A previous change incorrectly changed the inverted logic and logically
negated the readl rather than the shifted readl result. Fix this by
adding in missing parentheses around the expression that needs to be
logically negated.
Addresses-Coverity: ("Logically dead code")
Fixes: 669cefb654 ("RDMA/hns: Remove jiffies operation in disable interrupt context")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The function srp_parse_in() is used both for parsing source address
specifications and for target address specifications. Target addresses
must have a port number. Having to specify a port number for source
addresses is inconvenient. Make sure that srp_parse_in() supports again
parsing addresses with no port number.
Cc: <stable@vger.kernel.org>
Fixes: c62adb7def ("IB/srp: Fix IPv6 address parsing")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Add support for reporting link state for ipoib net devices.
$ ip l set dev mlx4_ib0 up
$ ethtool mlx4_ib0 | grep Link
Link detected: yes
$ ip l set dev mlx4_ib0 down
$ ethtool mlx4_ib0 | grep Link
Link detected: no
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
When the user submits more than 32 work request to a srq queue
at a time, it needs to find the corresponding number of entries
in the bitmap in the idx queue. However, the original lookup
function named ffs only processes 32 bits of the array element,
When the number of srq wqe issued exceeds 32, the ffs will only
process the lower 32 bits of the elements, it will not be able
to get the correct wqe index for srq wqe.
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
If the kzalloc() fails then we should return ERR_PTR(-ENOMEM). In the
current code it's possible that the kzalloc() fails and the
radix_tree_insert() inserts the NULL pointer successfully and we return
the NULL "elm" pointer to the caller. That results in a NULL pointer
dereference.
Fixes: 9ed3e5f447 ("IB/uverbs: Build the specs into a radix tree at runtime")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes, in particular in the
context in which this code is being used.
So, replace the following form:
sizeof(struct opa_port_status_rsp) + num_vls * sizeof(struct _vls_pctrs)
with:
struct_size(rsp, vls, num_vls)
and so on...
Also, notice that variable size is unnecessary, hence it is removed.
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes, in particular in the
context in which this code is being used.
So, replace the following form:
sizeof(*pkt) + sizeof(pkt->addr[0])*n
with:
struct_size(pkt, addr, n)
Also, notice that variable size is unnecessary, hence it is removed.
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes, in particular in the
context in which this code is being used.
So, replace the following form:
sizeof(struct rvt_sge) * init_attr->cap.max_send_sge + sizeof(struct rvt_swqe)
with:
struct_size(swq, sg_list, init_attr->cap.max_send_sge)
and so on...
Also, notice that variable size is unnecessary, hence it is removed.
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Remove leftover includes that are no longer used from the driver.
Reviewed-by: Firas JahJah <firasj@amazon.com>
Reviewed-by: Yossi Leybovich <sleybo@amazon.com>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
When creating the chunks list the rdma_for_each_block() iterator is used
in order to iterate over the payload in EFA_CHUNK_PAYLOAD_SIZE (device
defined) strides.
Reviewed-by: Firas JahJah <firasj@amazon.com>
Reviewed-by: Yossi Leybovich <sleybo@amazon.com>
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The admin commands abort flow is buggy (use-after-free) and not really
necessary as it is guaranteed that after ib_unregister_device() is called
there are no user verbs threads running in parallel, delete it.
Suggested-by: Jason Gunthorpe <jgg@ziepe.ca>
Reviewed-by: Firas JahJah <firasj@amazon.com>
Reviewed-by: Yossi Leybovich <sleybo@amazon.com>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Use kvzalloc which attempts to allocate a physically continuous buffer and
fallbacks to virtually continuous on failure instead of open coding it in
the driver.
The is_vmalloc_addr function is used to determine whether the buffer is
physically continuous or not (which determines direct vs indirect MR
registration mode).
Suggested-by: Jason Gunthorpe <jgg@ziepe.ca>
Reviewed-by: Firas JahJah <firasj@amazon.com>
Reviewed-by: Yossi Leybovich <sleybo@amazon.com>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
A recent patch to hfi1 left behind a checkpatch error.
Fixes: fb24ea52f7 ("drivers: Remove explicit invocations of mmiowb()")
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
For infiniband code that retains pages via get_user_pages*(), release
those pages via the new put_user_page(), or put_user_pages*(), instead of
put_page()
This is a tiny part of the second step of fixing the problem described in
[1]. The steps are:
1) Provide put_user_page*() routines, intended to be used for releasing
pages that were pinned via get_user_pages*().
2) Convert all of the call sites for get_user_pages*(), to invoke
put_user_page*(), instead of put_page(). This involves dozens of call
sites, and will take some time.
3) After (2) is complete, use get_user_pages*() and put_user_page*() to
implement tracking of these pages. This tracking will be separate from
the existing struct page refcounting.
4) Use the tracking and identification of these pages, to implement
special handling (especially in writeback paths) when the pages are
backed by a filesystem. Again, [1] provides details as to why that is
desirable.
[1] https://lwn.net/Articles/753027/ : "The Trouble with get_user_pages()"
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Jérôme Glisse <jglisse@redhat.com>
Acked-by: Jason Gunthorpe <jgg@mellanox.com>
Tested-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/infiniband/hw/hfi1/tid_rdma.c: In function tid_rdma_rcv_error:
drivers/infiniband/hw/hfi1/tid_rdma.c:2029:7: warning: variable offset set but not used [-Wunused-but-set-variable]
drivers/infiniband/hw/hfi1/tid_rdma.c: In function hfi1_rc_rcv_tid_rdma_ack:
drivers/infiniband/hw/hfi1/tid_rdma.c:4555:35: warning: variable fspsn set but not used [-Wunused-but-set-variable]
'offset' is never used since introduction in
commit d0d564a1ca ("IB/hfi1: Add functions to receive TID RDMA READ request")
'fspsn' is never used since introduciotn in
commit 9e93e967f7 ("IB/hfi1: Add a function to receive TID RDMA ACK packet")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This patch makes the code more readable by removing magic numbers.
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
In some functions, the jiffies operation is unnecessary, and we can
control delay using mdelay and udelay functions only. Especially, in
hns_roce_v1_clear_hem, the function calls spin_lock_irqsave, the context
disables interrupt, so we can not use jiffies and msleep functions.
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
When hip08 set gid, it will call spin_unlock_bh when send cmq. if main.ko
call spin_lock_irqsave firstly, and the kernel is before commit
f71b74bca6 ("irq/softirqs: Use lockdep to assert IRQs are
disabled/enabled"), it will cause WARN_ON_ONCE because of calling
spin_unlock_bh in disable context.
In fact, the spin_lock_irqsave in main.ko is only used for hip06, and
should be placed in hns_roce_hw_v1.c. hns_roce_hw_v2.c uses its own
spin_unlock_bh and does not need main.ko manage spin_lock.
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
According to hip08 UM, the maximum number of CQEs supported by each CQ is
4M.
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
There is no need to print when communication is established, especially
while lots of qp used by application.
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Add await in destroy_qp() so that all references to qp are dereferenced
and qp is freed in destroy_qp() itself. This ensures freeing of all QPs
before invocation of dealloc_ucontext(), which prevents loss of in use
qpids stored in the ucontext.
Signed-off-by: Nirranjan Kirubaharan <nirranjan@chelsio.com>
Reviewed-by: Potnuri Bharat Teja <bharat@chelsio.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Change unconditional print of DMA address to be printed with special
printk format type specifier.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Convert various sizeof call sites to be written in standard format
sizeof().
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Resize CQ implementation was guarded by undeclared "notyet" define while
cxgb3 was added to the kernel. Twelve years later, this call is still
unimplemented, so safely delete it and fix improper return error code when
.resize_cq() is not implemented.
Fixes: b038ced7b3 ("RDMA/cxgb3: Add driver for Chelsio T3 RNIC")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
DMA addresses like all other kernel addresses should be printed with
special %p* formatter. It is needed to allow control of exposure of such
information through a dedicated knob.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
sizeof(a), sizeof a and sizeof (a) are all valid notations, but first is
more readable format recommended by checkpatch.pl.
Let's canonize it in cxgb3 drivers, so latter patches won't emit
checkpatch warnings. As part of this change, a redundant memset() was
removed.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Drivers cannot check the udata for validity when doing destroy as there
will be no way to report this error back to the uverbs.
Since udata is new for destroy no driver should start to use it - instead
drivers should opt for the ioctl interface and define it in a way where it
cannot fail due to incorrect data.
Remove the checks on udata construction so EFA is consistent with
everything else.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The same wait queue is initialized a couple of lines above.
Fixes: 3c2d774cad ("RDMA/nes: Add a driver for NetEffect RNICs")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
There is no need to check existence of structures to be destroyed.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The destroy functions are always called with relevant structs, there is no
need to check their existence.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Kernel destroy CQ flows can't fail and the returned value of
ib_destroy_cq() is not interested in those flows.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
There are nothing to do from user side with knowledge that destroy CQ
fails.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
There is no value in checking ib_destroy_cq() result and skipping to clear
struct ic fields. This connection needs to be reinitialized anyway.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The return value from ib_device_check_mandatory() is always 0 - change it
to be void.
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The function argument virt_addr is not in use - delete it.
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This value has always been set to PAGE_SHIFT in the core code, the only
thing that does differently was the ODP path. Move the value into the ODP
struct and still use it for ODP, but change all the non-ODP things to just
use PAGE_SHIFT/PAGE_SIZE/PAGE_MASK directly.
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Use the correct enum value introduced in commit 12113a35ad ("IB/core:
Add HDR speed enum") Prior to this change a 50Gbps port would show 40Gbps.
This patch also cleaned up the redundant redefiniton of ib speeds for
qedr.
Fixes: 12113a35ad ("IB/core: Add HDR speed enum")
Signed-off-by: Sagiv Ozeri <sagiv.ozeri@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Use the correct function names.
Fixes: c4367a2635 ("IB: Pass uverbs_attr_bundle down ib_x destroy path")
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Print the supported and wanted values for SG count during signature
operation.
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
A wrong value was printed in case of sig MR pool initialization failure.
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Use the correct function name.
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Reduce lines of code by using local variable.
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
- Build errors wrt. xattrs
- Mismerge which lead to a wrong Kconfig ifdef
- Missing endianness conversion
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Merge tag 'upstream-5.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs
Pull UBIFS fixes from Richard Weinberger:
- build errors wrt xattrs
- mismerge which lead to a wrong Kconfig ifdef
- missing endianness conversion
* tag 'upstream-5.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
ubifs: Convert xattr inum to host order
ubifs: Use correct config name for encryption
ubifs: Fix build error without CONFIG_UBIFS_FS_XATTR
Merge yet more updates from Andrew Morton:
"A few final bits:
- large changes to vmalloc, yielding large performance benefits
- tweak the console-flush-on-panic code
- a few fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
panic: add an option to replay all the printk message in buffer
initramfs: don't free a non-existent initrd
fs/writeback.c: use rcu_barrier() to wait for inflight wb switches going into workqueue when umount
mm/compaction.c: correct zone boundary handling when isolating pages from a pageblock
mm/vmap: add DEBUG_AUGMENT_LOWEST_MATCH_CHECK macro
mm/vmap: add DEBUG_AUGMENT_PROPAGATE_CHECK macro
mm/vmalloc.c: keep track of free blocks for vmap allocation
- remove unneeded use of cc-option, cc-disable-warning, cc-ldoption
- exclude tracked files from .gitignore
- re-enable -Wint-in-bool-context warning
- refactor samples/Makefile
- stop building immediately if syncconfig fails
- do not sprinkle error messages when $(CC) does not exist
- move arch/alpha/defconfig to the configs subdirectory
- remove crappy header search path manipulation
- add comment lines to .config to clarify the end of menu blocks
- check uniqueness of module names (adding new warnings intentionally)
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Merge tag 'kbuild-v5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
- remove unneeded use of cc-option, cc-disable-warning, cc-ldoption
- exclude tracked files from .gitignore
- re-enable -Wint-in-bool-context warning
- refactor samples/Makefile
- stop building immediately if syncconfig fails
- do not sprinkle error messages when $(CC) does not exist
- move arch/alpha/defconfig to the configs subdirectory
- remove crappy header search path manipulation
- add comment lines to .config to clarify the end of menu blocks
- check uniqueness of module names (adding new warnings intentionally)
* tag 'kbuild-v5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (24 commits)
kconfig: use 'else ifneq' for Makefile to improve readability
kbuild: check uniqueness of module names
kconfig: Terminate menu blocks with a comment in the generated config
kbuild: add LICENSES to KBUILD_ALLDIRS
kbuild: remove 'addtree' and 'flags' magic for header search paths
treewide: prefix header search paths with $(srctree)/
media: prefix header search paths with $(srctree)/
media: remove unneeded header search paths
alpha: move arch/alpha/defconfig to arch/alpha/configs/defconfig
kbuild: terminate Kconfig when $(CC) or $(LD) is missing
kbuild: turn auto.conf.cmd into a mandatory include file
.gitignore: exclude .get_maintainer.ignore and .gitattributes
kbuild: add all Clang-specific flags unconditionally
kbuild: Don't try to add '-fcatch-undefined-behavior' flag
kbuild: add some extra warning flags unconditionally
kbuild: add -Wvla flag unconditionally
arch: remove dangling asm-generic wrappers
samples: guard sub-directories with CONFIG options
kbuild: re-enable int-in-bool-context warning
MAINTAINERS: kbuild: Add pattern for scripts/*vmlinux*
...
Pull i2c updates from Wolfram Sang:
"Some I2C core API additions which are kind of simple but enhance error
checking for users a lot, especially by returning errno now.
There are wrappers to still support the old API but it will be removed
once all users are converted"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: core: add device-managed version of i2c_new_dummy
i2c: core: improve return value handling of i2c_new_device and i2c_new_dummy
Unicode 12.1.0.
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Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Some bug fixes, and an update to the URL's for the final version of
Unicode 12.1.0"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: avoid panic during forced reboot due to aborted journal
ext4: fix block validity checks for journal inodes using indirect blocks
unicode: update to Unicode 12.1.0 final
unicode: add missing check for an error return from utf8lookup()
ext4: fix miscellaneous sparse warnings
ext4: unsigned int compared against zero
ext4: fix use-after-free in dx_release()
ext4: fix data corruption caused by overlapping unaligned and aligned IO
jbd2: fix potential double free
ext4: zero out the unused memory region in the extent tree block
