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authorAuke Kok <auke-jan.h.kok@intel.com>2006-06-27 09:06:45 -0700
committerAuke Kok <juke-jan.h.kok@intel.com>2006-06-27 09:06:45 -0700
commit9a53a2029885e0088e9149679215b95d04deb57b (patch)
treee81f69cb79cc7f43332184b51c1213a14842dad9 /drivers/net/e1000/e1000_param.c
parent0cbabbb0725fa34a37d6b7870b2d2fe17d1a0a94 (diff)
downloadlinux-linaro-android-9a53a2029885e0088e9149679215b95d04deb57b.tar.gz
e1000: add smart power down code
Smart Power Down is a power saving feature in newer e1000 hardware. We disable it because it causes time to link to be long, but make it a user choice. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Diffstat (limited to 'drivers/net/e1000/e1000_param.c')
-rw-r--r--drivers/net/e1000/e1000_param.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/net/e1000/e1000_param.c b/drivers/net/e1000/e1000_param.c
index e55f8969a0f..a8d9295b077 100644
--- a/drivers/net/e1000/e1000_param.c
+++ b/drivers/net/e1000/e1000_param.c
@@ -183,6 +183,15 @@ E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay");
E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate");
+/* Enable Smart Power Down of the PHY
+ *
+ * Valid Range: 0, 1
+ *
+ * Default Value: 0 (disabled)
+ */
+
+E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down");
+
#define AUTONEG_ADV_DEFAULT 0x2F
#define AUTONEG_ADV_MASK 0x2F
#define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL
@@ -494,6 +503,22 @@ e1000_check_options(struct e1000_adapter *adapter)
adapter->itr = opt.def;
}
}
+ { /* Smart Power Down */
+ struct e1000_option opt = {
+ .type = enable_option,
+ .name = "PHY Smart Power Down",
+ .err = "defaulting to Disabled",
+ .def = OPTION_DISABLED
+ };
+
+ if (num_SmartPowerDownEnable > bd) {
+ int spd = SmartPowerDownEnable[bd];
+ e1000_validate_option(&spd, &opt, adapter);
+ adapter->smart_power_down = spd;
+ } else {
+ adapter->smart_power_down = opt.def;
+ }
+ }
switch (adapter->hw.media_type) {
case e1000_media_type_fiber: