net/mlx5: Add handling for port module event

For each asynchronous port module event:
  1. print with ratelimit to the dmesg log
  2. increment the corresponding event counter

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 27 insertions, 0 deletions

diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 5e7dbbcf47f0..7336c8e529d7 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -498,6 +498,31 @@ struct mlx5_rl_table {
         struct mlx5_rl_entry   *rl_entry;
 };
 
+enum port_module_event_status_type {
+        MLX5_MODULE_STATUS_PLUGGED   = 0x1,
+        MLX5_MODULE_STATUS_UNPLUGGED = 0x2,
+        MLX5_MODULE_STATUS_ERROR     = 0x3,
+        MLX5_MODULE_STATUS_NUM       = 0x3,
+};
+
+enum  port_module_event_error_type {
+        MLX5_MODULE_EVENT_ERROR_POWER_BUDGET_EXCEEDED,
+        MLX5_MODULE_EVENT_ERROR_LONG_RANGE_FOR_NON_MLNX_CABLE_MODULE,
+        MLX5_MODULE_EVENT_ERROR_BUS_STUCK,
+        MLX5_MODULE_EVENT_ERROR_NO_EEPROM_RETRY_TIMEOUT,
+        MLX5_MODULE_EVENT_ERROR_ENFORCE_PART_NUMBER_LIST,
+        MLX5_MODULE_EVENT_ERROR_UNKNOWN_IDENTIFIER,
+        MLX5_MODULE_EVENT_ERROR_HIGH_TEMPERATURE,
+        MLX5_MODULE_EVENT_ERROR_BAD_CABLE,
+        MLX5_MODULE_EVENT_ERROR_UNKNOWN,
+        MLX5_MODULE_EVENT_ERROR_NUM,
+};
+
+struct mlx5_port_module_event_stats {
+        u64 status_counters[MLX5_MODULE_STATUS_NUM];
+        u64 error_counters[MLX5_MODULE_EVENT_ERROR_NUM];
+};
+
 struct mlx5_priv {
         char                    name[MLX5_MAX_NAME_LEN];
         struct mlx5_eq_table    eq_table;
@@ -559,6 +584,8 @@ struct mlx5_priv {
         unsigned long           pci_dev_data;
         struct mlx5_fc_stats            fc_stats;
         struct mlx5_rl_table            rl_table;
+
+        struct mlx5_port_module_event_stats  pme_stats;
 };
 
 enum mlx5_device_state {