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From: Dragos Tatulea <dtatulea@nvidia.com>
To: "Michael S. Tsirkin" <mst@redhat.com>,
	"Jason Wang" <jasowang@redhat.com>,
	"Xuan Zhuo" <xuanzhuo@linux.alibaba.com>,
	"Eugenio Pérez" <eperezma@redhat.com>,
	"Saeed Mahameed" <saeedm@nvidia.com>,
	"Leon Romanovsky" <leon@kernel.org>,
	"Tariq Toukan" <tariqt@nvidia.com>,
	"Si-Wei Liu" <si-wei.liu@oracle.com>
Cc: <virtualization@lists.linux.dev>, <linux-kernel@vger.kernel.org>,
	<linux-rdma@vger.kernel.org>, <netdev@vger.kernel.org>,
	Dragos Tatulea <dtatulea@nvidia.com>,
	Cosmin Ratiu <cratiu@nvidia.com>
Subject: [PATCH vhost 17/23] vdpa/mlx5: Consolidate all VQ modify to Ready to use resume_vq()
Date: Mon, 17 Jun 2024 18:07:51 +0300	[thread overview]
Message-ID: <20240617-stage-vdpa-vq-precreate-v1-17-8c0483f0ca2a@nvidia.com> (raw)
In-Reply-To: <20240617-stage-vdpa-vq-precreate-v1-0-8c0483f0ca2a@nvidia.com>

There are a few more places modifying the VQ to Ready directly. Let's
consolidate them into resume_vq().

The redundant warnings for resume_vq() errors can also be dropped.

There is one special case that needs to be handled for virtio-vdpa:
the initialized flag must be set to true earlier in setup_vq() so that
resume_vq() doesn't return early.

Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
---
 drivers/vdpa/mlx5/net/mlx5_vnet.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index e3a82c43b44e..f5d5b25cdb01 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -160,6 +160,7 @@ static void free_fixed_resources(struct mlx5_vdpa_net *ndev);
 static void init_mvqs(struct mlx5_vdpa_net *ndev);
 static int setup_vq_resources(struct mlx5_vdpa_net *ndev, bool filled);
 static void teardown_vq_resources(struct mlx5_vdpa_net *ndev);
+static int resume_vq(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtqueue *mvq);
 
 static bool mlx5_vdpa_debug;
 
@@ -1500,16 +1501,14 @@ static int setup_vq(struct mlx5_vdpa_net *ndev,
 	if (err)
 		goto err_vq;
 
+	mvq->initialized = true;
+
 	if (mvq->ready) {
-		err = modify_virtqueue_state(ndev, mvq, MLX5_VIRTIO_NET_Q_OBJECT_STATE_RDY);
-		if (err) {
-			mlx5_vdpa_warn(&ndev->mvdev, "failed to modify to ready vq idx %d(%d)\n",
-				       idx, err);
+		err = resume_vq(ndev, mvq);
+		if (err)
 			goto err_modify;
-		}
 	}
 
-	mvq->initialized = true;
 	return 0;
 
 err_modify:
@@ -2422,7 +2421,6 @@ static void mlx5_vdpa_set_vq_ready(struct vdpa_device *vdev, u16 idx, bool ready
 	struct mlx5_vdpa_dev *mvdev = to_mvdev(vdev);
 	struct mlx5_vdpa_net *ndev = to_mlx5_vdpa_ndev(mvdev);
 	struct mlx5_vdpa_virtqueue *mvq;
-	int err;
 
 	if (!mvdev->actual_features)
 		return;
@@ -2439,14 +2437,10 @@ static void mlx5_vdpa_set_vq_ready(struct vdpa_device *vdev, u16 idx, bool ready
 	if (!ready) {
 		suspend_vq(ndev, mvq);
 	} else {
-		err = modify_virtqueue_state(ndev, mvq, MLX5_VIRTIO_NET_Q_OBJECT_STATE_RDY);
-		if (err) {
-			mlx5_vdpa_warn(mvdev, "modify VQ %d to ready failed (%d)\n", idx, err);
+		if (resume_vq(ndev, mvq))
 			ready = false;
-		}
 	}
 
-
 	mvq->ready = ready;
 }
 

-- 
2.45.1


  parent reply	other threads:[~2024-06-17 15:09 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-17 15:07 [PATCH vhost 00/23] vdpa/mlx5: Pre-create HW VQs to reduce LM downtime Dragos Tatulea
2024-06-17 15:07 ` [PATCH vhost 01/23] vdpa/mlx5: Clarify meaning thorough function rename Dragos Tatulea
2024-06-19 10:37   ` Eugenio Perez Martin
2024-06-17 15:07 ` [PATCH vhost 02/23] vdpa/mlx5: Make setup/teardown_vq_resources() symmetrical Dragos Tatulea
2024-06-19 10:38   ` Eugenio Perez Martin
2024-06-17 15:07 ` [PATCH vhost 03/23] vdpa/mlx5: Drop redundant code Dragos Tatulea
2024-06-19 10:55   ` Eugenio Perez Martin
2024-06-17 15:07 ` [PATCH vhost 04/23] vdpa/mlx5: Drop redundant check in teardown_virtqueues() Dragos Tatulea
2024-06-19 10:56   ` Eugenio Perez Martin
2024-06-17 15:07 ` [PATCH vhost 05/23] vdpa/mlx5: Iterate over active VQs during suspend/resume Dragos Tatulea
2024-06-19 11:04   ` Eugenio Perez Martin
2024-06-17 15:07 ` [PATCH vhost 06/23] vdpa/mlx5: Remove duplicate suspend code Dragos Tatulea
2024-06-19 11:02   ` Eugenio Perez Martin
2024-06-17 15:07 ` [PATCH vhost 07/23] vdpa/mlx5: Initialize and reset device with one queue pair Dragos Tatulea
2024-06-17 15:07 ` [PATCH vhost 08/23] vdpa/mlx5: Clear and reinitialize software VQ data on reset Dragos Tatulea
2024-06-19 11:28   ` Eugenio Perez Martin
2024-06-19 17:03     ` Dragos Tatulea
2024-06-17 15:07 ` [PATCH vhost 09/23] vdpa/mlx5: Add support for modifying the virtio_version VQ field Dragos Tatulea
2024-06-17 15:07 ` [PATCH vhost 10/23] vdpa/mlx5: Add support for modifying the VQ features field Dragos Tatulea
2024-06-17 15:07 ` [PATCH vhost 11/23] vdpa/mlx5: Set an initial size on the VQ Dragos Tatulea
2024-06-19 15:08   ` Eugenio Perez Martin
2024-06-19 17:06     ` Dragos Tatulea
2024-06-17 15:07 ` [PATCH vhost 12/23] vdpa/mlx5: Start off rqt_size with max VQPs Dragos Tatulea
2024-06-19 15:33   ` Eugenio Perez Martin
2024-06-17 15:07 ` [PATCH vhost 13/23] vdpa/mlx5: Set mkey modified flags on all VQs Dragos Tatulea
2024-06-19 15:33   ` Eugenio Perez Martin
2024-06-17 15:07 ` [PATCH vhost 14/23] vdpa/mlx5: Allow creation of blank VQs Dragos Tatulea
2024-06-17 15:07 ` [PATCH vhost 15/23] vdpa/mlx5: Accept Init -> Ready VQ transition in resume_vq() Dragos Tatulea
2024-06-17 15:07 ` [PATCH vhost 16/23] vdpa/mlx5: Add error code for suspend/resume VQ Dragos Tatulea
2024-06-19 15:41   ` Eugenio Perez Martin
2024-06-17 15:07 ` Dragos Tatulea [this message]
2024-06-19 15:43   ` [PATCH vhost 17/23] vdpa/mlx5: Consolidate all VQ modify to Ready to use resume_vq() Eugenio Perez Martin
2024-06-17 15:07 ` [PATCH vhost 18/23] vdpa/mlx5: Forward error in suspend/resume device Dragos Tatulea
2024-06-23 11:19   ` Zhu Yanjun
2024-06-26  9:28     ` Dragos Tatulea
2024-06-17 15:07 ` [PATCH vhost 19/23] vdpa/mlx5: Use suspend/resume during VQP change Dragos Tatulea
2024-06-19 15:46   ` Eugenio Perez Martin
2024-06-17 15:07 ` [PATCH vhost 20/23] vdpa/mlx5: Pre-create hardware VQs at vdpa .dev_add time Dragos Tatulea
2024-06-19 15:54   ` Eugenio Perez Martin
2024-06-26  9:27     ` Dragos Tatulea
2024-07-03 16:01       ` Eugenio Perez Martin
2024-07-08 11:01         ` Dragos Tatulea
2024-07-08 11:11           ` Michael S. Tsirkin
2024-07-08 11:17             ` Dragos Tatulea
2024-07-08 11:25               ` Michael S. Tsirkin
2024-07-08 16:22   ` Zhu Yanjun
2024-07-08 16:43     ` Dragos Tatulea
2024-06-17 15:07 ` [PATCH vhost 21/23] vdpa/mlx5: Re-create HW VQs under certain conditions Dragos Tatulea
2024-06-19 16:04   ` Eugenio Perez Martin
2024-06-17 15:07 ` [PATCH vhost 22/23] vdpa/mlx5: Don't reset VQs more than necessary Dragos Tatulea
2024-06-19 16:14   ` Eugenio Perez Martin
2024-06-17 15:07 ` [PATCH vhost 23/23] vdpa/mlx5: Don't enable non-active VQs in .set_vq_ready() Dragos Tatulea
2024-06-19 16:39   ` Eugenio Perez Martin

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