diff options
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_stats.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_stats.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_stats.c b/drivers/infiniband/hw/ipath/ipath_stats.c index bae4f56f7271..f0271415cd5b 100644 --- a/drivers/infiniband/hw/ipath/ipath_stats.c +++ b/drivers/infiniband/hw/ipath/ipath_stats.c @@ -55,7 +55,6 @@ u64 ipath_snap_cntr(struct ipath_devdata *dd, ipath_creg creg) u64 val64; unsigned long t0, t1; u64 ret; - unsigned long flags; t0 = jiffies; /* If fast increment counters are only 32 bits, snapshot them, @@ -92,18 +91,12 @@ u64 ipath_snap_cntr(struct ipath_devdata *dd, ipath_creg creg) if (creg == dd->ipath_cregs->cr_wordsendcnt) { if (val != dd->ipath_lastsword) { dd->ipath_sword += val - dd->ipath_lastsword; - spin_lock_irqsave(&dd->ipath_eep_st_lock, flags); - dd->ipath_traffic_wds += val - dd->ipath_lastsword; - spin_unlock_irqrestore(&dd->ipath_eep_st_lock, flags); dd->ipath_lastsword = val; } val64 = dd->ipath_sword; } else if (creg == dd->ipath_cregs->cr_wordrcvcnt) { if (val != dd->ipath_lastrword) { dd->ipath_rword += val - dd->ipath_lastrword; - spin_lock_irqsave(&dd->ipath_eep_st_lock, flags); - dd->ipath_traffic_wds += val - dd->ipath_lastrword; - spin_unlock_irqrestore(&dd->ipath_eep_st_lock, flags); dd->ipath_lastrword = val; } val64 = dd->ipath_rword; @@ -247,6 +240,7 @@ void ipath_get_faststats(unsigned long opaque) u32 val; static unsigned cnt; unsigned long flags; + u64 traffic_wds; /* * don't access the chip while running diags, or memory diags can @@ -262,12 +256,13 @@ void ipath_get_faststats(unsigned long opaque) * exceeding a threshold, so we need to check the word-counts * even if they are 64-bit. */ - ipath_snap_cntr(dd, dd->ipath_cregs->cr_wordsendcnt); - ipath_snap_cntr(dd, dd->ipath_cregs->cr_wordrcvcnt); + traffic_wds = ipath_snap_cntr(dd, dd->ipath_cregs->cr_wordsendcnt) + + ipath_snap_cntr(dd, dd->ipath_cregs->cr_wordrcvcnt); spin_lock_irqsave(&dd->ipath_eep_st_lock, flags); - if (dd->ipath_traffic_wds >= IPATH_TRAFFIC_ACTIVE_THRESHOLD) + traffic_wds -= dd->ipath_traffic_wds; + dd->ipath_traffic_wds += traffic_wds; + if (traffic_wds >= IPATH_TRAFFIC_ACTIVE_THRESHOLD) atomic_add(5, &dd->ipath_active_time); /* S/B #define */ - dd->ipath_traffic_wds = 0; spin_unlock_irqrestore(&dd->ipath_eep_st_lock, flags); if (dd->ipath_flags & IPATH_32BITCOUNTERS) { |