1465 static void ata_qc_complete_internal(struct ata_queued_cmd *qc)  in ata_qc_complete_internal()  argument
1467 	struct completion *waiting = qc->private_data;  in ata_qc_complete_internal()
1503 	struct ata_queued_cmd *qc;  in ata_exec_internal_sg()  local
1522 	qc = __ata_qc_from_tag(ap, ATA_TAG_INTERNAL);  in ata_exec_internal_sg()
1524 	qc->tag = ATA_TAG_INTERNAL;  in ata_exec_internal_sg()
1525 	qc->hw_tag = 0;  in ata_exec_internal_sg()
1526 	qc->scsicmd = NULL;  in ata_exec_internal_sg()
1527 	qc->ap = ap;  in ata_exec_internal_sg()
1528 	qc->dev = dev;  in ata_exec_internal_sg()
1529 	ata_qc_reinit(qc);  in ata_exec_internal_sg()
1541 	qc->tf = *tf;  in ata_exec_internal_sg()
1543 		memcpy(qc->cdb, cdb, ATAPI_CDB_LEN);  in ata_exec_internal_sg()
1548 		qc->tf.feature |= ATAPI_DMADIR;  in ata_exec_internal_sg()
1550 	qc->flags |= ATA_QCFLAG_RESULT_TF;  in ata_exec_internal_sg()
1551 	qc->dma_dir = dma_dir;  in ata_exec_internal_sg()
1559 		ata_sg_init(qc, sgl, n_elem);  in ata_exec_internal_sg()
1560 		qc->nbytes = buflen;  in ata_exec_internal_sg()
1563 	qc->private_data = &wait;  in ata_exec_internal_sg()
1564 	qc->complete_fn = ata_qc_complete_internal;  in ata_exec_internal_sg()
1566 	ata_qc_issue(qc);  in ata_exec_internal_sg()
1597 		if (qc->flags & ATA_QCFLAG_ACTIVE) {  in ata_exec_internal_sg()
1598 			qc->err_mask |= AC_ERR_TIMEOUT;  in ata_exec_internal_sg()
1603 				ata_qc_complete(qc);  in ata_exec_internal_sg()
1615 		ap->ops->post_internal_cmd(qc);  in ata_exec_internal_sg()
1618 	if (qc->flags & ATA_QCFLAG_FAILED) {  in ata_exec_internal_sg()
1619 		if (qc->result_tf.command & (ATA_ERR | ATA_DF))  in ata_exec_internal_sg()
1620 			qc->err_mask |= AC_ERR_DEV;  in ata_exec_internal_sg()
1622 		if (!qc->err_mask)  in ata_exec_internal_sg()
1623 			qc->err_mask |= AC_ERR_OTHER;  in ata_exec_internal_sg()
1625 		if (qc->err_mask & ~AC_ERR_OTHER)  in ata_exec_internal_sg()
1626 			qc->err_mask &= ~AC_ERR_OTHER;  in ata_exec_internal_sg()
1627 	} else if (qc->tf.command == ATA_CMD_REQ_SENSE_DATA) {  in ata_exec_internal_sg()
1628 		qc->result_tf.command |= ATA_SENSE;  in ata_exec_internal_sg()
1634 	*tf = qc->result_tf;  in ata_exec_internal_sg()
1635 	err_mask = qc->err_mask;  in ata_exec_internal_sg()
1637 	ata_qc_free(qc);  in ata_exec_internal_sg()
4380 int atapi_check_dma(struct ata_queued_cmd *qc)  in atapi_check_dma()  argument
4382 	struct ata_port *ap = qc->ap;  in atapi_check_dma()
4387 	if (!(qc->dev->horkage & ATA_HORKAGE_ATAPI_MOD16_DMA) &&  in atapi_check_dma()
4388 	    unlikely(qc->nbytes & 15))  in atapi_check_dma()
4392 		return ap->ops->check_atapi_dma(qc);  in atapi_check_dma()
4412 int ata_std_qc_defer(struct ata_queued_cmd *qc)  in ata_std_qc_defer()  argument
4414 	struct ata_link *link = qc->dev->link;  in ata_std_qc_defer()
4416 	if (ata_is_ncq(qc->tf.protocol)) {  in ata_std_qc_defer()
4428 enum ata_completion_errors ata_noop_qc_prep(struct ata_queued_cmd *qc)  in ata_noop_qc_prep()  argument
4447 void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg,  in ata_sg_init()  argument
4450 	qc->sg = sg;  in ata_sg_init()
4451 	qc->n_elem = n_elem;  in ata_sg_init()
4452 	qc->cursg = qc->sg;  in ata_sg_init()
4466 static void ata_sg_clean(struct ata_queued_cmd *qc)  in ata_sg_clean()  argument
4468 	struct ata_port *ap = qc->ap;  in ata_sg_clean()
4469 	struct scatterlist *sg = qc->sg;  in ata_sg_clean()
4470 	int dir = qc->dma_dir;  in ata_sg_clean()
4474 	VPRINTK("unmapping %u sg elements\n", qc->n_elem);  in ata_sg_clean()
4476 	if (qc->n_elem)  in ata_sg_clean()
4477 		dma_unmap_sg(ap->dev, sg, qc->orig_n_elem, dir);  in ata_sg_clean()
4479 	qc->flags &= ~ATA_QCFLAG_DMAMAP;  in ata_sg_clean()
4480 	qc->sg = NULL;  in ata_sg_clean()
4496 static int ata_sg_setup(struct ata_queued_cmd *qc)  in ata_sg_setup()  argument
4498 	struct ata_port *ap = qc->ap;  in ata_sg_setup()
4503 	n_elem = dma_map_sg(ap->dev, qc->sg, qc->n_elem, qc->dma_dir);  in ata_sg_setup()
4508 	qc->orig_n_elem = qc->n_elem;  in ata_sg_setup()
4509 	qc->n_elem = n_elem;  in ata_sg_setup()
4510 	qc->flags |= ATA_QCFLAG_DMAMAP;  in ata_sg_setup()
4517 static inline void ata_sg_clean(struct ata_queued_cmd *qc) {}  in ata_sg_clean()  argument
4518 static inline int ata_sg_setup(struct ata_queued_cmd *qc) { return -1; }  in ata_sg_setup()  argument
4556 	struct ata_queued_cmd *qc;  in ata_qc_new_init()  local
4569 	qc = __ata_qc_from_tag(ap, tag);  in ata_qc_new_init()
4570 	qc->tag = qc->hw_tag = tag;  in ata_qc_new_init()
4571 	qc->scsicmd = NULL;  in ata_qc_new_init()
4572 	qc->ap = ap;  in ata_qc_new_init()
4573 	qc->dev = dev;  in ata_qc_new_init()
4575 	ata_qc_reinit(qc);  in ata_qc_new_init()
4577 	return qc;  in ata_qc_new_init()
4590 void ata_qc_free(struct ata_queued_cmd *qc)  in ata_qc_free()  argument
4595 	WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */  in ata_qc_free()
4596 	ap = qc->ap;  in ata_qc_free()
4598 	qc->flags = 0;  in ata_qc_free()
4599 	tag = qc->tag;  in ata_qc_free()
4601 		qc->tag = ATA_TAG_POISON;  in ata_qc_free()
4607 void __ata_qc_complete(struct ata_queued_cmd *qc)  in __ata_qc_complete()  argument
4612 	WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */  in __ata_qc_complete()
4613 	WARN_ON_ONCE(!(qc->flags & ATA_QCFLAG_ACTIVE));  in __ata_qc_complete()
4614 	ap = qc->ap;  in __ata_qc_complete()
4615 	link = qc->dev->link;  in __ata_qc_complete()
4617 	if (likely(qc->flags & ATA_QCFLAG_DMAMAP))  in __ata_qc_complete()
4618 		ata_sg_clean(qc);  in __ata_qc_complete()
4621 	if (ata_is_ncq(qc->tf.protocol)) {  in __ata_qc_complete()
4622 		link->sactive &= ~(1 << qc->hw_tag);  in __ata_qc_complete()
4631 	if (unlikely(qc->flags & ATA_QCFLAG_CLEAR_EXCL &&  in __ata_qc_complete()
4639 	qc->flags &= ~ATA_QCFLAG_ACTIVE;  in __ata_qc_complete()
4640 	ap->qc_active &= ~(1ULL << qc->tag);  in __ata_qc_complete()
4643 	qc->complete_fn(qc);  in __ata_qc_complete()
4646 static void fill_result_tf(struct ata_queued_cmd *qc)  in fill_result_tf()  argument
4648 	struct ata_port *ap = qc->ap;  in fill_result_tf()
4650 	qc->result_tf.flags = qc->tf.flags;  in fill_result_tf()
4651 	ap->ops->qc_fill_rtf(qc);  in fill_result_tf()
4654 static void ata_verify_xfer(struct ata_queued_cmd *qc)  in ata_verify_xfer()  argument
4656 	struct ata_device *dev = qc->dev;  in ata_verify_xfer()
4658 	if (!ata_is_data(qc->tf.protocol))  in ata_verify_xfer()
4661 	if ((dev->mwdma_mask || dev->udma_mask) && ata_is_pio(qc->tf.protocol))  in ata_verify_xfer()
4682 void ata_qc_complete(struct ata_queued_cmd *qc)  in ata_qc_complete()  argument
4684 	struct ata_port *ap = qc->ap;  in ata_qc_complete()
4687 	ledtrig_disk_activity(!!(qc->tf.flags & ATA_TFLAG_WRITE));  in ata_qc_complete()
4703 		struct ata_device *dev = qc->dev;  in ata_qc_complete()
4706 		if (unlikely(qc->err_mask))  in ata_qc_complete()
4707 			qc->flags |= ATA_QCFLAG_FAILED;  in ata_qc_complete()
4713 		if (unlikely(ata_tag_internal(qc->tag))) {  in ata_qc_complete()
4714 			fill_result_tf(qc);  in ata_qc_complete()
4715 			trace_ata_qc_complete_internal(qc);  in ata_qc_complete()
4716 			__ata_qc_complete(qc);  in ata_qc_complete()
4724 		if (unlikely(qc->flags & ATA_QCFLAG_FAILED)) {  in ata_qc_complete()
4725 			fill_result_tf(qc);  in ata_qc_complete()
4726 			trace_ata_qc_complete_failed(qc);  in ata_qc_complete()
4727 			ata_qc_schedule_eh(qc);  in ata_qc_complete()
4734 		if (qc->flags & ATA_QCFLAG_RESULT_TF)  in ata_qc_complete()
4735 			fill_result_tf(qc);  in ata_qc_complete()
4737 		trace_ata_qc_complete_done(qc);  in ata_qc_complete()
4741 		switch (qc->tf.command) {  in ata_qc_complete()
4743 			if (qc->tf.feature != SETFEATURES_WC_ON &&  in ata_qc_complete()
4744 			    qc->tf.feature != SETFEATURES_WC_OFF &&  in ata_qc_complete()
4745 			    qc->tf.feature != SETFEATURES_RA_ON &&  in ata_qc_complete()
4746 			    qc->tf.feature != SETFEATURES_RA_OFF)  in ata_qc_complete()
4762 			ata_verify_xfer(qc);  in ata_qc_complete()
4764 		__ata_qc_complete(qc);  in ata_qc_complete()
4766 		if (qc->flags & ATA_QCFLAG_EH_SCHEDULED)  in ata_qc_complete()
4770 		if (qc->err_mask || qc->flags & ATA_QCFLAG_RESULT_TF)  in ata_qc_complete()
4771 			fill_result_tf(qc);  in ata_qc_complete()
4773 		__ata_qc_complete(qc);  in ata_qc_complete()
4814 void ata_qc_issue(struct ata_queued_cmd *qc)  in ata_qc_issue()  argument
4816 	struct ata_port *ap = qc->ap;  in ata_qc_issue()
4817 	struct ata_link *link = qc->dev->link;  in ata_qc_issue()
4818 	u8 prot = qc->tf.protocol;  in ata_qc_issue()
4827 		WARN_ON_ONCE(link->sactive & (1 << qc->hw_tag));  in ata_qc_issue()
4831 		link->sactive |= 1 << qc->hw_tag;  in ata_qc_issue()
4836 		link->active_tag = qc->tag;  in ata_qc_issue()
4839 	qc->flags |= ATA_QCFLAG_ACTIVE;  in ata_qc_issue()
4840 	ap->qc_active |= 1ULL << qc->tag;  in ata_qc_issue()
4846 	if (ata_is_data(prot) && (!qc->sg || !qc->n_elem || !qc->nbytes))  in ata_qc_issue()
4851 		if (ata_sg_setup(qc))  in ata_qc_issue()
4855 	if (unlikely(qc->dev->flags & ATA_DFLAG_SLEEPING)) {  in ata_qc_issue()
4862 	qc->err_mask |= ap->ops->qc_prep(qc);  in ata_qc_issue()
4863 	if (unlikely(qc->err_mask))  in ata_qc_issue()
4865 	trace_ata_qc_issue(qc);  in ata_qc_issue()
4866 	qc->err_mask |= ap->ops->qc_issue(qc);  in ata_qc_issue()
4867 	if (unlikely(qc->err_mask))  in ata_qc_issue()
4872 	qc->err_mask |= AC_ERR_SYSTEM;  in ata_qc_issue()
4874 	ata_qc_complete(qc);  in ata_qc_issue()
6461 static unsigned int ata_dummy_qc_issue(struct ata_queued_cmd *qc)  in ata_dummy_qc_issue()  argument