From: Michal Krawczyk <mk@semihalf.com>
To: Marcin Wojtas <mw@semihalf.com>,
Michal Krawczyk <mk@semihalf.com>,
Guy Tzalik <gtzalik@amazon.com>,
Evgeny Schemeilin <evgenys@amazon.com>
Cc: dev@dpdk.org, matua@amazon.com, Rafal Kozik <rk@semihalf.com>
Subject: [dpdk-dev] [PATCH v3 20/27] net/ena: add (un)likely statements
Date: Thu, 7 Jun 2018 11:43:15 +0200 [thread overview]
Message-ID: <20180607094322.14312-20-mk@semihalf.com> (raw)
In-Reply-To: <20180607094322.14312-1-mk@semihalf.com>
From: Rafal Kozik <rk@semihalf.com>
Add likely and unlikely statements to increase performance.
Signed-off-by: Rafal Kozik <rk@semihalf.com>
Acked-by: Michal Krawczyk <mk@semihalf.com>
---
drivers/net/ena/ena_ethdev.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index 5fbf0e5d5..1425a0496 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -936,7 +936,7 @@ ena_calc_queue_size(struct ena_com_dev *ena_dev,
if (!rte_is_power_of_2(queue_size))
queue_size = rte_align32pow2(queue_size >> 1);
- if (queue_size == 0) {
+ if (unlikely(queue_size == 0)) {
PMD_INIT_LOG(ERR, "Invalid queue size");
return -EFAULT;
}
@@ -1360,7 +1360,7 @@ static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count)
}
/* When we submitted free recources to device... */
- if (i > 0) {
+ if (likely(i > 0)) {
/* ...let HW know that it can fill buffers with data */
rte_wmb();
ena_com_write_sq_doorbell(rxq->ena_com_io_sq);
@@ -1466,7 +1466,7 @@ static void ena_interrupt_handler_rte(void *cb_arg)
struct ena_com_dev *ena_dev = &adapter->ena_dev;
ena_com_admin_q_comp_intr_handler(ena_dev);
- if (adapter->state != ENA_ADAPTER_STATE_CLOSED)
+ if (likely(adapter->state != ENA_ADAPTER_STATE_CLOSED))
ena_com_aenq_intr_handler(ena_dev, adapter);
}
@@ -1856,7 +1856,7 @@ static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
mbuf->data_off = RTE_PKTMBUF_HEADROOM;
mbuf->refcnt = 1;
mbuf->next = NULL;
- if (segments == 0) {
+ if (unlikely(segments == 0)) {
mbuf->nb_segs = ena_rx_ctx.descs;
mbuf->port = rx_ring->port_id;
mbuf->pkt_len = 0;
--
2.14.1
next prev parent reply other threads:[~2018-06-07 9:44 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-07 9:42 [dpdk-dev] [PATCH v3 01/27] net/ena: change version number to 1.1.0 Michal Krawczyk
2018-06-07 9:42 ` [dpdk-dev] [PATCH v3 02/27] net/ena: update ena_com to the newer version Michal Krawczyk
2018-06-08 19:43 ` Ferruh Yigit
2018-06-11 9:54 ` [dpdk-dev] [PATCH v4 2/2] " Michal Krawczyk
2018-06-11 10:42 ` Ferruh Yigit
2018-06-11 11:01 ` [dpdk-dev] [PATCH v5 02/27] " Michal Krawczyk
2018-06-07 9:42 ` [dpdk-dev] [PATCH v3 03/27] net/ena: remove support of legacy LLQ Michal Krawczyk
2018-06-07 9:42 ` [dpdk-dev] [PATCH v3 04/27] net/ena: add interrupt handler for admin queue Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 05/27] net/ena: add stop and uninit routines Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 06/27] net/ena: add LSC intr support and AENQ handling Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 07/27] net/ena: handle ENA notification Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 08/27] net/ena: restart only initialized queues instead of all Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 09/27] net/ena: add reset routine Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 10/27] net/ena: add lrte_timer dependency for linking Michal Krawczyk
2018-06-08 19:17 ` Ferruh Yigit
2018-06-11 6:24 ` Michał Krawczyk
2018-06-17 22:37 ` Thomas Monjalon
2018-06-18 6:04 ` Michał Krawczyk
2018-06-18 8:30 ` Thomas Monjalon
2018-06-18 8:32 ` Michał Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 11/27] net/ena: add watchdog and keep alive AENQ handler Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 12/27] net/ena: add checking for admin queue state Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 13/27] net/ena: make watchdog configurable Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 14/27] net/ena: add RX out of order completion Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 15/27] net/ena: linearize Tx mbuf Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 16/27] net/ena: add info about max number of Tx/Rx descriptors Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 17/27] net/ena: unimplemented handler error Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 18/27] net/ena: rework configuration of IO queue numbers Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 19/27] net/ena: validate Tx req id Michal Krawczyk
2018-06-07 9:43 ` Michal Krawczyk [this message]
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 21/27] net/ena: adjust error checking and cleaning Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 22/27] net/ena: update numa node Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 23/27] net/ena: check pointer before memset Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 24/27] net/ena: change memory type Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 25/27] net/ena: fix GENMASK_ULL macro Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 26/27] net/ena: store handle after memory allocation Michal Krawczyk
2018-06-07 9:43 ` [dpdk-dev] [PATCH v3 27/27] net/ena: set link speed as none Michal Krawczyk
2018-06-08 19:37 ` Ferruh Yigit
2018-06-10 1:35 ` Chas Williams
2018-06-11 8:01 ` Michał Krawczyk
2018-06-11 16:15 ` Chas Williams
2018-06-19 6:32 ` Michał Krawczyk
2018-06-08 19:45 ` [dpdk-dev] [PATCH v3 01/27] net/ena: change version number to 1.1.0 Ferruh Yigit
2018-06-11 8:45 ` Michał Krawczyk
2018-06-11 9:26 ` Ferruh Yigit
2018-06-11 9:33 ` Michał Krawczyk
2018-06-11 9:50 ` Ferruh Yigit
2018-06-11 9:52 ` Michał Krawczyk
2018-06-11 12:34 ` Ferruh Yigit
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