// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
/* QLogic qed NIC Driver
 * Copyright (c) 2015-2017  QLogic Corporation
 * Copyright (c) 2019-2020 Marvell International Ltd.
 */

#include <linux/etherdevice.h>
#include <linux/crc32.h>
#include <linux/vmalloc.h>
#include <linux/crash_dump.h>
#include <linux/qed/qed_iov_if.h>
#include "qed_cxt.h"
#include "qed_hsi.h"
#include "qed_hw.h"
#include "qed_init_ops.h"
#include "qed_int.h"
#include "qed_mcp.h"
#include "qed_reg_addr.h"
#include "qed_sp.h"
#include "qed_sriov.h"
#include "qed_vf.h"
static int qed_sriov_eqe_event(struct qed_hwfn *p_hwfn,
                               u8 opcode,
                               __le16 echo,
                               union event_ring_data *data, u8 fw_return_code);
static int qed_iov_bulletin_set_mac(struct qed_hwfn *p_hwfn, u8 *mac, int vfid);

static u8 qed_vf_calculate_legacy(struct qed_vf_info *p_vf)
{
        u8 legacy = 0;

        if (p_vf->acquire.vfdev_info.eth_fp_hsi_minor ==
            ETH_HSI_VER_NO_PKT_LEN_TUNN)
                legacy |= QED_QCID_LEGACY_VF_RX_PROD;

        if (!(p_vf->acquire.vfdev_info.capabilities &
              VFPF_ACQUIRE_CAP_QUEUE_QIDS))
                legacy |= QED_QCID_LEGACY_VF_CID;

        return legacy;
}

/* IOV ramrods */
static int qed_sp_vf_start(struct qed_hwfn *p_hwfn, struct qed_vf_info *p_vf)
{
        struct vf_start_ramrod_data *p_ramrod = NULL;
        struct qed_spq_entry *p_ent = NULL;
        struct qed_sp_init_data init_data;
        int rc = -EINVAL;
        u8 fp_minor;

        /* Get SPQ entry */
        memset(&init_data, 0, sizeof(init_data));
        init_data.cid = qed_spq_get_cid(p_hwfn);
        init_data.opaque_fid = p_vf->opaque_fid;
        init_data.comp_mode = QED_SPQ_MODE_EBLOCK;

        rc = qed_sp_init_request(p_hwfn, &p_ent,
                                 COMMON_RAMROD_VF_START,
                                 PROTOCOLID_COMMON, &init_data);
        if (rc)
                return rc;

        p_ramrod = &p_ent->ramrod.vf_start;

        p_ramrod->vf_id = GET_FIELD(p_vf->concrete_fid, PXP_CONCRETE_FID_VFID);
        p_ramrod->opaque_fid = cpu_to_le16(p_vf->opaque_fid);

        switch (p_hwfn->hw_info.personality) {
        case QED_PCI_ETH:
                p_ramrod->personality = PERSONALITY_ETH;
                break;
        case QED_PCI_ETH_ROCE:
        case QED_PCI_ETH_IWARP:
                p_ramrod->personality = PERSONALITY_RDMA_AND_ETH;
                break;
        default:
                DP_NOTICE(p_hwfn, "Unknown VF personality %d\n",
                          p_hwfn->hw_info.personality);
                qed_sp_destroy_request(p_hwfn, p_ent);
                return -EINVAL;
        }

        fp_minor = p_vf->acquire.vfdev_info.eth_fp_hsi_minor;
        if (fp_minor > ETH_HSI_VER_MINOR &&
            fp_minor != ETH_HSI_VER_NO_PKT_LEN_TUNN) {
                DP_VERBOSE(p_hwfn,
                           QED_MSG_IOV,
                           "VF [%d] - Requested fp hsi %02x.%02x which is slightly newer than PF's %02x.%02x; Configuring PFs version\n",
                           p_vf->abs_vf_id,
                           ETH_HSI_VER_MAJOR,
                           fp_minor, ETH_HSI_VER_MAJOR, ETH_HSI_VER_MINOR);
                fp_minor = ETH_HSI_VER_MINOR;
        }

        p_ramrod->hsi_fp_ver.major_ver_arr[ETH_VER_KEY] = ETH_HSI_VER_MAJOR;
        p_ramrod->hsi_fp_ver.minor_ver_arr[ETH_VER_KEY] = fp_minor;

        DP_VERBOSE(p_hwfn, QED_MSG_IOV,
                   "VF[%d] - Starting using HSI %02x.%02x\n",
                   p_vf->abs_vf_id, ETH_HSI_VER_MAJOR, fp_minor);

        return qed_spq_post(p_hwfn, p_ent, NULL);
}

static int qed_sp_vf_stop(struct qed_hwfn *p_hwfn,
                          u32 concrete_vfid, u16 opaque_vfid)
{
        struct vf_stop_ramrod_data *p_ramrod = NULL;
        struct qed_spq_entry *p_ent = NULL;
        struct qed_sp_init_data init_data;
        int rc = -EINVAL;

        /* Get SPQ entry */
        memset(&init_data, 0, sizeof(init_data));
        init_data.cid = qed_spq_get_cid(p_hwfn);
        init_data.opaque_fid = opaque_vfid;
        init_data.comp_mode = QED_SPQ_MODE_EBLOCK;

        rc = qed_sp_init_request(p_hwfn, &p_ent,
                                 COMMON_RAMROD_VF_STOP,
                                 PROTOCOLID_COMMON, &init_data);
        if (rc)
                return rc;

        p_ramrod = &p_ent->ramrod.vf_stop;

        p_ramrod->vf_id = GET_FIELD(concrete_vfid, PXP_CONCRETE_FID_VFID);

        return qed_spq_post(p_hwfn, p_ent, NULL);
}

bool qed_iov_is_valid_vfid(struct qed_hwfn *p_hwfn,
                           int rel_vf_id,
                           bool b_enabled_only, bool b_non_malicious)
{
        if (!p_hwfn->pf_iov_info) {
                DP_NOTICE(p_hwfn->cdev, "No iov info\n");
                return false;
        }

        if ((rel_vf_id >= p_hwfn->cdev->p_iov_info->total_vfs) ||
            (rel_vf_id < 0))
                return false;

        if ((!p_hwfn->pf_iov_info->vfs_array[rel_vf_id].b_init) &&
            b_enabled_only)
                return false;

        if ((p_hwfn->pf_iov_info->vfs_array[rel_vf_id].b_malicious) &&
            b_non_malicious)
                return false;

        return true;
}

static struct qed_vf_info *qed_iov_get_vf_info(struct qed_hwfn *p_hwfn,
                                               u16 relative_vf_id,
                                               bool b_enabled_only)
{
        struct qed_vf_info *vf = NULL;

        if (!p_hwfn->pf_iov_info) {
                DP_NOTICE(p_hwfn->cdev, "No iov info\n");
                return NULL;
        }

        if (qed_iov_is_valid_vfid(p_hwfn, relative_vf_id,
                                  b_enabled_only, false))
                vf = &p_hwfn->pf_iov_info->vfs_array[relative_vf_id];
        else
                DP_ERR(p_hwfn, "qed_iov_get_vf_info: VF[%d] is not enabled\n",
                       relative_vf_id);

        return vf;
}

static struct qed_queue_cid *
qed_iov_get_vf_rx_queue_cid(struct qed_vf_queue *p_queue)
{
        int i;

        for (i = 0; i < MAX_QUEUES_PER_QZONE; i++) {
                if (p_queue->cids[i].p_cid && !p_queue->cids[i].b_is_tx)
                        return p_queue->cids[i].p_cid;
        }

        return NULL;
}

enum qed_iov_validate_q_mode {
        QED_IOV_VALIDATE_Q_NA,
        QED_IOV_VALIDATE_Q_ENABLE,
        QED_IOV_VALIDATE_Q_DISABLE,
};

static bool qed_iov_validate_queue_mode(struct qed_hwfn *p_hwfn,
                                        struct qed_vf_info *p_vf,
                                        u16 qid,
                                        enum qed_iov_validate_q_mode mode,
                                        bool b_is_tx)
{
        int i;

        if (mode == QED_IOV_VALIDATE_Q_NA)
                return true;

        for (i = 0; i < MAX_QUEUES_PER_QZONE; i++) {
                struct qed_vf_queue_cid *p_qcid;

                p_qcid = &p_vf->vf_queues[qid].cids[i];

                if (!p_qcid->p_cid)
                        continue;

                if (p_qcid->b_is_tx != b_is_tx)
                        continue;

                return mode == QED_IOV_VALIDATE_Q_ENABLE;
        }

        /* In case we haven't found any valid cid, then its disabled */
        return mode == QED_IOV_VALIDATE_Q_DISABLE;
}

static bool qed_iov_validate_rxq(struct qed_hwfn *p_hwfn,
                                 struct qed_vf_info *p_vf,
                                 u16 rx_qid,
                                 enum qed_iov_validate_q_mode mode)
{
        if (rx_qid >= p_vf->num_rxqs) {
                DP_VERBOSE(p_hwfn,
                           QED_MSG_IOV,
                           "VF[0x%02x] - can't touch Rx queue[%04x]; Only 0x%04x are allocated\n",
                           p_vf->abs_vf_id, rx_qid, p_vf->num_rxqs);
                return false;
        }

        return qed_iov_validate_queue_mode(p_hwfn, p_vf, rx_qid, mode, false);
}

static bool qed_iov_validate_txq(struct qed_hwfn *p_hwfn,
                                 struct qed_vf_info *p_vf,
                                 u16 tx_qid,
                                 enum qed_iov_validate_q_mode mode)
{
        if (tx_qid >= p_vf->num_txqs) {
                DP_VERBOSE(p_hwfn,
                           QED_MSG_IOV,
                           "VF[0x%02x] - can't touch Tx queue[%04x]; Only 0x%04x are allocated\n",
                           p_vf->abs_vf_id, tx_qid, p_vf->num_txqs);
                return false;
        }

        return qed_iov_validate_queue_mode(p_hwfn, p_vf, tx_qid, mode, true);
}

static bool qed_iov_validate_sb(struct qed_hwfn *p_hwfn,
                                struct qed_vf_info *p_vf, u16 sb_idx)
{
        int i;

        for (i = 0; i < p_vf->num_sbs; i++)
                if (p_vf->igu_sbs[i] == sb_idx)
                        return true;

        DP_VERBOSE(p_hwfn,
                   QED_MSG_IOV,
                   "VF[0%02x] - tried using sb_idx %04x which doesn't exist as one of its 0x%02x SBs\n",
                   p_vf->abs_vf_id, sb_idx, p_vf->num_sbs);

        return false;
}

static bool qed_iov_validate_active_rxq(struct qed_hwfn *p_hwfn,
                                        struct qed_vf_info *p_vf)
{
        u8 i;

        for (i = 0; i < p_vf->num_rxqs; i++)
                if (qed_iov_validate_queue_mode(p_hwfn, p_vf, i,
                                                QED_IOV_VALIDATE_Q_ENABLE,
                                                false))
                        return true;

        return false;
}

static bool qed_iov_validate_active_txq(struct qed_hwfn *p_hwfn,
                                        struct qed_vf_info *p_vf)
{
        u8 i;

        for (i = 0; i < p_vf->num_txqs; i++)
                if (qed_iov_validate_queue_mode(p_hwfn, p_vf, i,
                                                QED_IOV_VALIDATE_Q_ENABLE,
                                                true))
                        return true;

        return false;
}

static int qed_iov_post_vf_bulletin(struct qed_hwfn *p_hwfn,
                                    int vfid, struct qed_ptt *p_ptt)
{
        struct qed_bulletin_content *p_bulletin;
        int crc_size = sizeof(p_bulletin->crc);
        struct qed_dmae_params params;
        struct qed_vf_info *p_vf;

        p_vf = qed_iov_get_vf_info(p_hwfn, (u16) vfid, true);
        if (!p_vf)
                return -EINVAL;

        if (!p_vf->vf_bulletin)
                return -EINVAL;

        p_bulletin = p_vf->bulletin.p_virt;

        /* Increment bulletin board version and compute crc */
        p_bulletin->version++;
        p_bulletin->crc = crc32(0, (u8 *)p_bulletin + crc_size,
                                p_vf->bulletin.size - crc_size);

        DP_VERBOSE(p_hwfn, QED_MSG_IOV,
                   "Posting Bulletin 0x%08x to VF[%d] (CRC 0x%08x)\n",
                   p_bulletin->version, p_vf->relative_vf_id, p_bulletin->crc);

        /* propagate bulletin board via dmae to vm memory */
        memset(&params, 0, sizeof(params));
        SET_FIELD(params.flags, QED_DMAE_PARAMS_DST_VF_VALID, 0x1);
        params.dst_vfid = p_vf->abs_vf_id;
        return qed_dmae_host2host(p_hwfn, p_ptt, p_vf->bulletin.phys,
                                  p_vf->vf_bulletin, p_vf->bulletin.size / 4,
                                  &params);
}

static int qed_iov_pci_cfg_info(struct qed_dev *cdev)
{
        struct qed_hw_sriov_info *iov = cdev->p_iov_info;
        int pos = iov->pos;

        DP_VERBOSE(cdev, QED_MSG_IOV, "sriov ext pos %d\n", pos);
        pci_read_config_word(cdev->pdev, pos + PCI_SRIOV_CTRL, &iov->ctrl);

        pci_read_config_word(cdev->pdev,
                             pos + PCI_SRIOV_TOTAL_VF, &iov->total_vfs);
        pci_read_config_word(cdev->pdev,
                             pos + PCI_SRIOV_INITIAL_VF, &iov->initial_vfs);

        pci_read_config_word(cdev->pdev, pos + PCI_SRIOV_NUM_VF, &iov->num_vfs);
        if (iov->num_vfs) {
                DP_VERBOSE(cdev,
                           QED_MSG_IOV,
                           "Number of VFs are already set to non-zero value. Ignoring PCI configuration value\n");
                iov->num_vfs = 0;
        }

        pci_read_config_word(cdev->pdev,
                             pos + PCI_SRIOV_VF_OFFSET, &iov->offset);

        pci_read_config_word(cdev->pdev,
                             pos + PCI_SRIOV_VF_STRIDE, &iov->stride);

        pci_read_config_word(cdev->pdev,
                             pos + PCI_SRIOV_VF_DID, &iov->vf_device_id);

        pci_read_config_dword(cdev->pdev,
                              pos + PCI_SRIOV_SUP_PGSIZE, &iov->pgsz);

        pci_read_config_dword(cdev->pdev, pos + PCI_SRIOV_CAP, &iov->cap);

        pci_read_config_byte(cdev->pdev, pos + PCI_SRIOV_FUNC_LINK, &iov->link);

        DP_VERBOSE(cdev,
                   QED_MSG_IOV,
                   "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",
                   iov->nres,
                   iov->cap,
                   iov->ctrl,
                   iov->total_vfs,
                   iov->initial_vfs,
                   iov->nr_virtfn, iov->offset, iov->stride, iov->pgsz);

        /* Some sanity checks */
        if (iov->num_vfs > NUM_OF_VFS(cdev) ||
            iov->total_vfs > NUM_OF_VFS(cdev)) {
                /* This can happen only due to a bug. In this case we set
                 * num_vfs to zero to avoid memory corruption in the code that
                 * assumes max number of vfs
                 */
                DP_NOTICE(cdev,
                          "IOV: Unexpected number of vfs set: %d setting num_vf to zero\n",
                          iov->num_vfs);

                iov->num_vfs = 0;
                iov->total_vfs = 0;
        }

        return 0;
}

static void qed_iov_setup_vfdb(struct qed_hwfn *p_hwfn)
{
        struct qed_hw_sriov_info *p_iov = p_hwfn->cdev->p_iov_info;
        struct qed_pf_iov *p_iov_info = p_hwfn->pf_iov_info;
        struct qed_bulletin_content *p_bulletin_virt;
        dma_addr_t req_p, rply_p, bulletin_p;
        union pfvf_tlvs *p_reply_virt_addr;
        union vfpf_tlvs *p_req_virt_addr;
        u8 idx = 0;

        memset(p_iov_info->vfs_array, 0, sizeof(p_iov_info->vfs_array));

        p_req_virt_addr = p_iov_info->mbx_msg_virt_addr;
        req_p = p_iov_info->mbx_msg_phys_addr;
        p_reply_virt_addr = p_iov_info->mbx_reply_virt_addr;
        rply_p = p_iov_info->mbx_reply_phys_addr;
        p_bulletin_virt = p_iov_info->p_bulletins;
        bulletin_p = p_iov_info->bulletins_phys;
        if (!p_req_virt_addr || !p_reply_virt_addr || !p_bulletin_virt) {
                DP_ERR(p_hwfn,
                       "qed_iov_setup_vfdb called without allocating mem first\n");
                return;
        }

        for (idx = 0; idx < p_iov->total_vfs; idx++) {
                struct qed_vf_info *vf = &p_iov_info->vfs_array[idx];
                u32 concrete;

                vf->vf_mbx.req_virt = p_req_virt_addr + idx;
                vf->vf_mbx.req_phys = req_p + idx * sizeof(union vfpf_tlvs);
                vf->vf_mbx.reply_virt = p_reply_virt_addr + idx;
                vf->vf_mbx.reply_phys = rply_p + idx * sizeof(union pfvf_tlvs);

                vf->state = VF_STOPPED;
                vf->b_init = false;

                vf->bulletin.phys = idx *
                                    sizeof(struct qed_bulletin_content) +
                                    bulletin_p;
                vf->bulletin.p_virt = p_bulletin_virt + idx;
                vf->bulletin.size = sizeof(struct qed_bulletin_content);

                vf->relative_vf_id = idx;
                vf->abs_vf_id = idx + p_iov->first_vf_in_pf;
                concrete = qed_vfid_to_concrete(p_hwfn, vf->abs_vf_id);
                vf->concrete_fid = concrete;
                vf->opaque_fid = (p_hwfn->hw_info.opaque_fid & 0xff) |
                                 (vf->abs_vf_id << 8);
                vf->vport_id = idx + 1;

                vf->num_mac_filters = QED_ETH_VF_NUM_MAC_FILTERS;
                vf->num_vlan_filters = QED_ETH_VF_NUM_VLAN_FILTERS;
        }
}

static int qed_iov_allocate_vfdb(struct qed_hwfn *p_hwfn)
{
        struct qed_pf_iov *p_iov_info = p_hwfn->pf_iov_info;
        void **p_v_addr;
        u16 num_vfs = 0;

        num_vfs = p_hwfn->cdev->p_iov_info->total_vfs;

        DP_VERBOSE(p_hwfn, QED_MSG_IOV,
                   "qed_iov_allocate_vfdb for %d VFs\n", num_vfs);

        /* Allocate PF Mailbox buffer (per-VF) */
        p_iov_info->mbx_msg_size = sizeof(union vfpf_tlvs) * num_vfs;
        p_v_addr = &p_iov_info->mbx_msg_virt_addr;
        *p_v_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
                                       p_iov_info->mbx_msg_size,
                                       &p_iov_info->mbx_msg_phys_addr,
                                       GFP_KERNEL);
        if (!*p_v_addr)
                return -ENOMEM;

        /* Allocate PF Mailbox Reply buffer (per-VF) */
        p_iov_info->mbx_reply_size = sizeof(union pfvf_tlvs) * num_vfs;
        p_v_addr = &p_iov_info->mbx_reply_virt_addr;
        *p_v_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
                                       p_iov_info->mbx_reply_size,
                                       &p_iov_info->mbx_reply_phys_addr,
                                       GFP_KERNEL);
        if (!*p_v_addr)
                return -ENOMEM;

        p_iov_info->bulletins_size = sizeof(struct qed_bulletin_content) *
                                     num_vfs;
        p_v_addr = &p_iov_info->p_bulletins;
        *p_v_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
                                       p_iov_info->bulletins_size,
                                       &p_iov_info->bulletins_phys,
                                       GFP_KERNEL);
        if (!*p_v_addr)
                return -ENOMEM;

        DP_VERBOSE(p_hwfn,
                   QED_MSG_IOV,
                   "PF's Requests mailbox [%p virt 0x%llx phys],  Response mailbox [%p virt 0x%llx phys] Bulletins [%p virt 0x%llx phys]\n",
                   p_iov_info->mbx_msg_virt_addr,
                   (u64) p_iov_info->mbx_msg_phys_addr,
                   p_iov_info->mbx_reply_virt_addr,
                   (u64) p_iov_info->mbx_reply_phys_addr,
                   p_iov_info->p_bulletins, (u64) p_iov_info->bulletins_phys);

        return 0;
}

static void qed_iov_free_vfdb(struct qed_hwfn *p_hwfn)
{
        struct qed_pf_iov *p_iov_info = p_hwfn->pf_iov_info;

        if (p_hwfn->pf_iov_info->mbx_msg_virt_addr)
                dma_free_coherent(&p_hwfn->cdev->pdev->dev,
                                  p_iov_info->mbx_msg_size,
                                  p_iov_info->mbx_msg_virt_addr,
                                  p_iov_info->mbx_msg_phys_addr);

        if (p_hwfn->pf_iov_info->mbx_reply_virt_addr)
                dma_free_coherent(&p_hwfn->cdev->pdev->dev,
                                  p_iov_info->mbx_reply_size,
                                  p_iov_info->mbx_reply_virt_addr,
                                  p_iov_info->mbx_reply_phys_addr);

        if (p_iov_info->p_bulletins)
                dma_free_coherent(&p_hwfn->cdev->pdev->dev,
                                  p_iov_info->bulletins_size,
                                  p_iov_info->p_bulletins,
                                  p_iov_info->bulletins_phys);
}

int qed_iov_alloc(struct qed_hwfn *p_hwfn)
{
        struct qed_pf_iov *p_sriov;

        if (!IS_PF_SRIOV(p_hwfn)) {
                DP_VERBOSE(p_hwfn, QED_MSG_IOV,
                           "No SR-IOV - no need for IOV db\n");
                return 0;
        }

        p_sriov = kzalloc(sizeof(*p_sriov), GFP_KERNEL);
        if (!p_sriov)
                return -ENOMEM;

        p_hwfn->pf_iov_info = p_sriov;

        qed_spq_register_async_cb(p_hwfn, PROTOCOLID_COMMON,
                                  qed_sriov_eqe_event);

        return qed_iov_allocate_vfdb(p_hwfn);
}

void qed_iov_setup(struct qed_hwfn *p_hwfn)
{
        if (!IS_PF_SRIOV(p_hwfn) || !IS_PF_SRIOV_ALLOC(p_hwfn))
                return;

        qed_iov_setup_vfdb(p_hwfn);
}

void qed_iov_free(struct qed_hwfn *p_hwfn)
{
        qed_spq_unregister_async_cb(p_hwfn, PROTOCOLID_COMMON);

        if (IS_PF_SRIOV_ALLOC(p_hwfn)) {
                qed_iov_free_vfdb(p_hwfn);
                kfree(p_hwfn->pf_iov_info);
        }
}

void qed_iov_free_hw_info(struct qed_dev *cdev)
{
        kfree(cdev->p_iov_info);
        cdev->p_iov_info = NULL;
}

int qed_iov_hw_info(struct qed_hwfn *p_hwfn)
{
        struct qed_dev *cdev = p_hwfn->cdev;
        int pos;
        int rc;

        if (is_kdump_kernel())
                return 0;

        if (IS_VF(p_hwfn->cdev))
                return 0;

        /* Learn the PCI configuration */
        pos = pci_find_ext_capability(p_hwfn->cdev->pdev,
                                      PCI_EXT_CAP_ID_SRIOV);
        if (!pos) {
                DP_VERBOSE(p_hwfn, QED_MSG_IOV, "No PCIe IOV support\n");
                return 0;
        }

        /* Allocate a new struct for IOV information */
        cdev->p_iov_info = kzalloc(sizeof(*cdev->p_iov_info), GFP_KERNEL);
        if (!cdev->p_iov_info)
                return -ENOMEM;

        cdev->p_iov_info->pos = pos;

        rc = qed_iov_pci_cfg_info(cdev);
        if (rc)
                return rc;

        /* We want PF IOV to be synonemous with the existance of p_iov_info;
         * In case the capability is published but there are no VFs, simply
         * de-allocate the struct.
         */
        if (!cdev->p_iov_info->total_vfs) {
                DP_VERBOSE(p_hwfn, QED_MSG_IOV,
                           "IOV capabilities, but no VFs are published\n");
                kfree(cdev->p_iov_info);
                cdev->p_iov_info = NULL;
                return 0;
        }

        /* First VF index based on offset is tricky:
         *  - If ARI is supported [likely], offset - (16 - pf_id) would
         *    provide the number for eng0. 2nd engine Vfs would begin
         *    after the first engine's VFs.
         *  - If !ARI, VFs would start on next device.
         *    so offset - (256 - pf_id) would provide the number.
         * Utilize the fact that (256 - pf_id) is achieved only by later
         * to differentiate between the two.
         */

        if (p_hwfn->cdev->p_iov_info->offset < (256 - p_hwfn->abs_pf_id)) {
                u32 first = p_hwfn->cdev->p_iov_info->offset +
                            p_hwfn->abs_pf_id - 16;

                cdev->p_iov_info->first_vf_in_pf = first;

                if (QED_PATH_ID(p_hwfn))
                        cdev->p_iov_info->first_vf_in_pf -= MAX_NUM_VFS_BB;
        } else {
                u32 first = p_hwfn->cdev->p_iov_info->offset +
                            p_hwfn->abs_pf_id - 256;

                cdev->p_iov_info->first_vf_in_pf = first;
        }

        DP_VERBOSE(p_hwfn, QED_MSG_IOV,
                   "First VF in hwfn 0x%08x\n",
                   cdev->p_iov_info->first_vf_in_pf);

        return 0;
}

static bool _qed_iov_pf_sanity_check(struct qed_hwfn *p_hwfn,
                                     int vfid, bool b_fail_malicious)
{
        /* Check PF supports sriov */
        if (IS_VF(p_hwfn->cdev) || !IS_QED_SRIOV(p_hwfn->cdev) ||
            !IS_PF_SRIOV_ALLOC(p_hwfn))
                return false;

        /* Check VF validity */
        if (!qed_iov_is_valid_vfid(p_hwfn, vfid, true, b_fail_malicious))
                return false;

        return true;
}

static bool qed_iov_pf_sanity_check(struct qed_hwfn *p_hwfn, int vfid)
{
        return _qed_iov_pf_sanity_check(p_hwfn, vfid, true);
}

static void qed_iov_set_vf_to_disable(struct qed_dev *cdev,
                                      u16 rel_vf_id, u8 to_disable)
{
        struct qed_vf_info *vf;
        int i;

        for_each_hwfn(cdev, i) {
                struct qed_hwfn *p_hwfn = &cdev->hwfns[i];

                vf = qed_iov_get_vf_info(p_hwfn, rel_vf_id, false);
                if (!vf)
                        continue;

                vf->to_disable = to_disable;
        }
}

static void qed_iov_set_vfs_to_disable(struct qed_dev *cdev, u8 to_disable)
{
        u16 i;

        if (!IS_QED_SRIOV(cdev))
                return;

        for (i = 0; i < cdev->p_iov_info->total_vfs; i++)
                qed_iov_set_vf_to_disable(cdev, i, to_disable);
}

static void qed_iov_vf_pglue_clear_err(struct qed_hwfn *p_hwfn,
                                       struct qed_ptt *p_ptt, u8 abs_vfid)
{
        qed_wr(p_hwfn, p_ptt,
               PGLUE_B_REG_WAS_ERROR_VF_31_0_CLR + (abs_vfid >> 5) * 4,
               1 << (abs_vfid & 0x1f));
}

static void qed_iov_vf_igu_reset(struct qed_hwfn *p_hwfn,
                                 struct qed_ptt *p_ptt, struct qed_vf_info *vf)
{
        int i;

        /* Set VF masks and configuration - pretend */
        qed_fid_pretend(p_hwfn, p_ptt, (u16) vf->concrete_fid);

        qed_wr(p_hwfn, p_ptt, IGU_REG_STATISTIC_NUM_VF_MSG_SENT, 0);

        /* unpretend */
        qed_fid_pretend(p_hwfn, p_ptt, (u16) p_hwfn->hw_info.concrete_fid);

        /* iterate over all queues, clear sb consumer */
        for (i = 0; i < vf->num_sbs; i++)
                qed_int_igu_init_pure_rt_single(p_hwfn, p_ptt,
                                                vf->igu_sbs[i],
                                                vf->opaque_fid, true);
}

static void qed_iov_vf_igu_set_int(struct qed_hwfn *p_hwfn,
                                   struct qed_ptt *p_ptt,
                                   struct qed_vf_info *vf, bool enable)
{
        u32 igu_vf_conf;

        qed_fid_pretend(p_hwfn, p_ptt, (u16) vf->concrete_fid);

        igu_vf_conf = qed_rd(p_hwfn, p_ptt, IGU_REG_VF_CONFIGURATION);

        if (enable)
                igu_vf_conf |= IGU_VF_CONF_MSI_MSIX_EN;
        else
                igu_vf_conf &= ~IGU_VF_CONF_MSI_MSIX_EN;

        qed_wr(p_hwfn, p_ptt, IGU_REG_VF_CONFIGURATION, igu_vf_conf);

        /* unpretend */
        qed_fid_pretend(p_hwfn, p_ptt, (u16) p_hwfn->hw_info.concrete_fid);
}

static int
qed_iov_enable_vf_access_msix(struct qed_hwfn *p_hwfn,
                              struct qed_ptt *p_ptt, u8 abs_vf_id, u8 num_sbs)
{
        u8 current_max = 0;
        int i;

        /* For AH onward, configuration is per-PF. Find maximum of all
         * the currently enabled child VFs, and set the number to be that.
         */
        if (!QED_IS_BB(p_hwfn->cdev)) {
                qed_for_each_vf(p_hwfn, i) {
                        struct qed_vf_info *p_vf;

                        p_vf = qed_iov_get_vf_info(p_hwfn, (u16)i, true);
                        if (!p_vf)
                                continue;

                        current_max = max_t(u8, current_max, p_vf->num_sbs);
                }
        }

        if (num_sbs > current_max)
                return qed_mcp_config_vf_msix(p_hwfn, p_ptt,
                                              abs_vf_id, num_sbs);

        return 0;
}

static int qed_iov_enable_vf_access(struct qed_hwfn *p_hwfn,
                                    struct qed_ptt *p_ptt,
                                    struct qed_vf_info *vf)
{
        u32 igu_vf_conf = IGU_VF_CONF_FUNC_EN;
        int rc;

        /* It's possible VF was previously considered malicious -
         * clear the indication even if we're only going to disable VF.
         */
        vf->b_malicious = false;

        if (vf->to_disable)
                return 0;

        DP_VERBOSE(p_hwfn,
                   QED_MSG_IOV,
                   "Enable internal access for vf %x [abs %x]\n",
                   vf->abs_vf_id, QED_VF_ABS_ID(p_hwfn, vf));

        qed_iov_vf_pglue_clear_err(p_hwfn, p_ptt, QED_VF_ABS_ID(p_hwfn, vf));

        qed_iov_vf_igu_reset(p_hwfn, p_ptt, vf);

        rc = qed_iov_enable_vf_access_msix(p_hwfn, p_ptt,
                                           vf->abs_vf_id, vf->num_sbs);
        if (rc)
                return rc;

        qed_fid_pretend(p_hwfn, p_ptt, (u16) vf->concrete_fid);

        SET_FIELD(igu_vf_conf, IGU_VF_CONF_PARENT, p_hwfn->rel_pf_id);
        STORE_RT_REG(p_hwfn, IGU_REG_VF_CONFIGURATION_RT_OFFSET, igu_vf_conf);

        qed_init_run(p_hwfn, p_ptt, PHASE_VF, vf->abs_vf_id,
                     p_hwfn->hw_info.hw_mode);

        /* unpretend */
        qed_fid_pretend(p_hwfn, p_ptt, (u16) p_hwfn->hw_info.concrete_fid);

        vf->state = VF_FREE;

        return rc;
}

/**
 * qed_iov_config_perm_table() - Configure the permission zone table.
 *
 * @p_hwfn: HW device data.
 * @p_ptt: PTT window for writing the registers.
 * @vf: VF info data.
 * @enable: The actual permision for this VF.
 *
 * In E4, queue zone permission table size is 320x9. There
 * are 320 VF queues for single engine device (256 for dual
 * engine device), and each entry has the following format:
 * {Valid, VF[7:0]}
 */
static void qed_iov_config_perm_table(struct qed_hwfn *p_hwfn,
                                      struct qed_ptt *p_ptt,
                                      struct qed_vf_info *vf, u8 enable)
{
        u32 reg_addr, val;
        u16 qzone_id = 0;
        int qid;

        for (qid = 0; qid < vf->num_rxqs; qid++) {
                qed_fw_l2_queue(p_hwfn, vf->vf_queues[qid].fw_rx_qid,
                                &qzone_id);

                reg_addr = PSWHST_REG_ZONE_PERMISSION_TABLE + qzone_id * 4;
                val = enable ? (vf->abs_vf_id | BIT(8)) : 0;
                qed_wr(p_hwfn, p_ptt, reg_addr, val);
        }
}

static void qed_iov_enable_vf_traffic(struct qed_hwfn *p_hwfn,
                                      struct qed_ptt *p_ptt,
                                      struct qed_vf_info *vf)
{
        /* Reset vf in IGU - interrupts are still disabled */
        qed_iov_vf_igu_reset(p_hwfn, p_ptt, vf);

        qed_iov_vf_igu_set_int(p_hwfn, p_ptt, vf, 1);

        /* Permission Table */
        qed_iov_config_perm_table(p_hwfn, p_ptt, vf, true);
}

static u8 qed_iov_alloc_vf_igu_sbs(struct qed_hwfn *p_hwfn,
                                   struct qed_ptt *p_ptt,
                                   struct qed_vf_info *vf, u16 num_rx_queues)
{
        struct qed_igu_block *p_block;
        struct cau_sb_entry sb_entry;
        int qid = 0;
        u32 val = 0;

        if (num_rx_queues > p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov)
                num_rx_queues = p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov;
        p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov -= num_rx_queues;

        SET_FIELD(val, IGU_MAPPING_LINE_FUNCTION_NUMBER, vf->abs_vf_id);
        SET_FIELD(val, IGU_MAPPING_LINE_VALID, 1);
        SET_FIELD(val, IGU_MAPPING_LINE_PF_VALID, 0);

        for (qid = 0; qid < num_rx_queues; qid++) {
                p_block = qed_get_igu_free_sb(p_hwfn, false);
                vf->igu_sbs[qid] = p_block->igu_sb_id;
                p_block->status &= ~QED_IGU_STATUS_FREE;
                SET_FIELD(val, IGU_MAPPING_LINE_VECTOR_NUMBER, qid);

                qed_wr(p_hwfn, p_ptt,
                       IGU_REG_MAPPING_MEMORY +
                       sizeof(u32) * p_block->igu_sb_id, val);

                /* Configure igu sb in CAU which were marked valid */
                qed_init_cau_sb_entry(p_hwfn, &sb_entry,
                                      p_hwfn->rel_pf_id, vf->abs_vf_id, 1);

                qed_dmae_host2grc(p_hwfn, p_ptt,
                                  (u64)(uintptr_t)&sb_entry,
                                  CAU_REG_SB_VAR_MEMORY +
                                  p_block->igu_sb_id * sizeof(u64), 2, NULL);
        }

        vf->num_sbs = (u8) num_rx_queues;

        return vf->num_sbs;
}

static void qed_iov_free_vf_igu_sbs(struct qed_hwfn *p_hwfn,
                                    struct qed_ptt *p_ptt,
                                    struct qed_vf_info *vf)
{
        struct qed_igu_info *p_info = p_hwfn->hw_info.p_igu_info;
        int idx, igu_id;
        u32 addr, val;

        /* Invalidate igu CAM lines and mark them as free */
        for (idx = 0; idx < vf->num_sbs; idx++) {
                igu_id = vf->igu_sbs[idx];
                addr = IGU_REG_MAPPING_MEMORY + sizeof(u32) * igu_id;

                val = qed_rd(p_hwfn, p_ptt, addr);
                SET_FIELD(val, IGU_MAPPING_LINE_VALID, 0);
                qed_wr(p_hwfn, p_ptt, addr, val);

                p_info->entry[igu_id].status |= QED_IGU_STATUS_FREE;
                p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov++;
        }

        vf->num_sbs = 0;
}

static void qed_iov_set_link(struct qed_hwfn *p_hwfn,
                             u16 vfid,
                             struct qed_mcp_link_params *params,
                             struct qed_mcp_link_state *link,
                             struct qed_mcp_link_capabilities *p_caps)
{
        struct qed_vf_info *p_vf = qed_iov_get_vf_info(p_hwfn,
                                                       vfid,
                                                       false);
        struct qed_bulletin_content *p_bulletin;

        if (!p_vf)
                return;

        p_bulletin = p_vf->bulletin.p_virt;
        p_bulletin->req_autoneg = params->speed.autoneg;
        p_bulletin->req_adv_speed = params->speed.advertised_speeds;
        p_bulletin->req_forced_speed = params->speed.forced_speed;
        p_bulletin->req_autoneg_pause = params->pause.autoneg;
        p_bulletin->req_forced_rx = params->pause.forced_rx;
        p_bulletin->req_forced_tx = params->pause.forced_tx;
        p_bulletin->req_loopback = params->loopback_mode;

        p_bulletin->link_up = link->link_up;
        p_bulletin->speed = link->speed;
        p_bulletin->full_duplex = link->full_duplex;
        p_bulletin->autoneg = link->an;
        p_bulletin->autoneg_complete = link->an_complete;
        p_bulletin->parallel_detection = link->parallel_detection;
        p_bulletin->pfc_enabled = link->pfc_enabled;
        p_bulletin->partner_adv_speed = link->partner_adv_speed;
        p_bulletin->partner_tx_flow_ctrl_en = link->partner_tx_flow_ctrl_en;
        p_bulletin->partner_rx_flow_ctrl_en = link->partner_rx_flow_ctrl_en;
        p_bulletin->partner_adv_pause = link->partner_adv_pause;
        p_bulletin->sfp_tx_fault = link->sfp_tx_fault;

        p_bulletin->capability_speed = p_caps->speed_capabilities;
}

static int qed_iov_init_hw_for_vf(struct qed_hwfn *p_hwfn,
                                  struct qed_ptt *p_ptt,
                                  struct qed_iov_vf_init_params *p_params)
{
        struct qed_mcp_link_capabilities link_caps;
        struct qed_mcp_link_params link_params;
        struct qed_mcp_link_state link_state;
        u8 num_of_vf_avaiable_chains = 0;
        struct qed_vf_info *vf = NULL;
        u16 qid, num_irqs;
        int rc = 0;
        u32 cids;
        u8 i;

        vf = qed_iov_get_vf_info(p_hwfn, p_params->rel_vf_id, false);
        if (!vf) {
                DP_ERR(p_hwfn, "qed_iov_init_hw_for_vf : vf is NULL\n");
                return -EINVAL;
        }

        if (vf->b_init) {
                DP_NOTICE(p_hwfn, "VF[%d] is already active.\n",
                          p_params->rel_vf_id);
                return -EINVAL;
        }

        /* Perform sanity checking on the requested queue_id */
        for (i = 0; i < p_params->num_queues; i++) {
                u16 min_vf_qzone = FEAT_NUM(p_hwfn, QED_PF_L2_QUE);
                u16 max_vf_qzone = min_vf_qzone +
                    FEAT_NUM(p_hwfn, QED_VF_L2_QUE) - 1;

                qid = p_params->req_rx_queue[i];
                if (qid < min_vf_qzone || qid > max_vf_qzone) {
                        DP_NOTICE(p_hwfn,
                                  "Can't enable Rx qid [%04x] for VF[%d]: qids [0x%04x,...,0x%04x] available\n",
                                  qid,
                                  p_params->rel_vf_id,
                                  min_vf_qzone, max_vf_qzone);
                        return -EINVAL;
                }

                qid = p_params->req_tx_queue[i];
                if (qid > max_vf_qzone) {
                        DP_NOTICE(p_hwfn,
                                  "Can't enable Tx qid [%04x] for VF[%d]: max qid 0x%04x\n",
                                  qid, p_params->rel_vf_id, max_vf_qzone);
                        return -EINVAL;
                }

                /* If client *really* wants, Tx qid can be shared with PF */
                if (qid < min_vf_qzone)
                        DP_VERBOSE(p_hwfn,
                                   QED_MSG_IOV,
                                   "VF[%d] is using PF qid [0x%04x] for Txq[0x%02x]\n",
                                   p_params->rel_vf_id, qid, i);
        }

        /* Limit number of queues according to number of CIDs */
        qed_cxt_get_proto_cid_count(p_hwfn, PROTOCOLID_ETH, &cids);
        DP_VERBOSE(p_hwfn,
                   QED_MSG_IOV,
                   "VF[%d] - requesting to initialize for 0x%04x queues [0x%04x CIDs available]\n",
                   vf->relative_vf_id, p_params->num_queues, (u16)cids);
        num_irqs = min_t(u16, p_params->num_queues, ((u16)cids));

        num_of_vf_avaiable_chains = qed_iov_alloc_vf_igu_sbs(p_hwfn,
                                                             p_ptt,
                                                             vf, num_irqs);
        if (!num_of_vf_avaiable_chains) {
                DP_ERR(p_hwfn, "no available igu sbs\n");
                return -ENOMEM;
        }

        /* Choose queue number and index ranges */
        vf->num_rxqs = num_of_vf_avaiable_chains;
        vf->num_txqs = num_of_vf_avaiable_chains;

        for (i = 0; i < vf->num_rxqs; i++) {
                struct qed_vf_queue *p_queue = &vf->vf_queues[i];

                p_queue->fw_rx_qid = p_params->req_rx_queue[i];
                p_queue->fw_tx_qid = p_params->req_tx_queue[i];

                DP_VERBOSE(p_hwfn, QED_MSG_IOV,
                           "VF[%d] - Q[%d] SB %04x, qid [Rx %04x Tx %04x]\n",
                           vf->relative_vf_id, i, vf->igu_sbs[i],
                           p_queue->fw_rx_qid, p_queue->fw_tx_qid);
        }

        /* Update the link configuration in bulletin */
        memcpy(&link_params, qed_mcp_get_link_params(p_hwfn),
               sizeof(link_params));
        memcpy(&link_state, qed_mcp_get_link_state(p_hwfn), sizeof(link_state));
        memcpy(&link_caps, qed_mcp_get_link_capabilities(p_hwfn),
               sizeof(link_caps));
        qed_iov_set_link(p_hwfn, p_params->rel_vf_id,
                         &link_params, &link_state, &link_caps);

        rc = qed_iov_enable_vf_access(p_hwfn, p_ptt, vf);
        if (!rc) {
                vf->b_init = true;

                if (IS_LEAD_HWFN(p_hwfn))
                        p_hwfn->cdev->p_iov_info->num_vfs++;
        }

        return rc;
}

static int qed_iov_release_hw_for_vf(struct qed_hwfn *p_hwfn,
                                     struct qed_ptt *p_ptt, u16 rel_vf_id)
{
        struct qed_mcp_link_capabilities caps;
        struct qed_mcp_link_params params;
        struct qed_mcp_link_state link;
        struct qed_vf_info *vf = NULL;

        vf = qed_iov_get_vf_info(p_hwfn, rel_vf_id, true);
        if (!vf) {
                DP_ERR(p_hwfn, "qed_iov_release_hw_for_vf : vf is NULL\n");
                return -EINVAL;
        }

        if (vf->bulletin.p_virt)
                memset(vf->bulletin.p_virt, 0, sizeof(*vf->bulletin.p_virt));

        memset(&vf->p_vf_info, 0, sizeof(vf->p_vf_info));

        /* Get the link configuration back in bulletin so
         * that when VFs are re-enabled they get the actual
         * link configuration.
         */
        memcpy(&params, qed_mcp_get_link_params(p_hwfn), sizeof(params));
        memcpy(&link, qed_mcp_get_link_state(p_hwfn), sizeof(link));
        memcpy(&caps, qed_mcp_get_link_capabilities(p_hwfn), sizeof(caps));
        qed_iov_set_link(p_hwfn, rel_vf_id, &params, &link, &caps);

        /* Forget the VF's acquisition message */
        memset(&vf->acquire, 0, sizeof(vf->acquire));

        /* disablng interrupts and resetting permission table was done during
         * vf-close, however, we could get here without going through vf_close
         */
        /* Disable Interrupts for VF */
        qed_iov_vf_igu_set_int(p_hwfn, p_ptt, vf, 0);

        /* Reset Permission table */
        qed_iov_config_perm_table(p_hwfn, p_ptt, vf, 0);

        vf->num_rxqs = 0;
        vf->num_txqs = 0;
        qed_iov_free_vf_igu_sbs(p_hwfn, p_ptt, vf);

        if (vf->b_init) {
                vf->b_init = false;

                if (IS_LEAD_HWFN(p_hwfn))
                        p_hwfn->cdev->p_iov_info->num_vfs--;
        }

        return 0;
}

static bool qed_iov_tlv_supported(u16 tlvtype)
{
        return CHANNEL_TLV_NONE < tlvtype && tlvtype < CHANNEL_TLV_MAX;
}

/* place a given tlv on the tlv buffer, continuing current tlv list */
void *qed_add_tlv(struct qed_hwfn *p_hwfn, u8 **offset, u16 type, u16 length)
{
        struct channel_tlv *tl = (struct channel_tlv *)*offset;

        tl->type = type;
        tl->length = length;

        /* Offset should keep pointing to next TLV (the end of the last) */
        *offset += length;

        /* Return a pointer to the start of the added tlv */
        return *offset - length;
}

/* list the types and lengths of the tlvs on the buffer */
void qed_dp_tlv_list(struct qed_hwfn *p_hwfn, void *tlvs_list)
{
        u16 i = 1, total_length = 0;
        struct channel_tlv *tlv;

        do {
                tlv = (struct channel_tlv *)((u8 *)tlvs_list + total_length);

                /* output tlv */
                DP_VERBOSE(p_hwfn, QED_MSG_IOV,
                           "TLV number %d: type %d, length %d\n",
                           i, tlv->type, tlv->length);

                if (tlv->type == CHANNEL_TLV_LIST_END)
                        return;

                /* Validate entry - protect against malicious VFs */
                if (!tlv->length) {
                        DP_NOTICE(p_hwfn, "TLV of length 0 found\n");
                        return;
                }

                total_length += tlv->length;

                if (total_length >= sizeof(struct tlv_buffer_size)) {
                        DP_NOTICE(p_hwfn, "TLV ==> Buffer overflow\n");
                        return;
                }

                i++;
        } while (1);
}

static void qed_iov_send_response(struct qed_hwfn *p_hwfn,
                                  struct qed_ptt *p_ptt,
                                  struct qed_vf_info *p_vf,
                                  u16 length, u8 status)
{
        struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
        struct qed_dmae_params params;
        u8 eng_vf_id;

        mbx->reply_virt->default_resp.hdr.status = status;

        qed_dp_tlv_list(p_hwfn, mbx->reply_virt);

        eng_vf_id = p_vf->abs_vf_id;

        memset(&params, 0, sizeof(params));
        SET_FIELD(params.flags, QED_DMAE_PARAMS_DST_VF_VALID, 0x1);
        params.dst_vfid = eng_vf_id;

        qed_dmae_host2host(p_hwfn, p_ptt, mbx->reply_phys + sizeof(u64),
                           mbx->req_virt->first_tlv.reply_address +
                           sizeof(u64),
                           (sizeof(union pfvf_tlvs) - sizeof(u64)) / 4,
                           &params);

        /* Once PF copies the rc to the VF, the latter can continue
         * and send an additional message. So we have to make sure the
         * channel would be re-set to ready prior to that.
         */
        REG_WR(p_hwfn,
               GTT_BAR0_MAP_REG_USDM_RAM +
               USTORM_VF_PF_CHANNEL_READY_OFFSET(eng_vf_id), 1);

        qed_dmae_host2host(p_hwfn, p_ptt, mbx->reply_phys,
                           mbx->req_virt->first_tlv.reply_address,
                           sizeof(u64) / 4, &params);
}

static u16 qed_iov_vport_to_tlv(struct qed_hwfn *p_hwfn,
                                enum qed_iov_vport_update_flag flag)
{
        switch (flag) {
        case QED_IOV_VP_UPDATE_ACTIVATE:
                return CHANNEL_TLV_VPORT_UPDATE_ACTIVATE;
        case QED_IOV_VP_UPDATE_VLAN_STRIP:
                return CHANNEL_TLV_VPORT_UPDATE_VLAN_STRIP;
        case QED_IOV_VP_UPDATE_TX_SWITCH:
                return CHANNEL_TLV_VPORT_UPDATE_TX_SWITCH;
        case QED_IOV_VP_UPDATE_MCAST:
                return CHANNEL_TLV_VPORT_UPDATE_MCAST;
        case QED_IOV_VP_UPDATE_ACCEPT_PARAM:
                return CHANNEL_TLV_VPORT_UPDATE_ACCEPT_PARAM;
        case QED_IOV_VP_UPDATE_RSS:
                return CHANNEL_TLV_VPORT_UPDATE_RSS;
        case QED_IOV_VP_UPDATE_ACCEPT_ANY_VLAN:
                return CHANNEL_TLV_VPORT_UPDATE_ACCEPT_ANY_VLAN;
        case QED_IOV_VP_UPDATE_SGE_TPA:
                return CHANNEL_TLV_VPORT_UPDATE_SGE_TPA;
        default:
                return 0;
        }
}

static u16 qed_iov_prep_vp_update_resp_tlvs(struct qed_hwfn *p_hwfn,
                                            struct qed_vf_info *p_vf,
                                            struct qed_iov_vf_mbx *p_mbx,
                                            u8 status,
                                            u16 tlvs_mask, u16 tlvs_accepted)
{
        struct pfvf_def_resp_tlv *resp;
        u16 size, total_len, i;

        memset(p_mbx->reply_virt, 0, sizeof(union pfvf_tlvs));
        p_mbx->offset = (u8 *)p_mbx->reply_virt;
        size = sizeof(struct pfvf_def_resp_tlv);
        total_len = size;

        qed_add_tlv(p_hwfn, &p_mbx->offset, CHANNEL_TLV_VPORT_UPDATE, size);

        /* Prepare response for all extended tlvs if they are found by PF */
        for (i = 0; i < QED_IOV_VP_UPDATE_MAX; i++) {
                if (!(tlvs_mask & BIT(i)))
                        continue;

                resp = qed_add_tlv(p_hwfn, &p_mbx->offset,
                                   qed_iov_vport_to_tlv(p_hwfn, i), size);

                if (tlvs_accepted & BIT(i))
                        resp->hdr.status = status;
                else
                        resp->hdr.status = PFVF_STATUS_NOT_SUPPORTED;

                DP_VERBOSE(p_hwfn,
                           QED_MSG_IOV,
                           "VF[%d] - vport_update response: TLV %d, status %02x\n",
                           p_vf->relative_vf_id,
                           qed_iov_vport_to_tlv(p_hwfn, i), resp->hdr.status);

                total_len += size;
        }

        qed_add_tlv(p_hwfn, &p_mbx->offset, CHANNEL_TLV_LIST_END,
                    sizeof(struct channel_list_end_tlv));

        return total_len;
}

static void qed_iov_prepare_resp(struct qed_hwfn *p_hwfn,
                                 struct qed_ptt *p_ptt,
                                 struct qed_vf_info *vf_info,
                                 u16 type, u16 length, u8 status)
{
        struct qed_iov_vf_mbx *mbx = &vf_info->vf_mbx;

        mbx->offset = (u8 *)mbx->reply_virt;

        qed_add_tlv(p_hwfn, &mbx->offset, type, length);
        qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
                    sizeof(struct channel_list_end_tlv));

        qed_iov_send_response(p_hwfn, p_ptt, vf_info, length, status);
}

static struct
qed_public_vf_info *qed_iov_get_public_vf_info(struct qed_hwfn *p_hwfn,
                                               u16 relative_vf_id,
                                               bool b_enabled_only)
{
        struct qed_vf_info *vf = NULL;

        vf = qed_iov_get_vf_info(p_hwfn, relative_vf_id, b_enabled_only);
        if (!vf)
                return NULL;

        return &vf->p_vf_info;
}

static void qed_iov_clean_vf(struct qed_hwfn *p_hwfn, u8 vfid)
{
        struct qed_public_vf_info *vf_info;

        vf_info = qed_iov_get_public_vf_info(p_hwfn, vfid, false);

        if (!vf_info)
                return;

        /* Clear the VF mac */
        eth_zero_addr(vf_info->mac);

        vf_info->rx_accept_mode = 0;
        vf_info->tx_accept_mode = 0;
}

static void qed_iov_vf_cleanup(struct qed_hwfn *p_hwfn,
                               struct qed_vf_info *p_vf)
{
        u32 i, j;

        p_vf->vf_bulletin = 0;
        p_vf->vport_instance = 0;
        p_vf->configured_features = 0;

        /* If VF previously requested less resources, go back to default */
        p_vf->num_rxqs = p_vf->num_sbs;
        p_vf->num_txqs = p_vf->num_sbs;

        p_vf->num_active_rxqs = 0;

        for (i = 0; i < QED_MAX_VF_CHAINS_PER_PF; i++) {
                struct qed_vf_queue *p_queue = &p_vf->vf_queues[i];

                for (j = 0; j < MAX_QUEUES_PER_QZONE; j++) {
                        if (!p_queue->cids[j].p_cid)
                                continue;

                        qed_eth_queue_cid_release(p_hwfn,
                                                  p_queue->cids[j].p_cid);
                        p_queue->cids[j].p_cid = NULL;
                }
        }

        memset(&p_vf->shadow_config, 0, sizeof(p_vf->shadow_config));
        memset(&p_vf->acquire, 0, sizeof(p_vf->acquire));
        qed_iov_clean_vf(p_hwfn, p_vf->relative_vf_id);
}

/* Returns either 0, or log(size) */
static u32 qed_iov_vf_db_bar_size(struct qed_hwfn *p_hwfn,
                                  struct qed_ptt *p_ptt)
{
        u32 val = qed_rd(p_hwfn, p_ptt, PGLUE_B_REG_VF_BAR1_SIZE);

        if (val)
                return val + 11;
        return 0;
}

static void
qed_iov_vf_mbx_acquire_resc_cids(struct qed_hwfn *p_hwfn,
                                 struct qed_ptt *p_ptt,
                                 struct qed_vf_info *p_vf,
                                 struct vf_pf_resc_request *p_req,
                                 struct pf_vf_resc *p_resp)
{
        u8 num_vf_cons = p_hwfn->pf_params.eth_pf_params.num_vf_cons;
        u8 db_size = qed_db_addr_vf(1, DQ_DEMS_LEGACY) -
                     qed_db_addr_vf(0, DQ_DEMS_LEGACY);
        u32 bar_size;

        p_resp->num_cids = min_t(u8, p_req->num_cids, num_vf_cons);

        /* If VF didn't bother asking for QIDs than don't bother limiting
         * number of CIDs. The VF doesn't care about the number, and this
         * has the likely result of causing an additional acquisition.
         */
        if (!(p_vf->acquire.vfdev_info.capabilities &
              VFPF_ACQUIRE_CAP_QUEUE_QIDS))
                return;

        /* If doorbell bar was mapped by VF, limit the VF CIDs to an amount
         * that would make sure doorbells for all CIDs fall within the bar.
         * If it doesn't, make sure regview window is sufficient.
         */
        if (p_vf->acquire.vfdev_info.capabilities &
            VFPF_ACQUIRE_CAP_PHYSICAL_BAR) {
                bar_size = qed_iov_vf_db_bar_size(p_hwfn, p_ptt);
                if (bar_size)
                        bar_size = 1 << bar_size;

                if (p_hwfn->cdev->num_hwfns > 1)
                        bar_size /= 2;
        } else {
                bar_size = PXP_VF_BAR0_DQ_LENGTH;
        }

        if (bar_size / db_size < 256)
                p_resp->num_cids = min_t(u8, p_resp->num_cids,
                                         (u8)(bar_size / db_size));
}

static u8 qed_iov_vf_mbx_acquire_resc(struct qed_hwfn *p_hwfn,
                                      struct qed_ptt *p_ptt,
                                      struct qed_vf_info *p_vf,
                                      struct vf_pf_resc_request *p_req,
                                      struct pf_vf_resc *p_resp)
{
        u8 i;

        /* Queue related information */
        p_resp->num_rxqs = p_vf->num_rxqs;
        p_resp->num_txqs = p_vf->num_txqs;
        p_resp->num_sbs = p_vf->num_sbs;

        for (i = 0; i < p_resp->num_sbs; i++) {
                p_resp->hw_sbs[i].hw_sb_id = p_vf->igu_sbs[i];
                p_resp->hw_sbs[i].sb_qid = 0;
        }

        /* These fields are filled for backward compatibility.
         * Unused by modern vfs.
         */
        for (i = 0; i < p_resp->num_rxqs; i++) {
                qed_fw_l2_queue(p_hwfn, p_vf->vf_queues[i].fw_rx_qid,
                                (u16 *)&p_resp->hw_qid[i]);
                p_resp->cid[i] = i;
        }

        /* Filter related information */
        p_resp->num_mac_filters = min_t(u8, p_vf->num_mac_filters,
                                        p_req->num_mac_filters);
        p_resp->num_vlan_filters = min_t(u8, p_vf->num_vlan_filters,
                                         p_req->num_vlan_filters);

        qed_iov_vf_mbx_acquire_resc_cids(p_hwfn, p_ptt, p_vf, p_req, p_resp);

        /* This isn't really needed/enforced, but some legacy VFs might depend
         * on the correct filling of this field.
         */
        p_resp->num_mc_filters = QED_MAX_MC_ADDRS;

        /* Validate sufficient resources for VF */
        if (p_resp->num_rxqs < p_req->num_rxqs ||
            p_resp->num_txqs < p_req->num_txqs ||
            p_resp->num_sbs < p_req->num_sbs ||
            p_resp->num_mac_filters < p_req->num_mac_filters ||
            p_resp->num_vlan_filters < p_req->num_vlan_filters ||
            p_resp->num_mc_filters < p_req->num_mc_filters ||
            p_resp->num_cids < p_req->num_cids) {
                DP_VERBOSE(p_hwfn,
                           QED_MSG_IOV,
                           "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",
                           p_vf->abs_vf_id,
                           p_req->num_rxqs,
                           p_resp->num_rxqs,
                           p_req->num_rxqs,
                           p_resp->num_txqs,
                           p_req->num_sbs,
                           p_resp->num_sbs,
                           p_req->num_mac_filters,
                           p_resp->num_mac_filters,
                           p_req->num_vlan_filters,
                           p_resp->num_vlan_filters,
                           p_req->num_mc_filters,
                           p_resp->num_mc_filters,
                           p_req->num_cids, p_resp->num_cids);

                /* Some legacy OSes are incapable of correctly handling this
                 * failure.
                 */
                if ((p_vf->acquire.vfdev_info.eth_fp_hsi_minor ==
                     ETH_HSI_VER_NO_PKT_LEN_TUNN) &&
                    (p_vf->acquire.vfdev_info.os_type ==
                     VFPF_ACQUIRE_OS_WINDOWS))
                        return PFVF_STATUS_SUCCESS;

                return PFVF_STATUS_NO_RESOURCE;
        }

        return PFVF_STATUS_SUCCESS;
}

static void qed_iov_vf_mbx_acquire_stats(struct qed_hwfn *p_hwfn,
                                         struct pfvf_stats_info *p_stats)
{
        p_stats->mstats.address = PXP_VF_BAR0_START_MSDM_ZONE_B +
                                  offsetof(struct mstorm_vf_zone,
                                           non_trigger.eth_queue_stat);
        p_stats->mstats.len = sizeof(struct eth_mstorm_per_queue_stat);
        p_stats->ustats.address = PXP_VF_BAR0_START_USDM_ZONE_B +
                                  offsetof(struct ustorm_vf_zone,
                                           non_trigger.eth_queue_stat);
        p_stats->ustats.len = sizeof(struct eth_ustorm_per_queue_stat);
        p_stats->pstats.address = PXP_VF_BAR0_START_PSDM_ZONE_B +
                                  offsetof(struct pstorm_vf_zone,
                                           non_trigger.eth_queue_stat);
        p_stats->pstats.len = sizeof(struct eth_pstorm_per_queue_stat);
        p_stats->tstats.address = 0;
        p_stats->tstats.len = 0;
}

static void qed_iov_vf_mbx_acquire(struct qed_hwfn *p_hwfn,
                                   struct qed_ptt *p_ptt,
                                   struct qed_vf_info *vf)
{
        struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
        struct pfvf_acquire_resp_tlv *resp = &mbx->reply_virt->acquire_resp;
        struct pf_vf_pfdev_info *pfdev_info = &resp->pfdev_info;
        struct vfpf_acquire_tlv *req = &mbx->req_virt->acquire;
        u8 vfpf_status = PFVF_STATUS_NOT_SUPPORTED;
        struct pf_vf_resc *resc = &resp->resc;
        int rc;

        memset(resp, 0, sizeof(*resp));

        /* Write the PF version so that VF would know which version
         * is supported - might be later overriden. This guarantees that
         * VF could recognize legacy PF based on lack of versions in reply.
         */
        pfdev_info->major_fp_hsi = ETH_HSI_VER_MAJOR;
        pfdev_info->minor_fp_hsi = ETH_HSI_VER_MINOR;

        if (vf->state != VF_FREE && vf->state != VF_STOPPED) {
                DP_VERBOSE(p_hwfn,
                           QED_MSG_IOV,
                           "VF[%d] sent ACQUIRE but is already in state %d - fail request\n",
                           vf->abs_vf_id, vf->state);
                goto out;
        }

        /* Validate FW compatibility */
        if (req->vfdev_info.eth_fp_hsi_major != ETH_HSI_VER_MAJOR) {
                if (req->vfdev_info.capabilities &
                    VFPF_ACQUIRE_CAP_PRE_FP_HSI) {
                        struct vf_pf_vfdev_info *p_vfdev = &req->vfdev_info;

                        DP_VERBOSE(p_hwfn, QED_MSG_IOV,
                                   "VF[%d] is pre-fastpath HSI\n",
                                   vf->abs_vf_id);
                        p_vfdev->eth_fp_hsi_major = ETH_HSI_VER_MAJOR;
                        p_vfdev->eth_fp_hsi_minor = ETH_HSI_VER_NO_PKT_LEN_TUNN;
                } else {
                        DP_INFO(p_hwfn,
                                "VF[%d] needs fastpath HSI %02x.%02x, which is incompatible with loaded FW's fastpath HSI %02x.%02x\n",
                                vf->abs_vf_id,
                                req->vfdev_info.eth_fp_hsi_major,
                                req->vfdev_info.eth_fp_hsi_minor,
                                ETH_HSI_VER_MAJOR, ETH_HSI_VER_MINOR);

                        goto out;
                }
        }

        /* On 100g PFs, prevent old VFs from loading */
        if ((p_hwfn->cdev->num_hwfns > 1) &&
            !(req->vfdev_info.capabilities & VFPF_ACQUIRE_CAP_100G)) {
                DP_INFO(p_hwfn,
                        "VF[%d] is running an old driver that doesn't support 100g\n",
                        vf->abs_vf_id);
                goto out;
        }

        /* Store the acquire message */
        memcpy(&vf->acquire, req, sizeof(vf->acquire));

        vf->opaque_fid = req->vfdev_info.opaque_fid;

        vf->vf_bulletin = req->bulletin_addr;
        vf->bulletin.size = (vf->bulletin.size < req->bulletin_size) ?
                            vf->bulletin.size : req->bulletin_size;

        /* fill in pfdev info */
        pfdev_info->chip_num = p_hwfn->cdev->chip_num;
        pfdev_info->db_size = 0;
        pfdev_info->indices_per_sb = PIS_PER_SB_E4;

        pfdev_info->capabilities = PFVF_ACQUIRE_CAP_DEFAULT_UNTAGGED |
                                   PFVF_ACQUIRE_CAP_POST_FW_OVERRIDE;
        if (p_hwfn->cdev->num_hwfns > 1)
                pfdev_info->capabilities |= PFVF_ACQUIRE_CAP_100G;

        /* Share our ability to use multiple queue-ids only with VFs
         * that request it.
         */
        if (req->vfdev_info.capabilities & VFPF_ACQUIRE_CAP_QUEUE_QIDS)
                pfdev_info->capabilities |= PFVF_ACQUIRE_CAP_QUEUE_QIDS;

        /* Share the sizes of the bars with VF */
        resp->pfdev_info.bar_size = qed_iov_vf_db_bar_size(p_hwfn, p_ptt);

        qed_iov_vf_mbx_acquire_stats(p_hwfn, &pfdev_info->stats_info);

        memcpy(pfdev_info->port_mac, p_hwfn->hw_info.hw_mac_addr, ETH_ALEN);

        pfdev_info->fw_major = FW_MAJOR_VERSION;
        pfdev_info->fw_minor = FW_MINOR_VERSION;
        pfdev_info->fw_rev = FW_REVISION_VERSION;
        pfdev_info->fw_eng = FW_ENGINEERING_VERSION;

        /* Incorrect when legacy, but doesn't matter as legacy isn't reading
         * this field.
         */
        pfdev_info->minor_fp_hsi = min_t(u8, ETH_HSI_VER_MINOR,
                                         req->vfdev_info.eth_fp_hsi_minor);
        pfdev_info->os_type = VFPF_ACQUIRE_OS_LINUX;
        qed_mcp_get_mfw_ver(p_hwfn, p_ptt, &pfdev_info->mfw_ver, NULL);

        pfdev_info->dev_type = p_hwfn->cdev->type;
        pfdev_info->chip_rev = p_hwfn->cdev->chip_rev;

        /* Fill resources available to VF; Make sure there are enough to
         * satisfy the VF's request.
         */
        vfpf_status = qed_iov_vf_mbx_acquire_resc(p_hwfn, p_ptt, vf,
                                                  &req->resc_request, resc);
        if (vfpf_status != PFVF_STATUS_SUCCESS)
                goto out;

        /* Start the VF in FW */
        rc = qed_sp_vf_start(p_hwfn, vf);
        if (rc) {
                DP_NOTICE(p_hwfn, "Failed to start VF[%02x]\n", vf->abs_vf_id);
                vfpf_status = PFVF_STATUS_FAILURE;
                goto out;
        }

        /* Fill agreed size of bulletin board in response */
        resp->bulletin_size = vf->bulletin.size;
        qed_iov_post_vf_bulletin(p_hwfn, vf->relative_vf_id, p_ptt);

        DP_VERBOSE(p_hwfn,
                   QED_MSG_IOV,
                   "VF[%d] ACQUIRE_RESPONSE: pfdev_info- chip_num=0x%x, db_size=%d, idx_per_sb=%d, pf_cap=0x%llx\n"
                   "resources- n_rxq-%d, n_txq-%d, n_sbs-%d, n_macs-%d, n_vlans-%d\n",
                   vf->abs_vf_id,
                   resp->pfdev_info.chip_num,
                   resp->pfdev_info.db_size,
                   resp->pfdev_info.indices_per_sb,
                   resp->pfdev_info.capabilities,
                   resc->num_rxqs,
                   resc->num_txqs,
                   resc->num_sbs,
                   resc->num_mac_filters,
                   resc->num_vlan_filters);
        vf->state = VF_ACQUIRED;

        /* Prepare Response */
out:
        qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_ACQUIRE,
                             sizeof(struct pfvf_acquire_resp_tlv), vfpf_status);
}

static int __qed_iov_spoofchk_set(struct qed_hwfn *p_hwfn,
                                  struct qed_vf_info *p_vf, bool val)
{
        struct qed_sp_vport_update_params params;
        int rc;

        if (val == p_vf->spoof_chk) {
                DP_VERBOSE(p_hwfn, QED_MSG_IOV,
                           "Spoofchk value[%d] is already configured\n", val);
                return 0;
        }

        memset(&params, 0, sizeof(struct qed_sp_vport_update_params));
        params.opaque_fid = p_vf->opaque_fid;
        params.vport_id = p_vf->vport_id;
        params.update_anti_spoofing_en_flg = 1;
        params.anti_spoofing_en = val;

        rc = qed_sp_vport_update(p_hwfn, &params, QED_SPQ_MODE_EBLOCK, NULL);
        if (!rc) {
                p_vf->spoof_chk = val;
                p_vf->req_spoofchk_val = p_vf->spoof_chk;
                DP_VERBOSE(p_hwfn, QED_MSG_IOV,
                           "Spoofchk val[%d] configured\n", val);
        } else {
                DP_VERBOSE(p_hwfn, QED_MSG_IOV,
                           "Spoofchk configuration[val:%d] failed for VF[%d]\n",
                           val, p_vf->relative_vf_id);
        }

        return rc;
}

static int qed_iov_reconfigure_unicast_vlan(struct qed_hwfn *p_hwfn,
                                            struct qed_vf_info *p_vf)
{
        struct qed_filter_ucast filter;
        int rc = 0;
        int i;

        memset(&filter, 0, sizeof(filter));
        filter.is_rx_filter = 1;
        filter.is_tx_filter = 1;
        filter.vport_to_add_to = p_vf->vport_id;
        filter.opcode = QED_FILTER_ADD;

        /* Reconfigure vlans */
        for (i = 0; i < QED_ETH_VF_NUM_VLAN_FILTERS + 1; i++) {
                if (!p_vf->shadow_config.vlans[i].used)
                        continue;

                filter.type = QED_FILTER_VLAN;
                filter.vlan = p_vf->shadow_config.vlans[i].vid;
                DP_VERBOSE(p_hwfn, QED_MSG_IOV,
                           "Reconfiguring VLAN [0x%04x] for VF [%04x]\n",
                           filter.vlan, p_vf->relative_vf_id);
                rc = qed_sp_eth_filter_ucast(p_hwfn, p_vf->opaque_fid,
                                             &filter, QED_SPQ_MODE_CB, NULL);
                if (rc) {
                        DP_NOTICE(p_hwfn,
                                  "Failed to configure VLAN [%04x] to VF [%04x]\n",
                                  filter.vlan, p_vf->relative_vf_id);
                        break;
                }
        }

        return rc;
}

static int
qed_iov_reconfigure_unicast_shadow(struct qed_hwfn *p_hwfn,
                                   struct qed_vf_info *p_vf, u64 events)
{
        int rc = 0;

        if ((events & BIT(VLAN_ADDR_FORCED)) &&
            !(p_vf->configured_features & (1 << VLAN_ADDR_FORCED)))
                rc = qed_iov_reconfigure_unicast_vlan(p_hwfn, p_vf);

        return rc;
}

static int qed_iov_configure_vport_forced(struct qed_hwfn *p_hwfn,
                                          struct qed_vf_info *p_vf, u64 events)
{
        int rc = 0;
        struct qed_filter_ucast filter;

        if (!p_vf->vport_instance)
                return -EINVAL;

        if ((events & BIT(MAC_ADDR_FORCED)) ||
            p_vf->p_vf_info.is_trusted_configured) {
                /* Since there's no way [currently] of removing the MAC,
                 * we can always assume this means we need to force it.
                 */
                memset(&filter, 0, sizeof(filter));
                filter.type = QED_FILTER_MAC;
                filter.opcode = QED_FILTER_REPLACE;
                filter.is_rx_filter = 1;
                filter.is_tx_filter = 1;
                filter.vport_to_add_to = p_vf->vport_id;
                ether_addr_copy(filter.mac, p_vf->bulletin.p_virt->mac);

                rc = qed_sp_eth_filter_ucast(p_hwfn, p_vf->opaque_fid,
                                             &filter, QED_SPQ_MODE_CB, NULL);
                if (rc) {
                        DP_NOTICE(p_hwfn,
                                  "PF failed to configure MAC for VF\n");
                        return rc;
                }
                if (p_vf->p_vf_info.is_trusted_configured)
                        p_vf->configured_features |=
                                BIT(VFPF_BULLETIN_MAC_ADDR);
                else
                        p_vf->configured_features |=
                                BIT(MAC_ADDR_FORCED);
        }

        if (events & BIT(VLAN_ADDR_FORCED)) {
                struct qed_sp_vport_update_params vport_update;
                u8 removal;
                int i;

                memset(&filter, 0, sizeof(filter));
                filter.type = QED_FILTER_VLAN;
                filter.is_rx_filter = 1;
                filter.is_tx_filter = 1;
                filter.vport_to_add_to = p_vf->vport_id;
                filter.vlan = p_vf->bulletin.p_virt->pvid;
                filter.opcode = filter.vlan ? QED_FILTER_REPLACE :
                                              QED_FILTER_FLUSH;

                /* Send the ramrod */
                rc = qed_sp_eth_filter_ucast(p_hwfn, p_vf->opaque_fid,
                                             &filter, QED_SPQ_MODE_CB, NULL);
                if (rc) {
                        DP_NOTICE(p_hwfn,
                                  "PF failed to configure VLAN for VF\n");
                        return rc;
                }

                /* Update the default-vlan & silent vlan stripping */
                memset(&vport_update, 0, sizeof(vport_update));
                vport_update.opaque_fid = p_vf->opaque_fid;
                vport_update.vport_id = p_vf->vport_id;
                vport_update.update_default_vlan_enable_flg = 1;
                vport_update.default_vlan_enable_flg = filter.vlan ? 1 : 0;
                vport_update.update_default_vlan_flg = 1;
                vport_update.default_vlan = filter.vlan;

                vport_update.update_inner_vlan_removal_flg = 1;
                removal = filter.vlan ? 1
                                      : p_vf->shadow_config.inner_vlan_removal;
                vport_update.inner_vlan_removal_flg = removal;
                vport_update.silent_vlan_removal_flg = filter.vlan ? 1 : 0;
                rc = qed_sp_vport_update(p_hwfn,
                                         &vport_update,
                                         QED_SPQ_MODE_EBLOCK, NULL);
                if (rc) {
                        DP_NOTICE(p_hwfn,
                                  "PF failed to configure VF vport for vlan\n");
                        return rc;
                }

                /* Update all the Rx queues */
                for (i = 0; i < QED_MAX_VF_CHAINS_PER_PF; i++) {
                        struct qed_vf_queue *p_queue = &p_vf->vf_queues[i];
                        struct qed_queue_cid *p_cid = NULL;

                        /* There can be at most 1 Rx queue on qzone. Find it */
                        p_cid = qed_iov_get_vf_rx_queue_cid(p_queue);
                        if (!p_cid)
                                continue;

                        rc = qed_sp_eth_rx_queues_update(p_hwfn,
                                                         (void **)&p_cid,
                                                         1, 0, 1,
                                                         QED_SPQ_MODE_EBLOCK,
                                                         NULL);
                        if (rc) {
                                DP_NOTICE(p_hwfn,
                                          "Failed to send Rx update fo queue[0x%04x]\n",
                                          p_cid->rel.queue_id);
                                return rc;
                        }
                }

                if (filter.vlan)
                        p_vf->configured_features |= 1 << VLAN_ADDR_FORCED;
                else
                        p_vf->configured_features &= ~BIT(VLAN_ADDR_FORCED);
        }

        /* If forced features are terminated, we need to configure the shadow
         * configuration back again.
         */
        if (events)
                qed_iov_reconfigure_unicast_shadow(p_hwfn, p_vf, events);

        return rc;
}

static void qed_iov_vf_mbx_start_vport(struct qed_hwfn *p_hwfn,
                                       struct qed_ptt *p_ptt,
                                       struct qed_vf_info *vf)
{
        struct qed_sp_vport_start_params params = { 0 };
        struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
        struct vfpf_vport_start_tlv *start;
        u8 status = PFVF_STATUS_SUCCESS;
        struct qed_vf_info *vf_info;
        u64 *p_bitmap;
        int sb_id;
        int rc;

        vf_info = qed_iov_get_vf_info(p_hwfn, (u16) vf->relative_vf_id, true);
        if (!vf_info) {
                DP_NOTICE(p_hwfn->cdev,
                          "Failed to get VF info, invalid vfid [%d]\n",
                          vf->relative_vf_id);
                return;
        }

        vf->state = VF_ENABLED;
        start = &mbx->req_virt->start_vport;

        qed_iov_enable_vf_traffic(p_hwfn, p_ptt, vf);

        /* Initialize Status block in CAU */
        for (sb_id = 0; sb_id < vf->num_sbs; sb_id++) {
                if (!start->sb_addr[sb_id]) {
                        DP_VERBOSE(p_hwfn, QED_MSG_IOV,
                                   "VF[%d] did not fill the address of SB %d\n",
                                   vf->relative_vf_id, sb_id);
                        break;
                }

                qed_int_cau_conf_sb(p_hwfn, p_ptt,
                                    start->sb_addr[sb_id],
                                    vf->igu_sbs[sb_id], vf->abs_vf_id, 1);
        }

        vf->mtu = start->mtu;
        vf->shadow_config.inner_vlan_removal = start->inner_vlan_removal;

        /* Take into consideration configuration forced by hypervisor;
         * If none is configured, use the supplied VF values [for old
         * vfs that would still be fine, since they passed '0' as padding].
         */
        p_bitmap = &vf_info->bulletin.p_virt->valid_bitmap;
        if (!(*p_bitmap & BIT(VFPF_BULLETIN_UNTAGGED_DEFAULT_FORCED))) {
                u8 vf_req = start->only_untagged;

                vf_info->bulletin.p_virt->default_only_untagged = vf_req;
                *p_bitmap |= 1 << VFPF_BULLETIN_UNTAGGED_DEFAULT;
        }

        params.tpa_mode = start->tpa_mode;
        params.remove_inner_vlan = start->inner_vlan_removal;
        params.tx_switching = true;

        params.only_untagged = vf_info->bulletin.p_virt->default_only_untagged;
        params.drop_ttl0 = false;
        params.concrete_fid = vf->concrete_fid;
        params.opaque_fid = vf->opaque_fid;
        params.vport_id = vf->vport_id;
        params.max_buffers_per_cqe = start->max_buffers_per_cqe;
        params.mtu = vf->mtu;

        /* Non trusted VFs should enable control frame filtering */
        params.check_mac = !vf->p_vf_info.is_trusted_configured;

        rc = qed_sp_eth_vport_start(p_hwfn, &params);
        if (rc) {
                DP_ERR(p_hwfn,
                       "qed_iov_vf_mbx_start_vport returned error %d\n", rc);
                status = PFVF_STATUS_FAILURE;
        } else {
                vf->vport_instance++;

                /* Force configuration if needed on the newly opened vport */
                qed_iov_configure_vport_forced(p_hwfn, vf, *p_bitmap);

                __qed_iov_spoofchk_set(p_hwfn, vf, vf->req_spoofchk_val);
        }
        qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_VPORT_START,
                             sizeof(struct pfvf_def_resp_tlv), status);
}

static void qed_iov_vf_mbx_stop_vport(struct qed_hwfn *p_hwfn,
                                      struct qed_ptt *p_ptt,
                                      struct qed_vf_info *vf)
{
        u8 status = PFVF_STATUS_SUCCESS;
        int rc;

        vf->vport_instance--;
        vf->spoof_chk = false;

        if ((qed_iov_validate_active_rxq(p_hwfn, vf)) ||
            (qed_iov_validate_active_txq(p_hwfn, vf))) {
                vf->b_malicious = true;
                DP_NOTICE(p_hwfn,
                          "VF [%02x] - considered malicious; Unable to stop RX/TX queues\n",
                          vf->abs_vf_id);
                status = PFVF_STATUS_MALICIOUS;
                goto out;
        }

        rc = qed_sp_vport_stop(p_hwfn, vf->opaque_fid, vf->vport_id);
        if (rc) {
                DP_ERR(p_hwfn, "qed_iov_vf_mbx_stop_vport returned error %d\n",
                       rc);
                status = PFVF_STATUS_FAILURE;
        }