diff mbox series

[RFC,net-next,3/8] mlxsw: reg: Add fields to PMAOS register

Message ID 20210809102152.719961-4-idosch@idosch.org
State New
Headers show
Series ethtool: Add ability to control transceiver modules | expand

Commit Message

Ido Schimmel Aug. 9, 2021, 10:21 a.m. UTC 
From: Ido Schimmel <idosch@nvidia.com>

The Ports Module Administrative and Operational Status (PMAOS) register
configures and retrieves the per-module status. Extend it with fields
required to support various module settings such as reset and low power
mode.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlxsw/reg.h | 58 +++++++++++++++++++++++
 1 file changed, 58 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index 6fbda6ebd590..b2c55259f333 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -5681,6 +5681,14 @@  static inline void mlxsw_reg_pspa_pack(char *payload, u8 swid, u8 local_port)
 
 MLXSW_REG_DEFINE(pmaos, MLXSW_REG_PMAOS_ID, MLXSW_REG_PMAOS_LEN);
 
+/* reg_pmaos_rst
+ * Module reset toggle.
+ * Note: Setting reset while module is plugged-in will result in transition to
+ * "initializing" operational state.
+ * Access: OP
+ */
+MLXSW_ITEM32(reg, pmaos, rst, 0x00, 31, 1);
+
 /* reg_pmaos_slot_index
  * Slot index.
  * Access: Index
@@ -5693,6 +5701,38 @@  MLXSW_ITEM32(reg, pmaos, slot_index, 0x00, 24, 4);
  */
 MLXSW_ITEM32(reg, pmaos, module, 0x00, 16, 8);
 
+enum mlxsw_reg_pmaos_admin_status {
+	MLXSW_REG_PMAOS_ADMIN_STATUS_ENABLED = 1,
+	MLXSW_REG_PMAOS_ADMIN_STATUS_DISABLED = 2,
+	/* If the module is active and then unplugged, or experienced an error
+	 * event, the operational status should go to "disabled" and can only
+	 * be enabled upon explicit enable command.
+	 */
+	MLXSW_REG_PMAOS_ADMIN_STATUS_ENABLED_ONCE = 3,
+};
+
+/* reg_pmaos_admin_status
+ * Module administrative state (the desired state of the module).
+ * Note: To disable a module, all ports associated with the port must be
+ * administatively down first.
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, pmaos, admin_status, 0x00, 8, 4);
+
+enum mlxsw_reg_pmaos_oper_status {
+	MLXSW_REG_PMAOS_OPER_STATUS_INITIALIZING,
+	MLXSW_REG_PMAOS_OPER_STATUS_PLUGGED_ENABLED,
+	MLXSW_REG_PMAOS_OPER_STATUS_UNPLUGGED,
+	/* Error code can be read from PMAOS.error_type */
+	MLXSW_REG_PMAOS_OPER_STATUS_PLUGGED_ERROR,
+};
+
+/* reg_pmaos_oper_status
+ * Module state. Reserved while administrative state is disabled.
+ * Access: RO
+ */
+MLXSW_ITEM32(reg, pmaos, oper_status, 0x00, 0, 4);
+
 /* reg_pmaos_ase
  * Admin state update enable.
  * If this bit is set, admin state will be updated based on admin_state field.
@@ -5709,6 +5749,24 @@  MLXSW_ITEM32(reg, pmaos, ase, 0x04, 31, 1);
  */
 MLXSW_ITEM32(reg, pmaos, ee, 0x04, 30, 1);
 
+enum mlxsw_reg_pmaos_error_type {
+	MLXSW_REG_PMAOS_ERROR_TYPE_POWER_BUDGET_EXCEEDED = 0,
+	/* I2C data or clock shorted */
+	MLXSW_REG_PMAOS_ERROR_TYPE_BUS_STUCK = 2,
+	MLXSW_REG_PMAOS_ERROR_TYPE_BAD_UNSUPPORTED_EEPROM = 3,
+	MLXSW_REG_PMAOS_ERROR_TYPE_UNSUPPORTED_CABLE = 5,
+	MLXSW_REG_PMAOS_ERROR_TYPE_HIGH_TEMP = 6,
+	/* Module / cable is shorted */
+	MLXSW_REG_PMAOS_ERROR_TYPE_BAD_CABLE = 7,
+};
+
+/* reg_pmaos_error_type
+ * Module error details. Only valid when operational status is "plugged with
+ * error".
+ * Access: RO
+ */
+MLXSW_ITEM32(reg, pmaos, error_type, 0x04, 8, 4);
+
 enum mlxsw_reg_pmaos_e {
 	MLXSW_REG_PMAOS_E_DO_NOT_GENERATE_EVENT,
 	MLXSW_REG_PMAOS_E_GENERATE_EVENT,