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* libata: Add support for SCT Write SameShaun Tancheff2016-08-251-0/+43
| | | | | | | | | | | | | | | | SATA drives may support write same via SCT. This is useful for setting the drive contents to a specific pattern (0's). Translate a SCSI WRITE SAME 16 command to be either a DSM TRIM command or an SCT Write Same command. Based on the UNMAP flag: - When set translate to DSM TRIM - When not set translate to SCT Write Same Signed-off-by: Shaun Tancheff <shaun.tancheff@seagate.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Acked-by: Tejun Heo <tj@kernel.org>
* libata: Safely overwrite attached page in WRITE SAME xlatShaun Tancheff2016-08-251-26/+0Star
| | | | | | | | | Safely overwriting the attached page to ATA format from the SCSI formatted variant. Signed-off-by: Shaun Tancheff <shaun.tancheff@seagate.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Acked-by: Tejun Heo <tj@kernel.org>
* ata: define ATA_PROT_* in terms of ATA_PROT_FLAG_*Christoph Hellwig2016-07-191-11/+17
| | | | | | | | This avoid the need to always translate between the two in ata_prot_flags and generally cleans up the taskfile protocol usage. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
* ata: make lba_{28,48}_ok() use ATA_MAX_SECTORS{,_LBA48}Tom Yan2016-07-191-3/+3
| | | | | | | | | | | | Since we set ATA_MAX_SECTORS_LBA48 to 65535 to avoid the corner case in some drives that commands with "count" set to 0000h (which reprsents 65536) does not work as expected, lba_48_ok(), which is used for number-of-blocks checking when libata pack commands, should use the same limit as well. In fact, there is no reason for the two functions not to use the macros anyway. Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* ata: Handle ATA NCQ NO-DATA commands correctlyHannes Reinecke2016-07-151-0/+1
| | | | | | | | | | Add a new taskfile protocol ATA_PROT_NCQ_NODATA to handle ATA NCQ NO-DATA commands correctly. And fixup ata_scsi_zbc_out_xlat() to use it. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
* libata-scsi: avoid repeated calculation of number of TRIM rangesTom Yan2016-07-121-2/+3
| | | | | | | | | | | | Currently libata statically allows only 1-block (512-byte) payload for each TRIM command. Each payload can carry 64 TRIM ranges since each range requires 8 bytes. It is silly to keep doing the calculation (512 / 8) in different places. Hence, define the new ATA_MAX_TRIM_RNUM for the result. Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* libata-scsi: fix SET FEATURES "filtering" for ata_msense_caching()Tom Yan2016-07-121-0/+3
| | | | | | | | | | Without this fix, the DRA bit of the caching mode page would not be updated when the read look-ahead feature is toggled (e.g. with `smartctl --set`), but will only be until, for example, the write cache feature is touched. Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* Merge branch 'for-4.7-zac' of ↵Linus Torvalds2016-05-241-1/+71
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata ZAC support from Tejun Heo: "This contains Zone ATA Command support for Shingled Magnetic Recording devices. In addition to sending the new commands down to the device, as ZAC commands depend on getting a lot of responses from the device, piping up responses is beefed up too. However, it doesn't involve changes to libata core mechanism or its interaction with upper layers, so I'm not expecting too many fallouts. Kudos to Hannes for driving SMR support" * 'for-4.7-zac' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (28 commits) libata: support host-aware and host-managed ZAC devices libata: support device-managed ZAC devices libata: NCQ encapsulation for ZAC MANAGEMENT OUT libata: Implement ZBC OUT translation libata: implement ZBC IN translation libata: fixup ZAC device disabling libata-scsi: Generate sense code for disabled devices libata-trace: decode subcommands libata: Check log page directory before accessing pages libata: Add command definitions for NCQ Encapsulation for READ LOG DMA EXT libata: Separate out ata_dev_config_ncq_send_recv() libata/libsas: Define ATA_CMD_NCQ_NON_DATA libsas: enable FPDMA SEND/RECEIVE libata: do not attempt to retrieve sense code twice libata-scsi: Set information sense field for invalid parameter libata-scsi: set bit pointer for sense code information libata-scsi: Set field pointer in sense code scsi: add scsi_set_sense_field_pointer() libata: Implement control mode page to select sense format libata-scsi: generate correct ATA pass-through sense ...
| * libata: support host-aware and host-managed ZAC devicesHannes Reinecke2016-05-091-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Byte 69 bits 0:1 in the IDENTIFY DEVICE data indicate a host-aware ZAC device. Host-managed ZAC devices have their own individual signature, and to not set the bits in the IDENTIFY DEVICE data. And whenever we detect a ZAC-compatible device we should be displaying the zoned block characteristics VPD page. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
| * libata: support device-managed ZAC devicesHannes Reinecke2016-05-091-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | Device-managed ZAC devices just set the zoned capabilities field in INQUIRY byte 69 (cf ACS-4). This corresponds to the 'zoned' field in the block device characteristics VPD page. As this is only defined in SPC-5/SBC-4 we also need to update the supported SCSI version descriptor. Reviewed-by: Shaun Tancheff <shaun.tancheff@seagate.com> Tested-by: Shaun Tancheff <shaun.tancheff@seagate.com> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
| * libata: NCQ encapsulation for ZAC MANAGEMENT OUTHannes Reinecke2016-05-091-0/+7
| | | | | | | | | | | | | | | | | | Add NCQ encapsulation for ZAC MANAGEMENT OUT and evaluate NCQ Non-Data log pages to figure out if NCQ encapsulation is supported. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * libata: Implement ZBC OUT translationHannes Reinecke2016-05-091-0/+7
| | | | | | | | | | | | | | | | ZAC drives implement a 'ZAC Management Out' command template, which maps onto the ZBC OUT command. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
| * libata: implement ZBC IN translationHannes Reinecke2016-05-091-1/+9
| | | | | | | | | | | | | | | | ZAC drives implement a 'ZAC Management In' command template, which maps onto the ZBC IN command. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
| * libata-trace: decode subcommandsHannes Reinecke2016-05-091-0/+17
| | | | | | | | | | | | | | | | Some commands like FPDMA RECEIVE or NCQ NON DATA can encapsulate other commands to NCQ transport. So decode the subcmds, too. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * libata: Check log page directory before accessing pagesHannes Reinecke2016-05-091-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | When reading the NCQ Send/Recv log it might actually not supported, thereby causing irritating messages 'READ LOG DMA EXT failed'. Instead we should be reading the log directory first to figure out if the log is actually supported before trying to access it. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * libata: Add command definitions for NCQ Encapsulation for READ LOG DMA EXTHannes Reinecke2016-05-091-0/+5
| | | | | | | | | | | | | | ACS-4 defines an NCQ encapsulation for READ LOG DMA EXT. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * libata/libsas: Define ATA_CMD_NCQ_NON_DATAHannes Reinecke2016-05-091-0/+1
| | | | | | | | | | | | | | | | Define the NCQ NON DATA command and update libsas to handle it correctly. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
| * libata: Implement support for sense data reportingHannes Reinecke2016-04-041-0/+16
| | | | | | | | | | | | | | | | | | | | ACS-4 defines a sense data reporting feature set. This patch implements support for it. tj: Cosmetic formatting updates. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
| * libata: Implement NCQ autosenseHannes Reinecke2016-04-041-0/+2
| | | | | | | | | | | | | | | | Some newer devices support NCQ autosense (cf ACS-4), so we should be using it to retrieve the sense code and speed up recovery. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
* | libata-core: Allow longer timeout for drive spinup from PUISDamien Le Moal2016-04-041-1/+2
|/ | | | | | | | | | | | | | | | When spinning up a drive from powered on standby mode (PUIS), SETFEATURES_SPINUP is executed with the default timeout used for any SETFEATURES subcommand, that is 5+10 seconds. The total 15s is too short for some drives to complete spinup (e.g. drives with a large indirection table stored on media), resulting in ata_dev_read_id to fail twice on the execution of SETFEATURES_SPINUP. For this feature, allow a larger default timeout of 30 seconds. However, in the same spirit as with the timeout of other feature subcommands, do not ignore ata_probe_timeout if it is set). Signed-off-by: Damien Le Moal <damien.lemoal@hgst.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* libata: fix HDIO_GET_32BIT ioctlArnd Bergmann2016-02-111-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As reported by Soohoon Lee, the HDIO_GET_32BIT ioctl does not work correctly in compat mode with libata. I have investigated the issue further and found multiple problems that all appeared with the same commit that originally introduced HDIO_GET_32BIT handling in libata back in linux-2.6.8 and presumably also linux-2.4, as the code uses "copy_to_user(arg, &val, 1)" to copy a 'long' variable containing either 0 or 1 to user space. The problems with this are: * On big-endian machines, this will always write a zero because it stores the wrong byte into user space. * In compat mode, the upper three bytes of the variable are updated by the compat_hdio_ioctl() function, but they now contain uninitialized stack data. * The hdparm tool calling this ioctl uses a 'static long' variable to store the result. This means at least the upper bytes are initialized to zero, but calling another ioctl like HDIO_GET_MULTCOUNT would fill them with data that remains stale when the low byte is overwritten. Fortunately libata doesn't implement any of the affected ioctl commands, so this would only happen when we query both an IDE and an ATA device in the same command such as "hdparm -N -c /dev/hda /dev/sda" * The libata code for unknown reasons started using ATA_IOC_GET_IO32 and ATA_IOC_SET_IO32 as aliases for HDIO_GET_32BIT and HDIO_SET_32BIT, while the ioctl commands that were added later use the normal HDIO_* names. This is harmless but rather confusing. This addresses all four issues by changing the code to use put_user() on an 'unsigned long' variable in HDIO_GET_32BIT, like the IDE subsystem does, and by clarifying the names of the ioctl commands. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reported-by: Soohoon Lee <Soohoon.Lee@f5.com> Tested-by: Soohoon Lee <Soohoon.Lee@f5.com> Cc: stable@vger.kernel.org Signed-off-by: Tejun Heo <tj@kernel.org>
* Revert "libata: Implement NCQ autosense"Tejun Heo2015-08-031-2/+0Star
| | | | | | | | | | | | This reverts commit 42b966fbf35da9c87f08d98f9b8978edf9e717cf. As implemented, ACS-4 sense reporting for ATA devices bypasses error diagnosis and handling in libata degrading EH behavior significantly. Revert the related changes for now. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Hannes Reinecke <hare@suse.de> Cc: stable@vger.kernel.org #v4.1+
* Revert "libata: Implement support for sense data reporting"Tejun Heo2015-08-031-16/+0Star
| | | | | | | | | | | | | | | This reverts commit fe7173c206de63fc28475ee6ae42ff95c05692de. As implemented, ACS-4 sense reporting for ATA devices bypasses error diagnosis and handling in libata degrading EH behavior significantly. Revert the related changes for now. ATA_ID_COMMAND_SET_3/4 constants are not reverted as they're used by later changes. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Hannes Reinecke <hare@suse.de> Cc: stable@vger.kernel.org #v4.1+
* libata: add ATA_HORKAGE_MAX_SEC_1024 to revert back to previous max_sectors ↵David Milburn2015-07-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | limit Since no longer limiting max_sectors to BLK_DEF_MAX_SECTORS (commit 34b48db66e08), data corruption may occur on ST380013AS drive configured on 82801JI (ICH10 Family) SATA controller. This patch will allow the driver to limit max_sectors as before # cat /sys/block/sdb/queue/max_sectors_kb 512 I was able to double the max_sectors_kb value up to 16384 on linux-4.2.0-rc2 before seeing corruption, but seems safer to use previous limit. Without this patch max_sectors_kb will be 32767. tj: Minor comment update. Reported-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: David Milburn <dmilburn@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org # v3.19 and later Fixes: 34b48db66e08 ("block: remove artifical max_hw_sectors cap")
* libata: READ LOG DMA EXT support can be in either page 119 or 120Martin K. Petersen2015-05-051-1/+11
| | | | | | | | | Support for the READ/WRITE LOG DMA EXT commands can be signaled either in page 119 or page 120. We should check both pages. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
* libata: Implement support for sense data reportingHannes Reinecke2015-03-271-0/+18
| | | | | | | | ACS-4 defines a sense data reporting feature set. This patch implements support for it. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
* libata: Implement NCQ autosenseHannes Reinecke2015-03-271-0/+2
| | | | | | | | Some newer devices support NCQ autosense (cf ACS-4), so we should be using it to retrieve the sense code and speed up recovery. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
* ide,ata: Rename ATA_IDX to ATA_SENSEHannes Reinecke2015-03-271-1/+1
| | | | | | | ATA-8 defines bit 1 as 'ATA_SENSE', not 'ATA_IDX'. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
* libata: use READ_LOG_DMA_EXTHannes Reinecke2015-03-271-0/+7
| | | | | | | | If READ_LOG_DMA_EXT is supported we should try to use it for reading the log pages. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
* libata: s/ata_id_removeable()/ata_id_removable()/Nicholas Krause2014-12-251-1/+1
| | | | | | | | | Changes the spelling typos of removeable to removable where ata_id_removeable is defined in ata.h and called in libata-scsi.c respectively. Signed-off-by: Nicholas Krause <xerofoify@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* libata: Add some missing command descriptionsRobert Hancock2013-10-271-0/+7
| | | | | | | | | Add some missing command enumerations from the ATA-8 ACS-3 spec into include/linux/ata.h, and add the corresponding human-readable command descriptions in libata-eh.c. Signed-off-by: Robert Hancock <hancockrwd@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* libata: Add support for SEND/RECEIVE FPDMA QUEUEDMarc Carino2013-08-251-0/+21
| | | | | | | | | | | Add support for the following ATA opcodes, which are present in SATA 3.1 and T13 ATA ACS-3: SEND FPDMA QUEUED RECEIVE FPDMA QUEUED Signed-off-by: Marc Carino <marc.ceeeee@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* libata: move 'struct ata_taskfile' and friends from ata.h to libata.hSergei Shtylyov2013-07-161-102/+0Star
| | | | | | | | | | | | | Move 'struct ata_taskfile', ata_prot_flags() and their friends from <linux/ata.h> to <linux/libata.h>. They were misplaced from the beginning, as <linux/ata.h> should cover ATA/ATAPI and related standards only -- to which the aforementioned structure and function have only remote relation. I would have moved 'enum ata_tf_protocols' closely related to 'struct ata_taskfile' but it unfortunately gets used by 'drivers/ide/ide-ioctls.c'... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* libata: Use integer return value for atapi_command_packet_setShan Hai2013-04-041-1/+1
| | | | | | | | | | | | | | | The function returns type of ATAPI drives so it should return integer value. The commit 4dce8ba94c7 (libata: Use 'bool' return value for ata_id_XXX) since v2.6.39 changed the type of return value from int to bool, the change would cause all of the ATAPI class drives to be treated as TYPE_TAPE and the max_sectors of the drives to be set to 65535 because of the commit f8d8e5799b7(libata: increase 128 KB / cmd limit for ATAPI tape drives), for the function would return true for all ATAPI class drives and the TYPE_TAPE is defined as 0x01. Cc: stable@vger.kernel.org Signed-off-by: Shan Hai <shan.hai@windriver.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* [libata] replace sata_settings with devslp_timingShane Huang2013-01-141-3/+5
| | | | | | | | | | | | | | | | | | | | | NCQ capability was used to check availability of SATA Settings page from Identify Device Data Log, which contains DevSlp timing variables. It does not work on some HDDs and leads to error messages. IDENTIFY word 78 bit 5(Hardware Feature Control) can't work either because it is only the sufficient condition of Identify Device data log, not the necessary condition. This patch replaced ata_device->sata_settings with ->devslp_timing to only save DevSlp timing variables(8 bytes), instead of the whole SATA Settings page(512 bytes). Addresses https://bugzilla.kernel.org/show_bug.cgi?id=51881 Reported-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Shane Huang <shane.huang@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* ahci: implement aggressive SATA device sleep supportShane Huang2012-09-131-0/+9
| | | | | | | | | | | | | | | | | | | | | | Device Sleep is a feature as described in AHCI 1.3.1 Technical Proposal. This feature enables an HBA and SATA storage device to enter the DevSleep interface state, enabling lower power SATA-based systems. Aggressive Device Sleep enables the HBA to assert the DEVSLP signal as soon as there are no commands outstanding to the device and the port specific Device Sleep idle timer has expired. This enables autonomous entry into the DevSleep interface state without waiting for software in power sensitive systems. This patch enables Aggressive Device Sleep only if both host controller and device support it. Tested on AMD reference board together with Device Sleep supported device sample. Signed-off-by: Shane Huang <shane.huang@amd.com> Reviewed-by: Aaron Lu <aaron.lwe@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* ata: define enum constants for IDENTIFY DEVICEShane Huang2012-09-131-8/+13
| | | | | | | Define enumeration constants for IDENTIFY DEVICE words. Signed-off-by: Shane Huang <shane.huang@amd.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: detect Device Attention supportLin Ming2012-06-291-0/+1
| | | | | | | | | Add a new flag ATA_DFLAG_DA to indicate that device supports "Device Attention". Acked-by: Aaron Lu <aaron.lu@amd.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: Use 'bool' return value for ata_id_XXXHannes Reinecke2011-03-151-81/+75Star
| | | | | | | | Most ata_id_XXX inlines are simple tests, so we should set the return value to 'bool' here. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* libata: Include WWN ID in inquiry VPD emulationHannes Reinecke2011-03-141-0/+7
| | | | | | | | | As per SAT-3 the WWN ID should be included in the VPD page 0x83 (device identification) emulation. Signed-off-by: Hannes Reinecke <hare@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [libata] support for > 512 byte sectors (e.g. 4K Native)Grant Grundler2010-10-221-6/+40
| | | | | | | | | | | | | | | | | | | | | | | This change enables my x86 machine to recognize and talk to a "Native 4K" SATA device. When I started working on this, I didn't know Matthew Wilcox had posted a similar patch 2 years ago: http://git.kernel.org/?p=linux/kernel/git/willy/ata.git;a=shortlog;h=refs/heads/ata-large-sectors Gwendal Grignou pointed me at the the above code and small portions of this patch include Matthew's work. That's why Mathew is first on the "Signed-off-by:". I've NOT included his use of a bitmap to determine 512 vs Native for ATA command block size - just used a simple table. And bugs are almost certainly mine. Lastly, the patch has been tested with a native 4K 'Engineering Sample' drive provided by Hitachi GST. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Grant Grundler <grundler@google.com> Reviewed-by: Gwendal Grignou <gwendal@google.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata-sff: prd is BMDMA specificTejun Heo2010-05-191-1/+1
| | | | | | | | struct ata_prd and ap->prd are BMDMA specific. Add bmdma_ prefix to them and move them inside CONFIG_ATA_SFF. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: Fix accesses at LBA28 boundary (old bug, but nasty) (v2)Mark Lord2010-04-081-2/+2
| | | | | | | | | | | | | | Most drives from Seagate, Hitachi, and possibly other brands, do not allow LBA28 access to sector number 0x0fffffff (2^28 - 1). So instead use LBA48 for such accesses. This bug could bite a lot of systems, especially when the user has taken care to align partitions to 4KB boundaries. On misaligned systems, it is less likely to be encountered, since a 4KB read would end at 0x10000000 rather than at 0x0fffffff. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* ata: Detect Delkin Devices compact flashBen Gardner2010-03-011-1/+2
| | | | | | | | | | | | | | | | | | I have a Delkin Devices compact flash card that isn't being recognized using the SATA/PATA drivers. The card is recognized and works with the deprecated ATA drivers. The error I am seeing is: ata1.00: failed to IDENTIFY (device reports invalid type, err_mask=0x0) I tracked it down to ata_id_is_cfa() in include/linux/ata.h. The Delkin card has id[0] set to 0x844a and id[83] set to 0. This isn't what the kernel expects and is probably incorrect. The simplest work-around is to add a check for 0x844a to ata_id_is_cfa(). Signed-off-by: Ben Gardner <gardner.ben@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: fix ata_id_logical_per_physical_sectorsChristoph Hellwig2010-02-041-2/+2
| | | | | | | | | | | | | The value we get from the low byte of the ATA_ID_SECTOR_SIZE word is not not a plain multiple, but the log of it, so fix the helper to give the correct answer. Without this we'll get an incorrect minimal I/O size in the block limits VPD page for 4k sector drives. Also change the return value of ata_id_logical_per_physical_sectors to u16 for the unlikely case of very large logical sectors. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: Clarify ata_set_lba_range_entries functionMartin K. Petersen2009-12-041-10/+10
| | | | | | | | | ata_set_lba_range_entries used the variable max for two different things which was confusing. Make the function take a buffer size in bytes as argument and return the used buffer size upon completion. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: Report zeroed read after TRIM and max discard sizeMartin K. Petersen2009-12-041-0/+11
| | | | | | | | | | | | Our current TRIM payload is a single sector that can accommodate 64 * 65535 blocks being unmapped. Report this value in the Block Limits Maximum Unmap LBA count field. If a storage device supports TRIM and the DRAT and RZAT bits are set, report TPRZ=1 in Read Capacity(16). Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: add translation for SCSI WRITE SAME (aka TRIM support)Christoph Hellwig2009-12-031-0/+13
| | | | | | | | | | | | | | Add support for the ATA TRIM command in libata. We translate a WRITE SAME 16 command with the unmap bit set into an ATA TRIM command and export enough information in READ CAPACITY 16 and the block limits EVPD page so that the new SCSI layer discard support will driver this for us. Note that I hardcode the WRITE_SAME_16 opcode for now as the patch to introduce the symbolic is not in 2.6.32 yet but only in the SCSI tree - as soon as it is merged we can fix it up to properly use the symbolic name. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: implement more acpi filtering optionsTejun Heo2009-10-061-0/+3
| | | | | | | | | Currently libata-acpi can only filter DIPM among SATA feature enables via _GTF. This patch adds the capability to filter out FPDMA non-zero offset, in-order guarantee and auto-activation. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: cosmetic updatesTejun Heo2009-10-061-3/+3
| | | | | | | | We're about to add more SATA_* and ATA_ACPI_FILTER_* constants. Reformat them in preparation. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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