1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 398fb5ca0fe2..d72c2b46963c 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -2418,3 +2418,58 @@ err:
 	spin_unlock_bh(&adapter->mcc_lock);
 	return status;
 }
+
+int be_cmd_get_acpi_wol_cap(struct be_adapter *adapter)
+{
+	struct be_mcc_wrb *wrb;
+	struct be_cmd_req_acpi_wol_magic_config_v1 *req;
+	int status;
+	int payload_len = sizeof(*req);
+	struct be_dma_mem cmd;
+
+	memset(&cmd, 0, sizeof(struct be_dma_mem));
+	cmd.size = sizeof(struct be_cmd_resp_acpi_wol_magic_config_v1);
+	cmd.va = pci_alloc_consistent(adapter->pdev, cmd.size,
+					       &cmd.dma);
+	if (!cmd.va) {
+		dev_err(&adapter->pdev->dev,
+				"Memory allocation failure\n");
+		return -ENOMEM;
+	}
+
+	if (mutex_lock_interruptible(&adapter->mbox_lock))
+		return -1;
+
+	wrb = wrb_from_mbox(adapter);
+	if (!wrb) {
+		status = -EBUSY;
+		goto err;
+	}
+
+	req = cmd.va;
+
+	be_wrb_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ETH,
+			       OPCODE_ETH_ACPI_WOL_MAGIC_CONFIG,
+			       payload_len, wrb, &cmd);
+
+	req->hdr.version = 1;
+	req->query_options = BE_GET_WOL_CAP;
+
+	status = be_mbox_notify_wait(adapter);
+	if (!status) {
+		struct be_cmd_resp_acpi_wol_magic_config_v1 *resp;
+		resp = (struct be_cmd_resp_acpi_wol_magic_config_v1 *) cmd.va;
+
+		/* the command could succeed misleadingly on old f/w
+		 * which is not aware of the V1 version. fake an error. */
+		if (resp->hdr.response_length < payload_len) {
+			status = -1;
+			goto err;
+		}
+		adapter->wol_cap = resp->wol_settings;
+	}
+err:
+	mutex_unlock(&adapter->mbox_lock);
+	pci_free_consistent(adapter->pdev, cmd.size, cmd.va, cmd.dma);
+	return status;
+}