diff options
Diffstat (limited to 'Documentation/scsi/scsi_mid_low_api.txt')
| -rw-r--r-- | Documentation/scsi/scsi_mid_low_api.txt | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/Documentation/scsi/scsi_mid_low_api.txt b/Documentation/scsi/scsi_mid_low_api.txt index bee7d86b9dcc..731bc4f4c5e6 100644 --- a/Documentation/scsi/scsi_mid_low_api.txt +++ b/Documentation/scsi/scsi_mid_low_api.txt @@ -149,7 +149,7 @@ scsi_add_host() ----> scsi_scan_host() -------+ | slave_alloc() - slave_configure() --> scsi_adjust_queue_depth() + slave_configure() --> scsi_change_queue_depth() | slave_alloc() slave_configure() @@ -159,7 +159,7 @@ scsi_scan_host() -------+ ------------------------------------------------------------ If the LLD wants to adjust the default queue settings, it can invoke -scsi_adjust_queue_depth() in its slave_configure() routine. +scsi_change_queue_depth() in its slave_configure() routine. *** For scsi devices that the mid level tries to scan but do not respond, a slave_alloc(), slave_destroy() pair is called. @@ -203,7 +203,7 @@ LLD mid level LLD scsi_add_device() ------+ | slave_alloc() - slave_configure() [--> scsi_adjust_queue_depth()] + slave_configure() [--> scsi_change_queue_depth()] ------------------------------------------------------------ In a similar fashion, an LLD may become aware that a SCSI device has been @@ -261,7 +261,7 @@ init_this_scsi_driver() ----+ | scsi_register() | slave_alloc() - slave_configure() --> scsi_adjust_queue_depth() + slave_configure() --> scsi_change_queue_depth() slave_alloc() *** slave_destroy() *** | @@ -271,7 +271,7 @@ init_this_scsi_driver() ----+ slave_destroy() *** ------------------------------------------------------------ -The mid level invokes scsi_adjust_queue_depth() with "cmd_per_lun" for that +The mid level invokes scsi_change_queue_depth() with "cmd_per_lun" for that host as the queue length. These settings can be overridden by a slave_configure() supplied by the LLD. @@ -368,7 +368,7 @@ names all start with "scsi_". Summary: scsi_add_device - creates new scsi device (lu) instance scsi_add_host - perform sysfs registration and set up transport class - scsi_adjust_queue_depth - change the queue depth on a SCSI device + scsi_change_queue_depth - change the queue depth on a SCSI device scsi_bios_ptable - return copy of block device's partition table scsi_block_requests - prevent further commands being queued to given host scsi_host_alloc - return a new scsi_host instance whose refcount==1 @@ -436,7 +436,7 @@ int scsi_add_host(struct Scsi_Host *shost, struct device * dev) /** - * scsi_adjust_queue_depth - allow LLD to change queue depth on a SCSI device + * scsi_change_queue_depth - allow LLD to change queue depth on a SCSI device * @sdev: pointer to SCSI device to change queue depth on * @tags Number of tags allowed if tagged queuing enabled, * or number of commands the LLD can queue up @@ -453,7 +453,7 @@ int scsi_add_host(struct Scsi_Host *shost, struct device * dev) * Defined in: drivers/scsi/scsi.c [see source code for more notes] * **/ -void scsi_adjust_queue_depth(struct scsi_device *sdev, int tags) +int scsi_change_queue_depth(struct scsi_device *sdev, int tags) /** @@ -1214,7 +1214,7 @@ of interest: for disk firmware uploads. cmd_per_lun - maximum number of commands that can be queued on devices controlled by the host. Overridden by LLD calls to - scsi_adjust_queue_depth(). + scsi_change_queue_depth(). unchecked_isa_dma - 1=>only use bottom 16 MB of ram (ISA DMA addressing restriction), 0=>can use full 32 bit (or better) DMA address space @@ -1254,7 +1254,7 @@ struct scsi_cmnd Instances of this structure convey SCSI commands to the LLD and responses back to the mid level. The SCSI mid level will ensure that no more SCSI commands become queued against the LLD than are indicated by -scsi_adjust_queue_depth() (or struct Scsi_Host::cmd_per_lun). There will +scsi_change_queue_depth() (or struct Scsi_Host::cmd_per_lun). There will be at least one instance of struct scsi_cmnd available for each SCSI device. Members of interest: cmnd - array containing SCSI command |