[S390] qdio: new qdio driver.

List of major changes:
- split qdio driver into several files
- seperation of thin interrupt code
- improved handling for multiple thin interrupt devices
- inbound and outbound processing now always runs in tasklet context
- significant less tasklet schedules per interrupt needed
- merged qebsm with non-qebsm handling
- cleanup qdio interface and added kerneldoc
- coding style

Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Utz Bacher <utz.bacher@de.ibm.com>
Reviewed-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

10 files changed, 3482 insertions, 4476 deletions

diff --git a/drivers/s390/cio/Makefile b/drivers/s390/cio/Makefile
index 91e9e3f..bd79bd1 100644
--- a/drivers/s390/cio/Makefile
+++ b/drivers/s390/cio/Makefile
@@ -9,4 +9,6 @@ ccw_device-objs += device_id.o device_pgid.o device_status.o
 obj-y += ccw_device.o cmf.o
 obj-$(CONFIG_CHSC_SCH) += chsc_sch.o
 obj-$(CONFIG_CCWGROUP) += ccwgroup.o
+
+qdio-objs := qdio_main.o qdio_thinint.o qdio_debug.o qdio_perf.o qdio_setup.o
 obj-$(CONFIG_QDIO) += qdio.o
diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c
deleted file mode 100644
index 2bf36e1..0000000
--- a/drivers/s390/cio/qdio.c
+++ /dev/null
@@ -1,3929 +0,0 @@
-/*
- *
- * linux/drivers/s390/cio/qdio.c
- *
- * Linux for S/390 QDIO base support, Hipersocket base support
- * version 2
- *
- * Copyright 2000,2002 IBM Corporation
- * Author(s):             Utz Bacher <utz.bacher@de.ibm.com>
- * 2.6 cio integration by Cornelia Huck <cornelia.huck@de.ibm.com>
- *
- * Restriction: only 63 iqdio subchannels would have its own indicator,
- * after that, subsequent subchannels share one indicator
- *
- *
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/kernel.h>
-#include <linux/proc_fs.h>
-#include <linux/timer.h>
-#include <linux/mempool.h>
-#include <linux/semaphore.h>
-
-#include <asm/ccwdev.h>
-#include <asm/io.h>
-#include <asm/atomic.h>
-#include <asm/timex.h>
-
-#include <asm/debug.h>
-#include <asm/s390_rdev.h>
-#include <asm/qdio.h>
-#include <asm/airq.h>
-
-#include "cio.h"
-#include "css.h"
-#include "device.h"
-#include "qdio.h"
-#include "ioasm.h"
-#include "chsc.h"
-
-/****************** MODULE PARAMETER VARIABLES ********************/
-MODULE_AUTHOR("Utz Bacher <utz.bacher@de.ibm.com>");
-MODULE_DESCRIPTION("QDIO base support version 2, " \
-		   "Copyright 2000 IBM Corporation");
-MODULE_LICENSE("GPL");
-
-/******************** HERE WE GO ***********************************/
-
-static const char version[] = "QDIO base support version 2";
-
-static int qdio_performance_stats = 0;
-static int proc_perf_file_registration;
-static struct qdio_perf_stats perf_stats;
-
-static int hydra_thinints;
-static int is_passthrough = 0;
-static int omit_svs;
-
-static int indicator_used[INDICATORS_PER_CACHELINE];
-static __u32 * volatile indicators;
-static __u32 volatile spare_indicator;
-static atomic_t spare_indicator_usecount;
-#define QDIO_MEMPOOL_SCSSC_ELEMENTS 2
-static mempool_t *qdio_mempool_scssc;
-static struct kmem_cache *qdio_q_cache;
-
-static debug_info_t *qdio_dbf_setup;
-static debug_info_t *qdio_dbf_sbal;
-static debug_info_t *qdio_dbf_trace;
-static debug_info_t *qdio_dbf_sense;
-#ifdef CONFIG_QDIO_DEBUG
-static debug_info_t *qdio_dbf_slsb_out;
-static debug_info_t *qdio_dbf_slsb_in;
-#endif /* CONFIG_QDIO_DEBUG */
-
-/* iQDIO stuff: */
-static volatile struct qdio_q *tiq_list=NULL; /* volatile as it could change
-						 during a while loop */
-static DEFINE_SPINLOCK(ttiq_list_lock);
-static void *tiqdio_ind;
-static void tiqdio_tl(unsigned long);
-static DECLARE_TASKLET(tiqdio_tasklet,tiqdio_tl,0);
-
-/* not a macro, as one of the arguments is atomic_read */
-static inline int 
-qdio_min(int a,int b)
-{
-	if (a<b)
-		return a;
-	else
-		return b;
-}
-
-/***************** SCRUBBER HELPER ROUTINES **********************/
-#ifdef CONFIG_64BIT
-static inline void qdio_perf_stat_inc(atomic64_t *count)
-{
-	if (qdio_performance_stats)
-		atomic64_inc(count);
-}
-
-static inline void qdio_perf_stat_dec(atomic64_t *count)
-{
-	if (qdio_performance_stats)
-		atomic64_dec(count);
-}
-#else /* CONFIG_64BIT */
-static inline void qdio_perf_stat_inc(atomic_t *count)
-{
-	if (qdio_performance_stats)
-		atomic_inc(count);
-}
-
-static inline void qdio_perf_stat_dec(atomic_t *count)
-{
-	if (qdio_performance_stats)
-		atomic_dec(count);
-}
-#endif /* CONFIG_64BIT */
-
-static inline __u64 
-qdio_get_micros(void)
-{
-	return (get_clock() >> 12); /* time>>12 is microseconds */
-}
-
-/* 
- * unfortunately, we can't just xchg the values; in do_QDIO we want to reserve
- * the q in any case, so that we'll not be interrupted when we are in
- * qdio_mark_tiq... shouldn't have a really bad impact, as reserving almost
- * ever works (last famous words) 
- */
-static inline int 
-qdio_reserve_q(struct qdio_q *q)
-{
-	return atomic_add_return(1,&q->use_count) - 1;
-}
-
-static inline void 
-qdio_release_q(struct qdio_q *q)
-{
-	atomic_dec(&q->use_count);
-}
-
-/*check ccq  */
-static int
-qdio_check_ccq(struct qdio_q *q, unsigned int ccq)
-{
-	char dbf_text[15];
-
-	if (ccq == 0 || ccq == 32)
-		return 0;
-	if (ccq == 96 || ccq == 97)
-		return 1;
-	/*notify devices immediately*/
-	sprintf(dbf_text,"%d", ccq);
-	QDIO_DBF_TEXT2(1,trace,dbf_text);
-	return -EIO;
-}
-/* EQBS: extract buffer states */
-static int
-qdio_do_eqbs(struct qdio_q *q, unsigned char *state,
-	     unsigned int *start, unsigned int *cnt)
-{
-	struct qdio_irq *irq;
-	unsigned int tmp_cnt, q_no, ccq;
-	int rc ;
-	char dbf_text[15];
-
-	ccq = 0;
-	tmp_cnt = *cnt;
-	irq = (struct qdio_irq*)q->irq_ptr;
-	q_no = q->q_no;
-	if(!q->is_input_q)
-		q_no += irq->no_input_qs;
-again:
-	ccq = do_eqbs(irq->sch_token, state, q_no, start, cnt);
-	rc = qdio_check_ccq(q, ccq);
-	if ((ccq == 96) && (tmp_cnt != *cnt))
-		rc = 0;
-	if (rc == 1) {
-		QDIO_DBF_TEXT5(1,trace,"eqAGAIN");
-		goto again;
-	}
-	if (rc < 0) {
-                QDIO_DBF_TEXT2(1,trace,"eqberr");
-                sprintf(dbf_text,"%2x,%2x,%d,%d",tmp_cnt, *cnt, ccq, q_no);
-                QDIO_DBF_TEXT2(1,trace,dbf_text);
-		q->handler(q->cdev,QDIO_STATUS_ACTIVATE_CHECK_CONDITION|
-				QDIO_STATUS_LOOK_FOR_ERROR,
-				0, 0, 0, -1, -1, q->int_parm);
-		return 0;
-	}
-	return (tmp_cnt - *cnt);
-}
-
-/* SQBS: set buffer states */
-static int
-qdio_do_sqbs(struct qdio_q *q, unsigned char state,
-	     unsigned int *start, unsigned int *cnt)
-{
-	struct qdio_irq *irq;
-	unsigned int tmp_cnt, q_no, ccq;
-	int rc;
-	char dbf_text[15];
-
-	ccq = 0;
-	tmp_cnt = *cnt;
-	irq = (struct qdio_irq*)q->irq_ptr;
-	q_no = q->q_no;
-	if(!q->is_input_q)
-		q_no += irq->no_input_qs;
-again:
-	ccq = do_sqbs(irq->sch_token, state, q_no, start, cnt);
-	rc = qdio_check_ccq(q, ccq);
-	if (rc == 1) {
-		QDIO_DBF_TEXT5(1,trace,"sqAGAIN");
-		goto again;
-	}
-	if (rc < 0) {
-		QDIO_DBF_TEXT3(1,trace,"sqberr");
-		sprintf(dbf_text,"%2x,%2x",tmp_cnt,*cnt);
-		QDIO_DBF_TEXT3(1,trace,dbf_text);
-		sprintf(dbf_text,"%d,%d",ccq,q_no);
-		QDIO_DBF_TEXT3(1,trace,dbf_text);
-		q->handler(q->cdev,QDIO_STATUS_ACTIVATE_CHECK_CONDITION|
-				QDIO_STATUS_LOOK_FOR_ERROR,
-				0, 0, 0, -1, -1, q->int_parm);
-		return 0;
-	}
-	return (tmp_cnt - *cnt);
-}
-
-static inline int
-qdio_set_slsb(struct qdio_q *q, unsigned int *bufno,
-	      unsigned char state, unsigned int *count)
-{
-	volatile char *slsb;
-	struct qdio_irq *irq;
-
-	irq = (struct qdio_irq*)q->irq_ptr;
-	if (!irq->is_qebsm) {
-		slsb = (char *)&q->slsb.acc.val[(*bufno)];
-		xchg(slsb, state);
-		return 1;
-	}
-	return qdio_do_sqbs(q, state, bufno, count);
-}
-
-#ifdef CONFIG_QDIO_DEBUG
-static inline void
-qdio_trace_slsb(struct qdio_q *q)
-{
-	if (q->queue_type==QDIO_TRACE_QTYPE) {
-		if (q->is_input_q)
-			QDIO_DBF_HEX2(0,slsb_in,&q->slsb,
-				      QDIO_MAX_BUFFERS_PER_Q);
-		else
-			QDIO_DBF_HEX2(0,slsb_out,&q->slsb,
-				      QDIO_MAX_BUFFERS_PER_Q);
-	}
-}
-#endif
-
-static inline int
-set_slsb(struct qdio_q *q, unsigned int *bufno,
-	 unsigned char state, unsigned int *count)
-{
-	int rc;
-#ifdef CONFIG_QDIO_DEBUG
-	qdio_trace_slsb(q);
-#endif
-	rc = qdio_set_slsb(q, bufno, state, count);
-#ifdef CONFIG_QDIO_DEBUG
-	qdio_trace_slsb(q);
-#endif
-	return rc;
-}
-static inline int 
-qdio_siga_sync(struct qdio_q *q, unsigned int gpr2,
-	       unsigned int gpr3)
-{
-	int cc;
-
-	QDIO_DBF_TEXT4(0,trace,"sigasync");
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-
-	qdio_perf_stat_inc(&perf_stats.siga_syncs);
-
-	cc = do_siga_sync(q->schid, gpr2, gpr3);
-	if (cc)
-		QDIO_DBF_HEX3(0,trace,&cc,sizeof(int*));
-
-	return cc;
-}
-
-static inline int
-qdio_siga_sync_q(struct qdio_q *q)
-{
-	if (q->is_input_q)
-		return qdio_siga_sync(q, 0, q->mask);
-	return qdio_siga_sync(q, q->mask, 0);
-}
-
-static int
-__do_siga_output(struct qdio_q *q, unsigned int *busy_bit)
-{
-       struct qdio_irq *irq;
-       unsigned int fc = 0;
-       unsigned long schid;
-
-       irq = (struct qdio_irq *) q->irq_ptr;
-       if (!irq->is_qebsm)
-	       schid = *((u32 *)&q->schid);
-       else {
-	       schid = irq->sch_token;
-	       fc |= 0x80;
-       }
-       return do_siga_output(schid, q->mask, busy_bit, fc);
-}
-
-/* 
- * returns QDIO_SIGA_ERROR_ACCESS_EXCEPTION as cc, when SIGA returns
- * an access exception 
- */
-static int
-qdio_siga_output(struct qdio_q *q)
-{
-	int cc;
-	__u32 busy_bit;
-	__u64 start_time=0;
-
-	qdio_perf_stat_inc(&perf_stats.siga_outs);
-
-	QDIO_DBF_TEXT4(0,trace,"sigaout");
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-
-	for (;;) {
-		cc = __do_siga_output(q, &busy_bit);
-//QDIO_PRINT_ERR("cc=%x, busy=%x\n",cc,busy_bit);
-		if ((cc==2) && (busy_bit) && (q->is_iqdio_q)) {
-			if (!start_time) 
-				start_time=NOW;
-			if ((NOW-start_time)>QDIO_BUSY_BIT_PATIENCE)
-				break;
-		} else
-			break;
-	}
-	
-	if ((cc==2) && (busy_bit)) 
-		cc |= QDIO_SIGA_ERROR_B_BIT_SET;
-
-	if (cc)
-		QDIO_DBF_HEX3(0,trace,&cc,sizeof(int*));
-
-	return cc;
-}
-
-static int
-qdio_siga_input(struct qdio_q *q)
-{
-	int cc;
-
-	QDIO_DBF_TEXT4(0,trace,"sigain");
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-
-	qdio_perf_stat_inc(&perf_stats.siga_ins);
-
-	cc = do_siga_input(q->schid, q->mask);
-	
-	if (cc)
-		QDIO_DBF_HEX3(0,trace,&cc,sizeof(int*));
-
-	return cc;
-}
-
-/* locked by the locks in qdio_activate and qdio_cleanup */
-static __u32 *
-qdio_get_indicator(void)
-{
-	int i;
-
-	for (i = 0; i < INDICATORS_PER_CACHELINE; i++)
-		if (!indicator_used[i]) {
-			indicator_used[i]=1;
-			return indicators+i;
-		}
-	atomic_inc(&spare_indicator_usecount);
-	return (__u32 * volatile) &spare_indicator;
-}
-
-/* locked by the locks in qdio_activate and qdio_cleanup */
-static void 
-qdio_put_indicator(__u32 *addr)
-{
-	int i;
-
-	if ( (addr) && (addr!=&spare_indicator) ) {
-		i=addr-indicators;
-		indicator_used[i]=0;
-	}
-	if (addr == &spare_indicator)
-		atomic_dec(&spare_indicator_usecount);
-}
-
-static inline void
-tiqdio_clear_summary_bit(__u32 *location)
-{
-	QDIO_DBF_TEXT5(0,trace,"clrsummb");
-	QDIO_DBF_HEX5(0,trace,&location,sizeof(void*));
-
-	xchg(location,0);
-}
-
-static inline  void
-tiqdio_set_summary_bit(__u32 *location)
-{
-	QDIO_DBF_TEXT5(0,trace,"setsummb");
-	QDIO_DBF_HEX5(0,trace,&location,sizeof(void*));
-
-	xchg(location,-1);
-}
-
-static inline void 
-tiqdio_sched_tl(void)
-{
-	tasklet_hi_schedule(&tiqdio_tasklet);
-}
-
-static void
-qdio_mark_tiq(struct qdio_q *q)
-{
-	unsigned long flags;
-
-	QDIO_DBF_TEXT4(0,trace,"mark iq");
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-
-	spin_lock_irqsave(&ttiq_list_lock,flags);
-	if (unlikely(atomic_read(&q->is_in_shutdown)))
-		goto out_unlock;
-
-	if (!q->is_input_q)
-		goto out_unlock;
-
-	if ((q->list_prev) || (q->list_next)) 
-		goto out_unlock;
-
-	if (!tiq_list) {
-		tiq_list=q;
-		q->list_prev=q;
-		q->list_next=q;
-	} else {
-		q->list_next=tiq_list;
-		q->list_prev=tiq_list->list_prev;
-		tiq_list->list_prev->list_next=q;
-		tiq_list->list_prev=q;
-	}
-	spin_unlock_irqrestore(&ttiq_list_lock,flags);
-
-	tiqdio_set_summary_bit((__u32*)q->dev_st_chg_ind);
-	tiqdio_sched_tl();
-	return;
-out_unlock:
-	spin_unlock_irqrestore(&ttiq_list_lock,flags);
-	return;
-}
-
-static inline void
-qdio_mark_q(struct qdio_q *q)
-{
-	QDIO_DBF_TEXT4(0,trace,"mark q");
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-
-	if (unlikely(atomic_read(&q->is_in_shutdown)))
-		return;
-
-	tasklet_schedule(&q->tasklet);
-}
-
-static int
-qdio_stop_polling(struct qdio_q *q)
-{
-#ifdef QDIO_USE_PROCESSING_STATE
-       unsigned int tmp, gsf, count = 1;
-       unsigned char state = 0;
-       struct qdio_irq *irq = (struct qdio_irq *) q->irq_ptr;
-
-	if (!atomic_xchg(&q->polling,0))
-		return 1;
-
-	QDIO_DBF_TEXT4(0,trace,"stoppoll");
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-
-	/* show the card that we are not polling anymore */
-	if (!q->is_input_q)
-		return 1;
-
-       tmp = gsf = GET_SAVED_FRONTIER(q);
-       tmp = ((tmp + QDIO_MAX_BUFFERS_PER_Q-1) & (QDIO_MAX_BUFFERS_PER_Q-1) );
-       set_slsb(q, &tmp, SLSB_P_INPUT_NOT_INIT, &count);
-
-	/* 
-	 * we don't issue this SYNC_MEMORY, as we trust Rick T and
-	 * moreover will not use the PROCESSING state under VM, so
-	 * q->polling was 0 anyway
-	 */
-	/*SYNC_MEMORY;*/
-       if (irq->is_qebsm) {
-               count = 1;
-               qdio_do_eqbs(q, &state, &gsf, &count);
-       } else
-               state = q->slsb.acc.val[gsf];
-       if (state != SLSB_P_INPUT_PRIMED)
-		return 1;
-	/* 
-	 * set our summary bit again, as otherwise there is a
-	 * small window we can miss between resetting it and
-	 * checking for PRIMED state 
-	 */
-	if (q->is_thinint_q)
-		tiqdio_set_summary_bit((__u32*)q->dev_st_chg_ind);
-	return 0;
-
-#else /* QDIO_USE_PROCESSING_STATE */
-	return 1;
-#endif /* QDIO_USE_PROCESSING_STATE */
-}
-
-/* 
- * see the comment in do_QDIO and before qdio_reserve_q about the
- * sophisticated locking outside of unmark_q, so that we don't need to
- * disable the interrupts :-) 
-*/
-static void
-qdio_unmark_q(struct qdio_q *q)
-{
-	unsigned long flags;
-
-	QDIO_DBF_TEXT4(0,trace,"unmark q");
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-
-	if ((!q->list_prev)||(!q->list_next))
-		return;
-
-	if ((q->is_thinint_q)&&(q->is_input_q)) {
-		/* iQDIO */
-		spin_lock_irqsave(&ttiq_list_lock,flags);
-		/* in case cleanup has done this already and simultanously
-		 * qdio_unmark_q is called from the interrupt handler, we've
-		 * got to check this in this specific case again */
-		if ((!q->list_prev)||(!q->list_next))
-			goto out;
-		if (q->list_next==q) {
-			/* q was the only interesting q */
-			tiq_list=NULL;
-			q->list_next=NULL;
-			q->list_prev=NULL;
-		} else {
-			q->list_next->list_prev=q->list_prev;
-			q->list_prev->list_next=q->list_next;
-			tiq_list=q->list_next;
-			q->list_next=NULL;
-			q->list_prev=NULL;
-		}
-out:
-		spin_unlock_irqrestore(&ttiq_list_lock,flags);
-	}
-}
-
-static inline unsigned long 
-tiqdio_clear_global_summary(void)
-{
-	unsigned long time;
-
-	QDIO_DBF_TEXT5(0,trace,"clrglobl");
-	
-	time = do_clear_global_summary();
-
-	QDIO_DBF_HEX5(0,trace,&time,sizeof(unsigned long));
-
-	return time;
-}
-
-
-/************************* OUTBOUND ROUTINES *******************************/
-static int
-qdio_qebsm_get_outbound_buffer_frontier(struct qdio_q *q)
-{
-        struct qdio_irq *irq;
-        unsigned char state;
-        unsigned int cnt, count, ftc;
-
-        irq = (struct qdio_irq *) q->irq_ptr;
-        if ((!q->is_iqdio_q) && (!q->hydra_gives_outbound_pcis))
-                SYNC_MEMORY;
-
-        ftc = q->first_to_check;
-        count = qdio_min(atomic_read(&q->number_of_buffers_used),
-                        (QDIO_MAX_BUFFERS_PER_Q-1));
-        if (count == 0)
-                return q->first_to_check;
-        cnt = qdio_do_eqbs(q, &state, &ftc, &count);
-        if (cnt == 0)
-                return q->first_to_check;
-        switch (state) {
-        case SLSB_P_OUTPUT_ERROR:
-                QDIO_DBF_TEXT3(0,trace,"outperr");
-                atomic_sub(cnt , &q->number_of_buffers_used);
-                if (q->qdio_error)
-                        q->error_status_flags |=
-                                QDIO_STATUS_MORE_THAN_ONE_QDIO_ERROR;
-                q->qdio_error = SLSB_P_OUTPUT_ERROR;
-                q->error_status_flags |= QDIO_STATUS_LOOK_FOR_ERROR;
-                q->first_to_check = ftc;
-                break;
-        case SLSB_P_OUTPUT_EMPTY:
-                QDIO_DBF_TEXT5(0,trace,"outpempt");
-                atomic_sub(cnt, &q->number_of_buffers_used);
-                q->first_to_check = ftc;
-                break;
-        case SLSB_CU_OUTPUT_PRIMED:
-                /* all buffers primed */
-                QDIO_DBF_TEXT5(0,trace,"outpprim");
-                break;
-        default:
-                break;
-        }
-        QDIO_DBF_HEX4(0,trace,&q->first_to_check,sizeof(int));
-        return q->first_to_check;
-}
-
-static int
-qdio_qebsm_get_inbound_buffer_frontier(struct qdio_q *q)
-{
-        struct qdio_irq *irq;
-        unsigned char state;
-        int tmp, ftc, count, cnt;
-        char dbf_text[15];
-
-
-        irq = (struct qdio_irq *) q->irq_ptr;
-        ftc = q->first_to_check;
-        count = qdio_min(atomic_read(&q->number_of_buffers_used),
-                        (QDIO_MAX_BUFFERS_PER_Q-1));
-        if (count == 0)
-                 return q->first_to_check;
-        cnt = qdio_do_eqbs(q, &state, &ftc, &count);
-        if (cnt == 0)
-                 return q->first_to_check;
-        switch (state) {
-        case SLSB_P_INPUT_ERROR :
-#ifdef CONFIG_QDIO_DEBUG
-                QDIO_DBF_TEXT3(1,trace,"inperr");
-                sprintf(dbf_text,"%2x,%2x",ftc,count);
-                QDIO_DBF_TEXT3(1,trace,dbf_text);
-#endif /* CONFIG_QDIO_DEBUG */
-                if (q->qdio_error)
-                        q->error_status_flags |=
-                                QDIO_STATUS_MORE_THAN_ONE_QDIO_ERROR;
-                q->qdio_error = SLSB_P_INPUT_ERROR;
-                q->error_status_flags |= QDIO_STATUS_LOOK_FOR_ERROR;
-                atomic_sub(cnt, &q->number_of_buffers_used);
-                q->first_to_check = ftc;
-                break;
-        case SLSB_P_INPUT_PRIMED :
-                QDIO_DBF_TEXT3(0,trace,"inptprim");
-                sprintf(dbf_text,"%2x,%2x",ftc,count);
-                QDIO_DBF_TEXT3(1,trace,dbf_text);
-                tmp = 0;
-                ftc = q->first_to_check;
-#ifdef QDIO_USE_PROCESSING_STATE
-		if (cnt > 1) {
-			cnt -= 1;
-			tmp = set_slsb(q, &ftc, SLSB_P_INPUT_NOT_INIT, &cnt);
-			if (!tmp)
-				break;
-		}
-		cnt = 1;
-		tmp += set_slsb(q, &ftc,
-			       SLSB_P_INPUT_PROCESSING, &cnt);
-		atomic_set(&q->polling, 1);
-#else
-                tmp = set_slsb(q, &ftc, SLSB_P_INPUT_NOT_INIT, &cnt);
-#endif
-                atomic_sub(tmp, &q->number_of_buffers_used);
-                q->first_to_check = ftc;
-                break;
-        case SLSB_CU_INPUT_EMPTY:
-        case SLSB_P_INPUT_NOT_INIT:
-        case SLSB_P_INPUT_PROCESSING:
-                QDIO_DBF_TEXT5(0,trace,"inpnipro");
-                break;
-        default:
-                break;
-        }
-        QDIO_DBF_HEX4(0,trace,&q->first_to_check,sizeof(int));
-        return q->first_to_check;
-}
-
-static int
-qdio_get_outbound_buffer_frontier(struct qdio_q *q)
-{
-	struct qdio_irq *irq;
-        volatile char *slsb;
-        unsigned int count = 1;
-        int first_not_to_check, f, f_mod_no;
-	char dbf_text[15];
-
-	QDIO_DBF_TEXT4(0,trace,"getobfro");
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-
-	irq = (struct qdio_irq *) q->irq_ptr;
-	if (irq->is_qebsm)
-		return qdio_qebsm_get_outbound_buffer_frontier(q);
-
-	slsb=&q->slsb.acc.val[0];
-	f_mod_no=f=q->first_to_check;
-	/* 
-	 * f points to already processed elements, so f+no_used is correct...
-	 * ... but: we don't check 128 buffers, as otherwise
-	 * qdio_has_outbound_q_moved would return 0 
-	 */
-	first_not_to_check=f+qdio_min(atomic_read(&q->number_of_buffers_used),
-				      (QDIO_MAX_BUFFERS_PER_Q-1));
-
-	if (((!q->is_iqdio_q) && (!q->hydra_gives_outbound_pcis)) ||
-		 (q->queue_type == QDIO_IQDIO_QFMT_ASYNCH))
-		SYNC_MEMORY;
-
-check_next:
-	if (f==first_not_to_check) 
-		goto out;
-
-	switch(slsb[f_mod_no]) {
-
-        /* the adapter has not fetched the output yet */
-	case SLSB_CU_OUTPUT_PRIMED:
-		QDIO_DBF_TEXT5(0,trace,"outpprim");
-		break;
-
-	/* the adapter got it */
-	case SLSB_P_OUTPUT_EMPTY:
-		atomic_dec(&q->number_of_buffers_used);
-		f++;
-		f_mod_no=f&(QDIO_MAX_BUFFERS_PER_Q-1);
-		QDIO_DBF_TEXT5(0,trace,"outpempt");
-		goto check_next;
-
-	case SLSB_P_OUTPUT_ERROR:
-		QDIO_DBF_TEXT3(0,trace,"outperr");
-		sprintf(dbf_text,"%x-%x-%x",f_mod_no,
-			q->sbal[f_mod_no]->element[14].sbalf.value,
-			q->sbal[f_mod_no]->element[15].sbalf.value);
-		QDIO_DBF_TEXT3(1,trace,dbf_text);
-		QDIO_DBF_HEX2(1,sbal,q->sbal[f_mod_no],256);
-
-		/* kind of process the buffer */
-		set_slsb(q, &f_mod_no, SLSB_P_OUTPUT_NOT_INIT, &count);
-
-		/* 
-		 * we increment the frontier, as this buffer
-		 * was processed obviously 
-		 */
-		atomic_dec(&q->number_of_buffers_used);
-		f_mod_no=(f_mod_no+1)&(QDIO_MAX_BUFFERS_PER_Q-1);
-
-		if (q->qdio_error)
-			q->error_status_flags|=
-				QDIO_STATUS_MORE_THAN_ONE_QDIO_ERROR;
-		q->qdio_error=SLSB_P_OUTPUT_ERROR;
-		q->error_status_flags|=QDIO_STATUS_LOOK_FOR_ERROR;
-
-		break;
-
-	/* no new buffers */
-	default:
-		QDIO_DBF_TEXT5(0,trace,"outpni");
-	}
-out:
-	return (q->first_to_check=f_mod_no);
-}
-
-/* all buffers are processed */
-static int
-qdio_is_outbound_q_done(struct qdio_q *q)
-{
-	int no_used;
-#ifdef CONFIG_QDIO_DEBUG
-	char dbf_text[15];
-#endif
-
-	no_used=atomic_read(&q->number_of_buffers_used);
-
-#ifdef CONFIG_QDIO_DEBUG
-	if (no_used) {
-		sprintf(dbf_text,"oqisnt%02x",no_used);
-		QDIO_DBF_TEXT4(0,trace,dbf_text);
-	} else {
-		QDIO_DBF_TEXT4(0,trace,"oqisdone");
-	}
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-#endif /* CONFIG_QDIO_DEBUG */
-	return (no_used==0);
-}
-
-static int
-qdio_has_outbound_q_moved(struct qdio_q *q)
-{
-	int i;
-
-	i=qdio_get_outbound_buffer_frontier(q);
-
-	if ( (i!=GET_SAVED_FRONTIER(q)) ||
-	     (q->error_status_flags&QDIO_STATUS_LOOK_FOR_ERROR) ) {
-		SAVE_FRONTIER(q,i);
-		QDIO_DBF_TEXT4(0,trace,"oqhasmvd");
-		QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-		return 1;
-	} else {
-		QDIO_DBF_TEXT4(0,trace,"oqhsntmv");
-		QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-		return 0;
-	}
-}
-
-static void
-qdio_kick_outbound_q(struct qdio_q *q)
-{
-	int result;
-#ifdef CONFIG_QDIO_DEBUG
-	char dbf_text[15];
-
-	QDIO_DBF_TEXT4(0,trace,"kickoutq");
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-#endif /* CONFIG_QDIO_DEBUG */
-
-	if (!q->siga_out)
-		return;
-
-	/* here's the story with cc=2 and busy bit set (thanks, Rick):
-	 * VM's CP could present us cc=2 and busy bit set on SIGA-write
-	 * during reconfiguration of their Guest LAN (only in HIPERS mode,
-	 * QDIO mode is asynchronous -- cc=2 and busy bit there will take
-	 * the queues down immediately; and not being under VM we have a
-	 * problem on cc=2 and busy bit set right away).
-	 *
-	 * Therefore qdio_siga_output will try for a short time constantly,
-	 * if such a condition occurs. If it doesn't change, it will
-	 * increase the busy_siga_counter and save the timestamp, and
-	 * schedule the queue for later processing (via mark_q, using the
-	 * queue tasklet). __qdio_outbound_processing will check out the
-	 * counter. If non-zero, it will call qdio_kick_outbound_q as often
-	 * as the value of the counter. This will attempt further SIGA
-	 * instructions. For each successful SIGA, the counter is
-	 * decreased, for failing SIGAs the counter remains the same, after
-	 * all.
-	 * After some time of no movement, qdio_kick_outbound_q will
-	 * finally fail and reflect corresponding error codes to call
-	 * the upper layer module and have it take the queues down.
-	 *
-	 * Note that this is a change from the original HiperSockets design
-	 * (saying cc=2 and busy bit means take the queues down), but in
-	 * these days Guest LAN didn't exist... excessive cc=2 with busy bit
-	 * conditions will still take the queues down, but the threshold is
-	 * higher due to the Guest LAN environment.
-	 */
-
-
-	result=qdio_siga_output(q);
-
-	switch (result) {
-	case 0:
-		/* went smooth this time, reset timestamp */
-#ifdef CONFIG_QDIO_DEBUG
-		QDIO_DBF_TEXT3(0,trace,"cc2reslv");
-		sprintf(dbf_text,"%4x%2x%2x",q->schid.sch_no,q->q_no,
-			atomic_read(&q->busy_siga_counter));
-		QDIO_DBF_TEXT3(0,trace,dbf_text);
-#endif /* CONFIG_QDIO_DEBUG */
-		q->timing.busy_start=0;
-		break;
-	case (2|QDIO_SIGA_ERROR_B_BIT_SET):
-		/* cc=2 and busy bit: */
-		atomic_inc(&q->busy_siga_counter);
-
-		/* if the last siga was successful, save
-		 * timestamp here */
-		if (!q->timing.busy_start)
-			q->timing.busy_start=NOW;
-
-		/* if we're in time, don't touch error_status_flags
-		 * and siga_error */
-		if (NOW-q->timing.busy_start<QDIO_BUSY_BIT_GIVE_UP) {
-			qdio_mark_q(q);
-			break;
-		}
-		QDIO_DBF_TEXT2(0,trace,"cc2REPRT");
-#ifdef CONFIG_QDIO_DEBUG
-		sprintf(dbf_text,"%4x%2x%2x",q->schid.sch_no,q->q_no,
-			atomic_read(&q->busy_siga_counter));
-		QDIO_DBF_TEXT3(0,trace,dbf_text);
-#endif /* CONFIG_QDIO_DEBUG */
-		/* else fallthrough and report error */
-	default:
-		/* for plain cc=1, 2 or 3: */
-		if (q->siga_error)
-			q->error_status_flags|=
-				QDIO_STATUS_MORE_THAN_ONE_SIGA_ERROR;
-		q->error_status_flags|=
-			QDIO_STATUS_LOOK_FOR_ERROR;
-		q->siga_error=result;
-	}
-}
-
-static void
-qdio_kick_outbound_handler(struct qdio_q *q)
-{
-	int start, end, real_end, count;
-#ifdef CONFIG_QDIO_DEBUG
-	char dbf_text[15];
-#endif
-
-	start = q->first_element_to_kick;
-	/* last_move_ftc was just updated */
-	real_end = GET_SAVED_FRONTIER(q);
-	end = (real_end+QDIO_MAX_BUFFERS_PER_Q-1)&
-		(QDIO_MAX_BUFFERS_PER_Q-1);
-	count = (end+QDIO_MAX_BUFFERS_PER_Q+1-start)&
-		(QDIO_MAX_BUFFERS_PER_Q-1);
-
-#ifdef CONFIG_QDIO_DEBUG
-	QDIO_DBF_TEXT4(0,trace,"kickouth");
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-
-	sprintf(dbf_text,"s=%2xc=%2x",start,count);
-	QDIO_DBF_TEXT4(0,trace,dbf_text);
-#endif /* CONFIG_QDIO_DEBUG */
-
-	if (q->state==QDIO_IRQ_STATE_ACTIVE)
-		q->handler(q->cdev,QDIO_STATUS_OUTBOUND_INT|
-			   q->error_status_flags,
-			   q->qdio_error,q->siga_error,q->q_no,start,count,
-			   q->int_parm);
-
-	/* for the next time: */
-	q->first_element_to_kick=real_end;
-	q->qdio_error=0;
-	q->siga_error=0;
-	q->error_status_flags=0;
-}
-
-static void
-__qdio_outbound_processing(struct qdio_q *q)
-{
-	int siga_attempts;
-
-	QDIO_DBF_TEXT4(0,trace,"qoutproc");
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-
-	if (unlikely(qdio_reserve_q(q))) {
-		qdio_release_q(q);
-		qdio_perf_stat_inc(&perf_stats.outbound_tl_runs_resched);
-		/* as we're sissies, we'll check next time */
-		if (likely(!atomic_read(&q->is_in_shutdown))) {
-			qdio_mark_q(q);
-			QDIO_DBF_TEXT4(0,trace,"busy,agn");
-		}
-		return;
-	}
-	qdio_perf_stat_inc(&perf_stats.outbound_tl_runs);
-	qdio_perf_stat_inc(&perf_stats.tl_runs);
-
-	/* see comment in qdio_kick_outbound_q */
-	siga_attempts=atomic_read(&q->busy_siga_counter);
-	while (siga_attempts) {
-		atomic_dec(&q->busy_siga_counter);
-		qdio_kick_outbound_q(q);
-		siga_attempts--;
-	}
-
-	if (qdio_has_outbound_q_moved(q))
-		qdio_kick_outbound_handler(q);
-
-	if (q->queue_type == QDIO_ZFCP_QFMT) {
-		if ((!q->hydra_gives_outbound_pcis) &&
-		    (!qdio_is_outbound_q_done(q)))
-			qdio_mark_q(q);
-	}
-	else if (((!q->is_iqdio_q) && (!q->is_pci_out)) ||
-		 (q->queue_type == QDIO_IQDIO_QFMT_ASYNCH)) {
-		/* 
-		 * make sure buffer switch from PRIMED to EMPTY is noticed
-		 * and outbound_handler is called
-		 */
-		if (qdio_is_outbound_q_done(q)) {
-			del_timer(&q->timer);
-		} else {
-			if (!timer_pending(&q->timer))
-				mod_timer(&q->timer, jiffies +
-					  QDIO_FORCE_CHECK_TIMEOUT);
-		}
-	}
-
-	qdio_release_q(q);
-}
-
-static void
-qdio_outbound_processing(unsigned long q)
-{
-	__qdio_outbound_processing((struct qdio_q *) q);
-}
-
-/************************* INBOUND ROUTINES *******************************/
-
-
-static int
-qdio_get_inbound_buffer_frontier(struct qdio_q *q)
-{
-	struct qdio_irq *irq;
-	int f,f_mod_no;
-	volatile char *slsb;
-	unsigned int count = 1;
-	int first_not_to_check;
-#ifdef CONFIG_QDIO_DEBUG
-	char dbf_text[15];
-#endif /* CONFIG_QDIO_DEBUG */
-#ifdef QDIO_USE_PROCESSING_STATE
-	int last_position=-1;
-#endif /* QDIO_USE_PROCESSING_STATE */
-
-	QDIO_DBF_TEXT4(0,trace,"getibfro");
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-
-	irq = (struct qdio_irq *) q->irq_ptr;
-	if (irq->is_qebsm)
-		return qdio_qebsm_get_inbound_buffer_frontier(q);
-
-	slsb=&q->slsb.acc.val[0];
-	f_mod_no=f=q->first_to_check;
-	/* 
-	 * we don't check 128 buffers, as otherwise qdio_has_inbound_q_moved
-	 * would return 0 
-	 */
-	first_not_to_check=f+qdio_min(atomic_read(&q->number_of_buffers_used),
-				      (QDIO_MAX_BUFFERS_PER_Q-1));
-
-	/* 
-	 * we don't use this one, as a PCI or we after a thin interrupt
-	 * will sync the queues
-	 */
-	/* SYNC_MEMORY;*/
-
-check_next:
-	f_mod_no=f&(QDIO_MAX_BUFFERS_PER_Q-1);
-	if (f==first_not_to_check) 
-		goto out;
-	switch (slsb[f_mod_no]) {
-
-	/* CU_EMPTY means frontier is reached */
-	case SLSB_CU_INPUT_EMPTY:
-		QDIO_DBF_TEXT5(0,trace,"inptempt");
-		break;
-
-	/* P_PRIMED means set slsb to P_PROCESSING and move on */
-	case SLSB_P_INPUT_PRIMED:
-		QDIO_DBF_TEXT5(0,trace,"inptprim");
-
-#ifdef QDIO_USE_PROCESSING_STATE
-		/* 
-		 * as soon as running under VM, polling the input queues will
-		 * kill VM in terms of CP overhead 
-		 */
-		if (q->siga_sync) {
-			set_slsb(q, &f_mod_no, SLSB_P_INPUT_NOT_INIT, &count);
-		} else {
-			/* set the previous buffer to NOT_INIT. The current
-			 * buffer will be set to PROCESSING at the end of
-			 * this function to avoid further interrupts. */
-			if (last_position>=0)
-				set_slsb(q, &last_position,
-					 SLSB_P_INPUT_NOT_INIT, &count);
-			atomic_set(&q->polling,1);
-			last_position=f_mod_no;
-		}
-#else /* QDIO_USE_PROCESSING_STATE */
-		set_slsb(q, &f_mod_no, SLSB_P_INPUT_NOT_INIT, &count);
-#endif /* QDIO_USE_PROCESSING_STATE */
-		/* 
-		 * not needed, as the inbound queue will be synced on the next
-		 * siga-r, resp. tiqdio_is_inbound_q_done will do the siga-s
-		 */
-		/*SYNC_MEMORY;*/
-		f++;
-		atomic_dec(&q->number_of_buffers_used);
-		goto check_next;
-
-	case SLSB_P_INPUT_NOT_INIT:
-	case SLSB_P_INPUT_PROCESSING:
-		QDIO_DBF_TEXT5(0,trace,"inpnipro");
-		break;
-
-	/* P_ERROR means frontier is reached, break and report error */
-	case SLSB_P_INPUT_ERROR:
-#ifdef CONFIG_QDIO_DEBUG
-		sprintf(dbf_text,"inperr%2x",f_mod_no);
-		QDIO_DBF_TEXT3(1,trace,dbf_text);
-#endif /* CONFIG_QDIO_DEBUG */
-		QDIO_DBF_HEX2(1,sbal,q->sbal[f_mod_no],256);
-
-		/* kind of process the buffer */
-		set_slsb(q, &f_mod_no, SLSB_P_INPUT_NOT_INIT, &count);
-
-		if (q->qdio_error)
-			q->error_status_flags|=
-				QDIO_STATUS_MORE_THAN_ONE_QDIO_ERROR;
-		q->qdio_error=SLSB_P_INPUT_ERROR;
-		q->error_status_flags|=QDIO_STATUS_LOOK_FOR_ERROR;
-
-		/* we increment the frontier, as this buffer
-		 * was processed obviously */
-		f_mod_no=(f_mod_no+1)&(QDIO_MAX_BUFFERS_PER_Q-1);
-		atomic_dec(&q->number_of_buffers_used);
-
-#ifdef QDIO_USE_PROCESSING_STATE
-		last_position=-1;
-#endif /* QDIO_USE_PROCESSING_STATE */
-
-		break;
-
-	/* everything else means frontier not changed (HALTED or so) */
-	default: 
-		break;
-	}
-out:
-	q->first_to_check=f_mod_no;
-
-#ifdef QDIO_USE_PROCESSING_STATE
-	if (last_position>=0)
-		set_slsb(q, &last_position, SLSB_P_INPUT_PROCESSING, &count);
-#endif /* QDIO_USE_PROCESSING_STATE */
-
-	QDIO_DBF_HEX4(0,trace,&q->first_to_check,sizeof(int));
-
-	return q->first_to_check;
-}
-
-static int
-qdio_has_inbound_q_moved(struct qdio_q *q)
-{
-	int i;
-
-	i=qdio_get_inbound_buffer_frontier(q);
-	if ( (i!=GET_SAVED_FRONTIER(q)) ||
-	     (q->error_status_flags&QDIO_STATUS_LOOK_FOR_ERROR) ) {
-		SAVE_FRONTIER(q,i);
-		if ((!q->siga_sync)&&(!q->hydra_gives_outbound_pcis))
-			SAVE_TIMESTAMP(q);
-
-		QDIO_DBF_TEXT4(0,trace,"inhasmvd");
-		QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-		return 1;
-	} else {
-		QDIO_DBF_TEXT4(0,trace,"inhsntmv");
-		QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-		return 0;
-	}
-}
-
-/* means, no more buffers to be filled */
-static int
-tiqdio_is_inbound_q_done(struct qdio_q *q)
-{
-	int no_used;
-	unsigned int start_buf, count;
-	unsigned char state = 0;
-	struct qdio_irq *irq = (struct qdio_irq *) q->irq_ptr;
-
-#ifdef CONFIG_QDIO_DEBUG
-	char dbf_text[15];
-#endif
-
-	no_used=atomic_read(&q->number_of_buffers_used);
-
-	/* propagate the change from 82 to 80 through VM */
-	SYNC_MEMORY;
-
-#ifdef CONFIG_QDIO_DEBUG
-	if (no_used) {
-		sprintf(dbf_text,"iqisnt%02x",no_used);
-		QDIO_DBF_TEXT4(0,trace,dbf_text);
-	} else {
-		QDIO_DBF_TEXT4(0,trace,"iniqisdo");
-	}
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-#endif /* CONFIG_QDIO_DEBUG */
-
-	if (!no_used)
-		return 1;
-	if (irq->is_qebsm) {
-		count = 1;
-		start_buf = q->first_to_check;
-		qdio_do_eqbs(q, &state, &start_buf, &count);
-	} else
-		state = q->slsb.acc.val[q->first_to_check];
-	if (state != SLSB_P_INPUT_PRIMED)
-		/* 
-		 * nothing more to do, if next buffer is not PRIMED.
-		 * note that we did a SYNC_MEMORY before, that there
-		 * has been a sychnronization.
-		 * we will return 0 below, as there is nothing to do
-		 * (stop_polling not necessary, as we have not been
-		 * using the PROCESSING state 
-		 */
-		return 0;
-
-	/* 
-	 * ok, the next input buffer is primed. that means, that device state 
-	 * change indicator and adapter local summary are set, so we will find
-	 * it next time.
-	 * we will return 0 below, as there is nothing to do, except scheduling
-	 * ourselves for the next time. 
-	 */
-	tiqdio_set_summary_bit((__u32*)q->dev_st_chg_ind);
-	tiqdio_sched_tl();
-	return 0;
-}
-
-static int
-qdio_is_inbound_q_done(struct qdio_q *q)
-{
-	int no_used;
-	unsigned int start_buf, count;
-	unsigned char state = 0;
-	struct qdio_irq *irq = (struct qdio_irq *) q->irq_ptr;
-
-#ifdef CONFIG_QDIO_DEBUG
-	char dbf_text[15];
-#endif
-
-	no_used=atomic_read(&q->number_of_buffers_used);
-
-	/* 
-	 * we need that one for synchronization with the adapter, as it
-	 * does a kind of PCI avoidance 
-	 */
-	SYNC_MEMORY;
-
-	if (!no_used) {
-		QDIO_DBF_TEXT4(0,trace,"inqisdnA");
-		QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-		return 1;
-	}
-	if (irq->is_qebsm) {
-		count = 1;
-		start_buf = q->first_to_check;
-		qdio_do_eqbs(q, &state, &start_buf, &count);
-	} else
-		state = q->slsb.acc.val[q->first_to_check];
-	if (state == SLSB_P_INPUT_PRIMED) {
-		/* we got something to do */
-		QDIO_DBF_TEXT4(0,trace,"inqisntA");
-		QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-		return 0;
-	}
-
-	/* on VM, we don't poll, so the q is always done here */
-	if (q->siga_sync)
-		return 1;
-	if (q->hydra_gives_outbound_pcis)
-		return 1;
-
-	/* 
-	 * at this point we know, that inbound first_to_check
-	 * has (probably) not moved (see qdio_inbound_processing) 
-	 */
-	if (NOW>GET_SAVED_TIMESTAMP(q)+q->timing.threshold) {
-#ifdef CONFIG_QDIO_DEBUG
-		QDIO_DBF_TEXT4(0,trace,"inqisdon");
-		QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-		sprintf(dbf_text,"pf%02xcn%02x",q->first_to_check,no_used);
-		QDIO_DBF_TEXT4(0,trace,dbf_text);
-#endif /* CONFIG_QDIO_DEBUG */
-		return 1;
-	} else {
-#ifdef CONFIG_QDIO_DEBUG
-		QDIO_DBF_TEXT4(0,trace,"inqisntd");
-		QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-		sprintf(dbf_text,"pf%02xcn%02x",q->first_to_check,no_used);
-		QDIO_DBF_TEXT4(0,trace,dbf_text);
-#endif /* CONFIG_QDIO_DEBUG */
-		return 0;
-	}
-}
-
-static void
-qdio_kick_inbound_handler(struct qdio_q *q)
-{
-	int count, start, end, real_end, i;
-#ifdef CONFIG_QDIO_DEBUG
-	char dbf_text[15];
-#endif
-
-	QDIO_DBF_TEXT4(0,trace,"kickinh");
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-
-  	start=q->first_element_to_kick;
- 	real_end=q->first_to_check;
- 	end=(real_end+QDIO_MAX_BUFFERS_PER_Q-1)&(QDIO_MAX_BUFFERS_PER_Q-1);
- 
- 	i=start;
-	count=0;
- 	while (1) {
- 		count++;
- 		if (i==end)
-			break;
- 		i=(i+1)&(QDIO_MAX_BUFFERS_PER_Q-1);
- 	}
-
-#ifdef CONFIG_QDIO_DEBUG
-	sprintf(dbf_text,"s=%2xc=%2x",start,count);
-	QDIO_DBF_TEXT4(0,trace,dbf_text);
-#endif /* CONFIG_QDIO_DEBUG */
-
-	if (likely(q->state==QDIO_IRQ_STATE_ACTIVE))
-		q->handler(q->cdev,
-			   QDIO_STATUS_INBOUND_INT|q->error_status_flags,
-			   q->qdio_error,q->siga_error,q->q_no,start,count,
-			   q->int_parm);
-
-	/* for the next time: */
-	q->first_element_to_kick=real_end;
-	q->qdio_error=0;
-	q->siga_error=0;
-	q->error_status_flags=0;
-
-	qdio_perf_stat_inc(&perf_stats.inbound_cnt);
-}
-
-static void
-__tiqdio_inbound_processing(struct qdio_q *q, int spare_ind_was_set)
-{
-	struct qdio_irq *irq_ptr;
-	struct qdio_q *oq;
-	int i;
-
-	QDIO_DBF_TEXT4(0,trace,"iqinproc");
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-
-	/* 
-	 * we first want to reserve the q, so that we know, that we don't
-	 * interrupt ourselves and call qdio_unmark_q, as is_in_shutdown might
-	 * be set 
-	 */
-	if (unlikely(qdio_reserve_q(q))) {
-		qdio_release_q(q);
-		qdio_perf_stat_inc(&perf_stats.inbound_thin_tl_runs_resched);
-		/* 
-		 * as we might just be about to stop polling, we make
-		 * sure that we check again at least once more 
-		 */
-		tiqdio_sched_tl();
-		return;
-	}
-	qdio_perf_stat_inc(&perf_stats.inbound_thin_tl_runs);
-	if (unlikely(atomic_read(&q->is_in_shutdown))) {
-		qdio_unmark_q(q);
-		goto out;
-	}
-
-	/* 
-	 * we reset spare_ind_was_set, when the queue does not use the
-	 * spare indicator
-	 */
-	if (spare_ind_was_set)
-		spare_ind_was_set = (q->dev_st_chg_ind == &spare_indicator);
-
-	if (!(*(q->dev_st_chg_ind)) && !spare_ind_was_set)
-		goto out;
-	/*
-	 * q->dev_st_chg_ind is the indicator, be it shared or not.
-	 * only clear it, if indicator is non-shared
-	 */
-	if (q->dev_st_chg_ind != &spare_indicator)
-		tiqdio_clear_summary_bit((__u32*)q->dev_st_chg_ind);
-
-	if (q->hydra_gives_outbound_pcis) {
-		if (!q->siga_sync_done_on_thinints) {
-			SYNC_MEMORY_ALL;
-		} else if (!q->siga_sync_done_on_outb_tis) {
-			SYNC_MEMORY_ALL_OUTB;
-		}
-	} else {
-		SYNC_MEMORY;
-	}
-	/*
-	 * maybe we have to do work on our outbound queues... at least
-	 * we have to check the outbound-int-capable thinint-capable
-	 * queues
-	 */
-	if (q->hydra_gives_outbound_pcis) {
-		irq_ptr = (struct qdio_irq*)q->irq_ptr;
-		for (i=0;i<irq_ptr->no_output_qs;i++) {
-			oq = irq_ptr->output_qs[i];
-			if (!qdio_is_outbound_q_done(oq)) {
-				qdio_perf_stat_dec(&perf_stats.tl_runs);
-				__qdio_outbound_processing(oq);
-			}
-		}
-	}
-
-	if (!qdio_has_inbound_q_moved(q))
-		goto out;
-
-	qdio_kick_inbound_handler(q);
-	if (tiqdio_is_inbound_q_done(q))
-		if (!qdio_stop_polling(q)) {
-			/* 
-			 * we set the flags to get into the stuff next time,
-			 * see also comment in qdio_stop_polling 
-			 */
-			tiqdio_set_summary_bit((__u32*)q->dev_st_chg_ind);
-			tiqdio_sched_tl();
-		}
-out:
-	qdio_release_q(q);
-}
-
-static void
-tiqdio_inbound_processing(unsigned long q)
-{
-	__tiqdio_inbound_processing((struct qdio_q *) q,
-				    atomic_read(&spare_indicator_usecount));
-}
-
-static void
-__qdio_inbound_processing(struct qdio_q *q)
-{
-	int q_laps=0;
-
-	QDIO_DBF_TEXT4(0,trace,"qinproc");
-	QDIO_DBF_HEX4(0,trace,&q,sizeof(void*));
-
-	if (unlikely(qdio_reserve_q(q))) {
-		qdio_release_q(q);
-		qdio_perf_stat_inc(&perf_stats.inbound_tl_runs_resched);
-		/* as we're sissies, we'll check next time */
-		if (likely(!atomic_read(&q->is_in_shutdown))) {
-			qdio_mark_q(q);
-			QDIO_DBF_TEXT4(0,trace,"busy,agn");
-		}
-		return;
-	}
-	qdio_perf_stat_inc(&perf_stats.inbound_tl_runs);
-	qdio_perf_stat_inc(&perf_stats.tl_runs);
-
-again:
-	if (qdio_has_inbound_q_moved(q)) {
-		qdio_kick_inbound_handler(q);
-		if (!qdio_stop_polling(q)) {
-			q_laps++;
-			if (q_laps<QDIO_Q_LAPS) 
-				goto again;
-		}
-		qdio_mark_q(q);
-	} else {
-		if (!qdio_is_inbound_q_done(q)) 
-                        /* means poll time is not yet over */
-			qdio_mark_q(q);
-	}
-
-	qdio_release_q(q);
-}
-
-static void
-qdio_inbound_processing(unsigned long q)
-{
-	__qdio_inbound_processing((struct qdio_q *) q);
-}
-
-/************************* MAIN ROUTINES *******************************/
-
-#ifdef QDIO_USE_PROCESSING_STATE
-static int
-tiqdio_reset_processing_state(struct qdio_q *q, int q_laps)
-{
-	if (!q) {
-		tiqdio_sched_tl();
-		return 0;
-	}
-
-	/* 
-	 * under VM, we have not used the PROCESSING state, so no
-	 * need to stop polling 
-	 */
-	if (q->siga_sync)
-		return 2;
-
-	if (unlikely(qdio_reserve_q(q))) {
-		qdio_release_q(q);
-		qdio_perf_stat_inc(&perf_stats.inbound_thin_tl_runs_resched);
-		/* 
-		 * as we might just be about to stop polling, we make
-		 * sure that we check again at least once more 
-		 */
-		
-		/* 
-		 * sanity -- we'd get here without setting the
-		 * dev st chg ind 
-		 */
-		tiqdio_set_summary_bit((__u32*)q->dev_st_chg_ind);
-		tiqdio_sched_tl();
-		return 0;
-	}
-	if (qdio_stop_polling(q)) {
-		qdio_release_q(q);
-		return 2;
-	}		
-	if (q_laps<QDIO_Q_LAPS-1) {
-		qdio_release_q(q);
-		return 3;
-	}
-	/* 
-	 * we set the flags to get into the stuff
-	 * next time, see also comment in qdio_stop_polling 
-	 */
-	tiqdio_set_summary_bit((__u32*)q->dev_st_chg_ind);
-	tiqdio_sched_tl();
-	qdio_release_q(q);
-	return 1;
-	
-}
-#endif /* QDIO_USE_PROCESSING_STATE */
-
-static void
-tiqdio_inbound_checks(void)
-{
-	struct qdio_q *q;
-	int spare_ind_was_set=0;
-#ifdef QDIO_USE_PROCESSING_STATE
-	int q_laps=0;
-#endif /* QDIO_USE_PROCESSING_STATE */
-
-	QDIO_DBF_TEXT4(0,trace,"iqdinbck");
-	QDIO_DBF_TEXT5(0,trace,"iqlocsum");
-
-#ifdef QDIO_USE_PROCESSING_STATE
-again:
-#endif /* QDIO_USE_PROCESSING_STATE */
-
-	/* when the spare indicator is used and set, save that and clear it */
-	if ((atomic_read(&spare_indicator_usecount)) && spare_indicator) {
-		spare_ind_was_set = 1;
-		tiqdio_clear_summary_bit((__u32*)&spare_indicator);
-	}
-
-	q=(struct qdio_q*)tiq_list;
-	do {
-		if (!q)
-			break;
-		__tiqdio_inbound_processing(q, spare_ind_was_set);
-		q=(struct qdio_q*)q->list_next;
-	} while (q!=(struct qdio_q*)tiq_list);
-
-#ifdef QDIO_USE_PROCESSING_STATE
-	q=(struct qdio_q*)tiq_list;
-	do {
-		int ret;
-
-		ret = tiqdio_reset_processing_state(q, q_laps);
-		switch (ret) {
-		case 0:
-			return;
-		case 1:
-			q_laps++;
-		case 2:
-			q = (struct qdio_q*)q->list_next;
-			break;
-		default:
-			q_laps++;
-			goto again;
-		}
-	} while (q!=(struct qdio_q*)tiq_list);
-#endif /* QDIO_USE_PROCESSING_STATE */
-}
-
-static void
-tiqdio_tl(unsigned long data)
-{
-	QDIO_DBF_TEXT4(0,trace,"iqdio_tl");
-
-	qdio_perf_stat_inc(&perf_stats.tl_runs);
-
-	tiqdio_inbound_checks();
-}
-
-/********************* GENERAL HELPER_ROUTINES ***********************/
-
-static void
-qdio_release_irq_memory(struct qdio_irq *irq_ptr)
-{
-	int i;
-	struct qdio_q *q;
-
-	for (i = 0; i < QDIO_MAX_QUEUES_PER_IRQ; i++) {
-		q = irq_ptr->input_qs[i];
-		if (q) {
-			free_page((unsigned long) q->slib);
-			kmem_cache_free(qdio_q_cache, q);
-		}
-		q = irq_ptr->output_qs[i];
-		if (q) {
-			free_page((unsigned long) q->slib);
-			kmem_cache_free(qdio_q_cache, q);
-		}
-	}
-	free_page((unsigned long) irq_ptr->qdr);
-	free_page((unsigned long) irq_ptr);
-}
-
-static void
-qdio_set_impl_params(struct qdio_irq *irq_ptr,
-		     unsigned int qib_param_field_format,
-		     /* pointer to 128 bytes or NULL, if no param field */
-		     unsigned char *qib_param_field,
-		     /* pointer to no_queues*128 words of data or NULL */
-		     unsigned int no_input_qs,
-		     unsigned int no_output_qs,
-		     unsigned long *input_slib_elements,
-		     unsigned long *output_slib_elements)
-{
-	int i,j;
-
-	if (!irq_ptr)
-		return;
-
-	irq_ptr->qib.pfmt=qib_param_field_format;
-	if (qib_param_field)
-		memcpy(irq_ptr->qib.parm,qib_param_field,
-		       QDIO_MAX_BUFFERS_PER_Q);
-
-	if (input_slib_elements)
-		for (i=0;i<no_input_qs;i++) {
-			for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++)
-				irq_ptr->input_qs[i]->slib->slibe[j].parms=
-					input_slib_elements[
-						i*QDIO_MAX_BUFFERS_PER_Q+j];
-		}
-	if (output_slib_elements)
-		for (i=0;i<no_output_qs;i++) {
-			for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++)
-				irq_ptr->output_qs[i]->slib->slibe[j].parms=
-					output_slib_elements[
-						i*QDIO_MAX_BUFFERS_PER_Q+j];
-		}
-}
-
-static int
-qdio_alloc_qs(struct qdio_irq *irq_ptr,
-	      int no_input_qs, int no_output_qs)
-{
-	int i;
-	struct qdio_q *q;
-
-	for (i = 0; i < no_input_qs; i++) {
-		q = kmem_cache_alloc(qdio_q_cache, GFP_KERNEL);
-		if (!q)
-			return -ENOMEM;
-		memset(q, 0, sizeof(*q));
-
-		q->slib = (struct slib *) __get_free_page(GFP_KERNEL);
-		if (!q->slib) {
-			kmem_cache_free(qdio_q_cache, q);
-			return -ENOMEM;
-		}
-		irq_ptr->input_qs[i]=q;
-	}
-
-	for (i = 0; i < no_output_qs; i++) {
-		q = kmem_cache_alloc(qdio_q_cache, GFP_KERNEL);
-		if (!q)
-			return -ENOMEM;
-		memset(q, 0, sizeof(*q));
-
-		q->slib = (struct slib *) __get_free_page(GFP_KERNEL);
-		if (!q->slib) {
-			kmem_cache_free(qdio_q_cache, q);
-			return -ENOMEM;
-		}
-		irq_ptr->output_qs[i]=q;
-	}
-	return 0;
-}
-
-static void
-qdio_fill_qs(struct qdio_irq *irq_ptr, struct ccw_device *cdev,
-       	     int no_input_qs, int no_output_qs,
-	     qdio_handler_t *input_handler,
-	     qdio_handler_t *output_handler,
-	     unsigned long int_parm,int q_format,
-	     unsigned long flags,
-	     void **inbound_sbals_array,
-	     void **outbound_sbals_array)
-{
-	struct qdio_q *q;
-	int i,j;
-	char dbf_text[20]; /* see qdio_initialize */
-	void *ptr;
-	int available;
-
-	sprintf(dbf_text,"qfqs%4x",cdev->private->schid.sch_no);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-	for (i=0;i<no_input_qs;i++) {
-		q=irq_ptr->input_qs[i];
-
-		memset(q,0,((char*)&q->slib)-((char*)q));
-		sprintf(dbf_text,"in-q%4x",i);
-		QDIO_DBF_TEXT0(0,setup,dbf_text);
-		QDIO_DBF_HEX0(0,setup,&q,sizeof(void*));
-
-		memset(q->slib,0,PAGE_SIZE);
-		q->sl=(struct sl*)(((char*)q->slib)+PAGE_SIZE/2);
-
-		available=0;
-
-		for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++)
-			q->sbal[j]=*(inbound_sbals_array++);
-
-                q->queue_type=q_format;
-		q->int_parm=int_parm;
-		q->schid = irq_ptr->schid;
-		q->irq_ptr = irq_ptr;
-		q->cdev = cdev;
-		q->mask=1<<(31-i);
-		q->q_no=i;
-		q->is_input_q=1;
-		q->first_to_check=0;
-		q->last_move_ftc=0;
-		q->handler=input_handler;
-		q->dev_st_chg_ind=irq_ptr->dev_st_chg_ind;
-
-		/* q->is_thinint_q isn't valid at this time, but
-		 * irq_ptr->is_thinint_irq is
-		 */
-		if (irq_ptr->is_thinint_irq)
-			tasklet_init(&q->tasklet, tiqdio_inbound_processing,
-				     (unsigned long) q);
-		else
-			tasklet_init(&q->tasklet, qdio_inbound_processing,
-				     (unsigned long) q);
-
-		/* actually this is not used for inbound queues. yet. */
-		atomic_set(&q->busy_siga_counter,0);
-		q->timing.busy_start=0;
-
-/*		for (j=0;j<QDIO_STATS_NUMBER;j++)
-			q->timing.last_transfer_times[j]=(qdio_get_micros()/
-							  QDIO_STATS_NUMBER)*j;
-		q->timing.last_transfer_index=QDIO_STATS_NUMBER-1;
-*/
-
-		/* fill in slib */
-		if (i>0) irq_ptr->input_qs[i-1]->slib->nsliba=
-				 (unsigned long)(q->slib);
-		q->slib->sla=(unsigned long)(q->sl);
-		q->slib->slsba=(unsigned long)(&q->slsb.acc.val[0]);
-
-		/* fill in sl */
-		for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++)
-			q->sl->element[j].sbal=(unsigned long)(q->sbal[j]);
-
-		QDIO_DBF_TEXT2(0,setup,"sl-sb-b0");
-		ptr=(void*)q->sl;
-		QDIO_DBF_HEX2(0,setup,&ptr,sizeof(void*));
-		ptr=(void*)&q->slsb;
-		QDIO_DBF_HEX2(0,setup,&ptr,sizeof(void*));
-		ptr=(void*)q->sbal[0];
-		QDIO_DBF_HEX2(0,setup,&ptr,sizeof(void*));
-
-		/* fill in slsb */
-		if (!irq_ptr->is_qebsm) {
-                        unsigned int count = 1;
-                        for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++)
-                                set_slsb(q, &j, SLSB_P_INPUT_NOT_INIT, &count);
-                }
-	}
-
-	for (i=0;i<no_output_qs;i++) {
-		q=irq_ptr->output_qs[i];
-		memset(q,0,((char*)&q->slib)-((char*)q));
-
-		sprintf(dbf_text,"outq%4x",i);
-		QDIO_DBF_TEXT0(0,setup,dbf_text);
-		QDIO_DBF_HEX0(0,setup,&q,sizeof(void*));
-
-		memset(q->slib,0,PAGE_SIZE);
-		q->sl=(struct sl*)(((char*)q->slib)+PAGE_SIZE/2);
-
-		available=0;
-		
-		for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++)
-			q->sbal[j]=*(outbound_sbals_array++);
-
-                q->queue_type=q_format;
-		if ((q->queue_type == QDIO_IQDIO_QFMT) &&
-		    (no_output_qs > 1) &&
-		    (i == no_output_qs-1))
-			q->queue_type = QDIO_IQDIO_QFMT_ASYNCH;
-		q->int_parm=int_parm;
-		q->is_input_q=0;
-		q->is_pci_out = 0;
-		q->schid = irq_ptr->schid;
-		q->cdev = cdev;
-		q->irq_ptr = irq_ptr;
-		q->mask=1<<(31-i);
-		q->q_no=i;
-		q->first_to_check=0;
-		q->last_move_ftc=0;
-		q->handler=output_handler;
-
-		tasklet_init(&q->tasklet, qdio_outbound_processing,
-			     (unsigned long) q);
-		setup_timer(&q->timer, qdio_outbound_processing,
-			    (unsigned long) q);
-
-		atomic_set(&q->busy_siga_counter,0);
-		q->timing.busy_start=0;
-
-		/* fill in slib */
-		if (i>0) irq_ptr->output_qs[i-1]->slib->nsliba=
-				 (unsigned long)(q->slib);
-		q->slib->sla=(unsigned long)(q->sl);
-		q->slib->slsba=(unsigned long)(&q->slsb.acc.val[0]);
-
-		/* fill in sl */
-		for (j=0;j<QDIO_MAX_BUFFERS_PER_Q;j++)
-			q->sl->element[j].sbal=(unsigned long)(q->sbal[j]);
-
-		QDIO_DBF_TEXT2(0,setup,"sl-sb-b0");
-		ptr=(void*)q->sl;
-		QDIO_DBF_HEX2(0,setup,&ptr,sizeof(void*));
-		ptr=(void*)&q->slsb;
-		QDIO_DBF_HEX2(0,setup,&ptr,sizeof(void*));
-		ptr=(void*)q->sbal[0];
-		QDIO_DBF_HEX2(0,setup,&ptr,sizeof(void*));
-
-		/* fill in slsb */
-                if (!irq_ptr->is_qebsm) {
-                        unsigned int count = 1;
-                        for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++)
-                                set_slsb(q, &j, SLSB_P_OUTPUT_NOT_INIT, &count);
-                }
-	}
-}
-
-static void
-qdio_fill_thresholds(struct qdio_irq *irq_ptr,
-		     unsigned int no_input_qs,
-		     unsigned int no_output_qs,
-		     unsigned int min_input_threshold,
-		     unsigned int max_input_threshold,
-		     unsigned int min_output_threshold,
-		     unsigned int max_output_threshold)
-{
-	int i;
-	struct qdio_q *q;
-
-	for (i=0;i<no_input_qs;i++) {
-		q=irq_ptr->input_qs[i];
-		q->timing.threshold=max_input_threshold;
-/*		for (j=0;j<QDIO_STATS_CLASSES;j++) {
-			q->threshold_classes[j].threshold=
-				min_input_threshold+
-				(max_input_threshold-min_input_threshold)/
-				QDIO_STATS_CLASSES;
-		}
-		qdio_use_thresholds(q,QDIO_STATS_CLASSES/2);*/
-	}
-	for (i=0;i<no_output_qs;i++) {
-		q=irq_ptr->output_qs[i];
-		q->timing.threshold=max_output_threshold;
-/*		for (j=0;j<QDIO_STATS_CLASSES;j++) {
-			q->threshold_classes[j].threshold=
-				min_output_threshold+
-				(max_output_threshold-min_output_threshold)/
-				QDIO_STATS_CLASSES;
-		}
-		qdio_use_thresholds(q,QDIO_STATS_CLASSES/2);*/
-	}
-}
-
-static void tiqdio_thinint_handler(void *ind, void *drv_data)
-{
-	QDIO_DBF_TEXT4(0,trace,"thin_int");
-
-	qdio_perf_stat_inc(&perf_stats.thinints);
-
-	/* SVS only when needed:
-	 * issue SVS to benefit from iqdio interrupt avoidance
-	 * (SVS clears AISOI)*/
-	if (!omit_svs)
-		tiqdio_clear_global_summary();
-
-	tiqdio_inbound_checks();
-}
-
-static void
-qdio_set_state(struct qdio_irq *irq_ptr, enum qdio_irq_states state)
-{
-	int i;
-#ifdef CONFIG_QDIO_DEBUG
-	char dbf_text[15];
-
-	QDIO_DBF_TEXT5(0,trace,"newstate");
-	sprintf(dbf_text,"%4x%4x",irq_ptr->schid.sch_no,state);
-	QDIO_DBF_TEXT5(0,trace,dbf_text);
-#endif /* CONFIG_QDIO_DEBUG */
-
-	irq_ptr->state=state;
-	for (i=0;i<irq_ptr->no_input_qs;i++)
-		irq_ptr->input_qs[i]->state=state;
-	for (i=0;i<irq_ptr->no_output_qs;i++)
-		irq_ptr->output_qs[i]->state=state;
-	mb();
-}
-
-static void
-qdio_irq_check_sense(struct subchannel_id schid, struct irb *irb)
-{
-	char dbf_text[15];
-
-	if (irb->esw.esw0.erw.cons) {
-		sprintf(dbf_text,"sens%4x",schid.sch_no);
-		QDIO_DBF_TEXT2(1,trace,dbf_text);
-		QDIO_DBF_HEX0(0,sense,irb,QDIO_DBF_SENSE_LEN);
-
-		QDIO_PRINT_WARN("sense data available on qdio channel.\n");
-		QDIO_HEXDUMP16(WARN,"irb: ",irb);
-		QDIO_HEXDUMP16(WARN,"sense data: ",irb->ecw);
-	}
-		
-}
-
-static void
-qdio_handle_pci(struct qdio_irq *irq_ptr)
-{
-	int i;
-	struct qdio_q *q;
-
-	qdio_perf_stat_inc(&perf_stats.pcis);
-	for (i=0;i<irq_ptr->no_input_qs;i++) {
-		q=irq_ptr->input_qs[i];
-		if (q->is_input_q&QDIO_FLAG_NO_INPUT_INTERRUPT_CONTEXT)
-			qdio_mark_q(q);
-		else {
-			qdio_perf_stat_dec(&perf_stats.tl_runs);
-			__qdio_inbound_processing(q);
-		}
-	}
-	if (!irq_ptr->hydra_gives_outbound_pcis)
-		return;
-	for (i=0;i<irq_ptr->no_output_qs;i++) {
-		q=irq_ptr->output_qs[i];
-		if (qdio_is_outbound_q_done(q))
-			continue;
-		qdio_perf_stat_dec(&perf_stats.tl_runs);
-		if (!irq_ptr->sync_done_on_outb_pcis)
-			SYNC_MEMORY;
-		__qdio_outbound_processing(q);
-	}
-}
-
-static void qdio_establish_handle_irq(struct ccw_device*, int, int);
-
-static void
-qdio_handle_activate_check(struct ccw_device *cdev, unsigned long intparm,
-			   int cstat, int dstat)
-{
-	struct qdio_irq *irq_ptr;
-	struct qdio_q *q;
-	char dbf_text[15];
-
-	irq_ptr = cdev->private->qdio_data;
-
-	QDIO_DBF_TEXT2(1, trace, "ick2");
-	sprintf(dbf_text,"%s", cdev->dev.bus_id);
-	QDIO_DBF_TEXT2(1,trace,dbf_text);
-	QDIO_DBF_HEX2(0,trace,&intparm,sizeof(int));
-	QDIO_DBF_HEX2(0,trace,&dstat,sizeof(int));
-	QDIO_DBF_HEX2(0,trace,&cstat,sizeof(int));
-	QDIO_PRINT_ERR("received check condition on activate " \
-		       "queues on device %s (cs=x%x, ds=x%x).\n",
-		       cdev->dev.bus_id, cstat, dstat);
-	if (irq_ptr->no_input_qs) {
-		q=irq_ptr->input_qs[0];
-	} else if (irq_ptr->no_output_qs) {
-		q=irq_ptr->output_qs[0];
-	} else {
-		QDIO_PRINT_ERR("oops... no queue registered for device %s!?\n",
-			       cdev->dev.bus_id);
-		goto omit_handler_call;
-	}
-	q->handler(q->cdev,QDIO_STATUS_ACTIVATE_CHECK_CONDITION|
-		   QDIO_STATUS_LOOK_FOR_ERROR,
-		   0,0,0,-1,-1,q->int_parm);
-omit_handler_call:
-	qdio_set_state(irq_ptr,QDIO_IRQ_STATE_STOPPED);
-
-}
-
-static void
-qdio_call_shutdown(struct work_struct *work)
-{
-	struct ccw_device_private *priv;
-	struct ccw_device *cdev;
-
-	priv = container_of(work, struct ccw_device_private, kick_work);
-	cdev = priv->cdev;
-	qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR);
-	put_device(&cdev->dev);
-}
-
-static void
-qdio_timeout_handler(struct ccw_device *cdev)
-{
-	struct qdio_irq *irq_ptr;
-	char dbf_text[15];
-
-	QDIO_DBF_TEXT2(0, trace, "qtoh");
-	sprintf(dbf_text, "%s", cdev->dev.bus_id);
-	QDIO_DBF_TEXT2(0, trace, dbf_text);
-
-	irq_ptr = cdev->private->qdio_data;
-	sprintf(dbf_text, "state:%d", irq_ptr->state);
-	QDIO_DBF_TEXT2(0, trace, dbf_text);
-
-	switch (irq_ptr->state) {
-	case QDIO_IRQ_STATE_INACTIVE:
-		QDIO_PRINT_ERR("establish queues on irq 0.%x.%04x: timed out\n",
-			       irq_ptr->schid.ssid, irq_ptr->schid.sch_no);
-		QDIO_DBF_TEXT2(1,setup,"eq:timeo");
-		qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
-		break;
-	case QDIO_IRQ_STATE_CLEANUP:
-		QDIO_PRINT_INFO("Did not get interrupt on cleanup, "
-				"irq=0.%x.%x.\n",
-				irq_ptr->schid.ssid, irq_ptr->schid.sch_no);
-		qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
-		break;
-	case QDIO_IRQ_STATE_ESTABLISHED:
-	case QDIO_IRQ_STATE_ACTIVE:
-		/* I/O has been terminated by common I/O layer. */
-		QDIO_PRINT_INFO("Queues on irq 0.%x.%04x killed by cio.\n",
-				irq_ptr->schid.ssid, irq_ptr->schid.sch_no);
-		QDIO_DBF_TEXT2(1, trace, "cio:term");
-		qdio_set_state(irq_ptr, QDIO_IRQ_STATE_STOPPED);
-		if (get_device(&cdev->dev)) {
-			/* Can't call shutdown from interrupt context. */
-			PREPARE_WORK(&cdev->private->kick_work,
-				     qdio_call_shutdown);
-			queue_work(ccw_device_work, &cdev->private->kick_work);
-		}
-		break;
-	default:
-		BUG();
-	}
-	wake_up(&cdev->private->wait_q);
-}
-
-static void
-qdio_handler(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
-{
-	struct qdio_irq *irq_ptr;
-	int cstat,dstat;
-	char dbf_text[15];
-
-#ifdef CONFIG_QDIO_DEBUG
-	QDIO_DBF_TEXT4(0, trace, "qint");
-	sprintf(dbf_text, "%s", cdev->dev.bus_id);
-	QDIO_DBF_TEXT4(0, trace, dbf_text);
-#endif /* CONFIG_QDIO_DEBUG */
-	
-	if (!intparm) {
-		QDIO_PRINT_ERR("got unsolicited interrupt in qdio " \
-				  "handler, device %s\n", cdev->dev.bus_id);
-		return;
-	}
-
-	irq_ptr = cdev->private->qdio_data;
-	if (!irq_ptr) {
-		QDIO_DBF_TEXT2(1, trace, "uint");
-		sprintf(dbf_text,"%s", cdev->dev.bus_id);
-		QDIO_DBF_TEXT2(1,trace,dbf_text);
-		QDIO_PRINT_ERR("received interrupt on unused device %s!\n",
-			       cdev->dev.bus_id);
-		return;
-	}
-
-	if (IS_ERR(irb)) {
-		/* Currently running i/o is in error. */
-		switch (PTR_ERR(irb)) {
-		case -EIO:
-			QDIO_PRINT_ERR("i/o error on device %s\n",
-				       cdev->dev.bus_id);
-			qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
-			wake_up(&cdev->private->wait_q);
-			return;
-		case -ETIMEDOUT:
-			qdio_timeout_handler(cdev);
-			return;
-		default:
-			QDIO_PRINT_ERR("unknown error state %ld on device %s\n",
-				       PTR_ERR(irb), cdev->dev.bus_id);
-			return;
-		}
-	}
-
-	qdio_irq_check_sense(irq_ptr->schid, irb);
-
-#ifdef CONFIG_QDIO_DEBUG
-	sprintf(dbf_text, "state:%d", irq_ptr->state);
-	QDIO_DBF_TEXT4(0, trace, dbf_text);
-#endif /* CONFIG_QDIO_DEBUG */
-
-	cstat = irb->scsw.cmd.cstat;
-	dstat = irb->scsw.cmd.dstat;
-
-	switch (irq_ptr->state) {
-	case QDIO_IRQ_STATE_INACTIVE:
-		qdio_establish_handle_irq(cdev, cstat, dstat);
-		break;
-
-	case QDIO_IRQ_STATE_CLEANUP:
-		qdio_set_state(irq_ptr, QDIO_IRQ_STATE_INACTIVE);
-		break;
-
-	case QDIO_IRQ_STATE_ESTABLISHED:
-	case QDIO_IRQ_STATE_ACTIVE:
-		if (cstat & SCHN_STAT_PCI) {
-			qdio_handle_pci(irq_ptr);
-			break;
-		}
-
-		if ((cstat&~SCHN_STAT_PCI)||dstat) {
-			qdio_handle_activate_check(cdev, intparm, cstat, dstat);
-			break;
-		}
-	default:
-		QDIO_PRINT_ERR("got interrupt for queues in state %d on " \
-			       "device %s?!\n",
-			       irq_ptr->state, cdev->dev.bus_id);
-	}
-	wake_up(&cdev->private->wait_q);
-
-}
-
-int
-qdio_synchronize(struct ccw_device *cdev, unsigned int flags,
-		 unsigned int queue_number)
-{
-	int cc = 0;
-	struct qdio_q *q;
-	struct qdio_irq *irq_ptr;
-	void *ptr;
-#ifdef CONFIG_QDIO_DEBUG
-	char dbf_text[15]="SyncXXXX";
-#endif
-
-	irq_ptr = cdev->private->qdio_data;
-	if (!irq_ptr)
-		return -ENODEV;
-
-#ifdef CONFIG_QDIO_DEBUG
-	*((int*)(&dbf_text[4])) = irq_ptr->schid.sch_no;
-	QDIO_DBF_HEX4(0,trace,dbf_text,QDIO_DBF_TRACE_LEN);
-	*((int*)(&dbf_text[0]))=flags;
-	*((int*)(&dbf_text[4]))=queue_number;
-	QDIO_DBF_HEX4(0,trace,dbf_text,QDIO_DBF_TRACE_LEN);
-#endif /* CONFIG_QDIO_DEBUG */
-
-	if (flags&QDIO_FLAG_SYNC_INPUT) {
-		q=irq_ptr->input_qs[queue_number];
-		if (!q)
-			return -EINVAL;
-		if (!(irq_ptr->is_qebsm))
-			cc = do_siga_sync(q->schid, 0, q->mask);
-	} else if (flags&QDIO_FLAG_SYNC_OUTPUT) {
-		q=irq_ptr->output_qs[queue_number];
-		if (!q)
-			return -EINVAL;
-		if (!(irq_ptr->is_qebsm))
-			cc = do_siga_sync(q->schid, q->mask, 0);
-	} else 
-		return -EINVAL;
-
-	ptr=&cc;
-	if (cc)
-		QDIO_DBF_HEX3(0,trace,&ptr,sizeof(int));
-
-	return cc;
-}
-
-static int
-qdio_get_ssqd_information(struct subchannel_id *schid,
-			  struct qdio_chsc_ssqd **ssqd_area)
-{
-	int result;
-
-	QDIO_DBF_TEXT0(0, setup, "getssqd");
-	*ssqd_area = mempool_alloc(qdio_mempool_scssc, GFP_ATOMIC);
-	if (!ssqd_area) {
-		QDIO_PRINT_WARN("Could not get memory for chsc on sch x%x.\n",
-				schid->sch_no);
-		return -ENOMEM;
-	}
-
-	(*ssqd_area)->request = (struct chsc_header) {
-		.length = 0x0010,
-		.code	= 0x0024,
-	};
-	(*ssqd_area)->first_sch = schid->sch_no;
-	(*ssqd_area)->last_sch = schid->sch_no;
-	(*ssqd_area)->ssid = schid->ssid;
-	result = chsc(*ssqd_area);
-
-	if (result) {
-		QDIO_PRINT_WARN("CHSC returned cc %i on sch 0.%x.%x.\n",
-				result, schid->ssid, schid->sch_no);
-		goto out;
-	}
-
-	if ((*ssqd_area)->response.code != QDIO_CHSC_RESPONSE_CODE_OK) {
-		QDIO_PRINT_WARN("CHSC response is 0x%x on sch 0.%x.%x.\n",
-				(*ssqd_area)->response.code,
-				schid->ssid, schid->sch_no);
-		goto out;
-	}
-	if (!((*ssqd_area)->flags & CHSC_FLAG_QDIO_CAPABILITY) ||
-	    !((*ssqd_area)->flags & CHSC_FLAG_VALIDITY) ||
-	    ((*ssqd_area)->sch != schid->sch_no)) {
-		QDIO_PRINT_WARN("huh? problems checking out sch 0.%x.%x... " \
-				"using all SIGAs.\n",
-				schid->ssid, schid->sch_no);
-		goto out;
-	}
-	return 0;
-out:
-	return -EINVAL;
-}
-
-int
-qdio_get_ssqd_pct(struct ccw_device *cdev)
-{
-	struct qdio_chsc_ssqd *ssqd_area;
-	struct subchannel_id schid;
-	char dbf_text[15];
-	int rc;
-	int pct = 0;
-
-	QDIO_DBF_TEXT0(0, setup, "getpct");
-	schid = ccw_device_get_subchannel_id(cdev);
-	rc = qdio_get_ssqd_information(&schid, &ssqd_area);
-	if (!rc)
-		pct = (int)ssqd_area->pct;
-	if (rc != -ENOMEM)
-		mempool_free(ssqd_area, qdio_mempool_scssc);
-	sprintf(dbf_text, "pct: %d", pct);
-	QDIO_DBF_TEXT2(0, setup, dbf_text);
-	return pct;
-}
-EXPORT_SYMBOL(qdio_get_ssqd_pct);
-
-static void
-qdio_check_subchannel_qebsm(struct qdio_irq *irq_ptr, unsigned long token)
-{
-	struct qdio_q *q;
-	int i;
-	unsigned int count, start_buf;
-	char dbf_text[15];
-
-	/*check if QEBSM is disabled */
-	if (!(irq_ptr->is_qebsm) || !(irq_ptr->qdioac & 0x01)) {
-		irq_ptr->is_qebsm  = 0;
-		irq_ptr->sch_token = 0;
-		irq_ptr->qib.rflags &= ~QIB_RFLAGS_ENABLE_QEBSM;
-		QDIO_DBF_TEXT0(0,setup,"noV=V");
-		return;
-	}
-	irq_ptr->sch_token = token;
-	/*input queue*/
-	for (i = 0; i < irq_ptr->no_input_qs;i++) {
-		q = irq_ptr->input_qs[i];
-		count = QDIO_MAX_BUFFERS_PER_Q;
-		start_buf = 0;
-		set_slsb(q, &start_buf, SLSB_P_INPUT_NOT_INIT, &count);
-	}
-	sprintf(dbf_text,"V=V:%2x",irq_ptr->is_qebsm);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-	sprintf(dbf_text,"%8lx",irq_ptr->sch_token);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-	/*output queue*/
-	for (i = 0; i < irq_ptr->no_output_qs; i++) {
-		q = irq_ptr->output_qs[i];
-		count = QDIO_MAX_BUFFERS_PER_Q;
-		start_buf = 0;
-		set_slsb(q, &start_buf, SLSB_P_OUTPUT_NOT_INIT, &count);
-	}
-}
-
-static void
-qdio_get_ssqd_siga(struct qdio_irq *irq_ptr)
-{
-	int rc;
-	struct qdio_chsc_ssqd *ssqd_area;
-
-	QDIO_DBF_TEXT0(0,setup,"getssqd");
-	irq_ptr->qdioac = 0;
-	rc = qdio_get_ssqd_information(&irq_ptr->schid, &ssqd_area);
-	if (rc) {
-		QDIO_PRINT_WARN("using all SIGAs for sch x%x.n",
-			irq_ptr->schid.sch_no);
-		irq_ptr->qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY |
-				  CHSC_FLAG_SIGA_OUTPUT_NECESSARY |
-				  CHSC_FLAG_SIGA_SYNC_NECESSARY; /* all flags set */
-		irq_ptr->is_qebsm = 0;
-	} else
-		irq_ptr->qdioac = ssqd_area->qdioac1;
-
-	qdio_check_subchannel_qebsm(irq_ptr, ssqd_area->sch_token);
-	if (rc != -ENOMEM)
-		mempool_free(ssqd_area, qdio_mempool_scssc);
-}
-
-static unsigned int
-tiqdio_check_chsc_availability(void)
-{
-	char dbf_text[15];
-
-	/* Check for bit 41. */
-	if (!css_general_characteristics.aif) {
-		QDIO_PRINT_WARN("Adapter interruption facility not " \
-				"installed.\n");
-		return -ENOENT;
-	}
-
-	/* Check for bits 107 and 108. */
-	if (!css_chsc_characteristics.scssc ||
-	    !css_chsc_characteristics.scsscf) {
-		QDIO_PRINT_WARN("Set Chan Subsys. Char. & Fast-CHSCs " \
-				"not available.\n");
-		return -ENOENT;
-	}
-
-	/* Check for OSA/FCP thin interrupts (bit 67). */
-	hydra_thinints = css_general_characteristics.aif_osa;
-	sprintf(dbf_text,"hydrati%1x", hydra_thinints);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-
-#ifdef CONFIG_64BIT
-	/* Check for QEBSM support in general (bit 58). */
-	is_passthrough = css_general_characteristics.qebsm;
-#endif
-	sprintf(dbf_text,"cssQBS:%1x", is_passthrough);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-
-	/* Check for aif time delay disablement fac (bit 56). If installed,
-	 * omit svs even under lpar (good point by rick again) */
-	omit_svs = css_general_characteristics.aif_tdd;
-	sprintf(dbf_text,"omitsvs%1x", omit_svs);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-	return 0;
-}
-
-
-static unsigned int
-tiqdio_set_subchannel_ind(struct qdio_irq *irq_ptr, int reset_to_zero)
-{
-	unsigned long real_addr_local_summary_bit;
-	unsigned long real_addr_dev_st_chg_ind;
-	void *ptr;
-	char dbf_text[15];
-
-	unsigned int resp_code;
-	int result;
-
-	struct {
-		struct chsc_header request;
-		u16 operation_code;
-		u16 reserved1;
-		u32 reserved2;
-		u32 reserved3;
-		u64 summary_indicator_addr;
-		u64 subchannel_indicator_addr;
-		u32 ks:4;
-		u32 kc:4;
-		u32 reserved4:21;
-		u32 isc:3;
-		u32 word_with_d_bit;
-		/* set to 0x10000000 to enable
-		 * time delay disablement facility */
-		u32 reserved5;
-		struct subchannel_id schid;
-		u32 reserved6[1004];
-		struct chsc_header response;
-		u32 reserved7;
-	} *scssc_area;
-
-	if (!irq_ptr->is_thinint_irq)
-		return -ENODEV;
-
-	if (reset_to_zero) {
-		real_addr_local_summary_bit=0;
-		real_addr_dev_st_chg_ind=0;
-	} else {
-		real_addr_local_summary_bit=
-			virt_to_phys((volatile void *)tiqdio_ind);
-		real_addr_dev_st_chg_ind=
-			virt_to_phys((volatile void *)irq_ptr->dev_st_chg_ind);
-	}
-
-	scssc_area = mempool_alloc(qdio_mempool_scssc, GFP_ATOMIC);
-	if (!scssc_area) {
-		QDIO_PRINT_WARN("No memory for setting indicators on " \
-				"subchannel 0.%x.%x.\n",
-				irq_ptr->schid.ssid, irq_ptr->schid.sch_no);
-		return -ENOMEM;
-	}
-	scssc_area->request = (struct chsc_header) {
-		.length = 0x0fe0,
-		.code   = 0x0021,
-	};
-	scssc_area->operation_code = 0;
-
-        scssc_area->summary_indicator_addr = real_addr_local_summary_bit;
-	scssc_area->subchannel_indicator_addr = real_addr_dev_st_chg_ind;
-	scssc_area->ks = QDIO_STORAGE_KEY;
-	scssc_area->kc = QDIO_STORAGE_KEY;
-	scssc_area->isc = TIQDIO_THININT_ISC;
-	scssc_area->schid = irq_ptr->schid;
-	/* enables the time delay disablement facility. Don't care
-	 * whether it is really there (i.e. we haven't checked for
-	 * it) */
-	if (css_general_characteristics.aif_tdd)
-		scssc_area->word_with_d_bit = 0x10000000;
-	else
-		QDIO_PRINT_WARN("Time delay disablement facility " \
-				"not available\n");
-
-	result = chsc(scssc_area);
-	if (result) {
-		QDIO_PRINT_WARN("could not set indicators on irq 0.%x.%x, " \
-				"cc=%i.\n",
-				irq_ptr->schid.ssid, irq_ptr->schid.sch_no,result);
-		result = -EIO;
-		goto out;
-	}
-
-	resp_code = scssc_area->response.code;
-	if (resp_code!=QDIO_CHSC_RESPONSE_CODE_OK) {
-		QDIO_PRINT_WARN("response upon setting indicators " \
-				"is 0x%x.\n",resp_code);
-		sprintf(dbf_text,"sidR%4x",resp_code);
-		QDIO_DBF_TEXT1(0,trace,dbf_text);
-		QDIO_DBF_TEXT1(0,setup,dbf_text);
-		ptr=&scssc_area->response;
-		QDIO_DBF_HEX2(1,setup,&ptr,QDIO_DBF_SETUP_LEN);
-		result = -EIO;
-		goto out;
-	}
-
-	QDIO_DBF_TEXT2(0,setup,"setscind");
-	QDIO_DBF_HEX2(0,setup,&real_addr_local_summary_bit,
-		      sizeof(unsigned long));
-	QDIO_DBF_HEX2(0,setup,&real_addr_dev_st_chg_ind,sizeof(unsigned long));
-	result = 0;
-out:
-	mempool_free(scssc_area, qdio_mempool_scssc);
-	return result;
-
-}
-
-static unsigned int
-tiqdio_set_delay_target(struct qdio_irq *irq_ptr, unsigned long delay_target)
-{
-	unsigned int resp_code;
-	int result;
-	void *ptr;
-	char dbf_text[15];
-
-	struct {
-		struct chsc_header request;
-		u16 operation_code;
-		u16 reserved1;
-		u32 reserved2;
-		u32 reserved3;
-		u32 reserved4[2];
-		u32 delay_target;
-		u32 reserved5[1009];
-		struct chsc_header response;
-		u32 reserved6;
-	} *scsscf_area;
-
-	if (!irq_ptr->is_thinint_irq)
-		return -ENODEV;
-
-	scsscf_area = mempool_alloc(qdio_mempool_scssc, GFP_ATOMIC);
-	if (!scsscf_area) {
-		QDIO_PRINT_WARN("No memory for setting delay target on " \
-				"subchannel 0.%x.%x.\n",
-				irq_ptr->schid.ssid, irq_ptr->schid.sch_no);
-		return -ENOMEM;
-	}
-	scsscf_area->request = (struct chsc_header) {
-		.length = 0x0fe0,
-		.code   = 0x1027,
-	};
-
-	scsscf_area->delay_target = delay_target<<16;
-
-	result=chsc(scsscf_area);
-	if (result) {
-		QDIO_PRINT_WARN("could not set delay target on irq 0.%x.%x, " \
-				"cc=%i. Continuing.\n",
-				irq_ptr->schid.ssid, irq_ptr->schid.sch_no,
-				result);
-		result = -EIO;
-		goto out;
-	}
-
-	resp_code = scsscf_area->response.code;
-	if (resp_code!=QDIO_CHSC_RESPONSE_CODE_OK) {
-		QDIO_PRINT_WARN("response upon setting delay target " \
-				"is 0x%x. Continuing.\n",resp_code);
-		sprintf(dbf_text,"sdtR%4x",resp_code);
-		QDIO_DBF_TEXT1(0,trace,dbf_text);
-		QDIO_DBF_TEXT1(0,setup,dbf_text);
-		ptr=&scsscf_area->response;
-		QDIO_DBF_HEX2(1,trace,&ptr,QDIO_DBF_TRACE_LEN);
-	}
-	QDIO_DBF_TEXT2(0,trace,"delytrgt");
-	QDIO_DBF_HEX2(0,trace,&delay_target,sizeof(unsigned long));
-	result = 0; /* not critical */
-out:
-	mempool_free(scsscf_area, qdio_mempool_scssc);
-	return result;
-}
-
-int
-qdio_cleanup(struct ccw_device *cdev, int how)
-{
-	struct qdio_irq *irq_ptr;
-	char dbf_text[15];
-	int rc;
-
-	irq_ptr = cdev->private->qdio_data;
-	if (!irq_ptr)
-		return -ENODEV;
-
-	sprintf(dbf_text,"qcln%4x",irq_ptr->schid.sch_no);
-	QDIO_DBF_TEXT1(0,trace,dbf_text);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-
-	rc = qdio_shutdown(cdev, how);
-	if ((rc == 0) || (rc == -EINPROGRESS))
-		rc = qdio_free(cdev);
-	return rc;
-}
-
-int
-qdio_shutdown(struct ccw_device *cdev, int how)
-{
-	struct qdio_irq *irq_ptr;
-	int i;
-	int result = 0;
-	int rc;
-	unsigned long flags;
-	int timeout;
-	char dbf_text[15];
-
-	irq_ptr = cdev->private->qdio_data;
-	if (!irq_ptr)
-		return -ENODEV;
-
-	down(&irq_ptr->setting_up_sema);
-
-	sprintf(dbf_text,"qsqs%4x",irq_ptr->schid.sch_no);
-	QDIO_DBF_TEXT1(0,trace,dbf_text);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-
-	/* mark all qs as uninteresting */
-	for (i=0;i<irq_ptr->no_input_qs;i++)
-		atomic_set(&irq_ptr->input_qs[i]->is_in_shutdown,1);
-
-	for (i=0;i<irq_ptr->no_output_qs;i++)
-		atomic_set(&irq_ptr->output_qs[i]->is_in_shutdown,1);
-
-	tasklet_kill(&tiqdio_tasklet);
-
-	for (i=0;i<irq_ptr->no_input_qs;i++) {
-		qdio_unmark_q(irq_ptr->input_qs[i]);
-		tasklet_kill(&irq_ptr->input_qs[i]->tasklet);
-		wait_event_interruptible_timeout(cdev->private->wait_q,
-						 !atomic_read(&irq_ptr->
-							      input_qs[i]->
-							      use_count),
-						 QDIO_NO_USE_COUNT_TIMEOUT);
-		if (atomic_read(&irq_ptr->input_qs[i]->use_count))
-			result=-EINPROGRESS;
-	}
-
-	for (i=0;i<irq_ptr->no_output_qs;i++) {
-		tasklet_kill(&irq_ptr->output_qs[i]->tasklet);
-		del_timer(&irq_ptr->output_qs[i]->timer);
-		wait_event_interruptible_timeout(cdev->private->wait_q,
-						 !atomic_read(&irq_ptr->
-							      output_qs[i]->
-							      use_count),
-						 QDIO_NO_USE_COUNT_TIMEOUT);
-		if (atomic_read(&irq_ptr->output_qs[i]->use_count))
-			result=-EINPROGRESS;
-	}
-
-	/* cleanup subchannel */
-	spin_lock_irqsave(get_ccwdev_lock(cdev),flags);
-	if (how&QDIO_FLAG_CLEANUP_USING_CLEAR) {
-		rc = ccw_device_clear(cdev, QDIO_DOING_CLEANUP);
-		timeout=QDIO_CLEANUP_CLEAR_TIMEOUT;
-	} else if (how&QDIO_FLAG_CLEANUP_USING_HALT) {
-		rc = ccw_device_halt(cdev, QDIO_DOING_CLEANUP);
-		timeout=QDIO_CLEANUP_HALT_TIMEOUT;
-	} else { /* default behaviour */
-		rc = ccw_device_halt(cdev, QDIO_DOING_CLEANUP);
-		timeout=QDIO_CLEANUP_HALT_TIMEOUT;
-	}
-	if (rc == -ENODEV) {
-		/* No need to wait for device no longer present. */
-		qdio_set_state(irq_ptr, QDIO_IRQ_STATE_INACTIVE);
-		spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags);
-	} else if (((void *)cdev->handler != (void *)qdio_handler) && rc == 0) {
-		/*
-		 * Whoever put another handler there, has to cope with the
-		 * interrupt theirself. Might happen if qdio_shutdown was
-		 * called on already shutdown queues, but this shouldn't have
-		 * bad side effects.
-		 */
-		qdio_set_state(irq_ptr, QDIO_IRQ_STATE_INACTIVE);
-		spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags);
-	} else if (rc == 0) {
-		qdio_set_state(irq_ptr, QDIO_IRQ_STATE_CLEANUP);
-		spin_unlock_irqrestore(get_ccwdev_lock(cdev),flags);
-
-		wait_event_interruptible_timeout(cdev->private->wait_q,
-			irq_ptr->state == QDIO_IRQ_STATE_INACTIVE ||
-			irq_ptr->state == QDIO_IRQ_STATE_ERR,
-			timeout);
-	} else {
-		QDIO_PRINT_INFO("ccw_device_{halt,clear} returned %d for "
-				"device %s\n", result, cdev->dev.bus_id);
-		spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags);
-		result = rc;
-		goto out;
-	}
-	if (irq_ptr->is_thinint_irq) {
-		qdio_put_indicator((__u32*)irq_ptr->dev_st_chg_ind);
-		tiqdio_set_subchannel_ind(irq_ptr,1); 
-                /* reset adapter interrupt indicators */
-	}
-
- 	/* exchange int handlers, if necessary */
- 	if ((void*)cdev->handler == (void*)qdio_handler)
- 		cdev->handler=irq_ptr->original_int_handler;
-
-	/* Ignore errors. */
-	qdio_set_state(irq_ptr, QDIO_IRQ_STATE_INACTIVE);
-out:
-	up(&irq_ptr->setting_up_sema);
-	return result;
-}
-
-int
-qdio_free(struct ccw_device *cdev)
-{
-	struct qdio_irq *irq_ptr;
-	char dbf_text[15];
-
-	irq_ptr = cdev->private->qdio_data;
-	if (!irq_ptr)
-		return -ENODEV;
-
-	down(&irq_ptr->setting_up_sema);
-
-	sprintf(dbf_text,"qfqs%4x",irq_ptr->schid.sch_no);
-	QDIO_DBF_TEXT1(0,trace,dbf_text);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-
-	cdev->private->qdio_data = NULL;
-
-	up(&irq_ptr->setting_up_sema);
-
-	qdio_release_irq_memory(irq_ptr);
-	module_put(THIS_MODULE);
-	return 0;
-}
-
-static void
-qdio_allocate_do_dbf(struct qdio_initialize *init_data)
-{
-	char dbf_text[20]; /* if a printf printed out more than 8 chars */
-
-	sprintf(dbf_text,"qfmt:%x",init_data->q_format);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-	QDIO_DBF_HEX0(0,setup,init_data->adapter_name,8);
-	sprintf(dbf_text,"qpff%4x",init_data->qib_param_field_format);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-	QDIO_DBF_HEX0(0,setup,&init_data->qib_param_field,sizeof(char*));
-	QDIO_DBF_HEX0(0,setup,&init_data->input_slib_elements,sizeof(long*));
-	QDIO_DBF_HEX0(0,setup,&init_data->output_slib_elements,sizeof(long*));
-	sprintf(dbf_text,"miit%4x",init_data->min_input_threshold);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-	sprintf(dbf_text,"mait%4x",init_data->max_input_threshold);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-	sprintf(dbf_text,"miot%4x",init_data->min_output_threshold);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-	sprintf(dbf_text,"maot%4x",init_data->max_output_threshold);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-	sprintf(dbf_text,"niq:%4x",init_data->no_input_qs);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-	sprintf(dbf_text,"noq:%4x",init_data->no_output_qs);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-	QDIO_DBF_HEX0(0,setup,&init_data->input_handler,sizeof(void*));
-	QDIO_DBF_HEX0(0,setup,&init_data->output_handler,sizeof(void*));
-	QDIO_DBF_HEX0(0,setup,&init_data->int_parm,sizeof(long));
-	QDIO_DBF_HEX0(0,setup,&init_data->flags,sizeof(long));
-	QDIO_DBF_HEX0(0,setup,&init_data->input_sbal_addr_array,sizeof(void*));
-	QDIO_DBF_HEX0(0,setup,&init_data->output_sbal_addr_array,sizeof(void*));
-}
-
-static void
-qdio_allocate_fill_input_desc(struct qdio_irq *irq_ptr, int i, int iqfmt)
-{
-	irq_ptr->input_qs[i]->is_iqdio_q = iqfmt;
-	irq_ptr->input_qs[i]->is_thinint_q = irq_ptr->is_thinint_irq;
-
-	irq_ptr->qdr->qdf0[i].sliba=(unsigned long)(irq_ptr->input_qs[i]->slib);
-
-	irq_ptr->qdr->qdf0[i].sla=(unsigned long)(irq_ptr->input_qs[i]->sl);
-
-	irq_ptr->qdr->qdf0[i].slsba=
-		(unsigned long)(&irq_ptr->input_qs[i]->slsb.acc.val[0]);
-
-	irq_ptr->qdr->qdf0[i].akey=QDIO_STORAGE_KEY;
-	irq_ptr->qdr->qdf0[i].bkey=QDIO_STORAGE_KEY;
-	irq_ptr->qdr->qdf0[i].ckey=QDIO_STORAGE_KEY;
-	irq_ptr->qdr->qdf0[i].dkey=QDIO_STORAGE_KEY;
-}
-
-static void
-qdio_allocate_fill_output_desc(struct qdio_irq *irq_ptr, int i,
-			       int j, int iqfmt)
-{
-	irq_ptr->output_qs[i]->is_iqdio_q = iqfmt;
-	irq_ptr->output_qs[i]->is_thinint_q = irq_ptr->is_thinint_irq;
-
-	irq_ptr->qdr->qdf0[i+j].sliba=(unsigned long)(irq_ptr->output_qs[i]->slib);
-
-	irq_ptr->qdr->qdf0[i+j].sla=(unsigned long)(irq_ptr->output_qs[i]->sl);
-
-	irq_ptr->qdr->qdf0[i+j].slsba=
-		(unsigned long)(&irq_ptr->output_qs[i]->slsb.acc.val[0]);
-
-	irq_ptr->qdr->qdf0[i+j].akey=QDIO_STORAGE_KEY;
-	irq_ptr->qdr->qdf0[i+j].bkey=QDIO_STORAGE_KEY;
-	irq_ptr->qdr->qdf0[i+j].ckey=QDIO_STORAGE_KEY;
-	irq_ptr->qdr->qdf0[i+j].dkey=QDIO_STORAGE_KEY;
-}
-
-
-static void
-qdio_initialize_set_siga_flags_input(struct qdio_irq *irq_ptr)
-{
-	int i;
-
-	for (i=0;i<irq_ptr->no_input_qs;i++) {
-		irq_ptr->input_qs[i]->siga_sync=
-			irq_ptr->qdioac&CHSC_FLAG_SIGA_SYNC_NECESSARY;
-		irq_ptr->input_qs[i]->siga_in=
-			irq_ptr->qdioac&CHSC_FLAG_SIGA_INPUT_NECESSARY;
-		irq_ptr->input_qs[i]->siga_out=
-			irq_ptr->qdioac&CHSC_FLAG_SIGA_OUTPUT_NECESSARY;
-		irq_ptr->input_qs[i]->siga_sync_done_on_thinints=
-			irq_ptr->qdioac&CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS;
-		irq_ptr->input_qs[i]->hydra_gives_outbound_pcis=
-			irq_ptr->hydra_gives_outbound_pcis;
-		irq_ptr->input_qs[i]->siga_sync_done_on_outb_tis=
-			((irq_ptr->qdioac&
-			  (CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS|
-			   CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS))==
-			 (CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS|
-			  CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS));
-
-	}
-}
-
-static void
-qdio_initialize_set_siga_flags_output(struct qdio_irq *irq_ptr)
-{
-	int i;
-
-	for (i=0;i<irq_ptr->no_output_qs;i++) {
-		irq_ptr->output_qs[i]->siga_sync=
-			irq_ptr->qdioac&CHSC_FLAG_SIGA_SYNC_NECESSARY;
-		irq_ptr->output_qs[i]->siga_in=
-			irq_ptr->qdioac&CHSC_FLAG_SIGA_INPUT_NECESSARY;
-		irq_ptr->output_qs[i]->siga_out=
-			irq_ptr->qdioac&CHSC_FLAG_SIGA_OUTPUT_NECESSARY;
-		irq_ptr->output_qs[i]->siga_sync_done_on_thinints=
-			irq_ptr->qdioac&CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS;
-		irq_ptr->output_qs[i]->hydra_gives_outbound_pcis=
-			irq_ptr->hydra_gives_outbound_pcis;
-		irq_ptr->output_qs[i]->siga_sync_done_on_outb_tis=
-			((irq_ptr->qdioac&
-			  (CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS|
-			   CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS))==
-			 (CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS|
-			  CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS));
-
-	}
-}
-
-static int
-qdio_establish_irq_check_for_errors(struct ccw_device *cdev, int cstat,
-				    int dstat)
-{
-	char dbf_text[15];
-	struct qdio_irq *irq_ptr;
-
-	irq_ptr = cdev->private->qdio_data;
-
-	if (cstat || (dstat & ~(DEV_STAT_CHN_END|DEV_STAT_DEV_END))) {
-		sprintf(dbf_text,"ick1%4x",irq_ptr->schid.sch_no);
-		QDIO_DBF_TEXT2(1,trace,dbf_text);
-		QDIO_DBF_HEX2(0,trace,&dstat,sizeof(int));
-		QDIO_DBF_HEX2(0,trace,&cstat,sizeof(int));
-		QDIO_PRINT_ERR("received check condition on establish " \
-			       "queues on irq 0.%x.%x (cs=x%x, ds=x%x).\n",
-			       irq_ptr->schid.ssid, irq_ptr->schid.sch_no,
-			       cstat,dstat);
-		qdio_set_state(irq_ptr,QDIO_IRQ_STATE_ERR);
-	}
-	
-	if (!(dstat & DEV_STAT_DEV_END)) {
-		QDIO_DBF_TEXT2(1,setup,"eq:no de");
-		QDIO_DBF_HEX2(0,setup,&dstat, sizeof(dstat));
-		QDIO_DBF_HEX2(0,setup,&cstat, sizeof(cstat));
-		QDIO_PRINT_ERR("establish queues on irq 0.%x.%04x: didn't get "
-			       "device end: dstat=%02x, cstat=%02x\n",
-			       irq_ptr->schid.ssid, irq_ptr->schid.sch_no,
-			       dstat, cstat);
-		qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
-		return 1;
-	}
-
-	if (dstat & ~(DEV_STAT_CHN_END|DEV_STAT_DEV_END)) {
-		QDIO_DBF_TEXT2(1,setup,"eq:badio");
-		QDIO_DBF_HEX2(0,setup,&dstat, sizeof(dstat));
-		QDIO_DBF_HEX2(0,setup,&cstat, sizeof(cstat));
-		QDIO_PRINT_ERR("establish queues on irq 0.%x.%04x: got "
-			       "the following devstat: dstat=%02x, "
-			       "cstat=%02x\n", irq_ptr->schid.ssid,
-			       irq_ptr->schid.sch_no, dstat, cstat);
-		qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
-		return 1;
-	}
-	return 0;
-}
-
-static void
-qdio_establish_handle_irq(struct ccw_device *cdev, int cstat, int dstat)
-{
-	struct qdio_irq *irq_ptr;
-	char dbf_text[15];
-
-	irq_ptr = cdev->private->qdio_data;
-
-	sprintf(dbf_text,"qehi%4x",cdev->private->schid.sch_no);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-	QDIO_DBF_TEXT0(0,trace,dbf_text);
-
-	if (qdio_establish_irq_check_for_errors(cdev, cstat, dstat))
-		return;
-
-	qdio_set_state(irq_ptr,QDIO_IRQ_STATE_ESTABLISHED);
-}
-
-int
-qdio_initialize(struct qdio_initialize *init_data)
-{
-	int rc;
-	char dbf_text[15];
-
-	sprintf(dbf_text,"qini%4x",init_data->cdev->private->schid.sch_no);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-	QDIO_DBF_TEXT0(0,trace,dbf_text);
-
-	rc = qdio_allocate(init_data);
-	if (rc == 0) {
-		rc = qdio_establish(init_data);
-		if (rc != 0)
-			qdio_free(init_data->cdev);
-	}
-
-	return rc;
-}
-
-
-int
-qdio_allocate(struct qdio_initialize *init_data)
-{
-	struct qdio_irq *irq_ptr;
-	char dbf_text[15];
-
-	sprintf(dbf_text,"qalc%4x",init_data->cdev->private->schid.sch_no);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-	QDIO_DBF_TEXT0(0,trace,dbf_text);
-	if ( (init_data->no_input_qs>QDIO_MAX_QUEUES_PER_IRQ) ||
-	     (init_data->no_output_qs>QDIO_MAX_QUEUES_PER_IRQ) ||
-	     ((init_data->no_input_qs) && (!init_data->input_handler)) ||
-	     ((init_data->no_output_qs) && (!init_data->output_handler)) )
-		return -EINVAL;
-
-	if (!init_data->input_sbal_addr_array)
-		return -EINVAL;
-
-	if (!init_data->output_sbal_addr_array)
-		return -EINVAL;
-
-	qdio_allocate_do_dbf(init_data);
-
-	/* create irq */
-	irq_ptr = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
-
-	QDIO_DBF_TEXT0(0,setup,"irq_ptr:");
-	QDIO_DBF_HEX0(0,setup,&irq_ptr,sizeof(void*));
-
-	if (!irq_ptr) {
-		QDIO_PRINT_ERR("allocation of irq_ptr failed!\n");
-		return -ENOMEM;
-	}
-
-	init_MUTEX(&irq_ptr->setting_up_sema);
-
-	/* QDR must be in DMA area since CCW data address is only 32 bit */
-	irq_ptr->qdr = (struct qdr *) __get_free_page(GFP_KERNEL | GFP_DMA);
-  	if (!(irq_ptr->qdr)) {
-   		free_page((unsigned long) irq_ptr);
-		QDIO_PRINT_ERR("allocation of irq_ptr->qdr failed!\n");
-		return -ENOMEM;
-       	}
-	QDIO_DBF_TEXT0(0,setup,"qdr:");
-	QDIO_DBF_HEX0(0,setup,&irq_ptr->qdr,sizeof(void*));
-
-	if (qdio_alloc_qs(irq_ptr,
-       			  init_data->no_input_qs,
-			  init_data->no_output_qs)) {
-		QDIO_PRINT_ERR("queue allocation failed!\n");
-		qdio_release_irq_memory(irq_ptr);
-		return -ENOMEM;
-	}
-
-	init_data->cdev->private->qdio_data = irq_ptr;
-
-	qdio_set_state(irq_ptr,QDIO_IRQ_STATE_INACTIVE);
-
-	return 0;
-}
-
-static int qdio_fill_irq(struct qdio_initialize *init_data)
-{
-	int i;
-	char dbf_text[15];
-	struct ciw *ciw;
-	int is_iqdio;
-	struct qdio_irq *irq_ptr;
-
-	irq_ptr = init_data->cdev->private->qdio_data;
-
-	memset(irq_ptr,0,((char*)&irq_ptr->qdr)-((char*)irq_ptr));
-
-        /* wipes qib.ac, required by ar7063 */
-	memset(irq_ptr->qdr,0,sizeof(struct qdr));
-
-	irq_ptr->int_parm=init_data->int_parm;
-
-	irq_ptr->schid = ccw_device_get_subchannel_id(init_data->cdev);
-	irq_ptr->no_input_qs=init_data->no_input_qs;
-	irq_ptr->no_output_qs=init_data->no_output_qs;
-
-	if (init_data->q_format==QDIO_IQDIO_QFMT) {
-		irq_ptr->is_iqdio_irq=1;
-		irq_ptr->is_thinint_irq=1;
-	} else {
-		irq_ptr->is_iqdio_irq=0;
-		irq_ptr->is_thinint_irq=hydra_thinints;
-	}
-	sprintf(dbf_text,"is_i_t%1x%1x",
-		irq_ptr->is_iqdio_irq,irq_ptr->is_thinint_irq);
-	QDIO_DBF_TEXT2(0,setup,dbf_text);
-
-	if (irq_ptr->is_thinint_irq) {
-		irq_ptr->dev_st_chg_ind = qdio_get_indicator();
-		QDIO_DBF_HEX1(0,setup,&irq_ptr->dev_st_chg_ind,sizeof(void*));
-		if (!irq_ptr->dev_st_chg_ind) {
-			QDIO_PRINT_WARN("no indicator location available " \
-					"for irq 0.%x.%x\n",
-					irq_ptr->schid.ssid, irq_ptr->schid.sch_no);
-			qdio_release_irq_memory(irq_ptr);
-			return -ENOBUFS;
-		}
-	}
-
-	/* defaults */
-	irq_ptr->equeue.cmd=DEFAULT_ESTABLISH_QS_CMD;
-	irq_ptr->equeue.count=DEFAULT_ESTABLISH_QS_COUNT;
-	irq_ptr->aqueue.cmd=DEFAULT_ACTIVATE_QS_CMD;
-	irq_ptr->aqueue.count=DEFAULT_ACTIVATE_QS_COUNT;
-
-	qdio_fill_qs(irq_ptr, init_data->cdev,
-		     init_data->no_input_qs,
-		     init_data->no_output_qs,
-		     init_data->input_handler,
-		     init_data->output_handler,init_data->int_parm,
-		     init_data->q_format,init_data->flags,
-	   	     init_data->input_sbal_addr_array,
-   		     init_data->output_sbal_addr_array);
-
-	if (!try_module_get(THIS_MODULE)) {
-		QDIO_PRINT_CRIT("try_module_get() failed!\n");
-		qdio_release_irq_memory(irq_ptr);
-		return -EINVAL;
-	}
-
-	qdio_fill_thresholds(irq_ptr,init_data->no_input_qs,
-			     init_data->no_output_qs,
-			     init_data->min_input_threshold,
-			     init_data->max_input_threshold,
-			     init_data->min_output_threshold,
-			     init_data->max_output_threshold);
-
-	/* fill in qdr */
-	irq_ptr->qdr->qfmt=init_data->q_format;
-	irq_ptr->qdr->iqdcnt=init_data->no_input_qs;
-	irq_ptr->qdr->oqdcnt=init_data->no_output_qs;
-	irq_ptr->qdr->iqdsz=sizeof(struct qdesfmt0)/4; /* size in words */
-	irq_ptr->qdr->oqdsz=sizeof(struct qdesfmt0)/4;
-
-	irq_ptr->qdr->qiba=(unsigned long)&irq_ptr->qib;
-	irq_ptr->qdr->qkey=QDIO_STORAGE_KEY;
-
-	/* fill in qib */
-	irq_ptr->is_qebsm = is_passthrough;
-	if (irq_ptr->is_qebsm)
-		irq_ptr->qib.rflags |= QIB_RFLAGS_ENABLE_QEBSM;
-
-	irq_ptr->qib.qfmt=init_data->q_format;
-	if (init_data->no_input_qs)
-		irq_ptr->qib.isliba=(unsigned long)(irq_ptr->input_qs[0]->slib);
-	if (init_data->no_output_qs)
-		irq_ptr->qib.osliba=(unsigned long)(irq_ptr->output_qs[0]->slib);
-	memcpy(irq_ptr->qib.ebcnam,init_data->adapter_name,8);
-
-	qdio_set_impl_params(irq_ptr,init_data->qib_param_field_format,
-			     init_data->qib_param_field,
-			     init_data->no_input_qs,
-			     init_data->no_output_qs,
-			     init_data->input_slib_elements,
-			     init_data->output_slib_elements);
-
-	/* first input descriptors, then output descriptors */
-	is_iqdio = (init_data->q_format == QDIO_IQDIO_QFMT) ? 1 : 0;
-	for (i=0;i<init_data->no_input_qs;i++)
-		qdio_allocate_fill_input_desc(irq_ptr, i, is_iqdio);
-
-	for (i=0;i<init_data->no_output_qs;i++)
-		qdio_allocate_fill_output_desc(irq_ptr, i,
-					       init_data->no_input_qs,
-					       is_iqdio);
-
-	/* qdr, qib, sls, slsbs, slibs, sbales filled. */
-
-	/* get qdio commands */
-	ciw = ccw_device_get_ciw(init_data->cdev, CIW_TYPE_EQUEUE);
-	if (!ciw) {
-		QDIO_DBF_TEXT2(1,setup,"no eq");
-		QDIO_PRINT_INFO("No equeue CIW found for QDIO commands. "
-				"Trying to use default.\n");
-	} else
-		irq_ptr->equeue = *ciw;
-	ciw = ccw_device_get_ciw(init_data->cdev, CIW_TYPE_AQUEUE);
-	if (!ciw) {
-		QDIO_DBF_TEXT2(1,setup,"no aq");
-		QDIO_PRINT_INFO("No aqueue CIW found for QDIO commands. "
-				"Trying to use default.\n");
-	} else
-		irq_ptr->aqueue = *ciw;
-
-	/* Set new interrupt handler. */
-	irq_ptr->original_int_handler = init_data->cdev->handler;
-	init_data->cdev->handler = qdio_handler;
-
-	return 0;
-}
-
-int
-qdio_establish(struct qdio_initialize *init_data)
-{
-	struct qdio_irq *irq_ptr;
-	unsigned long saveflags;
-	int result, result2;
-	struct ccw_device *cdev;
-	char dbf_text[20];
-
-	cdev=init_data->cdev;
-	irq_ptr = cdev->private->qdio_data;
-	if (!irq_ptr)
-		return -EINVAL;
-
-	if (cdev->private->state != DEV_STATE_ONLINE)
-		return -EINVAL;
-	
-	down(&irq_ptr->setting_up_sema);
-
-	qdio_fill_irq(init_data);
-
-	/* the thinint CHSC stuff */
-	if (irq_ptr->is_thinint_irq) {
-
-		result = tiqdio_set_subchannel_ind(irq_ptr,0);
-		if (result) {
-			up(&irq_ptr->setting_up_sema);
-			qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR);
-			return result;
-		}
-		tiqdio_set_delay_target(irq_ptr,TIQDIO_DELAY_TARGET);
-	}
-
-	sprintf(dbf_text,"qest%4x",cdev->private->schid.sch_no);
-	QDIO_DBF_TEXT0(0,setup,dbf_text);
-	QDIO_DBF_TEXT0(0,trace,dbf_text);
-
-	/* establish q */
-	irq_ptr->ccw.cmd_code=irq_ptr->equeue.cmd;
-	irq_ptr->ccw.flags=CCW_FLAG_SLI;
-	irq_ptr->ccw.count=irq_ptr->equeue.count;
-	irq_ptr->ccw.cda=QDIO_GET_ADDR(irq_ptr->qdr);
-
-	spin_lock_irqsave(get_ccwdev_lock(cdev),saveflags);
-
-	ccw_device_set_options_mask(cdev, 0);
-	result = ccw_device_start(cdev, &irq_ptr->ccw,
-				QDIO_DOING_ESTABLISH, 0, 0);
-	if (result) {
-		result2 = ccw_device_start(cdev, &irq_ptr->ccw,
-					QDIO_DOING_ESTABLISH, 0, 0);
-		sprintf(dbf_text,"eq:io%4x",result);
-		QDIO_DBF_TEXT2(1,setup,dbf_text);
-		if (result2) {
-			sprintf(dbf_text,"eq:io%4x",result);
-			QDIO_DBF_TEXT2(1,setup,dbf_text);
-		}
-		QDIO_PRINT_WARN("establish queues on irq 0.%x.%04x: do_IO " \
-				"returned %i, next try returned %i\n",
-				irq_ptr->schid.ssid, irq_ptr->schid.sch_no,
-				result, result2);
-		result=result2;
-	}
-
-	spin_unlock_irqrestore(get_ccwdev_lock(cdev),saveflags);
-
-	if (result) {
-		up(&irq_ptr->setting_up_sema);
-		qdio_shutdown(cdev,QDIO_FLAG_CLEANUP_USING_CLEAR);
-		return result;
-	}
-	
-	wait_event_interruptible_timeout(cdev->private->wait_q,
-		irq_ptr->state == QDIO_IRQ_STATE_ESTABLISHED ||
-		irq_ptr->state == QDIO_IRQ_STATE_ERR,
-		QDIO_ESTABLISH_TIMEOUT);
-
-	if (irq_ptr->state == QDIO_IRQ_STATE_ESTABLISHED)
-		result = 0;
-	else {
-		up(&irq_ptr->setting_up_sema);
-		qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR);
-		return -EIO;
-	}
-
-	qdio_get_ssqd_siga(irq_ptr);
-	/* if this gets set once, we're running under VM and can omit SVSes */
-	if (irq_ptr->qdioac&CHSC_FLAG_SIGA_SYNC_NECESSARY)
-		omit_svs=1;
-
-	sprintf(dbf_text,"qdioac%2x",irq_ptr->qdioac);
-	QDIO_DBF_TEXT2(0,setup,dbf_text);
-
-	sprintf(dbf_text,"qib ac%2x",irq_ptr->qib.ac);
-	QDIO_DBF_TEXT2(0,setup,dbf_text);
-
-	irq_ptr->hydra_gives_outbound_pcis=
-		irq_ptr->qib.ac&QIB_AC_OUTBOUND_PCI_SUPPORTED;
-	irq_ptr->sync_done_on_outb_pcis=
-		irq_ptr->qdioac&CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS;
-
-	qdio_initialize_set_siga_flags_input(irq_ptr);
-	qdio_initialize_set_siga_flags_output(irq_ptr);
-
-	up(&irq_ptr->setting_up_sema);
-
-	return result;
-	
-}
-
-int
-qdio_activate(struct ccw_device *cdev, int flags)
-{
-	struct qdio_irq *irq_ptr;
-	int i,result=0,result2;
-	unsigned long saveflags;
-	char dbf_text[20]; /* see qdio_initialize */
-
-	irq_ptr = cdev->private->qdio_data;
-	if (!irq_ptr)
-		return -ENODEV;
-
-	if (cdev->private->state != DEV_STATE_ONLINE)
-		return -EINVAL;
-
-	down(&irq_ptr->setting_up_sema);
-	if (irq_ptr->state==QDIO_IRQ_STATE_INACTIVE) {
-		result=-EBUSY;
-		goto out;
-	}
-
-	sprintf(dbf_text,"qact%4x", irq_ptr->schid.sch_no);
-	QDIO_DBF_TEXT2(0,setup,dbf_text);
-	QDIO_DBF_TEXT2(0,trace,dbf_text);
-
-	/* activate q */
-	irq_ptr->ccw.cmd_code=irq_ptr->aqueue.cmd;
-	irq_ptr->ccw.flags=CCW_FLAG_SLI;
-	irq_ptr->ccw.count=irq_ptr->aqueue.count;
-	irq_ptr->ccw.cda=QDIO_GET_ADDR(0);
-
-	spin_lock_irqsave(get_ccwdev_lock(cdev),saveflags);
-
-	ccw_device_set_options(cdev, CCWDEV_REPORT_ALL);
-	result=ccw_device_start(cdev,&irq_ptr->ccw,QDIO_DOING_ACTIVATE,
-				0, DOIO_DENY_PREFETCH);
-	if (result) {
-		result2=ccw_device_start(cdev,&irq_ptr->ccw,
-					 QDIO_DOING_ACTIVATE,0,0);
-		sprintf(dbf_text,"aq:io%4x",result);
-		QDIO_DBF_TEXT2(1,setup,dbf_text);
-		if (result2) {
-			sprintf(dbf_text,"aq:io%4x",result);
-			QDIO_DBF_TEXT2(1,setup,dbf_text);
-		}
-		QDIO_PRINT_WARN("activate queues on irq 0.%x.%04x: do_IO " \
-				"returned %i, next try returned %i\n",
-				irq_ptr->schid.ssid, irq_ptr->schid.sch_no,
-				result, result2);
-		result=result2;
-	}
-
-	spin_unlock_irqrestore(get_ccwdev_lock(cdev),saveflags);
-	if (result)
-		goto out;
-
-	for (i=0;i<irq_ptr->no_input_qs;i++) {
-		if (irq_ptr->is_thinint_irq) {
-			/* 
-			 * that way we know, that, if we will get interrupted
-			 * by tiqdio_inbound_processing, qdio_unmark_q will
-			 * not be called 
-			 */
-			qdio_reserve_q(irq_ptr->input_qs[i]);
-			qdio_mark_tiq(irq_ptr->input_qs[i]);
-			qdio_release_q(irq_ptr->input_qs[i]);
-		}
-	}
-
-	if (flags&QDIO_FLAG_NO_INPUT_INTERRUPT_CONTEXT) {
-		for (i=0;i<irq_ptr->no_input_qs;i++) {
-			irq_ptr->input_qs[i]->is_input_q|=
-				QDIO_FLAG_NO_INPUT_INTERRUPT_CONTEXT;
-		}
-	}
-
-	msleep(QDIO_ACTIVATE_TIMEOUT);
-	switch (irq_ptr->state) {
-	case QDIO_IRQ_STATE_STOPPED:
-	case QDIO_IRQ_STATE_ERR:
-		up(&irq_ptr->setting_up_sema);
-		qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR);
-		down(&irq_ptr->setting_up_sema);
-		result = -EIO;
-		break;
-	default:
-		qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ACTIVE);
-		result = 0;
-	}
- out:
-	up(&irq_ptr->setting_up_sema);
-
-	return result;
-}
-
-/* buffers filled forwards again to make Rick happy */
-static void
-qdio_do_qdio_fill_input(struct qdio_q *q, unsigned int qidx,
-			unsigned int count, struct qdio_buffer *buffers)
-{
-	struct qdio_irq *irq = (struct qdio_irq *) q->irq_ptr;
-	int tmp = 0;
-
-	qidx &= (QDIO_MAX_BUFFERS_PER_Q - 1);
-	if (irq->is_qebsm) {
-		while (count) {
-			tmp = set_slsb(q, &qidx, SLSB_CU_INPUT_EMPTY, &count);
-			if (!tmp)
-				return;
-		}
-		return;
-	}
-	for (;;) {
-		set_slsb(q, &qidx, SLSB_CU_INPUT_EMPTY, &count);
-		count--;
-		if (!count) break;
-		qidx = (qidx + 1) & (QDIO_MAX_BUFFERS_PER_Q - 1);
-	}
-}
-
-static void
-qdio_do_qdio_fill_output(struct qdio_q *q, unsigned int qidx,
-			 unsigned int count, struct qdio_buffer *buffers)
-{
-	struct qdio_irq *irq = (struct qdio_irq *) q->irq_ptr;
-	int tmp = 0;
-
-	qidx &= (QDIO_MAX_BUFFERS_PER_Q - 1);
-	if (irq->is_qebsm) {
-		while (count) {
-			tmp = set_slsb(q, &qidx, SLSB_CU_OUTPUT_PRIMED, &count);
-			if (!tmp)
-				return;
-		}
-		return;
-	}
-
-	for (;;) {
-		set_slsb(q, &qidx, SLSB_CU_OUTPUT_PRIMED, &count);
-		count--;
-		if (!count) break;
-		qidx = (qidx + 1) & (QDIO_MAX_BUFFERS_PER_Q - 1);
-	}
-}
-
-static void
-do_qdio_handle_inbound(struct qdio_q *q, unsigned int callflags,
-		       unsigned int qidx, unsigned int count,
-		       struct qdio_buffer *buffers)
-{
-	int used_elements;
-
-        /* This is the inbound handling of queues */
-	used_elements=atomic_add_return(count, &q->number_of_buffers_used) - count;
-	
-	qdio_do_qdio_fill_input(q,qidx,count,buffers);
-	
-	if ((used_elements+count==QDIO_MAX_BUFFERS_PER_Q)&&
-	    (callflags&QDIO_FLAG_UNDER_INTERRUPT))
-		atomic_xchg(&q->polling,0);
-	
-	if (used_elements) 
-		return;
-	if (callflags&QDIO_FLAG_DONT_SIGA)
-		return;
-	if (q->siga_in) {
-		int result;
-		
-		result=qdio_siga_input(q);
-		if (result) {
-			if (q->siga_error)
-				q->error_status_flags|=
-					QDIO_STATUS_MORE_THAN_ONE_SIGA_ERROR;
-			q->error_status_flags|=QDIO_STATUS_LOOK_FOR_ERROR;
-			q->siga_error=result;
-		}
-	}
-		
-	qdio_mark_q(q);
-}
-
-static void
-do_qdio_handle_outbound(struct qdio_q *q, unsigned int callflags,
-			unsigned int qidx, unsigned int count,
-			struct qdio_buffer *buffers)
-{
-	int used_elements;
-	unsigned int cnt, start_buf;
-	unsigned char state = 0;
-	struct qdio_irq *irq = (struct qdio_irq *) q->irq_ptr;
-
-	/* This is the outbound handling of queues */
-	qdio_do_qdio_fill_output(q,qidx,count,buffers);
-
-	used_elements=atomic_add_return(count, &q->number_of_buffers_used) - count;
-
-	if (callflags&QDIO_FLAG_DONT_SIGA) {
-		qdio_perf_stat_inc(&perf_stats.outbound_cnt);
-		return;
-	}
-	if (callflags & QDIO_FLAG_PCI_OUT)
-		q->is_pci_out = 1;
-	else
-		q->is_pci_out = 0;
-	if (q->is_iqdio_q) {
-		/* one siga for every sbal */
-		while (count--)
-			qdio_kick_outbound_q(q);
-			
-		__qdio_outbound_processing(q);
-	} else {
-		/* under VM, we do a SIGA sync unconditionally */
-		SYNC_MEMORY;
-		else {
-			/* 
-			 * w/o shadow queues (else branch of
-			 * SYNC_MEMORY :-/ ), we try to
-			 * fast-requeue buffers 
-			 */
-			if (irq->is_qebsm) {
-				cnt = 1;
-				start_buf = ((qidx+QDIO_MAX_BUFFERS_PER_Q-1) &
-					     (QDIO_MAX_BUFFERS_PER_Q-1));
-				qdio_do_eqbs(q, &state, &start_buf, &cnt);
-			} else
-				state = q->slsb.acc.val[(qidx+QDIO_MAX_BUFFERS_PER_Q-1)
-					&(QDIO_MAX_BUFFERS_PER_Q-1) ];
-			 if (state != SLSB_CU_OUTPUT_PRIMED) {
-				qdio_kick_outbound_q(q);
-			} else {
-				QDIO_DBF_TEXT3(0,trace, "fast-req");
-				qdio_perf_stat_inc(&perf_stats.fast_reqs);
-			}
-		}
-		/* 
-		 * only marking the q could take too long,
-		 * the upper layer module could do a lot of
-		 * traffic in that time 
-		 */
-		__qdio_outbound_processing(q);
-	}
-
-	qdio_perf_stat_inc(&perf_stats.outbound_cnt);
-}
-
-/* count must be 1 in iqdio */
-int
-do_QDIO(struct ccw_device *cdev,unsigned int callflags,
-	unsigned int queue_number, unsigned int qidx,
-	unsigned int count,struct qdio_buffer *buffers)
-{
-	struct qdio_irq *irq_ptr;
-#ifdef CONFIG_QDIO_DEBUG
-	char dbf_text[20];
-
-	sprintf(dbf_text,"doQD%04x",cdev->private->schid.sch_no);
- 	QDIO_DBF_TEXT3(0,trace,dbf_text);
-#endif /* CONFIG_QDIO_DEBUG */
-
-	if ( (qidx>QDIO_MAX_BUFFERS_PER_Q) ||
-	     (count>QDIO_MAX_BUFFERS_PER_Q) ||
-	     (queue_number>QDIO_MAX_QUEUES_PER_IRQ) )
-		return -EINVAL;
-
-	if (count==0)
-		return 0;
-
-	irq_ptr = cdev->private->qdio_data;
-	if (!irq_ptr)
-		return -ENODEV;
-
-#ifdef CONFIG_QDIO_DEBUG
-	if (callflags&QDIO_FLAG_SYNC_INPUT)
-		QDIO_DBF_HEX3(0,trace,&irq_ptr->input_qs[queue_number],
-			      sizeof(void*));
-	else
-		QDIO_DBF_HEX3(0,trace,&irq_ptr->output_qs[queue_number],
-			      sizeof(void*));
-	sprintf(dbf_text,"flag%04x",callflags);
-	QDIO_DBF_TEXT3(0,trace,dbf_text);
-	sprintf(dbf_text,"qi%02xct%02x",qidx,count);
-	QDIO_DBF_TEXT3(0,trace,dbf_text);
-#endif /* CONFIG_QDIO_DEBUG */
-
-	if (irq_ptr->state!=QDIO_IRQ_STATE_ACTIVE)
-		return -EBUSY;
-
-	if (callflags&QDIO_FLAG_SYNC_INPUT)
-		do_qdio_handle_inbound(irq_ptr->input_qs[queue_number],
-				       callflags, qidx, count, buffers);
-	else if (callflags&QDIO_FLAG_SYNC_OUTPUT)
-		do_qdio_handle_outbound(irq_ptr->output_qs[queue_number],
-					callflags, qidx, count, buffers);
-	else {
-		QDIO_DBF_TEXT3(1,trace,"doQD:inv");
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static int
-qdio_perf_procfile_read(char *buffer, char **buffer_location, off_t offset,
-			int buffer_length, int *eof, void *data)
-{
-        int c=0;
-
-        /* we are always called with buffer_length=4k, so we all
-           deliver on the first read */
-        if (offset>0)
-		return 0;
-
-#define _OUTP_IT(x...) c+=sprintf(buffer+c,x)
-#ifdef CONFIG_64BIT
-	_OUTP_IT("Number of tasklet runs (total)                  : %li\n",
-		 (long)atomic64_read(&perf_stats.tl_runs));
-	_OUTP_IT("Inbound tasklet runs      tried/retried         : %li/%li\n",
-		 (long)atomic64_read(&perf_stats.inbound_tl_runs),
-		 (long)atomic64_read(&perf_stats.inbound_tl_runs_resched));
-	_OUTP_IT("Inbound-thin tasklet runs tried/retried         : %li/%li\n",
-		 (long)atomic64_read(&perf_stats.inbound_thin_tl_runs),
-		 (long)atomic64_read(&perf_stats.inbound_thin_tl_runs_resched));
-	_OUTP_IT("Outbound tasklet runs     tried/retried         : %li/%li\n",
-		 (long)atomic64_read(&perf_stats.outbound_tl_runs),
-		 (long)atomic64_read(&perf_stats.outbound_tl_runs_resched));
-	_OUTP_IT("\n");
-	_OUTP_IT("Number of SIGA sync's issued                    : %li\n",
-		 (long)atomic64_read(&perf_stats.siga_syncs));
-	_OUTP_IT("Number of SIGA in's issued                      : %li\n",
-		 (long)atomic64_read(&perf_stats.siga_ins));
-	_OUTP_IT("Number of SIGA out's issued                     : %li\n",
-		 (long)atomic64_read(&perf_stats.siga_outs));
-	_OUTP_IT("Number of PCIs caught                           : %li\n",
-		 (long)atomic64_read(&perf_stats.pcis));
-	_OUTP_IT("Number of adapter interrupts caught             : %li\n",
-		 (long)atomic64_read(&perf_stats.thinints));
-	_OUTP_IT("Number of fast requeues (outg. SBALs w/o SIGA)  : %li\n",
-		 (long)atomic64_read(&perf_stats.fast_reqs));
-	_OUTP_IT("\n");
-	_OUTP_IT("Number of inbound transfers                     : %li\n",
-		 (long)atomic64_read(&perf_stats.inbound_cnt));
-	_OUTP_IT("Number of do_QDIOs outbound                     : %li\n",
-		 (long)atomic64_read(&perf_stats.outbound_cnt));
-#else /* CONFIG_64BIT */
-	_OUTP_IT("Number of tasklet runs (total)                  : %i\n",
-		 atomic_read(&perf_stats.tl_runs));
-	_OUTP_IT("Inbound tasklet runs      tried/retried         : %i/%i\n",
-		 atomic_read(&perf_stats.inbound_tl_runs),
-		 atomic_read(&perf_stats.inbound_tl_runs_resched));
-	_OUTP_IT("Inbound-thin tasklet runs tried/retried         : %i/%i\n",
-		 atomic_read(&perf_stats.inbound_thin_tl_runs),
-		 atomic_read(&perf_stats.inbound_thin_tl_runs_resched));
-	_OUTP_IT("Outbound tasklet runs     tried/retried         : %i/%i\n",
-		 atomic_read(&perf_stats.outbound_tl_runs),
-		 atomic_read(&perf_stats.outbound_tl_runs_resched));
-	_OUTP_IT("\n");
-	_OUTP_IT("Number of SIGA sync's issued                    : %i\n",
-		 atomic_read(&perf_stats.siga_syncs));
-	_OUTP_IT("Number of SIGA in's issued                      : %i\n",
-		 atomic_read(&perf_stats.siga_ins));
-	_OUTP_IT("Number of SIGA out's issued                     : %i\n",
-		 atomic_read(&perf_stats.siga_outs));
-	_OUTP_IT("Number of PCIs caught                           : %i\n",
-		 atomic_read(&perf_stats.pcis));
-	_OUTP_IT("Number of adapter interrupts caught             : %i\n",
-		 atomic_read(&perf_stats.thinints));
-	_OUTP_IT("Number of fast requeues (outg. SBALs w/o SIGA)  : %i\n",
-		 atomic_read(&perf_stats.fast_reqs));
-	_OUTP_IT("\n");
-	_OUTP_IT("Number of inbound transfers                     : %i\n",
-		 atomic_read(&perf_stats.inbound_cnt));
-	_OUTP_IT("Number of do_QDIOs outbound                     : %i\n",
-		 atomic_read(&perf_stats.outbound_cnt));
-#endif /* CONFIG_64BIT */
-	_OUTP_IT("\n");
-
-        return c;
-}
-
-static struct proc_dir_entry *qdio_perf_proc_file;
-
-static void
-qdio_add_procfs_entry(void)
-{
-        proc_perf_file_registration=0;
-	qdio_perf_proc_file=create_proc_entry(QDIO_PERF,
-					      S_IFREG|0444,NULL);
-	if (qdio_perf_proc_file) {
-		qdio_perf_proc_file->read_proc=&qdio_perf_procfile_read;
-	} else proc_perf_file_registration=-1;
-
-        if (proc_perf_file_registration)
-                QDIO_PRINT_WARN("was not able to register perf. " \
-				"proc-file (%i).\n",
-				proc_perf_file_registration);
-}
-
-static void
-qdio_remove_procfs_entry(void)
-{
-        if (!proc_perf_file_registration) /* means if it went ok earlier */
-		remove_proc_entry(QDIO_PERF,NULL);
-}
-
-/**
- * attributes in sysfs
- *****************************************************************************/
-
-static ssize_t
-qdio_performance_stats_show(struct bus_type *bus, char *buf)
-{
-	return sprintf(buf, "%i\n", qdio_performance_stats ? 1 : 0);
-}
-
-static ssize_t
-qdio_performance_stats_store(struct bus_type *bus, const char *buf, size_t count)
-{
-	unsigned long i;
-	int ret;
-
-	ret = strict_strtoul(buf, 16, &i);
-	if (!ret && ((i == 0) || (i == 1))) {
-		if (i == qdio_performance_stats)
-			return count;
-		qdio_performance_stats = i;
-		if (i==0) {
-			/* reset perf. stat. info */
-#ifdef CONFIG_64BIT
-			atomic64_set(&perf_stats.tl_runs, 0);
-			atomic64_set(&perf_stats.outbound_tl_runs, 0);
-			atomic64_set(&perf_stats.inbound_tl_runs, 0);
-			atomic64_set(&perf_stats.inbound_tl_runs_resched, 0);
-			atomic64_set(&perf_stats.inbound_thin_tl_runs, 0);
-			atomic64_set(&perf_stats.inbound_thin_tl_runs_resched,
-				     0);
-			atomic64_set(&perf_stats.siga_outs, 0);
-			atomic64_set(&perf_stats.siga_ins, 0);
-			atomic64_set(&perf_stats.siga_syncs, 0);
-			atomic64_set(&perf_stats.pcis, 0);
-			atomic64_set(&perf_stats.thinints, 0);
-			atomic64_set(&perf_stats.fast_reqs, 0);
-			atomic64_set(&perf_stats.outbound_cnt, 0);
-			atomic64_set(&perf_stats.inbound_cnt, 0);
-#else /* CONFIG_64BIT */
-			atomic_set(&perf_stats.tl_runs, 0);
-			atomic_set(&perf_stats.outbound_tl_runs, 0);
-			atomic_set(&perf_stats.inbound_tl_runs, 0);
-			atomic_set(&perf_stats.inbound_tl_runs_resched, 0);
-			atomic_set(&perf_stats.inbound_thin_tl_runs, 0);
-			atomic_set(&perf_stats.inbound_thin_tl_runs_resched, 0);
-			atomic_set(&perf_stats.siga_outs, 0);
-			atomic_set(&perf_stats.siga_ins, 0);
-			atomic_set(&perf_stats.siga_syncs, 0);
-			atomic_set(&perf_stats.pcis, 0);
-			atomic_set(&perf_stats.thinints, 0);
-			atomic_set(&perf_stats.fast_reqs, 0);
-			atomic_set(&perf_stats.outbound_cnt, 0);
-			atomic_set(&perf_stats.inbound_cnt, 0);
-#endif /* CONFIG_64BIT */
-		}
-	} else {
-		QDIO_PRINT_ERR("QDIO performance_stats: write 0 or 1 to this file!\n");
-		return -EINVAL;
-	}
-	return count;
-}
-
-static BUS_ATTR(qdio_performance_stats, 0644, qdio_performance_stats_show,
-			qdio_performance_stats_store);
-
-static void
-tiqdio_register_thinints(void)
-{
-	char dbf_text[20];
-
-	tiqdio_ind =
-		s390_register_adapter_interrupt(&tiqdio_thinint_handler, NULL,
-						TIQDIO_THININT_ISC);
-	if (IS_ERR(tiqdio_ind)) {
-		sprintf(dbf_text, "regthn%lx", PTR_ERR(tiqdio_ind));
-		QDIO_DBF_TEXT0(0,setup,dbf_text);
-		QDIO_PRINT_ERR("failed to register adapter handler " \
-			       "(rc=%li).\nAdapter interrupts might " \
-			       "not work. Continuing.\n",
-			       PTR_ERR(tiqdio_ind));
-		tiqdio_ind = NULL;
-	}
-}
-
-static void
-tiqdio_unregister_thinints(void)
-{
-	if (tiqdio_ind)
-		s390_unregister_adapter_interrupt(tiqdio_ind,
-						  TIQDIO_THININT_ISC);
-}
-
-static int
-qdio_get_qdio_memory(void)
-{
-	int i;
-	indicator_used[0]=1;
-
-	for (i=1;i<INDICATORS_PER_CACHELINE;i++)
-		indicator_used[i]=0;
-	indicators = kzalloc(sizeof(__u32)*(INDICATORS_PER_CACHELINE),
-			     GFP_KERNEL);
-	if (!indicators)
-		return -ENOMEM;
-	return 0;
-}
-
-static void
-qdio_release_qdio_memory(void)
-{
-	kfree(indicators);
-}
-
-static void
-qdio_unregister_dbf_views(void)
-{
-	if (qdio_dbf_setup)
-		debug_unregister(qdio_dbf_setup);
-	if (qdio_dbf_sbal)
-		debug_unregister(qdio_dbf_sbal);
-	if (qdio_dbf_sense)
-		debug_unregister(qdio_dbf_sense);
-	if (qdio_dbf_trace)
-		debug_unregister(qdio_dbf_trace);
-#ifdef CONFIG_QDIO_DEBUG
-        if (qdio_dbf_slsb_out)
-                debug_unregister(qdio_dbf_slsb_out);
-        if (qdio_dbf_slsb_in)
-                debug_unregister(qdio_dbf_slsb_in);
-#endif /* CONFIG_QDIO_DEBUG */
-}
-
-static int
-qdio_register_dbf_views(void)
-{
-	qdio_dbf_setup=debug_register(QDIO_DBF_SETUP_NAME,
-				      QDIO_DBF_SETUP_PAGES,
-				      QDIO_DBF_SETUP_NR_AREAS,
-				      QDIO_DBF_SETUP_LEN);
-	if (!qdio_dbf_setup)
-		goto oom;
-	debug_register_view(qdio_dbf_setup,&debug_hex_ascii_view);
-	debug_set_level(qdio_dbf_setup,QDIO_DBF_SETUP_LEVEL);
-
-	qdio_dbf_sbal=debug_register(QDIO_DBF_SBAL_NAME,
-				     QDIO_DBF_SBAL_PAGES,
-				     QDIO_DBF_SBAL_NR_AREAS,
-				     QDIO_DBF_SBAL_LEN);
-	if (!qdio_dbf_sbal)
-		goto oom;
-
-	debug_register_view(qdio_dbf_sbal,&debug_hex_ascii_view);
-	debug_set_level(qdio_dbf_sbal,QDIO_DBF_SBAL_LEVEL);
-
-	qdio_dbf_sense=debug_register(QDIO_DBF_SENSE_NAME,
-				      QDIO_DBF_SENSE_PAGES,
-				      QDIO_DBF_SENSE_NR_AREAS,
-				      QDIO_DBF_SENSE_LEN);
-	if (!qdio_dbf_sense)
-		goto oom;
-
-	debug_register_view(qdio_dbf_sense,&debug_hex_ascii_view);
-	debug_set_level(qdio_dbf_sense,QDIO_DBF_SENSE_LEVEL);
-
-	qdio_dbf_trace=debug_register(QDIO_DBF_TRACE_NAME,
-				      QDIO_DBF_TRACE_PAGES,
-				      QDIO_DBF_TRACE_NR_AREAS,
-				      QDIO_DBF_TRACE_LEN);
-	if (!qdio_dbf_trace)
-		goto oom;
-
-	debug_register_view(qdio_dbf_trace,&debug_hex_ascii_view);
-	debug_set_level(qdio_dbf_trace,QDIO_DBF_TRACE_LEVEL);
-
-#ifdef CONFIG_QDIO_DEBUG
-        qdio_dbf_slsb_out=debug_register(QDIO_DBF_SLSB_OUT_NAME,
-                                         QDIO_DBF_SLSB_OUT_PAGES,
-                                         QDIO_DBF_SLSB_OUT_NR_AREAS,
-                                         QDIO_DBF_SLSB_OUT_LEN);
-        if (!qdio_dbf_slsb_out)
-		goto oom;
-        debug_register_view(qdio_dbf_slsb_out,&debug_hex_ascii_view);
-        debug_set_level(qdio_dbf_slsb_out,QDIO_DBF_SLSB_OUT_LEVEL);
-
-        qdio_dbf_slsb_in=debug_register(QDIO_DBF_SLSB_IN_NAME,
-                                        QDIO_DBF_SLSB_IN_PAGES,
-                                        QDIO_DBF_SLSB_IN_NR_AREAS,
-                                        QDIO_DBF_SLSB_IN_LEN);
-        if (!qdio_dbf_slsb_in)
-		goto oom;
-        debug_register_view(qdio_dbf_slsb_in,&debug_hex_ascii_view);
-        debug_set_level(qdio_dbf_slsb_in,QDIO_DBF_SLSB_IN_LEVEL);
-#endif /* CONFIG_QDIO_DEBUG */
-	return 0;
-oom:
-	QDIO_PRINT_ERR("not enough memory for dbf.\n");
-	qdio_unregister_dbf_views();
-	return -ENOMEM;
-}
-
-static void *qdio_mempool_alloc(gfp_t gfp_mask, void *size)
-{
-	return (void *) get_zeroed_page(gfp_mask|GFP_DMA);
-}
-
-static void qdio_mempool_free(void *element, void *size)
-{
-	free_page((unsigned long) element);
-}
-
-static int __init
-init_QDIO(void)
-{
-	int res;
-	void *ptr;
-
-	printk("qdio: loading %s\n",version);
-
-	res=qdio_get_qdio_memory();
-	if (res)
-		return res;
-
-	qdio_q_cache = kmem_cache_create("qdio_q", sizeof(struct qdio_q),
-					 256, 0, NULL);
-	if (!qdio_q_cache) {
-		qdio_release_qdio_memory();
-		return -ENOMEM;
-	}
-
-	res = qdio_register_dbf_views();
-	if (res) {
-		kmem_cache_destroy(qdio_q_cache);
-		qdio_release_qdio_memory();
-		return res;
-	}
-
-	QDIO_DBF_TEXT0(0,setup,"initQDIO");
-	res = bus_create_file(&ccw_bus_type, &bus_attr_qdio_performance_stats);
-
-	memset((void*)&perf_stats,0,sizeof(perf_stats));
-	QDIO_DBF_TEXT0(0,setup,"perfstat");
-	ptr=&perf_stats;
-	QDIO_DBF_HEX0(0,setup,&ptr,sizeof(void*));
-
-	qdio_add_procfs_entry();
-
-	qdio_mempool_scssc = mempool_create(QDIO_MEMPOOL_SCSSC_ELEMENTS,
-					    qdio_mempool_alloc,
-					    qdio_mempool_free, NULL);
-
-	isc_register(QDIO_AIRQ_ISC);
-	if (tiqdio_check_chsc_availability())
-		QDIO_PRINT_ERR("Not all CHSCs supported. Continuing.\n");
-
-	tiqdio_register_thinints();
-
-	return 0;
- }
-
-static void __exit
-cleanup_QDIO(void)
-{
-	tiqdio_unregister_thinints();
-	isc_unregister(QDIO_AIRQ_ISC);
-	qdio_remove_procfs_entry();
-	qdio_release_qdio_memory();
-	qdio_unregister_dbf_views();
-	mempool_destroy(qdio_mempool_scssc);
-	kmem_cache_destroy(qdio_q_cache);
-	bus_remove_file(&ccw_bus_type, &bus_attr_qdio_performance_stats);
-  	printk("qdio: %s: module removed\n",version);
-}
-
-module_init(init_QDIO);
-module_exit(cleanup_QDIO);
-
-EXPORT_SYMBOL(qdio_allocate);
-EXPORT_SYMBOL(qdio_establish);
-EXPORT_SYMBOL(qdio_initialize);
-EXPORT_SYMBOL(qdio_activate);
-EXPORT_SYMBOL(do_QDIO);
-EXPORT_SYMBOL(qdio_shutdown);
-EXPORT_SYMBOL(qdio_free);
-EXPORT_SYMBOL(qdio_cleanup);
-EXPORT_SYMBOL(qdio_synchronize);
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index 7656081..c1a7098 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -1,66 +1,20 @@
+/*
+ * linux/drivers/s390/cio/qdio.h
+ *
+ * Copyright 2000,2008 IBM Corp.
+ * Author(s): Utz Bacher <utz.bacher@de.ibm.com>
+ *	      Jan Glauber <jang@linux.vnet.ibm.com>
+ */
 #ifndef _CIO_QDIO_H
 #define _CIO_QDIO_H
 
 #include <asm/page.h>
-#include <asm/isc.h>
 #include <asm/schid.h>
+#include "chsc.h"
 
-#ifdef CONFIG_QDIO_DEBUG
-#define QDIO_VERBOSE_LEVEL 9
-#else /* CONFIG_QDIO_DEBUG */
-#define QDIO_VERBOSE_LEVEL 5
-#endif /* CONFIG_QDIO_DEBUG */
-#define QDIO_USE_PROCESSING_STATE
-
-#define QDIO_MINIMAL_BH_RELIEF_TIME 16
-#define QDIO_TIMER_POLL_VALUE 1
-#define IQDIO_TIMER_POLL_VALUE 1
-
-/*
- * unfortunately this can't be (QDIO_MAX_BUFFERS_PER_Q*4/3) or so -- as
- * we never know, whether we'll get initiative again, e.g. to give the
- * transmit skb's back to the stack, however the stack may be waiting for
- * them... therefore we define 4 as threshold to start polling (which
- * will stop as soon as the asynchronous queue catches up)
- * btw, this only applies to the asynchronous HiperSockets queue
- */
-#define IQDIO_FILL_LEVEL_TO_POLL 4
-
-#define TIQDIO_THININT_ISC QDIO_AIRQ_ISC
-#define TIQDIO_DELAY_TARGET 0
-#define QDIO_BUSY_BIT_PATIENCE 100 /* in microsecs */
-#define QDIO_BUSY_BIT_GIVE_UP 10000000 /* 10 seconds */
-#define IQDIO_GLOBAL_LAPS 2 /* GLOBAL_LAPS are not used as we */
-#define IQDIO_GLOBAL_LAPS_INT 1 /* don't global summary */
-#define IQDIO_LOCAL_LAPS 4
-#define IQDIO_LOCAL_LAPS_INT 1
-#define IQDIO_GLOBAL_SUMMARY_CC_MASK 2
-/*#define IQDIO_IQDC_INT_PARM 0x1234*/
-
-#define QDIO_Q_LAPS 5
-
-#define QDIO_STORAGE_KEY PAGE_DEFAULT_KEY
-
-#define L2_CACHELINE_SIZE 256
-#define INDICATORS_PER_CACHELINE (L2_CACHELINE_SIZE/sizeof(__u32))
-
-#define QDIO_PERF "qdio_perf"
-
-/* must be a power of 2 */
-/*#define QDIO_STATS_NUMBER 4
-
-#define QDIO_STATS_CLASSES 2
-#define QDIO_STATS_COUNT_NEEDED 2*/
-
-#define QDIO_NO_USE_COUNT_TIMEOUT (1*HZ) /* wait for 1 sec on each q before
-					    exiting without having use_count
-					    of the queue to 0 */
-
-#define QDIO_ESTABLISH_TIMEOUT (1*HZ)
-#define QDIO_CLEANUP_CLEAR_TIMEOUT (20*HZ)
-#define QDIO_CLEANUP_HALT_TIMEOUT (10*HZ)
-#define QDIO_FORCE_CHECK_TIMEOUT (10*HZ)
-#define QDIO_ACTIVATE_TIMEOUT (5) /* 5 ms */
+#define QDIO_BUSY_BIT_PATIENCE		100	/* 100 microseconds */
+#define QDIO_BUSY_BIT_GIVE_UP		2000000	/* 2 seconds = eternity */
+#define QDIO_INPUT_THRESHOLD		500	/* 500 microseconds */
 
 enum qdio_irq_states {
 	QDIO_IRQ_STATE_INACTIVE,
@@ -72,565 +26,352 @@ enum qdio_irq_states {
 	NR_QDIO_IRQ_STATES,
 };
 
-/* used as intparm in do_IO: */
-#define QDIO_DOING_SENSEID 0
-#define QDIO_DOING_ESTABLISH 1
-#define QDIO_DOING_ACTIVATE 2
-#define QDIO_DOING_CLEANUP 3
-
-/************************* DEBUG FACILITY STUFF *********************/
-
-#define QDIO_DBF_HEX(ex,name,level,addr,len) \
-	do { \
-	if (ex) \
-		debug_exception(qdio_dbf_##name,level,(void*)(addr),len); \
-	else \
-		debug_event(qdio_dbf_##name,level,(void*)(addr),len); \
-	} while (0)
-#define QDIO_DBF_TEXT(ex,name,level,text) \
-	do { \
-	if (ex) \
-		debug_text_exception(qdio_dbf_##name,level,text); \
-	else \
-		debug_text_event(qdio_dbf_##name,level,text); \
-	} while (0)
-
-
-#define QDIO_DBF_HEX0(ex,name,addr,len) QDIO_DBF_HEX(ex,name,0,addr,len)
-#define QDIO_DBF_HEX1(ex,name,addr,len) QDIO_DBF_HEX(ex,name,1,addr,len)
-#define QDIO_DBF_HEX2(ex,name,addr,len) QDIO_DBF_HEX(ex,name,2,addr,len)
-#ifdef CONFIG_QDIO_DEBUG
-#define QDIO_DBF_HEX3(ex,name,addr,len) QDIO_DBF_HEX(ex,name,3,addr,len)
-#define QDIO_DBF_HEX4(ex,name,addr,len) QDIO_DBF_HEX(ex,name,4,addr,len)
-#define QDIO_DBF_HEX5(ex,name,addr,len) QDIO_DBF_HEX(ex,name,5,addr,len)
-#define QDIO_DBF_HEX6(ex,name,addr,len) QDIO_DBF_HEX(ex,name,6,addr,len)
-#else /* CONFIG_QDIO_DEBUG */
-#define QDIO_DBF_HEX3(ex,name,addr,len) do {} while (0)
-#define QDIO_DBF_HEX4(ex,name,addr,len) do {} while (0)
-#define QDIO_DBF_HEX5(ex,name,addr,len) do {} while (0)
-#define QDIO_DBF_HEX6(ex,name,addr,len) do {} while (0)
-#endif /* CONFIG_QDIO_DEBUG */
-
-#define QDIO_DBF_TEXT0(ex,name,text) QDIO_DBF_TEXT(ex,name,0,text)
-#define QDIO_DBF_TEXT1(ex,name,text) QDIO_DBF_TEXT(ex,name,1,text)
-#define QDIO_DBF_TEXT2(ex,name,text) QDIO_DBF_TEXT(ex,name,2,text)
-#ifdef CONFIG_QDIO_DEBUG
-#define QDIO_DBF_TEXT3(ex,name,text) QDIO_DBF_TEXT(ex,name,3,text)
-#define QDIO_DBF_TEXT4(ex,name,text) QDIO_DBF_TEXT(ex,name,4,text)
-#define QDIO_DBF_TEXT5(ex,name,text) QDIO_DBF_TEXT(ex,name,5,text)
-#define QDIO_DBF_TEXT6(ex,name,text) QDIO_DBF_TEXT(ex,name,6,text)
-#else /* CONFIG_QDIO_DEBUG */
-#define QDIO_DBF_TEXT3(ex,name,text) do {} while (0)
-#define QDIO_DBF_TEXT4(ex,name,text) do {} while (0)
-#define QDIO_DBF_TEXT5(ex,name,text) do {} while (0)
-#define QDIO_DBF_TEXT6(ex,name,text) do {} while (0)
-#endif /* CONFIG_QDIO_DEBUG */
-
-#define QDIO_DBF_SETUP_NAME "qdio_setup"
-#define QDIO_DBF_SETUP_LEN 8
-#define QDIO_DBF_SETUP_PAGES 4
-#define QDIO_DBF_SETUP_NR_AREAS 1
-#ifdef CONFIG_QDIO_DEBUG
-#define QDIO_DBF_SETUP_LEVEL 6
-#else /* CONFIG_QDIO_DEBUG */
-#define QDIO_DBF_SETUP_LEVEL 2
-#endif /* CONFIG_QDIO_DEBUG */
-
-#define QDIO_DBF_SBAL_NAME "qdio_labs" /* sbal */
-#define QDIO_DBF_SBAL_LEN 256
-#define QDIO_DBF_SBAL_PAGES 4
-#define QDIO_DBF_SBAL_NR_AREAS 2
-#ifdef CONFIG_QDIO_DEBUG
-#define QDIO_DBF_SBAL_LEVEL 6
-#else /* CONFIG_QDIO_DEBUG */
-#define QDIO_DBF_SBAL_LEVEL 2
-#endif /* CONFIG_QDIO_DEBUG */
-
-#define QDIO_DBF_TRACE_NAME "qdio_trace"
-#define QDIO_DBF_TRACE_LEN 8
-#define QDIO_DBF_TRACE_NR_AREAS 2
-#ifdef CONFIG_QDIO_DEBUG
-#define QDIO_DBF_TRACE_PAGES 16
-#define QDIO_DBF_TRACE_LEVEL 4 /* -------- could be even more verbose here */
-#else /* CONFIG_QDIO_DEBUG */
-#define QDIO_DBF_TRACE_PAGES 4
-#define QDIO_DBF_TRACE_LEVEL 2
-#endif /* CONFIG_QDIO_DEBUG */
-
-#define QDIO_DBF_SENSE_NAME "qdio_sense"
-#define QDIO_DBF_SENSE_LEN 64
-#define QDIO_DBF_SENSE_PAGES 2
-#define QDIO_DBF_SENSE_NR_AREAS 1
-#ifdef CONFIG_QDIO_DEBUG
-#define QDIO_DBF_SENSE_LEVEL 6
-#else /* CONFIG_QDIO_DEBUG */
-#define QDIO_DBF_SENSE_LEVEL 2
-#endif /* CONFIG_QDIO_DEBUG */
-
-#ifdef CONFIG_QDIO_DEBUG
-#define QDIO_TRACE_QTYPE QDIO_ZFCP_QFMT
-
-#define QDIO_DBF_SLSB_OUT_NAME "qdio_slsb_out"
-#define QDIO_DBF_SLSB_OUT_LEN QDIO_MAX_BUFFERS_PER_Q
-#define QDIO_DBF_SLSB_OUT_PAGES 256
-#define QDIO_DBF_SLSB_OUT_NR_AREAS 1
-#define QDIO_DBF_SLSB_OUT_LEVEL 6
-
-#define QDIO_DBF_SLSB_IN_NAME "qdio_slsb_in"
-#define QDIO_DBF_SLSB_IN_LEN QDIO_MAX_BUFFERS_PER_Q
-#define QDIO_DBF_SLSB_IN_PAGES 256
-#define QDIO_DBF_SLSB_IN_NR_AREAS 1
-#define QDIO_DBF_SLSB_IN_LEVEL 6
-#endif /* CONFIG_QDIO_DEBUG */
-
-#define QDIO_PRINTK_HEADER QDIO_NAME ": "
-
-#if QDIO_VERBOSE_LEVEL>8
-#define QDIO_PRINT_STUPID(x...) printk( KERN_DEBUG QDIO_PRINTK_HEADER x)
-#else
-#define QDIO_PRINT_STUPID(x...) do { } while (0)
-#endif
+/* used as intparm in do_IO */
+#define QDIO_DOING_ESTABLISH	1
+#define QDIO_DOING_ACTIVATE	2
+#define QDIO_DOING_CLEANUP	3
+
+#define SLSB_STATE_NOT_INIT	0x0
+#define SLSB_STATE_EMPTY	0x1
+#define SLSB_STATE_PRIMED	0x2
+#define SLSB_STATE_HALTED	0xe
+#define SLSB_STATE_ERROR	0xf
+#define SLSB_TYPE_INPUT		0x0
+#define SLSB_TYPE_OUTPUT	0x20
+#define SLSB_OWNER_PROG		0x80
+#define SLSB_OWNER_CU		0x40
+
+#define SLSB_P_INPUT_NOT_INIT	\
+	(SLSB_OWNER_PROG | SLSB_TYPE_INPUT | SLSB_STATE_NOT_INIT)  /* 0x80 */
+#define SLSB_P_INPUT_ACK	\
+	(SLSB_OWNER_PROG | SLSB_TYPE_INPUT | SLSB_STATE_EMPTY)	   /* 0x81 */
+#define SLSB_CU_INPUT_EMPTY	\
+	(SLSB_OWNER_CU | SLSB_TYPE_INPUT | SLSB_STATE_EMPTY)	   /* 0x41 */
+#define SLSB_P_INPUT_PRIMED	\
+	(SLSB_OWNER_PROG | SLSB_TYPE_INPUT | SLSB_STATE_PRIMED)	   /* 0x82 */
+#define SLSB_P_INPUT_HALTED	\
+	(SLSB_OWNER_PROG | SLSB_TYPE_INPUT | SLSB_STATE_HALTED)	   /* 0x8e */
+#define SLSB_P_INPUT_ERROR	\
+	(SLSB_OWNER_PROG | SLSB_TYPE_INPUT | SLSB_STATE_ERROR)	   /* 0x8f */
+#define SLSB_P_OUTPUT_NOT_INIT	\
+	(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_CU_OUTPUT_PRIMED	\
+	(SLSB_OWNER_CU | SLSB_TYPE_OUTPUT | SLSB_STATE_PRIMED)	   /* 0x62 */
+#define SLSB_P_OUTPUT_HALTED	\
+	(SLSB_OWNER_PROG | SLSB_TYPE_OUTPUT | SLSB_STATE_HALTED)   /* 0xae */
+#define SLSB_P_OUTPUT_ERROR	\
+	(SLSB_OWNER_PROG | SLSB_TYPE_OUTPUT | SLSB_STATE_ERROR)	   /* 0xaf */
+
+#define SLSB_ERROR_DURING_LOOKUP  0xff
+
+/* additional CIWs returned by extended Sense-ID */
+#define CIW_TYPE_EQUEUE			0x3 /* establish QDIO queues */
+#define CIW_TYPE_AQUEUE			0x4 /* activate QDIO queues */
 
-#if QDIO_VERBOSE_LEVEL>7
-#define QDIO_PRINT_ALL(x...) printk( QDIO_PRINTK_HEADER x)
-#else
-#define QDIO_PRINT_ALL(x...) do { } while (0)
-#endif
-
-#if QDIO_VERBOSE_LEVEL>6
-#define QDIO_PRINT_INFO(x...) printk( QDIO_PRINTK_HEADER x)
-#else
-#define QDIO_PRINT_INFO(x...) do { } while (0)
-#endif
-
-#if QDIO_VERBOSE_LEVEL>5
-#define QDIO_PRINT_WARN(x...) printk( QDIO_PRINTK_HEADER x)
-#else
-#define QDIO_PRINT_WARN(x...) do { } while (0)
-#endif
-
-#if QDIO_VERBOSE_LEVEL>4
-#define QDIO_PRINT_ERR(x...) printk( QDIO_PRINTK_HEADER x)
-#else
-#define QDIO_PRINT_ERR(x...) do { } while (0)
-#endif
-
-#if QDIO_VERBOSE_LEVEL>3
-#define QDIO_PRINT_CRIT(x...) printk( QDIO_PRINTK_HEADER x)
-#else
-#define QDIO_PRINT_CRIT(x...) do { } while (0)
-#endif
-
-#if QDIO_VERBOSE_LEVEL>2
-#define QDIO_PRINT_ALERT(x...) printk( QDIO_PRINTK_HEADER x)
-#else
-#define QDIO_PRINT_ALERT(x...) do { } while (0)
-#endif
+/* flags for st qdio sch data */
+#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 */
 
-#if QDIO_VERBOSE_LEVEL>1
-#define QDIO_PRINT_EMERG(x...) printk( QDIO_PRINTK_HEADER x)
-#else
-#define QDIO_PRINT_EMERG(x...) do { } while (0)
-#endif
-
-#define QDIO_HEXDUMP16(importance,header,ptr) \
-QDIO_PRINT_##importance(header "%02x %02x %02x %02x  " \
-			"%02x %02x %02x %02x  %02x %02x %02x %02x  " \
-			"%02x %02x %02x %02x\n",*(((char*)ptr)), \
-			*(((char*)ptr)+1),*(((char*)ptr)+2), \
-			*(((char*)ptr)+3),*(((char*)ptr)+4), \
-			*(((char*)ptr)+5),*(((char*)ptr)+6), \
-			*(((char*)ptr)+7),*(((char*)ptr)+8), \
-			*(((char*)ptr)+9),*(((char*)ptr)+10), \
-			*(((char*)ptr)+11),*(((char*)ptr)+12), \
-			*(((char*)ptr)+13),*(((char*)ptr)+14), \
-			*(((char*)ptr)+15)); \
-QDIO_PRINT_##importance(header "%02x %02x %02x %02x  %02x %02x %02x %02x  " \
-			"%02x %02x %02x %02x  %02x %02x %02x %02x\n", \
-			*(((char*)ptr)+16),*(((char*)ptr)+17), \
-			*(((char*)ptr)+18),*(((char*)ptr)+19), \
-			*(((char*)ptr)+20),*(((char*)ptr)+21), \
-			*(((char*)ptr)+22),*(((char*)ptr)+23), \
-			*(((char*)ptr)+24),*(((char*)ptr)+25), \
-			*(((char*)ptr)+26),*(((char*)ptr)+27), \
-			*(((char*)ptr)+28),*(((char*)ptr)+29), \
-			*(((char*)ptr)+30),*(((char*)ptr)+31));
-
-/****************** END OF DEBUG FACILITY STUFF *********************/
+#ifdef CONFIG_64BIT
+static inline int do_sqbs(u64 token, unsigned char state, int queue,
+			  int *start, int *count)
+{
+	register unsigned long _ccq asm ("0") = *count;
+	register unsigned long _token asm ("1") = token;
+	unsigned long _queuestart = ((unsigned long)queue << 32) | *start;
 
-/*
- * Some instructions as assembly
- */
+	asm volatile(
+		"	.insn	rsy,0xeb000000008A,%1,0,0(%2)"
+		: "+d" (_ccq), "+d" (_queuestart)
+		: "d" ((unsigned long)state), "d" (_token)
+		: "memory", "cc");
+	*count = _ccq & 0xff;
+	*start = _queuestart & 0xff;
 
-static inline int
-do_sqbs(unsigned long sch, unsigned char state, int queue,
-       unsigned int *start, unsigned int *count)
-{
-#ifdef CONFIG_64BIT
-       register unsigned long _ccq asm ("0") = *count;
-       register unsigned long _sch asm ("1") = sch;
-       unsigned long _queuestart = ((unsigned long)queue << 32) | *start;
-
-       asm volatile(
-	       "	.insn	rsy,0xeb000000008A,%1,0,0(%2)"
-	       : "+d" (_ccq), "+d" (_queuestart)
-	       : "d" ((unsigned long)state), "d" (_sch)
-	       : "memory", "cc");
-       *count = _ccq & 0xff;
-       *start = _queuestart & 0xff;
-
-       return (_ccq >> 32) & 0xff;
-#else
-       return 0;
-#endif
+	return (_ccq >> 32) & 0xff;
 }
 
-static inline int
-do_eqbs(unsigned long sch, unsigned char *state, int queue,
-	unsigned int *start, unsigned int *count)
+static inline int do_eqbs(u64 token, unsigned char *state, int queue,
+			  int *start, int *count)
 {
-#ifdef CONFIG_64BIT
 	register unsigned long _ccq asm ("0") = *count;
-	register unsigned long _sch asm ("1") = sch;
+	register unsigned long _token asm ("1") = token;
 	unsigned long _queuestart = ((unsigned long)queue << 32) | *start;
 	unsigned long _state = 0;
 
 	asm volatile(
 		"	.insn	rrf,0xB99c0000,%1,%2,0,0"
 		: "+d" (_ccq), "+d" (_queuestart), "+d" (_state)
-		: "d" (_sch)
-		: "memory", "cc" );
+		: "d" (_token)
+		: "memory", "cc");
 	*count = _ccq & 0xff;
 	*start = _queuestart & 0xff;
 	*state = _state & 0xff;
 
 	return (_ccq >> 32) & 0xff;
-#else
-	return 0;
-#endif
-}
-
-
-static inline int
-do_siga_sync(struct subchannel_id schid, unsigned int mask1, unsigned int mask2)
-{
-	register unsigned long reg0 asm ("0") = 2;
-	register struct subchannel_id reg1 asm ("1") = schid;
-	register unsigned long reg2 asm ("2") = mask1;
-	register unsigned long reg3 asm ("3") = mask2;
-	int cc;
-
-	asm volatile(
-		"	siga	0\n"
-		"	ipm	%0\n"
-		"	srl	%0,28\n"
-		: "=d" (cc)
-		: "d" (reg0), "d" (reg1), "d" (reg2), "d" (reg3) : "cc");
-	return cc;
-}
-
-static inline int
-do_siga_input(struct subchannel_id schid, unsigned int mask)
-{
-	register unsigned long reg0 asm ("0") = 1;
-	register struct subchannel_id reg1 asm ("1") = schid;
-	register unsigned long reg2 asm ("2") = mask;
-	int cc;
-
-	asm volatile(
-		"	siga	0\n"
-		"	ipm	%0\n"
-		"	srl	%0,28\n"
-		: "=d" (cc)
-		: "d" (reg0), "d" (reg1), "d" (reg2) : "cc", "memory");
-	return cc;
-}
-
-static inline int
-do_siga_output(unsigned long schid, unsigned long mask, __u32 *bb,
-	       unsigned int fc)
-{
-	register unsigned long __fc asm("0") = fc;
-	register unsigned long __schid asm("1") = schid;
-	register unsigned long __mask asm("2") = mask;
-	int cc;
-
-	asm volatile(
-		"	siga	0\n"
-		"0:	ipm	%0\n"
-		"	srl	%0,28\n"
-		"1:\n"
-		EX_TABLE(0b,1b)
-		: "=d" (cc), "+d" (__fc), "+d" (__schid), "+d" (__mask)
-		: "0" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION)
-		: "cc", "memory");
-	(*bb) = ((unsigned int) __fc) >> 31;
-	return cc;
-}
-
-static inline unsigned long
-do_clear_global_summary(void)
-{
-	register unsigned long __fn asm("1") = 3;
-	register unsigned long __tmp asm("2");
-	register unsigned long __time asm("3");
-
-	asm volatile(
-		"	.insn	rre,0xb2650000,2,0"
-		: "+d" (__fn), "=d" (__tmp), "=d" (__time));
-	return __time;
 }
-	
-/*
- * QDIO device commands returned by extended Sense-ID
- */
-#define DEFAULT_ESTABLISH_QS_CMD 0x1b
-#define DEFAULT_ESTABLISH_QS_COUNT 0x1000
-#define DEFAULT_ACTIVATE_QS_CMD 0x1f
-#define DEFAULT_ACTIVATE_QS_COUNT 0
-
-/*
- * additional CIWs returned by extended Sense-ID
- */
-#define CIW_TYPE_EQUEUE 0x3       /* establish QDIO queues */
-#define CIW_TYPE_AQUEUE 0x4       /* activate QDIO queues */
+#else
+static inline int do_sqbs(u64 token, unsigned char state, int queue,
+			  int *start, int *count) { return 0; }
+static inline int do_eqbs(u64 token, unsigned char *state, int queue,
+			  int *start, int *count) { return 0; }
+#endif /* CONFIG_64BIT */
 
-#define QDIO_CHSC_RESPONSE_CODE_OK 1
-/* flags for st qdio sch data */
-#define CHSC_FLAG_QDIO_CAPABILITY 0x80
-#define CHSC_FLAG_VALIDITY 0x40
+struct qdio_irq;
 
-#define CHSC_FLAG_SIGA_INPUT_NECESSARY 0x40
-#define CHSC_FLAG_SIGA_OUTPUT_NECESSARY 0x20
-#define CHSC_FLAG_SIGA_SYNC_NECESSARY 0x10
-#define CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS 0x08
-#define CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS 0x04
+struct siga_flag {
+	u8 input:1;
+	u8 output:1;
+	u8 sync:1;
+	u8 no_sync_ti:1;
+	u8 no_sync_out_ti:1;
+	u8 no_sync_out_pci:1;
+	u8:2;
+} __attribute__ ((packed));
 
-struct qdio_chsc_ssqd {
+struct chsc_ssqd_area {
 	struct chsc_header request;
-	u16 reserved1:10;
-	u16 ssid:2;
-	u16 fmt:4;
+	u16:10;
+	u8 ssid:2;
+	u8 fmt:4;
 	u16 first_sch;
-	u16 reserved2;
+	u16:16;
 	u16 last_sch;
-	u32 reserved3;
+	u32:32;
 	struct chsc_header response;
-	u32 reserved4;
-	u8  flags;
-	u8  reserved5;
-	u16 sch;
-	u8  qfmt;
-	u8  parm;
-	u8  qdioac1;
-	u8  sch_class;
-	u8  pct;
-	u8  icnt;
-	u8  reserved7;
-	u8  ocnt;
-	u8  reserved8;
-	u8  mbccnt;
-	u16 qdioac2;
-	u64 sch_token;
-};
+	u32:32;
+	struct qdio_ssqd_desc qdio_ssqd;
+} __attribute__ ((packed));
 
-struct qdio_perf_stats {
-#ifdef CONFIG_64BIT
-	atomic64_t tl_runs;
-	atomic64_t outbound_tl_runs;
-	atomic64_t outbound_tl_runs_resched;
-	atomic64_t inbound_tl_runs;
-	atomic64_t inbound_tl_runs_resched;
-	atomic64_t inbound_thin_tl_runs;
-	atomic64_t inbound_thin_tl_runs_resched;
-
-	atomic64_t siga_outs;
-	atomic64_t siga_ins;
-	atomic64_t siga_syncs;
-	atomic64_t pcis;
-	atomic64_t thinints;
-	atomic64_t fast_reqs;
-
-	atomic64_t outbound_cnt;
-	atomic64_t inbound_cnt;
-#else /* CONFIG_64BIT */
-	atomic_t tl_runs;
-	atomic_t outbound_tl_runs;
-	atomic_t outbound_tl_runs_resched;
-	atomic_t inbound_tl_runs;
-	atomic_t inbound_tl_runs_resched;
-	atomic_t inbound_thin_tl_runs;
-	atomic_t inbound_thin_tl_runs_resched;
-
-	atomic_t siga_outs;
-	atomic_t siga_ins;
-	atomic_t siga_syncs;
-	atomic_t pcis;
-	atomic_t thinints;
-	atomic_t fast_reqs;
-
-	atomic_t outbound_cnt;
-	atomic_t inbound_cnt;
-#endif /* CONFIG_64BIT */
+struct scssc_area {
+	struct chsc_header request;
+	u16 operation_code;
+	u16:16;
+	u32:32;
+	u32:32;
+	u64 summary_indicator_addr;
+	u64 subchannel_indicator_addr;
+	u32 ks:4;
+	u32 kc:4;
+	u32:21;
+	u32 isc:3;
+	u32 word_with_d_bit;
+	u32:32;
+	struct subchannel_id schid;
+	u32 reserved[1004];
+	struct chsc_header response;
+	u32:32;
+} __attribute__ ((packed));
+
+struct qdio_input_q {
+	/* input buffer acknowledgement flag */
+	int polling;
+
+	/* last time of noticing incoming data */
+	u64 timestamp;
+
+	/* lock for clearing the acknowledgement */
+	spinlock_t lock;
 };
 
-/* unlikely as the later the better */
-#define SYNC_MEMORY if (unlikely(q->siga_sync)) qdio_siga_sync_q(q)
-#define SYNC_MEMORY_ALL if (unlikely(q->siga_sync)) \
-	qdio_siga_sync(q,~0U,~0U)
-#define SYNC_MEMORY_ALL_OUTB if (unlikely(q->siga_sync)) \
-	qdio_siga_sync(q,~0U,0)
+struct qdio_output_q {
+	/* failed siga-w attempts*/
+	atomic_t busy_siga_counter;
 
-#define NOW qdio_get_micros()
-#define SAVE_TIMESTAMP(q) q->timing.last_transfer_time=NOW
-#define GET_SAVED_TIMESTAMP(q) (q->timing.last_transfer_time)
-#define SAVE_FRONTIER(q,val) q->last_move_ftc=val
-#define GET_SAVED_FRONTIER(q) (q->last_move_ftc)
+	/* start time of busy condition */
+	u64 timestamp;
 
-#define MY_MODULE_STRING(x) #x
+	/* PCIs are enabled for the queue */
+	int pci_out_enabled;
 
-#ifdef CONFIG_64BIT
-#define QDIO_GET_ADDR(x) ((__u32)(unsigned long)x)
-#else /* CONFIG_64BIT */
-#define QDIO_GET_ADDR(x) ((__u32)(long)x)
-#endif /* CONFIG_64BIT */
+	/* timer to check for more outbound work */
+	struct timer_list timer;
+};
 
 struct qdio_q {
-	volatile struct slsb slsb;
+	struct slsb slsb;
+	union {
+		struct qdio_input_q in;
+		struct qdio_output_q out;
+	} u;
 
-	char unused[QDIO_MAX_BUFFERS_PER_Q];
+	/* queue number */
+	int nr;
 
-	__u32 * dev_st_chg_ind;
+	/* bitmask of queue number */
+	int mask;
 
+	/* input or output queue */
 	int is_input_q;
-	struct subchannel_id schid;
-	struct ccw_device *cdev;
-
-	unsigned int is_iqdio_q;
-	unsigned int is_thinint_q;
 
-	/* bit 0 means queue 0, bit 1 means queue 1, ... */
-	unsigned int mask;
-	unsigned int q_no;
+	/* list of thinint input queues */
+	struct list_head entry;
 
+	/* upper-layer program handler */
 	qdio_handler_t (*handler);
 
-	/* points to the next buffer to be checked for having
-	 * been processed by the card (outbound)
-	 * or to the next buffer the program should check for (inbound) */
-	volatile int first_to_check;
-	/* and the last time it was: */
-	volatile int last_move_ftc;
+	/*
+	 * inbound: next buffer the program should check for
+	 * outbound: next buffer to check for having been processed
+	 * by the card
+	 */
+	int first_to_check;
 
-	atomic_t number_of_buffers_used;
-	atomic_t polling;
+	/* first_to_check of the last time */
+	int last_move_ftc;
 
-	unsigned int siga_in;
-	unsigned int siga_out;
-	unsigned int siga_sync;
-	unsigned int siga_sync_done_on_thinints;
-	unsigned int siga_sync_done_on_outb_tis;
-	unsigned int hydra_gives_outbound_pcis;
+	/* beginning position for calling the program */
+	int first_to_kick;
 
-	/* used to save beginning position when calling dd_handlers */
-	int first_element_to_kick;
+	/* number of buffers in use by the adapter */
+	atomic_t nr_buf_used;
 
-	atomic_t use_count;
-	atomic_t is_in_shutdown;
-
-	void *irq_ptr;
-
-	struct timer_list timer;
-#ifdef QDIO_USE_TIMERS_FOR_POLLING
-	atomic_t timer_already_set;
-	spinlock_t timer_lock;
-#else /* QDIO_USE_TIMERS_FOR_POLLING */
+	struct qdio_irq *irq_ptr;
 	struct tasklet_struct tasklet;
-#endif /* QDIO_USE_TIMERS_FOR_POLLING */
 
-
-	enum qdio_irq_states state;
-
-	/* used to store the error condition during a data transfer */
+	/* error condition during a data transfer */
 	unsigned int qdio_error;
-	unsigned int siga_error;
-	unsigned int error_status_flags;
-
-	/* list of interesting queues */
-	volatile struct qdio_q *list_next;
-	volatile struct qdio_q *list_prev;
 
 	struct sl *sl;
-	volatile struct sbal *sbal[QDIO_MAX_BUFFERS_PER_Q];
-
-	struct qdio_buffer *qdio_buffers[QDIO_MAX_BUFFERS_PER_Q];
-
-	unsigned long int_parm;
-
-	/*struct {
-		int in_bh_check_limit;
-		int threshold;
-	} threshold_classes[QDIO_STATS_CLASSES];*/
-
-	struct {
-		/* inbound: the time to stop polling
-		   outbound: the time to kick peer */
-		int threshold; /* the real value */
-
-		/* outbound: last time of do_QDIO
-		   inbound: last time of noticing incoming data */
-		/*__u64 last_transfer_times[QDIO_STATS_NUMBER];
-		int last_transfer_index; */
-
-		__u64 last_transfer_time;
-		__u64 busy_start;
-	} timing;
-	atomic_t busy_siga_counter;
-        unsigned int queue_type;
-	unsigned int is_pci_out;
-
-	/* leave this member at the end. won't be cleared in qdio_fill_qs */
-	struct slib *slib; /* a page is allocated under this pointer,
-			      sl points into this page, offset PAGE_SIZE/2
-			      (after slib) */
+	struct qdio_buffer *sbal[QDIO_MAX_BUFFERS_PER_Q];
+
+	/*
+	 * Warning: Leave this member at the end so it won't be cleared in
+	 * qdio_fill_qs. A page is allocated under this pointer and used for
+	 * slib and sl. slib is 2048 bytes big and sl points to offset
+	 * PAGE_SIZE / 2.
+	 */
+	struct slib *slib;
 } __attribute__ ((aligned(256)));
 
 struct qdio_irq {
-	__u32 * volatile dev_st_chg_ind;
+	struct qib qib;
+	u32 *dsci;		/* address of device state change indicator */
+	struct ccw_device *cdev;
 
 	unsigned long int_parm;
 	struct subchannel_id schid;
-
-	unsigned int is_iqdio_irq;
-	unsigned int is_thinint_irq;
-	unsigned int hydra_gives_outbound_pcis;
-	unsigned int sync_done_on_outb_pcis;
-
-	/* QEBSM facility */
-	unsigned int is_qebsm;
-	unsigned long sch_token;
+	unsigned long sch_token;	/* QEBSM facility */
 
 	enum qdio_irq_states state;
 
-	unsigned int no_input_qs;
-	unsigned int no_output_qs;
+	struct siga_flag siga_flag;	/* siga sync information from qdioac */
 
-	unsigned char qdioac;
+	int nr_input_qs;
+	int nr_output_qs;
 
 	struct ccw1 ccw;
-
 	struct ciw equeue;
 	struct ciw aqueue;
 
-	struct qib qib;
-	
- 	void (*original_int_handler) (struct ccw_device *,
- 				      unsigned long, struct irb *);
+	struct qdio_ssqd_desc ssqd_desc;
+
+	void (*orig_handler) (struct ccw_device *, unsigned long, struct irb *);
 
-	/* leave these four members together at the end. won't be cleared in qdio_fill_irq */
+	/*
+	 * Warning: Leave these members together at the end so they won't be
+	 * cleared in qdio_setup_irq.
+	 */
 	struct qdr *qdr;
+	unsigned long chsc_page;
+
 	struct qdio_q *input_qs[QDIO_MAX_QUEUES_PER_IRQ];
 	struct qdio_q *output_qs[QDIO_MAX_QUEUES_PER_IRQ];
-	struct semaphore setting_up_sema;
+
+	struct mutex setup_mutex;
 };
-#endif
+
+/* helper functions */
+#define queue_type(q)	q->irq_ptr->qib.qfmt
+
+#define is_thinint_irq(irq) \
+	(irq->qib.qfmt == QDIO_IQDIO_QFMT || \
+	 css_general_characteristics.aif_osa)
+
+/* the highest iqdio queue is used for multicast */
+static inline int multicast_outbound(struct qdio_q *q)
+{
+	return (q->irq_ptr->nr_output_qs > 1) &&
+	       (q->nr == q->irq_ptr->nr_output_qs - 1);
+}
+
+static inline unsigned long long get_usecs(void)
+{
+	return monotonic_clock() >> 12;
+}
+
+#define pci_out_supported(q) \
+	(q->irq_ptr->qib.ac & QIB_AC_OUTBOUND_PCI_SUPPORTED)
+#define is_qebsm(q)			(q->irq_ptr->sch_token != 0)
+
+#define need_siga_sync_thinint(q)	(!q->irq_ptr->siga_flag.no_sync_ti)
+#define need_siga_sync_out_thinint(q)	(!q->irq_ptr->siga_flag.no_sync_out_ti)
+#define need_siga_in(q)			(q->irq_ptr->siga_flag.input)
+#define need_siga_out(q)		(q->irq_ptr->siga_flag.output)
+#define need_siga_sync(q)		(q->irq_ptr->siga_flag.sync)
+#define siga_syncs_out_pci(q)		(q->irq_ptr->siga_flag.no_sync_out_pci)
+
+#define for_each_input_queue(irq_ptr, q, i)	\
+	for (i = 0, q = irq_ptr->input_qs[0];	\
+		i < irq_ptr->nr_input_qs;	\
+		q = irq_ptr->input_qs[++i])
+#define for_each_output_queue(irq_ptr, q, i)	\
+	for (i = 0, q = irq_ptr->output_qs[0];	\
+		i < irq_ptr->nr_output_qs;	\
+		q = irq_ptr->output_qs[++i])
+
+#define prev_buf(bufnr)	\
+	((bufnr + QDIO_MAX_BUFFERS_MASK) & QDIO_MAX_BUFFERS_MASK)
+#define next_buf(bufnr)	\
+	((bufnr + 1) & QDIO_MAX_BUFFERS_MASK)
+#define add_buf(bufnr, inc) \
+	((bufnr + inc) & QDIO_MAX_BUFFERS_MASK)
+
+/* prototypes for thin interrupt */
+void qdio_sync_after_thinint(struct qdio_q *q);
+int get_buf_state(struct qdio_q *q, unsigned int bufnr, unsigned char *state);
+void qdio_check_outbound_after_thinint(struct qdio_q *q);
+int qdio_inbound_q_moved(struct qdio_q *q);
+void qdio_kick_inbound_handler(struct qdio_q *q);
+void qdio_stop_polling(struct qdio_q *q);
+int qdio_siga_sync_q(struct qdio_q *q);
+
+void qdio_setup_thinint(struct qdio_irq *irq_ptr);
+int qdio_establish_thinint(struct qdio_irq *irq_ptr);
+void qdio_shutdown_thinint(struct qdio_irq *irq_ptr);
+void tiqdio_add_input_queues(struct qdio_irq *irq_ptr);
+void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr);
+void tiqdio_inbound_processing(unsigned long q);
+int tiqdio_allocate_memory(void);
+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);
+void qdio_outbound_timer(unsigned long data);
+void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
+		      struct irb *irb);
+int qdio_allocate_qs(struct qdio_irq *irq_ptr, int nr_input_qs,
+		     int nr_output_qs);
+void qdio_setup_ssqd_info(struct qdio_irq *irq_ptr);
+int qdio_setup_irq(struct qdio_initialize *init_data);
+void qdio_print_subchannel_info(struct qdio_irq *irq_ptr,
+				struct ccw_device *cdev);
+void qdio_release_memory(struct qdio_irq *irq_ptr);
+int qdio_setup_init(void);
+void qdio_setup_exit(void);
+
+#endif /* _CIO_QDIO_H */
diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c
new file mode 100644
index 0000000..337aa30
--- /dev/null
+++ b/drivers/s390/cio/qdio_debug.c
@@ -0,0 +1,240 @@
+/*
+ *  drivers/s390/cio/qdio_debug.c
+ *
+ *  Copyright IBM Corp. 2008
+ *
+ *  Author: Jan Glauber (jang@linux.vnet.ibm.com)
+ */
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/debugfs.h>
+#include <asm/qdio.h>
+#include <asm/debug.h>
+#include "qdio_debug.h"
+#include "qdio.h"
+
+debug_info_t *qdio_dbf_setup;
+debug_info_t *qdio_dbf_trace;
+
+static struct dentry *debugfs_root;
+#define MAX_DEBUGFS_QUEUES	32
+static struct dentry *debugfs_queues[MAX_DEBUGFS_QUEUES] = { NULL };
+static DEFINE_MUTEX(debugfs_mutex);
+
+void qdio_allocate_do_dbf(struct qdio_initialize *init_data)
+{
+	char dbf_text[20];
+
+	sprintf(dbf_text, "qfmt:%x", init_data->q_format);
+	QDIO_DBF_TEXT0(0, setup, dbf_text);
+	QDIO_DBF_HEX0(0, setup, init_data->adapter_name, 8);
+	sprintf(dbf_text, "qpff%4x", init_data->qib_param_field_format);
+	QDIO_DBF_TEXT0(0, setup, dbf_text);
+	QDIO_DBF_HEX0(0, setup, &init_data->qib_param_field, sizeof(void *));
+	QDIO_DBF_HEX0(0, setup, &init_data->input_slib_elements, sizeof(void *));
+	QDIO_DBF_HEX0(0, setup, &init_data->output_slib_elements, sizeof(void *));
+	sprintf(dbf_text, "niq:%4x", init_data->no_input_qs);
+	QDIO_DBF_TEXT0(0, setup, dbf_text);
+	sprintf(dbf_text, "noq:%4x", init_data->no_output_qs);
+	QDIO_DBF_TEXT0(0, setup, dbf_text);
+	QDIO_DBF_HEX0(0, setup, &init_data->input_handler, sizeof(void *));
+	QDIO_DBF_HEX0(0, setup, &init_data->output_handler, sizeof(void *));
+	QDIO_DBF_HEX0(0, setup, &init_data->int_parm, sizeof(long));
+	QDIO_DBF_HEX0(0, setup, &init_data->flags, sizeof(long));
+	QDIO_DBF_HEX0(0, setup, &init_data->input_sbal_addr_array, sizeof(void *));
+	QDIO_DBF_HEX0(0, setup, &init_data->output_sbal_addr_array, sizeof(void *));
+}
+
+static void qdio_unregister_dbf_views(void)
+{
+	if (qdio_dbf_setup)
+		debug_unregister(qdio_dbf_setup);
+	if (qdio_dbf_trace)
+		debug_unregister(qdio_dbf_trace);
+}
+
+static int qdio_register_dbf_views(void)
+{
+	qdio_dbf_setup = debug_register("qdio_setup", QDIO_DBF_SETUP_PAGES,
+					QDIO_DBF_SETUP_NR_AREAS,
+					QDIO_DBF_SETUP_LEN);
+	if (!qdio_dbf_setup)
+		goto oom;
+	debug_register_view(qdio_dbf_setup, &debug_hex_ascii_view);
+	debug_set_level(qdio_dbf_setup, QDIO_DBF_SETUP_LEVEL);
+
+	qdio_dbf_trace = debug_register("qdio_trace", QDIO_DBF_TRACE_PAGES,
+					QDIO_DBF_TRACE_NR_AREAS,
+					QDIO_DBF_TRACE_LEN);
+	if (!qdio_dbf_trace)
+		goto oom;
+	debug_register_view(qdio_dbf_trace, &debug_hex_ascii_view);
+	debug_set_level(qdio_dbf_trace, QDIO_DBF_TRACE_LEVEL);
+	return 0;
+oom:
+	qdio_unregister_dbf_views();
+	return -ENOMEM;
+}
+
+static int qstat_show(struct seq_file *m, void *v)
+{
+	unsigned char state;
+	struct qdio_q *q = m->private;
+	int i;
+
+	if (!q)
+		return 0;
+
+	seq_printf(m, "device state indicator: %d\n", *q->irq_ptr->dsci);
+	seq_printf(m, "nr_used: %d\n", atomic_read(&q->nr_buf_used));
+	seq_printf(m, "ftc: %d\n", q->first_to_check);
+	seq_printf(m, "last_move_ftc: %d\n", q->last_move_ftc);
+	seq_printf(m, "polling: %d\n", q->u.in.polling);
+	seq_printf(m, "slsb buffer states:\n");
+
+	qdio_siga_sync_q(q);
+	for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; i++) {
+		get_buf_state(q, i, &state);
+		switch (state) {
+		case SLSB_P_INPUT_NOT_INIT:
+		case SLSB_P_OUTPUT_NOT_INIT:
+			seq_printf(m, "N");
+			break;
+		case SLSB_P_INPUT_PRIMED:
+		case SLSB_CU_OUTPUT_PRIMED:
+			seq_printf(m, "+");
+			break;
+		case SLSB_P_INPUT_ACK:
+			seq_printf(m, "A");
+			break;
+		case SLSB_P_INPUT_ERROR:
+		case SLSB_P_OUTPUT_ERROR:
+			seq_printf(m, "x");
+			break;
+		case SLSB_CU_INPUT_EMPTY:
+		case SLSB_P_OUTPUT_EMPTY:
+			seq_printf(m, "-");
+			break;
+		case SLSB_P_INPUT_HALTED:
+		case SLSB_P_OUTPUT_HALTED:
+			seq_printf(m, ".");
+			break;
+		default:
+			seq_printf(m, "?");
+		}
+		if (i == 63)
+			seq_printf(m, "\n");
+	}
+	seq_printf(m, "\n");
+	return 0;
+}
+
+static ssize_t qstat_seq_write(struct file *file, const char __user *buf,
+			       size_t count, loff_t *off)
+{
+	struct seq_file *seq = file->private_data;
+	struct qdio_q *q = seq->private;
+
+	if (!q)
+		return 0;
+
+	if (q->is_input_q)
+		xchg(q->irq_ptr->dsci, 1);
+	local_bh_disable();
+	tasklet_schedule(&q->tasklet);
+	local_bh_enable();
+	return count;
+}
+
+static int qstat_seq_open(struct inode *inode, struct file *filp)
+{
+	return single_open(filp, qstat_show,
+			   filp->f_path.dentry->d_inode->i_private);
+}
+
+static void get_queue_name(struct qdio_q *q, struct ccw_device *cdev, char *name)
+{
+	memset(name, 0, sizeof(name));
+	sprintf(name, "%s", cdev->dev.bus_id);
+	if (q->is_input_q)
+		sprintf(name + strlen(name), "_input");
+	else
+		sprintf(name + strlen(name), "_output");
+	sprintf(name + strlen(name), "_%d", q->nr);
+}
+
+static void remove_debugfs_entry(struct qdio_q *q)
+{
+	int i;
+
+	for (i = 0; i < MAX_DEBUGFS_QUEUES; i++) {
+		if (!debugfs_queues[i])
+			continue;
+		if (debugfs_queues[i]->d_inode->i_private == q) {
+			debugfs_remove(debugfs_queues[i]);
+			debugfs_queues[i] = NULL;
+		}
+	}
+}
+
+static struct file_operations debugfs_fops = {
+	.owner	 = THIS_MODULE,
+	.open	 = qstat_seq_open,
+	.read	 = seq_read,
+	.write	 = qstat_seq_write,
+	.llseek  = seq_lseek,
+	.release = single_release,
+};
+
+static void setup_debugfs_entry(struct qdio_q *q, struct ccw_device *cdev)
+{
+	int i = 0;
+	char name[40];
+
+	while (debugfs_queues[i] != NULL) {
+		i++;
+		if (i >= MAX_DEBUGFS_QUEUES)
+			return;
+	}
+	get_queue_name(q, cdev, name);
+	debugfs_queues[i] = debugfs_create_file(name, S_IFREG | S_IRUGO | S_IWUSR,
+						debugfs_root, q, &debugfs_fops);
+}
+
+void qdio_setup_debug_entries(struct qdio_irq *irq_ptr, struct ccw_device *cdev)
+{
+	struct qdio_q *q;
+	int i;
+
+	mutex_lock(&debugfs_mutex);
+	for_each_input_queue(irq_ptr, q, i)
+		setup_debugfs_entry(q, cdev);
+	for_each_output_queue(irq_ptr, q, i)
+		setup_debugfs_entry(q, cdev);
+	mutex_unlock(&debugfs_mutex);
+}
+
+void qdio_shutdown_debug_entries(struct qdio_irq *irq_ptr, struct ccw_device *cdev)
+{
+	struct qdio_q *q;
+	int i;
+
+	mutex_lock(&debugfs_mutex);
+	for_each_input_queue(irq_ptr, q, i)
+		remove_debugfs_entry(q);
+	for_each_output_queue(irq_ptr, q, i)
+		remove_debugfs_entry(q);
+	mutex_unlock(&debugfs_mutex);
+}
+
+int __init qdio_debug_init(void)
+{
+	debugfs_root = debugfs_create_dir("qdio_queues", NULL);
+	return qdio_register_dbf_views();
+}
+
+void qdio_debug_exit(void)
+{
+	debugfs_remove(debugfs_root);
+	qdio_unregister_dbf_views();
+}
diff --git a/drivers/s390/cio/qdio_debug.h b/drivers/s390/cio/qdio_debug.h
new file mode 100644
index 0000000..8484b83
--- /dev/null
+++ b/drivers/s390/cio/qdio_debug.h
@@ -0,0 +1,91 @@
+/*
+ *  drivers/s390/cio/qdio_debug.h
+ *
+ *  Copyright IBM Corp. 2008
+ *
+ *  Author: Jan Glauber (jang@linux.vnet.ibm.com)
+ */
+#ifndef QDIO_DEBUG_H
+#define QDIO_DEBUG_H
+
+#include <asm/debug.h>
+#include <asm/qdio.h>
+#include "qdio.h"
+
+#define QDIO_DBF_HEX(ex, name, level, addr, len) \
+	do { \
+	if (ex) \
+		debug_exception(qdio_dbf_##name, level, (void *)(addr), len); \
+	else \
+		debug_event(qdio_dbf_##name, level, (void *)(addr), len); \
+	} while (0)
+#define QDIO_DBF_TEXT(ex, name, level, text) \
+	do { \
+	if (ex) \
+		debug_text_exception(qdio_dbf_##name, level, text); \
+	else \
+		debug_text_event(qdio_dbf_##name, level, text); \
+	} while (0)
+
+#define QDIO_DBF_HEX0(ex, name, addr, len) QDIO_DBF_HEX(ex, name, 0, addr, len)
+#define QDIO_DBF_HEX1(ex, name, addr, len) QDIO_DBF_HEX(ex, name, 1, addr, len)
+#define QDIO_DBF_HEX2(ex, name, addr, len) QDIO_DBF_HEX(ex, name, 2, addr, len)
+
+#ifdef CONFIG_QDIO_DEBUG
+#define QDIO_DBF_HEX3(ex, name, addr, len) QDIO_DBF_HEX(ex, name, 3, addr, len)
+#define QDIO_DBF_HEX4(ex, name, addr, len) QDIO_DBF_HEX(ex, name, 4, addr, len)
+#define QDIO_DBF_HEX5(ex, name, addr, len) QDIO_DBF_HEX(ex, name, 5, addr, len)
+#define QDIO_DBF_HEX6(ex, name, addr, len) QDIO_DBF_HEX(ex, name, 6, addr, len)
+#else
+#define QDIO_DBF_HEX3(ex, name, addr, len) do {} while (0)
+#define QDIO_DBF_HEX4(ex, name, addr, len) do {} while (0)
+#define QDIO_DBF_HEX5(ex, name, addr, len) do {} while (0)
+#define QDIO_DBF_HEX6(ex, name, addr, len) do {} while (0)
+#endif /* CONFIG_QDIO_DEBUG */
+
+#define QDIO_DBF_TEXT0(ex, name, text) QDIO_DBF_TEXT(ex, name, 0, text)
+#define QDIO_DBF_TEXT1(ex, name, text) QDIO_DBF_TEXT(ex, name, 1, text)
+#define QDIO_DBF_TEXT2(ex, name, text) QDIO_DBF_TEXT(ex, name, 2, text)
+
+#ifdef CONFIG_QDIO_DEBUG
+#define QDIO_DBF_TEXT3(ex, name, text) QDIO_DBF_TEXT(ex, name, 3, text)
+#define QDIO_DBF_TEXT4(ex, name, text) QDIO_DBF_TEXT(ex, name, 4, text)
+#define QDIO_DBF_TEXT5(ex, name, text) QDIO_DBF_TEXT(ex, name, 5, text)
+#define QDIO_DBF_TEXT6(ex, name, text) QDIO_DBF_TEXT(ex, name, 6, text)
+#else
+#define QDIO_DBF_TEXT3(ex, name, text) do {} while (0)
+#define QDIO_DBF_TEXT4(ex, name, text) do {} while (0)
+#define QDIO_DBF_TEXT5(ex, name, text) do {} while (0)
+#define QDIO_DBF_TEXT6(ex, name, text) do {} while (0)
+#endif /* CONFIG_QDIO_DEBUG */
+
+/* s390dbf views */
+#define QDIO_DBF_SETUP_LEN		8
+#define QDIO_DBF_SETUP_PAGES		4
+#define QDIO_DBF_SETUP_NR_AREAS		1
+
+#define QDIO_DBF_TRACE_LEN		8
+#define QDIO_DBF_TRACE_NR_AREAS		2
+
+#ifdef CONFIG_QDIO_DEBUG
+#define QDIO_DBF_TRACE_PAGES		16
+#define QDIO_DBF_SETUP_LEVEL		6
+#define QDIO_DBF_TRACE_LEVEL		4
+#else /* !CONFIG_QDIO_DEBUG */
+#define QDIO_DBF_TRACE_PAGES		4
+#define QDIO_DBF_SETUP_LEVEL		2
+#define QDIO_DBF_TRACE_LEVEL		2
+#endif /* CONFIG_QDIO_DEBUG */
+
+extern debug_info_t *qdio_dbf_setup;
+extern debug_info_t *qdio_dbf_trace;
+
+void qdio_allocate_do_dbf(struct qdio_initialize *init_data);
+void debug_print_bstat(struct qdio_q *q);
+void qdio_setup_debug_entries(struct qdio_irq *irq_ptr,
+			      struct ccw_device *cdev);
+void qdio_shutdown_debug_entries(struct qdio_irq *irq_ptr,
+				 struct ccw_device *cdev);
+int qdio_debug_init(void);
+void qdio_debug_exit(void);
+#endif
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
new file mode 100644
index 0000000..d10c73c
--- /dev/null
+++ b/drivers/s390/cio/qdio_main.c
@@ -0,0 +1,1755 @@
+/*
+ * linux/drivers/s390/cio/qdio_main.c
+ *
+ * Linux for s390 qdio support, buffer handling, qdio API and module support.
+ *
+ * Copyright 2000,2008 IBM Corp.
+ * Author(s): Utz Bacher <utz.bacher@de.ibm.com>
+ *	      Jan Glauber <jang@linux.vnet.ibm.com>
+ * 2.6 cio integration by Cornelia Huck <cornelia.huck@de.ibm.com>
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/timer.h>
+#include <linux/delay.h>
+#include <asm/atomic.h>
+#include <asm/debug.h>
+#include <asm/qdio.h>
+
+#include "cio.h"
+#include "css.h"
+#include "device.h"
+#include "qdio.h"
+#include "qdio_debug.h"
+#include "qdio_perf.h"
+
+MODULE_AUTHOR("Utz Bacher <utz.bacher@de.ibm.com>,"\
+	"Jan Glauber <jang@linux.vnet.ibm.com>");
+MODULE_DESCRIPTION("QDIO base support");
+MODULE_LICENSE("GPL");
+
+static inline int do_siga_sync(struct subchannel_id schid,
+			       unsigned int out_mask, unsigned int in_mask)
+{
+	register unsigned long __fc asm ("0") = 2;
+	register struct subchannel_id __schid asm ("1") = schid;
+	register unsigned long out asm ("2") = out_mask;
+	register unsigned long in asm ("3") = in_mask;
+	int cc;
+
+	asm volatile(
+		"	siga	0\n"
+		"	ipm	%0\n"
+		"	srl	%0,28\n"
+		: "=d" (cc)
+		: "d" (__fc), "d" (__schid), "d" (out), "d" (in) : "cc");
+	return cc;
+}
+
+static inline int do_siga_input(struct subchannel_id schid, unsigned int mask)
+{
+	register unsigned long __fc asm ("0") = 1;
+	register struct subchannel_id __schid asm ("1") = schid;
+	register unsigned long __mask asm ("2") = mask;
+	int cc;
+
+	asm volatile(
+		"	siga	0\n"
+		"	ipm	%0\n"
+		"	srl	%0,28\n"
+		: "=d" (cc)
+		: "d" (__fc), "d" (__schid), "d" (__mask) : "cc", "memory");
+	return cc;
+}
+
+/**
+ * do_siga_output - perform SIGA-w/wt function
+ * @schid: subchannel id or in case of QEBSM the subchannel token
+ * @mask: which output queues to process
+ * @bb: busy bit indicator, set only if SIGA-w/wt could not access a buffer
+ * @fc: function code to perform
+ *
+ * Returns cc or QDIO_ERROR_SIGA_ACCESS_EXCEPTION.
+ * Note: For IQDC unicast queues only the highest priority queue is processed.
+ */
+static inline int do_siga_output(unsigned long schid, unsigned long mask,
+				 u32 *bb, unsigned int fc)
+{
+	register unsigned long __fc asm("0") = fc;
+	register unsigned long __schid asm("1") = schid;
+	register unsigned long __mask asm("2") = mask;
+	int cc = QDIO_ERROR_SIGA_ACCESS_EXCEPTION;
+
+	asm volatile(
+		"	siga	0\n"
+		"0:	ipm	%0\n"
+		"	srl	%0,28\n"
+		"1:\n"
+		EX_TABLE(0b, 1b)
+		: "+d" (cc), "+d" (__fc), "+d" (__schid), "+d" (__mask)
+		: : "cc", "memory");
+	*bb = ((unsigned int) __fc) >> 31;
+	return cc;
+}
+
+static inline int qdio_check_ccq(struct qdio_q *q, unsigned int ccq)
+{
+	char dbf_text[15];
+
+	/* all done or next buffer state different */
+	if (ccq == 0 || ccq == 32)
+		return 0;
+	/* not all buffers processed */
+	if (ccq == 96 || ccq == 97)
+		return 1;
+	/* notify devices immediately */
+	sprintf(dbf_text, "%d", ccq);
+	QDIO_DBF_TEXT2(1, trace, dbf_text);
+	return -EIO;
+}
+
+/**
+ * qdio_do_eqbs - extract buffer states for QEBSM
+ * @q: queue to manipulate
+ * @state: state of the extracted buffers
+ * @start: buffer number to start at
+ * @count: count of buffers to examine
+ *
+ * Returns the number of successfull extracted equal buffer states.
+ * Stops processing if a state is different from the last buffers state.
+ */
+static int qdio_do_eqbs(struct qdio_q *q, unsigned char *state,
+			int start, int count)
+{
+	unsigned int ccq = 0;
+	int tmp_count = count, tmp_start = start;
+	int nr = q->nr;
+	int rc;
+	char dbf_text[15];
+
+	BUG_ON(!q->irq_ptr->sch_token);
+
+	if (!q->is_input_q)
+		nr += q->irq_ptr->nr_input_qs;
+again:
+	ccq = do_eqbs(q->irq_ptr->sch_token, state, nr, &tmp_start, &tmp_count);
+	rc = qdio_check_ccq(q, ccq);
+
+	/* At least one buffer was processed, return and extract the remaining
+	 * buffers later.
+	 */
+	if ((ccq == 96) && (count != tmp_count))
+		return (count - tmp_count);
+	if (rc == 1) {
+		QDIO_DBF_TEXT5(1, trace, "eqAGAIN");
+		goto again;
+	}
+
+	if (rc < 0) {
+		QDIO_DBF_TEXT2(1, trace, "eqberr");
+		sprintf(dbf_text, "%2x,%2x,%d,%d", count, tmp_count, ccq, nr);
+		QDIO_DBF_TEXT2(1, trace, dbf_text);
+		q->handler(q->irq_ptr->cdev,
+			   QDIO_ERROR_ACTIVATE_CHECK_CONDITION,
+			   0, -1, -1, q->irq_ptr->int_parm);
+		return 0;
+	}
+	return count - tmp_count;
+}
+
+/**
+ * qdio_do_sqbs - set buffer states for QEBSM
+ * @q: queue to manipulate
+ * @state: new state of the buffers
+ * @start: first buffer number to change
+ * @count: how many buffers to change
+ *
+ * Returns the number of successfully changed buffers.
+ * Does retrying until the specified count of buffer states is set or an
+ * error occurs.
+ */
+static int qdio_do_sqbs(struct qdio_q *q, unsigned char state, int start,
+			int count)
+{
+	unsigned int ccq = 0;
+	int tmp_count = count, tmp_start = start;
+	int nr = q->nr;
+	int rc;
+	char dbf_text[15];
+
+	BUG_ON(!q->irq_ptr->sch_token);
+
+	if (!q->is_input_q)
+		nr += q->irq_ptr->nr_input_qs;
+again:
+	ccq = do_sqbs(q->irq_ptr->sch_token, state, nr, &tmp_start, &tmp_count);
+	rc = qdio_check_ccq(q, ccq);
+	if (rc == 1) {
+		QDIO_DBF_TEXT5(1, trace, "sqAGAIN");
+		goto again;
+	}
+	if (rc < 0) {
+		QDIO_DBF_TEXT3(1, trace, "sqberr");
+		sprintf(dbf_text, "%2x,%2x", count, tmp_count);
+		QDIO_DBF_TEXT3(1, trace, dbf_text);
+		sprintf(dbf_text, "%d,%d", ccq, nr);
+		QDIO_DBF_TEXT3(1, trace, dbf_text);
+
+		q->handler(q->irq_ptr->cdev,
+			   QDIO_ERROR_ACTIVATE_CHECK_CONDITION,
+			   0, -1, -1, q->irq_ptr->int_parm);
+		return 0;
+	}
+	WARN_ON(tmp_count);
+	return count - tmp_count;
+}
+
+/* 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)
+{
+	unsigned char __state = 0;
+	int i;
+
+	BUG_ON(bufnr > QDIO_MAX_BUFFERS_MASK);
+	BUG_ON(count > QDIO_MAX_BUFFERS_PER_Q);
+
+	if (is_qebsm(q))
+		return qdio_do_eqbs(q, state, bufnr, count);
+
+	for (i = 0; i < count; i++) {
+		if (!__state)
+			__state = q->slsb.val[bufnr];
+		else if (q->slsb.val[bufnr] != __state)
+			break;
+		bufnr = next_buf(bufnr);
+	}
+	*state = __state;
+	return i;
+}
+
+inline int get_buf_state(struct qdio_q *q, unsigned int bufnr,
+		  unsigned char *state)
+{
+	return get_buf_states(q, bufnr, state, 1);
+}
+
+/* wrap-around safe setting of slsb states, returns number of changed buffers */
+static inline int set_buf_states(struct qdio_q *q, int bufnr,
+				 unsigned char state, int count)
+{
+	int i;
+
+	BUG_ON(bufnr > QDIO_MAX_BUFFERS_MASK);
+	BUG_ON(count > QDIO_MAX_BUFFERS_PER_Q);
+
+	if (is_qebsm(q))
+		return qdio_do_sqbs(q, state, bufnr, count);
+
+	for (i = 0; i < count; i++) {
+		xchg(&q->slsb.val[bufnr], state);
+		bufnr = next_buf(bufnr);
+	}
+	return count;
+}
+
+static inline int set_buf_state(struct qdio_q *q, int bufnr,
+				unsigned char state)
+{
+	return set_buf_states(q, bufnr, state, 1);
+}
+
+/* set slsb states to initial state */
+void qdio_init_buf_states(struct qdio_irq *irq_ptr)
+{
+	struct qdio_q *q;
+	int i;
+
+	for_each_input_queue(irq_ptr, q, i)
+		set_buf_states(q, 0, SLSB_P_INPUT_NOT_INIT,
+			       QDIO_MAX_BUFFERS_PER_Q);
+	for_each_output_queue(irq_ptr, q, i)
+		set_buf_states(q, 0, SLSB_P_OUTPUT_NOT_INIT,
+			       QDIO_MAX_BUFFERS_PER_Q);
+}
+
+static int qdio_siga_sync(struct qdio_q *q, unsigned int output,
+			  unsigned int input)
+{
+	int cc;
+
+	if (!need_siga_sync(q))
+		return 0;
+
+	qdio_perf_stat_inc(&perf_stats.siga_sync);
+
+	cc = do_siga_sync(q->irq_ptr->schid, output, input);
+	if (cc) {
+		QDIO_DBF_TEXT4(0, trace, "sigasync");
+		QDIO_DBF_HEX4(0, trace, &q, sizeof(void *));
+		QDIO_DBF_HEX3(0, trace, &cc, sizeof(int *));
+	}
+	return cc;
+}
+
+inline int qdio_siga_sync_q(struct qdio_q *q)
+{
+	if (q->is_input_q)
+		return qdio_siga_sync(q, 0, q->mask);
+	else
+		return qdio_siga_sync(q, q->mask, 0);
+}
+
+static inline int qdio_siga_sync_out(struct qdio_q *q)
+{
+	return qdio_siga_sync(q, ~0U, 0);
+}
+
+static inline int qdio_siga_sync_all(struct qdio_q *q)
+{
+	return qdio_siga_sync(q, ~0U, ~0U);
+}
+
+static inline int qdio_do_siga_output(struct qdio_q *q, unsigned int *busy_bit)
+{
+	unsigned int fc = 0;
+	unsigned long schid;
+
+	if (!is_qebsm(q))
+		schid = *((u32 *)&q->irq_ptr->schid);
+	else {
+		schid = q->irq_ptr->sch_token;
+		fc |= 0x80;
+	}
+	return do_siga_output(schid, q->mask, busy_bit, fc);
+}
+
+static int qdio_siga_output(struct qdio_q *q)
+{
+	int cc;
+	u32 busy_bit;
+	u64 start_time = 0;
+
+	QDIO_DBF_TEXT5(0, trace, "sigaout");
+	QDIO_DBF_HEX5(0, trace, &q, sizeof(void *));
+
+	qdio_perf_stat_inc(&perf_stats.siga_out);
+again:
+	cc = qdio_do_siga_output(q, &busy_bit);
+	if (queue_type(q) == QDIO_IQDIO_QFMT && cc == 2 && busy_bit) {
+		if (!start_time)
+			start_time = get_usecs();
+		else if ((get_usecs() - start_time) < QDIO_BUSY_BIT_PATIENCE)
+			goto again;
+	}
+
+	if (cc == 2 && busy_bit)
+		cc |= QDIO_ERROR_SIGA_BUSY;
+	if (cc)
+		QDIO_DBF_HEX3(0, trace, &cc, sizeof(int *));
+	return cc;
+}
+
+static inline int qdio_siga_input(struct qdio_q *q)
+{
+	int cc;
+
+	QDIO_DBF_TEXT4(0, trace, "sigain");
+	QDIO_DBF_HEX4(0, trace, &q, sizeof(void *));
+
+	qdio_perf_stat_inc(&perf_stats.siga_in);
+
+	cc = do_siga_input(q->irq_ptr->schid, q->mask);
+	if (cc)
+		QDIO_DBF_HEX3(0, trace, &cc, sizeof(int *));
+	return cc;
+}
+
+/* called from thinint inbound handler */
+void qdio_sync_after_thinint(struct qdio_q *q)
+{
+	if (pci_out_supported(q)) {
+		if (need_siga_sync_thinint(q))
+			qdio_siga_sync_all(q);
+		else if (need_siga_sync_out_thinint(q))
+			qdio_siga_sync_out(q);
+	} else
+		qdio_siga_sync_q(q);
+}
+
+inline void qdio_stop_polling(struct qdio_q *q)
+{
+	spin_lock_bh(&q->u.in.lock);
+	if (!q->u.in.polling) {
+		spin_unlock_bh(&q->u.in.lock);
+		return;
+	}
+	q->u.in.polling = 0;
+	qdio_perf_stat_inc(&perf_stats.debug_stop_polling);
+
+	/* show the card that we are not polling anymore */
+	set_buf_state(q, q->last_move_ftc, SLSB_P_INPUT_NOT_INIT);
+	spin_unlock_bh(&q->u.in.lock);
+}
+
+static void announce_buffer_error(struct qdio_q *q)
+{
+	char dbf_text[15];
+
+	if (q->is_input_q)
+		QDIO_DBF_TEXT3(1, trace, "inperr");
+	else
+		QDIO_DBF_TEXT3(0, trace, "outperr");
+
+	sprintf(dbf_text, "%x-%x-%x", q->first_to_check,
+		q->sbal[q->first_to_check]->element[14].flags,
+		q->sbal[q->first_to_check]->element[15].flags);
+	QDIO_DBF_TEXT3(1, trace, dbf_text);
+	QDIO_DBF_HEX2(1, trace, q->sbal[q->first_to_check], 256);
+
+	q->qdio_error = QDIO_ERROR_SLSB_STATE;
+}
+
+static int get_inbound_buffer_frontier(struct qdio_q *q)
+{
+	int count, stop;
+	unsigned char state;
+
+	/*
+	 * If we still poll don't update last_move_ftc, keep the
+	 * previously ACK buffer there.
+	 */
+	if (!q->u.in.polling)
+		q->last_move_ftc = q->first_to_check;
+
+	/*
+	 * Don't check 128 buffers, as otherwise qdio_inbound_q_moved
+	 * would return 0.
+	 */
+	count = min(atomic_read(&q->nr_buf_used), QDIO_MAX_BUFFERS_MASK);
+	stop = add_buf(q->first_to_check, count);
+
+	/*
+	 * No siga sync here, as a PCI or we after a thin interrupt
+	 * will sync the queues.
+	 */
+
+	/* need to set count to 1 for non-qebsm */
+	if (!is_qebsm(q))
+		count = 1;
+
+check_next:
+	if (q->first_to_check == stop)
+		goto out;
+
+	count = get_buf_states(q, q->first_to_check, &state, count);
+	if (!count)
+		goto out;
+
+	switch (state) {
+	case SLSB_P_INPUT_PRIMED:
+		QDIO_DBF_TEXT5(0, trace, "inptprim");
+
+		/*
+		 * Only ACK the first buffer. The ACK will be removed in
+		 * qdio_stop_polling.
+		 */
+		if (q->u.in.polling)
+			state = SLSB_P_INPUT_NOT_INIT;
+		else {
+			q->u.in.polling = 1;
+			state = SLSB_P_INPUT_ACK;
+		}
+		set_buf_state(q, q->first_to_check, state);
+
+		/*
+		 * Need to change all PRIMED buffers to NOT_INIT, otherwise
+		 * we're loosing initiative in the thinint code.
+		 */
+		if (count > 1)
+			set_buf_states(q, next_buf(q->first_to_check),
+				       SLSB_P_INPUT_NOT_INIT, count - 1);
+
+		/*
+		 * No siga-sync needed for non-qebsm here, as the inbound queue
+		 * will be synced on the next siga-r, resp.
+		 * tiqdio_is_inbound_q_done will do the siga-sync.
+		 */
+		q->first_to_check = add_buf(q->first_to_check, count);
+		atomic_sub(count, &q->nr_buf_used);
+		goto check_next;
+	case SLSB_P_INPUT_ERROR:
+		announce_buffer_error(q);
+		/* process the buffer, the upper layer will take care of it */
+		q->first_to_check = add_buf(q->first_to_check, count);
+		atomic_sub(count, &q->nr_buf_used);
+		break;
+	case SLSB_CU_INPUT_EMPTY:
+	case SLSB_P_INPUT_NOT_INIT:
+	case SLSB_P_INPUT_ACK:
+		QDIO_DBF_TEXT5(0, trace, "inpnipro");
+		break;
+	default:
+		BUG();
+	}
+out:
+	QDIO_DBF_HEX4(0, trace, &q->first_to_check, sizeof(int));
+	return q->first_to_check;
+}
+
+int qdio_inbound_q_moved(struct qdio_q *q)
+{
+	int bufnr;
+
+	bufnr = get_inbound_buffer_frontier(q);
+
+	if ((bufnr != q->last_move_ftc) || q->qdio_error) {
+		if (!need_siga_sync(q) && !pci_out_supported(q))
+			q->u.in.timestamp = get_usecs();
+
+		QDIO_DBF_TEXT4(0, trace, "inhasmvd");
+		QDIO_DBF_HEX4(0, trace, &q, sizeof(void *));
+		return 1;
+	} else
+		return 0;
+}
+
+static int qdio_inbound_q_done(struct qdio_q *q)
+{
+	unsigned char state;
+#ifdef CONFIG_QDIO_DEBUG
+	char dbf_text[15];
+#endif
+
+	if (!atomic_read(&q->nr_buf_used))
+		return 1;
+
+	/*
+	 * We need that one for synchronization with the adapter, as it
+	 * does a kind of PCI avoidance.
+	 */
+	qdio_siga_sync_q(q);
+
+	get_buf_state(q, q->first_to_check, &state);
+	if (state == SLSB_P_INPUT_PRIMED)
+		/* we got something to do */
+		return 0;
+
+	/* on VM, we don't poll, so the q is always done here */
+	if (need_siga_sync(q) || pci_out_supported(q))
+		return 1;
+
+	/*
+	 * At this point we know, that inbound first_to_check
+	 * has (probably) not moved (see qdio_inbound_processing).
+	 */
+	if (get_usecs() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) {
+#ifdef CONFIG_QDIO_DEBUG
+		QDIO_DBF_TEXT4(0, trace, "inqisdon");
+		QDIO_DBF_HEX4(0, trace, &q, sizeof(void *));
+		sprintf(dbf_text, "pf%02x", q->first_to_check);
+		QDIO_DBF_TEXT4(0, trace, dbf_text);
+#endif /* CONFIG_QDIO_DEBUG */
+		return 1;
+	} else {
+#ifdef CONFIG_QDIO_DEBUG
+		QDIO_DBF_TEXT4(0, trace, "inqisntd");
+		QDIO_DBF_HEX4(0, trace, &q, sizeof(void *));
+		sprintf(dbf_text, "pf%02x", q->first_to_check);
+		QDIO_DBF_TEXT4(0, trace, dbf_text);
+#endif /* CONFIG_QDIO_DEBUG */
+		return 0;
+	}
+}
+
+void qdio_kick_inbound_handler(struct qdio_q *q)
+{
+	int count, start, end;
+#ifdef CONFIG_QDIO_DEBUG
+	char dbf_text[15];
+#endif
+
+	qdio_perf_stat_inc(&perf_stats.inbound_handler);
+
+	start = q->first_to_kick;
+	end = q->first_to_check;
+	if (end >= start)
+		count = end - start;
+	else
+		count = end + QDIO_MAX_BUFFERS_PER_Q - start;
+
+#ifdef CONFIG_QDIO_DEBUG
+	sprintf(dbf_text, "s=%2xc=%2x", start, count);
+	QDIO_DBF_TEXT4(0, trace, dbf_text);
+#endif /* CONFIG_QDIO_DEBUG */
+
+	if (unlikely(q->irq_ptr->state != QDIO_IRQ_STATE_ACTIVE))
+		return;
+
+	q->handler(q->irq_ptr->cdev, q->qdio_error, q->nr,
+		   start, count, q->irq_ptr->int_parm);
+
+	/* for the next time */
+	q->first_to_kick = q->first_to_check;
+	q->qdio_error = 0;
+}
+
+static void __qdio_inbound_processing(struct qdio_q *q)
+{
+	qdio_perf_stat_inc(&perf_stats.tasklet_inbound);
+again:
+	if (!qdio_inbound_q_moved(q))
+		return;
+
+	qdio_kick_inbound_handler(q);
+
+	if (!qdio_inbound_q_done(q))
+		/* means poll time is not yet over */
+		goto again;
+
+	qdio_stop_polling(q);
+	/*
+	 * We need to check again to not lose initiative after
+	 * resetting the ACK state.
+	 */
+	if (!qdio_inbound_q_done(q))
+		goto again;
+}
+
+/* inbound tasklet */
+void qdio_inbound_processing(unsigned long data)
+{
+	struct qdio_q *q = (struct qdio_q *)data;
+	__qdio_inbound_processing(q);
+}
+
+static int get_outbound_buffer_frontier(struct qdio_q *q)
+{
+	int count, stop;
+	unsigned char state;
+
+	if (((queue_type(q) != QDIO_IQDIO_QFMT) && !pci_out_supported(q)) ||
+	    (queue_type(q) == QDIO_IQDIO_QFMT && multicast_outbound(q)))
+		qdio_siga_sync_q(q);
+
+	/*
+	 * Don't check 128 buffers, as otherwise qdio_inbound_q_moved
+	 * would return 0.
+	 */
+	count = min(atomic_read(&q->nr_buf_used), QDIO_MAX_BUFFERS_MASK);
+	stop = add_buf(q->first_to_check, count);
+
+	/* need to set count to 1 for non-qebsm */
+	if (!is_qebsm(q))
+		count = 1;
+
+check_next:
+	if (q->first_to_check == stop)
+		return q->first_to_check;
+
+	count = get_buf_states(q, q->first_to_check, &state, count);
+	if (!count)
+		return q->first_to_check;
+
+	switch (state) {
+	case SLSB_P_OUTPUT_EMPTY:
+		/* the adapter got it */
+		QDIO_DBF_TEXT5(0, trace, "outpempt");
+
+		atomic_sub(count, &q->nr_buf_used);
+		q->first_to_check = add_buf(q->first_to_check, count);
+		/*
+		 * We fetch all buffer states at once. get_buf_states may
+		 * return count < stop. For QEBSM we do not loop.
+		 */
+		if (is_qebsm(q))
+			break;
+		goto check_next;
+	case SLSB_P_OUTPUT_ERROR:
+		announce_buffer_error(q);
+		/* process the buffer, the upper layer will take care of it */
+		q->first_to_check = add_buf(q->first_to_check, count);
+		atomic_sub(count, &q->nr_buf_used);
+		break;
+	case SLSB_CU_OUTPUT_PRIMED:
+		/* the adapter has not fetched the output yet */
+		QDIO_DBF_TEXT5(0, trace, "outpprim");
+		break;
+	case SLSB_P_OUTPUT_NOT_INIT:
+	case SLSB_P_OUTPUT_HALTED:
+		break;
+	default:
+		BUG();
+	}
+	return q->first_to_check;
+}
+
+/* all buffers processed? */
+static inline int qdio_outbound_q_done(struct qdio_q *q)
+{
+	return atomic_read(&q->nr_buf_used) == 0;
+}
+
+static inline int qdio_outbound_q_moved(struct qdio_q *q)
+{
+	int bufnr;
+
+	bufnr = get_outbound_buffer_frontier(q);
+
+	if ((bufnr != q->last_move_ftc) || q->qdio_error) {
+		q->last_move_ftc = bufnr;
+		QDIO_DBF_TEXT4(0, trace, "oqhasmvd");
+		QDIO_DBF_HEX4(0, trace, &q, sizeof(void *));
+		return 1;
+	} else
+		return 0;
+}
+
+/*
+ * VM could present us cc=2 and busy bit set on SIGA-write
+ * during reconfiguration of their Guest LAN (only in iqdio mode,
+ * otherwise qdio is asynchronous and cc=2 and busy bit there will take
+ * the queues down immediately).
+ *
+ * Therefore qdio_siga_output will try for a short time constantly,
+ * if such a condition occurs. If it doesn't change, it will
+ * increase the busy_siga_counter and save the timestamp, and
+ * schedule the queue for later processing. qdio_outbound_processing
+ * will check out the counter. If non-zero, it will call qdio_kick_outbound_q
+ * as often as the value of the counter. This will attempt further SIGA
+ * instructions. For each successful SIGA, the counter is
+ * decreased, for failing SIGAs the counter remains the same, after
+ * all. After some time of no movement, qdio_kick_outbound_q will
+ * finally fail and reflect corresponding error codes to call
+ * the upper layer module and have it take the queues down.
+ *
+ * Note that this is a change from the original HiperSockets design
+ * (saying cc=2 and busy bit means take the queues down), but in
+ * these days Guest LAN didn't exist... excessive cc=2 with busy bit
+ * conditions will still take the queues down, but the threshold is
+ * higher due to the Guest LAN environment.
+ *
+ * Called from outbound tasklet and do_QDIO handler.
+ */
+static void qdio_kick_outbound_q(struct qdio_q *q)
+{
+	int rc;
+#ifdef CONFIG_QDIO_DEBUG
+	char dbf_text[15];
+
+	QDIO_DBF_TEXT5(0, trace, "kickoutq");
+	QDIO_DBF_HEX5(0, trace, &q, sizeof(void *));
+#endif /* CONFIG_QDIO_DEBUG */
+
+	if (!need_siga_out(q))
+		return;
+
+	rc = qdio_siga_output(q);
+	switch (rc) {
+	case 0:
+		/* went smooth this time, reset timestamp */
+		q->u.out.timestamp = 0;
+
+		/* TODO: improve error handling for CC=0 case */
+#ifdef CONFIG_QDIO_DEBUG
+		QDIO_DBF_TEXT3(0, trace, "cc2reslv");
+		sprintf(dbf_text, "%4x%2x%2x", q->irq_ptr->schid.sch_no, q->nr,
+			atomic_read(&q->u.out.busy_siga_counter));
+		QDIO_DBF_TEXT3(0, trace, dbf_text);
+#endif /* CONFIG_QDIO_DEBUG */
+		break;
+	/* cc=2 and busy bit */
+	case (2 | QDIO_ERROR_SIGA_BUSY):
+		atomic_inc(&q->u.out.busy_siga_counter);
+
+		/* if the last siga was successful, save timestamp here */
+		if (!q->u.out.timestamp)
+			q->u.out.timestamp = get_usecs();
+
+		/* if we're in time, don't touch qdio_error */
+		if (get_usecs() - q->u.out.timestamp < QDIO_BUSY_BIT_GIVE_UP) {
+			tasklet_schedule(&q->tasklet);
+			break;
+		}
+		QDIO_DBF_TEXT2(0, trace, "cc2REPRT");
+#ifdef CONFIG_QDIO_DEBUG
+		sprintf(dbf_text, "%4x%2x%2x", q->irq_ptr->schid.sch_no, q->nr,
+			atomic_read(&q->u.out.busy_siga_counter));
+		QDIO_DBF_TEXT3(0, trace, dbf_text);
+#endif /* CONFIG_QDIO_DEBUG */
+	default:
+		/* for plain cc=1, 2 or 3 */
+		q->qdio_error = rc;
+	}
+}
+
+static void qdio_kick_outbound_handler(struct qdio_q *q)
+{
+	int start, end, count;
+#ifdef CONFIG_QDIO_DEBUG
+	char dbf_text[15];
+#endif
+
+	start = q->first_to_kick;
+	end = q->last_move_ftc;
+	if (end >= start)
+		count = end - start;
+	else
+		count = end + QDIO_MAX_BUFFERS_PER_Q - start;
+
+#ifdef CONFIG_QDIO_DEBUG
+	QDIO_DBF_TEXT4(0, trace, "kickouth");
+	QDIO_DBF_HEX4(0, trace, &q, sizeof(void *));
+
+	sprintf(dbf_text, "s=%2xc=%2x", start, count);
+	QDIO_DBF_TEXT4(0, trace, dbf_text);
+#endif /* CONFIG_QDIO_DEBUG */
+
+	if (unlikely(q->irq_ptr->state != QDIO_IRQ_STATE_ACTIVE))
+		return;
+
+	q->handler(q->irq_ptr->cdev, q->qdio_error, q->nr, start, count,
+		   q->irq_ptr->int_parm);
+
+	/* for the next time: */
+	q->first_to_kick = q->last_move_ftc;
+	q->qdio_error = 0;
+}
+
+static void __qdio_outbound_processing(struct qdio_q *q)
+{
+	int siga_attempts;
+
+	qdio_perf_stat_inc(&perf_stats.tasklet_outbound);
+
+	/* see comment in qdio_kick_outbound_q */
+	siga_attempts = atomic_read(&q->u.out.busy_siga_counter);
+	while (siga_attempts--) {
+		atomic_dec(&q->u.out.busy_siga_counter);
+		qdio_kick_outbound_q(q);
+	}
+
+	BUG_ON(atomic_read(&q->nr_buf_used) < 0);
+
+	if (qdio_outbound_q_moved(q))
+		qdio_kick_outbound_handler(q);
+
+	if (queue_type(q) == QDIO_ZFCP_QFMT) {
+		if (!pci_out_supported(q) && !qdio_outbound_q_done(q))
+			tasklet_schedule(&q->tasklet);
+		return;
+	}
+
+	/* bail out for HiperSockets unicast queues */
+	if (queue_type(q) == QDIO_IQDIO_QFMT && !multicast_outbound(q))
+		return;
+
+	if (q->u.out.pci_out_enabled)
+		return;
+
+	/*
+	 * Now we know that queue type is either qeth without pci enabled
+	 * or HiperSockets multicast. Make sure buffer switch from PRIMED to
+	 * EMPTY is noticed and outbound_handler is called after some time.
+	 */
+	if (qdio_outbound_q_done(q))
+		del_timer(&q->u.out.timer);
+	else {
+		if (!timer_pending(&q->u.out.timer)) {
+			mod_timer(&q->u.out.timer, jiffies + 10 * HZ);
+			qdio_perf_stat_inc(&perf_stats.debug_tl_out_timer);
+		}
+	}
+}
+
+/* outbound tasklet */
+void qdio_outbound_processing(unsigned long data)
+{
+	struct qdio_q *q = (struct qdio_q *)data;
+	__qdio_outbound_processing(q);
+}
+
+void qdio_outbound_timer(unsigned long data)
+{
+	struct qdio_q *q = (struct qdio_q *)data;
+	tasklet_schedule(&q->tasklet);
+}
+
+/* called from thinint inbound tasklet */
+void qdio_check_outbound_after_thinint(struct qdio_q *q)
+{
+	struct qdio_q *out;
+	int i;
+
+	if (!pci_out_supported(q))
+		return;
+
+	for_each_output_queue(q->irq_ptr, out, i)
+		if (!qdio_outbound_q_done(out))
+			tasklet_schedule(&out->tasklet);
+}
+
+static inline void qdio_set_state(struct qdio_irq *irq_ptr,
+				  enum qdio_irq_states state)
+{
+#ifdef CONFIG_QDIO_DEBUG
+	char dbf_text[15];
+
+	QDIO_DBF_TEXT5(0, trace, "newstate");
+	sprintf(dbf_text, "%4x%4x", irq_ptr->schid.sch_no, state);
+	QDIO_DBF_TEXT5(0, trace, dbf_text);
+#endif /* CONFIG_QDIO_DEBUG */
+
+	irq_ptr->state = state;
+	mb();
+}
+
+static void qdio_irq_check_sense(struct subchannel_id schid, struct irb *irb)
+{
+	char dbf_text[15];
+
+	if (irb->esw.esw0.erw.cons) {
+		sprintf(dbf_text, "sens%4x", schid.sch_no);
+		QDIO_DBF_TEXT2(1, trace, dbf_text);
+		QDIO_DBF_HEX0(0, trace, irb, 64);
+		QDIO_DBF_HEX0(0, trace, irb->ecw, 64);
+	}
+}
+
+/* PCI interrupt handler */
+static void qdio_int_handler_pci(struct qdio_irq *irq_ptr)
+{
+	int i;
+	struct qdio_q *q;
+
+	qdio_perf_stat_inc(&perf_stats.pci_int);
+
+	for_each_input_queue(irq_ptr, q, i)
+		tasklet_schedule(&q->tasklet);
+
+	if (!(irq_ptr->qib.ac & QIB_AC_OUTBOUND_PCI_SUPPORTED))
+		return;
+
+	for_each_output_queue(irq_ptr, q, i) {
+		if (qdio_outbound_q_done(q))
+			continue;
+
+		if (!siga_syncs_out_pci(q))
+			qdio_siga_sync_q(q);
+
+		tasklet_schedule(&q->tasklet);
+	}
+}
+
+static void qdio_handle_activate_check(struct ccw_device *cdev,
+				unsigned long intparm, int cstat, int dstat)
+{
+	struct qdio_irq *irq_ptr = cdev->private->qdio_data;
+	struct qdio_q *q;
+	char dbf_text[15];
+
+	QDIO_DBF_TEXT2(1, trace, "ick2");
+	sprintf(dbf_text, "%s", cdev->dev.bus_id);
+	QDIO_DBF_TEXT2(1, trace, dbf_text);
+	QDIO_DBF_HEX2(0, trace, &intparm, sizeof(int));
+	QDIO_DBF_HEX2(0, trace, &dstat, sizeof(int));
+	QDIO_DBF_HEX2(0, trace, &cstat, sizeof(int));
+
+	if (irq_ptr->nr_input_qs) {
+		q = irq_ptr->input_qs[0];
+	} else if (irq_ptr->nr_output_qs) {
+		q = irq_ptr->output_qs[0];
+	} else {
+		dump_stack();
+		goto no_handler;
+	}
+	q->handler(q->irq_ptr->cdev, QDIO_ERROR_ACTIVATE_CHECK_CONDITION,
+		   0, -1, -1, irq_ptr->int_parm);
+no_handler:
+	qdio_set_state(irq_ptr, QDIO_IRQ_STATE_STOPPED);
+}
+
+static void qdio_call_shutdown(struct work_struct *work)
+{
+	struct ccw_device_private *priv;
+	struct ccw_device *cdev;
+
+	priv = container_of(work, struct ccw_device_private, kick_work);
+	cdev = priv->cdev;
+	qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR);
+	put_device(&cdev->dev);
+}
+
+static void qdio_int_error(struct ccw_device *cdev)
+{
+	struct qdio_irq *irq_ptr = cdev->private->qdio_data;
+
+	switch (irq_ptr->state) {
+	case QDIO_IRQ_STATE_INACTIVE:
+	case QDIO_IRQ_STATE_CLEANUP:
+		qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
+		break;
+	case QDIO_IRQ_STATE_ESTABLISHED:
+	case QDIO_IRQ_STATE_ACTIVE:
+		qdio_set_state(irq_ptr, QDIO_IRQ_STATE_STOPPED);
+		if (get_device(&cdev->dev)) {
+			/* Can't call shutdown from interrupt context. */
+			PREPARE_WORK(&cdev->private->kick_work,
+				     qdio_call_shutdown);
+			queue_work(ccw_device_work, &cdev->private->kick_work);
+		}
+		break;
+	default:
+		WARN_ON(1);
+	}
+	wake_up(&cdev->private->wait_q);
+}
+
+static int qdio_establish_check_errors(struct ccw_device *cdev, int cstat,
+					   int dstat)
+{
+	struct qdio_irq *irq_ptr = cdev->private->qdio_data;
+
+	if (cstat || (dstat & ~(DEV_STAT_CHN_END | DEV_STAT_DEV_END))) {
+		QDIO_DBF_TEXT2(1, setup, "eq:ckcon");
+		goto error;
+	}
+
+	if (!(dstat & DEV_STAT_DEV_END)) {
+		QDIO_DBF_TEXT2(1, setup, "eq:no de");
+		goto error;
+	}
+
+	if (dstat & ~(DEV_STAT_CHN_END | DEV_STAT_DEV_END)) {
+		QDIO_DBF_TEXT2(1, setup, "eq:badio");
+		goto error;
+	}
+	return 0;
+error:
+	QDIO_DBF_HEX2(0, trace, &cstat, sizeof(int));
+	QDIO_DBF_HEX2(0, trace, &dstat, sizeof(int));
+	qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
+	return 1;
+}
+
+static void qdio_establish_handle_irq(struct ccw_device *cdev, int cstat,
+				      int dstat)
+{
+	struct qdio_irq *irq_ptr = cdev->private->qdio_data;
+	char dbf_text[15];
+
+	sprintf(dbf_text, "qehi%4x", cdev->private->schid.sch_no);
+	QDIO_DBF_TEXT0(0, setup, dbf_text);
+	QDIO_DBF_TEXT0(0, trace, dbf_text);
+
+	if (!qdio_establish_check_errors(cdev, cstat, dstat))
+		qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ESTABLISHED);
+}
+
+/* qdio interrupt handler */
+void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
+		      struct irb *irb)
+{
+	struct qdio_irq *irq_ptr = cdev->private->qdio_data;
+	int cstat, dstat;
+	char dbf_text[15];
+
+	qdio_perf_stat_inc(&perf_stats.qdio_int);
+
+	if (!intparm || !irq_ptr) {
+		sprintf(dbf_text, "qihd%4x", cdev->private->schid.sch_no);
+		QDIO_DBF_TEXT2(1, setup, dbf_text);
+		return;
+	}
+
+	if (IS_ERR(irb)) {
+		switch (PTR_ERR(irb)) {
+		case -EIO:
+			sprintf(dbf_text, "ierr%4x",
+				cdev->private->schid.sch_no);
+			QDIO_DBF_TEXT2(1, setup, dbf_text);
+			qdio_int_error(cdev);
+			return;
+		case -ETIMEDOUT:
+			sprintf(dbf_text, "qtoh%4x",
+				cdev->private->schid.sch_no);
+			QDIO_DBF_TEXT2(1, setup, dbf_text);
+			qdio_int_error(cdev);
+			return;
+		default:
+			WARN_ON(1);
+			return;
+		}
+	}
+	qdio_irq_check_sense(irq_ptr->schid, irb);
+
+	cstat = irb->scsw.cmd.cstat;
+	dstat = irb->scsw.cmd.dstat;
+
+	switch (irq_ptr->state) {
+	case QDIO_IRQ_STATE_INACTIVE:
+		qdio_establish_handle_irq(cdev, cstat, dstat);
+		break;
+
+	case QDIO_IRQ_STATE_CLEANUP:
+		qdio_set_state(irq_ptr, QDIO_IRQ_STATE_INACTIVE);
+		break;
+
+	case QDIO_IRQ_STATE_ESTABLISHED:
+	case QDIO_IRQ_STATE_ACTIVE:
+		if (cstat & SCHN_STAT_PCI) {
+			qdio_int_handler_pci(irq_ptr);
+			/* no state change so no need to wake up wait_q */
+			return;
+		}
+		if ((cstat & ~SCHN_STAT_PCI) || dstat) {
+			qdio_handle_activate_check(cdev, intparm, cstat,
+						   dstat);
+			break;
+		}
+	default:
+		WARN_ON(1);
+	}
+	wake_up(&cdev->private->wait_q);
+}
+
+/**
+ * qdio_get_ssqd_desc - get qdio subchannel description
+ * @cdev: ccw device to get description for
+ *
+ * Returns a pointer to the saved qdio subchannel description,
+ * or NULL for not setup qdio devices.
+ */
+struct qdio_ssqd_desc *qdio_get_ssqd_desc(struct ccw_device *cdev)
+{
+	struct qdio_irq *irq_ptr;
+
+	QDIO_DBF_TEXT0(0, setup, "getssqd");
+
+	irq_ptr = cdev->private->qdio_data;
+	if (!irq_ptr)
+		return NULL;
+
+	return &irq_ptr->ssqd_desc;
+}
+EXPORT_SYMBOL_GPL(qdio_get_ssqd_desc);
+
+/**
+ * qdio_cleanup - shutdown queues and free data structures
+ * @cdev: associated ccw device
+ * @how: use halt or clear to shutdown
+ *
+ * This function calls qdio_shutdown() for @cdev with method @how
+ * and on success qdio_free() for @cdev.
+ */
+int qdio_cleanup(struct ccw_device *cdev, int how)
+{
+	struct qdio_irq *irq_ptr;
+	char dbf_text[15];
+	int rc;
+
+	irq_ptr = cdev->private->qdio_data;
+	if (!irq_ptr)
+		return -ENODEV;
+
+	sprintf(dbf_text, "qcln%4x", irq_ptr->schid.sch_no);
+	QDIO_DBF_TEXT1(0, trace, dbf_text);
+	QDIO_DBF_TEXT0(0, setup, dbf_text);
+
+	rc = qdio_shutdown(cdev, how);
+	if (rc == 0)
+		rc = qdio_free(cdev);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(qdio_cleanup);
+
+static void qdio_shutdown_queues(struct ccw_device *cdev)
+{
+	struct qdio_irq *irq_ptr = cdev->private->qdio_data;
+	struct qdio_q *q;
+	int i;
+
+	for_each_input_queue(irq_ptr, q, i)
+		tasklet_disable(&q->tasklet);
+
+	for_each_output_queue(irq_ptr, q, i) {
+		tasklet_disable(&q->tasklet);
+		del_timer(&q->u.out.timer);
+	}
+}
+
+/**
+ * qdio_shutdown - shut down a qdio subchannel
+ * @cdev: associated ccw device
+ * @how: use halt or clear to shutdown
+ */
+int qdio_shutdown(struct ccw_device *cdev, int how)
+{
+	struct qdio_irq *irq_ptr;
+	int rc;
+	unsigned long flags;
+	char dbf_text[15];
+
+	irq_ptr = cdev->private->qdio_data;
+	if (!irq_ptr)
+		return -ENODEV;
+
+	mutex_lock(&irq_ptr->setup_mutex);
+	/*
+	 * Subchannel was already shot down. We cannot prevent being called
+	 * twice since cio may trigger a shutdown asynchronously.
+	 */
+	if (irq_ptr->state == QDIO_IRQ_STATE_INACTIVE) {
+		mutex_unlock(&irq_ptr->setup_mutex);
+		return 0;
+	}
+
+	sprintf(dbf_text, "qsqs%4x", irq_ptr->schid.sch_no);
+	QDIO_DBF_TEXT1(0, trace, dbf_text);
+	QDIO_DBF_TEXT0(0, setup, dbf_text);
+
+	tiqdio_remove_input_queues(irq_ptr);
+	qdio_shutdown_queues(cdev);
+	qdio_shutdown_debug_entries(irq_ptr, cdev);
+
+	/* cleanup subchannel */
+	spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
+
+	if (how & QDIO_FLAG_CLEANUP_USING_CLEAR)
+		rc = ccw_device_clear(cdev, QDIO_DOING_CLEANUP);
+	else
+		/* default behaviour is halt */
+		rc = ccw_device_halt(cdev, QDIO_DOING_CLEANUP);
+	if (rc) {
+		sprintf(dbf_text, "sher%4x", irq_ptr->schid.sch_no);
+		QDIO_DBF_TEXT0(0, setup, dbf_text);
+		sprintf(dbf_text, "rc=%d", rc);
+		QDIO_DBF_TEXT0(0, setup, dbf_text);
+		goto no_cleanup;
+	}
+
+	qdio_set_state(irq_ptr, QDIO_IRQ_STATE_CLEANUP);
+	spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags);
+	wait_event_interruptible_timeout(cdev->private->wait_q,
+		irq_ptr->state == QDIO_IRQ_STATE_INACTIVE ||
+		irq_ptr->state == QDIO_IRQ_STATE_ERR,
+		10 * HZ);
+	spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
+
+no_cleanup:
+	qdio_shutdown_thinint(irq_ptr);
+
+	/* restore interrupt handler */
+	if ((void *)cdev->handler == (void *)qdio_int_handler)
+		cdev->handler = irq_ptr->orig_handler;
+	spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags);
+
+	qdio_set_state(irq_ptr, QDIO_IRQ_STATE_INACTIVE);
+	mutex_unlock(&irq_ptr->setup_mutex);
+	module_put(THIS_MODULE);
+	if (rc)
+		return rc;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(qdio_shutdown);
+
+/**
+ * qdio_free - free data structures for a qdio subchannel
+ * @cdev: associated ccw device
+ */
+int qdio_free(struct ccw_device *cdev)
+{
+	struct qdio_irq *irq_ptr;
+	char dbf_text[15];
+
+	irq_ptr = cdev->private->qdio_data;
+	if (!irq_ptr)
+		return -ENODEV;
+
+	mutex_lock(&irq_ptr->setup_mutex);
+
+	sprintf(dbf_text, "qfqs%4x", irq_ptr->schid.sch_no);
+	QDIO_DBF_TEXT1(0, trace, dbf_text);
+	QDIO_DBF_TEXT0(0, setup, dbf_text);
+
+	cdev->private->qdio_data = NULL;
+	mutex_unlock(&irq_ptr->setup_mutex);
+
+	qdio_release_memory(irq_ptr);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(qdio_free);
+
+/**
+ * qdio_initialize - allocate and establish queues for a qdio subchannel
+ * @init_data: initialization data
+ *
+ * This function first allocates queues via qdio_allocate() and on success
+ * establishes them via qdio_establish().
+ */
+int qdio_initialize(struct qdio_initialize *init_data)
+{
+	int rc;
+	char dbf_text[15];
+
+	sprintf(dbf_text, "qini%4x", init_data->cdev->private->schid.sch_no);
+	QDIO_DBF_TEXT0(0, setup, dbf_text);
+	QDIO_DBF_TEXT0(0, trace, dbf_text);
+
+	rc = qdio_allocate(init_data);
+	if (rc)
+		return rc;
+
+	rc = qdio_establish(init_data);
+	if (rc)
+		qdio_free(init_data->cdev);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(qdio_initialize);
+
+/**
+ * qdio_allocate - allocate qdio queues and associated data
+ * @init_data: initialization data
+ */
+int qdio_allocate(struct qdio_initialize *init_data)
+{
+	struct qdio_irq *irq_ptr;
+	char dbf_text[15];
+
+	sprintf(dbf_text, "qalc%4x", init_data->cdev->private->schid.sch_no);
+	QDIO_DBF_TEXT0(0, setup, dbf_text);
+	QDIO_DBF_TEXT0(0, trace, dbf_text);
+
+	if ((init_data->no_input_qs && !init_data->input_handler) ||
+	    (init_data->no_output_qs && !init_data->output_handler))
+		return -EINVAL;
+
+	if ((init_data->no_input_qs > QDIO_MAX_QUEUES_PER_IRQ) ||
+	    (init_data->no_output_qs > QDIO_MAX_QUEUES_PER_IRQ))
+		return -EINVAL;
+
+	if ((!init_data->input_sbal_addr_array) ||
+	    (!init_data->output_sbal_addr_array))
+		return -EINVAL;
+
+	qdio_allocate_do_dbf(init_data);
+
+	/* irq_ptr must be in GFP_DMA since it contains ccw1.cda */
+	irq_ptr = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
+	if (!irq_ptr)
+		goto out_err;
+	QDIO_DBF_TEXT0(0, setup, "irq_ptr:");
+	QDIO_DBF_HEX0(0, setup, &irq_ptr, sizeof(void *));
+
+	mutex_init(&irq_ptr->setup_mutex);
+
+	/*
+	 * Allocate a page for the chsc calls in qdio_establish.
+	 * Must be pre-allocated since a zfcp recovery will call
+	 * qdio_establish. In case of low memory and swap on a zfcp disk
+	 * we may not be able to allocate memory otherwise.
+	 */
+	irq_ptr->chsc_page = get_zeroed_page(GFP_KERNEL);
+	if (!irq_ptr->chsc_page)
+		goto out_rel;
+
+	/* qdr is used in ccw1.cda which is u32 */
+	irq_ptr->qdr = kzalloc(sizeof(struct qdr), GFP_KERNEL | GFP_DMA);
+	if (!irq_ptr->qdr)
+		goto out_rel;
+	WARN_ON((unsigned long)irq_ptr->qdr & 0xfff);
+
+	QDIO_DBF_TEXT0(0, setup, "qdr:");
+	QDIO_DBF_HEX0(0, setup, &irq_ptr->qdr, sizeof(void *));
+
+	if (qdio_allocate_qs(irq_ptr, init_data->no_input_qs,
+			     init_data->no_output_qs))
+		goto out_rel;
+
+	init_data->cdev->private->qdio_data = irq_ptr;
+	qdio_set_state(irq_ptr, QDIO_IRQ_STATE_INACTIVE);
+	return 0;
+out_rel:
+	qdio_release_memory(irq_ptr);
+out_err:
+	return -ENOMEM;
+}
+EXPORT_SYMBOL_GPL(qdio_allocate);
+
+/**
+ * qdio_establish - establish queues on a qdio subchannel
+ * @init_data: initialization data
+ */
+int qdio_establish(struct qdio_initialize *init_data)
+{
+	char dbf_text[20];
+	struct qdio_irq *irq_ptr;
+	struct ccw_device *cdev = init_data->cdev;
+	unsigned long saveflags;
+	int rc;
+
+	irq_ptr = cdev->private->qdio_data;
+	if (!irq_ptr)
+		return -ENODEV;
+
+	if (cdev->private->state != DEV_STATE_ONLINE)
+		return -EINVAL;
+
+	if (!try_module_get(THIS_MODULE))
+		return -EINVAL;
+
+	sprintf(dbf_text, "qest%4x", cdev->private->schid.sch_no);
+	QDIO_DBF_TEXT0(0, setup, dbf_text);
+	QDIO_DBF_TEXT0(0, trace, dbf_text);
+
+	mutex_lock(&irq_ptr->setup_mutex);
+	qdio_setup_irq(init_data);
+
+	rc = qdio_establish_thinint(irq_ptr);
+	if (rc) {
+		mutex_unlock(&irq_ptr->setup_mutex);
+		qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR);
+		return rc;
+	}
+
+	/* establish q */
+	irq_ptr->ccw.cmd_code = irq_ptr->equeue.cmd;
+	irq_ptr->ccw.flags = CCW_FLAG_SLI;
+	irq_ptr->ccw.count = irq_ptr->equeue.count;
+	irq_ptr->ccw.cda = (u32)((addr_t)irq_ptr->qdr);
+
+	spin_lock_irqsave(get_ccwdev_lock(cdev), saveflags);
+	ccw_device_set_options_mask(cdev, 0);
+
+	rc = ccw_device_start(cdev, &irq_ptr->ccw, QDIO_DOING_ESTABLISH, 0, 0);
+	if (rc) {
+		sprintf(dbf_text, "eq:io%4x", irq_ptr->schid.sch_no);
+		QDIO_DBF_TEXT2(1, setup, dbf_text);
+		sprintf(dbf_text, "eq:rc%4x", rc);
+		QDIO_DBF_TEXT2(1, setup, dbf_text);
+	}
+	spin_unlock_irqrestore(get_ccwdev_lock(cdev), saveflags);
+
+	if (rc) {
+		mutex_unlock(&irq_ptr->setup_mutex);
+		qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR);
+		return rc;
+	}
+
+	wait_event_interruptible_timeout(cdev->private->wait_q,
+		irq_ptr->state == QDIO_IRQ_STATE_ESTABLISHED ||
+		irq_ptr->state == QDIO_IRQ_STATE_ERR, HZ);
+
+	if (irq_ptr->state != QDIO_IRQ_STATE_ESTABLISHED) {
+		mutex_unlock(&irq_ptr->setup_mutex);
+		qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR);
+		return -EIO;
+	}
+
+	qdio_setup_ssqd_info(irq_ptr);
+	sprintf(dbf_text, "qib ac%2x", irq_ptr->qib.ac);
+	QDIO_DBF_TEXT2(0, setup, dbf_text);
+
+	/* qebsm is now setup if available, initialize buffer states */
+	qdio_init_buf_states(irq_ptr);
+
+	mutex_unlock(&irq_ptr->setup_mutex);
+	qdio_print_subchannel_info(irq_ptr, cdev);
+	qdio_setup_debug_entries(irq_ptr, cdev);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(qdio_establish);
+
+/**
+ * qdio_activate - activate queues on a qdio subchannel
+ * @cdev: associated cdev
+ */
+int qdio_activate(struct ccw_device *cdev)
+{
+	struct qdio_irq *irq_ptr;
+	int rc;
+	unsigned long saveflags;
+	char dbf_text[20];
+
+	irq_ptr = cdev->private->qdio_data;
+	if (!irq_ptr)
+		return -ENODEV;
+
+	if (cdev->private->state != DEV_STATE_ONLINE)
+		return -EINVAL;
+
+	mutex_lock(&irq_ptr->setup_mutex);
+	if (irq_ptr->state == QDIO_IRQ_STATE_INACTIVE) {
+		rc = -EBUSY;
+		goto out;
+	}
+
+	sprintf(dbf_text, "qact%4x", irq_ptr->schid.sch_no);
+	QDIO_DBF_TEXT2(0, setup, dbf_text);
+	QDIO_DBF_TEXT2(0, trace, dbf_text);
+
+	irq_ptr->ccw.cmd_code = irq_ptr->aqueue.cmd;
+	irq_ptr->ccw.flags = CCW_FLAG_SLI;
+	irq_ptr->ccw.count = irq_ptr->aqueue.count;
+	irq_ptr->ccw.cda = 0;
+
+	spin_lock_irqsave(get_ccwdev_lock(cdev), saveflags);
+	ccw_device_set_options(cdev, CCWDEV_REPORT_ALL);
+
+	rc = ccw_device_start(cdev, &irq_ptr->ccw, QDIO_DOING_ACTIVATE,
+			      0, DOIO_DENY_PREFETCH);
+	if (rc) {
+		sprintf(dbf_text, "aq:io%4x", irq_ptr->schid.sch_no);
+		QDIO_DBF_TEXT2(1, setup, dbf_text);
+		sprintf(dbf_text, "aq:rc%4x", rc);
+		QDIO_DBF_TEXT2(1, setup, dbf_text);
+	}
+	spin_unlock_irqrestore(get_ccwdev_lock(cdev), saveflags);
+
+	if (rc)
+		goto out;
+
+	if (is_thinint_irq(irq_ptr))
+		tiqdio_add_input_queues(irq_ptr);
+
+	/* wait for subchannel to become active */
+	msleep(5);
+
+	switch (irq_ptr->state) {
+	case QDIO_IRQ_STATE_STOPPED:
+	case QDIO_IRQ_STATE_ERR:
+		mutex_unlock(&irq_ptr->setup_mutex);
+		qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR);
+		return -EIO;
+	default:
+		qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ACTIVE);
+		rc = 0;
+	}
+out:
+	mutex_unlock(&irq_ptr->setup_mutex);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(qdio_activate);
+
+static inline int buf_in_between(int bufnr, int start, int count)
+{
+	int end = add_buf(start, count);
+
+	if (end > start) {
+		if (bufnr >= start && bufnr < end)
+			return 1;
+		else
+			return 0;
+	}
+
+	/* wrap-around case */
+	if ((bufnr >= start && bufnr <= QDIO_MAX_BUFFERS_PER_Q) ||
+	    (bufnr < end))
+		return 1;
+	else
+		return 0;
+}
+
+/**
+ * handle_inbound - reset processed input buffers
+ * @q: queue containing the buffers
+ * @callflags: flags
+ * @bufnr: first buffer to process
+ * @count: how many buffers are emptied
+ */
+static void handle_inbound(struct qdio_q *q, unsigned int callflags,
+			   int bufnr, int count)
+{
+	unsigned long flags;
+	int used, rc;
+
+	/*
+	 * do_QDIO could run in parallel with the queue tasklet so the
+	 * upper-layer programm could empty the ACK'ed buffer here.
+	 * If that happens we must clear the polling flag, otherwise
+	 * qdio_stop_polling() could set the buffer to NOT_INIT after
+	 * it was set to EMPTY which would kill us.
+	 */
+	spin_lock_irqsave(&q->u.in.lock, flags);
+	if (q->u.in.polling)
+		if (buf_in_between(q->last_move_ftc, bufnr, count))
+			q->u.in.polling = 0;
+
+	count = set_buf_states(q, bufnr, SLSB_CU_INPUT_EMPTY, count);
+	spin_unlock_irqrestore(&q->u.in.lock, flags);
+
+	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;
+
+	if (need_siga_in(q)) {
+		rc = qdio_siga_input(q);
+		if (rc)
+			q->qdio_error = rc;
+	}
+}
+
+/**
+ * handle_outbound - process filled outbound buffers
+ * @q: queue containing the buffers
+ * @callflags: flags
+ * @bufnr: first buffer to process
+ * @count: how many buffers are filled
+ */
+static void handle_outbound(struct qdio_q *q, unsigned int callflags,
+			    int bufnr, int count)
+{
+	unsigned char state;
+	int used;
+
+	qdio_perf_stat_inc(&perf_stats.outbound_handler);
+
+	count = set_buf_states(q, bufnr, SLSB_CU_OUTPUT_PRIMED, count);
+	used = atomic_add_return(count, &q->nr_buf_used);
+	BUG_ON(used > QDIO_MAX_BUFFERS_PER_Q);
+
+	if (callflags & QDIO_FLAG_PCI_OUT)
+		q->u.out.pci_out_enabled = 1;
+	else
+		q->u.out.pci_out_enabled = 0;
+
+	if (queue_type(q) == QDIO_IQDIO_QFMT) {
+		if (multicast_outbound(q))
+			qdio_kick_outbound_q(q);
+		else
+			/*
+			 * One siga-w per buffer required for unicast
+			 * HiperSockets.
+			 */
+			while (count--)
+				qdio_kick_outbound_q(q);
+		goto out;
+	}
+
+	if (need_siga_sync(q)) {
+		qdio_siga_sync_q(q);
+		goto out;
+	}
+
+	/* try to fast requeue buffers */
+	get_buf_state(q, prev_buf(bufnr), &state);
+	if (state != SLSB_CU_OUTPUT_PRIMED)
+		qdio_kick_outbound_q(q);
+	else {
+		QDIO_DBF_TEXT5(0, trace, "fast-req");
+		qdio_perf_stat_inc(&perf_stats.fast_requeue);
+	}
+out:
+	/* Fixme: could wait forever if called from process context */
+	tasklet_schedule(&q->tasklet);
+}
+
+/**
+ * do_QDIO - process input or output buffers
+ * @cdev: associated ccw_device for the qdio subchannel
+ * @callflags: input or output and special flags from the program
+ * @q_nr: queue number
+ * @bufnr: buffer number
+ * @count: how many buffers to process
+ */
+int do_QDIO(struct ccw_device *cdev, unsigned int callflags,
+	    int q_nr, int bufnr, int count)
+{
+	struct qdio_irq *irq_ptr;
+#ifdef CONFIG_QDIO_DEBUG
+	char dbf_text[20];
+
+	sprintf(dbf_text, "doQD%04x", cdev->private->schid.sch_no);
+	QDIO_DBF_TEXT3(0, trace, dbf_text);
+#endif /* CONFIG_QDIO_DEBUG */
+
+	if ((bufnr > QDIO_MAX_BUFFERS_PER_Q) ||
+	    (count > QDIO_MAX_BUFFERS_PER_Q) ||
+	    (q_nr > QDIO_MAX_QUEUES_PER_IRQ))
+		return -EINVAL;
+
+	if (!count)
+		return 0;
+
+	irq_ptr = cdev->private->qdio_data;
+	if (!irq_ptr)
+		return -ENODEV;
+
+#ifdef CONFIG_QDIO_DEBUG
+	if (callflags & QDIO_FLAG_SYNC_INPUT)
+		QDIO_DBF_HEX3(0, trace, &irq_ptr->input_qs[q_nr],
+			      sizeof(void *));
+	else
+		QDIO_DBF_HEX3(0, trace, &irq_ptr->output_qs[q_nr],
+			      sizeof(void *));
+
+	sprintf(dbf_text, "flag%04x", callflags);
+	QDIO_DBF_TEXT3(0, trace, dbf_text);
+	sprintf(dbf_text, "qi%02xct%02x", bufnr, count);
+	QDIO_DBF_TEXT3(0, trace, dbf_text);
+#endif /* CONFIG_QDIO_DEBUG */
+
+	if (irq_ptr->state != QDIO_IRQ_STATE_ACTIVE)
+		return -EBUSY;
+
+	if (callflags & QDIO_FLAG_SYNC_INPUT)
+		handle_inbound(irq_ptr->input_qs[q_nr],
+			       callflags, bufnr, count);
+	else if (callflags & QDIO_FLAG_SYNC_OUTPUT)
+		handle_outbound(irq_ptr->output_qs[q_nr],
+				callflags, bufnr, count);
+	else {
+		QDIO_DBF_TEXT3(1, trace, "doQD:inv");
+		return -EINVAL;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(do_QDIO);
+
+static int __init init_QDIO(void)
+{
+	int rc;
+
+	rc = qdio_setup_init();
+	if (rc)
+		return rc;
+	rc = tiqdio_allocate_memory();
+	if (rc)
+		goto out_cache;
+	rc = qdio_debug_init();
+	if (rc)
+		goto out_ti;
+	rc = qdio_setup_perf_stats();
+	if (rc)
+		goto out_debug;
+	rc = tiqdio_register_thinints();
+	if (rc)
+		goto out_perf;
+	return 0;
+
+out_perf:
+	qdio_remove_perf_stats();
+out_debug:
+	qdio_debug_exit();
+out_ti:
+	tiqdio_free_memory();
+out_cache:
+	qdio_setup_exit();
+	return rc;
+}
+
+static void __exit exit_QDIO(void)
+{
+	tiqdio_unregister_thinints();
+	tiqdio_free_memory();
+	qdio_remove_perf_stats();
+	qdio_debug_exit();
+	qdio_setup_exit();
+}
+
+module_init(init_QDIO);
+module_exit(exit_QDIO);
diff --git a/drivers/s390/cio/qdio_perf.c b/drivers/s390/cio/qdio_perf.c
new file mode 100644
index 0000000..ea01b85
--- /dev/null
+++ b/drivers/s390/cio/qdio_perf.c
@@ -0,0 +1,151 @@
+/*
+ *  drivers/s390/cio/qdio_perf.c
+ *
+ *  Copyright IBM Corp. 2008
+ *
+ *  Author: Jan Glauber (jang@linux.vnet.ibm.com)
+ */
+#include <linux/kernel.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <asm/ccwdev.h>
+
+#include "cio.h"
+#include "css.h"
+#include "device.h"
+#include "ioasm.h"
+#include "chsc.h"
+#include "qdio_debug.h"
+#include "qdio_perf.h"
+
+int qdio_performance_stats;
+struct qdio_perf_stats perf_stats;
+
+#ifdef CONFIG_PROC_FS
+static struct proc_dir_entry *qdio_perf_pde;
+#endif
+
+inline void qdio_perf_stat_inc(atomic_long_t *count)
+{
+	if (qdio_performance_stats)
+		atomic_long_inc(count);
+}
+
+inline void qdio_perf_stat_dec(atomic_long_t *count)
+{
+	if (qdio_performance_stats)
+		atomic_long_dec(count);
+}
+
+/*
+ * procfs functions
+ */
+static int qdio_perf_proc_show(struct seq_file *m, void *v)
+{
+	seq_printf(m, "Number of qdio interrupts\t\t\t: %li\n",
+		   (long)atomic_long_read(&perf_stats.qdio_int));
+	seq_printf(m, "Number of PCI interrupts\t\t\t: %li\n",
+		   (long)atomic_long_read(&perf_stats.pci_int));
+	seq_printf(m, "Number of adapter interrupts\t\t\t: %li\n",
+		   (long)atomic_long_read(&perf_stats.thin_int));
+	seq_printf(m, "\n");
+	seq_printf(m, "Inbound tasklet runs\t\t\t\t: %li\n",
+		   (long)atomic_long_read(&perf_stats.tasklet_inbound));
+	seq_printf(m, "Outbound tasklet runs\t\t\t\t: %li\n",
+		   (long)atomic_long_read(&perf_stats.tasklet_outbound));
+	seq_printf(m, "Adapter interrupt tasklet runs/loops\t\t: %li/%li\n",
+		   (long)atomic_long_read(&perf_stats.tasklet_thinint),
+		   (long)atomic_long_read(&perf_stats.tasklet_thinint_loop));
+	seq_printf(m, "Adapter interrupt inbound tasklet runs/loops\t: %li/%li\n",
+		   (long)atomic_long_read(&perf_stats.thinint_inbound),
+		   (long)atomic_long_read(&perf_stats.thinint_inbound_loop));
+	seq_printf(m, "\n");
+	seq_printf(m, "Number of SIGA In issued\t\t\t: %li\n",
+		   (long)atomic_long_read(&perf_stats.siga_in));
+	seq_printf(m, "Number of SIGA Out issued\t\t\t: %li\n",
+		   (long)atomic_long_read(&perf_stats.siga_out));
+	seq_printf(m, "Number of SIGA Sync issued\t\t\t: %li\n",
+		   (long)atomic_long_read(&perf_stats.siga_sync));
+	seq_printf(m, "\n");
+	seq_printf(m, "Number of inbound transfers\t\t\t: %li\n",
+		   (long)atomic_long_read(&perf_stats.inbound_handler));
+	seq_printf(m, "Number of outbound transfers\t\t\t: %li\n",
+		   (long)atomic_long_read(&perf_stats.outbound_handler));
+	seq_printf(m, "\n");
+	seq_printf(m, "Number of fast requeues (outg. SBAL w/o SIGA)\t: %li\n",
+		   (long)atomic_long_read(&perf_stats.fast_requeue));
+	seq_printf(m, "Number of outbound tasklet mod_timer calls\t: %li\n",
+		   (long)atomic_long_read(&perf_stats.debug_tl_out_timer));
+	seq_printf(m, "Number of stop polling calls\t\t\t: %li\n",
+		   (long)atomic_long_read(&perf_stats.debug_stop_polling));
+	seq_printf(m, "AI inbound tasklet loops after stop polling\t: %li\n",
+		   (long)atomic_long_read(&perf_stats.thinint_inbound_loop2));
+	seq_printf(m, "\n");
+	return 0;
+}
+static int qdio_perf_seq_open(struct inode *inode, struct file *filp)
+{
+	return single_open(filp, qdio_perf_proc_show, NULL);
+}
+
+static struct file_operations qdio_perf_proc_fops = {
+	.owner	 = THIS_MODULE,
+	.open	 = qdio_perf_seq_open,
+	.read	 = seq_read,
+	.llseek  = seq_lseek,
+	.release = single_release,
+};
+
+/*
+ * sysfs functions
+ */
+static ssize_t qdio_perf_stats_show(struct bus_type *bus, char *buf)
+{
+	return sprintf(buf, "%i\n", qdio_performance_stats ? 1 : 0);
+}
+
+static ssize_t qdio_perf_stats_store(struct bus_type *bus,
+			      const char *buf, size_t count)
+{
+	unsigned long i;
+
+	if (strict_strtoul(buf, 16, &i) != 0)
+		return -EINVAL;
+	if ((i != 0) && (i != 1))
+		return -EINVAL;
+	if (i == qdio_performance_stats)
+		return count;
+
+	qdio_performance_stats = i;
+	/* reset performance statistics */
+	if (i == 0)
+		memset(&perf_stats, 0, sizeof(struct qdio_perf_stats));
+	return count;
+}
+
+static BUS_ATTR(qdio_performance_stats, 0644, qdio_perf_stats_show,
+		qdio_perf_stats_store);
+
+int __init qdio_setup_perf_stats(void)
+{
+	int rc;
+
+	rc = bus_create_file(&ccw_bus_type, &bus_attr_qdio_performance_stats);
+	if (rc)
+		return rc;
+
+#ifdef CONFIG_PROC_FS
+	memset(&perf_stats, 0, sizeof(struct qdio_perf_stats));
+	qdio_perf_pde = proc_create("qdio_perf", S_IFREG | S_IRUGO,
+				    NULL, &qdio_perf_proc_fops);
+#endif
+	return 0;
+}
+
+void __exit qdio_remove_perf_stats(void)
+{
+#ifdef CONFIG_PROC_FS
+	remove_proc_entry("qdio_perf", NULL);
+#endif
+	bus_remove_file(&ccw_bus_type, &bus_attr_qdio_performance_stats);
+}
diff --git a/drivers/s390/cio/qdio_perf.h b/drivers/s390/cio/qdio_perf.h
new file mode 100644
index 0000000..5c406a8
--- /dev/null
+++ b/drivers/s390/cio/qdio_perf.h
@@ -0,0 +1,54 @@
+/*
+ *  drivers/s390/cio/qdio_perf.h
+ *
+ *  Copyright IBM Corp. 2008
+ *
+ *  Author: Jan Glauber (jang@linux.vnet.ibm.com)
+ */
+#ifndef QDIO_PERF_H
+#define QDIO_PERF_H
+
+#include <linux/types.h>
+#include <linux/device.h>
+#include <asm/atomic.h>
+
+struct qdio_perf_stats {
+	/* interrupt handler calls */
+	atomic_long_t qdio_int;
+	atomic_long_t pci_int;
+	atomic_long_t thin_int;
+
+	/* tasklet runs */
+	atomic_long_t tasklet_inbound;
+	atomic_long_t tasklet_outbound;
+	atomic_long_t tasklet_thinint;
+	atomic_long_t tasklet_thinint_loop;
+	atomic_long_t thinint_inbound;
+	atomic_long_t thinint_inbound_loop;
+	atomic_long_t thinint_inbound_loop2;
+
+	/* signal adapter calls */
+	atomic_long_t siga_out;
+	atomic_long_t siga_in;
+	atomic_long_t siga_sync;
+
+	/* misc */
+	atomic_long_t inbound_handler;
+	atomic_long_t outbound_handler;
+	atomic_long_t fast_requeue;
+
+	/* for debugging */
+	atomic_long_t debug_tl_out_timer;
+	atomic_long_t debug_stop_polling;
+};
+
+extern struct qdio_perf_stats perf_stats;
+extern int qdio_performance_stats;
+
+int qdio_setup_perf_stats(void);
+void qdio_remove_perf_stats(void);
+
+extern void qdio_perf_stat_inc(atomic_long_t *count);
+extern void qdio_perf_stat_dec(atomic_long_t *count);
+
+#endif
diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c
new file mode 100644
index 0000000..f0923a8
--- /dev/null
+++ b/drivers/s390/cio/qdio_setup.c
@@ -0,0 +1,521 @@
+/*
+ * driver/s390/cio/qdio_setup.c
+ *
+ * qdio queue initialization
+ *
+ * Copyright (C) IBM Corp. 2008
+ * Author(s): Jan Glauber <jang@linux.vnet.ibm.com>
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <asm/qdio.h>
+
+#include "cio.h"
+#include "css.h"
+#include "device.h"
+#include "ioasm.h"
+#include "chsc.h"
+#include "qdio.h"
+#include "qdio_debug.h"
+
+static struct kmem_cache *qdio_q_cache;
+
+/*
+ * qebsm is only available under 64bit but the adapter sets the feature
+ * flag anyway, so we manually override it.
+ */
+static inline int qebsm_possible(void)
+{
+#ifdef CONFIG_64BIT
+	return css_general_characteristics.qebsm;
+#endif
+	return 0;
+}
+
+/*
+ * qib_param_field: pointer to 128 bytes or NULL, if no param field
+ * nr_input_qs: pointer to nr_queues*128 words of data or NULL
+ */
+static void set_impl_params(struct qdio_irq *irq_ptr,
+			    unsigned int qib_param_field_format,
+			    unsigned char *qib_param_field,
+			    unsigned long *input_slib_elements,
+			    unsigned long *output_slib_elements)
+{
+	struct qdio_q *q;
+	int i, j;
+
+	if (!irq_ptr)
+		return;
+
+	WARN_ON((unsigned long)&irq_ptr->qib & 0xff);
+	irq_ptr->qib.pfmt = qib_param_field_format;
+	if (qib_param_field)
+		memcpy(irq_ptr->qib.parm, qib_param_field,
+		       QDIO_MAX_BUFFERS_PER_Q);
+
+	if (!input_slib_elements)
+		goto output;
+
+	for_each_input_queue(irq_ptr, q, i) {
+		for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++)
+			q->slib->slibe[j].parms =
+				input_slib_elements[i * QDIO_MAX_BUFFERS_PER_Q + j];
+	}
+output:
+	if (!output_slib_elements)
+		return;
+
+	for_each_output_queue(irq_ptr, q, i) {
+		for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++)
+			q->slib->slibe[j].parms =
+				output_slib_elements[i * QDIO_MAX_BUFFERS_PER_Q + j];
+	}
+}
+
+static int __qdio_allocate_qs(struct qdio_q **irq_ptr_qs, int nr_queues)
+{
+	struct qdio_q *q;
+	int i;
+
+	for (i = 0; i < nr_queues; i++) {
+		q = kmem_cache_alloc(qdio_q_cache, GFP_KERNEL);
+		if (!q)
+			return -ENOMEM;
+		WARN_ON((unsigned long)q & 0xff);
+
+		q->slib = (struct slib *) __get_free_page(GFP_KERNEL);
+		if (!q->slib) {
+			kmem_cache_free(qdio_q_cache, q);
+			return -ENOMEM;
+		}
+		WARN_ON((unsigned long)q->slib & 0x7ff);
+		irq_ptr_qs[i] = q;
+	}
+	return 0;
+}
+
+int qdio_allocate_qs(struct qdio_irq *irq_ptr, int nr_input_qs, int nr_output_qs)
+{
+	int rc;
+
+	rc = __qdio_allocate_qs(irq_ptr->input_qs, nr_input_qs);
+	if (rc)
+		return rc;
+	rc = __qdio_allocate_qs(irq_ptr->output_qs, nr_output_qs);
+	return rc;
+}
+
+static void setup_queues_misc(struct qdio_q *q, struct qdio_irq *irq_ptr,
+			      qdio_handler_t *handler, int i)
+{
+	/* must be cleared by every qdio_establish */
+	memset(q, 0, ((char *)&q->slib) - ((char *)q));
+	memset(q->slib, 0, PAGE_SIZE);
+
+	q->irq_ptr = irq_ptr;
+	q->mask = 1 << (31 - i);
+	q->nr = i;
+	q->handler = handler;
+}
+
+static void setup_storage_lists(struct qdio_q *q, struct qdio_irq *irq_ptr,
+				void **sbals_array, char *dbf_text, int i)
+{
+	struct qdio_q *prev;
+	int j;
+
+	QDIO_DBF_TEXT0(0, setup, dbf_text);
+	QDIO_DBF_HEX0(0, setup, &q, sizeof(void *));
+
+	q->sl = (struct sl *)((char *)q->slib + PAGE_SIZE / 2);
+
+	/* fill in sbal */
+	for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++) {
+		q->sbal[j] = *sbals_array++;
+		WARN_ON((unsigned long)q->sbal[j] & 0xff);
+	}
+
+	/* fill in slib */
+	if (i > 0) {
+		prev = (q->is_input_q) ? irq_ptr->input_qs[i - 1]
+			: irq_ptr->output_qs[i - 1];
+		prev->slib->nsliba = (unsigned long)q->slib;
+	}
+
+	q->slib->sla = (unsigned long)q->sl;
+	q->slib->slsba = (unsigned long)&q->slsb.val[0];
+
+	/* fill in sl */
+	for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++)
+		q->sl->element[j].sbal = (unsigned long)q->sbal[j];
+
+	QDIO_DBF_TEXT2(0, setup, "sl-sb-b0");
+	QDIO_DBF_HEX2(0, setup, q->sl, sizeof(void *));
+	QDIO_DBF_HEX2(0, setup, &q->slsb, sizeof(void *));
+	QDIO_DBF_HEX2(0, setup, q->sbal, sizeof(void *));
+}
+
+static void setup_queues(struct qdio_irq *irq_ptr,
+			 struct qdio_initialize *qdio_init)
+{
+	char dbf_text[20];
+	struct qdio_q *q;
+	void **input_sbal_array = qdio_init->input_sbal_addr_array;
+	void **output_sbal_array = qdio_init->output_sbal_addr_array;
+	int i;
+
+	sprintf(dbf_text, "qfqs%4x", qdio_init->cdev->private->schid.sch_no);
+	QDIO_DBF_TEXT0(0, setup, dbf_text);
+
+	for_each_input_queue(irq_ptr, q, i) {
+		sprintf(dbf_text, "in-q%4x", i);
+		setup_queues_misc(q, irq_ptr, qdio_init->input_handler, i);
+
+		q->is_input_q = 1;
+		spin_lock_init(&q->u.in.lock);
+		setup_storage_lists(q, irq_ptr, input_sbal_array, dbf_text, i);
+		input_sbal_array += QDIO_MAX_BUFFERS_PER_Q;
+
+		if (is_thinint_irq(irq_ptr))
+			tasklet_init(&q->tasklet, tiqdio_inbound_processing,
+				     (unsigned long) q);
+		else
+			tasklet_init(&q->tasklet, qdio_inbound_processing,
+				     (unsigned long) q);
+	}
+
+	for_each_output_queue(irq_ptr, q, i) {
+		sprintf(dbf_text, "outq%4x", i);
+		setup_queues_misc(q, irq_ptr, qdio_init->output_handler, i);
+
+		q->is_input_q = 0;
+		setup_storage_lists(q, irq_ptr, output_sbal_array,
+				    dbf_text, i);
+		output_sbal_array += QDIO_MAX_BUFFERS_PER_Q;
+
+		tasklet_init(&q->tasklet, qdio_outbound_processing,
+			     (unsigned long) q);
+		setup_timer(&q->u.out.timer, (void(*)(unsigned long))
+			    &qdio_outbound_timer, (unsigned long)q);
+	}
+}
+
+static void process_ac_flags(struct qdio_irq *irq_ptr, unsigned char qdioac)
+{
+	if (qdioac & AC1_SIGA_INPUT_NEEDED)
+		irq_ptr->siga_flag.input = 1;
+	if (qdioac & AC1_SIGA_OUTPUT_NEEDED)
+		irq_ptr->siga_flag.output = 1;
+	if (qdioac & AC1_SIGA_SYNC_NEEDED)
+		irq_ptr->siga_flag.sync = 1;
+	if (qdioac & AC1_AUTOMATIC_SYNC_ON_THININT)
+		irq_ptr->siga_flag.no_sync_ti = 1;
+	if (qdioac & AC1_AUTOMATIC_SYNC_ON_OUT_PCI)
+		irq_ptr->siga_flag.no_sync_out_pci = 1;
+
+	if (irq_ptr->siga_flag.no_sync_out_pci &&
+	    irq_ptr->siga_flag.no_sync_ti)
+		irq_ptr->siga_flag.no_sync_out_ti = 1;
+}
+
+static void check_and_setup_qebsm(struct qdio_irq *irq_ptr,
+				  unsigned char qdioac, unsigned long token)
+{
+	char dbf_text[15];
+
+	if (!(irq_ptr->qib.rflags & QIB_RFLAGS_ENABLE_QEBSM))
+		goto no_qebsm;
+	if (!(qdioac & AC1_SC_QEBSM_AVAILABLE) ||
+	    (!(qdioac & AC1_SC_QEBSM_ENABLED)))
+		goto no_qebsm;
+
+	irq_ptr->sch_token = token;
+
+	QDIO_DBF_TEXT0(0, setup, "V=V:1");
+	sprintf(dbf_text, "%8lx", irq_ptr->sch_token);
+	QDIO_DBF_TEXT0(0, setup, dbf_text);
+	return;
+
+no_qebsm:
+	irq_ptr->sch_token = 0;
+	irq_ptr->qib.rflags &= ~QIB_RFLAGS_ENABLE_QEBSM;
+	QDIO_DBF_TEXT0(0, setup, "noV=V");
+}
+
+static int __get_ssqd_info(struct qdio_irq *irq_ptr)
+{
+	struct chsc_ssqd_area *ssqd;
+	int rc;
+
+	QDIO_DBF_TEXT0(0, setup, "getssqd");
+	ssqd = (struct chsc_ssqd_area *)irq_ptr->chsc_page;
+	memset(ssqd, 0, PAGE_SIZE);
+
+	ssqd->request = (struct chsc_header) {
+		.length = 0x0010,
+		.code	= 0x0024,
+	};
+	ssqd->first_sch = irq_ptr->schid.sch_no;
+	ssqd->last_sch = irq_ptr->schid.sch_no;
+	ssqd->ssid = irq_ptr->schid.ssid;
+
+	if (chsc(ssqd))
+		return -EIO;
+	rc = chsc_error_from_response(ssqd->response.code);
+	if (rc)
+		return rc;
+
+	if (!(ssqd->qdio_ssqd.flags & CHSC_FLAG_QDIO_CAPABILITY) ||
+	    !(ssqd->qdio_ssqd.flags & CHSC_FLAG_VALIDITY) ||
+	    (ssqd->qdio_ssqd.sch != irq_ptr->schid.sch_no))
+		return -EINVAL;
+
+	memcpy(&irq_ptr->ssqd_desc, &ssqd->qdio_ssqd,
+	       sizeof(struct qdio_ssqd_desc));
+	return 0;
+}
+
+void qdio_setup_ssqd_info(struct qdio_irq *irq_ptr)
+{
+	unsigned char qdioac;
+	char dbf_text[15];
+	int rc;
+
+	rc = __get_ssqd_info(irq_ptr);
+	if (rc) {
+		QDIO_DBF_TEXT2(0, setup, "ssqdasig");
+		sprintf(dbf_text, "schno%x", irq_ptr->schid.sch_no);
+		QDIO_DBF_TEXT2(0, setup, dbf_text);
+		sprintf(dbf_text, "rc:%d", rc);
+		QDIO_DBF_TEXT2(0, setup, dbf_text);
+		/* all flags set, worst case */
+		qdioac = AC1_SIGA_INPUT_NEEDED | AC1_SIGA_OUTPUT_NEEDED |
+			 AC1_SIGA_SYNC_NEEDED;
+	} else
+		qdioac = irq_ptr->ssqd_desc.qdioac1;
+
+	check_and_setup_qebsm(irq_ptr, qdioac, irq_ptr->ssqd_desc.sch_token);
+	process_ac_flags(irq_ptr, qdioac);
+
+	sprintf(dbf_text, "qdioac%2x", qdioac);
+	QDIO_DBF_TEXT2(0, setup, dbf_text);
+}
+
+void qdio_release_memory(struct qdio_irq *irq_ptr)
+{
+	struct qdio_q *q;
+	int i;
+
+	/*
+	 * Must check queue array manually since irq_ptr->nr_input_queues /
+	 * irq_ptr->nr_input_queues may not yet be set.
+	 */
+	for (i = 0; i < QDIO_MAX_QUEUES_PER_IRQ; i++) {
+		q = irq_ptr->input_qs[i];
+		if (q) {
+			free_page((unsigned long) q->slib);
+			kmem_cache_free(qdio_q_cache, q);
+		}
+	}
+	for (i = 0; i < QDIO_MAX_QUEUES_PER_IRQ; i++) {
+		q = irq_ptr->output_qs[i];
+		if (q) {
+			free_page((unsigned long) q->slib);
+			kmem_cache_free(qdio_q_cache, q);
+		}
+	}
+	kfree(irq_ptr->qdr);
+	free_page(irq_ptr->chsc_page);
+	free_page((unsigned long) irq_ptr);
+}
+
+static void __qdio_allocate_fill_qdr(struct qdio_irq *irq_ptr,
+				     struct qdio_q **irq_ptr_qs,
+				     int i, int nr)
+{
+	irq_ptr->qdr->qdf0[i + nr].sliba =
+		(unsigned long)irq_ptr_qs[i]->slib;
+
+	irq_ptr->qdr->qdf0[i + nr].sla =
+		(unsigned long)irq_ptr_qs[i]->sl;
+
+	irq_ptr->qdr->qdf0[i + nr].slsba =
+		(unsigned long)&irq_ptr_qs[i]->slsb.val[0];
+
+	irq_ptr->qdr->qdf0[i + nr].akey = PAGE_DEFAULT_KEY;
+	irq_ptr->qdr->qdf0[i + nr].bkey = PAGE_DEFAULT_KEY;
+	irq_ptr->qdr->qdf0[i + nr].ckey = PAGE_DEFAULT_KEY;
+	irq_ptr->qdr->qdf0[i + nr].dkey = PAGE_DEFAULT_KEY;
+}
+
+static void setup_qdr(struct qdio_irq *irq_ptr,
+		      struct qdio_initialize *qdio_init)
+{
+	int i;
+
+	irq_ptr->qdr->qfmt = qdio_init->q_format;
+	irq_ptr->qdr->iqdcnt = qdio_init->no_input_qs;
+	irq_ptr->qdr->oqdcnt = qdio_init->no_output_qs;
+	irq_ptr->qdr->iqdsz = sizeof(struct qdesfmt0) / 4; /* size in words */
+	irq_ptr->qdr->oqdsz = sizeof(struct qdesfmt0) / 4;
+	irq_ptr->qdr->qiba = (unsigned long)&irq_ptr->qib;
+	irq_ptr->qdr->qkey = PAGE_DEFAULT_KEY;
+
+	for (i = 0; i < qdio_init->no_input_qs; i++)
+		__qdio_allocate_fill_qdr(irq_ptr, irq_ptr->input_qs, i, 0);
+
+	for (i = 0; i < qdio_init->no_output_qs; i++)
+		__qdio_allocate_fill_qdr(irq_ptr, irq_ptr->output_qs, i,
+					 qdio_init->no_input_qs);
+}
+
+static void setup_qib(struct qdio_irq *irq_ptr,
+		      struct qdio_initialize *init_data)
+{
+	if (qebsm_possible())
+		irq_ptr->qib.rflags |= QIB_RFLAGS_ENABLE_QEBSM;
+
+	irq_ptr->qib.qfmt = init_data->q_format;
+	if (init_data->no_input_qs)
+		irq_ptr->qib.isliba =
+			(unsigned long)(irq_ptr->input_qs[0]->slib);
+	if (init_data->no_output_qs)
+		irq_ptr->qib.osliba =
+			(unsigned long)(irq_ptr->output_qs[0]->slib);
+	memcpy(irq_ptr->qib.ebcnam, init_data->adapter_name, 8);
+}
+
+int qdio_setup_irq(struct qdio_initialize *init_data)
+{
+	struct ciw *ciw;
+	struct qdio_irq *irq_ptr = init_data->cdev->private->qdio_data;
+	int rc;
+
+	memset(irq_ptr, 0, ((char *)&irq_ptr->qdr) - ((char *)irq_ptr));
+	/* wipes qib.ac, required by ar7063 */
+	memset(irq_ptr->qdr, 0, sizeof(struct qdr));
+
+	irq_ptr->int_parm = init_data->int_parm;
+	irq_ptr->nr_input_qs = init_data->no_input_qs;
+	irq_ptr->nr_output_qs = init_data->no_output_qs;
+
+	irq_ptr->schid = ccw_device_get_subchannel_id(init_data->cdev);
+	irq_ptr->cdev = init_data->cdev;
+	setup_queues(irq_ptr, init_data);
+
+	setup_qib(irq_ptr, init_data);
+	qdio_setup_thinint(irq_ptr);
+	set_impl_params(irq_ptr, init_data->qib_param_field_format,
+			init_data->qib_param_field,
+			init_data->input_slib_elements,
+			init_data->output_slib_elements);
+
+	/* fill input and output descriptors */
+	setup_qdr(irq_ptr, init_data);
+
+	/* qdr, qib, sls, slsbs, slibs, sbales are filled now */
+
+	/* get qdio commands */
+	ciw = ccw_device_get_ciw(init_data->cdev, CIW_TYPE_EQUEUE);
+	if (!ciw) {
+		QDIO_DBF_TEXT2(1, setup, "no eq");
+		rc = -EINVAL;
+		goto out_err;
+	}
+	irq_ptr->equeue = *ciw;
+
+	ciw = ccw_device_get_ciw(init_data->cdev, CIW_TYPE_AQUEUE);
+	if (!ciw) {
+		QDIO_DBF_TEXT2(1, setup, "no aq");
+		rc = -EINVAL;
+		goto out_err;
+	}
+	irq_ptr->aqueue = *ciw;
+
+	/* set new interrupt handler */
+	irq_ptr->orig_handler = init_data->cdev->handler;
+	init_data->cdev->handler = qdio_int_handler;
+	return 0;
+out_err:
+	qdio_release_memory(irq_ptr);
+	return rc;
+}
+
+void qdio_print_subchannel_info(struct qdio_irq *irq_ptr,
+				struct ccw_device *cdev)
+{
+	char s[80];
+
+	sprintf(s, "%s ", cdev->dev.bus_id);
+
+	switch (irq_ptr->qib.qfmt) {
+	case QDIO_QETH_QFMT:
+		sprintf(s + strlen(s), "OSADE ");
+		break;
+	case QDIO_ZFCP_QFMT:
+		sprintf(s + strlen(s), "ZFCP ");
+		break;
+	case QDIO_IQDIO_QFMT:
+		sprintf(s + strlen(s), "HiperSockets ");
+		break;
+	}
+	sprintf(s + strlen(s), "using: ");
+
+	if (!is_thinint_irq(irq_ptr))
+		sprintf(s + strlen(s), "no");
+	sprintf(s + strlen(s), "AdapterInterrupts ");
+	if (!(irq_ptr->sch_token != 0))
+		sprintf(s + strlen(s), "no");
+	sprintf(s + strlen(s), "QEBSM ");
+	if (!(irq_ptr->qib.ac & QIB_AC_OUTBOUND_PCI_SUPPORTED))
+		sprintf(s + strlen(s), "no");
+	sprintf(s + strlen(s), "OutboundPCI ");
+	if (!css_general_characteristics.aif_tdd)
+		sprintf(s + strlen(s), "no");
+	sprintf(s + strlen(s), "TDD\n");
+	printk(KERN_INFO "qdio: %s", s);
+
+	memset(s, 0, sizeof(s));
+	sprintf(s, "%s SIGA required: ", cdev->dev.bus_id);
+	if (irq_ptr->siga_flag.input)
+		sprintf(s + strlen(s), "Read ");
+	if (irq_ptr->siga_flag.output)
+		sprintf(s + strlen(s), "Write ");
+	if (irq_ptr->siga_flag.sync)
+		sprintf(s + strlen(s), "Sync ");
+	if (!irq_ptr->siga_flag.no_sync_ti)
+		sprintf(s + strlen(s), "SyncAI ");
+	if (!irq_ptr->siga_flag.no_sync_out_ti)
+		sprintf(s + strlen(s), "SyncOutAI ");
+	if (!irq_ptr->siga_flag.no_sync_out_pci)
+		sprintf(s + strlen(s), "SyncOutPCI");
+	sprintf(s + strlen(s), "\n");
+	printk(KERN_INFO "qdio: %s", s);
+}
+
+int __init qdio_setup_init(void)
+{
+	char dbf_text[15];
+
+	qdio_q_cache = kmem_cache_create("qdio_q", sizeof(struct qdio_q),
+					 256, 0, NULL);
+	if (!qdio_q_cache)
+		return -ENOMEM;
+
+	/* Check for OSA/FCP thin interrupts (bit 67). */
+	sprintf(dbf_text, "thini%1x",
+		(css_general_characteristics.aif_osa) ? 1 : 0);
+	QDIO_DBF_TEXT0(0, setup, dbf_text);
+
+	/* Check for QEBSM support in general (bit 58). */
+	sprintf(dbf_text, "cssQBS:%1x",
+		(qebsm_possible()) ? 1 : 0);
+	QDIO_DBF_TEXT0(0, setup, dbf_text);
+	return 0;
+}
+
+void __exit qdio_setup_exit(void)
+{
+	kmem_cache_destroy(qdio_q_cache);
+}
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
new file mode 100644
index 0000000..9291a77
--- /dev/null
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -0,0 +1,380 @@
+/*
+ * linux/drivers/s390/cio/thinint_qdio.c
+ *
+ * thin interrupt support for qdio
+ *
+ * Copyright 2000-2008 IBM Corp.
+ * Author(s): Utz Bacher <utz.bacher@de.ibm.com>
+ *	      Cornelia Huck <cornelia.huck@de.ibm.com>
+ *	      Jan Glauber <jang@linux.vnet.ibm.com>
+ */
+#include <linux/io.h>
+#include <asm/atomic.h>
+#include <asm/debug.h>
+#include <asm/qdio.h>
+#include <asm/airq.h>
+#include <asm/isc.h>
+
+#include "cio.h"
+#include "ioasm.h"
+#include "qdio.h"
+#include "qdio_debug.h"
+#include "qdio_perf.h"
+
+/*
+ * Restriction: only 63 iqdio subchannels would have its own indicator,
+ * after that, subsequent subchannels share one indicator
+ */
+#define TIQDIO_NR_NONSHARED_IND		63
+#define TIQDIO_NR_INDICATORS		(TIQDIO_NR_NONSHARED_IND + 1)
+#define TIQDIO_SHARED_IND		63
+
+/* list of thin interrupt input queues */
+static LIST_HEAD(tiq_list);
+
+/* adapter local summary indicator */
+static unsigned char *tiqdio_alsi;
+
+/* device state change indicators */
+struct indicator_t {
+	u32 ind;	/* u32 because of compare-and-swap performance */
+	atomic_t count; /* use count, 0 or 1 for non-shared indicators */
+};
+static struct indicator_t *q_indicators;
+
+static void tiqdio_tasklet_fn(unsigned long data);
+static DECLARE_TASKLET(tiqdio_tasklet, tiqdio_tasklet_fn, 0);
+
+static int css_qdio_omit_svs;
+
+static inline unsigned long do_clear_global_summary(void)
+{
+	register unsigned long __fn asm("1") = 3;
+	register unsigned long __tmp asm("2");
+	register unsigned long __time asm("3");
+
+	asm volatile(
+		"	.insn	rre,0xb2650000,2,0"
+		: "+d" (__fn), "=d" (__tmp), "=d" (__time));
+	return __time;
+}
+
+/* returns addr for the device state change indicator */
+static u32 *get_indicator(void)
+{
+	int i;
+
+	for (i = 0; i < TIQDIO_NR_NONSHARED_IND; i++)
+		if (!atomic_read(&q_indicators[i].count)) {
+			atomic_set(&q_indicators[i].count, 1);
+			return &q_indicators[i].ind;
+		}
+
+	/* use the shared indicator */
+	atomic_inc(&q_indicators[TIQDIO_SHARED_IND].count);
+	return &q_indicators[TIQDIO_SHARED_IND].ind;
+}
+
+static void put_indicator(u32 *addr)
+{
+	int i;
+
+	if (!addr)
+		return;
+	i = ((unsigned long)addr - (unsigned long)q_indicators) /
+		sizeof(struct indicator_t);
+	atomic_dec(&q_indicators[i].count);
+}
+
+void tiqdio_add_input_queues(struct qdio_irq *irq_ptr)
+{
+	struct qdio_q *q;
+	int i;
+
+	/* No TDD facility? If we must use SIGA-s we can also omit SVS. */
+	if (!css_qdio_omit_svs && irq_ptr->siga_flag.sync)
+		css_qdio_omit_svs = 1;
+
+	for_each_input_queue(irq_ptr, q, i) {
+		list_add_rcu(&q->entry, &tiq_list);
+		synchronize_rcu();
+	}
+	xchg(irq_ptr->dsci, 1);
+	tasklet_schedule(&tiqdio_tasklet);
+}
+
+/*
+ * we cannot stop the tiqdio tasklet here since it is for all
+ * thinint qdio devices and it must run as long as there is a
+ * thinint device left
+ */
+void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr)
+{
+	struct qdio_q *q;
+	int i;
+
+	for_each_input_queue(irq_ptr, q, i) {
+		list_del_rcu(&q->entry);
+		synchronize_rcu();
+	}
+}
+
+static inline int tiqdio_inbound_q_done(struct qdio_q *q)
+{
+	unsigned char state;
+
+	if (!atomic_read(&q->nr_buf_used))
+		return 1;
+
+	qdio_siga_sync_q(q);
+	get_buf_state(q, q->first_to_check, &state);
+
+	if (state == SLSB_P_INPUT_PRIMED)
+		/* more work coming */
+		return 0;
+	return 1;
+}
+
+static inline int shared_ind(struct qdio_irq *irq_ptr)
+{
+	return irq_ptr->dsci == &q_indicators[TIQDIO_SHARED_IND].ind;
+}
+
+static void __tiqdio_inbound_processing(struct qdio_q *q)
+{
+	qdio_perf_stat_inc(&perf_stats.thinint_inbound);
+	qdio_sync_after_thinint(q);
+
+	/*
+	 * Maybe we have work on our outbound queues... at least
+	 * we have to check the PCI capable queues.
+	 */
+	qdio_check_outbound_after_thinint(q);
+
+again:
+	if (!qdio_inbound_q_moved(q))
+		return;
+
+	qdio_kick_inbound_handler(q);
+
+	if (!tiqdio_inbound_q_done(q)) {
+		qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop);
+		goto again;
+	}
+
+	qdio_stop_polling(q);
+	/*
+	 * We need to check again to not lose initiative after
+	 * resetting the ACK state.
+	 */
+	if (!tiqdio_inbound_q_done(q)) {
+		qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop2);
+		goto again;
+	}
+}
+
+void tiqdio_inbound_processing(unsigned long data)
+{
+	struct qdio_q *q = (struct qdio_q *)data;
+
+	__tiqdio_inbound_processing(q);
+}
+
+/* check for work on all inbound thinint queues */
+static void tiqdio_tasklet_fn(unsigned long data)
+{
+	struct qdio_q *q;
+
+	qdio_perf_stat_inc(&perf_stats.tasklet_thinint);
+again:
+
+	/* protect tiq_list entries, only changed in activate or shutdown */
+	rcu_read_lock();
+
+	list_for_each_entry_rcu(q, &tiq_list, entry)
+		/* only process queues from changed sets */
+		if (*q->irq_ptr->dsci) {
+
+			/* only clear it if the indicator is non-shared */
+			if (!shared_ind(q->irq_ptr))
+				xchg(q->irq_ptr->dsci, 0);
+			/*
+			 * don't call inbound processing directly since
+			 * that could starve other thinint queues
+			 */
+			tasklet_schedule(&q->tasklet);
+		}
+
+	rcu_read_unlock();
+
+	/*
+	 * if we used the shared indicator clear it now after all queues
+	 * were processed
+	 */
+	if (atomic_read(&q_indicators[TIQDIO_SHARED_IND].count)) {
+		xchg(&q_indicators[TIQDIO_SHARED_IND].ind, 0);
+
+		/* prevent racing */
+		if (*tiqdio_alsi)
+			xchg(&q_indicators[TIQDIO_SHARED_IND].ind, 1);
+	}
+
+	/* check for more work */
+	if (*tiqdio_alsi) {
+		xchg(tiqdio_alsi, 0);
+		qdio_perf_stat_inc(&perf_stats.tasklet_thinint_loop);
+		goto again;
+	}
+}
+
+/**
+ * tiqdio_thinint_handler - thin interrupt handler for qdio
+ * @ind: pointer to adapter local summary indicator
+ * @drv_data: NULL
+ */
+static void tiqdio_thinint_handler(void *ind, void *drv_data)
+{
+	qdio_perf_stat_inc(&perf_stats.thin_int);
+
+	/*
+	 * SVS only when needed: issue SVS to benefit from iqdio interrupt
+	 * avoidance (SVS clears adapter interrupt suppression overwrite)
+	 */
+	if (!css_qdio_omit_svs)
+		do_clear_global_summary();
+
+	/*
+	 * reset local summary indicator (tiqdio_alsi) to stop adapter
+	 * interrupts for now, the tasklet will clean all dsci's
+	 */
+	xchg((u8 *)ind, 0);
+	tasklet_hi_schedule(&tiqdio_tasklet);
+}
+
+static int set_subchannel_ind(struct qdio_irq *irq_ptr, int reset)
+{
+	struct scssc_area *scssc_area;
+	char dbf_text[15];
+	void *ptr;
+	int rc;
+
+	scssc_area = (struct scssc_area *)irq_ptr->chsc_page;
+	memset(scssc_area, 0, PAGE_SIZE);
+
+	if (reset) {
+		scssc_area->summary_indicator_addr = 0;
+		scssc_area->subchannel_indicator_addr = 0;
+	} else {
+		scssc_area->summary_indicator_addr = virt_to_phys(tiqdio_alsi);
+		scssc_area->subchannel_indicator_addr =
+			virt_to_phys(irq_ptr->dsci);
+	}
+
+	scssc_area->request = (struct chsc_header) {
+		.length = 0x0fe0,
+		.code	= 0x0021,
+	};
+	scssc_area->operation_code = 0;
+	scssc_area->ks = PAGE_DEFAULT_KEY;
+	scssc_area->kc = PAGE_DEFAULT_KEY;
+	scssc_area->isc = QDIO_AIRQ_ISC;
+	scssc_area->schid = irq_ptr->schid;
+
+	/* enable the time delay disablement facility */
+	if (css_general_characteristics.aif_tdd)
+		scssc_area->word_with_d_bit = 0x10000000;
+
+	rc = chsc(scssc_area);
+	if (rc)
+		return -EIO;
+
+	rc = chsc_error_from_response(scssc_area->response.code);
+	if (rc) {
+		sprintf(dbf_text, "sidR%4x", scssc_area->response.code);
+		QDIO_DBF_TEXT1(0, trace, dbf_text);
+		QDIO_DBF_TEXT1(0, setup, dbf_text);
+		ptr = &scssc_area->response;
+		QDIO_DBF_HEX2(1, setup, &ptr, QDIO_DBF_SETUP_LEN);
+		return rc;
+	}
+
+	QDIO_DBF_TEXT2(0, setup, "setscind");
+	QDIO_DBF_HEX2(0, setup, &scssc_area->summary_indicator_addr,
+		      sizeof(unsigned long));
+	QDIO_DBF_HEX2(0, setup, &scssc_area->subchannel_indicator_addr,
+		      sizeof(unsigned long));
+	return 0;
+}
+
+/* allocate non-shared indicators and shared indicator */
+int __init tiqdio_allocate_memory(void)
+{
+	q_indicators = kzalloc(sizeof(struct indicator_t) * TIQDIO_NR_INDICATORS,
+			     GFP_KERNEL);
+	if (!q_indicators)
+		return -ENOMEM;
+	return 0;
+}
+
+void tiqdio_free_memory(void)
+{
+	kfree(q_indicators);
+}
+
+int __init tiqdio_register_thinints(void)
+{
+	char dbf_text[20];
+
+	isc_register(QDIO_AIRQ_ISC);
+	tiqdio_alsi = s390_register_adapter_interrupt(&tiqdio_thinint_handler,
+						      NULL, QDIO_AIRQ_ISC);
+	if (IS_ERR(tiqdio_alsi)) {
+		sprintf(dbf_text, "regthn%lx", PTR_ERR(tiqdio_alsi));
+		QDIO_DBF_TEXT0(0, setup, dbf_text);
+		tiqdio_alsi = NULL;
+		isc_unregister(QDIO_AIRQ_ISC);
+		return -ENOMEM;
+	}
+	return 0;
+}
+
+int qdio_establish_thinint(struct qdio_irq *irq_ptr)
+{
+	if (!is_thinint_irq(irq_ptr))
+		return 0;
+
+	/* Check for aif time delay disablement. If installed,
+	 * omit SVS even under LPAR
+	 */
+	if (css_general_characteristics.aif_tdd)
+		css_qdio_omit_svs = 1;
+	return set_subchannel_ind(irq_ptr, 0);
+}
+
+void qdio_setup_thinint(struct qdio_irq *irq_ptr)
+{
+	if (!is_thinint_irq(irq_ptr))
+		return;
+	irq_ptr->dsci = get_indicator();
+	QDIO_DBF_HEX1(0, setup, &irq_ptr->dsci, sizeof(void *));
+}
+
+void qdio_shutdown_thinint(struct qdio_irq *irq_ptr)
+{
+	if (!is_thinint_irq(irq_ptr))
+		return;
+
+	/* reset adapter interrupt indicators */
+	put_indicator(irq_ptr->dsci);
+	set_subchannel_ind(irq_ptr, 1);
+}
+
+void __exit tiqdio_unregister_thinints(void)
+{
+	tasklet_disable(&tiqdio_tasklet);
+
+	if (tiqdio_alsi) {
+		s390_unregister_adapter_interrupt(tiqdio_alsi, QDIO_AIRQ_ISC);
+		isc_unregister(QDIO_AIRQ_ISC);
+	}
+}