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net/mlx5: Prevent warns in dmesg upon firmware commands

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When DEVX is used application builds by itself the command mail box,
this patch prevents warns upon firmware commands as of invalid user
space usage.

In addition,
A failure in destroy_mkey command was changed to be printed only under
debug mode.

This prevents a redundant warn when a memory window was used
with rereg_mr and finally was some kernel cleanup as of reset
flow/process termination.

In that case this command might temporarily fails as part of the cleanup
but finally it expects to succeed.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
This commit is contained in:
Yishai Hadas 2018-05-13 13:21:40 +03:00 committed by Leon Romanovsky
parent ce397d215c
commit fc6c391a7a
1 changed files with 13 additions and 2 deletions
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15
drivers/net/ethernet/mellanox/mlx5/core/cmd.c
View file

@ -677,7 +677,7 @@ struct mlx5_ifc_mbox_out_bits {
struct mlx5_ifc_mbox_in_bits {
u8 opcode[0x10];
u8 reserved_at_10[0x10];
u8 uid[0x10];
u8 reserved_at_20[0x10];
u8 op_mod[0x10];
@ -697,6 +697,7 @@ static int mlx5_cmd_check(struct mlx5_core_dev *dev, void *in, void *out)
u8 status;
u16 opcode;
u16 op_mod;
u16 uid;
mlx5_cmd_mbox_status(out, &status, &syndrome);
if (!status)
@ -704,8 +705,18 @@ static int mlx5_cmd_check(struct mlx5_core_dev *dev, void *in, void *out)
opcode = MLX5_GET(mbox_in, in, opcode);
op_mod = MLX5_GET(mbox_in, in, op_mod);
uid = MLX5_GET(mbox_in, in, uid);
mlx5_core_err(dev,
if (!uid && opcode != MLX5_CMD_OP_DESTROY_MKEY)
mlx5_core_err(dev,
"%s(0x%x) op_mod(0x%x) failed, status %s(0x%x), syndrome (0x%x)\n",
mlx5_command_str(opcode),
opcode, op_mod,
cmd_status_str(status),
status,
syndrome);
else
mlx5_core_dbg(dev,
"%s(0x%x) op_mod(0x%x) failed, status %s(0x%x), syndrome (0x%x)\n",
mlx5_command_str(opcode),
opcode, op_mod,