tree: https://github.com/bvanassche/linux scsi-for-next head: 82fed99944bad457ee009b37605e043e617280fd commit: ead328d8360e918f3c8b83454fb19fec6f2f122b [31/36] Use struct scsi_status more widely config: x86_64-randconfig-a002-20210412 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 9829f5e6b1bca9b61efc629770d28bb9014dec45) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/bvanassche/linux/commit/ead328d8360e918f3c8b83454fb19f... git remote add bvanassche https://github.com/bvanassche/linux git fetch --no-tags bvanassche scsi-for-next git checkout ead328d8360e918f3c8b83454fb19fec6f2f122b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): if(status_byte(hostdata->status[0]) == CHECK_CONDITION || ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/scsi/scsi.h:136:38: note: expanded from macro 'status_byte' #define status_byte(result) ((result).b.status >> 1) ~~~~~~~~^~ drivers/scsi/53c700.c:985:6: error: member reference base type '__u8' (aka 'unsigned char') is not a structure or union status_byte(hostdata->status[0]) == COMMAND_TERMINATED) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/scsi/scsi.h:136:38: note: expanded from macro 'status_byte' #define status_byte(result) ((result).b.status >> 1) ~~~~~~~~^~ 2 errors generated. vim +984 drivers/scsi/53c700.c ^1da177e4c3f415 Linus Torvalds 2005-04-16 961 ^1da177e4c3f415 Linus Torvalds 2005-04-16 962 STATIC __u32 ^1da177e4c3f415 Linus Torvalds 2005-04-16 963 process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp, ^1da177e4c3f415 Linus Torvalds 2005-04-16 964 struct Scsi_Host *host, ^1da177e4c3f415 Linus Torvalds 2005-04-16 965 struct NCR_700_Host_Parameters *hostdata) ^1da177e4c3f415 Linus Torvalds 2005-04-16 966 { ^1da177e4c3f415 Linus Torvalds 2005-04-16 967 __u32 resume_offset = 0; ^1da177e4c3f415 Linus Torvalds 2005-04-16 968 __u8 pun = 0xff, lun=0xff; ^1da177e4c3f415 Linus Torvalds 2005-04-16 969 ^1da177e4c3f415 Linus Torvalds 2005-04-16 970 if(SCp != NULL) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 971 pun = SCp->device->id; ^1da177e4c3f415 Linus Torvalds 2005-04-16 972 lun = SCp->device->lun; ^1da177e4c3f415 Linus Torvalds 2005-04-16 973 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 974 ^1da177e4c3f415 Linus Torvalds 2005-04-16 975 if(dsps == A_GOOD_STATUS_AFTER_STATUS) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 976 DEBUG((" COMMAND COMPLETE, status=%02x\n", ^1da177e4c3f415 Linus Torvalds 2005-04-16 977 hostdata->status[0])); ^1da177e4c3f415 Linus Torvalds 2005-04-16 978 /* OK, if TCQ still under negotiation, we now know it works */ ^1da177e4c3f415 Linus Torvalds 2005-04-16 979 if (NCR_700_get_tag_neg_state(SCp->device) == NCR_700_DURING_TAG_NEGOTIATION) ^1da177e4c3f415 Linus Torvalds 2005-04-16 980 NCR_700_set_tag_neg_state(SCp->device, ^1da177e4c3f415 Linus Torvalds 2005-04-16 981 NCR_700_FINISHED_TAG_NEGOTIATION); ^1da177e4c3f415 Linus Torvalds 2005-04-16 982 ac5669bf79d976f ganjisheng 2021-03-16 983 /* check for contingent allegiance conditions */ ^1da177e4c3f415 Linus Torvalds 2005-04-16 @984 if(status_byte(hostdata->status[0]) == CHECK_CONDITION || ^1da177e4c3f415 Linus Torvalds 2005-04-16 985 status_byte(hostdata->status[0]) == COMMAND_TERMINATED) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 986 struct NCR_700_command_slot *slot = ^1da177e4c3f415 Linus Torvalds 2005-04-16 987 (struct NCR_700_command_slot *)SCp->host_scribble; 0f13fc09db68de9 James Bottomley 2006-06-29 988 if(slot->flags == NCR_700_FLAG_AUTOSENSE) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 989 /* OOPS: bad device, returning another ^1da177e4c3f415 Linus Torvalds 2005-04-16 990 * contingent allegiance condition */ 017560fca496f72 Jeff Garzik 2005-10-24 991 scmd_printk(KERN_ERR, SCp, 017560fca496f72 Jeff Garzik 2005-10-24 992 "broken device is looping in contingent allegiance: ignoring\n"); ^1da177e4c3f415 Linus Torvalds 2005-04-16 993 NCR_700_scsi_done(hostdata, SCp, hostdata->status[0]); ^1da177e4c3f415 Linus Torvalds 2005-04-16 994 } else { 0f13fc09db68de9 James Bottomley 2006-06-29 995 char *cmnd = 0f13fc09db68de9 James Bottomley 2006-06-29 996 NCR_700_get_sense_cmnd(SCp->device); ^1da177e4c3f415 Linus Torvalds 2005-04-16 997 #ifdef NCR_DEBUG ^1da177e4c3f415 Linus Torvalds 2005-04-16 998 scsi_print_command(SCp); ^1da177e4c3f415 Linus Torvalds 2005-04-16 999 printk(" cmd %p has status %d, requesting sense\n", ^1da177e4c3f415 Linus Torvalds 2005-04-16 1000 SCp, hostdata->status[0]); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1001 #endif ^1da177e4c3f415 Linus Torvalds 2005-04-16 1002 /* we can destroy the command here ^1da177e4c3f415 Linus Torvalds 2005-04-16 1003 * because the contingent allegiance ^1da177e4c3f415 Linus Torvalds 2005-04-16 1004 * condition will cause a retry which ^1da177e4c3f415 Linus Torvalds 2005-04-16 1005 * will re-copy the command from the ^1da177e4c3f415 Linus Torvalds 2005-04-16 1006 * saved data_cmnd. We also unmap any ^1da177e4c3f415 Linus Torvalds 2005-04-16 1007 * data associated with the command ^1da177e4c3f415 Linus Torvalds 2005-04-16 1008 * here */ ^1da177e4c3f415 Linus Torvalds 2005-04-16 1009 NCR_700_unmap(hostdata, SCp, slot); 67d59dfdeb21df2 James Bottomley 2006-06-13 1010 dma_unmap_single(hostdata->dev, slot->pCmd, 64a87b244b92976 Boaz Harrosh 2008-04-30 1011 MAX_COMMAND_SIZE, 67d59dfdeb21df2 James Bottomley 2006-06-13 1012 DMA_TO_DEVICE); 67d59dfdeb21df2 James Bottomley 2006-06-13 1013 0f13fc09db68de9 James Bottomley 2006-06-29 1014 cmnd[0] = REQUEST_SENSE; 9cb78c16f5dadef Hannes Reinecke 2014-06-25 1015 cmnd[1] = (lun & 0x7) << 5; 0f13fc09db68de9 James Bottomley 2006-06-29 1016 cmnd[2] = 0; 0f13fc09db68de9 James Bottomley 2006-06-29 1017 cmnd[3] = 0; b80ca4f7ee36c26 FUJITA Tomonori 2008-01-13 1018 cmnd[4] = SCSI_SENSE_BUFFERSIZE; 0f13fc09db68de9 James Bottomley 2006-06-29 1019 cmnd[5] = 0; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1020 /* Here's a quiet hack: the ^1da177e4c3f415 Linus Torvalds 2005-04-16 1021 * REQUEST_SENSE command is six bytes, ^1da177e4c3f415 Linus Torvalds 2005-04-16 1022 * so store a flag indicating that ^1da177e4c3f415 Linus Torvalds 2005-04-16 1023 * this was an internal sense request ^1da177e4c3f415 Linus Torvalds 2005-04-16 1024 * and the original status at the end ^1da177e4c3f415 Linus Torvalds 2005-04-16 1025 * of the command */ 0f13fc09db68de9 James Bottomley 2006-06-29 1026 cmnd[6] = NCR_700_INTERNAL_SENSE_MAGIC; 0f13fc09db68de9 James Bottomley 2006-06-29 1027 cmnd[7] = hostdata->status[0]; c603d04ef6826a2 James Bottomley 2006-12-01 1028 cmnd[8] = SCp->cmd_len; c603d04ef6826a2 James Bottomley 2006-12-01 1029 SCp->cmd_len = 6; /* command length for c603d04ef6826a2 James Bottomley 2006-12-01 1030 * REQUEST_SENSE */ 0f13fc09db68de9 James Bottomley 2006-06-29 1031 slot->pCmd = dma_map_single(hostdata->dev, cmnd, MAX_COMMAND_SIZE, DMA_TO_DEVICE); b80ca4f7ee36c26 FUJITA Tomonori 2008-01-13 1032 slot->dma_handle = dma_map_single(hostdata->dev, SCp->sense_buffer, SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE); b80ca4f7ee36c26 FUJITA Tomonori 2008-01-13 1033 slot->SG[0].ins = bS_to_host(SCRIPT_MOVE_DATA_IN | SCSI_SENSE_BUFFERSIZE); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1034 slot->SG[0].pAddr = bS_to_host(slot->dma_handle); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1035 slot->SG[1].ins = bS_to_host(SCRIPT_RETURN); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1036 slot->SG[1].pAddr = 0; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1037 slot->resume_offset = hostdata->pScript; 91af2dd255ac928 Christoph Hellwig 2020-08-18 1038 dma_sync_to_dev(hostdata, slot->SG, sizeof(slot->SG[0])*2); 91af2dd255ac928 Christoph Hellwig 2020-08-18 1039 dma_sync_from_dev(hostdata, SCp->sense_buffer, SCSI_SENSE_BUFFERSIZE); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1040 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1041 /* queue the command for reissue */ ^1da177e4c3f415 Linus Torvalds 2005-04-16 1042 slot->state = NCR_700_SLOT_QUEUED; 67d59dfdeb21df2 James Bottomley 2006-06-13 1043 slot->flags = NCR_700_FLAG_AUTOSENSE; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1044 hostdata->state = NCR_700_HOST_FREE; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1045 hostdata->cmd = NULL; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1046 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1047 } else { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1048 // Currently rely on the mid layer evaluation ^1da177e4c3f415 Linus Torvalds 2005-04-16 1049 // of the tag queuing capability ^1da177e4c3f415 Linus Torvalds 2005-04-16 1050 // ^1da177e4c3f415 Linus Torvalds 2005-04-16 1051 //if(status_byte(hostdata->status[0]) == GOOD && ^1da177e4c3f415 Linus Torvalds 2005-04-16 1052 // SCp->cmnd[0] == INQUIRY && SCp->use_sg == 0) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1053 // /* Piggy back the tag queueing support ^1da177e4c3f415 Linus Torvalds 2005-04-16 1054 // * on this command */ ^1da177e4c3f415 Linus Torvalds 2005-04-16 1055 // dma_sync_single_for_cpu(hostdata->dev, ^1da177e4c3f415 Linus Torvalds 2005-04-16 1056 // slot->dma_handle, ^1da177e4c3f415 Linus Torvalds 2005-04-16 1057 // SCp->request_bufflen, ^1da177e4c3f415 Linus Torvalds 2005-04-16 1058 // DMA_FROM_DEVICE); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1059 // if(((char *)SCp->request_buffer)[7] & 0x02) { 017560fca496f72 Jeff Garzik 2005-10-24 1060 // scmd_printk(KERN_INFO, SCp, 017560fca496f72 Jeff Garzik 2005-10-24 1061 // "Enabling Tag Command Queuing\n"); 017560fca496f72 Jeff Garzik 2005-10-24 1062 // hostdata->tag_negotiated |= (1<<scmd_id(SCp)); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1063 // NCR_700_set_flag(SCp->device, NCR_700_DEV_BEGIN_TAG_QUEUEING); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1064 // } else { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1065 // NCR_700_clear_flag(SCp->device, NCR_700_DEV_BEGIN_TAG_QUEUEING); 017560fca496f72 Jeff Garzik 2005-10-24 1066 // hostdata->tag_negotiated &= ~(1<<scmd_id(SCp)); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1067 // } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1068 //} ^1da177e4c3f415 Linus Torvalds 2005-04-16 1069 NCR_700_scsi_done(hostdata, SCp, hostdata->status[0]); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1070 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1071 } else if((dsps & 0xfffff0f0) == A_UNEXPECTED_PHASE) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1072 __u8 i = (dsps & 0xf00) >> 8; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1073 017560fca496f72 Jeff Garzik 2005-10-24 1074 scmd_printk(KERN_ERR, SCp, "UNEXPECTED PHASE %s (%s)\n", ^1da177e4c3f415 Linus Torvalds 2005-04-16 1075 NCR_700_phase[i], ^1da177e4c3f415 Linus Torvalds 2005-04-16 1076 sbcl_to_string(NCR_700_readb(host, SBCL_REG))); 017560fca496f72 Jeff Garzik 2005-10-24 1077 scmd_printk(KERN_ERR, SCp, " len = %d, cmd =", 017560fca496f72 Jeff Garzik 2005-10-24 1078 SCp->cmd_len); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1079 scsi_print_command(SCp); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1080 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1081 NCR_700_internal_bus_reset(host); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1082 } else if((dsps & 0xfffff000) == A_FATAL) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1083 int i = (dsps & 0xfff); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1084 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1085 printk(KERN_ERR "scsi%d: (%d:%d) FATAL ERROR: %s\n", ^1da177e4c3f415 Linus Torvalds 2005-04-16 1086 host->host_no, pun, lun, NCR_700_fatal_messages[i]); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1087 if(dsps == A_FATAL_ILLEGAL_MSG_LENGTH) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1088 printk(KERN_ERR " msg begins %02x %02x\n", ^1da177e4c3f415 Linus Torvalds 2005-04-16 1089 hostdata->msgin[0], hostdata->msgin[1]); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1090 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1091 NCR_700_internal_bus_reset(host); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1092 } else if((dsps & 0xfffff0f0) == A_DISCONNECT) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1093 #ifdef NCR_700_DEBUG ^1da177e4c3f415 Linus Torvalds 2005-04-16 1094 __u8 i = (dsps & 0xf00) >> 8; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1095 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1096 printk("scsi%d: (%d:%d), DISCONNECTED (%d) %s\n", ^1da177e4c3f415 Linus Torvalds 2005-04-16 1097 host->host_no, pun, lun, ^1da177e4c3f415 Linus Torvalds 2005-04-16 1098 i, NCR_700_phase[i]); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1099 #endif ^1da177e4c3f415 Linus Torvalds 2005-04-16 1100 save_for_reselection(hostdata, SCp, dsp); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1101 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1102 } else if(dsps == A_RESELECTION_IDENTIFIED) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1103 __u8 lun; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1104 struct NCR_700_command_slot *slot; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1105 __u8 reselection_id = hostdata->reselection_id; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1106 struct scsi_device *SDp; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1107 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1108 lun = hostdata->msgin[0] & 0x1f; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1109 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1110 hostdata->reselection_id = 0xff; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1111 DEBUG(("scsi%d: (%d:%d) RESELECTED!\n", ^1da177e4c3f415 Linus Torvalds 2005-04-16 1112 host->host_no, reselection_id, lun)); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1113 /* clear the reselection indicator */ ^1da177e4c3f415 Linus Torvalds 2005-04-16 1114 SDp = __scsi_device_lookup(host, 0, reselection_id, lun); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1115 if(unlikely(SDp == NULL)) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1116 printk(KERN_ERR "scsi%d: (%d:%d) HAS NO device\n", ^1da177e4c3f415 Linus Torvalds 2005-04-16 1117 host->host_no, reselection_id, lun); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1118 BUG(); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1119 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1120 if(hostdata->msgin[1] == A_SIMPLE_TAG_MSG) { 64d513ac31bd02a Christoph Hellwig 2015-10-08 1121 struct scsi_cmnd *SCp; 64d513ac31bd02a Christoph Hellwig 2015-10-08 1122 64d513ac31bd02a Christoph Hellwig 2015-10-08 1123 SCp = scsi_host_find_tag(SDp->host, hostdata->msgin[2]); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1124 if(unlikely(SCp == NULL)) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1125 printk(KERN_ERR "scsi%d: (%d:%d) no saved request for tag %d\n", ^1da177e4c3f415 Linus Torvalds 2005-04-16 1126 host->host_no, reselection_id, lun, hostdata->msgin[2]); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1127 BUG(); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1128 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1129 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1130 slot = (struct NCR_700_command_slot *)SCp->host_scribble; 017560fca496f72 Jeff Garzik 2005-10-24 1131 DDEBUG(KERN_DEBUG, SDp, 017560fca496f72 Jeff Garzik 2005-10-24 1132 "reselection is tag %d, slot %p(%d)\n", 017560fca496f72 Jeff Garzik 2005-10-24 1133 hostdata->msgin[2], slot, slot->tag); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1134 } else { 68350a886e7df02 Christoph Hellwig 2016-07-11 1135 struct NCR_700_Device_Parameters *p = SDp->hostdata; 68350a886e7df02 Christoph Hellwig 2016-07-11 1136 struct scsi_cmnd *SCp = p->current_cmnd; 64d513ac31bd02a Christoph Hellwig 2015-10-08 1137 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1138 if(unlikely(SCp == NULL)) { 017560fca496f72 Jeff Garzik 2005-10-24 1139 sdev_printk(KERN_ERR, SDp, 017560fca496f72 Jeff Garzik 2005-10-24 1140 "no saved request for untagged cmd\n"); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1141 BUG(); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1142 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1143 slot = (struct NCR_700_command_slot *)SCp->host_scribble; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1144 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1145 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1146 if(slot == NULL) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1147 printk(KERN_ERR "scsi%d: (%d:%d) RESELECTED but no saved command (MSG = %02x %02x %02x)!!\n", ^1da177e4c3f415 Linus Torvalds 2005-04-16 1148 host->host_no, reselection_id, lun, ^1da177e4c3f415 Linus Torvalds 2005-04-16 1149 hostdata->msgin[0], hostdata->msgin[1], ^1da177e4c3f415 Linus Torvalds 2005-04-16 1150 hostdata->msgin[2]); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1151 } else { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1152 if(hostdata->state != NCR_700_HOST_BUSY) ^1da177e4c3f415 Linus Torvalds 2005-04-16 1153 printk(KERN_ERR "scsi%d: FATAL, host not busy during valid reselection!\n", ^1da177e4c3f415 Linus Torvalds 2005-04-16 1154 host->host_no); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1155 resume_offset = slot->resume_offset; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1156 hostdata->cmd = slot->cmnd; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1157 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1158 /* re-patch for this command */ 91af2dd255ac928 Christoph Hellwig 2020-08-18 1159 script_patch_32_abs(hostdata, hostdata->script, d3fa72e4556ec1f Ralf Baechle 2006-12-06 1160 CommandAddress, slot->pCmd); 91af2dd255ac928 Christoph Hellwig 2020-08-18 1161 script_patch_16(hostdata, hostdata->script, ^1da177e4c3f415 Linus Torvalds 2005-04-16 1162 CommandCount, slot->cmnd->cmd_len); 91af2dd255ac928 Christoph Hellwig 2020-08-18 1163 script_patch_32_abs(hostdata, hostdata->script, d3fa72e4556ec1f Ralf Baechle 2006-12-06 1164 SGScriptStartAddress, ^1da177e4c3f415 Linus Torvalds 2005-04-16 1165 to32bit(&slot->pSG[0].ins)); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1166 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1167 /* Note: setting SXFER only works if we're ^1da177e4c3f415 Linus Torvalds 2005-04-16 1168 * still in the MESSAGE phase, so it is vital ^1da177e4c3f415 Linus Torvalds 2005-04-16 1169 * that ACK is still asserted when we process ^1da177e4c3f415 Linus Torvalds 2005-04-16 1170 * the reselection message. The resume offset ^1da177e4c3f415 Linus Torvalds 2005-04-16 1171 * should therefore always clear ACK */ ^1da177e4c3f415 Linus Torvalds 2005-04-16 1172 NCR_700_writeb(NCR_700_get_SXFER(hostdata->cmd->device), ^1da177e4c3f415 Linus Torvalds 2005-04-16 1173 host, SXFER_REG); 91af2dd255ac928 Christoph Hellwig 2020-08-18 1174 dma_sync_from_dev(hostdata, hostdata->msgin, 91af2dd255ac928 Christoph Hellwig 2020-08-18 1175 MSG_ARRAY_SIZE); 91af2dd255ac928 Christoph Hellwig 2020-08-18 1176 dma_sync_to_dev(hostdata, hostdata->msgout, 91af2dd255ac928 Christoph Hellwig 2020-08-18 1177 MSG_ARRAY_SIZE); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1178 /* I'm just being paranoid here, the command should ^1da177e4c3f415 Linus Torvalds 2005-04-16 1179 * already have been flushed from the cache */ 91af2dd255ac928 Christoph Hellwig 2020-08-18 1180 dma_sync_to_dev(hostdata, slot->cmnd->cmnd, 91af2dd255ac928 Christoph Hellwig 2020-08-18 1181 slot->cmnd->cmd_len); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1182 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1183 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1184 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1185 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1186 } else if(dsps == A_RESELECTED_DURING_SELECTION) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1187 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1188 /* This section is full of debugging code because I've ^1da177e4c3f415 Linus Torvalds 2005-04-16 1189 * never managed to reach it. I think what happens is ^1da177e4c3f415 Linus Torvalds 2005-04-16 1190 * that, because the 700 runs with selection ^1da177e4c3f415 Linus Torvalds 2005-04-16 1191 * interrupts enabled the whole time that we take a ^1da177e4c3f415 Linus Torvalds 2005-04-16 1192 * selection interrupt before we manage to get to the ^1da177e4c3f415 Linus Torvalds 2005-04-16 1193 * reselected script interrupt */ ^1da177e4c3f415 Linus Torvalds 2005-04-16 1194 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1195 __u8 reselection_id = NCR_700_readb(host, SFBR_REG); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1196 struct NCR_700_command_slot *slot; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1197 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1198 /* Take out our own ID */ ^1da177e4c3f415 Linus Torvalds 2005-04-16 1199 reselection_id &= ~(1<<host->this_id); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1200 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1201 /* I've never seen this happen, so keep this as a printk rather ^1da177e4c3f415 Linus Torvalds 2005-04-16 1202 * than a debug */ ^1da177e4c3f415 Linus Torvalds 2005-04-16 1203 printk(KERN_INFO "scsi%d: (%d:%d) RESELECTION DURING SELECTION, dsp=%08x[%04x] state=%d, count=%d\n", ^1da177e4c3f415 Linus Torvalds 2005-04-16 1204 host->host_no, reselection_id, lun, dsp, dsp - hostdata->pScript, hostdata->state, hostdata->command_slot_count); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1205 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1206 { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1207 /* FIXME: DEBUGGING CODE */ ^1da177e4c3f415 Linus Torvalds 2005-04-16 1208 __u32 SG = (__u32)bS_to_cpu(hostdata->script[A_SGScriptStartAddress_used[0]]); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1209 int i; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1210 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1211 for(i=0; i< NCR_700_COMMAND_SLOTS_PER_HOST; i++) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1212 if(SG >= to32bit(&hostdata->slots[i].pSG[0]) ^1da177e4c3f415 Linus Torvalds 2005-04-16 1213 && SG <= to32bit(&hostdata->slots[i].pSG[NCR_700_SG_SEGMENTS])) ^1da177e4c3f415 Linus Torvalds 2005-04-16 1214 break; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1215 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1216 printk(KERN_INFO "IDENTIFIED SG segment as being %08x in slot %p, cmd %p, slot->resume_offset=%08x\n", SG, &hostdata->slots[i], hostdata->slots[i].cmnd, hostdata->slots[i].resume_offset); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1217 SCp = hostdata->slots[i].cmnd; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1218 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1219 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1220 if(SCp != NULL) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1221 slot = (struct NCR_700_command_slot *)SCp->host_scribble; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1222 /* change slot from busy to queued to redo command */ ^1da177e4c3f415 Linus Torvalds 2005-04-16 1223 slot->state = NCR_700_SLOT_QUEUED; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1224 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1225 hostdata->cmd = NULL; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1226 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1227 if(reselection_id == 0) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1228 if(hostdata->reselection_id == 0xff) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1229 printk(KERN_ERR "scsi%d: Invalid reselection during selection!!\n", host->host_no); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1230 return 0; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1231 } else { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1232 printk(KERN_ERR "scsi%d: script reselected and we took a selection interrupt\n", ^1da177e4c3f415 Linus Torvalds 2005-04-16 1233 host->host_no); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1234 reselection_id = hostdata->reselection_id; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1235 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1236 } else { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1237 ^1da177e4c3f415 Linus Torvalds 2005-04-16 1238 /* convert to real ID */ ^1da177e4c3f415 Linus Torvalds 2005-04-16 1239 reselection_id = bitmap_to_number(reselection_id); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1240 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1241 hostdata->reselection_id = reselection_id; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1242 /* just in case we have a stale simple tag message, clear it */ ^1da177e4c3f415 Linus Torvalds 2005-04-16 1243 hostdata->msgin[1] = 0; 91af2dd255ac928 Christoph Hellwig 2020-08-18 1244 dma_sync_to_dev(hostdata, hostdata->msgin, MSG_ARRAY_SIZE); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1245 if(hostdata->tag_negotiated & (1<<reselection_id)) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1246 resume_offset = hostdata->pScript + Ent_GetReselectionWithTag; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1247 } else { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1248 resume_offset = hostdata->pScript + Ent_GetReselectionData; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1249 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1250 } else if(dsps == A_COMPLETED_SELECTION_AS_TARGET) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1251 /* we've just disconnected from the bus, do nothing since ^1da177e4c3f415 Linus Torvalds 2005-04-16 1252 * a return here will re-run the queued command slot ^1da177e4c3f415 Linus Torvalds 2005-04-16 1253 * that may have been interrupted by the initial selection */ ^1da177e4c3f415 Linus Torvalds 2005-04-16 1254 DEBUG((" SELECTION COMPLETED\n")); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1255 } else if((dsps & 0xfffff0f0) == A_MSG_IN) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1256 resume_offset = process_message(host, hostdata, SCp, ^1da177e4c3f415 Linus Torvalds 2005-04-16 1257 dsp, dsps); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1258 } else if((dsps & 0xfffff000) == 0) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1259 __u8 i = (dsps & 0xf0) >> 4, j = (dsps & 0xf00) >> 8; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1260 printk(KERN_ERR "scsi%d: (%d:%d), unhandled script condition %s %s at %04x\n", ^1da177e4c3f415 Linus Torvalds 2005-04-16 1261 host->host_no, pun, lun, NCR_700_condition[i], ^1da177e4c3f415 Linus Torvalds 2005-04-16 1262 NCR_700_phase[j], dsp - hostdata->pScript); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1263 if(SCp != NULL) { 3258a4d5690880a FUJITA Tomonori 2007-05-14 1264 struct scatterlist *sg; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1265 3258a4d5690880a FUJITA Tomonori 2007-05-14 1266 scsi_print_command(SCp); 3258a4d5690880a FUJITA Tomonori 2007-05-14 1267 scsi_for_each_sg(SCp, sg, scsi_sg_count(SCp) + 1, i) { 3258a4d5690880a FUJITA Tomonori 2007-05-14 1268 printk(KERN_INFO " SG[%d].length = %d, move_insn=%08x, addr %08x\n", i, sg->length, ((struct NCR_700_command_slot *)SCp->host_scribble)->SG[i].ins, ((struct NCR_700_command_slot *)SCp->host_scribble)->SG[i].pAddr); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1269 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1270 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1271 NCR_700_internal_bus_reset(host); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1272 } else if((dsps & 0xfffff000) == A_DEBUG_INTERRUPT) { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1273 printk(KERN_NOTICE "scsi%d (%d:%d) DEBUG INTERRUPT %d AT %08x[%04x], continuing\n", ^1da177e4c3f415 Linus Torvalds 2005-04-16 1274 host->host_no, pun, lun, dsps & 0xfff, dsp, dsp - hostdata->pScript); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1275 resume_offset = dsp; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1276 } else { ^1da177e4c3f415 Linus Torvalds 2005-04-16 1277 printk(KERN_ERR "scsi%d: (%d:%d), unidentified script interrupt 0x%x at %04x\n", ^1da177e4c3f415 Linus Torvalds 2005-04-16 1278 host->host_no, pun, lun, dsps, dsp - hostdata->pScript); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1279 NCR_700_internal_bus_reset(host); ^1da177e4c3f415 Linus Torvalds 2005-04-16 1280 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1281 return resume_offset; ^1da177e4c3f415 Linus Torvalds 2005-04-16 1282 } ^1da177e4c3f415 Linus Torvalds 2005-04-16 1283 :::::: The code at line 984 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds <torvalds(a)ppc970.osdl.org&gt; :::::: CC: Linus Torvalds <torvalds(a)ppc970.osdl.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org