1518 static void ata_qc_complete_internal(struct ata_queued_cmd *qc)  in ata_qc_complete_internal()  argument
1520 	struct completion *waiting = qc->private_data;  in ata_qc_complete_internal()
1556 	struct ata_queued_cmd *qc;  in ata_exec_internal_sg()  local
1575 	qc = __ata_qc_from_tag(ap, ATA_TAG_INTERNAL);  in ata_exec_internal_sg()
1577 	qc->tag = ATA_TAG_INTERNAL;  in ata_exec_internal_sg()
1578 	qc->hw_tag = 0;  in ata_exec_internal_sg()
1579 	qc->scsicmd = NULL;  in ata_exec_internal_sg()
1580 	qc->ap = ap;  in ata_exec_internal_sg()
1581 	qc->dev = dev;  in ata_exec_internal_sg()
1582 	ata_qc_reinit(qc);  in ata_exec_internal_sg()
1594 	qc->tf = *tf;  in ata_exec_internal_sg()
1596 		memcpy(qc->cdb, cdb, ATAPI_CDB_LEN);  in ata_exec_internal_sg()
1601 		qc->tf.feature |= ATAPI_DMADIR;  in ata_exec_internal_sg()
1603 	qc->flags |= ATA_QCFLAG_RESULT_TF;  in ata_exec_internal_sg()
1604 	qc->dma_dir = dma_dir;  in ata_exec_internal_sg()
1612 		ata_sg_init(qc, sgl, n_elem);  in ata_exec_internal_sg()
1613 		qc->nbytes = buflen;  in ata_exec_internal_sg()
1616 	qc->private_data = &wait;  in ata_exec_internal_sg()
1617 	qc->complete_fn = ata_qc_complete_internal;  in ata_exec_internal_sg()
1619 	ata_qc_issue(qc);  in ata_exec_internal_sg()
1650 		if (qc->flags & ATA_QCFLAG_ACTIVE) {  in ata_exec_internal_sg()
1651 			qc->err_mask |= AC_ERR_TIMEOUT;  in ata_exec_internal_sg()
1656 				ata_qc_complete(qc);  in ata_exec_internal_sg()
1668 		ap->ops->post_internal_cmd(qc);  in ata_exec_internal_sg()
1671 	if (qc->flags & ATA_QCFLAG_FAILED) {  in ata_exec_internal_sg()
1672 		if (qc->result_tf.command & (ATA_ERR | ATA_DF))  in ata_exec_internal_sg()
1673 			qc->err_mask |= AC_ERR_DEV;  in ata_exec_internal_sg()
1675 		if (!qc->err_mask)  in ata_exec_internal_sg()
1676 			qc->err_mask |= AC_ERR_OTHER;  in ata_exec_internal_sg()
1678 		if (qc->err_mask & ~AC_ERR_OTHER)  in ata_exec_internal_sg()
1679 			qc->err_mask &= ~AC_ERR_OTHER;  in ata_exec_internal_sg()
1680 	} else if (qc->tf.command == ATA_CMD_REQ_SENSE_DATA) {  in ata_exec_internal_sg()
1681 		qc->result_tf.command |= ATA_SENSE;  in ata_exec_internal_sg()
1687 	*tf = qc->result_tf;  in ata_exec_internal_sg()
1688 	err_mask = qc->err_mask;  in ata_exec_internal_sg()
1690 	ata_qc_free(qc);  in ata_exec_internal_sg()
4936 int atapi_check_dma(struct ata_queued_cmd *qc)  in atapi_check_dma()  argument
4938 	struct ata_port *ap = qc->ap;  in atapi_check_dma()
4943 	if (!(qc->dev->horkage & ATA_HORKAGE_ATAPI_MOD16_DMA) &&  in atapi_check_dma()
4944 	    unlikely(qc->nbytes & 15))  in atapi_check_dma()
4948 		return ap->ops->check_atapi_dma(qc);  in atapi_check_dma()
4968 int ata_std_qc_defer(struct ata_queued_cmd *qc)  in ata_std_qc_defer()  argument
4970 	struct ata_link *link = qc->dev->link;  in ata_std_qc_defer()
4972 	if (ata_is_ncq(qc->tf.protocol)) {  in ata_std_qc_defer()
4983 void ata_noop_qc_prep(struct ata_queued_cmd *qc) { }  in ata_noop_qc_prep()  argument
4998 void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg,  in ata_sg_init()  argument
5001 	qc->sg = sg;  in ata_sg_init()
5002 	qc->n_elem = n_elem;  in ata_sg_init()
5003 	qc->cursg = qc->sg;  in ata_sg_init()
5017 static void ata_sg_clean(struct ata_queued_cmd *qc)  in ata_sg_clean()  argument
5019 	struct ata_port *ap = qc->ap;  in ata_sg_clean()
5020 	struct scatterlist *sg = qc->sg;  in ata_sg_clean()
5021 	int dir = qc->dma_dir;  in ata_sg_clean()
5025 	VPRINTK("unmapping %u sg elements\n", qc->n_elem);  in ata_sg_clean()
5027 	if (qc->n_elem)  in ata_sg_clean()
5028 		dma_unmap_sg(ap->dev, sg, qc->orig_n_elem, dir);  in ata_sg_clean()
5030 	qc->flags &= ~ATA_QCFLAG_DMAMAP;  in ata_sg_clean()
5031 	qc->sg = NULL;  in ata_sg_clean()
5047 static int ata_sg_setup(struct ata_queued_cmd *qc)  in ata_sg_setup()  argument
5049 	struct ata_port *ap = qc->ap;  in ata_sg_setup()
5054 	n_elem = dma_map_sg(ap->dev, qc->sg, qc->n_elem, qc->dma_dir);  in ata_sg_setup()
5059 	qc->orig_n_elem = qc->n_elem;  in ata_sg_setup()
5060 	qc->n_elem = n_elem;  in ata_sg_setup()
5061 	qc->flags |= ATA_QCFLAG_DMAMAP;  in ata_sg_setup()
5068 static inline void ata_sg_clean(struct ata_queued_cmd *qc) {}  in ata_sg_clean()  argument
5069 static inline int ata_sg_setup(struct ata_queued_cmd *qc) { return -1; }  in ata_sg_setup()  argument
5107 	struct ata_queued_cmd *qc;  in ata_qc_new_init()  local
5120 	qc = __ata_qc_from_tag(ap, tag);  in ata_qc_new_init()
5121 	qc->tag = qc->hw_tag = tag;  in ata_qc_new_init()
5122 	qc->scsicmd = NULL;  in ata_qc_new_init()
5123 	qc->ap = ap;  in ata_qc_new_init()
5124 	qc->dev = dev;  in ata_qc_new_init()
5126 	ata_qc_reinit(qc);  in ata_qc_new_init()
5128 	return qc;  in ata_qc_new_init()
5141 void ata_qc_free(struct ata_queued_cmd *qc)  in ata_qc_free()  argument
5146 	WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */  in ata_qc_free()
5147 	ap = qc->ap;  in ata_qc_free()
5149 	qc->flags = 0;  in ata_qc_free()
5150 	tag = qc->tag;  in ata_qc_free()
5152 		qc->tag = ATA_TAG_POISON;  in ata_qc_free()
5158 void __ata_qc_complete(struct ata_queued_cmd *qc)  in __ata_qc_complete()  argument
5163 	WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */  in __ata_qc_complete()
5164 	WARN_ON_ONCE(!(qc->flags & ATA_QCFLAG_ACTIVE));  in __ata_qc_complete()
5165 	ap = qc->ap;  in __ata_qc_complete()
5166 	link = qc->dev->link;  in __ata_qc_complete()
5168 	if (likely(qc->flags & ATA_QCFLAG_DMAMAP))  in __ata_qc_complete()
5169 		ata_sg_clean(qc);  in __ata_qc_complete()
5172 	if (ata_is_ncq(qc->tf.protocol)) {  in __ata_qc_complete()
5173 		link->sactive &= ~(1 << qc->hw_tag);  in __ata_qc_complete()
5182 	if (unlikely(qc->flags & ATA_QCFLAG_CLEAR_EXCL &&  in __ata_qc_complete()
5190 	qc->flags &= ~ATA_QCFLAG_ACTIVE;  in __ata_qc_complete()
5191 	ap->qc_active &= ~(1ULL << qc->tag);  in __ata_qc_complete()
5194 	qc->complete_fn(qc);  in __ata_qc_complete()
5197 static void fill_result_tf(struct ata_queued_cmd *qc)  in fill_result_tf()  argument
5199 	struct ata_port *ap = qc->ap;  in fill_result_tf()
5201 	qc->result_tf.flags = qc->tf.flags;  in fill_result_tf()
5202 	ap->ops->qc_fill_rtf(qc);  in fill_result_tf()
5205 static void ata_verify_xfer(struct ata_queued_cmd *qc)  in ata_verify_xfer()  argument
5207 	struct ata_device *dev = qc->dev;  in ata_verify_xfer()
5209 	if (!ata_is_data(qc->tf.protocol))  in ata_verify_xfer()
5212 	if ((dev->mwdma_mask || dev->udma_mask) && ata_is_pio(qc->tf.protocol))  in ata_verify_xfer()
5233 void ata_qc_complete(struct ata_queued_cmd *qc)  in ata_qc_complete()  argument
5235 	struct ata_port *ap = qc->ap;  in ata_qc_complete()
5238 	ledtrig_disk_activity(!!(qc->tf.flags & ATA_TFLAG_WRITE));  in ata_qc_complete()
5254 		struct ata_device *dev = qc->dev;  in ata_qc_complete()
5257 		if (unlikely(qc->err_mask))  in ata_qc_complete()
5258 			qc->flags |= ATA_QCFLAG_FAILED;  in ata_qc_complete()
5264 		if (unlikely(ata_tag_internal(qc->tag))) {  in ata_qc_complete()
5265 			fill_result_tf(qc);  in ata_qc_complete()
5266 			trace_ata_qc_complete_internal(qc);  in ata_qc_complete()
5267 			__ata_qc_complete(qc);  in ata_qc_complete()
5275 		if (unlikely(qc->flags & ATA_QCFLAG_FAILED)) {  in ata_qc_complete()
5276 			fill_result_tf(qc);  in ata_qc_complete()
5277 			trace_ata_qc_complete_failed(qc);  in ata_qc_complete()
5278 			ata_qc_schedule_eh(qc);  in ata_qc_complete()
5285 		if (qc->flags & ATA_QCFLAG_RESULT_TF)  in ata_qc_complete()
5286 			fill_result_tf(qc);  in ata_qc_complete()
5288 		trace_ata_qc_complete_done(qc);  in ata_qc_complete()
5292 		switch (qc->tf.command) {  in ata_qc_complete()
5294 			if (qc->tf.feature != SETFEATURES_WC_ON &&  in ata_qc_complete()
5295 			    qc->tf.feature != SETFEATURES_WC_OFF &&  in ata_qc_complete()
5296 			    qc->tf.feature != SETFEATURES_RA_ON &&  in ata_qc_complete()
5297 			    qc->tf.feature != SETFEATURES_RA_OFF)  in ata_qc_complete()
5313 			ata_verify_xfer(qc);  in ata_qc_complete()
5315 		__ata_qc_complete(qc);  in ata_qc_complete()
5317 		if (qc->flags & ATA_QCFLAG_EH_SCHEDULED)  in ata_qc_complete()
5321 		if (qc->err_mask || qc->flags & ATA_QCFLAG_RESULT_TF)  in ata_qc_complete()
5322 			fill_result_tf(qc);  in ata_qc_complete()
5324 		__ata_qc_complete(qc);  in ata_qc_complete()
5372 		struct ata_queued_cmd *qc;  in ata_qc_complete_multiple()  local
5375 		qc = ata_qc_from_tag(ap, tag);  in ata_qc_complete_multiple()
5376 		if (qc) {  in ata_qc_complete_multiple()
5377 			ata_qc_complete(qc);  in ata_qc_complete_multiple()
5398 void ata_qc_issue(struct ata_queued_cmd *qc)  in ata_qc_issue()  argument
5400 	struct ata_port *ap = qc->ap;  in ata_qc_issue()
5401 	struct ata_link *link = qc->dev->link;  in ata_qc_issue()
5402 	u8 prot = qc->tf.protocol;  in ata_qc_issue()
5411 		WARN_ON_ONCE(link->sactive & (1 << qc->hw_tag));  in ata_qc_issue()
5415 		link->sactive |= 1 << qc->hw_tag;  in ata_qc_issue()
5420 		link->active_tag = qc->tag;  in ata_qc_issue()
5423 	qc->flags |= ATA_QCFLAG_ACTIVE;  in ata_qc_issue()
5424 	ap->qc_active |= 1ULL << qc->tag;  in ata_qc_issue()
5430 	if (ata_is_data(prot) && (!qc->sg || !qc->n_elem || !qc->nbytes))  in ata_qc_issue()
5435 		if (ata_sg_setup(qc))  in ata_qc_issue()
5439 	if (unlikely(qc->dev->flags & ATA_DFLAG_SLEEPING)) {  in ata_qc_issue()
5446 	ap->ops->qc_prep(qc);  in ata_qc_issue()
5447 	trace_ata_qc_issue(qc);  in ata_qc_issue()
5448 	qc->err_mask |= ap->ops->qc_issue(qc);  in ata_qc_issue()
5449 	if (unlikely(qc->err_mask))  in ata_qc_issue()
5454 	qc->err_mask |= AC_ERR_SYSTEM;  in ata_qc_issue()
5456 	ata_qc_complete(qc);  in ata_qc_issue()
7185 static unsigned int ata_dummy_qc_issue(struct ata_queued_cmd *qc)  in ata_dummy_qc_issue()  argument