From: Daniel Zahka <daniel.zahka@gmail.com>
To: Alexander Duyck <alexanderduyck@fb.com>,
Jakub Kicinski <kuba@kernel.org>,
kernel-team@meta.com, Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Jesper Dangaard Brouer <hawk@kernel.org>,
John Fastabend <john.fastabend@gmail.com>,
Stanislav Fomichev <sdf@fomichev.me>,
Dimitri Daskalakis <dimitri.daskalakis1@gmail.com>,
Mohsin Bashir <mohsin.bashr@gmail.com>
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
bpf@vger.kernel.org
Subject: [PATCH net-next 0/8] eth: mpnic: initial support for Meta Platforms NIC
Date: Tue, 22 Sep 2026 18:43:38 -0700 [thread overview]
Message-ID: <20260922-linux-mpnic-v1-0-236844f53072@gmail.com> (raw)
Meta Platforms NIC is the second-generation NIC from Meta. There are
quite a few high-level similarities to fbnic, but all of the CSRs and
descriptors have been reshuffled, and new features have been added.
Since the device is sufficiently different from fbnic, and the design of
our FW is minimal, we have decided a separate driver is appropriate.
Major new features compared to fbnic will take a while to land. This
series includes only the bare-bones Tx/Rx datapath.
Our high-level patch sequence and plan for the upcoming series is:
1. Core datapath (this series)
2. Basic offloads, RSS, and counters
3. Firmware mailbox support
4. Base ethtool operations
This patch series was prepared in part with these LLM prompts:
https://github.com/kuba-moo/ai-prompts/blob/main/driver-upstreaming-prompts.md
The prompts were used to distill our fully-featured OOT driver into this
minimal Tx/Rx capable upstream driver. We then performed human review on
the output to create this posting. Jakub has made the prompts public in
case people would like to take a look.
Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com>
---
Daniel Zahka (7):
eth: mpnic: add scaffolding for Meta Platforms NIC
eth: mpnic: allocate MSI-X vectors
eth: mpnic: implement Tx queue allocation and cleanup
eth: mpnic: start and stop the Tx HW queues
eth: mpnic: add a netdevice and basic Tx handling
eth: mpnic: implement Rx queue allocation and cleanup
eth: mpnic: add basic Rx handling
Mohsin Bashir (1):
eth: mpnic: add register init for the device
drivers/net/ethernet/meta/Kconfig | 13 +
drivers/net/ethernet/meta/Makefile | 1 +
drivers/net/ethernet/meta/mpnic/Makefile | 16 +
drivers/net/ethernet/meta/mpnic/mpnic.h | 66 ++
drivers/net/ethernet/meta/mpnic/mpnic_csr.h | 321 ++++++
drivers/net/ethernet/meta/mpnic/mpnic_init.c | 553 ++++++++++
drivers/net/ethernet/meta/mpnic/mpnic_irq.c | 64 ++
drivers/net/ethernet/meta/mpnic/mpnic_netdev.c | 181 +++
drivers/net/ethernet/meta/mpnic/mpnic_netdev.h | 35 +
drivers/net/ethernet/meta/mpnic/mpnic_pci.c | 187 ++++
drivers/net/ethernet/meta/mpnic/mpnic_txrx.c | 1398 ++++++++++++++++++++++++
drivers/net/ethernet/meta/mpnic/mpnic_txrx.h | 147 +++
12 files changed, 2982 insertions(+)
---
base-commit: 6598456d72e48d779445bfec8f72114747f8b8d7
change-id: 20260918-linux-mpnic-8fa318d530fa
Best regards,
--
Daniel Zahka <daniel.zahka@gmail.com>
next reply other threads:[~2026-09-23 1:43 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-23 1:43 Daniel Zahka [this message]
2026-09-23 1:43 ` [PATCH net-next 1/8] eth: mpnic: add scaffolding " Daniel Zahka
2026-09-23 1:43 ` [PATCH net-next 2/8] eth: mpnic: add register init for the device Daniel Zahka
2026-09-24 2:05 ` netdev-bot+sashiko
2026-09-24 16:16 ` Daniel Zahka
2026-09-24 16:22 ` Jakub Kicinski
2026-09-23 1:43 ` [PATCH net-next 3/8] eth: mpnic: allocate MSI-X vectors Daniel Zahka
2026-09-23 1:43 ` [PATCH net-next 4/8] eth: mpnic: implement Tx queue allocation and cleanup Daniel Zahka
2026-09-24 2:05 ` netdev-bot+sashiko
2026-09-24 16:39 ` Daniel Zahka
2026-09-23 1:43 ` [PATCH net-next 5/8] eth: mpnic: start and stop the Tx HW queues Daniel Zahka
2026-09-24 2:05 ` netdev-bot+sashiko
2026-09-24 17:49 ` Daniel Zahka
2026-09-23 1:43 ` [PATCH net-next 6/8] eth: mpnic: add a netdevice and basic Tx handling Daniel Zahka
2026-09-24 2:05 ` netdev-bot+sashiko
2026-09-24 18:08 ` Daniel Zahka
2026-09-23 1:43 ` [PATCH net-next 7/8] eth: mpnic: implement Rx queue allocation and cleanup Daniel Zahka
2026-09-24 2:05 ` netdev-bot+sashiko
2026-09-24 18:23 ` Daniel Zahka
2026-09-23 1:43 ` [PATCH net-next 8/8] eth: mpnic: add basic Rx handling Daniel Zahka
2026-09-24 2:05 ` netdev-bot+sashiko
2026-09-24 18:38 ` Daniel Zahka
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