diff options
| author | Voon Weifeng <weifeng.voon@intel.com> | 2021-08-16 14:15:58 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-08-16 11:36:04 +0100 |
| commit | 1975df880b959e30f28d66148a12d77b458abd76 (patch) | |
| tree | dd9246fd949beabaa4c2bf564f3bf0a82a78fc58 /drivers/net/ethernet/stmicro | |
| parent | 022522aca43037ace6d58e76c198ecf0ed425c9f (diff) | |
net: stmmac: fix INTR TBU status affecting irq count statistic
DMA channel status "Transmit buffer unavailable(TBU)" bit is not
considered as a successful dma tx. Hence, it should not affect
all the irq count statistic.
Fixes: 1103d3a5531c ("net: stmmac: dwmac4: Also use TBU interrupt to clean TX path")
Signed-off-by: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: Vijayakannan Ayyathurai <vijayakannan.ayyathurai@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c index e63270267578..f83db62938dd 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c @@ -172,11 +172,12 @@ int dwmac4_dma_interrupt(void __iomem *ioaddr, x->rx_normal_irq_n++; ret |= handle_rx; } - if (likely(intr_status & (DMA_CHAN_STATUS_TI | - DMA_CHAN_STATUS_TBU))) { + if (likely(intr_status & DMA_CHAN_STATUS_TI)) { x->tx_normal_irq_n++; ret |= handle_tx; } + if (unlikely(intr_status & DMA_CHAN_STATUS_TBU)) + ret |= handle_tx; if (unlikely(intr_status & DMA_CHAN_STATUS_ERI)) x->rx_early_irq++; |