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bnx2x: Add CMS functionality for 848x3 

Add CMS(Common Mode Sense) functionality for 848x3 as this reduces power consumption and allows a better 10G link stability

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yaniv Rosner 2011-01-31 04:22:46 +00:00 committed by David S. Miller
parent c87bca1eaa
commit 1bef68e3f5
2 changed files with 22 additions and 1 deletions
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6
drivers/net/bnx2x/bnx2x_hsi.h
View File

@ -330,6 +330,12 @@ struct port_hw_cfg { /* port 0: 0x12c port 1: 0x2bc */
#define PORT_HW_CFG_ENABLE_BAM_ON_KR_DISABLED 0x00000000
#define PORT_HW_CFG_ENABLE_BAM_ON_KR_ENABLED 0x00100000
/* Enable Common Mode Sense */
#define PORT_HW_CFG_ENABLE_CMS_MASK 0x00200000
#define PORT_HW_CFG_ENABLE_CMS_SHIFT 21
#define PORT_HW_CFG_ENABLE_CMS_DISABLED 0x00000000
#define PORT_HW_CFG_ENABLE_CMS_ENABLED 0x00200000
u32 speed_capability_mask2; /* 0x28C */
#define PORT_HW_CFG_SPEED_CAPABILITY2_D3_MASK 0x0000FFFF
#define PORT_HW_CFG_SPEED_CAPABILITY2_D3_SHIFT 0

17
drivers/net/bnx2x/bnx2x_link.c
View File

@ -6257,7 +6257,7 @@ static u8 bnx2x_848x3_config_init(struct bnx2x_phy *phy,
u8 port, initialize = 1;
u16 val, adj;
u16 temp;
u32 actual_phy_selection;
u32 actual_phy_selection, cms_enable;
u8 rc = 0;
/* This is just for MDIO_CTL_REG_84823_MEDIA register. */
@ -6329,6 +6329,21 @@ static u8 bnx2x_848x3_config_init(struct bnx2x_phy *phy,
rc = bnx2x_848xx_cmn_config_init(phy, params, vars);
else
bnx2x_save_848xx_spirom_version(phy, params);
cms_enable = REG_RD(bp, params->shmem_base +
offsetof(struct shmem_region,
dev_info.port_hw_config[params->port].default_cfg)) &
PORT_HW_CFG_ENABLE_CMS_MASK;
bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
MDIO_CTL_REG_84823_USER_CTRL_REG, &val);
if (cms_enable)
val |= MDIO_CTL_REG_84823_USER_CTRL_CMS;
else
val &= ~MDIO_CTL_REG_84823_USER_CTRL_CMS;
bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
MDIO_CTL_REG_84823_USER_CTRL_REG, val);
return rc;
}