[dpdk-dev] [PATCH v4 0/2] provide rte_pktmbuf_alloc_bulk API and call it in vhost dequeue

[Huawei Xie <huawei.xie@intel.com>]

v4 changes:
 fix a silly typo in error handling when rte_pktmbuf_alloc fails

v3 changes:
 move while after case 0
 add context about duff's device and why we use while loop in the commit
message

v2 changes:
 unroll the loop in rte_pktmbuf_alloc_bulk to help the performance

For symmetric rte_pktmbuf_free_bulk, if the app knows in its scenarios
their mbufs are all simple mbufs, i.e meet the following requirements:
 * no multiple segments
 * not indirect mbuf
 * refcnt is 1
 * belong to the same mbuf memory pool,
it could directly call rte_mempool_put to free the bulk of mbufs,
otherwise rte_pktmbuf_free_bulk has to call rte_pktmbuf_free to free
the mbuf one by one.
This patchset will not provide this symmetric implementation.

Huawei Xie (2):
  mbuf: provide rte_pktmbuf_alloc_bulk API
  vhost: call rte_pktmbuf_alloc_bulk in vhost dequeue

 lib/librte_mbuf/rte_mbuf.h    | 49 +++++++++++++++++++++++++++++++++++++++++++
 lib/librte_vhost/vhost_rxtx.c | 35 +++++++++++++++++++------------
 2 files changed, 71 insertions(+), 13 deletions(-)

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1.8.1.4