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From: Tiwei Bie <tiwei.bie@intel.com>
To: dev@dpdk.org
Cc: adrien.mazarguil@6wind.com, wenzhuo.lu@intel.com, john.mcnamara@intel.com,
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Date: Wed, 11 Jan 2017 12:31:33 +0800
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Subject: [dpdk-dev] [PATCH v6 1/6] mbuf: add flag for MACsec
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Add a new Tx flag in mbuf, that can be set by applications to
enable the MACsec offload for a packet to be transmitted.
Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
---
doc/guides/rel_notes/release_17_02.rst | 5 +++++
lib/librte_mbuf/rte_mbuf.c | 2 ++
lib/librte_mbuf/rte_mbuf.h | 6 ++++++
3 files changed, 13 insertions(+)
diff --git a/doc/guides/rel_notes/release_17_02.rst b/doc/guides/rel_notes/release_17_02.rst
index 180af82..3958714 100644
--- a/doc/guides/rel_notes/release_17_02.rst
+++ b/doc/guides/rel_notes/release_17_02.rst
@@ -52,6 +52,11 @@ New Features
See the :ref:`Generic flow API <Generic_flow_API>` documentation for more
information.
+* **Improved offload support in mbuf.**
+
+ Added a new Tx mbuf flag for MACsec, which can be set by applications
+ to enable the MACsec offload for the packets to be transmitted.
+
Resolved Issues
---------------
diff --git a/lib/librte_mbuf/rte_mbuf.c b/lib/librte_mbuf/rte_mbuf.c
index 63f43c8..72ad91e 100644
--- a/lib/librte_mbuf/rte_mbuf.c
+++ b/lib/librte_mbuf/rte_mbuf.c
@@ -404,6 +404,7 @@ const char *rte_get_tx_ol_flag_name(uint64_t mask)
case PKT_TX_TUNNEL_GRE: return "PKT_TX_TUNNEL_GRE";
case PKT_TX_TUNNEL_IPIP: return "PKT_TX_TUNNEL_IPIP";
case PKT_TX_TUNNEL_GENEVE: return "PKT_TX_TUNNEL_GENEVE";
+ case PKT_TX_MACSEC: return "PKT_TX_MACSEC";
default: return NULL;
}
}
@@ -434,6 +435,7 @@ rte_get_tx_ol_flag_list(uint64_t mask, char *buf, size_t buflen)
"PKT_TX_TUNNEL_NONE" },
{ PKT_TX_TUNNEL_GENEVE, PKT_TX_TUNNEL_MASK,
"PKT_TX_TUNNEL_NONE" },
+ { PKT_TX_MACSEC, PKT_TX_MACSEC, NULL },
};
const char *name;
unsigned int i;
diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 4476d75..ffbb4b3 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -182,6 +182,12 @@ extern "C" {
/* add new TX flags here */
/**
+ * Offload the MACsec. This flag must be set by the application to enable
+ * this offload feature for a packet to be transmitted.
+ */
+#define PKT_TX_MACSEC (1ULL << 44)
+
+/**
* Bits 45:48 used for the tunnel type.
* When doing Tx offload like TSO or checksum, the HW needs to configure the
* tunnel type into the HW descriptors.
--
2.7.4