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authorScott Feldman <sfeldma@gmail.com>2015-03-13 21:09:30 -0700
committerStefan Hajnoczi <stefanha@redhat.com>2015-05-11 14:49:04 +0100
commitdc488f888060afdc129e0cc8812cf50c4c083423 (patch)
treee0f534912a160080fa7cbb726894b6a02c1ff2b2 /hw/net/rocker/rocker_world.c
parentdc407ae8a75d03cf48e114d3812d077fa29a8bd9 (diff)
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>
Diffstat (limited to 'hw/net/rocker/rocker_world.c')
-rw-r--r--hw/net/rocker/rocker_world.c106
1 files changed, 106 insertions, 0 deletions
diff --git a/hw/net/rocker/rocker_world.c b/hw/net/rocker/rocker_world.c
new file mode 100644
index 0000000000..b991e871d3
--- /dev/null
+++ b/hw/net/rocker/rocker_world.c
@@ -0,0 +1,106 @@
+/*
+ * 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.
+ */
+
+#include "qemu/iov.h"
+
+#include "rocker.h"
+#include "rocker_world.h"
+
+struct world {
+ Rocker *r;
+ enum rocker_world_type type;
+ WorldOps *ops;
+};
+
+ssize_t world_ingress(World *world, uint32_t pport,
+ const struct iovec *iov, int iovcnt)
+{
+ if (world->ops->ig) {
+ return world->ops->ig(world, pport, iov, iovcnt);
+ }
+
+ return iov_size(iov, iovcnt);
+}
+
+int world_do_cmd(World *world, DescInfo *info,
+ char *buf, uint16_t cmd, RockerTlv *cmd_info_tlv)
+{
+ if (world->ops->cmd) {
+ return world->ops->cmd(world, info, buf, cmd, cmd_info_tlv);
+ }
+
+ return -ROCKER_ENOTSUP;
+}
+
+World *world_alloc(Rocker *r, size_t sizeof_private,
+ enum rocker_world_type type, WorldOps *ops)
+{
+ World *w = g_malloc0(sizeof(World) + sizeof_private);
+
+ if (w) {
+ w->r = r;
+ w->type = type;
+ w->ops = ops;
+ if (w->ops->init) {
+ w->ops->init(w);
+ }
+ }
+
+ return w;
+}
+
+void world_free(World *world)
+{
+ if (world->ops->uninit) {
+ world->ops->uninit(world);
+ }
+ g_free(world);
+}
+
+void world_reset(World *world)
+{
+ if (world->ops->uninit) {
+ world->ops->uninit(world);
+ }
+ if (world->ops->init) {
+ world->ops->init(world);
+ }
+}
+
+void *world_private(World *world)
+{
+ return world + 1;
+}
+
+Rocker *world_rocker(World *world)
+{
+ return world->r;
+}
+
+enum rocker_world_type world_type(World *world)
+{
+ return world->type;
+}
+
+const char *world_name(World *world)
+{
+ switch (world->type) {
+ case ROCKER_WORLD_TYPE_OF_DPA:
+ return "OF_DPA";
+ default:
+ return "unknown";
+ }
+}