net/axgbe: add support for V4000 Kracken2e

add device ID's for Kracken2e to enable
driver to support this device.

Signed-off-by: Vinay Govindaiah <[email protected]>
Acked-by: Selwin Sebastian <[email protected]>

Author: vigovind

drivers/net/axgbe/axgbe_common.h

@@ -905,6 +905,8 @@
 #define PCS_V2_RV_WINDOW_SELECT		0x1064
 #define PCS_V2_YC_WINDOW_DEF		0x18060
 #define PCS_V2_YC_WINDOW_SELECT		0x18064
+#define PCS_KR_WINDOW_SELECT            0x8080
+#define PCS_KR_WINDOW_DEF               0x8060
 
 /* PCS register entry bit positions and sizes */
 #define PCS_V2_WINDOW_DEF_OFFSET_INDEX	6

drivers/net/axgbe/axgbe_ethdev.c

@@ -185,6 +185,7 @@ static const struct axgbe_xstats axgbe_xstats_strings[] = {
 
 #define	Fam17h	0x17
 #define	Fam19h	0x19
+#define	Fam1Ah	0x1A
 
 #define	CPUID_VENDOR_AuthenticAMD_ebx	0x68747541
 #define	CPUID_VENDOR_AuthenticAMD_ecx	0x444d4163
@@ -2252,8 +2253,8 @@ eth_axgbe_dev_init(struct rte_eth_dev *eth_dev)
 	__cpuid(0x0, eax, ebx, ecx, edx);
 
 	if (ebx == CPUID_VENDOR_AuthenticAMD_ebx &&
-		edx == CPUID_VENDOR_AuthenticAMD_edx &&
-		ecx == CPUID_VENDOR_AuthenticAMD_ecx) {
+	    edx == CPUID_VENDOR_AuthenticAMD_edx &&
+	    ecx == CPUID_VENDOR_AuthenticAMD_ecx) {
 		int unknown_cpu = 0;
 		eax = 0, ebx = 0, ecx = 0, edx = 0;
 
@@ -2264,33 +2265,48 @@ eth_axgbe_dev_init(struct rte_eth_dev *eth_dev)
 
 		switch (cpu_family) {
 		case Fam17h:
-		/* V1000/R1000 */
-		if (cpu_model >= 0x10 && cpu_model <= 0x1F) {
-			pdata->xpcs_window_def_reg = PCS_V2_RV_WINDOW_DEF;
-			pdata->xpcs_window_sel_reg = PCS_V2_RV_WINDOW_SELECT;
-		/* EPYC 3000 */
-		} else if (cpu_model >= 0x01 && cpu_model <= 0x0F) {
-			pdata->xpcs_window_def_reg = PCS_V2_WINDOW_DEF;
-			pdata->xpcs_window_sel_reg = PCS_V2_WINDOW_SELECT;
-		} else {
-			unknown_cpu = 1;
-		}
-		break;
+			/* V1000/R1000 */
+			if (cpu_model >= 0x10 && cpu_model <= 0x1F) {
+				pdata->xpcs_window_def_reg = PCS_V2_RV_WINDOW_DEF;
+				pdata->xpcs_window_sel_reg = PCS_V2_RV_WINDOW_SELECT;
+				/* EPYC 3000 */
+			} else if (cpu_model >= 0x01 && cpu_model <= 0x0F) {
+				pdata->xpcs_window_def_reg = PCS_V2_WINDOW_DEF;
+				pdata->xpcs_window_sel_reg = PCS_V2_WINDOW_SELECT;
+			} else {
+				unknown_cpu = 1;
+			}
+			break;
 		case Fam19h:
-		/* V3000 (Yellow Carp) */
-		if (cpu_model >= 0x44 && cpu_model <= 0x47) {
-			pdata->xpcs_window_def_reg = PCS_V2_YC_WINDOW_DEF;
-			pdata->xpcs_window_sel_reg = PCS_V2_YC_WINDOW_SELECT;
-
-			/* Yellow Carp devices do not need cdr workaround */
-			pdata->vdata->an_cdr_workaround = 0;
-
-			/* Yellow Carp devices do not need rrc */
-			pdata->vdata->enable_rrc = 0;
-		} else {
-			unknown_cpu = 1;
-		}
-		break;
+			/* V3000 (Yellow Carp) */
+			if (cpu_model >= 0x44 && cpu_model <= 0x47) {
+				pdata->xpcs_window_def_reg = PCS_V2_YC_WINDOW_DEF;
+				pdata->xpcs_window_sel_reg = PCS_V2_YC_WINDOW_SELECT;
+
+				/* Yellow Carp devices do not need cdr workaround */
+				pdata->vdata->an_cdr_workaround = 0;
+
+				/* Yellow Carp devices do not need rrc */
+				pdata->vdata->enable_rrc = 0;
+			} else {
+				unknown_cpu = 1;
+			}
+			break;
+		case Fam1Ah:
+			/* V4000 (krackan2e) */
+			if (cpu_model == 0x68) {
+				pdata->xpcs_window_def_reg = PCS_KR_WINDOW_DEF;
+				pdata->xpcs_window_sel_reg = PCS_KR_WINDOW_SELECT;
+
+				/* V4000-Krkan2e devices do not need cdr workaround */
+				pdata->vdata->an_cdr_workaround = 0;
+
+				/* V4000-Krkan2e devices do not need rrc */
+				pdata->vdata->enable_rrc = 0;
+			} else {
+				unknown_cpu = 1;
+			}
+			break;
 		default:
 			unknown_cpu = 1;
 			break;