Date: Tue, 29 Dec 2020 16:35:28 GMT From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 19ecb5e8dabe - main - Fix for IPoIB over lagg(4). Message-ID: <202012291635.0BTGZSfP034519@gitrepo.freebsd.org>
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The branch main has been updated by hselasky: URL: https://cgit.FreeBSD.org/src/commit/?id=19ecb5e8dabe9342a573ca3d3e1a80435f4d0123 commit 19ecb5e8dabe9342a573ca3d3e1a80435f4d0123 Author: Hans Petter Selasky <hselasky@FreeBSD.org> AuthorDate: 2020-12-29 16:34:01 +0000 Commit: Hans Petter Selasky <hselasky@FreeBSD.org> CommitDate: 2020-12-29 16:35:06 +0000 Fix for IPoIB over lagg(4). Need to update both link layer address and broadcast address when active link changes for IP over infiniband. This is because the broadcast address contains the so-called P-key, which is interface dependent. Reviewed by: kib @ Differential Revision: https://reviews.freebsd.org/D27658 MFC after: 1 week Sponsored by: Mellanox Technologies // NVIDIA Networking --- sys/net/if_lagg.c | 12 +++++------- sys/net/if_lagg.h | 5 +++-- 2 files changed, 8 insertions(+), 9 deletions(-) diff --git a/sys/net/if_lagg.c b/sys/net/if_lagg.c index 304bfa7bfe50..3144f86901b2 100644 --- a/sys/net/if_lagg.c +++ b/sys/net/if_lagg.c @@ -511,11 +511,6 @@ lagg_clone_create(struct if_clone *ifc, int unit, caddr_t params) int if_type; int error; static const uint8_t eaddr[LAGG_ADDR_LEN]; - static const uint8_t ib_bcast_addr[INFINIBAND_ADDR_LEN] = { - 0x00, 0xff, 0xff, 0xff, - 0xff, 0x12, 0x40, 0x1b, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff - }; if (params != NULL) { error = copyin(params, &iflp, sizeof(iflp)); @@ -603,7 +598,7 @@ lagg_clone_create(struct if_clone *ifc, int unit, caddr_t params) ether_ifattach(ifp, eaddr); break; case IFT_INFINIBAND: - infiniband_ifattach(ifp, eaddr, ib_bcast_addr); + infiniband_ifattach(ifp, eaddr, sc->sc_bcast_addr); break; default: break; @@ -1239,8 +1234,11 @@ lagg_watchdog_infiniband(void *arg) lp_ifp = lp->lp_ifp; if (ifp != NULL && lp_ifp != NULL && - memcmp(IF_LLADDR(ifp), IF_LLADDR(lp_ifp), ifp->if_addrlen) != 0) { + (memcmp(IF_LLADDR(ifp), IF_LLADDR(lp_ifp), ifp->if_addrlen) != 0 || + memcmp(sc->sc_bcast_addr, lp_ifp->if_broadcastaddr, ifp->if_addrlen) != 0)) { memcpy(IF_LLADDR(ifp), IF_LLADDR(lp_ifp), ifp->if_addrlen); + memcpy(sc->sc_bcast_addr, lp_ifp->if_broadcastaddr, ifp->if_addrlen); + CURVNET_SET(ifp->if_vnet); EVENTHANDLER_INVOKE(iflladdr_event, ifp); CURVNET_RESTORE(); diff --git a/sys/net/if_lagg.h b/sys/net/if_lagg.h index fc3e782d4444..94f3487af6f7 100644 --- a/sys/net/if_lagg.h +++ b/sys/net/if_lagg.h @@ -258,13 +258,14 @@ struct lagg_softc { int flowid_shift; /* shift the flowid */ struct lagg_counters detached_counters; /* detached ports sum */ struct callout sc_watchdog; /* watchdog timer */ +#define LAGG_ADDR_LEN \ + MAX(INFINIBAND_ADDR_LEN, ETHER_ADDR_LEN) + uint8_t sc_bcast_addr[LAGG_ADDR_LEN]; }; struct lagg_port { struct ifnet *lp_ifp; /* physical interface */ struct lagg_softc *lp_softc; /* parent lagg */ -#define LAGG_ADDR_LEN \ - MAX(INFINIBAND_ADDR_LEN, ETHER_ADDR_LEN) uint8_t lp_lladdr[LAGG_ADDR_LEN]; u_char lp_iftype; /* interface type */
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