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authorJason Gunthorpe <jgg@mellanox.com>2018-07-10 20:55:22 -0600
committerJason Gunthorpe <jgg@mellanox.com>2018-07-25 14:21:22 -0600
commitc36ee46dafaea1bb525c4e34d3e35dd9a6768a47 (patch)
tree7f58f94ad65046eb974c2bfdf27e23f478f75b4b /drivers
parentIB/uverbs: Move the FD uobj type struct file allocation to alloc_commit (diff)
downloadlinux-dev-c36ee46dafaea1bb525c4e34d3e35dd9a6768a47.tar.xz
linux-dev-c36ee46dafaea1bb525c4e34d3e35dd9a6768a47.zip
IB/mlx5: Use the ucontext from the uobj, not the file
This approach matches the standard flow of the typical write method that relies on the HW object to store the device and the uobject to access the ucontext. Avoids the use of the devx_ufile2uctx in several places will make revising the semantics of ib_uverbs_get_ucontext() in the next patch simpler. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/infiniband/hw/mlx5/devx.c32
1 files changed, 16 insertions, 16 deletions
diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c
index 270452c9e673..98b1575226c1 100644
--- a/drivers/infiniband/hw/mlx5/devx.c
+++ b/drivers/infiniband/hw/mlx5/devx.c
@@ -706,13 +706,14 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)(struct ib_device *ib_d
struct ib_uverbs_file *file,
struct uverbs_attr_bundle *attrs)
{
- struct mlx5_ib_ucontext *c = devx_ufile2uctx(file);
- struct mlx5_ib_dev *dev = to_mdev(ib_dev);
void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN);
int cmd_out_len = uverbs_attr_get_len(attrs,
MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT);
void *cmd_out;
- struct ib_uobject *uobj;
+ struct ib_uobject *uobj = uverbs_attr_get_uobject(
+ attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE);
+ struct mlx5_ib_ucontext *c = to_mucontext(uobj->context);
+ struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device);
struct devx_obj *obj;
int err;
@@ -739,7 +740,6 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)(struct ib_device *ib_d
if (err)
goto cmd_free;
- uobj = uverbs_attr_get_uobject(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE);
uobj->object = obj;
obj->mdev = dev->mdev;
devx_obj_build_destroy_cmd(cmd_in, cmd_out, obj->dinbox, &obj->dinlen, &obj->obj_id);
@@ -763,13 +763,13 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_MODIFY)(struct ib_device *ib_d
struct ib_uverbs_file *file,
struct uverbs_attr_bundle *attrs)
{
- struct mlx5_ib_ucontext *c = devx_ufile2uctx(file);
- struct mlx5_ib_dev *dev = to_mdev(ib_dev);
void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN);
int cmd_out_len = uverbs_attr_get_len(attrs,
MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT);
struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs,
MLX5_IB_ATTR_DEVX_OBJ_MODIFY_HANDLE);
+ struct mlx5_ib_ucontext *c = to_mucontext(uobj->context);
+ struct devx_obj *obj = uobj->object;
void *cmd_out;
int err;
@@ -779,7 +779,7 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_MODIFY)(struct ib_device *ib_d
if (!devx_is_obj_modify_cmd(cmd_in))
return -EINVAL;
- if (!devx_is_valid_obj_id(uobj->object, cmd_in))
+ if (!devx_is_valid_obj_id(obj, cmd_in))
return -EINVAL;
cmd_out = kvzalloc(cmd_out_len, GFP_KERNEL);
@@ -787,7 +787,7 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_MODIFY)(struct ib_device *ib_d
return -ENOMEM;
MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, c->devx_uid);
- err = mlx5_cmd_exec(dev->mdev, cmd_in,
+ err = mlx5_cmd_exec(obj->mdev, cmd_in,
uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN),
cmd_out, cmd_out_len);
if (err)
@@ -805,13 +805,13 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_QUERY)(struct ib_device *ib_de
struct ib_uverbs_file *file,
struct uverbs_attr_bundle *attrs)
{
- struct mlx5_ib_ucontext *c = devx_ufile2uctx(file);
- struct mlx5_ib_dev *dev = to_mdev(ib_dev);
void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN);
int cmd_out_len = uverbs_attr_get_len(attrs,
MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT);
struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs,
MLX5_IB_ATTR_DEVX_OBJ_QUERY_HANDLE);
+ struct mlx5_ib_ucontext *c = to_mucontext(uobj->context);
+ struct devx_obj *obj = uobj->object;
void *cmd_out;
int err;
@@ -821,7 +821,7 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_QUERY)(struct ib_device *ib_de
if (!devx_is_obj_query_cmd(cmd_in))
return -EINVAL;
- if (!devx_is_valid_obj_id(uobj->object, cmd_in))
+ if (!devx_is_valid_obj_id(obj, cmd_in))
return -EINVAL;
cmd_out = kvzalloc(cmd_out_len, GFP_KERNEL);
@@ -829,7 +829,7 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_QUERY)(struct ib_device *ib_de
return -ENOMEM;
MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, c->devx_uid);
- err = mlx5_cmd_exec(dev->mdev, cmd_in,
+ err = mlx5_cmd_exec(obj->mdev, cmd_in,
uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN),
cmd_out, cmd_out_len);
if (err)
@@ -920,18 +920,18 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_UMEM_REG)(struct ib_device *ib_dev
struct ib_uverbs_file *file,
struct uverbs_attr_bundle *attrs)
{
- struct mlx5_ib_ucontext *c = devx_ufile2uctx(file);
- struct mlx5_ib_dev *dev = to_mdev(ib_dev);
struct devx_umem_reg_cmd cmd;
struct devx_umem *obj;
- struct ib_uobject *uobj;
+ struct ib_uobject *uobj = uverbs_attr_get_uobject(
+ attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_HANDLE);
u32 obj_id;
+ struct mlx5_ib_ucontext *c = to_mucontext(uobj->context);
+ struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device);
int err;
if (!c->devx_uid)
return -EPERM;
- uobj = uverbs_attr_get_uobject(attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_HANDLE);
obj = kzalloc(sizeof(struct devx_umem), GFP_KERNEL);
if (!obj)
return -ENOMEM;