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path: root/drivers/scsi/libiscsi_tcp.c
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Diffstat (limited to 'drivers/scsi/libiscsi_tcp.c')
-rw-r--r--drivers/scsi/libiscsi_tcp.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c
index 5715a3d..c4996b0 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)
{
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