[dpdk-dev] : ixgbe: why bulk allocation is not used for a scattered Rx flow?

2015-02-25 Thread Vlad Zolotarov
On 02/25/15 13:02, Bruce Richardson wrote: > On Wed, Feb 25, 2015 at 11:40:36AM +0200, Vlad Zolotarov wrote: >> Hi, I have a question about the "scattered Rx" feature: why enabling it >> disabled "bulk allocation" feature? > The "bulk-allocation" feature is one where a more optimized RX code path

[dpdk-dev] : ixgbe: why bulk allocation is not used for a scattered Rx flow?

2015-02-25 Thread Vlad Zolotarov
Hi, I have a question about the "scattered Rx" feature: why enabling it disabled "bulk allocation" feature? There is some unclear comment in the ixgbe_recv_scattered_pkts(): /* * Descriptor done. * * Allocate a new mbuf to

[dpdk-dev] : ixgbe: why bulk allocation is not used for a scattered Rx flow?

2015-02-25 Thread Bruce Richardson
On Wed, Feb 25, 2015 at 11:40:36AM +0200, Vlad Zolotarov wrote: > Hi, I have a question about the "scattered Rx" feature: why enabling it > disabled "bulk allocation" feature? The "bulk-allocation" feature is one where a more optimized RX code path is used. For the sake of performance, when doing