* [PATCH 0/3] debloat aic7xxx and aic79xx drivers
@ 2007-08-31 15:13 Denys Vlasenko
2007-08-31 15:15 ` [PATCH 1/3] " Denys Vlasenko
2007-08-31 16:27 ` [PATCH 0/3] " Valdis.Kletnieks
0 siblings, 2 replies; 15+ messages in thread
From: Denys Vlasenko @ 2007-08-31 15:13 UTC (permalink / raw)
To: Hannes Reinecke
Cc: Jan Engelhardt, Matthew Wilcox, Denys Vlasenko, Arjan van de Ven,
Adrian Bunk, Andrew Morton, linux-scsi, linux-kernel
On Friday 31 August 2007 14:42, Hannes Reinecke wrote:
> Jan Engelhardt wrote:
> > On Aug 30 2007 13:02, Matthew Wilcox wrote:
> >>> Well, you can send it to Linus/Andrew, that will usually upset people
> >>> and they start commenting on it. Or they don't, and everything is fine.
> >>> (The "default y" approach so to speak ;-)
> >>
> >> The problem is that we don't really have a maintainer for the aic7xyz
> >> drivers any more. Volunteers welcome. NOT IT!
> >
> > Take it before someone else does!
>
> Well, the semi-official maintainers are James B. and me.
>
> So I might as well do it officially.
Cool.
Thanks to Arjan's insistence, I also took a look at adding statics
and unexpectedly discovered yet another 50 kbytes of dead code
(I'm not kidding).
Attached are three patches which fix that:
text data bss dec hex filename
261433 50018 1172 312623 4c52f linux-2.6.23-rc1.org.t/drivers/scsi/aic7xxx/built-in.o
199654 50018 1172 250844 3d3dc linux-2.6.23-rc1.aic.t/drivers/scsi/aic7xxx/built-in.o
184014 21314 1172 206500 326a4 linux-2.6.23-rc1.aic1.t/drivers/scsi/aic7xxx/built-in.o
202378 2850 1172 206400 32640 linux-2.6.23-rc1.aic2.t/drivers/scsi/aic7xxx/built-in.o
1-debloat.patch deinlines a lot of functions
2-addstatic.patch adds statics, #ifdefs out huge amount of unused code, adds consts
3-addconst.patch adds more consts
make namespacecheck goes from 400+ functions to:
drivers/scsi/aic7xxx/aic79xx_core.o
ahd_inq
ahd_inw
ahd_outq
ahd_outw
drivers/scsi/aic7xxx/aic79xx_osm.o
ahd_insb
drivers/scsi/aic7xxx/aic7xxx_core.o
ahc_inq
ahc_outq
drivers/scsi/aic7xxx/aic7xxx_osm.o
ahc_insb
None of these patches actually touch any logic, code changes
are pretty minimal.
Compile tested and applies cleanly to 2.6.23-rc1, applies with some fuzz to 2.6.23-rc3.
Please propagate to mainline.
--
vda
^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 1/3] debloat aic7xxx and aic79xx drivers
2007-08-31 15:13 [PATCH 0/3] debloat aic7xxx and aic79xx drivers Denys Vlasenko
@ 2007-08-31 15:15 ` Denys Vlasenko
2007-08-31 15:16 ` [PATCH 2/3] " Denys Vlasenko
2007-09-24 10:16 ` [PATCH 1/3] " Hannes Reinecke
2007-08-31 16:27 ` [PATCH 0/3] " Valdis.Kletnieks
1 sibling, 2 replies; 15+ messages in thread
From: Denys Vlasenko @ 2007-08-31 15:15 UTC (permalink / raw)
To: Hannes Reinecke
Cc: Jan Engelhardt, Matthew Wilcox, Arjan van de Ven, Adrian Bunk,
Andrew Morton, linux-scsi, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 730 bytes --]
On Friday 31 August 2007 16:13, Denys Vlasenko wrote:
> Attached are three patches which fix that:
>
> text data bss dec hex filename
> 261433 50018 1172 312623 4c52f linux-2.6.23-rc1.org.t/drivers/scsi/aic7xxx/built-in.o
> 199654 50018 1172 250844 3d3dc linux-2.6.23-rc1.aic.t/drivers/scsi/aic7xxx/built-in.o
> 184014 21314 1172 206500 326a4 linux-2.6.23-rc1.aic1.t/drivers/scsi/aic7xxx/built-in.o
> 202378 2850 1172 206400 32640 linux-2.6.23-rc1.aic2.t/drivers/scsi/aic7xxx/built-in.o
>
> 1-debloat.patch deinlines a lot of functions
> 2-addstatic.patch adds statics, #ifdefs out huge amount of unused code, adds consts
> 3-addconst.patch adds more consts
--
vda
[-- Attachment #2: linux-2.6.23-rc1-aic7xxx-1-debloat.patch.bz2 --]
[-- Type: application/x-bzip2, Size: 14393 bytes --]
^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 2/3] debloat aic7xxx and aic79xx drivers
2007-08-31 15:15 ` [PATCH 1/3] " Denys Vlasenko
@ 2007-08-31 15:16 ` Denys Vlasenko
2007-08-31 15:17 ` [PATCH 3/3] " Denys Vlasenko
2007-09-24 10:23 ` [PATCH 2/3] " Hannes Reinecke
2007-09-24 10:16 ` [PATCH 1/3] " Hannes Reinecke
1 sibling, 2 replies; 15+ messages in thread
From: Denys Vlasenko @ 2007-08-31 15:16 UTC (permalink / raw)
To: Hannes Reinecke
Cc: Jan Engelhardt, Matthew Wilcox, Arjan van de Ven, Adrian Bunk,
Andrew Morton, linux-scsi, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 807 bytes --]
On Friday 31 August 2007 16:15, Denys Vlasenko wrote:
> On Friday 31 August 2007 16:13, Denys Vlasenko wrote:
> > Attached are three patches which fix that:
> >
> > text data bss dec hex filename
> > 261433 50018 1172 312623 4c52f linux-2.6.23-rc1.org.t/drivers/scsi/aic7xxx/built-in.o
> > 199654 50018 1172 250844 3d3dc linux-2.6.23-rc1.aic.t/drivers/scsi/aic7xxx/built-in.o
> > 184014 21314 1172 206500 326a4 linux-2.6.23-rc1.aic1.t/drivers/scsi/aic7xxx/built-in.o
> > 202378 2850 1172 206400 32640 linux-2.6.23-rc1.aic2.t/drivers/scsi/aic7xxx/built-in.o
> >
> > 1-debloat.patch deinlines a lot of functions
> > 2-addstatic.patch adds statics, #ifdefs out huge amount of unused code, adds consts
> > 3-addconst.patch adds more consts
--
vda
[-- Attachment #2: linux-2.6.23-rc1-aic7xxx-2-addstatic.patch.bz2 --]
[-- Type: application/x-bzip2, Size: 21343 bytes --]
^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 3/3] debloat aic7xxx and aic79xx drivers
2007-08-31 15:16 ` [PATCH 2/3] " Denys Vlasenko
@ 2007-08-31 15:17 ` Denys Vlasenko
2007-09-24 10:24 ` Hannes Reinecke
2007-09-24 10:23 ` [PATCH 2/3] " Hannes Reinecke
1 sibling, 1 reply; 15+ messages in thread
From: Denys Vlasenko @ 2007-08-31 15:17 UTC (permalink / raw)
To: Hannes Reinecke
Cc: Jan Engelhardt, Matthew Wilcox, Arjan van de Ven, Adrian Bunk,
Andrew Morton, linux-scsi, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 886 bytes --]
On Friday 31 August 2007 16:16, Denys Vlasenko wrote:
> On Friday 31 August 2007 16:15, Denys Vlasenko wrote:
> > On Friday 31 August 2007 16:13, Denys Vlasenko wrote:
> > > Attached are three patches which fix that:
> > >
> > > text data bss dec hex filename
> > > 261433 50018 1172 312623 4c52f linux-2.6.23-rc1.org.t/drivers/scsi/aic7xxx/built-in.o
> > > 199654 50018 1172 250844 3d3dc linux-2.6.23-rc1.aic.t/drivers/scsi/aic7xxx/built-in.o
> > > 184014 21314 1172 206500 326a4 linux-2.6.23-rc1.aic1.t/drivers/scsi/aic7xxx/built-in.o
> > > 202378 2850 1172 206400 32640 linux-2.6.23-rc1.aic2.t/drivers/scsi/aic7xxx/built-in.o
> > >
> > > 1-debloat.patch deinlines a lot of functions
> > > 2-addstatic.patch adds statics, #ifdefs out huge amount of unused code, adds consts
> > > 3-addconst.patch adds more consts
--
vda
[-- Attachment #2: linux-2.6.23-rc1-aic7xxx-3-addconst.patch.bz2 --]
[-- Type: application/x-bzip2, Size: 4229 bytes --]
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH 0/3] debloat aic7xxx and aic79xx drivers
2007-08-31 15:13 [PATCH 0/3] debloat aic7xxx and aic79xx drivers Denys Vlasenko
2007-08-31 15:15 ` [PATCH 1/3] " Denys Vlasenko
@ 2007-08-31 16:27 ` Valdis.Kletnieks
2007-08-31 21:20 ` Denys Vlasenko
1 sibling, 1 reply; 15+ messages in thread
From: Valdis.Kletnieks @ 2007-08-31 16:27 UTC (permalink / raw)
To: Denys Vlasenko
Cc: Hannes Reinecke, Jan Engelhardt, Matthew Wilcox, Arjan van de Ven,
Adrian Bunk, Andrew Morton, linux-scsi, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 774 bytes --]
On Fri, 31 Aug 2007 16:13:59 BST, Denys Vlasenko said:
>
> text data bss dec hex filename
> 261433 50018 1172 312623 4c52f linux-2.6.23-rc1.org.t/drivers/scsi/aic7xxx/built-in.o
> 199654 50018 1172 250844 3d3dc linux-2.6.23-rc1.aic.t/drivers/scsi/aic7xxx/built-in.o
> 184014 21314 1172 206500 326a4 linux-2.6.23-rc1.aic1.t/drivers/scsi/aic7xxx/built-in.o
> 202378 2850 1172 206400 32640 linux-2.6.23-rc1.aic2.t/drivers/scsi/aic7xxx/built-in.o
>
> 1-debloat.patch deinlines a lot of functions
> 2-addstatic.patch adds statics, #ifdefs out huge amount of unused code, adds consts
> 3-addconst.patch adds more consts
Yowza. Looking at aic1->aic2, it looks like 20K became 'const', and only
3K *wasn't* 'const'?
[-- Attachment #2: Type: application/pgp-signature, Size: 226 bytes --]
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH 0/3] debloat aic7xxx and aic79xx drivers
2007-08-31 16:27 ` [PATCH 0/3] " Valdis.Kletnieks
@ 2007-08-31 21:20 ` Denys Vlasenko
0 siblings, 0 replies; 15+ messages in thread
From: Denys Vlasenko @ 2007-08-31 21:20 UTC (permalink / raw)
To: Valdis.Kletnieks
Cc: Hannes Reinecke, Jan Engelhardt, Matthew Wilcox, Arjan van de Ven,
Adrian Bunk, Andrew Morton, linux-scsi, linux-kernel
On Friday 31 August 2007 17:27, Valdis.Kletnieks@vt.edu wrote:
> On Fri, 31 Aug 2007 16:13:59 BST, Denys Vlasenko said:
> >
> > text data bss dec hex filename
> > 261433 50018 1172 312623 4c52f linux-2.6.23-rc1.org.t/drivers/scsi/aic7xxx/built-in.o
> > 199654 50018 1172 250844 3d3dc linux-2.6.23-rc1.aic.t/drivers/scsi/aic7xxx/built-in.o
> > 184014 21314 1172 206500 326a4 linux-2.6.23-rc1.aic1.t/drivers/scsi/aic7xxx/built-in.o
> > 202378 2850 1172 206400 32640 linux-2.6.23-rc1.aic2.t/drivers/scsi/aic7xxx/built-in.o
> >
> > 1-debloat.patch deinlines a lot of functions
> > 2-addstatic.patch adds statics, #ifdefs out huge amount of unused code, adds consts
> > 3-addconst.patch adds more consts
>
> Yowza. Looking at aic1->aic2, it looks like 20K became 'const', and only
> 3K *wasn't* 'const'?
Exactly. There are firmware images/patches and a lot of structures
with char* members pointing to text/messages.
Btw, aic94xx driver needs the same treatment.
--
vda
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH 1/3] debloat aic7xxx and aic79xx drivers
2007-08-31 15:15 ` [PATCH 1/3] " Denys Vlasenko
2007-08-31 15:16 ` [PATCH 2/3] " Denys Vlasenko
@ 2007-09-24 10:16 ` Hannes Reinecke
1 sibling, 0 replies; 15+ messages in thread
From: Hannes Reinecke @ 2007-09-24 10:16 UTC (permalink / raw)
To: Denys Vlasenko
Cc: Jan Engelhardt, Matthew Wilcox, Arjan van de Ven, Adrian Bunk,
Andrew Morton, linux-scsi, linux-kernel
Denys Vlasenko wrote:
> On Friday 31 August 2007 16:13, Denys Vlasenko wrote:
>> Attached are three patches which fix that:
>>
>> text data bss dec hex filename
>> 261433 50018 1172 312623 4c52f linux-2.6.23-rc1.org.t/drivers/scsi/aic7xxx/built-in.o
>> 199654 50018 1172 250844 3d3dc linux-2.6.23-rc1.aic.t/drivers/scsi/aic7xxx/built-in.o
>> 184014 21314 1172 206500 326a4 linux-2.6.23-rc1.aic1.t/drivers/scsi/aic7xxx/built-in.o
>> 202378 2850 1172 206400 32640 linux-2.6.23-rc1.aic2.t/drivers/scsi/aic7xxx/built-in.o
>>
>> 1-debloat.patch deinlines a lot of functions
>> 2-addstatic.patch adds statics, #ifdefs out huge amount of unused code, adds consts
>> 3-addconst.patch adds more consts
> --
> vda
>
>
Signed-off-by: Hannes Reinecke <hare@suse.de>
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Markus Rex, HRB 16746 (AG Nürnberg)
-
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.kernel.org
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^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH 2/3] debloat aic7xxx and aic79xx drivers
2007-08-31 15:16 ` [PATCH 2/3] " Denys Vlasenko
2007-08-31 15:17 ` [PATCH 3/3] " Denys Vlasenko
@ 2007-09-24 10:23 ` Hannes Reinecke
1 sibling, 0 replies; 15+ messages in thread
From: Hannes Reinecke @ 2007-09-24 10:23 UTC (permalink / raw)
To: Denys Vlasenko
Cc: Jan Engelhardt, Matthew Wilcox, Arjan van de Ven, Adrian Bunk,
Andrew Morton, linux-scsi, linux-kernel
Denys Vlasenko wrote:
> On Friday 31 August 2007 16:15, Denys Vlasenko wrote:
>> On Friday 31 August 2007 16:13, Denys Vlasenko wrote:
>>> Attached are three patches which fix that:
>>>
>>> text data bss dec hex filename
>>> 261433 50018 1172 312623 4c52f linux-2.6.23-rc1.org.t/drivers/scsi/aic7xxx/built-in.o
>>> 199654 50018 1172 250844 3d3dc linux-2.6.23-rc1.aic.t/drivers/scsi/aic7xxx/built-in.o
>>> 184014 21314 1172 206500 326a4 linux-2.6.23-rc1.aic1.t/drivers/scsi/aic7xxx/built-in.o
>>> 202378 2850 1172 206400 32640 linux-2.6.23-rc1.aic2.t/drivers/scsi/aic7xxx/built-in.o
>>>
>>> 1-debloat.patch deinlines a lot of functions
>>> 2-addstatic.patch adds statics, #ifdefs out huge amount of unused code, adds consts
>>> 3-addconst.patch adds more consts
Have you checked the sequence assembler, too? It doesn't help much to edit the *.shipped files;
someone might just run the assembler again and we're back to square one ...
Apart from this:
Signed-off-by: Hannes Reinecke <hare@suse.de>
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Markus Rex, HRB 16746 (AG Nürnberg)
-
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH 3/3] debloat aic7xxx and aic79xx drivers
2007-08-31 15:17 ` [PATCH 3/3] " Denys Vlasenko
@ 2007-09-24 10:24 ` Hannes Reinecke
0 siblings, 0 replies; 15+ messages in thread
From: Hannes Reinecke @ 2007-09-24 10:24 UTC (permalink / raw)
To: Denys Vlasenko
Cc: Jan Engelhardt, Matthew Wilcox, Arjan van de Ven, Adrian Bunk,
Andrew Morton, linux-scsi, linux-kernel
Denys Vlasenko wrote:
> On Friday 31 August 2007 16:16, Denys Vlasenko wrote:
>> On Friday 31 August 2007 16:15, Denys Vlasenko wrote:
>>> On Friday 31 August 2007 16:13, Denys Vlasenko wrote:
>>>> Attached are three patches which fix that:
>>>>
>>>> text data bss dec hex filename
>>>> 261433 50018 1172 312623 4c52f linux-2.6.23-rc1.org.t/drivers/scsi/aic7xxx/built-in.o
>>>> 199654 50018 1172 250844 3d3dc linux-2.6.23-rc1.aic.t/drivers/scsi/aic7xxx/built-in.o
>>>> 184014 21314 1172 206500 326a4 linux-2.6.23-rc1.aic1.t/drivers/scsi/aic7xxx/built-in.o
>>>> 202378 2850 1172 206400 32640 linux-2.6.23-rc1.aic2.t/drivers/scsi/aic7xxx/built-in.o
>>>>
>>>> 1-debloat.patch deinlines a lot of functions
>>>> 2-addstatic.patch adds statics, #ifdefs out huge amount of unused code, adds consts
>>>> 3-addconst.patch adds more consts
Signed-off-by: Hannes Reinecke <hare@suse.de>
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Markus Rex, HRB 16746 (AG Nürnberg)
-
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 1/3] debloat aic7xxx and aic79xx drivers
2007-10-14 14:58 Denys Vlasenko
@ 2007-10-14 15:00 ` Denys Vlasenko
2007-11-01 22:15 ` Matthew Wilcox
0 siblings, 1 reply; 15+ messages in thread
From: Denys Vlasenko @ 2007-10-14 15:00 UTC (permalink / raw)
To: Andrew Morton; +Cc: Hannes Reinecke, linux-scsi, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 188 bytes --]
Deinlines and moves big functions from .h to .c files.
Adds prototypes for ahc_lookup_scb and ahd_lookup_scb to .h files.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
--
vda
[-- Attachment #2: linux-2.6.23-aic-1-debloat.patch --]
[-- Type: text/x-diff, Size: 104906 bytes --]
diff -urpN linux-2.6.23/drivers/scsi/aic7xxx/aic79xx_core.c linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic79xx_core.c
--- linux-2.6.23/drivers/scsi/aic7xxx/aic79xx_core.c 2007-10-09 21:31:38.000000000 +0100
+++ linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic79xx_core.c 2007-10-14 15:02:44.000000000 +0100
@@ -266,8 +266,752 @@ static int ahd_match_scb(struct ahd_sof
int target, char channel, int lun,
u_int tag, role_t role);
-/******************************** Private Inlines *****************************/
+/************************ Sequencer Execution Control *************************/
+void
+ahd_set_modes(struct ahd_softc *ahd, ahd_mode src, ahd_mode dst)
+{
+ if (ahd->src_mode == src && ahd->dst_mode == dst)
+ return;
+#ifdef AHD_DEBUG
+ if (ahd->src_mode == AHD_MODE_UNKNOWN
+ || ahd->dst_mode == AHD_MODE_UNKNOWN)
+ panic("Setting mode prior to saving it.\n");
+ if ((ahd_debug & AHD_SHOW_MODEPTR) != 0)
+ printf("%s: Setting mode 0x%x\n", ahd_name(ahd),
+ ahd_build_mode_state(ahd, src, dst));
+#endif
+ ahd_outb(ahd, MODE_PTR, ahd_build_mode_state(ahd, src, dst));
+ ahd->src_mode = src;
+ ahd->dst_mode = dst;
+}
+
+void
+ahd_update_modes(struct ahd_softc *ahd)
+{
+ ahd_mode_state mode_ptr;
+ ahd_mode src;
+ ahd_mode dst;
+
+ mode_ptr = ahd_inb(ahd, MODE_PTR);
+#ifdef AHD_DEBUG
+ if ((ahd_debug & AHD_SHOW_MODEPTR) != 0)
+ printf("Reading mode 0x%x\n", mode_ptr);
+#endif
+ ahd_extract_mode_state(ahd, mode_ptr, &src, &dst);
+ ahd_known_modes(ahd, src, dst);
+}
+
+void
+ahd_assert_modes(struct ahd_softc *ahd, ahd_mode srcmode,
+ ahd_mode dstmode, const char *file, int line)
+{
+#ifdef AHD_DEBUG
+ if ((srcmode & AHD_MK_MSK(ahd->src_mode)) == 0
+ || (dstmode & AHD_MK_MSK(ahd->dst_mode)) == 0) {
+ panic("%s:%s:%d: Mode assertion failed.\n",
+ ahd_name(ahd), file, line);
+ }
+#endif
+}
+
+#define AHD_ASSERT_MODES(ahd, source, dest) \
+ ahd_assert_modes(ahd, source, dest, __FILE__, __LINE__);
+
+ahd_mode_state
+ahd_save_modes(struct ahd_softc *ahd)
+{
+ if (ahd->src_mode == AHD_MODE_UNKNOWN
+ || ahd->dst_mode == AHD_MODE_UNKNOWN)
+ ahd_update_modes(ahd);
+
+ return (ahd_build_mode_state(ahd, ahd->src_mode, ahd->dst_mode));
+}
+
+void
+ahd_restore_modes(struct ahd_softc *ahd, ahd_mode_state state)
+{
+ ahd_mode src;
+ ahd_mode dst;
+
+ ahd_extract_mode_state(ahd, state, &src, &dst);
+ ahd_set_modes(ahd, src, dst);
+}
+
+/*
+ * Determine whether the sequencer has halted code execution.
+ * Returns non-zero status if the sequencer is stopped.
+ */
+int
+ahd_is_paused(struct ahd_softc *ahd)
+{
+ return ((ahd_inb(ahd, HCNTRL) & PAUSE) != 0);
+}
+
+/*
+ * Request that the sequencer stop and wait, indefinitely, for it
+ * to stop. The sequencer will only acknowledge that it is paused
+ * once it has reached an instruction boundary and PAUSEDIS is
+ * cleared in the SEQCTL register. The sequencer may use PAUSEDIS
+ * for critical sections.
+ */
+void
+ahd_pause(struct ahd_softc *ahd)
+{
+ ahd_outb(ahd, HCNTRL, ahd->pause);
+
+ /*
+ * Since the sequencer can disable pausing in a critical section, we
+ * must loop until it actually stops.
+ */
+ while (ahd_is_paused(ahd) == 0)
+ ;
+}
+
+/*
+ * Allow the sequencer to continue program execution.
+ * We check here to ensure that no additional interrupt
+ * sources that would cause the sequencer to halt have been
+ * asserted. If, for example, a SCSI bus reset is detected
+ * while we are fielding a different, pausing, interrupt type,
+ * we don't want to release the sequencer before going back
+ * into our interrupt handler and dealing with this new
+ * condition.
+ */
+void
+ahd_unpause(struct ahd_softc *ahd)
+{
+ /*
+ * Automatically restore our modes to those saved
+ * prior to the first change of the mode.
+ */
+ if (ahd->saved_src_mode != AHD_MODE_UNKNOWN
+ && ahd->saved_dst_mode != AHD_MODE_UNKNOWN) {
+ if ((ahd->flags & AHD_UPDATE_PEND_CMDS) != 0)
+ ahd_reset_cmds_pending(ahd);
+ ahd_set_modes(ahd, ahd->saved_src_mode, ahd->saved_dst_mode);
+ }
+
+ if ((ahd_inb(ahd, INTSTAT) & ~CMDCMPLT) == 0)
+ ahd_outb(ahd, HCNTRL, ahd->unpause);
+
+ ahd_known_modes(ahd, AHD_MODE_UNKNOWN, AHD_MODE_UNKNOWN);
+}
+
+/*********************** Scatter Gather List Handling *************************/
+void *
+ahd_sg_setup(struct ahd_softc *ahd, struct scb *scb,
+ void *sgptr, dma_addr_t addr, bus_size_t len, int last)
+{
+ scb->sg_count++;
+ if (sizeof(dma_addr_t) > 4
+ && (ahd->flags & AHD_64BIT_ADDRESSING) != 0) {
+ struct ahd_dma64_seg *sg;
+
+ sg = (struct ahd_dma64_seg *)sgptr;
+ sg->addr = ahd_htole64(addr);
+ sg->len = ahd_htole32(len | (last ? AHD_DMA_LAST_SEG : 0));
+ return (sg + 1);
+ } else {
+ struct ahd_dma_seg *sg;
+
+ sg = (struct ahd_dma_seg *)sgptr;
+ sg->addr = ahd_htole32(addr & 0xFFFFFFFF);
+ sg->len = ahd_htole32(len | ((addr >> 8) & 0x7F000000)
+ | (last ? AHD_DMA_LAST_SEG : 0));
+ return (sg + 1);
+ }
+}
+
+void
+ahd_setup_scb_common(struct ahd_softc *ahd, struct scb *scb)
+{
+ /* XXX Handle target mode SCBs. */
+ scb->crc_retry_count = 0;
+ if ((scb->flags & SCB_PACKETIZED) != 0) {
+ /* XXX what about ACA?? It is type 4, but TAG_TYPE == 0x3. */
+ scb->hscb->task_attribute = scb->hscb->control & SCB_TAG_TYPE;
+ } else {
+ if (ahd_get_transfer_length(scb) & 0x01)
+ scb->hscb->task_attribute = SCB_XFERLEN_ODD;
+ else
+ scb->hscb->task_attribute = 0;
+ }
+
+ if (scb->hscb->cdb_len <= MAX_CDB_LEN_WITH_SENSE_ADDR
+ || (scb->hscb->cdb_len & SCB_CDB_LEN_PTR) != 0)
+ scb->hscb->shared_data.idata.cdb_plus_saddr.sense_addr =
+ ahd_htole32(scb->sense_busaddr);
+}
+
+void
+ahd_setup_data_scb(struct ahd_softc *ahd, struct scb *scb)
+{
+ /*
+ * Copy the first SG into the "current" data ponter area.
+ */
+ if ((ahd->flags & AHD_64BIT_ADDRESSING) != 0) {
+ struct ahd_dma64_seg *sg;
+
+ sg = (struct ahd_dma64_seg *)scb->sg_list;
+ scb->hscb->dataptr = sg->addr;
+ scb->hscb->datacnt = sg->len;
+ } else {
+ struct ahd_dma_seg *sg;
+ uint32_t *dataptr_words;
+
+ sg = (struct ahd_dma_seg *)scb->sg_list;
+ dataptr_words = (uint32_t*)&scb->hscb->dataptr;
+ dataptr_words[0] = sg->addr;
+ dataptr_words[1] = 0;
+ if ((ahd->flags & AHD_39BIT_ADDRESSING) != 0) {
+ uint64_t high_addr;
+
+ high_addr = ahd_le32toh(sg->len) & 0x7F000000;
+ scb->hscb->dataptr |= ahd_htole64(high_addr << 8);
+ }
+ scb->hscb->datacnt = sg->len;
+ }
+ /*
+ * Note where to find the SG entries in bus space.
+ * We also set the full residual flag which the
+ * sequencer will clear as soon as a data transfer
+ * occurs.
+ */
+ scb->hscb->sgptr = ahd_htole32(scb->sg_list_busaddr|SG_FULL_RESID);
+}
+
+void
+ahd_setup_noxfer_scb(struct ahd_softc *ahd, struct scb *scb)
+{
+ scb->hscb->sgptr = ahd_htole32(SG_LIST_NULL);
+ scb->hscb->dataptr = 0;
+ scb->hscb->datacnt = 0;
+}
+
+/************************** Memory mapping routines ***************************/
+void *
+ahd_sg_bus_to_virt(struct ahd_softc *ahd, struct scb *scb, uint32_t sg_busaddr)
+{
+ dma_addr_t sg_offset;
+
+ /* sg_list_phys points to entry 1, not 0 */
+ sg_offset = sg_busaddr - (scb->sg_list_busaddr - ahd_sg_size(ahd));
+ return ((uint8_t *)scb->sg_list + sg_offset);
+}
+
+uint32_t
+ahd_sg_virt_to_bus(struct ahd_softc *ahd, struct scb *scb, void *sg)
+{
+ dma_addr_t sg_offset;
+
+ /* sg_list_phys points to entry 1, not 0 */
+ sg_offset = ((uint8_t *)sg - (uint8_t *)scb->sg_list)
+ - ahd_sg_size(ahd);
+
+ return (scb->sg_list_busaddr + sg_offset);
+}
+
+void
+ahd_sync_scb(struct ahd_softc *ahd, struct scb *scb, int op)
+{
+ ahd_dmamap_sync(ahd, ahd->scb_data.hscb_dmat,
+ scb->hscb_map->dmamap,
+ /*offset*/(uint8_t*)scb->hscb - scb->hscb_map->vaddr,
+ /*len*/sizeof(*scb->hscb), op);
+}
+
+void
+ahd_sync_sglist(struct ahd_softc *ahd, struct scb *scb, int op)
+{
+ if (scb->sg_count == 0)
+ return;
+
+ ahd_dmamap_sync(ahd, ahd->scb_data.sg_dmat,
+ scb->sg_map->dmamap,
+ /*offset*/scb->sg_list_busaddr - ahd_sg_size(ahd),
+ /*len*/ahd_sg_size(ahd) * scb->sg_count, op);
+}
+
+void
+ahd_sync_sense(struct ahd_softc *ahd, struct scb *scb, int op)
+{
+ ahd_dmamap_sync(ahd, ahd->scb_data.sense_dmat,
+ scb->sense_map->dmamap,
+ /*offset*/scb->sense_busaddr,
+ /*len*/AHD_SENSE_BUFSIZE, op);
+}
+
+uint32_t
+ahd_targetcmd_offset(struct ahd_softc *ahd, u_int index)
+{
+ return (((uint8_t *)&ahd->targetcmds[index])
+ - (uint8_t *)ahd->qoutfifo);
+}
+
+/*********************** Miscelaneous Support Functions ***********************/
+/*
+ * Return pointers to the transfer negotiation information
+ * for the specified our_id/remote_id pair.
+ */
+struct ahd_initiator_tinfo *
+ahd_fetch_transinfo(struct ahd_softc *ahd, char channel, u_int our_id,
+ u_int remote_id, struct ahd_tmode_tstate **tstate)
+{
+ /*
+ * Transfer data structures are stored from the perspective
+ * of the target role. Since the parameters for a connection
+ * in the initiator role to a given target are the same as
+ * when the roles are reversed, we pretend we are the target.
+ */
+ if (channel == 'B')
+ our_id += 8;
+ *tstate = ahd->enabled_targets[our_id];
+ return (&(*tstate)->transinfo[remote_id]);
+}
+
+uint16_t
+ahd_inw(struct ahd_softc *ahd, u_int port)
+{
+ /*
+ * Read high byte first as some registers increment
+ * or have other side effects when the low byte is
+ * read.
+ */
+ uint16_t r = ahd_inb(ahd, port+1) << 8;
+ return r | ahd_inb(ahd, port);
+}
+
+void
+ahd_outw(struct ahd_softc *ahd, u_int port, u_int value)
+{
+ /*
+ * Write low byte first to accomodate registers
+ * such as PRGMCNT where the order maters.
+ */
+ ahd_outb(ahd, port, value & 0xFF);
+ ahd_outb(ahd, port+1, (value >> 8) & 0xFF);
+}
+
+uint32_t
+ahd_inl(struct ahd_softc *ahd, u_int port)
+{
+ return ((ahd_inb(ahd, port))
+ | (ahd_inb(ahd, port+1) << 8)
+ | (ahd_inb(ahd, port+2) << 16)
+ | (ahd_inb(ahd, port+3) << 24));
+}
+
+void
+ahd_outl(struct ahd_softc *ahd, u_int port, uint32_t value)
+{
+ ahd_outb(ahd, port, (value) & 0xFF);
+ ahd_outb(ahd, port+1, ((value) >> 8) & 0xFF);
+ ahd_outb(ahd, port+2, ((value) >> 16) & 0xFF);
+ ahd_outb(ahd, port+3, ((value) >> 24) & 0xFF);
+}
+
+uint64_t
+ahd_inq(struct ahd_softc *ahd, u_int port)
+{
+ return ((ahd_inb(ahd, port))
+ | (ahd_inb(ahd, port+1) << 8)
+ | (ahd_inb(ahd, port+2) << 16)
+ | (ahd_inb(ahd, port+3) << 24)
+ | (((uint64_t)ahd_inb(ahd, port+4)) << 32)
+ | (((uint64_t)ahd_inb(ahd, port+5)) << 40)
+ | (((uint64_t)ahd_inb(ahd, port+6)) << 48)
+ | (((uint64_t)ahd_inb(ahd, port+7)) << 56));
+}
+
+void
+ahd_outq(struct ahd_softc *ahd, u_int port, uint64_t value)
+{
+ ahd_outb(ahd, port, value & 0xFF);
+ ahd_outb(ahd, port+1, (value >> 8) & 0xFF);
+ ahd_outb(ahd, port+2, (value >> 16) & 0xFF);
+ ahd_outb(ahd, port+3, (value >> 24) & 0xFF);
+ ahd_outb(ahd, port+4, (value >> 32) & 0xFF);
+ ahd_outb(ahd, port+5, (value >> 40) & 0xFF);
+ ahd_outb(ahd, port+6, (value >> 48) & 0xFF);
+ ahd_outb(ahd, port+7, (value >> 56) & 0xFF);
+}
+
+u_int
+ahd_get_scbptr(struct ahd_softc *ahd)
+{
+ AHD_ASSERT_MODES(ahd, ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK),
+ ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK));
+ return (ahd_inb(ahd, SCBPTR) | (ahd_inb(ahd, SCBPTR + 1) << 8));
+}
+
+void
+ahd_set_scbptr(struct ahd_softc *ahd, u_int scbptr)
+{
+ AHD_ASSERT_MODES(ahd, ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK),
+ ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK));
+ ahd_outb(ahd, SCBPTR, scbptr & 0xFF);
+ ahd_outb(ahd, SCBPTR+1, (scbptr >> 8) & 0xFF);
+}
+
+u_int
+ahd_get_hnscb_qoff(struct ahd_softc *ahd)
+{
+ return (ahd_inw_atomic(ahd, HNSCB_QOFF));
+}
+
+void
+ahd_set_hnscb_qoff(struct ahd_softc *ahd, u_int value)
+{
+ ahd_outw_atomic(ahd, HNSCB_QOFF, value);
+}
+
+u_int
+ahd_get_hescb_qoff(struct ahd_softc *ahd)
+{
+ return (ahd_inb(ahd, HESCB_QOFF));
+}
+
+void
+ahd_set_hescb_qoff(struct ahd_softc *ahd, u_int value)
+{
+ ahd_outb(ahd, HESCB_QOFF, value);
+}
+
+u_int
+ahd_get_snscb_qoff(struct ahd_softc *ahd)
+{
+ u_int oldvalue;
+
+ AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
+ oldvalue = ahd_inw(ahd, SNSCB_QOFF);
+ ahd_outw(ahd, SNSCB_QOFF, oldvalue);
+ return (oldvalue);
+}
+
+void
+ahd_set_snscb_qoff(struct ahd_softc *ahd, u_int value)
+{
+ AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
+ ahd_outw(ahd, SNSCB_QOFF, value);
+}
+
+u_int
+ahd_get_sescb_qoff(struct ahd_softc *ahd)
+{
+ AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
+ return (ahd_inb(ahd, SESCB_QOFF));
+}
+
+void
+ahd_set_sescb_qoff(struct ahd_softc *ahd, u_int value)
+{
+ AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
+ ahd_outb(ahd, SESCB_QOFF, value);
+}
+
+u_int
+ahd_get_sdscb_qoff(struct ahd_softc *ahd)
+{
+ AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
+ return (ahd_inb(ahd, SDSCB_QOFF) | (ahd_inb(ahd, SDSCB_QOFF + 1) << 8));
+}
+
+void
+ahd_set_sdscb_qoff(struct ahd_softc *ahd, u_int value)
+{
+ AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
+ ahd_outb(ahd, SDSCB_QOFF, value & 0xFF);
+ ahd_outb(ahd, SDSCB_QOFF+1, (value >> 8) & 0xFF);
+}
+
+u_int
+ahd_inb_scbram(struct ahd_softc *ahd, u_int offset)
+{
+ u_int value;
+ /*
+ * Workaround PCI-X Rev A. hardware bug.
+ * After a host read of SCB memory, the chip
+ * may become confused into thinking prefetch
+ * was required. This starts the discard timer
+ * running and can cause an unexpected discard
+ * timer interrupt. The work around is to read
+ * a normal register prior to the exhaustion of
+ * the discard timer. The mode pointer register
+ * has no side effects and so serves well for
+ * this purpose.
+ *
+ * Razor #528
+ */
+ value = ahd_inb(ahd, offset);
+ if ((ahd->bugs & AHD_PCIX_SCBRAM_RD_BUG) != 0)
+ ahd_inb(ahd, MODE_PTR);
+ return (value);
+}
+
+u_int
+ahd_inw_scbram(struct ahd_softc *ahd, u_int offset)
+{
+ return (ahd_inb_scbram(ahd, offset)
+ | (ahd_inb_scbram(ahd, offset+1) << 8));
+}
+
+uint32_t
+ahd_inl_scbram(struct ahd_softc *ahd, u_int offset)
+{
+ return (ahd_inw_scbram(ahd, offset)
+ | (ahd_inw_scbram(ahd, offset+2) << 16));
+}
+
+uint64_t
+ahd_inq_scbram(struct ahd_softc *ahd, u_int offset)
+{
+ return (ahd_inl_scbram(ahd, offset)
+ | ((uint64_t)ahd_inl_scbram(ahd, offset+4)) << 32);
+}
+
+struct scb *
+ahd_lookup_scb(struct ahd_softc *ahd, u_int tag)
+{
+ struct scb* scb;
+
+ if (tag >= AHD_SCB_MAX)
+ return (NULL);
+ scb = ahd->scb_data.scbindex[tag];
+ if (scb != NULL)
+ ahd_sync_scb(ahd, scb,
+ BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
+ return (scb);
+}
+
+void
+ahd_swap_with_next_hscb(struct ahd_softc *ahd, struct scb *scb)
+{
+ struct hardware_scb *q_hscb;
+ struct map_node *q_hscb_map;
+ uint32_t saved_hscb_busaddr;
+
+ /*
+ * Our queuing method is a bit tricky. The card
+ * knows in advance which HSCB (by address) to download,
+ * and we can't disappoint it. To achieve this, the next
+ * HSCB to download is saved off in ahd->next_queued_hscb.
+ * When we are called to queue "an arbitrary scb",
+ * we copy the contents of the incoming HSCB to the one
+ * the sequencer knows about, swap HSCB pointers and
+ * finally assign the SCB to the tag indexed location
+ * in the scb_array. This makes sure that we can still
+ * locate the correct SCB by SCB_TAG.
+ */
+ q_hscb = ahd->next_queued_hscb;
+ q_hscb_map = ahd->next_queued_hscb_map;
+ saved_hscb_busaddr = q_hscb->hscb_busaddr;
+ memcpy(q_hscb, scb->hscb, sizeof(*scb->hscb));
+ q_hscb->hscb_busaddr = saved_hscb_busaddr;
+ q_hscb->next_hscb_busaddr = scb->hscb->hscb_busaddr;
+
+ /* Now swap HSCB pointers. */
+ ahd->next_queued_hscb = scb->hscb;
+ ahd->next_queued_hscb_map = scb->hscb_map;
+ scb->hscb = q_hscb;
+ scb->hscb_map = q_hscb_map;
+
+ /* Now define the mapping from tag to SCB in the scbindex */
+ ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb;
+}
+
+/*
+ * Tell the sequencer about a new transaction to execute.
+ */
+void
+ahd_queue_scb(struct ahd_softc *ahd, struct scb *scb)
+{
+ ahd_swap_with_next_hscb(ahd, scb);
+
+ if (SCBID_IS_NULL(SCB_GET_TAG(scb)))
+ panic("Attempt to queue invalid SCB tag %x\n",
+ SCB_GET_TAG(scb));
+
+ /*
+ * Keep a history of SCBs we've downloaded in the qinfifo.
+ */
+ ahd->qinfifo[AHD_QIN_WRAP(ahd->qinfifonext)] = SCB_GET_TAG(scb);
+ ahd->qinfifonext++;
+
+ if (scb->sg_count != 0)
+ ahd_setup_data_scb(ahd, scb);
+ else
+ ahd_setup_noxfer_scb(ahd, scb);
+ ahd_setup_scb_common(ahd, scb);
+
+ /*
+ * Make sure our data is consistent from the
+ * perspective of the adapter.
+ */
+ ahd_sync_scb(ahd, scb, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
+
+#ifdef AHD_DEBUG
+ if ((ahd_debug & AHD_SHOW_QUEUE) != 0) {
+ uint64_t host_dataptr;
+
+ host_dataptr = ahd_le64toh(scb->hscb->dataptr);
+ printf("%s: Queueing SCB %d:0x%x bus addr 0x%x - 0x%x%x/0x%x\n",
+ ahd_name(ahd),
+ SCB_GET_TAG(scb), scb->hscb->scsiid,
+ ahd_le32toh(scb->hscb->hscb_busaddr),
+ (u_int)((host_dataptr >> 32) & 0xFFFFFFFF),
+ (u_int)(host_dataptr & 0xFFFFFFFF),
+ ahd_le32toh(scb->hscb->datacnt));
+ }
+#endif
+ /* Tell the adapter about the newly queued SCB */
+ ahd_set_hnscb_qoff(ahd, ahd->qinfifonext);
+}
+
+/************************** Interrupt Processing ******************************/
+void
+ahd_sync_qoutfifo(struct ahd_softc *ahd, int op)
+{
+ ahd_dmamap_sync(ahd, ahd->shared_data_dmat, ahd->shared_data_map.dmamap,
+ /*offset*/0,
+ /*len*/AHD_SCB_MAX * sizeof(struct ahd_completion), op);
+}
+
+void
+ahd_sync_tqinfifo(struct ahd_softc *ahd, int op)
+{
+#ifdef AHD_TARGET_MODE
+ if ((ahd->flags & AHD_TARGETROLE) != 0) {
+ ahd_dmamap_sync(ahd, ahd->shared_data_dmat,
+ ahd->shared_data_map.dmamap,
+ ahd_targetcmd_offset(ahd, 0),
+ sizeof(struct target_cmd) * AHD_TMODE_CMDS,
+ op);
+ }
+#endif
+}
+
+/*
+ * See if the firmware has posted any completed commands
+ * into our in-core command complete fifos.
+ */
+#define AHD_RUN_QOUTFIFO 0x1
+#define AHD_RUN_TQINFIFO 0x2
+u_int
+ahd_check_cmdcmpltqueues(struct ahd_softc *ahd)
+{
+ u_int retval;
+
+ retval = 0;
+ ahd_dmamap_sync(ahd, ahd->shared_data_dmat, ahd->shared_data_map.dmamap,
+ /*offset*/ahd->qoutfifonext * sizeof(*ahd->qoutfifo),
+ /*len*/sizeof(*ahd->qoutfifo), BUS_DMASYNC_POSTREAD);
+ if (ahd->qoutfifo[ahd->qoutfifonext].valid_tag
+ == ahd->qoutfifonext_valid_tag)
+ retval |= AHD_RUN_QOUTFIFO;
+#ifdef AHD_TARGET_MODE
+ if ((ahd->flags & AHD_TARGETROLE) != 0
+ && (ahd->flags & AHD_TQINFIFO_BLOCKED) == 0) {
+ ahd_dmamap_sync(ahd, ahd->shared_data_dmat,
+ ahd->shared_data_map.dmamap,
+ ahd_targetcmd_offset(ahd, ahd->tqinfifofnext),
+ /*len*/sizeof(struct target_cmd),
+ BUS_DMASYNC_POSTREAD);
+ if (ahd->targetcmds[ahd->tqinfifonext].cmd_valid != 0)
+ retval |= AHD_RUN_TQINFIFO;
+ }
+#endif
+ return (retval);
+}
+
+/*
+ * Catch an interrupt from the adapter
+ */
+int
+ahd_intr(struct ahd_softc *ahd)
+{
+ u_int intstat;
+
+ if ((ahd->pause & INTEN) == 0) {
+ /*
+ * Our interrupt is not enabled on the chip
+ * and may be disabled for re-entrancy reasons,
+ * so just return. This is likely just a shared
+ * interrupt.
+ */
+ return (0);
+ }
+
+ /*
+ * Instead of directly reading the interrupt status register,
+ * infer the cause of the interrupt by checking our in-core
+ * completion queues. This avoids a costly PCI bus read in
+ * most cases.
+ */
+ if ((ahd->flags & AHD_ALL_INTERRUPTS) == 0
+ && (ahd_check_cmdcmpltqueues(ahd) != 0))
+ intstat = CMDCMPLT;
+ else
+ intstat = ahd_inb(ahd, INTSTAT);
+
+ if ((intstat & INT_PEND) == 0)
+ return (0);
+
+ if (intstat & CMDCMPLT) {
+ ahd_outb(ahd, CLRINT, CLRCMDINT);
+
+ /*
+ * Ensure that the chip sees that we've cleared
+ * this interrupt before we walk the output fifo.
+ * Otherwise, we may, due to posted bus writes,
+ * clear the interrupt after we finish the scan,
+ * and after the sequencer has added new entries
+ * and asserted the interrupt again.
+ */
+ if ((ahd->bugs & AHD_INTCOLLISION_BUG) != 0) {
+ if (ahd_is_paused(ahd)) {
+ /*
+ * Potentially lost SEQINT.
+ * If SEQINTCODE is non-zero,
+ * simulate the SEQINT.
+ */
+ if (ahd_inb(ahd, SEQINTCODE) != NO_SEQINT)
+ intstat |= SEQINT;
+ }
+ } else {
+ ahd_flush_device_writes(ahd);
+ }
+ ahd_run_qoutfifo(ahd);
+ ahd->cmdcmplt_counts[ahd->cmdcmplt_bucket]++;
+ ahd->cmdcmplt_total++;
+#ifdef AHD_TARGET_MODE
+ if ((ahd->flags & AHD_TARGETROLE) != 0)
+ ahd_run_tqinfifo(ahd, /*paused*/FALSE);
+#endif
+ }
+
+ /*
+ * Handle statuses that may invalidate our cached
+ * copy of INTSTAT separately.
+ */
+ if (intstat == 0xFF && (ahd->features & AHD_REMOVABLE) != 0) {
+ /* Hot eject. Do nothing */
+ } else if (intstat & HWERRINT) {
+ ahd_handle_hwerrint(ahd);
+ } else if ((intstat & (PCIINT|SPLTINT)) != 0) {
+ ahd->bus_intr(ahd);
+ } else {
+
+ if ((intstat & SEQINT) != 0)
+ ahd_handle_seqint(ahd, intstat);
+
+ if ((intstat & SCSIINT) != 0)
+ ahd_handle_scsiint(ahd, intstat);
+ }
+ return (1);
+}
+
+/******************************** Private Inlines *****************************/
static __inline void
ahd_assert_atn(struct ahd_softc *ahd)
{
@@ -280,7 +1024,7 @@ ahd_assert_atn(struct ahd_softc *ahd)
* are currently in a packetized transfer. We could
* just as easily be sending or receiving a message.
*/
-static __inline int
+static int
ahd_currently_packetized(struct ahd_softc *ahd)
{
ahd_mode_state saved_modes;
@@ -6272,6 +7016,24 @@ static const char *termstat_strings[] =
"Not Configured"
};
+/***************************** Timer Facilities *******************************/
+#define ahd_timer_init init_timer
+#define ahd_timer_stop del_timer_sync
+typedef void ahd_linux_callback_t (u_long);
+
+static void
+ahd_timer_reset(ahd_timer_t *timer, int usec, ahd_callback_t *func, void *arg)
+{
+ struct ahd_softc *ahd;
+
+ ahd = (struct ahd_softc *)arg;
+ del_timer(timer);
+ timer->data = (u_long)arg;
+ timer->expires = jiffies + (usec * HZ)/1000000;
+ timer->function = (ahd_linux_callback_t*)func;
+ add_timer(timer);
+}
+
/*
* Start the board, ready for normal operation
*/
diff -urpN linux-2.6.23/drivers/scsi/aic7xxx/aic79xx_inline.h linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic79xx_inline.h
--- linux-2.6.23/drivers/scsi/aic7xxx/aic79xx_inline.h 2007-10-09 21:31:38.000000000 +0100
+++ linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic79xx_inline.h 2007-10-14 15:02:44.000000000 +0100
@@ -63,18 +63,19 @@ static __inline ahd_mode_state ahd_build
static __inline void ahd_extract_mode_state(struct ahd_softc *ahd,
ahd_mode_state state,
ahd_mode *src, ahd_mode *dst);
-static __inline void ahd_set_modes(struct ahd_softc *ahd, ahd_mode src,
- ahd_mode dst);
-static __inline void ahd_update_modes(struct ahd_softc *ahd);
-static __inline void ahd_assert_modes(struct ahd_softc *ahd, ahd_mode srcmode,
- ahd_mode dstmode, const char *file,
- int line);
-static __inline ahd_mode_state ahd_save_modes(struct ahd_softc *ahd);
-static __inline void ahd_restore_modes(struct ahd_softc *ahd,
- ahd_mode_state state);
-static __inline int ahd_is_paused(struct ahd_softc *ahd);
-static __inline void ahd_pause(struct ahd_softc *ahd);
-static __inline void ahd_unpause(struct ahd_softc *ahd);
+
+void ahd_set_modes(struct ahd_softc *ahd, ahd_mode src,
+ ahd_mode dst);
+void ahd_update_modes(struct ahd_softc *ahd);
+void ahd_assert_modes(struct ahd_softc *ahd, ahd_mode srcmode,
+ ahd_mode dstmode, const char *file,
+ int line);
+ahd_mode_state ahd_save_modes(struct ahd_softc *ahd);
+void ahd_restore_modes(struct ahd_softc *ahd,
+ ahd_mode_state state);
+int ahd_is_paused(struct ahd_softc *ahd);
+void ahd_pause(struct ahd_softc *ahd);
+void ahd_unpause(struct ahd_softc *ahd);
static __inline void
ahd_known_modes(struct ahd_softc *ahd, ahd_mode src, ahd_mode dst)
@@ -99,256 +100,37 @@ ahd_extract_mode_state(struct ahd_softc
*dst = (state & DST_MODE) >> DST_MODE_SHIFT;
}
-static __inline void
-ahd_set_modes(struct ahd_softc *ahd, ahd_mode src, ahd_mode dst)
-{
- if (ahd->src_mode == src && ahd->dst_mode == dst)
- return;
-#ifdef AHD_DEBUG
- if (ahd->src_mode == AHD_MODE_UNKNOWN
- || ahd->dst_mode == AHD_MODE_UNKNOWN)
- panic("Setting mode prior to saving it.\n");
- if ((ahd_debug & AHD_SHOW_MODEPTR) != 0)
- printf("%s: Setting mode 0x%x\n", ahd_name(ahd),
- ahd_build_mode_state(ahd, src, dst));
-#endif
- ahd_outb(ahd, MODE_PTR, ahd_build_mode_state(ahd, src, dst));
- ahd->src_mode = src;
- ahd->dst_mode = dst;
-}
-
-static __inline void
-ahd_update_modes(struct ahd_softc *ahd)
-{
- ahd_mode_state mode_ptr;
- ahd_mode src;
- ahd_mode dst;
-
- mode_ptr = ahd_inb(ahd, MODE_PTR);
-#ifdef AHD_DEBUG
- if ((ahd_debug & AHD_SHOW_MODEPTR) != 0)
- printf("Reading mode 0x%x\n", mode_ptr);
-#endif
- ahd_extract_mode_state(ahd, mode_ptr, &src, &dst);
- ahd_known_modes(ahd, src, dst);
-}
-
-static __inline void
-ahd_assert_modes(struct ahd_softc *ahd, ahd_mode srcmode,
- ahd_mode dstmode, const char *file, int line)
-{
-#ifdef AHD_DEBUG
- if ((srcmode & AHD_MK_MSK(ahd->src_mode)) == 0
- || (dstmode & AHD_MK_MSK(ahd->dst_mode)) == 0) {
- panic("%s:%s:%d: Mode assertion failed.\n",
- ahd_name(ahd), file, line);
- }
-#endif
-}
-
-static __inline ahd_mode_state
-ahd_save_modes(struct ahd_softc *ahd)
-{
- if (ahd->src_mode == AHD_MODE_UNKNOWN
- || ahd->dst_mode == AHD_MODE_UNKNOWN)
- ahd_update_modes(ahd);
-
- return (ahd_build_mode_state(ahd, ahd->src_mode, ahd->dst_mode));
-}
-
-static __inline void
-ahd_restore_modes(struct ahd_softc *ahd, ahd_mode_state state)
-{
- ahd_mode src;
- ahd_mode dst;
-
- ahd_extract_mode_state(ahd, state, &src, &dst);
- ahd_set_modes(ahd, src, dst);
-}
-
-#define AHD_ASSERT_MODES(ahd, source, dest) \
- ahd_assert_modes(ahd, source, dest, __FILE__, __LINE__);
-
-/*
- * Determine whether the sequencer has halted code execution.
- * Returns non-zero status if the sequencer is stopped.
- */
-static __inline int
-ahd_is_paused(struct ahd_softc *ahd)
-{
- return ((ahd_inb(ahd, HCNTRL) & PAUSE) != 0);
-}
-
-/*
- * Request that the sequencer stop and wait, indefinitely, for it
- * to stop. The sequencer will only acknowledge that it is paused
- * once it has reached an instruction boundary and PAUSEDIS is
- * cleared in the SEQCTL register. The sequencer may use PAUSEDIS
- * for critical sections.
- */
-static __inline void
-ahd_pause(struct ahd_softc *ahd)
-{
- ahd_outb(ahd, HCNTRL, ahd->pause);
-
- /*
- * Since the sequencer can disable pausing in a critical section, we
- * must loop until it actually stops.
- */
- while (ahd_is_paused(ahd) == 0)
- ;
-}
-
-/*
- * Allow the sequencer to continue program execution.
- * We check here to ensure that no additional interrupt
- * sources that would cause the sequencer to halt have been
- * asserted. If, for example, a SCSI bus reset is detected
- * while we are fielding a different, pausing, interrupt type,
- * we don't want to release the sequencer before going back
- * into our interrupt handler and dealing with this new
- * condition.
- */
-static __inline void
-ahd_unpause(struct ahd_softc *ahd)
-{
- /*
- * Automatically restore our modes to those saved
- * prior to the first change of the mode.
- */
- if (ahd->saved_src_mode != AHD_MODE_UNKNOWN
- && ahd->saved_dst_mode != AHD_MODE_UNKNOWN) {
- if ((ahd->flags & AHD_UPDATE_PEND_CMDS) != 0)
- ahd_reset_cmds_pending(ahd);
- ahd_set_modes(ahd, ahd->saved_src_mode, ahd->saved_dst_mode);
- }
-
- if ((ahd_inb(ahd, INTSTAT) & ~CMDCMPLT) == 0)
- ahd_outb(ahd, HCNTRL, ahd->unpause);
-
- ahd_known_modes(ahd, AHD_MODE_UNKNOWN, AHD_MODE_UNKNOWN);
-}
-
/*********************** Scatter Gather List Handling *************************/
-static __inline void *ahd_sg_setup(struct ahd_softc *ahd, struct scb *scb,
- void *sgptr, dma_addr_t addr,
- bus_size_t len, int last);
-static __inline void ahd_setup_scb_common(struct ahd_softc *ahd,
- struct scb *scb);
-static __inline void ahd_setup_data_scb(struct ahd_softc *ahd,
- struct scb *scb);
-static __inline void ahd_setup_noxfer_scb(struct ahd_softc *ahd,
- struct scb *scb);
-
-static __inline void *
-ahd_sg_setup(struct ahd_softc *ahd, struct scb *scb,
- void *sgptr, dma_addr_t addr, bus_size_t len, int last)
-{
- scb->sg_count++;
- if (sizeof(dma_addr_t) > 4
- && (ahd->flags & AHD_64BIT_ADDRESSING) != 0) {
- struct ahd_dma64_seg *sg;
-
- sg = (struct ahd_dma64_seg *)sgptr;
- sg->addr = ahd_htole64(addr);
- sg->len = ahd_htole32(len | (last ? AHD_DMA_LAST_SEG : 0));
- return (sg + 1);
- } else {
- struct ahd_dma_seg *sg;
-
- sg = (struct ahd_dma_seg *)sgptr;
- sg->addr = ahd_htole32(addr & 0xFFFFFFFF);
- sg->len = ahd_htole32(len | ((addr >> 8) & 0x7F000000)
- | (last ? AHD_DMA_LAST_SEG : 0));
- return (sg + 1);
- }
-}
-
-static __inline void
-ahd_setup_scb_common(struct ahd_softc *ahd, struct scb *scb)
-{
- /* XXX Handle target mode SCBs. */
- scb->crc_retry_count = 0;
- if ((scb->flags & SCB_PACKETIZED) != 0) {
- /* XXX what about ACA?? It is type 4, but TAG_TYPE == 0x3. */
- scb->hscb->task_attribute = scb->hscb->control & SCB_TAG_TYPE;
- } else {
- if (ahd_get_transfer_length(scb) & 0x01)
- scb->hscb->task_attribute = SCB_XFERLEN_ODD;
- else
- scb->hscb->task_attribute = 0;
- }
-
- if (scb->hscb->cdb_len <= MAX_CDB_LEN_WITH_SENSE_ADDR
- || (scb->hscb->cdb_len & SCB_CDB_LEN_PTR) != 0)
- scb->hscb->shared_data.idata.cdb_plus_saddr.sense_addr =
- ahd_htole32(scb->sense_busaddr);
-}
-
-static __inline void
-ahd_setup_data_scb(struct ahd_softc *ahd, struct scb *scb)
-{
- /*
- * Copy the first SG into the "current" data ponter area.
- */
- if ((ahd->flags & AHD_64BIT_ADDRESSING) != 0) {
- struct ahd_dma64_seg *sg;
-
- sg = (struct ahd_dma64_seg *)scb->sg_list;
- scb->hscb->dataptr = sg->addr;
- scb->hscb->datacnt = sg->len;
- } else {
- struct ahd_dma_seg *sg;
- uint32_t *dataptr_words;
-
- sg = (struct ahd_dma_seg *)scb->sg_list;
- dataptr_words = (uint32_t*)&scb->hscb->dataptr;
- dataptr_words[0] = sg->addr;
- dataptr_words[1] = 0;
- if ((ahd->flags & AHD_39BIT_ADDRESSING) != 0) {
- uint64_t high_addr;
-
- high_addr = ahd_le32toh(sg->len) & 0x7F000000;
- scb->hscb->dataptr |= ahd_htole64(high_addr << 8);
- }
- scb->hscb->datacnt = sg->len;
- }
- /*
- * Note where to find the SG entries in bus space.
- * We also set the full residual flag which the
- * sequencer will clear as soon as a data transfer
- * occurs.
- */
- scb->hscb->sgptr = ahd_htole32(scb->sg_list_busaddr|SG_FULL_RESID);
-}
-
-static __inline void
-ahd_setup_noxfer_scb(struct ahd_softc *ahd, struct scb *scb)
-{
- scb->hscb->sgptr = ahd_htole32(SG_LIST_NULL);
- scb->hscb->dataptr = 0;
- scb->hscb->datacnt = 0;
-}
+void *ahd_sg_setup(struct ahd_softc *ahd, struct scb *scb,
+ void *sgptr, dma_addr_t addr,
+ bus_size_t len, int last);
+void ahd_setup_scb_common(struct ahd_softc *ahd,
+ struct scb *scb);
+void ahd_setup_data_scb(struct ahd_softc *ahd,
+ struct scb *scb);
+void ahd_setup_noxfer_scb(struct ahd_softc *ahd,
+ struct scb *scb);
/************************** Memory mapping routines ***************************/
static __inline size_t ahd_sg_size(struct ahd_softc *ahd);
-static __inline void *
- ahd_sg_bus_to_virt(struct ahd_softc *ahd,
- struct scb *scb,
- uint32_t sg_busaddr);
-static __inline uint32_t
- ahd_sg_virt_to_bus(struct ahd_softc *ahd,
- struct scb *scb,
- void *sg);
-static __inline void ahd_sync_scb(struct ahd_softc *ahd,
- struct scb *scb, int op);
-static __inline void ahd_sync_sglist(struct ahd_softc *ahd,
- struct scb *scb, int op);
-static __inline void ahd_sync_sense(struct ahd_softc *ahd,
- struct scb *scb, int op);
-static __inline uint32_t
- ahd_targetcmd_offset(struct ahd_softc *ahd,
- u_int index);
+
+void *
+ ahd_sg_bus_to_virt(struct ahd_softc *ahd,
+ struct scb *scb,
+ uint32_t sg_busaddr);
+uint32_t
+ ahd_sg_virt_to_bus(struct ahd_softc *ahd,
+ struct scb *scb,
+ void *sg);
+void ahd_sync_scb(struct ahd_softc *ahd,
+ struct scb *scb, int op);
+void ahd_sync_sglist(struct ahd_softc *ahd,
+ struct scb *scb, int op);
+void ahd_sync_sense(struct ahd_softc *ahd,
+ struct scb *scb, int op);
+uint32_t
+ ahd_targetcmd_offset(struct ahd_softc *ahd,
+ u_int index);
static __inline size_t
ahd_sg_size(struct ahd_softc *ahd)
@@ -358,104 +140,48 @@ ahd_sg_size(struct ahd_softc *ahd)
return (sizeof(struct ahd_dma_seg));
}
-static __inline void *
-ahd_sg_bus_to_virt(struct ahd_softc *ahd, struct scb *scb, uint32_t sg_busaddr)
-{
- dma_addr_t sg_offset;
-
- /* sg_list_phys points to entry 1, not 0 */
- sg_offset = sg_busaddr - (scb->sg_list_busaddr - ahd_sg_size(ahd));
- return ((uint8_t *)scb->sg_list + sg_offset);
-}
-
-static __inline uint32_t
-ahd_sg_virt_to_bus(struct ahd_softc *ahd, struct scb *scb, void *sg)
-{
- dma_addr_t sg_offset;
-
- /* sg_list_phys points to entry 1, not 0 */
- sg_offset = ((uint8_t *)sg - (uint8_t *)scb->sg_list)
- - ahd_sg_size(ahd);
-
- return (scb->sg_list_busaddr + sg_offset);
-}
-
-static __inline void
-ahd_sync_scb(struct ahd_softc *ahd, struct scb *scb, int op)
-{
- ahd_dmamap_sync(ahd, ahd->scb_data.hscb_dmat,
- scb->hscb_map->dmamap,
- /*offset*/(uint8_t*)scb->hscb - scb->hscb_map->vaddr,
- /*len*/sizeof(*scb->hscb), op);
-}
-
-static __inline void
-ahd_sync_sglist(struct ahd_softc *ahd, struct scb *scb, int op)
-{
- if (scb->sg_count == 0)
- return;
-
- ahd_dmamap_sync(ahd, ahd->scb_data.sg_dmat,
- scb->sg_map->dmamap,
- /*offset*/scb->sg_list_busaddr - ahd_sg_size(ahd),
- /*len*/ahd_sg_size(ahd) * scb->sg_count, op);
-}
-
-static __inline void
-ahd_sync_sense(struct ahd_softc *ahd, struct scb *scb, int op)
-{
- ahd_dmamap_sync(ahd, ahd->scb_data.sense_dmat,
- scb->sense_map->dmamap,
- /*offset*/scb->sense_busaddr,
- /*len*/AHD_SENSE_BUFSIZE, op);
-}
-
-static __inline uint32_t
-ahd_targetcmd_offset(struct ahd_softc *ahd, u_int index)
-{
- return (((uint8_t *)&ahd->targetcmds[index])
- - (uint8_t *)ahd->qoutfifo);
-}
-
/*********************** Miscelaneous Support Functions ***********************/
-static __inline struct ahd_initiator_tinfo *
- ahd_fetch_transinfo(struct ahd_softc *ahd,
- char channel, u_int our_id,
- u_int remote_id,
- struct ahd_tmode_tstate **tstate);
-static __inline uint16_t
- ahd_inw(struct ahd_softc *ahd, u_int port);
-static __inline void ahd_outw(struct ahd_softc *ahd, u_int port,
- u_int value);
-static __inline uint32_t
- ahd_inl(struct ahd_softc *ahd, u_int port);
-static __inline void ahd_outl(struct ahd_softc *ahd, u_int port,
- uint32_t value);
-static __inline uint64_t
- ahd_inq(struct ahd_softc *ahd, u_int port);
-static __inline void ahd_outq(struct ahd_softc *ahd, u_int port,
- uint64_t value);
-static __inline u_int ahd_get_scbptr(struct ahd_softc *ahd);
-static __inline void ahd_set_scbptr(struct ahd_softc *ahd, u_int scbptr);
-static __inline u_int ahd_get_hnscb_qoff(struct ahd_softc *ahd);
-static __inline void ahd_set_hnscb_qoff(struct ahd_softc *ahd, u_int value);
-static __inline u_int ahd_get_hescb_qoff(struct ahd_softc *ahd);
-static __inline void ahd_set_hescb_qoff(struct ahd_softc *ahd, u_int value);
-static __inline u_int ahd_get_snscb_qoff(struct ahd_softc *ahd);
-static __inline void ahd_set_snscb_qoff(struct ahd_softc *ahd, u_int value);
-static __inline u_int ahd_get_sescb_qoff(struct ahd_softc *ahd);
-static __inline void ahd_set_sescb_qoff(struct ahd_softc *ahd, u_int value);
-static __inline u_int ahd_get_sdscb_qoff(struct ahd_softc *ahd);
-static __inline void ahd_set_sdscb_qoff(struct ahd_softc *ahd, u_int value);
-static __inline u_int ahd_inb_scbram(struct ahd_softc *ahd, u_int offset);
-static __inline u_int ahd_inw_scbram(struct ahd_softc *ahd, u_int offset);
-static __inline uint32_t
- ahd_inl_scbram(struct ahd_softc *ahd, u_int offset);
-static __inline uint64_t
- ahd_inq_scbram(struct ahd_softc *ahd, u_int offset);
-static __inline void ahd_swap_with_next_hscb(struct ahd_softc *ahd,
- struct scb *scb);
-static __inline void ahd_queue_scb(struct ahd_softc *ahd, struct scb *scb);
+struct ahd_initiator_tinfo *
+ ahd_fetch_transinfo(struct ahd_softc *ahd,
+ char channel, u_int our_id,
+ u_int remote_id,
+ struct ahd_tmode_tstate **tstate);
+uint16_t
+ ahd_inw(struct ahd_softc *ahd, u_int port);
+void ahd_outw(struct ahd_softc *ahd, u_int port,
+ u_int value);
+uint32_t
+ ahd_inl(struct ahd_softc *ahd, u_int port);
+void ahd_outl(struct ahd_softc *ahd, u_int port,
+ uint32_t value);
+uint64_t
+ ahd_inq(struct ahd_softc *ahd, u_int port);
+void ahd_outq(struct ahd_softc *ahd, u_int port,
+ uint64_t value);
+u_int ahd_get_scbptr(struct ahd_softc *ahd);
+void ahd_set_scbptr(struct ahd_softc *ahd, u_int scbptr);
+u_int ahd_get_hnscb_qoff(struct ahd_softc *ahd);
+void ahd_set_hnscb_qoff(struct ahd_softc *ahd, u_int value);
+u_int ahd_get_hescb_qoff(struct ahd_softc *ahd);
+void ahd_set_hescb_qoff(struct ahd_softc *ahd, u_int value);
+u_int ahd_get_snscb_qoff(struct ahd_softc *ahd);
+void ahd_set_snscb_qoff(struct ahd_softc *ahd, u_int value);
+u_int ahd_get_sescb_qoff(struct ahd_softc *ahd);
+void ahd_set_sescb_qoff(struct ahd_softc *ahd, u_int value);
+u_int ahd_get_sdscb_qoff(struct ahd_softc *ahd);
+void ahd_set_sdscb_qoff(struct ahd_softc *ahd, u_int value);
+u_int ahd_inb_scbram(struct ahd_softc *ahd, u_int offset);
+u_int ahd_inw_scbram(struct ahd_softc *ahd, u_int offset);
+uint32_t
+ ahd_inl_scbram(struct ahd_softc *ahd, u_int offset);
+uint64_t
+ ahd_inq_scbram(struct ahd_softc *ahd, u_int offset);
+struct scb *
+ ahd_lookup_scb(struct ahd_softc *ahd, u_int tag);
+void ahd_swap_with_next_hscb(struct ahd_softc *ahd,
+ struct scb *scb);
+void ahd_queue_scb(struct ahd_softc *ahd, struct scb *scb);
+
static __inline uint8_t *
ahd_get_sense_buf(struct ahd_softc *ahd,
struct scb *scb);
@@ -463,25 +189,7 @@ static __inline uint32_t
ahd_get_sense_bufaddr(struct ahd_softc *ahd,
struct scb *scb);
-/*
- * Return pointers to the transfer negotiation information
- * for the specified our_id/remote_id pair.
- */
-static __inline struct ahd_initiator_tinfo *
-ahd_fetch_transinfo(struct ahd_softc *ahd, char channel, u_int our_id,
- u_int remote_id, struct ahd_tmode_tstate **tstate)
-{
- /*
- * Transfer data structures are stored from the perspective
- * of the target role. Since the parameters for a connection
- * in the initiator role to a given target are the same as
- * when the roles are reversed, we pretend we are the target.
- */
- if (channel == 'B')
- our_id += 8;
- *tstate = ahd->enabled_targets[our_id];
- return (&(*tstate)->transinfo[remote_id]);
-}
+#if 0 /* unused */
#define AHD_COPY_COL_IDX(dst, src) \
do { \
@@ -489,304 +197,7 @@ do { \
dst->hscb->lun = src->hscb->lun; \
} while (0)
-static __inline uint16_t
-ahd_inw(struct ahd_softc *ahd, u_int port)
-{
- /*
- * Read high byte first as some registers increment
- * or have other side effects when the low byte is
- * read.
- */
- uint16_t r = ahd_inb(ahd, port+1) << 8;
- return r | ahd_inb(ahd, port);
-}
-
-static __inline void
-ahd_outw(struct ahd_softc *ahd, u_int port, u_int value)
-{
- /*
- * Write low byte first to accomodate registers
- * such as PRGMCNT where the order maters.
- */
- ahd_outb(ahd, port, value & 0xFF);
- ahd_outb(ahd, port+1, (value >> 8) & 0xFF);
-}
-
-static __inline uint32_t
-ahd_inl(struct ahd_softc *ahd, u_int port)
-{
- return ((ahd_inb(ahd, port))
- | (ahd_inb(ahd, port+1) << 8)
- | (ahd_inb(ahd, port+2) << 16)
- | (ahd_inb(ahd, port+3) << 24));
-}
-
-static __inline void
-ahd_outl(struct ahd_softc *ahd, u_int port, uint32_t value)
-{
- ahd_outb(ahd, port, (value) & 0xFF);
- ahd_outb(ahd, port+1, ((value) >> 8) & 0xFF);
- ahd_outb(ahd, port+2, ((value) >> 16) & 0xFF);
- ahd_outb(ahd, port+3, ((value) >> 24) & 0xFF);
-}
-
-static __inline uint64_t
-ahd_inq(struct ahd_softc *ahd, u_int port)
-{
- return ((ahd_inb(ahd, port))
- | (ahd_inb(ahd, port+1) << 8)
- | (ahd_inb(ahd, port+2) << 16)
- | (ahd_inb(ahd, port+3) << 24)
- | (((uint64_t)ahd_inb(ahd, port+4)) << 32)
- | (((uint64_t)ahd_inb(ahd, port+5)) << 40)
- | (((uint64_t)ahd_inb(ahd, port+6)) << 48)
- | (((uint64_t)ahd_inb(ahd, port+7)) << 56));
-}
-
-static __inline void
-ahd_outq(struct ahd_softc *ahd, u_int port, uint64_t value)
-{
- ahd_outb(ahd, port, value & 0xFF);
- ahd_outb(ahd, port+1, (value >> 8) & 0xFF);
- ahd_outb(ahd, port+2, (value >> 16) & 0xFF);
- ahd_outb(ahd, port+3, (value >> 24) & 0xFF);
- ahd_outb(ahd, port+4, (value >> 32) & 0xFF);
- ahd_outb(ahd, port+5, (value >> 40) & 0xFF);
- ahd_outb(ahd, port+6, (value >> 48) & 0xFF);
- ahd_outb(ahd, port+7, (value >> 56) & 0xFF);
-}
-
-static __inline u_int
-ahd_get_scbptr(struct ahd_softc *ahd)
-{
- AHD_ASSERT_MODES(ahd, ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK),
- ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK));
- return (ahd_inb(ahd, SCBPTR) | (ahd_inb(ahd, SCBPTR + 1) << 8));
-}
-
-static __inline void
-ahd_set_scbptr(struct ahd_softc *ahd, u_int scbptr)
-{
- AHD_ASSERT_MODES(ahd, ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK),
- ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK));
- ahd_outb(ahd, SCBPTR, scbptr & 0xFF);
- ahd_outb(ahd, SCBPTR+1, (scbptr >> 8) & 0xFF);
-}
-
-static __inline u_int
-ahd_get_hnscb_qoff(struct ahd_softc *ahd)
-{
- return (ahd_inw_atomic(ahd, HNSCB_QOFF));
-}
-
-static __inline void
-ahd_set_hnscb_qoff(struct ahd_softc *ahd, u_int value)
-{
- ahd_outw_atomic(ahd, HNSCB_QOFF, value);
-}
-
-static __inline u_int
-ahd_get_hescb_qoff(struct ahd_softc *ahd)
-{
- return (ahd_inb(ahd, HESCB_QOFF));
-}
-
-static __inline void
-ahd_set_hescb_qoff(struct ahd_softc *ahd, u_int value)
-{
- ahd_outb(ahd, HESCB_QOFF, value);
-}
-
-static __inline u_int
-ahd_get_snscb_qoff(struct ahd_softc *ahd)
-{
- u_int oldvalue;
-
- AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
- oldvalue = ahd_inw(ahd, SNSCB_QOFF);
- ahd_outw(ahd, SNSCB_QOFF, oldvalue);
- return (oldvalue);
-}
-
-static __inline void
-ahd_set_snscb_qoff(struct ahd_softc *ahd, u_int value)
-{
- AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
- ahd_outw(ahd, SNSCB_QOFF, value);
-}
-
-static __inline u_int
-ahd_get_sescb_qoff(struct ahd_softc *ahd)
-{
- AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
- return (ahd_inb(ahd, SESCB_QOFF));
-}
-
-static __inline void
-ahd_set_sescb_qoff(struct ahd_softc *ahd, u_int value)
-{
- AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
- ahd_outb(ahd, SESCB_QOFF, value);
-}
-
-static __inline u_int
-ahd_get_sdscb_qoff(struct ahd_softc *ahd)
-{
- AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
- return (ahd_inb(ahd, SDSCB_QOFF) | (ahd_inb(ahd, SDSCB_QOFF + 1) << 8));
-}
-
-static __inline void
-ahd_set_sdscb_qoff(struct ahd_softc *ahd, u_int value)
-{
- AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
- ahd_outb(ahd, SDSCB_QOFF, value & 0xFF);
- ahd_outb(ahd, SDSCB_QOFF+1, (value >> 8) & 0xFF);
-}
-
-static __inline u_int
-ahd_inb_scbram(struct ahd_softc *ahd, u_int offset)
-{
- u_int value;
-
- /*
- * Workaround PCI-X Rev A. hardware bug.
- * After a host read of SCB memory, the chip
- * may become confused into thinking prefetch
- * was required. This starts the discard timer
- * running and can cause an unexpected discard
- * timer interrupt. The work around is to read
- * a normal register prior to the exhaustion of
- * the discard timer. The mode pointer register
- * has no side effects and so serves well for
- * this purpose.
- *
- * Razor #528
- */
- value = ahd_inb(ahd, offset);
- if ((ahd->bugs & AHD_PCIX_SCBRAM_RD_BUG) != 0)
- ahd_inb(ahd, MODE_PTR);
- return (value);
-}
-
-static __inline u_int
-ahd_inw_scbram(struct ahd_softc *ahd, u_int offset)
-{
- return (ahd_inb_scbram(ahd, offset)
- | (ahd_inb_scbram(ahd, offset+1) << 8));
-}
-
-static __inline uint32_t
-ahd_inl_scbram(struct ahd_softc *ahd, u_int offset)
-{
- return (ahd_inw_scbram(ahd, offset)
- | (ahd_inw_scbram(ahd, offset+2) << 16));
-}
-
-static __inline uint64_t
-ahd_inq_scbram(struct ahd_softc *ahd, u_int offset)
-{
- return (ahd_inl_scbram(ahd, offset)
- | ((uint64_t)ahd_inl_scbram(ahd, offset+4)) << 32);
-}
-
-static __inline struct scb *
-ahd_lookup_scb(struct ahd_softc *ahd, u_int tag)
-{
- struct scb* scb;
-
- if (tag >= AHD_SCB_MAX)
- return (NULL);
- scb = ahd->scb_data.scbindex[tag];
- if (scb != NULL)
- ahd_sync_scb(ahd, scb,
- BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
- return (scb);
-}
-
-static __inline void
-ahd_swap_with_next_hscb(struct ahd_softc *ahd, struct scb *scb)
-{
- struct hardware_scb *q_hscb;
- struct map_node *q_hscb_map;
- uint32_t saved_hscb_busaddr;
-
- /*
- * Our queuing method is a bit tricky. The card
- * knows in advance which HSCB (by address) to download,
- * and we can't disappoint it. To achieve this, the next
- * HSCB to download is saved off in ahd->next_queued_hscb.
- * When we are called to queue "an arbitrary scb",
- * we copy the contents of the incoming HSCB to the one
- * the sequencer knows about, swap HSCB pointers and
- * finally assign the SCB to the tag indexed location
- * in the scb_array. This makes sure that we can still
- * locate the correct SCB by SCB_TAG.
- */
- q_hscb = ahd->next_queued_hscb;
- q_hscb_map = ahd->next_queued_hscb_map;
- saved_hscb_busaddr = q_hscb->hscb_busaddr;
- memcpy(q_hscb, scb->hscb, sizeof(*scb->hscb));
- q_hscb->hscb_busaddr = saved_hscb_busaddr;
- q_hscb->next_hscb_busaddr = scb->hscb->hscb_busaddr;
-
- /* Now swap HSCB pointers. */
- ahd->next_queued_hscb = scb->hscb;
- ahd->next_queued_hscb_map = scb->hscb_map;
- scb->hscb = q_hscb;
- scb->hscb_map = q_hscb_map;
-
- /* Now define the mapping from tag to SCB in the scbindex */
- ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb;
-}
-
-/*
- * Tell the sequencer about a new transaction to execute.
- */
-static __inline void
-ahd_queue_scb(struct ahd_softc *ahd, struct scb *scb)
-{
- ahd_swap_with_next_hscb(ahd, scb);
-
- if (SCBID_IS_NULL(SCB_GET_TAG(scb)))
- panic("Attempt to queue invalid SCB tag %x\n",
- SCB_GET_TAG(scb));
-
- /*
- * Keep a history of SCBs we've downloaded in the qinfifo.
- */
- ahd->qinfifo[AHD_QIN_WRAP(ahd->qinfifonext)] = SCB_GET_TAG(scb);
- ahd->qinfifonext++;
-
- if (scb->sg_count != 0)
- ahd_setup_data_scb(ahd, scb);
- else
- ahd_setup_noxfer_scb(ahd, scb);
- ahd_setup_scb_common(ahd, scb);
-
- /*
- * Make sure our data is consistent from the
- * perspective of the adapter.
- */
- ahd_sync_scb(ahd, scb, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
-
-#ifdef AHD_DEBUG
- if ((ahd_debug & AHD_SHOW_QUEUE) != 0) {
- uint64_t host_dataptr;
-
- host_dataptr = ahd_le64toh(scb->hscb->dataptr);
- printf("%s: Queueing SCB %d:0x%x bus addr 0x%x - 0x%x%x/0x%x\n",
- ahd_name(ahd),
- SCB_GET_TAG(scb), scb->hscb->scsiid,
- ahd_le32toh(scb->hscb->hscb_busaddr),
- (u_int)((host_dataptr >> 32) & 0xFFFFFFFF),
- (u_int)(host_dataptr & 0xFFFFFFFF),
- ahd_le32toh(scb->hscb->datacnt));
- }
#endif
- /* Tell the adapter about the newly queued SCB */
- ahd_set_hnscb_qoff(ahd, ahd->qinfifonext);
-}
static __inline uint8_t *
ahd_get_sense_buf(struct ahd_softc *ahd, struct scb *scb)
@@ -801,151 +212,9 @@ ahd_get_sense_bufaddr(struct ahd_softc *
}
/************************** Interrupt Processing ******************************/
-static __inline void ahd_sync_qoutfifo(struct ahd_softc *ahd, int op);
-static __inline void ahd_sync_tqinfifo(struct ahd_softc *ahd, int op);
-static __inline u_int ahd_check_cmdcmpltqueues(struct ahd_softc *ahd);
-static __inline int ahd_intr(struct ahd_softc *ahd);
-
-static __inline void
-ahd_sync_qoutfifo(struct ahd_softc *ahd, int op)
-{
- ahd_dmamap_sync(ahd, ahd->shared_data_dmat, ahd->shared_data_map.dmamap,
- /*offset*/0,
- /*len*/AHD_SCB_MAX * sizeof(struct ahd_completion), op);
-}
-
-static __inline void
-ahd_sync_tqinfifo(struct ahd_softc *ahd, int op)
-{
-#ifdef AHD_TARGET_MODE
- if ((ahd->flags & AHD_TARGETROLE) != 0) {
- ahd_dmamap_sync(ahd, ahd->shared_data_dmat,
- ahd->shared_data_map.dmamap,
- ahd_targetcmd_offset(ahd, 0),
- sizeof(struct target_cmd) * AHD_TMODE_CMDS,
- op);
- }
-#endif
-}
-
-/*
- * See if the firmware has posted any completed commands
- * into our in-core command complete fifos.
- */
-#define AHD_RUN_QOUTFIFO 0x1
-#define AHD_RUN_TQINFIFO 0x2
-static __inline u_int
-ahd_check_cmdcmpltqueues(struct ahd_softc *ahd)
-{
- u_int retval;
-
- retval = 0;
- ahd_dmamap_sync(ahd, ahd->shared_data_dmat, ahd->shared_data_map.dmamap,
- /*offset*/ahd->qoutfifonext * sizeof(*ahd->qoutfifo),
- /*len*/sizeof(*ahd->qoutfifo), BUS_DMASYNC_POSTREAD);
- if (ahd->qoutfifo[ahd->qoutfifonext].valid_tag
- == ahd->qoutfifonext_valid_tag)
- retval |= AHD_RUN_QOUTFIFO;
-#ifdef AHD_TARGET_MODE
- if ((ahd->flags & AHD_TARGETROLE) != 0
- && (ahd->flags & AHD_TQINFIFO_BLOCKED) == 0) {
- ahd_dmamap_sync(ahd, ahd->shared_data_dmat,
- ahd->shared_data_map.dmamap,
- ahd_targetcmd_offset(ahd, ahd->tqinfifofnext),
- /*len*/sizeof(struct target_cmd),
- BUS_DMASYNC_POSTREAD);
- if (ahd->targetcmds[ahd->tqinfifonext].cmd_valid != 0)
- retval |= AHD_RUN_TQINFIFO;
- }
-#endif
- return (retval);
-}
-
-/*
- * Catch an interrupt from the adapter
- */
-static __inline int
-ahd_intr(struct ahd_softc *ahd)
-{
- u_int intstat;
-
- if ((ahd->pause & INTEN) == 0) {
- /*
- * Our interrupt is not enabled on the chip
- * and may be disabled for re-entrancy reasons,
- * so just return. This is likely just a shared
- * interrupt.
- */
- return (0);
- }
-
- /*
- * Instead of directly reading the interrupt status register,
- * infer the cause of the interrupt by checking our in-core
- * completion queues. This avoids a costly PCI bus read in
- * most cases.
- */
- if ((ahd->flags & AHD_ALL_INTERRUPTS) == 0
- && (ahd_check_cmdcmpltqueues(ahd) != 0))
- intstat = CMDCMPLT;
- else
- intstat = ahd_inb(ahd, INTSTAT);
-
- if ((intstat & INT_PEND) == 0)
- return (0);
-
- if (intstat & CMDCMPLT) {
- ahd_outb(ahd, CLRINT, CLRCMDINT);
-
- /*
- * Ensure that the chip sees that we've cleared
- * this interrupt before we walk the output fifo.
- * Otherwise, we may, due to posted bus writes,
- * clear the interrupt after we finish the scan,
- * and after the sequencer has added new entries
- * and asserted the interrupt again.
- */
- if ((ahd->bugs & AHD_INTCOLLISION_BUG) != 0) {
- if (ahd_is_paused(ahd)) {
- /*
- * Potentially lost SEQINT.
- * If SEQINTCODE is non-zero,
- * simulate the SEQINT.
- */
- if (ahd_inb(ahd, SEQINTCODE) != NO_SEQINT)
- intstat |= SEQINT;
- }
- } else {
- ahd_flush_device_writes(ahd);
- }
- ahd_run_qoutfifo(ahd);
- ahd->cmdcmplt_counts[ahd->cmdcmplt_bucket]++;
- ahd->cmdcmplt_total++;
-#ifdef AHD_TARGET_MODE
- if ((ahd->flags & AHD_TARGETROLE) != 0)
- ahd_run_tqinfifo(ahd, /*paused*/FALSE);
-#endif
- }
-
- /*
- * Handle statuses that may invalidate our cached
- * copy of INTSTAT separately.
- */
- if (intstat == 0xFF && (ahd->features & AHD_REMOVABLE) != 0) {
- /* Hot eject. Do nothing */
- } else if (intstat & HWERRINT) {
- ahd_handle_hwerrint(ahd);
- } else if ((intstat & (PCIINT|SPLTINT)) != 0) {
- ahd->bus_intr(ahd);
- } else {
-
- if ((intstat & SEQINT) != 0)
- ahd_handle_seqint(ahd, intstat);
-
- if ((intstat & SCSIINT) != 0)
- ahd_handle_scsiint(ahd, intstat);
- }
- return (1);
-}
+void ahd_sync_qoutfifo(struct ahd_softc *ahd, int op);
+void ahd_sync_tqinfifo(struct ahd_softc *ahd, int op);
+u_int ahd_check_cmdcmpltqueues(struct ahd_softc *ahd);
+int ahd_intr(struct ahd_softc *ahd);
#endif /* _AIC79XX_INLINE_H_ */
diff -urpN linux-2.6.23/drivers/scsi/aic7xxx/aic79xx_osm.c linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic79xx_osm.c
--- linux-2.6.23/drivers/scsi/aic7xxx/aic79xx_osm.c 2007-10-09 21:31:38.000000000 +0100
+++ linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic79xx_osm.c 2007-10-14 15:02:44.000000000 +0100
@@ -369,10 +369,166 @@ static void ahd_release_simq(struct ahd_
static int ahd_linux_unit;
+/************************** OS Utility Wrappers *******************************/
+void ahd_delay(long);
+void
+ahd_delay(long usec)
+{
+ /*
+ * udelay on Linux can have problems for
+ * multi-millisecond waits. Wait at most
+ * 1024us per call.
+ */
+ while (usec > 0) {
+ udelay(usec % 1024);
+ usec -= 1024;
+ }
+}
+
+
+/***************************** Low Level I/O **********************************/
+uint8_t ahd_inb(struct ahd_softc * ahd, long port);
+uint16_t ahd_inw_atomic(struct ahd_softc * ahd, long port);
+void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val);
+void ahd_outw_atomic(struct ahd_softc * ahd,
+ long port, uint16_t val);
+void ahd_outsb(struct ahd_softc * ahd, long port,
+ uint8_t *, int count);
+void ahd_insb(struct ahd_softc * ahd, long port,
+ uint8_t *, int count);
+
+uint8_t
+ahd_inb(struct ahd_softc * ahd, long port)
+{
+ uint8_t x;
+
+ if (ahd->tags[0] == BUS_SPACE_MEMIO) {
+ x = readb(ahd->bshs[0].maddr + port);
+ } else {
+ x = inb(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
+ }
+ mb();
+ return (x);
+}
+
+uint16_t
+ahd_inw_atomic(struct ahd_softc * ahd, long port)
+{
+ uint8_t x;
+
+ if (ahd->tags[0] == BUS_SPACE_MEMIO) {
+ x = readw(ahd->bshs[0].maddr + port);
+ } else {
+ x = inw(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
+ }
+ mb();
+ return (x);
+}
+
+void
+ahd_outb(struct ahd_softc * ahd, long port, uint8_t val)
+{
+ if (ahd->tags[0] == BUS_SPACE_MEMIO) {
+ writeb(val, ahd->bshs[0].maddr + port);
+ } else {
+ outb(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
+ }
+ mb();
+}
+
+void
+ahd_outw_atomic(struct ahd_softc * ahd, long port, uint16_t val)
+{
+ if (ahd->tags[0] == BUS_SPACE_MEMIO) {
+ writew(val, ahd->bshs[0].maddr + port);
+ } else {
+ outw(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
+ }
+ mb();
+}
+
+void
+ahd_outsb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
+{
+ int i;
+
+ /*
+ * There is probably a more efficient way to do this on Linux
+ * but we don't use this for anything speed critical and this
+ * should work.
+ */
+ for (i = 0; i < count; i++)
+ ahd_outb(ahd, port, *array++);
+}
+
+void
+ahd_insb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
+{
+ int i;
+
+ /*
+ * There is probably a more efficient way to do this on Linux
+ * but we don't use this for anything speed critical and this
+ * should work.
+ */
+ for (i = 0; i < count; i++)
+ *array++ = ahd_inb(ahd, port);
+}
+
+/******************************* PCI Routines *********************************/
+uint32_t
+ahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width)
+{
+ switch (width) {
+ case 1:
+ {
+ uint8_t retval;
+
+ pci_read_config_byte(pci, reg, &retval);
+ return (retval);
+ }
+ case 2:
+ {
+ uint16_t retval;
+ pci_read_config_word(pci, reg, &retval);
+ return (retval);
+ }
+ case 4:
+ {
+ uint32_t retval;
+ pci_read_config_dword(pci, reg, &retval);
+ return (retval);
+ }
+ default:
+ panic("ahd_pci_read_config: Read size too big");
+ /* NOTREACHED */
+ return (0);
+ }
+}
+
+void
+ahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width)
+{
+ switch (width) {
+ case 1:
+ pci_write_config_byte(pci, reg, value);
+ break;
+ case 2:
+ pci_write_config_word(pci, reg, value);
+ break;
+ case 4:
+ pci_write_config_dword(pci, reg, value);
+ break;
+ default:
+ panic("ahd_pci_write_config: Write size too big");
+ /* NOTREACHED */
+ }
+}
+
/****************************** Inlines ***************************************/
-static __inline void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*);
+static void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*);
-static __inline void
+static void
ahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb)
{
struct scsi_cmnd *cmd;
@@ -432,7 +588,7 @@ ahd_linux_queue(struct scsi_cmnd * cmd,
return rtn;
}
-static inline struct scsi_target **
+static struct scsi_target **
ahd_linux_target_in_softc(struct scsi_target *starget)
{
struct ahd_softc *ahd =
diff -urpN linux-2.6.23/drivers/scsi/aic7xxx/aic79xx_osm.h linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic79xx_osm.h
--- linux-2.6.23/drivers/scsi/aic7xxx/aic79xx_osm.h 2007-10-09 21:31:38.000000000 +0100
+++ linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic79xx_osm.h 2007-10-14 15:02:44.000000000 +0100
@@ -222,22 +222,6 @@ typedef struct timer_list ahd_timer_t;
/***************************** Timer Facilities *******************************/
#define ahd_timer_init init_timer
#define ahd_timer_stop del_timer_sync
-typedef void ahd_linux_callback_t (u_long);
-static __inline void ahd_timer_reset(ahd_timer_t *timer, int usec,
- ahd_callback_t *func, void *arg);
-
-static __inline void
-ahd_timer_reset(ahd_timer_t *timer, int usec, ahd_callback_t *func, void *arg)
-{
- struct ahd_softc *ahd;
-
- ahd = (struct ahd_softc *)arg;
- del_timer(timer);
- timer->data = (u_long)arg;
- timer->expires = jiffies + (usec * HZ)/1000000;
- timer->function = (ahd_linux_callback_t*)func;
- add_timer(timer);
-}
/***************************** SMP support ************************************/
#include <linux/spinlock.h>
@@ -386,111 +370,19 @@ struct ahd_platform_data {
#define malloc(size, type, flags) kmalloc(size, flags)
#define free(ptr, type) kfree(ptr)
-static __inline void ahd_delay(long);
-static __inline void
-ahd_delay(long usec)
-{
- /*
- * udelay on Linux can have problems for
- * multi-millisecond waits. Wait at most
- * 1024us per call.
- */
- while (usec > 0) {
- udelay(usec % 1024);
- usec -= 1024;
- }
-}
-
+void ahd_delay(long);
/***************************** Low Level I/O **********************************/
-static __inline uint8_t ahd_inb(struct ahd_softc * ahd, long port);
-static __inline uint16_t ahd_inw_atomic(struct ahd_softc * ahd, long port);
-static __inline void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val);
-static __inline void ahd_outw_atomic(struct ahd_softc * ahd,
+uint8_t ahd_inb(struct ahd_softc * ahd, long port);
+uint16_t ahd_inw_atomic(struct ahd_softc * ahd, long port);
+void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val);
+void ahd_outw_atomic(struct ahd_softc * ahd,
long port, uint16_t val);
-static __inline void ahd_outsb(struct ahd_softc * ahd, long port,
+void ahd_outsb(struct ahd_softc * ahd, long port,
uint8_t *, int count);
-static __inline void ahd_insb(struct ahd_softc * ahd, long port,
+void ahd_insb(struct ahd_softc * ahd, long port,
uint8_t *, int count);
-static __inline uint8_t
-ahd_inb(struct ahd_softc * ahd, long port)
-{
- uint8_t x;
-
- if (ahd->tags[0] == BUS_SPACE_MEMIO) {
- x = readb(ahd->bshs[0].maddr + port);
- } else {
- x = inb(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
- }
- mb();
- return (x);
-}
-
-static __inline uint16_t
-ahd_inw_atomic(struct ahd_softc * ahd, long port)
-{
- uint8_t x;
-
- if (ahd->tags[0] == BUS_SPACE_MEMIO) {
- x = readw(ahd->bshs[0].maddr + port);
- } else {
- x = inw(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
- }
- mb();
- return (x);
-}
-
-static __inline void
-ahd_outb(struct ahd_softc * ahd, long port, uint8_t val)
-{
- if (ahd->tags[0] == BUS_SPACE_MEMIO) {
- writeb(val, ahd->bshs[0].maddr + port);
- } else {
- outb(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
- }
- mb();
-}
-
-static __inline void
-ahd_outw_atomic(struct ahd_softc * ahd, long port, uint16_t val)
-{
- if (ahd->tags[0] == BUS_SPACE_MEMIO) {
- writew(val, ahd->bshs[0].maddr + port);
- } else {
- outw(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
- }
- mb();
-}
-
-static __inline void
-ahd_outsb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
-{
- int i;
-
- /*
- * There is probably a more efficient way to do this on Linux
- * but we don't use this for anything speed critical and this
- * should work.
- */
- for (i = 0; i < count; i++)
- ahd_outb(ahd, port, *array++);
-}
-
-static __inline void
-ahd_insb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
-{
- int i;
-
- /*
- * There is probably a more efficient way to do this on Linux
- * but we don't use this for anything speed critical and this
- * should work.
- */
- for (i = 0; i < count; i++)
- *array++ = ahd_inb(ahd, port);
-}
-
/**************************** Initialization **********************************/
int ahd_linux_register_host(struct ahd_softc *,
struct scsi_host_template *);
@@ -593,62 +485,12 @@ void ahd_linux_pci_exit(void);
int ahd_pci_map_registers(struct ahd_softc *ahd);
int ahd_pci_map_int(struct ahd_softc *ahd);
-static __inline uint32_t ahd_pci_read_config(ahd_dev_softc_t pci,
+uint32_t ahd_pci_read_config(ahd_dev_softc_t pci,
int reg, int width);
-
-static __inline uint32_t
-ahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width)
-{
- switch (width) {
- case 1:
- {
- uint8_t retval;
-
- pci_read_config_byte(pci, reg, &retval);
- return (retval);
- }
- case 2:
- {
- uint16_t retval;
- pci_read_config_word(pci, reg, &retval);
- return (retval);
- }
- case 4:
- {
- uint32_t retval;
- pci_read_config_dword(pci, reg, &retval);
- return (retval);
- }
- default:
- panic("ahd_pci_read_config: Read size too big");
- /* NOTREACHED */
- return (0);
- }
-}
-
-static __inline void ahd_pci_write_config(ahd_dev_softc_t pci,
+void ahd_pci_write_config(ahd_dev_softc_t pci,
int reg, uint32_t value,
int width);
-static __inline void
-ahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width)
-{
- switch (width) {
- case 1:
- pci_write_config_byte(pci, reg, value);
- break;
- case 2:
- pci_write_config_word(pci, reg, value);
- break;
- case 4:
- pci_write_config_dword(pci, reg, value);
- break;
- default:
- panic("ahd_pci_write_config: Write size too big");
- /* NOTREACHED */
- }
-}
-
static __inline int ahd_get_pci_function(ahd_dev_softc_t);
static __inline int
ahd_get_pci_function(ahd_dev_softc_t pci)
diff -urpN linux-2.6.23/drivers/scsi/aic7xxx/aic7xxx_core.c linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic7xxx_core.c
--- linux-2.6.23/drivers/scsi/aic7xxx/aic7xxx_core.c 2007-10-09 21:31:38.000000000 +0100
+++ linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic7xxx_core.c 2007-10-14 15:02:44.000000000 +0100
@@ -237,6 +237,510 @@ static void ahc_update_scsiid(struct ah
static int ahc_handle_target_cmd(struct ahc_softc *ahc,
struct target_cmd *cmd);
#endif
+
+/************************* Sequencer Execution Control ************************/
+/*
+ * Work around any chip bugs related to halting sequencer execution.
+ * On Ultra2 controllers, we must clear the CIOBUS stretch signal by
+ * reading a register that will set this signal and deassert it.
+ * Without this workaround, if the chip is paused, by an interrupt or
+ * manual pause while accessing scb ram, accesses to certain registers
+ * will hang the system (infinite pci retries).
+ */
+void
+ahc_pause_bug_fix(struct ahc_softc *ahc)
+{
+ if ((ahc->features & AHC_ULTRA2) != 0)
+ (void)ahc_inb(ahc, CCSCBCTL);
+}
+
+/*
+ * Determine whether the sequencer has halted code execution.
+ * Returns non-zero status if the sequencer is stopped.
+ */
+int
+ahc_is_paused(struct ahc_softc *ahc)
+{
+ return ((ahc_inb(ahc, HCNTRL) & PAUSE) != 0);
+}
+
+/*
+ * Request that the sequencer stop and wait, indefinitely, for it
+ * to stop. The sequencer will only acknowledge that it is paused
+ * once it has reached an instruction boundary and PAUSEDIS is
+ * cleared in the SEQCTL register. The sequencer may use PAUSEDIS
+ * for critical sections.
+ */
+void
+ahc_pause(struct ahc_softc *ahc)
+{
+ ahc_outb(ahc, HCNTRL, ahc->pause);
+
+ /*
+ * Since the sequencer can disable pausing in a critical section, we
+ * must loop until it actually stops.
+ */
+ while (ahc_is_paused(ahc) == 0)
+ ;
+
+ ahc_pause_bug_fix(ahc);
+}
+
+/*
+ * Allow the sequencer to continue program execution.
+ * We check here to ensure that no additional interrupt
+ * sources that would cause the sequencer to halt have been
+ * asserted. If, for example, a SCSI bus reset is detected
+ * while we are fielding a different, pausing, interrupt type,
+ * we don't want to release the sequencer before going back
+ * into our interrupt handler and dealing with this new
+ * condition.
+ */
+void
+ahc_unpause(struct ahc_softc *ahc)
+{
+ if ((ahc_inb(ahc, INTSTAT) & (SCSIINT | SEQINT | BRKADRINT)) == 0)
+ ahc_outb(ahc, HCNTRL, ahc->unpause);
+}
+
+/************************** Memory mapping routines ***************************/
+struct ahc_dma_seg *
+ahc_sg_bus_to_virt(struct scb *scb, uint32_t sg_busaddr)
+{
+ int sg_index;
+
+ sg_index = (sg_busaddr - scb->sg_list_phys)/sizeof(struct ahc_dma_seg);
+ /* sg_list_phys points to entry 1, not 0 */
+ sg_index++;
+
+ return (&scb->sg_list[sg_index]);
+}
+
+uint32_t
+ahc_sg_virt_to_bus(struct scb *scb, struct ahc_dma_seg *sg)
+{
+ int sg_index;
+
+ /* sg_list_phys points to entry 1, not 0 */
+ sg_index = sg - &scb->sg_list[1];
+
+ return (scb->sg_list_phys + (sg_index * sizeof(*scb->sg_list)));
+}
+
+uint32_t
+ahc_hscb_busaddr(struct ahc_softc *ahc, u_int index)
+{
+ return (ahc->scb_data->hscb_busaddr
+ + (sizeof(struct hardware_scb) * index));
+}
+
+void
+ahc_sync_scb(struct ahc_softc *ahc, struct scb *scb, int op)
+{
+ ahc_dmamap_sync(ahc, ahc->scb_data->hscb_dmat,
+ ahc->scb_data->hscb_dmamap,
+ /*offset*/(scb->hscb - ahc->hscbs) * sizeof(*scb->hscb),
+ /*len*/sizeof(*scb->hscb), op);
+}
+
+void
+ahc_sync_sglist(struct ahc_softc *ahc, struct scb *scb, int op)
+{
+ if (scb->sg_count == 0)
+ return;
+
+ ahc_dmamap_sync(ahc, ahc->scb_data->sg_dmat, scb->sg_map->sg_dmamap,
+ /*offset*/(scb->sg_list - scb->sg_map->sg_vaddr)
+ * sizeof(struct ahc_dma_seg),
+ /*len*/sizeof(struct ahc_dma_seg) * scb->sg_count, op);
+}
+
+uint32_t
+ahc_targetcmd_offset(struct ahc_softc *ahc, u_int index)
+{
+ return (((uint8_t *)&ahc->targetcmds[index]) - ahc->qoutfifo);
+}
+
+/*********************** Miscelaneous Support Functions ***********************/
+/*
+ * Determine whether the sequencer reported a residual
+ * for this SCB/transaction.
+ */
+void
+ahc_update_residual(struct ahc_softc *ahc, struct scb *scb)
+{
+ uint32_t sgptr;
+
+ sgptr = ahc_le32toh(scb->hscb->sgptr);
+ if ((sgptr & SG_RESID_VALID) != 0)
+ ahc_calc_residual(ahc, scb);
+}
+
+/*
+ * Return pointers to the transfer negotiation information
+ * for the specified our_id/remote_id pair.
+ */
+struct ahc_initiator_tinfo *
+ahc_fetch_transinfo(struct ahc_softc *ahc, char channel, u_int our_id,
+ u_int remote_id, struct ahc_tmode_tstate **tstate)
+{
+ /*
+ * Transfer data structures are stored from the perspective
+ * of the target role. Since the parameters for a connection
+ * in the initiator role to a given target are the same as
+ * when the roles are reversed, we pretend we are the target.
+ */
+ if (channel == 'B')
+ our_id += 8;
+ *tstate = ahc->enabled_targets[our_id];
+ return (&(*tstate)->transinfo[remote_id]);
+}
+
+uint16_t
+ahc_inw(struct ahc_softc *ahc, u_int port)
+{
+ uint16_t r = ahc_inb(ahc, port+1) << 8;
+ return r | ahc_inb(ahc, port);
+}
+
+void
+ahc_outw(struct ahc_softc *ahc, u_int port, u_int value)
+{
+ ahc_outb(ahc, port, value & 0xFF);
+ ahc_outb(ahc, port+1, (value >> 8) & 0xFF);
+}
+
+uint32_t
+ahc_inl(struct ahc_softc *ahc, u_int port)
+{
+ return ((ahc_inb(ahc, port))
+ | (ahc_inb(ahc, port+1) << 8)
+ | (ahc_inb(ahc, port+2) << 16)
+ | (ahc_inb(ahc, port+3) << 24));
+}
+
+void
+ahc_outl(struct ahc_softc *ahc, u_int port, uint32_t value)
+{
+ ahc_outb(ahc, port, (value) & 0xFF);
+ ahc_outb(ahc, port+1, ((value) >> 8) & 0xFF);
+ ahc_outb(ahc, port+2, ((value) >> 16) & 0xFF);
+ ahc_outb(ahc, port+3, ((value) >> 24) & 0xFF);
+}
+
+uint64_t
+ahc_inq(struct ahc_softc *ahc, u_int port)
+{
+ return ((ahc_inb(ahc, port))
+ | (ahc_inb(ahc, port+1) << 8)
+ | (ahc_inb(ahc, port+2) << 16)
+ | (ahc_inb(ahc, port+3) << 24)
+ | (((uint64_t)ahc_inb(ahc, port+4)) << 32)
+ | (((uint64_t)ahc_inb(ahc, port+5)) << 40)
+ | (((uint64_t)ahc_inb(ahc, port+6)) << 48)
+ | (((uint64_t)ahc_inb(ahc, port+7)) << 56));
+}
+
+void
+ahc_outq(struct ahc_softc *ahc, u_int port, uint64_t value)
+{
+ ahc_outb(ahc, port, value & 0xFF);
+ ahc_outb(ahc, port+1, (value >> 8) & 0xFF);
+ ahc_outb(ahc, port+2, (value >> 16) & 0xFF);
+ ahc_outb(ahc, port+3, (value >> 24) & 0xFF);
+ ahc_outb(ahc, port+4, (value >> 32) & 0xFF);
+ ahc_outb(ahc, port+5, (value >> 40) & 0xFF);
+ ahc_outb(ahc, port+6, (value >> 48) & 0xFF);
+ ahc_outb(ahc, port+7, (value >> 56) & 0xFF);
+}
+
+/*
+ * Get a free scb. If there are none, see if we can allocate a new SCB.
+ */
+struct scb *
+ahc_get_scb(struct ahc_softc *ahc)
+{
+ struct scb *scb;
+
+ if ((scb = SLIST_FIRST(&ahc->scb_data->free_scbs)) == NULL) {
+ ahc_alloc_scbs(ahc);
+ scb = SLIST_FIRST(&ahc->scb_data->free_scbs);
+ if (scb == NULL)
+ return (NULL);
+ }
+ SLIST_REMOVE_HEAD(&ahc->scb_data->free_scbs, links.sle);
+ return (scb);
+}
+
+/*
+ * Return an SCB resource to the free list.
+ */
+void
+ahc_free_scb(struct ahc_softc *ahc, struct scb *scb)
+{
+ struct hardware_scb *hscb;
+
+ hscb = scb->hscb;
+ /* Clean up for the next user */
+ ahc->scb_data->scbindex[hscb->tag] = NULL;
+ scb->flags = SCB_FREE;
+ hscb->control = 0;
+
+ SLIST_INSERT_HEAD(&ahc->scb_data->free_scbs, scb, links.sle);
+
+ /* Notify the OSM that a resource is now available. */
+ ahc_platform_scb_free(ahc, scb);
+}
+
+struct scb *
+ahc_lookup_scb(struct ahc_softc *ahc, u_int tag)
+{
+ struct scb* scb;
+
+ scb = ahc->scb_data->scbindex[tag];
+ if (scb != NULL)
+ ahc_sync_scb(ahc, scb,
+ BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
+ return (scb);
+}
+
+void
+ahc_swap_with_next_hscb(struct ahc_softc *ahc, struct scb *scb)
+{
+ struct hardware_scb *q_hscb;
+ u_int saved_tag;
+
+ /*
+ * Our queuing method is a bit tricky. The card
+ * knows in advance which HSCB to download, and we
+ * can't disappoint it. To achieve this, the next
+ * SCB to download is saved off in ahc->next_queued_scb.
+ * When we are called to queue "an arbitrary scb",
+ * we copy the contents of the incoming HSCB to the one
+ * the sequencer knows about, swap HSCB pointers and
+ * finally assign the SCB to the tag indexed location
+ * in the scb_array. This makes sure that we can still
+ * locate the correct SCB by SCB_TAG.
+ */
+ q_hscb = ahc->next_queued_scb->hscb;
+ saved_tag = q_hscb->tag;
+ memcpy(q_hscb, scb->hscb, sizeof(*scb->hscb));
+ if ((scb->flags & SCB_CDB32_PTR) != 0) {
+ q_hscb->shared_data.cdb_ptr =
+ ahc_htole32(ahc_hscb_busaddr(ahc, q_hscb->tag)
+ + offsetof(struct hardware_scb, cdb32));
+ }
+ q_hscb->tag = saved_tag;
+ q_hscb->next = scb->hscb->tag;
+
+ /* Now swap HSCB pointers. */
+ ahc->next_queued_scb->hscb = scb->hscb;
+ scb->hscb = q_hscb;
+
+ /* Now define the mapping from tag to SCB in the scbindex */
+ ahc->scb_data->scbindex[scb->hscb->tag] = scb;
+}
+
+/*
+ * Tell the sequencer about a new transaction to execute.
+ */
+void
+ahc_queue_scb(struct ahc_softc *ahc, struct scb *scb)
+{
+ ahc_swap_with_next_hscb(ahc, scb);
+
+ if (scb->hscb->tag == SCB_LIST_NULL
+ || scb->hscb->next == SCB_LIST_NULL)
+ panic("Attempt to queue invalid SCB tag %x:%x\n",
+ scb->hscb->tag, scb->hscb->next);
+
+ /*
+ * Setup data "oddness".
+ */
+ scb->hscb->lun &= LID;
+ if (ahc_get_transfer_length(scb) & 0x1)
+ scb->hscb->lun |= SCB_XFERLEN_ODD;
+
+ /*
+ * Keep a history of SCBs we've downloaded in the qinfifo.
+ */
+ ahc->qinfifo[ahc->qinfifonext++] = scb->hscb->tag;
+
+ /*
+ * Make sure our data is consistent from the
+ * perspective of the adapter.
+ */
+ ahc_sync_scb(ahc, scb, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
+
+ /* Tell the adapter about the newly queued SCB */
+ if ((ahc->features & AHC_QUEUE_REGS) != 0) {
+ ahc_outb(ahc, HNSCB_QOFF, ahc->qinfifonext);
+ } else {
+ if ((ahc->features & AHC_AUTOPAUSE) == 0)
+ ahc_pause(ahc);
+ ahc_outb(ahc, KERNEL_QINPOS, ahc->qinfifonext);
+ if ((ahc->features & AHC_AUTOPAUSE) == 0)
+ ahc_unpause(ahc);
+ }
+}
+
+struct scsi_sense_data *
+ahc_get_sense_buf(struct ahc_softc *ahc, struct scb *scb)
+{
+ int offset;
+
+ offset = scb - ahc->scb_data->scbarray;
+ return (&ahc->scb_data->sense[offset]);
+}
+
+uint32_t
+ahc_get_sense_bufaddr(struct ahc_softc *ahc, struct scb *scb)
+{
+ int offset;
+
+ offset = scb - ahc->scb_data->scbarray;
+ return (ahc->scb_data->sense_busaddr
+ + (offset * sizeof(struct scsi_sense_data)));
+}
+
+/************************** Interrupt Processing ******************************/
+void
+ahc_sync_qoutfifo(struct ahc_softc *ahc, int op)
+{
+ ahc_dmamap_sync(ahc, ahc->shared_data_dmat, ahc->shared_data_dmamap,
+ /*offset*/0, /*len*/256, op);
+}
+
+void
+ahc_sync_tqinfifo(struct ahc_softc *ahc, int op)
+{
+#ifdef AHC_TARGET_MODE
+ if ((ahc->flags & AHC_TARGETROLE) != 0) {
+ ahc_dmamap_sync(ahc, ahc->shared_data_dmat,
+ ahc->shared_data_dmamap,
+ ahc_targetcmd_offset(ahc, 0),
+ sizeof(struct target_cmd) * AHC_TMODE_CMDS,
+ op);
+ }
+#endif
+}
+
+/*
+ * See if the firmware has posted any completed commands
+ * into our in-core command complete fifos.
+ */
+#define AHC_RUN_QOUTFIFO 0x1
+#define AHC_RUN_TQINFIFO 0x2
+u_int
+ahc_check_cmdcmpltqueues(struct ahc_softc *ahc)
+{
+ u_int retval;
+
+ retval = 0;
+ ahc_dmamap_sync(ahc, ahc->shared_data_dmat, ahc->shared_data_dmamap,
+ /*offset*/ahc->qoutfifonext, /*len*/1,
+ BUS_DMASYNC_POSTREAD);
+ if (ahc->qoutfifo[ahc->qoutfifonext] != SCB_LIST_NULL)
+ retval |= AHC_RUN_QOUTFIFO;
+#ifdef AHC_TARGET_MODE
+ if ((ahc->flags & AHC_TARGETROLE) != 0
+ && (ahc->flags & AHC_TQINFIFO_BLOCKED) == 0) {
+ ahc_dmamap_sync(ahc, ahc->shared_data_dmat,
+ ahc->shared_data_dmamap,
+ ahc_targetcmd_offset(ahc, ahc->tqinfifofnext),
+ /*len*/sizeof(struct target_cmd),
+ BUS_DMASYNC_POSTREAD);
+ if (ahc->targetcmds[ahc->tqinfifonext].cmd_valid != 0)
+ retval |= AHC_RUN_TQINFIFO;
+ }
+#endif
+ return (retval);
+}
+
+/*
+ * Catch an interrupt from the adapter
+ */
+int
+ahc_intr(struct ahc_softc *ahc)
+{
+ u_int intstat;
+
+ if ((ahc->pause & INTEN) == 0) {
+ /*
+ * Our interrupt is not enabled on the chip
+ * and may be disabled for re-entrancy reasons,
+ * so just return. This is likely just a shared
+ * interrupt.
+ */
+ return (0);
+ }
+ /*
+ * Instead of directly reading the interrupt status register,
+ * infer the cause of the interrupt by checking our in-core
+ * completion queues. This avoids a costly PCI bus read in
+ * most cases.
+ */
+ if ((ahc->flags & (AHC_ALL_INTERRUPTS|AHC_EDGE_INTERRUPT)) == 0
+ && (ahc_check_cmdcmpltqueues(ahc) != 0))
+ intstat = CMDCMPLT;
+ else {
+ intstat = ahc_inb(ahc, INTSTAT);
+ }
+
+ if ((intstat & INT_PEND) == 0) {
+#if AHC_PCI_CONFIG > 0
+ if (ahc->unsolicited_ints > 500) {
+ ahc->unsolicited_ints = 0;
+ if ((ahc->chip & AHC_PCI) != 0
+ && (ahc_inb(ahc, ERROR) & PCIERRSTAT) != 0)
+ ahc->bus_intr(ahc);
+ }
+#endif
+ ahc->unsolicited_ints++;
+ return (0);
+ }
+ ahc->unsolicited_ints = 0;
+
+ if (intstat & CMDCMPLT) {
+ ahc_outb(ahc, CLRINT, CLRCMDINT);
+
+ /*
+ * Ensure that the chip sees that we've cleared
+ * this interrupt before we walk the output fifo.
+ * Otherwise, we may, due to posted bus writes,
+ * clear the interrupt after we finish the scan,
+ * and after the sequencer has added new entries
+ * and asserted the interrupt again.
+ */
+ ahc_flush_device_writes(ahc);
+ ahc_run_qoutfifo(ahc);
+#ifdef AHC_TARGET_MODE
+ if ((ahc->flags & AHC_TARGETROLE) != 0)
+ ahc_run_tqinfifo(ahc, /*paused*/FALSE);
+#endif
+ }
+
+ /*
+ * Handle statuses that may invalidate our cached
+ * copy of INTSTAT separately.
+ */
+ if (intstat == 0xFF && (ahc->features & AHC_REMOVABLE) != 0) {
+ /* Hot eject. Do nothing */
+ } else if (intstat & BRKADRINT) {
+ ahc_handle_brkadrint(ahc);
+ } else if ((intstat & (SEQINT|SCSIINT)) != 0) {
+
+ ahc_pause_bug_fix(ahc);
+
+ if ((intstat & SEQINT) != 0)
+ ahc_handle_seqint(ahc, intstat);
+
+ if ((intstat & SCSIINT) != 0)
+ ahc_handle_scsiint(ahc, intstat);
+ }
+ return (1);
+}
+
/************************* Sequencer Execution Control ************************/
/*
* Restart the sequencer program from address zero
diff -urpN linux-2.6.23/drivers/scsi/aic7xxx/aic7xxx_inline.h linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic7xxx_inline.h
--- linux-2.6.23/drivers/scsi/aic7xxx/aic7xxx_inline.h 2007-10-09 21:31:38.000000000 +0100
+++ linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic7xxx_inline.h 2007-10-14 15:02:44.000000000 +0100
@@ -46,74 +46,10 @@
#define _AIC7XXX_INLINE_H_
/************************* Sequencer Execution Control ************************/
-static __inline void ahc_pause_bug_fix(struct ahc_softc *ahc);
-static __inline int ahc_is_paused(struct ahc_softc *ahc);
-static __inline void ahc_pause(struct ahc_softc *ahc);
-static __inline void ahc_unpause(struct ahc_softc *ahc);
-
-/*
- * Work around any chip bugs related to halting sequencer execution.
- * On Ultra2 controllers, we must clear the CIOBUS stretch signal by
- * reading a register that will set this signal and deassert it.
- * Without this workaround, if the chip is paused, by an interrupt or
- * manual pause while accessing scb ram, accesses to certain registers
- * will hang the system (infinite pci retries).
- */
-static __inline void
-ahc_pause_bug_fix(struct ahc_softc *ahc)
-{
- if ((ahc->features & AHC_ULTRA2) != 0)
- (void)ahc_inb(ahc, CCSCBCTL);
-}
-
-/*
- * Determine whether the sequencer has halted code execution.
- * Returns non-zero status if the sequencer is stopped.
- */
-static __inline int
-ahc_is_paused(struct ahc_softc *ahc)
-{
- return ((ahc_inb(ahc, HCNTRL) & PAUSE) != 0);
-}
-
-/*
- * Request that the sequencer stop and wait, indefinitely, for it
- * to stop. The sequencer will only acknowledge that it is paused
- * once it has reached an instruction boundary and PAUSEDIS is
- * cleared in the SEQCTL register. The sequencer may use PAUSEDIS
- * for critical sections.
- */
-static __inline void
-ahc_pause(struct ahc_softc *ahc)
-{
- ahc_outb(ahc, HCNTRL, ahc->pause);
-
- /*
- * Since the sequencer can disable pausing in a critical section, we
- * must loop until it actually stops.
- */
- while (ahc_is_paused(ahc) == 0)
- ;
-
- ahc_pause_bug_fix(ahc);
-}
-
-/*
- * Allow the sequencer to continue program execution.
- * We check here to ensure that no additional interrupt
- * sources that would cause the sequencer to halt have been
- * asserted. If, for example, a SCSI bus reset is detected
- * while we are fielding a different, pausing, interrupt type,
- * we don't want to release the sequencer before going back
- * into our interrupt handler and dealing with this new
- * condition.
- */
-static __inline void
-ahc_unpause(struct ahc_softc *ahc)
-{
- if ((ahc_inb(ahc, INTSTAT) & (SCSIINT | SEQINT | BRKADRINT)) == 0)
- ahc_outb(ahc, HCNTRL, ahc->unpause);
-}
+void ahc_pause_bug_fix(struct ahc_softc *ahc);
+int ahc_is_paused(struct ahc_softc *ahc);
+void ahc_pause(struct ahc_softc *ahc);
+void ahc_unpause(struct ahc_softc *ahc);
/*********************** Untagged Transaction Routines ************************/
static __inline void ahc_freeze_untagged_queues(struct ahc_softc *ahc);
@@ -147,78 +83,21 @@ ahc_release_untagged_queues(struct ahc_s
}
/************************** Memory mapping routines ***************************/
-static __inline struct ahc_dma_seg *
- ahc_sg_bus_to_virt(struct scb *scb,
- uint32_t sg_busaddr);
-static __inline uint32_t
- ahc_sg_virt_to_bus(struct scb *scb,
- struct ahc_dma_seg *sg);
-static __inline uint32_t
- ahc_hscb_busaddr(struct ahc_softc *ahc, u_int index);
-static __inline void ahc_sync_scb(struct ahc_softc *ahc,
- struct scb *scb, int op);
-static __inline void ahc_sync_sglist(struct ahc_softc *ahc,
- struct scb *scb, int op);
-static __inline uint32_t
- ahc_targetcmd_offset(struct ahc_softc *ahc,
- u_int index);
-
-static __inline struct ahc_dma_seg *
-ahc_sg_bus_to_virt(struct scb *scb, uint32_t sg_busaddr)
-{
- int sg_index;
-
- sg_index = (sg_busaddr - scb->sg_list_phys)/sizeof(struct ahc_dma_seg);
- /* sg_list_phys points to entry 1, not 0 */
- sg_index++;
-
- return (&scb->sg_list[sg_index]);
-}
-
-static __inline uint32_t
-ahc_sg_virt_to_bus(struct scb *scb, struct ahc_dma_seg *sg)
-{
- int sg_index;
-
- /* sg_list_phys points to entry 1, not 0 */
- sg_index = sg - &scb->sg_list[1];
-
- return (scb->sg_list_phys + (sg_index * sizeof(*scb->sg_list)));
-}
-
-static __inline uint32_t
-ahc_hscb_busaddr(struct ahc_softc *ahc, u_int index)
-{
- return (ahc->scb_data->hscb_busaddr
- + (sizeof(struct hardware_scb) * index));
-}
-
-static __inline void
-ahc_sync_scb(struct ahc_softc *ahc, struct scb *scb, int op)
-{
- ahc_dmamap_sync(ahc, ahc->scb_data->hscb_dmat,
- ahc->scb_data->hscb_dmamap,
- /*offset*/(scb->hscb - ahc->hscbs) * sizeof(*scb->hscb),
- /*len*/sizeof(*scb->hscb), op);
-}
-
-static __inline void
-ahc_sync_sglist(struct ahc_softc *ahc, struct scb *scb, int op)
-{
- if (scb->sg_count == 0)
- return;
-
- ahc_dmamap_sync(ahc, ahc->scb_data->sg_dmat, scb->sg_map->sg_dmamap,
- /*offset*/(scb->sg_list - scb->sg_map->sg_vaddr)
- * sizeof(struct ahc_dma_seg),
- /*len*/sizeof(struct ahc_dma_seg) * scb->sg_count, op);
-}
-
-static __inline uint32_t
-ahc_targetcmd_offset(struct ahc_softc *ahc, u_int index)
-{
- return (((uint8_t *)&ahc->targetcmds[index]) - ahc->qoutfifo);
-}
+struct ahc_dma_seg *
+ ahc_sg_bus_to_virt(struct scb *scb,
+ uint32_t sg_busaddr);
+uint32_t
+ ahc_sg_virt_to_bus(struct scb *scb,
+ struct ahc_dma_seg *sg);
+uint32_t
+ ahc_hscb_busaddr(struct ahc_softc *ahc, u_int index);
+void ahc_sync_scb(struct ahc_softc *ahc,
+ struct scb *scb, int op);
+void ahc_sync_sglist(struct ahc_softc *ahc,
+ struct scb *scb, int op);
+uint32_t
+ ahc_targetcmd_offset(struct ahc_softc *ahc,
+ u_int index);
/******************************** Debugging ***********************************/
static __inline char *ahc_name(struct ahc_softc *ahc);
@@ -230,421 +109,44 @@ ahc_name(struct ahc_softc *ahc)
}
/*********************** Miscelaneous Support Functions ***********************/
-
-static __inline void ahc_update_residual(struct ahc_softc *ahc,
- struct scb *scb);
-static __inline struct ahc_initiator_tinfo *
- ahc_fetch_transinfo(struct ahc_softc *ahc,
- char channel, u_int our_id,
- u_int remote_id,
- struct ahc_tmode_tstate **tstate);
-static __inline uint16_t
- ahc_inw(struct ahc_softc *ahc, u_int port);
-static __inline void ahc_outw(struct ahc_softc *ahc, u_int port,
- u_int value);
-static __inline uint32_t
- ahc_inl(struct ahc_softc *ahc, u_int port);
-static __inline void ahc_outl(struct ahc_softc *ahc, u_int port,
- uint32_t value);
-static __inline uint64_t
- ahc_inq(struct ahc_softc *ahc, u_int port);
-static __inline void ahc_outq(struct ahc_softc *ahc, u_int port,
- uint64_t value);
-static __inline struct scb*
- ahc_get_scb(struct ahc_softc *ahc);
-static __inline void ahc_free_scb(struct ahc_softc *ahc, struct scb *scb);
-static __inline void ahc_swap_with_next_hscb(struct ahc_softc *ahc,
- struct scb *scb);
-static __inline void ahc_queue_scb(struct ahc_softc *ahc, struct scb *scb);
-static __inline struct scsi_sense_data *
- ahc_get_sense_buf(struct ahc_softc *ahc,
- struct scb *scb);
-static __inline uint32_t
- ahc_get_sense_bufaddr(struct ahc_softc *ahc,
- struct scb *scb);
-
-/*
- * Determine whether the sequencer reported a residual
- * for this SCB/transaction.
- */
-static __inline void
-ahc_update_residual(struct ahc_softc *ahc, struct scb *scb)
-{
- uint32_t sgptr;
-
- sgptr = ahc_le32toh(scb->hscb->sgptr);
- if ((sgptr & SG_RESID_VALID) != 0)
- ahc_calc_residual(ahc, scb);
-}
-
-/*
- * Return pointers to the transfer negotiation information
- * for the specified our_id/remote_id pair.
- */
-static __inline struct ahc_initiator_tinfo *
-ahc_fetch_transinfo(struct ahc_softc *ahc, char channel, u_int our_id,
- u_int remote_id, struct ahc_tmode_tstate **tstate)
-{
- /*
- * Transfer data structures are stored from the perspective
- * of the target role. Since the parameters for a connection
- * in the initiator role to a given target are the same as
- * when the roles are reversed, we pretend we are the target.
- */
- if (channel == 'B')
- our_id += 8;
- *tstate = ahc->enabled_targets[our_id];
- return (&(*tstate)->transinfo[remote_id]);
-}
-
-static __inline uint16_t
-ahc_inw(struct ahc_softc *ahc, u_int port)
-{
- uint16_t r = ahc_inb(ahc, port+1) << 8;
- return r | ahc_inb(ahc, port);
-}
-
-static __inline void
-ahc_outw(struct ahc_softc *ahc, u_int port, u_int value)
-{
- ahc_outb(ahc, port, value & 0xFF);
- ahc_outb(ahc, port+1, (value >> 8) & 0xFF);
-}
-
-static __inline uint32_t
-ahc_inl(struct ahc_softc *ahc, u_int port)
-{
- return ((ahc_inb(ahc, port))
- | (ahc_inb(ahc, port+1) << 8)
- | (ahc_inb(ahc, port+2) << 16)
- | (ahc_inb(ahc, port+3) << 24));
-}
-
-static __inline void
-ahc_outl(struct ahc_softc *ahc, u_int port, uint32_t value)
-{
- ahc_outb(ahc, port, (value) & 0xFF);
- ahc_outb(ahc, port+1, ((value) >> 8) & 0xFF);
- ahc_outb(ahc, port+2, ((value) >> 16) & 0xFF);
- ahc_outb(ahc, port+3, ((value) >> 24) & 0xFF);
-}
-
-static __inline uint64_t
-ahc_inq(struct ahc_softc *ahc, u_int port)
-{
- return ((ahc_inb(ahc, port))
- | (ahc_inb(ahc, port+1) << 8)
- | (ahc_inb(ahc, port+2) << 16)
- | (ahc_inb(ahc, port+3) << 24)
- | (((uint64_t)ahc_inb(ahc, port+4)) << 32)
- | (((uint64_t)ahc_inb(ahc, port+5)) << 40)
- | (((uint64_t)ahc_inb(ahc, port+6)) << 48)
- | (((uint64_t)ahc_inb(ahc, port+7)) << 56));
-}
-
-static __inline void
-ahc_outq(struct ahc_softc *ahc, u_int port, uint64_t value)
-{
- ahc_outb(ahc, port, value & 0xFF);
- ahc_outb(ahc, port+1, (value >> 8) & 0xFF);
- ahc_outb(ahc, port+2, (value >> 16) & 0xFF);
- ahc_outb(ahc, port+3, (value >> 24) & 0xFF);
- ahc_outb(ahc, port+4, (value >> 32) & 0xFF);
- ahc_outb(ahc, port+5, (value >> 40) & 0xFF);
- ahc_outb(ahc, port+6, (value >> 48) & 0xFF);
- ahc_outb(ahc, port+7, (value >> 56) & 0xFF);
-}
-
-/*
- * Get a free scb. If there are none, see if we can allocate a new SCB.
- */
-static __inline struct scb *
-ahc_get_scb(struct ahc_softc *ahc)
-{
- struct scb *scb;
-
- if ((scb = SLIST_FIRST(&ahc->scb_data->free_scbs)) == NULL) {
- ahc_alloc_scbs(ahc);
- scb = SLIST_FIRST(&ahc->scb_data->free_scbs);
- if (scb == NULL)
- return (NULL);
- }
- SLIST_REMOVE_HEAD(&ahc->scb_data->free_scbs, links.sle);
- return (scb);
-}
-
-/*
- * Return an SCB resource to the free list.
- */
-static __inline void
-ahc_free_scb(struct ahc_softc *ahc, struct scb *scb)
-{
- struct hardware_scb *hscb;
-
- hscb = scb->hscb;
- /* Clean up for the next user */
- ahc->scb_data->scbindex[hscb->tag] = NULL;
- scb->flags = SCB_FREE;
- hscb->control = 0;
-
- SLIST_INSERT_HEAD(&ahc->scb_data->free_scbs, scb, links.sle);
-
- /* Notify the OSM that a resource is now available. */
- ahc_platform_scb_free(ahc, scb);
-}
-
-static __inline struct scb *
-ahc_lookup_scb(struct ahc_softc *ahc, u_int tag)
-{
- struct scb* scb;
-
- scb = ahc->scb_data->scbindex[tag];
- if (scb != NULL)
- ahc_sync_scb(ahc, scb,
- BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
- return (scb);
-}
-
-static __inline void
-ahc_swap_with_next_hscb(struct ahc_softc *ahc, struct scb *scb)
-{
- struct hardware_scb *q_hscb;
- u_int saved_tag;
-
- /*
- * Our queuing method is a bit tricky. The card
- * knows in advance which HSCB to download, and we
- * can't disappoint it. To achieve this, the next
- * SCB to download is saved off in ahc->next_queued_scb.
- * When we are called to queue "an arbitrary scb",
- * we copy the contents of the incoming HSCB to the one
- * the sequencer knows about, swap HSCB pointers and
- * finally assign the SCB to the tag indexed location
- * in the scb_array. This makes sure that we can still
- * locate the correct SCB by SCB_TAG.
- */
- q_hscb = ahc->next_queued_scb->hscb;
- saved_tag = q_hscb->tag;
- memcpy(q_hscb, scb->hscb, sizeof(*scb->hscb));
- if ((scb->flags & SCB_CDB32_PTR) != 0) {
- q_hscb->shared_data.cdb_ptr =
- ahc_htole32(ahc_hscb_busaddr(ahc, q_hscb->tag)
- + offsetof(struct hardware_scb, cdb32));
- }
- q_hscb->tag = saved_tag;
- q_hscb->next = scb->hscb->tag;
-
- /* Now swap HSCB pointers. */
- ahc->next_queued_scb->hscb = scb->hscb;
- scb->hscb = q_hscb;
-
- /* Now define the mapping from tag to SCB in the scbindex */
- ahc->scb_data->scbindex[scb->hscb->tag] = scb;
-}
-
-/*
- * Tell the sequencer about a new transaction to execute.
- */
-static __inline void
-ahc_queue_scb(struct ahc_softc *ahc, struct scb *scb)
-{
- ahc_swap_with_next_hscb(ahc, scb);
-
- if (scb->hscb->tag == SCB_LIST_NULL
- || scb->hscb->next == SCB_LIST_NULL)
- panic("Attempt to queue invalid SCB tag %x:%x\n",
- scb->hscb->tag, scb->hscb->next);
-
- /*
- * Setup data "oddness".
- */
- scb->hscb->lun &= LID;
- if (ahc_get_transfer_length(scb) & 0x1)
- scb->hscb->lun |= SCB_XFERLEN_ODD;
-
- /*
- * Keep a history of SCBs we've downloaded in the qinfifo.
- */
- ahc->qinfifo[ahc->qinfifonext++] = scb->hscb->tag;
-
- /*
- * Make sure our data is consistent from the
- * perspective of the adapter.
- */
- ahc_sync_scb(ahc, scb, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
-
- /* Tell the adapter about the newly queued SCB */
- if ((ahc->features & AHC_QUEUE_REGS) != 0) {
- ahc_outb(ahc, HNSCB_QOFF, ahc->qinfifonext);
- } else {
- if ((ahc->features & AHC_AUTOPAUSE) == 0)
- ahc_pause(ahc);
- ahc_outb(ahc, KERNEL_QINPOS, ahc->qinfifonext);
- if ((ahc->features & AHC_AUTOPAUSE) == 0)
- ahc_unpause(ahc);
- }
-}
-
-static __inline struct scsi_sense_data *
-ahc_get_sense_buf(struct ahc_softc *ahc, struct scb *scb)
-{
- int offset;
-
- offset = scb - ahc->scb_data->scbarray;
- return (&ahc->scb_data->sense[offset]);
-}
-
-static __inline uint32_t
-ahc_get_sense_bufaddr(struct ahc_softc *ahc, struct scb *scb)
-{
- int offset;
-
- offset = scb - ahc->scb_data->scbarray;
- return (ahc->scb_data->sense_busaddr
- + (offset * sizeof(struct scsi_sense_data)));
-}
+void ahc_update_residual(struct ahc_softc *ahc,
+ struct scb *scb);
+struct ahc_initiator_tinfo *
+ ahc_fetch_transinfo(struct ahc_softc *ahc,
+ char channel, u_int our_id,
+ u_int remote_id,
+ struct ahc_tmode_tstate **tstate);
+uint16_t
+ ahc_inw(struct ahc_softc *ahc, u_int port);
+void ahc_outw(struct ahc_softc *ahc, u_int port,
+ u_int value);
+uint32_t
+ ahc_inl(struct ahc_softc *ahc, u_int port);
+void ahc_outl(struct ahc_softc *ahc, u_int port,
+ uint32_t value);
+uint64_t
+ ahc_inq(struct ahc_softc *ahc, u_int port);
+void ahc_outq(struct ahc_softc *ahc, u_int port,
+ uint64_t value);
+struct scb*
+ ahc_get_scb(struct ahc_softc *ahc);
+void ahc_free_scb(struct ahc_softc *ahc, struct scb *scb);
+struct scb *
+ ahc_lookup_scb(struct ahc_softc *ahc, u_int tag);
+void ahc_swap_with_next_hscb(struct ahc_softc *ahc,
+ struct scb *scb);
+void ahc_queue_scb(struct ahc_softc *ahc, struct scb *scb);
+struct scsi_sense_data *
+ ahc_get_sense_buf(struct ahc_softc *ahc,
+ struct scb *scb);
+uint32_t
+ ahc_get_sense_bufaddr(struct ahc_softc *ahc,
+ struct scb *scb);
/************************** Interrupt Processing ******************************/
-static __inline void ahc_sync_qoutfifo(struct ahc_softc *ahc, int op);
-static __inline void ahc_sync_tqinfifo(struct ahc_softc *ahc, int op);
-static __inline u_int ahc_check_cmdcmpltqueues(struct ahc_softc *ahc);
-static __inline int ahc_intr(struct ahc_softc *ahc);
-
-static __inline void
-ahc_sync_qoutfifo(struct ahc_softc *ahc, int op)
-{
- ahc_dmamap_sync(ahc, ahc->shared_data_dmat, ahc->shared_data_dmamap,
- /*offset*/0, /*len*/256, op);
-}
-
-static __inline void
-ahc_sync_tqinfifo(struct ahc_softc *ahc, int op)
-{
-#ifdef AHC_TARGET_MODE
- if ((ahc->flags & AHC_TARGETROLE) != 0) {
- ahc_dmamap_sync(ahc, ahc->shared_data_dmat,
- ahc->shared_data_dmamap,
- ahc_targetcmd_offset(ahc, 0),
- sizeof(struct target_cmd) * AHC_TMODE_CMDS,
- op);
- }
-#endif
-}
-
-/*
- * See if the firmware has posted any completed commands
- * into our in-core command complete fifos.
- */
-#define AHC_RUN_QOUTFIFO 0x1
-#define AHC_RUN_TQINFIFO 0x2
-static __inline u_int
-ahc_check_cmdcmpltqueues(struct ahc_softc *ahc)
-{
- u_int retval;
-
- retval = 0;
- ahc_dmamap_sync(ahc, ahc->shared_data_dmat, ahc->shared_data_dmamap,
- /*offset*/ahc->qoutfifonext, /*len*/1,
- BUS_DMASYNC_POSTREAD);
- if (ahc->qoutfifo[ahc->qoutfifonext] != SCB_LIST_NULL)
- retval |= AHC_RUN_QOUTFIFO;
-#ifdef AHC_TARGET_MODE
- if ((ahc->flags & AHC_TARGETROLE) != 0
- && (ahc->flags & AHC_TQINFIFO_BLOCKED) == 0) {
- ahc_dmamap_sync(ahc, ahc->shared_data_dmat,
- ahc->shared_data_dmamap,
- ahc_targetcmd_offset(ahc, ahc->tqinfifofnext),
- /*len*/sizeof(struct target_cmd),
- BUS_DMASYNC_POSTREAD);
- if (ahc->targetcmds[ahc->tqinfifonext].cmd_valid != 0)
- retval |= AHC_RUN_TQINFIFO;
- }
-#endif
- return (retval);
-}
-
-/*
- * Catch an interrupt from the adapter
- */
-static __inline int
-ahc_intr(struct ahc_softc *ahc)
-{
- u_int intstat;
-
- if ((ahc->pause & INTEN) == 0) {
- /*
- * Our interrupt is not enabled on the chip
- * and may be disabled for re-entrancy reasons,
- * so just return. This is likely just a shared
- * interrupt.
- */
- return (0);
- }
- /*
- * Instead of directly reading the interrupt status register,
- * infer the cause of the interrupt by checking our in-core
- * completion queues. This avoids a costly PCI bus read in
- * most cases.
- */
- if ((ahc->flags & (AHC_ALL_INTERRUPTS|AHC_EDGE_INTERRUPT)) == 0
- && (ahc_check_cmdcmpltqueues(ahc) != 0))
- intstat = CMDCMPLT;
- else {
- intstat = ahc_inb(ahc, INTSTAT);
- }
-
- if ((intstat & INT_PEND) == 0) {
-#if AHC_PCI_CONFIG > 0
- if (ahc->unsolicited_ints > 500) {
- ahc->unsolicited_ints = 0;
- if ((ahc->chip & AHC_PCI) != 0
- && (ahc_inb(ahc, ERROR) & PCIERRSTAT) != 0)
- ahc->bus_intr(ahc);
- }
-#endif
- ahc->unsolicited_ints++;
- return (0);
- }
- ahc->unsolicited_ints = 0;
-
- if (intstat & CMDCMPLT) {
- ahc_outb(ahc, CLRINT, CLRCMDINT);
-
- /*
- * Ensure that the chip sees that we've cleared
- * this interrupt before we walk the output fifo.
- * Otherwise, we may, due to posted bus writes,
- * clear the interrupt after we finish the scan,
- * and after the sequencer has added new entries
- * and asserted the interrupt again.
- */
- ahc_flush_device_writes(ahc);
- ahc_run_qoutfifo(ahc);
-#ifdef AHC_TARGET_MODE
- if ((ahc->flags & AHC_TARGETROLE) != 0)
- ahc_run_tqinfifo(ahc, /*paused*/FALSE);
-#endif
- }
-
- /*
- * Handle statuses that may invalidate our cached
- * copy of INTSTAT separately.
- */
- if (intstat == 0xFF && (ahc->features & AHC_REMOVABLE) != 0) {
- /* Hot eject. Do nothing */
- } else if (intstat & BRKADRINT) {
- ahc_handle_brkadrint(ahc);
- } else if ((intstat & (SEQINT|SCSIINT)) != 0) {
-
- ahc_pause_bug_fix(ahc);
-
- if ((intstat & SEQINT) != 0)
- ahc_handle_seqint(ahc, intstat);
-
- if ((intstat & SCSIINT) != 0)
- ahc_handle_scsiint(ahc, intstat);
- }
- return (1);
-}
+void ahc_sync_qoutfifo(struct ahc_softc *ahc, int op);
+void ahc_sync_tqinfifo(struct ahc_softc *ahc, int op);
+u_int ahc_check_cmdcmpltqueues(struct ahc_softc *ahc);
+int ahc_intr(struct ahc_softc *ahc);
#endif /* _AIC7XXX_INLINE_H_ */
diff -urpN linux-2.6.23/drivers/scsi/aic7xxx/aic7xxx_osm.c linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic7xxx_osm.c
--- linux-2.6.23/drivers/scsi/aic7xxx/aic7xxx_osm.c 2007-10-09 21:31:38.000000000 +0100
+++ linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic7xxx_osm.c 2007-10-14 15:02:44.000000000 +0100
@@ -388,14 +388,83 @@ static int aic7xxx_setup(char *s);
static int ahc_linux_unit;
+/************************** OS Utility Wrappers *******************************/
+void
+ahc_delay(long usec)
+{
+ /*
+ * udelay on Linux can have problems for
+ * multi-millisecond waits. Wait at most
+ * 1024us per call.
+ */
+ while (usec > 0) {
+ udelay(usec % 1024);
+ usec -= 1024;
+ }
+}
+
+/***************************** Low Level I/O **********************************/
+uint8_t
+ahc_inb(struct ahc_softc * ahc, long port)
+{
+ uint8_t x;
+
+ if (ahc->tag == BUS_SPACE_MEMIO) {
+ x = readb(ahc->bsh.maddr + port);
+ } else {
+ x = inb(ahc->bsh.ioport + port);
+ }
+ mb();
+ return (x);
+}
+
+void
+ahc_outb(struct ahc_softc * ahc, long port, uint8_t val)
+{
+ if (ahc->tag == BUS_SPACE_MEMIO) {
+ writeb(val, ahc->bsh.maddr + port);
+ } else {
+ outb(val, ahc->bsh.ioport + port);
+ }
+ mb();
+}
+
+void
+ahc_outsb(struct ahc_softc * ahc, long port, uint8_t *array, int count)
+{
+ int i;
+
+ /*
+ * There is probably a more efficient way to do this on Linux
+ * but we don't use this for anything speed critical and this
+ * should work.
+ */
+ for (i = 0; i < count; i++)
+ ahc_outb(ahc, port, *array++);
+}
+
+void
+ahc_insb(struct ahc_softc * ahc, long port, uint8_t *array, int count)
+{
+ int i;
+
+ /*
+ * There is probably a more efficient way to do this on Linux
+ * but we don't use this for anything speed critical and this
+ * should work.
+ */
+ for (i = 0; i < count; i++)
+ *array++ = ahc_inb(ahc, port);
+}
+
/********************************* Inlines ************************************/
-static __inline void ahc_linux_unmap_scb(struct ahc_softc*, struct scb*);
+static void ahc_linux_unmap_scb(struct ahc_softc*, struct scb*);
-static __inline int ahc_linux_map_seg(struct ahc_softc *ahc, struct scb *scb,
+static int ahc_linux_map_seg(struct ahc_softc *ahc, struct scb *scb,
struct ahc_dma_seg *sg,
dma_addr_t addr, bus_size_t len);
-static __inline void
+static void
ahc_linux_unmap_scb(struct ahc_softc *ahc, struct scb *scb)
{
struct scsi_cmnd *cmd;
@@ -406,7 +475,7 @@ ahc_linux_unmap_scb(struct ahc_softc *ah
scsi_dma_unmap(cmd);
}
-static __inline int
+static int
ahc_linux_map_seg(struct ahc_softc *ahc, struct scb *scb,
struct ahc_dma_seg *sg, dma_addr_t addr, bus_size_t len)
{
diff -urpN linux-2.6.23/drivers/scsi/aic7xxx/aic7xxx_osm.h linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic7xxx_osm.h
--- linux-2.6.23/drivers/scsi/aic7xxx/aic7xxx_osm.h 2007-10-09 21:31:38.000000000 +0100
+++ linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic7xxx_osm.h 2007-10-14 15:02:44.000000000 +0100
@@ -375,82 +375,16 @@ struct ahc_platform_data {
#define malloc(size, type, flags) kmalloc(size, flags)
#define free(ptr, type) kfree(ptr)
-static __inline void ahc_delay(long);
-static __inline void
-ahc_delay(long usec)
-{
- /*
- * udelay on Linux can have problems for
- * multi-millisecond waits. Wait at most
- * 1024us per call.
- */
- while (usec > 0) {
- udelay(usec % 1024);
- usec -= 1024;
- }
-}
+void ahc_delay(long);
/***************************** Low Level I/O **********************************/
-static __inline uint8_t ahc_inb(struct ahc_softc * ahc, long port);
-static __inline void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val);
-static __inline void ahc_outsb(struct ahc_softc * ahc, long port,
- uint8_t *, int count);
-static __inline void ahc_insb(struct ahc_softc * ahc, long port,
- uint8_t *, int count);
-
-static __inline uint8_t
-ahc_inb(struct ahc_softc * ahc, long port)
-{
- uint8_t x;
-
- if (ahc->tag == BUS_SPACE_MEMIO) {
- x = readb(ahc->bsh.maddr + port);
- } else {
- x = inb(ahc->bsh.ioport + port);
- }
- mb();
- return (x);
-}
-
-static __inline void
-ahc_outb(struct ahc_softc * ahc, long port, uint8_t val)
-{
- if (ahc->tag == BUS_SPACE_MEMIO) {
- writeb(val, ahc->bsh.maddr + port);
- } else {
- outb(val, ahc->bsh.ioport + port);
- }
- mb();
-}
-
-static __inline void
-ahc_outsb(struct ahc_softc * ahc, long port, uint8_t *array, int count)
-{
- int i;
-
- /*
- * There is probably a more efficient way to do this on Linux
- * but we don't use this for anything speed critical and this
- * should work.
- */
- for (i = 0; i < count; i++)
- ahc_outb(ahc, port, *array++);
-}
-
-static __inline void
-ahc_insb(struct ahc_softc * ahc, long port, uint8_t *array, int count)
-{
- int i;
-
- /*
- * There is probably a more efficient way to do this on Linux
- * but we don't use this for anything speed critical and this
- * should work.
- */
- for (i = 0; i < count; i++)
- *array++ = ahc_inb(ahc, port);
-}
+uint8_t ahc_inb(struct ahc_softc * ahc, long port);
+void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val);
+void ahc_outsb(struct ahc_softc * ahc, long port,
+ uint8_t *, int count);
+void ahc_insb(struct ahc_softc * ahc, long port,
+ uint8_t *, int count);
/**************************** Initialization **********************************/
int ahc_linux_register_host(struct ahc_softc *,
@@ -555,61 +489,12 @@ void ahc_linux_pci_exit(void);
int ahc_pci_map_registers(struct ahc_softc *ahc);
int ahc_pci_map_int(struct ahc_softc *ahc);
-static __inline uint32_t ahc_pci_read_config(ahc_dev_softc_t pci,
+uint32_t ahc_pci_read_config(ahc_dev_softc_t pci,
int reg, int width);
-static __inline uint32_t
-ahc_pci_read_config(ahc_dev_softc_t pci, int reg, int width)
-{
- switch (width) {
- case 1:
- {
- uint8_t retval;
-
- pci_read_config_byte(pci, reg, &retval);
- return (retval);
- }
- case 2:
- {
- uint16_t retval;
- pci_read_config_word(pci, reg, &retval);
- return (retval);
- }
- case 4:
- {
- uint32_t retval;
- pci_read_config_dword(pci, reg, &retval);
- return (retval);
- }
- default:
- panic("ahc_pci_read_config: Read size too big");
- /* NOTREACHED */
- return (0);
- }
-}
-
-static __inline void ahc_pci_write_config(ahc_dev_softc_t pci,
- int reg, uint32_t value,
- int width);
-
-static __inline void
-ahc_pci_write_config(ahc_dev_softc_t pci, int reg, uint32_t value, int width)
-{
- switch (width) {
- case 1:
- pci_write_config_byte(pci, reg, value);
- break;
- case 2:
- pci_write_config_word(pci, reg, value);
- break;
- case 4:
- pci_write_config_dword(pci, reg, value);
- break;
- default:
- panic("ahc_pci_write_config: Write size too big");
- /* NOTREACHED */
- }
-}
+void ahc_pci_write_config(ahc_dev_softc_t pci,
+ int reg, uint32_t value,
+ int width);
static __inline int ahc_get_pci_function(ahc_dev_softc_t);
static __inline int
diff -urpN linux-2.6.23/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
--- linux-2.6.23/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c 2007-10-09 21:31:38.000000000 +0100
+++ linux-2.6.23-aic-1-debloat/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c 2007-10-14 15:02:44.000000000 +0100
@@ -130,6 +130,57 @@ static struct pci_device_id ahc_linux_pc
MODULE_DEVICE_TABLE(pci, ahc_linux_pci_id_table);
+/******************************* PCI Routines *********************************/
+uint32_t
+ahc_pci_read_config(ahc_dev_softc_t pci, int reg, int width)
+{
+ switch (width) {
+ case 1:
+ {
+ uint8_t retval;
+
+ pci_read_config_byte(pci, reg, &retval);
+ return (retval);
+ }
+ case 2:
+ {
+ uint16_t retval;
+ pci_read_config_word(pci, reg, &retval);
+ return (retval);
+ }
+ case 4:
+ {
+ uint32_t retval;
+ pci_read_config_dword(pci, reg, &retval);
+ return (retval);
+ }
+ default:
+ panic("ahc_pci_read_config: Read size too big");
+ /* NOTREACHED */
+ return (0);
+ }
+}
+
+void
+ahc_pci_write_config(ahc_dev_softc_t pci, int reg, uint32_t value, int width)
+{
+ switch (width) {
+ case 1:
+ pci_write_config_byte(pci, reg, value);
+ break;
+ case 2:
+ pci_write_config_word(pci, reg, value);
+ break;
+ case 4:
+ pci_write_config_dword(pci, reg, value);
+ break;
+ default:
+ panic("ahc_pci_write_config: Write size too big");
+ /* NOTREACHED */
+ }
+}
+
+
static struct pci_driver aic7xxx_pci_driver = {
.name = "aic7xxx",
.probe = ahc_linux_pci_dev_probe,
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH 1/3] debloat aic7xxx and aic79xx drivers
2007-10-14 15:00 ` [PATCH 1/3] " Denys Vlasenko
@ 2007-11-01 22:15 ` Matthew Wilcox
2007-11-03 0:51 ` Denys Vlasenko
0 siblings, 1 reply; 15+ messages in thread
From: Matthew Wilcox @ 2007-11-01 22:15 UTC (permalink / raw)
To: Denys Vlasenko; +Cc: Andrew Morton, Hannes Reinecke, linux-scsi, linux-kernel
On Sun, Oct 14, 2007 at 04:00:10PM +0100, Denys Vlasenko wrote:
> Deinlines and moves big functions from .h to .c files.
> Adds prototypes for ahc_lookup_scb and ahd_lookup_scb to .h files.
Adds trailing whitespace.
.dotest/patch:216: * We also set the full residual flag which the
Adds trailing whitespace.
.dotest/patch:2383:{
warning: 2 lines add trailing whitespaces.
--
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours. We can't possibly take such
a retrograde step."
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH 1/3] debloat aic7xxx and aic79xx drivers
2007-11-01 22:15 ` Matthew Wilcox
@ 2007-11-03 0:51 ` Denys Vlasenko
0 siblings, 0 replies; 15+ messages in thread
From: Denys Vlasenko @ 2007-11-03 0:51 UTC (permalink / raw)
To: Matthew Wilcox; +Cc: Andrew Morton, Hannes Reinecke, linux-scsi
[-- Attachment #1: Type: text/plain, Size: 813 bytes --]
On Thursday 01 November 2007 22:15, Matthew Wilcox wrote:
> On Sun, Oct 14, 2007 at 04:00:10PM +0100, Denys Vlasenko wrote:
> > Deinlines and moves big functions from .h to .c files.
> > Adds prototypes for ahc_lookup_scb and ahd_lookup_scb to .h files.
>
> Adds trailing whitespace.
> .dotest/patch:216: * We also set the full residual flag which the
> Adds trailing whitespace.
> .dotest/patch:2383:{
> warning: 2 lines add trailing whitespaces.
This is caused by the fact that blocks of code which
I moved around verbatim already contained trailing whitespace.
Here are these three patched with these problems fixe,
and rediffed against current scsi-misc-2.6 git tree.
Compressing them in order to not spam linux-scsi with big mails.
Sorry. Do I need to send them separately instead?
--
vda
[-- Attachment #2: scsi-misc-2.6-aic7xxx-3-addconst.patch.gz --]
[-- Type: application/x-gzip, Size: 4281 bytes --]
[-- Attachment #3: scsi-misc-2.6-aic7xxx-1-debloat.patch.gz --]
[-- Type: application/x-gzip, Size: 18779 bytes --]
[-- Attachment #4: scsi-misc-2.6-aic7xxx-2-addstatic.patch.gz --]
[-- Type: application/x-gzip, Size: 31942 bytes --]
^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 1/3] debloat aic7xxx and aic79xx drivers
2008-03-23 3:40 [PATCH 0/3] " Denys Vlasenko
@ 2008-03-23 3:41 ` Denys Vlasenko
2008-04-07 10:31 ` Hannes Reinecke
0 siblings, 1 reply; 15+ messages in thread
From: Denys Vlasenko @ 2008-03-23 3:41 UTC (permalink / raw)
To: Andrew Morton; +Cc: Hannes Reinecke, linux-scsi, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 187 bytes --]
Deinlines and moves big functions from .h to .c files.
Adds prototypes for ahc_lookup_scb and ahd_lookup_scb to .h files.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
--
vda
[-- Attachment #2: linux-2.6.25-rc6-aic1-debloat.diff.bz2 --]
[-- Type: application/x-bzip2, Size: 15051 bytes --]
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH 1/3] debloat aic7xxx and aic79xx drivers
2008-03-23 3:41 ` [PATCH 1/3] " Denys Vlasenko
@ 2008-04-07 10:31 ` Hannes Reinecke
2008-04-07 18:01 ` Denys Vlasenko
0 siblings, 1 reply; 15+ messages in thread
From: Hannes Reinecke @ 2008-04-07 10:31 UTC (permalink / raw)
To: Denys Vlasenko; +Cc: Andrew Morton, linux-scsi, linux-kernel
Hi Denys,
Denys Vlasenko wrote:
> Deinlines and moves big functions from .h to .c files.
> Adds prototypes for ahc_lookup_scb and ahd_lookup_scb to .h files.
>
> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
> --
> vda
Patch looks good to me.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Markus Rex, HRB 16746 (AG Nürnberg)
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH 1/3] debloat aic7xxx and aic79xx drivers
2008-04-07 10:31 ` Hannes Reinecke
@ 2008-04-07 18:01 ` Denys Vlasenko
0 siblings, 0 replies; 15+ messages in thread
From: Denys Vlasenko @ 2008-04-07 18:01 UTC (permalink / raw)
To: Hannes Reinecke; +Cc: Andrew Morton, linux-scsi, linux-kernel
On Monday 07 April 2008 12:31, Hannes Reinecke wrote:
> Hi Denys,
>
> Denys Vlasenko wrote:
> > Deinlines and moves big functions from .h to .c files.
> > Adds prototypes for ahc_lookup_scb and ahd_lookup_scb to .h files.
> >
> > Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
> > --
> > vda
> Patch looks good to me.
>
> Signed-off-by: Hannes Reinecke <hare@suse.de>
Thanks! Please, queue it up in linux-scsi tree.
--
vda
^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2008-04-07 18:02 UTC | newest]
Thread overview: 15+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2007-08-31 15:13 [PATCH 0/3] debloat aic7xxx and aic79xx drivers Denys Vlasenko
2007-08-31 15:15 ` [PATCH 1/3] " Denys Vlasenko
2007-08-31 15:16 ` [PATCH 2/3] " Denys Vlasenko
2007-08-31 15:17 ` [PATCH 3/3] " Denys Vlasenko
2007-09-24 10:24 ` Hannes Reinecke
2007-09-24 10:23 ` [PATCH 2/3] " Hannes Reinecke
2007-09-24 10:16 ` [PATCH 1/3] " Hannes Reinecke
2007-08-31 16:27 ` [PATCH 0/3] " Valdis.Kletnieks
2007-08-31 21:20 ` Denys Vlasenko
-- strict thread matches above, loose matches on Subject: below --
2007-10-14 14:58 Denys Vlasenko
2007-10-14 15:00 ` [PATCH 1/3] " Denys Vlasenko
2007-11-01 22:15 ` Matthew Wilcox
2007-11-03 0:51 ` Denys Vlasenko
2008-03-23 3:40 [PATCH 0/3] " Denys Vlasenko
2008-03-23 3:41 ` [PATCH 1/3] " Denys Vlasenko
2008-04-07 10:31 ` Hannes Reinecke
2008-04-07 18:01 ` Denys Vlasenko
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