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44 SCSI commands ("fabrics"), the Linux kernel target, LIO, also modularizes
104 (mailbox); a lockless producer/consumer circular buffer for commands
110 memory-mapped layout designed for SCSI commands. Using UIO also
128 userspace (respectively) to put commands on the ring, and indicate
129 when the commands are completed.
154 Commands are placed on the ring by the kernel incrementing
159 cmd_tail, the ring is empty -- no commands are currently waiting to be
162 TCMU commands are 8-byte aligned. They start with a common header
176 buffers. For bidirectional commands, iov_cnt specifies how many iovec
190 still process the commands in the same order it appeared in the command
201 commands, if any.
264 - TCMU will post commands, and then abort them after a timeout period
291 c) Managing the command ring: Parsing operations and commands,