diff options
Diffstat (limited to 'trafgen_l2.c')
| -rw-r--r-- | trafgen_l2.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/trafgen_l2.c b/trafgen_l2.c index 8d2d285..b27c9dd 100644 --- a/trafgen_l2.c +++ b/trafgen_l2.c @@ -31,6 +31,7 @@ static uint16_t pid_to_eth(enum proto_id pid) case PROTO_VLAN: return ETH_P_8021Q; case PROTO_PAUSE: + case PROTO_PFC: return ETH_P_PAUSE; default: bug(); @@ -80,6 +81,46 @@ static struct proto_ops pause_proto_ops = { .header_init = pause_header_init, }; +static struct proto_field pfc_fields[] = { + { .id = PFC_OPCODE, .len = 2, .offset = 0 }, + { .id = PFC_PRIO, .len = 2, .offset = 2 }, + { .id = PFC_PRIO_0, .len = 2, .offset = 2, .mask = 0x0001 }, + { .id = PFC_PRIO_1, .len = 2, .offset = 2, .mask = 0x0002, .shift = 1 }, + { .id = PFC_PRIO_2, .len = 2, .offset = 2, .mask = 0x0004, .shift = 2 }, + { .id = PFC_PRIO_3, .len = 2, .offset = 2, .mask = 0x0008, .shift = 3 }, + { .id = PFC_PRIO_4, .len = 2, .offset = 2, .mask = 0x0010, .shift = 4 }, + { .id = PFC_PRIO_5, .len = 2, .offset = 2, .mask = 0x0020, .shift = 5 }, + { .id = PFC_PRIO_6, .len = 2, .offset = 2, .mask = 0x0040, .shift = 6 }, + { .id = PFC_PRIO_7, .len = 2, .offset = 2, .mask = 0x0080, .shift = 7 }, + { .id = PFC_TIME_0, .len = 2, .offset = 4, }, + { .id = PFC_TIME_1, .len = 2, .offset = 6, }, + { .id = PFC_TIME_2, .len = 2, .offset = 8, }, + { .id = PFC_TIME_3, .len = 2, .offset = 10, }, + { .id = PFC_TIME_4, .len = 2, .offset = 12, }, + { .id = PFC_TIME_5, .len = 2, .offset = 14, }, + { .id = PFC_TIME_6, .len = 2, .offset = 16, }, + { .id = PFC_TIME_7, .len = 2, .offset = 18, }, +}; + +static void pfc_header_init(struct proto_hdr *hdr) +{ + uint8_t eth_dst[6] = { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x01 }; + + struct proto_hdr *lower; + + lower = proto_lower_default_add(hdr, PROTO_ETH); + proto_field_set_default_bytes(lower, ETH_DST_ADDR, eth_dst); + + proto_header_fields_add(hdr, pfc_fields, array_size(pfc_fields)); + proto_field_set_default_be16(hdr, PFC_OPCODE, 0x0101); +} + +static struct proto_ops pfc_proto_ops = { + .id = PROTO_PFC, + .layer = PROTO_L2, + .header_init = pfc_header_init, +}; + static struct proto_field vlan_fields[] = { /* TPID overlaps with Ethernet header and points to ether type */ { .id = VLAN_TPID, .len = 2, .offset = -2 }, @@ -194,6 +235,7 @@ void protos_l2_init(void) { proto_ops_register(ð_proto_ops); proto_ops_register(&pause_proto_ops); + proto_ops_register(&pfc_proto_ops); proto_ops_register(&vlan_proto_ops); proto_ops_register(&arp_proto_ops); proto_ops_register(&mpls_proto_ops); |