/* * 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); }