Jianxin Xiong 14833b8c52 IB/hfi1: Improve SDMA engine assignment for user SDMA ... Currently each user context is assigned a single SDMA engine based on the VL, context id, and subcontext id. That means for MPI applications, each rank can only use one SDMA engine for all messages. This may create unwanted backup for independent messages going to different destinations upon congestion at one destination. This patch adds the packet "dlid" to the formula of SDMA engine selection for user SDMA requests. A simple hash table is used to maintain even distribution among the available SDMA engines regardless how the "dlid" values are distributed. Reviewed-by: Dean Luick <dean.luick@intel.com> Reviewed-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Jianxin Xiong <jianxin.xiong@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>		2016-08-02 15:47:43 -04:00
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core	IB core: Add port_xmit_wait counter	2016-07-12 10:46:24 -04:00
hw	IB/hfi1: Improve SDMA engine assignment for user SDMA	2016-08-02 15:47:43 -04:00
sw	IB/rdmavt: Correct qp_priv_alloc() return value test	2016-06-23 10:16:15 -04:00
ulp	IB/srpt: Reduce QP buffer size	2016-06-23 12:04:09 -04:00
Kconfig	IB/hfi1: Move driver out of staging	2016-05-26 11:35:14 -04:00
Makefile	IB/rdmavt: Create module framework and handle driver registration	2016-03-10 20:37:04 -05:00