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Commit 8e93bf6d authored by Stephen M. Cameron's avatar Stephen M. Cameron Committed by Jens Axboe
Browse files

cciss: factor out cciss_find_cfg_addrs. 



Rationale for this is that I will also need to use this code
in fixing kdump host reset code prior to having the hba structure.

Signed-off-by: default avatarStephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: default avatarJens Axboe <jaxboe@fusionio.com>
parent b9933135

drivers/block/cciss.c

+23 −12
Original line number Diff line number Diff line
@@ -4064,29 +4064,40 @@ static int __devinit cciss_wait_for_board_ready(ctlr_info_t *h) 
	return -ENODEV;

}



static int __devinit cciss_find_cfg_addrs(struct pci_dev *pdev,

	void __iomem *vaddr, u32 *cfg_base_addr, u64 *cfg_base_addr_index,

	u64 *cfg_offset)

{

	*cfg_base_addr = readl(vaddr + SA5_CTCFG_OFFSET);

	*cfg_offset = readl(vaddr + SA5_CTMEM_OFFSET);

	*cfg_base_addr &= (u32) 0x0000ffff;

	*cfg_base_addr_index = find_PCI_BAR_index(pdev, *cfg_base_addr);

	if (*cfg_base_addr_index == -1) {

		dev_warn(&pdev->dev, "cannot find cfg_base_addr_index, "

			"*cfg_base_addr = 0x%08x\n", *cfg_base_addr);

		return -ENODEV;

	}

	return 0;

}



static int __devinit cciss_find_cfgtables(ctlr_info_t *h)

{

	u64 cfg_offset;

	u32 cfg_base_addr;

	u64 cfg_base_addr_index;

	u32 trans_offset;

	int rc;



	/* get the address index number */

	cfg_base_addr = readl(h->vaddr + SA5_CTCFG_OFFSET);

	cfg_base_addr &= (u32) 0x0000ffff;

	cfg_base_addr_index = find_PCI_BAR_index(h->pdev, cfg_base_addr);

	if (cfg_base_addr_index == -1) {

		dev_warn(&h->pdev->dev, "cannot find cfg_base_addr_index\n");

		return -ENODEV;

	}

	cfg_offset = readl(h->vaddr + SA5_CTMEM_OFFSET);

	rc = cciss_find_cfg_addrs(h->pdev, h->vaddr, &cfg_base_addr,

		&cfg_base_addr_index, &cfg_offset);

	if (rc)

		return rc;

	h->cfgtable = remap_pci_mem(pci_resource_start(h->pdev,

			       cfg_base_addr_index) + cfg_offset,

				sizeof(h->cfgtable));

		cfg_base_addr_index) + cfg_offset, sizeof(h->cfgtable));

	if (!h->cfgtable)

		return -ENOMEM;

	/* Find performant mode table. */

	trans_offset = readl(&(h->cfgtable->TransMethodOffset));

	trans_offset = readl(&h->cfgtable->TransMethodOffset);

	h->transtable = remap_pci_mem(pci_resource_start(h->pdev,

				cfg_base_addr_index)+cfg_offset+trans_offset,

				sizeof(*h->transtable));