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| author | Mike Christie <michaelc@cs.wisc.edu> | 2007-05-30 12:57:11 -0500 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.(none)> | 2007-06-01 12:51:03 -0400 |
| commit | 1d9bf13a9cf91f8faf221e98a64dd1157bcf5fa9 (patch) | |
| tree | 25b38eae693498c3085bd9727785c5eed2f1d5f1 /drivers/scsi/scsi_transport_iscsi.c | |
| parent | 2174a04ee7d8304a270de183fbc58b36dd05b395 (diff) | |
| download | lwn-1d9bf13a9cf91f8faf221e98a64dd1157bcf5fa9.tar.gz lwn-1d9bf13a9cf91f8faf221e98a64dd1157bcf5fa9.zip | |
[SCSI] iscsi class: add iscsi host set param event
The iscsi class uses the set_param event to set session
and connection params. This patch adds a set_host_param
so we can set host level values.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/scsi_transport_iscsi.c')
| -rw-r--r-- | drivers/scsi/scsi_transport_iscsi.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 59287601bd41..3fd2da451fe1 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -968,6 +968,30 @@ iscsi_tgt_dscvr(struct iscsi_transport *transport, } static int +iscsi_set_host_param(struct iscsi_transport *transport, + struct iscsi_uevent *ev) +{ + char *data = (char*)ev + sizeof(*ev); + struct Scsi_Host *shost; + int err; + + if (!transport->set_host_param) + return -ENOSYS; + + shost = scsi_host_lookup(ev->u.set_host_param.host_no); + if (IS_ERR(shost)) { + printk(KERN_ERR "set_host_param could not find host no %u\n", + ev->u.set_host_param.host_no); + return -ENODEV; + } + + err = transport->set_host_param(shost, ev->u.set_host_param.param, + data, ev->u.set_host_param.len); + scsi_host_put(shost); + return err; +} + +static int iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh) { int err = 0; @@ -1058,8 +1082,11 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh) case ISCSI_UEVENT_TGT_DSCVR: err = iscsi_tgt_dscvr(transport, ev); break; + case ISCSI_UEVENT_SET_HOST_PARAM: + err = iscsi_set_host_param(transport, ev); + break; default: - err = -EINVAL; + err = -ENOSYS; break; } |