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Wed, 26 Jun 2024 03:27:56 -0700 From: Dragos Tatulea Date: Wed, 26 Jun 2024 13:26:54 +0300 Subject: [PATCH vhost v2 18/24] vdpa/mlx5: Consolidate all VQ modify to Ready to use resume_vq() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-ID: <20240626-stage-vdpa-vq-precreate-v2-18-560c491078df@nvidia.com> References: <20240626-stage-vdpa-vq-precreate-v2-0-560c491078df@nvidia.com> In-Reply-To: <20240626-stage-vdpa-vq-precreate-v2-0-560c491078df@nvidia.com> To: "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , =?utf-8?q?Eugenio_P=C3=A9rez?= , Saeed Mahameed , Leon Romanovsky , Tariq Toukan , Si-Wei Liu CC: , , , , Cosmin Ratiu , Dragos Tatulea X-Mailer: b4 0.13.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL6PEPF00020E60:EE_|PH7PR12MB9202:EE_ X-MS-Office365-Filtering-Correlation-Id: 410338ca-e137-46c1-a3c3-08dc95caaec6 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230038|36860700011|376012|7416012|1800799022|82310400024; X-Microsoft-Antispam-Message-Info: =?utf-8?B?cmNYSTVRRkJXcko4UlJxdFcwcy9ZbTBHWmRxUTBHRVlwQ1dBajVHRTduNXVN?= =?utf-8?B?YytFWVhDTEU3cE90RnZ2c0RuUlB1QkpucUJKNWk5VkRQcWVhUGQ5Nk5pNE5s?= =?utf-8?B?LytPcEJnbFpNSzNTUER6YTRuTXRZTTFxYnFrR2FrdFhtQURmV0RBNU9GMFZH?= =?utf-8?B?Um5QWlloY3VPRTI5U1dCQmx3TllXVEFKN1FrdmRmeVNabTYvRlVoaDhsLy8w?= =?utf-8?B?QjNzSERia1JmU0RWRGpEQ3p3ZFByZ1JhazdwSUFDSXVVSElpSlNhWUZaOTRv?= =?utf-8?B?Y0VqK21OODdnV1hsV2dSUW5tZ0VwckxNUTQrWHIwQ0FCa00vVk5TREVYSk9k?= =?utf-8?B?Q2N4ZDN3L1RraytZZThLR1JlcTVvS1Y0OG9BMXA2YnJjc1h6bjBYR1hVejMw?= =?utf-8?B?Y1g4SFhtQUZwM2lFemRSL3dZb1RTRkRCSWlBeHErNEhXZDdXUkZvN25ja2tI?= =?utf-8?B?R25iSWRSdUF4TWVqVlhkeUU5V1RBZWIrbjQvczNxWEhTVUNrNDFWNEM3b0RS?= =?utf-8?B?SnE0c2NoT1hqYU9Da3g1U1dBSjQ3ZWVEY3lNT2V4MGViZFNNVWVySGRiQ3FQ?= =?utf-8?B?cllnV0tKaUYyOXlVZmZ3bG1kRUJwZ0N6cFNxYitRNGhxOUNPVGNpMEMxTHkw?= =?utf-8?B?SitFVDVxc2ZkUktMSWZzZVUzUnlVTDFQdUhKVXJ1SkxONHFIOE81SGM1RFF2?= =?utf-8?B?YTJPazRINDFGY3l3T0o1YVN6em14MjZJQTg3T3VXOUcxeEkzUE0zZjAvTzYz?= =?utf-8?B?bU1wUVNFbnQ5RWxlekQ1aHlnc3NIWFpWZUNYT0l3eThmVHZaL2RaN3lTbm4y?= =?utf-8?B?SDIvdTNoRWNiWmVhdk05ZkUzSzQ1Mkt0RVhsK1dZLzFWOGtsK1NET0V3L25T?= =?utf-8?B?dG44R1FNZmxTOVF1aXpwSzJDMkpnK3BmY2xyTC9kRlhOUngzTkRoYjhkd2RZ?= =?utf-8?B?SnFwbkpGTEtLZmI4c25tMkRpem5WdXVweUVJSFkzVEJWUVJTRW1vcnJQWUNU?= =?utf-8?B?UzdBNzlrVUZxcG5hZFdBMVZXcE1sRjdsa3RKNEdRaldhUEJsMW9pSWVPdFlu?= =?utf-8?B?Yk03TGRwc0RkNHZQenl0am9mNmF6eWNUbkZSRDBmay9Fd1V0Q0ZzemdYdXkr?= =?utf-8?B?NER4TzQzd0V6SG5seGhDb0lYODhNRXRkUUxkZGk2S28vSzJMcm5jYlJZQ01q?= =?utf-8?B?VUVlYW9IZ3hUN1VSMEc2WDR5M0dyZk9mQ09maERjVEVjeHNZOHdmV2ZKSzFQ?= =?utf-8?B?cTdpR1dPWGp1QTdJdnF2RDlSYlZXM2tkK1hoNFRqdUZlMFoxdW1GRkFXanB5?= =?utf-8?B?QnhXSVVzOXdyVDJtcXA3NkRJRllNTVo1MmZ5QnQ5UlFvTFgxSWZhM0kxc3Jm?= =?utf-8?B?ZHFnc2pGVUZPaUl3d2NLdExzSmcxOWt0MmIyVWFmUEJPMkZhdFV0MW0zWFlx?= =?utf-8?B?LzZSNUc3WHRBbSszTzE0NjlMT1I3NWMzOWtaTDIyNVZpemE0cGFob1lFYlVs?= =?utf-8?B?elR3SFE1RUIrZmtBaHEyUUpDVmlzNUF4ZWVKVXBDdDdud3hPTnZaWTZucDJ6?= =?utf-8?B?cVQ2Q3BiVnlTTWNxU1RDOU0xcGFBZUVwZUNGQjdYZXg0VVN2RkoxNWVaRnNC?= =?utf-8?B?alpuQlJjaXIvZW92Q1ROd3RiZlJzL1ZkUFBUNTJNTG0vOGlrRmpnck9iMldu?= =?utf-8?B?NWg1aTFKcmFVTUV2MEUvWVU0bDd6NXpFanJKN3ZRRUdZNjVTcFZiMlV2R09D?= =?utf-8?B?ZjZwMDJDUUw5TUJUbXNsS1NuYmVPd2ROeForM09DSE9NWmhZR1NPVlBSWXhX?= =?utf-8?B?K3dzZjBjeGNJQkFjNDdYbStBRFZUL3BhWmlzc0tPalEzcHpXWExvS1ZWZXVW?= =?utf-8?B?UGp0SUR3R1pXb2swa1VwYzVLTlRMRDFvYVdsT0U2V0RPM2c9PQ==?= X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230038)(36860700011)(376012)(7416012)(1800799022)(82310400024);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Jun 2024 10:28:12.6078 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 410338ca-e137-46c1-a3c3-08dc95caaec6 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BL6PEPF00020E60.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB9202 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. Reviewed-by: Cosmin Ratiu Acked-by: Eugenio P=C3=A9rez Signed-off-by: Dragos Tatulea --- 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 8ab5cf1bbc43..e65d488f7a08 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 mvqs_set_defaults(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_virtqueu= e *mvq); =20 static bool mlx5_vdpa_debug; =20 @@ -1500,16 +1501,14 @@ static int setup_vq(struct mlx5_vdpa_net *ndev, if (err) goto err_vq; =20 + mvq->initialized =3D true; + if (mvq->ready) { - err =3D 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 =3D resume_vq(ndev, mvq); + if (err) goto err_modify; - } } =20 - mvq->initialized =3D true; return 0; =20 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 =3D to_mvdev(vdev); struct mlx5_vdpa_net *ndev =3D to_mlx5_vdpa_ndev(mvdev); struct mlx5_vdpa_virtqueue *mvq; - int err; =20 if (!mvdev->actual_features) return; @@ -2439,14 +2437,10 @@ static void mlx5_vdpa_set_vq_ready(struct vdpa_devi= ce *vdev, u16 idx, bool ready if (!ready) { suspend_vq(ndev, mvq); } else { - err =3D 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 =3D false; - } } =20 - mvq->ready =3D ready; } =20 --=20 2.45.1