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[PATCH] libata: move err_mask to ata_queued_cmd 

- remove err_mask from the parameter list of the complete functions
  - move err_mask to ata_queued_cmd
  - initialize qc->err_mask when needed
  - for each function call to ata_qc_complete(), replace the err_mask parameter with qc->err_mask.

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>

===============
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Albert Lee 2005-12-05 15:38:02 +08:00 committed by Jeff Garzik
parent c14b8331ec
commit a22e2eb071
11 changed files with 86 additions and 56 deletions
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12
drivers/scsi/ahci.c
View File

@ -643,7 +643,8 @@ static void ahci_eng_timeout(struct ata_port *ap)
* not being called from the SCSI EH.
*/
qc->scsidone = scsi_finish_command;
ata_qc_complete(qc, AC_ERR_OTHER);
qc->err_mask |= AC_ERR_OTHER;
ata_qc_complete(qc);
}
spin_unlock_irqrestore(&host_set->lock, flags);
@ -664,7 +665,8 @@ static inline int ahci_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc)
ci = readl(port_mmio + PORT_CMD_ISSUE);
if (likely((ci & 0x1) == 0)) {
if (qc) {
ata_qc_complete(qc, 0);
assert(qc->err_mask == 0);
ata_qc_complete(qc);
qc = NULL;
}
}
@ -681,8 +683,10 @@ static inline int ahci_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc)
/* command processing has stopped due to error; restart */
ahci_restart_port(ap, status);
if (qc)
ata_qc_complete(qc, err_mask);
if (qc) {
qc->err_mask |= AC_ERR_OTHER;
ata_qc_complete(qc);
}
}
return 1;

32
drivers/scsi/libata-core.c
View File

@ -1053,9 +1053,9 @@ static int ata_qc_wait_err(struct ata_queued_cmd *qc,
if (wait_for_completion_timeout(wait, 30 * HZ) < 1) {
/* timeout handling */
unsigned int err_mask = ac_err_mask(ata_chk_status(qc->ap));
qc->err_mask |= ac_err_mask(ata_chk_status(qc->ap));
if (!err_mask) {
if (!qc->err_mask) {
printk(KERN_WARNING "ata%u: slow completion (cmd %x)\n",
qc->ap->id, qc->tf.command);
} else {
@ -1064,7 +1064,7 @@ static int ata_qc_wait_err(struct ata_queued_cmd *qc,
rc = -EIO;
}
ata_qc_complete(qc, err_mask);
ata_qc_complete(qc);
}
return rc;
@ -1175,6 +1175,7 @@ static void ata_dev_identify(struct ata_port *ap, unsigned int device)
qc->cursg_ofs = 0;
qc->cursect = 0;
qc->nsect = 1;
qc->err_mask = 0;
goto retry;
}
}
@ -2777,7 +2778,7 @@ static int ata_sg_setup(struct ata_queued_cmd *qc)
* None. (grabs host lock)
*/
void ata_poll_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask)
void ata_poll_qc_complete(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
unsigned long flags;
@ -2785,7 +2786,7 @@ void ata_poll_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask)
spin_lock_irqsave(&ap->host_set->lock, flags);
ap->flags &= ~ATA_FLAG_NOINTR;
ata_irq_on(ap);
ata_qc_complete(qc, err_mask);
ata_qc_complete(qc);
spin_unlock_irqrestore(&ap->host_set->lock, flags);
}
@ -2885,7 +2886,8 @@ static int ata_pio_complete (struct ata_port *ap)
ap->hsm_task_state = HSM_ST_IDLE;
ata_poll_qc_complete(qc, 0);
assert(qc->err_mask == 0);
ata_poll_qc_complete(qc);
/* another command may start at this point */
@ -3261,7 +3263,8 @@ static void ata_pio_error(struct ata_port *ap)
ap->hsm_task_state = HSM_ST_IDLE;
ata_poll_qc_complete(qc, AC_ERR_ATA_BUS);
qc->err_mask |= AC_ERR_ATA_BUS;
ata_poll_qc_complete(qc);
}
static void ata_pio_task(void *_data)
@ -3363,7 +3366,8 @@ static void ata_qc_timeout(struct ata_queued_cmd *qc)
ap->id, qc->tf.command, drv_stat, host_stat);
/* complete taskfile transaction */
ata_qc_complete(qc, ac_err_mask(drv_stat));
qc->err_mask |= ac_err_mask(drv_stat);
ata_qc_complete(qc);
break;
}
@ -3462,7 +3466,7 @@ struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
return qc;
}
int ata_qc_complete_noop(struct ata_queued_cmd *qc, unsigned int err_mask)
int ata_qc_complete_noop(struct ata_queued_cmd *qc)
{
return 0;
}
@ -3521,7 +3525,7 @@ void ata_qc_free(struct ata_queued_cmd *qc)
* spin_lock_irqsave(host_set lock)
*/
void ata_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask)
void ata_qc_complete(struct ata_queued_cmd *qc)
{
int rc;
@ -3538,7 +3542,7 @@ void ata_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask)
qc->flags &= ~ATA_QCFLAG_ACTIVE;
/* call completion callback */
rc = qc->complete_fn(qc, err_mask);
rc = qc->complete_fn(qc);
/* if callback indicates not to complete command (non-zero),
* return immediately
@ -3976,7 +3980,8 @@ inline unsigned int ata_host_intr (struct ata_port *ap,
ap->ops->irq_clear(ap);
/* complete taskfile transaction */
ata_qc_complete(qc, ac_err_mask(status));
qc->err_mask |= ac_err_mask(status);
ata_qc_complete(qc);
break;
default:
@ -4111,7 +4116,8 @@ static void atapi_packet_task(void *_data)
err_out_status:
status = ata_chk_status(ap);
err_out:
ata_poll_qc_complete(qc, __ac_err_mask(status));
qc->err_mask |= __ac_err_mask(status);
ata_poll_qc_complete(qc);
}

18
drivers/scsi/libata-scsi.c
View File

@ -1203,12 +1203,11 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm
return 1;
}
static int ata_scsi_qc_complete(struct ata_queued_cmd *qc,
unsigned int err_mask)
static int ata_scsi_qc_complete(struct ata_queued_cmd *qc)
{
struct scsi_cmnd *cmd = qc->scsicmd;
u8 *cdb = cmd->cmnd;
int need_sense = (err_mask != 0);
int need_sense = (qc->err_mask != 0);
/* For ATA pass thru (SAT) commands, generate a sense block if
* user mandated it or if there's an error. Note that if we
@ -1955,9 +1954,9 @@ void ata_scsi_badcmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *), u8
done(cmd);
}
static int atapi_sense_complete(struct ata_queued_cmd *qc,unsigned int err_mask)
static int atapi_sense_complete(struct ata_queued_cmd *qc)
{
if (err_mask && ((err_mask & AC_ERR_DEV) == 0))
if (qc->err_mask && ((qc->err_mask & AC_ERR_DEV) == 0))
/* FIXME: not quite right; we don't want the
* translation of taskfile registers into
* a sense descriptors, since that's only
@ -2015,15 +2014,18 @@ static void atapi_request_sense(struct ata_queued_cmd *qc)
qc->complete_fn = atapi_sense_complete;
if (ata_qc_issue(qc))
ata_qc_complete(qc, AC_ERR_OTHER);
if (ata_qc_issue(qc)) {
qc->err_mask |= AC_ERR_OTHER;
ata_qc_complete(qc);
}
DPRINTK("EXIT\n");
}
static int atapi_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask)
static int atapi_qc_complete(struct ata_queued_cmd *qc)
{
struct scsi_cmnd *cmd = qc->scsicmd;
unsigned int err_mask = qc->err_mask;
VPRINTK("ENTER, err_mask 0x%X\n", err_mask);

2
drivers/scsi/libata.h
View File

@ -39,7 +39,7 @@ struct ata_scsi_args {
/* libata-core.c */
extern int atapi_enabled;
extern int ata_qc_complete_noop(struct ata_queued_cmd *qc, unsigned int err_mask);
extern int ata_qc_complete_noop(struct ata_queued_cmd *qc);
extern struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
struct ata_device *dev);
extern void ata_rwcmd_protocol(struct ata_queued_cmd *qc);

11
drivers/scsi/pdc_adma.c
View File

@ -464,14 +464,12 @@ static inline unsigned int adma_intr_pkt(struct ata_host_set *host_set)
continue;
qc = ata_qc_from_tag(ap, ap->active_tag);
if (qc && (!(qc->tf.ctl & ATA_NIEN))) {
unsigned int err_mask = 0;
if ((status & (aPERR | aPSD | aUIRQ)))
err_mask = AC_ERR_OTHER;
qc->err_mask |= AC_ERR_OTHER;
else if (pp->pkt[0] != cDONE)
err_mask = AC_ERR_OTHER;
qc->err_mask |= AC_ERR_OTHER;
ata_qc_complete(qc, err_mask);
ata_qc_complete(qc);
}
}
return handled;
@ -501,7 +499,8 @@ static inline unsigned int adma_intr_mmio(struct ata_host_set *host_set)
/* complete taskfile transaction */
pp->state = adma_state_idle;
ata_qc_complete(qc, ac_err_mask(status));
qc->err_mask |= ac_err_mask(status);
ata_qc_complete(qc);
handled = 1;
}
}

9
drivers/scsi/sata_mv.c
View File

@ -1242,8 +1242,10 @@ static void mv_host_intr(struct ata_host_set *host_set, u32 relevant,
VPRINTK("port %u IRQ found for qc, "
"ata_status 0x%x\n", port,ata_status);
/* mark qc status appropriately */
if (!(qc->tf.ctl & ATA_NIEN))
ata_qc_complete(qc, err_mask);
if (!(qc->tf.ctl & ATA_NIEN)) {
qc->err_mask |= err_mask;
ata_qc_complete(qc);
}
}
}
}
@ -1864,7 +1866,8 @@ static void mv_eng_timeout(struct ata_port *ap)
*/
spin_lock_irqsave(&ap->host_set->lock, flags);
qc->scsidone = scsi_finish_command;
ata_qc_complete(qc, AC_ERR_OTHER);
qc->err_mask |= AC_ERR_OTHER;
ata_qc_complete(qc);
spin_unlock_irqrestore(&ap->host_set->lock, flags);
}
}

14
drivers/scsi/sata_promise.c
View File

@ -401,7 +401,8 @@ static void pdc_eng_timeout(struct ata_port *ap)
case ATA_PROT_NODATA:
printk(KERN_ERR "ata%u: command timeout\n", ap->id);
drv_stat = ata_wait_idle(ap);
ata_qc_complete(qc, __ac_err_mask(drv_stat));
qc->err_mask |= __ac_err_mask(drv_stat);
ata_qc_complete(qc);
break;
default:
@ -410,7 +411,8 @@ static void pdc_eng_timeout(struct ata_port *ap)
printk(KERN_ERR "ata%u: unknown timeout, cmd 0x%x stat 0x%x\n",
ap->id, qc->tf.command, drv_stat);
ata_qc_complete(qc, ac_err_mask(drv_stat));
qc->err_mask |= ac_err_mask(drv_stat);
ata_qc_complete(qc);
break;
}
@ -422,21 +424,21 @@ static void pdc_eng_timeout(struct ata_port *ap)
static inline unsigned int pdc_host_intr( struct ata_port *ap,
struct ata_queued_cmd *qc)
{
unsigned int handled = 0, err_mask = 0;
unsigned int handled = 0;
u32 tmp;
void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_GLOBAL_CTL;
tmp = readl(mmio);
if (tmp & PDC_ERR_MASK) {
err_mask = AC_ERR_DEV;
qc->err_mask |= AC_ERR_DEV;
pdc_reset_port(ap);
}
switch (qc->tf.protocol) {
case ATA_PROT_DMA:
case ATA_PROT_NODATA:
err_mask |= ac_err_mask(ata_wait_idle(ap));
ata_qc_complete(qc, err_mask);
qc->err_mask |= ac_err_mask(ata_wait_idle(ap));
ata_qc_complete(qc);
handled = 1;
break;

7
drivers/scsi/sata_qstor.c
View File

@ -409,8 +409,8 @@ static inline unsigned int qs_intr_pkt(struct ata_host_set *host_set)
case 3: /* device error */
pp->state = qs_state_idle;
qs_enter_reg_mode(qc->ap);
ata_qc_complete(qc,
ac_err_mask(sDST));
qc->err_mask |= ac_err_mask(sDST);
ata_qc_complete(qc);
break;
default:
break;
@ -447,7 +447,8 @@ static inline unsigned int qs_intr_mmio(struct ata_host_set *host_set)
/* complete taskfile transaction */
pp->state = qs_state_idle;
ata_qc_complete(qc, ac_err_mask(status));
qc->err_mask |= ac_err_mask(status);
ata_qc_complete(qc);
handled = 1;
}
}

15
drivers/scsi/sata_sil24.c
View File

@ -654,7 +654,8 @@ static void sil24_eng_timeout(struct ata_port *ap)
*/
printk(KERN_ERR "ata%u: command timeout\n", ap->id);
qc->scsidone = scsi_finish_command;
ata_qc_complete(qc, AC_ERR_OTHER);
qc->err_mask |= AC_ERR_OTHER;
ata_qc_complete(qc);
sil24_reset_controller(ap);
}
@ -711,8 +712,10 @@ static void sil24_error_intr(struct ata_port *ap, u32 slot_stat)
sil24_reset_controller(ap);
}
if (qc)
ata_qc_complete(qc, err_mask);
if (qc) {
qc->err_mask |= err_mask;
ata_qc_complete(qc);
}
}
static inline void sil24_host_intr(struct ata_port *ap)
@ -734,8 +737,10 @@ static inline void sil24_host_intr(struct ata_port *ap)
*/
sil24_update_tf(ap);
if (qc)
ata_qc_complete(qc, ac_err_mask(pp->tf.command));
if (qc) {
qc->err_mask |= ac_err_mask(pp->tf.command);
ata_qc_complete(qc);
}
} else
sil24_error_intr(ap, slot_stat);
}

15
drivers/scsi/sata_sx4.c
View File

@ -718,7 +718,8 @@ static inline unsigned int pdc20621_host_intr( struct ata_port *ap,
VPRINTK("ata%u: read hdma, 0x%x 0x%x\n", ap->id,
readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT));
/* get drive status; clear intr; complete txn */
ata_qc_complete(qc, ac_err_mask(ata_wait_idle(ap)));
qc->err_mask |= ac_err_mask(ata_wait_idle(ap));
ata_qc_complete(qc);
pdc20621_pop_hdma(qc);
}
@ -756,7 +757,8 @@ static inline unsigned int pdc20621_host_intr( struct ata_port *ap,
VPRINTK("ata%u: write ata, 0x%x 0x%x\n", ap->id,
readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT));
/* get drive status; clear intr; complete txn */
ata_qc_complete(qc, ac_err_mask(ata_wait_idle(ap)));
qc->err_mask |= ac_err_mask(ata_wait_idle(ap));
ata_qc_complete(qc);
pdc20621_pop_hdma(qc);
}
handled = 1;
@ -766,7 +768,8 @@ static inline unsigned int pdc20621_host_intr( struct ata_port *ap,
status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
DPRINTK("BUS_NODATA (drv_stat 0x%X)\n", status);
ata_qc_complete(qc, ac_err_mask(status));
qc->err_mask |= ac_err_mask(status);
ata_qc_complete(qc);
handled = 1;
} else {
@ -881,7 +884,8 @@ static void pdc_eng_timeout(struct ata_port *ap)
case ATA_PROT_DMA:
case ATA_PROT_NODATA:
printk(KERN_ERR "ata%u: command timeout\n", ap->id);
ata_qc_complete(qc, __ac_err_mask(ata_wait_idle(ap)));
qc->err_mask |= __ac_err_mask(ata_wait_idle(ap));
ata_qc_complete(qc);
break;
default:
@ -890,7 +894,8 @@ static void pdc_eng_timeout(struct ata_port *ap)
printk(KERN_ERR "ata%u: unknown timeout, cmd 0x%x stat 0x%x\n",
ap->id, qc->tf.command, drv_stat);
ata_qc_complete(qc, ac_err_mask(drv_stat));
qc->err_mask |= ac_err_mask(drv_stat);
ata_qc_complete(qc);
break;
}

7
include/linux/libata.h
View File

@ -194,7 +194,7 @@ struct ata_port;
struct ata_queued_cmd;
/* typedefs */
typedef int (*ata_qc_cb_t) (struct ata_queued_cmd *qc, unsigned int err_mask);
typedef int (*ata_qc_cb_t) (struct ata_queued_cmd *qc);
struct ata_ioports {
unsigned long cmd_addr;
@ -279,6 +279,8 @@ struct ata_queued_cmd {
/* DO NOT iterate over __sg manually, use ata_for_each_sg() */
struct scatterlist *__sg;
unsigned int err_mask;
ata_qc_cb_t complete_fn;
struct completion *waiting;
@ -475,7 +477,7 @@ extern void ata_bmdma_start (struct ata_queued_cmd *qc);
extern void ata_bmdma_stop(struct ata_queued_cmd *qc);
extern u8 ata_bmdma_status(struct ata_port *ap);
extern void ata_bmdma_irq_clear(struct ata_port *ap);
extern void ata_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask);
extern void ata_qc_complete(struct ata_queued_cmd *qc);
extern void ata_eng_timeout(struct ata_port *ap);
extern void ata_scsi_simulate(u16 *id, struct scsi_cmnd *cmd,
void (*done)(struct scsi_cmnd *));
@ -667,6 +669,7 @@ static inline void ata_qc_reinit(struct ata_queued_cmd *qc)
qc->cursect = qc->cursg = qc->cursg_ofs = 0;
qc->nsect = 0;
qc->nbytes = qc->curbytes = 0;
qc->err_mask = 0;
ata_tf_init(qc->ap, &qc->tf, qc->dev->devno);
}