net: stmmac: xgmac: fix handling of DPP safety error for DMA channels

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[ Upstream commit 46eba193d0 ]

Commit 56e58d6c8a ("net: stmmac: Implement Safety Features in
XGMAC core") checks and reports safety errors, but leaves the
Data Path Parity Errors for each channel in DMA unhandled at all, lead to
a storm of interrupt.
Fix it by checking and clearing the DMA_DPP_Interrupt_Status register.

Fixes: 56e58d6c8a ("net: stmmac: Implement Safety Features in XGMAC core")
Signed-off-by: Furong Xu <0x1207@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Furong Xu 2024-01-31 10:08:28 +08:00 • committed by Greg Kroah-Hartman

parent fb8bfc6ea3

commit e42ff0844f

3 changed files with 60 additions and 1 deletions

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1

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

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3

drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h

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57

drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c

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