Commit 1390a594 authored by John Fastabend's avatar John Fastabend Committed by Jeff Kirsher
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ixgbe: DCB, set minimum bandwidth per traffic class

DCB provides a guaranteed bandwidth in the case with 0%
bandwidth then no bandwidth is guaranteed. However the
traffic class should still be able to transmit traffic.
For this to work the traffic class must be given the
minimum credits required to send a frame.
Signed-off-by: default avatarJohn Fastabend <>
Tested-by: default avatarRoss Brattain <>
Signed-off-by: default avatarJeff Kirsher <>
parent 6fb456a0
......@@ -64,7 +64,7 @@ s32 ixgbe_ieee_credits(__u8 *bw, __u16 *refill, __u16 *max, int max_frame)
val = min_credit;
refill[i] = val;
max[i] = (bw[i] * MAX_CREDIT)/100;
max[i] = bw[i] ? (bw[i] * MAX_CREDIT)/100 : min_credit;
return 0;
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