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2f03a95fd2
freebsd-dev/sys
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Alexander Motin 2f03a95fd2 Fix few issues in ioat(4) driver. 
- Do not explicitly count active descriptors.  It allows hardware reset
to happen while device is still referenced, plus simplifies locking.
 - Do not stop/start callout each time the queue becomes empty.  Let it
run to completion and rearm if needed, that is much cheaper then to touch
it every time, plus also simplifies locking.
 - Decouple submit and cleanup locks, making driver reentrant.
 - Avoid memory mapped status register read on every interrupt.
 - Improve locking during device attach/detach.
 - Remove some no longer used variables.

Reviewed by:	cem
MFC after:	1 week
Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D19231
2019-02-21 16:47:36 +00:00
..
amd64 Add kernel support for Intel userspace protection keys feature on 2019-02-20 09:51:13 +00:00
arm Add kernel support for Intel userspace protection keys feature on 2019-02-20 09:51:13 +00:00
arm64 Add kernel support for Intel userspace protection keys feature on 2019-02-20 09:51:13 +00:00
bsm Create new EINTEGRITY error with message "Integrity check failed". 2019-01-17 06:35:45 +00:00
cam Fix panic message. 2019-02-13 00:10:12 +00:00
cddl Simplify the code. No functional changes. 2019-02-20 00:25:45 +00:00
compat Make taskqgroup_attach{,_cpu}(9) work across architectures 2019-02-12 21:23:59 +00:00
conf Implement rangesets. 2019-02-20 09:38:19 +00:00
contrib MFV: r344395 2019-02-20 23:53:39 +00:00
crypto Regularize the Netflix copyright 2019-02-04 21:28:25 +00:00
ddb ddb: Print the thread's pcb in 'show thread' 2019-02-09 21:08:19 +00:00
dev Fix few issues in ioat(4) driver. 2019-02-21 16:47:36 +00:00
dts Adapt FreeBSD specific DT stub for Jetson TK1 board to be consistent with 2019-02-06 06:03:44 +00:00
fs fuse: Fix a regression introduced in r337165 2019-02-21 02:41:57 +00:00
gdb
geom Define a constant for the maximum number of GEOM_CTL arguments. 2019-02-20 17:07:08 +00:00
gnu Import DTS from Linux 4.20 2019-01-11 09:40:34 +00:00
i386 Add kernel support for Intel userspace protection keys feature on 2019-02-20 09:51:13 +00:00
isa
kern Allow the kcov buffer to be mmaped multiple times. 2019-02-21 10:11:15 +00:00
kgssapi * Handle SIGPIPE in gssd 2019-02-21 01:30:37 +00:00
libkern Add non-sleepable strdup variant strdup_flags 2019-02-20 20:48:10 +00:00
mips Add kernel support for Intel userspace protection keys feature on 2019-02-20 09:51:13 +00:00
modules Remove drm2 modules. 2019-02-19 19:36:56 +00:00
net iflib: Improve return values of interrupt handlers. 2019-02-15 18:51:43 +00:00
net80211 net80211(4): hide casts for 'i_seq' field offset calculation inside 2019-02-10 23:58:56 +00:00
netgraph Remove remnants of byte order manipulation, back when FreeBSD stack 2019-02-09 03:00:00 +00:00
netinet The receive buffer autoscaling for TCP is based on a linear growth, which 2019-02-21 10:35:32 +00:00
netinet6 When dropping a fragment queue count the number of fragments in the queue 2019-02-19 19:57:55 +00:00
netipsec Remove unused argument to priv_check_cred. 2018-12-11 19:32:16 +00:00
netpfil Remove `set' field from state structure and use set from parent rule. 2019-02-11 18:10:55 +00:00
netsmb Remove unused argument to priv_check_cred. 2018-12-11 19:32:16 +00:00
nfs
nfsclient
nfsserver
nlm
ofed Mechanical cleanup of epoch(9) usage in network stack. 2019-01-09 01:11:19 +00:00
opencrypto Fix another issue from r344141, having to do with size of a shift amount. 2019-02-15 04:15:43 +00:00
powerpc Add kernel support for Intel userspace protection keys feature on 2019-02-20 09:51:13 +00:00
riscv Add kernel support for Intel userspace protection keys feature on 2019-02-20 09:51:13 +00:00
rpc Bump the default kern.rpc.gss.client_max from 128 to 1024. 2019-02-19 11:07:02 +00:00
security Create new EINTEGRITY error with message "Integrity check failed". 2019-01-17 06:35:45 +00:00
sparc64 Add kernel support for Intel userspace protection keys feature on 2019-02-20 09:51:13 +00:00
sys Add non-sleepable strdup variant strdup_flags 2019-02-20 20:48:10 +00:00
teken Attempt to complete fixing programmable function keys for syscons. 2019-02-20 02:14:41 +00:00
tests Regularize the Netflix copyright 2019-02-04 21:28:25 +00:00
tools make_dtb.sh: Use $CPP instead of assuming that cpp is in $PATH 2018-12-14 23:53:28 +00:00
ufs This bug was introduced with the change to use softdep_bp_to_mp() in 2019-01-28 21:36:45 +00:00
vm Clear pointers to indicate that the respective locks are released. 2019-02-21 15:44:32 +00:00
x86 Add usermode helpers for for Intel userspace protection keys feature. 2019-02-20 09:56:23 +00:00
xdr
xen xen: introduce a new way to setup event channel upcall 2019-01-30 11:34:52 +00:00
Makefile