#include "libata.h"
+#define DRV_VERSION "2.20" /* must be exactly four chars */
+
+
/* debounce timing parameters in msecs { interval, duration, timeout } */
const unsigned long sata_deb_timing_normal[] = { 5, 100, 2000 };
const unsigned long sata_deb_timing_hotplug[] = { 25, 500, 2000 };
static unsigned int ata_dev_set_xfermode(struct ata_device *dev);
static void ata_dev_xfermask(struct ata_device *dev);
-static unsigned int ata_unique_id = 1;
+static unsigned int ata_print_id = 1;
static struct workqueue_struct *ata_wq;
struct workqueue_struct *ata_aux_wq;
module_param(ata_probe_timeout, int, 0444);
MODULE_PARM_DESC(ata_probe_timeout, "Set ATA probing timeout (seconds)");
+int libata_noacpi = 1;
+module_param_named(noacpi, libata_noacpi, int, 0444);
+MODULE_PARM_DESC(noacpi, "Disables the use of ACPI in suspend/resume when set");
+
MODULE_AUTHOR("Jeff Garzik");
MODULE_DESCRIPTION("Library module for ATA devices");
MODULE_LICENSE("GPL");
/**
* ata_rwcmd_protocol - set taskfile r/w commands and protocol
- * @qc: command to examine and configure
+ * @tf: command to examine and configure
+ * @dev: device tf belongs to
*
* Examine the device configuration and tf->flags to calculate
* the proper read/write commands and protocol to use.
* LOCKING:
* caller.
*/
-int ata_rwcmd_protocol(struct ata_queued_cmd *qc)
+static int ata_rwcmd_protocol(struct ata_taskfile *tf, struct ata_device *dev)
{
- struct ata_taskfile *tf = &qc->tf;
- struct ata_device *dev = qc->dev;
u8 cmd;
int index, fua, lba48, write;
if (dev->flags & ATA_DFLAG_PIO) {
tf->protocol = ATA_PROT_PIO;
index = dev->multi_count ? 0 : 8;
- } else if (lba48 && (qc->ap->flags & ATA_FLAG_PIO_LBA48)) {
+ } else if (lba48 && (dev->ap->flags & ATA_FLAG_PIO_LBA48)) {
/* Unable to use DMA due to host limitation */
tf->protocol = ATA_PROT_PIO;
index = dev->multi_count ? 0 : 8;
}
/**
+ * ata_tf_read_block - Read block address from ATA taskfile
+ * @tf: ATA taskfile of interest
+ * @dev: ATA device @tf belongs to
+ *
+ * LOCKING:
+ * None.
+ *
+ * Read block address from @tf. This function can handle all
+ * three address formats - LBA, LBA48 and CHS. tf->protocol and
+ * flags select the address format to use.
+ *
+ * RETURNS:
+ * Block address read from @tf.
+ */
+u64 ata_tf_read_block(struct ata_taskfile *tf, struct ata_device *dev)
+{
+ u64 block = 0;
+
+ if (tf->flags & ATA_TFLAG_LBA) {
+ if (tf->flags & ATA_TFLAG_LBA48) {
+ block |= (u64)tf->hob_lbah << 40;
+ block |= (u64)tf->hob_lbam << 32;
+ block |= tf->hob_lbal << 24;
+ } else
+ block |= (tf->device & 0xf) << 24;
+
+ block |= tf->lbah << 16;
+ block |= tf->lbam << 8;
+ block |= tf->lbal;
+ } else {
+ u32 cyl, head, sect;
+
+ cyl = tf->lbam | (tf->lbah << 8);
+ head = tf->device & 0xf;
+ sect = tf->lbal;
+
+ block = (cyl * dev->heads + head) * dev->sectors + sect;
+ }
+
+ return block;
+}
+
+/**
+ * ata_build_rw_tf - Build ATA taskfile for given read/write request
+ * @tf: Target ATA taskfile
+ * @dev: ATA device @tf belongs to
+ * @block: Block address
+ * @n_block: Number of blocks
+ * @tf_flags: RW/FUA etc...
+ * @tag: tag
+ *
+ * LOCKING:
+ * None.
+ *
+ * Build ATA taskfile @tf for read/write request described by
+ * @block, @n_block, @tf_flags and @tag on @dev.
+ *
+ * RETURNS:
+ *
+ * 0 on success, -ERANGE if the request is too large for @dev,
+ * -EINVAL if the request is invalid.
+ */
+int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev,
+ u64 block, u32 n_block, unsigned int tf_flags,
+ unsigned int tag)
+{
+ tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
+ tf->flags |= tf_flags;
+
+ if (ata_ncq_enabled(dev) && likely(tag != ATA_TAG_INTERNAL)) {
+ /* yay, NCQ */
+ if (!lba_48_ok(block, n_block))
+ return -ERANGE;
+
+ tf->protocol = ATA_PROT_NCQ;
+ tf->flags |= ATA_TFLAG_LBA | ATA_TFLAG_LBA48;
+
+ if (tf->flags & ATA_TFLAG_WRITE)
+ tf->command = ATA_CMD_FPDMA_WRITE;
+ else
+ tf->command = ATA_CMD_FPDMA_READ;
+
+ tf->nsect = tag << 3;
+ tf->hob_feature = (n_block >> 8) & 0xff;
+ tf->feature = n_block & 0xff;
+
+ tf->hob_lbah = (block >> 40) & 0xff;
+ tf->hob_lbam = (block >> 32) & 0xff;
+ tf->hob_lbal = (block >> 24) & 0xff;
+ tf->lbah = (block >> 16) & 0xff;
+ tf->lbam = (block >> 8) & 0xff;
+ tf->lbal = block & 0xff;
+
+ tf->device = 1 << 6;
+ if (tf->flags & ATA_TFLAG_FUA)
+ tf->device |= 1 << 7;
+ } else if (dev->flags & ATA_DFLAG_LBA) {
+ tf->flags |= ATA_TFLAG_LBA;
+
+ if (lba_28_ok(block, n_block)) {
+ /* use LBA28 */
+ tf->device |= (block >> 24) & 0xf;
+ } else if (lba_48_ok(block, n_block)) {
+ if (!(dev->flags & ATA_DFLAG_LBA48))
+ return -ERANGE;
+
+ /* use LBA48 */
+ tf->flags |= ATA_TFLAG_LBA48;
+
+ tf->hob_nsect = (n_block >> 8) & 0xff;
+
+ tf->hob_lbah = (block >> 40) & 0xff;
+ tf->hob_lbam = (block >> 32) & 0xff;
+ tf->hob_lbal = (block >> 24) & 0xff;
+ } else
+ /* request too large even for LBA48 */
+ return -ERANGE;
+
+ if (unlikely(ata_rwcmd_protocol(tf, dev) < 0))
+ return -EINVAL;
+
+ tf->nsect = n_block & 0xff;
+
+ tf->lbah = (block >> 16) & 0xff;
+ tf->lbam = (block >> 8) & 0xff;
+ tf->lbal = block & 0xff;
+
+ tf->device |= ATA_LBA;
+ } else {
+ /* CHS */
+ u32 sect, head, cyl, track;
+
+ /* The request -may- be too large for CHS addressing. */
+ if (!lba_28_ok(block, n_block))
+ return -ERANGE;
+
+ if (unlikely(ata_rwcmd_protocol(tf, dev) < 0))
+ return -EINVAL;
+
+ /* Convert LBA to CHS */
+ track = (u32)block / dev->sectors;
+ cyl = track / dev->heads;
+ head = track % dev->heads;
+ sect = (u32)block % dev->sectors + 1;
+
+ DPRINTK("block %u track %u cyl %u head %u sect %u\n",
+ (u32)block, track, cyl, head, sect);
+
+ /* Check whether the converted CHS can fit.
+ Cylinder: 0-65535
+ Head: 0-15
+ Sector: 1-255*/
+ if ((cyl >> 16) || (head >> 4) || (sect >> 8) || (!sect))
+ return -ERANGE;
+
+ tf->nsect = n_block & 0xff; /* Sector count 0 means 256 sectors */
+ tf->lbal = sect;
+ tf->lbam = cyl;
+ tf->lbah = cyl >> 8;
+ tf->device |= head;
+ }
+
+ return 0;
+}
+
+/**
* ata_pack_xfermask - Pack pio, mwdma and udma masks into xfer_mask
* @pio_mask: pio_mask
* @mwdma_mask: mwdma_mask
{
if (ata_dev_enabled(dev) && ata_msg_drv(dev->ap)) {
ata_dev_printk(dev, KERN_WARNING, "disabled\n");
+ ata_down_xfermask_limit(dev, ATA_DNXFER_FORCE_PIO0 |
+ ATA_DNXFER_QUIET);
dev->class++;
}
}
/**
- * ata_pio_devchk - PATA device presence detection
- * @ap: ATA channel to examine
- * @device: Device to examine (starting at zero)
- *
- * This technique was originally described in
- * Hale Landis's ATADRVR (www.ata-atapi.com), and
- * later found its way into the ATA/ATAPI spec.
- *
- * Write a pattern to the ATA shadow registers,
- * and if a device is present, it will respond by
- * correctly storing and echoing back the
- * ATA shadow register contents.
- *
- * LOCKING:
- * caller.
- */
-
-static unsigned int ata_pio_devchk(struct ata_port *ap,
- unsigned int device)
-{
- struct ata_ioports *ioaddr = &ap->ioaddr;
- u8 nsect, lbal;
-
- ap->ops->dev_select(ap, device);
-
- outb(0x55, ioaddr->nsect_addr);
- outb(0xaa, ioaddr->lbal_addr);
-
- outb(0xaa, ioaddr->nsect_addr);
- outb(0x55, ioaddr->lbal_addr);
-
- outb(0x55, ioaddr->nsect_addr);
- outb(0xaa, ioaddr->lbal_addr);
-
- nsect = inb(ioaddr->nsect_addr);
- lbal = inb(ioaddr->lbal_addr);
-
- if ((nsect == 0x55) && (lbal == 0xaa))
- return 1; /* we found a device */
-
- return 0; /* nothing found */
-}
-
-/**
- * ata_mmio_devchk - PATA device presence detection
+ * ata_devchk - PATA device presence detection
* @ap: ATA channel to examine
* @device: Device to examine (starting at zero)
*
* caller.
*/
-static unsigned int ata_mmio_devchk(struct ata_port *ap,
- unsigned int device)
+static unsigned int ata_devchk(struct ata_port *ap, unsigned int device)
{
struct ata_ioports *ioaddr = &ap->ioaddr;
u8 nsect, lbal;
ap->ops->dev_select(ap, device);
- writeb(0x55, (void __iomem *) ioaddr->nsect_addr);
- writeb(0xaa, (void __iomem *) ioaddr->lbal_addr);
+ iowrite8(0x55, ioaddr->nsect_addr);
+ iowrite8(0xaa, ioaddr->lbal_addr);
- writeb(0xaa, (void __iomem *) ioaddr->nsect_addr);
- writeb(0x55, (void __iomem *) ioaddr->lbal_addr);
+ iowrite8(0xaa, ioaddr->nsect_addr);
+ iowrite8(0x55, ioaddr->lbal_addr);
- writeb(0x55, (void __iomem *) ioaddr->nsect_addr);
- writeb(0xaa, (void __iomem *) ioaddr->lbal_addr);
+ iowrite8(0x55, ioaddr->nsect_addr);
+ iowrite8(0xaa, ioaddr->lbal_addr);
- nsect = readb((void __iomem *) ioaddr->nsect_addr);
- lbal = readb((void __iomem *) ioaddr->lbal_addr);
+ nsect = ioread8(ioaddr->nsect_addr);
+ lbal = ioread8(ioaddr->lbal_addr);
if ((nsect == 0x55) && (lbal == 0xaa))
return 1; /* we found a device */
}
/**
- * ata_devchk - PATA device presence detection
- * @ap: ATA channel to examine
- * @device: Device to examine (starting at zero)
- *
- * Dispatch ATA device presence detection, depending
- * on whether we are using PIO or MMIO to talk to the
- * ATA shadow registers.
- *
- * LOCKING:
- * caller.
- */
-
-static unsigned int ata_devchk(struct ata_port *ap,
- unsigned int device)
-{
- if (ap->flags & ATA_FLAG_MMIO)
- return ata_mmio_devchk(ap, device);
- return ata_pio_devchk(ap, device);
-}
-
-/**
* ata_dev_classify - determine device type based on ATA-spec signature
* @tf: ATA taskfile register set for device to be identified
*
* Device type - %ATA_DEV_ATA, %ATA_DEV_ATAPI or %ATA_DEV_NONE.
*/
-static unsigned int
+unsigned int
ata_dev_try_classify(struct ata_port *ap, unsigned int device, u8 *r_err)
{
struct ata_taskfile tf;
}
/**
+ * ata_id_to_dma_mode - Identify DMA mode from id block
+ * @dev: device to identify
+ * @unknown: mode to assume if we cannot tell
+ *
+ * Set up the timing values for the device based upon the identify
+ * reported values for the DMA mode. This function is used by drivers
+ * which rely upon firmware configured modes, but wish to report the
+ * mode correctly when possible.
+ *
+ * In addition we emit similarly formatted messages to the default
+ * ata_dev_set_mode handler, in order to provide consistency of
+ * presentation.
+ */
+
+void ata_id_to_dma_mode(struct ata_device *dev, u8 unknown)
+{
+ unsigned int mask;
+ u8 mode;
+
+ /* Pack the DMA modes */
+ mask = ((dev->id[63] >> 8) << ATA_SHIFT_MWDMA) & ATA_MASK_MWDMA;
+ if (dev->id[53] & 0x04)
+ mask |= ((dev->id[88] >> 8) << ATA_SHIFT_UDMA) & ATA_MASK_UDMA;
+
+ /* Select the mode in use */
+ mode = ata_xfer_mask2mode(mask);
+
+ if (mode != 0) {
+ ata_dev_printk(dev, KERN_INFO, "configured for %s\n",
+ ata_mode_string(mask));
+ } else {
+ /* SWDMA perhaps ? */
+ mode = unknown;
+ ata_dev_printk(dev, KERN_INFO, "configured for DMA\n");
+ }
+
+ /* Configure the device reporting */
+ dev->xfer_mode = mode;
+ dev->xfer_shift = ata_xfer_mode2shift(mode);
+}
+
+/**
* ata_noop_dev_select - Select device 0/1 on ATA bus
* @ap: ATA channel to manipulate
* @device: ATA device (numbered from zero) to select
else
tmp = ATA_DEVICE_OBS | ATA_DEV1;
- if (ap->flags & ATA_FLAG_MMIO) {
- writeb(tmp, (void __iomem *) ap->ioaddr.device_addr);
- } else {
- outb(tmp, ap->ioaddr.device_addr);
- }
+ iowrite8(tmp, ap->ioaddr.device_addr);
ata_pause(ap); /* needed; also flushes, for mmio */
}
unsigned int wait, unsigned int can_sleep)
{
if (ata_msg_probe(ap))
- ata_port_printk(ap, KERN_INFO, "ata_dev_select: ENTER, ata%u: "
- "device %u, wait %u\n", ap->id, device, wait);
+ ata_port_printk(ap, KERN_INFO, "ata_dev_select: ENTER, "
+ "device %u, wait %u\n", device, wait);
if (wait)
ata_wait_idle(ap);
* the PIO timing number for the maximum. Turn it into
* a mask.
*/
- u8 mode = id[ATA_ID_OLD_PIO_MODES] & 0xFF;
+ u8 mode = (id[ATA_ID_OLD_PIO_MODES] >> 8) & 0xFF;
if (mode < 5) /* Valid PIO range */
pio_mask = (2 << mode) - 1;
else
* ata_port_queue_task - Queue port_task
* @ap: The ata_port to queue port_task for
* @fn: workqueue function to be scheduled
- * @data: data value to pass to workqueue function
+ * @data: data for @fn to use
* @delay: delay time for workqueue function
*
* Schedule @fn(@data) for execution after @delay jiffies using
* LOCKING:
* Inherited from caller.
*/
-void ata_port_queue_task(struct ata_port *ap, void (*fn)(void *), void *data,
+void ata_port_queue_task(struct ata_port *ap, work_func_t fn, void *data,
unsigned long delay)
{
int rc;
if (ap->pflags & ATA_PFLAG_FLUSH_PORT_TASK)
return;
- PREPARE_WORK(&ap->port_task, fn, data);
+ PREPARE_DELAYED_WORK(&ap->port_task, fn);
+ ap->port_task_data = data;
- if (!delay)
- rc = queue_work(ata_wq, &ap->port_task);
- else
- rc = queue_delayed_work(ata_wq, &ap->port_task, delay);
+ rc = queue_delayed_work(ata_wq, &ap->port_task, delay);
/* rc == 0 means that another user is using port task */
WARN_ON(rc == 0);
ata_port_printk(ap, KERN_DEBUG, "%s: EXIT\n", __FUNCTION__);
}
-void ata_qc_complete_internal(struct ata_queued_cmd *qc)
+static void ata_qc_complete_internal(struct ata_queued_cmd *qc)
{
struct completion *waiting = qc->private_data;
}
/**
- * ata_exec_internal - execute libata internal command
+ * ata_exec_internal_sg - execute libata internal command
* @dev: Device to which the command is sent
* @tf: Taskfile registers for the command and the result
* @cdb: CDB for packet command
* @dma_dir: Data tranfer direction of the command
- * @buf: Data buffer of the command
- * @buflen: Length of data buffer
+ * @sg: sg list for the data buffer of the command
+ * @n_elem: Number of sg entries
*
* Executes libata internal command with timeout. @tf contains
* command on entry and result on return. Timeout and error
* RETURNS:
* Zero on success, AC_ERR_* mask on failure
*/
-unsigned ata_exec_internal(struct ata_device *dev,
- struct ata_taskfile *tf, const u8 *cdb,
- int dma_dir, void *buf, unsigned int buflen)
+unsigned ata_exec_internal_sg(struct ata_device *dev,
+ struct ata_taskfile *tf, const u8 *cdb,
+ int dma_dir, struct scatterlist *sg,
+ unsigned int n_elem)
{
struct ata_port *ap = dev->ap;
u8 command = tf->command;
qc->flags |= ATA_QCFLAG_RESULT_TF;
qc->dma_dir = dma_dir;
if (dma_dir != DMA_NONE) {
- ata_sg_init_one(qc, buf, buflen);
- qc->nsect = buflen / ATA_SECT_SIZE;
+ unsigned int i, buflen = 0;
+
+ for (i = 0; i < n_elem; i++)
+ buflen += sg[i].length;
+
+ ata_sg_init(qc, sg, n_elem);
+ qc->nbytes = buflen;
}
qc->private_data = &wait;
if (ap->ops->post_internal_cmd)
ap->ops->post_internal_cmd(qc);
- if (qc->flags & ATA_QCFLAG_FAILED && !qc->err_mask) {
- if (ata_msg_warn(ap))
- ata_dev_printk(dev, KERN_WARNING,
- "zero err_mask for failed "
- "internal command, assuming AC_ERR_OTHER\n");
- qc->err_mask |= AC_ERR_OTHER;
+ /* perform minimal error analysis */
+ if (qc->flags & ATA_QCFLAG_FAILED) {
+ if (qc->result_tf.command & (ATA_ERR | ATA_DF))
+ qc->err_mask |= AC_ERR_DEV;
+
+ if (!qc->err_mask)
+ qc->err_mask |= AC_ERR_OTHER;
+
+ if (qc->err_mask & ~AC_ERR_OTHER)
+ qc->err_mask &= ~AC_ERR_OTHER;
}
/* finish up */
}
/**
+ * ata_exec_internal - execute libata internal command
+ * @dev: Device to which the command is sent
+ * @tf: Taskfile registers for the command and the result
+ * @cdb: CDB for packet command
+ * @dma_dir: Data tranfer direction of the command
+ * @buf: Data buffer of the command
+ * @buflen: Length of data buffer
+ *
+ * Wrapper around ata_exec_internal_sg() which takes simple
+ * buffer instead of sg list.
+ *
+ * LOCKING:
+ * None. Should be called with kernel context, might sleep.
+ *
+ * RETURNS:
+ * Zero on success, AC_ERR_* mask on failure
+ */
+unsigned ata_exec_internal(struct ata_device *dev,
+ struct ata_taskfile *tf, const u8 *cdb,
+ int dma_dir, void *buf, unsigned int buflen)
+{
+ struct scatterlist *psg = NULL, sg;
+ unsigned int n_elem = 0;
+
+ if (dma_dir != DMA_NONE) {
+ WARN_ON(!buf);
+ sg_init_one(&sg, buf, buflen);
+ psg = &sg;
+ n_elem++;
+ }
+
+ return ata_exec_internal_sg(dev, tf, cdb, dma_dir, psg, n_elem);
+}
+
+/**
* ata_do_simple_cmd - execute simple internal command
* @dev: Device to which the command is sent
* @cmd: Opcode to execute
* Check if the current speed of the device requires IORDY. Used
* by various controllers for chip configuration.
*/
-
+
unsigned int ata_pio_need_iordy(const struct ata_device *adev)
{
- int pio;
- int speed = adev->pio_mode - XFER_PIO_0;
-
- if (speed < 2)
+ /* Controller doesn't support IORDY. Probably a pointless check
+ as the caller should know this */
+ if (adev->ap->flags & ATA_FLAG_NO_IORDY)
return 0;
- if (speed > 2)
+ /* PIO3 and higher it is mandatory */
+ if (adev->pio_mode > XFER_PIO_2)
+ return 1;
+ /* We turn it on when possible */
+ if (ata_id_has_iordy(adev->id))
return 1;
+ return 0;
+}
+/**
+ * ata_pio_mask_no_iordy - Return the non IORDY mask
+ * @adev: ATA device
+ *
+ * Compute the highest mode possible if we are not using iordy. Return
+ * -1 if no iordy mode is available.
+ */
+
+static u32 ata_pio_mask_no_iordy(const struct ata_device *adev)
+{
/* If we have no drive specific rule, then PIO 2 is non IORDY */
-
if (adev->id[ATA_ID_FIELD_VALID] & 2) { /* EIDE */
- pio = adev->id[ATA_ID_EIDE_PIO];
+ u16 pio = adev->id[ATA_ID_EIDE_PIO];
/* Is the speed faster than the drive allows non IORDY ? */
if (pio) {
/* This is cycle times not frequency - watch the logic! */
if (pio > 240) /* PIO2 is 240nS per cycle */
- return 1;
- return 0;
+ return 3 << ATA_SHIFT_PIO;
+ return 7 << ATA_SHIFT_PIO;
}
}
- return 0;
+ return 3 << ATA_SHIFT_PIO;
}
/**
int rc;
if (ata_msg_ctl(ap))
- ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER, host %u, dev %u\n",
- __FUNCTION__, ap->id, dev->devno);
+ ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER\n", __FUNCTION__);
ata_dev_select(ap, dev->devno, 1, 1); /* select device 0/1 */
tf.protocol = ATA_PROT_PIO;
- /* presence detection using polling IDENTIFY? */
- if (flags & ATA_READID_DETECT)
- tf.flags |= ATA_TFLAG_POLLING;
+ /* Some devices choke if TF registers contain garbage. Make
+ * sure those are properly initialized.
+ */
+ tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
+
+ /* Device presence detection is unreliable on some
+ * controllers. Always poll IDENTIFY if available.
+ */
+ tf.flags |= ATA_TFLAG_POLLING;
err_mask = ata_exec_internal(dev, &tf, NULL, DMA_FROM_DEVICE,
id, sizeof(id[0]) * ATA_ID_WORDS);
if (err_mask) {
- if ((flags & ATA_READID_DETECT) &&
- (err_mask & AC_ERR_NODEV_HINT)) {
+ if (err_mask & AC_ERR_NODEV_HINT) {
DPRINTK("ata%u.%d: NODEV after polling detection\n",
- ap->id, dev->devno);
+ ap->print_id, dev->devno);
return -ENOENT;
}
snprintf(desc, desc_sz, "NCQ (depth %d/%d)", hdepth, ddepth);
}
-static void ata_set_port_max_cmd_len(struct ata_port *ap)
-{
- int i;
-
- if (ap->scsi_host) {
- unsigned int len = 0;
-
- for (i = 0; i < ATA_MAX_DEVICES; i++)
- len = max(len, ap->device[i].cdb_len);
-
- ap->scsi_host->max_cmd_len = len;
- }
-}
-
/**
* ata_dev_configure - Configure the specified ATA/ATAPI device
* @dev: Target device to configure
const u16 *id = dev->id;
unsigned int xfer_mask;
char revbuf[7]; /* XYZ-99\0 */
+ char fwrevbuf[ATA_ID_FW_REV_LEN+1];
+ char modelbuf[ATA_ID_PROD_LEN+1];
int rc;
if (!ata_dev_enabled(dev) && ata_msg_info(ap)) {
- ata_dev_printk(dev, KERN_INFO,
- "%s: ENTER/EXIT (host %u, dev %u) -- nodev\n",
- __FUNCTION__, ap->id, dev->devno);
+ ata_dev_printk(dev, KERN_INFO, "%s: ENTER/EXIT -- nodev\n",
+ __FUNCTION__);
return 0;
}
if (ata_msg_probe(ap))
- ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER, host %u, dev %u\n",
- __FUNCTION__, ap->id, dev->devno);
+ ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER\n", __FUNCTION__);
+
+ /* set _SDD */
+ rc = ata_acpi_push_id(ap, dev->devno);
+ if (rc) {
+ ata_dev_printk(dev, KERN_WARNING, "failed to set _SDD(%d)\n",
+ rc);
+ }
+
+ /* retrieve and execute the ATA task file of _GTF */
+ ata_acpi_exec_tfs(ap);
/* print device capabilities */
if (ata_msg_probe(ap))
if (dev->class == ATA_DEV_ATA) {
if (ata_id_is_cfa(id)) {
if (id[162] & 1) /* CPRM may make this media unusable */
- ata_dev_printk(dev, KERN_WARNING, "ata%u: device %u supports DRM functions and may not be fully accessable.\n",
- ap->id, dev->devno);
+ ata_dev_printk(dev, KERN_WARNING,
+ "supports DRM functions and may "
+ "not be fully accessable.\n");
snprintf(revbuf, 7, "CFA");
}
else
dev->n_sectors = ata_id_n_sectors(id);
+ /* SCSI only uses 4-char revisions, dump full 8 chars from ATA */
+ ata_id_c_string(dev->id, fwrevbuf, ATA_ID_FW_REV,
+ sizeof(fwrevbuf));
+
+ ata_id_c_string(dev->id, modelbuf, ATA_ID_PROD,
+ sizeof(modelbuf));
+
+ if (dev->id[59] & 0x100)
+ dev->multi_count = dev->id[59] & 0xff;
+
if (ata_id_has_lba(id)) {
const char *lba_desc;
char ncq_desc[20];
ata_dev_config_ncq(dev, ncq_desc, sizeof(ncq_desc));
/* print device info to dmesg */
- if (ata_msg_drv(ap) && print_info)
- ata_dev_printk(dev, KERN_INFO, "%s, "
- "max %s, %Lu sectors: %s %s\n",
- revbuf,
- ata_mode_string(xfer_mask),
+ if (ata_msg_drv(ap) && print_info) {
+ ata_dev_printk(dev, KERN_INFO,
+ "%s: %s, %s, max %s\n",
+ revbuf, modelbuf, fwrevbuf,
+ ata_mode_string(xfer_mask));
+ ata_dev_printk(dev, KERN_INFO,
+ "%Lu sectors, multi %u: %s %s\n",
(unsigned long long)dev->n_sectors,
- lba_desc, ncq_desc);
+ dev->multi_count, lba_desc, ncq_desc);
+ }
} else {
/* CHS */
}
/* print device info to dmesg */
- if (ata_msg_drv(ap) && print_info)
- ata_dev_printk(dev, KERN_INFO, "%s, "
- "max %s, %Lu sectors: CHS %u/%u/%u\n",
- revbuf,
- ata_mode_string(xfer_mask),
- (unsigned long long)dev->n_sectors,
- dev->cylinders, dev->heads,
- dev->sectors);
- }
-
- if (dev->id[59] & 0x100) {
- dev->multi_count = dev->id[59] & 0xff;
- if (ata_msg_drv(ap) && print_info)
+ if (ata_msg_drv(ap) && print_info) {
ata_dev_printk(dev, KERN_INFO,
- "ata%u: dev %u multi count %u\n",
- ap->id, dev->devno, dev->multi_count);
+ "%s: %s, %s, max %s\n",
+ revbuf, modelbuf, fwrevbuf,
+ ata_mode_string(xfer_mask));
+ ata_dev_printk(dev, KERN_INFO,
+ "%Lu sectors, multi %u, CHS %u/%u/%u\n",
+ (unsigned long long)dev->n_sectors,
+ dev->multi_count, dev->cylinders,
+ dev->heads, dev->sectors);
+ }
}
dev->cdb_len = 16;
}
}
- ata_set_port_max_cmd_len(ap);
-
/* limit bridge transfers to udma5, 200 sectors */
if (ata_dev_knobble(dev)) {
if (ata_msg_drv(ap) && print_info)
dev->max_sectors = ATA_MAX_SECTORS;
}
+ if (ata_device_blacklisted(dev) & ATA_HORKAGE_MAX_SEC_128)
+ dev->max_sectors = min(ATA_MAX_SECTORS_128, dev->max_sectors);
+
+ /* limit ATAPI DMA to R/W commands only */
+ if (ata_device_blacklisted(dev) & ATA_HORKAGE_DMA_RW_ONLY)
+ dev->horkage |= ATA_HORKAGE_DMA_RW_ONLY;
+
if (ap->ops->dev_config)
- ap->ops->dev_config(ap, dev);
+ ap->ops->dev_config(dev);
if (ata_msg_probe(ap))
ata_dev_printk(dev, KERN_DEBUG, "%s: EXIT, drv_stat = 0x%x\n",
}
/**
+ * ata_cable_40wire - return 40 wire cable type
+ * @ap: port
+ *
+ * Helper method for drivers which want to hardwire 40 wire cable
+ * detection.
+ */
+
+int ata_cable_40wire(struct ata_port *ap)
+{
+ return ATA_CBL_PATA40;
+}
+
+/**
+ * ata_cable_80wire - return 80 wire cable type
+ * @ap: port
+ *
+ * Helper method for drivers which want to hardwire 80 wire cable
+ * detection.
+ */
+
+int ata_cable_80wire(struct ata_port *ap)
+{
+ return ATA_CBL_PATA80;
+}
+
+/**
+ * ata_cable_unknown - return unknown PATA cable.
+ * @ap: port
+ *
+ * Helper method for drivers which have no PATA cable detection.
+ */
+
+int ata_cable_unknown(struct ata_port *ap)
+{
+ return ATA_CBL_PATA_UNK;
+}
+
+/**
+ * ata_cable_sata - return SATA cable type
+ * @ap: port
+ *
+ * Helper method for drivers which have SATA cables
+ */
+
+int ata_cable_sata(struct ata_port *ap)
+{
+ return ATA_CBL_SATA;
+}
+
+/**
* ata_bus_probe - Reset and probe ATA bus
* @ap: Bus to probe
*
{
unsigned int classes[ATA_MAX_DEVICES];
int tries[ATA_MAX_DEVICES];
- int i, rc, down_xfermask;
+ int i, rc;
struct ata_device *dev;
ata_port_probe(ap);
tries[i] = ATA_PROBE_MAX_TRIES;
retry:
- down_xfermask = 0;
-
/* reset and determine device classes */
ap->ops->phy_reset(ap);
for (i = 0; i < ATA_MAX_DEVICES; i++)
ap->device[i].pio_mode = XFER_PIO_0;
- /* read IDENTIFY page and configure devices */
- for (i = 0; i < ATA_MAX_DEVICES; i++) {
+ /* read IDENTIFY page and configure devices. We have to do the identify
+ specific sequence bass-ackwards so that PDIAG- is released by
+ the slave device */
+
+ for (i = ATA_MAX_DEVICES - 1; i >= 0; i--) {
dev = &ap->device[i];
if (tries[i])
dev->id);
if (rc)
goto fail;
+ }
+
+ /* Now ask for the cable type as PDIAG- should have been released */
+ if (ap->ops->cable_detect)
+ ap->cbl = ap->ops->cable_detect(ap);
+
+ /* After the identify sequence we can now set up the devices. We do
+ this in the normal order so that the user doesn't get confused */
+
+ for(i = 0; i < ATA_MAX_DEVICES; i++) {
+ dev = &ap->device[i];
+ if (!ata_dev_enabled(dev))
+ continue;
ap->eh_context.i.flags |= ATA_EHI_PRINTINFO;
rc = ata_dev_configure(dev);
/* configure transfer mode */
rc = ata_set_mode(ap, &dev);
- if (rc) {
- down_xfermask = 1;
+ if (rc)
goto fail;
- }
for (i = 0; i < ATA_MAX_DEVICES; i++)
if (ata_dev_enabled(&ap->device[i]))
return -ENODEV;
fail:
+ tries[dev->devno]--;
+
switch (rc) {
case -EINVAL:
- case -ENODEV:
+ /* eeek, something went very wrong, give up */
tries[dev->devno] = 0;
break;
+
+ case -ENODEV:
+ /* give it just one more chance */
+ tries[dev->devno] = min(tries[dev->devno], 1);
case -EIO:
- sata_down_spd_limit(ap);
- /* fall through */
- default:
- tries[dev->devno]--;
- if (down_xfermask &&
- ata_down_xfermask_limit(dev, tries[dev->devno] == 1))
- tries[dev->devno] = 0;
+ if (tries[dev->devno] == 1) {
+ /* This is the last chance, better to slow
+ * down than lose it.
+ */
+ sata_down_spd_limit(ap);
+ ata_down_xfermask_limit(dev, ATA_DNXFER_PIO);
+ }
}
- if (!tries[dev->devno]) {
- ata_down_xfermask_limit(dev, 1);
+ if (!tries[dev->devno])
ata_dev_disable(dev);
- }
goto retry;
}
* LOCKING:
* None.
*/
-static void sata_print_link_status(struct ata_port *ap)
+void sata_print_link_status(struct ata_port *ap)
{
u32 sstatus, scontrol, tmp;
* DMA cycle timing is slower/equal than the fastest PIO timing.
*/
- if (speed > XFER_PIO_4) {
+ if (speed > XFER_PIO_6) {
ata_timing_compute(adev, adev->pio_mode, &p, T, UT);
ata_timing_merge(&p, t, t, ATA_TIMING_ALL);
}
/**
* ata_down_xfermask_limit - adjust dev xfer masks downward
* @dev: Device to adjust xfer masks
- * @force_pio0: Force PIO0
+ * @sel: ATA_DNXFER_* selector
*
* Adjust xfer masks of @dev downward. Note that this function
* does not apply the change. Invoking ata_set_mode() afterwards
* RETURNS:
* 0 on success, negative errno on failure
*/
-int ata_down_xfermask_limit(struct ata_device *dev, int force_pio0)
+int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel)
{
- unsigned long xfer_mask;
- int highbit;
+ char buf[32];
+ unsigned int orig_mask, xfer_mask;
+ unsigned int pio_mask, mwdma_mask, udma_mask;
+ int quiet, highbit;
+
+ quiet = !!(sel & ATA_DNXFER_QUIET);
+ sel &= ~ATA_DNXFER_QUIET;
+
+ xfer_mask = orig_mask = ata_pack_xfermask(dev->pio_mask,
+ dev->mwdma_mask,
+ dev->udma_mask);
+ ata_unpack_xfermask(xfer_mask, &pio_mask, &mwdma_mask, &udma_mask);
+
+ switch (sel) {
+ case ATA_DNXFER_PIO:
+ highbit = fls(pio_mask) - 1;
+ pio_mask &= ~(1 << highbit);
+ break;
- xfer_mask = ata_pack_xfermask(dev->pio_mask, dev->mwdma_mask,
- dev->udma_mask);
+ case ATA_DNXFER_DMA:
+ if (udma_mask) {
+ highbit = fls(udma_mask) - 1;
+ udma_mask &= ~(1 << highbit);
+ if (!udma_mask)
+ return -ENOENT;
+ } else if (mwdma_mask) {
+ highbit = fls(mwdma_mask) - 1;
+ mwdma_mask &= ~(1 << highbit);
+ if (!mwdma_mask)
+ return -ENOENT;
+ }
+ break;
- if (!xfer_mask)
- goto fail;
- /* don't gear down to MWDMA from UDMA, go directly to PIO */
- if (xfer_mask & ATA_MASK_UDMA)
- xfer_mask &= ~ATA_MASK_MWDMA;
+ case ATA_DNXFER_40C:
+ udma_mask &= ATA_UDMA_MASK_40C;
+ break;
- highbit = fls(xfer_mask) - 1;
- xfer_mask &= ~(1 << highbit);
- if (force_pio0)
- xfer_mask &= 1 << ATA_SHIFT_PIO;
- if (!xfer_mask)
- goto fail;
+ case ATA_DNXFER_FORCE_PIO0:
+ pio_mask &= 1;
+ case ATA_DNXFER_FORCE_PIO:
+ mwdma_mask = 0;
+ udma_mask = 0;
+ break;
+
+ default:
+ BUG();
+ }
+
+ xfer_mask &= ata_pack_xfermask(pio_mask, mwdma_mask, udma_mask);
+
+ if (!(xfer_mask & ATA_MASK_PIO) || xfer_mask == orig_mask)
+ return -ENOENT;
+
+ if (!quiet) {
+ if (xfer_mask & (ATA_MASK_MWDMA | ATA_MASK_UDMA))
+ snprintf(buf, sizeof(buf), "%s:%s",
+ ata_mode_string(xfer_mask),
+ ata_mode_string(xfer_mask & ATA_MASK_PIO));
+ else
+ snprintf(buf, sizeof(buf), "%s",
+ ata_mode_string(xfer_mask));
+
+ ata_dev_printk(dev, KERN_WARNING,
+ "limiting speed to %s\n", buf);
+ }
ata_unpack_xfermask(xfer_mask, &dev->pio_mask, &dev->mwdma_mask,
&dev->udma_mask);
- ata_dev_printk(dev, KERN_WARNING, "limiting speed to %s\n",
- ata_mode_string(xfer_mask));
-
return 0;
-
- fail:
- return -EINVAL;
}
static int ata_dev_set_mode(struct ata_device *dev)
dev->flags |= ATA_DFLAG_PIO;
err_mask = ata_dev_set_xfermode(dev);
+ /* Old CFA may refuse this command, which is just fine */
+ if (dev->xfer_shift == ATA_SHIFT_PIO && ata_id_is_cfa(dev->id))
+ err_mask &= ~AC_ERR_DEV;
+
if (err_mask) {
ata_dev_printk(dev, KERN_ERR, "failed to set xfermode "
"(err_mask=0x%x)\n", err_mask);
}
/**
- * ata_set_mode - Program timings and issue SET FEATURES - XFER
+ * ata_do_set_mode - Program timings and issue SET FEATURES - XFER
* @ap: port on which timings will be programmed
* @r_failed_dev: out paramter for failed device
*
- * Set ATA device disk transfer mode (PIO3, UDMA6, etc.). If
- * ata_set_mode() fails, pointer to the failing device is
+ * Standard implementation of the function used to tune and set
+ * ATA device disk transfer mode (PIO3, UDMA6, etc.). If
+ * ata_dev_set_mode() fails, pointer to the failing device is
* returned in @r_failed_dev.
*
* LOCKING:
* RETURNS:
* 0 on success, negative errno otherwise
*/
-int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
+
+int ata_do_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
{
struct ata_device *dev;
int i, rc = 0, used_dma = 0, found = 0;
- /* has private set_mode? */
- if (ap->ops->set_mode) {
- /* FIXME: make ->set_mode handle no device case and
- * return error code and failing device on failure.
- */
- for (i = 0; i < ATA_MAX_DEVICES; i++) {
- if (ata_dev_ready(&ap->device[i])) {
- ap->ops->set_mode(ap);
- break;
- }
- }
- return 0;
- }
/* step 1: calculate xfer_mask */
for (i = 0; i < ATA_MAX_DEVICES; i++) {
for (i = 0; i < ATA_MAX_DEVICES; i++) {
dev = &ap->device[i];
- /* don't udpate suspended devices' xfer mode */
+ /* don't update suspended devices' xfer mode */
if (!ata_dev_ready(dev))
continue;
* host channels are not permitted to do so.
*/
if (used_dma && (ap->host->flags & ATA_HOST_SIMPLEX))
- ap->host->simplex_claimed = 1;
+ ap->host->simplex_claimed = ap;
/* step5: chip specific finalisation */
if (ap->ops->post_set_mode)
ap->ops->post_set_mode(ap);
-
out:
if (rc)
*r_failed_dev = dev;
}
/**
+ * ata_set_mode - Program timings and issue SET FEATURES - XFER
+ * @ap: port on which timings will be programmed
+ * @r_failed_dev: out paramter for failed device
+ *
+ * Set ATA device disk transfer mode (PIO3, UDMA6, etc.). If
+ * ata_set_mode() fails, pointer to the failing device is
+ * returned in @r_failed_dev.
+ *
+ * LOCKING:
+ * PCI/etc. bus probe sem.
+ *
+ * RETURNS:
+ * 0 on success, negative errno otherwise
+ */
+int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
+{
+ /* has private set_mode? */
+ if (ap->ops->set_mode)
+ return ap->ops->set_mode(ap, r_failed_dev);
+ return ata_do_set_mode(ap, r_failed_dev);
+}
+
+/**
* ata_tf_to_host - issue ATA taskfile to host controller
* @ap: port to which command is being issued
* @tf: ATA taskfile register set
u8 nsect, lbal;
ap->ops->dev_select(ap, 1);
- if (ap->flags & ATA_FLAG_MMIO) {
- nsect = readb((void __iomem *) ioaddr->nsect_addr);
- lbal = readb((void __iomem *) ioaddr->lbal_addr);
- } else {
- nsect = inb(ioaddr->nsect_addr);
- lbal = inb(ioaddr->lbal_addr);
- }
+ nsect = ioread8(ioaddr->nsect_addr);
+ lbal = ioread8(ioaddr->lbal_addr);
if ((nsect == 1) && (lbal == 1))
break;
if (time_after(jiffies, timeout)) {
{
struct ata_ioports *ioaddr = &ap->ioaddr;
- DPRINTK("ata%u: bus reset via SRST\n", ap->id);
+ DPRINTK("ata%u: bus reset via SRST\n", ap->print_id);
/* software reset. causes dev0 to be selected */
- if (ap->flags & ATA_FLAG_MMIO) {
- writeb(ap->ctl, (void __iomem *) ioaddr->ctl_addr);
- udelay(20); /* FIXME: flush */
- writeb(ap->ctl | ATA_SRST, (void __iomem *) ioaddr->ctl_addr);
- udelay(20); /* FIXME: flush */
- writeb(ap->ctl, (void __iomem *) ioaddr->ctl_addr);
- } else {
- outb(ap->ctl, ioaddr->ctl_addr);
- udelay(10);
- outb(ap->ctl | ATA_SRST, ioaddr->ctl_addr);
- udelay(10);
- outb(ap->ctl, ioaddr->ctl_addr);
- }
+ iowrite8(ap->ctl, ioaddr->ctl_addr);
+ udelay(20); /* FIXME: flush */
+ iowrite8(ap->ctl | ATA_SRST, ioaddr->ctl_addr);
+ udelay(20); /* FIXME: flush */
+ iowrite8(ap->ctl, ioaddr->ctl_addr);
/* spec mandates ">= 2ms" before checking status.
* We wait 150ms, because that was the magic delay used for
u8 err;
unsigned int dev0, dev1 = 0, devmask = 0;
- DPRINTK("ENTER, host %u, port %u\n", ap->id, ap->port_no);
+ DPRINTK("ENTER, host %u, port %u\n", ap->print_id, ap->port_no);
/* determine if device 0/1 are present */
if (ap->flags & ATA_FLAG_SATA_RESET)
ap->device[1].class = ata_dev_try_classify(ap, 1, &err);
/* re-enable interrupts */
- if (ap->ioaddr.ctl_addr) /* FIXME: hack. create a hook instead */
- ata_irq_on(ap);
+ ap->ops->irq_on(ap);
/* is double-select really necessary? */
if (ap->device[1].class != ATA_DEV_NONE)
if (ap->flags & (ATA_FLAG_SATA_RESET | ATA_FLAG_SRST)) {
/* set up device control for ATA_FLAG_SATA_RESET */
- if (ap->flags & ATA_FLAG_MMIO)
- writeb(ap->ctl, (void __iomem *) ioaddr->ctl_addr);
- else
- outb(ap->ctl, ioaddr->ctl_addr);
+ iowrite8(ap->ctl, ioaddr->ctl_addr);
}
DPRINTK("EXIT\n");
return 0;
}
+ /* wait a while before checking status, see SRST for more info */
+ msleep(150);
+
if (ata_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT)) {
ata_port_printk(ap, KERN_ERR,
"COMRESET failed (device not ready)\n");
sata_scr_write(ap, SCR_ERROR, serror);
/* re-enable interrupts */
- if (!ap->ops->error_handler) {
- /* FIXME: hack. create a hook instead */
- if (ap->ioaddr.ctl_addr)
- ata_irq_on(ap);
- }
+ if (!ap->ops->error_handler)
+ ap->ops->irq_on(ap);
/* is double-select really necessary? */
if (classes[0] != ATA_DEV_NONE)
}
/* set up device control */
- if (ap->ioaddr.ctl_addr) {
- if (ap->flags & ATA_FLAG_MMIO)
- writeb(ap->ctl, (void __iomem *) ap->ioaddr.ctl_addr);
- else
- outb(ap->ctl, ap->ioaddr.ctl_addr);
- }
+ if (ap->ioaddr.ctl_addr)
+ iowrite8(ap->ctl, ap->ioaddr.ctl_addr);
DPRINTK("EXIT\n");
}
const u16 *new_id)
{
const u16 *old_id = dev->id;
- unsigned char model[2][41], serial[2][21];
+ unsigned char model[2][ATA_ID_PROD_LEN + 1];
+ unsigned char serial[2][ATA_ID_SERNO_LEN + 1];
u64 new_n_sectors;
if (dev->class != new_class) {
return 0;
}
- ata_id_c_string(old_id, model[0], ATA_ID_PROD_OFS, sizeof(model[0]));
- ata_id_c_string(new_id, model[1], ATA_ID_PROD_OFS, sizeof(model[1]));
- ata_id_c_string(old_id, serial[0], ATA_ID_SERNO_OFS, sizeof(serial[0]));
- ata_id_c_string(new_id, serial[1], ATA_ID_SERNO_OFS, sizeof(serial[1]));
+ ata_id_c_string(old_id, model[0], ATA_ID_PROD, sizeof(model[0]));
+ ata_id_c_string(new_id, model[1], ATA_ID_PROD, sizeof(model[1]));
+ ata_id_c_string(old_id, serial[0], ATA_ID_SERNO, sizeof(serial[0]));
+ ata_id_c_string(new_id, serial[1], ATA_ID_SERNO, sizeof(serial[1]));
new_n_sectors = ata_id_n_sectors(new_id);
if (strcmp(model[0], model[1])) {
{ "WPI CDD-820", NULL, ATA_HORKAGE_NODMA },
{ "SAMSUNG CD-ROM SC-148C", NULL, ATA_HORKAGE_NODMA },
{ "SAMSUNG CD-ROM SC", NULL, ATA_HORKAGE_NODMA },
- { "SanDisk SDP3B-64", NULL, ATA_HORKAGE_NODMA },
{ "ATAPI CD-ROM DRIVE 40X MAXIMUM",NULL,ATA_HORKAGE_NODMA },
{ "_NEC DV5800A", NULL, ATA_HORKAGE_NODMA },
{ "SAMSUNG CD-ROM SN-124","N001", ATA_HORKAGE_NODMA },
+ /* Weird ATAPI devices */
+ { "TORiSAN DVD-ROM DRD-N216", NULL, ATA_HORKAGE_MAX_SEC_128 |
+ ATA_HORKAGE_DMA_RW_ONLY },
+
/* Devices we expect to fail diagnostics */
/* Devices where NCQ should be avoided */
/* NCQ is slow */
{ "WDC WD740ADFD-00", NULL, ATA_HORKAGE_NONCQ },
+ /* http://thread.gmane.org/gmane.linux.ide/14907 */
+ { "FUJITSU MHT2060BH", NULL, ATA_HORKAGE_NONCQ },
+ /* NCQ is broken */
+ { "Maxtor 6L250S0", "BANC1G10", ATA_HORKAGE_NONCQ },
+ /* NCQ hard hangs device under heavier load, needs hard power cycle */
+ { "Maxtor 6B250S0", "BANC1B70", ATA_HORKAGE_NONCQ },
+ /* Blacklist entries taken from Silicon Image 3124/3132
+ Windows driver .inf file - also several Linux problem reports */
+ { "HTS541060G9SA00", "MB3OC60D", ATA_HORKAGE_NONCQ, },
+ { "HTS541080G9SA00", "MB4OC60D", ATA_HORKAGE_NONCQ, },
+ { "HTS541010G9SA00", "MBZOC60D", ATA_HORKAGE_NONCQ, },
/* Devices with NCQ limits */
{ }
};
-static int ata_strim(char *s, size_t len)
-{
- len = strnlen(s, len);
-
- /* ATAPI specifies that empty space is blank-filled; remove blanks */
- while ((len > 0) && (s[len - 1] == ' ')) {
- len--;
- s[len] = 0;
- }
- return len;
-}
-
unsigned long ata_device_blacklisted(const struct ata_device *dev)
{
- unsigned char model_num[40];
- unsigned char model_rev[16];
- unsigned int nlen, rlen;
+ unsigned char model_num[ATA_ID_PROD_LEN + 1];
+ unsigned char model_rev[ATA_ID_FW_REV_LEN + 1];
const struct ata_blacklist_entry *ad = ata_device_blacklist;
- ata_id_string(dev->id, model_num, ATA_ID_PROD_OFS,
- sizeof(model_num));
- ata_id_string(dev->id, model_rev, ATA_ID_FW_REV_OFS,
- sizeof(model_rev));
- nlen = ata_strim(model_num, sizeof(model_num));
- rlen = ata_strim(model_rev, sizeof(model_rev));
+ ata_id_c_string(dev->id, model_num, ATA_ID_PROD, sizeof(model_num));
+ ata_id_c_string(dev->id, model_rev, ATA_ID_FW_REV, sizeof(model_rev));
while (ad->model_num) {
- if (!strncmp(ad->model_num, model_num, nlen)) {
+ if (!strcmp(ad->model_num, model_num)) {
if (ad->model_rev == NULL)
return ad->horkage;
- if (!strncmp(ad->model_rev, model_rev, rlen))
+ if (!strcmp(ad->model_rev, model_rev))
return ad->horkage;
}
ad++;
xfer_mask = ata_pack_xfermask(ap->pio_mask,
ap->mwdma_mask, ap->udma_mask);
- /* Apply cable rule here. Don't apply it early because when
- * we handle hot plug the cable type can itself change.
- */
- if (ap->cbl == ATA_CBL_PATA40)
- xfer_mask &= ~(0xF8 << ATA_SHIFT_UDMA);
- /* Apply drive side cable rule. Unknown or 80 pin cables reported
- * host side are checked drive side as well. Cases where we know a
- * 40wire cable is used safely for 80 are not checked here.
- */
- if (ata_drive_40wire(dev->id) && (ap->cbl == ATA_CBL_PATA_UNK || ap->cbl == ATA_CBL_PATA80))
- xfer_mask &= ~(0xF8 << ATA_SHIFT_UDMA);
-
-
+ /* drive modes available */
xfer_mask &= ata_pack_xfermask(dev->pio_mask,
dev->mwdma_mask, dev->udma_mask);
xfer_mask &= ata_id_xfermask(dev->id);
"device is on DMA blacklist, disabling DMA\n");
}
- if ((host->flags & ATA_HOST_SIMPLEX) && host->simplex_claimed) {
+ if ((host->flags & ATA_HOST_SIMPLEX) &&
+ host->simplex_claimed && host->simplex_claimed != ap) {
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->flags & ATA_FLAG_NO_IORDY)
+ xfer_mask &= ata_pio_mask_no_iordy(dev);
+
if (ap->ops->mode_filter)
- xfer_mask = ap->ops->mode_filter(ap, dev, xfer_mask);
+ xfer_mask = ap->ops->mode_filter(dev, xfer_mask);
+
+ /* Apply cable rule here. Don't apply it early because when
+ * we handle hot plug the cable type can itself change.
+ * Check this last so that we know if the transfer rate was
+ * solely limited by the cable.
+ * Unknown or 80 wire cables reported host side are checked
+ * drive side as well. Cases where we know a 40wire cable
+ * is used safely for 80 are not checked here.
+ */
+ if (xfer_mask & (0xF8 << ATA_SHIFT_UDMA))
+ /* UDMA/44 or higher would be available */
+ if((ap->cbl == ATA_CBL_PATA40) ||
+ (ata_drive_40wire(dev->id) &&
+ (ap->cbl == ATA_CBL_PATA_UNK ||
+ ap->cbl == ATA_CBL_PATA80))) {
+ ata_dev_printk(dev, KERN_WARNING,
+ "limited to UDMA/33 due to 40-wire cable\n");
+ xfer_mask &= ~(0xF8 << ATA_SHIFT_UDMA);
+ }
ata_unpack_xfermask(xfer_mask, &dev->pio_mask,
&dev->mwdma_mask, &dev->udma_mask);
* LOCKING:
* spin_lock_irqsave(host lock)
*/
-
-static void ata_sg_clean(struct ata_queued_cmd *qc)
+void ata_sg_clean(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct scatterlist *sg = qc->__sg;
struct ata_port *ap = qc->ap;
int rc = 0; /* Assume ATAPI DMA is OK by default */
+ /* some drives can only do ATAPI DMA on read/write */
+ if (unlikely(qc->dev->horkage & ATA_HORKAGE_DMA_RW_ONLY)) {
+ struct scsi_cmnd *cmd = qc->scsicmd;
+ u8 *scsicmd = cmd->cmnd;
+
+ switch (scsicmd[0]) {
+ case READ_10:
+ case WRITE_10:
+ case READ_12:
+ case WRITE_12:
+ case READ_6:
+ case WRITE_6:
+ /* atapi dma maybe ok */
+ break;
+ default:
+ /* turn off atapi dma */
+ return 1;
+ }
+ }
+
if (ap->ops->check_atapi_dma)
rc = ap->ops->check_atapi_dma(qc);
struct scatterlist *lsg = &sg[qc->n_elem - 1];
int n_elem, pre_n_elem, dir, trim_sg = 0;
- VPRINTK("ENTER, ata%u\n", ap->id);
+ VPRINTK("ENTER, ata%u\n", ap->print_id);
WARN_ON(!(qc->flags & ATA_QCFLAG_SG));
/* we must lengthen transfers to end on a 32-bit boundary */
}
/**
- * ata_mmio_data_xfer - Transfer data by MMIO
- * @adev: device for this I/O
- * @buf: data buffer
- * @buflen: buffer length
- * @write_data: read/write
- *
- * Transfer data from/to the device data register by MMIO.
- *
- * LOCKING:
- * Inherited from caller.
- */
-
-void ata_mmio_data_xfer(struct ata_device *adev, unsigned char *buf,
- unsigned int buflen, int write_data)
-{
- struct ata_port *ap = adev->ap;
- unsigned int i;
- unsigned int words = buflen >> 1;
- u16 *buf16 = (u16 *) buf;
- void __iomem *mmio = (void __iomem *)ap->ioaddr.data_addr;
-
- /* Transfer multiple of 2 bytes */
- if (write_data) {
- for (i = 0; i < words; i++)
- writew(le16_to_cpu(buf16[i]), mmio);
- } else {
- for (i = 0; i < words; i++)
- buf16[i] = cpu_to_le16(readw(mmio));
- }
-
- /* Transfer trailing 1 byte, if any. */
- if (unlikely(buflen & 0x01)) {
- u16 align_buf[1] = { 0 };
- unsigned char *trailing_buf = buf + buflen - 1;
-
- if (write_data) {
- memcpy(align_buf, trailing_buf, 1);
- writew(le16_to_cpu(align_buf[0]), mmio);
- } else {
- align_buf[0] = cpu_to_le16(readw(mmio));
- memcpy(trailing_buf, align_buf, 1);
- }
- }
-}
-
-/**
- * ata_pio_data_xfer - Transfer data by PIO
+ * ata_data_xfer - Transfer data by PIO
* @adev: device to target
* @buf: data buffer
* @buflen: buffer length
* LOCKING:
* Inherited from caller.
*/
-
-void ata_pio_data_xfer(struct ata_device *adev, unsigned char *buf,
- unsigned int buflen, int write_data)
+void ata_data_xfer(struct ata_device *adev, unsigned char *buf,
+ unsigned int buflen, int write_data)
{
struct ata_port *ap = adev->ap;
unsigned int words = buflen >> 1;
/* Transfer multiple of 2 bytes */
if (write_data)
- outsw(ap->ioaddr.data_addr, buf, words);
+ iowrite16_rep(ap->ioaddr.data_addr, buf, words);
else
- insw(ap->ioaddr.data_addr, buf, words);
+ ioread16_rep(ap->ioaddr.data_addr, buf, words);
/* Transfer trailing 1 byte, if any. */
if (unlikely(buflen & 0x01)) {
if (write_data) {
memcpy(align_buf, trailing_buf, 1);
- outw(le16_to_cpu(align_buf[0]), ap->ioaddr.data_addr);
+ iowrite16(le16_to_cpu(align_buf[0]), ap->ioaddr.data_addr);
} else {
- align_buf[0] = cpu_to_le16(inw(ap->ioaddr.data_addr));
+ align_buf[0] = cpu_to_le16(ioread16(ap->ioaddr.data_addr));
memcpy(trailing_buf, align_buf, 1);
}
}
}
/**
- * ata_pio_data_xfer_noirq - Transfer data by PIO
+ * ata_data_xfer_noirq - Transfer data by PIO
* @adev: device to target
* @buf: data buffer
* @buflen: buffer length
* LOCKING:
* Inherited from caller.
*/
-
-void ata_pio_data_xfer_noirq(struct ata_device *adev, unsigned char *buf,
- unsigned int buflen, int write_data)
+void ata_data_xfer_noirq(struct ata_device *adev, unsigned char *buf,
+ unsigned int buflen, int write_data)
{
unsigned long flags;
local_irq_save(flags);
- ata_pio_data_xfer(adev, buf, buflen, write_data);
+ ata_data_xfer(adev, buf, buflen, write_data);
local_irq_restore(flags);
}
/**
- * ata_pio_sector - Transfer ATA_SECT_SIZE (512 bytes) of data.
+ * ata_pio_sector - Transfer a sector of data.
* @qc: Command on going
*
- * Transfer ATA_SECT_SIZE of data from/to the ATA device.
+ * Transfer qc->sect_size bytes of data from/to the ATA device.
*
* LOCKING:
* Inherited from caller.
unsigned int offset;
unsigned char *buf;
- if (qc->cursect == (qc->nsect - 1))
+ if (qc->curbytes == qc->nbytes - qc->sect_size)
ap->hsm_task_state = HSM_ST_LAST;
page = sg[qc->cursg].page;
- offset = sg[qc->cursg].offset + qc->cursg_ofs * ATA_SECT_SIZE;
+ offset = sg[qc->cursg].offset + qc->cursg_ofs;
/* get the current page and offset */
page = nth_page(page, (offset >> PAGE_SHIFT));
buf = kmap_atomic(page, KM_IRQ0);
/* do the actual data transfer */
- ap->ops->data_xfer(qc->dev, buf + offset, ATA_SECT_SIZE, do_write);
+ ap->ops->data_xfer(qc->dev, buf + offset, qc->sect_size, do_write);
kunmap_atomic(buf, KM_IRQ0);
local_irq_restore(flags);
} else {
buf = page_address(page);
- ap->ops->data_xfer(qc->dev, buf + offset, ATA_SECT_SIZE, do_write);
+ ap->ops->data_xfer(qc->dev, buf + offset, qc->sect_size, do_write);
}
- qc->cursect++;
- qc->cursg_ofs++;
+ qc->curbytes += qc->sect_size;
+ qc->cursg_ofs += qc->sect_size;
- if ((qc->cursg_ofs * ATA_SECT_SIZE) == (&sg[qc->cursg])->length) {
+ if (qc->cursg_ofs == (&sg[qc->cursg])->length) {
qc->cursg++;
qc->cursg_ofs = 0;
}
}
/**
- * ata_pio_sectors - Transfer one or many 512-byte sectors.
+ * ata_pio_sectors - Transfer one or many sectors.
* @qc: Command on going
*
- * Transfer one or many ATA_SECT_SIZE of data from/to the
+ * Transfer one or many sectors of data from/to the
* ATA device for the DRQ request.
*
* LOCKING:
WARN_ON(qc->dev->multi_count == 0);
- nsect = min(qc->nsect - qc->cursect, qc->dev->multi_count);
+ nsect = min((qc->nbytes - qc->curbytes) / qc->sect_size,
+ qc->dev->multi_count);
while (nsect--)
ata_pio_sector(qc);
} else
if (do_write != i_write)
goto err_out;
- VPRINTK("ata%u: xfering %d bytes\n", ap->id, bytes);
+ VPRINTK("ata%u: xfering %d bytes\n", ap->print_id, bytes);
__atapi_pio_bytes(qc, bytes);
qc = ata_qc_from_tag(ap, qc->tag);
if (qc) {
if (likely(!(qc->err_mask & AC_ERR_HSM))) {
- ata_irq_on(ap);
+ ap->ops->irq_on(ap);
ata_qc_complete(qc);
} else
ata_port_freeze(ap);
} else {
if (in_wq) {
spin_lock_irqsave(ap->lock, flags);
- ata_irq_on(ap);
+ ap->ops->irq_on(ap);
ata_qc_complete(qc);
spin_unlock_irqrestore(ap->lock, flags);
} else
fsm_start:
DPRINTK("ata%u: protocol %d task_state %d (dev_stat 0x%X)\n",
- ap->id, qc->tf.protocol, ap->hsm_task_state, status);
+ ap->print_id, qc->tf.protocol, ap->hsm_task_state, status);
switch (ap->hsm_task_state) {
case HSM_ST_FIRST:
* let the EH abort the command or reset the device.
*/
if (unlikely(status & (ATA_ERR | ATA_DF))) {
- printk(KERN_WARNING "ata%d: DRQ=1 with device error, dev_stat 0x%X\n",
- ap->id, status);
+ ata_port_printk(ap, KERN_WARNING, "DRQ=1 with device "
+ "error, dev_stat 0x%X\n", status);
qc->err_mask |= AC_ERR_HSM;
ap->hsm_task_state = HSM_ST_ERR;
goto fsm_start;
* let the EH abort the command or reset the device.
*/
if (unlikely(status & (ATA_ERR | ATA_DF))) {
- printk(KERN_WARNING "ata%d: DRQ=1 with device error, dev_stat 0x%X\n",
- ap->id, status);
+ ata_port_printk(ap, KERN_WARNING, "DRQ=1 with "
+ "device error, dev_stat 0x%X\n",
+ status);
qc->err_mask |= AC_ERR_HSM;
ap->hsm_task_state = HSM_ST_ERR;
goto fsm_start;
/* no more data to transfer */
DPRINTK("ata%u: dev %u command complete, drv_stat 0x%x\n",
- ap->id, qc->dev->devno, status);
+ ap->print_id, qc->dev->devno, status);
WARN_ON(qc->err_mask);
return poll_next;
}
-static void ata_pio_task(void *_data)
+static void ata_pio_task(struct work_struct *work)
{
- struct ata_queued_cmd *qc = _data;
- struct ata_port *ap = qc->ap;
+ struct ata_port *ap =
+ container_of(work, struct ata_port, port_task.work);
+ struct ata_queued_cmd *qc = ap->port_task_data;
u8 status;
int poll_next;
{
struct ata_port *ap = qc->ap;
- ap->ops->tf_read(ap, &qc->result_tf);
qc->result_tf.flags = qc->tf.flags;
+ ap->ops->tf_read(ap, &qc->result_tf);
}
/**
if (ap->flags & ATA_FLAG_PIO_POLLING) {
switch (qc->tf.protocol) {
case ATA_PROT_PIO:
+ case ATA_PROT_NODATA:
case ATA_PROT_ATAPI:
case ATA_PROT_ATAPI_NODATA:
qc->tf.flags |= ATA_TFLAG_POLLING;
}
}
+ /* Some controllers show flaky interrupt behavior after
+ * setting xfer mode. Use polling instead.
+ */
+ if (unlikely(qc->tf.command == ATA_CMD_SET_FEATURES &&
+ qc->tf.feature == SETFEATURES_XFER) &&
+ (ap->flags & ATA_FLAG_SETXFER_POLLING))
+ qc->tf.flags |= ATA_TFLAG_POLLING;
+
/* select the device */
ata_dev_select(ap, qc->dev->devno, 1, 0);
inline unsigned int ata_host_intr (struct ata_port *ap,
struct ata_queued_cmd *qc)
{
+ struct ata_eh_info *ehi = &ap->eh_info;
u8 status, host_stat = 0;
VPRINTK("ata%u: protocol %d task_state %d\n",
- ap->id, qc->tf.protocol, ap->hsm_task_state);
+ ap->print_id, qc->tf.protocol, ap->hsm_task_state);
/* Check whether we are expecting interrupt in this state */
switch (ap->hsm_task_state) {
qc->tf.protocol == ATA_PROT_ATAPI_DMA) {
/* check status of DMA engine */
host_stat = ap->ops->bmdma_status(ap);
- VPRINTK("ata%u: host_stat 0x%X\n", ap->id, host_stat);
+ VPRINTK("ata%u: host_stat 0x%X\n",
+ ap->print_id, host_stat);
/* if it's not our irq... */
if (!(host_stat & ATA_DMA_INTR))
ap->ops->irq_clear(ap);
ata_hsm_move(ap, qc, status, 0);
+
+ if (unlikely(qc->err_mask) && (qc->tf.protocol == ATA_PROT_DMA ||
+ qc->tf.protocol == ATA_PROT_ATAPI_DMA))
+ ata_ehi_push_desc(ehi, "BMDMA stat 0x%x", host_stat);
+
return 1; /* irq handled */
idle_irq:
#ifdef ATA_IRQ_TRAP
if ((ap->stats.idle_irq % 1000) == 0) {
- ata_irq_ack(ap, 0); /* debug trap */
+ ap->ops->irq_ack(ap, 0); /* debug trap */
ata_port_printk(ap, KERN_WARNING, "irq trap\n");
return 1;
}
return 0;
}
+#ifdef CONFIG_PM
static int ata_host_request_pm(struct ata_host *host, pm_message_t mesg,
unsigned int action, unsigned int ehi_flags,
int wait)
ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET, 0);
host->dev->power.power_state = PMSG_ON;
}
+#endif
/**
* ata_port_start - Set port up for dma.
* LOCKING:
* Inherited from caller.
*/
-
-int ata_port_start (struct ata_port *ap)
+int ata_port_start(struct ata_port *ap)
{
struct device *dev = ap->dev;
int rc;
- ap->prd = dma_alloc_coherent(dev, ATA_PRD_TBL_SZ, &ap->prd_dma, GFP_KERNEL);
+ ap->prd = dmam_alloc_coherent(dev, ATA_PRD_TBL_SZ, &ap->prd_dma,
+ GFP_KERNEL);
if (!ap->prd)
return -ENOMEM;
rc = ata_pad_alloc(ap, dev);
- if (rc) {
- dma_free_coherent(dev, ATA_PRD_TBL_SZ, ap->prd, ap->prd_dma);
+ if (rc)
return rc;
- }
-
- DPRINTK("prd alloc, virt %p, dma %llx\n", ap->prd, (unsigned long long) ap->prd_dma);
+ DPRINTK("prd alloc, virt %p, dma %llx\n", ap->prd,
+ (unsigned long long)ap->prd_dma);
return 0;
}
-
-/**
- * ata_port_stop - Undo ata_port_start()
- * @ap: Port to shut down
- *
- * Frees the PRD table.
- *
- * May be used as the port_stop() entry in ata_port_operations.
- *
- * LOCKING:
- * Inherited from caller.
- */
-
-void ata_port_stop (struct ata_port *ap)
-{
- struct device *dev = ap->dev;
-
- dma_free_coherent(dev, ATA_PRD_TBL_SZ, ap->prd, ap->prd_dma);
- ata_pad_free(ap, dev);
-}
-
-void ata_host_stop (struct ata_host *host)
-{
- if (host->mmio_base)
- iounmap(host->mmio_base);
-}
-
/**
* ata_dev_init - Initialize an ata_device structure
* @dev: Device structure to initialize
ap->lock = &host->lock;
ap->flags = ATA_FLAG_DISABLED;
- ap->id = ata_unique_id++;
+ ap->print_id = ata_print_id++;
ap->ctl = ATA_DEVCTL_OBS;
ap->host = host;
ap->dev = ent->dev;
ap->msg_enable = ATA_MSG_DRV | ATA_MSG_ERR | ATA_MSG_WARN;
#endif
- INIT_WORK(&ap->port_task, NULL, NULL);
- INIT_WORK(&ap->hotplug_task, ata_scsi_hotplug, ap);
- INIT_WORK(&ap->scsi_rescan_task, ata_scsi_dev_rescan, ap);
+ INIT_DELAYED_WORK(&ap->port_task, NULL);
+ INIT_DELAYED_WORK(&ap->hotplug_task, ata_scsi_hotplug);
+ INIT_WORK(&ap->scsi_rescan_task, ata_scsi_dev_rescan);
INIT_LIST_HEAD(&ap->eh_done_q);
init_waitqueue_head(&ap->eh_wait_q);
{
ap->scsi_host = shost;
- shost->unique_id = ap->id;
+ shost->unique_id = ap->print_id;
shost->max_id = 16;
shost->max_lun = 1;
shost->max_channel = 1;
- shost->max_cmd_len = 12;
+ shost->max_cmd_len = 16;
}
/**
return ap;
}
+static void ata_host_release(struct device *gendev, void *res)
+{
+ struct ata_host *host = dev_get_drvdata(gendev);
+ int i;
+
+ for (i = 0; i < host->n_ports; i++) {
+ struct ata_port *ap = host->ports[i];
+
+ if (ap && ap->ops->port_stop)
+ ap->ops->port_stop(ap);
+ }
+
+ if (host->ops->host_stop)
+ host->ops->host_stop(host);
+
+ for (i = 0; i < host->n_ports; i++) {
+ struct ata_port *ap = host->ports[i];
+
+ if (ap)
+ scsi_host_put(ap->scsi_host);
+
+ host->ports[i] = NULL;
+ }
+
+ dev_set_drvdata(gendev, NULL);
+}
+
/**
* ata_sas_host_init - Initialize a host struct
* @host: host to initialize
int rc;
DPRINTK("ENTER\n");
-
+
if (ent->irq == 0) {
dev_printk(KERN_ERR, dev, "is not available: No interrupt assigned.\n");
return 0;
}
+
+ if (!devres_open_group(dev, ata_device_add, GFP_KERNEL))
+ return 0;
+
/* alloc a container for our list of ATA ports (buses) */
- host = kzalloc(sizeof(struct ata_host) +
- (ent->n_ports * sizeof(void *)), GFP_KERNEL);
+ host = devres_alloc(ata_host_release, sizeof(struct ata_host) +
+ (ent->n_ports * sizeof(void *)), GFP_KERNEL);
if (!host)
- return 0;
+ goto err_out;
+ devres_add(dev, host);
+ dev_set_drvdata(dev, host);
ata_host_init(host, dev, ent->_host_flags, ent->port_ops);
host->n_ports = ent->n_ports;
host->irq = ent->irq;
host->irq2 = ent->irq2;
- host->mmio_base = ent->mmio_base;
+ host->iomap = ent->iomap;
host->private_data = ent->private_data;
/* register each port bound to this device */
(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 %d\n",
+ ata_port_printk(ap, KERN_INFO, "%cATA max %s cmd 0x%p "
+ "ctl 0x%p bmdma 0x%p irq %d\n",
ap->flags & ATA_FLAG_SATA ? 'S' : 'P',
ata_mode_string(xfer_mode_mask),
ap->ioaddr.cmd_addr,
ap->ioaddr.bmdma_addr,
irq_line);
- ata_chk_status(ap);
- host->ops->irq_clear(ap);
- ata_eh_freeze_port(ap); /* freeze port before requesting IRQ */
+ /* freeze port before requesting IRQ */
+ ata_eh_freeze_port(ap);
}
/* obtain irq, that may be shared between channels */
- rc = request_irq(ent->irq, ent->port_ops->irq_handler, ent->irq_flags,
- DRV_NAME, host);
+ rc = devm_request_irq(dev, ent->irq, ent->port_ops->irq_handler,
+ ent->irq_flags, DRV_NAME, host);
if (rc) {
dev_printk(KERN_ERR, dev, "irq %lu request failed: %d\n",
ent->irq, rc);
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);
+ rc = devm_request_irq(dev, ent->irq2,
+ ent->port_ops->irq_handler, ent->irq_flags,
+ DRV_NAME, host);
if (rc) {
dev_printk(KERN_ERR, dev, "irq %lu request failed: %d\n",
ent->irq2, rc);
- goto err_out_free_irq;
+ goto err_out;
}
}
+ /* resource acquisition complete */
+ devres_remove_group(dev, ata_device_add);
+
/* perform each probe synchronously */
DPRINTK("probe begin\n");
for (i = 0; i < host->n_ports; i++) {
/* wait for EH to finish */
ata_port_wait_eh(ap);
} else {
- DPRINTK("ata%u: bus probe begin\n", ap->id);
+ DPRINTK("ata%u: bus probe begin\n", ap->print_id);
rc = ata_bus_probe(ap);
- DPRINTK("ata%u: bus probe end\n", ap->id);
+ DPRINTK("ata%u: bus probe end\n", ap->print_id);
if (rc) {
/* FIXME: do something useful here?
ata_scsi_scan_host(ap);
}
- dev_set_drvdata(dev, host);
-
VPRINTK("EXIT, returning %u\n", ent->n_ports);
return ent->n_ports; /* success */
-err_out_free_irq:
- free_irq(ent->irq, host);
-err_out:
- for (i = 0; i < host->n_ports; i++) {
- struct ata_port *ap = host->ports[i];
- if (ap) {
- ap->ops->port_stop(ap);
- scsi_host_put(ap->scsi_host);
- }
- }
-
- kfree(host);
- VPRINTK("EXIT, returning 0\n");
+ err_out:
+ devres_release_group(dev, ata_device_add);
+ VPRINTK("EXIT, returning %d\n", rc);
return 0;
}
}
/**
- * ata_host_remove - PCI layer callback for device removal
- * @host: ATA host set that was removed
+ * ata_host_detach - Detach all ports of an ATA host
+ * @host: Host to detach
*
- * Unregister all objects associated with this host set. Free those
- * objects.
+ * Detach all ports of @host.
*
* LOCKING:
- * Inherited from calling layer (may sleep).
+ * Kernel thread context (may sleep).
*/
-
-void ata_host_remove(struct ata_host *host)
+void ata_host_detach(struct ata_host *host)
{
- unsigned int i;
+ int i;
for (i = 0; i < host->n_ports; i++)
ata_port_detach(host->ports[i]);
-
- free_irq(host->irq, host);
- if (host->irq2)
- free_irq(host->irq2, host);
-
- for (i = 0; i < host->n_ports; i++) {
- struct ata_port *ap = host->ports[i];
-
- ata_scsi_release(ap->scsi_host);
-
- if ((ap->flags & ATA_FLAG_NO_LEGACY) == 0) {
- struct ata_ioports *ioaddr = &ap->ioaddr;
-
- /* 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->scsi_host);
- }
-
- if (host->ops->host_stop)
- host->ops->host_stop(host);
-
- kfree(host);
-}
-
-/**
- * ata_scsi_release - SCSI layer callback hook for host unload
- * @shost: libata host to be unloaded
- *
- * Performs all duties necessary to shut down a libata port...
- * Kill port kthread, disable port, and release resources.
- *
- * LOCKING:
- * Inherited from SCSI layer.
- *
- * RETURNS:
- * One.
- */
-
-int ata_scsi_release(struct Scsi_Host *shost)
-{
- struct ata_port *ap = ata_shost_to_port(shost);
-
- DPRINTK("ENTER\n");
-
- ap->ops->port_disable(ap);
- ap->ops->port_stop(ap);
-
- DPRINTK("EXIT\n");
- return 1;
}
struct ata_probe_ent *
{
struct ata_probe_ent *probe_ent;
- probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL);
+ probe_ent = devm_kzalloc(dev, sizeof(*probe_ent), GFP_KERNEL);
if (!probe_ent) {
printk(KERN_ERR DRV_NAME "(%s): out of memory\n",
kobject_name(&(dev->kobj)));
#ifdef CONFIG_PCI
-void ata_pci_host_stop (struct ata_host *host)
-{
- struct pci_dev *pdev = to_pci_dev(host->dev);
-
- pci_iounmap(pdev, host->mmio_base);
-}
-
/**
* ata_pci_remove_one - PCI layer callback for device removal
* @pdev: PCI device that was removed
*
- * PCI layer indicates to libata via this hook that
- * hot-unplug or module unload event has occurred.
- * Handle this by unregistering all objects associated
- * with this PCI device. Free those objects. Then finally
- * release PCI resources and disable device.
+ * PCI layer indicates to libata via this hook that hot-unplug or
+ * module unload event has occurred. Detach all ports. Resource
+ * release is handled via devres.
*
* LOCKING:
* Inherited from PCI layer (may sleep).
*/
-
-void ata_pci_remove_one (struct pci_dev *pdev)
+void ata_pci_remove_one(struct pci_dev *pdev)
{
struct device *dev = pci_dev_to_dev(pdev);
struct ata_host *host = dev_get_drvdata(dev);
- ata_host_remove(host);
-
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- dev_set_drvdata(dev, NULL);
+ ata_host_detach(host);
}
/* move to PCI subsystem */
return (tmp == bits->val) ? 1 : 0;
}
+#ifdef CONFIG_PM
void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t mesg)
{
pci_save_state(pdev);
+ pci_disable_device(pdev);
- if (mesg.event == PM_EVENT_SUSPEND) {
- pci_disable_device(pdev);
+ if (mesg.event == PM_EVENT_SUSPEND)
pci_set_power_state(pdev, PCI_D3hot);
- }
}
-void ata_pci_device_do_resume(struct pci_dev *pdev)
+int ata_pci_device_do_resume(struct pci_dev *pdev)
{
+ int rc;
+
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
- pci_enable_device(pdev);
+
+ rc = pcim_enable_device(pdev);
+ if (rc) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "failed to enable device after resume (%d)\n", rc);
+ return rc;
+ }
+
pci_set_master(pdev);
+ return 0;
}
int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
int ata_pci_device_resume(struct pci_dev *pdev)
{
struct ata_host *host = dev_get_drvdata(&pdev->dev);
+ int rc;
- ata_pci_device_do_resume(pdev);
- ata_host_resume(host);
- return 0;
+ rc = ata_pci_device_do_resume(pdev);
+ if (rc == 0)
+ ata_host_resume(host);
+ return rc;
}
+#endif /* CONFIG_PM */
+
#endif /* CONFIG_PCI */
EXPORT_SYMBOL_GPL(ata_std_ports);
EXPORT_SYMBOL_GPL(ata_host_init);
EXPORT_SYMBOL_GPL(ata_device_add);
-EXPORT_SYMBOL_GPL(ata_port_detach);
-EXPORT_SYMBOL_GPL(ata_host_remove);
+EXPORT_SYMBOL_GPL(ata_host_detach);
EXPORT_SYMBOL_GPL(ata_sg_init);
EXPORT_SYMBOL_GPL(ata_sg_init_one);
EXPORT_SYMBOL_GPL(ata_hsm_move);
EXPORT_SYMBOL_GPL(ata_tf_read);
EXPORT_SYMBOL_GPL(ata_noop_dev_select);
EXPORT_SYMBOL_GPL(ata_std_dev_select);
+EXPORT_SYMBOL_GPL(sata_print_link_status);
EXPORT_SYMBOL_GPL(ata_tf_to_fis);
EXPORT_SYMBOL_GPL(ata_tf_from_fis);
EXPORT_SYMBOL_GPL(ata_check_status);
EXPORT_SYMBOL_GPL(ata_altstatus);
EXPORT_SYMBOL_GPL(ata_exec_command);
EXPORT_SYMBOL_GPL(ata_port_start);
-EXPORT_SYMBOL_GPL(ata_port_stop);
-EXPORT_SYMBOL_GPL(ata_host_stop);
EXPORT_SYMBOL_GPL(ata_interrupt);
-EXPORT_SYMBOL_GPL(ata_mmio_data_xfer);
-EXPORT_SYMBOL_GPL(ata_pio_data_xfer);
-EXPORT_SYMBOL_GPL(ata_pio_data_xfer_noirq);
+EXPORT_SYMBOL_GPL(ata_do_set_mode);
+EXPORT_SYMBOL_GPL(ata_data_xfer);
+EXPORT_SYMBOL_GPL(ata_data_xfer_noirq);
EXPORT_SYMBOL_GPL(ata_qc_prep);
EXPORT_SYMBOL_GPL(ata_noop_qc_prep);
EXPORT_SYMBOL_GPL(ata_bmdma_setup);
EXPORT_SYMBOL_GPL(ata_bmdma_error_handler);
EXPORT_SYMBOL_GPL(ata_bmdma_post_internal_cmd);
EXPORT_SYMBOL_GPL(ata_port_probe);
+EXPORT_SYMBOL_GPL(ata_dev_disable);
EXPORT_SYMBOL_GPL(sata_set_spd);
EXPORT_SYMBOL_GPL(sata_phy_debounce);
EXPORT_SYMBOL_GPL(sata_phy_resume);
EXPORT_SYMBOL_GPL(ata_scsi_slave_config);
EXPORT_SYMBOL_GPL(ata_scsi_slave_destroy);
EXPORT_SYMBOL_GPL(ata_scsi_change_queue_depth);
-EXPORT_SYMBOL_GPL(ata_scsi_release);
EXPORT_SYMBOL_GPL(ata_host_intr);
EXPORT_SYMBOL_GPL(sata_scr_valid);
EXPORT_SYMBOL_GPL(sata_scr_read);
EXPORT_SYMBOL_GPL(sata_scr_write_flush);
EXPORT_SYMBOL_GPL(ata_port_online);
EXPORT_SYMBOL_GPL(ata_port_offline);
+#ifdef CONFIG_PM
EXPORT_SYMBOL_GPL(ata_host_suspend);
EXPORT_SYMBOL_GPL(ata_host_resume);
+#endif /* CONFIG_PM */
EXPORT_SYMBOL_GPL(ata_id_string);
EXPORT_SYMBOL_GPL(ata_id_c_string);
+EXPORT_SYMBOL_GPL(ata_id_to_dma_mode);
EXPORT_SYMBOL_GPL(ata_device_blacklisted);
EXPORT_SYMBOL_GPL(ata_scsi_simulate);
#ifdef CONFIG_PCI
EXPORT_SYMBOL_GPL(pci_test_config_bits);
-EXPORT_SYMBOL_GPL(ata_pci_host_stop);
EXPORT_SYMBOL_GPL(ata_pci_init_native_mode);
EXPORT_SYMBOL_GPL(ata_pci_init_one);
EXPORT_SYMBOL_GPL(ata_pci_remove_one);
+#ifdef CONFIG_PM
EXPORT_SYMBOL_GPL(ata_pci_device_do_suspend);
EXPORT_SYMBOL_GPL(ata_pci_device_do_resume);
EXPORT_SYMBOL_GPL(ata_pci_device_suspend);
EXPORT_SYMBOL_GPL(ata_pci_device_resume);
+#endif /* CONFIG_PM */
EXPORT_SYMBOL_GPL(ata_pci_default_filter);
EXPORT_SYMBOL_GPL(ata_pci_clear_simplex);
#endif /* CONFIG_PCI */
+#ifdef CONFIG_PM
EXPORT_SYMBOL_GPL(ata_scsi_device_suspend);
EXPORT_SYMBOL_GPL(ata_scsi_device_resume);
+#endif /* CONFIG_PM */
EXPORT_SYMBOL_GPL(ata_eng_timeout);
EXPORT_SYMBOL_GPL(ata_port_schedule_eh);
EXPORT_SYMBOL_GPL(ata_eh_qc_complete);
EXPORT_SYMBOL_GPL(ata_eh_qc_retry);
EXPORT_SYMBOL_GPL(ata_do_eh);
+EXPORT_SYMBOL_GPL(ata_irq_on);
+EXPORT_SYMBOL_GPL(ata_dummy_irq_on);
+EXPORT_SYMBOL_GPL(ata_irq_ack);
+EXPORT_SYMBOL_GPL(ata_dummy_irq_ack);
+EXPORT_SYMBOL_GPL(ata_dev_try_classify);
+
+EXPORT_SYMBOL_GPL(ata_cable_40wire);
+EXPORT_SYMBOL_GPL(ata_cable_80wire);
+EXPORT_SYMBOL_GPL(ata_cable_unknown);
+EXPORT_SYMBOL_GPL(ata_cable_sata);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff