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From: Feifei Wang <feifei.wang2@arm.com>
To: Jerin Jacob <jerinj@marvell.com>,
	Ruifeng Wang <ruifeng.wang@arm.com>, Jeff Guo <jia.guo@intel.com>,
	Haiyue Wang <haiyue.wang@intel.com>
Cc: dev@dpdk.org, nd@arm.com, Feifei Wang <feifei.wang2@arm.com>
Subject: [dpdk-dev] [PATCH v2 3/4] net/ixgbe: support good checksum flag for NEON vector
Date: Wed, 18 Nov 2020 04:48:58 -0600
Message-ID: <20201118104859.29047-4-feifei.wang2@arm.com> (raw)
In-Reply-To: <20201118104859.29047-1-feifei.wang2@arm.com>

Add CKSUM_GOOD flag to distinguish a good checksum from an unknown one
in neon vertor RX function.

Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
---
 drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c | 37 +++++++++++++++++--------
 1 file changed, 25 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c b/drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c
index 4d6f057e7..b2bee2228 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c
@@ -86,13 +86,13 @@ desc_to_olflags_v(uint8x16x2_t sterr_tmp1, uint8x16x2_t sterr_tmp2,
 		  uint8x16_t staterr, uint8_t vlan_flags, struct rte_mbuf **rx_pkts)
 {
 	uint8x16_t ptype;
-	uint8x16_t vtag;
+	uint8x16_t vtag_lo, vtag_hi, vtag;
 	uint8x16_t temp_csum;
 	uint32x4_t csum = {0, 0, 0, 0};
 
 	union {
-		uint8_t e[4];
-		uint32_t word;
+		uint16_t e[4];
+		uint64_t word;
 	} vol;
 
 	const uint8x16_t rsstype_msk = {
@@ -119,18 +119,26 @@ desc_to_olflags_v(uint8x16x2_t sterr_tmp1, uint8x16x2_t sterr_tmp2,
 			(IXGBE_RXDADV_ERR_TCPE | IXGBE_RXDADV_ERR_IPE) >> 24};
 
 	/* map vlan present (0x8), IPE (0x2), L4E (0x1) to ol_flags */
-	const uint8x16_t vlan_csum_map = {
-			0,
-			PKT_RX_L4_CKSUM_BAD,
+	const uint8x16_t vlan_csum_map_lo = {
+			PKT_RX_IP_CKSUM_GOOD,
+			PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD,
 			PKT_RX_IP_CKSUM_BAD,
 			PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD,
 			0, 0, 0, 0,
-			vlan_flags,
-			vlan_flags | PKT_RX_L4_CKSUM_BAD,
+			vlan_flags | PKT_RX_IP_CKSUM_GOOD,
+			vlan_flags | PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD,
 			vlan_flags | PKT_RX_IP_CKSUM_BAD,
 			vlan_flags | PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD,
 			0, 0, 0, 0};
 
+	const uint8x16_t vlan_csum_map_hi = {
+			PKT_RX_L4_CKSUM_GOOD >> sizeof(uint8_t), 0,
+			PKT_RX_L4_CKSUM_GOOD >> sizeof(uint8_t), 0,
+			0, 0, 0, 0,
+			PKT_RX_L4_CKSUM_GOOD >> sizeof(uint8_t), 0,
+			PKT_RX_L4_CKSUM_GOOD >> sizeof(uint8_t), 0,
+			0, 0, 0, 0};
+
 	ptype = vzipq_u8(sterr_tmp1.val[0], sterr_tmp2.val[0]).val[0];
 	ptype = vandq_u8(ptype, rsstype_msk);
 	ptype = vqtbl1q_u8(rss_flags, ptype);
@@ -150,11 +158,16 @@ desc_to_olflags_v(uint8x16x2_t sterr_tmp1, uint8x16x2_t sterr_tmp2,
 	csum = vsetq_lane_u32(vgetq_lane_u32(vreinterpretq_u32_u8(temp_csum), 3), csum, 0);
 	vtag = vorrq_u8(vreinterpretq_u8_u32(csum), vtag);
 
-	/* convert VP, IPE, L4E to ol_flags */
-	vtag = vqtbl1q_u8(vlan_csum_map, vtag);
-	vtag = vorrq_u8(ptype, vtag);
+	/* convert L4 checksum correct type to vtag_hi */
+	vtag_hi = vqtbl1q_u8(vlan_csum_map_hi, vtag);
+	vtag_hi = vshrq_n_u8(vtag_hi, 7);
+
+	/* convert VP, IPE, L4E to vtag_lo */
+	vtag_lo = vqtbl1q_u8(vlan_csum_map_lo, vtag);
+	vtag_lo = vorrq_u8(ptype, vtag_lo);
 
-	vol.word = vgetq_lane_u32(vreinterpretq_u32_u8(vtag), 0);
+	vtag = vzipq_u8(vtag_lo, vtag_hi).val[0];
+	vol.word = vgetq_lane_u64(vreinterpretq_u64_u8(vtag), 0);
 
 	rx_pkts[0]->ol_flags = vol.e[0];
 	rx_pkts[1]->ol_flags = vol.e[1];
-- 
2.17.1


  parent reply	other threads:[~2020-11-18 10:50 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-18  7:35 [dpdk-dev] [PATCH v1 0/4] Enable Checksum Offloading " Feifei Wang
2020-11-18  7:35 ` [dpdk-dev] [PATCH v1 1/4] net/ixgbe: add VLAN stripping support for Arm Feifei Wang
2020-11-18  8:34   ` Wang, Haiyue
2020-11-18 10:51     ` [dpdk-dev] 回复: " Feifei Wang
2020-11-18  7:35 ` [dpdk-dev] [PATCH v1 2/4] net/ixgbe: support checksum flags for NEON vector Feifei Wang
2020-11-18  7:35 ` [dpdk-dev] [PATCH v1 3/4] net/ixgbe: implement good checksum flag " Feifei Wang
2020-11-18  7:35 ` [dpdk-dev] [PATCH v1 4/4] net/ixgbe: enable IXGBE NEON vector PMD when CHECKSUM is set Feifei Wang
2020-11-18 10:48 ` [dpdk-dev] [PATCH v2 0/4] Enable Checksum Offloading for NEON vector Feifei Wang
2020-11-18 10:48   ` [dpdk-dev] [PATCH v2 1/4] net/ixgbe: add new flag of stripped VLAN " Feifei Wang
2020-11-18 11:51     ` Wang, Haiyue
2020-11-18 10:48   ` [dpdk-dev] [PATCH v2 2/4] net/ixgbe: support bad checksum flag " Feifei Wang
2020-11-18 11:51     ` Wang, Haiyue
2020-11-18 10:48   ` Feifei Wang [this message]
2020-11-18 11:51     ` [dpdk-dev] [PATCH v2 3/4] net/ixgbe: support good " Wang, Haiyue
2020-11-18 10:48   ` [dpdk-dev] [PATCH v2 4/4] net/ixgbe: enable IXGBE NEON vector when need to checksum Feifei Wang
2020-11-18 11:51     ` Wang, Haiyue
2020-12-11 12:06   ` [dpdk-dev] [PATCH v2 0/4] Enable Checksum Offloading for NEON vector Ferruh Yigit

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