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Commit e4babc07 authored by Jeff Garzik's avatar Jeff Garzik
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Merge pobox.com:/spare/repo/linux-2.6 

into pobox.com:/spare/repo/libata-2.6
parents 4d802161 27189ec1
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Showing with 725 additions and 454 deletions
drivers/scsi/ata_piix.c
View file @ e4babc07
......@@ -39,6 +39,7 @@ enum {
ICH5_PMR = 0x90, /* port mapping register */
ICH5_PCS = 0x92, /* port control and status */
PIIX_FLAG_AHCI = (1 << 28), /* AHCI possible */
PIIX_FLAG_CHECKINTR = (1 << 29), /* make sure PCI INTx enabled */
PIIX_FLAG_COMBINED = (1 << 30), /* combined mode possible */
......@@ -58,6 +59,7 @@ enum {
ich5_sata = 1,
piix4_pata = 2,
ich6_sata = 3,
ich6_sata_rm = 4,
};
static int piix_init_one (struct pci_dev *pdev,
......@@ -65,10 +67,8 @@ static int piix_init_one (struct pci_dev *pdev,
static void piix_pata_phy_reset(struct ata_port *ap);
static void piix_sata_phy_reset(struct ata_port *ap);
static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev,
unsigned int pio);
static void piix_set_udmamode (struct ata_port *ap, struct ata_device *adev,
unsigned int udma);
static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev);
static void piix_set_dmamode (struct ata_port *ap, struct ata_device *adev);
static unsigned int in_module_init = 1;
......@@ -87,13 +87,9 @@ static struct pci_device_id piix_pci_tbl[] = {
{ 0x8086, 0x24df, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_sata },
{ 0x8086, 0x25a3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_sata },
{ 0x8086, 0x25b0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_sata },
/* ICH6 operates in two modes, "looks-like-ICH5" mode,
* and enhanced mode, with queueing and other fancy stuff.
* This is distinguished by PCI class code.
*/
{ 0x8086, 0x2651, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata },
{ 0x8086, 0x2652, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata },
{ 0x8086, 0x2652, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_rm },
{ 0x8086, 0x2653, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_rm },
{ } /* terminate list */
};
......@@ -126,7 +122,7 @@ static Scsi_Host_Template piix_sht = {
static struct ata_port_operations piix_pata_ops = {
.port_disable = ata_port_disable,
.set_piomode = piix_set_piomode,
.set_udmamode = piix_set_udmamode,
.set_dmamode = piix_set_dmamode,
.tf_load = ata_tf_load_pio,
.tf_read = ata_tf_read_pio,
......@@ -151,8 +147,6 @@ static struct ata_port_operations piix_pata_ops = {
static struct ata_port_operations piix_sata_ops = {
.port_disable = ata_port_disable,
.set_piomode = piix_set_piomode,
.set_udmamode = piix_set_udmamode,
.tf_load = ata_tf_load_pio,
.tf_read = ata_tf_read_pio,
......@@ -181,7 +175,12 @@ static struct ata_port_info piix_port_info[] = {
.sht = &piix_sht,
.host_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST |
PIIX_FLAG_CHECKINTR,
.pio_mask = 0x03, /* pio3-4 */
.pio_mask = 0x1f, /* pio0-4 */
#if 0
.mwdma_mask = 0x06, /* mwdma1-2 */
#else
.mwdma_mask = 0x00, /* mwdma broken */
#endif
.udma_mask = ATA_UDMA_MASK_40C, /* FIXME: cbl det */
.port_ops = &piix_pata_ops,
},
......@@ -191,8 +190,9 @@ static struct ata_port_info piix_port_info[] = {
.sht = &piix_sht,
.host_flags = ATA_FLAG_SATA | ATA_FLAG_SRST |
PIIX_FLAG_COMBINED | PIIX_FLAG_CHECKINTR,
.pio_mask = 0x03, /* pio3-4 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 */
.port_ops = &piix_sata_ops,
},
......@@ -200,7 +200,12 @@ static struct ata_port_info piix_port_info[] = {
{
.sht = &piix_sht,
.host_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
.pio_mask = 0x03, /* pio3-4 */
.pio_mask = 0x1f, /* pio0-4 */
#if 0
.mwdma_mask = 0x06, /* mwdma1-2 */
#else
.mwdma_mask = 0x00, /* mwdma broken */
#endif
.udma_mask = ATA_UDMA_MASK_40C, /* FIXME: cbl det */
.port_ops = &piix_pata_ops,
},
......@@ -211,8 +216,21 @@ static struct ata_port_info piix_port_info[] = {
.host_flags = ATA_FLAG_SATA | ATA_FLAG_SRST |
PIIX_FLAG_COMBINED | PIIX_FLAG_CHECKINTR |
ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x03, /* pio3-4 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 */
.port_ops = &piix_sata_ops,
},
/* ich6_sata_rm */
{
.sht = &piix_sht,
.host_flags = ATA_FLAG_SATA | ATA_FLAG_SRST |
PIIX_FLAG_COMBINED | PIIX_FLAG_CHECKINTR |
ATA_FLAG_SLAVE_POSS | PIIX_FLAG_AHCI,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 */
.port_ops = &piix_sata_ops,
},
};
......@@ -368,11 +386,11 @@ static void piix_sata_phy_reset(struct ata_port *ap)
* None (inherited from caller).
*/
static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev,
unsigned int pio)
static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev)
{
unsigned int pio = adev->pio_mode;
struct pci_dev *dev = ap->host_set->pdev;
unsigned int is_slave = (adev->flags & ATA_DFLAG_MASTER) ? 0 : 1;
unsigned int is_slave = (adev->devno != 0);
unsigned int master_port= ap->port_no ? 0x42 : 0x40;
unsigned int slave_port = 0x44;
u16 master_data;
......@@ -409,7 +427,7 @@ static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev,
}
/**
* piix_set_udmamode - Initialize host controller PATA PIO timings
* piix_set_dmamode - Initialize host controller PATA PIO timings
* @ap: Port whose timings we are configuring
* @adev: um
* @udma: udma mode, 0 - 6
......@@ -420,9 +438,9 @@ static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev,
* None (inherited from caller).
*/
static void piix_set_udmamode (struct ata_port *ap, struct ata_device *adev,
unsigned int udma)
static void piix_set_dmamode (struct ata_port *ap, struct ata_device *adev)
{
unsigned int udma = adev->dma_mode; /* FIXME: MWDMA too */
struct pci_dev *dev = ap->host_set->pdev;
u8 maslave = ap->port_no ? 0x42 : 0x40;
u8 speed = udma;
......@@ -452,25 +470,38 @@ static void piix_set_udmamode (struct ata_port *ap, struct ata_device *adev,
case XFER_UDMA_3:
case XFER_UDMA_1: u_speed = 1 << (drive_dn * 4); break;
case XFER_UDMA_0: u_speed = 0 << (drive_dn * 4); break;
case XFER_MW_DMA_2:
case XFER_MW_DMA_1: break;
default:
BUG();
return;
}
if (!(reg48 & u_flag))
pci_write_config_byte(dev, 0x48, reg48 | u_flag);
if (speed == XFER_UDMA_5) {
pci_write_config_byte(dev, 0x55, (u8) reg55|w_flag);
if (speed >= XFER_UDMA_0) {
if (!(reg48 & u_flag))
pci_write_config_byte(dev, 0x48, reg48 | u_flag);
if (speed == XFER_UDMA_5) {
pci_write_config_byte(dev, 0x55, (u8) reg55|w_flag);
} else {
pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
}
if ((reg4a & a_speed) != u_speed)
pci_write_config_word(dev, 0x4a, (reg4a & ~a_speed) | u_speed);
if (speed > XFER_UDMA_2) {
if (!(reg54 & v_flag))
pci_write_config_byte(dev, 0x54, reg54 | v_flag);
} else
pci_write_config_byte(dev, 0x54, reg54 & ~v_flag);
} else {
pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
if (reg48 & u_flag)
pci_write_config_byte(dev, 0x48, reg48 & ~u_flag);
if (reg4a & a_speed)
pci_write_config_word(dev, 0x4a, reg4a & ~a_speed);
if (reg54 & v_flag)
pci_write_config_byte(dev, 0x54, reg54 & ~v_flag);
if (reg55 & w_flag)
pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
}
if ((reg4a & a_speed) != u_speed)
pci_write_config_word(dev, 0x4a, (reg4a & ~a_speed) | u_speed);
if (speed > XFER_UDMA_2) {
if (!(reg54 & v_flag))
pci_write_config_byte(dev, 0x54, reg54 | v_flag);
} else
pci_write_config_byte(dev, 0x54, reg54 & ~v_flag);
}
/* move to PCI layer, integrate w/ MSI stuff */
......@@ -485,6 +516,42 @@ static void pci_enable_intx(struct pci_dev *pdev)
}
}
#define AHCI_PCI_BAR 5
#define AHCI_GLOBAL_CTL 0x04
#define AHCI_ENABLE (1 << 31)
static int piix_disable_ahci(struct pci_dev *pdev)
{
void *mmio;
unsigned long addr;
u32 tmp;
int rc = 0;
/* BUG: pci_enable_device has not yet been called. This
* works because this device is usually set up by BIOS.
*/
addr = pci_resource_start(pdev, AHCI_PCI_BAR);
if (!addr || !pci_resource_len(pdev, AHCI_PCI_BAR))
return 0;
mmio = ioremap(addr, 64);
if (!mmio)
return -ENOMEM;
tmp = readl(mmio + AHCI_GLOBAL_CTL);
if (tmp & AHCI_ENABLE) {
tmp &= ~AHCI_ENABLE;
writel(tmp, mmio + AHCI_GLOBAL_CTL);
tmp = readl(mmio + AHCI_GLOBAL_CTL);
if (tmp & AHCI_ENABLE)
rc = -EIO;
}
iounmap(mmio);
return rc;
}
/**
* piix_init_one - Register PIIX ATA PCI device with kernel services
* @pdev: PCI device to register
......@@ -517,6 +584,12 @@ static int piix_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
port_info[0] = &piix_port_info[ent->driver_data];
port_info[1] = NULL;
if (port_info[0]->host_flags & PIIX_FLAG_AHCI) {
int rc = piix_disable_ahci(pdev);
if (rc)
return rc;
}
if (port_info[0]->host_flags & PIIX_FLAG_COMBINED) {
u8 tmp;
pci_read_config_byte(pdev, ICH5_PMR, &tmp);
......
drivers/scsi/libata-core.c
View file @ e4babc07
......@@ -50,11 +50,14 @@ static unsigned int ata_busy_sleep (struct ata_port *ap,
unsigned long tmout_pat,
unsigned long tmout);
static void __ata_dev_select (struct ata_port *ap, unsigned int device);
static void ata_host_set_pio(struct ata_port *ap);
static void ata_host_set_udma(struct ata_port *ap);
static void ata_dev_set_pio(struct ata_port *ap, unsigned int device);
static void ata_dev_set_udma(struct ata_port *ap, unsigned int device);
static void ata_set_mode(struct ata_port *ap);
static void ata_dev_set_xfermode(struct ata_port *ap, struct ata_device *dev);
static unsigned int ata_get_mode_mask(struct ata_port *ap, int shift);
static int fgb(u32 bitmap);
static int ata_choose_xfer_mode(struct ata_port *ap,
u8 *xfer_mode_out,
unsigned int *xfer_shift_out);
static int ata_qc_complete_noop(struct ata_queued_cmd *qc, u8 drv_stat);
static unsigned int ata_unique_id = 1;
static struct workqueue_struct *ata_wq;
......@@ -524,7 +527,7 @@ static void ata_dev_set_protocol(struct ata_device *dev)
dev->write_cmd = (cmd >> 8) & 0xff;
}
static const char * udma_str[] = {
static const char * xfer_mode_str[] = {
"UDMA/16",
"UDMA/25",
"UDMA/33",
......@@ -533,6 +536,14 @@ static const char * udma_str[] = {
"UDMA/100",
"UDMA/133",
"UDMA7",
"MWDMA0",
"MWDMA1",
"MWDMA2",
"PIO0",
"PIO1",
"PIO2",
"PIO3",
"PIO4",
};
/**
......@@ -550,16 +561,24 @@ static const char * udma_str[] = {
* @udma_mask, or the constant C string "<n/a>".
*/
static const char *ata_udma_string(unsigned int udma_mask)
static const char *ata_mode_string(unsigned int mask)
{
int i;
for (i = 7; i >= 0; i--) {
if (udma_mask & (1 << i))
return udma_str[i];
}
for (i = 7; i >= 0; i--)
if (mask & (1 << i))
goto out;
for (i = ATA_SHIFT_MWDMA + 2; i >= ATA_SHIFT_MWDMA; i--)
if (mask & (1 << i))
goto out;
for (i = ATA_SHIFT_PIO + 4; i >= ATA_SHIFT_PIO; i--)
if (mask & (1 << i))
goto out;
return "<n/a>";
out:
return xfer_mode_str[i];
}
/**
......@@ -930,10 +949,14 @@ static void ata_dev_identify(struct ata_port *ap, unsigned int device)
{
struct ata_device *dev = &ap->device[device];
unsigned int i;
u16 tmp, udma_modes;
u16 tmp;
unsigned long xfer_modes;
u8 status;
struct ata_taskfile tf;
unsigned int using_edd;
DECLARE_COMPLETION(wait);
struct ata_queued_cmd *qc;
unsigned long flags;
int rc;
if (!ata_dev_present(dev)) {
DPRINTK("ENTER/EXIT (host %u, dev %u) -- nodev\n",
......@@ -953,27 +976,34 @@ static void ata_dev_identify(struct ata_port *ap, unsigned int device)
ata_dev_select(ap, device, 1, 1); /* select device 0/1 */
retry:
ata_tf_init(ap, &tf, device);
tf.ctl |= ATA_NIEN;
tf.protocol = ATA_PROT_PIO;
qc = ata_qc_new_init(ap, dev);
BUG_ON(qc == NULL);
ata_sg_init_one(qc, dev->id, sizeof(dev->id));
qc->pci_dma_dir = PCI_DMA_FROMDEVICE;
qc->tf.protocol = ATA_PROT_PIO;
qc->nsect = 1;
retry:
if (dev->class == ATA_DEV_ATA) {
tf.command = ATA_CMD_ID_ATA;
qc->tf.command = ATA_CMD_ID_ATA;
DPRINTK("do ATA identify\n");
} else {
tf.command = ATA_CMD_ID_ATAPI;
qc->tf.command = ATA_CMD_ID_ATAPI;
DPRINTK("do ATAPI identify\n");
}
ata_tf_to_host(ap, &tf);
qc->waiting = &wait;
qc->complete_fn = ata_qc_complete_noop;
/* crazy ATAPI devices... */
if (dev->class == ATA_DEV_ATAPI)
msleep(150);
spin_lock_irqsave(&ap->host_set->lock, flags);
rc = ata_qc_issue(qc);
spin_unlock_irqrestore(&ap->host_set->lock, flags);
if (ata_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT))
if (rc)
goto err_out;
else
wait_for_completion(&wait);
status = ata_chk_status(ap);
if (status & ATA_ERR) {
......@@ -988,45 +1018,20 @@ static void ata_dev_identify(struct ata_port *ap, unsigned int device)
* ATA software reset (SRST, the default) does not appear
* to have this problem.
*/
if ((using_edd) && (tf.command == ATA_CMD_ID_ATA)) {
if ((using_edd) && (qc->tf.command == ATA_CMD_ID_ATA)) {
u8 err = ata_chk_err(ap);
if (err & ATA_ABORTED) {
dev->class = ATA_DEV_ATAPI;
qc->cursg = 0;
qc->cursg_ofs = 0;
qc->cursect = 0;
qc->nsect = 1;
goto retry;
}
}
goto err_out;
}
/* make sure we have BSY=0, DRQ=1 */
if ((status & ATA_DRQ) == 0) {
printk(KERN_WARNING "ata%u: dev %u (ATA%s?) not returning id page (0x%x)\n",
ap->id, device,
dev->class == ATA_DEV_ATA ? "" : "PI",
status);
goto err_out;
}
/* read IDENTIFY [X] DEVICE page */
if (ap->flags & ATA_FLAG_MMIO) {
for (i = 0; i < ATA_ID_WORDS; i++)
dev->id[i] = readw((void *)ap->ioaddr.data_addr);
} else
for (i = 0; i < ATA_ID_WORDS; i++)
dev->id[i] = inw(ap->ioaddr.data_addr);
/* wait for host_idle */
status = ata_wait_idle(ap);
if (status & (ATA_BUSY | ATA_DRQ)) {
printk(KERN_WARNING "ata%u: dev %u (ATA%s?) error after id page (0x%x)\n",
ap->id, device,
dev->class == ATA_DEV_ATA ? "" : "PI",
status);
goto err_out;
}
ata_irq_on(ap); /* re-enable interrupts */
/* print device capabilities */
printk(KERN_DEBUG "ata%u: dev %u cfg "
"49:%04x 82:%04x 83:%04x 84:%04x 85:%04x 86:%04x 87:%04x 88:%04x\n",
......@@ -1045,12 +1050,13 @@ static void ata_dev_identify(struct ata_port *ap, unsigned int device)
goto err_out_nosup;
}
/* we require UDMA support */
udma_modes =
tmp = dev->id[ATA_ID_UDMA_MODES];
if ((tmp & 0xff) == 0) {
printk(KERN_DEBUG "ata%u: no udma\n", ap->id);
goto err_out_nosup;
/* quick-n-dirty find max transfer mode; for printk only */
xfer_modes = dev->id[ATA_ID_UDMA_MODES];
if (!xfer_modes)
xfer_modes = (dev->id[ATA_ID_MWDMA_MODES]) << ATA_SHIFT_MWDMA;
if (!xfer_modes) {
xfer_modes = (dev->id[ATA_ID_PIO_MODES]) << (ATA_SHIFT_PIO + 3);
xfer_modes |= (0x7 << ATA_SHIFT_PIO);
}
ata_dump_id(dev);
......@@ -1083,7 +1089,7 @@ static void ata_dev_identify(struct ata_port *ap, unsigned int device)
/* print device info to dmesg */
printk(KERN_INFO "ata%u: dev %u ATA, max %s, %Lu sectors:%s\n",
ap->id, device,
ata_udma_string(udma_modes),
ata_mode_string(xfer_modes),
(unsigned long long)dev->n_sectors,
dev->flags & ATA_DFLAG_LBA48 ? " lba48" : "");
}
......@@ -1093,15 +1099,18 @@ static void ata_dev_identify(struct ata_port *ap, unsigned int device)
if (ata_id_is_ata(dev)) /* sanity check */
goto err_out_nosup;
/* see if 16-byte commands supported */
tmp = dev->id[0] & 0x3;
if (tmp == 1)
ap->host->max_cmd_len = 16;
rc = atapi_cdb_len(dev->id);
if ((rc < 12) || (rc > ATAPI_CDB_LEN)) {
printk(KERN_WARNING "ata%u: unsupported CDB len\n", ap->id);
goto err_out_nosup;
}
ap->cdb_len = (unsigned int) rc;
ap->host->max_cmd_len = (unsigned char) ap->cdb_len;
/* print device info to dmesg */
printk(KERN_INFO "ata%u: dev %u ATAPI, max %s\n",
ap->id, device,
ata_udma_string(udma_modes));
ata_mode_string(xfer_modes));
}
DPRINTK("EXIT, drv_stat = 0x%x\n", ata_chk_status(ap));
......@@ -1232,6 +1241,101 @@ void ata_port_disable(struct ata_port *ap)
ap->flags |= ATA_FLAG_PORT_DISABLED;
}
static struct {
unsigned int shift;
u8 base;
} xfer_mode_classes[] = {
{ ATA_SHIFT_UDMA, XFER_UDMA_0 },
{ ATA_SHIFT_MWDMA, XFER_MW_DMA_0 },
{ ATA_SHIFT_PIO, XFER_PIO_0 },
};
static inline u8 base_from_shift(unsigned int shift)
{
int i;
for (i = 0; i < ARRAY_SIZE(xfer_mode_classes); i++)
if (xfer_mode_classes[i].shift == shift)
return xfer_mode_classes[i].base;
return 0xff;
}
static void ata_dev_set_mode(struct ata_port *ap, struct ata_device *dev)
{
int ofs, idx;
u8 base;
if (!ata_dev_present(dev) || (ap->flags & ATA_FLAG_PORT_DISABLED))
return;
if (dev->xfer_shift == ATA_SHIFT_PIO)
dev->flags |= ATA_DFLAG_PIO;
ata_dev_set_xfermode(ap, dev);
base = base_from_shift(dev->xfer_shift);
ofs = dev->xfer_mode - base;
idx = ofs + dev->xfer_shift;
WARN_ON(idx >= ARRAY_SIZE(xfer_mode_str));
DPRINTK("idx=%d xfer_shift=%u, xfer_mode=0x%x, base=0x%x, offset=%d\n",
idx, dev->xfer_shift, (int)dev->xfer_mode, (int)base, ofs);
printk(KERN_INFO "ata%u: dev %u configured for %s\n",
ap->id, dev->devno, xfer_mode_str[idx]);
}
static int ata_host_set_pio(struct ata_port *ap)
{
unsigned int mask;
int x, i;
u8 base, xfer_mode;
mask = ata_get_mode_mask(ap, ATA_SHIFT_PIO);
x = fgb(mask);
if (x < 0) {
printk(KERN_WARNING "ata%u: no PIO support\n", ap->id);
return -1;
}
base = base_from_shift(ATA_SHIFT_PIO);
xfer_mode = base + x;
DPRINTK("base 0x%x xfer_mode 0x%x mask 0x%x x %d\n",
(int)base, (int)xfer_mode, mask, x);
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
if (ata_dev_present(dev)) {
dev->pio_mode = xfer_mode;
dev->xfer_mode = xfer_mode;
dev->xfer_shift = ATA_SHIFT_PIO;
if (ap->ops->set_piomode)
ap->ops->set_piomode(ap, dev);
}
}
return 0;
}
static void ata_host_set_dma(struct ata_port *ap, u8 xfer_mode,
unsigned int xfer_shift)
{
int i;
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
if (ata_dev_present(dev)) {
dev->dma_mode = xfer_mode;
dev->xfer_mode = xfer_mode;
dev->xfer_shift = xfer_shift;
if (ap->ops->set_dmamode)
ap->ops->set_dmamode(ap, dev);
}
}
}
/**
* ata_set_mode - Program timings and issue SET FEATURES - XFER
* @ap: port on which timings will be programmed
......@@ -1241,29 +1345,28 @@ void ata_port_disable(struct ata_port *ap)
*/
static void ata_set_mode(struct ata_port *ap)
{
unsigned int force_pio, i;
unsigned int i, xfer_shift;
u8 xfer_mode;
int rc;
ata_host_set_pio(ap);
if (ap->flags & ATA_FLAG_PORT_DISABLED)
return;
/* step 1: always set host PIO timings */
rc = ata_host_set_pio(ap);
if (rc)
goto err_out;
ata_host_set_udma(ap);
if (ap->flags & ATA_FLAG_PORT_DISABLED)
return;
/* step 2: choose the best data xfer mode */
xfer_mode = xfer_shift = 0;
rc = ata_choose_xfer_mode(ap, &xfer_mode, &xfer_shift);
if (rc)
goto err_out;
#ifdef ATA_FORCE_PIO
force_pio = 1;
#else
force_pio = 0;
#endif
/* step 3: if that xfer mode isn't PIO, set host DMA timings */
if (xfer_shift != ATA_SHIFT_PIO)
ata_host_set_dma(ap, xfer_mode, xfer_shift);
if (force_pio) {
ata_dev_set_pio(ap, 0);
ata_dev_set_pio(ap, 1);
} else {
ata_dev_set_udma(ap, 0);
ata_dev_set_udma(ap, 1);
}
/* step 4: update devices' xfer mode */
ata_dev_set_mode(ap, &ap->device[0]);
ata_dev_set_mode(ap, &ap->device[1]);
if (ap->flags & ATA_FLAG_PORT_DISABLED)
return;
......@@ -1275,6 +1378,11 @@ static void ata_set_mode(struct ata_port *ap)
struct ata_device *dev = &ap->device[i];
ata_dev_set_protocol(dev);
}
return;
err_out:
ata_port_disable(ap);
}
/**
......@@ -1536,116 +1644,102 @@ void ata_bus_reset(struct ata_port *ap)
DPRINTK("EXIT\n");
}
/**
* ata_host_set_pio -
* @ap:
*
* LOCKING:
*/
static void ata_host_set_pio(struct ata_port *ap)
static unsigned int ata_get_mode_mask(struct ata_port *ap, int shift)
{
struct ata_device *master, *slave;
unsigned int pio, i;
u16 mask;
unsigned int mask;
master = &ap->device[0];
slave = &ap->device[1];
assert (ata_dev_present(master) || ata_dev_present(slave));
mask = ap->pio_mask;
if (ata_dev_present(master))
mask &= (master->id[ATA_ID_PIO_MODES] & 0x03);
if (ata_dev_present(slave))
mask &= (slave->id[ATA_ID_PIO_MODES] & 0x03);
/* require pio mode 3 or 4 support for host and all devices */
if (mask == 0) {
printk(KERN_WARNING "ata%u: no PIO3/4 support, ignoring\n",
ap->id);
goto err_out;
if (shift == ATA_SHIFT_UDMA) {
mask = ap->udma_mask;
if (ata_dev_present(master))
mask &= (master->id[ATA_ID_UDMA_MODES] & 0xff);
if (ata_dev_present(slave))
mask &= (slave->id[ATA_ID_UDMA_MODES] & 0xff);
}
else if (shift == ATA_SHIFT_MWDMA) {
mask = ap->mwdma_mask;
if (ata_dev_present(master))
mask &= (master->id[ATA_ID_MWDMA_MODES] & 0x07);
if (ata_dev_present(slave))
mask &= (slave->id[ATA_ID_MWDMA_MODES] & 0x07);
}
else if (shift == ATA_SHIFT_PIO) {
mask = ap->pio_mask;
if (ata_dev_present(master)) {
/* spec doesn't return explicit support for
* PIO0-2, so we fake it
*/
u16 tmp_mode = master->id[ATA_ID_PIO_MODES] & 0x03;
tmp_mode <<= 3;
tmp_mode |= 0x7;
mask &= tmp_mode;
}
if (ata_dev_present(slave)) {
/* spec doesn't return explicit support for
* PIO0-2, so we fake it
*/
u16 tmp_mode = slave->id[ATA_ID_PIO_MODES] & 0x03;
tmp_mode <<= 3;
tmp_mode |= 0x7;
mask &= tmp_mode;
}
}
else {
mask = 0xffffffff; /* shut up compiler warning */
BUG();
}
pio = (mask & ATA_ID_PIO4) ? 4 : 3;
for (i = 0; i < ATA_MAX_DEVICES; i++)
if (ata_dev_present(&ap->device[i])) {
ap->device[i].pio_mode = (pio == 3) ?
XFER_PIO_3 : XFER_PIO_4;
if (ap->ops->set_piomode)
ap->ops->set_piomode(ap, &ap->device[i], pio);
}
return mask;
}
return;
/* find greatest bit */
static int fgb(u32 bitmap)
{
unsigned int i;
int x = -1;
err_out:
ap->ops->port_disable(ap);
for (i = 0; i < 32; i++)
if (bitmap & (1 << i))
x = i;
return x;
}
/**
* ata_host_set_udma -
* ata_choose_xfer_mode -
* @ap:
*
* LOCKING:
*
* RETURNS:
* Zero on success, negative on error.
*/
static void ata_host_set_udma(struct ata_port *ap)
static int ata_choose_xfer_mode(struct ata_port *ap,
u8 *xfer_mode_out,
unsigned int *xfer_shift_out)
{
struct ata_device *master, *slave;
u16 mask;
unsigned int i, j;
int udma_mode = -1;
unsigned int mask, shift;
int x, i;
master = &ap->device[0];
slave = &ap->device[1];
for (i = 0; i < ARRAY_SIZE(xfer_mode_classes); i++) {
shift = xfer_mode_classes[i].shift;
mask = ata_get_mode_mask(ap, shift);
assert (ata_dev_present(master) || ata_dev_present(slave));
assert ((ap->flags & ATA_FLAG_PORT_DISABLED) == 0);
DPRINTK("udma masks: host 0x%X, master 0x%X, slave 0x%X\n",
ap->udma_mask,
(!ata_dev_present(master)) ? 0xff :
(master->id[ATA_ID_UDMA_MODES] & 0xff),
(!ata_dev_present(slave)) ? 0xff :
(slave->id[ATA_ID_UDMA_MODES] & 0xff));
mask = ap->udma_mask;
if (ata_dev_present(master))
mask &= (master->id[ATA_ID_UDMA_MODES] & 0xff);
if (ata_dev_present(slave))
mask &= (slave->id[ATA_ID_UDMA_MODES] & 0xff);
i = XFER_UDMA_7;
while (i >= XFER_UDMA_0) {
j = i - XFER_UDMA_0;
DPRINTK("mask 0x%X i 0x%X j %u\n", mask, i, j);
if (mask & (1 << j)) {
udma_mode = i;
break;
x = fgb(mask);
if (x >= 0) {
*xfer_mode_out = xfer_mode_classes[i].base + x;
*xfer_shift_out = shift;
return 0;
}
i--;
}
/* require udma for host and all attached devices */
if (udma_mode < 0) {
printk(KERN_WARNING "ata%u: no UltraDMA support, ignoring\n",
ap->id);
goto err_out;
}
for (i = 0; i < ATA_MAX_DEVICES; i++)
if (ata_dev_present(&ap->device[i])) {
ap->device[i].udma_mode = udma_mode;
if (ap->ops->set_udmamode)
ap->ops->set_udmamode(ap, &ap->device[i],
udma_mode);
}
return;
err_out:
ap->ops->port_disable(ap);
return -1;
}
/**
......@@ -1658,88 +1752,38 @@ static void ata_host_set_udma(struct ata_port *ap)
static void ata_dev_set_xfermode(struct ata_port *ap, struct ata_device *dev)
{
struct ata_taskfile tf;
DECLARE_COMPLETION(wait);
struct ata_queued_cmd *qc;
int rc;
unsigned long flags;
/* set up set-features taskfile */
DPRINTK("set features - xfer mode\n");
ata_tf_init(ap, &tf, dev->devno);
tf.ctl |= ATA_NIEN;
tf.command = ATA_CMD_SET_FEATURES;
tf.feature = SETFEATURES_XFER;
tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
tf.protocol = ATA_PROT_NODATA;
if (dev->flags & ATA_DFLAG_PIO)
tf.nsect = dev->pio_mode;
else
tf.nsect = dev->udma_mode;
/* do bus reset */
ata_tf_to_host(ap, &tf);
qc = ata_qc_new_init(ap, dev);
BUG_ON(qc == NULL);
/* crazy ATAPI devices... */
if (dev->class == ATA_DEV_ATAPI)
msleep(150);
qc->tf.command = ATA_CMD_SET_FEATURES;
qc->tf.feature = SETFEATURES_XFER;
qc->tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
qc->tf.protocol = ATA_PROT_NODATA;
qc->tf.nsect = dev->xfer_mode;
ata_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT);
qc->waiting = &wait;
qc->complete_fn = ata_qc_complete_noop;
ata_irq_on(ap); /* re-enable interrupts */
spin_lock_irqsave(&ap->host_set->lock, flags);
rc = ata_qc_issue(qc);
spin_unlock_irqrestore(&ap->host_set->lock, flags);
ata_wait_idle(ap);
if (rc)
ata_port_disable(ap);
else
wait_for_completion(&wait);
DPRINTK("EXIT\n");
}
/**
* ata_dev_set_udma - Set ATA device's transfer mode to Ultra DMA
* @ap: Port associated with device @dev
* @device: Device whose mode will be set
*
* LOCKING:
*/
static void ata_dev_set_udma(struct ata_port *ap, unsigned int device)
{
struct ata_device *dev = &ap->device[device];
if (!ata_dev_present(dev) || (ap->flags & ATA_FLAG_PORT_DISABLED))
return;
ata_dev_set_xfermode(ap, dev);
assert((dev->udma_mode >= XFER_UDMA_0) &&
(dev->udma_mode <= XFER_UDMA_7));
printk(KERN_INFO "ata%u: dev %u configured for %s\n",
ap->id, device,
udma_str[dev->udma_mode - XFER_UDMA_0]);
}
/**
* ata_dev_set_pio - Set ATA device's transfer mode to PIO
* @ap: Port associated with device @dev
* @device: Device whose mode will be set
*
* LOCKING:
*/
static void ata_dev_set_pio(struct ata_port *ap, unsigned int device)
{
struct ata_device *dev = &ap->device[device];
if (!ata_dev_present(dev) || (ap->flags & ATA_FLAG_PORT_DISABLED))
return;
/* force PIO mode */
dev->flags |= ATA_DFLAG_PIO;
ata_dev_set_xfermode(ap, dev);
assert((dev->pio_mode >= XFER_PIO_3) &&
(dev->pio_mode <= XFER_PIO_4));
printk(KERN_INFO "ata%u: dev %u configured for PIO%c\n",
ap->id, device,
dev->pio_mode == 3 ? '3' : '4');
}
/**
* ata_sg_clean -
* @qc:
......@@ -2003,7 +2047,7 @@ static void ata_pio_complete (struct ata_port *ap)
}
drv_stat = ata_wait_idle(ap);
if (drv_stat & (ATA_BUSY | ATA_DRQ)) {
if (!ata_ok(drv_stat)) {
ap->pio_task_state = PIO_ST_ERR;
return;
}
......@@ -2018,6 +2062,43 @@ static void ata_pio_complete (struct ata_port *ap)
ata_qc_complete(qc, drv_stat);
}
static void ata_mmio_data_xfer(struct ata_port *ap, unsigned char *buf,
unsigned int buflen, int write_data)
{
unsigned int i;
unsigned int words = buflen >> 1;
u16 *buf16 = (u16 *) buf;
void *mmio = (void *)ap->ioaddr.data_addr;
if (write_data) {
for (i = 0; i < words; i++)
writew(buf16[i], mmio);
} else {
for (i = 0; i < words; i++)
buf16[i] = readw(mmio);
}
}
static void ata_pio_data_xfer(struct ata_port *ap, unsigned char *buf,
unsigned int buflen, int write_data)
{
unsigned int dwords = buflen >> 2;
if (write_data)
outsl(ap->ioaddr.data_addr, buf, dwords);
else
insl(ap->ioaddr.data_addr, buf, dwords);
}
static void ata_data_xfer(struct ata_port *ap, unsigned char *buf,
unsigned int buflen, int do_write)
{
if (ap->flags & ATA_FLAG_MMIO)
ata_mmio_data_xfer(ap, buf, buflen, do_write);
else
ata_pio_data_xfer(ap, buf, buflen, do_write);
}
/**
* ata_pio_sector -
* @ap:
......@@ -2032,6 +2113,7 @@ static void ata_pio_sector(struct ata_port *ap)
struct page *page;
unsigned char *buf;
u8 status;
int do_write;
/*
* This is purely hueristic. This is a fast path.
......@@ -2073,26 +2155,41 @@ static void ata_pio_sector(struct ata_port *ap)
qc->cursect++;
qc->cursg_ofs++;
if (qc->flags & ATA_QCFLAG_SG)
if ((qc->cursg_ofs * ATA_SECT_SIZE) == sg_dma_len(&sg[qc->cursg])) {
qc->cursg++;
qc->cursg_ofs = 0;
}
if ((qc->cursg_ofs * ATA_SECT_SIZE) == sg_dma_len(&sg[qc->cursg])) {
qc->cursg++;
qc->cursg_ofs = 0;
}
DPRINTK("data %s, drv_stat 0x%X\n",
qc->tf.flags & ATA_TFLAG_WRITE ? "write" : "read",
status);
/* do the actual data transfer */
/* FIXME: mmio-ize */
if (qc->tf.flags & ATA_TFLAG_WRITE)
outsl(ap->ioaddr.data_addr, buf, ATA_SECT_DWORDS);
else
insl(ap->ioaddr.data_addr, buf, ATA_SECT_DWORDS);
do_write = (qc->tf.flags & ATA_TFLAG_WRITE);
ata_data_xfer(ap, buf, ATA_SECT_SIZE, do_write);
kunmap(page);
}
static void ata_pio_error(struct ata_port *ap)
{
struct ata_queued_cmd *qc;
u8 drv_stat;
qc = ata_qc_from_tag(ap, ap->active_tag);
assert(qc != NULL);
drv_stat = ata_chk_status(ap);
printk(KERN_WARNING "ata%u: PIO error, drv_stat 0x%x\n",
ap->id, drv_stat);
ap->pio_task_state = PIO_ST_IDLE;
ata_irq_on(ap);
ata_qc_complete(qc, drv_stat | ATA_ERR);
}
static void ata_pio_task(void *_data)
{
struct ata_port *ap = _data;
......@@ -2113,15 +2210,8 @@ static void ata_pio_task(void *_data)
break;
case PIO_ST_TMOUT:
printk(KERN_ERR "ata%d: FIXME: PIO_ST_TMOUT\n", /* FIXME */
ap->id);
timeout = 11 * HZ;
break;
case PIO_ST_ERR:
printk(KERN_ERR "ata%d: FIXME: PIO_ST_ERR\n", /* FIXME */
ap->id);
timeout = 11 * HZ;
ata_pio_error(ap);
break;
}
......@@ -2180,7 +2270,6 @@ static void ata_qc_timeout(struct ata_queued_cmd *qc)
/* fall through */
case ATA_PROT_NODATA:
default:
ata_altstatus(ap);
drv_stat = ata_chk_status(ap);
......@@ -2287,8 +2376,6 @@ struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
ata_tf_init(ap, &qc->tf, dev->devno);
if (likely((dev->flags & ATA_DFLAG_PIO) == 0))
qc->flags |= ATA_QCFLAG_DMA;
if (dev->flags & ATA_DFLAG_LBA48)
qc->tf.flags |= ATA_TFLAG_LBA48;
}
......@@ -2296,6 +2383,11 @@ struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
return qc;
}
static int ata_qc_complete_noop(struct ata_queued_cmd *qc, u8 drv_stat)
{
return 0;
}
/**
* ata_qc_complete - Complete an active ATA command
* @qc: Command to complete
......@@ -2335,11 +2427,16 @@ void ata_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
do_clear = 1;
}
if (qc->waiting)
complete(qc->waiting);
if (qc->waiting) {
struct completion *waiting = qc->waiting;
qc->waiting = NULL;
complete(waiting);
}
if (likely(do_clear))
clear_bit(tag, &ap->qactive);
VPRINTK("EXIT\n");
}
/**
......@@ -2422,6 +2519,12 @@ int ata_qc_issue_prot(struct ata_queued_cmd *qc)
break;
case ATA_PROT_ATAPI:
ata_qc_set_polling(qc);
ata_tf_to_host_nolock(ap, &qc->tf);
queue_work(ata_wq, &ap->packet_task);
break;
case ATA_PROT_ATAPI_NODATA:
ata_tf_to_host_nolock(ap, &qc->tf);
queue_work(ata_wq, &ap->packet_task);
break;
......@@ -2581,7 +2684,7 @@ inline unsigned int ata_host_intr (struct ata_port *ap,
case ATA_PROT_ATAPI:
/* check status of DMA engine */
host_stat = ata_bmdma_status(ap);
VPRINTK("BUS_DMA (host_stat 0x%X)\n", host_stat);
VPRINTK("ata%u: host_stat 0x%X\n", ap->id, host_stat);
/* if it's not our irq... */
if (!(host_stat & ATA_DMA_INTR))
......@@ -2592,6 +2695,7 @@ inline unsigned int ata_host_intr (struct ata_port *ap,
/* fall through */
case ATA_PROT_ATAPI_NODATA:
case ATA_PROT_NODATA:
/* check altstatus */
status = ata_altstatus(ap);
......@@ -2602,7 +2706,8 @@ inline unsigned int ata_host_intr (struct ata_port *ap,
status = ata_chk_status(ap);
if (unlikely(status & ATA_BUSY))
goto idle_irq;
DPRINTK("BUS_NODATA (dev_stat 0x%X)\n", status);
DPRINTK("ata%u: protocol %d (dev_stat 0x%X)\n",
ap->id, qc->tf.protocol, status);
/* ack bmdma irq events */
ata_bmdma_ack_irq(ap);
......@@ -2701,21 +2806,20 @@ static void atapi_packet_task(void *_data)
/* make sure DRQ is set */
status = ata_chk_status(ap);
if ((status & ATA_DRQ) == 0)
if ((status & (ATA_BUSY | ATA_DRQ)) != ATA_DRQ)
goto err_out;
/* send SCSI cdb */
/* FIXME: mmio-ize */
DPRINTK("send cdb\n");
outsl(ap->ioaddr.data_addr,
qc->scsicmd->cmnd, ap->host->max_cmd_len / 4);
assert(ap->cdb_len >= 12);
ata_data_xfer(ap, qc->cdb, ap->cdb_len, 1);
/* if we are DMA'ing, irq handler takes over from here */
if (qc->tf.protocol == ATA_PROT_ATAPI_DMA)
ap->ops->bmdma_start(qc); /* initiate bmdma */
/* non-data commands are also handled via irq */
else if (qc->scsicmd->sc_data_direction == SCSI_DATA_NONE) {
else if (qc->tf.protocol == ATA_PROT_ATAPI_NODATA) {
/* do nothing */
}
......@@ -2804,11 +2908,11 @@ static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host,
ap->host_set = host_set;
ap->port_no = port_no;
ap->pio_mask = ent->pio_mask;
ap->mwdma_mask = ent->mwdma_mask;
ap->udma_mask = ent->udma_mask;
ap->flags |= ent->host_flags;
ap->ops = ent->port_ops;
ap->cbl = ATA_CBL_NONE;
ap->device[0].flags = ATA_DFLAG_MASTER;
ap->active_tag = ATA_TAG_POISON;
ap->last_ctl = 0xFF;
......@@ -2901,19 +3005,23 @@ int ata_device_add(struct ata_probe_ent *ent)
/* register each port bound to this device */
for (i = 0; i < ent->n_ports; i++) {
struct ata_port *ap;
unsigned long xfer_mode_mask;
ap = ata_host_add(ent, host_set, i);
if (!ap)
goto err_out;
host_set->ports[i] = ap;
xfer_mode_mask =(ap->udma_mask << ATA_SHIFT_UDMA) |
(ap->mwdma_mask << ATA_SHIFT_MWDMA) |
(ap->pio_mask << ATA_SHIFT_PIO);
/* print per-port info to dmesg */
printk(KERN_INFO "ata%u: %cATA max %s cmd 0x%lX ctl 0x%lX "
"bmdma 0x%lX irq %lu\n",
ap->id,
ap->flags & ATA_FLAG_SATA ? 'S' : 'P',
ata_udma_string(ent->udma_mask),
ata_mode_string(xfer_mode_mask),
ap->ioaddr.cmd_addr,
ap->ioaddr.ctl_addr,
ap->ioaddr.bmdma_addr,
......@@ -3152,6 +3260,7 @@ int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_info,
probe_ent->sht = port0->sht;
probe_ent->host_flags = port0->host_flags;
probe_ent->pio_mask = port0->pio_mask;
probe_ent->mwdma_mask = port0->mwdma_mask;
probe_ent->udma_mask = port0->udma_mask;
probe_ent->port_ops = port0->port_ops;
......@@ -3174,6 +3283,7 @@ int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_info,
probe_ent2->sht = port1->sht;
probe_ent2->host_flags = port1->host_flags;
probe_ent2->pio_mask = port1->pio_mask;
probe_ent2->mwdma_mask = port1->mwdma_mask;
probe_ent2->udma_mask = port1->udma_mask;
probe_ent2->port_ops = port1->port_ops;
} else {
......
drivers/scsi/libata-scsi.c
View file @ e4babc07
......@@ -339,14 +339,10 @@ static int ata_scsi_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
{
struct scsi_cmnd *cmd = qc->scsicmd;
if (unlikely(drv_stat & (ATA_ERR | ATA_BUSY | ATA_DRQ))) {
if (is_atapi_taskfile(&qc->tf))
cmd->result = SAM_STAT_CHECK_CONDITION;
else
ata_to_sense_error(qc);
} else {
if (unlikely(drv_stat & (ATA_ERR | ATA_BUSY | ATA_DRQ)))
ata_to_sense_error(qc);
else
cmd->result = SAM_STAT_GOOD;
}
qc->scsidone(cmd);
......@@ -964,6 +960,31 @@ void ata_scsi_badcmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *), u8
done(cmd);
}
static int atapi_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
{
struct scsi_cmnd *cmd = qc->scsicmd;
if (unlikely(drv_stat & (ATA_ERR | ATA_BUSY | ATA_DRQ)))
cmd->result = SAM_STAT_CHECK_CONDITION;
else {
u8 *scsicmd = cmd->cmnd;
if (scsicmd[0] == INQUIRY) {
u8 *buf = NULL;
unsigned int buflen;
buflen = ata_scsi_rbuf_get(cmd, &buf);
buf[2] = 0x5;
buf[3] = (buf[3] & 0xf0) | 2;
ata_scsi_rbuf_put(cmd);
}
cmd->result = SAM_STAT_GOOD;
}
qc->scsidone(cmd);
return 0;
}
/**
* atapi_xlat - Initialize PACKET taskfile
* @qc: command structure to be initialized
......@@ -979,6 +1000,13 @@ void ata_scsi_badcmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *), u8
static unsigned int atapi_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
{
struct scsi_cmnd *cmd = qc->scsicmd;
struct ata_device *dev = qc->dev;
int using_pio = (dev->flags & ATA_DFLAG_PIO);
int nodata = (cmd->sc_data_direction == SCSI_DATA_NONE);
memcpy(&qc->cdb, scsicmd, qc->ap->cdb_len);
qc->complete_fn = atapi_qc_complete;
qc->tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
if (cmd->sc_data_direction == SCSI_DATA_WRITE) {
......@@ -988,19 +1016,18 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
qc->tf.command = ATA_CMD_PACKET;
/* no data - interrupt-driven */
if (cmd->sc_data_direction == SCSI_DATA_NONE)
qc->tf.protocol = ATA_PROT_ATAPI;
/* PIO data xfer - polling */
else if ((qc->flags & ATA_QCFLAG_DMA) == 0) {
ata_qc_set_polling(qc);
qc->tf.protocol = ATA_PROT_ATAPI;
/* no data, or PIO data xfer */
if (using_pio || nodata) {
if (nodata)
qc->tf.protocol = ATA_PROT_ATAPI_NODATA;
else
qc->tf.protocol = ATA_PROT_ATAPI;
qc->tf.lbam = (8 * 1024) & 0xff;
qc->tf.lbah = (8 * 1024) >> 8;
}
/* DMA data xfer - interrupt-driven */
} else {
/* DMA data xfer */
else {
qc->tf.protocol = ATA_PROT_ATAPI_DMA;
qc->tf.feature |= ATAPI_PKT_DMA;
......
drivers/scsi/sata_nv.c
View file @ e4babc07
......@@ -44,6 +44,7 @@
#define NV_PORTS 2
#define NV_PIO_MASK 0x1f
#define NV_MWDMA_MASK 0x07
#define NV_UDMA_MASK 0x7f
#define NV_PORT0_BMDMA_REG_OFFSET 0x00
#define NV_PORT1_BMDMA_REG_OFFSET 0x08
......@@ -343,6 +344,7 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
probe_ent->irq = pdev->irq;
probe_ent->irq_flags = SA_SHIRQ;
probe_ent->pio_mask = NV_PIO_MASK;
probe_ent->mwdma_mask = NV_MWDMA_MASK;
probe_ent->udma_mask = NV_UDMA_MASK;
probe_ent->port[0].cmd_addr = pci_resource_start(pdev, 0);
......
drivers/scsi/sata_promise.c
View file @ e4babc07
......@@ -74,7 +74,6 @@ struct pdc_port_priv {
static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg);
static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
static void pdc_dma_start(struct ata_queued_cmd *qc);
static irqreturn_t pdc_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
static void pdc_eng_timeout(struct ata_port *ap);
static int pdc_port_start(struct ata_port *ap);
......@@ -83,8 +82,6 @@ static void pdc_phy_reset(struct ata_port *ap);
static void pdc_qc_prep(struct ata_queued_cmd *qc);
static void pdc_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf);
static void pdc_exec_command_mmio(struct ata_port *ap, struct ata_taskfile *tf);
static inline void pdc_dma_complete (struct ata_port *ap,
struct ata_queued_cmd *qc, int have_err);
static void pdc_irq_clear(struct ata_port *ap);
static int pdc_qc_issue_prot(struct ata_queued_cmd *qc);
......@@ -130,7 +127,8 @@ static struct ata_port_info pdc_port_info[] = {
.sht = &pdc_sata_sht,
.host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_SRST | ATA_FLAG_MMIO,
.pio_mask = 0x03, /* pio3-4 */
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
.port_ops = &pdc_sata_ops,
},
......@@ -140,7 +138,8 @@ static struct ata_port_info pdc_port_info[] = {
.sht = &pdc_sata_sht,
.host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_SRST | ATA_FLAG_MMIO,
.pio_mask = 0x03, /* pio3-4 */
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
.port_ops = &pdc_sata_ops,
},
......@@ -269,26 +268,26 @@ static void pdc_qc_prep(struct ata_queued_cmd *qc)
VPRINTK("ENTER\n");
ata_qc_prep(qc);
i = pdc_pkt_header(&qc->tf, qc->ap->prd_dma, qc->dev->devno, pp->pkt);
switch (qc->tf.protocol) {
case ATA_PROT_DMA:
ata_qc_prep(qc);
/* fall through */
if (qc->tf.flags & ATA_TFLAG_LBA48)
i = pdc_prep_lba48(&qc->tf, pp->pkt, i);
else
i = pdc_prep_lba28(&qc->tf, pp->pkt, i);
case ATA_PROT_NODATA:
i = pdc_pkt_header(&qc->tf, qc->ap->prd_dma,
qc->dev->devno, pp->pkt);
pdc_pkt_footer(&qc->tf, pp->pkt, i);
}
if (qc->tf.flags & ATA_TFLAG_LBA48)
i = pdc_prep_lba48(&qc->tf, pp->pkt, i);
else
i = pdc_prep_lba28(&qc->tf, pp->pkt, i);
static inline void pdc_dma_complete (struct ata_port *ap,
struct ata_queued_cmd *qc,
int have_err)
{
u8 err_bit = have_err ? ATA_ERR : 0;
pdc_pkt_footer(&qc->tf, pp->pkt, i);
break;
/* get drive status; clear intr; complete txn */
ata_qc_complete(qc, ata_wait_idle(ap) | err_bit);
default:
break;
}
}
static void pdc_eng_timeout(struct ata_port *ap)
......@@ -315,17 +314,9 @@ static void pdc_eng_timeout(struct ata_port *ap)
switch (qc->tf.protocol) {
case ATA_PROT_DMA:
printk(KERN_ERR "ata%u: DMA timeout\n", ap->id);
ata_qc_complete(qc, ata_wait_idle(ap) | ATA_ERR);
break;
case ATA_PROT_NODATA:
drv_stat = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
printk(KERN_ERR "ata%u: command 0x%x timeout, stat 0x%x\n",
ap->id, qc->tf.command, drv_stat);
ata_qc_complete(qc, drv_stat);
printk(KERN_ERR "ata%u: command timeout\n", ap->id);
ata_qc_complete(qc, ata_wait_idle(ap) | ATA_ERR);
break;
default:
......@@ -358,13 +349,8 @@ static inline unsigned int pdc_host_intr( struct ata_port *ap,
switch (qc->tf.protocol) {
case ATA_PROT_DMA:
pdc_dma_complete(ap, qc, have_err);
handled = 1;
break;
case ATA_PROT_NODATA: /* command completion, but no data xfer */
status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
DPRINTK("BUS_NODATA (drv_stat 0x%X)\n", status);
case ATA_PROT_NODATA:
status = ata_wait_idle(ap);
if (have_err)
status |= ATA_ERR;
ata_qc_complete(qc, status);
......@@ -440,7 +426,7 @@ static irqreturn_t pdc_interrupt (int irq, void *dev_instance, struct pt_regs *r
return IRQ_RETVAL(handled);
}
static inline void pdc_dma_start(struct ata_queued_cmd *qc)
static inline void pdc_packet_start(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct pdc_port_priv *pp = ap->private_data;
......@@ -462,7 +448,8 @@ static int pdc_qc_issue_prot(struct ata_queued_cmd *qc)
{
switch (qc->tf.protocol) {
case ATA_PROT_DMA:
pdc_dma_start(qc);
case ATA_PROT_NODATA:
pdc_packet_start(qc);
return 0;
case ATA_PROT_ATAPI_DMA:
......@@ -478,14 +465,16 @@ static int pdc_qc_issue_prot(struct ata_queued_cmd *qc)
static void pdc_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf)
{
WARN_ON (tf->protocol == ATA_PROT_DMA);
WARN_ON (tf->protocol == ATA_PROT_DMA ||
tf->protocol == ATA_PROT_NODATA);
ata_tf_load_mmio(ap, tf);
}
static void pdc_exec_command_mmio(struct ata_port *ap, struct ata_taskfile *tf)
{
WARN_ON (tf->protocol == ATA_PROT_DMA);
WARN_ON (tf->protocol == ATA_PROT_DMA ||
tf->protocol == ATA_PROT_NODATA);
ata_exec_command_mmio(ap, tf);
}
......@@ -539,8 +528,7 @@ static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
writel(tmp, mmio + PDC_TBG_MODE);
readl(mmio + PDC_TBG_MODE); /* flush */
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(msecs_to_jiffies(10) + 1);
msleep(10);
/* adjust slew rate control register. */
tmp = readl(mmio + PDC_SLEW_CTL);
......@@ -601,6 +589,7 @@ static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *
probe_ent->sht = pdc_port_info[board_idx].sht;
probe_ent->host_flags = pdc_port_info[board_idx].host_flags;
probe_ent->pio_mask = pdc_port_info[board_idx].pio_mask;
probe_ent->mwdma_mask = pdc_port_info[board_idx].mwdma_mask;
probe_ent->udma_mask = pdc_port_info[board_idx].udma_mask;
probe_ent->port_ops = pdc_port_info[board_idx].port_ops;
......
drivers/scsi/sata_sil.c
View file @ e4babc07
......@@ -6,7 +6,7 @@
* on emails.
*
* Copyright 2003 Red Hat, Inc.
* Copyright 2003 Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Copyright 2003 Benjamin Herrenschmidt
*
* The contents of this file are subject to the Open
* Software License version 1.1 that can be found at
......@@ -149,7 +149,8 @@ static struct ata_port_info sil_port_info[] = {
.sht = &sil_sht,
.host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_SRST | ATA_FLAG_MMIO,
.pio_mask = 0x03, /* pio3-4 */
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x3f, /* udma0-5 */
.port_ops = &sil_ops,
}, /* sil_3114 */
......@@ -157,7 +158,8 @@ static struct ata_port_info sil_port_info[] = {
.sht = &sil_sht,
.host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_SRST | ATA_FLAG_MMIO,
.pio_mask = 0x03, /* pio3-4 */
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x3f, /* udma0-5 */
.port_ops = &sil_ops,
},
......@@ -363,6 +365,7 @@ static int sil_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
probe_ent->sht = sil_port_info[ent->driver_data].sht;
probe_ent->n_ports = (ent->driver_data == sil_3114) ? 4 : 2;
probe_ent->pio_mask = sil_port_info[ent->driver_data].pio_mask;
probe_ent->mwdma_mask = sil_port_info[ent->driver_data].mwdma_mask;
probe_ent->udma_mask = sil_port_info[ent->driver_data].udma_mask;
probe_ent->irq = pdev->irq;
probe_ent->irq_flags = SA_SHIRQ;
......
drivers/scsi/sata_sis.c
View file @ e4babc07
......@@ -230,7 +230,8 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
probe_ent->host_flags |= SIS_FLAG_CFGSCR;
}
probe_ent->pio_mask = 0x03;
probe_ent->pio_mask = 0x1f;
probe_ent->mwdma_mask = 0x7;
probe_ent->udma_mask = 0x7f;
probe_ent->port_ops = &sis_ops;
......@@ -284,6 +285,6 @@ static void __exit sis_exit(void)
pci_unregister_driver(&sis_pci_driver);
}
module_init(sis_init);
module_exit(sis_exit);
drivers/scsi/sata_svw.c
View file @ e4babc07
......@@ -343,6 +343,7 @@ static int k2_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
* if we don't fill these
*/
probe_ent->pio_mask = 0x1f;
probe_ent->mwdma_mask = 0x7;
probe_ent->udma_mask = 0x7f;
/* We have 4 ports per PCI function */
......@@ -388,6 +389,7 @@ static int __init k2_sata_init(void)
return pci_module_init(&k2_sata_pci_driver);
}
static void __exit k2_sata_exit(void)
{
pci_unregister_driver(&k2_sata_pci_driver);
......
drivers/scsi/sata_sx4.c
View file @ e4babc07
......@@ -146,8 +146,6 @@ struct pdc_host_priv {
static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
static void pdc20621_dma_setup(struct ata_queued_cmd *qc);
static void pdc20621_dma_start(struct ata_queued_cmd *qc);
static irqreturn_t pdc20621_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
static void pdc_eng_timeout(struct ata_port *ap);
static void pdc_20621_phy_reset (struct ata_port *ap);
......@@ -157,8 +155,6 @@ static void pdc20621_qc_prep(struct ata_queued_cmd *qc);
static void pdc_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf);
static void pdc_exec_command_mmio(struct ata_port *ap, struct ata_taskfile *tf);
static void pdc20621_host_stop(struct ata_host_set *host_set);
static inline void pdc_dma_complete (struct ata_port *ap,
struct ata_queued_cmd *qc, int have_err);
static unsigned int pdc20621_dimm_init(struct ata_probe_ent *pe);
static int pdc20621_detect_dimm(struct ata_probe_ent *pe);
static unsigned int pdc20621_i2c_read(struct ata_probe_ent *pe,
......@@ -172,6 +168,7 @@ static void pdc20621_get_from_dimm(struct ata_probe_ent *pe,
static void pdc20621_put_to_dimm(struct ata_probe_ent *pe,
void *psource, u32 offset, u32 size);
static void pdc20621_irq_clear(struct ata_port *ap);
static int pdc20621_qc_issue_prot(struct ata_queued_cmd *qc);
static Scsi_Host_Template pdc_sata_sht = {
......@@ -199,10 +196,8 @@ static struct ata_port_operations pdc_20621_ops = {
.check_status = ata_check_status_mmio,
.exec_command = pdc_exec_command_mmio,
.phy_reset = pdc_20621_phy_reset,
.bmdma_setup = pdc20621_dma_setup,
.bmdma_start = pdc20621_dma_start,
.qc_prep = pdc20621_qc_prep,
.qc_issue = ata_qc_issue_prot,
.qc_issue = pdc20621_qc_issue_prot,
.eng_timeout = pdc_eng_timeout,
.irq_handler = pdc20621_interrupt,
.irq_clear = pdc20621_irq_clear,
......@@ -217,7 +212,8 @@ static struct ata_port_info pdc_port_info[] = {
.sht = &pdc_sata_sht,
.host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_SRST | ATA_FLAG_MMIO,
.pio_mask = 0x03, /* pio3-4 */
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
.port_ops = &pdc_20621_ops,
},
......@@ -377,7 +373,10 @@ static inline unsigned int pdc20621_ata_pkt(struct ata_taskfile *tf,
/* dimm dma S/G, and next-pkt */
dw = i >> 2;
buf32[dw] = cpu_to_le32(dimm_sg);
if (tf->protocol == ATA_PROT_NODATA)
buf32[dw] = 0;
else
buf32[dw] = cpu_to_le32(dimm_sg);
buf32[dw + 1] = 0;
i += 8;
......@@ -437,7 +436,7 @@ static inline void pdc20621_host_pkt(struct ata_taskfile *tf, u8 *buf,
buf32[dw + 3]);
}
static void pdc20621_qc_prep(struct ata_queued_cmd *qc)
static void pdc20621_dma_prep(struct ata_queued_cmd *qc)
{
struct scatterlist *sg = qc->sg;
struct ata_port *ap = qc->ap;
......@@ -449,8 +448,7 @@ static void pdc20621_qc_prep(struct ata_queued_cmd *qc)
unsigned int i, last, idx, total_len = 0, sgt_len;
u32 *buf = (u32 *) &pp->dimm_buf[PDC_DIMM_HEADER_SZ];
if (!(qc->flags & ATA_QCFLAG_DMAMAP))
return;
assert(qc->flags & ATA_QCFLAG_DMAMAP);
VPRINTK("ata%u: ENTER\n", ap->id);
......@@ -501,6 +499,56 @@ static void pdc20621_qc_prep(struct ata_queued_cmd *qc)
VPRINTK("ata pkt buf ofs %u, prd size %u, mmio copied\n", i, sgt_len);
}
static void pdc20621_nodata_prep(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct pdc_port_priv *pp = ap->private_data;
void *mmio = ap->host_set->mmio_base;
struct pdc_host_priv *hpriv = ap->host_set->private_data;
void *dimm_mmio = hpriv->dimm_mmio;
unsigned int portno = ap->port_no;
unsigned int i;
VPRINTK("ata%u: ENTER\n", ap->id);
/* hard-code chip #0 */
mmio += PDC_CHIP0_OFS;
i = pdc20621_ata_pkt(&qc->tf, qc->dev->devno, &pp->dimm_buf[0], portno);
if (qc->tf.flags & ATA_TFLAG_LBA48)
i = pdc_prep_lba48(&qc->tf, &pp->dimm_buf[0], i);
else
i = pdc_prep_lba28(&qc->tf, &pp->dimm_buf[0], i);
pdc_pkt_footer(&qc->tf, &pp->dimm_buf[0], i);
/* copy three S/G tables and two packets to DIMM MMIO window */
memcpy_toio(dimm_mmio + (portno * PDC_DIMM_WINDOW_STEP),
&pp->dimm_buf, PDC_DIMM_HEADER_SZ);
/* force host FIFO dump */
writel(0x00000001, mmio + PDC_20621_GENERAL_CTL);
readl(dimm_mmio); /* MMIO PCI posting flush */
VPRINTK("ata pkt buf ofs %u, prd size %u, mmio copied\n", i, sgt_len);
}
static void pdc20621_qc_prep(struct ata_queued_cmd *qc)
{
switch (qc->tf.protocol) {
case ATA_PROT_DMA:
pdc20621_dma_prep(qc);
break;
case ATA_PROT_NODATA:
pdc20621_nodata_prep(qc);
break;
default:
break;
}
}
static void __pdc20621_push_hdma(struct ata_queued_cmd *qc,
unsigned int seq,
u32 pkt_ofs)
......@@ -576,13 +624,7 @@ static void pdc20621_dump_hdma(struct ata_queued_cmd *qc)
static inline void pdc20621_dump_hdma(struct ata_queued_cmd *qc) { }
#endif /* ATA_VERBOSE_DEBUG */
static void pdc20621_dma_setup(struct ata_queued_cmd *qc)
{
/* nothing for now. later, we will call standard
* code in libata-core for ATAPI here */
}
static void pdc20621_dma_start(struct ata_queued_cmd *qc)
static void pdc20621_packet_start(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct ata_host_set *host_set = ap->host_set;
......@@ -590,24 +632,21 @@ static void pdc20621_dma_start(struct ata_queued_cmd *qc)
void *mmio = host_set->mmio_base;
unsigned int rw = (qc->tf.flags & ATA_TFLAG_WRITE);
u8 seq = (u8) (port_no + 1);
unsigned int doing_hdma = 0, port_ofs;
unsigned int port_ofs;
/* hard-code chip #0 */
mmio += PDC_CHIP0_OFS;
VPRINTK("ata%u: ENTER\n", ap->id);
wmb(); /* flush PRD, pkt writes */
port_ofs = PDC_20621_DIMM_BASE + (PDC_DIMM_WINDOW_STEP * port_no);
/* if writing, we (1) DMA to DIMM, then (2) do ATA command */
if (rw) {
doing_hdma = 1;
if (rw && qc->tf.protocol == ATA_PROT_DMA) {
seq += 4;
}
wmb(); /* flush PRD, pkt writes */
if (doing_hdma) {
pdc20621_dump_hdma(qc);
pdc20621_push_hdma(qc, seq, port_ofs + PDC_DIMM_HOST_PKT);
VPRINTK("queued ofs 0x%x (%u), seq %u\n",
......@@ -628,6 +667,25 @@ static void pdc20621_dma_start(struct ata_queued_cmd *qc)
}
}
static int pdc20621_qc_issue_prot(struct ata_queued_cmd *qc)
{
switch (qc->tf.protocol) {
case ATA_PROT_DMA:
case ATA_PROT_NODATA:
pdc20621_packet_start(qc);
return 0;
case ATA_PROT_ATAPI_DMA:
BUG();
break;
default:
break;
}
return ata_qc_issue_prot(qc);
}
static inline unsigned int pdc20621_host_intr( struct ata_port *ap,
struct ata_queued_cmd *qc,
unsigned int doing_hdma,
......@@ -648,7 +706,8 @@ static inline unsigned int pdc20621_host_intr( struct ata_port *ap,
if (doing_hdma) {
VPRINTK("ata%u: read hdma, 0x%x 0x%x\n", ap->id,
readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT));
pdc_dma_complete(ap, qc, 0);
/* get drive status; clear intr; complete txn */
ata_qc_complete(qc, ata_wait_idle(ap));
pdc20621_pop_hdma(qc);
}
......@@ -685,7 +744,8 @@ static inline unsigned int pdc20621_host_intr( struct ata_port *ap,
else {
VPRINTK("ata%u: write ata, 0x%x 0x%x\n", ap->id,
readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT));
pdc_dma_complete(ap, qc, 0);
/* get drive status; clear intr; complete txn */
ata_qc_complete(qc, ata_wait_idle(ap));
pdc20621_pop_hdma(qc);
}
handled = 1;
......@@ -779,16 +839,6 @@ static irqreturn_t pdc20621_interrupt (int irq, void *dev_instance, struct pt_re
return IRQ_RETVAL(handled);
}
static inline void pdc_dma_complete (struct ata_port *ap,
struct ata_queued_cmd *qc,
int have_err)
{
u8 err_bit = have_err ? ATA_ERR : 0;
/* get drive status; clear intr; complete txn */
ata_qc_complete(qc, ata_wait_idle(ap) | err_bit);
}
static void pdc_eng_timeout(struct ata_port *ap)
{
u8 drv_stat;
......@@ -813,17 +863,9 @@ static void pdc_eng_timeout(struct ata_port *ap)
switch (qc->tf.protocol) {
case ATA_PROT_DMA:
printk(KERN_ERR "ata%u: DMA timeout\n", ap->id);
ata_qc_complete(qc, ata_wait_idle(ap) | ATA_ERR);
break;
case ATA_PROT_NODATA:
drv_stat = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
printk(KERN_ERR "ata%u: command 0x%x timeout, stat 0x%x\n",
ap->id, qc->tf.command, drv_stat);
ata_qc_complete(qc, drv_stat);
printk(KERN_ERR "ata%u: command timeout\n", ap->id);
ata_qc_complete(qc, ata_wait_idle(ap) | ATA_ERR);
break;
default:
......@@ -842,15 +884,17 @@ static void pdc_eng_timeout(struct ata_port *ap)
static void pdc_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf)
{
if (tf->protocol != ATA_PROT_DMA)
ata_tf_load_mmio(ap, tf);
WARN_ON (tf->protocol == ATA_PROT_DMA ||
tf->protocol == ATA_PROT_NODATA);
ata_tf_load_mmio(ap, tf);
}
static void pdc_exec_command_mmio(struct ata_port *ap, struct ata_taskfile *tf)
{
if (tf->protocol != ATA_PROT_DMA)
ata_exec_command_mmio(ap, tf);
WARN_ON (tf->protocol == ATA_PROT_DMA ||
tf->protocol == ATA_PROT_NODATA);
ata_exec_command_mmio(ap, tf);
}
......@@ -1384,6 +1428,7 @@ static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *
probe_ent->sht = pdc_port_info[board_idx].sht;
probe_ent->host_flags = pdc_port_info[board_idx].host_flags;
probe_ent->pio_mask = pdc_port_info[board_idx].pio_mask;
probe_ent->mwdma_mask = pdc_port_info[board_idx].mwdma_mask;
probe_ent->udma_mask = pdc_port_info[board_idx].udma_mask;
probe_ent->port_ops = pdc_port_info[board_idx].port_ops;
......@@ -1394,21 +1439,11 @@ static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *
probe_ent->private_data = hpriv;
base += PDC_CHIP0_OFS;
probe_ent->n_ports = 4;
pdc_sata_setup_port(&probe_ent->port[0], base + 0x200);
pdc_sata_setup_port(&probe_ent->port[1], base + 0x280);
/* notice 4-port boards */
switch (board_idx) {
case board_20621:
probe_ent->n_ports = 4;
pdc_sata_setup_port(&probe_ent->port[2], base + 0x300);
pdc_sata_setup_port(&probe_ent->port[3], base + 0x380);
break;
default:
BUG();
break;
}
pdc_sata_setup_port(&probe_ent->port[2], base + 0x300);
pdc_sata_setup_port(&probe_ent->port[3], base + 0x380);
pci_set_master(pdev);
......
drivers/scsi/sata_via.c
View file @ e4babc07
......@@ -214,6 +214,7 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
probe_ent->irq = pdev->irq;
probe_ent->irq_flags = SA_SHIRQ;
probe_ent->pio_mask = 0x1f;
probe_ent->mwdma_mask = 0x07;
probe_ent->udma_mask = 0x7f;
probe_ent->port[0].cmd_addr = pci_resource_start(pdev, 0);
......
drivers/scsi/sata_vsc.c
View file @ e4babc07
......@@ -320,6 +320,7 @@ static int __devinit vsc_sata_init_one (struct pci_dev *pdev, const struct pci_d
* if we don't fill these
*/
probe_ent->pio_mask = 0x1f;
probe_ent->mwdma_mask = 0x07;
probe_ent->udma_mask = 0x7f;
/* We have 4 ports per PCI function */
......
include/linux/ata.h
View file @ e4babc07
......@@ -42,6 +42,7 @@ enum {
ATA_ID_SERNO_OFS = 10,
ATA_ID_MAJOR_VER = 80,
ATA_ID_PIO_MODES = 64,
ATA_ID_MWDMA_MODES = 63,
ATA_ID_UDMA_MODES = 88,
ATA_ID_PIO4 = (1 << 1),
......@@ -133,13 +134,20 @@ enum {
XFER_UDMA_2 = 0x42,
XFER_UDMA_1 = 0x41,
XFER_UDMA_0 = 0x40,
XFER_MW_DMA_2 = 0x22,
XFER_MW_DMA_1 = 0x21,
XFER_MW_DMA_0 = 0x20,
XFER_PIO_4 = 0x0C,
XFER_PIO_3 = 0x0B,
XFER_PIO_2 = 0x0A,
XFER_PIO_1 = 0x09,
XFER_PIO_0 = 0x08,
/* ATAPI stuff */
ATAPI_PKT_DMA = (1 << 0),
ATAPI_DMADIR = (1 << 2), /* ATAPI data dir:
0=to device, 1=to host */
ATAPI_CDB_LEN = 16,
/* cable types */
ATA_CBL_NONE = 0,
......@@ -169,7 +177,8 @@ enum ata_tf_protocols {
ATA_PROT_PIO, /* PIO single sector */
ATA_PROT_PIO_MULT, /* PIO multiple sector */
ATA_PROT_DMA, /* DMA */
ATA_PROT_ATAPI, /* packet command */
ATA_PROT_ATAPI, /* packet command, PIO data xfer*/
ATA_PROT_ATAPI_NODATA, /* packet command, no data */
ATA_PROT_ATAPI_DMA, /* packet command with special DMA sauce */
};
......@@ -220,9 +229,20 @@ struct ata_taskfile {
((u64) dev->id[(n) + 1] << 16) | \
((u64) dev->id[(n) + 0]) )
static inline int atapi_cdb_len(u16 *dev_id)
{
u16 tmp = dev_id[0] & 0x3;
switch (tmp) {
case 0: return 12;
case 1: return 16;
default: return -1;
}
}
static inline int is_atapi_taskfile(struct ata_taskfile *tf)
{
return (tf->protocol == ATA_PROT_ATAPI) ||
(tf->protocol == ATA_PROT_ATAPI_NODATA) ||
(tf->protocol == ATA_PROT_ATAPI_DMA);
}
......
include/linux/libata.h
View file @ e4babc07
......@@ -32,7 +32,6 @@
/*
* compile-time options
*/
#undef ATA_FORCE_PIO /* do not configure or use DMA */
#undef ATA_DEBUG /* debugging output */
#undef ATA_VERBOSE_DEBUG /* yet more debugging output */
#undef ATA_IRQ_TRAP /* define to ack screaming irqs */
......@@ -88,10 +87,7 @@ enum {
/* struct ata_device stuff */
ATA_DFLAG_LBA48 = (1 << 0), /* device supports LBA48 */
ATA_DFLAG_PIO = (1 << 1), /* device currently in PIO mode */
ATA_DFLAG_MASTER = (1 << 2), /* is device 0? */
ATA_DFLAG_WCACHE = (1 << 3), /* has write cache we can
* (hopefully) flush? */
ATA_DFLAG_LOCK_SECTORS = (1 << 4), /* don't adjust max_sectors */
ATA_DFLAG_LOCK_SECTORS = (1 << 2), /* don't adjust max_sectors */
ATA_DEV_UNKNOWN = 0, /* unknown device */
ATA_DEV_ATA = 1, /* ATA device */
......@@ -111,7 +107,6 @@ enum {
ATA_FLAG_SATA_RESET = (1 << 7), /* use COMRESET */
ATA_QCFLAG_ACTIVE = (1 << 1), /* cmd not yet ack'd to scsi lyer */
ATA_QCFLAG_DMA = (1 << 2), /* data delivered via DMA */
ATA_QCFLAG_SG = (1 << 3), /* have s/g table? */
ATA_QCFLAG_SINGLE = (1 << 4), /* no s/g, just a single buffer */
ATA_QCFLAG_DMAMAP = ATA_QCFLAG_SG | ATA_QCFLAG_SINGLE,
......@@ -140,6 +135,13 @@ enum {
PORT_UNKNOWN = 0,
PORT_ENABLED = 1,
PORT_DISABLED = 2,
/* encoding various smaller bitmaps into a single
* unsigned long bitmap
*/
ATA_SHIFT_UDMA = 0,
ATA_SHIFT_MWDMA = 8,
ATA_SHIFT_PIO = 11,
};
enum pio_task_states {
......@@ -188,6 +190,7 @@ struct ata_probe_ent {
struct ata_ioports port[ATA_MAX_PORTS];
unsigned int n_ports;
unsigned int pio_mask;
unsigned int mwdma_mask;
unsigned int udma_mask;
unsigned int legacy_mode;
unsigned long irq;
......@@ -215,6 +218,9 @@ struct ata_queued_cmd {
struct scsi_cmnd *scsicmd;
void (*scsidone)(struct scsi_cmnd *);
struct ata_taskfile tf;
u8 cdb[ATAPI_CDB_LEN];
unsigned long flags; /* ATA_QCFLAG_xxx */
unsigned int tag;
unsigned int n_elem;
......@@ -226,7 +232,6 @@ struct ata_queued_cmd {
unsigned int cursg;
unsigned int cursg_ofs;
struct ata_taskfile tf;
struct scatterlist sgent;
void *buf_virt;
......@@ -251,8 +256,10 @@ struct ata_device {
unsigned int class; /* ATA_DEV_xxx */
unsigned int devno; /* 0 or 1 */
u16 id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */
unsigned int pio_mode;
unsigned int udma_mode;
u8 pio_mode;
u8 dma_mode;
u8 xfer_mode;
unsigned int xfer_shift; /* ATA_SHIFT_xxx */
/* cache info about current transfer mode */
u8 xfer_protocol; /* taskfile xfer protocol */
......@@ -277,8 +284,10 @@ struct ata_port {
unsigned int bus_state;
unsigned int port_state;
unsigned int pio_mask;
unsigned int mwdma_mask;
unsigned int udma_mask;
unsigned int cbl; /* cable type; ATA_CBL_xxx */
unsigned int cdb_len;
struct ata_device device[ATA_MAX_DEVICES];
......@@ -303,10 +312,8 @@ struct ata_port_operations {
void (*dev_config) (struct ata_port *, struct ata_device *);
void (*set_piomode) (struct ata_port *, struct ata_device *,
unsigned int);
void (*set_udmamode) (struct ata_port *, struct ata_device *,
unsigned int);
void (*set_piomode) (struct ata_port *, struct ata_device *);
void (*set_dmamode) (struct ata_port *, struct ata_device *);
void (*tf_load) (struct ata_port *ap, struct ata_taskfile *tf);
void (*tf_read) (struct ata_port *ap, struct ata_taskfile *tf);
......@@ -342,6 +349,7 @@ struct ata_port_info {
Scsi_Host_Template *sht;
unsigned long host_flags;
unsigned long pio_mask;
unsigned long mwdma_mask;
unsigned long udma_mask;
struct ata_port_operations *port_ops;
};
......@@ -472,7 +480,6 @@ static inline u8 ata_wait_idle(struct ata_port *ap)
static inline void ata_qc_set_polling(struct ata_queued_cmd *qc)
{
qc->flags &= ~ATA_QCFLAG_DMA;
qc->tf.ctl |= ATA_NIEN;
}
......
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