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scsi: lpfc: Change VMID registration to be based on fabric parameters

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Currently, VMID registration is configured via module parameters.  This
could lead to VMID compatibility issues if two ports are connected to
different brands of switches, as the two brands implement VMID differently.

Make logical changes so that VMID registration is based on common service
parameters from FLOGI_ACC with fabric rather than module parameters.

Link: https://lore.kernel.org/r/20220506035519.50908-9-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
James Smart 2022-05-05 20:55:15 -07:00 committed by Martin K. Petersen
parent dc8a71bd41
commit 5099478e43
4 changed files with 14 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/scsi/lpfc/lpfc.h
View File

@ -714,6 +714,7 @@ struct lpfc_vport {
#define LPFC_VMID_QFPA_CMPL 0x4
#define LPFC_VMID_QOS_ENABLED 0x8
#define LPFC_VMID_TIMER_ENBLD 0x10
#define LPFC_VMID_TYPE_PRIO 0x20
struct fc_qfpa_res *qfpa_res;
struct fc_vport *fc_vport;

3
drivers/scsi/lpfc/lpfc_els.c
View File

@ -1105,7 +1105,8 @@ stop_rr_fcf_flogi:
sp->cmn.priority_tagging, kref_read(&ndlp->kref));
if (sp->cmn.priority_tagging)
vport->vmid_flag |= LPFC_VMID_ISSUE_QFPA;
vport->phba->pport->vmid_flag |= (LPFC_VMID_ISSUE_QFPA |
LPFC_VMID_TYPE_PRIO);
if (vport->port_state == LPFC_FLOGI) {
/*

17
drivers/scsi/lpfc/lpfc_scsi.c
View File

@ -5344,9 +5344,9 @@ static void lpfc_vmid_update_entry(struct lpfc_vport *vport, struct scsi_cmnd
{
u64 *lta;
if (vport->vmid_priority_tagging)
if (vport->phba->pport->vmid_flag & LPFC_VMID_TYPE_PRIO)
tag->cs_ctl_vmid = vmp->un.cs_ctl_vmid;
else
else if (vport->phba->cfg_vmid_app_header)
tag->app_id = vmp->un.app_id;
if (cmd->sc_data_direction == DMA_TO_DEVICE)
@ -5391,11 +5391,12 @@ static int lpfc_vmid_get_appid(struct lpfc_vport *vport, char *uuid, struct
scsi_cmnd * cmd, union lpfc_vmid_io_tag *tag)
{
struct lpfc_vmid *vmp = NULL;
int hash, len, rc, i;
int hash, len, rc = -EPERM, i;
/* check if QFPA is complete */
if (lpfc_vmid_is_type_priority_tag(vport) && !(vport->vmid_flag &
LPFC_VMID_QFPA_CMPL)) {
if (lpfc_vmid_is_type_priority_tag(vport) &&
!(vport->vmid_flag & LPFC_VMID_QFPA_CMPL) &&
(vport->vmid_flag & LPFC_VMID_ISSUE_QFPA)) {
vport->work_port_events |= WORKER_CHECK_VMID_ISSUE_QFPA;
return -EAGAIN;
}
@ -5469,7 +5470,7 @@ static int lpfc_vmid_get_appid(struct lpfc_vport *vport, char *uuid, struct
vport->vmid_inactivity_timeout ? 1 : 0;
/* if type priority tag, get next available VMID */
if (lpfc_vmid_is_type_priority_tag(vport))
if (vport->phba->pport->vmid_flag & LPFC_VMID_TYPE_PRIO)
lpfc_vmid_assign_cs_ctl(vport, vmp);
/* allocate the per cpu variable for holding */
@ -5488,9 +5489,9 @@ static int lpfc_vmid_get_appid(struct lpfc_vport *vport, char *uuid, struct
write_unlock(&vport->vmid_lock);
/* complete transaction with switch */
if (lpfc_vmid_is_type_priority_tag(vport))
if (vport->phba->pport->vmid_flag & LPFC_VMID_TYPE_PRIO)
rc = lpfc_vmid_uvem(vport, vmp, true);
else
else if (vport->phba->cfg_vmid_app_header)
rc = lpfc_vmid_cmd(vport, SLI_CTAS_RAPP_IDENT, vmp);
if (!rc) {
write_lock(&vport->vmid_lock);

4
drivers/scsi/lpfc/lpfc_sli.c
View File

@ -10377,11 +10377,11 @@ lpfc_prep_embed_io(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd)
/* add the VMID tags as per switch response */
if (unlikely(piocb->cmd_flag & LPFC_IO_VMID)) {
if (phba->pport->vmid_priority_tagging) {
if (phba->pport->vmid_flag & LPFC_VMID_TYPE_PRIO) {
bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
(piocb->vmid_tag.cs_ctl_vmid));
} else {
} else if (phba->cfg_vmid_app_header) {
bf_set(wqe_appid, &wqe->fcp_iwrite.wqe_com, 1);
bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
wqe->words[31] = piocb->vmid_tag.app_id;