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2016-12-13Merge branch 'for-4.10' of ↵Linus Torvalds2-20/+31
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull another libata patch from Tejun Heo: "One more patch from Adam added. It makes libata skip probing for NCQ prio unless the feature is explicitly requested by the user. This is necessary because some controllers lock up after the optional feature is probed" * 'for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: ata: avoid probing NCQ Prio Support if not explicitly requested
2016-12-13ata: avoid probing NCQ Prio Support if not explicitly requestedAdam Manzanares2-20/+31
Previously, when the ata device was being initialized we were probing for NCQ prio support by checking the identify information and also checking the log page that holds information about ncq prio support. This caused an error on an Intel HBA so the code is now updated to only probe for NCQ prio support when the sysfs variable controlling NCQ prio support is enabled. tj: Update formatting, switch to spin_[un]lock_irq() and update locking a bit, use REVALIDATE instead of RESET, and return -EIO instead of -EINVAL on config failure. Signed-off-by: Adam Manzanares <adam.manzanares@wdc.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-12-13Merge branch 'for-4.10' of ↵Linus Torvalds7-31/+224
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata updates from Tejun Heo: - Adam added opt-in ATA command priority support. - There are machines which hide multiple nvme devices behind an ahci BAR. Dan Williams proposed a solution to force-switch the mode but deemed too hackishd. People are gonna discuss the proper way to handle the situation in nvme standard meetings. For now, detect and warn about the situation. - Low level driver specific changes. Christoph Hellwig pipes in about the hidden nvme warning: "I wish that was the case. We've pretty much agreed that we'll want to implement it as a virtual PCIe root bridge, similar to Intels other 'innovation' VMD that we work around that way. But Intel management has apparently decided that they don't want to spend more cycles on this now that Lenovo has an optional BIOS that doesn't force this broken mode anymore, and no one outside of Intel has enough information to implement something like this. So for now I guess this warning is it, until Intel reconsideres and spends resources on fixing up the damage their Chipset people caused" * 'for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: ahci: warn about remapped NVMe devices ahci-remap.h: add ahci remapping definitions nvme: move NVMe class code to pci_ids.h pata: imx: support controller modes up to PIO4 pata: imx: add support of setting timings for PIO modes pata: imx: set controller PIO mode with .set_piomode callback pata: imx: sort headers out ata: set ncq_prio_enabled iff device has support ata: ATA Command Priority Disabled By Default ata: Enabling ATA Command Priorities block: Add iocontext priority to request ahci: qoriq: added ls1046a platform support
2016-12-12Merge tag 'docs-4.10' of git://git.lwn.net/linuxLinus Torvalds1-1/+1
Pull documentation update from Jonathan Corbet: "These are the documentation changes for 4.10. It's another busy cycle for the docs tree, as the sphinx conversion continues. Highlights include: - Further work on PDF output, which remains a bit of a pain but should be more solid now. - Five more DocBook template files converted to Sphinx. Only 27 to go... Lots of plain-text files have also been converted and integrated. - Images in binary formats have been replaced with more source-friendly versions. - Various bits of organizational work, including the renaming of various files discussed at the kernel summit. - New documentation for the device_link mechanism. ... and, of course, lots of typo fixes and small updates" * tag 'docs-4.10' of git://git.lwn.net/linux: (193 commits) dma-buf: Extract dma-buf.rst Update Documentation/00-INDEX docs: 00-INDEX: document directories/files with no docs docs: 00-INDEX: remove non-existing entries docs: 00-INDEX: add missing entries for documentation files/dirs docs: 00-INDEX: consolidate process/ and admin-guide/ description scripts: add a script to check if Documentation/00-INDEX is sane Docs: change sh -> awk in REPORTING-BUGS Documentation/core-api/device_link: Add initial documentation core-api: remove an unexpected unident ppc/idle: Add documentation for powersave=off Doc: Correct typo, "Introdution" => "Introduction" Documentation/atomic_ops.txt: convert to ReST markup Documentation/local_ops.txt: convert to ReST markup Documentation/assoc_array.txt: convert to ReST markup docs-rst: parse-headers.pl: cleanup the documentation docs-rst: fix media cleandocs target docs-rst: media/Makefile: reorganize the rules docs-rst: media: build SVG from graphviz files docs-rst: replace bayer.png by a SVG image ...
2016-12-07libata-scsi: disable SCT Write Same for the momentNicolai Stange1-0/+1
SCT Write Same support had been introduced with commit 7b2030942859 ("libata: Add support for SCT Write Same") Some problems, namely excessive userspace segfaults, had been reported at http://lkml.kernel.org/r/20160908192736.GA4356@gmail.com This lead to commit 0ce1b18c42a5 ("libata: Some drives failing on SCT Write Same") which strived to disable SCT Write Same on !ZAC devices. Due to the way this was done and to the logic in sd_config_write_same(), this didn't work for those devices that have ->max_ws_blocks > SD_MAX_WS10_BLOCKS: for these, ->no_write_same and ->max_write_same_sectors would still be non-zero, but ->ws10 == ->ws16 == 0. This would cause sd_setup_write_same_cmnd() to demultiplex REQ_OP_WRITE_SAME requests to WRITE_SAME, and these in turn aren't supported by libata-scsi: EXT4-fs (dm-1): Delayed block allocation failed for inode 2625094 at logical offset 2032 with max blocks 2 with error 121 EXT4-fs (dm-1): This should not happen!! Data will be lost 121 == EREMOTEIO is what scsi_io_completion() asserts in case of invalid opcodes. Back to the original problem of userspace segfaults: this can be tracked down to ata_format_sct_write_same() overwriting the input page. Sometimes, this page is ZERO_PAGE(0) which ceases to be filled with zeros from that point on. Since ZERO_PAGE(0) is used for userspace .bss mappings, code of the following is doomed: static char *a = NULL; /* .bss */ ... if (a) *a = 'a'; This problem is not solved by disabling SCT Write Same for !ZAC devices only. It can certainly be fixed, but the final release is quite close -- so disable SCT Write Same for all ATA devices rather than introducing some SCT key buffer allocation schemes at this point. Fixes: 7b2030942859 ("libata: Add support for SCT Write Same") Signed-off-by: Nicolai Stange <nicstange@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-12-05ahci: warn about remapped NVMe devicesChristoph Hellwig1-0/+39
Some Intel ahci implementations have a completely broken remapping mode where they hide one or more NVMe devices behind the bar of an AHCI device. Intel refuses to let the OS reprogram the BIOS to switch out of this mode at runtime, and so far we're not come up with another good way to undo the mess that the Chipset people created. So for now the only thing we can do is to alert users about this situation and switch to the faster and much saner so called "AHCI" mode insted of the RAID mode in the BIOS so that the BIOS does not hide the NVMe devices from us. The sitation is even worse as at least one vendor (thanks a lot Lenovo..) has started hardcoding their BIOS into the "RAID" mode even for laptops that don't use AHCI _at all_ and just have a single NVMe device. For now there is an unspported Linux-only BIOS that undoes this braindamage, but we'll have to see if things are getting better or worse from here. Based on an earlier patch from Dan Williams <dan.j.williams@intel.com>. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-11-29ata: sata_mv: check for errors when parsing nr-ports from dtUwe Kleine-König1-1/+14
If the nr-ports property is missing ata_host_alloc_pinfo is called with n_ports = 0. This results in host->ports[0] = NULL which later makes mv_init_host() oops when dereferencing this pointer. Instead be a bit more cooperative and fail the probing with an error message. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-11-21ahci: always fall back to single-MSI modeChristoph Hellwig1-7/+0
Don't try to guess what the errors from pci_irq_alloc_vectors mean, as that's too fragile. Instead always try allocating a single vector when multi-MSI mode fails. This makes various intel Desktop and Laptop CPUs use MSI again. Signed-off-by: Christoph Hellwig <hch@lst.de> Reported-by: Michael Marley <michael@michaelmarley.com> Tested-by: Michael Marley <michael@michaelmarley.com> Fixes: 0b9e2988ab22 ("ahci: use pci_alloc_irq_vectors") Signed-off-by: Tejun Heo <tj@kernel.org>
2016-11-18Merge tag 'v4.9-rc4' into soundJonathan Corbet1-19/+22
Bring in -rc4 patches so I can successfully merge the sound doc changes.
2016-11-09pata: imx: support controller modes up to PIO4Vladimir Zapolskiy1-1/+1
Having timing settings for all supported by the controller PIO modes now it is possible to expand its PIO mask. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-11-09pata: imx: add support of setting timings for PIO modesVladimir Zapolskiy1-1/+46
The controller is capable to operate in up to PIO4 mode, however before the change the driver relies on timing settings done by a bootloader for PIO0 mode only. The change adds more flexibility in PIO mode selection at runtime and makes the driver to work even if bootloader does not preset ATA timings. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-11-09pata: imx: set controller PIO mode with .set_piomode callbackVladimir Zapolskiy1-19/+8
Convert .set_mode callback function to more specific .set_piomode, the driver does not have support of DMA modes, thus a simpler version of the callback is preferred. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-11-09pata: imx: sort headers outVladimir Zapolskiy1-5/+3
Put headers in alphabetic order and remove redundant ones. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-11-01libata-scsi: Fixup ata_gen_passthru_sense()Hannes Reinecke1-1/+1
There's a typo in ata_gen_passthru_sense(), where the first byte would be overwritten incorrectly later on. Reported-by: Charles Machalow <csm10495@gmail.com> Signed-off-by: Hannes Reinecke <hare@suse.com> Fixes: 11093cb1ef56 ("libata-scsi: generate correct ATA pass-through sense") Cc: stable@vger.kernel.org # v4.7+ Signed-off-by: Tejun Heo <tj@kernel.org>
2016-10-25ahci: fix the single MSI-X case in ahci_init_oneChristoph Hellwig1-1/+1
We need to make sure hpriv->irq is set properly if we don't use per-port vectors, so switch from blindly assigning pdev->irq to using pci_irq_vector, which handles all interrupt types correctly. Signed-off-by: Christoph Hellwig <hch@lst.de> Reported-by: Robert Richter <robert.richter@cavium.com> Tested-by: Robert Richter <robert.richter@cavium.com> Tested-by: David Daney <ddaney.cavm@gmail.com> Fixes: 0b9e2988ab22 ("ahci: use pci_alloc_irq_vectors") Signed-off-by: Tejun Heo <tj@kernel.org>
2016-10-24docs: fix locations of several documents that got movedMauro Carvalho Chehab1-1/+1
The previous patch renamed several files that are cross-referenced along the Kernel documentation. Adjust the links to point to the right places. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-20ahci: fix nvec checkChristoph Hellwig1-7/+7
commit 17a51f12 ("ahci: only try to use multi-MSI mode if there is more than 1 port") lead to a case where nvec isn't initialized before it's used. Fix this by moving the check into the n_ports conditional. Reported-and-reviewed-by Colin Ian King <colin.king@canonical.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-10-20ata: set ncq_prio_enabled iff device has supportAdam Manzanares2-4/+9
We previously had a check to see if the device has support for prioritized ncq commands and a check to see if a device flag is set, through a sysfs variable, in order to send a prioritized command. This patch only allows the sysfs variable to be set if the device supports prioritized commands enabling one check in ata_build_rw_tf in order to determine whether or not to send a prioritized command. This patch depends on ata: ATA Command Priority Disabled By Default tj: Minor subject and formatting updates. Signed-off-by: Adam Manzanares <adam.manzanares@wdc.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-10-19ata: ATA Command Priority Disabled By DefaultAdam Manzanares3-1/+71
Add a sysfs entry to turn on priority information being passed to a ATA device. By default this feature is turned off. This patch depends on ata: Enabling ATA Command Priorities tj: Renamed ncq_prio_on to ncq_prio_enable and removed trivial ata_ncq_prio_on() and open-coded the test. Signed-off-by: Adam Manzanares <adam.manzanares@hgst.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-10-19ata: Enabling ATA Command PrioritiesAdam Manzanares3-3/+40
This patch checks to see if an ATA device supports NCQ command priorities. If so and the user has specified an iocontext that indicates IO_PRIO_CLASS_RT then we build a tf with a high priority command. This is done to improve the tail latency of commands that are high priority by passing priority to the device. tj: Removed trivial ata_ncq_prio_enabled() and open-coded the test. Signed-off-by: Adam Manzanares <adam.manzanares@hgst.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-10-19ahci: qoriq: added ls1046a platform supportTang Yuantian1-3/+13
Ls1046a is a new introduced soc which supports ATA3.0. Signed-off-by: Tang Yuantian <yuantian.tang@nxp.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-10-19ahci: only try to use multi-MSI mode if there is more than 1 portChristoph Hellwig1-14/+17
We should only try to allocate multiple MSI or MSI-X vectors if the device actually has multiple ports. Otherwise pci_alloc_irq_vectors will return a single vector due to n_ports = 1, in which case we shouldn't set the AHCI_HFLAG_MULTI_MSI flag. Signed-off-by: Christoph Hellwig <hch@lst.de> Fixes: 0b9e2988 ("ahci: use pci_alloc_irq_vectors") Reported-by: Emmanuel Benisty <benisty.e@gmail.com> Tested-by: Emmanuel Benisty <benisty.e@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-09-30ahci: qoriq: Revert "ahci: qoriq: Disable NCQ on ls2080a SoC"Tang Yuantian1-7/+1
This reverts commit 640847298e2b7f19 ("ahci: qoriq: Disable NCQ on ls2080a SoC") The erratum has been fixed in ls2080a v2.0 and later soc. In reality, customer will not get any ls2080a v1.0 soc. Neither apply to any products. So reverting this commit won't create any side effect. Blacklisting v2.0 could also be a option, but that needs to check the soc version which is not suitable in the driver. Signed-off-by: Tang Yuantian <yuantian.tang@nxp.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-09-22pata_at91: Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERRHarman Kalra1-3/+1
Signed-off-by: Harman Kalra <harman4linux@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-09-22ata: Replace BUG() with BUG_ON().Harman Kalra1-2/+1
Replace BUG() with BUG_ON(). Caught by coccinelle. Signed-off-by: Harman Kalra <harman4linux@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-09-20ata: sata_mv: Replacing dma_pool_alloc and memset with a single call ↵Harman Kalra1-4/+2
dma_pool_zalloc. Replacing dma_pool_alloc and memset with a single call to dma_pool_zalloc Signed-off-by: Harman Kalra <harman4linux@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-09-09libata: Some drives failing on SCT Write SameShaun Tancheff1-3/+3
Restrict support SCT Write Same to devices which also support ZAC where support is required. Reported-by: Mike Krinkin <krinkin.m.u@gmail.com> Signed-off-by: Shaun Tancheff <shaun.tancheff@seagate.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-09-06ahci: use pci_alloc_irq_vectorsChristoph Hellwig3-139/+45
Use the new pci_alloc_irq_vectors API to allocate MSI-X and MSI vectors. The big advantage over the old code is that we can use the same API for MSI and MSI-X, and that we don't need to store the MSI-X vector mapping in driver-private data structures. This first conversion keeps the probe order as-is: MSI-X multi vector, MSI multi vector, MSI single vector, MSI-X single vector and last a single least legacy interrupt line. There is one small change of behavior: we now check the "MSI Revert to Single Message" flag for MSI-X in addition to MSI. Because the API to find the Linux IRQ number for a MSI/MSI-X vector is PCI specific, but libahaci is bus-agnostic I had to a get_irq_vector function pointer to struct ahci_host_priv. The alternative would be to move the multi-vector case of ahci_host_activate to ahci.c and just call ata_host_activate directly from the others users of ahci_host_activate. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-09-06Merge branch 'master' into for-4.9Tejun Heo2-2/+2
2016-08-30pata_ninja32: Avoid corrupting status flagsAlan Cox1-1/+1
Ninja32 needs to set some flags to indicate it does 32bit IO. However it currently assigns this which loses the initializing flag and causes a warning spew. Fix it to use a logical or as is intended. Signed-off-by: Alan Cox <alan@linux.intel.com> Tested-by: Ellmar Stelnberger <estellnb@elstel.org> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-08-25libata: SCT Write Same handle ATA_DFLAG_PIOShaun Tancheff1-0/+2
Use non DMA write log when ATA_DFLAG_PIO is set. Signed-off-by: Shaun Tancheff <shaun.tancheff@seagate.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Acked-by: Tejun Heo <tj@kernel.org>
2016-08-25libata: SCT Write Same / DSM TrimShaun Tancheff1-28/+57
Correct handling of devices with sector_size other that 512 bytes. In the case of a 4Kn device sector_size it is possible to describe a much larger DSM Trim than the current fixed default of 512 bytes. This patch assumes the minimum descriptor is sector_size and fills out the descriptor accordingly. The ACS-2 specification is quite clear that the DSM command payload is sized as number of 512 byte transfers so a 4Kn device will operate correctly without this patch. Signed-off-by: Shaun Tancheff <shaun.tancheff@seagate.com> Acked-by: Tejun Heo <tj@kernel.org>
2016-08-25libata: Add support for SCT Write SameShaun Tancheff1-29/+170
SATA drives may support write same via SCT. This is useful for setting the drive contents to a specific pattern (0's). Translate a SCSI WRITE SAME 16 command to be either a DSM TRIM command or an SCT Write Same command. Based on the UNMAP flag: - When set translate to DSM TRIM - When not set translate to SCT Write Same Signed-off-by: Shaun Tancheff <shaun.tancheff@seagate.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Acked-by: Tejun Heo <tj@kernel.org>
2016-08-25libata: Safely overwrite attached page in WRITE SAME xlatShaun Tancheff1-5/+51
Safely overwriting the attached page to ATA format from the SCSI formatted variant. Signed-off-by: Shaun Tancheff <shaun.tancheff@seagate.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Acked-by: Tejun Heo <tj@kernel.org>
2016-08-11ahci: disable correct irq for dummy portsChristoph Hellwig1-1/+1
irq already contains the interrupt number for the port, don't add the port index to it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org> Fixes: d684a90d38e2 ("ahci: per-port msix support") Cc: stable@vger.kernel.org v4.5+
2016-08-11ahci: also use a per-port lock for the multi-MSIX caseChristoph Hellwig1-1/+1
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-08-10ahci: st: Add ports-implemented property in supportPatrice Chotard1-0/+4
Despite ST AHCI version = 1.3, reading HOST_PORTS_IMPL returns 0. So force_port_map to 1 by using ports-implemented DT property. Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-08-10ahci: qoriq: enable snoopable sata read and writeTang Yuantian1-0/+6
By default the SATA IP on the qoriq SoCs does not generating coherent/snoopable transactions. This patch enable it in the sata axicc register. In addition, the dma-coherent property must be set on the SATA controller nodes. Signed-off-by: Tang Yuantian <yuantian.tang@nxp.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-08-10ahci: qoriq: adjust sata parameterTang Yuantian1-6/+0
The default values for Port Phy2Cfg register and Port Phy3Cfg register are better, no need to overwrite them. Signed-off-by: Tang Yuantian <yuantian.tang@nxp.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-08-09libata-scsi: fix MODE SELECT translation for Control mode pageTom Yan1-2/+2
scsi_done() was called repeatedly and apparently because of that, the kernel would call trace when we touch the Control mode page: Call Trace: [<ffffffff812ea0d2>] dump_stack+0x63/0x81 [<ffffffff81079cfb>] __warn+0xcb/0xf0 [<ffffffff81079e2d>] warn_slowpath_null+0x1d/0x20 [<ffffffffa00f51b0>] ata_eh_finish+0xe0/0xf0 [libata] [<ffffffffa00fb830>] sata_pmp_error_handler+0x640/0xa50 [libata] [<ffffffffa00470ed>] ahci_error_handler+0x1d/0x70 [libahci] [<ffffffffa00f55f0>] ata_scsi_port_error_handler+0x430/0x770 [libata] [<ffffffffa00eff8d>] ? ata_scsi_cmd_error_handler+0xdd/0x160 [libata] [<ffffffffa00f59d7>] ata_scsi_error+0xa7/0xf0 [libata] [<ffffffffa00913ba>] scsi_error_handler+0xaa/0x560 [scsi_mod] [<ffffffffa0091310>] ? scsi_eh_get_sense+0x180/0x180 [scsi_mod] [<ffffffff81098eb8>] kthread+0xd8/0xf0 [<ffffffff815d913f>] ret_from_fork+0x1f/0x40 [<ffffffff81098de0>] ? kthread_worker_fn+0x170/0x170 ---[ end trace 8b7501047e928a17 ]--- Removed the unnecessary code and let ata_scsi_translate() do the job. Also, since ata_mselect_control() has no ATA command to send to the device, ata_scsi_mode_select_xlat() should return 1 for it, so that ata_scsi_translate() will finish early to avoid ata_qc_issue(). Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-08-09libata-scsi: use u8 array to store mode page copyTom Yan1-2/+2
ata_mselect_*() would initialize a char array for storing a copy of the current mode page. However, char could be signed char. In that case, bytes larger than 127 would be converted to negative number. For example, 0xff from def_control_mpage[] would become -1. This prevented ata_mselect_control() from working at all, since when it did the read-only bits check, there would always be a mismatch. Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-27Merge tag 'leds_for_4.8' of ↵Linus Torvalds1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds Pull LED updates from Jacek Anaszewski: "New LED class driver: - LED driver for TI LP3952 6-Channel Color LED LED core improvements: - Only descend into leds directory when CONFIG_NEW_LEDS is set - Add no-op gpio_led_register_device when LED subsystem is disabled - MAINTAINERS: Add file patterns for led device tree bindings LED Trigger core improvements: - return error if invalid trigger name is provided via sysfs LED class drivers improvements - is31fl32xx: define complete i2c_device_id table - is31fl32xx: fix typo in id and match table names - leds-gpio: Set of_node for created LED devices - pca9532: Add device tree support Conversion of IDE trigger to common disk trigger: - leds: convert IDE trigger to common disk trigger - leds: documentation: 'ide-disk' to 'disk-activity' - unicore32: use the new LED disk activity trigger - parisc: use the new LED disk activity trigger - mips: use the new LED disk activity trigger - arm: use the new LED disk activity trigger - powerpc: use the new LED disk activity trigger" * tag 'leds_for_4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: leds: is31fl32xx: define complete i2c_device_id table leds: is31fl32xx: fix typo in id and match table names leds: LED driver for TI LP3952 6-Channel Color LED leds: leds-gpio: Set of_node for created LED devices leds: triggers: return error if invalid trigger name is provided via sysfs leds: Only descend into leds directory when CONFIG_NEW_LEDS is set leds: Add no-op gpio_led_register_device when LED subsystem is disabled unicore32: use the new LED disk activity trigger parisc: use the new LED disk activity trigger mips: use the new LED disk activity trigger arm: use the new LED disk activity trigger powerpc: use the new LED disk activity trigger leds: documentation: 'ide-disk' to 'disk-activity' leds: convert IDE trigger to common disk trigger leds: pca9532: Add device tree support MAINTAINERS: Add file patterns for led device tree bindings
2016-07-26Merge branch 'for-4.8/core' of git://git.kernel.dk/linux-blockLinus Torvalds1-1/+1
Pull core block updates from Jens Axboe: - the big change is the cleanup from Mike Christie, cleaning up our uses of command types and modified flags. This is what will throw some merge conflicts - regression fix for the above for btrfs, from Vincent - following up to the above, better packing of struct request from Christoph - a 2038 fix for blktrace from Arnd - a few trivial/spelling fixes from Bart Van Assche - a front merge check fix from Damien, which could cause issues on SMR drives - Atari partition fix from Gabriel - convert cfq to highres timers, since jiffies isn't granular enough for some devices these days. From Jan and Jeff - CFQ priority boost fix idle classes, from me - cleanup series from Ming, improving our bio/bvec iteration - a direct issue fix for blk-mq from Omar - fix for plug merging not involving the IO scheduler, like we do for other types of merges. From Tahsin - expose DAX type internally and through sysfs. From Toshi and Yigal * 'for-4.8/core' of git://git.kernel.dk/linux-block: (76 commits) block: Fix front merge check block: do not merge requests without consulting with io scheduler block: Fix spelling in a source code comment block: expose QUEUE_FLAG_DAX in sysfs block: add QUEUE_FLAG_DAX for devices to advertise their DAX support Btrfs: fix comparison in __btrfs_map_block() block: atari: Return early for unsupported sector size Doc: block: Fix a typo in queue-sysfs.txt cfq-iosched: Charge at least 1 jiffie instead of 1 ns cfq-iosched: Fix regression in bonnie++ rewrite performance cfq-iosched: Convert slice_resid from u64 to s64 block: Convert fifo_time from ulong to u64 blktrace: avoid using timespec block/blk-cgroup.c: Declare local symbols static block/bio-integrity.c: Add #include "blk.h" block/partition-generic.c: Remove a set-but-not-used variable block: bio: kill BIO_MAX_SIZE cfq-iosched: temporarily boost queue priority for idle classes block: drbd: avoid to use BIO_MAX_SIZE block: bio: remove BIO_MAX_SECTORS ...
2016-07-26Merge branch 'for-4.8' of ↵Linus Torvalds14-76/+129
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata updates from Tejun Heo: "libata saw quite a bit of activities in this cycle: - SMR drive support still being worked on - bug fixes and improvements to misc SCSI command emulation - some low level driver updates" * 'for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (39 commits) libata-scsi: better style in ata_msense_*() AHCI: Clear GHC.IS to prevent unexpectly asserting INTx ata: sata_dwc_460ex: remove redundant dev_err call ata: define ATA_PROT_* in terms of ATA_PROT_FLAG_* libata: remove ATA_PROT_FLAG_DATA libata: remove ata_is_nodata ata: make lba_{28,48}_ok() use ATA_MAX_SECTORS{,_LBA48} libata-scsi: minor cleanup for ata_scsi_zbc_out_xlat libata-scsi: Fix ZBC management out command translation libata-scsi: Fix translation of REPORT ZONES command ata: Handle ATA NCQ NO-DATA commands correctly libata-eh: decode all taskfile protocols ata: fixup ATA_PROT_NODATA libsas: use ata_is_ncq() and ata_has_dma() accessors libata: use ata_is_ncq() accessors libata: return boolean values from ata_is_* libata-scsi: avoid repeated calculation of number of TRIM ranges libata-scsi: reject WRITE SAME (16) with n_block that exceeds limit libata-scsi: rename ata_msense_ctl_mode() to ata_msense_control() libata-scsi: fix D_SENSE bit relection in control mode page ...
2016-07-23Merge branch 'for-4.7-fixes' of ↵Linus Torvalds1-0/+6
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata fix from Tejun Heo: "Another fallout from max_sectors bump a couple years ago. The lite-on optical drive times out on large requests" * 'for-4.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: libata: LITE-ON CX1-JB256-HP needs lower max_sectors
2016-07-20libata-scsi: better style in ata_msense_*()Tom Yan1-6/+13
`changeable` is the "version" of mode page requested by the user. It will be less confusing/misleading if we do not check it "together" with the setting bits of the drive. Not to mention that we currently have ata_mselect_*() implemented in a way that each of them will serve exclusively a particular bit on each page. The old style will hence make the condition look even more unnecessarily arcane if the ata_msense_*() is reflecting more than one bit. Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-20AHCI: Clear GHC.IS to prevent unexpectly asserting INTxPang Raymond1-0/+8
Due to PCI subsystem behaviour, unloading AHCI driver will disable MSI and enable INTx. When HBA supports MSIx or Multiple MSI, Driver's irq handler doesn't clear GHC.IS register. It works well when reading or writing data and GHC.IS is always non-zero. But when unloading driver (or any other operation which causes disable MSIx and enable INTx), PCI subsystem uses config write(Rx04.bit10) to enable INTx. Because GHC.IS is non-zero, HBA will falsely assume some port needs interrupt service. Then it asserts INTx. To make things worse, when AHCI controller shares the same interrupt pin with other PCI device, that PCI device's ISR will be called and nobody de-asserts previous INTx. This patch clears GHC.IS in ahci_port_stop() even when using MSIx or MMSI to prevent this case. It ensures GHC.IS is zero before PCI subsystem enables INTx. tj: Minor updates to the comment. Signed-off-by: Raymond Pang <raymond_rule@hotmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-19ata: sata_dwc_460ex: remove redundant dev_err callWei Yongjun1-8/+2
There is a error message within devm_ioremap_resource already, so remove the dev_err call to avoid redundant error message. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-18ata: define ATA_PROT_* in terms of ATA_PROT_FLAG_*Christoph Hellwig1-1/+1
This avoid the need to always translate between the two in ata_prot_flags and generally cleans up the taskfile protocol usage. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-18libata: remove ata_is_nodataChristoph Hellwig1-1/+1
The only caller can just check for !ata_is_data instead. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
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