struct workqueue_struct *ata_aux_wq;
+struct ata_force_param {
+ const char *name;
+ unsigned int cbl;
+ int spd_limit;
+ unsigned long xfer_mask;
+ unsigned int horkage_on;
+ unsigned int horkage_off;
+};
+
+struct ata_force_ent {
+ int port;
+ int device;
+ struct ata_force_param param;
+};
+
+static struct ata_force_ent *ata_force_tbl;
+static int ata_force_tbl_size;
+
+static char ata_force_param_buf[PAGE_SIZE] __initdata;
+module_param_string(force, ata_force_param_buf, sizeof(ata_force_param_buf), 0444);
+MODULE_PARM_DESC(force, "Force ATA configurations including cable type, link speed and transfer mode (see Documentation/kernel-parameters.txt for details)");
+
int atapi_enabled = 1;
module_param(atapi_enabled, int, 0444);
MODULE_PARM_DESC(atapi_enabled, "Enable discovery of ATAPI devices (0=off, 1=on)");
module_param_named(noacpi, libata_noacpi, int, 0444);
MODULE_PARM_DESC(noacpi, "Disables the use of ACPI in probe/suspend/resume when set");
+int libata_allow_tpm = 0;
+module_param_named(allow_tpm, libata_allow_tpm, int, 0444);
+MODULE_PARM_DESC(allow_tpm, "Permit the use of TPM commands");
+
MODULE_AUTHOR("Jeff Garzik");
MODULE_DESCRIPTION("Library module for ATA devices");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
+/**
+ * ata_force_cbl - force cable type according to libata.force
+ * @link: ATA link of interest
+ *
+ * Force cable type according to libata.force and whine about it.
+ * The last entry which has matching port number is used, so it
+ * can be specified as part of device force parameters. For
+ * example, both "a:40c,1.00:udma4" and "1.00:40c,udma4" have the
+ * same effect.
+ *
+ * LOCKING:
+ * EH context.
+ */
+void ata_force_cbl(struct ata_port *ap)
+{
+ int i;
+
+ for (i = ata_force_tbl_size - 1; i >= 0; i--) {
+ const struct ata_force_ent *fe = &ata_force_tbl[i];
+
+ if (fe->port != -1 && fe->port != ap->print_id)
+ continue;
+
+ if (fe->param.cbl == ATA_CBL_NONE)
+ continue;
+
+ ap->cbl = fe->param.cbl;
+ ata_port_printk(ap, KERN_NOTICE,
+ "FORCE: cable set to %s\n", fe->param.name);
+ return;
+ }
+}
+
+/**
+ * ata_force_spd_limit - force SATA spd limit according to libata.force
+ * @link: ATA link of interest
+ *
+ * Force SATA spd limit according to libata.force and whine about
+ * it. When only the port part is specified (e.g. 1:), the limit
+ * applies to all links connected to both the host link and all
+ * fan-out ports connected via PMP. If the device part is
+ * specified as 0 (e.g. 1.00:), it specifies the first fan-out
+ * link not the host link. Device number 15 always points to the
+ * host link whether PMP is attached or not.
+ *
+ * LOCKING:
+ * EH context.
+ */
+static void ata_force_spd_limit(struct ata_link *link)
+{
+ int linkno, i;
+
+ if (ata_is_host_link(link))
+ linkno = 15;
+ else
+ linkno = link->pmp;
+
+ for (i = ata_force_tbl_size - 1; i >= 0; i--) {
+ const struct ata_force_ent *fe = &ata_force_tbl[i];
+
+ if (fe->port != -1 && fe->port != link->ap->print_id)
+ continue;
+
+ if (fe->device != -1 && fe->device != linkno)
+ continue;
+
+ if (!fe->param.spd_limit)
+ continue;
+
+ link->hw_sata_spd_limit = (1 << fe->param.spd_limit) - 1;
+ ata_link_printk(link, KERN_NOTICE,
+ "FORCE: PHY spd limit set to %s\n", fe->param.name);
+ return;
+ }
+}
+
+/**
+ * ata_force_xfermask - force xfermask according to libata.force
+ * @dev: ATA device of interest
+ *
+ * Force xfer_mask according to libata.force and whine about it.
+ * For consistency with link selection, device number 15 selects
+ * the first device connected to the host link.
+ *
+ * LOCKING:
+ * EH context.
+ */
+static void ata_force_xfermask(struct ata_device *dev)
+{
+ int devno = dev->link->pmp + dev->devno;
+ int alt_devno = devno;
+ int i;
+
+ /* allow n.15 for the first device attached to host port */
+ if (ata_is_host_link(dev->link) && devno == 0)
+ alt_devno = 15;
+
+ for (i = ata_force_tbl_size - 1; i >= 0; i--) {
+ const struct ata_force_ent *fe = &ata_force_tbl[i];
+ unsigned long pio_mask, mwdma_mask, udma_mask;
+
+ if (fe->port != -1 && fe->port != dev->link->ap->print_id)
+ continue;
+
+ if (fe->device != -1 && fe->device != devno &&
+ fe->device != alt_devno)
+ continue;
+
+ if (!fe->param.xfer_mask)
+ continue;
+
+ ata_unpack_xfermask(fe->param.xfer_mask,
+ &pio_mask, &mwdma_mask, &udma_mask);
+ if (udma_mask)
+ dev->udma_mask = udma_mask;
+ else if (mwdma_mask) {
+ dev->udma_mask = 0;
+ dev->mwdma_mask = mwdma_mask;
+ } else {
+ dev->udma_mask = 0;
+ dev->mwdma_mask = 0;
+ dev->pio_mask = pio_mask;
+ }
+
+ ata_dev_printk(dev, KERN_NOTICE,
+ "FORCE: xfer_mask set to %s\n", fe->param.name);
+ return;
+ }
+}
+
+/**
+ * ata_force_horkage - force horkage according to libata.force
+ * @dev: ATA device of interest
+ *
+ * Force horkage according to libata.force and whine about it.
+ * For consistency with link selection, device number 15 selects
+ * the first device connected to the host link.
+ *
+ * LOCKING:
+ * EH context.
+ */
+static void ata_force_horkage(struct ata_device *dev)
+{
+ int devno = dev->link->pmp + dev->devno;
+ int alt_devno = devno;
+ int i;
+
+ /* allow n.15 for the first device attached to host port */
+ if (ata_is_host_link(dev->link) && devno == 0)
+ alt_devno = 15;
+
+ for (i = 0; i < ata_force_tbl_size; i++) {
+ const struct ata_force_ent *fe = &ata_force_tbl[i];
+
+ if (fe->port != -1 && fe->port != dev->link->ap->print_id)
+ continue;
+
+ if (fe->device != -1 && fe->device != devno &&
+ fe->device != alt_devno)
+ continue;
+
+ if (!(~dev->horkage & fe->param.horkage_on) &&
+ !(dev->horkage & fe->param.horkage_off))
+ continue;
+
+ dev->horkage |= fe->param.horkage_on;
+ dev->horkage &= ~fe->param.horkage_off;
+
+ ata_dev_printk(dev, KERN_NOTICE,
+ "FORCE: horkage modified (%s)\n", fe->param.name);
+ }
+}
+
/**
* ata_tf_to_fis - Convert ATA taskfile to SATA FIS structure
* @tf: Taskfile to convert
* RETURNS:
* Packed xfer_mask.
*/
-static unsigned int ata_pack_xfermask(unsigned int pio_mask,
- unsigned int mwdma_mask,
- unsigned int udma_mask)
+unsigned long ata_pack_xfermask(unsigned long pio_mask,
+ unsigned long mwdma_mask,
+ unsigned long udma_mask)
{
return ((pio_mask << ATA_SHIFT_PIO) & ATA_MASK_PIO) |
((mwdma_mask << ATA_SHIFT_MWDMA) & ATA_MASK_MWDMA) |
* Unpack @xfer_mask into @pio_mask, @mwdma_mask and @udma_mask.
* Any NULL distination masks will be ignored.
*/
-static void ata_unpack_xfermask(unsigned int xfer_mask,
- unsigned int *pio_mask,
- unsigned int *mwdma_mask,
- unsigned int *udma_mask)
+void ata_unpack_xfermask(unsigned long xfer_mask, unsigned long *pio_mask,
+ unsigned long *mwdma_mask, unsigned long *udma_mask)
{
if (pio_mask)
*pio_mask = (xfer_mask & ATA_MASK_PIO) >> ATA_SHIFT_PIO;
int shift, bits;
u8 base;
} ata_xfer_tbl[] = {
- { ATA_SHIFT_PIO, ATA_BITS_PIO, XFER_PIO_0 },
- { ATA_SHIFT_MWDMA, ATA_BITS_MWDMA, XFER_MW_DMA_0 },
- { ATA_SHIFT_UDMA, ATA_BITS_UDMA, XFER_UDMA_0 },
+ { ATA_SHIFT_PIO, ATA_NR_PIO_MODES, XFER_PIO_0 },
+ { ATA_SHIFT_MWDMA, ATA_NR_MWDMA_MODES, XFER_MW_DMA_0 },
+ { ATA_SHIFT_UDMA, ATA_NR_UDMA_MODES, XFER_UDMA_0 },
{ -1, },
};
* None.
*
* RETURNS:
- * Matching XFER_* value, 0 if no match found.
+ * Matching XFER_* value, 0xff if no match found.
*/
-static u8 ata_xfer_mask2mode(unsigned int xfer_mask)
+u8 ata_xfer_mask2mode(unsigned long xfer_mask)
{
int highbit = fls(xfer_mask) - 1;
const struct ata_xfer_ent *ent;
for (ent = ata_xfer_tbl; ent->shift >= 0; ent++)
if (highbit >= ent->shift && highbit < ent->shift + ent->bits)
return ent->base + highbit - ent->shift;
- return 0;
+ return 0xff;
}
/**
* RETURNS:
* Matching xfer_mask, 0 if no match found.
*/
-static unsigned int ata_xfer_mode2mask(u8 xfer_mode)
+unsigned long ata_xfer_mode2mask(u8 xfer_mode)
{
const struct ata_xfer_ent *ent;
for (ent = ata_xfer_tbl; ent->shift >= 0; ent++)
if (xfer_mode >= ent->base && xfer_mode < ent->base + ent->bits)
- return 1 << (ent->shift + xfer_mode - ent->base);
+ return ((2 << (ent->shift + xfer_mode - ent->base)) - 1)
+ & ~((1 << ent->shift) - 1);
return 0;
}
* RETURNS:
* Matching xfer_shift, -1 if no match found.
*/
-static int ata_xfer_mode2shift(unsigned int xfer_mode)
+int ata_xfer_mode2shift(unsigned long xfer_mode)
{
const struct ata_xfer_ent *ent;
* Constant C string representing highest speed listed in
* @mode_mask, or the constant C string "<n/a>".
*/
-static const char *ata_mode_string(unsigned int xfer_mask)
+const char *ata_mode_string(unsigned long xfer_mask)
{
static const char * const xfer_mode_str[] = {
"PIO0",
if (r_err)
*r_err = err;
- /* see if device passed diags: if master then continue and warn later */
- if (err == 0 && dev->devno == 0)
+ /* see if device passed diags: continue and warn later */
+ if (err == 0)
/* diagnostic fail : do nothing _YET_ */
dev->horkage |= ATA_HORKAGE_DIAGNOSTIC;
else if (err == 1)
return 0;
}
-/**
- * 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
* RETURNS:
* Computed xfermask
*/
-static unsigned int ata_id_xfermask(const u16 *id)
+unsigned long ata_id_xfermask(const u16 *id)
{
- unsigned int pio_mask, mwdma_mask, udma_mask;
+ unsigned long pio_mask, mwdma_mask, udma_mask;
/* Usual case. Word 53 indicates word 64 is valid */
if (id[ATA_ID_FIELD_VALID] & (1 << 1)) {
}
/**
- * ata_port_queue_task - Queue port_task
+ * ata_pio_queue_task - Queue port_task
* @ap: The ata_port to queue port_task for
* @fn: workqueue function to be scheduled
* @data: data for @fn to use
* one task is active at any given time.
*
* libata core layer takes care of synchronization between
- * port_task and EH. ata_port_queue_task() may be ignored for EH
+ * port_task and EH. ata_pio_queue_task() may be ignored for EH
* synchronization.
*
* LOCKING:
* Inherited from caller.
*/
-void ata_port_queue_task(struct ata_port *ap, work_func_t fn, void *data,
- unsigned long delay)
+static void ata_pio_queue_task(struct ata_port *ap, void *data,
+ unsigned long delay)
{
- PREPARE_DELAYED_WORK(&ap->port_task, fn);
ap->port_task_data = data;
/* may fail if ata_port_flush_task() in progress */
struct ata_eh_context *ehc = &dev->link->eh_context;
int print_info = ehc->i.flags & ATA_EHI_PRINTINFO;
const u16 *id = dev->id;
- unsigned int xfer_mask;
+ unsigned long xfer_mask;
char revbuf[7]; /* XYZ-99\0 */
char fwrevbuf[ATA_ID_FW_REV_LEN+1];
char modelbuf[ATA_ID_PROD_LEN+1];
/* set horkage */
dev->horkage |= ata_dev_blacklisted(dev);
+ ata_force_horkage(dev);
/* let ACPI work its magic */
rc = ata_acpi_on_devcfg(dev);
"supports DRM functions and may "
"not be fully accessable.\n");
snprintf(revbuf, 7, "CFA");
- } else
+ } else {
snprintf(revbuf, 7, "ATA-%d", ata_id_major_version(id));
+ /* Warn the user if the device has TPM extensions */
+ if (ata_id_has_tpm(id))
+ ata_dev_printk(dev, KERN_WARNING,
+ "supports DRM functions and may "
+ "not be fully accessable.\n");
+ }
dev->n_sectors = ata_id_n_sectors(id);
dev->flags |= ATA_DFLAG_DIPM;
}
- if (dev->horkage & ATA_HORKAGE_DIAGNOSTIC) {
- /* Let the user know. We don't want to disallow opens for
- rescue purposes, or in case the vendor is just a blithering
- idiot */
- if (print_info) {
- ata_dev_printk(dev, KERN_WARNING,
-"Drive reports diagnostics failure. This may indicate a drive\n");
- ata_dev_printk(dev, KERN_WARNING,
-"fault or invalid emulation. Contact drive vendor for information.\n");
- }
- }
-
- /* limit bridge transfers to udma5, 200 sectors */
+ /* Limit PATA drive on SATA cable bridge transfers to udma5,
+ 200 sectors */
if (ata_dev_knobble(dev)) {
if (ata_msg_drv(ap) && print_info)
ata_dev_printk(dev, KERN_INFO,
if (ap->ops->dev_config)
ap->ops->dev_config(dev);
+ if (dev->horkage & ATA_HORKAGE_DIAGNOSTIC) {
+ /* Let the user know. We don't want to disallow opens for
+ rescue purposes, or in case the vendor is just a blithering
+ idiot. Do this after the dev_config call as some controllers
+ with buggy firmware may want to avoid reporting false device
+ bugs */
+
+ if (print_info) {
+ ata_dev_printk(dev, KERN_WARNING,
+"Drive reports diagnostics failure. This may indicate a drive\n");
+ ata_dev_printk(dev, KERN_WARNING,
+"fault or invalid emulation. Contact drive vendor for information.\n");
+ }
+ }
+
if (ata_msg_probe(ap))
ata_dev_printk(dev, KERN_DEBUG, "%s: EXIT, drv_stat = 0x%x\n",
__FUNCTION__, ata_chk_status(ap));
return ATA_CBL_PATA_UNK;
}
+/**
+ * ata_cable_ignore - return ignored PATA cable.
+ * @ap: port
+ *
+ * Helper method for drivers which don't use cable type to limit
+ * transfer mode.
+ */
+int ata_cable_ignore(struct ata_port *ap)
+{
+ return ATA_CBL_PATA_IGN;
+}
+
/**
* ata_cable_sata - return SATA cable type
* @ap: port
*/
static const struct ata_timing ata_timing[] = {
+/* { XFER_PIO_SLOW, 120, 290, 240, 960, 290, 240, 960, 0 }, */
+ { XFER_PIO_0, 70, 290, 240, 600, 165, 150, 600, 0 },
+ { XFER_PIO_1, 50, 290, 93, 383, 125, 100, 383, 0 },
+ { XFER_PIO_2, 30, 290, 40, 330, 100, 90, 240, 0 },
+ { XFER_PIO_3, 30, 80, 70, 180, 80, 70, 180, 0 },
+ { XFER_PIO_4, 25, 70, 25, 120, 70, 25, 120, 0 },
+ { XFER_PIO_5, 15, 65, 25, 100, 65, 25, 100, 0 },
+ { XFER_PIO_6, 10, 55, 20, 80, 55, 20, 80, 0 },
- { XFER_UDMA_6, 0, 0, 0, 0, 0, 0, 0, 15 },
- { XFER_UDMA_5, 0, 0, 0, 0, 0, 0, 0, 20 },
- { XFER_UDMA_4, 0, 0, 0, 0, 0, 0, 0, 30 },
- { XFER_UDMA_3, 0, 0, 0, 0, 0, 0, 0, 45 },
+ { XFER_SW_DMA_0, 120, 0, 0, 0, 480, 480, 960, 0 },
+ { XFER_SW_DMA_1, 90, 0, 0, 0, 240, 240, 480, 0 },
+ { XFER_SW_DMA_2, 60, 0, 0, 0, 120, 120, 240, 0 },
- { XFER_MW_DMA_4, 25, 0, 0, 0, 55, 20, 80, 0 },
+ { XFER_MW_DMA_0, 60, 0, 0, 0, 215, 215, 480, 0 },
+ { XFER_MW_DMA_1, 45, 0, 0, 0, 80, 50, 150, 0 },
+ { XFER_MW_DMA_2, 25, 0, 0, 0, 70, 25, 120, 0 },
{ XFER_MW_DMA_3, 25, 0, 0, 0, 65, 25, 100, 0 },
- { XFER_UDMA_2, 0, 0, 0, 0, 0, 0, 0, 60 },
- { XFER_UDMA_1, 0, 0, 0, 0, 0, 0, 0, 80 },
- { XFER_UDMA_0, 0, 0, 0, 0, 0, 0, 0, 120 },
+ { XFER_MW_DMA_4, 25, 0, 0, 0, 55, 20, 80, 0 },
/* { XFER_UDMA_SLOW, 0, 0, 0, 0, 0, 0, 0, 150 }, */
-
- { XFER_MW_DMA_2, 25, 0, 0, 0, 70, 25, 120, 0 },
- { XFER_MW_DMA_1, 45, 0, 0, 0, 80, 50, 150, 0 },
- { XFER_MW_DMA_0, 60, 0, 0, 0, 215, 215, 480, 0 },
-
- { XFER_SW_DMA_2, 60, 0, 0, 0, 120, 120, 240, 0 },
- { XFER_SW_DMA_1, 90, 0, 0, 0, 240, 240, 480, 0 },
- { XFER_SW_DMA_0, 120, 0, 0, 0, 480, 480, 960, 0 },
-
- { XFER_PIO_6, 10, 55, 20, 80, 55, 20, 80, 0 },
- { XFER_PIO_5, 15, 65, 25, 100, 65, 25, 100, 0 },
- { XFER_PIO_4, 25, 70, 25, 120, 70, 25, 120, 0 },
- { XFER_PIO_3, 30, 80, 70, 180, 80, 70, 180, 0 },
-
- { XFER_PIO_2, 30, 290, 40, 330, 100, 90, 240, 0 },
- { XFER_PIO_1, 50, 290, 93, 383, 125, 100, 383, 0 },
- { XFER_PIO_0, 70, 290, 240, 600, 165, 150, 600, 0 },
-
-/* { XFER_PIO_SLOW, 120, 290, 240, 960, 290, 240, 960, 0 }, */
+ { XFER_UDMA_0, 0, 0, 0, 0, 0, 0, 0, 120 },
+ { XFER_UDMA_1, 0, 0, 0, 0, 0, 0, 0, 80 },
+ { XFER_UDMA_2, 0, 0, 0, 0, 0, 0, 0, 60 },
+ { XFER_UDMA_3, 0, 0, 0, 0, 0, 0, 0, 45 },
+ { XFER_UDMA_4, 0, 0, 0, 0, 0, 0, 0, 30 },
+ { XFER_UDMA_5, 0, 0, 0, 0, 0, 0, 0, 20 },
+ { XFER_UDMA_6, 0, 0, 0, 0, 0, 0, 0, 15 },
{ 0xFF }
};
if (what & ATA_TIMING_UDMA ) m->udma = max(a->udma, b->udma);
}
-static const struct ata_timing *ata_timing_find_mode(unsigned short speed)
+const struct ata_timing *ata_timing_find_mode(u8 xfer_mode)
{
- const struct ata_timing *t;
+ const struct ata_timing *t = ata_timing;
- for (t = ata_timing; t->mode != speed; t++)
- if (t->mode == 0xFF)
- return NULL;
- return t;
+ while (xfer_mode > t->mode)
+ t++;
+
+ if (xfer_mode == t->mode)
+ return t;
+ return NULL;
}
int ata_timing_compute(struct ata_device *adev, unsigned short speed,
return 0;
}
+/**
+ * ata_timing_cycle2mode - find xfer mode for the specified cycle duration
+ * @xfer_shift: ATA_SHIFT_* value for transfer type to examine.
+ * @cycle: cycle duration in ns
+ *
+ * Return matching xfer mode for @cycle. The returned mode is of
+ * the transfer type specified by @xfer_shift. If @cycle is too
+ * slow for @xfer_shift, 0xff is returned. If @cycle is faster
+ * than the fastest known mode, the fasted mode is returned.
+ *
+ * LOCKING:
+ * None.
+ *
+ * RETURNS:
+ * Matching xfer_mode, 0xff if no match found.
+ */
+u8 ata_timing_cycle2mode(unsigned int xfer_shift, int cycle)
+{
+ u8 base_mode = 0xff, last_mode = 0xff;
+ const struct ata_xfer_ent *ent;
+ const struct ata_timing *t;
+
+ for (ent = ata_xfer_tbl; ent->shift >= 0; ent++)
+ if (ent->shift == xfer_shift)
+ base_mode = ent->base;
+
+ for (t = ata_timing_find_mode(base_mode);
+ t && ata_xfer_mode2shift(t->mode) == xfer_shift; t++) {
+ unsigned short this_cycle;
+
+ switch (xfer_shift) {
+ case ATA_SHIFT_PIO:
+ case ATA_SHIFT_MWDMA:
+ this_cycle = t->cycle;
+ break;
+ case ATA_SHIFT_UDMA:
+ this_cycle = t->udma;
+ break;
+ default:
+ return 0xff;
+ }
+
+ if (cycle > this_cycle)
+ break;
+
+ last_mode = t->mode;
+ }
+
+ return last_mode;
+}
+
/**
* ata_down_xfermask_limit - adjust dev xfer masks downward
* @dev: Device to adjust xfer masks
int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel)
{
char buf[32];
- unsigned int orig_mask, xfer_mask;
- unsigned int pio_mask, mwdma_mask, udma_mask;
+ unsigned long orig_mask, xfer_mask;
+ unsigned long pio_mask, mwdma_mask, udma_mask;
int quiet, highbit;
quiet = !!(sel & ATA_DNXFER_QUIET);
static int ata_dev_set_mode(struct ata_device *dev)
{
struct ata_eh_context *ehc = &dev->link->eh_context;
+ const char *dev_err_whine = "";
+ int ign_dev_err = 0;
unsigned int err_mask;
int rc;
err_mask = ata_dev_set_xfermode(dev);
+ if (err_mask & ~AC_ERR_DEV)
+ goto fail;
+
+ /* revalidate */
+ ehc->i.flags |= ATA_EHI_POST_SETMODE;
+ rc = ata_dev_revalidate(dev, ATA_DEV_UNKNOWN, 0);
+ ehc->i.flags &= ~ATA_EHI_POST_SETMODE;
+ if (rc)
+ return rc;
+
/* 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;
+ ign_dev_err = 1;
/* Some very old devices and some bad newer ones fail any kind of
SET_XFERMODE request but support PIO0-2 timings and no IORDY */
if (dev->xfer_shift == ATA_SHIFT_PIO && !ata_id_has_iordy(dev->id) &&
dev->pio_mode <= XFER_PIO_2)
- err_mask &= ~AC_ERR_DEV;
+ ign_dev_err = 1;
/* Early MWDMA devices do DMA but don't allow DMA mode setting.
Don't fail an MWDMA0 set IFF the device indicates it is in MWDMA0 */
- if (dev->xfer_shift == ATA_SHIFT_MWDMA &&
+ if (dev->xfer_shift == ATA_SHIFT_MWDMA &&
dev->dma_mode == XFER_MW_DMA_0 &&
(dev->id[63] >> 8) & 1)
- err_mask &= ~AC_ERR_DEV;
+ ign_dev_err = 1;
- if (err_mask) {
- ata_dev_printk(dev, KERN_ERR, "failed to set xfermode "
- "(err_mask=0x%x)\n", err_mask);
- return -EIO;
- }
+ /* if the device is actually configured correctly, ignore dev err */
+ if (dev->xfer_mode == ata_xfer_mask2mode(ata_id_xfermask(dev->id)))
+ ign_dev_err = 1;
- ehc->i.flags |= ATA_EHI_POST_SETMODE;
- rc = ata_dev_revalidate(dev, ATA_DEV_UNKNOWN, 0);
- ehc->i.flags &= ~ATA_EHI_POST_SETMODE;
- if (rc)
- return rc;
+ if (err_mask & AC_ERR_DEV) {
+ if (!ign_dev_err)
+ goto fail;
+ else
+ dev_err_whine = " (device error ignored)";
+ }
DPRINTK("xfer_shift=%u, xfer_mode=0x%x\n",
dev->xfer_shift, (int)dev->xfer_mode);
- ata_dev_printk(dev, KERN_INFO, "configured for %s\n",
- ata_mode_string(ata_xfer_mode2mask(dev->xfer_mode)));
+ ata_dev_printk(dev, KERN_INFO, "configured for %s%s\n",
+ ata_mode_string(ata_xfer_mode2mask(dev->xfer_mode)),
+ dev_err_whine);
+
return 0;
+
+ fail:
+ ata_dev_printk(dev, KERN_ERR, "failed to set xfermode "
+ "(err_mask=0x%x)\n", err_mask);
+ return -EIO;
}
/**
* ata_do_set_mode - Program timings and issue SET FEATURES - XFER
* @link: link on which timings will be programmed
- * @r_failed_dev: out paramter for failed device
+ * @r_failed_dev: out parameter for failed device
*
* Standard implementation of the function used to tune and set
* ATA device disk transfer mode (PIO3, UDMA6, etc.). If
/* step 1: calculate xfer_mask */
ata_link_for_each_dev(dev, link) {
- unsigned int pio_mask, dma_mask;
+ unsigned long pio_mask, dma_mask;
unsigned int mode_mask;
if (!ata_dev_enabled(dev))
mode_mask = ATA_DMA_MASK_CFA;
ata_dev_xfermask(dev);
+ ata_force_xfermask(dev);
pio_mask = ata_pack_xfermask(dev->pio_mask, 0, 0);
dma_mask = ata_pack_xfermask(0, dev->mwdma_mask, dev->udma_mask);
dev->dma_mode = ata_xfer_mask2mode(dma_mask);
found = 1;
- if (dev->dma_mode)
+ if (dev->dma_mode != 0xff)
used_dma = 1;
}
if (!found)
if (!ata_dev_enabled(dev))
continue;
- if (!dev->pio_mode) {
+ if (dev->pio_mode == 0xff) {
ata_dev_printk(dev, KERN_WARNING, "no PIO support\n");
rc = -EINVAL;
goto out;
/* step 3: set host DMA timings */
ata_link_for_each_dev(dev, link) {
- if (!ata_dev_enabled(dev) || !dev->dma_mode)
+ if (!ata_dev_enabled(dev) || dev->dma_mode == 0xff)
continue;
dev->xfer_mode = dev->dma_mode;
return rc;
}
-/**
- * ata_set_mode - Program timings and issue SET FEATURES - XFER
- * @link: link 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_link *link, struct ata_device **r_failed_dev)
-{
- struct ata_port *ap = link->ap;
-
- /* has private set_mode? */
- if (ap->ops->set_mode)
- return ap->ops->set_mode(link, r_failed_dev);
- return ata_do_set_mode(link, r_failed_dev);
-}
-
/**
* ata_tf_to_host - issue ATA taskfile to host controller
* @ap: port to which command is being issued
/* NCQ is broken */
{ "Maxtor *", "BANC*", ATA_HORKAGE_NONCQ },
{ "Maxtor 7V300F0", "VA111630", ATA_HORKAGE_NONCQ },
- { "HITACHI HDS7250SASUN500G*", NULL, ATA_HORKAGE_NONCQ },
- { "HITACHI HDS7225SBSUN250G*", NULL, ATA_HORKAGE_NONCQ },
{ "ST380817AS", "3.42", ATA_HORKAGE_NONCQ },
{ "ST3160023AS", "3.42", ATA_HORKAGE_NONCQ },
/* Devices which report 1 sector over size HPA */
{ "ST340823A", NULL, ATA_HORKAGE_HPA_SIZE, },
{ "ST320413A", NULL, ATA_HORKAGE_HPA_SIZE, },
+ { "ST310211A", NULL, ATA_HORKAGE_HPA_SIZE, },
/* Devices which get the IVB wrong */
{ "QUANTUM FIREBALLlct10 05", "A03.0900", ATA_HORKAGE_IVB, },
tf.feature = SETFEATURES_XFER;
tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE | ATA_TFLAG_POLLING;
tf.protocol = ATA_PROT_NODATA;
- tf.nsect = dev->xfer_mode;
+ /* If we are using IORDY we must send the mode setting command */
+ if (ata_pio_need_iordy(dev))
+ tf.nsect = dev->xfer_mode;
+ /* If the device has IORDY and the controller does not - turn it off */
+ else if (ata_id_has_iordy(dev->id))
+ tf.nsect = 0x01;
+ else /* In the ancient relic department - skip all of this */
+ return 0;
err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0, 0);
void ata_sg_clean(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
- struct scatterlist *sg = qc->__sg;
+ struct scatterlist *sg = qc->sg;
int dir = qc->dma_dir;
- void *pad_buf = NULL;
- WARN_ON(!(qc->flags & ATA_QCFLAG_DMAMAP));
WARN_ON(sg == NULL);
- if (qc->flags & ATA_QCFLAG_SINGLE)
- WARN_ON(qc->n_elem > 1);
-
VPRINTK("unmapping %u sg elements\n", qc->n_elem);
- /* if we padded the buffer out to 32-bit bound, and data
- * xfer direction is from-device, we must copy from the
- * pad buffer back into the supplied buffer
- */
- if (qc->pad_len && !(qc->tf.flags & ATA_TFLAG_WRITE))
- pad_buf = ap->pad + (qc->tag * ATA_DMA_PAD_SZ);
-
- if (qc->flags & ATA_QCFLAG_SG) {
- if (qc->n_elem)
- dma_unmap_sg(ap->dev, sg, qc->n_elem, dir);
- /* restore last sg */
- sg_last(sg, qc->orig_n_elem)->length += qc->pad_len;
- if (pad_buf) {
- struct scatterlist *psg = &qc->pad_sgent;
- void *addr = kmap_atomic(sg_page(psg), KM_IRQ0);
- memcpy(addr + psg->offset, pad_buf, qc->pad_len);
- kunmap_atomic(addr, KM_IRQ0);
- }
- } else {
- if (qc->n_elem)
- dma_unmap_single(ap->dev,
- sg_dma_address(&sg[0]), sg_dma_len(&sg[0]),
- dir);
- /* restore sg */
- sg->length += qc->pad_len;
- if (pad_buf)
- memcpy(qc->buf_virt + sg->length - qc->pad_len,
- pad_buf, qc->pad_len);
- }
+ if (qc->n_elem)
+ dma_unmap_sg(ap->dev, sg, qc->n_elem, dir);
qc->flags &= ~ATA_QCFLAG_DMAMAP;
- qc->__sg = NULL;
+ qc->sg = NULL;
}
/**
{
struct ata_port *ap = qc->ap;
struct scatterlist *sg;
- unsigned int idx;
+ unsigned int si, pi;
- WARN_ON(qc->__sg == NULL);
- WARN_ON(qc->n_elem == 0 && qc->pad_len == 0);
-
- idx = 0;
- ata_for_each_sg(sg, qc) {
+ pi = 0;
+ for_each_sg(qc->sg, sg, qc->n_elem, si) {
u32 addr, offset;
u32 sg_len, len;
if ((offset + sg_len) > 0x10000)
len = 0x10000 - offset;
- ap->prd[idx].addr = cpu_to_le32(addr);
- ap->prd[idx].flags_len = cpu_to_le32(len & 0xffff);
- VPRINTK("PRD[%u] = (0x%X, 0x%X)\n", idx, addr, len);
+ ap->prd[pi].addr = cpu_to_le32(addr);
+ ap->prd[pi].flags_len = cpu_to_le32(len & 0xffff);
+ VPRINTK("PRD[%u] = (0x%X, 0x%X)\n", pi, addr, len);
- idx++;
+ pi++;
sg_len -= len;
addr += len;
}
}
- if (idx)
- ap->prd[idx - 1].flags_len |= cpu_to_le32(ATA_PRD_EOT);
+ ap->prd[pi - 1].flags_len |= cpu_to_le32(ATA_PRD_EOT);
}
/**
{
struct ata_port *ap = qc->ap;
struct scatterlist *sg;
- unsigned int idx;
-
- WARN_ON(qc->__sg == NULL);
- WARN_ON(qc->n_elem == 0 && qc->pad_len == 0);
+ unsigned int si, pi;
- idx = 0;
- ata_for_each_sg(sg, qc) {
+ pi = 0;
+ for_each_sg(qc->sg, sg, qc->n_elem, si) {
u32 addr, offset;
u32 sg_len, len, blen;
len = 0x10000 - offset;
blen = len & 0xffff;
- ap->prd[idx].addr = cpu_to_le32(addr);
+ ap->prd[pi].addr = cpu_to_le32(addr);
if (blen == 0) {
/* Some PATA chipsets like the CS5530 can't
cope with 0x0000 meaning 64K as the spec says */
- ap->prd[idx].flags_len = cpu_to_le32(0x8000);
+ ap->prd[pi].flags_len = cpu_to_le32(0x8000);
blen = 0x8000;
- ap->prd[++idx].addr = cpu_to_le32(addr + 0x8000);
+ ap->prd[++pi].addr = cpu_to_le32(addr + 0x8000);
}
- ap->prd[idx].flags_len = cpu_to_le32(blen);
- VPRINTK("PRD[%u] = (0x%X, 0x%X)\n", idx, addr, len);
+ ap->prd[pi].flags_len = cpu_to_le32(blen);
+ VPRINTK("PRD[%u] = (0x%X, 0x%X)\n", pi, addr, len);
- idx++;
+ pi++;
sg_len -= len;
addr += len;
}
}
- if (idx)
- ap->prd[idx - 1].flags_len |= cpu_to_le32(ATA_PRD_EOT);
+ ap->prd[pi - 1].flags_len |= cpu_to_le32(ATA_PRD_EOT);
}
/**
return 0;
}
-/**
- * atapi_qc_may_overflow - Check whether data transfer may overflow
- * @qc: ATA command in question
- *
- * ATAPI commands which transfer variable length data to host
- * might overflow due to application error or hardare bug. This
- * function checks whether overflow should be drained and ignored
- * for @qc.
- *
- * LOCKING:
- * None.
- *
- * RETURNS:
- * 1 if @qc may overflow; otherwise, 0.
- */
-static int atapi_qc_may_overflow(struct ata_queued_cmd *qc)
-{
- if (qc->tf.protocol != ATA_PROT_ATAPI &&
- qc->tf.protocol != ATA_PROT_ATAPI_DMA)
- return 0;
-
- if (qc->tf.flags & ATA_TFLAG_WRITE)
- return 0;
-
- switch (qc->cdb[0]) {
- case READ_10:
- case READ_12:
- case WRITE_10:
- case WRITE_12:
- case GPCMD_READ_CD:
- case GPCMD_READ_CD_MSF:
- return 0;
- }
-
- return 1;
-}
-
/**
* ata_std_qc_defer - Check whether a qc needs to be deferred
* @qc: ATA command in question
void ata_noop_qc_prep(struct ata_queued_cmd *qc) { }
-/**
- * ata_sg_init_one - Associate command with memory buffer
- * @qc: Command to be associated
- * @buf: Memory buffer
- * @buflen: Length of memory buffer, in bytes.
- *
- * Initialize the data-related elements of queued_cmd @qc
- * to point to a single memory buffer, @buf of byte length @buflen.
- *
- * LOCKING:
- * spin_lock_irqsave(host lock)
- */
-
-void ata_sg_init_one(struct ata_queued_cmd *qc, void *buf, unsigned int buflen)
-{
- qc->flags |= ATA_QCFLAG_SINGLE;
-
- qc->__sg = &qc->sgent;
- qc->n_elem = 1;
- qc->orig_n_elem = 1;
- qc->buf_virt = buf;
- qc->nbytes = buflen;
- qc->cursg = qc->__sg;
-
- sg_init_one(&qc->sgent, buf, buflen);
-}
-
/**
* ata_sg_init - Associate command with scatter-gather table.
* @qc: Command to be associated
* LOCKING:
* spin_lock_irqsave(host lock)
*/
-
void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg,
unsigned int n_elem)
{
- qc->flags |= ATA_QCFLAG_SG;
- qc->__sg = sg;
+ qc->sg = sg;
qc->n_elem = n_elem;
- qc->orig_n_elem = n_elem;
- qc->cursg = qc->__sg;
-}
-
-/**
- * ata_sg_setup_one - DMA-map the memory buffer associated with a command.
- * @qc: Command with memory buffer to be mapped.
- *
- * DMA-map the memory buffer associated with queued_cmd @qc.
- *
- * LOCKING:
- * spin_lock_irqsave(host lock)
- *
- * RETURNS:
- * Zero on success, negative on error.
- */
-
-static int ata_sg_setup_one(struct ata_queued_cmd *qc)
-{
- struct ata_port *ap = qc->ap;
- int dir = qc->dma_dir;
- struct scatterlist *sg = qc->__sg;
- dma_addr_t dma_address;
- int trim_sg = 0;
-
- /* we must lengthen transfers to end on a 32-bit boundary */
- qc->pad_len = sg->length & 3;
- if (qc->pad_len) {
- void *pad_buf = ap->pad + (qc->tag * ATA_DMA_PAD_SZ);
- struct scatterlist *psg = &qc->pad_sgent;
-
- WARN_ON(qc->dev->class != ATA_DEV_ATAPI);
-
- memset(pad_buf, 0, ATA_DMA_PAD_SZ);
-
- if (qc->tf.flags & ATA_TFLAG_WRITE)
- memcpy(pad_buf, qc->buf_virt + sg->length - qc->pad_len,
- qc->pad_len);
-
- sg_dma_address(psg) = ap->pad_dma + (qc->tag * ATA_DMA_PAD_SZ);
- sg_dma_len(psg) = ATA_DMA_PAD_SZ;
- /* trim sg */
- sg->length -= qc->pad_len;
- if (sg->length == 0)
- trim_sg = 1;
-
- DPRINTK("padding done, sg->length=%u pad_len=%u\n",
- sg->length, qc->pad_len);
- }
-
- if (trim_sg) {
- qc->n_elem--;
- goto skip_map;
- }
-
- dma_address = dma_map_single(ap->dev, qc->buf_virt,
- sg->length, dir);
- if (dma_mapping_error(dma_address)) {
- /* restore sg */
- sg->length += qc->pad_len;
- return -1;
- }
-
- sg_dma_address(sg) = dma_address;
- sg_dma_len(sg) = sg->length;
-
-skip_map:
- DPRINTK("mapped buffer of %d bytes for %s\n", sg_dma_len(sg),
- qc->tf.flags & ATA_TFLAG_WRITE ? "write" : "read");
-
- return 0;
+ qc->cursg = qc->sg;
}
/**
* Zero on success, negative on error.
*
*/
-
static int ata_sg_setup(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
- struct scatterlist *sg = qc->__sg;
- struct scatterlist *lsg = sg_last(qc->__sg, qc->n_elem);
- int n_elem, pre_n_elem, dir, trim_sg = 0;
+ unsigned int n_elem;
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 */
- qc->pad_len = lsg->length & 3;
- if (qc->pad_len) {
- void *pad_buf = ap->pad + (qc->tag * ATA_DMA_PAD_SZ);
- struct scatterlist *psg = &qc->pad_sgent;
- unsigned int offset;
-
- WARN_ON(qc->dev->class != ATA_DEV_ATAPI);
-
- memset(pad_buf, 0, ATA_DMA_PAD_SZ);
-
- /*
- * psg->page/offset are used to copy to-be-written
- * data in this function or read data in ata_sg_clean.
- */
- offset = lsg->offset + lsg->length - qc->pad_len;
- sg_init_table(psg, 1);
- sg_set_page(psg, nth_page(sg_page(lsg), offset >> PAGE_SHIFT),
- qc->pad_len, offset_in_page(offset));
-
- if (qc->tf.flags & ATA_TFLAG_WRITE) {
- void *addr = kmap_atomic(sg_page(psg), KM_IRQ0);
- memcpy(pad_buf, addr + psg->offset, qc->pad_len);
- kunmap_atomic(addr, KM_IRQ0);
- }
-
- sg_dma_address(psg) = ap->pad_dma + (qc->tag * ATA_DMA_PAD_SZ);
- sg_dma_len(psg) = ATA_DMA_PAD_SZ;
- /* trim last sg */
- lsg->length -= qc->pad_len;
- if (lsg->length == 0)
- trim_sg = 1;
-
- DPRINTK("padding done, sg[%d].length=%u pad_len=%u\n",
- qc->n_elem - 1, lsg->length, qc->pad_len);
- }
-
- pre_n_elem = qc->n_elem;
- if (trim_sg && pre_n_elem)
- pre_n_elem--;
- if (!pre_n_elem) {
- n_elem = 0;
- goto skip_map;
- }
-
- dir = qc->dma_dir;
- n_elem = dma_map_sg(ap->dev, sg, pre_n_elem, dir);
- if (n_elem < 1) {
- /* restore last sg */
- lsg->length += qc->pad_len;
+ n_elem = dma_map_sg(ap->dev, qc->sg, qc->n_elem, qc->dma_dir);
+ if (n_elem < 1)
return -1;
- }
DPRINTK("%d sg elements mapped\n", n_elem);
-skip_map:
qc->n_elem = n_elem;
+ qc->flags |= ATA_QCFLAG_DMAMAP;
return 0;
}
/**
* ata_data_xfer - Transfer data by PIO
- * @adev: device to target
+ * @dev: device to target
* @buf: data buffer
* @buflen: buffer length
- * @write_data: read/write
+ * @rw: read/write
*
* Transfer data from/to the device data register by PIO.
*
* LOCKING:
* Inherited from caller.
+ *
+ * RETURNS:
+ * Bytes consumed.
*/
-void ata_data_xfer(struct ata_device *adev, unsigned char *buf,
- unsigned int buflen, int write_data)
+unsigned int ata_data_xfer(struct ata_device *dev, unsigned char *buf,
+ unsigned int buflen, int rw)
{
- struct ata_port *ap = adev->link->ap;
+ struct ata_port *ap = dev->link->ap;
+ void __iomem *data_addr = ap->ioaddr.data_addr;
unsigned int words = buflen >> 1;
/* Transfer multiple of 2 bytes */
- if (write_data)
- iowrite16_rep(ap->ioaddr.data_addr, buf, words);
+ if (rw == READ)
+ ioread16_rep(data_addr, buf, words);
else
- ioread16_rep(ap->ioaddr.data_addr, buf, words);
+ iowrite16_rep(data_addr, buf, words);
/* Transfer trailing 1 byte, if any. */
if (unlikely(buflen & 0x01)) {
- u16 align_buf[1] = { 0 };
+ __le16 align_buf[1] = { 0 };
unsigned char *trailing_buf = buf + buflen - 1;
- if (write_data) {
- memcpy(align_buf, trailing_buf, 1);
- iowrite16(le16_to_cpu(align_buf[0]), ap->ioaddr.data_addr);
- } else {
- align_buf[0] = cpu_to_le16(ioread16(ap->ioaddr.data_addr));
+ if (rw == READ) {
+ align_buf[0] = cpu_to_le16(ioread16(data_addr));
memcpy(trailing_buf, align_buf, 1);
+ } else {
+ memcpy(align_buf, trailing_buf, 1);
+ iowrite16(le16_to_cpu(align_buf[0]), data_addr);
}
+ words++;
}
+
+ return words << 1;
}
/**
* ata_data_xfer_noirq - Transfer data by PIO
- * @adev: device to target
+ * @dev: device to target
* @buf: data buffer
* @buflen: buffer length
- * @write_data: read/write
+ * @rw: read/write
*
* Transfer data from/to the device data register by PIO. Do the
* transfer with interrupts disabled.
*
* LOCKING:
* Inherited from caller.
+ *
+ * RETURNS:
+ * Bytes consumed.
*/
-void ata_data_xfer_noirq(struct ata_device *adev, unsigned char *buf,
- unsigned int buflen, int write_data)
+unsigned int ata_data_xfer_noirq(struct ata_device *dev, unsigned char *buf,
+ unsigned int buflen, int rw)
{
unsigned long flags;
+ unsigned int consumed;
+
local_irq_save(flags);
- ata_data_xfer(adev, buf, buflen, write_data);
+ consumed = ata_data_xfer(dev, buf, buflen, rw);
local_irq_restore(flags);
+
+ return consumed;
}
ata_altstatus(ap); /* flush */
switch (qc->tf.protocol) {
- case ATA_PROT_ATAPI:
+ case ATAPI_PROT_PIO:
ap->hsm_task_state = HSM_ST;
break;
- case ATA_PROT_ATAPI_NODATA:
+ case ATAPI_PROT_NODATA:
ap->hsm_task_state = HSM_ST_LAST;
break;
- case ATA_PROT_ATAPI_DMA:
+ case ATAPI_PROT_DMA:
ap->hsm_task_state = HSM_ST_LAST;
/* initiate bmdma */
ap->ops->bmdma_start(qc);
*/
static int __atapi_pio_bytes(struct ata_queued_cmd *qc, unsigned int bytes)
{
- int do_write = (qc->tf.flags & ATA_TFLAG_WRITE);
+ int rw = (qc->tf.flags & ATA_TFLAG_WRITE) ? WRITE : READ;
struct ata_port *ap = qc->ap;
- struct ata_eh_info *ehi = &qc->dev->link->eh_info;
+ struct ata_device *dev = qc->dev;
+ struct ata_eh_info *ehi = &dev->link->eh_info;
struct scatterlist *sg;
struct page *page;
unsigned char *buf;
- unsigned int offset, count;
+ unsigned int offset, count, consumed;
next_sg:
sg = qc->cursg;
if (unlikely(!sg)) {
- /*
- * The end of qc->sg is reached and the device expects
- * more data to transfer. In order not to overrun qc->sg
- * and fulfill length specified in the byte count register,
- * - for read case, discard trailing data from the device
- * - for write case, padding zero data to the device
- */
- u16 pad_buf[1] = { 0 };
- unsigned int i;
-
- if (bytes > qc->curbytes - qc->nbytes + ATAPI_MAX_DRAIN) {
- ata_ehi_push_desc(ehi, "too much trailing data "
- "buf=%u cur=%u bytes=%u",
- qc->nbytes, qc->curbytes, bytes);
- return -1;
- }
-
- /* overflow is exptected for misc ATAPI commands */
- if (bytes && !atapi_qc_may_overflow(qc))
- ata_dev_printk(qc->dev, KERN_WARNING, "ATAPI %u bytes "
- "trailing data (cdb=%02x nbytes=%u)\n",
- bytes, qc->cdb[0], qc->nbytes);
-
- for (i = 0; i < (bytes + 1) / 2; i++)
- ap->ops->data_xfer(qc->dev, (unsigned char *)pad_buf, 2, do_write);
-
- qc->curbytes += bytes;
-
- return 0;
+ ata_ehi_push_desc(ehi, "unexpected or too much trailing data "
+ "buf=%u cur=%u bytes=%u",
+ qc->nbytes, qc->curbytes, bytes);
+ return -1;
}
page = sg_page(sg);
buf = kmap_atomic(page, KM_IRQ0);
/* do the actual data transfer */
- ap->ops->data_xfer(qc->dev, buf + offset, count, do_write);
+ consumed = ap->ops->data_xfer(dev, buf + offset, count, rw);
kunmap_atomic(buf, KM_IRQ0);
local_irq_restore(flags);
} else {
buf = page_address(page);
- ap->ops->data_xfer(qc->dev, buf + offset, count, do_write);
+ consumed = ap->ops->data_xfer(dev, buf + offset, count, rw);
}
- bytes -= count;
- if ((count & 1) && bytes)
- bytes--;
+ bytes -= min(bytes, consumed);
qc->curbytes += count;
qc->cursg_ofs += count;
qc->cursg_ofs = 0;
}
+ /* consumed can be larger than count only for the last transfer */
+ WARN_ON(qc->cursg && count != consumed);
+
if (bytes)
goto next_sg;
-
return 0;
}
{
struct ata_port *ap = qc->ap;
struct ata_device *dev = qc->dev;
+ struct ata_eh_info *ehi = &dev->link->eh_info;
unsigned int ireason, bc_lo, bc_hi, bytes;
int i_write, do_write = (qc->tf.flags & ATA_TFLAG_WRITE) ? 1 : 0;
bytes = (bc_hi << 8) | bc_lo;
/* shall be cleared to zero, indicating xfer of data */
- if (ireason & (1 << 0))
- goto err_out;
+ if (unlikely(ireason & (1 << 0)))
+ goto atapi_check;
/* make sure transfer direction matches expected */
i_write = ((ireason & (1 << 1)) == 0) ? 1 : 0;
- if (do_write != i_write)
- goto err_out;
+ if (unlikely(do_write != i_write))
+ goto atapi_check;
+
+ if (unlikely(!bytes))
+ goto atapi_check;
VPRINTK("ata%u: xfering %d bytes\n", ap->print_id, bytes);
- if (__atapi_pio_bytes(qc, bytes))
+ if (unlikely(__atapi_pio_bytes(qc, bytes)))
goto err_out;
ata_altstatus(ap); /* flush */
return;
-err_out:
- ata_dev_printk(dev, KERN_INFO, "ATAPI check failed\n");
+ atapi_check:
+ ata_ehi_push_desc(ehi, "ATAPI check failed (ireason=0x%x bytes=%u)",
+ ireason, bytes);
+ err_out:
qc->err_mask |= AC_ERR_HSM;
ap->hsm_task_state = HSM_ST_ERR;
}
(qc->tf.flags & ATA_TFLAG_WRITE))
return 1;
- if (is_atapi_taskfile(&qc->tf) &&
+ if (ata_is_atapi(qc->tf.protocol) &&
!(qc->dev->flags & ATA_DFLAG_CDB_INTR))
return 1;
}
case HSM_ST:
/* complete command or read/write the data register */
- if (qc->tf.protocol == ATA_PROT_ATAPI) {
+ if (qc->tf.protocol == ATAPI_PROT_PIO) {
/* ATAPI PIO protocol */
if ((status & ATA_DRQ) == 0) {
/* No more data to transfer or device error.
msleep(2);
status = ata_busy_wait(ap, ATA_BUSY, 10);
if (status & ATA_BUSY) {
- ata_port_queue_task(ap, ata_pio_task, qc, ATA_SHORT_PAUSE);
+ ata_pio_queue_task(ap, qc, ATA_SHORT_PAUSE);
return;
}
}
ap->ops->tf_read(ap, &qc->result_tf);
}
+static void ata_verify_xfer(struct ata_queued_cmd *qc)
+{
+ struct ata_device *dev = qc->dev;
+
+ if (ata_tag_internal(qc->tag))
+ return;
+
+ if (ata_is_nodata(qc->tf.protocol))
+ return;
+
+ if ((dev->mwdma_mask || dev->udma_mask) && ata_is_pio(qc->tf.protocol))
+ return;
+
+ dev->flags &= ~ATA_DFLAG_DUBIOUS_XFER;
+}
+
/**
* ata_qc_complete - Complete an active ATA command
* @qc: Command to complete
break;
}
+ if (unlikely(dev->flags & ATA_DFLAG_DUBIOUS_XFER))
+ ata_verify_xfer(qc);
+
__ata_qc_complete(qc);
} else {
if (qc->flags & ATA_QCFLAG_EH_SCHEDULED)
return nr_done;
}
-static inline int ata_should_dma_map(struct ata_queued_cmd *qc)
-{
- struct ata_port *ap = qc->ap;
-
- switch (qc->tf.protocol) {
- case ATA_PROT_NCQ:
- case ATA_PROT_DMA:
- case ATA_PROT_ATAPI_DMA:
- return 1;
-
- case ATA_PROT_ATAPI:
- case ATA_PROT_PIO:
- if (ap->flags & ATA_FLAG_PIO_DMA)
- return 1;
-
- /* fall through */
-
- default:
- return 0;
- }
-
- /* never reached */
-}
-
/**
* ata_qc_issue - issue taskfile to device
* @qc: command to issue to device
{
struct ata_port *ap = qc->ap;
struct ata_link *link = qc->dev->link;
+ u8 prot = qc->tf.protocol;
/* Make sure only one non-NCQ command is outstanding. The
* check is skipped for old EH because it reuses active qc to
*/
WARN_ON(ap->ops->error_handler && ata_tag_valid(link->active_tag));
- if (qc->tf.protocol == ATA_PROT_NCQ) {
+ if (ata_is_ncq(prot)) {
WARN_ON(link->sactive & (1 << qc->tag));
if (!link->sactive)
qc->flags |= ATA_QCFLAG_ACTIVE;
ap->qc_active |= 1 << qc->tag;
- if (ata_should_dma_map(qc)) {
- if (qc->flags & ATA_QCFLAG_SG) {
- if (ata_sg_setup(qc))
- goto sg_err;
- } else if (qc->flags & ATA_QCFLAG_SINGLE) {
- if (ata_sg_setup_one(qc))
- goto sg_err;
- }
- } else {
- qc->flags &= ~ATA_QCFLAG_DMAMAP;
- }
+ /* We guarantee to LLDs that they will have at least one
+ * non-zero sg if the command is a data command.
+ */
+ BUG_ON(ata_is_data(prot) && (!qc->sg || !qc->n_elem || !qc->nbytes));
+
+ if (ata_is_dma(prot) || (ata_is_pio(prot) &&
+ (ap->flags & ATA_FLAG_PIO_DMA)))
+ if (ata_sg_setup(qc))
+ goto sg_err;
/* if device is sleeping, schedule softreset and abort the link */
if (unlikely(qc->dev->flags & ATA_DFLAG_SLEEPING)) {
return;
sg_err:
- qc->flags &= ~ATA_QCFLAG_DMAMAP;
qc->err_mask |= AC_ERR_SYSTEM;
err:
ata_qc_complete(qc);
switch (qc->tf.protocol) {
case ATA_PROT_PIO:
case ATA_PROT_NODATA:
- case ATA_PROT_ATAPI:
- case ATA_PROT_ATAPI_NODATA:
+ case ATAPI_PROT_PIO:
+ case ATAPI_PROT_NODATA:
qc->tf.flags |= ATA_TFLAG_POLLING;
break;
- case ATA_PROT_ATAPI_DMA:
+ case ATAPI_PROT_DMA:
if (qc->dev->flags & ATA_DFLAG_CDB_INTR)
/* see ata_dma_blacklisted() */
BUG();
ap->hsm_task_state = HSM_ST_LAST;
if (qc->tf.flags & ATA_TFLAG_POLLING)
- ata_port_queue_task(ap, ata_pio_task, qc, 0);
+ ata_pio_queue_task(ap, qc, 0);
break;
if (qc->tf.flags & ATA_TFLAG_WRITE) {
/* PIO data out protocol */
ap->hsm_task_state = HSM_ST_FIRST;
- ata_port_queue_task(ap, ata_pio_task, qc, 0);
+ ata_pio_queue_task(ap, qc, 0);
/* always send first data block using
* the ata_pio_task() codepath.
ap->hsm_task_state = HSM_ST;
if (qc->tf.flags & ATA_TFLAG_POLLING)
- ata_port_queue_task(ap, ata_pio_task, qc, 0);
+ ata_pio_queue_task(ap, qc, 0);
/* if polling, ata_pio_task() handles the rest.
* otherwise, interrupt handler takes over from here.
break;
- case ATA_PROT_ATAPI:
- case ATA_PROT_ATAPI_NODATA:
+ case ATAPI_PROT_PIO:
+ case ATAPI_PROT_NODATA:
if (qc->tf.flags & ATA_TFLAG_POLLING)
ata_qc_set_polling(qc);
/* send cdb by polling if no cdb interrupt */
if ((!(qc->dev->flags & ATA_DFLAG_CDB_INTR)) ||
(qc->tf.flags & ATA_TFLAG_POLLING))
- ata_port_queue_task(ap, ata_pio_task, qc, 0);
+ ata_pio_queue_task(ap, qc, 0);
break;
- case ATA_PROT_ATAPI_DMA:
+ case ATAPI_PROT_DMA:
WARN_ON(qc->tf.flags & ATA_TFLAG_POLLING);
ap->ops->tf_load(ap, &qc->tf); /* load tf registers */
/* send cdb by polling if no cdb interrupt */
if (!(qc->dev->flags & ATA_DFLAG_CDB_INTR))
- ata_port_queue_task(ap, ata_pio_task, qc, 0);
+ ata_pio_queue_task(ap, qc, 0);
break;
default:
*/
/* Check the ATA_DFLAG_CDB_INTR flag is enough here.
- * The flag was turned on only for atapi devices.
- * No need to check is_atapi_taskfile(&qc->tf) again.
+ * The flag was turned on only for atapi devices. No
+ * need to check ata_is_atapi(qc->tf.protocol) again.
*/
if (!(qc->dev->flags & ATA_DFLAG_CDB_INTR))
goto idle_irq;
break;
case HSM_ST_LAST:
if (qc->tf.protocol == ATA_PROT_DMA ||
- qc->tf.protocol == ATA_PROT_ATAPI_DMA) {
+ qc->tf.protocol == ATAPI_PROT_DMA) {
/* check status of DMA engine */
host_stat = ap->ops->bmdma_status(ap);
VPRINTK("ata%u: host_stat 0x%X\n",
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))
+ qc->tf.protocol == ATAPI_PROT_DMA))
ata_ehi_push_desc(ehi, "BMDMA stat 0x%x", host_stat);
return 1; /* irq handled */
int ata_port_start(struct ata_port *ap)
{
struct device *dev = ap->dev;
- int rc;
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)
- return rc;
-
- DPRINTK("prd alloc, virt %p, dma %llx\n", ap->prd,
- (unsigned long long)ap->prd_dma);
return 0;
}
*/
int sata_link_init_spd(struct ata_link *link)
{
- u32 scontrol, spd;
+ u32 scontrol;
+ u8 spd;
int rc;
rc = sata_scr_read(link, SCR_CONTROL, &scontrol);
if (spd)
link->hw_sata_spd_limit &= (1 << spd) - 1;
+ ata_force_spd_limit(link);
+
link->sata_spd_limit = link->hw_sata_spd_limit;
return 0;
ap->msg_enable = ATA_MSG_DRV | ATA_MSG_ERR | ATA_MSG_WARN;
#endif
- INIT_DELAYED_WORK(&ap->port_task, NULL);
+ INIT_DELAYED_WORK(&ap->port_task, ata_pio_task);
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);
DPRINTK("probe begin\n");
for (i = 0; i < host->n_ports; i++) {
struct ata_port *ap = host->ports[i];
- int rc;
/* probe */
if (ap->ops->error_handler) {
pci_save_state(pdev);
pci_disable_device(pdev);
- if (mesg.event == PM_EVENT_SUSPEND)
+ if (mesg.event & PM_EVENT_SLEEP)
pci_set_power_state(pdev, PCI_D3hot);
}
#endif /* CONFIG_PCI */
+static int __init ata_parse_force_one(char **cur,
+ struct ata_force_ent *force_ent,
+ const char **reason)
+{
+ /* FIXME: Currently, there's no way to tag init const data and
+ * using __initdata causes build failure on some versions of
+ * gcc. Once __initdataconst is implemented, add const to the
+ * following structure.
+ */
+ static struct ata_force_param force_tbl[] __initdata = {
+ { "40c", .cbl = ATA_CBL_PATA40 },
+ { "80c", .cbl = ATA_CBL_PATA80 },
+ { "short40c", .cbl = ATA_CBL_PATA40_SHORT },
+ { "unk", .cbl = ATA_CBL_PATA_UNK },
+ { "ign", .cbl = ATA_CBL_PATA_IGN },
+ { "sata", .cbl = ATA_CBL_SATA },
+ { "1.5Gbps", .spd_limit = 1 },
+ { "3.0Gbps", .spd_limit = 2 },
+ { "noncq", .horkage_on = ATA_HORKAGE_NONCQ },
+ { "ncq", .horkage_off = ATA_HORKAGE_NONCQ },
+ { "pio0", .xfer_mask = 1 << (ATA_SHIFT_PIO + 0) },
+ { "pio1", .xfer_mask = 1 << (ATA_SHIFT_PIO + 1) },
+ { "pio2", .xfer_mask = 1 << (ATA_SHIFT_PIO + 2) },
+ { "pio3", .xfer_mask = 1 << (ATA_SHIFT_PIO + 3) },
+ { "pio4", .xfer_mask = 1 << (ATA_SHIFT_PIO + 4) },
+ { "pio5", .xfer_mask = 1 << (ATA_SHIFT_PIO + 5) },
+ { "pio6", .xfer_mask = 1 << (ATA_SHIFT_PIO + 6) },
+ { "mwdma0", .xfer_mask = 1 << (ATA_SHIFT_MWDMA + 0) },
+ { "mwdma1", .xfer_mask = 1 << (ATA_SHIFT_MWDMA + 1) },
+ { "mwdma2", .xfer_mask = 1 << (ATA_SHIFT_MWDMA + 2) },
+ { "mwdma3", .xfer_mask = 1 << (ATA_SHIFT_MWDMA + 3) },
+ { "mwdma4", .xfer_mask = 1 << (ATA_SHIFT_MWDMA + 4) },
+ { "udma0", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 0) },
+ { "udma16", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 0) },
+ { "udma/16", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 0) },
+ { "udma1", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 1) },
+ { "udma25", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 1) },
+ { "udma/25", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 1) },
+ { "udma2", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 2) },
+ { "udma33", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 2) },
+ { "udma/33", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 2) },
+ { "udma3", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 3) },
+ { "udma44", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 3) },
+ { "udma/44", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 3) },
+ { "udma4", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 4) },
+ { "udma66", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 4) },
+ { "udma/66", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 4) },
+ { "udma5", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 5) },
+ { "udma100", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 5) },
+ { "udma/100", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 5) },
+ { "udma6", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 6) },
+ { "udma133", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 6) },
+ { "udma/133", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 6) },
+ { "udma7", .xfer_mask = 1 << (ATA_SHIFT_UDMA + 7) },
+ };
+ char *start = *cur, *p = *cur;
+ char *id, *val, *endp;
+ const struct ata_force_param *match_fp = NULL;
+ int nr_matches = 0, i;
+
+ /* find where this param ends and update *cur */
+ while (*p != '\0' && *p != ',')
+ p++;
+
+ if (*p == '\0')
+ *cur = p;
+ else
+ *cur = p + 1;
+
+ *p = '\0';
+
+ /* parse */
+ p = strchr(start, ':');
+ if (!p) {
+ val = strstrip(start);
+ goto parse_val;
+ }
+ *p = '\0';
+
+ id = strstrip(start);
+ val = strstrip(p + 1);
+
+ /* parse id */
+ p = strchr(id, '.');
+ if (p) {
+ *p++ = '\0';
+ force_ent->device = simple_strtoul(p, &endp, 10);
+ if (p == endp || *endp != '\0') {
+ *reason = "invalid device";
+ return -EINVAL;
+ }
+ }
+
+ force_ent->port = simple_strtoul(id, &endp, 10);
+ if (p == endp || *endp != '\0') {
+ *reason = "invalid port/link";
+ return -EINVAL;
+ }
+
+ parse_val:
+ /* parse val, allow shortcuts so that both 1.5 and 1.5Gbps work */
+ for (i = 0; i < ARRAY_SIZE(force_tbl); i++) {
+ const struct ata_force_param *fp = &force_tbl[i];
+
+ if (strncasecmp(val, fp->name, strlen(val)))
+ continue;
+
+ nr_matches++;
+ match_fp = fp;
+
+ if (strcasecmp(val, fp->name) == 0) {
+ nr_matches = 1;
+ break;
+ }
+ }
+
+ if (!nr_matches) {
+ *reason = "unknown value";
+ return -EINVAL;
+ }
+ if (nr_matches > 1) {
+ *reason = "ambigious value";
+ return -EINVAL;
+ }
+
+ force_ent->param = *match_fp;
+
+ return 0;
+}
+
+static void __init ata_parse_force_param(void)
+{
+ int idx = 0, size = 1;
+ int last_port = -1, last_device = -1;
+ char *p, *cur, *next;
+
+ /* calculate maximum number of params and allocate force_tbl */
+ for (p = ata_force_param_buf; *p; p++)
+ if (*p == ',')
+ size++;
+
+ ata_force_tbl = kzalloc(sizeof(ata_force_tbl[0]) * size, GFP_KERNEL);
+ if (!ata_force_tbl) {
+ printk(KERN_WARNING "ata: failed to extend force table, "
+ "libata.force ignored\n");
+ return;
+ }
+
+ /* parse and populate the table */
+ for (cur = ata_force_param_buf; *cur != '\0'; cur = next) {
+ const char *reason = "";
+ struct ata_force_ent te = { .port = -1, .device = -1 };
+
+ next = cur;
+ if (ata_parse_force_one(&next, &te, &reason)) {
+ printk(KERN_WARNING "ata: failed to parse force "
+ "parameter \"%s\" (%s)\n",
+ cur, reason);
+ continue;
+ }
+
+ if (te.port == -1) {
+ te.port = last_port;
+ te.device = last_device;
+ }
+
+ ata_force_tbl[idx++] = te;
+
+ last_port = te.port;
+ last_device = te.device;
+ }
+
+ ata_force_tbl_size = idx;
+}
static int __init ata_init(void)
{
ata_probe_timeout *= HZ;
+
+ ata_parse_force_param();
+
ata_wq = create_workqueue("ata");
if (!ata_wq)
return -ENOMEM;
static void __exit ata_exit(void)
{
+ kfree(ata_force_tbl);
destroy_workqueue(ata_wq);
destroy_workqueue(ata_aux_wq);
}
EXPORT_SYMBOL_GPL(ata_host_activate);
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_qc_complete);
EXPORT_SYMBOL_GPL(ata_qc_complete_multiple);
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_pack_xfermask);
+EXPORT_SYMBOL_GPL(ata_unpack_xfermask);
+EXPORT_SYMBOL_GPL(ata_xfer_mask2mode);
+EXPORT_SYMBOL_GPL(ata_xfer_mode2mask);
+EXPORT_SYMBOL_GPL(ata_xfer_mode2shift);
+EXPORT_SYMBOL_GPL(ata_mode_string);
+EXPORT_SYMBOL_GPL(ata_id_xfermask);
EXPORT_SYMBOL_GPL(ata_check_status);
EXPORT_SYMBOL_GPL(ata_altstatus);
EXPORT_SYMBOL_GPL(ata_exec_command);
EXPORT_SYMBOL_GPL(ata_busy_sleep);
EXPORT_SYMBOL_GPL(ata_wait_after_reset);
EXPORT_SYMBOL_GPL(ata_wait_ready);
-EXPORT_SYMBOL_GPL(ata_port_queue_task);
EXPORT_SYMBOL_GPL(ata_scsi_ioctl);
EXPORT_SYMBOL_GPL(ata_scsi_queuecmd);
EXPORT_SYMBOL_GPL(ata_scsi_slave_config);
#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_scsi_simulate);
EXPORT_SYMBOL_GPL(ata_pio_need_iordy);
+EXPORT_SYMBOL_GPL(ata_timing_find_mode);
EXPORT_SYMBOL_GPL(ata_timing_compute);
EXPORT_SYMBOL_GPL(ata_timing_merge);
+EXPORT_SYMBOL_GPL(ata_timing_cycle2mode);
#ifdef CONFIG_PCI
EXPORT_SYMBOL_GPL(pci_test_config_bits);
EXPORT_SYMBOL_GPL(ata_pci_init_sff_host);
EXPORT_SYMBOL_GPL(ata_pci_init_bmdma);
EXPORT_SYMBOL_GPL(ata_pci_prepare_sff_host);
+EXPORT_SYMBOL_GPL(ata_pci_activate_sff_host);
EXPORT_SYMBOL_GPL(ata_pci_init_one);
EXPORT_SYMBOL_GPL(ata_pci_remove_one);
#ifdef CONFIG_PM
EXPORT_SYMBOL_GPL(ata_cable_40wire);
EXPORT_SYMBOL_GPL(ata_cable_80wire);
EXPORT_SYMBOL_GPL(ata_cable_unknown);
+EXPORT_SYMBOL_GPL(ata_cable_ignore);
EXPORT_SYMBOL_GPL(ata_cable_sata);
projects / linux-2.6-omap-h63xx.git / blobdiff