Add hns3 support for new ethdev APIs to enable and read IEEE1588/
802.1AS PTP timestamps.

Signed-off-by: Min Hu (Connor) <redacted>
---
  doc/guides/nics/features/hns3.ini |   2 +
  doc/guides/nics/hns3.rst          |   1 +
  drivers/net/hns3/hns3_cmd.h       |  33 +++++
  drivers/net/hns3/hns3_ethdev.c    |  59 +++++++-
  drivers/net/hns3/hns3_ethdev.h    |  25 ++++
  drivers/net/hns3/hns3_ptp.c       | 294 ++++++++++++++++++++++++++++++++++++++
  drivers/net/hns3/hns3_regs.h      |  25 ++++
  drivers/net/hns3/hns3_rxtx.c      |  56 +++++++-
  drivers/net/hns3/hns3_rxtx.h      |  12 ++
  drivers/net/hns3/hns3_rxtx_vec.c  |  19 ++-
  drivers/net/hns3/meson.build      |   3 +-
  11 files changed, 516 insertions(+), 13 deletions(-)
  create mode 100644 drivers/net/hns3/hns3_ptp.c

diff --git a/doc/guides/nics/features/hns3.ini b/doc/guides/nics/features/hns3.ini
index 3988be4..502bfe7 100644
--- a/doc/guides/nics/features/hns3.ini
+++ b/doc/guides/nics/features/hns3.ini

@@ -43,6 +43,8 @@ Stats per queue      = Y
  FW version           = Y
  Registers dump       = Y
  Module EEPROM dump   = Y
+Timesync             = Y
+Timestamp offload    = Y
  Multiprocess aware   = Y
  Linux                = Y
  ARMv8                = Y

diff --git a/doc/guides/nics/hns3.rst b/doc/guides/nics/hns3.rst
index ccd2f6f..3366562 100644
--- a/doc/guides/nics/hns3.rst
+++ b/doc/guides/nics/hns3.rst

@@ -37,6 +37,7 @@ Features of the HNS3 PMD are:
  - MTU update
  - NUMA support
  - Generic flow API
+- IEEE1588/802.1AS timestamping
  
  Prerequisites
  -------------

diff --git a/drivers/net/hns3/hns3_cmd.h b/drivers/net/hns3/hns3_cmd.h
index e704d0c..abc853b 100644
--- a/drivers/net/hns3/hns3_cmd.h
+++ b/drivers/net/hns3/hns3_cmd.h

@@ -123,6 +123,12 @@ enum hns3_opcode_type {
  	HNS3_OPC_CLEAR_MAC_TNL_INT      = 0x0312,
  	HNS3_OPC_CONFIG_FEC_MODE        = 0x031A,
  
+#ifdef RTE_LIBRTE_IEEE1588
+	/* PTP command */
+	HNS3_OPC_PTP_INT_EN             = 0x0501,
+	HNS3_OPC_CFG_PTP_MODE           = 0x0507,
+#endif
+