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| author |   Luca Boccassi <luca.boccassi@gmail.com> | 2017-12-08 17:16:13 +0000 |
|---|---|---|
| committer | Luca Boccassi <luca.boccassi@gmail.com> | 2017-12-08 17:16:56 +0000 |
| commit | 47d9763a1dd3103d732da9eec350cfc1cd784717 (patch) | |
| tree | e44976be8d0ddfb4a054556d07b3b6036cf88e87 /drivers/net/i40e/i40e_rxtx_vec_neon.c | |
| parent | fdd2322bb45e83d3fd96b06ea32a4afbb60bcb6f (diff) | |
New upstream version 16.11.4
Change-Id: I733e0292d2e060161d148b3e114065d00b36d2ba
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'drivers/net/i40e/i40e_rxtx_vec_neon.c')
| -rw-r--r-- | drivers/net/i40e/i40e_rxtx_vec_neon.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/net/i40e/i40e_rxtx_vec_neon.c b/drivers/net/i40e/i40e_rxtx_vec_neon.c index d235daa7..557593a4 100644 --- a/drivers/net/i40e/i40e_rxtx_vec_neon.c +++ b/drivers/net/i40e/i40e_rxtx_vec_neon.c @@ -192,8 +192,7 @@ desc_to_olflags_v(uint64x2_t descs[4], struct rte_mbuf **rx_pkts) #endif #define PKTLEN_SHIFT 10 - -#define I40E_VPMD_DESC_DD_MASK 0x0001000100010001ULL +#define I40E_UINT16_BIT (CHAR_BIT * sizeof(uint16_t)) static inline void desc_to_ptype_v(uint64x2_t descs[4], struct rte_mbuf **rx_pkts) @@ -224,7 +223,6 @@ _recv_raw_pkts_vec(struct i40e_rx_queue *rxq, struct rte_mbuf **rx_pkts, struct i40e_rx_entry *sw_ring; uint16_t nb_pkts_recd; int pos; - uint64_t var; /* mask to shuffle from desc. to mbuf */ uint8x16_t shuf_msk = { @@ -357,7 +355,6 @@ _recv_raw_pkts_vec(struct i40e_rx_queue *rxq, struct rte_mbuf **rx_pkts, /* C.2 get 4 pkts staterr value */ staterr = vzipq_u16(sterr_tmp1.val[1], sterr_tmp2.val[1]).val[0]; - stat = vgetq_lane_u64(vreinterpretq_u64_u16(staterr), 0); desc_to_olflags_v(descs, &rx_pkts[pos]); @@ -422,6 +419,12 @@ _recv_raw_pkts_vec(struct i40e_rx_queue *rxq, struct rte_mbuf **rx_pkts, rx_pkts[pos + 3]->next = NULL; } + staterr = vshlq_n_u16(staterr, I40E_UINT16_BIT - 1); + staterr = vreinterpretq_u16_s16( + vshrq_n_s16(vreinterpretq_s16_u16(staterr), + I40E_UINT16_BIT - 1)); + stat = ~vgetq_lane_u64(vreinterpretq_u64_u16(staterr), 0); + rte_prefetch_non_temporal(rxdp + RTE_I40E_DESCS_PER_LOOP); /* D.3 copy final 1,2 data to rx_pkts */ @@ -431,10 +434,12 @@ _recv_raw_pkts_vec(struct i40e_rx_queue *rxq, struct rte_mbuf **rx_pkts, pkt_mb1); desc_to_ptype_v(descs, &rx_pkts[pos]); /* C.4 calc avaialbe number of desc */ - var = __builtin_popcountll(stat & I40E_VPMD_DESC_DD_MASK); - nb_pkts_recd += var; - if (likely(var != RTE_I40E_DESCS_PER_LOOP)) + if (unlikely(stat == 0)) { + nb_pkts_recd += RTE_I40E_DESCS_PER_LOOP; + } else { + nb_pkts_recd += __builtin_ctzl(stat) / I40E_UINT16_BIT; break; + } } /* Update our internal tail pointer */ |