From 1cfd45ae0bad3975cd59ff18ce04265b1bccbcd6 Mon Sep 17 00:00:00 2001 From: Birger Koblitz Date: Fri, 10 Sep 2021 15:08:27 +0200 Subject: [PATCH] realtek: Add debugfs support for RTL9300 Adds support for debugfs on RTL9300, in particular the drop counters. Signed-off-by: Birger Koblitz --- .../drivers/net/dsa/rtl83xx/common.c | 2 + .../drivers/net/dsa/rtl83xx/debugfs.c | 129 +++++++++++++++++- 2 files changed, 130 insertions(+), 1 deletion(-) diff --git a/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/common.c b/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/common.c index 2745ead06198..9691b8b5c7b4 100644 --- a/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/common.c +++ b/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/common.c @@ -1570,6 +1570,8 @@ static int __init rtl83xx_sw_probe(struct platform_device *pdev) sw_w32(7, priv->r->spcl_trap_eapol_ctrl); rtl838x_dbgfs_init(priv); + } else { + rtl930x_dbgfs_init(priv); } return 0; diff --git a/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/debugfs.c b/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/debugfs.c index 4f8140845353..0a1972aaf60f 100644 --- a/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/debugfs.c +++ b/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/debugfs.c @@ -40,7 +40,11 @@ #define RTL839X_MIR_RSPAN_TX_CTRL (0x69b0) #define RTL839X_MIR_RSPAN_TX_TAG_RM_CTRL (0x2550) #define RTL839X_MIR_RSPAN_TX_TAG_EN_CTRL (0x2554) -#define RTL839X_MIR_SAMPLE_RATE_CTRL (0x2558) +#define RTL839X_MIR_SAMPLE_RATE_CTRL (0x2558) + +#define RTL838X_STAT_PRVTE_DROP_COUNTERS (0x6A00) +#define RTL839X_STAT_PRVTE_DROP_COUNTERS (0x3E00) +#define RTL930X_STAT_PRVTE_DROP_COUNTERS (0xB5B8) int rtl83xx_port_get_stp_state(struct rtl838x_switch_priv *priv, int port); void rtl83xx_port_stp_state_set(struct dsa_switch *ds, int port, u8 state); @@ -50,6 +54,58 @@ u32 rtl839x_get_egress_rate(struct rtl838x_switch_priv *priv, int port); int rtl838x_set_egress_rate(struct rtl838x_switch_priv *priv, int port, u32 rate); int rtl839x_set_egress_rate(struct rtl838x_switch_priv *priv, int port, u32 rate); + +const char *rtl838x_drop_cntr[] = { + "ALE_TX_GOOD_PKTS", "MAC_RX_DROP", "ACL_FWD_DROP", "HW_ATTACK_PREVENTION_DROP", + "RMA_DROP", "VLAN_IGR_FLTR_DROP", "INNER_OUTER_CFI_EQUAL_1_DROP", "PORT_MOVE_DROP", + "NEW_SA_DROP", "MAC_LIMIT_SYS_DROP", "MAC_LIMIT_VLAN_DROP", "MAC_LIMIT_PORT_DROP", + "SWITCH_MAC_DROP", "ROUTING_EXCEPTION_DROP", "DA_LKMISS_DROP", "RSPAN_DROP", + "ACL_LKMISS_DROP", "ACL_DROP", "INBW_DROP", "IGR_METER_DROP", + "ACCEPT_FRAME_TYPE_DROP", "STP_IGR_DROP", "INVALID_SA_DROP", "SA_BLOCKING_DROP", + "DA_BLOCKING_DROP", "L2_INVALID_DPM_DROP", "MCST_INVALID_DPM_DROP", "RX_FLOW_CONTROL_DROP", + "STORM_SPPRS_DROP", "LALS_DROP", "VLAN_EGR_FILTER_DROP", "STP_EGR_DROP", + "SRC_PORT_FILTER_DROP", "PORT_ISOLATION_DROP", "ACL_FLTR_DROP", "MIRROR_FLTR_DROP", + "TX_MAX_DROP", "LINK_DOWN_DROP", "FLOW_CONTROL_DROP", "BRIDGE .1d discards" +}; + +const char *rtl839x_drop_cntr[] = { + "ALE_TX_GOOD_PKTS", "ERROR_PKTS", "EGR_ACL_DROP", "EGR_METER_DROP", + "OAM", "CFM" "VLAN_IGR_FLTR", "VLAN_ERR", + "INNER_OUTER_CFI_EQUAL_1", "VLAN_TAG_FORMAT", "SRC_PORT_SPENDING_TREE", "INBW", + "RMA", "HW_ATTACK_PREVENTION", "PROTO_STORM", "MCAST_SA", + "IGR_ACL_DROP", "IGR_METER_DROP", "DFLT_ACTION_FOR_MISS_ACL_AND_C2SC", "NEW_SA", + "PORT_MOVE", "SA_BLOCKING", "ROUTING_EXCEPTION", "SRC_PORT_SPENDING_TREE_NON_FWDING", + "MAC_LIMIT", "UNKNOW_STORM", "MISS_DROP", "CPU_MAC_DROP", + "DA_BLOCKING", "SRC_PORT_FILTER_BEFORE_EGR_ACL", "VLAN_EGR_FILTER", "SPANNING_TRE", + "PORT_ISOLATION", "OAM_EGRESS_DROP", "MIRROR_ISOLATION", "MAX_LEN_BEFORE_EGR_ACL", + "SRC_PORT_FILTER_BEFORE_MIRROR", "MAX_LEN_BEFORE_MIRROR", "SPECIAL_CONGEST_BEFORE_MIRROR", + "LINK_STATUS_BEFORE_MIRROR", + "WRED_BEFORE_MIRROR", "MAX_LEN_AFTER_MIRROR", "SPECIAL_CONGEST_AFTER_MIRROR", + "LINK_STATUS_AFTER_MIRROR", + "WRED_AFTER_MIRROR" +}; + +const char *rtl930x_drop_cntr[] = { + "OAM_PARSER", "UC_RPF", "DEI_CFI", "MAC_IP_SUBNET_BASED_VLAN", "VLAN_IGR_FILTER", + "L2_UC_MC", "IPV_IP6_MC_BRIDGE", "PTP", "USER_DEF_0_3", "RESERVED", + "RESERVED1", "RESERVED2", "BPDU_RMA", "LACP", "LLDP", + "EAPOL", "XX_RMA", "L3_IPUC_NON_IP", "IP4_IP6_HEADER_ERROR", "L3_BAD_IP", + "L3_DIP_DMAC_MISMATCH", "IP4_IP_OPTION", "IP_UC_MC_ROUTING_LOOK_UP_MISS", "L3_DST_NULL_INTF", + "L3_PBR_NULL_INTF", + "HOST_NULL_INTF", "ROUTE_NULL_INTF", "BRIDGING_ACTION", "ROUTING_ACTION", "IPMC_RPF", + "L2_NEXTHOP_AGE_OUT", "L3_UC_TTL_FAIL", "L3_MC_TTL_FAIL", "L3_UC_MTU_FAIL", "L3_MC_MTU_FAIL", + "L3_UC_ICMP_REDIR", "IP6_MLD_OTHER_ACT", "ND", "IP_MC_RESERVED", "IP6_HBH", + "INVALID_SA", "L2_HASH_FULL", "NEW_SA", "PORT_MOVE_FORBID", "STATIC_PORT_MOVING", + "DYNMIC_PORT_MOVING", "L3_CRC", "MAC_LIMIT", "ATTACK_PREVENT", "ACL_FWD_ACTION", + "OAMPDU", "OAM_MUX", "TRUNK_FILTER", "ACL_DROP", "IGR_BW", + "ACL_METER", "VLAN_ACCEPT_FRAME_TYPE", "MSTP_SRC_DROP_DISABLED_BLOCKING", "SA_BLOCK", "DA_BLOCK", + "STORM_CONTROL", "VLAN_EGR_FILTER", "MSTP_DESTINATION_DROP", "SRC_PORT_FILTER", "PORT_ISOLATION", + "TX_MAX_FRAME_SIZE", "EGR_LINK_STATUS", "MAC_TX_DISABLE", "MAC_PAUSE_FRAME", "MAC_RX_DROP", + "MIRROR_ISOLATE", "RX_FC", "EGR_QUEUE", "HSM_RUNOUT", "ROUTING_DISABLE", "INVALID_L2_NEXTHOP_ENTRY", + "L3_MC_SRC_FLT", "CPUTAG_FLT", "FWD_PMSK_NULL", "IPUC_ROUTING_LOOKUP_MISS", "MY_DEV_DROP", + "STACK_NONUC_BLOCKING_PMSK", "STACK_PORT_NOT_FOUND", "ACL_LOOPBACK_DROP", "IP6_ROUTING_EXT_HEADER" +}; + static ssize_t rtl838x_common_read(char __user *buffer, size_t count, loff_t *ppos, unsigned int value) { @@ -134,6 +190,61 @@ static const struct file_operations stp_state_fops = { .write = stp_state_write, }; +static ssize_t drop_counter_read(struct file *filp, char __user *buffer, size_t count, + loff_t *ppos) +{ + struct rtl838x_switch_priv *priv = filp->private_data; + int i; + const char **d; + u32 v; + char *buf; + int n = 0, len, offset; + int num; + + switch (priv->family_id) { + case RTL8380_FAMILY_ID: + d = rtl838x_drop_cntr; + offset = RTL838X_STAT_PRVTE_DROP_COUNTERS; + num = 40; + break; + case RTL8390_FAMILY_ID: + d = rtl839x_drop_cntr; + offset = RTL839X_STAT_PRVTE_DROP_COUNTERS; + num = 45; + break; + case RTL9300_FAMILY_ID: + d = rtl930x_drop_cntr; + offset = RTL930X_STAT_PRVTE_DROP_COUNTERS; + num = 85; + break; + } + + buf = kmalloc(30 * num, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + for (i = 0; i < num; i++) { + v = sw_r32(offset + (i << 2)) & 0xffff; + n += sprintf(buf + n, "%s: %d\n", d[i], v); + } + + if (count < strlen(buf)) { + kfree(buf); + return -ENOSPC; + } + + len = simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf)); + kfree(buf); + + return len; +} + +static const struct file_operations drop_counter_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .read = drop_counter_read, +}; + static ssize_t age_out_read(struct file *filp, char __user *buffer, size_t count, loff_t *ppos) { @@ -470,7 +581,23 @@ void rtl838x_dbgfs_init(struct rtl838x_switch_priv *priv) if (ret) goto err; + debugfs_create_file("drop_counters", 0400, rtl838x_dir, priv, &drop_counter_fops); + return; err: rtl838x_dbgfs_cleanup(priv); } + +void rtl930x_dbgfs_init(struct rtl838x_switch_priv *priv) +{ + struct dentry *dbg_dir; + + pr_info("%s called\n", __func__); + dbg_dir = debugfs_lookup(RTL838X_DRIVER_NAME, NULL); + if (!dbg_dir) + dbg_dir = debugfs_create_dir(RTL838X_DRIVER_NAME, NULL); + + priv->dbgfs_dir = dbg_dir; + + debugfs_create_file("drop_counters", 0400, dbg_dir, priv, &drop_counter_fops); +} -- 2.30.2