From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out28-84.mail.aliyun.com (out28-84.mail.aliyun.com [115.124.28.84]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5AD7C79D0 for ; Tue, 24 Jun 2025 01:10:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.28.84 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750727433; cv=none; b=a4j+Vj0h8J6JtSulAGRhe4DcLrICHnx/XwUJgvhQq44mAgHjaEM4TzMASCfLNXL+kGc8wxYsXDiQ18GuFb/8GVVzO7ZvNj6kNA9BxM79JawkwyZig8T/5D/DFvFdrxzGhKIBLdJFchef/CH9WxsDDcy4L2INu7OReS7VpP6u9F4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750727433; c=relaxed/simple; bh=vbze/WviVnobLVutE1oTI+a74X4YkHBJ2jX7He20Das=; h=Date:From:To:Subject:Cc:Message-Id:MIME-Version:Content-Type; b=XnNi7LNhK4mlu55SvpjAo9t63kQ7D4Y1gvnjPGSSlzH6X0g+PGAVTaIVjCK5BEpipP/TyHcSb6RxWV7CsaxLAZfmYihwdflaZPxuojp/SR/4bCH853LB4STYhwLXM0q6+QUJ46E3qxU+Py4zSVkmejLUFyYv2OzC/ocGGTjHPU0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=e16-tech.com; spf=pass smtp.mailfrom=e16-tech.com; arc=none smtp.client-ip=115.124.28.84 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=e16-tech.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=e16-tech.com Received: from 192.168.2.112(mailfrom:wangyugui@e16-tech.com fp:SMTPD_---.dV7qcIs_1750727420 cluster:ay29) by smtp.aliyun-inc.com; Tue, 24 Jun 2025 09:10:20 +0800 Date: Tue, 24 Jun 2025 09:10:21 +0800 From: Wang Yugui To: linux-block@vger.kernel.org Subject: scsi optimal_io_size changed from 0 on kernel 6.6, to 16773120(32760*512, 4095*4096) on kernel 6.12/6.16 Cc: wangyugui@e16-tech.com Message-Id: <20250624091020.071E.409509F4@e16-tech.com> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.81.08 [en] Hi, scsi optimal_io_size changed from 0 on kernel 6.6, to 16773120(32760*512, 4095*4096) on kernel 6.12/6.16 I tested in on same device and same os dist, but different kernel version. both ssd/sas and ssd/sata connected to same hba(mpi3sas driver). Is there some feature that changed the default value? Best Regards Wang Yugui (wangyugui@e16-tech.com) 2025/06/24