diff mbox series

net/bnxt: fix dynamic VNIC count

Message ID 20210428220344.10028-1-lance.richardson@broadcom.com (mailing list archive)
State Accepted, archived
Delegated to: Ajit Khaparde
Headers
Series net/bnxt: fix dynamic VNIC count |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/iol-intel-Functional success Functional Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/iol-abi-testing success Testing PASS
ci/iol-testing success Testing PASS
ci/github-robot success github build: passed
ci/iol-mellanox-Performance success Performance Testing PASS
ci/Intel-compilation success Compilation OK
ci/intel-Testing success Testing PASS

Commit Message

Lance Richardson April 28, 2021, 10:03 p.m. UTC 
  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(-)

Comments

Stephen Hemminger April 28, 2021, 10:35 p.m. UTC | #1 
On Wed, 28 Apr 2021 18:03:44 -0400
Lance Richardson <lance.richardson@broadcom.com> wrote:

> 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>

Reported-by: Stephen Hemminger <sthemmin@microsoft.com>
Ajit Khaparde May 2, 2021, 10:32 p.m. UTC | #2 
On Wed, Apr 28, 2021 at 3:35 PM Stephen Hemminger <
stephen@networkplumber.org> wrote:

> On Wed, 28 Apr 2021 18:03:44 -0400
> Lance Richardson <lance.richardson@broadcom.com> wrote:
>
> > 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>
>
> Reported-by: Stephen Hemminger <sthemmin@microsoft.com>
>
Patch applied to dpdk-next-net-brcm. Thanks
diff mbox series

Patch

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,