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2020-06-13treewide: replace '---help---' in Kconfig files with 'help'Masahiro Yamada1-2/+2
Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over '---help---'"), the number of '---help---' has been gradually decreasing, but there are still more than 2400 instances. This commit finishes the conversion. While I touched the lines, I also fixed the indentation. There are a variety of indentation styles found. a) 4 spaces + '---help---' b) 7 spaces + '---help---' c) 8 spaces + '---help---' d) 1 space + 1 tab + '---help---' e) 1 tab + '---help---' (correct indentation) f) 1 tab + 1 space + '---help---' g) 1 tab + 2 spaces + '---help---' In order to convert all of them to 1 tab + 'help', I ran the following commend: $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/' Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-06-03RDMA: Remove 'max_map_per_fmr'Jason Gunthorpe1-10/+0
Now that FMR support is gone, this attribute can be deleted from all places. Link: https://lore.kernel.org/r/13-v3-f58e6669d5d3+2cf-fmr_removal_jgg@mellanox.com Reviewed-by: Max Gurtovoy <maxg@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-06-03RDMA/mthca: Remove FMR support for memory registrationMax Gurtovoy4-380/+1
Remove the ancient and unsafe FMR method. Link: https://lore.kernel.org/r/9-v3-f58e6669d5d3+2cf-fmr_removal_jgg@mellanox.com Reviewed-by: Max Gurtovoy <maxg@mellanox.com> Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-05-03RDMA: Group create AH arguments in structMaor Gottlieb1-4/+5
Following patch adds additional argument to the create AH function, so it make sense to group ah_attr and flags arguments in struct. Link: https://lore.kernel.org/r/20200430192146.12863-13-maorg@mellanox.com Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Acked-by: Devesh Sharma <devesh.sharma@broadcom.com> Acked-by: Gal Pressman <galpress@amazon.com> Acked-by: Weihang Li <liweihang@huawei.com> Reviewed-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-03-04RDMA/providers: Fix return value when QP type isn't supportedKamal Heib1-1/+1
The proper return code is "-EOPNOTSUPP" when the requested QP type is not supported by the provider. Link: https://lore.kernel.org/r/20200130082049.463-1-kamalheib1@gmail.com Signed-off-by: Kamal Heib <kamalheib1@gmail.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-02-20RDMA: Replace zero-length array with flexible-array memberGustavo A. R. Silva2-2/+2
The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. Also, notice that, dynamic memory allocations won't be affected by this change: "Flexible array members have incomplete type, and so the sizeof operator may not be applied. As a quirk of the original implementation of zero-length arrays, sizeof evaluates to zero."[1] This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Link: https://lore.kernel.org/r/20200213010425.GA13068@embeddedor.com Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> # added a few more
2020-01-31mm, tree-wide: rename put_user_page*() to unpin_user_page*()John Hubbard1-3/+3
In order to provide a clearer, more symmetric API for pinning and unpinning DMA pages. This way, pin_user_pages*() calls match up with unpin_user_pages*() calls, and the API is a lot closer to being self-explanatory. Link: http://lkml.kernel.org/r/20200107224558.2362728-23-jhubbard@nvidia.com Signed-off-by: John Hubbard <jhubbard@nvidia.com> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Alex Williamson <alex.williamson@redhat.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Björn Töpel <bjorn.topel@intel.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Hans Verkuil <hverkuil-cisco@xs4all.nl> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jens Axboe <axboe@kernel.dk> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Leon Romanovsky <leonro@mellanox.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-31IB/{core,hw,umem}: set FOLL_PIN via pin_user_pages*(), fix up ODPJohn Hubbard1-1/+1
Convert infiniband to use the new pin_user_pages*() calls. Also, revert earlier changes to Infiniband ODP that had it using put_user_page(). ODP is "Case 3" in Documentation/core-api/pin_user_pages.rst, which is to say, normal get_user_pages() and put_page() is the API to use there. The new pin_user_pages*() calls replace corresponding get_user_pages*() calls, and set the FOLL_PIN flag. The FOLL_PIN flag requires that the caller must return the pages via put_user_page*() calls, but infiniband was already doing that as part of an earlier commit. Link: http://lkml.kernel.org/r/20200107224558.2362728-14-jhubbard@nvidia.com Signed-off-by: John Hubbard <jhubbard@nvidia.com> Reviewed-by: Jason Gunthorpe <jgg@mellanox.com> Cc: Alex Williamson <alex.williamson@redhat.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Björn Töpel <bjorn.topel@intel.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Hans Verkuil <hverkuil-cisco@xs4all.nl> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Jan Kara <jack@suse.cz> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jens Axboe <axboe@kernel.dk> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Leon Romanovsky <leonro@mellanox.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-16IB: Allow calls to ib_umem_get from kernel ULPsMoni Shoua1-1/+1
So far the assumption was that ib_umem_get() and ib_umem_odp_get() are called from flows that start in UVERBS and therefore has a user context. This assumption restricts flows that are initiated by ULPs and need the service that ib_umem_get() provides. This patch changes ib_umem_get() and ib_umem_odp_get() to get IB device directly by relying on the fact that both UVERBS and ULPs sets that field correctly. Reviewed-by: Guy Levi <guyle@mellanox.com> Signed-off-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-11-17IB/umem: remove the dmasync argument to ib_umem_getChristoph Hellwig1-3/+1
The argument is always ignored, so remove it. Link: https://lore.kernel.org/r/20191113073214.9514-3-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jason Gunthorpe <jgg@mellanox.com> Acked-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-11-13RDMA: Change MAD processing function to remove extra casting and parameterLeon Romanovsky2-47/+35
All users of process_mad() converts input pointers from ib_mad_hdr to be ib_mad, update the function declaration to use ib_mad directly. Also remove not used input MAD size parameter. Link: https://lore.kernel.org/r/20191029062745.7932-17-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Tested-By: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-11-06RDMA/mad: Do not check MAD sizes in roce and ib driversLeon Romanovsky1-4/+0
All callers for process_mad allocate MAD structures with proper sizes, there is no need to recheck it. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-07-03IB: Remove unneeded memsetFuqian Huang1-2/+0
In commit af7ddd8a627c ("Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping"), dma_alloc_coherent/dmam_alloc_coherent always zeroed the returned memory. So the memset after a coherent allocation function is not needed. Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com> Reviewed-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-06-29Merge tag 'v5.2-rc6' into rdma.git for-nextJason Gunthorpe1-0/+1
For dependencies in next patches. Resolve conflicts: - Use uverbs_get_cleared_udata() with new cq allocation flow - Continue to delete nes despite SPDX conflict - Resolve list appends in mlx5_command_str() - Use u16 for vport_rule stuff - Resolve list appends in struct ib_client Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-06-20RDMA: Check umem pointer validity prior to releaseLeon Romanovsky1-2/+1
Update ib_umem_release() to behave similarly to kfree() and allow submitting NULL pointer as safe input to this function. Fixes: a52c8e2469c3 ("RDMA: Clean destroy CQ in drivers do not return errors") Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-06-19RDMA: Report available cdevs through RDMA_NLDEV_CMD_GET_CHARDEVJason Gunthorpe1-0/+1
Update the struct ib_client for all modules exporting cdevs related to the ibdevice to also implement RDMA_NLDEV_CMD_GET_CHARDEV. All cdevs are now autoloadable and discoverable by userspace over netlink instead of relying on sysfs. uverbs also exposes the DRIVER_ID for drivers that are able to support driver id binding in rdma-core. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-06-11RDMA: Convert CQ allocations to be under core responsibilityLeon Romanovsky1-21/+15
Ensure that CQ is allocated and freed by IB/core and not by drivers. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Acked-by: Gal Pressman <galpress@amazon.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Tested-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-06-11RDMA: Clean destroy CQ in drivers do not return errorsLeon Romanovsky1-3/+1
Like all other destroy commands, .destroy_cq() call is not supposed to fail. In all flows, the attempt to return earlier caused to memory leaks. This patch converts .destroy_cq() to do not return any errors. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Acked-by: Gal Pressman <galpress@amazon.com> Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-06-10RDMA: Move owner into struct ib_device_opsJason Gunthorpe1-2/+1
This more closely follows how other subsytems work, with owner being a member of the structure containing the function pointers. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-06-10RDMA: Move uverbs_abi_ver into struct ib_device_opsJason Gunthorpe1-1/+1
No reason for every driver to emit code to set this, just make it part of the driver's existing static const ops structure. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-06-10RDMA: Move driver_id into struct ib_device_opsJason Gunthorpe1-1/+2
No reason for every driver to emit code to set this, just make it part of the driver's existing static const ops structure. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-28RDMA: Convert put_page() to put_user_page*()John Hubbard1-3/+3
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>
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner1-0/+1
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-14IB/mthca: use the new FOLL_LONGTERM flag to get_user_pages_fast()Ira Weiny1-1/+2
Use the new FOLL_LONGTERM to get_user_pages_fast() to protect against FS DAX pages being mapped. Link: http://lkml.kernel.org/r/20190328084422.29911-8-ira.weiny@intel.com Link: http://lkml.kernel.org/r/20190317183438.2057-8-ira.weiny@intel.com Signed-off-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Dan Williams <dan.j.williams@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Hogan <jhogan@kernel.org> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: John Hubbard <jhubbard@nvidia.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Rich Felker <dalias@libc.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Mike Marshall <hubcap@omnibond.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-09Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds5-108/+97
Pull rdma updates from Jason Gunthorpe: "This has been a smaller cycle than normal. One new driver was accepted, which is unusual, and at least one more driver remains in review on the list. Summary: - Driver fixes for hns, hfi1, nes, rxe, i40iw, mlx5, cxgb4, vmw_pvrdma - Many patches from MatthewW converting radix tree and IDR users to use xarray - Introduction of tracepoints to the MAD layer - Build large SGLs at the start for DMA mapping and get the driver to split them - Generally clean SGL handling code throughout the subsystem - Support for restricting RDMA devices to net namespaces for containers - Progress to remove object allocation boilerplate code from drivers - Change in how the mlx5 driver shows representor ports linked to VFs - mlx5 uapi feature to access the on chip SW ICM memory - Add a new driver for 'EFA'. This is HW that supports user space packet processing through QPs in Amazon's cloud" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (186 commits) RDMA/ipoib: Allow user space differentiate between valid dev_port IB/core, ipoib: Do not overreact to SM LID change event RDMA/device: Don't fire uevent before device is fully initialized lib/scatterlist: Remove leftover from sg_page_iter comment RDMA/efa: Add driver to Kconfig/Makefile RDMA/efa: Add the efa module RDMA/efa: Add EFA verbs implementation RDMA/efa: Add common command handlers RDMA/efa: Implement functions that submit and complete admin commands RDMA/efa: Add the ABI definitions RDMA/efa: Add the com service API definitions RDMA/efa: Add the efa_com.h file RDMA/efa: Add the efa.h header file RDMA/efa: Add EFA device definitions RDMA: Add EFA related definitions RDMA/umem: Remove hugetlb flag RDMA/bnxt_re: Use core helpers to get aligned DMA address RDMA/i40iw: Use core helpers to get aligned DMA address within a supported page size RDMA/verbs: Add a DMA iterator to return aligned contiguous memory blocks RDMA/umem: Add API to find best driver supported page size in an MR ...
2019-04-08RDMA: Handle SRQ allocations by IB/coreLeon Romanovsky1-32/+21
Convert SRQ allocation from drivers to be in the IB/core Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-04-08RDMA: Handle AH allocations by IB/coreLeon Romanovsky1-21/+8
Simplify drivers by ensuring lifetime of ib_ah object. The changes in .create_ah() go hand in hand with relevant update in .destroy_ah(). We will use this opportunity and convert .destroy_ah() to don't fail, as it was suggested a long time ago, because there is nothing to do in case of failure during destroy. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-04-08drivers: Remove explicit invocations of mmiowb()Will Deacon4-34/+0
mmiowb() is now implied by spin_unlock() on architectures that require it, so there is no reason to call it from driver code. This patch was generated using coccinelle: @mmiowb@ @@ - mmiowb(); and invoked as: $ for d in drivers include/linux/qed sound; do \ spatch --include-headers --sp-file mmiowb.cocci --dir $d --in-place; done NOTE: mmiowb() has only ever guaranteed ordering in conjunction with spin_unlock(). However, pairing each mmiowb() removal in this patch with the corresponding call to spin_unlock() is not at all trivial, so there is a small chance that this change may regress any drivers incorrectly relying on mmiowb() to order MMIO writes between CPUs using lock-free synchronisation. If you've ended up bisecting to this commit, you can reintroduce the mmiowb() calls using wmb() instead, which should restore the old behaviour on all architectures other than some esoteric ia64 systems. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-04-01IB: Pass only ib_udata in function prototypesShamir Rabinovitch1-23/+22
Now when ib_udata is passed to all the driver's object create/destroy APIs the ib_udata will carry the ib_ucontext for every user command. There is no need to also pass the ib_ucontext via the functions prototypes. Make ib_udata the only argument psssed. Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-04-01IB: Remove 'uobject->context' dependency in object destroy APIsShamir Rabinovitch1-14/+28
Now that we have the udata passed to all the ib_xxx object destroy APIs and the additional macro 'rdma_udata_to_drv_context' to get the ib_ucontext from ib_udata stored in uverbs_attr_bundle, we can finally start to remove the dependency of the drivers in the ib_xxx->uobject->context. Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-04-01IB: Pass uverbs_attr_bundle down ib_x destroy pathShamir Rabinovitch1-6/+6
The uverbs_attr_bundle with the ucontext is sent down to the drivers ib_x destroy path as ib_udata. The next patch will use the ib_udata to free the drivers destroy path from the dependency in 'uobject->context' as we already did for the create path. Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-03-28RDMA/mthca: Use correct sizing on buffers holding page DMA addressesShiraz Saleem1-1/+1
The buffer that holds the page DMA addresses is sized off umem->nmap. This can potentially cause out of bound accesses on the PBL array when iterating the umem DMA-mapped SGL. This is because if umem pages are combined, umem->nmap can be much lower than the number of system pages in umem. Use ib_umem_num_pages() to size this buffer. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-03-26RDMA: Use __packed annotation instead of __attribute__ ((packed))Erez Alfasi4-13/+13
"__attribute__" set of macros has been standardized, have became more potentially portable and consistent code back in v2.6.21 by commit 82ddcb040 ("[PATCH] extend the set of "__attribute__" shortcut macros"). Moreover, nowadays checkpatch.pl warns about using __attribute__((packed)) instead of __packed. This patch converts all the "__attribute__ ((packed))" annotations to "__packed" within the RDMA subsystem. Signed-off-by: Erez Alfasi <ereza@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-23RDMA: Handle ucontext allocations by IB/coreLeon Romanovsky1-25/+14
Following the PD conversion patch, do the same for ucontext allocations. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-16IB/{hw,sw}: Remove 'uobject->context' dependency in object creation APIsShamir Rabinovitch3-23/+31
Now when we have the udata passed to all the ib_xxx object creation APIs and the additional macro 'rdma_udata_to_drv_context' to get the ib_ucontext from ib_udata stored in uverbs_attr_bundle, we can finally start to remove the dependency of the drivers in the ib_xxx->uobject->context. Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-12RDMA/mthca: Use for_each_sg_dma_page iterator on umem SGLShiraz, Saleem1-20/+16
Use the for_each_sg_dma_page iterator variant to walk the umem DMA-mapped SGL and get the page DMA address. This avoids the extra loop to iterate pages in the SGE when for_each_sg iterator is used. Additionally, purge umem->page_shift usage in the driver as its only relevant for ODP MRs. Use system page size and shift instead. Signed-off-by: Shiraz, Saleem <shiraz.saleem@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-09RDMA: Handle PD allocations by IB/coreLeon Romanovsky1-19/+10
The PD allocations in IB/core allows us to simplify drivers and their error flows in their .alloc_pd() paths. The changes in .alloc_pd() go hand in had with relevant update in .dealloc_pd(). We will use this opportunity and convert .dealloc_pd() to don't fail, as it was suggested a long time ago, failures are not happening as we have never seen a WARN_ON print. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-05Merge tag 'v5.0-rc5' into rdma.git for-nextJason Gunthorpe1-2/+2
Linux 5.0-rc5 Needed to merge the include/uapi changes so we have an up to date single-tree for these files. Patches already posted are also expected to need this for dependencies.
2019-01-31RDMA: Provide safe ib_alloc_device() functionLeon Romanovsky1-1/+1
All callers to ib_alloc_device() provide a larger size than struct ib_device and rely on the fact that struct ib_device is embedded in their driver specific structure as the first member. Provide a safer variant of ib_alloc_device() that checks and enforces this approach to make sure the drivers are using it right. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-01-29Merge branch 'devx-async' into k.o/for-nextJason Gunthorpe1-2/+3
Yishai Hadas says: Enable DEVX asynchronous query commands This series enables querying a DEVX object in an asynchronous mode. The userspace application won't block when calling the firmware and it will be able to get the response back once that it will be ready. To enable the above functionality: - DEVX asynchronous command completion FD object was introduced. - The applicable file operations were implemented to enable using it by the user application. - Query asynchronous method was added to the DEVX object, it will call the firmware asynchronously and manages the response on the given input FD. - Hot unplug support was added for the FD to work properly upon unbind/disassociate. - mlx5 core fence for asynchronous commands was implemented and used to prevent racing upon unbind/disassociate. This branch is based on mlx5-next & v5.0-rc2 due to dependencies, from git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux * branch 'devx-async': IB/mlx5: Implement DEVX hot unplug for async command FD IB/mlx5: Implement the file ops of DEVX async command FD IB/mlx5: Introduce async DEVX obj query API IB/mlx5: Introduce MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-01-18Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds1-2/+2
Pull rdma fixes frfom Jason Gunthorpe: "Not much so far. We have the usual batch of bugs and two fixes to code merged this cycle: - Restore valgrind support for the ioctl verbs interface merged this window, and fix a missed error code on an error path from that conversion - A user reported crash on obsolete mthca hardware - pvrdma was using the wrong command opcode toward the hypervisor - NULL pointer crash regression when dumping rdma-cm over netlink - Be conservative about exposing the global rkey" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: RDMA/uverbs: Mark ioctl responses with UVERBS_ATTR_F_VALID_OUTPUT RDMA/mthca: Clear QP objects during their allocation RDMA/vmw_pvrdma: Return the correct opcode when creating WR RDMA/cma: Add cm_id restrack resource based on kernel or user cm_id type RDMA/nldev: Don't expose unsafe global rkey to regular user RDMA/uverbs: Fix post send success return value in case of error
2019-01-14RDMA: Introduce and use rdma_device_to_ibdev()Parav Pandit1-3/+6
Introduce and use rdma_device_to_ibdev() API for those drivers which are registering one sysfs group and also use in ib_core. In subsequent patch, device->provider_ibdev one-to-one mapping is no longer holds true during accessing sysfs entries. Therefore, introduce an API rdma_device_to_ibdev() that provides such information. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-01-14RDMA: Rename port_callback to init_portParav Pandit1-1/+1
Most provider routines are callback routines which ib core invokes. _callback suffix doesn't convey information about when such callback is invoked. Therefore, rename port_callback to init_port. Additionally, store the init_port function pointer in ib_device_ops, so that it can be accessed in subsequent patches when binding rdma device to net namespace. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-01-11RDMA: Clear CTX objects during their allocationLeon Romanovsky1-1/+1
As part of an audit process to update drivers to use rdma_restrack_add() ensure that CTX objects is cleared before access. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-01-11RDMA: Clear CQ objects during their allocationLeon Romanovsky1-1/+1
As part of an audit process to update drivers to use rdma_restrack_add() ensure that CQ objects is cleared before access. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-01-11RDMA: Clear PD objects during their allocationLeon Romanovsky1-1/+1
As part of an audit process to update drivers to use rdma_restrack_add() ensure that PD objects is cleared before access. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-01-11IB/{core,hw}: Have ib_umem_get extract the ib_ucontext from ib_udataJason Gunthorpe1-1/+1
ib_umem_get() can only be called in a method callback, which always has a udata parameter. This allows ib_umem_get() to derive the ucontext pointer directly from the udata without requiring the drivers to find it in some way or another. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
2019-01-11RDMA/mthca: Clear QP objects during their allocationLeon Romanovsky1-2/+2
As part of audit process to update drivers to use rdma_restrack_add() ensure that QP objects is cleared before access. Such change fixes the crash observed with uninitialized non zero sgid attr accessed by ib_destroy_qp(). CPU: 3 PID: 74 Comm: kworker/u16:1 Not tainted 4.19.10-300.fc29.x86_64 Workqueue: ipoib_wq ipoib_cm_tx_reap [ib_ipoib] RIP: 0010:rdma_put_gid_attr+0x9/0x30 [ib_core] RSP: 0018:ffffb7ad819dbde8 EFLAGS: 00010202 RAX: 0000000000000000 RBX: ffff8d1bdf5a2e00 RCX: 0000000000002699 RDX: 206c656e72656af8 RSI: ffff8d1bf7ae6160 RDI: 206c656e72656b20 RBP: 0000000000000000 R08: 0000000000026160 R09: ffffffffc06b45bf R10: ffffe849887da000 R11: 0000000000000002 R12: ffff8d1be30cb400 R13: ffff8d1bdf681800 R14: ffff8d1be2272400 R15: ffff8d1be30ca000 FS: 0000000000000000(0000) GS:ffff8d1bf7ac0000(0000) knlGS:0000000000000000 Trace: ib_destroy_qp+0xc9/0x240 [ib_core] ipoib_cm_tx_reap+0x1f9/0x4e0 [ib_ipoib] process_one_work+0x1a1/0x3a0 worker_thread+0x30/0x380 ? pwq_unbound_release_workfn+0xd0/0xd0 kthread+0x112/0x130 ? kthread_create_worker_on_cpu+0x70/0x70 ret_from_fork+0x22/0x40 Reported-by: Alexander Murashkin <AlexanderMurashkin@msn.com> Tested-by: Alexander Murashkin <AlexanderMurashkin@msn.com> Fixes: 1a1f460ff151 ("RDMA: Hold the sgid_attr inside the struct ib_ah/qp") Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-01-08cross-tree: phase out dma_zalloc_coherent()Luis Chamberlain1-2/+3
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>
2018-12-20RDMA: Mark if destroy address handle is in a sleepable contextGal Pressman2-3/+4
Introduce a 'flags' field to destroy address handle callback and add a flag that marks whether the callback is executed in an atomic context or not. This will allow drivers to wait for completion instead of polling for it when it is allowed. Signed-off-by: Gal Pressman <galpress@amazon.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-02 14:49:30 +0300