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ide: pass command instead of request to ide_pio_datablock()

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* Add IDE_TFLAG_FS taskfile flag and set it for REQ_TYPE_FS requests.

* Convert ->{in,out}put_data methods to take command instead of request
  as an argument.  Then convert pre_task_out_intr(), task_end_request(),
  task_error(), task_in_unexpected(), ide_pio_sector(), ide_pio_multi()
  and ide_pio_datablock() in similar way.

* Rename task_end_request() to ide_finish_cmd().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2009-03-27 12:46:38 +01:00
parent 22aa4b32a1
commit adb1af9803
12 changed files with 76 additions and 75 deletions
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4
drivers/ide/at91_ide.c
View file

@ -143,7 +143,7 @@ static void apply_timings(const u8 chipselect, const u8 pio,
set_smc_timings(chipselect, cycle, setup, pulse, data_float, use_iordy);
}
static void at91_ide_input_data(ide_drive_t *drive, struct request *rq,
static void at91_ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
void *buf, unsigned int len)
{
ide_hwif_t *hwif = drive->hwif;
@ -160,7 +160,7 @@ static void at91_ide_input_data(ide_drive_t *drive, struct request *rq,
leave_16bit(chipselect, mode);
}
static void at91_ide_output_data(ide_drive_t *drive, struct request *rq,
static void at91_ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
void *buf, unsigned int len)
{
ide_hwif_t *hwif = drive->hwif;

4
drivers/ide/au1xxx-ide.c
View file

@ -86,13 +86,13 @@ void auide_outsw(unsigned long port, void *addr, u32 count)
ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp);
}
static void au1xxx_input_data(ide_drive_t *drive, struct request *rq,
static void au1xxx_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
void *buf, unsigned int len)
{
auide_insw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
}
static void au1xxx_output_data(ide_drive_t *drive, struct request *rq,
static void au1xxx_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
void *buf, unsigned int len)
{
auide_outsw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);

8
drivers/ide/falconide.c
View file

@ -62,23 +62,23 @@ static void falconide_get_lock(irq_handler_t handler, void *data)
}
}
static void falconide_input_data(ide_drive_t *drive, struct request *rq,
static void falconide_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
void *buf, unsigned int len)
{
unsigned long data_addr = drive->hwif->io_ports.data_addr;
if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS)
if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS))
return insw(data_addr, buf, (len + 1) / 2);
raw_insw_swapw((u16 *)data_addr, buf, (len + 1) / 2);
}
static void falconide_output_data(ide_drive_t *drive, struct request *rq,
static void falconide_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
void *buf, unsigned int len)
{
unsigned long data_addr = drive->hwif->io_ports.data_addr;
if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS)
if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS))
return outsw(data_addr, buf, (len + 1) / 2);
raw_outsw_swapw((u16 *)data_addr, buf, (len + 1) / 2);

2
drivers/ide/ide-disk.c
View file

@ -156,6 +156,8 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
tf->device = head;
}
cmd.tf_flags |= IDE_TFLAG_FS;
if (rq_data_dir(rq))
cmd.tf_flags |= IDE_TFLAG_WRITE;

4
drivers/ide/ide-dma.c
View file

@ -96,9 +96,9 @@ ide_startstop_t ide_dma_intr(ide_drive_t *drive)
if (OK_STAT(stat, DRIVE_READY, drive->bad_wstat | ATA_DRQ)) {
if (!dma_stat) {
struct request *rq = hwif->rq;
struct ide_cmd *cmd = &hwif->cmd;
task_end_request(drive, rq, stat);
ide_finish_cmd(drive, cmd, stat);
return ide_stopped;
}
printk(KERN_ERR "%s: %s: bad DMA status (0x%02x)\n",

4
drivers/ide/ide-h8300.c
View file

@ -143,13 +143,13 @@ static void mm_insw(unsigned long addr, void *buf, u32 len)
*bp = bswap(*(volatile u16 *)addr);
}
static void h8300_input_data(ide_drive_t *drive, struct request *rq,
static void h8300_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
void *buf, unsigned int len)
{
mm_insw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
}
static void h8300_output_data(ide_drive_t *drive, struct request *rq,
static void h8300_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
void *buf, unsigned int len)
{
mm_outsw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);

4
drivers/ide/ide-io-std.c
View file

@ -219,7 +219,7 @@ static void ata_vlb_sync(unsigned long port)
* so if an odd len is specified, be sure that there's at least one
* extra byte allocated for the buffer.
*/
void ide_input_data(ide_drive_t *drive, struct request *rq, void *buf,
void ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf,
unsigned int len)
{
ide_hwif_t *hwif = drive->hwif;
@ -265,7 +265,7 @@ EXPORT_SYMBOL_GPL(ide_input_data);
/*
* This is used for most PIO data transfers *to* the IDE interface
*/
void ide_output_data(ide_drive_t *drive, struct request *rq, void *buf,
void ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf,
unsigned int len)
{
ide_hwif_t *hwif = drive->hwif;

88
drivers/ide/ide-taskfile.c
View file

@ -54,19 +54,20 @@ int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf)
}
static ide_startstop_t task_no_data_intr(ide_drive_t *);
static ide_startstop_t pre_task_out_intr(ide_drive_t *, struct request *);
static ide_startstop_t pre_task_out_intr(ide_drive_t *, struct ide_cmd *);
static ide_startstop_t task_in_intr(ide_drive_t *);
ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd)
ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
{
ide_hwif_t *hwif = drive->hwif;
struct ide_cmd *cmd = &hwif->cmd;
struct ide_taskfile *tf = &cmd->tf;
ide_handler_t *handler = NULL;
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
const struct ide_dma_ops *dma_ops = hwif->dma_ops;
if (cmd->data_phase == TASKFILE_MULTI_IN ||
cmd->data_phase == TASKFILE_MULTI_OUT) {
if (orig_cmd->data_phase == TASKFILE_MULTI_IN ||
orig_cmd->data_phase == TASKFILE_MULTI_OUT) {
if (!drive->mult_count) {
printk(KERN_ERR "%s: multimode not set!\n",
drive->name);
@ -74,10 +75,10 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd)
}
}
if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
cmd->ftf_flags |= IDE_FTFLAG_SET_IN_FLAGS;
if (orig_cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
orig_cmd->ftf_flags |= IDE_FTFLAG_SET_IN_FLAGS;
memcpy(&hwif->cmd, cmd, sizeof(*cmd));
memcpy(cmd, orig_cmd, sizeof(*cmd));
if ((cmd->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) {
ide_tf_dump(drive->name, tf);
@ -91,7 +92,7 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd)
case TASKFILE_OUT:
tp_ops->exec_command(hwif, tf->command);
ndelay(400); /* FIXME */
return pre_task_out_intr(drive, cmd->rq);
return pre_task_out_intr(drive, cmd);
case TASKFILE_MULTI_IN:
case TASKFILE_IN:
handler = task_in_intr;
@ -203,7 +204,7 @@ static u8 wait_drive_not_busy(ide_drive_t *drive)
return stat;
}
static void ide_pio_sector(ide_drive_t *drive, struct request *rq,
static void ide_pio_sector(ide_drive_t *drive, struct ide_cmd *cmd,
unsigned int write)
{
ide_hwif_t *hwif = drive->hwif;
@ -244,9 +245,9 @@ static void ide_pio_sector(ide_drive_t *drive, struct request *rq,
/* do the actual data transfer */
if (write)
hwif->tp_ops->output_data(drive, rq, buf, SECTOR_SIZE);
hwif->tp_ops->output_data(drive, cmd, buf, SECTOR_SIZE);
else
hwif->tp_ops->input_data(drive, rq, buf, SECTOR_SIZE);
hwif->tp_ops->input_data(drive, cmd, buf, SECTOR_SIZE);
kunmap_atomic(buf, KM_BIO_SRC_IRQ);
#ifdef CONFIG_HIGHMEM
@ -254,24 +255,23 @@ static void ide_pio_sector(ide_drive_t *drive, struct request *rq,
#endif
}
static void ide_pio_multi(ide_drive_t *drive, struct request *rq,
static void ide_pio_multi(ide_drive_t *drive, struct ide_cmd *cmd,
unsigned int write)
{
unsigned int nsect;
nsect = min_t(unsigned int, drive->hwif->nleft, drive->mult_count);
while (nsect--)
ide_pio_sector(drive, rq, write);
ide_pio_sector(drive, cmd, write);
}
static void ide_pio_datablock(ide_drive_t *drive, struct request *rq,
unsigned int write)
static void ide_pio_datablock(ide_drive_t *drive, struct ide_cmd *cmd,
unsigned int write)
{
struct ide_cmd *cmd = &drive->hwif->cmd;
u8 saved_io_32bit = drive->io_32bit;
if (blk_fs_request(rq))
rq->errors = 0;
if (cmd->tf_flags & IDE_TFLAG_FS)
cmd->rq->errors = 0;
if (cmd->tf_flags & IDE_TFLAG_IO_16BIT)
drive->io_32bit = 0;
@ -281,22 +281,21 @@ static void ide_pio_datablock(ide_drive_t *drive, struct request *rq,
switch (cmd->data_phase) {
case TASKFILE_MULTI_IN:
case TASKFILE_MULTI_OUT:
ide_pio_multi(drive, rq, write);
ide_pio_multi(drive, cmd, write);
break;
default:
ide_pio_sector(drive, rq, write);
ide_pio_sector(drive, cmd, write);
break;
}
drive->io_32bit = saved_io_32bit;
}
static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq,
static ide_startstop_t task_error(ide_drive_t *drive, struct ide_cmd *cmd,
const char *s, u8 stat)
{
if (blk_fs_request(rq)) {
if (cmd->tf_flags & IDE_TFLAG_FS) {
ide_hwif_t *hwif = drive->hwif;
struct ide_cmd *cmd = &hwif->cmd;
int sectors = hwif->nsect - hwif->nleft;
switch (cmd->data_phase) {
@ -323,19 +322,17 @@ static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq,
return ide_error(drive, s, stat);
}
void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat)
void ide_finish_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat)
{
if (blk_fs_request(rq) == 0) {
struct ide_cmd *cmd = rq->special;
if ((cmd->tf_flags & IDE_TFLAG_FS) == 0) {
u8 err = ide_read_error(drive);
if (cmd)
ide_complete_cmd(drive, cmd, stat, err);
ide_complete_cmd(drive, cmd, stat, err);
ide_complete_rq(drive, err);
return;
}
ide_end_request(drive, 1, rq->nr_sectors);
ide_end_request(drive, 1, cmd->rq->nr_sectors);
}
/*
@ -344,11 +341,12 @@ void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat)
* It might be a spurious irq (shared irq), but it might be a
* command that had no output.
*/
static ide_startstop_t task_in_unexpected(ide_drive_t *drive, struct request *rq, u8 stat)
static ide_startstop_t task_in_unexpected(ide_drive_t *drive,
struct ide_cmd *cmd, u8 stat)
{
/* Command all done? */
if (OK_STAT(stat, ATA_DRDY, ATA_BUSY)) {
task_end_request(drive, rq, stat);
ide_finish_cmd(drive, cmd, stat);
return ide_stopped;
}
@ -363,25 +361,25 @@ static ide_startstop_t task_in_unexpected(ide_drive_t *drive, struct request *rq
static ide_startstop_t task_in_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
struct request *rq = hwif->rq;
struct ide_cmd *cmd = &drive->hwif->cmd;
u8 stat = hwif->tp_ops->read_status(hwif);
/* Error? */
if (stat & ATA_ERR)
return task_error(drive, rq, __func__, stat);
return task_error(drive, cmd, __func__, stat);
/* Didn't want any data? Odd. */
if ((stat & ATA_DRQ) == 0)
return task_in_unexpected(drive, rq, stat);
return task_in_unexpected(drive, cmd, stat);
ide_pio_datablock(drive, rq, 0);
ide_pio_datablock(drive, cmd, 0);
/* Are we done? Check status and finish transfer. */
if (!hwif->nleft) {
stat = wait_drive_not_busy(drive);
if (!OK_STAT(stat, 0, BAD_STAT))
return task_error(drive, rq, __func__, stat);
task_end_request(drive, rq, stat);
return task_error(drive, cmd, __func__, stat);
ide_finish_cmd(drive, cmd, stat);
return ide_stopped;
}
@ -397,31 +395,31 @@ static ide_startstop_t task_in_intr(ide_drive_t *drive)
static ide_startstop_t task_out_intr (ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
struct request *rq = hwif->rq;
struct ide_cmd *cmd = &drive->hwif->cmd;
u8 stat = hwif->tp_ops->read_status(hwif);
if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat))
return task_error(drive, rq, __func__, stat);
return task_error(drive, cmd, __func__, stat);
/* Deal with unexpected ATA data phase. */
if (((stat & ATA_DRQ) == 0) ^ !hwif->nleft)
return task_error(drive, rq, __func__, stat);
return task_error(drive, cmd, __func__, stat);
if (!hwif->nleft) {
task_end_request(drive, rq, stat);
ide_finish_cmd(drive, cmd, stat);
return ide_stopped;
}
/* Still data left to transfer. */
ide_pio_datablock(drive, rq, 1);
ide_pio_datablock(drive, cmd, 1);
ide_set_handler(drive, &task_out_intr, WAIT_WORSTCASE, NULL);
return ide_started;
}
static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq)
static ide_startstop_t pre_task_out_intr(ide_drive_t *drive,
struct ide_cmd *cmd)
{
struct ide_cmd *cmd = &drive->hwif->cmd;
ide_startstop_t startstop;
if (ide_wait_stat(&startstop, drive, ATA_DRQ,
@ -437,7 +435,7 @@ static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq)
local_irq_disable();
ide_set_handler(drive, &task_out_intr, WAIT_WORSTCASE, NULL);
ide_pio_datablock(drive, rq, 1);
ide_pio_datablock(drive, cmd, 1);
return ide_started;
}

8
drivers/ide/q40ide.c
View file

@ -72,23 +72,23 @@ static void q40_ide_setup_ports(hw_regs_t *hw, unsigned long base,
hw->chipset = ide_generic;
}
static void q40ide_input_data(ide_drive_t *drive, struct request *rq,
static void q40ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
void *buf, unsigned int len)
{
unsigned long data_addr = drive->hwif->io_ports.data_addr;
if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS)
if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS))
return insw(data_addr, buf, (len + 1) / 2);
raw_insw_swapw((u16 *)data_addr, buf, (len + 1) / 2);
}
static void q40ide_output_data(ide_drive_t *drive, struct request *rq,
static void q40ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
void *buf, unsigned int len)
{
unsigned long data_addr = drive->hwif->io_ports.data_addr;
if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS)
if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS))
return outsw(data_addr, buf, (len + 1) / 2);
raw_outsw_swapw((u16 *)data_addr, buf, (len + 1) / 2);

4
drivers/ide/scc_pata.c
View file

@ -750,7 +750,7 @@ static void scc_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
}
}
static void scc_input_data(ide_drive_t *drive, struct request *rq,
static void scc_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
void *buf, unsigned int len)
{
unsigned long data_addr = drive->hwif->io_ports.data_addr;
@ -766,7 +766,7 @@ static void scc_input_data(ide_drive_t *drive, struct request *rq,
scc_ide_insw(data_addr, buf, len / 2);
}
static void scc_output_data(ide_drive_t *drive, struct request *rq,
static void scc_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
void *buf, unsigned int len)
{
unsigned long data_addr = drive->hwif->io_ports.data_addr;

4
drivers/ide/tx4938ide.c
View file

@ -174,7 +174,7 @@ static void tx4938ide_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
}
}
static void tx4938ide_input_data_swap(ide_drive_t *drive, struct request *rq,
static void tx4938ide_input_data_swap(ide_drive_t *drive, struct ide_cmd *cmd,
void *buf, unsigned int len)
{
unsigned long port = drive->hwif->io_ports.data_addr;
@ -186,7 +186,7 @@ static void tx4938ide_input_data_swap(ide_drive_t *drive, struct request *rq,
__ide_flush_dcache_range((unsigned long)buf, roundup(len, 2));
}
static void tx4938ide_output_data_swap(ide_drive_t *drive, struct request *rq,
static void tx4938ide_output_data_swap(ide_drive_t *drive, struct ide_cmd *cmd,
void *buf, unsigned int len)
{
unsigned long port = drive->hwif->io_ports.data_addr;

17
include/linux/ide.h
View file

@ -297,6 +297,7 @@ enum {
IDE_TFLAG_IO_16BIT = (1 << 26),
/* struct ide_cmd was allocated using kmalloc() */
IDE_TFLAG_DYN = (1 << 27),
IDE_TFLAG_FS = (1 << 28),
};
enum {
@ -655,10 +656,10 @@ struct ide_tp_ops {
void (*tf_load)(ide_drive_t *, struct ide_cmd *);
void (*tf_read)(ide_drive_t *, struct ide_cmd *);
void (*input_data)(ide_drive_t *, struct request *, void *,
unsigned int);
void (*output_data)(ide_drive_t *, struct request *, void *,
unsigned int);
void (*input_data)(ide_drive_t *, struct ide_cmd *,
void *, unsigned int);
void (*output_data)(ide_drive_t *, struct ide_cmd *,
void *, unsigned int);
};
extern const struct ide_tp_ops default_tp_ops;
@ -866,7 +867,7 @@ typedef ide_startstop_t (ide_handler_t)(ide_drive_t *);
typedef int (ide_expiry_t)(ide_drive_t *);
/* used by ide-cd, ide-floppy, etc. */
typedef void (xfer_func_t)(ide_drive_t *, struct request *rq, void *, unsigned);
typedef void (xfer_func_t)(ide_drive_t *, struct ide_cmd *, void *, unsigned);
extern struct mutex ide_setting_mtx;
@ -1175,8 +1176,8 @@ void ide_set_irq(ide_hwif_t *, int);
void ide_tf_load(ide_drive_t *, struct ide_cmd *);
void ide_tf_read(ide_drive_t *, struct ide_cmd *);
void ide_input_data(ide_drive_t *, struct request *, void *, unsigned int);
void ide_output_data(ide_drive_t *, struct request *, void *, unsigned int);
void ide_input_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int);
void ide_output_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int);
int ide_io_buffers(ide_drive_t *, struct ide_atapi_pc *, unsigned int, int);
@ -1226,7 +1227,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *);
ide_startstop_t do_rw_taskfile(ide_drive_t *, struct ide_cmd *);
void task_end_request(ide_drive_t *, struct request *, u8);
void ide_finish_cmd(ide_drive_t *, struct ide_cmd *, u8);
int ide_raw_taskfile(ide_drive_t *, struct ide_cmd *, u8 *, u16);
int ide_no_data_taskfile(ide_drive_t *, struct ide_cmd *);