- 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:
Leon Romanovsky <leonro@mellanox.com> Signed-off-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 6 commits
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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: -
kbuild test robot authored
drivers/infiniband/hw/hns/hns_roce_eq.c:295:3-4: Unneeded semicolon Remove unneeded semicolon. Generated by: scripts/coccinelle/misc/semicolon.cocci Fixes: 7d1b6a678e0b ("IB/hns: Support compile test for hns RoCE driver") CC: Matan Barak <matanb@mellanox.com> Signed-off-by:Fengguang Wu <fengguang.wu@intel.com> Signed-off-by:
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kbuild test robot authored
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:2026:5-8: Unneeded variable: "ret". Return "0" on line 2046 Remove unneeded variable used to store return value. Generated by: scripts/coccinelle/misc/returnvar.cocci Fixes: 7d1b6a678e0b ("IB/hns: Support compile test for hns RoCE driver") CC: Matan Barak <matanb@mellanox.com> Signed-off-by: -
kbuild test robot authored
drivers/infiniband/hw/hns/hns_roce_qp.c:802:9-10: WARNING: return of 0/1 in function 'hns_roce_wq_overflow' with return type bool Return statements in functions returning bool should use true/false instead of 1/0. Generated by: scripts/coccinelle/misc/boolreturn.cocci Fixes: 7d1b6a678e0b ("IB/hns: Support compile test for hns RoCE driver") CC: Matan Barak <matanb@mellanox.com> Signed-off-by: -
Matan Barak authored
Compiling the hns RoCE driver requires ARM architecture. In order to simplify development of IB/core, support compile test. Add the necessary includes for that too. Signed-off-by:
Matan Barak <matanb@mellanox.com> Signed-off-by:
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Doug Ledford authored
The initial patch for changing the stack to use RoCEv2 GIDs by default set the CMA_PREFERRED_ROCE_GID_TYPE to an incorrect value. Instead of an absolute value, we needed to set the right bit in a bitmask. Correct the default setting so we use RoCEv2 by default. Fixes: 63a5f483 (IB/cma: Set default gid type to RoCEv2) Signed-off-by:
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- 27 Jul, 2017 4 commits
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Doug Ledford authored
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Amrani, Ram authored
The number of supported WIDs, if they are supported at all, can be limited due to resources. Notifying the user space application the number of available WIDs allows it to utilize them correctly. Signed-off-by:
Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by:
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Amrani, Ram authored
Direct Packet Mode support may be disabled, e.g, due to limited resources. Notifying the user application prevents wasting cycles on attempting to send these kind of packets. Signed-off-by:
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Doug Ledford authored
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- 24 Jul, 2017 7 commits
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Colin Ian King authored
Trivial fix to spelling mistake in mlx5_ib_dbg message Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Kaike Wan authored
This patch adds qp->s_ack_queue indices and size to qp_stats printout. This information will provide information about the receiving side. Reviewed-by:
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Guy Levi authored
As a final step to support RSS feature, expose the RSS capabilities in query device verb. It includes: - Max rwq indirection tables. - Max rwq indirection table size. - Supported qp types. Signed-off-by:
Guy Levi <guyle@mellanox.com> Reviewed-by:
Yishai Hadas <yishaih@mellanox.com> Signed-off-by:
Leon Romanovsky <leon@kernel.org> Signed-off-by:
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Guy Levi authored
Add support to work with a RSS QP by using an indirection table object upon QP creation. Other related QP verbs (e.g. modify/destroy/query) were updated as well for that QP mode. Notes: - The RX hash properties are supplied as driver private data. - The RSS QP port is used on the associated WQs in its indirection table. Applying different ports during WQ life time is not allowed. - The expected RSS QP flow is: create, modify(RST->INIT), modify(RST->RTR), destroy. Signed-off-by:
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Guy Levi authored
To enable RSS functionality the IB indirection table object (i.e. ib_rwq_ind_table) should be used. This patch implements the related verbs as of create and destroy an indirection table. In downstream patches the indirection table will be used as part of RSS QP creation. Signed-off-by:
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Guy Levi authored
Support create/modify/destroy WQ related verbs. The base IB object to enable RSS functionality is a WQ (i.e. ib_wq). This patch implements the related WQ verbs as of create, modify and destroy. In downstream patches the WQ will be used as part of an indirection table (i.e. ib_rwq_ind_table) to enable RSS QP creation. Notes: ConnectX-3 hardware requires consecutive WQNs list as receive descriptor queues for the RSS QP. Hence, the driver manages consecutive ranges lists per context which the user must respect. Destroying the WQ does not return its WQN back to its range for reusing. However, destroying all WQs from the same range releases the range and in turn releases its WQNs for reusing. Since the WQ object is not a natural object in the hardware, the driver implements the WQ by the hardware QP. As such, the WQ inherits its port from its RSS QP parent upon its RST->INIT transition and by that time its state is applied to the hardware. Signed-off-by:
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Moshe Shemesh authored
Adding visibility of resource usage of QPs, CQs and counters used by virtual functions. This feature will be used to give the PF administrator more data while debugging VF status. Usage info was added to ALLOC_RES command, to notify the PF if the resource which is being reserved or allocated for the VF will be used by kernel driver or by user verbs. Updated reservation and allocation functions of QP, CQ and counter with additional usage parameter. Signed-off-by:
Moshe Shemesh <moshe@mellanox.com> Signed-off-by:
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