kernel.git/include/linux/libata.h, branch linux-2.6.21.y

libata: Limit ATAPI DMA to R/W commands only for TORiSAN DVD drives (take 3)

2007-04-04T06:12:27Z

patch 4/4: Limit ATAPI DMA to R/W commands only for TORiSAN DRD-N216 DVD-ROM drives (http://bugzilla.kernel.org/show_bug.cgi?id=6710) Signed-off-by: Albert Lee Signed-off-by: Jeff Garzik

libata: Limit max sector to 128 for TORiSAN DVD drives (take 3)

2007-04-04T06:12:27Z

patch 3/4: The TORiSAN drive locks up when max sector == 256. Limit max sector to 128 for the TORiSAN DRD-N216 drives. (http://bugzilla.kernel.org/show_bug.cgi?id=6710) Signed-off-by: Albert Lee Signed-off-by: Jeff Garzik

libata: reorder HSM_ST_FIRST for easier decoding (take 3)

2007-04-04T06:12:27Z

patch 1/4: Reorder HSM_ST_FIRST, such that the task state transition is easier decoded with human eyes. Signed-off-by: Albert Lee Signed-off-by: Jeff Garzik

libata: add CONFIG_PM to libata core layer

2007-03-02T23:30:35Z

Conditionalize all PM related stuff in libata core layer using CONFIG_PM. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik

libata-core: Fix simplex handling

2007-03-02T22:42:48Z

The initial simplex handling code is fooled if you suspend and resume. This also causes problems with some single channel controllers which claim to be simplex. The fix is fairly simple, instead of keeping a flag to remember if we gave away the simplex channel we remember the actual owner. As the owner is always part of the host_set we don't even need a refcount. Knowing the owner also means we can reassign simplex DMA channels in future hotplug code etc if we need to Signed-off-by: Alan Cox (and a signed-off for the patch I sent before while I remember) Signed-off-by: Jeff Garzik

Add id_to_dma_mode function for printing DMA modes

2007-02-25T20:41:40Z

Also export dev_disable as this is needed by drivers doing slave decode filtering, which will follow shortly Signed-off-by: Alan Cox Signed-off-by: Jeff Garzik

libata: s/ap->id/ap->print_id/g

2007-02-21T09:58:20Z

ata_port has two different id fields - id and port_no. id is system-wide 1-based unique id for the port while port_no is 0-based host-wide port number. The former is primarily used to identify the ATA port to the user in printk messages while the latter is used in various places in libata core and LLDs to index the port inside the host. The two fields feel quite similar and sometimes ap->id is used in place of ap->port_no, which is very difficult to spot. This patch renames ap->id to ap->print_id to reduce the possibility of such bugs. Some printk messages are adjusted such that id string (ata%u[.%u]) isn't printed twice and/or to use ata_*_printk() instead of hardcoded id format. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik

libata: separate out ata_ncq_enabled()

2007-02-21T09:58:18Z

Separate out ata_ncq_enabled(). Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik

libata: put some intelligence into EH speed down sequence

2007-02-21T09:58:16Z

The current EH speed down code is more of a proof that the EH framework is capable of adjusting transfer speed in response to error. This patch puts some intelligence into EH speed down sequence. The rules are.. * If there have been more than three timeout, HSM violation or unclassified DEV errors for known supported commands during last 10 mins, NCQ is turned off. * If there have been more than three timeout or HSM violation for known supported command, transfer mode is slowed down. If DMA is active, it is first slowered by one grade (e.g. UDMA133->100). If that doesn't help, it's slowered to 40c limit (UDMA33). If PIO is active, it's slowered by one grade first. If that doesn't help, PIO0 is forced. Note that this rule does not change transfer mode. DMA is never degraded into PIO by this rule. * If there have been more than ten ATA bus, timeout, HSM violation or unclassified device errors for known supported commands && speeding down DMA mode didn't help, the device is forced into PIO mode. Note that this rule is considered only for PATA devices and is pretty difficult to trigger. One error can only trigger one rule at a time. After a rule is triggered, error history is cleared such that the next speed down happens only after some number of errors are accumulated. This makes sense because now speed down is done in bigger stride. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik

libata: PATA driver for Celleb

2007-02-21T09:58:16Z

This is the patch for PATA controller of Celleb. This driver uses the managed iomap (devres). Because this driver needs special taskfile accesses, there is a copy of ata_std_softreset(). ata_dev_try_classify() is exported so that it can be used in this function. Signed-off-by: Kou Ishizaki Signed-off-by: Akira Iguchi Signed-off-by: Jeff Garzik