X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_mbuf%2Frte_mbuf.c;h=dc0467c96a2c8ee3a666d73e1eb937b332df30ac;hb=03600dd583af60c1cb454ee5e8e9f2118269545d;hp=09d8934eeaee9ebb0e3d45d70a7b8db51be7e7db;hpb=3031749c2df04a63cdcef186dcce3781e61436e8;p=dpdk.git diff --git a/lib/librte_mbuf/rte_mbuf.c b/lib/librte_mbuf/rte_mbuf.c index 09d8934eea..dc0467c96a 100644 --- a/lib/librte_mbuf/rte_mbuf.c +++ b/lib/librte_mbuf/rte_mbuf.c @@ -2,6 +2,7 @@ * BSD LICENSE * * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * Copyright 2014 6WIND S.A. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -47,7 +48,6 @@ #include #include #include -#include #include #include #include @@ -58,6 +58,7 @@ #include #include #include +#include /* * ctrlmbuf constructor, given as a callback function to @@ -65,24 +66,13 @@ */ void rte_ctrlmbuf_init(struct rte_mempool *mp, - __attribute__((unused)) void *opaque_arg, - void *_m, - __attribute__((unused)) unsigned i) + __attribute__((unused)) void *opaque_arg, + void *_m, + __attribute__((unused)) unsigned i) { struct rte_mbuf *m = _m; - - memset(m, 0, mp->elt_size); - - /* start of buffer is just after mbuf structure */ - m->buf_addr = (char *)m + sizeof(struct rte_mbuf); - m->buf_physaddr = rte_mempool_virt2phy(mp, m) + - sizeof(struct rte_mbuf); - m->buf_len = (uint16_t) (mp->elt_size - sizeof(struct rte_mbuf)); - - /* init some constant fields */ - m->type = RTE_MBUF_CTRL; - m->ctrl.data = (char *)m->buf_addr; - m->pool = (struct rte_mempool *)mp; + rte_pktmbuf_init(mp, opaque_arg, _m, i); + m->ol_flags |= CTRL_MBUF_FLAG; } /* @@ -92,17 +82,30 @@ rte_ctrlmbuf_init(struct rte_mempool *mp, void rte_pktmbuf_pool_init(struct rte_mempool *mp, void *opaque_arg) { - struct rte_pktmbuf_pool_private *mbp_priv; + struct rte_pktmbuf_pool_private *user_mbp_priv, *mbp_priv; + struct rte_pktmbuf_pool_private default_mbp_priv; uint16_t roomsz; - mbp_priv = rte_mempool_get_priv(mp); - roomsz = (uint16_t)(uintptr_t)opaque_arg; + RTE_MBUF_ASSERT(mp->elt_size >= sizeof(struct rte_mbuf)); + + /* if no structure is provided, assume no mbuf private area */ + user_mbp_priv = opaque_arg; + if (user_mbp_priv == NULL) { + default_mbp_priv.mbuf_priv_size = 0; + if (mp->elt_size > sizeof(struct rte_mbuf)) + roomsz = mp->elt_size - sizeof(struct rte_mbuf); + else + roomsz = 0; + default_mbp_priv.mbuf_data_room_size = roomsz; + user_mbp_priv = &default_mbp_priv; + } - /* Use default data room size. */ - if (0 == roomsz) - roomsz = 2048 + RTE_PKTMBUF_HEADROOM; + RTE_MBUF_ASSERT(mp->elt_size >= sizeof(struct rte_mbuf) + + user_mbp_priv->mbuf_data_room_size + + user_mbp_priv->mbuf_priv_size); - mbp_priv->mbuf_data_room_size = roomsz; + mbp_priv = rte_mempool_get_priv(mp); + memcpy(mbp_priv, user_mbp_priv, sizeof(*mbp_priv)); } /* @@ -117,40 +120,68 @@ rte_pktmbuf_init(struct rte_mempool *mp, __attribute__((unused)) unsigned i) { struct rte_mbuf *m = _m; - uint32_t buf_len = mp->elt_size - sizeof(struct rte_mbuf); + uint32_t mbuf_size, buf_len, priv_size; - RTE_MBUF_ASSERT(mp->elt_size >= sizeof(struct rte_mbuf)); + priv_size = rte_pktmbuf_priv_size(mp); + mbuf_size = sizeof(struct rte_mbuf) + priv_size; + buf_len = rte_pktmbuf_data_room_size(mp); + + RTE_MBUF_ASSERT(RTE_ALIGN(priv_size, RTE_MBUF_PRIV_ALIGN) == priv_size); + RTE_MBUF_ASSERT(mp->elt_size >= mbuf_size); + RTE_MBUF_ASSERT(buf_len <= UINT16_MAX); memset(m, 0, mp->elt_size); - /* start of buffer is just after mbuf structure */ - m->buf_addr = (char *)m + sizeof(struct rte_mbuf); - m->buf_physaddr = rte_mempool_virt2phy(mp, m) + - sizeof(struct rte_mbuf); + /* start of buffer is after mbuf structure and priv data */ + m->priv_size = priv_size; + m->buf_addr = (char *)m + mbuf_size; + m->buf_physaddr = rte_mempool_virt2phy(mp, m) + mbuf_size; m->buf_len = (uint16_t)buf_len; /* keep some headroom between start of buffer and data */ - m->pkt.data = (char*) m->buf_addr + RTE_MIN(RTE_PKTMBUF_HEADROOM, m->buf_len); + m->data_off = RTE_MIN(RTE_PKTMBUF_HEADROOM, (uint16_t)m->buf_len); /* init some constant fields */ - m->type = RTE_MBUF_PKT; m->pool = mp; - m->pkt.nb_segs = 1; - m->pkt.in_port = 0xff; + m->nb_segs = 1; + m->port = 0xff; +} + +/* helper to create a mbuf pool */ +struct rte_mempool * +rte_pktmbuf_pool_create(const char *name, unsigned n, + unsigned cache_size, uint16_t priv_size, uint16_t data_room_size, + int socket_id) +{ + struct rte_pktmbuf_pool_private mbp_priv; + unsigned elt_size; + + if (RTE_ALIGN(priv_size, RTE_MBUF_PRIV_ALIGN) != priv_size) { + RTE_LOG(ERR, MBUF, "mbuf priv_size=%u is not aligned\n", + priv_size); + rte_errno = EINVAL; + return NULL; + } + elt_size = sizeof(struct rte_mbuf) + (unsigned)priv_size + + (unsigned)data_room_size; + mbp_priv.mbuf_data_room_size = data_room_size; + mbp_priv.mbuf_priv_size = priv_size; + + return rte_mempool_create(name, n, elt_size, + cache_size, sizeof(struct rte_pktmbuf_pool_private), + rte_pktmbuf_pool_init, &mbp_priv, rte_pktmbuf_init, NULL, + socket_id, 0); } /* do some sanity checks on a mbuf: panic if it fails */ void -rte_mbuf_sanity_check(const struct rte_mbuf *m, enum rte_mbuf_type t, - int is_header) +rte_mbuf_sanity_check(const struct rte_mbuf *m, int is_header) { const struct rte_mbuf *m_seg; unsigned nb_segs; if (m == NULL) rte_panic("mbuf is NULL\n"); - if (m->type != (uint8_t)t) - rte_panic("bad mbuf type\n"); /* generic checks */ if (m->pool == NULL) @@ -160,35 +191,22 @@ rte_mbuf_sanity_check(const struct rte_mbuf *m, enum rte_mbuf_type t, if (m->buf_addr == NULL) rte_panic("bad virt addr\n"); -#ifdef RTE_MBUF_SCATTER_GATHER uint16_t cnt = rte_mbuf_refcnt_read(m); if ((cnt == 0) || (cnt == UINT16_MAX)) rte_panic("bad ref cnt\n"); -#endif - /* nothing to check for ctrl messages */ - if (m->type == RTE_MBUF_CTRL) + /* nothing to check for sub-segments */ + if (is_header == 0) return; - /* check pkt consistency */ - else if (m->type == RTE_MBUF_PKT) { - - /* nothing to check for sub-segments */ - if (is_header == 0) - return; - - nb_segs = m->pkt.nb_segs; - m_seg = m; - while (m_seg && nb_segs != 0) { - m_seg = m_seg->pkt.next; - nb_segs --; - } - if (nb_segs != 0) - rte_panic("bad nb_segs\n"); - return; + nb_segs = m->nb_segs; + m_seg = m; + while (m_seg && nb_segs != 0) { + m_seg = m_seg->next; + nb_segs--; } - - rte_panic("unknown mbuf type\n"); + if (nb_segs != 0) + rte_panic("bad nb_segs\n"); } /* dump a mbuf on console */ @@ -198,27 +216,73 @@ rte_pktmbuf_dump(FILE *f, const struct rte_mbuf *m, unsigned dump_len) unsigned int len; unsigned nb_segs; - __rte_mbuf_sanity_check(m, RTE_MBUF_PKT, 1); + __rte_mbuf_sanity_check(m, 1); fprintf(f, "dump mbuf at 0x%p, phys=%"PRIx64", buf_len=%u\n", m, (uint64_t)m->buf_physaddr, (unsigned)m->buf_len); - fprintf(f, " pkt_len=%"PRIu32", ol_flags=%"PRIx16", nb_segs=%u, " - "in_port=%u\n", m->pkt.pkt_len, m->ol_flags, - (unsigned)m->pkt.nb_segs, (unsigned)m->pkt.in_port); - nb_segs = m->pkt.nb_segs; + fprintf(f, " pkt_len=%"PRIu32", ol_flags=%"PRIx64", nb_segs=%u, " + "in_port=%u\n", m->pkt_len, m->ol_flags, + (unsigned)m->nb_segs, (unsigned)m->port); + nb_segs = m->nb_segs; while (m && nb_segs != 0) { - __rte_mbuf_sanity_check(m, RTE_MBUF_PKT, 0); + __rte_mbuf_sanity_check(m, 0); fprintf(f, " segment at 0x%p, data=0x%p, data_len=%u\n", - m, m->pkt.data, (unsigned)m->pkt.data_len); + m, rte_pktmbuf_mtod(m, void *), (unsigned)m->data_len); len = dump_len; - if (len > m->pkt.data_len) - len = m->pkt.data_len; + if (len > m->data_len) + len = m->data_len; if (len != 0) - rte_hexdump(f, NULL, m->pkt.data, len); + rte_hexdump(f, NULL, rte_pktmbuf_mtod(m, void *), len); dump_len -= len; - m = m->pkt.next; + m = m->next; nb_segs --; } } + +/* + * Get the name of a RX offload flag. Must be kept synchronized with flag + * definitions in rte_mbuf.h. + */ +const char *rte_get_rx_ol_flag_name(uint64_t mask) +{ + switch (mask) { + case PKT_RX_VLAN_PKT: return "PKT_RX_VLAN_PKT"; + case PKT_RX_RSS_HASH: return "PKT_RX_RSS_HASH"; + case PKT_RX_FDIR: return "PKT_RX_FDIR"; + case PKT_RX_L4_CKSUM_BAD: return "PKT_RX_L4_CKSUM_BAD"; + case PKT_RX_IP_CKSUM_BAD: return "PKT_RX_IP_CKSUM_BAD"; + case PKT_RX_EIP_CKSUM_BAD: return "PKT_RX_EIP_CKSUM_BAD"; + /* case PKT_RX_OVERSIZE: return "PKT_RX_OVERSIZE"; */ + /* case PKT_RX_HBUF_OVERFLOW: return "PKT_RX_HBUF_OVERFLOW"; */ + /* case PKT_RX_RECIP_ERR: return "PKT_RX_RECIP_ERR"; */ + /* case PKT_RX_MAC_ERR: return "PKT_RX_MAC_ERR"; */ + case PKT_RX_IEEE1588_PTP: return "PKT_RX_IEEE1588_PTP"; + case PKT_RX_IEEE1588_TMST: return "PKT_RX_IEEE1588_TMST"; + default: return NULL; + } +} + +/* + * Get the name of a TX offload flag. Must be kept synchronized with flag + * definitions in rte_mbuf.h. + */ +const char *rte_get_tx_ol_flag_name(uint64_t mask) +{ + switch (mask) { + case PKT_TX_VLAN_PKT: return "PKT_TX_VLAN_PKT"; + case PKT_TX_IP_CKSUM: return "PKT_TX_IP_CKSUM"; + case PKT_TX_TCP_CKSUM: return "PKT_TX_TCP_CKSUM"; + case PKT_TX_SCTP_CKSUM: return "PKT_TX_SCTP_CKSUM"; + case PKT_TX_UDP_CKSUM: return "PKT_TX_UDP_CKSUM"; + case PKT_TX_IEEE1588_TMST: return "PKT_TX_IEEE1588_TMST"; + case PKT_TX_TCP_SEG: return "PKT_TX_TCP_SEG"; + case PKT_TX_IPV4: return "PKT_TX_IPV4"; + case PKT_TX_IPV6: return "PKT_TX_IPV6"; + case PKT_TX_OUTER_IP_CKSUM: return "PKT_TX_OUTER_IP_CKSUM"; + case PKT_TX_OUTER_IPV4: return "PKT_TX_OUTER_IPV4"; + case PKT_TX_OUTER_IPV6: return "PKT_TX_OUTER_IPV6"; + default: return NULL; + } +}