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ixgbe: Disable EEE for backplane X550EM_X

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From Zach:
Intel documentation indicates that backplane X550EM_X KR devices do not
support Energy Efficient Ethernet. Prior to this patch, X552 devices
(device ID 0x15AB) will crash the system when transitioning EEE state
via sysctl.

Signed-off-by: Zach Vargas <zvargas@xes-inc.com>

PR:		240320
Submitted by:	Zach Vargas <zvargas@xes-inc.com>
Reviewed by:	erj@
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D21673
This commit is contained in:
Eric Joyner 2019-10-15 21:56:19 +00:00
parent 4b25d1f2e3
commit d61b6a41dd
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=353599
1 changed files with 1 additions and 3 deletions
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4
sys/dev/ixgbe/if_ix.c
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@ -4414,7 +4414,7 @@ ixgbe_sysctl_eee_state(SYSCTL_HANDLER_ARGS)
if ((new_eee < 0) || (new_eee > 1))
return (EINVAL);
retval = adapter->hw.mac.ops.setup_eee(&adapter->hw, new_eee);
retval = ixgbe_setup_eee(&adapter->hw, new_eee);
if (retval) {
device_printf(dev, "Error in EEE setup: 0x%08X\n", retval);
return (EINVAL);
@ -4467,8 +4467,6 @@ ixgbe_init_device_features(struct adapter *adapter)
case ixgbe_mac_X550EM_x:
adapter->feat_cap |= IXGBE_FEATURE_SRIOV;
adapter->feat_cap |= IXGBE_FEATURE_FDIR;
if (adapter->hw.device_id == IXGBE_DEV_ID_X550EM_X_KR)
adapter->feat_cap |= IXGBE_FEATURE_EEE;
break;
case ixgbe_mac_X550EM_a:
adapter->feat_cap |= IXGBE_FEATURE_SRIOV;