diff --git a/fs/smb/client/smbdirect.c b/fs/smb/client/smbdirect.c
index b1548269c308..07f71a9481a3 100644
--- a/fs/smb/client/smbdirect.c
+++ b/fs/smb/client/smbdirect.c
@@ -86,8 +86,23 @@ int smbd_send_credit_target = 255;
 /* The maximum single message size can be sent to remote peer */
 int smbd_max_send_size = 1364;
 
-/*  The maximum fragmented upper-layer payload receive size supported */
-int smbd_max_fragmented_recv_size = 1024 * 1024;
+/*
+ * The maximum fragmented upper-layer payload receive size supported
+ *
+ * Assume max_payload_per_credit is
+ * smbd_max_receive_size - 24 = 1340
+ *
+ * The maximum number would be
+ * smbd_receive_credit_max * max_payload_per_credit
+ *
+ *                       1340 * 255 = 341700 (0x536C4)
+ *
+ * The minimum value from the spec is 131072 (0x20000)
+ *
+ * For now we use the logic we used in ksmbd before:
+ *                 (1364 * 255) / 2 = 173910 (0x2A756)
+ */
+int smbd_max_fragmented_recv_size = (1364 * 255) / 2;
 
 /*  The maximum single-message size which can be received */
 int smbd_max_receive_size = 1364;