From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 D570715BF for ; Tue, 12 Mar 2024 16:39:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710261556; cv=none; b=mc6ST72Oxpkglqh0xLNiDPZ5bLTvfLfECcbjYoUkkErF18LTbu8xem/ao5Ywnf9xDvdHsW4PB9geJYvE45b2LCv45RNp9Zm88/lCAg+U3TAtaq4Ev3g8n80/OD3UXdUqKnCfJVSjMDcAyv+XTu8tTu6Dki7BeFFX1hKJWlNVNXI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710261556; c=relaxed/simple; bh=WFffLCZ8i4MRi8huHhIMMgb8D1Fx/rSrU3BqScm3L3Q=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=aDPpDe/LrbrWrjyXmvDWvZc+ORC4WjPHG/A3wwQcxhTzV7XSedEko0+k9T+3A5G5aCZ10+B9WHjD+X/dcDfBBuGbSWgX6198/wdu0AGG5RviZ+8wPAYKvSw/6jdlBT3ueqCa0cw7KSZas3TJIqOwT3WMxuY7Ohhp24uz+dm93n8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gxVqCfRP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="gxVqCfRP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E23B6C433F1; Tue, 12 Mar 2024 16:39:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1710261556; bh=WFffLCZ8i4MRi8huHhIMMgb8D1Fx/rSrU3BqScm3L3Q=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=gxVqCfRPIVplYYnhDow29DU6OjizIgLJfQ2zSvIlraVFJCri4Pd5RRF9ADhn5gwgm Oos9HwfXw/xo9xWxTIAMjS9yNMhuM6iKsj+ORVkqZsePBTWMId/NqLYo00EV4t/mNM YqVjEMZzijeQylMggOLr0MdjLP+lsKK87HkiOTA2ogO5puldi1VVSpkqW8JYp3cB+M T9/OGgC4FfY4OZJ9P+8YITTFfhlcG3TmBDnxJ1UOhshgqUM7aSEorsfzRcGDiRW4xc lDjoNq1LpbmoYR4GCiyCm/ODMXXTOtWzLZuEPrmvhO2e9v/FgVqsGwDOeJxzCgYPA2 e/1hpzW5FH7aA== Date: Tue, 12 Mar 2024 10:39:13 -0600 From: Keith Busch To: Jens Axboe Cc: Linus Torvalds , Christoph Hellwig , Mike Snitzer , Johannes Weiner , "linux-block@vger.kernel.org" Subject: Re: [GIT PULL] Block updates for 6.9-rc1 Message-ID: References: <07ab62c9-06af-4a4f-bae8-297b3e254ef5@kernel.dk> <01bc0f0d-c754-45af-b5a4-94e92f905f6e@kernel.dk> <9b957380-42c7-42d8-a95e-88ac083e3ffe@kernel.dk> 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-Disposition: inline In-Reply-To: <9b957380-42c7-42d8-a95e-88ac083e3ffe@kernel.dk> On Mon, Mar 11, 2024 at 07:37:06PM -0600, Jens Axboe wrote: > Summary is that this is obviously a pretty normal drive, and has the > 128K transfer limit that's common there. So doesn't really explain > anything in that regard. The segment size is also a bit odd at 33. That's "max_segments" at 33, not segment size. Max payload is 128k, divide by 4k nvme page size = 32 nvme pages. +1 to allow a first segment offset, so 33 max segments for this device.