Add I/O register mapping for NCR53C400A and enable PDMA mode to
improve performance and fix non-working IRQ.
Tested with HP C2502 (and user-space enabler).
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c | 14 +++---
1 file changed, 11 inse
On Sunday 06 December 2015 04:40:56 Finn Thain wrote:
>
> On Fri, 4 Dec 2015, Ondrej Zary wrote:
>
> > Add I/O register mapping for DTC chips and enable PDMA mode.
> >
> > These chips have 16-bit wide HOST BUFFER register (counter register at
> > offset 0x0d in
.
The chip also crashes when we bang the C400 host status register too
heavily after PDMA write - a small udelay is needed.
Tested on DTCT-436P and verified that it does not break 53C400A.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c
Convert compile-time C400_ register mapping to runtime mapping.
This removes the weird negative register offsets and allows adding
additional mappings.
While at it, convert read/write loops into insb/outsb.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/NCR
On Monday 07 December 2015 04:16:14 Finn Thain wrote:
>
> On Mon, 7 Dec 2015, Ondrej Zary wrote:
>
> > The check for 53C80 registers accessibility was commented out because
> > it was broken (inverted). Fix and enable it.
> >
> > Signed-off-by: Ondrej
. Add new magic numbers for these
HP cards and hp_c2502 module parameter to use them, e.g.:
modprobe g_NCR5380 ncr_irq=7 ncr_addr=0x280 ncr_53c400a=1 hp_c2502=1
Tested with HP C2502 and DTCT-436P.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c
On Tuesday 08 December 2015 12:40:18 Finn Thain wrote:
>
> On Tue, 8 Dec 2015, Ondrej Zary wrote:
>
> > HP C2502 cards (based on 53C400A chips) use different magic numbers for
> > software-based I/O address configuration than other cards. The
> > configuration is als
hough the code was horrible. I've done some big
changes to this driver recently (tested, of course).
I can't test this patch as I don't have ATP885 card, only ATP870.
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On Tuesday 08 December 2015 03:05:11 Finn Thain wrote:
>
> On Sun, 6 Dec 2015, Ondrej Zary wrote:
>
> > Add I/O register mapping for NCR53C400A and enable PDMA mode to
> > improve performance and fix non-working IRQ.
> >
> > Tested with HP C2502 (and user-sp
Convert compile-time C400_ register mapping to runtime mapping.
This removes the weird negative register offsets and allows adding
additional mappings.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/NCR5380.h | 13 +-
drivers/scsi/g_NCR5380.c
this patch actually makes it work.
The chip also crashes when we bang the C400 host status register too
heavily after PDMA write - a small udelay is needed.
Tested on DTCT-436P and verified that it does not break 53C400A.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
driver
Add I/O register mapping for NCR53C400A and enable PDMA mode to
improve performance and fix non-working IRQ.
Tested with HP C2502 (and user-space enabler).
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c | 10 --
1 file changed, 8 insertions
. Add new magic numbers for these
HP cards and hp_53c400a module parameter to use them.
Tested with HP C2502 and DTCT-436P.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c | 69 +++---
drivers/scsi/g_NCR5380.h
it work.
The chip also crashes when we bang the C400 host status register too
heavily after PDMA write - a small udelay is needed.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
# hdparm -t --direct /dev/sdb
/dev/sdb:
Timing O_DIRECT disk reads: 4 MB in 3.78 seconds = 1
The check for 53C80 registers accessibility was commented out because
it was broken (inverted). Fix and enable it.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c | 35 +++
1 file changed, 7 insertions(+), 28 del
0A chip), Canon FG2-5202 (53C400 chip) and DTC-3181L
(DTCT-436P chip) ISA cards - everything works fine!
Thanks.
Tested-by: Ondrej Zary <li...@rainbow-software.org>
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On Tuesday 24 November 2015 10:13:17 Finn Thain wrote:
>
> On Tue, 24 Nov 2015, Ondrej Zary wrote:
>
> > On Tuesday 24 November 2015, Finn Thain wrote:
> > >
> > > On Mon, 23 Nov 2015, Ondrej Zary wrote:
> > >
> > > >
> > > &
On Wednesday 25 November 2015 10:04:10 Ondrej Zary wrote:
> I think that PDMA should work with 53C400A too but seems that the driver was
> never able to do it.
>
> Although there is code for port-mapped transfer in NCR5380_pread(),
> NCR53C400_register_offset is defined to 0 in
Pseudo-DMA (PDMA) has been broken for ages, resulting in hangs on
53C400-based cards.
According to 53C400 datasheet, PDMA transfer length must be a multiple
of 128. Check if that's true and use PIO if it's not.
This makes PDMA work on 53C400 (Canon FG2-5202).
Signed-off-by: Ondrej Zary <
On Wednesday 25 November 2015 04:17:09 Finn Thain wrote:
>
> On Tue, 24 Nov 2015, Ondrej Zary wrote:
>
> > On Wednesday 18 November 2015 09:35:17 Finn Thain wrote:
> > > Linux v2.1.105 changed the algorithm for polling for the BSY signal
> > > in
On Thursday 26 November 2015 23:32:46 Finn Thain wrote:
>
> On Thu, 26 Nov 2015, Ondrej Zary wrote:
>
> >
> > [ 156.014234] scsi host2: Generic NCR5380/NCR53C400 SCSI, io_port 0x0,
> > n_io_port 0, base 0xd8000, irq 0, can_queue 16, cmd_per_lun 2, sg_tablesize
The FLAG_DTC3181E is used to activate a work-around for arbitration lost
condition that these chips see when ICR is written during arbitration.
Move the ICR write (to set SEL and BSY) after the arbitration loss check
and remove FLAG_DTC3181E.
Signed-off-by: Ondrej Zary <li...@rain
On Sunday 29 November 2015 01:46:03 Finn Thain wrote:
>
> On Sun, 29 Nov 2015, Ondrej Zary wrote:
>
> > > [...] I think that this should solve the problem:
> >
> > Yes, it does!
> >
> > [ 48.119367] scsi host2: Generic NCR5380/NCR53C400 SCSI, io_por
Convert compile-time C400_ register mapping to runtime mapping.
This removes the weird negative register offsets and allows adding
additional mappings.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/NCR5380.h | 13 +-
drivers/scsi/g_NCR5380.c
Add I/O register mapping for NCR53C400A and enable PDMA mode to
improve performance and fix non-working IRQ.
Tested with HP C2502 (and user-space enabler).
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c | 11 ++-
1 file changed, 10 inse
On Wednesday 25 November 2015, Finn Thain wrote:
>
> On Tue, 24 Nov 2015, Ondrej Zary wrote:
>
> > On Tuesday 24 November 2015 10:13:17 Finn Thain wrote:
> > >
> > > On Tue, 24 Nov 2015, Ondrej Zary wrote:
> > >
> > > > On Tuesday 24 Novemb
On Tuesday 24 November 2015 13:03:17 Ondrej Zary wrote:
> On Tuesday 24 November 2015, Finn Thain wrote:
> >
> > On Tue, 24 Nov 2015, Ondrej Zary wrote:
> >
> > > On Tuesday 24 November 2015, Finn Thain wrote:
> > > >
>
4.6
PQ: 0 ANSI: 2 CCS
[ 159.959308] sd 2:0:1:0: Attached scsi generic sg1 type 0
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On Monday 30 November 2015, Finn Thain wrote:
>
> On Sun, 29 Nov 2015, Ondrej Zary wrote:
>
> > Add I/O register mapping for NCR53C400A and enable PDMA mode to
> > improve performance and fix non-working IRQ.
> >
>
> Is CONFIG_SCSI_GENERIC_NCR53C400 is stil
On Thursday 26 November 2015 11:23:01 Finn Thain wrote:
>
> On Wed, 25 Nov 2015, Ondrej Zary wrote:
>
> > On Wednesday 25 November 2015 04:17:09 Finn Thain wrote:
> > >
> > > On Tue, 24 Nov 2015, Ondrej Zary wrote:
> > >
> > > >
age.
> It would be good to see some testing of ISA cards and Sun 3 and Atari
> hardware too (I don't have any).
I have some NCR5380 ISA cards and can test them.
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On Thursday 19 November 2015, Finn Thain wrote:
> On Wed, 18 Nov 2015, Ondrej Zary wrote:
> > On Wednesday 18 November 2015, Finn Thain wrote:
> > > Like my previous work on the NCR5380 drivers, this patch series has
> > > bug fixes, code cleanup and modernization
On Friday 20 November 2015, Geert Uytterhoeven wrote:
> On Fri, Nov 20, 2015 at 12:40 PM, Ondrej Zary
> <li...@rainbow-software.org> wrote:
> > Working ISA means more testing possibilities. It's much easier to get an
> > ISA card than a Sun or Atari. Also faster CPU
ld be that g_NCR5380.c is not
> broken. It could be that the core driver can't handle certain targets. I
> think we need to do more testing.
Maybe I was just unlucky and tested a drive that never worked with this driver.
Working ISA means more testing possibilities. It's much easier to
On Friday 20 November 2015 02:41:19 Finn Thain wrote:
>
> On Thu, 19 Nov 2015, Ondrej Zary wrote:
>
> > On Thursday 19 November 2015 03:24:56 Finn Thain wrote:
> >
> > > On Wed, 18 Nov 2015, Ondrej Zary wrote:
> > >
> > > >
>
>
> I have mixed feelings about the ISA drivers. ISA DMA support complicates
> things (it was never completed) and DMA seems to be the main obstacle to
> merging the two core driver forks.
IIRC, my ISA cards can't do DMA either.
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On Thursday 19 November 2015 03:24:56 Finn Thain wrote:
> On Wed, 18 Nov 2015, Ondrej Zary wrote:
> > On Wednesday 18 November 2015, Finn Thain wrote:
> > > Like my previous work on the NCR5380 drivers, this patch series has
> > > bug fixes, code cleanup and moderniz
On Friday 20 November 2015, Finn Thain wrote:
>
> On Thu, 19 Nov 2015, Ondrej Zary wrote:
>
> > On Thursday 19 November 2015 03:24:56 Finn Thain wrote:
> >
> > > On Wed, 18 Nov 2015, Ondrej Zary wrote:
> > >
> > > >
> > > > I ha
On Saturday 21 November 2015 02:58:57 Finn Thain wrote:
>
> Hi Ondrej,
>
> On Fri, 20 Nov 2015, Ondrej Zary wrote:
>
> > On Friday 20 November 2015 02:41:19 Finn Thain wrote:
> > >
> > >
> > > My tests involved 3 different scsi targets (two d
On Saturday 21 November 2015 14:01:39 Ondrej Zary wrote:
> On Saturday 21 November 2015 02:58:57 Finn Thain wrote:
> >
> > Hi Ondrej,
> >
> > On Fri, 20 Nov 2015, Ondrej Zary wrote:
> >
> > > On Friday 20 November 2015 02:41:19 Finn Thain wrote:
>
On Sunday 22 November 2015 00:32:31 Finn Thain wrote:
>
> On Sat, 21 Nov 2015, Ondrej Zary wrote:
>
> > On Saturday 21 November 2015 02:58:57 Finn Thain wrote:
> >
> > >
> > > I gather that your setup here is a QUANTUM LP240S target with Domex
> &g
On Tuesday 24 November 2015, Finn Thain wrote:
>
> On Mon, 23 Nov 2015, Ondrej Zary wrote:
>
> >
> > PDMA seems to be broken in multiple ways. NCR5380_pread cannot process
> > less than 128 bytes. In fact, 53C400 datasheet says that it's HW
> > limitation: non
On Tuesday 24 November 2015, Finn Thain wrote:
>
> On Tue, 24 Nov 2015, Ondrej Zary wrote:
>
> > On Tuesday 24 November 2015, Finn Thain wrote:
> > >
> > > On Mon, 23 Nov 2015, Ondrej Zary wrote:
> > >
> > > >
> > > &
don't have such
> hardware. Likewise RiscPC ecards and Sun 3.
Tested on HP C2502 (53C400A chip), Canon FG2-5202 (53C400 chip) and DTC-3181L
(DTCT-436P chip) ISA cards - everything works fine!
Thanks.
Tested-by: Ondrej Zary <li...@rainbow-software.org>
HP C2502:
scsi host2: G
On Sunday 19 February 2017 00:27:55 Finn Thain wrote:
> On Sat, 18 Feb 2017, Ondrej Zary wrote:
> > On Friday 17 February 2017 23:38:12 Finn Thain wrote:
> > > On Thu, 16 Feb 2017, Ondrej Zary wrote:
> > > > On Tuesday 31 January
g" stops after a while. I get
gated 53C80 IRQ, BASR=0x10, MODE=0x0e, STATUS=0x7c.
When I enable interrupts during PDMA (like the removed UNSAFE macro did), the
problems go away. I see an IRQ after each pread call.
(had to disable "no 53C80 gated irq after transfer" and "no end dma
On Friday 17 February 2017 23:38:12 Finn Thain wrote:
> On Thu, 16 Feb 2017, Ondrej Zary wrote:
> > On Tuesday 31 January 2017 02:31:45 Finn Thain wrote:
> > [...]
> >
> > > Are you trying to figure out which commands are going to disconnect
> > > durin
On Sunday 11 September 2016 19:01:55 Christoph Hellwig wrote:
> On Wed, Mar 25, 2015 at 09:52:53PM +0100, Ondrej Zary wrote:
> > > - wd7000
> > > - aha1542
> > > - in2000
> > > - NCR53c406
> > > - sym53c416
> > > - u14-34f
> > &g
y works fine as it did never
before.
I started a patch to for scsi_module.c removal (and other good things) but
haven't had time to finish it. Hopefully, it will be ready soon.
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Merge the PIO and MMIO code (with the help of ioport_map) in g_NCR5380 and
delete g_NCR5380_mmio.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/Kconfig | 32 ++---
drivers/scsi/g_NCR5380.c | 257 +++--
driver
Remove compile-time card type definition GENERIC_NCR5380_OVERRIDE.
Then remove all code iterating the overrides[] array and reduce it to
struct card.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c | 351 ++
for g_NCR5380_mmio. Should I try to
merge the code so g_NCR5380 will support both PIO and MMIO cards (and
g_NCR5380_mmio could be removed)?
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Remove deprecated __setup for parsing command line parameters.
g_NCR5380.* parameters could be used instead.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c | 135 --
1 file changed, 135 deletions(-)
diff
Convert g_NCR5380 to use scsi_add_host instead of scsi_module.c
Use pnp_driver and isa_driver to manage cards.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c | 310 +-
drivers/scsi/g_NCR5380.h |8 --
2
er to register polling routines
> scsi/ncr5380: Expedite register polling
> scsi/ncr5380: Use correct types for DMA routines
> scsi/ncr5380: Suppress unhelpful "interrupt without IRQ bit" message
Tested on HP C2502 (53C400A chip), Canon FG2-5202 (53C400 chip) and DTC-
i.c | 83 +---
> drivers/scsi/sun3_scsi.c | 80 ++--
> 14 files changed, 495 insertions(+), 487 deletions(-)
> delete mode 100644 drivers/scsi/g_NCR5380_mmio.c
--
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_CARDS);
> #if !defined(SCSI_G_NCR5380_MEM) && defined(CONFIG_PNP)
> pnp_ret = pnp_register_driver(_NCR5380_pnp_driver);
> return pnp_ret ? isa_ret : 0;
> #endif
> return isa_ret;
> }
>
> static void __exit generic_NCR5380_exit(void)
> {
>
Remove deprecated __setup for parsing command line parameters.
g_NCR5380.* parameters could be used instead.
This might break existing setups with g_NCR5380 built-in (if there are
any). But it has to go in order to remove the overrides[] array.
Signed-off-by: Ondrej Zary <li...@rain
Convert g_NCR5380 to use scsi_add_host instead of scsi_module.c
Use pnp_driver and isa_driver to manage cards.
In order to support multiple cards, new module parameter format is
introduced. The old parameters are kept for compatibility.
Signed-off-by: Ondrej Zary <li...@rainbow-software.
Remove compile-time card type definition GENERIC_NCR5380_OVERRIDE.
Then remove all code iterating the overrides[] array and reduce it to
struct card.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c | 351 ++
/g_NCR5380.txt
- kept old-style module parameters for compatibility
- added missing NCR5380_exit() call
- fixed error propagation from init
- simplified driver registration
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Trigger an IRQ first with a test IRQ handler to find out if it really
works. Disable the IRQ if not.
This prevents hang when incorrect IRQ was specified by user.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c | 31 +--
purposes (testing if the IRQ works).
Also add missing IRQ reset after probe.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/NCR5380.c | 72 +-
drivers/scsi/NCR5380.h |3 +-
drivers/scsi/g_NCR5380.c |2 +-
3
purposes (testing if the IRQ works).
Also add missing IRQ reset after probe.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/NCR5380.c | 72 +-
drivers/scsi/NCR5380.h |3 +-
drivers/scsi/g_NCR5380.c |2 +-
3
Read back MODE_REG after writing it in NCR5380_init() to check if the
chip is really there.
This prevents hang when incorrect I/O address was specified by user.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/NCR5380.c |5 +
1 file changed, 5 insertions(+)
Trigger an IRQ first with a test IRQ handler to find out if it really
works. Disable the IRQ if not.
This prevents hang when incorrect IRQ was specified by user.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c | 32 ++--
When a SW-configurable card is specified but not found, the driver
releases wrong region, causing the following message in kernel log:
Trying to free nonexistent resource <-000f>
Fix it by assigning base earlier.
Signed-off-by: Ondrej Zary <li...@rainbow-sof
IRQ probing seems to work fine now. Default to autoprobe for IRQ instead
of disabling it.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c |4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/g_NCR5380.c b/driver
Trigger an IRQ first with a test IRQ handler to find out if it really
works. Disable the IRQ if not.
This prevents hang when incorrect IRQ was specified by user.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c
Hello,
this patch series improves IRQ probing and moves it from NCR5380 to
g_NCR5380, adds IRQ auto-configuration for HP C2502 and enables all
this by default. It also adds IRQ and base address checks to prevent
hangs when wrong values are specified by user. There's also a small
release region fix
Write and read back MODE_REG to check if the chip is really there
before doing more initialization.
This prevents hang when incorrect I/O address was specified by user (in
the most common case where no device is present there so all reads
result in 0xff).
Signed-off-by: Ondrej Zary <
Find free and working IRQ automatically on HP C2502 cards.
Also allow IRQ 9 to work (aliases to IRQ 2 on the card).
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c | 29 +++--
1 file changed, 27 insertions(+), 2 deletions(-)
purposes (testing if the IRQ works) and move the code from
NCR5380 to g_NCR5380.
Also add missing IRQ reset before and after the probe.
Signed-off-by: Ondrej Zary <li...@rainbow-software.org>
---
drivers/scsi/NCR5380.c | 77 +-
drivers/scsi/N
On Wednesday 02 November 2016 08:45:26 Finn Thain wrote:
> On Mon, 31 Oct 2016, Ondrej Zary wrote:
> > Trigger an IRQ first with a test IRQ handler to find out if it really
> > works. Disable the IRQ if not.
> >
> > This prevents hang when incorrect IRQ was specified b
On Monday 31 October 2016, Finn Thain wrote:
> On Sun, 30 Oct 2016, Ondrej Zary wrote:
> > Use standard probe_irq_on() and probe_irq_off() functions instead of own
> > implementation.
>
> Thanks for doing this.
>
> > This prevents warning messages like this in the
On Monday 31 October 2016, Finn Thain wrote:
> On Sun, 30 Oct 2016, Ondrej Zary wrote:
> > Trigger an IRQ first with a test IRQ handler to find out if it really
> > works. Disable the IRQ if not.
> >
> > This prevents hang when incorrect IRQ was specified by user.
&g
On Monday 31 October 2016, Finn Thain wrote:
> On Sun, 30 Oct 2016, Ondrej Zary wrote:
> > Read back MODE_REG after writing it in NCR5380_init() to check if the
> > chip is really there.
> >
> > This prevents hang when incorrect I/O address was specified by user.
> &g
On Thursday 03 November 2016, Finn Thain wrote:
> On Wed, 2 Nov 2016, Ondrej Zary wrote:
> > > Also, you've ignored the irq module parameters. From the user's point
> > > of view, surely the least surprising thing is to attempt to configure
> > > the card f
On Wednesday 02 November 2016, Finn Thain wrote:
> On Mon, 31 Oct 2016, Ondrej Zary wrote:
> > Use standard probe_irq_on() and probe_irq_off() functions instead of own
> > implementation. This prevents warning messages like this in the kernel
> > log: genirq: Flags mismatch
On Wednesday 02 November 2016, Finn Thain wrote:
> On Mon, 31 Oct 2016, Ondrej Zary wrote:
> > Find free and working IRQ automatically on HP C2502 cards.
> > Also allow IRQ 9 to work (aliases to IRQ 2 on the card).
> >
> > Signed-off-by: Ondrej Zary
On Monday 05 December 2016 07:07:19 Finn Thain wrote:
> This patch series is based on the one submitted recently by Ondrej Zary.
>
> This version has a different irq probing fix for HP C2502 boards and
> a more comprehensive patch to change the default irq parameter.
>
> It needs
is interrupted.
> - Rework residual calculation.
> - Add new patch to correct DMA terminology.
>
>
> Finn Thain (2):
> g_NCR5380: Cleanup comments and whitespace
> g_NCR5380: Use unambiguous terminology for PDMA send and receive
>
> Ondrej Zary (4):
> g_NCR5380:
is interrupted.
> - Rework residual calculation.
> - Add new patch to correct DMA terminology.
>
>
> Finn Thain (2):
> g_NCR5380: Cleanup comments and whitespace
> g_NCR5380: Use unambiguous terminology for PDMA send and receive
>
> Ondrej Zary (4):
> g_NCR5380:
er any short PDMA transfer.
> - Don't fail the transfer if the 53c400 logic got a reset.
>
>
> Finn Thain (1):
> g_NCR5380: Cleanup comments and whitespace
>
> Ondrej Zary (4):
> g_NCR5380: Fix PDMA transfer size
> g_NCR5380: End PDMA transfer correctly on target
On Friday 30 June 2017 09:12:37 Finn Thain wrote:
> On Thu, 29 Jun 2017, Ondrej Zary wrote:
> > The write corruption is still there. I'm afraid it can't be fixed
> > without rolling "start" back (or inceasing residual) if an error
> > occured, something like t
On Sunday 02 July 2017 05:11:27 Finn Thain wrote:
> On Sat, 1 Jul 2017, Ondrej Zary wrote:
> > The write corruption is still present - "start" must be rolled back in
> > both IRQ and timeout cases.
>
> Your original algorithm aborts the transfer for a timeout. Sa
CR5380: Cleanup comments and whitespace
> g_NCR5380: Use unambiguous terminology for PDMA send and receive
>
> Ondrej Zary (4):
> g_NCR5380: Fix PDMA transfer size
> g_NCR5380: End PDMA transfer correctly on target disconnection
> g_NCR5380: Re-work PDMA loops
> g_NCR5380:
workarounds to final patch.
>
>
> Finn Thain (2):
> g_NCR5380: Cleanup comments and whitespace
> g_NCR5380: Use unambiguous terminology for PDMA send and receive
>
> Ondrej Zary (4):
> g_NCR5380: Fix PDMA transfer size
> g_NCR5380: End PDMA transfer correctly on t
On Tuesday 27 June 2017 03:49:16 Finn Thain wrote:
> On Mon, 26 Jun 2017, Ondrej Zary wrote:
> > No apparent change in behavior, the first write test resulted in:
> > [ 842.830802] sd 2:0:1:0: [sdb] tag#0 53c80 registers not accessible,
> > device will be reset [ 842.830
needs to be fixed.
--
Ondrej Zary
on DTC and non-DTC
chips. I get many of these messages with CD-ROM:
[ 912.397076] generic_NCR5380_pread: No end dma signal (4096/4096)
[ 913.141225] generic_NCR5380_pread: No end dma signal (4096/4096)
Maybe just remove this error message as in my original patch?
--
Ondrej Zary
t of transfer loops when Gated IRQ gets asserted.
> - Make udelay conditional on board type.
> - Drop sg_tablesize patch due to performance regression.
>
>
> Finn Thain (1):
> g_NCR5380: Cleanup comments and whitespace
>
> Ondrej Zary (3):
> g_NCR5380: Fix PDMA trans
NCR5380: Limit sg_tablesize to avoid PDMA read overruns on DTC436
> g_NCR5380: Cleanup comments and whitespace
>
> Ondrej Zary (3):
> g_NCR5380: Fix PDMA transfer size
> g_NCR5380: End PDMA transfer correctly on target disconnection
> g_NCR5380: Re-work P
On Monday 26 June 2017, Finn Thain wrote:
> On Sun, 25 Jun 2017, Ondrej Zary wrote:
> > It mostly works, but there are some problems:
> >
> > It's not reliable - we continue the data transfer after poll_politely2
> > returns zero but we don't know if it returned becau
On Tuesday 27 June 2017 14:42:29 Finn Thain wrote:
> On Tue, 27 Jun 2017, Ondrej Zary wrote:
> > BTW. I've probably found the DTC write corruption. Added the following
> > check (13 is host buffer index register) -
>
> That register is not mentioned in my 53c400
On Monday 26 June 2017, Ondrej Zary wrote:
> On Monday 26 June 2017 09:30:33 Finn Thain wrote:
> > Ondrej, would you please test this new series?
> >
> > Changed since v1:
> > - PDMA transfer residual is calculated earlier.
> > - End of DMA flag check is now
On Thursday 09 August 2018 07:35:33 Christoph Hellwig wrote:
> On Wed, Aug 08, 2018 at 10:30:19PM +0200, Ondrej Zary wrote:
> > Then it crashes with null-pointer dereference in aha1542_reset.
>
> Must be the dma_unmap. Updated patch below:
No change in behavior, unfortuna
1542_init+0x33/0x1000 [aha1542]
[ 159.264103] do_one_initcall+0x60/0x11f
[ 159.264103] ? _cond_resched+0x1e/0x22
[ 159.264103] ? slab_pre_alloc_hook+0x25/0x35
[ 159.264103] ? do_init_module+0x17/0x1ad
[ 159.264103] ? kmem_cache_alloc+0x79/0x9c
[ 159.264103] ? do_init_module+0x17/0x1ad
[ 159.264103] do_init_module+0x46/0x1ad
[ 159.264103] load_module+0x1708/0x1b23
[ 159.264103] ? kernel_read_file+0x116/0x143
[ 159.264103] sys_finit_module+0x62/0x67
[ 159.264103] do_int80_syscall_32+0x50/0x62
[ 159.264103] entry_INT80_32+0x2a/0x2a
[ 159.264103] EIP: 0xb7f66a02
[ 159.264103] EFLAGS: 0292 CPU: 0
[ 159.264103] EAX: ffda EBX: 0003 ECX: 004fa970 EDX:
[ 159.264103] ESI: 00563e30 EDI: 00563ef8 EBP: ESP: bf9100d8
[ 159.264103] DS: 007b ES: 007b FS: GS: 0033 SS: 007b
[ 159.264103] Code: 40 54 e8 44 ff ff ff c7 43 54 00 00 00 00 5b 5d c3 55 89
e5 56 53 89 c3 83 ec 08 31 c0 c6 45 f3 01 c6 45 f4 08 8b 93 7c
04 00 00 04 02 00 6b d0 0b 8b b3 7c 04 00 00 03 93 88 04 00 00 01 c6
[ 159.264103] EIP: setup_mailboxes+0x1a/0xb5 [aha1542] SS:ESP: 0068:cbf07cf8
[ 159.264103] CR2:
[ 159.479491] ---[ end trace 139123655cd08eca ]---
--
Ondrej Zary
ery
[ 132.830010] scsi host2: Unexpected interrupt
[ 132.833680] scsi host2: tarstat=0, hastat=0 idlun=20 ccb#=0
[ 133.083186] scsi host2: Unexpected interrupt
[ 133.087100] scsi host2: tarstat=0, hastat=0 idlun=20 ccb#=0
--
Ondrej Zary
On Wednesday 08 August 2018 11:14:33 Christoph Hellwig wrote:
> On Tue, Aug 07, 2018 at 07:30:17PM +0200, Ondrej Zary wrote:
> > On Tuesday 07 August 2018 09:29:59 Christoph Hellwig wrote:
> > > Looks like the dma allocation is too late. Updated version below:
> > >
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