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Commit 52ee264b authored by Rakesh Ranjan's avatar Rakesh Ranjan Committed by David S. Miller
Browse files

cxgb3i: Fix a login over vlan issue 



Fix a target login issue, when parent interface is vlan and we are using cxgb3i sepecific
private ip address in '/etc/iscsi/ifaces/' iface file.

Acked-by: default avatarKaren Xie <kxie@chelsio.com>
Signed-off-by: default avatarRakesh Ranjan <rakesh@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f65d1f08

drivers/scsi/cxgb3i/cxgb3i_offload.c

+33 −1
Original line number Diff line number Diff line
@@ -1440,6 +1440,10 @@ void cxgb3i_c3cn_release(struct s3_conn *c3cn) 
static int is_cxgb3_dev(struct net_device *dev)

{

	struct cxgb3i_sdev_data *cdata;

	struct net_device *ndev = dev;



	if (dev->priv_flags && IFF_802_1Q_VLAN)

		ndev = vlan_dev_real_dev(dev);



	write_lock(&cdata_rwlock);

	list_for_each_entry(cdata, &cdata_list, list) {
@@ -1447,7 +1451,7 @@ static int is_cxgb3_dev(struct net_device *dev) 
		int i;



		for (i = 0; i < ports->nports; i++)

			if (dev == ports->lldevs[i]) {

			if (ndev == ports->lldevs[i]) {

				write_unlock(&cdata_rwlock);

				return 1;

			}
@@ -1566,6 +1570,26 @@ static int initiate_act_open(struct s3_conn *c3cn, struct net_device *dev) 
	return -1;

}



/* *

 * cxgb3i_find_dev - find the interface associated with the given address

 * @ipaddr: ip address

 */

static struct net_device *

cxgb3i_find_dev(struct net_device *dev, __be32 ipaddr)

{

	struct flowi fl;

	int err;

	struct rtable *rt;



	memset(&fl, 0, sizeof(fl));

	fl.nl_u.ip4_u.daddr = ipaddr;



	err = ip_route_output_key(dev ? dev_net(dev) : &init_net, &rt, &fl);

	if (!err)

		return (&rt->u.dst)->dev;



	return NULL;

}



/**

 * cxgb3i_c3cn_connect - initiates an iscsi tcp connection to a given address
@@ -1581,6 +1605,7 @@ int cxgb3i_c3cn_connect(struct net_device *dev, struct s3_conn *c3cn, 
	struct cxgb3i_sdev_data *cdata;

	struct t3cdev *cdev;

	__be32 sipv4;

	struct net_device *dstdev;

	int err;



	c3cn_conn_debug("c3cn 0x%p, dev 0x%p.\n", c3cn, dev);
@@ -1591,6 +1616,13 @@ int cxgb3i_c3cn_connect(struct net_device *dev, struct s3_conn *c3cn, 
	c3cn->daddr.sin_port = usin->sin_port;

	c3cn->daddr.sin_addr.s_addr = usin->sin_addr.s_addr;



	dstdev = cxgb3i_find_dev(dev, usin->sin_addr.s_addr);

	if (!dstdev || !is_cxgb3_dev(dstdev))

		return -ENETUNREACH;



	if (dstdev->priv_flags & IFF_802_1Q_VLAN)

		dev = dstdev;



	rt = find_route(dev, c3cn->saddr.sin_addr.s_addr,

			c3cn->daddr.sin_addr.s_addr,

			c3cn->saddr.sin_port,