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Index: sys/dev/cxgbe/cxgbei/cxgbei.c
===================================================================
--- sys/dev/cxgbe/cxgbei/cxgbei.c
+++ sys/dev/cxgbe/cxgbei/cxgbei.c
@@ -315,13 +315,13 @@
tp = intotcpcb(inp);
MPASS(icp->icp_seq == tp->rcv_nxt);
- MPASS(tp->rcv_wnd >= pdu_len);
tp->rcv_nxt += pdu_len;
- tp->rcv_wnd -= pdu_len;
tp->t_rcvtime = ticks;
- /* update rx credits */
- t4_rcvd(&toep->td->tod, tp); /* XXX: sc->tom_softc.tod */
+ /*
+ * Don't update the window size or return credits since RX
+ * flow control is disabled.
+ */
so = inp->inp_socket;
sb = &so->so_rcv;
Index: sys/dev/cxgbe/cxgbei/icl_cxgbei.c
===================================================================
--- sys/dev/cxgbe/cxgbei/icl_cxgbei.c
+++ sys/dev/cxgbe/cxgbei/icl_cxgbei.c
@@ -591,6 +591,9 @@
t4_set_tcb_field(sc, toep->ctrlq, toep, W_TCB_ULP_TYPE,
V_TCB_ULP_TYPE(M_TCB_ULP_TYPE) | V_TCB_ULP_RAW(M_TCB_ULP_RAW), val,
0, 0);
+
+ val = V_TF_RX_FLOW_CONTROL_DISABLE(1ULL);
+ t4_set_tcb_field(sc, toep->ctrlq, toep, W_TCB_T_FLAGS, val, val, 0, 0);
}
/*

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