net: airoha: Move entries to queue head in case of DMA mapping failure in airoha_dev_xmit()

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In order to respect the original descriptor order and avoid any
potential IOMMU fault or memory corruption, move pending queue entries
to the head of hw queue tx_list if the DMA mapping of current inflight
packet fails in airoha_dev_xmit routine.

Fixes: 3f47e67dff ("net: airoha: Add the capability to consume out-of-order DMA tx descriptors")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20260429-airoha-xmit-unmap-error-path-v2-1-32e43b7c6d25@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Lorenzo Bianconi 2026-04-29 14:02:31 +02:00 • committed by Jakub Kicinski

parent 7a33345153

commit 75df490c9e

1 changed files with 2 additions and 4 deletions

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6

drivers/net/ethernet/airoha/airoha_eth.c

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