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scsi: lpfc: Reinitialize internal VMID data structures after FLOGI completion 

After enabling VMID, an issue LIP test was erasing fabric switch VMID
information.

Introduce a lpfc_reinit_vmid() routine, which reinitializes all VMID data
structures upon FLOGI completion in fabric topology.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Justin Tee 2023-01-09 15:33:14 -08:00 committed by Martin K. Petersen
parent 21681b81b9
commit f1d2337d3e
3 changed files with 43 additions and 0 deletions
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1
drivers/scsi/lpfc/lpfc_crtn.h
View File

@ -683,6 +683,7 @@ int lpfc_vmid_get_appid(struct lpfc_vport *vport, char *uuid,
union lpfc_vmid_io_tag *tag);
void lpfc_vmid_vport_cleanup(struct lpfc_vport *vport);
int lpfc_issue_els_qfpa(struct lpfc_vport *vport);
void lpfc_reinit_vmid(struct lpfc_vport *vport);
void lpfc_sli_rpi_release(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp);

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

@ -1123,6 +1123,9 @@ stop_rr_fcf_flogi:
if (sp->cmn.priority_tagging)
vport->phba->pport->vmid_flag |= (LPFC_VMID_ISSUE_QFPA |
LPFC_VMID_TYPE_PRIO);
/* reinitialize the VMID datastructure before returning */
if (lpfc_is_vmid_enabled(phba))
lpfc_reinit_vmid(vport);
/*
* Address a timing race with dev_loss. If dev_loss is active on

39
drivers/scsi/lpfc/lpfc_vmid.c
View File

@ -284,3 +284,42 @@ int lpfc_vmid_get_appid(struct lpfc_vport *vport, char *uuid,
}
return rc;
}
/*
* lpfc_reinit_vmid - reinitializes the vmid data structure
* @vport: pointer to vport data structure
*
* This routine reinitializes the vmid post flogi completion
*
* Return codes
* None
*/
void
lpfc_reinit_vmid(struct lpfc_vport *vport)
{
u32 bucket, i, cpu;
struct lpfc_vmid *cur;
struct lpfc_vmid *vmp = NULL;
struct hlist_node *tmp;
write_lock(&vport->vmid_lock);
vport->cur_vmid_cnt = 0;
for (i = 0; i < vport->max_vmid; i++) {
vmp = &vport->vmid[i];
vmp->flag = LPFC_VMID_SLOT_FREE;
memset(vmp->host_vmid, 0, sizeof(vmp->host_vmid));
vmp->io_rd_cnt = 0;
vmp->io_wr_cnt = 0;
if (vmp->last_io_time)
for_each_possible_cpu(cpu)
*per_cpu_ptr(vmp->last_io_time, cpu) = 0;
}
/* for all elements in the hash table */
if (!hash_empty(vport->hash_table))
hash_for_each_safe(vport->hash_table, bucket, tmp, cur, hnode)
hash_del(&cur->hnode);
write_unlock(&vport->vmid_lock);
}