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);
--
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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