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[SCSI] dc395x: atomic_kmap for PIO

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Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Guennadi Liakhovetski 2005-09-16 19:28:01 +02:00 committed by James Bottomley
parent beb8abd9a9
commit fe607aa94f
2 changed files with 21 additions and 0 deletions
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13
drivers/scsi/dc395x.c
View File

@ -976,6 +976,16 @@ static void send_srb(struct AdapterCtlBlk *acb, struct ScsiReqBlk *srb)
}
}
static inline void pio_trigger(void)
{
static int feedback_requested;
if (!feedback_requested) {
feedback_requested = 1;
printk(KERN_WARNING "%s: Please, contact <linux-scsi@vger.kernel.org> "
"to help improve support for your system.\n", __FILE__);
}
}
/* Prepare SRB for being sent to Device DCB w/ command *cmd */
static void build_srb(struct scsi_cmnd *cmd, struct DeviceCtlBlk *dcb,
@ -2320,6 +2330,7 @@ static void data_in_phase0(struct AdapterCtlBlk *acb, struct ScsiReqBlk *srb,
CFG2_WIDEFIFO);
while (DC395x_read8(acb, TRM_S1040_SCSI_FIFOCNT) != 0x40) {
u8 byte = DC395x_read8(acb, TRM_S1040_SCSI_FIFO);
pio_trigger();
*(srb->virt_addr)++ = byte;
if (debug_enabled(DBG_PIO))
printk(" %02x", byte);
@ -2331,6 +2342,7 @@ static void data_in_phase0(struct AdapterCtlBlk *acb, struct ScsiReqBlk *srb,
/* Read the last byte ... */
if (srb->total_xfer_length > 0) {
u8 byte = DC395x_read8(acb, TRM_S1040_SCSI_FIFO);
pio_trigger();
*(srb->virt_addr)++ = byte;
srb->total_xfer_length--;
if (debug_enabled(DBG_PIO))
@ -2507,6 +2519,7 @@ static void data_io_transfer(struct AdapterCtlBlk *acb,
if (debug_enabled(DBG_PIO))
printk(" %02x", (unsigned char) *(srb->virt_addr));
pio_trigger();
DC395x_write8(acb, TRM_S1040_SCSI_FIFO,
*(srb->virt_addr)++);

8
drivers/scsi/tmscsim.c
View File

@ -988,7 +988,15 @@ din_1:
if( residual )
{
static int feedback_requested;
bval = DC390_read8 (ScsiFifo); /* get one residual byte */
if (!feedback_requested) {
feedback_requested = 1;
printk(KERN_WARNING "%s: Please, contact <linux-scsi@vger.kernel.org> "
"to help improve support for your system.\n", __FILE__);
}
ptr = (u8 *) bus_to_virt( pSRB->SGBusAddr );
*ptr = bval;
pSRB->SGBusAddr++; xferCnt++;