- 18 Jan, 2018 14 commits
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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:
Bart Van Assche <bart.vanassche@wdc.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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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 11 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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Bodong Wang authored
The change of slid from u16 to u32 results in sizeof(struct ib_wc) cross 64B boundary, which causes more cache misses. This patch rearranges the fields and remain the size to 64B. Pahole output before this change: struct ib_wc { union { u64 wr_id; /* 8 */ struct ib_cqe * wr_cqe; /* 8 */ }; /* 0 8 */ enum ib_wc_status status; /* 8 4 */ enum ib_wc_opcode opcode; /* 12 4 */ u32 vendor_err; /* 16 4 */ u32 byte_len; /* 20 4 */ struct ib_qp * qp; /* 24 8 */ union { __be32 imm_data; /* 4 */ u32 invalidate_rkey; /* 4 */ } ex; /* 32 4 */ u32 src_qp; /* 36 4 */ int wc_flags; /* 40 4 */ u16 pkey_index; /* 44 2 */ /* XXX 2 bytes hole, try to pack */ u32 slid; /* 48 4 */ u8 sl; /* 52 1 */ u8 dlid_path_bits; /* 53 1 */ u8 port_num; /* 54 1 */ u8 smac[6]; /* 55 6 */ /* XXX 1 byte hole, try to pack */ u16 vlan_id; /* 62 2 */ /* --- cacheline 1 boundary (64 bytes) --- */ u8 network_hdr_type; /* 64 1 */ /* size: 72, cachelines: 2, members: 17 */ /* sum members: 62, holes: 2, sum holes: 3 */ /* padding: 7 */ /* last cacheline: 8 bytes */ }; Pahole output after this change: struct ib_wc { union { u64 wr_id; /* 8 */ struct ib_cqe * wr_cqe; /* 8 */ }; /* 0 8 */ enum ib_wc_status status; /* 8 4 */ enum ib_wc_opcode opcode; /* 12 4 */ u32 vendor_err; /* 16 4 */ u32 byte_len; /* 20 4 */ struct ib_qp * qp; /* 24 8 */ union { __be32 imm_data; /* 4 */ u32 invalidate_rkey; /* 4 */ } ex; /* 32 4 */ u32 src_qp; /* 36 4 */ u32 slid; /* 40 4 */ int wc_flags; /* 44 4 */ u16 pkey_index; /* 48 2 */ u8 sl; /* 50 1 */ u8 dlid_path_bits; /* 51 1 */ u8 port_num; /* 52 1 */ u8 smac[6]; /* 53 6 */ /* XXX 1 byte hole, try to pack */ u16 vlan_id; /* 60 2 */ u8 network_hdr_type; /* 62 1 */ /* size: 64, cachelines: 1, members: 17 */ /* sum members: 62, holes: 1, sum holes: 1 */ /* padding: 1 */ }; Cc: <stable@vger.kernel.org> # v4.13 Fixes: 7db20ecd ("IB/core: Change wc.slid from 16 to 32 bits") Signed-off-by:Bodong Wang <bodong@mellanox.com> Reviewed-by:
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Jack Morgenstein authored
Allocating steerable UD QPs depends on having at least one IB port, while releasing those QPs does not. As a result, when there are only ETH ports, the IB (RoCE) driver requests releasing a qp range whose base qp is zero, with qp count zero. When SR-IOV is enabled, and the VF driver is running on a VM over a hypervisor which treats such qp release calls as errors (rather than NOPs), we see lines in the VM message log like: mlx4_core 0002:00:02.0: Failed to release qp range base:0 cnt:0 Fix this by adding a check for a zero count in mlx4_release_qp_range() (which thus treats releasing 0 qps as a nop), and eliminating the check for device managed flow steering when releasing steerable UD QPs. (Freeing ib_uc_qpns_bitmap unconditionally is also OK, since it remains NULL when steerable UD QPs are not allocated). Cc: <stable@vger.kernel.org> Fixes: 4196670b ("IB/mlx4: Don't allocate range of steerable UD QPs for Ethernet-only device") Signed-off-by:
Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by:
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Jason Gunthorpe authored
The double swap matches what user space rdma-core does to imm_data. wc->imm_data is not used in the kernel so this change has no practical impact. Acked-by:
Michal Kalderon <michal.kalderon@cavium.com> Signed-off-by:
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Jason Gunthorpe authored
This matches the changes made recently to the userspace hns driver when it was made sparse clean. See rdma-core commit bffd380cfe56 ("libhns: Make the provider sparse clean") wc->imm_data is not used in the kernel so this change has no practical impact. Signed-off-by: -
Jason Gunthorpe authored
This matches what the userspace copy of this header has been doing for a while. imm_data is an opaque 4 byte array carried over the network, and invalidate_rkey is in CPU byte order. Signed-off-by: -
Parav Pandit authored
Resolving DMAC for RoCE is applicable to only Connected mode QPs. So resolve DMAC for only for Connected mode QPs. Signed-off-by:
Daniel Jurgens <danielj@mellanox.com> Signed-off-by:
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Parav Pandit authored
Instead of returning 0 (success) for RoCE scenarios where DMAC should not be resolved, avoid such attempt and make code consistent with ib_create_user_ah(). Signed-off-by:
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Parav Pandit authored
Currently ah_attr is initialized by the ib_cm layer for rdma_cm based applications. For RoCE transport ah_attr.roce.dmac is already initialized by ib_cm, rdma_cm either from wc, path record, route resolve, explicit path record setting depending on active or passive side QP. Therefore avoid resolving DMAC for QP of kernel consumers. Signed-off-by:
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Parav Pandit authored
Currently qp->port stores the port number whenever IB_QP_PORT QP attribute mask is set (during QP state transition to INIT state). This port number should be stored for the real QP when XRC target QP is used. Follow the ib_modify_qp() implementation and hide the access to ->real_qp. Fixes: a512c2fb ("IB/core: Introduce modify QP operation with udata") Signed-off-by:
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- 11 Jan, 2018 1 commit
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Randy Dunlap authored
Use correct parameter names and formatting in function kernel-doc notation to eliminate warnings from scripts/kernel-doc. ../drivers/infiniband/sw/rdmavt/mr.c:784: warning: Excess function parameter 'ibmfr' description in 'rvt_map_phys_fmr' ../drivers/infiniband/sw/rdmavt/vt.c:234: warning: Excess function parameter 'intex' description in 'rvt_query_pkey' ../drivers/infiniband/sw/rdmavt/vt.c:266: warning: Excess function parameter 'index' description in 'rvt_query_gid' ../drivers/infiniband/sw/rdmavt/vt.c:306: warning: Excess function parameter 'data' description in 'rvt_alloc_ucontext' ../drivers/infiniband/sw/rdmavt/cq.c:65: warning: Excess function parameter 'sig' description in 'rvt_cq_enter' ../drivers/infiniband/sw/rdmavt/qp.c:279: warning: Excess function parameter 'qpt' description in 'rvt_free_all_qps' ../drivers/infiniband/sw/rdmavt/mcast.c:282: warning: Excess function parameter 'igd' description in 'rvt_attach_mcast' ../drivers/infiniband/sw/rdmavt/mcast.c:345: warning: Excess function parameter 'igd' description in 'rvt_detach_mcast' Signed-off-by:
Randy Dunlap <rdunlap@infradead.org> Cc: Doug Ledford <dledford@redhat.com> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: linux-doc@vger.kernel.org Acked-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
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