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Wed, 21 Aug 2024 04:41:39 -0700 From: Dragos Tatulea To: "Michael S . Tsirkin" , Jason Wang , Eugenio Perez Martin , Si-Wei Liu , , "Gal Pressman" CC: Dragos Tatulea , , , Parav Pandit , Xuan Zhuo , Cosmin Ratiu Subject: [PATCH vhost 4/7] vdpa/mlx5: Extract mr members in own resource struct Date: Wed, 21 Aug 2024 14:40:58 +0300 Message-ID: <20240821114100.2261167-6-dtatulea@nvidia.com> X-Mailer: git-send-email 2.45.1 In-Reply-To: <20240821114100.2261167-2-dtatulea@nvidia.com> References: <20240821114100.2261167-2-dtatulea@nvidia.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN3PEPF0000B373:EE_|LV3PR12MB9353:EE_ X-MS-Office365-Filtering-Correlation-Id: 0a47666d-1f04-40fc-043a-08dcc1d64409 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|1800799024|36860700013|82310400026; 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:(13230040)(376014)(1800799024)(36860700013)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Aug 2024 11:41:58.6340 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 0a47666d-1f04-40fc-043a-08dcc1d64409 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: BN3PEPF0000B373.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV3PR12MB9353 Group all mapping related resources into their own structure. Upcoming patches will add more members in this new structure. Signed-off-by: Dragos Tatulea Reviewed-by: Cosmin Ratiu Acked-by: Eugenio Pérez --- drivers/vdpa/mlx5/core/mlx5_vdpa.h | 13 ++++++----- drivers/vdpa/mlx5/core/mr.c | 30 ++++++++++++------------- drivers/vdpa/mlx5/core/resources.c | 6 ++--- drivers/vdpa/mlx5/net/mlx5_vnet.c | 36 +++++++++++++++--------------- 4 files changed, 44 insertions(+), 41 deletions(-) diff --git a/drivers/vdpa/mlx5/core/mlx5_vdpa.h b/drivers/vdpa/mlx5/core/mlx5_vdpa.h index 4d217d18239c..5ae6deea2a8a 100644 --- a/drivers/vdpa/mlx5/core/mlx5_vdpa.h +++ b/drivers/vdpa/mlx5/core/mlx5_vdpa.h @@ -83,10 +83,18 @@ enum { MLX5_VDPA_NUM_AS = 2 }; +struct mlx5_vdpa_mr_resources { + struct mlx5_vdpa_mr *mr[MLX5_VDPA_NUM_AS]; + unsigned int group2asid[MLX5_VDPA_NUMVQ_GROUPS]; + struct list_head mr_list_head; + struct mutex mr_mtx; +}; + struct mlx5_vdpa_dev { struct vdpa_device vdev; struct mlx5_core_dev *mdev; struct mlx5_vdpa_resources res; + struct mlx5_vdpa_mr_resources mres; u64 mlx_features; u64 actual_features; @@ -95,13 +103,8 @@ struct mlx5_vdpa_dev { u16 max_idx; u32 generation; - struct mlx5_vdpa_mr *mr[MLX5_VDPA_NUM_AS]; - struct list_head mr_list_head; - /* serialize mr access */ - struct mutex mr_mtx; struct mlx5_control_vq cvq; struct workqueue_struct *wq; - unsigned int group2asid[MLX5_VDPA_NUMVQ_GROUPS]; bool suspended; struct mlx5_async_ctx async_ctx; diff --git a/drivers/vdpa/mlx5/core/mr.c b/drivers/vdpa/mlx5/core/mr.c index 149edea09c8f..2c8660e5c0de 100644 --- a/drivers/vdpa/mlx5/core/mr.c +++ b/drivers/vdpa/mlx5/core/mr.c @@ -666,9 +666,9 @@ static void _mlx5_vdpa_put_mr(struct mlx5_vdpa_dev *mvdev, void mlx5_vdpa_put_mr(struct mlx5_vdpa_dev *mvdev, struct mlx5_vdpa_mr *mr) { - mutex_lock(&mvdev->mr_mtx); + mutex_lock(&mvdev->mres.mr_mtx); _mlx5_vdpa_put_mr(mvdev, mr); - mutex_unlock(&mvdev->mr_mtx); + mutex_unlock(&mvdev->mres.mr_mtx); } static void _mlx5_vdpa_get_mr(struct mlx5_vdpa_dev *mvdev, @@ -683,39 +683,39 @@ static void _mlx5_vdpa_get_mr(struct mlx5_vdpa_dev *mvdev, void mlx5_vdpa_get_mr(struct mlx5_vdpa_dev *mvdev, struct mlx5_vdpa_mr *mr) { - mutex_lock(&mvdev->mr_mtx); + mutex_lock(&mvdev->mres.mr_mtx); _mlx5_vdpa_get_mr(mvdev, mr); - mutex_unlock(&mvdev->mr_mtx); + mutex_unlock(&mvdev->mres.mr_mtx); } void mlx5_vdpa_update_mr(struct mlx5_vdpa_dev *mvdev, struct mlx5_vdpa_mr *new_mr, unsigned int asid) { - struct mlx5_vdpa_mr *old_mr = mvdev->mr[asid]; + struct mlx5_vdpa_mr *old_mr = mvdev->mres.mr[asid]; - mutex_lock(&mvdev->mr_mtx); + mutex_lock(&mvdev->mres.mr_mtx); _mlx5_vdpa_put_mr(mvdev, old_mr); - mvdev->mr[asid] = new_mr; + mvdev->mres.mr[asid] = new_mr; - mutex_unlock(&mvdev->mr_mtx); + mutex_unlock(&mvdev->mres.mr_mtx); } static void mlx5_vdpa_show_mr_leaks(struct mlx5_vdpa_dev *mvdev) { struct mlx5_vdpa_mr *mr; - mutex_lock(&mvdev->mr_mtx); + mutex_lock(&mvdev->mres.mr_mtx); - list_for_each_entry(mr, &mvdev->mr_list_head, mr_list) { + list_for_each_entry(mr, &mvdev->mres.mr_list_head, mr_list) { mlx5_vdpa_warn(mvdev, "mkey still alive after resource delete: " "mr: %p, mkey: 0x%x, refcount: %u\n", mr, mr->mkey, refcount_read(&mr->refcount)); } - mutex_unlock(&mvdev->mr_mtx); + mutex_unlock(&mvdev->mres.mr_mtx); } @@ -753,7 +753,7 @@ static int _mlx5_vdpa_create_mr(struct mlx5_vdpa_dev *mvdev, if (err) goto err_iotlb; - list_add_tail(&mr->mr_list, &mvdev->mr_list_head); + list_add_tail(&mr->mr_list, &mvdev->mres.mr_list_head); return 0; @@ -779,9 +779,9 @@ struct mlx5_vdpa_mr *mlx5_vdpa_create_mr(struct mlx5_vdpa_dev *mvdev, if (!mr) return ERR_PTR(-ENOMEM); - mutex_lock(&mvdev->mr_mtx); + mutex_lock(&mvdev->mres.mr_mtx); err = _mlx5_vdpa_create_mr(mvdev, mr, iotlb); - mutex_unlock(&mvdev->mr_mtx); + mutex_unlock(&mvdev->mres.mr_mtx); if (err) goto out_err; @@ -801,7 +801,7 @@ int mlx5_vdpa_update_cvq_iotlb(struct mlx5_vdpa_dev *mvdev, { int err; - if (mvdev->group2asid[MLX5_VDPA_CVQ_GROUP] != asid) + if (mvdev->mres.group2asid[MLX5_VDPA_CVQ_GROUP] != asid) return 0; spin_lock(&mvdev->cvq.iommu_lock); diff --git a/drivers/vdpa/mlx5/core/resources.c b/drivers/vdpa/mlx5/core/resources.c index 22ea32fe007b..3e3b3049cb08 100644 --- a/drivers/vdpa/mlx5/core/resources.c +++ b/drivers/vdpa/mlx5/core/resources.c @@ -256,7 +256,7 @@ int mlx5_vdpa_alloc_resources(struct mlx5_vdpa_dev *mvdev) mlx5_vdpa_warn(mvdev, "resources already allocated\n"); return -EINVAL; } - mutex_init(&mvdev->mr_mtx); + mutex_init(&mvdev->mres.mr_mtx); res->uar = mlx5_get_uars_page(mdev); if (IS_ERR(res->uar)) { err = PTR_ERR(res->uar); @@ -301,7 +301,7 @@ int mlx5_vdpa_alloc_resources(struct mlx5_vdpa_dev *mvdev) err_uctx: mlx5_put_uars_page(mdev, res->uar); err_uars: - mutex_destroy(&mvdev->mr_mtx); + mutex_destroy(&mvdev->mres.mr_mtx); return err; } @@ -318,7 +318,7 @@ void mlx5_vdpa_free_resources(struct mlx5_vdpa_dev *mvdev) dealloc_pd(mvdev, res->pdn, res->uid); destroy_uctx(mvdev, res->uid); mlx5_put_uars_page(mvdev->mdev, res->uar); - mutex_destroy(&mvdev->mr_mtx); + mutex_destroy(&mvdev->mres.mr_mtx); res->valid = false; } diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index cf2b77ebc72b..3e55a7f1afcd 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c @@ -941,11 +941,11 @@ static int create_virtqueue(struct mlx5_vdpa_net *ndev, MLX5_SET64(virtio_q, vq_ctx, used_addr, mvq->device_addr); MLX5_SET64(virtio_q, vq_ctx, available_addr, mvq->driver_addr); - vq_mr = mvdev->mr[mvdev->group2asid[MLX5_VDPA_DATAVQ_GROUP]]; + vq_mr = mvdev->mres.mr[mvdev->mres.group2asid[MLX5_VDPA_DATAVQ_GROUP]]; if (vq_mr) MLX5_SET(virtio_q, vq_ctx, virtio_q_mkey, vq_mr->mkey); - vq_desc_mr = mvdev->mr[mvdev->group2asid[MLX5_VDPA_DATAVQ_DESC_GROUP]]; + vq_desc_mr = mvdev->mres.mr[mvdev->mres.group2asid[MLX5_VDPA_DATAVQ_DESC_GROUP]]; if (vq_desc_mr && MLX5_CAP_DEV_VDPA_EMULATION(mvdev->mdev, desc_group_mkey_supported)) MLX5_SET(virtio_q, vq_ctx, desc_group_mkey, vq_desc_mr->mkey); @@ -953,11 +953,11 @@ static int create_virtqueue(struct mlx5_vdpa_net *ndev, /* If there is no mr update, make sure that the existing ones are set * modify to ready. */ - vq_mr = mvdev->mr[mvdev->group2asid[MLX5_VDPA_DATAVQ_GROUP]]; + vq_mr = mvdev->mres.mr[mvdev->mres.group2asid[MLX5_VDPA_DATAVQ_GROUP]]; if (vq_mr) mvq->modified_fields |= MLX5_VIRTQ_MODIFY_MASK_VIRTIO_Q_MKEY; - vq_desc_mr = mvdev->mr[mvdev->group2asid[MLX5_VDPA_DATAVQ_DESC_GROUP]]; + vq_desc_mr = mvdev->mres.mr[mvdev->mres.group2asid[MLX5_VDPA_DATAVQ_DESC_GROUP]]; if (vq_desc_mr) mvq->modified_fields |= MLX5_VIRTQ_MODIFY_MASK_DESC_GROUP_MKEY; } @@ -1354,7 +1354,7 @@ static void fill_modify_virtqueue_cmd(struct mlx5_vdpa_net *ndev, } if (mvq->modified_fields & MLX5_VIRTQ_MODIFY_MASK_VIRTIO_Q_MKEY) { - vq_mr = mvdev->mr[mvdev->group2asid[MLX5_VDPA_DATAVQ_GROUP]]; + vq_mr = mvdev->mres.mr[mvdev->mres.group2asid[MLX5_VDPA_DATAVQ_GROUP]]; if (vq_mr) MLX5_SET(virtio_q, vq_ctx, virtio_q_mkey, vq_mr->mkey); @@ -1363,7 +1363,7 @@ static void fill_modify_virtqueue_cmd(struct mlx5_vdpa_net *ndev, } if (mvq->modified_fields & MLX5_VIRTQ_MODIFY_MASK_DESC_GROUP_MKEY) { - desc_mr = mvdev->mr[mvdev->group2asid[MLX5_VDPA_DATAVQ_DESC_GROUP]]; + desc_mr = mvdev->mres.mr[mvdev->mres.group2asid[MLX5_VDPA_DATAVQ_DESC_GROUP]]; if (desc_mr && MLX5_CAP_DEV_VDPA_EMULATION(mvdev->mdev, desc_group_mkey_supported)) MLX5_SET(virtio_q, vq_ctx, desc_group_mkey, desc_mr->mkey); @@ -1381,8 +1381,8 @@ static void modify_virtqueue_end(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_dev *mvdev = &ndev->mvdev; if (mvq->modified_fields & MLX5_VIRTQ_MODIFY_MASK_VIRTIO_Q_MKEY) { - unsigned int asid = mvdev->group2asid[MLX5_VDPA_DATAVQ_GROUP]; - struct mlx5_vdpa_mr *vq_mr = mvdev->mr[asid]; + unsigned int asid = mvdev->mres.group2asid[MLX5_VDPA_DATAVQ_GROUP]; + struct mlx5_vdpa_mr *vq_mr = mvdev->mres.mr[asid]; mlx5_vdpa_put_mr(mvdev, mvq->vq_mr); mlx5_vdpa_get_mr(mvdev, vq_mr); @@ -1390,8 +1390,8 @@ static void modify_virtqueue_end(struct mlx5_vdpa_net *ndev, } if (mvq->modified_fields & MLX5_VIRTQ_MODIFY_MASK_DESC_GROUP_MKEY) { - unsigned int asid = mvdev->group2asid[MLX5_VDPA_DATAVQ_DESC_GROUP]; - struct mlx5_vdpa_mr *desc_mr = mvdev->mr[asid]; + unsigned int asid = mvdev->mres.group2asid[MLX5_VDPA_DATAVQ_DESC_GROUP]; + struct mlx5_vdpa_mr *desc_mr = mvdev->mres.mr[asid]; mlx5_vdpa_put_mr(mvdev, mvq->desc_mr); mlx5_vdpa_get_mr(mvdev, desc_mr); @@ -3235,7 +3235,7 @@ static void init_group_to_asid_map(struct mlx5_vdpa_dev *mvdev) /* default mapping all groups are mapped to asid 0 */ for (i = 0; i < MLX5_VDPA_NUMVQ_GROUPS; i++) - mvdev->group2asid[i] = 0; + mvdev->mres.group2asid[i] = 0; } static bool needs_vqs_reset(const struct mlx5_vdpa_dev *mvdev) @@ -3353,7 +3353,7 @@ static int set_map_data(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb, new_mr = NULL; } - if (!mvdev->mr[asid]) { + if (!mvdev->mres.mr[asid]) { mlx5_vdpa_update_mr(mvdev, new_mr, asid); } else { err = mlx5_vdpa_change_map(mvdev, new_mr, asid); @@ -3637,12 +3637,12 @@ static int mlx5_set_group_asid(struct vdpa_device *vdev, u32 group, if (group >= MLX5_VDPA_NUMVQ_GROUPS) return -EINVAL; - mvdev->group2asid[group] = asid; + mvdev->mres.group2asid[group] = asid; - mutex_lock(&mvdev->mr_mtx); - if (group == MLX5_VDPA_CVQ_GROUP && mvdev->mr[asid]) - err = mlx5_vdpa_update_cvq_iotlb(mvdev, mvdev->mr[asid]->iotlb, asid); - mutex_unlock(&mvdev->mr_mtx); + mutex_lock(&mvdev->mres.mr_mtx); + if (group == MLX5_VDPA_CVQ_GROUP && mvdev->mres.mr[asid]) + err = mlx5_vdpa_update_cvq_iotlb(mvdev, mvdev->mres.mr[asid]->iotlb, asid); + mutex_unlock(&mvdev->mres.mr_mtx); return err; } @@ -3962,7 +3962,7 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name, if (err) goto err_mpfs; - INIT_LIST_HEAD(&mvdev->mr_list_head); + INIT_LIST_HEAD(&mvdev->mres.mr_list_head); if (MLX5_CAP_GEN(mvdev->mdev, umem_uid_0)) { err = mlx5_vdpa_create_dma_mr(mvdev);