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[PATCH] libata: return AC_ERR_* from issue functions

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Return AC_ERR_* mask from issue fuctions instead of 0/-1.  This
enables things like failing a qc with AC_ERR_HSM when the device
doesn't set DRDY when the qc is about to be issued.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Tejun Heo 2006-01-23 13:09:36 +09:00 committed by Jeff Garzik
parent 11a56d2439
commit 9a3d9eb017
11 changed files with 29 additions and 32 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/scsi/ahci.c
View file

@ -184,7 +184,7 @@ struct ahci_port_priv {
static u32 ahci_scr_read (struct ata_port *ap, unsigned int sc_reg);
static void ahci_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
static int ahci_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
static int ahci_qc_issue(struct ata_queued_cmd *qc);
static unsigned int ahci_qc_issue(struct ata_queued_cmd *qc);
static irqreturn_t ahci_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
static void ahci_phy_reset(struct ata_port *ap);
static void ahci_irq_clear(struct ata_port *ap);
@ -800,7 +800,7 @@ static irqreturn_t ahci_interrupt (int irq, void *dev_instance, struct pt_regs *
return IRQ_RETVAL(handled);
}
static int ahci_qc_issue(struct ata_queued_cmd *qc)
static unsigned int ahci_qc_issue(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
void __iomem *port_mmio = (void __iomem *) ap->ioaddr.cmd_addr;

17
drivers/scsi/libata-core.c
View file

@ -1125,10 +1125,9 @@ ata_exec_internal(struct ata_port *ap, struct ata_device *dev,
qc->private_data = &wait;
qc->complete_fn = ata_qc_complete_internal;
if (ata_qc_issue(qc)) {
qc->err_mask = AC_ERR_OTHER;
qc->err_mask = ata_qc_issue(qc);
if (qc->err_mask)
ata_qc_complete(qc);
}
spin_unlock_irqrestore(&ap->host_set->lock, flags);
@ -3674,10 +3673,10 @@ static inline int ata_should_dma_map(struct ata_queued_cmd *qc)
* spin_lock_irqsave(host_set lock)
*
* RETURNS:
* Zero on success, negative on error.
* Zero on success, AC_ERR_* mask on failure
*/
int ata_qc_issue(struct ata_queued_cmd *qc)
unsigned int ata_qc_issue(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
@ -3702,7 +3701,7 @@ int ata_qc_issue(struct ata_queued_cmd *qc)
sg_err:
qc->flags &= ~ATA_QCFLAG_DMAMAP;
return -1;
return AC_ERR_SYSTEM;
}
@ -3721,10 +3720,10 @@ sg_err:
* spin_lock_irqsave(host_set lock)
*
* RETURNS:
* Zero on success, negative on error.
* Zero on success, AC_ERR_* mask on failure
*/
int ata_qc_issue_prot(struct ata_queued_cmd *qc)
unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
@ -3769,7 +3768,7 @@ int ata_qc_issue_prot(struct ata_queued_cmd *qc)
default:
WARN_ON(1);
return -1;
return AC_ERR_SYSTEM;
}
return 0;

10
drivers/scsi/libata-scsi.c
View file

@ -1322,10 +1322,9 @@ static void ata_scsi_translate(struct ata_port *ap, struct ata_device *dev,
goto early_finish;
/* select device, send command to hardware */
if (ata_qc_issue(qc)) {
qc->err_mask |= AC_ERR_OTHER;
qc->err_mask = ata_qc_issue(qc);
if (qc->err_mask)
ata_qc_complete(qc);
}
VPRINTK("EXIT\n");
return;
@ -2044,10 +2043,9 @@ static void atapi_request_sense(struct ata_queued_cmd *qc)
qc->complete_fn = atapi_sense_complete;
if (ata_qc_issue(qc)) {
qc->err_mask |= AC_ERR_OTHER;
qc->err_mask = ata_qc_issue(qc);
if (qc->err_mask)
ata_qc_complete(qc);
}
DPRINTK("EXIT\n");
}

2
drivers/scsi/libata.h
View file

@ -45,7 +45,7 @@ extern struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
struct ata_device *dev);
extern int ata_rwcmd_protocol(struct ata_queued_cmd *qc);
extern void ata_qc_free(struct ata_queued_cmd *qc);
extern int ata_qc_issue(struct ata_queued_cmd *qc);
extern unsigned int ata_qc_issue(struct ata_queued_cmd *qc);
extern int ata_check_atapi_dma(struct ata_queued_cmd *qc);
extern void ata_dev_select(struct ata_port *ap, unsigned int device,
unsigned int wait, unsigned int can_sleep);

4
drivers/scsi/pdc_adma.c
View file

@ -131,7 +131,7 @@ static void adma_host_stop(struct ata_host_set *host_set);
static void adma_port_stop(struct ata_port *ap);
static void adma_phy_reset(struct ata_port *ap);
static void adma_qc_prep(struct ata_queued_cmd *qc);
static int adma_qc_issue(struct ata_queued_cmd *qc);
static unsigned int adma_qc_issue(struct ata_queued_cmd *qc);
static int adma_check_atapi_dma(struct ata_queued_cmd *qc);
static void adma_bmdma_stop(struct ata_queued_cmd *qc);
static u8 adma_bmdma_status(struct ata_port *ap);
@ -419,7 +419,7 @@ static inline void adma_packet_start(struct ata_queued_cmd *qc)
writew(aPIOMD4 | aGO, chan + ADMA_CONTROL);
}
static int adma_qc_issue(struct ata_queued_cmd *qc)
static unsigned int adma_qc_issue(struct ata_queued_cmd *qc)
{
struct adma_port_priv *pp = qc->ap->private_data;

4
drivers/scsi/sata_mv.c
View file

@ -328,7 +328,7 @@ static void mv_host_stop(struct ata_host_set *host_set);
static int mv_port_start(struct ata_port *ap);
static void mv_port_stop(struct ata_port *ap);
static void mv_qc_prep(struct ata_queued_cmd *qc);
static int mv_qc_issue(struct ata_queued_cmd *qc);
static unsigned int mv_qc_issue(struct ata_queued_cmd *qc);
static irqreturn_t mv_interrupt(int irq, void *dev_instance,
struct pt_regs *regs);
static void mv_eng_timeout(struct ata_port *ap);
@ -1040,7 +1040,7 @@ static void mv_qc_prep(struct ata_queued_cmd *qc)
* LOCKING:
* Inherited from caller.
*/
static int mv_qc_issue(struct ata_queued_cmd *qc)
static unsigned int mv_qc_issue(struct ata_queued_cmd *qc)
{
void __iomem *port_mmio = mv_ap_base(qc->ap);
struct mv_port_priv *pp = qc->ap->private_data;

4
drivers/scsi/sata_promise.c
View file

@ -95,7 +95,7 @@ static void pdc_qc_prep(struct ata_queued_cmd *qc);
static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
static void pdc_irq_clear(struct ata_port *ap);
static int pdc_qc_issue_prot(struct ata_queued_cmd *qc);
static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc);
static struct scsi_host_template pdc_ata_sht = {
@ -544,7 +544,7 @@ static inline void pdc_packet_start(struct ata_queued_cmd *qc)
readl((void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); /* flush */
}
static int pdc_qc_issue_prot(struct ata_queued_cmd *qc)
static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc)
{
switch (qc->tf.protocol) {
case ATA_PROT_DMA:

4
drivers/scsi/sata_qstor.c
View file

@ -120,7 +120,7 @@ static void qs_host_stop(struct ata_host_set *host_set);
static void qs_port_stop(struct ata_port *ap);
static void qs_phy_reset(struct ata_port *ap);
static void qs_qc_prep(struct ata_queued_cmd *qc);
static int qs_qc_issue(struct ata_queued_cmd *qc);
static unsigned int qs_qc_issue(struct ata_queued_cmd *qc);
static int qs_check_atapi_dma(struct ata_queued_cmd *qc);
static void qs_bmdma_stop(struct ata_queued_cmd *qc);
static u8 qs_bmdma_status(struct ata_port *ap);
@ -352,7 +352,7 @@ static inline void qs_packet_start(struct ata_queued_cmd *qc)
readl(chan + QS_CCT_CFF); /* flush */
}
static int qs_qc_issue(struct ata_queued_cmd *qc)
static unsigned int qs_qc_issue(struct ata_queued_cmd *qc)
{
struct qs_port_priv *pp = qc->ap->private_data;

4
drivers/scsi/sata_sil24.c
View file

@ -251,7 +251,7 @@ static void sil24_scr_write(struct ata_port *ap, unsigned sc_reg, u32 val);
static void sil24_tf_read(struct ata_port *ap, struct ata_taskfile *tf);
static void sil24_phy_reset(struct ata_port *ap);
static void sil24_qc_prep(struct ata_queued_cmd *qc);
static int sil24_qc_issue(struct ata_queued_cmd *qc);
static unsigned int sil24_qc_issue(struct ata_queued_cmd *qc);
static void sil24_irq_clear(struct ata_port *ap);
static void sil24_eng_timeout(struct ata_port *ap);
static irqreturn_t sil24_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
@ -557,7 +557,7 @@ static void sil24_qc_prep(struct ata_queued_cmd *qc)
sil24_fill_sg(qc, sge);
}
static int sil24_qc_issue(struct ata_queued_cmd *qc)
static unsigned int sil24_qc_issue(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
void __iomem *port = (void __iomem *)ap->ioaddr.cmd_addr;

4
drivers/scsi/sata_sx4.c
View file

@ -174,7 +174,7 @@ static void pdc20621_get_from_dimm(struct ata_probe_ent *pe,
static void pdc20621_put_to_dimm(struct ata_probe_ent *pe,
void *psource, u32 offset, u32 size);
static void pdc20621_irq_clear(struct ata_port *ap);
static int pdc20621_qc_issue_prot(struct ata_queued_cmd *qc);
static unsigned int pdc20621_qc_issue_prot(struct ata_queued_cmd *qc);
static struct scsi_host_template pdc_sata_sht = {
@ -678,7 +678,7 @@ static void pdc20621_packet_start(struct ata_queued_cmd *qc)
}
}
static int pdc20621_qc_issue_prot(struct ata_queued_cmd *qc)
static unsigned int pdc20621_qc_issue_prot(struct ata_queued_cmd *qc)
{
switch (qc->tf.protocol) {
case ATA_PROT_DMA:

4
include/linux/libata.h
View file

@ -427,7 +427,7 @@ struct ata_port_operations {
void (*bmdma_start) (struct ata_queued_cmd *qc);
void (*qc_prep) (struct ata_queued_cmd *qc);
int (*qc_issue) (struct ata_queued_cmd *qc);
unsigned int (*qc_issue) (struct ata_queued_cmd *qc);
void (*eng_timeout) (struct ata_port *ap);
@ -515,7 +515,7 @@ extern void ata_port_stop (struct ata_port *ap);
extern void ata_host_stop (struct ata_host_set *host_set);
extern irqreturn_t ata_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
extern void ata_qc_prep(struct ata_queued_cmd *qc);
extern int ata_qc_issue_prot(struct ata_queued_cmd *qc);
extern unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc);
extern void ata_sg_init_one(struct ata_queued_cmd *qc, void *buf,
unsigned int buflen);
extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg,