aboutsummaryrefslogtreecommitdiff
path: root/drivers/ata/libata.h
AgeCommit message (Collapse)Author
2007-03-28[libata] Disable ACPI by default; fix namespace problemsJeff Garzik
Not yet ready to turn on ATA ACPI by default, for either PATA or SATA. Also, rename the global-scope module parameter variable 'noacpi' to something more libata-specific, reducing the potential for namespace collision. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-21SiS warning fixesAlan
Somehow the sis_info133 external definition ended up in libata.h and that was included by both drivers. However libata.h contains libata-* specific internals and clashing defines like DRV_NAME so this makes a mess. Move the extern into the C file and remove the warnings [akpm@linux-foundation.org: create sis.h to avoid extern-decl-in-C] Signed-off-by: Alan Cox <alan@redhat.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-21libata: kill ATA_DNXFER_ANYTejun Heo
ATA_DNXFER_ANY isn't used anymore. Kill it. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-21libata: improve ata_down_xfermask_limit()Tejun Heo
Make ata_down_xfermask_limit() accept @sel instead of @force_pio0. @sel selects how the xfermask limit will be adjusted. The following selectors are defined. * ATA_DNXFER_PIO : only speed down PIO * ATA_DNXFER_DMA : only speed down DMA, don't cause transfer mode change * ATA_DNXFER_40C : apply 40c cable limit * ATA_DNXFER_FORCE_PIO : force PIO * ATA_DNXFER_FORCE_PIO0 : force PIO0 (same as original with @force_pio0 == 1) * ATA_DNXFER_ANY : same as original with @force_pio0 == 0 Currently, only ANY and FORCE_PIO0 are used to maintain the original behavior. Other selectors will be used later to improve EH speed down sequence. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-16[PATCH] libata: ACPI _SDD supportKristen Carlson Accardi
_SDD (Set Device Data) is an ACPI method that is used to tell the firmware what the identify data is of the device that is attached to the port. It is an optional method, and it's ok for it to be missing. Because of this, we always return success from the routine that calls this method, even if the execution fails. Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org> (cherry picked from 39aa79e0a1f5f2e28aa341f035940746a98b45b1 commit)
2007-02-16[PATCH] libata: ACPI and _GTF supportKristen Carlson Accardi
_GTF is an acpi method that is used to reinitialize the drive. It returns a task file containing ata commands that are sent back to the drive to restore it to boot up defaults. Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org> (cherry picked from 9c69cab24b51a89664f4c0dfaf8a436d32117624 commit)
2007-02-09[libata] Shuffle DRV_xxx in core and SiS drivers, to kill warningsJeff Garzik
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-09fix CONFIG_SATA_SIS=y compile errorAdrian Bunk
Static code shouldn't be used from other modules. drivers/built-in.o: In function `sis_init_one': sata_sis.c:(.text+0x7634cd): undefined reference to `sis_info133' sata_sis.c:(.text+0x7634d6): undefined reference to `sis_info133' While I was at it, I also moved the prototype of this struct to a header file. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Jeff Garzik <jeff@garzik.org> Cc: Tejun Heo <htejun@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-05Merge branch 'master' of ↵David Howells
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: drivers/ata/libata-scsi.c include/linux/libata.h Futher merge of Linus's head and compilation fixups. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-12-03[PATCH] libata: always use polling IDENTIFYTejun Heo
libata switched to IRQ-driven IDENTIFY when IRQ-driven PIO was introduced. This has caused a lot of problems including device misdetection and phantom device. ATA_FLAG_DETECT_POLLING was added recently to selectively use polling IDENTIFY on problemetic drivers but many controllers and devices are affected by this problem and trying to adding ATA_FLAG_DETECT_POLLING for each such case is diffcult and not very rewarding. This patch makes libata always use polling IDENTIFY. This is consistent with libata's original behavior and drivers/ide's behavior. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-03[PATCH] libata: prepare ata_sg_clean() for invocation from EHTejun Heo
Make ata_sg_clean() global and don't allow NCQ for internal commands. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-12-03[PATCH] libata: separate out rw ATA taskfile building into ata_build_rw_tf()Tejun Heo
Separate out rw ATA taskfile building from ata_scsi_rw_xlat() into ata_build_rw_tf(). This will be used to improve media error handling. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-12-03[PATCH] libata: implement ata_exec_internal_sg()Tejun Heo
Sg'ify ata_exec_internal() and call it ata_exec_internal_sg(). Wrapper function around ata_exec_internal_sg() is implemented to provide ata_exec_internal() interface. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-12-01[PATCH] libata: implement ata_tf_read_block()Tejun Heo
Implement ata_tf_read_block(). Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-01[PATCH] libata: implement presence detection via polling IDENTIFYTejun Heo
On some controllers (ICHs in piix mode), there is *NO* reliable way to determine device presence other than issuing IDENTIFY and see how the transaction proceeds by watching the TF status register. libata acted this way before irq-pio and phantom devices caused very little problem but now that IDENTIFY is performed using IRQ drive PIO, such phantom devices now result in multiple 30sec timeouts during boot. This patch implements ATA_FLAG_DETECT_POLLING. If a LLD sets this flag, libata core issues the initial IDENTIFY in polling mode and if the initial data transfer fails w/ HSM violation, the port is considered to be empty thus replicating the old libata and IDE behavior. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-01[PATCH] libata: convert @post_reset to @flags in ata_dev_read_id()Tejun Heo
Make ata_dev_read_id() take @flags instead of @post_reset. Currently there is only one flag defined - ATA_READID_POSTRESET, which is equivalent to @post_reset. This is preparation for polling presence detection. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-01[PATCH] libata: implement ATA_EHI_PRINTINFOTejun Heo
Implement ehi flag ATA_EHI_PRINTINFO. This flag is set when device configuration needs to print out device info. This used to be handled by @print_info argument to ata_dev_configure() but LLDs also need to know about it in ->dev_config() callback. This patch replaces @print_info w/ ATA_EHI_PRINTINFO and make sata_sil print workaround messages only on the initial configuration. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-01[PATCH] libata: move ata_irq_on() into libata-sff.cTejun Heo
ata_irq_on() isn't used outside of libata core layer. The function is TF/SFF interface specific but currently used by core path with some hack too. Move it from include/linux/libata.h to drivers/ata/libata-sff.c. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-22WorkStruct: Pass the work_struct pointer instead of context dataDavid Howells
Pass the work_struct pointer to the work function rather than context data. The work function can use container_of() to work out the data. For the cases where the container of the work_struct may go away the moment the pending bit is cleared, it is made possible to defer the release of the structure by deferring the clearing of the pending bit. To make this work, an extra flag is introduced into the management side of the work_struct. This governs auto-release of the structure upon execution. Ordinarily, the work queue executor would release the work_struct for further scheduling or deallocation by clearing the pending bit prior to jumping to the work function. This means that, unless the driver makes some guarantee itself that the work_struct won't go away, the work function may not access anything else in the work_struct or its container lest they be deallocated.. This is a problem if the auxiliary data is taken away (as done by the last patch). However, if the pending bit is *not* cleared before jumping to the work function, then the work function *may* access the work_struct and its container with no problems. But then the work function must itself release the work_struct by calling work_release(). In most cases, automatic release is fine, so this is the default. Special initiators exist for the non-auto-release case (ending in _NAR). Signed-Off-By: David Howells <dhowells@redhat.com>
2006-10-31[PATCH] libata: unexport ata_dev_revalidate()Tejun Heo
ata_dev_revalidate() isn't used outside of libata core. Unexport it. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-24libata: Grand renaming.Jeff Garzik
The biggest change is that ata_host_set is renamed to ata_host. * ata_host_set => ata_host * ata_probe_ent->host_flags => ata_probe_ent->port_flags * ata_probe_ent->host_set_flags => ata_probe_ent->_host_flags * ata_host_stats => ata_port_stats * ata_port->host => ata_port->scsi_host * ata_port->host_set => ata_port->host * ata_port_info->host_flags => ata_port_info->flags * ata_(.*)host_set(.*)\(\) => ata_\1host\2() The leading underscore in ata_probe_ent->_host_flags is to avoid reusing ->host_flags for different purpose. Currently, the only user of the field is libata-bmdma.c and probe_ent itself is scheduled to be removed. ata_port->host is reused for different purpose but this field is used inside libata core proper and of different type. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-10Move libata to drivers/ata.Jeff Garzik