From: Maciej Gajdzica Date: Thu, 30 Apr 2015 12:02:34 +0000 (+0200) Subject: port: add IPv6 reassembly port X-Git-Tag: spdx-start~9186 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=50f54a84dfb78c678f442afc80cde84e9e34d664;p=dpdk.git port: add IPv6 reassembly port Added new port type - IPv6 reassembly port. Signed-off-by: Maciej Gajdzica Acked-by: Cristian Dumitrescu --- diff --git a/lib/librte_port/rte_port_ras.c b/lib/librte_port/rte_port_ras.c index b6ab67abab..5eb627acbf 100644 --- a/lib/librte_port/rte_port_ras.c +++ b/lib/librte_port/rte_port_ras.c @@ -39,33 +39,46 @@ #include "rte_port_ras.h" -#ifndef IPV4_RAS_N_BUCKETS -#define IPV4_RAS_N_BUCKETS 4094 +#ifndef RTE_PORT_RAS_N_BUCKETS +#define RTE_PORT_RAS_N_BUCKETS 4094 #endif -#ifndef IPV4_RAS_N_ENTRIES_PER_BUCKET -#define IPV4_RAS_N_ENTRIES_PER_BUCKET 8 +#ifndef RTE_PORT_RAS_N_ENTRIES_PER_BUCKET +#define RTE_PORT_RAS_N_ENTRIES_PER_BUCKET 8 #endif -#ifndef IPV4_RAS_N_ENTRIES -#define IPV4_RAS_N_ENTRIES (IPV4_RAS_N_BUCKETS * IPV4_RAS_N_ENTRIES_PER_BUCKET) +#ifndef RTE_PORT_RAS_N_ENTRIES +#define RTE_PORT_RAS_N_ENTRIES (RTE_PORT_RAS_N_BUCKETS * RTE_PORT_RAS_N_ENTRIES_PER_BUCKET) #endif -struct rte_port_ring_writer_ipv4_ras { +struct rte_port_ring_writer_ras; + +typedef void (*ras_op)( + struct rte_port_ring_writer_ras *p, + struct rte_mbuf *pkt); + +static void +process_ipv4(struct rte_port_ring_writer_ras *p, struct rte_mbuf *pkt); +static void +process_ipv6(struct rte_port_ring_writer_ras *p, struct rte_mbuf *pkt); + +struct rte_port_ring_writer_ras { struct rte_mbuf *tx_buf[RTE_PORT_IN_BURST_SIZE_MAX]; struct rte_ring *ring; uint32_t tx_burst_sz; uint32_t tx_buf_count; struct rte_ip_frag_tbl *frag_tbl; struct rte_ip_frag_death_row death_row; + + ras_op f_ras; }; static void * -rte_port_ring_writer_ipv4_ras_create(void *params, int socket_id) +rte_port_ring_writer_ras_create(void *params, int socket_id, int is_ipv4) { - struct rte_port_ring_writer_ipv4_ras_params *conf = - (struct rte_port_ring_writer_ipv4_ras_params *) params; - struct rte_port_ring_writer_ipv4_ras *port; + struct rte_port_ring_writer_ras_params *conf = + (struct rte_port_ring_writer_ras_params *) params; + struct rte_port_ring_writer_ras *port; uint64_t frag_cycles; /* Check input parameters */ @@ -97,9 +110,9 @@ rte_port_ring_writer_ipv4_ras_create(void *params, int socket_id) frag_cycles *= 100; port->frag_tbl = rte_ip_frag_table_create( - IPV4_RAS_N_BUCKETS, - IPV4_RAS_N_ENTRIES_PER_BUCKET, - IPV4_RAS_N_ENTRIES, + RTE_PORT_RAS_N_BUCKETS, + RTE_PORT_RAS_N_ENTRIES_PER_BUCKET, + RTE_PORT_RAS_N_ENTRIES, frag_cycles, socket_id); @@ -115,11 +128,25 @@ rte_port_ring_writer_ipv4_ras_create(void *params, int socket_id) port->tx_burst_sz = conf->tx_burst_sz; port->tx_buf_count = 0; + port->f_ras = (is_ipv4 == 0) ? process_ipv4 : process_ipv6; + return port; } +static void * +rte_port_ring_writer_ipv4_ras_create(void *params, int socket_id) +{ + return rte_port_ring_writer_ras_create(params, socket_id, 1); +} + +static void * +rte_port_ring_writer_ipv6_ras_create(void *params, int socket_id) +{ + return rte_port_ring_writer_ras_create(params, socket_id, 0); +} + static inline void -send_burst(struct rte_port_ring_writer_ipv4_ras *p) +send_burst(struct rte_port_ring_writer_ras *p) { uint32_t nb_tx; @@ -132,8 +159,8 @@ send_burst(struct rte_port_ring_writer_ipv4_ras *p) p->tx_buf_count = 0; } -static inline void -process_one(struct rte_port_ring_writer_ipv4_ras *p, struct rte_mbuf *pkt) +static void +process_ipv4(struct rte_port_ring_writer_ras *p, struct rte_mbuf *pkt) { /* Assume there is no ethernet header */ struct ipv4_hdr *pkt_hdr = (struct ipv4_hdr *) @@ -153,7 +180,38 @@ process_one(struct rte_port_ring_writer_ipv4_ras *p, struct rte_mbuf *pkt) struct rte_ip_frag_death_row *dr = &p->death_row; /* Process this fragment */ - mo = rte_ipv4_frag_reassemble_packet(tbl, dr, pkt, rte_rdtsc(), pkt_hdr); + mo = rte_ipv4_frag_reassemble_packet(tbl, dr, pkt, rte_rdtsc(), + pkt_hdr); + if (mo != NULL) + p->tx_buf[p->tx_buf_count++] = mo; + + rte_ip_frag_free_death_row(&p->death_row, 3); + } +} + +static void +process_ipv6(struct rte_port_ring_writer_ras *p, struct rte_mbuf *pkt) +{ + /* Assume there is no ethernet header */ + struct ipv6_hdr *pkt_hdr = (struct ipv6_hdr *) + (rte_pktmbuf_mtod(pkt, unsigned char *)); + + struct ipv6_extension_fragment *frag_hdr; + frag_hdr = rte_ipv6_frag_get_ipv6_fragment_header(pkt_hdr); + uint16_t frag_offset = frag_hdr->frag_offset; + uint16_t frag_flag = frag_hdr->more_frags; + + /* If it is a fragmented packet, then try to reassemble */ + if ((frag_flag == 0) && (frag_offset == 0)) + p->tx_buf[p->tx_buf_count++] = pkt; + else { + struct rte_mbuf *mo; + struct rte_ip_frag_tbl *tbl = p->frag_tbl; + struct rte_ip_frag_death_row *dr = &p->death_row; + + /* Process this fragment */ + mo = rte_ipv6_frag_reassemble_packet(tbl, dr, pkt, rte_rdtsc(), pkt_hdr, + frag_hdr); if (mo != NULL) p->tx_buf[p->tx_buf_count++] = mo; @@ -162,12 +220,12 @@ process_one(struct rte_port_ring_writer_ipv4_ras *p, struct rte_mbuf *pkt) } static int -rte_port_ring_writer_ipv4_ras_tx(void *port, struct rte_mbuf *pkt) +rte_port_ring_writer_ras_tx(void *port, struct rte_mbuf *pkt) { - struct rte_port_ring_writer_ipv4_ras *p = - (struct rte_port_ring_writer_ipv4_ras *) port; + struct rte_port_ring_writer_ras *p = + (struct rte_port_ring_writer_ras *) port; - process_one(p, pkt); + p->f_ras(p, pkt); if (p->tx_buf_count >= p->tx_burst_sz) send_burst(p); @@ -175,12 +233,12 @@ rte_port_ring_writer_ipv4_ras_tx(void *port, struct rte_mbuf *pkt) } static int -rte_port_ring_writer_ipv4_ras_tx_bulk(void *port, +rte_port_ring_writer_ras_tx_bulk(void *port, struct rte_mbuf **pkts, uint64_t pkts_mask) { - struct rte_port_ring_writer_ipv4_ras *p = - (struct rte_port_ring_writer_ipv4_ras *) port; + struct rte_port_ring_writer_ras *p = + (struct rte_port_ring_writer_ras *) port; if ((pkts_mask & (pkts_mask + 1)) == 0) { uint64_t n_pkts = __builtin_popcountll(pkts_mask); @@ -189,7 +247,7 @@ rte_port_ring_writer_ipv4_ras_tx_bulk(void *port, for (i = 0; i < n_pkts; i++) { struct rte_mbuf *pkt = pkts[i]; - process_one(p, pkt); + p->f_ras(p, pkt); if (p->tx_buf_count >= p->tx_burst_sz) send_burst(p); } @@ -199,7 +257,7 @@ rte_port_ring_writer_ipv4_ras_tx_bulk(void *port, uint64_t pkt_mask = 1LLU << pkt_index; struct rte_mbuf *pkt = pkts[pkt_index]; - process_one(p, pkt); + p->f_ras(p, pkt); if (p->tx_buf_count >= p->tx_burst_sz) send_burst(p); @@ -211,10 +269,10 @@ rte_port_ring_writer_ipv4_ras_tx_bulk(void *port, } static int -rte_port_ring_writer_ipv4_ras_flush(void *port) +rte_port_ring_writer_ras_flush(void *port) { - struct rte_port_ring_writer_ipv4_ras *p = - (struct rte_port_ring_writer_ipv4_ras *) port; + struct rte_port_ring_writer_ras *p = + (struct rte_port_ring_writer_ras *) port; if (p->tx_buf_count > 0) send_burst(p); @@ -223,17 +281,17 @@ rte_port_ring_writer_ipv4_ras_flush(void *port) } static int -rte_port_ring_writer_ipv4_ras_free(void *port) +rte_port_ring_writer_ras_free(void *port) { - struct rte_port_ring_writer_ipv4_ras *p = - (struct rte_port_ring_writer_ipv4_ras *) port; + struct rte_port_ring_writer_ras *p = + (struct rte_port_ring_writer_ras *) port; if (port == NULL) { RTE_LOG(ERR, PORT, "%s: Parameter port is NULL\n", __func__); return -1; } - rte_port_ring_writer_ipv4_ras_flush(port); + rte_port_ring_writer_ras_flush(port); rte_ip_frag_table_destroy(p->frag_tbl); rte_free(port); @@ -245,8 +303,16 @@ rte_port_ring_writer_ipv4_ras_free(void *port) */ struct rte_port_out_ops rte_port_ring_writer_ipv4_ras_ops = { .f_create = rte_port_ring_writer_ipv4_ras_create, - .f_free = rte_port_ring_writer_ipv4_ras_free, - .f_tx = rte_port_ring_writer_ipv4_ras_tx, - .f_tx_bulk = rte_port_ring_writer_ipv4_ras_tx_bulk, - .f_flush = rte_port_ring_writer_ipv4_ras_flush, + .f_free = rte_port_ring_writer_ras_free, + .f_tx = rte_port_ring_writer_ras_tx, + .f_tx_bulk = rte_port_ring_writer_ras_tx_bulk, + .f_flush = rte_port_ring_writer_ras_flush, +}; + +struct rte_port_out_ops rte_port_ring_writer_ipv6_ras_ops = { + .f_create = rte_port_ring_writer_ipv6_ras_create, + .f_free = rte_port_ring_writer_ras_free, + .f_tx = rte_port_ring_writer_ras_tx, + .f_tx_bulk = rte_port_ring_writer_ras_tx_bulk, + .f_flush = rte_port_ring_writer_ras_flush, }; diff --git a/lib/librte_port/rte_port_ras.h b/lib/librte_port/rte_port_ras.h index c6ed688c51..5a16f831fd 100644 --- a/lib/librte_port/rte_port_ras.h +++ b/lib/librte_port/rte_port_ras.h @@ -64,7 +64,7 @@ extern "C" { #include "rte_port.h" /** ring_writer_ipv4_ras port parameters */ -struct rte_port_ring_writer_ipv4_ras_params { +struct rte_port_ring_writer_ras_params { /** Underlying single consumer ring that has to be pre-initialized. */ struct rte_ring *ring; @@ -73,9 +73,16 @@ struct rte_port_ring_writer_ipv4_ras_params { uint32_t tx_burst_sz; }; +#define rte_port_ring_writer_ipv4_ras_params rte_port_ring_writer_ras_params + +#define rte_port_ring_writer_ipv6_ras_params rte_port_ring_writer_ras_params + /** ring_writer_ipv4_ras port operations */ extern struct rte_port_out_ops rte_port_ring_writer_ipv4_ras_ops; +/** ring_writer_ipv6_ras port operations */ +extern struct rte_port_out_ops rte_port_ring_writer_ipv6_ras_ops; + #ifdef __cplusplus } #endif