* total_xfer_length in xferred. These values are restored in
* pci_unmap_srb_sense. This is the only place xferred is used.
*/
+ unsigned char *virt_addr_req; /* Saved virtual address of the request buffer */
u32 xferred; /* Saved copy of total_xfer_length */
u16 state;
}
}
+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,
sg_verify_length(srb);
/* we need the corresponding virtual address */
- if (!segment) {
+ if (!segment || (srb->flag & AUTO_REQSENSE)) {
srb->virt_addr += xferred;
return;
}
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);
/* 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))
if (debug_enabled(DBG_PIO))
printk(" %02x", (unsigned char) *(srb->virt_addr));
+ pio_trigger();
DC395x_write8(acb, TRM_S1040_SCSI_FIFO,
*(srb->virt_addr)++);
srb->segment_x[DC395x_MAX_SG_LISTENTRY - 1].address;
srb->segment_x[0].length =
srb->segment_x[DC395x_MAX_SG_LISTENTRY - 1].length;
+ srb->virt_addr = srb->virt_addr_req;
}
srb->xferred = srb->total_xfer_length;
/* srb->segment_x : a one entry of S/G list table */
srb->total_xfer_length = sizeof(cmd->sense_buffer);
+ srb->virt_addr_req = srb->virt_addr;
+ srb->virt_addr = cmd->sense_buffer;
srb->segment_x[0].length = sizeof(cmd->sense_buffer);
/* Map sense buffer */
srb->segment_x[0].address =
const unsigned srbs_per_page = PAGE_SIZE/SEGMENTX_LEN;
for (i = 0; i < DC395x_MAX_SRB_CNT; i += srbs_per_page)
- if (acb->srb_array[i].segment_x)
- kfree(acb->srb_array[i].segment_x);
+ kfree(acb->srb_array[i].segment_x);
}