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Message-Id: <20220830070454.146211-16-jiawenwu@trustnetic.com>
Date: Tue, 30 Aug 2022 15:04:53 +0800
From: Jiawen Wu <jiawenwu@...stnetic.com>
To: netdev@...r.kernel.org
Cc: mengyuanlou@...-swift.com, Jiawen Wu <jiawenwu@...stnetic.com>
Subject: [PATCH net-next v2 15/16] net: txgbe: Support to get system network statistics
Support to get system network statistics.
Signed-off-by: Jiawen Wu <jiawenwu@...stnetic.com>
---
drivers/net/ethernet/wangxun/txgbe/txgbe.h | 13 ++
.../net/ethernet/wangxun/txgbe/txgbe_dummy.h | 5 +
drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c | 53 +++++
drivers/net/ethernet/wangxun/txgbe/txgbe_hw.h | 1 +
.../net/ethernet/wangxun/txgbe/txgbe_main.c | 186 ++++++++++++++++++
.../net/ethernet/wangxun/txgbe/txgbe_type.h | 90 +++++++++
6 files changed, 348 insertions(+)
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe.h b/drivers/net/ethernet/wangxun/txgbe/txgbe.h
index ef5f86261a45..52a26b5b0ced 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe.h
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe.h
@@ -359,10 +359,20 @@ struct txgbe_adapter {
/* TX */
struct txgbe_ring *tx_ring[TXGBE_MAX_TX_QUEUES] ____cacheline_aligned_in_smp;
+ u64 restart_queue;
u64 lsc_int;
/* RX */
struct txgbe_ring *rx_ring[TXGBE_MAX_RX_QUEUES];
+ u64 hw_csum_rx_error;
+ u64 hw_csum_rx_good;
+ u64 hw_rx_no_dma_resources;
+ u64 rsc_total_count;
+ u64 rsc_total_flush;
+ u64 non_eop_descs;
+ u32 alloc_rx_page_failed;
+ u32 alloc_rx_buff_failed;
+
struct txgbe_q_vector *q_vector[MAX_MSIX_Q_VECTORS];
int num_q_vectors; /* current number of q_vectors for device */
@@ -372,7 +382,9 @@ struct txgbe_adapter {
/* structs defined in txgbe_type.h */
struct txgbe_hw hw;
u16 msg_enable;
+ struct txgbe_hw_stats stats;
+ u64 tx_busy;
unsigned int tx_ring_count;
unsigned int rx_ring_count;
@@ -452,6 +464,7 @@ void txgbe_configure_rx_ring(struct txgbe_adapter *adapter,
struct txgbe_ring *ring);
void txgbe_configure_tx_ring(struct txgbe_adapter *adapter,
struct txgbe_ring *ring);
+void txgbe_update_stats(struct txgbe_adapter *adapter);
int txgbe_init_interrupt_scheme(struct txgbe_adapter *adapter);
void txgbe_reset_interrupt_capability(struct txgbe_adapter *adapter);
void txgbe_set_interrupt_capability(struct txgbe_adapter *adapter);
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_dummy.h b/drivers/net/ethernet/wangxun/txgbe/txgbe_dummy.h
index 90118d1602c4..561cefd40670 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_dummy.h
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_dummy.h
@@ -52,6 +52,10 @@ static int txgbe_init_hw_dummy(struct txgbe_hw *TUP0)
return -EPERM;
}
+static void txgbe_clear_hw_cntrs_dummy(struct txgbe_hw *TUP0)
+{
+}
+
static void txgbe_get_mac_addr_dummy(struct txgbe_hw *TUP0, u8 *TUP1)
{
}
@@ -244,6 +248,7 @@ static void txgbe_init_ops_dummy(struct txgbe_hw *hw)
/* MAC */
mac->ops.init_hw = txgbe_init_hw_dummy;
+ mac->ops.clear_hw_cntrs = txgbe_clear_hw_cntrs_dummy;
mac->ops.get_mac_addr = txgbe_get_mac_addr_dummy;
mac->ops.stop_adapter = txgbe_stop_adapter_dummy;
mac->ops.set_lan_id = txgbe_bus_set_lan_id_dummy;
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c
index b3cb0a846260..3e751a9557f8 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c
@@ -107,6 +107,55 @@ int txgbe_init_hw(struct txgbe_hw *hw)
return status;
}
+/**
+ * txgbe_clear_hw_cntrs - Generic clear hardware counters
+ * @hw: pointer to hardware structure
+ *
+ * Clears all hardware statistics counters by reading them from the hardware
+ * Statistics counters are clear on read.
+ **/
+void txgbe_clear_hw_cntrs(struct txgbe_hw *hw)
+{
+ u16 i = 0;
+
+ rd32(hw, TXGBE_RX_CRC_ERROR_FRAMES_LOW);
+ for (i = 0; i < 8; i++)
+ rd32(hw, TXGBE_RDB_MPCNT(i));
+
+ rd32(hw, TXGBE_RX_LEN_ERROR_FRAMES_LOW);
+ rd32(hw, TXGBE_RDB_LXONTXC);
+ rd32(hw, TXGBE_RDB_LXOFFTXC);
+ rd32(hw, TXGBE_MAC_LXONRXC);
+ rd32(hw, TXGBE_MAC_LXOFFRXC);
+
+ for (i = 0; i < 8; i++) {
+ rd32(hw, TXGBE_RDB_PXONTXC(i));
+ rd32(hw, TXGBE_RDB_PXOFFTXC(i));
+ rd32(hw, TXGBE_MAC_PXONRXC(i));
+ wr32m(hw, TXGBE_MMC_CONTROL,
+ TXGBE_MMC_CONTROL_UP, i << 16);
+ rd32(hw, TXGBE_MAC_PXOFFRXC);
+ }
+ for (i = 0; i < 8; i++)
+ rd32(hw, TXGBE_RDB_PXON2OFFCNT(i));
+ for (i = 0; i < 128; i++)
+ wr32(hw, TXGBE_PX_MPRC(i), 0);
+
+ rd32(hw, TXGBE_PX_GPRC);
+ rd32(hw, TXGBE_PX_GPTC);
+ rd32(hw, TXGBE_PX_GORC_MSB);
+ rd32(hw, TXGBE_PX_GOTC_MSB);
+
+ rd32(hw, TXGBE_RX_BC_FRAMES_GOOD_LOW);
+ rd32(hw, TXGBE_RX_UNDERSIZE_FRAMES_GOOD);
+ rd32(hw, TXGBE_RX_OVERSIZE_FRAMES_GOOD);
+ rd32(hw, TXGBE_RX_FRAME_CNT_GOOD_BAD_LOW);
+ rd32(hw, TXGBE_TX_FRAME_CNT_GOOD_BAD_LOW);
+ rd32(hw, TXGBE_TX_MC_FRAMES_GOOD_LOW);
+ rd32(hw, TXGBE_TX_BC_FRAMES_GOOD_LOW);
+ rd32(hw, TXGBE_RDM_DRP_PKT);
+}
+
/**
* txgbe_read_pba_string - Reads part number string from EEPROM
* @hw: pointer to hardware structure
@@ -1995,6 +2044,7 @@ void txgbe_init_ops(struct txgbe_hw *hw)
/* MAC */
mac->ops.init_hw = txgbe_init_hw;
+ mac->ops.clear_hw_cntrs = txgbe_clear_hw_cntrs;
mac->ops.get_mac_addr = txgbe_get_mac_addr;
mac->ops.stop_adapter = txgbe_stop_adapter;
mac->ops.set_lan_id = txgbe_set_lan_id_multi_port_pcie;
@@ -3308,6 +3358,9 @@ void txgbe_start_hw(struct txgbe_hw *hw)
/* Clear the VLAN filter table */
hw->mac.ops.clear_vfta(hw);
+ /* Clear statistics registers */
+ hw->mac.ops.clear_hw_cntrs(hw);
+
TXGBE_WRITE_FLUSH(hw);
/* Clear the rate limiters */
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.h b/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.h
index 5799838fd10c..d0a6d73e0b28 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.h
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.h
@@ -80,6 +80,7 @@ extern struct txgbe_dptype txgbe_ptype_lookup[256];
u16 txgbe_get_pcie_msix_count(struct txgbe_hw *hw);
int txgbe_init_hw(struct txgbe_hw *hw);
void txgbe_start_hw(struct txgbe_hw *hw);
+void txgbe_clear_hw_cntrs(struct txgbe_hw *hw);
int txgbe_read_pba_string(struct txgbe_hw *hw, u8 *pba_num,
u32 pba_num_size);
void txgbe_get_mac_addr(struct txgbe_hw *hw, u8 *mac_addr);
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
index 63c396f8a42d..c27a6a8b609e 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
@@ -3315,6 +3315,189 @@ static void txgbe_shutdown(struct pci_dev *pdev)
}
}
+/**
+ * txgbe_get_stats64 - Get System Network Statistics
+ * @netdev: network interface device structure
+ * @stats: storage space for 64bit statistics
+ */
+static void txgbe_get_stats64(struct net_device *netdev,
+ struct rtnl_link_stats64 *stats)
+{
+ struct txgbe_adapter *adapter = netdev_priv(netdev);
+ int i;
+
+ rcu_read_lock();
+ for (i = 0; i < adapter->num_rx_queues; i++) {
+ struct txgbe_ring *ring = READ_ONCE(adapter->rx_ring[i]);
+ u64 bytes, packets;
+ unsigned int start;
+
+ if (ring) {
+ do {
+ start = u64_stats_fetch_begin_irq(&ring->syncp);
+ packets = ring->stats.packets;
+ bytes = ring->stats.bytes;
+ } while (u64_stats_fetch_retry_irq(&ring->syncp,
+ start));
+ stats->rx_packets += packets;
+ stats->rx_bytes += bytes;
+ }
+ }
+
+ for (i = 0; i < adapter->num_tx_queues; i++) {
+ struct txgbe_ring *ring = READ_ONCE(adapter->tx_ring[i]);
+ u64 bytes, packets;
+ unsigned int start;
+
+ if (ring) {
+ do {
+ start = u64_stats_fetch_begin_irq(&ring->syncp);
+ packets = ring->stats.packets;
+ bytes = ring->stats.bytes;
+ } while (u64_stats_fetch_retry_irq(&ring->syncp,
+ start));
+ stats->tx_packets += packets;
+ stats->tx_bytes += bytes;
+ }
+ }
+ rcu_read_unlock();
+ /* following stats updated by txgbe_watchdog_subtask() */
+ stats->multicast = netdev->stats.multicast;
+ stats->rx_errors = netdev->stats.rx_errors;
+ stats->rx_length_errors = netdev->stats.rx_length_errors;
+ stats->rx_crc_errors = netdev->stats.rx_crc_errors;
+ stats->rx_missed_errors = netdev->stats.rx_missed_errors;
+}
+
+/**
+ * txgbe_update_stats - Update the board statistics counters.
+ * @adapter: board private structure
+ **/
+void txgbe_update_stats(struct txgbe_adapter *adapter)
+{
+ struct net_device_stats *net_stats = &adapter->netdev->stats;
+ struct txgbe_hw_stats *hwstats = &adapter->stats;
+ struct txgbe_hw *hw = &adapter->hw;
+
+ u64 alloc_rx_page_failed = 0, alloc_rx_buff_failed = 0;
+ u64 non_eop_descs = 0, restart_queue = 0, tx_busy = 0;
+ u64 hw_csum_rx_good = 0, hw_csum_rx_error = 0;
+ u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff;
+ u64 bytes = 0, packets = 0;
+ u64 total_mpc = 0;
+
+ if (test_bit(__TXGBE_DOWN, &adapter->state) ||
+ test_bit(__TXGBE_RESETTING, &adapter->state))
+ return;
+
+ if (adapter->flags2 & TXGBE_FLAG2_RSC_ENABLED) {
+ u64 rsc_count = 0;
+ u64 rsc_flush = 0;
+
+ for (i = 0; i < adapter->num_rx_queues; i++) {
+ rsc_count += adapter->rx_ring[i]->rx_stats.rsc_count;
+ rsc_flush += adapter->rx_ring[i]->rx_stats.rsc_flush;
+ }
+ adapter->rsc_total_count = rsc_count;
+ adapter->rsc_total_flush = rsc_flush;
+ }
+
+ for (i = 0; i < adapter->num_rx_queues; i++) {
+ struct txgbe_ring *rx_ring = adapter->rx_ring[i];
+
+ non_eop_descs += rx_ring->rx_stats.non_eop_descs;
+ alloc_rx_page_failed += rx_ring->rx_stats.alloc_rx_page_failed;
+ alloc_rx_buff_failed += rx_ring->rx_stats.alloc_rx_buff_failed;
+ hw_csum_rx_error += rx_ring->rx_stats.csum_err;
+ hw_csum_rx_good += rx_ring->rx_stats.csum_good_cnt;
+ bytes += rx_ring->stats.bytes;
+ packets += rx_ring->stats.packets;
+ }
+ adapter->non_eop_descs = non_eop_descs;
+ adapter->alloc_rx_page_failed = alloc_rx_page_failed;
+ adapter->alloc_rx_buff_failed = alloc_rx_buff_failed;
+ adapter->hw_csum_rx_error = hw_csum_rx_error;
+ adapter->hw_csum_rx_good = hw_csum_rx_good;
+ net_stats->rx_bytes = bytes;
+ net_stats->rx_packets = packets;
+
+ bytes = 0;
+ packets = 0;
+ /* gather some stats to the adapter struct that are per queue */
+ for (i = 0; i < adapter->num_tx_queues; i++) {
+ struct txgbe_ring *tx_ring = adapter->tx_ring[i];
+
+ restart_queue += tx_ring->tx_stats.restart_queue;
+ tx_busy += tx_ring->tx_stats.tx_busy;
+ bytes += tx_ring->stats.bytes;
+ packets += tx_ring->stats.packets;
+ }
+ adapter->restart_queue = restart_queue;
+ adapter->tx_busy = tx_busy;
+ net_stats->tx_bytes = bytes;
+ net_stats->tx_packets = packets;
+
+ hwstats->crcerrs += rd32(hw, TXGBE_RX_CRC_ERROR_FRAMES_LOW);
+
+ /* 8 register reads */
+ for (i = 0; i < 8; i++) {
+ /* for packet buffers not used, the register should read 0 */
+ mpc = rd32(hw, TXGBE_RDB_MPCNT(i));
+ missed_rx += mpc;
+ hwstats->mpc[i] += mpc;
+ total_mpc += hwstats->mpc[i];
+ hwstats->pxontxc[i] += rd32(hw, TXGBE_RDB_PXONTXC(i));
+ hwstats->pxofftxc[i] += rd32(hw, TXGBE_RDB_PXOFFTXC(i));
+ hwstats->pxonrxc[i] += rd32(hw, TXGBE_MAC_PXONRXC(i));
+ }
+
+ hwstats->gprc += rd32(hw, TXGBE_PX_GPRC);
+
+ hwstats->o2bgptc += rd32(hw, TXGBE_TDM_OS2BMC_CNT);
+ if (txgbe_check_mng_access(&adapter->hw)) {
+ hwstats->o2bspc += rd32(hw, TXGBE_MNG_OS2BMC_CNT);
+ hwstats->b2ospc += rd32(hw, TXGBE_MNG_BMC2OS_CNT);
+ }
+ hwstats->b2ogprc += rd32(hw, TXGBE_RDM_BMC2OS_CNT);
+ hwstats->gorc += rd32(hw, TXGBE_PX_GORC_LSB);
+ hwstats->gorc += (u64)rd32(hw, TXGBE_PX_GORC_MSB) << 32;
+
+ hwstats->gotc += rd32(hw, TXGBE_PX_GOTC_LSB);
+ hwstats->gotc += (u64)rd32(hw, TXGBE_PX_GOTC_MSB) << 32;
+
+ adapter->hw_rx_no_dma_resources += rd32(hw, TXGBE_RDM_DRP_PKT);
+ hwstats->lxonrxc += rd32(hw, TXGBE_MAC_LXONRXC);
+
+ bprc = rd32(hw, TXGBE_RX_BC_FRAMES_GOOD_LOW);
+ hwstats->bprc += bprc;
+ hwstats->mprc = 0;
+
+ for (i = 0; i < 128; i++)
+ hwstats->mprc += rd32(hw, TXGBE_PX_MPRC(i));
+
+ hwstats->roc += rd32(hw, TXGBE_RX_OVERSIZE_FRAMES_GOOD);
+ hwstats->rlec += rd32(hw, TXGBE_RX_LEN_ERROR_FRAMES_LOW);
+ lxon = rd32(hw, TXGBE_RDB_LXONTXC);
+ hwstats->lxontxc += lxon;
+ lxoff = rd32(hw, TXGBE_RDB_LXOFFTXC);
+ hwstats->lxofftxc += lxoff;
+
+ hwstats->gptc += rd32(hw, TXGBE_PX_GPTC);
+ hwstats->mptc += rd32(hw, TXGBE_TX_MC_FRAMES_GOOD_LOW);
+ hwstats->ruc += rd32(hw, TXGBE_RX_UNDERSIZE_FRAMES_GOOD);
+ hwstats->tpr += rd32(hw, TXGBE_RX_FRAME_CNT_GOOD_BAD_LOW);
+ hwstats->bptc += rd32(hw, TXGBE_TX_BC_FRAMES_GOOD_LOW);
+ /* Fill out the OS statistics structure */
+ net_stats->multicast = hwstats->mprc;
+
+ /* Rx Errors */
+ net_stats->rx_errors = hwstats->crcerrs + hwstats->rlec;
+ net_stats->rx_dropped = 0;
+ net_stats->rx_length_errors = hwstats->rlec;
+ net_stats->rx_crc_errors = hwstats->crcerrs;
+ net_stats->rx_missed_errors = total_mpc;
+}
+
/**
* txgbe_watchdog_update_link - update the link status
* @adapter: pointer to the device adapter structure
@@ -3485,6 +3668,8 @@ static void txgbe_watchdog_subtask(struct txgbe_adapter *adapter)
else
txgbe_watchdog_link_is_down(adapter);
+ txgbe_update_stats(adapter);
+
txgbe_watchdog_flush_tx(adapter);
}
@@ -4702,6 +4887,7 @@ static const struct net_device_ops txgbe_netdev_ops = {
.ndo_change_mtu = txgbe_change_mtu,
.ndo_vlan_rx_add_vid = txgbe_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = txgbe_vlan_rx_kill_vid,
+ .ndo_get_stats64 = txgbe_get_stats64,
.ndo_features_check = txgbe_features_check,
.ndo_set_features = txgbe_set_features,
.ndo_fix_features = txgbe_fix_features,
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h
index 5a2b0183d94b..a78cf6e9dcfa 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h
@@ -463,6 +463,16 @@ struct txgbe_thermal_sensor_data {
#define TXGBE_TDM_RP_RATE_MIN(v) ((0x3FFF & (v)))
#define TXGBE_TDM_RP_RATE_MAX(v) ((0x3FFF & (v)) << 16)
+/* statistic */
+#define TXGBE_TDM_SEC_DRP 0x18304
+#define TXGBE_TDM_PKT_CNT 0x18308
+#define TXGBE_TDM_OS2BMC_CNT 0x18314
+
+/**************************** Receive DMA registers **************************/
+/* statistic */
+#define TXGBE_RDM_DRP_PKT 0x12500
+#define TXGBE_RDM_BMC2OS_CNT 0x12510
+
/***************************** RDB registers *********************************/
/* receive packet buffer */
#define TXGBE_RDB_PB_WRAP 0x19004
@@ -888,6 +898,18 @@ enum {
#define TXGBE_PX_RR_CFG_RR_SZ 0x0000007EU
#define TXGBE_PX_RR_CFG_RR_EN 0x00000001U
+/* statistic */
+#define TXGBE_PX_MPRC(_i) (0x1020 + ((_i) * 64))
+
+#define TXGBE_PX_GPRC 0x12504
+#define TXGBE_PX_GPTC 0x18308
+
+#define TXGBE_PX_GORC_LSB 0x12508
+#define TXGBE_PX_GORC_MSB 0x1250C
+
+#define TXGBE_PX_GOTC_LSB 0x1830C
+#define TXGBE_PX_GOTC_MSB 0x18310
+
/* Part Number String Length */
#define TXGBE_PBANUM_LENGTH 32
@@ -1325,6 +1347,73 @@ struct txgbe_bus_info {
u16 lan_id;
};
+/* Statistics counters collected by the MAC */
+struct txgbe_hw_stats {
+ u64 crcerrs;
+ u64 illerrc;
+ u64 errbc;
+ u64 mspdc;
+ u64 mpctotal;
+ u64 mpc[8];
+ u64 mlfc;
+ u64 mrfc;
+ u64 rlec;
+ u64 lxontxc;
+ u64 lxonrxc;
+ u64 lxofftxc;
+ u64 lxoffrxc;
+ u64 pxontxc[8];
+ u64 pxonrxc[8];
+ u64 pxofftxc[8];
+ u64 pxoffrxc[8];
+ u64 prc64;
+ u64 prc127;
+ u64 prc255;
+ u64 prc511;
+ u64 prc1023;
+ u64 prc1522;
+ u64 gprc;
+ u64 bprc;
+ u64 mprc;
+ u64 gptc;
+ u64 gorc;
+ u64 gotc;
+ u64 rnbc[8];
+ u64 ruc;
+ u64 rfc;
+ u64 roc;
+ u64 rjc;
+ u64 mngprc;
+ u64 mngpdc;
+ u64 mngptc;
+ u64 tor;
+ u64 tpr;
+ u64 tpt;
+ u64 ptc64;
+ u64 ptc127;
+ u64 ptc255;
+ u64 ptc511;
+ u64 ptc1023;
+ u64 ptc1522;
+ u64 mptc;
+ u64 bptc;
+ u64 xec;
+ u64 qprc[16];
+ u64 qptc[16];
+ u64 qbrc[16];
+ u64 qbtc[16];
+ u64 qprdc[16];
+ u64 pxon2offc[8];
+ u64 fccrc;
+ u64 fclast;
+ u64 ldpcec;
+ u64 pcrc8ec;
+ u64 b2ospc;
+ u64 b2ogprc;
+ u64 o2bgptc;
+ u64 o2bspc;
+};
+
/* forward declaration */
struct txgbe_hw;
@@ -1346,6 +1435,7 @@ struct txgbe_mac_operations {
int (*init_hw)(struct txgbe_hw *hw);
int (*reset_hw)(struct txgbe_hw *hw);
void (*start_hw)(struct txgbe_hw *hw);
+ void (*clear_hw_cntrs)(struct txgbe_hw *hw);
void (*get_mac_addr)(struct txgbe_hw *hw, u8 *mac_addr);
void (*get_san_mac_addr)(struct txgbe_hw *hw, u8 *san_mac_addr);
void (*get_wwn_prefix)(struct txgbe_hw *hw, u16 *wwnn_prefix,
--
2.27.0
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