e1000e: power off PHY after reset when interface is down
Some Phys supported by the driver do not remain powered off across a reset
of the device when the interface is down, e.g. on 82571, but not on 82574.
This patch powers down (only when WoL is disabled) the PHY after a reset if
the interface is down and the ethtool diagnostics are not currently running.
The ethtool diagnostic function required a minor re-factor as a result, and
the e1000_[get|put]_hw_control() functions are renamed since they are no
longer static to netdev.c as they are needed by the ethtool diagnostics.
A couple minor whitespace issues were cleaned up, too.
Reported-by: Arthur Jones <ajones@riverbed.com>
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c
index c942cca..f8ed03d 100644
--- a/drivers/net/e1000e/ethtool.c
+++ b/drivers/net/e1000e/ethtool.c
@@ -1708,6 +1708,19 @@
bool if_running = netif_running(netdev);
set_bit(__E1000_TESTING, &adapter->state);
+
+ if (!if_running) {
+ /* Get control of and reset hardware */
+ if (adapter->flags & FLAG_HAS_AMT)
+ e1000e_get_hw_control(adapter);
+
+ e1000e_power_up_phy(adapter);
+
+ adapter->hw.phy.autoneg_wait_to_complete = 1;
+ e1000e_reset(adapter);
+ adapter->hw.phy.autoneg_wait_to_complete = 0;
+ }
+
if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
/* Offline tests */
@@ -1721,8 +1734,6 @@
if (if_running)
/* indicate we're in test mode */
dev_close(netdev);
- else
- e1000e_reset(adapter);
if (e1000_reg_test(adapter, &data[0]))
eth_test->flags |= ETH_TEST_FL_FAILED;
@@ -1736,8 +1747,6 @@
eth_test->flags |= ETH_TEST_FL_FAILED;
e1000e_reset(adapter);
- /* make sure the phy is powered up */
- e1000e_power_up_phy(adapter);
if (e1000_loopback_test(adapter, &data[3]))
eth_test->flags |= ETH_TEST_FL_FAILED;
@@ -1759,28 +1768,29 @@
if (if_running)
dev_open(netdev);
} else {
- if (!if_running && (adapter->flags & FLAG_HAS_AMT)) {
- clear_bit(__E1000_TESTING, &adapter->state);
- dev_open(netdev);
- set_bit(__E1000_TESTING, &adapter->state);
- }
+ /* Online tests */
e_info("online testing starting\n");
- /* Online tests */
- if (e1000_link_test(adapter, &data[4]))
- eth_test->flags |= ETH_TEST_FL_FAILED;
- /* Online tests aren't run; pass by default */
+ /* register, eeprom, intr and loopback tests not run online */
data[0] = 0;
data[1] = 0;
data[2] = 0;
data[3] = 0;
- if (!if_running && (adapter->flags & FLAG_HAS_AMT))
- dev_close(netdev);
+ if (e1000_link_test(adapter, &data[4]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
clear_bit(__E1000_TESTING, &adapter->state);
}
+
+ if (!if_running) {
+ e1000e_reset(adapter);
+
+ if (adapter->flags & FLAG_HAS_AMT)
+ e1000e_release_hw_control(adapter);
+ }
+
msleep_interruptible(4 * 1000);
}