diff options
| -rw-r--r-- | drivers/scsi/aic94xx/aic94xx.h | 2 | ||||
| -rw-r--r-- | drivers/scsi/aic94xx/aic94xx_dev.c | 38 | ||||
| -rw-r--r-- | drivers/scsi/aic94xx/aic94xx_init.c | 2 | ||||
| -rw-r--r-- | drivers/scsi/libsas/sas_ata.c | 324 | ||||
| -rw-r--r-- | drivers/scsi/libsas/sas_discover.c | 5 | ||||
| -rw-r--r-- | include/scsi/libsas.h | 4 |
6 files changed, 49 insertions, 326 deletions
diff --git a/drivers/scsi/aic94xx/aic94xx.h b/drivers/scsi/aic94xx/aic94xx.h index 2863a9d2285..66cda669b41 100644 --- a/drivers/scsi/aic94xx/aic94xx.h +++ b/drivers/scsi/aic94xx/aic94xx.h @@ -80,6 +80,8 @@ void asd_invalidate_edb(struct asd_ascb *ascb, int edb_id); int asd_execute_task(struct sas_task *, int num, gfp_t gfp_flags); +void asd_set_dmamode(struct domain_device *dev); + /* ---------- TMFs ---------- */ int asd_abort_task(struct sas_task *); int asd_abort_task_set(struct domain_device *, u8 *lun); diff --git a/drivers/scsi/aic94xx/aic94xx_dev.c b/drivers/scsi/aic94xx/aic94xx_dev.c index 2e2ddec9c0b..64136c56e70 100644 --- a/drivers/scsi/aic94xx/aic94xx_dev.c +++ b/drivers/scsi/aic94xx/aic94xx_dev.c @@ -109,26 +109,37 @@ static int asd_init_sata_tag_ddb(struct domain_device *dev) return 0; } -static int asd_init_sata(struct domain_device *dev) +void asd_set_dmamode(struct domain_device *dev) { struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha; + struct ata_device *ata_dev = sas_to_ata_dev(dev); int ddb = (int) (unsigned long) dev->lldd_dev; u32 qdepth = 0; - int res = 0; - asd_ddbsite_write_word(asd_ha, ddb, ATA_CMD_SCBPTR, 0xFFFF); - if ((dev->dev_type == SATA_DEV || dev->dev_type == SATA_PM_PORT) && - dev->sata_dev.identify_device && - dev->sata_dev.identify_device[10] != 0) { - u16 w75 = le16_to_cpu(dev->sata_dev.identify_device[75]); - u16 w76 = le16_to_cpu(dev->sata_dev.identify_device[76]); - - if (w76 & 0x100) /* NCQ? */ - qdepth = (w75 & 0x1F) + 1; + if (dev->dev_type == SATA_DEV || dev->dev_type == SATA_PM_PORT) { + if (ata_id_has_ncq(ata_dev->id)) + qdepth = ata_id_queue_depth(ata_dev->id); asd_ddbsite_write_dword(asd_ha, ddb, SATA_TAG_ALLOC_MASK, (1ULL<<qdepth)-1); asd_ddbsite_write_byte(asd_ha, ddb, NUM_SATA_TAGS, qdepth); } + + if (qdepth > 0) + if (asd_init_sata_tag_ddb(dev) != 0) { + unsigned long flags; + + spin_lock_irqsave(dev->sata_dev.ap->lock, flags); + ata_dev->flags |= ATA_DFLAG_NCQ_OFF; + spin_unlock_irqrestore(dev->sata_dev.ap->lock, flags); + } +} + +static int asd_init_sata(struct domain_device *dev) +{ + struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha; + int ddb = (int) (unsigned long) dev->lldd_dev; + + asd_ddbsite_write_word(asd_ha, ddb, ATA_CMD_SCBPTR, 0xFFFF); if (dev->dev_type == SATA_DEV || dev->dev_type == SATA_PM || dev->dev_type == SATA_PM_PORT) { struct dev_to_host_fis *fis = (struct dev_to_host_fis *) @@ -136,9 +147,8 @@ static int asd_init_sata(struct domain_device *dev) asd_ddbsite_write_byte(asd_ha, ddb, SATA_STATUS, fis->status); } asd_ddbsite_write_word(asd_ha, ddb, NCQ_DATA_SCB_PTR, 0xFFFF); - if (qdepth > 0) - res = asd_init_sata_tag_ddb(dev); - return res; + + return 0; } static int asd_init_target_ddb(struct domain_device *dev) diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c index 2b3717f6d22..eea988a04f9 100644 --- a/drivers/scsi/aic94xx/aic94xx_init.c +++ b/drivers/scsi/aic94xx/aic94xx_init.c @@ -1009,6 +1009,8 @@ static struct sas_domain_function_template aic94xx_transport_functions = { .lldd_clear_nexus_ha = asd_clear_nexus_ha, .lldd_control_phy = asd_control_phy, + + .lldd_ata_set_dmamode = asd_set_dmamode, }; static const struct pci_device_id aic94xx_pci_table[] __devinitdata = { diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c index 4b6365c6410..71af919b856 100644 --- a/drivers/scsi/libsas/sas_ata.c +++ b/drivers/scsi/libsas/sas_ata.c @@ -367,6 +367,17 @@ static void sas_ata_post_internal(struct ata_queued_cmd *qc) } } + +static void sas_ata_set_dmamode(struct ata_port *ap, struct ata_device *ata_dev) +{ + struct domain_device *dev = ap->private_data; + struct sas_internal *i = + to_sas_internal(dev->port->ha->core.shost->transportt); + + if (i->dft->lldd_ata_set_dmamode) + i->dft->lldd_ata_set_dmamode(dev); +} + static struct ata_port_operations sas_sata_ops = { .prereset = ata_std_prereset, .softreset = sas_ata_soft_reset, @@ -380,6 +391,7 @@ static struct ata_port_operations sas_sata_ops = { .qc_fill_rtf = sas_ata_qc_fill_rtf, .port_start = ata_sas_port_start, .port_stop = ata_sas_port_stop, + .set_dmamode = sas_ata_set_dmamode, }; static struct ata_port_info sata_port_info = { @@ -442,163 +454,6 @@ void sas_ata_task_abort(struct sas_task *task) complete(waiting); } -static void sas_task_timedout(unsigned long _task) -{ - struct sas_task *task = (void *) _task; - unsigned long flags; - - spin_lock_irqsave(&task->task_state_lock, flags); - if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) - task->task_state_flags |= SAS_TASK_STATE_ABORTED; - spin_unlock_irqrestore(&task->task_state_lock, flags); - - complete(&task->completion); -} - -static void sas_disc_task_done(struct sas_task *task) -{ - if (!del_timer(&task->timer)) - return; - complete(&task->completion); -} - -#define SAS_DEV_TIMEOUT 10 - -/** - * sas_execute_task -- Basic task processing for discovery - * @task: the task to be executed - * @buffer: pointer to buffer to do I/O - * @size: size of @buffer - * @dma_dir: DMA direction. DMA_xxx - */ -static int sas_execute_task(struct sas_task *task, void *buffer, int size, - enum dma_data_direction dma_dir) -{ - int res = 0; - struct scatterlist *scatter = NULL; - struct task_status_struct *ts = &task->task_status; - int num_scatter = 0; - int retries = 0; - struct sas_internal *i = - to_sas_internal(task->dev->port->ha->core.shost->transportt); - - if (dma_dir != DMA_NONE) { - scatter = kzalloc(sizeof(*scatter), GFP_KERNEL); - if (!scatter) - goto out; - - sg_init_one(scatter, buffer, size); - num_scatter = 1; - } - - task->task_proto = task->dev->tproto; - task->scatter = scatter; - task->num_scatter = num_scatter; - task->total_xfer_len = size; - task->data_dir = dma_dir; - task->task_done = sas_disc_task_done; - if (dma_dir != DMA_NONE && - sas_protocol_ata(task->task_proto)) { - task->num_scatter = dma_map_sg(task->dev->port->ha->dev, - task->scatter, - task->num_scatter, - task->data_dir); - } - - for (retries = 0; retries < 5; retries++) { - task->task_state_flags = SAS_TASK_STATE_PENDING; - init_completion(&task->completion); - - task->timer.data = (unsigned long) task; - task->timer.function = sas_task_timedout; - task->timer.expires = jiffies + SAS_DEV_TIMEOUT*HZ; - add_timer(&task->timer); - - res = i->dft->lldd_execute_task(task, 1, GFP_KERNEL); - if (res) { - del_timer(&task->timer); - SAS_DPRINTK("executing SAS discovery task failed:%d\n", - res); - goto ex_err; - } - wait_for_completion(&task->completion); - res = -ECOMM; - if (task->task_state_flags & SAS_TASK_STATE_ABORTED) { - int res2; - SAS_DPRINTK("task aborted, flags:0x%x\n", - task->task_state_flags); - res2 = i->dft->lldd_abort_task(task); - SAS_DPRINTK("came back from abort task\n"); - if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { - if (res2 == TMF_RESP_FUNC_COMPLETE) - continue; /* Retry the task */ - else - goto ex_err; - } - } - if (task->task_status.stat == SAM_STAT_BUSY || - task->task_status.stat == SAM_STAT_TASK_SET_FULL || - task->task_status.stat == SAS_QUEUE_FULL) { - SAS_DPRINTK("task: q busy, sleeping...\n"); - schedule_timeout_interruptible(HZ); - } else if (task->task_status.stat == SAM_STAT_CHECK_CONDITION) { - struct scsi_sense_hdr shdr; - - if (!scsi_normalize_sense(ts->buf, ts->buf_valid_size, - &shdr)) { - SAS_DPRINTK("couldn't normalize sense\n"); - continue; - } - if ((shdr.sense_key == 6 && shdr.asc == 0x29) || - (shdr.sense_key == 2 && shdr.asc == 4 && - shdr.ascq == 1)) { - SAS_DPRINTK("device %016llx LUN: %016llx " - "powering up or not ready yet, " - "sleeping...\n", - SAS_ADDR(task->dev->sas_addr), - SAS_ADDR(task->ssp_task.LUN)); - - schedule_timeout_interruptible(5*HZ); - } else if (shdr.sense_key == 1) { - res = 0; - break; - } else if (shdr.sense_key == 5) { - break; - } else { - SAS_DPRINTK("dev %016llx LUN: %016llx " - "sense key:0x%x ASC:0x%x ASCQ:0x%x" - "\n", - SAS_ADDR(task->dev->sas_addr), - SAS_ADDR(task->ssp_task.LUN), - shdr.sense_key, - shdr.asc, shdr.ascq); - } - } else if (task->task_status.resp != SAS_TASK_COMPLETE || - task->task_status.stat != SAM_STAT_GOOD) { - SAS_DPRINTK("task finished with resp:0x%x, " - "stat:0x%x\n", - task->task_status.resp, - task->task_status.stat); - goto ex_err; - } else { - res = 0; - break; - } - } -ex_err: - if (dma_dir != DMA_NONE) { - if (sas_protocol_ata(task->task_proto)) - dma_unmap_sg(task->dev->port->ha->dev, - task->scatter, task->num_scatter, - task->data_dir); - kfree(scatter); - } -out: - return res; -} - -/* ---------- SATA ---------- */ - static void sas_get_ata_command_set(struct domain_device *dev) { struct dev_to_host_fis *fis = @@ -642,122 +497,6 @@ static void sas_get_ata_command_set(struct domain_device *dev) dev->sata_dev.command_set = ATAPI_COMMAND_SET; } -/** - * sas_issue_ata_cmd -- Basic SATA command processing for discovery - * @dev: the device to send the command to - * @command: the command register - * @features: the features register - * @buffer: pointer to buffer to do I/O - * @size: size of @buffer - * @dma_dir: DMA direction. DMA_xxx - */ -static int sas_issue_ata_cmd(struct domain_device *dev, u8 command, - u8 features, void *buffer, int size, - enum dma_data_direction dma_dir) -{ - int res = 0; - struct sas_task *task; - struct dev_to_host_fis *d2h_fis = (struct dev_to_host_fis *) - &dev->frame_rcvd[0]; - - res = -ENOMEM; - task = sas_alloc_task(GFP_KERNEL); - if (!task) - goto out; - - task->dev = dev; - - task->ata_task.fis.fis_type = 0x27; - task->ata_task.fis.command = command; - task->ata_task.fis.features = features; - task->ata_task.fis.device = d2h_fis->device; - task->ata_task.retry_count = 1; - - res = sas_execute_task(task, buffer, size, dma_dir); - - sas_free_task(task); -out: - return res; -} - -#define ATA_IDENTIFY_DEV 0xEC -#define ATA_IDENTIFY_PACKET_DEV 0xA1 -#define ATA_SET_FEATURES 0xEF -#define ATA_FEATURE_PUP_STBY_SPIN_UP 0x07 - -/** - * sas_discover_sata_dev -- discover a STP/SATA device (SATA_DEV) - * @dev: STP/SATA device of interest (ATA/ATAPI) - * - * The LLDD has already been notified of this device, so that we can - * send FISes to it. Here we try to get IDENTIFY DEVICE or IDENTIFY - * PACKET DEVICE, if ATAPI device, so that the LLDD can fine-tune its - * performance for this device. - */ -static int sas_discover_sata_dev(struct domain_device *dev) -{ - int res; - __le16 *identify_x; - u8 command; - - identify_x = kzalloc(512, GFP_KERNEL); - if (!identify_x) - return -ENOMEM; - - if (dev->sata_dev.command_set == ATA_COMMAND_SET) { - dev->sata_dev.identify_device = identify_x; - command = ATA_IDENTIFY_DEV; - } else { - dev->sata_dev.identify_packet_device = identify_x; - command = ATA_IDENTIFY_PACKET_DEV; - } - - res = sas_issue_ata_cmd(dev, command, 0, identify_x, 512, - DMA_FROM_DEVICE); - if (res) - goto out_err; - - /* lives on the media? */ - if (le16_to_cpu(identify_x[0]) & 4) { - /* incomplete response */ - SAS_DPRINTK("sending SET FEATURE/PUP_STBY_SPIN_UP to " - "dev %llx\n", SAS_ADDR(dev->sas_addr)); - if (!(identify_x[83] & cpu_to_le16(1<<6))) - goto cont1; - res = sas_issue_ata_cmd(dev, ATA_SET_FEATURES, - ATA_FEATURE_PUP_STBY_SPIN_UP, - NULL, 0, DMA_NONE); - if (res) - goto cont1; - - schedule_timeout_interruptible(5*HZ); /* More time? */ - res = sas_issue_ata_cmd(dev, command, 0, identify_x, 512, - DMA_FROM_DEVICE); - if (res) - goto out_err; - } -cont1: - /* XXX Hint: register this SATA device with SATL. - When this returns, dev->sata_dev->lu is alive and - present. - sas_satl_register_dev(dev); - */ - - sas_fill_in_rphy(dev, dev->rphy); - - return 0; -out_err: - dev->sata_dev.identify_packet_device = NULL; - dev->sata_dev.identify_device = NULL; - kfree(identify_x); - return res; -} - -static int sas_discover_sata_pm(struct domain_device *dev) -{ - return -ENODEV; -} - void sas_probe_sata(struct work_struct *work) { struct domain_device *dev, *n; @@ -791,49 +530,26 @@ void sas_probe_sata(struct work_struct *work) * sas_discover_sata -- discover an STP/SATA domain device * @dev: pointer to struct domain_device of interest * - * First we notify the LLDD of this device, so we can send frames to - * it. Then depending on the type of device we call the appropriate - * discover functions. Once device discover is done, we notify the - * LLDD so that it can fine-tune its parameters for the device, by - * removing it and then adding it. That is, the second time around, - * the driver would have certain fields, that it is looking at, set. - * Finally we initialize the kobj so that the device can be added to - * the system at registration time. Devices directly attached to a HA - * port, have no parents. All other devices do, and should have their - * "parent" pointer set appropriately before calling this function. + * Devices directly attached to a HA port, have no parents. All other + * devices do, and should have their "parent" pointer set appropriately + * before calling this function. */ int sas_discover_sata(struct domain_device *dev) { int res; - sas_get_ata_command_set(dev); - - res = sas_notify_lldd_dev_found(dev); - if (res) - return res; - - switch (dev->dev_type) { - case SATA_DEV: - res = sas_discover_sata_dev(dev); - break; - case SATA_PM: - res = sas_discover_sata_pm(dev); - break; - default: - break; - } - sas_notify_lldd_dev_gone(dev); + if (dev->dev_type == SATA_PM) + return -ENODEV; - if (res) - return res; + sas_get_ata_command_set(dev); + sas_fill_in_rphy(dev, dev->rphy); res = sas_notify_lldd_dev_found(dev); if (res) return res; sas_discover_event(dev->port, DISCE_PROBE); - - return res; + return 0; } void sas_ata_strategy_handler(struct Scsi_Host *shost) diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c index 7e8fdcb202b..bad5eba4a92 100644 --- a/drivers/scsi/libsas/sas_discover.c +++ b/drivers/scsi/libsas/sas_discover.c @@ -237,11 +237,6 @@ void sas_free_device(struct kref *kref) if (dev->dev_type == EDGE_DEV || dev->dev_type == FANOUT_DEV) kfree(dev->ex_dev.ex_phy); - if (dev_is_sata(dev)) { - kfree(dev->sata_dev.identify_device); - kfree(dev->sata_dev.identify_packet_device); - } - kfree(dev); } diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index bd6e89ece2a..9c13a5c0bb3 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -164,9 +164,6 @@ enum ata_command_set { struct sata_device { enum ata_command_set command_set; struct smp_resp rps_resp; /* report_phy_sata_resp */ - __le16 *identify_device; - __le16 *identify_packet_device; - u8 port_no; /* port number, if this is a PM (Port) */ struct list_head children; /* PM Ports if this is a PM */ @@ -609,6 +606,7 @@ struct sas_domain_function_template { int (*lldd_clear_task_set)(struct domain_device *, u8 *lun); int (*lldd_I_T_nexus_reset)(struct domain_device *); int (*lldd_ata_soft_reset)(struct domain_device *); + void (*lldd_ata_set_dmamode)(struct domain_device *); int (*lldd_lu_reset)(struct domain_device *, u8 *lun); int (*lldd_query_task)(struct sas_task *); |