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2018-06-25IB/usnic: Update with bug fixes from core codeJason Gunthorpe3-14/+33
usnic has a modified version of the core codes' ib_umem_get() and related, and the copy misses many of the bug fixes done over the years: Commit bc3e53f682d9 ("mm: distinguish between mlocked and pinned pages") Commit 87773dd56d54 ("IB: ib_umem_release() should decrement mm->pinned_vm from ib_umem_get") Commit 8494057ab5e4 ("IB/uverbs: Prevent integer overflow in ib_umem_get address arithmetic") Commit 8abaae62f3fd ("IB/core: disallow registering 0-sized memory region") Commit 66578b0b2f69 ("IB/core: don't disallow registering region starting at 0x0") Commit 53376fedb9da ("RDMA/core: not to set page dirty bit if it's already set.") Commit 8e907ed48827 ("IB/umem: Use the correct mm during ib_umem_release") Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-12treewide: kzalloc() -> kcalloc()Kees Cook2-2/+2
The kzalloc() function has a 2-factor argument form, kcalloc(). This patch replaces cases of: kzalloc(a * b, gfp) with: kcalloc(a * b, gfp) as well as handling cases of: kzalloc(a * b * c, gfp) with: kzalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kzalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kzalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kzalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kzalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kzalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(char) * COUNT + COUNT , ...) | kzalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kzalloc + kcalloc ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kzalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kzalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kzalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kzalloc(C1 * C2 * C3, ...) | kzalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kzalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kzalloc(sizeof(THING) * C2, ...) | kzalloc(sizeof(TYPE) * C2, ...) | kzalloc(C1 * C2 * C3, ...) | kzalloc(C1 * C2, ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - (E1) * E2 + E1, E2 , ...) | - kzalloc + kcalloc ( - (E1) * (E2) + E1, E2 , ...) | - kzalloc + kcalloc ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-04-06Merge tag 'for-linus-unmerged' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds2-3/+2
Pull rdma updates from Jason Gunthorpe: "Doug and I are at a conference next week so if another PR is sent I expect it to only be bug fixes. Parav noted yesterday that there are some fringe case behavior changes in his work that he would like to fix, and I see that Intel has a number of rc looking patches for HFI1 they posted yesterday. Parav is again the biggest contributor by patch count with his ongoing work to enable container support in the RDMA stack, followed by Leon doing syzkaller inspired cleanups, though most of the actual fixing went to RC. There is one uncomfortable series here fixing the user ABI to actually work as intended in 32 bit mode. There are lots of notes in the commit messages, but the basic summary is we don't think there is an actual 32 bit kernel user of drivers/infiniband for several good reasons. However we are seeing people want to use a 32 bit user space with 64 bit kernel, which didn't completely work today. So in fixing it we required a 32 bit rxe user to upgrade their userspace. rxe users are still already quite rare and we think a 32 bit one is non-existing. - Fix RDMA uapi headers to actually compile in userspace and be more complete - Three shared with netdev pull requests from Mellanox: * 7 patches, mostly to net with 1 IB related one at the back). This series addresses an IRQ performance issue (patch 1), cleanups related to the fix for the IRQ performance problem (patches 2-6), and then extends the fragmented completion queue support that already exists in the net side of the driver to the ib side of the driver (patch 7). * Mostly IB, with 5 patches to net that are needed to support the remaining 10 patches to the IB subsystem. This series extends the current 'representor' framework when the mlx5 driver is in switchdev mode from being a netdev only construct to being a netdev/IB dev construct. The IB dev is limited to raw Eth queue pairs only, but by having an IB dev of this type attached to the representor for a switchdev port, it enables DPDK to work on the switchdev device. * All net related, but needed as infrastructure for the rdma driver - Updates for the hns, i40iw, bnxt_re, cxgb3, cxgb4, hns drivers - SRP performance updates - IB uverbs write path cleanup patch series from Leon - Add RDMA_CM support to ib_srpt. This is disabled by default. Users need to set the port for ib_srpt to listen on in configfs in order for it to be enabled (/sys/kernel/config/target/srpt/discovery_auth/rdma_cm_port) - TSO and Scatter FCS support in mlx4 - Refactor of modify_qp routine to resolve problems seen while working on new code that is forthcoming - More refactoring and updates of RDMA CM for containers support from Parav - mlx5 'fine grained packet pacing', 'ipsec offload' and 'device memory' user API features - Infrastructure updates for the new IOCTL interface, based on increased usage - ABI compatibility bug fixes to fully support 32 bit userspace on 64 bit kernel as was originally intended. See the commit messages for extensive details - Syzkaller bugs and code cleanups motivated by them" * tag 'for-linus-unmerged' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (199 commits) IB/rxe: Fix for oops in rxe_register_device on ppc64le arch IB/mlx5: Device memory mr registration support net/mlx5: Mkey creation command adjustments IB/mlx5: Device memory support in mlx5_ib net/mlx5: Query device memory capabilities IB/uverbs: Add device memory registration ioctl support IB/uverbs: Add alloc/free dm uverbs ioctl support IB/uverbs: Add device memory capabilities reporting IB/uverbs: Expose device memory capabilities to user RDMA/qedr: Fix wmb usage in qedr IB/rxe: Removed GID add/del dummy routines RDMA/qedr: Zero stack memory before copying to user space IB/mlx5: Add ability to hash by IPSEC_SPI when creating a TIR IB/mlx5: Add information for querying IPsec capabilities IB/mlx5: Add IPsec support for egress and ingress {net,IB}/mlx5: Add ipsec helper IB/mlx5: Add modify_flow_action_esp verb IB/mlx5: Add implementation for create and destroy action_xfrm IB/uverbs: Introduce ESP steering match filter IB/uverbs: Add modify ESP flow_action ...
2018-03-26infiniband: Replace usnic_ib_netdev_event_to_string() with netdev_cmd_to_name()Kirill Tkhai1-10/+5
This function just calls netdev_cmd_to_name(). Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-26net: Make NETDEV_XXX commands enum { }Kirill Tkhai1-14/+1
This patch is preparation to drop NETDEV_UNREGISTER_FINAL. Since the cmd is used in usnic_ib_netdev_event_to_string() to get cmd name, after plain removing NETDEV_UNREGISTER_FINAL from everywhere, we'd have holes in event2str[] in this function. Instead of that, let's make NETDEV_XXX commands names available for everyone, and to define netdev_cmd_to_name() in the way we won't have to shaffle names after their numbers are changed. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-19IB/uverbs: Extend uverbs_ioctl header with driver_idMatan Barak1-0/+1
Extending uverbs_ioctl header with driver_id and another reserved field. driver_id should be used in order to identify the driver. Since every driver could have its own parsing tree, this is necessary for strace support. Downstream patches take off the EXPERIMENTAL flag from the ioctl() IB support and thus we add some reserved fields for future usage. Reviewed-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-02-28IB/usnic: Delete an error message for a failed memory allocation in usnic_transport_init()Markus Elfring1-3/+1
Omit an extra message for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-02-12net: make getname() functions return length rather than use int* parameterDenys Vlasenko1-3/+2
Changes since v1: Added changes in these files: drivers/infiniband/hw/usnic/usnic_transport.c drivers/staging/lustre/lnet/lnet/lib-socket.c drivers/target/iscsi/iscsi_target_login.c drivers/vhost/net.c fs/dlm/lowcomms.c fs/ocfs2/cluster/tcp.c security/tomoyo/network.c Before: All these functions either return a negative error indicator, or store length of sockaddr into "int *socklen" parameter and return zero on success. "int *socklen" parameter is awkward. For example, if caller does not care, it still needs to provide on-stack storage for the value it does not need. None of the many FOO_getname() functions of various protocols ever used old value of *socklen. They always just overwrite it. This change drops this parameter, and makes all these functions, on success, return length of sockaddr. It's always >= 0 and can be differentiated from an error. Tests in callers are changed from "if (err)" to "if (err < 0)", where needed. rpc_sockname() lost "int buflen" parameter, since its only use was to be passed to kernel_getsockname() as &buflen and subsequently not used in any way. Userspace API is not changed. text data bss dec hex filename 30108430 2633624 873672 33615726 200ef6e vmlinux.before.o 30108109 2633612 873672 33615393 200ee21 vmlinux.o Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> CC: David S. Miller <davem@davemloft.net> CC: linux-kernel@vger.kernel.org CC: netdev@vger.kernel.org CC: linux-bluetooth@vger.kernel.org CC: linux-decnet-user@lists.sourceforge.net CC: linux-wireless@vger.kernel.org CC: linux-rdma@vger.kernel.org CC: linux-sctp@vger.kernel.org CC: linux-nfs@vger.kernel.org CC: linux-x25@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-22drivers: infiniband: remove duplicate includesPravin Shedge2-2/+0
These duplicate includes have been found with scripts/checkincludes.pl but they have been removed manually to avoid removing false positives. Signed-off-by: Pravin Shedge <pravin.shedge4linux@gmail.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2017-11-15Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdmaLinus Torvalds4-26/+27
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 ...
2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman1-0/+1
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>
2017-10-14RDMA/usnic: Instantiate data structures onceBart Van Assche2-24/+25
Data structures should not be defined in a header file. Hence move the min_transport_spec[] definition from a header file to a .c file. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Dave Goodell <dgoodell@cisco.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-14RDMA/usnic: Remove a set-but-not-used variableBart Van Assche1-2/+0
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Dave Goodell <dgoodell@cisco.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-10-14RDMA/usnic: Make the compiler check declaration consistency during compilationBart Van Assche2-0/+2
This patch avoids that sparse complains about missing declarations. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Dave Goodell <dgoodell@cisco.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-09-08lib/interval_tree: fast overlap detectionDavidlohr Bueso4-17/+18
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>
2017-08-28IB/usnic: check for allocation failureDan Carpenter1-0/+2
usnic_uiom_get_dev_list() can return ERR_PTR(-ENOMEM) so we should check for that. Fixes: e3cf00d0a87f ("IB/usnic: Add Cisco VIC low-level hardware driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-24RDMA/usnic: Fix remove address space warningLeon Romanovsky3-15/+9
Sparse tool complains with the following error: drivers/infiniband/hw/usnic/usnic_ib_main.c:445:16: warning: cast removes address space of expression Fix it by doing casting on correct field and convert function helper which sets ifaddr to be void, because there are no users who are interested in returned value. Fixes: c7845bcafe4d ("IB/usnic: Add UDP support in u*verbs.c, u*main.c and u*util.h") Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22RDMA: Fix return value check for ib_get_eth_speed()Selvin Xavier1-2/+2
ib_get_eth_speed() return 0 on success. Fixing the condition checking and prevent reporting failure for query_port verb. Fixes: d41861942fc5 ("Add generic function to extract IB speed from netdev") Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-10RDMA: Simplify get firmware interfaceLeon Romanovsky1-4/+2
There is a need to forward FW version to user space application through RDMA netlink. In order to make it safe, there is need to declare nla_policy and limit the size of FW string. The new define IB_FW_VERSION_NAME_MAX will limit the size of FW version string. That define was chosen to be equal to ETHTOOL_FWVERS_LEN, because many drivers anyway are limited by that value indirectly. The introduction of this define allows us to remove the string size from get_fw_str function signature. Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2017-07-24RDMA: Remove useless MODULE_VERSIONLeon Romanovsky1-1/+0
All modules in drivers/infiniband defined and used MODULE_VERSION, which was pointless because the kernel version describes their state more accurate then those arbitrary numbers. Signed-off-by: Leon Romanovsky <leon@kernel.org> Acked-by: Sagi Grimbrg <sagi@grimberg.me> Reviewed-by: Sagi Grimberg <sagi@grimbeg.me> Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Acked-by: Selvin Xavier <selvin.xavier@broadcom.com> Acked-by: Ram Amrani <Ram.Amrani@cavium.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Acked-by: Adit Ranadive <aditr@vmware.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-07-24IB/core: Add generic function to extract IB speed from netdevYuval Shaia1-25/+6
Logic of retrieving netdev speed from net_device and translating it to IB speed is implemented in rxe, in usnic and in bnxt drivers. Define new function which merges all. Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com> Reviewed-by: Christian Benvenuti <benve@cisco.com> Reviewed-by: Selvin Xavier <selvin.xavier@broadcom.com> Reviewed-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-07-24IB/usnic: Implement get_netdev hookYuval Shaia3-0/+12
usnic's get_netdev hook for struct ib_device is missing - add it. Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com> Reviewed-by: Christian Benvenuti <benve@cisco.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-05-01IB/core: Rename struct ib_ah_attr to rdma_ah_attrDasaratharaman Chandramouli2-2/+2
This patch simply renames struct ib_ah_attr to rdma_ah_attr as these fields specify attributes that are not necessarily specific to IB. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Don Hiatt <don.hiatt@intel.com> Reviewed-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-28IB/usnic: Simplify the code to balance loc/unlock callsLeon Romanovsky1-22/+23
Simplify code in find_free_vf_and_create_qp_grp() to avoid sparse error regarding call to unlock in the block other than lock was called. drivers/infiniband/hw/usnic/usnic_ib_verbs.c:206:9: warning: context imbalance in 'find_free_vf_and_create_qp_grp' - different lock contexts for basic block CC: Christian Benvenuti <benve@cisco.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-28Ib/usnic: Explicitly include usnic headersLeon Romanovsky2-0/+2
Sparse tool complains about undeclared symbols in usnic_ib_verbs.c and usnic_ib_sysfs.c This is caused by lack of direct include of appropriate usnic_ib_verbs.h and usnic_ib_sysfs.h, where all these functions were declared. Simple include eliminates 30 warnings similar to the below one: drivers/infiniband/hw/usnic/usnic_ib_sysfs.c:304:6: warning: symbol 'usnic_ib_sysfs_unregister_usdev' was not declared. Should it be static? CC: Christian Benvenuti <benve@cisco.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-25{net,IB}/{rxe,usnic}: Utilize generic mac to eui32 functionYuval Shaia1-8/+3
This logic seems to be duplicated in (at least) three separate files. Move it to one place so code can be re-use. Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
2017-04-25IB/usnic: Remove unused functionsYuval Shaia1-29/+0
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-02sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>Ingo Molnar1-1/+1
We are going to split <linux/sched/signal.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/signal.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>Ingo Molnar1-0/+1
We are going to split <linux/sched/mm.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/mm.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. The APIs that are going to be moved first are: mm_alloc() __mmdrop() mmdrop() mmdrop_async_fn() mmdrop_async() mmget_not_zero() mmput() mmput_async() get_task_mm() mm_access() mm_release() Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-25Merge tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdmaLinus Torvalds1-1/+1
Pull rdma DMA mapping updates from Doug Ledford: "Drop IB DMA mapping code and use core DMA code instead. Bart Van Assche noted that the ib DMA mapping code was significantly similar enough to the core DMA mapping code that with a few changes it was possible to remove the IB DMA mapping code entirely and switch the RDMA stack to use the core DMA mapping code. This resulted in a nice set of cleanups, but touched the entire tree and has been kept separate for that reason." * tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (37 commits) IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating it IB/core: Remove ib_device.dma_device nvme-rdma: Switch from dma_device to dev.parent RDS: net: Switch from dma_device to dev.parent IB/srpt: Modify a debug statement IB/srp: Switch from dma_device to dev.parent IB/iser: Switch from dma_device to dev.parent IB/IPoIB: Switch from dma_device to dev.parent IB/rxe: Switch from dma_device to dev.parent IB/vmw_pvrdma: Switch from dma_device to dev.parent IB/usnic: Switch from dma_device to dev.parent IB/qib: Switch from dma_device to dev.parent IB/qedr: Switch from dma_device to dev.parent IB/ocrdma: Switch from dma_device to dev.parent IB/nes: Remove a superfluous assignment statement IB/mthca: Switch from dma_device to dev.parent IB/mlx5: Switch from dma_device to dev.parent IB/mlx4: Switch from dma_device to dev.parent IB/i40iw: Remove a superfluous assignment statement IB/hns: Switch from dma_device to dev.parent ...
2017-02-23Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdmaLinus Torvalds2-2/+4
Pull Mellanox rdma updates from Doug Ledford: "Mellanox specific updates for 4.11 merge window Because the Mellanox code required being based on a net-next tree, I keept it separate from the remainder of the RDMA stack submission that is based on 4.10-rc3. This branch contains: - Various mlx4 and mlx5 fixes and minor changes - Support for adding a tag match rule to flow specs - Support for cvlan offload operation for raw ethernet QPs - A change to the core IB code to recognize raw eth capabilities and enumerate them (touches non-Mellanox code) - Implicit On-Demand Paging memory registration support" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (40 commits) IB/mlx5: Fix configuration of port capabilities IB/mlx4: Take source GID by index from HW GID table IB/mlx5: Fix blue flame buffer size calculation IB/mlx4: Remove unused variable from function declaration IB: Query ports via the core instead of direct into the driver IB: Add protocol for USNIC IB/mlx4: Support raw packet protocol IB/mlx5: Support raw packet protocol IB/core: Add raw packet protocol IB/mlx5: Add implicit MR support IB/mlx5: Expose MR cache for mlx5_ib IB/mlx5: Add null_mkey access IB/umem: Indicate that process is being terminated IB/umem: Update on demand page (ODP) support IB/core: Add implicit MR flag IB/mlx5: Support creation of a WQ with scatter FCS offload IB/mlx5: Enable QP creation with cvlan offload IB/mlx5: Enable WQ creation and modification with cvlan offload IB/mlx5: Expose vlan offloads capabilities IB/uverbs: Enable QP creation with cvlan offload ...
2017-02-23Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdmaLinus Torvalds2-2/+2
Pull rdma updates from Doug Ledford: "First set of updates for 4.11 kernel merge window - Add new Broadcom bnxt_re RoCE driver - rxe driver updates - ioctl cleanups - ETH_P_IBOE declaration cleanup - IPoIB changes - Add port state cache - Allow srpt driver to accept guids as port names in config - Update to hfi1 driver - Update to srp driver - Lots of misc minor changes all over" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (114 commits) RDMA/bnxt_re: fix for "bnxt_en: Update to firmware interface spec 1.7.0." rdma_cm: fail iwarp accepts w/o connection params IB/srp: Drain the send queue before destroying a QP IB/core: Add support for draining IB_POLL_DIRECT completion queues IB/srp: Improve an error path IB/srp: Make a diagnostic message more informative IB/srp: Document locking conventions IB/srp: Fix race conditions related to task management IB/srp: Avoid that duplicate responses trigger a kernel bug IB/SRP: Avoid using IB_MR_TYPE_SG_GAPS RDMA/qedr: Fix some error handling RDMA/bnxt_re: add DCB dependency IB/hns: include linux/module.h IB/vmw_pvrdma: Expose vendor error to ULPs vmw_pvrdma: switch to pci_alloc_irq_vectors IB/hfi1: use size_t for passing array length IB/ipoib: Remove redudant label IB/ipoib: remove the unnecessary memory free IB/mthca: switch to pci_alloc_irq_vectors IB/hfi1: Code reuse with memdup_copy ...
2017-02-14IB: Query ports via the core instead of direct into the driverOr Gerlitz2-3/+4
Change the drivers to call ib_query_port in their get port immutable handler instead of their own query port handler. Doing this required to set the core cap flags of this device before the ib_query_port call is made, since the IB core might need these caps to serve the port query. Drivers are ensured by the IB core that the port attributes passed to the port query verb implementation are zero, and hence we removed the zeroing from the drivers. This patch doesn't add any new functionality. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Acked-by: Adit Ranadive <aditr@vmware.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-14IB: Add protocol for USNICOr Gerlitz1-0/+1
Add protocol definition for the proprietary the USNIC driver. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Reviewed-by: Christian Benvenuti <benve@cisco.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24IB/usnic: Switch from dma_device to dev.parentBart Van Assche1-1/+1
Prepare for removal of ib_device.dma_device. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Dave Goodell <dgoodell@cisco.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-14locking/atomic, kref: Add kref_read()Peter Zijlstra2-5/+5
Since we need to change the implementation, stop exposing internals. Provide kref_read() to read the current reference count; typically used for debug messages. Kills two anti-patterns: atomic_read(&kref->refcount) kref->refcount.counter Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-01-10RDMA: Adding ethertype ETH_P_IBOESelvin Xavier2-2/+2
Update the if_ether.h with the ethertype for Infiniband over Ethernet packets. Also, removing the occurances of 0x8915 from infiniband vendor drivers. Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-14Merge branches 'misc', 'qedr', 'reject-helpers', 'rxe' and 'srp' into merge-testDoug Ledford2-12/+12
2016-12-14Merge branch 'mlx' into merge-testDoug Ledford2-2/+6
2016-12-14IB/usnic: simplify IS_ERR_OR_NULL to IS_ERRJulia Lawall2-12/+12
The function usnic_ib_qp_grp_get_chunk only returns an ERR_PTR value or a valid pointer, never NULL. The same is true of get_qp_res_chunk, which just returns the result of calling usnic_ib_qp_grp_get_chunk. Simplify IS_ERR_OR_NULL to IS_ERR in both cases. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression t,e; @@ t = \(usnic_ib_qp_grp_get_chunk(...)\|get_qp_res_chunk(...)\) ... when != t=e - IS_ERR_OR_NULL(t) + IS_ERR(t) @@ expression t,e,e1; @@ t = \(usnic_ib_qp_grp_get_chunk(...)\|get_qp_res_chunk(...)\) ... when != t=e ?- t ? PTR_ERR(t) : e1 + PTR_ERR(t) ... when any // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-13IB/core: Let create_ah return extended response to userMoni Shoua2-2/+6
Add struct ib_udata to the signature of create_ah callback that is implemented by IB device drivers. This allows HW drivers to return extra data to the userspace library. This patch prepares the ground for mlx5 driver to resolve destination mac address for a given GID and return it to userspace. This patch was previously submitted by Knut Omang as a part of the patch set to support Oracle's Infiniband HCA (SIF). Signed-off-by: Knut Omang <knut.omang@oracle.com> Signed-off-by: Moni Shoua <monis@mellanox.com> Reviewed-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-03IB/usninc: Remove and fix debug prints after allocation failureLeon Romanovsky2-25/+7
This patch removes unneeded prints after allocation failure and moves one debug print into the appropriate place. Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-19mm: replace get_user_pages() write/force parameters with gup_flagsLorenzo Stoakes1-1/+4
This removes the 'write' and 'force' from get_user_pages() and replaces them with 'gup_flags' to make the use of FOLL_FORCE explicit in callers as use of this flag can result in surprising behaviour (and hence bugs) within the mm subsystem. Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-08-22IB/usnic: Fix error return codeChristophe Jaillet1-1/+2
If 'pci_register_driver' fails, we return 'err' which is known to be 0. Return the error instead. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/usnic: Support device FW version stringIra Weiny2-17/+16
And remove sysfs file in favor of the common core. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-06IB/usnic: Remove unused DMA attributesKrzysztof Kozlowski1-5/+0
The DMA attributes are set but never used. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-20Merge branch 'mm-pkeys-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds1-1/+1
Pull x86 protection key support from Ingo Molnar: "This tree adds support for a new memory protection hardware feature that is available in upcoming Intel CPUs: 'protection keys' (pkeys). There's a background article at LWN.net: https://lwn.net/Articles/643797/ The gist is that protection keys allow the encoding of user-controllable permission masks in the pte. So instead of having a fixed protection mask in the pte (which needs a system call to change and works on a per page basis), the user can map a (handful of) protection mask variants and can change the masks runtime relatively cheaply, without having to change every single page in the affected virtual memory range. This allows the dynamic switching of the protection bits of large amounts of virtual memory, via user-space instructions. It also allows more precise control of MMU permission bits: for example the executable bit is separate from the read bit (see more about that below). This tree adds the MM infrastructure and low level x86 glue needed for that, plus it adds a high level API to make use of protection keys - if a user-space application calls: mmap(..., PROT_EXEC); or mprotect(ptr, sz, PROT_EXEC); (note PROT_EXEC-only, without PROT_READ/WRITE), the kernel will notice this special case, and will set a special protection key on this memory range. It also sets the appropriate bits in the Protection Keys User Rights (PKRU) register so that the memory becomes unreadable and unwritable. So using protection keys the kernel is able to implement 'true' PROT_EXEC on x86 CPUs: without protection keys PROT_EXEC implies PROT_READ as well. Unreadable executable mappings have security advantages: they cannot be read via information leaks to figure out ASLR details, nor can they be scanned for ROP gadgets - and they cannot be used by exploits for data purposes either. We know about no user-space code that relies on pure PROT_EXEC mappings today, but binary loaders could start making use of this new feature to map binaries and libraries in a more secure fashion. There is other pending pkeys work that offers more high level system call APIs to manage protection keys - but those are not part of this pull request. Right now there's a Kconfig that controls this feature (CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS) that is default enabled (like most x86 CPU feature enablement code that has no runtime overhead), but it's not user-configurable at the moment. If there's any serious problem with this then we can make it configurable and/or flip the default" * 'mm-pkeys-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (38 commits) x86/mm/pkeys: Fix mismerge of protection keys CPUID bits mm/pkeys: Fix siginfo ABI breakage caused by new u64 field x86/mm/pkeys: Fix access_error() denial of writes to write-only VMA mm/core, x86/mm/pkeys: Add execute-only protection keys support x86/mm/pkeys: Create an x86 arch_calc_vm_prot_bits() for VMA flags x86/mm/pkeys: Allow kernel to modify user pkey rights register x86/fpu: Allow setting of XSAVE state x86/mm: Factor out LDT init from context init mm/core, x86/mm/pkeys: Add arch_validate_pkey() mm/core, arch, powerpc: Pass a protection key in to calc_vm_flag_bits() x86/mm/pkeys: Actually enable Memory Protection Keys in the CPU x86/mm/pkeys: Add Kconfig prompt to existing config option x86/mm/pkeys: Dump pkey from VMA in /proc/pid/smaps x86/mm/pkeys: Dump PKRU with other kernel registers mm/core, x86/mm/pkeys: Differentiate instruction fetches x86/mm/pkeys: Optimize fault handling in access_error() mm/core: Do not enforce PKEY permissions on remote mm access um, pkeys: Add UML arch_*_access_permitted() methods mm/gup, x86/mm/pkeys: Check VMAs and PTEs for protection keys x86/mm/gup: Simplify get_user_pages() PTE bit handling ...
2016-03-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds1-6/+4
Pull networking updates from David Miller: "Highlights: 1) Support more Realtek wireless chips, from Jes Sorenson. 2) New BPF types for per-cpu hash and arrap maps, from Alexei Starovoitov. 3) Make several TCP sysctls per-namespace, from Nikolay Borisov. 4) Allow the use of SO_REUSEPORT in order to do per-thread processing of incoming TCP/UDP connections. The muxing can be done using a BPF program which hashes the incoming packet. From Craig Gallek. 5) Add a multiplexer for TCP streams, to provide a messaged based interface. BPF programs can be used to determine the message boundaries. From Tom Herbert. 6) Add 802.1AE MACSEC support, from Sabrina Dubroca. 7) Avoid factorial complexity when taking down an inetdev interface with lots of configured addresses. We were doing things like traversing the entire address less for each address removed, and flushing the entire netfilter conntrack table for every address as well. 8) Add and use SKB bulk free infrastructure, from Jesper Brouer. 9) Allow offloading u32 classifiers to hardware, and implement for ixgbe, from John Fastabend. 10) Allow configuring IRQ coalescing parameters on a per-queue basis, from Kan Liang. 11) Extend ethtool so that larger link mode masks can be supported. From David Decotigny. 12) Introduce devlink, which can be used to configure port link types (ethernet vs Infiniband, etc.), port splitting, and switch device level attributes as a whole. From Jiri Pirko. 13) Hardware offload support for flower classifiers, from Amir Vadai. 14) Add "Local Checksum Offload". Basically, for a tunneled packet the checksum of the outer header is 'constant' (because with the checksum field filled into the inner protocol header, the payload of the outer frame checksums to 'zero'), and we can take advantage of that in various ways. From Edward Cree" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1548 commits) bonding: fix bond_get_stats() net: bcmgenet: fix dma api length mismatch net/mlx4_core: Fix backward compatibility on VFs phy: mdio-thunder: Fix some Kconfig typos lan78xx: add ndo_get_stats64 lan78xx: handle statistics counter rollover RDS: TCP: Remove unused constant RDS: TCP: Add sysctl tunables for sndbuf/rcvbuf on rds-tcp socket net: smc911x: convert pxa dma to dmaengine team: remove duplicate set of flag IFF_MULTICAST bonding: remove duplicate set of flag IFF_MULTICAST net: fix a comment typo ethernet: micrel: fix some error codes ip_tunnels, bpf: define IP_TUNNEL_OPTS_MAX and use it bpf, dst: add and use dst_tclassid helper bpf: make skb->tc_classid also readable net: mvneta: bm: clarify dependencies cls_bpf: reset class and reuse major in da ldmvsw: Checkpatch sunvnet.c and sunvnet_common.c ldmvsw: Add ldmvsw.c driver code ...
2016-03-17Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivialLinus Torvalds1-1/+1
Pull trivial tree updates from Jiri Kosina. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: drivers/rtc: broken link fix drm/i915 Fix typos in i915_gem_fence.c Docs: fix missing word in REPORTING-BUGS lib+mm: fix few spelling mistakes MAINTAINERS: add git URL for APM driver treewide: Fix typo in printk
2016-02-25net: usnic: use __ethtool_get_ksettingsDavid Decotigny1-4/+4
Signed-off-by: David Decotigny <decot@googlers.com> Signed-off-by: David S. Miller <davem@davemloft.net>