BMC/Intel-BMC/linux.git/drivers/infiniband/sw, branch dev-4.6

IB/rdmavt: Fix send scheduling

2016-04-28T16:00:39+00:00

call_send is used to determine whether to send immediately or schedule a send for later. The current logic in rdmavt is inverted and has a negative impact on the latency of the hfi1 and qib drivers. Fix this regression by correctly calling send immediately when call_send is set. Reviewed-by: Dennis Dalessandro Reviewed-by: Mike Marciniszyn Signed-off-by: Jubin John Signed-off-by: Doug Ledford

IB/rdmavt: Post receive for QP in ERR state

2016-03-17T19:55:22+00:00

Accordingly IB Spec post WR to receive queue must complete with error if QP is in Error state. Please refer to C10-42, C10-97.2.1 Reviewed-by: Mike Marciniszyn Reviewed-by: Dennis Dalessandro Signed-off-by: Alex Estrin Signed-off-by: Doug Ledford

IB/hfi1: Report pid in qp_stats to aid debug

2016-03-17T19:55:19+00:00

Tracking user/QP ownership is needed to debug issues with user ULPs like OpenMPI. Reviewed-by: Dennis Dalessandro Signed-off-by: Mike Marciniszyn Signed-off-by: Doug Ledford

IB/rdmavt: Check lkey_table_size value before use

2016-03-11T01:45:45+00:00

The lkey_table_size driver specific parameter value is used before its value is sanity checked and restricted to RVT_MAX_LKEY_TABLE_BITS. This causes a vmalloc allocation failure for large values. Fix this by moving the value check before the first usage of the value. Reviewed-by: Dennis Dalessandro Reviewed-by: Mike Marciniszyn Signed-off-by: Jubin John Signed-off-by: Doug Ledford

IB/rdamvt: fix cross build with rdmavt

2016-03-11T01:45:44+00:00

The new check routine causes a larger than supported frame size on s390. Changing the check routine to noinline fixes the issue. Reviewed-by: Dennis Dalessandro Signed-off-by: Mike Marciniszyn Signed-off-by: Doug Ledford

IB/qib, staging/rdma/hfi1, IB/rdmavt: progress selection changes

2016-03-11T01:38:14+00:00

The non-rdamvt versions of qib and hfi1 allow for a differing heuristic to override a schedule progress in favor of a direct call the the progress routine. This patch adds that for both drivers and rdmavt. Reviewed-by: Dennis Dalessandro Signed-off-by: Mike Marciniszyn Signed-off-by: Doug Ledford

IB/rdmavt: Remove unnecessary exported functions

2016-03-11T01:38:10+00:00

Remove exported functions which are no longer required as the functionality has moved into rdmavt. This also requires re-ordering some of the functions since their prototype no longer appears in a header file. Rather than add forward declarations it is just cleaner to re-order some of the functions. Reviewed-by: Jubin John Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford

IB/rdmavt: Remove RVT_FLAGs

2016-03-11T01:38:10+00:00

While hfi1 and qib were still supporting bits and pieces of core verbs components there needed to be a way to convey if rdmavt should handle allocation and initialize of resources like the queue pair table. Now that all of this is moved into rdmavt there is no need for these flags. They are no longer used in the drivers. Reviewed-by: Ira Weiny Reviewed-by: Jubin John Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford

IB/rdmavt: Add per verb driver callback checking

2016-03-11T01:38:09+00:00

For each verb validate that all requirements for driver callbacks are met. If a function is called without checking for a valid pointer, it is a required function. Also document what each callback function does. Reviewed-by: Mike Marciniszyn Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford

IB/rdmavt: Clean up comments and add more documentation

2016-03-11T01:38:08+00:00

Add, remove, and otherwise clean up existing comments that are leftover from the initial code postings of rdmavt. Many of the comments were added to provide an idea on the direction we were thinking of going. Now that the design is solidified make a pass over and clean everything up. Also add details where lacking. Ensure all non static functions have nano comments. Reviewed-by: Jubin John Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford