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passt: Introduce packet batching mechanism

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Receive packets in batches from AF_UNIX, check if they can be sent
with a single syscall, and batch them up with sendmmsg() in case.

A bit rudimentary, currently only implemented for UDP, but it seems
to work.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Stefano Brivio
2021-04-22 13:39:36 +02:00
parent 5b0c88d4ef
commit 1f7cf04d34
8 changed files with 337 additions and 122 deletions
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3
icmp.h
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@@ -4,7 +4,8 @@
struct ctx;
void icmp_sock_handler(struct ctx *c, int s, uint32_t events);
void icmp_tap_handler(struct ctx *c, int af, void *addr, char *in, size_t len);
int icmp_tap_handler(struct ctx *c, int af, void *addr,
struct tap_msg *msg, int count);
int icmp_sock_init(struct ctx *c);
/**