e1000e: add support for new 82574L part

This new part has the same feature set as previous parts with the addition
of MSI-X support.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/drivers/net/e1000e/param.c b/drivers/net/e1000e/param.c
index ed912e023a72..f46db6cda487 100644
--- a/drivers/net/e1000e/param.c
+++ b/drivers/net/e1000e/param.c
@@ -114,6 +114,15 @@ E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate");
 #define DEFAULT_ITR 3
 #define MAX_ITR 100000
 #define MIN_ITR 100
+/* IntMode (Interrupt Mode)
+ *
+ * Valid Range: 0 - 2
+ *
+ * Default Value: 2 (MSI-X)
+ */
+E1000_PARAM(IntMode, "Interrupt Mode");
+#define MAX_INTMODE     2
+#define MIN_INTMODE     0
 
 /*
  * Enable Smart Power Down of the PHY
@@ -352,6 +361,24 @@ void __devinit e1000e_check_options(struct e1000_adapter *adapter)
                         adapter->itr = 20000;
                 }
         }
+        { /* Interrupt Mode */
+                struct e1000_option opt = {
+                        .type = range_option,
+                        .name = "Interrupt Mode",
+                        .err  = "defaulting to 2 (MSI-X)",
+                        .def  = E1000E_INT_MODE_MSIX,
+                        .arg  = { .r = { .min = MIN_INTMODE,
+                                         .max = MAX_INTMODE } }
+                };
+
+                if (num_IntMode > bd) {
+                        unsigned int int_mode = IntMode[bd];
+                        e1000_validate_option(&int_mode, &opt, adapter);
+                        adapter->int_mode = int_mode;
+                } else {
+                        adapter->int_mode = opt.def;
+                }
+        }
         { /* Smart Power Down */
                 const struct e1000_option opt = {
                         .type = enable_option,