[PATCH net-next v1 3/3] net: stmmac: add ethtool per-queue irq statistic support
From: Vijayakannan Ayyathurai <hidden>
Date: 2021-08-16 06:19:44
Also in:
lkml, netdev
Subsystem:
networking drivers, stmmac ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Maxime Chevallier, Linus Torvalds
Adding ethtool per-queue statistics support to show number of interrupts generated at DMA tx and DMA rx. All the counters are incremented at dwmac4_dma_interrupt function. Signed-off-by: Vijayakannan Ayyathurai <redacted> --- drivers/net/ethernet/stmicro/stmmac/common.h | 2 ++ drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c | 2 ++ drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c | 2 ++ 3 files changed, 6 insertions(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 79333deef2e2..b6d945ea903d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h@@ -60,10 +60,12 @@ struct stmmac_txq_stats { unsigned long tx_pkt_n; + unsigned long tx_normal_irq_n; }; struct stmmac_rxq_stats { unsigned long rx_pkt_n; + unsigned long rx_normal_irq_n; }; /* Extra statistic and debug information exposed by ethtool */
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
index f83db62938dd..9292a1fab7d3 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c@@ -170,10 +170,12 @@ int dwmac4_dma_interrupt(void __iomem *ioaddr, x->normal_irq_n++; if (likely(intr_status & DMA_CHAN_STATUS_RI)) { x->rx_normal_irq_n++; + x->rxq_stats[chan].rx_normal_irq_n++; ret |= handle_rx; } if (likely(intr_status & DMA_CHAN_STATUS_TI)) { x->tx_normal_irq_n++; + x->txq_stats[chan].tx_normal_irq_n++; ret |= handle_tx; } if (unlikely(intr_status & DMA_CHAN_STATUS_TBU))
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
index 10c0895d0b43..595c3ccdcbb7 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c@@ -263,11 +263,13 @@ static const struct stmmac_stats stmmac_mmc[] = { static const char stmmac_qstats_tx_string[][ETH_GSTRING_LEN] = { "tx_pkt_n", + "tx_irq_n", #define STMMAC_TXQ_STATS ARRAY_SIZE(stmmac_qstats_tx_string) }; static const char stmmac_qstats_rx_string[][ETH_GSTRING_LEN] = { "rx_pkt_n", + "rx_irq_n", #define STMMAC_RXQ_STATS ARRAY_SIZE(stmmac_qstats_rx_string) };
--
2.17.1
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