From patchwork Tue Jun 25 14:35:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Duyck X-Patchwork-Id: 13711257 Received: from mail-pf1-f175.google.com (mail-pf1-f175.google.com [209.85.210.175]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 14D1A1BC57; Tue, 25 Jun 2024 14:35:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.175 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719326140; cv=none; b=Kt6c5JX173qWsDX8EylfK0HMwOLkGq73QsXKfvzLatNeA7jwAhxbkuTNAdnD4fE1EevfwdcsU3Bb9QZ0Y5/sdma5uDGXNbJMPzuCx3a/0JSMjWveVeJL/jN2Y70elZ5AQhjkghHasMRNIvgU26N0POVW+B24EJpbaMZGAhFHGos= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719326140; c=relaxed/simple; bh=SkHpI1zd8SNo3gK+qgFniwBjaIDqT9u24PGuFAi7HQk=; h=Subject:From:To:Cc:Date:Message-ID:MIME-Version:Content-Type; b=rc3qXEI5H79L7lYTWk++Lsuqi4VtSkmS30u1QByjb2O/KjRicOspNdnTSz2fm8cwxyKSGrz425OLyxHRFKl736+MNtZb5wCO+v+kxsZKDdvmOqZv3XC5dQavyMpOLAVz8ZIKYnRMB9roaybL7mQ0JkCXf10vX32dYCCxbZM7n38= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=aJxH6yoW; arc=none smtp.client-ip=209.85.210.175 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="aJxH6yoW" Received: by mail-pf1-f175.google.com with SMTP id d2e1a72fcca58-70666aceb5bso2578451b3a.1; Tue, 25 Jun 2024 07:35:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1719326138; x=1719930938; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:user-agent:message-id:date :cc:to:from:subject:from:to:cc:subject:date:message-id:reply-to; bh=EX0O6UgYajkDhWepXD4nSgwP45HITAz1UJqIYnpckeo=; b=aJxH6yoW0I41dP69AO1lxOzpq5m6VVPjEjbz+Oybbi3zQ83AE75/bobMcgli+B0SsY 3zIqUSrPHMmROjtKTcwQgVl4zcKa70Q0BBUo94e7OqeRYrjj3aOQi5u0cRpQ8AYrZoXc kGs8zbqLuvHoU3QXqw8t2N5x9aGDtfi+tJ5M0NeGWAByLvx8XuNBYb/dSqCbKssUUi3m A55ZvctKZ9b2uPLwU6WoSIqvKQdxEGcdkvEebl8xihVmgEtYEYu6B3Ak2GKdn9Ny8urv rQBUpfCfxhEMOy5rfsLEfRSFAK6+QyGc1JTXXwTES7aBv49qH8e775aU3O18l4K0wHjp UcyA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719326138; x=1719930938; h=content-transfer-encoding:mime-version:user-agent:message-id:date :cc:to:from:subject:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=EX0O6UgYajkDhWepXD4nSgwP45HITAz1UJqIYnpckeo=; b=FzhllgSos/gXb/Iu+V6mSp2ZaPi9YJVCD1CwKyIn+lbkFb7XTIP1k99KliqvJh2Ast TqAiE86SdjzlXHNEAzdG94mLfEr28cZgOLYjZq34uU4pMhsKQLP/LLst/FiUL6k2POwH oL02IVs9Fz1nkiDFJEfmrJ3+vhiK0YcUVjHMIMB9KMXohA/weCBDeghFwFUgeJfCLBsv 5CZCWnHxX7YPMjG+651aN1606+BVC9xonxWnmrPKEiyJPwOJAs5Xd7w6YL7ZXr927DyH db8sZvxemX7wEIpE22mJnQ4OXOwGNYoPR2jodw1glsfFwAACwqgjd0mPGp9bpFbkMbf+ WNYA== X-Forwarded-Encrypted: i=1; AJvYcCWQw41mUUhL84/ieewXRHVB9KEOFoseAxy6BKqpl7Ub9XlWzHMt1vhPPPJcU7BW7gTcSwadH+UsigOSWtG8zwMKRy3hqZUNXZ4n X-Gm-Message-State: AOJu0YyPaj4su9zXgH+1eaYbhLo1BhFD0k6oqlFfANVQw7gZwUAthlRM 9dSG7NvYb2ue+CAp5Am2uMJLnVCgpjavkPWhfThIKNURiOpXUwNu X-Google-Smtp-Source: AGHT+IEWl3T9oPyLpqI5ChWVHzmqi7/jz84rmaU7/aFJ0a4l0pOnZnLSiMEwP4KMD3oGi3Ya6uaI1g== X-Received: by 2002:a05:6a20:4707:b0:1b8:6ed5:a70 with SMTP id adf61e73a8af0-1bcf7fd11d5mr7755715637.49.1719326138161; Tue, 25 Jun 2024 07:35:38 -0700 (PDT) Received: from ahduyck-xeon-server.home.arpa ([2605:59c8:829:4c00:9e5c:8eff:fe4f:f2d0]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-706511b137csm8180480b3a.86.2024.06.25.07.35.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Jun 2024 07:35:37 -0700 (PDT) Subject: [net-next PATCH v2 00/15] eth: fbnic: Add network driver for Meta Platforms Host Network Interface From: Alexander Duyck To: netdev@vger.kernel.org Cc: Andrew Lunn , Alexander Duyck , Bjorn Helgaas , linux-pci@vger.kernel.org, kuba@kernel.org, davem@davemloft.net, pabeni@redhat.com Date: Tue, 25 Jun 2024 07:35:36 -0700 Message-ID: <171932574765.3072535.12103787411698322191.stgit@ahduyck-xeon-server.home.arpa> User-Agent: StGit/1.5 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org This patchset includes the necessary patches to enable basic Tx and Rx over the Meta Platforms Host Network Interface. To do this we introduce a new driver and driver directories in the form of "drivers/net/ethernet/meta/fbnic". The NIC itself is fairly simplistic. As far as speeds we support 25Gb, 50Gb, and 100Gb and we are mostly focused on speeds and feeds. As far as future patch sets we will be supporting the basic Rx/Tx offloads such as header/payload data split, TSO, checksum, and timestamp offloads. We have access to the MAC and PCS from the NIC, however the PHY and QSFP are hidden behind a FW layer as it is shared between 4 slices and the BMC. Due to submission limits the general plan to submit a minimal driver for now almost equivalent to a UEFI driver in functionality, and then follow up over the coming months enabling additional offloads and features for the device. v2: - Pulled out most of the link logic leaving minimal phylink link interface - Added support for up to 64K pages by spanning multiple descriptors - Limited driver load message to only display on successful loading - Removed LED configuration, will reimplement in follow-on patch - Replaced pci_enable_msix_range with pci_alloc_irq_vectors - Updated comments to start with a capital letter - Limited architectures to x86_64 for now - Updated to "Return:" tag for kernel-doc - Added fbd to read/write CSR macros --- Alexander Duyck (15): PCI: Add Meta Platforms vendor ID eth: fbnic: Add scaffolding for Meta's NIC driver eth: fbnic: Allocate core device specific structures and devlink interface eth: fbnic: Add register init to set PCIe/Ethernet device config eth: fbnic: Add message parsing for FW messages eth: fbnic: Add FW communication mechanism eth: fbnic: Allocate a netdevice and napi vectors with queues eth: fbnic: Implement Tx queue alloc/start/stop/free eth: fbnic: Implement Rx queue alloc/start/stop/free eth: fbnic: Add initial messaging to notify FW of our presence eth: fbnic: Add link detection eth: fbnic: Add basic Tx handling eth: fbnic: Add basic Rx handling eth: fbnic: Add L2 address programming eth: fbnic: Write the TCAM tables used for RSS control and Rx to host MAINTAINERS | 7 + drivers/net/ethernet/Kconfig | 1 + drivers/net/ethernet/Makefile | 1 + drivers/net/ethernet/meta/Kconfig | 31 + drivers/net/ethernet/meta/Makefile | 6 + drivers/net/ethernet/meta/fbnic/Makefile | 19 + drivers/net/ethernet/meta/fbnic/fbnic.h | 156 ++ drivers/net/ethernet/meta/fbnic/fbnic_csr.h | 838 ++++++++ .../net/ethernet/meta/fbnic/fbnic_devlink.c | 86 + .../net/ethernet/meta/fbnic/fbnic_drvinfo.h | 5 + drivers/net/ethernet/meta/fbnic/fbnic_fw.c | 791 +++++++ drivers/net/ethernet/meta/fbnic/fbnic_fw.h | 124 ++ drivers/net/ethernet/meta/fbnic/fbnic_irq.c | 226 ++ drivers/net/ethernet/meta/fbnic/fbnic_mac.c | 694 ++++++ drivers/net/ethernet/meta/fbnic/fbnic_mac.h | 86 + .../net/ethernet/meta/fbnic/fbnic_netdev.c | 484 +++++ .../net/ethernet/meta/fbnic/fbnic_netdev.h | 65 + drivers/net/ethernet/meta/fbnic/fbnic_pci.c | 563 +++++ .../net/ethernet/meta/fbnic/fbnic_phylink.c | 159 ++ drivers/net/ethernet/meta/fbnic/fbnic_rpc.c | 709 +++++++ drivers/net/ethernet/meta/fbnic/fbnic_rpc.h | 189 ++ drivers/net/ethernet/meta/fbnic/fbnic_tlv.c | 529 +++++ drivers/net/ethernet/meta/fbnic/fbnic_tlv.h | 175 ++ drivers/net/ethernet/meta/fbnic/fbnic_txrx.c | 1879 +++++++++++++++++ drivers/net/ethernet/meta/fbnic/fbnic_txrx.h | 127 ++ include/linux/pci_ids.h | 2 + 26 files changed, 7952 insertions(+) create mode 100644 drivers/net/ethernet/meta/Kconfig create mode 100644 drivers/net/ethernet/meta/Makefile create mode 100644 drivers/net/ethernet/meta/fbnic/Makefile create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic.h create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_csr.h create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_devlink.c create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_drvinfo.h create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_fw.c create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_fw.h create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_irq.c create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_mac.c create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_mac.h create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_netdev.c create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_netdev.h create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_pci.c create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_phylink.c create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_rpc.c create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_rpc.h create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_tlv.c create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_tlv.h create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_txrx.c create mode 100644 drivers/net/ethernet/meta/fbnic/fbnic_txrx.h --