diff options
Diffstat (limited to 'drivers/scsi/storvsc_drv.c')
| -rw-r--r-- | drivers/scsi/storvsc_drv.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index e6718a74e5da..07149fa72b68 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -406,6 +406,14 @@ static void storvsc_on_channel_callback(void *context); #define STORVSC_IDE_MAX_TARGETS 1 #define STORVSC_IDE_MAX_CHANNELS 1 +/* + * Upper bound on the size of a storvsc packet. vmscsi_size_delta is not + * included in the calculation because it is set after STORVSC_MAX_PKT_SIZE + * is used in storvsc_connect_to_vsp + */ +#define STORVSC_MAX_PKT_SIZE (sizeof(struct vmpacket_descriptor) +\ + sizeof(struct vstor_packet)) + struct storvsc_cmd_request { struct scsi_cmnd *cmd; @@ -701,6 +709,7 @@ static void handle_sc_creation(struct vmbus_channel *new_sc) return; memset(&props, 0, sizeof(struct vmstorage_channel_properties)); + new_sc->max_pkt_size = STORVSC_MAX_PKT_SIZE; /* * The size of vmbus_requestor is an upper bound on the number of requests @@ -1294,6 +1303,7 @@ static int storvsc_connect_to_vsp(struct hv_device *device, u32 ring_size, memset(&props, 0, sizeof(struct vmstorage_channel_properties)); + device->channel->max_pkt_size = STORVSC_MAX_PKT_SIZE; /* * The size of vmbus_requestor is an upper bound on the number of requests * that can be in-progress at any one time across all channels. |