From: Pat LaVarre <p.lavarre@ieee.org>
To: linux-ide@vger.kernel.org
Subject: Re: [PATCH] atapi request sense work
Date: 01 Jun 2004 18:01:27 -0600 [thread overview]
Message-ID: <1086134487.12245.0.camel@patibmrh9> (raw)
In-Reply-To: <1086019779.3144.6.camel@patibmrh9>
> > > we have NOT yet explained
> > > how to insert an ATA op x00 "NOP" ...
> > > Instead, my kernel goes down ... if I try ...
More is going on than I yet know to suspect.
With SATAPI, merely inserting a fetch from an i port, which in the PATA/
PATAPI legacy was almost completely non-invasive, still produces a
complaint, specifically:
kernel: irq event 18: bogus return value 3
Pat LaVarre
diff -urp o/drivers/scsi/libata-core.c linux-2.6.7-rc2-pel/drivers/scsi/libata-core.c
--- o/drivers/scsi/libata-core.c 2004-05-30 08:53:41.000000000 -0600
+++ linux-2.6.7-rc2-pel/drivers/scsi/libata-core.c 2004-06-01 17:54:26.791846440 -0600
@@ -2636,6 +2636,12 @@ inline unsigned int ata_host_intr (struc
case ATA_PROT_ATAPI_DMA:
host_stat = ata_check_bmdma(ap);
VPRINTK("BUS_DMA (host_stat 0x%X)\n", host_stat);
+do {
+ struct ata_taskfile *tf = &qc->tf;
+ DPRINTK("before tf_read\n");
+ ap->ops->tf_read(ap, &tf);
+ DPRINTK("after tf_read\n");
+} while (0);
if (!(host_stat & ATA_DMA_INTR)) {
ap->stats.idle_irq++;
next prev parent reply other threads:[~2004-06-02 0:01 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-30 12:44 [PATCH] atapi request sense work Pat LaVarre
2004-05-30 15:15 ` Pat LaVarre
2004-05-31 16:09 ` Pat LaVarre
2004-06-02 0:01 ` Pat LaVarre [this message]
2004-06-02 20:52 ` Pat LaVarre
2004-06-02 22:36 ` Pat LaVarre
2004-06-02 22:55 ` Jeff Garzik
2004-06-02 23:53 ` Pat LaVarre
2004-06-03 0:30 ` Pat LaVarre
2004-06-03 0:52 ` Jeff Garzik
-- strict thread matches above, loose matches on Subject: below --
2004-05-21 18:45 dwm
2004-05-21 20:44 ` Pat LaVarre
2004-05-16 14:19 [PATCH] libata DMADIR support Pat LaVarre
2004-05-16 23:16 ` Jeff Garzik
2004-05-17 18:48 ` Pat LaVarre
2004-05-17 19:08 ` Jeff Garzik
[not found] ` <108482 8840.3211.26.camel@patibmrh9>
2004-05-17 21:32 ` Jeff Garzik
2004-05-17 22:05 ` Pat LaVarre
2004-05-17 22:36 ` Jeff Garzik
2004-05-18 22:40 ` Pat LaVarre
2004-05-18 23:48 ` [PATCH] atapi request sense work Jeff Garzik
2004-05-19 20:35 ` Pat LaVarre
2004-05-19 22:19 ` Jeff Garzik
2004-05-19 22:24 ` Pat LaVarre
2004-05-19 22:27 ` Pat LaVarre
2004-05-19 22:54 ` Pat LaVarre
2004-05-21 1:58 ` Pat LaVarre
[not found] ` <6 E36A 11B-AACB-11D8-8B8A-003065635034@ieee.org>
2004-05-21 2:06 ` Pat LaVarre
2004-05-21 3:05 ` Pat LaVarre
2004-05-21 4:04 ` Jeff Garzik
[not found] ` <1 085153750.6103.33.camel@patibmrh9>
2004-05-21 15:35 ` Pat LaVarre
2004-05-21 15:46 ` Bartlomiej Zolnierkiewicz
2004-05-21 17:59 ` Pat LaVarre
2004-05-21 20:07 ` Pat LaVarre
2004-05-21 21:51 ` Jeff Garzik
2004-05-21 23:12 ` Pat LaVarre
2004-05-21 23:24 ` Pat LaVarre
2004-05-21 23:55 ` Jeff Garzik
2004-05-21 23:57 ` Pat LaVarre
2004-05-21 23:39 ` Pat LaVarre
2004-05-21 23:45 ` Jeff Garzik
2004-05-22 0:06 ` Pat LaVarre
2004-05-22 0:12 ` Pat LaVarre
2004-05-22 0:33 ` Pat LaVarre
2004-05-22 1:11 ` Pat LaVarre
2004-05-26 21:49 ` Pat LaVarre
2004-05-27 23:12 ` Pat LaVarre
2004-05-27 23:32 ` Jeff Garzik
2004-05-27 23:38 ` Pat LaVarre
2004-05-27 23:41 ` Jeff Garzik
2004-05-28 0:13 ` Pat LaVarre
2004-05-28 1:28 ` Pat LaVarre
2004-05-24 15:27 ` Pat LaVarre
2004-05-21 21:59 ` Pat LaVarre
2004-05-21 18:23 ` Danny Cox
2004-05-21 18:39 ` Bartlomiej Zolnierkiewicz
2004-05-21 19:00 ` Danny Cox
2004-05-21 19:08 ` Bartlomiej Zolnierkiewicz
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1086134487.12245.0.camel@patibmrh9 \
--to=p.lavarre@ieee.org \
--cc=linux-ide@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.