net/bnxt: modify resource reservation strategy
[dpdk.git] / drivers / net / bnxt / bnxt_hwrm.c
index 02b0a21..a65ac6c 100644 (file)
@@ -750,9 +750,13 @@ static int bnxt_hwrm_ptp_qcfg(struct bnxt *bp)
 
        HWRM_CHECK_RESULT();
 
-       if (!BNXT_CHIP_P5(bp) &&
-           !(resp->flags & HWRM_PORT_MAC_PTP_QCFG_OUTPUT_FLAGS_DIRECT_ACCESS))
-               return 0;
+       if (BNXT_CHIP_P5(bp)) {
+               if (!(resp->flags & HWRM_PORT_MAC_PTP_QCFG_OUTPUT_FLAGS_HWRM_ACCESS))
+                       return 0;
+       } else {
+               if (!(resp->flags & HWRM_PORT_MAC_PTP_QCFG_OUTPUT_FLAGS_DIRECT_ACCESS))
+                       return 0;
+       }
 
        if (resp->flags & HWRM_PORT_MAC_PTP_QCFG_OUTPUT_FLAGS_ONE_STEP_TX_TS)
                bp->flags |= BNXT_FLAG_FW_CAP_ONE_STEP_TX_TS;
@@ -788,10 +792,16 @@ static int bnxt_hwrm_ptp_qcfg(struct bnxt *bp)
        return 0;
 }
 
-void bnxt_hwrm_free_vf_info(struct bnxt *bp)
+void bnxt_free_vf_info(struct bnxt *bp)
 {
        int i;
 
+       if (bp->pf == NULL)
+               return;
+
+       if (bp->pf->vf_info == NULL)
+               return;
+
        for (i = 0; i < bp->pf->max_vfs; i++) {
                rte_free(bp->pf->vf_info[i].vlan_table);
                bp->pf->vf_info[i].vlan_table = NULL;
@@ -802,6 +812,50 @@ void bnxt_hwrm_free_vf_info(struct bnxt *bp)
        bp->pf->vf_info = NULL;
 }
 
+static int bnxt_alloc_vf_info(struct bnxt *bp, uint16_t max_vfs)
+{
+       struct bnxt_child_vf_info *vf_info = bp->pf->vf_info;
+       int i;
+
+       if (vf_info)
+               bnxt_free_vf_info(bp);
+
+       vf_info = rte_zmalloc("bnxt_vf_info", sizeof(*vf_info) * max_vfs, 0);
+       if (vf_info == NULL) {
+               PMD_DRV_LOG(ERR, "Failed to alloc vf info\n");
+               return -ENOMEM;
+       }
+
+       bp->pf->max_vfs = max_vfs;
+       for (i = 0; i < max_vfs; i++) {
+               vf_info[i].fid = bp->pf->first_vf_id + i;
+               vf_info[i].vlan_table = rte_zmalloc("VF VLAN table",
+                                                   getpagesize(), getpagesize());
+               if (vf_info[i].vlan_table == NULL) {
+                       PMD_DRV_LOG(ERR, "Failed to alloc VLAN table for VF %d\n", i);
+                       goto err;
+               }
+               rte_mem_lock_page(vf_info[i].vlan_table);
+
+               vf_info[i].vlan_as_table = rte_zmalloc("VF VLAN AS table",
+                                                      getpagesize(), getpagesize());
+               if (vf_info[i].vlan_as_table == NULL) {
+                       PMD_DRV_LOG(ERR, "Failed to alloc VLAN AS table for VF %d\n", i);
+                       goto err;
+               }
+               rte_mem_lock_page(vf_info[i].vlan_as_table);
+
+               STAILQ_INIT(&vf_info[i].filter);
+       }
+
+       bp->pf->vf_info = vf_info;
+
+       return 0;
+err:
+       bnxt_free_vf_info(bp);
+       return -ENOMEM;
+}
+
 static int __bnxt_hwrm_func_qcaps(struct bnxt *bp)
 {
        int rc = 0;
@@ -809,7 +863,6 @@ static int __bnxt_hwrm_func_qcaps(struct bnxt *bp)
        struct hwrm_func_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
        uint16_t new_max_vfs;
        uint32_t flags;
-       int i;
 
        HWRM_PREP(&req, HWRM_FUNC_QCAPS, BNXT_USE_CHIMP_MB);
 
@@ -827,43 +880,9 @@ static int __bnxt_hwrm_func_qcaps(struct bnxt *bp)
                bp->pf->total_vfs = rte_le_to_cpu_16(resp->max_vfs);
                new_max_vfs = bp->pdev->max_vfs;
                if (new_max_vfs != bp->pf->max_vfs) {
-                       if (bp->pf->vf_info)
-                               bnxt_hwrm_free_vf_info(bp);
-                       bp->pf->vf_info = rte_zmalloc("bnxt_vf_info",
-                           sizeof(bp->pf->vf_info[0]) * new_max_vfs, 0);
-                       if (bp->pf->vf_info == NULL) {
-                               PMD_DRV_LOG(ERR, "Alloc vf info fail\n");
-                               HWRM_UNLOCK();
-                               return -ENOMEM;
-                       }
-                       bp->pf->max_vfs = new_max_vfs;
-                       for (i = 0; i < new_max_vfs; i++) {
-                               bp->pf->vf_info[i].fid =
-                                       bp->pf->first_vf_id + i;
-                               bp->pf->vf_info[i].vlan_table =
-                                       rte_zmalloc("VF VLAN table",
-                                                   getpagesize(),
-                                                   getpagesize());
-                               if (bp->pf->vf_info[i].vlan_table == NULL)
-                                       PMD_DRV_LOG(ERR,
-                                       "Fail to alloc VLAN table for VF %d\n",
-                                       i);
-                               else
-                                       rte_mem_lock_page(
-                                               bp->pf->vf_info[i].vlan_table);
-                               bp->pf->vf_info[i].vlan_as_table =
-                                       rte_zmalloc("VF VLAN AS table",
-                                                   getpagesize(),
-                                                   getpagesize());
-                               if (bp->pf->vf_info[i].vlan_as_table == NULL)
-                                       PMD_DRV_LOG(ERR,
-                                       "Alloc VLAN AS table for VF %d fail\n",
-                                       i);
-                               else
-                                       rte_mem_lock_page(
-                                             bp->pf->vf_info[i].vlan_as_table);
-                               STAILQ_INIT(&bp->pf->vf_info[i].filter);
-                       }
+                       rc = bnxt_alloc_vf_info(bp, new_max_vfs);
+                       if (rc)
+                               goto unlock;
                }
        }
 
@@ -922,6 +941,7 @@ static int __bnxt_hwrm_func_qcaps(struct bnxt *bp)
        if (flags & HWRM_FUNC_QCAPS_OUTPUT_FLAGS_LINK_ADMIN_STATUS_SUPPORTED)
                bp->fw_cap |= BNXT_FW_CAP_LINK_ADMIN;
 
+unlock:
        HWRM_UNLOCK();
 
        return rc;
@@ -932,6 +952,9 @@ int bnxt_hwrm_func_qcaps(struct bnxt *bp)
        int rc;
 
        rc = __bnxt_hwrm_func_qcaps(bp);
+       if (rc == -ENOMEM)
+               return rc;
+
        if (!rc && bp->hwrm_spec_code >= HWRM_SPEC_CODE_1_8_3) {
                rc = bnxt_alloc_ctx_mem(bp);
                if (rc)
@@ -1217,6 +1240,11 @@ int bnxt_hwrm_ver_get(struct bnxt *bp, uint32_t timeout)
        else
                HWRM_CHECK_RESULT();
 
+       if (resp->flags & HWRM_VER_GET_OUTPUT_FLAGS_DEV_NOT_RDY) {
+               rc = -EAGAIN;
+               goto error;
+       }
+
        PMD_DRV_LOG(INFO, "%d.%d.%d:%d.%d.%d.%d\n",
                resp->hwrm_intf_maj_8b, resp->hwrm_intf_min_8b,
                resp->hwrm_intf_upd_8b, resp->hwrm_fw_maj_8b,
@@ -1250,6 +1278,7 @@ int bnxt_hwrm_ver_get(struct bnxt *bp, uint32_t timeout)
        if (bp->max_req_len > resp->max_req_win_len) {
                PMD_DRV_LOG(ERR, "Unsupported request length\n");
                rc = -EINVAL;
+               goto error;
        }
 
        bp->chip_num = rte_le_to_cpu_16(resp->chip_num);
@@ -1262,28 +1291,8 @@ int bnxt_hwrm_ver_get(struct bnxt *bp, uint32_t timeout)
        max_resp_len = rte_le_to_cpu_16(resp->max_resp_len);
        dev_caps_cfg = rte_le_to_cpu_32(resp->dev_caps_cfg);
 
-       if (bp->max_resp_len != max_resp_len) {
-               sprintf(type, "bnxt_hwrm_" PCI_PRI_FMT,
-                       bp->pdev->addr.domain, bp->pdev->addr.bus,
-                       bp->pdev->addr.devid, bp->pdev->addr.function);
-
-               rte_free(bp->hwrm_cmd_resp_addr);
-
-               bp->hwrm_cmd_resp_addr = rte_malloc(type, max_resp_len, 0);
-               if (bp->hwrm_cmd_resp_addr == NULL) {
-                       rc = -ENOMEM;
-                       goto error;
-               }
-               bp->hwrm_cmd_resp_dma_addr =
-                       rte_malloc_virt2iova(bp->hwrm_cmd_resp_addr);
-               if (bp->hwrm_cmd_resp_dma_addr == RTE_BAD_IOVA) {
-                       PMD_DRV_LOG(ERR,
-                       "Unable to map response buffer to physical memory.\n");
-                       rc = -ENOMEM;
-                       goto error;
-               }
-               bp->max_resp_len = max_resp_len;
-       }
+       RTE_VERIFY(max_resp_len <= bp->max_resp_len);
+       bp->max_resp_len = max_resp_len;
 
        if ((dev_caps_cfg &
                HWRM_VER_GET_OUTPUT_DEV_CAPS_CFG_SHORT_CMD_SUPPORTED) &&
@@ -1362,6 +1371,9 @@ int bnxt_hwrm_func_driver_unregister(struct bnxt *bp, uint32_t flags)
        HWRM_CHECK_RESULT();
        HWRM_UNLOCK();
 
+       PMD_DRV_LOG(DEBUG, "Port %u: Unregistered with fw\n",
+                   bp->eth_dev->data->port_id);
+
        return rc;
 }
 
@@ -1446,8 +1458,6 @@ static int bnxt_hwrm_port_phy_cfg(struct bnxt *bp, struct bnxt_link_info *conf)
        HWRM_CHECK_RESULT();
        HWRM_UNLOCK();
 
-       PMD_DRV_LOG(DEBUG, "Port %u: Unregistered with fw\n",
-                   bp->eth_dev->data->port_id);
        return rc;
 }
 
@@ -1520,7 +1530,7 @@ int bnxt_hwrm_port_phy_qcaps(struct bnxt *bp)
 
        rc = bnxt_hwrm_send_message(bp, &req, sizeof(req), BNXT_USE_CHIMP_MB);
 
-       HWRM_CHECK_RESULT();
+       HWRM_CHECK_RESULT_SILENT();
 
        bp->port_cnt = resp->port_cnt;
        if (resp->supported_speeds_auto_mode)
@@ -1893,8 +1903,7 @@ int bnxt_hwrm_stat_clear(struct bnxt *bp, struct bnxt_cp_ring_info *cpr)
        return rc;
 }
 
-int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
-                               unsigned int idx __rte_unused)
+static int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp, struct bnxt_cp_ring_info *cpr)
 {
        int rc;
        struct hwrm_stat_ctx_alloc_input req = {.req_type = 0 };
@@ -1917,8 +1926,7 @@ int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
        return rc;
 }
 
-int bnxt_hwrm_stat_ctx_free(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
-                               unsigned int idx __rte_unused)
+static int bnxt_hwrm_stat_ctx_free(struct bnxt *bp, struct bnxt_cp_ring_info *cpr)
 {
        int rc;
        struct hwrm_stat_ctx_free_input req = {.req_type = 0 };
@@ -2588,7 +2596,7 @@ bnxt_free_all_hwrm_stat_ctxs(struct bnxt *bp)
                                bp->grp_info[i].fw_stats_ctx = -1;
                }
                if (cpr->hw_stats_ctx_id != HWRM_NA_SIGNATURE) {
-                       rc = bnxt_hwrm_stat_ctx_free(bp, cpr, i);
+                       rc = bnxt_hwrm_stat_ctx_free(bp, cpr);
                        cpr->hw_stats_ctx_id = HWRM_NA_SIGNATURE;
                        if (rc)
                                return rc;
@@ -2615,7 +2623,7 @@ int bnxt_alloc_all_hwrm_stat_ctxs(struct bnxt *bp)
                        cpr = rxq->cp_ring;
                }
 
-               rc = bnxt_hwrm_stat_ctx_alloc(bp, cpr, i);
+               rc = bnxt_hwrm_stat_ctx_alloc(bp, cpr);
 
                if (rc)
                        return rc;
@@ -2707,6 +2715,25 @@ void bnxt_free_hwrm_rx_ring(struct bnxt *bp, int queue_index)
                bp->grp_info[queue_index].cp_fw_ring_id = INVALID_HW_RING_ID;
 }
 
+int bnxt_hwrm_rx_ring_reset(struct bnxt *bp, int queue_index)
+{
+       int rc;
+       struct hwrm_ring_reset_input req = {.req_type = 0 };
+       struct hwrm_ring_reset_output *resp = bp->hwrm_cmd_resp_addr;
+
+       HWRM_PREP(&req, HWRM_RING_RESET, BNXT_USE_CHIMP_MB);
+
+       req.ring_type = HWRM_RING_RESET_INPUT_RING_TYPE_RX_RING_GRP;
+       req.ring_id = rte_cpu_to_le_16(bp->grp_info[queue_index].fw_grp_id);
+       rc = bnxt_hwrm_send_message(bp, &req, sizeof(req), BNXT_USE_CHIMP_MB);
+
+       HWRM_CHECK_RESULT();
+
+       HWRM_UNLOCK();
+
+       return rc;
+}
+
 static int
 bnxt_free_all_hwrm_rings(struct bnxt *bp)
 {
@@ -2782,7 +2809,7 @@ int bnxt_alloc_hwrm_resources(struct bnxt *bp)
 
        sprintf(type, "bnxt_hwrm_" PCI_PRI_FMT, pdev->addr.domain,
                pdev->addr.bus, pdev->addr.devid, pdev->addr.function);
-       bp->max_resp_len = HWRM_MAX_RESP_LEN;
+       bp->max_resp_len = BNXT_PAGE_SIZE;
        bp->hwrm_cmd_resp_addr = rte_malloc(type, bp->max_resp_len, 0);
        if (bp->hwrm_cmd_resp_addr == NULL)
                return -ENOMEM;
@@ -3363,7 +3390,7 @@ int bnxt_hwrm_parent_pf_qcfg(struct bnxt *bp)
 
        rc = bnxt_hwrm_send_message(bp, &req, sizeof(req), BNXT_USE_CHIMP_MB);
 
-       HWRM_CHECK_RESULT();
+       HWRM_CHECK_RESULT_SILENT();
 
        memcpy(bp->parent->mac_addr, resp->mac_address, RTE_ETHER_ADDR_LEN);
        bp->parent->vnic = rte_le_to_cpu_16(resp->dflt_vnic_id);
@@ -3372,7 +3399,7 @@ int bnxt_hwrm_parent_pf_qcfg(struct bnxt *bp)
 
        /* FIXME: Temporary workaround - remove when firmware issue is fixed. */
        if (bp->parent->vnic == 0) {
-               PMD_DRV_LOG(ERR, "Error: parent VNIC unavailable.\n");
+               PMD_DRV_LOG(DEBUG, "parent VNIC unavailable.\n");
                /* Use hard-coded values appropriate for current Wh+ fw. */
                if (bp->parent->fid == 2)
                        bp->parent->vnic = 0x100;
@@ -4282,8 +4309,20 @@ int bnxt_hwrm_exec_fwd_resp(struct bnxt *bp, uint16_t target_id,
        return rc;
 }
 
-int bnxt_hwrm_ctx_qstats(struct bnxt *bp, uint32_t cid, int idx,
-                        struct rte_eth_stats *stats, uint8_t rx)
+static void bnxt_update_prev_stat(uint64_t *cntr, uint64_t *prev_cntr)
+{
+       /* One of the HW stat values that make up this counter was zero as
+        * returned by HW in this iteration, so use the previous
+        * iteration's counter value
+        */
+       if (*prev_cntr && *cntr == 0)
+               *cntr = *prev_cntr;
+       else
+               *prev_cntr = *cntr;
+}
+
+int bnxt_hwrm_ring_stats(struct bnxt *bp, uint32_t cid, int idx,
+                        struct bnxt_ring_stats *ring_stats, bool rx)
 {
        int rc = 0;
        struct hwrm_stat_ctx_query_input req = {.req_type = 0};
@@ -4298,21 +4337,85 @@ int bnxt_hwrm_ctx_qstats(struct bnxt *bp, uint32_t cid, int idx,
        HWRM_CHECK_RESULT();
 
        if (rx) {
-               stats->q_ipackets[idx] = rte_le_to_cpu_64(resp->rx_ucast_pkts);
-               stats->q_ipackets[idx] += rte_le_to_cpu_64(resp->rx_mcast_pkts);
-               stats->q_ipackets[idx] += rte_le_to_cpu_64(resp->rx_bcast_pkts);
-               stats->q_ibytes[idx] = rte_le_to_cpu_64(resp->rx_ucast_bytes);
-               stats->q_ibytes[idx] += rte_le_to_cpu_64(resp->rx_mcast_bytes);
-               stats->q_ibytes[idx] += rte_le_to_cpu_64(resp->rx_bcast_bytes);
-               stats->q_errors[idx] = rte_le_to_cpu_64(resp->rx_discard_pkts);
-               stats->q_errors[idx] += rte_le_to_cpu_64(resp->rx_error_pkts);
+               struct bnxt_ring_stats *prev_stats = &bp->prev_rx_ring_stats[idx];
+
+               ring_stats->rx_ucast_pkts = rte_le_to_cpu_64(resp->rx_ucast_pkts);
+               bnxt_update_prev_stat(&ring_stats->rx_ucast_pkts,
+                                     &prev_stats->rx_ucast_pkts);
+
+               ring_stats->rx_mcast_pkts = rte_le_to_cpu_64(resp->rx_mcast_pkts);
+               bnxt_update_prev_stat(&ring_stats->rx_mcast_pkts,
+                                     &prev_stats->rx_mcast_pkts);
+
+               ring_stats->rx_bcast_pkts = rte_le_to_cpu_64(resp->rx_bcast_pkts);
+               bnxt_update_prev_stat(&ring_stats->rx_bcast_pkts,
+                                     &prev_stats->rx_bcast_pkts);
+
+               ring_stats->rx_ucast_bytes = rte_le_to_cpu_64(resp->rx_ucast_bytes);
+               bnxt_update_prev_stat(&ring_stats->rx_ucast_bytes,
+                                     &prev_stats->rx_ucast_bytes);
+
+               ring_stats->rx_mcast_bytes = rte_le_to_cpu_64(resp->rx_mcast_bytes);
+               bnxt_update_prev_stat(&ring_stats->rx_mcast_bytes,
+                                     &prev_stats->rx_mcast_bytes);
+
+               ring_stats->rx_bcast_bytes = rte_le_to_cpu_64(resp->rx_bcast_bytes);
+               bnxt_update_prev_stat(&ring_stats->rx_bcast_bytes,
+                                     &prev_stats->rx_bcast_bytes);
+
+               ring_stats->rx_discard_pkts = rte_le_to_cpu_64(resp->rx_discard_pkts);
+               bnxt_update_prev_stat(&ring_stats->rx_discard_pkts,
+                                     &prev_stats->rx_discard_pkts);
+
+               ring_stats->rx_error_pkts = rte_le_to_cpu_64(resp->rx_error_pkts);
+               bnxt_update_prev_stat(&ring_stats->rx_error_pkts,
+                                     &prev_stats->rx_error_pkts);
+
+               ring_stats->rx_agg_pkts = rte_le_to_cpu_64(resp->rx_agg_pkts);
+               bnxt_update_prev_stat(&ring_stats->rx_agg_pkts,
+                                     &prev_stats->rx_agg_pkts);
+
+               ring_stats->rx_agg_bytes = rte_le_to_cpu_64(resp->rx_agg_bytes);
+               bnxt_update_prev_stat(&ring_stats->rx_agg_bytes,
+                                     &prev_stats->rx_agg_bytes);
+
+               ring_stats->rx_agg_events = rte_le_to_cpu_64(resp->rx_agg_events);
+               bnxt_update_prev_stat(&ring_stats->rx_agg_events,
+                                     &prev_stats->rx_agg_events);
+
+               ring_stats->rx_agg_aborts = rte_le_to_cpu_64(resp->rx_agg_aborts);
+               bnxt_update_prev_stat(&ring_stats->rx_agg_aborts,
+                                     &prev_stats->rx_agg_aborts);
        } else {
-               stats->q_opackets[idx] = rte_le_to_cpu_64(resp->tx_ucast_pkts);
-               stats->q_opackets[idx] += rte_le_to_cpu_64(resp->tx_mcast_pkts);
-               stats->q_opackets[idx] += rte_le_to_cpu_64(resp->tx_bcast_pkts);
-               stats->q_obytes[idx] = rte_le_to_cpu_64(resp->tx_ucast_bytes);
-               stats->q_obytes[idx] += rte_le_to_cpu_64(resp->tx_mcast_bytes);
-               stats->q_obytes[idx] += rte_le_to_cpu_64(resp->tx_bcast_bytes);
+               struct bnxt_ring_stats *prev_stats = &bp->prev_tx_ring_stats[idx];
+
+               ring_stats->tx_ucast_pkts = rte_le_to_cpu_64(resp->tx_ucast_pkts);
+               bnxt_update_prev_stat(&ring_stats->tx_ucast_pkts,
+                                     &prev_stats->tx_ucast_pkts);
+
+               ring_stats->tx_mcast_pkts = rte_le_to_cpu_64(resp->tx_mcast_pkts);
+               bnxt_update_prev_stat(&ring_stats->tx_mcast_pkts,
+                                     &prev_stats->tx_mcast_pkts);
+
+               ring_stats->tx_bcast_pkts = rte_le_to_cpu_64(resp->tx_bcast_pkts);
+               bnxt_update_prev_stat(&ring_stats->tx_bcast_pkts,
+                                     &prev_stats->tx_bcast_pkts);
+
+               ring_stats->tx_ucast_bytes = rte_le_to_cpu_64(resp->tx_ucast_bytes);
+               bnxt_update_prev_stat(&ring_stats->tx_ucast_bytes,
+                                     &prev_stats->tx_ucast_bytes);
+
+               ring_stats->tx_mcast_bytes = rte_le_to_cpu_64(resp->tx_mcast_bytes);
+               bnxt_update_prev_stat(&ring_stats->tx_mcast_bytes,
+                                     &prev_stats->tx_mcast_bytes);
+
+               ring_stats->tx_bcast_bytes = rte_le_to_cpu_64(resp->tx_bcast_bytes);
+               bnxt_update_prev_stat(&ring_stats->tx_bcast_bytes,
+                                     &prev_stats->tx_bcast_bytes);
+
+               ring_stats->tx_discard_pkts = rte_le_to_cpu_64(resp->tx_discard_pkts);
+               bnxt_update_prev_stat(&ring_stats->tx_discard_pkts,
+                                     &prev_stats->tx_discard_pkts);
        }
 
        HWRM_UNLOCK();
@@ -4376,7 +4479,7 @@ int bnxt_hwrm_port_led_qcaps(struct bnxt *bp)
        req.port_id = bp->pf->port_id;
        rc = bnxt_hwrm_send_message(bp, &req, sizeof(req), BNXT_USE_CHIMP_MB);
 
-       HWRM_CHECK_RESULT();
+       HWRM_CHECK_RESULT_SILENT();
 
        if (resp->num_leds > 0 && resp->num_leds < BNXT_MAX_LED) {
                unsigned int i;
@@ -6035,6 +6138,7 @@ int bnxt_hwrm_poll_ver_get(struct bnxt *bp)
        int rc = 0;
 
        bp->max_req_len = HWRM_MAX_REQ_LEN;
+       bp->max_resp_len = BNXT_PAGE_SIZE;
        bp->hwrm_cmd_timeout = SHORT_HWRM_CMD_TIMEOUT;
 
        HWRM_PREP(&req, HWRM_VER_GET, BNXT_USE_CHIMP_MB);
@@ -6045,6 +6149,10 @@ int bnxt_hwrm_poll_ver_get(struct bnxt *bp)
        rc = bnxt_hwrm_send_message(bp, &req, sizeof(req), BNXT_USE_CHIMP_MB);
 
        HWRM_CHECK_RESULT_SILENT();
+
+       if (resp->flags & HWRM_VER_GET_OUTPUT_FLAGS_DEV_NOT_RDY)
+               rc = -EAGAIN;
+
        HWRM_UNLOCK();
 
        return rc;