From b3f95490b9bec020314eb32016988ee262d52884 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sun, 29 Oct 2017 19:32:10 +0100 Subject: kernel: generic: Add kernel 4.14 support This adds initial support for kernel 4.14 based on the patches for kernel 4.9. In the configuration I deactivated some of the new possible security features like: CONFIG_REFCOUNT_FULL CONFIG_SLAB_FREELIST_HARDENED CONFIG_SOFTLOCKUP_DETECTOR CONFIG_WARN_ALL_UNSEEDED_RANDOM And these overlay FS options are also deactivated: CONFIG_OVERLAY_FS_INDEX CONFIG_OVERLAY_FS_REDIRECT_DIR I activated this: CONFIG_FORTIFY_SOURCE CONFIG_POSIX_TIMERS CONFIG_SLAB_MERGE_DEFAULT CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED I am not sure if I did the porting correct for the following patches: target/linux/generic/backport-4.14/020-backport_netfilter_rtcache.patch target/linux/generic/hack-4.14/220-gc_sections.patch target/linux/generic/hack-4.14/321-powerpc_crtsavres_prereq.patch target/linux/generic/pending-4.14/305-mips_module_reloc.patch target/linux/generic/pending-4.14/611-netfilter_match_bypass_default_table.patch target/linux/generic/pending-4.14/680-NET-skip-GRO-for-foreign-MAC-addresses.patch Signed-off-by: Hauke Mehrtens --- ...t-hardcode-path-to-awk-in-scripts-ld-vers.patch | 30 ++ .../backport-4.14/011-kbuild-export-SUBARCH.patch | 23 + .../020-backport_netfilter_rtcache.patch | 558 +++++++++++++++++++++ .../025-tcp-allow-drivers-to-tweak-TSQ-logic.patch | 85 ++++ ...nable-master-mode-for-BCM54210E-and-B5021.patch | 50 ++ ...adcom-support-new-device-flag-for-setting.patch | 54 ++ 6 files changed, 800 insertions(+) create mode 100644 target/linux/generic/backport-4.14/010-Kbuild-don-t-hardcode-path-to-awk-in-scripts-ld-vers.patch create mode 100644 target/linux/generic/backport-4.14/011-kbuild-export-SUBARCH.patch create mode 100644 target/linux/generic/backport-4.14/020-backport_netfilter_rtcache.patch create mode 100644 target/linux/generic/backport-4.14/025-tcp-allow-drivers-to-tweak-TSQ-logic.patch create mode 100644 target/linux/generic/backport-4.14/071-v4.15-0001-net-bgmac-enable-master-mode-for-BCM54210E-and-B5021.patch create mode 100644 target/linux/generic/backport-4.14/076-v4.15-0001-net-phy-broadcom-support-new-device-flag-for-setting.patch (limited to 'target/linux/generic/backport-4.14') diff --git a/target/linux/generic/backport-4.14/010-Kbuild-don-t-hardcode-path-to-awk-in-scripts-ld-vers.patch b/target/linux/generic/backport-4.14/010-Kbuild-don-t-hardcode-path-to-awk-in-scripts-ld-vers.patch new file mode 100644 index 0000000000..7ac4f9d240 --- /dev/null +++ b/target/linux/generic/backport-4.14/010-Kbuild-don-t-hardcode-path-to-awk-in-scripts-ld-vers.patch @@ -0,0 +1,30 @@ +From 13b1ecc3401653a355798eb1dee10cc1608202f4 Mon Sep 17 00:00:00 2001 +From: Felix Fietkau +Date: Mon, 18 Jan 2016 12:27:49 +0100 +Subject: [PATCH 33/34] Kbuild: don't hardcode path to awk in + scripts/ld-version.sh + +On some systems /usr/bin/awk does not exist, or is broken. Find it via +$PATH instead. + +Signed-off-by: Felix Fietkau +--- + scripts/ld-version.sh | 4 +++- + 1 file changed, 3 insertions(+), 1 deletion(-) + +--- a/scripts/ld-version.sh ++++ b/scripts/ld-version.sh +@@ -1,6 +1,7 @@ +-#!/usr/bin/awk -f ++#!/bin/sh + # SPDX-License-Identifier: GPL-2.0 + # extract linker version number from stdin and turn into single number ++exec awk ' + { + gsub(".*\\)", ""); + gsub(".*version ", ""); +@@ -9,3 +10,4 @@ + print a[1]*100000000 + a[2]*1000000 + a[3]*10000; + exit + } ++' diff --git a/target/linux/generic/backport-4.14/011-kbuild-export-SUBARCH.patch b/target/linux/generic/backport-4.14/011-kbuild-export-SUBARCH.patch new file mode 100644 index 0000000000..8966586729 --- /dev/null +++ b/target/linux/generic/backport-4.14/011-kbuild-export-SUBARCH.patch @@ -0,0 +1,23 @@ +From 173019b66dcc9d68ad9333aa744dad1e369b5aa8 Mon Sep 17 00:00:00 2001 +From: Felix Fietkau +Date: Sun, 9 Jul 2017 00:26:53 +0200 +Subject: [PATCH 34/34] kernel: add compile fix for linux 4.9 on x86 + +Signed-off-by: Felix Fietkau +--- + Makefile | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +--- a/Makefile ++++ b/Makefile +@@ -415,8 +415,8 @@ KERNELRELEASE = $(shell cat include/conf + KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) + + export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION +-export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC +-export CPP AR NM STRIP OBJCOPY OBJDUMP HOSTLDFLAGS HOST_LOADLIBES ++export ARCH SRCARCH SUBARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD ++export CC CPP AR NM STRIP OBJCOPY OBJDUMP HOSTLDFLAGS HOST_LOADLIBES + export MAKE AWK GENKSYMS INSTALLKERNEL PERL PYTHON UTS_MACHINE + export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS + diff --git a/target/linux/generic/backport-4.14/020-backport_netfilter_rtcache.patch b/target/linux/generic/backport-4.14/020-backport_netfilter_rtcache.patch new file mode 100644 index 0000000000..8a6fba4307 --- /dev/null +++ b/target/linux/generic/backport-4.14/020-backport_netfilter_rtcache.patch @@ -0,0 +1,558 @@ +From 1bb0c3ec899827cfa4668bb63a08713a40744d21 Mon Sep 17 00:00:00 2001 +From: Florian Westphal +Date: Sun, 9 Jul 2017 08:58:30 +0200 +Subject: [PATCH] netfilter: conntrack: cache route for forwarded connections + +... to avoid per-packet FIB lookup if possible. + +The cached dst is re-used provided the input interface +is the same as that of the previous packet in the same direction. + +If not, the cached dst is invalidated. + +For ipv6 we also need to store sernum, else dst_check doesn't work, +pointed out by Eric Dumazet. + +This should speed up forwarding when conntrack is already in use +anyway, especially when using reverse path filtering -- active RPF +enforces two FIB lookups for each packet. + +Before the routing cache removal this didn't matter since RPF was performed +only when route cache didn't yield a result; but without route cache it +comes at higher price. + +Julian Anastasov suggested to add NETDEV_UNREGISTER handler to +avoid holding on to dsts of 'frozen' conntracks. + +Signed-off-by: Florian Westphal +--- + include/net/netfilter/nf_conntrack_extend.h | 4 + + include/net/netfilter/nf_conntrack_rtcache.h | 34 +++ + net/netfilter/Kconfig | 12 + + net/netfilter/Makefile | 3 + + net/netfilter/nf_conntrack_rtcache.c | 428 +++++++++++++++++++++++++++ + 5 files changed, 481 insertions(+) + create mode 100644 include/net/netfilter/nf_conntrack_rtcache.h + create mode 100644 net/netfilter/nf_conntrack_rtcache.c + +--- a/include/net/netfilter/nf_conntrack_extend.h ++++ b/include/net/netfilter/nf_conntrack_extend.h +@@ -28,6 +28,9 @@ enum nf_ct_ext_id { + #if IS_ENABLED(CONFIG_NETFILTER_SYNPROXY) + NF_CT_EXT_SYNPROXY, + #endif ++#if IS_ENABLED(CONFIG_NF_CONNTRACK_RTCACHE) ++ NF_CT_EXT_RTCACHE, ++#endif + NF_CT_EXT_NUM, + }; + +@@ -40,6 +43,7 @@ enum nf_ct_ext_id { + #define NF_CT_EXT_TIMEOUT_TYPE struct nf_conn_timeout + #define NF_CT_EXT_LABELS_TYPE struct nf_conn_labels + #define NF_CT_EXT_SYNPROXY_TYPE struct nf_conn_synproxy ++#define NF_CT_EXT_RTCACHE_TYPE struct nf_conn_rtcache + + /* Extensions: optional stuff which isn't permanently in struct. */ + struct nf_ct_ext { +--- /dev/null ++++ b/include/net/netfilter/nf_conntrack_rtcache.h +@@ -0,0 +1,34 @@ ++#include ++#include ++#include ++ ++struct dst_entry; ++ ++struct nf_conn_dst_cache { ++ struct dst_entry *dst; ++ int iif; ++#if IS_ENABLED(CONFIG_NF_CONNTRACK_IPV6) ++ u32 cookie; ++#endif ++ ++}; ++ ++struct nf_conn_rtcache { ++ struct nf_conn_dst_cache cached_dst[IP_CT_DIR_MAX]; ++}; ++ ++static inline ++struct nf_conn_rtcache *nf_ct_rtcache_find(const struct nf_conn *ct) ++{ ++#if IS_ENABLED(CONFIG_NF_CONNTRACK_RTCACHE) ++ return nf_ct_ext_find(ct, NF_CT_EXT_RTCACHE); ++#else ++ return NULL; ++#endif ++} ++ ++static inline int nf_conn_rtcache_iif_get(const struct nf_conn_rtcache *rtc, ++ enum ip_conntrack_dir dir) ++{ ++ return rtc->cached_dst[dir].iif; ++} +--- a/net/netfilter/Kconfig ++++ b/net/netfilter/Kconfig +@@ -118,6 +118,18 @@ config NF_CONNTRACK_EVENTS + + If unsure, say `N'. + ++config NF_CONNTRACK_RTCACHE ++ tristate "Cache route entries in conntrack objects" ++ depends on NETFILTER_ADVANCED ++ depends on NF_CONNTRACK ++ help ++ If this option is enabled, the connection tracking code will ++ cache routing information for each connection that is being ++ forwarded, at a cost of 32 bytes per conntrack object. ++ ++ To compile it as a module, choose M here. If unsure, say N. ++ The module will be called nf_conntrack_rtcache. ++ + config NF_CONNTRACK_TIMEOUT + bool 'Connection tracking timeout' + depends on NETFILTER_ADVANCED +--- a/net/netfilter/Makefile ++++ b/net/netfilter/Makefile +@@ -19,6 +19,9 @@ obj-$(CONFIG_NETFILTER_NETLINK_LOG) += n + # connection tracking + obj-$(CONFIG_NF_CONNTRACK) += nf_conntrack.o + ++# optional conntrack route cache extension ++obj-$(CONFIG_NF_CONNTRACK_RTCACHE) += nf_conntrack_rtcache.o ++ + obj-$(CONFIG_NF_CT_PROTO_GRE) += nf_conntrack_proto_gre.o + + # netlink interface for nf_conntrack +--- /dev/null ++++ b/net/netfilter/nf_conntrack_rtcache.c +@@ -0,0 +1,428 @@ ++/* route cache for netfilter. ++ * ++ * (C) 2014 Red Hat GmbH ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++ ++#include ++#include ++#include ++#include ++ ++#if IS_ENABLED(CONFIG_NF_CONNTRACK_IPV6) ++#include ++#endif ++ ++static void __nf_conn_rtcache_destroy(struct nf_conn_rtcache *rtc, ++ enum ip_conntrack_dir dir) ++{ ++ struct dst_entry *dst = rtc->cached_dst[dir].dst; ++ ++ dst_release(dst); ++} ++ ++static void nf_conn_rtcache_destroy(struct nf_conn *ct) ++{ ++ struct nf_conn_rtcache *rtc = nf_ct_rtcache_find(ct); ++ ++ if (!rtc) ++ return; ++ ++ __nf_conn_rtcache_destroy(rtc, IP_CT_DIR_ORIGINAL); ++ __nf_conn_rtcache_destroy(rtc, IP_CT_DIR_REPLY); ++} ++ ++static void nf_ct_rtcache_ext_add(struct nf_conn *ct) ++{ ++ struct nf_conn_rtcache *rtc; ++ ++ rtc = nf_ct_ext_add(ct, NF_CT_EXT_RTCACHE, GFP_ATOMIC); ++ if (rtc) { ++ rtc->cached_dst[IP_CT_DIR_ORIGINAL].iif = -1; ++ rtc->cached_dst[IP_CT_DIR_ORIGINAL].dst = NULL; ++ rtc->cached_dst[IP_CT_DIR_REPLY].iif = -1; ++ rtc->cached_dst[IP_CT_DIR_REPLY].dst = NULL; ++ } ++} ++ ++static struct nf_conn_rtcache *nf_ct_rtcache_find_usable(struct nf_conn *ct) ++{ ++ return nf_ct_rtcache_find(ct); ++} ++ ++static struct dst_entry * ++nf_conn_rtcache_dst_get(const struct nf_conn_rtcache *rtc, ++ enum ip_conntrack_dir dir) ++{ ++ return rtc->cached_dst[dir].dst; ++} ++ ++static u32 nf_rtcache_get_cookie(int pf, const struct dst_entry *dst) ++{ ++#if IS_ENABLED(CONFIG_NF_CONNTRACK_IPV6) ++ if (pf == NFPROTO_IPV6) { ++ const struct rt6_info *rt = (const struct rt6_info *)dst; ++ ++ if (rt->rt6i_node) ++ return (u32)rt->rt6i_node->fn_sernum; ++ } ++#endif ++ return 0; ++} ++ ++static void nf_conn_rtcache_dst_set(int pf, ++ struct nf_conn_rtcache *rtc, ++ struct dst_entry *dst, ++ enum ip_conntrack_dir dir, int iif) ++{ ++ if (rtc->cached_dst[dir].iif != iif) ++ rtc->cached_dst[dir].iif = iif; ++ ++ if (rtc->cached_dst[dir].dst != dst) { ++ struct dst_entry *old; ++ ++ dst_hold(dst); ++ ++ old = xchg(&rtc->cached_dst[dir].dst, dst); ++ dst_release(old); ++ ++#if IS_ENABLED(CONFIG_NF_CONNTRACK_IPV6) ++ if (pf == NFPROTO_IPV6) ++ rtc->cached_dst[dir].cookie = ++ nf_rtcache_get_cookie(pf, dst); ++#endif ++ } ++} ++ ++static void nf_conn_rtcache_dst_obsolete(struct nf_conn_rtcache *rtc, ++ enum ip_conntrack_dir dir) ++{ ++ struct dst_entry *old; ++ ++ pr_debug("Invalidate iif %d for dir %d on cache %p\n", ++ rtc->cached_dst[dir].iif, dir, rtc); ++ ++ old = xchg(&rtc->cached_dst[dir].dst, NULL); ++ dst_release(old); ++ rtc->cached_dst[dir].iif = -1; ++} ++ ++static unsigned int nf_rtcache_in(u_int8_t pf, ++ struct sk_buff *skb, ++ const struct nf_hook_state *state) ++{ ++ struct nf_conn_rtcache *rtc; ++ enum ip_conntrack_info ctinfo; ++ enum ip_conntrack_dir dir; ++ struct dst_entry *dst; ++ struct nf_conn *ct; ++ int iif; ++ u32 cookie; ++ ++ if (skb_dst(skb) || skb->sk) ++ return NF_ACCEPT; ++ ++ ct = nf_ct_get(skb, &ctinfo); ++ if (!ct) ++ return NF_ACCEPT; ++ ++ rtc = nf_ct_rtcache_find_usable(ct); ++ if (!rtc) ++ return NF_ACCEPT; ++ ++ /* if iif changes, don't use cache and let ip stack ++ * do route lookup. ++ * ++ * If rp_filter is enabled it might toss skb, so ++ * we don't want to avoid these checks. ++ */ ++ dir = CTINFO2DIR(ctinfo); ++ iif = nf_conn_rtcache_iif_get(rtc, dir); ++ if (state->in->ifindex != iif) { ++ pr_debug("ct %p, iif %d, cached iif %d, skip cached entry\n", ++ ct, iif, state->in->ifindex); ++ return NF_ACCEPT; ++ } ++ dst = nf_conn_rtcache_dst_get(rtc, dir); ++ if (dst == NULL) ++ return NF_ACCEPT; ++ ++ cookie = nf_rtcache_get_cookie(pf, dst); ++ ++ dst = dst_check(dst, cookie); ++ pr_debug("obtained dst %p for skb %p, cookie %d\n", dst, skb, cookie); ++ if (likely(dst)) ++ skb_dst_set_noref(skb, dst); ++ else ++ nf_conn_rtcache_dst_obsolete(rtc, dir); ++ ++ return NF_ACCEPT; ++} ++ ++static unsigned int nf_rtcache_forward(u_int8_t pf, ++ struct sk_buff *skb, ++ const struct nf_hook_state *state) ++{ ++ struct nf_conn_rtcache *rtc; ++ enum ip_conntrack_info ctinfo; ++ enum ip_conntrack_dir dir; ++ struct nf_conn *ct; ++ struct dst_entry *dst = skb_dst(skb); ++ int iif; ++ ++ ct = nf_ct_get(skb, &ctinfo); ++ if (!ct) ++ return NF_ACCEPT; ++ ++ if (dst && dst_xfrm(dst)) ++ return NF_ACCEPT; ++ ++ if (!nf_ct_is_confirmed(ct)) { ++ if (WARN_ON(nf_ct_rtcache_find(ct))) ++ return NF_ACCEPT; ++ nf_ct_rtcache_ext_add(ct); ++ return NF_ACCEPT; ++ } ++ ++ rtc = nf_ct_rtcache_find_usable(ct); ++ if (!rtc) ++ return NF_ACCEPT; ++ ++ dir = CTINFO2DIR(ctinfo); ++ iif = nf_conn_rtcache_iif_get(rtc, dir); ++ pr_debug("ct %p, skb %p, dir %d, iif %d, cached iif %d\n", ++ ct, skb, dir, iif, state->in->ifindex); ++ if (likely(state->in->ifindex == iif)) ++ return NF_ACCEPT; ++ ++ nf_conn_rtcache_dst_set(pf, rtc, skb_dst(skb), dir, state->in->ifindex); ++ return NF_ACCEPT; ++} ++ ++static unsigned int nf_rtcache_in4(void *priv, ++ struct sk_buff *skb, ++ const struct nf_hook_state *state) ++{ ++ return nf_rtcache_in(NFPROTO_IPV4, skb, state); ++} ++ ++static unsigned int nf_rtcache_forward4(void *priv, ++ struct sk_buff *skb, ++ const struct nf_hook_state *state) ++{ ++ return nf_rtcache_forward(NFPROTO_IPV4, skb, state); ++} ++ ++#if IS_ENABLED(CONFIG_NF_CONNTRACK_IPV6) ++static unsigned int nf_rtcache_in6(void *priv, ++ struct sk_buff *skb, ++ const struct nf_hook_state *state) ++{ ++ return nf_rtcache_in(NFPROTO_IPV6, skb, state); ++} ++ ++static unsigned int nf_rtcache_forward6(void *priv, ++ struct sk_buff *skb, ++ const struct nf_hook_state *state) ++{ ++ return nf_rtcache_forward(NFPROTO_IPV6, skb, state); ++} ++#endif ++ ++static int nf_rtcache_dst_remove(struct nf_conn *ct, void *data) ++{ ++ struct nf_conn_rtcache *rtc = nf_ct_rtcache_find(ct); ++ struct net_device *dev = data; ++ ++ if (!rtc) ++ return 0; ++ ++ if (dev->ifindex == rtc->cached_dst[IP_CT_DIR_ORIGINAL].iif || ++ dev->ifindex == rtc->cached_dst[IP_CT_DIR_REPLY].iif) { ++ nf_conn_rtcache_dst_obsolete(rtc, IP_CT_DIR_ORIGINAL); ++ nf_conn_rtcache_dst_obsolete(rtc, IP_CT_DIR_REPLY); ++ } ++ ++ return 0; ++} ++ ++static int nf_rtcache_netdev_event(struct notifier_block *this, ++ unsigned long event, void *ptr) ++{ ++ struct net_device *dev = netdev_notifier_info_to_dev(ptr); ++ struct net *net = dev_net(dev); ++ ++ if (event == NETDEV_DOWN) ++ nf_ct_iterate_cleanup_net(net, nf_rtcache_dst_remove, dev, 0, 0); ++ ++ return NOTIFY_DONE; ++} ++ ++static struct notifier_block nf_rtcache_notifier = { ++ .notifier_call = nf_rtcache_netdev_event, ++}; ++ ++static struct nf_hook_ops rtcache_ops[] = { ++ { ++ .hook = nf_rtcache_in4, ++ .pf = NFPROTO_IPV4, ++ .hooknum = NF_INET_PRE_ROUTING, ++ .priority = NF_IP_PRI_LAST, ++ }, ++ { ++ .hook = nf_rtcache_forward4, ++ .pf = NFPROTO_IPV4, ++ .hooknum = NF_INET_FORWARD, ++ .priority = NF_IP_PRI_LAST, ++ }, ++#if IS_ENABLED(CONFIG_NF_CONNTRACK_IPV6) ++ { ++ .hook = nf_rtcache_in6, ++ .pf = NFPROTO_IPV6, ++ .hooknum = NF_INET_PRE_ROUTING, ++ .priority = NF_IP_PRI_LAST, ++ }, ++ { ++ .hook = nf_rtcache_forward6, ++ .pf = NFPROTO_IPV6, ++ .hooknum = NF_INET_FORWARD, ++ .priority = NF_IP_PRI_LAST, ++ }, ++#endif ++}; ++ ++static struct nf_ct_ext_type rtcache_extend __read_mostly = { ++ .len = sizeof(struct nf_conn_rtcache), ++ .align = __alignof__(struct nf_conn_rtcache), ++ .id = NF_CT_EXT_RTCACHE, ++ .destroy = nf_conn_rtcache_destroy, ++}; ++ ++static void __net_exit rtcache_net_exit(struct net *net) ++{ ++ /* remove hooks so no new connections get rtcache extension */ ++ nf_unregister_net_hooks(net, rtcache_ops, ARRAY_SIZE(rtcache_ops)); ++} ++ ++static struct pernet_operations rtcache_ops_net_ops = { ++ .exit = rtcache_net_exit, ++}; ++ ++static int __init nf_conntrack_rtcache_init(void) ++{ ++ int ret = nf_ct_extend_register(&rtcache_extend); ++ ++ if (ret < 0) { ++ pr_err("nf_conntrack_rtcache: Unable to register extension\n"); ++ return ret; ++ } ++ ++ ret = register_pernet_subsys(&rtcache_ops_net_ops); ++ if (ret) { ++ nf_ct_extend_unregister(&rtcache_extend); ++ return ret; ++ } ++ ++ ret = nf_register_net_hooks(&init_net, rtcache_ops, ++ ARRAY_SIZE(rtcache_ops)); ++ if (ret < 0) { ++ nf_ct_extend_unregister(&rtcache_extend); ++ unregister_pernet_subsys(&rtcache_ops_net_ops); ++ return ret; ++ } ++ ++ ret = register_netdevice_notifier(&nf_rtcache_notifier); ++ if (ret) { ++ nf_unregister_net_hooks(&init_net, rtcache_ops, ++ ARRAY_SIZE(rtcache_ops)); ++ nf_ct_extend_unregister(&rtcache_extend); ++ unregister_pernet_subsys(&rtcache_ops_net_ops); ++ } ++ ++ return ret; ++} ++ ++static int nf_rtcache_ext_remove(struct nf_conn *ct, void *data) ++{ ++ struct nf_conn_rtcache *rtc = nf_ct_rtcache_find(ct); ++ ++ return rtc != NULL; ++} ++ ++static bool __exit nf_conntrack_rtcache_wait_for_dying(struct net *net) ++{ ++ bool wait = false; ++ int cpu; ++ ++ for_each_possible_cpu(cpu) { ++ struct nf_conntrack_tuple_hash *h; ++ struct hlist_nulls_node *n; ++ struct nf_conn *ct; ++ struct ct_pcpu *pcpu = per_cpu_ptr(net->ct.pcpu_lists, cpu); ++ ++ rcu_read_lock(); ++ spin_lock_bh(&pcpu->lock); ++ ++ hlist_nulls_for_each_entry(h, n, &pcpu->dying, hnnode) { ++ ct = nf_ct_tuplehash_to_ctrack(h); ++ if (nf_ct_rtcache_find(ct) != NULL) { ++ wait = true; ++ break; ++ } ++ } ++ spin_unlock_bh(&pcpu->lock); ++ rcu_read_unlock(); ++ } ++ ++ return wait; ++} ++ ++static void __exit nf_conntrack_rtcache_fini(void) ++{ ++ struct net *net; ++ int count = 0; ++ ++ synchronize_net(); ++ ++ unregister_netdevice_notifier(&nf_rtcache_notifier); ++ ++ rtnl_lock(); ++ ++ /* zap all conntracks with rtcache extension */ ++ for_each_net(net) ++ nf_ct_iterate_cleanup_net(net, nf_rtcache_ext_remove, NULL, 0, 0); ++ ++ for_each_net(net) { ++ /* .. and make sure they're gone from dying list, too */ ++ while (nf_conntrack_rtcache_wait_for_dying(net)) { ++ msleep(200); ++ WARN_ONCE(++count > 25, "Waiting for all rtcache conntracks to go away\n"); ++ } ++ } ++ ++ rtnl_unlock(); ++ synchronize_net(); ++ nf_ct_extend_unregister(&rtcache_extend); ++} ++module_init(nf_conntrack_rtcache_init); ++module_exit(nf_conntrack_rtcache_fini); ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Florian Westphal "); ++MODULE_DESCRIPTION("Conntrack route cache extension"); diff --git a/target/linux/generic/backport-4.14/025-tcp-allow-drivers-to-tweak-TSQ-logic.patch b/target/linux/generic/backport-4.14/025-tcp-allow-drivers-to-tweak-TSQ-logic.patch new file mode 100644 index 0000000000..0c57f2e337 --- /dev/null +++ b/target/linux/generic/backport-4.14/025-tcp-allow-drivers-to-tweak-TSQ-logic.patch @@ -0,0 +1,85 @@ +From: Eric Dumazet +Date: Sat, 11 Nov 2017 15:54:12 -0800 +Subject: [PATCH] tcp: allow drivers to tweak TSQ logic +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +I had many reports that TSQ logic breaks wifi aggregation. + +Current logic is to allow up to 1 ms of bytes to be queued into qdisc +and drivers queues. + +But Wifi aggregation needs a bigger budget to allow bigger rates to +be discovered by various TCP Congestion Controls algorithms. + +This patch adds an extra socket field, allowing wifi drivers to select +another log scale to derive TCP Small Queue credit from current pacing +rate. + +Initial value is 10, meaning that this patch does not change current +behavior. + +We expect wifi drivers to set this field to smaller values (tests have +been done with values from 6 to 9) + +They would have to use following template : + +if (skb->sk && skb->sk->sk_pacing_shift != MY_PACING_SHIFT) + skb->sk->sk_pacing_shift = MY_PACING_SHIFT; + +Ref: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1670041 +Signed-off-by: Eric Dumazet +Cc: Johannes Berg +Cc: Toke Høiland-Jørgensen +Cc: Kir Kolyshkin +--- +--- a/include/net/sock.h ++++ b/include/net/sock.h +@@ -267,6 +267,7 @@ struct sock_common { + * @sk_gso_type: GSO type (e.g. %SKB_GSO_TCPV4) + * @sk_gso_max_size: Maximum GSO segment size to build + * @sk_gso_max_segs: Maximum number of GSO segments ++ * @sk_pacing_shift: scaling factor for TCP Small Queues + * @sk_lingertime: %SO_LINGER l_linger setting + * @sk_backlog: always used with the per-socket spinlock held + * @sk_callback_lock: used with the callbacks in the end of this struct +@@ -448,6 +449,8 @@ struct sock { + kmemcheck_bitfield_end(flags); + + u16 sk_gso_max_segs; ++#define sk_pacing_shift sk_pacing_shift /* for backport checks */ ++ u8 sk_pacing_shift; + unsigned long sk_lingertime; + struct proto *sk_prot_creator; + rwlock_t sk_callback_lock; +--- a/net/core/sock.c ++++ b/net/core/sock.c +@@ -2744,6 +2744,7 @@ void sock_init_data(struct socket *sock, + + sk->sk_max_pacing_rate = ~0U; + sk->sk_pacing_rate = ~0U; ++ sk->sk_pacing_shift = 10; + sk->sk_incoming_cpu = -1; + /* + * Before updating sk_refcnt, we must commit prior changes to memory +--- a/net/ipv4/tcp_output.c ++++ b/net/ipv4/tcp_output.c +@@ -1671,7 +1671,7 @@ u32 tcp_tso_autosize(const struct sock * + { + u32 bytes, segs; + +- bytes = min(sk->sk_pacing_rate >> 10, ++ bytes = min(sk->sk_pacing_rate >> sk->sk_pacing_shift, + sk->sk_gso_max_size - 1 - MAX_TCP_HEADER); + + /* Goal is to send at least one packet per ms, +@@ -2145,7 +2145,7 @@ static bool tcp_small_queue_check(struct + { + unsigned int limit; + +- limit = max(2 * skb->truesize, sk->sk_pacing_rate >> 10); ++ limit = max(2 * skb->truesize, sk->sk_pacing_rate >> sk->sk_pacing_shift); + limit = min_t(u32, limit, sysctl_tcp_limit_output_bytes); + limit <<= factor; + diff --git a/target/linux/generic/backport-4.14/071-v4.15-0001-net-bgmac-enable-master-mode-for-BCM54210E-and-B5021.patch b/target/linux/generic/backport-4.14/071-v4.15-0001-net-bgmac-enable-master-mode-for-BCM54210E-and-B5021.patch new file mode 100644 index 0000000000..db239e0a00 --- /dev/null +++ b/target/linux/generic/backport-4.14/071-v4.15-0001-net-bgmac-enable-master-mode-for-BCM54210E-and-B5021.patch @@ -0,0 +1,50 @@ +From 12acd136913ccdf394eeb2bc8686ff5505368119 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= +Date: Thu, 12 Oct 2017 10:21:26 +0200 +Subject: [PATCH] net: bgmac: enable master mode for BCM54210E and B50212E PHYs +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +There are 4 very similar PHYs: +0x600d84a1: BCM54210E (rev B0) +0x600d84a2: BCM54210E (rev B1) +0x600d84a5: B50212E (rev B0) +0x600d84a6: B50212E (rev B1) +that need setting master mode manually. It's because they run in slave +mode by default with Automatic Slave/Master configuration disabled which +can lead to unreliable connection with massive ping loss. + +So far it was reported for a board with BCM47189 SoC and B50212E B1 PHY +connected to the bgmac supported ethernet device. Telling PHY driver to +setup PHY properly solves this issue. + +Signed-off-by: Rafał Miłecki +Signed-off-by: David S. Miller +--- + drivers/net/ethernet/broadcom/bgmac-bcma.c | 8 +++++++- + 1 file changed, 7 insertions(+), 1 deletion(-) + +--- a/drivers/net/ethernet/broadcom/bgmac-bcma.c ++++ b/drivers/net/ethernet/broadcom/bgmac-bcma.c +@@ -184,13 +184,19 @@ static int bgmac_probe(struct bcma_devic + + if (!bgmac_is_bcm4707_family(core) && + !(ci->id == BCMA_CHIP_ID_BCM53573 && core->core_unit == 1)) { ++ struct phy_device *phydev; ++ + mii_bus = bcma_mdio_mii_register(bgmac); + if (IS_ERR(mii_bus)) { + err = PTR_ERR(mii_bus); + goto err; + } +- + bgmac->mii_bus = mii_bus; ++ ++ phydev = mdiobus_get_phy(bgmac->mii_bus, bgmac->phyaddr); ++ if (ci->id == BCMA_CHIP_ID_BCM53573 && phydev && ++ (phydev->drv->phy_id & phydev->drv->phy_id_mask) == PHY_ID_BCM54210E) ++ phydev->dev_flags |= PHY_BRCM_EN_MASTER_MODE; + } + + if (core->bus->hosttype == BCMA_HOSTTYPE_PCI) { diff --git a/target/linux/generic/backport-4.14/076-v4.15-0001-net-phy-broadcom-support-new-device-flag-for-setting.patch b/target/linux/generic/backport-4.14/076-v4.15-0001-net-phy-broadcom-support-new-device-flag-for-setting.patch new file mode 100644 index 0000000000..a22d272656 --- /dev/null +++ b/target/linux/generic/backport-4.14/076-v4.15-0001-net-phy-broadcom-support-new-device-flag-for-setting.patch @@ -0,0 +1,54 @@ +From 2355a6546a053b1c16ebefd6ce1f0cccc00e1da5 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= +Date: Thu, 12 Oct 2017 10:21:25 +0200 +Subject: [PATCH] net: phy: broadcom: support new device flag for setting + master mode +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Some of Broadcom's PHYs run by default in slave mode with Automatic +Slave/Master configuration disabled. It stops them from working properly +with some devices. + +So far it has been verified for BCM54210E and BCM50212E which don't +work well with Intel's I217-LM and I218-LM: +http://ark.intel.com/products/60019/Intel-Ethernet-Connection-I217-LM +http://ark.intel.com/products/71307/Intel-Ethernet-Connection-I218-LM +I was told there is massive ping loss. + +This commit adds support for a new flag which can be set by an ethernet +driver to fixup PHY setup. + +Signed-off-by: Rafał Miłecki +Signed-off-by: David S. Miller +--- + drivers/net/phy/broadcom.c | 6 ++++++ + include/linux/brcmphy.h | 1 + + 2 files changed, 7 insertions(+) + +--- a/drivers/net/phy/broadcom.c ++++ b/drivers/net/phy/broadcom.c +@@ -43,6 +43,12 @@ static int bcm54210e_config_init(struct + val &= ~BCM54810_SHD_CLK_CTL_GTXCLK_EN; + bcm_phy_write_shadow(phydev, BCM54810_SHD_CLK_CTL, val); + ++ if (phydev->dev_flags & PHY_BRCM_EN_MASTER_MODE) { ++ val = phy_read(phydev, MII_CTRL1000); ++ val |= CTL1000_AS_MASTER | CTL1000_ENABLE_MASTER; ++ phy_write(phydev, MII_CTRL1000, val); ++ } ++ + return 0; + } + +--- a/include/linux/brcmphy.h ++++ b/include/linux/brcmphy.h +@@ -64,6 +64,7 @@ + #define PHY_BRCM_EXT_IBND_TX_ENABLE 0x00002000 + #define PHY_BRCM_CLEAR_RGMII_MODE 0x00004000 + #define PHY_BRCM_DIS_TXCRXC_NOENRGY 0x00008000 ++#define PHY_BRCM_EN_MASTER_MODE 0x00010000 + + /* Broadcom BCM7xxx specific workarounds */ + #define PHY_BRCM_7XXX_REV(x) (((x) >> 8) & 0xff) -- cgit v1.2.3