{"id":2220111,"url":"http://patchwork.ozlabs.org/api/1.0/covers/2220111/?format=json","project":{"id":28,"url":"http://patchwork.ozlabs.org/api/1.0/projects/28/?format=json","name":"Linux PCI development","link_name":"linux-pci","list_id":"linux-pci.vger.kernel.org","list_email":"linux-pci@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null},"msgid":"<20260406105613.1228673-1-18255117159@163.com>","date":"2026-04-06T10:56:10","name":"[v6,0/3] PCI: Refactor PCIe speed validation and conversion functions","submitter":{"id":89937,"url":"http://patchwork.ozlabs.org/api/1.0/people/89937/?format=json","name":"Hans Zhang","email":"18255117159@163.com"},"series":[{"id":498843,"url":"http://patchwork.ozlabs.org/api/1.0/series/498843/?format=json","date":"2026-04-06T10:56:11","name":"PCI: Refactor PCIe speed validation and conversion functions","version":6,"mbox":"http://patchwork.ozlabs.org/series/498843/mbox/"}],"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pci@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=163.com header.i=@163.com header.a=rsa-sha256\n header.s=s110527 header.b=SRIsygnB;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c09:e001:a7::12fc:5321; helo=sto.lore.kernel.org;\n envelope-from=linux-pci+bounces-51951-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (1024-bit key) header.d=163.com header.i=@163.com\n header.b=\"SRIsygnB\"","smtp.subspace.kernel.org;\n arc=none smtp.client-ip=117.135.210.3","smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=163.com","smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=163.com"],"Received":["from sto.lore.kernel.org (sto.lore.kernel.org\n [IPv6:2600:3c09:e001:a7::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fq5r31StDz1yFt\n\tfor ; Mon, 06 Apr 2026 20:57:07 +1000 (AEST)","from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sto.lore.kernel.org (Postfix) with ESMTP id 2294E300751F\n\tfor ; Mon, 6 Apr 2026 10:57:03 +0000 (UTC)","from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 874243314D9;\n\tMon, 6 Apr 2026 10:56:59 +0000 (UTC)","from m16.mail.163.com (m16.mail.163.com [117.135.210.3])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 10E2031A061;\n\tMon, 6 Apr 2026 10:56:56 +0000 (UTC)","from Precision-7960.. (unknown [])\n\tby gzga-smtp-mtada-g1-4 (Coremail) with SMTP id\n _____wC37wJQkdNpmdyZDg--.25057S2;\n\tMon, 06 Apr 2026 18:56:16 +0800 (CST)"],"ARC-Seal":"i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1775473019; cv=none;\n b=RZkAGBNxUxTvNlczFG4r2g/9Q1Cw9Oaj7l+V+UQZuFwmnS3RDZkPmZHZ0eE2T0bXKi9r6asq2Jq9ZtRf2UBiNBt4yps450UNg2DL83FNl0lQCi/F3M1s362yEL6nz+OJqd3tcDV0S/dS3w5JBqvQMiHK7KTY+wq+k3FMAKmh3cA=","ARC-Message-Signature":"i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1775473019; c=relaxed/simple;\n\tbh=nan5179p0F4xSgv64zjXRiKBFJ0BJ3H/7k9IVZT0oEI=;\n\th=From:To:Cc:Subject:Date:Message-Id:MIME-Version;\n b=T2WZEjuH180JG6amSweZWJlXgeZ9RhdlCIW3u1qI/AQJe93zcmbJY/6sroIqKA7IyqK51T+A7RVg1FNbz7vU6bROKLRbQhyZdfYwKrk1uPcstYTrEBc1UO+O8Yur0jvur8v0q95g255Cu0CEcTuDIzzEsPBmN8b5e8m1rY2GzWw=","ARC-Authentication-Results":"i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=163.com;\n spf=pass smtp.mailfrom=163.com;\n dkim=pass (1024-bit key) header.d=163.com header.i=@163.com\n header.b=SRIsygnB; arc=none smtp.client-ip=117.135.210.3","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com;\n\ts=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=7L\n\tld9hOXfc3Ls9HFf+pUDgYMDFqZiJUBOpyviglyfjU=; b=SRIsygnBfn5wTzFKBR\n\tg18pm6kVb0KFZSAKyEdV0BIjjLgqsp9ql3h0xiGaBiSJUhk4S2yap7WC2vAQu7Wb\n\tbqoQCHYqrf2AHu4blUbRG8UjdmYZHmdxSD/wa4pUAu55zTdrIWzWWEH9FxGyhLAM\n\tWrm/YHlVLBZNsHti/gj2QJ3Ao=","From":"Hans Zhang <18255117159@163.com>","To":"bhelgaas@google.com,\n\tlpieralisi@kernel.org,\n\tkw@linux.com,\n\tkwilczynski@kernel.org,\n\tmani@kernel.org,\n\tilpo.jarvinen@linux.intel.com,\n\tjingoohan1@gmail.com","Cc":"robh@kernel.org,\n\tlinux-pci@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org,\n\tHans Zhang <18255117159@163.com>","Subject":"[PATCH v6 0/3] PCI: Refactor PCIe speed validation and conversion\n functions","Date":"Mon, 6 Apr 2026 18:56:10 +0800","Message-Id":"<20260406105613.1228673-1-18255117159@163.com>","X-Mailer":"git-send-email 2.34.1","Precedence":"bulk","X-Mailing-List":"linux-pci@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-CM-TRANSID":"_____wC37wJQkdNpmdyZDg--.25057S2","X-Coremail-Antispam":"1Uf129KBjvJXoW7uF1Uur17WF15Jry5tFW8JFb_yoW8Aw45pa\n\tyavw4fJrW7G343Ga97W3WjgFy5Wan3JrW0vry3J3s3Zr13ZFn3Jr4IgF4F9ry2yrWI9r42\n\tvr12vF1kCw1jkaDanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2\n\t9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0pRj2NZUUUUU=","X-CM-SenderInfo":"rpryjkyvrrlimvzbiqqrwthudrp/xtbCwxHHa2nTkVHzNwAA3A"},"content":"This series refactors PCIe speed validation and conversion logic to\nshared functions in the public header, eliminating code duplication\nand ensuring consistency across drivers.\n\n---\nChanges for v6:\n- missing one line of code:\n link_speed = pcie_get_link_speed(pci->max_link_speed); \n\nChanges for v5:\nhttps://patchwork.kernel.org/project/linux-pci/patch/20260406104708.1218648-1-18255117159@163.com/\n\n- Rebase to v7.0-rc1. (pci/next tree)\n\nChanges for v4:\nhttps://patchwork.kernel.org/project/linux-pci/patch/20251102143206.111347-1-18255117159@163.com/\n\n- Maintain O(1) array-based lookup for speed conversion (addressing\n performance concerns from v3 feedback)\n- Move pcie_valid_speed() and pci_bus_speed2lnkctl2() to pci.h\n- Update dwc driver to use the shared functions\n- Rebase to v6.18-rc3.\n\nThis addresses the feedback from Lukas Wunner and Manivannan Sadhasivam\non the v3 submission, ensuring no runtime performance regression while\nachieving code reuse.\n\nChanges for v3:\nhttps://patchwork.kernel.org/project/linux-pci/patch/20250816154633.338653-1-18255117159@163.com/\n\n- Rebase to v6.17-rc1.\n- Gentle ping.\n\nChanges for v2:\n- s/PCIE_SPEED2LNKCTL2_TLS_ENC/PCIE_SPEED2LNKCTL2_TLS\n- The patch commit message were modified.\n---\n\nHans Zhang (3):\n PCI: Add public pcie_valid_speed() for shared validation\n PCI: Move pci_bus_speed2lnkctl2() to public header\n PCI: dwc: Use common speed conversion function\n\n drivers/pci/controller/dwc/pcie-designware.c | 18 +++-------------\n drivers/pci/pci.h | 22 ++++++++++++++++++++\n drivers/pci/pcie/bwctrl.c | 22 --------------------\n 3 files changed, 25 insertions(+), 37 deletions(-)\n\n\nbase-commit: 525e91d84dc085492b36d4b87abb7c1cc93fcb44"}