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Commit 22720b71 authored May 04, 2020 by Sneh Shah

net: stmmac: Reset mmc counters on read



Reset mmc counters on read to fix wrong stats in ethtool.

Change-Id: I572be9a3913f96e1feb5a845ee17a17e73be6262
Signed-off-by: Sneh Shah <snehshah@codeaurora.org>

parent a0b558b7

drivers/net/ethernet/stmicro/stmmac/stmmac.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -175,6 +175,8 @@ extern struct stmmac_emb_smmu_cb_ctx stmmac_emb_smmu_ctx;

		#define MICREL_PHY_ID 0x00221620

		#define MMC_CONFIG 0x24

		int ethqos_handle_prv_ioctl(struct net_device dev, struct ifreq rq, int cmd);
		int ethqos_init_pps(struct stmmac_priv *priv);

drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -544,6 +544,9 @@ static void stmmac_get_ethtool_stats(struct net_device *dev,
		u32 tx_queues_count = priv->plat->tx_queues_to_use;
		int i, j = 0;

		/* enable reset on read for mmc counter */
		writel_relaxed(MMC_CONFIG, priv->mmcaddr);

		/* Update the DMA HW counters for dwmac10/100 */
		if (priv->hw->dma->dma_diagnostic_fr)
		priv->hw->dma->dma_diagnostic_fr(&dev->stats,