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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-12-13 01:31:58 +0300 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-12-13 01:31:58 +0300 |
| commit | 3ab7efe8e2cbcca2d401b43cfcc2fa9a7dac2299 (patch) | |
| tree | 7ddbb4d5fdae6f61d23ef0ba2a43aaca23bd2195 /drivers/ide/ide-disk.c | |
| parent | e11b9035a47da66fcd4bafd3a5f6b14f51ca667e (diff) | |
| download | linux-3ab7efe8e2cbcca2d401b43cfcc2fa9a7dac2299.tar.xz | |
ide: DMA reporting and validity checking fixes (take 3)
* ide_xfer_verbose() fixups:
- beautify returned mode names
- fix PIO5 reporting
- make it return 'const char *'
* Change printk() level from KERN_DEBUG to KERN_INFO in ide_find_dma_mode().
* Add ide_id_dma_bug() helper based on ide_dma_verbose() to check for invalid
DMA info in identify block.
* Use ide_id_dma_bug() in ide_tune_dma() and ide_driveid_update().
As a result DMA won't be tuned or will be disabled after tuning if device
reports inconsistent info about enabled DMA mode (ide_dma_verbose() does the
same checks while the IDE device is probed by ide-{cd,disk} device driver).
* Remove no longer needed ide_dma_verbose().
This patch should fix the following problem with out-of-sync IDE messages
reported by Nick Warne:
hdd: ATAPI 48X DVD-ROM DVD-R-RAM CD-R/RW drive, 2048kB Cache<7>hdd:
skipping word 93 validity check
, UDMA(66)
and later debugged by Mark Lord to be caused by:
ide_dma_verbose()
printk( ... "2048kB Cache");
eighty_ninty_three()
printk(KERN_DEBUG "%s: skipping word 93 validity check\n");
ide_dma_verbose()
printk(", UDMA(66)"
Please note that as a result ide-{cd,disk} device drivers won't report the
DMA speed used but this is intended since now DMA mode being used is always
reported by IDE core code.
v2:
* fixes suggested by Randy:
- use KERN_CONT for printk()-s in ide-{cd,disk}.c
- don't remove argument name from ide_xfer_verbose() declaration
v3:
* Remove incorrect check for (id->field_valid & 1) from ide_id_dma_bug()
(spotted by Sergei).
* "XFER SLOW" -> "PIO SLOW" in ide_xfer_verbose() (suggested by Sergei).
* Fix ide_find_dma_mode() to report the correct mode ('mode' after being
limited by 'req_mode').
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Nick Warne <nick@ukfsn.org>
Cc: Mark Lord <lkml@rtr.ca>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-disk.c')
| -rw-r--r-- | drivers/ide/ide-disk.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index 00123d99527a..b77c849cdd28 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -961,11 +961,8 @@ static void idedisk_setup (ide_drive_t *drive) if (id->buf_size) printk (" w/%dKiB Cache", id->buf_size/2); - printk(", CHS=%d/%d/%d", - drive->bios_cyl, drive->bios_head, drive->bios_sect); - if (drive->using_dma) - ide_dma_verbose(drive); - printk("\n"); + printk(KERN_CONT ", CHS=%d/%d/%d\n", + drive->bios_cyl, drive->bios_head, drive->bios_sect); /* write cache enabled? */ if ((id->csfo & 1) || (id->cfs_enable_1 & (1 << 5))) |