Signed-off-by: Vamsi Attunuru <vattun...@cavium.com>
Signed-off-by: Shally Verma <sve...@cavium.com>
Signed-off-by: Mahipal Challa <mcha...@cavium.com>
---
include/odp/api/spec/packet_io.h | 43 +++++++++++++++++++++-------------------
1 file changed, 23 insertions(+), 20 deletions(-)
diff --git a/include/odp/api/spec/packet_io.h b/include/odp/api/spec/packet_io.h
index be81c3d..c372a2a 100644
--- a/include/odp/api/spec/packet_io.h
+++ b/include/odp/api/spec/packet_io.h
@@ -440,6 +440,29 @@ typedef struct odp_pktio_config_t {
*/
odp_bool_t outbound_ipsec;
+ /** MTU size of the pktio interface.
+ *
+ * It's the frame size which the pktio can transmit without
fragmentation.
+ * And it does not count L2 header bytes, FCS and VLAN tag bytes.
+ *
+ * pktio interface must be able to send and receive packets up to
+ * this MTU size successfully. Trying to send or receive packets larger
+ * than these MTU results in undefined behavior.
+ *
+ * By default, pktio is configured with max support MTU size.
+ *
+ * Max supported MTU can be read through these parameter
+ * as part of odp_pktio_capability() routine.
+ *
+ * MTU can be modified by passing valid odp_pktio_config_t:mtu_size
value
+ * as part of odp_pktio_config() routine.
+ *
+ * Valid MTU value should be greater than 0 and less than or equal to
the
+ * value get through odp_pktio_capability(),
+ * i.e. 0 < mtu_size <= capability provided mtu value.
+ */
+ uint32_t mtu_size;
+
} odp_pktio_config_t;
/**
@@ -452,9 +475,6 @@ typedef union odp_pktio_set_op_t {
struct {
/** Promiscuous mode */
uint32_t promisc_mode : 1;
-
- /** Allow app to set MTU size */
- uint32_t mtu_set : 1;
} op;
/** All bits of the bit field structure.
* This field can be used to set/clear all flags, or bitwise
@@ -484,8 +504,6 @@ typedef struct odp_pktio_capability_t {
/** @deprecated Use enable_loop inside odp_pktin_config_t */
odp_bool_t ODP_DEPRECATE(loop_supported);
- /** Maximum MTU size supported */
- uint32_t max_mtu_size;
} odp_pktio_capability_t;
/**
@@ -916,21 +934,6 @@ int odp_pktout_send(odp_pktout_queue_t queue, const
odp_packet_t packets[],
uint32_t odp_pktio_mtu(odp_pktio_t pktio);
/**
- * Set MTU value of a packet IO interface.
- *
- * Application should pass value upto max_mtu_size as indicated by
- * odp_pktio_capability_t:max_mtu_size. Any value beyond max_mtu_size
- * limit will result in failure. mtu value < 68 also results in failure.
- *
- * @param pktio Packet IO handle.
- * @param mtu MTU value to be set.
- *
- * @return 0 on success
- * @retval <0 on failure
- */
-int odp_pktio_mtu_set(odp_pktio_t pktio, uint32_t mtu);
-
-/**
* Enable/Disable promiscuous mode on a packet IO interface.
*
* @param[in] pktio Packet IO handle.
--
1.9.3
