mirror of
https://github.com/qemu/qemu.git
synced 2024-12-06 02:03:38 +08:00
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>
54 lines
1.9 KiB
C
54 lines
1.9 KiB
C
/*
|
|
* QEMU rocker switch emulation - Descriptor ring support
|
|
*
|
|
* 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_DESC_H_
|
|
#define _ROCKER_DESC_H_
|
|
|
|
#include "rocker_hw.h"
|
|
|
|
typedef int (desc_ring_consume)(Rocker *r, DescInfo *info);
|
|
|
|
uint16_t desc_buf_size(DescInfo *info);
|
|
uint16_t desc_tlv_size(DescInfo *info);
|
|
char *desc_get_buf(DescInfo *info, bool read_only);
|
|
int desc_set_buf(DescInfo *info, size_t tlv_size);
|
|
DescRing *desc_get_ring(DescInfo *info);
|
|
|
|
int desc_ring_index(DescRing *ring);
|
|
bool desc_ring_set_base_addr(DescRing *ring, uint64_t base_addr);
|
|
uint64_t desc_ring_get_base_addr(DescRing *ring);
|
|
bool desc_ring_set_size(DescRing *ring, uint32_t size);
|
|
uint32_t desc_ring_get_size(DescRing *ring);
|
|
bool desc_ring_set_head(DescRing *ring, uint32_t new);
|
|
uint32_t desc_ring_get_head(DescRing *ring);
|
|
uint32_t desc_ring_get_tail(DescRing *ring);
|
|
void desc_ring_set_ctrl(DescRing *ring, uint32_t val);
|
|
bool desc_ring_ret_credits(DescRing *ring, uint32_t credits);
|
|
uint32_t desc_ring_get_credits(DescRing *ring);
|
|
|
|
DescInfo *desc_ring_fetch_desc(DescRing *ring);
|
|
bool desc_ring_post_desc(DescRing *ring, int status);
|
|
|
|
void desc_ring_set_consume(DescRing *ring, desc_ring_consume *consume,
|
|
unsigned vector);
|
|
unsigned desc_ring_get_msix_vector(DescRing *ring);
|
|
DescRing *desc_ring_alloc(Rocker *r, int index);
|
|
void desc_ring_free(DescRing *ring);
|
|
void desc_ring_reset(DescRing *ring);
|
|
|
|
#endif
|