Six fixes, all of which appear to have user visible consequences. The
DMA one is a regression fix from the merge window and of the others,
four are driver specific and one specific to the target code.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Six fixes, all of which appear to have user visible consequences.
The DMA one is a regression fix from the merge window and of the
others, four are driver specific and one specific to the target code"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: Use explicit access size in ufshcd_dump_regs
scsi: tcmu: fix use after free
scsi: csiostor: fix NULL pointer dereference in csio_vport_set_state()
scsi: lpfc: nvmet: avoid hang / use-after-free when destroying targetport
scsi: lpfc: nvme: avoid hang / use-after-free when destroying localport
scsi: communicate max segment size to the DMA mapping code
When a host driver sets a maximum segment size we should not only propagate
that setting to the block layer, which can merge segments, but also to the
DMA mapping layer which can merge segments as well.
Fixes: 50c2e9107f ("scsi: introduce a max_segment_size host_template parameters")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
After commit 5d32a66541 (PCI/ACPI: Allow ACPI to be built without
CONFIG_PCI set) dependencies on CONFIG_PCI that previously were
satisfied implicitly through dependencies on CONFIG_ACPI have to be
specified directly. PATA_ACPI is a PCI device driver but the PCI
dependency has not been explicitly called out.
Fixes: 5d32a66541 ("PCI/ACPI: Allow ACPI to be built without CONFIG_PCI set")
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Sinan Kaya <okaya@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Merge tag 'for-linus-20190112' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- NVMe pull request from Christoph, with little fixes all over the map
- Loop caching fix for offset/bs change (Jaegeuk Kim)
- Block documentation tweaks (Jeff, Jon, Weiping, John)
- null_blk zoned tweak (John)
- ahch mvebu suspend/resume support. Should have gone into the merge
window, but there was some confusion on which tree had it. (Miquel)
* tag 'for-linus-20190112' of git://git.kernel.dk/linux-block: (22 commits)
ata: ahci: mvebu: request PHY suspend/resume for Armada 3700
ata: ahci: mvebu: add Armada 3700 initialization needed for S2RAM
ata: ahci: mvebu: do Armada 38x configuration only on relevant SoCs
ata: ahci: mvebu: remove stale comment
ata: libahci_platform: comply to PHY framework
loop: drop caches if offset or block_size are changed
block: fix kerneldoc comment for blk_attempt_plug_merge()
nvme: don't initlialize ctrl->cntlid twice
nvme: introduce NVME_QUIRK_IGNORE_DEV_SUBNQN
nvme: pad fake subsys NQN vid and ssvid with zeros
nvme-multipath: zero out ANA log buffer
nvme-fabrics: unset write/poll queues for discovery controllers
nvme-tcp: don't ask if controller is fabrics
nvme-tcp: remove dead code
nvme-pci: fix out of bounds access in nvme_cqe_pending
nvme-pci: rerun irq setup on IO queue init errors
nvme-pci: use the same attributes when freeing host_mem_desc_bufs.
nvme-pci: fix the wrong setting of nr_maps
block: doc: add slice_idle_us to bfq documentation
block: clarify documentation for blk_{start|finish}_plug
...
A feature has been added in the libahci driver: the possibility to set
a new flag in hpriv->flags to let the core handle PHY suspend/resume
automatically. Make use of this feature to make suspend to RAM work
with SATA drives on A3700.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
A3700 comphy initialization is done in the firmware (TF-A). Looking at
the SATA PHY initialization routine, there is a comment about "vendor
specific" registers. Two registers are mentioned. They are not
initialized there in the firmware because they are AHCI related, while
the firmware at this location does only PHY configuration. The
solution to avoid doing such initialization is relying on U-Boot.
While this work at boot time, U-Boot is definitely not going to run
during a resume after suspending to RAM.
Two possible solutions were considered:
* Fixing the firmware.
* Fixing the kernel driver.
The first solution would take ages to propagate, while the second
solution is easy to implement as the driver as been a little bit
reworked to prepare for such platform configuration. Hence, this patch
adds an Armada 3700 configuration function to set these two registers
both at boot time (in the probe) and after a suspend (in the resume
path).
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
At the beginning, only Armada 38x SoCs where supported by the
ahci_mvebu.c driver. Commit 15d3ce7b63 ("ata: ahci_mvebu: add
support for Armada 3700 variant") introduced Armada 3700 support. As
opposed to Armada 38x SoCs, the 3700 variants do not have to configure
mbus and the regret option. This patch took care of avoiding such
configuration when not needed in the probe function, but failed to do
the same in the resume path. While doing so looks harmless by
experience, let's clean the driver logic and avoid doing this useless
configuration with Armada 3700 SoCs.
Because the logic is very similar between these two places, it has
been decided to factorize this code and put it in a "Armada 38x
configuration function". This function is part of a new
(per-compatible) platform data structure, so that the addition of such
configuration function for Armada 3700 will be eased.
Fixes: 15d3ce7b63 ("ata: ahci_mvebu: add support for Armada 3700 variant")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
For Armada-38x (32-bit) SoCs, PM platform support has been added since:
commit 32f9494c9d ("ARM: mvebu: prepare pm-board.c for the
introduction of Armada 38x support")
commit 3cbd6a6ca8 ("ARM: mvebu: Add standby support")
For Armada 64-bit SoCs, like the A3700 also using this AHCI driver, PM
platform support has always existed.
There are even suspend/resume hooks in this driver since:
commit d6ecf15814 ("ata: ahci_mvebu: add suspend/resume support")
Remove the stale comment at the end of this driver stating that all
the above does not exist yet.
Fixes: d6ecf15814 ("ata: ahci_mvebu: add suspend/resume support")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Current implementation of the libahci does not take into account the
new PHY framework. Correct the situation by adding a call to
phy_set_mode() before phy_power_on().
PHYs should also be handled at suspend/resume time. For this, call
ahci_platform_enable/disable_phys() at suspend/resume_host() time. These
calls are guarded by a HFLAG (AHCI_HFLAG_SUSPEND_PHYS) that the user of
the libahci driver must set manually in hpriv->flags at probe time. This
is to avoid breaking users that have not been tested with this change.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Suggested-by: Grzegorz Jaszczyk <jaz@semihalf.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
We already need to zero out memory for dma_alloc_coherent(), as such
using dma_zalloc_coherent() is superflous. Phase it out.
This change was generated with the following Coccinelle SmPL patch:
@ replace_dma_zalloc_coherent @
expression dev, size, data, handle, flags;
@@
-dma_zalloc_coherent(dev, size, handle, flags)
+dma_alloc_coherent(dev, size, handle, flags)
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
[hch: re-ran the script on the latest tree]
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Merge tag 'for-4.21/libata-20190102' of git://git.kernel.dk/linux-block
Pull libata fix from Jens Axboe:
"This libata change missed the original libata pull request.
Just a single fix in here, fixing a missed reference drop"
* tag 'for-4.21/libata-20190102' of git://git.kernel.dk/linux-block:
ata: pata_macio: add of_node_put()
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Merge tag 'for-4.21/libata-20181221' of git://git.kernel.dk/linux-block
Pull libata updates from Jens Axboe:
"Here are the libata changes for this merge window. Nothing major in
here. This contains:
- GPIO descriptor conversions (Linus Walleij)
- rcar deferred probing fix (Sergei Shtylyov)"
* tag 'for-4.21/libata-20181221' of git://git.kernel.dk/linux-block:
sata_rcar: fix deferred probing
ata: palmld: Introduce state container
ata: palmld: Convert to GPIO descriptors
ata: rb532_cf: Convert to use GPIO descriptors
ata: sata_highbank: Convert to use GPIO descriptors
ata: pxa: Drop <linux/gpio.h> include
of_find_node_by_path() acquires a reference to the node
returned by it and that reference needs to be dropped by its caller.
This place doesn't do that, so fix it.
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The driver overrides the error codes returned by platform_get_irq() to
-EINVAL, so if it returns -EPROBE_DEFER, the driver would fail the probe
permanently instead of the deferred probing. Switch to propagating the
error code upstream, still checking/overriding IRQ0 as libata regards it
as "no IRQ" (thus polling) anyway...
Fixes: 9ec36cafe4 ("of/irq: do irq resolution in platform_get_irq")
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Merge tag 'v4.20-rc6' into for-4.21/block
Pull in v4.20-rc6 to resolve the conflict in NVMe, but also to get the
two corruption fixes. We're going to be overhauling the direct dispatch
path, and we need to do that on top of the changes we made for that
in mainline.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This creates a state container struct for the Palm LifeDrive
ATA controller, and puts the ATA host and the two GPIO
descriptors into this container.
This avoids using a singleton so potentially multiple
PATA interfaces can be instantiated.
Suggested-by: Marek Vasut <marek.vasut@gmail.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Instead of passing GPIO numbers directly to the PalmLD
ATA driver, pass GPIO descriptors from the board file and
handle these in the driver.
Cc: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Pass a GPIO descriptor for the device instead of a hardcoded
GPIO number from the global GPIO numberspace. Use gpio
descriptors throughout.
Cut the now completely unused platform data for the CF slot.
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Waldemar Brodkorb <wbx@openadk.org>
Cc: Matt Redfearn <matt.redfearn@mips.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This pure device tree driver is simple to convert to use
just GPIO descriptors instead of GPIO numbers. So let's
just do it.
Cc: Mark Langsdorf <mlangsdo@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This driver does not use GPIO or anything from the GPIO header.
Drop the include.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
These devices support read zero after trim (RZAT), as they advertise to
the OS. However, the OS doesn't believe the SSDs unless they are
explicitly whitelisted.
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Juha-Matti Tilli <juha-matti.tilli@iki.fi>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Merge tag 'v4.20-rc3' into for-4.21/block
Merge in -rc3 to resolve a few conflicts, but also to get a few
important fixes that have gone into mainline since the block
4.21 branch was forked off (most notably the SCSI queue issue,
which is both a conflict AND needed fix).
Signed-off-by: Jens Axboe <axboe@kernel.dk>
There is nothing it could synchronize against, so don't go through
the pains of acquiring the lock.
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
med_power_with_dipm still causes freezes after updating the firmware to
the latest version (DXT04L5Q).
Set model_rev to NULL and blacklist the device.
Cc: stable@vger.kernel.org
Signed-off-by: Diego Viola <diego.viola@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This patch updates license to use SPDX-License-Identifier
instead of verbose license text.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
med_power_with_dipm causes my T450 to freeze with a SAMSUNG
MZ7TD256HAFV-000L9 SSD (firmware DXT02L5Q).
Switching the LPM to max_performance fixes this issue.
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Diego Viola <diego.viola@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Merge tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
- Fix ASPM link_state teardown on removal (Lukas Wunner)
- Fix misleading _OSC ASPM message (Sinan Kaya)
- Make _OSC optional for PCI (Sinan Kaya)
- Don't initialize ASPM link state when ACPI_FADT_NO_ASPM is set
(Patrick Talbert)
- Remove x86 and arm64 node-local allocation for host bridge structures
(Punit Agrawal)
- Pay attention to device-specific _PXM node values (Jonathan Cameron)
- Support new Immediate Readiness bit (Felipe Balbi)
- Differentiate between pciehp surprise and safe removal (Lukas Wunner)
- Remove unnecessary pciehp includes (Lukas Wunner)
- Drop pciehp hotplug_slot_ops wrappers (Lukas Wunner)
- Tolerate PCIe Slot Presence Detect being hardwired to zero to
workaround broken hardware, e.g., the Wilocity switch/wireless device
(Lukas Wunner)
- Unify pciehp controller & slot structs (Lukas Wunner)
- Constify hotplug_slot_ops (Lukas Wunner)
- Drop hotplug_slot_info (Lukas Wunner)
- Embed hotplug_slot struct into users instead of allocating it
separately (Lukas Wunner)
- Initialize PCIe port service drivers directly instead of relying on
initcall ordering (Keith Busch)
- Restore PCI config state after a slot reset (Keith Busch)
- Save/restore DPC config state along with other PCI config state
(Keith Busch)
- Reference count devices during AER handling to avoid race issue with
concurrent hot removal (Keith Busch)
- If an Upstream Port reports ERR_FATAL, don't try to read the Port's
config space because it is probably unreachable (Keith Busch)
- During error handling, use slot-specific reset instead of secondary
bus reset to avoid link up/down issues on hotplug ports (Keith Busch)
- Restore previous AER/DPC handling that does not remove and
re-enumerate devices on ERR_FATAL (Keith Busch)
- Notify all drivers that may be affected by error recovery resets
(Keith Busch)
- Always generate error recovery uevents, even if a driver doesn't have
error callbacks (Keith Busch)
- Make PCIe link active reporting detection generic (Keith Busch)
- Support D3cold in PCIe hierarchies during system sleep and runtime,
including hotplug and Thunderbolt ports (Mika Westerberg)
- Handle hpmemsize/hpiosize kernel parameters uniformly, whether slots
are empty or occupied (Jon Derrick)
- Remove duplicated include from pci/pcie/err.c and unused variable
from cpqphp (YueHaibing)
- Remove driver pci_cleanup_aer_uncorrect_error_status() calls (Oza
Pawandeep)
- Uninline PCI bus accessors for better ftracing (Keith Busch)
- Remove unused AER Root Port .error_resume method (Keith Busch)
- Use kfifo in AER instead of a local version (Keith Busch)
- Use threaded IRQ in AER bottom half (Keith Busch)
- Use managed resources in AER core (Keith Busch)
- Reuse pcie_port_find_device() for AER injection (Keith Busch)
- Abstract AER interrupt handling to disconnect error injection (Keith
Busch)
- Refactor AER injection callbacks to simplify future improvments
(Keith Busch)
- Remove unused Netronome NFP32xx Device IDs (Jakub Kicinski)
- Use bitmap_zalloc() for dma_alias_mask (Andy Shevchenko)
- Add switch fall-through annotations (Gustavo A. R. Silva)
- Remove unused Switchtec quirk variable (Joshua Abraham)
- Fix pci.c kernel-doc warning (Randy Dunlap)
- Remove trivial PCI wrappers for DMA APIs (Christoph Hellwig)
- Add Intel GPU device IDs to spurious interrupt quirk (Bin Meng)
- Run Switchtec DMA aliasing quirk only on NTB endpoints to avoid
useless dmesg errors (Logan Gunthorpe)
- Update Switchtec NTB documentation (Wesley Yung)
- Remove redundant "default n" from Kconfig (Bartlomiej Zolnierkiewicz)
- Avoid panic when drivers enable MSI/MSI-X twice (Tonghao Zhang)
- Add PCI support for peer-to-peer DMA (Logan Gunthorpe)
- Add sysfs group for PCI peer-to-peer memory statistics (Logan
Gunthorpe)
- Add PCI peer-to-peer DMA scatterlist mapping interface (Logan
Gunthorpe)
- Add PCI configfs/sysfs helpers for use by peer-to-peer users (Logan
Gunthorpe)
- Add PCI peer-to-peer DMA driver writer's documentation (Logan
Gunthorpe)
- Add block layer flag to indicate driver support for PCI peer-to-peer
DMA (Logan Gunthorpe)
- Map Infiniband scatterlists for peer-to-peer DMA if they contain P2P
memory (Logan Gunthorpe)
- Register nvme-pci CMB buffer as PCI peer-to-peer memory (Logan
Gunthorpe)
- Add nvme-pci support for PCI peer-to-peer memory in requests (Logan
Gunthorpe)
- Use PCI peer-to-peer memory in nvme (Stephen Bates, Steve Wise,
Christoph Hellwig, Logan Gunthorpe)
- Cache VF config space size to optimize enumeration of many VFs
(KarimAllah Ahmed)
- Remove unnecessary <linux/pci-ats.h> include (Bjorn Helgaas)
- Fix VMD AERSID quirk Device ID matching (Jon Derrick)
- Fix Cadence PHY handling during probe (Alan Douglas)
- Signal Cadence Endpoint interrupts via AXI region 0 instead of last
region (Alan Douglas)
- Write Cadence Endpoint MSI interrupts with 32 bits of data (Alan
Douglas)
- Remove redundant controller tests for "device_type == pci" (Rob
Herring)
- Document R-Car E3 (R8A77990) bindings (Tho Vu)
- Add device tree support for R-Car r8a7744 (Biju Das)
- Drop unused mvebu PCIe capability code (Thomas Petazzoni)
- Add shared PCI bridge emulation code (Thomas Petazzoni)
- Convert mvebu to use shared PCI bridge emulation (Thomas Petazzoni)
- Add aardvark Root Port emulation (Thomas Petazzoni)
- Support 100MHz/200MHz refclocks for i.MX6 (Lucas Stach)
- Add initial power management for i.MX7 (Leonard Crestez)
- Add PME_Turn_Off support for i.MX7 (Leonard Crestez)
- Fix qcom runtime power management error handling (Bjorn Andersson)
- Update TI dra7xx unaligned access errata workaround for host mode as
well as endpoint mode (Vignesh R)
- Fix kirin section mismatch warning (Nathan Chancellor)
- Remove iproc PAXC slot check to allow VF support (Jitendra Bhivare)
- Quirk Keystone K2G to limit MRRS to 256 (Kishon Vijay Abraham I)
- Update Keystone to use MRRS quirk for host bridge instead of open
coding (Kishon Vijay Abraham I)
- Refactor Keystone link establishment (Kishon Vijay Abraham I)
- Simplify and speed up Keystone link training (Kishon Vijay Abraham I)
- Remove unused Keystone host_init argument (Kishon Vijay Abraham I)
- Merge Keystone driver files into one (Kishon Vijay Abraham I)
- Remove redundant Keystone platform_set_drvdata() (Kishon Vijay
Abraham I)
- Rename Keystone functions for uniformity (Kishon Vijay Abraham I)
- Add Keystone device control module DT binding (Kishon Vijay Abraham
I)
- Use SYSCON API to get Keystone control module device IDs (Kishon
Vijay Abraham I)
- Clean up Keystone PHY handling (Kishon Vijay Abraham I)
- Use runtime PM APIs to enable Keystone clock (Kishon Vijay Abraham I)
- Clean up Keystone config space access checks (Kishon Vijay Abraham I)
- Get Keystone outbound window count from DT (Kishon Vijay Abraham I)
- Clean up Keystone outbound window configuration (Kishon Vijay Abraham
I)
- Clean up Keystone DBI setup (Kishon Vijay Abraham I)
- Clean up Keystone ks_pcie_link_up() (Kishon Vijay Abraham I)
- Fix Keystone IRQ status checking (Kishon Vijay Abraham I)
- Add debug messages for all Keystone errors (Kishon Vijay Abraham I)
- Clean up Keystone includes and macros (Kishon Vijay Abraham I)
- Fix Mediatek unchecked return value from devm_pci_remap_iospace()
(Gustavo A. R. Silva)
- Fix Mediatek endpoint/port matching logic (Honghui Zhang)
- Change Mediatek Root Port Class Code to PCI_CLASS_BRIDGE_PCI (Honghui
Zhang)
- Remove redundant Mediatek PM domain check (Honghui Zhang)
- Convert Mediatek to pci_host_probe() (Honghui Zhang)
- Fix Mediatek MSI enablement (Honghui Zhang)
- Add Mediatek system PM support for MT2712 and MT7622 (Honghui Zhang)
- Add Mediatek loadable module support (Honghui Zhang)
- Detach VMD resources after stopping root bus to prevent orphan
resources (Jon Derrick)
- Convert pcitest build process to that used by other tools (iio, perf,
etc) (Gustavo Pimentel)
* tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (140 commits)
PCI/AER: Refactor error injection fallbacks
PCI/AER: Abstract AER interrupt handling
PCI/AER: Reuse existing pcie_port_find_device() interface
PCI/AER: Use managed resource allocations
PCI: pcie: Remove redundant 'default n' from Kconfig
PCI: aardvark: Implement emulated root PCI bridge config space
PCI: mvebu: Convert to PCI emulated bridge config space
PCI: mvebu: Drop unused PCI express capability code
PCI: Introduce PCI bridge emulated config space common logic
PCI: vmd: Detach resources after stopping root bus
nvmet: Optionally use PCI P2P memory
nvmet: Introduce helper functions to allocate and free request SGLs
nvme-pci: Add support for P2P memory in requests
nvme-pci: Use PCI p2pmem subsystem to manage the CMB
IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]()
block: Add PCI P2P flag for request queue
PCI/P2PDMA: Add P2P DMA driver writer's documentation
docs-rst: Add a new directory for PCI documentation
PCI/P2PDMA: Introduce configfs/sysfs enable attribute helpers
PCI/P2PDMA: Add PCI p2pmem DMA mappings to adjust the bus offset
...
The few callers can just use dma_set_max_seg_size ()directly.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
'default n' is the default value for any bool or tristate Kconfig
setting so there is no need to write it explicitly.
Also since commit f467c5640c ("kconfig: only write '# CONFIG_FOO
is not set' for visible symbols") the Kconfig behavior is the same
regardless of 'default n' being present or not:
...
One side effect of (and the main motivation for) this change is making
the following two definitions behave exactly the same:
config FOO
bool
config FOO
bool
default n
With this change, neither of these will generate a
'# CONFIG_FOO is not set' line (assuming FOO isn't selected/implied).
That might make it clearer to people that a bare 'default n' is
redundant.
...
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Clang warns when one enumerated type is implicitly converted to another.
drivers/ata/pata_ep93xx.c:662:36: warning: implicit conversion from
enumeration type 'enum dma_data_direction' to different enumeration type
'enum dma_transfer_direction' [-Wenum-conversion]
drv_data->dma_rx_data.direction = DMA_FROM_DEVICE;
~ ^~~~~~~~~~~~~~~
drivers/ata/pata_ep93xx.c:670:36: warning: implicit conversion from
enumeration type 'enum dma_data_direction' to different enumeration type
'enum dma_transfer_direction' [-Wenum-conversion]
drv_data->dma_tx_data.direction = DMA_TO_DEVICE;
~ ^~~~~~~~~~~~~
drivers/ata/pata_ep93xx.c:681:19: warning: implicit conversion from
enumeration type 'enum dma_data_direction' to different enumeration type
'enum dma_transfer_direction' [-Wenum-conversion]
conf.direction = DMA_FROM_DEVICE;
~ ^~~~~~~~~~~~~~~
drivers/ata/pata_ep93xx.c:692:19: warning: implicit conversion from
enumeration type 'enum dma_data_direction' to different enumeration type
'enum dma_transfer_direction' [-Wenum-conversion]
conf.direction = DMA_TO_DEVICE;
~ ^~~~~~~~~~~~~
Use the equivalent valued enums from the expected type so that Clang no
longer warns about a conversion.
DMA_TO_DEVICE = DMA_MEM_TO_DEV = 1
DMA_FROM_DEVICE = DMA_DEV_TO_MEM = 2
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The Broadcom STB AHCI controller is the same as the one found on DSL
SoCs, so we will utilize the same driver on these systems as well.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Match the "brcm,bcm63138-ahci" compatible string in order to allow this
driver to probe on such platforms.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
On BCM63138, we need to reset the AHCI core prior to start utilizing it,
grab the reset controller device cookie and do that.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Merge tag 'for-linus-20180920' of git://git.kernel.dk/linux-block
Jens writes:
"Storage fixes for 4.19-rc5
- Fix for leaking kernel pointer in floppy ioctl (Andy Whitcroft)
- NVMe pull request from Christoph, and a single ANA log page fix
(Hannes)
- Regression fix for libata qd32 support, where we trigger an illegal
active command transition. This fixes a CD-ROM detection issue that
was reported, but could also trigger premature completion of the
internal tag (me)"
* tag 'for-linus-20180920' of git://git.kernel.dk/linux-block:
floppy: Do not copy a kernel pointer to user memory in FDGETPRM ioctl
libata: mask swap internal and hardware tag
nvme: count all ANA groups for ANA Log page
hen we're comparing the hardware completion mask passed in from the
driver with the internal tag pending mask, we need to account for the
fact that the internal tag is different from the hardware tag. If not,
then we can end up either prematurely completing the internal tag (since
it's not set in the hw mask), or simply flag an error:
ata2: illegal qc_active transition (100000000->00000001)
If the internal tag is set, then swap that with the hardware tag in this
case before comparing with what the hardware reports.
Fixes: 28361c4036 ("libata: add extra internal command")
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=201151
Cc: stable@vger.kernel.org
Reported-by: Paul Sbarra <sbarra.paul@gmail.com>
Tested-by: Paul Sbarra <sbarra.paul@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Clang warns when more than one set of parentheses is used for a
single conditional statement:
drivers/ata/pata_atiixp.c:282:19: warning: equality comparison with
extraneous parentheses [-Wparentheses-equality]
if((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE))
~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/ata/pata_atiixp.c:282:19: note: remove extraneous parentheses
around the comparison to silence this warning
if((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE))
~ ^ ~
drivers/ata/pata_atiixp.c:282:19: note: use '=' to turn this equality
comparison into an assignment
if((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE))
^~
=
1 warning generated.
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
A set of very minor fixes and a couple of reverts to fix a major
problem (the attempt to change the busy count causes a hang when
attempting to change the drive cache type).
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"A set of very minor fixes and a couple of reverts to fix a major
problem (the attempt to change the busy count causes a hang when
attempting to change the drive cache type)"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: aacraid: fix a signedness bug
Revert "scsi: core: avoid host-wide host_busy counter for scsi_mq"
Revert "scsi: core: fix scsi_host_queue_ready"
scsi: libata: Add missing newline at end of file
scsi: target: iscsi: cxgbit: use pr_debug() instead of pr_info()
scsi: hpsa: limit transfer length to 1MB, not 512kB
scsi: lpfc: Correct MDS diag and nvmet configuration
scsi: lpfc: Default fdmi_on to on
scsi: csiostor: fix incorrect port capabilities
scsi: csiostor: add a check for NULL pointer after kmalloc()
scsi: documentation: add scsi_mod.use_blk_mq to scsi-parameters
scsi: core: Update SCSI_MQ_DEFAULT help text to match default
This patch add the r40 compatible to the ahci_sunxi's supported list of
compatible.
Since R40 need ahci_platform to handle the reset controller, we also add
the new AHCI_PLATFORM_GET_RESETS flag for ahci_platform_get_resources().
This has no consequence for older platform (a10, a20) since the reset is
optional.
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The SoC R40 AHCI controller need a PHY regulator to work.
But since the PHY is embedded in the controller, we cannot do a DT node for it,
since phy-supply works only in node with a PHY compatible.
So this patch adds a way to add an optional phy-supply regulator on AHCI controller node.
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The SoC R40 AHCI controller need a regulator to work.
So this patch add a way to add an optional regulator on AHCI controller.
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Instead of hardcoding magic values for the SMART password,
use the defines in <linux/ata.h>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: linux-ide@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The DMA is broken on this specific device for some unknown
reason (probably badly designed or plain broken interface
electronics) and will only work with PIO. Other users of
the same hardware does not have this problem.
Add a specific quirk so that this Gemini device gets
DMA turned off. Also fix up some code around passing the
port information around in probe while we're at it.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
With gcc 4.1.2:
drivers/ata/libata-core.c:7396:33: warning: no newline at end of file
Fixes: 2fa4a32613 ("scsi: libsas: dynamically allocate and free ata host")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Pull libata updates from Tejun Heo:
"Nothing too interesting. Mostly ahci and ahci_platform changes, many
around power management"
* 'for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (22 commits)
ata: ahci_platform: enable to get and control reset
ata: libahci_platform: add reset control support
ata: add an extra argument to ahci_platform_get_resources()
ata: sata_rcar: Add r8a77965 support
ata: sata_rcar: exclude setting of PHY registers in Gen3
ata: sata_rcar: really mask all interrupts on Gen2 and later
Revert "ata: ahci_platform: allow disabling of hotplug to save power"
ata: libahci: Allow reconfigure of DEVSLP register
ata: libahci: Correct setting of DEVSLP register
ata: ahci: Enable DEVSLP by default on x86 with SLP_S0
ata: ahci: Support state with min power but Partial low power state
Revert "ata: ahci_platform: convert kcalloc to devm_kcalloc"
ata: sata_rcar: Add rudimentary Runtime PM support
ata: sata_rcar: Provide a short-hand for &pdev->dev
ata: Only output sg element mapped number in verbose debug
ata: Guard ata_scsi_dump_cdb() by ATA_VERBOSE_DEBUG
ata: ahci_platform: convert kcalloc to devm_kcalloc
ata: ahci_platform: convert kzallloc to kcalloc
ata: ahci_platform: correct parameter documentation for ahci_platform_shutdown
libata: remove ata_sff_data_xfer_noirq()
...
Some of the larger changes this merge window:
- Removal of drivers for Exynos5440, a Samsung SoC that never saw
widespread use.
- Uniphier support for USB3 and SPI reset handling
- Syste control and SRAM drivers and bindings for Allwinner platforms
- Qualcomm AOSS (Always-on subsystem) reset controller drivers
- Raspberry Pi hwmon driver for voltage
- Mediatek pwrap (pmic) support for MT6797 SoC
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"Some of the larger changes this merge window:
- Removal of drivers for Exynos5440, a Samsung SoC that never saw
widespread use.
- Uniphier support for USB3 and SPI reset handling
- Syste control and SRAM drivers and bindings for Allwinner platforms
- Qualcomm AOSS (Always-on subsystem) reset controller drivers
- Raspberry Pi hwmon driver for voltage
- Mediatek pwrap (pmic) support for MT6797 SoC"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (52 commits)
drivers/firmware: psci_checker: stash and use topology_core_cpumask for hotplug tests
soc: fsl: cleanup Kconfig menu
soc: fsl: dpio: Convert DPIO documentation to .rst
staging: fsl-mc: Remove remaining files
staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl
staging: fsl-dpaa2: eth: move generic FD defines to DPIO
soc: fsl: qe: gpio: Add qe_gpio_set_multiple
usb: host: exynos: Remove support for Exynos5440
clk: samsung: Remove support for Exynos5440
soc: sunxi: Add the A13, A23 and H3 system control compatibles
reset: uniphier: add reset control support for SPI
cpufreq: exynos: Remove support for Exynos5440
ata: ahci-platform: Remove support for Exynos5440
soc: imx6qp: Use GENPD_FLAG_ALWAYS_ON for PU errata
soc: mediatek: pwrap: add mt6351 driver for mt6797 SoCs
soc: mediatek: pwrap: add pwrap driver for mt6797 SoCs
soc: mediatek: pwrap: fix cipher init setting error
dt-bindings: pwrap: mediatek: add pwrap support for MT6797
reset: uniphier: add USB3 core reset control
dt-bindings: reset: uniphier: add USB3 core reset support
...
Unlike SoC-specific driver, generic ahci_platform driver doesn't
have any chances to control resets.
This adds AHCI_PLATFORM_GET_RESETS to ahci_platform_get_resources()
on the generic driver to enable reset control support.
Suggested-by: Hans de Goede <hdegoede@redhat.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Add support to get and control a list of resets for the device
as optional and shared. These resets must be kept de-asserted until
the device is enabled.
This is specified as shared because some SoCs like UniPhier series
have common reset controls with all ahci controller instances.
However, according to Thierry's view,
https://www.spinics.net/lists/linux-ide/msg55357.html
some hardware-specific drivers already use their own resets,
and the common reset make a path to occur double controls of resets.
The ahci_platform_get_resources() can get and control the reset
only when the second argument includes AHCI_PLATFORM_GET_RESETS bit.
Suggested-by: Hans de Goede <hdegoede@redhat.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Linus Torvalds