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android_kernel_xiaomi_sm8350/drivers/s390/cio/qdio.h
Ursula Braun 34249d0f92 [S390] runtime switch for qdio performance statistics 
Remove CONFIG_QETH_PERF_STATS and use a sysfs attribute instead.
We want to have the ability to turn the statistics on/off at runtime.

Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-08 15:54:18 +01:00

585 lines
16 KiB
C
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#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)
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 {
unsigned long tl_runs;
unsigned long siga_outs;
unsigned long siga_ins;
unsigned long siga_syncs;
unsigned long pcis;
unsigned long thinints;
unsigned long fast_reqs;
__u64 start_time_outbound;
unsigned long outbound_cnt;
unsigned long outbound_time;
__u64 start_time_inbound;
unsigned long inbound_cnt;
unsigned long inbound_time;
};
/* 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;
#ifdef QDIO_USE_TIMERS_FOR_POLLING
struct timer_list timer;
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;
/* 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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