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bnx2x: Fix passive DAC cable detection

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Fix Passive DAC detection for specific cables, such that even in case
SFP_CABLE_TECHNOLOGY option is not set in the EEPROM (offset 8), treat it as a
passive DAC cable, since some cables don't have this indication.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yaniv Rosner 2014-01-01 11:06:42 +02:00 committed by David S. Miller
parent b899e698fc
commit e803d33a32
1 changed files with 12 additions and 9 deletions
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21
drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
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@ -8133,17 +8133,20 @@ static int bnx2x_get_edc_mode(struct bnx2x_phy *phy,
*edc_mode = EDC_MODE_ACTIVE_DAC; *edc_mode = EDC_MODE_ACTIVE_DAC;
else else
check_limiting_mode = 1; check_limiting_mode = 1;
} else if (copper_module_type & } else {
SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_PASSIVE) { *edc_mode = EDC_MODE_PASSIVE_DAC;
/* Even in case PASSIVE_DAC indication is not set,
* treat it as a passive DAC cable, since some cables
* don't have this indication.
*/
if (copper_module_type &
SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_PASSIVE) {
DP(NETIF_MSG_LINK, DP(NETIF_MSG_LINK,
"Passive Copper cable detected\n"); "Passive Copper cable detected\n");
*edc_mode = } else {
EDC_MODE_PASSIVE_DAC; DP(NETIF_MSG_LINK,
} else { "Unknown copper-cable-type\n");
DP(NETIF_MSG_LINK, }
"Unknown copper-cable-type 0x%x !!!\n",
copper_module_type);
return -EINVAL;
} }
break; break;
} }