From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=194.117.254.33 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794511836; b=hKpZBRIxtR2N7IOCaDzs/FzW+L94hYa+QzD8oT6UHsjB4k8Oigql/XxDPKOGnIJpfaft hE8K8YEAVqXEgsk5Auj2IPKvE8ZZjCQC2VvLYmW6U1w4gHmgEr9VcxAki4syV5FunDIXp t2VwESENYq3r68ANUaj9W+yWgbOff/4Qi/cigrgnwAPqCojMt9bIrqgBBlKntPQ4yNbCI UL/1dUdqv914TzFvOR6T9z7zmUUyi/QZQ7pC+I715+vU2xfeYllvZU/ISrQBBrf1o5BjD 9otFY86ZLSYmV50kdMfGugEQRzBGQ7HTt60K5ifEUDmemOdpPZWm0t3TpHEEeSd+FNg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794511836; h=DMARC-Filter:DKIM-Signature:Received:Received:X-UD-Smtp-Session:Date: From:To:Cc:Subject:Message-ID:References:MIME-Version:Content-Type: Content-Disposition:In-Reply-To; bh=J3WxrQRGopNDU66vbcWMRObNcRT1gSGY3aYp/KopfOU=; b=KfhqeLNW7v+ka19XV2N18l+ngzRUVLQrFMLb8Nfs2m573Lh9ilbidnRBosS1jtpgE9UM quYND9lJI04u7zVxhCofqVDSt4w4CYw5wv9H1D8rBzW0vQGfTyfIqhm7l71I6jqxgCymM WFUAiM3dEYscG5js+buPZz+QD025Mb7dJjxADY1rtQqqN1CNyiANcT9l+4zZ+E/+3/nql ByCp7bN46QmK6ImZ0BJreg3YHOOaqmE6UDqhaL8VwOJFEjFyW8zeVNpDTA7Y4puR4iF0l ST70dCzVF3RLDz70Dk1t8WJbvwt+Z+JzBbK4zu15BNeaUcTzcEyuoC6aBWhmgogOMeg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none header.from=sang-engineering.com; spf=pass smtp.mailfrom=sang-engineering.com; dkim=pass header.d=sang-engineering.com header.i=@sang-engineering.com header.a=rsa-sha256 header.s=k1 header.b=EPf93kMG; arc=none smtp.remote-ip=194.117.254.33 Received: from mail.zeus03.de (zeus03.de [194.117.254.33]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3933C606A31C for ; Thu, 12 Nov 2026 19:30:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 3933C606A31C Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=sang-engineering.com header.i=@sang-engineering.com header.a=rsa-sha256 header.s=k1 header.b=EPf93kMG DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= sang-engineering.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to; s=k1; bh=J3Wx rQRGopNDU66vbcWMRObNcRT1gSGY3aYp/KopfOU=; b=EPf93kMGjdHYDb6ulCsz OO7qAQJ66lftMg0xsz8cBWhV2jTm/17pGA2NJ5MdqAz3wMBs70btO3zMea17M7qi 6IdXnY5wN9nVHU6/gw4w4XXRz2hOzuPzdgyVTI6b28DWa1uwTZJ2+jBMPaQYKTg8 I6bnjRtpvtsKpCil9mtAQwl6VTZEoD+70JqQZ1bM8wuTqQ3qPjkc5vx4nE1jeQ2j DkIXK0eLG5/UZ2DlPX4cMGhVeGbqmBf1BvT16rra1wRVt6glP0crIJtvxj6ONeRD JiM2s/jevkvLUNMBxMOW7ZblgKN8I9uDqGgFf/M+2xEYhNbGfgjUziw9M7tMqAH+ Rw== Received: (qmail 1105692 invoked from network); 12 Nov 2026 20:30:31 +0100 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 12 Nov 2026 20:30:31 +0100 X-UD-Smtp-Session: l3s3148p1@cQQ3WBlgEu4ujnsG Date: Thu, 12 Nov 2026 20:30:30 +0100 From: Wolfram Sang To: Claudiu Beznea Cc: lpieralisi@kernel.org, kwilczynski@kernel.org, mani@kernel.org, robh@kernel.org, bhelgaas@google.com, p.zabel@pengutronix.de, geert+renesas@glider.be, magnus.damm@gmail.com, claudiu.beznea@tuxon.dev, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Claudiu Beznea Subject: Re: [PATCH v7 00/14] PCI: rzg3s-host: Add PCIe hotplug support Message-ID: References: <20261019065025.2146539-1-claudiu.beznea@kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="RyV85lgRIjw+KpUK" Content-Disposition: inline In-Reply-To: <20261019065025.2146539-1-claudiu.beznea@kernel.org> --RyV85lgRIjw+KpUK Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Oct 19, 2026 at 09:50:11AM +0300, Claudiu Beznea wrote: > From: Claudiu Beznea >=20 > Hi, >=20 > Series adds hotplug support for the rzg3s-host driver. This is a > continuation of the series John posted initially at [1]. Along with it, > prerequisites fixes and cleanup patches were added. >=20 > Series was tested on RZ/G3S and RZ/G3E boards by generating consecutive > link down/up events. The RZ/G3S has an I2C device which, depending on > the way it is programmed, it controls the state of the PCIe link. The > board has 3 PCIe interface: PCIE_SLOT, M.2 Key E, M.2 Key B. The > following script was executed for ~9 hours: >=20 > #!/bin/sh >=20 > echo performance > /sys/module/pcie_aspm/parameters/policy >=20 > while :; do > i2cset -y 1 0x18 0xf4 0x8 # Link down > i2cset -y 1 0x18 0xf4 0xc # Link up: PCIE_SLOT (NVMe Micron) > i2cset -y 1 0x18 0xf4 0x8 # Link down > i2cset -y 1 0x18 0xf4 0xd # Link up: M.2 Key B (NVMe Transcend) > i2cset -y 1 0x18 0xf4 0x8 # Link down > i2cset -y 1 0x18 0xf4 0xb # Link up: M.2 Key E (WiFi AX200) > done Tested with my G3S board and physical plug/unplug as well as the script above: Tested-by: Wolfram Sang --RyV85lgRIjw+KpUK Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmr2E9IACgkQFA3kzBSg Kbb9ahAAsiV3mOdb9EPgFqVKtBzJhk5UdZS9yZMihnc+JVJujGlgMFqiU8GR0oBh ond+Tq2lWvTyjg+djRVpCnpVx+/BLj3uxXDDzovHHF4GOs8HDJOQWohkFIi8FQsa uNJ6l+07jkzKUtlKisuq9Lutf8tDbsIJqqhotVQI0ygmb3OfNELN+qfaMmZu5Cba SN54mh3ocjhC5ERBSCXtGhnBO2Z2livPjVIV5bV67aF+GW/C4ZqhEwfXLR5jzujg 4hiqWZEfxCjfE7pfY/5UD8apUyltuiWC6yt45HdkHiAgb+V8yPIpP4nlRUTpBQWi gqGC2wlHbEbLiPjpbXzzLUvUcDBbI2JLeeSQ6YQn9RoeyzPKIBZU77m7VPulZUpR ANCP7ewI6RL33OT3W/g4eARXHivJpeI5bTgieJeBYrAcmwJSC/PNxY+UkD89YwYS sVLvniCV469iOP10iiUjYnAtai2qAvhR+7cCLy6CAPWDNBgJPEAt4oRjLlSBXpeM 64GIzxYmQ+pyKnHwAoDUCRfixNGdydDFsCTfFM8u5mdJ6eZNm0gPMGsNOgkC08Wx RSVoiaOvdWLdupIgnl5IavCUljvzZtZPAHcBubspk1ZAzVgIT0uA4cCv8f4ICW5F kCAST8oFakSg1onGjQlVJbJjkQQKxRmEYaWx875+8jXncxo5EqM= =34Oe -----END PGP SIGNATURE----- --RyV85lgRIjw+KpUK--