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linux-stable/drivers/s390/cio/qdio.h
Ursula Braun 1f8bdae9ef s390: free skbs in finite amount of time in qeth 
Free sent skbs in some finite amount of time. Affected are
asynchronous queue of Hipersockets devices and the output
queues of all eth-devices respectively.

Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-08 01:16:23 -04:00

608 lines
17 KiB
C
Raw Blame History

#ifndef _CIO_QDIO_H
#define _CIO_QDIO_H
#include <asm/page.h>
#include "schid.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 3
#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_ACTIVATE_TIMEOUT ((5*HZ)>>10)
#define QDIO_CLEANUP_CLEAR_TIMEOUT (20*HZ)
#define QDIO_CLEANUP_HALT_TIMEOUT (10*HZ)
#define QDIO_FORCE_CHECK_TIMEOUT (10*HZ)
enum qdio_irq_states {
QDIO_IRQ_STATE_INACTIVE,
QDIO_IRQ_STATE_ESTABLISHED,
QDIO_IRQ_STATE_ACTIVE,
QDIO_IRQ_STATE_STOPPED,
QDIO_IRQ_STATE_CLEANUP,
QDIO_IRQ_STATE_ERR,
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
#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
#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 *********************/
/*
* Some instructions as assembly
*/
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
}
static inline int
do_eqbs(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;
unsigned long _state = 0;
asm volatile(
" .insn rrf,0xB99c0000,%1,%2,0,0"
: "+d" (_ccq), "+d" (_queuestart), "+d" (_state)
: "d" (_sch)
: "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 */
#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
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