- 29 Mar, 2019 3 commits
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Matthew Wilcox authored
Signed-off-by:
Matthew Wilcox <willy@infradead.org> Signed-off-by:
Jason Gunthorpe <jgg@mellanox.com>
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Matthew Wilcox authored
Also fully initialise the qp before storing it in the XArray. Signed-off-by:
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Matthew Wilcox authored
Change the locking to not disable interrupts as the lookup in interrupt context will not see a freed CQ, thanks to the synchronize_irq() call before freeing the CQ. Signed-off-by:
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- 28 Mar, 2019 20 commits
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Parav Pandit authored
Add netlink command that enables/disables sharing rdma device among multiple net namespaces. Using rdma tool, $rdma sys set netns shared (default mode) When rdma subsystem netns mode is set to shared mode, rdma devices will be accessible in all net namespaces. Using rdma tool, $rdma sys set netns exclusive When rdma subsystem netns mode is set to exclusive mode, devices will be accessible in only one net namespace at any given point of time. If there are any net namespaces other than default init_net exists, while executing this command, it will fail and mode cannot be changed. To change this mode, netlink command is used instead of sysctl, because netlink command allows to auto load a module. Signed-off-by:
Parav Pandit <parav@mellanox.com> Signed-off-by:
Leon Romanovsky <leonro@mellanox.com> Signed-off-by:
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Parav Pandit authored
Add an interface via netlink command to query whether rdma devices are shared among multiple net namespaces or not. When using RDMAtool, it can be queried as, $rdma system show netns netns shared Signed-off-by:
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Parav Pandit authored
Extend ib_device_get_by_index() API to check device access for net namespace for serving netlink commands. Also enforce net ns check on dumpit commands which iterate over all registered rdma devices and which don't call ib_device_get_by_index(). Signed-off-by:
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Parav Pandit authored
Introduce an API rdma_dev_access_netns() to check whether a rdma device can be accessed from the specified net namespace or not. Use rdma_dev_access_netns() while opening character uverbs, umad network device and also check while rdma cm_id binds to rdma device. Signed-off-by:
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Parav Pandit authored
Add module parameter to change a sharing mode of ib_core early in the boot process. This parameter helps to those systems where modern up to date rdma tool (iproute2) package may not be available during kernel upgrade cycle. Signed-off-by:
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Parav Pandit authored
Now that sysfs compatibility layer for non init_net exists, add core port attributes such as pkey and gid table to non init_net ns. Signed-off-by:
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Parav Pandit authored
Implement compatibility layer sysfs entries of ib_core so that non init_net net namespaces can also discover rdma devices. Each non init_net net namespace has ib_core_device created in it. Such ib_core_device sysfs tree resembles rdma devices found in init_net namespace. This allows discovering rdma devices in multiple non init_net net namespaces via sysfs entries and helpful to rdma-core userspace. Signed-off-by:
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Parav Pandit authored
This is a preparation patch to provide isolation of rdma device in a network namespace. As first step, make rdma device visible only in init net namespace. Subsequent patch will enable rdma device visibility back in multiple net namespaces using compat ib_core_device device/sysfs tree. Given that the IB subsystem depends on net stack, it needs to be initialized after netdev and since it support devices, it needs to be initialized before the device subsystem; therefore, change initcall sequence to fs_initcall, so that when ib_core is compiled in the kernel image, the right init sequence is followed. Signed-off-by:
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Parav Pandit authored
In order to support sysfs entries in multiple net namespaces for a rdma device, introduce a ib_core_device whose scope is limited to hold core device and per port sysfs related entries. This is preparation patch so that multiple ib_core_devices in each net namespace can be created in subsequent patch who all can share ib_device. (a) Move sysfs specific fields to ib_core_device. (b) Make sysfs and device life cycle related routines to work on ib_core_device. (c) Introduce and use rdma_init_coredev() helper to initialize coredev fields. Signed-off-by: -
Shiraz Saleem authored
The buffer that holds the page DMA addresses is sized off umem->nmap. This can potentially cause out of bound accesses on the PBL array when iterating the umem DMA-mapped SGL. This is because if umem pages are combined, umem->nmap can be much lower than the number of system pages in umem. Use ib_umem_num_pages() to size this buffer. Cc: Dennis Dalessandro <dennis.dalessandro@intel.com> Cc: Mike Marciniszyn <mike.marciniszyn@intel.com> Cc: Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by:
Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by:
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Shiraz Saleem authored
The buffer that holds the page DMA addresses is sized off umem->nmap. This can potentially cause out of bound accesses on the PBL array when iterating the umem DMA-mapped SGL. This is because if umem pages are combined, umem->nmap can be much lower than the number of system pages in umem. Use ib_umem_num_pages() to size this buffer. Cc: Moni Shoua <monis@mellanox.com> Signed-off-by:
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Shiraz Saleem authored
The buffer that holds the page DMA addresses is sized off umem->nmap. This can potentially cause out of bound accesses on the PBL array when iterating the umem DMA-mapped SGL. This is because if umem pages are combined, umem->nmap can be much lower than the number of system pages in umem. Use ib_umem_num_pages() to size this buffer. Signed-off-by:
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Shiraz Saleem authored
The PBL array that hold the page DMA address is sized off umem->nmap. This can potentially cause out of bound accesses on the PBL array when iterating the umem DMA-mapped SGL. This is because if umem pages are combined, umem->nmap can be much lower than the number of system pages in umem. Use ib_umem_num_pages() to size this array. Cc: Potnuri Bharat Teja <bharat@chelsio.com> Signed-off-by:
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Selvin Xavier authored
umem->nmap is used while allocating internal buffer for storing page DMA addresses. This causes out of bounds array access while iterating the umem DMA-mapped SGL with umem page combining as umem->nmap can be less than number of system pages in umem. Use ib_umem_num_pages() instead of umem->nmap to size the page array. Add a new structure (bnxt_qplib_sg_info) to pass sglist, npages and nmap. Signed-off-by:
Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by:
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Bart Van Assche authored
This patch avoids that a compiler warning is reported when building with W=1. Reviewed-by:
Bart Van Assche <bvanassche@acm.org> Signed-off-by:
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Bart Van Assche authored
Enable format string checking for hfi1_cdbg() and fix the resulting compiler warnings. Signed-off-by:
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Bart Van Assche authored
Avoid that sparse complains about a missing declaration. Reviewed-by:
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Bart Van Assche authored
This patch avoids that sparse reports the following warnings: drivers/infiniband/core/uverbs_std_types_flow_action.c:442:30: warning: symbol 'uverbs_def_obj_flow_action' was not declared. Should it be static? drivers/infiniband/core/uverbs_std_types_dm.c:112:30: warning: symbol 'uverbs_def_obj_dm' was not declared. Should it be static? drivers/infiniband/core/uverbs_std_types_counters.c:153:30: warning: symbol 'uverbs_def_obj_counters' was not declared. Should it be static? drivers/infiniband/core/uverbs_std_types_mr.c:213:30: warning: symbol 'uverbs_def_obj_mr' was not declared. Should it be static? Reviewed-by:
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Bart Van Assche authored
This patch avoids that sparse complains about a mismatch between the returned value and the function return type. Reviewed-by:
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Bart Van Assche authored
This patch avoids that sparse and smatch report the following: warning: cast removes address space of expression Reviewed-by:
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- 27 Mar, 2019 15 commits
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Zhu Yanjun authored
In the function rxe_init_packet, based on av->network_type, skb->protocol is set to ipv4 or ipv6. The functions rxe_prepare and rxe_send are called after the functin rxe_init_packet. So in these functions, av->network_type can be replaced with skb->protocol. The functions are in the xmit fast path. So with skb->protocol, the performance will be better. Signed-off-by:
Zhu Yanjun <yanjun.zhu@oracle.com> Signed-off-by:
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Ira Weiny authored
Provide a count of class types for a summary of MAD packets. The example shows one way to filter the trace data based on management class. Signed-off-by:
Ira Weiny <ira.weiny@intel.com> Signed-off-by:
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Ira Weiny authored
Decode more information from the packet and include it in the trace. Reviewed-by:
"Ruhl, Michael J" <michael.j.ruhl@intel.com> Signed-off-by:
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Ira Weiny authored
Trace MADs going to/from user space. Suggested-by:
Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by:
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Ira Weiny authored
Trace agent details when agents are [un]registered. In addition, report agent details on send/recv. Reviewed-by:
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Ira Weiny authored
Trace received MAD details. Reviewed-by:
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Ira Weiny authored
Use the standard Linux trace mechanism to trace MADs being sent. 4 trace points are added, when the MAD is posted to the qp, when the MAD is completed, if a MAD is resent, and when the MAD completes in error. Reviewed-by:
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Potnuri Bharat Teja authored
Remove Steve and add undersigned as maintainer for iw_cxgb4 drivers. Signed-off-by:
Potnuri Bharat Teja <bharat@chelsio.com> Acked-by:
Steve Wise <larrystevenwise@gmail.com> Signed-off-by:
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Yuval Shaia authored
Caller already clears props before calling query_device. Signed-off-by:
Yuval Shaia <yuval.shaia@oracle.com> Acked-by:
Adit Ranadive <aditr@vmware.com> Signed-off-by:
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Artemy Kovalyov authored
The InfiniBand Architecture Specification section 10.6.7.2.4 TYPE 2 MEMORY WINDOWS says that if the CI supports the Base Memory Management Extensions defined in this specification, the R_Key format for a Type 2 Memory Window must consist of: * 24 bit index in the most significant bits of the R_Key, which is owned by the CI, and * 8 bit key in the least significant bits of the R_Key, which is owned by the Consumer. This means that the kernel should compare only the index part of a R_Key to determine equality with another R_Key. Fixes: db570d7d ("IB/mlx5: Add ODP support to MW") Signed-off-by:
Artemy Kovalyov <artemyko@mellanox.com> Signed-off-by:
Moni Shoua <monis@mellanox.com> Signed-off-by:
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Artemy Kovalyov authored
Move index increment after its is used or otherwise it will start the dump of the WQE from second WQE BB. Fixes: 34f4c955 ("IB/mlx5: Use fragmented QP's buffer for in-kernel users") Signed-off-by:
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Leon Romanovsky authored
The forgotten static keyword causes to the following error to appear while building HNS driver. Declare hns_roce_cmq_send() to be static function to fix this warning. drivers/infiniband/hw/hns/hns_roce_hw_v2.c:1089:5: warning: no previous prototype for _hns_roce_cmq_send_ [-Wmissing-prototypes] int hns_roce_cmq_send(struct hns_roce_dev *hr_dev, Fixes: 6a04aed6 ("RDMA/hns: Fix the chip hanging caused by sending mailbox&CMQ during reset") Signed-off-by:
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Leon Romanovsky authored
Attempt to use check_shl_overflow() with inputs of unsigned type produces the following compilation warnings. drivers/infiniband/hw/mlx5/qp.c: In function _set_user_rq_size_: ./include/linux/overflow.h:230:6: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] _s >= 0 && _s < 8 * sizeof(*d) ? _s : 0; \ ^~ drivers/infiniband/hw/mlx5/qp.c:5820:6: note: in expansion of macro _check_shl_overflow_ if (check_shl_overflow(rwq->wqe_count, rwq->wqe_shift, &rwq->buf_size)) ^~~~~~~~~~~~~~~~~~ ./include/linux/overflow.h:232:26: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] (_to_shift != _s || *_d < 0 || _a < 0 || \ ^ drivers/infiniband/hw/mlx5/qp.c:5820:6: note: in expansion of macro _check_shl_overflow_ if (check_shl_overflow(rwq->wqe_count, rwq->wqe_shift, &rwq->buf_size)) ^~~~~~~~~~~~~~~~~~ ./include/linux/overflow.h:232:36: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] (_to_shift != _s || *_d < 0 || _a < 0 || \ ^ drivers/infiniband/hw/mlx5/qp.c:5820:6: note: in expansion of macro _check_shl_overflow_ if (check_shl_overflow(rwq->wqe_count, rwq->wqe_shift,&rwq->buf_size)) ^~~~~~~~~~~~~~~~~~ Fixes: 0c668477 ("overflow.h: Add arithmetic shift helper") Reviewed-by:Kees Cook <keescook@chromium.org> Signed-off-by:
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Colin Ian King authored
The variable len is not being inintialized and the uninitialized value is being returned. However, this return path is never reached because the default case in the switch statement returns -ENOSYS. Clean up the code by replacing the return -ENOSYS with a break for the default case and returning -ENOSYS at the end of the function. This allows len to be removed. Also remove redundant break that follows a return statement. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Reviewed-by:
Max Gurtovoy <maxg@mellanox.com> Reviewed-by:
Sagi Grimberg <sagi@grimberg.me> Signed-off-by:
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Kangjie Lu authored
alloc_ordered_workqueue may fail and return NULL. The fix captures the failure and handles it properly to avoid potential NULL pointer dereferences. Signed-off-by:
Kangjie Lu <kjlu@umn.edu> Reviewed-by:
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- 26 Mar, 2019 2 commits
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Ira Weiny authored
No device supports ODP MR without an invalidate_range callback. Warn on any any device which attempts to support ODP without supplying this callback. Then we can remove the checks for the callback within the code. This stems from the discussion https://www.spinics.net/lists/linux-rdma/msg76460.html ...which concluded this code was no longer necessary. Acked-by:
John Hubbard <jhubbard@nvidia.com> Reviewed-by:
Haggai Eran <haggaie@mellanox.com> Signed-off-by:
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Leon Romanovsky authored
BUG: KASAN: slab-out-of-bounds in rxe_mem_init_user+0x6c1/0x740 [rdma_rxe] Read of size 8 at addr ffff88805c01a608 by task ib_send_bw/573 CPU: 24 PID: 573 Comm: ib_send_bw Not tainted 5.0.0-rc5+ #189 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.11.0-0-g63451fca13-prebuilt.qemu-project.org 04/01/2014 Call Trace: rxe_mem_init_user+0x6c1/0x740 [rdma_rxe] rxe_reg_user_mr+0x9b/0x110 [rdma_rxe] ib_uverbs_reg_mr+0x428/0x9c0 [ib_uverbs] ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0x2b0/0x410 [ib_uverbs] ib_uverbs_run_method+0x79c/0x1da0 [ib_uverbs] rxe_mem_init_user+0x6c1/0x740 [rdma_rxe] rxe_reg_user_mr+0x9b/0x110 [rdma_rxe] ib_uverbs_reg_mr+0x428/0x9c0 [ib_uverbs] ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0x2b0/0x410 [ib_uverbs] ib_uverbs_run_method+0x79c/0x1da0 [ib_uverbs] ib_uverbs_cmd_verbs+0x5f2/0xf20 [ib_uverbs] ib_uverbs_ioctl+0x202/0x310 [ib_uverbs] do_vfs_ioctl+0x193/0x1440 ksys_ioctl+0x3a/0x70 __x64_sys_ioctl+0x6f/0xb0 do_syscall_64+0x13f/0x570 entry_SYSCALL_64_after_hwframe+0x49/0xbe Allocated by task 573: __kasan_kmalloc.constprop.5+0xc1/0xd0 __kmalloc+0x161/0x310 rxe_mem_alloc+0x52/0x470 [rdma_rxe] rxe_mem_init_user+0x113/0x740 [rdma_rxe] rxe_reg_user_mr+0x9b/0x110 [rdma_rxe] ib_uverbs_reg_mr+0x428/0x9c0 [ib_uverbs] ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0x2b0/0x410 [ib_uverbs] ib_uverbs_run_method+0x79c/0x1da0 [ib_uverbs] ib_uverbs_cmd_verbs+0x5f2/0xf20 [ib_uverbs] ib_uverbs_ioctl+0x202/0x310 [ib_uverbs] do_vfs_ioctl+0x193/0x1440 ksys_ioctl+0x3a/0x70 __x64_sys_ioctl+0x6f/0xb0 do_syscall_64+0x13f/0x570 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 0: __kasan_slab_free+0x12e/0x180 kfree+0x10a/0x2c0 rcu_process_callbacks+0xa77/0x1260 __do_softirq+0x2ad/0xacb Test scenario: ib_send_bw -x 1 -d rxe0 -a & ib_send_bw -x 1 -d rxe0 -a localhost Fixes: 8700e3e7 ("Soft RoCE driver") Reported-by:
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