From 090b134786a009427442aee7e2ea48e47be5e60f Mon Sep 17 00:00:00 2001 From: John Crispin Date: Wed, 27 Apr 2016 08:58:15 +0000 Subject: mediatek: sync and patches add support for several boards Signed-off-by: John Crispin SVN-Revision: 49263 --- ...ext-mediatek-add-support-for-IRQ-grouping.patch | 106 ++++++++++----------- 1 file changed, 52 insertions(+), 54 deletions(-) (limited to 'target/linux/mediatek/patches-4.4/0088-net-next-mediatek-add-support-for-IRQ-grouping.patch') diff --git a/target/linux/mediatek/patches-4.4/0088-net-next-mediatek-add-support-for-IRQ-grouping.patch b/target/linux/mediatek/patches-4.4/0088-net-next-mediatek-add-support-for-IRQ-grouping.patch index 95fad36..46b9599 100644 --- a/target/linux/mediatek/patches-4.4/0088-net-next-mediatek-add-support-for-IRQ-grouping.patch +++ b/target/linux/mediatek/patches-4.4/0088-net-next-mediatek-add-support-for-IRQ-grouping.patch @@ -1,7 +1,7 @@ -From f43e3aaaacaaf0482f0aaa6fbad03572f3a0c614 Mon Sep 17 00:00:00 2001 +From 781eb70655d4f25af51aafcc010851918d49b2d7 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Wed, 23 Mar 2016 18:31:48 +0100 -Subject: [PATCH 88/91] net-next: mediatek: add support for IRQ grouping +Subject: [PATCH 88/90] net-next: mediatek: add support for IRQ grouping The ethernet core has 3 IRQs. using the IRQ grouping registers we are able to separate TX and RX IRQs, which allows us to service them on separate @@ -11,15 +11,15 @@ Instead we use a tasklet to handle housekeeping. Signed-off-by: John Crispin --- - drivers/net/ethernet/mediatek/mtk_eth_soc.c | 165 ++++++++++++++++++--------- + drivers/net/ethernet/mediatek/mtk_eth_soc.c | 164 ++++++++++++++++++--------- drivers/net/ethernet/mediatek/mtk_eth_soc.h | 16 ++- - 2 files changed, 125 insertions(+), 56 deletions(-) + 2 files changed, 124 insertions(+), 56 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c -index f821820..b5e364c 100644 +index f86d551..6557026 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c -@@ -789,7 +789,7 @@ drop: +@@ -790,7 +790,7 @@ drop: } static int mtk_poll_rx(struct napi_struct *napi, int budget, @@ -28,7 +28,7 @@ index f821820..b5e364c 100644 { struct mtk_rx_ring *ring = ð->rx_ring; int idx = ring->calc_idx; -@@ -877,19 +877,18 @@ release_desc: +@@ -878,19 +878,18 @@ release_desc: } if (done < budget) @@ -51,11 +51,9 @@ index f821820..b5e364c 100644 u32 cpu, dma; static int condition; int i; -@@ -941,64 +940,82 @@ static int mtk_poll_tx(struct mtk_eth *eth, int budget, bool *tx_again) - continue; - netdev_completed_queue(eth->netdev[i], done, bytes); +@@ -944,63 +943,80 @@ static int mtk_poll_tx(struct mtk_eth *eth, int budget, bool *tx_again) } -+ + /* read hw index again make sure no new tx packet */ - if (cpu != dma || cpu != mtk_r32(eth, MTK_QTX_DRX_PTR)) - *tx_again = true; @@ -103,7 +101,7 @@ index f821820..b5e364c 100644 mtk_w32(eth, status_intr, MTK_INT_STATUS2); } +} -+ + +static int mtk_napi_tx(struct napi_struct *napi, int budget) +{ + struct mtk_eth *eth = container_of(napi, struct mtk_eth, tx_napi); @@ -114,21 +112,27 @@ index f821820..b5e364c 100644 + + status = mtk_r32(eth, MTK_QMTK_INT_STATUS); + tx_done = mtk_poll_tx(eth, budget); -+ if (unlikely(netif_msg_intr(eth))) { -+ mask = mtk_r32(eth, MTK_QDMA_INT_MASK); + if (unlikely(netif_msg_intr(eth))) { + mask = mtk_r32(eth, MTK_QDMA_INT_MASK); +- netdev_info(eth->netdev[0], +- "done tx %d, rx %d, intr 0x%08x/0x%x\n", +- tx_done, rx_done, status, mask); + dev_info(eth->dev, + "done tx %d, intr 0x%08x/0x%x\n", + tx_done, status, mask); -+ } -+ + } + +- if (tx_again || rx_done == budget) + if (tx_done == budget) -+ return budget; -+ -+ status = mtk_r32(eth, MTK_QMTK_INT_STATUS); + return budget; + + status = mtk_r32(eth, MTK_QMTK_INT_STATUS); +- if (status & (tx_intr | rx_intr)) + if (status & MTK_TX_DONE_INT) -+ return budget; -+ -+ napi_complete(napi); + return budget; + + napi_complete(napi); +- mtk_irq_enable(eth, tx_intr | rx_intr); + mtk_irq_enable(eth, MTK_TX_DONE_INT); + + return tx_done; @@ -139,35 +143,29 @@ index f821820..b5e364c 100644 + struct mtk_eth *eth = container_of(napi, struct mtk_eth, rx_napi); + u32 status, mask; + int rx_done = 0; - ++ + status = mtk_r32(eth, MTK_QMTK_INT_STATUS); + rx_done = mtk_poll_rx(napi, budget, eth); - if (unlikely(netif_msg_intr(eth))) { - mask = mtk_r32(eth, MTK_QDMA_INT_MASK); -- netdev_info(eth->netdev[0], -- "done tx %d, rx %d, intr 0x%08x/0x%x\n", -- tx_done, rx_done, status, mask); ++ if (unlikely(netif_msg_intr(eth))) { ++ mask = mtk_r32(eth, MTK_QDMA_INT_MASK); + dev_info(eth->dev, + "done rx %d, intr 0x%08x/0x%x\n", + rx_done, status, mask); - } - -- if (tx_again || rx_done == budget) ++ } ++ + if (rx_done == budget) - return budget; - - status = mtk_r32(eth, MTK_QMTK_INT_STATUS); -- if (status & (tx_intr | rx_intr)) ++ return budget; ++ ++ status = mtk_r32(eth, MTK_QMTK_INT_STATUS); + if (status & MTK_RX_DONE_INT) - return budget; - - napi_complete(napi); -- mtk_irq_enable(eth, tx_intr | rx_intr); ++ return budget; ++ ++ napi_complete(napi); + mtk_irq_enable(eth, MTK_RX_DONE_INT); return rx_done; } -@@ -1235,22 +1252,44 @@ static void mtk_tx_timeout(struct net_device *dev) +@@ -1237,22 +1253,44 @@ static void mtk_tx_timeout(struct net_device *dev) schedule_work(ð->pending_work); } @@ -190,8 +188,7 @@ index f821820..b5e364c 100644 - } else { - mtk_w32(eth, status, MTK_QMTK_INT_STATUS); + mtk_irq_disable(eth, MTK_RX_DONE_INT); - } -- mtk_irq_disable(eth, (MTK_RX_DONE_INT | MTK_TX_DONE_INT)); ++ } + mtk_w32(eth, status, MTK_QMTK_INT_STATUS); + + return IRQ_HANDLED; @@ -212,12 +209,13 @@ index f821820..b5e364c 100644 + if (likely(napi_schedule_prep(ð->tx_napi))) + __napi_schedule(ð->tx_napi); + mtk_irq_disable(eth, MTK_TX_DONE_INT); -+ } + } +- mtk_irq_disable(eth, (MTK_RX_DONE_INT | MTK_TX_DONE_INT)); + mtk_w32(eth, status, MTK_QMTK_INT_STATUS); return IRQ_HANDLED; } -@@ -1263,7 +1302,7 @@ static void mtk_poll_controller(struct net_device *dev) +@@ -1265,7 +1303,7 @@ static void mtk_poll_controller(struct net_device *dev) u32 int_mask = MTK_TX_DONE_INT | MTK_RX_DONE_INT; mtk_irq_disable(eth, int_mask); @@ -226,7 +224,7 @@ index f821820..b5e364c 100644 mtk_irq_enable(eth, int_mask); } #endif -@@ -1299,6 +1338,7 @@ static int mtk_open(struct net_device *dev) +@@ -1301,6 +1339,7 @@ static int mtk_open(struct net_device *dev) if (err) return err; @@ -234,7 +232,7 @@ index f821820..b5e364c 100644 napi_enable(ð->rx_napi); mtk_irq_enable(eth, MTK_TX_DONE_INT | MTK_RX_DONE_INT); } -@@ -1347,6 +1387,7 @@ static int mtk_stop(struct net_device *dev) +@@ -1349,6 +1388,7 @@ static int mtk_stop(struct net_device *dev) return 0; mtk_irq_disable(eth, MTK_TX_DONE_INT | MTK_RX_DONE_INT); @@ -242,7 +240,7 @@ index f821820..b5e364c 100644 napi_disable(ð->rx_napi); mtk_stop_dma(eth, MTK_QDMA_GLO_CFG); -@@ -1384,7 +1425,11 @@ static int __init mtk_hw_init(struct mtk_eth *eth) +@@ -1386,7 +1426,11 @@ static int __init mtk_hw_init(struct mtk_eth *eth) /* Enable RX VLan Offloading */ mtk_w32(eth, 1, MTK_CDMP_EG_CTRL); @@ -255,7 +253,7 @@ index f821820..b5e364c 100644 dev_name(eth->dev), eth); if (err) return err; -@@ -1400,7 +1445,11 @@ static int __init mtk_hw_init(struct mtk_eth *eth) +@@ -1402,7 +1446,11 @@ static int __init mtk_hw_init(struct mtk_eth *eth) mtk_w32(eth, 0, MTK_RST_GL); /* FE int grouping */ @@ -268,7 +266,7 @@ index f821820..b5e364c 100644 for (i = 0; i < 2; i++) { u32 val = mtk_r32(eth, MTK_GDMA_FWD_CFG(i)); -@@ -1448,7 +1497,9 @@ static void mtk_uninit(struct net_device *dev) +@@ -1450,7 +1498,9 @@ static void mtk_uninit(struct net_device *dev) phy_disconnect(mac->phy_dev); mtk_mdio_cleanup(eth); mtk_irq_disable(eth, ~0); @@ -279,7 +277,7 @@ index f821820..b5e364c 100644 } static int mtk_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) -@@ -1723,10 +1774,10 @@ static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np) +@@ -1725,10 +1775,10 @@ static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np) dev_err(eth->dev, "error bringing up device\n"); goto free_netdev; } @@ -292,7 +290,7 @@ index f821820..b5e364c 100644 return 0; -@@ -1743,6 +1794,7 @@ static int mtk_probe(struct platform_device *pdev) +@@ -1745,6 +1795,7 @@ static int mtk_probe(struct platform_device *pdev) struct mtk_soc_data *soc; struct mtk_eth *eth; int err; @@ -300,7 +298,7 @@ index f821820..b5e364c 100644 match = of_match_device(of_mtk_match, &pdev->dev); soc = (struct mtk_soc_data *)match->data; -@@ -1778,10 +1830,12 @@ static int mtk_probe(struct platform_device *pdev) +@@ -1780,10 +1831,12 @@ static int mtk_probe(struct platform_device *pdev) return PTR_ERR(eth->rstc); } @@ -317,7 +315,7 @@ index f821820..b5e364c 100644 } eth->clk_ethif = devm_clk_get(&pdev->dev, "ethif"); -@@ -1822,7 +1876,9 @@ static int mtk_probe(struct platform_device *pdev) +@@ -1824,7 +1877,9 @@ static int mtk_probe(struct platform_device *pdev) * for NAPI to work */ init_dummy_netdev(ð->dummy_dev); @@ -328,7 +326,7 @@ index f821820..b5e364c 100644 MTK_NAPI_WEIGHT); platform_set_drvdata(pdev, eth); -@@ -1843,6 +1899,7 @@ static int mtk_remove(struct platform_device *pdev) +@@ -1845,6 +1900,7 @@ static int mtk_remove(struct platform_device *pdev) clk_disable_unprepare(eth->clk_gp1); clk_disable_unprepare(eth->clk_gp2); -- cgit v1.1