diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h
index d9215c7106f0..8fc52679543d 100644
--- a/arch/s390/include/asm/qdio.h
+++ b/arch/s390/include/asm/qdio.h
@@ -246,21 +246,8 @@ struct slsb {
 	u8 val[QDIO_MAX_BUFFERS_PER_Q];
 } __attribute__ ((packed, aligned(256)));
 
-/**
- * struct qdio_outbuf_state - SBAL related asynchronous operation information
- *   (for communication with upper layer programs)
- *   (only required for use with completion queues)
- * @user: pointer to upper layer program's state information related to SBAL
- *        (stored in user1 data of QAOB)
- */
-struct qdio_outbuf_state {
-	void *user;
-};
-
-#define CHSC_AC1_INITIATE_INPUTQ	0x80
-
-
 /* qdio adapter-characteristics-1 flag */
+#define CHSC_AC1_INITIATE_INPUTQ	0x80
 #define AC1_SIGA_INPUT_NEEDED		0x40	/* process input queues */
 #define AC1_SIGA_OUTPUT_NEEDED		0x20	/* process output queues */
 #define AC1_SIGA_SYNC_NEEDED		0x10	/* ask hypervisor to sync */
@@ -338,7 +325,6 @@ typedef void qdio_handler_t(struct ccw_device *, unsigned int, int,
  * @int_parm: interruption parameter
  * @input_sbal_addr_array:  per-queue array, each element points to 128 SBALs
  * @output_sbal_addr_array: per-queue array, each element points to 128 SBALs
- * @output_sbal_state_array: no_output_qs * 128 state info (for CQ or NULL)
  */
 struct qdio_initialize {
 	unsigned char q_format;
@@ -357,7 +343,6 @@ struct qdio_initialize {
 	unsigned long int_parm;
 	struct qdio_buffer ***input_sbal_addr_array;
 	struct qdio_buffer ***output_sbal_addr_array;
-	struct qdio_outbuf_state *output_sbal_state_array;
 };
 
 #define QDIO_STATE_INACTIVE		0x00000002 /* after qdio_cleanup */
@@ -378,9 +363,10 @@ extern int qdio_allocate(struct ccw_device *cdev, unsigned int no_input_qs,
 extern int qdio_establish(struct ccw_device *cdev,
 			  struct qdio_initialize *init_data);
 extern int qdio_activate(struct ccw_device *);
+extern struct qaob *qdio_allocate_aob(void);
 extern void qdio_release_aob(struct qaob *);
-extern int do_QDIO(struct ccw_device *, unsigned int, int, unsigned int,
-		   unsigned int);
+extern int do_QDIO(struct ccw_device *cdev, unsigned int callflags, int q_nr,
+		   unsigned int bufnr, unsigned int count, struct qaob *aob);
 extern int qdio_start_irq(struct ccw_device *cdev);
 extern int qdio_stop_irq(struct ccw_device *cdev);
 extern int qdio_get_next_buffers(struct ccw_device *, int, int *, int *);
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index 34bf2f197c71..0e0044d70844 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -181,12 +181,6 @@ struct qdio_input_q {
 struct qdio_output_q {
 	/* PCIs are enabled for the queue */
 	int pci_out_enabled;
-	/* cq: use asynchronous output buffers */
-	int use_cq;
-	/* cq: aobs used for particual SBAL */
-	struct qaob **aobs;
-	/* cq: sbal state related to asynchronous operation */
-	struct qdio_outbuf_state *sbal_state;
 	/* timer to check for more outbound work */
 	struct timer_list timer;
 	/* tasklet to check for completions */
@@ -379,12 +373,8 @@ int qdio_setup_irq(struct qdio_irq *irq_ptr, struct qdio_initialize *init_data);
 void qdio_shutdown_irq(struct qdio_irq *irq);
 void qdio_print_subchannel_info(struct qdio_irq *irq_ptr);
 void qdio_free_queues(struct qdio_irq *irq_ptr);
-void qdio_free_async_data(struct qdio_irq *irq_ptr);
 int qdio_setup_init(void);
 void qdio_setup_exit(void);
-int qdio_enable_async_operation(struct qdio_output_q *q);
-void qdio_disable_async_operation(struct qdio_output_q *q);
-struct qaob *qdio_allocate_aob(void);
 
 int debug_get_buf_state(struct qdio_q *q, unsigned int bufnr,
 			unsigned char *state);
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 03a011619908..307ce7ff5ca4 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -517,24 +517,6 @@ static inline int qdio_inbound_q_done(struct qdio_q *q, unsigned int start)
 	return 1;
 }
 
-static inline unsigned long qdio_aob_for_buffer(struct qdio_output_q *q,
-					int bufnr)
-{
-	unsigned long phys_aob = 0;
-
-	if (!q->aobs[bufnr]) {
-		struct qaob *aob = qdio_allocate_aob();
-		q->aobs[bufnr] = aob;
-	}
-	if (q->aobs[bufnr]) {
-		q->aobs[bufnr]->user1 = (u64) q->sbal_state[bufnr].user;
-		phys_aob = virt_to_phys(q->aobs[bufnr]);
-		WARN_ON_ONCE(phys_aob & 0xFF);
-	}
-
-	return phys_aob;
-}
-
 static inline int qdio_tasklet_schedule(struct qdio_q *q)
 {
 	if (likely(q->irq_ptr->state == QDIO_IRQ_STATE_ACTIVE)) {
@@ -548,7 +530,6 @@ static int get_outbound_buffer_frontier(struct qdio_q *q, unsigned int start,
 					unsigned int *error)
 {
 	unsigned char state = 0;
-	unsigned int i;
 	int count;
 
 	q->timestamp = get_tod_clock_fast();
@@ -570,10 +551,6 @@ static int get_outbound_buffer_frontier(struct qdio_q *q, unsigned int start,
 
 	switch (state) {
 	case SLSB_P_OUTPUT_PENDING:
-		/* detach the utilized QAOBs: */
-		for (i = 0; i < count; i++)
-			q->u.out.aobs[QDIO_BUFNR(start + i)] = NULL;
-
 		*error = QDIO_ERROR_SLSB_PENDING;
 		fallthrough;
 	case SLSB_P_OUTPUT_EMPTY:
@@ -999,7 +976,6 @@ int qdio_free(struct ccw_device *cdev)
 	cdev->private->qdio_data = NULL;
 	mutex_unlock(&irq_ptr->setup_mutex);
 
-	qdio_free_async_data(irq_ptr);
 	qdio_free_queues(irq_ptr);
 	free_page((unsigned long) irq_ptr->qdr);
 	free_page(irq_ptr->chsc_page);
@@ -1075,28 +1051,6 @@ int qdio_allocate(struct ccw_device *cdev, unsigned int no_input_qs,
 }
 EXPORT_SYMBOL_GPL(qdio_allocate);
 
-static void qdio_detect_hsicq(struct qdio_irq *irq_ptr)
-{
-	struct qdio_q *q = irq_ptr->input_qs[0];
-	int i, use_cq = 0;
-
-	if (irq_ptr->nr_input_qs > 1 && queue_type(q) == QDIO_IQDIO_QFMT)
-		use_cq = 1;
-
-	for_each_output_queue(irq_ptr, q, i) {
-		if (use_cq) {
-			if (multicast_outbound(q))
-				continue;
-			if (qdio_enable_async_operation(&q->u.out) < 0) {
-				use_cq = 0;
-				continue;
-			}
-		} else
-			qdio_disable_async_operation(&q->u.out);
-	}
-	DBF_EVENT("use_cq:%d", use_cq);
-}
-
 static void qdio_trace_init_data(struct qdio_irq *irq,
 				 struct qdio_initialize *data)
 {
@@ -1191,8 +1145,6 @@ int qdio_establish(struct ccw_device *cdev,
 
 	qdio_setup_ssqd_info(irq_ptr);
 
-	qdio_detect_hsicq(irq_ptr);
-
 	/* qebsm is now setup if available, initialize buffer states */
 	qdio_init_buf_states(irq_ptr);
 
@@ -1297,9 +1249,11 @@ static int handle_inbound(struct qdio_q *q, unsigned int callflags,
  * @callflags: flags
  * @bufnr: first buffer to process
  * @count: how many buffers are filled
+ * @aob: asynchronous operation block
  */
 static int handle_outbound(struct qdio_q *q, unsigned int callflags,
-			   unsigned int bufnr, unsigned int count)
+			   unsigned int bufnr, unsigned int count,
+			   struct qaob *aob)
 {
 	const unsigned int scan_threshold = q->irq_ptr->scan_threshold;
 	unsigned char state = 0;
@@ -1320,11 +1274,9 @@ static int handle_outbound(struct qdio_q *q, unsigned int callflags,
 		q->u.out.pci_out_enabled = 0;
 
 	if (queue_type(q) == QDIO_IQDIO_QFMT) {
-		unsigned long phys_aob = 0;
-
-		if (q->u.out.use_cq && count == 1)
-			phys_aob = qdio_aob_for_buffer(&q->u.out, bufnr);
+		unsigned long phys_aob = aob ? virt_to_phys(aob) : 0;
 
+		WARN_ON_ONCE(!IS_ALIGNED(phys_aob, 256));
 		rc = qdio_kick_outbound_q(q, count, phys_aob);
 	} else if (need_siga_sync(q)) {
 		rc = qdio_siga_sync_q(q);
@@ -1359,9 +1311,10 @@ static int handle_outbound(struct qdio_q *q, unsigned int callflags,
  * @q_nr: queue number
  * @bufnr: buffer number
  * @count: how many buffers to process
+ * @aob: asynchronous operation block (outbound only)
  */
 int do_QDIO(struct ccw_device *cdev, unsigned int callflags,
-	    int q_nr, unsigned int bufnr, unsigned int count)
+	    int q_nr, unsigned int bufnr, unsigned int count, struct qaob *aob)
 {
 	struct qdio_irq *irq_ptr = cdev->private->qdio_data;
 
@@ -1383,7 +1336,7 @@ int do_QDIO(struct ccw_device *cdev, unsigned int callflags,
 				      callflags, bufnr, count);
 	else if (callflags & QDIO_FLAG_SYNC_OUTPUT)
 		return handle_outbound(irq_ptr->output_qs[q_nr],
-				       callflags, bufnr, count);
+				       callflags, bufnr, count, aob);
 	return -EINVAL;
 }
 EXPORT_SYMBOL_GPL(do_QDIO);
diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c
index c8b9620bc688..da67e4979402 100644
--- a/drivers/s390/cio/qdio_setup.c
+++ b/drivers/s390/cio/qdio_setup.c
@@ -30,6 +30,7 @@ struct qaob *qdio_allocate_aob(void)
 {
 	return kmem_cache_zalloc(qdio_aob_cache, GFP_ATOMIC);
 }
+EXPORT_SYMBOL_GPL(qdio_allocate_aob);
 
 void qdio_release_aob(struct qaob *aob)
 {
@@ -247,8 +248,6 @@ static void setup_queues(struct qdio_irq *irq_ptr,
 			 struct qdio_initialize *qdio_init)
 {
 	struct qdio_q *q;
-	struct qdio_outbuf_state *output_sbal_state_array =
-				  qdio_init->output_sbal_state_array;
 	int i;
 
 	for_each_input_queue(irq_ptr, q, i) {
@@ -265,9 +264,6 @@ static void setup_queues(struct qdio_irq *irq_ptr,
 		DBF_EVENT("outq:%1d", i);
 		setup_queues_misc(q, irq_ptr, qdio_init->output_handler, i);
 
-		q->u.out.sbal_state = output_sbal_state_array;
-		output_sbal_state_array += QDIO_MAX_BUFFERS_PER_Q;
-
 		q->is_input_q = 0;
 		setup_storage_lists(q, irq_ptr,
 				    qdio_init->output_sbal_addr_array[i], i);
@@ -372,30 +368,6 @@ void qdio_setup_ssqd_info(struct qdio_irq *irq_ptr)
 	DBF_EVENT("3:%4x qib:%4x", irq_ptr->ssqd_desc.qdioac3, irq_ptr->qib.ac);
 }
 
-void qdio_free_async_data(struct qdio_irq *irq_ptr)
-{
-	struct qdio_q *q;
-	int i;
-
-	for (i = 0; i < irq_ptr->max_output_qs; i++) {
-		q = irq_ptr->output_qs[i];
-		if (q->u.out.use_cq) {
-			unsigned int n;
-
-			for (n = 0; n < QDIO_MAX_BUFFERS_PER_Q; n++) {
-				struct qaob *aob = q->u.out.aobs[n];
-
-				if (aob) {
-					qdio_release_aob(aob);
-					q->u.out.aobs[n] = NULL;
-				}
-			}
-
-			qdio_disable_async_operation(&q->u.out);
-		}
-	}
-}
-
 static void qdio_fill_qdr_desc(struct qdesfmt0 *desc, struct qdio_q *queue)
 {
 	desc->sliba = virt_to_phys(queue->slib);
@@ -545,25 +517,6 @@ void qdio_print_subchannel_info(struct qdio_irq *irq_ptr)
 	printk(KERN_INFO "%s", s);
 }
 
-int qdio_enable_async_operation(struct qdio_output_q *outq)
-{
-	outq->aobs = kcalloc(QDIO_MAX_BUFFERS_PER_Q, sizeof(struct qaob *),
-			     GFP_KERNEL);
-	if (!outq->aobs) {
-		outq->use_cq = 0;
-		return -ENOMEM;
-	}
-	outq->use_cq = 1;
-	return 0;
-}
-
-void qdio_disable_async_operation(struct qdio_output_q *q)
-{
-	kfree(q->aobs);
-	q->aobs = NULL;
-	q->use_cq = 0;
-}
-
 int __init qdio_setup_init(void)
 {
 	int rc;
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index 91acff493612..fd9b869d278e 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -437,6 +437,7 @@ struct qeth_qdio_out_buffer {
 
 	struct qeth_qdio_out_q *q;
 	struct list_head list_entry;
+	struct qaob *aob;
 };
 
 struct qeth_card;
@@ -499,7 +500,6 @@ struct qeth_out_q_stats {
 struct qeth_qdio_out_q {
 	struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 	struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
-	struct qdio_outbuf_state *bufstates; /* convenience pointer */
 	struct list_head pending_bufs;
 	struct qeth_out_q_stats stats;
 	spinlock_t lock;
@@ -563,7 +563,6 @@ struct qeth_qdio_info {
 	/* output */
 	unsigned int no_out_queues;
 	struct qeth_qdio_out_q *out_qs[QETH_MAX_OUT_QUEUES];
-	struct qdio_outbuf_state *out_bufstates;
 
 	/* priority queueing */
 	int do_prio_queueing;
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index a814698387bc..175b82b98f36 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -369,8 +369,7 @@ static int qeth_cq_init(struct qeth_card *card)
 				   QDIO_MAX_BUFFERS_PER_Q);
 		card->qdio.c_q->next_buf_to_init = 127;
 		rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT,
-			     card->qdio.no_in_queues - 1, 0,
-			     127);
+			     card->qdio.no_in_queues - 1, 0, 127, NULL);
 		if (rc) {
 			QETH_CARD_TEXT_(card, 2, "1err%d", rc);
 			goto out;
@@ -383,48 +382,22 @@ static int qeth_cq_init(struct qeth_card *card)
 
 static int qeth_alloc_cq(struct qeth_card *card)
 {
-	int rc;
-
 	if (card->options.cq == QETH_CQ_ENABLED) {
-		int i;
-		struct qdio_outbuf_state *outbuf_states;
-
 		QETH_CARD_TEXT(card, 2, "cqon");
 		card->qdio.c_q = qeth_alloc_qdio_queue();
 		if (!card->qdio.c_q) {
-			rc = -1;
-			goto kmsg_out;
+			dev_err(&card->gdev->dev, "Failed to create completion queue\n");
+			return -ENOMEM;
 		}
+
 		card->qdio.no_in_queues = 2;
-		card->qdio.out_bufstates =
-			kcalloc(card->qdio.no_out_queues *
-					QDIO_MAX_BUFFERS_PER_Q,
-				sizeof(struct qdio_outbuf_state),
-				GFP_KERNEL);
-		outbuf_states = card->qdio.out_bufstates;
-		if (outbuf_states == NULL) {
-			rc = -1;
-			goto free_cq_out;
-		}
-		for (i = 0; i < card->qdio.no_out_queues; ++i) {
-			card->qdio.out_qs[i]->bufstates = outbuf_states;
-			outbuf_states += QDIO_MAX_BUFFERS_PER_Q;
-		}
 	} else {
 		QETH_CARD_TEXT(card, 2, "nocq");
 		card->qdio.c_q = NULL;
 		card->qdio.no_in_queues = 1;
 	}
 	QETH_CARD_TEXT_(card, 2, "iqc%d", card->qdio.no_in_queues);
-	rc = 0;
-out:
-	return rc;
-free_cq_out:
-	qeth_free_qdio_queue(card->qdio.c_q);
-	card->qdio.c_q = NULL;
-kmsg_out:
-	dev_err(&card->gdev->dev, "Failed to create completion queue\n");
-	goto out;
+	return 0;
 }
 
 static void qeth_free_cq(struct qeth_card *card)
@@ -434,8 +407,6 @@ static void qeth_free_cq(struct qeth_card *card)
 		qeth_free_qdio_queue(card->qdio.c_q);
 		card->qdio.c_q = NULL;
 	}
-	kfree(card->qdio.out_bufstates);
-	card->qdio.out_bufstates = NULL;
 }
 
 static enum iucv_tx_notify qeth_compute_cq_notification(int sbalf15,
@@ -487,12 +458,12 @@ static void qeth_qdio_handle_aob(struct qeth_card *card,
 	switch (atomic_xchg(&buffer->state, new_state)) {
 	case QETH_QDIO_BUF_PRIMED:
 		/* Faster than TX completion code, let it handle the async
-		 * completion for us.
+		 * completion for us. It will also recycle the QAOB.
 		 */
 		break;
 	case QETH_QDIO_BUF_PENDING:
 		/* TX completion code is active and will handle the async
-		 * completion for us.
+		 * completion for us. It will also recycle the QAOB.
 		 */
 		break;
 	case QETH_QDIO_BUF_NEED_QAOB:
@@ -501,7 +472,7 @@ static void qeth_qdio_handle_aob(struct qeth_card *card,
 		qeth_notify_skbs(buffer->q, buffer, notification);
 
 		/* Free dangling allocations. The attached skbs are handled by
-		 * qeth_tx_complete_pending_bufs().
+		 * qeth_tx_complete_pending_bufs(), and so is the QAOB.
 		 */
 		for (i = 0;
 		     i < aob->sb_count && i < QETH_MAX_BUFFER_ELEMENTS(card);
@@ -520,8 +491,6 @@ static void qeth_qdio_handle_aob(struct qeth_card *card,
 	default:
 		WARN_ON_ONCE(1);
 	}
-
-	qdio_release_aob(aob);
 }
 
 static void qeth_setup_ccw(struct ccw1 *ccw, u8 cmd_code, u8 flags, u32 len,
@@ -1451,6 +1420,13 @@ static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
 	atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
 }
 
+static void qeth_free_out_buf(struct qeth_qdio_out_buffer *buf)
+{
+	if (buf->aob)
+		qdio_release_aob(buf->aob);
+	kmem_cache_free(qeth_qdio_outbuf_cache, buf);
+}
+
 static void qeth_tx_complete_pending_bufs(struct qeth_card *card,
 					  struct qeth_qdio_out_q *queue,
 					  bool drain)
@@ -1468,7 +1444,7 @@ static void qeth_tx_complete_pending_bufs(struct qeth_card *card,
 			qeth_tx_complete_buf(buf, drain, 0);
 
 			list_del(&buf->list_entry);
-			kmem_cache_free(qeth_qdio_outbuf_cache, buf);
+			qeth_free_out_buf(buf);
 		}
 	}
 }
@@ -1485,7 +1461,7 @@ static void qeth_drain_output_queue(struct qeth_qdio_out_q *q, bool free)
 
 		qeth_clear_output_buffer(q, q->bufs[j], true, 0);
 		if (free) {
-			kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[j]);
+			qeth_free_out_buf(q->bufs[j]);
 			q->bufs[j] = NULL;
 		}
 	}
@@ -2637,7 +2613,7 @@ static struct qeth_qdio_out_q *qeth_alloc_output_queue(void)
 
 err_out_bufs:
 	while (i > 0)
-		kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[--i]);
+		qeth_free_out_buf(q->bufs[--i]);
 	qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q);
 err_qdio_bufs:
 	kfree(q);
@@ -3024,7 +3000,8 @@ static int qeth_init_qdio_queues(struct qeth_card *card)
 	}
 
 	card->qdio.in_q->next_buf_to_init = QDIO_BUFNR(rx_bufs);
-	rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0, rx_bufs);
+	rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0, rx_bufs,
+		     NULL);
 	if (rc) {
 		QETH_CARD_TEXT_(card, 2, "1err%d", rc);
 		return rc;
@@ -3516,7 +3493,7 @@ static unsigned int qeth_rx_refill_queue(struct qeth_card *card,
 		}
 
 		rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0,
-			     queue->next_buf_to_init, count);
+			     queue->next_buf_to_init, count, NULL);
 		if (rc) {
 			QETH_CARD_TEXT(card, 2, "qinberr");
 		}
@@ -3625,6 +3602,7 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
 	struct qeth_qdio_out_buffer *buf = queue->bufs[index];
 	unsigned int qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
 	struct qeth_card *card = queue->card;
+	struct qaob *aob = NULL;
 	int rc;
 	int i;
 
@@ -3637,16 +3615,24 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
 				SBAL_EFLAGS_LAST_ENTRY;
 		queue->coalesced_frames += buf->frames;
 
-		if (queue->bufstates)
-			queue->bufstates[bidx].user = buf;
-
 		if (IS_IQD(card)) {
 			skb_queue_walk(&buf->skb_list, skb)
 				skb_tx_timestamp(skb);
 		}
 	}
 
-	if (!IS_IQD(card)) {
+	if (IS_IQD(card)) {
+		if (card->options.cq == QETH_CQ_ENABLED &&
+		    !qeth_iqd_is_mcast_queue(card, queue) &&
+		    count == 1) {
+			if (!buf->aob)
+				buf->aob = qdio_allocate_aob();
+			if (buf->aob) {
+				aob = buf->aob;
+				aob->user1 = (u64) buf;
+			}
+		}
+	} else {
 		if (!queue->do_pack) {
 			if ((atomic_read(&queue->used_buffers) >=
 				(QETH_HIGH_WATERMARK_PACK -
@@ -3677,8 +3663,8 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
 	}
 
 	QETH_TXQ_STAT_INC(queue, doorbell);
-	rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
-		     queue->queue_no, index, count);
+	rc = do_QDIO(CARD_DDEV(card), qdio_flags, queue->queue_no, index, count,
+		     aob);
 
 	switch (rc) {
 	case 0:
@@ -3814,8 +3800,7 @@ static void qeth_qdio_cq_handler(struct qeth_card *card, unsigned int qdio_err,
 		qeth_scrub_qdio_buffer(buffer, QDIO_MAX_ELEMENTS_PER_BUFFER);
 	}
 	rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue,
-		    card->qdio.c_q->next_buf_to_init,
-		    count);
+		     cq->next_buf_to_init, count, NULL);
 	if (rc) {
 		dev_warn(&card->gdev->dev,
 			"QDIO reported an error, rc=%i\n", rc);
@@ -5270,7 +5255,6 @@ static int qeth_qdio_establish(struct qeth_card *card)
 	init_data.int_parm               = (unsigned long) card;
 	init_data.input_sbal_addr_array  = in_sbal_ptrs;
 	init_data.output_sbal_addr_array = out_sbal_ptrs;
-	init_data.output_sbal_state_array = card->qdio.out_bufstates;
 	init_data.scan_threshold	 = IS_IQD(card) ? 0 : 32;
 
 	if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
@@ -6069,7 +6053,15 @@ static void qeth_iqd_tx_complete(struct qeth_qdio_out_q *queue,
 	bool error = !!qdio_error;
 
 	if (qdio_error == QDIO_ERROR_SLSB_PENDING) {
-		WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED);
+		struct qaob *aob = buffer->aob;
+
+		if (!aob) {
+			netdev_WARN_ONCE(card->dev,
+					 "Pending TX buffer %#x without QAOB on TX queue %u\n",
+					 bidx, queue->queue_no);
+			qeth_schedule_recovery(card);
+			return;
+		}
 
 		QETH_CARD_TEXT_(card, 5, "pel%u", bidx);
 
@@ -6125,6 +6117,8 @@ static void qeth_iqd_tx_complete(struct qeth_qdio_out_q *queue,
 		default:
 			WARN_ON_ONCE(1);
 		}
+
+		memset(aob, 0, sizeof(*aob));
 	} else if (card->options.cq == QETH_CQ_ENABLED) {
 		qeth_notify_skbs(queue, buffer,
 				 qeth_compute_cq_notification(sflags, 0));
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index 23ab16d65f2a..049596cbfb5d 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -128,7 +128,7 @@ static void zfcp_qdio_int_resp(struct ccw_device *cdev, unsigned int qdio_err,
 	/*
 	 * put SBALs back to response queue
 	 */
-	if (do_QDIO(cdev, QDIO_FLAG_SYNC_INPUT, 0, idx, count))
+	if (do_QDIO(cdev, QDIO_FLAG_SYNC_INPUT, 0, idx, count, NULL))
 		zfcp_erp_adapter_reopen(qdio->adapter, 0, "qdires2");
 }
 
@@ -298,7 +298,7 @@ int zfcp_qdio_send(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req)
 	atomic_sub(sbal_number, &qdio->req_q_free);
 
 	retval = do_QDIO(qdio->adapter->ccw_device, QDIO_FLAG_SYNC_OUTPUT, 0,
-			 q_req->sbal_first, sbal_number);
+			 q_req->sbal_first, sbal_number, NULL);
 
 	if (unlikely(retval)) {
 		/* Failed to submit the IO, roll back our modifications. */
@@ -463,7 +463,8 @@ int zfcp_qdio_open(struct zfcp_qdio *qdio)
 		sbale->addr = 0;
 	}
 
-	if (do_QDIO(cdev, QDIO_FLAG_SYNC_INPUT, 0, 0, QDIO_MAX_BUFFERS_PER_Q))
+	if (do_QDIO(cdev, QDIO_FLAG_SYNC_INPUT, 0, 0, QDIO_MAX_BUFFERS_PER_Q,
+		    NULL))
 		goto failed_qdio;
 
 	/* set index of first available SBALS / number of available SBALS */