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Commit 4b40c59e authored by James Smart's avatar James Smart Committed by James Bottomley
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[SCSI] lpfc 8.3.11: NPIV changes 



- Enable NPIV by default.
- Added code to handle unsolicited LOGO on physical port.

Signed-off-by: default avatarAlex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: default avatarJames Smart <james.smart@emulex.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent e2af0d2e

drivers/scsi/lpfc/lpfc.h

+2 −0
Original line number Diff line number Diff line
@@ -310,7 +310,9 @@ struct lpfc_vport { 
#define FC_NLP_MORE             0x40	 /* More node to process in node tbl */

#define FC_OFFLINE_MODE         0x80	 /* Interface is offline for diag */

#define FC_FABRIC               0x100	 /* We are fabric attached */

#define FC_VPORT_LOGO_RCVD      0x200    /* LOGO received on vport */

#define FC_RSCN_DISCOVERY       0x400	 /* Auth all devices after RSCN */

#define FC_LOGO_RCVD_DID_CHNG   0x800    /* FDISC on phys port detect DID chng*/

#define FC_SCSI_SCAN_TMO        0x4000	 /* scsi scan timer running */

#define FC_ABORT_DISCOVERY      0x8000	 /* we want to abort discovery */

#define FC_NDISC_ACTIVE         0x10000	 /* NPort discovery active */

drivers/scsi/lpfc/lpfc_attr.c

+1 −1
Original line number Diff line number Diff line
@@ -1929,7 +1929,7 @@ int lpfc_enable_npiv = 0; 
module_param(lpfc_enable_npiv, int, 0);

MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");

lpfc_param_show(enable_npiv);

lpfc_param_init(enable_npiv, 0, 0, 1);

lpfc_param_init(enable_npiv, 1, 0, 1);

static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO,

			 lpfc_enable_npiv_show, NULL);

drivers/scsi/lpfc/lpfc_els.c

+6 −1
Original line number Diff line number Diff line
@@ -864,6 +864,7 @@ lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 
	}

	spin_lock_irq(shost->host_lock);

	vport->fc_flag &= ~FC_VPORT_CVL_RCVD;

	vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;

	spin_unlock_irq(shost->host_lock);



	/*
@@ -6053,7 +6054,8 @@ lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 
			spin_lock_irq(shost->host_lock);

			vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;

			spin_unlock_irq(shost->host_lock);

			if (vport->port_type == LPFC_PHYSICAL_PORT)

			if (vport->port_type == LPFC_PHYSICAL_PORT

				&& !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))

				lpfc_initial_flogi(vport);

			else

				lpfc_initial_fdisc(vport);
@@ -6289,6 +6291,7 @@ lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 
	}

	spin_lock_irq(shost->host_lock);

	vport->fc_flag &= ~FC_VPORT_CVL_RCVD;

	vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;

	vport->fc_flag |= FC_FABRIC;

	if (vport->phba->fc_topology == TOPOLOGY_LOOP)

		vport->fc_flag |=  FC_PUBLIC_LOOP;
@@ -6318,6 +6321,8 @@ lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 
		vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;

		if (phba->sli_rev == LPFC_SLI_REV4)

			vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;

		else

			vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG;

		spin_unlock_irq(shost->host_lock);

	}

drivers/scsi/lpfc/lpfc_hbadisc.c

+6 −1
Original line number Diff line number Diff line
@@ -3016,7 +3016,12 @@ lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 
	lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);



	if (vport->port_state == LPFC_FABRIC_CFG_LINK) {

		/* when physical port receive logo donot start

		 * vport discovery */

		if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))

			lpfc_start_fdiscs(phba);

		else

			vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;

		lpfc_do_scr_ns_plogi(phba, vport);

	}

drivers/scsi/lpfc/lpfc_nportdisc.c

+38 −5
Original line number Diff line number Diff line
@@ -493,6 +493,9 @@ lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 
	      struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)

{

	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);

	struct lpfc_hba    *phba = vport->phba;

	struct lpfc_vport **vports;

	int i, active_vlink_present = 0 ;



	/* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */

	/* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
@@ -505,15 +508,44 @@ lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 
		lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);

	else

		lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);

	if ((ndlp->nlp_DID == Fabric_DID) &&

		vport->port_type == LPFC_NPIV_PORT) {

	if (ndlp->nlp_DID == Fabric_DID) {

		if (vport->port_state <= LPFC_FDISC)

			goto out;

		lpfc_linkdown_port(vport);

		mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);

		spin_lock_irq(shost->host_lock);

		ndlp->nlp_flag |= NLP_DELAY_TMO;

		vport->fc_flag |= FC_VPORT_LOGO_RCVD;

		spin_unlock_irq(shost->host_lock);

		vports = lpfc_create_vport_work_array(phba);

		if (vports) {

			for (i = 0; i <= phba->max_vports && vports[i] != NULL;

					i++) {

				if ((!(vports[i]->fc_flag &

					FC_VPORT_LOGO_RCVD)) &&

					(vports[i]->port_state > LPFC_FDISC)) {

					active_vlink_present = 1;

					break;

				}

			}

			lpfc_destroy_vport_work_array(phba, vports);

		}



		if (active_vlink_present) {

			/*

			 * If there are other active VLinks present,

			 * re-instantiate the Vlink using FDISC.

			 */

			mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);

			spin_lock_irq(shost->host_lock);

			ndlp->nlp_flag |= NLP_DELAY_TMO;

			spin_unlock_irq(shost->host_lock);

			ndlp->nlp_last_elscmd = ELS_CMD_FDISC;

			vport->port_state = LPFC_FDISC;

		} else {

			spin_lock_irq(shost->host_lock);

			phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG;

			spin_unlock_irq(shost->host_lock);

			lpfc_retry_pport_discovery(phba);

		}

	} else if ((!(ndlp->nlp_type & NLP_FABRIC) &&

		((ndlp->nlp_type & NLP_FCP_TARGET) ||

		!(ndlp->nlp_type & NLP_FCP_INITIATOR))) ||
@@ -526,6 +558,7 @@ lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 


		ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;

	}

out:

	ndlp->nlp_prev_state = ndlp->nlp_state;

	lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);