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From: Jun Sun <jsun@mvista.com>
To: linux-mips@oss.sgi.com, Ralf Baechle <ralf@oss.sgi.com>
Subject: [2.4 PATCH] pcnet32.c - tx underflow error
Date: Wed, 10 Jul 2002 14:56:08 -0700	[thread overview]
Message-ID: <3D2CAD78.9070609@mvista.com> (raw)

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This patch fixes a tx underflow error for 79c973 chip.  It essentially delay 
the transmission until the whole packet is received into the on-chip sdram.

The patch is already accepted by Marcelo for the 2.4 tree, I think.

Jun

[-- Attachment #2: pcnet32.patch --]
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diff -Nru linux/drivers/net/pcnet32.c.orig linux/drivers/net/pcnet32.c
--- linux/drivers/net/pcnet32.c.orig	Tue Jul  9 15:05:55 2002
+++ linux/drivers/net/pcnet32.c	Tue Jul  9 18:28:19 2002
@@ -569,7 +569,7 @@
 	break;
     case 0x2625:
 	chipname = "PCnet/FAST III 79C973"; /* PCI */
-	fdx = 1; mii = 1;
+	fdx = 1; mii = 1; fset = 1;
 	break;
     case 0x2626:
 	chipname = "PCnet/Home 79C978"; /* PCI */
@@ -613,7 +613,7 @@
     if(fset)
     {
 	a->write_bcr(ioaddr, 18, (a->read_bcr(ioaddr, 18) | 0x0800));
-	a->write_csr(ioaddr, 80, (a->read_csr(ioaddr, 80) & 0x0C00) | 0x0c00);
+	a->write_csr(ioaddr, 80, (a->read_csr(ioaddr, 80) & ~0x0C00) | 0x0c00);
 	dxsuflo = 1;
 	ltint = 1;
     }

             reply	other threads:[~2002-07-10 21:59 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-07-10 21:56 Jun Sun [this message]
2002-07-10 23:51 ` [2.4 PATCH] pcnet32.c - tx underflow error Alan Cox
2002-07-10 23:51   ` Alan Cox
2002-07-10 23:51   ` Jun Sun
2002-07-11  2:21     ` Alan Cox
2002-07-11  2:21       ` Alan Cox
2002-07-11  3:01     ` Jason Gunthorpe
2002-07-11  0:08   ` Jun Sun
2002-07-11  2:16     ` Alan Cox
2002-07-11  2:16       ` Alan Cox
2002-07-11  8:12       ` Thomas Bogendoerfer
2002-07-12  2:51   ` Marcelo Tosatti
2002-07-12  2:51     ` Marcelo Tosatti
2002-07-12 18:26     ` Jun Sun

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