On 11/1/23 01:45, SEO HOYOUNG wrote:
In MCQ mode, the case where OCS is updated to aborted is as follows 1. when abort processing is completed 2. When a duplicate command occurs
What is a "duplicate command"? The UFSHCI driver guarantees that each SCSI command has a unique tag.
In case of 1 situation, cmd should be re-request.
It should be resubmitted by the SCSI error handler. The UFSHCI driver does not have to request this explicitly. See also the code at the end of scmd_eh_abort_handler().
case OCS_ABORTED: - result |= DID_ABORT << 16; + if (cqe) + eec = le32_to_cpu(cqe->status) & MASK_EEC; + + if (is_mcq_enabled(hba) && !eec) + result |= DID_REQUEUE << 16; + else + result |= DID_ABORT << 16; break;
I don't think this change is necessary. Additionally, introducing different behavior for MCQ compared to legacy mode in this code path is suspicious. Why should how commands are queued affect how aborts are processed? Thanks, Bart.
