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[SCSI] libiscsi, iscsi_tcp, ib_iser : add sw iscsi host get/set params helpers

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iscsid and udev need to key off the hw address being
used so add some helpers for iser and iscsi tcp.

Also convert them

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Cc: Roland Dreier <rdreier@cisco.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Mike Christie
2007-05-30 12:57:12 -05:00
committed by James Bottomley
parent 1d9bf13a9c
commit 0801c242a3
4 changed files with 60 additions and 1 deletions
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40
drivers/scsi/libiscsi.c
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@ -1462,6 +1462,7 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session)
iscsi_pool_free(&session->cmdpool, (void**)session->cmds);
kfree(session->targetname);
kfree(session->hwaddress);
iscsi_destroy_session(cls_session);
scsi_host_put(shost);
@ -1990,6 +1991,45 @@ int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
}
EXPORT_SYMBOL_GPL(iscsi_conn_get_param);
int iscsi_host_get_param(struct Scsi_Host *shost, enum iscsi_host_param param,
char *buf)
{
struct iscsi_session *session = iscsi_hostdata(shost->hostdata);
int len;
switch (param) {
case ISCSI_HOST_PARAM_HWADDRESS:
if (!session->hwaddress)
len = sprintf(buf, "%s\n", "default");
else
len = sprintf(buf, "%s\n", session->hwaddress);
break;
default:
return -ENOSYS;
}
return len;
}
EXPORT_SYMBOL_GPL(iscsi_host_get_param);
int iscsi_host_set_param(struct Scsi_Host *shost, enum iscsi_host_param param,
char *buf, int buflen)
{
struct iscsi_session *session = iscsi_hostdata(shost->hostdata);
switch (param) {
case ISCSI_HOST_PARAM_HWADDRESS:
if (!session->hwaddress)
session->hwaddress = kstrdup(buf, GFP_KERNEL);
break;
default:
return -ENOSYS;
}
return 0;
}
EXPORT_SYMBOL_GPL(iscsi_host_set_param);
MODULE_AUTHOR("Mike Christie");
MODULE_DESCRIPTION("iSCSI library functions");
MODULE_LICENSE("GPL");