be2net: enable WOL by default if h/w supports it

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/emulex/benet/be.h

@@ -52,6 +52,10 @@
 #define OC_DEVICE_ID3		0xe220	/* Device id for Lancer cards */
 #define OC_DEVICE_ID4           0xe228   /* Device id for VF in Lancer */
 #define OC_DEVICE_ID5		0x720	/* Device Id for Skyhawk cards */
+#define OC_SUBSYS_DEVICE_ID1	0xE602
+#define OC_SUBSYS_DEVICE_ID2	0xE642
+#define OC_SUBSYS_DEVICE_ID3	0xE612
+#define OC_SUBSYS_DEVICE_ID4	0xE652
 
 static inline char *nic_name(struct pci_dev *pdev)
 {
@@ -365,7 +369,6 @@ struct be_adapter {
 	bool fw_timeout;
 	u32 port_num;
 	bool promiscuous;
-	bool wol;
 	u32 function_mode;
 	u32 function_caps;
 	u32 rx_fc;		/* Rx flow control */
@@ -386,6 +389,8 @@ struct be_adapter {
 	u32 sli_family;
 	u8 hba_port_num;
 	u16 pvid;
+	u8 wol_cap;
+	bool wol;
 };
 
 #define be_physfn(adapter) (!adapter->is_virtfn)
@@ -549,9 +554,28 @@ static inline bool be_error(struct be_adapter *adapter)
 	return adapter->eeh_err || adapter->ue_detected || adapter->fw_timeout;
 }
 
+static inline bool be_is_wol_excluded(struct be_adapter *adapter)
+{
+	struct pci_dev *pdev = adapter->pdev;
+
+	if (!be_physfn(adapter))
+		return true;
+
+	switch (pdev->subsystem_device) {
+	case OC_SUBSYS_DEVICE_ID1:
+	case OC_SUBSYS_DEVICE_ID2:
+	case OC_SUBSYS_DEVICE_ID3:
+	case OC_SUBSYS_DEVICE_ID4:
+		return true;
+	default:
+		return false;
+	}
+}
+
 extern void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
 		u16 num_popped);
 extern void be_link_status_update(struct be_adapter *adapter, u8 link_status);
 extern void be_parse_stats(struct be_adapter *adapter);
 extern int be_load_fw(struct be_adapter *adapter, u8 *func);
+extern bool be_is_wol_supported(struct be_adapter *adapter);
 #endif				/* BE_H */

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;
+}

drivers/net/ethernet/emulex/benet/be_cmds.h

@@ -1206,6 +1206,33 @@ struct be_cmd_req_acpi_wol_magic_config{
 	u8 rsvd2[2];
 } __packed;
 
+struct be_cmd_req_acpi_wol_magic_config_v1 {
+	struct be_cmd_req_hdr hdr;
+	u8 rsvd0[2];
+	u8 query_options;
+	u8 rsvd1[5];
+	u32 rsvd2[288];
+	u8 magic_mac[6];
+	u8 rsvd3[22];
+} __packed;
+
+struct be_cmd_resp_acpi_wol_magic_config_v1 {
+	struct be_cmd_resp_hdr hdr;
+	u8 rsvd0[2];
+	u8 wol_settings;
+	u8 rsvd1[5];
+	u32 rsvd2[295];
+} __packed;
+
+#define BE_GET_WOL_CAP			2
+
+#define BE_WOL_CAP			0x1
+#define BE_PME_D0_CAP			0x8
+#define BE_PME_D1_CAP			0x10
+#define BE_PME_D2_CAP			0x20
+#define BE_PME_D3HOT_CAP		0x40
+#define BE_PME_D3COLD_CAP		0x80
+
 /********************** LoopBack test *********************/
 struct be_cmd_req_loopback_test {
 	struct be_cmd_req_hdr hdr;
@@ -1590,4 +1617,5 @@ extern int be_cmd_get_mac_from_list(struct be_adapter *adapter, u32 domain,
 				bool *pmac_id_active, u32 *pmac_id, u8 *mac);
 extern int be_cmd_set_mac_list(struct be_adapter *adapter, u8 *mac_array,
 						u8 mac_count, u32 domain);
+extern int be_cmd_get_acpi_wol_cap(struct be_adapter *adapter);
 

drivers/net/ethernet/emulex/benet/be_ethtool.c

@@ -600,26 +600,16 @@ be_set_phys_id(struct net_device *netdev,
 	return 0;
 }
 
-static bool
-be_is_wol_supported(struct be_adapter *adapter)
-{
-	if (!be_physfn(adapter))
-		return false;
-	else
-		return true;
-}
 
 static void
 be_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 {
 	struct be_adapter *adapter = netdev_priv(netdev);
 
-	if (be_is_wol_supported(adapter))
-		wol->supported = WAKE_MAGIC;
-
-	if (adapter->wol)
-		wol->wolopts = WAKE_MAGIC;
-	else
+	if (be_is_wol_supported(adapter)) {
+		wol->supported |= WAKE_MAGIC;
+		wol->wolopts |= WAKE_MAGIC;
+	} else
 		wol->wolopts = 0;
 	memset(&wol->sopass, 0, sizeof(wol->sopass));
 }
@@ -630,9 +620,14 @@ be_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 	struct be_adapter *adapter = netdev_priv(netdev);
 
 	if (wol->wolopts & ~WAKE_MAGIC)
-		return -EINVAL;
+		return -EOPNOTSUPP;
 
-	if ((wol->wolopts & WAKE_MAGIC) && be_is_wol_supported(adapter))
+	if (!be_is_wol_supported(adapter)) {
+		dev_warn(&adapter->pdev->dev, "WOL not supported\n");
+		return -EOPNOTSUPP;
+	}
+
+	if (wol->wolopts & WAKE_MAGIC)
 		adapter->wol = true;
 	else
 		adapter->wol = false;

drivers/net/ethernet/emulex/benet/be_main.c

@@ -3244,6 +3244,12 @@ static void __devexit be_remove(struct pci_dev *pdev)
 	free_netdev(adapter->netdev);
 }
 
+bool be_is_wol_supported(struct be_adapter *adapter)
+{
+	return ((adapter->wol_cap & BE_WOL_CAP) &&
+		!be_is_wol_excluded(adapter)) ? true : false;
+}
+
 static int be_get_config(struct be_adapter *adapter)
 {
 	int status;
@@ -3262,6 +3268,17 @@ static int be_get_config(struct be_adapter *adapter)
 	if (status)
 		return status;
 
+	status = be_cmd_get_acpi_wol_cap(adapter);
+	if (status) {
+		/* in case of a failure to get wol capabillities
+		 * check the exclusion list to determine WOL capability */
+		if (!be_is_wol_excluded(adapter))
+			adapter->wol_cap |= BE_WOL_CAP;
+	}
+
+	if (be_is_wol_supported(adapter))
+		adapter->wol = true;
+
 	return 0;
 }