diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/cciss.c | 98 | ||||
| -rw-r--r-- | drivers/block/cciss.h | 9 |
2 files changed, 3 insertions, 104 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 9a9db6deefcd..b22cec97ea19 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -2612,51 +2612,6 @@ static unsigned long pollcomplete(int ctlr) return 1; } -static int add_sendcmd_reject(__u8 cmd, int ctlr, unsigned long complete) -{ - /* We get in here if sendcmd() is polling for completions - and gets some command back that it wasn't expecting -- - something other than that which it just sent down. - Ordinarily, that shouldn't happen, but it can happen when - the scsi tape stuff gets into error handling mode, and - starts using sendcmd() to try to abort commands and - reset tape drives. In that case, sendcmd may pick up - completions of commands that were sent to logical drives - through the block i/o system, or cciss ioctls completing, etc. - In that case, we need to save those completions for later - processing by the interrupt handler. - */ - -#ifdef CONFIG_CISS_SCSI_TAPE - struct sendcmd_reject_list *srl = &hba[ctlr]->scsi_rejects; - - /* If it's not the scsi tape stuff doing error handling, (abort */ - /* or reset) then we don't expect anything weird. */ - if (cmd != CCISS_RESET_MSG && cmd != CCISS_ABORT_MSG) { -#endif - printk(KERN_WARNING "cciss cciss%d: SendCmd " - "Invalid command list address returned! (%lx)\n", - ctlr, complete); - /* not much we can do. */ -#ifdef CONFIG_CISS_SCSI_TAPE - return 1; - } - - /* We've sent down an abort or reset, but something else - has completed */ - if (srl->ncompletions >= (hba[ctlr]->nr_cmds + 2)) { - /* Uh oh. No room to save it for later... */ - printk(KERN_WARNING "cciss%d: Sendcmd: Invalid command addr, " - "reject list overflow, command lost!\n", ctlr); - return 1; - } - /* Save it for later */ - srl->complete[srl->ncompletions] = complete; - srl->ncompletions++; -#endif - return 0; -} - /* 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. @@ -2701,11 +2656,10 @@ resend_cmd1: break; } - /* If it's not the cmd we're looking for, save it for later */ + /* Make sure it's the command we're expecting. */ if ((complete & ~CISS_ERROR_BIT) != c->busaddr) { - if (add_sendcmd_reject(c->Request.CDB[0], - h->ctlr, complete) != 0) - BUG(); /* we are hosed if we get here. */ + printk(KERN_WARNING "cciss%d: Unexpected command " + "completion.\n", h->ctlr); continue; } @@ -2770,11 +2724,6 @@ resend_cmd1: 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); -#ifdef CONFIG_CISS_SCSI_TAPE - /* if we saved some commands for later, process them now. */ - if (h->scsi_rejects.ncompletions > 0) - do_cciss_intr(0, h); -#endif return status; } @@ -3195,44 +3144,18 @@ startio: static inline unsigned long get_next_completion(ctlr_info_t *h) { -#ifdef CONFIG_CISS_SCSI_TAPE - /* Any rejects from sendcmd() lying around? Process them first */ - if (h->scsi_rejects.ncompletions == 0) - return h->access.command_completed(h); - else { - struct sendcmd_reject_list *srl; - int n; - srl = &h->scsi_rejects; - n = --srl->ncompletions; - /* printk("cciss%d: processing saved reject\n", h->ctlr); */ - printk("p"); - return srl->complete[n]; - } -#else return h->access.command_completed(h); -#endif } static inline int interrupt_pending(ctlr_info_t *h) { -#ifdef CONFIG_CISS_SCSI_TAPE - return (h->access.intr_pending(h) - || (h->scsi_rejects.ncompletions > 0)); -#else return h->access.intr_pending(h); -#endif } static inline long interrupt_not_for_us(ctlr_info_t *h) { -#ifdef CONFIG_CISS_SCSI_TAPE - return (((h->access.intr_pending(h) == 0) || - (h->interrupts_enabled == 0)) - && (h->scsi_rejects.ncompletions == 0)); -#else return (((h->access.intr_pending(h) == 0) || (h->interrupts_enabled == 0))); -#endif } static irqreturn_t do_cciss_intr(int irq, void *dev_id) @@ -4054,15 +3977,6 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, printk(KERN_ERR "cciss: out of memory"); goto clean4; } -#ifdef CONFIG_CISS_SCSI_TAPE - hba[i]->scsi_rejects.complete = - kmalloc(sizeof(hba[i]->scsi_rejects.complete[0]) * - (hba[i]->nr_cmds + 5), GFP_KERNEL); - if (hba[i]->scsi_rejects.complete == NULL) { - printk(KERN_ERR "cciss: out of memory"); - goto clean4; - } -#endif spin_lock_init(&hba[i]->lock); /* Initialize the pdev driver private data. @@ -4122,9 +4036,6 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, clean4: kfree(inq_buff); -#ifdef CONFIG_CISS_SCSI_TAPE - kfree(hba[i]->scsi_rejects.complete); -#endif kfree(hba[i]->cmd_pool_bits); if (hba[i]->cmd_pool) pci_free_consistent(hba[i]->pdev, @@ -4242,9 +4153,6 @@ static void __devexit cciss_remove_one(struct pci_dev *pdev) pci_free_consistent(hba[i]->pdev, hba[i]->nr_cmds * sizeof(ErrorInfo_struct), hba[i]->errinfo_pool, hba[i]->errinfo_pool_dhandle); kfree(hba[i]->cmd_pool_bits); -#ifdef CONFIG_CISS_SCSI_TAPE - kfree(hba[i]->scsi_rejects.complete); -#endif /* * Deliberately omit pci_disable_device(): it does something nasty to * Smart Array controllers that pci_enable_device does not undo diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h index 25cd58e25021..06a5db25b298 100644 --- a/drivers/block/cciss.h +++ b/drivers/block/cciss.h @@ -53,14 +53,6 @@ typedef struct _drive_info_struct char rev[REV_LEN + 1]; /* SCSI revision string */ } drive_info_struct; -#ifdef CONFIG_CISS_SCSI_TAPE - -struct sendcmd_reject_list { - int ncompletions; - unsigned long *complete; /* array of NR_CMDS tags */ -}; - -#endif struct ctlr_info { int ctlr; @@ -128,7 +120,6 @@ struct ctlr_info void *scsi_ctlr; /* ptr to structure containing scsi related stuff */ /* list of block side commands the scsi error handling sucked up */ /* and saved for later processing */ - struct sendcmd_reject_list scsi_rejects; #endif unsigned char alive; struct completion *rescan_wait; |