/*
* Set up an L2T entry and send any packets waiting in the arp queue. The
* supplied skb is used for the CPL_L2T_WRITE_REQ. Must be called with the
* entry locked.
*/
static int setup_l2e_send_pending(struct t3cdev *dev, struct sk_buff *skb,
struct l2t_entry *e)
{
struct cpl_l2t_write_req *req;
if (!skb) {
skb = alloc_skb(sizeof(*req), GFP_ATOMIC);
if (!skb)
return -ENOMEM;
}
req = (struct cpl_l2t_write_req *)__skb_put(skb, sizeof(*req));
req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_L2T_WRITE_REQ, e->idx));
req->params = htonl(V_L2T_W_IDX(e->idx) | V_L2T_W_IFF(e->smt_idx) |
V_L2T_W_VLAN(e->vlan & VLAN_VID_MASK) |
V_L2T_W_PRIO(vlan_prio(e)));
memcpy(e->dmac, e->neigh->ha, sizeof(e->dmac));
memcpy(req->dst_mac, e->dmac, sizeof(req->dst_mac));
skb->priority = CPL_PRIORITY_CONTROL;
cxgb3_ofld_send(dev, skb);
while (e->arpq_head) {
skb = e->arpq_head;
e->arpq_head = skb->next;
skb->next = NULL;
cxgb3_ofld_send(dev, skb);
}
e->arpq_tail = NULL;
e->state = L2T_STATE_VALID;
return 0;
}
int
sysctl_l2t(SYSCTL_HANDLER_ARGS)
{
struct adapter *sc = arg1;
struct l2t_data *l2t = sc->l2t;
struct l2t_entry *e;
struct sbuf *sb;
int rc, i, header = 0;
char ip[INET6_ADDRSTRLEN];
if (l2t == NULL)
return (ENXIO);
rc = sysctl_wire_old_buffer(req, 0);
if (rc != 0)
return (rc);
sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req);
if (sb == NULL)
return (ENOMEM);
e = &l2t->l2tab[0];
for (i = 0; i < l2t->l2t_size; i++, e++) {
mtx_lock(&e->lock);
if (e->state == L2T_STATE_UNUSED)
goto skip;
if (header == 0) {
sbuf_printf(sb, " Idx IP address "
"Ethernet address VLAN/P LP State Users Port");
header = 1;
}
if (e->state == L2T_STATE_SWITCHING)
ip[0] = 0;
else {
inet_ntop(e->ipv6 ? AF_INET6 : AF_INET, &e->addr[0],
&ip[0], sizeof(ip));
}
/*
* XXX: e->ifp may not be around.
* XXX: IPv6 addresses may not align properly in the output.
*/
sbuf_printf(sb, "\n%4u %-15s %02x:%02x:%02x:%02x:%02x:%02x %4d"
" %u %2u %c %5u %s",
e->idx, ip, e->dmac[0], e->dmac[1], e->dmac[2],
e->dmac[3], e->dmac[4], e->dmac[5],
e->vlan & 0xfff, vlan_prio(e), e->lport,
l2e_state(e), atomic_load_acq_int(&e->refcnt),
e->ifp->if_xname);
skip:
mtx_unlock(&e->lock);
}
rc = sbuf_finish(sb);
sbuf_delete(sb);
return (rc);
}
