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path: root/drivers/ata/ata_generic.c
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2008-01-23ata_generic: Cenatek supportAlan Cox1-1/+6
Not much to do here. It's an ata memory as disk. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-23libata: kill ata_id_to_dma_mode()Tejun Heo1-1/+16
ata_id_to_dma_mode() isn't quite generic. The function is basically privately implemented ata_id_xfermask() combined with hardcoded mode printing and configuration which are specific to ata_generic. Kill the function and open code it in generic_set_mode() using generic xfermode handling functions. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-23ata_generic: unindent loop in generic_set_mode()Tejun Heo1-15/+16
Unindent loop body in generic_set_mode(). This is to ease future change. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata: Switch most of the remaining SFF drivers to ata_sff_port_startAlan Cox1-1/+1
This avoids allocating DMA buffers if not needed but at the moment is mostly just a neatness item. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12[libata] Remove ->port_disable() hookJeff Garzik1-1/+0
It was always set to ata_port_disable(). Removed the hook, and replaced the very few ap->ops->port_disable() callsites with direct calls to ata_port_disable(). Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12[libata] Remove ->irq_ack() hook, and ata_dummy_irq_on()Jeff Garzik1-1/+0
* ->irq_ack() is redundant to what the irq handler already performs... chk-status + irq-clear. Furthermore, it is only called in one place, when screaming-irq-debugging is enabled, so we don't want to bother with a hook just for that. * ata_dummy_irq_on() is only ever used in drivers that have no callpath reaching ->irq_on(). Remove .irq_on hook from those drivers, and the now-unused ata_dummy_irq_on() Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata-link: linkify config/EH related functionsTejun Heo1-3/+4
Make the following functions deal with ata_link instead of ata_port. * ata_set_mode() * ata_eh_autopsy() and related functions * ata_eh_report() and related functions * suspend/resume related functions * ata_eh_recover() and related functions Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata-link: implement and use link/device iteratorsTejun Heo1-4/+3
Multiple links and different number of devices per link should be considered to iterate over links and devices. This patch implements and uses link and device iterators - ata_port_for_each_link() and ata_link_for_each_dev() - and ata_link_max_devices(). This change makes a lot of functions iterate over only possible devices instead of from dev 0 to dev ATA_MAX_DEVICES. All such changes have been examined and nothing should be broken. While at it, add a separating comment before device helpers to distinguish them better from link helpers and others. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12libata-link: introduce ata_linkTejun Heo1-1/+1
Introduce ata_link. It abstracts PHY and sits between ata_port and ata_device. This new level of abstraction is necessary to support SATA Port Multiplier, which basically adds a bunch of links (PHYs) to a ATA host port. Fields related to command execution, spd_limit and EH are per-link and thus moved to ata_link. This patch only defines the host link. Multiple link handling will be added later. Also, a lot of ap->link derefences are added but many of them will be removed as each part is converted to deal directly with ata_link instead of ata_port. This patch introduces no behavior change. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-08-31[libata] Bump driver versionsJeff Garzik1-1/+1
Bump the versions for drivers that were modified, but had not already had a version number bump. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-09[libata] Use ATA_UDMAx standard masks when filling driver's udma_mask infoJeff Garzik1-1/+1
The ATA_UDMAx masks are self-documenting, and far better than manually writing in the hex mask. Note that pata_it8213 mask differed from the comment. Added a FIXME there. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-09[libata] PATA drivers: remove ATA_FLAG_SRSTJeff Garzik1-1/+1
This flag only has meaning in old-EH drivers, and these drivers have already been converted to the new EH. Remove. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-03ata_generic: Check the right register for the DMA enabled flagsAlan Cox1-1/+1
Mirrors change in IT821X Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-21libata: bump versionsJeff Garzik1-1/+1
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-11libata: clean up SFF init messTejun Heo1-3/+3
The intention of using port_mask in SFF init helpers was to eventually support exoctic configurations such as combination of legacy and native port on the same controller. This never became actually necessary and the related code always has been subtly broken one way or the other. Now that new init model is in place, there is no reason to make common helpers capable of handling all corner cases. Exotic cases can simply dealt within LLDs as necessary. This patch removes port_mask handling in SFF init helpers. SFF init helpers don't take n_ports argument and interpret it into port_mask anymore. All information is carried via port_info. n_ports argument is dropped and always two ports are allocated. LLD can tell SFF to skip certain port by marking it dummy. Note that SFF code has been treating unuvailable ports this way for a long time until recent breakage fix from Linus and is consistent with how other drivers handle with unavailable ports. This fixes 1-port legacy host handling still broken after the recent native mode fix and simplifies SFF init logic. The following changes are made... * ata_pci_init_native_host() and ata_init_legacy_host() both now try to initialized whatever they can and mark failed ports dummy. They return 0 if any port is successfully initialized. * ata_pci_prepare_native_host() and ata_pci_init_one() now doesn't take n_ports argument. All info should be specified via port_info array. Always two ports are allocated. * ata_pci_init_bmdma() exported to be used by LLDs in exotic cases. * port_info handling in all LLDs are standardized - all port_info arrays are const stack variable named ppi. Unless the second port is different from the first, its port_info is specified as NULL (tells libata that it's identical to the last non-NULL port_info). * pata_hpt37x/hpt3x2n: don't modify static variable directly. Make an on-stack copy instead as ata_piix does. * pata_uli: It has 4 ports instead of 2. Don't use ata_pci_prepare_native_host(). Allocate the host explicitly and use init helpers. It's simple enough. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-11libata: reimplement suspend/resume support using sdev->manage_start_stopTejun Heo1-5/+1
Reimplement suspend/resume support using sdev->manage_start_stop. * Device suspend/resume is now SCSI layer's responsibility and the code is simplified a lot. * DPM is dropped. This also simplifies code a lot. Suspend/resume status is port-wide now. * ata_scsi_device_suspend/resume() and ata_dev_ready() removed. * Resume now has to wait for disk to spin up before proceeding. I couldn't find easy way out as libata is in EH waiting for the disk to be ready and sd is waiting for EH to complete to issue START_STOP. * sdev->manage_start_stop is set to 1 in ata_scsi_slave_config(). This fixes spindown on shutdown and suspend-to-disk. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28pata: cable methodsAlan Cox1-30/+2
Versus upstream as requested Last of the trivial switches to cable_detect methods. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-02libata: add missing CONFIG_PM in LLDsTejun Heo1-0/+4
Add missing #ifdef CONFIG_PM conditionals around all PM related parts in libata LLDs. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-26[libata] bump versionsJeff Garzik1-1/+1
Bump versions based on changes submitted during 2.6.21 merge window. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25libata: Use new id_to_dma_mode function to tidy reporting in more drivers ↵Alan1-2/+2
(minimally tested) Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-09libata: add another IRQ calls (libata drivers)Akira Iguchi1-0/+2
This patch is against each libata driver. Two IRQ calls are added in ata_port_operations. - irq_on() is used to enable interrupts. - irq_ack() is used to acknowledge a device interrupt. In most drivers, ata_irq_on() and ata_irq_ack() are used for irq_on and irq_ack respectively. In some drivers (ex: ahci, sata_sil24) which cannot use them as is, ata_dummy_irq_on() and ata_dummy_irq_ack() are used. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Signed-off-by: Akira Iguchi <akira2.iguchi@toshiba.co.jp> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-09libata: convert to iomapTejun Heo1-2/+2
Convert libata core layer and LLDs to use iomap. * managed iomap is used. Pointer to pcim_iomap_table() is cached at host->iomap and used through out LLDs. This basically replaces host->mmio_base. * if possible, pcim_iomap_regions() is used Most iomap operation conversions are taken from Jeff Garzik <jgarzik@pobox.com>'s iomap branch. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-09libata: update libata LLDs to use devresTejun Heo1-2/+0
Update libata LLDs to use devres. Core layer is already converted to support managed LLDs. This patch simplifies initialization and fixes many resource related bugs in init failure and detach path. For example, all converted drivers now handle ata_device_add() failure gracefully without excessive resource rollback code. As most resources are released automatically on driver detach, many drivers don't need or can do with much simpler ->{port|host}_stop(). In general, stop callbacks are need iff port or host needs to be given commands to shut it down. Note that freezing is enough in many cases and ports are automatically frozen before being detached. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-24libata: set_mode, Fix the FIXMEAlan1-2/+4
When set_mode() changed ->set_mode didn't adapt. This makes the needed changes and removes the relevant FIXME case. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-03[PATCH] libata: kill unnecessary sht->max_sectors initializationsTejun Heo1-1/+0
sht->max_sectors is overrided unconditionally in ->slave_configure. There's no reason to set it to any value. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-12-01[PATCH] PATA libata: suspend/resume simple casesAlan1-2/+6
This patch adds the suspend/resume callbacks for drivers which don't need any additional help (beyond the pci resume quirk patch I posted earlier anyway). Also bring version numbers back inline with master copies. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-01[PATCH] pci_module_init-convertion-in-ata_genericc fixAlan Cox1-1/+1
Acked-by: Alan Cox <alan@redhat.com> but please apply as follows to keep revision id straight Cc: Henrik Kretzschmar <henne@nachtwindheim.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-01[PATCH] pci_module_init convertion in ata_generic.cHenrik Kretzschmar1-1/+1
pci_module_init convertion in ata_generic.c. Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-29[PATCH] libata: add missing sht->slave_destroyTejun Heo1-0/+1
Many LLDs are missing sht->slave_destroy. The method is mandatory to support device warm unplugging (echo 1 > /sys/.../delete). Without it, libata might access released scsi device. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-09-27[libata] Don't use old-EH ->eng_timeout() hook when not neededJeff Garzik1-1/+1
The PATA driver set got converted to the new error handling setup, but the old hooks were accidentally left in place. Now, removed. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-31[libata #pata-drivers] Trim trailing whitespace.Jeff Garzik1-18/+18
2006-08-29[libata] Add a bunch of PATA drivers.Jeff Garzik1-0/+252
The vast majority of drivers and changes are from Alan Cox. Albert Lee contributed and maintains pata_pdc2027x. Adrian Bunk, Andrew Morton, and Tejun Heo contributed various minor fixes and updates. Signed-off-by: Jeff Garzik <jeff@garzik.org>
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