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path: root/drivers/ata/sata_fsl.c
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2013-10-10drivers: clean-up prom.h implicit includesRob Herring1-0/+2
Powerpc is a mess of implicit includes by prom.h. Add the necessary explicit includes to drivers in preparation of prom.h cleanup. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Grant Likely <grant.likely@linaro.org>
2013-08-20sata_fsl: save irqs while coalescingAnthony Foiani1-2/+3
Before this patch, I was seeing the following lockdep splat on my MPC8315 (PPC32) target: [ 9.086051] ================================= [ 9.090393] [ INFO: inconsistent lock state ] [ 9.094744] 3.9.7-ajf-gc39503d #1 Not tainted [ 9.099087] --------------------------------- [ 9.103432] inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. [ 9.109431] scsi_eh_1/39 [HC1[1]:SC0[0]:HE0:SE1] takes: [ 9.114642] (&(&host->lock)->rlock){?.+...}, at: [<c02f4168>] sata_fsl_interrupt+0x50/0x250 [ 9.123137] {HARDIRQ-ON-W} state was registered at: [ 9.128004] [<c006cdb8>] lock_acquire+0x90/0xf4 [ 9.132737] [<c043ef04>] _raw_spin_lock+0x34/0x4c [ 9.137645] [<c02f3560>] fsl_sata_set_irq_coalescing+0x68/0x100 [ 9.143750] [<c02f36a0>] sata_fsl_init_controller+0xa8/0xc0 [ 9.149505] [<c02f3f10>] sata_fsl_probe+0x17c/0x2e8 [ 9.154568] [<c02acc90>] driver_probe_device+0x90/0x248 [ 9.159987] [<c02acf0c>] __driver_attach+0xc4/0xc8 [ 9.164964] [<c02aae74>] bus_for_each_dev+0x5c/0xa8 [ 9.170028] [<c02ac218>] bus_add_driver+0x100/0x26c [ 9.175091] [<c02ad638>] driver_register+0x88/0x198 [ 9.180155] [<c0003a24>] do_one_initcall+0x58/0x1b4 [ 9.185226] [<c05aeeac>] kernel_init_freeable+0x118/0x1c0 [ 9.190823] [<c0004110>] kernel_init+0x18/0x108 [ 9.195542] [<c000f6b8>] ret_from_kernel_thread+0x64/0x6c [ 9.201142] irq event stamp: 160 [ 9.204366] hardirqs last enabled at (159): [<c043f778>] _raw_spin_unlock_irq+0x30/0x50 [ 9.212469] hardirqs last disabled at (160): [<c000f414>] reenable_mmu+0x30/0x88 [ 9.219867] softirqs last enabled at (144): [<c002ae5c>] __do_softirq+0x168/0x218 [ 9.227435] softirqs last disabled at (137): [<c002b0d4>] irq_exit+0xa8/0xb4 [ 9.234481] [ 9.234481] other info that might help us debug this: [ 9.240995] Possible unsafe locking scenario: [ 9.240995] [ 9.246898] CPU0 [ 9.249337] ---- [ 9.251776] lock(&(&host->lock)->rlock); [ 9.255878] <Interrupt> [ 9.258492] lock(&(&host->lock)->rlock); [ 9.262765] [ 9.262765] *** DEADLOCK *** [ 9.262765] [ 9.268684] no locks held by scsi_eh_1/39. [ 9.272767] [ 9.272767] stack backtrace: [ 9.277117] Call Trace: [ 9.279589] [cfff9da0] [c0008504] show_stack+0x48/0x150 (unreliable) [ 9.285972] [cfff9de0] [c0447d5c] print_usage_bug.part.35+0x268/0x27c [ 9.292425] [cfff9e10] [c006ace4] mark_lock+0x2ac/0x658 [ 9.297660] [cfff9e40] [c006b7e4] __lock_acquire+0x754/0x1840 [ 9.303414] [cfff9ee0] [c006cdb8] lock_acquire+0x90/0xf4 [ 9.308745] [cfff9f20] [c043ef04] _raw_spin_lock+0x34/0x4c [ 9.314250] [cfff9f30] [c02f4168] sata_fsl_interrupt+0x50/0x250 [ 9.320187] [cfff9f70] [c0079ff0] handle_irq_event_percpu+0x90/0x254 [ 9.326547] [cfff9fc0] [c007a1fc] handle_irq_event+0x48/0x78 [ 9.332220] [cfff9fe0] [c007c95c] handle_level_irq+0x9c/0x104 [ 9.337981] [cfff9ff0] [c000d978] call_handle_irq+0x18/0x28 [ 9.343568] [cc7139f0] [c000608c] do_IRQ+0xf0/0x1a8 [ 9.348464] [cc713a20] [c000fc8c] ret_from_except+0x0/0x14 [ 9.353983] --- Exception: 501 at _raw_spin_unlock_irq+0x40/0x50 [ 9.353983] LR = _raw_spin_unlock_irq+0x30/0x50 [ 9.364839] [cc713af0] [c043db10] wait_for_common+0xac/0x188 [ 9.370513] [cc713b30] [c02ddee4] ata_exec_internal_sg+0x2b0/0x4f0 [ 9.376699] [cc713be0] [c02de18c] ata_exec_internal+0x68/0xa8 [ 9.382454] [cc713c20] [c02de4b8] ata_dev_read_id+0x158/0x594 [ 9.388205] [cc713ca0] [c02ec244] ata_eh_recover+0xd88/0x13d0 [ 9.393962] [cc713d20] [c02f2520] sata_pmp_error_handler+0xc0/0x8ac [ 9.400234] [cc713dd0] [c02ecdc8] ata_scsi_port_error_handler+0x464/0x5e8 [ 9.407023] [cc713e10] [c02ecfd0] ata_scsi_error+0x84/0xb8 [ 9.412528] [cc713e40] [c02c4974] scsi_error_handler+0xd8/0x47c [ 9.418457] [cc713eb0] [c004737c] kthread+0xa8/0xac [ 9.423355] [cc713f40] [c000f6b8] ret_from_kernel_thread+0x64/0x6c This fix was suggested by Bhushan Bharat <R65777@freescale.com>, and was discussed in email at: http://linuxppc.10917.n7.nabble.com/MPC8315-reboot-failure-lockdep-splat-possibly-related-tp75162.html Same patch successfully tested with 3.9.7. linux-next compiled but not tested on hardware. This patch is based off linux-next tag next-20130819 (which is commit 66a01bae29d11916c09f9f5a937cafe7d402e4a5 ) Signed-off-by: Anthony Foiani <anthony.foiani@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org
2013-05-24ata: use platform_{get,set}_drvdata()Jingoo Han1-9/+5
Use the wrapper functions for getting and setting the driver data using platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev, so we can directly pass a struct platform_device. Also, unnecessary dev_set_drvdata() is removed, because the driver core clears the driver data to NULL after device_release or on probe failure. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2013-05-01Merge tag 'upstream-linus' of ↵Linus Torvalds1-0/+55
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev Pull libata update from Jeff Garzik: - More ACPI fixes, cleanups - Minor cleanups for sata_highbank, pata_at32, pata_octeon_cf, sata_rcar - pata_legacy: small bug found in opti chipset code (untested fix, due to ancient h/w) - sata_fsl: RX water mark config knob, some h/w needs it - pata_imx: cleanups, DeviceTree support - SCSI<->ATA translator: properly export translator version, not device firmware version * tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: sata_highbank: Rename proc_name to the module name ACPI/libata: Restore libata.noacpi support [libata] acpi: make ata_ap_acpi_handle not block [libata] SCSI: really use SATL version in VPD pata_imx: add devicetree support pata_imx: use void __iomem * for regs pata_imx: cleanup error path pata_imx: Use devm_clk_get sata_rcar: Convert to devm_ioremap_resource() fsl/sata: create a sysfs entry for rx water mark libata-acpi: remove redundent code for power resource handling sata_highbank: make ahci_highbank_pm_ops static pata_octeon_cf: Use resource_size function pata_legacy: bogus clock in opti82c46x_set_piomode() pata_at32: use module_platform_driver_probe()
2013-04-30Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina: "Usual stuff, mostly comment fixes, typo fixes, printk fixes and small code cleanups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (45 commits) mm: Convert print_symbol to %pSR gfs2: Convert print_symbol to %pSR m32r: Convert print_symbol to %pSR iostats.txt: add easy-to-find description for field 6 x86 cmpxchg.h: fix wrong comment treewide: Fix typo in printk and comments doc: devicetree: Fix various typos docbook: fix 8250 naming in device-drivers pata_pdc2027x: Fix compiler warning treewide: Fix typo in printks mei: Fix comments in drivers/misc/mei treewide: Fix typos in kernel messages pm44xx: Fix comment for "CONFIG_CPU_IDLE" doc: Fix typo "CONFIG_CGROUP_CGROUP_MEMCG_SWAP" mmzone: correct "pags" to "pages" in comment. kernel-parameters: remove outdated 'noresidual' parameter Remove spurious _H suffixes from ifdef comments sound: Remove stray pluses from Kconfig file radio-shark: Fix printk "CONFIG_LED_CLASS" doc: put proper reference to CONFIG_MODULE_SIG_ENFORCE ...
2013-04-04fsl/sata: create a sysfs entry for rx water markQiang Liu1-0/+55
Support config RX WATER MARK via sysfs when running at run-time; A wrokaround for fix the exception happened to some WD HDD, found on WD3000HLFS-01G6U1, WD3000HLFS-01G6U0, some SSD disks. The read performance is also regression (about 30%) when use default value. According to the latest documents, 0x10 is the default value of RX WATER MARK, but exception/performance issue happened to some disks mentioned above. The exception log as below when testing read performance with IOZone: ata1.00: exception Emask 0x0 SAct 0x7 SErr 0x800000 action 0x6 frozen ata1: SError: { LinkSeq } ata1.00: failed command: READ FPDMA QUEUED ata1.00: cmd 60/00:00:ff:2c:14/01:00:02:00:00/40 tag 0 ncq 131072 in res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) ata1.00: status: { DRDY } ata1.00: failed command: READ FPDMA QUEUED ata1.00: cmd 60/00:08:ff:2d:14/01:00:02:00:00/40 tag 1 ncq 131072 in res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) ata1.00: status: { DRDY } ata1.00: failed command: WRITE FPDMA QUEUED ata1.00: cmd 61/10:10:af:08:6e/00:00:12:00:00/40 tag 2 ncq 8192 out res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) ata1.00: status: { DRDY } ata1: hard resetting link ata1: Hardreset failed, not off-lined 0 ata1: Signature Update detected @ 504 msecs ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata1.00: configured for UDMA/133 ata1.00: device reported invalid CHS sector 0 ata1.00: device reported invalid CHS sector 0 ata1.00: device reported invalid CHS sector 0 ata1: EH complete The exception/performance can be resolved when RX WATER MARK value is 0x16. Signed-off-by: Qiang Liu <qiang.liu@freescale.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2013-03-20treewide: Fix typos in printkMasanari Iida1-1/+1
Correct spelling typo in various drivers. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-03-05sata_fsl: Remove redundant NULL check before kfreeSyam Sidhardhan1-2/+1
kfree on NULL pointer is a no-op. Signed-off-by: Syam Sidhardhan <s.syam@samsung.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-09-13sata_fsl: add workaround for data length mismatch on freescale V2 controllerShaohui Xie1-4/+35
The freescale V2 SATA controller checks if the received data length matches the programmed length 'ttl', if not, it assumes that this is an error. In ATAPI, the 'ttl' is based on max allocation length and not the actual data transfer length, controller will raise 'DLM' (Data length Mismatch) error bit in Hstatus register. Along with 'DLM', DE (Device error) and FE (fatal Error) bits are also set in Hstatus register, 'E' (Internal Error) bit is set in Serror register and CE (Command Error) and DE (Device error) registers have the corresponding bit set. In this condition, we need to clear errors in following way: in the service routine, based on 'DLM' flag, HCONTROL[27] operation clears Hstatus, CE and DE registers, clear Serror register. Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Signed-off-by: Anju Bhartiya <Anju.Bhartiya@freescale.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-03-13sata_fsl: add support for interrupt coalsecing featureQiang Liu1-4/+107
Adds support for interrupt coalescing feature to reduce interrupt events. Provides a mechanism of adjusting coalescing count and timeout tick by sysfs at runtime, so that tradeoff of latency and CPU load can be made depending on different applications. Signed-off-by: Qiang Liu <qiang.liu@freescale.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-01-18[libata] sata_fsl: fix the controller operating modeJerry Huang1-0/+11
Configure the FSL SATA controller to the preferred, enterprise mode. Signed-off-by: Yutaka Ando <r46913@freescale.com> Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> CC: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-01-09SATA/PATA: convert drivers/ata/* to use module_platform_driver()Axel Lin1-13/+1
This patch converts the drivers in drivers/ata/* to use the module_platform_driver() macro which makes the code smaller and a bit simpler. Cc: Viresh Kumar <viresh.kumar@st.com> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Arnaud Patard <arnaud.patard@rtp-net.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Sylvain Munaut <tnt@246tNt.com> Cc: Anton Vorontsov <avorontsov@ru.mvista.com> Cc: Marek Vasut <marek.vasut@gmail.com> Cc: Florian Fainelli <florian@openwrt.org> Cc: Mark Miesfeld <mmiesfeld@amcc.com> Cc: Ashish Kalra <ashish.kalra@freescale.com> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2011-07-24ata: Convert ata_<foo>_printk(KERN_<LEVEL> to ata_<foo>_<level>Joe Perches1-17/+12
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>
2011-07-24ata: Convert dev_printk(KERN_<LEVEL> to dev_<level>(Joe Perches1-9/+5
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>
2011-03-31Fix common misspellingsLucas De Marchi1-2/+2
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-18Merge branch 'next' of ↵Linus Torvalds1-7/+18
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (62 commits) powerpc/85xx: Fix signedness bug in cache-sram powerpc/fsl: 85xx: document cache sram bindings powerpc/fsl: define binding for fsl mpic interrupt controllers powerpc/fsl_msi: Handle msi-available-ranges better drivers/serial/ucc_uart.c: Add of_node_put to avoid memory leak powerpc/85xx: Fix SPE float to integer conversion failure powerpc/85xx: Update sata controller compatible for p1022ds board ATA: Add FSL sata v2 controller support powerpc/mpc8xxx_gpio: simplify searching for 'fsl, qoriq-gpio' compatiable powerpc/8xx: remove obsolete mgsuvd board powerpc/82xx: rename and update mgcoge board support powerpc/83xx: rename and update kmeter1 powerpc/85xx: Workaroudn e500 CPU erratum A005 powerpc/fsl_pci: Add support for FSL PCIe controllers v2.x powerpc/85xx: Fix writing to spin table 'cpu-release-addr' on ppc64e powerpc/pseries: Disable MSI using new interface if possible powerpc: Enable GENERIC_HARDIRQS_NO_DEPRECATED. powerpc: core irq_data conversion. powerpc: sysdev/xilinx_intc irq_data conversion. powerpc: sysdev/uic irq_data conversion. ... Fix up conflicts in arch/powerpc/sysdev/fsl_msi.c (due to getting rid of of_platform_driver in arch/powerpc)
2011-03-17Merge branch 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds1-5/+4
* 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6: (21 commits) tty: serial: altera_jtaguart: Add device tree support tty: serial: altera_uart: Add devicetree support dt: eliminate of_platform_driver shim code dt: Eliminate of_platform_{,un}register_driver dt/serial: Eliminate users of of_platform_{,un}register_driver dt/usb: Eliminate users of of_platform_{,un}register_driver dt/video: Eliminate users of of_platform_{,un}register_driver dt/net: Eliminate users of of_platform_{,un}register_driver dt/sound: Eliminate users of of_platform_{,un}register_driver dt/spi: Eliminate users of of_platform_{,un}register_driver dt: uartlite: merge platform and of_platform driver bindings dt: xilinx_hwicap: merge platform and of_platform driver bindings ipmi: convert OF driver to platform driver leds/leds-gpio: merge platform_driver with of_platform_driver dt/sparc: Eliminate users of of_platform_{,un}register_driver dt/powerpc: Eliminate users of of_platform_{,un}register_driver dt/powerpc: move of_bus_type infrastructure to ibmebus drivercore/dt: add a match table pointer to struct device dt: Typo fix. altera_ps2: Add devicetree support ...
2011-03-15ATA: Add FSL sata v2 controller supportXulei1-7/+18
In FSL sata v2 block, the snoop bit of PRDT Word3 description information is at bit28 instead of bit22. This patch adds FSL sata v2 probe and resolve this difference. Signed-off-by: Lei Xu <B33228@freescale.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-03-14sata_fsl: Update RX_WATER_MARK for TRANSCFGPrabhakar Kushwaha1-0/+12
RX_WATER_MARK sets the number of locations in Rx FIFO that can be used before the transport layer instructs the link layer to transmit HOLDS. Note that it can take some time for the HOLDs to get to the other end, and that in the interim there must be enough room in the FIFO to absorb all data that could arrive. Update the new recommended value to 16. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-03-14sata_fsl: Fix wrong Device Error Register usagePrabhakar Kushwaha1-2/+5
When a single device error is detected, the device under the error is indicated by the error bit set in the DER. There is a one to one mapping between register bit and devices on Port multiplier(PMP) i.e. bit 0 represents PMP device 0 and bit 1 represents PMP device 1 etc. Current implementation treats Device error register value as device number not set of bits representing multiple device on PMP. It is changed to consider bit level. No need to check for each set bit as all command is going to be aborted. Signed-off-by: Ashish Kalra <B00888@freescale.com> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-03-02libata: remove ATA_FLAG_NO_LEGACYSergei Shtylyov1-3/+2
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 Shtylyov1-2/+2
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>
2011-02-28dt: Eliminate of_platform_{,un}register_driverGrant Likely1-5/+4
Final step to eliminate of_platform_bus_type. They're all just platform drivers now. v2: fix type in pasemi_nand.c (thanks to Stephen Rothwell) Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-10-22libata: add @ap to ata_wait_register() and introduce ata_msleep()Tejun Heo1-9/+10
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>
2010-10-22libata: always use ata_qc_complete_multiple() for NCQ command completionsTejun Heo1-6/+2
Currently, sata_fsl, mv and nv call ata_qc_complete() multiple times from their interrupt handlers to indicate completion of NCQ commands. This limits the visibility the libata core layer has into how commands are being executed and completed, which is necessary to support IRQ expecting in generic way. libata already has an interface to complete multiple commands at once - ata_qc_complete_multiple() which ahci and sata_sil24 already use. This patch updates the three drivers to use ata_qc_complete_multiple() too and updates comments on ata_qc_complete[_multiple]() regarding their usages with NCQ completions. This change not only provides better visibility into command execution to the core layer but also simplifies low level drivers. * sata_fsl: It already builds done_mask. Conversion is straight forward. * sata_mv: mv_process_crpb_response() no longer checks for illegal completions, it just returns whether the tag is completed or not. mv_process_crpb_entries() builds done_mask from it and passes it to ata_qc_complete_multiple() which will check for illegal completions. * sata_nv adma: Similar to sata_mv. nv_adma_check_cpb() now just returns the tag status and nv_adma_interrupt() builds done_mask from it and passes it to ata_qc_complete_multiple(). * sata_nv swncq: It already builds done_mask. Drop unnecessary illegal transition checks and call ata_qc_complete_multiple(). In the long run, it might be a good idea to make ata_qc_complete() whine if called when multiple NCQ commands are in flight. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Ashish Kalra <ashish.kalra@freescale.com> Cc: Saeed Bishara <saeed@marvell.com> Cc: Mark Lord <liml@rtr.ca> Cc: Robert Hancock <hancockr@shaw.ca> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-08-12Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds1-4/+4
* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: mmc_spi: Fix unterminated of_match_table of/sparc: fix build regression from of_device changes of/device: Replace struct of_device with struct platform_device
2010-08-06of/device: Replace struct of_device with struct platform_deviceGrant Likely1-4/+4
of_device is just an alias for platform_device, so remove it entirely. Also replace to_of_device() with to_platform_device() and update comment blocks. This patch was initially generated from the following semantic patch, and then edited by hand to pick up the bits that coccinelle didn't catch. @@ @@ -struct of_device +struct platform_device Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Reviewed-by: David S. Miller <davem@davemloft.net>
2010-08-02sata_fsl,mv,nv: prepare for NCQ command completion updateTejun Heo1-10/+10
Make the following changes to prepare for NCQ command completion update. Changes made by this patch don't cause any functional difference. * sata_fsl_host_intr(): rename the local variable qc_active to done_mask as that's what it is. * mv_process_crpb_response(): restructure if clause for easier update. * nv_adma_interrupt(): drop unnecessary error variable. * nv_swncq_sdbfis(): drop unnecessary nr_done and return 0 on success. Typo fix. * nv_swncq_dmafis(): drop unused return value and return void. * nv_swncq_host_interrupt(): drop unnecessary return value handling. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Ashish Kalra <ashish.kalra@freescale.com> Cc: Saeed Bishara <saeed@marvell.com> Cc: Mark Lord <liml@rtr.ca> Cc: Robert Hancock <hancockr@shaw.ca> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-05-22of: Remove duplicate fields from of_platform_driverGrant Likely1-2/+5
.name, .match_table and .owner are duplicated in both of_platform_driver and device_driver. This patch is a removes the extra copies from struct of_platform_driver and converts all users to the device_driver members. This patch is a pretty mechanical change. The usage model doesn't change and if any drivers have been missed, or if anything has been fixed up incorrectly, then it will fail with a compile time error, and the fixup will be trivial. This patch looks big and scary because it touches so many files, but it should be pretty safe. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Sean MacLennan <smaclennan@pikatech.com>
2010-05-19of: Always use 'struct device.of_node' to get device node pointer.Grant Likely1-2/+2
The following structure elements duplicate the information in 'struct device.of_node' and so are being eliminated. This patch makes all readers of these elements use device.of_node instead. (struct of_device *)->node (struct dev_archdata *)->prom_node (sparc) (struct dev_archdata *)->of_node (powerpc & microblaze) Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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>
2009-12-10Merge branch 'for-linus' of ↵Linus Torvalds1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (42 commits) tree-wide: fix misspelling of "definition" in comments reiserfs: fix misspelling of "journaled" doc: Fix a typo in slub.txt. inotify: remove superfluous return code check hdlc: spelling fix in find_pvc() comment doc: fix regulator docs cut-and-pasteism mtd: Fix comment in Kconfig doc: Fix IRQ chip docs tree-wide: fix assorted typos all over the place drivers/ata/libata-sff.c: comment spelling fixes fix typos/grammos in Documentation/edac.txt sysctl: add missing comments fs/debugfs/inode.c: fix comment typos sgivwfb: Make use of ARRAY_SIZE. sky2: fix sky2_link_down copy/paste comment error tree-wide: fix typos "couter" -> "counter" tree-wide: fix typos "offest" -> "offset" fix kerneldoc for set_irq_msi() spidev: fix double "of of" in comment comment typo fix: sybsystem -> subsystem ...
2009-12-07Merge branch 'for-next' into for-linusJiri Kosina1-3/+3
Conflicts: kernel/irq/chip.c
2009-12-04tree-wide: fix assorted typos all over the placeAndré Goddard Rosa1-3/+3
That is "success", "unknown", "through", "performance", "[re|un]mapping" , "access", "default", "reasonable", "[con]currently", "temperature" , "channel", "[un]used", "application", "example","hierarchy", "therefore" , "[over|under]flow", "contiguous", "threshold", "enough" and others. Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-12-03sata_fsl: Add asynchronous notification supportashish kalra1-8/+10
Enable device hot-plug support on Port multiplier fan-out ports Signed-off-by: Ashish Kalra <Ashish.Kalra@freescale.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-11-20sata_fsl: Split hard and soft resetJiang Yutang1-40/+44
Split sata_fsl_softreset() into hard and soft resets to make error-handling more efficient & device and PMP detection more reliable. Also includes fix for PMP support, driver tested with Sil3726, Sil4726 & Exar PMP controllers. [AV: Also fixes resuming from deep sleep on MPC8315 CPUs] Signed-off-by: Jiang Yutang <b14898@freescale.com> Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-09-09sata_fsl: Defer non-ncq commands when ncq commands activeAshish Kalra1-0/+1
Fix for non-ncq & ncq commands causing timeouts when both are issued simultaneously to the same device. Signed-off-by: Ashish Kalra <Ashish.Kalra@freescale.com> [fixed to be actual compileable C code -jg] Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-06-23sata_fsl: Add power mgmt supportDave Liu1-0/+35
Signed-off-by: Dave Liu <daveliu@freescale.com> Signed-off-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-05-15sata_fsl: Fix the command description of FSL SATA controllerDave Liu1-3/+5
The bit 11 of command description is reserved bit in Freescale SATA controller and needs to be set to '1'. This is needed to make sure the last write from the controller to the buffer descriptor is seen before an interrupt is raised. Signed-off-by: Dave Liu <daveliu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-05-15sata_fsl: Fix compile warningsKumar Gala1-3/+4
We we build with dma_addr_t as a 64-bit quantity we get: drivers/ata/sata_fsl.c: In function 'sata_fsl_fill_sg': drivers/ata/sata_fsl.c:340: warning: format '%x' expects type 'unsigned int', but argument 4 has type 'dma_addr_t' Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-03-25[libata] convert drivers to use ata.h mode mask definesErik Inge Bolsø1-2/+2
No functional changes in this patch. Signed-off-by: Erik Inge Bolsø <knan-lkml@anduin.net> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-01-16sata_fsl: Return non-zero on error in probe()Michal Sojka1-1/+1
while I was looking over kernel sources I've found this small bug. Formerly, zero was returned even if an error happened. Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-09-29libata: make SCR access ops per-linkTejun Heo1-13/+13
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>
2008-05-30[libata] sata_fsl: Fix broken driver, add port multiplier (PMP) supportAshish Kalra1-61/+163
The following commit (4c9bf4e799ce06a7378f1196587084802a414c03): libata: replace tf_read with qc_fill_rtf for non-SFF drivers Broke the sata_fsl.c driver in 2.6.26-rc. I know the following patch fixes the issue, it clearly also adds port multipler support. The current 2.6.26-rc driver is broken. On boot with debug enabled we get something like (w/o this patch): spurious interrupt!!, CC = 0x1 interrupt status 0x1 xx_scr_read, reg_in = 1 spurious interrupt!!, CC = 0x1 interrupt status 0x1 xx_scr_read, reg_in = 1 spurious interrupt!!, CC = 0x1 interrupt status 0x1 xx_scr_read, reg_in = 1 .. continues for ever. This change fixes this as a side effect of adding port multiplier support. Signed-off-by: Ashish Kalra <ashish.kalra@freescale.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-04-28typo in sata_fslAl Viro1-1/+1
it's ata_link, not ata_linke Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-17libata: move link onlineness check out of softreset methodsTejun Heo1-0/+10
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: don't use ap->ioaddr in non-SFF driversTejun Heo1-5/+0
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 Heo1-56/+4
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 Heo1-9/+15
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: 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>
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-29 16:36:45 +0300