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IB/mlx5: Set uid as part of XRCD commands 

Set uid as part of XRCD commands so that the firmware can manage the
XRCD object in a secured way.

That will enable using an XRCD that was created by verbs application
to be used by the DEVX flow in case the uid is equal.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Yishai Hadas 2018-09-20 21:39:31 +03:00 committed by Jason Gunthorpe
parent cf50a7863b
commit d00614c057
4 changed files with 34 additions and 2 deletions
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25
drivers/infiniband/hw/mlx5/cmd.c
View File

@ -271,3 +271,28 @@ int mlx5_cmd_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid,
memcpy(gid, mgid, sizeof(*mgid));
return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
}
int mlx5_cmd_xrcd_alloc(struct mlx5_core_dev *dev, u32 *xrcdn, u16 uid)
{
u32 out[MLX5_ST_SZ_DW(alloc_xrcd_out)] = {};
u32 in[MLX5_ST_SZ_DW(alloc_xrcd_in)] = {};
int err;
MLX5_SET(alloc_xrcd_in, in, opcode, MLX5_CMD_OP_ALLOC_XRCD);
MLX5_SET(alloc_xrcd_in, in, uid, uid);
err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
if (!err)
*xrcdn = MLX5_GET(alloc_xrcd_out, out, xrcd);
return err;
}
int mlx5_cmd_xrcd_dealloc(struct mlx5_core_dev *dev, u32 xrcdn, u16 uid)
{
u32 out[MLX5_ST_SZ_DW(dealloc_xrcd_out)] = {};
u32 in[MLX5_ST_SZ_DW(dealloc_xrcd_in)] = {};
MLX5_SET(dealloc_xrcd_in, in, opcode, MLX5_CMD_OP_DEALLOC_XRCD);
MLX5_SET(dealloc_xrcd_in, in, xrcd, xrcdn);
MLX5_SET(dealloc_xrcd_in, in, uid, uid);
return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
}

2
drivers/infiniband/hw/mlx5/cmd.h
View File

@ -55,4 +55,6 @@ int mlx5_cmd_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid,
u32 qpn, u16 uid);
int mlx5_cmd_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid,
u32 qpn, u16 uid);
int mlx5_cmd_xrcd_alloc(struct mlx5_core_dev *dev, u32 *xrcdn, u16 uid);
int mlx5_cmd_xrcd_dealloc(struct mlx5_core_dev *dev, u32 xrcdn, u16 uid);
#endif /* MLX5_IB_CMD_H */

1
drivers/infiniband/hw/mlx5/mlx5_ib.h
View File

@ -539,6 +539,7 @@ struct mlx5_ib_srq {
struct mlx5_ib_xrcd {
struct ib_xrcd ibxrcd;
u32 xrcdn;
u16 uid;
};
enum mlx5_ib_mtt_access_flags {

8
drivers/infiniband/hw/mlx5/qp.c
View File

@ -5280,6 +5280,7 @@ struct ib_xrcd *mlx5_ib_alloc_xrcd(struct ib_device *ibdev,
struct mlx5_ib_dev *dev = to_mdev(ibdev);
struct mlx5_ib_xrcd *xrcd;
int err;
u16 uid;
if (!MLX5_CAP_GEN(dev->mdev, xrc))
return ERR_PTR(-ENOSYS);
@ -5288,12 +5289,14 @@ struct ib_xrcd *mlx5_ib_alloc_xrcd(struct ib_device *ibdev,
if (!xrcd)
return ERR_PTR(-ENOMEM);
err = mlx5_core_xrcd_alloc(dev->mdev, &xrcd->xrcdn);
uid = context ? to_mucontext(context)->devx_uid : 0;
err = mlx5_cmd_xrcd_alloc(dev->mdev, &xrcd->xrcdn, uid);
if (err) {
kfree(xrcd);
return ERR_PTR(-ENOMEM);
}
xrcd->uid = uid;
return &xrcd->ibxrcd;
}
@ -5301,9 +5304,10 @@ int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd)
{
struct mlx5_ib_dev *dev = to_mdev(xrcd->device);
u32 xrcdn = to_mxrcd(xrcd)->xrcdn;
u16 uid = to_mxrcd(xrcd)->uid;
int err;
err = mlx5_core_xrcd_dealloc(dev->mdev, xrcdn);
err = mlx5_cmd_xrcd_dealloc(dev->mdev, xrcdn, uid);
if (err)
mlx5_ib_warn(dev, "failed to dealloc xrcdn 0x%x\n", xrcdn);