1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #undef TRACE_SYSTEM 3 #define TRACE_SYSTEM kyber 4 5 #if !defined(_TRACE_KYBER_H) || defined(TRACE_HEADER_MULTI_READ) 6 #define _TRACE_KYBER_H 7 8 #include <linux/blkdev.h> 9 #include <linux/tracepoint.h> 10 11 #define DOMAIN_LEN 16 12 #define LATENCY_TYPE_LEN 8 13 14 TRACE_EVENT(kyber_latency, 15 16 TP_PROTO(struct request_queue *q, const char *domain, const char *type, 17 unsigned int percentile, unsigned int numerator, 18 unsigned int denominator, unsigned int samples), 19 20 TP_ARGS(q, domain, type, percentile, numerator, denominator, samples), 21 22 TP_STRUCT__entry( 23 __field( dev_t, dev ) 24 __array( char, domain, DOMAIN_LEN ) 25 __array( char, type, LATENCY_TYPE_LEN ) 26 __field( u8, percentile ) 27 __field( u8, numerator ) 28 __field( u8, denominator ) 29 __field( unsigned int, samples ) 30 ), 31 32 TP_fast_assign( 33 __entry->dev = disk_devt(dev_to_disk(kobj_to_dev(q->kobj.parent))); 34 strlcpy(__entry->domain, domain, sizeof(__entry->domain)); 35 strlcpy(__entry->type, type, sizeof(__entry->type)); 36 __entry->percentile = percentile; 37 __entry->numerator = numerator; 38 __entry->denominator = denominator; 39 __entry->samples = samples; 40 ), 41 42 TP_printk("%d,%d %s %s p%u %u/%u samples=%u", 43 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->domain, 44 __entry->type, __entry->percentile, __entry->numerator, 45 __entry->denominator, __entry->samples) 46 ); 47 48 TRACE_EVENT(kyber_adjust, 49 50 TP_PROTO(struct request_queue *q, const char *domain, 51 unsigned int depth), 52 53 TP_ARGS(q, domain, depth), 54 55 TP_STRUCT__entry( 56 __field( dev_t, dev ) 57 __array( char, domain, DOMAIN_LEN ) 58 __field( unsigned int, depth ) 59 ), 60 61 TP_fast_assign( 62 __entry->dev = disk_devt(dev_to_disk(kobj_to_dev(q->kobj.parent))); 63 strlcpy(__entry->domain, domain, sizeof(__entry->domain)); 64 __entry->depth = depth; 65 ), 66 67 TP_printk("%d,%d %s %u", 68 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->domain, 69 __entry->depth) 70 ); 71 72 TRACE_EVENT(kyber_throttled, 73 74 TP_PROTO(struct request_queue *q, const char *domain), 75 76 TP_ARGS(q, domain), 77 78 TP_STRUCT__entry( 79 __field( dev_t, dev ) 80 __array( char, domain, DOMAIN_LEN ) 81 ), 82 83 TP_fast_assign( 84 __entry->dev = disk_devt(dev_to_disk(kobj_to_dev(q->kobj.parent))); 85 strlcpy(__entry->domain, domain, sizeof(__entry->domain)); 86 ), 87 88 TP_printk("%d,%d %s", MAJOR(__entry->dev), MINOR(__entry->dev), 89 __entry->domain) 90 ); 91 92 #define _TRACE_KYBER_H 93 #endif /* _TRACE_KYBER_H */ 94 95 /* This part must be outside protection */ 96 #include <trace/define_trace.h> 97