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net/bnxt: fix VNIC config on Rx queue stop

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Reconfigure a vnic's default ring if the current default ring is stopped
by the application. It picks the lowest numbered ring that is currently
active to be the new default, and issues the hwrm_vnic_cfg command to
update the configuration. Applies to adapters that are not Thor-based.

Fixes: 9b63c6fd70e3 ("net/bnxt: support Rx/Tx queue start/stop")
Cc: stable@dpdk.org

Signed-off-by: Samik Gupta <samik.gupta@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Lance Richardson <lance.richardson@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
This commit is contained in:
Samik Gupta 2020-11-06 16:41:21 -05:00 committed by Ferruh Yigit
parent d424af43e6
commit e36b1cd6b8
1 changed files with 21 additions and 5 deletions
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26
drivers/net/bnxt/bnxt_rxq.c
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@ -557,12 +557,12 @@ int bnxt_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
rc = bnxt_vnic_rss_configure(bp, vnic);
}
if (BNXT_CHIP_THOR(bp)) {
/* 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++;
/* 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_THOR(bp)) {
/*
* For Thor, we need to ensure that the VNIC default receive
* ring corresponds to an active receive queue. When no queue
@ -582,6 +582,22 @@ int bnxt_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
/* 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)