linux_dsm_epyc7002/drivers/infiniband/hw/qedr
Steve Wise 33023fb85a IB/core: add max_send_sge and max_recv_sge attributes
This patch replaces the ib_device_attr.max_sge with max_send_sge and
max_recv_sge. It allows ulps to take advantage of devices that have very
different send and recv sge depths.  For example cxgb4 has a max_recv_sge
of 4, yet a max_send_sge of 16.  Splitting out these attributes allows
much more efficient use of the SQ for cxgb4 with ulps that use the RDMA_RW
API. Consider a large RDMA WRITE that has 16 scattergather entries.
With max_sge of 4, the ulp would send 4 WRITE WRs, but with max_sge of
16, it can be done with 1 WRITE WR.

Acked-by: Sagi Grimberg <sagi@grimberg.me>
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Selvin Xavier <selvin.xavier@broadcom.com>
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-06-18 13:17:28 -06:00
..
Kconfig Updates for 4.15 kernel merge window 2017-11-15 14:54:53 -08:00
main.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
Makefile RDMA/qedr: Add iWARP connection management qp related callbacks 2017-08-18 12:26:38 -04:00
qedr_hsi_rdma.h qed*: Utilize FW 8.37.2.0 2018-06-05 10:48:09 -04:00
qedr_iw_cm.c RDMA/qedr: Fix iWARP connect with port mapper 2018-03-06 19:57:37 -07:00
qedr_iw_cm.h RDMA/qedr: Add iWARP connection management functions 2017-08-18 12:27:14 -04:00
qedr_roce_cm.c RDMA: Convert drivers to use the AH's sgid_attr in post_wr paths 2018-06-18 11:11:27 -06:00
qedr_roce_cm.h RDMA/qedr: Rename the qedr_cm file as a preparation for iWARP support 2017-08-18 12:25:18 -04:00
qedr.h Merge branch 'for-next-early' into for-next 2017-10-18 13:07:13 -04:00
verbs.c IB/core: add max_send_sge and max_recv_sge attributes 2018-06-18 13:17:28 -06:00
verbs.h RDMA/providers: Simplify query_gid callback of RoCE providers 2018-04-03 21:33:47 -06:00