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Commit b85daafe authored by Krishna Gudipati's avatar Krishna Gudipati Committed by James Bottomley
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[SCSI] bfa: Add BSG interface to support ELS, CT and vendor commands. 



- Added BSG interface support to BFA driver
- Adds support to send ELS/CT FC passthru commands and
  few vendor specific BSG requests.

Signed-off-by: default avatarKrishna Gudipati <kgudipat@brocade.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent 75332a70

drivers/scsi/bfa/Makefile

+1 −1
Original line number Diff line number Diff line 
obj-$(CONFIG_SCSI_BFA_FC) := bfa.o



bfa-y := bfad.o bfad_im.o bfad_attr.o bfad_debugfs.o

bfa-y := bfad.o bfad_im.o bfad_attr.o bfad_debugfs.o bfad_bsg.o

bfa-y += bfa_ioc.o bfa_ioc_cb.o bfa_ioc_ct.o bfa_hw_cb.o bfa_hw_ct.o

bfa-y += bfa_fcs.o bfa_fcs_lport.o bfa_fcs_rport.o bfa_fcs_fcpim.o bfa_fcbuild.o

bfa-y += bfa_port.o bfa_fcpim.o bfa_core.o bfa_svc.o

drivers/scsi/bfa/bfa_defs.h

+3 −0
Original line number Diff line number Diff line
@@ -130,6 +130,7 @@ enum bfa_status { 
	BFA_STATUS_ETIMER	= 5,	/*  Timer expired - Retry, if persists,

					 *  contact support */

	BFA_STATUS_EPROTOCOL	= 6,	/*  Protocol error */

	BFA_STATUS_UNKNOWN_VFID = 11,	/*  VF_ID not found */

	BFA_STATUS_DEVBUSY	= 13,	/*  Device busy - Retry operation */

	BFA_STATUS_UNKNOWN_LWWN = 18,	/*  LPORT PWWN not found */

	BFA_STATUS_UNKNOWN_RWWN = 19,	/*  RPORT PWWN not found */
@@ -138,11 +139,13 @@ enum bfa_status { 
	BFA_STATUS_UNSUPP_SPEED	= 23,	/*  Invalid Speed Check speed setting */

	BFA_STATUS_INVLD_DFSZ	= 24,	/*  Invalid Max data field size */

	BFA_STATUS_FABRIC_RJT	= 29,	/*  Reject from attached fabric */

	BFA_STATUS_PORT_OFFLINE = 34,	/*  Port is not online */

	BFA_STATUS_VPORT_WWN_BP	= 46,	/*  WWN is same as base port's WWN */

	BFA_STATUS_NO_FCPIM_NEXUS = 52,	/* No FCP Nexus exists with the rport */

	BFA_STATUS_IOC_FAILURE	= 56,	/* IOC failure - Retry, if persists

					 * contact support */

	BFA_STATUS_INVALID_WWN	= 57,	/*  Invalid WWN */

	BFA_STATUS_VERSION_FAIL = 70, /* Application/Driver version mismatch */

	BFA_STATUS_DIAG_BUSY	= 71,	/*  diag busy */

	BFA_STATUS_ENOFSAVE	= 78,	/*  No saved firmware trace */

	BFA_STATUS_IOC_DISABLED = 82,   /* IOC is already disabled */

drivers/scsi/bfa/bfa_fcs.c

+39 −0
Original line number Diff line number Diff line
@@ -1369,6 +1369,45 @@ bfa_fcs_vf_lookup(struct bfa_fcs_s *fcs, u16 vf_id) 
	return NULL;

}



/*

 *	Return the list of local logical ports present in the given VF.

 *

 *	@param[in]	vf	vf for which logical ports are returned

 *	@param[out]	lpwwn	returned logical port wwn list

 *	@param[in,out]	nlports in:size of lpwwn list;

 *				out:total elements present,

 *				actual elements returned is limited by the size

 */

void

bfa_fcs_vf_get_ports(bfa_fcs_vf_t *vf, wwn_t lpwwn[], int *nlports)

{

	struct list_head *qe;

	struct bfa_fcs_vport_s *vport;

	int	i = 0;

	struct bfa_fcs_s	*fcs;



	if (vf == NULL || lpwwn == NULL || *nlports == 0)

		return;



	fcs = vf->fcs;



	bfa_trc(fcs, vf->vf_id);

	bfa_trc(fcs, (uint32_t) *nlports);



	lpwwn[i++] = vf->bport.port_cfg.pwwn;



	list_for_each(qe, &vf->vport_q) {

		if (i >= *nlports)

			break;



		vport = (struct bfa_fcs_vport_s *) qe;

		lpwwn[i++] = vport->lport.port_cfg.pwwn;

	}



	bfa_trc(fcs, i);

	*nlports = i;

}



/*

 * BFA FCS PPORT ( physical port)

 */

drivers/scsi/bfa/bfa_fcs.h

+1 −0
Original line number Diff line number Diff line
@@ -731,6 +731,7 @@ void bfa_fcs_exit(struct bfa_fcs_s *fcs); 
 * bfa fcs vf public functions

 */

bfa_fcs_vf_t *bfa_fcs_vf_lookup(struct bfa_fcs_s *fcs, u16 vf_id);

void bfa_fcs_vf_get_ports(bfa_fcs_vf_t *vf, wwn_t vpwwn[], int *nports);



/*

 * fabric protected interface functions

drivers/scsi/bfa/bfad_attr.c

+2 −0
Original line number Diff line number Diff line
@@ -583,6 +583,8 @@ struct fc_function_template bfad_im_fc_function_template = { 
	.vport_create = bfad_im_vport_create,

	.vport_delete = bfad_im_vport_delete,

	.vport_disable = bfad_im_vport_disable,

	.bsg_request = bfad_im_bsg_request,

	.bsg_timeout = bfad_im_bsg_timeout,

};



struct fc_function_template bfad_im_vport_fc_function_template = {