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opnsense-src/sys
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Alexander Motin 0f99cb55ff Implement request queue overflow protection. 
Before this change in case of request queue overflow driver just froze the
device queue for 100ms to retry after.  It was pretty bad for performance.
This change introduces SIM queue freezing when free space on the request
queue drops below 255 entries (worst case of maximum I/O size S/G list),
checking for a chance to release it on I/O completion.  If the queue still
get overflowed somehow, the old mechanism is still in place, just with
delay reduced to 10ms.

With the earlier queue length increase overflows should not happen often,
but it is still easily reachable on synthetic tests.
2020-11-24 04:16:49 +00:00
..
amd64 Linuxolator: Replace use of eventhandlers by sysent hooks. 2020-11-23 18:18:16 +00:00
arm if_awg: Add a awg_dma_start_tx function that trigger dma engine 2020-11-20 11:30:44 +00:00
arm64 Linuxolator: Replace use of eventhandlers by sysent hooks. 2020-11-23 18:18:16 +00:00
bsm bsm: add AUE_CLOSERANGE 2020-04-24 01:27:25 +00:00
cam Microoptimize cam_num_doneqs math in xpt_done(). 2020-11-20 05:46:27 +00:00
cddl [cddl] Fix lz4 function definitions to not tri pup compile. 2020-11-17 17:11:07 +00:00
compat Linuxolator: Replace use of eventhandlers by sysent hooks. 2020-11-23 18:18:16 +00:00
conf Move kern_clocksource.c to sys/conf/files 2020-11-19 02:53:29 +00:00
contrib Adjust ENA driver files to latest ena-com changes 2020-11-18 14:59:22 +00:00
crypto Check cipher key lengths during probesession. 2020-11-05 23:31:58 +00:00
ddb db_search_symbol: prevent pollution from bogus symbols 2020-10-26 16:42:53 +00:00
dev Implement request queue overflow protection. 2020-11-24 04:16:49 +00:00
dts Brand our DTS with the Linux version it was imported from 2020-10-10 07:18:51 +00:00
fs msdosfs: suspend around unmount or remount rw->ro. 2020-11-20 15:19:30 +00:00
gdb gdb(4): Don't escape GDB special characters at application layer 2020-09-30 14:55:54 +00:00
geom gbde: replace malloc_last_fail with a kludge 2020-11-12 20:20:57 +00:00
gnu Brand our DTS with the Linux version it was imported from 2020-10-10 07:18:51 +00:00
i386 Linuxolator: Replace use of eventhandlers by sysent hooks. 2020-11-23 18:18:16 +00:00
isa
kern locks: push lock_delay_arg_init calls down 2020-11-24 03:49:37 +00:00
kgssapi State kgssapi dependency on xdr. 2020-09-17 22:29:38 +00:00
libkern arc4random(9): Integrate with RANDOM_FENESTRASX push-reseed 2020-10-10 21:48:06 +00:00
mips Fix octeon_pmc post-r334827 2020-11-18 17:37:01 +00:00
modules Remove parallel SCSI and 1/2Gb FC support from isp(4). 2020-11-20 01:15:48 +00:00
net Refactor rib iterator functions. 2020-11-22 20:21:10 +00:00
net80211 net80211: fix a typo 2020-11-04 12:07:33 +00:00
netgraph ng_nat: unbreak ABI 2020-11-10 02:26:44 +00:00
netinet Fix two occurences of a typo in a comment introduced in r367530. 2020-11-23 10:13:56 +00:00
netinet6 Refactor rib iterator functions. 2020-11-22 20:21:10 +00:00
netipsec Trigger soft lifetime expiration on sequence number 2020-10-16 11:27:01 +00:00
netpfil pf: Fix incorrect assertion 2020-11-20 10:08:33 +00:00
netsmb net: clean up empty lines in .c and .h files 2020-09-01 21:19:14 +00:00
nfs nfs: clean up empty lines in .c and .h files 2020-09-01 21:25:39 +00:00
nfsclient nfs: clean up empty lines in .c and .h files 2020-09-01 21:25:39 +00:00
nfsserver nfs: Mark unused statistics variable as reserved 2020-11-18 04:35:49 +00:00
nlm nlm: clean up empty lines in .c and .h files 2020-09-01 22:14:52 +00:00
ofed Fix for referencing file via its vnode in ibore. 2020-11-02 10:44:29 +00:00
opencrypto Use void * in place of caddr_t. 2020-11-06 18:09:52 +00:00
powerpc [POWERPC] print uprintf_signal 'type' field in hex 2020-11-20 18:52:37 +00:00
riscv riscv: always initialize the static kernel environment 2020-11-20 15:21:10 +00:00
rpc Fix a potential memory leak in the NFS over TLS handling code. 2020-09-05 00:50:52 +00:00
security pipe: allow for lockless pipe_stat 2020-11-19 06:30:25 +00:00
sys dtrace: stop using eventhandlers for the part compiled into the kernel 2020-11-23 18:27:21 +00:00
teken Do a sweep and remove most WARNS=6 settings 2020-10-01 01:10:51 +00:00
tests Add small tool to invoke kernel test framework tests. 2020-09-02 09:20:40 +00:00
tools Brand our DTS with the Linux version it was imported from 2020-10-10 07:18:51 +00:00
ufs Handle LoR in flush_pagedep_deps(). 2020-11-14 05:30:10 +00:00
vm Wrap a long line in vm_pqbatch_process_page() 2020-11-19 15:41:42 +00:00
x86 Add device_t member to struct iommu. 2020-11-16 15:29:52 +00:00
xdr xdr: clean up empty lines in .c and .h files 2020-09-01 22:13:28 +00:00
xen xen: clean up empty lines in .c and .h files 2020-09-01 21:21:55 +00:00
Makefile