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>

1 files changed, 13 insertions, 8 deletions

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index 77ebae0ac64a..329c7f9a2694 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -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");