/* Receive the ethernet address to which the server should send packets. */
static int wire_server_receive_hw_address(struct wire_server *wire_server)
{
enum wire_op_t op = WIRE_INVALID;
void *buf = NULL;
int buf_len = -1;
if (wire_conn_read(wire_server->wire_conn, &op, &buf, &buf_len))
return STATUS_ERR;
if (op != WIRE_HARDWARE_ADDR) {
fprintf(stderr,
"bad wire client: expected WIRE_HARDWARE_ADDR\n");
return STATUS_ERR;
}
if (buf_len != sizeof(wire_server->client_ether_addr)) {
fprintf(stderr,
"bad wire client: bad hw address length\n");
return STATUS_ERR;
}
ether_copy(&wire_server->client_ether_addr, buf);
return STATUS_OK;
}
/*
* Add or remove multicast address(es).
*
* Returns 0 on success, 1 on failure.
*/
int
vsw_add_rem_mcst(vnet_mcast_msg_t *mcst_pkt, vsw_port_t *port)
{
mcst_addr_t *mcst_p = NULL;
vsw_t *vswp = port->p_vswp;
uint64_t addr = 0x0;
int i;
D1(vswp, "%s: enter", __func__);
D2(vswp, "%s: %d addresses", __func__, mcst_pkt->count);
for (i = 0; i < mcst_pkt->count; i++) {
/*
* Convert address into form that can be used
* as hash table key.
*/
KEY_HASH(addr, &(mcst_pkt->mca[i]));
/*
* Add or delete the specified address/port combination.
*/
if (mcst_pkt->set == 0x1) {
D3(vswp, "%s: adding multicast address 0x%llx for "
"port %ld", __func__, addr, port->p_instance);
if (vsw_add_mcst(vswp, VSW_VNETPORT, addr, port) == 0) {
/*
* Update the list of multicast
* addresses contained within the
* port structure to include this new
* one.
*/
mcst_p = kmem_zalloc(sizeof (mcst_addr_t),
KM_NOSLEEP);
if (mcst_p == NULL) {
DERR(vswp, "%s: unable to alloc mem",
__func__);
(void) vsw_del_mcst(vswp,
VSW_VNETPORT, addr, port);
return (1);
}
mcst_p->nextp = NULL;
mcst_p->addr = addr;
ether_copy(&mcst_pkt->mca[i], &mcst_p->mca);
/*
* Program the address into HW. If the addr
* has already been programmed then the MAC
* just increments a ref counter (which is
* used when the address is being deleted)
*/
if (vsw_mac_multicast_add(vswp, port, mcst_p,
VSW_VNETPORT)) {
(void) vsw_del_mcst(vswp,
VSW_VNETPORT, addr, port);
kmem_free(mcst_p, sizeof (*mcst_p));
return (1);
}
mutex_enter(&port->mca_lock);
mcst_p->nextp = port->mcap;
port->mcap = mcst_p;
mutex_exit(&port->mca_lock);
} else {
DERR(vswp, "%s: error adding multicast "
"address 0x%llx for port %ld",
__func__, addr, port->p_instance);
return (1);
}
} else {
/*
* Delete an entry from the multicast hash
* table and update the address list
* appropriately.
*/
if (vsw_del_mcst(vswp, VSW_VNETPORT, addr, port) == 0) {
D3(vswp, "%s: deleting multicast address "
"0x%llx for port %ld", __func__, addr,
port->p_instance);
mcst_p = vsw_del_addr(VSW_VNETPORT, port, addr);
ASSERT(mcst_p != NULL);
/*
* Remove the address from HW. The address
* will actually only be removed once the ref
* count within the MAC layer has dropped to
* zero. I.e. we can safely call this fn even
* if other ports are interested in this
* address.
*/
vsw_mac_multicast_remove(vswp, port, mcst_p,
VSW_VNETPORT);
kmem_free(mcst_p, sizeof (*mcst_p));
} else {
DERR(vswp, "%s: error deleting multicast "
"addr 0x%llx for port %ld",
__func__, addr, port->p_instance);
return (1);
}
}
}
D1(vswp, "%s: exit", __func__);
return (0);
}