linux-kernel - [RFC net-next 0/2] gve: Link IRQs, queues, and NAPI instances

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Message-Id: <20240926030025.226221-1-jdamato@fastly.com>
Date: Thu, 26 Sep 2024 03:00:20 +0000
From: Joe Damato <jdamato@...tly.com>
To: netdev@...r.kernel.org
Cc: Joe Damato <jdamato@...tly.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Harshitha Ramamurthy <hramamurthy@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Jeroen de Borst <jeroendb@...gle.com>,
	linux-kernel@...r.kernel.org (open list),
	Paolo Abeni <pabeni@...hat.com>,
	Praveen Kaligineedi <pkaligineedi@...gle.com>,
	Shailend Chand <shailend@...gle.com>,
	Simon Horman <horms@...nel.org>,
	Willem de Bruijn <willemb@...gle.com>,
	Ziwei Xiao <ziweixiao@...gle.com>
Subject: [RFC net-next 0/2] gve: Link IRQs, queues, and NAPI instances

Greetings:

This RFC uses the netdev-genl API to link IRQs and queues to NAPI IDs so
that this information is queryable by user apps. This is particularly
useful for epoll-based busy polling apps which rely on having access to
the NAPI ID.

I've tested these commits on a GCP instance with a GVE NIC configured
and have included test output in the commit messages for each patch
showing how to query the information.

I hope to send this next week when net-next reopens as an official
submission, but wanted to send an RFC now in case there were any changes
requested from the GVE maintainers.

Thanks,
Joe

Joe Damato (2):
  gve: Map IRQs to NAPI instances
  gve: Map NAPI instances to queues

 drivers/net/ethernet/google/gve/gve_main.c  | 12 ++++++++++++
 drivers/net/ethernet/google/gve/gve_utils.c |  1 +
 2 files changed, 13 insertions(+)

-- 
2.43.0