diff options
Diffstat (limited to 'include/scsi')
-rw-r--r-- | include/scsi/scsi_cmnd.h | 1 | ||||
-rw-r--r-- | include/scsi/scsi_device.h | 3 | ||||
-rw-r--r-- | include/scsi/scsi_host.h | 7 |
3 files changed, 11 insertions, 0 deletions
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h index 80ac89e47b47..f93c0b800790 100644 --- a/include/scsi/scsi_cmnd.h +++ b/include/scsi/scsi_cmnd.h @@ -142,6 +142,7 @@ struct scsi_cmnd { unsigned long state; /* Command completion state */ unsigned char tag; /* SCSI-II queued command tag */ + unsigned int extra_len; /* length of alignment and padding */ }; /* diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index c3cba2aaf934..bc5909033d13 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -229,6 +229,9 @@ struct scsi_device { struct scsi_device_handler *handler; void *handler_data; + size_t dma_drain_len; + void *dma_drain_buf; + unsigned char access_state; struct mutex state_mutex; enum scsi_device_state sdev_state; diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 822e8cda8d9b..46ef8cccc982 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -271,6 +271,13 @@ struct scsi_host_template { int (* map_queues)(struct Scsi_Host *shost); /* + * Check if scatterlists need to be padded for DMA draining. + * + * Status: OPTIONAL + */ + bool (* dma_need_drain)(struct request *rq); + + /* * This function determines the BIOS parameters for a given * harddisk. These tend to be numbers that are made up by * the host adapter. Parameters: |