[PATCH 5/6] net/txgbe: add check link for Amber-Lite VF

[Zaiyu Wang <zaiyuwang@trustnetic.com>]

Enhanced the VF's check mac link implementation to provide accurate
link rate information for newly supported Amber-Lite NICs VF.

Signed-off-by: Zaiyu Wang <zaiyuwang@trustnetic.com>
---
 drivers/net/txgbe/base/txgbe_regs.h |  5 +++
 drivers/net/txgbe/base/txgbe_vf.c   | 48 +++++++++++++++++++++--------
 2 files changed, 40 insertions(+), 13 deletions(-)

diff --git a/drivers/net/txgbe/base/txgbe_regs.h b/drivers/net/txgbe/base/txgbe_regs.h
index 638404bdff..95c585a025 100644
--- a/drivers/net/txgbe/base/txgbe_regs.h
+++ b/drivers/net/txgbe/base/txgbe_regs.h
@@ -1305,6 +1305,11 @@ enum txgbe_5tuple_protocol {
 #define     TXGBE_VFSTATUS_BW_10G       LS(0x1, 1, 0x7)
 #define     TXGBE_VFSTATUS_BW_1G        LS(0x2, 1, 0x7)
 #define     TXGBE_VFSTATUS_BW_100M      LS(0x4, 1, 0x7)
+#define   TXGBE_VFSTATUS_BW_MASK_AML    MS(1, 0xF)
+#define     TXGBE_VFSTATUS_BW_AML_50G   LS(0x1, 1, 0xF)
+#define     TXGBE_VFSTATUS_BW_AML_40G   LS(0x2, 1, 0xF)
+#define     TXGBE_VFSTATUS_BW_AML_25G   LS(0x4, 1, 0xF)
+#define     TXGBE_VFSTATUS_BW_AML_10G   LS(0x8, 1, 0xF)
 #define   TXGBE_VFSTATUS_BUSY           MS(4, 0x1)
 #define   TXGBE_VFSTATUS_LANID          MS(8, 0x1)
 #define TXGBE_VFRST                     0x000008
diff --git a/drivers/net/txgbe/base/txgbe_vf.c b/drivers/net/txgbe/base/txgbe_vf.c
index efa32ca10a..bfaac3bfa4 100644
--- a/drivers/net/txgbe/base/txgbe_vf.c
+++ b/drivers/net/txgbe/base/txgbe_vf.c
@@ -492,24 +492,46 @@ s32 txgbe_check_mac_link_vf(struct txgbe_hw *hw, u32 *speed,
 	/* for SFP+ modules and DA cables it can take up to 500usecs
 	 * before the link status is correct
 	 */
-	if (mac->type == txgbe_mac_sp_vf && wait_to_complete) {
+	if ((mac->type == txgbe_mac_sp_vf ||
+	     mac->type == txgbe_mac_aml_vf) && wait_to_complete) {
 		if (po32m(hw, TXGBE_VFSTATUS, TXGBE_VFSTATUS_UP,
 			0, NULL, 5, 100))
 			goto out;
 	}
 
-	switch (links_reg & TXGBE_VFSTATUS_BW_MASK) {
-	case TXGBE_VFSTATUS_BW_10G:
-		*speed = TXGBE_LINK_SPEED_10GB_FULL;
-		break;
-	case TXGBE_VFSTATUS_BW_1G:
-		*speed = TXGBE_LINK_SPEED_1GB_FULL;
-		break;
-	case TXGBE_VFSTATUS_BW_100M:
-		*speed = TXGBE_LINK_SPEED_100M_FULL;
-		break;
-	default:
-		*speed = TXGBE_LINK_SPEED_UNKNOWN;
+	if (hw->mac.type == txgbe_mac_sp_vf) {
+		if (hw->device_id == TXGBE_DEV_ID_SP1000_VF ||
+		    hw->device_id == TXGBE_DEV_ID_WX1820_VF)
+			switch (links_reg & TXGBE_VFSTATUS_BW_MASK) {
+			case TXGBE_VFSTATUS_BW_10G:
+				*speed = TXGBE_LINK_SPEED_10GB_FULL;
+				break;
+			case TXGBE_VFSTATUS_BW_1G:
+				*speed = TXGBE_LINK_SPEED_1GB_FULL;
+				break;
+			case TXGBE_VFSTATUS_BW_100M:
+				*speed = TXGBE_LINK_SPEED_100M_FULL;
+				break;
+			default:
+				*speed = TXGBE_LINK_SPEED_UNKNOWN;
+			}
+	} else {
+		switch (links_reg & TXGBE_VFSTATUS_BW_MASK_AML) {
+		case TXGBE_VFSTATUS_BW_AML_10G:
+			*speed = TXGBE_LINK_SPEED_10GB_FULL;
+			break;
+		case TXGBE_VFSTATUS_BW_AML_25G:
+			*speed = TXGBE_LINK_SPEED_25GB_FULL;
+			break;
+		case TXGBE_VFSTATUS_BW_AML_40G:
+			*speed = TXGBE_LINK_SPEED_40GB_FULL;
+			break;
+		case TXGBE_VFSTATUS_BW_AML_50G:
+			*speed = TXGBE_LINK_SPEED_50GB_FULL;
+			break;
+		default:
+			*speed = TXGBE_LINK_SPEED_UNKNOWN;
+		}
 	}
 
 	if (no_pflink_check) {
-- 
2.21.0.windows.1