From nobody Sat Oct 4 14:17:03 2025 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.3]) by smtp.subspace.kernel.org (Postfix) with ESMTP id D5EBF29A2; Sat, 16 Aug 2025 15:47:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.3 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755359237; cv=none; b=X3iKFo2MqKCNJT2Old4h560jDIs/9mTrqCWhG8ruqMHADzBv7Mphpxq1ew85xatCGgDEDZ3FMSy8uAESQ6iO4JfGF0sGKNMpeDfP9cQErZe9sTPxOR90vA+FDKa01q2uUOJEMLbmamv8cQ9tu4Ek9EEppAdyh4epaXM5cYAtpMU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755359237; c=relaxed/simple; bh=tZD/NI2tbfdKZN3eDHSa07wID0HggpJGNVl01yof5iM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Ko7cZFs59knv8vtB+jbWvP+jcCo5fJgEXVh9czb+XcUC9pV9OAHXuMJxbiv/OM+CZw2BP2CnGB5kNerTXnhPIXDmMbYq0G4O6FLpnQu0usIMLVJlPWSnVdgMjpU73N4upCkL6zrNZy/ir9ndX4vF9z8mwMZ6DIhxSq1ugGYJjgw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=VviRnvZO; arc=none smtp.client-ip=117.135.210.3 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="VviRnvZO" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=5m hnomU1tZqz1YQkUYKLJ4Yj9naZm9l9LOEGKmYpfJs=; b=VviRnvZOgwUUNN5LvD X4EBV/1dtQ83B5HBidbQOH1d5gcB6sZGQ5v5vFLo6NBirYjcNptFJO8bWXMLeKM7 3Y4vUi+A4ztL20qqpMmTKsqOEAbNELNSHj+nPOZfOZmqCkpM89YhmBVMpTqJtghI SpifUoCzqu0eHZm+dm1KHOGpY= Received: from localhost.localdomain (unknown []) by gzga-smtp-mtada-g1-1 (Coremail) with SMTP id _____wDHfLfip6BoVzqMBw--.15530S3; Sat, 16 Aug 2025 23:46:43 +0800 (CST) From: Hans Zhang <18255117159@163.com> To: bhelgaas@google.com, lpieralisi@kernel.org, kw@linux.com, kwilczynski@kernel.org, mani@kernel.org, ilpo.jarvinen@linux.intel.com, jingoohan1@gmail.com Cc: robh@kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Hans Zhang <18255117159@163.com> Subject: [PATCH v3 1/3] PCI: Add PCIE_SPEED2LNKCTL2_TLS conversion macro Date: Sat, 16 Aug 2025 23:46:31 +0800 Message-Id: <20250816154633.338653-2-18255117159@163.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250816154633.338653-1-18255117159@163.com> References: <20250816154633.338653-1-18255117159@163.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: _____wDHfLfip6BoVzqMBw--.15530S3 X-Coremail-Antispam: 1Uf129KBjvJXoW7Cry8uFy3Cr43CFyUArWUJwb_yoW8JFWUp3 W7AFy5AFW8W3WUAr98Was2qa4rXFs3GF4Uur47W3sxXFyfK34kAr12yrW3t3sFqr4jkry8 Z3ZrKrWUCFy29F7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0pRjZXrUUUUU= X-CM-SenderInfo: rpryjkyvrrlimvzbiqqrwthudrp/1tbiWxyro2ignM3xTgAAsp Content-Type: text/plain; charset="utf-8" Introduce PCIE_SPEED2LNKCTL2_TLS() macro to standardize the conversion between PCIe speed enumerations and LNKCTL2_TLS register values. This centralizes speed-to-register mapping logic, eliminating duplicated conversion code across multiple drivers. Signed-off-by: Hans Zhang <18255117159@163.com> Acked-by: Manivannan Sadhasivam --- drivers/pci/pci.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 34f65d69662e..679dd0f44d73 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -422,6 +422,15 @@ void pci_bus_put(struct pci_bus *bus); PCI_SPEED_UNKNOWN); \ }) =20 +#define PCIE_SPEED2LNKCTL2_TLS(speed) \ + ((speed) =3D=3D PCIE_SPEED_2_5GT ? PCI_EXP_LNKCTL2_TLS_2_5GT : \ + (speed) =3D=3D PCIE_SPEED_5_0GT ? PCI_EXP_LNKCTL2_TLS_5_0GT : \ + (speed) =3D=3D PCIE_SPEED_8_0GT ? PCI_EXP_LNKCTL2_TLS_8_0GT : \ + (speed) =3D=3D PCIE_SPEED_16_0GT ? PCI_EXP_LNKCTL2_TLS_16_0GT : \ + (speed) =3D=3D PCIE_SPEED_32_0GT ? PCI_EXP_LNKCTL2_TLS_32_0GT : \ + (speed) =3D=3D PCIE_SPEED_64_0GT ? PCI_EXP_LNKCTL2_TLS_64_0GT : \ + 0) + /* PCIe speed to Mb/s reduced by encoding overhead */ #define PCIE_SPEED2MBS_ENC(speed) \ ((speed) =3D=3D PCIE_SPEED_64_0GT ? 64000*1/1 : \ --=20 2.25.1