qdio.h

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	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 */

#define QDIO_CHSC_RESPONSE_CODE_OK 1
/* flags for st qdio sch data */
#define CHSC_FLAG_QDIO_CAPABILITY 0x80
#define CHSC_FLAG_VALIDITY 0x40

#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 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 */
};

/* 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)

#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)

#define MY_MODULE_STRING(x) #x

#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 */

struct qdio_q {
	volatile struct slsb slsb;

	char unused[QDIO_MAX_BUFFERS_PER_Q];

	__u32 * dev_st_chg_ind;

	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;

	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;

	atomic_t number_of_buffers_used;
	atomic_t polling;

	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;

	/* used to save beginning position when calling dd_handlers */
	int first_element_to_kick;

	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 tasklet_struct tasklet;
#endif /* QDIO_USE_TIMERS_FOR_POLLING */


	enum qdio_irq_states state;

	/* used to store the 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) */
} __attribute__ ((aligned(256)));

struct qdio_irq {
	__u32 * volatile dev_st_chg_ind;

	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;

	enum qdio_irq_states state;

	unsigned int no_input_qs;
	unsigned int no_output_qs;

	unsigned char qdioac;

	struct ccw1 ccw;

	struct ciw equeue;
	struct ciw aqueue;

	struct qib qib;
	
 	void (*original_int_handler) (struct ccw_device *,
 				      unsigned long, struct irb *);

	/* leave these four members together at the end. won't be cleared in qdio_fill_irq */
	struct qdr *qdr;
	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;
};
#endif