From: Vadim Pasternak <vadimp@mellanox.com>
Date: Mon, 21 Oct 2019 13:30:30 +0300
Subject: mlxsw: reg: Add macro for getting QSFP module EEPROM page number
Patch-mainline: v5.5-rc1
Git-commit: f366cd2a2e510b155e18b21a2d149332aa08eb61
References: bsc#1154488
Provide a macro for getting QSFP module EEPROM page number from the
optional upper page number row offset, specified in request.
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/mellanox/mlxsw/reg.h | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -8412,6 +8412,7 @@ MLXSW_ITEM32(reg, mcia, device_address,
MLXSW_ITEM32(reg, mcia, size, 0x08, 0, 16);
#define MLXSW_REG_MCIA_EEPROM_PAGE_LENGTH 256
+#define MLXSW_REG_MCIA_EEPROM_UP_PAGE_LENGTH 128
#define MLXSW_REG_MCIA_EEPROM_SIZE 48
#define MLXSW_REG_MCIA_I2C_ADDR_LOW 0x50
#define MLXSW_REG_MCIA_I2C_ADDR_HIGH 0x51
@@ -8447,6 +8448,14 @@ enum mlxsw_reg_mcia_eeprom_module_info {
*/
MLXSW_ITEM_BUF(reg, mcia, eeprom, 0x10, MLXSW_REG_MCIA_EEPROM_SIZE);
+/* This is used to access the optional upper pages (1-3) in the QSFP+
+ * memory map. Page 1 is available on offset 256 through 383, page 2 -
+ * on offset 384 through 511, page 3 - on offset 512 through 639.
+ */
+#define MLXSW_REG_MCIA_PAGE_GET(off) (((off) - \
+ MLXSW_REG_MCIA_EEPROM_PAGE_LENGTH) / \
+ MLXSW_REG_MCIA_EEPROM_UP_PAGE_LENGTH + 1)
+
static inline void mlxsw_reg_mcia_pack(char *payload, u8 module, u8 lock,
u8 page_number, u16 device_addr,
u8 size, u8 i2c_device_addr)