From patchwork Wed May 12 14:37:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dongdong Liu X-Patchwork-Id: 12253955 X-Patchwork-Delegate: bhelgaas@google.com 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 E9A1AC43462 for ; Wed, 12 May 2021 14:37:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B74FB613BF for ; Wed, 12 May 2021 14:37:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231254AbhELOi7 (ORCPT ); Wed, 12 May 2021 10:38:59 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:2492 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230398AbhELOi4 (ORCPT ); Wed, 12 May 2021 10:38:56 -0400 Received: from dggeme758-chm.china.huawei.com (unknown [172.30.72.56]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4FgHPx40nHzYh4K; Wed, 12 May 2021 22:35:17 +0800 (CST) Received: from SZX1000464847.huawei.com (10.21.59.169) by dggeme758-chm.china.huawei.com (10.3.19.104) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Wed, 12 May 2021 22:37:45 +0800 From: Dongdong Liu To: , , , , CC: , Subject: [PATCH V3 3/6] PCI: Add 10-Bit Tag register definitions Date: Wed, 12 May 2021 22:37:34 +0800 Message-ID: <20210512143737.42352-4-liudongdong3@huawei.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512143737.42352-1-liudongdong3@huawei.com> References: <20210512143737.42352-1-liudongdong3@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.21.59.169] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To dggeme758-chm.china.huawei.com (10.3.19.104) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Add 10-Bit Tag register definitions for use in subsequen patches. See the PCIe 5.0 spec section 7.5.3.15 and 9.3.3.2. Signed-off-by: Dongdong Liu --- include/uapi/linux/pci_regs.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h index e709ae8..cf1ddb8 100644 --- a/include/uapi/linux/pci_regs.h +++ b/include/uapi/linux/pci_regs.h @@ -648,6 +648,8 @@ #define PCI_EXP_DEVCAP2_ATOMIC_COMP64 0x00000100 /* 64b AtomicOp completion */ #define PCI_EXP_DEVCAP2_ATOMIC_COMP128 0x00000200 /* 128b AtomicOp completion */ #define PCI_EXP_DEVCAP2_LTR 0x00000800 /* Latency tolerance reporting */ +#define PCI_EXP_DEVCAP2_10BIT_TAG_COMP 0x00010000 /* 10-Bit Tag Completer Supported */ +#define PCI_EXP_DEVCAP2_10BIT_TAG_REQ 0x00020000 /* 10-Bit Tag Requester Supported */ #define PCI_EXP_DEVCAP2_OBFF_MASK 0x000c0000 /* OBFF support mechanism */ #define PCI_EXP_DEVCAP2_OBFF_MSG 0x00040000 /* New message signaling */ #define PCI_EXP_DEVCAP2_OBFF_WAKE 0x00080000 /* Re-use WAKE# for OBFF */ @@ -661,6 +663,7 @@ #define PCI_EXP_DEVCTL2_IDO_REQ_EN 0x0100 /* Allow IDO for requests */ #define PCI_EXP_DEVCTL2_IDO_CMP_EN 0x0200 /* Allow IDO for completions */ #define PCI_EXP_DEVCTL2_LTR_EN 0x0400 /* Enable LTR mechanism */ +#define PCI_EXP_DEVCTL2_10BIT_TAG_REQ_EN 0x1000 /* 10-Bit Tag Requester Enable */ #define PCI_EXP_DEVCTL2_OBFF_MSGA_EN 0x2000 /* Enable OBFF Message type A */ #define PCI_EXP_DEVCTL2_OBFF_MSGB_EN 0x4000 /* Enable OBFF Message type B */ #define PCI_EXP_DEVCTL2_OBFF_WAKE_EN 0x6000 /* OBFF using WAKE# signaling */ @@ -931,6 +934,7 @@ /* Single Root I/O Virtualization */ #define PCI_SRIOV_CAP 0x04 /* SR-IOV Capabilities */ #define PCI_SRIOV_CAP_VFM 0x00000001 /* VF Migration Capable */ +#define PCI_SRIOV_CAP_VF_10BIT_TAG_REQ 0x00000004 /* VF 10-Bit Tag Requester Supported */ #define PCI_SRIOV_CAP_INTR(x) ((x) >> 21) /* Interrupt Message Number */ #define PCI_SRIOV_CTRL 0x08 /* SR-IOV Control */ #define PCI_SRIOV_CTRL_VFE 0x0001 /* VF Enable */ @@ -938,6 +942,7 @@ #define PCI_SRIOV_CTRL_INTR 0x0004 /* VF Migration Interrupt Enable */ #define PCI_SRIOV_CTRL_MSE 0x0008 /* VF Memory Space Enable */ #define PCI_SRIOV_CTRL_ARI 0x0010 /* ARI Capable Hierarchy */ +#define PCI_SRIOV_CTRL_VF_10BIT_TAG_REQ_EN 0x0020 /* VF 10-Bit Tag Requester Enable */ #define PCI_SRIOV_STATUS 0x0a /* SR-IOV Status */ #define PCI_SRIOV_STATUS_VFM 0x0001 /* VF Migration Status */ #define PCI_SRIOV_INITIAL_VF 0x0c /* Initial VFs */