Commit c3bb0a6a authored by Jukka Rissanen's avatar Jukka Rissanen
Browse files

net: socket: Add SO_PRIORITY support to setsockopt 



Allow user to set the socket priority using setsockopt() call.
The priority value is used to order the networking queues so
that packets with a higher priority may be processed first.

Signed-off-by: default avatarJukka Rissanen <jukka.rissanen@linux.intel.com>
parent 10401415

include/net/socket.h

+3 −0
Original line number Diff line number Diff line
@@ -740,6 +740,9 @@ static inline char *inet_ntop(sa_family_t family, const void *src, char *dst, 
/** sockopt: Don't support IPv4 access (ignored, for compatibility) */

#define IPV6_V6ONLY 26



/** sockopt: Socket priority */

#define SO_PRIORITY 12



/** @cond INTERNAL_HIDDEN */

/**

 * @brief Registration information for a given BSD socket family.

subsys/net/lib/sockets/sockets.c

+16 −0
Original line number Diff line number Diff line
@@ -1116,6 +1116,8 @@ int zsock_getsockopt(int sock, int level, int optname, 
int zsock_setsockopt_ctx(struct net_context *ctx, int level, int optname,

			 const void *optval, socklen_t optlen)

{

	int ret;



	switch (level) {

	case SOL_SOCKET:

		switch (optname) {
@@ -1124,7 +1126,21 @@ int zsock_setsockopt_ctx(struct net_context *ctx, int level, int optname, 
			 * existing apps.

			 */

			return 0;



		case SO_PRIORITY:

			if (IS_ENABLED(CONFIG_NET_CONTEXT_PRIORITY)) {

				ret = net_context_set_option(ctx,

							     NET_OPT_PRIORITY,

							     optval, optlen);

				if (ret < 0) {

					errno = -ret;

					return -1;

				}



				return 0;

			}

		}



		break;



	case IPPROTO_TCP:

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