John,
> We have an issue with using scsi_transfer_length().
>
> As I understand, for our controller we need to set the host structure
> data transfer size to the size of data to write to the disk for WRITE
> type command, and at size of info received to host memory for READ
> type command. As su
On 13/12/2018 13:35, John Garry wrote:
to set your controller flags.
+if (prot_op == SCSI_PROT_WRITE_INSERT) {
+unsigned int interval = scsi_prot_interval(scsi_cmnd);
+unsigned int ilog2_interval = ilog2(interval);
+
+len = (task->total_xfer_len >>
On 13/12/2018 02:20, Martin K. Petersen wrote:
John,
Hi Martin,
+static void fill_prot_v3_hw(struct scsi_cmnd *scsi_cmnd,
+ struct hisi_sas_protect_iu_v3_hw *prot)
+{
+ u8 prot_type = scsi_get_prot_type(scsi_cmnd);
+ u8 prot_op = scsi_get_prot_op(scsi_
John,
> +static void fill_prot_v3_hw(struct scsi_cmnd *scsi_cmnd,
> + struct hisi_sas_protect_iu_v3_hw *prot)
> +{
> + u8 prot_type = scsi_get_prot_type(scsi_cmnd);
> + u8 prot_op = scsi_get_prot_op(scsi_cmnd);
> + unsigned int interval = scsi_prot_interval(sc
From: Xiang Chen
For v3 hw, we support DIF operation for SAS, but not SATA.
This patchset adds the SW support for the described features. The main
components are as follows:
- Get DIF enablement from module param
- Fill PI fields
- Fill related to DIF in DQ and protection iu memories
Signed-off
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