[PATCH net-next 6/9] drivers: net: xgene: Add rx_overrun/tx_underrun statistic
Iyappan Subramanian
isubramanian at apm.com
Wed Apr 26 19:38:52 EDT 2017
From: Quan Nguyen <qnguyen at apm.com>
This patch adds rx_overrun and tx_underrun ethtool statistic counters.
Signed-off-by: Quan Nguyen <qnguyen at apm.com>
Signed-off-by: Iyappan Subramanian <isubramanian at apm.com>
---
drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c | 16 +++++++++++++---
drivers/net/ethernet/apm/xgene/xgene_enet_hw.c | 11 +++++++++++
drivers/net/ethernet/apm/xgene/xgene_enet_hw.h | 8 ++++++++
drivers/net/ethernet/apm/xgene/xgene_enet_main.h | 1 +
drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c | 14 ++++++++++++++
drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c | 11 +++++++++++
drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.h | 4 ++++
7 files changed, 62 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c b/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c
index bbc90b6..369658b 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c
@@ -71,6 +71,7 @@ struct xgene_gstrings_stats {
XGENE_EXTD_STAT(rx_fragments_cntr, RFRG, 16),
XGENE_EXTD_STAT(rx_jabber_cntr, RJBR, 16),
XGENE_EXTD_STAT(rx_dropped_pkt_cntr, RDRP, 16),
+ XGENE_EXTD_STAT(rx_overrun_cntr, DUMP, 0),
XGENE_EXTD_STAT(tx_multicast_pkt_cntr, TMCA, 31),
XGENE_EXTD_STAT(tx_broadcast_pkt_cntr, TBCA, 31),
XGENE_EXTD_STAT(tx_pause_ctrl_frame_cntr, TXPF, 16),
@@ -88,11 +89,14 @@ struct xgene_gstrings_stats {
XGENE_EXTD_STAT(tx_ctrl_frame_cntr, TXCF, 12),
XGENE_EXTD_STAT(tx_oversize_frame_cntr, TOVR, 12),
XGENE_EXTD_STAT(tx_undersize_frame_cntr, TUND, 12),
- XGENE_EXTD_STAT(tx_fragments_cntr, TFRG, 12)
+ XGENE_EXTD_STAT(tx_fragments_cntr, TFRG, 12),
+ XGENE_EXTD_STAT(tx_underrun_cntr, DUMP, 0)
};
#define XGENE_STATS_LEN ARRAY_SIZE(gstrings_stats)
#define XGENE_EXTD_STATS_LEN ARRAY_SIZE(gstrings_extd_stats)
+#define RX_OVERRUN_IDX 22
+#define TX_UNDERRUN_IDX 41
static void xgene_get_drvinfo(struct net_device *ndev,
struct ethtool_drvinfo *info)
@@ -211,15 +215,21 @@ static int xgene_get_sset_count(struct net_device *ndev, int sset)
static void xgene_get_extd_stats(struct xgene_enet_pdata *pdata)
{
+ u32 rx_drop, tx_drop;
u32 tmp;
int i;
for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) {
pdata->mac_ops->read_stats(pdata,
gstrings_extd_stats[i].addr, &tmp);
- pdata->extd_stats[i] += tmp &
- GENMASK(gstrings_extd_stats[i].mask - 1, 0);
+ if (gstrings_extd_stats[i].mask)
+ pdata->extd_stats[i] += tmp &
+ GENMASK(gstrings_extd_stats[i].mask - 1, 0);
}
+
+ pdata->mac_ops->get_drop_cnt(pdata, &rx_drop, &tx_drop);
+ pdata->extd_stats[RX_OVERRUN_IDX] += rx_drop;
+ pdata->extd_stats[TX_UNDERRUN_IDX] += tx_drop;
}
int xgene_extd_stats_init(struct xgene_enet_pdata *pdata)
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
index ec5f61f..f79eb78 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
@@ -615,6 +615,16 @@ static void xgene_gmac_init(struct xgene_enet_pdata *pdata)
xgene_enet_wr_csr(pdata, CFG_BYPASS_ADDR, RESUME_TX);
}
+static void xgene_gmac_get_drop_cnt(struct xgene_enet_pdata *pdata,
+ u32 *rx, u32 *tx)
+{
+ u32 count;
+
+ xgene_enet_rd_mcx_csr(pdata, ICM_ECM_DROP_COUNT_REG0_ADDR, &count);
+ *rx = ICM_DROP_COUNT(count);
+ *tx = ECM_DROP_COUNT(count);
+}
+
static void xgene_enet_config_ring_if_assoc(struct xgene_enet_pdata *pdata)
{
u32 val = 0xffffffff;
@@ -1025,6 +1035,7 @@ void xgene_enet_mdio_remove(struct xgene_enet_pdata *pdata)
.rx_disable = xgene_gmac_rx_disable,
.tx_disable = xgene_gmac_tx_disable,
.read_stats = xgene_enet_rd_mcx_stats,
+ .get_drop_cnt = xgene_gmac_get_drop_cnt,
.set_speed = xgene_gmac_set_speed,
.set_mac_addr = xgene_gmac_set_mac_addr,
.set_framesize = xgene_enet_set_frame_size,
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h
index 9130c05..c5672df 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h
@@ -192,6 +192,10 @@ enum xgene_enet_rm {
#define CFG_CLE_NXTFPSEL0(val) (((val) << 20) & GENMASK(23, 20))
#define ICM_CONFIG0_REG_0_ADDR 0x0400
#define ICM_CONFIG2_REG_0_ADDR 0x0410
+#define ECM_CONFIG0_REG_0_ADDR 0x0500
+#define ECM_CONFIG0_REG_1_ADDR 0x0504
+#define ICM_ECM_DROP_COUNT_REG0_ADDR 0x0508
+#define ICM_ECM_DROP_COUNT_REG1_ADDR 0x050c
#define RX_DV_GATE_REG_0_ADDR 0x05fc
#define TX_DV_GATE_EN0 BIT(2)
#define RX_DV_GATE_EN0 BIT(1)
@@ -267,6 +271,10 @@ enum xgene_enet_rm {
#define TOVR_ADDR 0x49
#define TUND_ADDR 0x4a
#define TFRG_ADDR 0x4b
+#define DUMP_ADDR 0x27
+
+#define ECM_DROP_COUNT(src) xgene_get_bits(src, 0, 15)
+#define ICM_DROP_COUNT(src) xgene_get_bits(src, 16, 31)
#define TSO_IPPROTO_TCP 1
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.h b/drivers/net/ethernet/apm/xgene/xgene_enet_main.h
index dc56519..e4b7786 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.h
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.h
@@ -158,6 +158,7 @@ struct xgene_mac_ops {
void (*tx_disable)(struct xgene_enet_pdata *pdata);
void (*rx_disable)(struct xgene_enet_pdata *pdata);
void (*read_stats)(struct xgene_enet_pdata *pdata, u32 addr, u32 *data);
+ void (*get_drop_cnt)(struct xgene_enet_pdata *pdata, u32 *rx, u32 *tx);
void (*set_speed)(struct xgene_enet_pdata *pdata);
void (*set_mac_addr)(struct xgene_enet_pdata *pdata);
void (*set_framesize)(struct xgene_enet_pdata *pdata, int framesize);
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
index ec4341c..b253069 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
@@ -186,6 +186,19 @@ static int xgene_enet_ecc_init(struct xgene_enet_pdata *p)
return -ENODEV;
}
+static void xgene_sgmac_get_drop_cnt(struct xgene_enet_pdata *pdata,
+ u32 *rx, u32 *tx)
+{
+ u32 addr, count;
+
+ addr = (pdata->enet_id != XGENE_ENET1) ?
+ XG_MCX_ICM_ECM_DROP_COUNT_REG0_ADDR :
+ ICM_ECM_DROP_COUNT_REG0_ADDR + pdata->port_id * OFFSET_4;
+ count = xgene_enet_rd_mcx_csr(pdata, addr);
+ *rx = ICM_DROP_COUNT(count);
+ *tx = ECM_DROP_COUNT(count);
+}
+
static void xgene_enet_config_ring_if_assoc(struct xgene_enet_pdata *p)
{
u32 val;
@@ -692,6 +705,7 @@ static void xgene_sgmac_enable_tx_pause(struct xgene_enet_pdata *p, bool enable)
.rx_disable = xgene_sgmac_rx_disable,
.tx_disable = xgene_sgmac_tx_disable,
.read_stats = xgene_enet_rd_mcx_stats,
+ .get_drop_cnt = xgene_sgmac_get_drop_cnt,
.set_speed = xgene_sgmac_set_speed,
.set_mac_addr = xgene_sgmac_set_mac_addr,
.set_framesize = xgene_sgmac_set_frame_size,
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c
index 0a28162..a317596 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c
@@ -231,6 +231,16 @@ static int xgene_enet_ecc_init(struct xgene_enet_pdata *pdata)
return 0;
}
+static void xgene_xgmac_get_drop_cnt(struct xgene_enet_pdata *pdata,
+ u32 *rx, u32 *tx)
+{
+ u32 count;
+
+ xgene_enet_rd_axg_csr(pdata, XGENET_ICM_ECM_DROP_COUNT_REG0, &count);
+ *rx = ICM_DROP_COUNT(count);
+ *tx = ECM_DROP_COUNT(count);
+}
+
static void xgene_enet_config_ring_if_assoc(struct xgene_enet_pdata *pdata)
{
xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIWQASSOC_ADDR, 0);
@@ -589,6 +599,7 @@ static void xgene_enet_link_state(struct work_struct *work)
.set_framesize = xgene_xgmac_set_frame_size,
.set_mss = xgene_xgmac_set_mss,
.read_stats = xgene_enet_rd_axg_stats,
+ .get_drop_cnt = xgene_xgmac_get_drop_cnt,
.link_state = xgene_enet_link_state,
.enable_tx_pause = xgene_xgmac_enable_tx_pause,
.flowctl_rx = xgene_xgmac_flowctl_rx,
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.h b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.h
index 9b98c83..a3b4551 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.h
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.h
@@ -71,6 +71,8 @@
#define XG_RSIF_CONFIG1_REG_ADDR 0x00b8
#define XG_RSIF_PLC_CLE_BUFF_THRESH 0x1
#define RSIF_PLC_CLE_BUFF_THRESH_SET(dst, val) xgene_set_bits(dst, val, 0, 2)
+#define XG_MCX_ECM_CONFIG0_REG_0_ADDR 0x0070
+#define XG_MCX_ICM_ECM_DROP_COUNT_REG0_ADDR 0x0124
#define XCLE_BYPASS_REG0_ADDR 0x0160
#define XCLE_BYPASS_REG1_ADDR 0x0164
#define XG_CFG_BYPASS_ADDR 0x0204
@@ -81,6 +83,8 @@
#define XG_ENET_SPARE_CFG_REG_ADDR 0x040c
#define XG_ENET_SPARE_CFG_REG_1_ADDR 0x0410
#define XGENET_RX_DV_GATE_REG_0_ADDR 0x0804
+#define XGENET_ECM_CONFIG0_REG_0 0x0870
+#define XGENET_ICM_ECM_DROP_COUNT_REG0 0x0924
#define XGENET_CSR_ECM_CFG_0_ADDR 0x0880
#define XGENET_CSR_MULTI_DPF0_ADDR 0x0888
#define XGENET_CSR_MULTI_DPF1_ADDR 0x088c
--
1.9.1
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