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scsi: libcxgbi: update route finding logic 

To support vlan and bridge devices first find route using ifindex 0, if
route is not found through net device associated with input scsi host then
find route using ifindex of net device.

Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Varun Prakash 2019-04-14 20:23:31 +05:30 committed by Martin K. Petersen
parent ffcd686b91
commit 74dea0bed7
1 changed files with 8 additions and 5 deletions
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13
drivers/scsi/cxgbi/libcxgbi.c
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@ -2562,13 +2562,9 @@ struct iscsi_endpoint *cxgbi_ep_connect(struct Scsi_Host *shost,
pr_info("shost 0x%p, priv NULL.\n", shost);
goto err_out;
}
rtnl_lock();
if (!vlan_uses_dev(hba->ndev))
ifindex = hba->ndev->ifindex;
rtnl_unlock();
}
check_route:
if (dst_addr->sa_family == AF_INET) {
csk = cxgbi_check_route(dst_addr, ifindex);
#if IS_ENABLED(CONFIG_IPV6)
@ -2589,6 +2585,13 @@ struct iscsi_endpoint *cxgbi_ep_connect(struct Scsi_Host *shost,
if (!hba)
hba = csk->cdev->hbas[csk->port_id];
else if (hba != csk->cdev->hbas[csk->port_id]) {
if (ifindex != hba->ndev->ifindex) {
cxgbi_sock_put(csk);
cxgbi_sock_closed(csk);
ifindex = hba->ndev->ifindex;
goto check_route;
}
pr_info("Could not connect through requested host %u"
"hba 0x%p != 0x%p (%u).\n",
shost->host_no, hba,