- 22 Dec, 2017 15 commits
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Tatyana Nikolova authored
The accepting QP ORD value should be adjusted not to exceed the peer QP IRD value (RFC 6581). This is skipped for loopback. After the ORD is validated by i40iw_record_ird_ord(), adjust the ORD value of the loopback accepting QP to prevent overrunning the IRD space of the peer QP. Also move the ORD accounting for 0-byte RDMA read to i40iw_record_ird_ord(). Fixes: f27b4746 ("i40iw: add connection management code") Signed-off-by:
Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by:
Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by:
Jason Gunthorpe <jgg@mellanox.com>
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Tatyana Nikolova authored
Casting to u16 before validating IRD/ORD connection parameters could cause recording wrong IRD/ORD values in the cm_node. Validate the IRD/ORD parameters as they are passed by the application before recording them. Fixes: f27b4746 ("i40iw: add connection management code") Signed-off-by:
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Shiraz Saleem authored
The LLP_DOUBT_REACHABILITY Asynchronous Event (AE) is an early warning of a connection issue. It is followed by LLP_TOO_MANY_RETRIES AE, if the retransmit threshold is reached and recovery is not possible for the connection. Currently we terminate the connection on receiving the LLP_DOUBT_REACHABILITY AE. Ignore this AE and terminate the connection only on LLP_TOO_MANY_RETRIES AE. This improves the user experience on cable disconnect/reconnect scenario while running iWARP traffic. On cable disconnect, the QP traffic is paused and the user has a larger and more reasonable timeout within which if the cable is reconnected, traffic can continue. Signed-off-by:
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Shiraz Saleem authored
Partial FPDU processing is broken as the sequence number for the first partial FPDU is wrong due to incorrect Q2 buffer offset. The offset should be 64 rather than 16. Fixes: 786c6adb ("i40iw: add puda code") Signed-off-by:
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Shiraz Saleem authored
On IP address change event, all connected QPs are torn down irrespective of whether IP address is involved in a connection. Only teardown connections those source or destination address matches the netdev interface IP address being changed, and if they are on the same VLAN as the netdev. Fixes: e5e74b61 ("i40iw: Add IP addr handling on netdev events") Signed-off-by:
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Shiraz Saleem authored
Register a netdevice notifier for netdev UP/DOWN notification events and report the appropriate ib event. Signed-off-by:
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Shiraz Saleem authored
Lower Inbound RDMA Read Queue (Q1) object count by a factor of 2 as it is incorrectly doubled. Also, round up Q1 and Transmit FIFO (XF) object count to power of 2 to satisfy hardware requirement. Fixes: 86dbcd0f ("i40iw: add file to handle cqp calls") Signed-off-by:
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Shiraz Saleem authored
Consolidate all power of 2 round calculations to use kernel utility function roundup_pow_of_two(). Signed-off-by:
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Shiraz Saleem authored
Increase I40IW_MAX_IRD_SIZE to 64 which is the device limit. Signed-off-by:
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Dennis Dalessandro authored
Ensure both Mike and I are listed as maintainer contacts for Intel's qib, hfi1, and rdmavt drivers. Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
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Venkata Sandeep Dhanalakota authored
SA queries SM for class port info when there is a LID_CHANGE event. When a base lid is configured before fm is started ie when smlid is not yet assigned, SA handles the LID_CHANGE event and tries query SM with lid 0. This will cause an hang. [ 1106.958820] INFO: task kworker/2:0:23 blocked for more than 120 seconds. [ 1106.965082] Tainted: G O 4.12.0+ #1 [ 1106.969602] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1106.977227] kworker/2:0 D 0 23 2 0x00000000 [ 1106.977250] Workqueue: infiniband update_ib_cpi [ib_core] [ 1106.977261] Call Trace: [ 1106.977273] __schedule+0x28e/0x860 [ 1106.977285] schedule+0x36/0x80 [ 1106.977298] schedule_timeout+0x1a3/0x2e0 [ 1106.977310] ? radix_tree_iter_tag_clear+0x1b/0x20 [ 1106.977322] ? idr_alloc+0x64/0x90 [ 1106.977334] wait_for_completion+0xe3/0x140 [ 1106.977347] ? wake_up_q+0x80/0x80 [ 1106.977369] update_ib_cpi+0x163/0x210 [ib_core] [ 1106.977381] process_one_work+0x147/0x370 [ 1106.977394] worker_thread+0x4a/0x390 [ 1106.977406] kthread+0x109/0x140 [ 1106.977418] ? process_one_work+0x370/0x370 [ 1106.977430] ? kthread_park+0x60/0x60 [ 1106.977443] ret_from_fork+0x22/0x30 Always ensure a proper smlid is assigned before querying SM for cpi. Fixes: ee1c60b1 ("IB/SA: Modify SA to implicitly cache Class Port info") Reviewed-by:
Ira Weiny <ira.weiny@intel.com> Signed-off-by:
Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com> Signed-off-by:
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Shiraz Saleem authored
The accelerated flag only utilizes two values: 0 and 1. Modify accelerated flag in struct nes_cm_node to bool. Signed-off-by:
Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by:
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Pravin Shedge authored
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:
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Yixian Liu authored
This patch adds eq support for hip08. The eq table can be multi-hop addressed. Signed-off-by:
Yixian Liu <liuyixian@huawei.com> Reviewed-by:
Lijun Ou <oulijun@huawei.com> Reviewed-by:
Wei Hu (Xavier) <xavier.huwei@huawei.com> Signed-off-by:
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Yixian Liu authored
Considering the compatibility of supporting hip08's eq process and possible changes of data structure, this patch refactors the eq code structure of hip06. We move all the eq process code for hip06 from hns_roce_eq.c into hns_roce_hw_v1.c, and also for hns_roce_eq.h. With these changes, it will be convenient to add the eq support for later hardware version. Signed-off-by:
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- 21 Dec, 2017 1 commit
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Anton Vasilyev authored
Debugfs file reset_stats is created with S_IRUSR permissions, but ocrdma_dbgfs_ops_read() doesn't support OCRDMA_RESET_STATS, whereas ocrdma_dbgfs_ops_write() supports only OCRDMA_RESET_STATS. The patch fixes misstype with permissions. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by:
Anton Vasilyev <vasilyev@ispras.ru> Acked-by:
Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by:
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- 18 Dec, 2017 24 commits
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Bharat Potnuri authored
isert commands that failed during isert_rdma_rw_ctx_post() are queued to Queue-Full(QF) queue and are scheduled to be reposted during queue-full queue processing. During this reposting, the rdma contexts are initialised again in isert_rdma_rw_ctx_post(), which is leaking significant memory. unreferenced object 0xffff8830201d9640 (size 64): comm "kworker/0:2", pid 195, jiffies 4295374851 (age 4528.436s) hex dump (first 32 bytes): 00 60 8b cb 2e 00 00 00 00 10 00 00 00 00 00 00 .`.............. 00 90 e3 cb 2e 00 00 00 00 10 00 00 00 00 00 00 ................ backtrace: [<ffffffff8170711e>] kmemleak_alloc+0x4e/0xb0 [<ffffffff811f8ba5>] __kmalloc+0x125/0x2b0 [<ffffffffa046b24f>] rdma_rw_ctx_init+0x15f/0x6f0 [ib_core] [<ffffffffa07ab644>] isert_rdma_rw_ctx_post+0xc4/0x3c0 [ib_isert] [<ffffffffa07ad972>] isert_put_datain+0x112/0x1c0 [ib_isert] [<ffffffffa07dddce>] lio_queue_data_in+0x2e/0x30 [iscsi_target_mod] [<ffffffffa076c322>] target_qf_do_work+0x2b2/0x4b0 [target_core_mod] [<ffffffff81080c3b>] process_one_work+0x1db/0x5d0 [<ffffffff8108107d>] worker_thread+0x4d/0x3e0 [<ffffffff81088667>] kthread+0x117/0x150 [<ffffffff81713fa7>] ret_from_fork+0x27/0x40 [<ffffffffffffffff>] 0xffffffffffffffff Here is patch to use the older rdma contexts while reposting the isert commands intead of reinitialising them. Signed-off-by:Potnuri Bharat Teja <bharat@chelsio.com> Reviewed-by:
Sagi Grimberg <sagi@grimberg.me> Signed-off-by:
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Parav Pandit authored
When path ah_attr initialization from path record fails, ib_cm_send_rej() uses av.ah_attr fields to send out reject message. In such cases initialization of path record software fields is not needed. Code is simplified for same. Additionally in current code in cm_req_handler, when ib_get_cached_gid fails for a given sgid_index of the GID of the GRH of the incoming CM MAD, error code 12 is sent. This error code refers to primary GID in incoming CM REQ and not for the GID in in MAD packet. Therefore code is refactored to send code 5 (unsupported request) for such error. Signed-off-by:
Parav Pandit <parav@mellanox.com> Reviewed-by:
Hal Rosenstock <hal@mellanox.com> Signed-off-by:
Leon Romanovsky <leon@kernel.org> Signed-off-by:
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Parav Pandit authored
Currently ib_init_ah_from_wc initializes address handle attributes and not the address handle object itself. To avoid confusion between ah_attr vs ah, ib_init_ah_from_wc is renamed to ib_init_ah_attr_from_wc to reflect that its initialzes ah_attr. Signed-off-by:
Daniel Jurgens <danielj@mellanox.com> Signed-off-by:
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Parav Pandit authored
Since ib_init_ah_from_path initializes the address handle attribute, it is renamed to reflect so. Signed-off-by:
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Parav Pandit authored
In case of LAP are used for RoCE, it can lead to a problem of sleeping a context while spin lock is held in below flow. cm_lap_handler ->spin_lock -> <..switch_case..> -> cm_init_av_for_response -> ib_init_ah_from_wc -> rdma_addr_find_l2_eth_by_grh wait_for_completion() Therefore ah attribute initialization is done for incoming lap requests outside of the lock context. Signed-off-by:
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Parav Pandit authored
cm_init_av_by_path depends on ib_init_ah_from_path to initialize ah attribute and ib_init_ah_from_path() can fail, such error should not be ignored. Signed-off-by:
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Parav Pandit authored
cm_init_av_for_response depends on ib_init_ah_from_wc() whose return status is ignored. ib_init_ah_from_wc() can fail and its return status should be handled as done in this patch. Signed-off-by:
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Parav Pandit authored
Currently there are no users of ib_find_gid for RoCE transport. It is only used by IPoIB. Therefore its simplified to ignore RoCE ports and GID type check which was previously done for every port. Signed-off-by:
Eli Cohen <eli@mellanox.com> Signed-off-by:
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Parav Pandit authored
rdma_copy_addr copies the ifndex to bound_dev_if. Therefore avoid copying it again after rdma_copy_addr call is completed. Signed-off-by:
Moni Shoua <monis@mellanox.com> Signed-off-by:
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Parav Pandit authored
Since no caller needs vlan, rdma_translate_ip is simplified to avoid vlan pointer. Signed-off-by:
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Parav Pandit authored
rdma_addr_find_smac_by_sgid() is exported symbol not used by any kernel module. Therefore its removed. Signed-off-by:
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Parav Pandit authored
rdma_resolve_ip already copies 'addr' to its dev_addr argument. Remove the duplicate memcpy and since it was the only user, remove the 'addr' member from resolve_cb_context. Signed-off-by:
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Parav Pandit authored
ib_find_gid_by_filter() is used only by ib_core, therefore avoid exporting it. Signed-off-by:
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Parav Pandit authored
While searching for GID, returned index is not used, so avoid passing pointer during invocation. Signed-off-by:
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Parav Pandit authored
Currently on every gid entry comparison miss found variable is checked; which is not needed as those two comparison fail already indicate that GID is not found yet. So refactor to avoid such check and copy the GID index when found. Signed-off-by:
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Parav Pandit authored
Type cast from void to struct find_gid_index_context is not needed. Signed-off-by:
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Parav Pandit authored
Introduce and user helper functions to initialize work for address resolved and route resolved event that avoid code duplication at few places. Signed-off-by:
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Parav Pandit authored
Avoid setting path record type twice for RoCE. Signed-off-by:
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Parav Pandit authored
Current code checks for NULL ndev twice where 2nd check is always invalid given the fact that during route resolving stage, device address must be bound to netdevice interface. This patch simplifies such check. Signed-off-by:
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Parav Pandit authored
As the function name suggests cma_resolve_iboe_route() resolves RoCE route. However, its default GID type is IB_GID_TYPE_IB and not IB_GID_TYPE_ROCE, even though both are mapped to the same enum value. Change default GID type to IB_GID_TYPE_ROCE. cma_iboe_set_mgid() is updated to reflect the RoCEv2 GID check. Signed-off-by:
Noa Osherovich <noaos@mellanox.com> Signed-off-by:
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Artemy Kovalyov authored
In ib_umem structure npages holds original number of sg entries, while nmap is number of DMA blocks returned by dma_map_sg. Fixes: c5d76f13 ('IB/core: Add umem function to read data from user-space') Signed-off-by:
Artemy Kovalyov <artemyko@mellanox.com> Signed-off-by:
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Daniel Jurgens authored
Add debug prints to the error paths in the connection manager control flows, to help debug connection management problems. Signed-off-by:
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Matan Barak authored
In cm_req_handler error flows, sometimes cm_id_priv->timewait_info isn't free'd. Signed-off-by:
Matan Barak <matanb@mellanox.com> Signed-off-by:
Mukesh Kacker <mukesh.kacker@oracle.com> Signed-off-by:
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Parav Pandit authored
The code was using the src size when formatting the dst. They are almost certainly the same value but it reads wrong. Fixes: ce117ffa ("RDMA/cma: Export AF_IB statistics") Signed-off-by:
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