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vdpa/mlx5: fix event queue number query

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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: 8395927cdf ("vdpa/mlx5: prepare HW queues")
Cc: stable@dpdk.org

Signed-off-by: Xueming Li <xuemingl@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
This commit is contained in:
Xueming Li 2020-07-28 12:32:29 +00:00 committed by Ferruh Yigit
parent d0131e49c7
commit c47463272f
1 changed files with 1 additions and 4 deletions
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5
drivers/vdpa/mlx5/mlx5_vdpa_event.c
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@ -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;