From patchwork Fri Apr 23 11:39:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 426562 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 68C19C4360C for ; Fri, 23 Apr 2021 11:40:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 426DA61459 for ; Fri, 23 Apr 2021 11:40:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242334AbhDWLlM (ORCPT ); Fri, 23 Apr 2021 07:41:12 -0400 Received: from mx2.suse.de ([195.135.220.15]:46918 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242335AbhDWLkw (ORCPT ); Fri, 23 Apr 2021 07:40:52 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id F1335B201; Fri, 23 Apr 2021 11:39:55 +0000 (UTC) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Bart van Assche , Hannes Reinecke Subject: [PATCH 39/39] scsi: drop obsolete linux-specific SCSI status codes Date: Fri, 23 Apr 2021 13:39:44 +0200 Message-Id: <20210423113944.42672-40-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210423113944.42672-1-hare@suse.de> References: <20210423113944.42672-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Original the SCSI subsystem has been using 'special' SCSI status codes, which were the SAM-specified ones but shifted by 1. As most drivers have now been modified to use the SAM-specified ones having two nearly identical sets of definitions only causes confusion for no good reason. And the linux-specifed SCSI status codes are marked obsolete since several years now. So drop them and use the SAM-specified status codes throughout. Signed-off-by: Hannes Reinecke Reviewed-by: Bart Van Assche --- drivers/ata/libata-scsi.c | 2 +- drivers/infiniband/ulp/srp/ib_srp.c | 2 +- drivers/scsi/3w-9xxx.c | 2 +- drivers/scsi/3w-xxxx.c | 4 +-- drivers/scsi/53c700.c | 6 ++-- drivers/scsi/NCR5380.c | 2 +- drivers/scsi/arcmsr/arcmsr_hba.c | 4 +-- drivers/scsi/esas2r/esas2r_main.c | 2 +- drivers/scsi/megaraid.c | 4 +-- drivers/scsi/megaraid/megaraid_mbox.c | 4 +-- drivers/scsi/scsi_error.c | 48 +++++++++++++-------------- drivers/scsi/scsi_lib.c | 2 +- drivers/scsi/sr.c | 2 +- drivers/scsi/sr_ioctl.c | 2 +- drivers/xen/xen-scsiback.c | 2 +- include/scsi/scsi.h | 1 - include/scsi/scsi_proto.h | 22 +----------- include/scsi/sg.h | 20 +++++++++++ 18 files changed, 65 insertions(+), 66 deletions(-) diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 401990e87d50..3aa4bb666616 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -642,7 +642,7 @@ static struct ata_queued_cmd *ata_scsi_qc_new(struct ata_device *dev, if (cmd->request->rq_flags & RQF_QUIET) qc->flags |= ATA_QCFLAG_QUIET; } else { - cmd->result = (DID_OK << 16) | (QUEUE_FULL << 1); + cmd->result = (DID_OK << 16) | SAM_STAT_TASK_SET_FULL; cmd->scsi_done(cmd); } diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 31f8aa2c40ed..62d9b70f7c63 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -2232,7 +2232,7 @@ static int srp_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *scmnd) * to reduce queue depth temporarily. */ scmnd->result = len == -ENOMEM ? - DID_OK << 16 | QUEUE_FULL << 1 : DID_ERROR << 16; + DID_OK << 16 | SAM_STAT_TASK_SET_FULL : DID_ERROR << 16; goto err_iu; } diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c index 47028f5e57ab..259393726ecb 100644 --- a/drivers/scsi/3w-9xxx.c +++ b/drivers/scsi/3w-9xxx.c @@ -1342,7 +1342,7 @@ static irqreturn_t twa_interrupt(int irq, void *dev_instance) /* If error, command failed */ if (error == 1) { /* Ask for a host reset */ - cmd->result = (DID_OK << 16) | (CHECK_CONDITION << 1); + cmd->result = (DID_OK << 16) | SAM_STAT_CHECK_CONDITION; } /* Report residual bytes for single sgl */ diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c index 7a0b4a44395d..4ee485ab2714 100644 --- a/drivers/scsi/3w-xxxx.c +++ b/drivers/scsi/3w-xxxx.c @@ -429,7 +429,7 @@ static int tw_decode_sense(TW_Device_Extension *tw_dev, int request_id, int fill /* Additional sense code qualifier */ tw_dev->srb[request_id]->sense_buffer[13] = tw_sense_table[i][3]; - tw_dev->srb[request_id]->result = (DID_OK << 16) | (CHECK_CONDITION << 1); + tw_dev->srb[request_id]->result = (DID_OK << 16) | SAM_STAT_CHECK_CONDITION; return TW_ISR_DONT_RESULT; /* Special case for isr to not over-write result */ } } @@ -2159,7 +2159,7 @@ static irqreturn_t tw_interrupt(int irq, void *dev_instance) /* If error, command failed */ if (error == 1) { /* Ask for a host reset */ - tw_dev->srb[request_id]->result = (DID_OK << 16) | (CHECK_CONDITION << 1); + tw_dev->srb[request_id]->result = (DID_OK << 16) | SAM_STAT_CHECK_CONDITION; } /* Now complete the io */ diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c index ab42feab233f..601a8df0bef3 100644 --- a/drivers/scsi/53c700.c +++ b/drivers/scsi/53c700.c @@ -979,10 +979,10 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp, if (NCR_700_get_tag_neg_state(SCp->device) == NCR_700_DURING_TAG_NEGOTIATION) NCR_700_set_tag_neg_state(SCp->device, NCR_700_FINISHED_TAG_NEGOTIATION); - + /* check for contingent allegiance conditions */ - if (hostdata->status[0] >> 1 == CHECK_CONDITION || - hostdata->status[0] >> 1 == COMMAND_TERMINATED) { + if (hostdata->status[0] == SAM_STAT_CHECK_CONDITION || + hostdata->status[0] == SAM_STAT_COMMAND_TERMINATED) { struct NCR_700_command_slot *slot = (struct NCR_700_command_slot *)SCp->host_scribble; if(slot->flags == NCR_700_FLAG_AUTOSENSE) { diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index 1aea164c535c..0c1dccd8b3e5 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -538,7 +538,7 @@ static void complete_cmd(struct Scsi_Host *instance, if (hostdata->sensing == cmd) { /* Autosense processing ends here */ - if (status_byte(cmd->result) != GOOD) { + if (get_status_byte(cmd) != SAM_STAT_GOOD) { scsi_eh_restore_cmnd(cmd, &hostdata->ses); } else { scsi_eh_restore_cmnd(cmd, &hostdata->ses); diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index 8e4d7d0e649c..5ea5e6010449 100644 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -1326,7 +1326,7 @@ static void arcmsr_report_sense_info(struct CommandControlBlock *ccb) struct scsi_cmnd *pcmd = ccb->pcmd; struct SENSE_DATA *sensebuffer = (struct SENSE_DATA *)pcmd->sense_buffer; - pcmd->result = (DID_OK << 16) | (CHECK_CONDITION << 1); + pcmd->result = (DID_OK << 16) | SAM_STAT_CHECK_CONDITION; if (sensebuffer) { int sense_data_length = sizeof(struct SENSE_DATA) < SCSI_SENSE_BUFFERSIZE @@ -3242,7 +3242,7 @@ static int arcmsr_queue_command_lck(struct scsi_cmnd *cmd, if (!ccb) return SCSI_MLQUEUE_HOST_BUSY; if (arcmsr_build_ccb( acb, ccb, cmd ) == FAILED) { - cmd->result = (DID_ERROR << 16) | (RESERVATION_CONFLICT << 1); + cmd->result = (DID_ERROR << 16) | SAM_STAT_RESERVATION_CONFLICT; cmd->scsi_done(cmd); return 0; } diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c index a9dd6345f064..f7818df175a5 100644 --- a/drivers/scsi/esas2r/esas2r_main.c +++ b/drivers/scsi/esas2r/esas2r_main.c @@ -1525,7 +1525,7 @@ void esas2r_complete_request_cb(struct esas2r_adapter *a, rq->cmd->result = ((esas2r_req_status_to_error(rq->req_stat) << 16) - | (rq->func_rsp.scsi_rsp.scsi_stat & STATUS_MASK)); + | rq->func_rsp.scsi_rsp.scsi_stat); if (rq->req_stat == RS_UNDERRUN) scsi_set_resid(rq->cmd, diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index 1880471c632a..56910e94dbf2 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -1611,7 +1611,7 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) */ if( cmd->cmnd[0] == TEST_UNIT_READY ) { cmd->result |= (DID_ERROR << 16) | - (RESERVATION_CONFLICT << 1); + SAM_STAT_RESERVATION_CONFLICT; } else /* @@ -1623,7 +1623,7 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) cmd->cmnd[0] == RELEASE) ) { cmd->result |= (DID_ERROR << 16) | - (RESERVATION_CONFLICT << 1); + SAM_STAT_RESERVATION_CONFLICT; } else #endif diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index 674f1c6829f5..db36e4369c2d 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -2327,7 +2327,7 @@ megaraid_mbox_dpc(unsigned long devp) */ if (scp->cmnd[0] == TEST_UNIT_READY) { scp->result = DID_ERROR << 16 | - RESERVATION_CONFLICT << 1; + SAM_STAT_RESERVATION_CONFLICT; } else /* @@ -2338,7 +2338,7 @@ megaraid_mbox_dpc(unsigned long devp) scp->cmnd[0] == RELEASE)) { scp->result = DID_ERROR << 16 | - RESERVATION_CONFLICT << 1; + SAM_STAT_RESERVATION_CONFLICT; } else { scp->result = DID_BAD_TARGET << 16 | status; diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 3e6e456816fc..c6cd5a8e5c85 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -745,32 +745,32 @@ static enum scsi_disposition scsi_eh_completed_normally(struct scsi_cmnd *scmd) * now, check the status byte to see if this indicates * anything special. */ - switch (status_byte(scmd->result)) { - case GOOD: + switch (get_status_byte(scmd)) { + case SAM_STAT_GOOD: scsi_handle_queue_ramp_up(scmd->device); fallthrough; - case COMMAND_TERMINATED: + case SAM_STAT_COMMAND_TERMINATED: return SUCCESS; - case CHECK_CONDITION: + case SAM_STAT_CHECK_CONDITION: return scsi_check_sense(scmd); - case CONDITION_GOOD: - case INTERMEDIATE_GOOD: - case INTERMEDIATE_C_GOOD: + case SAM_STAT_CONDITION_MET: + case SAM_STAT_INTERMEDIATE: + case SAM_STAT_INTERMEDIATE_CONDITION_MET: /* * who knows? FIXME(eric) */ return SUCCESS; - case RESERVATION_CONFLICT: + case SAM_STAT_RESERVATION_CONFLICT: if (scmd->cmnd[0] == TEST_UNIT_READY) /* it is a success, we probed the device and * found it */ return SUCCESS; /* otherwise, we failed to send the command */ return FAILED; - case QUEUE_FULL: + case SAM_STAT_TASK_SET_FULL: scsi_handle_queue_full(scmd->device); fallthrough; - case BUSY: + case SAM_STAT_BUSY: return NEEDS_RETRY; default: return FAILED; @@ -1760,7 +1760,7 @@ int scsi_noretry_cmd(struct scsi_cmnd *scmd) case DID_PARITY: return (scmd->request->cmd_flags & REQ_FAILFAST_DEV); case DID_ERROR: - if (status_byte(scmd->result) == RESERVATION_CONFLICT) + if (get_status_byte(scmd) == SAM_STAT_RESERVATION_CONFLICT) return 0; fallthrough; case DID_SOFT_ERROR: @@ -1876,7 +1876,7 @@ enum scsi_disposition scsi_decide_disposition(struct scsi_cmnd *scmd) */ return SUCCESS; case DID_ERROR: - if (status_byte(scmd->result) == RESERVATION_CONFLICT) + if (get_status_byte(scmd) == SAM_STAT_RESERVATION_CONFLICT) /* * execute reservation conflict processing code * lower down @@ -1907,15 +1907,15 @@ enum scsi_disposition scsi_decide_disposition(struct scsi_cmnd *scmd) /* * check the status byte to see if this indicates anything special. */ - switch (status_byte(scmd->result)) { - case QUEUE_FULL: + switch (get_status_byte(scmd)) { + case SAM_STAT_TASK_SET_FULL: scsi_handle_queue_full(scmd->device); /* * the case of trying to send too many commands to a * tagged queueing device. */ fallthrough; - case BUSY: + case SAM_STAT_BUSY: /* * device can't talk to us at the moment. Should only * occur (SAM-3) when the task queue is empty, so will cause @@ -1923,16 +1923,16 @@ enum scsi_disposition scsi_decide_disposition(struct scsi_cmnd *scmd) * device. */ return ADD_TO_MLQUEUE; - case GOOD: + case SAM_STAT_GOOD: if (scmd->cmnd[0] == REPORT_LUNS) scmd->device->sdev_target->expecting_lun_change = 0; scsi_handle_queue_ramp_up(scmd->device); fallthrough; - case COMMAND_TERMINATED: + case SAM_STAT_COMMAND_TERMINATED: return SUCCESS; - case TASK_ABORTED: + case SAM_STAT_TASK_ABORTED: goto maybe_retry; - case CHECK_CONDITION: + case SAM_STAT_CHECK_CONDITION: rtn = scsi_check_sense(scmd); if (rtn == NEEDS_RETRY) goto maybe_retry; @@ -1941,16 +1941,16 @@ enum scsi_disposition scsi_decide_disposition(struct scsi_cmnd *scmd) * to collect the sense and redo the decide * disposition */ return rtn; - case CONDITION_GOOD: - case INTERMEDIATE_GOOD: - case INTERMEDIATE_C_GOOD: - case ACA_ACTIVE: + case SAM_STAT_CONDITION_MET: + case SAM_STAT_INTERMEDIATE: + case SAM_STAT_INTERMEDIATE_CONDITION_MET: + case SAM_STAT_ACA_ACTIVE: /* * who knows? FIXME(eric) */ return SUCCESS; - case RESERVATION_CONFLICT: + case SAM_STAT_RESERVATION_CONFLICT: sdev_printk(KERN_INFO, scmd->device, "reservation conflict\n"); set_host_byte(scmd, DID_NEXUS_FAILURE); diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index f5b439ba3216..d5ea9f26e6c4 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -907,7 +907,7 @@ static int scsi_io_completion_nz_result(struct scsi_cmnd *cmd, int result, * if it can't fit). Treat SAM_STAT_CONDITION_MET and the related * intermediate statuses (both obsolete in SAM-4) as good. */ - if (status_byte(result) && scsi_status_is_good(result)) { + if ((result & 0xff) && scsi_status_is_good(result)) { result = 0; *blk_statp = BLK_STS_OK; } diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index e9cb874f6891..482a07b662a9 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -338,7 +338,7 @@ static int sr_done(struct scsi_cmnd *SCpnt) * care is taken to avoid unnecessary additional work such as * memcpy's that could be avoided. */ - if (status_byte(result) == SAM_STAT_CHECK_CONDITION && + if (scsi_status_is_check_condition(result) && (SCpnt->sense_buffer[0] & 0x7f) == 0x70) { /* Sense current */ switch (SCpnt->sense_buffer[2]) { case MEDIUM_ERROR: diff --git a/drivers/scsi/sr_ioctl.c b/drivers/scsi/sr_ioctl.c index 74348ead5b11..b34a5332fd2d 100644 --- a/drivers/scsi/sr_ioctl.c +++ b/drivers/scsi/sr_ioctl.c @@ -209,7 +209,7 @@ int sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc) err = result; goto out; } - if (status_byte(result) == SAM_STAT_CHECK_CONDITION) { + if (scsi_status_is_check_condition(result)) { switch (sshdr->sense_key) { case UNIT_ATTENTION: SDev->changed = 1; diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c index bea22f71c782..61ce0d142eea 100644 --- a/drivers/xen/xen-scsiback.c +++ b/drivers/xen/xen-scsiback.c @@ -224,7 +224,7 @@ static void scsiback_print_status(char *sense_buffer, int errors, pr_err("[%s:%d] cmnd[0]=%02x -> st=%02x msg=%02x host=%02x\n", tpg->tport->tport_name, pending_req->v2p->lun, - pending_req->cmnd[0], status_byte(errors), COMMAND_COMPLETE, + pending_req->cmnd[0], errors & 0xff, COMMAND_COMPLETE, host_byte(errors)); } diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index bd1d1bc5d1b7..8a96f824923a 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -212,7 +212,6 @@ enum scsi_disposition { * msg_byte (unused) * host_byte = set by low-level driver to indicate status. */ -#define status_byte(result) (((result) >> 1) & 0x7f) #define host_byte(result) (((result) >> 16) & 0xff) #define sense_class(sense) (((sense) >> 4) & 0x7) diff --git a/include/scsi/scsi_proto.h b/include/scsi/scsi_proto.h index c36860111932..80bb1c5f11f1 100644 --- a/include/scsi/scsi_proto.h +++ b/include/scsi/scsi_proto.h @@ -202,27 +202,7 @@ struct scsi_varlen_cdb_hdr { #define SAM_STAT_ACA_ACTIVE 0x30 #define SAM_STAT_TASK_ABORTED 0x40 -/* - * Status codes. These are deprecated as they are shifted 1 bit right - * from those found in the SCSI standards. This causes confusion for - * applications that are ported to several OSes. Prefer SAM Status codes - * above. - */ - -#define GOOD 0x00 -#define CHECK_CONDITION 0x01 -#define CONDITION_GOOD 0x02 -#define BUSY 0x04 -#define INTERMEDIATE_GOOD 0x08 -#define INTERMEDIATE_C_GOOD 0x0a -#define RESERVATION_CONFLICT 0x0c -#define COMMAND_TERMINATED 0x11 -#define QUEUE_FULL 0x14 -#define ACA_ACTIVE 0x18 -#define TASK_ABORTED 0x20 - -#define STATUS_MASK 0xfe - +#define STATUS_MASK 0xfe /* * SENSE KEYS */ diff --git a/include/scsi/sg.h b/include/scsi/sg.h index 350470298aef..b4cc2bdffd95 100644 --- a/include/scsi/sg.h +++ b/include/scsi/sg.h @@ -136,6 +136,26 @@ struct compat_sg_io_hdr { /* Obsolete driver_byte() declaration */ #define driver_byte(result) (((result) >> 24) & 0xff) +/* + * Original linux SCS Status codes. They are shifted 1 bit right + * from those found in the SCSI standards. + */ + +#define GOOD 0x00 +#define CHECK_CONDITION 0x01 +#define CONDITION_GOOD 0x02 +#define BUSY 0x04 +#define INTERMEDIATE_GOOD 0x08 +#define INTERMEDIATE_C_GOOD 0x0a +#define RESERVATION_CONFLICT 0x0c +#define COMMAND_TERMINATED 0x11 +#define QUEUE_FULL 0x14 +#define ACA_ACTIVE 0x18 +#define TASK_ABORTED 0x20 + +/* Obsolete status_byte() declaration */ +#define status_byte(result) (((result) >> 1) & 0x7f) + typedef struct sg_scsi_id { /* used by SG_GET_SCSI_ID ioctl() */ int host_no; /* as in "scsi" where 'n' is one of 0, 1, 2 etc */ int channel;