From: Stephen Hemminger <stephen@networkplumber.org>
To: "11" <caowenbo@mucse.com>
Cc: <thomas@monjalon.net>, <dev@dpdk.org>, <ferruh.yigit@amd.com>,
<andrew.rybchenko@oktetlabs.ru>, <yaojun@mucse.com>
Subject: Re: [PATCH v9 12/28] net/rnp: add support link update operations
Date: Wed, 12 Feb 2025 07:37:43 -0800 [thread overview]
Message-ID: <20250212073743.7fdd6d53@hermes.local> (raw)
In-Reply-To: <89E4C0CDD2F99463+001a01db7cfd$4210f7e0$c632e7a0$@mucse.com>
On Wed, 12 Feb 2025 11:21:49 +0800
"11" <caowenbo@mucse.com> wrote:
> Hi Stephen,
> For memcpy what ever base code or other code all used memcpy not rte_memcpy
> ?
> Even the memory is malloc from rte_malloc/zmalloc ?
>
> Regards Wenbo.
The documentation doesn't make it clear but rte_memcpy is the same as memcpy.
It only exists because for some cases (like older versions of Gcc and differences
in alignment assumptions) when running micro benchmarks rte_memcpy was faster.
All new code should only use memcpy() unless there is a benchmark test
that shows a noticable difference. The reason is that tools like Coverity, Gcc,
Clang, and PVS studio all treat memcpy specially and can do checks for
access outside of range.
next prev parent reply other threads:[~2025-02-12 15:37 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-11 8:49 [PATCH v9 00/28] [v9]drivers/net Add Support mucse N10 Pmd Driver Wenbo Cao
2025-02-11 8:49 ` [PATCH v9 01/28] net/rnp: add skeleton Wenbo Cao
2025-02-11 8:49 ` [PATCH v9 02/28] net/rnp: add ethdev probe and remove Wenbo Cao
2025-02-11 8:49 ` [PATCH v9 03/28] net/rnp: add log Wenbo Cao
2025-02-11 8:49 ` [PATCH v9 04/28] net/rnp: support mailbox basic operate Wenbo Cao
2025-02-11 15:24 ` Stephen Hemminger
2025-02-12 2:54 ` 11
2025-02-12 15:34 ` Stephen Hemminger
2025-02-11 15:31 ` Stephen Hemminger
2025-02-11 8:49 ` [PATCH v9 05/28] net/rnp: add device init and uninit Wenbo Cao
2025-02-11 8:49 ` [PATCH v9 06/28] net/rnp: add get device information operation Wenbo Cao
2025-02-11 8:49 ` [PATCH v9 07/28] net/rnp: add support MAC promisc mode Wenbo Cao
2025-02-11 8:49 ` [PATCH v9 08/28] net/rnp: add queue setup and release operations Wenbo Cao
2025-02-11 15:22 ` Stephen Hemminger
2025-02-11 16:02 ` Stephen Hemminger
2025-02-12 1:50 ` 11
2025-02-11 16:03 ` Stephen Hemminger
2025-02-11 8:49 ` [PATCH v9 09/28] net/rnp: add queue stop and start operations Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 10/28] net/rnp: add support device start stop operations Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 11/28] net/rnp: add RSS support operations Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 12/28] net/rnp: add support link update operations Wenbo Cao
2025-02-11 15:35 ` Stephen Hemminger
2025-02-12 3:21 ` 11
2025-02-12 15:37 ` Stephen Hemminger [this message]
2025-02-12 15:47 ` 11
2025-02-11 8:50 ` [PATCH v9 13/28] net/rnp: add support link setup operations Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 14/28] net/rnp: add Rx burst simple support Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 15/28] net/rnp: add Tx " Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 16/28] net/rnp: add MTU set operation Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 17/28] net/rnp: add Rx scatter segment version Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 18/28] net/rnp: add Tx multiple " Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 19/28] net/rnp: add support basic stats operation Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 20/28] net/rnp: add support xstats operation Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 21/28] net/rnp: add unicast MAC filter operation Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 22/28] net/rnp: add supported packet types Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 23/28] net/rnp: add support Rx checksum offload Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 24/28] net/rnp: add support Tx TSO offload Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 25/28] net/rnp: support VLAN offloads Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 26/28] net/rnp: add support VLAN filters operations Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 27/28] net/rnp: add queue info operation Wenbo Cao
2025-02-11 8:50 ` [PATCH v9 28/28] net/rnp: support Rx/Tx burst mode info Wenbo Cao
2025-02-11 14:56 ` [PATCH v9 00/28] [v9]drivers/net Add Support mucse N10 Pmd Driver Stephen Hemminger
2025-02-11 15:18 ` 11
2025-02-11 16:16 ` Stephen Hemminger
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