diff options
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/ahci.h | 2 | ||||
| -rw-r--r-- | drivers/ata/libata-sata.c | 171 | ||||
| -rw-r--r-- | drivers/ata/libata-scsi.c | 19 | ||||
| -rw-r--r-- | drivers/ata/libata.h | 3 | ||||
| -rw-r--r-- | drivers/ata/pata_macio.c | 11 | ||||
| -rw-r--r-- | drivers/ata/sata_mv.c | 2 | ||||
| -rw-r--r-- | drivers/ata/sata_nv.c | 24 | ||||
| -rw-r--r-- | drivers/ata/sata_sil24.c | 2 |
8 files changed, 165 insertions, 69 deletions
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h index 344c87210d8f..8f40f75ba08c 100644 --- a/drivers/ata/ahci.h +++ b/drivers/ata/ahci.h @@ -397,7 +397,7 @@ extern const struct attribute_group *ahci_sdev_groups[]; .sdev_groups = ahci_sdev_groups, \ .change_queue_depth = ata_scsi_change_queue_depth, \ .tag_alloc_policy = BLK_TAG_ALLOC_RR, \ - .slave_configure = ata_scsi_slave_config + .device_configure = ata_scsi_device_configure extern struct ata_port_operations ahci_ops; extern struct ata_port_operations ahci_platform_ops; diff --git a/drivers/ata/libata-sata.c b/drivers/ata/libata-sata.c index 0fb1934875f2..9e047bf912b1 100644 --- a/drivers/ata/libata-sata.c +++ b/drivers/ata/libata-sata.c @@ -848,80 +848,143 @@ DEVICE_ATTR(link_power_management_policy, S_IRUGO | S_IWUSR, ata_scsi_lpm_show, ata_scsi_lpm_store); EXPORT_SYMBOL_GPL(dev_attr_link_power_management_policy); -static ssize_t ata_ncq_prio_supported_show(struct device *device, - struct device_attribute *attr, - char *buf) +/** + * ata_ncq_prio_supported - Check if device supports NCQ Priority + * @ap: ATA port of the target device + * @sdev: SCSI device + * @supported: Address of a boolean to store the result + * + * Helper to check if device supports NCQ Priority feature. + * + * Context: Any context. Takes and releases @ap->lock. + * + * Return: + * * %0 - OK. Status is stored into @supported + * * %-ENODEV - Failed to find the ATA device + */ +int ata_ncq_prio_supported(struct ata_port *ap, struct scsi_device *sdev, + bool *supported) { - struct scsi_device *sdev = to_scsi_device(device); - struct ata_port *ap = ata_shost_to_port(sdev->host); struct ata_device *dev; - bool ncq_prio_supported; + unsigned long flags; int rc = 0; - spin_lock_irq(ap->lock); + spin_lock_irqsave(ap->lock, flags); dev = ata_scsi_find_dev(ap, sdev); if (!dev) rc = -ENODEV; else - ncq_prio_supported = dev->flags & ATA_DFLAG_NCQ_PRIO; - spin_unlock_irq(ap->lock); + *supported = dev->flags & ATA_DFLAG_NCQ_PRIO; + spin_unlock_irqrestore(ap->lock, flags); + + return rc; +} +EXPORT_SYMBOL_GPL(ata_ncq_prio_supported); + +static ssize_t ata_ncq_prio_supported_show(struct device *device, + struct device_attribute *attr, + char *buf) +{ + struct scsi_device *sdev = to_scsi_device(device); + struct ata_port *ap = ata_shost_to_port(sdev->host); + bool supported; + int rc; + + rc = ata_ncq_prio_supported(ap, sdev, &supported); + if (rc) + return rc; - return rc ? rc : sysfs_emit(buf, "%u\n", ncq_prio_supported); + return sysfs_emit(buf, "%d\n", supported); } DEVICE_ATTR(ncq_prio_supported, S_IRUGO, ata_ncq_prio_supported_show, NULL); EXPORT_SYMBOL_GPL(dev_attr_ncq_prio_supported); -static ssize_t ata_ncq_prio_enable_show(struct device *device, - struct device_attribute *attr, - char *buf) +/** + * ata_ncq_prio_enabled - Check if NCQ Priority is enabled + * @ap: ATA port of the target device + * @sdev: SCSI device + * @enabled: Address of a boolean to store the result + * + * Helper to check if NCQ Priority feature is enabled. + * + * Context: Any context. Takes and releases @ap->lock. + * + * Return: + * * %0 - OK. Status is stored into @enabled + * * %-ENODEV - Failed to find the ATA device + */ +int ata_ncq_prio_enabled(struct ata_port *ap, struct scsi_device *sdev, + bool *enabled) { - struct scsi_device *sdev = to_scsi_device(device); - struct ata_port *ap = ata_shost_to_port(sdev->host); struct ata_device *dev; - bool ncq_prio_enable; + unsigned long flags; int rc = 0; - spin_lock_irq(ap->lock); + spin_lock_irqsave(ap->lock, flags); dev = ata_scsi_find_dev(ap, sdev); if (!dev) rc = -ENODEV; else - ncq_prio_enable = dev->flags & ATA_DFLAG_NCQ_PRIO_ENABLED; - spin_unlock_irq(ap->lock); + *enabled = dev->flags & ATA_DFLAG_NCQ_PRIO_ENABLED; + spin_unlock_irqrestore(ap->lock, flags); - return rc ? rc : sysfs_emit(buf, "%u\n", ncq_prio_enable); + return rc; } +EXPORT_SYMBOL_GPL(ata_ncq_prio_enabled); -static ssize_t ata_ncq_prio_enable_store(struct device *device, - struct device_attribute *attr, - const char *buf, size_t len) +static ssize_t ata_ncq_prio_enable_show(struct device *device, + struct device_attribute *attr, + char *buf) { struct scsi_device *sdev = to_scsi_device(device); - struct ata_port *ap; - struct ata_device *dev; - long int input; - int rc = 0; + struct ata_port *ap = ata_shost_to_port(sdev->host); + bool enabled; + int rc; - rc = kstrtol(buf, 10, &input); + rc = ata_ncq_prio_enabled(ap, sdev, &enabled); if (rc) return rc; - if ((input < 0) || (input > 1)) - return -EINVAL; - ap = ata_shost_to_port(sdev->host); - dev = ata_scsi_find_dev(ap, sdev); - if (unlikely(!dev)) - return -ENODEV; + return sysfs_emit(buf, "%d\n", enabled); +} + +/** + * ata_ncq_prio_enable - Enable/disable NCQ Priority + * @ap: ATA port of the target device + * @sdev: SCSI device + * @enable: true - enable NCQ Priority, false - disable NCQ Priority + * + * Helper to enable/disable NCQ Priority feature. + * + * Context: Any context. Takes and releases @ap->lock. + * + * Return: + * * %0 - OK. Status is stored into @enabled + * * %-ENODEV - Failed to find the ATA device + * * %-EINVAL - NCQ Priority is not supported or CDL is enabled + */ +int ata_ncq_prio_enable(struct ata_port *ap, struct scsi_device *sdev, + bool enable) +{ + struct ata_device *dev; + unsigned long flags; + int rc = 0; + + spin_lock_irqsave(ap->lock, flags); - spin_lock_irq(ap->lock); + dev = ata_scsi_find_dev(ap, sdev); + if (!dev) { + rc = -ENODEV; + goto unlock; + } if (!(dev->flags & ATA_DFLAG_NCQ_PRIO)) { rc = -EINVAL; goto unlock; } - if (input) { + if (enable) { if (dev->flags & ATA_DFLAG_CDL_ENABLED) { ata_dev_err(dev, "CDL must be disabled to enable NCQ priority\n"); @@ -934,9 +997,30 @@ static ssize_t ata_ncq_prio_enable_store(struct device *device, } unlock: - spin_unlock_irq(ap->lock); + spin_unlock_irqrestore(ap->lock, flags); + + return rc; +} +EXPORT_SYMBOL_GPL(ata_ncq_prio_enable); + +static ssize_t ata_ncq_prio_enable_store(struct device *device, + struct device_attribute *attr, + const char *buf, size_t len) +{ + struct scsi_device *sdev = to_scsi_device(device); + struct ata_port *ap = ata_shost_to_port(sdev->host); + bool enable; + int rc; + + rc = kstrtobool(buf, &enable); + if (rc) + return rc; + + rc = ata_ncq_prio_enable(ap, sdev, enable); + if (rc) + return rc; - return rc ? rc : len; + return len; } DEVICE_ATTR(ncq_prio_enable, S_IRUGO | S_IWUSR, @@ -1170,21 +1254,24 @@ void ata_sas_tport_delete(struct ata_port *ap) EXPORT_SYMBOL_GPL(ata_sas_tport_delete); /** - * ata_sas_slave_configure - Default slave_config routine for libata devices + * ata_sas_device_configure - Default device_configure routine for libata + * devices * @sdev: SCSI device to configure + * @lim: queue limits * @ap: ATA port to which SCSI device is attached * * RETURNS: * Zero. */ -int ata_sas_slave_configure(struct scsi_device *sdev, struct ata_port *ap) +int ata_sas_device_configure(struct scsi_device *sdev, struct queue_limits *lim, + struct ata_port *ap) { ata_scsi_sdev_config(sdev); - return ata_scsi_dev_config(sdev, ap->link.device); + return ata_scsi_dev_config(sdev, lim, ap->link.device); } -EXPORT_SYMBOL_GPL(ata_sas_slave_configure); +EXPORT_SYMBOL_GPL(ata_sas_device_configure); /** * ata_sas_queuecmd - Issue SCSI cdb to libata-managed device diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index e954976891a9..cdf29b178ddc 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -1021,7 +1021,8 @@ bool ata_scsi_dma_need_drain(struct request *rq) } EXPORT_SYMBOL_GPL(ata_scsi_dma_need_drain); -int ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev) +int ata_scsi_dev_config(struct scsi_device *sdev, struct queue_limits *lim, + struct ata_device *dev) { struct request_queue *q = sdev->request_queue; int depth = 1; @@ -1031,7 +1032,7 @@ int ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev) /* configure max sectors */ dev->max_sectors = min(dev->max_sectors, sdev->host->max_sectors); - blk_queue_max_hw_sectors(q, dev->max_sectors); + lim->max_hw_sectors = dev->max_sectors; if (dev->class == ATA_DEV_ATAPI) { sdev->sector_size = ATA_SECT_SIZE; @@ -1040,7 +1041,7 @@ int ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev) blk_queue_update_dma_pad(q, ATA_DMA_PAD_SZ - 1); /* make room for appending the drain */ - blk_queue_max_segments(q, queue_max_segments(q) - 1); + lim->max_segments--; sdev->dma_drain_len = ATAPI_MAX_DRAIN; sdev->dma_drain_buf = kmalloc(sdev->dma_drain_len, GFP_NOIO); @@ -1077,7 +1078,7 @@ int ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev) "sector_size=%u > PAGE_SIZE, PIO may malfunction\n", sdev->sector_size); - blk_queue_update_dma_alignment(q, sdev->sector_size - 1); + lim->dma_alignment = sdev->sector_size - 1; if (dev->flags & ATA_DFLAG_AN) set_bit(SDEV_EVT_MEDIA_CHANGE, sdev->supported_events); @@ -1131,8 +1132,9 @@ int ata_scsi_slave_alloc(struct scsi_device *sdev) EXPORT_SYMBOL_GPL(ata_scsi_slave_alloc); /** - * ata_scsi_slave_config - Set SCSI device attributes + * ata_scsi_device_configure - Set SCSI device attributes * @sdev: SCSI device to examine + * @lim: queue limits * * This is called before we actually start reading * and writing to the device, to configure certain @@ -1142,17 +1144,18 @@ EXPORT_SYMBOL_GPL(ata_scsi_slave_alloc); * Defined by SCSI layer. We don't really care. */ -int ata_scsi_slave_config(struct scsi_device *sdev) +int ata_scsi_device_configure(struct scsi_device *sdev, + struct queue_limits *lim) { struct ata_port *ap = ata_shost_to_port(sdev->host); struct ata_device *dev = __ata_scsi_find_dev(ap, sdev); if (dev) - return ata_scsi_dev_config(sdev, dev); + return ata_scsi_dev_config(sdev, lim, dev); return 0; } -EXPORT_SYMBOL_GPL(ata_scsi_slave_config); +EXPORT_SYMBOL_GPL(ata_scsi_device_configure); /** * ata_scsi_slave_destroy - SCSI device is about to be destroyed diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index 1a9881dc2aa1..38ce13b55474 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -131,7 +131,8 @@ extern void ata_scsi_dev_rescan(struct work_struct *work); extern int ata_scsi_user_scan(struct Scsi_Host *shost, unsigned int channel, unsigned int id, u64 lun); void ata_scsi_sdev_config(struct scsi_device *sdev); -int ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev); +int ata_scsi_dev_config(struct scsi_device *sdev, struct queue_limits *lim, + struct ata_device *dev); int __ata_scsi_queuecmd(struct scsi_cmnd *scmd, struct ata_device *dev); /* libata-eh.c */ diff --git a/drivers/ata/pata_macio.c b/drivers/ata/pata_macio.c index 88b2e9817f49..817838e2f70e 100644 --- a/drivers/ata/pata_macio.c +++ b/drivers/ata/pata_macio.c @@ -796,7 +796,8 @@ static void pata_macio_reset_hw(struct pata_macio_priv *priv, int resume) /* Hook the standard slave config to fixup some HW related alignment * restrictions */ -static int pata_macio_slave_config(struct scsi_device *sdev) +static int pata_macio_device_configure(struct scsi_device *sdev, + struct queue_limits *lim) { struct ata_port *ap = ata_shost_to_port(sdev->host); struct pata_macio_priv *priv = ap->private_data; @@ -805,7 +806,7 @@ static int pata_macio_slave_config(struct scsi_device *sdev) int rc; /* First call original */ - rc = ata_scsi_slave_config(sdev); + rc = ata_scsi_device_configure(sdev, lim); if (rc) return rc; @@ -814,7 +815,7 @@ static int pata_macio_slave_config(struct scsi_device *sdev) /* OHare has issues with non cache aligned DMA on some chipsets */ if (priv->kind == controller_ohare) { - blk_queue_update_dma_alignment(sdev->request_queue, 31); + lim->dma_alignment = 31; blk_queue_update_dma_pad(sdev->request_queue, 31); /* Tell the world about it */ @@ -829,7 +830,7 @@ static int pata_macio_slave_config(struct scsi_device *sdev) /* Shasta and K2 seem to have "issues" with reads ... */ if (priv->kind == controller_sh_ata6 || priv->kind == controller_k2_ata6) { /* Allright these are bad, apply restrictions */ - blk_queue_update_dma_alignment(sdev->request_queue, 15); + lim->dma_alignment = 15; blk_queue_update_dma_pad(sdev->request_queue, 15); /* We enable MWI and hack cache line size directly here, this @@ -918,7 +919,7 @@ static const struct scsi_host_template pata_macio_sht = { * use 64K minus 256 */ .max_segment_size = MAX_DBDMA_SEG, - .slave_configure = pata_macio_slave_config, + .device_configure = pata_macio_device_configure, .sdev_groups = ata_common_sdev_groups, .can_queue = ATA_DEF_QUEUE, .tag_alloc_policy = BLK_TAG_ALLOC_RR, diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 9bec0aee92e0..05c905827dc5 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -673,7 +673,7 @@ static const struct scsi_host_template mv6_sht = { .sdev_groups = ata_ncq_sdev_groups, .change_queue_depth = ata_scsi_change_queue_depth, .tag_alloc_policy = BLK_TAG_ALLOC_RR, - .slave_configure = ata_scsi_slave_config + .device_configure = ata_scsi_device_configure }; static struct ata_port_operations mv5_ops = { diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index 0a0cee755bde..36d99043ef50 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -296,7 +296,8 @@ static void nv_nf2_freeze(struct ata_port *ap); static void nv_nf2_thaw(struct ata_port *ap); static void nv_ck804_freeze(struct ata_port *ap); static void nv_ck804_thaw(struct ata_port *ap); -static int nv_adma_slave_config(struct scsi_device *sdev); +static int nv_adma_device_configure(struct scsi_device *sdev, + struct queue_limits *lim); static int nv_adma_check_atapi_dma(struct ata_queued_cmd *qc); static enum ata_completion_errors nv_adma_qc_prep(struct ata_queued_cmd *qc); static unsigned int nv_adma_qc_issue(struct ata_queued_cmd *qc); @@ -318,7 +319,8 @@ static void nv_adma_tf_read(struct ata_port *ap, struct ata_taskfile *tf); static void nv_mcp55_thaw(struct ata_port *ap); static void nv_mcp55_freeze(struct ata_port *ap); static void nv_swncq_error_handler(struct ata_port *ap); -static int nv_swncq_slave_config(struct scsi_device *sdev); +static int nv_swncq_device_configure(struct scsi_device *sdev, + struct queue_limits *lim); static int nv_swncq_port_start(struct ata_port *ap); static enum ata_completion_errors nv_swncq_qc_prep(struct ata_queued_cmd *qc); static void nv_swncq_fill_sg(struct ata_queued_cmd *qc); @@ -380,7 +382,7 @@ static const struct scsi_host_template nv_adma_sht = { .can_queue = NV_ADMA_MAX_CPBS, .sg_tablesize = NV_ADMA_SGTBL_TOTAL_LEN, .dma_boundary = NV_ADMA_DMA_BOUNDARY, - .slave_configure = nv_adma_slave_config, + .device_configure = nv_adma_device_configure, .sdev_groups = ata_ncq_sdev_groups, .change_queue_depth = ata_scsi_change_queue_depth, .tag_alloc_policy = BLK_TAG_ALLOC_RR, @@ -391,7 +393,7 @@ static const struct scsi_host_template nv_swncq_sht = { .can_queue = ATA_MAX_QUEUE - 1, .sg_tablesize = LIBATA_MAX_PRD, .dma_boundary = ATA_DMA_BOUNDARY, - .slave_configure = nv_swncq_slave_config, + .device_configure = nv_swncq_device_configure, .sdev_groups = ata_ncq_sdev_groups, .change_queue_depth = ata_scsi_change_queue_depth, .tag_alloc_policy = BLK_TAG_ALLOC_RR, @@ -661,7 +663,8 @@ static void nv_adma_mode(struct ata_port *ap) pp->flags &= ~NV_ADMA_PORT_REGISTER_MODE; } -static int nv_adma_slave_config(struct scsi_device *sdev) +static int nv_adma_device_configure(struct scsi_device *sdev, + struct queue_limits *lim) { struct ata_port *ap = ata_shost_to_port(sdev->host); struct nv_adma_port_priv *pp = ap->private_data; @@ -673,7 +676,7 @@ static int nv_adma_slave_config(struct scsi_device *sdev) int adma_enable; u32 current_reg, new_reg, config_mask; - rc = ata_scsi_slave_config(sdev); + rc = ata_scsi_device_configure(sdev, lim); if (sdev->id >= ATA_MAX_DEVICES || sdev->channel || sdev->lun) /* Not a proper libata device, ignore */ @@ -740,8 +743,8 @@ static int nv_adma_slave_config(struct scsi_device *sdev) rc = dma_set_mask(&pdev->dev, pp->adma_dma_mask); } - blk_queue_segment_boundary(sdev->request_queue, segment_boundary); - blk_queue_max_segments(sdev->request_queue, sg_tablesize); + lim->seg_boundary_mask = segment_boundary; + lim->max_segments = sg_tablesize; ata_port_info(ap, "DMA mask 0x%llX, segment boundary 0x%lX, hw segs %hu\n", (unsigned long long)*ap->host->dev->dma_mask, @@ -1868,7 +1871,8 @@ static void nv_swncq_host_init(struct ata_host *host) writel(~0x0, mmio + NV_INT_STATUS_MCP55); } -static int nv_swncq_slave_config(struct scsi_device *sdev) +static int nv_swncq_device_configure(struct scsi_device *sdev, + struct queue_limits *lim) { struct ata_port *ap = ata_shost_to_port(sdev->host); struct pci_dev *pdev = to_pci_dev(ap->host->dev); @@ -1878,7 +1882,7 @@ static int nv_swncq_slave_config(struct scsi_device *sdev) u8 check_maxtor = 0; unsigned char model_num[ATA_ID_PROD_LEN + 1]; - rc = ata_scsi_slave_config(sdev); + rc = ata_scsi_device_configure(sdev, lim); if (sdev->id >= ATA_MAX_DEVICES || sdev->channel || sdev->lun) /* Not a proper libata device, ignore */ return rc; diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c index 142e70bfc498..72c03cbdaff4 100644 --- a/drivers/ata/sata_sil24.c +++ b/drivers/ata/sata_sil24.c @@ -381,7 +381,7 @@ static const struct scsi_host_template sil24_sht = { .tag_alloc_policy = BLK_TAG_ALLOC_FIFO, .sdev_groups = ata_ncq_sdev_groups, .change_queue_depth = ata_scsi_change_queue_depth, - .slave_configure = ata_scsi_slave_config + .device_configure = ata_scsi_device_configure }; static struct ata_port_operations sil24_ops = { |