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path: root/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
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* i40iw: Fix potential fcn_id_array out of boundsChristopher N Bednarz2017-08-161-1/+1
| | | | | | | | | Avoid out of bounds error by utilizing I40IW_MAX_STATS_COUNT instead of I40IW_INVALID_FCN_ID. Signed-off-by: Christopher N Bednarz <christoper.n.bednarz@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* i40iw: Fix parsing of query/commit FPM buffersChien Tin Tung2017-08-161-40/+81
| | | | | | | | | | | | | | Parsing of commit/query Host Memory Cache Function Private Memory is not skipping over reserved fields and incorrectly assigning those values into object's base/cnt/max_cnt fields. Skip over reserved fields and set correct values. Also correct memory alignment requirement for commit/query FPM buffers. Signed-off-by: Chien Tin Tung <chien.tin.tung@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Christopher N Bednarz <christopher.n.bednarz@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* i40iw: Do not poll CCQ after it is destroyedMustafa Ismail2017-07-201-0/+2
| | | | | | | | | | Control Queue Pair (CQP) OPs, in this case - Update SDs, cannot poll the Control Completion Queue (CCQ) after CCQ is destroyed. Instead, poll via registers. Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* RDMA/i40iw: Remove MSS change supportShiraz Saleem2017-06-011-11/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MSS change on active QPs is not supported. Store new MSS value for new QPs only. Remove code to modify MSS on the fly. This also resolves a crash on QP modify to QP 0. BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 IP: i40iw_sc_qp_modify+0x22/0x280 [i40iw] Oops: 0000 [#1] SMP KASAN CPU: 2 PID: 1236 Comm: kworker/u16:4 Not tainted 4.12.0-rc1 #5 Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./Q87M-D2H, BIOS F7 01/17/2014 Workqueue: l2params i40iw_l2params_worker [i40iw] task: ffff88070f5a9b40 task.stack: ffff88070f5a0000 RIP: 0010:i40iw_sc_qp_modify+0x22/0x280 [i40iw] ... Call Trace: i40iw_exec_cqp_cmd+0x2ce/0x410 [i40iw] ? _raw_spin_lock_irqsave+0x6f/0x80 ? i40iw_process_cqp_cmd+0x1d/0x80 [i40iw] i40iw_process_cqp_cmd+0x7c/0x80 [i40iw] i40iw_handle_cqp_op+0x2f/0x200 [i40iw] ? trace_hardirqs_off+0xd/0x10 ? _raw_spin_unlock_irqrestore+0x46/0x50 i40iw_hw_modify_qp+0x5e/0x90 [i40iw] i40iw_qp_mss_modify+0x52/0x60 [i40iw] i40iw_change_l2params+0x145/0x160 [i40iw] i40iw_l2params_worker+0x1f/0x40 [i40iw] process_one_work+0x1f5/0x650 ? process_one_work+0x161/0x650 worker_thread+0x48/0x3b0 kthread+0x112/0x150 ? process_one_work+0x650/0x650 ? kthread_create_on_node+0x40/0x40 ret_from_fork+0x2e/0x40 Code: 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 41 55 41 89 cd 41 54 49 89 fc 53 48 89 f3 48 89 d6 48 83 ec 08 48 8b 87 10 01 00 00 <48> 8b 40 08 4c 8b b0 40 04 00 00 4c 89 f7 e8 1b e5 ff ff 48 85 RIP: i40iw_sc_qp_modify+0x22/0x280 [i40iw] RSP: ffff88070f5a7c28 CR2: 0000000000000008 ---[ end trace 77a405931e296060 ]--- Reported-by: Stefan Assmann <sassmann@redhat.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* i40iw: Set maj_err and min_err in i40iw_sc_cqp_createShiraz Saleem2017-01-241-0/+3
| | | | | | | | | | | | | Set maj_err and min_err in i40iw_sc_cqp_create so that it returns correct values for all return cases. This also addresses an uninitialized variable warning for maj_err and min_err in i40iw_create_cqp. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reported-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* i40iw: fix some indenting in i40iw_sc_vsi_init()Dan Carpenter2017-01-241-3/+3
| | | | | | | | | | The debug printk was indented more than it should have been and we can remove an unnecessary line break. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Shiraz Saleem <shiraz.saleem@intel.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* RDMA/i40iw: use designated initializersKees Cook2017-01-121-65/+63Star
| | | | | | | | | | | Prepare to mark sensitive kernel structures for randomization by making sure they're using designated initializers. These were identified during allyesconfig builds of x86, arm, and arm64, with most initializer fixes extracted from grsecurity. Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* i40iw: Set 128B as the only supported RQ WQE sizeChien Tin Tung2016-12-221-5/+20
| | | | | | | | | | | | RQ WQE size other than 128B is not supported. Correct RQ size calculation to use 128B only. Since this breaks ABI, add additional code to provide compatibility with v4 user provider, libi40iw. Signed-off-by: Chien Tin Tung <chien.tin.tung@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* i40iw: Reorganize structures to align with HW capabilitiesHenry Orosco2016-12-121-226/+301
| | | | | | | | | | | Some resources are incorrectly organized and at odds with HW capabilities. Specifically, ILQ, IEQ, QPs, MSS, QOS and statistics belong in a VSI. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* i40iw: Remove variable flush_code and check to set qp->sq_flushHenry Orosco2016-12-051-4/+0Star
| | | | | | | | | | | The flush_code variable in i40iw_bld_terminate_hdr() is obsolete and the check to set qp->sq_flush is unreachable. Currently flush code is populated in setup_term_hdr() and both SQ and RQ are flushed always as part of the tear down flow. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* i40iw: Remove check on return from device_init_pestat()Henry Orosco2016-12-051-8/+2Star
| | | | | | | | | Remove unnecessary check for return code from device_init_pestat() and change func to void. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* i40iw: Convert page_size to encoded valueHenry Orosco2016-12-051-3/+9
| | | | | | | | | | | Passed in page_size was used as encoded value for writing the WQE and passed in value was usually 4096. This was working out since bit 0 was 0 and implies 4KB pages, but would not work for other page sizes. Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* i40iw: Set MAX IRD, MAX ORD size to max supported valueHenry Orosco2016-12-031-5/+0Star
| | | | | | | | | Set the MAX_IRD and MAX_ORD size negotiated to the maximum supported values. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* i40iw: Enable message packingHenry Orosco2016-12-031-5/+0Star
| | | | | | | | | Remove the parameter to disable message packing and always enable it. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* i40iw: Add Quality of Service supportHenry Orosco2016-12-031-5/+146
| | | | | | | | | | | | Add support for QoS on QPs. Upon device initialization, a map is created from user priority to queue set handles. On QP creation, use ToS to look up the queue set handle for use with the QP. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* RDMA/i40iw: Fix SD calculation for initial HMC creationIsmail, Mustafa2016-04-281-32/+61
| | | | | | | | | | Correct SD calculation by using base address returned from commit FPM. This alleviates any assumptions on resource ordering and alignment requirement. Also consolidate SD estimation code into i40iw_est_sd(). Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* RDMA/i40iw: Fix endian issues and warningsIsmail, Mustafa2016-04-281-5/+5
| | | | | | | | | Fix endian warnings and errors due to u32 stored to u16. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* RDMA/i40iw: Add base memory management extensionsIsmail, Mustafa2016-04-281-11/+71
| | | | | | | | | Implement fast register mr, Local invalidate, send with invalidate and RDMA read with invalidate. Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* i40iw: add file to handle cqp callsFaisal Latif2016-03-161-0/+4743
i40iw_ctrl.c provides for hardware wqe support and cqp. Changes since v2: cleanup coccinelle error reported by Julia Lawall Changes since v1: reported by Christoph Hellwig's review -remove unnecessary casts Acked-by: Anjali Singhai Jain <anjali.singhai@intel.com> Acked-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
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