linux-kernel - Re: nvme-pci: disable write zeros support on SSDs

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Date:   Thu, 22 Sep 2022 07:52:31 +0200
From:   Christoph Hellwig <hch@....de>
To:     Rita Lin <ritach_lin@...son.com>
Cc:     Christoph Hellwig <hch@....de>, Keith Busch <kbusch@...nel.org>,
        Jens Axboe <axboe@...com>, Sagi Grimberg <sagi@...mberg.me>,
        "linux-nvme@...ts.infradead.org" <linux-nvme@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        �S晟�| <redd_huang@...son.com>,
        Tina Hsu <tina_hsu@...son.com>,
        Vita Hsueh (薛伊倩) 
        <Vita.Hsueh@...ntatw.com>, "Wang, Audrey" <audrey.wang@...com>
Subject: Re: nvme-pci: disable write zeros support on SSDs

On Thu, Sep 22, 2022 at 05:50:52AM +0000, Rita Lin wrote:
> Dear Christoph,
> 
> Thank you for your reply.
> These SSDs do support write 0 command and the function was tested without issue.
> But since these SSDs are DRAMless products, the write 0 command will take a lot longer to complete which had impacted the product performance.
> Due to the FW had been frozen, we would like to check if we could apply CL for these 2 products.

please add a comment explaining this to the IDs entry.