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-rw-r--r--drivers/scsi/ahci.c659
-rw-r--r--drivers/scsi/ata_piix.c18
-rw-r--r--drivers/scsi/libata-bmdma.c160
-rw-r--r--drivers/scsi/libata-core.c299
-rw-r--r--drivers/scsi/libata-scsi.c157
-rw-r--r--drivers/scsi/libata.h5
-rw-r--r--drivers/scsi/sata_sil.c4
-rw-r--r--include/asm-alpha/libata-portmap.h1
-rw-r--r--include/asm-generic/libata-portmap.h12
-rw-r--r--include/asm-i386/libata-portmap.h1
-rw-r--r--include/asm-ia64/libata-portmap.h1
-rw-r--r--include/asm-powerpc/libata-portmap.h1
-rw-r--r--include/asm-sparc/libata-portmap.h1
-rw-r--r--include/asm-sparc64/libata-portmap.h1
-rw-r--r--include/asm-x86_64/libata-portmap.h1
-rw-r--r--include/linux/ata.h2
-rw-r--r--include/linux/libata.h35
17 files changed, 899 insertions, 459 deletions
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index 904c25fb4ba..68fd7667a08 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -92,7 +92,9 @@ enum {
HOST_AHCI_EN = (1 << 31), /* AHCI enabled */
/* HOST_CAP bits */
+ HOST_CAP_SSC = (1 << 14), /* Slumber capable */
HOST_CAP_CLO = (1 << 24), /* Command List Override support */
+ HOST_CAP_SSS = (1 << 27), /* Staggered Spin-up */
HOST_CAP_NCQ = (1 << 30), /* Native Command Queueing */
HOST_CAP_64 = (1 << 31), /* PCI DAC (64-bit DMA) support */
@@ -155,6 +157,7 @@ enum {
PORT_CMD_SPIN_UP = (1 << 1), /* Spin up device */
PORT_CMD_START = (1 << 0), /* Enable port DMA engine */
+ PORT_CMD_ICC_MASK = (0xf << 28), /* i/f ICC state mask */
PORT_CMD_ICC_ACTIVE = (0x1 << 28), /* Put i/f in active state */
PORT_CMD_ICC_PARTIAL = (0x2 << 28), /* Put i/f in partial state */
PORT_CMD_ICC_SLUMBER = (0x6 << 28), /* Put i/f in slumber state */
@@ -212,6 +215,10 @@ static void ahci_freeze(struct ata_port *ap);
static void ahci_thaw(struct ata_port *ap);
static void ahci_error_handler(struct ata_port *ap);
static void ahci_post_internal_cmd(struct ata_queued_cmd *qc);
+static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg);
+static int ahci_port_resume(struct ata_port *ap);
+static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
+static int ahci_pci_device_resume(struct pci_dev *pdev);
static void ahci_remove_one (struct pci_dev *pdev);
static struct scsi_host_template ahci_sht = {
@@ -231,6 +238,8 @@ static struct scsi_host_template ahci_sht = {
.slave_configure = ata_scsi_slave_config,
.slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
+ .suspend = ata_scsi_device_suspend,
+ .resume = ata_scsi_device_resume,
};
static const struct ata_port_operations ahci_ops = {
@@ -257,6 +266,9 @@ static const struct ata_port_operations ahci_ops = {
.error_handler = ahci_error_handler,
.post_internal_cmd = ahci_post_internal_cmd,
+ .port_suspend = ahci_port_suspend,
+ .port_resume = ahci_port_resume,
+
.port_start = ahci_port_start,
.port_stop = ahci_port_stop,
};
@@ -350,6 +362,14 @@ static const struct pci_device_id ahci_pci_tbl[] = {
{ PCI_VENDOR_ID_NVIDIA, 0x044f, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
board_ahci }, /* MCP65 */
+ /* SiS */
+ { PCI_VENDOR_ID_SI, 0x1184, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ board_ahci }, /* SiS 966 */
+ { PCI_VENDOR_ID_SI, 0x1185, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ board_ahci }, /* SiS 966 */
+ { PCI_VENDOR_ID_SI, 0x0186, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ board_ahci }, /* SiS 968 */
+
{ } /* terminate list */
};
@@ -358,6 +378,8 @@ static struct pci_driver ahci_pci_driver = {
.name = DRV_NAME,
.id_table = ahci_pci_tbl,
.probe = ahci_init_one,
+ .suspend = ahci_pci_device_suspend,
+ .resume = ahci_pci_device_resume,
.remove = ahci_remove_one,
};
@@ -372,177 +394,288 @@ static inline void __iomem *ahci_port_base (void __iomem *base, unsigned int por
return (void __iomem *) ahci_port_base_ul((unsigned long)base, port);
}
-static int ahci_port_start(struct ata_port *ap)
+static u32 ahci_scr_read (struct ata_port *ap, unsigned int sc_reg_in)
{
- struct device *dev = ap->host_set->dev;
- struct ahci_host_priv *hpriv = ap->host_set->private_data;
- struct ahci_port_priv *pp;
- void __iomem *mmio = ap->host_set->mmio_base;
- void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
- void *mem;
- dma_addr_t mem_dma;
- int rc;
-
- pp = kmalloc(sizeof(*pp), GFP_KERNEL);
- if (!pp)
- return -ENOMEM;
- memset(pp, 0, sizeof(*pp));
+ unsigned int sc_reg;
- rc = ata_pad_alloc(ap, dev);
- if (rc) {
- kfree(pp);
- return rc;
+ switch (sc_reg_in) {
+ case SCR_STATUS: sc_reg = 0; break;
+ case SCR_CONTROL: sc_reg = 1; break;
+ case SCR_ERROR: sc_reg = 2; break;
+ case SCR_ACTIVE: sc_reg = 3; break;
+ default:
+ return 0xffffffffU;
}
- mem = dma_alloc_coherent(dev, AHCI_PORT_PRIV_DMA_SZ, &mem_dma, GFP_KERNEL);
- if (!mem) {
- ata_pad_free(ap, dev);
- kfree(pp);
- return -ENOMEM;
- }
- memset(mem, 0, AHCI_PORT_PRIV_DMA_SZ);
+ return readl((void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
+}
- /*
- * First item in chunk of DMA memory: 32-slot command table,
- * 32 bytes each in size
- */
- pp->cmd_slot = mem;
- pp->cmd_slot_dma = mem_dma;
- mem += AHCI_CMD_SLOT_SZ;
- mem_dma += AHCI_CMD_SLOT_SZ;
+static void ahci_scr_write (struct ata_port *ap, unsigned int sc_reg_in,
+ u32 val)
+{
+ unsigned int sc_reg;
- /*
- * Second item: Received-FIS area
- */
- pp->rx_fis = mem;
- pp->rx_fis_dma = mem_dma;
+ switch (sc_reg_in) {
+ case SCR_STATUS: sc_reg = 0; break;
+ case SCR_CONTROL: sc_reg = 1; break;
+ case SCR_ERROR: sc_reg = 2; break;
+ case SCR_ACTIVE: sc_reg = 3; break;
+ default:
+ return;
+ }
- mem += AHCI_RX_FIS_SZ;
- mem_dma += AHCI_RX_FIS_SZ;
+ writel(val, (void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
+}
- /*
- * Third item: data area for storing a single command
- * and its scatter-gather table
- */
- pp->cmd_tbl = mem;
- pp->cmd_tbl_dma = mem_dma;
+static void ahci_start_engine(void __iomem *port_mmio)
+{
+ u32 tmp;
- ap->private_data = pp;
+ /* start DMA */
+ tmp = readl(port_mmio + PORT_CMD);
+ tmp |= PORT_CMD_START;
+ writel(tmp, port_mmio + PORT_CMD);
+ readl(port_mmio + PORT_CMD); /* flush */
+}
- if (hpriv->cap & HOST_CAP_64)
- writel((pp->cmd_slot_dma >> 16) >> 16, port_mmio + PORT_LST_ADDR_HI);
- writel(pp->cmd_slot_dma & 0xffffffff, port_mmio + PORT_LST_ADDR);
- readl(port_mmio + PORT_LST_ADDR); /* flush */
+static int ahci_stop_engine(void __iomem *port_mmio)
+{
+ u32 tmp;
- if (hpriv->cap & HOST_CAP_64)
- writel((pp->rx_fis_dma >> 16) >> 16, port_mmio + PORT_FIS_ADDR_HI);
- writel(pp->rx_fis_dma & 0xffffffff, port_mmio + PORT_FIS_ADDR);
- readl(port_mmio + PORT_FIS_ADDR); /* flush */
+ tmp = readl(port_mmio + PORT_CMD);
- writel(PORT_CMD_ICC_ACTIVE | PORT_CMD_FIS_RX |
- PORT_CMD_POWER_ON | PORT_CMD_SPIN_UP |
- PORT_CMD_START, port_mmio + PORT_CMD);
- readl(port_mmio + PORT_CMD); /* flush */
+ /* check if the HBA is idle */
+ if ((tmp & (PORT_CMD_START | PORT_CMD_LIST_ON)) == 0)
+ return 0;
+
+ /* setting HBA to idle */
+ tmp &= ~PORT_CMD_START;
+ writel(tmp, port_mmio + PORT_CMD);
+
+ /* wait for engine to stop. This could be as long as 500 msec */
+ tmp = ata_wait_register(port_mmio + PORT_CMD,
+ PORT_CMD_LIST_ON, PORT_CMD_LIST_ON, 1, 500);
+ if (tmp & PORT_CMD_LIST_ON)
+ return -EIO;
return 0;
}
+static void ahci_start_fis_rx(void __iomem *port_mmio, u32 cap,
+ dma_addr_t cmd_slot_dma, dma_addr_t rx_fis_dma)
+{
+ u32 tmp;
+
+ /* set FIS registers */
+ if (cap & HOST_CAP_64)
+ writel((cmd_slot_dma >> 16) >> 16, port_mmio + PORT_LST_ADDR_HI);
+ writel(cmd_slot_dma & 0xffffffff, port_mmio + PORT_LST_ADDR);
-static void ahci_port_stop(struct ata_port *ap)
+ if (cap & HOST_CAP_64)
+ writel((rx_fis_dma >> 16) >> 16, port_mmio + PORT_FIS_ADDR_HI);
+ writel(rx_fis_dma & 0xffffffff, port_mmio + PORT_FIS_ADDR);
+
+ /* enable FIS reception */
+ tmp = readl(port_mmio + PORT_CMD);
+ tmp |= PORT_CMD_FIS_RX;
+ writel(tmp, port_mmio + PORT_CMD);
+
+ /* flush */
+ readl(port_mmio + PORT_CMD);
+}
+
+static int ahci_stop_fis_rx(void __iomem *port_mmio)
{
- struct device *dev = ap->host_set->dev;
- struct ahci_port_priv *pp = ap->private_data;
- void __iomem *mmio = ap->host_set->mmio_base;
- void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
u32 tmp;
+ /* disable FIS reception */
tmp = readl(port_mmio + PORT_CMD);
- tmp &= ~(PORT_CMD_START | PORT_CMD_FIS_RX);
+ tmp &= ~PORT_CMD_FIS_RX;
writel(tmp, port_mmio + PORT_CMD);
- readl(port_mmio + PORT_CMD); /* flush */
- /* spec says 500 msecs for each PORT_CMD_{START,FIS_RX} bit, so
- * this is slightly incorrect.
- */
- msleep(500);
+ /* wait for completion, spec says 500ms, give it 1000 */
+ tmp = ata_wait_register(port_mmio + PORT_CMD, PORT_CMD_FIS_ON,
+ PORT_CMD_FIS_ON, 10, 1000);
+ if (tmp & PORT_CMD_FIS_ON)
+ return -EBUSY;
- ap->private_data = NULL;
- dma_free_coherent(dev, AHCI_PORT_PRIV_DMA_SZ,
- pp->cmd_slot, pp->cmd_slot_dma);
- ata_pad_free(ap, dev);
- kfree(pp);
+ return 0;
}
-static u32 ahci_scr_read (struct ata_port *ap, unsigned int sc_reg_in)
+static void ahci_power_up(void __iomem *port_mmio, u32 cap)
{
- unsigned int sc_reg;
+ u32 cmd;
- switch (sc_reg_in) {
- case SCR_STATUS: sc_reg = 0; break;
- case SCR_CONTROL: sc_reg = 1; break;
- case SCR_ERROR: sc_reg = 2; break;
- case SCR_ACTIVE: sc_reg = 3; break;
- default:
- return 0xffffffffU;
+ cmd = readl(port_mmio + PORT_CMD) & ~PORT_CMD_ICC_MASK;
+
+ /* spin up device */
+ if (cap & HOST_CAP_SSS) {
+ cmd |= PORT_CMD_SPIN_UP;
+ writel(cmd, port_mmio + PORT_CMD);
}
- return readl((void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
+ /* wake up link */
+ writel(cmd | PORT_CMD_ICC_ACTIVE, port_mmio + PORT_CMD);
}
+static void ahci_power_down(void __iomem *port_mmio, u32 cap)
+{
+ u32 cmd, scontrol;
-static void ahci_scr_write (struct ata_port *ap, unsigned int sc_reg_in,
- u32 val)
+ cmd = readl(port_mmio + PORT_CMD) & ~PORT_CMD_ICC_MASK;
+
+ if (cap & HOST_CAP_SSC) {
+ /* enable transitions to slumber mode */
+ scontrol = readl(port_mmio + PORT_SCR_CTL);
+ if ((scontrol & 0x0f00) > 0x100) {
+ scontrol &= ~0xf00;
+ writel(scontrol, port_mmio + PORT_SCR_CTL);
+ }
+
+ /* put device into slumber mode */
+ writel(cmd | PORT_CMD_ICC_SLUMBER, port_mmio + PORT_CMD);
+
+ /* wait for the transition to complete */
+ ata_wait_register(port_mmio + PORT_CMD, PORT_CMD_ICC_SLUMBER,
+ PORT_CMD_ICC_SLUMBER, 1, 50);
+ }
+
+ /* put device into listen mode */
+ if (cap & HOST_CAP_SSS) {
+ /* first set PxSCTL.DET to 0 */
+ scontrol = readl(port_mmio + PORT_SCR_CTL);
+ scontrol &= ~0xf;
+ writel(scontrol, port_mmio + PORT_SCR_CTL);
+
+ /* then set PxCMD.SUD to 0 */
+ cmd &= ~PORT_CMD_SPIN_UP;
+ writel(cmd, port_mmio + PORT_CMD);
+ }
+}
+
+static void ahci_init_port(void __iomem *port_mmio, u32 cap,
+ dma_addr_t cmd_slot_dma, dma_addr_t rx_fis_dma)
{
- unsigned int sc_reg;
+ /* power up */
+ ahci_power_up(port_mmio, cap);
- switch (sc_reg_in) {
- case SCR_STATUS: sc_reg = 0; break;
- case SCR_CONTROL: sc_reg = 1; break;
- case SCR_ERROR: sc_reg = 2; break;
- case SCR_ACTIVE: sc_reg = 3; break;
- default:
- return;
+ /* enable FIS reception */
+ ahci_start_fis_rx(port_mmio, cap, cmd_slot_dma, rx_fis_dma);
+
+ /* enable DMA */
+ ahci_start_engine(port_mmio);
+}
+
+static int ahci_deinit_port(void __iomem *port_mmio, u32 cap, const char **emsg)
+{
+ int rc;
+
+ /* disable DMA */
+ rc = ahci_stop_engine(port_mmio);
+ if (rc) {
+ *emsg = "failed to stop engine";
+ return rc;
}
- writel(val, (void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
+ /* disable FIS reception */
+ rc = ahci_stop_fis_rx(port_mmio);
+ if (rc) {
+ *emsg = "failed stop FIS RX";
+ return rc;
+ }
+
+ /* put device into slumber mode */
+ ahci_power_down(port_mmio, cap);
+
+ return 0;
}
-static int ahci_stop_engine(struct ata_port *ap)
+static int ahci_reset_controller(void __iomem *mmio, struct pci_dev *pdev)
{
- void __iomem *mmio = ap->host_set->mmio_base;
- void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
- int work;
- u32 tmp;
+ u32 cap_save, tmp;
- tmp = readl(port_mmio + PORT_CMD);
- tmp &= ~PORT_CMD_START;
- writel(tmp, port_mmio + PORT_CMD);
+ cap_save = readl(mmio + HOST_CAP);
+ cap_save &= ( (1<<28) | (1<<17) );
+ cap_save |= (1 << 27);
- /* wait for engine to stop. TODO: this could be
- * as long as 500 msec
+ /* global controller reset */
+ tmp = readl(mmio + HOST_CTL);
+ if ((tmp & HOST_RESET) == 0) {
+ writel(tmp | HOST_RESET, mmio + HOST_CTL);
+ readl(mmio + HOST_CTL); /* flush */
+ }
+
+ /* reset must complete within 1 second, or
+ * the hardware should be considered fried.
*/
- work = 1000;
- while (work-- > 0) {
- tmp = readl(port_mmio + PORT_CMD);
- if ((tmp & PORT_CMD_LIST_ON) == 0)
- return 0;
- udelay(10);
+ ssleep(1);
+
+ tmp = readl(mmio + HOST_CTL);
+ if (tmp & HOST_RESET) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "controller reset failed (0x%x)\n", tmp);
+ return -EIO;
}
- return -EIO;
+ writel(HOST_AHCI_EN, mmio + HOST_CTL);
+ (void) readl(mmio + HOST_CTL); /* flush */
+ writel(cap_save, mmio + HOST_CAP);
+ writel(0xf, mmio + HOST_PORTS_IMPL);
+ (void) readl(mmio + HOST_PORTS_IMPL); /* flush */
+
+ if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
+ u16 tmp16;
+
+ /* configure PCS */
+ pci_read_config_word(pdev, 0x92, &tmp16);
+ tmp16 |= 0xf;
+ pci_write_config_word(pdev, 0x92, tmp16);
+ }
+
+ return 0;
}
-static void ahci_start_engine(struct ata_port *ap)
+static void ahci_init_controller(void __iomem *mmio, struct pci_dev *pdev,
+ int n_ports, u32 cap)
{
- void __iomem *mmio = ap->host_set->mmio_base;
- void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
+ int i, rc;
u32 tmp;
- tmp = readl(port_mmio + PORT_CMD);
- tmp |= PORT_CMD_START;
- writel(tmp, port_mmio + PORT_CMD);
- readl(port_mmio + PORT_CMD); /* flush */
+ for (i = 0; i < n_ports; i++) {
+ void __iomem *port_mmio = ahci_port_base(mmio, i);
+ const char *emsg = NULL;
+
+#if 0 /* BIOSen initialize this incorrectly */
+ if (!(hpriv->port_map & (1 << i)))
+ continue;
+#endif
+
+ /* make sure port is not active */
+ rc = ahci_deinit_port(port_mmio, cap, &emsg);
+ if (rc)
+ dev_printk(KERN_WARNING, &pdev->dev,
+ "%s (%d)\n", emsg, rc);
+
+ /* clear SError */
+ tmp = readl(port_mmio + PORT_SCR_ERR);
+ VPRINTK("PORT_SCR_ERR 0x%x\n", tmp);
+ writel(tmp, port_mmio + PORT_SCR_ERR);
+
+ /* clear port IRQ */
+ tmp = readl(port_mmio + PORT_IRQ_STAT);
+ VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
+ if (tmp)
+ writel(tmp, port_mmio + PORT_IRQ_STAT);
+
+ writel(1 << i, mmio + HOST_IRQ_STAT);
+ }
+
+ tmp = readl(mmio + HOST_CTL);
+ VPRINTK("HOST_CTL 0x%x\n", tmp);
+ writel(tmp | HOST_IRQ_EN, mmio + HOST_CTL);
+ tmp = readl(mmio + HOST_CTL);
+ VPRINTK("HOST_CTL 0x%x\n", tmp);
}
static unsigned int ahci_dev_classify(struct ata_port *ap)
@@ -626,7 +759,7 @@ static int ahci_softreset(struct ata_port *ap, unsigned int *class)
}
/* prepare for SRST (AHCI-1.1 10.4.1) */
- rc = ahci_stop_engine(ap);
+ rc = ahci_stop_engine(port_mmio);
if (rc) {
reason = "failed to stop engine";
goto fail_restart;
@@ -647,7 +780,7 @@ static int ahci_softreset(struct ata_port *ap, unsigned int *class)
}
/* restart engine */
- ahci_start_engine(ap);
+ ahci_start_engine(port_mmio);
ata_tf_init(ap->device, &tf);
fis = pp->cmd_tbl;
@@ -706,7 +839,7 @@ static int ahci_softreset(struct ata_port *ap, unsigned int *class)
return 0;
fail_restart:
- ahci_start_engine(ap);
+ ahci_start_engine(port_mmio);
fail:
ata_port_printk(ap, KERN_ERR, "softreset failed (%s)\n", reason);
return rc;
@@ -717,11 +850,13 @@ static int ahci_hardreset(struct ata_port *ap, unsigned int *class)
struct ahci_port_priv *pp = ap->private_data;
u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
struct ata_taskfile tf;
+ void __iomem *mmio = ap->host_set->mmio_base;
+ void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
int rc;
DPRINTK("ENTER\n");
- ahci_stop_engine(ap);
+ ahci_stop_engine(port_mmio);
/* clear D2H reception area to properly wait for D2H FIS */
ata_tf_init(ap->device, &tf);
@@ -730,7 +865,7 @@ static int ahci_hardreset(struct ata_port *ap, unsigned int *class)
rc = sata_std_hardreset(ap, class);
- ahci_start_engine(ap);
+ ahci_start_engine(port_mmio);
if (rc == 0 && ata_port_online(ap))
*class = ahci_dev_classify(ap);
@@ -1046,10 +1181,13 @@ static void ahci_thaw(struct ata_port *ap)
static void ahci_error_handler(struct ata_port *ap)
{
+ void __iomem *mmio = ap->host_set->mmio_base;
+ void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
+
if (!(ap->pflags & ATA_PFLAG_FROZEN)) {
/* restart engine */
- ahci_stop_engine(ap);
- ahci_start_engine(ap);
+ ahci_stop_engine(port_mmio);
+ ahci_start_engine(port_mmio);
}
/* perform recovery */
@@ -1060,15 +1198,176 @@ static void ahci_error_handler(struct ata_port *ap)
static void ahci_post_internal_cmd(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
+ void __iomem *mmio = ap->host_set->mmio_base;
+ void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
if (qc->flags & ATA_QCFLAG_FAILED)
qc->err_mask |= AC_ERR_OTHER;
if (qc->err_mask) {
/* make DMA engine forget about the failed command */
- ahci_stop_engine(ap);
- ahci_start_engine(ap);
+ ahci_stop_engine(port_mmio);
+ ahci_start_engine(port_mmio);
+ }
+}
+
+static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg)
+{
+ struct ahci_host_priv *hpriv = ap->host_set->private_data;
+ struct ahci_port_priv *pp = ap->private_data;
+ void __iomem *mmio = ap->host_set->mmio_base;
+ void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
+ const char *emsg = NULL;
+ int rc;
+
+ rc = ahci_deinit_port(port_mmio, hpriv->cap, &emsg);
+ if (rc) {
+ ata_port_printk(ap, KERN_ERR, "%s (%d)\n", emsg, rc);
+ ahci_init_port(port_mmio, hpriv->cap,
+ pp->cmd_slot_dma, pp->rx_fis_dma);
}
+
+ return rc;
+}
+
+static int ahci_port_resume(struct ata_port *ap)
+{
+ struct ahci_port_priv *pp = ap->private_data;
+ struct ahci_host_priv *hpriv = ap->host_set->private_data;
+ void __iomem *mmio = ap->host_set->mmio_base;
+ void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
+
+ ahci_init_port(port_mmio, hpriv->cap, pp->cmd_slot_dma, pp->rx_fis_dma);
+
+ return 0;
+}
+
+static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
+{
+ struct ata_host_set *host_set = dev_get_drvdata(&pdev->dev);
+ void __iomem *mmio = host_set->mmio_base;
+ u32 ctl;
+
+ if (mesg.event == PM_EVENT_SUSPEND) {
+ /* AHCI spec rev1.1 section 8.3.3:
+ * Software must disable interrupts prior to requesting a
+ * transition of the HBA to D3 state.
+ */
+ ctl = readl(mmio + HOST_CTL);
+ ctl &= ~HOST_IRQ_EN;
+ writel(ctl, mmio + HOST_CTL);
+ readl(mmio + HOST_CTL); /* flush */
+ }
+
+ return ata_pci_device_suspend(pdev, mesg);
+}
+
+static int ahci_pci_device_resume(struct pci_dev *pdev)
+{
+ struct ata_host_set *host_set = dev_get_drvdata(&pdev->dev);
+ struct ahci_host_priv *hpriv = host_set->private_data;
+ void __iomem *mmio = host_set->mmio_base;
+ int rc;
+
+ ata_pci_device_do_resume(pdev);
+
+ if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
+ rc = ahci_reset_controller(mmio, pdev);
+ if (rc)
+ return rc;
+
+ ahci_init_controller(mmio, pdev, host_set->n_ports, hpriv->cap);
+ }
+
+ ata_host_set_resume(host_set);
+
+ return 0;
+}
+
+static int ahci_port_start(struct ata_port *ap)
+{
+ struct device *dev = ap->host_set->dev;
+ struct ahci_host_priv *hpriv = ap->host_set->private_data;
+ struct ahci_port_priv *pp;
+ void __iomem *mmio = ap->host_set->mmio_base;
+ void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
+ void *mem;
+ dma_addr_t mem_dma;
+ int rc;
+
+ pp = kmalloc(sizeof(*pp), GFP_KERNEL);
+ if (!pp)
+ return -ENOMEM;
+ memset(pp, 0, sizeof(*pp));
+
+ rc = ata_pad_alloc(ap, dev);
+ if (rc) {
+ kfree(pp);
+ return rc;
+ }
+
+ mem = dma_alloc_coherent(dev, AHCI_PORT_PRIV_DMA_SZ, &mem_dma, GFP_KERNEL);
+ if (!mem) {
+ ata_pad_free(ap, dev);
+ kfree(pp);
+ return -ENOMEM;
+ }
+ memset(mem, 0, AHCI_PORT_PRIV_DMA_SZ);
+
+ /*
+ * First item in chunk of DMA memory: 32-slot command table,
+ * 32 bytes each in size
+ */
+ pp->cmd_slot = mem;
+ pp->cmd_slot_dma = mem_dma;
+
+ mem += AHCI_CMD_SLOT_SZ;
+ mem_dma += AHCI_CMD_SLOT_SZ;
+
+ /*
+ * Second item: Received-FIS area
+ */
+ pp->rx_fis = mem;
+ pp->rx_fis_dma = mem_dma;
+
+ mem += AHCI_RX_FIS_SZ;
+ mem_dma += AHCI_RX_FIS_SZ;
+
+ /*
+ * Third item: data area for storing a single command
+ * and its scatter-gather table
+ */
+ pp->cmd_tbl = mem;
+ pp->cmd_tbl_dma = mem_dma;
+
+ ap->private_data = pp;
+
+ /* initialize port */
+ ahci_init_port(port_mmio, hpriv->cap, pp->cmd_slot_dma, pp->rx_fis_dma);
+
+ return 0;
+}
+
+static void ahci_port_stop(struct ata_port *ap)
+{
+ struct device *dev = ap->host_set->dev;
+ struct ahci_host_priv *hpriv = ap->host_set->private_data;
+ struct ahci_port_priv *pp = ap->private_data;
+ void __iomem *mmio = ap->host_set->mmio_base;
+ void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
+ const char *emsg = NULL;
+ int rc;
+
+ /* de-initialize port */
+ rc = ahci_deinit_port(port_mmio, hpriv->cap, &emsg);
+ if (rc)
+ ata_port_printk(ap, KERN_WARNING, "%s (%d)\n", emsg, rc);
+
+ ap->private_data = NULL;
+ dma_free_coherent(dev, AHCI_PORT_PRIV_DMA_SZ,
+ pp->cmd_slot, pp->cmd_slot_dma);
+ ata_pad_free(ap, dev);
+ kfree(pp);
}
static void ahci_setup_port(struct ata_ioports *port, unsigned long base,
@@ -1089,47 +1388,12 @@ static int ahci_host_init(struct ata_probe_ent *probe_ent)
struct ahci_host_priv *hpriv = probe_ent->private_data;
struct pci_dev *pdev = to_pci_dev(probe_ent->dev);
void __iomem *mmio = probe_ent->mmio_base;
- u32 tmp, cap_save;
- unsigned int i, j, using_dac;
+ unsigned int i, using_dac;
int rc;
- void __iomem *port_mmio;
- cap_save = readl(mmio + HOST_CAP);
- cap_save &= ( (1<<28) | (1<<17) );
- cap_save |= (1 << 27);
-
- /* global controller reset */
- tmp = readl(mmio + HOST_CTL);
- if ((tmp & HOST_RESET) == 0) {
- writel(tmp | HOST_RESET, mmio + HOST_CTL);
- readl(mmio + HOST_CTL); /* flush */
- }
-
- /* reset must complete within 1 second, or
- * the hardware should be considered fried.
- */
- ssleep(1);
-
- tmp = readl(mmio + HOST_CTL);
- if (tmp & HOST_RESET) {
- dev_printk(KERN_ERR, &pdev->dev,
- "controller reset failed (0x%x)\n", tmp);
- return -EIO;
- }
-
- writel(HOST_AHCI_EN, mmio + HOST_CTL);
- (void) readl(mmio + HOST_CTL); /* flush */
- writel(cap_save, mmio + HOST_CAP);
- writel(0xf, mmio + HOST_PORTS_IMPL);
- (void) readl(mmio + HOST_PORTS_IMPL); /* flush */
-
- if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
- u16 tmp16;
-
- pci_read_config_word(pdev, 0x92, &tmp16);
- tmp16 |= 0xf;
- pci_write_config_word(pdev, 0x92, tmp16);
- }
+ rc = ahci_reset_controller(mmio, pdev);
+ if (rc)
+ return rc;
hpriv->cap = readl(mmio + HOST_CAP);
hpriv->port_map = readl(mmio + HOST_PORTS_IMPL);
@@ -1165,63 +1429,10 @@ static int ahci_host_init(struct ata_probe_ent *probe_ent)
}
}
- for (i = 0; i < probe_ent->n_ports; i++) {
-#if 0 /* BIOSen initialize this incorrectly */
- if (!(hpriv->port_map & (1 << i)))
- continue;
-#endif
-
- port_mmio = ahci_port_base(mmio, i);
- VPRINTK("mmio %p port_mmio %p\n", mmio, port_mmio);
-
- ahci_setup_port(&probe_ent->port[i],
- (unsigned long) mmio, i);
-
- /* make sure port is not active */
- tmp = readl(port_mmio + PORT_CMD);
- VPRINTK("PORT_CMD 0x%x\n", tmp);
- if (tmp & (PORT_CMD_LIST_ON | PORT_CMD_FIS_ON |
- PORT_CMD_FIS_RX | PORT_CMD_START)) {
- tmp &= ~(PORT_CMD_LIST_ON | PORT_CMD_FIS_ON |
- PORT_CMD_FIS_RX | PORT_CMD_START);
- writel(tmp, port_mmio + PORT_CMD);
- readl(port_mmio + PORT_CMD); /* flush */
-
- /* spec says 500 msecs for each bit, so
- * this is slightly incorrect.
- */
- msleep(500);
- }
-
- writel(PORT_CMD_SPIN_UP, port_mmio + PORT_CMD);
-
- j = 0;
- while (j < 100) {
- msleep(10);
- tmp = readl(port_mmio + PORT_SCR_STAT);
- if ((tmp & 0xf) == 0x3)
- break;
- j++;
- }
-
- tmp = readl(port_mmio + PORT_SCR_ERR);
- VPRINTK("PORT_SCR_ERR 0x%x\n", tmp);
- writel(tmp, port_mmio + PORT_SCR_ERR);
+ for (i = 0; i < probe_ent->n_ports; i++)
+ ahci_setup_port(&probe_ent->port[i], (unsigned long) mmio, i);
- /* ack any pending irq events for this port */
- tmp = readl(port_mmio + PORT_IRQ_STAT);
- VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
- if (tmp)
- writel(tmp, port_mmio + PORT_IRQ_STAT);
-
- writel(1 << i, mmio + HOST_IRQ_STAT);
- }
-
- tmp = readl(mmio + HOST_CTL);
- VPRINTK("HOST_CTL 0x%x\n", tmp);
- writel(tmp | HOST_IRQ_EN, mmio + HOST_CTL);
- tmp = readl(mmio + HOST_CTL);
- VPRINTK("HOST_CTL 0x%x\n", tmp);
+ ahci_init_controller(mmio, pdev, probe_ent->n_ports, hpriv->cap);
pci_set_master(pdev);
diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c
index 5e8afc87698..501755a606e 100644
--- a/drivers/scsi/ata_piix.c
+++ b/drivers/scsi/ata_piix.c
@@ -487,7 +487,7 @@ static void piix_pata_cbl_detect(struct ata_port *ap)
goto cbl40;
/* check BIOS cable detect results */
- mask = ap->hard_port_no == 0 ? PIIX_80C_PRI : PIIX_80C_SEC;
+ mask = ap->port_no == 0 ? PIIX_80C_PRI : PIIX_80C_SEC;
pci_read_config_byte(pdev, PIIX_IOCFG, &tmp);
if ((tmp & mask) == 0)
goto cbl40;
@@ -513,7 +513,7 @@ static int piix_pata_prereset(struct ata_port *ap)
{
struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
- if (!pci_test_config_bits(pdev, &piix_enable_bits[ap->hard_port_no])) {
+ if (!pci_test_config_bits(pdev, &piix_enable_bits[ap->port_no])) {
ata_port_printk(ap, KERN_INFO, "port disabled. ignoring.\n");
ap->eh_context.i.action &= ~ATA_EH_RESET_MASK;
return 0;
@@ -550,7 +550,7 @@ static int piix_sata_prereset(struct ata_port *ap)
struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
struct piix_host_priv *hpriv = ap->host_set->private_data;
const unsigned int *map = hpriv->map;
- int base = 2 * ap->hard_port_no;
+ int base = 2 * ap->port_no;
unsigned int present = 0;
int port, i;
u16 pcs;
@@ -601,7 +601,7 @@ static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev)
unsigned int pio = adev->pio_mode - XFER_PIO_0;
struct pci_dev *dev = to_pci_dev(ap->host_set->dev);
unsigned int is_slave = (adev->devno != 0);
- unsigned int master_port= ap->hard_port_no ? 0x42 : 0x40;
+ unsigned int master_port= ap->port_no ? 0x42 : 0x40;
unsigned int slave_port = 0x44;
u16 master_data;
u8 slave_data;
@@ -619,10 +619,10 @@ static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev)
/* enable PPE, IE and TIME */
master_data |= 0x0070;
pci_read_config_byte(dev, slave_port, &slave_data);
- slave_data &= (ap->hard_port_no ? 0x0f : 0xf0);
+ slave_data &= (ap->port_no ? 0x0f : 0xf0);
slave_data |=
(timings[pio][0] << 2) |
- (timings[pio][1] << (ap->hard_port_no ? 4 : 0));
+ (timings[pio][1] << (ap->port_no ? 4 : 0));
} else {
master_data &= 0xccf8;
/* enable PPE, IE and TIME */
@@ -652,9 +652,9 @@ 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 = to_pci_dev(ap->host_set->dev);
- u8 maslave = ap->hard_port_no ? 0x42 : 0x40;
+ u8 maslave = ap->port_no ? 0x42 : 0x40;
u8 speed = udma;
- unsigned int drive_dn = (ap->hard_port_no ? 2 : 0) + adev->devno;
+ unsigned int drive_dn = (ap->port_no ? 2 : 0) + adev->devno;
int a_speed = 3 << (drive_dn * 4);
int u_flag = 1 << drive_dn;
int v_flag = 0x01 << drive_dn;
@@ -932,8 +932,6 @@ static int piix_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
static void piix_host_stop(struct ata_host_set *host_set)
{
- if (host_set->next == NULL)
- kfree(host_set->private_data);
ata_host_stop(host_set);
}
diff --git a/drivers/scsi/libata-bmdma.c b/drivers/scsi/libata-bmdma.c
index 9ce221f2595..158f62dbf21 100644
--- a/drivers/scsi/libata-bmdma.c
+++ b/drivers/scsi/libata-bmdma.c
@@ -797,32 +797,6 @@ void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc)
}
#ifdef CONFIG_PCI
-static struct ata_probe_ent *
-ata_probe_ent_alloc(struct device *dev, const struct ata_port_info *port)
-{
- struct ata_probe_ent *probe_ent;
-
- probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL);
- if (!probe_ent) {
- printk(KERN_ERR DRV_NAME "(%s): out of memory\n",
- kobject_name(&(dev->kobj)));
- return NULL;
- }
-
- INIT_LIST_HEAD(&probe_ent->node);
- probe_ent->dev = dev;
-
- probe_ent->sht = port->sht;
- probe_ent->host_flags = port->host_flags;
- probe_ent->pio_mask = port->pio_mask;
- probe_ent->mwdma_mask = port->mwdma_mask;
- probe_ent->udma_mask = port->udma_mask;
- probe_ent->port_ops = port->port_ops;
-
- return probe_ent;
-}
-
-
/**
* ata_pci_init_native_mode - Initialize native-mode driver
* @pdev: pci device to be initialized
@@ -880,7 +854,7 @@ ata_pci_init_native_mode(struct pci_dev *pdev, struct ata_port_info **port, int
if (bmdma) {
bmdma += 8;
if(inb(bmdma + 2) & 0x80)
- probe_ent->host_set_flags |= ATA_HOST_SIMPLEX;
+ probe_ent->host_set_flags |= ATA_HOST_SIMPLEX;
probe_ent->port[p].bmdma_addr = bmdma;
}
ata_std_ports(&probe_ent->port[p]);
@@ -893,44 +867,48 @@ ata_pci_init_native_mode(struct pci_dev *pdev, struct ata_port_info **port, int
static struct ata_probe_ent *ata_pci_init_legacy_port(struct pci_dev *pdev,
- struct ata_port_info *port, int port_num)
+ struct ata_port_info **port, int port_mask)
{
struct ata_probe_ent *probe_ent;
- unsigned long bmdma;
+ unsigned long bmdma = pci_resource_start(pdev, 4);
- probe_ent = ata_probe_ent_alloc(pci_dev_to_dev(pdev), port);
+ probe_ent = ata_probe_ent_alloc(pci_dev_to_dev(pdev), port[0]);
if (!probe_ent)
return NULL;
- probe_ent->legacy_mode = 1;
- probe_ent->n_ports = 1;
- probe_ent->hard_port_no = port_num;
- probe_ent->private_data = port->private_data;
-
- switch(port_num)
- {
- case 0:
- probe_ent->irq = 14;
- probe_ent->port[0].cmd_addr = 0x1f0;
- probe_ent->port[0].altstatus_addr =
- probe_ent->port[0].ctl_addr = 0x3f6;
- break;
- case 1:
- probe_ent->irq = 15;
- probe_ent->port[0].cmd_addr = 0x170;
- probe_ent->port[0].altstatus_addr =
- probe_ent->port[0].ctl_addr = 0x376;
- break;
- }
+ probe_ent->n_ports = 2;
+ probe_ent->private_data = port[0]->private_data;
- bmdma = pci_resource_start(pdev, 4);
- if (bmdma != 0) {
- bmdma += 8 * port_num;
- probe_ent->port[0].bmdma_addr = bmdma;
- if (inb(bmdma + 2) & 0x80)
- probe_ent->host_set_flags |= ATA_HOST_SIMPLEX;
- }
- ata_std_ports(&probe_ent->port[0]);
+ if (port_mask & ATA_PORT_PRIMARY) {
+ probe_ent->irq = 14;
+ probe_ent->port[0].cmd_addr = ATA_PRIMARY_CMD;
+ probe_ent->port[0].altstatus_addr =
+ probe_ent->port[0].ctl_addr = ATA_PRIMARY_CTL;
+ if (bmdma) {
+ probe_ent->port[0].bmdma_addr = bmdma;
+ if (inb(bmdma + 2) & 0x80)
+ probe_ent->host_set_flags |= ATA_HOST_SIMPLEX;
+ }
+ ata_std_ports(&probe_ent->port[0]);
+ } else
+ probe_ent->dummy_port_mask |= ATA_PORT_PRIMARY;
+
+ if (port_mask & ATA_PORT_SECONDARY) {
+ if (probe_ent->irq)
+ probe_ent->irq2 = 15;
+ else
+ probe_ent->irq = 15;
+ probe_ent->port[1].cmd_addr = ATA_SECONDARY_CMD;
+ probe_ent->port[1].altstatus_addr =
+ probe_ent->port[1].ctl_addr = ATA_SECONDARY_CTL;
+ if (bmdma) {
+ probe_ent->port[1].bmdma_addr = bmdma + 8;
+ if (inb(bmdma + 10) & 0x80)
+ probe_ent->host_set_flags |= ATA_HOST_SIMPLEX;
+ }
+ ata_std_ports(&probe_ent->port[1]);
+ } else
+ probe_ent->dummy_port_mask |= ATA_PORT_SECONDARY;
return probe_ent;
}
@@ -950,6 +928,10 @@ static struct ata_probe_ent *ata_pci_init_legacy_port(struct pci_dev *pdev,
* regions, sets the dma mask, enables bus master mode, and calls
* ata_device_add()
*
+ * ASSUMPTION:
+ * Nobody makes a single channel controller that appears solely as
+ * the secondary legacy port on PCI.
+ *
* LOCKING:
* Inherited from PCI layer (may sleep).
*
@@ -960,7 +942,7 @@ static struct ata_probe_ent *ata_pci_init_legacy_port(struct pci_dev *pdev,
int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_info,
unsigned int n_ports)
{
- struct ata_probe_ent *probe_ent = NULL, *probe_ent2 = NULL;
+ struct ata_probe_ent *probe_ent = NULL;
struct ata_port_info *port[2];
u8 tmp8, mask;
unsigned int legacy_mode = 0;
@@ -1009,35 +991,34 @@ int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_info,
goto err_out;
}
- /* FIXME: Should use platform specific mappers for legacy port ranges */
if (legacy_mode) {
- if (!request_region(0x1f0, 8, "libata")) {
+ if (!request_region(ATA_PRIMARY_CMD, 8, "libata")) {
struct resource *conflict, res;
- res.start = 0x1f0;
- res.end = 0x1f0 + 8 - 1;
+ res.start = ATA_PRIMARY_CMD;
+ res.end = ATA_PRIMARY_CMD + 8 - 1;
conflict = ____request_resource(&ioport_resource, &res);
if (!strcmp(conflict->name, "libata"))
- legacy_mode |= (1 << 0);
+ legacy_mode |= ATA_PORT_PRIMARY;
else {
disable_dev_on_err = 0;
- printk(KERN_WARNING "ata: 0x1f0 IDE port busy\n");
+ printk(KERN_WARNING "ata: 0x%0X IDE port busy\n", ATA_PRIMARY_CMD);
}
} else
- legacy_mode |= (1 << 0);
+ legacy_mode |= ATA_PORT_PRIMARY;
- if (!request_region(0x170, 8, "libata")) {
+ if (!request_region(ATA_SECONDARY_CMD, 8, "libata")) {
struct resource *conflict, res;
- res.start = 0x170;
- res.end = 0x170 + 8 - 1;
+ res.start = ATA_SECONDARY_CMD;
+ res.end = ATA_SECONDARY_CMD + 8 - 1;
conflict = ____request_resource(&ioport_resource, &res);
if (!strcmp(conflict->name, "libata"))
- legacy_mode |= (1 << 1);
+ legacy_mode |= ATA_PORT_SECONDARY;
else {
disable_dev_on_err = 0;
- printk(KERN_WARNING "ata: 0x170 IDE port busy\n");
+ printk(KERN_WARNING "ata: 0x%X IDE port busy\n", ATA_SECONDARY_CMD);
}
} else
- legacy_mode |= (1 << 1);
+ legacy_mode |= ATA_PORT_SECONDARY;
}
/* we have legacy mode, but all ports are unavailable */
@@ -1055,17 +1036,14 @@ int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_info,
goto err_out_regions;
if (legacy_mode) {
- if (legacy_mode & (1 << 0))
- probe_ent = ata_pci_init_legacy_port(pdev, port[0], 0);
- if (legacy_mode & (1 << 1))
- probe_ent2 = ata_pci_init_legacy_port(pdev, port[1], 1);
+ probe_ent = ata_pci_init_legacy_port(pdev, port, legacy_mode);
} else {
if (n_ports == 2)
probe_ent = ata_pci_init_native_mode(pdev, port, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
else
probe_ent = ata_pci_init_native_mode(pdev, port, ATA_PORT_PRIMARY);
}
- if (!probe_ent && !probe_ent2) {
+ if (!probe_ent) {
rc = -ENOMEM;
goto err_out_regions;
}
@@ -1073,35 +1051,17 @@ int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_info,
pci_set_master(pdev);
/* FIXME: check ata_device_add return */
- if (legacy_mode) {
- struct device *dev = &pdev->dev;
- struct ata_host_set *host_set = NULL;
-
- if (legacy_mode & (1 << 0)) {
- ata_device_add(probe_ent);
- host_set = dev_get_drvdata(dev);
- }
-
- if (legacy_mode & (1 << 1)) {
- ata_device_add(probe_ent2);
- if (host_set) {
- host_set->next = dev_get_drvdata(dev);
- dev_set_drvdata(dev, host_set);
- }
- }
- } else
- ata_device_add(probe_ent);
+ ata_device_add(probe_ent);
kfree(probe_ent);
- kfree(probe_ent2);
return 0;
err_out_regions:
- if (legacy_mode & (1 << 0))
- release_region(0x1f0, 8);
- if (legacy_mode & (1 << 1))
- release_region(0x170, 8);
+ if (legacy_mode & ATA_PORT_PRIMARY)
+ release_region(ATA_PRIMARY_CMD, 8);
+ if (legacy_mode & ATA_PORT_SECONDARY)
+ release_region(ATA_SECONDARY_CMD, 8);
pci_release_regions(pdev);
err_out:
if (disable_dev_on_err)
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 16fc2dd8f2f..3f963f206d4 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -1528,7 +1528,7 @@ err_out_nosup:
* Zero on success, negative errno otherwise.
*/
-static int ata_bus_probe(struct ata_port *ap)
+int ata_bus_probe(struct ata_port *ap)
{
unsigned int classes[ATA_MAX_DEVICES];
int tries[ATA_MAX_DEVICES];
@@ -3040,10 +3040,6 @@ static int ata_dma_blacklisted(const struct ata_device *dev)
* known limits including host controller limits, device
* blacklist, etc...
*
- * FIXME: The current implementation limits all transfer modes to
- * the fastest of the lowested device on the port. This is not
- * required on most controllers.
- *
* LOCKING:
* None.
*/
@@ -3052,8 +3048,8 @@ static void ata_dev_xfermask(struct ata_device *dev)
struct ata_port *ap = dev->ap;
struct ata_host_set *hs = ap->host_set;
unsigned long xfer_mask;
- int i;
+ /* controller modes available */
xfer_mask = ata_pack_xfermask(ap->pio_mask,
ap->mwdma_mask, ap->udma_mask);
@@ -3063,34 +3059,20 @@ static void ata_dev_xfermask(struct ata_device *dev)
if (ap->cbl == ATA_CBL_PATA40)
xfer_mask &= ~(0xF8 << ATA_SHIFT_UDMA);
- /* FIXME: Use port-wide xfermask for now */
- for (i = 0; i < ATA_MAX_DEVICES; i++) {
- struct ata_device *d = &ap->device[i];
-
- if (ata_dev_absent(d))
- continue;
-
- if (ata_dev_disabled(d)) {
- /* to avoid violating device selection timing */
- xfer_mask &= ata_pack_xfermask(d->pio_mask,
- UINT_MAX, UINT_MAX);
- continue;
- }
-
- xfer_mask &= ata_pack_xfermask(d->pio_mask,
- d->mwdma_mask, d->udma_mask);
- xfer_mask &= ata_id_xfermask(d->id);
- if (ata_dma_blacklisted(d))
- xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
- }
+ xfer_mask &= ata_pack_xfermask(dev->pio_mask,
+ dev->mwdma_mask, dev->udma_mask);
+ xfer_mask &= ata_id_xfermask(dev->id);
- if (ata_dma_blacklisted(dev))
+ if (ata_dma_blacklisted(dev)) {
+ xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
ata_dev_printk(dev, KERN_WARNING,
"device is on DMA blacklist, disabling DMA\n");
+ }
- if (hs->flags & ATA_HOST_SIMPLEX) {
- if (hs->simplex_claimed)
- xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
+ if ((hs->flags & ATA_HOST_SIMPLEX) && hs->simplex_claimed) {
+ xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
+ ata_dev_printk(dev, KERN_WARNING, "simplex DMA is claimed by "
+ "other device, disabling DMA\n");
}
if (ap->ops->mode_filter)
@@ -5218,41 +5200,29 @@ void ata_dev_init(struct ata_device *dev)
}
/**
- * ata_host_init - Initialize an ata_port structure
+ * ata_port_init - Initialize an ata_port structure
* @ap: Structure to initialize
- * @host: associated SCSI mid-layer structure
* @host_set: Collection of hosts to which @ap belongs
* @ent: Probe information provided by low-level driver
* @port_no: Port number associated with this ata_port
*
- * Initialize a new ata_port structure, and its associated
- * scsi_host.
+ * Initialize a new ata_port structure.
*
* LOCKING:
* Inherited from caller.
*/
-static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host,
- struct ata_host_set *host_set,
- const struct ata_probe_ent *ent, unsigned int port_no)
+void ata_port_init(struct ata_port *ap, struct ata_host_set *host_set,
+ const struct ata_probe_ent *ent, unsigned int port_no)
{
unsigned int i;
- host->max_id = 16;
- host->max_lun = 1;
- host->max_channel = 1;
- host->unique_id = ata_unique_id++;
- host->max_cmd_len = 12;
-
ap->lock = &host_set->lock;
ap->flags = ATA_FLAG_DISABLED;
- ap->id = host->unique_id;
- ap->host = host;
+ ap->id = ata_unique_id++;
ap->ctl = ATA_DEVCTL_OBS;
ap->host_set = host_set;
ap->dev = ent->dev;
ap->port_no = port_no;
- ap->hard_port_no =
- ent->legacy_mode ? ent->hard_port_no : port_no;
ap->pio_mask = ent->pio_mask;
ap->mwdma_mask = ent->mwdma_mask;
ap->udma_mask = ent->udma_mask;
@@ -5298,7 +5268,28 @@ static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host,
}
/**
- * ata_host_add - Attach low-level ATA driver to system
+ * ata_port_init_shost - Initialize SCSI host associated with ATA port
+ * @ap: ATA port to initialize SCSI host for
+ * @shost: SCSI host associated with @ap
+ *
+ * Initialize SCSI host @shost associated with ATA port @ap.
+ *
+ * LOCKING:
+ * Inherited from caller.
+ */
+static void ata_port_init_shost(struct ata_port *ap, struct Scsi_Host *shost)
+{
+ ap->host = shost;
+
+ shost->unique_id = ap->id;
+ shost->max_id = 16;
+ shost->max_lun = 1;
+ shost->max_channel = 1;
+ shost->max_cmd_len = 12;
+}
+
+/**
+ * ata_port_add - Attach low-level ATA driver to system
* @ent: Information provided by low-level driver
* @host_set: Collections of ports to which we add
* @port_no: Port number associated with this host
@@ -5311,14 +5302,12 @@ static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host,
* RETURNS:
* New ata_port on success, for NULL on error.
*/
-
-static struct ata_port * ata_host_add(const struct ata_probe_ent *ent,
+static struct ata_port * ata_port_add(const struct ata_probe_ent *ent,
struct ata_host_set *host_set,
unsigned int port_no)
{
- struct Scsi_Host *host;
+ struct Scsi_Host *shost;
struct ata_port *ap;
- int rc;
DPRINTK("ENTER\n");
@@ -5329,25 +5318,40 @@ static struct ata_port * ata_host_add(const struct ata_probe_ent *ent,
return NULL;
}
- host = scsi_host_alloc(ent->sht, sizeof(struct ata_port));
- if (!host)
+ shost = scsi_host_alloc(ent->sht, sizeof(struct ata_port));
+ if (!shost)
return NULL;
- host->transportt = &ata_scsi_transport_template;
+ shost->transportt = &ata_scsi_transport_template;
- ap = ata_shost_to_port(host);
+ ap = ata_shost_to_port(shost);
- ata_host_init(ap, host, host_set, ent, port_no);
-
- rc = ap->ops->port_start(ap);
- if (rc)
- goto err_out;
+ ata_port_init(ap, host_set, ent, port_no);
+ ata_port_init_shost(ap, shost);
return ap;
+}
-err_out:
- scsi_host_put(host);
- return NULL;
+/**
+ * ata_sas_host_init - Initialize a host_set struct
+ * @host_set: host_set to initialize
+ * @dev: device host_set is attached to
+ * @flags: host_set flags
+ * @ops: port_ops
+ *
+ * LOCKING:
+ * PCI/etc. bus probe sem.
+ *
+ */
+
+void ata_host_set_init(struct ata_host_set *host_set,
+ struct device *dev, unsigned long flags,
+ const struct ata_port_operations *ops)
+{
+ spin_lock_init(&host_set->lock);
+ host_set->dev = dev;
+ host_set->flags = flags;
+ host_set->ops = ops;
}
/**
@@ -5370,7 +5374,7 @@ err_out:
*/
int ata_device_add(const struct ata_probe_ent *ent)
{
- unsigned int count = 0, i;
+ unsigned int i;
struct device *dev = ent->dev;
struct ata_host_set *host_set;
int rc;
@@ -5381,50 +5385,65 @@ int ata_device_add(const struct ata_probe_ent *ent)
(ent->n_ports * sizeof(void *)), GFP_KERNEL);
if (!host_set)
return 0;
- spin_lock_init(&host_set->lock);
- host_set->dev = dev;
+ ata_host_set_init(host_set, dev, ent->host_set_flags, ent->port_ops);
host_set->n_ports = ent->n_ports;
host_set->irq = ent->irq;
+ host_set->irq2 = ent->irq2;
host_set->mmio_base = ent->mmio_base;
host_set->private_data = ent->private_data;
- host_set->ops = ent->port_ops;
- host_set->flags = ent->host_set_flags;
/* register each port bound to this device */
- for (i = 0; i < ent->n_ports; i++) {
+ for (i = 0; i < host_set->n_ports; i++) {
struct ata_port *ap;
unsigned long xfer_mode_mask;
+ int irq_line = ent->irq;
- ap = ata_host_add(ent, host_set, i);
+ ap = ata_port_add(ent, host_set, i);
if (!ap)
goto err_out;
host_set->ports[i] = ap;
+
+ /* dummy? */
+ if (ent->dummy_port_mask & (1 << i)) {
+ ata_port_printk(ap, KERN_INFO, "DUMMY\n");
+ ap->ops = &ata_dummy_port_ops;
+ continue;
+ }
+
+ /* start port */
+ rc = ap->ops->port_start(ap);
+ if (rc) {
+ host_set->ports[i] = NULL;
+ scsi_host_put(ap->host);
+ goto err_out;
+ }
+
+ /* Report the secondary IRQ for second channel legacy */
+ if (i == 1 && ent->irq2)
+ irq_line = ent->irq2;
+
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 */
ata_port_printk(ap, KERN_INFO, "%cATA max %s cmd 0x%lX "
- "ctl 0x%lX bmdma 0x%lX irq %lu\n",
+ "ctl 0x%lX bmdma 0x%lX irq %d\n",
ap->flags & ATA_FLAG_SATA ? 'S' : 'P',
ata_mode_string(xfer_mode_mask),
ap->ioaddr.cmd_addr,
ap->ioaddr.ctl_addr,
ap->ioaddr.bmdma_addr,
- ent->irq);
+ irq_line);
ata_chk_status(ap);
host_set->ops->irq_clear(ap);
ata_eh_freeze_port(ap); /* freeze port before requesting IRQ */
- count++;
}
- if (!count)
- goto err_free_ret;
-
- /* obtain irq, that is shared between channels */
+ /* obtain irq, that may be shared between channels */
rc = request_irq(ent->irq, ent->port_ops->irq_handler, ent->irq_flags,
DRV_NAME, host_set);
if (rc) {
@@ -5433,15 +5452,28 @@ int ata_device_add(const struct ata_probe_ent *ent)
goto err_out;
}
+ /* do we have a second IRQ for the other channel, eg legacy mode */
+ if (ent->irq2) {
+ /* We will get weird core code crashes later if this is true
+ so trap it now */
+ BUG_ON(ent->irq == ent->irq2);
+
+ rc = request_irq(ent->irq2, ent->port_ops->irq_handler, ent->irq_flags,
+ DRV_NAME, host_set);
+ if (rc) {
+ dev_printk(KERN_ERR, dev, "irq %lu request failed: %d\n",
+ ent->irq2, rc);
+ goto err_out_free_irq;
+ }
+ }
+
/* perform each probe synchronously */
DPRINTK("probe begin\n");
- for (i = 0; i < count; i++) {
- struct ata_port *ap;
+ for (i = 0; i < host_set->n_ports; i++) {
+ struct ata_port *ap = host_set->ports[i];
u32 scontrol;
int rc;
- ap = host_set->ports[i];
-
/* init sata_spd_limit to the current value */
if (sata_scr_read(ap, SCR_CONTROL, &scontrol) == 0) {
int spd = (scontrol >> 4) & 0xf;
@@ -5497,7 +5529,7 @@ int ata_device_add(const struct ata_probe_ent *ent)
/* probes are done, now scan each port's disk(s) */
DPRINTK("host probe begin\n");
- for (i = 0; i < count; i++) {
+ for (i = 0; i < host_set->n_ports; i++) {
struct ata_port *ap = host_set->ports[i];
ata_scsi_scan_host(ap);
@@ -5508,15 +5540,17 @@ int ata_device_add(const struct ata_probe_ent *ent)
VPRINTK("EXIT, returning %u\n", ent->n_ports);
return ent->n_ports; /* success */
+err_out_free_irq:
+ free_irq(ent->irq, host_set);
err_out:
- for (i = 0; i < count; i++) {
+ for (i = 0; i < host_set->n_ports; i++) {
struct ata_port *ap = host_set->ports[i];
if (ap) {
ap->ops->port_stop(ap);
scsi_host_put(ap->host);
}
}
-err_free_ret:
+
kfree(host_set);
VPRINTK("EXIT, returning 0\n");
return 0;
@@ -5599,6 +5633,8 @@ void ata_host_set_remove(struct ata_host_set *host_set)
ata_port_detach(host_set->ports[i]);
free_irq(host_set->irq, host_set);
+ if (host_set->irq2)
+ free_irq(host_set->irq2, host_set);
for (i = 0; i < host_set->n_ports; i++) {
struct ata_port *ap = host_set->ports[i];
@@ -5608,10 +5644,11 @@ void ata_host_set_remove(struct ata_host_set *host_set)
if ((ap->flags & ATA_FLAG_NO_LEGACY) == 0) {
struct ata_ioports *ioaddr = &ap->ioaddr;
- if (ioaddr->cmd_addr == 0x1f0)
- release_region(0x1f0, 8);
- else if (ioaddr->cmd_addr == 0x170)
- release_region(0x170, 8);
+ /* FIXME: Add -ac IDE pci mods to remove these special cases */
+ if (ioaddr->cmd_addr == ATA_PRIMARY_CMD)
+ release_region(ATA_PRIMARY_CMD, 8);
+ else if (ioaddr->cmd_addr == ATA_SECONDARY_CMD)
+ release_region(ATA_SECONDARY_CMD, 8);
}
scsi_host_put(ap->host);
@@ -5650,6 +5687,31 @@ int ata_scsi_release(struct Scsi_Host *host)
return 1;
}
+struct ata_probe_ent *
+ata_probe_ent_alloc(struct device *dev, const struct ata_port_info *port)
+{
+ struct ata_probe_ent *probe_ent;
+
+ probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL);
+ if (!probe_ent) {
+ printk(KERN_ERR DRV_NAME "(%s): out of memory\n",
+ kobject_name(&(dev->kobj)));
+ return NULL;
+ }
+
+ INIT_LIST_HEAD(&probe_ent->node);
+ probe_ent->dev = dev;
+
+ probe_ent->sht = port->sht;
+ probe_ent->host_flags = port->host_flags;
+ probe_ent->pio_mask = port->pio_mask;
+ probe_ent->mwdma_mask = port->mwdma_mask;
+ probe_ent->udma_mask = port->udma_mask;
+ probe_ent->port_ops = port->port_ops;
+
+ return probe_ent;
+}
+
/**
* ata_std_ports - initialize ioaddr with standard port offsets.
* @ioaddr: IO address structure to be initialized
@@ -5704,11 +5766,8 @@ void ata_pci_remove_one (struct pci_dev *pdev)
{
struct device *dev = pci_dev_to_dev(pdev);
struct ata_host_set *host_set = dev_get_drvdata(dev);
- struct ata_host_set *host_set2 = host_set->next;
ata_host_set_remove(host_set);
- if (host_set2)
- ata_host_set_remove(host_set2);
pci_release_regions(pdev);
pci_disable_device(pdev);
@@ -5749,11 +5808,11 @@ int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits)
return (tmp == bits->val) ? 1 : 0;
}
-void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t state)
+void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t mesg)
{
pci_save_state(pdev);
- if (state.event == PM_EVENT_SUSPEND) {
+ if (mesg.event == PM_EVENT_SUSPEND) {
pci_disable_device(pdev);
pci_set_power_state(pdev, PCI_D3hot);
}
@@ -5767,24 +5826,16 @@ void ata_pci_device_do_resume(struct pci_dev *pdev)
pci_set_master(pdev);
}
-int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t state)
+int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
{
struct ata_host_set *host_set = dev_get_drvdata(&pdev->dev);
int rc = 0;
- rc = ata_host_set_suspend(host_set, state);
+ rc = ata_host_set_suspend(host_set, mesg);
if (rc)
return rc;
- if (host_set->next) {
- rc = ata_host_set_suspend(host_set->next, state);
- if (rc) {
- ata_host_set_resume(host_set);
- return rc;
- }
- }
-
- ata_pci_device_do_suspend(pdev, state);
+ ata_pci_device_do_suspend(pdev, mesg);
return 0;
}
@@ -5795,9 +5846,6 @@ int ata_pci_device_resume(struct pci_dev *pdev)
ata_pci_device_do_resume(pdev);
ata_host_set_resume(host_set);
- if (host_set->next)
- ata_host_set_resume(host_set->next);
-
return 0;
}
#endif /* CONFIG_PCI */
@@ -5897,6 +5945,39 @@ u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val,
}
/*
+ * Dummy port_ops
+ */
+static void ata_dummy_noret(struct ata_port *ap) { }
+static int ata_dummy_ret0(struct ata_port *ap) { return 0; }
+static void ata_dummy_qc_noret(struct ata_queued_cmd *qc) { }
+
+static u8 ata_dummy_check_status(struct ata_port *ap)
+{
+ return ATA_DRDY;
+}
+
+static unsigned int ata_dummy_qc_issue(struct ata_queued_cmd *qc)
+{
+ return AC_ERR_SYSTEM;
+}
+
+const struct ata_port_operations ata_dummy_port_ops = {
+ .port_disable = ata_port_disable,
+ .check_status = ata_dummy_check_status,
+ .check_altstatus = ata_dummy_check_status,
+ .dev_select = ata_noop_dev_select,
+ .qc_prep = ata_noop_qc_prep,
+ .qc_issue = ata_dummy_qc_issue,
+ .freeze = ata_dummy_noret,
+ .thaw = ata_dummy_noret,
+ .error_handler = ata_dummy_noret,
+ .post_internal_cmd = ata_dummy_qc_noret,
+ .irq_clear = ata_dummy_noret,
+ .port_start = ata_dummy_ret0,
+ .port_stop = ata_dummy_noret,
+};
+
+/*
* libata is essentially a library of internal helper functions for
* low-level ATA host controller drivers. As such, the API/ABI is
* likely to change as new drivers are added and updated.
@@ -5906,8 +5987,10 @@ u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val,
EXPORT_SYMBOL_GPL(sata_deb_timing_normal);
EXPORT_SYMBOL_GPL(sata_deb_timing_hotplug);
EXPORT_SYMBOL_GPL(sata_deb_timing_long);
+EXPORT_SYMBOL_GPL(ata_dummy_port_ops);
EXPORT_SYMBOL_GPL(ata_std_bios_param);
EXPORT_SYMBOL_GPL(ata_std_ports);
+EXPORT_SYMBOL_GPL(ata_host_set_init);
EXPORT_SYMBOL_GPL(ata_device_add);
EXPORT_SYMBOL_GPL(ata_port_detach);
EXPORT_SYMBOL_GPL(ata_host_set_remove);
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index e92c31d698f..d168e341366 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -400,7 +400,7 @@ void ata_dump_status(unsigned id, struct ata_taskfile *tf)
/**
* ata_scsi_device_suspend - suspend ATA device associated with sdev
* @sdev: the SCSI device to suspend
- * @state: target power management state
+ * @mesg: target power management message
*
* Request suspend EH action on the ATA device associated with
* @sdev and wait for the operation to complete.
@@ -411,7 +411,7 @@ void ata_dump_status(unsigned id, struct ata_taskfile *tf)
* RETURNS:
* 0 on success, -errno otherwise.
*/
-int ata_scsi_device_suspend(struct scsi_device *sdev, pm_message_t state)
+int ata_scsi_device_suspend(struct scsi_device *sdev, pm_message_t mesg)
{
struct ata_port *ap = ata_shost_to_port(sdev->host);
struct ata_device *dev = ata_scsi_find_dev(ap, sdev);
@@ -438,7 +438,7 @@ int ata_scsi_device_suspend(struct scsi_device *sdev, pm_message_t state)
/* request suspend */
action = ATA_EH_SUSPEND;
- if (state.event != PM_EVENT_SUSPEND)
+ if (mesg.event != PM_EVENT_SUSPEND)
action |= ATA_EH_PM_FREEZE;
ap->eh_info.dev_action[dev->devno] |= action;
ap->eh_info.flags |= ATA_EHI_QUIET;
@@ -463,7 +463,7 @@ int ata_scsi_device_suspend(struct scsi_device *sdev, pm_message_t state)
spin_unlock_irqrestore(ap->lock, flags);
out:
if (rc == 0)
- sdev->sdev_gendev.power.power_state = state;
+ sdev->sdev_gendev.power.power_state = mesg;
return rc;
}
@@ -3171,3 +3171,152 @@ void ata_scsi_dev_rescan(void *data)
scsi_rescan_device(&(dev->sdev->sdev_gendev));
}
}
+
+/**
+ * ata_sas_port_alloc - Allocate port for a SAS attached SATA device
+ * @pdev: PCI device that the scsi device is attached to
+ * @port_info: Information from low-level host driver
+ * @host: SCSI host that the scsi device is attached to
+ *
+ * LOCKING:
+ * PCI/etc. bus probe sem.
+ *
+ * RETURNS:
+ * ata_port pointer on success / NULL on failure.
+ */
+
+struct ata_port *ata_sas_port_alloc(struct ata_host_set *host_set,
+ struct ata_port_info *port_info,
+ struct Scsi_Host *host)
+{
+ struct ata_port *ap = kzalloc(sizeof(*ap), GFP_KERNEL);
+ struct ata_probe_ent *ent;
+
+ if (!ap)
+ return NULL;
+
+ ent = ata_probe_ent_alloc(host_set->dev, port_info);
+ if (!ent) {
+ kfree(ap);
+ return NULL;
+ }
+
+ ata_port_init(ap, host_set, ent, 0);
+ ap->lock = host->host_lock;
+ kfree(ent);
+ return ap;
+}
+EXPORT_SYMBOL_GPL(ata_sas_port_alloc);
+
+/**
+ * ata_sas_port_start - Set port up for dma.
+ * @ap: Port to initialize
+ *
+ * Called just after data structures for each port are
+ * initialized. Allocates DMA pad.
+ *
+ * May be used as the port_start() entry in ata_port_operations.
+ *
+ * LOCKING:
+ * Inherited from caller.
+ */
+int ata_sas_port_start(struct ata_port *ap)
+{
+ return ata_pad_alloc(ap, ap->dev);
+}
+EXPORT_SYMBOL_GPL(ata_sas_port_start);
+
+/**
+ * ata_port_stop - Undo ata_sas_port_start()
+ * @ap: Port to shut down
+ *
+ * Frees the DMA pad.
+ *
+ * May be used as the port_stop() entry in ata_port_operations.
+ *
+ * LOCKING:
+ * Inherited from caller.
+ */
+
+void ata_sas_port_stop(struct ata_port *ap)
+{
+ ata_pad_free(ap, ap->dev);
+}
+EXPORT_SYMBOL_GPL(ata_sas_port_stop);
+
+/**
+ * ata_sas_port_init - Initialize a SATA device
+ * @ap: SATA port to initialize
+ *
+ * LOCKING:
+ * PCI/etc. bus probe sem.
+ *
+ * RETURNS:
+ * Zero on success, non-zero on error.
+ */
+
+int ata_sas_port_init(struct ata_port *ap)
+{
+ int rc = ap->ops->port_start(ap);
+
+ if (!rc)
+ rc = ata_bus_probe(ap);
+
+ return rc;
+}
+EXPORT_SYMBOL_GPL(ata_sas_port_init);
+
+/**
+ * ata_sas_port_destroy - Destroy a SATA port allocated by ata_sas_port_alloc
+ * @ap: SATA port to destroy
+ *
+ */
+
+void ata_sas_port_destroy(struct ata_port *ap)
+{
+ ap->ops->port_stop(ap);
+ kfree(ap);
+}
+EXPORT_SYMBOL_GPL(ata_sas_port_destroy);
+
+/**
+ * ata_sas_slave_configure - Default slave_config routine for libata devices
+ * @sdev: SCSI device to configure
+ * @ap: ATA port to which SCSI device is attached
+ *
+ * RETURNS:
+ * Zero.
+ */
+
+int ata_sas_slave_configure(struct scsi_device *sdev, struct ata_port *ap)
+{
+ ata_scsi_sdev_config(sdev);
+ ata_scsi_dev_config(sdev, ap->device);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ata_sas_slave_configure);
+
+/**
+ * ata_sas_queuecmd - Issue SCSI cdb to libata-managed device
+ * @cmd: SCSI command to be sent
+ * @done: Completion function, called when command is complete
+ * @ap: ATA port to which the command is being sent
+ *
+ * RETURNS:
+ * Zero.
+ */
+
+int ata_sas_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *),
+ struct ata_port *ap)
+{
+ ata_scsi_dump_cdb(ap, cmd);
+
+ if (likely(ata_scsi_dev_enabled(ap->device)))
+ __ata_scsi_queuecmd(cmd, done, ap->device);
+ else {
+ cmd->result = (DID_BAD_TARGET << 16);
+ done(cmd);
+ }
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ata_sas_queuecmd);
diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h
index c325679d9b5..d4a4f82360e 100644
--- a/drivers/scsi/libata.h
+++ b/drivers/scsi/libata.h
@@ -69,6 +69,10 @@ extern int ata_flush_cache(struct ata_device *dev);
extern void ata_dev_init(struct ata_device *dev);
extern int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg);
extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg);
+extern void ata_port_init(struct ata_port *ap, struct ata_host_set *host_set,
+ const struct ata_probe_ent *ent, unsigned int port_no);
+extern struct ata_probe_ent *ata_probe_ent_alloc(struct device *dev,
+ const struct ata_port_info *port);
/* libata-scsi.c */
@@ -107,6 +111,7 @@ extern void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
u8 *rbuf, unsigned int buflen));
extern void ata_schedule_scsi_eh(struct Scsi_Host *shost);
extern void ata_scsi_dev_rescan(void *data);
+extern int ata_bus_probe(struct ata_port *ap);
/* libata-eh.c */
extern enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd);
diff --git a/drivers/scsi/sata_sil.c b/drivers/scsi/sata_sil.c
index d0a85073ebf..f4e262b06cf 100644
--- a/drivers/scsi/sata_sil.c
+++ b/drivers/scsi/sata_sil.c
@@ -141,12 +141,8 @@ static const struct sil_drivelist {
{ "ST330013AS", SIL_QUIRK_MOD15WRITE },
{ "ST340017AS", SIL_QUIRK_MOD15WRITE },
{ "ST360015AS", SIL_QUIRK_MOD15WRITE },
- { "ST380013AS", SIL_QUIRK_MOD15WRITE },
{ "ST380023AS", SIL_QUIRK_MOD15WRITE },
{ "ST3120023AS", SIL_QUIRK_MOD15WRITE },
- { "ST3160023AS", SIL_QUIRK_MOD15WRITE },
- { "ST3120026AS", SIL_QUIRK_MOD15WRITE },
- { "ST3200822AS", SIL_QUIRK_MOD15WRITE },
{ "ST340014ASL", SIL_QUIRK_MOD15WRITE },
{ "ST360014ASL", SIL_QUIRK_MOD15WRITE },
{ "ST380011ASL", SIL_QUIRK_MOD15WRITE },
diff --git a/include/asm-alpha/libata-portmap.h b/include/asm-alpha/libata-portmap.h
new file mode 100644
index 00000000000..75484ef0c74
--- /dev/null
+++ b/include/asm-alpha/libata-portmap.h
@@ -0,0 +1 @@
+#include <asm-generic/libata-portmap.h>
diff --git a/include/asm-generic/libata-portmap.h b/include/asm-generic/libata-portmap.h
new file mode 100644
index 00000000000..9202fd02d5b
--- /dev/null
+++ b/include/asm-generic/libata-portmap.h
@@ -0,0 +1,12 @@
+#ifndef __ASM_GENERIC_LIBATA_PORTMAP_H
+#define __ASM_GENERIC_LIBATA_PORTMAP_H
+
+#define ATA_PRIMARY_CMD 0x1F0
+#define ATA_PRIMARY_CTL 0x3F6
+#define ATA_PRIMARY_IRQ 14
+
+#define ATA_SECONDARY_CMD 0x170
+#define ATA_SECONDARY_CTL 0x376
+#define ATA_SECONDARY_IRQ 15
+
+#endif
diff --git a/include/asm-i386/libata-portmap.h b/include/asm-i386/libata-portmap.h
new file mode 100644
index 00000000000..75484ef0c74
--- /dev/null
+++ b/include/asm-i386/libata-portmap.h
@@ -0,0 +1 @@
+#include <asm-generic/libata-portmap.h>
diff --git a/include/asm-ia64/libata-portmap.h b/include/asm-ia64/libata-portmap.h
new file mode 100644
index 00000000000..75484ef0c74
--- /dev/null
+++ b/include/asm-ia64/libata-portmap.h
@@ -0,0 +1 @@
+#include <asm-generic/libata-portmap.h>
diff --git a/include/asm-powerpc/libata-portmap.h b/include/asm-powerpc/libata-portmap.h
new file mode 100644
index 00000000000..75484ef0c74
--- /dev/null
+++ b/include/asm-powerpc/libata-portmap.h
@@ -0,0 +1 @@
+#include <asm-generic/libata-portmap.h>
diff --git a/include/asm-sparc/libata-portmap.h b/include/asm-sparc/libata-portmap.h
new file mode 100644
index 00000000000..75484ef0c74
--- /dev/null
+++ b/include/asm-sparc/libata-portmap.h
@@ -0,0 +1 @@
+#include <asm-generic/libata-portmap.h>
diff --git a/include/asm-sparc64/libata-portmap.h b/include/asm-sparc64/libata-portmap.h
new file mode 100644
index 00000000000..75484ef0c74
--- /dev/null
+++ b/include/asm-sparc64/libata-portmap.h
@@ -0,0 +1 @@
+#include <asm-generic/libata-portmap.h>
diff --git a/include/asm-x86_64/libata-portmap.h b/include/asm-x86_64/libata-portmap.h
new file mode 100644
index 00000000000..75484ef0c74
--- /dev/null
+++ b/include/asm-x86_64/libata-portmap.h
@@ -0,0 +1 @@
+#include <asm-generic/libata-portmap.h>
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 3671af86969..8d708a3d505 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -40,6 +40,8 @@ enum {
ATA_MAX_DEVICES = 2, /* per bus/port */
ATA_MAX_PRD = 256, /* we could make these 256/256 */
ATA_SECT_SIZE = 512,
+ ATA_MAX_SECTORS = 256,
+ ATA_MAX_SECTORS_LBA48 = 65535,/* TODO: 65536? */
ATA_ID_WORDS = 256,
ATA_ID_SERNO_OFS = 10,
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 66c3100c2b9..060da736b3a 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -36,6 +36,8 @@
#include <linux/workqueue.h>
#include <scsi/scsi_host.h>
+#include <asm/libata-portmap.h>
+
/*
* compile-time options: to be removed as soon as all the drivers are
* converted to the new debugging mechanism
@@ -112,8 +114,6 @@ enum {
/* tag ATA_MAX_QUEUE - 1 is reserved for internal commands */
ATA_MAX_QUEUE = 32,
ATA_TAG_INTERNAL = ATA_MAX_QUEUE - 1,
- ATA_MAX_SECTORS = 200, /* FIXME */
- ATA_MAX_SECTORS_LBA48 = 65535,
ATA_MAX_BUS = 2,
ATA_DEF_BUSY_WAIT = 10000,
ATA_SHORT_PAUSE = (HZ >> 6) + 1,
@@ -350,12 +350,12 @@ struct ata_probe_ent {
struct scsi_host_template *sht;
struct ata_ioports port[ATA_MAX_PORTS];
unsigned int n_ports;
- unsigned int hard_port_no;
+ unsigned int dummy_port_mask;
unsigned int pio_mask;
unsigned int mwdma_mask;
unsigned int udma_mask;
- unsigned int legacy_mode;
unsigned long irq;
+ unsigned long irq2;
unsigned int irq_flags;
unsigned long host_flags;
unsigned long host_set_flags;
@@ -367,6 +367,7 @@ struct ata_host_set {
spinlock_t lock;
struct device *dev;
unsigned long irq;
+ unsigned long irq2;
void __iomem *mmio_base;
unsigned int n_ports;
void *private_data;
@@ -374,7 +375,6 @@ struct ata_host_set {
unsigned long flags;
int simplex_claimed; /* Keep seperate in case we
ever need to do this locked */
- struct ata_host_set *next; /* for legacy mode */
struct ata_port *ports[0];
};
@@ -505,7 +505,6 @@ struct ata_port {
unsigned int pflags; /* ATA_PFLAG_xxx */
unsigned int id; /* unique id req'd by scsi midlyr */
unsigned int port_no; /* unique port #; from zero */
- unsigned int hard_port_no; /* hardware port #; from zero */
struct ata_prd *prd; /* our SG list */
dma_addr_t prd_dma; /* and its DMA mapping */
@@ -649,6 +648,8 @@ extern const unsigned long sata_deb_timing_normal[];
extern const unsigned long sata_deb_timing_hotplug[];
extern const unsigned long sata_deb_timing_long[];
+extern const struct ata_port_operations ata_dummy_port_ops;
+
static inline const unsigned long *
sata_ehc_deb_timing(struct ata_eh_context *ehc)
{
@@ -658,6 +659,11 @@ sata_ehc_deb_timing(struct ata_eh_context *ehc)
return sata_deb_timing_normal;
}
+static inline int ata_port_is_dummy(struct ata_port *ap)
+{
+ return ap->ops == &ata_dummy_port_ops;
+}
+
extern void ata_port_probe(struct ata_port *);
extern void __sata_phy_reset(struct ata_port *ap);
extern void sata_phy_reset(struct ata_port *ap);
@@ -676,19 +682,30 @@ extern void ata_std_ports(struct ata_ioports *ioaddr);
extern int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_info,
unsigned int n_ports);
extern void ata_pci_remove_one (struct pci_dev *pdev);
-extern void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t state);
+extern void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t mesg);
extern void ata_pci_device_do_resume(struct pci_dev *pdev);
-extern int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t state);
+extern int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
extern int ata_pci_device_resume(struct pci_dev *pdev);
extern int ata_pci_clear_simplex(struct pci_dev *pdev);
#endif /* CONFIG_PCI */
extern int ata_device_add(const struct ata_probe_ent *ent);
extern void ata_port_detach(struct ata_port *ap);
+extern void ata_host_set_init(struct ata_host_set *, struct device *,
+ unsigned long, const struct ata_port_operations *);
extern void ata_host_set_remove(struct ata_host_set *host_set);
extern int ata_scsi_detect(struct scsi_host_template *sht);
extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg);
extern int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *));
extern int ata_scsi_release(struct Scsi_Host *host);
+extern void ata_sas_port_destroy(struct ata_port *);
+extern struct ata_port *ata_sas_port_alloc(struct ata_host_set *,
+ struct ata_port_info *, struct Scsi_Host *);
+extern int ata_sas_port_init(struct ata_port *);
+extern int ata_sas_port_start(struct ata_port *ap);
+extern void ata_sas_port_stop(struct ata_port *ap);
+extern int ata_sas_slave_configure(struct scsi_device *, struct ata_port *);
+extern int ata_sas_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *),
+ struct ata_port *ap);
extern unsigned int ata_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc);
extern int sata_scr_valid(struct ata_port *ap);
extern int sata_scr_read(struct ata_port *ap, int reg, u32 *val);
@@ -697,7 +714,7 @@ extern int sata_scr_write_flush(struct ata_port *ap, int reg, u32 val);
extern int ata_port_online(struct ata_port *ap);
extern int ata_port_offline(struct ata_port *ap);
extern int ata_scsi_device_resume(struct scsi_device *);
-extern int ata_scsi_device_suspend(struct scsi_device *, pm_message_t state);
+extern int ata_scsi_device_suspend(struct scsi_device *, pm_message_t mesg);
extern int ata_host_set_suspend(struct ata_host_set *host_set,
pm_message_t mesg);
extern void ata_host_set_resume(struct ata_host_set *host_set);
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-30 00:19:52 +0000