Commit Graph

19 Commits

Author SHA1 Message Date
Jeff Garzik
95dbf5c4be Merge branch 'master' 2005-10-30 20:24:34 -05:00
Jeff Garzik
a9524a76f7 [libata] use dev_printk() throughout drivers
A few drivers were not following the standard meme of printing out
their driver name and version at module load time; this is fixed
as well.
2005-10-30 14:39:11 -05:00
Jeff Garzik
054ee8fd39 Merge branch 'upstream' 2005-10-30 04:50:22 -05:00
Jeff Garzik
a7dac447bb [libata] change ata_qc_complete() to take error mask as second arg
The second argument to ata_qc_complete() was being used for two
purposes: communicate the ATA Status register to the completion
function, and indicate an error.  On legacy PCI IDE hardware, the latter
is often implicit in the former.  On more modern hardware, the driver
often completely emulated a Status register value, passing ATA_ERR as an
indication that something went wrong.

Now that previous code changes have eliminated the need to use drv_stat
arg to communicate the ATA Status register value, we can convert it to a
mask of possible error classes.

This will lead to more flexible error handling in the future.
2005-10-30 04:44:42 -05:00
Jeff Garzik
7a9f8f93d2 Merge branch 'master' 2005-10-28 12:29:23 -04:00
Jeff Garzik
057ace5e79 libata: const-ification bombing run
Enforce access rules where appropriate.

If the compiler is smart enough, this may buy us an optimization or two
as a side effect.
2005-10-22 14:27:05 -04:00
Al Viro
a9afd7cd2f [PATCH] iomem annotations (sata_sx4)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-21 02:05:31 -04:00
Jeff Garzik
cedc9a478d libata: fix ATAPI DMA alignment issues
ATAPI needs to be padded to next 4 byte boundary, if misaligned.

Original work by me, many fixes from Tejun Heo.
2005-10-05 07:13:30 -04:00
Jeff Garzik
374b187357 [libata] update several drivers to use pci_iomap()/pci_iounmap() 2005-08-30 05:42:52 -04:00
Jeff Garzik
ea6ba10bbb [libata] __iomem annotations for various drivers 2005-08-30 05:18:18 -04:00
Jeff Garzik
70d374ea99 Merge /spare/repo/linux-2.6/ 2005-08-29 15:59:42 -04:00
Jeff Garzik
af36d7f0df [libata] license change, other bits
- changes license of all code from OSL+GPL to plain ole GPL
  - except for NVIDIA, who hasn't yet responded about sata_nv
  - copyright holders were already contacted privately

- adds info in each driver about where hardware/protocol docs may be
  obtained

- where I have made major contributions, updated copyright dates
2005-08-28 20:18:39 -04:00
Jeff Garzik
b8f6153ee4 libata: fix EH locking
Wrap ata_qc_complete() calls in EH context in spinlocks, to prevent
races (mainly in ATAPI code paths).
2005-08-25 22:01:20 -04:00
Tejun Heo
c138950371 [PATCH] fix atapi_packet_task vs. intr race (take 2)
Interrupts from devices sharing the same IRQ could cause
ata_host_intr to finish commands being processed by atapi_packet_task
if the commands are using ATA_PROT_ATAPI_NODATA or ATA_PROT_ATAPI_DMA
protocol.  This is because libata interrupt handler is unaware that
interrupts are not expected during that period.  This patch adds
ATA_FLAG_NOINTR flag to tell the interrupt handler that we're not
expecting interrupts.

 Note that once proper HSM is implemented for interrupt-driven PIO,
this should be merged into it and this flag will be removed.

 ahci.c is a different kind of beast, so it's left alone.

* The following drivers use ata_qc_issue_prot and ata_interrupt, so
  changes in libata core will do.

  ata_piix sata_sil sata_svw sata_via sata_sis sata_uli

* The following drivers use ata_qc_issue_prot and custom intr handler.
  They need this change to work correctly.

  sata_nv sata_vsc

* The following drivers use custom issue function and intr handler.
  Currently all custom issue functions don't support ATAPI, so this
  change is irrelevant, updated for consistency and to avoid later
  mistakes.

  sata_promise sata_qstor sata_sx4

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-23 01:05:55 -04:00
Jeff Garzik
4c71812261 Merge /spare/repo/linux-2.6/ 2005-08-11 03:33:08 -04:00
Tejun Heo
fae009847c [PATCH] sata: fix sata_sx4 dma_prep to not use sg->length
sata_sx4 directly references sg->length to calculate total_len in
pdc20621_dma_prep().  This is incorrect as dma_map_sg() could have
merged multiple sg's into one and, in such case, sg->length doesn't
reflect true size of the entry.  This patch makes it use
sg_dma_len(sg).

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-10 13:34:58 -04:00
Jeff Garzik
8a60a07129 libata: trim trailing whitespace.
Also, fixup a tabs-to-spaces block of code in ata_piix.
2005-07-31 13:13:24 -04:00
Jeff Garzik
aa8f0dc6c3 libata: Fix use-after-iounmap
Jens Axboe pointed out that the iounmap() call in libata was occurring
too early, and some drivers (ahci, probably others) were using ioremap'd
memory after it had been unmapped.

The patch should address that problem by way of improving the libata
driver API:

* move ->host_stop() call after all ->port_stop() calls have occurred.

* create default helper function ata_host_stop(), and move iounmap()
call there.

* add ->host_stop_prewalk() hook, use it in sata_qstor.c (hi Mark).
sata_qstor appears to require the host-stop-before-port-stop ordering
that existed prior to applying the attached patch.
2005-05-26 21:54:27 -04:00
Linus Torvalds
1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00