From 0c39aa4819fab75dcce0b1a9d99dcac0d85274f6 Mon Sep 17 00:00:00 2001 From: Dhananjay Phadke Date: Thu, 1 Apr 2010 19:01:31 +0000 Subject: [PATCH] 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 Signed-off-by: Amit Kumar Salecha Signed-off-by: David S. Miller --- drivers/net/qlcnic/qlcnic_hw.c | 39 ++------------------------------------- 1 file changed, 2 insertions(+), 37 deletions(-) diff --git a/drivers/net/qlcnic/qlcnic_hw.c b/drivers/net/qlcnic/qlcnic_hw.c index 419f46e..0933c2d 100644 --- a/drivers/net/qlcnic/qlcnic_hw.c +++ b/drivers/net/qlcnic/qlcnic_hw.c @@ -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; - - 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)); + addr = adapter->ahw.pci_base0 + start; -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; } -- 2.7.4