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Date: Tue, 2 Jan 2018 11:37:16 +0200
From: Leon Romanovsky <leon@...nel.org>
To: Doug Ledford <dledford@...hat.com>,
Jason Gunthorpe <jgg@...lanox.com>,
David Ahern <dsahern@...il.com>
Cc: RDMA mailing list <linux-rdma@...r.kernel.org>,
Leon Romanovsky <leonro@...lanox.com>,
netdev <netdev@...r.kernel.org>,
Stephen Hemminger <stephen@...workplumber.org>
Subject: [PATCH iproute2-next 0/9] RDMA resource tracking
From: Leon Romanovsky <leonro@...lanox.com>
Hi,
This is supplementary (user-space) part of RDMA resource tracking posted
to the RDMA mailing list for the review [1].
The main goal of this new functionality in RDMAtool is to provide debug visibility
of running applications in RDMA stack.
The current series adds new command object (resource) which provides
short summary if it is called without arguments or more detailed
information while it is called with request to present QPs.
1) Summary information:
$ rdma res
1: mlx5_0: curr/max: pd 3/16777216 cq 5/16777216 qp 4/262144
2: mlx5_1: curr/max: pd 3/16777216 cq 5/16777216 qp 4/262144
3: mlx5_2: curr/max: pd 3/16777216 cq 5/16777216 qp 4/262144
4: mlx5_3: curr/max: pd 2/16777216 cq 3/16777216 qp 2/262144
5: mlx5_4: curr/max: pd 3/16777216 cq 5/16777216 qp 4/262144
2) Summary information of specific device:
$ rdma res show mlx5_4
5: mlx5_4: curr/max: pd 3/16777216 cq 5/16777216 qp 4/262144
3) Detailed information of specific device:
$ rdma res show qp link mlx5_4
DEV/PORT LQPN TYPE STATE PID COMM
mlx5_4/- 8 UD RESET 0 [ipoib-verbs]
mlx5_4/1 7 UD RTS 0 [mlx5-gsi]
mlx5_4/1 1 GSI RTS 0 [rdma-mad]
mlx5_4/1 0 SMI RTS 0 [rdma-mad]
$ rdma res show qp link mlx5_4/
DEV/PORT LQPN TYPE STATE PID COMM
mlx5_4/- 8 UD RESET 0 [ipoib-verbs]
mlx5_4/1 7 UD RTS 0 [mlx5-gsi]
mlx5_4/1 1 GSI RTS 0 [rdma-mad]
mlx5_4/1 0 SMI RTS 0 [rdma-mad]
4) Wrong port (it can be 1 or 2):
$ rdma res show qp link mlx5_4/0
Wrong device name
5) Detailed information of specific device and port:
$ rdma res show qp link mlx5_4/1
DEV/PORT LQPN TYPE STATE PID COMM
mlx5_4/1 7 UD RTS 0 [mlx5-gsi]
mlx5_4/1 1 GSI RTS 0 [rdma-mad]
mlx5_4/1 0 SMI RTS 0 [rdma-mad]
6) Detailed information of QPs not-connected to port yet:
$ rdma res show qp link mlx5_4/-
DEV/PORT LQPN TYPE STATE PID COMM
mlx5_4/- 8 UD RESET 0 [ipoib-verbs]
7) Very detailed view:
$ rdma res show qp link mlx5_4/- -d
DEV/PORT LQPN RQPN TYPE STATE PID COMM SQ-PSN RQ-PSN PATH-MIG
mlx5_4/- 8 --- UD RESET 0 [ipoib-verbs] 0 --- ---
8) Limit display to specific columns:
$ rdma res show qp link mlx5_4/1 display pid,lqpn,comm
DEV/PORT LQPN PID COMM
mlx5_4/1 7 0 [mlx5-gsi]
mlx5_4/1 1 0 [rdma-mad]
mlx5_4/1 0 0 [rdma-mad]
9) Filter specific processes:
$ rdma res show qp link mlx5_4/1 display pid,lqpn,comm pid 0-2000
DEV/PORT LQPN PID COMM
mlx5_4/1 7 0 [mlx5-gsi]
mlx5_4/1 1 0 [rdma-mad]
mlx5_4/1 0 0 [rdma-mad]
Thanks
[1] https://marc.info/?l=linux-rdma&m=151488112032562&w=2
Leon Romanovsky (9):
rdam: Add option to provide "-" sign for the port number
rdma: Make visible the number of arguments
rdma: Add filtering infrastructure
rdma: Set pointer to device name position
rdma: Allow external usage of compare string routine
rdma: Update kernel header file
rdma: Add resource tracking summary
rdma: Add QP resource tracking information
rdma: Document resource tracking
include/uapi/rdma/rdma_netlink.h | 58 +++++-
man/man8/rdma-resource.8 | 91 +++++++++
rdma/Makefile | 2 +-
rdma/link.c | 2 +-
rdma/rdma.c | 4 +-
rdma/rdma.h | 23 ++-
rdma/res.c | 411 +++++++++++++++++++++++++++++++++++++++
rdma/utils.c | 300 +++++++++++++++++++++++++++-
8 files changed, 874 insertions(+), 17 deletions(-)
create mode 100644 man/man8/rdma-resource.8
create mode 100644 rdma/res.c
--
2.15.1
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