Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1745 commits)
  dp83640: free packet queues on remove
  dp83640: use proper function to free transmit time stamping packets
  ipv6: Do not use routes from locally generated RAs
  |PATCH net-next] tg3: add tx_dropped counter
  be2net: don't create multiple RX/TX rings in multi channel mode
  be2net: don't create multiple TXQs in BE2
  be2net: refactor VF setup/teardown code into be_vf_setup/clear()
  be2net: add vlan/rx-mode/flow-control config to be_setup()
  net_sched: cls_flow: use skb_header_pointer()
  ipv4: avoid useless call of the function check_peer_pmtu
  TCP: remove TCP_DEBUG
  net: Fix driver name for mdio-gpio.c
  ipv4: tcp: fix TOS value in ACK messages sent from TIME_WAIT
  rtnetlink: Add missing manual netlink notification in dev_change_net_namespaces
  ipv4: fix ipsec forward performance regression
  jme: fix irq storm after suspend/resume
  route: fix ICMP redirect validation
  net: hold sock reference while processing tx timestamps
  tcp: md5: add more const attributes
  Add ethtool -g support to virtio_net
  ...

Fix up conflicts in:
 - drivers/net/Kconfig:
	The split-up generated a trivial conflict with removal of a
	stale reference to Documentation/networking/net-modules.txt.
	Remove it from the new location instead.
 - fs/sysfs/dir.c:
	Fairly nasty conflicts with the sysfs rb-tree usage, conflicting
	with Eric Biederman's changes for tagged directories.

5 files changed, 338 insertions, 82 deletions

diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index e5c966462c5..3dd86441da3 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -44,6 +44,7 @@ enum qdio_irq_states {
 #define SLSB_STATE_NOT_INIT	0x0
 #define SLSB_STATE_EMPTY	0x1
 #define SLSB_STATE_PRIMED	0x2
+#define SLSB_STATE_PENDING	0x3
 #define SLSB_STATE_HALTED	0xe
 #define SLSB_STATE_ERROR	0xf
 #define SLSB_TYPE_INPUT		0x0
@@ -67,6 +68,8 @@ enum qdio_irq_states {
 	(SLSB_OWNER_PROG | SLSB_TYPE_OUTPUT | SLSB_STATE_NOT_INIT) /* 0xa0 */
 #define SLSB_P_OUTPUT_EMPTY	\
 	(SLSB_OWNER_PROG | SLSB_TYPE_OUTPUT | SLSB_STATE_EMPTY)	   /* 0xa1 */
+#define SLSB_P_OUTPUT_PENDING \
+	(SLSB_OWNER_PROG | SLSB_TYPE_OUTPUT | SLSB_STATE_PENDING)  /* 0xa3 */
 #define SLSB_CU_OUTPUT_PRIMED	\
 	(SLSB_OWNER_CU | SLSB_TYPE_OUTPUT | SLSB_STATE_PRIMED)	   /* 0x62 */
 #define SLSB_P_OUTPUT_HALTED	\
@@ -84,19 +87,11 @@ enum qdio_irq_states {
 #define CHSC_FLAG_QDIO_CAPABILITY	0x80
 #define CHSC_FLAG_VALIDITY		0x40
 
-/* qdio adapter-characteristics-1 flag */
-#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 */
-#define AC1_AUTOMATIC_SYNC_ON_THININT	0x08	/* set by hypervisor */
-#define AC1_AUTOMATIC_SYNC_ON_OUT_PCI	0x04	/* set by hypervisor */
-#define AC1_SC_QEBSM_AVAILABLE		0x02	/* available for subchannel */
-#define AC1_SC_QEBSM_ENABLED		0x01	/* enabled for subchannel */
-
 /* SIGA flags */
 #define QDIO_SIGA_WRITE		0x00
 #define QDIO_SIGA_READ		0x01
 #define QDIO_SIGA_SYNC		0x02
+#define QDIO_SIGA_WRITEQ	0x04
 #define QDIO_SIGA_QEBSM_FLAG	0x80
 
 #ifdef CONFIG_64BIT
@@ -253,6 +248,12 @@ 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;
 	/* used SBALs before tasklet schedule */
@@ -432,9 +433,20 @@ struct indicator_t {
 
 extern struct indicator_t *q_indicators;
 
-static inline int shared_ind(u32 *dsci)
+static inline int has_multiple_inq_on_dsci(struct qdio_irq *irq)
+{
+	return irq->nr_input_qs > 1;
+}
+
+static inline int references_shared_dsci(struct qdio_irq *irq)
 {
-	return dsci == &q_indicators[TIQDIO_SHARED_IND].ind;
+	return irq->dsci == &q_indicators[TIQDIO_SHARED_IND].ind;
+}
+
+static inline int shared_ind(struct qdio_q *q)
+{
+	struct qdio_irq *i = q->irq_ptr;
+	return references_shared_dsci(i) || has_multiple_inq_on_dsci(i);
 }
 
 /* prototypes for thin interrupt */
@@ -449,6 +461,7 @@ void tiqdio_free_memory(void);
 int tiqdio_register_thinints(void);
 void tiqdio_unregister_thinints(void);
 
+
 /* prototypes for setup */
 void qdio_inbound_processing(unsigned long data);
 void qdio_outbound_processing(unsigned long data);
@@ -469,6 +482,9 @@ int qdio_setup_create_sysfs(struct ccw_device *cdev);
 void qdio_setup_destroy_sysfs(struct ccw_device *cdev);
 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_debug.c b/drivers/s390/cio/qdio_debug.c
index 0e615cb912d..aaf7f935bfd 100644
--- a/drivers/s390/cio/qdio_debug.c
+++ b/drivers/s390/cio/qdio_debug.c
@@ -76,6 +76,9 @@ static int qstat_show(struct seq_file *m, void *v)
 		case SLSB_P_OUTPUT_NOT_INIT:
 			seq_printf(m, "N");
 			break;
+		case SLSB_P_OUTPUT_PENDING:
+			seq_printf(m, "P");
+			break;
 		case SLSB_P_INPUT_PRIMED:
 		case SLSB_CU_OUTPUT_PRIMED:
 			seq_printf(m, "+");
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 288c9140290..9a122280246 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -14,6 +14,7 @@
 #include <linux/timer.h>
 #include <linux/delay.h>
 #include <linux/gfp.h>
+#include <linux/io.h>
 #include <linux/kernel_stat.h>
 #include <linux/atomic.h>
 #include <asm/debug.h>
@@ -77,11 +78,13 @@ static inline int do_siga_input(unsigned long schid, unsigned int mask,
  * Note: For IQDC unicast queues only the highest priority queue is processed.
  */
 static inline int do_siga_output(unsigned long schid, unsigned long mask,
-				 unsigned int *bb, unsigned int fc)
+				 unsigned int *bb, unsigned int fc,
+				 unsigned long aob)
 {
 	register unsigned long __fc asm("0") = fc;
 	register unsigned long __schid asm("1") = schid;
 	register unsigned long __mask asm("2") = mask;
+	register unsigned long __aob asm("3") = aob;
 	int cc = QDIO_ERROR_SIGA_ACCESS_EXCEPTION;
 
 	asm volatile(
@@ -90,7 +93,8 @@ static inline int do_siga_output(unsigned long schid, unsigned long mask,
 		"	srl	%0,28\n"
 		"1:\n"
 		EX_TABLE(0b, 1b)
-		: "+d" (cc), "+d" (__fc), "+d" (__schid), "+d" (__mask)
+		: "+d" (cc), "+d" (__fc), "+d" (__schid), "+d" (__mask),
+		  "+d" (__aob)
 		: : "cc", "memory");
 	*bb = ((unsigned int) __fc) >> 31;
 	return cc;
@@ -212,7 +216,7 @@ again:
 /* returns number of examined buffers and their common state in *state */
 static inline int get_buf_states(struct qdio_q *q, unsigned int bufnr,
 				 unsigned char *state, unsigned int count,
-				 int auto_ack)
+				 int auto_ack, int merge_pending)
 {
 	unsigned char __state = 0;
 	int i;
@@ -224,9 +228,14 @@ static inline int get_buf_states(struct qdio_q *q, unsigned int bufnr,
 		return qdio_do_eqbs(q, state, bufnr, count, auto_ack);
 
 	for (i = 0; i < count; i++) {
-		if (!__state)
+		if (!__state) {
 			__state = q->slsb.val[bufnr];
-		else if (q->slsb.val[bufnr] != __state)
+			if (merge_pending && __state == SLSB_P_OUTPUT_PENDING)
+				__state = SLSB_P_OUTPUT_EMPTY;
+		} else if (merge_pending) {
+			if ((q->slsb.val[bufnr] & __state) != __state)
+				break;
+		} else if (q->slsb.val[bufnr] != __state)
 			break;
 		bufnr = next_buf(bufnr);
 	}
@@ -237,7 +246,7 @@ static inline int get_buf_states(struct qdio_q *q, unsigned int bufnr,
 static inline int get_buf_state(struct qdio_q *q, unsigned int bufnr,
 				unsigned char *state, int auto_ack)
 {
-	return get_buf_states(q, bufnr, state, 1, auto_ack);
+	return get_buf_states(q, bufnr, state, 1, auto_ack, 0);
 }
 
 /* wrap-around safe setting of slsb states, returns number of changed buffers */
@@ -308,19 +317,28 @@ static inline int qdio_siga_sync_q(struct qdio_q *q)
 		return qdio_siga_sync(q, q->mask, 0);
 }
 
-static int qdio_siga_output(struct qdio_q *q, unsigned int *busy_bit)
+static int qdio_siga_output(struct qdio_q *q, unsigned int *busy_bit,
+	unsigned long aob)
 {
 	unsigned long schid = *((u32 *) &q->irq_ptr->schid);
 	unsigned int fc = QDIO_SIGA_WRITE;
 	u64 start_time = 0;
 	int retries = 0, cc;
+	unsigned long laob = 0;
+
+	if (q->u.out.use_cq && aob != 0) {
+		fc = QDIO_SIGA_WRITEQ;
+		laob = aob;
+	}
 
 	if (is_qebsm(q)) {
 		schid = q->irq_ptr->sch_token;
 		fc |= QDIO_SIGA_QEBSM_FLAG;
 	}
 again:
-	cc = do_siga_output(schid, q->mask, busy_bit, fc);
+	WARN_ON_ONCE((aob && queue_type(q) != QDIO_IQDIO_QFMT) ||
+		(aob && fc != QDIO_SIGA_WRITEQ));
+	cc = do_siga_output(schid, q->mask, busy_bit, fc, laob);
 
 	/* hipersocket busy condition */
 	if (unlikely(*busy_bit)) {
@@ -379,7 +397,7 @@ int debug_get_buf_state(struct qdio_q *q, unsigned int bufnr,
 {
 	if (need_siga_sync(q))
 		qdio_siga_sync_q(q);
-	return get_buf_states(q, bufnr, state, 1, 0);
+	return get_buf_states(q, bufnr, state, 1, 0, 0);
 }
 
 static inline void qdio_stop_polling(struct qdio_q *q)
@@ -507,7 +525,7 @@ static int get_inbound_buffer_frontier(struct qdio_q *q)
 	 * No siga sync here, as a PCI or we after a thin interrupt
 	 * already sync'ed the queues.
 	 */
-	count = get_buf_states(q, q->first_to_check, &state, count, 1);
+	count = get_buf_states(q, q->first_to_check, &state, count, 1, 0);
 	if (!count)
 		goto out;
 
@@ -590,6 +608,107 @@ static inline int qdio_inbound_q_done(struct qdio_q *q)
 		return 0;
 }
 
+static inline int contains_aobs(struct qdio_q *q)
+{
+	return !q->is_input_q && q->u.out.use_cq;
+}
+
+static inline void qdio_trace_aob(struct qdio_irq *irq, struct qdio_q *q,
+				int i, struct qaob *aob)
+{
+	int tmp;
+
+	DBF_DEV_EVENT(DBF_INFO, irq, "AOB%d:%lx", i,
+			(unsigned long) virt_to_phys(aob));
+	DBF_DEV_EVENT(DBF_INFO, irq, "RES00:%lx",
+			(unsigned long) aob->res0[0]);
+	DBF_DEV_EVENT(DBF_INFO, irq, "RES01:%lx",
+			(unsigned long) aob->res0[1]);
+	DBF_DEV_EVENT(DBF_INFO, irq, "RES02:%lx",
+			(unsigned long) aob->res0[2]);
+	DBF_DEV_EVENT(DBF_INFO, irq, "RES03:%lx",
+			(unsigned long) aob->res0[3]);
+	DBF_DEV_EVENT(DBF_INFO, irq, "RES04:%lx",
+			(unsigned long) aob->res0[4]);
+	DBF_DEV_EVENT(DBF_INFO, irq, "RES05:%lx",
+			(unsigned long) aob->res0[5]);
+	DBF_DEV_EVENT(DBF_INFO, irq, "RES1:%x", aob->res1);
+	DBF_DEV_EVENT(DBF_INFO, irq, "RES2:%x", aob->res2);
+	DBF_DEV_EVENT(DBF_INFO, irq, "RES3:%x", aob->res3);
+	DBF_DEV_EVENT(DBF_INFO, irq, "AORC:%u", aob->aorc);
+	DBF_DEV_EVENT(DBF_INFO, irq, "FLAGS:%u", aob->flags);
+	DBF_DEV_EVENT(DBF_INFO, irq, "CBTBS:%u", aob->cbtbs);
+	DBF_DEV_EVENT(DBF_INFO, irq, "SBC:%u", aob->sb_count);
+	for (tmp = 0; tmp < QDIO_MAX_ELEMENTS_PER_BUFFER; ++tmp) {
+		DBF_DEV_EVENT(DBF_INFO, irq, "SBA%d:%lx", tmp,
+				(unsigned long) aob->sba[tmp]);
+		DBF_DEV_EVENT(DBF_INFO, irq, "rSBA%d:%lx", tmp,
+				(unsigned long) q->sbal[i]->element[tmp].addr);
+		DBF_DEV_EVENT(DBF_INFO, irq, "DC%d:%u", tmp, aob->dcount[tmp]);
+		DBF_DEV_EVENT(DBF_INFO, irq, "rDC%d:%u", tmp,
+				q->sbal[i]->element[tmp].length);
+	}
+	DBF_DEV_EVENT(DBF_INFO, irq, "USER0:%lx", (unsigned long) aob->user0);
+	for (tmp = 0; tmp < 2; ++tmp) {
+		DBF_DEV_EVENT(DBF_INFO, irq, "RES4%d:%lx", tmp,
+			(unsigned long) aob->res4[tmp]);
+	}
+	DBF_DEV_EVENT(DBF_INFO, irq, "USER1:%lx", (unsigned long) aob->user1);
+	DBF_DEV_EVENT(DBF_INFO, irq, "USER2:%lx", (unsigned long) aob->user2);
+}
+
+static inline void qdio_handle_aobs(struct qdio_q *q, int start, int count)
+{
+	unsigned char state = 0;
+	int j, b = start;
+
+	if (!contains_aobs(q))
+		return;
+
+	for (j = 0; j < count; ++j) {
+		get_buf_state(q, b, &state, 0);
+		if (state == SLSB_P_OUTPUT_PENDING) {
+			struct qaob *aob = q->u.out.aobs[b];
+			if (aob == NULL)
+				continue;
+
+			BUG_ON(q->u.out.sbal_state == NULL);
+			q->u.out.sbal_state[b].flags |=
+				QDIO_OUTBUF_STATE_FLAG_PENDING;
+			q->u.out.aobs[b] = NULL;
+		} else if (state == SLSB_P_OUTPUT_EMPTY) {
+			BUG_ON(q->u.out.sbal_state == NULL);
+			q->u.out.sbal_state[b].aob = NULL;
+		}
+		b = next_buf(b);
+	}
+}
+
+static inline unsigned long qdio_aob_for_buffer(struct qdio_output_q *q,
+					int bufnr)
+{
+	unsigned long phys_aob = 0;
+
+	if (!q->use_cq)
+		goto out;
+
+	if (!q->aobs[bufnr]) {
+		struct qaob *aob = qdio_allocate_aob();
+		q->aobs[bufnr] = aob;
+	}
+	if (q->aobs[bufnr]) {
+		BUG_ON(q->sbal_state == NULL);
+		q->sbal_state[bufnr].flags = QDIO_OUTBUF_STATE_FLAG_NONE;
+		q->sbal_state[bufnr].aob = q->aobs[bufnr];
+		q->aobs[bufnr]->user1 = (u64) q->sbal_state[bufnr].user;
+		phys_aob = virt_to_phys(q->aobs[bufnr]);
+		BUG_ON(phys_aob & 0xFF);
+	}
+
+out:
+	return phys_aob;
+}
+
 static void qdio_kick_handler(struct qdio_q *q)
 {
 	int start = q->first_to_kick;
@@ -610,6 +729,8 @@ static void qdio_kick_handler(struct qdio_q *q)
 			      start, count);
 	}
 
+	qdio_handle_aobs(q, start, count);
+
 	q->handler(q->irq_ptr->cdev, q->qdio_error, q->nr, start, count,
 		   q->irq_ptr->int_parm);
 
@@ -672,23 +793,26 @@ static int get_outbound_buffer_frontier(struct qdio_q *q)
 	 */
 	count = min(atomic_read(&q->nr_buf_used), QDIO_MAX_BUFFERS_MASK);
 	stop = add_buf(q->first_to_check, count);
-
 	if (q->first_to_check == stop)
-		return q->first_to_check;
+		goto out;
 
-	count = get_buf_states(q, q->first_to_check, &state, count, 0);
+	count = get_buf_states(q, q->first_to_check, &state, count, 0, 1);
 	if (!count)
-		return q->first_to_check;
+		goto out;
 
 	switch (state) {
+	case SLSB_P_OUTPUT_PENDING:
+		BUG();
 	case SLSB_P_OUTPUT_EMPTY:
 		/* the adapter got it */
-		DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "out empty:%1d %02x", q->nr, count);
+		DBF_DEV_EVENT(DBF_INFO, q->irq_ptr,
+			"out empty:%1d %02x", q->nr, count);
 
 		atomic_sub(count, &q->nr_buf_used);
 		q->first_to_check = add_buf(q->first_to_check, count);
 		if (q->irq_ptr->perf_stat_enabled)
 			account_sbals(q, count);
+
 		break;
 	case SLSB_P_OUTPUT_ERROR:
 		process_buffer_error(q, count);
@@ -701,7 +825,8 @@ static int get_outbound_buffer_frontier(struct qdio_q *q)
 		/* the adapter has not fetched the output yet */
 		if (q->irq_ptr->perf_stat_enabled)
 			q->q_stats.nr_sbal_nop++;
-		DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "out primed:%1d", q->nr);
+		DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "out primed:%1d",
+			      q->nr);
 		break;
 	case SLSB_P_OUTPUT_NOT_INIT:
 	case SLSB_P_OUTPUT_HALTED:
@@ -709,6 +834,8 @@ static int get_outbound_buffer_frontier(struct qdio_q *q)
 	default:
 		BUG();
 	}
+
+out:
 	return q->first_to_check;
 }
 
@@ -732,7 +859,7 @@ static inline int qdio_outbound_q_moved(struct qdio_q *q)
 		return 0;
 }
 
-static int qdio_kick_outbound_q(struct qdio_q *q)
+static int qdio_kick_outbound_q(struct qdio_q *q, unsigned long aob)
 {
 	int retries = 0, cc;
 	unsigned int busy_bit;
@@ -744,7 +871,7 @@ static int qdio_kick_outbound_q(struct qdio_q *q)
 retry:
 	qperf_inc(q, siga_write);
 
-	cc = qdio_siga_output(q, &busy_bit);
+	cc = qdio_siga_output(q, &busy_bit, aob);
 	switch (cc) {
 	case 0:
 		break;
@@ -921,8 +1048,9 @@ static void qdio_int_handler_pci(struct qdio_irq *irq_ptr)
 			}
 			q->u.in.queue_start_poll(q->irq_ptr->cdev, q->nr,
 						 q->irq_ptr->int_parm);
-		} else
+		} else {
 			tasklet_schedule(&q->tasklet);
+		}
 	}
 
 	if (!pci_out_supported(q))
@@ -1236,6 +1364,26 @@ out_err:
 }
 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 (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);
+}
+
 /**
  * qdio_establish - establish queues on a qdio subchannel
  * @init_data: initialization data
@@ -1301,6 +1449,8 @@ int qdio_establish(struct qdio_initialize *init_data)
 	qdio_setup_ssqd_info(irq_ptr);
 	DBF_EVENT("qib ac:%4x", irq_ptr->qib.ac);
 
+	qdio_detect_hsicq(irq_ptr);
+
 	/* qebsm is now setup if available, initialize buffer states */
 	qdio_init_buf_states(irq_ptr);
 
@@ -1442,12 +1592,9 @@ set:
 	used = atomic_add_return(count, &q->nr_buf_used) - count;
 	BUG_ON(used + count > QDIO_MAX_BUFFERS_PER_Q);
 
-	/* no need to signal as long as the adapter had free buffers */
-	if (used)
-		return 0;
-
 	if (need_siga_in(q))
 		return qdio_siga_input(q);
+
 	return 0;
 }
 
@@ -1480,17 +1627,21 @@ 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) {
-		/* One SIGA-W per buffer required for unicast HiperSockets. */
+		unsigned long phys_aob = 0;
+
+		/* One SIGA-W per buffer required for unicast HSI */
 		WARN_ON_ONCE(count > 1 && !multicast_outbound(q));
 
-		rc = qdio_kick_outbound_q(q);
+		phys_aob = qdio_aob_for_buffer(&q->u.out, bufnr);
+
+		rc = qdio_kick_outbound_q(q, phys_aob);
 	} else if (need_siga_sync(q)) {
 		rc = qdio_siga_sync_q(q);
 	} else {
 		/* try to fast requeue buffers */
 		get_buf_state(q, prev_buf(bufnr), &state, 0);
 		if (state != SLSB_CU_OUTPUT_PRIMED)
-			rc = qdio_kick_outbound_q(q);
+			rc = qdio_kick_outbound_q(q, 0);
 		else
 			qperf_inc(q, fast_requeue);
 	}
@@ -1518,6 +1669,7 @@ int do_QDIO(struct ccw_device *cdev, unsigned int callflags,
 {
 	struct qdio_irq *irq_ptr;
 
+
 	if (bufnr >= QDIO_MAX_BUFFERS_PER_Q || count > QDIO_MAX_BUFFERS_PER_Q)
 		return -EINVAL;
 
@@ -1562,7 +1714,7 @@ int qdio_start_irq(struct ccw_device *cdev, int nr)
 
 	WARN_ON(queue_irqs_enabled(q));
 
-	if (!shared_ind(q->irq_ptr->dsci))
+	if (!shared_ind(q))
 		xchg(q->irq_ptr->dsci, 0);
 
 	qdio_stop_polling(q);
@@ -1572,7 +1724,7 @@ int qdio_start_irq(struct ccw_device *cdev, int nr)
 	 * We need to check again to not lose initiative after
 	 * resetting the ACK state.
 	 */
-	if (!shared_ind(q->irq_ptr->dsci) && *q->irq_ptr->dsci)
+	if (!shared_ind(q) && *q->irq_ptr->dsci)
 		goto rescan;
 	if (!qdio_inbound_q_done(q))
 		goto rescan;
diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c
index 89107d0938c..dd8bd670a6b 100644
--- a/drivers/s390/cio/qdio_setup.c
+++ b/drivers/s390/cio/qdio_setup.c
@@ -19,6 +19,22 @@
 #include "qdio_debug.h"
 
 static struct kmem_cache *qdio_q_cache;
+static struct kmem_cache *qdio_aob_cache;
+
+struct qaob *qdio_allocate_aob()
+{
+	struct qaob *aob;
+
+	aob = kmem_cache_zalloc(qdio_aob_cache, GFP_ATOMIC);
+	return aob;
+}
+EXPORT_SYMBOL_GPL(qdio_allocate_aob);
+
+void qdio_release_aob(struct qaob *aob)
+{
+	kmem_cache_free(qdio_aob_cache, aob);
+}
+EXPORT_SYMBOL_GPL(qdio_release_aob);
 
 /*
  * qebsm is only available under 64bit but the adapter sets the feature
@@ -154,29 +170,36 @@ static void setup_queues(struct qdio_irq *irq_ptr,
 	struct qdio_q *q;
 	void **input_sbal_array = qdio_init->input_sbal_addr_array;
 	void **output_sbal_array = qdio_init->output_sbal_addr_array;
+	struct qdio_outbuf_state *output_sbal_state_array =
+				  qdio_init->output_sbal_state_array;
 	int i;
 
 	for_each_input_queue(irq_ptr, q, i) {
-		DBF_EVENT("in-q:%1d", i);
+		DBF_EVENT("inq:%1d", i);
 		setup_queues_misc(q, irq_ptr, qdio_init->input_handler, i);
 
 		q->is_input_q = 1;
-		q->u.in.queue_start_poll = qdio_init->queue_start_poll;
+		q->u.in.queue_start_poll = qdio_init->queue_start_poll[i];
+
 		setup_storage_lists(q, irq_ptr, input_sbal_array, i);
 		input_sbal_array += QDIO_MAX_BUFFERS_PER_Q;
 
-		if (is_thinint_irq(irq_ptr))
+		if (is_thinint_irq(irq_ptr)) {
 			tasklet_init(&q->tasklet, tiqdio_inbound_processing,
 				     (unsigned long) q);
-		else
+		} else {
 			tasklet_init(&q->tasklet, qdio_inbound_processing,
 				     (unsigned long) q);
+		}
 	}
 
 	for_each_output_queue(irq_ptr, q, i) {
 		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;
 		q->u.out.scan_threshold = qdio_init->scan_threshold;
 		setup_storage_lists(q, irq_ptr, output_sbal_array, i);
@@ -311,6 +334,19 @@ void qdio_release_memory(struct qdio_irq *irq_ptr)
 	for (i = 0; i < QDIO_MAX_QUEUES_PER_IRQ; i++) {
 		q = irq_ptr->output_qs[i];
 		if (q) {
+			if (q->u.out.use_cq) {
+				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);
+			}
 			free_page((unsigned long) q->slib);
 			kmem_cache_free(qdio_q_cache, q);
 		}
@@ -465,23 +501,60 @@ 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 = kzalloc(sizeof(struct qaob *) * QDIO_MAX_BUFFERS_PER_Q,
+			     GFP_ATOMIC);
+	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;
+
 	qdio_q_cache = kmem_cache_create("qdio_q", sizeof(struct qdio_q),
 					 256, 0, NULL);
 	if (!qdio_q_cache)
 		return -ENOMEM;
 
+	qdio_aob_cache = kmem_cache_create("qdio_aob",
+					sizeof(struct qaob),
+					sizeof(struct qaob),
+					0,
+					NULL);
+	if (!qdio_aob_cache) {
+		rc = -ENOMEM;
+		goto free_qdio_q_cache;
+	}
+
 	/* Check for OSA/FCP thin interrupts (bit 67). */
 	DBF_EVENT("thinint:%1d",
 		  (css_general_characteristics.aif_osa) ? 1 : 0);
 
 	/* Check for QEBSM support in general (bit 58). */
 	DBF_EVENT("cssQEBSM:%1d", (qebsm_possible()) ? 1 : 0);
-	return 0;
+	rc = 0;
+out:
+	return rc;
+free_qdio_q_cache:
+	kmem_cache_destroy(qdio_q_cache);
+	goto out;
 }
 
 void qdio_setup_exit(void)
 {
+	kmem_cache_destroy(qdio_aob_cache);
 	kmem_cache_destroy(qdio_q_cache);
 }
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
index 2a1d4dfaf85..a3e3949d7b6 100644
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -67,12 +67,9 @@ static void put_indicator(u32 *addr)
 
 void tiqdio_add_input_queues(struct qdio_irq *irq_ptr)
 {
-	struct qdio_q *q;
-	int i;
-
 	mutex_lock(&tiq_list_lock);
-	for_each_input_queue(irq_ptr, q, i)
-		list_add_rcu(&q->entry, &tiq_list);
+	BUG_ON(irq_ptr->nr_input_qs < 1);
+	list_add_rcu(&irq_ptr->input_qs[0]->entry, &tiq_list);
 	mutex_unlock(&tiq_list_lock);
 	xchg(irq_ptr->dsci, 1 << 7);
 }
@@ -80,19 +77,17 @@ void tiqdio_add_input_queues(struct qdio_irq *irq_ptr)
 void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr)
 {
 	struct qdio_q *q;
-	int i;
 
-	for (i = 0; i < irq_ptr->nr_input_qs; i++) {
-		q = irq_ptr->input_qs[i];
-		/* if establish triggered an error */
-		if (!q || !q->entry.prev || !q->entry.next)
-			continue;
+	BUG_ON(irq_ptr->nr_input_qs < 1);
+	q = irq_ptr->input_qs[0];
+	/* if establish triggered an error */
+	if (!q || !q->entry.prev || !q->entry.next)
+		return;
 
-		mutex_lock(&tiq_list_lock);
-		list_del_rcu(&q->entry);
-		mutex_unlock(&tiq_list_lock);
-		synchronize_rcu();
-	}
+	mutex_lock(&tiq_list_lock);
+	list_del_rcu(&q->entry);
+	mutex_unlock(&tiq_list_lock);
+	synchronize_rcu();
 }
 
 static inline u32 clear_shared_ind(void)
@@ -102,6 +97,40 @@ static inline u32 clear_shared_ind(void)
 	return xchg(&q_indicators[TIQDIO_SHARED_IND].ind, 0);
 }
 
+static inline void tiqdio_call_inq_handlers(struct qdio_irq *irq)
+{
+	struct qdio_q *q;
+	int i;
+
+	for_each_input_queue(irq, q, i) {
+		if (!references_shared_dsci(irq) &&
+		    has_multiple_inq_on_dsci(irq))
+			xchg(q->irq_ptr->dsci, 0);
+
+		if (q->u.in.queue_start_poll) {
+			/* skip if polling is enabled or already in work */
+			if (test_and_set_bit(QDIO_QUEUE_IRQS_DISABLED,
+					     &q->u.in.queue_irq_state)) {
+				qperf_inc(q, int_discarded);
+				continue;
+			}
+
+			/* avoid dsci clear here, done after processing */
+			q->u.in.queue_start_poll(q->irq_ptr->cdev, q->nr,
+						 q->irq_ptr->int_parm);
+		} else {
+			if (!shared_ind(q))
+				xchg(q->irq_ptr->dsci, 0);
+
+			/*
+			 * Call inbound processing but not directly
+			 * since that could starve other thinint queues.
+			 */
+			tasklet_schedule(&q->tasklet);
+		}
+	}
+}
+
 /**
  * tiqdio_thinint_handler - thin interrupt handler for qdio
  * @alsi: pointer to adapter local summary indicator
@@ -120,35 +149,18 @@ static void tiqdio_thinint_handler(void *alsi, void *data)
 
 	/* check for work on all inbound thinint queues */
 	list_for_each_entry_rcu(q, &tiq_list, entry) {
+		struct qdio_irq *irq;
 
 		/* only process queues from changed sets */
-		if (unlikely(shared_ind(q->irq_ptr->dsci))) {
+		irq = q->irq_ptr;
+		if (unlikely(references_shared_dsci(irq))) {
 			if (!si_used)
 				continue;
-		} else if (!*q->irq_ptr->dsci)
+		} else if (!*irq->dsci)
 			continue;
 
-		if (q->u.in.queue_start_poll) {
-			/* skip if polling is enabled or already in work */
-			if (test_and_set_bit(QDIO_QUEUE_IRQS_DISABLED,
-					     &q->u.in.queue_irq_state)) {
-				qperf_inc(q, int_discarded);
-				continue;
-			}
+		tiqdio_call_inq_handlers(irq);
 
-			/* avoid dsci clear here, done after processing */
-			q->u.in.queue_start_poll(q->irq_ptr->cdev, q->nr,
-						 q->irq_ptr->int_parm);
-		} else {
-			/* only clear it if the indicator is non-shared */
-			if (!shared_ind(q->irq_ptr->dsci))
-				xchg(q->irq_ptr->dsci, 0);
-			/*
-			 * Call inbound processing but not directly
-			 * since that could starve other thinint queues.
-			 */
-			tasklet_schedule(&q->tasklet);
-		}
 		qperf_inc(q, adapter_int);
 	}
 	rcu_read_unlock();