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From: Xueming Li <xuemingl@mellanox.com>
Cc: dev@dpdk.org, Asaf@dpdk.org, "Penso <asafp"@mellanox.com
Subject: [dpdk-dev] [v3] vdpa/mlx5: fix event queue number query
Date: Tue, 28 Jul 2020 12:32:29 +0000
Message-ID: <1595939549-21604-1-git-send-email-xuemingl@mellanox.com> (raw)
In-Reply-To: <1595916684-30135-1-git-send-email-xuemingl@mellanox.com>

Vdpa example failed on vq setup, the api to get event queue of specified
core failed.

Internal api devx_query_eqn expects index of event queue vectors, no
need to use cpu id. As the doorbell handling thread is per device, it's
sufficient to use default event queue.

This patch uses the default id(0) as event queue index.

Fixes: 8395927cdfaf ("vdpa/mlx5: prepare HW queues")

Signed-off-by: Xueming Li <xuemingl@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
---
 drivers/vdpa/mlx5/mlx5_vdpa_event.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/vdpa/mlx5/mlx5_vdpa_event.c b/drivers/vdpa/mlx5/mlx5_vdpa_event.c
index 13ad43611e..159831920f 100644
--- a/drivers/vdpa/mlx5/mlx5_vdpa_event.c
+++ b/drivers/vdpa/mlx5/mlx5_vdpa_event.c
@@ -51,12 +51,9 @@ mlx5_vdpa_event_qp_global_release(struct mlx5_vdpa_priv *priv)
 static int
 mlx5_vdpa_event_qp_global_prepare(struct mlx5_vdpa_priv *priv)
 {
-	uint32_t lcore;
-
 	if (priv->eventc)
 		return 0;
-	lcore = (uint32_t)rte_lcore_to_cpu_id(-1);
-	if (mlx5_glue->devx_query_eqn(priv->ctx, lcore, &priv->eqn)) {
+	if (mlx5_glue->devx_query_eqn(priv->ctx, 0, &priv->eqn)) {
 		rte_errno = errno;
 		DRV_LOG(ERR, "Failed to query EQ number %d.", rte_errno);
 		return -1;
-- 
2.17.1


  parent reply	other threads:[~2020-07-28 12:32 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-28  6:11 [dpdk-dev] [PATCH] vdpa/mlx5: use master core Id for vhost thread Xueming Li
2020-07-28  6:22 ` [dpdk-dev] [v1] vdpa/mlx5: use control " Xueming Li
2020-07-28  7:08 ` [dpdk-dev] [PATCH] vdpa/mlx5: use master " David Marchand
2020-07-28  7:19   ` Matan Azrad
2020-07-28  7:25     ` David Marchand
2020-07-28  7:30       ` Matan Azrad
2020-07-28  7:53         ` David Marchand
2020-07-28  8:06           ` Xueming(Steven) Li
2020-07-28  8:27             ` Matan Azrad
2020-07-28  8:30               ` David Marchand
2020-07-28  8:24 ` Xueming(Steven) Li
2020-07-28  9:22 ` [dpdk-dev] [v2] vdpa/mlx5: fix event queue number query Xueming Li
2020-07-28 12:05   ` David Marchand
2020-07-28 12:26     ` Xueming(Steven) Li
2020-07-28 12:32 ` Xueming Li [this message]
2020-07-28 14:04   ` [dpdk-dev] [v3] " Maxime Coquelin
2020-07-28 15:55   ` Maxime Coquelin

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