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netgraph/ng_bridge: become SMP aware

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The node ng_bridge underwent a lot of changes in the last few months.
All those steps were necessary to distinguish between structure
modifying and read-only data transport paths.  Now it's done, the node
can perform frame forwarding on multiple cores in parallel.

MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D28123
This commit is contained in:
Lutz Donnerhacke 2021-01-12 22:28:29 +01:00
parent 1c2ab28f59
commit 9674c2e68c
1 changed files with 0 additions and 9 deletions
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9
sys/netgraph/ng_bridge.c
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@ -351,15 +351,6 @@ ng_bridge_constructor(node_p node)
priv->conf.minStableAge = DEFAULT_MIN_STABLE_AGE;
priv->sendUnknown = 1; /* classic bridge */
/*
* This node has all kinds of stuff that could be screwed by SMP.
* Until it gets it's own internal protection, we go through in
* single file. This could hurt a machine bridging between two
* GB ethernets so it should be fixed.
* When it's fixed the process SHOULD NOT SLEEP, spinlocks please!
* (and atomic ops )
*/
NG_NODE_FORCE_WRITER(node);
NG_NODE_SET_PRIVATE(node, priv);
priv->node = node;