From: Long Li <longli@xxxxxxxxxxxxx> Unlike SCSI and FC, we don't use multiple channels for IDE. So set queue depth correctly for IDE. Also set the correct cmd_per_lun for all devices. Signed-off-by: Long Li <longli@xxxxxxxxxxxxx> --- drivers/scsi/storvsc_drv.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 8c51d628b52e..fba170640e9c 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -1722,15 +1722,19 @@ static int storvsc_probe(struct hv_device *device, max_targets = STORVSC_MAX_TARGETS; max_channels = STORVSC_MAX_CHANNELS; /* - * On Windows8 and above, we support sub-channels for storage. + * On Windows8 and above, we support sub-channels for storage + * on SCSI and FC controllers. * The number of sub-channels offerred is based on the number of * VCPUs in the guest. */ - max_sub_channels = (num_cpus / storvsc_vcpus_per_sub_channel); + if (!dev_is_ide) + max_sub_channels = + num_cpus / storvsc_vcpus_per_sub_channel; } scsi_driver.can_queue = (max_outstanding_req_per_channel * (max_sub_channels + 1)); + scsi_driver.cmd_per_lun = scsi_driver.can_queue; host = scsi_host_alloc(&scsi_driver, sizeof(struct hv_host_device)); -- 2.14.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
