- 28 Apr, 2007 40 commits
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Tejun Heo authored
There are several registers which describe how the controller is configured. These registers are sometimes implemented as r/w registers which are configured by firmware and get cleared on controller reset or after suspend/resume cycle. ahci saved and restored those values inside ahci_reset_controller() which is a bit messy and doesn't work over suspend/resume cycle. This patch implements ahci_save/restore_initial_config(). The save function is called during driver initialization and saves cap and port_map to hpriv. The restore function is called after the controller is reset to restore the initial values. Sometimes the initial firmware values are inconsistent and need to be fixed up. This is handled by ahci_save_initial_config(). For this, there are two versions of saved registers. One to write back to the hardware register, the other to use during driver operation. This is necessary to keep ahci's behavior unchanged (write back fixed up port_map while keeping cap as-is). This patch makes ahci save the register values once before the first controller reset, not after it's been reset. Also, the same stored values are used written back after each reset, so the register values are properly recovered after suspend/resume cycle. Signed-off-by:
Tejun Heo <htejun@gmail.com> Signed-off-by:
Jeff Garzik <jeff@garzik.org>
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Mikael Pettersson authored
Promise ATA ports should always be reset by pdc_reset_port() when errors are detected, but the recent error reason decoding update to sata_promise replaced that reset with a freeze. This patch changes the error detection to do a reset again. This makes the error decoding update safer, as it now only adds error decoding without changing any other behaviour. Signed-off-by:
Mikael Pettersson <mikpe@it.uu.se> Signed-off-by:
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Alan Cox authored
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Alan Cox <alan@redhat.com> Correct missing modefilter (crash if BAR4 unassigned) Use Cable Detect method Wrap ->set_mode instead ready for ->post_set_mode removal Maxtor errata as per Jeff Garzik report Remove duplicated private udma_mask hacking Signed-off-by:
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Alan Cox authored
Not a PCI device so doesn't need PCI includes Signed-off-by:
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Alan Cox authored
Versus upstream as requested Last of the trivial switches to cable_detect methods. Signed-off-by:
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Mark Lord authored
The READ/WRITE LONG commands are theoretically obsolete, but the majority of drives in existance still implement them. The WRITE_LONG and WRITE_LONG_ONCE commands are of particular interest for fault injection testing -- eg. creating "media errors" at specific locations on a disk. The fussy bit is that these commands require a non-standard sector size, usually 520 bytes instead of 512. This patch adds support to libata for READ/WRITE LONG commands issued via SG_IO/ATA_16. Signed-off-by:
Mark Lord <mlord@pobox.com> Signed-off-by:
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Robin H\. Johnson authored
The Asus W5F laptop uses a short cable instead of the 80-wire style, and thus needs to be in the ich_laptop special cases for correct detection and support of UDMA/100 for the hard drive. I noticed this because I have the W5F laptop, and was tracing apparent slowness. Signed-off-by:
Robin H. Johnson <robbat2@gentoo.org> Signed-off-by:
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Alan Cox authored
A lot of noise because I had to rename the optidma_set_mode() method to avoid confusion with the new ->set_mode() method that was added. Cable detect side is pretty trivial. Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Alan Cox authored
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Alan Cox authored
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Alan Cox authored
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Alan Cox authored
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Alan Cox <number6@the-village.bc.nu> Signed-off-by:
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Alan Cox authored
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Robert Hancock authored
Reading from the ATA shadow registers while we are in ADMA mode may cause undefined behavior. Don't read the ATA status register when completing commands for this reason, it shouldn't be needed as the controller will notify us if the command failed. Also, don't allow commands with result taskfile requested to execute in ADMA mode, since that requires accessing the shadow registers. We also still need to override tf_read since libata will read the result taskfile on a command failure, and we need to go into port register mode before allowing this. Signed-off-by:
Robert Hancock <hancockr@shaw.ca> Signed-off-by:
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Alan authored
It tries to spot when the slave is a mirror of the master and to fix up problems that causes. I've got two confirmations so far that this plus the "can fail set_xfer" patch work for folks who had problems before. Also if you are unfortunate enough to be running something like HAL then it'll automount the same disk twice for you and corrupt it without the fix (aint that nice...) Tested (successfully) by Komuro <komurojun-mbn@nifty.com>. Signed-off-by:
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Andrew Morton authored
drivers/scsi/ipr.c: In function '__ipr_eh_dev_reset': drivers/scsi/ipr.c:3865: warning: passing argument 4 of 'ata_do_eh' from incompatible pointer type Cc: Tejun Heo <htejun@gmail.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by:
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Tejun Heo authored
There was a rare report where SB600 reported SERR_INTERNAL and SRST couldn't get it out of the failure mode. Hardreset on SERR_INTERNAL. As the problem is intermittent, whether this fixes the problem or not hasn't been verified yet, but hardresetting the channel on internal error is a good idea anyway. Signed-off-by:
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Mikael Pettersson authored
This patch adds much needed error reason decoding and reporting to sata_promise. It's simplistic but should log all relevant error info the controller provides. Signed-off-by:
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Mikael Pettersson authored
This patch changes sata_promise so that the PATA ports on TX2plus chips are bound to the pdc_pata_ops structure. This means that operations called from the SATA ops structures don't need any SATA-vs-PATA tests any more. Instead, operations that depend on a port being SATA or PATA are separated into different procedures. * pdc_cable_type() is split into a PATA version and a SATA version * pdc_error_handler() is split into a PATA version and a SATA version, that both call a common version after setting up the `hardreset' function pointer * pdc_old_check_atapi_dma() is now only used for SATAI ports, so is renamed to pdc_old_sata_check_atapi_dma() and simplified * pdc_sata_scr_{read,write}() are now only used for SATA ports, so their is-not-SATA tests are removed * pdc_port_start() is split into three procedures: a wrapper which performs the ->ops adjustment on TX2plus PATA ports, a procedure with the common code, and a procedure with the SATA-specific code (this bit might be cleaned up by Tejun's new init model) Tested on 20619, 20575, and 20775 chips. Signed-off-by: -
Mikael Pettersson authored
The recent change which moved cable detection from pdc_pre_reset() to the new ->cable_detect hook only added the hook for SATAII chips, leaving SATAI chips and the 20619 without the hook. Fixed by this patch. Signed-off-by:
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Jeff Garzik authored
Both old-IDE and libata should be able handle all controllers and devices found using normal resource reservation methods. This eliminates the awful, low-performing split-driver configuration where old-IDE drove the PATA portion of a PCI device, in PIO-only mode, and libata drove the SATA portion of the /same/ PCI device, in DMA mode. Typically vendors would ship SATA hard drive / PATA optical configuration, which would lend itself to slow (PIO-only) CD-ROM performance. For Intel users running in combined mode, it is now wholly dependent on your driver choice (potentially link order, if you compile both drivers in) whether old-IDE or libata will drive your hardware. In either case, you will get full performance from both SATA and PATA ports now, without having to pass a kernel command line parameter. Signed-off-by: -
Jeff Garzik authored
The previous commit erroneously noted that the !IORDY filter was turned on. No true, that change was split out into this commit. Originally authored and signed-off-by Alan Cox. Signed-off-by: -
Jeff Garzik authored
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Alan Cox authored
With Tejun having added adev->ap some time ago we can get rid of the almost unused port being passed to mode filters. And while we are doing filters, lets turn on the !IORDY filter as well. Signed-off-by:
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Alan Cox authored
Now that we have ata_do_set_mode() available for drivers to use we don't actually need ->post_set_mode() as the driver can wrap set_mode nicely and do stuff before or after (eg PCMCIA needs before), so we can kill off a method in all the structs While I was at it I added kernel-doc to the function involved. Signed-off-by:
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Alan Cox authored
This alone isn't sufficient to save the universe from prehistoric disks and controllers but it is a first important step. Split off a separate function to provide a mode filter when controller iordy is not available. Signed-off-by:
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Alan authored
This splits set_mode into do_set_mode and the wrapper so that a driver can call the standard method inside its own. This in theory also obsoletes ->post_set_mode(). Signed-off-by:
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Alan Cox authored
Drag pata_hpt37x kicking and screaming in the direction of drivers/ide/pci/hpt366.c and all the work that Sergei has been doing there. Plenty left to be done but this is a good snapshot for folks to work on and to review Signed-off-by:
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Tejun Heo authored
Implement pcim_iounmap_regions() - the opposite of pcim_iomap_regions(). Signed-off-by:
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Jeff Garzik authored
Roll-up of ->cable_detect feature addition patches, authored and signed-off-by Alan Cox. Signed-off-by: -
Alan Cox authored
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Alan Cox authored
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Alan Cox authored
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Alan Cox authored
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Alan Cox authored
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Alan Cox authored
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Alan Cox authored
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Alan Cox authored
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Alan Cox authored
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Alan Cox authored
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