ti/cpsw_switchdev
ti/am65_nuss_cpsw_switchdev
ti/tlan
+ ti/icssg_prueth
wangxun/txgbe
wangxun/ngbe
--- /dev/null
+.. SPDX-License-Identifier: GPL-2.0
+
+==============================================
+Texas Instruments ICSSG PRUETH ethernet driver
+==============================================
+
+:Version: 1.0
+
+ICSSG Firmware
+==============
+
+Every ICSSG core has two Programmable Real-Time Unit(PRUs), two auxiliary
+Real-Time Transfer Unit (RTUs), and two Transmit Real-Time Transfer Units
+(TX_PRUs). Each one of these runs its own firmware. The firmwares combnined are
+referred as ICSSG Firmware.
+
+Firmware Statistics
+===================
+
+The ICSSG firmware maintains certain statistics which are dumped by the driver
+via ``ethtool -S <interface>``
+
+These statistics are as follows,
+
+ - ``FW_RTU_PKT_DROP``: Diagnostic error counter which increments when RTU drops a locally injected packet due to port being disabled or rule violation.
+ - ``FW_Q0_OVERFLOW``: TX overflow counter for queue0
+ - ``FW_Q1_OVERFLOW``: TX overflow counter for queue1
+ - ``FW_Q2_OVERFLOW``: TX overflow counter for queue2
+ - ``FW_Q3_OVERFLOW``: TX overflow counter for queue3
+ - ``FW_Q4_OVERFLOW``: TX overflow counter for queue4
+ - ``FW_Q5_OVERFLOW``: TX overflow counter for queue5
+ - ``FW_Q6_OVERFLOW``: TX overflow counter for queue6
+ - ``FW_Q7_OVERFLOW``: TX overflow counter for queue7
+ - ``FW_DROPPED_PKT``: This counter is incremented when a packet is dropped at PRU because of rule violation.
+ - ``FW_RX_ERROR``: Incremented if there was a CRC error or Min/Max frame error at PRU
+ - ``FW_RX_DS_INVALID``: Incremented when RTU detects Data Status invalid condition
+ - ``FW_TX_DROPPED_PACKET``: Counter for packets dropped via TX Port
+ - ``FW_TX_TS_DROPPED_PACKET``: Counter for packets with TS flag dropped via TX Port
+ - ``FW_INF_PORT_DISABLED``: Incremented when RX frame is dropped due to port being disabled
+ - ``FW_INF_SAV``: Incremented when RX frame is dropped due to Source Address violation
+ - ``FW_INF_SA_DL``: Incremented when RX frame is dropped due to Source Address being in the denylist
+ - ``FW_INF_PORT_BLOCKED``: Incremented when RX frame is dropped due to port being blocked and frame being a special frame
+ - ``FW_INF_DROP_TAGGED`` : Incremented when RX frame is dropped for being tagged
+ - ``FW_INF_DROP_PRIOTAGGED``: Incremented when RX frame is dropped for being priority tagged
+ - ``FW_INF_DROP_NOTAG``: Incremented when RX frame is dropped for being untagged
+ - ``FW_INF_DROP_NOTMEMBER``: Incremented when RX frame is dropped for port not being member of VLAN
+ - ``FW_RX_EOF_SHORT_FRMERR``: Incremented if End Of Frame (EOF) task is scheduled without seeing RX_B1
+ - ``FW_RX_B0_DROP_EARLY_EOF``: Incremented when frame is dropped due to Early EOF
+ - ``FW_TX_JUMBO_FRM_CUTOFF``: Incremented when frame is cut off to prevent packet size > 2000 Bytes
+ - ``FW_RX_EXP_FRAG_Q_DROP``: Incremented when express frame is received in the same queue as the previous fragment
+ - ``FW_RX_FIFO_OVERRUN``: RX fifo overrun counter
+ - ``FW_CUT_THR_PKT``: Incremented when a packet is forwarded using Cut-Through forwarding method
+ - ``FW_HOST_RX_PKT_CNT``: Number of valid packets sent by Rx PRU to Host on PSI
+ - ``FW_HOST_TX_PKT_CNT``: Number of valid packets copied by RTU0 to Tx queues
+ - ``FW_HOST_EGRESS_Q_PRE_OVERFLOW``: Host Egress Q (Pre-emptible) Overflow Counter
+ - ``FW_HOST_EGRESS_Q_EXP_OVERFLOW``: Host Egress Q (Pre-emptible) Overflow Counter
stats->rx_over_errors = emac_get_stat_by_name(emac, "rx_over_errors");
stats->multicast = emac_get_stat_by_name(emac, "rx_multicast_frames");
- stats->rx_errors = ndev->stats.rx_errors;
- stats->rx_dropped = ndev->stats.rx_dropped;
+ stats->rx_errors = ndev->stats.rx_errors +
+ emac_get_stat_by_name(emac, "FW_RX_ERROR") +
+ emac_get_stat_by_name(emac, "FW_RX_EOF_SHORT_FRMERR") +
+ emac_get_stat_by_name(emac, "FW_RX_B0_DROP_EARLY_EOF") +
+ emac_get_stat_by_name(emac, "FW_RX_EXP_FRAG_Q_DROP") +
+ emac_get_stat_by_name(emac, "FW_RX_FIFO_OVERRUN");
+ stats->rx_dropped = ndev->stats.rx_dropped +
+ emac_get_stat_by_name(emac, "FW_DROPPED_PKT") +
+ emac_get_stat_by_name(emac, "FW_INF_PORT_DISABLED") +
+ emac_get_stat_by_name(emac, "FW_INF_SAV") +
+ emac_get_stat_by_name(emac, "FW_INF_SA_DL") +
+ emac_get_stat_by_name(emac, "FW_INF_PORT_BLOCKED") +
+ emac_get_stat_by_name(emac, "FW_INF_DROP_TAGGED") +
+ emac_get_stat_by_name(emac, "FW_INF_DROP_PRIOTAGGED") +
+ emac_get_stat_by_name(emac, "FW_INF_DROP_NOTAG") +
+ emac_get_stat_by_name(emac, "FW_INF_DROP_NOTMEMBER");
stats->tx_errors = ndev->stats.tx_errors;
- stats->tx_dropped = ndev->stats.tx_dropped;
+ stats->tx_dropped = ndev->stats.tx_dropped +
+ emac_get_stat_by_name(emac, "FW_RTU_PKT_DROP") +
+ emac_get_stat_by_name(emac, "FW_TX_DROPPED_PACKET") +
+ emac_get_stat_by_name(emac, "FW_TX_TS_DROPPED_PACKET") +
+ emac_get_stat_by_name(emac, "FW_TX_JUMBO_FRM_CUTOFF");
}
EXPORT_SYMBOL_GPL(icssg_ndo_get_stats64);
#define ICSSG_MAX_RFLOWS 8 /* per slice */
-#define ICSSG_NUM_PA_STATS 4
+#define ICSSG_NUM_PA_STATS 32
#define ICSSG_NUM_MIIG_STATS 60
/* Number of ICSSG related stats */
#define ICSSG_NUM_STATS (ICSSG_NUM_MIIG_STATS + ICSSG_NUM_PA_STATS)
#define ICSSG_TX_PACKET_OFFSET 0xA0
#define ICSSG_TX_BYTE_OFFSET 0xEC
-#define ICSSG_FW_STATS_BASE 0x0248
static u32 stats_base[] = { 0x54c, /* Slice 0 stats start */
0xb18, /* Slice 1 stats start */
if (prueth->pa_stats) {
for (i = 0; i < ARRAY_SIZE(icssg_all_pa_stats); i++) {
- reg = ICSSG_FW_STATS_BASE +
- icssg_all_pa_stats[i].offset *
- PRUETH_NUM_MACS + slice * sizeof(u32);
+ reg = icssg_all_pa_stats[i].offset +
+ slice * sizeof(u32);
regmap_read(prueth->pa_stats, reg, &val);
emac->pa_stats[i] += val;
}
if (emac->prueth->pa_stats) {
for (i = 0; i < ARRAY_SIZE(icssg_all_pa_stats); i++) {
if (!strcmp(icssg_all_pa_stats[i].name, stat_name))
- return emac->pa_stats[icssg_all_pa_stats[i].offset / sizeof(u32)];
+ return emac->pa_stats[i];
}
}
ICSSG_MIIG_STATS(tx_bytes, true),
};
-/**
- * struct pa_stats_regs - ICSSG Firmware maintained PA Stats register
- * @fw_rx_cnt: Number of valid packets sent by Rx PRU to Host on PSI
- * @fw_tx_cnt: Number of valid packets copied by RTU0 to Tx queues
- * @fw_tx_pre_overflow: Host Egress Q (Pre-emptible) Overflow Counter
- * @fw_tx_exp_overflow: Host Egress Q (Express) Overflow Counter
- */
-struct pa_stats_regs {
- u32 fw_rx_cnt;
- u32 fw_tx_cnt;
- u32 fw_tx_pre_overflow;
- u32 fw_tx_exp_overflow;
-};
-
-#define ICSSG_PA_STATS(field) \
-{ \
- #field, \
- offsetof(struct pa_stats_regs, field), \
+#define ICSSG_PA_STATS(field) \
+{ \
+ #field, \
+ field, \
}
struct icssg_pa_stats {
};
static const struct icssg_pa_stats icssg_all_pa_stats[] = {
- ICSSG_PA_STATS(fw_rx_cnt),
- ICSSG_PA_STATS(fw_tx_cnt),
- ICSSG_PA_STATS(fw_tx_pre_overflow),
- ICSSG_PA_STATS(fw_tx_exp_overflow),
+ ICSSG_PA_STATS(FW_RTU_PKT_DROP),
+ ICSSG_PA_STATS(FW_Q0_OVERFLOW),
+ ICSSG_PA_STATS(FW_Q1_OVERFLOW),
+ ICSSG_PA_STATS(FW_Q2_OVERFLOW),
+ ICSSG_PA_STATS(FW_Q3_OVERFLOW),
+ ICSSG_PA_STATS(FW_Q4_OVERFLOW),
+ ICSSG_PA_STATS(FW_Q5_OVERFLOW),
+ ICSSG_PA_STATS(FW_Q6_OVERFLOW),
+ ICSSG_PA_STATS(FW_Q7_OVERFLOW),
+ ICSSG_PA_STATS(FW_DROPPED_PKT),
+ ICSSG_PA_STATS(FW_RX_ERROR),
+ ICSSG_PA_STATS(FW_RX_DS_INVALID),
+ ICSSG_PA_STATS(FW_TX_DROPPED_PACKET),
+ ICSSG_PA_STATS(FW_TX_TS_DROPPED_PACKET),
+ ICSSG_PA_STATS(FW_INF_PORT_DISABLED),
+ ICSSG_PA_STATS(FW_INF_SAV),
+ ICSSG_PA_STATS(FW_INF_SA_DL),
+ ICSSG_PA_STATS(FW_INF_PORT_BLOCKED),
+ ICSSG_PA_STATS(FW_INF_DROP_TAGGED),
+ ICSSG_PA_STATS(FW_INF_DROP_PRIOTAGGED),
+ ICSSG_PA_STATS(FW_INF_DROP_NOTAG),
+ ICSSG_PA_STATS(FW_INF_DROP_NOTMEMBER),
+ ICSSG_PA_STATS(FW_RX_EOF_SHORT_FRMERR),
+ ICSSG_PA_STATS(FW_RX_B0_DROP_EARLY_EOF),
+ ICSSG_PA_STATS(FW_TX_JUMBO_FRM_CUTOFF),
+ ICSSG_PA_STATS(FW_RX_EXP_FRAG_Q_DROP),
+ ICSSG_PA_STATS(FW_RX_FIFO_OVERRUN),
+ ICSSG_PA_STATS(FW_CUT_THR_PKT),
+ ICSSG_PA_STATS(FW_HOST_RX_PKT_CNT),
+ ICSSG_PA_STATS(FW_HOST_TX_PKT_CNT),
+ ICSSG_PA_STATS(FW_HOST_EGRESS_Q_PRE_OVERFLOW),
+ ICSSG_PA_STATS(FW_HOST_EGRESS_Q_EXP_OVERFLOW),
};
#endif /* __NET_TI_ICSSG_STATS_H */
/* Start of 32 bits PA_STAT counters */
#define PA_STAT_32b_START_OFFSET 0x0080
+#define FW_RTU_PKT_DROP 0x0088
+#define FW_Q0_OVERFLOW 0x0090
+#define FW_Q1_OVERFLOW 0x0098
+#define FW_Q2_OVERFLOW 0x00A0
+#define FW_Q3_OVERFLOW 0x00A8
+#define FW_Q4_OVERFLOW 0x00B0
+#define FW_Q5_OVERFLOW 0x00B8
+#define FW_Q6_OVERFLOW 0x00C0
+#define FW_Q7_OVERFLOW 0x00C8
+#define FW_DROPPED_PKT 0x00F8
+#define FW_RX_ERROR 0x0100
+#define FW_RX_DS_INVALID 0x0108
+#define FW_TX_DROPPED_PACKET 0x0110
+#define FW_TX_TS_DROPPED_PACKET 0x0118
+#define FW_INF_PORT_DISABLED 0x0120
+#define FW_INF_SAV 0x0128
+#define FW_INF_SA_DL 0x0130
+#define FW_INF_PORT_BLOCKED 0x0138
+#define FW_INF_DROP_TAGGED 0x0140
+#define FW_INF_DROP_PRIOTAGGED 0x0148
+#define FW_INF_DROP_NOTAG 0x0150
+#define FW_INF_DROP_NOTMEMBER 0x0158
+#define FW_RX_EOF_SHORT_FRMERR 0x0188
+#define FW_RX_B0_DROP_EARLY_EOF 0x0190
+#define FW_TX_JUMBO_FRM_CUTOFF 0x0198
+#define FW_RX_EXP_FRAG_Q_DROP 0x01A0
+#define FW_RX_FIFO_OVERRUN 0x01A8
+#define FW_CUT_THR_PKT 0x01B0
+#define FW_HOST_RX_PKT_CNT 0x0248
+#define FW_HOST_TX_PKT_CNT 0x0250
+#define FW_HOST_EGRESS_Q_PRE_OVERFLOW 0x0258
+#define FW_HOST_EGRESS_Q_EXP_OVERFLOW 0x0260
+
#endif /* __NET_TI_ICSSG_SWITCH_MAP_H */
projects / thirdparty / linux.git / commitdiff
