[git patches] libata bug fixes
From: Jeff Garzik
Date: Sun Apr 24 2011 - 11:58:05 EST
1) Several minor AHCI fixes
2) pata_at91 fixes
3) ahci, ata_piix PCI IDs
4) CD-ROM quirk
5) Export some necessary Enclosure Management (EM) details from AHCI
Please pull from 'upstream-linus' branch of
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git upstream-linus
to receive the following updates:
drivers/ata/ahci.c | 8 +++++-
drivers/ata/ahci.h | 4 +++
drivers/ata/ata_piix.c | 8 ++++++
drivers/ata/libahci.c | 60 +++++++++++++++++++++++++++++++++++++++++++-
drivers/ata/libata-core.c | 3 +-
drivers/ata/libata-eh.c | 6 +++-
drivers/ata/pata_at91.c | 22 ++++++++++++++--
include/linux/libata.h | 3 +-
8 files changed, 103 insertions(+), 11 deletions(-)
Hannes Reinecke (1):
ahci: EM supported message type sysfs attribute
Igor Plyatov (2):
ata: pata_at91.c bugfix for high master clock
ata: pata_at91.c bugfix for initial_timing initialisation
Jeff Mahoney (1):
libata: Pioneer DVR-216D can't do SETXFER
Jian Peng (1):
libata: ahci_start_engine compliant to AHCI spec
Maxime Bizon (1):
ahci: don't enable port irq before handler is registered
Seth Heasley (2):
ata_piix: IDE-mode SATA patch for Intel Panther Point DeviceIDs
ahci: AHCI-mode SATA patch for Intel Panther Point DeviceIDs
Tejun Heo (2):
libata: Kill unused ATA_DFLAG_{H|D}IPM flags
libata: Implement ATA_FLAG_NO_DIPM and apply it to mcp65
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 39d829c..71afe03 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -150,7 +150,7 @@ static const struct ata_port_info ahci_port_info[] = {
{
AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
AHCI_HFLAG_YES_NCQ),
- .flags = AHCI_FLAG_COMMON,
+ .flags = AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
.pio_mask = ATA_PIO4,
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
@@ -261,6 +261,12 @@ static const struct pci_device_id ahci_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* PBG RAID */
{ PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */
+ { PCI_VDEVICE(INTEL, 0x1e02), board_ahci }, /* Panther Point AHCI */
+ { PCI_VDEVICE(INTEL, 0x1e03), board_ahci }, /* Panther Point AHCI */
+ { PCI_VDEVICE(INTEL, 0x1e04), board_ahci }, /* Panther Point RAID */
+ { PCI_VDEVICE(INTEL, 0x1e05), board_ahci }, /* Panther Point RAID */
+ { PCI_VDEVICE(INTEL, 0x1e06), board_ahci }, /* Panther Point RAID */
+ { PCI_VDEVICE(INTEL, 0x1e07), board_ahci }, /* Panther Point RAID */
/* JMicron 360/1/3/5/6, match class to avoid IDE function */
{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index 3986500..12c5282 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -229,6 +229,10 @@ enum {
EM_CTL_ALHD = (1 << 26), /* Activity LED */
EM_CTL_XMT = (1 << 25), /* Transmit Only */
EM_CTL_SMB = (1 << 24), /* Single Message Buffer */
+ EM_CTL_SGPIO = (1 << 19), /* SGPIO messages supported */
+ EM_CTL_SES = (1 << 18), /* SES-2 messages supported */
+ EM_CTL_SAFTE = (1 << 17), /* SAF-TE messages supported */
+ EM_CTL_LED = (1 << 16), /* LED messages supported */
/* em message type */
EM_MSG_TYPE_LED = (1 << 0), /* LED */
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 0bc3fd6..6f6e771 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -309,6 +309,14 @@ static const struct pci_device_id piix_pci_tbl[] = {
{ 0x8086, 0x1d00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata },
/* SATA Controller IDE (PBG) */
{ 0x8086, 0x1d08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+ /* SATA Controller IDE (Panther Point) */
+ { 0x8086, 0x1e00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata },
+ /* SATA Controller IDE (Panther Point) */
+ { 0x8086, 0x1e01, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata },
+ /* SATA Controller IDE (Panther Point) */
+ { 0x8086, 0x1e08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+ /* SATA Controller IDE (Panther Point) */
+ { 0x8086, 0x1e09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
{ } /* terminate list */
};
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 26d4523..ff9d832 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -109,6 +109,8 @@ static ssize_t ahci_read_em_buffer(struct device *dev,
static ssize_t ahci_store_em_buffer(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size);
+static ssize_t ahci_show_em_supported(struct device *dev,
+ struct device_attribute *attr, char *buf);
static DEVICE_ATTR(ahci_host_caps, S_IRUGO, ahci_show_host_caps, NULL);
static DEVICE_ATTR(ahci_host_cap2, S_IRUGO, ahci_show_host_cap2, NULL);
@@ -116,6 +118,7 @@ static DEVICE_ATTR(ahci_host_version, S_IRUGO, ahci_show_host_version, NULL);
static DEVICE_ATTR(ahci_port_cmd, S_IRUGO, ahci_show_port_cmd, NULL);
static DEVICE_ATTR(em_buffer, S_IWUSR | S_IRUGO,
ahci_read_em_buffer, ahci_store_em_buffer);
+static DEVICE_ATTR(em_message_supported, S_IRUGO, ahci_show_em_supported, NULL);
struct device_attribute *ahci_shost_attrs[] = {
&dev_attr_link_power_management_policy,
@@ -126,6 +129,7 @@ struct device_attribute *ahci_shost_attrs[] = {
&dev_attr_ahci_host_version,
&dev_attr_ahci_port_cmd,
&dev_attr_em_buffer,
+ &dev_attr_em_message_supported,
NULL
};
EXPORT_SYMBOL_GPL(ahci_shost_attrs);
@@ -343,6 +347,24 @@ static ssize_t ahci_store_em_buffer(struct device *dev,
return size;
}
+static ssize_t ahci_show_em_supported(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct ata_port *ap = ata_shost_to_port(shost);
+ struct ahci_host_priv *hpriv = ap->host->private_data;
+ void __iomem *mmio = hpriv->mmio;
+ u32 em_ctl;
+
+ em_ctl = readl(mmio + HOST_EM_CTL);
+
+ return sprintf(buf, "%s%s%s%s\n",
+ em_ctl & EM_CTL_LED ? "led " : "",
+ em_ctl & EM_CTL_SAFTE ? "saf-te " : "",
+ em_ctl & EM_CTL_SES ? "ses-2 " : "",
+ em_ctl & EM_CTL_SGPIO ? "sgpio " : "");
+}
+
/**
* ahci_save_initial_config - Save and fixup initial config values
* @dev: target AHCI device
@@ -539,6 +561,27 @@ void ahci_start_engine(struct ata_port *ap)
{
void __iomem *port_mmio = ahci_port_base(ap);
u32 tmp;
+ u8 status;
+
+ status = readl(port_mmio + PORT_TFDATA) & 0xFF;
+
+ /*
+ * At end of section 10.1 of AHCI spec (rev 1.3), it states
+ * Software shall not set PxCMD.ST to 1 until it is determined
+ * that a functoinal device is present on the port as determined by
+ * PxTFD.STS.BSY=0, PxTFD.STS.DRQ=0 and PxSSTS.DET=3h
+ *
+ * Even though most AHCI host controllers work without this check,
+ * specific controller will fail under this condition
+ */
+ if (status & (ATA_BUSY | ATA_DRQ))
+ return;
+ else {
+ ahci_scr_read(&ap->link, SCR_STATUS, &tmp);
+
+ if ((tmp & 0xf) != 0x3)
+ return;
+ }
/* start DMA */
tmp = readl(port_mmio + PORT_CMD);
@@ -1897,7 +1940,17 @@ static void ahci_pmp_attach(struct ata_port *ap)
ahci_enable_fbs(ap);
pp->intr_mask |= PORT_IRQ_BAD_PMP;
- writel(pp->intr_mask, port_mmio + PORT_IRQ_MASK);
+
+ /*
+ * We must not change the port interrupt mask register if the
+ * port is marked frozen, the value in pp->intr_mask will be
+ * restored later when the port is thawed.
+ *
+ * Note that during initialization, the port is marked as
+ * frozen since the irq handler is not yet registered.
+ */
+ if (!(ap->pflags & ATA_PFLAG_FROZEN))
+ writel(pp->intr_mask, port_mmio + PORT_IRQ_MASK);
}
static void ahci_pmp_detach(struct ata_port *ap)
@@ -1913,7 +1966,10 @@ static void ahci_pmp_detach(struct ata_port *ap)
writel(cmd, port_mmio + PORT_CMD);
pp->intr_mask &= ~PORT_IRQ_BAD_PMP;
- writel(pp->intr_mask, port_mmio + PORT_IRQ_MASK);
+
+ /* see comment above in ahci_pmp_attach() */
+ if (!(ap->pflags & ATA_PFLAG_FROZEN))
+ writel(pp->intr_mask, port_mmio + PORT_IRQ_MASK);
}
int ahci_port_resume(struct ata_port *ap)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 423c0a6..76c3c15 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4139,6 +4139,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
*/
{ "PIONEER DVD-RW DVRTD08", "1.00", ATA_HORKAGE_NOSETXFER },
{ "PIONEER DVD-RW DVR-212D", "1.28", ATA_HORKAGE_NOSETXFER },
+ { "PIONEER DVD-RW DVR-216D", "1.08", ATA_HORKAGE_NOSETXFER },
/* End Marker */
{ }
@@ -5480,7 +5481,7 @@ struct ata_port *ata_port_alloc(struct ata_host *host)
if (!ap)
return NULL;
- ap->pflags |= ATA_PFLAG_INITIALIZING;
+ ap->pflags |= ATA_PFLAG_INITIALIZING | ATA_PFLAG_FROZEN;
ap->lock = &host->lock;
ap->print_id = -1;
ap->host = host;
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 88cd22f..f26f2fe 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -3316,6 +3316,7 @@ static int ata_eh_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
struct ata_eh_context *ehc = &link->eh_context;
struct ata_device *dev, *link_dev = NULL, *lpm_dev = NULL;
enum ata_lpm_policy old_policy = link->lpm_policy;
+ bool no_dipm = ap->flags & ATA_FLAG_NO_DIPM;
unsigned int hints = ATA_LPM_EMPTY | ATA_LPM_HIPM;
unsigned int err_mask;
int rc;
@@ -3332,7 +3333,7 @@ static int ata_eh_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
*/
ata_for_each_dev(dev, link, ENABLED) {
bool hipm = ata_id_has_hipm(dev->id);
- bool dipm = ata_id_has_dipm(dev->id);
+ bool dipm = ata_id_has_dipm(dev->id) && !no_dipm;
/* find the first enabled and LPM enabled devices */
if (!link_dev)
@@ -3389,7 +3390,8 @@ static int ata_eh_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
/* host config updated, enable DIPM if transitioning to MIN_POWER */
ata_for_each_dev(dev, link, ENABLED) {
- if (policy == ATA_LPM_MIN_POWER && ata_id_has_dipm(dev->id)) {
+ if (policy == ATA_LPM_MIN_POWER && !no_dipm &&
+ ata_id_has_dipm(dev->id)) {
err_mask = ata_dev_set_feature(dev,
SETFEATURES_SATA_ENABLE, SATA_DIPM);
if (err_mask && err_mask != AC_ERR_DEV) {
diff --git a/drivers/ata/pata_at91.c b/drivers/ata/pata_at91.c
index 0da0dcc..a5fdbdc 100644
--- a/drivers/ata/pata_at91.c
+++ b/drivers/ata/pata_at91.c
@@ -33,11 +33,12 @@
#define DRV_NAME "pata_at91"
-#define DRV_VERSION "0.1"
+#define DRV_VERSION "0.2"
#define CF_IDE_OFFSET 0x00c00000
#define CF_ALT_IDE_OFFSET 0x00e00000
#define CF_IDE_RES_SIZE 0x08
+#define NCS_RD_PULSE_LIMIT 0x3f /* maximal value for pulse bitfields */
struct at91_ide_info {
unsigned long mode;
@@ -49,8 +50,18 @@ struct at91_ide_info {
void __iomem *alt_addr;
};
-static const struct ata_timing initial_timing =
- {XFER_PIO_0, 70, 290, 240, 600, 165, 150, 600, 0};
+static const struct ata_timing initial_timing = {
+ .mode = XFER_PIO_0,
+ .setup = 70,
+ .act8b = 290,
+ .rec8b = 240,
+ .cyc8b = 600,
+ .active = 165,
+ .recover = 150,
+ .dmack_hold = 0,
+ .cycle = 600,
+ .udma = 0
+};
static unsigned long calc_mck_cycles(unsigned long ns, unsigned long mck_hz)
{
@@ -109,6 +120,11 @@ static void set_smc_timing(struct device *dev,
/* (CS0, CS1, DIR, OE) <= (CFCE1, CFCE2, CFRNW, NCSX) timings */
ncs_read_setup = 1;
ncs_read_pulse = read_cycle - 2;
+ if (ncs_read_pulse > NCS_RD_PULSE_LIMIT) {
+ ncs_read_pulse = NCS_RD_PULSE_LIMIT;
+ dev_warn(dev, "ncs_read_pulse limited to maximal value %lu\n",
+ ncs_read_pulse);
+ }
/* Write timings same as read timings */
write_cycle = read_cycle;
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 7f675aa..04f32a3 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -137,8 +137,6 @@ enum {
ATA_DFLAG_ACPI_PENDING = (1 << 5), /* ACPI resume action pending */
ATA_DFLAG_ACPI_FAILED = (1 << 6), /* ACPI on devcfg has failed */
ATA_DFLAG_AN = (1 << 7), /* AN configured */
- ATA_DFLAG_HIPM = (1 << 8), /* device supports HIPM */
- ATA_DFLAG_DIPM = (1 << 9), /* device supports DIPM */
ATA_DFLAG_DMADIR = (1 << 10), /* device requires DMADIR */
ATA_DFLAG_CFG_MASK = (1 << 12) - 1,
@@ -198,6 +196,7 @@ enum {
* management */
ATA_FLAG_SW_ACTIVITY = (1 << 22), /* driver supports sw activity
* led */
+ ATA_FLAG_NO_DIPM = (1 << 23), /* host not happy with DIPM */
/* bits 24:31 of ap->flags are reserved for LLD specific flags */
--
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