linux/net/sunrpc/xprtrdma
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
..
backchannel.c NFS client updates for Linux 4.18 2018-06-12 10:09:03 -07:00
fmr_ops.c NFS client updates for Linux 4.18 2018-06-12 10:09:03 -07:00
frwr_ops.c NFS client updates for Linux 4.18 2018-06-12 10:09:03 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
module.c NFS client updates for Linux 4.18 2018-06-12 10:09:03 -07:00
rpc_rdma.c NFS client updates for Linux 4.18 2018-06-12 10:09:03 -07:00
svc_rdma_backchannel.c NFS client updates for Linux 4.18 2018-06-12 10:09:03 -07:00
svc_rdma_recvfrom.c svcrdma: Fix incorrect return value/type in svc_rdma_post_recvs 2018-06-08 16:28:55 -04:00
svc_rdma_rw.c svcrdma: Persistently allocate and DMA-map Receive buffers 2018-05-11 15:48:57 -04:00
svc_rdma_sendto.c svcrdma: Persistently allocate and DMA-map Send buffers 2018-05-11 15:48:57 -04:00
svc_rdma_transport.c IB/core: add max_send_sge and max_recv_sge attributes 2018-06-18 13:17:28 -06:00
svc_rdma.c xprtrdma: Prepare RPC/RDMA includes for server-side trace points 2018-05-11 15:48:57 -04:00
transport.c NFS client updates for Linux 4.18 2018-06-12 10:09:03 -07:00
verbs.c IB/core: add max_send_sge and max_recv_sge attributes 2018-06-18 13:17:28 -06:00
xprt_rdma.h NFS client updates for Linux 4.18 2018-06-12 10:09:03 -07:00