Skip to main content

Browse the archive

Revision 38a98bceaf5f786b931d16826fbb46e73280849b authored by David S. Miller on 24 April 2017, 22:28:57 UTC, committed by David S. Miller on 24 April 2017, 22:29:11 UTC 
Merge branch 'dsa-b53-58xx-fixes'
 
Florian Fainelli says:

====================
net: dsa: b53: BCM58xx devices fixes

This patch series contains fixes for the 58xx devices (Broadcom Northstar
Plus), which were identified thanks to the help of Eric Anholt.
====================

Tested-by: Eric Anholt <eric@anholt.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 parent s 38baf3a + bfcda65
Raw File
blk-stat.h 
#ifndef BLK_STAT_H
#define BLK_STAT_H

/*
 * ~0.13s window as a power-of-2 (2^27 nsecs)
 */
#define BLK_STAT_NSEC		134217728ULL
#define BLK_STAT_NSEC_MASK	~(BLK_STAT_NSEC - 1)

/*
 * Upper 3 bits can be used elsewhere
 */
#define BLK_STAT_RES_BITS	3
#define BLK_STAT_SHIFT		(64 - BLK_STAT_RES_BITS)
#define BLK_STAT_TIME_MASK	((1ULL << BLK_STAT_SHIFT) - 1)
#define BLK_STAT_MASK		~BLK_STAT_TIME_MASK

enum {
	BLK_STAT_READ	= 0,
	BLK_STAT_WRITE,
};

void blk_stat_add(struct blk_rq_stat *, struct request *);
void blk_hctx_stat_get(struct blk_mq_hw_ctx *, struct blk_rq_stat *);
void blk_queue_stat_get(struct request_queue *, struct blk_rq_stat *);
void blk_stat_clear(struct request_queue *);
void blk_stat_init(struct blk_rq_stat *);
bool blk_stat_is_current(struct blk_rq_stat *);
void blk_stat_set_issue_time(struct blk_issue_stat *);
bool blk_stat_enable(struct request_queue *);

static inline u64 __blk_stat_time(u64 time)
{
	return time & BLK_STAT_TIME_MASK;
}

static inline u64 blk_stat_time(struct blk_issue_stat *stat)
{
	return __blk_stat_time(stat->time);
}

#endif
back to top