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From: Song Yoong Siang <yoong.siang.song@intel.com>
To: Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Jose Abreu <joabreu@synopsys.com>,
	"David S . Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Jesper Dangaard Brouer <hawk@kernel.org>,
	John Fastabend <john.fastabend@gmail.com>,
	Stanislav Fomichev <sdf@google.com>,
	Alexander Duyck <alexanderduyck@fb.com>,
	Jesper Dangaard Brouer <brouer@redhat.com>,
	Ong Boon Leong <boon.leong.ong@intel.com>,
	Jacob Keller <jacob.e.keller@intel.com>
Cc: netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, bpf@vger.kernel.org,
	xdp-hints@xdp-project.net,
	Song Yoong Siang <yoong.siang.song@intel.com>
Subject: [xdp-hints] [PATCH net-next v5 0/3] XDP Rx HWTS metadata for stmmac driver
Date: Fri, 14 Apr 2023 13:26:48 +0800	[thread overview]
Message-ID: <20230414052651.1871424-1-yoong.siang.song@intel.com> (raw)

Implemented XDP receive hardware timestamp metadata for stmmac driver.

This patchset is tested with tools/testing/selftests/bpf/xdp_hw_metadata.
Below are the test steps and results.

Command on DUT:
	sudo ./xdp_hw_metadata <interface name>

Command on Link Partner:
	echo -n xdp | nc -u -q1 <destination IPv4 addr> 9091
	echo -n skb | nc -u -q1 <destination IPv4 addr> 9092

Result for port 9091:
	0x55fdb5f006d0: rx_desc[3]->addr=1000000003bd000 addr=3bd100 comp_addr=3bd000
	rx_timestamp: 1677762474360150047
	rx_hash: 0
	0x55fdb5f006d0: complete idx=515 addr=3bd000

Result for port 9092:
	found skb hwtstamp = 1677762476.320146161

changelog:
v4 -> v5: remove zeroing operation on ctx variable

v3 -> v4: directly retrieve Rx HWTS in stmmac_xdp_rx_timestamp(), instead
	  of reuse stmmac_get_rx_hwtstamp()

v2 -> v3: To reduce packet processing cost, get the Rx HWTS only when
	  xmo_rx_timestamp() is called

v1 -> v2: Add static to stmmac_xdp_metadata_ops declaration

---

Song Yoong Siang (3):
  net: stmmac: introduce wrapper for struct xdp_buff
  net: stmmac: add Rx HWTS metadata to XDP receive pkt
  net: stmmac: add Rx HWTS metadata to XDP ZC receive pkt

 drivers/net/ethernet/stmicro/stmmac/stmmac.h  |  7 ++
 .../net/ethernet/stmicro/stmmac/stmmac_main.c | 80 ++++++++++++++++---
 2 files changed, 77 insertions(+), 10 deletions(-)

-- 
2.34.1


             reply	other threads:[~2023-04-14  5:27 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-14  5:26 Song Yoong Siang [this message]
2023-04-14  5:26 ` [xdp-hints] [PATCH net-next v5 1/3] net: stmmac: introduce wrapper for struct xdp_buff Song Yoong Siang
2023-04-14 16:04   ` [xdp-hints] " Jesper Dangaard Brouer
2023-04-14  5:26 ` [xdp-hints] [PATCH net-next v5 2/3] net: stmmac: add Rx HWTS metadata to XDP receive pkt Song Yoong Siang
2023-04-14 16:38   ` [xdp-hints] " Jesper Dangaard Brouer
2023-04-15  5:16     ` Song, Yoong Siang
2023-04-14  5:26 ` [xdp-hints] [PATCH net-next v5 3/3] net: stmmac: add Rx HWTS metadata to XDP ZC " Song Yoong Siang

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