From patchwork Wed Apr 5 08:52:25 2017 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: 96887 Delivered-To: patch@linaro.org Received: by 10.140.89.233 with SMTP id v96csp330043qgd; Wed, 5 Apr 2017 09:00:31 -0700 (PDT) X-Received: by 10.98.64.9 with SMTP id n9mr30375434pfa.211.1491408031325; Wed, 05 Apr 2017 09:00:31 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id i61si21010610plb.196.2017.04.05.09.00.30; Wed, 05 Apr 2017 09:00:31 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754863AbdDEIzO (ORCPT + 14 others); Wed, 5 Apr 2017 04:55:14 -0400 Received: from lelnx194.ext.ti.com ([198.47.27.80]:44318 "EHLO lelnx194.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753474AbdDEIyW (ORCPT ); Wed, 5 Apr 2017 04:54:22 -0400 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by lelnx194.ext.ti.com (8.15.1/8.15.1) with ESMTP id v358rJ7i031094; Wed, 5 Apr 2017 03:53:19 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ti.com; s=ti-com-17Q1; t=1491382399; bh=f6tdwiPubkihDA76EaMxIfsB4YYhZCi/LtXoV7DZ0M8=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=ZgQGzTKc2mQXVB5LtGz9NDYGvTe6QPwXgyYNWU4m8WZW0dBdMKKhLYcDT96dGUZn6 E7GgBGmWORUCVlnHK58+SU5CyqQfWIsTeEOQICIWkOLkVcurBfp+NsGU677YKwwnNa gD4+hXGDV58dIGs9KDCE89ipB3Q+zzaUUyOiy7Eo= Received: from DLEE70.ent.ti.com (dlee70.ent.ti.com [157.170.170.113]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id v358rJN9027378; Wed, 5 Apr 2017 03:53:19 -0500 Received: from dflp32.itg.ti.com (10.64.6.15) by DLEE70.ent.ti.com (157.170.170.113) with Microsoft SMTP Server id 14.3.294.0; Wed, 5 Apr 2017 03:53:18 -0500 Received: from a0393678ub.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp32.itg.ti.com (8.14.3/8.13.8) with ESMTP id v358qrhi012909; Wed, 5 Apr 2017 03:53:12 -0500 From: Kishon Vijay Abraham I To: Bjorn Helgaas , Joao Pinto , , , , , , CC: , , Subject: [PATCH v6 05/23] PCI: endpoint: Create configfs entry for EPC device and EPF driver Date: Wed, 5 Apr 2017 14:22:25 +0530 Message-ID: <20170405085243.18123-6-kishon@ti.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170405085243.18123-1-kishon@ti.com> References: <20170405085243.18123-1-kishon@ti.com> MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Invoke APIs provided by pci-ep-cfs to create configfs entry for every EPC device and EPF driver to help users in creating EPF device and binding the EPF device to the EPC device. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Bjorn Helgaas --- drivers/pci/endpoint/pci-epc-core.c | 4 ++++ drivers/pci/endpoint/pci-epf-core.c | 4 ++++ include/linux/pci-epc.h | 2 ++ include/linux/pci-epf.h | 2 ++ 4 files changed, 12 insertions(+) -- 2.11.0 diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c index 54b366ece844..9ae9e59b2a74 100644 --- a/drivers/pci/endpoint/pci-epc-core.c +++ b/drivers/pci/endpoint/pci-epc-core.c @@ -24,6 +24,7 @@ #include #include +#include static struct class *pci_epc_class; @@ -441,6 +442,7 @@ EXPORT_SYMBOL_GPL(pci_epc_linkup); */ void pci_epc_destroy(struct pci_epc *epc) { + pci_ep_cfs_remove_epc_group(epc->group); device_unregister(&epc->dev); kfree(epc); } @@ -507,6 +509,8 @@ __pci_epc_create(struct device *dev, const struct pci_epc_ops *ops, if (ret) goto put_dev; + epc->group = pci_ep_cfs_add_epc_group(dev_name(dev)); + return epc; put_dev: diff --git a/drivers/pci/endpoint/pci-epf-core.c b/drivers/pci/endpoint/pci-epf-core.c index 7564a29f435c..92db7dcd911c 100644 --- a/drivers/pci/endpoint/pci-epf-core.c +++ b/drivers/pci/endpoint/pci-epf-core.c @@ -24,6 +24,7 @@ #include #include +#include static struct bus_type pci_epf_bus_type; static struct device_type pci_epf_type; @@ -143,6 +144,7 @@ EXPORT_SYMBOL_GPL(pci_epf_alloc_space); */ void pci_epf_unregister_driver(struct pci_epf_driver *driver) { + pci_ep_cfs_remove_epf_group(driver->group); driver_unregister(&driver->driver); } EXPORT_SYMBOL_GPL(pci_epf_unregister_driver); @@ -172,6 +174,8 @@ int __pci_epf_register_driver(struct pci_epf_driver *driver, if (ret) return ret; + driver->group = pci_ep_cfs_add_epf_group(driver->driver.name); + return 0; } EXPORT_SYMBOL_GPL(__pci_epf_register_driver); diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h index 8c63d3c37f76..af5edbf3eea3 100644 --- a/include/linux/pci-epc.h +++ b/include/linux/pci-epc.h @@ -77,6 +77,7 @@ struct pci_epc_mem { * @ops: function pointers for performing endpoint operations * @mem: address space of the endpoint controller * @max_functions: max number of functions that can be configured in this EPC + * @group: configfs group representing the PCI EPC device * @lock: spinlock to protect pci_epc ops */ struct pci_epc { @@ -85,6 +86,7 @@ struct pci_epc { const struct pci_epc_ops *ops; struct pci_epc_mem *mem; u8 max_functions; + struct config_group *group; /* spinlock to protect against concurrent access of EP controller */ spinlock_t lock; }; diff --git a/include/linux/pci-epf.h b/include/linux/pci-epf.h index 5628714f7bcf..0d529cb90143 100644 --- a/include/linux/pci-epf.h +++ b/include/linux/pci-epf.h @@ -82,6 +82,7 @@ struct pci_epf_ops { * @driver: PCI EPF driver * @ops: set of function pointers for performing EPF operations * @owner: the owner of the module that registers the PCI EPF driver + * @group: configfs group corresponding to the PCI EPF driver * @id_table: identifies EPF devices for probing */ struct pci_epf_driver { @@ -91,6 +92,7 @@ struct pci_epf_driver { struct device_driver driver; struct pci_epf_ops *ops; struct module *owner; + struct config_group *group; const struct pci_epf_device_id *id_table; };