Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761567AbZLJVDz (ORCPT ); Thu, 10 Dec 2009 16:03:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758370AbZLJVDy (ORCPT ); Thu, 10 Dec 2009 16:03:54 -0500 Received: from stargate.chelsio.com ([67.207.112.58]:29242 "EHLO stargate.chelsio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757045AbZLJVDx (ORCPT ); Thu, 10 Dec 2009 16:03:53 -0500 From: kxie@chelsio.com Message-Id: <200912102103.nBAL3mkn001507@localhost.localdomain> Date: Thu, 10 Dec 2009 13:03:48 -0800 To: netdev@vger.kernel.org, linux-scsi@vger.kernel.org, open-iscsi@googlegroups.com Subject: [PATCH 1/1 v2] cxgb3i: Fix a login over vlan issue Cc: linux-kernel@vger.kernel.org, rakesh@chelsio.com, kxie@chelsio.com, davem@davemloft.net, James.Bottomley@HansenPartnership.com, michaelc@cs.wisc.edu User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2847 Lines: 93 [PATCH 1/1 v2] cxgb3i: Fix a login over vlan issue From: Rakesh Ranjan 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: Karen Xie Signed-off-by: Rakesh Ranjan --- drivers/scsi/cxgb3i/cxgb3i_offload.c | 34 +++++++++++++++++++++++++++++++++- 1 files changed, 33 insertions(+), 1 deletions(-) diff --git a/drivers/scsi/cxgb3i/cxgb3i_offload.c b/drivers/scsi/cxgb3i/cxgb3i_offload.c index 26ffdcd..15a00e8 100644 --- a/drivers/scsi/cxgb3i/cxgb3i_offload.c +++ b/drivers/scsi/cxgb3i/cxgb3i_offload.c @@ -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 @@ out_err: return -EINVAL; } +/** + * 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, -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/