From 483eb2f56657e8e7f419ab1a4fab8dce9ade8609 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 20:24:20 +0200 Subject: Adding upstream version 14.2.21. Signed-off-by: Daniel Baumann --- src/seastar/dpdk/lib/librte_mbuf/rte_mbuf.c | 469 ++++++++++++++++++++++++++++ 1 file changed, 469 insertions(+) create mode 100644 src/seastar/dpdk/lib/librte_mbuf/rte_mbuf.c (limited to 'src/seastar/dpdk/lib/librte_mbuf/rte_mbuf.c') diff --git a/src/seastar/dpdk/lib/librte_mbuf/rte_mbuf.c b/src/seastar/dpdk/lib/librte_mbuf/rte_mbuf.c new file mode 100644 index 00000000..0e3e36a5 --- /dev/null +++ b/src/seastar/dpdk/lib/librte_mbuf/rte_mbuf.c @@ -0,0 +1,469 @@ +/*- + * 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. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#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 + * rte_mempool_create_empty()/rte_mempool_populate() + */ +void +rte_pktmbuf_pool_init(struct rte_mempool *mp, void *opaque_arg) +{ + struct rte_pktmbuf_pool_private *user_mbp_priv, *mbp_priv; + struct rte_pktmbuf_pool_private default_mbp_priv; + uint16_t roomsz; + + RTE_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; + } + + RTE_ASSERT(mp->elt_size >= sizeof(struct rte_mbuf) + + user_mbp_priv->mbuf_data_room_size + + user_mbp_priv->mbuf_priv_size); + + mbp_priv = rte_mempool_get_priv(mp); + memcpy(mbp_priv, user_mbp_priv, sizeof(*mbp_priv)); +} + +/* + * pktmbuf constructor, given as a callback function to + * rte_mempool_obj_iter() or rte_mempool_create(). + * Set the fields of a packet mbuf to their default values. + */ +void +rte_pktmbuf_init(struct rte_mempool *mp, + __attribute__((unused)) void *opaque_arg, + void *_m, + __attribute__((unused)) unsigned i) +{ + struct rte_mbuf *m = _m; + uint32_t mbuf_size, buf_len, priv_size; + + priv_size = rte_pktmbuf_priv_size(mp); + mbuf_size = sizeof(struct rte_mbuf) + priv_size; + buf_len = rte_pktmbuf_data_room_size(mp); + + RTE_ASSERT(RTE_ALIGN(priv_size, RTE_MBUF_PRIV_ALIGN) == priv_size); + RTE_ASSERT(mp->elt_size >= mbuf_size); + RTE_ASSERT(buf_len <= UINT16_MAX); + + memset(m, 0, mp->elt_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_len = (uint16_t)buf_len; + + /* keep some headroom between start of buffer and data */ + m->data_off = RTE_MIN(RTE_PKTMBUF_HEADROOM, (uint16_t)m->buf_len); + + /* init some constant fields */ + m->pool = mp; + m->nb_segs = 1; + m->port = 0xff; + rte_mbuf_refcnt_set(m, 1); + m->next = NULL; +} + +/* 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_mempool *mp; + struct rte_pktmbuf_pool_private mbp_priv; + unsigned elt_size; + int ret; + + 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; + + mp = rte_mempool_create_empty(name, n, elt_size, cache_size, + sizeof(struct rte_pktmbuf_pool_private), socket_id, 0); + if (mp == NULL) + return NULL; + + ret = rte_mempool_set_ops_byname(mp, + RTE_MBUF_DEFAULT_MEMPOOL_OPS, NULL); + if (ret != 0) { + RTE_LOG(ERR, MBUF, "error setting mempool handler\n"); + rte_mempool_free(mp); + rte_errno = -ret; + return NULL; + } + rte_pktmbuf_pool_init(mp, &mbp_priv); + + ret = rte_mempool_populate_default(mp); + if (ret < 0) { + rte_mempool_free(mp); + rte_errno = -ret; + return NULL; + } + + rte_mempool_obj_iter(mp, rte_pktmbuf_init, NULL); + + return mp; +} + +/* 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; + + if (m == NULL) + rte_panic("mbuf is NULL\n"); + + /* 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"); + + uint16_t cnt = rte_mbuf_refcnt_read(m); + if ((cnt == 0) || (cnt == UINT16_MAX)) + rte_panic("bad ref cnt\n"); + + /* nothing to check for sub-segments */ + if (is_header == 0) + return; + + nb_segs = m->nb_segs; + m_seg = m; + while (m_seg && nb_segs != 0) { + m_seg = m_seg->next; + nb_segs--; + } + if (nb_segs != 0) + rte_panic("bad nb_segs\n"); +} + +/* dump a mbuf on console */ +void +rte_pktmbuf_dump(FILE *f, const struct rte_mbuf *m, unsigned dump_len) +{ + unsigned int len; + unsigned 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, " 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, 0); + + fprintf(f, " segment at %p, data=%p, data_len=%u\n", + m, rte_pktmbuf_mtod(m, void *), (unsigned)m->data_len); + len = dump_len; + if (len > m->data_len) + len = m->data_len; + if (len != 0) + rte_hexdump(f, NULL, rte_pktmbuf_mtod(m, void *), len); + dump_len -= len; + m = m->next; + nb_segs --; + } +} + +/* read len data bytes in a mbuf at specified offset (internal) */ +const void *__rte_pktmbuf_read(const struct rte_mbuf *m, uint32_t off, + uint32_t len, void *buf) +{ + const struct rte_mbuf *seg = m; + uint32_t buf_off = 0, copy_len; + + if (off + len > rte_pktmbuf_pkt_len(m)) + return NULL; + + while (off >= rte_pktmbuf_data_len(seg)) { + off -= rte_pktmbuf_data_len(seg); + seg = seg->next; + } + + if (off + len <= rte_pktmbuf_data_len(seg)) + return rte_pktmbuf_mtod_offset(seg, char *, off); + + /* rare case: header is split among several segments */ + while (len > 0) { + copy_len = rte_pktmbuf_data_len(seg) - off; + if (copy_len > len) + copy_len = len; + rte_memcpy((char *)buf + buf_off, + rte_pktmbuf_mtod_offset(seg, char *, off), copy_len); + off = 0; + buf_off += copy_len; + len -= copy_len; + seg = seg->next; + } + + return buf; +} + +/* + * 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_L4_CKSUM_GOOD: return "PKT_RX_L4_CKSUM_GOOD"; + case PKT_RX_L4_CKSUM_NONE: return "PKT_RX_L4_CKSUM_NONE"; + case PKT_RX_IP_CKSUM_BAD: return "PKT_RX_IP_CKSUM_BAD"; + case PKT_RX_IP_CKSUM_GOOD: return "PKT_RX_IP_CKSUM_GOOD"; + case PKT_RX_IP_CKSUM_NONE: return "PKT_RX_IP_CKSUM_NONE"; + case PKT_RX_EIP_CKSUM_BAD: return "PKT_RX_EIP_CKSUM_BAD"; + 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_QINQ_STRIPPED: return "PKT_RX_QINQ_STRIPPED"; + case PKT_RX_LRO: return "PKT_RX_LRO"; + case PKT_RX_TIMESTAMP: return "PKT_RX_TIMESTAMP"; + default: return NULL; + } +} + +struct flag_mask { + uint64_t flag; + uint64_t mask; + const char *default_name; +}; + +/* write the list of rx ol flags in buffer buf */ +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_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 }, + { PKT_RX_L4_CKSUM_GOOD, PKT_RX_L4_CKSUM_MASK, NULL }, + { PKT_RX_L4_CKSUM_NONE, PKT_RX_L4_CKSUM_MASK, NULL }, + { PKT_RX_L4_CKSUM_UNKNOWN, PKT_RX_L4_CKSUM_MASK, + "PKT_RX_L4_CKSUM_UNKNOWN" }, + { PKT_RX_IP_CKSUM_BAD, PKT_RX_IP_CKSUM_MASK, NULL }, + { PKT_RX_IP_CKSUM_GOOD, PKT_RX_IP_CKSUM_MASK, NULL }, + { PKT_RX_IP_CKSUM_NONE, PKT_RX_IP_CKSUM_MASK, NULL }, + { PKT_RX_IP_CKSUM_UNKNOWN, PKT_RX_IP_CKSUM_MASK, + "PKT_RX_IP_CKSUM_UNKNOWN" }, + { PKT_RX_EIP_CKSUM_BAD, PKT_RX_EIP_CKSUM_BAD, NULL }, + { 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_QINQ_STRIPPED, PKT_RX_QINQ_STRIPPED, NULL }, + { PKT_RX_LRO, PKT_RX_LRO, NULL }, + { PKT_RX_TIMESTAMP, PKT_RX_TIMESTAMP, NULL }, + }; + const char *name; + unsigned int i; + int ret; + + if (buflen == 0) + return -1; + + buf[0] = '\0'; + for (i = 0; i < RTE_DIM(rx_flags); i++) { + if ((mask & rx_flags[i].mask) != rx_flags[i].flag) + continue; + name = rte_get_rx_ol_flag_name(rx_flags[i].flag); + if (name == NULL) + name = rx_flags[i].default_name; + ret = snprintf(buf, buflen, "%s ", name); + if (ret < 0) + return -1; + if ((size_t)ret >= buflen) + return -1; + buf += ret; + buflen -= ret; + } + + return 0; +} + +/* + * 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"; + case PKT_TX_TUNNEL_VXLAN: return "PKT_TX_TUNNEL_VXLAN"; + 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_MACSEC: return "PKT_TX_MACSEC"; + default: return NULL; + } +} + +/* write the list of tx ol flags in buffer buf */ +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_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 }, + { PKT_TX_UDP_CKSUM, PKT_TX_L4_MASK, NULL }, + { PKT_TX_L4_NO_CKSUM, PKT_TX_L4_MASK, "PKT_TX_L4_NO_CKSUM" }, + { PKT_TX_IEEE1588_TMST, PKT_TX_IEEE1588_TMST, NULL }, + { PKT_TX_TCP_SEG, PKT_TX_TCP_SEG, NULL }, + { PKT_TX_IPV4, PKT_TX_IPV4, NULL }, + { PKT_TX_IPV6, PKT_TX_IPV6, NULL }, + { 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_MACSEC, PKT_TX_MACSEC, NULL }, + }; + const char *name; + unsigned int i; + int ret; + + if (buflen == 0) + return -1; + + buf[0] = '\0'; + for (i = 0; i < RTE_DIM(tx_flags); i++) { + if ((mask & tx_flags[i].mask) != tx_flags[i].flag) + continue; + name = rte_get_tx_ol_flag_name(tx_flags[i].flag); + if (name == NULL) + name = tx_flags[i].default_name; + ret = snprintf(buf, buflen, "%s ", name); + if (ret < 0) + return -1; + if ((size_t)ret >= buflen) + return -1; + buf += ret; + buflen -= ret; + } + + return 0; +} -- cgit v1.2.3