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Date:   Mon, 14 Sep 2020 03:24:13 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Oded Gabbay <oded.gabbay@...il.com>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        SW_Drivers@...ana.ai, gregkh@...uxfoundation.org,
        davem@...emloft.net, kuba@...nel.org, f.fainelli@...il.com,
        Omer Shpigelman <oshpigelman@...ana.ai>
Subject: Re: [PATCH v2 12/14] habanalabs/gaudi: Add ethtool support using
 coresight

> +static struct gaudi_nic_ethtool_stats gaudi_nic_mac_stats_rx[] = {
> +	{"Rx MAC counters", 0},
> +	{"  etherStatsOctets", 0x0},
> +	{"  OctetsReceivedOK", 0x4},
> +	{"  aAlignmentErrors", 0x8},
> +	{"  aPAUSEMACCtrlFramesReceived", 0xC},
> +	{"  aFrameTooLongErrors", 0x10},
> +	{"  aInRangeLengthErrors", 0x14},
> +	{"  aFramesReceivedOK", 0x18},
> +	{"  VLANReceivedOK", 0x1C},
> +	{"  aFrameCheckSequenceErrors", 0x20},
> +	{"  ifInErrors", 0x24},
> +	{"  ifInUcastPkts", 0x28},
> +	{"  ifInMulticastPkts", 0x2C},
> +	{"  ifInBroadcastPkts", 0x30},
> +	{"  etherStatsDropEvents", 0x34},
> +	{"  etherStatsUndersizePkts", 0x38},
> +	{"  etherStatsPkts", 0x3C},
> +	{"  etherStatsPkts64Octets", 0x40},
> +	{"  etherStatsPkts65to127Octets", 0x44},
> +	{"  etherStatsPkts128to255Octets", 0x48},
> +	{"  etherStatsPkts256to511Octets", 0x4C},
> +	{"  etherStatsPkts512to1023Octets", 0x50},
> +	{"  etherStatsPkts1024to1518Octets", 0x54},
> +	{"  etherStatsPkts1519toMaxOctets", 0x58},
> +	{"  etherStatsOversizePkts", 0x5C},
> +	{"  etherStatsJabbers", 0x60},
> +	{"  etherStatsFragments", 0x64},
> +	{"  aCBFCPAUSEFramesReceived_0", 0x68},
> +	{"  aCBFCPAUSEFramesReceived_1", 0x6C},
> +	{"  aCBFCPAUSEFramesReceived_2", 0x70},
> +	{"  aCBFCPAUSEFramesReceived_3", 0x74},
> +	{"  aCBFCPAUSEFramesReceived_4", 0x78},
> +	{"  aCBFCPAUSEFramesReceived_5", 0x7C},
> +	{"  aCBFCPAUSEFramesReceived_6", 0x80},
> +	{"  aCBFCPAUSEFramesReceived_7", 0x84},
> +	{"  aMACControlFramesReceived", 0x88}
> +};
> +
> +static struct gaudi_nic_ethtool_stats gaudi_nic_mac_stats_tx[] = {
> +	{"Tx MAC counters", 0},
> +	{"  etherStatsOctets", 0x0},
> +	{"  OctetsTransmittedOK", 0x4},
> +	{"  aPAUSEMACCtrlFramesTransmitted", 0x8},
> +	{"  aFramesTransmittedOK", 0xC},
> +	{"  VLANTransmittedOK", 0x10},
> +	{"  ifOutErrors", 0x14},
> +	{"  ifOutUcastPkts", 0x18},
> +	{"  ifOutMulticastPkts", 0x1C},
> +	{"  ifOutBroadcastPkts", 0x20},
> +	{"  etherStatsPkts64Octets", 0x24},
> +	{"  etherStatsPkts65to127Octets", 0x28},
> +	{"  etherStatsPkts128to255Octets", 0x2C},
> +	{"  etherStatsPkts256to511Octets", 0x30},
> +	{"  etherStatsPkts512to1023Octets", 0x34},
> +	{"  etherStatsPkts1024to1518Octets", 0x38},
> +	{"  etherStatsPkts1519toMaxOctets", 0x3C},
> +	{"  aCBFCPAUSEFramesTransmitted_0", 0x40},
> +	{"  aCBFCPAUSEFramesTransmitted_1", 0x44},
> +	{"  aCBFCPAUSEFramesTransmitted_2", 0x48},
> +	{"  aCBFCPAUSEFramesTransmitted_3", 0x4C},
> +	{"  aCBFCPAUSEFramesTransmitted_4", 0x50},
> +	{"  aCBFCPAUSEFramesTransmitted_5", 0x54},
> +	{"  aCBFCPAUSEFramesTransmitted_6", 0x58},
> +	{"  aCBFCPAUSEFramesTransmitted_7", 0x5C},
> +	{"  aMACControlFramesTransmitted", 0x60},
> +	{"  etherStatsPkts", 0x64}
> +};

...

> +static void gaudi_nic_get_internal_stats(struct net_device *netdev, u64 *data)
> +{
> +	struct gaudi_nic_device **ptr = netdev_priv(netdev);
> +	struct gaudi_nic_device *gaudi_nic = *ptr;
> +	struct hl_device *hdev = gaudi_nic->hdev;
> +	u32 port = gaudi_nic->port;
> +	u32 num_spmus;
> +	int i;
> +
> +	num_spmus = (port & 1) ? NIC_SPMU1_STATS_LEN : NIC_SPMU0_STATS_LEN;
> +
> +	gaudi_sample_spmu_nic(hdev, port, num_spmus, data);
> +	data += num_spmus;
> +
> +	/* first entry is title */
> +	data[0] = 0;

Hi Jakub

You have been looking at statistics names recently. What do you think
of this data[0]?

   Andrew

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