--- /dev/null
+/*-
+ * 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 <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <ctype.h>
+#include <sys/queue.h>
+
+#include <rte_debug.h>
+#include <rte_common.h>
+#include <rte_log.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_launch.h>
+#include <rte_eal.h>
+#include <rte_per_lcore.h>
+#include <rte_lcore.h>
+#include <rte_atomic.h>
+#include <rte_branch_prediction.h>
+#include <rte_ring.h>
+#include <rte_mempool.h>
+#include <rte_mbuf.h>
+#include <rte_string_fns.h>
+#include <rte_hexdump.h>
+#include <rte_errno.h>
+
+/*
+ * ctrlmbuf constructor, given as a callback function to
+ * 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()
+ */
+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_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;
+ }
+
+ 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 = rte_mempool_get_priv(mp);
+ memcpy(mbp_priv, user_mbp_priv, sizeof(*mbp_priv));
+}
+
+/*
+ * pktmbuf constructor, given as a callback function to
+ * 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_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 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;
+}
+
+/* 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, 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 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=%"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 0x%p, data=0x%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 --;
+ }
+}
+
+/*
+ * 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;
+ }
+}
Code Review / deb_dpdk.git / blobdiff