mediatek/ramips: unify ethernet driver fixes and add performance optimizations

Increase DMA burst size and tx ring size and optimize tx processing

Signed-off-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 0 insertions, 72 deletions

diff --git a/target/linux/ramips/patches-5.4/0400-net-ethernet-mediatek-use-napi_consume_skb.patch b/target/linux/ramips/patches-5.4/0400-net-ethernet-mediatek-use-napi_consume_skb.patch
deleted file mode 100644
index a31100642b..0000000000
--- a/target/linux/ramips/patches-5.4/0400-net-ethernet-mediatek-use-napi_consume_skb.patch
+++ /dev/null
@@ -1,72 +0,0 @@
-From: Felix Fietkau <nbd@nbd.name>
-Date: Mon, 8 Jun 2020 17:01:12 +0200
-Subject: [PATCH] net: ethernet: mediatek: use napi_consume_skb
-
-Should improve performance, since it can use bulk free
-
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
-
---- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-@@ -853,7 +853,8 @@ static int txd_to_idx(struct mtk_tx_ring
- 	return ((void *)dma - (void *)ring->dma) / sizeof(*dma);
- }
- 
--static void mtk_tx_unmap(struct mtk_eth *eth, struct mtk_tx_buf *tx_buf)
-+static void mtk_tx_unmap(struct mtk_eth *eth, struct mtk_tx_buf *tx_buf,
-+			 bool napi)
- {
- 	if (MTK_HAS_CAPS(eth->soc->caps, MTK_QDMA)) {
- 		if (tx_buf->flags & MTK_TX_FLAGS_SINGLE0) {
-@@ -885,8 +886,12 @@ static void mtk_tx_unmap(struct mtk_eth
- 
- 	tx_buf->flags = 0;
- 	if (tx_buf->skb &&
--	    (tx_buf->skb != (struct sk_buff *)MTK_DMA_DUMMY_DESC))
--		dev_kfree_skb_any(tx_buf->skb);
-+	    (tx_buf->skb != (struct sk_buff *)MTK_DMA_DUMMY_DESC)) {
-+		if (napi)
-+			napi_consume_skb(tx_buf->skb, napi);
-+		else
-+			dev_kfree_skb_any(tx_buf->skb);
-+	}
- 	tx_buf->skb = NULL;
- }
- 
-@@ -1064,7 +1069,7 @@ err_dma:
- 		tx_buf = mtk_desc_to_tx_buf(ring, itxd);
- 
- 		/* unmap dma */
--		mtk_tx_unmap(eth, tx_buf);
-+		mtk_tx_unmap(eth, tx_buf, false);
- 
- 		itxd->txd3 = TX_DMA_LS0 | TX_DMA_OWNER_CPU;
- 		if (!MTK_HAS_CAPS(eth->soc->caps, MTK_QDMA))
-@@ -1382,7 +1387,7 @@ static int mtk_poll_tx_qdma(struct mtk_e
- 			done[mac]++;
- 			budget--;
- 		}
--		mtk_tx_unmap(eth, tx_buf);
-+		mtk_tx_unmap(eth, tx_buf, true);
- 
- 		ring->last_free = desc;
- 		atomic_inc(&ring->free_count);
-@@ -1419,7 +1424,7 @@ static int mtk_poll_tx_pdma(struct mtk_e
- 			budget--;
- 		}
- 
--		mtk_tx_unmap(eth, tx_buf);
-+		mtk_tx_unmap(eth, tx_buf, true);
- 
- 		desc = &ring->dma[cpu];
- 		ring->last_free = desc;
-@@ -1621,7 +1626,7 @@ static void mtk_tx_clean(struct mtk_eth
- 
- 	if (ring->buf) {
- 		for (i = 0; i < MTK_DMA_SIZE; i++)
--			mtk_tx_unmap(eth, &ring->buf[i]);
-+			mtk_tx_unmap(eth, &ring->buf[i], false);
- 		kfree(ring->buf);
- 		ring->buf = NULL;
- 	}