- 24 3月, 2006 4 次提交
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由 Tejun Heo 提交于
libata core is being changed to disallow port/device disable on lower layers. However, some LLDDs (sata_mv) directly disable port on command failure. This patch makes ata_exec_internal() check whether a port got disabled after an internal command. If it is, AC_ERR_SYSTEM is added to err_mask and the port gets re-enabled. As internal command failure results in device disable for drivers which don't implement newer reset/EH callbacks, this change results in no behavior change for single device per port controllers. For slave-possible LLDDs which disable port on command failure, (1) such drivers don't exist currently, (2) issuing command to the other device of once-disabled port shouldn't result in catastrophe even if such driver exists. So, this should be enough as a temporary measure. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
Now that each ata_device has xfer masks, per-dev limits can be made per-dev instead of per-port. Make per-dev limits per-dev. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
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: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
Implement ata_unpack_xfermask(). Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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- 23 3月, 2006 5 次提交
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由 Jeff Garzik 提交于
No code changes, just moving code between files.
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由 Tejun Heo 提交于
As libata now can do PIO, don't ignore PIO-only devices. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Alan Cox 提交于
Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Alan Cox 提交于
Not much to say here except that some drives have fixed and bad firmware Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Alan Cox 提交于
The current code follows the spec but uses an overlong delay. This would be great if the hardware did. Several vendors however forget the D7 pulldown. Fortunately 0xFF isnt a sane reset state so we can use it to skip detection as is done in drivers/ide. (ie this is a tested solution over a long time) Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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- 22 3月, 2006 7 次提交
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由 Jeff Garzik 提交于
Alan noted: "bmdma may be zero but the bmdma_irq_clear function gets called even in this case during pure PIO operation. Check we have a bmdma before we use it." I fixed this by adding a check for zero. While was I there, I fixed the non-standard indentation of the small function's code. Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Alan Cox 提交于
Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Alan Cox 提交于
Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Brian King 提交于
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: NBrian King <brking@us.ibm.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Albert Lee 提交于
Remove the ATA_PROT_PIO_MULT protocol. Signed-off-by: NAlbert Lee <albertcc@tw.ibm.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Albert Lee 提交于
Add ata_port_flush_task() to ata_exec_internal(). Signed-off-by: NAlbert Lee <albertcc@tw.ibm.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
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: NTejun Heo <htejun@gmail.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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- 17 3月, 2006 2 次提交
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由 Tejun Heo 提交于
Move IDENTIFY info printing from ata_dev_read_id() to ata_dev_configure() and print only if @print_info is non-zero. This kills duplicate IDENTIFY info printing during probing. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
dev->id is used many times in ata_dev_configure(). Use local variable id instead for shorter notation. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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- 13 3月, 2006 2 次提交
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由 Tejun Heo 提交于
Check bit 2 of Word 53 for Word 88 validity before using Word 88 to determine UDMA mask. Note that the original xfer mask implementation using ata_get_mode_mask() didn't consider bit 2 of Word 53. This patch introduces different (correct) behavior. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
ata_bus_probe() didn't set classes[] properly for port disabled case of ->phy_reset() compatibility path. This patch moves classes[] initialization and normalization out of ->probe_reset block such that it applies to both ->probe_reset and ->phy_reset paths. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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- 12 3月, 2006 12 次提交
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由 Jeff Garzik 提交于
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由 Tejun Heo 提交于
ata_bus_probe() didn't initialize classes[] properly with ATA_DEV_UNKNOWN. As ->probe_reset() is allowed to leave @classes alone when no device is present, this results in garbage class values. ATM, the only affected driver is ata_piix. Signed-off-by: NTejun Heo <htejun@gmail.com> Cc: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
Preceding xfer_mask changes make the following functions unused. ata_pio_modes(), base_from_shift(), ata_pr_blacklisted(), fgb() Kill them. Also, as xfer_mode_str[] is now only used by ata_mode_string(), move it into the function. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
Use xfer_mask helpers to determine transfer mode. This rewrite also makes transfer mode determination done before any actual configuration. This patch doesn't result in any functional changes. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
Rewrite hardcoded xfer_mode string determination in ata_dev_set_mode() using xfer_mask helpers. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
Replace quick & dirty max transfer mode determination in ata_dev_configure() with ata_id_xfermask(). While at it, rename xfer_modes variable to xfer_mask and make it unsigned int for consistency. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
Add ata_pack_xfermask(), ata_xfer_mask2mode(), ata_xfer_mode2mask(), ata_xfer_mode2shift() and ata_id_xfermask(). These functions will be used by following patches to simplify xfer_mask handling. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
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: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
Rename ATA_FLAG_FLUSH_PIO_TASK to ATA_FLAG_FLUSH_PORT_TASK. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
Kill unused pio_task and packet_task. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
Make pio_task and atapi_packet_task use port_task. atapi_packet_task() is moved upward such that it's right after ata_pio_task(). This position is more natural and makes adding prototype for ata_qc_issue_prot() unnecessary. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
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: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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- 06 3月, 2006 4 次提交
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由 Tejun Heo 提交于
Revalidate device after transfer mode configuration. This also makes dev->id up-to-date. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
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: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
Add @print_info argument to ata_dev_configure(). Details of configured device is printed only when @pinfo_info is non-zero. This patch also reorganizes device info printing for LBA case to simplify code (necessary as @print_info adds extra nesting around it). Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
In ata_dev_configure(), reinitialize parameters before configuring. This change is for revalidation and hotplug. As ata_dev_configure() can be entered multiple times, parameters need to be reinitialized. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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- 04 3月, 2006 4 次提交
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由 Tejun Heo 提交于
Now that reset and configure are converted such that they don't modify or disable libata core data structures, reorganize ata_bus_probe() to reflect this change. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
ata_dev_config() needs to be done everytime a device is configured. Fold it into ata_dev_configure(). Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
Separate out ata_dev_configure() from ata_dev_identify() such that ata_dev_configure() only configures @dev according to passed in @id. The function now does not disable device on failure, it just returns appropirate error code. As this change leaves ata_dev_identify() with only reading ID, calling configure and disabling devices according to the results, this patch also kills ata_dev_identify() and inlines the logic into ata_bus_probe(). Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
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: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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