This patchset creates the initial plumbing for a io_uring command for sockets. For now, create two uring commands for sockets, SOCKET_URING_OP_SIOCOUTQ and SOCKET_URING_OP_SIOCINQ, which are available in TCP, UDP and RAW sockets. In order to test this code, I created a liburing test, which is currently located at [1], and I will create a pull request once we are good with this patchset. V1 submission was sent a while ago[2], but it required more plumbing that were done in different patch submissions[3][4]. PS: This patchset depends on a commit[4] that is not committed to the tree yet (but close too, IMO). [1] Link: https://github.com/leitao/liburing/blob/master/test/socket-io-cmd.c [2] Link: https://lore.kernel.org/lkml/20230406144330.1932798-1-leitao@xxxxxxxxxx/ [3] Link: https://lore.kernel.org/lkml/0a50fae3-1cf4-475e-48ae-25f41967842f@xxxxxxxxx/ [4] Link: https://lore.kernel.org/lkml/20230609152800.830401-1-leitao@xxxxxxxxxx/ V1->V2: * Rely on a generic socket->ioctl infrastructure instead of reimplementing it Breno Leitao (4): net: wire up support for file_operations->uring_cmd() net: add uring_cmd callback to UDP net: add uring_cmd callback to TCP net: add uring_cmd callback to raw "protocol" include/linux/net.h | 2 ++ include/net/raw.h | 3 +++ include/net/sock.h | 6 ++++++ include/net/tcp.h | 2 ++ include/net/udp.h | 2 ++ include/uapi/linux/net.h | 5 +++++ net/core/sock.c | 17 +++++++++++++++-- net/dccp/ipv4.c | 1 + net/ipv4/af_inet.c | 3 +++ net/ipv4/raw.c | 23 +++++++++++++++++++++++ net/ipv4/tcp.c | 21 +++++++++++++++++++++ net/ipv4/tcp_ipv4.c | 1 + net/ipv4/udp.c | 22 ++++++++++++++++++++++ net/l2tp/l2tp_ip.c | 1 + net/mptcp/protocol.c | 1 + net/sctp/protocol.c | 1 + net/socket.c | 13 +++++++++++++ 17 files changed, 122 insertions(+), 2 deletions(-) -- 2.34.1
