From: Tyler Retzlaff <roretzla@linux.microsoft.com>
To: David Marchand <david.marchand@redhat.com>
Cc: dev@dpdk.org, 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, Thomas Monjalon <thomas@monjalon.net>
Subject: Re: [PATCH v6 20/23] mbuf: remove and stop using rte marker fields
Date: Wed, 28 Feb 2024 09:20:31 -0800 [thread overview]
Message-ID: <20240228172031.GB27142@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net> (raw)
In-Reply-To: <CAJFAV8xF+Bt0DReeX69CJcg6WMxYvcU+SVJskFnBzdAGn9ckYw@mail.gmail.com>
On Wed, Feb 28, 2024 at 03:18:40PM +0100, David Marchand wrote:
> On Tue, Feb 27, 2024 at 6:44 AM Tyler Retzlaff
> <roretzla@linux.microsoft.com> wrote:
> >
> > RTE_MARKER typedefs are a GCC extension unsupported by MSVC. Remove
> > RTE_MARKER fields from rte_mbuf struct.
> >
> > Maintain alignment of fields after removed cacheline1 marker by placing
> > C11 alignas(RTE_CACHE_LINE_MIN_SIZE).
> >
> > Update implementation of rte_mbuf_prefetch_part1() and
> > rte_mbuf_prefetch_part2() inline functions calculate pointer for
> > prefetch of cachline0 and cachline1 without using removed markers.
> >
> > Update static_assert of rte_mbuf struct fields to reference data_off and
> > packet_type fields that occupy the original offsets of the marker
> > fields.
> >
> > Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
> > ---
> > doc/guides/rel_notes/release_24_03.rst | 9 ++++++++
> > lib/mbuf/rte_mbuf.h | 4 ++--
> > lib/mbuf/rte_mbuf_core.h | 39 +++++++++++++---------------------
> > 3 files changed, 26 insertions(+), 26 deletions(-)
> >
> > diff --git a/doc/guides/rel_notes/release_24_03.rst b/doc/guides/rel_notes/release_24_03.rst
> > index 879bb49..67750f2 100644
> > --- a/doc/guides/rel_notes/release_24_03.rst
> > +++ b/doc/guides/rel_notes/release_24_03.rst
> > @@ -156,6 +156,15 @@ Removed Items
> > The application reserved statically defined logtypes ``RTE_LOGTYPE_USER1..RTE_LOGTYPE_USER8``
> > are still defined.
> >
> > +* mbuf: ``RTE_MARKER`` fields ``cacheline0`` ``cacheline1``
> > + ``rx_descriptor_fields1`` and ``RTE_MARKER64`` field ``rearm_data``
> > + have been removed from ``struct rte_mbuf``.
> > + Prefetch of ``cacheline0`` and ``cacheline1`` may be achieved through
> > + ``rte_mbuf_prefetch_part1()`` and ``rte_mbuf_prefetch_part2()`` inline
> > + functions respectively.
> > + Access to ``rearm_data`` and ``rx_descriptor_fields1`` should be
> > + through new inline functions ``rte_mbuf_rearm_data()`` and
> > + ``rte_mbuf_rx_descriptor_fields1()`` respectively.
> >
> > API Changes
> > -----------
> > diff --git a/lib/mbuf/rte_mbuf.h b/lib/mbuf/rte_mbuf.h
> > index aa7495b..61cda20 100644
> > --- a/lib/mbuf/rte_mbuf.h
> > +++ b/lib/mbuf/rte_mbuf.h
> > @@ -108,7 +108,7 @@
> > static inline void
> > rte_mbuf_prefetch_part1(struct rte_mbuf *m)
> > {
> > - rte_prefetch0(&m->cacheline0);
> > + rte_prefetch0(m);
> > }
> >
> > /**
> > @@ -126,7 +126,7 @@
> > rte_mbuf_prefetch_part2(struct rte_mbuf *m)
> > {
> > #if RTE_CACHE_LINE_SIZE == 64
> > - rte_prefetch0(&m->cacheline1);
> > + rte_prefetch0(RTE_PTR_ADD(m, RTE_CACHE_LINE_MIN_SIZE));
> > #else
> > RTE_SET_USED(m);
> > #endif
> > diff --git a/lib/mbuf/rte_mbuf_core.h b/lib/mbuf/rte_mbuf_core.h
> > index 36551c2..4e06f15 100644
> > --- a/lib/mbuf/rte_mbuf_core.h
> > +++ b/lib/mbuf/rte_mbuf_core.h
> > @@ -18,6 +18,7 @@
> >
> > #include <assert.h>
> > #include <stddef.h>
> > +#include <stdalign.h>
> > #include <stdint.h>
> >
> > #include <rte_common.h>
> > @@ -467,8 +468,6 @@ enum {
> > * The generic rte_mbuf, containing a packet mbuf.
> > */
> > struct rte_mbuf {
> > - RTE_MARKER cacheline0;
> > -
> > void *buf_addr; /**< Virtual address of segment buffer. */
> > #if RTE_IOVA_IN_MBUF
> > /**
> > @@ -495,7 +494,6 @@ struct rte_mbuf {
> > * To obtain a pointer to rearm_data use the rte_mbuf_rearm_data()
> > * accessor instead of directly referencing through the data_off field.
> > */
> > - RTE_MARKER64 rearm_data;
> > uint16_t data_off;
>
> One subtile change of removing the marker is that fields may not be
> aligned as before.
>
> #if RTE_IOVA_IN_MBUF
> /**
> * Physical address of segment buffer.
> * This field is undefined if the build is configured to use only
> * virtual address as IOVA (i.e. RTE_IOVA_IN_MBUF is 0).
> * Force alignment to 8-bytes, so as to ensure we have the exact
> * same mbuf cacheline0 layout for 32-bit and 64-bit. This makes
> * working on vector drivers easier.
> */
> rte_iova_t buf_iova __rte_aligned(sizeof(rte_iova_t));
> #else
> /**
> * Next segment of scattered packet.
> * This field is valid when physical address field is undefined.
> * Otherwise next pointer in the second cache line will be used.
> */
> struct rte_mbuf *next;
> #endif
>
> When building ! RTE_IOVA_IN_MBUF on a 32 bits arch, the next pointer
> is not force aligned to 64bits.
> Which has a cascade effect on data_off alignement.
>
> In file included from ../lib/mbuf/rte_mbuf_core.h:19,
> from ../lib/mbuf/rte_mbuf.h:42,
> from ../lib/mbuf/rte_mbuf_dyn.c:18:
> ../lib/mbuf/rte_mbuf_core.h:676:1: error: static assertion failed: "data_off"
> 676 | static_assert(!(offsetof(struct rte_mbuf, data_off) !=
> | ^~~~~~~~~~~~~
>
it is the assert that is wrong here not the offset/alignment of the fields,
i failed to notice when i moved the assert from drivers to rte_mbuf_core.h
that it was only being evaluated for drivers that *require*
enable_iova_as_pa=true.
you can easily test by adding just this assert alone and building with
enable_iova_as_pa=false for -m32 you'll see the assert trigger.
sorry i should have been more careful about which asserts i consolidated
here. i can wrap this one up in conditional compile to only fire when
RTE_IOVA_IN_MBUF=1.
> I hope reviewers pay attention to the alignment changes when removing
> those markers.
> This is not trivial to catch in the CI.
>
>
> --
> David Marchand
next prev parent reply other threads:[~2024-02-28 17:20 UTC|newest]
Thread overview: 177+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-30 23:26 [PATCH] replace GCC marker extension with C11 anonymous unions Tyler Retzlaff
2024-01-30 23:26 ` [PATCH] mbuf: " Tyler Retzlaff
2024-01-31 9:18 ` Morten Brørup
2024-01-31 21:09 ` Tyler Retzlaff
2024-01-31 22:39 ` Morten Brørup
2024-01-31 13:49 ` Bruce Richardson
2024-01-31 20:45 ` Tyler Retzlaff
2024-01-31 22:55 ` Morten Brørup
2024-02-13 6:45 ` [PATCH v2] RFC: " Tyler Retzlaff
2024-02-13 6:45 ` [PATCH v2] mbuf: " Tyler Retzlaff
2024-02-13 16:58 ` Morten Brørup
2024-02-13 18:48 ` Tyler Retzlaff
2024-02-13 19:27 ` Morten Brørup
2024-02-13 20:00 ` Tyler Retzlaff
2024-02-13 8:57 ` [PATCH v2] RFC: " Bruce Richardson
2024-02-13 17:09 ` Morten Brørup
2024-02-13 23:33 ` [PATCH v3] RFC deprecate RTE_MARKER in struct rte_mbuf Tyler Retzlaff
2024-02-13 23:33 ` [PATCH v3] mbuf: deprecate GCC marker in rte mbuf struct Tyler Retzlaff
2024-02-14 10:46 ` Morten Brørup
2024-02-14 20:16 ` Tyler Retzlaff
2024-02-14 10:49 ` [PATCH v3] RFC deprecate RTE_MARKER in struct rte_mbuf Morten Brørup
2024-02-26 1:18 ` Stephen Hemminger
2024-02-15 6:21 ` [PATCH v4 00/18] stop using zero sized marker fields Tyler Retzlaff
2024-02-15 6:21 ` [PATCH v4 01/18] mbuf: deprecate GCC marker in rte mbuf struct Tyler Retzlaff
2024-02-18 2:28 ` fengchengwen
2024-02-18 12:39 ` Thomas Monjalon
2024-02-18 13:07 ` Morten Brørup
2024-02-18 15:22 ` Thomas Monjalon
2024-02-18 16:20 ` Morten Brørup
2024-02-20 17:24 ` Tyler Retzlaff
2024-02-20 17:20 ` Tyler Retzlaff
2024-02-20 17:53 ` Thomas Monjalon
2024-02-20 19:16 ` Thomas Monjalon
2024-02-20 19:37 ` Tyler Retzlaff
2024-02-15 6:21 ` [PATCH v4 02/18] mbuf: stop using zero sized marker fields Tyler Retzlaff
2024-02-18 2:38 ` fengchengwen
2024-02-15 6:21 ` [PATCH v4 03/18] net/i40e: " Tyler Retzlaff
2024-02-15 6:21 ` [PATCH v4 04/18] net/iavf: " Tyler Retzlaff
2024-02-15 6:21 ` [PATCH v4 05/18] net/ice: " Tyler Retzlaff
2024-02-15 6:21 ` [PATCH v4 06/18] net/ixgbe: " Tyler Retzlaff
2024-02-15 6:21 ` [PATCH v4 07/18] net/mlx5: " Tyler Retzlaff
2024-02-15 6:21 ` [PATCH v4 08/18] net/sfc: " Tyler Retzlaff
2024-02-15 6:21 ` [PATCH v4 09/18] net/bnxt: " Tyler Retzlaff
2024-02-15 6:21 ` [PATCH v4 10/18] net/enic: " Tyler Retzlaff
2024-02-15 6:21 ` [PATCH v4 11/18] net/fm10k: " Tyler Retzlaff
2024-02-15 6:21 ` [PATCH v4 12/18] net/hns3: " Tyler Retzlaff
2024-02-18 3:00 ` fengchengwen
2024-02-15 6:21 ` [PATCH v4 13/18] net/ionic: " Tyler Retzlaff
2024-02-15 6:21 ` [PATCH v4 14/18] net/thunderx: " Tyler Retzlaff
2024-02-15 6:21 ` [PATCH v4 15/18] net/virtio: " Tyler Retzlaff
2024-02-15 6:21 ` [PATCH v4 16/18] net/cnxk: " Tyler Retzlaff
2024-02-15 6:21 ` [PATCH v4 17/18] common/idpf: " Tyler Retzlaff
2024-02-15 6:21 ` [PATCH v4 18/18] examples/dma: " Tyler Retzlaff
2024-02-15 9:37 ` [PATCH v4 00/18] " Morten Brørup
2024-02-24 8:21 ` [PATCH v5 00/22] stop using RTE_MARKER extensions Tyler Retzlaff
2024-02-24 8:21 ` [PATCH v5 01/22] eal: provide macro to expand marker extensions Tyler Retzlaff
2024-02-24 10:51 ` Thomas Monjalon
2024-02-24 11:18 ` Thomas Monjalon
2024-02-24 8:21 ` [PATCH v5 02/22] mbuf: expand rte markers empty when building with MSVC Tyler Retzlaff
2024-02-24 8:21 ` [PATCH v5 03/22] security: " Tyler Retzlaff
2024-02-24 8:21 ` [PATCH v5 04/22] cryptodev: " Tyler Retzlaff
2024-02-24 8:21 ` [PATCH v5 05/22] mbuf: stop using mbuf cacheline marker fields Tyler Retzlaff
2024-02-24 10:58 ` Thomas Monjalon
2024-02-26 18:20 ` Stephen Hemminger
2024-02-24 8:21 ` [PATCH v5 06/22] mbuf: add mbuf descriptor accessors Tyler Retzlaff
2024-02-24 11:01 ` Thomas Monjalon
2024-02-24 8:21 ` [PATCH v5 07/22] common/idpf: use " Tyler Retzlaff
2024-02-24 8:21 ` [PATCH v5 08/22] net/bnxt: " Tyler Retzlaff
2024-02-24 8:21 ` [PATCH v5 09/22] net/cnxk: " Tyler Retzlaff
2024-02-24 8:21 ` [PATCH v5 10/22] net/enic: " Tyler Retzlaff
2024-02-24 8:21 ` [PATCH v5 11/22] net/fm10k: " Tyler Retzlaff
2024-02-24 8:21 ` [PATCH v5 12/22] net/hns3: " Tyler Retzlaff
2024-02-24 8:21 ` [PATCH v5 13/22] net/i40e: " Tyler Retzlaff
2024-02-24 8:21 ` [PATCH v5 14/22] net/iavf: " Tyler Retzlaff
2024-02-24 8:22 ` [PATCH v5 15/22] net/ice: " Tyler Retzlaff
2024-02-24 8:22 ` [PATCH v5 16/22] net/ionic: " Tyler Retzlaff
2024-02-24 8:22 ` [PATCH v5 17/22] net/ixgbe: " Tyler Retzlaff
2024-02-24 8:22 ` [PATCH v5 18/22] net/mlx5: " Tyler Retzlaff
2024-02-24 8:22 ` [PATCH v5 19/22] net/octeon_ep: " Tyler Retzlaff
2024-02-24 8:22 ` [PATCH v5 20/22] net/sfc: " Tyler Retzlaff
2024-02-24 8:22 ` [PATCH v5 21/22] net/thunderx: " Tyler Retzlaff
2024-02-24 8:22 ` [PATCH v5 22/22] net/virtio: " Tyler Retzlaff
2024-02-24 10:42 ` [PATCH v5 00/22] stop using RTE_MARKER extensions Morten Brørup
2024-02-24 11:13 ` Thomas Monjalon
2024-02-24 11:23 ` Morten Brørup
2024-02-27 5:41 ` [PATCH v6 00/23] stop and remove RTE_MARKER typedefs Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 01/23] mbuf: add accessors for rearm and Rx descriptor fields Tyler Retzlaff
2024-02-27 9:10 ` Morten Brørup
2024-02-27 17:17 ` Tyler Retzlaff
2024-02-28 8:28 ` Morten Brørup
2024-02-28 16:20 ` Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 02/23] mbuf: consolidate driver asserts for mbuf struct Tyler Retzlaff
2024-02-27 10:02 ` Konstantin Ananyev
2024-03-14 16:51 ` Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 03/23] common/idpf: use mbuf descriptor accessors Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 04/23] net/bnxt: " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 05/23] net/cnxk: " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 06/23] net/enic: " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 07/23] net/fm10k: " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 08/23] net/hns3: " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 09/23] net/i40e: " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 10/23] net/iavf: " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 11/23] net/ice: " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 12/23] net/ionic: " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 13/23] net/ixgbe: " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 14/23] net/mlx5: " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 15/23] net/octeon_ep: " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 16/23] net/sfc: " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 17/23] net/thunderx: " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 18/23] net/virtio: " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 19/23] examples/dma: use mbuf descriptor accessor Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 20/23] mbuf: remove and stop using rte marker fields Tyler Retzlaff
2024-02-27 9:15 ` Morten Brørup
2024-02-27 10:03 ` Konstantin Ananyev
2024-02-27 15:18 ` David Marchand
2024-02-27 16:04 ` Morten Brørup
2024-02-27 17:23 ` Tyler Retzlaff
2024-02-28 10:42 ` David Marchand
2024-02-28 14:03 ` Dodji Seketeli
2024-02-28 14:43 ` David Marchand
2024-02-29 14:50 ` Dodji Seketeli
2024-02-28 14:18 ` David Marchand
2024-02-28 15:01 ` Morten Brørup
2024-02-28 15:33 ` David Marchand
2024-02-28 17:20 ` Tyler Retzlaff [this message]
2024-02-27 5:41 ` [PATCH v6 21/23] security: remove " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 22/23] cryptodev: " Tyler Retzlaff
2024-02-27 5:41 ` [PATCH v6 23/23] devtools: forbid new use of rte marker typedefs Tyler Retzlaff
2024-03-20 22:01 ` [PATCH v7 0/4] remove use of RTE_MARKER fields in libraries Tyler Retzlaff
2024-03-20 22:01 ` [PATCH v7 1/4] net/i40e: use inline prefetch function Tyler Retzlaff
2024-03-26 10:16 ` Morten Brørup
2024-03-27 18:14 ` Tyler Retzlaff
2024-03-27 19:45 ` Morten Brørup
2024-03-20 22:01 ` [PATCH v7 2/4] mbuf: remove rte marker fields Tyler Retzlaff
2024-03-21 10:32 ` Bruce Richardson
2024-03-21 15:31 ` Tyler Retzlaff
2024-03-21 16:19 ` Morten Brørup
2024-03-26 11:12 ` Morten Brørup
2024-03-20 22:01 ` [PATCH v7 3/4] security: " Tyler Retzlaff
2024-03-26 10:28 ` Morten Brørup
2024-03-27 19:59 ` Tyler Retzlaff
2024-03-20 22:01 ` [PATCH v7 4/4] cryptodev: " Tyler Retzlaff
2024-03-26 10:31 ` Morten Brørup
2024-03-27 19:56 ` [PATCH v8 0/4] remove use of RTE_MARKER fields in libraries Tyler Retzlaff
2024-03-27 19:56 ` [PATCH v8 1/4] net/i40e: use inline prefetch function Tyler Retzlaff
2024-03-27 19:56 ` [PATCH v8 2/4] mbuf: remove rte marker fields Tyler Retzlaff
2024-03-27 19:56 ` [PATCH v8 3/4] security: " Tyler Retzlaff
2024-03-27 19:56 ` [PATCH v8 4/4] cryptodev: " Tyler Retzlaff
2024-04-02 20:08 ` [PATCH v9 0/4] remove use of RTE_MARKER fields in libraries Tyler Retzlaff
2024-04-02 20:08 ` [PATCH v9 1/4] net/i40e: use inline prefetch function Tyler Retzlaff
2024-04-02 20:08 ` [PATCH v9 2/4] mbuf: remove rte marker fields Tyler Retzlaff
2024-04-02 20:45 ` Stephen Hemminger
2024-04-02 20:51 ` Tyler Retzlaff
2024-04-02 20:08 ` [PATCH v9 3/4] security: " Tyler Retzlaff
2024-04-02 20:08 ` [PATCH v9 4/4] cryptodev: " Tyler Retzlaff
2024-04-03 17:53 ` [PATCH v10 0/4] remove use of RTE_MARKER fields in libraries Tyler Retzlaff
2024-04-03 17:53 ` [PATCH v10 1/4] net/i40e: use inline prefetch function Tyler Retzlaff
2024-04-03 21:49 ` Stephen Hemminger
2024-04-03 17:53 ` [PATCH v10 2/4] mbuf: remove rte marker fields Tyler Retzlaff
2024-04-03 19:32 ` Morten Brørup
2024-04-03 22:45 ` Tyler Retzlaff
2024-04-03 21:49 ` Stephen Hemminger
2024-04-03 17:53 ` [PATCH v10 3/4] security: " Tyler Retzlaff
2024-04-03 21:50 ` Stephen Hemminger
2024-04-03 17:53 ` [PATCH v10 4/4] cryptodev: " Tyler Retzlaff
2024-04-03 21:50 ` Stephen Hemminger
2024-04-04 17:51 ` [PATCH v11 0/4] remove use of RTE_MARKER fields in libraries Tyler Retzlaff
2024-04-04 17:51 ` [PATCH v11 1/4] net/i40e: use inline prefetch function Tyler Retzlaff
2024-04-04 17:51 ` [PATCH v11 2/4] mbuf: remove rte marker fields Tyler Retzlaff
2024-04-04 17:51 ` [PATCH v11 3/4] security: " Tyler Retzlaff
2024-04-04 17:51 ` [PATCH v11 4/4] cryptodev: " Tyler Retzlaff
2024-06-19 15:01 ` [PATCH v12 0/4] remove use of RTE_MARKER fields in libraries David Marchand
2024-06-19 15:01 ` [PATCH v12 1/4] net/i40e: use mbuf prefetch helper David Marchand
2024-06-19 15:01 ` [PATCH v12 2/4] mbuf: remove marker fields David Marchand
2024-06-19 15:01 ` [PATCH v12 3/4] security: " David Marchand
2024-06-19 15:01 ` [PATCH v12 4/4] cryptodev: " David Marchand
2024-06-19 17:30 ` [PATCH v12 0/4] remove use of RTE_MARKER fields in libraries David Marchand
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