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[204.195.96.226]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2bd7a0867fcsm4297018a91.29.2024.05.21.10.05.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 May 2024 10:05:09 -0700 (PDT) From: Stephen Hemminger To: dev@dpdk.org Cc: Stephen Hemminger , Tetsuya Mukawa Subject: [PATCH v8 8/8] net/null: use generic SW stats Date: Tue, 21 May 2024 10:00:55 -0700 Message-ID: <20240521170453.119036-9-stephen@networkplumber.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240521170453.119036-1-stephen@networkplumber.org> References: <20240510050507.14381-1-stephen@networkplumber.org> <20240521170453.119036-1-stephen@networkplumber.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Use the new common code for statistics. This also fixes the bug that this driver was not accounting for bytes. Signed-off-by: Stephen Hemminger --- drivers/net/null/rte_eth_null.c | 83 +++++++++------------------------ 1 file changed, 21 insertions(+), 62 deletions(-) diff --git a/drivers/net/null/rte_eth_null.c b/drivers/net/null/rte_eth_null.c index f4ed3b8a7f..83add9c819 100644 --- a/drivers/net/null/rte_eth_null.c +++ b/drivers/net/null/rte_eth_null.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include #include @@ -37,8 +38,8 @@ struct null_queue { struct rte_mempool *mb_pool; struct rte_mbuf *dummy_packet; - RTE_ATOMIC(uint64_t) rx_pkts; - RTE_ATOMIC(uint64_t) tx_pkts; + struct rte_eth_counters tx_stats; + struct rte_eth_counters rx_stats; }; struct pmd_options { @@ -101,9 +102,7 @@ eth_null_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) bufs[i]->port = h->internals->port_id; } - /* NOTE: review for potential ordering optimization */ - rte_atomic_fetch_add_explicit(&h->rx_pkts, i, rte_memory_order_seq_cst); - + rte_eth_count_packets(&h->rx_stats, i, i * packet_size); return i; } @@ -129,8 +128,7 @@ eth_null_copy_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) bufs[i]->port = h->internals->port_id; } - /* NOTE: review for potential ordering optimization */ - rte_atomic_fetch_add_explicit(&h->rx_pkts, i, rte_memory_order_seq_cst); + rte_eth_count_packets(&h->rx_stats, i, i * packet_size); return i; } @@ -147,16 +145,17 @@ eth_null_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) { int i; struct null_queue *h = q; + uint32_t tx_bytes = 0; if ((q == NULL) || (bufs == NULL)) return 0; - for (i = 0; i < nb_bufs; i++) + for (i = 0; i < nb_bufs; i++) { + tx_bytes += rte_pktmbuf_pkt_len(bufs[i]); rte_pktmbuf_free(bufs[i]); + } - /* NOTE: review for potential ordering optimization */ - rte_atomic_fetch_add_explicit(&h->tx_pkts, i, rte_memory_order_seq_cst); - + rte_eth_count_packets(&h->tx_stats, i, tx_bytes); return i; } @@ -166,20 +165,20 @@ eth_null_copy_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) int i; struct null_queue *h = q; unsigned int packet_size; + uint32_t tx_bytes = 0; if ((q == NULL) || (bufs == NULL)) return 0; packet_size = h->internals->packet_size; for (i = 0; i < nb_bufs; i++) { + tx_bytes += rte_pktmbuf_pkt_len(bufs[i]); rte_memcpy(h->dummy_packet, rte_pktmbuf_mtod(bufs[i], void *), packet_size); rte_pktmbuf_free(bufs[i]); } - /* NOTE: review for potential ordering optimization */ - rte_atomic_fetch_add_explicit(&h->tx_pkts, i, rte_memory_order_seq_cst); - + rte_eth_count_packets(&h->tx_stats, i, tx_bytes); return i; } @@ -322,60 +321,20 @@ eth_dev_info(struct rte_eth_dev *dev, } static int -eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *igb_stats) +eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats) { - unsigned int i, num_stats; - unsigned long rx_total = 0, tx_total = 0; - const struct pmd_internals *internal; - - if ((dev == NULL) || (igb_stats == NULL)) - return -EINVAL; - - internal = dev->data->dev_private; - num_stats = RTE_MIN((unsigned int)RTE_ETHDEV_QUEUE_STAT_CNTRS, - RTE_MIN(dev->data->nb_rx_queues, - RTE_DIM(internal->rx_null_queues))); - for (i = 0; i < num_stats; i++) { - /* NOTE: review for atomic access */ - igb_stats->q_ipackets[i] = - internal->rx_null_queues[i].rx_pkts; - rx_total += igb_stats->q_ipackets[i]; - } - - num_stats = RTE_MIN((unsigned int)RTE_ETHDEV_QUEUE_STAT_CNTRS, - RTE_MIN(dev->data->nb_tx_queues, - RTE_DIM(internal->tx_null_queues))); - for (i = 0; i < num_stats; i++) { - /* NOTE: review for atomic access */ - igb_stats->q_opackets[i] = - internal->tx_null_queues[i].tx_pkts; - tx_total += igb_stats->q_opackets[i]; - } - - igb_stats->ipackets = rx_total; - igb_stats->opackets = tx_total; - - return 0; + return rte_eth_counters_stats_get(dev, + offsetof(struct null_queue, tx_stats), + offsetof(struct null_queue, rx_stats), + stats); } static int eth_stats_reset(struct rte_eth_dev *dev) { - unsigned int i; - struct pmd_internals *internal; - - if (dev == NULL) - return -EINVAL; - - internal = dev->data->dev_private; - for (i = 0; i < RTE_DIM(internal->rx_null_queues); i++) - /* NOTE: review for atomic access */ - internal->rx_null_queues[i].rx_pkts = 0; - for (i = 0; i < RTE_DIM(internal->tx_null_queues); i++) - /* NOTE: review for atomic access */ - internal->tx_null_queues[i].tx_pkts = 0; - - return 0; + return rte_eth_counters_reset(dev, + offsetof(struct null_queue, tx_stats), + offsetof(struct null_queue, rx_stats)); } static void -- 2.43.0