From 1cbd772d9aaf6c697935cb855860b66cebacf950 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Wed, 5 Nov 2014 13:08:20 +0100 Subject: [PATCH] libsas: use ata_dev_classify() Use the ata device class from libata in libsas instead of checking the supported command set and switch to using ata_dev_classify() instead of our own method. Cc: Tejun Heo Cc: Dan Williams Acked-by: Christoph Hellwig Signed-off-by: Hannes Reinecke Signed-off-by: Tejun Heo --- drivers/scsi/aic94xx/aic94xx_task.c | 10 ++--- drivers/scsi/isci/request.c | 4 +- drivers/scsi/libsas/sas_ata.c | 66 +++++------------------------ drivers/scsi/mvsas/mv_sas.c | 4 +- drivers/scsi/pm8001/pm8001_hwi.c | 2 +- drivers/scsi/pm8001/pm80xx_hwi.c | 2 +- include/scsi/libsas.h | 11 ++--- 7 files changed, 25 insertions(+), 74 deletions(-) diff --git a/drivers/scsi/aic94xx/aic94xx_task.c b/drivers/scsi/aic94xx/aic94xx_task.c index 59b86e260ce9..7abbe42e862e 100644 --- a/drivers/scsi/aic94xx/aic94xx_task.c +++ b/drivers/scsi/aic94xx/aic94xx_task.c @@ -373,10 +373,10 @@ static int asd_build_ata_ascb(struct asd_ascb *ascb, struct sas_task *task, if (unlikely(task->ata_task.device_control_reg_update)) scb->header.opcode = CONTROL_ATA_DEV; - else if (dev->sata_dev.command_set == ATA_COMMAND_SET) - scb->header.opcode = INITIATE_ATA_TASK; - else + else if (dev->sata_dev.class == ATA_DEV_ATAPI) scb->header.opcode = INITIATE_ATAPI_TASK; + else + scb->header.opcode = INITIATE_ATA_TASK; scb->ata_task.proto_conn_rate = (1 << 5); /* STP */ if (dev->port->oob_mode == SAS_OOB_MODE) @@ -387,7 +387,7 @@ static int asd_build_ata_ascb(struct asd_ascb *ascb, struct sas_task *task, if (likely(!task->ata_task.device_control_reg_update)) scb->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */ scb->ata_task.fis.flags &= 0xF0; /* PM_PORT field shall be 0 */ - if (dev->sata_dev.command_set == ATAPI_COMMAND_SET) + if (dev->sata_dev.class == ATA_DEV_ATAPI) memcpy(scb->ata_task.atapi_packet, task->ata_task.atapi_packet, 16); scb->ata_task.sister_scb = cpu_to_le16(0xFFFF); @@ -399,7 +399,7 @@ static int asd_build_ata_ascb(struct asd_ascb *ascb, struct sas_task *task, if (task->ata_task.dma_xfer) flags |= DATA_XFER_MODE_DMA; if (task->ata_task.use_ncq && - dev->sata_dev.command_set != ATAPI_COMMAND_SET) + dev->sata_dev.class != ATA_DEV_ATAPI) flags |= ATA_Q_TYPE_NCQ; flags |= data_dir_flags[task->data_dir]; scb->ata_task.ata_flags = flags; diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 56e38096f0c4..cfd0084f1cd2 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -694,7 +694,7 @@ sci_io_request_construct_sata(struct isci_request *ireq, } /* ATAPI */ - if (dev->sata_dev.command_set == ATAPI_COMMAND_SET && + if (dev->sata_dev.class == ATA_DEV_ATAPI && task->ata_task.fis.command == ATA_CMD_PACKET) { sci_atapi_construct(ireq); return SCI_SUCCESS; @@ -2980,7 +2980,7 @@ static void sci_request_started_state_enter(struct sci_base_state_machine *sm) state = SCI_REQ_SMP_WAIT_RESP; } else if (task && sas_protocol_ata(task->task_proto) && !task->ata_task.use_ncq) { - if (dev->sata_dev.command_set == ATAPI_COMMAND_SET && + if (dev->sata_dev.class == ATA_DEV_ATAPI && task->ata_task.fis.command == ATA_CMD_PACKET) { state = SCI_REQ_ATAPI_WAIT_H2D; } else if (task->data_dir == DMA_NONE) { diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c index 766098af4eb7..9f68db7ed5f1 100644 --- a/drivers/scsi/libsas/sas_ata.c +++ b/drivers/scsi/libsas/sas_ata.c @@ -138,7 +138,7 @@ static void sas_ata_task_done(struct sas_task *task) if (stat->stat == SAS_PROTO_RESPONSE || stat->stat == SAM_STAT_GOOD || ((stat->stat == SAM_STAT_CHECK_CONDITION && - dev->sata_dev.command_set == ATAPI_COMMAND_SET))) { + dev->sata_dev.class == ATA_DEV_ATAPI))) { memcpy(dev->sata_dev.fis, resp->ending_fis, ATA_RESP_FIS_SIZE); if (!link->sactive) { @@ -278,7 +278,7 @@ static struct sas_internal *dev_to_sas_internal(struct domain_device *dev) return to_sas_internal(dev->port->ha->core.shost->transportt); } -static void sas_get_ata_command_set(struct domain_device *dev); +static int sas_get_ata_command_set(struct domain_device *dev); int sas_get_ata_info(struct domain_device *dev, struct ex_phy *phy) { @@ -303,8 +303,7 @@ int sas_get_ata_info(struct domain_device *dev, struct ex_phy *phy) } memcpy(dev->frame_rcvd, &dev->sata_dev.rps_resp.rps.fis, sizeof(struct dev_to_host_fis)); - /* TODO switch to ata_dev_classify() */ - sas_get_ata_command_set(dev); + dev->sata_dev.class = sas_get_ata_command_set(dev); } return 0; } @@ -425,18 +424,7 @@ static int sas_ata_hard_reset(struct ata_link *link, unsigned int *class, if (ret && ret != -EAGAIN) sas_ata_printk(KERN_ERR, dev, "reset failed (errno=%d)\n", ret); - /* XXX: if the class changes during the reset the upper layer - * should be informed, if the device has gone away we assume - * libsas will eventually delete it - */ - switch (dev->sata_dev.command_set) { - case ATA_COMMAND_SET: - *class = ATA_DEV_ATA; - break; - case ATAPI_COMMAND_SET: - *class = ATA_DEV_ATAPI; - break; - } + *class = dev->sata_dev.class; ap->cbl = ATA_CBL_SATA; return ret; @@ -626,50 +614,18 @@ void sas_ata_task_abort(struct sas_task *task) complete(waiting); } -static void sas_get_ata_command_set(struct domain_device *dev) +static int sas_get_ata_command_set(struct domain_device *dev) { struct dev_to_host_fis *fis = (struct dev_to_host_fis *) dev->frame_rcvd; + struct ata_taskfile tf; if (dev->dev_type == SAS_SATA_PENDING) - return; + return ATA_DEV_UNKNOWN; + + ata_tf_from_fis((const u8 *)fis, &tf); - if ((fis->sector_count == 1 && /* ATA */ - fis->lbal == 1 && - fis->lbam == 0 && - fis->lbah == 0 && - fis->device == 0) - || - (fis->sector_count == 0 && /* CE-ATA (mATA) */ - fis->lbal == 0 && - fis->lbam == 0xCE && - fis->lbah == 0xAA && - (fis->device & ~0x10) == 0)) - - dev->sata_dev.command_set = ATA_COMMAND_SET; - - else if ((fis->interrupt_reason == 1 && /* ATAPI */ - fis->lbal == 1 && - fis->byte_count_low == 0x14 && - fis->byte_count_high == 0xEB && - (fis->device & ~0x10) == 0)) - - dev->sata_dev.command_set = ATAPI_COMMAND_SET; - - else if ((fis->sector_count == 1 && /* SEMB */ - fis->lbal == 1 && - fis->lbam == 0x3C && - fis->lbah == 0xC3 && - fis->device == 0) - || - (fis->interrupt_reason == 1 && /* SATA PM */ - fis->lbal == 1 && - fis->byte_count_low == 0x69 && - fis->byte_count_high == 0x96 && - (fis->device & ~0x10) == 0)) - - /* Treat it as a superset? */ - dev->sata_dev.command_set = ATAPI_COMMAND_SET; + return ata_dev_classify(&tf); } void sas_probe_sata(struct asd_sas_port *port) @@ -775,7 +731,7 @@ int sas_discover_sata(struct domain_device *dev) if (dev->dev_type == SAS_SATA_PM) return -ENODEV; - sas_get_ata_command_set(dev); + dev->sata_dev.class = sas_get_ata_command_set(dev); sas_fill_in_rphy(dev, dev->rphy); res = sas_notify_lldd_dev_found(dev); diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c index ac52f7c99513..48a493cd285a 100644 --- a/drivers/scsi/mvsas/mv_sas.c +++ b/drivers/scsi/mvsas/mv_sas.c @@ -479,7 +479,7 @@ static int mvs_task_prep_ata(struct mvs_info *mvi, if (task->ata_task.use_ncq) flags |= MCH_FPDMA; - if (dev->sata_dev.command_set == ATAPI_COMMAND_SET) { + if (dev->sata_dev.class == ATA_DEV_ATAPI) { if (task->ata_task.fis.command != ATA_CMD_ID_ATAPI) flags |= MCH_ATAPI; } @@ -546,7 +546,7 @@ static int mvs_task_prep_ata(struct mvs_info *mvi, task->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */ /* fill in command FIS and ATAPI CDB */ memcpy(buf_cmd, &task->ata_task.fis, sizeof(struct host_to_dev_fis)); - if (dev->sata_dev.command_set == ATAPI_COMMAND_SET) + if (dev->sata_dev.class == ATA_DEV_ATAPI) memcpy(buf_cmd + STP_ATAPI_CMD, task->ata_task.atapi_packet, 16); diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c index 933f21471951..96dcc097a463 100644 --- a/drivers/scsi/pm8001/pm8001_hwi.c +++ b/drivers/scsi/pm8001/pm8001_hwi.c @@ -4367,7 +4367,7 @@ static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha, PM8001_IO_DBG(pm8001_ha, pm8001_printk("PIO\n")); } if (task->ata_task.use_ncq && - dev->sata_dev.command_set != ATAPI_COMMAND_SET) { + dev->sata_dev.class != ATA_DEV_ATAPI) { ATAP = 0x07; /* FPDMA */ PM8001_IO_DBG(pm8001_ha, pm8001_printk("FPDMA\n")); } diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c index b06443a0db2d..05cce463ab01 100644 --- a/drivers/scsi/pm8001/pm80xx_hwi.c +++ b/drivers/scsi/pm8001/pm80xx_hwi.c @@ -4077,7 +4077,7 @@ static int pm80xx_chip_sata_req(struct pm8001_hba_info *pm8001_ha, PM8001_IO_DBG(pm8001_ha, pm8001_printk("PIO\n")); } if (task->ata_task.use_ncq && - dev->sata_dev.command_set != ATAPI_COMMAND_SET) { + dev->sata_dev.class != ATA_DEV_ATAPI) { ATAP = 0x07; /* FPDMA */ PM8001_IO_DBG(pm8001_ha, pm8001_printk("FPDMA\n")); } diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index ef7872c20da9..8528a09a00c4 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -161,17 +161,12 @@ struct expander_device { }; /* ---------- SATA device ---------- */ -enum ata_command_set { - ATA_COMMAND_SET = 0, - ATAPI_COMMAND_SET = 1, -}; - #define ATA_RESP_FIS_SIZE 24 struct sata_device { - enum ata_command_set command_set; - struct smp_resp rps_resp; /* report_phy_sata_resp */ - u8 port_no; /* port number, if this is a PM (Port) */ + unsigned int class; + struct smp_resp rps_resp; /* report_phy_sata_resp */ + u8 port_no; /* port number, if this is a PM (Port) */ struct ata_port *ap; struct ata_host ata_host; -- 2.20.1