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Tue, 08 Jun 2021 10:47:00 -0700 (PDT) Sender: Anna Schumaker From: schumaker.anna@gmail.com X-Google-Original-From: Anna.Schumaker@Netapp.com To: linux-nfs@vger.kernel.org Cc: Anna.Schumaker@Netapp.com Subject: [RFC PATCH 2/6] nfs-sysfs.py: Add a command for printing xprt switch information Date: Tue, 8 Jun 2021 13:46:53 -0400 Message-Id: <20210608174657.603256-3-Anna.Schumaker@Netapp.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210608174657.603256-1-Anna.Schumaker@Netapp.com> References: <20210608174657.603256-1-Anna.Schumaker@Netapp.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org From: Anna Schumaker This combines the information found in xprt_switch_info with a subset of the information found in each xprt subdirectory Signed-off-by: Anna Schumaker --- tools/nfs-sysfs/nfs-sysfs.py | 6 ++++++ tools/nfs-sysfs/switch.py | 35 +++++++++++++++++++++++++++++++++++ tools/nfs-sysfs/sysfs.py | 10 ++++++++++ tools/nfs-sysfs/xprt.py | 12 ++++++++++++ 4 files changed, 63 insertions(+) create mode 100644 tools/nfs-sysfs/switch.py create mode 100644 tools/nfs-sysfs/xprt.py diff --git a/tools/nfs-sysfs/nfs-sysfs.py b/tools/nfs-sysfs/nfs-sysfs.py index 8ff59ea9e81b..90efcbed7ac8 100755 --- a/tools/nfs-sysfs/nfs-sysfs.py +++ b/tools/nfs-sysfs/nfs-sysfs.py @@ -9,5 +9,11 @@ def show_small_help(args): print("sunrpc dir:", sysfs.SUNRPC) parser.set_defaults(func=show_small_help) + +import switch +subparser = parser.add_subparsers(title="commands") +switch.add_command(subparser) + + args = parser.parse_args() args.func(args) diff --git a/tools/nfs-sysfs/switch.py b/tools/nfs-sysfs/switch.py new file mode 100644 index 000000000000..afb6963a0a1f --- /dev/null +++ b/tools/nfs-sysfs/switch.py @@ -0,0 +1,35 @@ +import sysfs +import xprt + +class XprtSwitch: + def __init__(self, path): + self.path = path + self.id = int(str(path).rsplit("-", 1)[1]) + + self.xprts = [ xprt.Xprt(p) for p in self.path.iterdir() if p.is_dir() ] + self.xprts.sort() + + self.__dict__.update(sysfs.read_info_file(path / "xprt_switch_info")) + + def __lt__(self, rhs): + return self.path < rhs.path + + def __str__(self): + line = "switch %s: num_xprts %s, num_active %s, queue_len %s" % \ + (self.id, self.num_xprts, self.num_active, self.queue_len) + for x in self.xprts: + line += "\n %s" % x.small_str() + return line + + +def list_xprt_switches(args): + switches = [ XprtSwitch(f) for f in (sysfs.SUNRPC / "xprt-switches").iterdir() ] + switches.sort() + for xs in switches: + if args.id == None or xs.id == args.id[0]: + print(xs) + +def add_command(subparser): + parser = subparser.add_parser("xprt-switch", help="Commands for xprt switches") + parser.add_argument("--id", metavar="ID", nargs=1, type=int, help="Id of a specific xprt-switch to show") + parser.set_defaults(func=list_xprt_switches) diff --git a/tools/nfs-sysfs/sysfs.py b/tools/nfs-sysfs/sysfs.py index 0b358f57bb28..32dcf74438de 100644 --- a/tools/nfs-sysfs/sysfs.py +++ b/tools/nfs-sysfs/sysfs.py @@ -16,3 +16,13 @@ SUNRPC = pathlib.Path(MOUNT) / "kernel" / "sunrpc" if not SUNRPC.is_dir(): print("ERROR: sysfs does not have sunrpc directory") sys.exit(1) + + +def read_info_file(path): + res = dict() + with open(path) as info: + for line in info: + if "=" in line: + (key, val) = line.strip().split("=") + res[key] = int(val) + return res diff --git a/tools/nfs-sysfs/xprt.py b/tools/nfs-sysfs/xprt.py new file mode 100644 index 000000000000..d37537771c1d --- /dev/null +++ b/tools/nfs-sysfs/xprt.py @@ -0,0 +1,12 @@ +class Xprt: + def __init__(self, path): + self.path = path + self.id = int(str(path).rsplit("-", 2)[1]) + self.type = str(path).rsplit("-", 2)[2] + self.dstaddr = open(path / "dstaddr", 'r').readline().strip() + + def __lt__(self, rhs): + return self.id < rhs.id + + def small_str(self): + return "xprt %s: %s, %s" % (self.id, self.type, self.dstaddr)