[PATCH v3 14/23] staging/rdma/hfi1: Implement Expected Receive TID caching

From: Mitko Haralanov Expected receives work by user-space libraries (PSM) calling into the driver with information about the user's receive buffer and have the driver DMA-map that buffer and program the HFI to receive data directly into it. This is an expensive

[PATCH v3 21/23] staging/rdma/hfi1: Add unit # to verbs txreq cache name

From: Jubin John The name used to create the verbs txreq cache was not qualified with the unit number. This causes a panic when destroying the cache on a dual HFI systems. Create a unique name with the unit number with this patch Reviewed-by: Mike Marciniszyn

[PATCH v3 09/23] staging/rdma/hfi1: Add a schedule in send thread

From: Dean Luick When under heavy load, the send handler can run too long without allowing other tasks to run. Add a conditional resched to break this up. Reviewed-by: Mike Marciniszyn Signed-off-by: Dean Luick

[PATCH v3 10/23] staging/rdma/hfi1: Fix port bounce issues with 0.22 DC firmware

From: Easwar Hariharan The DC firmware overwrites the enable_lane_tx register and does not update it on a host request to go to Poll. This causes an infinite loop through the LNI state machine if a link width downgrade occurs. This patch re-sets the enable_lane_tx

[PATCH v3 22/23] staging/rdma/hfi1: add additional rc traces

From: Mike Marciniszyn Add additional rc traces to aid in debugging rc retry logic. Reviewed-by: Dennis Dalessandro Signed-off-by: Mike Marciniszyn Signed-off-by: Ira Weiny ---

[PATCH v3 17/23] staging/rdma/hfi1: Add irqsaves in the packet processing path

From: Dean Luick In preparation for threading the receive interrupt, add irqsaves in the packet processing path. When the receive interrupt is threaded, the packet processing path is no longer guaranteed to have IRQs disabled. Add irqsaves where needed on several locks in

[PATCH v3 19/23] staging/rdma/hfi: modify workqueue for parallelism

From: Mike Marciniszyn The workqueue is currently single threaded per port which for a small number of SDMA engines is ok. For hfi1, the there are up to 16 SDMA engines that can be fed descriptors in parallel. This patch: - Converts to use alloc_workqueue - Changes

[PATCH v3 11/23] staging/rdma/hfi1: Prevent silent data corruption with user SDMA

From: Mitko Haralanov User SDMA keeps track of progress into the submitted IO vectors by tracking an offset into the vectors when packets are submitted. This offset is updated after a successful submission of a txreq to the SDMA engine. The same offset was used when

[PATCH v3 16/23] staging/rdma/hfi1: Increase SDMA descriptor queue size

From: Ignacio Hernandez A value of 2048 increased PSM performance while not impacting verbs performance. Reviewed-by: Mike Marciniszyn Reviewed-by: Mitko Haralanov Signed-off-by: Ignacio Hernandez

[PATCH v3 23/23] staging/rdma/hfi1: Update driver version string to 0.9-294

From: Jubin John Signed-off-by: Jubin John Signed-off-by: Ira Weiny --- drivers/staging/rdma/hfi1/common.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/rdma/hfi1/common.h

[PATCH v3 08/23] staging/rdma/hfi1: Reset firmware instead of reloading Sbus

From: Caz Yokoyama Reset firmware instead of reloading Sbus firmware if it's already done for this ASIC. To work around thermal polling problem in firmware, don't reload Sbus firmware, instead, reset the firmware on the initialization of the second HFI. Reviewed-by:

[PATCH v3 04/23] staging/rdma/hfi1: Prevent host software lock up

From: Vennila Megavannan If packets stop egressing the hardware link, software can lock up. Implement a timeout for send context halt recovery. This patch increases the timeout for packet egress to 500 us and timer resets to zero if the packet occupancy changes.

[PATCH v3 03/23] staging/rdma/hfi1: Extend the offline timeout

From: Dean Luick The latest version of the 8051 firmware will wait longer when bringing the link down. Extend the driver's timeout to go with that. Reviewed-by: Dennis Dalessandro Signed-off-by: Dean Luick

[PATCH v3 12/23] staging/rdma/hfi1: Macro code clean up

From: Mitko Haralanov Clean up the context and sdma macros and move them to a more logical place in hfi.h Signed-off-by: Mitko Haralanov Signed-off-by: Ira Weiny --- drivers/staging/rdma/hfi1/hfi.h | 22

[PATCH v3 01/23] staging/rdma/hfi1: Fix regression in send performance

From: Mike Marciniszyn The clear_ahg call is new in hfi1 vs qib. For small messages the progress routine always builds one and clears out the ahg state when the queue has gone to empty which is the predominant case for small messages. Inline the routine and avoid

[PATCH v3 05/23] staging/rdma/hfi1: Remove QSFP_ENABLED from HFI capability mask

From: Easwar Hariharan The QSFP interface code has been running without issues and the flag is never set to off. This patch removes the QSFP_ENABLED bit from HFI1_CAP. Reviewed-by: Mike Marciniszyn Signed-off-by: Easwar Hariharan

[PATCH v3 18/23] staging/rdma/hfi1: Thread the receive interrupt.

From: Dean Luick When under heavy load, the receive interrupt handler can run too long with IRQs disabled. Add a mixed-mode threading scheme. Initially process packets in the handler for quick responses (latency). If there are too many packets to process move to a thread

[PATCH v3 13/23] staging/rdma/hfi1: Wrong cast breaks desired pointer arithmetic

From: Mitko Haralanov The address being mapped into a process's memory for notification events was improperly calculated due to cast that was happening too early. dd->events is a pointer and should have been casted to unsigned long after the pointer arithmetic was

[PATCH v3 06/23] staging/rdma/hfi1: Add coalescing support for SDMA TX descriptors

From: Niranjana Vishwanathapura This fixes transmit errors when the number of scatter gather elements in the request is more that the number of per packet descriptors supported by the hardware, allocate and coalesce the extra scatter gather elements into a

[PATCH v3 15/23] staging/rdma/hfi1: Allow tuning of SDMA interrupt rate

From: Mitko Haralanov The SDMA engines were configured to generate progress interrupts every time they processed N/2 descriptors (where N is the size of the descriptor queue). This interval was too infrequent, leading to degraded performance. This commit adds a module

[PATCH v3 07/23] staging/rdma/hfi1: close shared context security hole

From: Jareer Abdel-Qader Driver does not verify userid for shared context assignments, allowing malicious user access. Reviewed by: Mike Marciniszyn Signed-off-by: Jareer H Abdel-Qader Signed-off-by:

[PATCH v3 00/23] staging/rdma/hfi1: Fix bugs and performance issues

From: Ira Weiny The following are fixes to the hfi1 driver for stability, security, and performance. Changes from v2: Rebased to latest staging-next Update commit messages Squashed these patches together:

[PATCH v3 02/23] staging/rdma/hfi1: Fix code to reset ASIC CSRs on FLR

From: Easwar Hariharan The ASIC registers were not reset on FLR, and the code to protect the ASIC block against multiple initializations by peer HFIs did not extend to multiple ASICs in a system. This patch addresses this gap. Reviewed-by: Dean Luick

[ANNOUNCE] OFED 3.18-1-rc2 release is available

Hi, OFED-3.18-1-rc2 is available at: https://openfabrics.org/downloads/OFED/ofed-3.18-1/OFED-3.18-1-rc2.tgz To get BUILD_ID run ofed_info Please report any issues in bugzilla http://bugs.openfabrics.org/bugzilla/ for OFED 3.18-1 Release notes:

RE: [PATCH rdma-RC] IB/cm: Fix rb-tree duplicate free and use-after-free

> > Sean, I need to close on this patch. What is your position after > > Matan's explanation? > > > > Absent an objection from Sean, I've pulled this in. A use after free > bug is a pretty serious issue, and you've listed an error flow that > triggers it. The only thing bugging me is that this