struct ether_addr *src_addr, *dst_addr;
/*
- * Destination MAC can come from
- * - pre-configured mac in case 'dst mac=xx:xx:xx:xx:xx:xx' in config file
- * - src mac from the packet in case 'dst mac=packet' in config file
- * - not written in case 'dst mac=no' in config file
- * - (default - no 'dst mac') src mac from the packet
- * Source MAC can come from
- * - pre-configured mac in case 'src mac=xx:xx:xx:xx:xx:xx' in config file
- * - dst mac from the packet in case 'src mac=packet' in config file
- * - not written in case 'src mac=no' in config file
- * - (default - no 'src mac') if (tx_port) port mac
- * - (default - no 'src mac') if (no tx_port) dst mac from the packet
+ * The destination MAC of the outgoing packet is based on the config file:
+ * - 'dst mac=xx:xx:xx:xx:xx:xx' => the pre-configured mac will be used as dst mac
+ * - 'dst mac=packet' => the src mac of the incoming packet is used as dst mac
+ * - 'dst mac=no' => the dst mac is untouched
+ * - (default - no 'dst mac') => the src mac from the incoming packet is used as dst mac
+ *
+ * The source MAC of the outgoing packet is based on the config file:
+ * - 'src mac=xx:xx:xx:xx:xx:xx' => the pre-configured mac will be used as src mac
+ * - 'src mac=packet' => the dst mac of the incoming packet is used as src mac
+ * - 'src mac=hw' => the mac address of the tx port is used as src mac
+ * An error is returned if there are no physical tx ports
+ * - 'src mac=no' => the src mac is untouched
+ * - (default - no 'src mac') => if there is physical tx port, the mac of that port is used as src mac
+ * - (default - no 'src mac') if there are no physical tx ports the dst mac of the incoming packet
+ is used as src mac
*/
if (targ->flags & TASK_ARG_DST_MAC_SET) {
memcpy(&task->src_dst_mac[6], src_addr, sizeof(*dst_addr));
plog_info("\t\tCore %d: src mac set from config file\n", targ->lconf->id);
} else if ((targ->flags & TASK_ARG_DO_NOT_SET_SRC_MAC) == 0) {
+ if (targ->flags & TASK_ARG_HW_SRC_MAC)
+ PROX_PANIC(targ->nb_txports == 0, "src mac set to hw but no tx port\n");
if (targ->nb_txports) {
src_addr = &prox_port_cfg[task->base.tx_params_hw.tx_port_queue[0].port].eth_addr;
targ->flags |= TASK_ARG_SRC_MAC_SET;
.mode_str = "l2fwd",
.init = init_task_l2fwd,
.handle = handle_l2fwd_bulk,
- .flag_features = TASK_FEATURE_NEVER_DISCARDS|TASK_FEATURE_TXQ_FLAGS_NOOFFLOADS|TASK_FEATURE_TXQ_FLAGS_NOMULTSEGS,
+ .flag_features = TASK_FEATURE_NEVER_DISCARDS|TASK_FEATURE_TXQ_FLAGS_NOOFFLOADS,
.size = sizeof(struct task_l2fwd),
- .mbuf_size = 2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM,
};
__attribute__((constructor)) static void reg_task_l2fwd(void)