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ata: make qc_prep return ata_completion_errors 

In case a driver wants to return an error from qc_prep, return enum
ata_completion_errors. sata_mv is one of those drivers -- see the next
patch. Other drivers return the newly defined AC_ERR_OK.

[v2] use enum ata_completion_errors and AC_ERR_OK.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: linux-ide@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jiri Slaby 2019-10-31 10:59:45 +01:00 committed by Jens Axboe
parent 25937580a5
commit 95364f3670
19 changed files with 101 additions and 59 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/driver-api/libata.rst
View File

@ -250,7 +250,7 @@ High-level taskfile hooks
::
void (*qc_prep) (struct ata_queued_cmd *qc);
enum ata_completion_errors (*qc_prep) (struct ata_queued_cmd *qc);
int (*qc_issue) (struct ata_queued_cmd *qc);

6
drivers/ata/acard-ahci.c
View File

@ -56,7 +56,7 @@ struct acard_sg {
__le32 size; /* bit 31 (EOT) max==0x10000 (64k) */
};
static void acard_ahci_qc_prep(struct ata_queued_cmd *qc);
static enum ata_completion_errors acard_ahci_qc_prep(struct ata_queued_cmd *qc);
static bool acard_ahci_qc_fill_rtf(struct ata_queued_cmd *qc);
static int acard_ahci_port_start(struct ata_port *ap);
static int acard_ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
@ -210,7 +210,7 @@ static unsigned int acard_ahci_fill_sg(struct ata_queued_cmd *qc, void *cmd_tbl)
return si;
}
static void acard_ahci_qc_prep(struct ata_queued_cmd *qc)
static enum ata_completion_errors acard_ahci_qc_prep(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct ahci_port_priv *pp = ap->private_data;
@ -248,6 +248,8 @@ static void acard_ahci_qc_prep(struct ata_queued_cmd *qc)
opts |= AHCI_CMD_ATAPI | AHCI_CMD_PREFETCH;
ahci_fill_cmd_slot(pp, qc->hw_tag, opts);
return AC_ERR_OK;
}
static bool acard_ahci_qc_fill_rtf(struct ata_queued_cmd *qc)

6
drivers/ata/libahci.c
View File

@ -57,7 +57,7 @@ static int ahci_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
static bool ahci_qc_fill_rtf(struct ata_queued_cmd *qc);
static int ahci_port_start(struct ata_port *ap);
static void ahci_port_stop(struct ata_port *ap);
static void ahci_qc_prep(struct ata_queued_cmd *qc);
static enum ata_completion_errors ahci_qc_prep(struct ata_queued_cmd *qc);
static int ahci_pmp_qc_defer(struct ata_queued_cmd *qc);
static void ahci_freeze(struct ata_port *ap);
static void ahci_thaw(struct ata_port *ap);
@ -1624,7 +1624,7 @@ static int ahci_pmp_qc_defer(struct ata_queued_cmd *qc)
return sata_pmp_qc_defer_cmd_switch(qc);
}
static void ahci_qc_prep(struct ata_queued_cmd *qc)
static enum ata_completion_errors ahci_qc_prep(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct ahci_port_priv *pp = ap->private_data;
@ -1660,6 +1660,8 @@ static void ahci_qc_prep(struct ata_queued_cmd *qc)
opts |= AHCI_CMD_ATAPI | AHCI_CMD_PREFETCH;
ahci_fill_cmd_slot(pp, qc->hw_tag, opts);
return AC_ERR_OK;
}
static void ahci_fbs_dec_intr(struct ata_port *ap)

9
drivers/ata/libata-core.c
View File

@ -4980,7 +4980,10 @@ int ata_std_qc_defer(struct ata_queued_cmd *qc)
return ATA_DEFER_LINK;
}
void ata_noop_qc_prep(struct ata_queued_cmd *qc) { }
enum ata_completion_errors ata_noop_qc_prep(struct ata_queued_cmd *qc)
{
return AC_ERR_OK;
}
/**
* ata_sg_init - Associate command with scatter-gather table.
@ -5443,7 +5446,9 @@ void ata_qc_issue(struct ata_queued_cmd *qc)
return;
}
ap->ops->qc_prep(qc);
qc->err_mask |= ap->ops->qc_prep(qc);
if (unlikely(qc->err_mask))
goto err;
trace_ata_qc_issue(qc);
qc->err_mask |= ap->ops->qc_issue(qc);
if (unlikely(qc->err_mask))

12
drivers/ata/libata-sff.c
View File

@ -2679,12 +2679,14 @@ static void ata_bmdma_fill_sg_dumb(struct ata_queued_cmd *qc)
* LOCKING:
* spin_lock_irqsave(host lock)
*/
void ata_bmdma_qc_prep(struct ata_queued_cmd *qc)
enum ata_completion_errors ata_bmdma_qc_prep(struct ata_queued_cmd *qc)
{
if (!(qc->flags & ATA_QCFLAG_DMAMAP))
return;
return AC_ERR_OK;
ata_bmdma_fill_sg(qc);
return AC_ERR_OK;
}
EXPORT_SYMBOL_GPL(ata_bmdma_qc_prep);
@ -2697,12 +2699,14 @@ EXPORT_SYMBOL_GPL(ata_bmdma_qc_prep);
* LOCKING:
* spin_lock_irqsave(host lock)
*/
void ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc)
enum ata_completion_errors ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc)
{
if (!(qc->flags & ATA_QCFLAG_DMAMAP))
return;
return AC_ERR_OK;
ata_bmdma_fill_sg_dumb(qc);
return AC_ERR_OK;
}
EXPORT_SYMBOL_GPL(ata_bmdma_dumb_qc_prep);

6
drivers/ata/pata_macio.c
View File

@ -510,7 +510,7 @@ static int pata_macio_cable_detect(struct ata_port *ap)
return ATA_CBL_PATA40;
}
static void pata_macio_qc_prep(struct ata_queued_cmd *qc)
static enum ata_completion_errors pata_macio_qc_prep(struct ata_queued_cmd *qc)
{
unsigned int write = (qc->tf.flags & ATA_TFLAG_WRITE);
struct ata_port *ap = qc->ap;
@ -523,7 +523,7 @@ static void pata_macio_qc_prep(struct ata_queued_cmd *qc)
__func__, qc, qc->flags, write, qc->dev->devno);
if (!(qc->flags & ATA_QCFLAG_DMAMAP))
return;
return AC_ERR_OK;
table = (struct dbdma_cmd *) priv->dma_table_cpu;
@ -568,6 +568,8 @@ static void pata_macio_qc_prep(struct ata_queued_cmd *qc)
table->command = cpu_to_le16(DBDMA_STOP);
dev_dbgdma(priv->dev, "%s: %d DMA list entries\n", __func__, pi);
return AC_ERR_OK;
}

8
drivers/ata/pata_pxa.c
View File

@ -44,25 +44,27 @@ static void pxa_ata_dma_irq(void *d)
/*
* Prepare taskfile for submission.
*/
static void pxa_qc_prep(struct ata_queued_cmd *qc)
static enum ata_completion_errors pxa_qc_prep(struct ata_queued_cmd *qc)
{
struct pata_pxa_data *pd = qc->ap->private_data;
struct dma_async_tx_descriptor *tx;
enum dma_transfer_direction dir;
if (!(qc->flags & ATA_QCFLAG_DMAMAP))
return;
return AC_ERR_OK;
dir = (qc->dma_dir == DMA_TO_DEVICE ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM);
tx = dmaengine_prep_slave_sg(pd->dma_chan, qc->sg, qc->n_elem, dir,
DMA_PREP_INTERRUPT);
if (!tx) {
ata_dev_err(qc->dev, "prep_slave_sg() failed\n");
return;
return AC_ERR_OK;
}
tx->callback = pxa_ata_dma_irq;
tx->callback_param = pd;
pd->dma_cookie = dmaengine_submit(tx);
return AC_ERR_OK;
}
/*

7
drivers/ata/pdc_adma.c
View File

@ -116,7 +116,7 @@ static int adma_ata_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent);
static int adma_port_start(struct ata_port *ap);
static void adma_port_stop(struct ata_port *ap);
static void adma_qc_prep(struct ata_queued_cmd *qc);
static enum ata_completion_errors adma_qc_prep(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_freeze(struct ata_port *ap);
@ -295,7 +295,7 @@ static int adma_fill_sg(struct ata_queued_cmd *qc)
return i;
}
static void adma_qc_prep(struct ata_queued_cmd *qc)
static enum ata_completion_errors adma_qc_prep(struct ata_queued_cmd *qc)
{
struct adma_port_priv *pp = qc->ap->private_data;
u8 *buf = pp->pkt;
@ -306,7 +306,7 @@ static void adma_qc_prep(struct ata_queued_cmd *qc)
adma_enter_reg_mode(qc->ap);
if (qc->tf.protocol != ATA_PROT_DMA)
return;
return AC_ERR_OK;
buf[i++] = 0; /* Response flags */
buf[i++] = 0; /* reserved */
@ -371,6 +371,7 @@ static void adma_qc_prep(struct ata_queued_cmd *qc)
printk("%s\n", obuf);
}
#endif
return AC_ERR_OK;
}
static inline void adma_packet_start(struct ata_queued_cmd *qc)

4
drivers/ata/sata_fsl.c
View File

@ -502,7 +502,7 @@ static unsigned int sata_fsl_fill_sg(struct ata_queued_cmd *qc, void *cmd_desc,
return num_prde;
}
static void sata_fsl_qc_prep(struct ata_queued_cmd *qc)
static enum ata_completion_errors sata_fsl_qc_prep(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct sata_fsl_port_priv *pp = ap->private_data;
@ -548,6 +548,8 @@ static void sata_fsl_qc_prep(struct ata_queued_cmd *qc)
VPRINTK("SATA FSL : xx_qc_prep, di = 0x%x, ttl = %d, num_prde = %d\n",
desc_info, ttl_dwords, num_prde);
return AC_ERR_OK;
}
static unsigned int sata_fsl_qc_issue(struct ata_queued_cmd *qc)

4
drivers/ata/sata_inic162x.c
View File

@ -478,7 +478,7 @@ static void inic_fill_sg(struct inic_prd *prd, struct ata_queued_cmd *qc)
prd[-1].flags |= PRD_END;
}
static void inic_qc_prep(struct ata_queued_cmd *qc)
static enum ata_completion_errors inic_qc_prep(struct ata_queued_cmd *qc)
{
struct inic_port_priv *pp = qc->ap->private_data;
struct inic_pkt *pkt = pp->pkt;
@ -538,6 +538,8 @@ static void inic_qc_prep(struct ata_queued_cmd *qc)
inic_fill_sg(prd, qc);
pp->cpb_tbl[0] = pp->pkt_dma;
return AC_ERR_OK;
}
static unsigned int inic_qc_issue(struct ata_queued_cmd *qc)

26
drivers/ata/sata_mv.c
View File

@ -592,8 +592,8 @@ static int mv5_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val)
static int mv_port_start(struct ata_port *ap);
static void mv_port_stop(struct ata_port *ap);
static int mv_qc_defer(struct ata_queued_cmd *qc);
static void mv_qc_prep(struct ata_queued_cmd *qc);
static void mv_qc_prep_iie(struct ata_queued_cmd *qc);
static enum ata_completion_errors mv_qc_prep(struct ata_queued_cmd *qc);
static enum ata_completion_errors mv_qc_prep_iie(struct ata_queued_cmd *qc);
static unsigned int mv_qc_issue(struct ata_queued_cmd *qc);
static int mv_hardreset(struct ata_link *link, unsigned int *class,
unsigned long deadline);
@ -2031,7 +2031,7 @@ static void mv_rw_multi_errata_sata24(struct ata_queued_cmd *qc)
* LOCKING:
* Inherited from caller.
*/
static void mv_qc_prep(struct ata_queued_cmd *qc)
static enum ata_completion_errors mv_qc_prep(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct mv_port_priv *pp = ap->private_data;
@ -2043,15 +2043,15 @@ static void mv_qc_prep(struct ata_queued_cmd *qc)
switch (tf->protocol) {
case ATA_PROT_DMA:
if (tf->command == ATA_CMD_DSM)
return;
return AC_ERR_OK;
/* fall-thru */
case ATA_PROT_NCQ:
break; /* continue below */
case ATA_PROT_PIO:
mv_rw_multi_errata_sata24(qc);
return;
return AC_ERR_OK;
default:
return;
return AC_ERR_OK;
}
/* Fill in command request block
@ -2116,8 +2116,10 @@ static void mv_qc_prep(struct ata_queued_cmd *qc)
mv_crqb_pack_cmd(cw++, tf->command, ATA_REG_CMD, 1); /* last */
if (!(qc->flags & ATA_QCFLAG_DMAMAP))
return;
return AC_ERR_OK;
mv_fill_sg(qc);
return AC_ERR_OK;
}
/**
@ -2132,7 +2134,7 @@ static void mv_qc_prep(struct ata_queued_cmd *qc)
* LOCKING:
* Inherited from caller.
*/
static void mv_qc_prep_iie(struct ata_queued_cmd *qc)
static enum ata_completion_errors mv_qc_prep_iie(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct mv_port_priv *pp = ap->private_data;
@ -2143,9 +2145,9 @@ static void mv_qc_prep_iie(struct ata_queued_cmd *qc)
if ((tf->protocol != ATA_PROT_DMA) &&
(tf->protocol != ATA_PROT_NCQ))
return;
return AC_ERR_OK;
if (tf->command == ATA_CMD_DSM)
return; /* use bmdma for this */
return AC_ERR_OK; /* use bmdma for this */
/* Fill in Gen IIE command request block */
if (!(tf->flags & ATA_TFLAG_WRITE))
@ -2186,8 +2188,10 @@ static void mv_qc_prep_iie(struct ata_queued_cmd *qc)
);
if (!(qc->flags & ATA_QCFLAG_DMAMAP))
return;
return AC_ERR_OK;
mv_fill_sg(qc);
return AC_ERR_OK;
}
/**

18
drivers/ata/sata_nv.c
View File

@ -297,7 +297,7 @@ static void nv_ck804_freeze(struct ata_port *ap);
static void nv_ck804_thaw(struct ata_port *ap);
static int nv_adma_slave_config(struct scsi_device *sdev);
static int nv_adma_check_atapi_dma(struct ata_queued_cmd *qc);
static void nv_adma_qc_prep(struct ata_queued_cmd *qc);
static enum ata_completion_errors nv_adma_qc_prep(struct ata_queued_cmd *qc);
static unsigned int nv_adma_qc_issue(struct ata_queued_cmd *qc);
static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance);
static void nv_adma_irq_clear(struct ata_port *ap);
@ -319,7 +319,7 @@ static void nv_mcp55_freeze(struct ata_port *ap);
static void nv_swncq_error_handler(struct ata_port *ap);
static int nv_swncq_slave_config(struct scsi_device *sdev);
static int nv_swncq_port_start(struct ata_port *ap);
static void nv_swncq_qc_prep(struct ata_queued_cmd *qc);
static enum ata_completion_errors nv_swncq_qc_prep(struct ata_queued_cmd *qc);
static void nv_swncq_fill_sg(struct ata_queued_cmd *qc);
static unsigned int nv_swncq_qc_issue(struct ata_queued_cmd *qc);
static void nv_swncq_irq_clear(struct ata_port *ap, u16 fis);
@ -1344,7 +1344,7 @@ static int nv_adma_use_reg_mode(struct ata_queued_cmd *qc)
return 1;
}
static void nv_adma_qc_prep(struct ata_queued_cmd *qc)
static enum ata_completion_errors nv_adma_qc_prep(struct ata_queued_cmd *qc)
{
struct nv_adma_port_priv *pp = qc->ap->private_data;
struct nv_adma_cpb *cpb = &pp->cpb[qc->hw_tag];
@ -1356,7 +1356,7 @@ static void nv_adma_qc_prep(struct ata_queued_cmd *qc)
(qc->flags & ATA_QCFLAG_DMAMAP));
nv_adma_register_mode(qc->ap);
ata_bmdma_qc_prep(qc);
return;
return AC_ERR_OK;
}
cpb->resp_flags = NV_CPB_RESP_DONE;
@ -1388,6 +1388,8 @@ static void nv_adma_qc_prep(struct ata_queued_cmd *qc)
cpb->ctl_flags = ctl_flags;
wmb();
cpb->resp_flags = 0;
return AC_ERR_OK;
}
static unsigned int nv_adma_qc_issue(struct ata_queued_cmd *qc)
@ -1950,17 +1952,19 @@ static int nv_swncq_port_start(struct ata_port *ap)
return 0;
}
static void nv_swncq_qc_prep(struct ata_queued_cmd *qc)
static enum ata_completion_errors nv_swncq_qc_prep(struct ata_queued_cmd *qc)
{
if (qc->tf.protocol != ATA_PROT_NCQ) {
ata_bmdma_qc_prep(qc);
return;
return AC_ERR_OK;
}
if (!(qc->flags & ATA_QCFLAG_DMAMAP))
return;
return AC_ERR_OK;
nv_swncq_fill_sg(qc);
return AC_ERR_OK;
}
static void nv_swncq_fill_sg(struct ata_queued_cmd *qc)

6
drivers/ata/sata_promise.c
View File

@ -139,7 +139,7 @@ static int pdc_sata_scr_write(struct ata_link *link, unsigned int sc_reg, u32 va
static int pdc_ata_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
static int pdc_common_port_start(struct ata_port *ap);
static int pdc_sata_port_start(struct ata_port *ap);
static void pdc_qc_prep(struct ata_queued_cmd *qc);
static enum ata_completion_errors 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 int pdc_check_atapi_dma(struct ata_queued_cmd *qc);
@ -633,7 +633,7 @@ static void pdc_fill_sg(struct ata_queued_cmd *qc)
prd[idx - 1].flags_len |= cpu_to_le32(ATA_PRD_EOT);
}
static void pdc_qc_prep(struct ata_queued_cmd *qc)
static enum ata_completion_errors pdc_qc_prep(struct ata_queued_cmd *qc)
{
struct pdc_port_priv *pp = qc->ap->private_data;
unsigned int i;
@ -665,6 +665,8 @@ static void pdc_qc_prep(struct ata_queued_cmd *qc)
default:
break;
}
return AC_ERR_OK;
}
static int pdc_is_sataii_tx4(unsigned long flags)

8
drivers/ata/sata_qstor.c
View File

@ -100,7 +100,7 @@ static int qs_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
static int qs_ata_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
static int qs_port_start(struct ata_port *ap);
static void qs_host_stop(struct ata_host *host);
static void qs_qc_prep(struct ata_queued_cmd *qc);
static enum ata_completion_errors qs_qc_prep(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_freeze(struct ata_port *ap);
@ -260,7 +260,7 @@ static unsigned int qs_fill_sg(struct ata_queued_cmd *qc)
return si;
}
static void qs_qc_prep(struct ata_queued_cmd *qc)
static enum ata_completion_errors qs_qc_prep(struct ata_queued_cmd *qc)
{
struct qs_port_priv *pp = qc->ap->private_data;
u8 dflags = QS_DF_PORD, *buf = pp->pkt;
@ -272,7 +272,7 @@ static void qs_qc_prep(struct ata_queued_cmd *qc)
qs_enter_reg_mode(qc->ap);
if (qc->tf.protocol != ATA_PROT_DMA)
return;
return AC_ERR_OK;
nelem = qs_fill_sg(qc);
@ -295,6 +295,8 @@ static void qs_qc_prep(struct ata_queued_cmd *qc)
/* frame information structure (FIS) */
ata_tf_to_fis(&qc->tf, 0, 1, &buf[32]);
return AC_ERR_OK;
}
static inline void qs_packet_start(struct ata_queued_cmd *qc)

6
drivers/ata/sata_rcar.c
View File

@ -550,12 +550,14 @@ static void sata_rcar_bmdma_fill_sg(struct ata_queued_cmd *qc)
prd[si - 1].addr |= cpu_to_le32(SATA_RCAR_DTEND);
}
static void sata_rcar_qc_prep(struct ata_queued_cmd *qc)
static enum ata_completion_errors sata_rcar_qc_prep(struct ata_queued_cmd *qc)
{
if (!(qc->flags & ATA_QCFLAG_DMAMAP))
return;
return AC_ERR_OK;
sata_rcar_bmdma_fill_sg(qc);
return AC_ERR_OK;
}
static void sata_rcar_bmdma_setup(struct ata_queued_cmd *qc)

8
drivers/ata/sata_sil.c
View File

@ -103,7 +103,7 @@ static void sil_dev_config(struct ata_device *dev);
static int sil_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val);
static int sil_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
static int sil_set_mode(struct ata_link *link, struct ata_device **r_failed);
static void sil_qc_prep(struct ata_queued_cmd *qc);
static enum ata_completion_errors sil_qc_prep(struct ata_queued_cmd *qc);
static void sil_bmdma_setup(struct ata_queued_cmd *qc);
static void sil_bmdma_start(struct ata_queued_cmd *qc);
static void sil_bmdma_stop(struct ata_queued_cmd *qc);
@ -317,12 +317,14 @@ static void sil_fill_sg(struct ata_queued_cmd *qc)
last_prd->flags_len |= cpu_to_le32(ATA_PRD_EOT);
}
static void sil_qc_prep(struct ata_queued_cmd *qc)
static enum ata_completion_errors sil_qc_prep(struct ata_queued_cmd *qc)
{
if (!(qc->flags & ATA_QCFLAG_DMAMAP))
return;
return AC_ERR_OK;
sil_fill_sg(qc);
return AC_ERR_OK;
}
static unsigned char sil_get_device_cache_line(struct pci_dev *pdev)

6
drivers/ata/sata_sil24.c
View File

@ -326,7 +326,7 @@ static void sil24_dev_config(struct ata_device *dev);
static int sil24_scr_read(struct ata_link *link, unsigned sc_reg, u32 *val);
static int sil24_scr_write(struct ata_link *link, unsigned sc_reg, u32 val);
static int sil24_qc_defer(struct ata_queued_cmd *qc);
static void sil24_qc_prep(struct ata_queued_cmd *qc);
static enum ata_completion_errors sil24_qc_prep(struct ata_queued_cmd *qc);
static unsigned int sil24_qc_issue(struct ata_queued_cmd *qc);
static bool sil24_qc_fill_rtf(struct ata_queued_cmd *qc);
static void sil24_pmp_attach(struct ata_port *ap);
@ -830,7 +830,7 @@ static int sil24_qc_defer(struct ata_queued_cmd *qc)
return ata_std_qc_defer(qc);
}
static void sil24_qc_prep(struct ata_queued_cmd *qc)
static enum ata_completion_errors sil24_qc_prep(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct sil24_port_priv *pp = ap->private_data;
@ -874,6 +874,8 @@ static void sil24_qc_prep(struct ata_queued_cmd *qc)
if (qc->flags & ATA_QCFLAG_DMAMAP)
sil24_fill_sg(qc, sge);
return AC_ERR_OK;
}
static unsigned int sil24_qc_issue(struct ata_queued_cmd *qc)

6
drivers/ata/sata_sx4.c
View File

@ -202,7 +202,7 @@ static void pdc_error_handler(struct ata_port *ap);
static void pdc_freeze(struct ata_port *ap);
static void pdc_thaw(struct ata_port *ap);
static int pdc_port_start(struct ata_port *ap);
static void pdc20621_qc_prep(struct ata_queued_cmd *qc);
static enum ata_completion_errors pdc20621_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 unsigned int pdc20621_dimm_init(struct ata_host *host);
@ -530,7 +530,7 @@ static void pdc20621_nodata_prep(struct ata_queued_cmd *qc)
VPRINTK("ata pkt buf ofs %u, mmio copied\n", i);
}
static void pdc20621_qc_prep(struct ata_queued_cmd *qc)
static enum ata_completion_errors pdc20621_qc_prep(struct ata_queued_cmd *qc)
{
switch (qc->tf.protocol) {
case ATA_PROT_DMA:
@ -542,6 +542,8 @@ static void pdc20621_qc_prep(struct ata_queued_cmd *qc)
default:
break;
}
return AC_ERR_OK;
}
static void __pdc20621_push_hdma(struct ata_queued_cmd *qc,

12
include/linux/libata.h
View File

@ -892,9 +892,9 @@ struct ata_port_operations {
/*
* Command execution
*/
int (*qc_defer)(struct ata_queued_cmd *qc);
int (*check_atapi_dma)(struct ata_queued_cmd *qc);
void (*qc_prep)(struct ata_queued_cmd *qc);
int (*qc_defer)(struct ata_queued_cmd *qc);
int (*check_atapi_dma)(struct ata_queued_cmd *qc);
enum ata_completion_errors (*qc_prep)(struct ata_queued_cmd *qc);
unsigned int (*qc_issue)(struct ata_queued_cmd *qc);
bool (*qc_fill_rtf)(struct ata_queued_cmd *qc);
@ -1162,7 +1162,7 @@ extern int ata_xfer_mode2shift(unsigned long xfer_mode);
extern const char *ata_mode_string(unsigned long xfer_mask);
extern unsigned long ata_id_xfermask(const u16 *id);
extern int ata_std_qc_defer(struct ata_queued_cmd *qc);
extern void ata_noop_qc_prep(struct ata_queued_cmd *qc);
extern enum ata_completion_errors ata_noop_qc_prep(struct ata_queued_cmd *qc);
extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg,
unsigned int n_elem);
extern unsigned int ata_dev_classify(const struct ata_taskfile *tf);
@ -1894,9 +1894,9 @@ extern const struct ata_port_operations ata_bmdma_port_ops;
.sg_tablesize = LIBATA_MAX_PRD, \
.dma_boundary = ATA_DMA_BOUNDARY
extern void ata_bmdma_qc_prep(struct ata_queued_cmd *qc);
extern enum ata_completion_errors ata_bmdma_qc_prep(struct ata_queued_cmd *qc);
extern unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc);
extern void ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc);
extern enum ata_completion_errors ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc);
extern unsigned int ata_bmdma_port_intr(struct ata_port *ap,
struct ata_queued_cmd *qc);
extern irqreturn_t ata_bmdma_interrupt(int irq, void *dev_instance);