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Date: Mon, 5 Apr 2021 08:23:54 +0300
From: Leon Romanovsky <leon@...nel.org>
To: Doug Ledford <dledford@...hat.com>,
Jason Gunthorpe <jgg@...dia.com>
Cc: Leon Romanovsky <leonro@...dia.com>,
Adit Ranadive <aditr@...are.com>,
Anna Schumaker <anna.schumaker@...app.com>,
Ariel Elior <aelior@...vell.com>,
Avihai Horon <avihaih@...dia.com>,
Bart Van Assche <bvanassche@....org>,
Bernard Metzler <bmt@...ich.ibm.com>,
Christoph Hellwig <hch@....de>,
Chuck Lever <chuck.lever@...cle.com>,
"David S. Miller" <davem@...emloft.net>,
Dennis Dalessandro <dennis.dalessandro@...nelisnetworks.com>,
Devesh Sharma <devesh.sharma@...adcom.com>,
Faisal Latif <faisal.latif@...el.com>,
Jack Wang <jinpu.wang@...os.com>,
Jakub Kicinski <kuba@...nel.org>,
"J. Bruce Fields" <bfields@...ldses.org>,
Jens Axboe <axboe@...com>,
Karsten Graul <kgraul@...ux.ibm.com>,
Keith Busch <kbusch@...nel.org>, Lijun Ou <oulijun@...wei.com>,
linux-cifs@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-nfs@...r.kernel.org, linux-nvme@...ts.infradead.org,
linux-rdma@...r.kernel.org, linux-s390@...r.kernel.org,
Max Gurtovoy <maxg@...lanox.com>,
Max Gurtovoy <mgurtovoy@...dia.com>,
"Md. Haris Iqbal" <haris.iqbal@...os.com>,
Michael Guralnik <michaelgur@...dia.com>,
Michal Kalderon <mkalderon@...vell.com>,
Mike Marciniszyn <mike.marciniszyn@...nelisnetworks.com>,
Naresh Kumar PBS <nareshkumar.pbs@...adcom.com>,
netdev@...r.kernel.org, Potnuri Bharat Teja <bharat@...lsio.com>,
rds-devel@....oracle.com, Sagi Grimberg <sagi@...mberg.me>,
samba-technical@...ts.samba.org,
Santosh Shilimkar <santosh.shilimkar@...cle.com>,
Selvin Xavier <selvin.xavier@...adcom.com>,
Shiraz Saleem <shiraz.saleem@...el.com>,
Somnath Kotur <somnath.kotur@...adcom.com>,
Sriharsha Basavapatna <sriharsha.basavapatna@...adcom.com>,
Steve French <sfrench@...ba.org>,
Trond Myklebust <trond.myklebust@...merspace.com>,
VMware PV-Drivers <pv-drivers@...are.com>,
Weihang Li <liweihang@...wei.com>,
Yishai Hadas <yishaih@...dia.com>,
Zhu Yanjun <zyjzyj2000@...il.com>
Subject: [PATCH rdma-next 00/10] Enable relaxed ordering for ULPs
From: Leon Romanovsky <leonro@...dia.com>
>From Avihai,
Relaxed Ordering is a PCIe mechanism that relaxes the strict ordering
imposed on PCI transactions, and thus, can improve performance.
Until now, relaxed ordering could be set only by user space applications
for user MRs. The following patch series enables relaxed ordering for the
kernel ULPs as well. Relaxed ordering is an optional capability, and as
such, it is ignored by vendors that don't support it.
The following test results show the performance improvement achieved
with relaxed ordering. The test was performed on a NVIDIA A100 in order
to check performance of storage infrastructure over xprtrdma:
Without Relaxed Ordering:
READ: bw=16.5GiB/s (17.7GB/s), 16.5GiB/s-16.5GiB/s (17.7GB/s-17.7GB/s),
io=1987GiB (2133GB), run=120422-120422msec
With relaxed ordering:
READ: bw=72.9GiB/s (78.2GB/s), 72.9GiB/s-72.9GiB/s (78.2GB/s-78.2GB/s),
io=2367GiB (2542GB), run=32492-32492msec
Thanks
Avihai Horon (10):
RDMA: Add access flags to ib_alloc_mr() and ib_mr_pool_init()
RDMA/core: Enable Relaxed Ordering in __ib_alloc_pd()
RDMA/iser: Enable Relaxed Ordering
RDMA/rtrs: Enable Relaxed Ordering
RDMA/srp: Enable Relaxed Ordering
nvme-rdma: Enable Relaxed Ordering
cifs: smbd: Enable Relaxed Ordering
net/rds: Enable Relaxed Ordering
net/smc: Enable Relaxed Ordering
xprtrdma: Enable Relaxed Ordering
drivers/infiniband/core/mr_pool.c | 7 +-
drivers/infiniband/core/rw.c | 12 ++--
drivers/infiniband/core/verbs.c | 26 +++++--
drivers/infiniband/hw/bnxt_re/ib_verbs.c | 2 +-
drivers/infiniband/hw/bnxt_re/ib_verbs.h | 2 +-
drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 2 +-
drivers/infiniband/hw/cxgb4/mem.c | 2 +-
drivers/infiniband/hw/hns/hns_roce_device.h | 2 +-
drivers/infiniband/hw/hns/hns_roce_mr.c | 2 +-
drivers/infiniband/hw/i40iw/i40iw_verbs.c | 3 +-
drivers/infiniband/hw/mlx4/mlx4_ib.h | 2 +-
drivers/infiniband/hw/mlx4/mr.c | 2 +-
drivers/infiniband/hw/mlx5/mlx5_ib.h | 12 ++--
drivers/infiniband/hw/mlx5/mr.c | 61 ++++++++--------
drivers/infiniband/hw/mlx5/wr.c | 69 ++++++++++++++-----
drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 2 +-
drivers/infiniband/hw/ocrdma/ocrdma_verbs.h | 2 +-
drivers/infiniband/hw/qedr/verbs.c | 2 +-
drivers/infiniband/hw/qedr/verbs.h | 2 +-
drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c | 4 +-
.../infiniband/hw/vmw_pvrdma/pvrdma_verbs.h | 2 +-
drivers/infiniband/sw/rdmavt/mr.c | 3 +-
drivers/infiniband/sw/rdmavt/mr.h | 2 +-
drivers/infiniband/sw/rxe/rxe_verbs.c | 2 +-
drivers/infiniband/sw/siw/siw_verbs.c | 2 +-
drivers/infiniband/sw/siw/siw_verbs.h | 2 +-
drivers/infiniband/ulp/iser/iser_memory.c | 10 ++-
drivers/infiniband/ulp/iser/iser_verbs.c | 6 +-
drivers/infiniband/ulp/rtrs/rtrs-clt.c | 6 +-
drivers/infiniband/ulp/rtrs/rtrs-srv.c | 15 ++--
drivers/infiniband/ulp/srp/ib_srp.c | 8 +--
drivers/nvme/host/rdma.c | 19 +++--
fs/cifs/smbdirect.c | 17 +++--
include/rdma/ib_verbs.h | 11 ++-
include/rdma/mr_pool.h | 3 +-
net/rds/ib_frmr.c | 7 +-
net/smc/smc_ib.c | 3 +-
net/smc/smc_wr.c | 3 +-
net/sunrpc/xprtrdma/frwr_ops.c | 10 +--
39 files changed, 209 insertions(+), 140 deletions(-)
--
2.30.2
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