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| Started by | Ondrej Zary <linux@rainbow-software.org> |
|---|---|
| First post | 2015-12-04 22:10 +0100 |
| Last post | 2015-12-06 04:50 +0100 |
| Articles | 2 — 2 participants |
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[PATCH 74/71] ncr5380: Enable PDMA for NCR53C400A Ondrej Zary <linux@rainbow-software.org> - 2015-12-04 22:10 +0100
Re: [PATCH 74/71] ncr5380: Enable PDMA for NCR53C400A Finn Thain <fthain@telegraphics.com.au> - 2015-12-06 04:50 +0100
| From | Ondrej Zary <linux@rainbow-software.org> |
|---|---|
| Date | 2015-12-04 22:10 +0100 |
| Subject | [PATCH 74/71] ncr5380: Enable PDMA for NCR53C400A |
| Message-ID | <qC5M5-7Yp-5@gated-at.bofh.it> |
Add I/O register mapping for NCR53C400A and enable PDMA mode to
improve performance and fix non-working IRQ.
Tested with HP C2502 (and user-space enabler).
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
---
drivers/scsi/g_NCR5380.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c
index ce444da..cd483c6 100644
--- a/drivers/scsi/g_NCR5380.c
+++ b/drivers/scsi/g_NCR5380.c
@@ -324,7 +324,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
#endif
break;
case BOARD_NCR53C400A:
- flags = FLAG_NO_PSEUDO_DMA;
+ flags = FLAG_NO_DMA_FIXUP;
ports = ncr_53c400a_ports;
break;
case BOARD_DTC3181E:
@@ -412,6 +412,11 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
hostdata->c400_blk_cnt = 1;
hostdata->c400_host_buf = 4;
}
+ if (overrides[current_override].board == BOARD_NCR53C400A) {
+ hostdata->c400_ctl_status = 9;
+ hostdata->c400_blk_cnt = 10;
+ hostdata->c400_host_buf = 8;
+ }
#else
instance->base = overrides[current_override].NCR5380_map_name;
hostdata->iomem = iomem;
@@ -425,7 +430,8 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
if (NCR5380_init(instance, flags))
goto out_unregister;
- if (overrides[current_override].board == BOARD_NCR53C400)
+ if (overrides[current_override].board == BOARD_NCR53C400 ||
+ overrides[current_override].board == BOARD_NCR53C400A)
NCR5380_write(hostdata->c400_ctl_status, CSR_BASE);
NCR5380_maybe_reset_bus(instance);
--
Ondrej Zary
--
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| From | Finn Thain <fthain@telegraphics.com.au> |
|---|---|
| Date | 2015-12-06 04:50 +0100 |
| Message-ID | <qCyuJ-1Aw-9@gated-at.bofh.it> |
| In reply to | #1284227 |
On Fri, 4 Dec 2015, Ondrej Zary wrote:
> Add I/O register mapping for NCR53C400A and enable PDMA mode to
> improve performance and fix non-working IRQ.
>
> Tested with HP C2502 (and user-space enabler).
>
> Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
> ---
> drivers/scsi/g_NCR5380.c | 10 ++++++++--
> 1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c
> index ce444da..cd483c6 100644
> --- a/drivers/scsi/g_NCR5380.c
> +++ b/drivers/scsi/g_NCR5380.c
> @@ -324,7 +324,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
> #endif
> break;
> case BOARD_NCR53C400A:
> - flags = FLAG_NO_PSEUDO_DMA;
> + flags = FLAG_NO_DMA_FIXUP;
Nice!
> ports = ncr_53c400a_ports;
> break;
> case BOARD_DTC3181E:
> @@ -412,6 +412,11 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
> hostdata->c400_blk_cnt = 1;
> hostdata->c400_host_buf = 4;
> }
> + if (overrides[current_override].board == BOARD_NCR53C400A) {
Please use an 'else' here. Or a switch statement.
> + hostdata->c400_ctl_status = 9;
> + hostdata->c400_blk_cnt = 10;
> + hostdata->c400_host_buf = 8;
> + }
> #else
> instance->base = overrides[current_override].NCR5380_map_name;
> hostdata->iomem = iomem;
> @@ -425,7 +430,8 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
> if (NCR5380_init(instance, flags))
> goto out_unregister;
>
> - if (overrides[current_override].board == BOARD_NCR53C400)
> + if (overrides[current_override].board == BOARD_NCR53C400 ||
> + overrides[current_override].board == BOARD_NCR53C400A)
> NCR5380_write(hostdata->c400_ctl_status, CSR_BASE);
>
> NCR5380_maybe_reset_bus(instance);
>
--
--
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