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| author | Simei Su <simei.su@intel.com> | 2024-11-06 20:37:19 +0300 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2025-02-14 21:57:45 +0300 |
| commit | 7c1178a9df583454fc76be2ca8a6f0bef6613fba (patch) | |
| tree | 52b757fc5e51ee7c4a647e1103fcf7ea90b184e6 /include/linux | |
| parent | 27ebd8bf9e4b53388cef2d9cdb2947bc456b0b33 (diff) | |
| download | linux-7c1178a9df583454fc76be2ca8a6f0bef6613fba.tar.xz | |
ice: support Rx timestamp on flex descriptor
To support Rx timestamp offload, VIRTCHNL_OP_1588_PTP_CAPS is sent by
the VF to request PTP capability and responded by the PF what capability
is enabled for that VF.
Hardware captures timestamps which contain only 32 bits of nominal
nanoseconds, as opposed to the 64bit timestamps that the stack expects.
To convert 32b to 64b, we need a current PHC time.
VIRTCHNL_OP_1588_PTP_GET_TIME is sent by the VF and responded by the
PF with the current PHC time.
Signed-off-by: Simei Su <simei.su@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Co-developed-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Signed-off-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/avf/virtchnl.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/include/linux/avf/virtchnl.h b/include/linux/avf/virtchnl.h index 92866e449b21..56baf97c44d0 100644 --- a/include/linux/avf/virtchnl.h +++ b/include/linux/avf/virtchnl.h @@ -313,6 +313,18 @@ struct virtchnl_txq_info { VIRTCHNL_CHECK_STRUCT_LEN(24, virtchnl_txq_info); +/* virtchnl_rxq_info_flags - definition of bits in the flags field of the + * virtchnl_rxq_info structure. + * + * @VIRTCHNL_PTP_RX_TSTAMP: request to enable Rx timestamping + * + * Other flag bits are currently reserved and they may be extended in the + * future. + */ +enum virtchnl_rxq_info_flags { + VIRTCHNL_PTP_RX_TSTAMP = BIT(0), +}; + /* VIRTCHNL_OP_CONFIG_RX_QUEUE * VF sends this message to set up parameters for one RX queue. * External data buffer contains one instance of virtchnl_rxq_info. @@ -336,7 +348,8 @@ struct virtchnl_rxq_info { u32 max_pkt_size; u8 crc_disable; u8 rxdid; - u8 pad1[2]; + enum virtchnl_rxq_info_flags flags:8; /* see virtchnl_rxq_info_flags */ + u8 pad1; u64 dma_ring_addr; /* see enum virtchnl_rx_hsplit; deprecated with AVF 1.0 */ |