diff options
Diffstat (limited to 'VNFs/DPPD-PROX/handle_mirror.c')
| -rw-r--r-- | VNFs/DPPD-PROX/handle_mirror.c | 49 |
1 files changed, 39 insertions, 10 deletions
diff --git a/VNFs/DPPD-PROX/handle_mirror.c b/VNFs/DPPD-PROX/handle_mirror.c index 0d764b4d..73a5242c 100644 --- a/VNFs/DPPD-PROX/handle_mirror.c +++ b/VNFs/DPPD-PROX/handle_mirror.c @@ -24,6 +24,8 @@ #include "log.h" #include "prox_port_cfg.h" #include "quit.h" +#include "prox_cksum.h" +#include "prefetch.h" /* Task that sends packets to multiple outputs. Note that in case of n outputs, the output packet rate is n times the input packet @@ -34,7 +36,9 @@ way to resolve this is to create deep copies of the packet. */ struct task_mirror { struct task_base base; - uint32_t n_dests; + uint32_t n_dests; + uint32_t multiplier; + uint32_t mirror_size; }; struct task_mirror_copy { @@ -55,14 +59,40 @@ static int handle_mirror_bulk(struct task_base *tbase, struct rte_mbuf **mbufs, multiple times, the pointers are copied first. This copy is used in each call to tx_pkt below. */ rte_memcpy(mbufs2, mbufs, sizeof(mbufs[0]) * n_pkts); - + /* prefetch for optimization */ + prox_rte_ether_hdr * hdr[MAX_PKT_BURST]; + for (uint16_t j = 0; j < n_pkts; ++j) { + PREFETCH0(mbufs2[j]); + } for (uint16_t j = 0; j < n_pkts; ++j) { - rte_pktmbuf_refcnt_update(mbufs2[j], task->n_dests - 1); + hdr[j] = rte_pktmbuf_mtod(mbufs2[j], prox_rte_ether_hdr *); + PREFETCH0(hdr[j]); + } + for (uint16_t j = 0; j < n_pkts; ++j) { + rte_pktmbuf_refcnt_update(mbufs2[j], task->n_dests * task->multiplier - 1); + prox_rte_ipv4_hdr *pip = (prox_rte_ipv4_hdr *) (hdr[j] + 1); + if ((task->mirror_size != 0) && (hdr[j]->ether_type == ETYPE_IPv4) && ((pip->next_proto_id == IPPROTO_UDP) || (pip->next_proto_id == IPPROTO_TCP))) { + rte_pktmbuf_pkt_len(mbufs2[j]) = task->mirror_size; + rte_pktmbuf_data_len(mbufs2[j]) = task->mirror_size; + pip->total_length = rte_bswap16(task->mirror_size-sizeof(prox_rte_ether_hdr)); + pip->hdr_checksum = 0; + prox_ip_cksum_sw(pip); + int l4_len = task->mirror_size - sizeof(prox_rte_ether_hdr) - sizeof(prox_rte_ipv4_hdr); + if (pip->next_proto_id == IPPROTO_UDP) { + prox_rte_udp_hdr *udp = (prox_rte_udp_hdr *)(((uint8_t *)pip) + sizeof(prox_rte_ipv4_hdr)); + udp->dgram_len = rte_bswap16(l4_len); + prox_udp_cksum_sw(udp, l4_len, pip->src_addr, pip->dst_addr); + } else if (pip->next_proto_id == IPPROTO_TCP) { + prox_rte_tcp_hdr *tcp = (prox_rte_tcp_hdr *)(((uint8_t *)pip) + sizeof(prox_rte_ipv4_hdr)); + prox_tcp_cksum_sw(tcp, l4_len, pip->src_addr, pip->dst_addr); + } + } } for (uint16_t j = 0; j < task->n_dests; ++j) { memset(out, j, n_pkts); - - ret+= task->base.tx_pkt(&task->base, mbufs2, n_pkts, out); + for (uint16_t i = 0; i < task->multiplier; ++i) { + ret += task->base.tx_pkt(&task->base, mbufs2, n_pkts, out); + } } return ret; } @@ -110,8 +140,9 @@ static int handle_mirror_bulk_copy(struct task_base *tbase, struct rte_mbuf **mb static void init_task_mirror(struct task_base *tbase, struct task_args *targ) { struct task_mirror *task = (struct task_mirror *)tbase; - task->n_dests = targ->nb_txports? targ->nb_txports : targ->nb_txrings; + task->multiplier = targ->multiplier? targ->multiplier : 1; + task->mirror_size = targ->mirror_size > 63? targ->mirror_size: 0; } static void init_task_mirror_copy(struct task_base *tbase, struct task_args *targ) @@ -139,9 +170,8 @@ static struct task_init task_init_mirror = { .mode_str = "mirror", .init = init_task_mirror, .handle = handle_mirror_bulk, - .flag_features = TASK_FEATURE_TXQ_FLAGS_NOOFFLOADS | TASK_FEATURE_TXQ_FLAGS_NOMULTSEGS | TASK_FEATURE_TXQ_FLAGS_REFCOUNT, + .flag_features = TASK_FEATURE_TXQ_FLAGS_NOOFFLOADS | TASK_FEATURE_TXQ_FLAGS_REFCOUNT, .size = sizeof(struct task_mirror), - .mbuf_size = 2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM, }; static struct task_init task_init_mirror2 = { @@ -149,9 +179,8 @@ static struct task_init task_init_mirror2 = { .sub_mode_str = "copy", .init = init_task_mirror_copy, .handle = handle_mirror_bulk_copy, - .flag_features = TASK_FEATURE_TXQ_FLAGS_NOOFFLOADS | TASK_FEATURE_TXQ_FLAGS_NOMULTSEGS, + .flag_features = TASK_FEATURE_TXQ_FLAGS_NOOFFLOADS, .size = sizeof(struct task_mirror), - .mbuf_size = 2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM, }; __attribute__((constructor)) static void reg_task_mirror(void) |