X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fbnxt%2Fbnxt_rxq.c;h=bbcb3b06e7df50f600217414d5436bc47c424d2f;hb=f1f6ebc0eaf68a825c6175f5e6a436f7d91660c3;hp=1d95f1139493f8cebfeb53a1c06118c4563504c3;hpb=bd0a14c99f6588ea4c60a234e9e053fd2b329964;p=dpdk.git

diff --git a/drivers/net/bnxt/bnxt_rxq.c b/drivers/net/bnxt/bnxt_rxq.c
index 1d95f11394..bbcb3b06e7 100644
--- a/drivers/net/bnxt/bnxt_rxq.c
+++ b/drivers/net/bnxt/bnxt_rxq.c
@@ -1,5 +1,5 @@
 /* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2014-2018 Broadcom
+ * Copyright(c) 2014-2021 Broadcom
  * All rights reserved.
  */
 
@@ -8,7 +8,6 @@
 #include <rte_malloc.h>
 
 #include "bnxt.h"
-#include "bnxt_cpr.h"
 #include "bnxt_filter.h"
 #include "bnxt_hwrm.h"
 #include "bnxt_ring.h"
@@ -36,38 +35,11 @@ int bnxt_mq_rx_configure(struct bnxt *bp)
 	int start_grp_id, end_grp_id = 1, rc = 0;
 	struct bnxt_vnic_info *vnic;
 	struct bnxt_filter_info *filter;
-	enum rte_eth_nb_pools pools = bp->rx_cp_nr_rings, max_pools = 0;
+	enum rte_eth_nb_pools pools = 1, max_pools = 0;
 	struct bnxt_rx_queue *rxq;
 
 	bp->nr_vnics = 0;
 
-	/* Single queue mode */
-	if (bp->rx_cp_nr_rings < 2) {
-		vnic = &bp->vnic_info[0];
-		if (!vnic) {
-			PMD_DRV_LOG(ERR, "VNIC alloc failed\n");
-			rc = -ENOMEM;
-			goto err_out;
-		}
-		vnic->flags |= BNXT_VNIC_INFO_BCAST;
-		bp->nr_vnics++;
-
-		rxq = bp->eth_dev->data->rx_queues[0];
-		rxq->vnic = vnic;
-
-		vnic->func_default = true;
-		vnic->start_grp_id = 0;
-		vnic->end_grp_id = vnic->start_grp_id;
-		filter = bnxt_alloc_filter(bp);
-		if (!filter) {
-			PMD_DRV_LOG(ERR, "L2 filter alloc failed\n");
-			rc = -ENOMEM;
-			goto err_out;
-		}
-		STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
-		goto out;
-	}
-
 	/* Multi-queue mode */
 	if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_VMDQ_DCB_RSS) {
 		/* VMDq ONLY, VMDq+RSS, VMDq+DCB, VMDq+DCB+RSS */
@@ -75,6 +47,7 @@ int bnxt_mq_rx_configure(struct bnxt *bp)
 		switch (dev_conf->rxmode.mq_mode) {
 		case ETH_MQ_RX_VMDQ_RSS:
 		case ETH_MQ_RX_VMDQ_ONLY:
+		case ETH_MQ_RX_VMDQ_DCB_RSS:
 			/* FALLTHROUGH */
 			/* ETH_8/64_POOLs */
 			pools = conf->nb_queue_pools;
@@ -90,7 +63,7 @@ int bnxt_mq_rx_configure(struct bnxt *bp)
 				pools = max_pools;
 			break;
 		case ETH_MQ_RX_RSS:
-			pools = 1;
+			pools = bp->rx_cosq_cnt ? bp->rx_cosq_cnt : 1;
 			break;
 		default:
 			PMD_DRV_LOG(ERR, "Unsupported mq_mod %d\n",
@@ -98,7 +71,11 @@ int bnxt_mq_rx_configure(struct bnxt *bp)
 			rc = -EINVAL;
 			goto err_out;
 		}
+	} else if (!dev_conf->rxmode.mq_mode) {
+		pools = bp->rx_cosq_cnt ? bp->rx_cosq_cnt : pools;
 	}
+
+	pools = RTE_MIN(pools, bp->rx_cp_nr_rings);
 	nb_q_per_grp = bp->rx_cp_nr_rings / pools;
 	PMD_DRV_LOG(DEBUG, "pools = %u nb_q_per_grp = %u\n",
 		    pools, nb_q_per_grp);
@@ -144,6 +121,8 @@ int bnxt_mq_rx_configure(struct bnxt *bp)
 			rc = -ENOMEM;
 			goto err_out;
 		}
+		filter->mac_index = 0;
+		filter->flags |= HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_OUTERMOST;
 		/*
 		 * TODO: Configure & associate CFA rule for
 		 * each VNIC for each VMDq with MACVLAN, MACVLAN+TC
@@ -155,32 +134,24 @@ skip_filter_allocation:
 		end_grp_id += nb_q_per_grp;
 	}
 
-out:
+	bp->rx_num_qs_per_vnic = nb_q_per_grp;
+
 	if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
 		struct rte_eth_rss_conf *rss = &dev_conf->rx_adv_conf.rss_conf;
-		uint16_t hash_type = 0;
 
-		if (bp->flags & BNXT_FLAG_UPDATE_HASH) {
-			rss = &bp->rss_conf;
+		if (bp->flags & BNXT_FLAG_UPDATE_HASH)
 			bp->flags &= ~BNXT_FLAG_UPDATE_HASH;
-		}
-
-		if (rss->rss_hf & ETH_RSS_IPV4)
-			hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV4;
-		if (rss->rss_hf & ETH_RSS_NONFRAG_IPV4_TCP)
-			hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_TCP_IPV4;
-		if (rss->rss_hf & ETH_RSS_NONFRAG_IPV4_UDP)
-			hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_UDP_IPV4;
-		if (rss->rss_hf & ETH_RSS_IPV6)
-			hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV6;
-		if (rss->rss_hf & ETH_RSS_NONFRAG_IPV6_TCP)
-			hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_TCP_IPV6;
-		if (rss->rss_hf & ETH_RSS_NONFRAG_IPV6_UDP)
-			hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_UDP_IPV6;
 
 		for (i = 0; i < bp->nr_vnics; i++) {
+			uint32_t lvl = ETH_RSS_LEVEL(rss->rss_hf);
+
 			vnic = &bp->vnic_info[i];
-			vnic->hash_type = hash_type;
+			vnic->hash_type =
+				bnxt_rte_to_hwrm_hash_types(rss->rss_hf);
+			vnic->hash_mode =
+				bnxt_rte_to_hwrm_hash_level(bp,
+							    rss->rss_hf,
+							    lvl);
 
 			/*
 			 * Use the supplied key if the key length is
@@ -203,48 +174,59 @@ err_out:
 
 void bnxt_rx_queue_release_mbufs(struct bnxt_rx_queue *rxq)
 {
-	struct bnxt_sw_rx_bd *sw_ring;
+	struct rte_mbuf **sw_ring;
 	struct bnxt_tpa_info *tpa_info;
 	uint16_t i;
 
-	rte_spinlock_lock(&rxq->lock);
+	if (!rxq || !rxq->rx_ring)
+		return;
 
-	if (rxq) {
-		sw_ring = rxq->rx_ring->rx_buf_ring;
-		if (sw_ring) {
-			for (i = 0;
-			     i < rxq->rx_ring->rx_ring_struct->ring_size; i++) {
-				if (sw_ring[i].mbuf) {
-					rte_pktmbuf_free_seg(sw_ring[i].mbuf);
-					sw_ring[i].mbuf = NULL;
-				}
+	sw_ring = rxq->rx_ring->rx_buf_ring;
+	if (sw_ring) {
+#if defined(RTE_ARCH_X86) || defined(RTE_ARCH_ARM64)
+		/*
+		 * The vector receive burst function does not set used
+		 * mbuf pointers to NULL, do that here to simplify
+		 * cleanup logic.
+		 */
+		for (i = 0; i < rxq->rxrearm_nb; i++)
+			sw_ring[rxq->rxrearm_start + i] = NULL;
+		rxq->rxrearm_nb = 0;
+#endif
+		for (i = 0;
+		     i < rxq->rx_ring->rx_ring_struct->ring_size; i++) {
+			if (sw_ring[i]) {
+				if (sw_ring[i] != &rxq->fake_mbuf)
+					rte_pktmbuf_free_seg(sw_ring[i]);
+				sw_ring[i] = NULL;
 			}
 		}
-		/* Free up mbufs in Agg ring */
-		sw_ring = rxq->rx_ring->ag_buf_ring;
-		if (sw_ring) {
-			for (i = 0;
-			     i < rxq->rx_ring->ag_ring_struct->ring_size; i++) {
-				if (sw_ring[i].mbuf) {
-					rte_pktmbuf_free_seg(sw_ring[i].mbuf);
-					sw_ring[i].mbuf = NULL;
-				}
+	}
+	/* Free up mbufs in Agg ring */
+	sw_ring = rxq->rx_ring->ag_buf_ring;
+	if (sw_ring) {
+		for (i = 0;
+		     i < rxq->rx_ring->ag_ring_struct->ring_size; i++) {
+			if (sw_ring[i]) {
+				rte_pktmbuf_free_seg(sw_ring[i]);
+				sw_ring[i] = NULL;
 			}
 		}
+	}
 
-		/* Free up mbufs in TPA */
-		tpa_info = rxq->rx_ring->tpa_info;
-		if (tpa_info) {
-			for (i = 0; i < BNXT_TPA_MAX; i++) {
-				if (tpa_info[i].mbuf) {
-					rte_pktmbuf_free_seg(tpa_info[i].mbuf);
-					tpa_info[i].mbuf = NULL;
-				}
+	/* Free up mbufs in TPA */
+	tpa_info = rxq->rx_ring->tpa_info;
+	if (tpa_info) {
+		int max_aggs = BNXT_TPA_MAX_AGGS(rxq->bp);
+
+		for (i = 0; i < max_aggs; i++) {
+			if (tpa_info[i].mbuf) {
+				rte_pktmbuf_free_seg(tpa_info[i].mbuf);
+				tpa_info[i].mbuf = NULL;
 			}
 		}
 	}
 
-	rte_spinlock_unlock(&rxq->lock);
 }
 
 void bnxt_free_rx_mbufs(struct bnxt *bp)
@@ -263,15 +245,28 @@ void bnxt_rx_queue_release_op(void *rx_queue)
 	struct bnxt_rx_queue *rxq = (struct bnxt_rx_queue *)rx_queue;
 
 	if (rxq) {
+		if (is_bnxt_in_error(rxq->bp))
+			return;
+
+		bnxt_free_hwrm_rx_ring(rxq->bp, rxq->queue_id);
 		bnxt_rx_queue_release_mbufs(rxq);
 
 		/* Free RX ring hardware descriptors */
-		bnxt_free_ring(rxq->rx_ring->rx_ring_struct);
-		/* Free RX Agg ring hardware descriptors */
-		bnxt_free_ring(rxq->rx_ring->ag_ring_struct);
-
+		if (rxq->rx_ring) {
+			bnxt_free_ring(rxq->rx_ring->rx_ring_struct);
+			rte_free(rxq->rx_ring->rx_ring_struct);
+			/* Free RX Agg ring hardware descriptors */
+			bnxt_free_ring(rxq->rx_ring->ag_ring_struct);
+			rte_free(rxq->rx_ring->ag_ring_struct);
+
+			rte_free(rxq->rx_ring);
+		}
 		/* Free RX completion ring hardware descriptors */
-		bnxt_free_ring(rxq->cp_ring->cp_ring_struct);
+		if (rxq->cp_ring) {
+			bnxt_free_ring(rxq->cp_ring->cp_ring_struct);
+			rte_free(rxq->cp_ring->cp_ring_struct);
+			rte_free(rxq->cp_ring);
+		}
 
 		bnxt_free_rxq_stats(rxq);
 		rte_memzone_free(rxq->mz);
@@ -292,19 +287,21 @@ int bnxt_rx_queue_setup_op(struct rte_eth_dev *eth_dev,
 	uint64_t rx_offloads = eth_dev->data->dev_conf.rxmode.offloads;
 	struct bnxt_rx_queue *rxq;
 	int rc = 0;
-	uint8_t queue_state;
 
-	if (queue_idx >= bp->max_rx_rings) {
+	rc = is_bnxt_in_error(bp);
+	if (rc)
+		return rc;
+
+	if (queue_idx >= bnxt_max_rings(bp)) {
 		PMD_DRV_LOG(ERR,
 			"Cannot create Rx ring %d. Only %d rings available\n",
 			queue_idx, bp->max_rx_rings);
 		return -EINVAL;
 	}
 
-	if (!nb_desc || nb_desc > MAX_RX_DESC_CNT) {
+	if (nb_desc < BNXT_MIN_RING_DESC || nb_desc > MAX_RX_DESC_CNT) {
 		PMD_DRV_LOG(ERR, "nb_desc %d is invalid\n", nb_desc);
-		rc = -EINVAL;
-		goto out;
+		return -EINVAL;
 	}
 
 	if (eth_dev->data->rx_queues) {
@@ -316,21 +313,29 @@ int bnxt_rx_queue_setup_op(struct rte_eth_dev *eth_dev,
 				 RTE_CACHE_LINE_SIZE, socket_id);
 	if (!rxq) {
 		PMD_DRV_LOG(ERR, "bnxt_rx_queue allocation failed!\n");
-		rc = -ENOMEM;
-		goto out;
+		return -ENOMEM;
 	}
 	rxq->bp = bp;
 	rxq->mb_pool = mp;
 	rxq->nb_rx_desc = nb_desc;
-	rxq->rx_free_thresh = rx_conf->rx_free_thresh;
+	rxq->rx_free_thresh =
+		RTE_MIN(rte_align32pow2(nb_desc) / 4, RTE_BNXT_MAX_RX_BURST);
+
+	if (rx_conf->rx_drop_en != BNXT_DEFAULT_RX_DROP_EN)
+		PMD_DRV_LOG(NOTICE,
+			    "Per-queue config of drop-en is not supported.\n");
+	rxq->drop_en = BNXT_DEFAULT_RX_DROP_EN;
 
-	PMD_DRV_LOG(DEBUG, "RX Buf size is %d\n", rxq->rx_buf_use_size);
 	PMD_DRV_LOG(DEBUG, "RX Buf MTU %d\n", eth_dev->data->mtu);
 
 	rc = bnxt_init_rx_ring_struct(rxq, socket_id);
-	if (rc)
-		goto out;
+	if (rc) {
+		PMD_DRV_LOG(ERR,
+			    "init_rx_ring_struct failed!\n");
+		goto err;
+	}
 
+	PMD_DRV_LOG(DEBUG, "RX Buf size is %d\n", rxq->rx_buf_size);
 	rxq->queue_id = queue_idx;
 	rxq->port_id = eth_dev->data->port_id;
 	if (rx_offloads & DEV_RX_OFFLOAD_KEEP_CRC)
@@ -340,39 +345,51 @@ int bnxt_rx_queue_setup_op(struct rte_eth_dev *eth_dev,
 
 	eth_dev->data->rx_queues[queue_idx] = rxq;
 	/* Allocate RX ring hardware descriptors */
-	if (bnxt_alloc_rings(bp, queue_idx, NULL, rxq, rxq->cp_ring,
-			rxq->nq_ring, "rxr")) {
+	rc = bnxt_alloc_rings(bp, socket_id, queue_idx, NULL, rxq, rxq->cp_ring,
+			      NULL, "rxr");
+	if (rc) {
 		PMD_DRV_LOG(ERR,
-			"ring_dma_zone_reserve for rx_ring failed!\n");
-		bnxt_rx_queue_release_op(rxq);
-		rc = -ENOMEM;
-		goto out;
+			    "ring_dma_zone_reserve for rx_ring failed!\n");
+		goto err;
 	}
 	rte_atomic64_init(&rxq->rx_mbuf_alloc_fail);
 
-	rxq->rx_deferred_start = rx_conf->rx_deferred_start;
-	queue_state = rxq->rx_deferred_start ? RTE_ETH_QUEUE_STATE_STOPPED :
-						RTE_ETH_QUEUE_STATE_STARTED;
-	eth_dev->data->rx_queue_state[queue_idx] = queue_state;
-	rte_spinlock_init(&rxq->lock);
+	/* rxq 0 must not be stopped when used as async CPR */
+	if (!BNXT_NUM_ASYNC_CPR(bp) && queue_idx == 0)
+		rxq->rx_deferred_start = false;
+	else
+		rxq->rx_deferred_start = rx_conf->rx_deferred_start;
+
+	rxq->rx_started = rxq->rx_deferred_start ? false : true;
+	rxq->vnic = BNXT_GET_DEFAULT_VNIC(bp);
 
-out:
+	/* Configure mtu if it is different from what was configured before */
+	if (!queue_idx)
+		bnxt_mtu_set_op(eth_dev, eth_dev->data->mtu);
+
+	return 0;
+err:
+	bnxt_rx_queue_release_op(rxq);
 	return rc;
 }
 
 int
 bnxt_rx_queue_intr_enable_op(struct rte_eth_dev *eth_dev, uint16_t queue_id)
 {
+	struct bnxt *bp = eth_dev->data->dev_private;
 	struct bnxt_rx_queue *rxq;
 	struct bnxt_cp_ring_info *cpr;
 	int rc = 0;
 
+	rc = is_bnxt_in_error(bp);
+	if (rc)
+		return rc;
+
 	if (eth_dev->data->rx_queues) {
 		rxq = eth_dev->data->rx_queues[queue_id];
-		if (!rxq) {
-			rc = -EINVAL;
-			return rc;
-		}
+		if (!rxq)
+			return -EINVAL;
+
 		cpr = rxq->cp_ring;
 		B_CP_DB_REARM(cpr, cpr->cp_raw_cons);
 	}
@@ -382,16 +399,20 @@ bnxt_rx_queue_intr_enable_op(struct rte_eth_dev *eth_dev, uint16_t queue_id)
 int
 bnxt_rx_queue_intr_disable_op(struct rte_eth_dev *eth_dev, uint16_t queue_id)
 {
+	struct bnxt *bp = eth_dev->data->dev_private;
 	struct bnxt_rx_queue *rxq;
 	struct bnxt_cp_ring_info *cpr;
 	int rc = 0;
 
+	rc = is_bnxt_in_error(bp);
+	if (rc)
+		return rc;
+
 	if (eth_dev->data->rx_queues) {
 		rxq = eth_dev->data->rx_queues[queue_id];
-		if (!rxq) {
-			rc = -EINVAL;
-			return rc;
-		}
+		if (!rxq)
+			return -EINVAL;
+
 		cpr = rxq->cp_ring;
 		B_CP_DB_DISARM(cpr);
 	}
@@ -406,16 +427,31 @@ int bnxt_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 	struct bnxt_vnic_info *vnic = NULL;
 	int rc = 0;
 
+	rc = is_bnxt_in_error(bp);
+	if (rc)
+		return rc;
+
 	if (rxq == NULL) {
 		PMD_DRV_LOG(ERR, "Invalid Rx queue %d\n", rx_queue_id);
 		return -EINVAL;
 	}
 
+	/* Set the queue state to started here.
+	 * We check the status of the queue while posting buffer.
+	 * If queue is it started, we do not post buffers for Rx.
+	 */
+	rxq->rx_started = true;
+	dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
+
 	bnxt_free_hwrm_rx_ring(bp, rx_queue_id);
 	rc = bnxt_alloc_hwrm_rx_ring(bp, rx_queue_id);
 	if (rc)
 		return rc;
 
+	if (BNXT_CHIP_P5(bp)) {
+		/* Reconfigure default receive ring and MRU. */
+		bnxt_hwrm_vnic_cfg(bp, rxq->vnic);
+	}
 	PMD_DRV_LOG(INFO, "Rx queue started %d\n", rx_queue_id);
 
 	if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
@@ -427,19 +463,19 @@ int bnxt_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 
 			vnic->fw_grp_ids[rx_queue_id] =
 					bp->grp_info[rx_queue_id].fw_grp_id;
+			PMD_DRV_LOG(DEBUG,
+				    "vnic = %p fw_grp_id = %d\n",
+				    vnic, bp->grp_info[rx_queue_id].fw_grp_id);
 		}
 
-		PMD_DRV_LOG(DEBUG,
-			    "vnic = %p fw_grp_id = %d\n",
-			    vnic, bp->grp_info[rx_queue_id].fw_grp_id);
-
+		PMD_DRV_LOG(DEBUG, "Rx Queue Count %d\n", vnic->rx_queue_cnt);
 		rc = bnxt_vnic_rss_configure(bp, vnic);
 	}
 
-	if (rc == 0) {
+	if (rc != 0) {
 		dev->data->rx_queue_state[rx_queue_id] =
-				RTE_ETH_QUEUE_STATE_STARTED;
-		rxq->rx_deferred_start = false;
+				RTE_ETH_QUEUE_STATE_STOPPED;
+		rxq->rx_started = false;
 	}
 
 	PMD_DRV_LOG(INFO,
@@ -456,7 +492,12 @@ int bnxt_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 	struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
 	struct bnxt_vnic_info *vnic = NULL;
 	struct bnxt_rx_queue *rxq = NULL;
-	int rc = 0;
+	int active_queue_cnt = 0;
+	int i, rc = 0;
+
+	rc = is_bnxt_in_error(bp);
+	if (rc)
+		return rc;
 
 	/* For the stingray platform and other platforms needing tighter
 	 * control of resource utilization, Rx CQ 0 also works as
@@ -468,23 +509,73 @@ int bnxt_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 	}
 
 	rxq = bp->rx_queues[rx_queue_id];
-
-	if (rxq == NULL) {
+	if (!rxq) {
 		PMD_DRV_LOG(ERR, "Invalid Rx queue %d\n", rx_queue_id);
 		return -EINVAL;
 	}
 
+	vnic = rxq->vnic;
+	if (!vnic) {
+		PMD_DRV_LOG(ERR, "VNIC not initialized for RxQ %d\n",
+			    rx_queue_id);
+		return -EINVAL;
+	}
+
 	dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
-	rxq->rx_deferred_start = true;
+	rxq->rx_started = false;
 	PMD_DRV_LOG(DEBUG, "Rx queue stopped\n");
 
 	if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
-		vnic = rxq->vnic;
 		if (BNXT_HAS_RING_GRPS(bp))
 			vnic->fw_grp_ids[rx_queue_id] = INVALID_HW_RING_ID;
+
+		PMD_DRV_LOG(DEBUG, "Rx Queue Count %d\n", vnic->rx_queue_cnt);
 		rc = bnxt_vnic_rss_configure(bp, vnic);
 	}
 
+	/* Compute current number of active receive queues. */
+	for (i = vnic->start_grp_id; i < vnic->end_grp_id; i++)
+		if (bp->rx_queues[i]->rx_started)
+			active_queue_cnt++;
+
+	if (BNXT_CHIP_P5(bp)) {
+		/*
+		 * For Thor, we need to ensure that the VNIC default receive
+		 * ring corresponds to an active receive queue. When no queue
+		 * is active, we need to temporarily set the MRU to zero so
+		 * that packets are dropped early in the receive pipeline in
+		 * order to prevent the VNIC default receive ring from being
+		 * accessed.
+		 */
+		if (active_queue_cnt == 0) {
+			uint16_t saved_mru = vnic->mru;
+
+			vnic->mru = 0;
+			/* Reconfigure default receive ring and MRU. */
+			bnxt_hwrm_vnic_cfg(bp, vnic);
+			vnic->mru = saved_mru;
+		} else {
+			/* Reconfigure default receive ring. */
+			bnxt_hwrm_vnic_cfg(bp, vnic);
+		}
+	} else if (active_queue_cnt) {
+		/*
+		 * If the queue being stopped is the current default queue and
+		 * there are other active queues, pick one of them as the
+		 * default and reconfigure the vnic.
+		 */
+		if (vnic->dflt_ring_grp == bp->grp_info[rx_queue_id].fw_grp_id) {
+			for (i = vnic->start_grp_id; i < vnic->end_grp_id; i++) {
+				if (bp->rx_queues[i]->rx_started) {
+					vnic->dflt_ring_grp =
+						bp->grp_info[i].fw_grp_id;
+					bnxt_hwrm_vnic_cfg(bp, vnic);
+					break;
+				}
+			}
+		}
+	}
+
 	if (rc == 0)
 		bnxt_rx_queue_release_mbufs(rxq);