SGI machines with WD33C93 allow usage of burst mode DMA, which increases
performance noticable. To make this selectable by the sgiwd93 stub,
setting the values for no_sync, fast and dma_mode has been moved to the
individual platform stubs.
Signed-off-by: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
---
Please apply for 2.6.26
drivers/scsi/a2091.c | 3 +++
drivers/scsi/a3000.c | 3 +++
drivers/scsi/gvp11.c | 3 +++
drivers/scsi/mvme147.c | 3 +++
drivers/scsi/sgiwd93.c | 7 ++++---
drivers/scsi/wd33c93.c | 3 ---
6 files changed, 16 insertions(+), 6 deletions(-)
diff --git a/drivers/scsi/a2091.c b/drivers/scsi/a2091.c
index 5ac3a3e..1d1bb25 100644
--- a/drivers/scsi/a2091.c
+++ b/drivers/scsi/a2091.c
@@ -179,6 +179,9 @@ int __init a2091_detect(struct scsi_host_template *tpnt)
DMA(instance)->DAWR = DAWR_A2091;
regs.SASR = &(DMA(instance)->SASR);
regs.SCMD = &(DMA(instance)->SCMD);
+ HDATA(a3000_host)->no_sync = 0xff;
+ HDATA(a3000_host)->fast = 0;
+ HDATA(a3000_host)->dma_mode = CTRL_DMA;
wd33c93_init(instance, regs, dma_setup, dma_stop, WD33C93_FS_8_10);
request_irq(IRQ_AMIGA_PORTS, a2091_intr, IRQF_SHARED, "A2091 SCSI",
instance);
diff --git a/drivers/scsi/a3000.c b/drivers/scsi/a3000.c
index 3aeec96..8b449d8 100644
--- a/drivers/scsi/a3000.c
+++ b/drivers/scsi/a3000.c
@@ -178,6 +178,9 @@ int __init a3000_detect(struct scsi_host_template *tpnt)
DMA(a3000_host)->DAWR = DAWR_A3000;
regs.SASR = &(DMA(a3000_host)->SASR);
regs.SCMD = &(DMA(a3000_host)->SCMD);
+ HDATA(a3000_host)->no_sync = 0xff;
+ HDATA(a3000_host)->fast = 0;
+ HDATA(a3000_host)->dma_mode = CTRL_DMA;
wd33c93_init(a3000_host, regs, dma_setup, dma_stop, WD33C93_FS_12_15);
if (request_irq(IRQ_AMIGA_PORTS, a3000_intr, IRQF_SHARED, "A3000 SCSI",
a3000_intr))
diff --git a/drivers/scsi/gvp11.c b/drivers/scsi/gvp11.c
index 91f8522..e75a7ba 100644
--- a/drivers/scsi/gvp11.c
+++ b/drivers/scsi/gvp11.c
@@ -322,6 +322,9 @@ int __init gvp11_detect(struct scsi_host_template *tpnt)
*/
regs.SASR = &(DMA(instance)->SASR);
regs.SCMD = &(DMA(instance)->SCMD);
+ HDATA(a3000_host)->no_sync = 0xff;
+ HDATA(a3000_host)->fast = 0;
+ HDATA(a3000_host)->dma_mode = CTRL_DMA;
wd33c93_init(instance, regs, dma_setup, dma_stop,
(epc & GVP_SCSICLKMASK) ? WD33C93_FS_8_10
: WD33C93_FS_12_15);
diff --git a/drivers/scsi/mvme147.c b/drivers/scsi/mvme147.c
index be41aad..6a8cf17 100644
--- a/drivers/scsi/mvme147.c
+++ b/drivers/scsi/mvme147.c
@@ -82,6 +82,9 @@ int mvme147_detect(struct scsi_host_template *tpnt)
mvme147_host->irq = MVME147_IRQ_SCSI_PORT;
regs.SASR = (volatile unsigned char *)0xfffe4000;
regs.SCMD = (volatile unsigned char *)0xfffe4001;
+ HDATA(a3000_host)->no_sync = 0xff;
+ HDATA(a3000_host)->fast = 0;
+ HDATA(a3000_host)->dma_mode = CTRL_DMA;
wd33c93_init(mvme147_host, regs, dma_setup, dma_stop, WD33C93_FS_8_10);
if (request_irq(MVME147_IRQ_SCSI_PORT, mvme147_intr, 0, "MVME147 SCSI PORT", mvme147_intr))
diff --git a/drivers/scsi/sgiwd93.c b/drivers/scsi/sgiwd93.c
index 26cfc56..03e3596 100644
--- a/drivers/scsi/sgiwd93.c
+++ b/drivers/scsi/sgiwd93.c
@@ -263,10 +263,11 @@ static int __init sgiwd93_probe(struct platform_device *pdev)
regs.SASR = wdregs + 3;
regs.SCMD = wdregs + 7;
- wd33c93_init(host, regs, dma_setup, dma_stop, WD33C93_FS_MHZ(20));
+ hdata->wh.no_sync = 0;
+ hdata->wh.fast = 1;
+ hdata->wh.dma_mode = CTRL_BURST;
- if (hdata->wh.no_sync == 0xff)
- hdata->wh.no_sync = 0;
+ wd33c93_init(host, regs, dma_setup, dma_stop, WD33C93_FS_MHZ(20));
err = request_irq(irq, sgiwd93_intr, 0, "SGI WD93", host);
if (err) {
diff --git a/drivers/scsi/wd33c93.c b/drivers/scsi/wd33c93.c
index f286c37..5fda881 100644
--- a/drivers/scsi/wd33c93.c
+++ b/drivers/scsi/wd33c93.c
@@ -1973,10 +1973,7 @@ wd33c93_init(struct Scsi_Host *instance, const wd33c93_regs regs,
hostdata->incoming_ptr = 0;
hostdata->outgoing_len = 0;
hostdata->default_sx_per = DEFAULT_SX_PER;
- hostdata->no_sync = 0xff; /* sync defaults to off */
hostdata->no_dma = 0; /* default is DMA enabled */
- hostdata->fast = 0; /* default is Fast SCSI transfers disabled */
- hostdata->dma_mode = CTRL_DMA; /* default is Single Byte DMA */
#ifdef PROC_INTERFACE
hostdata->proc = PR_VERSION | PR_INFO | PR_STATISTICS |
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
