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charset="utf-8" Content-Transfer-Encoding: quoted-printable From: Stephen Hemminger Sent: Tuesday, May 20, 2025 8:47 PM To: Kiran Kumar Kokkilagadda Cc: Aman Singh ; Thomas Monjalon ; Ferruh Yigit ; Andrew Rybchenko ; dev@dpdk.org Subject: [EXTERNAL] Re: [PATCH v6 1/2] ethdev: support RSS based on RoCEv2 = header On Mon, 5 May 2025 11:=E2=80=8A27:=E2=80=8A15 +0530 wrote: > @@ -149,6 +151,7 @@ const struct rss_type_inf= o rss_type_table[] =3D { > { "l3-dst-only", RTE_ETH_RSS_L3_DST_ONLY }, > { = "l3-src-only", RTE_ETH_RSS_L3_SRC_ONLY On Mon, 5 May 2025 11:27:15 +0530 > wrote: > @@ -149,6 +151,7 @@ const struct rss_type_info rss_type_table[] =3D { > { "l3-dst-only", RTE_ETH_RSS_L3_DST_ONLY }, > { "l3-src-only", RTE_ETH_RSS_L3_SRC_ONLY }, > { "ipv6-flow-label", RTE_ETH_RSS_IPV6_FLOW_LABEL }, > + { "ib_bth", RTE_ETH_RSS_IB_BTH }, Please follow convention of other options. Use minus instead of underscore. Consistency matters. Ack. Will change it. > diff --git a/doc/guides/rel_notes/release_25_07.rst b/doc/guides/rel_note= s/release_25_07.rst > index 093b85d206..d1293893be 100644 > --- a/doc/guides/rel_notes/release_25_07.rst > +++ b/doc/guides/rel_notes/release_25_07.rst > @@ -55,6 +55,10 @@ New Features > Also, make sure to start the actual text at the margin. > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D > > +* **Added new RSS offload types for IB_BTH in RSS flow.** > + > + Added ``RTE_ETH_RSS_IB_BTH`` macro so that the IB BTH header can be= used as input set for RSS. > + Please add reference to the relevant standard and expand the acronym at least one place in the documentation. Ack. Will do. > diff --git a/lib/ethdev/rte_ethdev.h b/lib/ethdev/rte_ethdev.h > index ea7f8c4a1a..edcd6b75b5 100644 > --- a/lib/ethdev/rte_ethdev.h > +++ b/lib/ethdev/rte_ethdev.h > @@ -602,6 +602,7 @@ struct rte_eth_rss_conf { > > #define RTE_ETH_RSS_L2TPV2 RTE_BIT64(36) > #define RTE_ETH_RSS_IPV6_FLOW_LABEL RTE_BIT64(37) > +#define RTE_ETH_RSS_IB_BTH RTE_BIT64(38) > Why is the acronym IB_BTH rather than ROCEV2? Wouldn't it be clearer if it followed convention? This is to keep in sync with RTE_FLOW_TYPE_IB_BTH --_000_SJ4PPF18AE1ADF75C98EEC48F063DA7A3F8AC9EASJ4PPF18AE1ADF7_ Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

 

 

From: Stephen Hemminger <stephen@= networkplumber.org>
Sent: Tuesday, May 20, 2025 8:47 PM
To: Kiran Kumar Kokkilagadda <kirankumark@marvell.com>
Cc: Aman Singh <aman.deep.singh@intel.com>; Thomas Monjalon &l= t;thomas@monjalon.net>; Ferruh Yigit <ferruh.yigit@amd.com>; Andre= w Rybchenko <andrew.rybchenko@oktetlabs.ru>; dev@dpdk.org
Subject: [EXTERNAL] Re: [PATCH v6 1/2] ethdev: support RSS based on = RoCEv2 header

 

On Mon, 5 May 2025 11:=E2=80= =8A27:= =E2=80=8A15 +0530 <kirankumark@=E2=80=8Amarvell.=E2=80=8Acom> wrote: > @@ -149,6 +151,7 @@ const struct rss_type_info rss_type_table[= ] =3D { > { "l3-dst-only", RTE_ETH_RSS_L3_DST_ONLY }, > { &= quot;l3-src-only", RTE_ETH_RSS_L3_SRC_ONLY

On Mon, 5 May 2025 11:27:15 +0530
<kirankumark@marvell.com<=
/a>> wrote:
> @@ -149,6 +151,7 @@ const struct rss_type_info rss_type_table[] =
=3D {
>           { "l3-=
dst-only", RTE_ETH_RSS_L3_DST_ONLY },
>           { "l3-=
src-only", RTE_ETH_RSS_L3_SRC_ONLY },
>           { "ipv=
6-flow-label", RTE_ETH_RSS_IPV6_FLOW_LABEL },
> +        { "ib_bth", =
RTE_ETH_RSS_IB_BTH },
 
Please follow convention of other options. Use minus instead of undersc=
ore.
Consistency matters.
 
Ack. Will change it.
 
> diff --git a/doc/guides/rel_notes/release_25_07.rst b/doc/guides/r=
el_notes/release_25_07.rst
> index 093b85d206..d1293893be 100644
> --- a/doc/guides/rel_notes/release_25_07.rst

> +++ b/doc/guides/rel_notes/release_25_07.rst

> @@ -55,6 +55,10 @@ New Features


>       Also, make sure to start the a=
ctual text at the margin.


>       =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D


>  


> +* **Added new RSS offload types for IB_BTH in RSS flow.**


> +


> +     Added ``RTE_ETH_RSS_IB_BTH`` macro so th=
at the IB BTH header can be used as input set for RSS.

> +


 


Please add reference to the relevant standard and expand the acronym


at least one place in the documentation.


 


Ack. Will do.


 


 


> diff --git a/lib/ethdev/rte_ethdev.h b/lib/ethdev/rte_ethdev.h


> index ea7f8c4a1a..edcd6b75b5 100644


> --- a/lib/ethdev/rte_ethdev.h


> +++ b/lib/ethdev/rte_ethdev.h


> @@ -602,6 +602,7 @@ struct rte_eth_rss_conf {

>  


>  #define RTE_ETH_RSS_L2TPV2     &nbs=
p;       RTE_BIT64(36)


>  #define RTE_ETH_RSS_IPV6_FLOW_LABEL    RTE_BI=
T64(37)


> +#define RTE_ETH_RSS_IB_BTH      &nb=
sp;            =
     RTE_BIT64(38)


>  


 


Why is the acronym IB_BTH rather than ROCEV2?


Wouldn't it be clearer if it followed convention?

 


This is to keep in sync with RTE_FLOW_TYPE_IB_BTH
--_000_SJ4PPF18AE1ADF75C98EEC48F063DA7A3F8AC9EASJ4PPF18AE1ADF7_--