diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_init.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_init.c | 19 |
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 |