ixgbe: add support for 1G SX modules

This patch adds support for 1G Fiber PHY modules (SFP+ modules). This support
comes along side support for 1G Copper PHY modules, but uses a different PHY
type (ixgbe_sfp_type_1g_sx_core).
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c

@@ -241,7 +241,9 @@ static s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw,
 
 	/* Determine 1G link capabilities off of SFP+ type */
 	if (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0 ||
-	    hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1) {
+	    hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1 ||
+	    hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
+	    hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1) {
 		*speed = IXGBE_LINK_SPEED_1GB_FULL;
 		*negotiation = true;
 		goto out;

drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c

@@ -907,6 +907,8 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
 		  * 8   SFP_act_lmt_DA_CORE1 - 82599-specific
 		  * 9   SFP_1g_cu_CORE0 - 82599-specific
 		  * 10  SFP_1g_cu_CORE1 - 82599-specific
+		  * 11  SFP_1g_sx_CORE0 - 82599-specific
+		  * 12  SFP_1g_sx_CORE1 - 82599-specific
 		  */
 		if (hw->mac.type == ixgbe_mac_82598EB) {
 			if (cable_tech & IXGBE_SFF_DA_PASSIVE_CABLE)
@@ -957,6 +959,13 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
 				else
 					hw->phy.sfp_type =
 						ixgbe_sfp_type_1g_cu_core1;
+			} else if (comp_codes_1g & IXGBE_SFF_1GBASESX_CAPABLE) {
+				if (hw->bus.lan_id == 0)
+					hw->phy.sfp_type =
+						ixgbe_sfp_type_1g_sx_core0;
+				else
+					hw->phy.sfp_type =
+						ixgbe_sfp_type_1g_sx_core1;
 			} else {
 				hw->phy.sfp_type = ixgbe_sfp_type_unknown;
 			}
@@ -1049,7 +1058,9 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
 		/* Verify supported 1G SFP modules */
 		if (comp_codes_10g == 0 &&
 		    !(hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1 ||
-		      hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0)) {
+		      hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0 ||
+		      hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
+		      hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1)) {
 			hw->phy.type = ixgbe_phy_sfp_unsupported;
 			status = IXGBE_ERR_SFP_NOT_SUPPORTED;
 			goto out;
@@ -1064,7 +1075,9 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
 		hw->mac.ops.get_device_caps(hw, &enforce_sfp);
 		if (!(enforce_sfp & IXGBE_DEVICE_CAPS_ALLOW_ANY_SFP) &&
 		    !((hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0) ||
-		      (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1))) {
+		      (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1) ||
+		      (hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0) ||
+		      (hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1))) {
 			/* Make sure we're a supported PHY type */
 			if (hw->phy.type == ixgbe_phy_sfp_intel) {
 				status = 0;
@@ -1128,10 +1141,12 @@ s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
 	 * SR modules
 	 */
 	if (sfp_type == ixgbe_sfp_type_da_act_lmt_core0 ||
-	    sfp_type == ixgbe_sfp_type_1g_cu_core0)
+	    sfp_type == ixgbe_sfp_type_1g_cu_core0 ||
+	    sfp_type == ixgbe_sfp_type_1g_sx_core0)
 		sfp_type = ixgbe_sfp_type_srlr_core0;
 	else if (sfp_type == ixgbe_sfp_type_da_act_lmt_core1 ||
-	         sfp_type == ixgbe_sfp_type_1g_cu_core1)
+		 sfp_type == ixgbe_sfp_type_1g_cu_core1 ||
+		 sfp_type == ixgbe_sfp_type_1g_sx_core1)
 		sfp_type = ixgbe_sfp_type_srlr_core1;
 
 	/* Read offset to PHY init contents */

drivers/net/ethernet/intel/ixgbe/ixgbe_type.h

@@ -2604,6 +2604,8 @@ enum ixgbe_sfp_type {
 	ixgbe_sfp_type_da_act_lmt_core1 = 8,
 	ixgbe_sfp_type_1g_cu_core0 = 9,
 	ixgbe_sfp_type_1g_cu_core1 = 10,
+	ixgbe_sfp_type_1g_sx_core0 = 11,
+	ixgbe_sfp_type_1g_sx_core1 = 12,
 	ixgbe_sfp_type_not_present = 0xFFFE,
 	ixgbe_sfp_type_unknown = 0xFFFF
 };