net: hns: Add ACPI support to check SFP present

[sfrench/cifs-2.6.git] / drivers / net / ethernet / hisilicon / hns / hns_dsaf_misc.c

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
index a2c22d084ce90cb03337ee09e4b4f1b723046ef4..e13aa064a8e943da7c9538e88bc425f299e944ca 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
@@ -461,6 +461,32 @@ int hns_mac_get_sfp_prsnt(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
        return 0;
 }
 
+int hns_mac_get_sfp_prsnt_acpi(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
+{
+       union acpi_object *obj;
+       union acpi_object obj_args, argv4;
+
+       obj_args.integer.type = ACPI_TYPE_INTEGER;
+       obj_args.integer.value = mac_cb->mac_id;
+
+       argv4.type = ACPI_TYPE_PACKAGE,
+       argv4.package.count = 1,
+       argv4.package.elements = &obj_args,
+
+       obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev),
+                               hns_dsaf_acpi_dsm_uuid, 0,
+                               HNS_OP_GET_SFP_STAT_FUNC, &argv4);
+
+       if (!obj || obj->type != ACPI_TYPE_INTEGER)
+               return -ENODEV;
+
+       *sfp_prsnt = obj->integer.value;
+
+       ACPI_FREE(obj);
+
+       return 0;
+}
+
 /**
  * hns_mac_config_sds_loopback - set loop back for serdes
  * @mac_cb: mac control block
@@ -592,7 +618,7 @@ struct dsaf_misc_op *hns_misc_op_get(struct dsaf_device *dsaf_dev)
                misc_op->hns_dsaf_roce_srst = hns_dsaf_roce_srst_acpi;
 
                misc_op->get_phy_if = hns_mac_get_phy_if_acpi;
-               misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt;
+               misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt_acpi;
 
                misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback_acpi;
        } else {