From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 727E53784 for ; Tue, 15 Sep 2015 15:08:46 +0200 (CEST) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga103.fm.intel.com with ESMTP; 15 Sep 2015 06:07:11 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,536,1437462000"; d="scan'208";a="769417778" Received: from unknown (HELO stargo) ([10.217.248.233]) by orsmga001.jf.intel.com with SMTP; 15 Sep 2015 06:07:10 -0700 Received: by stargo (sSMTP sendmail emulation); Tue, 15 Sep 2015 15:09:34 +0200 From: Piotr Azarewicz To: dev@dpdk.org Date: Tue, 15 Sep 2015 15:06:33 +0200 Message-Id: <1442322395-23365-2-git-send-email-piotrx.t.azarewicz@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1442322395-23365-1-git-send-email-piotrx.t.azarewicz@intel.com> References: <1442322395-23365-1-git-send-email-piotrx.t.azarewicz@intel.com> Subject: [dpdk-dev] [PATCH v1 1/3] port: add mp/mc ring ports X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Sep 2015 13:08:47 -0000 ring_multi_reader input port (on top of multi consumer rte_ring) ring_multi_writer output port (on top of multi producer rte_ring) Signed-off-by: Piotr Azarewicz --- lib/librte_port/rte_port_ring.c | 399 ++++++++++++++++++++++++++++++++++++++- lib/librte_port/rte_port_ring.h | 34 +++- 2 files changed, 424 insertions(+), 9 deletions(-) diff --git a/lib/librte_port/rte_port_ring.c b/lib/librte_port/rte_port_ring.c index 9461c05..6b06466 100644 --- a/lib/librte_port/rte_port_ring.c +++ b/lib/librte_port/rte_port_ring.c @@ -70,8 +70,10 @@ rte_port_ring_reader_create(void *params, int socket_id) struct rte_port_ring_reader *port; /* Check input parameters */ - if (conf == NULL) { - RTE_LOG(ERR, PORT, "%s: params is NULL\n", __func__); + if ((conf == NULL) || + (conf->ring == NULL) || + (conf->ring->cons.sc_dequeue != 1)) { + RTE_LOG(ERR, PORT, "%s: Invalid Parameters\n", __func__); return NULL; } @@ -166,7 +168,8 @@ rte_port_ring_writer_create(void *params, int socket_id) /* Check input parameters */ if ((conf == NULL) || - (conf->ring == NULL) || + (conf->ring == NULL) || + (conf->ring->prod.sp_enqueue != 1) || (conf->tx_burst_sz > RTE_PORT_IN_BURST_SIZE_MAX)) { RTE_LOG(ERR, PORT, "%s: Invalid Parameters\n", __func__); return NULL; @@ -343,7 +346,8 @@ rte_port_ring_writer_nodrop_create(void *params, int socket_id) /* Check input parameters */ if ((conf == NULL) || - (conf->ring == NULL) || + (conf->ring == NULL) || + (conf->ring->prod.sp_enqueue != 1) || (conf->tx_burst_sz > RTE_PORT_IN_BURST_SIZE_MAX)) { RTE_LOG(ERR, PORT, "%s: Invalid Parameters\n", __func__); return NULL; @@ -448,6 +452,7 @@ rte_port_ring_writer_nodrop_tx_bulk(void *port, */ for (; n_pkts_ok < n_pkts; n_pkts_ok++) { struct rte_mbuf *pkt = pkts[n_pkts_ok]; + p->tx_buf[p->tx_buf_count++] = pkt; } send_burst_nodrop(p); @@ -513,6 +518,367 @@ rte_port_ring_writer_nodrop_stats_read(void *port, } /* + * Port RING Multi Reader + */ +static void * +rte_port_ring_multi_reader_create(void *params, int socket_id) +{ + struct rte_port_ring_multi_reader_params *conf = + (struct rte_port_ring_multi_reader_params *) params; + struct rte_port_ring_reader *port; + + /* Check input parameters */ + if ((conf == NULL) || + (conf->ring == NULL) || + (conf->ring->cons.sc_dequeue != 0)) { + RTE_LOG(ERR, PORT, "%s: Invalid Parameters\n", __func__); + return NULL; + } + + /* Memory allocation */ + port = rte_zmalloc_socket("PORT", sizeof(*port), + RTE_CACHE_LINE_SIZE, socket_id); + if (port == NULL) { + RTE_LOG(ERR, PORT, "%s: Failed to allocate port\n", __func__); + return NULL; + } + + /* Initialization */ + port->ring = conf->ring; + + return port; +} + +static int +rte_port_ring_multi_reader_rx(void *port, struct rte_mbuf **pkts, uint32_t n_pkts) +{ + struct rte_port_ring_reader *p = (struct rte_port_ring_reader *) port; + uint32_t nb_rx; + + nb_rx = rte_ring_mc_dequeue_burst(p->ring, (void **) pkts, n_pkts); + RTE_PORT_RING_READER_STATS_PKTS_IN_ADD(p, nb_rx); + + return nb_rx; +} + +static int +rte_port_ring_multi_reader_free(void *port) +{ + if (port == NULL) { + RTE_LOG(ERR, PORT, "%s: port is NULL\n", __func__); + return -EINVAL; + } + + rte_free(port); + + return 0; +} + +/* + * Port RING Multi Writer + */ +static void * +rte_port_ring_multi_writer_create(void *params, int socket_id) +{ + struct rte_port_ring_multi_writer_params *conf = + (struct rte_port_ring_multi_writer_params *) params; + struct rte_port_ring_writer *port; + + /* Check input parameters */ + if ((conf == NULL) || + (conf->ring == NULL) || + (conf->ring->prod.sp_enqueue != 0) || + (conf->tx_burst_sz > RTE_PORT_IN_BURST_SIZE_MAX)) { + RTE_LOG(ERR, PORT, "%s: Invalid Parameters\n", __func__); + return NULL; + } + + /* Memory allocation */ + port = rte_zmalloc_socket("PORT", sizeof(*port), + RTE_CACHE_LINE_SIZE, socket_id); + if (port == NULL) { + RTE_LOG(ERR, PORT, "%s: Failed to allocate port\n", __func__); + return NULL; + } + + /* Initialization */ + port->ring = conf->ring; + port->tx_burst_sz = conf->tx_burst_sz; + port->tx_buf_count = 0; + port->bsz_mask = 1LLU << (conf->tx_burst_sz - 1); + + return port; +} + +static inline void +send_burst_mp(struct rte_port_ring_writer *p) +{ + uint32_t nb_tx; + + nb_tx = rte_ring_mp_enqueue_burst(p->ring, (void **)p->tx_buf, + p->tx_buf_count); + + RTE_PORT_RING_WRITER_STATS_PKTS_DROP_ADD(p, p->tx_buf_count - nb_tx); + for ( ; nb_tx < p->tx_buf_count; nb_tx++) + rte_pktmbuf_free(p->tx_buf[nb_tx]); + + p->tx_buf_count = 0; +} + +static int +rte_port_ring_multi_writer_tx(void *port, struct rte_mbuf *pkt) +{ + struct rte_port_ring_writer *p = (struct rte_port_ring_writer *) port; + + p->tx_buf[p->tx_buf_count++] = pkt; + RTE_PORT_RING_WRITER_STATS_PKTS_IN_ADD(p, 1); + if (p->tx_buf_count >= p->tx_burst_sz) + send_burst_mp(p); + + return 0; +} + +static int +rte_port_ring_multi_writer_tx_bulk(void *port, + struct rte_mbuf **pkts, + uint64_t pkts_mask) +{ + struct rte_port_ring_writer *p = + (struct rte_port_ring_writer *) port; + + uint32_t bsz_mask = p->bsz_mask; + uint32_t tx_buf_count = p->tx_buf_count; + uint64_t expr = (pkts_mask & (pkts_mask + 1)) | + ((pkts_mask & bsz_mask) ^ bsz_mask); + + if (expr == 0) { + uint64_t n_pkts = __builtin_popcountll(pkts_mask); + uint32_t n_pkts_ok; + + if (tx_buf_count) + send_burst_mp(p); + + RTE_PORT_RING_WRITER_STATS_PKTS_IN_ADD(p, n_pkts); + n_pkts_ok = rte_ring_mp_enqueue_burst(p->ring, (void **)pkts, n_pkts); + + RTE_PORT_RING_WRITER_STATS_PKTS_DROP_ADD(p, n_pkts - n_pkts_ok); + for ( ; n_pkts_ok < n_pkts; n_pkts_ok++) { + struct rte_mbuf *pkt = pkts[n_pkts_ok]; + + rte_pktmbuf_free(pkt); + } + } else { + for ( ; pkts_mask; ) { + uint32_t pkt_index = __builtin_ctzll(pkts_mask); + uint64_t pkt_mask = 1LLU << pkt_index; + struct rte_mbuf *pkt = pkts[pkt_index]; + + p->tx_buf[tx_buf_count++] = pkt; + RTE_PORT_RING_WRITER_STATS_PKTS_IN_ADD(p, 1); + pkts_mask &= ~pkt_mask; + } + + p->tx_buf_count = tx_buf_count; + if (tx_buf_count >= p->tx_burst_sz) + send_burst_mp(p); + } + + return 0; +} + +static int +rte_port_ring_multi_writer_flush(void *port) +{ + struct rte_port_ring_writer *p = (struct rte_port_ring_writer *) port; + + if (p->tx_buf_count > 0) + send_burst_mp(p); + + return 0; +} + +static int +rte_port_ring_multi_writer_free(void *port) +{ + if (port == NULL) { + RTE_LOG(ERR, PORT, "%s: Port is NULL\n", __func__); + return -EINVAL; + } + + rte_port_ring_multi_writer_flush(port); + rte_free(port); + + return 0; +} + +/* + * Port RING Multi Writer Nodrop + */ +static void * +rte_port_ring_multi_writer_nodrop_create(void *params, int socket_id) +{ + struct rte_port_ring_multi_writer_nodrop_params *conf = + (struct rte_port_ring_multi_writer_nodrop_params *) params; + struct rte_port_ring_writer_nodrop *port; + + /* Check input parameters */ + if ((conf == NULL) || + (conf->ring == NULL) || + (conf->ring->prod.sp_enqueue != 0) || + (conf->tx_burst_sz > RTE_PORT_IN_BURST_SIZE_MAX)) { + RTE_LOG(ERR, PORT, "%s: Invalid Parameters\n", __func__); + return NULL; + } + + /* Memory allocation */ + port = rte_zmalloc_socket("PORT", sizeof(*port), + RTE_CACHE_LINE_SIZE, socket_id); + if (port == NULL) { + RTE_LOG(ERR, PORT, "%s: Failed to allocate port\n", __func__); + return NULL; + } + + /* Initialization */ + port->ring = conf->ring; + port->tx_burst_sz = conf->tx_burst_sz; + port->tx_buf_count = 0; + port->bsz_mask = 1LLU << (conf->tx_burst_sz - 1); + + /* + * When n_retries is 0 it means that we should wait for every packet to + * send no matter how many retries should it take. To limit number of + * branches in fast path, we use UINT64_MAX instead of branching. + */ + port->n_retries = (conf->n_retries == 0) ? UINT64_MAX : conf->n_retries; + + return port; +} + +static inline void +send_burst_mp_nodrop(struct rte_port_ring_writer_nodrop *p) +{ + uint32_t nb_tx = 0, i; + + nb_tx = rte_ring_mp_enqueue_burst(p->ring, (void **)p->tx_buf, + p->tx_buf_count); + + /* We sent all the packets in a first try */ + if (nb_tx >= p->tx_buf_count) + return; + + for (i = 0; i < p->n_retries; i++) { + nb_tx += rte_ring_mp_enqueue_burst(p->ring, + (void **) (p->tx_buf + nb_tx), p->tx_buf_count - nb_tx); + + /* We sent all the packets in more than one try */ + if (nb_tx >= p->tx_buf_count) + return; + } + + /* We didn't send the packets in maximum allowed attempts */ + RTE_PORT_RING_WRITER_NODROP_STATS_PKTS_DROP_ADD(p, p->tx_buf_count - nb_tx); + for ( ; nb_tx < p->tx_buf_count; nb_tx++) + rte_pktmbuf_free(p->tx_buf[nb_tx]); + + p->tx_buf_count = 0; +} + +static int +rte_port_ring_multi_writer_nodrop_tx(void *port, struct rte_mbuf *pkt) +{ + struct rte_port_ring_writer_nodrop *p = + (struct rte_port_ring_writer_nodrop *) port; + + p->tx_buf[p->tx_buf_count++] = pkt; + RTE_PORT_RING_WRITER_NODROP_STATS_PKTS_IN_ADD(p, 1); + if (p->tx_buf_count >= p->tx_burst_sz) + send_burst_mp_nodrop(p); + + return 0; +} + +static int +rte_port_ring_multi_writer_nodrop_tx_bulk(void *port, + struct rte_mbuf **pkts, + uint64_t pkts_mask) +{ + struct rte_port_ring_writer_nodrop *p = + (struct rte_port_ring_writer_nodrop *) port; + + uint32_t bsz_mask = p->bsz_mask; + uint32_t tx_buf_count = p->tx_buf_count; + uint64_t expr = (pkts_mask & (pkts_mask + 1)) | + ((pkts_mask & bsz_mask) ^ bsz_mask); + + if (expr == 0) { + uint64_t n_pkts = __builtin_popcountll(pkts_mask); + uint32_t n_pkts_ok; + + if (tx_buf_count) + send_burst_mp_nodrop(p); + + RTE_PORT_RING_WRITER_NODROP_STATS_PKTS_IN_ADD(p, n_pkts); + n_pkts_ok = rte_ring_mp_enqueue_burst(p->ring, (void **)pkts, n_pkts); + + if (n_pkts_ok >= n_pkts) + return 0; + + /* + * If we didnt manage to send all packets in single burst, move + * remaining packets to the buffer and call send burst. + */ + for (; n_pkts_ok < n_pkts; n_pkts_ok++) { + struct rte_mbuf *pkt = pkts[n_pkts_ok]; + + p->tx_buf[p->tx_buf_count++] = pkt; + } + send_burst_mp_nodrop(p); + } else { + for ( ; pkts_mask; ) { + uint32_t pkt_index = __builtin_ctzll(pkts_mask); + uint64_t pkt_mask = 1LLU << pkt_index; + struct rte_mbuf *pkt = pkts[pkt_index]; + + p->tx_buf[tx_buf_count++] = pkt; + RTE_PORT_RING_WRITER_NODROP_STATS_PKTS_IN_ADD(p, 1); + pkts_mask &= ~pkt_mask; + } + + p->tx_buf_count = tx_buf_count; + if (tx_buf_count >= p->tx_burst_sz) + send_burst_mp_nodrop(p); + } + + return 0; +} + +static int +rte_port_ring_multi_writer_nodrop_flush(void *port) +{ + struct rte_port_ring_writer_nodrop *p = + (struct rte_port_ring_writer_nodrop *) port; + + if (p->tx_buf_count > 0) + send_burst_mp_nodrop(p); + + return 0; +} + +static int +rte_port_ring_multi_writer_nodrop_free(void *port) +{ + if (port == NULL) { + RTE_LOG(ERR, PORT, "%s: Port is NULL\n", __func__); + return -EINVAL; + } + + rte_port_ring_multi_writer_nodrop_flush(port); + rte_free(port); + + return 0; +} + +/* * Summary of port operations */ struct rte_port_in_ops rte_port_ring_reader_ops = { @@ -539,3 +905,28 @@ struct rte_port_out_ops rte_port_ring_writer_nodrop_ops = { .f_flush = rte_port_ring_writer_nodrop_flush, .f_stats = rte_port_ring_writer_nodrop_stats_read, }; + +struct rte_port_in_ops rte_port_ring_multi_reader_ops = { + .f_create = rte_port_ring_multi_reader_create, + .f_free = rte_port_ring_multi_reader_free, + .f_rx = rte_port_ring_multi_reader_rx, + .f_stats = rte_port_ring_reader_stats_read, +}; + +struct rte_port_out_ops rte_port_ring_multi_writer_ops = { + .f_create = rte_port_ring_multi_writer_create, + .f_free = rte_port_ring_multi_writer_free, + .f_tx = rte_port_ring_multi_writer_tx, + .f_tx_bulk = rte_port_ring_multi_writer_tx_bulk, + .f_flush = rte_port_ring_multi_writer_flush, + .f_stats = rte_port_ring_writer_stats_read, +}; + +struct rte_port_out_ops rte_port_ring_multi_writer_nodrop_ops = { + .f_create = rte_port_ring_multi_writer_nodrop_create, + .f_free = rte_port_ring_multi_writer_nodrop_free, + .f_tx = rte_port_ring_multi_writer_nodrop_tx, + .f_tx_bulk = rte_port_ring_multi_writer_nodrop_tx_bulk, + .f_flush = rte_port_ring_multi_writer_nodrop_flush, + .f_stats = rte_port_ring_writer_nodrop_stats_read, +}; diff --git a/lib/librte_port/rte_port_ring.h b/lib/librte_port/rte_port_ring.h index 89a219b..6999340 100644 --- a/lib/librte_port/rte_port_ring.h +++ b/lib/librte_port/rte_port_ring.h @@ -42,8 +42,14 @@ extern "C" { * @file * RTE Port Ring * - * ring_reader: input port built on top of pre-initialized single consumer ring - * ring_writer: output port built on top of pre-initialized single producer ring + * ring_reader: + * input port built on top of pre-initialized single consumer ring + * ring_writer: + * output port built on top of pre-initialized single producer ring + * ring_multi_reader: + * input port built on top of pre-initialized multi consumers ring + * ring_multi_writer: + * output port built on top of pre-initialized multi producers ring * ***/ @@ -55,7 +61,7 @@ extern "C" { /** ring_reader port parameters */ struct rte_port_ring_reader_params { - /** Underlying single consumer ring that has to be pre-initialized */ + /** Underlying consumer ring that has to be pre-initialized */ struct rte_ring *ring; }; @@ -64,7 +70,7 @@ extern struct rte_port_in_ops rte_port_ring_reader_ops; /** ring_writer port parameters */ struct rte_port_ring_writer_params { - /** Underlying single producer ring that has to be pre-initialized */ + /** Underlying producer ring that has to be pre-initialized */ struct rte_ring *ring; /** Recommended burst size to ring. The actual burst size can be @@ -77,7 +83,7 @@ extern struct rte_port_out_ops rte_port_ring_writer_ops; /** ring_writer_nodrop port parameters */ struct rte_port_ring_writer_nodrop_params { - /** Underlying single producer ring that has to be pre-initialized */ + /** Underlying producer ring that has to be pre-initialized */ struct rte_ring *ring; /** Recommended burst size to ring. The actual burst size can be @@ -91,6 +97,24 @@ struct rte_port_ring_writer_nodrop_params { /** ring_writer_nodrop port operations */ extern struct rte_port_out_ops rte_port_ring_writer_nodrop_ops; +/** ring_multi_reader port parameters */ +#define rte_port_ring_multi_reader_params rte_port_ring_reader_params + +/** ring_multi_reader port operations */ +extern struct rte_port_in_ops rte_port_ring_multi_reader_ops; + +/** ring_multi_writer port parameters */ +#define rte_port_ring_multi_writer_params rte_port_ring_writer_params + +/** ring_multi_writer port operations */ +extern struct rte_port_out_ops rte_port_ring_multi_writer_ops; + +/** ring_multi_writer_nodrop port parameters */ +#define rte_port_ring_multi_writer_nodrop_params rte_port_ring_writer_nodrop_params + +/** ring_multi_writer_nodrop port operations */ +extern struct rte_port_out_ops rte_port_ring_multi_writer_nodrop_ops; + #ifdef __cplusplus } #endif -- 1.7.9.5