diff options
Diffstat (limited to 'drivers/scsi/storvsc_drv.c')
| -rw-r--r-- | drivers/scsi/storvsc_drv.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 2e4fa77445fd..2d9dd30cc921 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -2161,12 +2161,15 @@ static int __init storvsc_drv_init(void) * than the ring buffer size since that page is reserved for * the ring buffer indices) by the max request size (which is * vmbus_channel_packet_multipage_buffer + struct vstor_packet + u64) + * + * The computation underestimates max_outstanding_req_per_channel + * for Win7 and older hosts because it does not take into account + * the vmscsi_size_delta correction to the max request size. */ max_outstanding_req_per_channel = ((storvsc_ringbuffer_size - PAGE_SIZE) / ALIGN(MAX_MULTIPAGE_BUFFER_PACKET + - sizeof(struct vstor_packet) + sizeof(u64) - - vmscsi_size_delta, + sizeof(struct vstor_packet) + sizeof(u64), sizeof(u64))); #if IS_ENABLED(CONFIG_SCSI_FC_ATTRS) |