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Date:   Wed, 15 Sep 2021 13:13:12 +0300
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, andrew@...n.ch,
        jiri@...dia.com, vadimp@...dia.com, mlxsw@...dia.com,
        Ido Schimmel <idosch@...dia.com>
Subject: [PATCH net-next 08/10] mlxsw: reg: Add fields to PMAOS register

From: Ido Schimmel <idosch@...dia.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 power
mode.

Signed-off-by: Ido Schimmel <idosch@...dia.com>
---
 drivers/net/ethernet/mellanox/mlxsw/reg.h | 26 +++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index 8d87f3cc5711..667856f00728 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 +5701,24 @@ 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);
+
 /* reg_pmaos_ase
  * Admin state update enable.
  * If this bit is set, admin state will be updated based on admin_state field.
-- 
2.31.1

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