diff options
Diffstat (limited to 'drivers/scsi/libiscsi_tcp.c')
| -rw-r--r-- | drivers/scsi/libiscsi_tcp.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c index 5715a3d0a3d..c4996b08199 100644 --- a/drivers/scsi/libiscsi_tcp.c +++ b/drivers/scsi/libiscsi_tcp.c @@ -1170,6 +1170,24 @@ void iscsi_tcp_r2tpool_free(struct iscsi_session *session) } EXPORT_SYMBOL_GPL(iscsi_tcp_r2tpool_free); +int iscsi_tcp_set_max_r2t(struct iscsi_conn *conn, char *buf) +{ + struct iscsi_session *session = conn->session; + unsigned short r2ts = 0; + + sscanf(buf, "%hu", &r2ts); + if (session->max_r2t == r2ts) + return 0; + + if (!r2ts || !is_power_of_2(r2ts)) + return -EINVAL; + + session->max_r2t = r2ts; + iscsi_tcp_r2tpool_free(session); + return iscsi_tcp_r2tpool_alloc(session); +} +EXPORT_SYMBOL_GPL(iscsi_tcp_set_max_r2t); + void iscsi_tcp_conn_get_stats(struct iscsi_cls_conn *cls_conn, struct iscsi_stats *stats) { |