- 10 Aug, 2017 15 commits
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Leon Romanovsky authored
Introduce intermediate variable to store access to fields of cb_table. Signed-off-by:
Leon Romanovsky <leonro@mellanox.com> Reviewed-by:
Steve Wise <swise@opengridcomputing.com>
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Leon Romanovsky authored
The .doit callback is used by netlink core to differentiate between get and set operations. Common convention is to use that call for command operations like (SET, ADD, e.t.c.) and/or access without NLF_M_DUMP flag. This commit adds proper declaration and implementation to RDMA netlink. Signed-off-by:
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Leon Romanovsky authored
This patch adds static device index in similar fashion to already available in netdev world (struct net->ifindex). In downstream patches, the RDMA nelink will use this idx-to-ib_device conversion, so as part of this commit, we are exposing the translation function to be visible for IB/core users. Signed-off-by: -
Leon Romanovsky authored
The coming nldev needs to iterate over all IB devices in the system and in order to not expose the ib_devices list outside the devices.c, it is necessary to provide function iterator. Current version is written explicitly for nldev callback to avoid over-engineering at this stage, but it can be easily extended for other types. Signed-off-by:
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Leon Romanovsky authored
The RDMA netlink client infrastructure was removed and made obsolete. The old infrastructure defined struct ibnl_client_cbs. Now that all uses of this have been updated to the new infrastructure, rename the struct to be compliant with the current stack naming standards: struct rdma_nl_cbs. Signed-off-by:
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Leon Romanovsky authored
Make ibnl_chk_listeners function to be one line by removing unneeded comparison. Rename that function to be complaint to other functions in RDMA netlink. Signed-off-by:
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Leon Romanovsky authored
The pointer to netlink header was not used in the ibnl_multicast function, so let's remove it and simplify the function signature. Signed-off-by:
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Leon Romanovsky authored
Netlink message header is not needed for unicast reply, hence remove it. Signed-off-by:
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Leon Romanovsky authored
Reuse standard macros to cancel the netlink message in case of error. Signed-off-by:
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Leon Romanovsky authored
Add ability to provide flags to control RDMA netlink callbacks and convert addr.c and sa_query.c to be first users of such infrastructure. It allows to move their CAP_NET_ADMIN checks into netlink core. Signed-off-by:
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Leon Romanovsky authored
The iwcm exports functions which are not used outside of ib_core. This patch simply removes these EXPORT_SYMBOLS. Signed-off-by:
Chien Tin Tung <chien.tin.tung@intel.com>
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Leon Romanovsky authored
RDMA netlink implementation guarantees that supplied client number is in allowed range. Signed-off-by:
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Leon Romanovsky authored
The standard netlink_rcv_skb function skips messages without NLM_F_REQUEST flag in it, while SA netlink client issues them. In commit bc10ed7d ("IB/core: Add rdma netlink helper functions") the local function was introduced to allow such messages. This led to double pass for every incoming message. In this patch, we unify that local implementation and netlink_rcv_skb functions, so there will be no need for double pass anymore. As a outcome, this combined function gained more strict check for NLM_F_REQUEST flag and it is now allowed for SA pathquery client only. Signed-off-by:
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Leon Romanovsky authored
Owner field is not needed to be set because netlink is part of ib_core which will be unloaded last after all other modules are unloaded. Signed-off-by: -
Leon Romanovsky authored
RDMA netlink has a complicated infrastructure for dynamically registering and de-registering netlink clients to the NETLINK_RDMA group. The complicated portion of this code is not widely used because 2 of the 3 current clients are statically compiled together with netlink.c. The infrastructure, therefore, is deemed overkill. Refactor the code to eliminate the dynamically added clients. Now all clients are pre-registered in a client array at compile time, and at run time they merely check-in with the infrastructure to pass their callback table for inclusion in the pre-sized client array. This also allows for future cleanups and removal of unneeded code in the iwcm* netlink handler. Signed-off-by:
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- 09 Aug, 2017 1 commit
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Ismail, Mustafa authored
Add a wait/retry version of ibnl_unicast, ibnl_unicast_wait, and modify ibnl_unicast to not wait/retry. This eliminates the undesirable wait for future users of ibnl_unicast. Change Portmapper calls originating from kernel to user-space to use ibnl_unicast_wait and take advantage of the wait/retry logic in netlink_unicast. Signed-off-by:
Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by:
Leon Romanovsky <leon@kernel.org>
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- 31 Jul, 2017 23 commits
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Sebastian Sanchez authored
Always initiate an offline transition request when a link down occurs. The firmware will use this request to confirm that the driver has seen the link down message. A host version is set to indicate this driver behavior to the firmware. Reviewed-by:
Dean Luick <dean.luick@intel.com> Signed-off-by:
Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Sebastian Sanchez authored
When link interrupts occur, multiple link down requests could be queued up when only one is needed. This could get the hfi1 out of sync with its link partner during LNI. Only allow one link down request to be queued at any one time. Reviewed-by:
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Sebastian Sanchez authored
Currently, link down interrupts queue link entries on a workqueue intended for sending events only. Create a workqueue for queuing link events. Reviewed-by:
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Mike Marciniszyn authored
The server side of qperf panics as follows: [242446.336860] IP: report_bug+0x64/0x10 [242446.341031] PGD 1c0c067 [242446.341032] P4D 1c0c067 [242446.343951] PUD 1c0d063 [242446.346870] PMD 8587ea067 [242446.349788] PTE 800000083e14016 [242446.352901] [242446.358352] Oops: 0003 [#1] SM [242446.437919] CPU: 1 PID: 7442 Comm: irq/92-hfi1_0 k Not tainted 4.12.0-mam-asm #1 [242446.446365] Hardware name: Intel Corporation S2600WT2/S2600WT2, BIOS SE5C610.86B.01.01.0018.C4.072020161249 07/20/201 [242446.458397] task: ffff8808392d2b80 task.stack: ffffc9000664000 [242446.465097] RIP: 0010:report_bug+0x64/0x10 [242446.469859] RSP: 0018:ffffc900066439c0 EFLAGS: 0001000 [242446.475784] RAX: ffffffffa06647e4 RBX: ffffffffa06461e1 RCX: 000000000000000 [242446.483840] RDX: 0000000000000907 RSI: ffffffffa0675040 RDI: ffffffffffff740 [242446.491897] RBP: ffffc900066439e0 R08: 0000000000000001 R09: 000000000000025 [242446.499953] R10: ffffffff81a253df R11: 0000000000000133 R12: ffffc90006643b3 [242446.508010] R13: ffffffffa065bbf0 R14: 00000000000001e5 R15: 000000000000000 [242446.516067] FS: 0000000000000000(0000) GS:ffff88085f640000(0000) knlGS:000000000000000 [242446.525191] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003 [242446.531698] CR2: ffffffffa06647ee CR3: 0000000001c09000 CR4: 00000000001406e [242446.539756] Call Trace [242446.542582] fixup_bug+0x2c/0x5 [242446.546277] do_trap+0x12b/0x18 [242446.549972] do_error_trap+0x89/0x11 [242446.554171] ? hfi1_copy_sge+0x271/0x2b0 [hfi1 [242446.559324] ? ttwu_do_wakeup+0x1e/0x14 [242446.563795] ? ttwu_do_activate+0x77/0x8 [242446.568363] do_invalid_op+0x20/0x3 [242446.572448] invalid_op+0x1e/0x3 [242446.576247] RIP: 0010:hfi1_copy_sge+0x271/0x2b0 [hfi1 [242446.582075] RSP: 0018:ffffc90006643be8 EFLAGS: 0001004 [242446.587999] RAX: 0000000000000000 RBX: ffff88083e0fa240 RCX: 000000000000000 [242446.596058] RDX: 0000000000000000 RSI: ffff880842508000 RDI: ffff88083e0fa24 [242446.604116] RBP: ffffc90006643c28 R08: 0000000000000000 R09: 000000000000000 [242446.612172] R10: ffffc90009473640 R11: 0000000000000133 R12: 000000000000000 [242446.620228] R13: 0000000000000000 R14: 0000000000002000 R15: ffff88084250800 [242446.628293] ? hfi1_copy_sge+0x1a1/0x2b0 [hfi1 [242446.633449] hfi1_rc_rcv+0x3da/0x1270 [hfi1 [242446.638312] ? sc_buffer_alloc+0x113/0x150 [hfi1 [242446.643662] hfi1_ib_rcv+0x1c9/0x2e0 [hfi1 [242446.648428] process_receive_ib+0x19a/0x270 [hfi1 [242446.653866] ? process_rcv_qp_work+0xd2/0x160 [hfi1 [242446.659505] handle_receive_interrupt_nodma_rtail+0x184/0x2e0 [hfi1 [242446.666693] ? irq_finalize_oneshot+0x100/0x10 [242446.671846] receive_context_thread+0x1b/0x140 [hfi1 [242446.677576] irq_thread_fn+0x1e/0x4 [242446.681659] irq_thread+0x13c/0x1b [242446.685646] ? irq_forced_thread_fn+0x60/0x6 [242446.690604] kthread+0x112/0x15 [242446.694298] ? irq_thread_check_affinity+0xe0/0xe [242446.699738] ? kthread_park+0x60/0x6 [242446.703919] ? do_syscall_64+0x67/0x15 [242446.708292] ret_from_fork+0x25/0x3 [242446.712374] Code: 63 78 04 44 0f b7 70 08 41 89 d0 4c 8d 2c 38 41 83 e0 01 f6 c2 02 74 17 66 45 85 c0 74 11 f6 c2 04 b9 01 00 00 00 75 bb 83 ca 04 <66> 89 50 0a 66 45 85 c0 74 52 0f b6 48 0b 41 0f b7 f6 4d 89 e0 [242446.733527] RIP: report_bug+0x64/0x100 RSP: ffffc900066439c [242446.739935] CR2: ffffffffa06647e [242446.743763] ---[ end trace 0e90a20d0aa494f7 ]-- The root cause is that the qib/hfi1 post receive call to rvt_lkey_ok() doesn't interpret the new return value from rvt_lkey_ok() properly leading to an mr reference count underrun. Additionally, remove an unused argument in rvt_sge_adjacent() aw well as an unneeded incr local in rvt_post_one_wr(). Fixes: Commit 14fe13fc ("IB/rdmavt: Compress adjacent SGEs in rvt_lkey_ok()") Signed-off-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
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Jan Sokolowski authored
The error messages when checksum validation of the platform configuration fields populated into the ASIC scratch registers fails are ambiguous. Disambiguate them. Reviewed-by:
Jakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by:
Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by:
Jan Sokolowski <jan.sokolowski@intel.com> Signed-off-by:
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Michael J. Ruhl authored
The allocate_ctxt() function adds the context to the fd data structure. Since the context is not completely initialized, this can cause confusion as to whether the context is valid or not. Move the fd reference from allocate_ctxt() to setup_base_ctxt(). Update the necessary functions to be aware of this move. Reviewed-by:
Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by:
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Jan Sokolowski authored
Fix issue where a disabled port can be enabled by inserting a cable. The port should be explicitly enabled instead. Reviewed-by:
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Alex Estrin authored
There is a window that allows other threads to read state of 'host_link_state' as a new, before the hardware actual state is set. This patch closes the window by indicating a new state only after hardware transition is complete. Reviewed-by:
Alex Estrin <alex.estrin@intel.com> Signed-off-by:
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Michael J. Ruhl authored
A copy_to_user() call assumes that two members of a data structure are sequential. Since this may not always be true, separate the copies to ensure a safe copy. Reviewed-by:
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Alex Estrin authored
There is a window where the FM can read the buffer control table and decide not to program buffers. When a port goes down, the code clears the table and if it is not programmed, posted SDMA descriptors will never complete due to no buffer credits. Reviewed-by:
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Bartlomiej Dudek authored
During PCIe initialization some registers' values from PCI config space are saved in order to restore them later (i.e. after reset). Restoring those value is done by a function called restore_pci_variables, while saving them is put directly into function hfi1_pcie_ddinit. Move saving values to a separate function in the image of restoring functionality. Reviewed-by:
Bartlomiej Dudek <bartlomiej.dudek@intel.com> Signed-off-by:
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Byczkowski, Jakub authored
Loading debug signed firmware fails if started immediately after failed attempt to load production firmware. A short delay is required so add about a 100us delay after RSA check failure. Reviewed-by:
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Jan Sokolowski authored
Code structure is not consistent for if/else blocks and break instructions in set_link_state for case HLS_UP_INIT. Physical state uses break in case of an error and if/else blocks for logical use cases. These blocks should be implemented consistently. Reviewed-by:
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Michael J. Ruhl authored
A trap should be sent to the FM until the FM sends a repress message. This is in line with the IBTA 13.4.9. Add the ability to resend traps until a repress message is received. Reviewed-by:
Michael N. Henry <michael.n.henry@intel.com> Signed-off-by:
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Michael J. Ruhl authored
The hfi1_rcvctrl() function receives an index which it then converts to an rcd. Since most functions have the rcd, use that instead. Reviewed-by:
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Michael J. Ruhl authored
The hfi1_<set|clear>_ctxt_<j|p>key functions take a context index and look up the context based on that index. Since the context index is being retrieved from the context, this doesn't seem optimal. Pass the context pointer for use, rather than the context index. Reviewed-by:
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Michael J. Ruhl authored
The array index for the rcd array is sized several different ways throughout the code. Use the user interface size (u16) as the standard size and update the necessary code to reflect this. u16 is large enough for the largest amount of supported contexts. Reviewed-by:
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Michael J. Ruhl authored
Several data members of the user context have become unused over time. Cleaning them up. Reviewed-by:
Ira Weiny <ira.weiny@intel.com> Reviewed-by:
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Michael J. Ruhl authored
In the error path for context allocation, the file descriptor pointer should not point to a context when an error occurs. Clean up the appropriate references on error. Fixes: Commit 62239fc6 ("IB/hfi1: Clean up on context initialization failure") Reviewed-by:
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Kaike Wan authored
When an egress resource(SDMA descriptors, pio credits) is not available, a sending thread will be put on the resource's wait queue. When the resource becomes available again, up to a fixed number of sending threads can be awakened sequentially and removed from the wait queue, depending on the number of waiting threads and the number of free resources. Since each awakened sending thread will send as many packets as possible, it is highly likely that the first sending thread will consume all the egress resources. Subsequently, it will be put back to the end of the wait queue. Depending on the timing when the later sending threads wake up, they may not be able to send any packet and be again put back to the end of the wait queue sequentially, right behind the first sending thread. This starvation cycle continues until some sending threads exceed their retry limit and consequently fail. This patch fixes the issue by two simple approaches: (1) Any starved sending thread will be put to the head of the wait queue while a served sending thread will be put to the tail; (2) The most starved sending thread will be served first. Reviewed-by:
Kaike Wan <kaike.wan@intel.com> Signed-off-by:
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Mike Marciniszyn authored
When the debugpat kernel boot flag is turned on the following traces are printed: [ 1884.793168] x86/PAT: Overlap at 0x90000000-0x92000000 [ 1884.803510] x86/PAT: reserve_memtype added [mem 0x91200000-0x9127ffff], track uncached-minus, req write-combining, ret uncached-minus [ 1884.818167] hfi1 0000:05:00.0: hfi1_0: WC Remapped RcvArray: ffffc9000a980000 The ioremap_wc() clearly is not returning a write combining mapping due to an overlap where the RcvArray is mapped in a uncached mapping prior to creating the proposed write combining mapping. The patch replaces the single base register for uncached CSRs that used to overlap the RcvArray with two mappings. One, kregbase1, from the bar0 up to the RcvArray and another, kregbase2, from the end of the RcvArray to the pio send buffer space. A new dd field, base2_start, is used to convert the zero-based offset in the CSR routines to the correct kregbase1/kregbase2 mapping. A single direct write of the RcvArray CSRs is replaced with hfi1_put_tid() to insure correct access using the new disjoint mapping. Additionally, the kregend field is deleted since it is only ever written. patdebug now shows the RcvArray as write combining: [ 35.688990] x86/PAT: reserve_memtype added [mem 0x91200000-0x9127ffff], track write-combining, req write-combining, ret write-combining To insulate from any potential issues with write combining, all writeq are now flushed in hfi1_put_tid() and rcv_array_wc_fill(). Reviewed-by:
Mitko Haralanov <mitko.haralanov@intel.com> Reviewed-by:
Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by:
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Bartlomiej Dudek authored
Ensure that return values from kernel PCI config access API calls in HFI driver are checked and react properly if they are not expected (i.e. not successful). Reviewed-by:
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Arnd Bergmann authored
I ran into this build error on linux-next: drivers/infiniband/hw/hns/hns_roce_eq.c:477:8: error: unknown type name 'irqreturn_t' static irqreturn_t hns_roce_msi_x_interrupt(int irq, void *eq_ptr) ^~~~~~~~~~~ drivers/infiniband/hw/hns/hns_roce_eq.c: In function 'hns_roce_msi_x_interrupt': drivers/infiniband/hw/hns/hns_roce_eq.c:485:9: error: implicit declaration of function 'IRQ_RETVAL'; did you mean 'BPF_RVAL'? [-Werror=implicit-function-declaration] return IRQ_RETVAL(int_work); I have bisected this to a seemingly unrelated change that happened to remove some indirect header inclusions. Simply including the required header explicitly fixes the build failure. Fixes: 09c75704 ("xfrm: remove flow cache") Signed-off-by:Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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- 28 Jul, 2017 1 commit
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Doug Ledford authored
The 0day build system flags implicit includes as errors. A patch from Matan Barak to allow hns_roce, an aarch64 specific RDMA driver, to be built on other arches, but it resulted in build regressions. The problem is that hns_roce_device.h needs a definition for __raw_writeq but did not have an include to provide it. Add <linux/io.h> as an include to resolve the issue. Signed-off-by:
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