Commit d7735c6b authored by Raju Rangoju's avatar Raju Rangoju Committed by Paolo Abeni
Browse files

amd-xgbe: add ethtool split header selftest 



Adds support for ethtool split header selftest. Performs
UDP and TCP check to ensure split header selft test works
for both packet types.

Signed-off-by: default avatarRaju Rangoju <Raju.Rangoju@amd.com>
Reviewed-by: default avatarMaxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20251031111555.774425-4-Raju.Rangoju@amd.com


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 42b06fcc

drivers/net/ethernet/amd/xgbe/xgbe-dev.c

+2 −0
Original line number Diff line number Diff line
@@ -211,6 +211,7 @@ static void xgbe_config_sph_mode(struct xgbe_prv_data *pdata) 
	}



	XGMAC_IOWRITE_BITS(pdata, MAC_RCR, HDSMS, XGBE_SPH_HDSMS_SIZE);

	pdata->sph = true;

}



static void xgbe_disable_sph_mode(struct xgbe_prv_data *pdata)
@@ -223,6 +224,7 @@ static void xgbe_disable_sph_mode(struct xgbe_prv_data *pdata) 


		XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_CR, SPH, 0);

	}

	pdata->sph = false;

}



static int xgbe_write_rss_reg(struct xgbe_prv_data *pdata, unsigned int type,

drivers/net/ethernet/amd/xgbe/xgbe-selftest.c

+46 −0
Original line number Diff line number Diff line
@@ -173,6 +173,48 @@ static int xgbe_test_phy_loopback(struct xgbe_prv_data *pdata) 
	return ret;

}



static int xgbe_test_sph(struct xgbe_prv_data *pdata)

{

	struct net_packet_attrs attr = {};

	unsigned long cnt_end, cnt_start;

	int ret;



	cnt_start = pdata->ext_stats.rx_split_header_packets;



	if (!pdata->sph) {

		netdev_err(pdata->netdev, "Split Header not enabled\n");

		return -EOPNOTSUPP;

	}



	/* UDP test */

	attr.dst = pdata->netdev->dev_addr;

	attr.tcp = false;



	ret = __xgbe_test_loopback(pdata, &attr);

	if (ret)

		return ret;



	cnt_end = pdata->ext_stats.rx_split_header_packets;

	if (cnt_end <= cnt_start)

		return -EINVAL;



	/* TCP test */

	cnt_start = cnt_end;



	attr.dst = pdata->netdev->dev_addr;

	attr.tcp = true;



	ret = __xgbe_test_loopback(pdata, &attr);

	if (ret)

		return ret;



	cnt_end = pdata->ext_stats.rx_split_header_packets;

	if (cnt_end <= cnt_start)

		return -EINVAL;



	return 0;

}



static const struct xgbe_test xgbe_selftests[] = {

	{

		.name = "MAC Loopback   ",
@@ -182,6 +224,10 @@ static const struct xgbe_test xgbe_selftests[] = { 
		.name = "PHY Loopback   ",

		.lb = XGBE_LOOPBACK_NONE,

		.fn = xgbe_test_phy_loopback,

	}, {

		.name = "Split Header   ",

		.lb = XGBE_LOOPBACK_PHY,

		.fn = xgbe_test_sph,

	},

};

drivers/net/ethernet/amd/xgbe/xgbe.h

+1 −0
Original line number Diff line number Diff line
@@ -1246,6 +1246,7 @@ struct xgbe_prv_data { 
	int rx_adapt_retries;

	bool rx_adapt_done;

	bool mode_set;

	bool sph;

};



/* Function prototypes*/