As VMAs for a given range might not be available as part of the
registration phase in ODP.
ib_init_umem_odp() considered the expected page shift value that was
previously set and initializes its internals accordingly.
If memory isn't backed by physical contiguous pages aligned to a hugepage
boundary an error will be set as part of the page fault flow and come back
to the user as some failed RDMA operation.
Fixes: 0008b84ea9 ("IB/umem: Add support to huge ODP")
Link: https://lore.kernel.org/r/20191222124649.52300-4-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The nr_pages argument of get_user_pages_remote() should always be in terms
of the system page size, not the MR page size. Use PAGE_SIZE instead of
umem_odp->page_shift.
Fixes: 403cd12e2c ("IB/umem: Add contiguous ODP support")
Link: https://lore.kernel.org/r/20191222124649.52300-3-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Artemy Kovalyov <artemyko@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Building MR translation table in the ODP case requires additional
flexibility, namely random access to DMA addresses. Make both direct and
indirect ODP MR use same code path, separated from the non-ODP MR code
path.
With the restructuring the correct page_shift is now used around
__mlx5_ib_populate_pas().
Fixes: d2183c6f19 ("RDMA/umem: Move page_shift from ib_umem to ib_odp_umem")
Link: https://lore.kernel.org/r/20191222124649.52300-2-leon@kernel.org
Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Comments need to be with the definition of rvt_restart_sge().
Other comments were duplicated in sw/rdmavt/rc.c and were removed.
Fixes: 385156c5f2 ("IB/hfi: Move RC functions into a header file")
Link: https://lore.kernel.org/r/20191219211934.58387.88014.stgit@awfm-01.aw.intel.com
Reviewed-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The current debugfs output for receive contexts (rcds), stops after the
kernel receive contexts have been displayed. This is not enough
information to fully diagnose packet drops.
Display all of the receive contexts.
Augment the output with some more context information.
Limit the ring buffer header output to 5 entries to avoid overextending
the sequential file output.
Fixes: bf808b5039 ("IB/hfi1: Add kernel receive context info to debugfs")
Link: https://lore.kernel.org/r/20191219211928.58387.20737.stgit@awfm-01.aw.intel.com
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This patch adds a set of accessor routines to access context members.
Link: https://lore.kernel.org/r/20191219211922.58387.26548.stgit@awfm-01.aw.intel.com
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Ingress checksum offload was not working for IPv6 frames because the
conditional expression that checks validation status passed from the
hardware was not matching the algorithm described in the documentation.
This patch defines L4_CSUM flag (which falls inside the badfcs_enc field
in the existing definition of the CQE layout) and replaces the conditional
expression with the one defined in the "ConnectX(r) Family Programmer's
Manual" document.
Link: https://lore.kernel.org/r/20191219134847.413582-1-leon@kernel.org
Signed-off-by: Eugene Crosser <evgenii.cherkashin@profitbricks.com>
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The RCU mechanism is optimized for read-mostly scenarios and therefore
more suitable to protect the cm_id_private to decrease "cm.lock"
congestion.
This patch replaces the existing spinlock locking mechanism and kfree with
RCU mechanism in places where spinlock(cm.lock) protected xa_load
returning the cm_id_priv
In addition, delete the cm_get_id() function as there is no longer a
distinction if the caller already holds the cm_lock.
Remove an open coded version of cm_get_id().
Link: https://lore.kernel.org/r/20191219134750.413429-1-leon@kernel.org
Signed-off-by: Danit Goldberg <danitg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Since ch has already been de-referenced by the time we get to the BUG_ON,
it is useless. The back trace alone is enough to tell what is going on,
delete the redundant BUG_ON.
Link: https://lore.kernel.org/r/20191217194437.25568-1-pakki001@umn.edu
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
In rdma_nl_rcv_skb(), the local variable err is assigned the return value
of the supplied callback function, which could be one of
ib_nl_handle_resolve_resp(), ib_nl_handle_set_timeout(), or
ib_nl_handle_ip_res_resp(). These three functions all return skb->len on
success.
rdma_nl_rcv_skb() is merely a copy of netlink_rcv_skb(). The callback
functions used by the latter have the convention: "Returns 0 on success or
a negative error code".
In particular, the statement (equal for both functions):
if (nlh->nlmsg_flags & NLM_F_ACK || err)
implies that rdma_nl_rcv_skb() always will ack a message, independent of
the NLM_F_ACK being set in nlmsg_flags or not.
The fix could be to change the above statement, but it is better to keep
the two *_rcv_skb() functions equal in this respect and instead change the
three callback functions in the rdma subsystem to the correct convention.
Fixes: 2ca546b92a ("IB/sa: Route SA pathrecord query through netlink")
Fixes: ae43f82867 ("IB/core: Add IP to GID netlink offload")
Link: https://lore.kernel.org/r/20191216120436.3204814-1-haakon.bugge@oracle.com
Suggested-by: Mark Haywood <mark.haywood@oracle.com>
Signed-off-by: Håkon Bugge <haakon.bugge@oracle.com>
Tested-by: Mark Haywood <mark.haywood@oracle.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Commit b0ffeb537f ("IB/mlx5: Fix iteration overrun in GSI qps") changed
the way outstanding WRs are tracked for the GSI QP. But the fix did not
cover the case when a call to ib_post_send() fails and updates index to
track outstanding.
Since the prior commmit outstanding_pi should not be bounded otherwise the
loop generate_completions() will fail.
Fixes: b0ffeb537f ("IB/mlx5: Fix iteration overrun in GSI qps")
Link: https://lore.kernel.org/r/1576195889-23527-1-git-send-email-psajeepa@purestorage.com
Signed-off-by: Prabhath Sajeepa <psajeepa@purestorage.com>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Change siw_qp to contain ib_qp. Use rdma_is_kernel_res() on contained
ib_qp to distinguish kernel level from user level applications
resources. Apply same mechanism for kernel/user level application
detection to completion queues.
Link: https://lore.kernel.org/r/20191210161729.31598-1-bmt@zurich.ibm.com
Signed-off-by: Bernard Metzler <bmt@zurich.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Currently, the wqe idx is calculated repeatly everywhere it is used. This
patch defines wqe_idx and calculated it only once, then just use it as
needed.
Fixes: 2d40788825 ("RDMA/hns: Add support for processing send wr and receive wr")
Link: https://lore.kernel.org/r/1575981902-5274-1-git-send-email-liweihang@hisilicon.com
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Report the the data path MSIx vectors allocated by driver as number of
completion vectors. One interrupt vector is used for Control path. So
reporting one less than the total number of MSIx vectors allocated by the
driver.
Link: https://lore.kernel.org/r/1574671174-5064-7-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
HW/FW support two types of latency enhancement features. Until now
user-space implemented only edpm (enhanced dpm). We add kernel capability
flags to differentiate between current FW in kernel that supports both
ldpm and edpm. Since edpm is not yet supported for iWARP we add different
flags for iWARP + RoCE. We also fix bad practice of defining sizes in
rdma-core and pass initialization to kernel, for forward compatibility.
The capability flags are added for backward-forward compatibility between
kernel and rdma-core for qedr.
Before this change there was a field called dpm_enabled which could hold
either 0 or 1 value, this indicated whether RoCE edpm was enabled or
not. We modified this field to be dpm_flags, and bit 1 still holds the
same meaning of RoCE edpm being enabled or not.
Link: https://lore.kernel.org/r/20191121112957.25162-1-michal.kalderon@marvell.com
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
One important fix for RISC-V:
- Redirect any incoming syscall with an ID less than -1 to
sys_ni_syscall, rather than allowing them to fall through into the
syscall handler.
and two minor build fixes:
- Export __asm_copy_{from,to}_user() from where they are defined.
This fixes a build error triggered by some randconfigs.
- Export flush_icache_all(). I'd resisted this before, since
historically we didn't want modules to be able to flush the I$
directly; but apparently everyone else is doing it now.
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Merge tag 'riscv/for-v5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
"One important fix for RISC-V:
- Redirect any incoming syscall with an ID less than -1 to
sys_ni_syscall, rather than allowing them to fall through into the
syscall handler.
and two minor build fixes:
- Export __asm_copy_{from,to}_user() from where they are defined.
This fixes a build error triggered by some randconfigs.
- Export flush_icache_all(). I'd resisted this before, since
historically we didn't want modules to be able to flush the I$
directly; but apparently everyone else is doing it now"
* tag 'riscv/for-v5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: export flush_icache_all to modules
riscv: reject invalid syscalls below -1
riscv: fix compile failure with EXPORT_SYMBOL() & !MMU
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Merge tag 'locks-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
Pull /proc/locks formatting fix from Jeff Layton:
"This is a trivial fix for a _very_ long standing bug in /proc/locks
formatting. Ordinarily, I'd wait for the merge window for something
like this, but it is making it difficult to validate some overlayfs
fixes.
I've also gone ahead and marked this for stable"
* tag 'locks-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
locks: print unsigned ino in /proc/locks
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Merge tag '5.5-rc3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"One performance fix for large directory searches, and one minor style
cleanup noticed by Clang"
* tag '5.5-rc3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Optimize readdir on reparse points
cifs: Adjust indentation in smb2_open_file
An ino is unsigned, so display it as such in /proc/locks.
Cc: stable@vger.kernel.org
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
This is needed by LKDTM (crash dump test module), it calls
flush_icache_range(), which on RISC-V turns into flush_icache_all(). On
other architectures, the actual implementation is exported, so follow
that precedence and export it here too.
Fixes build of CONFIG_LKDTM that fails with:
ERROR: "flush_icache_all" [drivers/misc/lkdtm/lkdtm.ko] undefined!
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Running "stress-ng --enosys 4 -t 20 -v" showed a large number of kernel oops
with "Unable to handle kernel paging request at virtual address" message. This
happens when enosys stressor starts testing random non-valid syscalls.
I forgot to redirect any syscall below -1 to sys_ni_syscall.
With the patch kernel oops messages are gone while running stress-ng enosys
stressor.
Signed-off-by: David Abdurachmanov <david.abdurachmanov@sifive.com>
Fixes: 5340627e3f ("riscv: add support for SECCOMP and SECCOMP_FILTER")
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
When support for !MMU was added, the declaration of
__asm_copy_to_user() & __asm_copy_from_user() were #ifdefed
out hence their EXPORT_SYMBOL() give an error message like:
.../riscv_ksyms.c:13:15: error: '__asm_copy_to_user' undeclared here
.../riscv_ksyms.c:14:15: error: '__asm_copy_from_user' undeclared here
Since these symbols are not defined with !MMU it's wrong to export them.
Same for __clear_user() (even though this one is also declared in
include/asm-generic/uaccess.h and thus doesn't give an error message).
Fix this by doing the EXPORT_SYMBOL() directly where these symbols
are defined: inside lib/uaccess.S itself.
Fixes: 6bd33e1ece ("riscv: fix compile failure with EXPORT_SYMBOL() & !MMU")
Reported-by: kbuild test robot <lkp@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Four fixes and one spelling update, all in drivers: 2 in lpfc and the
rest in mp3sas, cxgbi and target.
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:
"Four fixes and one spelling update, all in drivers: two in lpfc and
the rest in mp3sas, cxgbi and target"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: target/iblock: Fix protection error with blocks greater than 512B
scsi: libcxgbi: fix NULL pointer dereference in cxgbi_device_destroy()
scsi: lpfc: fix spelling mistakes of asynchronous
scsi: lpfc: fix build failure with DEBUGFS disabled
scsi: mpt3sas: Fix double free in attach error handling
i915:
- power management rc6 fix
- framebuffer tracking fix
- display power management ratelimit fix
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Merge tag 'drm-fixes-2019-12-28' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Post-xmas food coma recovery fixes. Only three fixes for i915 since I
expect most people are holidaying.
i915:
- power management rc6 fix
- framebuffer tracking fix
- display power management ratelimit fix"
* tag 'drm-fixes-2019-12-28' of git://anongit.freedesktop.org/drm/drm:
drm/i915: Hold reference to intel_frontbuffer as we track activity
drm/i915/gt: Ratelimit display power w/a
drm/i915/pmu: Ensure monotonic rc6
This Kselftest update for Linux 5.5-rc4 consists of:
-- rseq build failures fixes related to glibc 2.30 compatibility
from Mathieu Desnoyers
-- Kunit fixes and cleanups from SeongJae Park
-- Fixes to filesystems/epoll, firmware, and livepatch build failures
and skip handling.
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Merge tag 'linux-kselftest-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
- rseq build failures fixes related to glibc 2.30 compatibility from
Mathieu Desnoyers
- Kunit fixes and cleanups from SeongJae Park
- Fixes to filesystems/epoll, firmware, and livepatch build failures
and skip handling.
* tag 'linux-kselftest-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
rseq/selftests: Clarify rseq_prepare_unload() helper requirements
rseq/selftests: Fix: Namespace gettid() for compatibility with glibc 2.30
rseq/selftests: Turn off timeout setting
kunit/kunit_tool_test: Test '--build_dir' option run
kunit: Rename 'kunitconfig' to '.kunitconfig'
kunit: Place 'test.log' under the 'build_dir'
kunit: Create default config in '--build_dir'
kunit: Remove duplicated defconfig creation
docs/kunit/start: Use in-tree 'kunit_defconfig'
selftests: livepatch: Fix it to do root uid check and skip
selftests: firmware: Fix it to do root uid check and skip
selftests: filesystems/epoll: fix build error
Fix compile test of the Tegra devfreq driver (Arnd Bergmann)
and remove redundant Kconfig dependencies from multiple devfreq
drivers (Leonard Crestez).
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Merge tag 'pm-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"Fix compile test of the Tegra devfreq driver (Arnd Bergmann) and
remove redundant Kconfig dependencies from multiple devfreq drivers
(Leonard Crestez)"
* tag 'pm-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / devfreq: tegra: Add COMMON_CLK dependency
PM / devfreq: Drop explicit selection of PM_OPP
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Merge tag 'io_uring-5.5-20191226' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
- Removal of now unused busy wqe list (Hillf)
- Add cond_resched() to io-wq work processing (Hillf)
- And then the series that I hinted at from last week, which removes
the sqe from the io_kiocb and keeps all sqe handling on the prep
side. This guarantees that an opcode can't do the wrong thing and
read the sqe more than once. This is unchanged from last week, no
issues have been observed with this in testing. Hence I really think
we should fold this into 5.5.
* tag 'io_uring-5.5-20191226' of git://git.kernel.dk/linux-block:
io-wq: add cond_resched() to worker thread
io-wq: remove unused busy list from io_sqe
io_uring: pass in 'sqe' to the prep handlers
io_uring: standardize the prep methods
io_uring: read 'count' for IORING_OP_TIMEOUT in prep handler
io_uring: move all prep state for IORING_OP_{SEND,RECV}_MGS to prep handler
io_uring: move all prep state for IORING_OP_CONNECT to prep handler
io_uring: add and use struct io_rw for read/writes
io_uring: use u64_to_user_ptr() consistently
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Merge tag 'libata-5.5-20191226' of git://git.kernel.dk/linux-block
Pull libata fixes from Jens Axboe:
"Two things in here:
- First half of a series that fixes ahci_brcm, also marked for
stable. The other part of the series is going into 5.6 (Florian)
- sata_nv regression fix that is also marked for stable (Sascha)"
* tag 'libata-5.5-20191226' of git://git.kernel.dk/linux-block:
ata: ahci_brcm: Add missing clock management during recovery
ata: ahci_brcm: BCM7425 AHCI requires AHCI_HFLAG_DELAY_ENGINE
ata: ahci_brcm: Fix AHCI resources management
ata: libahci_platform: Export again ahci_platform_<en/dis>able_phys()
libata: Fix retrieving of active qcs
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Merge tag 'block-5.5-20191226' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Only thing here are the changes from Arnd from last week, which now
have the appropriate header include to ensure they actually compile if
COMPAT is enabled"
* tag 'block-5.5-20191226' of git://git.kernel.dk/linux-block:
compat_ioctl: block: handle Persistent Reservations
compat_ioctl: block: handle add zone open, close and finish ioctl
compat_ioctl: block: handle BLKGETZONESZ/BLKGETNRZONES
compat_ioctl: block: handle BLKREPORTZONE/BLKRESETZONE
pktcdvd: fix regression on 64-bit architectures
- Fix the build for the Xtensa driver.
- Make sure to set up the parent device for mpc8xxx.
- Clarify the look-up error message.
- Fix the usage of the line direction in the mockup device.
- Fix a type warning on the Aspeed driver.
- Remove the pointless __exit annotation on the xgs-iproc which
is causing a compilation problem.
- Fix up emultation of open drain outputs .get_direction()
- Fix the IRQ callbacks on the PCA953xx to use bitops and
work properly.
- Fix the Kconfig on the Tegra driver.
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Merge tag 'gpio-v5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"A set of fixes for the v5.5 series:
- Fix the build for the Xtensa driver.
- Make sure to set up the parent device for mpc8xxx.
- Clarify the look-up error message.
- Fix the usage of the line direction in the mockup device.
- Fix a type warning on the Aspeed driver.
- Remove the pointless __exit annotation on the xgs-iproc which is
causing a compilation problem.
- Fix up emultation of open drain outputs .get_direction()
- Fix the IRQ callbacks on the PCA953xx to use bitops and work
properly.
- Fix the Kconfig on the Tegra driver"
* tag 'gpio-v5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: tegra186: Allow building on Tegra194-only configurations
gpio: pca953x: Switch to bitops in IRQ callbacks
gpiolib: fix up emulated open drain outputs
MAINTAINERS: Append missed file to the database
gpio: xgs-iproc: remove __exit annotation for iproc_gpio_remove
gpio: aspeed: avoid return type warning
gpio: mockup: Fix usage of new GPIO_LINE_DIRECTION
gpio: Fix error message on out-of-range GPIO in lookup table
gpio: mpc8xxx: Add platform device to gpiochip->parent
gpio: xtensa: fix driver build
The downstream implementation of ahci_brcm.c did contain clock
management recovery, but until recently, did that outside of the
libahci_platform helpers and this was unintentionally stripped out while
forward porting the patch upstream.
Add the missing clock management during recovery and sleep for 10
milliseconds per the design team recommendations to ensure the SATA PHY
controller and AFE have been fully quiesced.
Fixes: eb73390ae2 ("ata: ahci_brcm: Recover from failures to identify devices")
Cc: stable@vger.kernel.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Set AHCI_HFLAG_DELAY_ENGINE for the BCM7425 AHCI controller thus making
it conforming to the 'strict' AHCI implementation which this controller
is based on.
This solves long link establishment with specific hard drives (e.g.:
Seagate ST1000VM002-9ZL1 SC12) that would otherwise have to complete the
error recovery handling before finally establishing a succesful SATA
link at the desired speed.
We re-order the hpriv->flags assignment to also remove the NONCQ quirk
since we can set the flag directly.
Fixes: 9586114cf1e9 ("ata: ahci_brcmstb: add support MIPS-based platforms")
Fixes: 423be77daabe ("ata: ahci_brcmstb: add quirk for broken ncq")
Cc: stable@vger.kernel.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The AHCI resources management within ahci_brcm.c is a little
convoluted, largely because it historically had a dedicated clock that
was managed within this file in the downstream tree. Once brough
upstream though, the clock was left to be managed by libahci_platform.c
which is entirely appropriate.
This patch series ensures that the AHCI resources are fetched and
enabled before any register access is done, thus avoiding bus errors on
platforms which clock gate the controller by default.
As a result we need to re-arrange the suspend() and resume() functions
in order to avoid accessing registers after the clocks have been turned
off respectively before the clocks have been turned on. Finally, we can
refactor brcm_ahci_get_portmask() in order to fetch the number of ports
from hpriv->mmio which is now accessible without jumping through hoops
like we used to do.
The commit pointed in the Fixes tag is both old and new enough not to
require major headaches for backporting of this patch.
Fixes: eba68f8297 ("ata: ahci_brcmstb: rename to support across Broadcom SoC's")
Cc: stable@vger.kernel.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This reverts commit 6bb86fefa0
("libahci_platform: Staticize ahci_platform_<en/dis>able_phys()") we are
going to need ahci_platform_{enable,disable}_phys() in a subsequent
commit for ahci_brcm.c in order to properly control the PHY
initialization order.
Also make sure the function prototypes are declared in
include/linux/ahci_platform.h as a result.
Cc: stable@vger.kernel.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
ata_qc_complete_multiple() is called with a mask of the still active
tags.
mv_sata doesn't have this information directly and instead calculates
the still active tags from the started tags (ap->qc_active) and the
finished tags as (ap->qc_active ^ done_mask)
Since 28361c4036 the hw_tag and tag are no longer the same and the
equation is no longer valid. In ata_exec_internal_sg() ap->qc_active is
initialized as 1ULL << ATA_TAG_INTERNAL, but in hardware tag 0 is
started and this will be in done_mask on completion. ap->qc_active ^
done_mask becomes 0x100000000 ^ 0x1 = 0x100000001 and thus tag 0 used as
the internal tag will never be reported as completed.
This is fixed by introducing ata_qc_get_active() which returns the
active hardware tags and calling it where appropriate.
This is tested on mv_sata, but sata_fsl and sata_nv suffer from the same
problem. There is another case in sata_nv that most likely needs fixing
as well, but this looks a little different, so I wasn't confident enough
to change that.
Fixes: 28361c4036 ("libata: add extra internal command")
Cc: stable@vger.kernel.org
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add missing export of ata_qc_get_active(), as per Pali.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Detailed description for this pull request:
1. Fix the build error of tegra*-devfreq.c when COMPILE_TEST is enableda
2. Drop unneeded PM_OPP dependency from each driver in Kconfig
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Merge tag 'devfreq-fixes-for-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux
Pull devfreq fixes for 5.5-rc4 from Chanwoo Choi:
"1. Fix the build error of tegra*-devfreq.c when COMPILE_TEST is enabled.
2. Drop unneeded PM_OPP dependency from each driver in Kconfig."
* tag 'devfreq-fixes-for-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux:
PM / devfreq: tegra: Add COMMON_CLK dependency
PM / devfreq: Drop explicit selection of PM_OPP
Reschedule the current IO worker to cut the risk that it is becoming
a cpu hog.
Signed-off-by: Hillf Danton <hdanton@sina.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The rseq.h UAPI now documents that the rseq_cs field must be cleared
before reclaiming memory that contains the targeted struct rseq_cs, but
also that the rseq_cs field must be cleared before reclaiming memory of
the code pointed to by the rseq_cs start_ip and post_commit_offset
fields.
While we can expect that use of dlclose(3) will typically unmap
both struct rseq_cs and its associated code at once, nothing would
theoretically prevent a JIT from reclaiming the code without
reclaiming the struct rseq_cs, which would erroneously allow the
kernel to consider new code which is not a rseq critical section
as a rseq critical section following a code reclaim.
Suggested-by: Florian Weimer <fw@deneb.enyo.de>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Florian Weimer <fw@deneb.enyo.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: "Paul E. McKenney" <paulmck@linux.ibm.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Paul Turner <pjt@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
glibc 2.30 introduces gettid() in public headers, which clashes with
the internal static definition within rseq selftests.
Rename gettid() to rseq_gettid() to eliminate this symbol name clash.
Reported-by: Tommi T. Rantala <tommi.t.rantala@nokia.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Tommi T. Rantala <tommi.t.rantala@nokia.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: "Paul E. McKenney" <paulmck@linux.ibm.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Paul Turner <pjt@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org> # v4.18+
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
As the rseq selftests can run for a long period of time, disable the
timeout that the general selftests have.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: "Paul E. McKenney" <paulmck@linux.ibm.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Paul Turner <pjt@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit renames 'kunitconfig' to '.kunitconfig' so that it can be
automatically ignored by git and do not disturb people who want to type
'kernel/' by pressing only the 'k' and then 'tab' key.
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Tested-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
'kunit' writes the 'test.log' under the kernel source directory even
though a 'build_dir' option is given. As users who use the option might
expect the outputs to be placed under the specified directory, this
commit modifies the logic to write the log file under the 'build_dir'.
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Tested-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
If both '--build_dir' and '--defconfig' are given, the handling of
'--defconfig' ignores '--build_dir' option. This commit modifies the
behavior to respect '--build_dir' option.
Reported-by: Brendan Higgins <brendanhiggins@google.com>
Suggested-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Tested-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
