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Use mlx5core to create/destroy all Dynamically Connected Targets, DCTs.

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To prevent a hardware memory leak when a DEVX DCT object is destroyed
without calling drain DCT before, (e.g. under cleanup flow), need to
manage its creation and destruction via mlx5 core.

Linux commit:
c5ae1954c47d3fd8815bd5a592aba18702c93f33

MFC after:	1 week
Sponsored by:	Mellanox Technologies // NVIDIA Networking
This commit is contained in:
Hans Petter Selasky 2020-11-16 10:03:18 +00:00
parent 8114aeea44
commit 4a64b690f1
2 changed files with 6 additions and 6 deletions
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9
sys/dev/mlx5/mlx5_core/mlx5_qp.c
View File

@ -349,19 +349,18 @@ EXPORT_SYMBOL_GPL(mlx5_core_xrcd_dealloc);
int mlx5_core_create_dct(struct mlx5_core_dev *dev,
struct mlx5_core_dct *dct,
u32 *in)
u32 *in, int inlen,
u32 *out, int outlen)
{
struct mlx5_qp_table *table = &dev->priv.qp_table;
u32 out[MLX5_ST_SZ_DW(create_dct_out)] = {0};
u32 dout[MLX5_ST_SZ_DW(destroy_dct_out)] = {0};
u32 din[MLX5_ST_SZ_DW(destroy_dct_in)] = {0};
int inlen = MLX5_ST_SZ_BYTES(create_dct_in);
int err;
init_completion(&dct->drained);
MLX5_SET(create_dct_in, in, opcode, MLX5_CMD_OP_CREATE_DCT);
err = mlx5_cmd_exec(dev, in, inlen, &out, sizeof(out));
err = mlx5_cmd_exec(dev, in, inlen, out, outlen);
if (err) {
mlx5_core_warn(dev, "create DCT failed, ret %d", err);
return err;
@ -387,7 +386,7 @@ int mlx5_core_create_dct(struct mlx5_core_dev *dev,
err_cmd:
MLX5_SET(destroy_dct_in, din, opcode, MLX5_CMD_OP_DESTROY_DCT);
MLX5_SET(destroy_dct_in, din, dctn, dct->dctn);
mlx5_cmd_exec(dev, &din, sizeof(din), &out, sizeof(dout));
mlx5_cmd_exec(dev, &din, sizeof(din), dout, sizeof(dout));
return err;
}

3
sys/dev/mlx5/qp.h
View File

@ -586,7 +586,8 @@ int mlx5_core_xrcd_alloc(struct mlx5_core_dev *dev, u32 *xrcdn);
int mlx5_core_xrcd_dealloc(struct mlx5_core_dev *dev, u32 xrcdn);
int mlx5_core_create_dct(struct mlx5_core_dev *dev,
struct mlx5_core_dct *dct,
u32 *in);
u32 *in, int inlen,
u32 *out, int outlen);
int mlx5_core_destroy_dct(struct mlx5_core_dev *dev,
struct mlx5_core_dct *dct);
int mlx5_core_create_rq_tracked(struct mlx5_core_dev *dev, u32 *in, int inlen,