On 10/2/23 04:36, John Garry wrote:
On 29/09/2023 18:59, Bart Van Assche wrote:
On 9/29/23 03:27, John Garry wrote:
+static blk_status_t sd_setup_atomic_cmnd(struct scsi_cmnd *cmd,
+ sector_t lba, unsigned int nr_blocks,
+ unsigned char flags)
+{
+ cmd->cmd_len = 16;
+ cmd->cmnd[0] = WRITE_ATOMIC_16;
+ cmd->cmnd[1] = flags;
+ put_unaligned_be64(lba, &cmd->cmnd[2]);
+ cmd->cmnd[10] = 0;
+ cmd->cmnd[11] = 0;
+ put_unaligned_be16(nr_blocks, &cmd->cmnd[12]);
+ cmd->cmnd[14] = 0;
+ cmd->cmnd[15] = 0;
+
+ return BLK_STS_OK;
+}
Please store the 'dld' value in the GROUP NUMBER field. See e.g.
sd_setup_rw16_cmnd().
Are you sure that WRITE ATOMIC (16) supports dld?
Hi John,
I was assuming that DLD would be supported by the WRITE ATOMIC(16)
command. After having taken another look at the latest SBC-5 draft
I see that the DLD2/DLD1/DLD0 bits are not present in the WRITE
ATOMIC(16) command. So please ignore my comment above.
Thanks,
Bart.
