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Adrian Chadd 6eb9f206a6 [ath] [ar9300] ensure the software scheduler is called to form more aggregates for EDMA chips
When investigating performance on UDP TX on the AR9380 I found that the
following sequence was occuring:

* INTR
* EINPROGRESS - nothing yet
* INTR
* TXSTATUS - process a TX completion for an aggregate
* INTR, INTR
* TXSTATUS - process a TX completion for an aggregate
* TXD, TXD ... populate frames from the hardware queue and submit

What should be happening is a completed TXSTATUS fires off more packets
that are queued on active TIDs.

What /was/ happening was after that first TXSTATUS the TX queue hardware queue
was still empty, so it didn't push anything into the FIFO.  Only after the
second TXSTATUS did any progress get made.

This is one of two commits - it ensures that the software TX queue scheduler
is called /after/ TX completion, otherwise no frames from the software staging
queues will be processed into the hardware queues.

The second commit will fix it so it populates aggregate frames correctly
when the above occurs - right now ath_txq_sched() is called, but it doesn't
populate anything because its pre-check conditions are wrong.

Whilst here, add/tweak debugging.

Tested:

* AR9380 STA (testing device) -> AR9580 hostap
2017-01-23 04:20:37 +00:00
bin chmod: Add SIGINFO handler 2017-01-08 06:50:53 +00:00
cddl Fix an unchecked return value in zfsd 2017-01-18 22:10:18 +00:00
contrib Import mandoc cvs snapshot 20170121 (pre 1.14) 2017-01-21 13:17:25 +00:00
crypto MFV r311913: 2017-01-11 05:49:39 +00:00
etc Remove obsolete /usr/lib/debug/usr/lib/private dir 2017-01-20 03:14:18 +00:00
gnu Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones 2017-01-20 05:51:25 +00:00
include Remove some uses of the GCC __nonnull() attribute. 2017-01-01 17:16:47 +00:00
kerberos5 Conditionalize adding ${KRB5DIR}/lib/gssapi/krb5/gkrb5_err.et to ETSRCS 2017-01-02 19:03:01 +00:00
lib Improve wording around SO_TS_CLOCK documentation. 2017-01-20 18:37:14 +00:00
libexec rtld: do not rely on a populated GOT on amd64 2017-01-16 14:49:29 +00:00
release Enable IPv6 networking on Amazon EC2. 2017-01-15 09:06:45 +00:00
rescue DIRDEPS_BUILD: Update dependencies. 2016-11-13 00:11:30 +00:00
sbin By default, when doing incremental restores the restore program 2017-01-22 17:49:14 +00:00
secure Conditionalize building libwrap support into sshd 2017-01-07 08:08:35 +00:00
share Document mount option "nonc" for tmpfs. 2017-01-22 19:50:23 +00:00
sys [ath] [ar9300] ensure the software scheduler is called to form more aggregates for EDMA chips 2017-01-23 04:20:37 +00:00
targets Merge ^/head r308491 through r308841. 2016-11-19 16:05:55 +00:00
tests Fix typo in r312216 2017-01-15 10:29:53 +00:00
tools [athalq] fix rxtimestamp wrapping; print out per-packet timestamp deltas. 2017-01-22 07:05:41 +00:00
usr.bin Move values displayed by "iscsictl -v" one character to the right, 2017-01-22 20:11:24 +00:00
usr.sbin Really restore the old behaviour for pw usermod -m 2017-01-22 20:03:18 +00:00
.arcconfig callsign isn't required anymore 2016-09-29 06:19:45 +00:00
.arclint phabricator related changes: 2015-04-20 20:33:22 +00:00
COPYRIGHT Bump copyright year. 2016-12-31 12:41:42 +00:00
LOCKS Explicitly require Security Officer's approval for kernel PRNG bits. 2013-09-17 14:19:05 +00:00
MAINTAINERS Remove myself from kern_timeout.c yeah! 2016-07-27 20:37:32 +00:00
Makefile Add full softfloat and hardfloat support for RISC-V. 2016-11-16 15:21:32 +00:00
Makefile.inc1 Import mandoc cvs snapshot 20170121 (pre 1.14) 2017-01-21 13:17:25 +00:00
Makefile.libcompat Enable /usr/lib32 for o32 binaries on mips64. 2017-01-06 23:30:54 +00:00
ObsoleteFiles.inc Fix typo from change 310985 in ObsoleteFiles.inc 2017-01-10 20:37:44 +00:00
README README: remove nonexistent 'games' directory. 2016-05-18 10:43:13 +00:00
UPDATING Deprecate kernel configuration option EM_MULTIQUEUE now that the em(4) 2017-01-12 14:38:18 +00:00

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