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net/bnxt: fix dynamic VNIC count

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Ensure that the current count of in-use VNICs is decremented
when a VNIC is freed. Don't attempt VNIC allocation when the
maximum supported number of VNICs is currently allocated.

Fixes: 49d0709b25 ("net/bnxt: delete and flush L2 filters cleanly")
Fixes: d24610f7bf ("net/bnxt: allow flow creation when RSS is enabled")
Cc: stable@dpdk.org

Signed-off-by: Lance Richardson <lance.richardson@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reported-by: Stephen Hemminger <sthemmin@microsoft.com>
This commit is contained in:
Lance Richardson 2021-04-28 18:03:44 -04:00 committed by Ajit Khaparde
parent f8120fd07b
commit a0c2315a2a
2 changed files with 6 additions and 1 deletions
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2
drivers/net/bnxt/bnxt.h
View File

@ -720,7 +720,7 @@ struct bnxt {
uint32_t max_ring_grps;
struct bnxt_ring_grp_info *grp_info;
unsigned int nr_vnics;
uint16_t nr_vnics;
#define BNXT_GET_DEFAULT_VNIC(bp) (&(bp)->vnic_info[0])
struct bnxt_vnic_info *vnic_info;

5
drivers/net/bnxt/bnxt_flow.c
View File

@ -925,6 +925,9 @@ static int bnxt_vnic_prep(struct bnxt *bp, struct bnxt_vnic_info *vnic)
uint64_t rx_offloads = dev_conf->rxmode.offloads;
int rc;
if (bp->nr_vnics > bp->max_vnics - 1)
return -ENOMEM;
rc = bnxt_vnic_grp_alloc(bp, vnic);
if (rc)
goto ret;
@ -1550,6 +1553,7 @@ bnxt_flow_validate(struct rte_eth_dev *dev,
bnxt_hwrm_vnic_ctx_free(bp, vnic);
bnxt_hwrm_vnic_free(bp, vnic);
vnic->rx_queue_cnt = 0;
bp->nr_vnics--;
PMD_DRV_LOG(DEBUG, "Free VNIC\n");
}
}
@ -2011,6 +2015,7 @@ _bnxt_flow_destroy(struct bnxt *bp,
bnxt_hwrm_vnic_free(bp, vnic);
vnic->rx_queue_cnt = 0;
bp->nr_vnics--;
}
} else {
rte_flow_error_set(error, -ret,