diff options
Diffstat (limited to 'patches/ovs/0001-Add-Linux-4.4-support.patch')
| -rw-r--r-- | patches/ovs/0001-Add-Linux-4.4-support.patch | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/patches/ovs/0001-Add-Linux-4.4-support.patch b/patches/ovs/0001-Add-Linux-4.4-support.patch new file mode 100644 index 000000000..a580bc267 --- /dev/null +++ b/patches/ovs/0001-Add-Linux-4.4-support.patch @@ -0,0 +1,246 @@ +From a4c2305b6190ce24ceaafb9f85fc5a67787fb71d Mon Sep 17 00:00:00 2001 +From: Donald Dugger <n0ano@n0ano.com> +Date: Mon, 9 May 2016 05:14:12 +0000 +Subject: [PATCH] Add Linux 4.4 support + +A bit cleaner than my previous patch. + http://patchwork.ozlabs.org/patch/595969/ + +Though I couldn't figure out a clean solution for ip6_local_out(), +genl_notify(), and vport-vxlan + +Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com> + +Note that this patch has been rejected for the upstream OVS tree as +the maintainers feel a different apporach (backporting all Linux +patches that affect the OVS code). We'll just use this patch until +the official OVS tree is updated to support Linux 4.4. + +Upstream status: NA + +Signed-off-by: Don Dugger <n0ano@n0ano.com> +--- + acinclude.m4 | 4 ++-- + datapath/actions.c | 6 ++++-- + datapath/datapath.c | 6 +++++- + datapath/linux/compat/include/linux/netfilter_ipv6.h | 2 +- + datapath/linux/compat/include/net/ip.h | 19 ++++++++++++++++--- + datapath/linux/compat/include/net/ip6_tunnel.h | 4 ++++ + datapath/linux/compat/include/net/vxlan.h | 10 ++++++++++ + datapath/linux/compat/stt.c | 6 ++++++ + datapath/vport-vxlan.c | 5 +++++ + 9 files changed, 53 insertions(+), 9 deletions(-) + +diff --git a/acinclude.m4 b/acinclude.m4 +index 23015fe..22e75ec 100644 +--- a/acinclude.m4 ++++ b/acinclude.m4 +@@ -134,10 +134,10 @@ AC_DEFUN([OVS_CHECK_LINUX], [ + AC_MSG_RESULT([$kversion]) + + if test "$version" -ge 4; then +- if test "$version" = 4 && test "$patchlevel" -le 3; then ++ if test "$version" = 4 && test "$patchlevel" -le 4; then + : # Linux 4.x + else +- AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version newer than 4.3.x is not supported (please refer to the FAQ for advice)]) ++ AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version newer than 4.4.x is not supported (please refer to the FAQ for advice)]) + fi + elif test "$version" = 3 && test "$patchlevel" -ge 10; then + : # Linux 3.x +diff --git a/datapath/actions.c b/datapath/actions.c +index dcf8591..242e710 100644 +--- a/datapath/actions.c ++++ b/datapath/actions.c +@@ -702,7 +702,8 @@ static void ovs_fragment(struct vport *vport, struct sk_buff *skb, u16 mru, + skb_dst_set_noref(skb, &ovs_dst); + IPCB(skb)->frag_max_size = mru; + +- ip_do_fragment(skb->sk, skb, ovs_vport_output); ++ ip_do_fragment(NET_ARG(dev_net(ovs_dst.dev)) ++ skb->sk, skb, ovs_vport_output); + refdst_drop(orig_dst); + } else if (ethertype == htons(ETH_P_IPV6)) { + const struct nf_ipv6_ops *v6ops = nf_get_ipv6_ops(); +@@ -723,7 +724,8 @@ static void ovs_fragment(struct vport *vport, struct sk_buff *skb, u16 mru, + skb_dst_set_noref(skb, &ovs_rt.dst); + IP6CB(skb)->frag_max_size = mru; + +- v6ops->fragment(skb->sk, skb, ovs_vport_output); ++ v6ops->fragment(NET_ARG(dev_net(ovs_rt.dst.dev)) ++ skb->sk, skb, ovs_vport_output); + refdst_drop(orig_dst); + } else { + WARN_ONCE(1, "Failed fragment ->%s: eth=%04x, MRU=%d, MTU=%d.", +diff --git a/datapath/datapath.c b/datapath/datapath.c +index 5bec072..ba19c01 100644 +--- a/datapath/datapath.c ++++ b/datapath/datapath.c +@@ -95,8 +95,12 @@ static bool ovs_must_notify(struct genl_family *family, struct genl_info *info, + static void ovs_notify(struct genl_family *family, struct genl_multicast_group *grp, + struct sk_buff *skb, struct genl_info *info) + { +- genl_notify(family, skb, genl_info_net(info), ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0) ++ genl_notify(family, skb, info, GROUP_ID(grp), GFP_KERNEL); ++#else ++ genl_notify(family, skb, genl_info_net(info), + info->snd_portid, GROUP_ID(grp), info->nlhdr, GFP_KERNEL); ++#endif + } + + /** +diff --git a/datapath/linux/compat/include/linux/netfilter_ipv6.h b/datapath/linux/compat/include/linux/netfilter_ipv6.h +index 8d896fb..9f64002 100644 +--- a/datapath/linux/compat/include/linux/netfilter_ipv6.h ++++ b/datapath/linux/compat/include/linux/netfilter_ipv6.h +@@ -13,7 +13,7 @@ + * the callback parameter needs to be in the form that older kernels accept. + * We don't backport the other ipv6_ops as they're currently unused by OVS. */ + struct ovs_nf_ipv6_ops { +- int (*fragment)(struct sock *sk, struct sk_buff *skb, ++ int (*fragment)(NET_ARG(net) struct sock *sk, struct sk_buff *skb, + int (*output)(OVS_VPORT_OUTPUT_PARAMS)); + }; + #define nf_ipv6_ops ovs_nf_ipv6_ops +diff --git a/datapath/linux/compat/include/net/ip.h b/datapath/linux/compat/include/net/ip.h +index c283ad0..483662c 100644 +--- a/datapath/linux/compat/include/net/ip.h ++++ b/datapath/linux/compat/include/net/ip.h +@@ -59,8 +59,20 @@ static inline unsigned int rpl_ip_skb_dst_mtu(const struct sk_buff *skb) + #define ip_skb_dst_mtu rpl_ip_skb_dst_mtu + #endif /* HAVE_IP_SKB_DST_MTU */ + ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0) ++#define NET_PARAM(x) struct net *x, ++#define NET_ARG(x) x, ++#define NET_DEV_NET(x) dev_net(x) ++#define NET_DECLARE_INIT(x,y) ++#else ++#define NET_PARAM(x) ++#define NET_ARG(x) ++#define NET_DEV_NET(x) ++#define NET_DECLARE_INIT(x,y) struct net *x = y; ++#endif ++ + #ifdef HAVE_IP_FRAGMENT_TAKES_SOCK +-#define OVS_VPORT_OUTPUT_PARAMS struct sock *sock, struct sk_buff *skb ++#define OVS_VPORT_OUTPUT_PARAMS NET_PARAM(net) struct sock *sock, struct sk_buff *skb + #else + #define OVS_VPORT_OUTPUT_PARAMS struct sk_buff *skb + #endif +@@ -82,12 +94,13 @@ static inline bool ip_defrag_user_in_between(u32 user, + #endif /* < v4.2 */ + + #ifndef HAVE_IP_DO_FRAGMENT +-static inline int rpl_ip_do_fragment(struct sock *sk, struct sk_buff *skb, ++static inline int rpl_ip_do_fragment(NET_PARAM(net) struct sock *sk, struct sk_buff *skb, + int (*output)(OVS_VPORT_OUTPUT_PARAMS)) + { + unsigned int mtu = ip_skb_dst_mtu(skb); + struct iphdr *iph = ip_hdr(skb); + struct rtable *rt = skb_rtable(skb); ++ NET_DECLARE_INIT(net, dev_net(dev)); + struct net_device *dev = rt->dst.dev; + + if (unlikely(((iph->frag_off & htons(IP_DF)) && !skb->ignore_df) || +@@ -95,7 +108,7 @@ static inline int rpl_ip_do_fragment(struct sock *sk, struct sk_buff *skb, + IPCB(skb)->frag_max_size > mtu))) { + + pr_warn("Dropping packet in ip_do_fragment()\n"); +- IP_INC_STATS(dev_net(dev), IPSTATS_MIB_FRAGFAILS); ++ IP_INC_STATS(net, IPSTATS_MIB_FRAGFAILS); + kfree_skb(skb); + return -EMSGSIZE; + } +diff --git a/datapath/linux/compat/include/net/ip6_tunnel.h b/datapath/linux/compat/include/net/ip6_tunnel.h +index ce65087..eacf9ca 100644 +--- a/datapath/linux/compat/include/net/ip6_tunnel.h ++++ b/datapath/linux/compat/include/net/ip6_tunnel.h +@@ -17,11 +17,15 @@ static inline void ip6tunnel_xmit(struct sock *sk, struct sk_buff *skb, + + pkt_len = skb->len - skb_inner_network_offset(skb); + /* TODO: Fix GSO for ipv6 */ ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0) ++ err = ip6_local_out(dev_net(dev), sk, skb); ++#else + #ifdef HAVE_IP6_LOCAL_OUT_SK + err = ip6_local_out_sk(sk, skb); + #else + err = ip6_local_out(skb); + #endif ++#endif /* >= kernel 4.4 */ + if (net_xmit_eval(err) != 0) + pkt_len = net_xmit_eval(err); + else +diff --git a/datapath/linux/compat/include/net/vxlan.h b/datapath/linux/compat/include/net/vxlan.h +index 75a5a7a..589cc0d 100644 +--- a/datapath/linux/compat/include/net/vxlan.h ++++ b/datapath/linux/compat/include/net/vxlan.h +@@ -218,10 +218,20 @@ struct vxlan_dev { + struct net_device *rpl_vxlan_dev_create(struct net *net, const char *name, + u8 name_assign_type, struct vxlan_config *conf); + ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0) ++static inline __be16 vxlan_dev_dst_port(struct vxlan_dev *vxlan, ++ unsigned short family) ++{ ++ if (family == AF_INET6) ++ return inet_sk(vxlan->vn6_sock->sock->sk)->inet_sport; ++ return inet_sk(vxlan->vn4_sock->sock->sk)->inet_sport; ++} ++#else + static inline __be16 vxlan_dev_dst_port(struct vxlan_dev *vxlan) + { + return inet_sk(vxlan->vn_sock->sock->sk)->inet_sport; + } ++#endif + + static inline netdev_features_t vxlan_features_check(struct sk_buff *skb, + netdev_features_t features) +diff --git a/datapath/linux/compat/stt.c b/datapath/linux/compat/stt.c +index 86d225e..6b1e3a3 100644 +--- a/datapath/linux/compat/stt.c ++++ b/datapath/linux/compat/stt.c +@@ -1544,7 +1544,11 @@ static void clean_percpu(struct work_struct *work) + } + + #ifdef HAVE_NF_HOOKFN_ARG_OPS ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0) ++#define FIRST_PARAM void *priv ++#else + #define FIRST_PARAM const struct nf_hook_ops *ops ++#endif /* >= kernel 4.4 */ + #else + #define FIRST_PARAM unsigned int hooknum + #endif +@@ -1592,7 +1596,9 @@ static unsigned int nf_ip_hook(FIRST_PARAM, struct sk_buff *skb, LAST_PARAM) + + static struct nf_hook_ops nf_hook_ops __read_mostly = { + .hook = nf_ip_hook, ++#if LINUX_VERSION_CODE < KERNEL_VERSION(4,4,0) + .owner = THIS_MODULE, ++#endif + .pf = NFPROTO_IPV4, + .hooknum = NF_INET_LOCAL_IN, + .priority = INT_MAX, +diff --git a/datapath/vport-vxlan.c b/datapath/vport-vxlan.c +index c05f5d4..3cbb568 100644 +--- a/datapath/vport-vxlan.c ++++ b/datapath/vport-vxlan.c +@@ -153,7 +153,12 @@ static int vxlan_get_egress_tun_info(struct vport *vport, struct sk_buff *skb, + { + struct vxlan_dev *vxlan = netdev_priv(vport->dev); + struct net *net = ovs_dp_get_net(vport->dp); ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0) ++ unsigned short family = ip_tunnel_info_af(upcall->egress_tun_info); ++ __be16 dst_port = vxlan_dev_dst_port(vxlan, family); ++#else + __be16 dst_port = vxlan_dev_dst_port(vxlan); ++#endif + __be16 src_port; + int port_min; + int port_max; +-- +1.9.1 + |