Commit 191da2c7 authored by Justin Tee's avatar Justin Tee Committed by Martin K. Petersen
Browse files

scsi: lpfc: Add capability to register Platform Name ID to fabric 



FC-LS and FC-GS specifications outline fields for registering a platform
name identifier (PNI) to the fabric.  The PNI assists fabrics with
identifying the physical server source of frames in the fabric.

lpfc generates a PNI based partially on the uuid specific for the
system.  Initial attempts to extract a uuid are made from SMBIOS's
System Information 08h uuid entry.  If SMBIOS DMI does not exist, a PNI
is not generated and PNI registration with the fabric is skipped.

The PNI is submitted in FLOGI and FDISC frames.  After successful fabric
login, the RSPNI_PNI CT frame is submitted to the fabric to register the
OS host name tying it to the PNI.

Signed-off-by: default avatarJustin Tee <justin.tee@broadcom.com>
Link: https://patch.msgid.link/20251106224639.139176-10-justintee8345@gmail.com


Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 683df5fc

drivers/scsi/lpfc/lpfc.h

+3 −0
Original line number Diff line number Diff line
@@ -633,6 +633,7 @@ struct lpfc_vport { 
#define FC_CT_RSPN_ID		0x8	 /* RSPN_ID accepted by switch */

#define FC_CT_RFT_ID		0x10	 /* RFT_ID accepted by switch */

#define FC_CT_RPRT_DEFER	0x20	 /* Defer issuing FDMI RPRT */

#define FC_CT_RSPNI_PNI		0x40	 /* RSPNI_PNI accepted by switch */



	struct list_head fc_nodes;

	spinlock_t fc_nodes_list_lock; /* spinlock for fc_nodes list */
@@ -1077,6 +1078,8 @@ struct lpfc_hba { 


	uint32_t nport_event_cnt;	/* timestamp for nlplist entry */



	unsigned long pni;		/* 64-bit Platform Name Identifier */



	uint8_t  wwnn[8];

	uint8_t  wwpn[8];

	uint32_t RandomData[7];

drivers/scsi/lpfc/lpfc_ct.c

+36 −0
Original line number Diff line number Diff line
@@ -1742,6 +1742,28 @@ lpfc_cmpl_ct_cmd_rsnn_nn(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 
	return;

}



static void

lpfc_cmpl_ct_cmd_rspni_pni(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,

			   struct lpfc_iocbq *rspiocb)

{

	struct lpfc_vport *vport;

	struct lpfc_dmabuf *outp;

	struct lpfc_sli_ct_request *ctrsp;

	u32 ulp_status;



	vport = cmdiocb->vport;

	ulp_status = get_job_ulpstatus(phba, rspiocb);



	if (ulp_status == IOSTAT_SUCCESS) {

		outp = cmdiocb->rsp_dmabuf;

		ctrsp = (struct lpfc_sli_ct_request *)outp->virt;

		if (be16_to_cpu(ctrsp->CommandResponse.bits.CmdRsp) ==

		    SLI_CT_RESPONSE_FS_ACC)

			vport->ct_flags |= FC_CT_RSPNI_PNI;

	}

	lpfc_cmpl_ct(phba, cmdiocb, rspiocb);

}



static void

lpfc_cmpl_ct_cmd_da_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,

 struct lpfc_iocbq *rspiocb)
@@ -1956,6 +1978,8 @@ lpfc_ns_cmd(struct lpfc_vport *vport, int cmdcode, 
		bpl->tus.f.bdeSize = RSPN_REQUEST_SZ;

	else if (cmdcode == SLI_CTNS_RSNN_NN)

		bpl->tus.f.bdeSize = RSNN_REQUEST_SZ;

	else if (cmdcode == SLI_CTNS_RSPNI_PNI)

		bpl->tus.f.bdeSize = RSPNI_REQUEST_SZ;

	else if (cmdcode == SLI_CTNS_DA_ID)

		bpl->tus.f.bdeSize = DA_ID_REQUEST_SZ;

	else if (cmdcode == SLI_CTNS_RFF_ID)
@@ -2077,6 +2101,18 @@ lpfc_ns_cmd(struct lpfc_vport *vport, int cmdcode, 
			CtReq->un.rsnn.symbname, size);

		cmpl = lpfc_cmpl_ct_cmd_rsnn_nn;

		break;

	case SLI_CTNS_RSPNI_PNI:

		vport->ct_flags &= ~FC_CT_RSPNI_PNI;

		CtReq->CommandResponse.bits.CmdRsp =

		    cpu_to_be16(SLI_CTNS_RSPNI_PNI);

		CtReq->un.rspni.pni = cpu_to_be64(phba->pni);

		scnprintf(CtReq->un.rspni.symbname,

			  sizeof(CtReq->un.rspni.symbname), "OS Host Name::%s",

			  phba->os_host_name);

		CtReq->un.rspni.len = strnlen(CtReq->un.rspni.symbname,

					      sizeof(CtReq->un.rspni.symbname));

		cmpl = lpfc_cmpl_ct_cmd_rspni_pni;

		break;

	case SLI_CTNS_DA_ID:

		/* Implement DA_ID Nameserver request */

		CtReq->CommandResponse.bits.CmdRsp =

drivers/scsi/lpfc/lpfc_els.c

+15 −3
Original line number Diff line number Diff line
@@ -650,8 +650,6 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 
		ndlp->nlp_class_sup |= FC_COS_CLASS2;

	if (sp->cls3.classValid)

		ndlp->nlp_class_sup |= FC_COS_CLASS3;

	if (sp->cls4.classValid)

		ndlp->nlp_class_sup |= FC_COS_CLASS4;

	ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |

				sp->cmn.bbRcvSizeLsb;
@@ -1356,6 +1354,14 @@ lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 
		/* Can't do SLI4 class2 without support sequence coalescing */

		sp->cls2.classValid = 0;

		sp->cls2.seqDelivery = 0;



		/* Fill out Auxiliary Parameter Data */

		if (phba->pni) {

			sp->aux.flags =

				AUX_PARM_DATA_VALID | AUX_PARM_PNI_VALID;

			sp->aux.pni = cpu_to_be64(phba->pni);

			sp->aux.npiv_cnt = cpu_to_be16(phba->max_vpi - 1);

		}

	} else {

		/* Historical, setting sequential-delivery bit for SLI3 */

		sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0;
@@ -5657,7 +5663,6 @@ lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, 
			sp->cls1.classValid = 0;

			sp->cls2.classValid = 0;

			sp->cls3.classValid = 0;

			sp->cls4.classValid = 0;



			/* Copy our worldwide names */

			memcpy(&sp->portName, &vport->fc_sparam.portName,
@@ -11510,6 +11515,13 @@ lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 
	sp->cls2.seqDelivery = 1;

	sp->cls3.seqDelivery = 1;



	/* Fill out Auxiliary Parameter Data */

	if (phba->pni) {

		sp->aux.flags =

			AUX_PARM_DATA_VALID | AUX_PARM_PNI_VALID;

		sp->aux.pni = cpu_to_be64(phba->pni);

	}



	pcmd += sizeof(uint32_t); /* CSP Word 2 */

	pcmd += sizeof(uint32_t); /* CSP Word 3 */

	pcmd += sizeof(uint32_t); /* CSP Word 4 */

drivers/scsi/lpfc/lpfc_hbadisc.c

+2 −0
Original line number Diff line number Diff line
@@ -4373,6 +4373,8 @@ lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 
		lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);

		lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);

		lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);

		if (phba->pni)

			lpfc_ns_cmd(vport, SLI_CTNS_RSPNI_PNI, 0, 0);

		lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);



		if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||

drivers/scsi/lpfc/lpfc_hw.h

+24 −1
Original line number Diff line number Diff line
@@ -168,6 +168,11 @@ struct lpfc_sli_ct_request { 
			uint8_t len;

			uint8_t symbname[255];

		} rspn;

		struct rspni {	/* For RSPNI_PNI requests */

			__be64 pni;

			u8 len;

			u8 symbname[255];

		} rspni;

		struct gff {

			uint32_t PortId;

		} gff;
@@ -213,6 +218,8 @@ struct lpfc_sli_ct_request { 
			  sizeof(struct da_id))

#define  RSPN_REQUEST_SZ  (offsetof(struct lpfc_sli_ct_request, un) + \

			   sizeof(struct rspn))

#define  RSPNI_REQUEST_SZ (offsetof(struct lpfc_sli_ct_request, un) + \

			   sizeof(struct rspni))



/*

 * FsType Definitions
@@ -309,6 +316,7 @@ struct lpfc_sli_ct_request { 
#define  SLI_CTNS_RIP_NN      0x0235

#define  SLI_CTNS_RIPA_NN     0x0236

#define  SLI_CTNS_RSNN_NN     0x0239

#define  SLI_CTNS_RSPNI_PNI   0x0240

#define  SLI_CTNS_DA_ID       0x0300



/*
@@ -512,6 +520,21 @@ struct class_parms { 
	uint8_t word3Reserved2;	/* Fc Word 3, bit  0: 7 */

};



enum aux_parm_flags {

	AUX_PARM_PNI_VALID = 0x20,	/* FC Word 0, bit 29 */

	AUX_PARM_DATA_VALID = 0x40,	/* FC Word 0, bit 30 */

};



struct aux_parm {

	u8 flags;	/* FC Word 0, bit 31:24 */

	u8 ext_feat[3];	/* FC Word 0, bit 23:0 */



	__be64 pni;	/* FC Word 1 and 2, platform name identifier */



	__be16 rsvd;	/* FC Word 3, bit 31:16 */

	__be16 npiv_cnt;	/* FC Word 3, bit 15:0 */

} __packed;



struct serv_parm {	/* Structure is in Big Endian format */

	struct csp cmn;

	struct lpfc_name portName;
@@ -519,7 +542,7 @@ struct serv_parm { /* Structure is in Big Endian format */ 
	struct class_parms cls1;

	struct class_parms cls2;

	struct class_parms cls3;

	struct class_parms cls4;

	struct aux_parm aux;

	union {

		uint8_t vendorVersion[16];

		struct {