diff options
Diffstat (limited to 'drivers/scsi/NCR5380.c')
-rw-r--r-- | drivers/scsi/NCR5380.c | 74 |
1 files changed, 45 insertions, 29 deletions
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index b9a3eb0647e4..8429c855701f 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -131,6 +131,7 @@ static int do_abort(struct Scsi_Host *); static void do_reset(struct Scsi_Host *); +static void bus_reset_cleanup(struct Scsi_Host *); /** * initialize_SCp - init the scsi pointer field @@ -883,7 +884,14 @@ static irqreturn_t __maybe_unused NCR5380_intr(int irq, void *dev_id) /* Probably Bus Reset */ NCR5380_read(RESET_PARITY_INTERRUPT_REG); - dsprintk(NDEBUG_INTR, instance, "unknown interrupt\n"); + if (sr & SR_RST) { + /* Certainly Bus Reset */ + shost_printk(KERN_WARNING, instance, + "bus reset interrupt\n"); + bus_reset_cleanup(instance); + } else { + dsprintk(NDEBUG_INTR, instance, "unknown interrupt\n"); + } #ifdef SUN3_SCSI_VME dregs->csr |= CSR_DMA_ENABLE; #endif @@ -2305,31 +2313,12 @@ out: } -/** - * NCR5380_host_reset - reset the SCSI host - * @cmd: SCSI command undergoing EH - * - * Returns SUCCESS - */ - -static int NCR5380_host_reset(struct scsi_cmnd *cmd) +static void bus_reset_cleanup(struct Scsi_Host *instance) { - struct Scsi_Host *instance = cmd->device->host; struct NCR5380_hostdata *hostdata = shost_priv(instance); int i; - unsigned long flags; struct NCR5380_cmd *ncmd; - spin_lock_irqsave(&hostdata->lock, flags); - -#if (NDEBUG & NDEBUG_ANY) - shost_printk(KERN_INFO, instance, __func__); -#endif - NCR5380_dprint(NDEBUG_ANY, instance); - NCR5380_dprint_phase(NDEBUG_ANY, instance); - - do_reset(instance); - /* reset NCR registers */ NCR5380_write(MODE_REG, MR_BASE); NCR5380_write(TARGET_COMMAND_REG, 0); @@ -2341,14 +2330,6 @@ static int NCR5380_host_reset(struct scsi_cmnd *cmd) * commands! */ - list_for_each_entry(ncmd, &hostdata->unissued, list) { - struct scsi_cmnd *cmd = NCR5380_to_scmd(ncmd); - - cmd->result = DID_RESET << 16; - cmd->scsi_done(cmd); - } - INIT_LIST_HEAD(&hostdata->unissued); - if (hostdata->selecting) { hostdata->selecting->result = DID_RESET << 16; complete_cmd(instance, hostdata->selecting); @@ -2382,6 +2363,41 @@ static int NCR5380_host_reset(struct scsi_cmnd *cmd) queue_work(hostdata->work_q, &hostdata->main_task); maybe_release_dma_irq(instance); +} + +/** + * NCR5380_host_reset - reset the SCSI host + * @cmd: SCSI command undergoing EH + * + * Returns SUCCESS + */ + +static int NCR5380_host_reset(struct scsi_cmnd *cmd) +{ + struct Scsi_Host *instance = cmd->device->host; + struct NCR5380_hostdata *hostdata = shost_priv(instance); + unsigned long flags; + struct NCR5380_cmd *ncmd; + + spin_lock_irqsave(&hostdata->lock, flags); + +#if (NDEBUG & NDEBUG_ANY) + shost_printk(KERN_INFO, instance, __func__); +#endif + NCR5380_dprint(NDEBUG_ANY, instance); + NCR5380_dprint_phase(NDEBUG_ANY, instance); + + list_for_each_entry(ncmd, &hostdata->unissued, list) { + struct scsi_cmnd *scmd = NCR5380_to_scmd(ncmd); + + scmd->result = DID_RESET << 16; + scmd->scsi_done(scmd); + } + INIT_LIST_HEAD(&hostdata->unissued); + + do_reset(instance); + bus_reset_cleanup(instance); + spin_unlock_irqrestore(&hostdata->lock, flags); return SUCCESS; |