X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_mbuf%2Frte_mbuf.c;h=0236fba76bbc5a6b50237e3777df0fb8de91845d;hb=c3a90c381daa68a0ea65906ad15bc96c247ac5cd;hp=207bf3dd32212bc3b5e214edbf2890f789364022;hpb=8f094a9ac5d7424e460bc85708e99aa255432a87;p=dpdk.git diff --git a/lib/librte_mbuf/rte_mbuf.c b/lib/librte_mbuf/rte_mbuf.c index 207bf3dd32..0236fba76b 100644 --- a/lib/librte_mbuf/rte_mbuf.c +++ b/lib/librte_mbuf/rte_mbuf.c @@ -1,35 +1,6 @@ -/*- - * 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 - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2014 Intel Corporation. + * Copyright 2014 6WIND S.A. */ #include @@ -42,11 +13,11 @@ #include #include +#include #include #include #include #include -#include #include #include #include @@ -55,26 +26,12 @@ #include #include #include +#include #include #include #include #include -/* - * ctrlmbuf constructor, given as a callback function to - * rte_mempool_obj_iter() or rte_mempool_create() - */ -void -rte_ctrlmbuf_init(struct rte_mempool *mp, - __attribute__((unused)) void *opaque_arg, - void *_m, - __attribute__((unused)) unsigned i) -{ - struct rte_mbuf *m = _m; - rte_pktmbuf_init(mp, opaque_arg, _m, i); - m->ol_flags |= CTRL_MBUF_FLAG; -} - /* * pktmbuf pool constructor, given as a callback function to * rte_mempool_create(), or called directly if using @@ -131,12 +88,11 @@ rte_pktmbuf_init(struct rte_mempool *mp, RTE_ASSERT(mp->elt_size >= mbuf_size); RTE_ASSERT(buf_len <= UINT16_MAX); - memset(m, 0, mp->elt_size); - + memset(m, 0, mbuf_size); /* 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_iova = rte_mempool_virt2iova(m) + mbuf_size; m->buf_len = (uint16_t)buf_len; /* keep some headroom between start of buffer and data */ @@ -145,19 +101,20 @@ rte_pktmbuf_init(struct rte_mempool *mp, /* init some constant fields */ m->pool = mp; m->nb_segs = 1; - m->port = 0xff; + m->port = MBUF_INVALID_PORT; rte_mbuf_refcnt_set(m, 1); m->next = NULL; } -/* helper to create a mbuf pool */ +/* Helper to create a mbuf pool with given mempool ops name*/ 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) +rte_pktmbuf_pool_create_by_ops(const char *name, unsigned int n, + unsigned int cache_size, uint16_t priv_size, uint16_t data_room_size, + int socket_id, const char *ops_name) { struct rte_mempool *mp; struct rte_pktmbuf_pool_private mbp_priv; + const char *mp_ops_name = ops_name; unsigned elt_size; int ret; @@ -177,8 +134,9 @@ rte_pktmbuf_pool_create(const char *name, unsigned n, if (mp == NULL) return NULL; - ret = rte_mempool_set_ops_byname(mp, - RTE_MBUF_DEFAULT_MEMPOOL_OPS, NULL); + if (mp_ops_name == NULL) + mp_ops_name = rte_mbuf_best_mempool_ops(); + ret = rte_mempool_set_ops_byname(mp, mp_ops_name, NULL); if (ret != 0) { RTE_LOG(ERR, MBUF, "error setting mempool handler\n"); rte_mempool_free(mp); @@ -199,40 +157,245 @@ rte_pktmbuf_pool_create(const char *name, unsigned n, return mp; } +/* helper to create a mbuf pool */ +struct rte_mempool * +rte_pktmbuf_pool_create(const char *name, unsigned int n, + unsigned int cache_size, uint16_t priv_size, uint16_t data_room_size, + int socket_id) +{ + return rte_pktmbuf_pool_create_by_ops(name, n, cache_size, priv_size, + data_room_size, socket_id, NULL); +} + /* do some sanity checks on a mbuf: panic if it fails */ void rte_mbuf_sanity_check(const struct rte_mbuf *m, int is_header) { - const struct rte_mbuf *m_seg; - unsigned nb_segs; + const char *reason; - if (m == NULL) - rte_panic("mbuf is NULL\n"); + if (rte_mbuf_check(m, is_header, &reason)) + rte_panic("%s\n", reason); +} + +int rte_mbuf_check(const struct rte_mbuf *m, int is_header, + const char **reason) +{ + unsigned int nb_segs, pkt_len; + + if (m == NULL) { + *reason = "mbuf is NULL"; + return -1; + } /* generic checks */ - if (m->pool == NULL) - rte_panic("bad mbuf pool\n"); - if (m->buf_physaddr == 0) - rte_panic("bad phys addr\n"); - if (m->buf_addr == NULL) - rte_panic("bad virt addr\n"); + if (m->pool == NULL) { + *reason = "bad mbuf pool"; + return -1; + } + if (m->buf_iova == 0) { + *reason = "bad IO addr"; + return -1; + } + if (m->buf_addr == NULL) { + *reason = "bad virt addr"; + return -1; + } uint16_t cnt = rte_mbuf_refcnt_read(m); - if ((cnt == 0) || (cnt == UINT16_MAX)) - rte_panic("bad ref cnt\n"); + if ((cnt == 0) || (cnt == UINT16_MAX)) { + *reason = "bad ref cnt"; + return -1; + } /* nothing to check for sub-segments */ if (is_header == 0) - return; + return 0; + + /* data_len is supposed to be not more than pkt_len */ + if (m->data_len > m->pkt_len) { + *reason = "bad data_len"; + return -1; + } nb_segs = m->nb_segs; - m_seg = m; - while (m_seg && nb_segs != 0) { - m_seg = m_seg->next; - nb_segs--; + pkt_len = m->pkt_len; + + do { + if (m->data_off > m->buf_len) { + *reason = "data offset too big in mbuf segment"; + return -1; + } + if (m->data_off + m->data_len > m->buf_len) { + *reason = "data length too big in mbuf segment"; + return -1; + } + nb_segs -= 1; + pkt_len -= m->data_len; + } while ((m = m->next) != NULL); + + if (nb_segs) { + *reason = "bad nb_segs"; + return -1; } - if (nb_segs != 0) - rte_panic("bad nb_segs\n"); + if (pkt_len) { + *reason = "bad pkt_len"; + return -1; + } + + return 0; +} + +/* Creates a shallow copy of mbuf */ +struct rte_mbuf * +rte_pktmbuf_clone(struct rte_mbuf *md, struct rte_mempool *mp) +{ + struct rte_mbuf *mc, *mi, **prev; + uint32_t pktlen; + uint16_t nseg; + + mc = rte_pktmbuf_alloc(mp); + if (unlikely(mc == NULL)) + return NULL; + + mi = mc; + prev = &mi->next; + pktlen = md->pkt_len; + nseg = 0; + + do { + nseg++; + rte_pktmbuf_attach(mi, md); + *prev = mi; + prev = &mi->next; + } while ((md = md->next) != NULL && + (mi = rte_pktmbuf_alloc(mp)) != NULL); + + *prev = NULL; + mc->nb_segs = nseg; + mc->pkt_len = pktlen; + + /* Allocation of new indirect segment failed */ + if (unlikely(mi == NULL)) { + rte_pktmbuf_free(mc); + return NULL; + } + + __rte_mbuf_sanity_check(mc, 1); + return mc; +} + +/* convert multi-segment mbuf to single mbuf */ +int +__rte_pktmbuf_linearize(struct rte_mbuf *mbuf) +{ + size_t seg_len, copy_len; + struct rte_mbuf *m; + struct rte_mbuf *m_next; + char *buffer; + + /* Extend first segment to the total packet length */ + copy_len = rte_pktmbuf_pkt_len(mbuf) - rte_pktmbuf_data_len(mbuf); + + if (unlikely(copy_len > rte_pktmbuf_tailroom(mbuf))) + return -1; + + buffer = rte_pktmbuf_mtod_offset(mbuf, char *, mbuf->data_len); + mbuf->data_len = (uint16_t)(mbuf->pkt_len); + + /* Append data from next segments to the first one */ + m = mbuf->next; + while (m != NULL) { + m_next = m->next; + + seg_len = rte_pktmbuf_data_len(m); + rte_memcpy(buffer, rte_pktmbuf_mtod(m, char *), seg_len); + buffer += seg_len; + + rte_pktmbuf_free_seg(m); + m = m_next; + } + + mbuf->next = NULL; + mbuf->nb_segs = 1; + + return 0; +} + +/* Create a deep copy of mbuf */ +struct rte_mbuf * +rte_pktmbuf_copy(const struct rte_mbuf *m, struct rte_mempool *mp, + uint32_t off, uint32_t len) +{ + const struct rte_mbuf *seg = m; + struct rte_mbuf *mc, *m_last, **prev; + + /* garbage in check */ + __rte_mbuf_sanity_check(m, 1); + + /* check for request to copy at offset past end of mbuf */ + if (unlikely(off >= m->pkt_len)) + return NULL; + + mc = rte_pktmbuf_alloc(mp); + if (unlikely(mc == NULL)) + return NULL; + + /* truncate requested length to available data */ + if (len > m->pkt_len - off) + len = m->pkt_len - off; + + __rte_pktmbuf_copy_hdr(mc, m); + + /* copied mbuf is not indirect or external */ + mc->ol_flags = m->ol_flags & ~(IND_ATTACHED_MBUF|EXT_ATTACHED_MBUF); + + prev = &mc->next; + m_last = mc; + while (len > 0) { + uint32_t copy_len; + + /* skip leading mbuf segments */ + while (off >= seg->data_len) { + off -= seg->data_len; + seg = seg->next; + } + + /* current buffer is full, chain a new one */ + if (rte_pktmbuf_tailroom(m_last) == 0) { + m_last = rte_pktmbuf_alloc(mp); + if (unlikely(m_last == NULL)) { + rte_pktmbuf_free(mc); + return NULL; + } + ++mc->nb_segs; + *prev = m_last; + prev = &m_last->next; + } + + /* + * copy the min of data in input segment (seg) + * vs space available in output (m_last) + */ + copy_len = RTE_MIN(seg->data_len - off, len); + if (copy_len > rte_pktmbuf_tailroom(m_last)) + copy_len = rte_pktmbuf_tailroom(m_last); + + /* append from seg to m_last */ + rte_memcpy(rte_pktmbuf_mtod_offset(m_last, char *, + m_last->data_len), + rte_pktmbuf_mtod_offset(seg, char *, off), + copy_len); + + /* update offsets and lengths */ + m_last->data_len += copy_len; + mc->pkt_len += copy_len; + off += copy_len; + len -= copy_len; + } + + /* garbage out check */ + __rte_mbuf_sanity_check(mc, 1); + return mc; } /* dump a mbuf on console */ @@ -240,12 +403,12 @@ void rte_pktmbuf_dump(FILE *f, const struct rte_mbuf *m, unsigned dump_len) { unsigned int len; - unsigned nb_segs; + unsigned int nb_segs; __rte_mbuf_sanity_check(m, 1); - fprintf(f, "dump mbuf at %p, phys=%"PRIx64", buf_len=%u\n", - m, (uint64_t)m->buf_physaddr, (unsigned)m->buf_len); + fprintf(f, "dump mbuf at %p, iova=%"PRIx64", buf_len=%u\n", + m, (uint64_t)m->buf_iova, (unsigned)m->buf_len); 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); @@ -308,7 +471,7 @@ const void *__rte_pktmbuf_read(const struct rte_mbuf *m, uint32_t off, 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_VLAN: return "PKT_RX_VLAN"; 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"; @@ -321,8 +484,19 @@ const char *rte_get_rx_ol_flag_name(uint64_t mask) case PKT_RX_VLAN_STRIPPED: return "PKT_RX_VLAN_STRIPPED"; case PKT_RX_IEEE1588_PTP: return "PKT_RX_IEEE1588_PTP"; case PKT_RX_IEEE1588_TMST: return "PKT_RX_IEEE1588_TMST"; + case PKT_RX_FDIR_ID: return "PKT_RX_FDIR_ID"; + case PKT_RX_FDIR_FLX: return "PKT_RX_FDIR_FLX"; case PKT_RX_QINQ_STRIPPED: return "PKT_RX_QINQ_STRIPPED"; + case PKT_RX_QINQ: return "PKT_RX_QINQ"; case PKT_RX_LRO: return "PKT_RX_LRO"; + case PKT_RX_TIMESTAMP: return "PKT_RX_TIMESTAMP"; + case PKT_RX_SEC_OFFLOAD: return "PKT_RX_SEC_OFFLOAD"; + case PKT_RX_SEC_OFFLOAD_FAILED: return "PKT_RX_SEC_OFFLOAD_FAILED"; + case PKT_RX_OUTER_L4_CKSUM_BAD: return "PKT_RX_OUTER_L4_CKSUM_BAD"; + case PKT_RX_OUTER_L4_CKSUM_GOOD: return "PKT_RX_OUTER_L4_CKSUM_GOOD"; + case PKT_RX_OUTER_L4_CKSUM_INVALID: + return "PKT_RX_OUTER_L4_CKSUM_INVALID"; + default: return NULL; } } @@ -338,7 +512,7 @@ int rte_get_rx_ol_flag_list(uint64_t mask, char *buf, size_t buflen) { const struct flag_mask rx_flags[] = { - { PKT_RX_VLAN_PKT, PKT_RX_VLAN_PKT, NULL }, + { PKT_RX_VLAN, PKT_RX_VLAN, NULL }, { PKT_RX_RSS_HASH, PKT_RX_RSS_HASH, NULL }, { PKT_RX_FDIR, PKT_RX_FDIR, NULL }, { PKT_RX_L4_CKSUM_BAD, PKT_RX_L4_CKSUM_MASK, NULL }, @@ -355,8 +529,21 @@ rte_get_rx_ol_flag_list(uint64_t mask, char *buf, size_t buflen) { PKT_RX_VLAN_STRIPPED, PKT_RX_VLAN_STRIPPED, NULL }, { PKT_RX_IEEE1588_PTP, PKT_RX_IEEE1588_PTP, NULL }, { PKT_RX_IEEE1588_TMST, PKT_RX_IEEE1588_TMST, NULL }, + { PKT_RX_FDIR_ID, PKT_RX_FDIR_ID, NULL }, + { PKT_RX_FDIR_FLX, PKT_RX_FDIR_FLX, NULL }, { PKT_RX_QINQ_STRIPPED, PKT_RX_QINQ_STRIPPED, NULL }, { PKT_RX_LRO, PKT_RX_LRO, NULL }, + { PKT_RX_TIMESTAMP, PKT_RX_TIMESTAMP, NULL }, + { PKT_RX_SEC_OFFLOAD, PKT_RX_SEC_OFFLOAD, NULL }, + { PKT_RX_SEC_OFFLOAD_FAILED, PKT_RX_SEC_OFFLOAD_FAILED, NULL }, + { PKT_RX_QINQ, PKT_RX_QINQ, NULL }, + { PKT_RX_OUTER_L4_CKSUM_BAD, PKT_RX_OUTER_L4_CKSUM_MASK, NULL }, + { PKT_RX_OUTER_L4_CKSUM_GOOD, PKT_RX_OUTER_L4_CKSUM_MASK, + NULL }, + { PKT_RX_OUTER_L4_CKSUM_INVALID, PKT_RX_OUTER_L4_CKSUM_MASK, + NULL }, + { PKT_RX_OUTER_L4_CKSUM_UNKNOWN, PKT_RX_OUTER_L4_CKSUM_MASK, + "PKT_RX_OUTER_L4_CKSUM_UNKNOWN" }, }; const char *name; unsigned int i; @@ -391,7 +578,7 @@ rte_get_rx_ol_flag_list(uint64_t mask, char *buf, size_t buflen) 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_VLAN: return "PKT_TX_VLAN"; 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"; @@ -407,7 +594,16 @@ const char *rte_get_tx_ol_flag_name(uint64_t mask) case PKT_TX_TUNNEL_GRE: return "PKT_TX_TUNNEL_GRE"; case PKT_TX_TUNNEL_IPIP: return "PKT_TX_TUNNEL_IPIP"; case PKT_TX_TUNNEL_GENEVE: return "PKT_TX_TUNNEL_GENEVE"; + case PKT_TX_TUNNEL_MPLSINUDP: return "PKT_TX_TUNNEL_MPLSINUDP"; + case PKT_TX_TUNNEL_VXLAN_GPE: return "PKT_TX_TUNNEL_VXLAN_GPE"; + case PKT_TX_TUNNEL_IP: return "PKT_TX_TUNNEL_IP"; + case PKT_TX_TUNNEL_UDP: return "PKT_TX_TUNNEL_UDP"; + case PKT_TX_QINQ: return "PKT_TX_QINQ"; case PKT_TX_MACSEC: return "PKT_TX_MACSEC"; + case PKT_TX_SEC_OFFLOAD: return "PKT_TX_SEC_OFFLOAD"; + case PKT_TX_UDP_SEG: return "PKT_TX_UDP_SEG"; + case PKT_TX_OUTER_UDP_CKSUM: return "PKT_TX_OUTER_UDP_CKSUM"; + case PKT_TX_METADATA: return "PKT_TX_METADATA"; default: return NULL; } } @@ -417,7 +613,7 @@ int rte_get_tx_ol_flag_list(uint64_t mask, char *buf, size_t buflen) { const struct flag_mask tx_flags[] = { - { PKT_TX_VLAN_PKT, PKT_TX_VLAN_PKT, NULL }, + { PKT_TX_VLAN, PKT_TX_VLAN, NULL }, { PKT_TX_IP_CKSUM, PKT_TX_IP_CKSUM, NULL }, { PKT_TX_TCP_CKSUM, PKT_TX_L4_MASK, NULL }, { PKT_TX_SCTP_CKSUM, PKT_TX_L4_MASK, NULL }, @@ -430,15 +626,20 @@ rte_get_tx_ol_flag_list(uint64_t mask, char *buf, size_t buflen) { PKT_TX_OUTER_IP_CKSUM, PKT_TX_OUTER_IP_CKSUM, NULL }, { PKT_TX_OUTER_IPV4, PKT_TX_OUTER_IPV4, NULL }, { PKT_TX_OUTER_IPV6, PKT_TX_OUTER_IPV6, NULL }, - { PKT_TX_TUNNEL_VXLAN, PKT_TX_TUNNEL_MASK, - "PKT_TX_TUNNEL_NONE" }, - { PKT_TX_TUNNEL_GRE, PKT_TX_TUNNEL_MASK, - "PKT_TX_TUNNEL_NONE" }, - { PKT_TX_TUNNEL_IPIP, PKT_TX_TUNNEL_MASK, - "PKT_TX_TUNNEL_NONE" }, - { PKT_TX_TUNNEL_GENEVE, PKT_TX_TUNNEL_MASK, - "PKT_TX_TUNNEL_NONE" }, + { PKT_TX_TUNNEL_VXLAN, PKT_TX_TUNNEL_MASK, NULL }, + { PKT_TX_TUNNEL_GRE, PKT_TX_TUNNEL_MASK, NULL }, + { PKT_TX_TUNNEL_IPIP, PKT_TX_TUNNEL_MASK, NULL }, + { PKT_TX_TUNNEL_GENEVE, PKT_TX_TUNNEL_MASK, NULL }, + { PKT_TX_TUNNEL_MPLSINUDP, PKT_TX_TUNNEL_MASK, NULL }, + { PKT_TX_TUNNEL_VXLAN_GPE, PKT_TX_TUNNEL_MASK, NULL }, + { PKT_TX_TUNNEL_IP, PKT_TX_TUNNEL_MASK, NULL }, + { PKT_TX_TUNNEL_UDP, PKT_TX_TUNNEL_MASK, NULL }, + { PKT_TX_QINQ, PKT_TX_QINQ, NULL }, { PKT_TX_MACSEC, PKT_TX_MACSEC, NULL }, + { PKT_TX_SEC_OFFLOAD, PKT_TX_SEC_OFFLOAD, NULL }, + { PKT_TX_UDP_SEG, PKT_TX_UDP_SEG, NULL }, + { PKT_TX_OUTER_UDP_CKSUM, PKT_TX_OUTER_UDP_CKSUM, NULL }, + { PKT_TX_METADATA, PKT_TX_METADATA, NULL }, }; const char *name; unsigned int i;