From: Bradley Grove <bgrove@xxxxxxxxxxxx> During hibernation, the HBA firmware may lose power and forget the device id info. This causes the HBA to reject IO upon resume. The fix is to call the libsas power management routines to make the domain device forgetful. This patch also changes the value of pm8001_flags during resume to allow completions to work. This fixes bug 76681: https://bugzilla.kernel.org/show_bug.cgi?id=76681 Signed-off-by: Bradley Grove <bgrove@xxxxxxxxxxxx> --- drivers/scsi/pm8001/pm8001_init.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c index c4f31b21..9f51a1f 100644 --- a/drivers/scsi/pm8001/pm8001_init.c +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -957,6 +957,7 @@ static int pm8001_pci_suspend(struct pci_dev *pdev, pm_message_t state) int i, j; u32 device_state; pm8001_ha = sha->lldd_ha; + sas_suspend_ha(sha); flush_workqueue(pm8001_wq); scsi_block_requests(pm8001_ha->shost); if (!pdev->pm_cap) { @@ -1026,7 +1027,7 @@ static int pm8001_pci_resume(struct pci_dev *pdev) rc = pci_go_44(pdev); if (rc) goto err_out_disable; - + sas_prep_resume_ha(sha); /* chip soft rst only for spc */ if (pm8001_ha->chip_id == chip_8001) { PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha); @@ -1058,7 +1059,12 @@ static int pm8001_pci_resume(struct pci_dev *pdev) for (i = 1; i < pm8001_ha->number_of_intr; i++) PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, i); } + pm8001_ha->flags = PM8001F_INIT_TIME; scsi_unblock_requests(pm8001_ha->shost); + pm8001_scan_start(pm8001_ha->shost); + msleep(100); + sas_resume_ha(sha); + pm8001_ha->flags = PM8001F_RUN_TIME; return 0; err_out_disable: -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
