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5 * Copyright 2014 6WIND S.A.
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43 #include <sys/queue.h>
45 #include <rte_debug.h>
46 #include <rte_common.h>
48 #include <rte_memory.h>
49 #include <rte_memzone.h>
50 #include <rte_launch.h>
52 #include <rte_per_lcore.h>
53 #include <rte_lcore.h>
54 #include <rte_atomic.h>
55 #include <rte_branch_prediction.h>
57 #include <rte_mempool.h>
59 #include <rte_string_fns.h>
60 #include <rte_hexdump.h>
63 * ctrlmbuf constructor, given as a callback function to
64 * rte_mempool_create()
67 rte_ctrlmbuf_init(struct rte_mempool *mp,
68 __attribute__((unused)) void *opaque_arg,
70 __attribute__((unused)) unsigned i)
72 struct rte_mbuf *m = _m;
73 rte_pktmbuf_init(mp, opaque_arg, _m, i);
74 m->ol_flags |= CTRL_MBUF_FLAG;
78 * pktmbuf pool constructor, given as a callback function to
79 * rte_mempool_create()
82 rte_pktmbuf_pool_init(struct rte_mempool *mp, void *opaque_arg)
84 struct rte_pktmbuf_pool_private *mbp_priv;
87 mbp_priv = rte_mempool_get_priv(mp);
88 roomsz = (uint16_t)(uintptr_t)opaque_arg;
90 /* Use default data room size. */
92 roomsz = 2048 + RTE_PKTMBUF_HEADROOM;
94 mbp_priv->mbuf_data_room_size = roomsz;
98 * pktmbuf constructor, given as a callback function to
99 * rte_mempool_create().
100 * Set the fields of a packet mbuf to their default values.
103 rte_pktmbuf_init(struct rte_mempool *mp,
104 __attribute__((unused)) void *opaque_arg,
106 __attribute__((unused)) unsigned i)
108 struct rte_mbuf *m = _m;
109 uint32_t buf_len = mp->elt_size - sizeof(struct rte_mbuf);
111 RTE_MBUF_ASSERT(mp->elt_size >= sizeof(struct rte_mbuf));
113 memset(m, 0, mp->elt_size);
115 /* start of buffer is just after mbuf structure */
116 m->buf_addr = (char *)m + sizeof(struct rte_mbuf);
117 m->buf_physaddr = rte_mempool_virt2phy(mp, m) +
118 sizeof(struct rte_mbuf);
119 m->buf_len = (uint16_t)buf_len;
121 /* keep some headroom between start of buffer and data */
122 m->data_off = RTE_MIN(RTE_PKTMBUF_HEADROOM, (uint16_t)m->buf_len);
124 /* init some constant fields */
130 /* do some sanity checks on a mbuf: panic if it fails */
132 rte_mbuf_sanity_check(const struct rte_mbuf *m, int is_header)
134 const struct rte_mbuf *m_seg;
138 rte_panic("mbuf is NULL\n");
142 rte_panic("bad mbuf pool\n");
143 if (m->buf_physaddr == 0)
144 rte_panic("bad phys addr\n");
145 if (m->buf_addr == NULL)
146 rte_panic("bad virt addr\n");
148 uint16_t cnt = rte_mbuf_refcnt_read(m);
149 if ((cnt == 0) || (cnt == UINT16_MAX))
150 rte_panic("bad ref cnt\n");
152 /* nothing to check for sub-segments */
156 nb_segs = m->nb_segs;
158 while (m_seg && nb_segs != 0) {
163 rte_panic("bad nb_segs\n");
166 /* dump a mbuf on console */
168 rte_pktmbuf_dump(FILE *f, const struct rte_mbuf *m, unsigned dump_len)
173 __rte_mbuf_sanity_check(m, 1);
175 fprintf(f, "dump mbuf at 0x%p, phys=%"PRIx64", buf_len=%u\n",
176 m, (uint64_t)m->buf_physaddr, (unsigned)m->buf_len);
177 fprintf(f, " pkt_len=%"PRIu32", ol_flags=%"PRIx64", nb_segs=%u, "
178 "in_port=%u\n", m->pkt_len, m->ol_flags,
179 (unsigned)m->nb_segs, (unsigned)m->port);
180 nb_segs = m->nb_segs;
182 while (m && nb_segs != 0) {
183 __rte_mbuf_sanity_check(m, 0);
185 fprintf(f, " segment at 0x%p, data=0x%p, data_len=%u\n",
186 m, rte_pktmbuf_mtod(m, void *), (unsigned)m->data_len);
188 if (len > m->data_len)
191 rte_hexdump(f, NULL, rte_pktmbuf_mtod(m, void *), len);
199 * Get the name of a RX offload flag. Must be kept synchronized with flag
200 * definitions in rte_mbuf.h.
202 const char *rte_get_rx_ol_flag_name(uint64_t mask)
205 case PKT_RX_VLAN_PKT: return "PKT_RX_VLAN_PKT";
206 case PKT_RX_RSS_HASH: return "PKT_RX_RSS_HASH";
207 case PKT_RX_FDIR: return "PKT_RX_FDIR";
208 case PKT_RX_L4_CKSUM_BAD: return "PKT_RX_L4_CKSUM_BAD";
209 case PKT_RX_IP_CKSUM_BAD: return "PKT_RX_IP_CKSUM_BAD";
210 /* case PKT_RX_EIP_CKSUM_BAD: return "PKT_RX_EIP_CKSUM_BAD"; */
211 /* case PKT_RX_OVERSIZE: return "PKT_RX_OVERSIZE"; */
212 /* case PKT_RX_HBUF_OVERFLOW: return "PKT_RX_HBUF_OVERFLOW"; */
213 /* case PKT_RX_RECIP_ERR: return "PKT_RX_RECIP_ERR"; */
214 /* case PKT_RX_MAC_ERR: return "PKT_RX_MAC_ERR"; */
215 case PKT_RX_IPV4_HDR: return "PKT_RX_IPV4_HDR";
216 case PKT_RX_IPV4_HDR_EXT: return "PKT_RX_IPV4_HDR_EXT";
217 case PKT_RX_IPV6_HDR: return "PKT_RX_IPV6_HDR";
218 case PKT_RX_IPV6_HDR_EXT: return "PKT_RX_IPV6_HDR_EXT";
219 case PKT_RX_IEEE1588_PTP: return "PKT_RX_IEEE1588_PTP";
220 case PKT_RX_IEEE1588_TMST: return "PKT_RX_IEEE1588_TMST";
221 case PKT_RX_TUNNEL_IPV4_HDR: return "PKT_RX_TUNNEL_IPV4_HDR";
222 case PKT_RX_TUNNEL_IPV6_HDR: return "PKT_RX_TUNNEL_IPV6_HDR";
223 default: return NULL;
228 * Get the name of a TX offload flag. Must be kept synchronized with flag
229 * definitions in rte_mbuf.h.
231 const char *rte_get_tx_ol_flag_name(uint64_t mask)
234 case PKT_TX_VLAN_PKT: return "PKT_TX_VLAN_PKT";
235 case PKT_TX_IP_CKSUM: return "PKT_TX_IP_CKSUM";
236 case PKT_TX_TCP_CKSUM: return "PKT_TX_TCP_CKSUM";
237 case PKT_TX_SCTP_CKSUM: return "PKT_TX_SCTP_CKSUM";
238 case PKT_TX_UDP_CKSUM: return "PKT_TX_UDP_CKSUM";
239 case PKT_TX_IEEE1588_TMST: return "PKT_TX_IEEE1588_TMST";
240 case PKT_TX_TCP_SEG: return "PKT_TX_TCP_SEG";
241 case PKT_TX_IPV4: return "PKT_TX_IPV4";
242 case PKT_TX_IPV6: return "PKT_TX_IPV6";
243 case PKT_TX_OUTER_IP_CKSUM: return "PKT_TX_OUTER_IP_CKSUM";
244 case PKT_TX_OUTER_IPV4: return "PKT_TX_OUTER_IPV4";
245 case PKT_TX_OUTER_IPV6: return "PKT_TX_OUTER_IPV6";
246 default: return NULL;