summaryrefslogtreecommitdiff
path: root/include/linux/libata.h
AgeCommit message (Collapse)AuthorFilesLines
2006-04-02[PATCH] libata: ATA_FLAG_IN_EH is not used, kill itTejun Heo1-1/+0
Kill unused flag ATA_FLAG_IN_EH. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-04-02[PATCH] libata: improve ata_bus_probe()Tejun Heo1-0/+3
Improve ata_bus_probe() such that configuration failures are handled better. Each device is given ATA_PROBE_MAX_TRIES chances, but any non-transient error (revalidation failure with -ENODEV, configuration failure with -EINVAL...) disables the device directly. Any IO error results in SATA PHY speed down and ata_set_mode() failure lowers transfer mode. The last try always puts a device into PIO-0. After each failure, the whole port is reset to make sure that the controller and all the devices are in a known and stable state. The reset also applies SATA SPD configuration if necessary. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-04-02[PATCH] libata: implement ap->sata_spd_limit and helpersTejun Heo1-0/+1
ap->sata_spd_limit contrains SATA PHY speed of the port. It is initialized to the configured value prior to probing thus preserving BIOS configured value. hardreset is responsible for applying SPD limit and sata_std_hardreset() is updated to do that. SATA SPD limit will be used to enhance failure handling during probing and later by EH. This patch also normalizes some comments around affected code. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-04-02[PATCH] libata: implement ata_dev_absent()Tejun Heo1-0/+10
For the time being we cannot use ata_dev_present() as it was renamed to ata_dev_enabled() but we still need presence test. Implement negation of the test. Conveniently, the negated result is needed in more places. This is suggested by Jeff Garzik. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-04-01Merge branch 'upstream'Jeff Garzik1-3/+13
2006-04-01[PATCH] libata: implement ata_dev_enabled and disabled()Tejun Heo1-3/+13
This patch renames ata_dev_present() to ata_dev_enabled() and adds ata_dev_disabled(). This is to discern the state where a device is present but disabled from not-present state. This disctinction is necessary when configuring transfer mode because device selection timing must not be violated even if a device fails to configure. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-30Merge branch 'upstream'Jeff Garzik1-0/+9
Conflicts: drivers/scsi/sata_mv.c
2006-03-30Merge branch 'upstream'Jeff Garzik1-4/+19
2006-03-30[PATCH] libata: Simplex and other mode filtering logicAlan Cox1-0/+4
Add a field to the host_set called 'flags' (was host_set_flags changed to suit Jeff) Add a simplex_claimed field so we can remember who owns the DMA channel Add a ->mode_filter() hook to allow drivers to filter modes Add docs for mode_filter and set_mode Filter according to simplex state Filter cable in core This provides the needed framework to support all the mode rules found in the PATA world. The simplex filter deals with 'to spec' simplex DMA systems found in older chips. The cable filter avoids duplicating the same rules in each chip driver with PATA. Finally the mode filter is neccessary because drive/chip combinations have errata that forbid certain modes with some drives or types of ATA object. Drive speed setup remains per channel for now and the filters now use the framework Tejun put into place which cleans them up a lot from the older libata-pata patches. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-30[PATCH] libata: Add ->set_mode hook for odd driversAlan Cox1-0/+1
Some hardware doesn't want the usual mode setup logic running. This allows the hardware driver to replace it for special cases in the least invasive way possible. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-30[PATCH] libata: BMDMA handling updatesAlan Cox1-0/+4
This is the minimal patch set to enable the current code to be used with a controller following SFF (ie any PATA and early SATA controllers) safely without crashes if there is no BMDMA area or if BMDMA is not assigned by the BIOS for some reason. Simplex status is recorded but not acted upon in this change, this isn't a problem with the current drivers as none of them are for simplex hardware. A following diff will deal with that. The flags in the probe structure remain ->host_set_flags although Jeff asked me to rename them, simply because the rename would break the usual Linux rules that old code should break when there are changes. not compile and run and then blow up/eat your computer/etc. Renaming this later is a trivial exercise once a better name is chosen. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-30[PATCH] libata-dev: Cleanup unused enums/functionsAlbert Lee1-9/+0
Cleanup the following unused functions: - ata_pio_poll() - ata_pio_complete() - ata_pio_first_block() - ata_pio_block() - ata_pio_error() ap->pio_task_timeout and other enums. Signed-off-by: Albert Lee <albertcc@tw.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-24Merge branch 'upstream'Jeff Garzik1-3/+10
Conflicts: drivers/scsi/libata-core.c
2006-03-24[PATCH] libata: kill E.D.D.Tejun Heo1-1/+0
E.D.D. has no user in-tree and mostly useless. Kill it. For possible out-of-tree users, add a nice warning message and error handling if LLDD doesn't report any useable reset mechanism (and thus tries to use E.D.D.). Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-24[PATCH] libata: Remove dependence on host_set->dev for SASBrian King1-0/+1
Remove some of the dependence on the host_set struct in preparation for supporting SAS HBAs. Adds a struct device pointer to the ata_port struct. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-24[PATCH] libata: add ata_dev_pair helperAlan Cox1-0/+2
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-24[PATCH] Make libata not powerdown drivers on PM_EVENT_FREEZE.Nigel Cunningham1-2/+2
At the moment libata doesn't pass pm_message_t down ata_device_suspend. This causes drives to be powered down when we just want a freeze, causing unnecessary wear and tear. This patch gets pm_message_t passed down so that it can be used to determine whether to power down the drive. Signed-off-by: Nigel Cunningham <nigel@suspend2.net> drivers/scsi/libata-core.c | 5 +++-- drivers/scsi/libata-scsi.c | 4 ++-- drivers/scsi/scsi_sysfs.c | 2 +- include/linux/libata.h | 4 ++-- include/scsi/scsi_host.h | 2 +- 5 files changed, 9 insertions(+), 8 deletions(-) Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-24[PATCH] libata: add per-dev pio/mwdma/udma_maskTejun Heo1-0/+5
Add per-dev pio/mwdma/udma_mask. All transfer mode limits used to be applied to ap->*_mask which unnecessarily restricted other devices sharing the port. This change will also benefit later EH speed down and hotplug. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-24Merge branch 'upstream'Jeff Garzik1-2/+3
Conflicts: drivers/scsi/sata_vsc.c
2006-03-23Merge branch 'master'Jeff Garzik1-1/+0
2006-03-22[PATCH] libata: increase LBA48 max sectors to 65535Tejun Heo1-0/+1
max_hw_sectors/max_sectors separation patch made into the tree, increase max_sectors to its hardware limit. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-03-22[libata] add prototypes for helpersJeff Garzik1-1/+2
Add prototypes for stuff recently added by Alan.
2006-03-22[PATCH] libata: Add some dummy noop functionsBrian King1-0/+1
Add some dummy noop functions for use by libata clients that do not need to do anything. Future SAS patches will utilize these functions. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-21[SCSI] libata: implement minimal transport template for ->eh_timed_outTejun Heo1-1/+0
SCSI midlayer has moved hostt->eh_timed_out to transport template. As libata doesn't need full-blown transport support yet, implement minimal transport for libata. No transport class or whatsoever, just empty transport template with ->eh_timed_out hook. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-03-12Merge branch 'upstream'Jeff Garzik1-10/+26
2006-03-12[PATCH] libata: improve xfer mask constants and update ata_mode_string()Tejun Heo1-4/+12
Add ATA_BITS_*, ATA_MASK_* macros and reorder xfer_mask fields such that higher transfer mode is placed at higher order bit. As thie reordering breaks ata_mode_string(), this patch also rewrites ata_mode_string(). Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-12[PATCH] libata: rename ATA_FLAG_FLUSH_PIO_TASK to ATA_FLAG_FLUSH_PORT_TASKTejun Heo1-1/+1
Rename ATA_FLAG_FLUSH_PIO_TASK to ATA_FLAG_FLUSH_PORT_TASK. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-12[PATCH] libata: kill unused pio_task and packet_taskTejun Heo1-3/+0
Kill unused pio_task and packet_task. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-12[PATCH] libata: implement port_taskTejun Heo1-0/+4
Implement port_task. LLDD's can schedule a function to be executed with context after specified delay. libata core takes care of synchronization against EH. This is generalized form of pio_task and packet_task which are tied to PIO hsm implementation. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-05[PATCH] libata: implement ata_dev_revalidate()Tejun Heo1-0/+2
ata_dev_revalidate() re-reads IDENTIFY PAGE of the given device and makes sure it's the same device as the configured one. Once it's verified that it's the same device, @dev is configured according to newly read IDENTIFY PAGE. Note that revalidation currently doesn't invoke transfer mode reconfiguration. Criteria for 'same device' * same class (of course) * same model string * same serial string * if ATA, same n_sectors (to catch geometry parameter changes) Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-04[PATCH] libata: fold ata_dev_config() into ata_dev_configure()Tejun Heo1-1/+0
ata_dev_config() needs to be done everytime a device is configured. Fold it into ata_dev_configure(). Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-04[PATCH] libata: convert dev->id to pointerTejun Heo1-1/+1
Convert dev->id from array to pointer. This is to accomodate revalidation. During revalidation, both old and new IDENTIFY pages should be accessible and single ->id array doesn't cut it. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-03[PATCH] libata: seperate out ata_class_present()Tejun Heo1-2/+6
Seperate out ata_class_present() from ata_dev_present(). This is useful because new reset mechanism deals with classes[] directly. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-02-21Merge branch 'upstream'Jeff Garzik1-2/+14
2006-02-21Merge branch 'upstream-fixes'Jeff Garzik1-2/+14
2006-02-21[PATCH] libata: fix qc->n_elem == 0 case handling in ata_qc_next_sgTejun Heo1-2/+14
This patch makes ata_for_each_sg() start with pad_sgent when qc->n_elem is zero. Previously, ata_for_each_sg() unconditionally started with qc->__sg, handling the first sg to fill_sg() routines even when the entry was invalid. And while at it, unwind ?: in ata_qc_next_sg() into if statement. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-20Merge branch 'upstream'Jeff Garzik1-4/+4
2006-02-20[PATCH] libata: rename ata_dev_id_[c_]string()Tejun Heo1-4/+4
This patch renames ata_dev_id_[c_]string() to ata_id_[c_]string(). All other functions which read data from ATA ID data start with ata_id and those two function names were getting too long. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-13Merge branch 'upstream'Jeff Garzik1-4/+6
2006-02-12[PATCH] libata: add per-device max_sectorsTejun Heo1-2/+2
If a low level driver wants to control max_sectors, it had to adjust ap->host->max_sectors and set ATA_DFLAG_LOCK_SECTORS to tell ata_scsi_slave_config not to override the limit. This is not only cumbersome but also incorrect for hosts which support more than one devices per port. This patch adds per-device ->max_sectors. If the field is unset (zero), libata core layer will adjust ->max_sectors according to default rules. If the field is set, libata honors the setting. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-12[PATCH] libata: move cdb_len for host to deviceTejun Heo1-1/+1
cdb_len is per-device property. Sharing cdb_len on ap results in inaccurate configuration on revalidation and hotplugging. This patch makes cdb_len per-device. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-12[PATCH] libata: implement ata_dev_id_c_string()Tejun Heo1-0/+2
ata_dev_id_c_string() reads ATA string from the specified offset of the given IDENTIFY PAGE and puts it in the specified buffer in trimmed and NULL-terminated form. The caller must supply a buffer which is one byte larger than the maximum size of the target ID string. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-12Merge branch 'upstream'Jeff Garzik1-11/+19
2006-02-12[PATCH] libata: kill assert() macroTejun Heo1-10/+0
libata assert() now has no user left. Kill it. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-12[PATCH] libata: inline ata_qc_complete()Tejun Heo1-1/+19
This patch inlines ata_qc_complete() and uninlines __ata_qc_complete() as suggested by Jeff Garzik. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-10Merge branch 'upstream'Jeff Garzik1-0/+2
2006-02-10[PATCH] libata: implement ata_scsi_timed_out()Tejun Heo1-0/+1
Implement ata_scsi_timed_out(), to be used as scsi_host_template->eh_timed_out callback for all libata drivers. Without this function, the following race exists. If a qc completes after SCSI timer expires but before libata EH kicks in, the qc gets completed but the scsicmd still gets passed to libata EH resulting in ->eng_timeout invocation with NULL qc, which none is handling properly. This patch makes sure that scmd and qc share the same lifetime. Original idea from Jeff Garzik <jgarzik@pobox.com>. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-10[PATCH] libata: add ATA_QCFLAG_EH_SCHEDULEDTejun Heo1-0/+1
Add ATA_QCFLAG_EH_SCHEDULED. If this flag is set, the qc is owned by EH and normal completion path is not allowed to finish it. This patch doesn't actually use this flag. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-09Merge branch 'upstream'Jeff Garzik1-0/+17
2006-02-09[PATCH] libata: implement ata_std_probeinit()Tejun Heo1-0/+1
This patch implements the off-the-shelf probeinit component operation. Currently, all it does is waking up the PHY if it's a SATA port. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-16 23:35:35 +0300