Quelle  qed_sriov.c   Sprache: C

// 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_iro_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_iov_bulletin_set_mac(struct qed_hwfn *p_hwfn, u8 *mac, int vfid);

static u16 qed_vf_from_entity_id(__le16 entity_id)
{
 return le16_to_cpu(entity_id) - MAX_NUM_PFS;
}

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, "%s: VF[%d] is not enabled\n",
         __func__, 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(¶ms, 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,
      ¶ms);
}

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,
         "%s called without allocating mem first\n", __func__);
  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,
     "%s for %d VFs\n", __func__, 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 existence 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 permission 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, "%s : vf is NULL\n", __func__);
  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, "%s : vf is NULL\n", __func__);
  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(¶ms, 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, ¶ms, &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(¶ms, 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,
      ¶ms);

 /* 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,
        GET_GTT_REG_ADDR(GTT_BAR0_MAP_REG_USDM_RAM,
    USTORM_VF_PF_CHANNEL_READY, eng_vf_id), 1);

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

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 overridden. 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;

 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(¶ms, 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, ¶ms, 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, ¶ms);
 if (rc) {
  DP_ERR(p_hwfn,
         "%s returned error %d\n", __func__, 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, "%s returned error %d\n",
         __func__, rc);
  status = PFVF_STATUS_FAILURE;
 }

 /* Forget the configuration on the vport */
 vf->configured_features = 0;
 memset(&vf->shadow_config, 0, sizeof(vf->shadow_config));

out:
 qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_VPORT_TEARDOWN,
        sizeof(struct pfvf_def_resp_tlv), status);
}

static void qed_iov_vf_mbx_start_rxq_resp(struct qed_hwfn *p_hwfn,
       struct qed_ptt *p_ptt,
       struct qed_vf_info *vf,
       u8 status, bool b_legacy)
{
 struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
 struct pfvf_start_queue_resp_tlv *p_tlv;
 struct vfpf_start_rxq_tlv *req;
 u16 length;

 mbx->offset = (u8 *)mbx->reply_virt;

 /* Taking a bigger struct instead of adding a TLV to list was a
 * mistake, but one which we're now stuck with, as some older
 * clients assume the size of the previous response.
 */
 if (!b_legacy)
  length = sizeof(*p_tlv);
 else
  length = sizeof(struct pfvf_def_resp_tlv);

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

 /* Update the TLV with the response */
 if ((status == PFVF_STATUS_SUCCESS) && !b_legacy) {
  req = &mbx->req_virt->start_rxq;
  p_tlv->offset = PXP_VF_BAR0_START_MSDM_ZONE_B +
    offsetof(struct mstorm_vf_zone,
      non_trigger.eth_rx_queue_producers) +
    sizeof(struct eth_rx_prod_data) * req->rx_qid;
 }

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

static u8 qed_iov_vf_mbx_qid(struct qed_hwfn *p_hwfn,
        struct qed_vf_info *p_vf, bool b_is_tx)
{
 struct qed_iov_vf_mbx *p_mbx = &p_vf->vf_mbx;
 struct vfpf_qid_tlv *p_qid_tlv;

 /* Search for the qid if the VF published its going to provide it */
 if (!(p_vf->acquire.vfdev_info.capabilities &
       VFPF_ACQUIRE_CAP_QUEUE_QIDS)) {
  if (b_is_tx)
   return QED_IOV_LEGACY_QID_TX;
  else
   return QED_IOV_LEGACY_QID_RX;
 }

 p_qid_tlv = (struct vfpf_qid_tlv *)
      qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt,
          CHANNEL_TLV_QID);
 if (!p_qid_tlv) {
  DP_VERBOSE(p_hwfn, QED_MSG_IOV,
      "VF[%2x]: Failed to provide qid\n",
      p_vf->relative_vf_id);

  return QED_IOV_QID_INVALID;
 }

 if (p_qid_tlv->qid >= MAX_QUEUES_PER_QZONE) {
  DP_VERBOSE(p_hwfn, QED_MSG_IOV,
      "VF[%02x]: Provided qid out-of-bounds %02x\n",
      p_vf->relative_vf_id, p_qid_tlv->qid);
  return QED_IOV_QID_INVALID;
 }

 return p_qid_tlv->qid;
}

static void qed_iov_vf_mbx_start_rxq(struct qed_hwfn *p_hwfn,
         struct qed_ptt *p_ptt,
         struct qed_vf_info *vf)
{
 struct qed_queue_start_common_params params;
 struct qed_queue_cid_vf_params vf_params;
 struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
 u8 status = PFVF_STATUS_NO_RESOURCE;
 u8 qid_usage_idx, vf_legacy = 0;
 struct vfpf_start_rxq_tlv *req;
 struct qed_vf_queue *p_queue;
 struct qed_queue_cid *p_cid;
 struct qed_sb_info sb_dummy;
 int rc;

 req = &mbx->req_virt->start_rxq;

 if (!qed_iov_validate_rxq(p_hwfn, vf, req->rx_qid,
      QED_IOV_VALIDATE_Q_DISABLE) ||
     !qed_iov_validate_sb(p_hwfn, vf, req->hw_sb))
  goto out;

 qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, false);
 if (qid_usage_idx == QED_IOV_QID_INVALID)
  goto out;

 p_queue = &vf->vf_queues[req->rx_qid];
 if (p_queue->cids[qid_usage_idx].p_cid)
  goto out;

 vf_legacy = qed_vf_calculate_legacy(vf);

 /* Acquire a new queue-cid */
 memset(¶ms, 0, sizeof(params));
 params.queue_id = p_queue->fw_rx_qid;
 params.vport_id = vf->vport_id;
 params.stats_id = vf->abs_vf_id + 0x10;
 /* Since IGU index is passed via sb_info, construct a dummy one */
 memset(&sb_dummy, 0, sizeof(sb_dummy));
 sb_dummy.igu_sb_id = req->hw_sb;
 params.p_sb = &sb_dummy;
 params.sb_idx = req->sb_index;

 memset(&vf_params, 0, sizeof(vf_params));
 vf_params.vfid = vf->relative_vf_id;
 vf_params.vf_qid = (u8)req->rx_qid;
 vf_params.vf_legacy = vf_legacy;
 vf_params.qid_usage_idx = qid_usage_idx;
 p_cid = qed_eth_queue_to_cid(p_hwfn, vf->opaque_fid,
         ¶ms, true, &vf_params);
 if (!p_cid)
  goto out;

 /* Legacy VFs have their Producers in a different location, which they
 * calculate on their own and clean the producer prior to this.
 */
 if (!(vf_legacy & QED_QCID_LEGACY_VF_RX_PROD))
  qed_wr(p_hwfn, p_ptt, MSEM_REG_FAST_MEMORY +
         SEM_FAST_REG_INT_RAM +
         MSTORM_ETH_VF_PRODS_OFFSET(vf->abs_vf_id,
        req->rx_qid), 0);

 rc = qed_eth_rxq_start_ramrod(p_hwfn, p_cid,
          req->bd_max_bytes,
          req->rxq_addr,
          req->cqe_pbl_addr, req->cqe_pbl_size);
 if (rc) {
  status = PFVF_STATUS_FAILURE;
  qed_eth_queue_cid_release(p_hwfn, p_cid);
 } else {
  p_queue->cids[qid_usage_idx].p_cid = p_cid;
  p_queue->cids[qid_usage_idx].b_is_tx = false;
  status = PFVF_STATUS_SUCCESS;
  vf->num_active_rxqs++;
 }

out:
 qed_iov_vf_mbx_start_rxq_resp(p_hwfn, p_ptt, vf, status,
          !!(vf_legacy &
      QED_QCID_LEGACY_VF_RX_PROD));
}

static void
qed_iov_pf_update_tun_response(struct pfvf_update_tunn_param_tlv *p_resp,
          struct qed_tunnel_info *p_tun,
          u16 tunn_feature_mask)
{
 p_resp->tunn_feature_mask = tunn_feature_mask;
 p_resp->vxlan_mode = p_tun->vxlan.b_mode_enabled;
 p_resp->l2geneve_mode = p_tun->l2_geneve.b_mode_enabled;
 p_resp->ipgeneve_mode = p_tun->ip_geneve.b_mode_enabled;
 p_resp->l2gre_mode = p_tun->l2_gre.b_mode_enabled;
 p_resp->ipgre_mode = p_tun->l2_gre.b_mode_enabled;
 p_resp->vxlan_clss = p_tun->vxlan.tun_cls;
 p_resp->l2gre_clss = p_tun->l2_gre.tun_cls;
 p_resp->ipgre_clss = p_tun->ip_gre.tun_cls;
 p_resp->l2geneve_clss = p_tun->l2_geneve.tun_cls;
 p_resp->ipgeneve_clss = p_tun->ip_geneve.tun_cls;
 p_resp->geneve_udp_port = p_tun->geneve_port.port;
 p_resp->vxlan_udp_port = p_tun->vxlan_port.port;
}

static void
__qed_iov_pf_update_tun_param(struct vfpf_update_tunn_param_tlv *p_req,
         struct qed_tunn_update_type *p_tun,
         enum qed_tunn_mode mask, u8 tun_cls)
{
 if (p_req->tun_mode_update_mask & BIT(mask)) {
  p_tun->b_update_mode = true;

  if (p_req->tunn_mode & BIT(mask))
   p_tun->b_mode_enabled = true;
 }

 p_tun->tun_cls = tun_cls;
}

static void
qed_iov_pf_update_tun_param(struct vfpf_update_tunn_param_tlv *p_req,
       struct qed_tunn_update_type *p_tun,
       struct qed_tunn_update_udp_port *p_port,
       enum qed_tunn_mode mask,
       u8 tun_cls, u8 update_port, u16 port)
{
 if (update_port) {
  p_port->b_update_port = true;
  p_port->port = port;
 }

 __qed_iov_pf_update_tun_param(p_req, p_tun, mask, tun_cls);
}

static bool
qed_iov_pf_validate_tunn_param(struct vfpf_update_tunn_param_tlv *p_req)
{
 bool b_update_requested = false;

 if (p_req->tun_mode_update_mask || p_req->update_tun_cls ||
     p_req->update_geneve_port || p_req->update_vxlan_port)
  b_update_requested = true;

 return b_update_requested;
}

static void qed_pf_validate_tunn_mode(struct qed_tunn_update_type *tun, int *rc)
{
 if (tun->b_update_mode && !tun->b_mode_enabled) {
  tun->b_update_mode = false;
  *rc = -EINVAL;
 }
}

static int
qed_pf_validate_modify_tunn_config(struct qed_hwfn *p_hwfn,
       u16 *tun_features, bool *update,
       struct qed_tunnel_info *tun_src)
{
 struct qed_eth_cb_ops *ops = p_hwfn->cdev->protocol_ops.eth;
 struct qed_tunnel_info *tun = &p_hwfn->cdev->tunnel;
 u16 bultn_vxlan_port, bultn_geneve_port;
 void *cookie = p_hwfn->cdev->ops_cookie;
 int i, rc = 0;

 *tun_features = p_hwfn->cdev->tunn_feature_mask;
 bultn_vxlan_port = tun->vxlan_port.port;
 bultn_geneve_port = tun->geneve_port.port;
 qed_pf_validate_tunn_mode(&tun_src->vxlan, &rc);
 qed_pf_validate_tunn_mode(&tun_src->l2_geneve, &rc);
 qed_pf_validate_tunn_mode(&tun_src->ip_geneve, &rc);
 qed_pf_validate_tunn_mode(&tun_src->l2_gre, &rc);
 qed_pf_validate_tunn_mode(&tun_src->ip_gre, &rc);

 if ((tun_src->b_update_rx_cls || tun_src->b_update_tx_cls) &&
     (tun_src->vxlan.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
      tun_src->l2_geneve.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
      tun_src->ip_geneve.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
      tun_src->l2_gre.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
      tun_src->ip_gre.tun_cls != QED_TUNN_CLSS_MAC_VLAN)) {
  tun_src->b_update_rx_cls = false;
  tun_src->b_update_tx_cls = false;
  rc = -EINVAL;
 }

 if (tun_src->vxlan_port.b_update_port) {
  if (tun_src->vxlan_port.port == tun->vxlan_port.port) {
   tun_src->vxlan_port.b_update_port = false;
  } else {
   *update = true;
   bultn_vxlan_port = tun_src->vxlan_port.port;
  }
 }

 if (tun_src->geneve_port.b_update_port) {
  if (tun_src->geneve_port.port == tun->geneve_port.port) {
   tun_src->geneve_port.b_update_port = false;
  } else {
   *update = true;
   bultn_geneve_port = tun_src->geneve_port.port;
  }
 }

 qed_for_each_vf(p_hwfn, i) {
  qed_iov_bulletin_set_udp_ports(p_hwfn, i, bultn_vxlan_port,
            bultn_geneve_port);
 }

 qed_schedule_iov(p_hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
 ops->ports_update(cookie, bultn_vxlan_port, bultn_geneve_port);

 return rc;
}

static void qed_iov_vf_mbx_update_tunn_param(struct qed_hwfn *p_hwfn,
          struct qed_ptt *p_ptt,
          struct qed_vf_info *p_vf)
{
 struct qed_tunnel_info *p_tun = &p_hwfn->cdev->tunnel;
 struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
 struct pfvf_update_tunn_param_tlv *p_resp;
 struct vfpf_update_tunn_param_tlv *p_req;
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