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igc: Fix typo in i225 LTR functions

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[ Upstream commit 0182d1f3fa ]

The LTR maximum value was incorrectly written using the scale from
the LTR minimum value. This would cause incorrect values to be sent,
in cases where the initial calculation lead to different min/max scales.

Fixes: 707abf0695 ("igc: Add initial LTR support")
Suggested-by: Dima Ruinskiy <dima.ruinskiy@intel.com>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Nechama Kraus <nechamax.kraus@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sasha Neftin 2021-11-02 09:20:06 +02:00 committed by Greg Kroah-Hartman
parent 74a16e062b
commit 776ed8b366
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/intel/igc/igc_i225.c
View file

@ -636,7 +636,7 @@ s32 igc_set_ltr_i225(struct igc_hw *hw, bool link)
ltrv = rd32(IGC_LTRMAXV);
if (ltr_max != (ltrv & IGC_LTRMAXV_LTRV_MASK)) {
ltrv = IGC_LTRMAXV_LSNP_REQ | ltr_max |
(scale_min << IGC_LTRMAXV_SCALE_SHIFT);
(scale_max << IGC_LTRMAXV_SCALE_SHIFT);
wr32(IGC_LTRMAXV, ltrv);
}
}