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Date: Thu, 12 Nov 2009 12:49:40 -0600
From: "Stephen M. Cameron" <scameron@...rdog.cce.hp.com>
To: axboe@...nel.dk, akpm@...ux-foundation.org
Cc: linux-kernel@...r.kernel.org, mikem@...rdog.cce.hp.com,
achiang@...com, brace@...rdog.cce.hp.com
Subject: [PATCH 06/11] cciss: remove sendcmd() as it is no longer used.
From: Stephen M. Cameron <scameron@...rdog.cce.hp.com>
cciss: remove sendcmd() as it is no longer used.
Signed-off-by: Stephen M. Cameron <scameron@...rdog.cce.hp.com>
---
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 f804542..23c2910 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)
--
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