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https://github.com/Motorhead1991/qemu.git
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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>
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
/*
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* QEMU rocker switch emulation
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*
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* Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
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* Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
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* Copyright (c) 2014 Neil Horman <nhorman@tuxdriver.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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#ifndef _ROCKER_H_
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#define _ROCKER_H_
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#include "qemu/sockets.h"
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#if defined(DEBUG_ROCKER)
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# define DPRINTF(fmt, ...) \
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do { fprintf(stderr, "ROCKER: " fmt, ## __VA_ARGS__); } while (0)
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#else
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static inline GCC_FMT_ATTR(1, 2) int DPRINTF(const char *fmt, ...)
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{
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return 0;
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}
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#endif
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#define __le16 uint16_t
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#define __le32 uint32_t
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#define __le64 uint64_t
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#define __be16 uint16_t
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#define __be32 uint32_t
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#define __be64 uint64_t
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static inline bool ipv4_addr_is_multicast(__be32 addr)
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{
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return (addr & htonl(0xf0000000)) == htonl(0xe0000000);
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}
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typedef struct ipv6_addr {
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union {
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uint8_t addr8[16];
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__be16 addr16[8];
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__be32 addr32[4];
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};
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} Ipv6Addr;
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static inline bool ipv6_addr_is_multicast(const Ipv6Addr *addr)
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{
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return (addr->addr32[0] & htonl(0xFF000000)) == htonl(0xFF000000);
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}
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typedef struct rocker Rocker;
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typedef struct world World;
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typedef struct desc_info DescInfo;
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typedef struct desc_ring DescRing;
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Rocker *rocker_find(const char *name);
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uint32_t rocker_fp_ports(Rocker *r);
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int rocker_event_link_changed(Rocker *r, uint32_t pport, bool link_up);
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int rocker_event_mac_vlan_seen(Rocker *r, uint32_t pport, uint8_t *addr,
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uint16_t vlan_id);
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int rx_produce(World *world, uint32_t pport,
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const struct iovec *iov, int iovcnt);
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int rocker_port_eg(Rocker *r, uint32_t pport,
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const struct iovec *iov, int iovcnt);
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#endif /* _ROCKER_H_ */
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