On Thu, May 7, 2015 at 3:02 AM, Konstantin Dorfman
<kdorfman@xxxxxxxxxxxxxx> wrote:
> Hello,
>
> On 05/06/2015 09:16 PM, Meng Wang wrote:
>>
>> sequence that they are listed in the packed command header. So when
>> error happens, I can safely assert it is completed for the first
>> PACKED_FAILURE_INDEX commands in one pack. Is my understanding
>> correct?
>
>
> Yes, mmc_blk_end_packed_req() will complete packed requests till idx_failure
> index.
>
> From mmc_blk_issue_rw_rq():
>
> case MMC_BLK_PARTIAL:
> /*
> * A block was successfully transferred.
> */
> mmc_blk_reset_success(md, type);
>
> if (mmc_packed_cmd(mq_rq->cmd_type)) {
> ret = mmc_blk_end_packed_req(mq_rq);
> break;
> } else {
> ret = blk_end_request(req, 0,
> brq->data.bytes_xfered);
> }
>
> Then, reminder will be re-issued with mmc_start_req():
>
> ...
> if (ret) {
> if (mmc_packed_cmd(mq_rq->cmd_type)) {
> if (!mq_rq->packed->retries)
> goto cmd_abort;
> mmc_blk_packed_hdr_wrq_prep(mq_rq, card,
> mq);
> mmc_start_req(card->host,
> &mq_rq->mmc_active, NULL);
>
>
Thanks.
> --
> Qualcomm Israel, on behalf of Qualcomm Innovation Center, Inc.
> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
> a Linux Foundation Collaborative Project
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