Add DPDK patches for i40e vPMD (ptype and ip checksum offload)
Change-Id: Idf38ee8f8cfc31be62fcf0b828832b2f06876815
Signed-off-by: Damjan Marion <damarion@cisco.com>
diff --git a/dpdk/dpdk-16.04_patches/0029-i40e-Enable-bad-checksum-flags-in-i40e-vPMD.patch b/dpdk/dpdk-16.04_patches/0029-i40e-Enable-bad-checksum-flags-in-i40e-vPMD.patch
new file mode 100644
index 0000000..9b0f064
--- /dev/null
+++ b/dpdk/dpdk-16.04_patches/0029-i40e-Enable-bad-checksum-flags-in-i40e-vPMD.patch
@@ -0,0 +1,114 @@
+From ff4d874754e5e420671cc78d82829cd7317542ad Mon Sep 17 00:00:00 2001
+From: Damjan Marion <damarion@cisco.com>
+Date: Thu, 14 Jul 2016 09:59:02 -0700
+Subject: [PATCH 29/29] i40e: Enable bad checksum flags in i40e vPMD
+
+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>
+---
+ drivers/net/i40e/i40e_rxtx_vec.c | 55 +++++++++++++++++++++++-----------------
+ 1 file changed, 32 insertions(+), 23 deletions(-)
+
+diff --git a/drivers/net/i40e/i40e_rxtx_vec.c b/drivers/net/i40e/i40e_rxtx_vec.c
+index defa581..09ec6e6 100644
+--- a/drivers/net/i40e/i40e_rxtx_vec.c
++++ b/drivers/net/i40e/i40e_rxtx_vec.c
+@@ -138,18 +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 and vlan flags
+- *bit2 is for vlan tag, bits 13:12 for rss
+- */
+- const __m128i rss_vlan_msk = _mm_set_epi16(
+- 0x0000, 0x0000, 0x0000, 0x0000,
+- 0x3004, 0x3004, 0x3004, 0x3004);
++ /* 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_epi32(
++ 0x1c03004, 0x1c03004, 0x1c03004, 0x1c03004);
+
+ /* map rss and vlan type to rss hash and vlan flag */
+ const __m128i vlan_flags = _mm_set_epi8(0, 0, 0, 0,
+@@ -162,23 +158,36 @@ desc_to_olflags_v(__m128i descs[4], struct rte_mbuf **rx_pkts)
+ 0, 0, 0, 0,
+ PKT_RX_FDIR, 0, PKT_RX_RSS_HASH, 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, 12);
++ rss = _mm_srli_epi32(vlan1, 12);
+ 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)
+@@ -770,7 +779,8 @@ 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
+
+@@ -781,8 +791,7 @@ 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;
+--
+2.7.4
+