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authorCarolyn Wyborny <carolyn.wyborny@intel.com>2010-10-12 22:27:02 +0000
committerDavid S. Miller <davem@davemloft.net>2010-10-14 10:49:44 -0700
commitcd2638a86c7b90e77ce623c09de2a26177f2a5c1 (patch)
tree53393f089bdacbdb054ce7c4d85252c1c4ac0e4b
parent5d5b7c39cfdc459c079ed75b65a537f40ffb82da (diff)
downloadlinux-cd2638a86c7b90e77ce623c09de2a26177f2a5c1.tar.bz2
igb: add check for fiber/serdes devices to igb_set_spd_dplx;
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/igb/igb_main.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 55edcb74abf4..5b04eff2fd23 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -6115,6 +6115,13 @@ int igb_set_spd_dplx(struct igb_adapter *adapter, u16 spddplx)
mac->autoneg = 0;
+ /* Fiber NIC's only allow 1000 Gbps Full duplex */
+ if ((adapter->hw.phy.media_type == e1000_media_type_internal_serdes) &&
+ spddplx != (SPEED_1000 + DUPLEX_FULL)) {
+ dev_err(&pdev->dev, "Unsupported Speed/Duplex configuration\n");
+ return -EINVAL;
+ }
+
switch (spddplx) {
case SPEED_10 + DUPLEX_HALF:
mac->forced_speed_duplex = ADVERTISE_10_HALF;