diff options
Diffstat (limited to 'drivers/scsi/libsas/sas_scsi_host.c')
| -rw-r--r-- | drivers/scsi/libsas/sas_scsi_host.c | 87 |
1 files changed, 76 insertions, 11 deletions
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index b4b52694497c..7663841eb4cf 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -34,19 +34,19 @@ #include <scsi/scsi_eh.h> #include <scsi/scsi_transport.h> #include <scsi/scsi_transport_sas.h> +#include <scsi/sas_ata.h> #include "../scsi_sas_internal.h" #include "../scsi_transport_api.h" #include "../scsi_priv.h" #include <linux/err.h> #include <linux/blkdev.h> +#include <linux/freezer.h> #include <linux/scatterlist.h> +#include <linux/libata.h> /* ---------- SCSI Host glue ---------- */ -#define TO_SAS_TASK(_scsi_cmd) ((void *)(_scsi_cmd)->host_scribble) -#define ASSIGN_SAS_TASK(_sc, _t) do { (_sc)->host_scribble = (void *) _t; } while (0) - static void sas_scsi_task_done(struct sas_task *task) { struct task_status_struct *ts = &task->task_status; @@ -76,8 +76,8 @@ static void sas_scsi_task_done(struct sas_task *task) hs = DID_NO_CONNECT; break; case SAS_DATA_UNDERRUN: - sc->resid = ts->residual; - if (sc->request_bufflen - sc->resid < sc->underflow) + scsi_set_resid(sc, ts->residual); + if (scsi_bufflen(sc) - scsi_get_resid(sc) < sc->underflow) hs = DID_ERROR; break; case SAS_DATA_OVERRUN: @@ -161,9 +161,9 @@ static struct sas_task *sas_create_task(struct scsi_cmnd *cmd, task->ssp_task.task_attr = sas_scsi_get_task_attr(cmd); memcpy(task->ssp_task.cdb, cmd->cmnd, 16); - task->scatter = cmd->request_buffer; - task->num_scatter = cmd->use_sg; - task->total_xfer_len = cmd->request_bufflen; + task->scatter = scsi_sglist(cmd); + task->num_scatter = scsi_sg_count(cmd); + task->total_xfer_len = scsi_bufflen(cmd); task->data_dir = cmd->sc_data_direction; task->task_done = sas_scsi_task_done; @@ -171,7 +171,7 @@ static struct sas_task *sas_create_task(struct scsi_cmnd *cmd, return task; } -static int sas_queue_up(struct sas_task *task) +int sas_queue_up(struct sas_task *task) { struct sas_ha_struct *sas_ha = task->dev->port->ha; struct scsi_core *core = &sas_ha->core; @@ -212,6 +212,16 @@ int sas_queuecommand(struct scsi_cmnd *cmd, struct sas_ha_struct *sas_ha = dev->port->ha; struct sas_task *task; + if (dev_is_sata(dev)) { + unsigned long flags; + + spin_lock_irqsave(dev->sata_dev.ap->lock, flags); + res = ata_sas_queuecmd(cmd, scsi_done, + dev->sata_dev.ap); + spin_unlock_irqrestore(dev->sata_dev.ap->lock, flags); + goto out; + } + res = -ENOMEM; task = sas_create_task(cmd, dev, GFP_ATOMIC); if (!task) @@ -683,6 +693,16 @@ enum scsi_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *cmd) return EH_NOT_HANDLED; } +int sas_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) +{ + struct domain_device *dev = sdev_to_domain_dev(sdev); + + if (dev_is_sata(dev)) + return ata_scsi_ioctl(sdev, cmd, arg); + + return -EINVAL; +} + struct domain_device *sas_find_dev_by_rphy(struct sas_rphy *rphy) { struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent); @@ -722,10 +742,17 @@ static inline struct domain_device *sas_find_target(struct scsi_target *starget) int sas_target_alloc(struct scsi_target *starget) { struct domain_device *found_dev = sas_find_target(starget); + int res; if (!found_dev) return -ENODEV; + if (dev_is_sata(found_dev)) { + res = sas_ata_init_host_and_port(found_dev, starget); + if (res) + return res; + } + starget->hostdata = found_dev; return 0; } @@ -740,6 +767,11 @@ int sas_slave_configure(struct scsi_device *scsi_dev) BUG_ON(dev->rphy->identify.device_type != SAS_END_DEVICE); + if (dev_is_sata(dev)) { + ata_sas_slave_configure(scsi_dev, dev->sata_dev.ap); + return 0; + } + sas_ha = dev->port->ha; sas_read_port_mode_page(scsi_dev); @@ -763,6 +795,10 @@ int sas_slave_configure(struct scsi_device *scsi_dev) void sas_slave_destroy(struct scsi_device *scsi_dev) { + struct domain_device *dev = sdev_to_domain_dev(scsi_dev); + + if (dev_is_sata(dev)) + ata_port_disable(dev->sata_dev.ap); } int sas_change_queue_depth(struct scsi_device *scsi_dev, int new_depth) @@ -868,8 +904,6 @@ static int sas_queue_thread(void *_sas_ha) { struct sas_ha_struct *sas_ha = _sas_ha; - current->flags |= PF_NOFREEZE; - while (1) { set_current_state(TASK_INTERRUPTIBLE); schedule(); @@ -981,10 +1015,38 @@ void sas_task_abort(struct sas_task *task) return; } + if (dev_is_sata(task->dev)) { + sas_ata_task_abort(task); + return; + } + scsi_req_abort_cmd(sc); scsi_schedule_eh(sc->device->host); } +int sas_slave_alloc(struct scsi_device *scsi_dev) +{ + struct domain_device *dev = sdev_to_domain_dev(scsi_dev); + + if (dev_is_sata(dev)) + return ata_sas_port_init(dev->sata_dev.ap); + + return 0; +} + +void sas_target_destroy(struct scsi_target *starget) +{ + struct domain_device *found_dev = sas_find_target(starget); + + if (!found_dev) + return; + + if (dev_is_sata(found_dev)) + ata_sas_port_destroy(found_dev->sata_dev.ap); + + return; +} + EXPORT_SYMBOL_GPL(sas_queuecommand); EXPORT_SYMBOL_GPL(sas_target_alloc); EXPORT_SYMBOL_GPL(sas_slave_configure); @@ -998,3 +1060,6 @@ EXPORT_SYMBOL_GPL(sas_phy_reset); EXPORT_SYMBOL_GPL(sas_phy_enable); EXPORT_SYMBOL_GPL(sas_eh_device_reset_handler); EXPORT_SYMBOL_GPL(sas_eh_bus_reset_handler); +EXPORT_SYMBOL_GPL(sas_slave_alloc); +EXPORT_SYMBOL_GPL(sas_target_destroy); +EXPORT_SYMBOL_GPL(sas_ioctl); |