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authorVladimir Oltean <vladimir.oltean@nxp.com>2022-08-16 16:53:50 +0300
committerJakub Kicinski <kuba@kernel.org>2022-08-18 07:58:32 +0300
commit9190460084ddd0e9235f55eab0fdd5456b5f2fd5 (patch)
treef04f1686e4c4ff6ad804ad1b47a43449ed5571b2 /include
parent18d8e67df184081bc6ce6220a2dd965cfd3d7e6b (diff)
downloadlinux-9190460084ddd0e9235f55eab0fdd5456b5f2fd5.tar.xz
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 <vladimir.oltean@nxp.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include')
-rw-r--r--include/soc/mscc/ocelot.h105
1 files changed, 97 insertions, 8 deletions
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;