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authorJohn Fastabend <john.r.fastabend@intel.com>2011-03-09 04:46:16 +0000
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-03-12 04:14:48 -0800
commit1390a59452a0895d3fea5b5504fa75ba36c13a74 (patch)
tree8535968cc4b9c6acfbc28cef156477b094b139ea /drivers
parent6fb456a07c68913516da9de90d3849ee9821dea8 (diff)
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: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ixgbe/ixgbe_dcb.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ixgbe/ixgbe_dcb.c b/drivers/net/ixgbe/ixgbe_dcb.c
index e7b551af573d..41c529fac0ab 100644
--- a/drivers/net/ixgbe/ixgbe_dcb.c
+++ b/drivers/net/ixgbe/ixgbe_dcb.c
@@ -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;
}