--- /dev/null
+/*
+ * QEMU rocker switch emulation - front-panel ports
+ *
+ * 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 "net/clients.h"
+
+#include "rocker.h"
+#include "rocker_hw.h"
+#include "rocker_fp.h"
+#include "rocker_world.h"
+
+enum duplex {
+ DUPLEX_HALF = 0,
+ DUPLEX_FULL
+};
+
+struct fp_port {
+ Rocker *r;
+ World *world;
+ unsigned int index;
+ char *name;
+ uint32_t pport;
+ bool enabled;
+ uint32_t speed;
+ uint8_t duplex;
+ uint8_t autoneg;
+ uint8_t learning;
+ NICState *nic;
+ NICConf conf;
+};
+
+char *fp_port_get_name(FpPort *port)
+{
+ return port->name;
+}
+
+bool fp_port_get_link_up(FpPort *port)
+{
+ return !qemu_get_queue(port->nic)->link_down;
+}
+
+void fp_port_get_info(FpPort *port, RockerPortList *info)
+{
+ info->value->name = g_strdup(port->name);
+ info->value->enabled = port->enabled;
+ info->value->link_up = fp_port_get_link_up(port);
+ info->value->speed = port->speed;
+ info->value->duplex = port->duplex;
+ info->value->autoneg = port->autoneg;
+}
+
+void fp_port_get_macaddr(FpPort *port, MACAddr *macaddr)
+{
+ memcpy(macaddr->a, port->conf.macaddr.a, sizeof(macaddr->a));
+}
+
+void fp_port_set_macaddr(FpPort *port, MACAddr *macaddr)
+{
+/* XXX TODO implement and test setting mac addr
+ * XXX memcpy(port->conf.macaddr.a, macaddr.a, sizeof(port->conf.macaddr.a));
+ */
+}
+
+uint8_t fp_port_get_learning(FpPort *port)
+{
+ return port->learning;
+}
+
+void fp_port_set_learning(FpPort *port, uint8_t learning)
+{
+ port->learning = learning;
+}
+
+int fp_port_get_settings(FpPort *port, uint32_t *speed,
+ uint8_t *duplex, uint8_t *autoneg)
+{
+ *speed = port->speed;
+ *duplex = port->duplex;
+ *autoneg = port->autoneg;
+
+ return ROCKER_OK;
+}
+
+int fp_port_set_settings(FpPort *port, uint32_t speed,
+ uint8_t duplex, uint8_t autoneg)
+{
+ /* XXX validate inputs */
+
+ port->speed = speed;
+ port->duplex = duplex;
+ port->autoneg = autoneg;
+
+ return ROCKER_OK;
+}
+
+bool fp_port_from_pport(uint32_t pport, uint32_t *port)
+{
+ if (pport < 1 || pport > ROCKER_FP_PORTS_MAX) {
+ return false;
+ }
+ *port = pport - 1;
+ return true;
+}
+
+int fp_port_eg(FpPort *port, const struct iovec *iov, int iovcnt)
+{
+ NetClientState *nc = qemu_get_queue(port->nic);
+
+ if (port->enabled) {
+ qemu_sendv_packet(nc, iov, iovcnt);
+ }
+
+ return ROCKER_OK;
+}
+
+static ssize_t fp_port_receive_iov(NetClientState *nc, const struct iovec *iov,
+ int iovcnt)
+{
+ FpPort *port = qemu_get_nic_opaque(nc);
+
+ /* If the port is disabled, we want to drop this pkt
+ * now rather than queing it for later. We don't want
+ * any stale pkts getting into the device when the port
+ * transitions to enabled.
+ */
+
+ if (!port->enabled) {
+ return -1;
+ }
+
+ return world_ingress(port->world, port->pport, iov, iovcnt);
+}
+
+static ssize_t fp_port_receive(NetClientState *nc, const uint8_t *buf,
+ size_t size)
+{
+ const struct iovec iov = {
+ .iov_base = (uint8_t *)buf,
+ .iov_len = size
+ };
+
+ return fp_port_receive_iov(nc, &iov, 1);
+}
+
+static void fp_port_cleanup(NetClientState *nc)
+{
+}
+
+static void fp_port_set_link_status(NetClientState *nc)
+{
+ FpPort *port = qemu_get_nic_opaque(nc);
+
+ rocker_event_link_changed(port->r, port->pport, !nc->link_down);
+}
+
+static NetClientInfo fp_port_info = {
+ .type = NET_CLIENT_OPTIONS_KIND_NIC,
+ .size = sizeof(NICState),
+ .receive = fp_port_receive,
+ .receive_iov = fp_port_receive_iov,
+ .cleanup = fp_port_cleanup,
+ .link_status_changed = fp_port_set_link_status,
+};
+
+World *fp_port_get_world(FpPort *port)
+{
+ return port->world;
+}
+
+void fp_port_set_world(FpPort *port, World *world)
+{
+ DPRINTF("port %d setting world \"%s\"\n", port->index, world_name(world));
+ port->world = world;
+}
+
+bool fp_port_enabled(FpPort *port)
+{
+ return port->enabled;
+}
+
+static void fp_port_set_link(FpPort *port, bool up)
+{
+ NetClientState *nc = qemu_get_queue(port->nic);
+
+ if (up == nc->link_down) {
+ nc->link_down = !up;
+ nc->info->link_status_changed(nc);
+ }
+}
+
+void fp_port_enable(FpPort *port)
+{
+ fp_port_set_link(port, true);
+ port->enabled = true;
+ DPRINTF("port %d enabled\n", port->index);
+}
+
+void fp_port_disable(FpPort *port)
+{
+ port->enabled = false;
+ fp_port_set_link(port, false);
+ DPRINTF("port %d disabled\n", port->index);
+}
+
+FpPort *fp_port_alloc(Rocker *r, char *sw_name,
+ MACAddr *start_mac, unsigned int index,
+ NICPeers *peers)
+{
+ FpPort *port = g_malloc0(sizeof(FpPort));
+
+ if (!port) {
+ return NULL;
+ }
+
+ port->r = r;
+ port->index = index;
+ port->pport = index + 1;
+
+ /* front-panel switch port names are 1-based */
+
+ port->name = g_strdup_printf("%sp%d", sw_name, port->pport);
+
+ memcpy(port->conf.macaddr.a, start_mac, sizeof(port->conf.macaddr.a));
+ port->conf.macaddr.a[5] += index;
+ port->conf.bootindex = -1;
+ port->conf.peers = *peers;
+
+ port->nic = qemu_new_nic(&fp_port_info, &port->conf,
+ sw_name, NULL, port);
+ qemu_format_nic_info_str(qemu_get_queue(port->nic),
+ port->conf.macaddr.a);
+
+ fp_port_reset(port);
+
+ return port;
+}
+
+void fp_port_free(FpPort *port)
+{
+ qemu_del_nic(port->nic);
+ g_free(port->name);
+ g_free(port);
+}
+
+void fp_port_reset(FpPort *port)
+{
+ fp_port_disable(port);
+ port->speed = 10000; /* 10Gbps */
+ port->duplex = DUPLEX_FULL;
+ port->autoneg = 0;
+}
Code Review / kvmfornfv.git / blobdiff