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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 944b8be081
commit 33c1707a8e
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/intel/igc/igc_i225.c
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@@ -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);
}
}