Hello, I am new to UFS. I have few queries in it,
(1) As per UFS specification, WRITE(6,10,16) command is used to transfer logical blocks and WRITE BUFFER is used to transfer data in terms of bytes. So, here my query is, what is the difference between those two commands as in both case data is transferred? (2) In WRITE(6, 10, 16) and WRITE BUFFER command, both buffer and cache memory will be written? If yes, then how to control data length in WRITE BUFFER as host is transmitting in terms of bytes while cache will be controlled through logical block? (3) Does below arch. is correct? UFS_HOST => UFS_DEVICE => BUFFER => CACHE_RAM i.e. UFS host transfers command to UFS device. For data transmission, UFS device will send RTT based on buffer size. Then UFS host sends DATA OUT command and UFS device will first store it into buffer. Then it will be written into cache memory. (4) In write command, host is driving logical address. But in Ready-to- transfer and DATA OUT/DATA IN command, data buffer offset is provided. Then, how the device will handle this data for storing as logical block at particular logical address? Thank you, Mehul -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
