Scsi - Index of

69 * Ioctl interface
70 *
71 * Status: OPTIONAL
72 */
73 int (* ioctl)(struct scsi_device *dev, int cmd, void __user *arg);
74
75 /*
76 * The queuecommand function is used to queue up a scsi
77 * command block to the LLDD. When the driver finished
78 * processing the command the done callback is invoked.
79 *
80 * If queuecommand returns 0, then the HBA has accepted the
81 * command. The done() function must be called on the command
82 * when the driver has finished with it. (you may call done on the
83 * command before queuecommand returns, but in this case you
84 * *must* return 0 from queuecommand).
85 *
86 * Queuecommand may also reject the command, in which case it may
87 * not touch the command and must not call done() for it.
88 *
89 * There are two possible rejection returns:
90 *
91 * SCSI_MLQUEUE_DEVICE_BUSY: Block this device temporarily, but
92 * allow commands to other devices serviced by this host.
93 *
94 * SCSI_MLQUEUE_HOST_BUSY: Block all devices served by this
95 * host temporarily.
96 *
97 * For compatibility, any other non-zero return is treated the
98 * same as SCSI_MLQUEUE_HOST_BUSY.
99 *
100 * NOTE: "temporarily" means either until the next command for#
101 * this device/host completes, or a period of time determined by
102 * I/O pressure in the system if there are no other outstanding
103 * commands.
104 *
105 * STATUS: REQUIRED
106 */
107 int (* queuecommand)(struct scsi_cmnd *,
108 void (*done)(struct scsi_cmnd *));
96
109
110 /*
111 * This is an error handling strategy routine. You don't need to