57b610805c
Add new netdev ops ndo_{set|get}_vf_port to allow setting of
port-profile on a netdev interface. Extends netlink socket RTM_SETLINK/
RTM_GETLINK with two new sub msgs called IFLA_VF_PORTS and IFLA_PORT_SELF
(added to end of IFLA_cmd list). These are both nested atrtibutes
using this layout:
[IFLA_NUM_VF]
[IFLA_VF_PORTS]
[IFLA_VF_PORT]
[IFLA_PORT_*], ...
[IFLA_VF_PORT]
[IFLA_PORT_*], ...
...
[IFLA_PORT_SELF]
[IFLA_PORT_*], ...
These attributes are design to be set and get symmetrically. VF_PORTS
is a list of VF_PORTs, one for each VF, when dealing with an SR-IOV
device. PORT_SELF is for the PF of the SR-IOV device, in case it wants
to also have a port-profile, or for the case where the VF==PF, like in
enic patch 2/2 of this patch set.
A port-profile is used to configure/enable the external switch virtual port
backing the netdev interface, not to configure the host-facing side of the
netdev. A port-profile is an identifier known to the switch. How port-
profiles are installed on the switch or how available port-profiles are
made know to the host is outside the scope of this patch.
There are two types of port-profiles specs in the netlink msg. The first spec
is for 802.1Qbg (pre-)standard, VDP protocol. The second spec is for devices
that run a similar protocol as VDP but in firmware, thus hiding the protocol
details. In either case, the specs have much in common and makes sense to
define the netlink msg as the union of the two specs. For example, both specs
have a notition of associating/deassociating a port-profile. And both specs
require some information from the hypervisor manager, such as client port
instance ID.
The general flow is the port-profile is applied to a host netdev interface
using RTM_SETLINK, the receiver of the RTM_SETLINK msg communicates with the
switch, and the switch virtual port backing the host netdev interface is
configured/enabled based on the settings defined by the port-profile. What
those settings comprise, and how those settings are managed is again
outside the scope of this patch, since this patch only deals with the
first step in the flow.
Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
352 lines
8.2 KiB
C
352 lines
8.2 KiB
C
#ifndef _LINUX_IF_LINK_H
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#define _LINUX_IF_LINK_H
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#include <linux/types.h>
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#include <linux/netlink.h>
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/* The struct should be in sync with struct net_device_stats */
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struct rtnl_link_stats {
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__u32 rx_packets; /* total packets received */
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__u32 tx_packets; /* total packets transmitted */
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__u32 rx_bytes; /* total bytes received */
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__u32 tx_bytes; /* total bytes transmitted */
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__u32 rx_errors; /* bad packets received */
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__u32 tx_errors; /* packet transmit problems */
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__u32 rx_dropped; /* no space in linux buffers */
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__u32 tx_dropped; /* no space available in linux */
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__u32 multicast; /* multicast packets received */
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__u32 collisions;
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/* detailed rx_errors: */
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__u32 rx_length_errors;
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__u32 rx_over_errors; /* receiver ring buff overflow */
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__u32 rx_crc_errors; /* recved pkt with crc error */
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__u32 rx_frame_errors; /* recv'd frame alignment error */
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__u32 rx_fifo_errors; /* recv'r fifo overrun */
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__u32 rx_missed_errors; /* receiver missed packet */
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/* detailed tx_errors */
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__u32 tx_aborted_errors;
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__u32 tx_carrier_errors;
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__u32 tx_fifo_errors;
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__u32 tx_heartbeat_errors;
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__u32 tx_window_errors;
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/* for cslip etc */
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__u32 rx_compressed;
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__u32 tx_compressed;
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};
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struct rtnl_link_stats64 {
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__u64 rx_packets; /* total packets received */
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__u64 tx_packets; /* total packets transmitted */
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__u64 rx_bytes; /* total bytes received */
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__u64 tx_bytes; /* total bytes transmitted */
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__u64 rx_errors; /* bad packets received */
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__u64 tx_errors; /* packet transmit problems */
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__u64 rx_dropped; /* no space in linux buffers */
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__u64 tx_dropped; /* no space available in linux */
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__u64 multicast; /* multicast packets received */
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__u64 collisions;
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/* detailed rx_errors: */
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__u64 rx_length_errors;
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__u64 rx_over_errors; /* receiver ring buff overflow */
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__u64 rx_crc_errors; /* recved pkt with crc error */
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__u64 rx_frame_errors; /* recv'd frame alignment error */
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__u64 rx_fifo_errors; /* recv'r fifo overrun */
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__u64 rx_missed_errors; /* receiver missed packet */
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/* detailed tx_errors */
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__u64 tx_aborted_errors;
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__u64 tx_carrier_errors;
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__u64 tx_fifo_errors;
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__u64 tx_heartbeat_errors;
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__u64 tx_window_errors;
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/* for cslip etc */
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__u64 rx_compressed;
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__u64 tx_compressed;
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};
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/* The struct should be in sync with struct ifmap */
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struct rtnl_link_ifmap {
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__u64 mem_start;
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__u64 mem_end;
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__u64 base_addr;
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__u16 irq;
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__u8 dma;
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__u8 port;
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};
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enum {
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IFLA_UNSPEC,
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IFLA_ADDRESS,
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IFLA_BROADCAST,
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IFLA_IFNAME,
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IFLA_MTU,
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IFLA_LINK,
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IFLA_QDISC,
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IFLA_STATS,
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IFLA_COST,
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#define IFLA_COST IFLA_COST
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IFLA_PRIORITY,
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#define IFLA_PRIORITY IFLA_PRIORITY
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IFLA_MASTER,
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#define IFLA_MASTER IFLA_MASTER
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IFLA_WIRELESS, /* Wireless Extension event - see wireless.h */
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#define IFLA_WIRELESS IFLA_WIRELESS
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IFLA_PROTINFO, /* Protocol specific information for a link */
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#define IFLA_PROTINFO IFLA_PROTINFO
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IFLA_TXQLEN,
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#define IFLA_TXQLEN IFLA_TXQLEN
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IFLA_MAP,
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#define IFLA_MAP IFLA_MAP
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IFLA_WEIGHT,
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#define IFLA_WEIGHT IFLA_WEIGHT
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IFLA_OPERSTATE,
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IFLA_LINKMODE,
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IFLA_LINKINFO,
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#define IFLA_LINKINFO IFLA_LINKINFO
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IFLA_NET_NS_PID,
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IFLA_IFALIAS,
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IFLA_NUM_VF, /* Number of VFs if device is SR-IOV PF */
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IFLA_VFINFO_LIST,
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IFLA_STATS64,
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IFLA_VF_PORTS,
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IFLA_PORT_SELF,
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__IFLA_MAX
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};
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#define IFLA_MAX (__IFLA_MAX - 1)
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/* backwards compatibility for userspace */
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#ifndef __KERNEL__
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#define IFLA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg))))
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#define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifinfomsg))
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#endif
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/* ifi_flags.
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IFF_* flags.
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The only change is:
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IFF_LOOPBACK, IFF_BROADCAST and IFF_POINTOPOINT are
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more not changeable by user. They describe link media
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characteristics and set by device driver.
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Comments:
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- Combination IFF_BROADCAST|IFF_POINTOPOINT is invalid
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- If neither of these three flags are set;
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the interface is NBMA.
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- IFF_MULTICAST does not mean anything special:
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multicasts can be used on all not-NBMA links.
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IFF_MULTICAST means that this media uses special encapsulation
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for multicast frames. Apparently, all IFF_POINTOPOINT and
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IFF_BROADCAST devices are able to use multicasts too.
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*/
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/* IFLA_LINK.
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For usual devices it is equal ifi_index.
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If it is a "virtual interface" (f.e. tunnel), ifi_link
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can point to real physical interface (f.e. for bandwidth calculations),
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or maybe 0, what means, that real media is unknown (usual
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for IPIP tunnels, when route to endpoint is allowed to change)
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*/
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/* Subtype attributes for IFLA_PROTINFO */
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enum {
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IFLA_INET6_UNSPEC,
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IFLA_INET6_FLAGS, /* link flags */
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IFLA_INET6_CONF, /* sysctl parameters */
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IFLA_INET6_STATS, /* statistics */
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IFLA_INET6_MCAST, /* MC things. What of them? */
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IFLA_INET6_CACHEINFO, /* time values and max reasm size */
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IFLA_INET6_ICMP6STATS, /* statistics (icmpv6) */
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__IFLA_INET6_MAX
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};
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#define IFLA_INET6_MAX (__IFLA_INET6_MAX - 1)
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struct ifla_cacheinfo {
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__u32 max_reasm_len;
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__u32 tstamp; /* ipv6InterfaceTable updated timestamp */
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__u32 reachable_time;
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__u32 retrans_time;
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};
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enum {
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IFLA_INFO_UNSPEC,
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IFLA_INFO_KIND,
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IFLA_INFO_DATA,
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IFLA_INFO_XSTATS,
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__IFLA_INFO_MAX,
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};
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#define IFLA_INFO_MAX (__IFLA_INFO_MAX - 1)
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/* VLAN section */
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enum {
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IFLA_VLAN_UNSPEC,
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IFLA_VLAN_ID,
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IFLA_VLAN_FLAGS,
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IFLA_VLAN_EGRESS_QOS,
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IFLA_VLAN_INGRESS_QOS,
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__IFLA_VLAN_MAX,
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};
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#define IFLA_VLAN_MAX (__IFLA_VLAN_MAX - 1)
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struct ifla_vlan_flags {
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__u32 flags;
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__u32 mask;
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};
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enum {
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IFLA_VLAN_QOS_UNSPEC,
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IFLA_VLAN_QOS_MAPPING,
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__IFLA_VLAN_QOS_MAX
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};
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#define IFLA_VLAN_QOS_MAX (__IFLA_VLAN_QOS_MAX - 1)
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struct ifla_vlan_qos_mapping {
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__u32 from;
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__u32 to;
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};
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/* MACVLAN section */
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enum {
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IFLA_MACVLAN_UNSPEC,
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IFLA_MACVLAN_MODE,
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__IFLA_MACVLAN_MAX,
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};
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#define IFLA_MACVLAN_MAX (__IFLA_MACVLAN_MAX - 1)
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enum macvlan_mode {
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MACVLAN_MODE_PRIVATE = 1, /* don't talk to other macvlans */
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MACVLAN_MODE_VEPA = 2, /* talk to other ports through ext bridge */
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MACVLAN_MODE_BRIDGE = 4, /* talk to bridge ports directly */
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};
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/* SR-IOV virtual function managment section */
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enum {
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IFLA_VF_INFO_UNSPEC,
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IFLA_VF_INFO,
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__IFLA_VF_INFO_MAX,
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};
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#define IFLA_VF_INFO_MAX (__IFLA_VF_INFO_MAX - 1)
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enum {
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IFLA_VF_UNSPEC,
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IFLA_VF_MAC, /* Hardware queue specific attributes */
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IFLA_VF_VLAN,
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IFLA_VF_TX_RATE, /* TX Bandwidth Allocation */
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__IFLA_VF_MAX,
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};
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#define IFLA_VF_MAX (__IFLA_VF_MAX - 1)
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struct ifla_vf_mac {
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__u32 vf;
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__u8 mac[32]; /* MAX_ADDR_LEN */
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};
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struct ifla_vf_vlan {
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__u32 vf;
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__u32 vlan; /* 0 - 4095, 0 disables VLAN filter */
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__u32 qos;
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};
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struct ifla_vf_tx_rate {
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__u32 vf;
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__u32 rate; /* Max TX bandwidth in Mbps, 0 disables throttling */
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};
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struct ifla_vf_info {
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__u32 vf;
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__u8 mac[32];
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__u32 vlan;
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__u32 qos;
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__u32 tx_rate;
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};
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/* VF ports management section
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*
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* Nested layout of set/get msg is:
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*
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* [IFLA_NUM_VF]
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* [IFLA_VF_PORTS]
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* [IFLA_VF_PORT]
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* [IFLA_PORT_*], ...
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* [IFLA_VF_PORT]
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* [IFLA_PORT_*], ...
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* ...
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* [IFLA_PORT_SELF]
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* [IFLA_PORT_*], ...
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*/
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enum {
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IFLA_VF_PORT_UNSPEC,
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IFLA_VF_PORT, /* nest */
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__IFLA_VF_PORT_MAX,
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};
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#define IFLA_VF_PORT_MAX (__IFLA_VF_PORT_MAX - 1)
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enum {
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IFLA_PORT_UNSPEC,
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IFLA_PORT_VF, /* __u32 */
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IFLA_PORT_PROFILE, /* string */
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IFLA_PORT_VSI_TYPE, /* 802.1Qbg (pre-)standard VDP */
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IFLA_PORT_INSTANCE_UUID, /* binary UUID */
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IFLA_PORT_HOST_UUID, /* binary UUID */
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IFLA_PORT_REQUEST, /* __u8 */
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IFLA_PORT_RESPONSE, /* __u16, output only */
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__IFLA_PORT_MAX,
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};
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#define IFLA_PORT_MAX (__IFLA_PORT_MAX - 1)
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#define PORT_PROFILE_MAX 40
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#define PORT_UUID_MAX 16
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#define PORT_SELF_VF -1
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enum {
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PORT_REQUEST_PREASSOCIATE = 0,
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PORT_REQUEST_PREASSOCIATE_RR,
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PORT_REQUEST_ASSOCIATE,
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PORT_REQUEST_DISASSOCIATE,
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};
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enum {
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PORT_VDP_RESPONSE_SUCCESS = 0,
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PORT_VDP_RESPONSE_INVALID_FORMAT,
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PORT_VDP_RESPONSE_INSUFFICIENT_RESOURCES,
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PORT_VDP_RESPONSE_UNUSED_VTID,
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PORT_VDP_RESPONSE_VTID_VIOLATION,
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PORT_VDP_RESPONSE_VTID_VERSION_VIOALTION,
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PORT_VDP_RESPONSE_OUT_OF_SYNC,
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/* 0x08-0xFF reserved for future VDP use */
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PORT_PROFILE_RESPONSE_SUCCESS = 0x100,
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PORT_PROFILE_RESPONSE_INPROGRESS,
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PORT_PROFILE_RESPONSE_INVALID,
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PORT_PROFILE_RESPONSE_BADSTATE,
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PORT_PROFILE_RESPONSE_INSUFFICIENT_RESOURCES,
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PORT_PROFILE_RESPONSE_ERROR,
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};
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struct ifla_port_vsi {
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__u8 vsi_mgr_id;
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__u8 vsi_type_id[3];
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__u8 vsi_type_version;
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__u8 pad[3];
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};
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#endif /* _LINUX_IF_LINK_H */
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