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Message-id: <1483106478-1382-3-git-send-email-b.zolnierkie@samsung.com>
Date: Fri, 30 Dec 2016 15:01:17 +0100
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To: Tejun Heo <tj@...nel.org>
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>,
Michael Schmitz <schmitzmic@...il.com>,
linux-ide@...r.kernel.org, linux-m68k@...ts.linux-m68k.org,
linux-kernel@...r.kernel.org, b.zolnierkie@...sung.com
Subject: [PATCH 2/3] ata: pass queued command to ->sff_data_xfer method
For Atari Falcon PATA support we need to check the current command
in its ->sff_data_xfer method. Update core code and all users
accordingly.
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
---
drivers/ata/libata-sff.c | 29 +++++++++++++++--------------
drivers/ata/pata_at91.c | 6 +++---
drivers/ata/pata_bf54x.c | 7 ++++---
drivers/ata/pata_ep93xx.c | 4 ++--
drivers/ata/pata_ixp4xx_cf.c | 4 ++--
drivers/ata/pata_legacy.c | 15 +++++++++------
drivers/ata/pata_octeon_cf.c | 12 ++++++------
drivers/ata/pata_pcmcia.c | 6 +++---
drivers/ata/pata_samsung_cf.c | 4 ++--
drivers/ata/sata_rcar.c | 4 ++--
include/linux/libata.h | 8 ++++----
11 files changed, 52 insertions(+), 47 deletions(-)
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 051b615..4441b5c 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -542,7 +542,7 @@ static inline void ata_tf_to_host(struct ata_port *ap,
/**
* ata_sff_data_xfer - Transfer data by PIO
- * @dev: device to target
+ * @qc: queued command
* @buf: data buffer
* @buflen: buffer length
* @rw: read/write
@@ -555,10 +555,10 @@ static inline void ata_tf_to_host(struct ata_port *ap,
* RETURNS:
* Bytes consumed.
*/
-unsigned int ata_sff_data_xfer(struct ata_device *dev, unsigned char *buf,
+unsigned int ata_sff_data_xfer(struct ata_queued_cmd *qc, unsigned char *buf,
unsigned int buflen, int rw)
{
- struct ata_port *ap = dev->link->ap;
+ struct ata_port *ap = qc->dev->link->ap;
void __iomem *data_addr = ap->ioaddr.data_addr;
unsigned int words = buflen >> 1;
@@ -595,7 +595,7 @@ unsigned int ata_sff_data_xfer(struct ata_device *dev, unsigned char *buf,
/**
* ata_sff_data_xfer32 - Transfer data by PIO
- * @dev: device to target
+ * @qc: queued command
* @buf: data buffer
* @buflen: buffer length
* @rw: read/write
@@ -610,16 +610,17 @@ unsigned int ata_sff_data_xfer(struct ata_device *dev, unsigned char *buf,
* Bytes consumed.
*/
-unsigned int ata_sff_data_xfer32(struct ata_device *dev, unsigned char *buf,
+unsigned int ata_sff_data_xfer32(struct ata_queued_cmd *qc, unsigned char *buf,
unsigned int buflen, int rw)
{
+ struct ata_device *dev = qc->dev;
struct ata_port *ap = dev->link->ap;
void __iomem *data_addr = ap->ioaddr.data_addr;
unsigned int words = buflen >> 2;
int slop = buflen & 3;
if (!(ap->pflags & ATA_PFLAG_PIO32))
- return ata_sff_data_xfer(dev, buf, buflen, rw);
+ return ata_sff_data_xfer(qc, buf, buflen, rw);
/* Transfer multiple of 4 bytes */
if (rw == READ)
@@ -658,7 +659,7 @@ unsigned int ata_sff_data_xfer32(struct ata_device *dev, unsigned char *buf,
/**
* ata_sff_data_xfer_noirq - Transfer data by PIO
- * @dev: device to target
+ * @qc: queued command
* @buf: data buffer
* @buflen: buffer length
* @rw: read/write
@@ -672,14 +673,14 @@ unsigned int ata_sff_data_xfer32(struct ata_device *dev, unsigned char *buf,
* RETURNS:
* Bytes consumed.
*/
-unsigned int ata_sff_data_xfer_noirq(struct ata_device *dev, unsigned char *buf,
+unsigned int ata_sff_data_xfer_noirq(struct ata_queued_cmd *qc, unsigned char *buf,
unsigned int buflen, int rw)
{
unsigned long flags;
unsigned int consumed;
local_irq_save(flags);
- consumed = ata_sff_data_xfer32(dev, buf, buflen, rw);
+ consumed = ata_sff_data_xfer32(qc, buf, buflen, rw);
local_irq_restore(flags);
return consumed;
@@ -723,14 +724,14 @@ static void ata_pio_sector(struct ata_queued_cmd *qc)
buf = kmap_atomic(page);
/* do the actual data transfer */
- ap->ops->sff_data_xfer(qc->dev, buf + offset, qc->sect_size,
+ ap->ops->sff_data_xfer(qc, buf + offset, qc->sect_size,
do_write);
kunmap_atomic(buf);
local_irq_restore(flags);
} else {
buf = page_address(page);
- ap->ops->sff_data_xfer(qc->dev, buf + offset, qc->sect_size,
+ ap->ops->sff_data_xfer(qc, buf + offset, qc->sect_size,
do_write);
}
@@ -791,7 +792,7 @@ static void atapi_send_cdb(struct ata_port *ap, struct ata_queued_cmd *qc)
DPRINTK("send cdb\n");
WARN_ON_ONCE(qc->dev->cdb_len < 12);
- ap->ops->sff_data_xfer(qc->dev, qc->cdb, qc->dev->cdb_len, 1);
+ ap->ops->sff_data_xfer(qc, qc->cdb, qc->dev->cdb_len, 1);
ata_sff_sync(ap);
/* FIXME: If the CDB is for DMA do we need to do the transition delay
or is bmdma_start guaranteed to do it ? */
@@ -868,14 +869,14 @@ static int __atapi_pio_bytes(struct ata_queued_cmd *qc, unsigned int bytes)
buf = kmap_atomic(page);
/* do the actual data transfer */
- consumed = ap->ops->sff_data_xfer(dev, buf + offset,
+ consumed = ap->ops->sff_data_xfer(qc, buf + offset,
count, rw);
kunmap_atomic(buf);
local_irq_restore(flags);
} else {
buf = page_address(page);
- consumed = ap->ops->sff_data_xfer(dev, buf + offset,
+ consumed = ap->ops->sff_data_xfer(qc, buf + offset,
count, rw);
}
diff --git a/drivers/ata/pata_at91.c b/drivers/ata/pata_at91.c
index 1611e0e..fd5b34f 100644
--- a/drivers/ata/pata_at91.c
+++ b/drivers/ata/pata_at91.c
@@ -286,10 +286,10 @@ static void pata_at91_set_piomode(struct ata_port *ap, struct ata_device *adev)
set_smc_timing(ap->dev, adev, info, &timing);
}
-static unsigned int pata_at91_data_xfer_noirq(struct ata_device *dev,
+static unsigned int pata_at91_data_xfer_noirq(struct ata_queued_cmd *qc,
unsigned char *buf, unsigned int buflen, int rw)
{
- struct at91_ide_info *info = dev->link->ap->host->private_data;
+ struct at91_ide_info *info = qc->dev->link->ap->host->private_data;
unsigned int consumed;
unsigned int mode;
unsigned long flags;
@@ -301,7 +301,7 @@ static unsigned int pata_at91_data_xfer_noirq(struct ata_device *dev,
regmap_fields_write(fields.mode, info->cs, (mode & ~AT91_SMC_DBW) |
AT91_SMC_DBW_16);
- consumed = ata_sff_data_xfer(dev, buf, buflen, rw);
+ consumed = ata_sff_data_xfer(qc, buf, buflen, rw);
/* restore 8bit mode after data is written */
regmap_fields_write(fields.mode, info->cs, (mode & ~AT91_SMC_DBW) |
diff --git a/drivers/ata/pata_bf54x.c b/drivers/ata/pata_bf54x.c
index ec748d3..9c5780a 100644
--- a/drivers/ata/pata_bf54x.c
+++ b/drivers/ata/pata_bf54x.c
@@ -1143,7 +1143,7 @@ static unsigned char bfin_bmdma_status(struct ata_port *ap)
/**
* bfin_data_xfer - Transfer data by PIO
- * @adev: device for this I/O
+ * @qc: queued command
* @buf: data buffer
* @buflen: buffer length
* @write_data: read/write
@@ -1151,10 +1151,11 @@ static unsigned char bfin_bmdma_status(struct ata_port *ap)
* Note: Original code is ata_sff_data_xfer().
*/
-static unsigned int bfin_data_xfer(struct ata_device *dev, unsigned char *buf,
+static unsigned int bfin_data_xfer(struct ata_queued_cmd *qc,
+ unsigned char *buf,
unsigned int buflen, int rw)
{
- struct ata_port *ap = dev->link->ap;
+ struct ata_port *ap = qc->dev->link->ap;
void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
unsigned int words = buflen >> 1;
unsigned short *buf16 = (u16 *)buf;
diff --git a/drivers/ata/pata_ep93xx.c b/drivers/ata/pata_ep93xx.c
index bd6b089..bf1b910 100644
--- a/drivers/ata/pata_ep93xx.c
+++ b/drivers/ata/pata_ep93xx.c
@@ -474,11 +474,11 @@ static void ep93xx_pata_set_devctl(struct ata_port *ap, u8 ctl)
}
/* Note: original code is ata_sff_data_xfer */
-static unsigned int ep93xx_pata_data_xfer(struct ata_device *adev,
+static unsigned int ep93xx_pata_data_xfer(struct ata_queued_cmd *qc,
unsigned char *buf,
unsigned int buflen, int rw)
{
- struct ata_port *ap = adev->link->ap;
+ struct ata_port *ap = qc->dev->link->ap;
struct ep93xx_pata_data *drv_data = ap->host->private_data;
u16 *data = (u16 *)buf;
unsigned int words = buflen >> 1;
diff --git a/drivers/ata/pata_ixp4xx_cf.c b/drivers/ata/pata_ixp4xx_cf.c
index abda441..0b0d930 100644
--- a/drivers/ata/pata_ixp4xx_cf.c
+++ b/drivers/ata/pata_ixp4xx_cf.c
@@ -40,13 +40,13 @@ static int ixp4xx_set_mode(struct ata_link *link, struct ata_device **error)
return 0;
}
-static unsigned int ixp4xx_mmio_data_xfer(struct ata_device *dev,
+static unsigned int ixp4xx_mmio_data_xfer(struct ata_queued_cmd *qc,
unsigned char *buf, unsigned int buflen, int rw)
{
unsigned int i;
unsigned int words = buflen >> 1;
u16 *buf16 = (u16 *) buf;
- struct ata_port *ap = dev->link->ap;
+ struct ata_port *ap = qc->dev->link->ap;
void __iomem *mmio = ap->ioaddr.data_addr;
struct ixp4xx_pata_data *data = dev_get_platdata(ap->host->dev);
diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
index bce2a8c..53828b6c 100644
--- a/drivers/ata/pata_legacy.c
+++ b/drivers/ata/pata_legacy.c
@@ -303,11 +303,12 @@ static void pdc20230_set_piomode(struct ata_port *ap, struct ata_device *adev)
}
-static unsigned int pdc_data_xfer_vlb(struct ata_device *dev,
+static unsigned int pdc_data_xfer_vlb(struct ata_queued_cmd *qc,
unsigned char *buf, unsigned int buflen, int rw)
{
- int slop = buflen & 3;
+ struct ata_device *dev = qc->dev;
struct ata_port *ap = dev->link->ap;
+ int slop = buflen & 3;
/* 32bit I/O capable *and* we need to write a whole number of dwords */
if (ata_id_has_dword_io(dev->id) && (slop == 0 || slop == 3)
@@ -340,7 +341,7 @@ static unsigned int pdc_data_xfer_vlb(struct ata_device *dev,
}
local_irq_restore(flags);
} else
- buflen = ata_sff_data_xfer_noirq(dev, buf, buflen, rw);
+ buflen = ata_sff_data_xfer_noirq(qc, buf, buflen, rw);
return buflen;
}
@@ -702,9 +703,11 @@ static unsigned int qdi_qc_issue(struct ata_queued_cmd *qc)
return ata_sff_qc_issue(qc);
}
-static unsigned int vlb32_data_xfer(struct ata_device *adev, unsigned char *buf,
- unsigned int buflen, int rw)
+static unsigned int vlb32_data_xfer(struct ata_queued_cmd *qc,
+ unsigned char *buf,
+ unsigned int buflen, int rw)
{
+ struct ata_device *adev = qc->dev;
struct ata_port *ap = adev->link->ap;
int slop = buflen & 3;
@@ -727,7 +730,7 @@ static unsigned int vlb32_data_xfer(struct ata_device *adev, unsigned char *buf,
}
return (buflen + 3) & ~3;
} else
- return ata_sff_data_xfer(adev, buf, buflen, rw);
+ return ata_sff_data_xfer(qc, buf, buflen, rw);
}
static int qdi_port(struct platform_device *dev,
diff --git a/drivers/ata/pata_octeon_cf.c b/drivers/ata/pata_octeon_cf.c
index 475a006..e94e7ca 100644
--- a/drivers/ata/pata_octeon_cf.c
+++ b/drivers/ata/pata_octeon_cf.c
@@ -293,17 +293,17 @@ static void octeon_cf_set_dmamode(struct ata_port *ap, struct ata_device *dev)
/**
* Handle an 8 bit I/O request.
*
- * @dev: Device to access
+ * @qc: Queued command
* @buffer: Data buffer
* @buflen: Length of the buffer.
* @rw: True to write.
*/
-static unsigned int octeon_cf_data_xfer8(struct ata_device *dev,
+static unsigned int octeon_cf_data_xfer8(struct ata_queued_cmd *qc,
unsigned char *buffer,
unsigned int buflen,
int rw)
{
- struct ata_port *ap = dev->link->ap;
+ struct ata_port *ap = qc->dev->link->ap;
void __iomem *data_addr = ap->ioaddr.data_addr;
unsigned long words;
int count;
@@ -332,17 +332,17 @@ static unsigned int octeon_cf_data_xfer8(struct ata_device *dev,
/**
* Handle a 16 bit I/O request.
*
- * @dev: Device to access
+ * @qc: Queued command
* @buffer: Data buffer
* @buflen: Length of the buffer.
* @rw: True to write.
*/
-static unsigned int octeon_cf_data_xfer16(struct ata_device *dev,
+static unsigned int octeon_cf_data_xfer16(struct ata_queued_cmd *qc,
unsigned char *buffer,
unsigned int buflen,
int rw)
{
- struct ata_port *ap = dev->link->ap;
+ struct ata_port *ap = qc->dev->link->ap;
void __iomem *data_addr = ap->ioaddr.data_addr;
unsigned long words;
int count;
diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c
index bcc4b96..a541eac 100644
--- a/drivers/ata/pata_pcmcia.c
+++ b/drivers/ata/pata_pcmcia.c
@@ -90,7 +90,7 @@ static int pcmcia_set_mode_8bit(struct ata_link *link,
/**
* ata_data_xfer_8bit - Transfer data by 8bit PIO
- * @dev: device to target
+ * @qc: queued command
* @buf: data buffer
* @buflen: buffer length
* @rw: read/write
@@ -101,10 +101,10 @@ static int pcmcia_set_mode_8bit(struct ata_link *link,
* Inherited from caller.
*/
-static unsigned int ata_data_xfer_8bit(struct ata_device *dev,
+static unsigned int ata_data_xfer_8bit(struct ata_queued_cmd *qc,
unsigned char *buf, unsigned int buflen, int rw)
{
- struct ata_port *ap = dev->link->ap;
+ struct ata_port *ap = qc->dev->link->ap;
if (rw == READ)
ioread8_rep(ap->ioaddr.data_addr, buf, buflen);
diff --git a/drivers/ata/pata_samsung_cf.c b/drivers/ata/pata_samsung_cf.c
index f6facd6..431c7de 100644
--- a/drivers/ata/pata_samsung_cf.c
+++ b/drivers/ata/pata_samsung_cf.c
@@ -263,10 +263,10 @@ static u8 pata_s3c_check_altstatus(struct ata_port *ap)
/*
* pata_s3c_data_xfer - Transfer data by PIO
*/
-static unsigned int pata_s3c_data_xfer(struct ata_device *dev,
+static unsigned int pata_s3c_data_xfer(struct ata_queued_cmd *qc,
unsigned char *buf, unsigned int buflen, int rw)
{
- struct ata_port *ap = dev->link->ap;
+ struct ata_port *ap = qc->dev->link->ap;
struct s3c_ide_info *info = ap->host->private_data;
void __iomem *data_addr = ap->ioaddr.data_addr;
unsigned int words = buflen >> 1, i;
diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c
index f72d601..5d38245 100644
--- a/drivers/ata/sata_rcar.c
+++ b/drivers/ata/sata_rcar.c
@@ -447,11 +447,11 @@ static void sata_rcar_exec_command(struct ata_port *ap,
ata_sff_pause(ap);
}
-static unsigned int sata_rcar_data_xfer(struct ata_device *dev,
+static unsigned int sata_rcar_data_xfer(struct ata_queued_cmd *qc,
unsigned char *buf,
unsigned int buflen, int rw)
{
- struct ata_port *ap = dev->link->ap;
+ struct ata_port *ap = qc->dev->link->ap;
void __iomem *data_addr = ap->ioaddr.data_addr;
unsigned int words = buflen >> 1;
diff --git a/include/linux/libata.h b/include/linux/libata.h
index c170be5..0e8a800 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -968,7 +968,7 @@ struct ata_port_operations {
void (*sff_tf_read)(struct ata_port *ap, struct ata_taskfile *tf);
void (*sff_exec_command)(struct ata_port *ap,
const struct ata_taskfile *tf);
- unsigned int (*sff_data_xfer)(struct ata_device *dev,
+ unsigned int (*sff_data_xfer)(struct ata_queued_cmd *qc,
unsigned char *buf, unsigned int buflen, int rw);
void (*sff_irq_on)(struct ata_port *);
bool (*sff_irq_check)(struct ata_port *);
@@ -1823,11 +1823,11 @@ extern int ata_sff_busy_sleep(struct ata_port *ap,
extern void ata_sff_tf_read(struct ata_port *ap, struct ata_taskfile *tf);
extern void ata_sff_exec_command(struct ata_port *ap,
const struct ata_taskfile *tf);
-extern unsigned int ata_sff_data_xfer(struct ata_device *dev,
+extern unsigned int ata_sff_data_xfer(struct ata_queued_cmd *qc,
unsigned char *buf, unsigned int buflen, int rw);
-extern unsigned int ata_sff_data_xfer32(struct ata_device *dev,
+extern unsigned int ata_sff_data_xfer32(struct ata_queued_cmd *qc,
unsigned char *buf, unsigned int buflen, int rw);
-extern unsigned int ata_sff_data_xfer_noirq(struct ata_device *dev,
+extern unsigned int ata_sff_data_xfer_noirq(struct ata_queued_cmd *qc,
unsigned char *buf, unsigned int buflen, int rw);
extern void ata_sff_irq_on(struct ata_port *ap);
extern void ata_sff_irq_clear(struct ata_port *ap);
--
1.9.1
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