diff options
| -rw-r--r-- | drivers/scsi/scsi_transport_iscsi.c | 29 | ||||
| -rw-r--r-- | include/scsi/iscsi_if.h | 6 | ||||
| -rw-r--r-- | include/scsi/scsi_transport_iscsi.h | 3 |
3 files changed, 37 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 59287601bd4..3fd2da451fe 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; } diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h index fba21174372..3d0372e30ca 100644 --- a/include/scsi/iscsi_if.h +++ b/include/scsi/iscsi_if.h @@ -48,6 +48,7 @@ enum iscsi_uevent_e { ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT = UEVENT_BASE + 14, ISCSI_UEVENT_TGT_DSCVR = UEVENT_BASE + 15, + ISCSI_UEVENT_SET_HOST_PARAM = UEVENT_BASE + 16, /* up events */ ISCSI_KEVENT_RECV_PDU = KEVENT_BASE + 1, @@ -136,6 +137,11 @@ struct iscsi_uevent { */ uint32_t enable; } tgt_dscvr; + struct msg_set_host_param { + uint32_t host_no; + uint32_t param; /* enum iscsi_host_param */ + uint32_t len; + } set_host_param; } u; union { /* messages k -> u */ diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index 902e69f0272..1ac450b0690 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -108,6 +108,9 @@ struct iscsi_transport { enum iscsi_param param, char *buf); int (*get_host_param) (struct Scsi_Host *shost, enum iscsi_host_param param, char *buf); + int (*set_host_param) (struct Scsi_Host *shost, + enum iscsi_host_param param, char *buf, + int buflen); int (*send_pdu) (struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, char *data, uint32_t data_size); void (*get_stats) (struct iscsi_cls_conn *conn, |