aboutsummaryrefslogtreecommitdiff
path: root/drivers/scsi/esp_scsi.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/esp_scsi.h')
-rw-r--r--drivers/scsi/esp_scsi.h13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/scsi/esp_scsi.h b/drivers/scsi/esp_scsi.h
index d5576d54ce7..bb43a138818 100644
--- a/drivers/scsi/esp_scsi.h
+++ b/drivers/scsi/esp_scsi.h
@@ -224,7 +224,7 @@
#define ESP_TIMEO_CONST 8192
#define ESP_NEG_DEFP(mhz, cfact) \
((ESP_BUS_TIMEOUT * ((mhz) / 1000)) / (8192 * (cfact)))
-#define ESP_MHZ_TO_CYCLE(mhertz) ((1000000000) / ((mhertz) / 1000))
+#define ESP_HZ_TO_CYCLE(hertz) ((1000000000) / ((hertz) / 1000))
#define ESP_TICK(ccf, cycle) ((7682 * (ccf) * (cycle) / 1000))
/* For slow to medium speed input clock rates we shoot for 5mb/s, but for high
@@ -240,9 +240,9 @@ struct esp_cmd_priv {
int num_sg;
} u;
- unsigned int cur_residue;
+ int cur_residue;
struct scatterlist *cur_sg;
- unsigned int tot_residue;
+ int tot_residue;
};
#define ESP_CMD_PRIV(CMD) ((struct esp_cmd_priv *)(&(CMD)->SCp))
@@ -368,6 +368,12 @@ struct esp_driver_ops {
*/
int (*irq_pending)(struct esp *esp);
+ /* Return the maximum allowable size of a DMA transfer for a
+ * given buffer.
+ */
+ u32 (*dma_length_limit)(struct esp *esp, u32 dma_addr,
+ u32 dma_len);
+
/* Reset the DMA engine entirely. On return, ESP interrupts
* should be enabled. Often the interrupt enabling is
* controlled in the DMA engine.
@@ -471,6 +477,7 @@ struct esp {
#define ESP_FLAG_DOING_SLOWCMD 0x00000004
#define ESP_FLAG_WIDE_CAPABLE 0x00000008
#define ESP_FLAG_QUICKIRQ_CHECK 0x00000010
+#define ESP_FLAG_DISABLE_SYNC 0x00000020
u8 select_state;
#define ESP_SELECT_NONE 0x00 /* Not selecting */