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tcp, tcp_splice: Avoid double layered dispatch for connected TCP sockets

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Currently connected TCP sockets have the same epoll type, whether they're
for a "tap" connection or a spliced connection.  This means that
tcp_sock_handler() has to do a secondary check on the type of the
connection to call the right function.  We can avoid this by adding a new
epoll type and dispatching directly to the right thing.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
David Gibson 2024-01-16 11:50:38 +11:00 • committed by Stefano Brivio
commit 02e092b4fe
5 changed files with 27 additions and 39 deletions

2
passt.h
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@ -51,6 +51,8 @@ enum epoll_type {
EPOLL_TYPE_NONE = 0,
/* Connected TCP sockets */
EPOLL_TYPE_TCP,
/* Connected TCP sockets (spliced) */
EPOLL_TYPE_TCP_SPLICE,
/* Listening TCP sockets */
EPOLL_TYPE_TCP_LISTEN,
/* timerfds used for TCP timers */