From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qk1-f171.google.com (mail-qk1-f171.google.com [209.85.222.171]) (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 C74414BC011 for ; Wed, 6 May 2026 17:44:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.222.171 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778089478; cv=none; b=ReBfl6NernM+2LyRTw+GVvvSYbaeP56TRg4cKeYGADOprPYl8aP/MGsyIabNLiOYNmvAQNO5vV7t5BoHmTjVMU4I6g8yboqrEm0UDfcXfh7F8PQaypBzJ4SYXqgTqEZ/REUZ3vUQO26naX86EQuJH9ZMUHxSUgwUMYNLIfzv+C8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778089478; c=relaxed/simple; bh=/YjFQWxNpMQZ2f2KytppViSRzU0yZJvUee9ryGQwSOQ=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=LeGTMQSVS0xLtoITtsTftjaz8SQMsBZR1HRE2fsX5Ro/1HGdZObbdsCuAVQTNBeXsgUUOuHH8edaqm0AL5TV2/jBdkTdiwrqVPFut7PkItpCKtuVjxMq5Rlww8rycDtw2cKaJBGjnQo0HasmLy2PQ8nF3Ri9PNLFBzukOceVbV8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=riscstar.com; spf=pass smtp.mailfrom=riscstar.com; dkim=pass (2048-bit key) header.d=riscstar-com.20251104.gappssmtp.com header.i=@riscstar-com.20251104.gappssmtp.com header.b=A/tWM9I+; arc=none smtp.client-ip=209.85.222.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=riscstar.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=riscstar.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=riscstar-com.20251104.gappssmtp.com header.i=@riscstar-com.20251104.gappssmtp.com header.b="A/tWM9I+" Received: by mail-qk1-f171.google.com with SMTP id af79cd13be357-8eae9229110so1064530285a.1 for ; Wed, 06 May 2026 10:44:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=riscstar-com.20251104.gappssmtp.com; s=20251104; t=1778089473; x=1778694273; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=k6wXO6STmxH+YsbEuPXhWzzsM6OvvesRxD9MxXwGEOY=; b=A/tWM9I+MidkfGgsZV3URMJGGeCgr+x0pwX/vDmp9qjFxG3qTM0C7yaPymIneMJsak 00eo6ukEIws+rAbKxilEt8PE3bBQl/bdeIR843LD5oyHIoQlulo6XQ2P7r5eu8hR4feO KEVy7WEU2p/Ey/PiAiRMaz+tmrsQkdVuICkapNuYK1QpbWLQoF14Yl0qTNN55VLq3nHj tbr9KV5I1Xt75WkkNjVUdlujZzYhGTnfDX4KghuHirRo+pcUytReOCCL8DveJ7DESIQB UXqEHuL//GRfLjdNZXXg54F1QEu0gFapghqGj2IZcfZ9iImftmoCfFv33sIOaKewB+a6 47XA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778089473; x=1778694273; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=k6wXO6STmxH+YsbEuPXhWzzsM6OvvesRxD9MxXwGEOY=; b=D7GbXtwH2A3RbekzdCBlP87AS8CJLakAUe+jRxwFLLlH4HfpnoguMFAC9zjPPjsbaF HpHkRk7WupOwBy7MbGwgD8Zc8w4dJAvkOE02L8TAp+CcSobB4PejsBqiaCH3FOHhdkq2 PS+2lpMSfi7FToRXXEWMlnXPWmvrvYgRa/h5x/kdrAjxoTb9MZG2oGXUI2EIG0FPSRJH 7HCHq+V89Qj0gkx7/7t/Ng0xufJGd9pzpMf38p9OLqHnhLgvuKHnZ0TXWcH648s8Wu5A 3xgbTMoTXJ3hI70X4lhOTI7Fu7Gfk3g6C5GypdOsJd45wou/X+mpP0cqGRmsgCutG8q3 3NRg== X-Forwarded-Encrypted: i=1; AFNElJ8oYmZg+siNdYDnpPn32kEhvaXAdJFCoLSNM4RYsTW4KSAHH+bb6FxyW5nXwwz7RBSnciY0VyQ3moIEs5w5@vger.kernel.org X-Gm-Message-State: AOJu0Yxe7KMUVL7Q/dHWRf1LfxLy+NRnX9XfQ1Ou//hLrB3MYCHO0m9z 4E6hwTGuJGdiq8l34jtJczMB/FVZoVefmTuRcHLsk8+vojPWDnMwkzxB0uyqInuGyvE= X-Gm-Gg: AeBDiet1q5B6IdgK1RPyIiDnFD32xk1HBzz5DmtTNFYLOxCXHf7coofyaC7xfonB6Dk 2c84wfuSV7nJa1OJvWpqPmvxUpseduN9dW14WnvBqymTGBfMpUWTO+CHSRxd7/LopwK4dKcsX3E kCqx9kZPfyoJ24oPgZ4NA2pOHWHbR/xcmpE54zj5yK6m/jmC3P6b9sZ8Zk3h3fLQ0KH87jpP/3Y PGZzw5+Tutxhlt0K1raKSjgBNiFBG8Zk0NpKPkyrIm/DbV8kyfvcwoO2vp5BYtr3l9McXIX/PJn DLrVqmgZ7ag413iR07A0LxEcRi2UCuo+x3vfbt17CnWl0Yfrv+8QTLxUdtWHxLneRduSSbFIJOb WUYgOdhbaScT+RQoF1zqU16E95bZzhEbmmJOuzjsMrgyLWJk53WCm7ITXwy138pGqjllIBO/5fR F+i3mFVYVq7Doq6U3nmVhIw9jizC+7it4DWrCeAn8+brRFESdzNxA7KxL6gOFehX7dDvmvUEj2D w== X-Received: by 2002:a05:620a:f0c:b0:8f1:9e59:220e with SMTP id af79cd13be357-904d63e7a90mr642596485a.39.1778089473124; Wed, 06 May 2026 10:44:33 -0700 (PDT) Received: from [172.22.22.28] (c-75-72-117-212.hsd1.mn.comcast.net. [75.72.117.212]) by smtp.gmail.com with ESMTPSA id af79cd13be357-8fc2c91cdfbsm1736572285a.34.2026.05.06.10.44.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 06 May 2026 10:44:32 -0700 (PDT) Message-ID: <7f3a0f16-5159-4bbc-8b15-9b5841603bf6@riscstar.com> Date: Wed, 6 May 2026 12:44:28 -0500 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net-next 10/12] net: stmmac: tc956x: add TC956x/QPS615 support To: Xilin Wu , andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, maxime.chevallier@bootlin.com, rmk+kernel@armlinux.org.uk, andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linusw@kernel.org, brgl@kernel.org, arnd@arndb.de, gregkh@linuxfoundation.org Cc: Daniel Thompson , mohd.anwar@oss.qualcomm.com, a0987203069@gmail.com, alexandre.torgue@foss.st.com, ast@kernel.org, boon.khai.ng@altera.com, chenchuangyu@xiaomi.com, chenhuacai@kernel.org, daniel@iogearbox.net, hawk@kernel.org, hkallweit1@gmail.com, inochiama@gmail.com, john.fastabend@gmail.com, julianbraha@gmail.com, livelycarpet87@gmail.com, matthew.gerlach@altera.com, mcoquelin.stm32@gmail.com, me@ziyao.cc, prabhakar.mahadev-lad.rj@bp.renesas.com, richardcochran@gmail.com, rohan.g.thomas@altera.com, sdf@fomichev.me, siyanteng@cqsoftware.com.cn, weishangjuan@eswincomputing.com, wens@kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20260501155421.3329862-1-elder@riscstar.com> <20260501155421.3329862-11-elder@riscstar.com> Content-Language: en-US From: Alex Elder In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 5/5/26 9:30 PM, Xilin Wu wrote: > On 5/1/2026 11:54 PM, Alex Elder wrote: >> From: Daniel Thompson >> >> Toshiba TC956x is an Ethernet AVB/TSN bridge and is essentially a >> small and highly-specialized SoC. TC956x includes an "eMAC" subsystem >> that can be accessed, along with several other peripherals, via two >> PCIe endpoint functions. There is a main driver for the endpoint that >> decomposes things and creates auxiliary bus devices to model the SoC. >> >> The eMAC consists of a Designware XGMAC, XPCS and PMA. Each eMAC is >> supported by an MSIGEN that bridges TC956x level interrupts to PCIe >> MSIs. >> >> Add a driver for the eMAC/MSIGEN combination. >> >> Co-developed-by: Alex Elder >> Signed-off-by: Alex Elder >> Signed-off-by: Daniel Thompson >> --- >>   drivers/net/ethernet/stmicro/stmmac/Kconfig   |  13 + >>   drivers/net/ethernet/stmicro/stmmac/Makefile  |   2 + >>   .../ethernet/stmicro/stmmac/dwmac-tc956x.c    | 791 ++++++++++++++++++ >>   include/soc/toshiba/tc956x-dwmac.h            |  84 ++ >>   4 files changed, 890 insertions(+) >>   create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-tc956x.c >>   create mode 100644 include/soc/toshiba/tc956x-dwmac.h >> >> diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/ >> net/ethernet/stmicro/stmmac/Kconfig >> index e3dd5adda5aca..66bcfaccbe21f 100644 >> --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig >> +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig >> @@ -404,6 +404,19 @@ config DWMAC_MOTORCOMM >>         This enables glue driver for Motorcomm DWMAC-based PCI Ethernet >>         controllers. Currently only YT6801 is supported. >> +config DWMAC_TC956X >> +    tristate "Toshiba TC956X DWMAC support" >> +    depends on PCI >> +    depends on COMMON_CLK >> +    depends on TOSHIBA_TC956X_PCI >> +    default m if TOSHIBA_TC956X_PCI > > Hi Alex, > > I think GENERIC_IRQ_CHIP should be selected here. Yes there are a number of things missing in the Kconfig definitions and I'm working through them this week. And yes, since we use irq_generic_chip_ops we must ensure CONFIG_GENERIC_IRQ_CHIP is enabled here. > Thank you for the driver. Thank you for your feedback (this and others I see). -Alex