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ethdev: add Rx HW timestamp capability

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Add a new offload capability flag for Rx HW
timestamp and enabling/disabling this via rte_eth_rxmode.

Signed-off-by: Raslan Darawsheh <rasland@mellanox.com>
Reviewed-by: Shahaf Shuler <shahafs@mellanox.com>
Acked-by: Yongseok Koh <yskoh@mellanox.com>
This commit is contained in:
Raslan Darawsheh 2017-10-10 17:37:05 +03:00 committed by Ferruh Yigit
parent 03e0868b4c
commit 42ffc45aa3
4 changed files with 20 additions and 0 deletions
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11
doc/guides/nics/features.rst
View File

@ -574,6 +574,17 @@ Supports L4 checksum offload.
* **[provides] rte_eth_dev_info**: ``rx_offload_capa,rx_queue_offload_capa:DEV_RX_OFFLOAD_UDP_CKSUM,DEV_RX_OFFLOAD_TCP_CKSUM``,
``tx_offload_capa,tx_queue_offload_capa:DEV_TX_OFFLOAD_UDP_CKSUM,DEV_TX_OFFLOAD_TCP_CKSUM,DEV_TX_OFFLOAD_SCTP_CKSUM``.
.. _nic_features_hw_timestamp:
Timestamp offload
-----------------
Supports Timestamp.
* **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:DEV_RX_OFFLOAD_TIMESTAMP``.
* **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_TIMESTAMP``.
* **[provides] mbuf**: ``mbuf.timestamp``.
* **[provides] rte_eth_dev_info**: ``rx_offload_capa,rx_queue_offload_capa: DEV_RX_OFFLOAD_TIMESTAMP``.
.. _nic_features_macsec_offload:

1
doc/guides/nics/features/default.ini
View File

@ -48,6 +48,7 @@ VLAN offload =
QinQ offload =
L3 checksum offload =
L4 checksum offload =
Timestamp offload =
MACsec offload =
Inner L3 checksum =
Inner L4 checksum =

6
lib/librte_ether/rte_ethdev.c
View File

@ -715,6 +715,8 @@ rte_eth_convert_rx_offload_bitfield(const struct rte_eth_rxmode *rxmode,
offloads |= DEV_RX_OFFLOAD_SCATTER;
if (rxmode->enable_lro == 1)
offloads |= DEV_RX_OFFLOAD_TCP_LRO;
if (rxmode->hw_timestamp == 1)
offloads |= DEV_RX_OFFLOAD_TIMESTAMP;
*rx_offloads = offloads;
}
@ -763,6 +765,10 @@ rte_eth_convert_rx_offloads(const uint64_t rx_offloads,
rxmode->enable_lro = 1;
else
rxmode->enable_lro = 0;
if (rx_offloads & DEV_RX_OFFLOAD_TIMESTAMP)
rxmode->hw_timestamp = 1;
else
rxmode->hw_timestamp = 0;
}
int

2
lib/librte_ether/rte_ethdev.h
View File

@ -369,6 +369,7 @@ struct rte_eth_rxmode {
hw_strip_crc : 1, /**< Enable CRC stripping by hardware. */
enable_scatter : 1, /**< Enable scatter packets rx handler */
enable_lro : 1, /**< Enable LRO */
hw_timestamp : 1, /**< Enable HW timestamp */
/**
* When set the offload bitfield should be ignored.
* Instead per-port Rx offloads should be set on offloads
@ -961,6 +962,7 @@ struct rte_eth_conf {
#define DEV_RX_OFFLOAD_JUMBO_FRAME 0x00000800
#define DEV_RX_OFFLOAD_CRC_STRIP 0x00001000
#define DEV_RX_OFFLOAD_SCATTER 0x00002000
#define DEV_RX_OFFLOAD_TIMESTAMP 0x00004000
#define DEV_RX_OFFLOAD_CHECKSUM (DEV_RX_OFFLOAD_IPV4_CKSUM | \
DEV_RX_OFFLOAD_UDP_CKSUM | \
DEV_RX_OFFLOAD_TCP_CKSUM)