Module Name:    src
Committed By:   nonaka
Date:           Tue Jan 24 10:18:33 UTC 2017

Modified Files:
        src/sys/dev/pci: if_rtwn.c if_rtwnreg.h

Log Message:
rtwn(4): increase the number of tx queue required to clear the full mask.


To generate a diff of this commit:
cvs rdiff -u -r1.9 -r1.10 src/sys/dev/pci/if_rtwn.c
cvs rdiff -u -r1.2 -r1.3 src/sys/dev/pci/if_rtwnreg.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/dev/pci/if_rtwn.c
diff -u src/sys/dev/pci/if_rtwn.c:1.9 src/sys/dev/pci/if_rtwn.c:1.10
--- src/sys/dev/pci/if_rtwn.c:1.9	Thu Dec  8 01:12:01 2016
+++ src/sys/dev/pci/if_rtwn.c	Tue Jan 24 10:18:33 2017
@@ -1,4 +1,4 @@
-/*	$NetBSD: if_rtwn.c,v 1.9 2016/12/08 01:12:01 ozaki-r Exp $	*/
+/*	$NetBSD: if_rtwn.c,v 1.10 2017/01/24 10:18:33 nonaka Exp $	*/
 /*	$OpenBSD: if_rtwn.c,v 1.5 2015/06/14 08:02:47 stsp Exp $	*/
 #define	IEEE80211_NO_HT
 /*-
@@ -23,7 +23,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_rtwn.c,v 1.9 2016/12/08 01:12:01 ozaki-r Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_rtwn.c,v 1.10 2017/01/24 10:18:33 nonaka Exp $");
 
 #include <sys/param.h>
 #include <sys/sockio.h>
@@ -1989,7 +1989,7 @@ rtwn_tx(struct rtwn_softc *sc, struct mb
 	tx_ring->cur = (tx_ring->cur + 1) % RTWN_TX_LIST_COUNT;
 	tx_ring->queued++;
 
-	if (tx_ring->queued >= (RTWN_TX_LIST_COUNT - 1))
+	if (tx_ring->queued > RTWN_TX_LIST_HIMARK)
 		sc->qfullmsk |= (1 << qid);
 
 	/* Kick TX. */
@@ -2035,7 +2035,7 @@ rtwn_tx_done(struct rtwn_softc *sc, int 
 		tx_ring->queued--;
 	}
 
-	if (tx_ring->queued < (RTWN_TX_LIST_COUNT - 1))
+	if (tx_ring->queued < RTWN_TX_LIST_LOMARK)
 		sc->qfullmsk &= ~(1 << qid);
 }
 

Index: src/sys/dev/pci/if_rtwnreg.h
diff -u src/sys/dev/pci/if_rtwnreg.h:1.2 src/sys/dev/pci/if_rtwnreg.h:1.3
--- src/sys/dev/pci/if_rtwnreg.h:1.2	Fri Nov  6 14:22:17 2015
+++ src/sys/dev/pci/if_rtwnreg.h	Tue Jan 24 10:18:33 2017
@@ -1,4 +1,4 @@
-/*	$NetBSD: if_rtwnreg.h,v 1.2 2015/11/06 14:22:17 nonaka Exp $	*/
+/*	$NetBSD: if_rtwnreg.h,v 1.3 2017/01/24 10:18:33 nonaka Exp $	*/
 /*	$OpenBSD: if_rtwnreg.h,v 1.3 2015/06/14 08:02:47 stsp Exp $	*/
 
 /*-
@@ -1168,6 +1168,8 @@ struct r92c_tx_desc {
 #define RTWN_NTXQUEUES			9
 #define RTWN_RX_LIST_COUNT		256
 #define RTWN_TX_LIST_COUNT		256
+#define RTWN_TX_LIST_LOMARK		192
+#define RTWN_TX_LIST_HIMARK		255
 #define RTWN_HOST_CMD_RING_COUNT	32
 
 /* TX queue indices. */

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