dc488f8880
Rocker is a simulated ethernet switch device. The device supports up to 62
front-panel ports and supports L2 switching and L3 routing functions, as well
as L2/L3/L4 ACLs. The device presents a single PCI device for each switch,
with a memory-mapped register space for device driver access.
Rocker device is invoked with -device, for example a 4-port switch:
-device rocker,name=sw1,len-ports=4,ports[0]=dev0,ports[1]=dev1, \
ports[2]=dev2,ports[3]=dev3
Each port is a netdev and can be paired with using -netdev id=<port name>.
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Scott Feldman <sfeldma@gmail.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David Ahern <dsahern@gmail.com>
Message-id: 1426306173-24884-7-git-send-email-sfeldma@gmail.com
rocker: fix clang compiler errors
Consolidate all forward typedef declarations to rocker.h.
Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Scott Feldman <sfeldma@gmail.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
rocker: add support for flow modification
We had support for flow add/del. This adds support for flow mod. I needed
this for L3 support where an existing route is modified using NLM_F_REPLACE.
For example:
ip route add 12.0.0.0/30 nexthop via 11.0.0.1 dev swp1
ip route change 12.0.0.0/30 nexthop via 11.0.0.9 dev swp2
The first cmd adds the route. The second cmd changes the existing route by
changing its nexthop info.
In the device, a mod operation results in the matching flow enty being modified
with the new settings. This is atomic to the device.
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
107 lines
2.2 KiB
C
107 lines
2.2 KiB
C
/*
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* QEMU rocker switch emulation - switch worlds
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*
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* Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "qemu/iov.h"
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#include "rocker.h"
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#include "rocker_world.h"
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struct world {
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Rocker *r;
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enum rocker_world_type type;
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WorldOps *ops;
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};
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ssize_t world_ingress(World *world, uint32_t pport,
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const struct iovec *iov, int iovcnt)
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{
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if (world->ops->ig) {
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return world->ops->ig(world, pport, iov, iovcnt);
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}
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return iov_size(iov, iovcnt);
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}
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int world_do_cmd(World *world, DescInfo *info,
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char *buf, uint16_t cmd, RockerTlv *cmd_info_tlv)
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{
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if (world->ops->cmd) {
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return world->ops->cmd(world, info, buf, cmd, cmd_info_tlv);
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}
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return -ROCKER_ENOTSUP;
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}
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World *world_alloc(Rocker *r, size_t sizeof_private,
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enum rocker_world_type type, WorldOps *ops)
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{
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World *w = g_malloc0(sizeof(World) + sizeof_private);
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if (w) {
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w->r = r;
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w->type = type;
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w->ops = ops;
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if (w->ops->init) {
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w->ops->init(w);
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}
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}
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return w;
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}
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void world_free(World *world)
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{
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if (world->ops->uninit) {
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world->ops->uninit(world);
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}
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g_free(world);
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}
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void world_reset(World *world)
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{
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if (world->ops->uninit) {
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world->ops->uninit(world);
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}
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if (world->ops->init) {
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world->ops->init(world);
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}
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}
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void *world_private(World *world)
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{
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return world + 1;
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}
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Rocker *world_rocker(World *world)
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{
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return world->r;
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}
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enum rocker_world_type world_type(World *world)
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{
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return world->type;
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}
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const char *world_name(World *world)
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{
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switch (world->type) {
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case ROCKER_WORLD_TYPE_OF_DPA:
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return "OF_DPA";
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default:
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return "unknown";
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}
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}
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