From patchwork Thu Jun 6 12:24:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Changqi Lu X-Patchwork-Id: 13688410 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A70E3C27C55 for ; Thu, 6 Jun 2024 12:26:28 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sFCBC-0005Hg-PC; Thu, 06 Jun 2024 08:25:18 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sFCBB-0005EU-4u for qemu-devel@nongnu.org; Thu, 06 Jun 2024 08:25:17 -0400 Received: from mail-pg1-x52a.google.com ([2607:f8b0:4864:20::52a]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sFCB9-0007Wf-Ar for qemu-devel@nongnu.org; Thu, 06 Jun 2024 08:25:16 -0400 Received: by mail-pg1-x52a.google.com with SMTP id 41be03b00d2f7-6ce533b643dso615214a12.3 for ; Thu, 06 Jun 2024 05:25:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1717676713; x=1718281513; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=zLkwjmAys5Ra1hLbRsNe5mSovRHzzADAGuNQz2QELRM=; b=aMu3//mFRMcffaePMPcA4w/A3MsGo5RPwgopwCCvHGhJYhBAP3ZgJS90cDGHGDrY4C qURogKnzMu19bW0aOz0aPz7+tD1kPkE+S9UlIUO5gcEffIyLLVM48RPsqEnI61GMF6FY SPg4cNxbfes2RDzs00oCGPWbpNLrSxO0Z6sVHQHO8hJ68K3IBes2kjCmUJn51VuxldTe +8hfR2wEEOTHRhmJwZEENHQjGSvw7Le1HGLyLRWEs/FK8sG7SSa2T7Duh8MKhgKqxrdI PmlaVatSkNyn43jY2nA4CdUD1oKM73J3EJspMwPxDaMwz/eRtCpuX9NXIv4Ej2viUUgY 6voA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1717676713; x=1718281513; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=zLkwjmAys5Ra1hLbRsNe5mSovRHzzADAGuNQz2QELRM=; b=VnqGtCEaRIdCO8mRAznprqdpOXWFZqZlxh1t2ChpbwDK4h6SZIrh57z4u2jmNwbiq9 WP/9DOb20tT9q4vLWlCQ024pVgXV5lNnMfvA+SW59BGT8t2+08PaGDT7YAvfMqF4+TRu bir1OYnppmOJX4uG3NXraBb5KVIAR6BqLGAp/kIb36JzrK0OV5A+eIHUKFGNAp3Rj/f+ 1Cjn/0HDnTZrMgAL9PFnjQ3/z+LoZpqTIrYyw1g4mrgLEldIpouavOr35KYttY4YZzPq jPSrMInEE4EE7409IDo7CJ7kPjGeNy9HHobeObQuzavdtlkxtR0lGW12EhfoNS1trjhi Qpkg== X-Forwarded-Encrypted: i=1; AJvYcCXilk8Cc5xeGQefUSYcWyJ5ozaU3Sb//LPM4kPt1ptCTG8/zUT0MC+MKLl+4/qBpxFZntSBa4AfuFVLBl8T/Cddhw/2f3w= X-Gm-Message-State: AOJu0YyPbZxa84xmBGhGZmwgMST9AbDoJOkGpAZR9i+H6CQ0ahHIMp4z ytHcSncYrCHPA6chrwTv2KzAjDstnmKHOP96O2Uiaxfl2JI9kUG1X6X90yBQ4Vo= X-Google-Smtp-Source: AGHT+IExPLbYRNSnSGBw6IGENJnB9PwGNwhL2ulcu3NrJW0w2yqg5Z+fG5NR9UmXVDhjaKTjX9iLBg== X-Received: by 2002:a05:6a20:3949:b0:1b2:6b27:5cac with SMTP id adf61e73a8af0-1b2b747e627mr6107724637.32.1717676713561; Thu, 06 Jun 2024 05:25:13 -0700 (PDT) Received: from n37-006-243.byted.org ([180.184.51.142]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2c29c20d7adsm1459396a91.9.2024.06.06.05.25.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Jun 2024 05:25:13 -0700 (PDT) From: Changqi Lu To: qemu-block@nongnu.org, qemu-devel@nongnu.org Cc: kwolf@redhat.com, hreitz@redhat.com, stefanha@redhat.com, fam@euphon.net, ronniesahlberg@gmail.com, pbonzini@redhat.com, pl@dlhnet.de, kbusch@kernel.org, its@irrelevant.dk, foss@defmacro.it, philmd@linaro.org, pizhenwei@bytedance.com, Changqi Lu Subject: [PATCH v5 04/10] scsi/util: add helper functions for persistent reservation types conversion Date: Thu, 6 Jun 2024 20:24:38 +0800 Message-Id: <20240606122444.2914576-5-luchangqi.123@bytedance.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20240606122444.2914576-1-luchangqi.123@bytedance.com> References: <20240606122444.2914576-1-luchangqi.123@bytedance.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::52a; envelope-from=luchangqi.123@bytedance.com; helo=mail-pg1-x52a.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org This commit introduces two helper functions that facilitate the conversion between the persistent reservation types used in the SCSI protocol and those used in the block layer. Signed-off-by: Changqi Lu Signed-off-by: zhenwei pi --- include/scsi/utils.h | 8 +++++ scsi/utils.c | 81 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 89 insertions(+) diff --git a/include/scsi/utils.h b/include/scsi/utils.h index d5c8efa16e..89a0b082fb 100644 --- a/include/scsi/utils.h +++ b/include/scsi/utils.h @@ -1,6 +1,8 @@ #ifndef SCSI_UTILS_H #define SCSI_UTILS_H +#include "block/block-common.h" +#include "scsi/constants.h" #ifdef CONFIG_LINUX #include #endif @@ -135,6 +137,12 @@ uint32_t scsi_data_cdb_xfer(uint8_t *buf); uint32_t scsi_cdb_xfer(uint8_t *buf); int scsi_cdb_length(uint8_t *buf); +BlockPrType scsi_pr_type_to_block(SCSIPrType type); +SCSIPrType block_pr_type_to_scsi(BlockPrType type); + +uint8_t scsi_pr_cap_to_block(uint16_t scsi_pr_cap); +uint16_t block_pr_cap_to_scsi(uint8_t block_pr_cap); + /* Linux SG_IO interface. */ #ifdef CONFIG_LINUX #define SG_ERR_DRIVER_TIMEOUT 0x06 diff --git a/scsi/utils.c b/scsi/utils.c index 357b036671..0dfdeb499d 100644 --- a/scsi/utils.c +++ b/scsi/utils.c @@ -658,3 +658,84 @@ int scsi_sense_from_host_status(uint8_t host_status, } return GOOD; } + +BlockPrType scsi_pr_type_to_block(SCSIPrType type) +{ + switch (type) { + case SCSI_PR_WRITE_EXCLUSIVE: + return BLK_PR_WRITE_EXCLUSIVE; + case SCSI_PR_EXCLUSIVE_ACCESS: + return BLK_PR_EXCLUSIVE_ACCESS; + case SCSI_PR_WRITE_EXCLUSIVE_REGS_ONLY: + return BLK_PR_WRITE_EXCLUSIVE_REGS_ONLY; + case SCSI_PR_EXCLUSIVE_ACCESS_REGS_ONLY: + return BLK_PR_EXCLUSIVE_ACCESS_REGS_ONLY; + case SCSI_PR_WRITE_EXCLUSIVE_ALL_REGS: + return BLK_PR_WRITE_EXCLUSIVE_ALL_REGS; + case SCSI_PR_EXCLUSIVE_ACCESS_ALL_REGS: + return BLK_PR_EXCLUSIVE_ACCESS_ALL_REGS; + } + + return 0; +} + +SCSIPrType block_pr_type_to_scsi(BlockPrType type) +{ + switch (type) { + case BLK_PR_WRITE_EXCLUSIVE: + return SCSI_PR_WRITE_EXCLUSIVE; + case BLK_PR_EXCLUSIVE_ACCESS: + return SCSI_PR_EXCLUSIVE_ACCESS; + case BLK_PR_WRITE_EXCLUSIVE_REGS_ONLY: + return SCSI_PR_WRITE_EXCLUSIVE_REGS_ONLY; + case BLK_PR_EXCLUSIVE_ACCESS_REGS_ONLY: + return SCSI_PR_EXCLUSIVE_ACCESS_REGS_ONLY; + case BLK_PR_WRITE_EXCLUSIVE_ALL_REGS: + return SCSI_PR_WRITE_EXCLUSIVE_ALL_REGS; + case BLK_PR_EXCLUSIVE_ACCESS_ALL_REGS: + return SCSI_PR_EXCLUSIVE_ACCESS_ALL_REGS; + } + + return 0; +} + + +uint8_t scsi_pr_cap_to_block(uint16_t scsi_pr_cap) +{ + uint8_t res = 0; + + res |= (scsi_pr_cap & SCSI_PR_CAP_WR_EX) ? + BLK_PR_CAP_WR_EX : 0; + res |= (scsi_pr_cap & SCSI_PR_CAP_EX_AC) ? + BLK_PR_CAP_EX_AC : 0; + res |= (scsi_pr_cap & SCSI_PR_CAP_WR_EX_RO) ? + BLK_PR_CAP_WR_EX_RO : 0; + res |= (scsi_pr_cap & SCSI_PR_CAP_EX_AC_RO) ? + BLK_PR_CAP_EX_AC_RO : 0; + res |= (scsi_pr_cap & SCSI_PR_CAP_WR_EX_AR) ? + BLK_PR_CAP_WR_EX_AR : 0; + res |= (scsi_pr_cap & SCSI_PR_CAP_EX_AC_AR) ? + BLK_PR_CAP_EX_AC_AR : 0; + + return res; +} + +uint16_t block_pr_cap_to_scsi(uint8_t block_pr_cap) +{ + uint16_t res = 0; + + res |= (block_pr_cap & BLK_PR_CAP_WR_EX) ? + SCSI_PR_CAP_WR_EX : 0; + res |= (block_pr_cap & BLK_PR_CAP_EX_AC) ? + SCSI_PR_CAP_EX_AC : 0; + res |= (block_pr_cap & BLK_PR_CAP_WR_EX_RO) ? + SCSI_PR_CAP_WR_EX_RO : 0; + res |= (block_pr_cap & BLK_PR_CAP_EX_AC_RO) ? + SCSI_PR_CAP_EX_AC_RO : 0; + res |= (block_pr_cap & BLK_PR_CAP_WR_EX_AR) ? + SCSI_PR_CAP_WR_EX_AR : 0; + res |= (block_pr_cap & BLK_PR_CAP_EX_AC_AR) ? + SCSI_PR_CAP_EX_AC_AR : 0; + + return res; +}