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[SCSI] scsi_transport_iscsi: Add support to set CHAP entries

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For offload iSCSI like qla4xxx, CHAP entries are stored in adapter's
flash.
This patch adds support to add/update CHAP entries in adapter's flash
using iscsi tools, like Open-iSCSI.

Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Adheer Chandravanshi
2013-09-17 07:54:48 -04:00
committed by James Bottomley
parent b1d0b63f99
commit 3af142fea7
3 changed files with 44 additions and 0 deletions
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26
drivers/scsi/scsi_transport_iscsi.c
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@@ -2744,6 +2744,28 @@ exit_get_chap:
return err;
}
static int iscsi_set_chap(struct iscsi_transport *transport,
struct iscsi_uevent *ev, uint32_t len)
{
char *data = (char *)ev + sizeof(*ev);
struct Scsi_Host *shost;
int err = 0;
if (!transport->set_chap)
return -ENOSYS;
shost = scsi_host_lookup(ev->u.set_path.host_no);
if (!shost) {
pr_err("%s could not find host no %u\n",
__func__, ev->u.set_path.host_no);
return -ENODEV;
}
err = transport->set_chap(shost, data, len);
scsi_host_put(shost);
return err;
}
static int iscsi_delete_chap(struct iscsi_transport *transport,
struct iscsi_uevent *ev)
{
@@ -3234,6 +3256,10 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
case ISCSI_UEVENT_LOGOUT_FLASHNODE_SID:
err = iscsi_logout_flashnode_sid(transport, ev);
break;
case ISCSI_UEVENT_SET_CHAP:
err = iscsi_set_chap(transport, ev,
nlmsg_attrlen(nlh, sizeof(*ev)));
break;
default:
err = -ENOSYS;
break;