[dpdk-dev] [PATCH] net/ixgbe: fix link never come up problem with x552

[Wei Zhao <wei.zhao1@intel.com>]

From: zhao wei <wei.zhao1@intel.com>

The links never coming up with DPDK16.11 when bring up x552 NIC,
device id is 15ac.This is caused by delete some code which casing
removes X550em SFP iXFI setup for the drivers in function
ixgbe_setup_mac_link_sfp_x550em().Fix methord is recover
the deleted code.

Fixes: 1726b9cd9c40 ("net/ixgbe/base: remove X550em SFP iXFI setup")

Signed-off-by: zhao wei <wei.zhao1@intel.com>
---
 drivers/net/ixgbe/base/ixgbe_x550.c | 57 ++++++++++++++++++++++++++++++-------
 1 file changed, 46 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ixgbe/base/ixgbe_x550.c b/drivers/net/ixgbe/base/ixgbe_x550.c
index 87d4302..acb8140 100644
--- a/drivers/net/ixgbe/base/ixgbe_x550.c
+++ b/drivers/net/ixgbe/base/ixgbe_x550.c
@@ -2762,18 +2762,53 @@ s32 ixgbe_setup_mac_link_sfp_x550em(struct ixgbe_hw *hw,
 	if (ret_val != IXGBE_SUCCESS)
 		return ret_val;
 
-	/* Configure internal PHY for KR/KX. */
-	ixgbe_setup_kr_speed_x550em(hw, speed);
-
-	/* Configure CS4227 LINE side to proper mode. */
-	reg_slice = IXGBE_CS4227_LINE_SPARE24_LSB +
-		    (hw->bus.lan_id << 12);
-	if (setup_linear)
-		reg_val = (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 0x1;
-	else
+	if (!(hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_INT_PHY_MODE)) {
+		/* Configure CS4227 LINE side to 10G SR. */
+		reg_slice = IXGBE_CS4227_LINE_SPARE22_MSB +
+			    (hw->bus.lan_id << 12);
+		reg_val = IXGBE_CS4227_SPEED_10G;
+		ret_val = hw->link.ops.write_link(hw, hw->link.addr, reg_slice,
+						  reg_val);
+
+		reg_slice = IXGBE_CS4227_LINE_SPARE24_LSB +
+			    (hw->bus.lan_id << 12);
 		reg_val = (IXGBE_CS4227_EDC_MODE_SR << 1) | 0x1;
-	ret_val = hw->link.ops.write_link(hw, hw->link.addr, reg_slice,
-					  reg_val);
+		ret_val = hw->link.ops.write_link(hw, hw->link.addr, reg_slice,
+						  reg_val);
+
+		/* Configure CS4227 for HOST connection rate then type. */
+		reg_slice = IXGBE_CS4227_HOST_SPARE22_MSB +
+			    (hw->bus.lan_id << 12);
+		reg_val = (speed & IXGBE_LINK_SPEED_10GB_FULL) ?
+		IXGBE_CS4227_SPEED_10G : IXGBE_CS4227_SPEED_1G;
+		ret_val = hw->link.ops.write_link(hw, hw->link.addr, reg_slice,
+						  reg_val);
+
+		reg_slice = IXGBE_CS4227_HOST_SPARE24_LSB +
+			    (hw->bus.lan_id << 12);
+		if (setup_linear)
+			reg_val = (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 0x1;
+		else
+			reg_val = (IXGBE_CS4227_EDC_MODE_SR << 1) | 0x1;
+		ret_val = hw->link.ops.write_link(hw, hw->link.addr, reg_slice,
+						  reg_val);
+
+		/* Setup XFI internal link. */
+		ret_val = ixgbe_setup_ixfi_x550em(hw, &speed);
+	} else {
+		/* Configure internal PHY for KR/KX. */
+		ixgbe_setup_kr_speed_x550em(hw, speed);
+
+		/* Configure CS4227 LINE side to proper mode. */
+		reg_slice = IXGBE_CS4227_LINE_SPARE24_LSB +
+			    (hw->bus.lan_id << 12);
+		if (setup_linear)
+			reg_val = (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 0x1;
+		else
+			reg_val = (IXGBE_CS4227_EDC_MODE_SR << 1) | 0x1;
+		ret_val = hw->link.ops.write_link(hw, hw->link.addr, reg_slice,
+						  reg_val);
+	}
 	return ret_val;
 }
 
-- 
2.5.5