net/mlx4_core: Add bad-cable event support

If the firmware can detect a bad cable, allow it to generate an
event, and print the problem in the log.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 13 insertions, 1 deletions

diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 5ef54e145e4d..c95d659a39f2 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -200,7 +200,8 @@ enum {
         MLX4_DEV_CAP_FLAG2_CONFIG_DEV           = 1LL <<  16,
         MLX4_DEV_CAP_FLAG2_SYS_EQS              = 1LL <<  17,
         MLX4_DEV_CAP_FLAG2_80_VFS               = 1LL <<  18,
-        MLX4_DEV_CAP_FLAG2_FS_A0                = 1LL <<  19
+        MLX4_DEV_CAP_FLAG2_FS_A0                = 1LL <<  19,
+        MLX4_DEV_CAP_FLAG2_RECOVERABLE_ERROR_EVENT = 1LL << 20
 };
 
 enum {
@@ -280,6 +281,7 @@ enum mlx4_event {
         MLX4_EVENT_TYPE_FATAL_WARNING      = 0x1b,
         MLX4_EVENT_TYPE_FLR_EVENT          = 0x1c,
         MLX4_EVENT_TYPE_PORT_MNG_CHG_EVENT = 0x1d,
+        MLX4_EVENT_TYPE_RECOVERABLE_ERROR_EVENT  = 0x3e,
         MLX4_EVENT_TYPE_NONE               = 0xff,
 };
 
@@ -289,6 +291,11 @@ enum {
 };
 
 enum {
+        MLX4_RECOVERABLE_ERROR_EVENT_SUBTYPE_BAD_CABLE          = 1,
+        MLX4_RECOVERABLE_ERROR_EVENT_SUBTYPE_UNSUPPORTED_CABLE  = 2,
+};
+
+enum {
         MLX4_FATAL_WARNING_SUBTYPE_WARMING = 0,
 };
 
@@ -860,6 +867,11 @@ struct mlx4_eqe {
                                 } __packed tbl_change_info;
                         } params;
                 } __packed port_mgmt_change;
+                struct {
+                        u8 reserved[3];
+                        u8 port;
+                        u32 reserved1[5];
+                } __packed bad_cable;
         }                       event;
         u8                      slave_id;
         u8                      reserved3[2];