net/mlx5: Add NOT_READY command return status

Add a new command status MLX5_CMD_STAT_NOT_READY to handle cases
where the firmware is not ready.

Signed-off-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Link: https://patch.msgid.link/20240911201757.1505453-14-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index 20768ef2e9d2b2b48b20ce9a1264a1099b0ac779..9af8ddb4a78ffb44ba42e9ca60483d627bebb82c 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -754,6 +754,8 @@ static const char *cmd_status_str(u8 status)
                return "bad resource";
        case MLX5_CMD_STAT_RES_BUSY:
                return "resource busy";
+       case MLX5_CMD_STAT_NOT_READY:
+               return "FW not ready";
        case MLX5_CMD_STAT_LIM_ERR:
                return "limits exceeded";
        case MLX5_CMD_STAT_BAD_RES_STATE_ERR:
@@ -787,6 +789,7 @@ static int cmd_status_to_err(u8 status)
        case MLX5_CMD_STAT_BAD_SYS_STATE_ERR:           return -EIO;
        case MLX5_CMD_STAT_BAD_RES_ERR:                 return -EINVAL;
        case MLX5_CMD_STAT_RES_BUSY:                    return -EBUSY;
+       case MLX5_CMD_STAT_NOT_READY:                   return -EAGAIN;
        case MLX5_CMD_STAT_LIM_ERR:                     return -ENOMEM;
        case MLX5_CMD_STAT_BAD_RES_STATE_ERR:           return -EINVAL;
        case MLX5_CMD_STAT_IX_ERR:                      return -EINVAL;
@@ -815,14 +818,16 @@ EXPORT_SYMBOL(mlx5_cmd_out_err);
 static void cmd_status_print(struct mlx5_core_dev *dev, void *in, void *out)
 {
        u16 opcode, op_mod;
+       u8 status;
        u16 uid;
 
        opcode = in_to_opcode(in);
        op_mod = MLX5_GET(mbox_in, in, op_mod);
        uid    = MLX5_GET(mbox_in, in, uid);
+       status = MLX5_GET(mbox_out, out, status);
 
        if (!uid && opcode != MLX5_CMD_OP_DESTROY_MKEY &&
-           opcode != MLX5_CMD_OP_CREATE_UCTX)
+           opcode != MLX5_CMD_OP_CREATE_UCTX && status != MLX5_CMD_STAT_NOT_READY)
                mlx5_cmd_out_err(dev, opcode, op_mod, out);
 }
 

diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index a94bc9e3af96be7febbd1a320930e9e873cbf9ba..d0f7d1f36c5e6670ccdb9ad3678e7945f5c2879c 100644 (file)
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -1449,6 +1449,7 @@ enum {
        MLX5_CMD_STAT_BAD_SYS_STATE_ERR         = 0x4,
        MLX5_CMD_STAT_BAD_RES_ERR               = 0x5,
        MLX5_CMD_STAT_RES_BUSY                  = 0x6,
+       MLX5_CMD_STAT_NOT_READY                 = 0x7,
        MLX5_CMD_STAT_LIM_ERR                   = 0x8,
        MLX5_CMD_STAT_BAD_RES_STATE_ERR         = 0x9,
        MLX5_CMD_STAT_IX_ERR                    = 0xa,