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opnsense-src/sys
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John Baldwin be0319fd19 Add a tunable to disable migration of MSI-X interrupts. 
The new 'machdep.disable_msix_migration' tunable can be set to 1 to
disable migration of MSI-X interrupts.

Xen versions prior to 4.6.0 do not properly handle updates to MSI-X
table entries after the initial write.  In particular, the operation
to unmask a table entry after updating it during migration is not
propagated to the "real" table for passthrough devices causing the
interrupt to remain masked.  At least some systems in EC2 are
affected by this bug when using SRIOV.  The tunable can be set in
loader.conf as a workaround.

Submitted by:	Jeremiah Lott <jlott@averesystems.com> (original patch)
Approved by:	re (marius)
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D6947
2016-06-24 22:49:32 +00:00
..
amd64 Update comments for the MD functions managing contexts for new 2016-06-16 12:05:44 +00:00
arm Revert the recent armv6 changes to ALIGNED_POINTER(), restoring the 2016-06-21 17:53:42 +00:00
arm64 Fix a race when the hardware has raised an exception with an unknown or 2016-06-22 12:05:08 +00:00
boot Print a message when disks are found but no logical partition are 2016-06-17 17:09:22 +00:00
bsm
cam Rename CAM_NETFLIX_IOSCHED to CAM_IOSCHED_DYNAMIC to better reflect 2016-06-23 23:20:58 +00:00
cddl fix deadlock-prone code in getzfsvfs() 2016-06-23 07:01:54 +00:00
compat Regen post r302096 and implement svr4_pipe(). 2016-06-23 00:30:09 +00:00
conf Update head to ALPHA5 in preparation of new snapshot builds. 2016-06-24 00:05:45 +00:00
contrib Get closer to a VIMAGE network stack teardown from top to bottom rather 2016-06-21 13:48:49 +00:00
crypto Connect the SHA-512t256 and Skein hashing algorithms to ZFS 2016-05-31 04:12:14 +00:00
ddb Add a small set of logical operators to DDB command language. 2016-05-16 19:42:38 +00:00
dev Add pci_get_max_payload() to fetch the PCI-express maximum payload size. 2016-06-24 17:26:42 +00:00
fs Do not access NFS data for reclaimed vnode. 2016-06-19 18:29:43 +00:00
gdb
geom Switch geom_disk over to using a pool mutex. 2016-06-23 20:05:59 +00:00
gnu Revert changes for local testing, inadvertantly commited in r300811. 2016-05-26 23:59:42 +00:00
i386 Update comments for the MD functions managing contexts for new 2016-06-16 12:05:44 +00:00
isa sys/isa: minor spelling fixes. 2016-05-03 21:51:52 +00:00
kern posixshm: Fix lock leak when mac_posixshm_check_read rejects read. 2016-06-23 20:59:13 +00:00
kgssapi kgssapi: insignificant spelling fix. 2016-05-03 22:05:03 +00:00
libkern sys: Make use of our rounddown() macro when sys/param.h is available. 2016-04-30 14:41:18 +00:00
mips Update comments for the MD functions managing contexts for new 2016-06-16 12:05:44 +00:00
modules Change the default build behavior so we don't compile extra TCP modules by 2016-06-10 19:06:11 +00:00
net Update pf(4) and pflog(4) to survive basic VNET testing, which includes 2016-06-23 21:34:38 +00:00
net80211 [net80211] remove node scan lock / generation number + fix few LORs 2016-06-19 07:31:02 +00:00
netgraph Get closer to a VIMAGE network stack teardown from top to bottom rather 2016-06-21 13:48:49 +00:00
netinet Try to avoid a 2nd conditional by re-writing the loop, pause, and 2016-06-23 21:32:52 +00:00
netinet6 Don't consider the socket when processing an incoming ICMP/ICMP6 packet, 2016-06-23 09:13:15 +00:00
netipsec Get closer to a VIMAGE network stack teardown from top to bottom rather 2016-06-21 13:48:49 +00:00
netnatm kernel: use our nitems() macro when it is available through param.h. 2016-04-19 23:48:27 +00:00
netpfil The void isn't void. 2016-06-24 11:53:12 +00:00
netsmb sys/net*: minor spelling fixes. 2016-05-03 18:05:43 +00:00
nfs NFS: spelling fixes on comments. 2016-04-29 16:07:25 +00:00
nfsclient
nfsserver
nlm Remote and local adv lock servers might de-synchronize (the added comment 2016-06-19 18:32:35 +00:00
ofed Fix bug in iwcm that caused a panic in iw_cm_wq when krping is run 2016-06-14 20:58:05 +00:00
opencrypto sys/opencrypto: minor spelling fixes. 2016-05-06 23:37:19 +00:00
pc98 Move 'device pci' for the PCI bus driver to the MI NOTES file. 2016-04-29 23:53:55 +00:00
powerpc Update comments for the MD functions managing contexts for new 2016-06-16 12:05:44 +00:00
riscv Update comments for the MD functions managing contexts for new 2016-06-16 12:05:44 +00:00
rpc Deobfuscate cleanup path in clnt_bck_create(..) 2016-06-10 17:53:28 +00:00
security Implement AUE_PREAD and AUE_PWRITE BSM conversion support, eliminating 2016-06-13 09:22:20 +00:00
sparc64 Update comments for the MD functions managing contexts for new 2016-06-16 12:05:44 +00:00
sys Fix bitstring allocation on 32-bit platforms 2016-06-24 21:44:46 +00:00
teken
tests
tools Fix MFS builds when both MD_ROOT_SIZE and MFS_IMAGE are specified 2016-02-02 07:02:51 +00:00
ufs arc4random() returns 0 to (2**32)−1, use an alternative to initialize 2016-05-22 14:31:20 +00:00
vm In vm_page_xunbusy_maybelocked(), add fast path for unbusy when no 2016-06-23 08:28:13 +00:00
x86 Add a tunable to disable migration of MSI-X interrupts. 2016-06-24 22:49:32 +00:00
xdr RPC: for pointers replace 0 with NULL. 2016-04-14 17:06:37 +00:00
xen xen: Correct typo in #undef for symbol NBPL 2016-06-06 14:55:46 +00:00
Makefile Add riscv to the list of architectures for cscope. 2016-02-29 16:39:27 +00:00