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Date: Tue, 15 Nov 2022 10:51:31 -0600 From: Jerry Ray <jerry.ray@...rochip.com> To: Andrew Lunn <andrew@...n.ch>, Florian Fainelli <f.fainelli@...il.com>, Vladimir Oltean <olteanv@...il.com>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, "Paolo Abeni" <pabeni@...hat.com>, <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Jerry Ray <jerry.ray@...rochip.com> Subject: [net-next][PATCH v2 2/2] dsa: lan9303: Add 2 ethtool stats Adding RxDropped and TxDropped counters to the reported statistics. As these stats are kept by the switch rather than the port instance, they are indexed differently. Signed-off-by: Jerry Ray <jerry.ray@...rochip.com> --- v1->v2: Split patch into 2 pieces. Removed the adding of a module number to the driver. --- drivers/net/dsa/lan9303-core.c | 38 ++++++++++++++++++++++++++++------ 1 file changed, 32 insertions(+), 6 deletions(-) diff --git a/drivers/net/dsa/lan9303-core.c b/drivers/net/dsa/lan9303-core.c index 80f07bd20593..714a21d7aa0a 100644 --- a/drivers/net/dsa/lan9303-core.c +++ b/drivers/net/dsa/lan9303-core.c @@ -177,10 +177,12 @@ #define LAN9303_SWE_INGRESS_PORT_TYPE 0x1847 #define LAN9303_SWE_INGRESS_PORT_TYPE_VLAN 3 #define LAN9303_BM_CFG 0x1c00 +#define LAN9303_BM_DRP_CNT_SRC_0 0x1c05 #define LAN9303_BM_EGRSS_PORT_TYPE 0x1c0c # define LAN9303_BM_EGRSS_PORT_TYPE_SPECIAL_TAG_PORT2 (BIT(17) | BIT(16)) # define LAN9303_BM_EGRSS_PORT_TYPE_SPECIAL_TAG_PORT1 (BIT(9) | BIT(8)) # define LAN9303_BM_EGRSS_PORT_TYPE_SPECIAL_TAG_PORT0 (BIT(1) | BIT(0)) +#define LAN9303_BM_RATE_DRP_CNT_SRC_0 0x1c16 #define LAN9303_SWITCH_PORT_REG(port, reg0) (0x400 * (port) + (reg0)) @@ -978,10 +980,16 @@ static const struct lan9303_mib_desc lan9303_mib[] = { { .offset = LAN9303_MAC_TX_LATECOL_0, .name = "TxLateCol", }, }; +/* Buffer Management Statistics (indexed by port) */ +static const struct lan9303_mib_desc lan9303_switch_mib[] = { + { .offset = LAN9303_BM_RATE_DRP_CNT_SRC_0, .name = "RxDropped", }, + { .offset = LAN9303_BM_DRP_CNT_SRC_0, .name = "TxDropped", }, +}; + static void lan9303_get_strings(struct dsa_switch *ds, int port, u32 stringset, uint8_t *data) { - unsigned int u; + unsigned int i, u; if (stringset != ETH_SS_STATS) return; @@ -990,26 +998,44 @@ static void lan9303_get_strings(struct dsa_switch *ds, int port, strncpy(data + u * ETH_GSTRING_LEN, lan9303_mib[u].name, ETH_GSTRING_LEN); } + for (i = 0; i < ARRAY_SIZE(lan9303_switch_mib); i++) { + strncpy(data + (u + i) * ETH_GSTRING_LEN, + lan9303_switch_mib[i].name, ETH_GSTRING_LEN); + } } static void lan9303_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data) { struct lan9303 *chip = ds->priv; - unsigned int u; + unsigned int i, u; for (u = 0; u < ARRAY_SIZE(lan9303_mib); u++) { u32 reg; int ret; - ret = lan9303_read_switch_port( - chip, port, lan9303_mib[u].offset, ®); - + /* Read Port-based MIB stats. */ + ret = lan9303_read_switch_port(chip, port, + lan9303_mib[u].offset, + ®); if (ret) dev_warn(chip->dev, "Reading status port %d reg %u failed\n", port, lan9303_mib[u].offset); data[u] = reg; } + for (i = 0; i < ARRAY_SIZE(lan9303_switch_mib); i++) { + u32 reg; + int ret; + + /* Read Switch stats indexed by port. */ + ret = lan9303_read_switch_reg(chip, + (lan9303_switch_mib[i].offset + + port), ®); + if (ret) + dev_warn(chip->dev, "Reading status port %d reg %u failed\n", + port, lan9303_switch_mib[i].offset); + data[i + u] = reg; + } } static int lan9303_get_sset_count(struct dsa_switch *ds, int port, int sset) @@ -1017,7 +1043,7 @@ static int lan9303_get_sset_count(struct dsa_switch *ds, int port, int sset) if (sset != ETH_SS_STATS) return 0; - return ARRAY_SIZE(lan9303_mib); + return ARRAY_SIZE(lan9303_mib) + ARRAY_SIZE(lan9303_switch_mib); } static int lan9303_phy_read(struct dsa_switch *ds, int phy, int regnum) -- 2.17.1
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