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[SCSI] bfa: Add support to collect / reset fabric stats. 

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Krishna Gudipati 2011-07-20 17:03:27 -07:00 committed by James Bottomley
parent 3ec4f2c8bf
commit c0350bf574
2 changed files with 66 additions and 0 deletions
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51
drivers/scsi/bfa/bfad_bsg.c
View File

@ -2349,6 +2349,51 @@ out:
return 0;
}
int
bfad_iocmd_vf_get_stats(struct bfad_s *bfad, void *cmd)
{
struct bfa_bsg_vf_stats_s *iocmd =
(struct bfa_bsg_vf_stats_s *)cmd;
struct bfa_fcs_fabric_s *fcs_vf;
unsigned long flags;
spin_lock_irqsave(&bfad->bfad_lock, flags);
fcs_vf = bfa_fcs_vf_lookup(&bfad->bfa_fcs, iocmd->vf_id);
if (fcs_vf == NULL) {
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
iocmd->status = BFA_STATUS_UNKNOWN_VFID;
goto out;
}
memcpy((void *)&iocmd->stats, (void *)&fcs_vf->stats,
sizeof(struct bfa_vf_stats_s));
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
iocmd->status = BFA_STATUS_OK;
out:
return 0;
}
int
bfad_iocmd_vf_clr_stats(struct bfad_s *bfad, void *cmd)
{
struct bfa_bsg_vf_reset_stats_s *iocmd =
(struct bfa_bsg_vf_reset_stats_s *)cmd;
struct bfa_fcs_fabric_s *fcs_vf;
unsigned long flags;
spin_lock_irqsave(&bfad->bfad_lock, flags);
fcs_vf = bfa_fcs_vf_lookup(&bfad->bfa_fcs, iocmd->vf_id);
if (fcs_vf == NULL) {
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
iocmd->status = BFA_STATUS_UNKNOWN_VFID;
goto out;
}
memset((void *)&fcs_vf->stats, 0, sizeof(struct bfa_vf_stats_s));
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
iocmd->status = BFA_STATUS_OK;
out:
return 0;
}
static int
bfad_iocmd_handler(struct bfad_s *bfad, unsigned int cmd, void *iocmd,
unsigned int payload_len)
@ -2661,6 +2706,12 @@ bfad_iocmd_handler(struct bfad_s *bfad, unsigned int cmd, void *iocmd,
case IOCMD_QOS_RESET_STATS:
rc = bfad_iocmd_qos_reset_stats(bfad, iocmd);
break;
case IOCMD_VF_GET_STATS:
rc = bfad_iocmd_vf_get_stats(bfad, iocmd);
break;
case IOCMD_VF_RESET_STATS:
rc = bfad_iocmd_vf_clr_stats(bfad, iocmd);
break;
default:
rc = -EINVAL;
break;

15
drivers/scsi/bfa/bfad_bsg.h
View File

@ -135,6 +135,8 @@ enum {
IOCMD_QOS_GET_VC_ATTR,
IOCMD_QOS_GET_STATS,
IOCMD_QOS_RESET_STATS,
IOCMD_VF_GET_STATS,
IOCMD_VF_RESET_STATS,
};
struct bfa_bsg_gen_s {
@ -686,6 +688,19 @@ struct bfa_bsg_qos_vc_attr_s {
struct bfa_qos_vc_attr_s attr;
};
struct bfa_bsg_vf_stats_s {
bfa_status_t status;
u16 bfad_num;
u16 vf_id;
struct bfa_vf_stats_s stats;
};
struct bfa_bsg_vf_reset_stats_s {
bfa_status_t status;
u16 bfad_num;
u16 vf_id;
};
struct bfa_bsg_fcpt_s {
bfa_status_t status;
u16 vf_id;