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- Log ----------------------------------------------------------------- commit 870ef79d2dae0ad94a5079d0ca1e222493937aef Author: Matias Elo matias.elo@nokia.com Date: Fri Jul 22 13:04:57 2016 +0300
performance: odp_scheduling: use multi alloc/free buffer functions
Use odp_buffer_alloc_multi() and odp_buffer_free_multi() functions where appropriate for improved performance.
Signed-off-by: Matias Elo matias.elo@nokia.com Reviewed-and-tested-by: Bill Fischofer bill.fischofer@linaro.org Signed-off-by: Maxim Uvarov maxim.uvarov@linaro.org
diff --git a/test/common_plat/performance/odp_scheduling.c b/test/common_plat/performance/odp_scheduling.c index 5a2997f..1d1bf01 100644 --- a/test/common_plat/performance/odp_scheduling.c +++ b/test/common_plat/performance/odp_scheduling.c @@ -29,7 +29,7 @@ #include <getopt.h>
#define MSG_POOL_SIZE (4 * 1024 * 1024) /**< Message pool size */ -#define MAX_ALLOCS 35 /**< Alloc burst size */ +#define MAX_ALLOCS 32 /**< Alloc burst size */ #define QUEUES_PER_PRIO 64 /**< Queue per priority */ #define NUM_PRIOS 2 /**< Number of tested priorities */ #define QUEUE_ROUNDS (512 * 1024) /**< Queue test rounds */ @@ -131,9 +131,10 @@ static void clear_sched_queues(void) static int enqueue_events(int thr, int prio, int num_queues, int num_events, test_globals_t *globals) { - odp_buffer_t buf; + odp_buffer_t buf[num_events]; + odp_event_t ev[num_events]; odp_queue_t queue; - int i, j, k; + int i, j, k, ret;
if (prio == ODP_SCHED_PRIO_HIGHEST) i = 0; @@ -144,19 +145,28 @@ static int enqueue_events(int thr, int prio, int num_queues, int num_events, for (j = 0; j < num_queues; j++) { queue = globals->queue[i][j];
+ ret = odp_buffer_alloc_multi(globals->pool, buf, num_events); + if (ret != num_events) { + LOG_ERR(" [%i] buffer alloc failed\n", thr); + ret = ret < 0 ? 0 : ret; + odp_buffer_free_multi(buf, ret); + return -1; + } for (k = 0; k < num_events; k++) { - buf = odp_buffer_alloc(globals->pool); - - if (!odp_buffer_is_valid(buf)) { + if (!odp_buffer_is_valid(buf[k])) { LOG_ERR(" [%i] buffer alloc failed\n", thr); + odp_buffer_free_multi(buf, num_events); return -1; } + ev[k] = odp_buffer_to_event(buf[k]); + }
- if (odp_queue_enq(queue, odp_buffer_to_event(buf))) { - LOG_ERR(" [%i] Queue enqueue failed.\n", thr); - odp_buffer_free(buf); - return -1; - } + ret = odp_queue_enq_multi(queue, ev, num_events); + if (ret != num_events) { + LOG_ERR(" [%i] Queue enqueue failed.\n", thr); + ret = ret < 0 ? 0 : ret; + odp_buffer_free_multi(&buf[ret], num_events - ret); + return -1; } }
@@ -210,24 +220,30 @@ static int test_alloc_single(int thr, test_globals_t *globals) */ static int test_alloc_multi(int thr, test_globals_t *globals) { - int i, j; + int i, j, ret; odp_buffer_t temp_buf[MAX_ALLOCS]; uint64_t c1, c2, cycles;
c1 = odp_cpu_cycles();
for (i = 0; i < ALLOC_ROUNDS; i++) { - for (j = 0; j < MAX_ALLOCS; j++) { - temp_buf[j] = odp_buffer_alloc(globals->pool); + ret = odp_buffer_alloc_multi(globals->pool, temp_buf, + MAX_ALLOCS); + if (ret != MAX_ALLOCS) { + LOG_ERR(" [%i] buffer alloc failed\n", thr); + ret = ret < 0 ? 0 : ret; + odp_buffer_free_multi(temp_buf, ret); + return -1; + }
+ for (j = 0; j < MAX_ALLOCS; j++) { if (!odp_buffer_is_valid(temp_buf[j])) { LOG_ERR(" [%i] alloc_multi failed\n", thr); + odp_buffer_free_multi(temp_buf, MAX_ALLOCS); return -1; } } - - for (; j > 0; j--) - odp_buffer_free(temp_buf[j - 1]); + odp_buffer_free_multi(temp_buf, MAX_ALLOCS); }
c2 = odp_cpu_cycles();
commit 4329099f32dc7e097eac6ec263264bc0f31d042c Author: Matias Elo matias.elo@nokia.com Date: Fri Jul 22 13:04:56 2016 +0300
linux-gen: netmap: use multi alloc/free
Modify netmap pktio to take advantage of multi-alloc/free.
Signed-off-by: Matias Elo matias.elo@nokia.com Reviewed-and-tested-by: Bill Fischofer bill.fischofer@linaro.org Signed-off-by: Maxim Uvarov maxim.uvarov@linaro.org
diff --git a/platform/linux-generic/include/odp_packet_netmap.h b/platform/linux-generic/include/odp_packet_netmap.h index 0e6c0dc..2aadbed 100644 --- a/platform/linux-generic/include/odp_packet_netmap.h +++ b/platform/linux-generic/include/odp_packet_netmap.h @@ -35,6 +35,12 @@ typedef union { uint8_t pad[ODP_CACHE_LINE_SIZE_ROUNDUP(sizeof(struct netmap_ring_t))]; } netmap_ring_t ODP_ALIGNED_CACHE;
+/** Netmap ring slot */ +typedef struct { + char *buf; /**< Slot buffer pointer */ + uint16_t len; /**< Slot length */ +} netmap_slot_t; + /** Packet socket using netmap mmaped rings for both Rx and Tx */ typedef struct { odp_pool_t pool; /**< pool to alloc packets from */ diff --git a/platform/linux-generic/pktio/netmap.c b/platform/linux-generic/pktio/netmap.c index 6498429..412beec 100644 --- a/platform/linux-generic/pktio/netmap.c +++ b/platform/linux-generic/pktio/netmap.c @@ -580,67 +580,85 @@ static int netmap_stop(pktio_entry_t *pktio_entry ODP_UNUSED) }
/** - * Create ODP packet from netmap packet + * Create ODP packets from netmap packets * * @param pktio_entry Packet IO entry - * @param pkt_out Storage for new ODP packet handle - * @param buf Netmap buffer address - * @param len Netmap buffer length + * @param pkt_tbl Array for new ODP packet handles + * @param slot_tbl Array of netmap ring slots + * @param slot_num Number of netmap ring slots * @param ts Pointer to pktin timestamp * * @retval Number of created packets - * @retval <0 on failure */ static inline int netmap_pkt_to_odp(pktio_entry_t *pktio_entry, - odp_packet_t *pkt_out, const char *buf, - uint16_t len, odp_time_t *ts) + odp_packet_t pkt_tbl[], + netmap_slot_t slot_tbl[], int16_t slot_num, + odp_time_t *ts) { odp_packet_t pkt; odp_pool_t pool = pktio_entry->s.pkt_nm.pool; odp_packet_hdr_t *pkt_hdr; odp_packet_hdr_t parsed_hdr; + int i; int num; + int alloc_len;
- if (odp_unlikely(len > pktio_entry->s.pkt_nm.max_frame_len)) { - ODP_ERR("RX: frame too big %" PRIu16 " %zu!\n", len, - pktio_entry->s.pkt_nm.max_frame_len); - return -1; - } + /* Allocate maximum sized packets */ + alloc_len = pktio_entry->s.pkt_nm.mtu;
- if (odp_unlikely(len < _ODP_ETH_LEN_MIN)) { - ODP_ERR("RX: Frame truncated: %" PRIu16 "\n", len); - return -1; - } + num = packet_alloc_multi(pool, alloc_len, pkt_tbl, slot_num);
- if (pktio_cls_enabled(pktio_entry)) { - if (cls_classify_packet(pktio_entry, (const uint8_t *)buf, len, - len, &pool, &parsed_hdr)) - return -1; - } - num = packet_alloc_multi(pool, len, &pkt, 1); - if (num != 1) - return -1; + for (i = 0; i < num; i++) { + netmap_slot_t slot; + uint16_t len;
- pkt_hdr = odp_packet_hdr(pkt); + slot = slot_tbl[i]; + len = slot.len;
- /* For now copy the data in the mbuf, - worry about zero-copy later */ - if (odp_packet_copy_from_mem(pkt, 0, len, buf) != 0) { - odp_packet_free(pkt); - return -1; - } - pkt_hdr->input = pktio_entry->s.handle; + odp_prefetch(slot.buf);
- if (pktio_cls_enabled(pktio_entry)) - copy_packet_cls_metadata(&parsed_hdr, pkt_hdr); - else - packet_parse_l2(&pkt_hdr->p, len); + if (odp_unlikely(len > pktio_entry->s.pkt_nm.max_frame_len)) { + ODP_ERR("RX: frame too big %" PRIu16 " %zu!\n", len, + pktio_entry->s.pkt_nm.max_frame_len); + goto fail; + } + + if (odp_unlikely(len < _ODP_ETH_LEN_MIN)) { + ODP_ERR("RX: Frame truncated: %" PRIu16 "\n", len); + goto fail; + } + + if (pktio_cls_enabled(pktio_entry)) { + if (cls_classify_packet(pktio_entry, + (const uint8_t *)slot.buf, len, + len, &pool, &parsed_hdr)) + goto fail; + } + + pkt = pkt_tbl[i]; + pkt_hdr = odp_packet_hdr(pkt); + pull_tail(pkt_hdr, alloc_len - len);
- packet_set_ts(pkt_hdr, ts); + /* For now copy the data in the mbuf, + worry about zero-copy later */ + if (odp_packet_copy_from_mem(pkt, 0, len, slot.buf) != 0) + goto fail;
- *pkt_out = pkt; + pkt_hdr->input = pktio_entry->s.handle;
- return 1; + if (pktio_cls_enabled(pktio_entry)) + copy_packet_cls_metadata(&parsed_hdr, pkt_hdr); + else + packet_parse_l2(&pkt_hdr->p, len); + + packet_set_ts(pkt_hdr, ts); + } + + return i; + +fail: + odp_packet_free_multi(&pkt_tbl[i], num - i); + return i; }
static inline int netmap_recv_desc(pktio_entry_t *pktio_entry, @@ -650,10 +668,10 @@ static inline int netmap_recv_desc(pktio_entry_t *pktio_entry, struct netmap_ring *ring; odp_time_t ts_val; odp_time_t *ts = NULL; + netmap_slot_t slot_tbl[num]; char *buf; uint32_t slot_id; int i; - int ret; int ring_id = desc->cur_rx_ring; int num_rx = 0; int num_rings = desc->last_rx_ring - desc->first_rx_ring + 1; @@ -668,29 +686,28 @@ static inline int netmap_recv_desc(pktio_entry_t *pktio_entry,
ring = NETMAP_RXRING(desc->nifp, ring_id);
- /* Take timestamp beforehand per ring to improve performance */ - if (ts != NULL) - ts_val = odp_time_global(); - while (!nm_ring_empty(ring) && num_rx != num) { slot_id = ring->cur; buf = NETMAP_BUF(ring, ring->slot[slot_id].buf_idx);
- odp_prefetch(buf); - - ret = netmap_pkt_to_odp(pktio_entry, &pkt_table[num_rx], - buf, ring->slot[slot_id].len, - ts); - if (ret > 0) - num_rx += ret; + slot_tbl[num_rx].buf = buf; + slot_tbl[num_rx].len = ring->slot[slot_id].len; + num_rx++;
ring->cur = nm_ring_next(ring, slot_id); - ring->head = ring->cur; } + ring->head = ring->cur; ring_id++; } desc->cur_rx_ring = ring_id; - return num_rx; + + if (num_rx) { + if (ts != NULL) + ts_val = odp_time_global(); + return netmap_pkt_to_odp(pktio_entry, pkt_table, slot_tbl, + num_rx, ts); + } + return 0; }
static int netmap_recv(pktio_entry_t *pktio_entry, int index, @@ -806,7 +823,6 @@ static int netmap_send(pktio_entry_t *pktio_entry, int index, } if (i == NM_INJECT_RETRIES) break; - odp_packet_free(pkt); } /* Send pending packets */ poll(&polld, 1, 0); @@ -814,6 +830,8 @@ static int netmap_send(pktio_entry_t *pktio_entry, int index, if (!pkt_nm->lockless_tx) odp_ticketlock_unlock(&pkt_nm->tx_desc_ring[index].s.lock);
+ odp_packet_free_multi(pkt_table, nb_tx); + if (odp_unlikely(nb_tx == 0 && __odp_errno != 0)) return -1;
commit b5354ade4337447d2914e5ffa4bdeb36dd689113 Author: Matias Elo matias.elo@nokia.com Date: Fri Jul 22 13:04:55 2016 +0300
linux-gen: pktio: use multi alloc
Modify dpdk pktio to take advantage of multi-alloc/free. Others pktios do alloc/free still one packet at a time. For example, l2fwd test application packet throughput is increased about 10% (with dpdk pktio).
Signed-off-by: Petri Savolainen petri.savolainen@nokia.com Signed-off-by: Matias Elo matias.elo@nokia.com Reviewed-and-tested-by: Bill Fischofer bill.fischofer@linaro.org Signed-off-by: Maxim Uvarov maxim.uvarov@linaro.org
diff --git a/platform/linux-generic/include/odp_packet_internal.h b/platform/linux-generic/include/odp_packet_internal.h index 4c4e36c..392d670 100644 --- a/platform/linux-generic/include/odp_packet_internal.h +++ b/platform/linux-generic/include/odp_packet_internal.h @@ -306,7 +306,9 @@ static inline int packet_parse_not_complete(odp_packet_hdr_t *pkt_hdr) /* Forward declarations */ int _odp_packet_copy_md_to_packet(odp_packet_t srcpkt, odp_packet_t dstpkt);
-odp_packet_t packet_alloc(odp_pool_t pool_hdl, uint32_t len, int parse); +/* Packet alloc of pktios */ +int packet_alloc_multi(odp_pool_t pool_hdl, uint32_t len, + odp_packet_t pkt[], int max_num);
/* Fill in parser metadata for L2 */ void packet_parse_l2(packet_parser_t *prs, uint32_t frame_len); diff --git a/platform/linux-generic/include/odp_packet_socket.h b/platform/linux-generic/include/odp_packet_socket.h index ccff69a..dbfc9f1 100644 --- a/platform/linux-generic/include/odp_packet_socket.h +++ b/platform/linux-generic/include/odp_packet_socket.h @@ -45,6 +45,7 @@ typedef struct { int sockfd; /**< socket descriptor */ odp_pool_t pool; /**< pool to alloc packets from */ + uint32_t mtu; /**< maximum transmission unit */ unsigned char if_mac[ETH_ALEN]; /**< IF eth mac addr */ uint8_t *cache_ptr[ODP_PACKET_SOCKET_MAX_BURST_RX]; odp_shm_t shm; diff --git a/platform/linux-generic/odp_packet.c b/platform/linux-generic/odp_packet.c index 474fa81..c4cf324 100644 --- a/platform/linux-generic/odp_packet.c +++ b/platform/linux-generic/odp_packet.c @@ -76,35 +76,46 @@ static void packet_init(pool_entry_t *pool, odp_packet_hdr_t *pkt_hdr, pkt_hdr->input = ODP_PKTIO_INVALID; }
-odp_packet_t packet_alloc(odp_pool_t pool_hdl, uint32_t len, int parse) +int packet_alloc_multi(odp_pool_t pool_hdl, uint32_t len, + odp_packet_t pkt[], int max_num) { - odp_packet_t pkt; odp_packet_hdr_t *pkt_hdr; pool_entry_t *pool = odp_pool_to_entry(pool_hdl); + int num, i;
- if (pool->s.params.type != ODP_POOL_PACKET) - return ODP_PACKET_INVALID; - - /* Handle special case for zero-length packets */ - if (len == 0) { - len = pool->s.params.buf.size; + num = buffer_alloc_multi(pool_hdl, len, (odp_buffer_t *)pkt, max_num);
- pkt = (odp_packet_t)buffer_alloc(pool_hdl, len); + for (i = 0; i < num; i++) { + pkt_hdr = odp_packet_hdr(pkt[i]); + packet_init(pool, pkt_hdr, len, 1 /* do parse */);
- if (pkt == ODP_PACKET_INVALID) - return ODP_PACKET_INVALID; + if (pkt_hdr->tailroom >= pkt_hdr->buf_hdr.segsize) + pull_tail_seg(pkt_hdr); + }
- pull_tail(odp_packet_hdr(pkt), len); + return num; +}
- } else { - pkt = (odp_packet_t)buffer_alloc(pool_hdl, len); +odp_packet_t odp_packet_alloc(odp_pool_t pool_hdl, uint32_t len) +{ + pool_entry_t *pool = odp_pool_to_entry(pool_hdl); + size_t pkt_size = len ? len : pool->s.params.buf.size; + odp_packet_t pkt; + odp_packet_hdr_t *pkt_hdr;
- if (pkt == ODP_PACKET_INVALID) - return ODP_PACKET_INVALID; + if (pool->s.params.type != ODP_POOL_PACKET) { + __odp_errno = EINVAL; + return ODP_PACKET_INVALID; }
+ pkt = (odp_packet_t)buffer_alloc(pool_hdl, pkt_size); + if (pkt == ODP_PACKET_INVALID) + return ODP_PACKET_INVALID; + pkt_hdr = odp_packet_hdr(pkt); - packet_init(pool, pkt_hdr, len, parse); + packet_init(pool, pkt_hdr, pkt_size, 0 /* do not parse */); + if (len == 0) + pull_tail(pkt_hdr, pkt_size);
if (pkt_hdr->tailroom >= pkt_hdr->buf_hdr.segsize) pull_tail_seg(pkt_hdr); @@ -112,11 +123,6 @@ odp_packet_t packet_alloc(odp_pool_t pool_hdl, uint32_t len, int parse) return pkt; }
-odp_packet_t odp_packet_alloc(odp_pool_t pool_hdl, uint32_t len) -{ - return packet_alloc(pool_hdl, len, 0); -} - int odp_packet_alloc_multi(odp_pool_t pool_hdl, uint32_t len, odp_packet_t pkt[], int num) { @@ -135,9 +141,12 @@ int odp_packet_alloc_multi(odp_pool_t pool_hdl, uint32_t len, for (i = 0; i < count; ++i) { odp_packet_hdr_t *pkt_hdr = odp_packet_hdr(pkt[i]);
- packet_init(pool, pkt_hdr, pkt_size, 0); + packet_init(pool, pkt_hdr, pkt_size, 0 /* do not parse */); if (len == 0) pull_tail(pkt_hdr, pkt_size); + + if (pkt_hdr->tailroom >= pkt_hdr->buf_hdr.segsize) + pull_tail_seg(pkt_hdr); }
return count; @@ -145,12 +154,16 @@ int odp_packet_alloc_multi(odp_pool_t pool_hdl, uint32_t len,
void odp_packet_free(odp_packet_t pkt) { - odp_buffer_free((odp_buffer_t)pkt); + uint32_t pool_id = pool_id_from_buf((odp_buffer_t)pkt); + + buffer_free(pool_id, (odp_buffer_t)pkt); }
void odp_packet_free_multi(const odp_packet_t pkt[], int num) { - odp_buffer_free_multi((const odp_buffer_t *)pkt, num); + uint32_t pool_id = pool_id_from_buf((odp_buffer_t)pkt[0]); + + buffer_free_multi(pool_id, (const odp_buffer_t * const)pkt, num); }
int odp_packet_reset(odp_packet_t pkt, uint32_t len) diff --git a/platform/linux-generic/pktio/dpdk.c b/platform/linux-generic/pktio/dpdk.c index a5934a5..1fad8a9 100644 --- a/platform/linux-generic/pktio/dpdk.c +++ b/platform/linux-generic/pktio/dpdk.c @@ -706,7 +706,7 @@ static int dpdk_stop(pktio_entry_t *pktio_entry) static inline int mbuf_to_pkt(pktio_entry_t *pktio_entry, odp_packet_t pkt_table[], struct rte_mbuf *mbuf_table[], - uint16_t num, odp_time_t *ts) + uint16_t mbuf_num, odp_time_t *ts) { odp_packet_t pkt; odp_packet_hdr_t *pkt_hdr; @@ -715,9 +715,15 @@ static inline int mbuf_to_pkt(pktio_entry_t *pktio_entry, void *buf; int i, j; int nb_pkts = 0; + int alloc_len, num; + odp_pool_t pool = pktio_entry->s.pkt_dpdk.pool; + + /* Allocate maximum sized packets */ + alloc_len = pktio_entry->s.pkt_dpdk.data_room; + + num = packet_alloc_multi(pool, alloc_len, pkt_table, mbuf_num);
for (i = 0; i < num; i++) { - odp_pool_t pool = pktio_entry->s.pkt_dpdk.pool; odp_packet_hdr_t parsed_hdr;
mbuf = mbuf_table[i]; @@ -738,18 +744,16 @@ static inline int mbuf_to_pkt(pktio_entry_t *pktio_entry, &parsed_hdr)) goto fail; } - pkt = packet_alloc(pool, pkt_len, 1); - if (pkt == ODP_PACKET_INVALID) - goto fail;
+ pkt = pkt_table[i]; pkt_hdr = odp_packet_hdr(pkt); + pull_tail(pkt_hdr, alloc_len - pkt_len);
/* For now copy the data in the mbuf, worry about zero-copy later */ - if (odp_packet_copy_from_mem(pkt, 0, pkt_len, buf) != 0) { - odp_packet_free(pkt); + if (odp_packet_copy_from_mem(pkt, 0, pkt_len, buf) != 0) goto fail; - } + pkt_hdr->input = pktio_entry->s.handle;
if (pktio_cls_enabled(pktio_entry)) @@ -770,7 +774,9 @@ static inline int mbuf_to_pkt(pktio_entry_t *pktio_entry, return nb_pkts;
fail: - for (j = i; j < num; j++) + odp_packet_free_multi(&pkt_table[i], mbuf_num - i); + + for (j = i; j < mbuf_num; j++) rte_pktmbuf_free(mbuf_table[j]);
return (i > 0 ? i : -1); diff --git a/platform/linux-generic/pktio/netmap.c b/platform/linux-generic/pktio/netmap.c index 3017e40..6498429 100644 --- a/platform/linux-generic/pktio/netmap.c +++ b/platform/linux-generic/pktio/netmap.c @@ -599,6 +599,7 @@ static inline int netmap_pkt_to_odp(pktio_entry_t *pktio_entry, odp_pool_t pool = pktio_entry->s.pkt_nm.pool; odp_packet_hdr_t *pkt_hdr; odp_packet_hdr_t parsed_hdr; + int num;
if (odp_unlikely(len > pktio_entry->s.pkt_nm.max_frame_len)) { ODP_ERR("RX: frame too big %" PRIu16 " %zu!\n", len, @@ -616,8 +617,8 @@ static inline int netmap_pkt_to_odp(pktio_entry_t *pktio_entry, len, &pool, &parsed_hdr)) return -1; } - pkt = packet_alloc(pool, len, 1); - if (pkt == ODP_PACKET_INVALID) + num = packet_alloc_multi(pool, len, &pkt, 1); + if (num != 1) return -1;
pkt_hdr = odp_packet_hdr(pkt); diff --git a/platform/linux-generic/pktio/pcap.c b/platform/linux-generic/pktio/pcap.c index e501858..e54a56f 100644 --- a/platform/linux-generic/pktio/pcap.c +++ b/platform/linux-generic/pktio/pcap.c @@ -224,19 +224,9 @@ static int pcapif_recv_pkt(pktio_entry_t *pktio_entry, int index ODP_UNUSED, pktio_entry->s.config.pktin.bit.ts_ptp) ts = &ts_val;
- pkt = ODP_PACKET_INVALID; - pkt_len = 0; - for (i = 0; i < len; ) { int ret;
- if (pkt == ODP_PACKET_INVALID) { - pkt = packet_alloc(pcap->pool, 0 /*default len*/, 1); - if (odp_unlikely(pkt == ODP_PACKET_INVALID)) - break; - pkt_len = odp_packet_len(pkt); - } - ret = pcap_next_ex(pcap->rx, &hdr, &data);
/* end of file, attempt to reopen if within loop limit */ @@ -246,17 +236,17 @@ static int pcapif_recv_pkt(pktio_entry_t *pktio_entry, int index ODP_UNUSED, if (ret != 1) break;
+ pkt_len = hdr->caplen; + + ret = packet_alloc_multi(pcap->pool, pkt_len, &pkt, 1); + if (odp_unlikely(ret != 1)) + break; + if (ts != NULL) ts_val = odp_time_global();
pkt_hdr = odp_packet_hdr(pkt);
- if (!odp_packet_pull_tail(pkt, pkt_len - hdr->caplen)) { - ODP_ERR("failed to pull tail: pkt_len: %d caplen: %d\n", - pkt_len, hdr->caplen); - break; - } - if (odp_packet_copy_from_mem(pkt, 0, hdr->caplen, data) != 0) { ODP_ERR("failed to copy packet data\n"); break; @@ -269,7 +259,6 @@ static int pcapif_recv_pkt(pktio_entry_t *pktio_entry, int index ODP_UNUSED, pkt_hdr->input = pktio_entry->s.handle;
pkts[i] = pkt; - pkt = ODP_PACKET_INVALID;
i++; } @@ -277,9 +266,6 @@ static int pcapif_recv_pkt(pktio_entry_t *pktio_entry, int index ODP_UNUSED,
odp_ticketlock_unlock(&pktio_entry->s.rxl);
- if (pkt != ODP_PACKET_INVALID) - odp_packet_free(pkt); - return i; }
diff --git a/platform/linux-generic/pktio/socket.c b/platform/linux-generic/pktio/socket.c index 0309b0d..e01b0a5 100644 --- a/platform/linux-generic/pktio/socket.c +++ b/platform/linux-generic/pktio/socket.c @@ -527,6 +527,10 @@ static int sock_setup_pkt(pktio_entry_t *pktio_entry, const char *netdev, if (err != 0) goto error;
+ pkt_sock->mtu = mtu_get_fd(sockfd, netdev); + if (!pkt_sock->mtu) + goto error; + /* bind socket to if */ memset(&sa_ll, 0, sizeof(sa_ll)); sa_ll.sll_family = AF_PACKET; @@ -659,6 +663,7 @@ static int sock_mmsg_recv(pktio_entry_t *pktio_entry, int index ODP_UNUSED, void *base = msgvec[i].msg_hdr.msg_iov->iov_base; struct ethhdr *eth_hdr = base; uint16_t pkt_len = msgvec[i].msg_len; + int num;
/* Don't receive packets sent by ourselves */ if (odp_unlikely(ethaddrs_equal(pkt_sock->if_mac, @@ -668,8 +673,8 @@ static int sock_mmsg_recv(pktio_entry_t *pktio_entry, int index ODP_UNUSED, if (cls_classify_packet(pktio_entry, base, pkt_len, pkt_len, &pool, &parsed_hdr)) continue; - pkt = packet_alloc(pool, pkt_len, 1); - if (pkt == ODP_PACKET_INVALID) + num = packet_alloc_multi(pool, pkt_len, &pkt, 1); + if (num != 1) continue;
pkt_hdr = odp_packet_hdr(pkt); @@ -690,10 +695,14 @@ static int sock_mmsg_recv(pktio_entry_t *pktio_entry, int index ODP_UNUSED, [ODP_BUFFER_MAX_SEG];
for (i = 0; i < (int)len; i++) { - pkt_table[i] = packet_alloc(pkt_sock->pool, - 0 /*default*/, 1); - if (odp_unlikely(pkt_table[i] == ODP_PACKET_INVALID)) + int num; + + num = packet_alloc_multi(pkt_sock->pool, pkt_sock->mtu, + &pkt_table[i], 1); + if (odp_unlikely(num != 1)) { + pkt_table[i] = ODP_PACKET_INVALID; break; + }
msgvec[i].msg_hdr.msg_iovlen = _rx_pkt_to_iovec(pkt_table[i], iovecs[i]); @@ -818,7 +827,7 @@ static int sock_mmsg_send(pktio_entry_t *pktio_entry, int index ODP_UNUSED, */ static uint32_t sock_mtu_get(pktio_entry_t *pktio_entry) { - return mtu_get_fd(pktio_entry->s.pkt_sock.sockfd, pktio_entry->s.name); + return pktio_entry->s.pkt_sock.mtu; }
/* diff --git a/platform/linux-generic/pktio/socket_mmap.c b/platform/linux-generic/pktio/socket_mmap.c index b6be81a..8b24c99 100644 --- a/platform/linux-generic/pktio/socket_mmap.c +++ b/platform/linux-generic/pktio/socket_mmap.c @@ -171,6 +171,7 @@ static inline unsigned pkt_mmap_v2_rx(pktio_entry_t *pktio_entry, odp_packet_hdr_t *hdr; odp_packet_hdr_t parsed_hdr; odp_pool_t pool = pkt_sock->pool; + int num;
if (!mmap_rx_kernel_ready(ring->rd[frame_num].iov_base)) break; @@ -208,8 +209,10 @@ static inline unsigned pkt_mmap_v2_rx(pktio_entry_t *pktio_entry, } }
- pkt_table[nb_rx] = packet_alloc(pool, pkt_len, 1); - if (odp_unlikely(pkt_table[nb_rx] == ODP_PACKET_INVALID)) { + num = packet_alloc_multi(pool, pkt_len, &pkt_table[nb_rx], 1); + + if (odp_unlikely(num != 1)) { + pkt_table[nb_rx] = ODP_PACKET_INVALID; mmap_rx_user_ready(ppd.raw); /* drop */ frame_num = next_frame_num; continue; diff --git a/platform/linux-generic/pktio/tap.c b/platform/linux-generic/pktio/tap.c index a9a8886..d758a39 100644 --- a/platform/linux-generic/pktio/tap.c +++ b/platform/linux-generic/pktio/tap.c @@ -185,11 +185,12 @@ static odp_packet_t pack_odp_pkt(pktio_entry_t *pktio_entry, const void *data, { odp_packet_t pkt; odp_packet_hdr_t *pkt_hdr; + int num;
- pkt = packet_alloc(pktio_entry->s.pkt_tap.pool, len, 1); + num = packet_alloc_multi(pktio_entry->s.pkt_tap.pool, len, &pkt, 1);
- if (pkt == ODP_PACKET_INVALID) - return pkt; + if (num != 1) + return ODP_PACKET_INVALID;
if (odp_packet_copy_from_mem(pkt, 0, len, data) < 0) { ODP_ERR("failed to copy packet data\n");
commit ec0d570b8f762ea79960d54cf8c4f36efdea2528 Author: Matias Elo matias.elo@nokia.com Date: Fri Jul 22 13:04:54 2016 +0300
linux-gen: pool: optimize thread local buffer cache
Optimize local buffer cache performance which is critical to many use cases - including packet IO.
Main parts of the optimization are: * Local cache implemented as an array of buf_hdr pointers, instead of a linked list (which causes a lot of cache misses) * Alloc and free N buffers per operation
All above steps are needed to demonstrate the performance upgrade. Some related pool functions (get_buf(), ret_buf(), etc) were moved from pool header to c source file, since those were actual local to the c source file. Also some unused pool variables are removed also.
Signed-off-by: Petri Savolainen petri.savolainen@nokia.com Signed-off-by: Matias Elo matias.elo@nokia.com Reviewed-and-tested-by: Bill Fischofer bill.fischofer@linaro.org Signed-off-by: Maxim Uvarov maxim.uvarov@linaro.org
diff --git a/platform/linux-generic/include/odp_buffer_inlines.h b/platform/linux-generic/include/odp_buffer_inlines.h index 3f4d9fd..2b1ab42 100644 --- a/platform/linux-generic/include/odp_buffer_inlines.h +++ b/platform/linux-generic/include/odp_buffer_inlines.h @@ -56,30 +56,12 @@ static inline odp_buffer_hdr_t *odp_buf_to_hdr(odp_buffer_t buf) (pool->pool_mdata_addr + (index * ODP_CACHE_LINE_SIZE)); }
-static inline uint32_t odp_buffer_refcount(odp_buffer_hdr_t *buf) +static inline uint32_t pool_id_from_buf(odp_buffer_t buf) { - return odp_atomic_load_u32(&buf->ref_count); -} - -static inline uint32_t odp_buffer_incr_refcount(odp_buffer_hdr_t *buf, - uint32_t val) -{ - return odp_atomic_fetch_add_u32(&buf->ref_count, val) + val; -} - -static inline uint32_t odp_buffer_decr_refcount(odp_buffer_hdr_t *buf, - uint32_t val) -{ - uint32_t tmp; - - tmp = odp_atomic_fetch_sub_u32(&buf->ref_count, val); + odp_buffer_bits_t handle;
- if (tmp < val) { - odp_atomic_fetch_add_u32(&buf->ref_count, val - tmp); - return 0; - } else { - return tmp - val; - } + handle.handle = buf; + return handle.pool_id; }
static inline odp_buffer_hdr_t *validate_buf(odp_buffer_t buf) diff --git a/platform/linux-generic/include/odp_buffer_internal.h b/platform/linux-generic/include/odp_buffer_internal.h index f21364c..7b0ef8b 100644 --- a/platform/linux-generic/include/odp_buffer_internal.h +++ b/platform/linux-generic/include/odp_buffer_internal.h @@ -114,7 +114,6 @@ struct odp_buffer_hdr_t { union { uint32_t all; struct { - uint32_t zeroized:1; /* Zeroize buf data on free */ uint32_t hdrdata:1; /* Data is in buffer hdr */ uint32_t sustain:1; /* Sustain order */ }; @@ -123,7 +122,6 @@ struct odp_buffer_hdr_t { int8_t type; /* buffer type */ odp_event_type_t event_type; /* for reuse as event */ uint32_t size; /* max data size */ - odp_atomic_u32_t ref_count; /* reference count */ odp_pool_t pool_hdl; /* buffer pool handle */ union { uint64_t buf_u64; /* user u64 */ @@ -174,6 +172,9 @@ typedef struct { odp_buffer_t buffer_alloc(odp_pool_t pool, size_t size); int buffer_alloc_multi(odp_pool_t pool_hdl, size_t size, odp_buffer_t buf[], int num); +void buffer_free(uint32_t pool_id, const odp_buffer_t buf); +void buffer_free_multi(uint32_t pool_id, + const odp_buffer_t buf[], int num_free); int seg_alloc_head(odp_buffer_hdr_t *buf_hdr, int segcount); void seg_free_head(odp_buffer_hdr_t *buf_hdr, int segcount); int seg_alloc_tail(odp_buffer_hdr_t *buf_hdr, int segcount); diff --git a/platform/linux-generic/include/odp_internal.h b/platform/linux-generic/include/odp_internal.h index d12f850..8bad450 100644 --- a/platform/linux-generic/include/odp_internal.h +++ b/platform/linux-generic/include/odp_internal.h @@ -119,8 +119,6 @@ int odp_tm_term_global(void); int _odp_int_name_tbl_init_global(void); int _odp_int_name_tbl_term_global(void);
-void _odp_flush_caches(void); - int cpuinfo_parser(FILE *file, system_info_t *sysinfo); uint64_t odp_cpu_hz_current(int id);
diff --git a/platform/linux-generic/include/odp_pool_internal.h b/platform/linux-generic/include/odp_pool_internal.h index 3317bd0..d6717ff 100644 --- a/platform/linux-generic/include/odp_pool_internal.h +++ b/platform/linux-generic/include/odp_pool_internal.h @@ -51,15 +51,25 @@ typedef struct _odp_buffer_pool_init_t { void *buf_init_arg; /**< Argument to be passed to buf_init() */ } _odp_buffer_pool_init_t; /**< Type of buffer initialization struct */
+#define POOL_MAX_LOCAL_CHUNKS 4 +#define POOL_CHUNK_SIZE 32 +#define POOL_MAX_LOCAL_BUFS (POOL_MAX_LOCAL_CHUNKS * POOL_CHUNK_SIZE) + +struct local_cache_s { + uint64_t bufallocs; /* Local buffer alloc count */ + uint64_t buffrees; /* Local buffer free count */ + + uint32_t num_buf; + odp_buffer_hdr_t *buf[POOL_MAX_LOCAL_BUFS]; +}; + /* Local cache for buffer alloc/free acceleration */ typedef struct local_cache_t { union { - struct { - odp_buffer_hdr_t *buf_freelist; /* The local cache */ - uint64_t bufallocs; /* Local buffer alloc count */ - uint64_t buffrees; /* Local buffer free count */ - }; - uint8_t pad[ODP_CACHE_LINE_SIZE_ROUNDUP(sizeof(uint64_t))]; + struct local_cache_s s; + + uint8_t pad[ODP_CACHE_LINE_SIZE_ROUNDUP( + sizeof(struct local_cache_s))]; }; } local_cache_t;
@@ -214,127 +224,6 @@ static inline void ret_blk(struct pool_entry_s *pool, void *block) odp_atomic_inc_u64(&pool->poolstats.blkfrees); }
-static inline odp_buffer_hdr_t *get_buf(struct pool_entry_s *pool) -{ - odp_buffer_hdr_t *myhead; - POOL_LOCK(&pool->buf_lock); - - myhead = pool->buf_freelist; - - if (odp_unlikely(myhead == NULL)) { - POOL_UNLOCK(&pool->buf_lock); - odp_atomic_inc_u64(&pool->poolstats.bufempty); - } else { - pool->buf_freelist = myhead->next; - POOL_UNLOCK(&pool->buf_lock); - uint64_t bufcount = - odp_atomic_fetch_sub_u32(&pool->bufcount, 1) - 1; - - /* Check for low watermark condition */ - if (bufcount == pool->buf_low_wm && !pool->buf_low_wm_assert) { - pool->buf_low_wm_assert = 1; - odp_atomic_inc_u64(&pool->poolstats.buf_low_wm_count); - } - - odp_atomic_inc_u64(&pool->poolstats.bufallocs); - } - - return (void *)myhead; -} - -static inline void ret_buf(struct pool_entry_s *pool, odp_buffer_hdr_t *buf) -{ - if (!buf->flags.hdrdata && buf->type != ODP_EVENT_BUFFER) { - while (buf->segcount > 0) { - if (buffer_is_secure(buf) || pool_is_secure(pool)) - memset(buf->addr[buf->segcount - 1], - 0, buf->segsize); - ret_blk(pool, buf->addr[--buf->segcount]); - } - buf->size = 0; - } - - buf->allocator = ODP_FREEBUF; /* Mark buffer free */ - POOL_LOCK(&pool->buf_lock); - buf->next = pool->buf_freelist; - pool->buf_freelist = buf; - POOL_UNLOCK(&pool->buf_lock); - - uint64_t bufcount = odp_atomic_fetch_add_u32(&pool->bufcount, 1) + 1; - - /* Check if low watermark condition should be deasserted */ - if (bufcount == pool->buf_high_wm && pool->buf_low_wm_assert) { - pool->buf_low_wm_assert = 0; - odp_atomic_inc_u64(&pool->poolstats.buf_high_wm_count); - } - - odp_atomic_inc_u64(&pool->poolstats.buffrees); -} - -static inline void *get_local_buf(local_cache_t *buf_cache, - struct pool_entry_s *pool, - size_t totsize) -{ - odp_buffer_hdr_t *buf = buf_cache->buf_freelist; - - if (odp_likely(buf != NULL)) { - buf_cache->buf_freelist = buf->next; - - if (odp_unlikely(buf->size < totsize)) { - intmax_t needed = totsize - buf->size; - - do { - void *blk = get_blk(pool); - if (odp_unlikely(blk == NULL)) { - ret_buf(pool, buf); - buf_cache->buffrees--; - return NULL; - } - buf->addr[buf->segcount++] = blk; - needed -= pool->seg_size; - } while (needed > 0); - - buf->size = buf->segcount * pool->seg_size; - } - - buf_cache->bufallocs++; - } - - return buf; -} - -static inline void ret_local_buf(local_cache_t *buf_cache, - odp_buffer_hdr_t *buf) -{ - buf->allocator = ODP_FREEBUF; - buf->next = buf_cache->buf_freelist; - buf_cache->buf_freelist = buf; - - buf_cache->buffrees++; -} - -static inline void flush_cache(local_cache_t *buf_cache, - struct pool_entry_s *pool) -{ - odp_buffer_hdr_t *buf = buf_cache->buf_freelist; - uint32_t flush_count = 0; - - while (buf != NULL) { - odp_buffer_hdr_t *next = buf->next; - ret_buf(pool, buf); - buf = next; - flush_count++; - } - - odp_atomic_add_u64(&pool->poolstats.bufallocs, buf_cache->bufallocs); - odp_atomic_add_u64(&pool->poolstats.buffrees, - buf_cache->buffrees - flush_count); - - buf_cache->buf_freelist = NULL; - buf_cache->bufallocs = 0; - buf_cache->buffrees = 0; -} - static inline odp_pool_t pool_index_to_handle(uint32_t pool_id) { return _odp_cast_scalar(odp_pool_t, pool_id); diff --git a/platform/linux-generic/odp_buffer.c b/platform/linux-generic/odp_buffer.c index e7e4d58..ce2fdba 100644 --- a/platform/linux-generic/odp_buffer.c +++ b/platform/linux-generic/odp_buffer.c @@ -67,9 +67,6 @@ int odp_buffer_snprint(char *str, uint32_t n, odp_buffer_t buf) len += snprintf(&str[len], n-len, " size %" PRIu32 "\n", hdr->size); len += snprintf(&str[len], n-len, - " ref_count %" PRIu32 "\n", - odp_atomic_load_u32(&hdr->ref_count)); - len += snprintf(&str[len], n-len, " type %i\n", hdr->type);
return len; diff --git a/platform/linux-generic/odp_packet.c b/platform/linux-generic/odp_packet.c index 0e319d2..474fa81 100644 --- a/platform/linux-generic/odp_packet.c +++ b/platform/linux-generic/odp_packet.c @@ -972,10 +972,7 @@ int _odp_packet_copy_md_to_packet(odp_packet_t srcpkt, odp_packet_t dstpkt) srchdr->buf_hdr.uarea_size ? dsthdr->buf_hdr.uarea_size : srchdr->buf_hdr.uarea_size); - odp_atomic_store_u32( - &dsthdr->buf_hdr.ref_count, - odp_atomic_load_u32( - &srchdr->buf_hdr.ref_count)); + copy_packet_parser_metadata(srchdr, dsthdr);
/* Metadata copied, but return indication of whether the packet diff --git a/platform/linux-generic/odp_pool.c b/platform/linux-generic/odp_pool.c index 419f03f..0a427ed 100644 --- a/platform/linux-generic/odp_pool.c +++ b/platform/linux-generic/odp_pool.c @@ -57,8 +57,15 @@ static const char SHM_DEFAULT_NAME[] = "odp_buffer_pools"; /* Pool entry pointers (for inlining) */ void *pool_entry_ptr[ODP_CONFIG_POOLS];
-/* Cache thread id locally for local cache performance */ -static __thread int local_id; +/* Thread local variables */ +typedef struct pool_local_t { + local_cache_t *cache[ODP_CONFIG_POOLS]; + int thr_id; +} pool_local_t; + +static __thread pool_local_t local; + +static void flush_cache(local_cache_t *buf_cache, struct pool_entry_s *pool);
int odp_pool_init_global(void) { @@ -111,7 +118,19 @@ int odp_pool_init_global(void)
int odp_pool_init_local(void) { - local_id = odp_thread_id(); + pool_entry_t *pool; + int i; + int thr_id = odp_thread_id(); + + memset(&local, 0, sizeof(pool_local_t)); + + for (i = 0; i < ODP_CONFIG_POOLS; i++) { + pool = get_pool_entry(i); + local.cache[i] = &pool->s.local_cache[thr_id]; + local.cache[i]->s.num_buf = 0; + } + + local.thr_id = thr_id; return 0; }
@@ -144,7 +163,14 @@ int odp_pool_term_global(void)
int odp_pool_term_local(void) { - _odp_flush_caches(); + int i; + + for (i = 0; i < ODP_CONFIG_POOLS; i++) { + pool_entry_t *pool = get_pool_entry(i); + + flush_cache(local.cache[i], &pool->s); + } + return 0; }
@@ -179,10 +205,53 @@ int odp_pool_capability(odp_pool_capability_t *capa) return 0; }
-/** +static inline odp_buffer_hdr_t *get_buf(struct pool_entry_s *pool) +{ + odp_buffer_hdr_t *myhead; + + POOL_LOCK(&pool->buf_lock); + + myhead = pool->buf_freelist; + + if (odp_unlikely(myhead == NULL)) { + POOL_UNLOCK(&pool->buf_lock); + odp_atomic_inc_u64(&pool->poolstats.bufempty); + } else { + pool->buf_freelist = myhead->next; + POOL_UNLOCK(&pool->buf_lock); + + odp_atomic_fetch_sub_u32(&pool->bufcount, 1); + odp_atomic_inc_u64(&pool->poolstats.bufallocs); + } + + return (void *)myhead; +} + +static inline void ret_buf(struct pool_entry_s *pool, odp_buffer_hdr_t *buf) +{ + if (!buf->flags.hdrdata && buf->type != ODP_EVENT_BUFFER) { + while (buf->segcount > 0) { + if (buffer_is_secure(buf) || pool_is_secure(pool)) + memset(buf->addr[buf->segcount - 1], + 0, buf->segsize); + ret_blk(pool, buf->addr[--buf->segcount]); + } + buf->size = 0; + } + + buf->allocator = ODP_FREEBUF; /* Mark buffer free */ + POOL_LOCK(&pool->buf_lock); + buf->next = pool->buf_freelist; + pool->buf_freelist = buf; + POOL_UNLOCK(&pool->buf_lock); + + odp_atomic_fetch_add_u32(&pool->bufcount, 1); + odp_atomic_inc_u64(&pool->poolstats.buffrees); +} + +/* * Pool creation */ - odp_pool_t _pool_create(const char *name, odp_pool_param_t *params, uint32_t shmflags) @@ -208,9 +277,6 @@ odp_pool_t _pool_create(const char *name, /* Restriction for v1.0: All non-packet buffers are unsegmented */ int unseg = 1;
- /* Restriction for v1.0: No zeroization support */ - const int zeroized = 0; - uint32_t blk_size, buf_stride, buf_num, blk_num, seg_len = 0; uint32_t buf_align = params->type == ODP_POOL_BUFFER ? params->buf.align : 0; @@ -350,7 +416,6 @@ odp_pool_t _pool_create(const char *name, POOL_UNLOCK(&pool->s.lock);
pool->s.flags.unsegmented = unseg; - pool->s.flags.zeroized = zeroized; pool->s.seg_size = unseg ? blk_size : seg_len; pool->s.blk_size = blk_size;
@@ -383,9 +448,7 @@ odp_pool_t _pool_create(const char *name, /* Iniitalize buffer metadata */ tmp->allocator = ODP_FREEBUF; tmp->flags.all = 0; - tmp->flags.zeroized = zeroized; tmp->size = 0; - odp_atomic_init_u32(&tmp->ref_count, 0); tmp->type = params->type; tmp->event_type = params->type; tmp->pool_hdl = pool->s.pool_hdl; @@ -503,6 +566,41 @@ int odp_pool_info(odp_pool_t pool_hdl, odp_pool_info_t *info) return 0; }
+static inline void get_local_cache_bufs(local_cache_t *buf_cache, uint32_t idx, + odp_buffer_hdr_t *buf_hdr[], + uint32_t num) +{ + uint32_t i; + + for (i = 0; i < num; i++) { + buf_hdr[i] = buf_cache->s.buf[idx + i]; + odp_prefetch(buf_hdr[i]); + odp_prefetch_store(buf_hdr[i]); + } +} + +static void flush_cache(local_cache_t *buf_cache, struct pool_entry_s *pool) +{ + uint32_t flush_count = 0; + uint32_t num; + + while ((num = buf_cache->s.num_buf)) { + odp_buffer_hdr_t *buf; + + buf = buf_cache->s.buf[num - 1]; + ret_buf(pool, buf); + flush_count++; + buf_cache->s.num_buf--; + } + + odp_atomic_add_u64(&pool->poolstats.bufallocs, buf_cache->s.bufallocs); + odp_atomic_add_u64(&pool->poolstats.buffrees, + buf_cache->s.buffrees - flush_count); + + buf_cache->s.bufallocs = 0; + buf_cache->s.buffrees = 0; +} + int odp_pool_destroy(odp_pool_t pool_hdl) { uint32_t pool_id = pool_handle_to_index(pool_hdl); @@ -621,71 +719,207 @@ void seg_free_tail(odp_buffer_hdr_t *buf_hdr, int segcount) buf_hdr->size = buf_hdr->segcount * pool->s.seg_size; }
-odp_buffer_t buffer_alloc(odp_pool_t pool_hdl, size_t size) +static inline int get_local_bufs(local_cache_t *buf_cache, + odp_buffer_hdr_t *buf_hdr[], uint32_t max_num) +{ + uint32_t num_buf = buf_cache->s.num_buf; + uint32_t num = num_buf; + + if (odp_unlikely(num_buf == 0)) + return 0; + + if (odp_likely(max_num < num)) + num = max_num; + + get_local_cache_bufs(buf_cache, num_buf - num, buf_hdr, num); + buf_cache->s.num_buf -= num; + buf_cache->s.bufallocs += num; + + return num; +} + +static inline void ret_local_buf(local_cache_t *buf_cache, uint32_t idx, + odp_buffer_hdr_t *buf) +{ + buf_cache->s.buf[idx] = buf; + buf_cache->s.num_buf++; + buf_cache->s.buffrees++; +} + +static inline void ret_local_bufs(local_cache_t *buf_cache, uint32_t idx, + odp_buffer_hdr_t *buf[], int num_buf) +{ + int i; + + for (i = 0; i < num_buf; i++) + buf_cache->s.buf[idx + i] = buf[i]; + + buf_cache->s.num_buf += num_buf; + buf_cache->s.buffrees += num_buf; +} + +int buffer_alloc_multi(odp_pool_t pool_hdl, size_t size, + odp_buffer_t buf[], int max_num) { uint32_t pool_id = pool_handle_to_index(pool_hdl); pool_entry_t *pool = get_pool_entry(pool_id); uintmax_t totsize = pool->s.headroom + size + pool->s.tailroom; - odp_anybuf_t *buf; + odp_buffer_hdr_t *buf_tbl[max_num]; + odp_buffer_hdr_t *buf_hdr; + int num, i; + intmax_t needed; + void *blk;
/* Reject oversized allocation requests */ if ((pool->s.flags.unsegmented && totsize > pool->s.seg_size) || (!pool->s.flags.unsegmented && totsize > pool->s.seg_size * ODP_BUFFER_MAX_SEG)) - return ODP_BUFFER_INVALID; + return 0;
/* Try to satisfy request from the local cache */ - buf = (odp_anybuf_t *) - (void *)get_local_buf(&pool->s.local_cache[local_id], - &pool->s, totsize); + num = get_local_bufs(local.cache[pool_id], buf_tbl, max_num);
/* If cache is empty, satisfy request from the pool */ - if (odp_unlikely(buf == NULL)) { - buf = (odp_anybuf_t *)(void *)get_buf(&pool->s); + if (odp_unlikely(num < max_num)) { + for (; num < max_num; num++) { + buf_hdr = get_buf(&pool->s); + + if (odp_unlikely(buf_hdr == NULL)) + goto pool_empty; + + /* Get blocks for this buffer, if pool uses + * application data */ + if (buf_hdr->size < totsize) { + uint32_t segcount; + + needed = totsize - buf_hdr->size; + do { + blk = get_blk(&pool->s); + if (odp_unlikely(blk == NULL)) { + ret_buf(&pool->s, buf_hdr); + goto pool_empty; + } + + segcount = buf_hdr->segcount++; + buf_hdr->addr[segcount] = blk; + needed -= pool->s.seg_size; + } while (needed > 0); + buf_hdr->size = buf_hdr->segcount * + pool->s.seg_size; + }
- if (odp_unlikely(buf == NULL)) - return ODP_BUFFER_INVALID; + buf_tbl[num] = buf_hdr; + } + }
- /* Get blocks for this buffer, if pool uses application data */ - if (buf->buf.size < totsize) { - intmax_t needed = totsize - buf->buf.size; +pool_empty: + for (i = 0; i < num; i++) { + buf_hdr = buf_tbl[i]; + + /* Mark buffer as allocated */ + buf_hdr->allocator = local.thr_id; + + /* By default, buffers are not associated with + * an ordered queue */ + buf_hdr->origin_qe = NULL; + + buf[i] = odp_hdr_to_buf(buf_hdr); + + /* Add more segments if buffer from local cache is too small */ + if (odp_unlikely(buf_hdr->size < totsize)) { + needed = totsize - buf_hdr->size; do { - uint8_t *blk = get_blk(&pool->s); - if (blk == NULL) { - ret_buf(&pool->s, &buf->buf); - return ODP_BUFFER_INVALID; + blk = get_blk(&pool->s); + if (odp_unlikely(blk == NULL)) { + int j; + + ret_buf(&pool->s, buf_hdr); + buf_hdr = NULL; + local.cache[pool_id]->s.buffrees--; + + /* move remaining bufs up one step + * and update loop counters */ + num--; + for (j = i; j < num; j++) + buf_tbl[j] = buf_tbl[j + 1]; + + i--; + break; } - buf->buf.addr[buf->buf.segcount++] = blk; needed -= pool->s.seg_size; + buf_hdr->addr[buf_hdr->segcount++] = blk; + buf_hdr->size = buf_hdr->segcount * + pool->s.seg_size; } while (needed > 0); - buf->buf.size = buf->buf.segcount * pool->s.seg_size; } }
- /* Mark buffer as allocated */ - buf->buf.allocator = local_id; + return num; +}
- /* By default, buffers inherit their pool's zeroization setting */ - buf->buf.flags.zeroized = pool->s.flags.zeroized; +odp_buffer_t buffer_alloc(odp_pool_t pool_hdl, size_t size) +{ + uint32_t pool_id = pool_handle_to_index(pool_hdl); + pool_entry_t *pool = get_pool_entry(pool_id); + uintmax_t totsize = pool->s.headroom + size + pool->s.tailroom; + odp_buffer_hdr_t *buf_hdr; + intmax_t needed; + void *blk;
- /* By default, buffers are not associated with an ordered queue */ - buf->buf.origin_qe = NULL; + /* Reject oversized allocation requests */ + if ((pool->s.flags.unsegmented && totsize > pool->s.seg_size) || + (!pool->s.flags.unsegmented && + totsize > pool->s.seg_size * ODP_BUFFER_MAX_SEG)) + return 0;
- return odp_hdr_to_buf(&buf->buf); -} + /* Try to satisfy request from the local cache. If cache is empty, + * satisfy request from the pool */ + if (odp_unlikely(!get_local_bufs(local.cache[pool_id], &buf_hdr, 1))) { + buf_hdr = get_buf(&pool->s);
-int buffer_alloc_multi(odp_pool_t pool_hdl, size_t size, - odp_buffer_t buf[], int num) -{ - int count; + if (odp_unlikely(buf_hdr == NULL)) + return ODP_BUFFER_INVALID; + + /* Get blocks for this buffer, if pool uses application data */ + if (buf_hdr->size < totsize) { + needed = totsize - buf_hdr->size; + do { + blk = get_blk(&pool->s); + if (odp_unlikely(blk == NULL)) { + ret_buf(&pool->s, buf_hdr); + return ODP_BUFFER_INVALID; + } + buf_hdr->addr[buf_hdr->segcount++] = blk; + needed -= pool->s.seg_size; + } while (needed > 0); + buf_hdr->size = buf_hdr->segcount * pool->s.seg_size; + } + } + /* Mark buffer as allocated */ + buf_hdr->allocator = local.thr_id;
- for (count = 0; count < num; ++count) { - buf[count] = buffer_alloc(pool_hdl, size); - if (buf[count] == ODP_BUFFER_INVALID) - break; + /* By default, buffers are not associated with + * an ordered queue */ + buf_hdr->origin_qe = NULL; + + /* Add more segments if buffer from local cache is too small */ + if (odp_unlikely(buf_hdr->size < totsize)) { + needed = totsize - buf_hdr->size; + do { + blk = get_blk(&pool->s); + if (odp_unlikely(blk == NULL)) { + ret_buf(&pool->s, buf_hdr); + buf_hdr = NULL; + local.cache[pool_id]->s.buffrees--; + return ODP_BUFFER_INVALID; + } + buf_hdr->addr[buf_hdr->segcount++] = blk; + needed -= pool->s.seg_size; + } while (needed > 0); + buf_hdr->size = buf_hdr->segcount * pool->s.seg_size; }
- return count; + return odp_hdr_to_buf(buf_hdr); }
odp_buffer_t odp_buffer_alloc(odp_pool_t pool_hdl) @@ -701,35 +935,132 @@ int odp_buffer_alloc_multi(odp_pool_t pool_hdl, odp_buffer_t buf[], int num) return buffer_alloc_multi(pool_hdl, buf_size, buf, num); }
-void odp_buffer_free(odp_buffer_t buf) +static void multi_pool_free(odp_buffer_hdr_t *buf_hdr[], int num_buf) { - odp_buffer_hdr_t *buf_hdr = odp_buf_to_hdr(buf); - pool_entry_t *pool = odp_buf_to_pool(buf_hdr); + uint32_t pool_id, num; + local_cache_t *buf_cache; + pool_entry_t *pool; + int i, j, idx;
- ODP_ASSERT(buf_hdr->allocator != ODP_FREEBUF); + for (i = 0; i < num_buf; i++) { + pool_id = pool_handle_to_index(buf_hdr[i]->pool_hdl); + buf_cache = local.cache[pool_id]; + num = buf_cache->s.num_buf; + + if (num < POOL_MAX_LOCAL_BUFS) { + ret_local_buf(buf_cache, num, buf_hdr[i]); + continue; + } + + idx = POOL_MAX_LOCAL_BUFS - POOL_CHUNK_SIZE; + pool = get_pool_entry(pool_id); + + /* local cache full, return a chunk */ + for (j = 0; j < POOL_CHUNK_SIZE; j++) { + odp_buffer_hdr_t *tmp; + + tmp = buf_cache->s.buf[idx + i]; + ret_buf(&pool->s, tmp); + }
- if (odp_unlikely(pool->s.buf_low_wm_assert || pool->s.blk_low_wm_assert)) - ret_buf(&pool->s, buf_hdr); - else - ret_local_buf(&pool->s.local_cache[local_id], buf_hdr); + num = POOL_MAX_LOCAL_BUFS - POOL_CHUNK_SIZE; + buf_cache->s.num_buf = num; + ret_local_buf(buf_cache, num, buf_hdr[i]); + } }
-void odp_buffer_free_multi(const odp_buffer_t buf[], int num) +void buffer_free_multi(uint32_t pool_id, + const odp_buffer_t buf[], int num_free) { - int i; + local_cache_t *buf_cache = local.cache[pool_id]; + uint32_t num; + int i, idx; + pool_entry_t *pool; + odp_buffer_hdr_t *buf_hdr[num_free]; + int multi_pool = 0; + + for (i = 0; i < num_free; i++) { + uint32_t id; + + buf_hdr[i] = odp_buf_to_hdr(buf[i]); + ODP_ASSERT(buf_hdr[i]->allocator != ODP_FREEBUF); + buf_hdr[i]->allocator = ODP_FREEBUF; + id = pool_handle_to_index(buf_hdr[i]->pool_hdl); + multi_pool |= (pool_id != id); + } + + if (odp_unlikely(multi_pool)) { + multi_pool_free(buf_hdr, num_free); + return; + } + + num = buf_cache->s.num_buf;
- for (i = 0; i < num; ++i) - odp_buffer_free(buf[i]); + if (odp_likely((num + num_free) < POOL_MAX_LOCAL_BUFS)) { + ret_local_bufs(buf_cache, num, buf_hdr, num_free); + return; + } + + pool = get_pool_entry(pool_id); + + /* Return at least one chunk into the global pool */ + if (odp_unlikely(num_free > POOL_CHUNK_SIZE)) { + for (i = 0; i < num_free; i++) + ret_buf(&pool->s, buf_hdr[i]); + + return; + } + + idx = num - POOL_CHUNK_SIZE; + for (i = 0; i < POOL_CHUNK_SIZE; i++) + ret_buf(&pool->s, buf_cache->s.buf[idx + i]); + + num -= POOL_CHUNK_SIZE; + buf_cache->s.num_buf = num; + ret_local_bufs(buf_cache, num, buf_hdr, num_free); }
-void _odp_flush_caches(void) +void buffer_free(uint32_t pool_id, const odp_buffer_t buf) { + local_cache_t *buf_cache = local.cache[pool_id]; + uint32_t num; int i; + pool_entry_t *pool; + odp_buffer_hdr_t *buf_hdr;
- for (i = 0; i < ODP_CONFIG_POOLS; i++) { - pool_entry_t *pool = get_pool_entry(i); - flush_cache(&pool->s.local_cache[local_id], &pool->s); + buf_hdr = odp_buf_to_hdr(buf); + ODP_ASSERT(buf_hdr->allocator != ODP_FREEBUF); + buf_hdr->allocator = ODP_FREEBUF; + + num = buf_cache->s.num_buf; + + if (odp_likely((num + 1) < POOL_MAX_LOCAL_BUFS)) { + ret_local_bufs(buf_cache, num, &buf_hdr, 1); + return; } + + pool = get_pool_entry(pool_id); + + num -= POOL_CHUNK_SIZE; + for (i = 0; i < POOL_CHUNK_SIZE; i++) + ret_buf(&pool->s, buf_cache->s.buf[num + i]); + + buf_cache->s.num_buf = num; + ret_local_bufs(buf_cache, num, &buf_hdr, 1); +} + +void odp_buffer_free(odp_buffer_t buf) +{ + uint32_t pool_id = pool_id_from_buf(buf); + + buffer_free(pool_id, buf); +} + +void odp_buffer_free_multi(const odp_buffer_t buf[], int num) +{ + uint32_t pool_id = pool_id_from_buf(buf[0]); + + buffer_free_multi(pool_id, buf, num); }
void odp_pool_print(odp_pool_t pool_hdl) @@ -774,7 +1105,6 @@ void odp_pool_print(odp_pool_t pool_hdl) pool->s.quiesced ? "quiesced" : "active"); ODP_DBG(" pool opts %s, %s, %s\n", pool->s.flags.unsegmented ? "unsegmented" : "segmented", - pool->s.flags.zeroized ? "zeroized" : "non-zeroized", pool->s.flags.predefined ? "predefined" : "created"); ODP_DBG(" pool base %p\n", pool->s.pool_base_addr); ODP_DBG(" pool size %zu (%zu pages)\n", @@ -817,10 +1147,11 @@ void odp_pool_print(odp_pool_t pool_hdl) ODP_DBG(" blk low wm count %lu\n", blklowmct); }
- odp_pool_t odp_buffer_pool(odp_buffer_t buf) { - return odp_buf_to_hdr(buf)->pool_hdl; + uint32_t pool_id = pool_id_from_buf(buf); + + return pool_index_to_handle(pool_id); }
void odp_pool_param_init(odp_pool_param_t *params)
-----------------------------------------------------------------------
Summary of changes: .../linux-generic/include/odp_buffer_inlines.h | 26 +- .../linux-generic/include/odp_buffer_internal.h | 5 +- platform/linux-generic/include/odp_internal.h | 2 - .../linux-generic/include/odp_packet_internal.h | 4 +- platform/linux-generic/include/odp_packet_netmap.h | 6 + platform/linux-generic/include/odp_packet_socket.h | 1 + platform/linux-generic/include/odp_pool_internal.h | 143 +------ platform/linux-generic/odp_buffer.c | 3 - platform/linux-generic/odp_packet.c | 68 +-- platform/linux-generic/odp_pool.c | 465 ++++++++++++++++++--- platform/linux-generic/pktio/dpdk.c | 24 +- platform/linux-generic/pktio/netmap.c | 127 +++--- platform/linux-generic/pktio/pcap.c | 26 +- platform/linux-generic/pktio/socket.c | 21 +- platform/linux-generic/pktio/socket_mmap.c | 7 +- platform/linux-generic/pktio/tap.c | 7 +- test/common_plat/performance/odp_scheduling.c | 50 ++- 17 files changed, 621 insertions(+), 364 deletions(-)
hooks/post-receive
-
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