diff options
| author | James Smart <james.smart@emulex.com> | 2012-08-03 12:36:03 -0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-09-14 14:40:15 +0100 |
| commit | aa6fbb757ab6fce4647bafd28f9a49e5b0fa07db (patch) | |
| tree | 64e1f80c87a1e602c79eccafc30ed1b2d5ae8619 /drivers/scsi/lpfc/lpfc_sli.c | |
| parent | 2a76a28314993d27668fc7f9d5b6427facce4318 (diff) | |
[SCSI] lpfc 8.3.33: Add Interrupts per second stats via debugfs
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_sli.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 982bd40353e..83a1c9e4902 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -2825,10 +2825,26 @@ lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) void lpfc_poll_eratt(unsigned long ptr) { struct lpfc_hba *phba; - uint32_t eratt = 0; + uint32_t eratt = 0, rem; + uint64_t sli_intr, cnt; phba = (struct lpfc_hba *)ptr; + /* Here we will also keep track of interrupts per sec of the hba */ + sli_intr = phba->sli.slistat.sli_intr; + + if (phba->sli.slistat.sli_prev_intr > sli_intr) + cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) + + sli_intr); + else + cnt = (sli_intr - phba->sli.slistat.sli_prev_intr); + + /* 64-bit integer division not supporte on 32-bit x86 - use do_div */ + rem = do_div(cnt, LPFC_ERATT_POLL_INTERVAL); + phba->sli.slistat.sli_ips = cnt; + + phba->sli.slistat.sli_prev_intr = sli_intr; + /* Check chip HA register for error event */ eratt = lpfc_sli_check_eratt(phba); |