[dpdk-dev] [PATCH] ixgbe: fix a x550 DCB issue

> > There's a DCB issue on x550. For 8 TCs, if a packet with user priority 6 or > > 7 is > > injected to the NIC, then the NIC will put 3 packets into the queue. There's > > also a similar issue for 4 TCs. > > The root cause is RXPBSIZE is not right. RXPBSIZE of x550 is 384. It's > > different >

[dpdk-dev] [PATCH] ixgbe: fix a x550 DCB issue

> -Original Message- > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Wenzhuo Lu > Sent: Wednesday, August 26, 2015 3:11 PM > To: dev at dpdk.org > Subject: [dpdk-dev] [PATCH] ixgbe: fix a x550 DCB issue > > There's a DCB issue on x550. For 8 TCs, if a

[dpdk-dev] [PATCH] ixgbe: fix a x550 DCB issue

There's a DCB issue on x550. For 8 TCs, if a packet with user priority 6 or 7 is injected to the NIC, then the NIC will put 3 packets into the queue. There's also a similar issue for 4 TCs. The root cause is RXPBSIZE is not right. RXPBSIZE of x550 is 384. It's different from other 10G NICs. We need