Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit aa6fbb75 authored by James Smart's avatar James Smart Committed by James Bottomley
Browse files

[SCSI] lpfc 8.3.33: Add Interrupts per second stats via debugfs 



Signed-off-by: default avatarJames Smart <james.smart@emulex.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent 2a76a283

drivers/scsi/lpfc/lpfc_sli.c

+17 −1
Original line number Diff line number Diff line
@@ -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);

drivers/scsi/lpfc/lpfc_sli.h

+2 −0
Original line number Diff line number Diff line
@@ -255,6 +255,8 @@ struct lpfc_sli_stat { 
	uint64_t mbox_stat_err;  /* Mbox cmds completed status error */

	uint64_t mbox_cmd;       /* Mailbox commands issued */

	uint64_t sli_intr;       /* Count of Host Attention interrupts */

	uint64_t sli_prev_intr;  /* Previous cnt of Host Attention interrupts */

	uint64_t sli_ips;        /* Host Attention interrupts per sec */

	uint32_t err_attn_event; /* Error Attn event counters */

	uint32_t link_event;     /* Link event counters */

	uint32_t mbox_event;     /* Mailbox event counters */