From: Tyler Retzlaff <roretzla@linux.microsoft.com>
To: dev@dpdk.org
Cc: Honnappa.Nagarahalli@arm.com, Ruifeng.Wang@arm.com,
thomas@monjalon.net, stephen@networkplumber.org,
mb@smartsharesystems.com,
Tyler Retzlaff <roretzla@linux.microsoft.com>
Subject: [PATCH v3 6/7] net/null: replace rte atomics with GCC builtin atomics
Date: Thu, 23 Mar 2023 15:53:55 -0700 [thread overview]
Message-ID: <1679612036-30773-7-git-send-email-roretzla@linux.microsoft.com> (raw)
In-Reply-To: <1679612036-30773-1-git-send-email-roretzla@linux.microsoft.com>
Replace the use of rte_atomic.h types and functions, instead use GCC
supplied C++11 memory model builtins.
Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
---
drivers/net/null/rte_eth_null.c | 28 ++++++++++++++++++----------
1 file changed, 18 insertions(+), 10 deletions(-)
diff --git a/drivers/net/null/rte_eth_null.c b/drivers/net/null/rte_eth_null.c
index 47d9554..31081af 100644
--- a/drivers/net/null/rte_eth_null.c
+++ b/drivers/net/null/rte_eth_null.c
@@ -37,8 +37,8 @@ struct null_queue {
struct rte_mempool *mb_pool;
struct rte_mbuf *dummy_packet;
- rte_atomic64_t rx_pkts;
- rte_atomic64_t tx_pkts;
+ uint64_t rx_pkts;
+ uint64_t tx_pkts;
};
struct pmd_options {
@@ -101,7 +101,8 @@ struct pmd_internals {
bufs[i]->port = h->internals->port_id;
}
- rte_atomic64_add(&(h->rx_pkts), i);
+ /* NOTE: review for potential ordering optimization */
+ __atomic_fetch_add(&h->rx_pkts, i, __ATOMIC_SEQ_CST);
return i;
}
@@ -128,7 +129,8 @@ struct pmd_internals {
bufs[i]->port = h->internals->port_id;
}
- rte_atomic64_add(&(h->rx_pkts), i);
+ /* NOTE: review for potential ordering optimization */
+ __atomic_fetch_add(&h->rx_pkts, i, __ATOMIC_SEQ_CST);
return i;
}
@@ -152,7 +154,8 @@ struct pmd_internals {
for (i = 0; i < nb_bufs; i++)
rte_pktmbuf_free(bufs[i]);
- rte_atomic64_add(&(h->tx_pkts), i);
+ /* NOTE: review for potential ordering optimization */
+ __atomic_fetch_add(&h->tx_pkts, i, __ATOMIC_SEQ_CST);
return i;
}
@@ -174,7 +177,8 @@ struct pmd_internals {
rte_pktmbuf_free(bufs[i]);
}
- rte_atomic64_add(&(h->tx_pkts), i);
+ /* NOTE: review for potential ordering optimization */
+ __atomic_fetch_add(&h->tx_pkts, i, __ATOMIC_SEQ_CST);
return i;
}
@@ -316,8 +320,9 @@ struct pmd_internals {
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.cnt;
+ internal->rx_null_queues[i].rx_pkts;
rx_total += igb_stats->q_ipackets[i];
}
@@ -325,8 +330,9 @@ struct pmd_internals {
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.cnt;
+ internal->tx_null_queues[i].tx_pkts;
tx_total += igb_stats->q_opackets[i];
}
@@ -347,9 +353,11 @@ struct pmd_internals {
internal = dev->data->dev_private;
for (i = 0; i < RTE_DIM(internal->rx_null_queues); i++)
- internal->rx_null_queues[i].rx_pkts.cnt = 0;
+ /* NOTE: review for atomic access */
+ internal->rx_null_queues[i].rx_pkts = 0;
for (i = 0; i < RTE_DIM(internal->tx_null_queues); i++)
- internal->tx_null_queues[i].tx_pkts.cnt = 0;
+ /* NOTE: review for atomic access */
+ internal->tx_null_queues[i].tx_pkts = 0;
return 0;
}
--
1.8.3.1
next prev parent reply other threads:[~2023-03-23 22:54 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-17 20:19 [PATCH 0/7] " Tyler Retzlaff
2023-03-17 20:19 ` [PATCH 1/7] ring: " Tyler Retzlaff
2023-03-17 20:36 ` Tyler Retzlaff
2023-03-17 20:19 ` [PATCH 2/7] stack: " Tyler Retzlaff
2023-03-17 20:19 ` [PATCH 3/7] dma/idxd: " Tyler Retzlaff
2023-03-17 20:19 ` [PATCH 4/7] net/ice: " Tyler Retzlaff
2023-03-17 20:41 ` Tyler Retzlaff
2023-03-17 20:19 ` [PATCH 5/7] net/ixgbe: " Tyler Retzlaff
2023-03-17 20:19 ` [PATCH 6/7] net/null: " Tyler Retzlaff
2023-03-17 20:44 ` Tyler Retzlaff
2023-03-17 20:19 ` [PATCH 7/7] net/ring: " Tyler Retzlaff
2023-03-17 21:42 ` [PATCH 0/7] " Stephen Hemminger
2023-03-17 21:49 ` Tyler Retzlaff
2023-03-22 11:28 ` Morten Brørup
2023-03-22 14:21 ` Tyler Retzlaff
2023-03-22 14:58 ` Morten Brørup
2023-03-22 15:29 ` Tyler Retzlaff
2023-03-22 16:13 ` Morten Brørup
2023-03-22 16:40 ` Honnappa Nagarahalli
2023-03-22 17:07 ` Morten Brørup
2023-03-22 17:38 ` Honnappa Nagarahalli
2023-03-22 18:06 ` Tyler Retzlaff
2023-05-02 3:37 ` Tyler Retzlaff
2023-05-02 4:31 ` Honnappa Nagarahalli
2023-03-23 22:34 ` [PATCH v2 " Tyler Retzlaff
2023-03-23 22:34 ` [PATCH v2 1/7] ring: " Tyler Retzlaff
2023-03-23 22:34 ` [PATCH v2 2/7] stack: " Tyler Retzlaff
2023-03-23 22:34 ` [PATCH v2 3/7] dma/idxd: " Tyler Retzlaff
2023-03-23 22:34 ` [PATCH v2 4/7] net/ice: " Tyler Retzlaff
2023-03-23 22:34 ` [PATCH v2 5/7] net/ixgbe: " Tyler Retzlaff
2023-03-23 22:34 ` [PATCH v2 6/7] net/null: " Tyler Retzlaff
2023-03-23 22:34 ` [PATCH v2 7/7] net/ring: " Tyler Retzlaff
2023-03-24 7:07 ` [PATCH v2 0/7] " Morten Brørup
2023-03-23 22:53 ` [PATCH v3 " Tyler Retzlaff
2023-03-23 22:53 ` [PATCH v3 1/7] ring: " Tyler Retzlaff
2023-03-23 22:53 ` [PATCH v3 2/7] stack: " Tyler Retzlaff
2023-05-24 20:08 ` David Marchand
2023-03-23 22:53 ` [PATCH v3 3/7] dma/idxd: " Tyler Retzlaff
2023-05-24 20:09 ` David Marchand
2023-05-25 8:41 ` Bruce Richardson
2023-05-25 13:59 ` Morten Brørup
2023-05-25 12:57 ` Kevin Laatz
2023-03-23 22:53 ` [PATCH v3 4/7] net/ice: " Tyler Retzlaff
2023-05-24 20:10 ` David Marchand
2023-03-23 22:53 ` [PATCH v3 5/7] net/ixgbe: " Tyler Retzlaff
2023-05-24 20:11 ` David Marchand
2023-03-23 22:53 ` Tyler Retzlaff [this message]
2023-05-24 20:13 ` [PATCH v3 6/7] net/null: " David Marchand
2023-03-23 22:53 ` [PATCH v3 7/7] net/ring: " Tyler Retzlaff
2023-05-24 20:12 ` David Marchand
2023-05-25 8:44 ` Bruce Richardson
2023-03-24 7:09 ` [PATCH v3 0/7] " Morten Brørup
2023-03-24 19:22 ` Tyler Retzlaff
2023-05-24 12:40 ` David Marchand
2023-05-24 15:47 ` Tyler Retzlaff
2023-05-24 20:06 ` David Marchand
2023-05-24 22:50 ` Tyler Retzlaff
2023-05-24 22:56 ` Honnappa Nagarahalli
2023-05-25 0:02 ` Tyler Retzlaff
2023-05-25 7:50 ` Morten Brørup
2023-06-02 19:45 ` [PATCH v4 0/6] " Tyler Retzlaff
2023-06-02 19:45 ` [PATCH v4 1/6] stack: " Tyler Retzlaff
2023-06-02 19:45 ` [PATCH v4 2/6] dma/idxd: " Tyler Retzlaff
2023-06-02 19:45 ` [PATCH v4 3/6] net/ice: " Tyler Retzlaff
2023-06-02 19:45 ` [PATCH v4 4/6] net/ixgbe: " Tyler Retzlaff
2023-06-02 19:45 ` [PATCH v4 5/6] net/null: " Tyler Retzlaff
2023-06-02 19:45 ` [PATCH v4 6/6] net/ring: " Tyler Retzlaff
2023-06-05 8:27 ` Olivier Matz
2023-06-06 21:45 ` [PATCH v5 0/6] " Tyler Retzlaff
2023-06-06 21:45 ` [PATCH v5 1/6] stack: " Tyler Retzlaff
2023-06-06 21:45 ` [PATCH v5 2/6] dma/idxd: " Tyler Retzlaff
2023-06-06 21:45 ` [PATCH v5 3/6] net/ice: " Tyler Retzlaff
2023-06-06 21:45 ` [PATCH v5 4/6] net/ixgbe: " Tyler Retzlaff
2023-06-06 21:45 ` [PATCH v5 5/6] net/null: " Tyler Retzlaff
2023-06-06 21:45 ` [PATCH v5 6/6] net/ring: " Tyler Retzlaff
2023-06-09 15:01 ` [PATCH v5 0/6] " David Marchand
2023-06-09 15:13 ` Tyler Retzlaff
2023-06-22 19:59 ` Patrick Robb
2023-06-23 8:53 ` David Marchand
2023-06-23 21:37 ` Tyler Retzlaff
2023-06-28 14:01 ` Patrick Robb
2023-06-28 14:49 ` David Marchand
2023-06-23 21:35 ` Tyler Retzlaff
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