Re: kern/46083: gem(4) is broken on NetBSD 6_BETA (macppc)

[Valery Ushakov <uwe%stderr.spb.ru@localhost>]

The following reply was made to PR kern/46083; it has been noted by GNATS.

From: Valery Ushakov <uwe%stderr.spb.ru@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/46083: gem(4) is broken on NetBSD 6_BETA (macppc)
Date: Tue, 17 May 2016 02:31:08 +0300

 This patch against -6 seems to fix it for me.  I guess this is also
 why TCP checksumming was "broken".
 
 --- gem.c.~1.98.2.1.~	2016-05-17 02:04:34.000000000 +0300
 +++ gem.c	2016-05-17 02:20:23.000000000 +0300
 @@ -1365,14 +1365,12 @@
  		return;
  
  	/*
 -	 * Remember the previous number of free descriptors and
 -	 * the first descriptor we'll use.
 +	 * Remember the previous number of free descriptors.
  	 */
  	ofree = sc->sc_txfree;
 -	firsttx = sc->sc_txnext;
  
  	DPRINTF(sc, ("%s: gem_start: txfree %d, txnext %d\n",
 -	    device_xname(sc->sc_dev), ofree, firsttx));
 +	    device_xname(sc->sc_dev), ofree, sc->sc_txnext));
  
  	/*
  	 * Loop through the send queue, setting up transmit descriptors
 @@ -1477,7 +1475,8 @@
  		/*
  		 * Initialize the transmit descriptors.
  		 */
 -		for (nexttx = sc->sc_txnext, seg = 0;
 +		firsttx = sc->sc_txnext;
 +		for (nexttx = firsttx, seg = 0;
  		     seg < dmamap->dm_nsegs;
  		     seg++, nexttx = GEM_NEXTTX(nexttx)) {
  
 <end of patch>
 
 -uwe