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0001 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
0002 /* QLogic qed NIC Driver
0003  * Copyright (c) 2015-2017  QLogic Corporation
0004  * Copyright (c) 2019-2020 Marvell International Ltd.
0005  */
0006 
0007 #include <linux/etherdevice.h>
0008 #include <linux/crc32.h>
0009 #include <linux/vmalloc.h>
0010 #include <linux/crash_dump.h>
0011 #include <linux/qed/qed_iov_if.h>
0012 #include "qed_cxt.h"
0013 #include "qed_hsi.h"
0014 #include "qed_iro_hsi.h"
0015 #include "qed_hw.h"
0016 #include "qed_init_ops.h"
0017 #include "qed_int.h"
0018 #include "qed_mcp.h"
0019 #include "qed_reg_addr.h"
0020 #include "qed_sp.h"
0021 #include "qed_sriov.h"
0022 #include "qed_vf.h"
0023 static int qed_iov_bulletin_set_mac(struct qed_hwfn *p_hwfn, u8 *mac, int vfid);
0024 
0025 static u16 qed_vf_from_entity_id(__le16 entity_id)
0026 {
0027     return le16_to_cpu(entity_id) - MAX_NUM_PFS;
0028 }
0029 
0030 static u8 qed_vf_calculate_legacy(struct qed_vf_info *p_vf)
0031 {
0032     u8 legacy = 0;
0033 
0034     if (p_vf->acquire.vfdev_info.eth_fp_hsi_minor ==
0035         ETH_HSI_VER_NO_PKT_LEN_TUNN)
0036         legacy |= QED_QCID_LEGACY_VF_RX_PROD;
0037 
0038     if (!(p_vf->acquire.vfdev_info.capabilities &
0039           VFPF_ACQUIRE_CAP_QUEUE_QIDS))
0040         legacy |= QED_QCID_LEGACY_VF_CID;
0041 
0042     return legacy;
0043 }
0044 
0045 /* IOV ramrods */
0046 static int qed_sp_vf_start(struct qed_hwfn *p_hwfn, struct qed_vf_info *p_vf)
0047 {
0048     struct vf_start_ramrod_data *p_ramrod = NULL;
0049     struct qed_spq_entry *p_ent = NULL;
0050     struct qed_sp_init_data init_data;
0051     int rc = -EINVAL;
0052     u8 fp_minor;
0053 
0054     /* Get SPQ entry */
0055     memset(&init_data, 0, sizeof(init_data));
0056     init_data.cid = qed_spq_get_cid(p_hwfn);
0057     init_data.opaque_fid = p_vf->opaque_fid;
0058     init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
0059 
0060     rc = qed_sp_init_request(p_hwfn, &p_ent,
0061                  COMMON_RAMROD_VF_START,
0062                  PROTOCOLID_COMMON, &init_data);
0063     if (rc)
0064         return rc;
0065 
0066     p_ramrod = &p_ent->ramrod.vf_start;
0067 
0068     p_ramrod->vf_id = GET_FIELD(p_vf->concrete_fid, PXP_CONCRETE_FID_VFID);
0069     p_ramrod->opaque_fid = cpu_to_le16(p_vf->opaque_fid);
0070 
0071     switch (p_hwfn->hw_info.personality) {
0072     case QED_PCI_ETH:
0073         p_ramrod->personality = PERSONALITY_ETH;
0074         break;
0075     case QED_PCI_ETH_ROCE:
0076     case QED_PCI_ETH_IWARP:
0077         p_ramrod->personality = PERSONALITY_RDMA_AND_ETH;
0078         break;
0079     default:
0080         DP_NOTICE(p_hwfn, "Unknown VF personality %d\n",
0081               p_hwfn->hw_info.personality);
0082         qed_sp_destroy_request(p_hwfn, p_ent);
0083         return -EINVAL;
0084     }
0085 
0086     fp_minor = p_vf->acquire.vfdev_info.eth_fp_hsi_minor;
0087     if (fp_minor > ETH_HSI_VER_MINOR &&
0088         fp_minor != ETH_HSI_VER_NO_PKT_LEN_TUNN) {
0089         DP_VERBOSE(p_hwfn,
0090                QED_MSG_IOV,
0091                "VF [%d] - Requested fp hsi %02x.%02x which is slightly newer than PF's %02x.%02x; Configuring PFs version\n",
0092                p_vf->abs_vf_id,
0093                ETH_HSI_VER_MAJOR,
0094                fp_minor, ETH_HSI_VER_MAJOR, ETH_HSI_VER_MINOR);
0095         fp_minor = ETH_HSI_VER_MINOR;
0096     }
0097 
0098     p_ramrod->hsi_fp_ver.major_ver_arr[ETH_VER_KEY] = ETH_HSI_VER_MAJOR;
0099     p_ramrod->hsi_fp_ver.minor_ver_arr[ETH_VER_KEY] = fp_minor;
0100 
0101     DP_VERBOSE(p_hwfn, QED_MSG_IOV,
0102            "VF[%d] - Starting using HSI %02x.%02x\n",
0103            p_vf->abs_vf_id, ETH_HSI_VER_MAJOR, fp_minor);
0104 
0105     return qed_spq_post(p_hwfn, p_ent, NULL);
0106 }
0107 
0108 static int qed_sp_vf_stop(struct qed_hwfn *p_hwfn,
0109               u32 concrete_vfid, u16 opaque_vfid)
0110 {
0111     struct vf_stop_ramrod_data *p_ramrod = NULL;
0112     struct qed_spq_entry *p_ent = NULL;
0113     struct qed_sp_init_data init_data;
0114     int rc = -EINVAL;
0115 
0116     /* Get SPQ entry */
0117     memset(&init_data, 0, sizeof(init_data));
0118     init_data.cid = qed_spq_get_cid(p_hwfn);
0119     init_data.opaque_fid = opaque_vfid;
0120     init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
0121 
0122     rc = qed_sp_init_request(p_hwfn, &p_ent,
0123                  COMMON_RAMROD_VF_STOP,
0124                  PROTOCOLID_COMMON, &init_data);
0125     if (rc)
0126         return rc;
0127 
0128     p_ramrod = &p_ent->ramrod.vf_stop;
0129 
0130     p_ramrod->vf_id = GET_FIELD(concrete_vfid, PXP_CONCRETE_FID_VFID);
0131 
0132     return qed_spq_post(p_hwfn, p_ent, NULL);
0133 }
0134 
0135 bool qed_iov_is_valid_vfid(struct qed_hwfn *p_hwfn,
0136                int rel_vf_id,
0137                bool b_enabled_only, bool b_non_malicious)
0138 {
0139     if (!p_hwfn->pf_iov_info) {
0140         DP_NOTICE(p_hwfn->cdev, "No iov info\n");
0141         return false;
0142     }
0143 
0144     if ((rel_vf_id >= p_hwfn->cdev->p_iov_info->total_vfs) ||
0145         (rel_vf_id < 0))
0146         return false;
0147 
0148     if ((!p_hwfn->pf_iov_info->vfs_array[rel_vf_id].b_init) &&
0149         b_enabled_only)
0150         return false;
0151 
0152     if ((p_hwfn->pf_iov_info->vfs_array[rel_vf_id].b_malicious) &&
0153         b_non_malicious)
0154         return false;
0155 
0156     return true;
0157 }
0158 
0159 static struct qed_vf_info *qed_iov_get_vf_info(struct qed_hwfn *p_hwfn,
0160                            u16 relative_vf_id,
0161                            bool b_enabled_only)
0162 {
0163     struct qed_vf_info *vf = NULL;
0164 
0165     if (!p_hwfn->pf_iov_info) {
0166         DP_NOTICE(p_hwfn->cdev, "No iov info\n");
0167         return NULL;
0168     }
0169 
0170     if (qed_iov_is_valid_vfid(p_hwfn, relative_vf_id,
0171                   b_enabled_only, false))
0172         vf = &p_hwfn->pf_iov_info->vfs_array[relative_vf_id];
0173     else
0174         DP_ERR(p_hwfn, "%s: VF[%d] is not enabled\n",
0175                __func__, relative_vf_id);
0176 
0177     return vf;
0178 }
0179 
0180 static struct qed_queue_cid *
0181 qed_iov_get_vf_rx_queue_cid(struct qed_vf_queue *p_queue)
0182 {
0183     int i;
0184 
0185     for (i = 0; i < MAX_QUEUES_PER_QZONE; i++) {
0186         if (p_queue->cids[i].p_cid && !p_queue->cids[i].b_is_tx)
0187             return p_queue->cids[i].p_cid;
0188     }
0189 
0190     return NULL;
0191 }
0192 
0193 enum qed_iov_validate_q_mode {
0194     QED_IOV_VALIDATE_Q_NA,
0195     QED_IOV_VALIDATE_Q_ENABLE,
0196     QED_IOV_VALIDATE_Q_DISABLE,
0197 };
0198 
0199 static bool qed_iov_validate_queue_mode(struct qed_hwfn *p_hwfn,
0200                     struct qed_vf_info *p_vf,
0201                     u16 qid,
0202                     enum qed_iov_validate_q_mode mode,
0203                     bool b_is_tx)
0204 {
0205     int i;
0206 
0207     if (mode == QED_IOV_VALIDATE_Q_NA)
0208         return true;
0209 
0210     for (i = 0; i < MAX_QUEUES_PER_QZONE; i++) {
0211         struct qed_vf_queue_cid *p_qcid;
0212 
0213         p_qcid = &p_vf->vf_queues[qid].cids[i];
0214 
0215         if (!p_qcid->p_cid)
0216             continue;
0217 
0218         if (p_qcid->b_is_tx != b_is_tx)
0219             continue;
0220 
0221         return mode == QED_IOV_VALIDATE_Q_ENABLE;
0222     }
0223 
0224     /* In case we haven't found any valid cid, then its disabled */
0225     return mode == QED_IOV_VALIDATE_Q_DISABLE;
0226 }
0227 
0228 static bool qed_iov_validate_rxq(struct qed_hwfn *p_hwfn,
0229                  struct qed_vf_info *p_vf,
0230                  u16 rx_qid,
0231                  enum qed_iov_validate_q_mode mode)
0232 {
0233     if (rx_qid >= p_vf->num_rxqs) {
0234         DP_VERBOSE(p_hwfn,
0235                QED_MSG_IOV,
0236                "VF[0x%02x] - can't touch Rx queue[%04x]; Only 0x%04x are allocated\n",
0237                p_vf->abs_vf_id, rx_qid, p_vf->num_rxqs);
0238         return false;
0239     }
0240 
0241     return qed_iov_validate_queue_mode(p_hwfn, p_vf, rx_qid, mode, false);
0242 }
0243 
0244 static bool qed_iov_validate_txq(struct qed_hwfn *p_hwfn,
0245                  struct qed_vf_info *p_vf,
0246                  u16 tx_qid,
0247                  enum qed_iov_validate_q_mode mode)
0248 {
0249     if (tx_qid >= p_vf->num_txqs) {
0250         DP_VERBOSE(p_hwfn,
0251                QED_MSG_IOV,
0252                "VF[0x%02x] - can't touch Tx queue[%04x]; Only 0x%04x are allocated\n",
0253                p_vf->abs_vf_id, tx_qid, p_vf->num_txqs);
0254         return false;
0255     }
0256 
0257     return qed_iov_validate_queue_mode(p_hwfn, p_vf, tx_qid, mode, true);
0258 }
0259 
0260 static bool qed_iov_validate_sb(struct qed_hwfn *p_hwfn,
0261                 struct qed_vf_info *p_vf, u16 sb_idx)
0262 {
0263     int i;
0264 
0265     for (i = 0; i < p_vf->num_sbs; i++)
0266         if (p_vf->igu_sbs[i] == sb_idx)
0267             return true;
0268 
0269     DP_VERBOSE(p_hwfn,
0270            QED_MSG_IOV,
0271            "VF[0%02x] - tried using sb_idx %04x which doesn't exist as one of its 0x%02x SBs\n",
0272            p_vf->abs_vf_id, sb_idx, p_vf->num_sbs);
0273 
0274     return false;
0275 }
0276 
0277 static bool qed_iov_validate_active_rxq(struct qed_hwfn *p_hwfn,
0278                     struct qed_vf_info *p_vf)
0279 {
0280     u8 i;
0281 
0282     for (i = 0; i < p_vf->num_rxqs; i++)
0283         if (qed_iov_validate_queue_mode(p_hwfn, p_vf, i,
0284                         QED_IOV_VALIDATE_Q_ENABLE,
0285                         false))
0286             return true;
0287 
0288     return false;
0289 }
0290 
0291 static bool qed_iov_validate_active_txq(struct qed_hwfn *p_hwfn,
0292                     struct qed_vf_info *p_vf)
0293 {
0294     u8 i;
0295 
0296     for (i = 0; i < p_vf->num_txqs; i++)
0297         if (qed_iov_validate_queue_mode(p_hwfn, p_vf, i,
0298                         QED_IOV_VALIDATE_Q_ENABLE,
0299                         true))
0300             return true;
0301 
0302     return false;
0303 }
0304 
0305 static int qed_iov_post_vf_bulletin(struct qed_hwfn *p_hwfn,
0306                     int vfid, struct qed_ptt *p_ptt)
0307 {
0308     struct qed_bulletin_content *p_bulletin;
0309     int crc_size = sizeof(p_bulletin->crc);
0310     struct qed_dmae_params params;
0311     struct qed_vf_info *p_vf;
0312 
0313     p_vf = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
0314     if (!p_vf)
0315         return -EINVAL;
0316 
0317     if (!p_vf->vf_bulletin)
0318         return -EINVAL;
0319 
0320     p_bulletin = p_vf->bulletin.p_virt;
0321 
0322     /* Increment bulletin board version and compute crc */
0323     p_bulletin->version++;
0324     p_bulletin->crc = crc32(0, (u8 *)p_bulletin + crc_size,
0325                 p_vf->bulletin.size - crc_size);
0326 
0327     DP_VERBOSE(p_hwfn, QED_MSG_IOV,
0328            "Posting Bulletin 0x%08x to VF[%d] (CRC 0x%08x)\n",
0329            p_bulletin->version, p_vf->relative_vf_id, p_bulletin->crc);
0330 
0331     /* propagate bulletin board via dmae to vm memory */
0332     memset(&params, 0, sizeof(params));
0333     SET_FIELD(params.flags, QED_DMAE_PARAMS_DST_VF_VALID, 0x1);
0334     params.dst_vfid = p_vf->abs_vf_id;
0335     return qed_dmae_host2host(p_hwfn, p_ptt, p_vf->bulletin.phys,
0336                   p_vf->vf_bulletin, p_vf->bulletin.size / 4,
0337                   &params);
0338 }
0339 
0340 static int qed_iov_pci_cfg_info(struct qed_dev *cdev)
0341 {
0342     struct qed_hw_sriov_info *iov = cdev->p_iov_info;
0343     int pos = iov->pos;
0344 
0345     DP_VERBOSE(cdev, QED_MSG_IOV, "sriov ext pos %d\n", pos);
0346     pci_read_config_word(cdev->pdev, pos + PCI_SRIOV_CTRL, &iov->ctrl);
0347 
0348     pci_read_config_word(cdev->pdev,
0349                  pos + PCI_SRIOV_TOTAL_VF, &iov->total_vfs);
0350     pci_read_config_word(cdev->pdev,
0351                  pos + PCI_SRIOV_INITIAL_VF, &iov->initial_vfs);
0352 
0353     pci_read_config_word(cdev->pdev, pos + PCI_SRIOV_NUM_VF, &iov->num_vfs);
0354     if (iov->num_vfs) {
0355         DP_VERBOSE(cdev,
0356                QED_MSG_IOV,
0357                "Number of VFs are already set to non-zero value. Ignoring PCI configuration value\n");
0358         iov->num_vfs = 0;
0359     }
0360 
0361     pci_read_config_word(cdev->pdev,
0362                  pos + PCI_SRIOV_VF_OFFSET, &iov->offset);
0363 
0364     pci_read_config_word(cdev->pdev,
0365                  pos + PCI_SRIOV_VF_STRIDE, &iov->stride);
0366 
0367     pci_read_config_word(cdev->pdev,
0368                  pos + PCI_SRIOV_VF_DID, &iov->vf_device_id);
0369 
0370     pci_read_config_dword(cdev->pdev,
0371                   pos + PCI_SRIOV_SUP_PGSIZE, &iov->pgsz);
0372 
0373     pci_read_config_dword(cdev->pdev, pos + PCI_SRIOV_CAP, &iov->cap);
0374 
0375     pci_read_config_byte(cdev->pdev, pos + PCI_SRIOV_FUNC_LINK, &iov->link);
0376 
0377     DP_VERBOSE(cdev,
0378            QED_MSG_IOV,
0379            "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",
0380            iov->nres,
0381            iov->cap,
0382            iov->ctrl,
0383            iov->total_vfs,
0384            iov->initial_vfs,
0385            iov->nr_virtfn, iov->offset, iov->stride, iov->pgsz);
0386 
0387     /* Some sanity checks */
0388     if (iov->num_vfs > NUM_OF_VFS(cdev) ||
0389         iov->total_vfs > NUM_OF_VFS(cdev)) {
0390         /* This can happen only due to a bug. In this case we set
0391          * num_vfs to zero to avoid memory corruption in the code that
0392          * assumes max number of vfs
0393          */
0394         DP_NOTICE(cdev,
0395               "IOV: Unexpected number of vfs set: %d setting num_vf to zero\n",
0396               iov->num_vfs);
0397 
0398         iov->num_vfs = 0;
0399         iov->total_vfs = 0;
0400     }
0401 
0402     return 0;
0403 }
0404 
0405 static void qed_iov_setup_vfdb(struct qed_hwfn *p_hwfn)
0406 {
0407     struct qed_hw_sriov_info *p_iov = p_hwfn->cdev->p_iov_info;
0408     struct qed_pf_iov *p_iov_info = p_hwfn->pf_iov_info;
0409     struct qed_bulletin_content *p_bulletin_virt;
0410     dma_addr_t req_p, rply_p, bulletin_p;
0411     union pfvf_tlvs *p_reply_virt_addr;
0412     union vfpf_tlvs *p_req_virt_addr;
0413     u8 idx = 0;
0414 
0415     memset(p_iov_info->vfs_array, 0, sizeof(p_iov_info->vfs_array));
0416 
0417     p_req_virt_addr = p_iov_info->mbx_msg_virt_addr;
0418     req_p = p_iov_info->mbx_msg_phys_addr;
0419     p_reply_virt_addr = p_iov_info->mbx_reply_virt_addr;
0420     rply_p = p_iov_info->mbx_reply_phys_addr;
0421     p_bulletin_virt = p_iov_info->p_bulletins;
0422     bulletin_p = p_iov_info->bulletins_phys;
0423     if (!p_req_virt_addr || !p_reply_virt_addr || !p_bulletin_virt) {
0424         DP_ERR(p_hwfn,
0425                "%s called without allocating mem first\n", __func__);
0426         return;
0427     }
0428 
0429     for (idx = 0; idx < p_iov->total_vfs; idx++) {
0430         struct qed_vf_info *vf = &p_iov_info->vfs_array[idx];
0431         u32 concrete;
0432 
0433         vf->vf_mbx.req_virt = p_req_virt_addr + idx;
0434         vf->vf_mbx.req_phys = req_p + idx * sizeof(union vfpf_tlvs);
0435         vf->vf_mbx.reply_virt = p_reply_virt_addr + idx;
0436         vf->vf_mbx.reply_phys = rply_p + idx * sizeof(union pfvf_tlvs);
0437 
0438         vf->state = VF_STOPPED;
0439         vf->b_init = false;
0440 
0441         vf->bulletin.phys = idx *
0442                     sizeof(struct qed_bulletin_content) +
0443                     bulletin_p;
0444         vf->bulletin.p_virt = p_bulletin_virt + idx;
0445         vf->bulletin.size = sizeof(struct qed_bulletin_content);
0446 
0447         vf->relative_vf_id = idx;
0448         vf->abs_vf_id = idx + p_iov->first_vf_in_pf;
0449         concrete = qed_vfid_to_concrete(p_hwfn, vf->abs_vf_id);
0450         vf->concrete_fid = concrete;
0451         vf->opaque_fid = (p_hwfn->hw_info.opaque_fid & 0xff) |
0452                  (vf->abs_vf_id << 8);
0453         vf->vport_id = idx + 1;
0454 
0455         vf->num_mac_filters = QED_ETH_VF_NUM_MAC_FILTERS;
0456         vf->num_vlan_filters = QED_ETH_VF_NUM_VLAN_FILTERS;
0457     }
0458 }
0459 
0460 static int qed_iov_allocate_vfdb(struct qed_hwfn *p_hwfn)
0461 {
0462     struct qed_pf_iov *p_iov_info = p_hwfn->pf_iov_info;
0463     void **p_v_addr;
0464     u16 num_vfs = 0;
0465 
0466     num_vfs = p_hwfn->cdev->p_iov_info->total_vfs;
0467 
0468     DP_VERBOSE(p_hwfn, QED_MSG_IOV,
0469            "%s for %d VFs\n", __func__, num_vfs);
0470 
0471     /* Allocate PF Mailbox buffer (per-VF) */
0472     p_iov_info->mbx_msg_size = sizeof(union vfpf_tlvs) * num_vfs;
0473     p_v_addr = &p_iov_info->mbx_msg_virt_addr;
0474     *p_v_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
0475                        p_iov_info->mbx_msg_size,
0476                        &p_iov_info->mbx_msg_phys_addr,
0477                        GFP_KERNEL);
0478     if (!*p_v_addr)
0479         return -ENOMEM;
0480 
0481     /* Allocate PF Mailbox Reply buffer (per-VF) */
0482     p_iov_info->mbx_reply_size = sizeof(union pfvf_tlvs) * num_vfs;
0483     p_v_addr = &p_iov_info->mbx_reply_virt_addr;
0484     *p_v_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
0485                        p_iov_info->mbx_reply_size,
0486                        &p_iov_info->mbx_reply_phys_addr,
0487                        GFP_KERNEL);
0488     if (!*p_v_addr)
0489         return -ENOMEM;
0490 
0491     p_iov_info->bulletins_size = sizeof(struct qed_bulletin_content) *
0492                      num_vfs;
0493     p_v_addr = &p_iov_info->p_bulletins;
0494     *p_v_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
0495                        p_iov_info->bulletins_size,
0496                        &p_iov_info->bulletins_phys,
0497                        GFP_KERNEL);
0498     if (!*p_v_addr)
0499         return -ENOMEM;
0500 
0501     DP_VERBOSE(p_hwfn,
0502            QED_MSG_IOV,
0503            "PF's Requests mailbox [%p virt 0x%llx phys],  Response mailbox [%p virt 0x%llx phys] Bulletins [%p virt 0x%llx phys]\n",
0504            p_iov_info->mbx_msg_virt_addr,
0505            (u64)p_iov_info->mbx_msg_phys_addr,
0506            p_iov_info->mbx_reply_virt_addr,
0507            (u64)p_iov_info->mbx_reply_phys_addr,
0508            p_iov_info->p_bulletins, (u64)p_iov_info->bulletins_phys);
0509 
0510     return 0;
0511 }
0512 
0513 static void qed_iov_free_vfdb(struct qed_hwfn *p_hwfn)
0514 {
0515     struct qed_pf_iov *p_iov_info = p_hwfn->pf_iov_info;
0516 
0517     if (p_hwfn->pf_iov_info->mbx_msg_virt_addr)
0518         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
0519                   p_iov_info->mbx_msg_size,
0520                   p_iov_info->mbx_msg_virt_addr,
0521                   p_iov_info->mbx_msg_phys_addr);
0522 
0523     if (p_hwfn->pf_iov_info->mbx_reply_virt_addr)
0524         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
0525                   p_iov_info->mbx_reply_size,
0526                   p_iov_info->mbx_reply_virt_addr,
0527                   p_iov_info->mbx_reply_phys_addr);
0528 
0529     if (p_iov_info->p_bulletins)
0530         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
0531                   p_iov_info->bulletins_size,
0532                   p_iov_info->p_bulletins,
0533                   p_iov_info->bulletins_phys);
0534 }
0535 
0536 int qed_iov_alloc(struct qed_hwfn *p_hwfn)
0537 {
0538     struct qed_pf_iov *p_sriov;
0539 
0540     if (!IS_PF_SRIOV(p_hwfn)) {
0541         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
0542                "No SR-IOV - no need for IOV db\n");
0543         return 0;
0544     }
0545 
0546     p_sriov = kzalloc(sizeof(*p_sriov), GFP_KERNEL);
0547     if (!p_sriov)
0548         return -ENOMEM;
0549 
0550     p_hwfn->pf_iov_info = p_sriov;
0551 
0552     qed_spq_register_async_cb(p_hwfn, PROTOCOLID_COMMON,
0553                   qed_sriov_eqe_event);
0554 
0555     return qed_iov_allocate_vfdb(p_hwfn);
0556 }
0557 
0558 void qed_iov_setup(struct qed_hwfn *p_hwfn)
0559 {
0560     if (!IS_PF_SRIOV(p_hwfn) || !IS_PF_SRIOV_ALLOC(p_hwfn))
0561         return;
0562 
0563     qed_iov_setup_vfdb(p_hwfn);
0564 }
0565 
0566 void qed_iov_free(struct qed_hwfn *p_hwfn)
0567 {
0568     qed_spq_unregister_async_cb(p_hwfn, PROTOCOLID_COMMON);
0569 
0570     if (IS_PF_SRIOV_ALLOC(p_hwfn)) {
0571         qed_iov_free_vfdb(p_hwfn);
0572         kfree(p_hwfn->pf_iov_info);
0573     }
0574 }
0575 
0576 void qed_iov_free_hw_info(struct qed_dev *cdev)
0577 {
0578     kfree(cdev->p_iov_info);
0579     cdev->p_iov_info = NULL;
0580 }
0581 
0582 int qed_iov_hw_info(struct qed_hwfn *p_hwfn)
0583 {
0584     struct qed_dev *cdev = p_hwfn->cdev;
0585     int pos;
0586     int rc;
0587 
0588     if (is_kdump_kernel())
0589         return 0;
0590 
0591     if (IS_VF(p_hwfn->cdev))
0592         return 0;
0593 
0594     /* Learn the PCI configuration */
0595     pos = pci_find_ext_capability(p_hwfn->cdev->pdev,
0596                       PCI_EXT_CAP_ID_SRIOV);
0597     if (!pos) {
0598         DP_VERBOSE(p_hwfn, QED_MSG_IOV, "No PCIe IOV support\n");
0599         return 0;
0600     }
0601 
0602     /* Allocate a new struct for IOV information */
0603     cdev->p_iov_info = kzalloc(sizeof(*cdev->p_iov_info), GFP_KERNEL);
0604     if (!cdev->p_iov_info)
0605         return -ENOMEM;
0606 
0607     cdev->p_iov_info->pos = pos;
0608 
0609     rc = qed_iov_pci_cfg_info(cdev);
0610     if (rc)
0611         return rc;
0612 
0613     /* We want PF IOV to be synonemous with the existence of p_iov_info;
0614      * In case the capability is published but there are no VFs, simply
0615      * de-allocate the struct.
0616      */
0617     if (!cdev->p_iov_info->total_vfs) {
0618         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
0619                "IOV capabilities, but no VFs are published\n");
0620         kfree(cdev->p_iov_info);
0621         cdev->p_iov_info = NULL;
0622         return 0;
0623     }
0624 
0625     /* First VF index based on offset is tricky:
0626      *  - If ARI is supported [likely], offset - (16 - pf_id) would
0627      *    provide the number for eng0. 2nd engine Vfs would begin
0628      *    after the first engine's VFs.
0629      *  - If !ARI, VFs would start on next device.
0630      *    so offset - (256 - pf_id) would provide the number.
0631      * Utilize the fact that (256 - pf_id) is achieved only by later
0632      * to differentiate between the two.
0633      */
0634 
0635     if (p_hwfn->cdev->p_iov_info->offset < (256 - p_hwfn->abs_pf_id)) {
0636         u32 first = p_hwfn->cdev->p_iov_info->offset +
0637                 p_hwfn->abs_pf_id - 16;
0638 
0639         cdev->p_iov_info->first_vf_in_pf = first;
0640 
0641         if (QED_PATH_ID(p_hwfn))
0642             cdev->p_iov_info->first_vf_in_pf -= MAX_NUM_VFS_BB;
0643     } else {
0644         u32 first = p_hwfn->cdev->p_iov_info->offset +
0645                 p_hwfn->abs_pf_id - 256;
0646 
0647         cdev->p_iov_info->first_vf_in_pf = first;
0648     }
0649 
0650     DP_VERBOSE(p_hwfn, QED_MSG_IOV,
0651            "First VF in hwfn 0x%08x\n",
0652            cdev->p_iov_info->first_vf_in_pf);
0653 
0654     return 0;
0655 }
0656 
0657 static bool _qed_iov_pf_sanity_check(struct qed_hwfn *p_hwfn,
0658                      int vfid, bool b_fail_malicious)
0659 {
0660     /* Check PF supports sriov */
0661     if (IS_VF(p_hwfn->cdev) || !IS_QED_SRIOV(p_hwfn->cdev) ||
0662         !IS_PF_SRIOV_ALLOC(p_hwfn))
0663         return false;
0664 
0665     /* Check VF validity */
0666     if (!qed_iov_is_valid_vfid(p_hwfn, vfid, true, b_fail_malicious))
0667         return false;
0668 
0669     return true;
0670 }
0671 
0672 static bool qed_iov_pf_sanity_check(struct qed_hwfn *p_hwfn, int vfid)
0673 {
0674     return _qed_iov_pf_sanity_check(p_hwfn, vfid, true);
0675 }
0676 
0677 static void qed_iov_set_vf_to_disable(struct qed_dev *cdev,
0678                       u16 rel_vf_id, u8 to_disable)
0679 {
0680     struct qed_vf_info *vf;
0681     int i;
0682 
0683     for_each_hwfn(cdev, i) {
0684         struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
0685 
0686         vf = qed_iov_get_vf_info(p_hwfn, rel_vf_id, false);
0687         if (!vf)
0688             continue;
0689 
0690         vf->to_disable = to_disable;
0691     }
0692 }
0693 
0694 static void qed_iov_set_vfs_to_disable(struct qed_dev *cdev, u8 to_disable)
0695 {
0696     u16 i;
0697 
0698     if (!IS_QED_SRIOV(cdev))
0699         return;
0700 
0701     for (i = 0; i < cdev->p_iov_info->total_vfs; i++)
0702         qed_iov_set_vf_to_disable(cdev, i, to_disable);
0703 }
0704 
0705 static void qed_iov_vf_pglue_clear_err(struct qed_hwfn *p_hwfn,
0706                        struct qed_ptt *p_ptt, u8 abs_vfid)
0707 {
0708     qed_wr(p_hwfn, p_ptt,
0709            PGLUE_B_REG_WAS_ERROR_VF_31_0_CLR + (abs_vfid >> 5) * 4,
0710            1 << (abs_vfid & 0x1f));
0711 }
0712 
0713 static void qed_iov_vf_igu_reset(struct qed_hwfn *p_hwfn,
0714                  struct qed_ptt *p_ptt, struct qed_vf_info *vf)
0715 {
0716     int i;
0717 
0718     /* Set VF masks and configuration - pretend */
0719     qed_fid_pretend(p_hwfn, p_ptt, (u16)vf->concrete_fid);
0720 
0721     qed_wr(p_hwfn, p_ptt, IGU_REG_STATISTIC_NUM_VF_MSG_SENT, 0);
0722 
0723     /* unpretend */
0724     qed_fid_pretend(p_hwfn, p_ptt, (u16)p_hwfn->hw_info.concrete_fid);
0725 
0726     /* iterate over all queues, clear sb consumer */
0727     for (i = 0; i < vf->num_sbs; i++)
0728         qed_int_igu_init_pure_rt_single(p_hwfn, p_ptt,
0729                         vf->igu_sbs[i],
0730                         vf->opaque_fid, true);
0731 }
0732 
0733 static void qed_iov_vf_igu_set_int(struct qed_hwfn *p_hwfn,
0734                    struct qed_ptt *p_ptt,
0735                    struct qed_vf_info *vf, bool enable)
0736 {
0737     u32 igu_vf_conf;
0738 
0739     qed_fid_pretend(p_hwfn, p_ptt, (u16)vf->concrete_fid);
0740 
0741     igu_vf_conf = qed_rd(p_hwfn, p_ptt, IGU_REG_VF_CONFIGURATION);
0742 
0743     if (enable)
0744         igu_vf_conf |= IGU_VF_CONF_MSI_MSIX_EN;
0745     else
0746         igu_vf_conf &= ~IGU_VF_CONF_MSI_MSIX_EN;
0747 
0748     qed_wr(p_hwfn, p_ptt, IGU_REG_VF_CONFIGURATION, igu_vf_conf);
0749 
0750     /* unpretend */
0751     qed_fid_pretend(p_hwfn, p_ptt, (u16)p_hwfn->hw_info.concrete_fid);
0752 }
0753 
0754 static int
0755 qed_iov_enable_vf_access_msix(struct qed_hwfn *p_hwfn,
0756                   struct qed_ptt *p_ptt, u8 abs_vf_id, u8 num_sbs)
0757 {
0758     u8 current_max = 0;
0759     int i;
0760 
0761     /* For AH onward, configuration is per-PF. Find maximum of all
0762      * the currently enabled child VFs, and set the number to be that.
0763      */
0764     if (!QED_IS_BB(p_hwfn->cdev)) {
0765         qed_for_each_vf(p_hwfn, i) {
0766             struct qed_vf_info *p_vf;
0767 
0768             p_vf = qed_iov_get_vf_info(p_hwfn, (u16)i, true);
0769             if (!p_vf)
0770                 continue;
0771 
0772             current_max = max_t(u8, current_max, p_vf->num_sbs);
0773         }
0774     }
0775 
0776     if (num_sbs > current_max)
0777         return qed_mcp_config_vf_msix(p_hwfn, p_ptt,
0778                           abs_vf_id, num_sbs);
0779 
0780     return 0;
0781 }
0782 
0783 static int qed_iov_enable_vf_access(struct qed_hwfn *p_hwfn,
0784                     struct qed_ptt *p_ptt,
0785                     struct qed_vf_info *vf)
0786 {
0787     u32 igu_vf_conf = IGU_VF_CONF_FUNC_EN;
0788     int rc;
0789 
0790     /* It's possible VF was previously considered malicious -
0791      * clear the indication even if we're only going to disable VF.
0792      */
0793     vf->b_malicious = false;
0794 
0795     if (vf->to_disable)
0796         return 0;
0797 
0798     DP_VERBOSE(p_hwfn,
0799            QED_MSG_IOV,
0800            "Enable internal access for vf %x [abs %x]\n",
0801            vf->abs_vf_id, QED_VF_ABS_ID(p_hwfn, vf));
0802 
0803     qed_iov_vf_pglue_clear_err(p_hwfn, p_ptt, QED_VF_ABS_ID(p_hwfn, vf));
0804 
0805     qed_iov_vf_igu_reset(p_hwfn, p_ptt, vf);
0806 
0807     rc = qed_iov_enable_vf_access_msix(p_hwfn, p_ptt,
0808                        vf->abs_vf_id, vf->num_sbs);
0809     if (rc)
0810         return rc;
0811 
0812     qed_fid_pretend(p_hwfn, p_ptt, (u16)vf->concrete_fid);
0813 
0814     SET_FIELD(igu_vf_conf, IGU_VF_CONF_PARENT, p_hwfn->rel_pf_id);
0815     STORE_RT_REG(p_hwfn, IGU_REG_VF_CONFIGURATION_RT_OFFSET, igu_vf_conf);
0816 
0817     qed_init_run(p_hwfn, p_ptt, PHASE_VF, vf->abs_vf_id,
0818              p_hwfn->hw_info.hw_mode);
0819 
0820     /* unpretend */
0821     qed_fid_pretend(p_hwfn, p_ptt, (u16)p_hwfn->hw_info.concrete_fid);
0822 
0823     vf->state = VF_FREE;
0824 
0825     return rc;
0826 }
0827 
0828 /**
0829  * qed_iov_config_perm_table() - Configure the permission zone table.
0830  *
0831  * @p_hwfn: HW device data.
0832  * @p_ptt: PTT window for writing the registers.
0833  * @vf: VF info data.
0834  * @enable: The actual permision for this VF.
0835  *
0836  * In E4, queue zone permission table size is 320x9. There
0837  * are 320 VF queues for single engine device (256 for dual
0838  * engine device), and each entry has the following format:
0839  * {Valid, VF[7:0]}
0840  */
0841 static void qed_iov_config_perm_table(struct qed_hwfn *p_hwfn,
0842                       struct qed_ptt *p_ptt,
0843                       struct qed_vf_info *vf, u8 enable)
0844 {
0845     u32 reg_addr, val;
0846     u16 qzone_id = 0;
0847     int qid;
0848 
0849     for (qid = 0; qid < vf->num_rxqs; qid++) {
0850         qed_fw_l2_queue(p_hwfn, vf->vf_queues[qid].fw_rx_qid,
0851                 &qzone_id);
0852 
0853         reg_addr = PSWHST_REG_ZONE_PERMISSION_TABLE + qzone_id * 4;
0854         val = enable ? (vf->abs_vf_id | BIT(8)) : 0;
0855         qed_wr(p_hwfn, p_ptt, reg_addr, val);
0856     }
0857 }
0858 
0859 static void qed_iov_enable_vf_traffic(struct qed_hwfn *p_hwfn,
0860                       struct qed_ptt *p_ptt,
0861                       struct qed_vf_info *vf)
0862 {
0863     /* Reset vf in IGU - interrupts are still disabled */
0864     qed_iov_vf_igu_reset(p_hwfn, p_ptt, vf);
0865 
0866     qed_iov_vf_igu_set_int(p_hwfn, p_ptt, vf, 1);
0867 
0868     /* Permission Table */
0869     qed_iov_config_perm_table(p_hwfn, p_ptt, vf, true);
0870 }
0871 
0872 static u8 qed_iov_alloc_vf_igu_sbs(struct qed_hwfn *p_hwfn,
0873                    struct qed_ptt *p_ptt,
0874                    struct qed_vf_info *vf, u16 num_rx_queues)
0875 {
0876     struct qed_igu_block *p_block;
0877     struct cau_sb_entry sb_entry;
0878     int qid = 0;
0879     u32 val = 0;
0880 
0881     if (num_rx_queues > p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov)
0882         num_rx_queues = p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov;
0883     p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov -= num_rx_queues;
0884 
0885     SET_FIELD(val, IGU_MAPPING_LINE_FUNCTION_NUMBER, vf->abs_vf_id);
0886     SET_FIELD(val, IGU_MAPPING_LINE_VALID, 1);
0887     SET_FIELD(val, IGU_MAPPING_LINE_PF_VALID, 0);
0888 
0889     for (qid = 0; qid < num_rx_queues; qid++) {
0890         p_block = qed_get_igu_free_sb(p_hwfn, false);
0891         vf->igu_sbs[qid] = p_block->igu_sb_id;
0892         p_block->status &= ~QED_IGU_STATUS_FREE;
0893         SET_FIELD(val, IGU_MAPPING_LINE_VECTOR_NUMBER, qid);
0894 
0895         qed_wr(p_hwfn, p_ptt,
0896                IGU_REG_MAPPING_MEMORY +
0897                sizeof(u32) * p_block->igu_sb_id, val);
0898 
0899         /* Configure igu sb in CAU which were marked valid */
0900         qed_init_cau_sb_entry(p_hwfn, &sb_entry,
0901                       p_hwfn->rel_pf_id, vf->abs_vf_id, 1);
0902 
0903         qed_dmae_host2grc(p_hwfn, p_ptt,
0904                   (u64)(uintptr_t)&sb_entry,
0905                   CAU_REG_SB_VAR_MEMORY +
0906                   p_block->igu_sb_id * sizeof(u64), 2, NULL);
0907     }
0908 
0909     vf->num_sbs = (u8)num_rx_queues;
0910 
0911     return vf->num_sbs;
0912 }
0913 
0914 static void qed_iov_free_vf_igu_sbs(struct qed_hwfn *p_hwfn,
0915                     struct qed_ptt *p_ptt,
0916                     struct qed_vf_info *vf)
0917 {
0918     struct qed_igu_info *p_info = p_hwfn->hw_info.p_igu_info;
0919     int idx, igu_id;
0920     u32 addr, val;
0921 
0922     /* Invalidate igu CAM lines and mark them as free */
0923     for (idx = 0; idx < vf->num_sbs; idx++) {
0924         igu_id = vf->igu_sbs[idx];
0925         addr = IGU_REG_MAPPING_MEMORY + sizeof(u32) * igu_id;
0926 
0927         val = qed_rd(p_hwfn, p_ptt, addr);
0928         SET_FIELD(val, IGU_MAPPING_LINE_VALID, 0);
0929         qed_wr(p_hwfn, p_ptt, addr, val);
0930 
0931         p_info->entry[igu_id].status |= QED_IGU_STATUS_FREE;
0932         p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov++;
0933     }
0934 
0935     vf->num_sbs = 0;
0936 }
0937 
0938 static void qed_iov_set_link(struct qed_hwfn *p_hwfn,
0939                  u16 vfid,
0940                  struct qed_mcp_link_params *params,
0941                  struct qed_mcp_link_state *link,
0942                  struct qed_mcp_link_capabilities *p_caps)
0943 {
0944     struct qed_vf_info *p_vf = qed_iov_get_vf_info(p_hwfn,
0945                                vfid,
0946                                false);
0947     struct qed_bulletin_content *p_bulletin;
0948 
0949     if (!p_vf)
0950         return;
0951 
0952     p_bulletin = p_vf->bulletin.p_virt;
0953     p_bulletin->req_autoneg = params->speed.autoneg;
0954     p_bulletin->req_adv_speed = params->speed.advertised_speeds;
0955     p_bulletin->req_forced_speed = params->speed.forced_speed;
0956     p_bulletin->req_autoneg_pause = params->pause.autoneg;
0957     p_bulletin->req_forced_rx = params->pause.forced_rx;
0958     p_bulletin->req_forced_tx = params->pause.forced_tx;
0959     p_bulletin->req_loopback = params->loopback_mode;
0960 
0961     p_bulletin->link_up = link->link_up;
0962     p_bulletin->speed = link->speed;
0963     p_bulletin->full_duplex = link->full_duplex;
0964     p_bulletin->autoneg = link->an;
0965     p_bulletin->autoneg_complete = link->an_complete;
0966     p_bulletin->parallel_detection = link->parallel_detection;
0967     p_bulletin->pfc_enabled = link->pfc_enabled;
0968     p_bulletin->partner_adv_speed = link->partner_adv_speed;
0969     p_bulletin->partner_tx_flow_ctrl_en = link->partner_tx_flow_ctrl_en;
0970     p_bulletin->partner_rx_flow_ctrl_en = link->partner_rx_flow_ctrl_en;
0971     p_bulletin->partner_adv_pause = link->partner_adv_pause;
0972     p_bulletin->sfp_tx_fault = link->sfp_tx_fault;
0973 
0974     p_bulletin->capability_speed = p_caps->speed_capabilities;
0975 }
0976 
0977 static int qed_iov_init_hw_for_vf(struct qed_hwfn *p_hwfn,
0978                   struct qed_ptt *p_ptt,
0979                   struct qed_iov_vf_init_params *p_params)
0980 {
0981     struct qed_mcp_link_capabilities link_caps;
0982     struct qed_mcp_link_params link_params;
0983     struct qed_mcp_link_state link_state;
0984     u8 num_of_vf_avaiable_chains = 0;
0985     struct qed_vf_info *vf = NULL;
0986     u16 qid, num_irqs;
0987     int rc = 0;
0988     u32 cids;
0989     u8 i;
0990 
0991     vf = qed_iov_get_vf_info(p_hwfn, p_params->rel_vf_id, false);
0992     if (!vf) {
0993         DP_ERR(p_hwfn, "%s : vf is NULL\n", __func__);
0994         return -EINVAL;
0995     }
0996 
0997     if (vf->b_init) {
0998         DP_NOTICE(p_hwfn, "VF[%d] is already active.\n",
0999               p_params->rel_vf_id);
1000         return -EINVAL;
1001     }
1002 
1003     /* Perform sanity checking on the requested queue_id */
1004     for (i = 0; i < p_params->num_queues; i++) {
1005         u16 min_vf_qzone = FEAT_NUM(p_hwfn, QED_PF_L2_QUE);
1006         u16 max_vf_qzone = min_vf_qzone +
1007             FEAT_NUM(p_hwfn, QED_VF_L2_QUE) - 1;
1008 
1009         qid = p_params->req_rx_queue[i];
1010         if (qid < min_vf_qzone || qid > max_vf_qzone) {
1011             DP_NOTICE(p_hwfn,
1012                   "Can't enable Rx qid [%04x] for VF[%d]: qids [0x%04x,...,0x%04x] available\n",
1013                   qid,
1014                   p_params->rel_vf_id,
1015                   min_vf_qzone, max_vf_qzone);
1016             return -EINVAL;
1017         }
1018 
1019         qid = p_params->req_tx_queue[i];
1020         if (qid > max_vf_qzone) {
1021             DP_NOTICE(p_hwfn,
1022                   "Can't enable Tx qid [%04x] for VF[%d]: max qid 0x%04x\n",
1023                   qid, p_params->rel_vf_id, max_vf_qzone);
1024             return -EINVAL;
1025         }
1026 
1027         /* If client *really* wants, Tx qid can be shared with PF */
1028         if (qid < min_vf_qzone)
1029             DP_VERBOSE(p_hwfn,
1030                    QED_MSG_IOV,
1031                    "VF[%d] is using PF qid [0x%04x] for Txq[0x%02x]\n",
1032                    p_params->rel_vf_id, qid, i);
1033     }
1034 
1035     /* Limit number of queues according to number of CIDs */
1036     qed_cxt_get_proto_cid_count(p_hwfn, PROTOCOLID_ETH, &cids);
1037     DP_VERBOSE(p_hwfn,
1038            QED_MSG_IOV,
1039            "VF[%d] - requesting to initialize for 0x%04x queues [0x%04x CIDs available]\n",
1040            vf->relative_vf_id, p_params->num_queues, (u16)cids);
1041     num_irqs = min_t(u16, p_params->num_queues, ((u16)cids));
1042 
1043     num_of_vf_avaiable_chains = qed_iov_alloc_vf_igu_sbs(p_hwfn,
1044                                  p_ptt,
1045                                  vf, num_irqs);
1046     if (!num_of_vf_avaiable_chains) {
1047         DP_ERR(p_hwfn, "no available igu sbs\n");
1048         return -ENOMEM;
1049     }
1050 
1051     /* Choose queue number and index ranges */
1052     vf->num_rxqs = num_of_vf_avaiable_chains;
1053     vf->num_txqs = num_of_vf_avaiable_chains;
1054 
1055     for (i = 0; i < vf->num_rxqs; i++) {
1056         struct qed_vf_queue *p_queue = &vf->vf_queues[i];
1057 
1058         p_queue->fw_rx_qid = p_params->req_rx_queue[i];
1059         p_queue->fw_tx_qid = p_params->req_tx_queue[i];
1060 
1061         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1062                "VF[%d] - Q[%d] SB %04x, qid [Rx %04x Tx %04x]\n",
1063                vf->relative_vf_id, i, vf->igu_sbs[i],
1064                p_queue->fw_rx_qid, p_queue->fw_tx_qid);
1065     }
1066 
1067     /* Update the link configuration in bulletin */
1068     memcpy(&link_params, qed_mcp_get_link_params(p_hwfn),
1069            sizeof(link_params));
1070     memcpy(&link_state, qed_mcp_get_link_state(p_hwfn), sizeof(link_state));
1071     memcpy(&link_caps, qed_mcp_get_link_capabilities(p_hwfn),
1072            sizeof(link_caps));
1073     qed_iov_set_link(p_hwfn, p_params->rel_vf_id,
1074              &link_params, &link_state, &link_caps);
1075 
1076     rc = qed_iov_enable_vf_access(p_hwfn, p_ptt, vf);
1077     if (!rc) {
1078         vf->b_init = true;
1079 
1080         if (IS_LEAD_HWFN(p_hwfn))
1081             p_hwfn->cdev->p_iov_info->num_vfs++;
1082     }
1083 
1084     return rc;
1085 }
1086 
1087 static int qed_iov_release_hw_for_vf(struct qed_hwfn *p_hwfn,
1088                      struct qed_ptt *p_ptt, u16 rel_vf_id)
1089 {
1090     struct qed_mcp_link_capabilities caps;
1091     struct qed_mcp_link_params params;
1092     struct qed_mcp_link_state link;
1093     struct qed_vf_info *vf = NULL;
1094 
1095     vf = qed_iov_get_vf_info(p_hwfn, rel_vf_id, true);
1096     if (!vf) {
1097         DP_ERR(p_hwfn, "%s : vf is NULL\n", __func__);
1098         return -EINVAL;
1099     }
1100 
1101     if (vf->bulletin.p_virt)
1102         memset(vf->bulletin.p_virt, 0, sizeof(*vf->bulletin.p_virt));
1103 
1104     memset(&vf->p_vf_info, 0, sizeof(vf->p_vf_info));
1105 
1106     /* Get the link configuration back in bulletin so
1107      * that when VFs are re-enabled they get the actual
1108      * link configuration.
1109      */
1110     memcpy(&params, qed_mcp_get_link_params(p_hwfn), sizeof(params));
1111     memcpy(&link, qed_mcp_get_link_state(p_hwfn), sizeof(link));
1112     memcpy(&caps, qed_mcp_get_link_capabilities(p_hwfn), sizeof(caps));
1113     qed_iov_set_link(p_hwfn, rel_vf_id, &params, &link, &caps);
1114 
1115     /* Forget the VF's acquisition message */
1116     memset(&vf->acquire, 0, sizeof(vf->acquire));
1117 
1118     /* disablng interrupts and resetting permission table was done during
1119      * vf-close, however, we could get here without going through vf_close
1120      */
1121     /* Disable Interrupts for VF */
1122     qed_iov_vf_igu_set_int(p_hwfn, p_ptt, vf, 0);
1123 
1124     /* Reset Permission table */
1125     qed_iov_config_perm_table(p_hwfn, p_ptt, vf, 0);
1126 
1127     vf->num_rxqs = 0;
1128     vf->num_txqs = 0;
1129     qed_iov_free_vf_igu_sbs(p_hwfn, p_ptt, vf);
1130 
1131     if (vf->b_init) {
1132         vf->b_init = false;
1133 
1134         if (IS_LEAD_HWFN(p_hwfn))
1135             p_hwfn->cdev->p_iov_info->num_vfs--;
1136     }
1137 
1138     return 0;
1139 }
1140 
1141 static bool qed_iov_tlv_supported(u16 tlvtype)
1142 {
1143     return CHANNEL_TLV_NONE < tlvtype && tlvtype < CHANNEL_TLV_MAX;
1144 }
1145 
1146 /* place a given tlv on the tlv buffer, continuing current tlv list */
1147 void *qed_add_tlv(struct qed_hwfn *p_hwfn, u8 **offset, u16 type, u16 length)
1148 {
1149     struct channel_tlv *tl = (struct channel_tlv *)*offset;
1150 
1151     tl->type = type;
1152     tl->length = length;
1153 
1154     /* Offset should keep pointing to next TLV (the end of the last) */
1155     *offset += length;
1156 
1157     /* Return a pointer to the start of the added tlv */
1158     return *offset - length;
1159 }
1160 
1161 /* list the types and lengths of the tlvs on the buffer */
1162 void qed_dp_tlv_list(struct qed_hwfn *p_hwfn, void *tlvs_list)
1163 {
1164     u16 i = 1, total_length = 0;
1165     struct channel_tlv *tlv;
1166 
1167     do {
1168         tlv = (struct channel_tlv *)((u8 *)tlvs_list + total_length);
1169 
1170         /* output tlv */
1171         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1172                "TLV number %d: type %d, length %d\n",
1173                i, tlv->type, tlv->length);
1174 
1175         if (tlv->type == CHANNEL_TLV_LIST_END)
1176             return;
1177 
1178         /* Validate entry - protect against malicious VFs */
1179         if (!tlv->length) {
1180             DP_NOTICE(p_hwfn, "TLV of length 0 found\n");
1181             return;
1182         }
1183 
1184         total_length += tlv->length;
1185 
1186         if (total_length >= sizeof(struct tlv_buffer_size)) {
1187             DP_NOTICE(p_hwfn, "TLV ==> Buffer overflow\n");
1188             return;
1189         }
1190 
1191         i++;
1192     } while (1);
1193 }
1194 
1195 static void qed_iov_send_response(struct qed_hwfn *p_hwfn,
1196                   struct qed_ptt *p_ptt,
1197                   struct qed_vf_info *p_vf,
1198                   u16 length, u8 status)
1199 {
1200     struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
1201     struct qed_dmae_params params;
1202     u8 eng_vf_id;
1203 
1204     mbx->reply_virt->default_resp.hdr.status = status;
1205 
1206     qed_dp_tlv_list(p_hwfn, mbx->reply_virt);
1207 
1208     eng_vf_id = p_vf->abs_vf_id;
1209 
1210     memset(&params, 0, sizeof(params));
1211     SET_FIELD(params.flags, QED_DMAE_PARAMS_DST_VF_VALID, 0x1);
1212     params.dst_vfid = eng_vf_id;
1213 
1214     qed_dmae_host2host(p_hwfn, p_ptt, mbx->reply_phys + sizeof(u64),
1215                mbx->req_virt->first_tlv.reply_address +
1216                sizeof(u64),
1217                (sizeof(union pfvf_tlvs) - sizeof(u64)) / 4,
1218                &params);
1219 
1220     /* Once PF copies the rc to the VF, the latter can continue
1221      * and send an additional message. So we have to make sure the
1222      * channel would be re-set to ready prior to that.
1223      */
1224     REG_WR(p_hwfn,
1225            GET_GTT_REG_ADDR(GTT_BAR0_MAP_REG_USDM_RAM,
1226                 USTORM_VF_PF_CHANNEL_READY, eng_vf_id), 1);
1227 
1228     qed_dmae_host2host(p_hwfn, p_ptt, mbx->reply_phys,
1229                mbx->req_virt->first_tlv.reply_address,
1230                sizeof(u64) / 4, &params);
1231 }
1232 
1233 static u16 qed_iov_vport_to_tlv(struct qed_hwfn *p_hwfn,
1234                 enum qed_iov_vport_update_flag flag)
1235 {
1236     switch (flag) {
1237     case QED_IOV_VP_UPDATE_ACTIVATE:
1238         return CHANNEL_TLV_VPORT_UPDATE_ACTIVATE;
1239     case QED_IOV_VP_UPDATE_VLAN_STRIP:
1240         return CHANNEL_TLV_VPORT_UPDATE_VLAN_STRIP;
1241     case QED_IOV_VP_UPDATE_TX_SWITCH:
1242         return CHANNEL_TLV_VPORT_UPDATE_TX_SWITCH;
1243     case QED_IOV_VP_UPDATE_MCAST:
1244         return CHANNEL_TLV_VPORT_UPDATE_MCAST;
1245     case QED_IOV_VP_UPDATE_ACCEPT_PARAM:
1246         return CHANNEL_TLV_VPORT_UPDATE_ACCEPT_PARAM;
1247     case QED_IOV_VP_UPDATE_RSS:
1248         return CHANNEL_TLV_VPORT_UPDATE_RSS;
1249     case QED_IOV_VP_UPDATE_ACCEPT_ANY_VLAN:
1250         return CHANNEL_TLV_VPORT_UPDATE_ACCEPT_ANY_VLAN;
1251     case QED_IOV_VP_UPDATE_SGE_TPA:
1252         return CHANNEL_TLV_VPORT_UPDATE_SGE_TPA;
1253     default:
1254         return 0;
1255     }
1256 }
1257 
1258 static u16 qed_iov_prep_vp_update_resp_tlvs(struct qed_hwfn *p_hwfn,
1259                         struct qed_vf_info *p_vf,
1260                         struct qed_iov_vf_mbx *p_mbx,
1261                         u8 status,
1262                         u16 tlvs_mask, u16 tlvs_accepted)
1263 {
1264     struct pfvf_def_resp_tlv *resp;
1265     u16 size, total_len, i;
1266 
1267     memset(p_mbx->reply_virt, 0, sizeof(union pfvf_tlvs));
1268     p_mbx->offset = (u8 *)p_mbx->reply_virt;
1269     size = sizeof(struct pfvf_def_resp_tlv);
1270     total_len = size;
1271 
1272     qed_add_tlv(p_hwfn, &p_mbx->offset, CHANNEL_TLV_VPORT_UPDATE, size);
1273 
1274     /* Prepare response for all extended tlvs if they are found by PF */
1275     for (i = 0; i < QED_IOV_VP_UPDATE_MAX; i++) {
1276         if (!(tlvs_mask & BIT(i)))
1277             continue;
1278 
1279         resp = qed_add_tlv(p_hwfn, &p_mbx->offset,
1280                    qed_iov_vport_to_tlv(p_hwfn, i), size);
1281 
1282         if (tlvs_accepted & BIT(i))
1283             resp->hdr.status = status;
1284         else
1285             resp->hdr.status = PFVF_STATUS_NOT_SUPPORTED;
1286 
1287         DP_VERBOSE(p_hwfn,
1288                QED_MSG_IOV,
1289                "VF[%d] - vport_update response: TLV %d, status %02x\n",
1290                p_vf->relative_vf_id,
1291                qed_iov_vport_to_tlv(p_hwfn, i), resp->hdr.status);
1292 
1293         total_len += size;
1294     }
1295 
1296     qed_add_tlv(p_hwfn, &p_mbx->offset, CHANNEL_TLV_LIST_END,
1297             sizeof(struct channel_list_end_tlv));
1298 
1299     return total_len;
1300 }
1301 
1302 static void qed_iov_prepare_resp(struct qed_hwfn *p_hwfn,
1303                  struct qed_ptt *p_ptt,
1304                  struct qed_vf_info *vf_info,
1305                  u16 type, u16 length, u8 status)
1306 {
1307     struct qed_iov_vf_mbx *mbx = &vf_info->vf_mbx;
1308 
1309     mbx->offset = (u8 *)mbx->reply_virt;
1310 
1311     qed_add_tlv(p_hwfn, &mbx->offset, type, length);
1312     qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
1313             sizeof(struct channel_list_end_tlv));
1314 
1315     qed_iov_send_response(p_hwfn, p_ptt, vf_info, length, status);
1316 }
1317 
1318 static struct
1319 qed_public_vf_info *qed_iov_get_public_vf_info(struct qed_hwfn *p_hwfn,
1320                            u16 relative_vf_id,
1321                            bool b_enabled_only)
1322 {
1323     struct qed_vf_info *vf = NULL;
1324 
1325     vf = qed_iov_get_vf_info(p_hwfn, relative_vf_id, b_enabled_only);
1326     if (!vf)
1327         return NULL;
1328 
1329     return &vf->p_vf_info;
1330 }
1331 
1332 static void qed_iov_clean_vf(struct qed_hwfn *p_hwfn, u8 vfid)
1333 {
1334     struct qed_public_vf_info *vf_info;
1335 
1336     vf_info = qed_iov_get_public_vf_info(p_hwfn, vfid, false);
1337 
1338     if (!vf_info)
1339         return;
1340 
1341     /* Clear the VF mac */
1342     eth_zero_addr(vf_info->mac);
1343 
1344     vf_info->rx_accept_mode = 0;
1345     vf_info->tx_accept_mode = 0;
1346 }
1347 
1348 static void qed_iov_vf_cleanup(struct qed_hwfn *p_hwfn,
1349                    struct qed_vf_info *p_vf)
1350 {
1351     u32 i, j;
1352 
1353     p_vf->vf_bulletin = 0;
1354     p_vf->vport_instance = 0;
1355     p_vf->configured_features = 0;
1356 
1357     /* If VF previously requested less resources, go back to default */
1358     p_vf->num_rxqs = p_vf->num_sbs;
1359     p_vf->num_txqs = p_vf->num_sbs;
1360 
1361     p_vf->num_active_rxqs = 0;
1362 
1363     for (i = 0; i < QED_MAX_VF_CHAINS_PER_PF; i++) {
1364         struct qed_vf_queue *p_queue = &p_vf->vf_queues[i];
1365 
1366         for (j = 0; j < MAX_QUEUES_PER_QZONE; j++) {
1367             if (!p_queue->cids[j].p_cid)
1368                 continue;
1369 
1370             qed_eth_queue_cid_release(p_hwfn,
1371                           p_queue->cids[j].p_cid);
1372             p_queue->cids[j].p_cid = NULL;
1373         }
1374     }
1375 
1376     memset(&p_vf->shadow_config, 0, sizeof(p_vf->shadow_config));
1377     memset(&p_vf->acquire, 0, sizeof(p_vf->acquire));
1378     qed_iov_clean_vf(p_hwfn, p_vf->relative_vf_id);
1379 }
1380 
1381 /* Returns either 0, or log(size) */
1382 static u32 qed_iov_vf_db_bar_size(struct qed_hwfn *p_hwfn,
1383                   struct qed_ptt *p_ptt)
1384 {
1385     u32 val = qed_rd(p_hwfn, p_ptt, PGLUE_B_REG_VF_BAR1_SIZE);
1386 
1387     if (val)
1388         return val + 11;
1389     return 0;
1390 }
1391 
1392 static void
1393 qed_iov_vf_mbx_acquire_resc_cids(struct qed_hwfn *p_hwfn,
1394                  struct qed_ptt *p_ptt,
1395                  struct qed_vf_info *p_vf,
1396                  struct vf_pf_resc_request *p_req,
1397                  struct pf_vf_resc *p_resp)
1398 {
1399     u8 num_vf_cons = p_hwfn->pf_params.eth_pf_params.num_vf_cons;
1400     u8 db_size = qed_db_addr_vf(1, DQ_DEMS_LEGACY) -
1401              qed_db_addr_vf(0, DQ_DEMS_LEGACY);
1402     u32 bar_size;
1403 
1404     p_resp->num_cids = min_t(u8, p_req->num_cids, num_vf_cons);
1405 
1406     /* If VF didn't bother asking for QIDs than don't bother limiting
1407      * number of CIDs. The VF doesn't care about the number, and this
1408      * has the likely result of causing an additional acquisition.
1409      */
1410     if (!(p_vf->acquire.vfdev_info.capabilities &
1411           VFPF_ACQUIRE_CAP_QUEUE_QIDS))
1412         return;
1413 
1414     /* If doorbell bar was mapped by VF, limit the VF CIDs to an amount
1415      * that would make sure doorbells for all CIDs fall within the bar.
1416      * If it doesn't, make sure regview window is sufficient.
1417      */
1418     if (p_vf->acquire.vfdev_info.capabilities &
1419         VFPF_ACQUIRE_CAP_PHYSICAL_BAR) {
1420         bar_size = qed_iov_vf_db_bar_size(p_hwfn, p_ptt);
1421         if (bar_size)
1422             bar_size = 1 << bar_size;
1423 
1424         if (p_hwfn->cdev->num_hwfns > 1)
1425             bar_size /= 2;
1426     } else {
1427         bar_size = PXP_VF_BAR0_DQ_LENGTH;
1428     }
1429 
1430     if (bar_size / db_size < 256)
1431         p_resp->num_cids = min_t(u8, p_resp->num_cids,
1432                      (u8)(bar_size / db_size));
1433 }
1434 
1435 static u8 qed_iov_vf_mbx_acquire_resc(struct qed_hwfn *p_hwfn,
1436                       struct qed_ptt *p_ptt,
1437                       struct qed_vf_info *p_vf,
1438                       struct vf_pf_resc_request *p_req,
1439                       struct pf_vf_resc *p_resp)
1440 {
1441     u8 i;
1442 
1443     /* Queue related information */
1444     p_resp->num_rxqs = p_vf->num_rxqs;
1445     p_resp->num_txqs = p_vf->num_txqs;
1446     p_resp->num_sbs = p_vf->num_sbs;
1447 
1448     for (i = 0; i < p_resp->num_sbs; i++) {
1449         p_resp->hw_sbs[i].hw_sb_id = p_vf->igu_sbs[i];
1450         p_resp->hw_sbs[i].sb_qid = 0;
1451     }
1452 
1453     /* These fields are filled for backward compatibility.
1454      * Unused by modern vfs.
1455      */
1456     for (i = 0; i < p_resp->num_rxqs; i++) {
1457         qed_fw_l2_queue(p_hwfn, p_vf->vf_queues[i].fw_rx_qid,
1458                 (u16 *)&p_resp->hw_qid[i]);
1459         p_resp->cid[i] = i;
1460     }
1461 
1462     /* Filter related information */
1463     p_resp->num_mac_filters = min_t(u8, p_vf->num_mac_filters,
1464                     p_req->num_mac_filters);
1465     p_resp->num_vlan_filters = min_t(u8, p_vf->num_vlan_filters,
1466                      p_req->num_vlan_filters);
1467 
1468     qed_iov_vf_mbx_acquire_resc_cids(p_hwfn, p_ptt, p_vf, p_req, p_resp);
1469 
1470     /* This isn't really needed/enforced, but some legacy VFs might depend
1471      * on the correct filling of this field.
1472      */
1473     p_resp->num_mc_filters = QED_MAX_MC_ADDRS;
1474 
1475     /* Validate sufficient resources for VF */
1476     if (p_resp->num_rxqs < p_req->num_rxqs ||
1477         p_resp->num_txqs < p_req->num_txqs ||
1478         p_resp->num_sbs < p_req->num_sbs ||
1479         p_resp->num_mac_filters < p_req->num_mac_filters ||
1480         p_resp->num_vlan_filters < p_req->num_vlan_filters ||
1481         p_resp->num_mc_filters < p_req->num_mc_filters ||
1482         p_resp->num_cids < p_req->num_cids) {
1483         DP_VERBOSE(p_hwfn,
1484                QED_MSG_IOV,
1485                "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",
1486                p_vf->abs_vf_id,
1487                p_req->num_rxqs,
1488                p_resp->num_rxqs,
1489                p_req->num_rxqs,
1490                p_resp->num_txqs,
1491                p_req->num_sbs,
1492                p_resp->num_sbs,
1493                p_req->num_mac_filters,
1494                p_resp->num_mac_filters,
1495                p_req->num_vlan_filters,
1496                p_resp->num_vlan_filters,
1497                p_req->num_mc_filters,
1498                p_resp->num_mc_filters,
1499                p_req->num_cids, p_resp->num_cids);
1500 
1501         /* Some legacy OSes are incapable of correctly handling this
1502          * failure.
1503          */
1504         if ((p_vf->acquire.vfdev_info.eth_fp_hsi_minor ==
1505              ETH_HSI_VER_NO_PKT_LEN_TUNN) &&
1506             (p_vf->acquire.vfdev_info.os_type ==
1507              VFPF_ACQUIRE_OS_WINDOWS))
1508             return PFVF_STATUS_SUCCESS;
1509 
1510         return PFVF_STATUS_NO_RESOURCE;
1511     }
1512 
1513     return PFVF_STATUS_SUCCESS;
1514 }
1515 
1516 static void qed_iov_vf_mbx_acquire_stats(struct qed_hwfn *p_hwfn,
1517                      struct pfvf_stats_info *p_stats)
1518 {
1519     p_stats->mstats.address = PXP_VF_BAR0_START_MSDM_ZONE_B +
1520                   offsetof(struct mstorm_vf_zone,
1521                        non_trigger.eth_queue_stat);
1522     p_stats->mstats.len = sizeof(struct eth_mstorm_per_queue_stat);
1523     p_stats->ustats.address = PXP_VF_BAR0_START_USDM_ZONE_B +
1524                   offsetof(struct ustorm_vf_zone,
1525                        non_trigger.eth_queue_stat);
1526     p_stats->ustats.len = sizeof(struct eth_ustorm_per_queue_stat);
1527     p_stats->pstats.address = PXP_VF_BAR0_START_PSDM_ZONE_B +
1528                   offsetof(struct pstorm_vf_zone,
1529                        non_trigger.eth_queue_stat);
1530     p_stats->pstats.len = sizeof(struct eth_pstorm_per_queue_stat);
1531     p_stats->tstats.address = 0;
1532     p_stats->tstats.len = 0;
1533 }
1534 
1535 static void qed_iov_vf_mbx_acquire(struct qed_hwfn *p_hwfn,
1536                    struct qed_ptt *p_ptt,
1537                    struct qed_vf_info *vf)
1538 {
1539     struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
1540     struct pfvf_acquire_resp_tlv *resp = &mbx->reply_virt->acquire_resp;
1541     struct pf_vf_pfdev_info *pfdev_info = &resp->pfdev_info;
1542     struct vfpf_acquire_tlv *req = &mbx->req_virt->acquire;
1543     u8 vfpf_status = PFVF_STATUS_NOT_SUPPORTED;
1544     struct pf_vf_resc *resc = &resp->resc;
1545     int rc;
1546 
1547     memset(resp, 0, sizeof(*resp));
1548 
1549     /* Write the PF version so that VF would know which version
1550      * is supported - might be later overridden. This guarantees that
1551      * VF could recognize legacy PF based on lack of versions in reply.
1552      */
1553     pfdev_info->major_fp_hsi = ETH_HSI_VER_MAJOR;
1554     pfdev_info->minor_fp_hsi = ETH_HSI_VER_MINOR;
1555 
1556     if (vf->state != VF_FREE && vf->state != VF_STOPPED) {
1557         DP_VERBOSE(p_hwfn,
1558                QED_MSG_IOV,
1559                "VF[%d] sent ACQUIRE but is already in state %d - fail request\n",
1560                vf->abs_vf_id, vf->state);
1561         goto out;
1562     }
1563 
1564     /* Validate FW compatibility */
1565     if (req->vfdev_info.eth_fp_hsi_major != ETH_HSI_VER_MAJOR) {
1566         if (req->vfdev_info.capabilities &
1567             VFPF_ACQUIRE_CAP_PRE_FP_HSI) {
1568             struct vf_pf_vfdev_info *p_vfdev = &req->vfdev_info;
1569 
1570             DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1571                    "VF[%d] is pre-fastpath HSI\n",
1572                    vf->abs_vf_id);
1573             p_vfdev->eth_fp_hsi_major = ETH_HSI_VER_MAJOR;
1574             p_vfdev->eth_fp_hsi_minor = ETH_HSI_VER_NO_PKT_LEN_TUNN;
1575         } else {
1576             DP_INFO(p_hwfn,
1577                 "VF[%d] needs fastpath HSI %02x.%02x, which is incompatible with loaded FW's fastpath HSI %02x.%02x\n",
1578                 vf->abs_vf_id,
1579                 req->vfdev_info.eth_fp_hsi_major,
1580                 req->vfdev_info.eth_fp_hsi_minor,
1581                 ETH_HSI_VER_MAJOR, ETH_HSI_VER_MINOR);
1582 
1583             goto out;
1584         }
1585     }
1586 
1587     /* On 100g PFs, prevent old VFs from loading */
1588     if ((p_hwfn->cdev->num_hwfns > 1) &&
1589         !(req->vfdev_info.capabilities & VFPF_ACQUIRE_CAP_100G)) {
1590         DP_INFO(p_hwfn,
1591             "VF[%d] is running an old driver that doesn't support 100g\n",
1592             vf->abs_vf_id);
1593         goto out;
1594     }
1595 
1596     /* Store the acquire message */
1597     memcpy(&vf->acquire, req, sizeof(vf->acquire));
1598 
1599     vf->opaque_fid = req->vfdev_info.opaque_fid;
1600 
1601     vf->vf_bulletin = req->bulletin_addr;
1602     vf->bulletin.size = (vf->bulletin.size < req->bulletin_size) ?
1603                 vf->bulletin.size : req->bulletin_size;
1604 
1605     /* fill in pfdev info */
1606     pfdev_info->chip_num = p_hwfn->cdev->chip_num;
1607     pfdev_info->db_size = 0;
1608     pfdev_info->indices_per_sb = PIS_PER_SB;
1609 
1610     pfdev_info->capabilities = PFVF_ACQUIRE_CAP_DEFAULT_UNTAGGED |
1611                    PFVF_ACQUIRE_CAP_POST_FW_OVERRIDE;
1612     if (p_hwfn->cdev->num_hwfns > 1)
1613         pfdev_info->capabilities |= PFVF_ACQUIRE_CAP_100G;
1614 
1615     /* Share our ability to use multiple queue-ids only with VFs
1616      * that request it.
1617      */
1618     if (req->vfdev_info.capabilities & VFPF_ACQUIRE_CAP_QUEUE_QIDS)
1619         pfdev_info->capabilities |= PFVF_ACQUIRE_CAP_QUEUE_QIDS;
1620 
1621     /* Share the sizes of the bars with VF */
1622     resp->pfdev_info.bar_size = qed_iov_vf_db_bar_size(p_hwfn, p_ptt);
1623 
1624     qed_iov_vf_mbx_acquire_stats(p_hwfn, &pfdev_info->stats_info);
1625 
1626     memcpy(pfdev_info->port_mac, p_hwfn->hw_info.hw_mac_addr, ETH_ALEN);
1627 
1628     pfdev_info->fw_major = FW_MAJOR_VERSION;
1629     pfdev_info->fw_minor = FW_MINOR_VERSION;
1630     pfdev_info->fw_rev = FW_REVISION_VERSION;
1631     pfdev_info->fw_eng = FW_ENGINEERING_VERSION;
1632 
1633     /* Incorrect when legacy, but doesn't matter as legacy isn't reading
1634      * this field.
1635      */
1636     pfdev_info->minor_fp_hsi = min_t(u8, ETH_HSI_VER_MINOR,
1637                      req->vfdev_info.eth_fp_hsi_minor);
1638     pfdev_info->os_type = VFPF_ACQUIRE_OS_LINUX;
1639     qed_mcp_get_mfw_ver(p_hwfn, p_ptt, &pfdev_info->mfw_ver, NULL);
1640 
1641     pfdev_info->dev_type = p_hwfn->cdev->type;
1642     pfdev_info->chip_rev = p_hwfn->cdev->chip_rev;
1643 
1644     /* Fill resources available to VF; Make sure there are enough to
1645      * satisfy the VF's request.
1646      */
1647     vfpf_status = qed_iov_vf_mbx_acquire_resc(p_hwfn, p_ptt, vf,
1648                           &req->resc_request, resc);
1649     if (vfpf_status != PFVF_STATUS_SUCCESS)
1650         goto out;
1651 
1652     /* Start the VF in FW */
1653     rc = qed_sp_vf_start(p_hwfn, vf);
1654     if (rc) {
1655         DP_NOTICE(p_hwfn, "Failed to start VF[%02x]\n", vf->abs_vf_id);
1656         vfpf_status = PFVF_STATUS_FAILURE;
1657         goto out;
1658     }
1659 
1660     /* Fill agreed size of bulletin board in response */
1661     resp->bulletin_size = vf->bulletin.size;
1662     qed_iov_post_vf_bulletin(p_hwfn, vf->relative_vf_id, p_ptt);
1663 
1664     DP_VERBOSE(p_hwfn,
1665            QED_MSG_IOV,
1666            "VF[%d] ACQUIRE_RESPONSE: pfdev_info- chip_num=0x%x, db_size=%d, idx_per_sb=%d, pf_cap=0x%llx\n"
1667            "resources- n_rxq-%d, n_txq-%d, n_sbs-%d, n_macs-%d, n_vlans-%d\n",
1668            vf->abs_vf_id,
1669            resp->pfdev_info.chip_num,
1670            resp->pfdev_info.db_size,
1671            resp->pfdev_info.indices_per_sb,
1672            resp->pfdev_info.capabilities,
1673            resc->num_rxqs,
1674            resc->num_txqs,
1675            resc->num_sbs,
1676            resc->num_mac_filters,
1677            resc->num_vlan_filters);
1678     vf->state = VF_ACQUIRED;
1679 
1680     /* Prepare Response */
1681 out:
1682     qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_ACQUIRE,
1683                  sizeof(struct pfvf_acquire_resp_tlv), vfpf_status);
1684 }
1685 
1686 static int __qed_iov_spoofchk_set(struct qed_hwfn *p_hwfn,
1687                   struct qed_vf_info *p_vf, bool val)
1688 {
1689     struct qed_sp_vport_update_params params;
1690     int rc;
1691 
1692     if (val == p_vf->spoof_chk) {
1693         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1694                "Spoofchk value[%d] is already configured\n", val);
1695         return 0;
1696     }
1697 
1698     memset(&params, 0, sizeof(struct qed_sp_vport_update_params));
1699     params.opaque_fid = p_vf->opaque_fid;
1700     params.vport_id = p_vf->vport_id;
1701     params.update_anti_spoofing_en_flg = 1;
1702     params.anti_spoofing_en = val;
1703 
1704     rc = qed_sp_vport_update(p_hwfn, &params, QED_SPQ_MODE_EBLOCK, NULL);
1705     if (!rc) {
1706         p_vf->spoof_chk = val;
1707         p_vf->req_spoofchk_val = p_vf->spoof_chk;
1708         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1709                "Spoofchk val[%d] configured\n", val);
1710     } else {
1711         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1712                "Spoofchk configuration[val:%d] failed for VF[%d]\n",
1713                val, p_vf->relative_vf_id);
1714     }
1715 
1716     return rc;
1717 }
1718 
1719 static int qed_iov_reconfigure_unicast_vlan(struct qed_hwfn *p_hwfn,
1720                         struct qed_vf_info *p_vf)
1721 {
1722     struct qed_filter_ucast filter;
1723     int rc = 0;
1724     int i;
1725 
1726     memset(&filter, 0, sizeof(filter));
1727     filter.is_rx_filter = 1;
1728     filter.is_tx_filter = 1;
1729     filter.vport_to_add_to = p_vf->vport_id;
1730     filter.opcode = QED_FILTER_ADD;
1731 
1732     /* Reconfigure vlans */
1733     for (i = 0; i < QED_ETH_VF_NUM_VLAN_FILTERS + 1; i++) {
1734         if (!p_vf->shadow_config.vlans[i].used)
1735             continue;
1736 
1737         filter.type = QED_FILTER_VLAN;
1738         filter.vlan = p_vf->shadow_config.vlans[i].vid;
1739         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1740                "Reconfiguring VLAN [0x%04x] for VF [%04x]\n",
1741                filter.vlan, p_vf->relative_vf_id);
1742         rc = qed_sp_eth_filter_ucast(p_hwfn, p_vf->opaque_fid,
1743                          &filter, QED_SPQ_MODE_CB, NULL);
1744         if (rc) {
1745             DP_NOTICE(p_hwfn,
1746                   "Failed to configure VLAN [%04x] to VF [%04x]\n",
1747                   filter.vlan, p_vf->relative_vf_id);
1748             break;
1749         }
1750     }
1751 
1752     return rc;
1753 }
1754 
1755 static int
1756 qed_iov_reconfigure_unicast_shadow(struct qed_hwfn *p_hwfn,
1757                    struct qed_vf_info *p_vf, u64 events)
1758 {
1759     int rc = 0;
1760 
1761     if ((events & BIT(VLAN_ADDR_FORCED)) &&
1762         !(p_vf->configured_features & (1 << VLAN_ADDR_FORCED)))
1763         rc = qed_iov_reconfigure_unicast_vlan(p_hwfn, p_vf);
1764 
1765     return rc;
1766 }
1767 
1768 static int qed_iov_configure_vport_forced(struct qed_hwfn *p_hwfn,
1769                       struct qed_vf_info *p_vf, u64 events)
1770 {
1771     int rc = 0;
1772     struct qed_filter_ucast filter;
1773 
1774     if (!p_vf->vport_instance)
1775         return -EINVAL;
1776 
1777     if ((events & BIT(MAC_ADDR_FORCED)) ||
1778         p_vf->p_vf_info.is_trusted_configured) {
1779         /* Since there's no way [currently] of removing the MAC,
1780          * we can always assume this means we need to force it.
1781          */
1782         memset(&filter, 0, sizeof(filter));
1783         filter.type = QED_FILTER_MAC;
1784         filter.opcode = QED_FILTER_REPLACE;
1785         filter.is_rx_filter = 1;
1786         filter.is_tx_filter = 1;
1787         filter.vport_to_add_to = p_vf->vport_id;
1788         ether_addr_copy(filter.mac, p_vf->bulletin.p_virt->mac);
1789 
1790         rc = qed_sp_eth_filter_ucast(p_hwfn, p_vf->opaque_fid,
1791                          &filter, QED_SPQ_MODE_CB, NULL);
1792         if (rc) {
1793             DP_NOTICE(p_hwfn,
1794                   "PF failed to configure MAC for VF\n");
1795             return rc;
1796         }
1797         if (p_vf->p_vf_info.is_trusted_configured)
1798             p_vf->configured_features |=
1799                 BIT(VFPF_BULLETIN_MAC_ADDR);
1800         else
1801             p_vf->configured_features |=
1802                 BIT(MAC_ADDR_FORCED);
1803     }
1804 
1805     if (events & BIT(VLAN_ADDR_FORCED)) {
1806         struct qed_sp_vport_update_params vport_update;
1807         u8 removal;
1808         int i;
1809 
1810         memset(&filter, 0, sizeof(filter));
1811         filter.type = QED_FILTER_VLAN;
1812         filter.is_rx_filter = 1;
1813         filter.is_tx_filter = 1;
1814         filter.vport_to_add_to = p_vf->vport_id;
1815         filter.vlan = p_vf->bulletin.p_virt->pvid;
1816         filter.opcode = filter.vlan ? QED_FILTER_REPLACE :
1817                           QED_FILTER_FLUSH;
1818 
1819         /* Send the ramrod */
1820         rc = qed_sp_eth_filter_ucast(p_hwfn, p_vf->opaque_fid,
1821                          &filter, QED_SPQ_MODE_CB, NULL);
1822         if (rc) {
1823             DP_NOTICE(p_hwfn,
1824                   "PF failed to configure VLAN for VF\n");
1825             return rc;
1826         }
1827 
1828         /* Update the default-vlan & silent vlan stripping */
1829         memset(&vport_update, 0, sizeof(vport_update));
1830         vport_update.opaque_fid = p_vf->opaque_fid;
1831         vport_update.vport_id = p_vf->vport_id;
1832         vport_update.update_default_vlan_enable_flg = 1;
1833         vport_update.default_vlan_enable_flg = filter.vlan ? 1 : 0;
1834         vport_update.update_default_vlan_flg = 1;
1835         vport_update.default_vlan = filter.vlan;
1836 
1837         vport_update.update_inner_vlan_removal_flg = 1;
1838         removal = filter.vlan ? 1
1839                       : p_vf->shadow_config.inner_vlan_removal;
1840         vport_update.inner_vlan_removal_flg = removal;
1841         vport_update.silent_vlan_removal_flg = filter.vlan ? 1 : 0;
1842         rc = qed_sp_vport_update(p_hwfn,
1843                      &vport_update,
1844                      QED_SPQ_MODE_EBLOCK, NULL);
1845         if (rc) {
1846             DP_NOTICE(p_hwfn,
1847                   "PF failed to configure VF vport for vlan\n");
1848             return rc;
1849         }
1850 
1851         /* Update all the Rx queues */
1852         for (i = 0; i < QED_MAX_VF_CHAINS_PER_PF; i++) {
1853             struct qed_vf_queue *p_queue = &p_vf->vf_queues[i];
1854             struct qed_queue_cid *p_cid = NULL;
1855 
1856             /* There can be at most 1 Rx queue on qzone. Find it */
1857             p_cid = qed_iov_get_vf_rx_queue_cid(p_queue);
1858             if (!p_cid)
1859                 continue;
1860 
1861             rc = qed_sp_eth_rx_queues_update(p_hwfn,
1862                              (void **)&p_cid,
1863                              1, 0, 1,
1864                              QED_SPQ_MODE_EBLOCK,
1865                              NULL);
1866             if (rc) {
1867                 DP_NOTICE(p_hwfn,
1868                       "Failed to send Rx update fo queue[0x%04x]\n",
1869                       p_cid->rel.queue_id);
1870                 return rc;
1871             }
1872         }
1873 
1874         if (filter.vlan)
1875             p_vf->configured_features |= 1 << VLAN_ADDR_FORCED;
1876         else
1877             p_vf->configured_features &= ~BIT(VLAN_ADDR_FORCED);
1878     }
1879 
1880     /* If forced features are terminated, we need to configure the shadow
1881      * configuration back again.
1882      */
1883     if (events)
1884         qed_iov_reconfigure_unicast_shadow(p_hwfn, p_vf, events);
1885 
1886     return rc;
1887 }
1888 
1889 static void qed_iov_vf_mbx_start_vport(struct qed_hwfn *p_hwfn,
1890                        struct qed_ptt *p_ptt,
1891                        struct qed_vf_info *vf)
1892 {
1893     struct qed_sp_vport_start_params params = { 0 };
1894     struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
1895     struct vfpf_vport_start_tlv *start;
1896     u8 status = PFVF_STATUS_SUCCESS;
1897     struct qed_vf_info *vf_info;
1898     u64 *p_bitmap;
1899     int sb_id;
1900     int rc;
1901 
1902     vf_info = qed_iov_get_vf_info(p_hwfn, (u16)vf->relative_vf_id, true);
1903     if (!vf_info) {
1904         DP_NOTICE(p_hwfn->cdev,
1905               "Failed to get VF info, invalid vfid [%d]\n",
1906               vf->relative_vf_id);
1907         return;
1908     }
1909 
1910     vf->state = VF_ENABLED;
1911     start = &mbx->req_virt->start_vport;
1912 
1913     qed_iov_enable_vf_traffic(p_hwfn, p_ptt, vf);
1914 
1915     /* Initialize Status block in CAU */
1916     for (sb_id = 0; sb_id < vf->num_sbs; sb_id++) {
1917         if (!start->sb_addr[sb_id]) {
1918             DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1919                    "VF[%d] did not fill the address of SB %d\n",
1920                    vf->relative_vf_id, sb_id);
1921             break;
1922         }
1923 
1924         qed_int_cau_conf_sb(p_hwfn, p_ptt,
1925                     start->sb_addr[sb_id],
1926                     vf->igu_sbs[sb_id], vf->abs_vf_id, 1);
1927     }
1928 
1929     vf->mtu = start->mtu;
1930     vf->shadow_config.inner_vlan_removal = start->inner_vlan_removal;
1931 
1932     /* Take into consideration configuration forced by hypervisor;
1933      * If none is configured, use the supplied VF values [for old
1934      * vfs that would still be fine, since they passed '0' as padding].
1935      */
1936     p_bitmap = &vf_info->bulletin.p_virt->valid_bitmap;
1937     if (!(*p_bitmap & BIT(VFPF_BULLETIN_UNTAGGED_DEFAULT_FORCED))) {
1938         u8 vf_req = start->only_untagged;
1939 
1940         vf_info->bulletin.p_virt->default_only_untagged = vf_req;
1941         *p_bitmap |= 1 << VFPF_BULLETIN_UNTAGGED_DEFAULT;
1942     }
1943 
1944     params.tpa_mode = start->tpa_mode;
1945     params.remove_inner_vlan = start->inner_vlan_removal;
1946     params.tx_switching = true;
1947 
1948     params.only_untagged = vf_info->bulletin.p_virt->default_only_untagged;
1949     params.drop_ttl0 = false;
1950     params.concrete_fid = vf->concrete_fid;
1951     params.opaque_fid = vf->opaque_fid;
1952     params.vport_id = vf->vport_id;
1953     params.max_buffers_per_cqe = start->max_buffers_per_cqe;
1954     params.mtu = vf->mtu;
1955 
1956     /* Non trusted VFs should enable control frame filtering */
1957     params.check_mac = !vf->p_vf_info.is_trusted_configured;
1958 
1959     rc = qed_sp_eth_vport_start(p_hwfn, &params);
1960     if (rc) {
1961         DP_ERR(p_hwfn,
1962                "%s returned error %d\n", __func__, rc);
1963         status = PFVF_STATUS_FAILURE;
1964     } else {
1965         vf->vport_instance++;
1966 
1967         /* Force configuration if needed on the newly opened vport */
1968         qed_iov_configure_vport_forced(p_hwfn, vf, *p_bitmap);
1969 
1970         __qed_iov_spoofchk_set(p_hwfn, vf, vf->req_spoofchk_val);
1971     }
1972     qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_VPORT_START,
1973                  sizeof(struct pfvf_def_resp_tlv), status);
1974 }
1975 
1976 static void qed_iov_vf_mbx_stop_vport(struct qed_hwfn *p_hwfn,
1977                       struct qed_ptt *p_ptt,
1978                       struct qed_vf_info *vf)
1979 {
1980     u8 status = PFVF_STATUS_SUCCESS;
1981     int rc;
1982 
1983     vf->vport_instance--;
1984     vf->spoof_chk = false;
1985 
1986     if ((qed_iov_validate_active_rxq(p_hwfn, vf)) ||
1987         (qed_iov_validate_active_txq(p_hwfn, vf))) {
1988         vf->b_malicious = true;
1989         DP_NOTICE(p_hwfn,
1990               "VF [%02x] - considered malicious; Unable to stop RX/TX queues\n",
1991               vf->abs_vf_id);
1992         status = PFVF_STATUS_MALICIOUS;
1993         goto out;
1994     }
1995 
1996     rc = qed_sp_vport_stop(p_hwfn, vf->opaque_fid, vf->vport_id);
1997     if (rc) {
1998         DP_ERR(p_hwfn, "%s returned error %d\n",
1999                __func__, rc);
2000         status = PFVF_STATUS_FAILURE;
2001     }
2002 
2003     /* Forget the configuration on the vport */
2004     vf->configured_features = 0;
2005     memset(&vf->shadow_config, 0, sizeof(vf->shadow_config));
2006 
2007 out:
2008     qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_VPORT_TEARDOWN,
2009                  sizeof(struct pfvf_def_resp_tlv), status);
2010 }
2011 
2012 static void qed_iov_vf_mbx_start_rxq_resp(struct qed_hwfn *p_hwfn,
2013                       struct qed_ptt *p_ptt,
2014                       struct qed_vf_info *vf,
2015                       u8 status, bool b_legacy)
2016 {
2017     struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2018     struct pfvf_start_queue_resp_tlv *p_tlv;
2019     struct vfpf_start_rxq_tlv *req;
2020     u16 length;
2021 
2022     mbx->offset = (u8 *)mbx->reply_virt;
2023 
2024     /* Taking a bigger struct instead of adding a TLV to list was a
2025      * mistake, but one which we're now stuck with, as some older
2026      * clients assume the size of the previous response.
2027      */
2028     if (!b_legacy)
2029         length = sizeof(*p_tlv);
2030     else
2031         length = sizeof(struct pfvf_def_resp_tlv);
2032 
2033     p_tlv = qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_START_RXQ,
2034                 length);
2035     qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
2036             sizeof(struct channel_list_end_tlv));
2037 
2038     /* Update the TLV with the response */
2039     if ((status == PFVF_STATUS_SUCCESS) && !b_legacy) {
2040         req = &mbx->req_virt->start_rxq;
2041         p_tlv->offset = PXP_VF_BAR0_START_MSDM_ZONE_B +
2042                 offsetof(struct mstorm_vf_zone,
2043                      non_trigger.eth_rx_queue_producers) +
2044                 sizeof(struct eth_rx_prod_data) * req->rx_qid;
2045     }
2046 
2047     qed_iov_send_response(p_hwfn, p_ptt, vf, length, status);
2048 }
2049 
2050 static u8 qed_iov_vf_mbx_qid(struct qed_hwfn *p_hwfn,
2051                  struct qed_vf_info *p_vf, bool b_is_tx)
2052 {
2053     struct qed_iov_vf_mbx *p_mbx = &p_vf->vf_mbx;
2054     struct vfpf_qid_tlv *p_qid_tlv;
2055 
2056     /* Search for the qid if the VF published its going to provide it */
2057     if (!(p_vf->acquire.vfdev_info.capabilities &
2058           VFPF_ACQUIRE_CAP_QUEUE_QIDS)) {
2059         if (b_is_tx)
2060             return QED_IOV_LEGACY_QID_TX;
2061         else
2062             return QED_IOV_LEGACY_QID_RX;
2063     }
2064 
2065     p_qid_tlv = (struct vfpf_qid_tlv *)
2066             qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt,
2067                          CHANNEL_TLV_QID);
2068     if (!p_qid_tlv) {
2069         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2070                "VF[%2x]: Failed to provide qid\n",
2071                p_vf->relative_vf_id);
2072 
2073         return QED_IOV_QID_INVALID;
2074     }
2075 
2076     if (p_qid_tlv->qid >= MAX_QUEUES_PER_QZONE) {
2077         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2078                "VF[%02x]: Provided qid out-of-bounds %02x\n",
2079                p_vf->relative_vf_id, p_qid_tlv->qid);
2080         return QED_IOV_QID_INVALID;
2081     }
2082 
2083     return p_qid_tlv->qid;
2084 }
2085 
2086 static void qed_iov_vf_mbx_start_rxq(struct qed_hwfn *p_hwfn,
2087                      struct qed_ptt *p_ptt,
2088                      struct qed_vf_info *vf)
2089 {
2090     struct qed_queue_start_common_params params;
2091     struct qed_queue_cid_vf_params vf_params;
2092     struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2093     u8 status = PFVF_STATUS_NO_RESOURCE;
2094     u8 qid_usage_idx, vf_legacy = 0;
2095     struct vfpf_start_rxq_tlv *req;
2096     struct qed_vf_queue *p_queue;
2097     struct qed_queue_cid *p_cid;
2098     struct qed_sb_info sb_dummy;
2099     int rc;
2100 
2101     req = &mbx->req_virt->start_rxq;
2102 
2103     if (!qed_iov_validate_rxq(p_hwfn, vf, req->rx_qid,
2104                   QED_IOV_VALIDATE_Q_DISABLE) ||
2105         !qed_iov_validate_sb(p_hwfn, vf, req->hw_sb))
2106         goto out;
2107 
2108     qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, false);
2109     if (qid_usage_idx == QED_IOV_QID_INVALID)
2110         goto out;
2111 
2112     p_queue = &vf->vf_queues[req->rx_qid];
2113     if (p_queue->cids[qid_usage_idx].p_cid)
2114         goto out;
2115 
2116     vf_legacy = qed_vf_calculate_legacy(vf);
2117 
2118     /* Acquire a new queue-cid */
2119     memset(&params, 0, sizeof(params));
2120     params.queue_id = p_queue->fw_rx_qid;
2121     params.vport_id = vf->vport_id;
2122     params.stats_id = vf->abs_vf_id + 0x10;
2123     /* Since IGU index is passed via sb_info, construct a dummy one */
2124     memset(&sb_dummy, 0, sizeof(sb_dummy));
2125     sb_dummy.igu_sb_id = req->hw_sb;
2126     params.p_sb = &sb_dummy;
2127     params.sb_idx = req->sb_index;
2128 
2129     memset(&vf_params, 0, sizeof(vf_params));
2130     vf_params.vfid = vf->relative_vf_id;
2131     vf_params.vf_qid = (u8)req->rx_qid;
2132     vf_params.vf_legacy = vf_legacy;
2133     vf_params.qid_usage_idx = qid_usage_idx;
2134     p_cid = qed_eth_queue_to_cid(p_hwfn, vf->opaque_fid,
2135                      &params, true, &vf_params);
2136     if (!p_cid)
2137         goto out;
2138 
2139     /* Legacy VFs have their Producers in a different location, which they
2140      * calculate on their own and clean the producer prior to this.
2141      */
2142     if (!(vf_legacy & QED_QCID_LEGACY_VF_RX_PROD))
2143         qed_wr(p_hwfn, p_ptt, MSEM_REG_FAST_MEMORY +
2144                SEM_FAST_REG_INT_RAM +
2145                MSTORM_ETH_VF_PRODS_OFFSET(vf->abs_vf_id,
2146                           req->rx_qid), 0);
2147 
2148     rc = qed_eth_rxq_start_ramrod(p_hwfn, p_cid,
2149                       req->bd_max_bytes,
2150                       req->rxq_addr,
2151                       req->cqe_pbl_addr, req->cqe_pbl_size);
2152     if (rc) {
2153         status = PFVF_STATUS_FAILURE;
2154         qed_eth_queue_cid_release(p_hwfn, p_cid);
2155     } else {
2156         p_queue->cids[qid_usage_idx].p_cid = p_cid;
2157         p_queue->cids[qid_usage_idx].b_is_tx = false;
2158         status = PFVF_STATUS_SUCCESS;
2159         vf->num_active_rxqs++;
2160     }
2161 
2162 out:
2163     qed_iov_vf_mbx_start_rxq_resp(p_hwfn, p_ptt, vf, status,
2164                       !!(vf_legacy &
2165                      QED_QCID_LEGACY_VF_RX_PROD));
2166 }
2167 
2168 static void
2169 qed_iov_pf_update_tun_response(struct pfvf_update_tunn_param_tlv *p_resp,
2170                    struct qed_tunnel_info *p_tun,
2171                    u16 tunn_feature_mask)
2172 {
2173     p_resp->tunn_feature_mask = tunn_feature_mask;
2174     p_resp->vxlan_mode = p_tun->vxlan.b_mode_enabled;
2175     p_resp->l2geneve_mode = p_tun->l2_geneve.b_mode_enabled;
2176     p_resp->ipgeneve_mode = p_tun->ip_geneve.b_mode_enabled;
2177     p_resp->l2gre_mode = p_tun->l2_gre.b_mode_enabled;
2178     p_resp->ipgre_mode = p_tun->l2_gre.b_mode_enabled;
2179     p_resp->vxlan_clss = p_tun->vxlan.tun_cls;
2180     p_resp->l2gre_clss = p_tun->l2_gre.tun_cls;
2181     p_resp->ipgre_clss = p_tun->ip_gre.tun_cls;
2182     p_resp->l2geneve_clss = p_tun->l2_geneve.tun_cls;
2183     p_resp->ipgeneve_clss = p_tun->ip_geneve.tun_cls;
2184     p_resp->geneve_udp_port = p_tun->geneve_port.port;
2185     p_resp->vxlan_udp_port = p_tun->vxlan_port.port;
2186 }
2187 
2188 static void
2189 __qed_iov_pf_update_tun_param(struct vfpf_update_tunn_param_tlv *p_req,
2190                   struct qed_tunn_update_type *p_tun,
2191                   enum qed_tunn_mode mask, u8 tun_cls)
2192 {
2193     if (p_req->tun_mode_update_mask & BIT(mask)) {
2194         p_tun->b_update_mode = true;
2195 
2196         if (p_req->tunn_mode & BIT(mask))
2197             p_tun->b_mode_enabled = true;
2198     }
2199 
2200     p_tun->tun_cls = tun_cls;
2201 }
2202 
2203 static void
2204 qed_iov_pf_update_tun_param(struct vfpf_update_tunn_param_tlv *p_req,
2205                 struct qed_tunn_update_type *p_tun,
2206                 struct qed_tunn_update_udp_port *p_port,
2207                 enum qed_tunn_mode mask,
2208                 u8 tun_cls, u8 update_port, u16 port)
2209 {
2210     if (update_port) {
2211         p_port->b_update_port = true;
2212         p_port->port = port;
2213     }
2214 
2215     __qed_iov_pf_update_tun_param(p_req, p_tun, mask, tun_cls);
2216 }
2217 
2218 static bool
2219 qed_iov_pf_validate_tunn_param(struct vfpf_update_tunn_param_tlv *p_req)
2220 {
2221     bool b_update_requested = false;
2222 
2223     if (p_req->tun_mode_update_mask || p_req->update_tun_cls ||
2224         p_req->update_geneve_port || p_req->update_vxlan_port)
2225         b_update_requested = true;
2226 
2227     return b_update_requested;
2228 }
2229 
2230 static void qed_pf_validate_tunn_mode(struct qed_tunn_update_type *tun, int *rc)
2231 {
2232     if (tun->b_update_mode && !tun->b_mode_enabled) {
2233         tun->b_update_mode = false;
2234         *rc = -EINVAL;
2235     }
2236 }
2237 
2238 static int
2239 qed_pf_validate_modify_tunn_config(struct qed_hwfn *p_hwfn,
2240                    u16 *tun_features, bool *update,
2241                    struct qed_tunnel_info *tun_src)
2242 {
2243     struct qed_eth_cb_ops *ops = p_hwfn->cdev->protocol_ops.eth;
2244     struct qed_tunnel_info *tun = &p_hwfn->cdev->tunnel;
2245     u16 bultn_vxlan_port, bultn_geneve_port;
2246     void *cookie = p_hwfn->cdev->ops_cookie;
2247     int i, rc = 0;
2248 
2249     *tun_features = p_hwfn->cdev->tunn_feature_mask;
2250     bultn_vxlan_port = tun->vxlan_port.port;
2251     bultn_geneve_port = tun->geneve_port.port;
2252     qed_pf_validate_tunn_mode(&tun_src->vxlan, &rc);
2253     qed_pf_validate_tunn_mode(&tun_src->l2_geneve, &rc);
2254     qed_pf_validate_tunn_mode(&tun_src->ip_geneve, &rc);
2255     qed_pf_validate_tunn_mode(&tun_src->l2_gre, &rc);
2256     qed_pf_validate_tunn_mode(&tun_src->ip_gre, &rc);
2257 
2258     if ((tun_src->b_update_rx_cls || tun_src->b_update_tx_cls) &&
2259         (tun_src->vxlan.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
2260          tun_src->l2_geneve.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
2261          tun_src->ip_geneve.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
2262          tun_src->l2_gre.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
2263          tun_src->ip_gre.tun_cls != QED_TUNN_CLSS_MAC_VLAN)) {
2264         tun_src->b_update_rx_cls = false;
2265         tun_src->b_update_tx_cls = false;
2266         rc = -EINVAL;
2267     }
2268 
2269     if (tun_src->vxlan_port.b_update_port) {
2270         if (tun_src->vxlan_port.port == tun->vxlan_port.port) {
2271             tun_src->vxlan_port.b_update_port = false;
2272         } else {
2273             *update = true;
2274             bultn_vxlan_port = tun_src->vxlan_port.port;
2275         }
2276     }
2277 
2278     if (tun_src->geneve_port.b_update_port) {
2279         if (tun_src->geneve_port.port == tun->geneve_port.port) {
2280             tun_src->geneve_port.b_update_port = false;
2281         } else {
2282             *update = true;
2283             bultn_geneve_port = tun_src->geneve_port.port;
2284         }
2285     }
2286 
2287     qed_for_each_vf(p_hwfn, i) {
2288         qed_iov_bulletin_set_udp_ports(p_hwfn, i, bultn_vxlan_port,
2289                            bultn_geneve_port);
2290     }
2291 
2292     qed_schedule_iov(p_hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
2293     ops->ports_update(cookie, bultn_vxlan_port, bultn_geneve_port);
2294 
2295     return rc;
2296 }
2297 
2298 static void qed_iov_vf_mbx_update_tunn_param(struct qed_hwfn *p_hwfn,
2299                          struct qed_ptt *p_ptt,
2300                          struct qed_vf_info *p_vf)
2301 {
2302     struct qed_tunnel_info *p_tun = &p_hwfn->cdev->tunnel;
2303     struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
2304     struct pfvf_update_tunn_param_tlv *p_resp;
2305     struct vfpf_update_tunn_param_tlv *p_req;
2306     u8 status = PFVF_STATUS_SUCCESS;
2307     bool b_update_required = false;
2308     struct qed_tunnel_info tunn;
2309     u16 tunn_feature_mask = 0;
2310     int i, rc = 0;
2311 
2312     mbx->offset = (u8 *)mbx->reply_virt;
2313 
2314     memset(&tunn, 0, sizeof(tunn));
2315     p_req = &mbx->req_virt->tunn_param_update;
2316 
2317     if (!qed_iov_pf_validate_tunn_param(p_req)) {
2318         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2319                "No tunnel update requested by VF\n");
2320         status = PFVF_STATUS_FAILURE;
2321         goto send_resp;
2322     }
2323 
2324     tunn.b_update_rx_cls = p_req->update_tun_cls;
2325     tunn.b_update_tx_cls = p_req->update_tun_cls;
2326 
2327     qed_iov_pf_update_tun_param(p_req, &tunn.vxlan, &tunn.vxlan_port,
2328                     QED_MODE_VXLAN_TUNN, p_req->vxlan_clss,
2329                     p_req->update_vxlan_port,
2330                     p_req->vxlan_port);
2331     qed_iov_pf_update_tun_param(p_req, &tunn.l2_geneve, &tunn.geneve_port,
2332                     QED_MODE_L2GENEVE_TUNN,
2333                     p_req->l2geneve_clss,
2334                     p_req->update_geneve_port,
2335                     p_req->geneve_port);
2336     __qed_iov_pf_update_tun_param(p_req, &tunn.ip_geneve,
2337                       QED_MODE_IPGENEVE_TUNN,
2338                       p_req->ipgeneve_clss);
2339     __qed_iov_pf_update_tun_param(p_req, &tunn.l2_gre,
2340                       QED_MODE_L2GRE_TUNN, p_req->l2gre_clss);
2341     __qed_iov_pf_update_tun_param(p_req, &tunn.ip_gre,
2342                       QED_MODE_IPGRE_TUNN, p_req->ipgre_clss);
2343 
2344     /* If PF modifies VF's req then it should
2345      * still return an error in case of partial configuration
2346      * or modified configuration as opposed to requested one.
2347      */
2348     rc = qed_pf_validate_modify_tunn_config(p_hwfn, &tunn_feature_mask,
2349                         &b_update_required, &tunn);
2350 
2351     if (rc)
2352         status = PFVF_STATUS_FAILURE;
2353 
2354     /* If QED client is willing to update anything ? */
2355     if (b_update_required) {
2356         u16 geneve_port;
2357 
2358         rc = qed_sp_pf_update_tunn_cfg(p_hwfn, p_ptt, &tunn,
2359                            QED_SPQ_MODE_EBLOCK, NULL);
2360         if (rc)
2361             status = PFVF_STATUS_FAILURE;
2362 
2363         geneve_port = p_tun->geneve_port.port;
2364         qed_for_each_vf(p_hwfn, i) {
2365             qed_iov_bulletin_set_udp_ports(p_hwfn, i,
2366                                p_tun->vxlan_port.port,
2367                                geneve_port);
2368         }
2369     }
2370 
2371 send_resp:
2372     p_resp = qed_add_tlv(p_hwfn, &mbx->offset,
2373                  CHANNEL_TLV_UPDATE_TUNN_PARAM, sizeof(*p_resp));
2374 
2375     qed_iov_pf_update_tun_response(p_resp, p_tun, tunn_feature_mask);
2376     qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
2377             sizeof(struct channel_list_end_tlv));
2378 
2379     qed_iov_send_response(p_hwfn, p_ptt, p_vf, sizeof(*p_resp), status);
2380 }
2381 
2382 static void qed_iov_vf_mbx_start_txq_resp(struct qed_hwfn *p_hwfn,
2383                       struct qed_ptt *p_ptt,
2384                       struct qed_vf_info *p_vf,
2385                       u32 cid, u8 status)
2386 {
2387     struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
2388     struct pfvf_start_queue_resp_tlv *p_tlv;
2389     bool b_legacy = false;
2390     u16 length;
2391 
2392     mbx->offset = (u8 *)mbx->reply_virt;
2393 
2394     /* Taking a bigger struct instead of adding a TLV to list was a
2395      * mistake, but one which we're now stuck with, as some older
2396      * clients assume the size of the previous response.
2397      */
2398     if (p_vf->acquire.vfdev_info.eth_fp_hsi_minor ==
2399         ETH_HSI_VER_NO_PKT_LEN_TUNN)
2400         b_legacy = true;
2401 
2402     if (!b_legacy)
2403         length = sizeof(*p_tlv);
2404     else
2405         length = sizeof(struct pfvf_def_resp_tlv);
2406 
2407     p_tlv = qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_START_TXQ,
2408                 length);
2409     qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
2410             sizeof(struct channel_list_end_tlv));
2411 
2412     /* Update the TLV with the response */
2413     if ((status == PFVF_STATUS_SUCCESS) && !b_legacy)
2414         p_tlv->offset = qed_db_addr_vf(cid, DQ_DEMS_LEGACY);
2415 
2416     qed_iov_send_response(p_hwfn, p_ptt, p_vf, length, status);
2417 }
2418 
2419 static void qed_iov_vf_mbx_start_txq(struct qed_hwfn *p_hwfn,
2420                      struct qed_ptt *p_ptt,
2421                      struct qed_vf_info *vf)
2422 {
2423     struct qed_queue_start_common_params params;
2424     struct qed_queue_cid_vf_params vf_params;
2425     struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2426     u8 status = PFVF_STATUS_NO_RESOURCE;
2427     struct vfpf_start_txq_tlv *req;
2428     struct qed_vf_queue *p_queue;
2429     struct qed_queue_cid *p_cid;
2430     struct qed_sb_info sb_dummy;
2431     u8 qid_usage_idx, vf_legacy;
2432     u32 cid = 0;
2433     int rc;
2434     u16 pq;
2435 
2436     memset(&params, 0, sizeof(params));
2437     req = &mbx->req_virt->start_txq;
2438 
2439     if (!qed_iov_validate_txq(p_hwfn, vf, req->tx_qid,
2440                   QED_IOV_VALIDATE_Q_NA) ||
2441         !qed_iov_validate_sb(p_hwfn, vf, req->hw_sb))
2442         goto out;
2443 
2444     qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, true);
2445     if (qid_usage_idx == QED_IOV_QID_INVALID)
2446         goto out;
2447 
2448     p_queue = &vf->vf_queues[req->tx_qid];
2449     if (p_queue->cids[qid_usage_idx].p_cid)
2450         goto out;
2451 
2452     vf_legacy = qed_vf_calculate_legacy(vf);
2453 
2454     /* Acquire a new queue-cid */
2455     params.queue_id = p_queue->fw_tx_qid;
2456     params.vport_id = vf->vport_id;
2457     params.stats_id = vf->abs_vf_id + 0x10;
2458 
2459     /* Since IGU index is passed via sb_info, construct a dummy one */
2460     memset(&sb_dummy, 0, sizeof(sb_dummy));
2461     sb_dummy.igu_sb_id = req->hw_sb;
2462     params.p_sb = &sb_dummy;
2463     params.sb_idx = req->sb_index;
2464 
2465     memset(&vf_params, 0, sizeof(vf_params));
2466     vf_params.vfid = vf->relative_vf_id;
2467     vf_params.vf_qid = (u8)req->tx_qid;
2468     vf_params.vf_legacy = vf_legacy;
2469     vf_params.qid_usage_idx = qid_usage_idx;
2470 
2471     p_cid = qed_eth_queue_to_cid(p_hwfn, vf->opaque_fid,
2472                      &params, false, &vf_params);
2473     if (!p_cid)
2474         goto out;
2475 
2476     pq = qed_get_cm_pq_idx_vf(p_hwfn, vf->relative_vf_id);
2477     rc = qed_eth_txq_start_ramrod(p_hwfn, p_cid,
2478                       req->pbl_addr, req->pbl_size, pq);
2479     if (rc) {
2480         status = PFVF_STATUS_FAILURE;
2481         qed_eth_queue_cid_release(p_hwfn, p_cid);
2482     } else {
2483         status = PFVF_STATUS_SUCCESS;
2484         p_queue->cids[qid_usage_idx].p_cid = p_cid;
2485         p_queue->cids[qid_usage_idx].b_is_tx = true;
2486         cid = p_cid->cid;
2487     }
2488 
2489 out:
2490     qed_iov_vf_mbx_start_txq_resp(p_hwfn, p_ptt, vf, cid, status);
2491 }
2492 
2493 static int qed_iov_vf_stop_rxqs(struct qed_hwfn *p_hwfn,
2494                 struct qed_vf_info *vf,
2495                 u16 rxq_id,
2496                 u8 qid_usage_idx, bool cqe_completion)
2497 {
2498     struct qed_vf_queue *p_queue;
2499     int rc = 0;
2500 
2501     if (!qed_iov_validate_rxq(p_hwfn, vf, rxq_id, QED_IOV_VALIDATE_Q_NA)) {
2502         DP_VERBOSE(p_hwfn,
2503                QED_MSG_IOV,
2504                "VF[%d] Tried Closing Rx 0x%04x.%02x which is inactive\n",
2505                vf->relative_vf_id, rxq_id, qid_usage_idx);
2506         return -EINVAL;
2507     }
2508 
2509     p_queue = &vf->vf_queues[rxq_id];
2510 
2511     /* We've validated the index and the existence of the active RXQ -
2512      * now we need to make sure that it's using the correct qid.
2513      */
2514     if (!p_queue->cids[qid_usage_idx].p_cid ||
2515         p_queue->cids[qid_usage_idx].b_is_tx) {
2516         struct qed_queue_cid *p_cid;
2517 
2518         p_cid = qed_iov_get_vf_rx_queue_cid(p_queue);
2519         DP_VERBOSE(p_hwfn,
2520                QED_MSG_IOV,
2521                "VF[%d] - Tried Closing Rx 0x%04x.%02x, but Rx is at %04x.%02x\n",
2522                vf->relative_vf_id,
2523                rxq_id, qid_usage_idx, rxq_id, p_cid->qid_usage_idx);
2524         return -EINVAL;
2525     }
2526 
2527     /* Now that we know we have a valid Rx-queue - close it */
2528     rc = qed_eth_rx_queue_stop(p_hwfn,
2529                    p_queue->cids[qid_usage_idx].p_cid,
2530                    false, cqe_completion);
2531     if (rc)
2532         return rc;
2533 
2534     p_queue->cids[qid_usage_idx].p_cid = NULL;
2535     vf->num_active_rxqs--;
2536 
2537     return 0;
2538 }
2539 
2540 static int qed_iov_vf_stop_txqs(struct qed_hwfn *p_hwfn,
2541                 struct qed_vf_info *vf,
2542                 u16 txq_id, u8 qid_usage_idx)
2543 {
2544     struct qed_vf_queue *p_queue;
2545     int rc = 0;
2546 
2547     if (!qed_iov_validate_txq(p_hwfn, vf, txq_id, QED_IOV_VALIDATE_Q_NA))
2548         return -EINVAL;
2549 
2550     p_queue = &vf->vf_queues[txq_id];
2551     if (!p_queue->cids[qid_usage_idx].p_cid ||
2552         !p_queue->cids[qid_usage_idx].b_is_tx)
2553         return -EINVAL;
2554 
2555     rc = qed_eth_tx_queue_stop(p_hwfn, p_queue->cids[qid_usage_idx].p_cid);
2556     if (rc)
2557         return rc;
2558 
2559     p_queue->cids[qid_usage_idx].p_cid = NULL;
2560     return 0;
2561 }
2562 
2563 static void qed_iov_vf_mbx_stop_rxqs(struct qed_hwfn *p_hwfn,
2564                      struct qed_ptt *p_ptt,
2565                      struct qed_vf_info *vf)
2566 {
2567     u16 length = sizeof(struct pfvf_def_resp_tlv);
2568     struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2569     u8 status = PFVF_STATUS_FAILURE;
2570     struct vfpf_stop_rxqs_tlv *req;
2571     u8 qid_usage_idx;
2572     int rc;
2573 
2574     /* There has never been an official driver that used this interface
2575      * for stopping multiple queues, and it is now considered deprecated.
2576      * Validate this isn't used here.
2577      */
2578     req = &mbx->req_virt->stop_rxqs;
2579     if (req->num_rxqs != 1) {
2580         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2581                "Odd; VF[%d] tried stopping multiple Rx queues\n",
2582                vf->relative_vf_id);
2583         status = PFVF_STATUS_NOT_SUPPORTED;
2584         goto out;
2585     }
2586 
2587     /* Find which qid-index is associated with the queue */
2588     qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, false);
2589     if (qid_usage_idx == QED_IOV_QID_INVALID)
2590         goto out;
2591 
2592     rc = qed_iov_vf_stop_rxqs(p_hwfn, vf, req->rx_qid,
2593                   qid_usage_idx, req->cqe_completion);
2594     if (!rc)
2595         status = PFVF_STATUS_SUCCESS;
2596 out:
2597     qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_STOP_RXQS,
2598                  length, status);
2599 }
2600 
2601 static void qed_iov_vf_mbx_stop_txqs(struct qed_hwfn *p_hwfn,
2602                      struct qed_ptt *p_ptt,
2603                      struct qed_vf_info *vf)
2604 {
2605     u16 length = sizeof(struct pfvf_def_resp_tlv);
2606     struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2607     u8 status = PFVF_STATUS_FAILURE;
2608     struct vfpf_stop_txqs_tlv *req;
2609     u8 qid_usage_idx;
2610     int rc;
2611 
2612     /* There has never been an official driver that used this interface
2613      * for stopping multiple queues, and it is now considered deprecated.
2614      * Validate this isn't used here.
2615      */
2616     req = &mbx->req_virt->stop_txqs;
2617     if (req->num_txqs != 1) {
2618         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2619                "Odd; VF[%d] tried stopping multiple Tx queues\n",
2620                vf->relative_vf_id);
2621         status = PFVF_STATUS_NOT_SUPPORTED;
2622         goto out;
2623     }
2624 
2625     /* Find which qid-index is associated with the queue */
2626     qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, true);
2627     if (qid_usage_idx == QED_IOV_QID_INVALID)
2628         goto out;
2629 
2630     rc = qed_iov_vf_stop_txqs(p_hwfn, vf, req->tx_qid, qid_usage_idx);
2631     if (!rc)
2632         status = PFVF_STATUS_SUCCESS;
2633 
2634 out:
2635     qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_STOP_TXQS,
2636                  length, status);
2637 }
2638 
2639 static void qed_iov_vf_mbx_update_rxqs(struct qed_hwfn *p_hwfn,
2640                        struct qed_ptt *p_ptt,
2641                        struct qed_vf_info *vf)
2642 {
2643     struct qed_queue_cid *handlers[QED_MAX_VF_CHAINS_PER_PF];
2644     u16 length = sizeof(struct pfvf_def_resp_tlv);
2645     struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2646     struct vfpf_update_rxq_tlv *req;
2647     u8 status = PFVF_STATUS_FAILURE;
2648     u8 complete_event_flg;
2649     u8 complete_cqe_flg;
2650     u8 qid_usage_idx;
2651     int rc;
2652     u8 i;
2653 
2654     req = &mbx->req_virt->update_rxq;
2655     complete_cqe_flg = !!(req->flags & VFPF_RXQ_UPD_COMPLETE_CQE_FLAG);
2656     complete_event_flg = !!(req->flags & VFPF_RXQ_UPD_COMPLETE_EVENT_FLAG);
2657 
2658     qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, false);
2659     if (qid_usage_idx == QED_IOV_QID_INVALID)
2660         goto out;
2661 
2662     /* There shouldn't exist a VF that uses queue-qids yet uses this
2663      * API with multiple Rx queues. Validate this.
2664      */
2665     if ((vf->acquire.vfdev_info.capabilities &
2666          VFPF_ACQUIRE_CAP_QUEUE_QIDS) && req->num_rxqs != 1) {
2667         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2668                "VF[%d] supports QIDs but sends multiple queues\n",
2669                vf->relative_vf_id);
2670         goto out;
2671     }
2672 
2673     /* Validate inputs - for the legacy case this is still true since
2674      * qid_usage_idx for each Rx queue would be LEGACY_QID_RX.
2675      */
2676     for (i = req->rx_qid; i < req->rx_qid + req->num_rxqs; i++) {
2677         if (!qed_iov_validate_rxq(p_hwfn, vf, i,
2678                       QED_IOV_VALIDATE_Q_NA) ||
2679             !vf->vf_queues[i].cids[qid_usage_idx].p_cid ||
2680             vf->vf_queues[i].cids[qid_usage_idx].b_is_tx) {
2681             DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2682                    "VF[%d]: Incorrect Rxqs [%04x, %02x]\n",
2683                    vf->relative_vf_id, req->rx_qid,
2684                    req->num_rxqs);
2685             goto out;
2686         }
2687     }
2688 
2689     /* Prepare the handlers */
2690     for (i = 0; i < req->num_rxqs; i++) {
2691         u16 qid = req->rx_qid + i;
2692 
2693         handlers[i] = vf->vf_queues[qid].cids[qid_usage_idx].p_cid;
2694     }
2695 
2696     rc = qed_sp_eth_rx_queues_update(p_hwfn, (void **)&handlers,
2697                      req->num_rxqs,
2698                      complete_cqe_flg,
2699                      complete_event_flg,
2700                      QED_SPQ_MODE_EBLOCK, NULL);
2701     if (rc)
2702         goto out;
2703 
2704     status = PFVF_STATUS_SUCCESS;
2705 out:
2706     qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_UPDATE_RXQ,
2707                  length, status);
2708 }
2709 
2710 void *qed_iov_search_list_tlvs(struct qed_hwfn *p_hwfn,
2711                    void *p_tlvs_list, u16 req_type)
2712 {
2713     struct channel_tlv *p_tlv = (struct channel_tlv *)p_tlvs_list;
2714     int len = 0;
2715 
2716     do {
2717         if (!p_tlv->length) {
2718             DP_NOTICE(p_hwfn, "Zero length TLV found\n");
2719             return NULL;
2720         }
2721 
2722         if (p_tlv->type == req_type) {
2723             DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2724                    "Extended tlv type %d, length %d found\n",
2725                    p_tlv->type, p_tlv->length);
2726             return p_tlv;
2727         }
2728 
2729         len += p_tlv->length;
2730         p_tlv = (struct channel_tlv *)((u8 *)p_tlv + p_tlv->length);
2731 
2732         if ((len + p_tlv->length) > TLV_BUFFER_SIZE) {
2733             DP_NOTICE(p_hwfn, "TLVs has overrun the buffer size\n");
2734             return NULL;
2735         }
2736     } while (p_tlv->type != CHANNEL_TLV_LIST_END);
2737 
2738     return NULL;
2739 }
2740 
2741 static void
2742 qed_iov_vp_update_act_param(struct qed_hwfn *p_hwfn,
2743                 struct qed_sp_vport_update_params *p_data,
2744                 struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2745 {
2746     struct vfpf_vport_update_activate_tlv *p_act_tlv;
2747     u16 tlv = CHANNEL_TLV_VPORT_UPDATE_ACTIVATE;
2748 
2749     p_act_tlv = (struct vfpf_vport_update_activate_tlv *)
2750             qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2751     if (!p_act_tlv)
2752         return;
2753 
2754     p_data->update_vport_active_rx_flg = p_act_tlv->update_rx;
2755     p_data->vport_active_rx_flg = p_act_tlv->active_rx;
2756     p_data->update_vport_active_tx_flg = p_act_tlv->update_tx;
2757     p_data->vport_active_tx_flg = p_act_tlv->active_tx;
2758     *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_ACTIVATE;
2759 }
2760 
2761 static void
2762 qed_iov_vp_update_vlan_param(struct qed_hwfn *p_hwfn,
2763                  struct qed_sp_vport_update_params *p_data,
2764                  struct qed_vf_info *p_vf,
2765                  struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2766 {
2767     struct vfpf_vport_update_vlan_strip_tlv *p_vlan_tlv;
2768     u16 tlv = CHANNEL_TLV_VPORT_UPDATE_VLAN_STRIP;
2769 
2770     p_vlan_tlv = (struct vfpf_vport_update_vlan_strip_tlv *)
2771              qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2772     if (!p_vlan_tlv)
2773         return;
2774 
2775     p_vf->shadow_config.inner_vlan_removal = p_vlan_tlv->remove_vlan;
2776 
2777     /* Ignore the VF request if we're forcing a vlan */
2778     if (!(p_vf->configured_features & BIT(VLAN_ADDR_FORCED))) {
2779         p_data->update_inner_vlan_removal_flg = 1;
2780         p_data->inner_vlan_removal_flg = p_vlan_tlv->remove_vlan;
2781     }
2782 
2783     *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_VLAN_STRIP;
2784 }
2785 
2786 static void
2787 qed_iov_vp_update_tx_switch(struct qed_hwfn *p_hwfn,
2788                 struct qed_sp_vport_update_params *p_data,
2789                 struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2790 {
2791     struct vfpf_vport_update_tx_switch_tlv *p_tx_switch_tlv;
2792     u16 tlv = CHANNEL_TLV_VPORT_UPDATE_TX_SWITCH;
2793 
2794     p_tx_switch_tlv = (struct vfpf_vport_update_tx_switch_tlv *)
2795               qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt,
2796                            tlv);
2797     if (!p_tx_switch_tlv)
2798         return;
2799 
2800     p_data->update_tx_switching_flg = 1;
2801     p_data->tx_switching_flg = p_tx_switch_tlv->tx_switching;
2802     *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_TX_SWITCH;
2803 }
2804 
2805 static void
2806 qed_iov_vp_update_mcast_bin_param(struct qed_hwfn *p_hwfn,
2807                   struct qed_sp_vport_update_params *p_data,
2808                   struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2809 {
2810     struct vfpf_vport_update_mcast_bin_tlv *p_mcast_tlv;
2811     u16 tlv = CHANNEL_TLV_VPORT_UPDATE_MCAST;
2812 
2813     p_mcast_tlv = (struct vfpf_vport_update_mcast_bin_tlv *)
2814         qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2815     if (!p_mcast_tlv)
2816         return;
2817 
2818     p_data->update_approx_mcast_flg = 1;
2819     memcpy(p_data->bins, p_mcast_tlv->bins,
2820            sizeof(u32) * ETH_MULTICAST_MAC_BINS_IN_REGS);
2821     *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_MCAST;
2822 }
2823 
2824 static void
2825 qed_iov_vp_update_accept_flag(struct qed_hwfn *p_hwfn,
2826                   struct qed_sp_vport_update_params *p_data,
2827                   struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2828 {
2829     struct qed_filter_accept_flags *p_flags = &p_data->accept_flags;
2830     struct vfpf_vport_update_accept_param_tlv *p_accept_tlv;
2831     u16 tlv = CHANNEL_TLV_VPORT_UPDATE_ACCEPT_PARAM;
2832 
2833     p_accept_tlv = (struct vfpf_vport_update_accept_param_tlv *)
2834         qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2835     if (!p_accept_tlv)
2836         return;
2837 
2838     p_flags->update_rx_mode_config = p_accept_tlv->update_rx_mode;
2839     p_flags->rx_accept_filter = p_accept_tlv->rx_accept_filter;
2840     p_flags->update_tx_mode_config = p_accept_tlv->update_tx_mode;
2841     p_flags->tx_accept_filter = p_accept_tlv->tx_accept_filter;
2842     *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_ACCEPT_PARAM;
2843 }
2844 
2845 static void
2846 qed_iov_vp_update_accept_any_vlan(struct qed_hwfn *p_hwfn,
2847                   struct qed_sp_vport_update_params *p_data,
2848                   struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2849 {
2850     struct vfpf_vport_update_accept_any_vlan_tlv *p_accept_any_vlan;
2851     u16 tlv = CHANNEL_TLV_VPORT_UPDATE_ACCEPT_ANY_VLAN;
2852 
2853     p_accept_any_vlan = (struct vfpf_vport_update_accept_any_vlan_tlv *)
2854                 qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt,
2855                              tlv);
2856     if (!p_accept_any_vlan)
2857         return;
2858 
2859     p_data->accept_any_vlan = p_accept_any_vlan->accept_any_vlan;
2860     p_data->update_accept_any_vlan_flg =
2861             p_accept_any_vlan->update_accept_any_vlan_flg;
2862     *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_ACCEPT_ANY_VLAN;
2863 }
2864 
2865 static void
2866 qed_iov_vp_update_rss_param(struct qed_hwfn *p_hwfn,
2867                 struct qed_vf_info *vf,
2868                 struct qed_sp_vport_update_params *p_data,
2869                 struct qed_rss_params *p_rss,
2870                 struct qed_iov_vf_mbx *p_mbx,
2871                 u16 *tlvs_mask, u16 *tlvs_accepted)
2872 {
2873     struct vfpf_vport_update_rss_tlv *p_rss_tlv;
2874     u16 tlv = CHANNEL_TLV_VPORT_UPDATE_RSS;
2875     bool b_reject = false;
2876     u16 table_size;
2877     u16 i, q_idx;
2878 
2879     p_rss_tlv = (struct vfpf_vport_update_rss_tlv *)
2880             qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2881     if (!p_rss_tlv) {
2882         p_data->rss_params = NULL;
2883         return;
2884     }
2885 
2886     memset(p_rss, 0, sizeof(struct qed_rss_params));
2887 
2888     p_rss->update_rss_config = !!(p_rss_tlv->update_rss_flags &
2889                       VFPF_UPDATE_RSS_CONFIG_FLAG);
2890     p_rss->update_rss_capabilities = !!(p_rss_tlv->update_rss_flags &
2891                         VFPF_UPDATE_RSS_CAPS_FLAG);
2892     p_rss->update_rss_ind_table = !!(p_rss_tlv->update_rss_flags &
2893                      VFPF_UPDATE_RSS_IND_TABLE_FLAG);
2894     p_rss->update_rss_key = !!(p_rss_tlv->update_rss_flags &
2895                    VFPF_UPDATE_RSS_KEY_FLAG);
2896 
2897     p_rss->rss_enable = p_rss_tlv->rss_enable;
2898     p_rss->rss_eng_id = vf->relative_vf_id + 1;
2899     p_rss->rss_caps = p_rss_tlv->rss_caps;
2900     p_rss->rss_table_size_log = p_rss_tlv->rss_table_size_log;
2901     memcpy(p_rss->rss_key, p_rss_tlv->rss_key, sizeof(p_rss->rss_key));
2902 
2903     table_size = min_t(u16, ARRAY_SIZE(p_rss->rss_ind_table),
2904                (1 << p_rss_tlv->rss_table_size_log));
2905 
2906     for (i = 0; i < table_size; i++) {
2907         struct qed_queue_cid *p_cid;
2908 
2909         q_idx = p_rss_tlv->rss_ind_table[i];
2910         if (!qed_iov_validate_rxq(p_hwfn, vf, q_idx,
2911                       QED_IOV_VALIDATE_Q_ENABLE)) {
2912             DP_VERBOSE(p_hwfn,
2913                    QED_MSG_IOV,
2914                    "VF[%d]: Omitting RSS due to wrong queue %04x\n",
2915                    vf->relative_vf_id, q_idx);
2916             b_reject = true;
2917             goto out;
2918         }
2919 
2920         p_cid = qed_iov_get_vf_rx_queue_cid(&vf->vf_queues[q_idx]);
2921         p_rss->rss_ind_table[i] = p_cid;
2922     }
2923 
2924     p_data->rss_params = p_rss;
2925 out:
2926     *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_RSS;
2927     if (!b_reject)
2928         *tlvs_accepted |= 1 << QED_IOV_VP_UPDATE_RSS;
2929 }
2930 
2931 static void
2932 qed_iov_vp_update_sge_tpa_param(struct qed_hwfn *p_hwfn,
2933                 struct qed_vf_info *vf,
2934                 struct qed_sp_vport_update_params *p_data,
2935                 struct qed_sge_tpa_params *p_sge_tpa,
2936                 struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2937 {
2938     struct vfpf_vport_update_sge_tpa_tlv *p_sge_tpa_tlv;
2939     u16 tlv = CHANNEL_TLV_VPORT_UPDATE_SGE_TPA;
2940 
2941     p_sge_tpa_tlv = (struct vfpf_vport_update_sge_tpa_tlv *)
2942         qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2943 
2944     if (!p_sge_tpa_tlv) {
2945         p_data->sge_tpa_params = NULL;
2946         return;
2947     }
2948 
2949     memset(p_sge_tpa, 0, sizeof(struct qed_sge_tpa_params));
2950 
2951     p_sge_tpa->update_tpa_en_flg =
2952         !!(p_sge_tpa_tlv->update_sge_tpa_flags & VFPF_UPDATE_TPA_EN_FLAG);
2953     p_sge_tpa->update_tpa_param_flg =
2954         !!(p_sge_tpa_tlv->update_sge_tpa_flags &
2955         VFPF_UPDATE_TPA_PARAM_FLAG);
2956 
2957     p_sge_tpa->tpa_ipv4_en_flg =
2958         !!(p_sge_tpa_tlv->sge_tpa_flags & VFPF_TPA_IPV4_EN_FLAG);
2959     p_sge_tpa->tpa_ipv6_en_flg =
2960         !!(p_sge_tpa_tlv->sge_tpa_flags & VFPF_TPA_IPV6_EN_FLAG);
2961     p_sge_tpa->tpa_pkt_split_flg =
2962         !!(p_sge_tpa_tlv->sge_tpa_flags & VFPF_TPA_PKT_SPLIT_FLAG);
2963     p_sge_tpa->tpa_hdr_data_split_flg =
2964         !!(p_sge_tpa_tlv->sge_tpa_flags & VFPF_TPA_HDR_DATA_SPLIT_FLAG);
2965     p_sge_tpa->tpa_gro_consistent_flg =
2966         !!(p_sge_tpa_tlv->sge_tpa_flags & VFPF_TPA_GRO_CONSIST_FLAG);
2967 
2968     p_sge_tpa->tpa_max_aggs_num = p_sge_tpa_tlv->tpa_max_aggs_num;
2969     p_sge_tpa->tpa_max_size = p_sge_tpa_tlv->tpa_max_size;
2970     p_sge_tpa->tpa_min_size_to_start = p_sge_tpa_tlv->tpa_min_size_to_start;
2971     p_sge_tpa->tpa_min_size_to_cont = p_sge_tpa_tlv->tpa_min_size_to_cont;
2972     p_sge_tpa->max_buffers_per_cqe = p_sge_tpa_tlv->max_buffers_per_cqe;
2973 
2974     p_data->sge_tpa_params = p_sge_tpa;
2975 
2976     *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_SGE_TPA;
2977 }
2978 
2979 static int qed_iov_pre_update_vport(struct qed_hwfn *hwfn,
2980                     u8 vfid,
2981                     struct qed_sp_vport_update_params *params,
2982                     u16 *tlvs)
2983 {
2984     u8 mask = QED_ACCEPT_UCAST_UNMATCHED | QED_ACCEPT_MCAST_UNMATCHED;
2985     struct qed_filter_accept_flags *flags = &params->accept_flags;
2986     struct qed_public_vf_info *vf_info;
2987     u16 tlv_mask;
2988 
2989     tlv_mask = BIT(QED_IOV_VP_UPDATE_ACCEPT_PARAM) |
2990            BIT(QED_IOV_VP_UPDATE_ACCEPT_ANY_VLAN);
2991 
2992     /* Untrusted VFs can't even be trusted to know that fact.
2993      * Simply indicate everything is configured fine, and trace
2994      * configuration 'behind their back'.
2995      */
2996     if (!(*tlvs & tlv_mask))
2997         return 0;
2998 
2999     vf_info = qed_iov_get_public_vf_info(hwfn, vfid, true);
3000 
3001     if (flags->update_rx_mode_config) {
3002         vf_info->rx_accept_mode = flags->rx_accept_filter;
3003         if (!vf_info->is_trusted_configured)
3004             flags->rx_accept_filter &= ~mask;
3005     }
3006 
3007     if (flags->update_tx_mode_config) {
3008         vf_info->tx_accept_mode = flags->tx_accept_filter;
3009         if (!vf_info->is_trusted_configured)
3010             flags->tx_accept_filter &= ~mask;
3011     }
3012 
3013     if (params->update_accept_any_vlan_flg) {
3014         vf_info->accept_any_vlan = params->accept_any_vlan;
3015 
3016         if (vf_info->forced_vlan && !vf_info->is_trusted_configured)
3017             params->accept_any_vlan = false;
3018     }
3019 
3020     return 0;
3021 }
3022 
3023 static void qed_iov_vf_mbx_vport_update(struct qed_hwfn *p_hwfn,
3024                     struct qed_ptt *p_ptt,
3025                     struct qed_vf_info *vf)
3026 {
3027     struct qed_rss_params *p_rss_params = NULL;
3028     struct qed_sp_vport_update_params params;
3029     struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
3030     struct qed_sge_tpa_params sge_tpa_params;
3031     u16 tlvs_mask = 0, tlvs_accepted = 0;
3032     u8 status = PFVF_STATUS_SUCCESS;
3033     u16 length;
3034     int rc;
3035 
3036     /* Valiate PF can send such a request */
3037     if (!vf->vport_instance) {
3038         DP_VERBOSE(p_hwfn,
3039                QED_MSG_IOV,
3040                "No VPORT instance available for VF[%d], failing vport update\n",
3041                vf->abs_vf_id);
3042         status = PFVF_STATUS_FAILURE;
3043         goto out;
3044     }
3045     p_rss_params = vzalloc(sizeof(*p_rss_params));
3046     if (!p_rss_params) {
3047         status = PFVF_STATUS_FAILURE;
3048         goto out;
3049     }
3050 
3051     memset(&params, 0, sizeof(params));
3052     params.opaque_fid = vf->opaque_fid;
3053     params.vport_id = vf->vport_id;
3054     params.rss_params = NULL;
3055 
3056     /* Search for extended tlvs list and update values
3057      * from VF in struct qed_sp_vport_update_params.
3058      */
3059     qed_iov_vp_update_act_param(p_hwfn, &params, mbx, &tlvs_mask);
3060     qed_iov_vp_update_vlan_param(p_hwfn, &params, vf, mbx, &tlvs_mask);
3061     qed_iov_vp_update_tx_switch(p_hwfn, &params, mbx, &tlvs_mask);
3062     qed_iov_vp_update_mcast_bin_param(p_hwfn, &params, mbx, &tlvs_mask);
3063     qed_iov_vp_update_accept_flag(p_hwfn, &params, mbx, &tlvs_mask);
3064     qed_iov_vp_update_accept_any_vlan(p_hwfn, &params, mbx, &tlvs_mask);
3065     qed_iov_vp_update_sge_tpa_param(p_hwfn, vf, &params,
3066                     &sge_tpa_params, mbx, &tlvs_mask);
3067 
3068     tlvs_accepted = tlvs_mask;
3069 
3070     /* Some of the extended TLVs need to be validated first; In that case,
3071      * they can update the mask without updating the accepted [so that
3072      * PF could communicate to VF it has rejected request].
3073      */
3074     qed_iov_vp_update_rss_param(p_hwfn, vf, &params, p_rss_params,
3075                     mbx, &tlvs_mask, &tlvs_accepted);
3076 
3077     if (qed_iov_pre_update_vport(p_hwfn, vf->relative_vf_id,
3078                      &params, &tlvs_accepted)) {
3079         tlvs_accepted = 0;
3080         status = PFVF_STATUS_NOT_SUPPORTED;
3081         goto out;
3082     }
3083 
3084     if (!tlvs_accepted) {
3085         if (tlvs_mask)
3086             DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3087                    "Upper-layer prevents VF vport configuration\n");
3088         else
3089             DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3090                    "No feature tlvs found for vport update\n");
3091         status = PFVF_STATUS_NOT_SUPPORTED;
3092         goto out;
3093     }
3094 
3095     rc = qed_sp_vport_update(p_hwfn, &params, QED_SPQ_MODE_EBLOCK, NULL);
3096 
3097     if (rc)
3098         status = PFVF_STATUS_FAILURE;
3099 
3100 out:
3101     vfree(p_rss_params);
3102     length = qed_iov_prep_vp_update_resp_tlvs(p_hwfn, vf, mbx, status,
3103                           tlvs_mask, tlvs_accepted);
3104     qed_iov_send_response(p_hwfn, p_ptt, vf, length, status);
3105 }
3106 
3107 static int qed_iov_vf_update_vlan_shadow(struct qed_hwfn *p_hwfn,
3108                      struct qed_vf_info *p_vf,
3109                      struct qed_filter_ucast *p_params)
3110 {
3111     int i;
3112 
3113     /* First remove entries and then add new ones */
3114     if (p_params->opcode == QED_FILTER_REMOVE) {
3115         for (i = 0; i < QED_ETH_VF_NUM_VLAN_FILTERS + 1; i++)
3116             if (p_vf->shadow_config.vlans[i].used &&
3117                 p_vf->shadow_config.vlans[i].vid ==
3118                 p_params->vlan) {
3119                 p_vf->shadow_config.vlans[i].used = false;
3120                 break;
3121             }
3122         if (i == QED_ETH_VF_NUM_VLAN_FILTERS + 1) {
3123             DP_VERBOSE(p_hwfn,
3124                    QED_MSG_IOV,
3125                    "VF [%d] - Tries to remove a non-existing vlan\n",
3126                    p_vf->relative_vf_id);
3127             return -EINVAL;
3128         }
3129     } else if (p_params->opcode == QED_FILTER_REPLACE ||
3130            p_params->opcode == QED_FILTER_FLUSH) {
3131         for (i = 0; i < QED_ETH_VF_NUM_VLAN_FILTERS + 1; i++)
3132             p_vf->shadow_config.vlans[i].used = false;
3133     }
3134 
3135     /* In forced mode, we're willing to remove entries - but we don't add
3136      * new ones.
3137      */
3138     if (p_vf->bulletin.p_virt->valid_bitmap & BIT(VLAN_ADDR_FORCED))
3139         return 0;
3140 
3141     if (p_params->opcode == QED_FILTER_ADD ||
3142         p_params->opcode == QED_FILTER_REPLACE) {
3143         for (i = 0; i < QED_ETH_VF_NUM_VLAN_FILTERS + 1; i++) {
3144             if (p_vf->shadow_config.vlans[i].used)
3145                 continue;
3146 
3147             p_vf->shadow_config.vlans[i].used = true;
3148             p_vf->shadow_config.vlans[i].vid = p_params->vlan;
3149             break;
3150         }
3151 
3152         if (i == QED_ETH_VF_NUM_VLAN_FILTERS + 1) {
3153             DP_VERBOSE(p_hwfn,
3154                    QED_MSG_IOV,
3155                    "VF [%d] - Tries to configure more than %d vlan filters\n",
3156                    p_vf->relative_vf_id,
3157                    QED_ETH_VF_NUM_VLAN_FILTERS + 1);
3158             return -EINVAL;
3159         }
3160     }
3161 
3162     return 0;
3163 }
3164 
3165 static int qed_iov_vf_update_mac_shadow(struct qed_hwfn *p_hwfn,
3166                     struct qed_vf_info *p_vf,
3167                     struct qed_filter_ucast *p_params)
3168 {
3169     int i;
3170 
3171     /* If we're in forced-mode, we don't allow any change */
3172     if (p_vf->bulletin.p_virt->valid_bitmap & BIT(MAC_ADDR_FORCED))
3173         return 0;
3174 
3175     /* Don't keep track of shadow copy since we don't intend to restore. */
3176     if (p_vf->p_vf_info.is_trusted_configured)
3177         return 0;
3178 
3179     /* First remove entries and then add new ones */
3180     if (p_params->opcode == QED_FILTER_REMOVE) {
3181         for (i = 0; i < QED_ETH_VF_NUM_MAC_FILTERS; i++) {
3182             if (ether_addr_equal(p_vf->shadow_config.macs[i],
3183                          p_params->mac)) {
3184                 eth_zero_addr(p_vf->shadow_config.macs[i]);
3185                 break;
3186             }
3187         }
3188 
3189         if (i == QED_ETH_VF_NUM_MAC_FILTERS) {
3190             DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3191                    "MAC isn't configured\n");
3192             return -EINVAL;
3193         }
3194     } else if (p_params->opcode == QED_FILTER_REPLACE ||
3195            p_params->opcode == QED_FILTER_FLUSH) {
3196         for (i = 0; i < QED_ETH_VF_NUM_MAC_FILTERS; i++)
3197             eth_zero_addr(p_vf->shadow_config.macs[i]);
3198     }
3199 
3200     /* List the new MAC address */
3201     if (p_params->opcode != QED_FILTER_ADD &&
3202         p_params->opcode != QED_FILTER_REPLACE)
3203         return 0;
3204 
3205     for (i = 0; i < QED_ETH_VF_NUM_MAC_FILTERS; i++) {
3206         if (is_zero_ether_addr(p_vf->shadow_config.macs[i])) {
3207             ether_addr_copy(p_vf->shadow_config.macs[i],
3208                     p_params->mac);
3209             DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3210                    "Added MAC at %d entry in shadow\n", i);
3211             break;
3212         }
3213     }
3214 
3215     if (i == QED_ETH_VF_NUM_MAC_FILTERS) {
3216         DP_VERBOSE(p_hwfn, QED_MSG_IOV, "No available place for MAC\n");
3217         return -EINVAL;
3218     }
3219 
3220     return 0;
3221 }
3222 
3223 static int
3224 qed_iov_vf_update_unicast_shadow(struct qed_hwfn *p_hwfn,
3225                  struct qed_vf_info *p_vf,
3226                  struct qed_filter_ucast *p_params)
3227 {
3228     int rc = 0;
3229 
3230     if (p_params->type == QED_FILTER_MAC) {
3231         rc = qed_iov_vf_update_mac_shadow(p_hwfn, p_vf, p_params);
3232         if (rc)
3233             return rc;
3234     }
3235 
3236     if (p_params->type == QED_FILTER_VLAN)
3237         rc = qed_iov_vf_update_vlan_shadow(p_hwfn, p_vf, p_params);
3238 
3239     return rc;
3240 }
3241 
3242 static int qed_iov_chk_ucast(struct qed_hwfn *hwfn,
3243                  int vfid, struct qed_filter_ucast *params)
3244 {
3245     struct qed_public_vf_info *vf;
3246 
3247     vf = qed_iov_get_public_vf_info(hwfn, vfid, true);
3248     if (!vf)
3249         return -EINVAL;
3250 
3251     /* No real decision to make; Store the configured MAC */
3252     if (params->type == QED_FILTER_MAC ||
3253         params->type == QED_FILTER_MAC_VLAN) {
3254         ether_addr_copy(vf->mac, params->mac);
3255 
3256         if (vf->is_trusted_configured) {
3257             qed_iov_bulletin_set_mac(hwfn, vf->mac, vfid);
3258 
3259             /* Update and post bulleitin again */
3260             qed_schedule_iov(hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
3261         }
3262     }
3263 
3264     return 0;
3265 }
3266 
3267 static void qed_iov_vf_mbx_ucast_filter(struct qed_hwfn *p_hwfn,
3268                     struct qed_ptt *p_ptt,
3269                     struct qed_vf_info *vf)
3270 {
3271     struct qed_bulletin_content *p_bulletin = vf->bulletin.p_virt;
3272     struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
3273     struct vfpf_ucast_filter_tlv *req;
3274     u8 status = PFVF_STATUS_SUCCESS;
3275     struct qed_filter_ucast params;
3276     int rc;
3277 
3278     /* Prepare the unicast filter params */
3279     memset(&params, 0, sizeof(struct qed_filter_ucast));
3280     req = &mbx->req_virt->ucast_filter;
3281     params.opcode = (enum qed_filter_opcode)req->opcode;
3282     params.type = (enum qed_filter_ucast_type)req->type;
3283 
3284     params.is_rx_filter = 1;
3285     params.is_tx_filter = 1;
3286     params.vport_to_remove_from = vf->vport_id;
3287     params.vport_to_add_to = vf->vport_id;
3288     memcpy(params.mac, req->mac, ETH_ALEN);
3289     params.vlan = req->vlan;
3290 
3291     DP_VERBOSE(p_hwfn,
3292            QED_MSG_IOV,
3293            "VF[%d]: opcode 0x%02x type 0x%02x [%s %s] [vport 0x%02x] MAC %pM, vlan 0x%04x\n",
3294            vf->abs_vf_id, params.opcode, params.type,
3295            params.is_rx_filter ? "RX" : "",
3296            params.is_tx_filter ? "TX" : "",
3297            params.vport_to_add_to,
3298            params.mac, params.vlan);
3299 
3300     if (!vf->vport_instance) {
3301         DP_VERBOSE(p_hwfn,
3302                QED_MSG_IOV,
3303                "No VPORT instance available for VF[%d], failing ucast MAC configuration\n",
3304                vf->abs_vf_id);
3305         status = PFVF_STATUS_FAILURE;
3306         goto out;
3307     }
3308 
3309     /* Update shadow copy of the VF configuration */
3310     if (qed_iov_vf_update_unicast_shadow(p_hwfn, vf, &params)) {
3311         status = PFVF_STATUS_FAILURE;
3312         goto out;
3313     }
3314 
3315     /* Determine if the unicast filtering is acceptible by PF */
3316     if ((p_bulletin->valid_bitmap & BIT(VLAN_ADDR_FORCED)) &&
3317         (params.type == QED_FILTER_VLAN ||
3318          params.type == QED_FILTER_MAC_VLAN)) {
3319         /* Once VLAN is forced or PVID is set, do not allow
3320          * to add/replace any further VLANs.
3321          */
3322         if (params.opcode == QED_FILTER_ADD ||
3323             params.opcode == QED_FILTER_REPLACE)
3324             status = PFVF_STATUS_FORCED;
3325         goto out;
3326     }
3327 
3328     if ((p_bulletin->valid_bitmap & BIT(MAC_ADDR_FORCED)) &&
3329         (params.type == QED_FILTER_MAC ||
3330          params.type == QED_FILTER_MAC_VLAN)) {
3331         if (!ether_addr_equal(p_bulletin->mac, params.mac) ||
3332             (params.opcode != QED_FILTER_ADD &&
3333              params.opcode != QED_FILTER_REPLACE))
3334             status = PFVF_STATUS_FORCED;
3335         goto out;
3336     }
3337 
3338     rc = qed_iov_chk_ucast(p_hwfn, vf->relative_vf_id, &params);
3339     if (rc) {
3340         status = PFVF_STATUS_FAILURE;
3341         goto out;
3342     }
3343 
3344     rc = qed_sp_eth_filter_ucast(p_hwfn, vf->opaque_fid, &params,
3345                      QED_SPQ_MODE_CB, NULL);
3346     if (rc)
3347         status = PFVF_STATUS_FAILURE;
3348 
3349 out:
3350     qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_UCAST_FILTER,
3351                  sizeof(struct pfvf_def_resp_tlv), status);
3352 }
3353 
3354 static void qed_iov_vf_mbx_int_cleanup(struct qed_hwfn *p_hwfn,
3355                        struct qed_ptt *p_ptt,
3356                        struct qed_vf_info *vf)
3357 {
3358     int i;
3359 
3360     /* Reset the SBs */
3361     for (i = 0; i < vf->num_sbs; i++)
3362         qed_int_igu_init_pure_rt_single(p_hwfn, p_ptt,
3363                         vf->igu_sbs[i],
3364                         vf->opaque_fid, false);
3365 
3366     qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_INT_CLEANUP,
3367                  sizeof(struct pfvf_def_resp_tlv),
3368                  PFVF_STATUS_SUCCESS);
3369 }
3370 
3371 static void qed_iov_vf_mbx_close(struct qed_hwfn *p_hwfn,
3372                  struct qed_ptt *p_ptt, struct qed_vf_info *vf)
3373 {
3374     u16 length = sizeof(struct pfvf_def_resp_tlv);
3375     u8 status = PFVF_STATUS_SUCCESS;
3376 
3377     /* Disable Interrupts for VF */
3378     qed_iov_vf_igu_set_int(p_hwfn, p_ptt, vf, 0);
3379 
3380     /* Reset Permission table */
3381     qed_iov_config_perm_table(p_hwfn, p_ptt, vf, 0);
3382 
3383     qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_CLOSE,
3384                  length, status);
3385 }
3386 
3387 static void qed_iov_vf_mbx_release(struct qed_hwfn *p_hwfn,
3388                    struct qed_ptt *p_ptt,
3389                    struct qed_vf_info *p_vf)
3390 {
3391     u16 length = sizeof(struct pfvf_def_resp_tlv);
3392     u8 status = PFVF_STATUS_SUCCESS;
3393     int rc = 0;
3394 
3395     qed_iov_vf_cleanup(p_hwfn, p_vf);
3396 
3397     if (p_vf->state != VF_STOPPED && p_vf->state != VF_FREE) {
3398         /* Stopping the VF */
3399         rc = qed_sp_vf_stop(p_hwfn, p_vf->concrete_fid,
3400                     p_vf->opaque_fid);
3401 
3402         if (rc) {
3403             DP_ERR(p_hwfn, "qed_sp_vf_stop returned error %d\n",
3404                    rc);
3405             status = PFVF_STATUS_FAILURE;
3406         }
3407 
3408         p_vf->state = VF_STOPPED;
3409     }
3410 
3411     qed_iov_prepare_resp(p_hwfn, p_ptt, p_vf, CHANNEL_TLV_RELEASE,
3412                  length, status);
3413 }
3414 
3415 static void qed_iov_vf_pf_get_coalesce(struct qed_hwfn *p_hwfn,
3416                        struct qed_ptt *p_ptt,
3417                        struct qed_vf_info *p_vf)
3418 {
3419     struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
3420     struct pfvf_read_coal_resp_tlv *p_resp;
3421     struct vfpf_read_coal_req_tlv *req;
3422     u8 status = PFVF_STATUS_FAILURE;
3423     struct qed_vf_queue *p_queue;
3424     struct qed_queue_cid *p_cid;
3425     u16 coal = 0, qid, i;
3426     bool b_is_rx;
3427     int rc = 0;
3428 
3429     mbx->offset = (u8 *)mbx->reply_virt;
3430     req = &mbx->req_virt->read_coal_req;
3431 
3432     qid = req->qid;
3433     b_is_rx = req->is_rx ? true : false;
3434 
3435     if (b_is_rx) {
3436         if (!qed_iov_validate_rxq(p_hwfn, p_vf, qid,
3437                       QED_IOV_VALIDATE_Q_ENABLE)) {
3438             DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3439                    "VF[%d]: Invalid Rx queue_id = %d\n",
3440                    p_vf->abs_vf_id, qid);
3441             goto send_resp;
3442         }
3443 
3444         p_cid = qed_iov_get_vf_rx_queue_cid(&p_vf->vf_queues[qid]);
3445         rc = qed_get_rxq_coalesce(p_hwfn, p_ptt, p_cid, &coal);
3446         if (rc)
3447             goto send_resp;
3448     } else {
3449         if (!qed_iov_validate_txq(p_hwfn, p_vf, qid,
3450                       QED_IOV_VALIDATE_Q_ENABLE)) {
3451             DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3452                    "VF[%d]: Invalid Tx queue_id = %d\n",
3453                    p_vf->abs_vf_id, qid);
3454             goto send_resp;
3455         }
3456         for (i = 0; i < MAX_QUEUES_PER_QZONE; i++) {
3457             p_queue = &p_vf->vf_queues[qid];
3458             if ((!p_queue->cids[i].p_cid) ||
3459                 (!p_queue->cids[i].b_is_tx))
3460                 continue;
3461 
3462             p_cid = p_queue->cids[i].p_cid;
3463 
3464             rc = qed_get_txq_coalesce(p_hwfn, p_ptt, p_cid, &coal);
3465             if (rc)
3466                 goto send_resp;
3467             break;
3468         }
3469     }
3470 
3471     status = PFVF_STATUS_SUCCESS;
3472 
3473 send_resp:
3474     p_resp = qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_COALESCE_READ,
3475                  sizeof(*p_resp));
3476     p_resp->coal = coal;
3477 
3478     qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
3479             sizeof(struct channel_list_end_tlv));
3480 
3481     qed_iov_send_response(p_hwfn, p_ptt, p_vf, sizeof(*p_resp), status);
3482 }
3483 
3484 static void qed_iov_vf_pf_set_coalesce(struct qed_hwfn *p_hwfn,
3485                        struct qed_ptt *p_ptt,
3486                        struct qed_vf_info *vf)
3487 {
3488     struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
3489     struct vfpf_update_coalesce *req;
3490     u8 status = PFVF_STATUS_FAILURE;
3491     struct qed_queue_cid *p_cid;
3492     u16 rx_coal, tx_coal;
3493     int rc = 0, i;
3494     u16 qid;
3495 
3496     req = &mbx->req_virt->update_coalesce;
3497 
3498     rx_coal = req->rx_coal;
3499     tx_coal = req->tx_coal;
3500     qid = req->qid;
3501 
3502     if (!qed_iov_validate_rxq(p_hwfn, vf, qid,
3503                   QED_IOV_VALIDATE_Q_ENABLE) && rx_coal) {
3504         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3505                "VF[%d]: Invalid Rx queue_id = %d\n",
3506                vf->abs_vf_id, qid);
3507         goto out;
3508     }
3509 
3510     if (!qed_iov_validate_txq(p_hwfn, vf, qid,
3511                   QED_IOV_VALIDATE_Q_ENABLE) && tx_coal) {
3512         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3513                "VF[%d]: Invalid Tx queue_id = %d\n",
3514                vf->abs_vf_id, qid);
3515         goto out;
3516     }
3517 
3518     DP_VERBOSE(p_hwfn,
3519            QED_MSG_IOV,
3520            "VF[%d]: Setting coalesce for VF rx_coal = %d, tx_coal = %d at queue = %d\n",
3521            vf->abs_vf_id, rx_coal, tx_coal, qid);
3522 
3523     if (rx_coal) {
3524         p_cid = qed_iov_get_vf_rx_queue_cid(&vf->vf_queues[qid]);
3525 
3526         rc = qed_set_rxq_coalesce(p_hwfn, p_ptt, rx_coal, p_cid);
3527         if (rc) {
3528             DP_VERBOSE(p_hwfn,
3529                    QED_MSG_IOV,
3530                    "VF[%d]: Unable to set rx queue = %d coalesce\n",
3531                    vf->abs_vf_id, vf->vf_queues[qid].fw_rx_qid);
3532             goto out;
3533         }
3534         vf->rx_coal = rx_coal;
3535     }
3536 
3537     if (tx_coal) {
3538         struct qed_vf_queue *p_queue = &vf->vf_queues[qid];
3539 
3540         for (i = 0; i < MAX_QUEUES_PER_QZONE; i++) {
3541             if (!p_queue->cids[i].p_cid)
3542                 continue;
3543 
3544             if (!p_queue->cids[i].b_is_tx)
3545                 continue;
3546 
3547             rc = qed_set_txq_coalesce(p_hwfn, p_ptt, tx_coal,
3548                           p_queue->cids[i].p_cid);
3549 
3550             if (rc) {
3551                 DP_VERBOSE(p_hwfn,
3552                        QED_MSG_IOV,
3553                        "VF[%d]: Unable to set tx queue coalesce\n",
3554                        vf->abs_vf_id);
3555                 goto out;
3556             }
3557         }
3558         vf->tx_coal = tx_coal;
3559     }
3560 
3561     status = PFVF_STATUS_SUCCESS;
3562 out:
3563     qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_COALESCE_UPDATE,
3564                  sizeof(struct pfvf_def_resp_tlv), status);
3565 }
3566 
3567 static int
3568 qed_iov_vf_flr_poll_dorq(struct qed_hwfn *p_hwfn,
3569              struct qed_vf_info *p_vf, struct qed_ptt *p_ptt)
3570 {
3571     int cnt;
3572     u32 val;
3573 
3574     qed_fid_pretend(p_hwfn, p_ptt, (u16)p_vf->concrete_fid);
3575 
3576     for (cnt = 0; cnt < 50; cnt++) {
3577         val = qed_rd(p_hwfn, p_ptt, DORQ_REG_VF_USAGE_CNT);
3578         if (!val)
3579             break;
3580         msleep(20);
3581     }
3582     qed_fid_pretend(p_hwfn, p_ptt, (u16)p_hwfn->hw_info.concrete_fid);
3583 
3584     if (cnt == 50) {
3585         DP_ERR(p_hwfn,
3586                "VF[%d] - dorq failed to cleanup [usage 0x%08x]\n",
3587                p_vf->abs_vf_id, val);
3588         return -EBUSY;
3589     }
3590 
3591     return 0;
3592 }
3593 
3594 #define MAX_NUM_EXT_VOQS        (MAX_NUM_PORTS * NUM_OF_TCS)
3595 
3596 static int
3597 qed_iov_vf_flr_poll_pbf(struct qed_hwfn *p_hwfn,
3598             struct qed_vf_info *p_vf, struct qed_ptt *p_ptt)
3599 {
3600     u32 prod, cons[MAX_NUM_EXT_VOQS], distance[MAX_NUM_EXT_VOQS], tmp;
3601     u8 max_phys_tcs_per_port = p_hwfn->qm_info.max_phys_tcs_per_port;
3602     u8 max_ports_per_engine = p_hwfn->cdev->num_ports_in_engine;
3603     u32 prod_voq0_addr = PBF_REG_NUM_BLOCKS_ALLOCATED_PROD_VOQ0;
3604     u32 cons_voq0_addr = PBF_REG_NUM_BLOCKS_ALLOCATED_CONS_VOQ0;
3605     u8 port_id, tc, tc_id = 0, voq = 0;
3606     int cnt;
3607 
3608     memset(cons, 0, MAX_NUM_EXT_VOQS * sizeof(u32));
3609     memset(distance, 0, MAX_NUM_EXT_VOQS * sizeof(u32));
3610 
3611     /* Read initial consumers & producers */
3612     for (port_id = 0; port_id < max_ports_per_engine; port_id++) {
3613         /* "max_phys_tcs_per_port" active TCs + 1 pure LB TC */
3614         for (tc = 0; tc < max_phys_tcs_per_port + 1; tc++) {
3615             tc_id = (tc < max_phys_tcs_per_port) ? tc : PURE_LB_TC;
3616             voq = VOQ(port_id, tc_id, max_phys_tcs_per_port);
3617             cons[voq] = qed_rd(p_hwfn, p_ptt,
3618                        cons_voq0_addr + voq * 0x40);
3619             prod = qed_rd(p_hwfn, p_ptt,
3620                       prod_voq0_addr + voq * 0x40);
3621             distance[voq] = prod - cons[voq];
3622         }
3623     }
3624 
3625     /* Wait for consumers to pass the producers */
3626     port_id = 0;
3627     tc = 0;
3628     for (cnt = 0; cnt < 50; cnt++) {
3629         for (; port_id < max_ports_per_engine; port_id++) {
3630             /* "max_phys_tcs_per_port" active TCs + 1 pure LB TC */
3631             for (; tc < max_phys_tcs_per_port + 1; tc++) {
3632                 tc_id = (tc < max_phys_tcs_per_port) ?
3633                     tc : PURE_LB_TC;
3634                 voq = VOQ(port_id,
3635                       tc_id, max_phys_tcs_per_port);
3636                 tmp = qed_rd(p_hwfn, p_ptt,
3637                          cons_voq0_addr + voq * 0x40);
3638                 if (distance[voq] > tmp - cons[voq])
3639                     break;
3640             }
3641 
3642             if (tc == max_phys_tcs_per_port + 1)
3643                 tc = 0;
3644             else
3645                 break;
3646         }
3647 
3648         if (port_id == max_ports_per_engine)
3649             break;
3650 
3651         msleep(20);
3652     }
3653 
3654     if (cnt == 50) {
3655         DP_ERR(p_hwfn, "VF[%d]: pbf poll failed on VOQ%d\n",
3656                p_vf->abs_vf_id, (int)voq);
3657 
3658         DP_ERR(p_hwfn, "VOQ %d has port_id as %d and tc_id as %d]\n",
3659                (int)voq, (int)port_id, (int)tc_id);
3660 
3661         return -EBUSY;
3662     }
3663 
3664     return 0;
3665 }
3666 
3667 static int qed_iov_vf_flr_poll(struct qed_hwfn *p_hwfn,
3668                    struct qed_vf_info *p_vf, struct qed_ptt *p_ptt)
3669 {
3670     int rc;
3671 
3672     rc = qed_iov_vf_flr_poll_dorq(p_hwfn, p_vf, p_ptt);
3673     if (rc)
3674         return rc;
3675 
3676     rc = qed_iov_vf_flr_poll_pbf(p_hwfn, p_vf, p_ptt);
3677     if (rc)
3678         return rc;
3679 
3680     return 0;
3681 }
3682 
3683 static int
3684 qed_iov_execute_vf_flr_cleanup(struct qed_hwfn *p_hwfn,
3685                    struct qed_ptt *p_ptt,
3686                    u16 rel_vf_id, u32 *ack_vfs)
3687 {
3688     struct qed_vf_info *p_vf;
3689     int rc = 0;
3690 
3691     p_vf = qed_iov_get_vf_info(p_hwfn, rel_vf_id, false);
3692     if (!p_vf)
3693         return 0;
3694 
3695     if (p_hwfn->pf_iov_info->pending_flr[rel_vf_id / 64] &
3696         (1ULL << (rel_vf_id % 64))) {
3697         u16 vfid = p_vf->abs_vf_id;
3698 
3699         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3700                "VF[%d] - Handling FLR\n", vfid);
3701 
3702         qed_iov_vf_cleanup(p_hwfn, p_vf);
3703 
3704         /* If VF isn't active, no need for anything but SW */
3705         if (!p_vf->b_init)
3706             goto cleanup;
3707 
3708         rc = qed_iov_vf_flr_poll(p_hwfn, p_vf, p_ptt);
3709         if (rc)
3710             goto cleanup;
3711 
3712         rc = qed_final_cleanup(p_hwfn, p_ptt, vfid, true);
3713         if (rc) {
3714             DP_ERR(p_hwfn, "Failed handle FLR of VF[%d]\n", vfid);
3715             return rc;
3716         }
3717 
3718         /* Workaround to make VF-PF channel ready, as FW
3719          * doesn't do that as a part of FLR.
3720          */
3721         REG_WR(p_hwfn,
3722                GET_GTT_REG_ADDR(GTT_BAR0_MAP_REG_USDM_RAM,
3723                     USTORM_VF_PF_CHANNEL_READY, vfid), 1);
3724 
3725         /* VF_STOPPED has to be set only after final cleanup
3726          * but prior to re-enabling the VF.
3727          */
3728         p_vf->state = VF_STOPPED;
3729 
3730         rc = qed_iov_enable_vf_access(p_hwfn, p_ptt, p_vf);
3731         if (rc) {
3732             DP_ERR(p_hwfn, "Failed to re-enable VF[%d] acces\n",
3733                    vfid);
3734             return rc;
3735         }
3736 cleanup:
3737         /* Mark VF for ack and clean pending state */
3738         if (p_vf->state == VF_RESET)
3739             p_vf->state = VF_STOPPED;
3740         ack_vfs[vfid / 32] |= BIT((vfid % 32));
3741         p_hwfn->pf_iov_info->pending_flr[rel_vf_id / 64] &=
3742             ~(1ULL << (rel_vf_id % 64));
3743         p_vf->vf_mbx.b_pending_msg = false;
3744     }
3745 
3746     return rc;
3747 }
3748 
3749 static int
3750 qed_iov_vf_flr_cleanup(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
3751 {
3752     u32 ack_vfs[VF_MAX_STATIC / 32];
3753     int rc = 0;
3754     u16 i;
3755 
3756     memset(ack_vfs, 0, sizeof(u32) * (VF_MAX_STATIC / 32));
3757 
3758     /* Since BRB <-> PRS interface can't be tested as part of the flr
3759      * polling due to HW limitations, simply sleep a bit. And since
3760      * there's no need to wait per-vf, do it before looping.
3761      */
3762     msleep(100);
3763 
3764     for (i = 0; i < p_hwfn->cdev->p_iov_info->total_vfs; i++)
3765         qed_iov_execute_vf_flr_cleanup(p_hwfn, p_ptt, i, ack_vfs);
3766 
3767     rc = qed_mcp_ack_vf_flr(p_hwfn, p_ptt, ack_vfs);
3768     return rc;
3769 }
3770 
3771 bool qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn, u32 *p_disabled_vfs)
3772 {
3773     bool found = false;
3774     u16 i;
3775 
3776     DP_VERBOSE(p_hwfn, QED_MSG_IOV, "Marking FLR-ed VFs\n");
3777     for (i = 0; i < (VF_MAX_STATIC / 32); i++)
3778         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3779                "[%08x,...,%08x]: %08x\n",
3780                i * 32, (i + 1) * 32 - 1, p_disabled_vfs[i]);
3781 
3782     if (!p_hwfn->cdev->p_iov_info) {
3783         DP_NOTICE(p_hwfn, "VF flr but no IOV\n");
3784         return false;
3785     }
3786 
3787     /* Mark VFs */
3788     for (i = 0; i < p_hwfn->cdev->p_iov_info->total_vfs; i++) {
3789         struct qed_vf_info *p_vf;
3790         u8 vfid;
3791 
3792         p_vf = qed_iov_get_vf_info(p_hwfn, i, false);
3793         if (!p_vf)
3794             continue;
3795 
3796         vfid = p_vf->abs_vf_id;
3797         if (BIT((vfid % 32)) & p_disabled_vfs[vfid / 32]) {
3798             u64 *p_flr = p_hwfn->pf_iov_info->pending_flr;
3799             u16 rel_vf_id = p_vf->relative_vf_id;
3800 
3801             DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3802                    "VF[%d] [rel %d] got FLR-ed\n",
3803                    vfid, rel_vf_id);
3804 
3805             p_vf->state = VF_RESET;
3806 
3807             /* No need to lock here, since pending_flr should
3808              * only change here and before ACKing MFw. Since
3809              * MFW will not trigger an additional attention for
3810              * VF flr until ACKs, we're safe.
3811              */
3812             p_flr[rel_vf_id / 64] |= 1ULL << (rel_vf_id % 64);
3813             found = true;
3814         }
3815     }
3816 
3817     return found;
3818 }
3819 
3820 static int qed_iov_get_link(struct qed_hwfn *p_hwfn,
3821                 u16 vfid,
3822                 struct qed_mcp_link_params *p_params,
3823                 struct qed_mcp_link_state *p_link,
3824                 struct qed_mcp_link_capabilities *p_caps)
3825 {
3826     struct qed_vf_info *p_vf = qed_iov_get_vf_info(p_hwfn,
3827                                vfid,
3828                                false);
3829     struct qed_bulletin_content *p_bulletin;
3830 
3831     if (!p_vf)
3832         return -EINVAL;
3833 
3834     p_bulletin = p_vf->bulletin.p_virt;
3835 
3836     if (p_params)
3837         __qed_vf_get_link_params(p_hwfn, p_params, p_bulletin);
3838     if (p_link)
3839         __qed_vf_get_link_state(p_hwfn, p_link, p_bulletin);
3840     if (p_caps)
3841         __qed_vf_get_link_caps(p_hwfn, p_caps, p_bulletin);
3842     return 0;
3843 }
3844 
3845 static int
3846 qed_iov_vf_pf_bulletin_update_mac(struct qed_hwfn *p_hwfn,
3847                   struct qed_ptt *p_ptt,
3848                   struct qed_vf_info *p_vf)
3849 {
3850     struct qed_bulletin_content *p_bulletin = p_vf->bulletin.p_virt;
3851     struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
3852     struct vfpf_bulletin_update_mac_tlv *p_req;
3853     u8 status = PFVF_STATUS_SUCCESS;
3854     int rc = 0;
3855 
3856     if (!p_vf->p_vf_info.is_trusted_configured) {
3857         DP_VERBOSE(p_hwfn,
3858                QED_MSG_IOV,
3859                "Blocking bulletin update request from untrusted VF[%d]\n",
3860                p_vf->abs_vf_id);
3861         status = PFVF_STATUS_NOT_SUPPORTED;
3862         rc = -EINVAL;
3863         goto send_status;
3864     }
3865 
3866     p_req = &mbx->req_virt->bulletin_update_mac;
3867     ether_addr_copy(p_bulletin->mac, p_req->mac);
3868     DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3869            "Updated bulletin of VF[%d] with requested MAC[%pM]\n",
3870            p_vf->abs_vf_id, p_req->mac);
3871 
3872 send_status:
3873     qed_iov_prepare_resp(p_hwfn, p_ptt, p_vf,
3874                  CHANNEL_TLV_BULLETIN_UPDATE_MAC,
3875                  sizeof(struct pfvf_def_resp_tlv), status);
3876     return rc;
3877 }
3878 
3879 static void qed_iov_process_mbx_req(struct qed_hwfn *p_hwfn,
3880                     struct qed_ptt *p_ptt, int vfid)
3881 {
3882     struct qed_iov_vf_mbx *mbx;
3883     struct qed_vf_info *p_vf;
3884 
3885     p_vf = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
3886     if (!p_vf)
3887         return;
3888 
3889     mbx = &p_vf->vf_mbx;
3890 
3891     /* qed_iov_process_mbx_request */
3892     if (!mbx->b_pending_msg) {
3893         DP_NOTICE(p_hwfn,
3894               "VF[%02x]: Trying to process mailbox message when none is pending\n",
3895               p_vf->abs_vf_id);
3896         return;
3897     }
3898     mbx->b_pending_msg = false;
3899 
3900     mbx->first_tlv = mbx->req_virt->first_tlv;
3901 
3902     DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3903            "VF[%02x]: Processing mailbox message [type %04x]\n",
3904            p_vf->abs_vf_id, mbx->first_tlv.tl.type);
3905 
3906     /* check if tlv type is known */
3907     if (qed_iov_tlv_supported(mbx->first_tlv.tl.type) &&
3908         !p_vf->b_malicious) {
3909         switch (mbx->first_tlv.tl.type) {
3910         case CHANNEL_TLV_ACQUIRE:
3911             qed_iov_vf_mbx_acquire(p_hwfn, p_ptt, p_vf);
3912             break;
3913         case CHANNEL_TLV_VPORT_START:
3914             qed_iov_vf_mbx_start_vport(p_hwfn, p_ptt, p_vf);
3915             break;
3916         case CHANNEL_TLV_VPORT_TEARDOWN:
3917             qed_iov_vf_mbx_stop_vport(p_hwfn, p_ptt, p_vf);
3918             break;
3919         case CHANNEL_TLV_START_RXQ:
3920             qed_iov_vf_mbx_start_rxq(p_hwfn, p_ptt, p_vf);
3921             break;
3922         case CHANNEL_TLV_START_TXQ:
3923             qed_iov_vf_mbx_start_txq(p_hwfn, p_ptt, p_vf);
3924             break;
3925         case CHANNEL_TLV_STOP_RXQS:
3926             qed_iov_vf_mbx_stop_rxqs(p_hwfn, p_ptt, p_vf);
3927             break;
3928         case CHANNEL_TLV_STOP_TXQS:
3929             qed_iov_vf_mbx_stop_txqs(p_hwfn, p_ptt, p_vf);
3930             break;
3931         case CHANNEL_TLV_UPDATE_RXQ:
3932             qed_iov_vf_mbx_update_rxqs(p_hwfn, p_ptt, p_vf);
3933             break;
3934         case CHANNEL_TLV_VPORT_UPDATE:
3935             qed_iov_vf_mbx_vport_update(p_hwfn, p_ptt, p_vf);
3936             break;
3937         case CHANNEL_TLV_UCAST_FILTER:
3938             qed_iov_vf_mbx_ucast_filter(p_hwfn, p_ptt, p_vf);
3939             break;
3940         case CHANNEL_TLV_CLOSE:
3941             qed_iov_vf_mbx_close(p_hwfn, p_ptt, p_vf);
3942             break;
3943         case CHANNEL_TLV_INT_CLEANUP:
3944             qed_iov_vf_mbx_int_cleanup(p_hwfn, p_ptt, p_vf);
3945             break;
3946         case CHANNEL_TLV_RELEASE:
3947             qed_iov_vf_mbx_release(p_hwfn, p_ptt, p_vf);
3948             break;
3949         case CHANNEL_TLV_UPDATE_TUNN_PARAM:
3950             qed_iov_vf_mbx_update_tunn_param(p_hwfn, p_ptt, p_vf);
3951             break;
3952         case CHANNEL_TLV_COALESCE_UPDATE:
3953             qed_iov_vf_pf_set_coalesce(p_hwfn, p_ptt, p_vf);
3954             break;
3955         case CHANNEL_TLV_COALESCE_READ:
3956             qed_iov_vf_pf_get_coalesce(p_hwfn, p_ptt, p_vf);
3957             break;
3958         case CHANNEL_TLV_BULLETIN_UPDATE_MAC:
3959             qed_iov_vf_pf_bulletin_update_mac(p_hwfn, p_ptt, p_vf);
3960             break;
3961         }
3962     } else if (qed_iov_tlv_supported(mbx->first_tlv.tl.type)) {
3963         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3964                "VF [%02x] - considered malicious; Ignoring TLV [%04x]\n",
3965                p_vf->abs_vf_id, mbx->first_tlv.tl.type);
3966 
3967         qed_iov_prepare_resp(p_hwfn, p_ptt, p_vf,
3968                      mbx->first_tlv.tl.type,
3969                      sizeof(struct pfvf_def_resp_tlv),
3970                      PFVF_STATUS_MALICIOUS);
3971     } else {
3972         /* unknown TLV - this may belong to a VF driver from the future
3973          * - a version written after this PF driver was written, which
3974          * supports features unknown as of yet. Too bad since we don't
3975          * support them. Or this may be because someone wrote a crappy
3976          * VF driver and is sending garbage over the channel.
3977          */
3978         DP_NOTICE(p_hwfn,
3979               "VF[%02x]: unknown TLV. type %04x length %04x padding %08x reply address %llu\n",
3980               p_vf->abs_vf_id,
3981               mbx->first_tlv.tl.type,
3982               mbx->first_tlv.tl.length,
3983               mbx->first_tlv.padding, mbx->first_tlv.reply_address);
3984 
3985         /* Try replying in case reply address matches the acquisition's
3986          * posted address.
3987          */
3988         if (p_vf->acquire.first_tlv.reply_address &&
3989             (mbx->first_tlv.reply_address ==
3990              p_vf->acquire.first_tlv.reply_address)) {
3991             qed_iov_prepare_resp(p_hwfn, p_ptt, p_vf,
3992                          mbx->first_tlv.tl.type,
3993                          sizeof(struct pfvf_def_resp_tlv),
3994                          PFVF_STATUS_NOT_SUPPORTED);
3995         } else {
3996             DP_VERBOSE(p_hwfn,
3997                    QED_MSG_IOV,
3998                    "VF[%02x]: Can't respond to TLV - no valid reply address\n",
3999                    p_vf->abs_vf_id);
4000         }
4001     }
4002 }
4003 
4004 static void qed_iov_pf_get_pending_events(struct qed_hwfn *p_hwfn, u64 *events)
4005 {
4006     int i;
4007 
4008     memset(events, 0, sizeof(u64) * QED_VF_ARRAY_LENGTH);
4009 
4010     qed_for_each_vf(p_hwfn, i) {
4011         struct qed_vf_info *p_vf;
4012 
4013         p_vf = &p_hwfn->pf_iov_info->vfs_array[i];
4014         if (p_vf->vf_mbx.b_pending_msg)
4015             events[i / 64] |= 1ULL << (i % 64);
4016     }
4017 }
4018 
4019 static struct qed_vf_info *qed_sriov_get_vf_from_absid(struct qed_hwfn *p_hwfn,
4020                                u16 abs_vfid)
4021 {
4022     u8 min = (u8)p_hwfn->cdev->p_iov_info->first_vf_in_pf;
4023 
4024     if (!_qed_iov_pf_sanity_check(p_hwfn, (int)abs_vfid - min, false)) {
4025         DP_VERBOSE(p_hwfn,
4026                QED_MSG_IOV,
4027                "Got indication for VF [abs 0x%08x] that cannot be handled by PF\n",
4028                abs_vfid);
4029         return NULL;
4030     }
4031 
4032     return &p_hwfn->pf_iov_info->vfs_array[(u8)abs_vfid - min];
4033 }
4034 
4035 static int qed_sriov_vfpf_msg(struct qed_hwfn *p_hwfn,
4036                   u16 abs_vfid, struct regpair *vf_msg)
4037 {
4038     struct qed_vf_info *p_vf = qed_sriov_get_vf_from_absid(p_hwfn,
4039                abs_vfid);
4040 
4041     if (!p_vf)
4042         return 0;
4043 
4044     /* List the physical address of the request so that handler
4045      * could later on copy the message from it.
4046      */
4047     p_vf->vf_mbx.pending_req = HILO_64(vf_msg->hi, vf_msg->lo);
4048 
4049     /* Mark the event and schedule the workqueue */
4050     p_vf->vf_mbx.b_pending_msg = true;
4051     qed_schedule_iov(p_hwfn, QED_IOV_WQ_MSG_FLAG);
4052 
4053     return 0;
4054 }
4055 
4056 void qed_sriov_vfpf_malicious(struct qed_hwfn *p_hwfn,
4057                   struct fw_err_data *p_data)
4058 {
4059     struct qed_vf_info *p_vf;
4060 
4061     p_vf = qed_sriov_get_vf_from_absid(p_hwfn, qed_vf_from_entity_id
4062                        (p_data->entity_id));
4063     if (!p_vf)
4064         return;
4065 
4066     if (!p_vf->b_malicious) {
4067         DP_NOTICE(p_hwfn,
4068               "VF [%d] - Malicious behavior [%02x]\n",
4069               p_vf->abs_vf_id, p_data->err_id);
4070 
4071         p_vf->b_malicious = true;
4072     } else {
4073         DP_INFO(p_hwfn,
4074             "VF [%d] - Malicious behavior [%02x]\n",
4075             p_vf->abs_vf_id, p_data->err_id);
4076     }
4077 }
4078 
4079 int qed_sriov_eqe_event(struct qed_hwfn *p_hwfn, u8 opcode, __le16 echo,
4080             union event_ring_data *data, u8 fw_return_code)
4081 {
4082     switch (opcode) {
4083     case COMMON_EVENT_VF_PF_CHANNEL:
4084         return qed_sriov_vfpf_msg(p_hwfn, le16_to_cpu(echo),
4085                       &data->vf_pf_channel.msg_addr);
4086     default:
4087         DP_INFO(p_hwfn->cdev, "Unknown sriov eqe event 0x%02x\n",
4088             opcode);
4089         return -EINVAL;
4090     }
4091 }
4092 
4093 u16 qed_iov_get_next_active_vf(struct qed_hwfn *p_hwfn, u16 rel_vf_id)
4094 {
4095     struct qed_hw_sriov_info *p_iov = p_hwfn->cdev->p_iov_info;
4096     u16 i;
4097 
4098     if (!p_iov)
4099         goto out;
4100 
4101     for (i = rel_vf_id; i < p_iov->total_vfs; i++)
4102         if (qed_iov_is_valid_vfid(p_hwfn, rel_vf_id, true, false))
4103             return i;
4104 
4105 out:
4106     return MAX_NUM_VFS;
4107 }
4108 
4109 static int qed_iov_copy_vf_msg(struct qed_hwfn *p_hwfn, struct qed_ptt *ptt,
4110                    int vfid)
4111 {
4112     struct qed_dmae_params params;
4113     struct qed_vf_info *vf_info;
4114 
4115     vf_info = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
4116     if (!vf_info)
4117         return -EINVAL;
4118 
4119     memset(&params, 0, sizeof(params));
4120     SET_FIELD(params.flags, QED_DMAE_PARAMS_SRC_VF_VALID, 0x1);
4121     SET_FIELD(params.flags, QED_DMAE_PARAMS_COMPLETION_DST, 0x1);
4122     params.src_vfid = vf_info->abs_vf_id;
4123 
4124     if (qed_dmae_host2host(p_hwfn, ptt,
4125                    vf_info->vf_mbx.pending_req,
4126                    vf_info->vf_mbx.req_phys,
4127                    sizeof(union vfpf_tlvs) / 4, &params)) {
4128         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
4129                "Failed to copy message from VF 0x%02x\n", vfid);
4130 
4131         return -EIO;
4132     }
4133 
4134     return 0;
4135 }
4136 
4137 static void qed_iov_bulletin_set_forced_mac(struct qed_hwfn *p_hwfn,
4138                         u8 *mac, int vfid)
4139 {
4140     struct qed_vf_info *vf_info;
4141     u64 feature;
4142 
4143     vf_info = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
4144     if (!vf_info) {
4145         DP_NOTICE(p_hwfn->cdev,
4146               "Can not set forced MAC, invalid vfid [%d]\n", vfid);
4147         return;
4148     }
4149 
4150     if (vf_info->b_malicious) {
4151         DP_NOTICE(p_hwfn->cdev,
4152               "Can't set forced MAC to malicious VF [%d]\n", vfid);
4153         return;
4154     }
4155 
4156     if (vf_info->p_vf_info.is_trusted_configured) {
4157         feature = BIT(VFPF_BULLETIN_MAC_ADDR);
4158         /* Trust mode will disable Forced MAC */
4159         vf_info->bulletin.p_virt->valid_bitmap &=
4160             ~BIT(MAC_ADDR_FORCED);
4161     } else {
4162         feature = BIT(MAC_ADDR_FORCED);
4163         /* Forced MAC will disable MAC_ADDR */
4164         vf_info->bulletin.p_virt->valid_bitmap &=
4165             ~BIT(VFPF_BULLETIN_MAC_ADDR);
4166     }
4167 
4168     memcpy(vf_info->bulletin.p_virt->mac, mac, ETH_ALEN);
4169 
4170     vf_info->bulletin.p_virt->valid_bitmap |= feature;
4171 
4172     qed_iov_configure_vport_forced(p_hwfn, vf_info, feature);
4173 }
4174 
4175 static int qed_iov_bulletin_set_mac(struct qed_hwfn *p_hwfn, u8 *mac, int vfid)
4176 {
4177     struct qed_vf_info *vf_info;
4178     u64 feature;
4179 
4180     vf_info = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
4181     if (!vf_info) {
4182         DP_NOTICE(p_hwfn->cdev, "Can not set MAC, invalid vfid [%d]\n",
4183               vfid);
4184         return -EINVAL;
4185     }
4186 
4187     if (vf_info->b_malicious) {
4188         DP_NOTICE(p_hwfn->cdev, "Can't set MAC to malicious VF [%d]\n",
4189               vfid);
4190         return -EINVAL;
4191     }
4192 
4193     if (vf_info->bulletin.p_virt->valid_bitmap & BIT(MAC_ADDR_FORCED)) {
4194         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
4195                "Can not set MAC, Forced MAC is configured\n");
4196         return -EINVAL;
4197     }
4198 
4199     feature = BIT(VFPF_BULLETIN_MAC_ADDR);
4200     ether_addr_copy(vf_info->bulletin.p_virt->mac, mac);
4201 
4202     vf_info->bulletin.p_virt->valid_bitmap |= feature;
4203 
4204     if (vf_info->p_vf_info.is_trusted_configured)
4205         qed_iov_configure_vport_forced(p_hwfn, vf_info, feature);
4206 
4207     return 0;
4208 }
4209 
4210 static void qed_iov_bulletin_set_forced_vlan(struct qed_hwfn *p_hwfn,
4211                          u16 pvid, int vfid)
4212 {
4213     struct qed_vf_info *vf_info;
4214     u64 feature;
4215 
4216     vf_info = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
4217     if (!vf_info) {
4218         DP_NOTICE(p_hwfn->cdev,
4219               "Can not set forced MAC, invalid vfid [%d]\n", vfid);
4220         return;
4221     }
4222 
4223     if (vf_info->b_malicious) {
4224         DP_NOTICE(p_hwfn->cdev,
4225               "Can't set forced vlan to malicious VF [%d]\n", vfid);
4226         return;
4227     }
4228 
4229     feature = 1 << VLAN_ADDR_FORCED;
4230     vf_info->bulletin.p_virt->pvid = pvid;
4231     if (pvid)
4232         vf_info->bulletin.p_virt->valid_bitmap |= feature;
4233     else
4234         vf_info->bulletin.p_virt->valid_bitmap &= ~feature;
4235 
4236     qed_iov_configure_vport_forced(p_hwfn, vf_info, feature);
4237 }
4238 
4239 void qed_iov_bulletin_set_udp_ports(struct qed_hwfn *p_hwfn,
4240                     int vfid, u16 vxlan_port, u16 geneve_port)
4241 {
4242     struct qed_vf_info *vf_info;
4243 
4244     vf_info = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
4245     if (!vf_info) {
4246         DP_NOTICE(p_hwfn->cdev,
4247               "Can not set udp ports, invalid vfid [%d]\n", vfid);
4248         return;
4249     }
4250 
4251     if (vf_info->b_malicious) {
4252         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
4253                "Can not set udp ports to malicious VF [%d]\n",
4254                vfid);
4255         return;
4256     }
4257 
4258     vf_info->bulletin.p_virt->vxlan_udp_port = vxlan_port;
4259     vf_info->bulletin.p_virt->geneve_udp_port = geneve_port;
4260 }
4261 
4262 static bool qed_iov_vf_has_vport_instance(struct qed_hwfn *p_hwfn, int vfid)
4263 {
4264     struct qed_vf_info *p_vf_info;
4265 
4266     p_vf_info = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
4267     if (!p_vf_info)
4268         return false;
4269 
4270     return !!p_vf_info->vport_instance;
4271 }
4272 
4273 static bool qed_iov_is_vf_stopped(struct qed_hwfn *p_hwfn, int vfid)
4274 {
4275     struct qed_vf_info *p_vf_info;
4276 
4277     p_vf_info = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
4278     if (!p_vf_info)
4279         return true;
4280 
4281     return p_vf_info->state == VF_STOPPED;
4282 }
4283 
4284 static bool qed_iov_spoofchk_get(struct qed_hwfn *p_hwfn, int vfid)
4285 {
4286     struct qed_vf_info *vf_info;
4287 
4288     vf_info = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
4289     if (!vf_info)
4290         return false;
4291 
4292     return vf_info->spoof_chk;
4293 }
4294 
4295 static int qed_iov_spoofchk_set(struct qed_hwfn *p_hwfn, int vfid, bool val)
4296 {
4297     struct qed_vf_info *vf;
4298     int rc = -EINVAL;
4299 
4300     if (!qed_iov_pf_sanity_check(p_hwfn, vfid)) {
4301         DP_NOTICE(p_hwfn,
4302               "SR-IOV sanity check failed, can't set spoofchk\n");
4303         goto out;
4304     }
4305 
4306     vf = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
4307     if (!vf)
4308         goto out;
4309 
4310     if (!qed_iov_vf_has_vport_instance(p_hwfn, vfid)) {
4311         /* After VF VPORT start PF will configure spoof check */
4312         vf->req_spoofchk_val = val;
4313         rc = 0;
4314         goto out;
4315     }
4316 
4317     rc = __qed_iov_spoofchk_set(p_hwfn, vf, val);
4318 
4319 out:
4320     return rc;
4321 }
4322 
4323 static u8 *qed_iov_bulletin_get_mac(struct qed_hwfn *p_hwfn, u16 rel_vf_id)
4324 {
4325     struct qed_vf_info *p_vf;
4326 
4327     p_vf = qed_iov_get_vf_info(p_hwfn, rel_vf_id, true);
4328     if (!p_vf || !p_vf->bulletin.p_virt)
4329         return NULL;
4330 
4331     if (!(p_vf->bulletin.p_virt->valid_bitmap &
4332           BIT(VFPF_BULLETIN_MAC_ADDR)))
4333         return NULL;
4334 
4335     return p_vf->bulletin.p_virt->mac;
4336 }
4337 
4338 static u8 *qed_iov_bulletin_get_forced_mac(struct qed_hwfn *p_hwfn,
4339                        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 NULL;
4346 
4347     if (!(p_vf->bulletin.p_virt->valid_bitmap & BIT(MAC_ADDR_FORCED)))
4348         return NULL;
4349 
4350     return p_vf->bulletin.p_virt->mac;
4351 }
4352 
4353 static u16
4354 qed_iov_bulletin_get_forced_vlan(struct qed_hwfn *p_hwfn, u16 rel_vf_id)
4355 {
4356     struct qed_vf_info *p_vf;
4357 
4358     p_vf = qed_iov_get_vf_info(p_hwfn, rel_vf_id, true);
4359     if (!p_vf || !p_vf->bulletin.p_virt)
4360         return 0;
4361 
4362     if (!(p_vf->bulletin.p_virt->valid_bitmap & BIT(VLAN_ADDR_FORCED)))
4363         return 0;
4364 
4365     return p_vf->bulletin.p_virt->pvid;
4366 }
4367 
4368 static int qed_iov_configure_tx_rate(struct qed_hwfn *p_hwfn,
4369                      struct qed_ptt *p_ptt, int vfid, int val)
4370 {
4371     struct qed_vf_info *vf;
4372     u8 abs_vp_id = 0;
4373     u16 rl_id;
4374     int rc;
4375 
4376     vf = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
4377     if (!vf)
4378         return -EINVAL;
4379 
4380     rc = qed_fw_vport(p_hwfn, vf->vport_id, &abs_vp_id);
4381     if (rc)
4382         return rc;
4383 
4384     rl_id = abs_vp_id;  /* The "rl_id" is set as the "vport_id" */
4385     return qed_init_global_rl(p_hwfn, p_ptt, rl_id, (u32)val,
4386                   QM_RL_TYPE_NORMAL);
4387 }
4388 
4389 static int
4390 qed_iov_configure_min_tx_rate(struct qed_dev *cdev, int vfid, u32 rate)
4391 {
4392     struct qed_vf_info *vf;
4393     u8 vport_id;
4394     int i;
4395 
4396     for_each_hwfn(cdev, i) {
4397         struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
4398 
4399         if (!qed_iov_pf_sanity_check(p_hwfn, vfid)) {
4400             DP_NOTICE(p_hwfn,
4401                   "SR-IOV sanity check failed, can't set min rate\n");
4402             return -EINVAL;
4403         }
4404     }
4405 
4406     vf = qed_iov_get_vf_info(QED_LEADING_HWFN(cdev), (u16)vfid, true);
4407     vport_id = vf->vport_id;
4408 
4409     return qed_configure_vport_wfq(cdev, vport_id, rate);
4410 }
4411 
4412 static int qed_iov_get_vf_min_rate(struct qed_hwfn *p_hwfn, int vfid)
4413 {
4414     struct qed_wfq_data *vf_vp_wfq;
4415     struct qed_vf_info *vf_info;
4416 
4417     vf_info = qed_iov_get_vf_info(p_hwfn, (u16)vfid, true);
4418     if (!vf_info)
4419         return 0;
4420 
4421     vf_vp_wfq = &p_hwfn->qm_info.wfq_data[vf_info->vport_id];
4422 
4423     if (vf_vp_wfq->configured)
4424         return vf_vp_wfq->min_speed;
4425     else
4426         return 0;
4427 }
4428 
4429 /**
4430  * qed_schedule_iov - schedules IOV task for VF and PF
4431  * @hwfn: hardware function pointer
4432  * @flag: IOV flag for VF/PF
4433  */
4434 void qed_schedule_iov(struct qed_hwfn *hwfn, enum qed_iov_wq_flag flag)
4435 {
4436     /* Memory barrier for setting atomic bit */
4437     smp_mb__before_atomic();
4438     set_bit(flag, &hwfn->iov_task_flags);
4439     /* Memory barrier after setting atomic bit */
4440     smp_mb__after_atomic();
4441     DP_VERBOSE(hwfn, QED_MSG_IOV, "Scheduling iov task [Flag: %d]\n", flag);
4442     queue_delayed_work(hwfn->iov_wq, &hwfn->iov_task, 0);
4443 }
4444 
4445 void qed_vf_start_iov_wq(struct qed_dev *cdev)
4446 {
4447     int i;
4448 
4449     for_each_hwfn(cdev, i)
4450         queue_delayed_work(cdev->hwfns[i].iov_wq,
4451                    &cdev->hwfns[i].iov_task, 0);
4452 }
4453 
4454 int qed_sriov_disable(struct qed_dev *cdev, bool pci_enabled)
4455 {
4456     int i, j;
4457 
4458     for_each_hwfn(cdev, i)
4459         if (cdev->hwfns[i].iov_wq)
4460             flush_workqueue(cdev->hwfns[i].iov_wq);
4461 
4462     /* Mark VFs for disablement */
4463     qed_iov_set_vfs_to_disable(cdev, true);
4464 
4465     if (cdev->p_iov_info && cdev->p_iov_info->num_vfs && pci_enabled)
4466         pci_disable_sriov(cdev->pdev);
4467 
4468     if (cdev->recov_in_prog) {
4469         DP_VERBOSE(cdev,
4470                QED_MSG_IOV,
4471                "Skip SRIOV disable operations in the device since a recovery is in progress\n");
4472         goto out;
4473     }
4474 
4475     for_each_hwfn(cdev, i) {
4476         struct qed_hwfn *hwfn = &cdev->hwfns[i];
4477         struct qed_ptt *ptt = qed_ptt_acquire(hwfn);
4478 
4479         /* Failure to acquire the ptt in 100g creates an odd error
4480          * where the first engine has already relased IOV.
4481          */
4482         if (!ptt) {
4483             DP_ERR(hwfn, "Failed to acquire ptt\n");
4484             return -EBUSY;
4485         }
4486 
4487         /* Clean WFQ db and configure equal weight for all vports */
4488         qed_clean_wfq_db(hwfn, ptt);
4489 
4490         qed_for_each_vf(hwfn, j) {
4491             int k;
4492 
4493             if (!qed_iov_is_valid_vfid(hwfn, j, true, false))
4494                 continue;
4495 
4496             /* Wait until VF is disabled before releasing */
4497             for (k = 0; k < 100; k++) {
4498                 if (!qed_iov_is_vf_stopped(hwfn, j))
4499                     msleep(20);
4500                 else
4501                     break;
4502             }
4503 
4504             if (k < 100)
4505                 qed_iov_release_hw_for_vf(&cdev->hwfns[i],
4506                               ptt, j);
4507             else
4508                 DP_ERR(hwfn,
4509                        "Timeout waiting for VF's FLR to end\n");
4510         }
4511 
4512         qed_ptt_release(hwfn, ptt);
4513     }
4514 out:
4515     qed_iov_set_vfs_to_disable(cdev, false);
4516 
4517     return 0;
4518 }
4519 
4520 static void qed_sriov_enable_qid_config(struct qed_hwfn *hwfn,
4521                     u16 vfid,
4522                     struct qed_iov_vf_init_params *params)
4523 {
4524     u16 base, i;
4525 
4526     /* Since we have an equal resource distribution per-VF, and we assume
4527      * PF has acquired the QED_PF_L2_QUE first queues, we start setting
4528      * sequentially from there.
4529      */
4530     base = FEAT_NUM(hwfn, QED_PF_L2_QUE) + vfid * params->num_queues;
4531 
4532     params->rel_vf_id = vfid;
4533     for (i = 0; i < params->num_queues; i++) {
4534         params->req_rx_queue[i] = base + i;
4535         params->req_tx_queue[i] = base + i;
4536     }
4537 }
4538 
4539 static int qed_sriov_enable(struct qed_dev *cdev, int num)
4540 {
4541     struct qed_iov_vf_init_params params;
4542     struct qed_hwfn *hwfn;
4543     struct qed_ptt *ptt;
4544     int i, j, rc;
4545 
4546     if (num >= RESC_NUM(&cdev->hwfns[0], QED_VPORT)) {
4547         DP_NOTICE(cdev, "Can start at most %d VFs\n",
4548               RESC_NUM(&cdev->hwfns[0], QED_VPORT) - 1);
4549         return -EINVAL;
4550     }
4551 
4552     memset(&params, 0, sizeof(params));
4553 
4554     /* Initialize HW for VF access */
4555     for_each_hwfn(cdev, j) {
4556         hwfn = &cdev->hwfns[j];
4557         ptt = qed_ptt_acquire(hwfn);
4558 
4559         /* Make sure not to use more than 16 queues per VF */
4560         params.num_queues = min_t(int,
4561                       FEAT_NUM(hwfn, QED_VF_L2_QUE) / num,
4562                       16);
4563 
4564         if (!ptt) {
4565             DP_ERR(hwfn, "Failed to acquire ptt\n");
4566             rc = -EBUSY;
4567             goto err;
4568         }
4569 
4570         for (i = 0; i < num; i++) {
4571             if (!qed_iov_is_valid_vfid(hwfn, i, false, true))
4572                 continue;
4573 
4574             qed_sriov_enable_qid_config(hwfn, i, &params);
4575             rc = qed_iov_init_hw_for_vf(hwfn, ptt, &params);
4576             if (rc) {
4577                 DP_ERR(cdev, "Failed to enable VF[%d]\n", i);
4578                 qed_ptt_release(hwfn, ptt);
4579                 goto err;
4580             }
4581         }
4582 
4583         qed_ptt_release(hwfn, ptt);
4584     }
4585 
4586     /* Enable SRIOV PCIe functions */
4587     rc = pci_enable_sriov(cdev->pdev, num);
4588     if (rc) {
4589         DP_ERR(cdev, "Failed to enable sriov [%d]\n", rc);
4590         goto err;
4591     }
4592 
4593     hwfn = QED_LEADING_HWFN(cdev);
4594     ptt = qed_ptt_acquire(hwfn);
4595     if (!ptt) {
4596         DP_ERR(hwfn, "Failed to acquire ptt\n");
4597         rc = -EBUSY;
4598         goto err;
4599     }
4600 
4601     rc = qed_mcp_ov_update_eswitch(hwfn, ptt, QED_OV_ESWITCH_VEB);
4602     if (rc)
4603         DP_INFO(cdev, "Failed to update eswitch mode\n");
4604     qed_ptt_release(hwfn, ptt);
4605 
4606     return num;
4607 
4608 err:
4609     qed_sriov_disable(cdev, false);
4610     return rc;
4611 }
4612 
4613 static int qed_sriov_configure(struct qed_dev *cdev, int num_vfs_param)
4614 {
4615     if (!IS_QED_SRIOV(cdev)) {
4616         DP_VERBOSE(cdev, QED_MSG_IOV, "SR-IOV is not supported\n");
4617         return -EOPNOTSUPP;
4618     }
4619 
4620     if (num_vfs_param)
4621         return qed_sriov_enable(cdev, num_vfs_param);
4622     else
4623         return qed_sriov_disable(cdev, true);
4624 }
4625 
4626 static int qed_sriov_pf_set_mac(struct qed_dev *cdev, u8 *mac, int vfid)
4627 {
4628     int i;
4629 
4630     if (!IS_QED_SRIOV(cdev) || !IS_PF_SRIOV_ALLOC(&cdev->hwfns[0])) {
4631         DP_VERBOSE(cdev, QED_MSG_IOV,
4632                "Cannot set a VF MAC; Sriov is not enabled\n");
4633         return -EINVAL;
4634     }
4635 
4636     if (!qed_iov_is_valid_vfid(&cdev->hwfns[0], vfid, true, true)) {
4637         DP_VERBOSE(cdev, QED_MSG_IOV,
4638                "Cannot set VF[%d] MAC (VF is not active)\n", vfid);
4639         return -EINVAL;
4640     }
4641 
4642     for_each_hwfn(cdev, i) {
4643         struct qed_hwfn *hwfn = &cdev->hwfns[i];
4644         struct qed_public_vf_info *vf_info;
4645 
4646         vf_info = qed_iov_get_public_vf_info(hwfn, vfid, true);
4647         if (!vf_info)
4648             continue;
4649 
4650         /* Set the MAC, and schedule the IOV task */
4651         if (vf_info->is_trusted_configured)
4652             ether_addr_copy(vf_info->mac, mac);
4653         else
4654             ether_addr_copy(vf_info->forced_mac, mac);
4655 
4656         qed_schedule_iov(hwfn, QED_IOV_WQ_SET_UNICAST_FILTER_FLAG);
4657     }
4658 
4659     return 0;
4660 }
4661 
4662 static int qed_sriov_pf_set_vlan(struct qed_dev *cdev, u16 vid, int vfid)
4663 {
4664     int i;
4665 
4666     if (!IS_QED_SRIOV(cdev) || !IS_PF_SRIOV_ALLOC(&cdev->hwfns[0])) {
4667         DP_VERBOSE(cdev, QED_MSG_IOV,
4668                "Cannot set a VF MAC; Sriov is not enabled\n");
4669         return -EINVAL;
4670     }
4671 
4672     if (!qed_iov_is_valid_vfid(&cdev->hwfns[0], vfid, true, true)) {
4673         DP_VERBOSE(cdev, QED_MSG_IOV,
4674                "Cannot set VF[%d] MAC (VF is not active)\n", vfid);
4675         return -EINVAL;
4676     }
4677 
4678     for_each_hwfn(cdev, i) {
4679         struct qed_hwfn *hwfn = &cdev->hwfns[i];
4680         struct qed_public_vf_info *vf_info;
4681 
4682         vf_info = qed_iov_get_public_vf_info(hwfn, vfid, true);
4683         if (!vf_info)
4684             continue;
4685 
4686         /* Set the forced vlan, and schedule the IOV task */
4687         vf_info->forced_vlan = vid;
4688         qed_schedule_iov(hwfn, QED_IOV_WQ_SET_UNICAST_FILTER_FLAG);
4689     }
4690 
4691     return 0;
4692 }
4693 
4694 static int qed_get_vf_config(struct qed_dev *cdev,
4695                  int vf_id, struct ifla_vf_info *ivi)
4696 {
4697     struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
4698     struct qed_public_vf_info *vf_info;
4699     struct qed_mcp_link_state link;
4700     u32 tx_rate;
4701     int ret;
4702 
4703     /* Sanitize request */
4704     if (IS_VF(cdev))
4705         return -EINVAL;
4706 
4707     if (!qed_iov_is_valid_vfid(&cdev->hwfns[0], vf_id, true, false)) {
4708         DP_VERBOSE(cdev, QED_MSG_IOV,
4709                "VF index [%d] isn't active\n", vf_id);
4710         return -EINVAL;
4711     }
4712 
4713     vf_info = qed_iov_get_public_vf_info(hwfn, vf_id, true);
4714 
4715     ret = qed_iov_get_link(hwfn, vf_id, NULL, &link, NULL);
4716     if (ret)
4717         return ret;
4718 
4719     /* Fill information about VF */
4720     ivi->vf = vf_id;
4721 
4722     if (is_valid_ether_addr(vf_info->forced_mac))
4723         ether_addr_copy(ivi->mac, vf_info->forced_mac);
4724     else
4725         ether_addr_copy(ivi->mac, vf_info->mac);
4726 
4727     ivi->vlan = vf_info->forced_vlan;
4728     ivi->spoofchk = qed_iov_spoofchk_get(hwfn, vf_id);
4729     ivi->linkstate = vf_info->link_state;
4730     tx_rate = vf_info->tx_rate;
4731     ivi->max_tx_rate = tx_rate ? tx_rate : link.speed;
4732     ivi->min_tx_rate = qed_iov_get_vf_min_rate(hwfn, vf_id);
4733     ivi->trusted = vf_info->is_trusted_request;
4734 
4735     return 0;
4736 }
4737 
4738 void qed_inform_vf_link_state(struct qed_hwfn *hwfn)
4739 {
4740     struct qed_hwfn *lead_hwfn = QED_LEADING_HWFN(hwfn->cdev);
4741     struct qed_mcp_link_capabilities caps;
4742     struct qed_mcp_link_params params;
4743     struct qed_mcp_link_state link;
4744     int i;
4745 
4746     if (!hwfn->pf_iov_info)
4747         return;
4748 
4749     /* Update bulletin of all future possible VFs with link configuration */
4750     for (i = 0; i < hwfn->cdev->p_iov_info->total_vfs; i++) {
4751         struct qed_public_vf_info *vf_info;
4752 
4753         vf_info = qed_iov_get_public_vf_info(hwfn, i, false);
4754         if (!vf_info)
4755             continue;
4756 
4757         /* Only hwfn0 is actually interested in the link speed.
4758          * But since only it would receive an MFW indication of link,
4759          * need to take configuration from it - otherwise things like
4760          * rate limiting for hwfn1 VF would not work.
4761          */
4762         memcpy(&params, qed_mcp_get_link_params(lead_hwfn),
4763                sizeof(params));
4764         memcpy(&link, qed_mcp_get_link_state(lead_hwfn), sizeof(link));
4765         memcpy(&caps, qed_mcp_get_link_capabilities(lead_hwfn),
4766                sizeof(caps));
4767 
4768         /* Modify link according to the VF's configured link state */
4769         switch (vf_info->link_state) {
4770         case IFLA_VF_LINK_STATE_DISABLE:
4771             link.link_up = false;
4772             break;
4773         case IFLA_VF_LINK_STATE_ENABLE:
4774             link.link_up = true;
4775             /* Set speed according to maximum supported by HW.
4776              * that is 40G for regular devices and 100G for CMT
4777              * mode devices.
4778              */
4779             link.speed = (hwfn->cdev->num_hwfns > 1) ?
4780                      100000 : 40000;
4781             break;
4782         default:
4783             /* In auto mode pass PF link image to VF */
4784             break;
4785         }
4786 
4787         if (link.link_up && vf_info->tx_rate) {
4788             struct qed_ptt *ptt;
4789             int rate;
4790 
4791             rate = min_t(int, vf_info->tx_rate, link.speed);
4792 
4793             ptt = qed_ptt_acquire(hwfn);
4794             if (!ptt) {
4795                 DP_NOTICE(hwfn, "Failed to acquire PTT\n");
4796                 return;
4797             }
4798 
4799             if (!qed_iov_configure_tx_rate(hwfn, ptt, i, rate)) {
4800                 vf_info->tx_rate = rate;
4801                 link.speed = rate;
4802             }
4803 
4804             qed_ptt_release(hwfn, ptt);
4805         }
4806 
4807         qed_iov_set_link(hwfn, i, &params, &link, &caps);
4808     }
4809 
4810     qed_schedule_iov(hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
4811 }
4812 
4813 static int qed_set_vf_link_state(struct qed_dev *cdev,
4814                  int vf_id, int link_state)
4815 {
4816     int i;
4817 
4818     /* Sanitize request */
4819     if (IS_VF(cdev))
4820         return -EINVAL;
4821 
4822     if (!qed_iov_is_valid_vfid(&cdev->hwfns[0], vf_id, true, true)) {
4823         DP_VERBOSE(cdev, QED_MSG_IOV,
4824                "VF index [%d] isn't active\n", vf_id);
4825         return -EINVAL;
4826     }
4827 
4828     /* Handle configuration of link state */
4829     for_each_hwfn(cdev, i) {
4830         struct qed_hwfn *hwfn = &cdev->hwfns[i];
4831         struct qed_public_vf_info *vf;
4832 
4833         vf = qed_iov_get_public_vf_info(hwfn, vf_id, true);
4834         if (!vf)
4835             continue;
4836 
4837         if (vf->link_state == link_state)
4838             continue;
4839 
4840         vf->link_state = link_state;
4841         qed_inform_vf_link_state(&cdev->hwfns[i]);
4842     }
4843 
4844     return 0;
4845 }
4846 
4847 static int qed_spoof_configure(struct qed_dev *cdev, int vfid, bool val)
4848 {
4849     int i, rc = -EINVAL;
4850 
4851     for_each_hwfn(cdev, i) {
4852         struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
4853 
4854         rc = qed_iov_spoofchk_set(p_hwfn, vfid, val);
4855         if (rc)
4856             break;
4857     }
4858 
4859     return rc;
4860 }
4861 
4862 static int qed_configure_max_vf_rate(struct qed_dev *cdev, int vfid, int rate)
4863 {
4864     int i;
4865 
4866     for_each_hwfn(cdev, i) {
4867         struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
4868         struct qed_public_vf_info *vf;
4869 
4870         if (!qed_iov_pf_sanity_check(p_hwfn, vfid)) {
4871             DP_NOTICE(p_hwfn,
4872                   "SR-IOV sanity check failed, can't set tx rate\n");
4873             return -EINVAL;
4874         }
4875 
4876         vf = qed_iov_get_public_vf_info(p_hwfn, vfid, true);
4877 
4878         vf->tx_rate = rate;
4879 
4880         qed_inform_vf_link_state(p_hwfn);
4881     }
4882 
4883     return 0;
4884 }
4885 
4886 static int qed_set_vf_rate(struct qed_dev *cdev,
4887                int vfid, u32 min_rate, u32 max_rate)
4888 {
4889     int rc_min = 0, rc_max = 0;
4890 
4891     if (max_rate)
4892         rc_max = qed_configure_max_vf_rate(cdev, vfid, max_rate);
4893 
4894     if (min_rate)
4895         rc_min = qed_iov_configure_min_tx_rate(cdev, vfid, min_rate);
4896 
4897     if (rc_max | rc_min)
4898         return -EINVAL;
4899 
4900     return 0;
4901 }
4902 
4903 static int qed_set_vf_trust(struct qed_dev *cdev, int vfid, bool trust)
4904 {
4905     int i;
4906 
4907     for_each_hwfn(cdev, i) {
4908         struct qed_hwfn *hwfn = &cdev->hwfns[i];
4909         struct qed_public_vf_info *vf;
4910 
4911         if (!qed_iov_pf_sanity_check(hwfn, vfid)) {
4912             DP_NOTICE(hwfn,
4913                   "SR-IOV sanity check failed, can't set trust\n");
4914             return -EINVAL;
4915         }
4916 
4917         vf = qed_iov_get_public_vf_info(hwfn, vfid, true);
4918 
4919         if (vf->is_trusted_request == trust)
4920             return 0;
4921         vf->is_trusted_request = trust;
4922 
4923         qed_schedule_iov(hwfn, QED_IOV_WQ_TRUST_FLAG);
4924     }
4925 
4926     return 0;
4927 }
4928 
4929 static void qed_handle_vf_msg(struct qed_hwfn *hwfn)
4930 {
4931     u64 events[QED_VF_ARRAY_LENGTH];
4932     struct qed_ptt *ptt;
4933     int i;
4934 
4935     ptt = qed_ptt_acquire(hwfn);
4936     if (!ptt) {
4937         DP_VERBOSE(hwfn, QED_MSG_IOV,
4938                "Can't acquire PTT; re-scheduling\n");
4939         qed_schedule_iov(hwfn, QED_IOV_WQ_MSG_FLAG);
4940         return;
4941     }
4942 
4943     qed_iov_pf_get_pending_events(hwfn, events);
4944 
4945     DP_VERBOSE(hwfn, QED_MSG_IOV,
4946            "Event mask of VF events: 0x%llx 0x%llx 0x%llx\n",
4947            events[0], events[1], events[2]);
4948 
4949     qed_for_each_vf(hwfn, i) {
4950         /* Skip VFs with no pending messages */
4951         if (!(events[i / 64] & (1ULL << (i % 64))))
4952             continue;
4953 
4954         DP_VERBOSE(hwfn, QED_MSG_IOV,
4955                "Handling VF message from VF 0x%02x [Abs 0x%02x]\n",
4956                i, hwfn->cdev->p_iov_info->first_vf_in_pf + i);
4957 
4958         /* Copy VF's message to PF's request buffer for that VF */
4959         if (qed_iov_copy_vf_msg(hwfn, ptt, i))
4960             continue;
4961 
4962         qed_iov_process_mbx_req(hwfn, ptt, i);
4963     }
4964 
4965     qed_ptt_release(hwfn, ptt);
4966 }
4967 
4968 static bool qed_pf_validate_req_vf_mac(struct qed_hwfn *hwfn,
4969                        u8 *mac,
4970                        struct qed_public_vf_info *info)
4971 {
4972     if (info->is_trusted_configured) {
4973         if (is_valid_ether_addr(info->mac) &&
4974             (!mac || !ether_addr_equal(mac, info->mac)))
4975             return true;
4976     } else {
4977         if (is_valid_ether_addr(info->forced_mac) &&
4978             (!mac || !ether_addr_equal(mac, info->forced_mac)))
4979             return true;
4980     }
4981 
4982     return false;
4983 }
4984 
4985 static void qed_set_bulletin_mac(struct qed_hwfn *hwfn,
4986                  struct qed_public_vf_info *info,
4987                  int vfid)
4988 {
4989     if (info->is_trusted_configured)
4990         qed_iov_bulletin_set_mac(hwfn, info->mac, vfid);
4991     else
4992         qed_iov_bulletin_set_forced_mac(hwfn, info->forced_mac, vfid);
4993 }
4994 
4995 static void qed_handle_pf_set_vf_unicast(struct qed_hwfn *hwfn)
4996 {
4997     int i;
4998 
4999     qed_for_each_vf(hwfn, i) {
5000         struct qed_public_vf_info *info;
5001         bool update = false;
5002         u8 *mac;
5003 
5004         info = qed_iov_get_public_vf_info(hwfn, i, true);
5005         if (!info)
5006             continue;
5007 
5008         /* Update data on bulletin board */
5009         if (info->is_trusted_configured)
5010             mac = qed_iov_bulletin_get_mac(hwfn, i);
5011         else
5012             mac = qed_iov_bulletin_get_forced_mac(hwfn, i);
5013 
5014         if (qed_pf_validate_req_vf_mac(hwfn, mac, info)) {
5015             DP_VERBOSE(hwfn,
5016                    QED_MSG_IOV,
5017                    "Handling PF setting of VF MAC to VF 0x%02x [Abs 0x%02x]\n",
5018                    i,
5019                    hwfn->cdev->p_iov_info->first_vf_in_pf + i);
5020 
5021             /* Update bulletin board with MAC */
5022             qed_set_bulletin_mac(hwfn, info, i);
5023             update = true;
5024         }
5025 
5026         if (qed_iov_bulletin_get_forced_vlan(hwfn, i) ^
5027             info->forced_vlan) {
5028             DP_VERBOSE(hwfn,
5029                    QED_MSG_IOV,
5030                    "Handling PF setting of pvid [0x%04x] to VF 0x%02x [Abs 0x%02x]\n",
5031                    info->forced_vlan,
5032                    i,
5033                    hwfn->cdev->p_iov_info->first_vf_in_pf + i);
5034             qed_iov_bulletin_set_forced_vlan(hwfn,
5035                              info->forced_vlan, i);
5036             update = true;
5037         }
5038 
5039         if (update)
5040             qed_schedule_iov(hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
5041     }
5042 }
5043 
5044 static void qed_handle_bulletin_post(struct qed_hwfn *hwfn)
5045 {
5046     struct qed_ptt *ptt;
5047     int i;
5048 
5049     ptt = qed_ptt_acquire(hwfn);
5050     if (!ptt) {
5051         DP_NOTICE(hwfn, "Failed allocating a ptt entry\n");
5052         qed_schedule_iov(hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
5053         return;
5054     }
5055 
5056     qed_for_each_vf(hwfn, i)
5057         qed_iov_post_vf_bulletin(hwfn, i, ptt);
5058 
5059     qed_ptt_release(hwfn, ptt);
5060 }
5061 
5062 static void qed_update_mac_for_vf_trust_change(struct qed_hwfn *hwfn, int vf_id)
5063 {
5064     struct qed_public_vf_info *vf_info;
5065     struct qed_vf_info *vf;
5066     u8 *force_mac;
5067     int i;
5068 
5069     vf_info = qed_iov_get_public_vf_info(hwfn, vf_id, true);
5070     vf = qed_iov_get_vf_info(hwfn, vf_id, true);
5071 
5072     if (!vf_info || !vf)
5073         return;
5074 
5075     /* Force MAC converted to generic MAC in case of VF trust on */
5076     if (vf_info->is_trusted_configured &&
5077         (vf->bulletin.p_virt->valid_bitmap & BIT(MAC_ADDR_FORCED))) {
5078         force_mac = qed_iov_bulletin_get_forced_mac(hwfn, vf_id);
5079 
5080         if (force_mac) {
5081             /* Clear existing shadow copy of MAC to have a clean
5082              * slate.
5083              */
5084             for (i = 0; i < QED_ETH_VF_NUM_MAC_FILTERS; i++) {
5085                 if (ether_addr_equal(vf->shadow_config.macs[i],
5086                              vf_info->mac)) {
5087                     eth_zero_addr(vf->shadow_config.macs[i]);
5088                     DP_VERBOSE(hwfn, QED_MSG_IOV,
5089                            "Shadow MAC %pM removed for VF 0x%02x, VF trust mode is ON\n",
5090                             vf_info->mac, vf_id);
5091                     break;
5092                 }
5093             }
5094 
5095             ether_addr_copy(vf_info->mac, force_mac);
5096             eth_zero_addr(vf_info->forced_mac);
5097             vf->bulletin.p_virt->valid_bitmap &=
5098                     ~BIT(MAC_ADDR_FORCED);
5099             qed_schedule_iov(hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
5100         }
5101     }
5102 
5103     /* Update shadow copy with VF MAC when trust mode is turned off */
5104     if (!vf_info->is_trusted_configured) {
5105         u8 empty_mac[ETH_ALEN];
5106 
5107         eth_zero_addr(empty_mac);
5108         for (i = 0; i < QED_ETH_VF_NUM_MAC_FILTERS; i++) {
5109             if (ether_addr_equal(vf->shadow_config.macs[i],
5110                          empty_mac)) {
5111                 ether_addr_copy(vf->shadow_config.macs[i],
5112                         vf_info->mac);
5113                 DP_VERBOSE(hwfn, QED_MSG_IOV,
5114                        "Shadow is updated with %pM for VF 0x%02x, VF trust mode is OFF\n",
5115                         vf_info->mac, vf_id);
5116                 break;
5117             }
5118         }
5119         /* Clear bulletin when trust mode is turned off,
5120          * to have a clean slate for next (normal) operations.
5121          */
5122         qed_iov_bulletin_set_mac(hwfn, empty_mac, vf_id);
5123         qed_schedule_iov(hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
5124     }
5125 }
5126 
5127 static void qed_iov_handle_trust_change(struct qed_hwfn *hwfn)
5128 {
5129     struct qed_sp_vport_update_params params;
5130     struct qed_filter_accept_flags *flags;
5131     struct qed_public_vf_info *vf_info;
5132     struct qed_vf_info *vf;
5133     u8 mask;
5134     int i;
5135 
5136     mask = QED_ACCEPT_UCAST_UNMATCHED | QED_ACCEPT_MCAST_UNMATCHED;
5137     flags = &params.accept_flags;
5138 
5139     qed_for_each_vf(hwfn, i) {
5140         /* Need to make sure current requested configuration didn't
5141          * flip so that we'll end up configuring something that's not
5142          * needed.
5143          */
5144         vf_info = qed_iov_get_public_vf_info(hwfn, i, true);
5145         if (vf_info->is_trusted_configured ==
5146             vf_info->is_trusted_request)
5147             continue;
5148         vf_info->is_trusted_configured = vf_info->is_trusted_request;
5149 
5150         /* Handle forced MAC mode */
5151         qed_update_mac_for_vf_trust_change(hwfn, i);
5152 
5153         /* Validate that the VF has a configured vport */
5154         vf = qed_iov_get_vf_info(hwfn, i, true);
5155         if (!vf->vport_instance)
5156             continue;
5157 
5158         memset(&params, 0, sizeof(params));
5159         params.opaque_fid = vf->opaque_fid;
5160         params.vport_id = vf->vport_id;
5161 
5162         params.update_ctl_frame_check = 1;
5163         params.mac_chk_en = !vf_info->is_trusted_configured;
5164         params.update_accept_any_vlan_flg = 0;
5165 
5166         if (vf_info->accept_any_vlan && vf_info->forced_vlan) {
5167             params.update_accept_any_vlan_flg = 1;
5168             params.accept_any_vlan = vf_info->accept_any_vlan;
5169         }
5170 
5171         if (vf_info->rx_accept_mode & mask) {
5172             flags->update_rx_mode_config = 1;
5173             flags->rx_accept_filter = vf_info->rx_accept_mode;
5174         }
5175 
5176         if (vf_info->tx_accept_mode & mask) {
5177             flags->update_tx_mode_config = 1;
5178             flags->tx_accept_filter = vf_info->tx_accept_mode;
5179         }
5180 
5181         /* Remove if needed; Otherwise this would set the mask */
5182         if (!vf_info->is_trusted_configured) {
5183             flags->rx_accept_filter &= ~mask;
5184             flags->tx_accept_filter &= ~mask;
5185             params.accept_any_vlan = false;
5186         }
5187 
5188         if (flags->update_rx_mode_config ||
5189             flags->update_tx_mode_config ||
5190             params.update_ctl_frame_check ||
5191             params.update_accept_any_vlan_flg) {
5192             DP_VERBOSE(hwfn, QED_MSG_IOV,
5193                    "vport update config for %s VF[abs 0x%x rel 0x%x]\n",
5194                    vf_info->is_trusted_configured ? "trusted" : "untrusted",
5195                    vf->abs_vf_id, vf->relative_vf_id);
5196             qed_sp_vport_update(hwfn, &params,
5197                         QED_SPQ_MODE_EBLOCK, NULL);
5198         }
5199     }
5200 }
5201 
5202 static void qed_iov_pf_task(struct work_struct *work)
5203 
5204 {
5205     struct qed_hwfn *hwfn = container_of(work, struct qed_hwfn,
5206                          iov_task.work);
5207     int rc;
5208 
5209     if (test_and_clear_bit(QED_IOV_WQ_STOP_WQ_FLAG, &hwfn->iov_task_flags))
5210         return;
5211 
5212     if (test_and_clear_bit(QED_IOV_WQ_FLR_FLAG, &hwfn->iov_task_flags)) {
5213         struct qed_ptt *ptt = qed_ptt_acquire(hwfn);
5214 
5215         if (!ptt) {
5216             qed_schedule_iov(hwfn, QED_IOV_WQ_FLR_FLAG);
5217             return;
5218         }
5219 
5220         rc = qed_iov_vf_flr_cleanup(hwfn, ptt);
5221         if (rc)
5222             qed_schedule_iov(hwfn, QED_IOV_WQ_FLR_FLAG);
5223 
5224         qed_ptt_release(hwfn, ptt);
5225     }
5226 
5227     if (test_and_clear_bit(QED_IOV_WQ_MSG_FLAG, &hwfn->iov_task_flags))
5228         qed_handle_vf_msg(hwfn);
5229 
5230     if (test_and_clear_bit(QED_IOV_WQ_SET_UNICAST_FILTER_FLAG,
5231                    &hwfn->iov_task_flags))
5232         qed_handle_pf_set_vf_unicast(hwfn);
5233 
5234     if (test_and_clear_bit(QED_IOV_WQ_BULLETIN_UPDATE_FLAG,
5235                    &hwfn->iov_task_flags))
5236         qed_handle_bulletin_post(hwfn);
5237 
5238     if (test_and_clear_bit(QED_IOV_WQ_TRUST_FLAG, &hwfn->iov_task_flags))
5239         qed_iov_handle_trust_change(hwfn);
5240 }
5241 
5242 void qed_iov_wq_stop(struct qed_dev *cdev, bool schedule_first)
5243 {
5244     int i;
5245 
5246     for_each_hwfn(cdev, i) {
5247         if (!cdev->hwfns[i].iov_wq)
5248             continue;
5249 
5250         if (schedule_first) {
5251             qed_schedule_iov(&cdev->hwfns[i],
5252                      QED_IOV_WQ_STOP_WQ_FLAG);
5253             cancel_delayed_work_sync(&cdev->hwfns[i].iov_task);
5254         }
5255 
5256         destroy_workqueue(cdev->hwfns[i].iov_wq);
5257     }
5258 }
5259 
5260 int qed_iov_wq_start(struct qed_dev *cdev)
5261 {
5262     char name[NAME_SIZE];
5263     int i;
5264 
5265     for_each_hwfn(cdev, i) {
5266         struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
5267 
5268         /* PFs needs a dedicated workqueue only if they support IOV.
5269          * VFs always require one.
5270          */
5271         if (IS_PF(p_hwfn->cdev) && !IS_PF_SRIOV(p_hwfn))
5272             continue;
5273 
5274         snprintf(name, NAME_SIZE, "iov-%02x:%02x.%02x",
5275              cdev->pdev->bus->number,
5276              PCI_SLOT(cdev->pdev->devfn), p_hwfn->abs_pf_id);
5277 
5278         p_hwfn->iov_wq = create_singlethread_workqueue(name);
5279         if (!p_hwfn->iov_wq) {
5280             DP_NOTICE(p_hwfn, "Cannot create iov workqueue\n");
5281             return -ENOMEM;
5282         }
5283 
5284         if (IS_PF(cdev))
5285             INIT_DELAYED_WORK(&p_hwfn->iov_task, qed_iov_pf_task);
5286         else
5287             INIT_DELAYED_WORK(&p_hwfn->iov_task, qed_iov_vf_task);
5288     }
5289 
5290     return 0;
5291 }
5292 
5293 const struct qed_iov_hv_ops qed_iov_ops_pass = {
5294     .configure = &qed_sriov_configure,
5295     .set_mac = &qed_sriov_pf_set_mac,
5296     .set_vlan = &qed_sriov_pf_set_vlan,
5297     .get_config = &qed_get_vf_config,
5298     .set_link_state = &qed_set_vf_link_state,
5299     .set_spoof = &qed_spoof_configure,
5300     .set_rate = &qed_set_vf_rate,
5301     .set_trust = &qed_set_vf_trust,
5302 };
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