On 2023/11/10 9:18 PM, Morten Brørup wrote:
Dear Ruifeng,
Hi Morten,
+CC: all CPU architecture maintainers,
I'm trying to figure out the requirements for supporting unaligned memory
access in DPDK (specifically the ring library), and need your expert feedback.
The #define RTE_ARCH_STRICT
drew.rybche...@oktetlabs.ru; Gavin Hu
>
> Subject: RE: [dpdk-dev] [PATCH] ring: fix unaligned memory access on aarch32
>
> > From: Konstantin Ananyev [mailto:konstantin.anan...@huawei.com]
> > Sent: Friday, 10 November 2023 10.45
> >
> > > From: Morten Brørup
> > From: Konstantin Ananyev [mailto:konstantin.anan...@huawei.com]
> > Sent: Friday, 10 November 2023 10.45
> >
> > > From: Morten Brørup
> > > Sent: Friday, November 10, 2023 9:34 AM
> > >
> > > +CC Gavin, reviewed the test case
> > >
> > > > From: Ruifeng Wang [mailto:ruifeng.w...@arm.com]
> >
Dear Ruifeng,
+CC: all CPU architecture maintainers,
I'm trying to figure out the requirements for supporting unaligned memory
access in DPDK (specifically the ring library), and need your expert feedback.
The #define RTE_ARCH_STRICT_ALIGN - which is undocumented, but probably means
that CPU me
> From: Konstantin Ananyev [mailto:konstantin.anan...@huawei.com]
> Sent: Friday, 10 November 2023 10.45
>
> > From: Morten Brørup
> > Sent: Friday, November 10, 2023 9:34 AM
> >
> > +CC Gavin, reviewed the test case
> >
> > > From: Ruifeng Wang [mailto:ruifeng.w...@arm.com]
> > > Sent: Friday, 1
.@oktetlabs.ru; Gavin Hu
> Subject: RE: [dpdk-dev] [PATCH] ring: fix unaligned memory access on aarch32
>
> +CC Gavin, reviewed the test case
>
> > From: Ruifeng Wang [mailto:ruifeng.w...@arm.com]
> > Sent: Friday, 10 November 2023 09.40
> >
> > On 2023/11/4 8
+CC Gavin, reviewed the test case
> From: Ruifeng Wang [mailto:ruifeng.w...@arm.com]
> Sent: Friday, 10 November 2023 09.40
>
> On 2023/11/4 8:04 AM, Morten Brørup wrote:
> > I have for a long time now wondered why the ring functions for
> enqueue/dequeue of 64-bit objects supports unaligned addr
On 2023/11/4 8:04 AM, Morten Brørup wrote:
I have for a long time now wondered why the ring functions for enqueue/dequeue
of 64-bit objects supports unaligned addresses, and now I finally found the
patch introducing it.
From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Phil Yang
Sent: Mo
> From: Honnappa Nagarahalli [mailto:honnappa.nagaraha...@arm.com]
> Sent: Saturday, 4 November 2023 17.32
>
> > From: Morten Brørup
> > Sent: Friday, November 3, 2023 7:04 PM
> >
> > I have for a long time now wondered why the ring functions for
> > enqueue/dequeue of 64-bit objects supports una
u
> ; nd ; andrew.rybche...@oktetlabs.ru
> Subject: RE: [dpdk-dev] [PATCH] ring: fix unaligned memory access on aarch32
>
> I have for a long time now wondered why the ring functions for
> enqueue/dequeue of 64-bit objects supports unaligned addresses, and now I
> finally found the patch in
I have for a long time now wondered why the ring functions for enqueue/dequeue
of 64-bit objects supports unaligned addresses, and now I finally found the
patch introducing it.
> From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Phil Yang
> Sent: Monday, 9 March 2020 18.20
>
> The 32-bit arm
On Mon, Mar 9, 2020 at 6:20 PM Phil Yang wrote:
>
> The 32-bit arm machine doesn't support unaligned memory access. It
> will cause a bus error on aarch32 with the custom element size ring.
>
> Thread 1 "test" received signal SIGBUS, Bus error.
> __rte_ring_enqueue_elems_64 (n=1, obj_table=0xf5edf
The 32-bit arm machine doesn't support unaligned memory access. It
will cause a bus error on aarch32 with the custom element size ring.
Thread 1 "test" received signal SIGBUS, Bus error.
__rte_ring_enqueue_elems_64 (n=1, obj_table=0xf5edfe41, prod_head=0, \
r=0xf5edfb80) at /build/dpdk/build/inclu
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