[dpdk-dev] 回复: [PATCH v1 1/2] net/i40e: improve performance for scalar Tx

[Feifei Wang]

Sorry for a mistake for the code, it should be:
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int n = txq->tx_rs_thresh;
 int32_t i = 0, j = 0;
const int32_t k = RTE_ALIGN_FLOOR(n, RTE_I40E_TX_MAX_FREE_BUF_SZ);
const int32_t m = n % RTE_I40E_TX_MAX_FREE_BUF_SZ; 
struct rte_mbuf *free[RTE_I40E_TX_MAX_FREE_BUF_SZ];

For FAST_FREE_MODE:

if (k) {
 	for (j = 0; j != k - RTE_I40E_TX_MAX_FREE_BUF_SZ;
 			j += RTE_I40E_TX_MAX_FREE_BUF_SZ) {
		for (i = 0; i <RTE_I40E_TX_MAX_FREE_BUF_SZ; ++i, ++txep) {
			free[i] = txep->mbuf;
			txep->mbuf = NULL;
		}
 		rte_mempool_put_bulk(free[0]->pool, (void **)free,
 					RTE_I40E_TX_MAX_FREE_BUF_SZ);
 	}
 } 

if (m) {
 	for (i = 0; i < m; ++i, ++txep) {
		free[i] = txep->mbuf;
 		txep->mbuf = NULL;
	}
 }
 rte_mempool_put_bulk(free[0]->pool, (void **)free, m); }
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