Message ID | 20231201104857.665737-7-dtatulea@nvidia.com |
---|---|
State | New |
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Fri, 1 Dec 2023 02:49:38 -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> CC: Dragos Tatulea <dtatulea@nvidia.com>, <kvm@vger.kernel.org>, <linux-kernel@vger.kernel.org>, Gal Pressman <galp@nvidia.com>, Parav Pandit <parav@nvidia.com>, Xuan Zhuo <xuanzhuo@linux.alibaba.com> Subject: [PATCH vhost 6/7] vdpa/mlx5: Mark vq state for modification in hw vq Date: Fri, 1 Dec 2023 12:48:56 +0200 Message-ID: <20231201104857.665737-7-dtatulea@nvidia.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231201104857.665737-1-dtatulea@nvidia.com> References: <20231201104857.665737-1-dtatulea@nvidia.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF0001A0FC:EE_|IA1PR12MB8405:EE_ X-MS-Office365-Filtering-Correlation-Id: 9b5aea7f-6dc4-4869-02e8-08dbf25b4323 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)(1800799012)(451199024)(64100799003)(82310400011)(186009)(36840700001)(40470700004)(46966006)(40460700003)(426003)(336012)(82740400003)(36756003)(86362001)(7636003)(356005)(47076005)(36860700001)(110136005)(70586007)(70206006)(4326008)(8676002)(8936002)(54906003)(316002)(40480700001)(5660300002)(2906002)(2616005)(1076003)(478600001)(26005)(6666004)(41300700001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Dec 2023 10:49:58.3495 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 9b5aea7f-6dc4-4869-02e8-08dbf25b4323 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: BL02EPF0001A0FC.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR12MB8405 X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on agentk.vger.email 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 (agentk.vger.email [0.0.0.0]); Fri, 01 Dec 2023 02:50:31 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1784076392884348340 X-GMAIL-MSGID: 1784076392884348340 |
Series |
vdpa/mlx5: Add support for resumable vqs
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Commit Message
Dragos Tatulea
Dec. 1, 2023, 10:48 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>
---
drivers/vdpa/mlx5/net/mlx5_vnet.c | 8 ++++++++
include/linux/mlx5/mlx5_ifc_vdpa.h | 2 ++
2 files changed, 10 insertions(+)
Comments
On Fri, Dec 1, 2023 at 11:50 AM Dragos Tatulea <dtatulea@nvidia.com> wrote: > > .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> Acked-by: Eugenio Pérez <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 2277daf4814f..6325aef045e2 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, > }; > > -- > 2.42.0 >
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index 2277daf4814f..6325aef045e2 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, };