svn commit: r358860 - head/sys/dev/cxgbe/tom

[Navdeep Parhar]

Author: np
Date: Tue Mar 10 21:49:56 2020
New Revision: 358860
URL: https://svnweb.freebsd.org/changeset/base/358860

Log:
  cxgbe/t4_tom: The MSS in a FLOWC work request must not be 0.
  
  Submitted by:	jhb@
  MFC after:	1 week
  Sponsored by:	Chelsio Communications

Modified:
  head/sys/dev/cxgbe/tom/t4_cpl_io.c

Modified: head/sys/dev/cxgbe/tom/t4_cpl_io.c
==============================================================================
--- head/sys/dev/cxgbe/tom/t4_cpl_io.c	Tue Mar 10 21:44:20 2020	(r358859)
+++ head/sys/dev/cxgbe/tom/t4_cpl_io.c	Tue Mar 10 21:49:56 2020	(r358860)
@@ -135,11 +135,12 @@ send_flowc_wr(struct toepcb *toep, struct tcpcb *tp)
 	FLOWC_PARAM(PORT, pi->tx_chan);
 	FLOWC_PARAM(IQID, toep->ofld_rxq->iq.abs_id);
 	FLOWC_PARAM(SNDBUF, toep->params.sndbuf);
-	FLOWC_PARAM(MSS, toep->params.emss);
 	if (tp) {
+		FLOWC_PARAM(MSS, toep->params.emss);
 		FLOWC_PARAM(SNDNXT, tp->snd_nxt);
 		FLOWC_PARAM(RCVNXT, tp->rcv_nxt);
-	}
+	} else
+		FLOWC_PARAM(MSS, 512);
 	CTR6(KTR_CXGBE,
 	    "%s: tid %u, mss %u, sndbuf %u, snd_nxt 0x%x, rcv_nxt 0x%x",
 	    __func__, toep->tid, toep->params.emss, toep->params.sndbuf,