[dpdk-dev] [PATCH v2 04/30] net/ixgbe/base: fix PHY identification for x550a

[Wei Dai <wei.dai@intel.com>]

Method to identify the CS4223/CS4227 is incorrect and unreliable.
Provide a new register to differentiate between these PHY SKUs.

Fixes: fc0559bdb5e3 ("net/ixgbe/base: add link MAC setup for X550a SFP+")

CC: stable@dpdk.org

Signed-off-by: Wei Dai <wei.dai@intel.com>
---
 drivers/net/ixgbe/base/ixgbe_phy.h  | 5 +++--
 drivers/net/ixgbe/base/ixgbe_x550.c | 6 +++---
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ixgbe/base/ixgbe_phy.h b/drivers/net/ixgbe/base/ixgbe_phy.h
index da14abc..816de36 100644
--- a/drivers/net/ixgbe/base/ixgbe_phy.h
+++ b/drivers/net/ixgbe/base/ixgbe_phy.h
@@ -92,8 +92,9 @@ POSSIBILITY OF SUCH DAMAGE.
 #define IXGBE_CS4227_GLOBAL_ID_MSB	1
 #define IXGBE_CS4227_SCRATCH		2
 #define IXGBE_CS4227_GLOBAL_ID_VALUE	0x03E5
-#define IXGBE_CS4223_PHY_ID		0x7003	/* Quad port */
-#define IXGBE_CS4227_PHY_ID		0x3003	/* Dual port */
+#define IXGBE_CS4227_EFUSE_PDF_SKU	0x19F
+#define IXGBE_CS4223_SKU_ID		0x0010	/* Quad port */
+#define IXGBE_CS4227_SKU_ID		0x0014	/* Dual port */
 #define IXGBE_CS4227_RESET_PENDING	0x1357
 #define IXGBE_CS4227_RESET_COMPLETE	0x5AA5
 #define IXGBE_CS4227_RETRIES		15
diff --git a/drivers/net/ixgbe/base/ixgbe_x550.c b/drivers/net/ixgbe/base/ixgbe_x550.c
index c1fac1a..f5143f9 100644
--- a/drivers/net/ixgbe/base/ixgbe_x550.c
+++ b/drivers/net/ixgbe/base/ixgbe_x550.c
@@ -2927,8 +2927,8 @@ s32 ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw *hw,
 			return IXGBE_ERR_PHY_ADDR_INVALID;
 		}
 
-		/* Get external PHY device id */
-		ret_val = hw->phy.ops.read_reg(hw, IXGBE_CS4227_GLOBAL_ID_MSB,
+		/* Get external PHY SKU id */
+		ret_val = hw->phy.ops.read_reg(hw, IXGBE_CS4227_EFUSE_PDF_SKU,
 					IXGBE_MDIO_ZERO_DEV_TYPE, &reg_phy_ext);
 
 		if (ret_val != IXGBE_SUCCESS)
@@ -2937,7 +2937,7 @@ s32 ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw *hw,
 		/* When configuring quad port CS4223, the MAC instance is part
 		 * of the slice offset.
 		 */
-		if (reg_phy_ext == IXGBE_CS4223_PHY_ID)
+		if (reg_phy_ext == IXGBE_CS4223_SKU_ID)
 			slice_offset = (hw->bus.lan_id +
 					(hw->bus.instance_id << 1)) << 12;
 		else
-- 
2.7.4