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[RFC,net-next,v2,2/6] mlxsw: reg: Add Port Module Memory Map Properties register

Message ID 20210818155202.1278177-3-idosch@idosch.org
State New
Headers show
Series ethtool: Add ability to control transceiver modules' power mode | expand

Commit Message

Ido Schimmel Aug. 18, 2021, 3:51 p.m. UTC 
From: Ido Schimmel <idosch@nvidia.com>

Add the Port Module Memory Map Properties register. It will be used to
set the power mode of a module in subsequent patches.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlxsw/reg.h | 44 +++++++++++++++++++++++
 1 file changed, 44 insertions(+)
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Patch

diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index 16092a1f68bb..e30e6d3482f6 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -5883,6 +5883,49 @@  static inline void mlxsw_reg_pddr_pack(char *payload, u8 local_port,
 	mlxsw_reg_pddr_page_select_set(payload, page_select);
 }
 
+/* PMMP - Port Module Memory Map Properties Register
+ * -------------------------------------------------
+ * The PMMP register allows to override the module memory map advertisement.
+ * The register can only be set when the module is disabled by PMAOS register.
+ */
+#define MLXSW_REG_PMMP_ID 0x5044
+#define MLXSW_REG_PMMP_LEN 0x2C
+
+MLXSW_REG_DEFINE(pmmp, MLXSW_REG_PMMP_ID, MLXSW_REG_PMMP_LEN);
+
+/* reg_pmmp_module
+ * Module number.
+ * Access: Index
+ */
+MLXSW_ITEM32(reg, pmmp, module, 0x00, 16, 8);
+
+/* reg_pmmp_eeprom_override_mask
+ * Write mask bit (negative polarity).
+ * 0 - Allow write
+ * 1 - Ignore write
+ * On write, indicates which of the bits from eeprom_override field are
+ * updated.
+ * Access: WO
+ */
+MLXSW_ITEM32(reg, pmmp, eeprom_override_mask, 0x04, 16, 16);
+
+enum {
+	/* Set module to low power mode */
+	MLXSW_REG_PMMP_EEPROM_OVERRIDE_LOW_POWER_MASK = BIT(8),
+};
+
+/* reg_pmmp_eeprom_override
+ * Override / ignore EEPROM advertisement properties bitmask
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, pmmp, eeprom_override, 0x04, 0, 16);
+
+static inline void mlxsw_reg_pmmp_pack(char *payload, u8 module)
+{
+	MLXSW_REG_ZERO(pmmp, payload);
+	mlxsw_reg_pmmp_module_set(payload, module);
+}
+
 /* PMTM - Port Module Type Mapping Register
  * ----------------------------------------
  * The PMTM allows query or configuration of module types.
@@ -12225,6 +12268,7 @@  static const struct mlxsw_reg_info *mlxsw_reg_infos[] = {
 	MLXSW_REG(pplr),
 	MLXSW_REG(pmpe),
 	MLXSW_REG(pddr),
+	MLXSW_REG(pmmp),
 	MLXSW_REG(pmtm),
 	MLXSW_REG(htgt),
 	MLXSW_REG(hpkt),