net/bnxt: fix VLAN strip

HWRM_VNIC_CFG command to configure VNIC dynamically with
traffic running is not working. Driver has to free and
recreate the VNIC and then reconfigure the VNIC filters.

Fixes: 7fe5668d2ea3 ("net/bnxt: support VLAN filter and strip")
Cc: stable@dpdk.org
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 83f475d..0b2c29b 100644 (file)
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -132,6 +132,7 @@ static int bnxt_dev_uninit(struct rte_eth_dev *eth_dev);
 static int bnxt_init_resources(struct bnxt *bp, bool reconfig_dev);
 static int bnxt_uninit_resources(struct bnxt *bp, bool reconfig_dev);
 static void bnxt_cancel_fw_health_check(struct bnxt *bp);
+static int bnxt_restore_vlan_filters(struct bnxt *bp);
 
 int is_bnxt_in_error(struct bnxt *bp)
 {
@@ -228,14 +229,97 @@ alloc_mem_err:
        return rc;
 }
 
-static int bnxt_init_chip(struct bnxt *bp)
+static int bnxt_setup_one_vnic(struct bnxt *bp, uint16_t vnic_id)
 {
+       struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
+       struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
+       uint64_t rx_offloads = dev_conf->rxmode.offloads;
        struct bnxt_rx_queue *rxq;
+       unsigned int j;
+       int rc;
+
+       rc = bnxt_vnic_grp_alloc(bp, vnic);
+       if (rc)
+               goto err_out;
+
+       PMD_DRV_LOG(DEBUG, "vnic[%d] = %p vnic->fw_grp_ids = %p\n",
+                   vnic_id, vnic, vnic->fw_grp_ids);
+
+       rc = bnxt_hwrm_vnic_alloc(bp, vnic);
+       if (rc)
+               goto err_out;
+
+       /* Alloc RSS context only if RSS mode is enabled */
+       if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS) {
+               int j, nr_ctxs = bnxt_rss_ctxts(bp);
+
+               rc = 0;
+               for (j = 0; j < nr_ctxs; j++) {
+                       rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic, j);
+                       if (rc)
+                               break;
+               }
+               if (rc) {
+                       PMD_DRV_LOG(ERR,
+                                   "HWRM vnic %d ctx %d alloc failure rc: %x\n",
+                                   vnic_id, j, rc);
+                       goto err_out;
+               }
+               vnic->num_lb_ctxts = nr_ctxs;
+       }
+
+       /*
+        * Firmware sets pf pair in default vnic cfg. If the VLAN strip
+        * setting is not available at this time, it will not be
+        * configured correctly in the CFA.
+        */
+       if (rx_offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
+               vnic->vlan_strip = true;
+       else
+               vnic->vlan_strip = false;
+
+       rc = bnxt_hwrm_vnic_cfg(bp, vnic);
+       if (rc)
+               goto err_out;
+
+       rc = bnxt_set_hwrm_vnic_filters(bp, vnic);
+       if (rc)
+               goto err_out;
+
+       for (j = 0; j < bp->rx_num_qs_per_vnic; j++) {
+               rxq = bp->eth_dev->data->rx_queues[j];
+
+               PMD_DRV_LOG(DEBUG,
+                           "rxq[%d]->vnic=%p vnic->fw_grp_ids=%p\n",
+                           j, rxq->vnic, rxq->vnic->fw_grp_ids);
+
+               if (BNXT_HAS_RING_GRPS(bp) && rxq->rx_deferred_start)
+                       rxq->vnic->fw_grp_ids[j] = INVALID_HW_RING_ID;
+       }
+
+       rc = bnxt_vnic_rss_configure(bp, vnic);
+       if (rc)
+               goto err_out;
+
+       bnxt_hwrm_vnic_plcmode_cfg(bp, vnic);
+
+       if (rx_offloads & DEV_RX_OFFLOAD_TCP_LRO)
+               bnxt_hwrm_vnic_tpa_cfg(bp, vnic, 1);
+       else
+               bnxt_hwrm_vnic_tpa_cfg(bp, vnic, 0);
+
+       return 0;
+err_out:
+       PMD_DRV_LOG(ERR, "HWRM vnic %d cfg failure rc: %x\n",
+                   vnic_id, rc);
+       return rc;
+}
+
+static int bnxt_init_chip(struct bnxt *bp)
+{
        struct rte_eth_link new;
        struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(bp->eth_dev);
-       struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
        struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
-       uint64_t rx_offloads = dev_conf->rxmode.offloads;
        uint32_t intr_vector = 0;
        uint32_t queue_id, base = BNXT_MISC_VEC_ID;
        uint32_t vec = BNXT_MISC_VEC_ID;
@@ -303,93 +387,11 @@ skip_cosq_cfg:
 
        /* VNIC configuration */
        for (i = 0; i < bp->nr_vnics; i++) {
-               struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
-               struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
-
-               rc = bnxt_vnic_grp_alloc(bp, vnic);
+               rc = bnxt_setup_one_vnic(bp, i);
                if (rc)
                        goto err_out;
-
-               PMD_DRV_LOG(DEBUG, "vnic[%d] = %p vnic->fw_grp_ids = %p\n",
-                           i, vnic, vnic->fw_grp_ids);
-
-               rc = bnxt_hwrm_vnic_alloc(bp, vnic);
-               if (rc) {
-                       PMD_DRV_LOG(ERR, "HWRM vnic %d alloc failure rc: %x\n",
-                               i, rc);
-                       goto err_out;
-               }
-
-               /* Alloc RSS context only if RSS mode is enabled */
-               if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS) {
-                       int j, nr_ctxs = bnxt_rss_ctxts(bp);
-
-                       rc = 0;
-                       for (j = 0; j < nr_ctxs; j++) {
-                               rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic, j);
-                               if (rc)
-                                       break;
-                       }
-                       if (rc) {
-                               PMD_DRV_LOG(ERR,
-                                 "HWRM vnic %d ctx %d alloc failure rc: %x\n",
-                                 i, j, rc);
-                               goto err_out;
-                       }
-                       vnic->num_lb_ctxts = nr_ctxs;
-               }
-
-               /*
-                * Firmware sets pf pair in default vnic cfg. If the VLAN strip
-                * setting is not available at this time, it will not be
-                * configured correctly in the CFA.
-                */
-               if (rx_offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
-                       vnic->vlan_strip = true;
-               else
-                       vnic->vlan_strip = false;
-
-               rc = bnxt_hwrm_vnic_cfg(bp, vnic);
-               if (rc) {
-                       PMD_DRV_LOG(ERR, "HWRM vnic %d cfg failure rc: %x\n",
-                               i, rc);
-                       goto err_out;
-               }
-
-               rc = bnxt_set_hwrm_vnic_filters(bp, vnic);
-               if (rc) {
-                       PMD_DRV_LOG(ERR,
-                               "HWRM vnic %d filter failure rc: %x\n",
-                               i, rc);
-                       goto err_out;
-               }
-
-               for (j = 0; j < bp->rx_num_qs_per_vnic; j++) {
-                       rxq = bp->eth_dev->data->rx_queues[j];
-
-                       PMD_DRV_LOG(DEBUG,
-                                   "rxq[%d]->vnic=%p vnic->fw_grp_ids=%p\n",
-                                   j, rxq->vnic, rxq->vnic->fw_grp_ids);
-
-                       if (BNXT_HAS_RING_GRPS(bp) && rxq->rx_deferred_start)
-                               rxq->vnic->fw_grp_ids[j] = INVALID_HW_RING_ID;
-               }
-
-               rc = bnxt_vnic_rss_configure(bp, vnic);
-               if (rc) {
-                       PMD_DRV_LOG(ERR,
-                                   "HWRM vnic set RSS failure rc: %x\n", rc);
-                       goto err_out;
-               }
-
-               bnxt_hwrm_vnic_plcmode_cfg(bp, vnic);
-
-               if (bp->eth_dev->data->dev_conf.rxmode.offloads &
-                   DEV_RX_OFFLOAD_TCP_LRO)
-                       bnxt_hwrm_vnic_tpa_cfg(bp, vnic, 1);
-               else
-                       bnxt_hwrm_vnic_tpa_cfg(bp, vnic, 0);
        }
+
        rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, &bp->vnic_info[0], 0, NULL);
        if (rc) {
                PMD_DRV_LOG(ERR,
@@ -1892,12 +1894,69 @@ bnxt_config_vlan_hw_filter(struct bnxt *bp, uint64_t rx_offloads)
        return 0;
 }
 
+static int bnxt_free_one_vnic(struct bnxt *bp, uint16_t vnic_id)
+{
+       struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
+       unsigned int i;
+       int rc;
+
+       /* Destroy vnic filters and vnic */
+       if (bp->eth_dev->data->dev_conf.rxmode.offloads &
+           DEV_RX_OFFLOAD_VLAN_FILTER) {
+               for (i = 0; i < RTE_ETHER_MAX_VLAN_ID; i++)
+                       bnxt_del_vlan_filter(bp, i);
+       }
+       bnxt_del_dflt_mac_filter(bp, vnic);
+
+       rc = bnxt_hwrm_vnic_free(bp, vnic);
+       if (rc)
+               return rc;
+
+       rte_free(vnic->fw_grp_ids);
+       vnic->fw_grp_ids = NULL;
+
+       return 0;
+}
+
+static int
+bnxt_config_vlan_hw_stripping(struct bnxt *bp, uint64_t rx_offloads)
+{
+       struct bnxt_vnic_info *vnic = BNXT_GET_DEFAULT_VNIC(bp);
+       int rc;
+
+       /* Destroy, recreate and reconfigure the default vnic */
+       rc = bnxt_free_one_vnic(bp, 0);
+       if (rc)
+               return rc;
+
+       /* default vnic 0 */
+       rc = bnxt_setup_one_vnic(bp, 0);
+       if (rc)
+               return rc;
+
+       if (bp->eth_dev->data->dev_conf.rxmode.offloads &
+           DEV_RX_OFFLOAD_VLAN_FILTER) {
+               rc = bnxt_add_vlan_filter(bp, 0);
+               bnxt_restore_vlan_filters(bp);
+       } else {
+               rc = bnxt_add_mac_filter(bp, vnic, NULL, 0, 0);
+       }
+
+       rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, vnic, 0, NULL);
+       if (rc)
+               return rc;
+
+       PMD_DRV_LOG(DEBUG, "VLAN Strip Offload: %d\n",
+                   !!(rx_offloads & DEV_RX_OFFLOAD_VLAN_STRIP));
+
+       return rc;
+}
+
 static int
 bnxt_vlan_offload_set_op(struct rte_eth_dev *dev, int mask)
 {
        uint64_t rx_offloads = dev->data->dev_conf.rxmode.offloads;
        struct bnxt *bp = dev->data->dev_private;
-       unsigned int i;
        int rc;
 
        rc = is_bnxt_in_error(bp);
@@ -1913,16 +1972,9 @@ bnxt_vlan_offload_set_op(struct rte_eth_dev *dev, int mask)
 
        if (mask & ETH_VLAN_STRIP_MASK) {
                /* Enable or disable VLAN stripping */
-               for (i = 0; i < bp->nr_vnics; i++) {
-                       struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
-                       if (rx_offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
-                               vnic->vlan_strip = true;
-                       else
-                               vnic->vlan_strip = false;
-                       bnxt_hwrm_vnic_cfg(bp, vnic);
-               }
-               PMD_DRV_LOG(DEBUG, "VLAN Strip Offload: %d\n",
-                       !!(rx_offloads & DEV_RX_OFFLOAD_VLAN_STRIP));
+               rc = bnxt_config_vlan_hw_stripping(bp, rx_offloads);
+               if (rc)
+                       return rc;
        }
 
        if (mask & ETH_VLAN_EXTEND_MASK) {