DPDK patches and discussions
 help / color / mirror / Atom feed
* [dpdk-dev] [PATCH] net/bnxt: fix dynamic VNIC count
@ 2021-04-28 22:03 Lance Richardson
  2021-04-28 22:35 ` Stephen Hemminger
  0 siblings, 1 reply; 3+ messages in thread
From: Lance Richardson @ 2021-04-28 22:03 UTC (permalink / raw)
  To: Ajit Khaparde, Somnath Kotur, Venkat Duvvuru, Kalesh AP, Rahul Gupta
  Cc: dev, stable

[-- Attachment #1: Type: text/plain, Size: 1906 bytes --]

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: 49d0709b257f ("net/bnxt: delete and flush L2 filters cleanly")
Fixes: d24610f7bfda ("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 Kumar Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/net/bnxt/bnxt.h      | 2 +-
 drivers/net/bnxt/bnxt_flow.c | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h
index bd2dec4d63..a385710846 100644
--- a/drivers/net/bnxt/bnxt.h
+++ b/drivers/net/bnxt/bnxt.h
@@ -719,7 +719,7 @@ 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;
diff --git a/drivers/net/bnxt/bnxt_flow.c b/drivers/net/bnxt/bnxt_flow.c
index 844bf1520f..73fd24cd9a 100644
--- a/drivers/net/bnxt/bnxt_flow.c
+++ b/drivers/net/bnxt/bnxt_flow.c
@@ -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,
-- 
2.25.1


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2021-05-02 22:33 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-28 22:03 [dpdk-dev] [PATCH] net/bnxt: fix dynamic VNIC count Lance Richardson
2021-04-28 22:35 ` Stephen Hemminger
2021-05-02 22:32   ` Ajit Khaparde

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).