diff options
Diffstat (limited to 'drivers/scsi/libfc/fc_exch.c')
| -rw-r--r-- | drivers/scsi/libfc/fc_exch.c | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c index 1d0334f83f78..10a6a2a7bfc5 100644 --- a/drivers/scsi/libfc/fc_exch.c +++ b/drivers/scsi/libfc/fc_exch.c @@ -99,11 +99,6 @@ struct fc_exch_mgr { u16 max_xid; u16 pool_max_index; - /* - * currently exchange mgr stats are updated but not used. - * either stats can be expose via sysfs or remove them - * all together if not used XXX - */ struct { atomic_t no_free_exch; atomic_t no_free_exch_xid; @@ -2156,6 +2151,31 @@ out: } /** + * fc_exch_update_stats() - update exches stats to lport + * @lport: The local port to update exchange manager stats + */ +void fc_exch_update_stats(struct fc_lport *lport) +{ + struct fc_host_statistics *st; + struct fc_exch_mgr_anchor *ema; + struct fc_exch_mgr *mp; + + st = &lport->host_stats; + + list_for_each_entry(ema, &lport->ema_list, ema_list) { + mp = ema->mp; + st->fc_no_free_exch += atomic_read(&mp->stats.no_free_exch); + st->fc_no_free_exch_xid += + atomic_read(&mp->stats.no_free_exch_xid); + st->fc_xid_not_found += atomic_read(&mp->stats.xid_not_found); + st->fc_xid_busy += atomic_read(&mp->stats.xid_busy); + st->fc_seq_not_found += atomic_read(&mp->stats.seq_not_found); + st->fc_non_bls_resp += atomic_read(&mp->stats.non_bls_resp); + } +} +EXPORT_SYMBOL(fc_exch_update_stats); + +/** * fc_exch_mgr_add() - Add an exchange manager to a local port's list of EMs * @lport: The local port to add the exchange manager to * @mp: The exchange manager to be added to the local port |