From patchwork Wed Nov 9 07:55:40 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [net-next-2.6, 1/6, v4] rtnetlink: Netlink interface for setting MAC and VLAN filters Date: Tue, 08 Nov 2011 21:55:40 -0000 From: Roopa Prabhu X-Patchwork-Id: 124456 Message-Id: <20111109075540.13549.82297.stgit@rhel6.1> To: netdev@vger.kernel.org, davem@davemloft.net Cc: chrisw@redhat.com, sri@us.ibm.com, dragos.tatulea@gmail.com, kvm@vger.kernel.org, arnd@arndb.de, mst@redhat.com, gregory.v.rose@intel.com, mchan@broadcom.com, dwang2@cisco.com, shemminger@vyatta.com, eric.dumazet@gmail.com, kaber@trash.net, benve@cisco.com From: Roopa Prabhu This patch introduces the following netlink interface to set MAC and VLAN filters on an network interface. It can be used to set RX filter on any network interface (if supported by the driver) and also on a SRIOV VF via its PF Interface to set RX filter on a SRIOV VF [IFLA_VF_RX_FILTERS] = { [IFLA_VF_RX_FILTER] = { [IFLA_RX_FILTER_VF] [IFLA_RX_FILTER_ADDR] = { [IFLA_RX_FILTER_ADDR_FLAGS] [IFLA_RX_FILTER_ADDR_UC_LIST] = { [IFLA_ADDR_LIST_ENTRY] } [IFLA_RX_FILTER_ADDR_MC_LIST] = { [IFLA_ADDR_LIST_ENTRY] } } [IFLA_RX_FILTER_VLAN] = { [IFLA_RX_FILTER_VLAN_BITMAP] } } ... } Interface to set RX filter on any network interface.: [IFLA_RX_FILTER] = { [IFLA_RX_FILTER_VF] [IFLA_RX_FILTER_ADDR] = { [IFLA_RX_FILTER_ADDR_FLAGS] [IFLA_RX_FILTER_ADDR_UC_LIST] = { [IFLA_ADDR_LIST_ENTRY] } [IFLA_RX_FILTER_ADDR_MC_LIST] = { [IFLA_ADDR_LIST_ENTRY] } } [IFLA_RX_FILTER_VLAN] = { [IFLA_RX_FILTER_VLAN_BITMAP] } } Signed-off-by: Roopa Prabhu Signed-off-by: Christian Benvenuti Signed-off-by: David Wang --- include/linux/if_link.h | 61 +++++++++++++++++++++++++++++++++++++++++++++++ net/core/rtnetlink.c | 20 +++++++++++++++ 2 files changed, 81 insertions(+), 0 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/include/linux/if_link.h b/include/linux/if_link.h index c52d4b5..74a9f17 100644 --- a/include/linux/if_link.h +++ b/include/linux/if_link.h @@ -137,6 +137,8 @@ enum { IFLA_AF_SPEC, IFLA_GROUP, /* Group the device belongs to */ IFLA_NET_NS_FD, + IFLA_VF_RX_FILTERS, + IFLA_RX_FILTER, __IFLA_MAX }; @@ -390,4 +392,63 @@ struct ifla_port_vsi { __u8 pad[3]; }; +/* VF rx filters management section + * + * Nested layout of set/get msg is: + * + * [IFLA_VF_RX_FILTERS] + * [IFLA_VF_RX_FILTER] + * [IFLA_RX_FILTER_*], ... + * [IFLA_VF_RX_FILTER] + * [IFLA_RX_FILTER_*], ... + * ... + * [IFLA_RX_FILTER] + * [IFLA_RX_FILTER_*], ... + */ +enum { + IFLA_VF_RX_FILTER_UNSPEC, + IFLA_VF_RX_FILTER, /* nest */ + __IFLA_VF_RX_FILTER_MAX, +}; + +#define IFLA_VF_RX_FILTER_MAX (__IFLA_VF_RX_FILTER_MAX - 1) + +enum { + IFLA_RX_FILTER_UNSPEC, + IFLA_RX_FILTER_VF, /* __u32 */ + IFLA_RX_FILTER_ADDR, + IFLA_RX_FILTER_VLAN, + __IFLA_RX_FILTER_MAX, +}; +#define IFLA_RX_FILTER_MAX (__IFLA_RX_FILTER_MAX - 1) + +enum { + IFLA_RX_FILTER_ADDR_UNSPEC, + IFLA_RX_FILTER_ADDR_FLAGS, + IFLA_RX_FILTER_ADDR_UC_LIST, + IFLA_RX_FILTER_ADDR_MC_LIST, + __IFLA_RX_FILTER_ADDR_MAX, +}; +#define IFLA_RX_FILTER_ADDR_MAX (__IFLA_RX_FILTER_ADDR_MAX - 1) + +#define RX_FILTER_FLAGS (IFF_UP | IFF_BROADCAST | IFF_MULTICAST | \ + IFF_PROMISC | IFF_ALLMULTI) + +enum { + IFLA_ADDR_LIST_UNSPEC, + IFLA_ADDR_LIST_ENTRY, + __IFLA_ADDR_LIST_MAX, +}; +#define IFLA_ADDR_LIST_MAX (__IFLA_ADDR_LIST_MAX - 1) + +enum { + IFLA_RX_FILTER_VLAN_UNSPEC, + IFLA_RX_FILTER_VLAN_BITMAP, + __IFLA_RX_FILTER_VLAN_MAX, +}; +#define IFLA_RX_FILTER_VLAN_MAX (__IFLA_RX_FILTER_VLAN_MAX - 1) + +#define VLAN_BITMAP_SPLIT_MAX 8 +#define VLAN_BITMAP_SIZE (VLAN_N_VID/VLAN_BITMAP_SPLIT_MAX) + #endif /* _LINUX_IF_LINK_H */ diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 9083e82..9eead8e 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -42,6 +42,7 @@ #include #include +#include #include #include #include @@ -1097,6 +1098,8 @@ const struct nla_policy ifla_policy[IFLA_MAX+1] = { [IFLA_VF_PORTS] = { .type = NLA_NESTED }, [IFLA_PORT_SELF] = { .type = NLA_NESTED }, [IFLA_AF_SPEC] = { .type = NLA_NESTED }, + [IFLA_VF_RX_FILTERS] = { .type = NLA_NESTED }, + [IFLA_RX_FILTER] = { .type = NLA_NESTED }, }; EXPORT_SYMBOL(ifla_policy); @@ -1132,6 +1135,23 @@ static const struct nla_policy ifla_port_policy[IFLA_PORT_MAX+1] = { [IFLA_PORT_RESPONSE] = { .type = NLA_U16, }, }; +static const struct nla_policy ifla_rx_filter_policy[IFLA_RX_FILTER_MAX+1] = { + [IFLA_RX_FILTER_VF] = { .type = NLA_U32 }, + [IFLA_RX_FILTER_ADDR] = { .type = NLA_NESTED }, + [IFLA_RX_FILTER_VLAN] = { .type = NLA_NESTED }, +}; + +static const struct nla_policy ifla_addr_filter_policy[IFLA_RX_FILTER_ADDR_MAX+1] = { + [IFLA_RX_FILTER_ADDR_FLAGS] = { .type = NLA_U32 }, + [IFLA_RX_FILTER_ADDR_UC_LIST] = { .type = NLA_NESTED }, + [IFLA_RX_FILTER_ADDR_MC_LIST] = { .type = NLA_NESTED }, +}; + +static const struct nla_policy ifla_vlan_filter_policy[IFLA_RX_FILTER_VLAN_MAX+1] = { + [IFLA_RX_FILTER_VLAN_BITMAP] = { .type = NLA_BINARY, + .len = VLAN_BITMAP_SIZE }, +}; + struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]) { struct net *net;