netxen: to fix onchip memory access.

Remove unnecessary remap of the region in bar 0 to access onhip memory
for NX3031.

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 17 insertions, 25 deletions

diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c
index 87bc910f9772..be6398860781 100644
--- a/drivers/net/netxen/netxen_nic_hw.c
+++ b/drivers/net/netxen/netxen_nic_hw.c
@@ -32,7 +32,6 @@
 #define MASK(n) ((1ULL<<(n))-1)
 #define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | ((addr >> 25) & 0x3ff))
 #define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | ((addr >> 25) & 0x3ff))
-#define OCM_WIN_P3P(addr) (addr & 0xffc0000)
 #define MS_WIN(addr) (addr & 0x0ffc0000)
 
 #define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
@@ -1391,18 +1390,8 @@ netxen_nic_pci_set_window_2M(struct netxen_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;
-        }
-
-        if (NX_IS_REVISION_P3P(adapter->ahw.revision_id))
-                window = OCM_WIN_P3P(addr);
-        else
-                window = OCM_WIN(addr);
+        window = OCM_WIN(addr);
 
         writel(window, adapter->ahw.ocm_win_crb);
         /* read back to flush */
@@ -1419,7 +1408,7 @@ netxen_nic_pci_mem_access_direct(struct netxen_adapter *adapter, u64 off,
 {
         void __iomem *addr, *mem_ptr = NULL;
         resource_size_t mem_base;
-        int ret = -EIO;
+        int ret;
         u32 start;
 
         spin_lock(&adapter->ahw.mem_lock);
@@ -1428,20 +1417,23 @@ netxen_nic_pci_mem_access_direct(struct netxen_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);
+        if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
+                addr = adapter->ahw.pci_base0 + start;
+        } else {
+                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;
+                }
 
-        mem_ptr = ioremap(mem_base, PAGE_SIZE);
-        if (mem_ptr == NULL) {
-                ret = -EIO;
-                goto unlock;
+                addr = mem_ptr + (start & (PAGE_SIZE-1));
         }
-
-        addr = mem_ptr + (start & (PAGE_SIZE - 1));
-
 noremap:
         if (op == 0)    /* read */
                 *data = readq(addr);