From mboxrd@z Thu Jan 1 00:00:00 1970 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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 8D264C433B4 for ; Mon, 17 May 2021 07:49:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 73ABB611ED for ; Mon, 17 May 2021 07:49:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233706AbhEQHug (ORCPT ); Mon, 17 May 2021 03:50:36 -0400 Received: from fllv0016.ext.ti.com ([198.47.19.142]:40588 "EHLO fllv0016.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235535AbhEQHuO (ORCPT ); Mon, 17 May 2021 03:50:14 -0400 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 14H7mbEP115682; Mon, 17 May 2021 02:48:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1621237717; bh=PswJzuVJEpo2V7rLJvAKEapfrXwbPZ/ywMR3JM+8zp4=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=YLRY+8FfTx/HoaXGt+NEz6R9M5rxLuquJUAk/sxt8tkZ9Qz7gwTMOHY3KefYswRcH HB0arP15VCWEmmlbuRFDoqobtz2sKvJ0xf5T3uQ4S7dNFslHyX9DTaUrPnDgx3uGUd WXOSae3bKDo2if4DPWO03jx4yZSuRENrTBN6grCY= Received: from DFLE104.ent.ti.com (dfle104.ent.ti.com [10.64.6.25]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 14H7mbjN008730 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 17 May 2021 02:48:37 -0500 Received: from DFLE115.ent.ti.com (10.64.6.36) by DFLE104.ent.ti.com (10.64.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Mon, 17 May 2021 02:48:36 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DFLE115.ent.ti.com (10.64.6.36) 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; Mon, 17 May 2021 02:48:36 -0500 Received: from a0393678-ssd.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 14H7lOck007607; Mon, 17 May 2021 02:48:29 -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 , , , , , , , , Kishon Vijay Abraham I , Lokesh Vutla Subject: [PATCH v6 7/7] Documentation: PCI: endpoint/pci-endpoint-cfs: Guide to use SR-IOV Date: Mon, 17 May 2021 13:17:23 +0530 Message-ID: <20210517074723.10212-8-kishon@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210517074723.10212-1-kishon@ti.com> References: <20210517074723.10212-1-kishon@ti.com> MIME-Version: 1.0 Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add Documentation to help users use PCI endpoint to create virtual functions using configfs. An endpoint function is designated as a virtual endpoint function device when it is linked to a physical endpoint function device (instead of a endpoint controller). Signed-off-by: Kishon Vijay Abraham I --- Documentation/PCI/endpoint/pci-endpoint-cfs.rst | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/Documentation/PCI/endpoint/pci-endpoint-cfs.rst b/Documentation/PCI/endpoint/pci-endpoint-cfs.rst index 696f8eeb4738..56fb33c5e8fd 100644 --- a/Documentation/PCI/endpoint/pci-endpoint-cfs.rst +++ b/Documentation/PCI/endpoint/pci-endpoint-cfs.rst @@ -43,6 +43,7 @@ entries corresponding to EPF driver will be created by the EPF core. .. / ... / ... / + ... / .. / ... / ... / @@ -68,6 +69,7 @@ created) ... subsys_vendor_id ... subsys_id ... interrupt_pin + ... / ... primary/ ... / ... secondary/ @@ -79,6 +81,13 @@ interface should be added in 'primary' directory and symlink of endpoint controller connected to secondary interface should be added in 'secondary' directory. +The directory can have a list of symbolic links +() to other . These symbolic links should +be created by the user to represent the virtual functions that are bound to +the physical function. In the above directory structure is a +physical function and is a virtual function. An EPF device once +it's linked to another EPF device, cannot be linked to a EPC device. + EPC Device ========== @@ -98,7 +107,8 @@ entries corresponding to EPC device will be created by the EPC core. The directory will have a list of symbolic links to . These symbolic links should be created by the user to -represent the functions present in the endpoint device. +represent the functions present in the endpoint device. Only +that represents a physical function can be linked to a EPC device. The directory will also have a *start* field. Once "1" is written to this field, the endpoint device will be ready to -- 2.17.1 From mboxrd@z Thu Jan 1 00:00:00 1970 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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 AF74BC433ED for ; Mon, 17 May 2021 07:51:44 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 345DA60232 for ; Mon, 17 May 2021 07:51:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 345DA60232 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=ti.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-ID:Date: Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=TXuaP1UpGrwwRmdLPo3dcED65/PUr1OJFDZthoQ2fuU=; b=JyTIIKSLcw65NjTsxtERjiX9T YyeAnaSQKqSPgK/WSPGx4qnwAAGZ7LaMLg5jLZmMUUwIWDt9lLQIC6H0JPwtGzUP0JPFmLhltQIvb pftGSjAsScFnaYvmhippZ9Y4ANtdkekMZpzM5A+EFJ6nN+fgjHNANBm3mKR7CEMx+Qk5TlvghbJXk 3ahgQGEonHkYhmw8RcznWbrG9HVWRd3Cxr8TWhLT0sBWYFhml9Q27wUqEpwEgzth0escWycJzUiYL rVvhOykpA7eJFJx/uNp3ScxGOMbZkEftnAdMfXdcKpYUrc7hHO+tGmkAh83bPpl2Ag/dTzmZ71gZ0 PtzTvRfOw==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1liY2L-00E6WA-Az; Mon, 17 May 2021 07:51:37 +0000 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1liXze-00E5cH-JP; Mon, 17 May 2021 07:48:50 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Type:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:CC:To:From:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=PswJzuVJEpo2V7rLJvAKEapfrXwbPZ/ywMR3JM+8zp4=; b=hnYhJu7DJx8/w/HJAR9t+mFCCj xTCNagaeuOJpeiB9paOLGHvOmDw9Yohvv2ylhHj4xWYURl135gNi5Q0/qkqFiv2hVEL5Eixop7Y3w FwJYDtkZoO7K/KpORigXPTIblDVJxXNgS6xDplEPKL3vzARpgS/ZvoHL8kH++pO8zSN5PaQmr6qm+ ppzRTgzLvW6XXDxE72hY27V2Ceu6sQlBIrN237YiUNRn9wub0KTNul5IH5Bs1/2TRTfvo61uSyalE DHFpI35ZYIkeLFf6GBii1OlruImnmkHkC0UwwSw50IX3iao1QD8cKK+603qarhZhC5rEAarfZKAl/ Fc7M768A==; Received: from fllv0016.ext.ti.com ([198.47.19.142]) by bombadil.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1liXzZ-00DYkV-Iu; Mon, 17 May 2021 07:48:49 +0000 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 14H7mbEP115682; Mon, 17 May 2021 02:48:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1621237717; bh=PswJzuVJEpo2V7rLJvAKEapfrXwbPZ/ywMR3JM+8zp4=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=YLRY+8FfTx/HoaXGt+NEz6R9M5rxLuquJUAk/sxt8tkZ9Qz7gwTMOHY3KefYswRcH HB0arP15VCWEmmlbuRFDoqobtz2sKvJ0xf5T3uQ4S7dNFslHyX9DTaUrPnDgx3uGUd WXOSae3bKDo2if4DPWO03jx4yZSuRENrTBN6grCY= Received: from DFLE104.ent.ti.com (dfle104.ent.ti.com [10.64.6.25]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 14H7mbjN008730 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 17 May 2021 02:48:37 -0500 Received: from DFLE115.ent.ti.com (10.64.6.36) by DFLE104.ent.ti.com (10.64.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Mon, 17 May 2021 02:48:36 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DFLE115.ent.ti.com (10.64.6.36) 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; Mon, 17 May 2021 02:48:36 -0500 Received: from a0393678-ssd.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 14H7lOck007607; Mon, 17 May 2021 02:48:29 -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 , , , , , , , , Kishon Vijay Abraham I , Lokesh Vutla Subject: [PATCH v6 7/7] Documentation: PCI: endpoint/pci-endpoint-cfs: Guide to use SR-IOV Date: Mon, 17 May 2021 13:17:23 +0530 Message-ID: <20210517074723.10212-8-kishon@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210517074723.10212-1-kishon@ti.com> References: <20210517074723.10212-1-kishon@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210517_004845_724952_2375AB52 X-CRM114-Status: GOOD ( 13.63 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Add Documentation to help users use PCI endpoint to create virtual functions using configfs. An endpoint function is designated as a virtual endpoint function device when it is linked to a physical endpoint function device (instead of a endpoint controller). Signed-off-by: Kishon Vijay Abraham I --- Documentation/PCI/endpoint/pci-endpoint-cfs.rst | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/Documentation/PCI/endpoint/pci-endpoint-cfs.rst b/Documentation/PCI/endpoint/pci-endpoint-cfs.rst index 696f8eeb4738..56fb33c5e8fd 100644 --- a/Documentation/PCI/endpoint/pci-endpoint-cfs.rst +++ b/Documentation/PCI/endpoint/pci-endpoint-cfs.rst @@ -43,6 +43,7 @@ entries corresponding to EPF driver will be created by the EPF core. .. / ... / ... / + ... / .. / ... / ... / @@ -68,6 +69,7 @@ created) ... subsys_vendor_id ... subsys_id ... interrupt_pin + ... / ... primary/ ... / ... secondary/ @@ -79,6 +81,13 @@ interface should be added in 'primary' directory and symlink of endpoint controller connected to secondary interface should be added in 'secondary' directory. +The directory can have a list of symbolic links +() to other . These symbolic links should +be created by the user to represent the virtual functions that are bound to +the physical function. In the above directory structure is a +physical function and is a virtual function. An EPF device once +it's linked to another EPF device, cannot be linked to a EPC device. + EPC Device ========== @@ -98,7 +107,8 @@ entries corresponding to EPC device will be created by the EPC core. The directory will have a list of symbolic links to . These symbolic links should be created by the user to -represent the functions present in the endpoint device. +represent the functions present in the endpoint device. Only +that represents a physical function can be linked to a EPC device. The directory will also have a *start* field. Once "1" is written to this field, the endpoint device will be ready to -- 2.17.1 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip From mboxrd@z Thu Jan 1 00:00:00 1970 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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 51872C433ED for ; Mon, 17 May 2021 07:54:52 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CC818601FA for ; Mon, 17 May 2021 07:54:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CC818601FA Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=ti.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-ID:Date: Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=JjNgH48zOYcNVh7Fxg/RRWiTOCw957MDr5ysDfcxChg=; b=TMDL/ILEXgpEYM6b+i3GcKIfo UEgRgTO1Z9+x+1UsdiS/ifUnCe5mIU8X91C+KnzF8xZUsPQ8Vfd23soTilxluKUX7gaQammiBA5mR pKgk7MmXPLZ2hjPfLb6MHC0PCytuHkQuvz3d2V0EwEkwNcQ7luz41PaSMRcVAauO5nPh5mA3REQXV JNJHL0r1SyUH+kZDOtYt96M2fVdWeJ0iJ4rGBIvtc0fhSEScM1jVZTOJ4Mnrqi5xHa5GwQ88xi2hq xHG5rxTBnIXkqqx8+7nQ9A0zXc6CtKWJ3YzAPJoGG8mIXI+ox+p6bo7awDM323slFNl9DTvlJ7nQr 5RqgJ6cSg==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1liY2U-00E6aF-OY; Mon, 17 May 2021 07:51:48 +0000 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1liXze-00E5cH-JP; Mon, 17 May 2021 07:48:50 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Type:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:CC:To:From:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=PswJzuVJEpo2V7rLJvAKEapfrXwbPZ/ywMR3JM+8zp4=; b=hnYhJu7DJx8/w/HJAR9t+mFCCj xTCNagaeuOJpeiB9paOLGHvOmDw9Yohvv2ylhHj4xWYURl135gNi5Q0/qkqFiv2hVEL5Eixop7Y3w FwJYDtkZoO7K/KpORigXPTIblDVJxXNgS6xDplEPKL3vzARpgS/ZvoHL8kH++pO8zSN5PaQmr6qm+ ppzRTgzLvW6XXDxE72hY27V2Ceu6sQlBIrN237YiUNRn9wub0KTNul5IH5Bs1/2TRTfvo61uSyalE DHFpI35ZYIkeLFf6GBii1OlruImnmkHkC0UwwSw50IX3iao1QD8cKK+603qarhZhC5rEAarfZKAl/ Fc7M768A==; Received: from fllv0016.ext.ti.com ([198.47.19.142]) by bombadil.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1liXzZ-00DYkV-Iu; Mon, 17 May 2021 07:48:49 +0000 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 14H7mbEP115682; Mon, 17 May 2021 02:48:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1621237717; bh=PswJzuVJEpo2V7rLJvAKEapfrXwbPZ/ywMR3JM+8zp4=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=YLRY+8FfTx/HoaXGt+NEz6R9M5rxLuquJUAk/sxt8tkZ9Qz7gwTMOHY3KefYswRcH HB0arP15VCWEmmlbuRFDoqobtz2sKvJ0xf5T3uQ4S7dNFslHyX9DTaUrPnDgx3uGUd WXOSae3bKDo2if4DPWO03jx4yZSuRENrTBN6grCY= Received: from DFLE104.ent.ti.com (dfle104.ent.ti.com [10.64.6.25]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 14H7mbjN008730 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 17 May 2021 02:48:37 -0500 Received: from DFLE115.ent.ti.com (10.64.6.36) by DFLE104.ent.ti.com (10.64.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Mon, 17 May 2021 02:48:36 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DFLE115.ent.ti.com (10.64.6.36) 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; Mon, 17 May 2021 02:48:36 -0500 Received: from a0393678-ssd.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 14H7lOck007607; Mon, 17 May 2021 02:48:29 -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 , , , , , , , , Kishon Vijay Abraham I , Lokesh Vutla Subject: [PATCH v6 7/7] Documentation: PCI: endpoint/pci-endpoint-cfs: Guide to use SR-IOV Date: Mon, 17 May 2021 13:17:23 +0530 Message-ID: <20210517074723.10212-8-kishon@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210517074723.10212-1-kishon@ti.com> References: <20210517074723.10212-1-kishon@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210517_004845_724952_2375AB52 X-CRM114-Status: GOOD ( 13.63 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add Documentation to help users use PCI endpoint to create virtual functions using configfs. An endpoint function is designated as a virtual endpoint function device when it is linked to a physical endpoint function device (instead of a endpoint controller). Signed-off-by: Kishon Vijay Abraham I --- Documentation/PCI/endpoint/pci-endpoint-cfs.rst | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/Documentation/PCI/endpoint/pci-endpoint-cfs.rst b/Documentation/PCI/endpoint/pci-endpoint-cfs.rst index 696f8eeb4738..56fb33c5e8fd 100644 --- a/Documentation/PCI/endpoint/pci-endpoint-cfs.rst +++ b/Documentation/PCI/endpoint/pci-endpoint-cfs.rst @@ -43,6 +43,7 @@ entries corresponding to EPF driver will be created by the EPF core. .. / ... / ... / + ... / .. / ... / ... / @@ -68,6 +69,7 @@ created) ... subsys_vendor_id ... subsys_id ... interrupt_pin + ... / ... primary/ ... / ... secondary/ @@ -79,6 +81,13 @@ interface should be added in 'primary' directory and symlink of endpoint controller connected to secondary interface should be added in 'secondary' directory. +The directory can have a list of symbolic links +() to other . These symbolic links should +be created by the user to represent the virtual functions that are bound to +the physical function. In the above directory structure is a +physical function and is a virtual function. An EPF device once +it's linked to another EPF device, cannot be linked to a EPC device. + EPC Device ========== @@ -98,7 +107,8 @@ entries corresponding to EPC device will be created by the EPC core. The directory will have a list of symbolic links to . These symbolic links should be created by the user to -represent the functions present in the endpoint device. +represent the functions present in the endpoint device. Only +that represents a physical function can be linked to a EPC device. The directory will also have a *start* field. Once "1" is written to this field, the endpoint device will be ready to -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel