS_QED_SRIOV(cdev) || !IS_PF_SRIOV_ALLOC(&cdev->hwfns[0])) {
4608                 DP_VERBOSE(cdev, QED_MSG_IOV,
4609                            "Cannot set a VF MAC; Sriov is not enabled\n");
4610                 return -EINVAL;
4611         }
4612
4613         if (!qed_iov_is_valid_vfid(&cdev->hwfns[0], vfid, true, true)) {
4614                 DP_VERBOSE(cdev, QED_MSG_IOV,
4615                            "Cannot set VF[%d] MAC (VF is not active)\n", vfid);
4616                 return -EINVAL;
4617         }
4618
4619         for_each_hwfn(cdev, i) {
4620                 struct qed_hwfn *hwfn = &cdev->hwfns[i];
4621                 struct qed_public_vf_info *vf_info;
4622
4623                 vf_info = qed_iov_get_public_vf_info(hwfn, vfid, true);
4624                 if (!vf_info)
4625                         continue;
4626
4627                 /* Set the MAC, and schedule the IOV task */
4628                 if (vf_info->is_trusted_configured)
4629                         ether_addr_copy(vf_info->mac, mac);
4630                 else
4631                         ether_addr_copy(vf_info->forced_mac, mac);
4632
4633                 qed_schedule_iov(hwfn, QED_IOV_WQ_SET_UNICAST_FILTER_FLAG);
4634         }
4635
4636         return 0;
4637 }
4638
4639 static int qed_sriov_pf_set_vlan(struct qed_dev *cdev, u16 vid, int vfid)
4640 {
4641         int i;
4642
4643         if (!IS_QED_SRIOV(cdev) || !IS_PF_SRIOV_ALLOC(&cdev->hwfns[0])) {
4644                 DP_VERBOSE(cdev, QED_MSG_IOV,
4645                            "Cannot set a VF MAC; Sriov is not enabled\n");
4646                 return -EINVAL;
4647         }
4648
4649         if (!qed_iov_is_valid_vfid(&cdev->hwfns[0], vfid, true, true)) {
4650                 DP_VERBOSE(cdev, QED_MSG_IOV,
4651                            "Cannot set VF[%d] MAC (VF is not active)\n", vfid);
4652                 return -EINVAL;
4653         }
4654
4655         for_each_hwfn(cdev, i) {
4656                 struct qed_hwfn *hwfn = &cdev->hwfns[i];
4657                 struct qed_public_vf_info *vf_info;
4658
4659                 vf_info = qed_iov_get_public_vf_info(hwfn, vfid, true);
4660                 if (!vf_info)
4661                         continue;
4662
4663                 /* Set the forced vlan, and schedule the IOV task */
4664                 vf_info->forced_vlan = vid;
4665                 qed_schedule_iov(hwfn, QED_IOV_WQ_SET_UNICAST_FILTER_FLAG);
4666         }
4667
4668         return 0;
4669 }
4670
4671 static int qed_get_vf_config(struct qed_dev *cdev,
4672                              int vf_id, struct ifla_vf_info *ivi)
4673 {
4674         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
4675         struct qed_public_vf_info *vf_info;
4676         struct qed_mcp_link_state link;
4677         u32 tx_rate;
4678
4679         /* Sanitize request */
4680         if (IS_VF(cdev))
4681                 return -EINVAL;
4682
4683         if (!qed_iov_is_valid_vfid(&cdev->hwfns[0], vf_id, true, false)) {
4684                 DP_VERBOSE(cdev, QED_MSG_IOV,
4685                            "VF index [%d] isn't active\n", vf_id);
4686                 return -EINVAL;
4687         }
4688
4689         vf_info = qed_iov_get_public_vf_info(hwfn, vf_id, true);
4690
4691         qed_iov_get_link(hwfn, vf_id, NULL, &link, NULL);
4692
4693         /* Fill information about VF */
4694         ivi->vf = vf_id;
4695
4696         if (is_valid_ether_addr(vf_info->forced_mac))
4697                 ether_addr_copy(ivi->mac, vf_info->forced_mac);
4698         else
4699                 ether_addr_copy(ivi->mac, vf_info->mac);
4700
4701         ivi->vlan = vf_info->forced_vlan;
4702         ivi->spoofchk = qed_iov_spoofchk_get(hwfn, vf_id);
4703         ivi->linkstate = vf_info->link_state;
4704         tx_rate = vf_info->tx_rate;
4705         ivi->max_tx_rate = tx_rate ? tx_rate : link.speed;
4706         ivi->min_tx_rate = qed_iov_get_vf_min_rate(hwfn, vf_id);
4707
4708         return 0;
4709 }
4710
4711 void qed_inform_vf_link_state(struct qed_hwfn *hwfn)
4712 {
4713         struct qed_hwfn *lead_hwfn = QED_LEADING_HWFN(hwfn->cdev);
4714         struct qed_mcp_link_capabilities caps;
4715         struct qed_mcp_link_params params;
4716         struct qed_mcp_link_state link;
4717         int i;
4718
4719         if (!hwfn->pf_iov_info)
4720                 return;
4721
4722         /* Update bulletin of all future possible VFs with link configuration */
4723         for (i = 0; i < hwfn->cdev->p_iov_info->total_vfs; i++) {
4724                 struct qed_public_vf_info *vf_info;
4725
4726                 vf_info = qed_iov_get_public_vf_info(hwfn, i, false);
4727                 if (!vf_info)
4728                         continue;
4729
4730                 /* Only hwfn0 is actually interested in the link speed.
4731                  * But since only it would receive an MFW indication of link,
4732                  * need to take configuration from it - otherwise things like
4733                  * rate limiting for hwfn1 VF would not work.
4734                  */
4735                 memcpy(&params, qed_mcp_get_link_params(lead_hwfn),
4736                        sizeof(params));
4737                 memcpy(&link, qed_mcp_get_link_state(lead_hwfn), sizeof(link));
4738                 memcpy(&caps, qed_mcp_get_link_capabilities(lead_hwfn),
4739                        sizeof(caps));
4740
4741                 /* Modify link according to the VF's configured link state */
4742                 switch (vf_info->link_state) {
4743                 case IFLA_VF_LINK_STATE_DISABLE:
4744                         link.link_up = false;
4745                         break;
4746                 case IFLA_VF_LINK_STATE_ENABLE:
4747                         link.link_up = true;
4748                         /* Set speed according to maximum supported by HW.
4749                          * that is 40G for regular devices and 100G for CMT
4750                          * mode devices.
4751                          */
4752                         link.speed = (hwfn->cdev->num_hwfns > 1) ?
4753                                      100000 : 40000;
4754                 default:
4755                         /* In auto mode pass PF link image to VF */
4756                         break;
4757                 }
4758
4759                 if (link.link_up && vf_info->tx_rate) {
4760                         struct qed_ptt *ptt;
4761                         int rate;
4762
4763                         rate = min_t(int, vf_info->tx_rate, link.speed);
4764
4765                         ptt = qed_ptt_acquire(hwfn);
4766                         if (!ptt) {
4767                                 DP_NOTICE(hwfn, "Failed to acquire PTT\n");
4768                                 return;
4769                         }
4770
4771                         if (!qed_iov_configure_tx_rate(hwfn, ptt, i, rate)) {
4772                                 vf_info->tx_rate = rate;
4773                                 link.speed = rate;
4774                         }
4775
4776                         qed_ptt_release(hwfn, ptt);
4777                 }
4778
4779                 qed_iov_set_link(hwfn, i, &params, &link, &caps);
4780         }
4781
4782         qed_schedule_iov(hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
4783 }
4784
4785 static int qed_set_vf_link_state(struct qed_dev *cdev,
4786                                  int vf_id, int link_state)
4787 {
4788         int i;
4789
4790         /* Sanitize request */
4791         if (IS_VF(cdev))
4792                 return -EINVAL;
4793
4794         if (!qed_iov_is_valid_vfid(&cdev->hwfns[0], vf_id, true, true)) {
4795                 DP_VERBOSE(cdev, QED_MSG_IOV,
4796                            "VF index [%d] isn't active\n", vf_id);
4797                 return -EINVAL;
4798         }
4799
4800         /* Handle configuration of link state */
4801         for_each_hwfn(cdev, i) {
4802                 struct qed_hwfn *hwfn = &cdev->hwfns[i];
4803                 struct qed_public_vf_info *vf;
4804
4805                 vf = qed_iov_get_public_vf_info(hwfn, vf_id, true);
4806                 if (!vf)
4807                         continue;
4808
4809                 if (vf->link_state == link_state)
4810                         continue;
4811
4812                 vf->link_state = link_state;
4813                 qed_inform_vf_link_state(&cdev->hwfns[i]);
4814         }
4815
4816         return 0;
4817 }
4818
4819 static int qed_spoof_configure(struct qed_dev *cdev, int vfid, bool val)
4820 {
4821         int i, rc = -EINVAL;
4822
4823         for_each_hwfn(cdev, i) {
4824                 struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
4825
4826                 rc = qed_iov_spoofchk_set(p_hwfn, vfid, val);
4827                 if (rc)
4828                         break;
4829         }
4830
4831         return rc;
4832 }
4833
4834 static int qed_configure_max_vf_rate(struct qed_dev *cdev, int vfid, int rate)
4835 {
4836         int i;
4837
4838         for_each_hwfn(cdev, i) {
4839                 struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
4840                 struct qed_public_vf_info *vf;
4841
4842                 if (!qed_iov_pf_sanity_check(p_hwfn, vfid)) {
4843                         DP_NOTICE(p_hwfn,
4844                                   "SR-IOV sanity check failed, can't set tx rate\n");
4845                         return -EINVAL;
4846                 }
4847
4848                 vf = qed_iov_get_public_vf_info(p_hwfn, vfid, true);
4849
4850                 vf->tx_rate = rate;
4851
4852                 qed_inform_vf_link_state(p_hwfn);
4853         }
4854
4855         return 0;
4856 }
4857
4858 static int qed_set_vf_rate(struct qed_dev *cdev,
4859                            int vfid, u32 min_rate, u32 max_rate)
4860 {
4861         int rc_min = 0, rc_max = 0;
4862
4863         if (max_rate)
4864                 rc_max = qed_configure_max_vf_rate(cdev, vfid, max_rate);
4865
4866         if (min_rate)
4867                 rc_min = qed_iov_configure_min_tx_rate(cdev, vfid, min_rate);
4868
4869         if (rc_max | rc_min)
4870                 return -EINVAL;
4871
4872         return 0;
4873 }
4874
4875 static int qed_set_vf_trust(struct qed_dev *cdev, int vfid, bool trust)
4876 {
4877         int i;
4878
4879         for_each_hwfn(cdev, i) {
4880                 struct qed_hwfn *hwfn = &cdev->hwfns[i];
4881                 struct qed_public_vf_info *vf;
4882
4883                 if (!qed_iov_pf_sanity_check(hwfn, vfid)) {
4884                         DP_NOTICE(hwfn,
4885                                   "SR-IOV sanity check failed, can't set trust\n");
4886                         return -EINVAL;
4887                 }
4888
4889                 vf = qed_iov_get_public_vf_info(hwfn, vfid, true);
4890
4891                 if (vf->is_trusted_request == trust)
4892                         return 0;
4893                 vf->is_trusted_request = trust;
4894
4895                 qed_schedule_iov(hwfn, QED_IOV_WQ_TRUST_FLAG);
4896         }
4897
4898         return 0;
4899 }
4900
4901 static void qed_handle_vf_msg(struct qed_hwfn *hwfn)
4902 {
4903         u64 events[QED_VF_ARRAY_LENGTH];
4904         struct qed_ptt *ptt;
4905         int i;
4906
4907         ptt = qed_ptt_acquire(hwfn);
4908         if (!ptt) {
4909                 DP_VERBOSE(hwfn, QED_MSG_IOV,
4910                            "Can't acquire PTT; re-scheduling\n");
4911                 qed_schedule_iov(hwfn, QED_IOV_WQ_MSG_FLAG);
4912                 return;
4913         }
4914
4915         qed_iov_pf_get_pending_events(hwfn, events);
4916
4917         DP_VERBOSE(hwfn, QED_MSG_IOV,
4918                    "Event mask of VF events: 0x%llx 0x%llx 0x%llx\n",
4919                    events[0], events[1], events[2]);
4920
4921         qed_for_each_vf(hwfn, i) {
4922                 /* Skip VFs with no pending messages */
4923                 if (!(events[i / 64] & (1ULL << (i % 64))))
4924                         continue;
4925
4926                 DP_VERBOSE(hwfn, QED_MSG_IOV,
4927                            "Handling VF message from VF 0x%02x [Abs 0x%02x]\n",
4928                            i, hwfn->cdev->p_iov_info->first_vf_in_pf + i);
4929
4930                 /* Copy VF's message to PF's request buffer for that VF */
4931                 if (qed_iov_copy_vf_msg(hwfn, ptt, i))
4932                         continue;
4933
4934                 qed_iov_process_mbx_req(hwfn, ptt, i);
4935         }
4936
4937         qed_ptt_release(hwfn, ptt);
4938 }
4939
4940 static bool qed_pf_validate_req_vf_mac(struct qed_hwfn *hwfn,
4941                                        u8 *mac,
4942                                        struct qed_public_vf_info *info)
4943 {
4944         if (info->is_trusted_configured) {
4945                 if (is_valid_ether_addr(info->mac) &&
4946                     (!mac || !ether_addr_equal(mac, info->mac)))
4947                         return true;
4948         } else {
4949                 if (is_valid_ether_addr(info->forced_mac) &&
4950                     (!mac || !ether_addr_equal(mac, info->forced_mac)))
4951                         return true;
4952         }
4953
4954         return false;
4955 }
4956
4957 static void qed_set_bulletin_mac(struct qed_hwfn *hwfn,
4958                                  struct qed_public_vf_info *info,
4959                                  int vfid)
4960 {
4961         if (info->is_trusted_configured)
4962                 qed_iov_bulletin_set_mac(hwfn, info->mac, vfid);
4963         else
4964                 qed_iov_bulletin_set_forced_mac(hwfn, info->forced_mac, vfid);
4965 }
4966
4967 static void qed_handle_pf_set_vf_unicast(struct qed_hwfn *hwfn)
4968 {
4969         int i;
4970
4971         qed_for_each_vf(hwfn, i) {
4972                 struct qed_public_vf_info *info;
4973                 bool update = false;
4974                 u8 *mac;
4975
4976                 info = qed_iov_get_public_vf_info(hwfn, i, true);
4977                 if (!info)
4978                         continue;
4979
4980                 /* Update data on bulletin board */
4981                 if (info->is_trusted_configured)
4982                         mac = qed_iov_bulletin_get_mac(hwfn, i);
4983                 else
4984                         mac = qed_iov_bulletin_get_forced_mac(hwfn, i);
4985
4986                 if (qed_pf_validate_req_vf_mac(hwfn, mac, info)) {
4987                         DP_VERBOSE(hwfn,
4988                                    QED_MSG_IOV,
4989                                    "Handling PF setting of VF MAC to VF 0x%02x [Abs 0x%02x]\n",
4990                                    i,
4991                                    hwfn->cdev->p_iov_info->first_vf_in_pf + i);
4992
4993                         /* Update bulletin board with MAC */
4994                         qed_set_bulletin_mac(hwfn, info, i);
4995                         update = true;
4996                 }
4997
4998                 if (qed_iov_bulletin_get_forced_vlan(hwfn, i) ^
4999                     info->forced_vlan) {
5000                         DP_VERBOSE(hwfn,
5001                                    QED_MSG_IOV,
5002                                    "Handling PF setting of pvid [0x%04x] to VF 0x%02x [Abs 0x%02x]\n",
5003                                    info->forced_vlan,
5004                                    i,
5005                                    hwfn->cdev->p_iov_info->first_vf_in_pf + i);
5006                         qed_iov_bulletin_set_forced_vlan(hwfn,
5007                                                          info->forced_vlan, i);
5008                         update = true;
5009                 }
5010
5011                 if (update)
5012                         qed_schedule_iov(hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
5013         }
5014 }
5015
5016 static void qed_handle_bulletin_post(struct qed_hwfn *hwfn)
5017 {
5018         struct qed_ptt *ptt;
5019         int i;
5020
5021         ptt = qed_ptt_acquire(hwfn);
5022         if (!ptt) {
5023                 DP_NOTICE(hwfn, "Failed allocating a ptt entry\n");
5024                 qed_schedule_iov(hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
5025                 return;
5026         }
5027
5028         qed_for_each_vf(hwfn, i)
5029             qed_iov_post_vf_bulletin(hwfn, i, ptt);
5030
5031         qed_ptt_release(hwfn, ptt);
5032 }
5033
5034 static void qed_update_mac_for_vf_trust_change(struct qed_hwfn *hwfn, int vf_id)
5035 {
5036         struct qed_public_vf_info *vf_info;
5037         struct qed_vf_info *vf;
5038         u8 *force_mac;
5039         int i;
5040
5041         vf_info = qed_iov_get_public_vf_info(hwfn, vf_id, true);
5042         vf = qed_iov_get_vf_info(hwfn, vf_id, true);
5043
5044         if (!vf_info || !vf)
5045                 return;
5046
5047         /* Force MAC converted to generic MAC in case of VF trust on */
5048         if (vf_info->is_trusted_configured &&
5049             (vf->bulletin.p_virt->valid_bitmap & BIT(MAC_ADDR_FORCED))) {
5050                 force_mac = qed_iov_bulletin_get_forced_mac(hwfn, vf_id);
5051
5052                 if (force_mac) {
5053                         /* Clear existing shadow copy of MAC to have a clean
5054                          * slate.
5055                          */
5056                         for (i = 0; i < QED_ETH_VF_NUM_MAC_FILTERS; i++) {
5057                                 if (ether_addr_equal(vf->shadow_config.macs[i],
5058                                                      vf_info->mac)) {
5059                                         memset(vf->shadow_config.macs[i], 0,
5060                                                ETH_ALEN);
5061                                         DP_VERBOSE(hwfn, QED_MSG_IOV,
5062                                                    "Shadow MAC %pM removed for VF 0x%02x, VF trust mode is ON\n",
5063                                                     vf_info->mac, vf_id);
5064                                         break;
5065                                 }
5066                         }
5067
5068                         ether_addr_copy(vf_info->mac, force_mac);
5069                         memset(vf_info->forced_mac, 0, ETH_ALEN);
5070                         vf->bulletin.p_virt->valid_bitmap &=
5071                                         ~BIT(MAC_ADDR_FORCED);
5072                         qed_schedule_iov(hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
5073                 }
5074         }
5075
5076         /* Update shadow copy with VF MAC when trust mode is turned off */
5077         if (!vf_info->is_trusted_configured) {
5078                 u8 empty_mac[ETH_ALEN];
5079
5080                 memset(empty_mac, 0, ETH_ALEN);
5081                 for (i = 0; i < QED_ETH_VF_NUM_MAC_FILTERS; i++) {
5082                         if (ether_addr_equal(vf->shadow_config.macs[i],
5083                                              empty_mac)) {
5084                                 ether_addr_copy(vf->shadow_config.macs[i],
5085                                                 vf_info->mac);
5086                                 DP_VERBOSE(hwfn, QED_MSG_IOV,
5087                                            "Shadow is updated with %pM for VF 0x%02x, VF trust mode is OFF\n",
5088                                             vf_info->mac, vf_id);
5089                                 break;
5090                         }
5091                 }
5092                 /* Clear bulletin when trust mode is turned off,
5093                  * to have a clean slate for next (normal) operations.
5094                  */
5095                 qed_iov_bulletin_set_mac(hwfn, empty_mac, vf_id);
5096                 qed_schedule_iov(hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
5097         }
5098 }
5099
5100 static void qed_iov_handle_trust_change(struct qed_hwfn *hwfn)
5101 {
5102         struct qed_sp_vport_update_params params;
5103         struct qed_filter_accept_flags *flags;
5104         struct qed_public_vf_info *vf_info;
5105         struct qed_vf_info *vf;
5106         u8 mask;
5107         int i;
5108
5109         mask = QED_ACCEPT_UCAST_UNMATCHED | QED_ACCEPT_MCAST_UNMATCHED;
5110         flags = &params.accept_flags;
5111
5112         qed_for_each_vf(hwfn, i) {
5113                 /* Need to make sure current requested configuration didn't
5114                  * flip so that we'll end up configuring something that's not
5115                  * needed.
5116                  */
5117                 vf_info = qed_iov_get_public_vf_info(hwfn, i, true);
5118                 if (vf_info->is_trusted_configured ==
5119                     vf_info->is_trusted_request)
5120                         continue;
5121                 vf_info->is_trusted_configured = vf_info->is_trusted_request;
5122
5123                 /* Handle forced MAC mode */
5124                 qed_update_mac_for_vf_trust_change(hwfn, i);
5125
5126                 /* Validate that the VF has a configured vport */
5127                 vf = qed_iov_get_vf_info(hwfn, i, true);
5128                 if (!vf->vport_instance)
5129                         continue;
5130
5131                 memset(&params, 0, sizeof(params));
5132                 params.opaque_fid = vf->opaque_fid;
5133                 params.vport_id = vf->vport_id;
5134
5135                 params.update_ctl_frame_check = 1;
5136                 params.mac_chk_en = !vf_info->is_trusted_configured;
5137
5138                 if (vf_info->rx_accept_mode & mask) {
5139                         flags->update_rx_mode_config = 1;
5140                         flags->rx_accept_filter = vf_info->rx_accept_mode;
5141                 }
5142
5143                 if (vf_info->tx_accept_mode & mask) {
5144                         flags->update_tx_mode_config = 1;
5145                         flags->tx_accept_filter = vf_info->tx_accept_mode;
5146                 }
5147
5148                 /* Remove if needed; Otherwise this would set the mask */
5149                 if (!vf_info->is_trusted_configured) {
5150                         flags->rx_accept_filter &= ~mask;
5151                         flags->tx_accept_filter &= ~mask;
5152                 }
5153
5154                 if (flags->update_rx_mode_config ||
5155                     flags->update_tx_mode_config ||
5156                     params.update_ctl_frame_check)
5157                         qed_sp_vport_update(hwfn, &params,
5158                                             QED_SPQ_MODE_EBLOCK, NULL);
5159         }
5160 }
5161
5162 static void qed_iov_pf_task(struct work_struct *work)
5163
5164 {
5165         struct qed_hwfn *hwfn = container_of(work, struct qed_hwfn,
5166                                              iov_task.work);
5167         int rc;
5168
5169         if (test_and_clear_bit(QED_IOV_WQ_STOP_WQ_FLAG, &hwfn->iov_task_flags))
5170                 return;
5171
5172         if (test_and_clear_bit(QED_IOV_WQ_FLR_FLAG, &hwfn->iov_task_flags)) {
5173                 struct qed_ptt *ptt = qed_ptt_acquire(hwfn);
5174
5175                 if (!ptt) {
5176                         qed_schedule_iov(hwfn, QED_IOV_WQ_FLR_FLAG);
5177                         return;
5178                 }
5179
5180                 rc = qed_iov_vf_flr_cleanup(hwfn, ptt);
5181                 if (rc)
5182                         qed_schedule_iov(hwfn, QED_IOV_WQ_FLR_FLAG);
5183
5184                 qed_ptt_release(hwfn, ptt);
5185         }
5186
5187         if (test_and_clear_bit(QED_IOV_WQ_MSG_FLAG, &hwfn->iov_task_flags))
5188                 qed_handle_vf_msg(hwfn);
5189
5190         if (test_and_clear_bit(QED_IOV_WQ_SET_UNICAST_FILTER_FLAG,
5191                                &hwfn->iov_task_flags))
5192                 qed_handle_pf_set_vf_unicast(hwfn);
5193
5194         if (test_and_clear_bit(QED_IOV_WQ_BULLETIN_UPDATE_FLAG,
5195                                &hwfn->iov_task_flags))
5196                 qed_handle_bulletin_post(hwfn);
5197
5198         if (test_and_clear_bit(QED_IOV_WQ_TRUST_FLAG, &hwfn->iov_task_flags))
5199                 qed_iov_handle_trust_change(hwfn);
5200 }
5201
5202 void qed_iov_wq_stop(struct qed_dev *cdev, bool schedule_first)
5203 {
5204         int i;
5205
5206         for_each_hwfn(cdev, i) {
5207                 if (!cdev->hwfns[i].iov_wq)
5208                         continue;
5209
5210                 if (schedule_first) {
5211                         qed_schedule_iov(&cdev->hwfns[i],
5212                                          QED_IOV_WQ_STOP_WQ_FLAG);
5213                         cancel_delayed_work_sync(&cdev->hwfns[i].iov_task);
5214                 }
5215
5216                 flush_workqueue(cdev->hwfns[i].iov_wq);
5217                 destroy_workqueue(cdev->hwfns[i].iov_wq);
5218         }
5219 }
5220
5221 int qed_iov_wq_start(struct qed_dev *cdev)
5222 {
5223         char name[NAME_SIZE];
5224         int i;
5225
5226         for_each_hwfn(cdev, i) {
5227                 struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
5228
5229                 /* PFs needs a dedicated workqueue only if they support IOV.
5230                  * VFs always require one.
5231                  */
5232                 if (IS_PF(p_hwfn->cdev) && !IS_PF_SRIOV(p_hwfn))
5233                         continue;
5234
5235                 snprintf(name, NAME_SIZE, "iov-%02x:%02x.%02x",
5236                          cdev->pdev->bus->number,
5237                          PCI_SLOT(cdev->pdev->devfn), p_hwfn->abs_pf_id);
5238
5239                 p_hwfn->iov_wq = create_singlethread_workqueue(name);
5240                 if (!p_hwfn->iov_wq) {
5241                         DP_NOTICE(p_hwfn, "Cannot create iov workqueue\n");
5242                         return -ENOMEM;
5243                 }
5244
5245                 if (IS_PF(cdev))
5246                         INIT_DELAYED_WORK(&p_hwfn->iov_task, qed_iov_pf_task);
5247                 else
5248                         INIT_DELAYED_WORK(&p_hwfn->iov_task, qed_iov_vf_task);
5249         }
5250
5251         return 0;
5252 }
5253
5254 const struct qed_iov_hv_ops qed_iov_ops_pass = {
5255         .configure = &qed_sriov_configure,
5256         .set_mac = &qed_sriov_pf_set_mac,
5257         .set_vlan = &qed_sriov_pf_set_vlan,
5258         .get_config = &qed_get_vf_config,
5259         .set_link_state = &qed_set_vf_link_state,
5260         .set_spoof = &qed_spoof_configure,
5261         .set_rate = &qed_set_vf_rate,
5262         .set_trust = &qed_set_vf_trust,
5263 };