From patchwork Tue Aug 3 05:03:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kishon Vijay Abraham I X-Patchwork-Id: 12415345 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D059BC432BE for ; Tue, 3 Aug 2021 05:03:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AA3BA61029 for ; Tue, 3 Aug 2021 05:03:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233764AbhHCFD7 (ORCPT ); Tue, 3 Aug 2021 01:03:59 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:51332 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233758AbhHCFD6 (ORCPT ); Tue, 3 Aug 2021 01:03:58 -0400 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 17353JLr093182; Tue, 3 Aug 2021 00:03:19 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1627966999; bh=xPLECnhwE7VAbRQb07SbvYiefpvIipORqzNtsCbzOA4=; h=From:To:CC:Subject:Date; b=m+GzT8Y+oZox0RdDDVu+ZHPGV1TaQBrfwIIJ0vwLRoDpu+H8ESbz0u1bB9pCPjTmL DiTNmKYXD/KErd5DjZnyGCDxJDf8bZfl+5g5JwvyeycolFmikuDyZQCzkALDrGhYk+ WSlFSyuktjJtK/BJw77NwbjxwvJ8oNMBmLhKaZYg= Received: from DFLE100.ent.ti.com (dfle100.ent.ti.com [10.64.6.21]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 17353I6I065316 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 3 Aug 2021 00:03:18 -0500 Received: from DFLE102.ent.ti.com (10.64.6.23) by DFLE100.ent.ti.com (10.64.6.21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Tue, 3 Aug 2021 00:03:18 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DFLE102.ent.ti.com (10.64.6.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2 via Frontend Transport; Tue, 3 Aug 2021 00:03:18 -0500 Received: from a0393678-ssd.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 17353BeQ090231; Tue, 3 Aug 2021 00:03:11 -0500 From: Kishon Vijay Abraham I To: Lorenzo Pieralisi , Bjorn Helgaas , Rob Herring , Tom Joseph , Jingoo Han , Gustavo Pimentel , Marek Vasut , Yoshihiro Shimoda , Shawn Lin , Heiko Stuebner CC: Jonathan Corbet , Arnd Bergmann , Greg Kroah-Hartman , , , , , , , , , Lokesh Vutla Subject: [PATCH v7 0/7] Add SR-IOV support in PCIe Endpoint Core Date: Tue, 3 Aug 2021 10:33:03 +0530 Message-ID: <20210803050310.27122-1-kishon@ti.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Patch series *) Adds support to add virtual functions to enable endpoint controller which supports SR-IOV capability *) Add support in Cadence endpoint driver to configure virtual functions *) Enable pci_endpoint_test driver to create pci_device for virtual functions v1 of the patch series can be found at [1] v2 of the patch series can be found at [2] v3 of the patch series can be found at [3] v4 of the patch series can be found at [4] v5 of the patch series can be found at [5] v6 of the patch series can be found at [6] Here both physical functions and virtual functions use the same pci_endpoint_test driver and existing pcitest utility can be used to test virtual functions as well. Changes from v6: *) Rebased to 5.13-rc4 Changes from v5: *) Rebased to 5.13-rc1 Changes from v4: *) Added a fix in Cadence driver which was overwriting BAR configuration of physical function. *) Didn't include Tom's Acked-by since Cadence driver is modified in this revision. Changes from v3: *) Fixed Rob's comment and added his Reviewed-by as suggested by him. Changes from v2: *) Fixed DT binding documentation comment by Rob *) Fixed the error check in pci-epc-core.c Changes from v1: *) Re-based and Re-worked to latest kernel 5.10.0-rc2+ (now has generic binding for EP) [1] -> http://lore.kernel.org/r/20191231113534.30405-1-kishon@ti.com [2] -> http://lore.kernel.org/r/20201112175358.2653-1-kishon@ti.com [3] -> https://lore.kernel.org/r/20210305050410.9201-1-kishon@ti.com [4] -> http://lore.kernel.org/r/20210310160943.7606-1-kishon@ti.com [5] -> https://lore.kernel.org/r/20210419083401.31628-1-kishon@ti.com [6] -> http://lore.kernel.org/r/20210517074723.10212-1-kishon@ti.com Kishon Vijay Abraham I (7): dt-bindings: PCI: pci-ep: Add binding to specify virtual function PCI: endpoint: Add support to add virtual function in endpoint core PCI: endpoint: Add support to link a physical function to a virtual function PCI: endpoint: Add virtual function number in pci_epc ops PCI: cadence: Add support to configure virtual functions misc: pci_endpoint_test: Populate sriov_configure ops to configure SR-IOV device Documentation: PCI: endpoint/pci-endpoint-cfs: Guide to use SR-IOV .../PCI/endpoint/pci-endpoint-cfs.rst | 12 +- .../devicetree/bindings/pci/pci-ep.yaml | 7 + drivers/misc/pci_endpoint_test.c | 1 + .../pci/controller/cadence/pcie-cadence-ep.c | 285 ++++++++++++++---- drivers/pci/controller/cadence/pcie-cadence.h | 7 + .../pci/controller/dwc/pcie-designware-ep.c | 36 +-- drivers/pci/controller/pcie-rcar-ep.c | 19 +- drivers/pci/controller/pcie-rockchip-ep.c | 18 +- drivers/pci/endpoint/functions/pci-epf-ntb.c | 79 +++-- drivers/pci/endpoint/functions/pci-epf-test.c | 66 ++-- drivers/pci/endpoint/pci-ep-cfs.c | 24 ++ drivers/pci/endpoint/pci-epc-core.c | 130 +++++--- drivers/pci/endpoint/pci-epf-core.c | 144 ++++++++- include/linux/pci-epc.h | 57 ++-- include/linux/pci-epf.h | 16 +- 15 files changed, 684 insertions(+), 217 deletions(-)