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* [PATCH] SCSI: lockdep annotation in scsi_send_eh_cmndStefan Richter2006-09-131-1/+1
| | | | | | | | | | Fixup for lockdep enabled kernels: Annotate an on-stack completion. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] libata: ignore CFA signature while sanity-checking an ATAPI deviceTejun Heo2006-09-131-4/+9
| | | | | | | | | | | | | | | | 0x848a in ID word 0 indicates CFA device iff the ID data is obtained from IDENTIFY DEVICE. For ATAPI devices, 0x848a in ID work 0 indicates valid ATAPI device. Fix sanity check in ata_dev_read_id() such that ATAPI devices reporting 0x848a in ID word 0 is not handled as error. The problem is identified by J.A. Magallon with HL-DT-ST DVDRAM GSA-4120B. Signed-off-by: Tejun Helo <htejun@gmail.com> Cc: J.A. Magallon <jamagallon@ono.com> Acked-by: Jeff Garzik <jeff@garzik.org> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'upstream-linus' of ↵Linus Torvalds2006-09-112-4/+35
|\ | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: [PATCH] ata_piix: add map 01b for ICH7M [libata] sata_mv: errata check buglet fix
| * [PATCH] ata_piix: add map 01b for ICH7MTejun Heo2006-09-111-2/+34
| | | | | | | | | | | | | | | | | | | | | | Although the document says otherwise, some ich7m uses map 01b. This patch adds separate map DB for ICH7M and adds map entry for 01b. This was spotted on an ASUS laptop by Jonathan Dieter. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Jonathan Dieter <jdieter@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * [libata] sata_mv: errata check buglet fixAndres Salomon2006-09-111-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | Fix a buglet; the errata check below this code is assuming the value in the sstatus variable is what was pulled out of the SCR_STATUS register. However, the status checks in the timeout loop clobber everything but the first 4 bits of sstatus, so the errata checks are invalid. This patch changes it to not clobber SStatus. Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | [PATCH] Fix 2.6.18-rc6 IDE breakage, add missing ident needed for current ↵Alan Cox2006-09-111-0/+1
|/ | | | | | | | | | | | | | | | VIA boards There are two changes here. The first reverses the broken PCI_DEVICE conversion back to the old format. The second adds a missing PCI ID so you can actually boot 2.6.18 on 2 month old VIA motherboards (right now only 2.6.18-mm works). CC'd to Jeff to check the PCI ident but its a) in several distro kernels and b) in 2.6.18-mm [twice ??] Signed-off-by: Alan Cox <alan@redhat.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] lockdep: annotate idescsi_pc_intr()Ingo Molnar2006-08-271-1/+1
| | | | | | | | | | | | idescsi_pc_intr() uses local_irq_enable() in IRQ context: annotate it. (this has no effect on kernels with lockdep disabled. On kernels with lockdep enabled this means that we wont actually disable interrupts, and the warning message will go away as well.) Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge gregkh@master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Greg Kroah-Hartman2006-08-2632-888/+551
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| * [SCSI] fix scsi_send_eh_cmnd regressionMike Christie2006-08-261-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The callers of scsi_send_eh_cmnd are setting the cmnd buffer, and then scsi_send_eh_cmnd is copying that updated buffer to the old_cmnd variable. Then after the command runs, we end up copying that old_cmnd var which has the new cmnd to the scsi command buffer. When this command gets recent, all types of fun things happen like getting TUR or START_STOP commands with data and scatterlists. This patch made against scsi-rc-fixes, has the callers of scsi_send_eh_cmnd pass in the command so scsi_send_eh_cmnd can do the right thing. This should go into 2.6.18 since this fixes a regression added when we removed some of the scsi_cmnd fields and replaced them with local variables. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Update version number to 8.01.07-k1.Andrew Vasquez2006-08-261-2/+2
| | | | | | | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Properly re-enable EFT support after an ISP abort.Andrew Vasquez2006-08-261-0/+11
| | | | | | | | | | | | | | | | Software must explicitely re-enable extended firmware tracing after any ISP abort condition. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] qla2xxx: Correct PLOGI retry logic.Andrew Vasquez2006-08-261-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Original code attempts to retry PLOGIs to fcports that are FCP_TARGETs only. If the driver never performed a successful PLOGI/PRLI, the port-type would never be assigned, and the relogin logic would silently drop the request (and thus the port would not be recognized and registered). The fix is relatively straightforward, drop the FCP_TARGET-only check. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] sg: fix incorrect page problemDouglas Gilbert2006-08-261-4/+4
| | | | | | | | | | | | | | | | | | There's a problem where sg is executing a ->nopage operation on a compound page, it actually calls get_page() on the first page in the compound rather than the page which is being mapped. The fix is to select the correct page by indexing into the compound. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] lpfc 8.1.9 : Change version number to 8.1.9James Smart2006-08-191-1/+1
| | | | | | | | | | | | | | Change version number to 8.1.9 Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] lpfc 8.1.9 : Stall eh handlers if resetting while rport blockedJames Smart2006-08-191-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Stall error handler if attempting resets/aborts while an rport is blocked. This avoids device offline scenarios due to errors in the error handler. Background: Although the transport is using the scsi_timed_out functionality to restart the timeout if the rport is blocked, if the timeout has already fired before the block occurs, the eh handler still runs and can take the device offline. Ultimately, this window cannot be resolved without significant work in the error handler thread. Christoph noted the first level of these issues when he noted the poor error response handling by the error thread. We found, under heavy load and error testing, that time window from when the scsi_times_out() adds the io to the queue to when the scsi_error_handler gets around to servicing it, can be in the several seconds range. In most cases, these test conditions are highly unusual, but possible. As a result, we're stalling the error handler in this race window so that we can avoid the device_offline transitions. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] lpfc 8.1.9 : Misc Bug FixesJames Smart2006-08-195-5/+38
| | | | | | | | | | | | | | | | | | | | | | | | Misc Bug Fixes: - Cap MBX_DOWN_LINK command timeout to 60 seconds - Fix double free of ndlp object - Don't free mbox structures on error. The completion handlers expect to do so. - Clear host attention work items when going offline - Fixed discovery issues in multi-initiator environments. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * [SCSI] hptiop: backout ioctl messChristoph Hellwig2006-08-061-558/+8
| | | | | | | | | | | | | | | | | | | | The hptiop just got merged with a horrible amount of really bad ioctl code that is against the standards for new scsi drivers. This patch backs it out (and fixes a small bug where scsi_add_host is called to early). We can re-add proper APIs once we agree on them. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * Merge ../linux-2.6James Bottomley2006-08-065-37/+56
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/ia64/hp/sim/simscsi.c Stylistic differences in two separate fixes for buffer->request_buffer problem. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] qla2xxx: Update version number to 8.01.05-k4.Andrew Vasquez2006-08-061-1/+1
| | | | | | | | | | | | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] qla2xxx: Fix to allow to reset devices using sg interface (sg_reset).Vladislav Bolkhovitin2006-08-061-9/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently it is impossible to reset provided by Qlogic QLA2xxx driver SCSI devices externally using corresponding sg devices, particularly via sg_reset utility, because qla2xxx driver in qla2xxx_eh_device_reset() function checks if the input scsi_cmnd has its private data (CMD_SP()) attached. Then the found pointer isn't used anywhere inside of qla2xxx_eh_device_reset(). If the RESET request comes from sg device, it doesn't have such private data. The attached patch removes check for non-NULL CMD_SP() from qla2xxx_eh_device_reset(), hence allows to reset QLA2xxx's devices using corresponding sg devices. AV: change applies to bus/host reset handlers as well. Signed-off-by: Vladislav Bolkhovitin <vst@vlnb.net> Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] qla2xxx: Log Trace/Diagonostic asynchronous events.Andrew Vasquez2006-08-062-0/+6
| | | | | | | | | | | | | | | Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] qla2xxx: Correct endianess problem while issuing a Marker IOCB on ↵Shyam Sundar2006-08-061-0/+1
| | | | | | | | | | | | | | | | | | | | | ISP24xx. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] lpfc 8.1.7 : Change version number to 8.1.8James Smart2006-08-061-1/+1
| | | | | | | | | | | | | | | | | | | | | Change version number to 8.1.8 Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] lpfc 8.1.7 : ID String and Message fixesJames Smart2006-08-066-31/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ID String and Message fixes - Fix switch symbolic name registration to match cross-OS values - Replace printk's with more standard lpfc_printf_log calls - Make all lpfc_printf_log message numbers unique Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] lpfc 8.1.7 : Short bug fixesJames Smart2006-08-064-6/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Short bug fixes: - Fix iocbq list corruption due to missing list_del's in ct handling - Missing unlock in lpfc_sli_next_iotag() - Fix initialization of can_queue value - Differentiate sysfs mailbox errors with different codes. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] lpfc 8.1.7 : Fix race condition between lpfc_sli_issue_mbox and ↵James Smart2006-08-061-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | lpfc_online Fix race condition between lpfc_sli_issue_mbox and lpfc_online Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] lpfc 8.1.7 : Fix failing firmware download due to mailbox delays ↵James Smart2006-08-065-5/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | needing to be longer Fix failing firmware download due to mailbox delays needing to be longer. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] lpfc 8.1.7 : Add statistics reset callback for FC transportJames Smart2006-08-063-4/+103
| | | | | | | | | | | | | | | Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] megaraid_{mm,mbox}: a fix on "kernel unaligned access address" issueJu, Seokmann2006-07-283-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There was an issue in the data structure defined by megaraid driver casuing "kernel unaligned access.." messages to be displayed during IOCTL on IA64 platform. The issue has been reported/fixed by Sakurai Hiroomi [sakurai_hiro@soft.fujitsu.com]. Signed-Off By: Seokmann Ju <seokmann.ju@lsil.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] megaraid_{mm,mbox}: a fix on INQUIRY with EVPDJu, Seokmann2006-07-282-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this patch, driver will protect data corruption created by INQUIRY with EVPD request to megaraid controllers. As specified in the changelog, megaraid F/W already has fixed the issue and being under process of release. Meanwhile, driver will protect the system with this patch. Signed-Off By: Seokmann Ju <seokmann.ju@lsil.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] megaraid_{mm,mbox}: 64-bit DMA capability checkerJu, Seokmann2006-07-283-8/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch contains - a fix for 64-bit DMA capability check in megaraid_{mm,mbox} driver. - includes changes (going back to 32-bit DMA mask if 64-bit DMA mask failes) suggested by James with previous patch. - addition of SATA 150-4/6 as commented by Vasily Averin. With patch, the driver access PCIconfiguration space with dedicated offset to read a signature. If the signature read, it means that the controller has capability to handle 64-bit DMA. Without this patch, the driver used to blindly claim 64-bit DMA capability. The issue has been reported by Vasily Averin [vvs@sw.ru]. Thank you Vasily for the reporting. Signed-Off By: Seokmann Ju <seokmann.ju@lsil.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] iscsi bugfixes: update and move version numberMike Christie2006-07-282-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | The version info is useful for iscsi tcp, iser and qla4xxx so move to transport class. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] iscsi bugfixes: fix mem leaks in libiscsiMike Christie2006-07-281-0/+3
| | | | | | | | | | | | | | | | | | | | | We were leaking some strings. This patch just frees them. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] iscsi bugfixes: pass errors from complete_pdu to callerMike Christie2006-07-282-10/+19
| | | | | | | | | | | | | | | | | | | | | | | | Must pass ISCSI_ERR values from the recv path and propogate them upwards. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] iscsi bugfixes: reduce memory allocationsMike Christie2006-07-283-65/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently try to allocate a max_recv_data_segment_length which can be very large (default is 64K), and common uses are up to 1MB. It is very very difficult to allocte this much contiguous memory and it turns out we never even use it. We really only need a couple of pages, so this patch has us allocates just what we know what we need today. Later if vendors start adding vendor specific data and we need to handle large buffers we can do this, but for the last 4 years we have not seen anyone do this or request it. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] iscsi bugfixes: dont use GFP_KERNEL for sending errorsMike Christie2006-07-281-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | iscsi_tcp can send error events from soft irq context so we cannot use GFP_KERNEL. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] iscsi bugfixes: fix oops when removing sessionMike Christie2006-07-281-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | We are touching the cls_session after we have freed it. This causes a oops. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] iscsi bugfixes: fix oops when iser is flushing ioMike Christie2006-07-282-47/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we enter recovery and flush the running commands we cannot freee the connection before flushing the commands. Some commands may have a reference to the connection that needs to be released before. iscsi_stop was forcing the term and suspend too early and was causing a oops in iser, so this patch removes those callbacks all together and allows the LLD to handle that detail. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] iscsi bugfixes: fix abort handlingMike Christie2006-07-281-25/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Abort handler fixes. If a connection is dropped and reconnected while an abort is running then we should assume the recovery code will clean up the abort. Not doing so causes a oops. And if a command completes then we get the status for the abort, we do not need to call into the LLD to cleanup the resources. Doing this causes and oops in iser because it ends up freeing some resources twice. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] iscsi bugfixes: handle data rsp errorsMike Christie2006-07-281-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | if iscsi_data_rsp fails we must bail out. Since the pdu values like data length are invalid we cannot continue to process the data since it could over run buffers. This fixes a bug with cisco 5428s where that target is sending too much data. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] iscsi bugfixes: fix r2t handlingMike Christie2006-07-282-76/+59
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The iscsi tcp code can pluck multiple rt2s from the tasks's r2tqueue in the xmit code. This can result in the task being queued on the xmit queue but gettting completed at the same time. This patch fixes the above bug by making the fifo a list so we always remove the entry on the list del. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] iscsi bugfixes: send correct error values to userspaceMike Christie2006-07-281-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the xmit patch we are sending a -EXXX value to iscsi_conn_failure which is causing userspace to get confused. We should be sending a ISCSI_ERR_* value that userspace understands. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] hptiop: wrong register used in hptiop_reset_hba()HighPoint Linux Team2006-07-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | IOP reset message should be posted to inbound message register instead of outbound message register. Signed-off-by: HighPoint Linux Team <linux@highpoint-tech.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| * | [SCSI] sym2: claim only "Storage" classGrant Grundler2006-07-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The follow patch fixes a problem for Matt Taggart. The Compaq system he had (dl380?) has a SmartArray device that exposes the 53c1510 device in both RAID and "normal" modes. The difference is in RAID mode, the smart array driver (IIRC) should claim the device instead of sym2 driver. Patch below prevents sym2 from claiming the device when the RAID "daughter board" is attached. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | | Merge branch 'upstream-greg' of ↵Greg Kroah-Hartman2006-08-244-26/+180
|\ \ \ | | | | | | | | | | | | gregkh@master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
| * | | [PATCH] sata_via: use old SCR access pattern on vt6420Tejun Heo2006-08-241-5/+112
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | vt6420 has super-fragile SCR registers which can hang the whole machine if accessed with the wrong timings. This patch makes sata_via use SCR registers only during probing and with the same timings as before (pre new EH), which is proven to work. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * | | [PATCH] ata_piix: implement force_pcs module parameterTejun Heo2006-08-241-1/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements force_pcs module parameter for ata_piix. If 1, PCS is ignored, 2 honored. As there seem to be quite a few ICHs w/ impaired PCS, this option will be useful for cases where the default setting doesn't work. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * | | [PATCH] ata_piix: ignore PCS on ICH5Tejun Heo2006-08-241-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There have been a number of reports regarding some ICH5s failing to detect devices since the PCS handling update. Analysis shows that these problems are caused by bogus PCS values from those controllers. Before the PCS update, the driver didn't honor PCS regs exactly and probed them in many cases PCS reports no device. Now that PCS is honored exactly, these hardware problems are visible. This patch makes ICH5 ignore PCS. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * | | [PATCH] ata_piix: fix ghost device probing by honoring PCS present bitsTejun Heo2006-08-221-17/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move out PCS handling from piix_sata_prereset() into piix_sata_present_mask() and use it from newly implemented piix_sata_softreset(). Class codes for devices which are indicated to be absent by PCS are cleared to ATA_DEV_NONE. This fixes ghost device problem reported on ICH6 and 7. This patch moves PCS handling from prereset to softreset, which makes two behavior changes. * perform softreset even when PCS indicates no device * PCS handling is repeated before retrying softresets due to reset failures. Both behavior changes are intended and more consistent with how other drivers behave. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * | | Merge branch 'master' into upstream-fixesJeff Garzik2006-08-192-1/+4
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