16f231dda68080759f1aed3769896e94c73099f0fDan Williams/* 26f231dda68080759f1aed3769896e94c73099f0fDan Williams * This file is provided under a dual BSD/GPLv2 license. When using or 36f231dda68080759f1aed3769896e94c73099f0fDan Williams * redistributing this file, you may do so under either license. 46f231dda68080759f1aed3769896e94c73099f0fDan Williams * 56f231dda68080759f1aed3769896e94c73099f0fDan Williams * GPL LICENSE SUMMARY 66f231dda68080759f1aed3769896e94c73099f0fDan Williams * 76f231dda68080759f1aed3769896e94c73099f0fDan Williams * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. 86f231dda68080759f1aed3769896e94c73099f0fDan Williams * 96f231dda68080759f1aed3769896e94c73099f0fDan Williams * This program is free software; you can redistribute it and/or modify 106f231dda68080759f1aed3769896e94c73099f0fDan Williams * it under the terms of version 2 of the GNU General Public License as 116f231dda68080759f1aed3769896e94c73099f0fDan Williams * published by the Free Software Foundation. 126f231dda68080759f1aed3769896e94c73099f0fDan Williams * 136f231dda68080759f1aed3769896e94c73099f0fDan Williams * This program is distributed in the hope that it will be useful, but 146f231dda68080759f1aed3769896e94c73099f0fDan Williams * WITHOUT ANY WARRANTY; without even the implied warranty of 156f231dda68080759f1aed3769896e94c73099f0fDan Williams * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 166f231dda68080759f1aed3769896e94c73099f0fDan Williams * General Public License for more details. 176f231dda68080759f1aed3769896e94c73099f0fDan Williams * 186f231dda68080759f1aed3769896e94c73099f0fDan Williams * You should have received a copy of the GNU General Public License 196f231dda68080759f1aed3769896e94c73099f0fDan Williams * along with this program; if not, write to the Free Software 206f231dda68080759f1aed3769896e94c73099f0fDan Williams * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 216f231dda68080759f1aed3769896e94c73099f0fDan Williams * The full GNU General Public License is included in this distribution 226f231dda68080759f1aed3769896e94c73099f0fDan Williams * in the file called LICENSE.GPL. 236f231dda68080759f1aed3769896e94c73099f0fDan Williams * 246f231dda68080759f1aed3769896e94c73099f0fDan Williams * BSD LICENSE 256f231dda68080759f1aed3769896e94c73099f0fDan Williams * 266f231dda68080759f1aed3769896e94c73099f0fDan Williams * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. 276f231dda68080759f1aed3769896e94c73099f0fDan Williams * All rights reserved. 286f231dda68080759f1aed3769896e94c73099f0fDan Williams * 296f231dda68080759f1aed3769896e94c73099f0fDan Williams * Redistribution and use in source and binary forms, with or without 306f231dda68080759f1aed3769896e94c73099f0fDan Williams * modification, are permitted provided that the following conditions 316f231dda68080759f1aed3769896e94c73099f0fDan Williams * are met: 326f231dda68080759f1aed3769896e94c73099f0fDan Williams * 336f231dda68080759f1aed3769896e94c73099f0fDan Williams * * Redistributions of source code must retain the above copyright 346f231dda68080759f1aed3769896e94c73099f0fDan Williams * notice, this list of conditions and the following disclaimer. 356f231dda68080759f1aed3769896e94c73099f0fDan Williams * * Redistributions in binary form must reproduce the above copyright 366f231dda68080759f1aed3769896e94c73099f0fDan Williams * notice, this list of conditions and the following disclaimer in 376f231dda68080759f1aed3769896e94c73099f0fDan Williams * the documentation and/or other materials provided with the 386f231dda68080759f1aed3769896e94c73099f0fDan Williams * distribution. 396f231dda68080759f1aed3769896e94c73099f0fDan Williams * * Neither the name of Intel Corporation nor the names of its 406f231dda68080759f1aed3769896e94c73099f0fDan Williams * contributors may be used to endorse or promote products derived 416f231dda68080759f1aed3769896e94c73099f0fDan Williams * from this software without specific prior written permission. 426f231dda68080759f1aed3769896e94c73099f0fDan Williams * 436f231dda68080759f1aed3769896e94c73099f0fDan Williams * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 446f231dda68080759f1aed3769896e94c73099f0fDan Williams * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 456f231dda68080759f1aed3769896e94c73099f0fDan Williams * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 466f231dda68080759f1aed3769896e94c73099f0fDan Williams * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 476f231dda68080759f1aed3769896e94c73099f0fDan Williams * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 486f231dda68080759f1aed3769896e94c73099f0fDan Williams * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 496f231dda68080759f1aed3769896e94c73099f0fDan Williams * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 506f231dda68080759f1aed3769896e94c73099f0fDan Williams * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 516f231dda68080759f1aed3769896e94c73099f0fDan Williams * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 526f231dda68080759f1aed3769896e94c73099f0fDan Williams * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 536f231dda68080759f1aed3769896e94c73099f0fDan Williams * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 546f231dda68080759f1aed3769896e94c73099f0fDan Williams */ 556f231dda68080759f1aed3769896e94c73099f0fDan Williams 560d84366fbef557f92ef82ac9a224c57ffb3318bcDan Williams#ifndef _ISCI_REQUEST_H_ 576f231dda68080759f1aed3769896e94c73099f0fDan Williams#define _ISCI_REQUEST_H_ 586f231dda68080759f1aed3769896e94c73099f0fDan Williams 596f231dda68080759f1aed3769896e94c73099f0fDan Williams#include "isci.h" 60ce2b3261b6765c3b80fda95426c73e8d3bb1b035Dan Williams#include "host.h" 61f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams#include "scu_task_context.h" 626f231dda68080759f1aed3769896e94c73099f0fDan Williams 636f231dda68080759f1aed3769896e94c73099f0fDan Williams/** 646f231dda68080759f1aed3769896e94c73099f0fDan Williams * struct isci_request_status - This enum defines the possible states of an I/O 656f231dda68080759f1aed3769896e94c73099f0fDan Williams * request. 666f231dda68080759f1aed3769896e94c73099f0fDan Williams * 676f231dda68080759f1aed3769896e94c73099f0fDan Williams * 686f231dda68080759f1aed3769896e94c73099f0fDan Williams */ 696f231dda68080759f1aed3769896e94c73099f0fDan Williamsenum isci_request_status { 706f231dda68080759f1aed3769896e94c73099f0fDan Williams unallocated = 0x00, 716f231dda68080759f1aed3769896e94c73099f0fDan Williams allocated = 0x01, 726f231dda68080759f1aed3769896e94c73099f0fDan Williams started = 0x02, 736f231dda68080759f1aed3769896e94c73099f0fDan Williams completed = 0x03, 746f231dda68080759f1aed3769896e94c73099f0fDan Williams aborting = 0x04, 756f231dda68080759f1aed3769896e94c73099f0fDan Williams aborted = 0x05, 764dc043c41037fc6e369270daaa626465a8766565Jeff Skirvin terminating = 0x06, 774dc043c41037fc6e369270daaa626465a8766565Jeff Skirvin dead = 0x07 786f231dda68080759f1aed3769896e94c73099f0fDan Williams}; 796f231dda68080759f1aed3769896e94c73099f0fDan Williams 80f1f52e75939b56c40b3d153ae99faf2720250242Dan Williamsenum sci_request_protocol { 81f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams SCIC_NO_PROTOCOL, 82f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams SCIC_SMP_PROTOCOL, 83f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams SCIC_SSP_PROTOCOL, 84f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams SCIC_STP_PROTOCOL 85c72086e3c2897eaca5b99c005dd9844fdc784981Dan Williams}; /* XXX remove me, use sas_task.{dev|task_proto} instead */; 86f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams 87ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williams/** 88ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williams * isci_stp_request - extra request infrastructure to handle pio/atapi protocol 89ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williams * @pio_len - number of bytes requested at PIO setup 90ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williams * @status - pio setup ending status value to tell us if we need 915076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams * to wait for another fis or if the transfer is complete. Upon 92ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williams * receipt of a d2h fis this will be the status field of that fis. 93ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williams * @sgl - track pio transfer progress as we iterate through the sgl 94ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williams */ 95ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williamsstruct isci_stp_request { 96ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williams u32 pio_len; 97ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williams u8 status; 98ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williams 99ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williams struct isci_stp_pio_sgl { 100ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williams int index; 101ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williams u8 set; 102ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williams u32 offset; 103ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williams } sgl; 1045dec6f4e41340196d223caf922578c44dfe2295aDan Williams}; 1055dec6f4e41340196d223caf922578c44dfe2295aDan Williams 1065076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williamsstruct isci_request { 1075076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams enum isci_request_status status; 1085076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams #define IREQ_COMPLETE_IN_TARGET 0 1095076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams #define IREQ_TERMINATED 1 1105076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams #define IREQ_TMF 2 1115076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams #define IREQ_ACTIVE 3 1125076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams unsigned long flags; 1135076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams /* XXX kill ttype and ttype_ptr, allocate full sas_task */ 1145076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams union ttype_ptr_union { 1155076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams struct sas_task *io_task_ptr; /* When ttype==io_task */ 1165076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams struct isci_tmf *tmf_task_ptr; /* When ttype==tmf_task */ 1175076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams } ttype_ptr; 1185076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams struct isci_host *isci_host; 1195076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams /* For use in the requests_to_{complete|abort} lists: */ 1205076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams struct list_head completed_node; 1215076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams /* For use in the reqs_in_process list: */ 1225076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams struct list_head dev_node; 1235076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams spinlock_t state_lock; 1245076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams dma_addr_t request_daddr; 1255076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams dma_addr_t zero_scatter_daddr; 1265076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams unsigned int num_sg_entries; 1275076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams /* Note: "io_request_completion" is completed in two different ways 1285076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams * depending on whether this is a TMF or regular request. 1295076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams * - TMF requests are completed in the thread that started them; 1305076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams * - regular requests are completed in the request completion callback 1315076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams * function. 1325076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams * This difference in operation allows the aborter of a TMF request 1335076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams * to be sure that once the TMF request completes, the I/O that the 1345076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams * TMF was aborting is guaranteed to have completed. 1355076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams * 1365076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams * XXX kill io_request_completion 137f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams */ 1385076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams struct completion *io_request_completion; 139e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski struct sci_base_state_machine sm; 140d9dcb4ba791de2a06b19ac47cd61601cf3d4e208Dan Williams struct isci_host *owning_controller; 14178a6f06e0e82125787d7aa308fe28c2c8381540cDan Williams struct isci_remote_device *target_device; 142f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams u16 io_tag; 143f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams enum sci_request_protocol protocol; 1445076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams u32 scu_status; /* hardware result */ 1455076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams u32 sci_status; /* upper layer disposition */ 146f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams u32 post_context; 147312e0c2455c18716cf640d4336dcb1e9e5053818Dan Williams struct scu_task_context *tc; 148f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams /* could be larger with sg chaining */ 1497c78da3175177c905a75c54b5830029c778494eaDan Williams #define SCU_SGL_SIZE ((SCI_MAX_SCATTER_GATHER_ELEMENTS + 1) / 2) 150f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams struct scu_sgl_element_pair sg_table[SCU_SGL_SIZE] __attribute__ ((aligned(32))); 1515076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams /* This field is a pointer to the stored rx frame data. It is used in 152e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * STP internal requests and SMP response frames. If this field is 153e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * non-NULL the saved frame must be released on IO request completion. 154f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams */ 155f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams u32 saved_rx_frame_index; 156f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams 157f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams union { 158f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams struct { 159f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams union { 160f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams struct ssp_cmd_iu cmd; 161f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams struct ssp_task_iu tmf; 162f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams }; 163f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams union { 164f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams struct ssp_response_iu rsp; 165f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams u8 rsp_buf[SSP_RESP_IU_MAX_SIZE]; 166f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams }; 167f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams } ssp; 168f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams struct { 169ba7cb22342a66505a831bb7e4541fef90e0193c9Dan Williams struct isci_stp_request req; 170f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams struct host_to_dev_fis cmd; 171f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams struct dev_to_host_fis rsp; 172f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams } stp; 173f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams }; 174f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams}; 175f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams 1765076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williamsstatic inline struct isci_request *to_ireq(struct isci_stp_request *stp_req) 17767ea838d17acdad3331aeae848683c768df96aaaDan Williams{ 1785076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams struct isci_request *ireq; 17967ea838d17acdad3331aeae848683c768df96aaaDan Williams 1805076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams ireq = container_of(stp_req, typeof(*ireq), stp.req); 18167ea838d17acdad3331aeae848683c768df96aaaDan Williams return ireq; 18267ea838d17acdad3331aeae848683c768df96aaaDan Williams} 18367ea838d17acdad3331aeae848683c768df96aaaDan Williams 1846f231dda68080759f1aed3769896e94c73099f0fDan Williams/** 185f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams * enum sci_base_request_states - This enumeration depicts all the states for 186f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams * the common request state machine. 187f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams * 188f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams * 189f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams */ 190f1f52e75939b56c40b3d153ae99faf2720250242Dan Williamsenum sci_base_request_states { 191e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski /* 192f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams * Simply the initial state for the base request state machine. 193f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams */ 194e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_INIT, 195f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams 196e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski /* 197e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * This state indicates that the request has been constructed. 198e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * This state is entered from the INITIAL state. 199f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams */ 200e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_CONSTRUCTED, 201f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams 202e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski /* 203e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * This state indicates that the request has been started. This state 204e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * is entered from the CONSTRUCTED state. 205f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams */ 206e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_STARTED, 207f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams 208e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_STP_UDMA_WAIT_TC_COMP, 209e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_STP_UDMA_WAIT_D2H, 2105dec6f4e41340196d223caf922578c44dfe2295aDan Williams 211e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_STP_NON_DATA_WAIT_H2D, 212e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_STP_NON_DATA_WAIT_D2H, 2135dec6f4e41340196d223caf922578c44dfe2295aDan Williams 214e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED, 215e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG, 216e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_STP_SOFT_RESET_WAIT_D2H, 2175dec6f4e41340196d223caf922578c44dfe2295aDan Williams 218e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski /* 219e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * While in this state the IO request object is waiting for the TC 220e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * completion notification for the H2D Register FIS 2215dec6f4e41340196d223caf922578c44dfe2295aDan Williams */ 222e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_STP_PIO_WAIT_H2D, 2235dec6f4e41340196d223caf922578c44dfe2295aDan Williams 224e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski /* 225e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * While in this state the IO request object is waiting for either a 226e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * PIO Setup FIS or a D2H register FIS. The type of frame received is 227e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * based on the result of the prior frame and line conditions. 2285dec6f4e41340196d223caf922578c44dfe2295aDan Williams */ 229e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_STP_PIO_WAIT_FRAME, 2305dec6f4e41340196d223caf922578c44dfe2295aDan Williams 231e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski /* 232e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * While in this state the IO request object is waiting for a DATA 233e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * frame from the device. 2345dec6f4e41340196d223caf922578c44dfe2295aDan Williams */ 235e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_STP_PIO_DATA_IN, 2365dec6f4e41340196d223caf922578c44dfe2295aDan Williams 237e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski /* 238e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * While in this state the IO request object is waiting to transmit 239e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * the next data frame to the device. 2405dec6f4e41340196d223caf922578c44dfe2295aDan Williams */ 241e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_STP_PIO_DATA_OUT, 2425dec6f4e41340196d223caf922578c44dfe2295aDan Williams 243e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski /* 244b50102d3e9a43a75379407c2080f696f61cb286bDan Williams * While in this state the IO request object is waiting for the TC 245b50102d3e9a43a75379407c2080f696f61cb286bDan Williams * completion notification for the H2D Register FIS 246b50102d3e9a43a75379407c2080f696f61cb286bDan Williams */ 247b50102d3e9a43a75379407c2080f696f61cb286bDan Williams SCI_REQ_ATAPI_WAIT_H2D, 248b50102d3e9a43a75379407c2080f696f61cb286bDan Williams 249b50102d3e9a43a75379407c2080f696f61cb286bDan Williams /* 250b50102d3e9a43a75379407c2080f696f61cb286bDan Williams * While in this state the IO request object is waiting for either a 251b50102d3e9a43a75379407c2080f696f61cb286bDan Williams * PIO Setup. 252b50102d3e9a43a75379407c2080f696f61cb286bDan Williams */ 253b50102d3e9a43a75379407c2080f696f61cb286bDan Williams SCI_REQ_ATAPI_WAIT_PIO_SETUP, 254b50102d3e9a43a75379407c2080f696f61cb286bDan Williams 255b50102d3e9a43a75379407c2080f696f61cb286bDan Williams /* 256b50102d3e9a43a75379407c2080f696f61cb286bDan Williams * The non-data IO transit to this state in this state after receiving 257b50102d3e9a43a75379407c2080f696f61cb286bDan Williams * TC completion. While in this state IO request object is waiting for 258b50102d3e9a43a75379407c2080f696f61cb286bDan Williams * D2H status frame as UF. 259b50102d3e9a43a75379407c2080f696f61cb286bDan Williams */ 260b50102d3e9a43a75379407c2080f696f61cb286bDan Williams SCI_REQ_ATAPI_WAIT_D2H, 261b50102d3e9a43a75379407c2080f696f61cb286bDan Williams 262b50102d3e9a43a75379407c2080f696f61cb286bDan Williams /* 263b50102d3e9a43a75379407c2080f696f61cb286bDan Williams * When transmitting raw frames hardware reports task context completion 264b50102d3e9a43a75379407c2080f696f61cb286bDan Williams * after every frame submission, so in the non-accelerated case we need 265b50102d3e9a43a75379407c2080f696f61cb286bDan Williams * to expect the completion for the "cdb" frame. 266b50102d3e9a43a75379407c2080f696f61cb286bDan Williams */ 267b50102d3e9a43a75379407c2080f696f61cb286bDan Williams SCI_REQ_ATAPI_WAIT_TC_COMP, 268b50102d3e9a43a75379407c2080f696f61cb286bDan Williams 269b50102d3e9a43a75379407c2080f696f61cb286bDan Williams /* 270f139303d17c47eff4c5b5407dee0a6d43e8fd146Dan Williams * The AWAIT_TC_COMPLETION sub-state indicates that the started raw 271f139303d17c47eff4c5b5407dee0a6d43e8fd146Dan Williams * task management request is waiting for the transmission of the 272f139303d17c47eff4c5b5407dee0a6d43e8fd146Dan Williams * initial frame (i.e. command, task, etc.). 273f139303d17c47eff4c5b5407dee0a6d43e8fd146Dan Williams */ 274e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_TASK_WAIT_TC_COMP, 275f139303d17c47eff4c5b5407dee0a6d43e8fd146Dan Williams 276e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski /* 277f139303d17c47eff4c5b5407dee0a6d43e8fd146Dan Williams * This sub-state indicates that the started task management request 278f139303d17c47eff4c5b5407dee0a6d43e8fd146Dan Williams * is waiting for the reception of an unsolicited frame 279f139303d17c47eff4c5b5407dee0a6d43e8fd146Dan Williams * (i.e. response IU). 280f139303d17c47eff4c5b5407dee0a6d43e8fd146Dan Williams */ 281e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_TASK_WAIT_TC_RESP, 282f139303d17c47eff4c5b5407dee0a6d43e8fd146Dan Williams 283e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski /* 284c72086e3c2897eaca5b99c005dd9844fdc784981Dan Williams * This sub-state indicates that the started task management request 285c72086e3c2897eaca5b99c005dd9844fdc784981Dan Williams * is waiting for the reception of an unsolicited frame 286c72086e3c2897eaca5b99c005dd9844fdc784981Dan Williams * (i.e. response IU). 287c72086e3c2897eaca5b99c005dd9844fdc784981Dan Williams */ 288e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_SMP_WAIT_RESP, 289c72086e3c2897eaca5b99c005dd9844fdc784981Dan Williams 290e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski /* 291e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * The AWAIT_TC_COMPLETION sub-state indicates that the started SMP 292e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * request is waiting for the transmission of the initial frame 293e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * (i.e. command, task, etc.). 294c72086e3c2897eaca5b99c005dd9844fdc784981Dan Williams */ 295e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_SMP_WAIT_TC_COMP, 296c72086e3c2897eaca5b99c005dd9844fdc784981Dan Williams 297e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski /* 298f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams * This state indicates that the request has completed. 299e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * This state is entered from the STARTED state. This state is entered 300e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski * from the ABORTING state. 301f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams */ 302e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_COMPLETED, 303f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams 304e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski /* 305f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams * This state indicates that the request is in the process of being 306f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams * terminated/aborted. 307f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams * This state is entered from the CONSTRUCTED state. 308f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams * This state is entered from the STARTED state. 309f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams */ 310e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_ABORTING, 311f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams 312e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski /* 313f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams * Simply the final state for the base request state machine. 314f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams */ 315e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski SCI_REQ_FINAL, 316f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams}; 317f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams 31889a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsenum sci_status sci_request_start(struct isci_request *ireq); 31989a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsenum sci_status sci_io_request_terminate(struct isci_request *ireq); 320e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolskienum sci_status 32189a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamssci_io_request_event_handler(struct isci_request *ireq, 322e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski u32 event_code); 323e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolskienum sci_status 32489a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamssci_io_request_frame_handler(struct isci_request *ireq, 325e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski u32 frame_index); 326e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolskienum sci_status 32789a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamssci_task_request_terminate(struct isci_request *ireq); 328e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolskiextern enum sci_status 32989a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamssci_request_complete(struct isci_request *ireq); 330e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolskiextern enum sci_status 33189a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamssci_io_request_tc_completion(struct isci_request *ireq, u32 code); 332f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams 333f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams/* XXX open code in caller */ 334e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolskistatic inline dma_addr_t 33589a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamssci_io_request_get_dma_addr(struct isci_request *ireq, void *virt_addr) 336f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams{ 337f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams 338f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams char *requested_addr = (char *)virt_addr; 339f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams char *base_addr = (char *)ireq; 340f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams 341f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams BUG_ON(requested_addr < base_addr); 342f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams BUG_ON((requested_addr - base_addr) >= sizeof(*ireq)); 343f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams 344f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams return ireq->request_daddr + (requested_addr - base_addr); 345f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams} 346f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams 347f1f52e75939b56c40b3d153ae99faf2720250242Dan Williams/** 3486f231dda68080759f1aed3769896e94c73099f0fDan Williams * isci_request_change_state() - This function sets the status of the request 3496f231dda68080759f1aed3769896e94c73099f0fDan Williams * object. 3506f231dda68080759f1aed3769896e94c73099f0fDan Williams * @request: This parameter points to the isci_request object 3516f231dda68080759f1aed3769896e94c73099f0fDan Williams * @status: This Parameter is the new status of the object 3526f231dda68080759f1aed3769896e94c73099f0fDan Williams * 3536f231dda68080759f1aed3769896e94c73099f0fDan Williams */ 354e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolskistatic inline enum isci_request_status 355e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolskiisci_request_change_state(struct isci_request *isci_request, 356e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski enum isci_request_status status) 3576f231dda68080759f1aed3769896e94c73099f0fDan Williams{ 3586f231dda68080759f1aed3769896e94c73099f0fDan Williams enum isci_request_status old_state; 3596f231dda68080759f1aed3769896e94c73099f0fDan Williams unsigned long flags; 3606f231dda68080759f1aed3769896e94c73099f0fDan Williams 3616f231dda68080759f1aed3769896e94c73099f0fDan Williams dev_dbg(&isci_request->isci_host->pdev->dev, 3626f231dda68080759f1aed3769896e94c73099f0fDan Williams "%s: isci_request = %p, state = 0x%x\n", 3636f231dda68080759f1aed3769896e94c73099f0fDan Williams __func__, 3646f231dda68080759f1aed3769896e94c73099f0fDan Williams isci_request, 3656f231dda68080759f1aed3769896e94c73099f0fDan Williams status); 3666f231dda68080759f1aed3769896e94c73099f0fDan Williams 3676f231dda68080759f1aed3769896e94c73099f0fDan Williams BUG_ON(isci_request == NULL); 3686f231dda68080759f1aed3769896e94c73099f0fDan Williams 3696f231dda68080759f1aed3769896e94c73099f0fDan Williams spin_lock_irqsave(&isci_request->state_lock, flags); 3706f231dda68080759f1aed3769896e94c73099f0fDan Williams old_state = isci_request->status; 3716f231dda68080759f1aed3769896e94c73099f0fDan Williams isci_request->status = status; 3726f231dda68080759f1aed3769896e94c73099f0fDan Williams spin_unlock_irqrestore(&isci_request->state_lock, flags); 3736f231dda68080759f1aed3769896e94c73099f0fDan Williams 3746f231dda68080759f1aed3769896e94c73099f0fDan Williams return old_state; 3756f231dda68080759f1aed3769896e94c73099f0fDan Williams} 3766f231dda68080759f1aed3769896e94c73099f0fDan Williams 3776f231dda68080759f1aed3769896e94c73099f0fDan Williams/** 3786f231dda68080759f1aed3769896e94c73099f0fDan Williams * isci_request_change_started_to_newstate() - This function sets the status of 3796f231dda68080759f1aed3769896e94c73099f0fDan Williams * the request object. 3806f231dda68080759f1aed3769896e94c73099f0fDan Williams * @request: This parameter points to the isci_request object 3816f231dda68080759f1aed3769896e94c73099f0fDan Williams * @status: This Parameter is the new status of the object 3826f231dda68080759f1aed3769896e94c73099f0fDan Williams * 3836f231dda68080759f1aed3769896e94c73099f0fDan Williams * state previous to any change. 3846f231dda68080759f1aed3769896e94c73099f0fDan Williams */ 385e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolskistatic inline enum isci_request_status 386e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolskiisci_request_change_started_to_newstate(struct isci_request *isci_request, 387e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski struct completion *completion_ptr, 388e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski enum isci_request_status newstate) 3896f231dda68080759f1aed3769896e94c73099f0fDan Williams{ 3906f231dda68080759f1aed3769896e94c73099f0fDan Williams enum isci_request_status old_state; 3916f231dda68080759f1aed3769896e94c73099f0fDan Williams unsigned long flags; 3926f231dda68080759f1aed3769896e94c73099f0fDan Williams 3936f231dda68080759f1aed3769896e94c73099f0fDan Williams spin_lock_irqsave(&isci_request->state_lock, flags); 3946f231dda68080759f1aed3769896e94c73099f0fDan Williams 3956f231dda68080759f1aed3769896e94c73099f0fDan Williams old_state = isci_request->status; 3966f231dda68080759f1aed3769896e94c73099f0fDan Williams 397f219f010a355487638bf2fff4724a420e7158fd2Jeff Skirvin if (old_state == started || old_state == aborting) { 3986f231dda68080759f1aed3769896e94c73099f0fDan Williams BUG_ON(isci_request->io_request_completion != NULL); 3996f231dda68080759f1aed3769896e94c73099f0fDan Williams 4006f231dda68080759f1aed3769896e94c73099f0fDan Williams isci_request->io_request_completion = completion_ptr; 4016f231dda68080759f1aed3769896e94c73099f0fDan Williams isci_request->status = newstate; 4026f231dda68080759f1aed3769896e94c73099f0fDan Williams } 403e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski 4046f231dda68080759f1aed3769896e94c73099f0fDan Williams spin_unlock_irqrestore(&isci_request->state_lock, flags); 4056f231dda68080759f1aed3769896e94c73099f0fDan Williams 4066f231dda68080759f1aed3769896e94c73099f0fDan Williams dev_dbg(&isci_request->isci_host->pdev->dev, 4076f231dda68080759f1aed3769896e94c73099f0fDan Williams "%s: isci_request = %p, old_state = 0x%x\n", 4086f231dda68080759f1aed3769896e94c73099f0fDan Williams __func__, 4096f231dda68080759f1aed3769896e94c73099f0fDan Williams isci_request, 4106f231dda68080759f1aed3769896e94c73099f0fDan Williams old_state); 4116f231dda68080759f1aed3769896e94c73099f0fDan Williams 4126f231dda68080759f1aed3769896e94c73099f0fDan Williams return old_state; 4136f231dda68080759f1aed3769896e94c73099f0fDan Williams} 4146f231dda68080759f1aed3769896e94c73099f0fDan Williams 4156f231dda68080759f1aed3769896e94c73099f0fDan Williams/** 4166f231dda68080759f1aed3769896e94c73099f0fDan Williams * isci_request_change_started_to_aborted() - This function sets the status of 4176f231dda68080759f1aed3769896e94c73099f0fDan Williams * the request object. 4186f231dda68080759f1aed3769896e94c73099f0fDan Williams * @request: This parameter points to the isci_request object 4196f231dda68080759f1aed3769896e94c73099f0fDan Williams * @completion_ptr: This parameter is saved as the kernel completion structure 4206f231dda68080759f1aed3769896e94c73099f0fDan Williams * signalled when the old request completes. 4216f231dda68080759f1aed3769896e94c73099f0fDan Williams * 4226f231dda68080759f1aed3769896e94c73099f0fDan Williams * state previous to any change. 4236f231dda68080759f1aed3769896e94c73099f0fDan Williams */ 424e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolskistatic inline enum isci_request_status 425e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolskiisci_request_change_started_to_aborted(struct isci_request *isci_request, 426e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski struct completion *completion_ptr) 4276f231dda68080759f1aed3769896e94c73099f0fDan Williams{ 428e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski return isci_request_change_started_to_newstate(isci_request, 429e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski completion_ptr, 430e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski aborted); 4316f231dda68080759f1aed3769896e94c73099f0fDan Williams} 4326f231dda68080759f1aed3769896e94c73099f0fDan Williams 433e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski#define isci_request_access_task(req) ((req)->ttype_ptr.io_task_ptr) 4346f231dda68080759f1aed3769896e94c73099f0fDan Williams 435e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski#define isci_request_access_tmf(req) ((req)->ttype_ptr.tmf_task_ptr) 4366f231dda68080759f1aed3769896e94c73099f0fDan Williams 437db0562509800a2d4cb5cb14a66413c30484f165cDan Williamsstruct isci_request *isci_tmf_request_from_tag(struct isci_host *ihost, 438db0562509800a2d4cb5cb14a66413c30484f165cDan Williams struct isci_tmf *isci_tmf, 439db0562509800a2d4cb5cb14a66413c30484f165cDan Williams u16 tag); 440209fae14fabfd48525e5630bebbbd4ca15090c60Dan Williamsint isci_request_execute(struct isci_host *ihost, struct isci_remote_device *idev, 441db0562509800a2d4cb5cb14a66413c30484f165cDan Williams struct sas_task *task, u16 tag); 442ddcc7e347a891937be65358b43f40b7f81185f8fDan Williamsvoid isci_terminate_pending_requests(struct isci_host *ihost, 443ddcc7e347a891937be65358b43f40b7f81185f8fDan Williams struct isci_remote_device *idev); 444e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolskienum sci_status 44589a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamssci_task_request_construct(struct isci_host *ihost, 44678a6f06e0e82125787d7aa308fe28c2c8381540cDan Williams struct isci_remote_device *idev, 447e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolski u16 io_tag, 4485076a1a97e2fa61c847a5fdd4b1991faf7716da6Dan Williams struct isci_request *ireq); 449e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolskienum sci_status 45089a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamssci_task_request_construct_ssp(struct isci_request *ireq); 451e301370ac553a9a0ac0d1d25e769b86cf60395b3Edmund Nadolskienum sci_status 45289a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamssci_task_request_construct_sata(struct isci_request *ireq); 45389a7301f21fb00e753089671eb9e4132aab8ea08Dan Williamsvoid sci_smp_request_copy_response(struct isci_request *ireq); 4549274f45ea551421cd3bf329de9dd8d1e6208285aJeff Skirvin 4559274f45ea551421cd3bf329de9dd8d1e6208285aJeff Skirvinstatic inline int isci_task_is_ncq_recovery(struct sas_task *task) 4569274f45ea551421cd3bf329de9dd8d1e6208285aJeff Skirvin{ 4579274f45ea551421cd3bf329de9dd8d1e6208285aJeff Skirvin return (sas_protocol_ata(task->task_proto) && 458a5ec7f86dc5432c44d8407a144e7617ec65da770James Bottomley task->ata_task.fis.command == ATA_CMD_READ_LOG_EXT && 459a5ec7f86dc5432c44d8407a144e7617ec65da770James Bottomley task->ata_task.fis.lbal == ATA_LOG_SATA_NCQ); 4609274f45ea551421cd3bf329de9dd8d1e6208285aJeff Skirvin 4619274f45ea551421cd3bf329de9dd8d1e6208285aJeff Skirvin} 4629274f45ea551421cd3bf329de9dd8d1e6208285aJeff Skirvin 4636f231dda68080759f1aed3769896e94c73099f0fDan Williams#endif /* !defined(_ISCI_REQUEST_H_) */ 464