sfc: Support extraction of CAPABILITIES from GET_BOARD_CFG response.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

drivers/net/ethernet/sfc/mcdi.c

@@ -678,7 +678,7 @@ fail:
 }
 
 int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
-			   u16 *fw_subtype_list)
+			   u16 *fw_subtype_list, u32 *capabilities)
 {
 	uint8_t outbuf[MC_CMD_GET_BOARD_CFG_OUT_LENMIN];
 	size_t outlen;
@@ -708,6 +708,14 @@ int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
 		       outbuf + MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_OFST,
 		       MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_MINNUM *
 		       sizeof(fw_subtype_list[0]));
+	if (capabilities) {
+		if (port_num)
+			*capabilities = MCDI_DWORD(outbuf,
+					GET_BOARD_CFG_OUT_CAPABILITIES_PORT1);
+		else
+			*capabilities = MCDI_DWORD(outbuf,
+					GET_BOARD_CFG_OUT_CAPABILITIES_PORT0);
+	}
 
 	return 0;
 

drivers/net/ethernet/sfc/mcdi.h

@@ -97,7 +97,7 @@ extern void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len);
 extern int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating,
 			       bool *was_attached_out);
 extern int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
-				  u16 *fw_subtype_list);
+				  u16 *fw_subtype_list, u32 *capabilities);
 extern int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart,
 			     u32 dest_evq);
 extern int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out);

drivers/net/ethernet/sfc/mtd.c

@@ -631,7 +631,7 @@ static int siena_mtd_get_fw_subtypes(struct efx_nic *efx,
 	uint16_t fw_subtype_list[MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_MINNUM];
 	int rc;
 
-	rc = efx_mcdi_get_board_cfg(efx, NULL, fw_subtype_list);
+	rc = efx_mcdi_get_board_cfg(efx, NULL, fw_subtype_list, NULL);
 	if (rc)
 		return rc;
 

drivers/net/ethernet/sfc/siena.c

@@ -216,7 +216,7 @@ static int siena_reset_hw(struct efx_nic *efx, enum reset_type method)
 
 static int siena_probe_nvconfig(struct efx_nic *efx)
 {
-	return efx_mcdi_get_board_cfg(efx, efx->net_dev->perm_addr, NULL);
+	return efx_mcdi_get_board_cfg(efx, efx->net_dev->perm_addr, NULL, NULL);
 }
 
 static int siena_probe_nic(struct efx_nic *efx)