qemu-patch-raspberry4/hw/net/rocker/rocker_world.h
Scott Feldman dc488f8880 rocker: add new rocker switch device
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>
2015-05-11 14:49:04 +01:00

61 lines
1.9 KiB
C

/*
* QEMU rocker switch emulation - switch worlds
*
* Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _ROCKER_WORLD_H_
#define _ROCKER_WORLD_H_
#include "rocker_hw.h"
enum rocker_world_type {
ROCKER_WORLD_TYPE_OF_DPA = ROCKER_PORT_MODE_OF_DPA,
ROCKER_WORLD_TYPE_MAX,
};
typedef int (world_init)(World *world);
typedef void (world_uninit)(World *world);
typedef ssize_t (world_ig)(World *world, uint32_t pport,
const struct iovec *iov, int iovcnt);
typedef int (world_cmd)(World *world, DescInfo *info,
char *buf, uint16_t cmd,
RockerTlv *cmd_info_tlv);
typedef struct world_ops {
world_init *init;
world_uninit *uninit;
world_ig *ig;
world_cmd *cmd;
} WorldOps;
ssize_t world_ingress(World *world, uint32_t pport,
const struct iovec *iov, int iovcnt);
int world_do_cmd(World *world, DescInfo *info,
char *buf, uint16_t cmd, RockerTlv *cmd_info_tlv);
World *world_alloc(Rocker *r, size_t sizeof_private,
enum rocker_world_type type, WorldOps *ops);
void world_free(World *world);
void world_reset(World *world);
void *world_private(World *world);
Rocker *world_rocker(World *world);
enum rocker_world_type world_type(World *world);
const char *world_name(World *world);
World *rocker_get_world(Rocker *r, enum rocker_world_type type);
#endif /* _ROCKER_WORLD_H_ */