- 18 Jan, 2018 24 commits
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Bart Van Assche authored
If a receive I/O context is removed from the wait list and srpt_handle_new_iu() fails to allocate a send I/O context then re-adding the receive I/O context to the wait list can cause reordering. Avoid this by only removing a receive I/O context from the wait list after allocating a send I/O context succeeded. Signed-off-by:
Bart Van Assche <bart.vanassche@wdc.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Bart Van Assche authored
Wait list processing only occurs if the channel state >= CH_LIVE. Hence set the channel state to CH_LIVE before triggering wait list processing asynchronously. Signed-off-by:
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Bart Van Assche authored
Make sure that sport->mutex is not released between the duplicate channel check, adding a channel to the channel list and performing the sport enabled check. Avoid that srpt_disconnect_ch() can be invoked concurrently with the ib_send_cm_rep() call by srpt_cm_req_recv(). Signed-off-by:
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Bart Van Assche authored
The new pr_debug() statements are useful when debugging the ib_srpt driver. Signed-off-by:
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Bart Van Assche authored
Move a mutex lock and unlock statement from srpt_close_session() into srpt_disconnect_ch_sync(). Since the previous patch removed the last user of the return value of that function, change the return value of srpt_disconnect_ch_sync() into void. Signed-off-by:
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Bart Van Assche authored
Store initiator and target port ID's once per nexus instead of in each channel data structure. This change simplifies the duplicate connection check in srpt_cm_req_recv(). Signed-off-by:
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Bart Van Assche authored
Use the source GID as session name instead of the initiator port ID from the SRP login request. The only functional change in this patch is that it changes the session name shown in debug messages. Note: the fifth argument that is passed to target_alloc_session() is what the SCSI target core uses as key for lookups in the ACL (access control list) information. Signed-off-by:
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Bart Van Assche authored
In multipathing setups where a target system is equipped with dual-port HCAs it is useful to have one connection per target port instead of one connection per target HCA. Hence move the connection list (rch_list) from struct srpt_device into struct srpt_port. Signed-off-by:
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Bart Van Assche authored
Process connection requests that use another P_Key than the default correctly. Signed-off-by:
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Bart Van Assche authored
This patch fixes a use-after-free issue for ch->release_done when running the SRP protocol on top of the rdma_rxe driver. Signed-off-by:
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Bart Van Assche authored
The next patch will iterate over rch_list from a context from which it is not allowed to block. Hence make rch_list RCU-safe. Signed-off-by:
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Bart Van Assche authored
This patch does not change any functionality but prepares for the patch that adds RDMA_CM support by making the RDMA_CM patch much easier to read. Signed-off-by:
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Bart Van Assche authored
Show all path record query parameters if a path record query fails. Signed-off-by:
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Bart Van Assche authored
Use kstrtoull() since simple_strtoull() is deprecated. This patch improves error checking but otherwise does not change any functionality. Signed-off-by:
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weiyongjun (A) authored
devm_ioremap_resource() already checks if the resource is NULL, so remove the unnecessary platform_get_resource() error check. Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by:
Leon Romanovsky <leonro@mellanox.com> Signed-off-by:
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Feras Daoud authored
This patch maps the new page to user space applications to allow converting a user space completion timestamp to system wall time at the lowest possible latency cost. By using a versioning scheme we allow compatibility between current and future userspace libraries. The change moves mlx5_ib_mmap_cmd enum from mlx5_ib.h to the abi header file mlx5-abi.h. Reviewed-by:
Alex Vesker <valex@mellanox.com> Reviewed-by:
Yishai Hadas <yishaih@mellanox.com> Signed-off-by:
Feras Daoud <ferasda@mellanox.com> Signed-off-by:
Eitan Rabin <rabin@mellanox.com> Signed-off-by:
Leon Romanovsky <leon@kernel.org> Signed-off-by:
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Feras Daoud authored
Adds a new page to mlx5 core containing clock info data that allows user level applications to translate between cqe timestamp to nanoseconds. The information stored into this page is represented through mlx5_ib_clock_info. In order to synchronize between kernel and user space a sequence number is incremented at the beginning and end of each update. An odd number means the data is being updated while an even means the access was already done. To guarantee that the data structure was accessed atomically user will: repeat: seq1 = <read sequence> goto <repeate> while odd <read data structure> seq2 = <read sequence> if seq1 != seq2 goto repeat Reviewed-by:Jason Gunthorpe <jgg@mellanox.com> Reviewed-by:
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Sagi Grimberg authored
polling the completion queue directly does not interfere with the existing polling logic, hence drop the requirement. Be aware that running ib_process_cq_direct with non IB_POLL_DIRECT CQ may trigger concurrent CQ processing. This can be used for polling mode ULPs. Cc: Bart Van Assche <bart.vanassche@wdc.com> Reported-by:
Steve Wise <swise@opengridcomputing.com> Signed-off-by:
Sagi Grimberg <sagi@grimberg.me> [maxg: added wcs array argument to __ib_process_cq] Signed-off-by:
Max Gurtovoy <maxg@mellanox.com> Signed-off-by:
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Max Gurtovoy authored
No need to initialize completion and WR in case we fail during QP modification. Signed-off-by:
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Bart Van Assche authored
rxe_qp_cleanup() can sleep so it must be run in thread context and not in atomic context. This patch avoids that the following bug is triggered: Kernel BUG at 00000000560033f3 [verbose debug info unavailable] BUG: sleeping function called from invalid context at net/core/sock.c:2761 in_atomic(): 1, irqs_disabled(): 0, pid: 7, name: ksoftirqd/0 INFO: lockdep is turned off. Preemption disabled at: [<00000000b6e69628>] __do_softirq+0x4e/0x540 CPU: 0 PID: 7 Comm: ksoftirqd/0 Not tainted 4.15.0-rc7-dbg+ #4 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.0.0-prebuilt.qemu-project.org 04/01/2014 Call Trace: dump_stack+0x85/0xbf ___might_sleep+0x177/0x260 lock_sock_nested+0x1d/0x90 inet_shutdown+0x2e/0xd0 rxe_qp_cleanup+0x107/0x140 [rdma_rxe] rxe_elem_release+0x18/0x80 [rdma_rxe] rxe_requester+0x1cf/0x11b0 [rdma_rxe] rxe_do_task+0x78/0xf0 [rdma_rxe] tasklet_action+0x99/0x270 __do_softirq+0xc0/0x540 run_ksoftirqd+0x1c/0x70 smpboot_thread_fn+0x1be/0x270 kthread+0x117/0x130 ret_from_fork+0x24/0x30 Signed-off-by:
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Bart Van Assche authored
The rxe driver works as follows: * The send queue, receive queue and completion queues are implemented as circular buffers. * ib_post_send() and ib_post_recv() calls are serialized through a spinlock. * Removing elements from various queues happens from tasklet context. Tasklets are guaranteed to run on at most one CPU. This serializes access to these queues. See also rxe_completer(), rxe_requester() and rxe_responder(). * rxe_completer() processes the skbs queued onto qp->resp_pkts. * rxe_requester() handles the send queue (qp->sq.queue). * rxe_responder() processes the skbs queued onto qp->req_pkts. Since rxe_drain_req_pkts() processes qp->req_pkts, calling rxe_drain_req_pkts() from rxe_requester() is racy. Hence this patch. Reported-by:
Moni Shoua <monis@mellanox.com> Signed-off-by:
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Devesh Sharma authored
Shared receive queue (SRQ) is defined as a pool of receive buffers shared among multiple QPs which belong to same protection domain in a given process context. Use of SRQ reduces the memory foot print of IB applications. Broadcom adapters support SRQ, adding code-changes to enable shared receive queue. Signed-off-by:
Devesh Sharma <devesh.sharma@broadcom.com> Signed-off-by:
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Selvin Xavier authored
Broadcom's adapter supports more granular statistics to allow better understanding about the state of the chip when data traffic is flowing. Exposing the detailed stats to the consumer through the standard hook available in the kverbs interface. In order to retrieve all the information, driver implements a firmware command. Signed-off-by:
Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by:
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Somnath Kotur authored
Depending on the OS page-table configurations, applications may request MRs which has page size alignment other than 4K Underlying provider driver needs to adjust its PBL boundaries according to the incoming page boundaries in the PA list. Adding a capability to register MRs having pages-sizes other than 4K (Hugepages). Signed-off-by:
Somnath Kotur <somnath.kotur@broadcom.com> Signed-off-by:
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- 17 Jan, 2018 14 commits
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Selvin Xavier authored
The device now reports firmware version thus, removing the hard coded values of the FW version string and redundant fw_rev hook from sysfs. Adding code to query firmware version from underlying device and report it through the kernel verb to get firmware version string. Signed-off-by:
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Selvin Xavier authored
RoCE can be used by virtual functions (VFs) as well. Adding code changes to allow resource reservation, initialization and avail the resources to the RDMA applications running on those VFs. Currently, fifty percent of the total available resources are reserved for PF and remaining are equally divided among active VFs. Signed-off-by:
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Mustafa Ismail authored
The iWARP Exception Queue (IEQ) resources are not freed when a QP is destroyed. Fix this by freeing IEQ resources when freeing QP resources. Fixes: d3749841 ("i40iw: add files for iwarp interface") Signed-off-by:
Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by:
Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by:
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Mustafa Ismail authored
Remove setting of rem_addr.len before calling iw_rdma_write, iw_inline_rdma_write and rdma_read. rem_addr.len is not used in those functions. Signed-off-by:
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Sindhu Devale authored
Currently, if the number of processed Asynchronous Event Queue (AEQ) entries exceeds 255, they are not returned to HW for re-use. During scale-up, the unreturned AEQ entries can grow to the max AEQ size and cause the HW to report an AEQ overflow. Remove the check which limits the number of processed AEQ entries returned to HW. Fixes: 86dbcd0f ("RDMA/i40iw: add file to handle cqp calls") Signed-off-by:
Sindhu Devale <sindhu.devale@intel.com> Signed-off-by:
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Shiraz Saleem authored
If the application invalidates the MR before the FMR WR, HW parses the consumer key portion of the stag and returns an invalid stag key Asynchronous Event (AE) that tears down the QP. Fix this by zeroing-out the consumer key portion of the allocated stag returned to application for FMR. Fixes: ee855d3b93f3 ("RDMA/i40iw: Add base memory management extensions") Signed-off-by: -
Shiraz Saleem authored
Remove redundant estimate SD function call. sd_needed should already be updated at the end of the do while resource reduction loop. Signed-off-by:
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oulijun authored
This patch assign a guid(Global Unique identifer) value to the hip08 device. Signed-off-by:
Lijun Ou <oulijun@huawei.com> Signed-off-by:
Yixian Liu <liuyixian@huawei.com> Signed-off-by:
Wei Hu (Xavier) <xavier.huwei@huawei.com> Reviewed-by:
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oulijun authored
If the port is a RoCEv2 port, the remote port address and QP information which returned for UD will be modified. Signed-off-by:
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oulijun authored
Because pkey is fixed for hip08 RoCE, it needs to assign zero for pkey_index of wc. otherwise, it will happen an error when establishing connection by communication management mechanism. Signed-off-by:
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oulijun authored
This patch mainly configure the fields of sq wqe of ud type when posting wr of gsi qp type. Signed-off-by:
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oulijun authored
It needs to Assign the values for some fields in qp context when qp type is gsi qp type in hip08. Signed-off-by:
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oulijun authored
The gsi qp and rc qp use the same qp context structure and the created flow, only differentiate them by qpn and qp type. Signed-off-by:
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oulijun authored
When modifying qp from init to init, it need to assign the cqn of send cq for tx cqn field of qp context. Otherwise, it will cause a mistake when the send and recv cq sizes are different. Signed-off-by:
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- 15 Jan, 2018 2 commits
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Xiongfeng Wang authored
gcc-8 reports drivers/infiniband/core/cma_configfs.c: In function 'make_cma_dev': ./include/linux/string.h:245:9: warning: '__builtin_strncpy' specified bound 64 equals destination size [-Wstringop-truncation] We need to use strlcpy() to make sure the string is nul-terminated. Signed-off-by:
Xiongfeng Wang <xiongfeng.wang@linaro.org> Reviewed-by:
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Parav Pandit authored
iWARP does not use rdma_ah_attr_type, and for this reason we do not have a RDMA_AH_ATTR_TYPE_IWARP. rdma_ah_find_type should not even be called on iwarp ports and for clarity it shouldn't have a special test for iWarp. This changes the result from RDMA_AH_ATTR_TYPE_ROCE to RDMA_AH_ATTR_TYPE_IB when wrongly called on an iWarp port. Fixes: 44c58487 ("IB/core: Define 'ib' and 'roce' rdma_ah_attr types") Signed-off-by:
Parav Pandit <parav@mellanox.com> Signed-off-by:
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