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Message-Id: <1299932428-3114-20-git-send-email-jeffrey.t.kirsher@intel.com> Date: Sat, 12 Mar 2011 04:20:26 -0800 From: Jeff Kirsher <jeffrey.t.kirsher@...el.com> To: davem@...emloft.net Cc: John Fastabend <john.r.fastabend@...el.com>, netdev@...r.kernel.org, gospo@...hat.com, bphilips@...ell.com, Jeff Kirsher <jeffrey.t.kirsher@...el.com> Subject: [net-next-2.6 19/21] ixgbe: DCB, set minimum bandwidth per traffic class From: John Fastabend <john.r.fastabend@...el.com> 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@...el.com> Tested-by: Ross Brattain <ross.b.brattain@...el.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com> --- drivers/net/ixgbe/ixgbe_dcb.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_dcb.c b/drivers/net/ixgbe/ixgbe_dcb.c index e7b551a..41c529f 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; } -- 1.7.4 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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