diff mbox series

net/mlx5: fix shared Rx queue list management

Message ID 20231113072448.6814-1-bingz@nvidia.com (mailing list archive)
State Accepted, archived
Delegated to: Raslan Darawsheh
Headers
Series net/mlx5: fix shared Rx queue list management |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/loongarch-compilation success Compilation OK
ci/loongarch-unit-testing success Unit Testing PASS
ci/github-robot: build success github build: passed
ci/iol-intel-Performance success Performance Testing PASS
ci/iol-intel-Functional success Functional Testing PASS
ci/iol-mellanox-Performance success Performance Testing PASS
ci/iol-compile-amd64-testing success Testing PASS
ci/iol-unit-amd64-testing success Testing PASS
ci/iol-unit-arm64-testing success Testing PASS
ci/iol-sample-apps-testing success Testing PASS
ci/iol-compile-arm64-testing success Testing PASS
ci/iol-broadcom-Performance success Performance Testing PASS
ci/iol-broadcom-Functional success Functional Testing PASS

Commit Message

Bing Zhao Nov. 13, 2023, 7:24 a.m. UTC 
  In shared Rx queue case, the shared control structure could only be
released after the last port's dereference in the group.

There is another management list that holding all of the used Rx
queues' structures for a port. If the reference count of a control
structure is changed to zero during port close, it can be removed
from the list directly without freeing the resource.

Fixes: 09c2555303be ("net/mlx5: support shared Rx queue")
Cc: xuemingl@nvidia.com
Cc: stable@dpdk.org

Signed-off-by: Bing Zhao <bingz@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
---
 drivers/net/mlx5/mlx5_rxq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Raslan Darawsheh Nov. 14, 2023, 8:13 a.m. UTC | #1 
Hi,

> -----Original Message-----
> From: Bing Zhao <bingz@nvidia.com>
> Sent: Monday, November 13, 2023 9:25 AM
> To: Matan Azrad <matan@nvidia.com>; Slava Ovsiienko
> <viacheslavo@nvidia.com>; Raslan Darawsheh <rasland@nvidia.com>;
> Suanming Mou <suanmingm@nvidia.com>; Ori Kam <orika@nvidia.com>
> Cc: dev@dpdk.org; Xueming(Steven) Li <xuemingl@nvidia.com>;
> stable@dpdk.org
> Subject: [PATCH] net/mlx5: fix shared Rx queue list management
> 
> In shared Rx queue case, the shared control structure could only be released
> after the last port's dereference in the group.
> 
> There is another management list that holding all of the used Rx queues'
> structures for a port. If the reference count of a control structure is changed to
> zero during port close, it can be removed from the list directly without freeing
> the resource.
> 
> Fixes: 09c2555303be ("net/mlx5: support shared Rx queue")
> Cc: xuemingl@nvidia.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Bing Zhao <bingz@nvidia.com>
> Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>

Patch applied to next-net-mlx,

Kindest regards
Raslan Darawsheh
diff mbox series

Patch

diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index 88b2dc54b3..2c51af11c7 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -2280,6 +2280,7 @@  mlx5_rxq_release(struct rte_eth_dev *dev, uint16_t idx)
 					RTE_ETH_QUEUE_STATE_STOPPED;
 		}
 	} else { /* Refcnt zero, closing device. */
+		LIST_REMOVE(rxq_ctrl, next);
 		LIST_REMOVE(rxq, owner_entry);
 		if (LIST_EMPTY(&rxq_ctrl->owners)) {
 			if (!rxq_ctrl->is_hairpin)
@@ -2287,7 +2288,6 @@  mlx5_rxq_release(struct rte_eth_dev *dev, uint16_t idx)
 					(&rxq_ctrl->rxq.mr_ctrl.cache_bh);
 			if (rxq_ctrl->rxq.shared)
 				LIST_REMOVE(rxq_ctrl, share_entry);
-			LIST_REMOVE(rxq_ctrl, next);
 			mlx5_free(rxq_ctrl);
 		}
 		dev->data->rx_queues[idx] = NULL;