- 02 2月, 2018 2 次提交
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由 Kamenee Arumugam 提交于
HFI's counters SendWaitCnt and SendWaitVlCnt are in units of TXE cycle time (at 805MHz). OPA counters PortXmitWait and PortVLXmtWait are in units of flit times. Convert the counter values to flit units using following conversion formula: PortXmitWait = SendWaitCnt * 2 * (4 /link_width) * (25 Gbps /link_speed) PortVLXmitWait = SendWaitVLCnt * 2 * (4 /link_width) * (25 Gbps /link_speed) At link up or downgrade events, the link width can change. To ensure accurate counter calculations, sample the counters after the events, during counter requests, and then aggregate the OPA counters. Reviewed-by: NMichael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: NKamenee Arumugam <kamenee.arumugam@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>
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由 Michael J. Ruhl 提交于
The pci_request_irq() interfaces always adds the IRQF_SHARED bit to all IRQ requests. When the kernel is built with CONFIG_DEBUG_SHIRQ config flag, if the IRQF_SHARED bit is set, a call to the IRQ handler is made from the __free_irq() function. This is testing a race condition between the IRQ cleanup and an IRQ racing the cleanup. The HFI driver should be able to handle this race, but does not. This race can cause traces that start with this footprint: BUG: unable to handle kernel NULL pointer dereference at (null) Call Trace: <hfi1 irq handler> ... __free_irq+0x1b3/0x2d0 free_irq+0x35/0x70 pci_free_irq+0x1c/0x30 clean_up_interrupts+0x53/0xf0 [hfi1] hfi1_start_cleanup+0x122/0x190 [hfi1] postinit_cleanup+0x1d/0x280 [hfi1] remove_one+0x233/0x250 [hfi1] pci_device_remove+0x39/0xc0 Export IRQ cleanup function so it can be called from other modules. Using the exported cleanup function: Re-order the driver cleanup code to clean up IRQ resources before other resources, eliminating the race. Re-order error path for init so that the race does not occur. Reduce severity on spurious error message for SDMA IRQs to info. Reviewed-by: NAlex Estrin <alex.estrin@intel.com> Reviewed-by: NPatel Jay P <jay.p.patel@intel.com> Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: NMichael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>
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- 06 1月, 2018 2 次提交
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由 Michael J. Ruhl 提交于
The get_unit_name() function crafts a string based on the device name and the device unit number. It then stores this in a static variable. This has concurrency issues as can be seen with this log: hfi1 0000:02:00.0: hfi1_1: read_idle_message: read idle message 0x203 hfi1 0000:01:00.0: hfi1_1: read_idle_message: read idle message 0x203 The PCI device ID (0000:02:00.0 vs. 0000:01:00.0) is correct for the message, but the device string hfi1_1 is incorrect (it should be hfi1_0 for the second log message). Remove get_unit_name() function. Instead, use the rvt accessor rvt_get_ibdev_name() to get the IB name string. Clean up any hfi1_early_xx calls that can now use the new path. QIB has the same (qib_get_unit_name()) issue. Updating as necessary. Remove qib_get_unit_name() function. Update log message that has redundant device name. Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: NMichael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Sebastian Sanchez 提交于
When an 8051 command times out, the entire DC block is restarted. During the restart, the host interface version bit is set, which calls do_8051_command() recursively. The host version bit needs to be set before the link moves into polling, so the host version bit can be set in set_local_link_attributes() instead. Thus, the 8051 command functions can be simplied as a non-locking version (dd->dc8051_lock) of those functions are no longer needed. Fixes: 9be6a5d7 ("IB/hfi1: Prevent LNI out of sync by resetting host interface version") Reviewed-by: NMichael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: NSebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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- 14 11月, 2017 3 次提交
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由 Jan Sokolowski 提交于
On host shutdown, driver sends 'SMA_Disabled' as a reason for link down. This is incorrect. Send 'reboot' as a linkdown reason. Signed-off-by: NJan Sokolowski <jan.sokolowski@intel.com> Reviewed-by: NJakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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OPA VNIC does not use PIO contexts and instead only uses SDMA engines. Do not allocate PIO contexts for VNIC ports. Reviewed-by: NMichael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: NNiranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Jan Sokolowski 提交于
HFI's are hard-wired to send Device Info frames with MgmtAllowed bit set to 0. This means in B2B setups, MgmtAllowed would never be allowed, which prevents remote opa management tools from working properly. Assume MgmtAllowed if a neighbor is also an HFI. Fixes: 98b9ee20 ("IB/hfi1: Cache neighbor secure data after link up") Reviewed-by: NSebastian Sanchez <sebastian.sanchez@intel.com> Reviewed-by: NMichael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: NJan Sokolowski <jan.sokolowski@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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- 31 10月, 2017 4 次提交
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由 Kamenee Arumugam 提交于
The driver parameter num_user_contexts controls global behavior and should not be modified by the driver. This patch eliminates modification of num_user_contexts by using a local variable to keep track of the value. Reviewed-by: NMichael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: NKamenee Arumugam <kamenee.arumugam@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Mike Marciniszyn 提交于
The only use for the urg interrupt is for priority PSM packets. There is no reason for this interrupt to be enabled for kernel contexts. Reviewed-by: NKaike Wan <kaike.wan@intel.com> Signed-off-by: NMike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Patel Jay P 提交于
__subn_get_opa_portinfo stores value returned by hfi1_get_ib_cfg() as operational vls. hfi1_get_ib_cfg() returns vls_operational field in hfi1_pportdata. The problem with this is that the value is always equal to vls_supported field in hfi1_pportdata. The logic to calculate operational_vls is to set value passed by FM (in __subn_set_opa_portinfo routine). If no value is passed then default value is stored in operational_vls. Field actual_vls_operational is calculated on the basis of buffer control table. Hence, modifying hfi1_get_ib_cfg() to return actual_operational_vls when used with HFI1_IB_CFG_OP_VLS parameter Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NPatel Jay P <jay.p.patel@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Michael J. Ruhl 提交于
The handler for link init state (HLS_UP_INIT) notifies userspace (update_statusp()) before enabling the device (RCV_CTRL_RCV_PORT_ENABLE_SMASK) or setting the device state (ppd->host_link_state). This causes a race condition where the userspace thinks the interface is in the INIT state before the driver has set that state. Rework the code path to eliminate the race. Delay setting the init state until after a HW settling period. Reviewed-by: NSebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: NMichael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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- 18 10月, 2017 2 次提交
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由 Kees Cook 提交于
In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Switches test of .data field to .function, since .data will be going away. Cc: Mike Marciniszyn <mike.marciniszyn@intel.com> Cc: Dennis Dalessandro <dennis.dalessandro@intel.com> Cc: Doug Ledford <dledford@redhat.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: linux-rdma@vger.kernel.org Signed-off-by: NKees Cook <keescook@chromium.org> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Jan Sokolowski 提交于
Change serdes mode setting to use MISC_CONFIG_BITS in VERIFY_CAP_LOCAL_LINK_WIDTH register. This method of setting up serdes loopback is universally compatible across all firmware versions. Reviewed-by: NJakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by: NJan Sokolowski <jan.sokolowski@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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- 05 10月, 2017 3 次提交
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由 Sebastian Sanchez 提交于
The s_ahgpsn was incorrectly placed in the read-mostly section of the QP and the s_curr_size and s_hdrwords are oversized. The misplaced s_ahgpsn will cause the read-mostly cachelines to thrash. Place s_ahgpsn in the send side cache lines and correctly size and s_hdrwords and s_cur_size to keep the send side cachelines at the same size. Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: NSebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Sebastian Sanchez 提交于
When the link is disabled and re-enabled, the host version bit is not set again, so the firmware behaves as though it’s interacting with an old driver. This causes LNI to get out of sync. The host version bit needs to be set at load_8051_firmware() and _dc_start(). Currently, it's only set at load_8051_firmware(). Create a common function to set the bit with the intent to make the code more maintainable in the future, set the host version bit at _dc_start() and modify the 8051 command API to prevent a deadlock as _dc_start() is already holding the dc8051 lock. Fixes: 913cc671 ("IB/hfi1: Always perform offline transition") Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: NSebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Michael J. Ruhl 提交于
The addition of the VNIC contexts to num_rcv_contexts changes the meaning of the sysfs value nctxts from available user contexts, to user contexts + reserved VNIC contexts. User applications that use nctxts are now broken. Update the calculation so that VNIC contexts are used only if there are hardware contexts available, and do not silently affect nctxts. Update code to use the calculated VNIC context number. Update the sysfs value nctxts to be available user contexts only. Fixes: 2280740f ("IB/hfi1: Virtual Network Interface Controller (VNIC) HW support") Reviewed-by: NIra Weiny <ira.weiny@intel.com> Reviewed-by: NNiranjana Vishwanathapura <Niranjana.Vishwanathapura@intel.com> Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com> Cc: <Stable@vger.kernel.org> #v4.12+ Signed-off-by: NMichael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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- 27 9月, 2017 7 次提交
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由 Michael J. Ruhl 提交于
hfi1_rcd_get_by_index assumes that the given index is in the correct range. In most cases this is correct because the index is bounded by a loop. For these cases, adding a range check to the function is redundant. For the use case that is not bounded by the loop range, a _safe wrapper function is needed to validate the index before accessing the rcd array. Add a _safe wrapper to _get_by_index to validate the index range. Update appropriate call sites with the new _safe function. Reviewed-by: NIra Weiny <ira.weiny@intel.com> Signed-off-by: NMichael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Ira Weiny 提交于
devdata->link_default is no longer variable Maintain number of holes by moving dc_shutdown Reviewed-by: NSebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: NIra Weiny <ira.weiny@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Michael J. Ruhl 提交于
The HFI PCI IRQ code uses an obsolete PCI API. Update the code to use the new PCI IRQ API and any necessary changes because of the new API. Reviewed-by: NSebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: NMichael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Jakub Byczkowski 提交于
Add state decodes for link width negotiation, verify cap time out and secure data resolution failures. Reviewed-by: NJan Sokolowski <jan.sokolowski@intel.com> Reviewed-by: NIra Weiny <ira.weiny@intel.com> Signed-off-by: NJakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Kamenee Arumugam 提交于
The general interrupt handler returns IRQ_HANDLED whether an IRQ was handled or not. Determine if an IRQ was handled and return the correct value. Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: NMichael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: NKamenee Arumugam <kamenee.arumugam@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Sebastian Sanchez 提交于
QSFP reset enables AOC transmitters by default. They should be off before moving to high power mode to complete the setup. There is no need to reset the QSFP during LNI failure as it was reset at link down. Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: NJakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by: NSebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Sebastian Sanchez 提交于
Offline.quietDuration was added in the 8051 firmware, and the driver only turns off the AOC transmitters when offline.quiet is reached. However, the AOC transmitters need to be turned off at the new state. Therefore, turn off the AOC transmitters at any offline substates including offline.quiet and offline.quietDuration, then recheck we reached offline.quiet to support backwards compatibility. Reviewed-by: NJakub Byczkowski <jakub.byczkowski@intel.com> Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: NSebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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- 29 8月, 2017 1 次提交
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由 Grzegorz Morys 提交于
Ratelimit error prints from sdma_interrupt function that could swarm dmesg otherwise. Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NGrzegorz Morys <grzegorz.morys@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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- 23 8月, 2017 7 次提交
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由 Jakub Byczkowski 提交于
Do not track physical state separately from host_link_state. Deduce physical state from host_link_state when required. Change cache_physical_state to log_physical_state to make sure host_link_state reflects hardwares physical state properly. Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: NIra Weiny <ira.weiny@intel.com> Signed-off-by: NJakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Sebastian Sanchez 提交于
Check xchg returned value for queuing link down entry to guarantee proper atomic value reads. Fixes: 626c077c ("IB/hfi1: Prevent link down request double queuing") Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: NSebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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Increase lid used in hfi1 driver to 32 bits. qib continues to use 16 bit lids. Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: NDon Hiatt <don.hiatt@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Don Hiatt 提交于
We introduce a struct hfi1_16b_header to support 16B headers. 16B bypass packets are received by the driver and processed similar to 9B packets. Add basic support to handle 16B packets. Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDon Hiatt <don.hiatt@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Michael J. Ruhl 提交于
There is a mixture of mutex and spinlocks to protect receive context (rcd/uctxt) information. This is not used consistently. Use the mutex to protect device receive context information only. Use the spinlock to protect sub context information only. Protect access to items in the rcd array with a spinlock and reference count. Remove spinlock around dd->rcd array cleanup. Since interrupts are disabled and cleaned up before this point, this lock is not useful. Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: NSebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: NMichael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Michael J. Ruhl 提交于
The rcd array can be accessed from user context or during interrupts. Protecting this with a mutex isn't a good idea because the mutex should not be used from an IRQ. Protect the allocation and freeing of rcd array elements with a spinlock. Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: NSebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: NMichael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Byczkowski, Jakub 提交于
Do not track logical state separately from host_link_state. Deduce logical state from host_link_state when required. Transitions in set_link_state and goto_offline already make sure host_link_state reflects hardware's logical state properly. Reviewed-by: NIra Weiny <ira.weiny@intel.com> Signed-off-by: NJakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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- 18 8月, 2017 1 次提交
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由 Colin Ian King 提交于
Trivial fix to spelling mistake, rename variable 'continious' to the correct spelling 'continuous' Signed-off-by: NColin Ian King <colin.king@canonical.com> Acked-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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- 01 8月, 2017 8 次提交
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由 Sebastian Sanchez 提交于
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: NDean Luick <dean.luick@intel.com> Signed-off-by: NSebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Sebastian Sanchez 提交于
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: NDean Luick <dean.luick@intel.com> Signed-off-by: NSebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Sebastian Sanchez 提交于
Currently, link down interrupts queue link entries on a workqueue intended for sending events only. Create a workqueue for queuing link events. Reviewed-by: NDean Luick <dean.luick@intel.com> Signed-off-by: NSebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: NLeon Romanovsky <leonro@mellanox.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Jan Sokolowski 提交于
Fix issue where a disabled port can be enabled by inserting a cable. The port should be explicitly enabled instead. Reviewed-by: NMichael J. Ruhl <michael.j.ruhl@intel.com> Reviewed-by: NJakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by: NJan Sokolowski <jan.sokolowski@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Alex Estrin 提交于
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: NMike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: NAlex Estrin <alex.estrin@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Alex Estrin 提交于
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: NMike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: NAlex Estrin <alex.estrin@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Bartlomiej Dudek 提交于
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: NJakub Byczkowski <jakub.byczkowski@intel.com> Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: NBartlomiej Dudek <bartlomiej.dudek@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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由 Jan Sokolowski 提交于
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: NJakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by: NJan Sokolowski <jan.sokolowski@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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