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From: "Xu, Ting" <ting.xu@intel.com>
To: "Dumitrescu, Cristian" <cristian.dumitrescu@intel.com>, "dev@dpdk.org"
<dev@dpdk.org>
CC: "stable@dpdk.org" <stable@dpdk.org>
Thread-Topic: [PATCH v4] lib/table: fix cache alignment issue
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Date: Wed, 22 Jul 2020 08:30:41 +0000
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Subject: Re: [dpdk-dev] [PATCH v4] lib/table: fix cache alignment issue
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Hi, Cristian,
> -----Original Message-----
> From: Dumitrescu, Cristian <cristian.dumitrescu@intel.com>
> Sent: Wednesday, July 22, 2020 4:27 PM
> To: Xu, Ting <ting.xu@intel.com>; dev@dpdk.org
> Cc: stable@dpdk.org
> Subject: RE: [PATCH v4] lib/table: fix cache alignment issue
>=20
>=20
>=20
> > +#ifdef RTE_ARCH_64
> > struct rte_bucket_4_32 {
> > /* Cache line 0 */
> > uint64_t signature[4 + 1];
> > @@ -46,6 +47,22 @@ struct rte_bucket_4_32 {
> > /* Cache line 3 */
> > uint8_t data[0];
> > };
> > +#else
> > +struct rte_bucket_4_32 {
> > + /* Cache line 0 */
> > + uint64_t signature[4 + 1];
> > + uint64_t lru_list;
> > + struct rte_bucket_4_32 *next;
> > + uint32_t pad;
> > + uint64_t next_valid;
> > +
> > + /* Cache lines 1 and 2 */
> > + uint64_t key[4][4];
> > +
> > + /* Cache line 3 */
> > + uint8_t data[0];
> > +};
> > +#endif
> >
>=20
> Hi Ting,
>=20
> Yes, it looks good, but as mentioned previously please do the same on the
> other files in the same folder and add the changes to your patch, as we n=
eed
> to keep all these files in sync:
>=20
> rte_table_hash_key8.c, struct rte_bucket_4_8 rte_table_hash_key32.c, stru=
ct
> rte_bucket_4_32
>=20
I have did the changes to 8 and 32 bytes in this patch.
> Thanks,
> Cristian