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Commit e803d33a authored by Yaniv Rosner's avatar Yaniv Rosner Committed by David S. Miller
Browse files

bnx2x: Fix passive DAC cable detection 



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: default avatarYaniv Rosner <yanivr@broadcom.com>
Signed-off-by: default avatarAriel Elior <ariele@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b899e698

drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c

+12 −9
Original line number Diff line number Diff line
@@ -8133,17 +8133,20 @@ static int bnx2x_get_edc_mode(struct bnx2x_phy *phy, 
				*edc_mode = EDC_MODE_ACTIVE_DAC;

			else

				check_limiting_mode = 1;

		} else if (copper_module_type &

		} else {

			*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,

				   "Passive Copper cable detected\n");

				*edc_mode =

				      EDC_MODE_PASSIVE_DAC;

			} else {

				DP(NETIF_MSG_LINK,

			   "Unknown copper-cable-type 0x%x !!!\n",

			   copper_module_type);

			return -EINVAL;

				   "Unknown copper-cable-type\n");

			}

		}

		break;

	}