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Commit c0350bf5 authored by Krishna Gudipati's avatar Krishna Gudipati Committed by James Bottomley
Browse files

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



Signed-off-by: default avatarKrishna Gudipati <kgudipat@brocade.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent 3ec4f2c8

drivers/scsi/bfa/bfad_bsg.c

+51 −0
Original line number Diff line number Diff line
@@ -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;

drivers/scsi/bfa/bfad_bsg.h

+15 −0
Original line number Diff line number Diff line
@@ -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;