summaryrefslogtreecommitdiff
path: root/net/mpls/Kconfig
blob: 5c467ef973114c49b352ac64ed248e4199d3d0f3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
#
# MPLS configuration
#

menuconfig MPLS
	bool "MultiProtocol Label Switching"
	default n
	---help---
	  MultiProtocol Label Switching routes packets through logical
	  circuits.  Originally conceived as a way of routing packets at
	  hardware speeds (before hardware was capable of routing ipv4 packets),
	  MPLS remains a simple way of making tunnels.

	  If you have not heard of MPLS you probably want to say N here.

if MPLS

config NET_MPLS_GSO
	tristate "MPLS: GSO support"
	help
	 This is helper module to allow segmentation of non-MPLS GSO packets
	 that have had MPLS stack entries pushed onto them and thus
	 become MPLS GSO packets.

config MPLS_ROUTING
	tristate "MPLS: routing support"
	---help---
	 Add support for forwarding of mpls packets.

config MPLS_IPTUNNEL
	tristate "MPLS: IP over MPLS tunnel support"
	depends on LWTUNNEL && MPLS_ROUTING
	---help---
	 mpls ip tunnel support.

endif # MPLS
c'>ce6547ef2987fbb289fa28f03536328a42781651 /include/uapi/asm-generic/unistd.h parent191e885a2e130e639bb0c8ee350d7047294f2ce6 (diff)
Drivers: hv: vmbus: finally fix hv_need_to_signal_on_read()
Commit a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") added the proper mb(), but removed the test "prev_write_sz < pending_sz" when making the signal decision. As a result, the guest can signal the host unnecessarily, and then the host can throttle the guest because the host thinks the guest is buggy or malicious; finally the user running stress test can perceive intermittent freeze of the guest. This patch brings back the test, and properly handles the in-place consumption APIs used by NetVSC (see get_next_pkt_raw(), put_pkt_raw() and commit_rd_index()). Fixes: a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") Signed-off-by: Dexuan Cui <decui@microsoft.com> Reported-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Tested-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: <stable@vger.kernel.org> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi/asm-generic/unistd.h')