mirror of
https://github.com/openwrt/openwrt.git
synced 2026-06-17 14:50:15 +04:00
Christian Marangi
49d7ee7d5b
Backport upstream memory leak patch merged upstream and even more
preliminary patch for multi-serdes rewrk.
(cherry picked from commit 155c610962)
Link: https://github.com/openwrt/openwrt/pull/23046
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
35 lines
1.4 KiB
Diff
35 lines
1.4 KiB
Diff
From 656121b155030086b01cfce9bd31b0c925ee6860 Mon Sep 17 00:00:00 2001
|
|
From: Lorenzo Bianconi <lorenzo@kernel.org>
|
|
Date: Wed, 8 Apr 2026 20:26:56 +0200
|
|
Subject: [PATCH] net: airoha: Add missing RX_CPU_IDX() configuration in
|
|
airoha_qdma_cleanup_rx_queue()
|
|
|
|
When the descriptor index written in REG_RX_CPU_IDX() is equal to the one
|
|
stored in REG_RX_DMA_IDX(), the hw will stop since the QDMA RX ring is
|
|
empty.
|
|
Add missing REG_RX_CPU_IDX() configuration in airoha_qdma_cleanup_rx_queue
|
|
routine during QDMA RX ring cleanup.
|
|
|
|
Fixes: 514aac359987 ("net: airoha: Add missing cleanup bits in airoha_qdma_cleanup_rx_queue()")
|
|
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
|
|
Link: https://patch.msgid.link/20260408-airoha-cpu-idx-airoha_qdma_cleanup_rx_queue-v1-1-8efa64844308@kernel.org
|
|
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
---
|
|
drivers/net/ethernet/airoha/airoha_eth.c | 5 +++++
|
|
1 file changed, 5 insertions(+)
|
|
|
|
--- a/drivers/net/ethernet/airoha/airoha_eth.c
|
|
+++ b/drivers/net/ethernet/airoha/airoha_eth.c
|
|
@@ -824,6 +824,11 @@ static void airoha_qdma_cleanup_rx_queue
|
|
}
|
|
|
|
q->head = q->tail;
|
|
+ /* Set RX_DMA_IDX to RX_CPU_IDX to notify the hw the QDMA RX ring is
|
|
+ * empty.
|
|
+ */
|
|
+ airoha_qdma_rmw(qdma, REG_RX_CPU_IDX(qid), RX_RING_CPU_IDX_MASK,
|
|
+ FIELD_PREP(RX_RING_CPU_IDX_MASK, q->head));
|
|
airoha_qdma_rmw(qdma, REG_RX_DMA_IDX(qid), RX_RING_DMA_IDX_MASK,
|
|
FIELD_PREP(RX_RING_DMA_IDX_MASK, q->tail));
|
|
}
|