From patchwork Thu Jun 13 07:13:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Changqi Lu X-Patchwork-Id: 13696205 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 CFABBC27C4F for ; Thu, 13 Jun 2024 07:14:35 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sHeeu-0007aB-HP; Thu, 13 Jun 2024 03:14:08 -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 1sHees-0007ZQ-QD for qemu-devel@nongnu.org; Thu, 13 Jun 2024 03:14:06 -0400 Received: from mail-pl1-x62c.google.com ([2607:f8b0:4864:20::62c]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sHeer-00078N-63 for qemu-devel@nongnu.org; Thu, 13 Jun 2024 03:14:06 -0400 Received: by mail-pl1-x62c.google.com with SMTP id d9443c01a7336-1f70c457823so5698465ad.3 for ; Thu, 13 Jun 2024 00:14:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1718262844; x=1718867644; 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=LacZkfFTIs+WwWhTp32Cf6oxkrCggAGRd8oJ1DAZ4Jg=; b=AZSgxLVe5ezMG17JEOlG7M3wI+XxkwPqYcm9TzHrWLPvGU1P7r5OS7qUH6z2DlB8PN HuKoKGKbONX1TFfyMhgWOjvVsj2XPjtncGtoBTFHpbMRzNmSCnj7dREU+hq/IJCABYcX okeqZhePwuTf2FhTlbJaR/lIK2nBg4kuYV07KjA+XXwsEbxooepf24NTRr5RKPNPLjpf YjkGTlFyrH5vECzDgkbItn9UzMz1Ye32C8a/NaNgnKQQZNZaJnSIMtbBTGEjdoelcocU v8MJCvkpaHs3adZOHfmVzvNEf6k4KajEX5QQ3HTWJIPmF/O462T1ErXK/DAh3m7zKPJ0 sfeQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718262844; x=1718867644; 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=LacZkfFTIs+WwWhTp32Cf6oxkrCggAGRd8oJ1DAZ4Jg=; b=MgxU+t1htZILq+Vtc9pdWvtMjy18rJf86EVouA04AzMdLt7o09rF/JYlf2sGRkKFPG ZhWlkj8AkaJZ2o24qfGeTYVLtl+/VS/upO1I6nUVwUmxsXVtyT+oVv2O5O6fjAPcyYWu gbf6Luk80g12/nNohhLmTRjICp1fIJkPy+4KcoZYCxw9kyNfE/U46dvWL4FK8DTgv3t1 PtnjlDMeHVqNfRU1QNmzPoOVOA0VXW6KEOqbwdtvJeo6R6g/Iud+jeIY8cF68wV2pnbC wptMYjEZRIBsKiockvTkvw+1y/T7TII6L/5rid8CSm/pXMM5g7g6ptox6MhJzVygDgX/ aqMA== X-Forwarded-Encrypted: i=1; AJvYcCWmwylCB36TWHhLDCg+/La5VAk8YD7uWXKXDDeeIAAC4SiHGICmF5yRdOFStJoBV9g8eW/C4GFiObDrTxyfDlTTrByfDp8= X-Gm-Message-State: AOJu0YxWc1KF2NAEyGTcZUmx+vHe+2+rCenwQMgEkD+JLqRRv6e5MIPh JEv+DZZh5Iv5NOqSu/iTJLOBn14ZHs3CMv80eQ8p5LcEWoj51bU6D9b5gFyFIic= X-Google-Smtp-Source: AGHT+IF/ogoThB7jbiIV93HTc+u7mBTyldLlKjrOmmXkKad2i7/HW2lLLSs4qQ3Vu1JJFTbXTD+VJg== X-Received: by 2002:a17:902:e5c6:b0:1f7:55e:1be with SMTP id d9443c01a7336-1f83b6c7062mr48341305ad.41.1718262843909; Thu, 13 Jun 2024 00:14:03 -0700 (PDT) Received: from n37-006-243.byted.org ([180.184.84.173]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1f855ee6e7esm6378345ad.139.2024.06.13.00.14.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Jun 2024 00:14:03 -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 v6 07/10] hw/nvme: add helper functions for converting reservation types Date: Thu, 13 Jun 2024 15:13:24 +0800 Message-Id: <20240613071327.2498953-8-luchangqi.123@bytedance.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20240613071327.2498953-1-luchangqi.123@bytedance.com> References: <20240613071327.2498953-1-luchangqi.123@bytedance.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::62c; envelope-from=luchangqi.123@bytedance.com; helo=mail-pl1-x62c.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 reservation types used in the NVME protocol and those used in the block layer. Reviewed-by: Stefan Hajnoczi Signed-off-by: Changqi Lu Signed-off-by: zhenwei pi --- hw/nvme/nvme.h | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) diff --git a/hw/nvme/nvme.h b/hw/nvme/nvme.h index bed8191bd5..b1ad27c8f2 100644 --- a/hw/nvme/nvme.h +++ b/hw/nvme/nvme.h @@ -474,6 +474,86 @@ static inline const char *nvme_io_opc_str(uint8_t opc) } } +static inline NvmeResvType block_pr_type_to_nvme(BlockPrType type) +{ + switch (type) { + case BLK_PR_WRITE_EXCLUSIVE: + return NVME_RESV_WRITE_EXCLUSIVE; + case BLK_PR_EXCLUSIVE_ACCESS: + return NVME_RESV_EXCLUSIVE_ACCESS; + case BLK_PR_WRITE_EXCLUSIVE_REGS_ONLY: + return NVME_RESV_WRITE_EXCLUSIVE_REGS_ONLY; + case BLK_PR_EXCLUSIVE_ACCESS_REGS_ONLY: + return NVME_RESV_EXCLUSIVE_ACCESS_REGS_ONLY; + case BLK_PR_WRITE_EXCLUSIVE_ALL_REGS: + return NVME_RESV_WRITE_EXCLUSIVE_ALL_REGS; + case BLK_PR_EXCLUSIVE_ACCESS_ALL_REGS: + return NVME_RESV_EXCLUSIVE_ACCESS_ALL_REGS; + } + + return 0; +} + +static inline BlockPrType nvme_pr_type_to_block(NvmeResvType type) +{ + switch (type) { + case NVME_RESV_WRITE_EXCLUSIVE: + return BLK_PR_WRITE_EXCLUSIVE; + case NVME_RESV_EXCLUSIVE_ACCESS: + return BLK_PR_EXCLUSIVE_ACCESS; + case NVME_RESV_WRITE_EXCLUSIVE_REGS_ONLY: + return BLK_PR_WRITE_EXCLUSIVE_REGS_ONLY; + case NVME_RESV_EXCLUSIVE_ACCESS_REGS_ONLY: + return BLK_PR_EXCLUSIVE_ACCESS_REGS_ONLY; + case NVME_RESV_WRITE_EXCLUSIVE_ALL_REGS: + return BLK_PR_WRITE_EXCLUSIVE_ALL_REGS; + case NVME_RESV_EXCLUSIVE_ACCESS_ALL_REGS: + return BLK_PR_EXCLUSIVE_ACCESS_ALL_REGS; + } + + return 0; +} + +static inline uint8_t nvme_pr_cap_to_block(uint16_t nvme_pr_cap) +{ + uint8_t res = 0; + + res |= (nvme_pr_cap & NVME_PR_CAP_WR_EX) ? + BLK_PR_CAP_WR_EX : 0; + res |= (nvme_pr_cap & NVME_PR_CAP_EX_AC) ? + BLK_PR_CAP_EX_AC : 0; + res |= (nvme_pr_cap & NVME_PR_CAP_WR_EX_RO) ? + BLK_PR_CAP_WR_EX_RO : 0; + res |= (nvme_pr_cap & NVME_PR_CAP_EX_AC_RO) ? + BLK_PR_CAP_EX_AC_RO : 0; + res |= (nvme_pr_cap & NVME_PR_CAP_WR_EX_AR) ? + BLK_PR_CAP_WR_EX_AR : 0; + res |= (nvme_pr_cap & NVME_PR_CAP_EX_AC_AR) ? + BLK_PR_CAP_EX_AC_AR : 0; + + return res; +} + +static inline uint8_t block_pr_cap_to_nvme(uint8_t block_pr_cap) +{ + uint16_t res = 0; + + res |= (block_pr_cap & BLK_PR_CAP_WR_EX) ? + NVME_PR_CAP_WR_EX : 0; + res |= (block_pr_cap & BLK_PR_CAP_EX_AC) ? + NVME_PR_CAP_EX_AC : 0; + res |= (block_pr_cap & BLK_PR_CAP_WR_EX_RO) ? + NVME_PR_CAP_WR_EX_RO : 0; + res |= (block_pr_cap & BLK_PR_CAP_EX_AC_RO) ? + NVME_PR_CAP_EX_AC_RO : 0; + res |= (block_pr_cap & BLK_PR_CAP_WR_EX_AR) ? + NVME_PR_CAP_WR_EX_AR : 0; + res |= (block_pr_cap & BLK_PR_CAP_EX_AC_AR) ? + NVME_PR_CAP_EX_AC_AR : 0; + + return res; +} + typedef struct NvmeSQueue { struct NvmeCtrl *ctrl; uint16_t sqid;