linux-kernel - Re: [PATCH v1 net-next 2/2] net: mscc: ocelot: remove unnecessary exposure of stats structures

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Date:   Mon, 14 Nov 2022 19:47:16 -0800
From:   Colin Foster <colin.foster@...advantage.com>
To:     Vladimir Oltean <vladimir.oltean@....com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Claudiu Manoil <claudiu.manoil@....com>
Subject: Re: [PATCH v1 net-next 2/2] net: mscc: ocelot: remove unnecessary
 exposure of stats structures

On Mon, Nov 14, 2022 at 03:19:26PM +0000, Vladimir Oltean wrote:
> On Fri, Nov 11, 2022 at 12:49:24PM -0800, Colin Foster wrote:
> > +#define OCELOT_COMMON_STATS \
> > +	OCELOT_STAT_ETHTOOL(RX_OCTETS, "rx_octets"), \
> > +	OCELOT_STAT_ETHTOOL(RX_UNICAST, "rx_unicast"), \
> > +	OCELOT_STAT_ETHTOOL(RX_MULTICAST, "rx_multicast"), \
> > +	OCELOT_STAT_ETHTOOL(RX_BROADCAST, "rx_broadcast"), \
> > +	OCELOT_STAT_ETHTOOL(RX_SHORTS, "rx_shorts"), \
> > +	OCELOT_STAT_ETHTOOL(RX_FRAGMENTS, "rx_fragments"), \
> > +	OCELOT_STAT_ETHTOOL(RX_JABBERS, "rx_jabbers"), \
> > +	OCELOT_STAT_ETHTOOL(RX_CRC_ALIGN_ERRS, "rx_crc_align_errs"), \
> > +	OCELOT_STAT_ETHTOOL(RX_SYM_ERRS, "rx_sym_errs"), \
> > +	OCELOT_STAT_ETHTOOL(RX_64, "rx_frames_below_65_octets"), \
> > +	OCELOT_STAT_ETHTOOL(RX_65_127, "rx_frames_65_to_127_octets"), \
> > +	OCELOT_STAT_ETHTOOL(RX_128_255, "rx_frames_128_to_255_octets"), \
> > +	OCELOT_STAT_ETHTOOL(RX_256_511, "rx_frames_256_to_511_octets"), \
> > +	OCELOT_STAT_ETHTOOL(RX_512_1023, "rx_frames_512_to_1023_octets"), \
> > +	OCELOT_STAT_ETHTOOL(RX_1024_1526, "rx_frames_1024_to_1526_octets"), \
> > +	OCELOT_STAT_ETHTOOL(RX_1527_MAX, "rx_frames_over_1526_octets"), \
> > +	OCELOT_STAT_ETHTOOL(RX_PAUSE, "rx_pause"), \
> > +	OCELOT_STAT_ETHTOOL(RX_CONTROL, "rx_control"), \
> > +	OCELOT_STAT_ETHTOOL(RX_LONGS, "rx_longs"), \
> > +	OCELOT_STAT_ETHTOOL(RX_CLASSIFIED_DROPS, "rx_classified_drops"), \
> > +	OCELOT_STAT_ETHTOOL(RX_RED_PRIO_0, "rx_red_prio_0"), \
> > +	OCELOT_STAT_ETHTOOL(RX_RED_PRIO_1, "rx_red_prio_1"), \
> > +	OCELOT_STAT_ETHTOOL(RX_RED_PRIO_2, "rx_red_prio_2"), \
> > +	OCELOT_STAT_ETHTOOL(RX_RED_PRIO_3, "rx_red_prio_3"), \
> > +	OCELOT_STAT_ETHTOOL(RX_RED_PRIO_4, "rx_red_prio_4"), \
> > +	OCELOT_STAT_ETHTOOL(RX_RED_PRIO_5, "rx_red_prio_5"), \
> > +	OCELOT_STAT_ETHTOOL(RX_RED_PRIO_6, "rx_red_prio_6"), \
> > +	OCELOT_STAT_ETHTOOL(RX_RED_PRIO_7, "rx_red_prio_7"), \
> > +	OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_0, "rx_yellow_prio_0"), \
> > +	OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_1, "rx_yellow_prio_1"), \
> > +	OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_2, "rx_yellow_prio_2"), \
> > +	OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_3, "rx_yellow_prio_3"), \
> > +	OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_4, "rx_yellow_prio_4"), \
> > +	OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_5, "rx_yellow_prio_5"), \
> > +	OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_6, "rx_yellow_prio_6"), \
> > +	OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_7, "rx_yellow_prio_7"), \
> > +	OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_0, "rx_green_prio_0"), \
> > +	OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_1, "rx_green_prio_1"), \
> > +	OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_2, "rx_green_prio_2"), \
> > +	OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_3, "rx_green_prio_3"), \
> > +	OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_4, "rx_green_prio_4"), \
> > +	OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_5, "rx_green_prio_5"), \
> > +	OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_6, "rx_green_prio_6"), \
> > +	OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_7, "rx_green_prio_7"), \
> > +	OCELOT_STAT_ETHTOOL(TX_OCTETS, "tx_octets"), \
> > +	OCELOT_STAT_ETHTOOL(TX_UNICAST, "tx_unicast"), \
> > +	OCELOT_STAT_ETHTOOL(TX_MULTICAST, "tx_multicast"), \
> > +	OCELOT_STAT_ETHTOOL(TX_BROADCAST, "tx_broadcast"), \
> > +	OCELOT_STAT_ETHTOOL(TX_COLLISION, "tx_collision"), \
> > +	OCELOT_STAT_ETHTOOL(TX_DROPS, "tx_drops"), \
> > +	OCELOT_STAT_ETHTOOL(TX_PAUSE, "tx_pause"), \
> > +	OCELOT_STAT_ETHTOOL(TX_64, "tx_frames_below_65_octets"), \
> > +	OCELOT_STAT_ETHTOOL(TX_65_127, "tx_frames_65_to_127_octets"), \
> > +	OCELOT_STAT_ETHTOOL(TX_128_255, "tx_frames_128_255_octets"), \
> > +	OCELOT_STAT_ETHTOOL(TX_256_511, "tx_frames_256_511_octets"), \
> > +	OCELOT_STAT_ETHTOOL(TX_512_1023, "tx_frames_512_1023_octets"), \
> > +	OCELOT_STAT_ETHTOOL(TX_1024_1526, "tx_frames_1024_1526_octets"), \
> > +	OCELOT_STAT_ETHTOOL(TX_1527_MAX, "tx_frames_over_1526_octets"), \
> > +	OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_0, "tx_yellow_prio_0"), \
> > +	OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_1, "tx_yellow_prio_1"), \
> > +	OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_2, "tx_yellow_prio_2"), \
> > +	OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_3, "tx_yellow_prio_3"), \
> > +	OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_4, "tx_yellow_prio_4"), \
> > +	OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_5, "tx_yellow_prio_5"), \
> > +	OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_6, "tx_yellow_prio_6"), \
> > +	OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_7, "tx_yellow_prio_7"), \
> > +	OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_0, "tx_green_prio_0"), \
> > +	OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_1, "tx_green_prio_1"), \
> > +	OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_2, "tx_green_prio_2"), \
> > +	OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_3, "tx_green_prio_3"), \
> > +	OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_4, "tx_green_prio_4"), \
> > +	OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_5, "tx_green_prio_5"), \
> > +	OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_6, "tx_green_prio_6"), \
> > +	OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_7, "tx_green_prio_7"), \
> > +	OCELOT_STAT_ETHTOOL(TX_AGED, "tx_aged"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_LOCAL, "drop_local"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_TAIL, "drop_tail"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_0, "drop_yellow_prio_0"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_1, "drop_yellow_prio_1"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_2, "drop_yellow_prio_2"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_3, "drop_yellow_prio_3"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_4, "drop_yellow_prio_4"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_5, "drop_yellow_prio_5"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_6, "drop_yellow_prio_6"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_7, "drop_yellow_prio_7"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_0, "drop_green_prio_0"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_1, "drop_green_prio_1"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_2, "drop_green_prio_2"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_3, "drop_green_prio_3"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_4, "drop_green_prio_4"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_5, "drop_green_prio_5"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_6, "drop_green_prio_6"), \
> > +	OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_7, "drop_green_prio_7")
> 
> If we're moving these anyway, and stopping providing anything *but*
> common stats, we could as well move them to ocelot_stats_layout and
> delete the OCELOT_COMMON_STATS macro?

I noticed that as well. Depending on which way is best (if the v2 patch
looks anything like this patch), I'll remove this macro.