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Merge branch 'upstream-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev

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Linus Torvalds 2005-11-12 10:39:03 -08:00
commit ae5684ceb4
2 changed files with 33 additions and 8 deletions
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32
drivers/scsi/ahci.c
View file

@ -134,6 +134,7 @@ enum {
PORT_IRQ_D2H_REG_FIS,
/* PORT_CMD bits */
PORT_CMD_ATAPI = (1 << 24), /* Device is ATAPI */
PORT_CMD_LIST_ON = (1 << 15), /* cmd list DMA engine running */
PORT_CMD_FIS_ON = (1 << 14), /* FIS DMA engine running */
PORT_CMD_FIS_RX = (1 << 4), /* Enable FIS receive DMA engine */
@ -441,7 +442,7 @@ static void ahci_phy_reset(struct ata_port *ap)
void __iomem *port_mmio = (void __iomem *) ap->ioaddr.cmd_addr;
struct ata_taskfile tf;
struct ata_device *dev = &ap->device[0];
u32 tmp;
u32 new_tmp, tmp;
__sata_phy_reset(ap);
@ -455,8 +456,21 @@ static void ahci_phy_reset(struct ata_port *ap)
tf.nsect = (tmp) & 0xff;
dev->class = ata_dev_classify(&tf);
if (!ata_dev_present(dev))
if (!ata_dev_present(dev)) {
ata_port_disable(ap);
return;
}
/* Make sure port's ATAPI bit is set appropriately */
new_tmp = tmp = readl(port_mmio + PORT_CMD);
if (dev->class == ATA_DEV_ATAPI)
new_tmp |= PORT_CMD_ATAPI;
else
new_tmp &= ~PORT_CMD_ATAPI;
if (new_tmp != tmp) {
writel(new_tmp, port_mmio + PORT_CMD);
readl(port_mmio + PORT_CMD); /* flush */
}
}
static u8 ahci_check_status(struct ata_port *ap)
@ -474,11 +488,12 @@ static void ahci_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
ata_tf_from_fis(d2h_fis, tf);
}
static void ahci_fill_sg(struct ata_queued_cmd *qc)
static unsigned int ahci_fill_sg(struct ata_queued_cmd *qc)
{
struct ahci_port_priv *pp = qc->ap->private_data;
struct scatterlist *sg;
struct ahci_sg *ahci_sg;
unsigned int n_sg = 0;
VPRINTK("ENTER\n");
@ -493,8 +508,12 @@ static void ahci_fill_sg(struct ata_queued_cmd *qc)
ahci_sg->addr = cpu_to_le32(addr & 0xffffffff);
ahci_sg->addr_hi = cpu_to_le32((addr >> 16) >> 16);
ahci_sg->flags_size = cpu_to_le32(sg_len - 1);
ahci_sg++;
n_sg++;
}
return n_sg;
}
static void ahci_qc_prep(struct ata_queued_cmd *qc)
@ -503,13 +522,14 @@ static void ahci_qc_prep(struct ata_queued_cmd *qc)
struct ahci_port_priv *pp = ap->private_data;
u32 opts;
const u32 cmd_fis_len = 5; /* five dwords */
unsigned int n_elem;
/*
* Fill in command slot information (currently only one slot,
* slot 0, is currently since we don't do queueing)
*/
opts = (qc->n_elem << 16) | cmd_fis_len;
opts = cmd_fis_len;
if (qc->tf.flags & ATA_TFLAG_WRITE)
opts |= AHCI_CMD_WRITE;
if (is_atapi_taskfile(&qc->tf))
@ -533,7 +553,9 @@ static void ahci_qc_prep(struct ata_queued_cmd *qc)
if (!(qc->flags & ATA_QCFLAG_DMAMAP))
return;
ahci_fill_sg(qc);
n_elem = ahci_fill_sg(qc);
pp->cmd_slot[0].opts |= cpu_to_le32(n_elem << 16);
}
static void ahci_intr_error(struct ata_port *ap, u32 irq_stat)

9
drivers/scsi/sata_qstor.c
View file

@ -268,7 +268,7 @@ static void qs_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
writel(val, (void __iomem *)(ap->ioaddr.scr_addr + (sc_reg * 8)));
}
static void qs_fill_sg(struct ata_queued_cmd *qc)
static unsigned int qs_fill_sg(struct ata_queued_cmd *qc)
{
struct scatterlist *sg;
struct ata_port *ap = qc->ap;
@ -296,6 +296,8 @@ static void qs_fill_sg(struct ata_queued_cmd *qc)
(unsigned long long)addr, len);
nelem++;
}
return nelem;
}
static void qs_qc_prep(struct ata_queued_cmd *qc)
@ -304,6 +306,7 @@ static void qs_qc_prep(struct ata_queued_cmd *qc)
u8 dflags = QS_DF_PORD, *buf = pp->pkt;
u8 hflags = QS_HF_DAT | QS_HF_IEN | QS_HF_VLD;
u64 addr;
unsigned int nelem;
VPRINTK("ENTER\n");
@ -313,7 +316,7 @@ static void qs_qc_prep(struct ata_queued_cmd *qc)
return;
}
qs_fill_sg(qc);
nelem = qs_fill_sg(qc);
if ((qc->tf.flags & ATA_TFLAG_WRITE))
hflags |= QS_HF_DIRO;
@ -324,7 +327,7 @@ static void qs_qc_prep(struct ata_queued_cmd *qc)
buf[ 0] = QS_HCB_HDR;
buf[ 1] = hflags;
*(__le32 *)(&buf[ 4]) = cpu_to_le32(qc->nsect * ATA_SECT_SIZE);
*(__le32 *)(&buf[ 8]) = cpu_to_le32(qc->n_elem);
*(__le32 *)(&buf[ 8]) = cpu_to_le32(nelem);
addr = ((u64)pp->pkt_dma) + QS_CPB_BYTES;
*(__le64 *)(&buf[16]) = cpu_to_le64(addr);