1 files changed, 127 insertions, 18 deletions

diff --git a/drivers/net/ixgbe/base/ixgbe_common.c b/drivers/net/ixgbe/base/ixgbe_common.c
index 1c5cb913..cca19efc 100644
--- a/drivers/net/ixgbe/base/ixgbe_common.c
+++ b/drivers/net/ixgbe/base/ixgbe_common.c
@@ -168,13 +168,24 @@ bool ixgbe_device_supports_autoneg_fc(struct ixgbe_hw *hw)
 	switch (hw->phy.media_type) {
 	case ixgbe_media_type_fiber_qsfp:
 	case ixgbe_media_type_fiber:
-		hw->mac.ops.check_link(hw, &speed, &link_up, false);
-		/* if link is down, assume supported */
-		if (link_up)
-			supported = speed == IXGBE_LINK_SPEED_1GB_FULL ?
+		/* flow control autoneg black list */
+		switch (hw->device_id) {
+		case IXGBE_DEV_ID_X550EM_A_SFP:
+		case IXGBE_DEV_ID_X550EM_A_SFP_N:
+		case IXGBE_DEV_ID_X550EM_A_QSFP:
+		case IXGBE_DEV_ID_X550EM_A_QSFP_N:
+			supported = false;
+			break;
+		default:
+			hw->mac.ops.check_link(hw, &speed, &link_up, false);
+			/* if link is down, assume supported */
+			if (link_up)
+				supported = speed == IXGBE_LINK_SPEED_1GB_FULL ?
 				true : false;
-		else
-			supported = true;
+			else
+				supported = true;
+		}
+
 		break;
 	case ixgbe_media_type_backplane:
 		supported = true;
@@ -188,6 +199,9 @@ bool ixgbe_device_supports_autoneg_fc(struct ixgbe_hw *hw)
 		case IXGBE_DEV_ID_X550T:
 		case IXGBE_DEV_ID_X550T1:
 		case IXGBE_DEV_ID_X550EM_X_10G_T:
+		case IXGBE_DEV_ID_X550EM_A_10G_T:
+		case IXGBE_DEV_ID_X550EM_A_1G_T:
+		case IXGBE_DEV_ID_X550EM_A_1G_T_L:
 			supported = true;
 			break;
 		default:
@@ -197,9 +211,10 @@ bool ixgbe_device_supports_autoneg_fc(struct ixgbe_hw *hw)
 		break;
 	}
 
-	ERROR_REPORT2(IXGBE_ERROR_UNSUPPORTED,
-		      "Device %x does not support flow control autoneg",
-		      hw->device_id);
+	if (!supported)
+		ERROR_REPORT2(IXGBE_ERROR_UNSUPPORTED,
+			      "Device %x does not support flow control autoneg",
+			      hw->device_id);
 	return supported;
 }
 
@@ -371,6 +386,7 @@ s32 ixgbe_start_hw_generic(struct ixgbe_hw *hw)
 {
 	s32 ret_val;
 	u32 ctrl_ext;
+	u16 device_caps;
 
 	DEBUGFUNC("ixgbe_start_hw_generic");
 
@@ -393,14 +409,29 @@ s32 ixgbe_start_hw_generic(struct ixgbe_hw *hw)
 
 	/* Setup flow control */
 	ret_val = ixgbe_setup_fc(hw);
-	if (ret_val != IXGBE_SUCCESS)
-		goto out;
+	if (ret_val != IXGBE_SUCCESS && ret_val != IXGBE_NOT_IMPLEMENTED)
+		return ret_val;
+
+	/* Cache bit indicating need for crosstalk fix */
+	switch (hw->mac.type) {
+	case ixgbe_mac_82599EB:
+	case ixgbe_mac_X550EM_x:
+	case ixgbe_mac_X550EM_a:
+		hw->mac.ops.get_device_caps(hw, &device_caps);
+		if (device_caps & IXGBE_DEVICE_CAPS_NO_CROSSTALK_WR)
+			hw->need_crosstalk_fix = false;
+		else
+			hw->need_crosstalk_fix = true;
+		break;
+	default:
+		hw->need_crosstalk_fix = false;
+		break;
+	}
 
 	/* Clear adapter stopped flag */
 	hw->adapter_stopped = false;
 
-out:
-	return ret_val;
+	return IXGBE_SUCCESS;
 }
 
 /**
@@ -1046,7 +1077,7 @@ void ixgbe_set_lan_id_multi_port_pcie(struct ixgbe_hw *hw)
 	if (hw->device_id == IXGBE_DEV_ID_X550EM_A_SFP) {
 		hw->eeprom.ops.read(hw, IXGBE_EEPROM_CTRL_4, &ee_ctrl_4);
 		bus->instance_id = (ee_ctrl_4 & IXGBE_EE_CTRL_4_INST_ID) >>
-			IXGBE_EE_CTRL_4_INST_ID_SHIFT;
+				   IXGBE_EE_CTRL_4_INST_ID_SHIFT;
 	}
 }
 
@@ -1115,6 +1146,9 @@ s32 ixgbe_led_on_generic(struct ixgbe_hw *hw, u32 index)
 
 	DEBUGFUNC("ixgbe_led_on_generic");
 
+	if (index > 3)
+		return IXGBE_ERR_PARAM;
+
 	/* To turn on the LED, set mode to ON. */
 	led_reg &= ~IXGBE_LED_MODE_MASK(index);
 	led_reg |= IXGBE_LED_ON << IXGBE_LED_MODE_SHIFT(index);
@@ -1135,6 +1169,9 @@ s32 ixgbe_led_off_generic(struct ixgbe_hw *hw, u32 index)
 
 	DEBUGFUNC("ixgbe_led_off_generic");
 
+	if (index > 3)
+		return IXGBE_ERR_PARAM;
+
 	/* To turn off the LED, set mode to OFF. */
 	led_reg &= ~IXGBE_LED_MODE_MASK(index);
 	led_reg |= IXGBE_LED_OFF << IXGBE_LED_MODE_SHIFT(index);
@@ -2851,7 +2888,7 @@ out:
  *  advertised settings
  **/
 s32 ixgbe_negotiate_fc(struct ixgbe_hw *hw, u32 adv_reg, u32 lp_reg,
-			      u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm)
+		       u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm)
 {
 	if ((!(adv_reg)) ||  (!(lp_reg))) {
 		ERROR_REPORT3(IXGBE_ERROR_UNSUPPORTED,
@@ -3323,7 +3360,7 @@ s32 prot_autoc_write_generic(struct ixgbe_hw *hw, u32 reg_val, bool locked)
  **/
 s32 ixgbe_enable_sec_rx_path_generic(struct ixgbe_hw *hw)
 {
-	int secrxreg;
+	u32 secrxreg;
 
 	DEBUGFUNC("ixgbe_enable_sec_rx_path_generic");
 
@@ -3370,6 +3407,9 @@ s32 ixgbe_blink_led_start_generic(struct ixgbe_hw *hw, u32 index)
 
 	DEBUGFUNC("ixgbe_blink_led_start_generic");
 
+	if (index > 3)
+		return IXGBE_ERR_PARAM;
+
 	/*
 	 * Link must be up to auto-blink the LEDs;
 	 * Force it if link is down.
@@ -3415,6 +3455,10 @@ s32 ixgbe_blink_led_stop_generic(struct ixgbe_hw *hw, u32 index)
 
 	DEBUGFUNC("ixgbe_blink_led_stop_generic");
 
+	if (index > 3)
+		return IXGBE_ERR_PARAM;
+
+
 	ret_val = hw->mac.ops.prot_autoc_read(hw, &locked, &autoc_reg);
 	if (ret_val != IXGBE_SUCCESS)
 		goto out;
@@ -3887,7 +3931,8 @@ s32 ixgbe_set_vfta_generic(struct ixgbe_hw *hw, u32 vlan, u32 vind,
 	vfta_delta = 1 << (vlan % 32);
 	vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(regidx));
 
-	/* vfta_delta represents the difference between the current value
+	/*
+	 * vfta_delta represents the difference between the current value
 	 * of vfta and the value we want in the register.  Since the diff
 	 * is an XOR mask we can just update the vfta using an XOR
 	 */
@@ -3920,7 +3965,7 @@ vfta_update:
  *  @vind: VMDq output index that maps queue to VLAN id in VLVFB
  *  @vlan_on: boolean flag to turn on/off VLAN in VLVF
  *  @vfta_delta: pointer to the difference between the current value of VFTA
- * and the desired value
+ *		 and the desired value
  *  @vfta: the desired value of the VFTA
  *  @vlvf_bypass: boolean flag indicating updating default pool is okay
  *
@@ -3947,6 +3992,7 @@ s32 ixgbe_set_vlvf_generic(struct ixgbe_hw *hw, u32 vlan, u32 vind,
 	 */
 	if (!(IXGBE_READ_REG(hw, IXGBE_VT_CTL) & IXGBE_VT_CTL_VT_ENABLE))
 		return IXGBE_SUCCESS;
+
 	vlvf_index = ixgbe_find_vlvf_slot(hw, vlan, vlvf_bypass);
 	if (vlvf_index < 0)
 		return vlvf_index;
@@ -3976,6 +4022,7 @@ s32 ixgbe_set_vlvf_generic(struct ixgbe_hw *hw, u32 vlan, u32 vind,
 
 		return IXGBE_SUCCESS;
 	}
+
 	/* If there are still bits set in the VLVFB registers
 	 * for the VLAN ID indicated we need to see if the
 	 * caller is requesting that we clear the VFTA entry bit.
@@ -4025,6 +4072,32 @@ s32 ixgbe_clear_vfta_generic(struct ixgbe_hw *hw)
 }
 
 /**
+ *  ixgbe_need_crosstalk_fix - Determine if we need to do cross talk fix
+ *  @hw: pointer to hardware structure
+ *
+ *  Contains the logic to identify if we need to verify link for the
+ *  crosstalk fix
+ **/
+static bool ixgbe_need_crosstalk_fix(struct ixgbe_hw *hw)
+{
+
+	/* Does FW say we need the fix */
+	if (!hw->need_crosstalk_fix)
+		return false;
+
+	/* Only consider SFP+ PHYs i.e. media type fiber */
+	switch (hw->mac.ops.get_media_type(hw)) {
+	case ixgbe_media_type_fiber:
+	case ixgbe_media_type_fiber_qsfp:
+		break;
+	default:
+		return false;
+	}
+
+	return true;
+}
+
+/**
  *  ixgbe_check_mac_link_generic - Determine link and speed status
  *  @hw: pointer to hardware structure
  *  @speed: pointer to link speed
@@ -4041,6 +4114,35 @@ s32 ixgbe_check_mac_link_generic(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
 
 	DEBUGFUNC("ixgbe_check_mac_link_generic");
 
+	/* If Crosstalk fix enabled do the sanity check of making sure
+	 * the SFP+ cage is full.
+	 */
+	if (ixgbe_need_crosstalk_fix(hw)) {
+		u32 sfp_cage_full;
+
+		switch (hw->mac.type) {
+		case ixgbe_mac_82599EB:
+			sfp_cage_full = IXGBE_READ_REG(hw, IXGBE_ESDP) &
+					IXGBE_ESDP_SDP2;
+			break;
+		case ixgbe_mac_X550EM_x:
+		case ixgbe_mac_X550EM_a:
+			sfp_cage_full = IXGBE_READ_REG(hw, IXGBE_ESDP) &
+					IXGBE_ESDP_SDP0;
+			break;
+		default:
+			/* sanity check - No SFP+ devices here */
+			sfp_cage_full = false;
+			break;
+		}
+
+		if (!sfp_cage_full) {
+			*link_up = false;
+			*speed = IXGBE_LINK_SPEED_UNKNOWN;
+			return IXGBE_SUCCESS;
+		}
+	}
+
 	/* clear the old state */
 	links_orig = IXGBE_READ_REG(hw, IXGBE_LINKS);
 
@@ -4087,6 +4189,13 @@ s32 ixgbe_check_mac_link_generic(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
 				*speed = IXGBE_LINK_SPEED_5GB_FULL;
 		}
 		break;
+	case IXGBE_LINKS_SPEED_10_X550EM_A:
+		*speed = IXGBE_LINK_SPEED_UNKNOWN;
+		if (hw->device_id == IXGBE_DEV_ID_X550EM_A_1G_T ||
+		    hw->device_id == IXGBE_DEV_ID_X550EM_A_1G_T_L) {
+			*speed = IXGBE_LINK_SPEED_10_FULL;
+		}
+		break;
 	default:
 		*speed = IXGBE_LINK_SPEED_UNKNOWN;
 	}