From: Dragos Tatulea <dtatulea@nvidia.com>
To: <eperezma@redhat.com>, <gal@nvidia.com>,
"Michael S . Tsirkin" <mst@redhat.com>,
Jason Wang <jasowang@redhat.com>,
Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Cc: <virtualization@lists.linux-foundation.org>,
Dragos Tatulea <dtatulea@nvidia.com>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH vhost 10/16] vdpa/mlx5: Allow creation/deletion of any given mr struct
Date: Thu, 28 Sep 2023 19:45:21 +0300 [thread overview]
Message-ID: <20230928164550.980832-12-dtatulea@nvidia.com> (raw)
In-Reply-To: <20230928164550.980832-2-dtatulea@nvidia.com>
This patch adapts the mr creation/deletion code to be able to work with
any given mr struct pointer. All the APIs are adapted to take an extra
parameter for the mr.
mlx5_vdpa_create/delete_mr doesn't need a ASID parameter anymore. The
check is done in the caller instead (mlx5_set_map).
This change is needed for a followup patch which will introduce an
additional mr for the vq descriptor data.
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
---
drivers/vdpa/mlx5/core/mlx5_vdpa.h | 8 +++--
drivers/vdpa/mlx5/core/mr.c | 53 ++++++++++++++----------------
drivers/vdpa/mlx5/net/mlx5_vnet.c | 10 ++++--
3 files changed, 36 insertions(+), 35 deletions(-)
diff --git a/drivers/vdpa/mlx5/core/mlx5_vdpa.h b/drivers/vdpa/mlx5/core/mlx5_vdpa.h
index e1e6e7aba50e..01d4ee58ccb1 100644
--- a/drivers/vdpa/mlx5/core/mlx5_vdpa.h
+++ b/drivers/vdpa/mlx5/core/mlx5_vdpa.h
@@ -116,10 +116,12 @@ int mlx5_vdpa_create_mkey(struct mlx5_vdpa_dev *mvdev, u32 *mkey, u32 *in,
int mlx5_vdpa_destroy_mkey(struct mlx5_vdpa_dev *mvdev, u32 mkey);
int mlx5_vdpa_handle_set_map(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb,
bool *change_map, unsigned int asid);
-int mlx5_vdpa_create_mr(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb,
- unsigned int asid);
+int mlx5_vdpa_create_mr(struct mlx5_vdpa_dev *mvdev,
+ struct mlx5_vdpa_mr *mr,
+ struct vhost_iotlb *iotlb);
void mlx5_vdpa_destroy_mr_resources(struct mlx5_vdpa_dev *mvdev);
-void mlx5_vdpa_destroy_mr(struct mlx5_vdpa_dev *mvdev, unsigned int asid);
+void mlx5_vdpa_destroy_mr(struct mlx5_vdpa_dev *mvdev,
+ struct mlx5_vdpa_mr *mr);
int mlx5_vdpa_update_cvq_iotlb(struct mlx5_vdpa_dev *mvdev,
struct vhost_iotlb *iotlb,
unsigned int asid);
diff --git a/drivers/vdpa/mlx5/core/mr.c b/drivers/vdpa/mlx5/core/mr.c
index 00dcce190a1f..6f29e8eaabb1 100644
--- a/drivers/vdpa/mlx5/core/mr.c
+++ b/drivers/vdpa/mlx5/core/mr.c
@@ -301,10 +301,13 @@ static void unmap_direct_mr(struct mlx5_vdpa_dev *mvdev, struct mlx5_vdpa_direct
sg_free_table(&mr->sg_head);
}
-static int add_direct_chain(struct mlx5_vdpa_dev *mvdev, u64 start, u64 size, u8 perm,
+static int add_direct_chain(struct mlx5_vdpa_dev *mvdev,
+ struct mlx5_vdpa_mr *mr,
+ u64 start,
+ u64 size,
+ u8 perm,
struct vhost_iotlb *iotlb)
{
- struct mlx5_vdpa_mr *mr = &mvdev->mr;
struct mlx5_vdpa_direct_mr *dmr;
struct mlx5_vdpa_direct_mr *n;
LIST_HEAD(tmp);
@@ -354,9 +357,10 @@ static int add_direct_chain(struct mlx5_vdpa_dev *mvdev, u64 start, u64 size, u8
* indirect memory key that provides access to the enitre address space given
* by iotlb.
*/
-static int create_user_mr(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb)
+static int create_user_mr(struct mlx5_vdpa_dev *mvdev,
+ struct mlx5_vdpa_mr *mr,
+ struct vhost_iotlb *iotlb)
{
- struct mlx5_vdpa_mr *mr = &mvdev->mr;
struct mlx5_vdpa_direct_mr *dmr;
struct mlx5_vdpa_direct_mr *n;
struct vhost_iotlb_map *map;
@@ -384,7 +388,7 @@ static int create_user_mr(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb
LOG_MAX_KLM_SIZE);
mr->num_klms += nnuls;
}
- err = add_direct_chain(mvdev, ps, pe - ps, pperm, iotlb);
+ err = add_direct_chain(mvdev, mr, ps, pe - ps, pperm, iotlb);
if (err)
goto err_chain;
}
@@ -393,7 +397,7 @@ static int create_user_mr(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb
pperm = map->perm;
}
}
- err = add_direct_chain(mvdev, ps, pe - ps, pperm, iotlb);
+ err = add_direct_chain(mvdev, mr, ps, pe - ps, pperm, iotlb);
if (err)
goto err_chain;
@@ -489,13 +493,8 @@ static void destroy_user_mr(struct mlx5_vdpa_dev *mvdev, struct mlx5_vdpa_mr *mr
}
}
-static void _mlx5_vdpa_destroy_mr(struct mlx5_vdpa_dev *mvdev, unsigned int asid)
+static void _mlx5_vdpa_destroy_mr(struct mlx5_vdpa_dev *mvdev, struct mlx5_vdpa_mr *mr)
{
- struct mlx5_vdpa_mr *mr = &mvdev->mr;
-
- if (mvdev->group2asid[MLX5_VDPA_DATAVQ_GROUP] != asid)
- return;
-
if (!mr->initialized)
return;
@@ -507,38 +506,33 @@ static void _mlx5_vdpa_destroy_mr(struct mlx5_vdpa_dev *mvdev, unsigned int asid
mr->initialized = false;
}
-void mlx5_vdpa_destroy_mr(struct mlx5_vdpa_dev *mvdev, unsigned int asid)
+void mlx5_vdpa_destroy_mr(struct mlx5_vdpa_dev *mvdev,
+ struct mlx5_vdpa_mr *mr)
{
- struct mlx5_vdpa_mr *mr = &mvdev->mr;
-
mutex_lock(&mr->mkey_mtx);
- _mlx5_vdpa_destroy_mr(mvdev, asid);
+ _mlx5_vdpa_destroy_mr(mvdev, mr);
mutex_unlock(&mr->mkey_mtx);
}
void mlx5_vdpa_destroy_mr_resources(struct mlx5_vdpa_dev *mvdev)
{
- mlx5_vdpa_destroy_mr(mvdev, mvdev->group2asid[MLX5_VDPA_DATAVQ_GROUP]);
+ mlx5_vdpa_destroy_mr(mvdev, &mvdev->mr);
prune_iotlb(mvdev);
}
static int _mlx5_vdpa_create_mr(struct mlx5_vdpa_dev *mvdev,
- struct vhost_iotlb *iotlb,
- unsigned int asid)
+ struct mlx5_vdpa_mr *mr,
+ struct vhost_iotlb *iotlb)
{
- struct mlx5_vdpa_mr *mr = &mvdev->mr;
int err;
- if (mvdev->group2asid[MLX5_VDPA_DATAVQ_GROUP] != asid)
- return 0;
-
if (mr->initialized)
return 0;
if (iotlb)
- err = create_user_mr(mvdev, iotlb);
+ err = create_user_mr(mvdev, mr, iotlb);
else
err = create_dma_mr(mvdev, mr);
@@ -550,13 +544,14 @@ static int _mlx5_vdpa_create_mr(struct mlx5_vdpa_dev *mvdev,
return 0;
}
-int mlx5_vdpa_create_mr(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb,
- unsigned int asid)
+int mlx5_vdpa_create_mr(struct mlx5_vdpa_dev *mvdev,
+ struct mlx5_vdpa_mr *mr,
+ struct vhost_iotlb *iotlb)
{
int err;
mutex_lock(&mvdev->mr.mkey_mtx);
- err = _mlx5_vdpa_create_mr(mvdev, iotlb, asid);
+ err = _mlx5_vdpa_create_mr(mvdev, mr, iotlb);
mutex_unlock(&mvdev->mr.mkey_mtx);
return err;
}
@@ -574,7 +569,7 @@ int mlx5_vdpa_handle_set_map(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *io
*change_map = true;
}
if (!*change_map)
- err = _mlx5_vdpa_create_mr(mvdev, iotlb, asid);
+ err = _mlx5_vdpa_create_mr(mvdev, mr, iotlb);
mutex_unlock(&mr->mkey_mtx);
return err;
@@ -603,7 +598,7 @@ int mlx5_vdpa_create_dma_mr(struct mlx5_vdpa_dev *mvdev)
{
int err;
- err = mlx5_vdpa_create_mr(mvdev, NULL, 0);
+ err = mlx5_vdpa_create_mr(mvdev, &mvdev->mr, NULL);
if (err)
return err;
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index ab196c43694c..256fdd80c321 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -2644,8 +2644,8 @@ static int mlx5_vdpa_change_map(struct mlx5_vdpa_dev *mvdev,
goto err_mr;
teardown_driver(ndev);
- mlx5_vdpa_destroy_mr(mvdev, asid);
- err = mlx5_vdpa_create_mr(mvdev, iotlb, asid);
+ mlx5_vdpa_destroy_mr(mvdev, &mvdev->mr);
+ err = mlx5_vdpa_create_mr(mvdev, &mvdev->mr, iotlb);
if (err)
goto err_mr;
@@ -2660,7 +2660,7 @@ static int mlx5_vdpa_change_map(struct mlx5_vdpa_dev *mvdev,
return 0;
err_setup:
- mlx5_vdpa_destroy_mr(mvdev, asid);
+ mlx5_vdpa_destroy_mr(mvdev, &mvdev->mr);
err_mr:
return err;
}
@@ -2878,6 +2878,9 @@ static int set_map_data(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb,
bool change_map;
int err;
+ if (mvdev->group2asid[MLX5_VDPA_DATAVQ_GROUP] != asid)
+ goto end;
+
err = mlx5_vdpa_handle_set_map(mvdev, iotlb, &change_map, asid);
if (err) {
mlx5_vdpa_warn(mvdev, "set map failed(%d)\n", err);
@@ -2890,6 +2893,7 @@ static int set_map_data(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb,
return err;
}
+end:
return mlx5_vdpa_update_cvq_iotlb(mvdev, iotlb, asid);
}
--
2.41.0
next prev parent reply other threads:[~2023-09-28 16:50 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-28 16:45 [PATCH vhost v2 00/16] vdpa: Add support for vq descriptor mappings Dragos Tatulea
2023-09-28 16:45 ` [PATCH mlx5-next 01/16] vdpa/mlx5: Expose descriptor group mkey hw capability Dragos Tatulea
2023-09-28 16:45 ` [PATCH vhost 02/16] vdpa: introduce dedicated descriptor group for virtqueue Dragos Tatulea
2023-09-28 16:45 ` [PATCH vhost 03/16] vhost-vdpa: introduce descriptor group backend feature Dragos Tatulea
2023-09-28 16:45 ` [PATCH vhost 04/16] vhost-vdpa: uAPI to get dedicated descriptor group id Dragos Tatulea
2023-09-28 16:45 ` [PATCH vhost 05/16] vdpa/mlx5: Create helper function for dma mappings Dragos Tatulea
2023-09-28 16:45 ` [PATCH vhost 06/16] vdpa/mlx5: Decouple cvq iotlb handling from hw mapping code Dragos Tatulea
2023-10-04 18:39 ` Eugenio Perez Martin
2023-09-28 16:45 ` [PATCH vhost 07/16] vdpa/mlx5: Take cvq iotlb lock during refresh Dragos Tatulea
2023-10-04 18:40 ` Eugenio Perez Martin
2023-09-28 16:45 ` [PATCH vhost 08/16] vdpa/mlx5: Collapse "dvq" mr add/delete functions Dragos Tatulea
2023-10-04 18:41 ` Eugenio Perez Martin
2023-09-28 16:45 ` [PATCH vhost 09/16] vdpa/mlx5: Rename mr destroy functions Dragos Tatulea
2023-10-04 18:41 ` Eugenio Perez Martin
2023-09-28 16:45 ` Dragos Tatulea [this message]
2023-10-03 8:11 ` [PATCH vhost 10/16] vdpa/mlx5: Allow creation/deletion of any given mr struct Dragos Tatulea
2023-10-04 18:45 ` Eugenio Perez Martin
2023-09-28 16:45 ` [PATCH vhost 11/16] vdpa/mlx5: Move mr mutex out of " Dragos Tatulea
2023-10-04 18:46 ` Eugenio Perez Martin
2023-09-28 16:45 ` [PATCH vhost 12/16] vdpa/mlx5: Improve mr update flow Dragos Tatulea
2023-09-28 16:45 ` [PATCH vhost 13/16] vdpa/mlx5: Introduce mr for vq descriptor Dragos Tatulea
2023-10-04 18:53 ` Eugenio Perez Martin
2023-10-05 12:09 ` Dragos Tatulea
2023-09-28 16:45 ` [PATCH vhost 14/16] vdpa/mlx5: Enable hw support for vq descriptor mapping Dragos Tatulea
2023-10-05 9:42 ` Eugenio Perez Martin
2023-10-05 12:16 ` Dragos Tatulea
2023-10-05 14:48 ` Eugenio Perez Martin
2023-09-28 16:45 ` [PATCH vhost 15/16] vdpa/mlx5: Make iotlb helper functions more generic Dragos Tatulea
2023-10-05 10:14 ` Eugenio Perez Martin
2023-10-05 12:16 ` Dragos Tatulea
2023-09-28 16:45 ` [PATCH vhost 16/16] vdpa/mlx5: Update cvq iotlb mapping on ASID change Dragos Tatulea
2023-10-05 10:41 ` Eugenio Perez Martin
2023-10-05 13:12 ` Dragos Tatulea
2023-10-05 14:18 ` Eugenio Perez Martin
2023-10-02 10:16 ` [PATCH vhost v2 00/16] vdpa: Add support for vq descriptor mappings Leon Romanovsky
2023-10-02 10:16 ` (subset) " Leon Romanovsky
2023-10-05 17:31 ` Michael S. Tsirkin
2023-10-05 17:44 ` Dragos Tatulea
2023-10-05 19:18 ` Michael S. Tsirkin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230928164550.980832-12-dtatulea@nvidia.com \
--to=dtatulea@nvidia.com \
--cc=eperezma@redhat.com \
--cc=gal@nvidia.com \
--cc=jasowang@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mst@redhat.com \
--cc=virtualization@lists.linux-foundation.org \
--cc=xuanzhuo@linux.alibaba.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®