commit b7ee49db8b4b21dad3284d5507e7ea2946031f6e
author Jeff Kirsher <jeffrey.t.kirsher@intel.com> Thu Jan 12 16:51:21 2006 -0800
committer Jeff Garzik <jgarzik@pobox.com> Tue Jan 17 07:48:04 2006 -0500
tree 1608149c1afea7bb19888664f89d18c14e0d1e88
parent 72d64a436724da72f876c85a73895a622da6a673

[PATCH] e1000: Added hardware support for PCI express, 82546GB, and 82571 Fiber

Added 82571 fiber to WOL fix for dual port adapters.
Added support for 82546GB (Quad Copper).
Added PCIe typedef for x2, igp cable length 115, and extended TX CTRL registers.
Added parity error detection and PCIe CTRL registers.
Added EEPROM config registers.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

drivers/net/e1000/e1000_hw.c

diff --git a/drivers/net/e1000/e1000_hw.c b/drivers/net/e1000/e1000_hw.c
index ac227c7..2437d36 100644
--- a/drivers/net/e1000/e1000_hw.c
+++ b/drivers/net/e1000/e1000_hw.c
@@ -318,6 +318,8 @@
     case E1000_DEV_ID_82546GB_FIBER:
     case E1000_DEV_ID_82546GB_SERDES:
     case E1000_DEV_ID_82546GB_PCIE:
+    case E1000_DEV_ID_82546GB_QUAD_COPPER:
+    case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
         hw->mac_type = e1000_82546_rev_3;
         break;
     case E1000_DEV_ID_82541EI:
@@ -639,6 +641,7 @@
     uint16_t cmd_mmrbc;
     uint16_t stat_mmrbc;
     uint32_t mta_size;
+    uint32_t ctrl_ext;
 
     DEBUGFUNC("e1000_init_hw");
 
@@ -774,6 +777,15 @@
      */
     e1000_clear_hw_cntrs(hw);
 
+    if (hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER ||
+        hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3) {
+        ctrl_ext = E1000_READ_REG(hw, CTRL_EXT);
+        /* Relaxed ordering must be disabled to avoid a parity
+         * error crash in a PCI slot. */
+        ctrl_ext |= E1000_CTRL_EXT_RO_DIS;
+        E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext);
+    }
+
     return ret_val;
 }