* 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
#include <rte_memory.h>
#include <rte_memzone.h>
#include <rte_launch.h>
-#include <rte_tailq.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>
+#include <rte_memcpy.h>
/*
* ctrlmbuf constructor, given as a callback function to
- * rte_mempool_create()
+ * rte_mempool_obj_iter() or rte_mempool_create()
*/
void
rte_ctrlmbuf_init(struct rte_mempool *mp,
/*
* pktmbuf pool constructor, given as a callback function to
- * rte_mempool_create()
+ * 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 *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_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_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));
}
/*
* pktmbuf constructor, given as a callback function to
- * rte_mempool_create().
+ * rte_mempool_obj_iter() or rte_mempool_create().
* Set the fields of a packet mbuf to their default values.
*/
void
__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_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 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->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 */
if (m->buf_addr == NULL)
rte_panic("bad virt addr\n");
-#ifdef RTE_MBUF_REFCNT
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 sub-segments */
if (is_header == 0)
__rte_mbuf_sanity_check(m, 1);
- fprintf(f, "dump mbuf at 0x%p, phys=%"PRIx64", buf_len=%u\n",
+ 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,
while (m && nb_segs != 0) {
__rte_mbuf_sanity_check(m, 0);
- fprintf(f, " segment at 0x%p, data=0x%p, data_len=%u\n",
+ 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)
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";
+ 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 },
+ };
+ 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;
+}
git.droids-corp.org / dpdk.git / blobdiff