diff options
Diffstat (limited to 'drivers/ata/libata-scsi.c')
| -rw-r--r-- | drivers/ata/libata-scsi.c | 85 |
1 files changed, 71 insertions, 14 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index e9364434182..9afba2ba489 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -104,7 +104,7 @@ static const u8 def_control_mpage[CONTROL_MPAGE_LEN] = { * libata transport template. libata doesn't do real transport stuff. * It just needs the eh_timed_out hook. */ -struct scsi_transport_template ata_scsi_transport_template = { +static struct scsi_transport_template ata_scsi_transport_template = { .eh_strategy_handler = ata_scsi_error, .eh_timed_out = ata_scsi_timed_out, .user_scan = ata_scsi_user_scan, @@ -2678,6 +2678,18 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc) tf->device = qc->dev->devno ? tf->device | ATA_DEV1 : tf->device & ~ATA_DEV1; + /* READ/WRITE LONG use a non-standard sect_size */ + qc->sect_size = ATA_SECT_SIZE; + switch (tf->command) { + case ATA_CMD_READ_LONG: + case ATA_CMD_READ_LONG_ONCE: + case ATA_CMD_WRITE_LONG: + case ATA_CMD_WRITE_LONG_ONCE: + if (tf->protocol != ATA_PROT_PIO || tf->nsect != 1) + goto invalid_fld; + qc->sect_size = scmd->request_bufflen; + } + /* * Filter SET_FEATURES - XFER MODE command -- otherwise, * SET_FEATURES - XFER MODE must be preceded/succeeded @@ -2792,8 +2804,9 @@ static inline int __ata_scsi_queuecmd(struct scsi_cmnd *scmd, { int rc = 0; - if (unlikely(!scmd->cmd_len)) { - ata_dev_printk(dev, KERN_WARNING, "WARNING: zero len CDB\n"); + if (unlikely(!scmd->cmd_len || scmd->cmd_len > dev->cdb_len)) { + DPRINTK("bad CDB len=%u, max=%u\n", + scmd->cmd_len, dev->cdb_len); scmd->result = DID_ERROR << 16; done(scmd); return 0; @@ -2948,6 +2961,48 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd, } } +int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht) +{ + int i, rc; + + for (i = 0; i < host->n_ports; i++) { + struct ata_port *ap = host->ports[i]; + struct Scsi_Host *shost; + + rc = -ENOMEM; + shost = scsi_host_alloc(sht, sizeof(struct ata_port *)); + if (!shost) + goto err_alloc; + + *(struct ata_port **)&shost->hostdata[0] = ap; + ap->scsi_host = shost; + + shost->transportt = &ata_scsi_transport_template; + shost->unique_id = ap->print_id; + shost->max_id = 16; + shost->max_lun = 1; + shost->max_channel = 1; + shost->max_cmd_len = 16; + + rc = scsi_add_host(ap->scsi_host, ap->host->dev); + if (rc) + goto err_add; + } + + return 0; + + err_add: + scsi_host_put(host->ports[i]->scsi_host); + err_alloc: + while (--i >= 0) { + struct Scsi_Host *shost = host->ports[i]->scsi_host; + + scsi_remove_host(shost); + scsi_host_put(shost); + } + return rc; +} + void ata_scsi_scan_host(struct ata_port *ap) { unsigned int i; @@ -3224,21 +3279,21 @@ struct ata_port *ata_sas_port_alloc(struct ata_host *host, struct ata_port_info *port_info, struct Scsi_Host *shost) { - struct ata_port *ap = kzalloc(sizeof(*ap), GFP_KERNEL); - struct ata_probe_ent *ent; + struct ata_port *ap; + ap = ata_port_alloc(host); if (!ap) return NULL; - ent = ata_probe_ent_alloc(host->dev, port_info); - if (!ent) { - kfree(ap); - return NULL; - } - - ata_port_init(ap, host, ent, 0); + ap->port_no = 0; ap->lock = shost->host_lock; - devm_kfree(host->dev, ent); + ap->pio_mask = port_info->pio_mask; + ap->mwdma_mask = port_info->mwdma_mask; + ap->udma_mask = port_info->udma_mask; + ap->flags |= port_info->flags; + ap->ops = port_info->port_ops; + ap->cbl = ATA_CBL_SATA; + return ap; } EXPORT_SYMBOL_GPL(ata_sas_port_alloc); @@ -3294,8 +3349,10 @@ int ata_sas_port_init(struct ata_port *ap) { int rc = ap->ops->port_start(ap); - if (!rc) + if (!rc) { + ap->print_id = ata_print_id++; rc = ata_bus_probe(ap); + } return rc; } |