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Diffstat (limited to 'drivers/s390/cio/qdio.h')
-rw-r--r--drivers/s390/cio/qdio.h648
1 files changed, 648 insertions, 0 deletions
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
new file mode 100644
index 000000000000..9ad14db24143
--- /dev/null
+++ b/drivers/s390/cio/qdio.h
@@ -0,0 +1,648 @@
+#ifndef _CIO_QDIO_H
+#define _CIO_QDIO_H
+
+#define VERSION_CIO_QDIO_H "$Revision: 1.26 $"
+
+#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 0
+
+#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_INDEX 2
+#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_INDEX 2
+#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_INDEX 4
+#define QDIO_DBF_TRACE_LEVEL 4 /* -------- could be even more verbose here */
+#else /* CONFIG_QDIO_DEBUG */
+#define QDIO_DBF_TRACE_INDEX 2
+#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_INDEX 1
+#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_INDEX 8
+#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_INDEX 8
+#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
+ */
+extern __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;
+}
+
+extern __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"
+ "srl %0,28 \n\t"
+ : "=d" (cc)
+ : "d" (0x10000|irq), "d" (mask)
+ : "cc", "0", "1", "2", "memory"
+ );
+#endif /* CONFIG_ARCH_S390X */
+
+ return cc;
+}
+
+extern __inline__ int
+do_siga_output(unsigned long irq, unsigned long mask, __u32 *bb)
+{
+ int cc;
+ __u32 busy_bit;
+
+#ifndef CONFIG_ARCH_S390X
+ asm volatile (
+ "lhi 0,0 \n\t"
+ "lr 1,%2 \n\t"
+ "lr 2,%3 \n\t"
+ "siga 0 \n\t"
+ "0:"
+ "ipm %0 \n\t"
+ "srl %0,28 \n\t"
+ "srl 0,31 \n\t"
+ "lr %1,0 \n\t"
+ "1: \n\t"
+ ".section .fixup,\"ax\"\n\t"
+ "2: \n\t"
+ "lhi %0,%4 \n\t"
+ "bras 1,3f \n\t"
+ ".long 1b \n\t"
+ "3: \n\t"
+ "l 1,0(1) \n\t"
+ "br 1 \n\t"
+ ".previous \n\t"
+ ".section __ex_table,\"a\"\n\t"
+ ".align 4 \n\t"
+ ".long 0b,2b \n\t"
+ ".previous \n\t"
+ : "=d" (cc), "=d" (busy_bit)
+ : "d" (0x10000|irq), "d" (mask),
+ "i" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION)
+ : "cc", "0", "1", "2", "memory"
+ );
+#else /* CONFIG_ARCH_S390X */
+ asm volatile (
+ "lghi 0,0 \n\t"
+ "llgfr 1,%2 \n\t"
+ "llgfr 2,%3 \n\t"
+ "siga 0 \n\t"
+ "0:"
+ "ipm %0 \n\t"
+ "srl %0,28 \n\t"
+ "srl 0,31 \n\t"
+ "llgfr %1,0 \n\t"
+ "1: \n\t"
+ ".section .fixup,\"ax\"\n\t"
+ "lghi %0,%4 \n\t"
+ "jg 1b \n\t"
+ ".previous\n\t"
+ ".section __ex_table,\"a\"\n\t"
+ ".align 8 \n\t"
+ ".quad 0b,1b \n\t"
+ ".previous \n\t"
+ : "=d" (cc), "=d" (busy_bit)
+ : "d" (0x10000|irq), "d" (mask),
+ "i" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION)
+ : "cc", "0", "1", "2", "memory"
+ );
+#endif /* CONFIG_ARCH_S390X */
+
+ (*bb) = busy_bit;
+ return cc;
+}
+
+extern __inline__ unsigned long
+do_clear_global_summary(void)
+{
+
+ unsigned long time;
+
+#ifndef CONFIG_ARCH_S390X
+ asm volatile (
+ "lhi 1,3 \n\t"
+ ".insn rre,0xb2650000,2,0 \n\t"
+ "lr %0,3 \n\t"
+ : "=d" (time) : : "cc", "1", "2", "3"
+ );
+#else /* CONFIG_ARCH_S390X */
+ asm volatile (
+ "lghi 1,3 \n\t"
+ ".insn rre,0xb2650000,2,0 \n\t"
+ "lgr %0,3 \n\t"
+ : "=d" (time) : : "cc", "1", "2", "3"
+ );
+#endif /* CONFIG_ARCH_S390X */
+
+ 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
+
+#ifdef QDIO_PERFORMANCE_STATS
+struct qdio_perf_stats {
+ unsigned int tl_runs;
+
+ unsigned int siga_outs;
+ unsigned int siga_ins;
+ unsigned int siga_syncs;
+ unsigned int pcis;
+ unsigned int thinints;
+ unsigned int fast_reqs;
+
+ __u64 start_time_outbound;
+ unsigned int outbound_cnt;
+ unsigned int outbound_time;
+ __u64 start_time_inbound;
+ unsigned int inbound_cnt;
+ unsigned int inbound_time;
+};
+#endif /* QDIO_PERFORMANCE_STATS */
+
+#define atomic_swap(a,b) xchg((int*)a.counter,b)
+
+/* 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_ARCH_S390X
+#define QDIO_GET_ADDR(x) ((__u32)(unsigned long)x)
+#else /* CONFIG_ARCH_S390X */
+#define QDIO_GET_ADDR(x) ((__u32)(long)x)
+#endif /* CONFIG_ARCH_S390X */
+
+#ifdef CONFIG_QDIO_DEBUG
+#define set_slsb(x,y) \
+ 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); \
+ } \
+ } \
+ qdio_set_slsb(x,y); \
+ 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); \
+ } \
+ }
+#else /* CONFIG_QDIO_DEBUG */
+#define set_slsb(x,y) qdio_set_slsb(x,y)
+#endif /* CONFIG_QDIO_DEBUG */
+
+struct qdio_q {
+ volatile struct slsb slsb;
+
+ char unused[QDIO_MAX_BUFFERS_PER_Q];
+
+ __u32 * volatile dev_st_chg_ind;
+
+ int is_input_q;
+ int irq;
+ 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;
+ int irq;
+
+ unsigned int is_iqdio_irq;
+ unsigned int is_thinint_irq;
+ unsigned int hydra_gives_outbound_pcis;
+ unsigned int sync_done_on_outb_pcis;
+
+ 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
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-16 11:25:01 +0000