diff options
Diffstat (limited to 'drivers/block/cciss.c')
| -rw-r--r-- | drivers/block/cciss.c | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index f804542c1cf..23c2910aa7b 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -190,8 +190,6 @@ static void cciss_geometry_inquiry(int ctlr, int logvol, static void __devinit cciss_interrupt_mode(ctlr_info_t *, struct pci_dev *, __u32); static void start_io(ctlr_info_t *h); -static int sendcmd(__u8 cmd, int ctlr, void *buff, size_t size, - __u8 page_code, unsigned char *scsi3addr, int cmd_type); static int sendcmd_withirq(__u8 cmd, int ctlr, void *buff, size_t size, __u8 page_code, unsigned char scsi3addr[], int cmd_type); @@ -2808,167 +2806,6 @@ static int cciss_revalidate(struct gendisk *disk) } /* - * Wait polling for a command to complete. - * The memory mapped FIFO is polled for the completion. - * Used only at init time, interrupts from the HBA are disabled. - */ -static unsigned long pollcomplete(int ctlr) -{ - unsigned long done; - int i; - - /* Wait (up to 20 seconds) for a command to complete */ - - for (i = 20 * HZ; i > 0; i--) { - done = hba[ctlr]->access.command_completed(hba[ctlr]); - if (done == FIFO_EMPTY) - schedule_timeout_uninterruptible(1); - else - return done; - } - /* Invalid address to tell caller we ran out of time */ - return 1; -} - -/* Send command c to controller h and poll for it to complete. - * Turns interrupts off on the board. Used at driver init time - * and during SCSI error recovery. - */ -static int sendcmd_core(ctlr_info_t *h, CommandList_struct *c) -{ - int i; - unsigned long complete; - int status = IO_ERROR; - u64bit buff_dma_handle; - -resend_cmd1: - - /* Disable interrupt on the board. */ - h->access.set_intr_mask(h, CCISS_INTR_OFF); - - /* Make sure there is room in the command FIFO */ - /* Actually it should be completely empty at this time */ - /* unless we are in here doing error handling for the scsi */ - /* tape side of the driver. */ - for (i = 200000; i > 0; i--) { - /* if fifo isn't full go */ - if (!(h->access.fifo_full(h))) - break; - udelay(10); - printk(KERN_WARNING "cciss cciss%d: SendCmd FIFO full," - " waiting!\n", h->ctlr); - } - h->access.submit_command(h, c); /* Send the cmd */ - do { - complete = pollcomplete(h->ctlr); - -#ifdef CCISS_DEBUG - printk(KERN_DEBUG "cciss: command completed\n"); -#endif /* CCISS_DEBUG */ - - if (complete == 1) { - printk(KERN_WARNING - "cciss cciss%d: SendCmd Timeout out, " - "No command list address returned!\n", h->ctlr); - status = IO_ERROR; - break; - } - - /* Make sure it's the command we're expecting. */ - if ((complete & ~CISS_ERROR_BIT) != c->busaddr) { - printk(KERN_WARNING "cciss%d: Unexpected command " - "completion.\n", h->ctlr); - continue; - } - - /* It is our command. If no error, we're done. */ - if (!(complete & CISS_ERROR_BIT)) { - status = IO_OK; - break; - } - - /* There is an error... */ - - /* if data overrun or underun on Report command ignore it */ - if (((c->Request.CDB[0] == CISS_REPORT_LOG) || - (c->Request.CDB[0] == CISS_REPORT_PHYS) || - (c->Request.CDB[0] == CISS_INQUIRY)) && - ((c->err_info->CommandStatus == CMD_DATA_OVERRUN) || - (c->err_info->CommandStatus == CMD_DATA_UNDERRUN))) { - complete = c->busaddr; - status = IO_OK; - break; - } - - if (c->err_info->CommandStatus == CMD_UNSOLICITED_ABORT) { - printk(KERN_WARNING "cciss%d: unsolicited abort %p\n", - h->ctlr, c); - if (c->retry_count < MAX_CMD_RETRIES) { - printk(KERN_WARNING "cciss%d: retrying %p\n", - h->ctlr, c); - c->retry_count++; - /* erase the old error information */ - memset(c->err_info, 0, sizeof(c->err_info)); - goto resend_cmd1; - } - printk(KERN_WARNING "cciss%d: retried %p too many " - "times\n", h->ctlr, c); - status = IO_ERROR; - break; - } - - if (c->err_info->CommandStatus == CMD_UNABORTABLE) { - printk(KERN_WARNING "cciss%d: command could not be " - "aborted.\n", h->ctlr); - status = IO_ERROR; - break; - } - - if (c->err_info->CommandStatus == CMD_TARGET_STATUS) { - status = check_target_status(h, c); - break; - } - - printk(KERN_WARNING "cciss%d: sendcmd error\n", h->ctlr); - printk(KERN_WARNING "cmd = 0x%02x, CommandStatus = 0x%02x\n", - c->Request.CDB[0], c->err_info->CommandStatus); - status = IO_ERROR; - break; - - } while (1); - - /* unlock the data buffer from DMA */ - buff_dma_handle.val32.lower = c->SG[0].Addr.lower; - buff_dma_handle.val32.upper = c->SG[0].Addr.upper; - pci_unmap_single(h->pdev, (dma_addr_t) buff_dma_handle.val, - c->SG[0].Len, PCI_DMA_BIDIRECTIONAL); - return status; -} - -/* - * Send a command to the controller, and wait for it to complete. - * Used at init time, and during SCSI error recovery. - */ -static int sendcmd(__u8 cmd, int ctlr, void *buff, size_t size, - __u8 page_code, unsigned char *scsi3addr, int cmd_type) -{ - CommandList_struct *c; - int status; - - c = cmd_alloc(hba[ctlr], 1); - if (!c) { - printk(KERN_WARNING "cciss: unable to get memory"); - return IO_ERROR; - } - status = fill_cmd(c, cmd, ctlr, buff, size, page_code, - scsi3addr, cmd_type); - if (status == IO_OK) - status = sendcmd_core(hba[ctlr], c); - cmd_free(hba[ctlr], c, 1); - return status; -} - -/* * Map (physical) PCI mem into (virtual) kernel space */ static void __iomem *remap_pci_mem(ulong base, ulong size) |