#compdef astraceroute
#
# astraceroute.zsh -- zsh completion function for astraceroute
#
# Copyright (C) 2013 Hideo Hattori <hhatto.jp@gmail.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.

typeset -A opt_args

_interfaces () {
    _wanted interfaces expl 'network interface' \
    _net_interfaces
    _values "Pseudo-device that captures on all interfaces" "any"
}

_arguments -s -S \
    "(-H --host)"{-H,--host}"[Host/IPv4/IPv6 to lookup AS route to]:host:_hosts" \
    "(-p --port)"{-p,--port}"[Hosts port to lookup AS route to]:port:_gnu_generic" \
    "(-i -d --dev)"{-i,-d,--dev}"[Networking device i.e., eth0]:device:_interfaces" \
    "(-b --bind)"{-b,--bind}"[IP address to bind to, Must specify -6 for an IPv6 address]" \
    "(-4 --ipv4)"{-4,--ipv4}"[Use IPv4 requests (default)]" \
    "(-6 --ipv6)"{-6,--ipv6}"[Use IPv6 requests]" \
    "(-n --numeric)"{-n,--numeric}"[Do not do reverse DNS lookup for hops]" \
    "(-u --update)"{-u,--update}"[Update GeoIP databases]" \
    "(-L --latitude)"{-L,--latitude}"[Show latitude and longitude]" \
    "(-N --dns)"{-N,--dns}"[Do a reverse DNS lookup for hops]" \
    "(-f --init-ttl)"{-f,--init-ttl}"[Set initial TTL]:ttl:_gnu_generic" \
    "(-m --max-ttl)"{-m,--max--ttl}"[Set maximum TTL]:ttl:_gnu_generic" \
    "(-q --num-probes)"{-q,--num-probes}"[Number of max probes for each hop (default: 3)]:num:_gnu_generic" \
    "(-x --timeout)"{-x,--timeout}"[Probe response timeout in sec (default: 3)]:timeout:_gnu_generic" \
    "(-S --syn)"{-S,--syn}"[Set TCP SYN flag in packets]" \
    "(-A --ack)"{-A,--ack}"[Set TCP ACK flag in packets]" \
    "(-F --fin)"{-F,--fin}"[Set TCP FIN flag in packets]" \
    "(-P --psh)"{-P,--psh}"[Set TCP PSH flag in packets]" \
    "(-U --urg)"{-U,--urg}"[Set TCP URG flag in packets]" \
    "(-R --rst)"{-R,--rst}"[Set TCP RST flag in packets]" \
    "(-E --ecn-syn)"{-E,--ecn-syn}"[Send ECN SYN packets (RFC3168)]" \
    "(-t --tos)"{-t,--tos}"[Set the IP TOS field]:tos:_gnu_generic" \
    "(-G --nofrag)"{-G,--nofrag}"[Set do not fragment bit]" \
    "(-X --payload)"{-X,--payload}"[Specify a payload string to test DPIs]:string:_gnu_generic" \
    "(-Z --show-packet)"{-Z,--show-packet}"[Show returned packet on each hop]" \
    "(-l --totlen)"{-l,--totlen}"[Specify total packet len]:lengths:_gnu_generic" \
    {-v,--version}"[Print version and exit]:" \
    {-h,--help}"[Print help and exit]:" \
    "*::args:_gnu_generic"
'><input type='hidden' name='id' value='05c974669ecec510a85d8534099bb75404e82c41'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Chuck Lever &lt;chuck.lever@oracle.com&gt;</td><td class='right'>2016-09-06 11:22:58 -0400</td></tr>
<tr><th>committer</th><td>Trond Myklebust &lt;trond.myklebust@primarydata.com&gt;</td><td class='right'>2016-09-06 15:59:35 -0400</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=05c974669ecec510a85d8534099bb75404e82c41'>05c974669ecec510a85d8534099bb75404e82c41</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=05c974669ecec510a85d8534099bb75404e82c41'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=05c974669ecec510a85d8534099bb75404e82c41'>8f35a5f3dfa7f9b98781c1026e17b26c5e716097</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=78d506e1b7071b24850fd5ac22b896c459b0a04c'>78d506e1b7071b24850fd5ac22b896c459b0a04c</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=05c974669ecec510a85d8534099bb75404e82c41&amp;id2=78d506e1b7071b24850fd5ac22b896c459b0a04c'>diff</a>)</td></tr></table>
<div class='commit-subject'>xprtrdma: Fix receive buffer accounting</div><div class='commit-msg'>An RPC can terminate before its reply arrives, if a credential
problem or a soft timeout occurs. After this happens, xprtrdma
reports it is out of Receive buffers.

A Receive buffer is posted before each RPC is sent, and returned to
the buffer pool when a reply is received. If no reply is received
for an RPC, that Receive buffer remains posted. But xprtrdma tries
to post another when the next RPC is sent.

If this happens a few dozen times, there are no receive buffers left
to be posted at send time. I don't see a way for a transport
connection to recover at that point, and it will spit warnings and
unnecessarily delay RPCs on occasion for its remaining lifetime.

Commit 1e465fd4ff47 ("xprtrdma: Replace send and receive arrays")
removed a little bit of logic to detect this case and not provide
a Receive buffer so no more buffers are posted, and then transport
operation continues correctly. We didn't understand what that logic
did, and it wasn't commented, so it was removed as part of the
overhaul to support backchannel requests.

Restore it, but be wary of the need to keep extra Receives posted
to deal with backchannel requests.

Fixes: 1e465fd4ff47 ("xprtrdma: Replace send and receive arrays")
Signed-off-by: Chuck Lever &lt;chuck.lever@oracle.com&gt;
Reviewed-by: Anna Schumaker &lt;Anna.Schumaker@Netapp.com&gt;
Signed-off-by: Trond Myklebust &lt;trond.myklebust@primarydata.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=05c974669ecec510a85d8534099bb75404e82c41'>Diffstat</a></div><table summary='diffstat' class='diffstat'>