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4f6c66cc9c
Cumulative throughput while running 64 netperf -H $DUT -t UDP_STREAM -- -m 1 on a 2x8x2 SKL went from 1.1Mpps to 2.5Mpps Single stream throughput increases from 910kpps to 1.18Mpps Baseline: https://people.freebsd.org/~mmacy/2018.05.11/udpsender2.svg - Protect read access to global ifnet list with epoch https://people.freebsd.org/~mmacy/2018.05.11/udpsender3.svg - Protect short lived ifaddr references with epoch https://people.freebsd.org/~mmacy/2018.05.11/udpsender4.svg - Convert if_afdata read lock path to epoch https://people.freebsd.org/~mmacy/2018.05.11/udpsender5.svg A fix for the inpcbhash contention is pending sufficient time on a canary at LLNW. Reviewed by: gallatin Sponsored by: Limelight Networks Differential Revision: https://reviews.freebsd.org/D15409
96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/*-
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* Copyright (c) 2010 Isilon Systems, Inc.
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* Copyright (c) 2010 iX Systems, Inc.
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* Copyright (c) 2010 Panasas, Inc.
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* Copyright (c) 2013-2017 Mellanox Technologies, Ltd.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _LINUX_INETDEVICE_H_
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#define _LINUX_INETDEVICE_H_
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#include <linux/netdevice.h>
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static inline struct net_device *
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ip_dev_find(struct vnet *vnet, uint32_t addr)
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{
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struct sockaddr_in sin;
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struct ifaddr *ifa;
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struct ifnet *ifp;
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memset(&sin, 0, sizeof(sin));
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sin.sin_addr.s_addr = addr;
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sin.sin_len = sizeof(sin);
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sin.sin_family = AF_INET;
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NET_EPOCH_ENTER();
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CURVNET_SET_QUIET(vnet);
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ifa = ifa_ifwithaddr((struct sockaddr *)&sin);
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CURVNET_RESTORE();
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if (ifa) {
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ifp = ifa->ifa_ifp;
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if_ref(ifp);
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} else {
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ifp = NULL;
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}
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NET_EPOCH_EXIT();
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return (ifp);
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}
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static inline struct net_device *
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ip6_dev_find(struct vnet *vnet, struct in6_addr addr)
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{
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struct sockaddr_in6 sin6;
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struct ifaddr *ifa = NULL;
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struct ifnet *ifp = NULL;
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int x;
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memset(&sin6, 0, sizeof(sin6));
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sin6.sin6_addr = addr;
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sin6.sin6_len = sizeof(sin6);
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sin6.sin6_family = AF_INET6;
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NET_EPOCH_ENTER();
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CURVNET_SET_QUIET(vnet);
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if (IN6_IS_SCOPE_LINKLOCAL(&addr) ||
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IN6_IS_ADDR_MC_INTFACELOCAL(&addr)) {
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/* XXX need to search all scope ID's */
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for (x = 0; x <= V_if_index && x < 65536; x++) {
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sin6.sin6_addr.s6_addr16[1] = htons(x);
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ifa = ifa_ifwithaddr((struct sockaddr *)&sin6);
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if (ifa != NULL)
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break;
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}
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} else {
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ifa = ifa_ifwithaddr((struct sockaddr *)&sin6);
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}
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if (ifa != NULL) {
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ifp = ifa->ifa_ifp;
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if_ref(ifp);
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}
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NET_EPOCH_EXIT();
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CURVNET_RESTORE();
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return (ifp);
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}
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#endif /* _LINUX_INETDEVICE_H_ */
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