scsi/isci/request.h

7  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
20  * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
21  * The full GNU General Public License is included in this distribution
26  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
64  * isci_stp_request - extra request infrastructure to handle pio/atapi protocol
65  * @pio_len - number of bytes requested at PIO setup
66  * @status - pio setup ending status value to tell us if we need
69  * @sgl - track pio transfer progress as we iterate through the sgl
92 	/* XXX kill ttype and ttype_ptr, allocate full sas_task */
103 	 * - TMF requests are completed in the thread that started them;
104 	 * - regular requests are completed in the request completion callback
125 	/* This field is a pointer to the stored rx frame data.  It is used in
127 	 * non-NULL the saved frame must be released on IO request completion.
159  * enum sci_base_request_states - request state machine states
178  * waiting for either a PIO Setup FIS or a D2H register FIS.  The type of frame
179  * received is based on the result of the prior frame and line conditions.
182  * waiting for a DATA frame from the device.
185  * waiting to transmit the next data frame to the device.
193  * @SCI_REQ_ATAPI_WAIT_D2H: The non-data IO transit to this state in this state
195  * waiting for D2H status frame as UF.
198  * task context completion after every frame submission, so in the
199  * non-accelerated case we need to expect the completion for the "cdb" frame.
201  * @SCI_REQ_TASK_WAIT_TC_COMP: The AWAIT_TC_COMPLETION sub-state indicates that
203  * the initial frame (i.e. command, task, etc.).
205  * @SCI_REQ_TASK_WAIT_TC_RESP: This sub-state indicates that the started task
206  * management request is waiting for the reception of an unsolicited frame
209  * @SCI_REQ_SMP_WAIT_RESP: This sub-state indicates that the started task
210  * management request is waiting for the reception of an unsolicited frame
213  * @SCI_REQ_SMP_WAIT_TC_COMP: The AWAIT_TC_COMPLETION sub-state indicates that
214  * the started SMP request is waiting for the transmission of the initial frame
281 	BUG_ON((requested_addr - base_addr) >= sizeof(*ireq));  in sci_io_request_get_dma_addr()
283 	return ireq->request_daddr + (requested_addr - base_addr);  in sci_io_request_get_dma_addr()
286 #define isci_request_access_task(req) ((req)->ttype_ptr.io_task_ptr)
288 #define isci_request_access_tmf(req) ((req)->ttype_ptr.tmf_task_ptr)
308 	return (sas_protocol_ata(task->task_proto) &&  in isci_task_is_ncq_recovery()
309 		task->ata_task.fis.command == ATA_CMD_READ_LOG_EXT &&  in isci_task_is_ncq_recovery()
310 		task->ata_task.fis.lbal == ATA_LOG_SATA_NCQ);  in isci_task_is_ncq_recovery()