mirror of https://gitee.com/openkylin/linux.git
1493 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Dan Williams
|
5f1d43de54 |
IB/core: disable memory registration of filesystem-dax vmas
Until there is a solution to the dma-to-dax vs truncate problem it is
not safe to allow RDMA to create long standing memory registrations
against filesytem-dax vmas.
Link: http://lkml.kernel.org/r/151068941011.7446.7766030590347262502.stgit@dwillia2-desk3.amr.corp.intel.com
Fixes:
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Linus Torvalds
|
ad0835a930 |
Updates for 4.15 kernel merge window
- Add iWARP support to qedr driver - Lots of misc fixes across subsystem - Multiple update series to hns roce driver - Multiple update series to hfi1 driver - Updates to vnic driver - Add kref to wait struct in cxgb4 driver - Updates to i40iw driver - Mellanox shared pull request - timer_setup changes - massive cleanup series from Bart Van Assche - Two series of SRP/SRPT changes from Bart Van Assche - Core updates from Mellanox - i40iw updates - IPoIB updates - mlx5 updates - mlx4 updates - hns updates - bnxt_re fixes - PCI write padding support - Sparse/Smatch/warning cleanups/fixes - CQ moderation support - SRQ support in vmw_pvrdma -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJaDF9JAAoJELgmozMOVy/dDXUP/i92g+G4OJ+4hHMh4KCjQMHT eMr/w9l1C033HrtsU1afPhqHOsKSxwCuJSiTgN4uXIm67/2kPK5Vlx+ir7mbOLwB 3ukVK6Q/aFdigWCUhIaJSlDpjbd2sEj7JwKtM3rucvMWJlBJ4mAbcVQVfU96CCsv V9mO7dpR3QtYWDId9DukfnAfPUPFa3SMZnD7tdl6mKNRg/MjWGYLAL4nJoBfex5f b4o+MTrbuFWXYsfDru1m9BpHgyul20ldfcnbe8C/sVOQmOgkX7ngD5Sdi1FLeRJP GF/DnAqInC9N7cAxZHx4kH9x6mLMmEdfnwQ9VTVqGUHBsj3H4hQTVIAFfHUhWUbG TP5ZHgZG2CewZ0rf092cWlDZwp6n0BalnbQJr+QN4MzPmYbofs3AccSKUwrle+e+ E6yYf4XxJdt7wRr4F1QKygtUEXSnNkNYUDQ4ZFbpJS/D4Sq80R1ZV/WZ7PJxm1D/ EIKoi7NU9cbPMIlbCzn8kzgfjS7Pe4p0WW/Xxc/IYmACzpwNPkZuFGSND79ksIpF jhHqwZsOWFuXISjvcR4loc8wW6a5w5vjOiX0lLVz0NSdXSzVqav/2at7ZLDx/PT+ Lh9YVL51akA3hiD+3X6iOhfOUu6kskjT9HijE5T8rJnf0V+C6AtIRpwrQ7ONmjJm 3JMrjjLxtCIvpUyzCvDW =A1oL -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma updates from Doug Ledford: "This is a fairly plain pull request. Lots of driver updates across the stack, a huge number of static analysis cleanups including a close to 50 patch series from Bart Van Assche, and a number of new features inside the stack such as general CQ moderation support. Nothing really stands out, but there might be a few conflicts as you take things in. In particular, the cleanups touched some of the same lines as the new timer_setup changes. Everything in this pull request has been through 0day and at least two days of linux-next (since Stephen doesn't necessarily flag new errors/warnings until day2). A few more items (about 30 patches) from Intel and Mellanox showed up on the list on Tuesday. I've excluded those from this pull request, and I'm sure some of them qualify as fixes suitable to send any time, but I still have to review them fully. If they contain mostly fixes and little or no new development, then I will probably send them through by the end of the week just to get them out of the way. There was a break in my acceptance of patches which coincides with the computer problems I had, and then when I got things mostly back under control I had a backlog of patches to process, which I did mostly last Friday and Monday. So there is a larger number of patches processed in that timeframe than I was striving for. Summary: - Add iWARP support to qedr driver - Lots of misc fixes across subsystem - Multiple update series to hns roce driver - Multiple update series to hfi1 driver - Updates to vnic driver - Add kref to wait struct in cxgb4 driver - Updates to i40iw driver - Mellanox shared pull request - timer_setup changes - massive cleanup series from Bart Van Assche - Two series of SRP/SRPT changes from Bart Van Assche - Core updates from Mellanox - i40iw updates - IPoIB updates - mlx5 updates - mlx4 updates - hns updates - bnxt_re fixes - PCI write padding support - Sparse/Smatch/warning cleanups/fixes - CQ moderation support - SRQ support in vmw_pvrdma" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (296 commits) RDMA/core: Rename kernel modify_cq to better describe its usage IB/mlx5: Add CQ moderation capability to query_device IB/mlx4: Add CQ moderation capability to query_device IB/uverbs: Add CQ moderation capability to query_device IB/mlx5: Exposing modify CQ callback to uverbs layer IB/mlx4: Exposing modify CQ callback to uverbs layer IB/uverbs: Allow CQ moderation with modify CQ iw_cxgb4: atomically flush the qp iw_cxgb4: only call the cq comp_handler when the cq is armed iw_cxgb4: Fix possible circular dependency locking warning RDMA/bnxt_re: report vlan_id and sl in qp1 recv completion IB/core: Only maintain real QPs in the security lists IB/ocrdma_hw: remove unnecessary code in ocrdma_mbx_dealloc_lkey RDMA/core: Make function rdma_copy_addr return void RDMA/vmw_pvrdma: Add shared receive queue support RDMA/core: avoid uninitialized variable warning in create_udata RDMA/bnxt_re: synchronize poll_cq and req_notify_cq verbs RDMA/bnxt_re: Flush CQ notification Work Queue before destroying QP RDMA/bnxt_re: Set QP state in case of response completion errors RDMA/bnxt_re: Add memory barriers when processing CQ/EQ entries ... |
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Linus Torvalds
|
abc36be236 |
A couple of configfs cleanups:
- proper use of the bool type (Thomas Meyer) - constification of struct config_item_type (Bhumika Goyal) -----BEGIN PGP SIGNATURE----- iQI/BAABCAApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAloLSTALHGhjaEBsc3Qu ZGUACgkQD55TZVIEUYNxfhAAv3cunxiEPEAvs+1xuGd3cZYaxz7qinvIODPxIKoF kRWiuy5PUklRMnJ8seOgJ1p1QokX6Sk4cZ8HcctDJVByqODjOq4K5eaKVN1ZqJoz BUzO/gOqfs64r9yaFIlKfe8nFA+gpUftSeWyv3lThxAIJ1iSbue7OZ/A10tTOS1m RWp9FPepFv+nJMfWqeQU64BsoDQ4kgZ2NcEA+jFxNx5dlmIbLD49tk0lfddvZQXr j5WyAH73iugilLtNUGVOqSzHBY4kUvfCKUV7leirCegyMoGhFtA87m6Wzwbo6ZUI DwQLzWvuPaGv1P2PpNEHfKiNbfIEp75DRyyyf87DD3lc5ffAxQSm28mGuwcr7Rn5 Ow/yWL6ERMzCLExoCzEkXYJISy7T5LIzYDgNggKMpeWxysAduF7Onx7KfW1bTuhK mHvY7iOXCjEvaIVaF8uMKE6zvuY1vCMRXaJ+kC9jcIE3gwhg+2hmQvrdJ2uAFXY+ rkeF2Poj/JlblPU4IKWAjiPUbzB7Lv0gkypCB2pD4riaYIN5qCAgF8ULIGQp2hsO lYW1EEgp5FBop85oSO/HAGWeH9dFg0WaV7WqNRVv0AGXhKjgy+bVd7iYPpvs7mGw z9IqSQDORcG2ETLcFhZgiJpCk/itwqXBD+wgMOjJPP8lL+4kZ8FcuhtY9kc9WlJE Tew= =+tMO -----END PGP SIGNATURE----- Merge tag 'configfs-for-4.15' of git://git.infradead.org/users/hch/configfs Pull configfs updates from Christoph Hellwig: "A couple of configfs cleanups: - proper use of the bool type (Thomas Meyer) - constification of struct config_item_type (Bhumika Goyal)" * tag 'configfs-for-4.15' of git://git.infradead.org/users/hch/configfs: RDMA/cma: make config_item_type const stm class: make config_item_type const ACPI: configfs: make config_item_type const nvmet: make config_item_type const usb: gadget: configfs: make config_item_type const PCI: endpoint: make config_item_type const iio: make function argument and some structures const usb: gadget: make config_item_type structures const dlm: make config_item_type const netconsole: make config_item_type const nullb: make config_item_type const ocfs2/cluster: make config_item_type const target: make config_item_type const configfs: make ci_type field, some pointers and function arguments const configfs: make config_item_type const configfs: Fix bool initialization/comparison |
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Leon Romanovsky
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4190b4e969 |
RDMA/core: Rename kernel modify_cq to better describe its usage
Current ib_modify_cq() is used to set CQ moderation parameters. This patch renames ib_modify_cq() to be rdma_set_cq_moderation(), because the kernel version of RDMA API doesn't need to follow already exposed to user's API pattern (create_XXX/modify_XXX/query_XXX/destroy_XXX) and better to have more accurate name which describes the actual usage. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
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Yonatan Cohen
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18bd907292 |
IB/uverbs: Add CQ moderation capability to query_device
The query_device function can now obtain the maximum values for cq_max_count and cq_period, needed for CQ moderation. cq_max_count is a 16 bits number that determines the number of CQEs to accumulate before generating an event. cq_period is a 16 bits number that determines the timeout in micro seconds from the last event generated, upon which a new event will be generated even if cq_max_count was not reached. Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com> Reviewed-by: Majd Dibbiny <majd@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com> |
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Yonatan Cohen
|
869ddcf8b3 |
IB/uverbs: Allow CQ moderation with modify CQ
Uverbs support in modify_cq for CQ moderation only.
Gives ability to change cq_max_count and cq_period.
CQ moderation enhance performance by moderating the number
of CQEs needed to create an event instead of application
having to suffer from event per-CQE.
To achieve CQ moderation the application needs to set cq_max_count
and cq_period.
cq_max_count - defines the number of CQEs needed to create an event.
cq_period - defines the timeout (micro seconds) between last
event and a new one that will occur even if
cq_max_count was not satisfied
Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Daniel Jurgens
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877add2817 |
IB/core: Only maintain real QPs in the security lists
When modify QP is called on a shared QP update the security context for
the real QP. When security is subsequently enforced the shared QP
handles will be checked as well.
Without this change shared QP handles get added to the port/pkey lists,
which is a bug, because not all shared QP handles will be checked for
access. Also the shared QP security context wouldn't get removed from
the port/pkey lists causing access to free memory and list corruption
when they are destroyed.
Cc: stable@vger.kernel.org
Fixes:
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Yuval Shaia
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e08ce2e82b |
RDMA/core: Make function rdma_copy_addr return void
Function returns zero - make it void. While there make struct net_device const. Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com> Reviewed-by: Parav Pandit <parav@mellanox.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
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Arnd Bergmann
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cb9fd89f91 |
RDMA/core: avoid uninitialized variable warning in create_udata
As Dan pointed out, the rework I did makes it harder for smatch and other
static checkers to figure out what is going on with the uninitialized
pointers.
By open-coding the call in create_udata(), we make it more readable for
both humans and tools.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes:
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Don Hiatt
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19b57c6c44 |
IB/core: Convert OPA AH to IB for Extended LIDs only
When deciding to convert an OPA AH to IB we were incorrectly
including the IB multicast range. At this layer, all Extended
LIDs will be larger than IB_LID_PERMISSIVE. Change comparison
accordingly.
Fixes:
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Parav Pandit
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2e4c85c6ed |
IB/core: Avoid unnecessary return value check
Since there is nothing done with non zero return value, such check is avoided. Signed-off-by: Parav Pandit <parav@mellanox.com> Reviewed-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com> |
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Noa Osherovich
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e1d2e88733 |
IB/core: Add PCI write end padding flags for WQ and QP
There are root complexes that are able to optimize their performance when incoming data is multiple full cache lines. PCI write end padding is the device's ability to pad the ending of incoming packets (scatter) to full cache line such that the last upstream write generated by an incoming packet will be a full cache line. Add a relevant entry to ib_device_cap_flags to report such capability of an RDMA device. Add the QP and WQ create flags: * A QP/WQ created with a scatter end padding flag will cause HW to pad the last upstream write generated by a packet to cache line. User should consider several factors before activating this feature: - In case of high CPU memory load (which may cause PCI back pressure in turn), if a large percent of the writes are partial cache line, this feature should be checked as an optional solution. - This feature might reduce performance if most packets are between one and two cache lines and PCIe throughput has reached its maximum capacity. E.g. 65B packet from the network port will lead to 128B write on PCIe, which may cause traffic on PCIe to reach high throughput. Signed-off-by: Noa Osherovich <noaos@mellanox.com> Reviewed-by: Majd Dibbiny <majd@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com> |
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Parav Pandit
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89548bcafe |
IB/core: Avoid crash on pkey enforcement failed in received MADs
Below kernel crash is observed when Pkey security enforcement fails on
received MADs. This issue is reported in [1].
ib_free_recv_mad() accesses the rmpp_list, whose initialization is
needed before accessing it.
When security enformcent fails on received MADs, MAD processing avoided
due to security checks failed.
OpenSM[3770]: SM port is down
kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
kernel: IP: ib_free_recv_mad+0x44/0xa0 [ib_core]
kernel: PGD 0
kernel: P4D 0
kernel:
kernel: Oops: 0002 [#1] SMP
kernel: CPU: 0 PID: 2833 Comm: kworker/0:1H Tainted: P IO 4.13.4-1-pve #1
kernel: Hardware name: Dell XS23-TY3 /9CMP63, BIOS 1.71 09/17/2013
kernel: Workqueue: ib-comp-wq ib_cq_poll_work [ib_core]
kernel: task: ffffa069c6541600 task.stack: ffffb9a729054000
kernel: RIP: 0010:ib_free_recv_mad+0x44/0xa0 [ib_core]
kernel: RSP: 0018:ffffb9a729057d38 EFLAGS: 00010286
kernel: RAX: ffffa069cb138a48 RBX: ffffa069cb138a10 RCX: 0000000000000000
kernel: RDX: ffffb9a729057d38 RSI: 0000000000000000 RDI: ffffa069cb138a20
kernel: RBP: ffffb9a729057d60 R08: ffffa072d2d49800 R09: ffffa069cb138ae0
kernel: R10: ffffa069cb138ae0 R11: ffffa072b3994e00 R12: ffffb9a729057d38
kernel: R13: ffffa069d1c90000 R14: 0000000000000000 R15: ffffa069d1c90880
kernel: FS: 0000000000000000(0000) GS:ffffa069dba00000(0000) knlGS:0000000000000000
kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: CR2: 0000000000000008 CR3: 00000011f51f2000 CR4: 00000000000006f0
kernel: Call Trace:
kernel: ib_mad_recv_done+0x5cc/0xb50 [ib_core]
kernel: __ib_process_cq+0x5c/0xb0 [ib_core]
kernel: ib_cq_poll_work+0x20/0x60 [ib_core]
kernel: process_one_work+0x1e9/0x410
kernel: worker_thread+0x4b/0x410
kernel: kthread+0x109/0x140
kernel: ? process_one_work+0x410/0x410
kernel: ? kthread_create_on_node+0x70/0x70
kernel: ? SyS_exit_group+0x14/0x20
kernel: ret_from_fork+0x25/0x30
kernel: RIP: ib_free_recv_mad+0x44/0xa0 [ib_core] RSP: ffffb9a729057d38
kernel: CR2: 0000000000000008
[1] : https://www.spinics.net/lists/linux-rdma/msg56190.html
Fixes:
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Leon Romanovsky
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fec99ededf |
RDMA/umem: Avoid partial declaration of non-static function
The RDMA/umem uses generic RB-trees macros to generate various ib_umem access functions. The generation is performed with INTERVAL_TREE_DEFINE macro, which allows one of two modes: declare all functions as static or declare none of the function to be static. The second mode of operation produces the following sparse errors: drivers/infiniband/core/umem_rbtree.c:69:1: warning: symbol 'rbt_ib_umem_iter_first' was not declared. Should it be static? drivers/infiniband/core/umem_rbtree.c:69:1: warning: symbol 'rbt_ib_umem_iter_next' was not declared. Should it be static? Code relocation together with declaration of such functions to be "static" solves the issue. Because there is no need to have separate file for two functions, let's consolidate umem_rtree.c and umem_odp.c into one file. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
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Linus Torvalds
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ead751507d |
License cleanup: add SPDX license identifiers to some files
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull initial SPDX identifiers from Greg KH:
"License cleanup: add SPDX license identifiers to some files
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the
'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally
binding shorthand, which can be used instead of the full boiler plate
text.
This patch is based on work done by Thomas Gleixner and Kate Stewart
and Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset
of the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to
license had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied
to a file was done in a spreadsheet of side by side results from of
the output of two independent scanners (ScanCode & Windriver)
producing SPDX tag:value files created by Philippe Ombredanne.
Philippe prepared the base worksheet, and did an initial spot review
of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537
files assessed. Kate Stewart did a file by file comparison of the
scanner results in the spreadsheet to determine which SPDX license
identifier(s) to be applied to the file. She confirmed any
determination that was not immediately clear with lawyers working with
the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained
>5 lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that
was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that
became the concluded license(s).
- when there was disagreement between the two scanners (one detected
a license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply
(and which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases,
confirmation by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.
The Windriver scanner is based on an older version of FOSSology in
part, so they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot
checks in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect
the correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial
patch version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch
license was not GPL-2.0 WITH Linux-syscall-note to ensure that the
applied SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
License cleanup: add SPDX license identifier to uapi header files with a license
License cleanup: add SPDX license identifier to uapi header files with no license
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
|
|
|
Greg Kroah-Hartman
|
b24413180f |
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
|
|
Doug Ledford
|
5c08681b48 |
Merge branch 'k.o/for-rc' into k.o/for-next
Pick up the missing netlink oops fix Signed-off-by: Doug Ledford <dledford@redhat.com> |
|
|
Leon Romanovsky
|
287683d027 |
RDMA/nldev: Enforce device index check for port callback
IB device index is nldev's handler and it should be checked always.
Fixes:
|
|
|
Michael J. Ruhl
|
b4d91aeb6e |
RDMA/netlink: OOPs in rdma_nl_rcv_msg() from misinterpreted flag
rdma_nl_rcv_msg() checks to see if it should use the .dump() callback
or the .doit() callback. The check is done with this check:
if (flags & NLM_F_DUMP) ...
The NLM_F_DUMP flag is two bits (NLM_F_ROOT | NLM_F_MATCH).
When an RDMA_NL_LS message (response) is received, the bit used for
indicating an error is the same bit as NLM_F_ROOT.
NLM_F_ROOT == (0x100) == RDMA_NL_LS_F_ERR.
ibacm sends a response with the RDMA_NL_LS_F_ERR bit set if an error
occurs in the service. The current code then misinterprets the
NLM_F_DUMP bit and trys to call the .dump() callback.
If the .dump() callback for the specified request is not available
(which is true for the RDMA_NL_LS messages) the following Oops occurs:
[ 4555.960256] BUG: unable to handle kernel NULL pointer dereference at
(null)
[ 4555.969046] IP: (null)
[ 4555.972664] PGD 10543f1067 P4D 10543f1067 PUD 1033f93067 PMD 0
[ 4555.979287] Oops: 0010 [#1] SMP
[ 4555.982809] Modules linked in: rpcrdma ib_isert iscsi_target_mod
target_core_mod ib_iser libiscsi scsi_transport_iscsi ib_ipoib rdma_ucm ib_ucm
ib_uverbs ib_umad rdma_cm ib_cm iw_cm dm_mirror dm_region_hash dm_log dm_mod
dax sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp kvm irqbypass
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel crypto_simd
glue_helper cryptd hfi1 rdmavt iTCO_wdt iTCO_vendor_support ib_core mei_me
lpc_ich pcspkr mei ioatdma sg shpchp i2c_i801 mfd_core wmi ipmi_si ipmi_devintf
ipmi_msghandler acpi_power_meter acpi_pad nfsd auth_rpcgss nfs_acl lockd grace
sunrpc ip_tables ext4 mbcache jbd2 sd_mod mgag200 drm_kms_helper syscopyarea
sysfillrect sysimgblt fb_sys_fops ttm igb ahci crc32c_intel ptp libahci
pps_core drm dca libata i2c_algo_bit i2c_core
[ 4556.061190] CPU: 54 PID: 9841 Comm: ibacm Tainted: G I
4.14.0-rc2+ #6
[ 4556.069667] Hardware name: Intel Corporation S2600WT2/S2600WT2, BIOS
SE5C610.86B.01.01.0008.021120151325 02/11/2015
[ 4556.081339] task: ffff880855f42d00 task.stack: ffffc900246b4000
[ 4556.087967] RIP: 0010: (null)
[ 4556.092166] RSP: 0018:ffffc900246b7bc8 EFLAGS: 00010246
[ 4556.098018] RAX: ffffffff81dbe9e0 RBX: ffff881058bb1000 RCX:
0000000000000000
[ 4556.105997] RDX: 0000000000001100 RSI: ffff881058bb1320 RDI:
ffff881056362000
[ 4556.113984] RBP: ffffc900246b7bf8 R08: 0000000000000ec0 R09:
0000000000001100
[ 4556.121971] R10: ffff8810573a5000 R11: 0000000000000000 R12:
ffff881056362000
[ 4556.129957] R13: 0000000000000ec0 R14: ffff881058bb1320 R15:
0000000000000ec0
[ 4556.137945] FS: 00007fe0ba5a38c0(0000) GS:ffff88105f080000(0000)
knlGS:0000000000000000
[ 4556.147000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4556.153433] CR2: 0000000000000000 CR3: 0000001056f5d003 CR4:
00000000001606e0
[ 4556.161419] Call Trace:
[ 4556.164167] ? netlink_dump+0x12c/0x290
[ 4556.168468] __netlink_dump_start+0x186/0x1f0
[ 4556.173357] rdma_nl_rcv_msg+0x193/0x1b0 [ib_core]
[ 4556.178724] rdma_nl_rcv+0xdc/0x130 [ib_core]
[ 4556.183604] netlink_unicast+0x181/0x240
[ 4556.187998] netlink_sendmsg+0x2c2/0x3b0
[ 4556.192392] sock_sendmsg+0x38/0x50
[ 4556.196299] SYSC_sendto+0x102/0x190
[ 4556.200308] ? __audit_syscall_entry+0xaf/0x100
[ 4556.205387] ? syscall_trace_enter+0x1d0/0x2b0
[ 4556.210366] ? __audit_syscall_exit+0x209/0x290
[ 4556.215442] SyS_sendto+0xe/0x10
[ 4556.219060] do_syscall_64+0x67/0x1b0
[ 4556.223165] entry_SYSCALL64_slow_path+0x25/0x25
[ 4556.228328] RIP: 0033:0x7fe0b9db2a63
[ 4556.232333] RSP: 002b:00007ffc55edc260 EFLAGS: 00000293 ORIG_RAX:
000000000000002c
[ 4556.240808] RAX: ffffffffffffffda RBX: 0000000000000010 RCX:
00007fe0b9db2a63
[ 4556.248796] RDX: 0000000000000010 RSI: 00007ffc55edc280 RDI:
000000000000000d
[ 4556.256782] RBP: 00007ffc55edc670 R08: 00007ffc55edc270 R09:
000000000000000c
[ 4556.265321] R10: 0000000000000000 R11: 0000000000000293 R12:
00007ffc55edc280
[ 4556.273846] R13: 000000000260b400 R14: 000000000000000d R15:
0000000000000001
[ 4556.282368] Code: Bad RIP value.
[ 4556.286629] RIP: (null) RSP: ffffc900246b7bc8
[ 4556.293013] CR2: 0000000000000000
[ 4556.297292] ---[ end trace 8d67abcfd10ec209 ]---
[ 4556.305465] Kernel panic - not syncing: Fatal exception
[ 4556.313786] Kernel Offset: disabled
[ 4556.321563] ---[ end Kernel panic - not syncing: Fatal exception
[ 4556.328960] ------------[ cut here ]------------
Special case RDMA_NL_LS response messages to call the appropriate
callback.
Additionally, make sure that the .dump() callback is not NULL
before calling it.
Fixes:
|
|
|
Parav Pandit
|
5a3dc32372 |
IB/cm: Fix memory corruption in handling CM request
In recent code, two path record entries are alwasy cleared while
allocated could be either one or two path record entries.
This leads to zero out of unallocated memory.
This fix initializes alternative path record only when alternative path
is set.
While we are at it, path record allocation doesn't check for OPA
alternative path, but rest of the code checks for OPA alternative path.
Path record allocation code doesn't check for OPA alternative LID.
This can further lead to memory corruption when only one path record is
allocated, but there is actually alternative OPA path record present in CM
request.
Cc: <stable@vger.kernel.org> # v4.12+
Fixes:
|
|
|
Bhumika Goyal
|
6ace4f6bbc |
RDMA/cma: make config_item_type const
Make these structures const as they are either passed to the functions having the argument as const or stored as a reference in the "ci_type" const field of a config_item structure. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Acked-by: Doug Ledford <dledford@redhat.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Christoph Hellwig <hch@lst.de> |
|
|
Doug Ledford
|
754137a769 |
Merge branch 'for-next-early' into for-next
The early for-next branch was based on v4.14-rc2, while the shared pull request I got from Mellanox used a v4.14-rc4 base. I'm making the branch that was the shared Mellanox pull request the new for-next branch and merging the early for-next branch into it. Signed-off-by: Doug Ledford <dledford@redhat.com> |
|
|
Parav Pandit
|
39baf10310 |
IB/core: Fix use workqueue without WQ_MEM_RECLAIM
The IB/core provides address resolution service and invokes callback handler when address resolve request completes of requester in worker thread context. Such caller might allocate or free memory in callback handler depending on the completion status to make further progress or to terminate a connection. Most ULPs resolve route which involves allocating route entry and path record elements in callback event handler. It has been noticed that WQ_MEM_RECLAIM flag should not be used for workers that tend to allocate memory in this [1] thread discussion. In order to mitigate this situation, WQ_MEM_RECLAIM flag was dropped for other such WQs in this [2] patch. Similar problem might arise with address resolution path, though its not yet noticed. The ib_addr workqueue is not memory reclaim path due to its nature of invoking callback that might allocate memory or don't free any memory under memory pressure. [1] https://www.spinics.net/lists/linux-rdma/msg53239.html [2] https://www.spinics.net/lists/linux-rdma/msg53416.html Fixes: |
|
|
Parav Pandit
|
79c4d80b43 |
IB/core: Fix unable to change lifespan entry for hw_counters
This patch fixes the case where 'lifespan' entry of the hw_counters
is not writable. Currently write callback is not exposed for for
the hw_counters sysfs operation. Due to this, modifying lifespan
value results into permission denied error in below example.
echo 10 > /sys/class/infiniband/mlx5_0/ports/1/hw_counters/lifespan
-bash: /sys/class/infiniband/mlx5_0/ports/1/hw_counters/lifespan:
Permission denied
This patch adds the hook to modify any attribute which implements
store() operation.
Fixes:
|
|
|
Parav Pandit
|
c0348eb069 |
IB: Let ib_core resolve destination mac address
Since IB/core resolves the destination mac address for user and kernel consumers, avoid resolving in multiple provider drivers. Only ib_core resolves DMAC now, therefore resolve_eth_dmac is removed as exported symbol. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com> |
|
|
Parav Pandit
|
5cda6587fe |
IB/core: Introduce and use rdma_create_user_ah
Introduce rdma_create_user_ah API which allows passing udata to provider driver and additionally which resolves DMAC for RoCE. ib_resolve_eth_dmac() resolves destination mac address for unicast, multicast, link local ipv4 mapped ipv6 and ipv6 destination gid entry. This allows all RoCE provider drivers to avoid duplicating such code. Such change brings consistency where IB core always resolves dmac and pass it to RoCE provider drivers for user and kernel consumers, with this ah_attr->roce.dmac is always an input field for provider drivers. This uniformity avoids exporting ib_resolve_eth_dmac symbol to providers or other modules. Therefore its removed as exported symbol at later in the patch series. Now uverbs and umad both makes use of rdma_create_user_ah API which fixes the issue where umad has invalid DMAC for address. Signed-off-by: Parav Pandit <parav@mellanox.com> Reviewed-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com> |
|
|
Bart Van Assche
|
69abc735f4 |
RDMA/uverbs: Make the code in ib_uverbs_cmd_verbs() less confusing
This patch reduces the number of #ifdefs and also avoids that
smatch reports the following:
drivers/infiniband/core/uverbs_ioctl.c:276: ib_uverbs_cmd_verbs() warn: if statement not indented
drivers/infiniband/core/uverbs_ioctl.c:280: ib_uverbs_cmd_verbs() warn: possible memory leak of 'ctx'
drivers/infiniband/core/uverbs_ioctl.c:315: ib_uverbs_cmd_verbs() warn: if statement not indented
References: commit
|
|
|
Bart Van Assche
|
d39dcd6a2d |
RDMA/iwcm: Remove a set-but-not-used variable
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
|
|
Bart Van Assche
|
c0b64f58e8 |
RDMA/cma: Avoid triggering undefined behavior
According to the C standard the behavior of computations with integer operands is as follows: * A computation involving unsigned operands can never overflow, because a result that cannot be represented by the resulting unsigned integer type is reduced modulo the number that is one greater than the largest value that can be represented by the resulting type. * The behavior for signed integer underflow and overflow is undefined. Hence only use unsigned integers when checking for integer overflow. This patch is what I came up with after having analyzed the following smatch warnings: drivers/infiniband/core/cma.c:3448: cma_resolve_ib_udp() warn: signed overflow undefined. 'offset + conn_param->private_data_len < conn_param->private_data_len' drivers/infiniband/core/cma.c:3505: cma_connect_ib() warn: signed overflow undefined. 'offset + conn_param->private_data_len < conn_param->private_data_len' Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Acked-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
|
|
Bart Van Assche
|
401c6ae363 |
IB/cm: Suppress gcc 7 fall-through complaints
Avoid that gcc 7 reports the following warning when building with W=1: warning: this statement may fall through [-Wimplicit-fallthrough=] Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Acked-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
|
|
Colin Ian King
|
318a8ab7e8 |
IB/core: remove redundant check on prot_sg_cnt
prot_sg_cnt cannot be zero as a previous check on ret (from which
prot_sg_cnt is assigned) returns -ENOMEM if is it zero. Since
it cannot be zero we can simplify the code by removing the non
-zero check on prot_sg_cnt and redundant else statement.
Detected by CoverityScan, COD#1357188 ("Logically dead code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
|
|
|
Bart Van Assche
|
9d18717790 |
IB/core: Simplify sa_path_set_[sd]lid() calls
Instead of making every caller convert the second argument of sa_path_set_slid() and sa_path_set_dlid() to big endian format, make these two functions accept LIDs in CPU endian format. This patch does not change any functionality. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Cc: Don Hiatt <don.hiatt@intel.com> Cc: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
|
|
Don Hiatt
|
6588e412fe |
IB/core: Do not warn on lid conversions for OPA
On OPA devices the user_mad recv_handler can receive 32Bit LIDs
(e.g. OPA_PERMISSIVE_LID) and it is okay to lose the upper 16 bits
of the LID as this information is obtained elsewhere. Do not issue
a warning when calling ib_lid_be16() in this case by masking out
the upper 16Bits.
[75667.310846] ------------[ cut here ]------------
[75667.316447] WARNING: CPU: 0 PID: 1718 at ./include/rdma/ib_verbs.h:3799 recv_handler+0x15a/0x170 [ib_umad]
[75667.327640] Modules linked in: ib_ipoib hfi1(E) rdmavt(E) rdma_ucm(E) ib_ucm(E) rdma_cm(E) ib_cm(E) iw_cm(E) ib_umad(E) ib_uverbs(E) ib_core(E) libiscsi scsi_transport_iscsi dm_mirror dm_region_hash dm_log dm_mod dax x86_pkg_temp_thermal intel_powerclamp coretemp kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel mei_me ipmi_si iTCO_wdt iTCO_vendor_support crypto_simd ipmi_devintf pcspkr mei sg i2c_i801 glue_helper lpc_ich shpchp ioatdma mfd_core wmi ipmi_msghandler cryptd acpi_power_meter acpi_pad nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs libcrc32c sd_mod mgag200 drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm igb ptp ahci libahci pps_core crc32c_intel libata dca i2c_algo_bit i2c_core [last unloaded: ib_core]
[75667.407704] CPU: 0 PID: 1718 Comm: kworker/0:1H Tainted: G W I E 4.13.0-rc7+ #1
[75667.417310] Hardware name: Intel Corporation S2600WT2/S2600WT2, BIOS SE5C610.86B.01.01.0008.021120151325 02/11/2015
[75667.429555] Workqueue: ib-comp-wq ib_cq_poll_work [ib_core]
[75667.436360] task: ffff88084a718000 task.stack: ffffc9000a424000
[75667.443549] RIP: 0010:recv_handler+0x15a/0x170 [ib_umad]
[75667.450090] RSP: 0018:ffffc9000a427ce8 EFLAGS: 00010286
[75667.456508] RAX: 00000000ffffffff RBX: ffff88085159ce80 RCX: 0000000000000000
[75667.465094] RDX: ffff88085a47b068 RSI: 0000000000000000 RDI: ffff88085159cf00
[75667.473668] RBP: ffffc9000a427d38 R08: 000000000001efc0 R09: ffff88085159ce80
[75667.482228] R10: ffff88085f007480 R11: ffff88084acf20e8 R12: ffff88085a47b020
[75667.490824] R13: ffff881056842e10 R14: ffff881056840200 R15: ffff88104c8d0800
[75667.499390] FS: 0000000000000000(0000) GS:ffff88085f400000(0000) knlGS:0000000000000000
[75667.509028] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[75667.516080] CR2: 00007f9e4b3d9000 CR3: 0000000001c09000 CR4: 00000000001406f0
[75667.524664] Call Trace:
[75667.528044] ? find_mad_agent+0x7c/0x1b0 [ib_core]
[75667.534031] ? ib_mark_mad_done+0x73/0xa0 [ib_core]
[75667.540142] ib_mad_recv_done+0x423/0x9b0 [ib_core]
[75667.546215] __ib_process_cq+0x5d/0xb0 [ib_core]
[75667.552007] ib_cq_poll_work+0x20/0x60 [ib_core]
[75667.557766] process_one_work+0x149/0x360
[75667.562844] worker_thread+0x4d/0x3c0
[75667.567529] kthread+0x109/0x140
[75667.571713] ? rescuer_thread+0x380/0x380
[75667.576775] ? kthread_park+0x60/0x60
[75667.581447] ret_from_fork+0x25/0x30
[75667.586014] Code: 43 4a 0f b6 45 c6 88 43 4b 48 8b 45 b0 48 89 43 4c 48 8b 45 b8 48 89 43 54 8b 45 c0 0f c8 89 43 5c e9 79 ff ff ff e8 16 4e fa e0 <0f> ff e9 42 ff ff ff 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00
[75667.608323] ---[ end trace cf26df27c9597264 ]---
Fixes:
|
|
|
Shiraz Saleem
|
04eae42740 |
RDMA/iwpm: Properly mark end of NL messages
Commit |
|
|
Arnd Bergmann
|
40a203396c |
IB/uverbs: clean up INIT_UDATA() macro usage
After changing INIT_UDATA_BUF_OR_NULL() to an inline function, this does the same change to INIT_UDATA for consistency. I'm keeping it separate as this part is much larger and we wouldn't want to backport this to stable kernels if we ever want to address the gcc warnings by backporting the first patch. Again, using an inline function gives us better type safety here among other issues with macros. I'm using u64_to_user_ptr() to convert the user pointer to simplify the logic rather than adding lots of new type casts. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Doug Ledford <dledford@redhat.com> |
|
|
Arnd Bergmann
|
12f727721e |
IB/uverbs: clean up INIT_UDATA_BUF_OR_NULL usage
We get a harmless warning about the fact that we use the result of a
multiplication as a condition:
drivers/infiniband/core/uverbs_main.c: In function 'ib_uverbs_write':
drivers/infiniband/core/uverbs_main.c:787:40: error: '*' in boolean context, suggest '&&' instead [-Werror=int-in-bool-context]
drivers/infiniband/core/uverbs_main.c:787:117: error: '*' in boolean context, suggest '&&' instead [-Werror=int-in-bool-context]
drivers/infiniband/core/uverbs_main.c:790:50: error: '*' in boolean context, suggest '&&' instead [-Werror=int-in-bool-context]
drivers/infiniband/core/uverbs_main.c:790:151: error: '*' in boolean context, suggest '&&' instead [-Werror=int-in-bool-context]
This avoids the problem by using an inline function in place of
the macro.
Fixes:
|
|
|
Colin Ian King
|
8f63d4b1d5 |
IB/core: fix spelling mistake: "aceess" -> "access"
Trivial fix to spelling mistake in WARN message Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
|
|
Parav Pandit
|
73827a605b |
IB/core: Fix qp_sec use after free access
When security_ib_alloc_security fails, qp->qp_sec memory is freed.
However ib_destroy_qp still tries to access this memory which result
in kernel crash. So its initialized to NULL to avoid such access.
Fixes:
|
|
|
Leon Romanovsky
|
78b1beb099 |
IB/core: Fix typo in the name of the tag-matching cap struct
The tag matching functionality is implemented by mlx5 driver
by extending XRQ, however this internal kernel information was
exposed to user space applications with *xrq* name instead of *tm*.
This patch renames *xrq* to *tm* to handle that.
Fixes:
|
|
|
Linus Torvalds
|
ded8503200 |
First -rc update for 4.14 kernel
- Smattering of miscellanous fixes - A five patch series for i40iw that had a patch (5/5) that was larger than I would like, but I took it because it's needed for large scale users - An 8 patch series for bnxt_re that landed right as I was leaving on PTO and so had to wait until now...they are all appropriate fixes for -rc IMO -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJZxU+WAAoJELgmozMOVy/dQwEP/ja5+3zNbkX69T/ch5Q9koKO 7O1Onw/ePn9va/hC0IJm910syeyUcnkl+0GJH9JhS/Q/7bd9S97TjdSMjZpOSTjA qCkFWOJ2zZPsGVijsiFF+BQa1jPgUc2VRwbuC4sWm19Ma8iLZ86aXKot9prBPoU7 dEnpwX5LrUIQCcNmWaudXoctiqN3y6oQzIobzGJXXQzlT5VPudIPYKUZMixuLYH2 XXJ5MtrHlvB+aKIURcHey03q8Vah5HQ6P467249fNBsLoYbycx7aPYhR7NyFDEEX IkucBT7FOZUqcklxIXQHRQOTvj8dru91TvsZ6aNVPuS6SvYTf95cSFu7yBBP+DNd g3UWpuRXwvJYQosXbpHhGNevq2M3XLZmzEvOBul8j7Fq/4rw6HxFYtA9um/8V4h9 UxJjjAu59gbkmnrG2cGJCLwnC75BId84cZ4Nc8vfB/mhShE3n8YjRXfb1clS9DB7 CTNLp7AtFujTdWc4iQ3vMZ9cCILQtKnSXvnETHq65WDnqfaPT7NfwIrFxGHDUa5N m94l+Neg3rNrsxcRFxXQ9HzmG2ZTiGK956Nvpxn6/cDD6ZVd6RQBOYjZ4QxVd+lS jdkA0gImS88HlupyosILMPjQm+BCqmDjpZx/yWyRRCBe7XP1MgX9S2ySDqFgiy1j J9KGzXFIV73DA8nVfNtM =iiKF -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma fixes from Doug Ledford: - Smattering of miscellanous fixes - A five patch series for i40iw that had a patch (5/5) that was larger than I would like, but I took it because it's needed for large scale users - An 8 patch series for bnxt_re that landed right as I was leaving on PTO and so had to wait until now...they are all appropriate fixes for -rc IMO * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (22 commits) bnxt_re: Don't issue cmd to delete GID for QP1 GID entry before the QP is destroyed bnxt_re: Fix memory leak in FRMR path bnxt_re: Remove RTNL lock dependency in bnxt_re_query_port bnxt_re: Fix race between the netdev register and unregister events bnxt_re: Free up devices in module_exit path bnxt_re: Fix compare and swap atomic operands bnxt_re: Stop issuing further cmds to FW once a cmd times out bnxt_re: Fix update of qplib_qp.mtu when modified i40iw: Add support for port reuse on active side connections i40iw: Add missing VLAN priority i40iw: Call i40iw_cm_disconn on modify QP to disconnect i40iw: Prevent multiple netdev event notifier registrations i40iw: Fail open if there are no available MSI-X vectors RDMA/vmw_pvrdma: Fix reporting correct opcodes for completion IB/bnxt_re: Fix frame stack compilation warning IB/mlx5: fix debugfs cleanup IB/ocrdma: fix incorrect fall-through on switch statement IB/ipoib: Suppress the retry related completion errors iw_cxgb4: remove the stid on listen create failure iw_cxgb4: drop listen destroy replies if no ep found ... |
|
|
Alex Estrin
|
e6f9bc34d3 |
IB/core: Fix for core panic
Build with the latest patches resulted in panic:
11384.486289] BUG: unable to handle kernel NULL pointer dereference at
(null)
[11384.486293] IP: (null)
[11384.486295] PGD 0
[11384.486295] P4D 0
[11384.486296]
[11384.486299] Oops: 0010 [#1] SMP
......... snip ......
[11384.486401] CPU: 0 PID: 968 Comm: kworker/0:1H Tainted: G W O
4.13.0-a-stream-20170825 #1
[11384.486402] Hardware name: Intel Corporation S2600WT2R/S2600WT2R,
BIOS SE5C610.86B.01.01.0014.121820151719 12/18/2015
[11384.486418] Workqueue: ib-comp-wq ib_cq_poll_work [ib_core]
[11384.486419] task: ffff880850579680 task.stack: ffffc90007fec000
[11384.486420] RIP: 0010: (null)
[11384.486420] RSP: 0018:ffffc90007fef970 EFLAGS: 00010206
[11384.486421] RAX: ffff88084cfe8000 RBX: ffff88084dce4000 RCX:
ffffc90007fef978
[11384.486422] RDX: 0000000000000000 RSI: 0000000000000001 RDI:
ffff88084cfe8000
[11384.486422] RBP: ffffc90007fefab0 R08: 0000000000000000 R09:
ffff88084dce4080
[11384.486423] R10: ffffffffa02d7f60 R11: 0000000000000000 R12:
ffff88105af65a00
[11384.486423] R13: ffff88084dce4000 R14: 000000000000c000 R15:
000000000000c000
[11384.486424] FS: 0000000000000000(0000) GS:ffff88085f400000(0000)
knlGS:0000000000000000
[11384.486425] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[11384.486425] CR2: 0000000000000000 CR3: 0000000001c09000 CR4:
00000000001406f0
[11384.486426] Call Trace:
[11384.486431] ? is_valid_mcast_lid.isra.21+0xfb/0x110 [ib_core]
[11384.486436] ib_attach_mcast+0x6f/0xa0 [ib_core]
[11384.486441] ipoib_mcast_attach+0x81/0x190 [ib_ipoib]
[11384.486443] ipoib_mcast_join_complete+0x354/0xb40 [ib_ipoib]
[11384.486448] mcast_work_handler+0x330/0x6c0 [ib_core]
[11384.486452] join_handler+0x101/0x220 [ib_core]
[11384.486455] ib_sa_mcmember_rec_callback+0x54/0x80 [ib_core]
[11384.486459] recv_handler+0x3a/0x60 [ib_core]
[11384.486462] ib_mad_recv_done+0x423/0x9b0 [ib_core]
[11384.486466] __ib_process_cq+0x5d/0xb0 [ib_core]
[11384.486469] ib_cq_poll_work+0x20/0x60 [ib_core]
[11384.486472] process_one_work+0x149/0x360
[11384.486474] worker_thread+0x4d/0x3c0
[11384.486487] kthread+0x109/0x140
[11384.486488] ? rescuer_thread+0x380/0x380
[11384.486489] ? kthread_park+0x60/0x60
[11384.486490] ? kthread_park+0x60/0x60
[11384.486493] ret_from_fork+0x25/0x30
[11384.486493] Code: Bad RIP value.
[11384.486493] Code: Bad RIP value.
[11384.486496] RIP: (null) RSP: ffffc90007fef970
[11384.486497] CR2: 0000000000000000
[11384.486531] ---[ end trace b1acec6fb4ff6e75 ]---
[11384.532133] Kernel panic - not syncing: Fatal exception
[11384.536541] Kernel Offset: disabled
[11384.969491] ---[ end Kernel panic - not syncing: Fatal exception
[11384.976875] sched: Unexpected reschedule of offline CPU#1!
[11384.983646] ------------[ cut here ]------------
Rdma device driver may not have implemented (*get_link_layer)()
so it can not be called directly. Should use appropriate helper function.
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Fixes:
|
|
|
Linus Torvalds
|
ad9a19d003 |
More RDMA work and some op-structure constification from Chuck Lever,
and a small cleanup to our xdr encoding. -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJZst0LAAoJECebzXlCjuG+o30QALbchoIvs7BiDrUxYMfJ2nCa 7UW69STwX79B3NZTg7RrScFTLPEFW9DMpb/Og7AYTH3/wdgGYQNM1UxGUYe7IxSN xemH7BSmQzJ7ryaxouO/jskUw5nvNRXhY0PMxJApjrCs837vTjduIVw9zUa8EDeH 9toxpTM4k3z/1myj60PuHnuQF9EyLDL6W581loDF04nQB3pVRbAZOh1lUeqMgLUd 7IF+CDECFcjL7oZSA3wDGpsVySLdZ+GYxloFIDO/d8kHEsZD3OaN2MdfRki8EOSQ qibTYO0284VeyNLUOIHjspqbDh0Lr2F7VolMmlM5GF1IuApih0/QYidqsH6/As3U JIAK53vgqZfK2qI0ud7dGGFEnT/vlE7pQiXiza36xI8YZu4Xz6uGbM41p38RU8jO 3fr38xdPqqO7YE6F7ZUHYyrmW81Vi0lFdQkw1DBEipHV8UquuCmdtAeR9xgDsdQ/ LsMVevM1mF+19krOIGbBnENq1GX78ecfHEYGxlTjf/MeO4JYl+8/x7Ow2e/ZbwSa 7hpUeCiVuVmy1hqOEtraBl5caAG0hCE8PeGRrdr5dA6ZS9YTm0ANgtxndKabwDh2 CjXF3gRnQNUGdFGCi/fmvfb89tVNj1tL52pbQqfgOb/VFrrL328vyNNg/1p2VY4Q qzmKtxZhi/XBewQjaSQl =E3UQ -----END PGP SIGNATURE----- Merge tag 'nfsd-4.14' of git://linux-nfs.org/~bfields/linux Pull nfsd updates from Bruce Fields: "More RDMA work and some op-structure constification from Chuck Lever, and a small cleanup to our xdr encoding" * tag 'nfsd-4.14' of git://linux-nfs.org/~bfields/linux: svcrdma: Estimate Send Queue depth properly rdma core: Add rdma_rw_mr_payload() svcrdma: Limit RQ depth svcrdma: Populate tail iovec when receiving nfsd: Incoming xdr_bufs may have content in tail buffer svcrdma: Clean up svc_rdma_build_read_chunk() sunrpc: Const-ify struct sv_serv_ops nfsd: Const-ify NFSv4 encoding and decoding ops arrays sunrpc: Const-ify instances of struct svc_xprt_ops nfsd4: individual encoders no longer see error cases nfsd4: skip encoder in trivial error cases nfsd4: define ->op_release for compound ops nfsd4: opdesc will be useful outside nfs4proc.c nfsd4: move some nfsd4 op definitions to xdr4.h |
|
|
Davidlohr Bueso
|
f808c13fd3 |
lib/interval_tree: fast overlap detection
Allow interval trees to quickly check for overlaps to avoid unnecesary tree lookups in interval_tree_iter_first(). As of this patch, all interval tree flavors will require using a 'rb_root_cached' such that we can have the leftmost node easily available. While most users will make use of this feature, those with special functions (in addition to the generic insert, delete, search calls) will avoid using the cached option as they can do funky things with insertions -- for example, vma_interval_tree_insert_after(). [jglisse@redhat.com: fix deadlock from typo vm_lock_anon_vma()] Link: http://lkml.kernel.org/r/20170808225719.20723-1-jglisse@redhat.com Link: http://lkml.kernel.org/r/20170719014603.19029-12-dave@stgolabs.net Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Doug Ledford <dledford@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Cc: David Airlie <airlied@linux.ie> Cc: Jason Wang <jasowang@redhat.com> Cc: Christian Benvenuti <benve@cisco.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
|
|
Linus Torvalds
|
015a9e66b9 |
RDMA/netlink: clean up message validity array initializer
The fix in the parent made me look at that function, and react to how illogical and illegible the array initializer was. Use named array indexes to make it clearer what is going on, and make the initializer not depend silently on the exact index numbers. [ The initializer now also shows an odd inconsistency in the naming: note the IWCM vs IWPM.. - Linus ] Cc: Leon Romanovsky <leonro@mellanox.com> Cc: Doug Ledford <dledford@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
|
|
Leon Romanovsky
|
8b2c7e7a3c |
RDAM/netlink: Fix out-of-bound access while checking message validity
The netlink message sent with type == 0, which doesn't have any client
behind it, caused to the overflow in max_num_ops array.
Fix it by declaring zero number of ops for the first client.
Fixes:
|
|
|
Chuck Lever
|
0062818298 |
rdma core: Add rdma_rw_mr_payload()
The amount of payload per MR depends on device capabilities and the memory registration mode in use. The new rdma_rw API hides both, making it difficult for ULPs to determine how large their transport send queues need to be. Expose the MR payload information via a new API. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-by: Doug Ledford <dledford@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com> |
|
|
Linus Torvalds
|
aa9d4648c2 |
Updates for 4.14 kernel merge window
- Lots of hfi1 driver updates (mixed with a few qib and core updates as
well)
- rxe updates
- various mlx updates
- Set default roce type to RoCEv2
- Several larger fixes for bnxt_re that were too big for -rc
- Several larger fixes for qedr that, likewise, were too big for -rc
- Misc core changes
- Make the hns_roce driver compilable on arches other than aarch64 so we
can more easily debug build issues related to it
- Add rdma-netlink infrastructure updates
- Add automatic IRQ affinity infrastructure
- Add 32bit lid support
- Lots of misc fixes across the subsystem from random people
- Autoloading of RDMA netlink modules
- PCI pool cleanups from Romain Perier
- mlx5 driver feature additions and fixes
- Hardware tag matchine feature
- Fix sleeping in atomic when resolving roce ah
- Add experimental ioctl interface as posted to linux-api@
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Merge tag 'for-linus-ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma updates from Doug Ledford:
"This is a big pull request.
Of note is that I'm sending you the new ioctl API for the rdma
subsystem. We put it up on linux-api@, but didn't get much response.
The API is complex, but it solves two different problems in one go:
1) The bi-directional nature of the RDMA file write calls, which
created the security hole we had to handle (and for which the fix
is now causing problems for systems in production, we were a bit
over zealous in the fix and the ability to open a device, then
fork, then create new queue pairs on the device and use them is
broken).
2) The bloat caused by different vendors implementing extensions to
the base verbs API. Each vendor's hardware is slightly different,
and the hardware might be suitable for one extension but not
another.
By the time we add generic extensions for all the different ways
that the different hardware can offload things, the API becomes
bloated. Things like our completion structs have started to exceed
a cache line in size because of all the elements needed to support
this. That in turn shows up heavily in the performance graphs with
a noticable drop in performance on 100Gigabit links as our
completion structs go from occupying one cache line to 1+.
This API makes things like the completion structs modular in a
very similar way to netlink so that your structs can only include
the items needed for the offloads/features you are actually using
on a given queue pair. In that way we support everything, but only
use what we need, and our structs stay smaller.
The ioctl API is better explained by the posting on linux-api@ than I
can explain it here, so I'll just leave it at that.
The rest of the pull request is typical stuff.
Updates for 4.14 kernel merge window
- Lots of hfi1 driver updates (mixed with a few qib and core updates
as well)
- rxe updates
- various mlx updates
- Set default roce type to RoCEv2
- Several larger fixes for bnxt_re that were too big for -rc
- Several larger fixes for qedr that, likewise, were too big for -rc
- Misc core changes
- Make the hns_roce driver compilable on arches other than aarch64 so
we can more easily debug build issues related to it
- Add rdma-netlink infrastructure updates
- Add automatic IRQ affinity infrastructure
- Add 32bit lid support
- Lots of misc fixes across the subsystem from random people
- Autoloading of RDMA netlink modules
- PCI pool cleanups from Romain Perier
- mlx5 driver feature additions and fixes
- Hardware tag matchine feature
- Fix sleeping in atomic when resolving roce ah
- Add experimental ioctl interface as posted to linux-api@"
* tag 'for-linus-ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (328 commits)
IB/core: Expose ioctl interface through experimental Kconfig
IB/core: Assign root to all drivers
IB/core: Add completion queue (cq) object actions
IB/core: Add legacy driver's user-data
IB/core: Export ioctl enum types to user-space
IB/core: Explicitly destroy an object while keeping uobject
IB/core: Add macros for declaring methods and attributes
IB/core: Add uverbs merge trees functionality
IB/core: Add DEVICE object and root tree structure
IB/core: Declare an object instead of declaring only type attributes
IB/core: Add new ioctl interface
RDMA/vmw_pvrdma: Fix a signedness
RDMA/vmw_pvrdma: Report network header type in WC
IB/core: Add might_sleep() annotation to ib_init_ah_from_wc()
IB/cm: Fix sleeping in atomic when RoCE is used
IB/core: Add support to finalize objects in one transaction
IB/core: Add a generic way to execute an operation on a uobject
Documentation: Hardware tag matching
IB/mlx5: Support IB_SRQT_TM
net/mlx5: Add XRQ support
...
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Jérôme Glisse
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b1a89257f2 |
IB/umem: update to new mmu_notifier semantic
Calls to mmu_notifier_invalidate_page() were replaced by calls to mmu_notifier_invalidate_range() and are now bracketed by calls to mmu_notifier_invalidate_range_start()/end() Remove now useless invalidate_page callback. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Tested-by: Leon Romanovsky <leonro@mellanox.com> Cc: linux-rdma@vger.kernel.org Cc: Artemy Kovalyov <artemyko@mellanox.com> Cc: Doug Ledford <dledford@redhat.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Matan Barak
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8eb19e8e7c |
IB/core: Expose ioctl interface through experimental Kconfig
Add CONFIG_INFINIBAND_EXP_USER_ACCESS that enables the ioctl interface. This interface is experimental and is subject to change. Signed-off-by: Matan Barak <matanb@mellanox.com> Reviewed-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
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Matan Barak
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5242711294 |
IB/core: Assign root to all drivers
In order to use the parsing tree, we need to assign the root to all drivers. Currently, we just assign the default parsing tree via ib_uverbs_add_one. The driver could override this by assigning a parsing tree prior to registering the device. Signed-off-by: Matan Barak <matanb@mellanox.com> Reviewed-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |