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From: Tyler Retzlaff <roretzla@linux.microsoft.com>
To: dev@dpdk.org
Cc: Honnappa.Nagarahalli@arm.com, Ruifeng.Wang@arm.com,
	thomas@monjalon.net,
	Tyler Retzlaff <roretzla@linux.microsoft.com>
Subject: [PATCH v2 07/16] net/cxgbe: use previous value atomic fetch operations
Date: Wed, 15 Mar 2023 14:15:36 -0700	[thread overview]
Message-ID: <1678914945-10638-8-git-send-email-roretzla@linux.microsoft.com> (raw)
In-Reply-To: <1678914945-10638-1-git-send-email-roretzla@linux.microsoft.com>

Use __atomic_fetch_{add,and,or,sub,xor} instead of
__atomic_{add,and,or,sub,xor}_fetch adding the necessary code to
allow consumption of the resulting value.

Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
---
 drivers/net/cxgbe/clip_tbl.c | 2 +-
 drivers/net/cxgbe/mps_tcam.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/cxgbe/clip_tbl.c b/drivers/net/cxgbe/clip_tbl.c
index 072fc74..f64b922 100644
--- a/drivers/net/cxgbe/clip_tbl.c
+++ b/drivers/net/cxgbe/clip_tbl.c
@@ -55,7 +55,7 @@ void cxgbe_clip_release(struct rte_eth_dev *dev, struct clip_entry *ce)
 	int ret;
 
 	t4_os_lock(&ce->lock);
-	if (__atomic_sub_fetch(&ce->refcnt, 1, __ATOMIC_RELAXED) == 0) {
+	if (__atomic_fetch_sub(&ce->refcnt, 1, __ATOMIC_RELAXED) - 1 == 0) {
 		ret = clip6_release_mbox(dev, ce->addr);
 		if (ret)
 			dev_debug(adap, "CLIP FW DEL CMD failed: %d", ret);
diff --git a/drivers/net/cxgbe/mps_tcam.c b/drivers/net/cxgbe/mps_tcam.c
index abbf06e..c7cdf29 100644
--- a/drivers/net/cxgbe/mps_tcam.c
+++ b/drivers/net/cxgbe/mps_tcam.c
@@ -195,7 +195,7 @@ int cxgbe_mpstcam_remove(struct port_info *pi, u16 idx)
 					   entry->mask, idx, 1, pi->port_id,
 					   false);
 	else
-		ret = __atomic_sub_fetch(&entry->refcnt, 1, __ATOMIC_RELAXED);
+		ret = __atomic_fetch_sub(&entry->refcnt, 1, __ATOMIC_RELAXED) - 1;
 
 	if (ret == 0) {
 		reset_mpstcam_entry(entry);
-- 
1.8.3.1


  parent reply	other threads:[~2023-03-15 21:16 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-10 22:15 [PATCH 00/16] use __atomic operations returning new value Tyler Retzlaff
2023-03-10 22:15 ` [PATCH 01/16] app/test: use previous value atomic fetch operations Tyler Retzlaff
2023-03-10 22:15 ` [PATCH 02/16] common/cnxk: " Tyler Retzlaff
2023-03-10 22:15 ` [PATCH 03/16] common/mlx5: " Tyler Retzlaff
2023-03-10 22:15 ` [PATCH 04/16] drivers/event: " Tyler Retzlaff
2023-03-13  7:02   ` [EXT] " Pavan Nikhilesh Bhagavatula
2023-03-10 22:15 ` [PATCH 05/16] net/af_xdp: " Tyler Retzlaff
2023-03-10 22:15 ` [PATCH 06/16] net/cnxk: " Tyler Retzlaff
2023-03-13  6:45   ` [EXT] " Nithin Kumar Dabilpuram
2023-03-10 22:15 ` [PATCH 07/16] net/cxgbe: " Tyler Retzlaff
2023-03-10 22:15 ` [PATCH 08/16] net/iavf: " Tyler Retzlaff
2023-03-10 22:15 ` [PATCH 09/16] net/mlx5: " Tyler Retzlaff
2023-03-10 22:15 ` [PATCH 10/16] net/octeontx: " Tyler Retzlaff
2023-03-10 22:15 ` [PATCH 11/16] raw/ifpga: " Tyler Retzlaff
2023-03-10 22:15 ` [PATCH 12/16] bbdev: " Tyler Retzlaff
2023-03-10 22:15 ` [PATCH 13/16] eal: " Tyler Retzlaff
2023-03-10 22:15 ` [PATCH 14/16] ipsec: " Tyler Retzlaff
2023-03-10 22:15 ` [PATCH 15/16] mbuf: " Tyler Retzlaff
2023-03-10 22:15 ` [PATCH 16/16] rcu: " Tyler Retzlaff
2023-03-15 21:15 ` [PATCH v2 00/16] replace __atomic operations returning new value Tyler Retzlaff
2023-03-15 21:15   ` [PATCH v2 01/16] app/test: use previous value atomic fetch operations Tyler Retzlaff
2023-03-15 21:15   ` [PATCH v2 02/16] common/cnxk: " Tyler Retzlaff
2023-03-15 21:15   ` [PATCH v2 03/16] common/mlx5: " Tyler Retzlaff
2023-03-15 21:15   ` [PATCH v2 04/16] drivers/event: " Tyler Retzlaff
2023-03-15 21:15   ` [PATCH v2 05/16] net/af_xdp: " Tyler Retzlaff
2023-03-15 21:15   ` [PATCH v2 06/16] net/cnxk: " Tyler Retzlaff
2023-03-15 21:15   ` Tyler Retzlaff [this message]
2023-03-15 21:15   ` [PATCH v2 08/16] net/iavf: " Tyler Retzlaff
2023-03-15 21:15   ` [PATCH v2 09/16] net/mlx5: " Tyler Retzlaff
2023-03-15 21:15   ` [PATCH v2 10/16] net/octeontx: " Tyler Retzlaff
2023-03-15 21:15   ` [PATCH v2 11/16] raw/ifpga: " Tyler Retzlaff
2023-03-15 21:15   ` [PATCH v2 12/16] bbdev: " Tyler Retzlaff
2023-03-15 21:15   ` [PATCH v2 13/16] eal: " Tyler Retzlaff
2023-03-15 21:15   ` [PATCH v2 14/16] ipsec: " Tyler Retzlaff
2023-03-15 21:15   ` [PATCH v2 15/16] mbuf: " Tyler Retzlaff
2023-03-15 21:15   ` [PATCH v2 16/16] rcu: " Tyler Retzlaff
2023-03-16 10:03   ` [PATCH v2 00/16] replace __atomic operations returning new value Bruce Richardson
2023-03-16 15:25     ` Thomas Monjalon
2023-03-16 16:17       ` Tyler Retzlaff
2023-04-18 18:11         ` Tyler Retzlaff
2023-03-20 10:24   ` Ruifeng Wang
2023-03-20 19:00 ` [PATCH v3 " Tyler Retzlaff
2023-03-20 19:00   ` [PATCH v3 01/16] app/test: use previous value atomic fetch operations Tyler Retzlaff
2023-03-20 19:00   ` [PATCH v3 02/16] common/cnxk: " Tyler Retzlaff
2023-03-20 19:00   ` [PATCH v3 03/16] common/mlx5: " Tyler Retzlaff
2023-03-20 19:00   ` [PATCH v3 04/16] drivers/event: " Tyler Retzlaff
2023-03-20 19:00   ` [PATCH v3 05/16] net/af_xdp: " Tyler Retzlaff
2023-03-20 19:00   ` [PATCH v3 06/16] net/cnxk: " Tyler Retzlaff
2023-03-20 19:00   ` [PATCH v3 07/16] net/cxgbe: " Tyler Retzlaff
2023-03-20 19:00   ` [PATCH v3 08/16] net/iavf: " Tyler Retzlaff
2023-03-20 19:00   ` [PATCH v3 09/16] net/mlx5: " Tyler Retzlaff
2023-03-20 19:00   ` [PATCH v3 10/16] net/octeontx: " Tyler Retzlaff
2023-03-20 19:00   ` [PATCH v3 11/16] raw/ifpga: " Tyler Retzlaff
2023-03-20 19:00   ` [PATCH v3 12/16] bbdev: " Tyler Retzlaff
2023-03-20 19:00   ` [PATCH v3 13/16] eal: " Tyler Retzlaff
2023-03-20 19:00   ` [PATCH v3 14/16] ipsec: " Tyler Retzlaff
2023-03-20 19:00   ` [PATCH v3 15/16] mbuf: " Tyler Retzlaff
2023-03-20 19:00   ` [PATCH v3 16/16] rcu: " Tyler Retzlaff
2023-04-25  9:10   ` [PATCH v3 00/16] replace __atomic operations returning new value David Marchand

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