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Searched refs:MSG_ZEROCOPY (Results 1 – 13 of 13) sorted by relevance

/openbmc/linux/Documentation/networking/
H A Dmsg_zerocopy.rst3 MSG_ZEROCOPY title
9 The MSG_ZEROCOPY flag enables copy avoidance for socket send calls.
18 such as sendfile and splice. The MSG_ZEROCOPY flag extends the
23 notification overhead. As a result, MSG_ZEROCOPY is generally only
34 Converting an existing application to MSG_ZEROCOPY is not always as
52 [PATCH net-next v4 0/9] socket sendmsg MSG_ZEROCOPY
59 Passing the MSG_ZEROCOPY flag is the most obvious step to enable copy
83 ret = send(fd, buf, sizeof(buf), MSG_ZEROCOPY);
108 MSG_ZEROCOPY that successfully sends data increments the counter. The
208 Passing flag MSG_ZEROCOPY is a hint to the kernel to apply copy
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/openbmc/linux/tools/perf/trace/beauty/
H A Dmsg_flags.c14 #ifndef MSG_ZEROCOPY
15 #define MSG_ZEROCOPY 0x4000000 macro
/openbmc/linux/tools/testing/selftests/net/
H A Dudpgso_bench_tx.c46 #ifndef MSG_ZEROCOPY
47 #define MSG_ZEROCOPY 0x4000000 macro
279 cfg_zerocopy ? MSG_ZEROCOPY : 0); in send_tcp()
299 ret = sendto(fd, data, len, cfg_zerocopy ? MSG_ZEROCOPY : 0, in send_udp()
371 ret = sendmmsg(fd, mmsgs, i, cfg_zerocopy ? MSG_ZEROCOPY : 0); in send_udp_sendmmsg()
420 ret = sendmsg(fd, &msg, cfg_zerocopy ? MSG_ZEROCOPY : 0); in send_udp_segment()
H A Dtcp_mmap.c71 #ifndef MSG_ZEROCOPY
72 #define MSG_ZEROCOPY 0x4000000 macro
598 (size_t)wr, zflg ? MSG_ZEROCOPY : 0); in main()
H A Dmsg_zerocopy.c73 #ifndef MSG_ZEROCOPY
74 #define MSG_ZEROCOPY 0x4000000 macro
197 flags |= MSG_ZEROCOPY; in do_sendmsg()
/openbmc/qemu/io/
H A Dchannel-socket.c33 #if (defined(MSG_ZEROCOPY) && defined(SO_ZEROCOPY))
595 sflags = MSG_ZEROCOPY; in qio_channel_socket_writev()
/openbmc/linux/net/rds/
H A Dsend.c958 if ((msg->msg_flags & MSG_ZEROCOPY) && !zcopy_cookie) in rds_rm_size()
1117 bool zcopy = ((msg->msg_flags & MSG_ZEROCOPY) && in rds_sendmsg()
1131 if (msg->msg_flags & ~(MSG_DONTWAIT | MSG_CMSG_COMPAT | MSG_ZEROCOPY)) { in rds_sendmsg()
/openbmc/linux/tools/perf/trace/beauty/include/linux/
H A Dsocket.h329 #define MSG_ZEROCOPY 0x4000000 /* Use user data in kernel path */ macro
/openbmc/linux/include/linux/
H A Dsocket.h329 #define MSG_ZEROCOPY 0x4000000 /* Use user data in kernel path */ macro
/openbmc/linux/io_uring/
H A Dnet.c1217 msg_flags = zc->msg_flags | MSG_ZEROCOPY; in io_send_zc()
1291 flags = sr->msg_flags | MSG_ZEROCOPY; in io_sendmsg_zc()
/openbmc/linux/net/ipv4/
H A Dtcp.c1052 if ((flags & MSG_ZEROCOPY) && size) { in tcp_sendmsg_locked()
1056 zc = MSG_ZEROCOPY; in tcp_sendmsg_locked()
1065 zc = MSG_ZEROCOPY; in tcp_sendmsg_locked()
1224 } else if (zc == MSG_ZEROCOPY) { in tcp_sendmsg_locked()
H A Dip_output.c1012 if ((flags & MSG_ZEROCOPY) && length) { in __ip_append_data()
/openbmc/linux/net/ipv6/
H A Dip6_output.c1579 if ((flags & MSG_ZEROCOPY) && length) { in __ip6_append_data()