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linux-uconsole/drivers/infiniband/hw/hfi1
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Kaike Wan ce8e8087cf IB/hfi1: TID RDMA WRITE should not return IB_WC_RNR_RETRY_EXC_ERR 
Normal RDMA WRITE request never returns IB_WC_RNR_RETRY_EXC_ERR to ULPs
because it does not need post receive buffer on the responder side.
Consequently, as an enhancement to normal RDMA WRITE request inside the
hfi1 driver, TID RDMA WRITE request should not return such an error status
to ULPs, although it does receive RNR NAKs from the responder when TID
resources are not available. This behavior is violated when
qp->s_rnr_retry_cnt is set in current hfi1 implementation.

This patch enforces these semantics by avoiding any reaction to the updates
of the RNR QP attributes.

Fixes: 3c6cb20a0d ("IB/hfi1: Add TID RDMA WRITE functionality into RDMA verbs")
Link: https://lore.kernel.org/r/20191025195842.106825.71532.stgit@awfm-01.aw.intel.com
Cc: <stable@vger.kernel.org>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-11-06 13:15:36 -04:00
..
affinity.c sched/core: Provide a pointer to the valid CPU mask 2019-06-03 11:49:37 +02:00
affinity.h IB/{hfi1, rdmavt, qib}: Implement CQ completion vector support 2018-05-09 15:53:30 -04:00
aspm.c IB/hfi1: Reduce excessive aspm inlines 2019-06-28 22:34:26 -03:00
aspm.h IB/hfi1: Reduce excessive aspm inlines 2019-06-28 22:34:26 -03:00
chip.c IB/{rdmavt, hfi1, qib}: Add a counter for credit waits 2019-09-13 16:59:55 -03:00
chip.h IB/{rdmavt, hfi1, qib}: Add a counter for credit waits 2019-09-13 16:59:55 -03:00
chip_registers.h IB/hfi1: Add selected Rcv counters 2019-04-24 11:48:10 -03:00
common.h IB/hfi1: Remove reference to RHF.VCRCErr 2019-04-24 11:48:11 -03:00
debugfs.c IB/hfi1: No need to use try_module_get for debugfs 2019-06-28 22:34:26 -03:00
debugfs.h infiniband: hfi1: drop crazy DEBUGFS_SEQ_FILE_CREATE() macro 2019-01-24 09:22:29 -07:00
device.c
device.h
driver.c IB/hfi1: Remove reference to RHF.VCRCErr 2019-04-24 11:48:11 -03:00
efivar.c
efivar.h
eprom.c
eprom.h
exp_rcv.c IB/hfi1: Remove WARN_ON when freeing expected receive groups 2019-04-03 15:27:30 -03:00
exp_rcv.h IB/hfi1: Cleanup of exp_rcv 2018-05-24 09:39:25 -06:00
fault.c infiniband: hfi1: fix memory leaks 2019-08-20 13:44:45 -04:00
fault.h IB/hfi1: Rework fault injection machinery 2018-05-09 15:53:30 -04:00
file_ops.c IB/hfi1: Remove overly conservative VM_EXEC flag check 2019-01-21 14:20:08 -07:00
firmware.c
hfi.h IB/hfi1: Create inline to get extended headers 2019-06-17 21:15:40 -04:00
init.c IB/hfi1: Calculate flow weight based on QP MTU for TID RDMA 2019-11-06 13:15:36 -04:00
intr.c
iowait.c IB/hfi1: Prioritize the sending of ACK packets 2019-02-05 18:07:44 -05:00
iowait.h IB/hfi1: Prioritize the sending of ACK packets 2019-02-05 18:07:44 -05:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mad.c IB/hfi1: Define variables as unsigned long to fix KASAN warning 2019-09-13 16:59:55 -03:00
mad.h IB/hfi1: Convert PortXmitWait/PortVLXmitWait counters to flit times 2018-02-01 15:43:30 -07:00
Makefile IB/hfi1: Reduce excessive aspm inlines 2019-06-28 22:34:26 -03:00
mmu_rb.c mm/mmu_notifier: use structure for invalidate_range_start/end callback 2018-12-28 12:11:50 -08:00
mmu_rb.h
msix.c IB/hfi1: Rework the IRQ API to be more flexible 2018-09-01 08:13:38 -04:00
msix.h IB/hfi1: Make the MSIx resource allocation a bit more flexible 2018-09-01 08:13:38 -04:00
opa_compat.h
opfn.c IB/hfi1: Add TID RDMA retry timer 2019-02-05 18:07:43 -05:00
opfn.h IB/hfi1: Make opfn.h self sufficient 2019-04-24 11:31:49 -03:00
pcie.c IB/hfi1: Ensure full Gen3 speed in a Gen4 system 2019-11-06 13:13:43 -04:00
pio.c Linux 5.2-rc6 2019-06-28 21:18:23 -03:00
pio.h IB/hfi1: Reduce lock contention on iowait_lock for sdma and pio 2018-12-06 20:15:36 -07:00
pio_copy.c
platform.c IB/{hfi1, rdmavt}: Fix memory leak in hfi1_alloc_devdata() upon failure 2018-05-03 15:24:48 -04:00
platform.h
qp.c IB/{rdmavt, hfi1, qib}: Add helpers to hide SWQE WR details 2019-06-28 22:34:26 -03:00
qp.h IB/hfi1: Add the dual leg code 2019-02-05 18:07:44 -05:00
qsfp.c IB/{hfi1, rdmavt}: Fix memory leak in hfi1_alloc_devdata() upon failure 2018-05-03 15:24:48 -04:00
qsfp.h
rc.c IB/hfi1: TID RDMA WRITE should not return IB_WC_RNR_RETRY_EXC_ERR 2019-11-06 13:15:36 -04:00
rc.h IB/hfi1: Delay the release of destination mr for TID RDMA WRITE DATA 2019-04-03 15:27:30 -03:00
ruc.c IB/{rdmavt, hfi1): Miscellaneous comment fixes 2019-04-24 11:31:48 -03:00
sdma.c IB/hfi1: Use a common pad buffer for 9B and 16B packets 2019-10-17 16:32:25 -04:00
sdma.h IB/hfi1: Reduce lock contention on iowait_lock for sdma and pio 2018-12-06 20:15:36 -07:00
sdma_txreq.h IB/hfi1: Prioritize the sending of ACK packets 2019-02-05 18:07:44 -05:00
sysfs.c RDMA: Introduce and use rdma_device_to_ibdev() 2019-01-14 13:12:03 -07:00
tid_rdma.c IB/hfi1: Calculate flow weight based on QP MTU for TID RDMA 2019-11-06 13:15:36 -04:00
tid_rdma.h IB/hfi1: Calculate flow weight based on QP MTU for TID RDMA 2019-11-06 13:15:36 -04:00
trace.c IB/hfi1: Add static trace for TID RDMA WRITE protocol 2019-02-05 18:07:44 -05:00
trace.h IB/hfi1: Add static trace for OPFN 2019-01-31 11:37:40 -05:00
trace_ctxts.h treewide: remove large struct-pass-by-value from tracepoint arguments 2018-03-28 22:55:18 +02:00
trace_dbg.h IB/hfi1: Fix two format strings 2019-03-28 11:03:49 -03:00
trace_ibhdrs.h IB/hfi1: Add missing INVALIDATE opcodes for trace 2019-06-28 22:34:26 -03:00
trace_iowait.h IB/hfi1: Add static trace for iowait 2018-09-30 19:21:12 -06:00
trace_misc.h
trace_mmu.h
trace_rc.h IB/hfi1: Add static trace for TID RDMA READ protocol 2019-02-05 17:53:56 -05:00
trace_rx.h IB/hfi1: Add static trace for OPFN 2019-01-31 11:37:40 -05:00
trace_tid.h IB/hfi1: Add traces for TID RDMA READ 2019-09-13 16:59:55 -03:00
trace_tx.h IB/hfi1: Add static trace for TID RDMA WRITE protocol 2019-02-05 18:07:44 -05:00
uc.c IB/{hfi1, qib, rdmavt}: Put qp in error state when cq is full 2019-06-28 22:34:26 -03:00
ud.c IB/{rdmavt, hfi1, qib}: Add helpers to hide SWQE WR details 2019-06-28 22:34:26 -03:00
user_exp_rcv.c IB/hfi1: Validate page aligned for a given virtual address 2019-05-29 12:56:05 -03:00
user_exp_rcv.h IB/hfi1: TID RDMA RcvArray programming and TID allocation 2019-02-05 17:53:55 -05:00
user_pages.c mm/gup: add make_dirty arg to put_user_pages_dirty_lock() 2019-09-24 15:54:08 -07:00
user_sdma.c IB/hfi1: Close PSM sdma_progress sleep window 2019-06-11 17:06:45 -03:00
user_sdma.h IB/hfi1: Remove unused define 2019-07-22 16:10:48 -03:00
verbs.c IB/hfi1: Use a common pad buffer for 9B and 16B packets 2019-10-17 16:32:25 -04:00
verbs.h IB/hfi1: Use aborts to trigger RC throttling 2019-06-17 21:15:40 -04:00
verbs_txreq.c IB/hfi1: Silence txreq allocation warnings 2019-06-17 21:15:40 -04:00
verbs_txreq.h IB/hfi1: Silence txreq allocation warnings 2019-06-17 21:15:40 -04:00
vnic.h
vnic_main.c 5.2 Merge Window pull request 2019-05-09 09:02:46 -07:00
vnic_sdma.c net: Use skb_frag_off accessors 2019-07-30 14:21:32 -07:00