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bnx2x: Add RJ45 SFP module detection 

Add RJ45 SFP module detection. In case the user set 10G link speed, and the
module doesn't support it, then force the speed to 1G and notify the user.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@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 2013-03-11 05:17:48 +00:00 committed by David S. Miller
parent ab5777d748
commit b807c74855
1 changed files with 13 additions and 8 deletions
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21
drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
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@ -152,6 +152,7 @@
#define SFP_EEPROM_CON_TYPE_ADDR 0x2
#define SFP_EEPROM_CON_TYPE_VAL_LC 0x7
#define SFP_EEPROM_CON_TYPE_VAL_COPPER 0x21
#define SFP_EEPROM_CON_TYPE_VAL_RJ45 0x22
#define SFP_EEPROM_COMP_CODE_ADDR 0x3
@ -8049,20 +8050,24 @@ static int bnx2x_get_edc_mode(struct bnx2x_phy *phy,
break;
}
case SFP_EEPROM_CON_TYPE_VAL_LC:
case SFP_EEPROM_CON_TYPE_VAL_RJ45:
check_limiting_mode = 1;
if ((val[1] & (SFP_EEPROM_COMP_CODE_SR_MASK |
SFP_EEPROM_COMP_CODE_LR_MASK |
SFP_EEPROM_COMP_CODE_LRM_MASK)) == 0) {
DP(NETIF_MSG_LINK, "1G Optic module detected\n");
DP(NETIF_MSG_LINK, "1G SFP module detected\n");
gport = params->port;
phy->media_type = ETH_PHY_SFP_1G_FIBER;
phy->req_line_speed = SPEED_1000;
if (!CHIP_IS_E1x(bp))
gport = BP_PATH(bp) + (params->port << 1);
netdev_err(bp->dev, "Warning: Link speed was forced to 1000Mbps."
" Current SFP module in port %d is not"
" compliant with 10G Ethernet\n",
gport);
if (phy->req_line_speed != SPEED_1000) {
phy->req_line_speed = SPEED_1000;
if (!CHIP_IS_E1x(bp)) {
gport = BP_PATH(bp) +
(params->port << 1);
}
netdev_err(bp->dev,
"Warning: Link speed was forced to 1000Mbps. Current SFP module in port %d is not compliant with 10G Ethernet\n",
gport);
}
} else {
int idx, cfg_idx = 0;
DP(NETIF_MSG_LINK, "10G Optic module detected\n");