s2io: Fix enabling VLAN tag stripping at driver initialization

VLAN doesn't work except if you'd opened the interface in promiscuous
mode before. This happens because VLAN tag stripping is not correctly
marked as enabled at device startup

Also, the vlan_strip_flag field was moved to the private network
structure.

Signed-off-by: Breno Leitao <[e-mail]>
Signed-off-by: Jay Vosburgh <[e-mail]>
Signed-off-by: Jeff Garzik <[e-mail]>

drivers/net/s2io.c

···
 				flags[i]);
 }
 
-/* A flag indicating whether 'RX_PA_CFG_STRIP_VLAN_TAG' bit is set or not */
-static int vlan_strip_flag;
-
 /* Unregister the vlan */
 static void s2io_vlan_rx_kill_vid(struct net_device *dev, unsigned long vid)
 {
···
 		val64 = readq(&bar0->rx_pa_cfg);
 		val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG;
 		writeq(val64, &bar0->rx_pa_cfg);
-		vlan_strip_flag = 0;
+		nic->vlan_strip_flag = 0;
 	}
 
 	/*
···
 			val64 = readq(&bar0->rx_pa_cfg);
 			val64 &= ~RX_PA_CFG_STRIP_VLAN_TAG;
 			writeq(val64, &bar0->rx_pa_cfg);
-			vlan_strip_flag = 0;
+			sp->vlan_strip_flag = 0;
 		}
 
 		val64 = readq(&bar0->mac_cfg);
···
 			val64 = readq(&bar0->rx_pa_cfg);
 			val64 |= RX_PA_CFG_STRIP_VLAN_TAG;
 			writeq(val64, &bar0->rx_pa_cfg);
-			vlan_strip_flag = 1;
+			sp->vlan_strip_flag = 1;
 		}
 
 		val64 = readq(&bar0->mac_cfg);
···
 	/* Initialize device name */
 	sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name);
 
+	if (vlan_tag_strip)
+		sp->vlan_strip_flag = 1;
+	else
+		sp->vlan_strip_flag = 0;
+
 	/*
 	 * Make Link state as off at this point, when the Link change
 	 * interrupt comes the state will be automatically changed to
···
 		 * If vlan stripping is disabled and the frame is VLAN tagged,
 		 * shift the offset by the VLAN header size bytes.
 		 */
-		if ((!vlan_strip_flag) &&
+		if ((!sp->vlan_strip_flag) &&
 			(rxdp->Control_1 & RXD_FRAME_VLAN_TAG))
 			ip_off += HEADER_VLAN_SIZE;
 	} else {
···
 
 	skb->protocol = eth_type_trans(skb, dev);
 	if (sp->vlgrp && vlan_tag
-		&& (vlan_strip_flag)) {
+		&& (sp->vlan_strip_flag)) {
 		/* Queueing the vlan frame to the upper layer */
 		if (sp->config.napi)
 			vlan_hwaccel_receive_skb(skb, sp->vlgrp, vlan_tag);

drivers/net/s2io.h

···
 	int task_flag;
 	unsigned long long start_time;
 	struct vlan_group *vlgrp;
+	int vlan_strip_flag;
 #define MSIX_FLG                0xA5
 	int num_entries;
 	struct msix_entry *entries;