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authorDeepak S <deepak.s@linux.intel.com>2018-01-16 12:51:25 +0000
committerGerrit Code Review <gerrit@opnfv.org>2018-01-16 12:51:25 +0000
commit0249d9c01370221b724d794a3d048b01a9dd325b (patch)
tree8f854c3aacbb3bf7b6177e5b4a05ad431fc2e209 /VNFs/DPPD-PROX/handle_l2fwd.c
parentbc200c70803eaf5e9357f217e800e58ca6163f48 (diff)
parent35bf01ebc2139ad51caa77c22f5e67f8709e699f (diff)
Merge "Add config option to use port mac as src mac in l2fwd and swap"
Diffstat (limited to 'VNFs/DPPD-PROX/handle_l2fwd.c')
-rw-r--r--VNFs/DPPD-PROX/handle_l2fwd.c28
1 files changed, 17 insertions, 11 deletions
diff --git a/VNFs/DPPD-PROX/handle_l2fwd.c b/VNFs/DPPD-PROX/handle_l2fwd.c
index 79a5f02e..faebe6fb 100644
--- a/VNFs/DPPD-PROX/handle_l2fwd.c
+++ b/VNFs/DPPD-PROX/handle_l2fwd.c
@@ -69,17 +69,21 @@ static void init_task_l2fwd(struct task_base *tbase, struct task_args *targ)
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) {
@@ -92,6 +96,8 @@ static void init_task_l2fwd(struct task_base *tbase, struct task_args *targ)
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;