#include "cciss_scsi.h"
+#define CCISS_ABORT_MSG 0x00
+#define CCISS_RESET_MSG 0x01
+
/* some prototypes... */
static int sendcmd(
__u8 cmd,
static int cciss_scsi_queue_command (struct scsi_cmnd *cmd,
void (* done)(struct scsi_cmnd *));
+static int cciss_eh_device_reset_handler(struct scsi_cmnd *);
+static int cciss_eh_abort_handler(struct scsi_cmnd *);
static struct cciss_scsi_hba_t ccissscsi[MAX_CTLR] = {
{ .name = "cciss0", .ndevices = 0 },
.sg_tablesize = MAXSGENTRIES,
.cmd_per_lun = 1,
.use_clustering = DISABLE_CLUSTERING,
+ /* Can't have eh_bus_reset_handler or eh_host_reset_handler for cciss */
+ .eh_device_reset_handler= cciss_eh_device_reset_handler,
+ .eh_abort_handler = cciss_eh_abort_handler,
};
#pragma pack(1)
if (cmd->use_sg) {
pci_unmap_sg(ctlr->pdev,
- cmd->buffer, cmd->use_sg,
+ cmd->request_buffer, cmd->use_sg,
cmd->sc_data_direction);
}
else if (cmd->request_bufflen) {
((struct cciss_scsi_adapter_data_t *)
hba[ctlr]->scsi_ctlr)->scsi_host = (void *) sh;
sh->hostdata[0] = (unsigned long) hba[ctlr];
- sh->irq = hba[ctlr]->intr;
+ sh->irq = hba[ctlr]->intr[SIMPLE_MODE_INT];
sh->unique_id = sh->irq;
error = scsi_add_host(sh, &hba[ctlr]->pdev->dev);
if (error)
int i;
c = (ctlr_info_t *) hba[cntl_num];
- ld_buff = kmalloc(reportlunsize, GFP_KERNEL);
+ ld_buff = kzalloc(reportlunsize, GFP_KERNEL);
if (ld_buff == NULL) {
printk(KERN_ERR "cciss: out of memory\n");
return;
}
- memset(ld_buff, 0, reportlunsize);
inq_buff = kmalloc(OBDR_TAPE_INQ_SIZE, GFP_KERNEL);
if (inq_buff == NULL) {
printk(KERN_ERR "cciss: out of memory\n");
struct scsi_cmnd *cmd)
{
unsigned int use_sg, nsegs=0, len;
- struct scatterlist *scatter = (struct scatterlist *) cmd->buffer;
+ struct scatterlist *scatter = (struct scatterlist *) cmd->request_buffer;
__u64 addr64;
/* is it just one virtual address? */
} /* else, must be a list of virtual addresses.... */
else if (cmd->use_sg <= MAXSGENTRIES) { /* not too many addrs? */
- use_sg = pci_map_sg(pdev, cmd->buffer, cmd->use_sg,
+ use_sg = pci_map_sg(pdev, cmd->request_buffer, cmd->use_sg,
cmd->sc_data_direction);
for (nsegs=0; nsegs < use_sg; nsegs++) {
cp->Request.Timeout = 0;
memset(cp->Request.CDB, 0, sizeof(cp->Request.CDB));
- if (cmd->cmd_len > sizeof(cp->Request.CDB)) BUG();
+ BUG_ON(cmd->cmd_len > sizeof(cp->Request.CDB));
cp->Request.CDBLen = cmd->cmd_len;
memcpy(cp->Request.CDB, cmd->cmnd, cmd->cmd_len);
cp->Request.Type.Type = TYPE_CMD;
*pos += size; *len += size;
}
+/* Need at least one of these error handlers to keep ../scsi/hosts.c from
+ * complaining. Doing a host- or bus-reset can't do anything good here.
+ * Despite what it might say in scsi_error.c, there may well be commands
+ * on the controller, as the cciss driver registers twice, once as a block
+ * device for the logical drives, and once as a scsi device, for any tape
+ * drives. So we know there are no commands out on the tape drives, but we
+ * don't know there are no commands on the controller, and it is likely
+ * that there probably are, as the cciss block device is most commonly used
+ * as a boot device (embedded controller on HP/Compaq systems.)
+*/
+
+static int cciss_eh_device_reset_handler(struct scsi_cmnd *scsicmd)
+{
+ int rc;
+ CommandList_struct *cmd_in_trouble;
+ ctlr_info_t **c;
+ int ctlr;
+
+ /* find the controller to which the command to be aborted was sent */
+ c = (ctlr_info_t **) &scsicmd->device->host->hostdata[0];
+ if (c == NULL) /* paranoia */
+ return FAILED;
+ ctlr = (*c)->ctlr;
+ printk(KERN_WARNING "cciss%d: resetting tape drive or medium changer.\n", ctlr);
+
+ /* find the command that's giving us trouble */
+ cmd_in_trouble = (CommandList_struct *) scsicmd->host_scribble;
+ if (cmd_in_trouble == NULL) { /* paranoia */
+ return FAILED;
+ }
+ /* send a reset to the SCSI LUN which the command was sent to */
+ rc = sendcmd(CCISS_RESET_MSG, ctlr, NULL, 0, 2, 0, 0,
+ (unsigned char *) &cmd_in_trouble->Header.LUN.LunAddrBytes[0],
+ TYPE_MSG);
+ /* sendcmd turned off interrputs on the board, turn 'em back on. */
+ (*c)->access.set_intr_mask(*c, CCISS_INTR_ON);
+ if (rc == 0)
+ return SUCCESS;
+ printk(KERN_WARNING "cciss%d: resetting device failed.\n", ctlr);
+ return FAILED;
+}
+
+static int cciss_eh_abort_handler(struct scsi_cmnd *scsicmd)
+{
+ int rc;
+ CommandList_struct *cmd_to_abort;
+ ctlr_info_t **c;
+ int ctlr;
+
+ /* find the controller to which the command to be aborted was sent */
+ c = (ctlr_info_t **) &scsicmd->device->host->hostdata[0];
+ if (c == NULL) /* paranoia */
+ return FAILED;
+ ctlr = (*c)->ctlr;
+ printk(KERN_WARNING "cciss%d: aborting tardy SCSI cmd\n", ctlr);
+
+ /* find the command to be aborted */
+ cmd_to_abort = (CommandList_struct *) scsicmd->host_scribble;
+ if (cmd_to_abort == NULL) /* paranoia */
+ return FAILED;
+ rc = sendcmd(CCISS_ABORT_MSG, ctlr, &cmd_to_abort->Header.Tag,
+ 0, 2, 0, 0,
+ (unsigned char *) &cmd_to_abort->Header.LUN.LunAddrBytes[0],
+ TYPE_MSG);
+ /* sendcmd turned off interrputs on the board, turn 'em back on. */
+ (*c)->access.set_intr_mask(*c, CCISS_INTR_ON);
+ if (rc == 0)
+ return SUCCESS;
+ return FAILED;
+
+}
+
#else /* no CONFIG_CISS_SCSI_TAPE */
/* If no tape support, then these become defined out of existence */