On 7/22/22 03:19, Avri Altman wrote:
Note: the maximum data buffer size supported by the UFSHCI specification
is 65535 * 256 MiB or about 16 TiB.
>
Can you help me find this limit in UFSHCI?
From the UFSHCI 3.0 specification:
* PRDT length is a sixteen bit field so the maximum value is 65535
(entries).
* The maximum length of a single descriptor is 256 KiB. See also the DBC
(Data Byte Count) field.
So the maximum amount of data that can be transferred at once is 65535 *
256 KiB or about 16 GiB (and not what I wrote in my previous message).
Thanks,
Bart.
