- 28 Apr, 2017 12 commits
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Leon Romanovsky authored
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>
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Leon Romanovsky authored
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:
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Leon Romanovsky authored
Functions declared in uverbs_std_types.c are local to that file, but they lack static declarations. This produces a lot of sparse warnings, like the one below: drivers/infiniband/core/uverbs_std_types.c:41:5: warning: symbol 'uverbs_free_ah' was not declared. Should it be static? So mark them as static. CC: Matan Barak <matanb@mellanox.com> Signed-off-by:
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Pan Bian authored
Function alloc_skb() will return a NULL pointer when there is no enough memory. However, the return value of alloc_skb() is directly used without validation in function send_fw_pass_open_req(). This patches checks the return value of alloc_skb() against NULL. Signed-off-by:
Pan Bian <bianpan2016@163.com> Signed-off-by:
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Colin Ian King authored
trivial fix to typo in pr_err message Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Dan Carpenter authored
We need to call spin_unlock_irqrestore() instead of vanilla spin_unlock() on this error path. Fixes: 119a8e70 ("IB/rdmavt: Add AH to rdmavt") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by:
Leon Romanovsky <leonro@mellanox.com> Acked-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
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Paolo Abeni authored
The infiniband address handle can be triggered to resolve an ipv6 address in response to MAD packets, regardless of the ipv6 module being disabled via the kernel command line argument. That will cause a call into the ipv6 routing code, which is not initialized, and a conseguent oops. This commit addresses the above issue replacing the direct lookup call with an indirect one via the ipv6 stub, which is properly initialized according to the ipv6 status (e.g. if ipv6 is disabled, the routing lookup fails gracefully) Cc: stable@vger.kernel.org # 3.12+ Signed-off-by:
Paolo Abeni <pabeni@redhat.com> Signed-off-by:
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Amrani, Ram authored
Split the poll responder CQ into two functions. Add support for send+invalidate in poll CQ. Signed-off-by:
Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by:
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Amrani, Ram authored
Wait for all relevant CNQ interrupts before freeing the CQ. Don't invoke completion handlers for a destroyed CQ. Signed-off-by:
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Amrani, Ram authored
Avoid attempting to release irrelevant (and unused) resources for GSI QP. Signed-off-by:
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Amrani, Ram authored
After checking the path upwards towards root complex, actualy check root complex atomic_req capability, and not our own NIC. Verify that the PCIe device control register's atomic egress block is cleared in the path. Verify that the PCIe version is at least 2. Signed-off-by:
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Amrani, Ram authored
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- 25 Apr, 2017 24 commits
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Jason Gunthorpe authored
imm_data is copied directly from the ib_send_wr and ib_wc which have it marked as __be32, copy that mark into the uapi structures as well. Signed-off-by:
Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Tested-by:
Adit Ranadive <aditr@vmware.com> Acked-by:
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Artemy Kovalyov authored
Internally MW implemented as KLM MKey and filled by userspace UMR postsends. Handle pagefault trigered by operations on this MKeys. Signed-off-by:
Artemy Kovalyov <artemyko@mellanox.com> Signed-off-by:
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Artemy Kovalyov authored
To make page fault handling code more flexible split pagefault_single_data_segment() function. Keep MR resolution in pagefault_single_data_segment() and move actual updates into pagefault_single_mr(). Signed-off-by:
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Artemy Kovalyov authored
Add IB_ACCESS_HUGETLB ib_reg_mr flag. Hugetlb region registered with this flag will use single translation entry per huge page. Signed-off-by:
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Artemy Kovalyov authored
Currenlty ODP supports only regular MMU pages. Add ODP support for regions consisting of physically contiguous chunks of arbitrary order (huge pages for instance) to improve performance. Signed-off-by:
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Artemy Kovalyov authored
Currenlty ODP supports only regular MMU pages. Add ODP support for regions consisting of physically contiguous chunks of arbitrary order (huge pages for instance) to improve performance. Signed-off-by:
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Artemy Kovalyov authored
Decrease verbosity level of ODP error flows messages to debug level. Remove one redundant print since debug level message already exists in this flow. Fixes: d9aaed83 ('{net,IB}/mlx5: Refactor page fault handling') Signed-off-by:
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Artemy Kovalyov authored
When implicit MR's leaf MKey becomes unused, i.e. when it's last page being released my MMU invalidation it is marked as "dying" and scheduled for release by garbage collector. Currentle consequent page fault may remove "dying" flag. Treat leaf MKey as non-existent once it was scheduled to removal by GC. Fixes: 81713d37 ('IB/mlx5: Add implicit MR support') Signed-off-by:
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Artemy Kovalyov authored
Translation table updates of large UMR may require multiple post send operations. The last operations can be in various lengths, but current code set them to be the same length. Fixes: 7d0cc6ed ('IB/mlx5: Add MR cache for large UMR regions') Signed-off-by:
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Artemy Kovalyov authored
In memory shortage path we fall back to use spare buffer. mlx5_ib_update_xlt() called from ib_uverbs_reg_mr when ibmr.ucontext not initialized yet. Scenario how to test it: 1. trigger memory exhaustion so __get_free_pages(GFP_KERNEL, 4) will fail 2. register MR 3. there should be no kernel oops Fixes: 7d0cc6ed ('IB/mlx5: Add MR cache for large UMR regions') Signed-off-by:
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Artemy Kovalyov authored
Size of pages are held by struct ib_umem in page_size field. It is better to store it as an exponent, because page size by nature is always power-of-two and used as a factor, divisor or ilog2's argument. The conversion of page_size to be page_shift allows to have portable code and avoid following error while compiling on ARM: ERROR: "__aeabi_uldivmod" [drivers/infiniband/core/ib_core.ko] undefined! CC: Selvin Xavier <selvin.xavier@broadcom.com> CC: Steve Wise <swise@chelsio.com> CC: Lijun Ou <oulijun@huawei.com> CC: Shiraz Saleem <shiraz.saleem@intel.com> CC: Adit Ranadive <aditr@vmware.com> CC: Dennis Dalessandro <dennis.dalessandro@intel.com> CC: Ram Amrani <Ram.Amrani@Cavium.com> Signed-off-by:
Shiraz Saleem <shiraz.saleem@intel.com> Acked-by:
Selvin Xavier <selvin.xavier@broadcom.com> Acked-by:
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Zhu Yanjun authored
The function ib_unregister_mad_agent always returns zero. And this returned value is not checked. As such, chane the return type to void. CC: Joe Jin <joe.jin@oracle.com> CC: Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by:
Zhu Yanjun <yanjun.zhu@oracle.com> Reviewed-by:
Yuval Shaia <yuval.shaia@oracle.com> Reviewed-by:
Hal Rosenstock <hal@mellanox.com> Signed-off-by:
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Selvin Xavier authored
Since ocrdma driver is not going to be updated with any new development activity, except for critical bug fixes reported by partners or customers, changing the module status to "Odd Fixes". Also, updating the web page info and the maintainers email addresses. Signed-off-by:
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Ira Weiny authored
Fix off by 1 error in comments documenting the sdma and send context mappings. Signed-off-by:
Ira Weiny <ira.weiny@intel.com> Signed-off-by:
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Geert Uytterhoeven authored
Submitters of device tree binding documentation may forget to CC the subsystem maintainer if this is missing. Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Cc: Doug Ledford <dledford@redhat.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: linux-rdma@vger.kernel.org Acked-by:
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Vlad Tsyrklevich authored
The 'num_sge' variable is verfied to be smaller than the 'sge_count' variable; however, since both are user-controlled it's possible to cause an integer overflow for the kmalloc multiply on 32-bit platforms (num_sge and sge_count are both defined u32). By crafting an input that causes a smaller-than-expected allocation it's possible to write controlled data out-of-bounds. Signed-off-by:
Vlad Tsyrklevich <vlad@tsyrklevich.net> Signed-off-by:
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Arnd Bergmann authored
hns_roce_v1_cq_set_ci() calls roce_set_bit() on an uninitialized field, which will then change only a few of its bits, causing a warning with the latest gcc: infiniband/hw/hns/hns_roce_hw_v1.c: In function 'hns_roce_v1_cq_set_ci': infiniband/hw/hns/hns_roce_hw_v1.c:1854:23: error: 'doorbell[1]' is used uninitialized in this function [-Werror=uninitialized] roce_set_bit(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_HW_SYNS_S, 1); The code is actually correct since we always set all bits of the port_vlan field, but gcc correctly points out that the first access does contain uninitialized data. This initializes the field to zero first before setting the individual bits. Fixes: 9a443537 ("IB/hns: Add driver files for hns RoCE driver") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Petr Mladek authored
Kthreads are currently implemented as an infinite loop. Each has its own variant of checks for terminating, freezing, awakening. In many cases it is unclear to say in which state it is and sometimes it is done a wrong way. The plan is to convert kthreads into kthread_worker or workqueues API. It allows to split the functionality into separate operations. It helps to make a better structure. Also it defines a clean state where no locks are taken, IRQs blocked, the kthread might sleep or even be safely migrated. The kthread worker API is useful when we want to have a dedicated single thread for the work. It helps to make sure that it is available when needed. Also it allows a better control, e.g. define a scheduling priority. This patch converts the frm_pool kthread into the kthread worker API because I am not sure how busy the thread is. It is well possible that it does not need a dedicated kthread and workqueues would be perfectly fine. Well, the conversion between kthread worker API and workqueues is pretty trivial. The patch moves one iteration from the kthread into the work function. It is queued only when there is a pending work. Therefore we do not need to compare flush_ser and req_ser at the beginning. On the contrary, the same work could be queued only once at a time. Therefore it has to re-queue itself if some requests are pending. Otherwise, wake_up_process() is replaced by queuing the work. Important: The change is only compile tested. I did not find an easy way how to check it in a real life. Signed-off-by:
Petr Mladek <pmladek@suse.com> TO: Doug Ledford <dledford@redhat.com> CC: Sean Hefty <sean.hefty@intel.com> CC: Hal Rosenstock <hal.rosenstock@gmail.com> CC: linux-rdma@vger.kernel.org Signed-off-by:
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Yuval Shaia authored
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:
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Yuval Shaia authored
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Colin Ian King authored
trivial fix to spelling mistake in iser_err error message Signed-off-by:
Max Gurtovoy <maxg@mellanox.com> Acked-by:
Sagi Grimberg <sagi@grimberg.me> Signed-off-by:
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Ganesh Goudar authored
Enable the use of dsgl by default and determine whether dsgl is supported from lld info. Signed-off-by:
Steve Wise <swise@opengridcomputing.com> Signed-off-by:
Bharat Potnuri <bharat@chelsio.com> Signed-off-by:
Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by:
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Doug Ledford authored
Constructs such as if (ptr && !IS_ERR(ptr)) can be shorted to just !IS_ERR_OR_NULL(ptr) instead. Make substitutions in the bnxt_re driver where appropriate. Signed-off-by: -
Colin Ian King authored
rc is initialized to zero but is then updated by calls to bnxt_qplib_free_fast_reg_page_list and/or bnxt_qpliob_free_mrw so the initialization is redundant and can be removed. Detected with CoverityScan, CID#1408448 ("Unused Value") Signed-off-by:Laurence Oberman <loberman@redhat.com> Signed-off-by:
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- 21 Apr, 2017 4 commits
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Noa Osherovich authored
Add missing calculation and translation of active_width and active_speed for RoCE. Fixes: 3f89a643 ('IB/mlx5: Extend query_device/port to ...') Signed-off-by:
Noa Osherovich <noaos@mellanox.com> Signed-off-by:
Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by:
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Noa Osherovich authored
In case of an error, the properties reported to user are zeroed out, so no need for a return value. Signed-off-by:
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Noa Osherovich authored
Add high data rate speed to the ib_port_speed enumeration. Signed-off-by:
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Moni Shoua authored
There is a difference when parsing a completion entry between Ethernet and IB ports. When link layer is Ethernet the bits describe the type of L3 header in the packet. In the case when link layer is Ethernet and VLAN header is present the value of SL is equal to the 3 UP bits in the VLAN header. If VLAN header is not present then the SL is undefined and consumer of the completion should check if IB_WC_WITH_VLAN is set. While that, this patch also fills the vlan_id field in the completion if present. Signed-off-by:
Moni Shoua <monis@mellanox.com> Reviewed-by:
Majd Dibbiny <majd@mellanox.com> Signed-off-by:
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