#include <linux/device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
#include <linux/libata.h>
#define DRV_NAME "sata_mv"
-#define DRV_VERSION "1.0"
+#define DRV_VERSION "1.01"
enum {
/* BAR's are enumerated in terms of pci_resource_start() terms */
#define IS_GEN_IIE(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_IIE)
enum {
- MV_DMA_BOUNDARY = 0xffffffffU,
+ /* DMA boundary 0xffff is required by the s/g splitting
+ * we need on /length/ in mv_fill-sg().
+ */
+ MV_DMA_BOUNDARY = 0xffffU,
/* mask of register bits containing lower 32 bits
* of EDMA request queue DMA address
.queuecommand = ata_scsi_queuecmd,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
- .sg_tablesize = MV_MAX_SG_CT,
+ .sg_tablesize = MV_MAX_SG_CT / 2,
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
.emulated = ATA_SHT_EMULATED,
.use_clustering = 1,
.queuecommand = ata_scsi_queuecmd,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
- .sg_tablesize = MV_MAX_SG_CT,
+ .sg_tablesize = MV_MAX_SG_CT / 2,
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
.emulated = ATA_SHT_EMULATED,
.use_clustering = 1,
};
static const struct ata_port_operations mv5_ops = {
- .port_disable = ata_port_disable,
-
.tf_load = ata_tf_load,
.tf_read = ata_tf_read,
.check_status = ata_check_status,
.irq_clear = mv_irq_clear,
.irq_on = ata_irq_on,
- .irq_ack = ata_irq_ack,
.error_handler = mv_error_handler,
.post_internal_cmd = mv_post_int_cmd,
};
static const struct ata_port_operations mv6_ops = {
- .port_disable = ata_port_disable,
-
.tf_load = ata_tf_load,
.tf_read = ata_tf_read,
.check_status = ata_check_status,
.irq_clear = mv_irq_clear,
.irq_on = ata_irq_on,
- .irq_ack = ata_irq_ack,
.error_handler = mv_error_handler,
.post_internal_cmd = mv_post_int_cmd,
};
static const struct ata_port_operations mv_iie_ops = {
- .port_disable = ata_port_disable,
-
.tf_load = ata_tf_load,
.tf_read = ata_tf_read,
.check_status = ata_check_status,
.irq_clear = mv_irq_clear,
.irq_on = ata_irq_on,
- .irq_ack = ata_irq_ack,
.error_handler = mv_error_handler,
.post_internal_cmd = mv_post_int_cmd,
pp->pp_flags &= ~MV_PP_FLAG_EDMA_EN;
} else {
WARN_ON(EDMA_EN & readl(port_mmio + EDMA_CMD_OFS));
- }
+ }
/* now properly wait for the eDMA to stop */
for (i = 1000; i > 0; i--) {
for (b = 0; b < bytes; ) {
DPRINTK("%p: ", start + b);
for (w = 0; b < bytes && w < 4; w++) {
- printk("%08x ",readl(start + b));
+ printk("%08x ", readl(start + b));
b += sizeof(u32);
}
printk("\n");
for (b = 0; b < bytes; ) {
DPRINTK("%02x: ", b);
for (w = 0; b < bytes && w < 4; w++) {
- (void) pci_read_config_dword(pdev,b,&dw);
- printk("%08x ",dw);
+ (void) pci_read_config_dword(pdev, b, &dw);
+ printk("%08x ", dw);
b += sizeof(u32);
}
printk("\n");
}
for (p = start_port; p < start_port + num_ports; p++) {
port_base = mv_port_base(mmio_base, p);
- DPRINTK("EDMA regs (port %i):\n",p);
+ DPRINTK("EDMA regs (port %i):\n", p);
mv_dump_mem(port_base, 0x54);
- DPRINTK("SATA regs (port %i):\n",p);
+ DPRINTK("SATA regs (port %i):\n", p);
mv_dump_mem(port_base+0x300, 0x60);
}
#endif
* LOCKING:
* Inherited from caller.
*/
-static unsigned int mv_fill_sg(struct ata_queued_cmd *qc)
+static void mv_fill_sg(struct ata_queued_cmd *qc)
{
struct mv_port_priv *pp = qc->ap->private_data;
- unsigned int n_sg = 0;
struct scatterlist *sg;
- struct mv_sg *mv_sg;
+ struct mv_sg *mv_sg, *last_sg = NULL;
mv_sg = pp->sg_tbl;
ata_for_each_sg(sg, qc) {
dma_addr_t addr = sg_dma_address(sg);
u32 sg_len = sg_dma_len(sg);
- mv_sg->addr = cpu_to_le32(addr & 0xffffffff);
- mv_sg->addr_hi = cpu_to_le32((addr >> 16) >> 16);
- mv_sg->flags_size = cpu_to_le32(sg_len & 0xffff);
+ while (sg_len) {
+ u32 offset = addr & 0xffff;
+ u32 len = sg_len;
+
+ if ((offset + sg_len > 0x10000))
+ len = 0x10000 - offset;
- if (ata_sg_is_last(sg, qc))
- mv_sg->flags_size |= cpu_to_le32(EPRD_FLAG_END_OF_TBL);
+ mv_sg->addr = cpu_to_le32(addr & 0xffffffff);
+ mv_sg->addr_hi = cpu_to_le32((addr >> 16) >> 16);
+ mv_sg->flags_size = cpu_to_le32(len & 0xffff);
- mv_sg++;
- n_sg++;
+ sg_len -= len;
+ addr += len;
+
+ last_sg = mv_sg;
+ mv_sg++;
+ }
}
- return n_sg;
+ if (likely(last_sg))
+ last_sg->flags_size |= cpu_to_le32(EPRD_FLAG_END_OF_TBL);
}
-static inline void mv_crqb_pack_cmd(__le16 *cmdw, u8 data, u8 addr, unsigned last)
+static void mv_crqb_pack_cmd(__le16 *cmdw, u8 data, u8 addr, unsigned last)
{
u16 tmp = data | (addr << CRQB_CMD_ADDR_SHIFT) | CRQB_CMD_CS |
(last ? CRQB_CMD_LAST : 0);
u16 flags = 0;
unsigned in_index;
- if (qc->tf.protocol != ATA_PROT_DMA)
+ if (qc->tf.protocol != ATA_PROT_DMA)
return;
/* Fill in command request block
unsigned in_index;
u32 flags = 0;
- if (qc->tf.protocol != ATA_PROT_DMA)
+ if (qc->tf.protocol != ATA_PROT_DMA)
return;
/* Fill in Gen IIE command request block
struct mv_host_priv *hpriv = ap->host->private_data;
unsigned int edma_enabled = (pp->pp_flags & MV_PP_FLAG_EDMA_EN);
unsigned int action = 0, err_mask = 0;
- struct ata_eh_info *ehi = &ap->eh_info;
+ struct ata_eh_info *ehi = &ap->link.eh_info;
ata_ehi_clear_desc(ehi);
/* just a guess: do we need to do this? should we
* expand this, and do it in all cases?
*/
- sata_scr_read(ap, SCR_ERROR, &serr);
- sata_scr_write_flush(ap, SCR_ERROR, serr);
+ sata_scr_read(&ap->link, SCR_ERROR, &serr);
+ sata_scr_write_flush(&ap->link, SCR_ERROR, serr);
}
edma_err_cause = readl(port_mmio + EDMA_ERR_IRQ_CAUSE_OFS);
}
if (edma_err_cause & EDMA_ERR_SERR) {
- sata_scr_read(ap, SCR_ERROR, &serr);
- sata_scr_write_flush(ap, SCR_ERROR, serr);
+ sata_scr_read(&ap->link, SCR_ERROR, &serr);
+ sata_scr_write_flush(&ap->link, SCR_ERROR, serr);
err_mask = AC_ERR_ATA_BUS;
action |= ATA_EH_HARDRESET;
}
return;
/* get active ATA command */
- qc = ata_qc_from_tag(ap, ap->active_tag);
+ qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (unlikely(!qc)) /* no active tag */
return;
if (qc->tf.flags & ATA_TFLAG_POLLING) /* polling; we don't own qc */
/* 50xx: get active ATA command */
if (IS_GEN_I(hpriv))
- tag = ap->active_tag;
+ tag = ap->link.active_tag;
/* Gen II/IIE: get active ATA command via tag, to enable
* support for queueing. this works transparently for
writelfl(~hc_irq_cause, hc_mmio + HC_IRQ_CAUSE_OFS);
VPRINTK("ENTER, hc%u relevant=0x%08x HC IRQ cause=0x%08x\n",
- hc,relevant,hc_irq_cause);
+ hc, relevant, hc_irq_cause);
for (port = port0; port < port0 + MV_PORTS_PER_HC; port++) {
struct ata_port *ap = host->ports[port];
if (unlikely(have_err_bits)) {
struct ata_queued_cmd *qc;
- qc = ata_qc_from_tag(ap, ap->active_tag);
+ qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc && (qc->tf.flags & ATA_TFLAG_POLLING))
continue;
for (i = 0; i < host->n_ports; i++) {
ap = host->ports[i];
- if (!ata_port_offline(ap)) {
- ehi = &ap->eh_info;
+ if (!ata_link_offline(&ap->link)) {
+ ehi = &ap->link.eh_info;
ata_ehi_clear_desc(ehi);
if (!printed++)
ata_ehi_push_desc(ehi,
"PCI err cause 0x%08x", err_cause);
err_mask = AC_ERR_HOST_BUS;
ehi->action = ATA_EH_HARDRESET;
- qc = ata_qc_from_tag(ap, ap->active_tag);
+ qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (qc)
qc->err_mask |= err_mask;
else
for (i = 0; i < 1000; i++) {
udelay(1);
t = readl(reg);
- if (PCI_MASTER_EMPTY & t) {
+ if (PCI_MASTER_EMPTY & t)
break;
- }
}
if (!(PCI_MASTER_EMPTY & t)) {
printk(KERN_ERR DRV_NAME ": PCI master won't flush\n");
/* Issue COMRESET via SControl */
comreset_retry:
- sata_scr_write_flush(ap, SCR_CONTROL, 0x301);
+ sata_scr_write_flush(&ap->link, SCR_CONTROL, 0x301);
msleep(1);
- sata_scr_write_flush(ap, SCR_CONTROL, 0x300);
+ sata_scr_write_flush(&ap->link, SCR_CONTROL, 0x300);
msleep(20);
do {
- sata_scr_read(ap, SCR_STATUS, &sstatus);
+ sata_scr_read(&ap->link, SCR_STATUS, &sstatus);
if (((sstatus & 0x3) == 3) || ((sstatus & 0x3) == 0))
break;
}
#endif
- if (ata_port_offline(ap)) {
+ if (ata_link_offline(&ap->link)) {
*class = ATA_DEV_NONE;
return;
}
*/
/* finally, read device signature from TF registers */
- *class = ata_dev_try_classify(ap, 0, NULL);
+ *class = ata_dev_try_classify(ap->link.device, 1, NULL);
writelfl(0, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS);
VPRINTK("EXIT\n");
}
-static int mv_prereset(struct ata_port *ap, unsigned long deadline)
+static int mv_prereset(struct ata_link *link, unsigned long deadline)
{
+ struct ata_port *ap = link->ap;
struct mv_port_priv *pp = ap->private_data;
- struct ata_eh_context *ehc = &ap->eh_context;
+ struct ata_eh_context *ehc = &link->eh_context;
int rc;
rc = mv_stop_dma(ap);
if (ehc->i.action & ATA_EH_HARDRESET)
return 0;
- if (ata_port_online(ap))
+ if (ata_link_online(link))
rc = ata_wait_ready(ap, deadline);
else
rc = -ENODEV;
return rc;
}
-static int mv_hardreset(struct ata_port *ap, unsigned int *class,
+static int mv_hardreset(struct ata_link *link, unsigned int *class,
unsigned long deadline)
{
+ struct ata_port *ap = link->ap;
struct mv_host_priv *hpriv = ap->host->private_data;
void __iomem *mmio = ap->host->iomap[MV_PRIMARY_BAR];
return 0;
}
-static void mv_postreset(struct ata_port *ap, unsigned int *classes)
+static void mv_postreset(struct ata_link *link, unsigned int *classes)
{
+ struct ata_port *ap = link->ap;
u32 serr;
/* print link status */
- sata_print_link_status(ap);
+ sata_print_link_status(link);
/* clear SError */
- sata_scr_read(ap, SCR_ERROR, &serr);
- sata_scr_write_flush(ap, SCR_ERROR, serr);
+ sata_scr_read(link, SCR_ERROR, &serr);
+ sata_scr_write_flush(link, SCR_ERROR, serr);
/* bail out if no device is present */
if (classes[0] == ATA_DEV_NONE && classes[1] == ATA_DEV_NONE) {
struct mv_host_priv *hpriv = host->private_data;
u32 hp_flags = hpriv->hp_flags;
- switch(board_idx) {
+ switch (board_idx) {
case chip_5080:
hpriv->ops = &mv5xxx_ops;
hp_flags |= MV_HP_GEN_I;
break;
default:
- printk(KERN_ERR DRV_NAME ": BUG: invalid board index %u\n", board_idx);
+ dev_printk(KERN_ERR, &pdev->dev,
+ "BUG: invalid board index %u\n", board_idx);
return 1;
}
}
for (port = 0; port < host->n_ports; port++) {
+ struct ata_port *ap = host->ports[port];
void __iomem *port_mmio = mv_port_base(mmio, port);
- mv_port_init(&host->ports[port]->ioaddr, port_mmio);
+ unsigned int offset = port_mmio - mmio;
+
+ mv_port_init(&ap->ioaddr, port_mmio);
+
+ ata_port_pbar_desc(ap, MV_PRIMARY_BAR, -1, "mmio");
+ ata_port_pbar_desc(ap, MV_PRIMARY_BAR, offset, "port");
}
for (hc = 0; hc < n_hc; hc++) {
*/
static int mv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
- static int printed_version = 0;
+ static int printed_version;
unsigned int board_idx = (unsigned int)ent->driver_data;
const struct ata_port_info *ppi[] = { &mv_port_info[board_idx], NULL };
struct ata_host *host;
git.openpandora.org / pandora-kernel.git / blobdiff