Message ID | 20231205104609.876194-6-dtatulea@nvidia.com |
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State | New |
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Tue, 5 Dec 2023 02:46:35 -0800 From: Dragos Tatulea <dtatulea@nvidia.com> To: "Michael S . Tsirkin" <mst@redhat.com>, Jason Wang <jasowang@redhat.com>, Eugenio Perez Martin <eperezma@redhat.com>, Si-Wei Liu <si-wei.liu@oracle.com>, Saeed Mahameed <saeedm@nvidia.com>, Leon Romanovsky <leon@kernel.org>, <virtualization@lists.linux-foundation.org>, Gal Pressman <gal@nvidia.com> CC: Dragos Tatulea <dtatulea@nvidia.com>, <kvm@vger.kernel.org>, <linux-kernel@vger.kernel.org>, Parav Pandit <parav@nvidia.com>, Xuan Zhuo <xuanzhuo@linux.alibaba.com> Subject: [PATCH vhost v2 5/8] vdpa/mlx5: Mark vq state for modification in hw vq Date: Tue, 5 Dec 2023 12:46:06 +0200 Message-ID: <20231205104609.876194-6-dtatulea@nvidia.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231205104609.876194-1-dtatulea@nvidia.com> References: <20231205104609.876194-1-dtatulea@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA2PEPF000015C8:EE_|LV3PR12MB9439:EE_ X-MS-Office365-Filtering-Correlation-Id: a87d189b-ced2-480c-126a-08dbf57f8021 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230031)(4636009)(396003)(376002)(136003)(39860400002)(346002)(230922051799003)(64100799003)(82310400011)(1800799012)(451199024)(186009)(36840700001)(40470700004)(46966006)(6666004)(36756003)(478600001)(1076003)(26005)(2616005)(70586007)(6636002)(70206006)(110136005)(336012)(54906003)(40480700001)(316002)(426003)(4326008)(8676002)(8936002)(47076005)(36860700001)(5660300002)(2906002)(7636003)(356005)(82740400003)(41300700001)(86362001)(40460700003);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Dec 2023 10:46:56.0953 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a87d189b-ced2-480c-126a-08dbf57f8021 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SA2PEPF000015C8.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV3PR12MB9439 X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Tue, 05 Dec 2023 02:47:17 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1784438574893701720 X-GMAIL-MSGID: 1784438574893701720 |
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vdpa/mlx5: Add support for resumable vqs
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Commit Message
Dragos Tatulea
Dec. 5, 2023, 10:46 a.m. UTC
.set_vq_state will set the indices and mark the fields to be modified in the hw vq. Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com> Reviewed-by: Gal Pressman <gal@nvidia.com> Acked-by: Eugenio PĂ©rez <eperezma@redhat.com> --- drivers/vdpa/mlx5/net/mlx5_vnet.c | 8 ++++++++ include/linux/mlx5/mlx5_ifc_vdpa.h | 2 ++ 2 files changed, 10 insertions(+)
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index 80e066de0866..d6c8506cec8f 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c @@ -1249,6 +1249,12 @@ static int modify_virtqueue(struct mlx5_vdpa_net *ndev, MLX5_SET64(virtio_q, vq_ctx, available_addr, mvq->driver_addr); } + if (mvq->modified_fields & MLX5_VIRTQ_MODIFY_MASK_VIRTIO_Q_AVAIL_IDX) + MLX5_SET(virtio_net_q_object, obj_context, hw_available_index, mvq->avail_idx); + + if (mvq->modified_fields & MLX5_VIRTQ_MODIFY_MASK_VIRTIO_Q_USED_IDX) + MLX5_SET(virtio_net_q_object, obj_context, hw_used_index, mvq->used_idx); + MLX5_SET64(virtio_net_q_object, obj_context, modify_field_select, mvq->modified_fields); err = mlx5_cmd_exec(ndev->mvdev.mdev, in, inlen, out, sizeof(out)); if (err) @@ -2328,6 +2334,8 @@ static int mlx5_vdpa_set_vq_state(struct vdpa_device *vdev, u16 idx, mvq->used_idx = state->split.avail_index; mvq->avail_idx = state->split.avail_index; + mvq->modified_fields |= MLX5_VIRTQ_MODIFY_MASK_VIRTIO_Q_AVAIL_IDX | + MLX5_VIRTQ_MODIFY_MASK_VIRTIO_Q_USED_IDX; return 0; } diff --git a/include/linux/mlx5/mlx5_ifc_vdpa.h b/include/linux/mlx5/mlx5_ifc_vdpa.h index 9594ac405740..32e712106e68 100644 --- a/include/linux/mlx5/mlx5_ifc_vdpa.h +++ b/include/linux/mlx5/mlx5_ifc_vdpa.h @@ -146,6 +146,8 @@ enum { MLX5_VIRTQ_MODIFY_MASK_DIRTY_BITMAP_PARAMS = (u64)1 << 3, MLX5_VIRTQ_MODIFY_MASK_DIRTY_BITMAP_DUMP_ENABLE = (u64)1 << 4, MLX5_VIRTQ_MODIFY_MASK_VIRTIO_Q_ADDRS = (u64)1 << 6, + MLX5_VIRTQ_MODIFY_MASK_VIRTIO_Q_AVAIL_IDX = (u64)1 << 7, + MLX5_VIRTQ_MODIFY_MASK_VIRTIO_Q_USED_IDX = (u64)1 << 8, MLX5_VIRTQ_MODIFY_MASK_DESC_GROUP_MKEY = (u64)1 << 14, };