/**
* zfcp_scsi_adapter_register - Register SCSI and FC host with SCSI midlayer
* @adapter: The zfcp adapter to register with the SCSI midlayer
*/
int zfcp_scsi_adapter_register(struct zfcp_adapter *adapter)
{
struct ccw_dev_id dev_id;
if (adapter->scsi_host)
return 0;
ccw_device_get_id(adapter->ccw_device, &dev_id);
/* register adapter as SCSI host with mid layer of SCSI stack */
adapter->scsi_host = scsi_host_alloc(&zfcp_scsi_host_template,
sizeof (struct zfcp_adapter *));
if (!adapter->scsi_host) {
dev_err(&adapter->ccw_device->dev,
"Registering the FCP device with the "
"SCSI stack failed\n");
return -EIO;
}
/* tell the SCSI stack some characteristics of this adapter */
adapter->scsi_host->max_id = 511;
adapter->scsi_host->max_lun = 0xFFFFFFFF;
adapter->scsi_host->max_channel = 0;
adapter->scsi_host->unique_id = dev_id.devno;
adapter->scsi_host->max_cmd_len = 16; /* in struct fcp_cmnd */
adapter->scsi_host->transportt = zfcp_scsi_transport_template;
adapter->scsi_host->hostdata[0] = (unsigned long) adapter;
if (scsi_add_host(adapter->scsi_host, &adapter->ccw_device->dev)) {
scsi_host_put(adapter->scsi_host);
return -EIO;
}
return 0;
}
static int __devinit a2091_probe(struct zorro_dev *z,
const struct zorro_device_id *ent)
{
struct Scsi_Host *instance;
int error;
struct a2091_scsiregs *regs;
wd33c93_regs wdregs;
struct a2091_hostdata *hdata;
if (!request_mem_region(z->resource.start, 256, "wd33c93"))
return -EBUSY;
instance = scsi_host_alloc(&a2091_scsi_template,
sizeof(struct a2091_hostdata));
if (!instance) {
error = -ENOMEM;
goto fail_alloc;
}
instance->irq = IRQ_AMIGA_PORTS;
instance->unique_id = z->slotaddr;
regs = (struct a2091_scsiregs *)ZTWO_VADDR(z->resource.start);
regs->DAWR = DAWR_A2091;
wdregs.SASR = ®s->SASR;
wdregs.SCMD = ®s->SCMD;
hdata = shost_priv(instance);
hdata->wh.no_sync = 0xff;
hdata->wh.fast = 0;
hdata->wh.dma_mode = CTRL_DMA;
hdata->regs = regs;
wd33c93_init(instance, wdregs, dma_setup, dma_stop, WD33C93_FS_8_10);
error = request_irq(IRQ_AMIGA_PORTS, a2091_intr, IRQF_SHARED,
"A2091 SCSI", instance);
if (error)
goto fail_irq;
regs->CNTR = CNTR_PDMD | CNTR_INTEN;
error = scsi_add_host(instance, NULL);
if (error)
goto fail_host;
zorro_set_drvdata(z, instance);
scsi_scan_host(instance);
return 0;
fail_host:
free_irq(IRQ_AMIGA_PORTS, instance);
fail_irq:
scsi_host_put(instance);
fail_alloc:
release_mem_region(z->resource.start, 256);
return error;
}
static int __init mvme147_init(void)
{
wd33c93_regs regs;
struct WD33C93_hostdata *hdata;
int error = -ENOMEM;
if (!MACH_IS_MVME147)
return 0;
mvme147_shost = scsi_host_alloc(&mvme147_host_template,
sizeof(struct WD33C93_hostdata));
if (!mvme147_shost)
goto err_out;
mvme147_shost->base = 0xfffe4000;
mvme147_shost->irq = MVME147_IRQ_SCSI_PORT;
regs.SASR = (volatile unsigned char *)0xfffe4000;
regs.SCMD = (volatile unsigned char *)0xfffe4001;
hdata = shost_priv(mvme147_shost);
hdata->no_sync = 0xff;
hdata->fast = 0;
hdata->dma_mode = CTRL_DMA;
wd33c93_init(mvme147_shost, regs, dma_setup, dma_stop, WD33C93_FS_8_10);
error = request_irq(MVME147_IRQ_SCSI_PORT, mvme147_intr, 0,
"MVME147 SCSI PORT", mvme147_shost);
if (error)
goto err_unregister;
error = request_irq(MVME147_IRQ_SCSI_DMA, mvme147_intr, 0,
"MVME147 SCSI DMA", mvme147_shost);
if (error)
goto err_free_irq;
#if 0 /* Disabled; causes problems booting */
m147_pcc->scsi_interrupt = 0x10; /* Assert SCSI bus reset */
udelay(100);
m147_pcc->scsi_interrupt = 0x00; /* Negate SCSI bus reset */
udelay(2000);
m147_pcc->scsi_interrupt = 0x40; /* Clear bus reset interrupt */
#endif
m147_pcc->scsi_interrupt = 0x09; /* Enable interrupt */
m147_pcc->dma_cntrl = 0x00; /* ensure DMA is stopped */
m147_pcc->dma_intr = 0x89; /* Ack and enable ints */
error = scsi_add_host(mvme147_shost, NULL);
if (error)
goto err_free_irq;
scsi_scan_host(mvme147_shost);
return 0;
err_free_irq:
free_irq(MVME147_IRQ_SCSI_PORT, mvme147_shost);
err_unregister:
scsi_host_put(mvme147_shost);
err_out:
return error;
}
static int dmx3191d_probe_one(struct pci_dev *pdev,
const struct pci_device_id *id)
{
struct Scsi_Host *shost;
struct NCR5380_hostdata *hostdata;
unsigned long io;
int error = -ENODEV;
if (pci_enable_device(pdev))
goto out;
io = pci_resource_start(pdev, 0);
if (!request_region(io, DMX3191D_REGION_LEN, DMX3191D_DRIVER_NAME)) {
printk(KERN_ERR "dmx3191: region 0x%lx-0x%lx already reserved\n",
io, io + DMX3191D_REGION_LEN);
goto out_disable_device;
}
shost = scsi_host_alloc(&dmx3191d_driver_template,
sizeof(struct NCR5380_hostdata));
if (!shost)
goto out_release_region;
hostdata = shost_priv(shost);
hostdata->base = io;
/* This card does not seem to raise an interrupt on pdev->irq.
* Steam-powered SCSI controllers run without an IRQ anyway.
*/
shost->irq = NO_IRQ;
error = NCR5380_init(shost, 0);
if (error)
goto out_host_put;
NCR5380_maybe_reset_bus(shost);
pci_set_drvdata(pdev, shost);
error = scsi_add_host(shost, &pdev->dev);
if (error)
goto out_exit;
scsi_scan_host(shost);
return 0;
out_exit:
NCR5380_exit(shost);
out_host_put:
scsi_host_put(shost);
out_release_region:
release_region(io, DMX3191D_REGION_LEN);
out_disable_device:
pci_disable_device(pdev);
out:
return error;
}
static int __devinit
cumanascsi1_probe(struct expansion_card *ec, const struct ecard_id *id)
{
struct Scsi_Host *host;
int ret = -ENOMEM;
host = scsi_host_alloc(&cumanascsi_template, sizeof(struct NCR5380_hostdata));
if (!host)
goto out;
host->io_port = ecard_address(ec, ECARD_IOC, ECARD_SLOW) + 0x800;
host->irq = ec->irq;
NCR5380_init(host, 0);
host->n_io_port = 255;
if (!(request_region(host->io_port, host->n_io_port, "CumanaSCSI-1"))) {
ret = -EBUSY;
goto out_free;
}
((struct NCR5380_hostdata *)host->hostdata)->ctrl = 0;
outb(0x00, host->io_port - 577);
ret = request_irq(host->irq, cumanascsi_intr, SA_INTERRUPT,
"CumanaSCSI-1", host);
if (ret) {
printk("scsi%d: IRQ%d not free: %d\n",
host->host_no, host->irq, ret);
goto out_release;
}
printk("scsi%d: at port 0x%08lx irq %d",
host->host_no, host->io_port, host->irq);
printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d",
host->can_queue, host->cmd_per_lun, CUMANASCSI_PUBLIC_RELEASE);
printk("\nscsi%d:", host->host_no);
NCR5380_print_options(host);
printk("\n");
ret = scsi_add_host(host, &ec->dev);
if (ret)
goto out_free_irq;
scsi_scan_host(host);
goto out;
out_free_irq:
free_irq(host->irq, host);
out_release:
release_region(host->io_port, host->n_io_port);
out_free:
scsi_host_put(host);
out:
return ret;
}
static struct Scsi_Host *qlogic_detect(struct scsi_host_template *host,
struct pcmcia_device *link, int qbase, int qlirq)
{
int qltyp; /* type of chip */
int qinitid;
struct Scsi_Host *shost; /* registered host structure */
struct qlogicfas408_priv *priv;
qltyp = qlogicfas408_get_chip_type(qbase, INT_TYPE);
qinitid = host->this_id;
if (qinitid < 0)
qinitid = 7; /* if no ID, use 7 */
qlogicfas408_setup(qbase, qinitid, INT_TYPE);
host->name = qlogic_name;
shost = scsi_host_alloc(host, sizeof(struct qlogicfas408_priv));
if (!shost)
goto err;
shost->io_port = qbase;
shost->n_io_port = 16;
shost->dma_channel = -1;
if (qlirq != -1)
shost->irq = qlirq;
priv = get_priv_by_host(shost);
priv->qlirq = qlirq;
priv->qbase = qbase;
priv->qinitid = qinitid;
priv->shost = shost;
priv->int_type = INT_TYPE;
if (request_irq(qlirq, qlogicfas408_ihandl, 0, qlogic_name, shost))
goto free_scsi_host;
sprintf(priv->qinfo,
"Qlogicfas Driver version 0.46, chip %02X at %03X, IRQ %d, TPdma:%d",
qltyp, qbase, qlirq, QL_TURBO_PDMA);
if (scsi_add_host(shost, NULL))
goto free_interrupt;
scsi_scan_host(shost);
return shost;
free_interrupt:
free_irq(qlirq, shost);
free_scsi_host:
scsi_host_put(shost);
err:
return NULL;
}
static int __devinit dmx3191d_probe_one(struct pci_dev *pdev,
const struct pci_device_id *id)
{
struct Scsi_Host *shost;
unsigned long io;
int error = -ENODEV;
if (pci_enable_device(pdev))
goto out;
io = pci_resource_start(pdev, 0);
if (!request_region(io, DMX3191D_REGION_LEN, DMX3191D_DRIVER_NAME)) {
printk(KERN_ERR "dmx3191: region 0x%lx-0x%lx already reserved\n",
io, io + DMX3191D_REGION_LEN);
goto out_disable_device;
}
shost = scsi_host_alloc(&dmx3191d_driver_template,
sizeof(struct NCR5380_hostdata));
if (!shost)
goto out_release_region;
shost->io_port = io;
shost->irq = pdev->irq;
NCR5380_init(shost, FLAG_NO_PSEUDO_DMA | FLAG_DTC3181E);
if (request_irq(pdev->irq, NCR5380_intr, IRQF_SHARED,
DMX3191D_DRIVER_NAME, shost)) {
/*
* Steam powered scsi controllers run without an IRQ anyway
*/
printk(KERN_WARNING "dmx3191: IRQ %d not available - "
"switching to polled mode.\n", pdev->irq);
shost->irq = SCSI_IRQ_NONE;
}
pci_set_drvdata(pdev, shost);
error = scsi_add_host(shost, &pdev->dev);
if (error)
goto out_free_irq;
scsi_scan_host(shost);
return 0;
out_free_irq:
free_irq(shost->irq, shost);
out_release_region:
release_region(io, DMX3191D_REGION_LEN);
out_disable_device:
pci_disable_device(pdev);
out:
return error;
}
static int
cciss_scsi_detect(ctlr_info_t *h)
{
struct Scsi_Host *sh;
int error;
sh = scsi_host_alloc(&cciss_driver_template, sizeof(struct ctlr_info *));
if (sh == NULL)
goto fail;
sh->io_port = 0; // good enough? FIXME,
sh->n_io_port = 0; // I do
static int __devinit
oakscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
{
struct Scsi_Host *host;
int ret = -ENOMEM;
ret = ecard_request_resources(ec);
if (ret)
goto out;
host = scsi_host_alloc(&oakscsi_template, sizeof(struct NCR5380_hostdata));
if (!host) {
ret = -ENOMEM;
goto release;
}
priv(host)->base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
ecard_resource_len(ec, ECARD_RES_MEMC));
if (!priv(host)->base) {
ret = -ENOMEM;
goto unreg;
}
host->irq = IRQ_NONE;
host->n_io_port = 255;
NCR5380_init(host, 0);
printk("scsi%d: at port 0x%08lx irqs disabled",
host->host_no, host->io_port);
printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d",
host->can_queue, host->cmd_per_lun, OAKSCSI_PUBLIC_RELEASE);
printk("\nscsi%d:", host->host_no);
NCR5380_print_options(host);
printk("\n");
ret = scsi_add_host(host, &ec->dev);
if (ret)
goto out_unmap;
scsi_scan_host(host);
goto out;
out_unmap:
iounmap(priv(host)->base);
unreg:
scsi_host_put(host);
release:
ecard_release_resources(ec);
out:
return ret;
}
static int oakscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
{
struct Scsi_Host *host;
int ret = -ENOMEM;
ret = ecard_request_resources(ec);
if (ret)
goto out;
host = scsi_host_alloc(&oakscsi_template, sizeof(struct NCR5380_hostdata));
if (!host) {
ret = -ENOMEM;
goto release;
}
priv(host)->base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
ecard_resource_len(ec, ECARD_RES_MEMC));
if (!priv(host)->base) {
ret = -ENOMEM;
goto unreg;
}
host->irq = NO_IRQ;
host->n_io_port = 255;
ret = NCR5380_init(host, 0);
if (ret)
goto out_unmap;
NCR5380_maybe_reset_bus(host);
ret = scsi_add_host(host, &ec->dev);
if (ret)
goto out_exit;
scsi_scan_host(host);
goto out;
out_exit:
NCR5380_exit(host);
out_unmap:
iounmap(priv(host)->base);
unreg:
scsi_host_put(host);
release:
ecard_release_resources(ec);
out:
return ret;
}
/**
* megaraid_io_attach - attach a device with the IO subsystem
* @adapter : controller's soft state
*
* Attach this device with the IO subsystem.
*/
static int
megaraid_io_attach(adapter_t *adapter)
{
struct Scsi_Host *host;
// Initialize SCSI Host structure
host = scsi_host_alloc(&megaraid_template_g, 8);
if (!host) {
con_log(CL_ANN, (KERN_WARNING
"megaraid mbox: scsi_register failed\n"));
return -1;
}
SCSIHOST2ADAP(host) = (caddr_t)adapter;
adapter->host = host;
host->irq = adapter->irq;
host->unique_id = adapter->unique_id;
host->can_queue = adapter->max_cmds;
host->this_id = adapter->init_id;
host->sg_tablesize = adapter->sglen;
host->max_sectors = adapter->max_sectors;
host->cmd_per_lun = adapter->cmd_per_lun;
host->max_channel = adapter->max_channel;
host->max_id = adapter->max_target;
host->max_lun = adapter->max_lun;
// notify mid-layer about the new controller
if (scsi_add_host(host, &adapter->pdev->dev)) {
con_log(CL_ANN, (KERN_WARNING
"megaraid mbox: scsi_add_host failed\n"));
scsi_host_put(host);
return -1;
}
scsi_scan_host(host);
return 0;
}
static int tcm_loop_driver_probe(struct device *dev)
{
struct tcm_loop_hba *tl_hba;
struct Scsi_Host *sh;
int error, host_prot;
tl_hba = to_tcm_loop_hba(dev);
sh = scsi_host_alloc(&tcm_loop_driver_template,
sizeof(struct tcm_loop_hba));
if (!sh) {
pr_err("Unable to allocate struct scsi_host\n");
return -ENODEV;
}
tl_hba->sh = sh;
/*
* Assign the struct tcm_loop_hba pointer to struct Scsi_Host->hostdata
*/
*((struct tcm_loop_hba **)sh->hostdata) = tl_hba;
/*
* Setup single ID, Channel and LUN for now..
*/
sh->max_id = 2;
sh->max_lun = 0;
sh->max_channel = 0;
sh->max_cmd_len = TL_SCSI_MAX_CMD_LEN;
host_prot = SHOST_DIF_TYPE1_PROTECTION | SHOST_DIF_TYPE2_PROTECTION |
SHOST_DIF_TYPE3_PROTECTION | SHOST_DIX_TYPE1_PROTECTION |
SHOST_DIX_TYPE2_PROTECTION | SHOST_DIX_TYPE3_PROTECTION;
scsi_host_set_prot(sh, host_prot);
scsi_host_set_guard(sh, SHOST_DIX_GUARD_CRC);
error = scsi_add_host(sh, &tl_hba->dev);
if (error) {
pr_err("%s: scsi_add_host failed\n", __func__);
scsi_host_put(sh);
return -ENODEV;
}
return 0;
}
static int __devinit
oakscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
{
struct Scsi_Host *host;
int ret = -ENOMEM;
host = scsi_host_alloc(&oakscsi_template, sizeof(struct NCR5380_hostdata));
if (!host)
goto out;
host->io_port = ecard_address(ec, ECARD_MEMC, 0);
host->irq = IRQ_NONE;
host->n_io_port = 255;
ret = -EBUSY;
if (!request_region (host->io_port, host->n_io_port, "Oak SCSI"))
goto unreg;
NCR5380_init(host, 0);
printk("scsi%d: at port 0x%08lx irqs disabled",
host->host_no, host->io_port);
printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d",
host->can_queue, host->cmd_per_lun, OAKSCSI_PUBLIC_RELEASE);
printk("\nscsi%d:", host->host_no);
NCR5380_print_options(host);
printk("\n");
ret = scsi_add_host(host, &ec->dev);
if (ret)
goto out_release;
scsi_scan_host(host);
goto out;
out_release:
release_region(host->io_port, host->n_io_port);
unreg:
scsi_host_put(host);
out:
return ret;
}
static int tcm_loop_driver_probe(struct device *dev)
{
struct tcm_loop_hba *tl_hba;
struct Scsi_Host *sh;
int error;
tl_hba = to_tcm_loop_hba(dev);
sh = scsi_host_alloc(&tcm_loop_driver_template,
sizeof(struct tcm_loop_hba));
if (!sh) {
printk(KERN_ERR "Unable to allocate struct scsi_host\n");
return -ENODEV;
}
tl_hba->sh = sh;
/*
* Assign the struct tcm_loop_hba pointer to struct Scsi_Host->hostdata
*/
*((struct tcm_loop_hba **)sh->hostdata) = tl_hba;
/*
* Setup single ID, Channel and LUN for now..
*/
sh->max_id = 2;
sh->max_lun = 0;
sh->max_channel = 0;
sh->max_cmd_len = TL_SCSI_MAX_CMD_LEN;
error = scsi_add_host(sh, &tl_hba->dev);
if (error) {
printk(KERN_ERR "%s: scsi_add_host failed\n", __func__);
scsi_host_put(sh);
return -ENODEV;
}
return 0;
}
static int __devinit esp_sun3x_probe(struct platform_device *dev)
{
struct scsi_host_template *tpnt = &scsi_esp_template;
struct Scsi_Host *host;
struct esp *esp;
struct resource *res;
int err = -ENOMEM;
host = scsi_host_alloc(tpnt, sizeof(struct esp));
if (!host)
goto fail;
host->max_id = 8;
esp = shost_priv(host);
esp->host = host;
esp->dev = dev;
esp->ops = &sun3x_esp_ops;
res = platform_get_resource(dev, IORESOURCE_MEM, 0);
if (!res && !res->start)
goto fail_unlink;
esp->regs = ioremap_nocache(res->start, 0x20);
if (!esp->regs)
goto fail_unmap_regs;
res = platform_get_resource(dev, IORESOURCE_MEM, 1);
if (!res && !res->start)
goto fail_unmap_regs;
esp->dma_regs = ioremap_nocache(res->start, 0x10);
esp->command_block = dma_alloc_coherent(esp->dev, 16,
&esp->command_block_dma,
GFP_KERNEL);
if (!esp->command_block)
goto fail_unmap_regs_dma;
host->irq = platform_get_irq(dev, 0);
err = request_irq(host->irq, scsi_esp_intr, IRQF_SHARED,
"SUN3X ESP", esp);
if (err < 0)
goto fail_unmap_command_block;
esp->scsi_id = 7;
esp->host->this_id = esp->scsi_id;
esp->scsi_id_mask = (1 << esp->scsi_id);
esp->cfreq = 20000000;
dev_set_drvdata(&dev->dev, esp);
err = scsi_esp_register(esp, &dev->dev);
if (err)
goto fail_free_irq;
return 0;
fail_free_irq:
free_irq(host->irq, esp);
fail_unmap_command_block:
dma_free_coherent(esp->dev, 16,
esp->command_block,
esp->command_block_dma);
fail_unmap_regs_dma:
iounmap(esp->dma_regs);
fail_unmap_regs:
iounmap(esp->regs);
fail_unlink:
scsi_host_put(host);
fail:
return err;
}
static int rtsx_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
struct Scsi_Host *host;
struct rtsx_dev *dev;
int err = 0;
struct task_struct *th;
dev_dbg(&pci->dev, "Realtek PCI-E card reader detected\n");
err = pcim_enable_device(pci);
if (err < 0) {
dev_err(&pci->dev, "PCI enable device failed!\n");
return err;
}
err = pci_request_regions(pci, CR_DRIVER_NAME);
if (err < 0) {
dev_err(&pci->dev, "PCI request regions for %s failed!\n",
CR_DRIVER_NAME);
return err;
}
/*
* Ask the SCSI layer to allocate a host structure, with extra
* space at the end for our private rtsx_dev structure.
*/
host = scsi_host_alloc(&rtsx_host_template, sizeof(*dev));
if (!host) {
dev_err(&pci->dev, "Unable to allocate the scsi host\n");
return -ENOMEM;
}
dev = host_to_rtsx(host);
memset(dev, 0, sizeof(struct rtsx_dev));
dev->chip = kzalloc(sizeof(struct rtsx_chip), GFP_KERNEL);
if (!dev->chip) {
err = -ENOMEM;
goto errout;
}
spin_lock_init(&dev->reg_lock);
mutex_init(&(dev->dev_mutex));
init_completion(&dev->cmnd_ready);
init_completion(&dev->control_exit);
init_completion(&dev->polling_exit);
init_completion(&(dev->notify));
init_completion(&dev->scanning_done);
init_waitqueue_head(&dev->delay_wait);
dev->pci = pci;
dev->irq = -1;
dev_info(&pci->dev, "Resource length: 0x%x\n",
(unsigned int)pci_resource_len(pci, 0));
dev->addr = pci_resource_start(pci, 0);
dev->remap_addr = ioremap_nocache(dev->addr, pci_resource_len(pci, 0));
if (!dev->remap_addr) {
dev_err(&pci->dev, "ioremap error\n");
err = -ENXIO;
goto errout;
}
/*
* Using "unsigned long" cast here to eliminate gcc warning in
* 64-bit system
*/
dev_info(&pci->dev, "Original address: 0x%lx, remapped address: 0x%lx\n",
(unsigned long)(dev->addr), (unsigned long)(dev->remap_addr));
dev->rtsx_resv_buf = dmam_alloc_coherent(&pci->dev, RTSX_RESV_BUF_LEN,
&dev->rtsx_resv_buf_addr, GFP_KERNEL);
if (!dev->rtsx_resv_buf) {
dev_err(&pci->dev, "alloc dma buffer fail\n");
err = -ENXIO;
goto errout;
}
dev->chip->host_cmds_ptr = dev->rtsx_resv_buf;
dev->chip->host_cmds_addr = dev->rtsx_resv_buf_addr;
dev->chip->host_sg_tbl_ptr = dev->rtsx_resv_buf + HOST_CMDS_BUF_LEN;
dev->chip->host_sg_tbl_addr = dev->rtsx_resv_buf_addr +
HOST_CMDS_BUF_LEN;
dev->chip->rtsx = dev;
rtsx_init_options(dev->chip);
dev_info(&pci->dev, "pci->irq = %d\n", pci->irq);
if (dev->chip->msi_en) {
if (pci_enable_msi(pci) < 0)
dev->chip->msi_en = 0;
}
if (rtsx_acquire_irq(dev) < 0) {
err = -EBUSY;
goto errout;
}
pci_set_master(pci);
synchronize_irq(dev->irq);
rtsx_init_chip(dev->chip);
/*
* set the supported max_lun and max_id for the scsi host
* NOTE: the minimal value of max_id is 1
*/
host->max_id = 1;
host->max_lun = dev->chip->max_lun;
/* Start up our control thread */
th = kthread_run(rtsx_control_thread, dev, CR_DRIVER_NAME);
if (IS_ERR(th)) {
dev_err(&pci->dev, "Unable to start control thread\n");
err = PTR_ERR(th);
goto errout;
}
dev->ctl_thread = th;
err = scsi_add_host(host, &pci->dev);
if (err) {
dev_err(&pci->dev, "Unable to add the scsi host\n");
goto errout;
}
/* Start up the thread for delayed SCSI-device scanning */
th = kthread_run(rtsx_scan_thread, dev, "rtsx-scan");
if (IS_ERR(th)) {
dev_err(&pci->dev, "Unable to start the device-scanning thread\n");
complete(&dev->scanning_done);
quiesce_and_remove_host(dev);
err = PTR_ERR(th);
goto errout;
}
/* Start up the thread for polling thread */
th = kthread_run(rtsx_polling_thread, dev, "rtsx-polling");
if (IS_ERR(th)) {
dev_err(&pci->dev, "Unable to start the device-polling thread\n");
quiesce_and_remove_host(dev);
err = PTR_ERR(th);
goto errout;
}
dev->polling_thread = th;
pci_set_drvdata(pci, dev);
return 0;
/* We come here if there are any problems */
errout:
dev_err(&pci->dev, "rtsx_probe() failed\n");
release_everything(dev);
return err;
}
static int __devinit
cumanascsi1_probe(struct expansion_card *ec, const struct ecard_id *id)
{
struct Scsi_Host *host;
int ret;
ret = ecard_request_resources(ec);
if (ret)
goto out;
host = scsi_host_alloc(&cumanascsi_template, sizeof(struct NCR5380_hostdata));
if (!host) {
ret = -ENOMEM;
goto out_release;
}
priv(host)->base = ioremap(ecard_resource_start(ec, ECARD_RES_IOCSLOW),
ecard_resource_len(ec, ECARD_RES_IOCSLOW));
priv(host)->dma = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
ecard_resource_len(ec, ECARD_RES_MEMC));
if (!priv(host)->base || !priv(host)->dma) {
ret = -ENOMEM;
goto out_unmap;
}
host->irq = ec->irq;
NCR5380_init(host, 0);
priv(host)->ctrl = 0;
writeb(0, priv(host)->base + CTRL);
host->n_io_port = 255;
if (!(request_region(host->io_port, host->n_io_port, "CumanaSCSI-1"))) {
ret = -EBUSY;
goto out_unmap;
}
ret = request_irq(host->irq, cumanascsi_intr, IRQF_DISABLED,
"CumanaSCSI-1", host);
if (ret) {
printk("scsi%d: IRQ%d not free: %d\n",
host->host_no, host->irq, ret);
goto out_unmap;
}
printk("scsi%d: at port 0x%08lx irq %d",
host->host_no, host->io_port, host->irq);
printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d",
host->can_queue, host->cmd_per_lun, CUMANASCSI_PUBLIC_RELEASE);
printk("\nscsi%d:", host->host_no);
NCR5380_print_options(host);
printk("\n");
ret = scsi_add_host(host, &ec->dev);
if (ret)
goto out_free_irq;
scsi_scan_host(host);
goto out;
out_free_irq:
free_irq(host->irq, host);
out_unmap:
iounmap(priv(host)->base);
iounmap(priv(host)->dma);
scsi_host_put(host);
out_release:
ecard_release_resources(ec);
out:
return ret;
}
static int __devinit
powertecscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
{
struct Scsi_Host *host;
struct powertec_info *info;
unsigned long resbase, reslen;
void __iomem *base;
int ret;
ret = ecard_request_resources(ec);
if (ret)
goto out;
resbase = ecard_resource_start(ec, ECARD_RES_IOCFAST);
reslen = ecard_resource_len(ec, ECARD_RES_IOCFAST);
base = ioremap(resbase, reslen);
if (!base) {
ret = -ENOMEM;
goto out_region;
}
host = scsi_host_alloc(&powertecscsi_template,
sizeof (struct powertec_info));
if (!host) {
ret = -ENOMEM;
goto out_unmap;
}
ecard_set_drvdata(ec, host);
info = (struct powertec_info *)host->hostdata;
info->base = base;
powertecscsi_terminator_ctl(host, term[ec->slot_no]);
info->info.scsi.io_base = base + POWERTEC_FAS216_OFFSET;
info->info.scsi.io_shift = POWERTEC_FAS216_SHIFT;
info->info.scsi.irq = ec->irq;
info->info.scsi.dma = ec->dma;
info->info.ifcfg.clockrate = 40; /* MHz */
info->info.ifcfg.select_timeout = 255;
info->info.ifcfg.asyncperiod = 200; /* ns */
info->info.ifcfg.sync_max_depth = 7;
info->info.ifcfg.cntl3 = CNTL3_BS8 | CNTL3_FASTSCSI | CNTL3_FASTCLK;
info->info.ifcfg.disconnect_ok = 1;
info->info.ifcfg.wide_max_size = 0;
info->info.ifcfg.capabilities = 0;
info->info.dma.setup = powertecscsi_dma_setup;
info->info.dma.pseudo = NULL;
info->info.dma.stop = powertecscsi_dma_stop;
ec->irqaddr = base + POWERTEC_INTR_STATUS;
ec->irqmask = POWERTEC_INTR_BIT;
ec->irq_data = info;
ec->ops = &powertecscsi_ops;
device_create_file(&ec->dev, &dev_attr_bus_term);
ret = fas216_init(host);
if (ret)
goto out_free;
ret = request_irq(ec->irq, powertecscsi_intr,
SA_INTERRUPT, "powertec", info);
if (ret) {
printk("scsi%d: IRQ%d not free: %d\n",
host->host_no, ec->irq, ret);
goto out_release;
}
if (info->info.scsi.dma != NO_DMA) {
if (request_dma(info->info.scsi.dma, "powertec")) {
printk("scsi%d: DMA%d not free, using PIO\n",
host->host_no, info->info.scsi.dma);
info->info.scsi.dma = NO_DMA;
} else {
set_dma_speed(info->info.scsi.dma, 180);
info->info.ifcfg.capabilities |= FASCAP_DMA;
}
}
ret = fas216_add(host, &ec->dev);
if (ret == 0)
goto out;
if (info->info.scsi.dma != NO_DMA)
free_dma(info->info.scsi.dma);
free_irq(ec->irq, host);
out_release:
fas216_release(host);
out_free:
device_remove_file(&ec->dev, &dev_attr_bus_term);
scsi_host_put(host);
out_unmap:
iounmap(base);
out_region:
ecard_release_resources(ec);
out:
return ret;
}
static int mts_usb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
int i;
int ep_out = -1;
int ep_in_set[3]; /* this will break if we have more than three endpoints
which is why we check */
int *ep_in_current = ep_in_set;
int err_retval = -ENOMEM;
struct mts_desc * new_desc;
struct vendor_product const* p;
struct usb_device *dev = interface_to_usbdev (intf);
/* the current altsetting on the interface we're probing */
struct usb_host_interface *altsetting;
MTS_DEBUG_GOT_HERE();
MTS_DEBUG( "usb-device descriptor at %x\n", (int)dev );
MTS_DEBUG( "product id = 0x%x, vendor id = 0x%x\n",
le16_to_cpu(dev->descriptor.idProduct),
le16_to_cpu(dev->descriptor.idVendor) );
MTS_DEBUG_GOT_HERE();
p = &mts_supported_products[id - mts_usb_ids];
MTS_DEBUG_GOT_HERE();
MTS_DEBUG( "found model %s\n", p->name );
if ( p->support_status != mts_sup_full )
MTS_MESSAGE( "model %s is not known to be fully supported, reports welcome!\n",
p->name );
/* the current altsetting on the interface we're probing */
altsetting = intf->cur_altsetting;
/* Check if the config is sane */
if ( altsetting->desc.bNumEndpoints != MTS_EP_TOTAL ) {
MTS_WARNING( "expecting %d got %d endpoints! Bailing out.\n",
(int)MTS_EP_TOTAL, (int)altsetting->desc.bNumEndpoints );
return -ENODEV;
}
for( i = 0; i < altsetting->desc.bNumEndpoints; i++ ) {
if ((altsetting->endpoint[i].desc.bmAttributes &
USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK) {
MTS_WARNING( "can only deal with bulk endpoints; endpoint %d is not bulk.\n",
(int)altsetting->endpoint[i].desc.bEndpointAddress );
} else {
if (altsetting->endpoint[i].desc.bEndpointAddress &
USB_DIR_IN)
*ep_in_current++
= altsetting->endpoint[i].desc.bEndpointAddress &
USB_ENDPOINT_NUMBER_MASK;
else {
if ( ep_out != -1 ) {
MTS_WARNING( "can only deal with one output endpoints. Bailing out." );
return -ENODEV;
}
ep_out = altsetting->endpoint[i].desc.bEndpointAddress &
USB_ENDPOINT_NUMBER_MASK;
}
}
}
if ( ep_out == -1 ) {
MTS_WARNING( "couldn't find an output bulk endpoint. Bailing out.\n" );
return -ENODEV;
}
new_desc = kzalloc(sizeof(struct mts_desc), GFP_KERNEL);
if (!new_desc)
goto out;
new_desc->urb = usb_alloc_urb(0, GFP_KERNEL);
if (!new_desc->urb)
goto out_kfree;
new_desc->context.scsi_status = kmalloc(1, GFP_KERNEL);
if (!new_desc->context.scsi_status)
goto out_kfree2;
new_desc->usb_dev = dev;
new_desc->usb_intf = intf;
init_MUTEX(&new_desc->lock);
/* endpoints */
new_desc->ep_out = ep_out;
new_desc->ep_response = ep_in_set[0];
new_desc->ep_image = ep_in_set[1];
if ( new_desc->ep_out != MTS_EP_OUT )
MTS_WARNING( "will this work? Command EP is not usually %d\n",
(int)new_desc->ep_out );
if ( new_desc->ep_response != MTS_EP_RESPONSE )
MTS_WARNING( "will this work? Response EP is not usually %d\n",
(int)new_desc->ep_response );
if ( new_desc->ep_image != MTS_EP_IMAGE )
MTS_WARNING( "will this work? Image data EP is not usually %d\n",
(int)new_desc->ep_image );
new_desc->host = scsi_host_alloc(&mts_scsi_host_template,
sizeof(new_desc));
if (!new_desc->host)
goto out_free_urb;
new_desc->host->hostdata[0] = (unsigned long)new_desc;
if (scsi_add_host(new_desc->host, NULL)) {
err_retval = -EIO;
goto out_free_urb;
}
scsi_scan_host(new_desc->host);
usb_set_intfdata(intf, new_desc);
return 0;
out_kfree2:
kfree(new_desc->context.scsi_status);
out_free_urb:
usb_free_urb(new_desc->urb);
out_kfree:
kfree(new_desc);
out:
return err_retval;
}
static int esas2r_probe(struct pci_dev *pcid,
const struct pci_device_id *id)
{
struct Scsi_Host *host = NULL;
struct esas2r_adapter *a;
int err;
size_t host_alloc_size = sizeof(struct esas2r_adapter)
+ ((num_requests) +
1) * sizeof(struct esas2r_request);
esas2r_log_dev(ESAS2R_LOG_DEBG, &(pcid->dev),
"esas2r_probe() 0x%02x 0x%02x 0x%02x 0x%02x",
pcid->vendor,
pcid->device,
pcid->subsystem_vendor,
pcid->subsystem_device);
esas2r_log_dev(ESAS2R_LOG_INFO, &(pcid->dev),
"before pci_enable_device() "
"enable_cnt: %d",
pcid->enable_cnt.counter);
err = pci_enable_device(pcid);
if (err != 0) {
esas2r_log_dev(ESAS2R_LOG_CRIT, &(pcid->dev),
"pci_enable_device() FAIL (%d)",
err);
return -ENODEV;
}
esas2r_log_dev(ESAS2R_LOG_INFO, &(pcid->dev),
"pci_enable_device() OK");
esas2r_log_dev(ESAS2R_LOG_INFO, &(pcid->dev),
"after pci_enable_device() enable_cnt: %d",
pcid->enable_cnt.counter);
host = scsi_host_alloc(&driver_template, host_alloc_size);
if (host == NULL) {
esas2r_log(ESAS2R_LOG_CRIT, "scsi_host_alloc() FAIL");
return -ENODEV;
}
memset(host->hostdata, 0, host_alloc_size);
a = (struct esas2r_adapter *)host->hostdata;
esas2r_log(ESAS2R_LOG_INFO, "scsi_host_alloc() OK host: %p", host);
/* override max LUN and max target id */
host->max_id = ESAS2R_MAX_ID + 1;
host->max_lun = 255;
/* we can handle 16-byte CDbs */
host->max_cmd_len = 16;
host->can_queue = can_queue;
host->cmd_per_lun = cmd_per_lun;
host->this_id = host->max_id + 1;
host->max_channel = 0;
host->unique_id = found_adapters;
host->sg_tablesize = sg_tablesize;
host->max_sectors = esas2r_max_sectors;
/* set to bus master for BIOses that don't do it for us */
esas2r_log(ESAS2R_LOG_INFO, "pci_set_master() called");
pci_set_master(pcid);
if (!esas2r_init_adapter(host, pcid, found_adapters)) {
esas2r_log(ESAS2R_LOG_CRIT,
"unable to initialize device at PCI bus %x:%x",
pcid->bus->number,
pcid->devfn);
esas2r_log_dev(ESAS2R_LOG_INFO, &(host->shost_gendev),
"scsi_host_put() called");
scsi_host_put(host);
return 0;
}
esas2r_log(ESAS2R_LOG_INFO, "pci_set_drvdata(%p, %p) called", pcid,
host->hostdata);
pci_set_drvdata(pcid, host);
esas2r_log(ESAS2R_LOG_INFO, "scsi_add_host() called");
err = scsi_add_host(host, &pcid->dev);
if (err) {
esas2r_log(ESAS2R_LOG_CRIT, "scsi_add_host returned %d", err);
esas2r_log_dev(ESAS2R_LOG_CRIT, &(host->shost_gendev),
"scsi_add_host() FAIL");
esas2r_log_dev(ESAS2R_LOG_INFO, &(host->shost_gendev),
"scsi_host_put() called");
scsi_host_put(host);
esas2r_log_dev(ESAS2R_LOG_INFO, &(host->shost_gendev),
"pci_set_drvdata(%p, NULL) called",
pcid);
pci_set_drvdata(pcid, NULL);
return -ENODEV;
}
esas2r_fw_event_on(a);
esas2r_log_dev(ESAS2R_LOG_INFO, &(host->shost_gendev),
"scsi_scan_host() called");
scsi_scan_host(host);
/* Add sysfs binary files */
if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_fw))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: fw");
else
a->sysfs_fw_created = 1;
if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_fs))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: fs");
else
a->sysfs_fs_created = 1;
if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_vda))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: vda");
else
a->sysfs_vda_created = 1;
if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_hw))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: hw");
else
a->sysfs_hw_created = 1;
if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_live_nvram))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: live_nvram");
else
a->sysfs_live_nvram_created = 1;
if (sysfs_create_bin_file(&host->shost_dev.kobj,
&bin_attr_default_nvram))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: default_nvram");
else
a->sysfs_default_nvram_created = 1;
found_adapters++;
return 0;
}
static struct Scsi_Host *__qlogicfas_detect(struct scsi_host_template *host,
int qbase,
int qlirq)
{
int qltyp;
int qinitid;
struct Scsi_Host *hreg;
struct qlogicfas408_priv *priv;
if (!qbase || qlirq == -1)
goto err;
if (!request_region(qbase, 0x10, qlogicfas_name)) {
printk(KERN_INFO "%s: address %#x is busy\n", qlogicfas_name,
qbase);
goto err;
}
if (!qlogicfas408_detect(qbase, INT_TYPE)) {
printk(KERN_WARNING "%s: probe failed for %#x\n",
qlogicfas_name,
qbase);
goto err_release_mem;
}
printk(KERN_INFO "%s: Using preset base address of %03x,"
" IRQ %d\n", qlogicfas_name, qbase, qlirq);
qltyp = qlogicfas408_get_chip_type(qbase, INT_TYPE);
qinitid = host->this_id;
if (qinitid < 0)
qinitid = 7;
qlogicfas408_setup(qbase, qinitid, INT_TYPE);
hreg = scsi_host_alloc(host, sizeof(struct qlogicfas408_priv));
if (!hreg)
goto err_release_mem;
priv = get_priv_by_host(hreg);
hreg->io_port = qbase;
hreg->n_io_port = 16;
hreg->dma_channel = -1;
if (qlirq != -1)
hreg->irq = qlirq;
priv->qbase = qbase;
priv->qlirq = qlirq;
priv->qinitid = qinitid;
priv->shost = hreg;
priv->int_type = INT_TYPE;
sprintf(priv->qinfo,
"Qlogicfas Driver version 0.46, chip %02X at %03X, IRQ %d, TPdma:%d",
qltyp, qbase, qlirq, QL_TURBO_PDMA);
host->name = qlogicfas_name;
if (request_irq(qlirq, qlogicfas408_ihandl, 0, qlogicfas_name, hreg))
goto free_scsi_host;
if (scsi_add_host(hreg, NULL))
goto free_interrupt;
scsi_scan_host(hreg);
return hreg;
free_interrupt:
free_irq(qlirq, hreg);
free_scsi_host:
scsi_host_put(hreg);
err_release_mem:
release_region(qbase, 0x10);
err:
return NULL;
}
static struct Scsi_Host *__qlogicfas_detect(struct scsi_host_template *host,
int qbase,
int qlirq)
{
int qltyp; /* type of chip */
int qinitid;
struct Scsi_Host *hreg; /* registered host structure */
struct qlogicfas408_priv *priv;
/* Qlogic Cards only exist at 0x230 or 0x330 (the chip itself
* decodes the address - I check 230 first since MIDI cards are
* typically at 0x330
*
* Theoretically, two Qlogic cards can coexist in the same system.
* This should work by simply using this as a loadable module for
* the second card, but I haven't tested this.
*/
if (!qbase || qlirq == -1)
goto err;
if (!request_region(qbase, 0x10, qlogicfas_name)) {
printk(KERN_INFO "%s: address %#x is busy\n", qlogicfas_name,
qbase);
goto err;
}
if (!qlogicfas408_detect(qbase, INT_TYPE)) {
printk(KERN_WARNING "%s: probe failed for %#x\n",
qlogicfas_name,
qbase);
goto err_release_mem;
}
printk(KERN_INFO "%s: Using preset base address of %03x,"
" IRQ %d\n", qlogicfas_name, qbase, qlirq);
qltyp = qlogicfas408_get_chip_type(qbase, INT_TYPE);
qinitid = host->this_id;
if (qinitid < 0)
qinitid = 7; /* if no ID, use 7 */
qlogicfas408_setup(qbase, qinitid, INT_TYPE);
hreg = scsi_host_alloc(host, sizeof(struct qlogicfas408_priv));
if (!hreg)
goto err_release_mem;
priv = get_priv_by_host(hreg);
hreg->io_port = qbase;
hreg->n_io_port = 16;
hreg->dma_channel = -1;
if (qlirq != -1)
hreg->irq = qlirq;
priv->qbase = qbase;
priv->qlirq = qlirq;
priv->qinitid = qinitid;
priv->shost = hreg;
priv->int_type = INT_TYPE;
sprintf(priv->qinfo,
"Qlogicfas Driver version 0.46, chip %02X at %03X, IRQ %d, TPdma:%d",
qltyp, qbase, qlirq, QL_TURBO_PDMA);
host->name = qlogicfas_name;
if (request_irq(qlirq, qlogicfas408_ihandl, 0, qlogicfas_name, hreg))
goto free_scsi_host;
if (scsi_add_host(hreg, NULL))
goto free_interrupt;
scsi_scan_host(hreg);
return hreg;
free_interrupt:
free_irq(qlirq, hreg);
free_scsi_host:
scsi_host_put(hreg);
err_release_mem:
release_region(qbase, 0x10);
err:
return NULL;
}
static void zfcp_scsi_forget_cmnds(struct zfcp_scsi_dev *zsdev, u8 tm_flags)
{
struct zfcp_adapter *adapter = zsdev->port->adapter;
struct zfcp_scsi_req_filter filter = {
.tmf_scope = FCP_TMF_TGT_RESET,
.port_handle = zsdev->port->handle,
};
unsigned long flags;
if (tm_flags == FCP_TMF_LUN_RESET) {
filter.tmf_scope = FCP_TMF_LUN_RESET;
filter.lun_handle = zsdev->lun_handle;
}
/*
* abort_lock secures against other processings - in the abort-function
* and normal cmnd-handler - of (struct zfcp_fsf_req *)->data
*/
write_lock_irqsave(&adapter->abort_lock, flags);
zfcp_reqlist_apply_for_all(adapter->req_list, zfcp_scsi_forget_cmnd,
&filter);
write_unlock_irqrestore(&adapter->abort_lock, flags);
}
static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags)
{
struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scpnt->device);
struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;
struct zfcp_fsf_req *fsf_req = NULL;
int retval = SUCCESS, ret;
int retry = 3;
while (retry--) {
fsf_req = zfcp_fsf_fcp_task_mgmt(scpnt, tm_flags);
if (fsf_req)
break;
zfcp_erp_wait(adapter);
ret = fc_block_scsi_eh(scpnt);
if (ret)
return ret;
if (!(atomic_read(&adapter->status) &
ZFCP_STATUS_COMMON_RUNNING)) {
zfcp_dbf_scsi_devreset("nres", scpnt, tm_flags);
return SUCCESS;
}
}
if (!fsf_req)
return FAILED;
wait_for_completion(&fsf_req->completion);
if (fsf_req->status & ZFCP_STATUS_FSFREQ_TMFUNCFAILED) {
zfcp_dbf_scsi_devreset("fail", scpnt, tm_flags);
retval = FAILED;
} else {
zfcp_dbf_scsi_devreset("okay", scpnt, tm_flags);
zfcp_scsi_forget_cmnds(zfcp_sdev, tm_flags);
}
zfcp_fsf_req_free(fsf_req);
return retval;
}
static int zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *scpnt)
{
return zfcp_task_mgmt_function(scpnt, FCP_TMF_LUN_RESET);
}
static int zfcp_scsi_eh_target_reset_handler(struct scsi_cmnd *scpnt)
{
return zfcp_task_mgmt_function(scpnt, FCP_TMF_TGT_RESET);
}
static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
{
struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scpnt->device);
struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;
int ret;
zfcp_erp_adapter_reopen(adapter, 0, "schrh_1");
zfcp_erp_wait(adapter);
ret = fc_block_scsi_eh(scpnt);
if (ret)
return ret;
return SUCCESS;
}
struct scsi_transport_template *zfcp_scsi_transport_template;
static struct scsi_host_template zfcp_scsi_host_template = {
.module = THIS_MODULE,
.name = "zfcp",
.queuecommand = zfcp_scsi_queuecommand,
.eh_abort_handler = zfcp_scsi_eh_abort_handler,
.eh_device_reset_handler = zfcp_scsi_eh_device_reset_handler,
.eh_target_reset_handler = zfcp_scsi_eh_target_reset_handler,
.eh_host_reset_handler = zfcp_scsi_eh_host_reset_handler,
.slave_alloc = zfcp_scsi_slave_alloc,
.slave_configure = zfcp_scsi_slave_configure,
.slave_destroy = zfcp_scsi_slave_destroy,
.change_queue_depth = scsi_change_queue_depth,
.proc_name = "zfcp",
.can_queue = 4096,
.this_id = -1,
.sg_tablesize = (((QDIO_MAX_ELEMENTS_PER_BUFFER - 1)
* ZFCP_QDIO_MAX_SBALS_PER_REQ) - 2),
/* GCD, adjusted later */
.max_sectors = (((QDIO_MAX_ELEMENTS_PER_BUFFER - 1)
* ZFCP_QDIO_MAX_SBALS_PER_REQ) - 2) * 8,
/* GCD, adjusted later */
.dma_boundary = ZFCP_QDIO_SBALE_LEN - 1,
.use_clustering = 1,
.shost_attrs = zfcp_sysfs_shost_attrs,
.sdev_attrs = zfcp_sysfs_sdev_attrs,
.track_queue_depth = 1,
};
/**
* zfcp_scsi_adapter_register - Register SCSI and FC host with SCSI midlayer
* @adapter: The zfcp adapter to register with the SCSI midlayer
*/
int zfcp_scsi_adapter_register(struct zfcp_adapter *adapter)
{
struct ccw_dev_id dev_id;
if (adapter->scsi_host)
return 0;
ccw_device_get_id(adapter->ccw_device, &dev_id);
/* register adapter as SCSI host with mid layer of SCSI stack */
adapter->scsi_host = scsi_host_alloc(&zfcp_scsi_host_template,
sizeof (struct zfcp_adapter *));
if (!adapter->scsi_host) {
dev_err(&adapter->ccw_device->dev,
"Registering the FCP device with the "
"SCSI stack failed\n");
return -EIO;
}
/* tell the SCSI stack some characteristics of this adapter */
adapter->scsi_host->max_id = 511;
adapter->scsi_host->max_lun = 0xFFFFFFFF;
adapter->scsi_host->max_channel = 0;
adapter->scsi_host->unique_id = dev_id.devno;
adapter->scsi_host->max_cmd_len = 16; /* in struct fcp_cmnd */
adapter->scsi_host->transportt = zfcp_scsi_transport_template;
adapter->scsi_host->hostdata[0] = (unsigned long) adapter;
if (scsi_add_host(adapter->scsi_host, &adapter->ccw_device->dev)) {
scsi_host_put(adapter->scsi_host);
return -EIO;
}
return 0;
}
/**
* zfcp_scsi_adapter_unregister - Unregister SCSI and FC host from SCSI midlayer
* @adapter: The zfcp adapter to unregister.
*/
void zfcp_scsi_adapter_unregister(struct zfcp_adapter *adapter)
{
struct Scsi_Host *shost;
struct zfcp_port *port;
shost = adapter->scsi_host;
if (!shost)
return;
read_lock_irq(&adapter->port_list_lock);
list_for_each_entry(port, &adapter->port_list, list)
port->rport = NULL;
read_unlock_irq(&adapter->port_list_lock);
fc_remove_host(shost);
scsi_remove_host(shost);
scsi_host_put(shost);
adapter->scsi_host = NULL;
}
static struct fc_host_statistics*
zfcp_init_fc_host_stats(struct zfcp_adapter *adapter)
{
struct fc_host_statistics *fc_stats;
if (!adapter->fc_stats) {
fc_stats = kmalloc(sizeof(*fc_stats), GFP_KERNEL);
if (!fc_stats)
return NULL;
adapter->fc_stats = fc_stats; /* freed in adapter_release */
}
memset(adapter->fc_stats, 0, sizeof(*adapter->fc_stats));
return adapter->fc_stats;
}
static void zfcp_adjust_fc_host_stats(struct fc_host_statistics *fc_stats,
struct fsf_qtcb_bottom_port *data,
struct fsf_qtcb_bottom_port *old)
{
fc_stats->seconds_since_last_reset =
data->seconds_since_last_reset - old->seconds_since_last_reset;
fc_stats->tx_frames = data->tx_frames - old->tx_frames;
fc_stats->tx_words = data->tx_words - old->tx_words;
fc_stats->rx_frames = data->rx_frames - old->rx_frames;
fc_stats->rx_words = data->rx_words - old->rx_words;
fc_stats->lip_count = data->lip - old->lip;
fc_stats->nos_count = data->nos - old->nos;
fc_stats->error_frames = data->error_frames - old->error_frames;
fc_stats->dumped_frames = data->dumped_frames - old->dumped_frames;
fc_stats->link_failure_count = data->link_failure - old->link_failure;
fc_stats->loss_of_sync_count = data->loss_of_sync - old->loss_of_sync;
fc_stats->loss_of_signal_count =
data->loss_of_signal - old->loss_of_signal;
fc_stats->prim_seq_protocol_err_count =
data->psp_error_counts - old->psp_error_counts;
fc_stats->invalid_tx_word_count =
data->invalid_tx_words - old->invalid_tx_words;
fc_stats->invalid_crc_count = data->invalid_crcs - old->invalid_crcs;
fc_stats->fcp_input_requests =
data->input_requests - old->input_requests;
fc_stats->fcp_output_requests =
data->output_requests - old->output_requests;
fc_stats->fcp_control_requests =
data->control_requests - old->control_requests;
fc_stats->fcp_input_megabytes = data->input_mb - old->input_mb;
fc_stats->fcp_output_megabytes = data->output_mb - old->output_mb;
}
static void zfcp_set_fc_host_stats(struct fc_host_statistics *fc_stats,
struct fsf_qtcb_bottom_port *data)
{
fc_stats->seconds_since_last_reset = data->seconds_since_last_reset;
fc_stats->tx_frames = data->tx_frames;
fc_stats->tx_words = data->tx_words;
fc_stats->rx_frames = data->rx_frames;
fc_stats->rx_words = data->rx_words;
fc_stats->lip_count = data->lip;
fc_stats->nos_count = data->nos;
fc_stats->error_frames = data->error_frames;
fc_stats->dumped_frames = data->dumped_frames;
fc_stats->link_failure_count = data->link_failure;
fc_stats->loss_of_sync_count = data->loss_of_sync;
fc_stats->loss_of_signal_count = data->loss_of_signal;
fc_stats->prim_seq_protocol_err_count = data->psp_error_counts;
fc_stats->invalid_tx_word_count = data->invalid_tx_words;
fc_stats->invalid_crc_count = data->invalid_crcs;
fc_stats->fcp_input_requests = data->input_requests;
fc_stats->fcp_output_requests = data->output_requests;
fc_stats->fcp_control_requests = data->control_requests;
fc_stats->fcp_input_megabytes = data->input_mb;
fc_stats->fcp_output_megabytes = data->output_mb;
}
static void scsifront_free(struct vscsifrnt_info *info)
{
struct Scsi_Host *host = info->host;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14)
if (host->shost_state != SHOST_DEL) {
#else
if (!test_bit(SHOST_DEL, &host->shost_state)) {
#endif
scsi_remove_host(info->host);
}
if (info->ring_ref != GRANT_INVALID_REF) {
gnttab_end_foreign_access(info->ring_ref,
(unsigned long)info->ring.sring);
info->ring_ref = GRANT_INVALID_REF;
info->ring.sring = NULL;
}
if (info->irq)
unbind_from_irqhandler(info->irq, info);
info->irq = 0;
scsi_host_put(info->host);
}
static int scsifront_alloc_ring(struct vscsifrnt_info *info)
{
struct xenbus_device *dev = info->dev;
struct vscsiif_sring *sring;
int err = -ENOMEM;
info->ring_ref = GRANT_INVALID_REF;
/***** Frontend to Backend ring start *****/
sring = (struct vscsiif_sring *) __get_free_page(GFP_KERNEL);
if (!sring) {
xenbus_dev_fatal(dev, err, "fail to allocate shared ring (Front to Back)");
return err;
}
SHARED_RING_INIT(sring);
FRONT_RING_INIT(&info->ring, sring, PAGE_SIZE);
err = xenbus_grant_ring(dev, virt_to_mfn(sring));
if (err < 0) {
free_page((unsigned long) sring);
info->ring.sring = NULL;
xenbus_dev_fatal(dev, err, "fail to grant shared ring (Front to Back)");
goto free_sring;
}
info->ring_ref = err;
err = bind_listening_port_to_irqhandler(
dev->otherend_id, scsifront_intr,
SA_SAMPLE_RANDOM, "scsifront", info);
if (err <= 0) {
xenbus_dev_fatal(dev, err, "bind_listening_port_to_irqhandler");
goto free_sring;
}
info->irq = err;
return 0;
/* free resource */
free_sring:
scsifront_free(info);
return err;
}
static int scsifront_init_ring(struct vscsifrnt_info *info)
{
struct xenbus_device *dev = info->dev;
struct xenbus_transaction xbt;
int err;
DPRINTK("%s\n",__FUNCTION__);
err = scsifront_alloc_ring(info);
if (err)
return err;
DPRINTK("%u %u\n", info->ring_ref, info->evtchn);
again:
err = xenbus_transaction_start(&xbt);
if (err) {
xenbus_dev_fatal(dev, err, "starting transaction");
}
err = xenbus_printf(xbt, dev->nodename, "ring-ref", "%u",
info->ring_ref);
if (err) {
xenbus_dev_fatal(dev, err, "%s", "writing ring-ref");
goto fail;
}
err = xenbus_printf(xbt, dev->nodename, "event-channel", "%u",
irq_to_evtchn_port(info->irq));
if (err) {
xenbus_dev_fatal(dev, err, "%s", "writing event-channel");
goto fail;
}
err = xenbus_transaction_end(xbt, 0);
if (err) {
if (err == -EAGAIN)
goto again;
xenbus_dev_fatal(dev, err, "completing transaction");
goto free_sring;
}
return 0;
fail:
xenbus_transaction_end(xbt, 1);
free_sring:
/* free resource */
scsifront_free(info);
return err;
}
static int scsifront_probe(struct xenbus_device *dev,
const struct xenbus_device_id *id)
{
struct vscsifrnt_info *info;
struct Scsi_Host *host;
int i, err = -ENOMEM;
char name[DEFAULT_TASK_COMM_LEN];
host = scsi_host_alloc(&scsifront_sht, sizeof(*info));
if (!host) {
xenbus_dev_fatal(dev, err, "fail to allocate scsi host");
return err;
}
info = (struct vscsifrnt_info *) host->hostdata;
info->host = host;
dev->dev.driver_data = info;
info->dev = dev;
for (i = 0; i < VSCSIIF_MAX_REQS; i++) {
info->shadow[i].next_free = i + 1;
init_waitqueue_head(&(info->shadow[i].wq_reset));
info->shadow[i].wait_reset = 0;
}
info->shadow[VSCSIIF_MAX_REQS - 1].next_free = 0x0fff;
err = scsifront_init_ring(info);
if (err) {
scsi_host_put(host);
return err;
}
init_waitqueue_head(&info->wq);
spin_lock_init(&info->io_lock);
spin_lock_init(&info->shadow_lock);
snprintf(name, DEFAULT_TASK_COMM_LEN, "vscsiif.%d", info->host->host_no);
info->kthread = kthread_run(scsifront_schedule, info, name);
if (IS_ERR(info->kthread)) {
err = PTR_ERR(info->kthread);
info->kthread = NULL;
printk(KERN_ERR "scsifront: kthread start err %d\n", err);
goto free_sring;
}
host->max_id = VSCSIIF_MAX_TARGET;
host->max_channel = 0;
host->max_lun = VSCSIIF_MAX_LUN;
host->max_sectors = (VSCSIIF_SG_TABLESIZE - 1) * PAGE_SIZE / 512;
err = scsi_add_host(host, &dev->dev);
if (err) {
printk(KERN_ERR "scsifront: fail to add scsi host %d\n", err);
goto free_sring;
}
xenbus_switch_state(dev, XenbusStateInitialised);
return 0;
free_sring:
/* free resource */
scsifront_free(info);
return err;
}
static int scsifront_remove(struct xenbus_device *dev)
{
struct vscsifrnt_info *info = dev->dev.driver_data;
DPRINTK("%s: %s removed\n",__FUNCTION__ ,dev->nodename);
if (info->kthread) {
kthread_stop(info->kthread);
info->kthread = NULL;
}
scsifront_free(info);
return 0;
}
static int scsifront_disconnect(struct vscsifrnt_info *info)
{
struct xenbus_device *dev = info->dev;
struct Scsi_Host *host = info->host;
DPRINTK("%s: %s disconnect\n",__FUNCTION__ ,dev->nodename);
/*
When this function is executed, all devices of
Frontend have been deleted.
Therefore, it need not block I/O before remove_host.
*/
scsi_remove_host(host);
xenbus_frontend_closed(dev);
return 0;
}
#define VSCSIFRONT_OP_ADD_LUN 1
#define VSCSIFRONT_OP_DEL_LUN 2
static void scsifront_do_lun_hotplug(struct vscsifrnt_info *info, int op)
{
struct xenbus_device *dev = info->dev;
int i, err = 0;
char str[64], state_str[64];
char **dir;
unsigned int dir_n = 0;
unsigned int device_state;
unsigned int hst, chn, tgt, lun;
struct scsi_device *sdev;
dir = xenbus_directory(XBT_NIL, dev->otherend, "vscsi-devs", &dir_n);
if (IS_ERR(dir))
return;
for (i = 0; i < dir_n; i++) {
/* read status */
snprintf(str, sizeof(str), "vscsi-devs/%s/state", dir[i]);
err = xenbus_scanf(XBT_NIL, dev->otherend, str, "%u",
&device_state);
if (XENBUS_EXIST_ERR(err))
continue;
/* virtual SCSI device */
snprintf(str, sizeof(str), "vscsi-devs/%s/v-dev", dir[i]);
err = xenbus_scanf(XBT_NIL, dev->otherend, str,
"%u:%u:%u:%u", &hst, &chn, &tgt, &lun);
if (XENBUS_EXIST_ERR(err))
continue;
/* front device state path */
snprintf(state_str, sizeof(state_str), "vscsi-devs/%s/state", dir[i]);
switch (op) {
case VSCSIFRONT_OP_ADD_LUN:
if (device_state == XenbusStateInitialised) {
sdev = scsi_device_lookup(info->host, chn, tgt, lun);
if (sdev) {
printk(KERN_ERR "scsifront: Device already in use.\n");
scsi_device_put(sdev);
xenbus_printf(XBT_NIL, dev->nodename,
state_str, "%d", XenbusStateClosed);
} else {
scsi_add_device(info->host, chn, tgt, lun);
xenbus_printf(XBT_NIL, dev->nodename,
state_str, "%d", XenbusStateConnected);
}
}
break;
case VSCSIFRONT_OP_DEL_LUN:
if (device_state == XenbusStateClosing) {
sdev = scsi_device_lookup(info->host, chn, tgt, lun);
if (sdev) {
scsi_remove_device(sdev);
scsi_device_put(sdev);
xenbus_printf(XBT_NIL, dev->nodename,
state_str, "%d", XenbusStateClosed);
}
}
break;
default:
break;
}
}
kfree(dir);
return;
}
static void scsifront_backend_changed(struct xenbus_device *dev,
enum xenbus_state backend_state)
{
struct vscsifrnt_info *info = dev->dev.driver_data;
DPRINTK("%p %u %u\n", dev, dev->state, backend_state);
switch (backend_state) {
case XenbusStateUnknown:
case XenbusStateInitialising:
case XenbusStateInitWait:
case XenbusStateClosed:
break;
case XenbusStateInitialised:
break;
case XenbusStateConnected:
if (xenbus_read_driver_state(dev->nodename) ==
XenbusStateInitialised) {
scsifront_do_lun_hotplug(info, VSCSIFRONT_OP_ADD_LUN);
}
if (dev->state == XenbusStateConnected)
break;
xenbus_switch_state(dev, XenbusStateConnected);
break;
case XenbusStateClosing:
scsifront_disconnect(info);
break;
case XenbusStateReconfiguring:
scsifront_do_lun_hotplug(info, VSCSIFRONT_OP_DEL_LUN);
xenbus_switch_state(dev, XenbusStateReconfiguring);
break;
case XenbusStateReconfigured:
scsifront_do_lun_hotplug(info, VSCSIFRONT_OP_ADD_LUN);
xenbus_switch_state(dev, XenbusStateConnected);
break;
}
}
static struct xenbus_device_id scsifront_ids[] = {
{ "vscsi" },
{ "" }
};
MODULE_ALIAS("xen:vscsi");
static struct xenbus_driver scsifront_driver = {
.name = "vscsi",
.owner = THIS_MODULE,
.ids = scsifront_ids,
.probe = scsifront_probe,
.remove = scsifront_remove,
/* .resume = scsifront_resume, */
.otherend_changed = scsifront_backend_changed,
};
int scsifront_xenbus_init(void)
{
return xenbus_register_frontend(&scsifront_driver);
}
void scsifront_xenbus_unregister(void)
{
xenbus_unregister_driver(&scsifront_driver);
}
static int eesoxscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
{
struct Scsi_Host *host;
struct eesoxscsi_info *info;
void __iomem *base;
int ret;
ret = ecard_request_resources(ec);
if (ret)
goto out;
base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
if (!base) {
ret = -ENOMEM;
goto out_region;
}
host = scsi_host_alloc(&eesox_template,
sizeof(struct eesoxscsi_info));
if (!host) {
ret = -ENOMEM;
goto out_region;
}
ecard_set_drvdata(ec, host);
info = (struct eesoxscsi_info *)host->hostdata;
info->ec = ec;
info->base = base;
info->ctl_port = base + EESOX_CONTROL;
info->control = term[ec->slot_no] ? EESOX_TERM_ENABLE : 0;
writeb(info->control, info->ctl_port);
info->info.scsi.io_base = base + EESOX_FAS216_OFFSET;
info->info.scsi.io_shift = EESOX_FAS216_SHIFT;
info->info.scsi.irq = ec->irq;
info->info.scsi.dma = ec->dma;
info->info.ifcfg.clockrate = 40; /* MHz */
info->info.ifcfg.select_timeout = 255;
info->info.ifcfg.asyncperiod = 200; /* ns */
info->info.ifcfg.sync_max_depth = 7;
info->info.ifcfg.cntl3 = CNTL3_FASTSCSI | CNTL3_FASTCLK;
info->info.ifcfg.disconnect_ok = 1;
info->info.ifcfg.wide_max_size = 0;
info->info.ifcfg.capabilities = FASCAP_PSEUDODMA;
info->info.dma.setup = eesoxscsi_dma_setup;
info->info.dma.pseudo = eesoxscsi_dma_pseudo;
info->info.dma.stop = eesoxscsi_dma_stop;
ec->irqaddr = base + EESOX_DMASTAT;
ec->irqmask = EESOX_STAT_INTR;
ecard_setirq(ec, &eesoxscsi_ops, info);
device_create_file(&ec->dev, &dev_attr_bus_term);
ret = fas216_init(host);
if (ret)
goto out_free;
ret = request_irq(ec->irq, eesoxscsi_intr, 0, "eesoxscsi", info);
if (ret) {
printk("scsi%d: IRQ%d not free: %d\n",
host->host_no, ec->irq, ret);
goto out_remove;
}
if (info->info.scsi.dma != NO_DMA) {
if (request_dma(info->info.scsi.dma, "eesox")) {
printk("scsi%d: DMA%d not free, DMA disabled\n",
host->host_no, info->info.scsi.dma);
info->info.scsi.dma = NO_DMA;
} else {
set_dma_speed(info->info.scsi.dma, 180);
info->info.ifcfg.capabilities |= FASCAP_DMA;
info->info.ifcfg.cntl3 |= CNTL3_BS8;
}
}
ret = fas216_add(host, &ec->dev);
if (ret == 0)
goto out;
if (info->info.scsi.dma != NO_DMA)
free_dma(info->info.scsi.dma);
free_irq(ec->irq, host);
out_remove:
fas216_remove(host);
out_free:
device_remove_file(&ec->dev, &dev_attr_bus_term);
scsi_host_put(host);
out_region:
ecard_release_resources(ec);
out:
return ret;
}
//probe书中有教
static int our_probe(struct usb_interface *intf,
const struct usb_device_id *id){
struct us_data *us;
int result;
//device
struct device *dev;
//scsihost
struct Scsi_Host *host;
//检测id是否符合 和intf
struct us_unusual_dev *unusual_dev;
unusual_dev=(id - usb_storage_usb_ids) + us_unusual_dev_list;
if(usb_usual_check_type(id,USB_US_TYPE_STOR) || usb_usual_ignore_device(intf))
return -ENXIO;
printk(KERN_ALERT "probe usb usb detected!\n");
//分配个host
host = scsi_host_alloc(&usb_stor_host_template,sizeof(*us));
if(!host){
dev_warn(&intf->dev,"fail to allocate the scsi host\n");
return -ENOMEM;
}
//host中的一些初始化
host->max_cmd_len = 16;
host-> sg_tablesize = usb_stor_sg_tablesize(intf);
us= host_to_us(host);//us 作为host中 的us
//分内存？
memset(us,0,sizeof(struct us_data));
mutex_init(&(us->dev_mutex));
init_completion(&us->cmnd_ready);
init_completion(&(us->notify));
init_waitqueue_head(&us->delay_wait);
INIT_DELAYED_WORK(&us->scan_dwork,usb_stor_scan_dwork);
result = associate_dev(us,intf);
if(result)
goto Bad;
result = get_device_info(us,id,unusual_dev);
if(result)
goto Bad;
//transport protocol
get_transport(us);
get_protocol(us);
if(!us->transport ||!us->proto_handler){
result=-ENXIO;
goto Bad;
}
printk(KERN_ALERT"Transport: %s\n",us->transport_name);
printk(KERN_ALERT"Protocol: %s\n",us->transport_name);
dev = &us->pusb_intf->dev;
//设置max lun
if(us->fflags & US_FL_SINGLE_LUN)
us->max_lun =0;
//endpoint get pipe
result = get_pipes(us);
if(result)
goto Bad;
//如果u盘前十个指令错误，重置
if (us->fflags & US_FL_INITIAL_READ10)
set_bit(US_FLIDX_REDO_READ10, &us->dflags);
//申请子资源，添加进host
result=usb_stor_acquire_sesources(us);
if(result)
goto Bad;
snprintf(us->scsi_name,sizeof(us->scsi_name),"our-usb-storage%s",dev_name(&us->pusb_intf->dev));
result= scsi_add_host(us_to_host(us),dev);
if(result){
printk(KERN_ALERT"UNable to add the host\n");
goto Bad;
}
//scsi设备延时探测
usb_autopm_get_interface_no_resume(us->pusb_intf);
set_bit(US_FLIDX_SCAN_PENDING,&us->dflags);
if(delay_use>0)
dev_dbg(dev,"waiting for device before scanning\n");
queue_delayed_work(system_freezable_wq,&us->scan_dwork,delay_use * HZ);
return 0;
Bad:
printk(KERN_ALERT "probe false!\n");
release_everything(us);
return result;
}
static void zfcp_scsi_forget_cmnds(struct zfcp_scsi_dev *zsdev, u8 tm_flags)
{
struct zfcp_adapter *adapter = zsdev->port->adapter;
struct zfcp_scsi_req_filter filter = {
.tmf_scope = FCP_TMF_TGT_RESET,
.port_handle = zsdev->port->handle,
};
unsigned long flags;
if (tm_flags == FCP_TMF_LUN_RESET) {
filter.tmf_scope = FCP_TMF_LUN_RESET;
filter.lun_handle = zsdev->lun_handle;
}
/*
* abort_lock secures against other processings - in the abort-function
* and normal cmnd-handler - of (struct zfcp_fsf_req *)->data
*/
write_lock_irqsave(&adapter->abort_lock, flags);
zfcp_reqlist_apply_for_all(adapter->req_list, zfcp_scsi_forget_cmnd,
&filter);
write_unlock_irqrestore(&adapter->abort_lock, flags);
}
/**
* zfcp_scsi_task_mgmt_function() - Send a task management function (sync).
* @sdev: Pointer to SCSI device to send the task management command to.
* @tm_flags: Task management flags,
* here we only handle %FCP_TMF_TGT_RESET or %FCP_TMF_LUN_RESET.
*/
static int zfcp_scsi_task_mgmt_function(struct scsi_device *sdev, u8 tm_flags)
{
struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;
struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
struct zfcp_fsf_req *fsf_req = NULL;
int retval = SUCCESS, ret;
int retry = 3;
while (retry--) {
fsf_req = zfcp_fsf_fcp_task_mgmt(sdev, tm_flags);
if (fsf_req)
break;
zfcp_dbf_scsi_devreset("wait", sdev, tm_flags, NULL);
zfcp_erp_wait(adapter);
ret = fc_block_rport(rport);
if (ret) {
zfcp_dbf_scsi_devreset("fiof", sdev, tm_flags, NULL);
return ret;
}
if (!(atomic_read(&adapter->status) &
ZFCP_STATUS_COMMON_RUNNING)) {
zfcp_dbf_scsi_devreset("nres", sdev, tm_flags, NULL);
return SUCCESS;
}
}
if (!fsf_req) {
zfcp_dbf_scsi_devreset("reqf", sdev, tm_flags, NULL);
return FAILED;
}
wait_for_completion(&fsf_req->completion);
if (fsf_req->status & ZFCP_STATUS_FSFREQ_TMFUNCFAILED) {
zfcp_dbf_scsi_devreset("fail", sdev, tm_flags, fsf_req);
retval = FAILED;
} else {
zfcp_dbf_scsi_devreset("okay", sdev, tm_flags, fsf_req);
zfcp_scsi_forget_cmnds(zfcp_sdev, tm_flags);
}
zfcp_fsf_req_free(fsf_req);
return retval;
}
static int zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *scpnt)
{
struct scsi_device *sdev = scpnt->device;
return zfcp_scsi_task_mgmt_function(sdev, FCP_TMF_LUN_RESET);
}
static int zfcp_scsi_eh_target_reset_handler(struct scsi_cmnd *scpnt)
{
struct scsi_target *starget = scsi_target(scpnt->device);
struct fc_rport *rport = starget_to_rport(starget);
struct Scsi_Host *shost = rport_to_shost(rport);
struct scsi_device *sdev = NULL, *tmp_sdev;
struct zfcp_adapter *adapter =
(struct zfcp_adapter *)shost->hostdata[0];
int ret;
shost_for_each_device(tmp_sdev, shost) {
if (tmp_sdev->id == starget->id) {
sdev = tmp_sdev;
break;
}
}
if (!sdev) {
ret = FAILED;
zfcp_dbf_scsi_eh("tr_nosd", adapter, starget->id, ret);
return ret;
}
ret = zfcp_scsi_task_mgmt_function(sdev, FCP_TMF_TGT_RESET);
/* release reference from above shost_for_each_device */
if (sdev)
scsi_device_put(tmp_sdev);
return ret;
}
static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
{
struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scpnt->device);
struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;
int ret = SUCCESS, fc_ret;
zfcp_erp_adapter_reopen(adapter, 0, "schrh_1");
zfcp_erp_wait(adapter);
fc_ret = fc_block_scsi_eh(scpnt);
if (fc_ret)
ret = fc_ret;
zfcp_dbf_scsi_eh("schrh_r", adapter, ~0, ret);
return ret;
}
/**
* zfcp_scsi_sysfs_host_reset() - Support scsi_host sysfs attribute host_reset.
* @shost: Pointer to Scsi_Host to perform action on.
* @reset_type: We support %SCSI_ADAPTER_RESET but not %SCSI_FIRMWARE_RESET.
*
* Return: 0 on %SCSI_ADAPTER_RESET, -%EOPNOTSUPP otherwise.
*
* This is similar to zfcp_sysfs_adapter_failed_store().
*/
static int zfcp_scsi_sysfs_host_reset(struct Scsi_Host *shost, int reset_type)
{
struct zfcp_adapter *adapter =
(struct zfcp_adapter *)shost->hostdata[0];
int ret = 0;
if (reset_type != SCSI_ADAPTER_RESET) {
ret = -EOPNOTSUPP;
zfcp_dbf_scsi_eh("scshr_n", adapter, ~0, ret);
return ret;
}
zfcp_erp_adapter_reset_sync(adapter, "scshr_y");
return ret;
}
struct scsi_transport_template *zfcp_scsi_transport_template;
static struct scsi_host_template zfcp_scsi_host_template = {
.module = THIS_MODULE,
.name = "zfcp",
.queuecommand = zfcp_scsi_queuecommand,
.eh_timed_out = fc_eh_timed_out,
.eh_abort_handler = zfcp_scsi_eh_abort_handler,
.eh_device_reset_handler = zfcp_scsi_eh_device_reset_handler,
.eh_target_reset_handler = zfcp_scsi_eh_target_reset_handler,
.eh_host_reset_handler = zfcp_scsi_eh_host_reset_handler,
.slave_alloc = zfcp_scsi_slave_alloc,
.slave_configure = zfcp_scsi_slave_configure,
.slave_destroy = zfcp_scsi_slave_destroy,
.change_queue_depth = scsi_change_queue_depth,
.host_reset = zfcp_scsi_sysfs_host_reset,
.proc_name = "zfcp",
.can_queue = 4096,
.this_id = -1,
.sg_tablesize = (((QDIO_MAX_ELEMENTS_PER_BUFFER - 1)
* ZFCP_QDIO_MAX_SBALS_PER_REQ) - 2),
/* GCD, adjusted later */
.max_sectors = (((QDIO_MAX_ELEMENTS_PER_BUFFER - 1)
* ZFCP_QDIO_MAX_SBALS_PER_REQ) - 2) * 8,
/* GCD, adjusted later */
/* report size limit per scatter-gather segment */
.max_segment_size = ZFCP_QDIO_SBALE_LEN,
.dma_boundary = ZFCP_QDIO_SBALE_LEN - 1,
.shost_attrs = zfcp_sysfs_shost_attrs,
.sdev_attrs = zfcp_sysfs_sdev_attrs,
.track_queue_depth = 1,
.supported_mode = MODE_INITIATOR,
};
/**
* zfcp_scsi_adapter_register - Register SCSI and FC host with SCSI midlayer
* @adapter: The zfcp adapter to register with the SCSI midlayer
*/
int zfcp_scsi_adapter_register(struct zfcp_adapter *adapter)
{
struct ccw_dev_id dev_id;
if (adapter->scsi_host)
return 0;
ccw_device_get_id(adapter->ccw_device, &dev_id);
/* register adapter as SCSI host with mid layer of SCSI stack */
adapter->scsi_host = scsi_host_alloc(&zfcp_scsi_host_template,
sizeof (struct zfcp_adapter *));
if (!adapter->scsi_host) {
dev_err(&adapter->ccw_device->dev,
"Registering the FCP device with the "
"SCSI stack failed\n");
return -EIO;
}
/* tell the SCSI stack some characteristics of this adapter */
adapter->scsi_host->max_id = 511;
adapter->scsi_host->max_lun = 0xFFFFFFFF;
adapter->scsi_host->max_channel = 0;
adapter->scsi_host->unique_id = dev_id.devno;
adapter->scsi_host->max_cmd_len = 16; /* in struct fcp_cmnd */
adapter->scsi_host->transportt = zfcp_scsi_transport_template;
adapter->scsi_host->hostdata[0] = (unsigned long) adapter;
if (scsi_add_host(adapter->scsi_host, &adapter->ccw_device->dev)) {
scsi_host_put(adapter->scsi_host);
return -EIO;
}
return 0;
}
/**
* zfcp_scsi_adapter_unregister - Unregister SCSI and FC host from SCSI midlayer
* @adapter: The zfcp adapter to unregister.
*/
void zfcp_scsi_adapter_unregister(struct zfcp_adapter *adapter)
{
struct Scsi_Host *shost;
struct zfcp_port *port;
shost = adapter->scsi_host;
if (!shost)
return;
read_lock_irq(&adapter->port_list_lock);
list_for_each_entry(port, &adapter->port_list, list)
port->rport = NULL;
read_unlock_irq(&adapter->port_list_lock);
fc_remove_host(shost);
scsi_remove_host(shost);
scsi_host_put(shost);
adapter->scsi_host = NULL;
}
static struct fc_host_statistics*
zfcp_scsi_init_fc_host_stats(struct zfcp_adapter *adapter)
{
struct fc_host_statistics *fc_stats;
if (!adapter->fc_stats) {
fc_stats = kmalloc(sizeof(*fc_stats), GFP_KERNEL);
if (!fc_stats)
return NULL;
adapter->fc_stats = fc_stats; /* freed in adapter_release */
}
memset(adapter->fc_stats, 0, sizeof(*adapter->fc_stats));
return adapter->fc_stats;
}
static void zfcp_scsi_adjust_fc_host_stats(struct fc_host_statistics *fc_stats,
struct fsf_qtcb_bottom_port *data,
struct fsf_qtcb_bottom_port *old)
{
fc_stats->seconds_since_last_reset =
data->seconds_since_last_reset - old->seconds_since_last_reset;
fc_stats->tx_frames = data->tx_frames - old->tx_frames;
fc_stats->tx_words = data->tx_words - old->tx_words;
fc_stats->rx_frames = data->rx_frames - old->rx_frames;
fc_stats->rx_words = data->rx_words - old->rx_words;
fc_stats->lip_count = data->lip - old->lip;
fc_stats->nos_count = data->nos - old->nos;
fc_stats->error_frames = data->error_frames - old->error_frames;
fc_stats->dumped_frames = data->dumped_frames - old->dumped_frames;
fc_stats->link_failure_count = data->link_failure - old->link_failure;
fc_stats->loss_of_sync_count = data->loss_of_sync - old->loss_of_sync;
fc_stats->loss_of_signal_count =
data->loss_of_signal - old->loss_of_signal;
fc_stats->prim_seq_protocol_err_count =
data->psp_error_counts - old->psp_error_counts;
fc_stats->invalid_tx_word_count =
data->invalid_tx_words - old->invalid_tx_words;
fc_stats->invalid_crc_count = data->invalid_crcs - old->invalid_crcs;
fc_stats->fcp_input_requests =
data->input_requests - old->input_requests;
fc_stats->fcp_output_requests =
data->output_requests - old->output_requests;
fc_stats->fcp_control_requests =
data->control_requests - old->control_requests;
fc_stats->fcp_input_megabytes = data->input_mb - old->input_mb;
fc_stats->fcp_output_megabytes = data->output_mb - old->output_mb;
}
static void zfcp_scsi_set_fc_host_stats(struct fc_host_statistics *fc_stats,
struct fsf_qtcb_bottom_port *data)
{
fc_stats->seconds_since_last_reset = data->seconds_since_last_reset;
fc_stats->tx_frames = data->tx_frames;
fc_stats->tx_words = data->tx_words;
fc_stats->rx_frames = data->rx_frames;
fc_stats->rx_words = data->rx_words;
fc_stats->lip_count = data->lip;
fc_stats->nos_count = data->nos;
fc_stats->error_frames = data->error_frames;
fc_stats->dumped_frames = data->dumped_frames;
fc_stats->link_failure_count = data->link_failure;
fc_stats->loss_of_sync_count = data->loss_of_sync;
fc_stats->loss_of_signal_count = data->loss_of_signal;
fc_stats->prim_seq_protocol_err_count = data->psp_error_counts;
fc_stats->invalid_tx_word_count = data->invalid_tx_words;
fc_stats->invalid_crc_count = data->invalid_crcs;
fc_stats->fcp_input_requests = data->input_requests;
fc_stats->fcp_output_requests = data->output_requests;
fc_stats->fcp_control_requests = data->control_requests;
fc_stats->fcp_input_megabytes = data->input_mb;
fc_stats->fcp_output_megabytes = data->output_mb;
}
static int __devinit pvscsi_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
struct pvscsi_adapter *adapter;
struct Scsi_Host *host;
unsigned int i;
unsigned long flags = 0;
int error;
error = -ENODEV;
if (pci_enable_device(pdev))
return error;
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) == 0 &&
pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)) == 0) {
printk(KERN_INFO "vmw_pvscsi: using 64bit dma\n");
} else if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) == 0 &&
pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) == 0) {
printk(KERN_INFO "vmw_pvscsi: using 32bit dma\n");
} else {
printk(KERN_ERR "vmw_pvscsi: failed to set DMA mask\n");
goto out_disable_device;
}
pvscsi_template.can_queue =
min(PVSCSI_MAX_NUM_PAGES_REQ_RING, pvscsi_ring_pages) *
PVSCSI_MAX_NUM_REQ_ENTRIES_PER_PAGE;
pvscsi_template.cmd_per_lun =
min(pvscsi_template.can_queue, pvscsi_cmd_per_lun);
host = scsi_host_alloc(&pvscsi_template, sizeof(struct pvscsi_adapter));
if (!host) {
printk(KERN_ERR "vmw_pvscsi: failed to allocate host\n");
goto out_disable_device;
}
adapter = shost_priv(host);
memset(adapter, 0, sizeof(*adapter));
adapter->dev = pdev;
adapter->host = host;
spin_lock_init(&adapter->hw_lock);
host->max_channel = 0;
host->max_id = 16;
host->max_lun = 1;
host->max_cmd_len = 16;
adapter->rev = pdev->revision;
if (pci_request_regions(pdev, "vmw_pvscsi")) {
printk(KERN_ERR "vmw_pvscsi: pci memory selection failed\n");
goto out_free_host;
}
for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
if ((pci_resource_flags(pdev, i) & PCI_BASE_ADDRESS_SPACE_IO))
continue;
if (pci_resource_len(pdev, i) < PVSCSI_MEM_SPACE_SIZE)
continue;
break;
}
if (i == DEVICE_COUNT_RESOURCE) {
printk(KERN_ERR
"vmw_pvscsi: adapter has no suitable MMIO region\n");
goto out_release_resources;
}
adapter->mmioBase = pci_iomap(pdev, i, PVSCSI_MEM_SPACE_SIZE);
if (!adapter->mmioBase) {
printk(KERN_ERR
"vmw_pvscsi: can't iomap for BAR %d memsize %lu\n",
i, PVSCSI_MEM_SPACE_SIZE);
goto out_release_resources;
}
pci_set_master(pdev);
pci_set_drvdata(pdev, host);
ll_adapter_reset(adapter);
adapter->use_msg = pvscsi_setup_msg_workqueue(adapter);
error = pvscsi_allocate_rings(adapter);
if (error) {
printk(KERN_ERR "vmw_pvscsi: unable to allocate ring memory\n");
goto out_release_resources;
}
/*
* From this point on we should reset the adapter if anything goes
* wrong.
*/
pvscsi_setup_all_rings(adapter);
adapter->cmd_map = kcalloc(adapter->req_depth,
sizeof(struct pvscsi_ctx), GFP_KERNEL);
if (!adapter->cmd_map) {
printk(KERN_ERR "vmw_pvscsi: failed to allocate memory.\n");
error = -ENOMEM;
goto out_reset_adapter;
}
INIT_LIST_HEAD(&adapter->cmd_pool);
for (i = 0; i < adapter->req_depth; i++) {
struct pvscsi_ctx *ctx = adapter->cmd_map + i;
list_add(&ctx->list, &adapter->cmd_pool);
}
error = pvscsi_allocate_sg(adapter);
if (error) {
printk(KERN_ERR "vmw_pvscsi: unable to allocate s/g table\n");
goto out_reset_adapter;
}
if (!pvscsi_disable_msix &&
pvscsi_setup_msix(adapter, &adapter->irq) == 0) {
printk(KERN_INFO "vmw_pvscsi: using MSI-X\n");
adapter->use_msix = 1;
} else if (!pvscsi_disable_msi && pci_enable_msi(pdev) == 0) {
printk(KERN_INFO "vmw_pvscsi: using MSI\n");
adapter->use_msi = 1;
adapter->irq = pdev->irq;
} else {
printk(KERN_INFO "vmw_pvscsi: using INTx\n");
adapter->irq = pdev->irq;
flags = IRQF_SHARED;
}
error = request_irq(adapter->irq, pvscsi_isr, flags,
"vmw_pvscsi", adapter);
if (error) {
printk(KERN_ERR
"vmw_pvscsi: unable to request IRQ: %d\n", error);
adapter->irq = 0;
goto out_reset_adapter;
}
error = scsi_add_host(host, &pdev->dev);
if (error) {
printk(KERN_ERR
"vmw_pvscsi: scsi_add_host failed: %d\n", error);
goto out_reset_adapter;
}
dev_info(&pdev->dev, "VMware PVSCSI rev %d host #%u\n",
adapter->rev, host->host_no);
pvscsi_unmask_intr(adapter);
scsi_scan_host(host);
return 0;
out_reset_adapter:
ll_adapter_reset(adapter);
out_release_resources:
pvscsi_release_resources(adapter);
out_free_host:
scsi_host_put(host);
out_disable_device:
pci_set_drvdata(pdev, NULL);
pci_disable_device(pdev);
return error;
}
static int __init amiga_a3000_scsi_probe(struct platform_device *pdev)
{
struct resource *res;
struct Scsi_Host *instance;
int error;
struct a3000_scsiregs *regs;
wd33c93_regs wdregs;
struct a3000_hostdata *hdata;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
if (!request_mem_region(res->start, resource_size(res), "wd33c93"))
return -EBUSY;
instance = scsi_host_alloc(&amiga_a3000_scsi_template,
sizeof(struct a3000_hostdata));
if (!instance) {
error = -ENOMEM;
goto fail_alloc;
}
instance->irq = IRQ_AMIGA_PORTS;
regs = (struct a3000_scsiregs *)ZTWO_VADDR(res->start);
regs->DAWR = DAWR_A3000;
wdregs.SASR = ®s->SASR;
wdregs.SCMD = ®s->SCMD;
hdata = shost_priv(instance);
hdata->wh.no_sync = 0xff;
hdata->wh.fast = 0;
hdata->wh.dma_mode = CTRL_DMA;
hdata->regs = regs;
wd33c93_init(instance, wdregs, dma_setup, dma_stop, WD33C93_FS_12_15);
error = request_irq(IRQ_AMIGA_PORTS, a3000_intr, IRQF_SHARED,
"A3000 SCSI", instance);
if (error)
goto fail_irq;
regs->CNTR = CNTR_PDMD | CNTR_INTEN;
error = scsi_add_host(instance, NULL);
if (error)
goto fail_host;
platform_set_drvdata(pdev, instance);
scsi_scan_host(instance);
return 0;
fail_host:
free_irq(IRQ_AMIGA_PORTS, instance);
fail_irq:
scsi_host_put(instance);
fail_alloc:
release_mem_region(res->start, resource_size(res));
return error;
}
static int __devinit esp_mac_probe(struct platform_device *dev)
{
struct scsi_host_template *tpnt = &scsi_esp_template;
struct Scsi_Host *host;
struct esp *esp;
int err;
struct mac_esp_priv *mep;
if (!MACH_IS_MAC)
return -ENODEV;
if (dev->id > 1)
return -ENODEV;
host = scsi_host_alloc(tpnt, sizeof(struct esp));
err = -ENOMEM;
if (!host)
goto fail;
host->max_id = 8;
host->use_clustering = DISABLE_CLUSTERING;
esp = shost_priv(host);
esp->host = host;
esp->dev = dev;
esp->command_block = kzalloc(16, GFP_KERNEL);
if (!esp->command_block)
goto fail_unlink;
esp->command_block_dma = (dma_addr_t)esp->command_block;
esp->scsi_id = 7;
host->this_id = esp->scsi_id;
esp->scsi_id_mask = 1 << esp->scsi_id;
mep = kzalloc(sizeof(struct mac_esp_priv), GFP_KERNEL);
if (!mep)
goto fail_free_command_block;
mep->esp = esp;
platform_set_drvdata(dev, mep);
switch (macintosh_config->scsi_type) {
case MAC_SCSI_QUADRA:
esp->cfreq = 16500000;
esp->regs = (void __iomem *)MAC_ESP_REGS_QUADRA;
mep->pdma_io = esp->regs + MAC_ESP_PDMA_IO_OFFSET;
mep->pdma_regs = NULL;
break;
case MAC_SCSI_QUADRA2:
esp->cfreq = 25000000;
esp->regs = (void __iomem *)(MAC_ESP_REGS_QUADRA2 +
dev->id * MAC_ESP_REGS_SPACING);
mep->pdma_io = esp->regs + MAC_ESP_PDMA_IO_OFFSET;
mep->pdma_regs = (void __iomem *)(MAC_ESP_PDMA_REG +
dev->id * MAC_ESP_PDMA_REG_SPACING);
nubus_writel(0x1d1, mep->pdma_regs);
break;
case MAC_SCSI_QUADRA3:
/* These quadras have a real DMA controller (the PSC) but we
* don't know how to drive it so we must use PIO instead.
*/
esp->cfreq = 25000000;
esp->regs = (void __iomem *)MAC_ESP_REGS_QUADRA3;
mep->pdma_io = NULL;
mep->pdma_regs = NULL;
break;
}
esp->ops = &mac_esp_ops;
if (mep->pdma_io == NULL) {
printk(KERN_INFO PFX "using PIO for controller %d\n", dev->id);
esp_write8(0, ESP_TCLOW);
esp_write8(0, ESP_TCMED);
esp->flags = ESP_FLAG_DISABLE_SYNC;
mac_esp_ops.send_dma_cmd = mac_esp_send_pio_cmd;
} else {
printk(KERN_INFO PFX "using PDMA for controller %d\n", dev->id);
}
host->irq = IRQ_MAC_SCSI;
esp_chips[dev->id] = esp;
mb();
if (esp_chips[!dev->id] == NULL) {
err = request_irq(host->irq, mac_scsi_esp_intr, 0, "ESP", NULL);
if (err < 0) {
esp_chips[dev->id] = NULL;
goto fail_free_priv;
}
}
err = scsi_esp_register(esp, &dev->dev);
if (err)
goto fail_free_irq;
return 0;
fail_free_irq:
if (esp_chips[!dev->id] == NULL)
free_irq(host->irq, esp);
fail_free_priv:
kfree(mep);
fail_free_command_block:
kfree(esp->command_block);
fail_unlink:
scsi_host_put(host);
fail:
return err;
}
