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From: Tyler Retzlaff <roretzla@linux.microsoft.com>
To: dev@dpdk.org
Cc: Ajit Khaparde <ajit.khaparde@broadcom.com>,
Andrew Boyer <andrew.boyer@amd.com>,
Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>,
Bruce Richardson <bruce.richardson@intel.com>,
Chenbo Xia <chenbox@nvidia.com>, Chengwen Feng <fengchengwen@huawei.com>,
Dariusz Sosnowski <dsosnowski@nvidia.com>,
David Christensen <drc@linux.vnet.ibm.com>,
Hyong Youb Kim <hyonkim@cisco.com>, Jerin Jacob <jerinj@marvell.com>,
Jie Hai <haijie1@huawei.com>, Jingjing Wu <jingjing.wu@intel.com>,
John Daley <johndale@cisco.com>, Kevin Laatz <kevin.laatz@intel.com>,
Kiran Kumar K <kirankumark@marvell.com>,
Konstantin Ananyev <konstantin.v.ananyev@yandex.ru>,
Maciej Czekaj <mczekaj@marvell.com>, Matan Azrad <matan@nvidia.com>,
Maxime Coquelin <maxime.coquelin@redhat.com>,
Nithin Dabilpuram <ndabilpuram@marvell.com>, Ori Kam <orika@nvidia.com>,
Ruifeng Wang <ruifeng.wang@arm.com>, Satha Rao <skoteshwar@marvell.com>,
Somnath Kotur <somnath.kotur@broadcom.com>,
Suanming Mou <suanmingm@nvidia.com>, Sunil Kumar Kori <skori@marvell.com>,
Viacheslav Ovsiienko <viacheslavo@nvidia.com>,
Yisen Zhuang <yisen.zhuang@huawei.com>,
Yuying Zhang <Yuying.Zhang@intel.com>, mb@smartsharesystems.com,
Tyler Retzlaff <roretzla@linux.microsoft.com>
Subject: [PATCH v11 1/4] net/i40e: use inline prefetch function
Date: Thu, 4 Apr 2024 10:51:52 -0700
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Don't directly access the cacheline1 field in rte_mbuf struct for
prefetch instead just use rte_mbuf_prefetch_part2() to prefetch.
Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
Reviewed-by: Morten Brørup <mb@smartsharesystems.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
---
drivers/net/i40e/i40e_rxtx_vec_avx512.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/i40e/i40e_rxtx_vec_avx512.c b/drivers/net/i40e/i40e_rxtx_vec_avx512.c
index f3050cd..0238b03 100644
--- a/drivers/net/i40e/i40e_rxtx_vec_avx512.c
+++ b/drivers/net/i40e/i40e_rxtx_vec_avx512.c
@@ -826,7 +826,7 @@
free[0] = m;
nb_free = 1;
for (i = 1; i < n; i++) {
- rte_prefetch0(&txep[i + 3].mbuf->cacheline1);
+ rte_mbuf_prefetch_part2(txep[i + 3].mbuf);
m = rte_pktmbuf_prefree_seg(txep[i].mbuf);
if (likely(m)) {
if (likely(m->pool == free[0]->pool)) {
--
1.8.3.1