From: Jijiang Liu <jijiang.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
To: dev-VfR2kkLFssw@public.gmane.org
Subject: [PATCH 5/6] i40e:support GRE tunnel TX checksum offload
Date: Mon, 26 Jan 2015 11:43:24 +0800 [thread overview]
Message-ID: <1422243805-10906-6-git-send-email-jijiang.liu@intel.com> (raw)
In-Reply-To: <1422243805-10906-1-git-send-email-jijiang.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Support NVGRE TX checksum offload, which includes
- outer L3(IP) checksum offload
- inner L3(IP) checksum offload
- inner L4(UDP, TCP and SCTP) checksum offload
In addition, for GRE packet, the L4 tunnel type should be I40E_TXD_CTX_GRE_TUNNELING.
Signed-off-by: Jijiang Liu <jijiang.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
lib/librte_pmd_i40e/i40e_rxtx.c | 13 ++++++++++---
1 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/lib/librte_pmd_i40e/i40e_rxtx.c b/lib/librte_pmd_i40e/i40e_rxtx.c
index 2beae3c..6c1e324 100644
--- a/lib/librte_pmd_i40e/i40e_rxtx.c
+++ b/lib/librte_pmd_i40e/i40e_rxtx.c
@@ -476,8 +476,15 @@ i40e_txd_enable_checksum(uint64_t ol_flags,
return;
}
- /* UDP tunneling packet TX checksum offload */
- if (unlikely(ol_flags & PKT_TX_UDP_TUNNEL_PKT)) {
+ /* UDP/GRE tunneling packet TX checksum offload */
+ if (unlikely(ol_flags & (PKT_TX_UDP_TUNNEL_PKT |
+ PKT_TX_GRE_TUNNEL_PKT))) {
+ uint32_t tunnel_flag;
+
+ if (ol_flags & PKT_TX_UDP_TUNNEL_PKT)
+ tunnel_flag = I40E_TXD_CTX_UDP_TUNNELING;
+ else
+ tunnel_flag = I40E_TXD_CTX_GRE_TUNNELING;
*td_offset |= (outer_l2_len >> 1)
<< I40E_TX_DESC_LENGTH_MACLEN_SHIFT;
@@ -492,7 +499,7 @@ i40e_txd_enable_checksum(uint64_t ol_flags,
/* Now set the ctx descriptor fields */
*cd_tunneling |= (outer_l3_len >> 2) <<
I40E_TXD_CTX_QW0_EXT_IPLEN_SHIFT |
- I40E_TXD_CTX_UDP_TUNNELING |
+ tunnel_flag |
(l2_len >> 1) <<
I40E_TXD_CTX_QW0_NATLEN_SHIFT;
--
1.7.7.6
next prev parent reply other threads:[~2015-01-26 3:43 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-26 3:43 [PATCH 0/6] Support NVGRE on i40e Jijiang Liu
[not found] ` <1422243805-10906-1-git-send-email-jijiang.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-01-26 3:43 ` [PATCH 1/6] librte_ether:add NVGRE header Jijiang Liu
2015-01-26 3:43 ` [PATCH 2/6] i40e:support RX tunnel filter for NVGRE packet Jijiang Liu
2015-01-26 3:43 ` [PATCH 3/6] app/testpmd:test " Jijiang Liu
2015-01-26 3:43 ` [PATCH 4/6] mbuf:add a GRE TX tunnel ol_flag Jijiang Liu
2015-01-26 3:43 ` Jijiang Liu [this message]
2015-01-26 3:43 ` [PATCH 6/6] app/testpmd:test NVGRE Tx checksum offload Jijiang Liu
2015-01-27 5:46 ` [PATCH 0/6] Support NVGRE on i40e Cao, Min
[not found] ` <B6059B2012717B4390714544B1F509E110E14555-0J0gbvR4kTggGBtAFL8yw7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
2015-01-28 11:08 ` Olivier MATZ
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