qdio.h

linux-2.6.15.6

#ifndef _CIO_QDIO_H
#define _CIO_QDIO_H

#include <asm/page.h>

#define VERSION_CIO_QDIO_H "$Revision: 1.33 $"

#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

#ifdef CONFIG_QDIO_PERF_STATS
#define QDIO_PERFORMANCE_STATS
#endif /* CONFIG_QDIO_PERF_STATS */

#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...)
#endif

#if QDIO_VERBOSE_LEVEL>7
#define QDIO_PRINT_ALL(x...) printk( QDIO_PRINTK_HEADER x)
#else
#define QDIO_PRINT_ALL(x...)
#endif

#if QDIO_VERBOSE_LEVEL>6
#define QDIO_PRINT_INFO(x...) printk( QDIO_PRINTK_HEADER x)
#else
#define QDIO_PRINT_INFO(x...)
#endif

#if QDIO_VERBOSE_LEVEL>5
#define QDIO_PRINT_WARN(x...) printk( QDIO_PRINTK_HEADER x)
#else
#define QDIO_PRINT_WARN(x...)
#endif

#if QDIO_VERBOSE_LEVEL>4
#define QDIO_PRINT_ERR(x...) printk( QDIO_PRINTK_HEADER x)
#else
#define QDIO_PRINT_ERR(x...)
#endif

#if QDIO_VERBOSE_LEVEL>3
#define QDIO_PRINT_CRIT(x...) printk( QDIO_PRINTK_HEADER x)
#else
#define QDIO_PRINT_CRIT(x...)
#endif

#if QDIO_VERBOSE_LEVEL>2
#define QDIO_PRINT_ALERT(x...) printk( QDIO_PRINTK_HEADER x)
#else
#define QDIO_PRINT_ALERT(x...)
#endif

#if QDIO_VERBOSE_LEVEL>1
#define QDIO_PRINT_EMERG(x...) printk( QDIO_PRINTK_HEADER x)
#else
#define QDIO_PRINT_EMERG(x...)
#endif

#define 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_siga_sync(unsigned int irq, unsigned int mask1, unsigned int mask2)
{
	int cc;

#ifndef CONFIG_ARCH_S390X
	asm volatile (
		"lhi	0,2	\n\t"
		"lr	1,%1	\n\t"
		"lr	2,%2	\n\t"
		"lr	3,%3	\n\t"
		"siga   0	\n\t"
		"ipm	%0	\n\t"
		"srl	%0,28	\n\t"
		: "=d" (cc)
		: "d" (0x10000|irq), "d" (mask1), "d" (mask2)
		: "cc", "0", "1", "2", "3"
		);
#else /* CONFIG_ARCH_S390X */
	asm volatile (
		"lghi	0,2	\n\t"
		"llgfr	1,%1	\n\t"
		"llgfr	2,%2	\n\t"
		"llgfr	3,%3	\n\t"
		"siga   0	\n\t"
		"ipm	%0	\n\t"
		"srl	%0,28	\n\t"
		: "=d" (cc)
		: "d" (0x10000|irq), "d" (mask1), "d" (mask2)
		: "cc", "0", "1", "2", "3"
		);
#endif /* CONFIG_ARCH_S390X */
	return cc;
}

static inline int
do_siga_input(unsigned int irq, unsigned int mask)
{
	int cc;

#ifndef CONFIG_ARCH_S390X
	asm volatile (
		"lhi	0,1	\n\t"
		"lr	1,%1	\n\t"
		"lr	2,%2	\n\t"
		"siga   0	\n\t"
		"ipm	%0	\n\t"
		"srl	%0,28	\n\t"
		: "=d" (cc)
		: "d" (0x10000|irq), "d" (mask)
		: "cc", "0", "1", "2", "memory"
		);
#else /* CONFIG_ARCH_S390X */
	asm volatile (
		"lghi	0,1	\n\t"
		"llgfr	1,%1	\n\t"
		"llgfr	2,%2	\n\t"
		"siga   0	\n\t"
		"ipm	%0	\n\t"