Steve Wise d37ac31ddc RDMA/cxgb4: Support variable sized work requests ... T4 EQ entries are in multiples of 64 bytes. Currently the RDMA SQ and RQ use fixed sized entries composed of 4 EQ entries for the SQ and 2 EQ entries for the RQ. For optimial latency with small IO, we need to change this so the HW only needs to DMA the EQ entries actually used by a given work request. Implementation: - add wq_pidx counter to track where we are in the EQ. cidx/pidx are used for the sw sq/rq tracking and flow control. - the variable part of work requests is the SGL. Add new functions to build the SGL and/or immediate data directly in the EQ memory wrapping when needed. - adjust the min burst size for the EQ contexts to 64B. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>		2010-07-21 11:16:20 -07:00
..
cm.c	RDMA/cxgb4: Add module option to tweak delayed ack	2010-07-21 10:53:52 -07:00
cq.c	RDMA/cxgb4: Remove dependency on __GFP_NOFAIL	2010-07-21 10:55:05 -07:00
device.c	RDMA/cxgb4: Register RDMA provider based on LLD state_change events	2010-05-24 21:07:59 -07:00
ev.c	MAINTAINERS: Add cxgb4 and iw_cxgb4 entries	2010-05-05 14:45:40 -07:00
iw_cxgb4.h	RDMA/cxgb4: Use the DMA state API instead of the pci equivalents	2010-07-06 14:01:42 -07:00
Kconfig
Makefile
mem.c	RDMA/cxgb4: Remove dependency on __GFP_NOFAIL	2010-07-21 10:55:05 -07:00
provider.c	Merge branches 'cxgb4', 'misc', 'mlx4', 'nes' and 'qib' into for-next	2010-05-25 09:54:03 -07:00
qp.c	RDMA/cxgb4: Support variable sized work requests	2010-07-21 11:16:20 -07:00
resource.c
t4.h	RDMA/cxgb4: Support variable sized work requests	2010-07-21 11:16:20 -07:00
t4fw_ri_api.h	RDMA/cxgb4: Add module option to tweak delayed ack	2010-07-21 10:53:52 -07:00
user.h