net/i40e: enable bad checksum flags in vector Rx

Decode the checksum flags from the Rx descriptor, setting
the appropriate bit in the mbuf ol_flags field when the flag
indicates a bad checksum.

Signed-off-by: Damjan Marion <damarion@cisco.com>
Signed-off-by: Jeff Shaw <jeffrey.b.shaw@intel.com>
Acked-by: Jing Chen <jing.d.chen@intel.com>

diff --git a/drivers/net/i40e/i40e_rxtx_vec.c b/drivers/net/i40e/i40e_rxtx_vec.c
index e429c02..0ee0241 100644 (file)
--- a/drivers/net/i40e/i40e_rxtx_vec.c
+++ b/drivers/net/i40e/i40e_rxtx_vec.c
@@ -138,19 +138,14 @@ i40e_rxq_rearm(struct i40e_rx_queue *rxq)
 static inline void
 desc_to_olflags_v(__m128i descs[4], struct rte_mbuf **rx_pkts)
 {
-       __m128i vlan0, vlan1, rss;
-       union {
-               uint16_t e[4];
-               uint64_t dword;
-       } vol;
+       __m128i vlan0, vlan1, rss, l3_l4e;
 
        /* mask everything except RSS, flow director and VLAN flags
         * bit2 is for VLAN tag, bit11 for flow director indication
         * bit13:12 for RSS indication.
         */
-       const __m128i rss_vlan_msk = _mm_set_epi16(
-                       0x0000, 0x0000, 0x0000, 0x0000,
-                       0x3804, 0x3804, 0x3804, 0x3804);
+       const __m128i rss_vlan_msk = _mm_set_epi32(
+                       0x1c03804, 0x1c03804, 0x1c03804, 0x1c03804);
 
        /* map rss and vlan type to rss hash and vlan flag */
        const __m128i vlan_flags = _mm_set_epi8(0, 0, 0, 0,
@@ -163,23 +158,36 @@ desc_to_olflags_v(__m128i descs[4], struct rte_mbuf **rx_pkts)
                        PKT_RX_RSS_HASH | PKT_RX_FDIR, PKT_RX_RSS_HASH, 0, 0,
                        0, 0, PKT_RX_FDIR, 0);
 
-       vlan0 = _mm_unpackhi_epi16(descs[0], descs[1]);
-       vlan1 = _mm_unpackhi_epi16(descs[2], descs[3]);
-       vlan0 = _mm_unpacklo_epi32(vlan0, vlan1);
+       const __m128i l3_l4e_flags = _mm_set_epi8(0, 0, 0, 0, 0, 0, 0, 0,
+                       PKT_RX_EIP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD | PKT_RX_IP_CKSUM_BAD,
+                       PKT_RX_EIP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD,
+                       PKT_RX_EIP_CKSUM_BAD | PKT_RX_IP_CKSUM_BAD,
+                       PKT_RX_EIP_CKSUM_BAD,
+                       PKT_RX_L4_CKSUM_BAD | PKT_RX_IP_CKSUM_BAD,
+                       PKT_RX_L4_CKSUM_BAD,
+                       PKT_RX_IP_CKSUM_BAD,
+                       0);
+
+       vlan0 = _mm_unpackhi_epi32(descs[0], descs[1]);
+       vlan1 = _mm_unpackhi_epi32(descs[2], descs[3]);
+       vlan0 = _mm_unpacklo_epi64(vlan0, vlan1);
 
        vlan1 = _mm_and_si128(vlan0, rss_vlan_msk);
        vlan0 = _mm_shuffle_epi8(vlan_flags, vlan1);
 
-       rss = _mm_srli_epi16(vlan1, 11);
+       rss = _mm_srli_epi32(vlan1, 11);
        rss = _mm_shuffle_epi8(rss_flags, rss);
 
+       l3_l4e = _mm_srli_epi32(vlan1, 22);
+       l3_l4e = _mm_shuffle_epi8(l3_l4e_flags, l3_l4e);
+
        vlan0 = _mm_or_si128(vlan0, rss);
-       vol.dword = _mm_cvtsi128_si64(vlan0);
+       vlan0 = _mm_or_si128(vlan0, l3_l4e);
 
-       rx_pkts[0]->ol_flags = vol.e[0];
-       rx_pkts[1]->ol_flags = vol.e[1];
-       rx_pkts[2]->ol_flags = vol.e[2];
-       rx_pkts[3]->ol_flags = vol.e[3];
+       rx_pkts[0]->ol_flags = _mm_extract_epi16(vlan0, 0);
+       rx_pkts[1]->ol_flags = _mm_extract_epi16(vlan0, 2);
+       rx_pkts[2]->ol_flags = _mm_extract_epi16(vlan0, 4);
+       rx_pkts[3]->ol_flags = _mm_extract_epi16(vlan0, 6);
 }
 #else
 #define desc_to_olflags_v(desc, rx_pkts) do {} while (0)
@@ -766,7 +774,8 @@ i40e_rx_vec_dev_conf_condition_check(struct rte_eth_dev *dev)
 #ifndef RTE_LIBRTE_I40E_RX_OLFLAGS_ENABLE
        /* whithout rx ol_flags, no VP flag report */
        if (rxmode->hw_vlan_strip != 0 ||
-           rxmode->hw_vlan_extend != 0)
+           rxmode->hw_vlan_extend != 0 ||
+           rxmode->hw_ip_checksum != 0)
                return -1;
 #endif
 
@@ -777,8 +786,7 @@ i40e_rx_vec_dev_conf_condition_check(struct rte_eth_dev *dev)
         /* - no csum error report support
         * - no header split support
         */
-       if (rxmode->hw_ip_checksum == 1 ||
-           rxmode->header_split == 1)
+       if (rxmode->header_split == 1)
                return -1;
 
        return 0;