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2019-11-01ata: make qc_prep return ata_completion_errorsJiri Slaby1-2/+4
In case a driver wants to return an error from qc_prep, return enum ata_completion_errors. sata_mv is one of those drivers -- see the next patch. Other drivers return the newly defined AC_ERR_OK. [v2] use enum ata_completion_errors and AC_ERR_OK. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Jens Axboe <axboe@kernel.dk> Cc: linux-ide@vger.kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-08-26sata_sil24: use dma_set_mask_and_coherentChristoph Hellwig1-22/+4
Use the dma_set_mask_and_coherent helper to set the DMA mask. Rely on the relatively recent change that setting a larger than required mask will never fail to avoid the need for the boilerplate 32-bit fallback code. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-06-29ata: sata_sil24: Remove call to memset after dmam_alloc_coherentFuqian Huang1-1/+0
In commit af7ddd8a627c ("Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping"),, dmam_alloc_coherent has already zeroed the memory. So memset is not needed. Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-05-24treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118Thomas Gleixner1-11/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 44 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190523091651.032047323@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-05Merge branch 'for-4.18' of ↵Linus Torvalds1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata updates from Tejun Heo: - libata has always been limiting the maximum queue depth to 31, with one entry set aside mostly for historical reasons. This didn't use to make much difference but Jens found out that modern hard drives can actually perform measurably better with the extra one queue depth. Jens updated libata core so that it can make use of full 32 queue depth - Damien updated command retry logic in error handling so that it doesn't unnecessarily retry when upper layer (SCSI) is gonna handle them - A couple misc changes * 'for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: sata_fsl: use the right type for tag bitshift ahci: enable full queue depth of 32 libata: don't clamp queue depth to ATA_MAX_QUEUE - 1 libata: add extra internal command sata_nv: set host can_queue count appropriately libata: remove assumption that ATA_MAX_QUEUE - 1 is the max libata: use ata_tag_internal() consistently libata: bump ->qc_active to a 64-bit type libata: convert core and drivers to ->hw_tag usage libata: introduce notion of separate hardware tags libata: Fix command retry decision libata: Honor RQF_QUIET flag libata: Make ata_dev_set_mode() less verbose libata: Fix ata_err_string() libata: Fix comment typo in ata_eh_analyze_tf() sata_nv: don't use block layer bounce buffer ata: hpt37x: Convert to use match_string() helper
2018-05-11libata: convert core and drivers to ->hw_tag usageJens Axboe1-3/+3
Anything that goes to the hardware should use ->hw_tag, anything related to internal lookup should be using ->tag. Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Tejun Heo <tj@kernel.org>
2018-05-01ata: fix spelling mistake: "directon" -> "direction"Colin Ian King1-2/+2
Trivial fix to spelling mistake in sil24_cerr_info message text Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-04-08ata: remove deprecated use of pci apiQuentin Lambert1-5/+5
Replace occurences of the pci api by appropriate call to the dma api. A simplified version of the semantic patch that finds this problem is as follows: (http://coccinelle.lip6.fr) @deprecated@ idexpression id; position p; @@ ( pci_dma_supported@p ( id, ...) | pci_alloc_consistent@p ( id, ...) ) @bad1@ idexpression id; position deprecated.p; @@ ...when != &id->dev when != pci_get_drvdata ( id ) when != pci_enable_device ( id ) ( pci_dma_supported@p ( id, ...) | pci_alloc_consistent@p ( id, ...) ) @depends on !bad1@ idexpression id; expression direction; position deprecated.p; @@ ( - pci_dma_supported@p ( id, + dma_supported ( &id->dev, ... + , GFP_ATOMIC ) | - pci_alloc_consistent@p ( id, + dma_alloc_coherent ( &id->dev, ... + , GFP_ATOMIC ) ) Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-03-24libata: remove ATA_FLAG_LOWTAGTejun Heo1-1/+1
sata_sil24 for some reason pukes when tags are allocated round-robin which helps tag ordered controllers. To work around the issue, 72dd299d5039 ("libata: allow sata_sil24 to opt-out of tag ordered submission") introduced ATA_FLAG_LOWTAG which tells libata tag allocation to do lowest-first. However, with the recent switch to blk-mq tag allocation, the liata tag allocation code path is no longer used and the workaround is now implemented in the block layer and selected by setting scsi_host_template->tag_alloc_policy to BLK_TAG_ALLOC_FIFO. See 9269e23496dd ("libata: make sata_sil24 use fifo tag allocator"). This leaves ATA_FLAG_LOWTAG withoout any actual user. Remove it. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Shaohua Li <shli@fb.com> Cc: Dan Williams <dan.j.williams@intel.com>
2015-02-12Merge branch 'for-3.20/drivers' of git://git.kernel.dk/linux-blockLinus Torvalds1-0/+1
Pull block driver changes from Jens Axboe: "This contains: - The 4k/partition fixes for brd from Boaz/Matthew. - A few xen front/back block fixes from David Vrabel and Roger Pau Monne. - Floppy changes from Takashi, cleaning the device file creation. - Switching libata to use the new blk-mq tagging policy, removing code (and a suboptimal implementation) from libata. This will throw you a merge conflict, since a bug in the original libata tagging code was fixed since this code was branched. Trivial. From Shaohua. - Conversion of loop to blk-mq, from Ming Lei. - Cleanup of the io_schedule() handling in bsg from Peter Zijlstra. He claims it improves on unreadable code, which will cost him a beer. - Maintainer update or NDB, now handled by Markus Pargmann. - NVMe: - Optimization from me that avoids a kmalloc/kfree per IO for smaller (<= 8KB) IO. This cuts about 1% of high IOPS CPU overhead. - Removal of (now) dead RCU code, a relic from before NVMe was converted to blk-mq" * 'for-3.20/drivers' of git://git.kernel.dk/linux-block: xen-blkback: default to X86_32 ABI on x86 xen-blkfront: fix accounting of reqs when migrating xen-blkback,xen-blkfront: add myself as maintainer block: Simplify bsg complete all floppy: Avoid manual call of device_create_file() NVMe: avoid kmalloc/kfree for smaller IO MAINTAINERS: Update NBD maintainer libata: make sata_sil24 use fifo tag allocator libata: move sas ata tag allocation to libata-scsi.c libata: use blk taging NVMe: within nvme_free_queues(), delete RCU sychro/deferred free null_blk: suppress invalid partition info brd: Request from fdisk 4k alignment brd: Fix all partitions BUGs axonram: Fix bug in direct_access loop: add blk-mq.h include block: loop: don't handle REQ_FUA explicitly block: loop: introduce lo_discard() and lo_req_flush() block: loop: say goodby to bio block: loop: improve performance via blk-mq
2015-01-26libata: make sata_sil24 use fifo tag allocatorShaohua Li1-0/+1
libata starts using block tag now, we can use BLK_TAG_ALLOC_FIFO to solve the sata_sil24 tag bug. https://bugzilla.kernel.org/show_bug.cgi?id=87101 Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Shaohua Li <shli@fb.com> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2015-01-19libata: allow sata_sil24 to opt-out of tag ordered submissionDan Williams1-1/+1
Ronny reports: https://bugzilla.kernel.org/show_bug.cgi?id=87101 "Since commit 8a4aeec8d "libata/ahci: accommodate tag ordered controllers" the access to the harddisk on the first SATA-port is failing on its first access. The access to the harddisk on the second port is working normal. When reverting the above commit, access to both harddisks is working fine again." Maintain tag ordered submission as the default, but allow sata_sil24 to continue with the old behavior. Cc: <stable@vger.kernel.org> Cc: Tejun Heo <tj@kernel.org> Reported-by: Ronny Hegewald <Ronny.Hegewald@online.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2014-07-22sata_sil24: Identify which card suffered IRQ status errorTim Small1-2/+2
In machines with multiple Silicon Image 3124 and/or 3132 cards, there is no way to tell which card is the culprit when the sata_sil24 interrupt handler gets a bad status. Tested-by: Tim Small <tim@seoss.co.uk> Signed-off-by: Tim Small <tim@seoss.co.uk> Signed-off-by: Tejun Heo <tj@kernel.org>
2014-05-09ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host driversBartlomiej Zolnierkiewicz1-3/+7
This patch fixes host drivers to use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable. Benefits of this change: * unused code is not being compiled in for CONFIG_PM=y, CONFIG_PM_SLEEP=n and CONFIG_PM_RUNTIME=y configurations * easier transition to use struct dev_pm_ops and SIMPLE_DEV_PM_OPS() in the future * more consistent code (there are host drivers which are using the correct CONFIG_PM_SLEEP checks already) The patch leaves the core libata code and ->port_[suspend,resume] support in sata_[inic162x,nv,sil24].c alone for now. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2013-06-02ata: use pci_get_drvdata()Jingoo Han1-1/+1
Use the wrapper function for getting the driver data using pci_dev instead of using dev_get_drvdata() with &pdev->dev, so we can directly pass a struct pci_dev. This is a purely cosmetic change. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2012-11-28sata_sil24: remove unused variable from sata_sil24.cWei Yongjun1-4/+0
The variable addr is initialized but never used otherwise, so remove the unused variable. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-07-25ata: use module_pci_driverAxel Lin1-12/+1
This patch converts the drivers in drivers/ata/* to use module_pci_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: Alan Cox <alan@linux.intel.com> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Mikael Pettersson <mikpe@it.uu.se> Cc: Mark Lord <kernel@teksavvy.com> Cc: Jeremy Higdon <jeremy@sgi.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-01-13module_param: make bool parameters really bool (drivers & misc)Rusty Russell1-1/+1
module_param(bool) used to counter-intuitively take an int. In fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy trick. It's time to remove the int/unsigned int option. For this version it'll simply give a warning, but it'll break next kernel version. Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-10-08sata_sil24: Use constJoe Perches1-2/+2
Reduce data by using const. $ size drivers/ata/sata_sil24.o* text data bss dec hex filename 12764 614 2688 16066 3ec2 drivers/ata/sata_sil24.o.new 12320 1058 2688 16066 3ec2 drivers/ata/sata_sil24.o.old Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2011-07-23ata: Add and use ata_print_version_onceJoe Perches1-3/+1
Use a single mechanism to show driver version. Reduces text a tiny bit too. Remove uses of static int printed_version Add and use ata_print_version(const struct device *, const char *ver) and ata_print_version_once. $ size drivers/ata/built-in.* text data bss dec hex filename 544969 73893 116584 735446 b38d6 drivers/ata/built-in.allyesconfig.ata.o 543870 73893 116592 734355 b34ad drivers/ata/built-in.allyesconfig.print_once.o 141328 14689 4220 160237 271ed drivers/ata/built-in.defconfig.ata.o 141212 14689 4220 160121 27179 drivers/ata/built-in.defconfig.print_once.o Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-07-23ata: Convert ata_<foo>_printk(KERN_<LEVEL> to ata_<foo>_<level>Joe Perches1-9/+8
Saves text by removing nearly duplicated text format strings by creating ata_<foo>_printk functions and printf extension %pV. ata defconfig size shrinks ~5% (~8KB), allyesconfig ~2.5% (~13KB) Format string duplication comes from: #define ata_link_printk(link, lv, fmt, args...) do { \ if (sata_pmp_attached((link)->ap) || (link)->ap->slave_link) \ printk("%sata%u.%02u: "fmt, lv, (link)->ap->print_id, \ (link)->pmp , ##args); \ else \ printk("%sata%u: "fmt, lv, (link)->ap->print_id , ##args); \ } while(0) Coalesce long formats. $ size drivers/ata/built-in.* text data bss dec hex filename 544969 73893 116584 735446 b38d6 drivers/ata/built-in.allyesconfig.ata.o 558429 73893 117864 750186 b726a drivers/ata/built-in.allyesconfig.dev_level.o 141328 14689 4220 160237 271ed drivers/ata/built-in.defconfig.ata.o 149567 14689 4220 168476 2921c drivers/ata/built-in.defconfig.dev_level.o Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-07-23ata: Convert dev_printk(KERN_<LEVEL> to dev_<level>(Joe Perches1-12/+10
Saves a bit of text as the call takes fewer args. Coalesce a few formats. Convert a few bare printks to pr_cont. $ size drivers/ata/built-in.o* text data bss dec hex filename 558429 73893 117864 750186 b726a drivers/ata/built-in.o.allyesconfig.new 559574 73893 117888 751355 b76fb drivers/ata/built-in.o.allyesconfig.old 149567 14689 4220 168476 2921c drivers/ata/built-in.o.defconfig.new 149851 14689 4220 168760 29338 drivers/ata/built-in.o.defconfig.old Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-03-02libata: remove ATA_FLAG_NO_LEGACYSergei Shtylyov1-4/+3
All checks of ATA_FLAG_NO_LEGACY have been removed by the commits c791c30670ea61f19eec390124128bf278e854fe ([libata] minor PCI IDE probe fixes and cleanups) and f0d36efdc624beb3d9e29b9ab9e9537bf0f25d5b (libata: update libata core layer to use devres), so I think it's time to finally get rid of this flag... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2011-03-02libata: remove ATA_FLAG_MMIOSergei Shtylyov1-3/+3
Commit 0d5ff566779f894ca9937231a181eb31e4adff0e (libata: convert to iomap) removed all checks of ATA_FLAG_MMIO but neglected to remove the flag itself. Do it now, at last... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-10-21libata: add @ap to ata_wait_register() and introduce ata_msleep()Tejun Heo1-7/+7
Add optional @ap argument to ata_wait_register() and replace msleep() calls with ata_msleep() which take optional @ap in addition to the duration. These will be used to implement EH exclusion. This patch doesn't cause any behavior difference. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-06-10sata_sil24: Use memory barriers before issuing commandsCatalin Marinas1-0/+10
The data in the cmd_block buffers may reach the main memory after the writel() to the device ports. This patch introduces two calls to wmb() to ensure the relative ordering. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Tested-by: Colin Tuckley <colin.tuckley@arm.com> Cc: Tejun Heo <tj@kernel.org> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-06-10sata_sil24: memset() overflowDan Carpenter1-1/+1
cb->atapi.cdb is an array of 16 u8 elements. The call too memset() would set the first part of the sge array to zero as well. It's not a packed struct. This one has been around for five years. I found it with Smatch. I think the reason no one has seen it before is because we normally call sil24_fill_sg() and that overwrites sge with proper information? Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-06-07sata_sil24: fix kernel panic on ARM caused by unaligned access in sata_sil24Colin Tuckley1-6/+6
The sata_sil24 driver has six 16-bit registers that are initialised with 32-bit writes. This cause a kernel panic on ARM due to the unaligned accesses which result. This patch changes the accesses to the correct 16-bit ones. Signed-off-by: Colin Tuckley <colin.tuckley@arm.com> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-05-17libata: kill ATA_FLAG_DISABLEDTejun Heo1-7/+2
ATA_FLAG_DISABLED is only used by drivers which don't use ->error_handler framework and is largely broken. Its only meaningful function is to make irq handlers skip processing if the flag is set, which is largely useless and even harmful as it makes those ports more likely to cause IRQ storms. Kill ATA_FLAG_DISABLED and makes the callers disable attached devices instead. ata_port_probe() and ata_port_disable() which manipulate the flag are also killed. This simplifies condition check in IRQ handlers. While updating IRQ handlers, remove ap NULL check as libata guarantees consecutive port allocation (unoccupied ports are initialized with dummies) and long-obsolete ATA_QCFLAG_ACTIVE check (checked by ata_qc_from_tag()). Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo1-0/+1
implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2009-12-03sata_sil24: MSI support, disabled by defaultVivek Mahajan1-0/+9
The following patch adds MSI support. Some platforms may have broken MSI, so those are defaulted to use legacy PCI interrupts. Signed-off-by: Vivek Mahajan <vivek.mahajan@freescale.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-09-01sata_sil24: always set protocol override for non-ATAPI data commandsRobert Hancock1-0/+11
The sil24 hardware has a built-in list of commands and associated protocols that gets used by default to decide how to handle a given command. However, if the command is not known to the controller then it presumably assumes it to be a non-data command which then causes protocol mismatch errors if the device ends up requesting data transfer. The new DATA SET MANAGEMENT - Trim command causes this issue since it's a DMA data-out command. Since we should always know best what protocol the command should be using, let's just set the override flag to inform the controller what protocol to use for all non-ATAPI commands with data transfer. Signed-off-by: Robert Hancock <hancockrwd@gmail.com> Tested-by: Mark Lord <liml@rtr.ca> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-04-07dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)Yang Hongyang1-3/+3
Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07dma-mapping: replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)Yang Hongyang1-2/+2
Replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-24[libata] convert drivers to use ata.h mode mask definesErik Inge Bolsø1-9/+9
No functional changes in this patch. Signed-off-by: Erik Inge Bolsø <knan-lkml@anduin.net> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-01-08sata_sil24: remove unused sil24_port_multiplierGrant Grundler1-7/+0
AFAICT, struct sil24_port_multiplier isn't used anywhere. Remove it. Signed-off-by: Grant Grundler <grundler@google.com> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-27sata_sil24: configure max read request size to 4kTejun Heo1-0/+5
Due to request posting limitations, bandwidth of sil3132 is limited to around 120MB/s with the minimum pci-e payload size (128bytes) which is used by most consumer systems. However, write throughput can be slightly (~3%) increased by increasing the max read requeset size. Configure it to 4k which is the maximum supported. This optimization is also done by SIMG's windows driver. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-29libata: make SCR access ops per-linkTejun Heo1-6/+6
Logically, SCR access ops should take @link; however, there was no compelling reason to convert all SCR access ops when adding @link abstraction as there's one-to-one mapping between a port and a non-PMP link. However, that assumption won't hold anymore with the scheduled addition of slave link. Make SCR access ops per-link. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-04sata_sil24: add DID for another adaptec flavorTejun Heo1-0/+1
There's another DID used for Adaptec card. Add it. Reported by Travis Read. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Travis Read <ics@dark.net.au> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-19sata_sil24: don't use NCQ if marvell 4140 PMP is attachedTejun Heo1-0/+11
When 4140 PMP is attached to sil24, NCQ commands to fan out port 1 and 2 (0 based) often stall if commands are in progress to other ports. I've tried a number of things but can't tell what's going on. It never happens w/ ahci and reportedly sata_mv which can issue NCQ commands to multiple devices simultaneously like sil24 does. Disable NCQ for devices behind 4140 PMP for the time being. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Mark Lord <liml@rtr.ca> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-04-17libata: move link onlineness check out of softreset methodsTejun Heo1-7/+0
Currently, SATA softresets should do link onlineness check before actually performing SRST protocol but it doesn't really belong to softreset. This patch moves onlineness check in softreset to ata_eh_reset() and ata_eh_followup_srst_needed() to clean up code and help future sata_mv changes which need clear separation between SCR and TF accesses. sata_fsl is peculiar in that its softreset really isn't softreset but combination of hardreset and softreset. This patch adds dummy private ->prereset to keep the current behavior but the driver really should implement separate hard and soft resets and return -EAGAIN from hardreset if it should be follwed by softreset. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-04-17libata: kill dead code paths in reset pathTejun Heo1-3/+0
Some code paths which had been made obsolete by recent reset simplification were still around. Kill them. * ata_eh_reset() checked for ATA_DEV_UNKNOWN to determine classification failure. This is no longer applicable. * ata_do_reset() should convert ATA_DEV_UNKNOWN to ATA_DEV_NONE regardless of reset result (e.g. -EAGAIN). * LLDs don't need to convert ATA_DEV_UNKNOWN to ATA_DEV_NONE. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-04-17libata: implement PMP helpersTejun Heo1-20/+7
Implement helpers to test whether PMP is supported, attached and determine pmp number to use when issuing SRST to a link. While at it, move ata_is_host_link() so that it's together with the two new PMP helpers. This change simplifies LLDs and helps making PMP support optional. Signed-off-by: Tejun Heo <htejun@gmail.com>
2008-04-17libata: don't use ap->ioaddr in non-SFF driversTejun Heo1-29/+31
ap->ioaddr is to carry addresses for TF and BMDMA registers of a SFF controller, don't abuse it in non-SFF controllers. Signed-off-by: Tejun Heo <htejun@gmail.com>
2008-04-17libata: remove check_status from non-SFF driversTejun Heo1-15/+2
Now that all SFF stuff is separated out of core layer, core layer doesn't call ops->[alt_]check_status(). In fact, no one calls them for non-SFF drivers anymore. Kill them. Signed-off-by: Tejun Heo <htejun@gmail.com>
2008-04-17libata: replace tf_read with qc_fill_rtf for non-SFF driversTejun Heo1-8/+0
Now that all SFF stuff is separated out of core layer, core layer doesn't call ops->tf_read directly. It gets called only via ops->qc_fill_rtf() for non-SFF drivers. This patch directly implements private ops->qc_fill_rtf() for non-SFF controllers and kill ops->tf_read(). This is much cleaner for non-SFF controllers as some of them have to cache SFF register values in private data structure and report the cached values via ops->tf_read(). Also, ops->tf_read() gets nasty for controllers which don't have clear notion of TF registers when operation is not in progress. As this change makes default ops->qc_fill_rtf unnecessary, move ata_sff_qc_fill_rtf() form ata_base_port_ops to ata_sff_port_ops where it belongs. Signed-off-by: Tejun Heo <htejun@gmail.com>
2008-04-17libata: drop @finish_qc from ata_qc_complete_multiple()Tejun Heo1-10/+9
ata_qc_complete_multiple() took @finish_qc and called it on every qc before completing it. This was to give opportunity to update TF cache before ata_qc_complete() tries to fill result_tf. Now that result TF is a separate operation, this is no longer necessary. Update sata_sil24, which was the only user of this mechanism, such that it implements its own ops->qc_fill_rtf() and drop @finish_qc from ata_qc_complete_multiple(). Signed-off-by: Tejun Heo <htejun@gmail.com>
2008-04-17libata: move PMP SCR access failure during reset to ata_eh_reset()Tejun Heo1-1/+1
If PMP fan-out reset fails and SCR isn't accessible, PMP should be reset. This used to be tested by sata_pmp_std_hardreset() and communicated to EH by -ERESTART. However, this logic is generic and doesn't really have much to do with specific hardreset implementation. This patch moves SCR access failure detection logic to ata_eh_reset() where it belongs. As this makes sata_pmp_std_hardreset() identical to sata_std_hardreset(), the function is killed and replaced with the standard method. Signed-off-by: Tejun Heo <htejun@gmail.com>
2008-04-17libata: rename SFF port opsTejun Heo1-3/+3
Add sff_ prefix to SFF specific port ops. This rename is in preparation of separating SFF support out of libata core layer. This patch strictly renames ops and doesn't introduce any behavior difference. Signed-off-by: Tejun Heo <htejun@gmail.com>
2008-04-17libata: make reset related methods proper port operationsTejun Heo1-5/+13
Currently reset methods are not specified directly in the ata_port_operations table. If a LLD wants to use custom reset methods, it should construct and use a error_handler which uses those reset methods. It's done this way for two reasons. First, the ops table already contained too many methods and adding four more of them would noticeably increase the amount of necessary boilerplate code all over low level drivers. Second, as ->error_handler uses those reset methods, it can get confusing. ie. By overriding ->error_handler, those reset ops can be made useless making layering a bit hazy. Now that ops table uses inheritance, the first problem doesn't exist anymore. The second isn't completely solved but is relieved by providing default values - most drivers can just override what it has implemented and don't have to concern itself about higher level callbacks. In fact, there currently is no driver which actually modifies error handling behavior. Drivers which override ->error_handler just wraps the standard error handler only to prepare the controller for EH. I don't think making ops layering strict has any noticeable benefit. This patch makes ->prereset, ->softreset, ->hardreset, ->postreset and their PMP counterparts propoer ops. Default ops are provided in the base ops tables and drivers are converted to override individual reset methods instead of creating custom error_handler. * ata_std_error_handler() doesn't use sata_std_hardreset() if SCRs aren't accessible. sata_promise doesn't need to use separate error_handlers for PATA and SATA anymore. * softreset is broken for sata_inic162x and sata_sx4. As libata now always prefers hardreset, this doesn't really matter but the ops are forced to NULL using ATA_OP_NULL for documentation purpose. * pata_hpt374 needs to use different prereset for the first and second PCI functions. This used to be done by branching from hpt374_error_handler(). The proper way to do this is to use separate ops and port_info tables for each function. Converted. Signed-off-by: Tejun Heo <htejun@gmail.com>
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