From 9190460084ddd0e9235f55eab0fdd5456b5f2fd5 Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Tue, 16 Aug 2022 16:53:50 +0300 Subject: net: mscc: ocelot: make struct ocelot_stat_layout array indexable The ocelot counters are 32-bit and require periodic reading, every 2 seconds, by ocelot_port_update_stats(), so that wraparounds are detected. Currently, the counters reported by ocelot_get_stats64() come from the 32-bit hardware counters directly, rather than from the 64-bit accumulated ocelot->stats, and this is a problem for their integrity. The strategy is to make ocelot_get_stats64() able to cherry-pick individual stats from ocelot->stats the way in which it currently reads them out from SYS_COUNT_* registers. But currently it can't, because ocelot->stats is an opaque u64 array that's used only to feed data into ethtool -S. To solve that problem, we need to make ocelot->stats indexable, and associate each element with an element of struct ocelot_stat_layout used by ethtool -S. This makes ocelot_stat_layout a fat (and possibly sparse) array, so we need to change the way in which we access it. We no longer need OCELOT_STAT_END as a sentinel, because we know the array's size (OCELOT_NUM_STATS). We just need to skip the array elements that were left unpopulated for the switch revision (ocelot, felix, seville). Signed-off-by: Vladimir Oltean Signed-off-by: Jakub Kicinski --- include/soc/mscc/ocelot.h | 105 ++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 97 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h index 72b9474391da..2428bc64cb1d 100644 --- a/include/soc/mscc/ocelot.h +++ b/include/soc/mscc/ocelot.h @@ -105,11 +105,6 @@ #define REG_RESERVED_ADDR 0xffffffff #define REG_RESERVED(reg) REG(reg, REG_RESERVED_ADDR) -#define for_each_stat(ocelot, stat) \ - for ((stat) = (ocelot)->stats_layout; \ - ((stat)->name[0] != '\0'); \ - (stat)++) - enum ocelot_target { ANA = 1, QS, @@ -540,13 +535,108 @@ enum ocelot_ptp_pins { TOD_ACC_PIN }; +enum ocelot_stat { + OCELOT_STAT_RX_OCTETS, + OCELOT_STAT_RX_UNICAST, + OCELOT_STAT_RX_MULTICAST, + OCELOT_STAT_RX_BROADCAST, + OCELOT_STAT_RX_SHORTS, + OCELOT_STAT_RX_FRAGMENTS, + OCELOT_STAT_RX_JABBERS, + OCELOT_STAT_RX_CRC_ALIGN_ERRS, + OCELOT_STAT_RX_SYM_ERRS, + OCELOT_STAT_RX_64, + OCELOT_STAT_RX_65_127, + OCELOT_STAT_RX_128_255, + OCELOT_STAT_RX_256_511, + OCELOT_STAT_RX_512_1023, + OCELOT_STAT_RX_1024_1526, + OCELOT_STAT_RX_1527_MAX, + OCELOT_STAT_RX_PAUSE, + OCELOT_STAT_RX_CONTROL, + OCELOT_STAT_RX_LONGS, + OCELOT_STAT_RX_CLASSIFIED_DROPS, + OCELOT_STAT_RX_RED_PRIO_0, + OCELOT_STAT_RX_RED_PRIO_1, + OCELOT_STAT_RX_RED_PRIO_2, + OCELOT_STAT_RX_RED_PRIO_3, + OCELOT_STAT_RX_RED_PRIO_4, + OCELOT_STAT_RX_RED_PRIO_5, + OCELOT_STAT_RX_RED_PRIO_6, + OCELOT_STAT_RX_RED_PRIO_7, + OCELOT_STAT_RX_YELLOW_PRIO_0, + OCELOT_STAT_RX_YELLOW_PRIO_1, + OCELOT_STAT_RX_YELLOW_PRIO_2, + OCELOT_STAT_RX_YELLOW_PRIO_3, + OCELOT_STAT_RX_YELLOW_PRIO_4, + OCELOT_STAT_RX_YELLOW_PRIO_5, + OCELOT_STAT_RX_YELLOW_PRIO_6, + OCELOT_STAT_RX_YELLOW_PRIO_7, + OCELOT_STAT_RX_GREEN_PRIO_0, + OCELOT_STAT_RX_GREEN_PRIO_1, + OCELOT_STAT_RX_GREEN_PRIO_2, + OCELOT_STAT_RX_GREEN_PRIO_3, + OCELOT_STAT_RX_GREEN_PRIO_4, + OCELOT_STAT_RX_GREEN_PRIO_5, + OCELOT_STAT_RX_GREEN_PRIO_6, + OCELOT_STAT_RX_GREEN_PRIO_7, + OCELOT_STAT_TX_OCTETS, + OCELOT_STAT_TX_UNICAST, + OCELOT_STAT_TX_MULTICAST, + OCELOT_STAT_TX_BROADCAST, + OCELOT_STAT_TX_COLLISION, + OCELOT_STAT_TX_DROPS, + OCELOT_STAT_TX_PAUSE, + OCELOT_STAT_TX_64, + OCELOT_STAT_TX_65_127, + OCELOT_STAT_TX_128_255, + OCELOT_STAT_TX_256_511, + OCELOT_STAT_TX_512_1023, + OCELOT_STAT_TX_1024_1526, + OCELOT_STAT_TX_1527_MAX, + OCELOT_STAT_TX_YELLOW_PRIO_0, + OCELOT_STAT_TX_YELLOW_PRIO_1, + OCELOT_STAT_TX_YELLOW_PRIO_2, + OCELOT_STAT_TX_YELLOW_PRIO_3, + OCELOT_STAT_TX_YELLOW_PRIO_4, + OCELOT_STAT_TX_YELLOW_PRIO_5, + OCELOT_STAT_TX_YELLOW_PRIO_6, + OCELOT_STAT_TX_YELLOW_PRIO_7, + OCELOT_STAT_TX_GREEN_PRIO_0, + OCELOT_STAT_TX_GREEN_PRIO_1, + OCELOT_STAT_TX_GREEN_PRIO_2, + OCELOT_STAT_TX_GREEN_PRIO_3, + OCELOT_STAT_TX_GREEN_PRIO_4, + OCELOT_STAT_TX_GREEN_PRIO_5, + OCELOT_STAT_TX_GREEN_PRIO_6, + OCELOT_STAT_TX_GREEN_PRIO_7, + OCELOT_STAT_TX_AGED, + OCELOT_STAT_DROP_LOCAL, + OCELOT_STAT_DROP_TAIL, + OCELOT_STAT_DROP_YELLOW_PRIO_0, + OCELOT_STAT_DROP_YELLOW_PRIO_1, + OCELOT_STAT_DROP_YELLOW_PRIO_2, + OCELOT_STAT_DROP_YELLOW_PRIO_3, + OCELOT_STAT_DROP_YELLOW_PRIO_4, + OCELOT_STAT_DROP_YELLOW_PRIO_5, + OCELOT_STAT_DROP_YELLOW_PRIO_6, + OCELOT_STAT_DROP_YELLOW_PRIO_7, + OCELOT_STAT_DROP_GREEN_PRIO_0, + OCELOT_STAT_DROP_GREEN_PRIO_1, + OCELOT_STAT_DROP_GREEN_PRIO_2, + OCELOT_STAT_DROP_GREEN_PRIO_3, + OCELOT_STAT_DROP_GREEN_PRIO_4, + OCELOT_STAT_DROP_GREEN_PRIO_5, + OCELOT_STAT_DROP_GREEN_PRIO_6, + OCELOT_STAT_DROP_GREEN_PRIO_7, + OCELOT_NUM_STATS, +}; + struct ocelot_stat_layout { u32 offset; char name[ETH_GSTRING_LEN]; }; -#define OCELOT_STAT_END { .name = "" } - struct ocelot_stats_region { struct list_head node; u32 offset; @@ -709,7 +799,6 @@ struct ocelot { const u32 *const *map; const struct ocelot_stat_layout *stats_layout; struct list_head stats_regions; - unsigned int num_stats; u32 pool_size[OCELOT_SB_NUM][OCELOT_SB_POOL_NUM]; int packet_buffer_size; -- cgit