On 5/11/2017 12:51 PM, Gowrishankar wrote: > From: Gowrishankar Muthukrishnan <gowrishanka...@linux.vnet.ibm.com> > > In kni_allocate_mbufs(), we attempt to add max_burst (32) count of mbuf > always into alloc_q, which is excessively leading too many rte_pktmbuf_ > free() when alloc_q is contending at high packet rate (for eg 10Gig data). > In a situation when alloc_q fifo can only accommodate very few (or zero) > mbuf, create only what needed and add in fifo. > > With this patch, we could stop random network stall in KNI at higher packet > rate (eg 1G or 10G data between vEth0 and PMD) sufficiently exhausting > alloc_q on above condition. I tested i40e PMD for this purpose in ppc64le. > > Changes: > v2 - alloc_q free count calculation corrected. > line wrap fixed for commit message. > > Signed-off-by: Gowrishankar Muthukrishnan <gowrishanka...@linux.vnet.ibm.com>
Acked-by: Ferruh Yigit <ferruh.yi...@intel.com>
