From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f180.google.com (mail-pl1-f180.google.com [209.85.214.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DA59625C6EE for ; Wed, 31 Dec 2025 23:51:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.180 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767225100; cv=none; b=e5g9TL1T0qDwBcaJP4pRQ/hjUOhTyXgbCLsXWKAMYAsL+tM09/bC7noJn/NQeZieOigqzk9Z8UJ0s8rRWtUnTjxU6VdXCwgwubr/n0vJo/nyl4dXCNUe0cknBtV3TtthdXm1jVui88NsxagcN38jRCuscb6KOLZf8g/aVFXGzho= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767225100; c=relaxed/simple; bh=Dh+NuU02iuZowlfgk6G8yuK6dkmsveV5cRd3Rl2wKmk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=iuFjf7H3HoBToOaMPZgR/WuWc7kR+nZKOCqLWzTYEJEw48jFLxeQFiGOZJN8KvZbKZFp9lDMAKEC5vM1S58C0jHGHLFtmMUQHZ+VNAqCpGDAwEv+H5MtfhAw+K/9txUv2RQe87364r0JWMsPGNjYe+bKyUJFQftbeNfAohElv50= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=purestorage.com; spf=fail smtp.mailfrom=purestorage.com; dkim=pass (2048-bit key) header.d=purestorage.com header.i=@purestorage.com header.b=MxGls5DY; arc=none smtp.client-ip=209.85.214.180 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=purestorage.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=purestorage.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=purestorage.com header.i=@purestorage.com header.b="MxGls5DY" Received: by mail-pl1-f180.google.com with SMTP id d9443c01a7336-2a0d67f1877so144166415ad.2 for ; Wed, 31 Dec 2025 15:51:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=purestorage.com; s=google2022; t=1767225098; x=1767829898; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=r++fjGqWkxDZfVCNhZlStzMaDRIbaljNb2IsrD6Hxf8=; b=MxGls5DYBSJwgLFumViJbTdHsm2XVWdqaGPw4c9oKii+slub+kQBnSH+4UuoNy16wz f6+CywQxiUezeBmyqFfbo05cJQ4uI+owhuxlEuCcwzu0XqrMzy0hZLaUWV75VdrmGpiC GA9NrvWqfaO6sYT/Cho+fwckn88hw/zXCYqqKGm8BJv5lGISMusgAo+GrOxzlsUfcH+d rvtRGqDC+QR5XrgqsRGX5Tdlj6H0BdUy5YLru1E9B6yx0dSrXgK2eU/TFo4GH8emZN/8 yPzmcWaNiRTKR5pMbLjUKXE6gKdDLEZIfAZTyqoD4ynGKgDX9YXvrAx726NN0loL9tH8 qX5w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767225098; x=1767829898; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=r++fjGqWkxDZfVCNhZlStzMaDRIbaljNb2IsrD6Hxf8=; b=gED/yKLfC23HsJEKmwEEfxdxlJIhYQgMRWEYlT1Oq1LvkpXHFHA7QM7eyjLMZpCMEJ 3mw5oOPbxhR/P8wtJMWofdslurzSqmEdN8WZ0w18XgJHEufQqfdrNcyySFgyyn6OwNYo nA24blUMnLXoU9GXijj9enr8WVCPVw7LC6mgwOxqKROlBY+Fu1cM0wJ4SqW92wjRijYX fkuHEac1OnhicLn8kAFqWi5ulacZ05bEe9rw2nrsuh2Cz4MPQwx7TQ6DDiqazKR0S6nj trp/8LGYN8JKNzSUffxxXjiT2UuVh4erQw421e/KxpBGXgup4IeZ1BaRNMUc9C7y1TH0 IpBQ== X-Forwarded-Encrypted: i=1; AJvYcCV1teizF6tefsTsU3kHmFMNBm5Qxe4drbTCMQqr2YXOS+lD6HDz/iufIdrwCfUR+q/1+I5Cku/VLyqJe6s=@vger.kernel.org X-Gm-Message-State: AOJu0YyE6HclORZxMyyYsB6gBqpuQEzVO+31h0zrz1yY7Q9+gPuWdZYV Cp1GO27U0JvlwfFhGVWLB2iBl+Qj7BLxhvzRrp2PX31En1c4jMPbVSK0mFsyWOskd4k= X-Gm-Gg: AY/fxX6LlYrJyB+y/OFm+6YKAkh9Uacpd6mbG2s79qfn+PQT6OWHfqsVZygLYOY4gQp 3bsWq/MTKTVpfHkpeDar8XUdNkdF4M1Uix21TaTcYAGkiKxbw41tIoI1XZ01OpLdj6FeRtVPlVh sVPg17DMc6jTFW8dpNh4uoS4i7HNb3LUr7wQuBIACLLtKK/e5VK2vxnmVdWfFBpp1dvSZxnqTP5 6GDc1hrJqwz0AGhV7ZNJ64iCnproOAlHTz1ckpwAlbnvVYiEOEfmstvAmes6rfJuJRjJHnl4ZN/ xVbb4cyovn4CbwdyK25H5gihbF3H9uCMQ5rOtpZ7vZv1bPSuXPLWbm6O6D541JDMEuZ8sC3A18X qxpQcXWweiJwIdS1X3+ADneENpmc+kfTuEIeIwa3yA8HGgDv2SCqeVj/K2YR2BYc23df4UYMRqG 3eJj82ssV/IeB8++Zx5HSy72qhFpXHBFU= X-Google-Smtp-Source: AGHT+IHOGyDDmKp/WTk96LD/9LH6/uN6yMkmUbuyV8AbfWjQILaAbhHRsxCcaON8ZmhPdTNUck4PKw== X-Received: by 2002:a05:7023:883:b0:11d:f890:6751 with SMTP id a92af1059eb24-121721acc21mr37058106c88.10.1767225097844; Wed, 31 Dec 2025 15:51:37 -0800 (PST) Received: from medusa.lab.kspace.sh ([208.88.152.253]) by smtp.googlemail.com with UTF8SMTPSA id a92af1059eb24-1217253c058sm143636681c88.11.2025.12.31.15.51.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 31 Dec 2025 15:51:37 -0800 (PST) Date: Wed, 31 Dec 2025 15:51:36 -0800 From: Mohamed Khalfella To: Sagi Grimberg Cc: Chaitanya Kulkarni , Christoph Hellwig , Jens Axboe , Keith Busch , Aaron Dailey , Randy Jennings , John Meneghini , Hannes Reinecke , linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH 09/14] nvme: Implement cross-controller reset completion Message-ID: <20251231235136.GQ3864520-mkhalfella@purestorage.com> References: <20251126021250.2583630-1-mkhalfella@purestorage.com> <20251126021250.2583630-10-mkhalfella@purestorage.com> <9ac9b7c8-139f-48f9-bfd2-bfd03506abf0@grimberg.me> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9ac9b7c8-139f-48f9-bfd2-bfd03506abf0@grimberg.me> On Sat 2025-12-27 12:24:17 +0200, Sagi Grimberg wrote: > > > + log = kmalloc(sizeof(*log), GFP_KERNEL); > > + if (!log) > > + return; > > + > > + ret = nvme_get_log(ctrl, 0, NVME_LOG_CCR, 0x01, > > + 0x00, log, sizeof(*log), 0); > > + if (ret) > > + goto out; > > + > > + spin_lock_irqsave(&ctrl->lock, flags); > > + for (i = 0; i < le16_to_cpu(log->ne); i++) { > > + entry = &log->entries[i]; > > + if (entry->ccrs == 0) /* skip in progress entries */ > > + continue; > > What does ccrs stand for? Cross-Controller Reset Status 0x00 -> In Progress 0x01 -> Success 0x02 -> Failed 0x03 - 0xff -> Reserved