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path: root/drivers/scsi/lpfc/lpfc_init.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_init.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_init.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 4644cea2e5ce..05fbb4765d70 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -9135,6 +9135,20 @@ lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
void
lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
{
+ /*
+ * Set FREE_INIT before beginning to free the queues.
+ * Wait until the users of queues to acknowledge to
+ * release queues by clearing FREE_WAIT.
+ */
+ spin_lock_irq(&phba->hbalock);
+ phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
+ while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
+ spin_unlock_irq(&phba->hbalock);
+ msleep(20);
+ spin_lock_irq(&phba->hbalock);
+ }
+ spin_unlock_irq(&phba->hbalock);
+
/* Release HBA eqs */
if (phba->sli4_hba.hdwq)
lpfc_sli4_release_hdwq(phba);
@@ -9173,6 +9187,11 @@ lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
/* Everything on this list has been freed */
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
+
+ /* Done with freeing the queues */
+ spin_lock_irq(&phba->hbalock);
+ phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
+ spin_unlock_irq(&phba->hbalock);
}
int