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qlcnic: fix onchip memory access 

Fix incorrect offset calculation and remove unnecessary remap
of the region in bar 0 to access onchip memory.

This was leading to read incorrect values by debug tools.

Signed-off-by: Dhananjay Phadke <dhananjay.phadke@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dhananjay Phadke 2010-04-01 19:01:31 +00:00 committed by David S. Miller
parent b47acacd7c
commit 0c39aa4819
1 changed files with 2 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
drivers/net/qlcnic/qlcnic_hw.c
View File

@ -53,18 +53,6 @@ static inline void writeq(u64 val, void __iomem *addr)
}
#endif
#define PCI_OFFSET_FIRST_RANGE(adapter, off) \
((adapter)->ahw.pci_base0 + (off))
static void __iomem *pci_base_offset(struct qlcnic_adapter *adapter,
unsigned long off)
{
if (ADDR_IN_RANGE(off, FIRST_PAGE_GROUP_START, FIRST_PAGE_GROUP_END))
return PCI_OFFSET_FIRST_RANGE(adapter, off);
return NULL;
}
static const struct crb_128M_2M_block_map
crb_128M_2M_map[64] __cacheline_aligned_in_smp = {
{{{0, 0, 0, 0} } }, /* 0: PCI */
@ -871,13 +859,6 @@ qlcnic_pci_set_window_2M(struct qlcnic_adapter *adapter,
u64 addr, u32 *start)
{
u32 window;
struct pci_dev *pdev = adapter->pdev;
if ((addr & 0x00ff800) == 0xff800) {
if (printk_ratelimit())
dev_warn(&pdev->dev, "QM access not handled\n");
return -EIO;
}
window = OCM_WIN_P3P(addr);
@ -894,8 +875,7 @@ static int
qlcnic_pci_mem_access_direct(struct qlcnic_adapter *adapter, u64 off,
u64 *data, int op)
{
void __iomem *addr, *mem_ptr = NULL;
resource_size_t mem_base;
void __iomem *addr;
int ret;
u32 start;
@ -905,21 +885,8 @@ qlcnic_pci_mem_access_direct(struct qlcnic_adapter *adapter, u64 off,
if (ret != 0)
goto unlock;
addr = pci_base_offset(adapter, start);
if (addr)
goto noremap;
addr = adapter->ahw.pci_base0 + start;
mem_base = pci_resource_start(adapter->pdev, 0) + (start & PAGE_MASK);
mem_ptr = ioremap(mem_base, PAGE_SIZE);
if (mem_ptr == NULL) {
ret = -EIO;
goto unlock;
}
addr = mem_ptr + (start & (PAGE_SIZE - 1));
noremap:
if (op == 0) /* read */
*data = readq(addr);
else /* write */
@ -928,8 +895,6 @@ noremap:
unlock:
mutex_unlock(&adapter->ahw.mem_lock);
if (mem_ptr)
iounmap(mem_ptr);
return ret;
}