nvme-pci: disable write zeros support on SSDs

[Rita Lin]

Dear Christoph,

Thank you for your advice.
Please find the updated patch in the attached file.

Rita LinÁÖݽìÓ
+886-37-586-896 Ext.80051
ritach_lin at phison.com


-----Original Message-----
From: Christoph Hellwig [mailto:hch at lst.de]
Sent: Thursday, September 22, 2022 1:53 PM
To: Rita Lin <ritach_lin at phison.com>
Cc: Christoph Hellwig <hch at lst.de>; Keith Busch <kbusch at kernel.org>; Jens Axboe <axboe at fb.com>; Sagi Grimberg <sagi at grimberg.me>; linux-nvme at lists.infradead.org; linux-kernel at vger.kernel.org; üSêɬ| <redd_huang at phison.com>; Tina Hsu <tina_hsu at phison.com>; Vita Hsueh (ѦÒÁÙ») <Vita.Hsueh at quantatw.com>; Wang, Audrey <audrey.wang at hp.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.


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