[Intel-wired-lan] [net 3/6] ice: report correct max number of TCs

Tony Nguyen anthony.l.nguyen at intel.com
Wed Sep 2 15:53:44 UTC 2020

From: Dave Ertman <david.m.ertman at intel.com>

In the driver currently, we are reporting max number of TCs
to the DCBNL callback as a kernel define set to 8.  This is
preventing userspace applications performing DCBx to correctly
down map the TCs from requested to actual values.

Report the actual max TC value to userspace from the capability

Fixes: b94b013eb626 ("ice: Implement DCBNL support")
Signed-off-by: Dave Ertman <david.m.ertman at intel.com>
 drivers/net/ethernet/intel/ice/ice_dcb_nl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_dcb_nl.c b/drivers/net/ethernet/intel/ice/ice_dcb_nl.c
index 87f91b750d59..842d44b63480 100644
--- a/drivers/net/ethernet/intel/ice/ice_dcb_nl.c
+++ b/drivers/net/ethernet/intel/ice/ice_dcb_nl.c
@@ -136,7 +136,7 @@ ice_dcbnl_getnumtcs(struct net_device *dev, int __always_unused tcid, u8 *num)
 	if (!test_bit(ICE_FLAG_DCB_CAPABLE, pf->flags))
 		return -EINVAL;
-	*num = IEEE_8021QAZ_MAX_TCS;
+	*num = pf->hw.func_caps.common_cap.maxtc;
 	return 0;

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