[v4,1/2] net/i40e: replace put function
Checks
Commit Message
Integrated zero-copy put API in mempool cache in i40e PMD.
On Ampere Altra server, l3fwd single core's performance improves by 5%
with the new API
Signed-off-by: Kamalakshitha Aligeri <kamalakshitha.aligeri@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Morten Brørup <mb@smartsharesystems.com>
---
Depends-on: series-26984 ("[v9] mempool cache: add zero-copy get and put functions")
.mailmap | 1 +
drivers/net/i40e/i40e_rxtx_vec_common.h | 27 ++++++++++++++++++++-----
2 files changed, 23 insertions(+), 5 deletions(-)
--
2.25.1
@@ -670,6 +670,7 @@ Kai Ji <kai.ji@intel.com>
Kaiwen Deng <kaiwenx.deng@intel.com>
Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Kamalakannan R <kamalakannan.r@intel.com>
+Kamalakshitha Aligeri <kamalakshitha.aligeri@arm.com>
Kamil Bednarczyk <kamil.bednarczyk@intel.com>
Kamil Chalupnik <kamilx.chalupnik@intel.com>
Kamil Rytarowski <kamil.rytarowski@caviumnetworks.com>
@@ -95,18 +95,35 @@ i40e_tx_free_bufs(struct i40e_tx_queue *txq)
n = txq->tx_rs_thresh;
- /* first buffer to free from S/W ring is at index
- * tx_next_dd - (tx_rs_thresh-1)
- */
+ /* first buffer to free from S/W ring is at index
+ * tx_next_dd - (tx_rs_thresh-1)
+ */
txep = &txq->sw_ring[txq->tx_next_dd - (n - 1)];
if (txq->offloads & RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE) {
+ struct rte_mempool *mp = txep[0].mbuf->pool;
+ struct rte_mempool_cache *cache = rte_mempool_default_cache(mp, rte_lcore_id());
+ void **cache_objs;
+
+ if (unlikely(!cache))
+ goto fallback;
+
+ cache_objs = rte_mempool_cache_zc_put_bulk(cache, mp, n);
+ if (unlikely(!cache_objs))
+ goto fallback;
+
for (i = 0; i < n; i++) {
- free[i] = txep[i].mbuf;
+ cache_objs[i] = txep[i].mbuf;
/* no need to reset txep[i].mbuf in vector path */
}
- rte_mempool_put_bulk(free[0]->pool, (void **)free, n);
goto done;
+
+fallback:
+ for (i = 0; i < n; i++)
+ free[i] = txep[i].mbuf;
+ rte_mempool_generic_put(mp, (void **)free, n, cache);
+ goto done;
+
}
m = rte_pktmbuf_prefree_seg(txep[0].mbuf);