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Subject[PATCH net-next 4/5] net: stmmac: selftests: Add Split Header test
Date
Add a test to validate that Split Header feature is working correctly.
It works by using the rececently introduced counter that increments each
time a packet with split header is received.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>

---
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Jose Abreu <joabreu@synopsys.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: netdev@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
.../net/ethernet/stmicro/stmmac/stmmac_selftests.c | 42 ++++++++++++++++++++++
1 file changed, 42 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
index 2943943bec43..c56e89e1ae56 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
@@ -1603,6 +1603,44 @@ static int stmmac_test_mjumbo(struct stmmac_priv *priv)
return 0;
}

+static int stmmac_test_sph(struct stmmac_priv *priv)
+{
+ unsigned long cnt_end, cnt_start = priv->xstats.rx_split_hdr_pkt_n;
+ struct stmmac_packet_attrs attr = { };
+ int ret;
+
+ if (!priv->sph)
+ return -EOPNOTSUPP;
+
+ /* Check for UDP first */
+ attr.dst = priv->dev->dev_addr;
+ attr.tcp = false;
+
+ ret = __stmmac_test_loopback(priv, &attr);
+ if (ret)
+ return ret;
+
+ cnt_end = priv->xstats.rx_split_hdr_pkt_n;
+ if (cnt_end <= cnt_start)
+ return -EINVAL;
+
+ /* Check for TCP now */
+ cnt_start = cnt_end;
+
+ attr.dst = priv->dev->dev_addr;
+ attr.tcp = true;
+
+ ret = __stmmac_test_loopback(priv, &attr);
+ if (ret)
+ return ret;
+
+ cnt_end = priv->xstats.rx_split_hdr_pkt_n;
+ if (cnt_end <= cnt_start)
+ return -EINVAL;
+
+ return 0;
+}
+
#define STMMAC_LOOPBACK_NONE 0
#define STMMAC_LOOPBACK_MAC 1
#define STMMAC_LOOPBACK_PHY 2
@@ -1724,6 +1762,10 @@ static const struct stmmac_test {
.name = "Multichannel Jumbo ",
.lb = STMMAC_LOOPBACK_PHY,
.fn = stmmac_test_mjumbo,
+ }, {
+ .name = "Split Header ",
+ .lb = STMMAC_LOOPBACK_PHY,
+ .fn = stmmac_test_sph,
},
};

--
2.7.4
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