From: Jakub Kicinski <kuba@kernel.org>
To: "Björn Töpel" <bjorn@kernel.org>
Cc: Michael Chan <michael.chan@broadcom.com>,
Pavan Chebbi <pavan.chebbi@broadcom.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
linux-kselftest@vger.kernel.org,
Willem de Bruijn <willemb@google.com>
Subject: Re: [PATCH net-next 3/5] netdevsim: Add RSS context support with dynamic table sizing
Date: Tue, 3 Mar 2026 16:07:02 -0800 [thread overview]
Message-ID: <20260303160702.7d28437f@kernel.org> (raw)
In-Reply-To: <20260303181535.2671734-4-bjorn@kernel.org>
On Tue, 3 Mar 2026 19:15:31 +0100 Björn Töpel wrote:
> Add RSS indirection table, hash key, and non-default RSS context
> support to netdevsim. The create/modify/remove context callbacks are
> no-ops; the core manages context state in its xarray.
>
> The table size is dynamic: roundup_pow_of_two(channels) * 16, capped
> at NSIM_RSS_INDIR_MAX (128). This mimics drivers like bnxt where the
> table size changes with the queue count.
>
> nsim_set_channels() uses the core resize helpers to fold/unfold tables
> on channel count changes, exercising the full resize path.
Let's not bother with netdevsim support?
Let the HW tests cover this?
netdevsim was usual when we didn't have HW tests.
next prev parent reply other threads:[~2026-03-04 0:07 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-03 18:15 [PATCH net-next 0/5] ethtool: Dynamic RSS context indirection table resizing Björn Töpel
2026-03-03 18:15 ` [PATCH net-next 1/5] ethtool: Add RSS indirection table resize helpers Björn Töpel
2026-03-04 0:03 ` Jakub Kicinski
2026-03-04 11:37 ` Björn Töpel
2026-03-04 17:09 ` Jakub Kicinski
2026-03-03 18:15 ` [PATCH net-next 2/5] bnxt_en: Resize RSS contexts on channel count change Björn Töpel
2026-03-03 19:20 ` Michael Chan
2026-03-04 11:38 ` Björn Töpel
2026-03-04 0:05 ` Jakub Kicinski
2026-03-04 11:39 ` Björn Töpel
2026-03-03 18:15 ` [PATCH net-next 3/5] netdevsim: Add RSS context support with dynamic table sizing Björn Töpel
2026-03-04 0:07 ` Jakub Kicinski [this message]
2026-03-04 11:40 ` Björn Töpel
2026-03-03 18:15 ` [PATCH net-next 4/5] selftests: netdevsim: Add RSS indirection table resize test Björn Töpel
2026-03-04 0:07 ` Jakub Kicinski
2026-03-03 18:15 ` [PATCH net-next 5/5] selftests: rss_drv: Add RSS indirection table resize tests Björn Töpel
2026-03-04 0:16 ` Jakub Kicinski
2026-03-04 8:23 ` [PATCH net-next 0/5] ethtool: Dynamic RSS context indirection table resizing Pavan Chebbi
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