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-rw-r--r--drivers/scsi/ahci.c8
-rw-r--r--drivers/scsi/libata-core.c180
-rw-r--r--drivers/scsi/sata_mv.c5
-rw-r--r--drivers/scsi/sata_nv.c4
-rw-r--r--drivers/scsi/sata_promise.c8
-rw-r--r--drivers/scsi/sata_qstor.c6
-rw-r--r--drivers/scsi/sata_sil.c4
-rw-r--r--drivers/scsi/sata_sx4.c19
-rw-r--r--drivers/scsi/sata_vsc.c10
-rw-r--r--drivers/scsi/scsi_error.c2
10 files changed, 211 insertions, 35 deletions
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index 5ec866b..cfa22e4 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -407,7 +407,7 @@ static u32 ahci_scr_read (struct ata_port *ap, unsigned int sc_reg_in)
return 0xffffffffU;
}
- return readl((void *) ap->ioaddr.scr_addr + (sc_reg * 4));
+ return readl((void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
}
@@ -425,7 +425,7 @@ static void ahci_scr_write (struct ata_port *ap, unsigned int sc_reg_in,
return;
}
- writel(val, (void *) ap->ioaddr.scr_addr + (sc_reg * 4));
+ writel(val, (void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
}
static void ahci_phy_reset(struct ata_port *ap)
@@ -453,14 +453,14 @@ static void ahci_phy_reset(struct ata_port *ap)
static u8 ahci_check_status(struct ata_port *ap)
{
- void *mmio = (void *) ap->ioaddr.cmd_addr;
+ void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr;
return readl(mmio + PORT_TFDATA) & 0xFF;
}
static u8 ahci_check_err(struct ata_port *ap)
{
- void *mmio = (void *) ap->ioaddr.cmd_addr;
+ void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr;
return (readl(mmio + PORT_TFDATA) >> 8) & 0xFF;
}
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 175d464..9269fd9 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -1082,6 +1082,31 @@ static inline void ata_dump_id(struct ata_device *dev)
dev->id[93]);
}
+/*
+ * Compute the PIO modes available for this device. This is not as
+ * trivial as it seems if we must consider early devices correctly.
+ *
+ * FIXME: pre IDE drive timing (do we care ?).
+ */
+
+static unsigned int ata_pio_modes(struct ata_device *adev)
+{
+ u16 modes;
+
+ /* Usual case. Word 53 indicates word 88 is valid */
+ if (adev->id[ATA_ID_FIELD_VALID] & (1 << 2)) {
+ modes = adev->id[ATA_ID_PIO_MODES] & 0x03;
+ modes <<= 3;
+ modes |= 0x7;
+ return modes;
+ }
+
+ /* If word 88 isn't valid then Word 51 holds the PIO timing number
+ for the maximum. Turn it into a mask and return it */
+ modes = (2 << (adev->id[ATA_ID_OLD_PIO_MODES] & 0xFF)) - 1 ;
+ return modes;
+}
+
/**
* ata_dev_identify - obtain IDENTIFY x DEVICE page
* @ap: port on which device we wish to probe resides
@@ -1215,10 +1240,8 @@ retry:
xfer_modes = dev->id[ATA_ID_UDMA_MODES];
if (!xfer_modes)
xfer_modes = (dev->id[ATA_ID_MWDMA_MODES]) << ATA_SHIFT_MWDMA;
- if (!xfer_modes) {
- xfer_modes = (dev->id[ATA_ID_PIO_MODES]) << (ATA_SHIFT_PIO + 3);
- xfer_modes |= (0x7 << ATA_SHIFT_PIO);
- }
+ if (!xfer_modes)
+ xfer_modes = ata_pio_modes(dev);
ata_dump_id(dev);
@@ -1515,6 +1538,152 @@ void ata_port_disable(struct ata_port *ap)
ap->flags |= ATA_FLAG_PORT_DISABLED;
}
+/*
+ * This mode timing computation functionality is ported over from
+ * drivers/ide/ide-timing.h and was originally written by Vojtech Pavlik
+ */
+/*
+ * PIO 0-5, MWDMA 0-2 and UDMA 0-6 timings (in nanoseconds).
+ * These were taken from ATA/ATAPI-6 standard, rev 0a, except
+ * for PIO 5, which is a nonstandard extension and UDMA6, which
+ * is currently supported only by Maxtor drives.
+ */
+
+static const struct ata_timing ata_timing[] = {
+
+ { 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_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_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_5, 20, 50, 30, 100, 50, 30, 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 }, */
+
+ { 0xFF }
+};
+
+#define ENOUGH(v,unit) (((v)-1)/(unit)+1)
+#define EZ(v,unit) ((v)?ENOUGH(v,unit):0)
+
+static void ata_timing_quantize(const struct ata_timing *t, struct ata_timing *q, int T, int UT)
+{
+ q->setup = EZ(t->setup * 1000, T);
+ q->act8b = EZ(t->act8b * 1000, T);
+ q->rec8b = EZ(t->rec8b * 1000, T);
+ q->cyc8b = EZ(t->cyc8b * 1000, T);
+ q->active = EZ(t->active * 1000, T);
+ q->recover = EZ(t->recover * 1000, T);
+ q->cycle = EZ(t->cycle * 1000, T);
+ q->udma = EZ(t->udma * 1000, UT);
+}
+
+void ata_timing_merge(const struct ata_timing *a, const struct ata_timing *b,
+ struct ata_timing *m, unsigned int what)
+{
+ if (what & ATA_TIMING_SETUP ) m->setup = max(a->setup, b->setup);
+ if (what & ATA_TIMING_ACT8B ) m->act8b = max(a->act8b, b->act8b);
+ if (what & ATA_TIMING_REC8B ) m->rec8b = max(a->rec8b, b->rec8b);
+ if (what & ATA_TIMING_CYC8B ) m->cyc8b = max(a->cyc8b, b->cyc8b);
+ if (what & ATA_TIMING_ACTIVE ) m->active = max(a->active, b->active);
+ if (what & ATA_TIMING_RECOVER) m->recover = max(a->recover, b->recover);
+ if (what & ATA_TIMING_CYCLE ) m->cycle = max(a->cycle, b->cycle);
+ 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 *t;
+
+ for (t = ata_timing; t->mode != speed; t++)
+ if (t->mode != 0xFF)
+ return NULL;
+ return t;
+}
+
+int ata_timing_compute(struct ata_device *adev, unsigned short speed,
+ struct ata_timing *t, int T, int UT)
+{
+ const struct ata_timing *s;
+ struct ata_timing p;
+
+ /*
+ * Find the mode.
+ */
+
+ if (!(s = ata_timing_find_mode(speed)))
+ return -EINVAL;
+
+ /*
+ * If the drive is an EIDE drive, it can tell us it needs extended
+ * PIO/MW_DMA cycle timing.
+ */
+
+ if (adev->id[ATA_ID_FIELD_VALID] & 2) { /* EIDE drive */
+ memset(&p, 0, sizeof(p));
+ if(speed >= XFER_PIO_0 && speed <= XFER_SW_DMA_0) {
+ if (speed <= XFER_PIO_2) p.cycle = p.cyc8b = adev->id[ATA_ID_EIDE_PIO];
+ else p.cycle = p.cyc8b = adev->id[ATA_ID_EIDE_PIO_IORDY];
+ } else if(speed >= XFER_MW_DMA_0 && speed <= XFER_MW_DMA_2) {
+ p.cycle = adev->id[ATA_ID_EIDE_DMA_MIN];
+ }
+ ata_timing_merge(&p, t, t, ATA_TIMING_CYCLE | ATA_TIMING_CYC8B);
+ }
+
+ /*
+ * Convert the timing to bus clock counts.
+ */
+
+ ata_timing_quantize(s, t, T, UT);
+
+ /*
+ * Even in DMA/UDMA modes we still use PIO access for IDENTIFY, S.M.A.R.T
+ * and some other commands. We have to ensure that the DMA cycle timing is
+ * slower/equal than the fastest PIO timing.
+ */
+
+ if (speed > XFER_PIO_4) {
+ ata_timing_compute(adev, adev->pio_mode, &p, T, UT);
+ ata_timing_merge(&p, t, t, ATA_TIMING_ALL);
+ }
+
+ /*
+ * Lenghten active & recovery time so that cycle time is correct.
+ */
+
+ if (t->act8b + t->rec8b < t->cyc8b) {
+ t->act8b += (t->cyc8b - (t->act8b + t->rec8b)) / 2;
+ t->rec8b = t->cyc8b - t->act8b;
+ }
+
+ if (t->active + t->recover < t->cycle) {
+ t->active += (t->cycle - (t->active + t->recover)) / 2;
+ t->recover = t->cycle - t->active;
+ }
+
+ return 0;
+}
+
static struct {
unsigned int shift;
u8 base;
@@ -4741,6 +4910,9 @@ EXPORT_SYMBOL_GPL(ata_dev_id_string);
EXPORT_SYMBOL_GPL(ata_dev_config);
EXPORT_SYMBOL_GPL(ata_scsi_simulate);
+EXPORT_SYMBOL_GPL(ata_timing_compute);
+EXPORT_SYMBOL_GPL(ata_timing_merge);
+
#ifdef CONFIG_PCI
EXPORT_SYMBOL_GPL(pci_test_config_bits);
EXPORT_SYMBOL_GPL(ata_pci_host_stop);
diff --git a/drivers/scsi/sata_mv.c b/drivers/scsi/sata_mv.c
index d457f56..9b62139 100644
--- a/drivers/scsi/sata_mv.c
+++ b/drivers/scsi/sata_mv.c
@@ -35,7 +35,7 @@
#include <asm/io.h>
#define DRV_NAME "sata_mv"
-#define DRV_VERSION "0.24"
+#define DRV_VERSION "0.25"
enum {
/* BAR's are enumerated in terms of pci_resource_start() terms */
@@ -800,7 +800,8 @@ static void mv_fill_sg(struct ata_queued_cmd *qc)
pp->sg_tbl[i].flags_size = cpu_to_le32(sg_len);
}
if (0 < qc->n_elem) {
- pp->sg_tbl[qc->n_elem - 1].flags_size |= EPRD_FLAG_END_OF_TBL;
+ pp->sg_tbl[qc->n_elem - 1].flags_size |=
+ cpu_to_le32(EPRD_FLAG_END_OF_TBL);
}
}
diff --git a/drivers/scsi/sata_nv.c b/drivers/scsi/sata_nv.c
index 9fa2535..8866530 100644
--- a/drivers/scsi/sata_nv.c
+++ b/drivers/scsi/sata_nv.c
@@ -331,7 +331,7 @@ static u32 nv_scr_read (struct ata_port *ap, unsigned int sc_reg)
return 0xffffffffU;
if (host->host_flags & NV_HOST_FLAGS_SCR_MMIO)
- return readl((void*)ap->ioaddr.scr_addr + (sc_reg * 4));
+ return readl((void __iomem *)ap->ioaddr.scr_addr + (sc_reg * 4));
else
return inl(ap->ioaddr.scr_addr + (sc_reg * 4));
}
@@ -345,7 +345,7 @@ static void nv_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
return;
if (host->host_flags & NV_HOST_FLAGS_SCR_MMIO)
- writel(val, (void*)ap->ioaddr.scr_addr + (sc_reg * 4));
+ writel(val, (void __iomem *)ap->ioaddr.scr_addr + (sc_reg * 4));
else
outl(val, ap->ioaddr.scr_addr + (sc_reg * 4));
}
diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index def7e0d..9bf8cbd 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -324,7 +324,7 @@ static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg)
{
if (sc_reg > SCR_CONTROL)
return 0xffffffffU;
- return readl((void *) ap->ioaddr.scr_addr + (sc_reg * 4));
+ return readl((void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
}
@@ -333,7 +333,7 @@ static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg,
{
if (sc_reg > SCR_CONTROL)
return;
- writel(val, (void *) ap->ioaddr.scr_addr + (sc_reg * 4));
+ writel(val, (void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
}
static void pdc_qc_prep(struct ata_queued_cmd *qc)
@@ -523,8 +523,8 @@ static inline void pdc_packet_start(struct ata_queued_cmd *qc)
pp->pkt[2] = seq;
wmb(); /* flush PRD, pkt writes */
- writel(pp->pkt_dma, (void *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
- readl((void *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); /* flush */
+ writel(pp->pkt_dma, (void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
+ readl((void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); /* flush */
}
static int pdc_qc_issue_prot(struct ata_queued_cmd *qc)
diff --git a/drivers/scsi/sata_qstor.c b/drivers/scsi/sata_qstor.c
index ffcdeb6..e1c1dae 100644
--- a/drivers/scsi/sata_qstor.c
+++ b/drivers/scsi/sata_qstor.c
@@ -51,8 +51,6 @@ enum {
QS_PRD_BYTES = QS_MAX_PRD * 16,
QS_PKT_BYTES = QS_CPB_BYTES + QS_PRD_BYTES,
- QS_DMA_BOUNDARY = ~0UL,
-
/* global register offsets */
QS_HCF_CNFG3 = 0x0003, /* host configuration offset */
QS_HID_HPHY = 0x0004, /* host physical interface info */
@@ -101,6 +99,10 @@ enum {
board_2068_idx = 0, /* QStor 4-port SATA/RAID */
};
+enum {
+ QS_DMA_BOUNDARY = ~0UL
+};
+
typedef enum { qs_state_idle, qs_state_pkt, qs_state_mmio } qs_state_t;
struct qs_port_priv {
diff --git a/drivers/scsi/sata_sil.c b/drivers/scsi/sata_sil.c
index ba98a17..f6f0184 100644
--- a/drivers/scsi/sata_sil.c
+++ b/drivers/scsi/sata_sil.c
@@ -289,7 +289,7 @@ static inline unsigned long sil_scr_addr(struct ata_port *ap, unsigned int sc_re
static u32 sil_scr_read (struct ata_port *ap, unsigned int sc_reg)
{
- void *mmio = (void *) sil_scr_addr(ap, sc_reg);
+ void __iomem *mmio = (void __iomem *) sil_scr_addr(ap, sc_reg);
if (mmio)
return readl(mmio);
return 0xffffffffU;
@@ -297,7 +297,7 @@ static u32 sil_scr_read (struct ata_port *ap, unsigned int sc_reg)
static void sil_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
{
- void *mmio = (void *) sil_scr_addr(ap, sc_reg);
+ void *mmio = (void __iomem *) sil_scr_addr(ap, sc_reg);
if (mmio)
writel(val, mmio);
}
diff --git a/drivers/scsi/sata_sx4.c b/drivers/scsi/sata_sx4.c
index 540a851..d6d350a 100644
--- a/drivers/scsi/sata_sx4.c
+++ b/drivers/scsi/sata_sx4.c
@@ -137,7 +137,7 @@ struct pdc_port_priv {
};
struct pdc_host_priv {
- void *dimm_mmio;
+ void __iomem *dimm_mmio;
unsigned int doing_hdma;
unsigned int hdma_prod;
@@ -247,7 +247,7 @@ static void pdc20621_host_stop(struct ata_host_set *host_set)
{
struct pci_dev *pdev = to_pci_dev(host_set->dev);
struct pdc_host_priv *hpriv = host_set->private_data;
- void *dimm_mmio = hpriv->dimm_mmio;
+ void __iomem *dimm_mmio = hpriv->dimm_mmio;
pci_iounmap(pdev, dimm_mmio);
kfree(hpriv);
@@ -669,8 +669,8 @@ static void pdc20621_packet_start(struct ata_queued_cmd *qc)
readl(mmio + PDC_20621_SEQCTL + (seq * 4)); /* flush */
writel(port_ofs + PDC_DIMM_ATA_PKT,
- (void *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
- readl((void *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
+ (void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
+ readl((void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
VPRINTK("submitted ofs 0x%x (%u), seq %u\n",
port_ofs + PDC_DIMM_ATA_PKT,
port_ofs + PDC_DIMM_ATA_PKT,
@@ -747,8 +747,8 @@ static inline unsigned int pdc20621_host_intr( struct ata_port *ap,
writel(0x00000001, mmio + PDC_20621_SEQCTL + (seq * 4));
readl(mmio + PDC_20621_SEQCTL + (seq * 4));
writel(port_ofs + PDC_DIMM_ATA_PKT,
- (void *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
- readl((void *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
+ (void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
+ readl((void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
}
/* step two - execute ATA command */
@@ -1014,7 +1014,7 @@ static void pdc20621_put_to_dimm(struct ata_probe_ent *pe, void *psource,
idx++;
dist = ((long)(s32)(window_size - (offset + size))) >= 0 ? size :
(long) (window_size - offset);
- memcpy_toio((char *) (dimm_mmio + offset / 4), (char *) psource, dist);
+ memcpy_toio(dimm_mmio + offset / 4, psource, dist);
writel(0x01, mmio + PDC_GENERAL_CTLR);
readl(mmio + PDC_GENERAL_CTLR);
@@ -1023,8 +1023,7 @@ static void pdc20621_put_to_dimm(struct ata_probe_ent *pe, void *psource,
for (; (long) size >= (long) window_size ;) {
writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR);
readl(mmio + PDC_DIMM_WINDOW_CTLR);
- memcpy_toio((char *) (dimm_mmio), (char *) psource,
- window_size / 4);
+ memcpy_toio(dimm_mmio, psource, window_size / 4);
writel(0x01, mmio + PDC_GENERAL_CTLR);
readl(mmio + PDC_GENERAL_CTLR);
psource += window_size;
@@ -1035,7 +1034,7 @@ static void pdc20621_put_to_dimm(struct ata_probe_ent *pe, void *psource,
if (size) {
writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR);
readl(mmio + PDC_DIMM_WINDOW_CTLR);
- memcpy_toio((char *) (dimm_mmio), (char *) psource, size / 4);
+ memcpy_toio(dimm_mmio, psource, size / 4);
writel(0x01, mmio + PDC_GENERAL_CTLR);
readl(mmio + PDC_GENERAL_CTLR);
}
diff --git a/drivers/scsi/sata_vsc.c b/drivers/scsi/sata_vsc.c
index cf94e01..877b9fd 100644
--- a/drivers/scsi/sata_vsc.c
+++ b/drivers/scsi/sata_vsc.c
@@ -86,7 +86,7 @@ static u32 vsc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg)
{
if (sc_reg > SCR_CONTROL)
return 0xffffffffU;
- return readl((void *) ap->ioaddr.scr_addr + (sc_reg * 4));
+ return readl((void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
}
@@ -95,16 +95,16 @@ static void vsc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg,
{
if (sc_reg > SCR_CONTROL)
return;
- writel(val, (void *) ap->ioaddr.scr_addr + (sc_reg * 4));
+ writel(val, (void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
}
static void vsc_intr_mask_update(struct ata_port *ap, u8 ctl)
{
- unsigned long mask_addr;
+ void __iomem *mask_addr;
u8 mask;
- mask_addr = (unsigned long) ap->host_set->mmio_base +
+ mask_addr = ap->host_set->mmio_base +
VSC_SATA_INT_MASK_OFFSET + ap->port_no;
mask = readb(mask_addr);
if (ctl & ATA_NIEN)
@@ -283,7 +283,7 @@ static int __devinit vsc_sata_init_one (struct pci_dev *pdev, const struct pci_d
struct ata_probe_ent *probe_ent = NULL;
unsigned long base;
int pci_dev_busy = 0;
- void *mmio_base;
+ void __iomem *mmio_base;
int rc;
if (!printed_version++)
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index ad53421..52b348c 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -1645,6 +1645,8 @@ int scsi_error_handler(void *data)
set_current_state(TASK_INTERRUPTIBLE);
}
+ __set_current_state(TASK_RUNNING);
+
SCSI_LOG_ERROR_RECOVERY(1, printk("Error handler scsi_eh_%d"
" exiting\n",shost->host_no));