Re: [PATCH v4 1/3] scsi: ufs: Allow RTT negotiation

[Bart Van Assche <bvanassche@acm.org>]

On 5/16/24 09:21, Avri Altman wrote:
>> On 5/15/24 23:51, Avri Altman wrote:
>>>    void ufshcd_fixup_dev_quirks(struct ufs_hba *hba,
>>>                             const struct ufs_dev_quirk *fixups)
>>>    {
>>> @@ -8278,6 +8312,8 @@ static int ufs_get_device_desc(struct ufs_hba *hba)
>>>        if (hba->ext_iid_sup)
>>>                ufshcd_ext_iid_probe(hba, desc_buf);
>>>
>>> +     ufshcd_rtt_set(hba, desc_buf);
>>> +
>>
>> Why does this call occur in ufs_get_device_desc()? ufshcd_rtt_set() sets
>> a device parameter. Shouldn't this call be moved one level up into
>> ufshcd_device_params_init()?
> Because otherwise bDeviceRTTCap is not available.
> Please note several device configuration calls in  ufs_get_device_desc - all requires some device descriptor fields.

Please make sure that the functionality of ufs_get_device_desc() and the 
name of that function remain in sync.

I think that bDeviceRTTCap is available in ufshcd_device_params_init()
after ufs_get_device_desc() has returned?

Thanks,

Bart.