cxgb3 - T3B2 pcie config space

T3B2 does not lose its pcie config space on reset.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index 983ee813c7e4..791ed6dc1943 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -3244,15 +3244,17 @@ void early_hw_init(struct adapter *adapter, const struct adapter_info *ai)
 }
 
 /*
- * Reset the adapter.  PCIe cards lose their config space during reset, PCI-X
+ * Reset the adapter. 
+ * Older PCIe cards lose their config space during reset, PCI-X
  * ones don't.
  */
 int t3_reset_adapter(struct adapter *adapter)
 {
-        int i;
+        int i, save_and_restore_pcie = 
+            adapter->params.rev < T3_REV_B2 && is_pcie(adapter);
         uint16_t devid = 0;
 
-        if (is_pcie(adapter))
+        if (save_and_restore_pcie)
                 pci_save_state(adapter->pdev);
         t3_write_reg(adapter, A_PL_RST, F_CRSTWRM | F_CRSTWRMMODE);
 
@@ -3270,7 +3272,7 @@ int t3_reset_adapter(struct adapter *adapter)
         if (devid != 0x1425)
                 return -1;
 
-        if (is_pcie(adapter))
+        if (save_and_restore_pcie)
                 pci_restore_state(adapter->pdev);
         return 0;
 }