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Add Fabric assigned WWN support.

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Adding support for Fabric assigned WWPN and WWNN.

Firmware sends first FLOGI to fabric with vendor version changes.
On link up driver gets updated service parameter with FAWWN assigned port
name.  Driver sends 2nd FLOGI with updated fawwpn and modifies the
vport->fc_portname in driver.

Note:
Soft wwpn will not be allowed when fawwpn is enabled.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
This commit is contained in:
James Smart
2017-04-21 16:05:02 -07:00
committed by Christoph Hellwig
parent 4d4c4a4ac7
commit aeb3c8170b
7 changed files with 65 additions and 12 deletions
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31
drivers/scsi/lpfc/lpfc_init.c
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@@ -335,6 +335,9 @@ lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
void
lpfc_update_vport_wwn(struct lpfc_vport *vport)
{
uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
/* If the soft name exists then update it using the service params */
if (vport->phba->cfg_soft_wwnn)
u64_to_wwn(vport->phba->cfg_soft_wwnn,
@@ -354,9 +357,25 @@ lpfc_update_vport_wwn(struct lpfc_vport *vport)
memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
sizeof(struct lpfc_name));
if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
/*
* If the port name has changed, then set the Param changes flag
* to unreg the login
*/
if (vport->fc_portname.u.wwn[0] != 0 &&
memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
sizeof(struct lpfc_name)))
vport->vport_flag |= FAWWPN_PARAM_CHG;
if (vport->fc_portname.u.wwn[0] == 0 ||
vport->phba->cfg_soft_wwpn ||
(vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
vport->vport_flag & FAWWPN_SET) {
memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
sizeof(struct lpfc_name));
vport->vport_flag &= ~FAWWPN_SET;
if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
vport->vport_flag |= FAWWPN_SET;
}
else
memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
sizeof(struct lpfc_name));
@@ -4518,9 +4537,15 @@ lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
/* Parse and translate link attention fields */
la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
la->eventTag = acqe_fc->event_tag;
bf_set(lpfc_mbx_read_top_att_type, la,
LPFC_FC_LA_TYPE_LINK_DOWN);
if (phba->sli4_hba.link_state.status ==
LPFC_FC_LA_TYPE_UNEXP_WWPN) {
bf_set(lpfc_mbx_read_top_att_type, la,
LPFC_FC_LA_TYPE_UNEXP_WWPN);
} else {
bf_set(lpfc_mbx_read_top_att_type, la,
LPFC_FC_LA_TYPE_LINK_DOWN);
}
/* Invoke the mailbox command callback function */
lpfc_mbx_cmpl_read_topology(phba, pmb);