- 19 Feb, 2017 40 commits
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Bart Van Assche authored
A quote from the IB spec: However, if the Consumer does not wait for the Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment leakage may occur. Therefore, it is good programming practice to tear down a QP that is associated with an SRQ by using the following process: * Put the QP in the Error State; * wait for the Affiliated Asynchronous Last WQE Reached Event; * either: * drain the CQ by invoking the Poll CQ verb and either wait for CQ to be empty or the number of Poll CQ operations has exceeded CQ capacity size; or * post another WR that completes on the same CQ and wait for this WR to return as a WC; * and then invoke a Destroy QP or Reset QP. Signed-off-by:
Bart Van Assche <bart.vanassche@sandisk.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Israel Rukshin <israelr@mellanox.com> Cc: Max Gurtovoy <maxg@mellanox.com> Cc: Laurence Oberman <loberman@redhat.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Bart Van Assche authored
Signed-off-by:
Bart Van Assche <bart.vanassche@sandisk.com> Cc: Steve Wise <swise@opengridcomputing.com> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Max Gurtovoy <maxg@mellanox.com> Reviewed-by:
Steve Wise <swise@opengridcomputing.com> Reviewed-by:
Leon Romanovsky <leonro@mellanox.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Bart Van Assche authored
Avoid that the following message is printed if login fails: scsi host0: ib_srp: Sending CM DREQ failed Signed-off-by:
Bart Van Assche <bart.vanassche@sandisk.com> Cc: Israel Rukshin <israelr@mellanox.com> Cc: Max Gurtovoy <maxg@mellanox.com> Cc: Laurence Oberman <loberman@redhat.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Bart Van Assche authored
Report the destination port GID if connecting fails. Signed-off-by:
Bart Van Assche <bart.vanassche@sandisk.com> Cc: Israel Rukshin <israelr@mellanox.com> Cc: Max Gurtovoy <maxg@mellanox.com> Cc: Laurence Oberman <loberman@redhat.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Bart Van Assche authored
Use lockdep_assert_held() statements to verify at run-time whether the proper locks are held. Signed-off-by:
Bart Van Assche <bart.vanassche@sandisk.com> Cc: Israel Rukshin <israelr@mellanox.com> Cc: Max Gurtovoy <maxg@mellanox.com> Cc: Laurence Oberman <loberman@redhat.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Bart Van Assche authored
Avoid that srp_process_rsp() overwrites the status information in ch if the SRP target response timed out and processing of another task management function has already started. Avoid that issuing multiple task management functions concurrently triggers list corruption. This patch prevents that the following stack trace appears in the system log: WARNING: CPU: 8 PID: 9269 at lib/list_debug.c:52 __list_del_entry_valid+0xbc/0xc0 list_del corruption. prev->next should be ffffc90004bb7b00, but was ffff8804052ecc68 CPU: 8 PID: 9269 Comm: sg_reset Tainted: G W 4.10.0-rc7-dbg+ #3 Call Trace: dump_stack+0x68/0x93 __warn+0xc6/0xe0 warn_slowpath_fmt+0x4a/0x50 __list_del_entry_valid+0xbc/0xc0 wait_for_completion_timeout+0x12e/0x170 srp_send_tsk_mgmt+0x1ef/0x2d0 [ib_srp] srp_reset_device+0x5b/0x110 [ib_srp] scsi_ioctl_reset+0x1c7/0x290 scsi_ioctl+0x12a/0x420 sd_ioctl+0x9d/0x100 blkdev_ioctl+0x51e/0x9f0 block_ioctl+0x38/0x40 do_vfs_ioctl+0x8f/0x700 SyS_ioctl+0x3c/0x70 entry_SYSCALL_64_fastpath+0x18/0xad Signed-off-by:
Bart Van Assche <bart.vanassche@sandisk.com> Cc: Israel Rukshin <israelr@mellanox.com> Cc: Max Gurtovoy <maxg@mellanox.com> Cc: Laurence Oberman <loberman@redhat.com> Cc: Steve Feeley <Steve.Feeley@sandisk.com> Cc: <stable@vger.kernel.org> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Bart Van Assche authored
After srp_process_rsp() returns there is a short time during which the scsi_host_find_tag() call will return a pointer to the SCSI command that is being completed. If during that time a duplicate response is received, avoid that the following call stack appears: BUG: unable to handle kernel NULL pointer dereference at (null) IP: srp_recv_done+0x450/0x6b0 [ib_srp] Oops: 0000 [#1] SMP CPU: 10 PID: 0 Comm: swapper/10 Not tainted 4.10.0-rc7-dbg+ #1 Call Trace: <IRQ> __ib_process_cq+0x4b/0xd0 [ib_core] ib_poll_handler+0x1d/0x70 [ib_core] irq_poll_softirq+0xba/0x120 __do_softirq+0xba/0x4c0 irq_exit+0xbe/0xd0 smp_apic_timer_interrupt+0x38/0x50 apic_timer_interrupt+0x90/0xa0 </IRQ> RIP: srp_recv_done+0x450/0x6b0 [ib_srp] RSP: ffff88046f483e20 Signed-off-by:
Bart Van Assche <bart.vanassche@sandisk.com> Cc: Israel Rukshin <israelr@mellanox.com> Cc: Max Gurtovoy <maxg@mellanox.com> Cc: Laurence Oberman <loberman@redhat.com> Cc: Steve Feeley <Steve.Feeley@sandisk.com> Cc: <stable@vger.kernel.org> Reviewed-by:
Leon Romanovsky <leonro@mellanox.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Bart Van Assche authored
Tests have shown that the following error message is reported when using SG-GAPS registration with an mlx5 adapter: scsi host1: ib_srp: failed RECV status WR flushed (5) for CQE ffff880bd4270eb0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0f007806 2500002a ad9fafd1 scsi host1: ib_srp: reconnect succeeded mlx5_0:dump_cqe:262:(pid 7369): dump error cqe 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0f007806 25000032 00105dd0 scsi host1: ib_srp: failed FAST REG status memory management operation error (6) for CQE ffff880b92860138 Hence avoid using SG-GAPS memory registrations. Additionally, always configure the blk_queue_virt_boundary() to avoid to trigger a mapping failure when using adapters that support SG-GAPS (e.g. mlx5). Fixes: commit ad8e66b4 ("IB/srp: fix mr allocation when the device supports sg gaps") Fixes: commit 509c5f33 ("IB/srp: Prevent mapping failures") Reported-by:
Laurence Oberman <loberman@redhat.com> Signed-off-by:
Bart Van Assche <bart.vanassche@sandisk.com> Cc: Israel Rukshin <israelr@mellanox.com> Cc: Max Gurtovoy <maxg@mellanox.com> Cc: Leon Romanovsky <leonro@mellanox.com> Cc: Mark Bloch <markb@mellanox.com> Cc: Yuval Shaia <yuval.shaia@oracle.com> Cc: <stable@vger.kernel.org> # 4.7+ Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Christophe Jaillet authored
'qedr_alloc_pbl_tbl()' can not return NULL. In qedr_init_user_queue(): - simplify the test for the return value, no need to test for NULL - propagate the error pointer if needed, otherwise 0 (success) is returned. This is spurious. In init_mr_info(): - test the return value with IS_ERR - propagate the error pointer if needed instead of an exlictit -ENOMEM. This is a no-op as the only error pointer that we can have here is already -ENOMEM Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by:
Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Arnd Bergmann authored
When CONFIG_DCB is disabled, we get a link error: drivers/infiniband/built-in.o: In function `bnxt_re_setup_qos': trace.c:(.text+0x155774): undefined reference to `dcb_ieee_getapp_mask' trace.c:(.text+0x155774): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `dcb_ieee_getapp_mask' trace.c:(.text+0x155794): undefined reference to `dcb_ieee_getapp_mask' trace.c:(.text+0x155794): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `dcb_ieee_getapp_mask' Like the other drivers that use this function, a Kconfig dependency is the correct fix. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Arnd Bergmann authored
I ran into a build error on arm64 randconfig testing: infiniband/hw/hns/hns_roce_main.c:539:1: error: data definition has no type or storage class [-Werror] infiniband/hw/hns/hns_roce_main.c:539:1: error: type defaults to 'int' in declaration of 'MODULE_DEVICE_TABLE' [-Werror=implicit-int] infiniband/hw/hns/hns_roce_main.c:539:1: error: parameter names (without types) in function declaration [-Werror] infiniband/hw/hns/hns_roce_main.c:979:226: error: data definition has no type or storage class [-Werror] infiniband/hw/hns/hns_roce_main.c:979:226: error: type defaults to 'int' in declaration of 'module_init' [-Werror=implicit-int] infiniband/hw/hns/hns_roce_main.c:979:1: error: parameter names (without types) in function declaration [-Werror] Including the module.h makes it build again. Fixes: 9a443537 ("IB/hns: Add driver files for hns RoCE driver") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Yuval Shaia authored
Signed-off-by:
Yuval Shaia <yuval.shaia@oracle.com> Acked-by:
Adit Ranadive <aditr@vmware.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Christoph Hellwig authored
.. and greatly clean up the irq handling boilerplate code. Signed-off-by:
Christoph Hellwig <hch@lst.de> Acked-by:
Adit Ranadive <aditr@vmware.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Arnd Bergmann authored
gcc-7 produces a mysterious warning about the size argument being potentially out of range: drivers/infiniband/hw/hfi1/verbs.c: In function 'init_cntr_names': drivers/infiniband/hw/hfi1/verbs.c:1644:2: error: 'memcpy': specified size between 18446744071562067968 and 18446744073709551615 exceeds maximum object size 9223372036854775807 [-Werror=stringop-overflow=] This seems to refer to a the case where an 64-bit size_t gets truncated into a negative 'int' and subsequently turned into a high 64-bit number again. The fix is clearly to use size_t here, which matches the type that gets used for this value elsewhere. Fixes: b7481944 ("IB/hfi1: Show statistics counters under IB stats interface") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Reviewed-by:
Leon Romanovsky <leonro@mellanox.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Zhu Yanjun authored
There are 2 labels to mark the same statements. Replace the 2 labels with one versatile labe. Cc: Joe Jin <joe.jin@oracle.com> Cc: Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by:
Zhu Yanjun <yanjun.zhu@oracle.com> Reviewed-by:
Leon Romanovsky <leonro@mellanox.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Zhu Yanjun authored
In the function ipoib_cm_nonsrq_init_rx, the memory is not allocated successfully. It is not necessary to free it. CC: Joe Jin <joe.jin@oracle.com> CC: Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by:
Zhu Yanjun <yanjun.zhu@oracle.com> Reviewed-by:
Leon Romanovsky <leonro@mellanox.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Christoph Hellwig authored
Trivial switch to the new API for this driver. Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Michael J. Ruhl authored
Update several usages of kmalloc/user_copy to memdup_copy and memdup_copy_nul. Reviewed-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Don Hiatt authored
Rename RVT AETH defines and export in rdma/ib_hdrs.h Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
Don Hiatt <don.hiatt@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Don Hiatt authored
Return usec from an index into ib_rvt_rnr_table. Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
Don Hiatt <don.hiatt@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Michael J. Ruhl authored
If the DC is in shutdown state, the set link state function will return an error. Since this is not a failure in this state, make sure to only call set link state if the DC is on. Reviewed-by:
Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by:
Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Jakub Byczkowski authored
Use rate-limit state to limit number of messages logged to kernel message buffer for DCC errors. Add new macro dd_dev_info_ratelimited for that propose. Replace all dd_dev_info calls in handle_dcc_err function with rate-limited version. Reviewed-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Jakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Mike Marciniszyn authored
The send complete for RC QPs mismanages the ack count when the responder side is only in RTR. A QP in that state cannot send requests, but it can be the target for operations that elicit responses. Adjust the RC completion logic to correct the count maintenance by reflecting RECV_OK in a new state test. Reviewed-by:
Kaike Wan <kaike.wan@intel.com> Signed-off-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Brian Welty authored
Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
Brian Welty <brian.welty@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Brian Welty authored
To improve code reuse, add small SGE state helper routines to rdmavt_mr.h. Leverage these in hfi1, including refactoring of hfi1_copy_sge. Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
Brian Welty <brian.welty@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Brian Welty authored
Convert copy_sge and related SGE state functions to use boolean. For determining if QP is in user mode, add helper function in rdmavt_qp.h. This is used to determine if QP needs the last byte ordering. While here, change rvt_pd.user to a boolean. Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by:
Dean Luick <dean.luick@intel.com> Signed-off-by:
Brian Welty <brian.welty@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Venkata Sandeep Dhanalakota authored
Reduce qib code footprint by using the rdmavt timers. Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by:
Brian Welty <brian.welty@intel.com> Signed-off-by:
Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Venkata Sandeep Dhanalakota authored
Reduce hfi1 code footprint by using the rdmavt timers. Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by:
Brian Welty <brian.welty@intel.com> Signed-off-by:
Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Venkata Sandeep Dhanalakota authored
To move common code across target to rdmavt for code reuse. Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by:
Brian Welty <brian.welty@intel.com> Signed-off-by:
Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Brian Welty authored
Add rvt_compute_aeth() and rvt_get_credit() as shared functions in rdmavt, moved from hfi1/qib logic. Reviewed-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Brian Welty <brian.welty@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Brian Welty authored
Add rvt_rc_error() and rvt_comm_est() as shared functions in rdmavt, moved from hfi1/qib logic. Reviewed-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Brian Welty <brian.welty@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
The EFI variable that provides board ID is named by the PCI address of the device, which is published in upper-case, while the HFI1 driver reads the EFI variable in lower-case. This prevents returning the correct board id when queried through sysfs. Read EFI variables in upper-case if the lower-case read fails. Reviewed-by:
Easwar Hariharan <easwar.hariharan@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
Some fields in struct hfi1_packet are oversized. Reduce them. Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@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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Mike Marciniszyn authored
The r_psn and s_rnr_retry are missing. Add with this patch. Reviewed-by:
Kaike Wan <kaike.wan@intel.com> Signed-off-by:
Mike Marciniszyn <mike.marciniszyn@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
There are some memory allocation calls in hfi1_create_ctxtdata() that do not use the numa function parameter. This can cause cache lines to be filled over QPI. Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@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
Having per-CPU reference count for each MR prevents cache-line bouncing across the system. Thus, it prevents bottlenecks. Use per-CPU reference counts per MR. The per-CPU reference count for FMRs is used in atomic mode to allow accurate testing of the busy state. Other MR types run in per-CPU mode MR until they're freed. Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by:
Mike Marciniszyn <mike.marciniszyn@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
Receive code paths use the QP's device and port number to access the struct hfi1_ibport. When an instance of struct hfi1_ctxtdata is present, it can be used to access struct hfi1_ibport through a pointer. This makes struct hfi1_ibport lookup time faster as an array doesn't have to be indexed and access fields in other cache-lines. Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@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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Mike Marciniszyn authored
The resource specific wait locking missed correcting the lock for the notify_error_qp() calldown. The code is fixed to correctly use the iowait lock field to protect the head that is protected by that lock. Fixes: Commit 4e045572 ("IB/hfi1: Add unique txwait_lock for txreq events") Reviewed-by:
Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Easwar Hariharan authored
After extended testing, it was found that the previous PCIe Gen 3 recipe, which used adaptive CTLE with Preset 4, could cause an NMI/Surprise Link Down in about 1 in 100 to 1 in 1000 power cycles on some platforms. New EV data combined with extensive empirical data indicates that the new recipe should use static CTLE with Preset 6 for all integrated silicon SKUs. Fixes: c3f8de0b ("IB/hfi1: Add static PCIe Gen3 CTLE tuning") Reviewed-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Mike Marciniszyn authored
The read of s_head in the hfi1_make_rc_req() and qib_make_rc_req() lack the necesary barrier instuctions. Correct other ACCESS_ONCE() warnings in the same file. Reviewed-by:
Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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