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Commit 923540a1 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 ab1d1f0d ce98f369
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Showing with 722 additions and 452 deletions
drivers/scsi/ata_piix.c
View file @ 923540a1
......@@ -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;
......@@ -452,11 +470,14 @@ 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 (speed >= XFER_UDMA_0) {
if (!(reg48 & u_flag))
pci_write_config_byte(dev, 0x48, reg48 | u_flag);
if (speed == XFER_UDMA_5) {
......@@ -471,6 +492,16 @@ static void piix_set_udmamode (struct ata_port *ap, struct ata_device *adev,
pci_write_config_byte(dev, 0x54, reg54 | v_flag);
} else
pci_write_config_byte(dev, 0x54, reg54 & ~v_flag);
} else {
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);
}
}
/* 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 @ 923540a1
This diff is collapsed.
drivers/scsi/libata-scsi.c
View file @ 923540a1
......@@ -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
if (unlikely(drv_stat & (ATA_ERR | ATA_BUSY | ATA_DRQ)))
ata_to_sense_error(qc);
} else {
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);
/* 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 @ 923540a1
......@@ -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 @ 923540a1
......@@ -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,
},
......@@ -269,9 +268,14 @@ static void pdc_qc_prep(struct ata_queued_cmd *qc)
VPRINTK("ENTER\n");
switch (qc->tf.protocol) {
case ATA_PROT_DMA:
ata_qc_prep(qc);
/* fall through */
i = pdc_pkt_header(&qc->tf, qc->ap->prd_dma, qc->dev->devno, pp->pkt);
case ATA_PROT_NODATA:
i = pdc_pkt_header(&qc->tf, qc->ap->prd_dma,
qc->dev->devno, pp->pkt);
if (qc->tf.flags & ATA_TFLAG_LBA48)
i = pdc_prep_lba48(&qc->tf, pp->pkt, i);
......@@ -279,16 +283,11 @@ static void pdc_qc_prep(struct ata_queued_cmd *qc)
i = pdc_prep_lba28(&qc->tf, pp->pkt, i);
pdc_pkt_footer(&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;
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 @ 923540a1
......@@ -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 @ 923540a1
......@@ -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;
......
drivers/scsi/sata_svw.c
View file @ 923540a1
......@@ -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 */
......
drivers/scsi/sata_sx4.c
View file @ 923540a1
......@@ -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,
},
......@@ -377,6 +373,9 @@ static inline unsigned int pdc20621_ata_pkt(struct ata_taskfile *tf,
/* dimm dma S/G, and next-pkt */
dw = i >> 2;
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:
......@@ -842,14 +884,16 @@ 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)
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)
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;
}
pci_set_master(pdev);
......
drivers/scsi/sata_via.c
View file @ 923540a1
......@@ -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 @ 923540a1
......@@ -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 @ 923540a1
......@@ -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 @ 923540a1
......@@ -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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