Author: hselasky
Date: Wed Dec 30 14:58:55 2015
New Revision: 292948
URL: https://svnweb.freebsd.org/changeset/base/292948
Log:
Allow I2C to read address 0x51 as well as address 0x50.
MFC after: 1 week
Submitted by: Shahar Klein <shah...@mellanox.com>
Sponsored by: Mellanox Technologies
Modified:
head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c
Modified: head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c
==============================================================================
--- head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c Wed Dec 30 14:57:42 2015
(r292947)
+++ head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c Wed Dec 30 14:58:55 2015
(r292948)
@@ -2298,6 +2298,7 @@ mlx5e_ioctl(struct ifnet *ifp, u_long co
int size_read = 0;
int module_num;
int max_mtu;
+ uint8_t read_addr;
priv = ifp->if_softc;
@@ -2484,11 +2485,21 @@ out:
}
/*
- * Note that we ignore i2c.addr here. The driver hardcodes
- * the address to 0x50, while standard expects it to be 0xA0.
+ * Currently 0XA0 and 0xA2 are the only addresses permitted.
+ * The internal conversion is as follows:
*/
+ if (i2c.dev_addr == 0xA0)
+ read_addr = MLX5E_I2C_ADDR_LOW;
+ else if (i2c.dev_addr == 0xA2)
+ read_addr = MLX5E_I2C_ADDR_HIGH;
+ else {
+ if_printf(ifp, "Query eeprom failed, "
+ "Invalid Address: %X\n", i2c.dev_addr);
+ error = EINVAL;
+ goto err_i2c;
+ }
error = mlx5_query_eeprom(priv->mdev,
- MLX5E_I2C_ADDR_LOW, MLX5E_EEPROM_LOW_PAGE,
+ read_addr, MLX5E_EEPROM_LOW_PAGE,
(uint32_t)i2c.offset, (uint32_t)i2c.len, module_num,
(uint32_t *)i2c.data, &size_read);
if (error) {
@@ -2499,7 +2510,7 @@ out:
if (i2c.len > MLX5_EEPROM_MAX_BYTES) {
error = mlx5_query_eeprom(priv->mdev,
- MLX5E_I2C_ADDR_LOW, MLX5E_EEPROM_LOW_PAGE,
+ read_addr, MLX5E_EEPROM_LOW_PAGE,
(uint32_t)(i2c.offset + size_read),
(uint32_t)(i2c.len - size_read), module_num,
(uint32_t *)(i2c.data + size_read), &size_read);
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