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Commit 72c9ac4e authored by Lendacky, Thomas's avatar Lendacky, Thomas Committed by David S. Miller
Browse files

amd-xgbe: Add receive buffer unavailable statistic 



Add a statistic that tracks how many times an interrupt is generated for
a receive buffer not being available to the hardware which prevents the
hardware from being able to DMA the received data.

Signed-off-by: default avatarTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9c439e4b

drivers/net/ethernet/amd/xgbe/xgbe-drv.c

+3 −0
Original line number Diff line number Diff line
@@ -360,6 +360,9 @@ static irqreturn_t xgbe_isr(int irq, void *data) 
			}

		}



		if (XGMAC_GET_BITS(dma_ch_isr, DMA_CH_SR, RBU))

			pdata->ext_stats.rx_buffer_unavailable++;



		/* Restart the device on a Fatal Bus Error */

		if (XGMAC_GET_BITS(dma_ch_isr, DMA_CH_SR, FBE))

			schedule_work(&pdata->restart_work);

drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c

+1 −0
Original line number Diff line number Diff line
@@ -179,6 +179,7 @@ static const struct xgbe_stats xgbe_gstring_stats[] = { 
	XGMAC_MMC_STAT("rx_watchdog_errors", rxwatchdogerror),

	XGMAC_MMC_STAT("rx_pause_frames", rxpauseframes),

	XGMAC_EXT_STAT("rx_split_header_packets", rx_split_header_packets),

	XGMAC_EXT_STAT("rx_buffer_unavailable", rx_buffer_unavailable),

};



#define XGBE_STATS_COUNT	ARRAY_SIZE(xgbe_gstring_stats)

drivers/net/ethernet/amd/xgbe/xgbe.h

+1 −0
Original line number Diff line number Diff line
@@ -582,6 +582,7 @@ struct xgbe_mmc_stats { 
struct xgbe_ext_stats {

	u64 tx_tso_packets;

	u64 rx_split_header_packets;

	u64 rx_buffer_unavailable;

};



struct xgbe_hw_if {