diff options
Diffstat (limited to 'target/linux/mediatek/patches-4.9/0037-net-next-mediatek-bring-up-QDMA-RX-ring-0.patch')
| -rw-r--r-- | target/linux/mediatek/patches-4.9/0037-net-next-mediatek-bring-up-QDMA-RX-ring-0.patch | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/target/linux/mediatek/patches-4.9/0037-net-next-mediatek-bring-up-QDMA-RX-ring-0.patch b/target/linux/mediatek/patches-4.9/0037-net-next-mediatek-bring-up-QDMA-RX-ring-0.patch deleted file mode 100644 index 9d6a089..0000000 --- a/target/linux/mediatek/patches-4.9/0037-net-next-mediatek-bring-up-QDMA-RX-ring-0.patch +++ /dev/null @@ -1,128 +0,0 @@ -From 047a4e7b17322c1b32d8db32a0df9899cb4963a3 Mon Sep 17 00:00:00 2001 -From: John Crispin <john@phrozen.org> -Date: Fri, 21 Jul 2017 08:48:38 +0200 -Subject: [PATCH 37/57] net-next: mediatek: bring up QDMA RX ring 0 - -This patch is in peparation for adding HW flow and QoS offloading. For -those features to work, the driver needs to bring up the first QDMA RX -ring. This ring is used by the PPE offloading HW. - -Signed-off-by: John Crispin <john@phrozen.org> ---- - drivers/net/ethernet/mediatek/mtk_eth_soc.c | 38 ++++++++++++++++++++--------- - drivers/net/ethernet/mediatek/mtk_eth_soc.h | 3 +++ - 2 files changed, 30 insertions(+), 11 deletions(-) - ---- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c -+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c -@@ -1224,11 +1224,21 @@ static void mtk_tx_clean(struct mtk_eth - - static int mtk_rx_alloc(struct mtk_eth *eth, int ring_no, int rx_flag) - { -- struct mtk_rx_ring *ring = ð->rx_ring[ring_no]; -+ struct mtk_rx_ring *ring; - int rx_data_len, rx_dma_size; - int i; -+ u32 offset = 0; - -- if (rx_flag == MTK_RX_FLAGS_HWLRO) { -+ if (rx_flag & MTK_RX_FLAGS_QDMA) { -+ if (ring_no) -+ return -EINVAL; -+ ring = ð->rx_ring_qdma; -+ offset = 0x1000; -+ } else { -+ ring = ð->rx_ring[ring_no]; -+ } -+ -+ if (rx_flag & MTK_RX_FLAGS_HWLRO) { - rx_data_len = MTK_MAX_LRO_RX_LENGTH; - rx_dma_size = MTK_HW_LRO_DMA_SIZE; - } else { -@@ -1276,17 +1286,16 @@ static int mtk_rx_alloc(struct mtk_eth * - */ - wmb(); - -- mtk_w32(eth, ring->phys, MTK_PRX_BASE_PTR_CFG(ring_no)); -- mtk_w32(eth, rx_dma_size, MTK_PRX_MAX_CNT_CFG(ring_no)); -- mtk_w32(eth, ring->calc_idx, ring->crx_idx_reg); -- mtk_w32(eth, MTK_PST_DRX_IDX_CFG(ring_no), MTK_PDMA_RST_IDX); -+ mtk_w32(eth, ring->phys, MTK_PRX_BASE_PTR_CFG(ring_no) + offset); -+ mtk_w32(eth, rx_dma_size, MTK_PRX_MAX_CNT_CFG(ring_no) + offset); -+ mtk_w32(eth, ring->calc_idx, ring->crx_idx_reg + offset); -+ mtk_w32(eth, MTK_PST_DRX_IDX_CFG(ring_no), MTK_PDMA_RST_IDX + offset); - - return 0; - } - --static void mtk_rx_clean(struct mtk_eth *eth, int ring_no) -+static void mtk_rx_clean(struct mtk_eth *eth, struct mtk_rx_ring *ring) - { -- struct mtk_rx_ring *ring = ð->rx_ring[ring_no]; - int i; - - if (ring->data && ring->dma) { -@@ -1612,6 +1621,10 @@ static int mtk_dma_init(struct mtk_eth * - if (err) - return err; - -+ err = mtk_rx_alloc(eth, 0, MTK_RX_FLAGS_QDMA); -+ if (err) -+ return err; -+ - err = mtk_rx_alloc(eth, 0, MTK_RX_FLAGS_NORMAL); - if (err) - return err; -@@ -1651,12 +1664,13 @@ static void mtk_dma_free(struct mtk_eth - eth->phy_scratch_ring = 0; - } - mtk_tx_clean(eth); -- mtk_rx_clean(eth, 0); -+ mtk_rx_clean(eth, ð->rx_ring[0]); -+ mtk_rx_clean(eth, ð->rx_ring_qdma); - - if (eth->hwlro) { - mtk_hwlro_rx_uninit(eth); - for (i = 1; i < MTK_MAX_RX_RING_NUM; i++) -- mtk_rx_clean(eth, i); -+ mtk_rx_clean(eth, ð->rx_ring[i]); - } - - kfree(eth->scratch_head); -@@ -1723,7 +1737,9 @@ static int mtk_start_dma(struct mtk_eth - - mtk_w32(eth, - MTK_TX_WB_DDONE | MTK_TX_DMA_EN | -- MTK_DMA_SIZE_16DWORDS | MTK_NDP_CO_PRO, -+ MTK_DMA_SIZE_16DWORDS | MTK_NDP_CO_PRO | -+ MTK_RX_DMA_EN | MTK_RX_2B_OFFSET | -+ MTK_RX_BT_32DWORDS, - MTK_QDMA_GLO_CFG); - - mtk_w32(eth, ---- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h -+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h -@@ -484,6 +484,7 @@ struct mtk_tx_ring { - enum mtk_rx_flags { - MTK_RX_FLAGS_NORMAL = 0, - MTK_RX_FLAGS_HWLRO, -+ MTK_RX_FLAGS_QDMA, - }; - - /* struct mtk_rx_ring - This struct holds info describing a RX ring -@@ -527,6 +528,7 @@ struct mtk_rx_ring { - * @dma_refcnt: track how many netdevs are using the DMA engine - * @tx_ring: Pointer to the memory holding info about the TX ring - * @rx_ring: Pointer to the memory holding info about the RX ring -+ * @rx_ring_qdma: Pointer to the memory holding info about the QDMA RX ring - * @tx_napi: The TX NAPI struct - * @rx_napi: The RX NAPI struct - * @scratch_ring: Newer SoCs need memory for a second HW managed TX ring -@@ -556,6 +558,7 @@ struct mtk_eth { - atomic_t dma_refcnt; - struct mtk_tx_ring tx_ring; - struct mtk_rx_ring rx_ring[MTK_MAX_RX_RING_NUM]; -+ struct mtk_rx_ring rx_ring_qdma; - struct napi_struct tx_napi; - struct napi_struct rx_napi; - struct mtk_tx_dma *scratch_ring; |