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author | Josh Boyer <jwboyer@fedoraproject.org> | 2014-08-14 10:11:49 -0400 |
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committer | Josh Boyer <jwboyer@fedoraproject.org> | 2014-08-14 10:11:49 -0400 |
commit | c2ffd34e66211a78e042f68978d30612dbf984e8 (patch) | |
tree | 6e37523c59eaaa4bfb68bf43a96dc0d4a4d45961 | |
parent | 76658d2649bbaaba26af07e94d1cd545f2aad0d4 (diff) | |
download | kernel-c2ffd34e66211a78e042f68978d30612dbf984e8.tar.gz kernel-c2ffd34e66211a78e042f68978d30612dbf984e8.tar.xz kernel-c2ffd34e66211a78e042f68978d30612dbf984e8.zip |
Linux v3.16-10959-gf0094b28f303
-rw-r--r-- | config-generic | 1 | ||||
-rw-r--r-- | kernel-arm64.patch | 2568 | ||||
-rw-r--r-- | kernel.spec | 7 | ||||
-rw-r--r-- | sources | 2 |
4 files changed, 7 insertions, 2571 deletions
diff --git a/config-generic b/config-generic index c61823b8c..de9e8b2c6 100644 --- a/config-generic +++ b/config-generic @@ -4878,6 +4878,7 @@ CONFIG_DW_DMAC_PCI=m # CONFIG_TIMB_DMA is not set # CONFIG_DMATEST is not set # CONFIG_FSL_EDMA is not set +# CONFIG_NBPFAXI_DMA is not set CONFIG_ASYNC_TX_DMA=y CONFIG_UNUSED_SYMBOLS=y diff --git a/kernel-arm64.patch b/kernel-arm64.patch index 0a8b9ea91..919afeb05 100644 --- a/kernel-arm64.patch +++ b/kernel-arm64.patch @@ -1,4 +1,3 @@ - .../devicetree/bindings/net/apm-xgene-enet.txt | 72 ++ .../devicetree/bindings/pci/xgene-pci.txt | 52 ++ MAINTAINERS | 15 + arch/arm64/Kconfig | 19 +- @@ -18,17 +17,6 @@ arch/arm64/kernel/smp_spin_table.c | 21 +- drivers/ata/ahci_xgene.c | 3 +- drivers/irqchip/irq-gic.c | 32 +- - drivers/net/ethernet/Kconfig | 1 + - drivers/net/ethernet/Makefile | 1 + - drivers/net/ethernet/apm/Kconfig | 1 + - drivers/net/ethernet/apm/Makefile | 5 + - drivers/net/ethernet/apm/xgene/Kconfig | 9 + - drivers/net/ethernet/apm/xgene/Makefile | 6 + - .../net/ethernet/apm/xgene/xgene_enet_ethtool.c | 125 +++ - drivers/net/ethernet/apm/xgene/xgene_enet_hw.c | 747 ++++++++++++++++ - drivers/net/ethernet/apm/xgene/xgene_enet_hw.h | 375 ++++++++ - drivers/net/ethernet/apm/xgene/xgene_enet_main.c | 962 +++++++++++++++++++++ - drivers/net/ethernet/apm/xgene/xgene_enet_main.h | 107 +++ drivers/of/address.c | 108 +++ drivers/of/of_pci.c | 136 +++ drivers/pci/host-bridge.c | 18 +- @@ -44,84 +32,6 @@ tools/perf/arch/arm64/include/perf_regs.h | 2 + 44 files changed, 3992 insertions(+), 73 deletions(-) -diff --git a/Documentation/devicetree/bindings/net/apm-xgene-enet.txt b/Documentation/devicetree/bindings/net/apm-xgene-enet.txt -new file mode 100644 -index 0000000..3e2a295 ---- /dev/null -+++ b/Documentation/devicetree/bindings/net/apm-xgene-enet.txt -@@ -0,0 +1,72 @@ -+APM X-Gene SoC Ethernet nodes -+ -+Ethernet nodes are defined to describe on-chip ethernet interfaces in -+APM X-Gene SoC. -+ -+Required properties: -+- compatible: Should be "apm,xgene-enet" -+- reg: Address and length of the register set for the device. It contains the -+ information of registers in the same order as described by reg-names -+- reg-names: Should contain the register set names -+ "enet_csr": Ethernet control and status register address space -+ "ring_csr": Descriptor ring control and status register address space -+ "ring_cmd": Descriptor ring command register address space -+- interrupts: Ethernet main interrupt -+- clocks: Reference to the clock entry. -+- local-mac-address: MAC address assigned to this device -+- phy-connection-type: Interface type between ethernet device and PHY device -+- phy-handle: Reference to a PHY node connected to this device -+ -+- mdio: Device tree subnode with the following required -+ properties: -+ -+ - compatible: Must be "apm,xgene-mdio". -+ - #address-cells: Must be <1>. -+ - #size-cells: Must be <0>. -+ -+ For the phy on the mdio bus, there must be a node with the following -+ fields: -+ -+ - compatible: PHY identifier. Please refer ./phy.txt for the format. -+ - reg: The ID number for the phy. -+ -+Optional properties: -+- status : Should be "ok" or "disabled" for enabled/disabled. -+ Default is "ok". -+ -+ -+Example: -+ menetclk: menetclk { -+ compatible = "apm,xgene-device-clock"; -+ clock-output-names = "menetclk"; -+ status = "ok"; -+ }; -+ -+ menet: ethernet@17020000 { -+ compatible = "apm,xgene-enet"; -+ status = "disabled"; -+ reg = <0x0 0x17020000 0x0 0xd100>, -+ <0x0 0X17030000 0x0 0X400>, -+ <0x0 0X10000000 0x0 0X200>; -+ reg-names = "enet_csr", "ring_csr", "ring_cmd"; -+ interrupts = <0x0 0x3c 0x4>; -+ clocks = <&menetclk 0>; -+ local-mac-address = [00 01 73 00 00 01]; -+ phy-connection-type = "rgmii"; -+ phy-handle = <&menetphy>; -+ mdio { -+ compatible = "apm,xgene-mdio"; -+ #address-cells = <1>; -+ #size-cells = <0>; -+ menetphy: menetphy@3 { -+ compatible = "ethernet-phy-id001c.c915"; -+ reg = <0x3>; -+ }; -+ -+ }; -+ }; -+ -+/* Board-specific peripheral configurations */ -+&menet { -+ status = "ok"; -+}; diff --git a/Documentation/devicetree/bindings/pci/xgene-pci.txt b/Documentation/devicetree/bindings/pci/xgene-pci.txt new file mode 100644 index 0000000..e19fdb8 @@ -184,21 +94,6 @@ diff --git a/MAINTAINERS b/MAINTAINERS index 7e2eb4c..7bf051dd 100644 --- a/MAINTAINERS +++ b/MAINTAINERS -@@ -719,6 +719,14 @@ S: Maintained - F: drivers/net/appletalk/ - F: net/appletalk/ - -+APPLIED MICRO (APM) X-GENE SOC ETHERNET DRIVER -+M: Iyappan Subramanian <isubramanian@apm.com> -+M: Keyur Chudgar <kchudgar@apm.com> -+M: Ravi Patel <rapatel@apm.com> -+S: Supported -+F: drivers/net/ethernet/apm/xgene/ -+F: Documentation/devicetree/bindings/net/apm-xgene-enet.txt -+ - APTINA CAMERA SENSOR PLL - M: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> - L: linux-media@vger.kernel.org @@ -6880,6 +6888,13 @@ S: Maintained F: Documentation/devicetree/bindings/pci/host-generic-pci.txt F: drivers/pci/host/pci-host-generic.c @@ -351,23 +246,6 @@ index 40aa96c..fb2ee54 100644 soc { compatible = "simple-bus"; #address-cells = <2>; -@@ -167,14 +172,13 @@ - clock-output-names = "ethclk"; - }; - -- eth8clk: eth8clk { -+ menetclk: menetclk { - compatible = "apm,xgene-device-clock"; - #clock-cells = <1>; - clocks = <ðclk 0>; -- clock-names = "eth8clk"; - reg = <0x0 0x1702C000 0x0 0x1000>; - reg-names = "csr-reg"; -- clock-output-names = "eth8clk"; -+ clock-output-names = "menetclk"; - }; - - sataphy1clk: sataphy1clk@1f21c000 { @@ -270,6 +274,161 @@ enable-mask = <0x2>; clock-output-names = "rtcclk"; @@ -539,37 +417,6 @@ index 40aa96c..fb2ee54 100644 interrupt-parent = <&gic>; interrupts = <0x0 0x4c 0x4>; }; -@@ -397,5 +556,30 @@ - #clock-cells = <1>; - clocks = <&rtcclk 0>; - }; -+ -+ menet: ethernet@17020000 { -+ compatible = "apm,xgene-enet"; -+ status = "disabled"; -+ reg = <0x0 0x17020000 0x0 0xd100>, -+ <0x0 0X17030000 0x0 0X400>, -+ <0x0 0X10000000 0x0 0X200>; -+ reg-names = "enet_csr", "ring_csr", "ring_cmd"; -+ interrupts = <0x0 0x3c 0x4>; -+ dma-coherent; -+ clocks = <&menetclk 0>; -+ local-mac-address = [00 00 00 00 00 00]; -+ phy-connection-type = "rgmii"; -+ phy-handle = <&menetphy>; -+ mdio { -+ compatible = "apm,xgene-mdio"; -+ #address-cells = <1>; -+ #size-cells = <0>; -+ menetphy: menetphy@3 { -+ compatible = "ethernet-phy-id001c.c915"; -+ reg = <0x3>; -+ }; -+ -+ }; -+ }; - }; - }; diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild index 0b3fcf8..07cb417 100644 --- a/arch/arm64/include/asm/Kbuild @@ -988,2421 +835,6 @@ index 4b959e6..c36c7ab55 100644 } static int gic_notifier(struct notifier_block *self, unsigned long cmd, void *v) -diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig -index edb7186..dc7406c 100644 ---- a/drivers/net/ethernet/Kconfig -+++ b/drivers/net/ethernet/Kconfig -@@ -24,6 +24,7 @@ source "drivers/net/ethernet/allwinner/Kconfig" - source "drivers/net/ethernet/alteon/Kconfig" - source "drivers/net/ethernet/altera/Kconfig" - source "drivers/net/ethernet/amd/Kconfig" -+source "drivers/net/ethernet/apm/Kconfig" - source "drivers/net/ethernet/apple/Kconfig" - source "drivers/net/ethernet/arc/Kconfig" - source "drivers/net/ethernet/atheros/Kconfig" -diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile -index 58de333..224a018 100644 ---- a/drivers/net/ethernet/Makefile -+++ b/drivers/net/ethernet/Makefile -@@ -10,6 +10,7 @@ obj-$(CONFIG_NET_VENDOR_ALLWINNER) += allwinner/ - obj-$(CONFIG_NET_VENDOR_ALTEON) += alteon/ - obj-$(CONFIG_ALTERA_TSE) += altera/ - obj-$(CONFIG_NET_VENDOR_AMD) += amd/ -+obj-$(CONFIG_NET_XGENE) += apm/ - obj-$(CONFIG_NET_VENDOR_APPLE) += apple/ - obj-$(CONFIG_NET_VENDOR_ARC) += arc/ - obj-$(CONFIG_NET_VENDOR_ATHEROS) += atheros/ -diff --git a/drivers/net/ethernet/apm/Kconfig b/drivers/net/ethernet/apm/Kconfig -new file mode 100644 -index 0000000..ec63d70 ---- /dev/null -+++ b/drivers/net/ethernet/apm/Kconfig -@@ -0,0 +1 @@ -+source "drivers/net/ethernet/apm/xgene/Kconfig" -diff --git a/drivers/net/ethernet/apm/Makefile b/drivers/net/ethernet/apm/Makefile -new file mode 100644 -index 0000000..65ce32a ---- /dev/null -+++ b/drivers/net/ethernet/apm/Makefile -@@ -0,0 +1,5 @@ -+# -+# Makefile for APM X-GENE Ethernet driver. -+# -+ -+obj-$(CONFIG_NET_XGENE) += xgene/ -diff --git a/drivers/net/ethernet/apm/xgene/Kconfig b/drivers/net/ethernet/apm/xgene/Kconfig -new file mode 100644 -index 0000000..616dff6 ---- /dev/null -+++ b/drivers/net/ethernet/apm/xgene/Kconfig -@@ -0,0 +1,9 @@ -+config NET_XGENE -+ tristate "APM X-Gene SoC Ethernet Driver" -+ select PHYLIB -+ help -+ This is the Ethernet driver for the on-chip ethernet interface on the -+ APM X-Gene SoC. -+ -+ To compile this driver as a module, choose M here. This module will -+ be called xgene_enet. -diff --git a/drivers/net/ethernet/apm/xgene/Makefile b/drivers/net/ethernet/apm/xgene/Makefile -new file mode 100644 -index 0000000..c643e8a ---- /dev/null -+++ b/drivers/net/ethernet/apm/xgene/Makefile -@@ -0,0 +1,6 @@ -+# -+# Makefile for APM X-Gene Ethernet Driver. -+# -+ -+xgene-enet-objs := xgene_enet_hw.o xgene_enet_main.o xgene_enet_ethtool.o -+obj-$(CONFIG_NET_XGENE) += xgene-enet.o -diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c b/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c -new file mode 100644 -index 0000000..63f2aa5 ---- /dev/null -+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c -@@ -0,0 +1,125 @@ -+/* Applied Micro X-Gene SoC Ethernet Driver -+ * -+ * Copyright (c) 2014, Applied Micro Circuits Corporation -+ * Authors: Iyappan Subramanian <isubramanian@apm.com> -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License as published by the -+ * Free Software Foundation; either version 2 of the License, or (at your -+ * option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program. If not, see <http://www.gnu.org/licenses/>. -+ */ -+ -+#include <linux/ethtool.h> -+#include "xgene_enet_main.h" -+ -+struct xgene_gstrings_stats { -+ char name[ETH_GSTRING_LEN]; -+ int offset; -+}; -+ -+#define XGENE_STAT(m) { #m, offsetof(struct xgene_enet_pdata, stats.m) } -+ -+static const struct xgene_gstrings_stats gstrings_stats[] = { -+ XGENE_STAT(rx_packets), -+ XGENE_STAT(tx_packets), -+ XGENE_STAT(rx_bytes), -+ XGENE_STAT(tx_bytes), -+ XGENE_STAT(rx_errors), -+ XGENE_STAT(tx_errors), -+ XGENE_STAT(rx_length_errors), -+ XGENE_STAT(rx_crc_errors), -+ XGENE_STAT(rx_frame_errors), -+ XGENE_STAT(rx_fifo_errors) -+}; -+ -+#define XGENE_STATS_LEN ARRAY_SIZE(gstrings_stats) -+ -+static void xgene_get_drvinfo(struct net_device *ndev, -+ struct ethtool_drvinfo *info) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ndev); -+ struct platform_device *pdev = pdata->pdev; -+ -+ strcpy(info->driver, "xgene_enet"); -+ strcpy(info->version, XGENE_DRV_VERSION); -+ snprintf(info->fw_version, ETHTOOL_FWVERS_LEN, "N/A"); -+ sprintf(info->bus_info, "%s", pdev->name); -+} -+ -+static int xgene_get_settings(struct net_device *ndev, struct ethtool_cmd *cmd) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ndev); -+ struct phy_device *phydev = pdata->phy_dev; -+ -+ if (phydev == NULL) -+ return -ENODEV; -+ -+ return phy_ethtool_gset(phydev, cmd); -+} -+ -+static int xgene_set_settings(struct net_device *ndev, struct ethtool_cmd *cmd) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ndev); -+ struct phy_device *phydev = pdata->phy_dev; -+ -+ if (phydev == NULL) -+ return -ENODEV; -+ -+ return phy_ethtool_sset(phydev, cmd); -+} -+ -+static void xgene_get_strings(struct net_device *ndev, u32 stringset, u8 *data) -+{ -+ int i; -+ u8 *p = data; -+ -+ if (stringset != ETH_SS_STATS) -+ return; -+ -+ for (i = 0; i < XGENE_STATS_LEN; i++) { -+ memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN); -+ p += ETH_GSTRING_LEN; -+ } -+} -+ -+static int xgene_get_sset_count(struct net_device *ndev, int sset) -+{ -+ if (sset != ETH_SS_STATS) -+ return -EINVAL; -+ -+ return XGENE_STATS_LEN; -+} -+ -+static void xgene_get_ethtool_stats(struct net_device *ndev, -+ struct ethtool_stats *dummy, -+ u64 *data) -+{ -+ void *pdata = netdev_priv(ndev); -+ int i; -+ -+ for (i = 0; i < XGENE_STATS_LEN; i++) -+ *data++ = *(u64 *)(pdata + gstrings_stats[i].offset); -+} -+ -+static const struct ethtool_ops xgene_ethtool_ops = { -+ .get_drvinfo = xgene_get_drvinfo, -+ .get_settings = xgene_get_settings, -+ .set_settings = xgene_set_settings, -+ .get_link = ethtool_op_get_link, -+ .get_strings = xgene_get_strings, -+ .get_sset_count = xgene_get_sset_count, -+ .get_ethtool_stats = xgene_get_ethtool_stats -+}; -+ -+void xgene_enet_set_ethtool_ops(struct net_device *ndev) -+{ -+ ndev->ethtool_ops = &xgene_ethtool_ops; -+} -diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c -new file mode 100644 -index 0000000..e52af60 ---- /dev/null -+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c -@@ -0,0 +1,747 @@ -+/* Applied Micro X-Gene SoC Ethernet Driver -+ * -+ * Copyright (c) 2014, Applied Micro Circuits Corporation -+ * Authors: Iyappan Subramanian <isubramanian@apm.com> -+ * Ravi Patel <rapatel@apm.com> -+ * Keyur Chudgar <kchudgar@apm.com> -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License as published by the -+ * Free Software Foundation; either version 2 of the License, or (at your -+ * option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program. If not, see <http://www.gnu.org/licenses/>. -+ */ -+ -+#include "xgene_enet_main.h" -+#include "xgene_enet_hw.h" -+ -+static void xgene_enet_ring_init(struct xgene_enet_desc_ring *ring) -+{ -+ u32 *ring_cfg = ring->state; -+ u64 addr = ring->dma; -+ enum xgene_enet_ring_cfgsize cfgsize = ring->cfgsize; -+ -+ ring_cfg[4] |= (1 << SELTHRSH_POS) & -+ CREATE_MASK(SELTHRSH_POS, SELTHRSH_LEN); -+ ring_cfg[3] |= ACCEPTLERR; -+ ring_cfg[2] |= QCOHERENT; -+ -+ addr >>= 8; -+ ring_cfg[2] |= (addr << RINGADDRL_POS) & -+ CREATE_MASK_ULL(RINGADDRL_POS, RINGADDRL_LEN); -+ addr >>= RINGADDRL_LEN; -+ ring_cfg[3] |= addr & CREATE_MASK_ULL(RINGADDRH_POS, RINGADDRH_LEN); -+ ring_cfg[3] |= ((u32) cfgsize << RINGSIZE_POS) & -+ CREATE_MASK(RINGSIZE_POS, RINGSIZE_LEN); -+} -+ -+static void xgene_enet_ring_set_type(struct xgene_enet_desc_ring *ring) -+{ -+ u32 *ring_cfg = ring->state; -+ bool is_bufpool; -+ u32 val; -+ -+ is_bufpool = xgene_enet_is_bufpool(ring->id); -+ val = (is_bufpool) ? RING_BUFPOOL : RING_REGULAR; -+ ring_cfg[4] |= (val << RINGTYPE_POS) & -+ CREATE_MASK(RINGTYPE_POS, RINGTYPE_LEN); -+ -+ if (is_bufpool) { -+ ring_cfg[3] |= (BUFPOOL_MODE << RINGMODE_POS) & -+ CREATE_MASK(RINGMODE_POS, RINGMODE_LEN); -+ } -+} -+ -+static void xgene_enet_ring_set_recombbuf(struct xgene_enet_desc_ring *ring) -+{ -+ u32 *ring_cfg = ring->state; -+ -+ ring_cfg[3] |= RECOMBBUF; -+ ring_cfg[3] |= (0xf << RECOMTIMEOUTL_POS) & -+ CREATE_MASK(RECOMTIMEOUTL_POS, RECOMTIMEOUTL_LEN); -+ ring_cfg[4] |= 0x7 & CREATE_MASK(RECOMTIMEOUTH_POS, RECOMTIMEOUTH_LEN); -+} -+ -+static void xgene_enet_ring_wr32(struct xgene_enet_desc_ring *ring, -+ u32 offset, u32 data) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ring->ndev); -+ -+ iowrite32(data, pdata->ring_csr_addr + offset); -+} -+ -+static void xgene_enet_ring_rd32(struct xgene_enet_desc_ring *ring, -+ u32 offset, u32 *data) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ring->ndev); -+ -+ *data = ioread32(pdata->ring_csr_addr + offset); -+} -+ -+static void xgene_enet_write_ring_state(struct xgene_enet_desc_ring *ring) -+{ -+ int i; -+ -+ xgene_enet_ring_wr32(ring, CSR_RING_CONFIG, ring->num); -+ for (i = 0; i < NUM_RING_CONFIG; i++) { -+ xgene_enet_ring_wr32(ring, CSR_RING_WR_BASE + (i * 4), -+ ring->state[i]); -+ } -+} -+ -+static void xgene_enet_clr_ring_state(struct xgene_enet_desc_ring *ring) -+{ -+ memset(ring->state, 0, sizeof(u32) * NUM_RING_CONFIG); -+ xgene_enet_write_ring_state(ring); -+} -+ -+static void xgene_enet_set_ring_state(struct xgene_enet_desc_ring *ring) -+{ -+ xgene_enet_ring_set_type(ring); -+ -+ if (xgene_enet_ring_owner(ring->id) == RING_OWNER_ETH0) -+ xgene_enet_ring_set_recombbuf(ring); -+ -+ xgene_enet_ring_init(ring); -+ xgene_enet_write_ring_state(ring); -+} -+ -+static void xgene_enet_set_ring_id(struct xgene_enet_desc_ring *ring) -+{ -+ u32 ring_id_val, ring_id_buf; -+ bool is_bufpool; -+ -+ is_bufpool = xgene_enet_is_bufpool(ring->id); -+ -+ ring_id_val = ring->id & GENMASK(9, 0); -+ ring_id_val |= OVERWRITE; -+ -+ ring_id_buf = (ring->num << 9) & GENMASK(18, 9); -+ ring_id_buf |= PREFETCH_BUF_EN; -+ if (is_bufpool) -+ ring_id_buf |= IS_BUFFER_POOL; -+ -+ xgene_enet_ring_wr32(ring, CSR_RING_ID, ring_id_val); -+ xgene_enet_ring_wr32(ring, CSR_RING_ID_BUF, ring_id_buf); -+} -+ -+static void xgene_enet_clr_desc_ring_id(struct xgene_enet_desc_ring *ring) -+{ -+ u32 ring_id; -+ -+ ring_id = ring->id | OVERWRITE; -+ xgene_enet_ring_wr32(ring, CSR_RING_ID, ring_id); -+ xgene_enet_ring_wr32(ring, CSR_RING_ID_BUF, 0); -+} -+ -+struct xgene_enet_desc_ring *xgene_enet_setup_ring( -+ struct xgene_enet_desc_ring *ring) -+{ -+ u32 size = ring->size; -+ u32 i, data; -+ u64 *desc; -+ bool is_bufpool; -+ -+ xgene_enet_clr_ring_state(ring); -+ xgene_enet_set_ring_state(ring); -+ xgene_enet_set_ring_id(ring); -+ -+ ring->slots = xgene_enet_get_numslots(ring->id, size); -+ -+ is_bufpool = xgene_enet_is_bufpool(ring->id); -+ if (is_bufpool || xgene_enet_ring_owner(ring->id) != RING_OWNER_CPU) -+ return ring; -+ -+ for (i = 0; i < ring->slots; i++) { -+ desc = (u64 *)&ring->raw_desc[i]; -+ desc[EMPTY_SLOT_INDEX] = EMPTY_SLOT; -+ } -+ -+ xgene_enet_ring_rd32(ring, CSR_RING_NE_INT_MODE, &data); -+ data |= BIT(31 - xgene_enet_ring_bufnum(ring->id)); -+ xgene_enet_ring_wr32(ring, CSR_RING_NE_INT_MODE, data); -+ -+ return ring; -+} -+ -+void xgene_enet_clear_ring(struct xgene_enet_desc_ring *ring) -+{ -+ u32 data; -+ bool is_bufpool; -+ -+ is_bufpool = xgene_enet_is_bufpool(ring->id); -+ if (is_bufpool || xgene_enet_ring_owner(ring->id) != RING_OWNER_CPU) -+ goto out; -+ -+ xgene_enet_ring_rd32(ring, CSR_RING_NE_INT_MODE, &data); -+ data &= ~BIT(31 - xgene_enet_ring_bufnum(ring->id)); -+ xgene_enet_ring_wr32(ring, CSR_RING_NE_INT_MODE, data); -+ -+out: -+ xgene_enet_clr_desc_ring_id(ring); -+ xgene_enet_clr_ring_state(ring); -+} -+ -+void xgene_enet_parse_error(struct xgene_enet_desc_ring *ring, -+ struct xgene_enet_pdata *pdata, -+ enum xgene_enet_err_code status) -+{ -+ struct rtnl_link_stats64 *stats = &pdata->stats; -+ -+ switch (status) { -+ case INGRESS_CRC: -+ stats->rx_crc_errors++; -+ break; -+ case INGRESS_CHECKSUM: -+ case INGRESS_CHECKSUM_COMPUTE: -+ stats->rx_errors++; -+ break; -+ case INGRESS_TRUNC_FRAME: -+ stats->rx_frame_errors++; -+ break; -+ case INGRESS_PKT_LEN: -+ stats->rx_length_errors++; -+ break; -+ case INGRESS_PKT_UNDER: -+ stats->rx_frame_errors++; -+ break; -+ case INGRESS_FIFO_OVERRUN: -+ stats->rx_fifo_errors++; -+ break; -+ default: -+ break; -+ } -+} -+ -+static void xgene_enet_wr_csr(struct xgene_enet_pdata *pdata, -+ u32 offset, u32 val) -+{ -+ void __iomem *addr = pdata->eth_csr_addr + offset; -+ -+ iowrite32(val, addr); -+} -+ -+static void xgene_enet_wr_ring_if(struct xgene_enet_pdata *pdata, -+ u32 offset, u32 val) -+{ -+ void __iomem *addr = pdata->eth_ring_if_addr + offset; -+ -+ iowrite32(val, addr); -+} -+ -+static void xgene_enet_wr_diag_csr(struct xgene_enet_pdata *pdata, -+ u32 offset, u32 val) -+{ -+ void __iomem *addr = pdata->eth_diag_csr_addr + offset; -+ -+ iowrite32(val, addr); -+} -+ -+static void xgene_enet_wr_mcx_csr(struct xgene_enet_pdata *pdata, -+ u32 offset, u32 val) -+{ -+ void __iomem *addr = pdata->mcx_mac_csr_addr + offset; -+ -+ iowrite32(val, addr); -+} -+ -+static bool xgene_enet_wr_indirect(void __iomem *addr, void __iomem *wr, -+ void __iomem *cmd, void __iomem *cmd_done, -+ u32 wr_addr, u32 wr_data) -+{ -+ u32 done; -+ u8 wait = 10; -+ -+ iowrite32(wr_addr, addr); -+ iowrite32(wr_data, wr); -+ iowrite32(XGENE_ENET_WR_CMD, cmd); -+ -+ /* wait for write command to complete */ -+ while (!(done = ioread32(cmd_done)) && wait--) -+ udelay(1); -+ -+ if (!done) -+ return false; -+ -+ iowrite32(0, cmd); -+ -+ return true; -+} -+ -+static void xgene_enet_wr_mcx_mac(struct xgene_enet_pdata *pdata, -+ u32 wr_addr, u32 wr_data) -+{ -+ void __iomem *addr, *wr, *cmd, *cmd_done; -+ bool ret; -+ -+ addr = pdata->mcx_mac_addr + MAC_ADDR_REG_OFFSET; -+ wr = pdata->mcx_mac_addr + MAC_WRITE_REG_OFFSET; -+ cmd = pdata->mcx_mac_addr + MAC_COMMAND_REG_OFFSET; -+ cmd_done = pdata->mcx_mac_addr + MAC_COMMAND_DONE_REG_OFFSET; -+ -+ ret = xgene_enet_wr_indirect(addr, wr, cmd, cmd_done, wr_addr, wr_data); -+ if (!ret) -+ netdev_err(pdata->ndev, "MCX mac write failed, addr: %04x\n", -+ wr_addr); -+} -+ -+static void xgene_enet_rd_csr(struct xgene_enet_pdata *pdata, -+ u32 offset, u32 *val) -+{ -+ void __iomem *addr = pdata->eth_csr_addr + offset; -+ -+ *val = ioread32(addr); -+} -+ -+static void xgene_enet_rd_diag_csr(struct xgene_enet_pdata *pdata, -+ u32 offset, u32 *val) -+{ -+ void __iomem *addr = pdata->eth_diag_csr_addr + offset; -+ -+ *val = ioread32(addr); -+} -+ -+static void xgene_enet_rd_mcx_csr(struct xgene_enet_pdata *pdata, -+ u32 offset, u32 *val) -+{ -+ void __iomem *addr = pdata->mcx_mac_csr_addr + offset; -+ -+ *val = ioread32(addr); -+} -+ -+static bool xgene_enet_rd_indirect(void __iomem *addr, void __iomem *rd, -+ void __iomem *cmd, void __iomem *cmd_done, -+ u32 rd_addr, u32 *rd_data) -+{ -+ u32 done; -+ u8 wait = 10; -+ -+ iowrite32(rd_addr, addr); -+ iowrite32(XGENE_ENET_RD_CMD, cmd); -+ -+ /* wait for read command to complete */ -+ while (!(done = ioread32(cmd_done)) && wait--) -+ udelay(1); -+ -+ if (!done) -+ return false; -+ -+ *rd_data = ioread32(rd); -+ iowrite32(0, cmd); -+ -+ return true; -+} -+ -+static void xgene_enet_rd_mcx_mac(struct xgene_enet_pdata *pdata, -+ u32 rd_addr, u32 *rd_data) -+{ -+ void __iomem *addr, *rd, *cmd, *cmd_done; -+ bool ret; -+ -+ addr = pdata->mcx_mac_addr + MAC_ADDR_REG_OFFSET; -+ rd = pdata->mcx_mac_addr + MAC_READ_REG_OFFSET; -+ cmd = pdata->mcx_mac_addr + MAC_COMMAND_REG_OFFSET; -+ cmd_done = pdata->mcx_mac_addr + MAC_COMMAND_DONE_REG_OFFSET; -+ -+ ret = xgene_enet_rd_indirect(addr, rd, cmd, cmd_done, rd_addr, rd_data); -+ if (!ret) -+ netdev_err(pdata->ndev, "MCX mac read failed, addr: %04x\n", -+ rd_addr); -+} -+ -+static int xgene_mii_phy_write(struct xgene_enet_pdata *pdata, int phy_id, -+ u32 reg, u16 data) -+{ -+ u32 addr = 0, wr_data = 0; -+ u32 done; -+ u8 wait = 10; -+ -+ PHY_ADDR_SET(&addr, phy_id); -+ REG_ADDR_SET(&addr, reg); -+ xgene_enet_wr_mcx_mac(pdata, MII_MGMT_ADDRESS_ADDR, addr); -+ -+ PHY_CONTROL_SET(&wr_data, data); -+ xgene_enet_wr_mcx_mac(pdata, MII_MGMT_CONTROL_ADDR, wr_data); -+ do { -+ usleep_range(5, 10); -+ xgene_enet_rd_mcx_mac(pdata, MII_MGMT_INDICATORS_ADDR, &done); -+ } while ((done & BUSY_MASK) && wait--); -+ -+ if (done & BUSY_MASK) { -+ netdev_err(pdata->ndev, "MII_MGMT write failed\n"); -+ return -1; -+ } -+ -+ return 0; -+} -+ -+static int xgene_mii_phy_read(struct xgene_enet_pdata *pdata, -+ u8 phy_id, u32 reg) -+{ -+ u32 addr = 0; -+ u32 data, done; -+ u8 wait = 10; -+ -+ PHY_ADDR_SET(&addr, phy_id); -+ REG_ADDR_SET(&addr, reg); -+ xgene_enet_wr_mcx_mac(pdata, MII_MGMT_ADDRESS_ADDR, addr); -+ xgene_enet_wr_mcx_mac(pdata, MII_MGMT_COMMAND_ADDR, READ_CYCLE_MASK); -+ do { -+ usleep_range(5, 10); -+ xgene_enet_rd_mcx_mac(pdata, MII_MGMT_INDICATORS_ADDR, &done); -+ } while ((done & BUSY_MASK) && wait--); -+ -+ if (done & BUSY_MASK) { -+ netdev_err(pdata->ndev, "MII_MGMT read failed\n"); -+ return -1; -+ } -+ -+ xgene_enet_rd_mcx_mac(pdata, MII_MGMT_STATUS_ADDR, &data); -+ xgene_enet_wr_mcx_mac(pdata, MII_MGMT_COMMAND_ADDR, 0); -+ -+ return data; -+} -+ -+void xgene_gmac_set_mac_addr(struct xgene_enet_pdata *pdata) -+{ -+ u32 addr0, addr1; -+ u8 *dev_addr = pdata->ndev->dev_addr; -+ -+ addr0 = (dev_addr[3] << 24) | (dev_addr[2] << 16) | -+ (dev_addr[1] << 8) | dev_addr[0]; -+ addr1 = (dev_addr[5] << 24) | (dev_addr[4] << 16); -+ addr1 |= pdata->phy_addr & 0xFFFF; -+ -+ xgene_enet_wr_mcx_mac(pdata, STATION_ADDR0_ADDR, addr0); -+ xgene_enet_wr_mcx_mac(pdata, STATION_ADDR1_ADDR, addr1); -+} -+ -+static int xgene_enet_ecc_init(struct xgene_enet_pdata *pdata) -+{ -+ struct net_device *ndev = pdata->ndev; -+ u32 data; -+ u8 wait = 10; -+ -+ xgene_enet_wr_diag_csr(pdata, ENET_CFG_MEM_RAM_SHUTDOWN_ADDR, 0x0); -+ do { -+ usleep_range(100, 110); -+ xgene_enet_rd_diag_csr(pdata, ENET_BLOCK_MEM_RDY_ADDR, &data); -+ } while ((data != 0xffffffff) && wait--); -+ -+ if (data != 0xffffffff) { -+ netdev_err(ndev, "Failed to release memory from shutdown\n"); -+ return -ENODEV; -+ } -+ -+ return 0; -+} -+ -+void xgene_gmac_reset(struct xgene_enet_pdata *pdata) -+{ -+ xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, SOFT_RESET1); -+ xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, 0); -+} -+ -+void xgene_gmac_init(struct xgene_enet_pdata *pdata, int speed) -+{ -+ u32 value, mc2; -+ u32 intf_ctl, rgmii; -+ u32 icm0, icm2; -+ -+ xgene_gmac_reset(pdata); -+ -+ xgene_enet_rd_mcx_csr(pdata, ICM_CONFIG0_REG_0_ADDR, &icm0); -+ xgene_enet_rd_mcx_csr(pdata, ICM_CONFIG2_REG_0_ADDR, &icm2); -+ xgene_enet_rd_mcx_mac(pdata, MAC_CONFIG_2_ADDR, &mc2); -+ xgene_enet_rd_mcx_mac(pdata, INTERFACE_CONTROL_ADDR, &intf_ctl); -+ xgene_enet_rd_csr(pdata, RGMII_REG_0_ADDR, &rgmii); -+ -+ switch (speed) { -+ case SPEED_10: -+ ENET_INTERFACE_MODE2_SET(&mc2, 1); -+ CFG_MACMODE_SET(&icm0, 0); -+ CFG_WAITASYNCRD_SET(&icm2, 500); -+ rgmii &= ~CFG_SPEED_1250; -+ break; -+ case SPEED_100: -+ ENET_INTERFACE_MODE2_SET(&mc2, 1); -+ intf_ctl |= ENET_LHD_MODE; -+ CFG_MACMODE_SET(&icm0, 1); -+ CFG_WAITASYNCRD_SET(&icm2, 80); -+ rgmii &= ~CFG_SPEED_1250; -+ break; -+ default: -+ ENET_INTERFACE_MODE2_SET(&mc2, 2); -+ intf_ctl |= ENET_GHD_MODE; -+ CFG_TXCLK_MUXSEL0_SET(&rgmii, 4); -+ xgene_enet_rd_csr(pdata, DEBUG_REG_ADDR, &value); -+ value |= CFG_BYPASS_UNISEC_TX | CFG_BYPASS_UNISEC_RX; -+ xgene_enet_wr_csr(pdata, DEBUG_REG_ADDR, value); -+ break; -+ } -+ -+ mc2 |= FULL_DUPLEX2; -+ xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_2_ADDR, mc2); -+ xgene_enet_wr_mcx_mac(pdata, INTERFACE_CONTROL_ADDR, intf_ctl); -+ -+ xgene_gmac_set_mac_addr(pdata); -+ -+ /* Adjust MDC clock frequency */ -+ xgene_enet_rd_mcx_mac(pdata, MII_MGMT_CONFIG_ADDR, &value); -+ MGMT_CLOCK_SEL_SET(&value, 7); -+ xgene_enet_wr_mcx_mac(pdata, MII_MGMT_CONFIG_ADDR, value); -+ -+ /* Enable drop if bufpool not available */ -+ xgene_enet_rd_csr(pdata, RSIF_CONFIG_REG_ADDR, &value); -+ value |= CFG_RSIF_FPBUFF_TIMEOUT_EN; -+ xgene_enet_wr_csr(pdata, RSIF_CONFIG_REG_ADDR, value); -+ -+ /* Rtype should be copied from FP */ -+ xgene_enet_wr_csr(pdata, RSIF_RAM_DBG_REG0_ADDR, 0); -+ xgene_enet_wr_csr(pdata, RGMII_REG_0_ADDR, rgmii); -+ -+ /* Rx-Tx traffic resume */ -+ xgene_enet_wr_csr(pdata, CFG_LINK_AGGR_RESUME_0_ADDR, TX_PORT0); -+ -+ xgene_enet_wr_mcx_csr(pdata, ICM_CONFIG0_REG_0_ADDR, icm0); -+ xgene_enet_wr_mcx_csr(pdata, ICM_CONFIG2_REG_0_ADDR, icm2); -+ -+ xgene_enet_rd_mcx_csr(pdata, RX_DV_GATE_REG_0_ADDR, &value); -+ value &= ~TX_DV_GATE_EN0; -+ value &= ~RX_DV_GATE_EN0; -+ value |= RESUME_RX0; -+ xgene_enet_wr_mcx_csr(pdata, RX_DV_GATE_REG_0_ADDR, value); -+ -+ xgene_enet_wr_csr(pdata, CFG_BYPASS_ADDR, RESUME_TX); -+} -+ -+static void xgene_enet_config_ring_if_assoc(struct xgene_enet_pdata *pdata) -+{ -+ u32 val = 0xffffffff; -+ -+ xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIWQASSOC_ADDR, val); -+ xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIFPQASSOC_ADDR, val); -+ xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIQMLITEWQASSOC_ADDR, val); -+ xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIQMLITEFPQASSOC_ADDR, val); -+} -+ -+void xgene_enet_cle_bypass(struct xgene_enet_pdata *pdata, -+ u32 dst_ring_num, u16 bufpool_id) -+{ -+ u32 cb; -+ u32 fpsel; -+ -+ fpsel = xgene_enet_ring_bufnum(bufpool_id) - 0x20; -+ -+ xgene_enet_rd_csr(pdata, CLE_BYPASS_REG0_0_ADDR, &cb); -+ cb |= CFG_CLE_BYPASS_EN0; -+ CFG_CLE_IP_PROTOCOL0_SET(&cb, 3); -+ xgene_enet_wr_csr(pdata, CLE_BYPASS_REG0_0_ADDR, cb); -+ -+ xgene_enet_rd_csr(pdata, CLE_BYPASS_REG1_0_ADDR, &cb); -+ CFG_CLE_DSTQID0_SET(&cb, dst_ring_num); -+ CFG_CLE_FPSEL0_SET(&cb, fpsel); -+ xgene_enet_wr_csr(pdata, CLE_BYPASS_REG1_0_ADDR, cb); -+} -+ -+void xgene_gmac_rx_enable(struct xgene_enet_pdata *pdata) -+{ -+ u32 data; -+ -+ xgene_enet_rd_mcx_mac(pdata, MAC_CONFIG_1_ADDR, &data); -+ xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, data | RX_EN); -+} -+ -+void xgene_gmac_tx_enable(struct xgene_enet_pdata *pdata) -+{ -+ u32 data; -+ -+ xgene_enet_rd_mcx_mac(pdata, MAC_CONFIG_1_ADDR, &data); -+ xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, data | TX_EN); -+} -+ -+void xgene_gmac_rx_disable(struct xgene_enet_pdata *pdata) -+{ -+ u32 data; -+ -+ xgene_enet_rd_mcx_mac(pdata, MAC_CONFIG_1_ADDR, &data); -+ xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, data & ~RX_EN); -+} -+ -+void xgene_gmac_tx_disable(struct xgene_enet_pdata *pdata) -+{ -+ u32 data; -+ -+ xgene_enet_rd_mcx_mac(pdata, MAC_CONFIG_1_ADDR, &data); -+ xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, data & ~TX_EN); -+} -+ -+void xgene_enet_reset(struct xgene_enet_pdata *pdata) -+{ -+ u32 val; -+ -+ clk_prepare_enable(pdata->clk); -+ clk_disable_unprepare(pdata->clk); -+ clk_prepare_enable(pdata->clk); -+ xgene_enet_ecc_init(pdata); -+ xgene_enet_config_ring_if_assoc(pdata); -+ -+ /* Enable auto-incr for scanning */ -+ xgene_enet_rd_mcx_mac(pdata, MII_MGMT_CONFIG_ADDR, &val); -+ val |= SCAN_AUTO_INCR; -+ MGMT_CLOCK_SEL_SET(&val, 1); -+ xgene_enet_wr_mcx_mac(pdata, MII_MGMT_CONFIG_ADDR, val); -+} -+ -+void xgene_gport_shutdown(struct xgene_enet_pdata *pdata) -+{ -+ clk_disable_unprepare(pdata->clk); -+} -+ -+static int xgene_enet_mdio_read(struct mii_bus *bus, int mii_id, int regnum) -+{ -+ struct xgene_enet_pdata *pdata = bus->priv; -+ u32 val; -+ -+ val = xgene_mii_phy_read(pdata, mii_id, regnum); -+ netdev_dbg(pdata->ndev, "mdio_rd: bus=%d reg=%d val=%x\n", -+ mii_id, regnum, val); -+ -+ return val; -+} -+ -+static int xgene_enet_mdio_write(struct mii_bus *bus, int mii_id, int regnum, -+ u16 val) -+{ -+ struct xgene_enet_pdata *pdata = bus->priv; -+ int ret; -+ -+ netdev_dbg(pdata->ndev, "mdio_wr: bus=%d reg=%d val=%x\n", -+ mii_id, regnum, val); -+ ret = xgene_mii_phy_write(pdata, mii_id, regnum, val); -+ -+ return ret; -+} -+ -+static void xgene_enet_adjust_link(struct net_device *ndev) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ndev); -+ struct phy_device *phydev = pdata->phy_dev; -+ -+ if (phydev->link) { -+ if (pdata->phy_speed != phydev->speed) { -+ xgene_gmac_init(pdata, phydev->speed); -+ xgene_gmac_rx_enable(pdata); -+ xgene_gmac_tx_enable(pdata); -+ pdata->phy_speed = phydev->speed; -+ phy_print_status(phydev); -+ } -+ } else { -+ xgene_gmac_rx_disable(pdata); -+ xgene_gmac_tx_disable(pdata); -+ pdata->phy_speed = SPEED_UNKNOWN; -+ phy_print_status(phydev); -+ } -+} -+ -+static int xgene_enet_phy_connect(struct net_device *ndev) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ndev); -+ struct device_node *phy_np; -+ struct phy_device *phy_dev; -+ struct device *dev = &pdata->pdev->dev; -+ -+ phy_np = of_parse_phandle(dev->of_node, "phy-handle", 0); -+ if (!phy_np) { -+ netdev_dbg(ndev, "No phy-handle found\n"); -+ return -ENODEV; -+ } -+ -+ phy_dev = of_phy_connect(ndev, phy_np, &xgene_enet_adjust_link, -+ 0, pdata->phy_mode); -+ if (!phy_dev) { -+ netdev_err(ndev, "Could not connect to PHY\n"); -+ return -ENODEV; -+ } -+ -+ pdata->phy_speed = SPEED_UNKNOWN; -+ phy_dev->supported &= ~SUPPORTED_10baseT_Half & -+ ~SUPPORTED_100baseT_Half & -+ ~SUPPORTED_1000baseT_Half; -+ phy_dev->advertising = phy_dev->supported; -+ pdata->phy_dev = phy_dev; -+ -+ return 0; -+} -+ -+int xgene_enet_mdio_config(struct xgene_enet_pdata *pdata) -+{ -+ struct net_device *ndev = pdata->ndev; -+ struct device *dev = &pdata->pdev->dev; -+ struct device_node *child_np; -+ struct device_node *mdio_np = NULL; -+ struct mii_bus *mdio_bus; -+ int ret; -+ -+ for_each_child_of_node(dev->of_node, child_np) { -+ if (of_device_is_compatible(child_np, "apm,xgene-mdio")) { -+ mdio_np = child_np; -+ break; -+ } -+ } -+ -+ if (!mdio_np) { -+ netdev_dbg(ndev, "No mdio node in the dts\n"); -+ return -1; -+ } -+ -+ mdio_bus = mdiobus_alloc(); -+ if (!mdio_bus) -+ return -ENOMEM; -+ -+ mdio_bus->name = "APM X-Gene MDIO bus"; -+ mdio_bus->read = xgene_enet_mdio_read; -+ mdio_bus->write = xgene_enet_mdio_write; -+ snprintf(mdio_bus->id, MII_BUS_ID_SIZE, "%s-%s", "xgene-mii", -+ ndev->name); -+ -+ mdio_bus->priv = pdata; -+ mdio_bus->parent = &ndev->dev; -+ -+ ret = of_mdiobus_register(mdio_bus, mdio_np); -+ if (ret) { -+ netdev_err(ndev, "Failed to register MDIO bus\n"); -+ goto err; -+ } -+ pdata->mdio_bus = mdio_bus; -+ -+ ret = xgene_enet_phy_connect(ndev); -+ if (ret) -+ goto err; -+ -+ return ret; -+ -+err: -+ mdiobus_free(mdio_bus); -+ -+ return ret; -+} -+ -+int xgene_enet_mdio_remove(struct xgene_enet_pdata *pdata) -+{ -+ struct mii_bus *mdio_bus; -+ -+ mdio_bus = pdata->mdio_bus; -+ mdiobus_unregister(mdio_bus); -+ mdiobus_free(mdio_bus); -+ pdata->mdio_bus = NULL; -+ -+ return 0; -+} -diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h -new file mode 100644 -index 0000000..2041313 ---- /dev/null -+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h -@@ -0,0 +1,375 @@ -+/* Applied Micro X-Gene SoC Ethernet Driver -+ * -+ * Copyright (c) 2014, Applied Micro Circuits Corporation -+ * Authors: Iyappan Subramanian <isubramanian@apm.com> -+ * Ravi Patel <rapatel@apm.com> -+ * Keyur Chudgar <kchudgar@apm.com> -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License as published by the -+ * Free Software Foundation; either version 2 of the License, or (at your -+ * option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program. If not, see <http://www.gnu.org/licenses/>. -+ */ -+ -+#ifndef __XGENE_ENET_HW_H__ -+#define __XGENE_ENET_HW_H__ -+ -+#include "xgene_enet_main.h" -+ -+struct xgene_enet_pdata; -+struct xgene_enet_stats; -+ -+/* clears and then set bits */ -+static inline void xgene_set_bits(u32 *dst, u32 val, u32 start, u32 len) -+{ -+ u32 end = start + len - 1; -+ u32 mask = GENMASK(end, start); -+ -+ *dst &= ~mask; -+ *dst |= (val << start) & mask; -+} -+ -+static inline u32 xgene_get_bits(u32 val, u32 start, u32 end) -+{ -+ return (val & GENMASK(end, start)) >> start; -+} -+ -+#define CSR_RING_ID 0x0008 -+#define OVERWRITE BIT(31) -+#define IS_BUFFER_POOL BIT(20) -+#define PREFETCH_BUF_EN BIT(21) -+#define CSR_RING_ID_BUF 0x000c -+#define CSR_RING_NE_INT_MODE 0x017c -+#define CSR_RING_CONFIG 0x006c -+#define CSR_RING_WR_BASE 0x0070 -+#define NUM_RING_CONFIG 5 -+#define BUFPOOL_MODE 3 -+#define RM3 3 -+#define INC_DEC_CMD_ADDR 0x002c -+#define UDP_HDR_SIZE 2 -+#define BUF_LEN_CODE_2K 0x5000 -+ -+#define CREATE_MASK(pos, len) GENMASK((pos)+(len)-1, (pos)) -+#define CREATE_MASK_ULL(pos, len) GENMASK_ULL((pos)+(len)-1, (pos)) -+ -+/* Empty slot soft signature */ -+#define EMPTY_SLOT_INDEX 1 -+#define EMPTY_SLOT ~0ULL -+ -+#define WORK_DESC_SIZE 32 -+#define BUFPOOL_DESC_SIZE 16 -+ -+#define RING_OWNER_MASK GENMASK(9, 6) -+#define RING_BUFNUM_MASK GENMASK(5, 0) -+ -+#define SELTHRSH_POS 3 -+#define SELTHRSH_LEN 3 -+#define RINGADDRL_POS 5 -+#define RINGADDRL_LEN 27 -+#define RINGADDRH_POS 0 -+#define RINGADDRH_LEN 6 -+#define RINGSIZE_POS 23 -+#define RINGSIZE_LEN 3 -+#define RINGTYPE_POS 19 -+#define RINGTYPE_LEN 2 -+#define RINGMODE_POS 20 -+#define RINGMODE_LEN 3 -+#define RECOMTIMEOUTL_POS 28 -+#define RECOMTIMEOUTL_LEN 3 -+#define RECOMTIMEOUTH_POS 0 -+#define RECOMTIMEOUTH_LEN 2 -+#define NUMMSGSINQ_POS 1 -+#define NUMMSGSINQ_LEN 16 -+#define ACCEPTLERR BIT(19) -+#define QCOHERENT BIT(4) -+#define RECOMBBUF BIT(27) -+ -+#define BLOCK_ETH_CSR_OFFSET 0x2000 -+#define BLOCK_ETH_RING_IF_OFFSET 0x9000 -+#define BLOCK_ETH_CLKRST_CSR_OFFSET 0xC000 -+#define BLOCK_ETH_DIAG_CSR_OFFSET 0xD000 -+ -+#define BLOCK_ETH_MAC_OFFSET 0x0000 -+#define BLOCK_ETH_STATS_OFFSET 0x0014 -+#define BLOCK_ETH_MAC_CSR_OFFSET 0x2800 -+ -+#define MAC_ADDR_REG_OFFSET 0x00 -+#define MAC_COMMAND_REG_OFFSET 0x04 -+#define MAC_WRITE_REG_OFFSET 0x08 -+#define MAC_READ_REG_OFFSET 0x0c -+#define MAC_COMMAND_DONE_REG_OFFSET 0x10 -+ -+#define STAT_ADDR_REG_OFFSET 0x00 -+#define STAT_COMMAND_REG_OFFSET 0x04 -+#define STAT_WRITE_REG_OFFSET 0x08 -+#define STAT_READ_REG_OFFSET 0x0c -+#define STAT_COMMAND_DONE_REG_OFFSET 0x10 -+ -+#define MII_MGMT_CONFIG_ADDR 0x20 -+#define MII_MGMT_COMMAND_ADDR 0x24 -+#define MII_MGMT_ADDRESS_ADDR 0x28 -+#define MII_MGMT_CONTROL_ADDR 0x2c -+#define MII_MGMT_STATUS_ADDR 0x30 -+#define MII_MGMT_INDICATORS_ADDR 0x34 -+ -+#define BUSY_MASK BIT(0) -+#define READ_CYCLE_MASK BIT(0) -+#define PHY_CONTROL_SET(dst, val) xgene_set_bits(dst, val, 0, 16) -+ -+#define ENET_SPARE_CFG_REG_ADDR 0x0750 -+#define RSIF_CONFIG_REG_ADDR 0x0010 -+#define RSIF_RAM_DBG_REG0_ADDR 0x0048 -+#define RGMII_REG_0_ADDR 0x07e0 -+#define CFG_LINK_AGGR_RESUME_0_ADDR 0x07c8 -+#define DEBUG_REG_ADDR 0x0700 -+#define CFG_BYPASS_ADDR 0x0294 -+#define CLE_BYPASS_REG0_0_ADDR 0x0490 -+#define CLE_BYPASS_REG1_0_ADDR 0x0494 -+#define CFG_RSIF_FPBUFF_TIMEOUT_EN BIT(31) -+#define RESUME_TX BIT(0) -+#define CFG_SPEED_1250 BIT(24) -+#define TX_PORT0 BIT(0) -+#define CFG_BYPASS_UNISEC_TX BIT(2) -+#define CFG_BYPASS_UNISEC_RX BIT(1) -+#define CFG_CLE_BYPASS_EN0 BIT(31) -+#define CFG_TXCLK_MUXSEL0_SET(dst, val) xgene_set_bits(dst, val, 29, 3) -+ -+#define CFG_CLE_IP_PROTOCOL0_SET(dst, val) xgene_set_bits(dst, val, 16, 2) -+#define CFG_CLE_DSTQID0_SET(dst, val) xgene_set_bits(dst, val, 0, 12) -+#define CFG_CLE_FPSEL0_SET(dst, val) xgene_set_bits(dst, val, 16, 4) -+#define CFG_MACMODE_SET(dst, val) xgene_set_bits(dst, val, 18, 2) -+#define CFG_WAITASYNCRD_SET(dst, val) xgene_set_bits(dst, val, 0, 16) -+#define ICM_CONFIG0_REG_0_ADDR 0x0400 -+#define ICM_CONFIG2_REG_0_ADDR 0x0410 -+#define RX_DV_GATE_REG_0_ADDR 0x05fc -+#define TX_DV_GATE_EN0 BIT(2) -+#define RX_DV_GATE_EN0 BIT(1) -+#define RESUME_RX0 BIT(0) -+#define ENET_CFGSSQMIWQASSOC_ADDR 0xe0 -+#define ENET_CFGSSQMIFPQASSOC_ADDR 0xdc -+#define ENET_CFGSSQMIQMLITEFPQASSOC_ADDR 0xf0 -+#define ENET_CFGSSQMIQMLITEWQASSOC_ADDR 0xf4 -+#define ENET_CFG_MEM_RAM_SHUTDOWN_ADDR 0x70 -+#define ENET_BLOCK_MEM_RDY_ADDR 0x74 -+#define MAC_CONFIG_1_ADDR 0x00 -+#define MAC_CONFIG_2_ADDR 0x04 -+#define MAX_FRAME_LEN_ADDR 0x10 -+#define INTERFACE_CONTROL_ADDR 0x38 -+#define STATION_ADDR0_ADDR 0x40 -+#define STATION_ADDR1_ADDR 0x44 -+#define PHY_ADDR_SET(dst, val) xgene_set_bits(dst, val, 8, 5) -+#define REG_ADDR_SET(dst, val) xgene_set_bits(dst, val, 0, 5) -+#define ENET_INTERFACE_MODE2_SET(dst, val) xgene_set_bits(dst, val, 8, 2) -+#define MGMT_CLOCK_SEL_SET(dst, val) xgene_set_bits(dst, val, 0, 3) -+#define SOFT_RESET1 BIT(31) -+#define TX_EN BIT(0) -+#define RX_EN BIT(2) -+#define ENET_LHD_MODE BIT(25) -+#define ENET_GHD_MODE BIT(26) -+#define FULL_DUPLEX2 BIT(0) -+#define SCAN_AUTO_INCR BIT(5) -+#define TBYT_ADDR 0x38 -+#define TPKT_ADDR 0x39 -+#define TDRP_ADDR 0x45 -+#define TFCS_ADDR 0x47 -+#define TUND_ADDR 0x4a -+ -+#define TSO_IPPROTO_TCP 1 -+#define FULL_DUPLEX 2 -+ -+#define USERINFO_POS 0 -+#define USERINFO_LEN 32 -+#define FPQNUM_POS 32 -+#define FPQNUM_LEN 12 -+#define LERR_POS 60 -+#define LERR_LEN 3 -+#define STASH_POS 52 -+#define STASH_LEN 2 -+#define BUFDATALEN_POS 48 -+#define BUFDATALEN_LEN 12 -+#define DATAADDR_POS 0 -+#define DATAADDR_LEN 42 -+#define COHERENT_POS 63 -+#define HENQNUM_POS 48 -+#define HENQNUM_LEN 12 -+#define TYPESEL_POS 44 -+#define TYPESEL_LEN 4 -+#define ETHHDR_POS 12 -+#define IC_POS 35 /* Insert CRC */ -+#define TCPHDR_POS 0 -+#define TCPHDR_LEN 6 -+#define IPHDR_POS 6 -+#define IPHDR_LEN 6 -+#define EC_POS 22 /* Enable checksum */ -+#define IS_POS 24 /* IP protocol select */ -+ -+#define DATAADDR_MASK CREATE_MASK_ULL(DATAADDR_POS, DATAADDR_LEN) -+#define BUFDATALEN_MASK CREATE_MASK_ULL(BUFDATALEN_POS, BUFDATALEN_LEN) -+#define USERINFO_MASK CREATE_MASK_ULL(USERINFO_POS, USERINFO_LEN) -+#define FPQNUM_MASK CREATE_MASK_ULL(FPQNUM_POS, FPQNUM_LEN) -+#define LERR_MASK CREATE_MASK_ULL(LERR_POS, LERR_LEN) -+#define STASHING_MASK CREATE_MASK_ULL(STASH_POS, STASH_LEN) -+#define COHERENT_MASK BIT_ULL(COHERENT_POS) -+#define HENQNUM_MASK CREATE_MASK_ULL(HENQNUM_POS, HENQNUM_LEN) -+#define TCPHDR_MASK CREATE_MASK(TCPHDR_POS, TCPHDR_LEN) -+#define IPHDR_MASK CREATE_MASK(IPHDR_POS, IPHDR_LEN) -+#define EC_MASK BIT(EC_POS) -+#define IS_MASK BIT(IS_POS) -+#define INSERT_CRC BIT_ULL(IC_POS) -+#define TYPE_ETH_WORK_MESSAGE BIT_ULL(44) -+ -+struct xgene_enet_raw_desc { -+ u64 m0; -+ u64 m1; -+ u64 m2; -+ u64 m3; -+}; -+ -+struct xgene_enet_raw_desc16 { -+ u64 m0; -+ u64 m1; -+}; -+ -+static inline void xgene_enet_cpu_to_le64(void *desc_ptr, int count) -+{ -+ u64 *desc = desc_ptr; -+ int i; -+ -+ for (i = 0; i < count; i++) -+ desc[i] = cpu_to_le64(desc[i]); -+} -+ -+static inline void xgene_enet_le64_to_cpu(void *desc_ptr, int count) -+{ -+ u64 *desc = desc_ptr; -+ int i; -+ -+ for (i = 0; i < count; i++) -+ desc[i] = le64_to_cpu(desc[i]); -+} -+ -+static inline void xgene_enet_desc16_to_le64(void *desc_ptr) -+{ -+ u64 *desc; -+ -+ desc = desc_ptr; -+ desc[1] = cpu_to_le64(desc[1]); -+} -+ -+static inline void xgene_enet_le64_to_desc16(void *desc_ptr) -+{ -+ u64 *desc; -+ -+ desc = desc_ptr; -+ desc[1] = le64_to_cpu(desc[1]); -+} -+ -+enum xgene_enet_ring_cfgsize { -+ RING_CFGSIZE_512B, -+ RING_CFGSIZE_2KB, -+ RING_CFGSIZE_16KB, -+ RING_CFGSIZE_64KB, -+ RING_CFGSIZE_512KB, -+ RING_CFGSIZE_INVALID -+}; -+ -+enum xgene_enet_ring_type { -+ RING_DISABLED, -+ RING_REGULAR, -+ RING_BUFPOOL -+}; -+ -+enum xgene_ring_owner { -+ RING_OWNER_ETH0, -+ RING_OWNER_CPU = 15, -+ RING_OWNER_INVALID -+}; -+ -+enum xgene_enet_ring_bufnum { -+ RING_BUFNUM_REGULAR = 0x0, -+ RING_BUFNUM_BUFPOOL = 0x20, -+ RING_BUFNUM_INVALID -+}; -+ -+enum xgene_enet_cmd { -+ XGENE_ENET_WR_CMD = BIT(31), -+ XGENE_ENET_RD_CMD = BIT(30) -+}; -+ -+enum xgene_enet_err_code { -+ HBF_READ_DATA = 3, -+ HBF_LL_READ = 4, -+ BAD_WORK_MSG = 6, -+ BUFPOOL_TIMEOUT = 15, -+ INGRESS_CRC = 16, -+ INGRESS_CHECKSUM = 17, -+ INGRESS_TRUNC_FRAME = 18, -+ INGRESS_PKT_LEN = 19, -+ INGRESS_PKT_UNDER = 20, -+ INGRESS_FIFO_OVERRUN = 21, -+ INGRESS_CHECKSUM_COMPUTE = 26, -+ ERR_CODE_INVALID -+}; -+ -+static inline enum xgene_ring_owner xgene_enet_ring_owner(u16 id) -+{ -+ return (id & RING_OWNER_MASK) >> 6; -+} -+ -+static inline u8 xgene_enet_ring_bufnum(u16 id) -+{ -+ return id & RING_BUFNUM_MASK; -+} -+ -+static inline bool xgene_enet_is_bufpool(u16 id) -+{ -+ return ((id & RING_BUFNUM_MASK) >= 0x20) ? true : false; -+} -+ -+static inline u16 xgene_enet_get_numslots(u16 id, u32 size) -+{ -+ bool is_bufpool = xgene_enet_is_bufpool(id); -+ -+ return (is_bufpool) ? size / BUFPOOL_DESC_SIZE : -+ size / WORK_DESC_SIZE; -+} -+ -+struct xgene_enet_desc_ring *xgene_enet_setup_ring( -+ struct xgene_enet_desc_ring *ring); -+void xgene_enet_clear_ring(struct xgene_enet_desc_ring *ring); -+ -+void xgene_set_tx_desc(struct xgene_enet_desc_ring *ring, -+ struct xgene_enet_raw_desc *raw_desc); -+void xgene_get_desc(struct xgene_enet_desc_ring *ring, -+ struct xgene_enet_raw_desc *raw_desc); -+void xgene_get_bufpool_desc(struct xgene_enet_desc_ring *ring, -+ struct xgene_enet_raw_desc16 *raw_desc); -+void xgene_enet_parse_error(struct xgene_enet_desc_ring *ring, -+ struct xgene_enet_pdata *pdata, -+ enum xgene_enet_err_code status); -+ -+void xgene_enet_reset(struct xgene_enet_pdata *priv); -+void xgene_gmac_reset(struct xgene_enet_pdata *priv); -+void xgene_gmac_init(struct xgene_enet_pdata *priv, int speed); -+void xgene_gmac_tx_enable(struct xgene_enet_pdata *priv); -+void xgene_gmac_rx_enable(struct xgene_enet_pdata *priv); -+void xgene_gmac_tx_disable(struct xgene_enet_pdata *priv); -+void xgene_gmac_rx_disable(struct xgene_enet_pdata *priv); -+void xgene_gmac_set_mac_addr(struct xgene_enet_pdata *pdata); -+void xgene_enet_cle_bypass(struct xgene_enet_pdata *pdata, -+ u32 dst_ring_num, u16 bufpool_id); -+void xgene_gport_shutdown(struct xgene_enet_pdata *priv); -+void xgene_gmac_get_tx_stats(struct xgene_enet_pdata *pdata); -+ -+int xgene_enet_mdio_config(struct xgene_enet_pdata *pdata); -+int xgene_enet_mdio_remove(struct xgene_enet_pdata *pdata); -+ -+#endif /* __XGENE_ENET_HW_H__ */ -diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c -new file mode 100644 -index 0000000..756523a ---- /dev/null -+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c -@@ -0,0 +1,962 @@ -+/* Applied Micro X-Gene SoC Ethernet Driver -+ * -+ * Copyright (c) 2014, Applied Micro Circuits Corporation -+ * Authors: Iyappan Subramanian <isubramanian@apm.com> -+ * Ravi Patel <rapatel@apm.com> -+ * Keyur Chudgar <kchudgar@apm.com> -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License as published by the -+ * Free Software Foundation; either version 2 of the License, or (at your -+ * option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program. If not, see <http://www.gnu.org/licenses/>. -+ */ -+ -+#include "xgene_enet_main.h" -+#include "xgene_enet_hw.h" -+ -+static void xgene_enet_init_bufpool(struct xgene_enet_desc_ring *buf_pool) -+{ -+ struct xgene_enet_raw_desc16 *raw_desc; -+ int i; -+ -+ for (i = 0; i < buf_pool->slots; i++) { -+ raw_desc = &buf_pool->raw_desc16[i]; -+ -+ /* Hardware expects descriptor in little endian format */ -+ raw_desc->m0 = cpu_to_le64(i | -+ (((u64)buf_pool->dst_ring_num << FPQNUM_POS) & -+ FPQNUM_MASK) | STASHING_MASK); -+ } -+} -+ -+static struct device *ndev_to_dev(struct net_device *ndev) -+{ -+ return ndev->dev.parent; -+} -+ -+static int xgene_enet_refill_bufpool(struct xgene_enet_desc_ring *buf_pool, -+ u32 nbuf) -+{ -+ struct sk_buff *skb; -+ struct xgene_enet_raw_desc16 *raw_desc; -+ struct net_device *ndev; -+ struct device *dev; -+ dma_addr_t dma_addr; -+ u32 tail = buf_pool->tail; -+ u32 slots = buf_pool->slots - 1; -+ u16 bufdatalen, len; -+ int i; -+ -+ ndev = buf_pool->ndev; -+ dev = ndev_to_dev(buf_pool->ndev); -+ bufdatalen = BUF_LEN_CODE_2K | (SKB_BUFFER_SIZE & GENMASK(11, 0)); -+ len = XGENE_ENET_MAX_MTU; -+ -+ for (i = 0; i < nbuf; i++) { -+ raw_desc = &buf_pool->raw_desc16[tail]; -+ -+ skb = netdev_alloc_skb_ip_align(ndev, len); -+ if (unlikely(!skb)) -+ return -ENOMEM; -+ buf_pool->rx_skb[tail] = skb; -+ -+ dma_addr = dma_map_single(dev, skb->data, len, DMA_FROM_DEVICE); -+ if (dma_mapping_error(dev, dma_addr)) { -+ netdev_err(ndev, "DMA mapping error\n"); -+ dev_kfree_skb_any(skb); -+ return -EINVAL; -+ } -+ -+ raw_desc->m1 = cpu_to_le64((dma_addr & DATAADDR_MASK) | -+ (((u64)bufdatalen << BUFDATALEN_POS) & -+ BUFDATALEN_MASK) | COHERENT_MASK); -+ tail = (tail + 1) & slots; -+ } -+ -+ iowrite32(nbuf, buf_pool->cmd); -+ buf_pool->tail = tail; -+ -+ return 0; -+} -+ -+static u16 xgene_enet_dst_ring_num(struct xgene_enet_desc_ring *ring) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ring->ndev); -+ -+ return ((u16)pdata->rm << 10) | ring->num; -+} -+ -+static u8 xgene_enet_hdr_len(const void *data) -+{ -+ const struct ethhdr *eth = data; -+ -+ return (eth->h_proto == htons(ETH_P_8021Q)) ? VLAN_ETH_HLEN : ETH_HLEN; -+} -+ -+static u32 xgene_enet_ring_len(struct xgene_enet_desc_ring *ring) -+{ -+ u32 *cmd_base = ring->cmd_base; -+ u32 ring_state, num_msgs; -+ -+ ring_state = ioread32(&cmd_base[1]); -+ num_msgs = ring_state & CREATE_MASK(NUMMSGSINQ_POS, NUMMSGSINQ_LEN); -+ -+ return num_msgs >> NUMMSGSINQ_POS; -+} -+ -+static void xgene_enet_delete_bufpool(struct xgene_enet_desc_ring *buf_pool) -+{ -+ struct xgene_enet_raw_desc16 *raw_desc; -+ u32 slots = buf_pool->slots - 1; -+ u32 tail = buf_pool->tail; -+ u32 userinfo; -+ int i, len; -+ -+ len = xgene_enet_ring_len(buf_pool); -+ for (i = 0; i < len; i++) { -+ tail = (tail - 1) & slots; -+ raw_desc = &buf_pool->raw_desc16[tail]; -+ -+ /* Hardware stores descriptor in little endian format */ -+ userinfo = le64_to_cpu(raw_desc->m0) & USERINFO_MASK; -+ dev_kfree_skb_any(buf_pool->rx_skb[userinfo]); -+ } -+ -+ iowrite32(-len, buf_pool->cmd); -+ buf_pool->tail = tail; -+} -+ -+static irqreturn_t xgene_enet_rx_irq(const int irq, void *data) -+{ -+ struct xgene_enet_desc_ring *rx_ring = data; -+ -+ if (napi_schedule_prep(&rx_ring->napi)) { -+ disable_irq_nosync(irq); -+ __napi_schedule(&rx_ring->napi); -+ } -+ -+ return IRQ_HANDLED; -+} -+ -+static int xgene_enet_tx_completion(struct xgene_enet_desc_ring *cp_ring, -+ struct xgene_enet_raw_desc *raw_desc) -+{ -+ struct sk_buff *skb; -+ struct device *dev; -+ u16 skb_index; -+ u8 status; -+ int ret = 0; -+ -+ skb_index = raw_desc->m0 & USERINFO_MASK; -+ skb = cp_ring->cp_skb[skb_index]; -+ -+ dev = ndev_to_dev(cp_ring->ndev); -+ dma_unmap_single(dev, raw_desc->m1 & DATAADDR_MASK, -+ (raw_desc->m1 & BUFDATALEN_MASK) >> BUFDATALEN_POS, -+ DMA_TO_DEVICE); -+ -+ /* Checking for error */ -+ status = (raw_desc->m0 & LERR_MASK) >> LERR_POS; -+ if (unlikely(status > 2)) { -+ xgene_enet_parse_error(cp_ring, netdev_priv(cp_ring->ndev), -+ status); -+ ret = -1; -+ } -+ -+ if (likely(skb)) { -+ dev_kfree_skb_any(skb); -+ } else { -+ netdev_err(cp_ring->ndev, "completion skb is NULL\n"); -+ ret = -1; -+ } -+ -+ return ret; -+} -+ -+static u64 xgene_enet_work_msg(struct sk_buff *skb) -+{ -+ struct iphdr *iph; -+ u8 l3hlen, l4hlen = 0; -+ u8 csum_enable = 0; -+ u8 proto = 0; -+ u8 ethhdr; -+ u64 hopinfo; -+ -+ if (unlikely(skb->protocol != htons(ETH_P_IP)) && -+ unlikely(skb->protocol != htons(ETH_P_8021Q))) -+ goto out; -+ -+ if (unlikely(!(skb->dev->features & NETIF_F_IP_CSUM))) -+ goto out; -+ -+ iph = ip_hdr(skb); -+ if (unlikely(ip_is_fragment(iph))) -+ goto out; -+ -+ if (likely(iph->protocol == IPPROTO_TCP)) { -+ l4hlen = tcp_hdrlen(skb) >> 2; -+ csum_enable = 1; -+ proto = TSO_IPPROTO_TCP; -+ } else if (iph->protocol == IPPROTO_UDP) { -+ l4hlen = UDP_HDR_SIZE; -+ csum_enable = 1; -+ } -+out: -+ l3hlen = ip_hdrlen(skb) >> 2; -+ ethhdr = xgene_enet_hdr_len(skb->data); -+ hopinfo = (l4hlen & TCPHDR_MASK) | -+ ((l3hlen << IPHDR_POS) & IPHDR_MASK) | -+ (ethhdr << ETHHDR_POS) | -+ (csum_enable << EC_POS) | -+ (proto << IS_POS) | -+ INSERT_CRC | -+ TYPE_ETH_WORK_MESSAGE; -+ -+ return hopinfo; -+} -+ -+static int xgene_enet_setup_tx_desc(struct xgene_enet_desc_ring *tx_ring, -+ struct sk_buff *skb) -+{ -+ struct device *dev = ndev_to_dev(tx_ring->ndev); -+ struct xgene_enet_raw_desc *raw_desc; -+ dma_addr_t dma_addr; -+ u16 tail = tx_ring->tail; -+ u64 hopinfo; -+ -+ raw_desc = &tx_ring->raw_desc[tail]; -+ memset(raw_desc, 0, sizeof(struct xgene_enet_raw_desc)); -+ -+ dma_addr = dma_map_single(dev, skb->data, skb->len, DMA_TO_DEVICE); -+ if (dma_mapping_error(dev, dma_addr)) { -+ netdev_err(tx_ring->ndev, "DMA mapping error\n"); -+ return -EINVAL; -+ } -+ -+ /* Hardware expects descriptor in little endian format */ -+ raw_desc->m0 = cpu_to_le64(tail); -+ raw_desc->m1 = cpu_to_le64((dma_addr & DATAADDR_MASK) | -+ (((u64)skb->len << BUFDATALEN_POS) & BUFDATALEN_MASK) | -+ COHERENT_MASK); -+ hopinfo = xgene_enet_work_msg(skb); -+ raw_desc->m3 = cpu_to_le64( -+ (((u64)tx_ring->dst_ring_num << HENQNUM_POS) & -+ HENQNUM_MASK) | hopinfo); -+ tx_ring->cp_ring->cp_skb[tail] = skb; -+ -+ return 0; -+} -+ -+static netdev_tx_t xgene_enet_start_xmit(struct sk_buff *skb, -+ struct net_device *ndev) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ndev); -+ struct xgene_enet_desc_ring *tx_ring = pdata->tx_ring; -+ struct xgene_enet_desc_ring *cp_ring = tx_ring->cp_ring; -+ u32 tx_level, cq_level; -+ -+ tx_level = xgene_enet_ring_len(tx_ring); -+ cq_level = xgene_enet_ring_len(cp_ring); -+ if (unlikely(tx_level > pdata->tx_qcnt_hi || -+ cq_level > pdata->cp_qcnt_hi)) { -+ netif_stop_queue(ndev); -+ return NETDEV_TX_BUSY; -+ } -+ -+ if (xgene_enet_setup_tx_desc(tx_ring, skb)) { -+ dev_kfree_skb_any(skb); -+ return NETDEV_TX_OK; -+ } -+ -+ iowrite32(1, tx_ring->cmd); -+ skb_tx_timestamp(skb); -+ tx_ring->tail = (tx_ring->tail + 1) & (tx_ring->slots - 1); -+ -+ pdata->stats.tx_packets++; -+ pdata->stats.tx_bytes += skb->len; -+ -+ return NETDEV_TX_OK; -+} -+ -+static void xgene_enet_skip_csum(struct sk_buff *skb) -+{ -+ struct iphdr *iph = ip_hdr(skb); -+ -+ if (!ip_is_fragment(iph) || -+ (iph->protocol != IPPROTO_TCP && iph->protocol != IPPROTO_UDP)) { -+ skb->ip_summed = CHECKSUM_UNNECESSARY; -+ } -+} -+ -+static int xgene_enet_rx_frame(struct xgene_enet_desc_ring *rx_ring, -+ struct xgene_enet_raw_desc *raw_desc) -+{ -+ struct net_device *ndev; -+ struct xgene_enet_pdata *pdata; -+ struct device *dev; -+ struct xgene_enet_desc_ring *buf_pool; -+ u32 datalen, skb_index; -+ struct sk_buff *skb; -+ u8 status; -+ int ret = 0; -+ -+ ndev = rx_ring->ndev; -+ pdata = netdev_priv(ndev); -+ dev = ndev_to_dev(rx_ring->ndev); -+ buf_pool = rx_ring->buf_pool; -+ -+ dma_unmap_single(dev, raw_desc->m1 & DATAADDR_MASK, XGENE_ENET_MAX_MTU, -+ DMA_FROM_DEVICE); -+ skb_index = raw_desc->m0 & USERINFO_MASK; -+ skb = buf_pool->rx_skb[skb_index]; -+ -+ /* checking for error */ -+ status = (raw_desc->m0 & LERR_MASK) >> LERR_POS; -+ if (unlikely(status > 2)) { -+ dev_kfree_skb_any(skb); -+ xgene_enet_parse_error(rx_ring, netdev_priv(rx_ring->ndev), -+ status); -+ pdata->stats.rx_dropped++; -+ ret = -1; -+ goto out; -+ } -+ -+ /* strip off CRC as HW isn't doing this */ -+ datalen = (raw_desc->m1 & BUFDATALEN_MASK) >> BUFDATALEN_POS; -+ datalen -= 4; -+ prefetch(skb->data - NET_IP_ALIGN); -+ skb_put(skb, datalen); -+ -+ skb_checksum_none_assert(skb); -+ skb->protocol = eth_type_trans(skb, ndev); -+ if (likely((ndev->features & NETIF_F_IP_CSUM) && -+ skb->protocol == htons(ETH_P_IP))) { -+ xgene_enet_skip_csum(skb); -+ } -+ -+ pdata->stats.rx_packets++; -+ pdata->stats.rx_bytes += datalen; -+ napi_gro_receive(&rx_ring->napi, skb); -+out: -+ if (--rx_ring->nbufpool == 0) { -+ ret = xgene_enet_refill_bufpool(buf_pool, NUM_BUFPOOL); -+ rx_ring->nbufpool = NUM_BUFPOOL; -+ } -+ -+ return ret; -+} -+ -+static bool is_rx_desc(struct xgene_enet_raw_desc *raw_desc) -+{ -+ /* Hardware stores descriptor in little endian format */ -+ raw_desc->m0 = le64_to_cpu(raw_desc->m0); -+ raw_desc->m1 = le64_to_cpu(raw_desc->m1); -+ return ((raw_desc->m0 & FPQNUM_MASK) >> FPQNUM_POS) ? true : false; -+} -+ -+static int xgene_enet_process_ring(struct xgene_enet_desc_ring *ring, -+ int budget) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ring->ndev); -+ struct xgene_enet_raw_desc *raw_desc; -+ u16 head = ring->head; -+ u16 slots = ring->slots - 1; -+ int ret, count = 0; -+ -+ do { -+ raw_desc = &ring->raw_desc[head]; -+ if (unlikely(((u64 *)raw_desc)[EMPTY_SLOT_INDEX] == EMPTY_SLOT)) -+ break; -+ -+ if (is_rx_desc(raw_desc)) -+ ret = xgene_enet_rx_frame(ring, raw_desc); -+ else -+ ret = xgene_enet_tx_completion(ring, raw_desc); -+ ((u64 *)raw_desc)[EMPTY_SLOT_INDEX] = EMPTY_SLOT; -+ -+ head = (head + 1) & slots; -+ count++; -+ -+ if (ret) -+ break; -+ } while (--budget); -+ -+ if (likely(count)) { -+ iowrite32(-count, ring->cmd); -+ ring->head = head; -+ -+ if (netif_queue_stopped(ring->ndev)) { -+ if (xgene_enet_ring_len(ring) < pdata->cp_qcnt_low) -+ netif_wake_queue(ring->ndev); -+ } -+ } -+ -+ return budget; -+} -+ -+static int xgene_enet_napi(struct napi_struct *napi, const int budget) -+{ -+ struct xgene_enet_desc_ring *ring; -+ int processed; -+ -+ ring = container_of(napi, struct xgene_enet_desc_ring, napi); -+ processed = xgene_enet_process_ring(ring, budget); -+ -+ if (processed != budget) { -+ napi_complete(napi); -+ enable_irq(ring->irq); -+ } -+ -+ return processed; -+} -+ -+static void xgene_enet_timeout(struct net_device *ndev) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ndev); -+ -+ xgene_gmac_reset(pdata); -+} -+ -+static int xgene_enet_register_irq(struct net_device *ndev) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ndev); -+ struct device *dev = ndev_to_dev(ndev); -+ int ret; -+ -+ ret = devm_request_irq(dev, pdata->rx_ring->irq, xgene_enet_rx_irq, -+ IRQF_SHARED, ndev->name, pdata->rx_ring); -+ if (ret) { -+ netdev_err(ndev, "rx%d interrupt request failed\n", -+ pdata->rx_ring->irq); -+ } -+ -+ return ret; -+} -+ -+static void xgene_enet_free_irq(struct net_device *ndev) -+{ -+ struct xgene_enet_pdata *pdata; -+ struct device *dev; -+ -+ pdata = netdev_priv(ndev); -+ dev = ndev_to_dev(ndev); -+ devm_free_irq(dev, pdata->rx_ring->irq, pdata->rx_ring); -+} -+ -+static int xgene_enet_open(struct net_device *ndev) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ndev); -+ int ret; -+ -+ xgene_gmac_tx_enable(pdata); -+ xgene_gmac_rx_enable(pdata); -+ -+ ret = xgene_enet_register_irq(ndev); -+ if (ret) -+ return ret; -+ napi_enable(&pdata->rx_ring->napi); -+ -+ if (pdata->phy_dev) -+ phy_start(pdata->phy_dev); -+ -+ netif_start_queue(ndev); -+ -+ return ret; -+} -+ -+static int xgene_enet_close(struct net_device *ndev) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ndev); -+ -+ netif_stop_queue(ndev); -+ -+ if (pdata->phy_dev) -+ phy_stop(pdata->phy_dev); -+ -+ napi_disable(&pdata->rx_ring->napi); -+ xgene_enet_free_irq(ndev); -+ xgene_enet_process_ring(pdata->rx_ring, -1); -+ -+ xgene_gmac_tx_disable(pdata); -+ xgene_gmac_rx_disable(pdata); -+ -+ return 0; -+} -+ -+static void xgene_enet_delete_ring(struct xgene_enet_desc_ring *ring) -+{ -+ struct xgene_enet_pdata *pdata; -+ struct device *dev; -+ -+ pdata = netdev_priv(ring->ndev); -+ dev = ndev_to_dev(ring->ndev); -+ -+ xgene_enet_clear_ring(ring); -+ dma_free_coherent(dev, ring->size, ring->desc_addr, ring->dma); -+} -+ -+static void xgene_enet_delete_desc_rings(struct xgene_enet_pdata *pdata) -+{ -+ struct xgene_enet_desc_ring *buf_pool; -+ -+ if (pdata->tx_ring) { -+ xgene_enet_delete_ring(pdata->tx_ring); -+ pdata->tx_ring = NULL; -+ } -+ -+ if (pdata->rx_ring) { -+ buf_pool = pdata->rx_ring->buf_pool; -+ xgene_enet_delete_bufpool(buf_pool); -+ xgene_enet_delete_ring(buf_pool); -+ xgene_enet_delete_ring(pdata->rx_ring); -+ pdata->rx_ring = NULL; -+ } -+} -+ -+static int xgene_enet_get_ring_size(struct device *dev, -+ enum xgene_enet_ring_cfgsize cfgsize) -+{ -+ int size = -EINVAL; -+ -+ switch (cfgsize) { -+ case RING_CFGSIZE_512B: -+ size = 0x200; -+ break; -+ case RING_CFGSIZE_2KB: -+ size = 0x800; -+ break; -+ case RING_CFGSIZE_16KB: -+ size = 0x4000; -+ break; -+ case RING_CFGSIZE_64KB: -+ size = 0x10000; -+ break; -+ case RING_CFGSIZE_512KB: -+ size = 0x80000; -+ break; -+ default: -+ dev_err(dev, "Unsupported cfg ring size %d\n", cfgsize); -+ break; -+ } -+ -+ return size; -+} -+ -+static void xgene_enet_free_desc_ring(struct xgene_enet_desc_ring *ring) -+{ -+ struct device *dev; -+ -+ if (!ring) -+ return; -+ -+ dev = ndev_to_dev(ring->ndev); -+ -+ if (ring->desc_addr) { -+ xgene_enet_clear_ring(ring); -+ dma_free_coherent(dev, ring->size, ring->desc_addr, ring->dma); -+ } -+ devm_kfree(dev, ring); -+} -+ -+static void xgene_enet_free_desc_rings(struct xgene_enet_pdata *pdata) -+{ -+ struct device *dev = &pdata->pdev->dev; -+ struct xgene_enet_desc_ring *ring; -+ -+ ring = pdata->tx_ring; -+ if (ring && ring->cp_ring && ring->cp_ring->cp_skb) -+ devm_kfree(dev, ring->cp_ring->cp_skb); -+ xgene_enet_free_desc_ring(ring); -+ -+ ring = pdata->rx_ring; -+ if (ring && ring->buf_pool && ring->buf_pool->rx_skb) -+ devm_kfree(dev, ring->buf_pool->rx_skb); -+ xgene_enet_free_desc_ring(ring->buf_pool); -+ xgene_enet_free_desc_ring(ring); -+} -+ -+static struct xgene_enet_desc_ring *xgene_enet_create_desc_ring( -+ struct net_device *ndev, u32 ring_num, -+ enum xgene_enet_ring_cfgsize cfgsize, u32 ring_id) -+{ -+ struct xgene_enet_desc_ring *ring; -+ struct xgene_enet_pdata *pdata = netdev_priv(ndev); -+ struct device *dev = ndev_to_dev(ndev); -+ u32 size; -+ -+ ring = devm_kzalloc(dev, sizeof(struct xgene_enet_desc_ring), -+ GFP_KERNEL); -+ if (!ring) -+ return NULL; -+ -+ ring->ndev = ndev; -+ ring->num = ring_num; -+ ring->cfgsize = cfgsize; -+ ring->id = ring_id; -+ -+ size = xgene_enet_get_ring_size(dev, cfgsize); -+ ring->desc_addr = dma_zalloc_coherent(dev, size, &ring->dma, -+ GFP_KERNEL); -+ if (!ring->desc_addr) { -+ devm_kfree(dev, ring); -+ return NULL; -+ } -+ ring->size = size; -+ -+ ring->cmd_base = pdata->ring_cmd_addr + (ring->num << 6); -+ ring->cmd = ring->cmd_base + INC_DEC_CMD_ADDR; -+ pdata->rm = RM3; -+ ring = xgene_enet_setup_ring(ring); -+ netdev_dbg(ndev, "ring info: num=%d size=%d id=%d slots=%d\n", -+ ring->num, ring->size, ring->id, ring->slots); -+ -+ return ring; -+} -+ -+static u16 xgene_enet_get_ring_id(enum xgene_ring_owner owner, u8 bufnum) -+{ -+ return (owner << 6) | (bufnum & GENMASK(5, 0)); -+} -+ -+static int xgene_enet_create_desc_rings(struct net_device *ndev) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ndev); -+ struct device *dev = ndev_to_dev(ndev); -+ struct xgene_enet_desc_ring *rx_ring, *tx_ring, *cp_ring; -+ struct xgene_enet_desc_ring *buf_pool = NULL; -+ u8 cpu_bufnum = 0, eth_bufnum = 0; -+ u8 bp_bufnum = 0x20; -+ u16 ring_id, ring_num = 0; -+ int ret; -+ -+ /* allocate rx descriptor ring */ -+ ring_id = xgene_enet_get_ring_id(RING_OWNER_CPU, cpu_bufnum++); -+ rx_ring = xgene_enet_create_desc_ring(ndev, ring_num++, -+ RING_CFGSIZE_16KB, ring_id); -+ if (!rx_ring) { -+ ret = -ENOMEM; -+ goto err; -+ } -+ -+ /* allocate buffer pool for receiving packets */ -+ ring_id = xgene_enet_get_ring_id(RING_OWNER_ETH0, bp_bufnum++); -+ buf_pool = xgene_enet_create_desc_ring(ndev, ring_num++, -+ RING_CFGSIZE_2KB, ring_id); -+ if (!buf_pool) { -+ ret = -ENOMEM; -+ goto err; -+ } -+ -+ rx_ring->nbufpool = NUM_BUFPOOL; -+ rx_ring->buf_pool = buf_pool; -+ rx_ring->irq = pdata->rx_irq; -+ buf_pool->rx_skb = devm_kcalloc(dev, buf_pool->slots, -+ sizeof(struct sk_buff *), GFP_KERNEL); -+ if (!buf_pool->rx_skb) { -+ ret = -ENOMEM; -+ goto err; -+ } -+ -+ buf_pool->dst_ring_num = xgene_enet_dst_ring_num(buf_pool); -+ rx_ring->buf_pool = buf_pool; -+ pdata->rx_ring = rx_ring; -+ -+ /* allocate tx descriptor ring */ -+ ring_id = xgene_enet_get_ring_id(RING_OWNER_ETH0, eth_bufnum++); -+ tx_ring = xgene_enet_create_desc_ring(ndev, ring_num++, -+ RING_CFGSIZE_16KB, ring_id); -+ if (!tx_ring) { -+ ret = -ENOMEM; -+ goto err; -+ } -+ pdata->tx_ring = tx_ring; -+ -+ cp_ring = pdata->rx_ring; -+ cp_ring->cp_skb = devm_kcalloc(dev, tx_ring->slots, -+ sizeof(struct sk_buff *), GFP_KERNEL); -+ if (!cp_ring->cp_skb) { -+ ret = -ENOMEM; -+ goto err; -+ } -+ pdata->tx_ring->cp_ring = cp_ring; -+ pdata->tx_ring->dst_ring_num = xgene_enet_dst_ring_num(cp_ring); -+ -+ pdata->tx_qcnt_hi = pdata->tx_ring->slots / 2; -+ pdata->cp_qcnt_hi = pdata->rx_ring->slots / 2; -+ pdata->cp_qcnt_low = pdata->cp_qcnt_hi / 2; -+ -+ return 0; -+ -+err: -+ xgene_enet_free_desc_rings(pdata); -+ return ret; -+} -+ -+static struct rtnl_link_stats64 *xgene_enet_get_stats64( -+ struct net_device *ndev, -+ struct rtnl_link_stats64 *storage) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ndev); -+ struct rtnl_link_stats64 *stats = &pdata->stats; -+ -+ spin_lock(&pdata->stats_lock); -+ stats->rx_errors += stats->rx_length_errors + -+ stats->rx_crc_errors + -+ stats->rx_frame_errors + -+ stats->rx_fifo_errors; -+ memcpy(storage, &pdata->stats, sizeof(struct rtnl_link_stats64)); -+ spin_unlock(&pdata->stats_lock); -+ -+ return storage; -+} -+ -+static int xgene_enet_set_mac_address(struct net_device *ndev, void *addr) -+{ -+ struct xgene_enet_pdata *pdata = netdev_priv(ndev); -+ int ret; -+ -+ ret = eth_mac_addr(ndev, addr); -+ if (ret) -+ return ret; -+ xgene_gmac_set_mac_addr(pdata); -+ -+ return ret; -+} -+ -+static const struct net_device_ops xgene_ndev_ops = { -+ .ndo_open = xgene_enet_open, -+ .ndo_stop = xgene_enet_close, -+ .ndo_start_xmit = xgene_enet_start_xmit, -+ .ndo_tx_timeout = xgene_enet_timeout, -+ .ndo_get_stats64 = xgene_enet_get_stats64, -+ .ndo_change_mtu = eth_change_mtu, -+ .ndo_set_mac_address = xgene_enet_set_mac_address, -+}; -+ -+static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata) -+{ -+ struct platform_device *pdev; -+ struct net_device *ndev; -+ struct device *dev; -+ struct resource *res; -+ void *base_addr; -+ const char *mac; -+ int ret; -+ -+ pdev = pdata->pdev; -+ dev = &pdev->dev; -+ ndev = pdata->ndev; -+ -+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "enet_csr"); -+ if (!res) { -+ dev_err(dev, "Resource enet_csr not defined\n"); -+ return -ENODEV; -+ } -+ pdata->base_addr = devm_ioremap_resource(dev, res); -+ if (IS_ERR(pdata->base_addr)) { -+ dev_err(dev, "Unable to retrieve ENET Port CSR region\n"); -+ return PTR_ERR(pdata->base_addr); -+ } -+ -+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ring_csr"); -+ if (!res) { -+ dev_err(dev, "Resource ring_csr not defined\n"); -+ return -ENODEV; -+ } -+ pdata->ring_csr_addr = devm_ioremap_resource(dev, res); -+ if (IS_ERR(pdata->ring_csr_addr)) { -+ dev_err(dev, "Unable to retrieve ENET Ring CSR region\n"); -+ return PTR_ERR(pdata->ring_csr_addr); -+ } -+ -+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ring_cmd"); -+ if (!res) { -+ dev_err(dev, "Resource ring_cmd not defined\n"); -+ return -ENODEV; -+ } -+ pdata->ring_cmd_addr = devm_ioremap_resource(dev, res); -+ if (IS_ERR(pdata->ring_cmd_addr)) { -+ dev_err(dev, "Unable to retrieve ENET Ring command region\n"); -+ return PTR_ERR(pdata->ring_cmd_addr); -+ } -+ -+ ret = platform_get_irq(pdev, 0); -+ if (ret <= 0) { -+ dev_err(dev, "Unable to get ENET Rx IRQ\n"); -+ ret = ret ? : -ENXIO; -+ return ret; -+ } -+ pdata->rx_irq = ret; -+ -+ mac = of_get_mac_address(dev->of_node); -+ if (mac) -+ memcpy(ndev->dev_addr, mac, ndev->addr_len); -+ else -+ eth_hw_addr_random(ndev); -+ memcpy(ndev->perm_addr, ndev->dev_addr, ndev->addr_len); -+ -+ pdata->phy_mode = of_get_phy_mode(pdev->dev.of_node); -+ if (pdata->phy_mode < 0) { -+ dev_err(dev, "Incorrect phy-connection-type in DTS\n"); -+ return -EINVAL; -+ } -+ -+ pdata->clk = devm_clk_get(&pdev->dev, NULL); -+ ret = IS_ERR(pdata->clk); -+ if (IS_ERR(pdata->clk)) { -+ dev_err(&pdev->dev, "can't get clock\n"); -+ ret = PTR_ERR(pdata->clk); -+ return ret; -+ } -+ -+ base_addr = pdata->base_addr; -+ pdata->eth_csr_addr = base_addr + BLOCK_ETH_CSR_OFFSET; -+ pdata->eth_ring_if_addr = base_addr + BLOCK_ETH_RING_IF_OFFSET; -+ pdata->eth_diag_csr_addr = base_addr + BLOCK_ETH_DIAG_CSR_OFFSET; -+ pdata->mcx_mac_addr = base_addr + BLOCK_ETH_MAC_OFFSET; -+ pdata->mcx_stats_addr = base_addr + BLOCK_ETH_STATS_OFFSET; -+ pdata->mcx_mac_csr_addr = base_addr + BLOCK_ETH_MAC_CSR_OFFSET; -+ pdata->rx_buff_cnt = NUM_PKT_BUF; -+ -+ return ret; -+} -+ -+static int xgene_enet_init_hw(struct xgene_enet_pdata *pdata) -+{ -+ struct net_device *ndev = pdata->ndev; -+ struct xgene_enet_desc_ring *buf_pool; -+ u16 dst_ring_num; -+ int ret; -+ -+ xgene_gmac_tx_disable(pdata); -+ xgene_gmac_rx_disable(pdata); -+ -+ ret = xgene_enet_create_desc_rings(ndev); -+ if (ret) { -+ netdev_err(ndev, "Error in ring configuration\n"); -+ return ret; -+ } -+ -+ /* setup buffer pool */ -+ buf_pool = pdata->rx_ring->buf_pool; -+ xgene_enet_init_bufpool(buf_pool); -+ ret = xgene_enet_refill_bufpool(buf_pool, pdata->rx_buff_cnt); -+ if (ret) -+ return ret; -+ -+ dst_ring_num = xgene_enet_dst_ring_num(pdata->rx_ring); -+ xgene_enet_cle_bypass(pdata, dst_ring_num, buf_pool->id); -+ -+ return ret; -+} -+ -+static int xgene_enet_probe(struct platform_device *pdev) -+{ -+ struct net_device *ndev; -+ struct xgene_enet_pdata *pdata; -+ struct device *dev = &pdev->dev; -+ struct napi_struct *napi; -+ int ret; -+ -+ ndev = alloc_etherdev(sizeof(struct xgene_enet_pdata)); -+ if (!ndev) -+ return -ENOMEM; -+ -+ pdata = netdev_priv(ndev); -+ -+ pdata->pdev = pdev; -+ pdata->ndev = ndev; -+ SET_NETDEV_DEV(ndev, dev); -+ platform_set_drvdata(pdev, pdata); -+ ndev->netdev_ops = &xgene_ndev_ops; -+ xgene_enet_set_ethtool_ops(ndev); -+ ndev->features |= NETIF_F_IP_CSUM | -+ NETIF_F_GSO | -+ NETIF_F_GRO; -+ -+ ret = xgene_enet_get_resources(pdata); -+ if (ret) -+ goto err; -+ -+ xgene_enet_reset(pdata); -+ xgene_gmac_init(pdata, SPEED_1000); -+ -+ spin_lock_init(&pdata->stats_lock); -+ ret = register_netdev(ndev); -+ if (ret) { -+ netdev_err(ndev, "Failed to register netdev\n"); -+ goto err; -+ } -+ -+ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)); -+ if (ret) { -+ netdev_err(ndev, "No usable DMA configuration\n"); -+ goto err; -+ } -+ -+ ret = xgene_enet_init_hw(pdata); -+ if (ret) -+ goto err; -+ -+ napi = &pdata->rx_ring->napi; -+ netif_napi_add(ndev, napi, xgene_enet_napi, NAPI_POLL_WEIGHT); -+ ret = xgene_enet_mdio_config(pdata); -+ -+ return ret; -+err: -+ free_netdev(ndev); -+ return ret; -+} -+ -+static int xgene_enet_remove(struct platform_device *pdev) -+{ -+ struct xgene_enet_pdata *pdata; -+ struct net_device *ndev; -+ -+ pdata = platform_get_drvdata(pdev); -+ ndev = pdata->ndev; -+ -+ xgene_gmac_rx_disable(pdata); -+ xgene_gmac_tx_disable(pdata); -+ -+ netif_napi_del(&pdata->rx_ring->napi); -+ xgene_enet_mdio_remove(pdata); -+ xgene_enet_delete_desc_rings(pdata); -+ unregister_netdev(ndev); -+ xgene_gport_shutdown(pdata); -+ free_netdev(ndev); -+ -+ return 0; -+} -+ -+static struct of_device_id xgene_enet_match[] = { -+ {.compatible = "apm,xgene-enet",}, -+ {}, -+}; -+ -+MODULE_DEVICE_TABLE(of, xgene_enet_match); -+ -+static struct platform_driver xgene_enet_driver = { -+ .driver = { -+ .name = "xgene-enet", -+ .owner = THIS_MODULE, -+ .of_match_table = xgene_enet_match, -+ }, -+ .probe = xgene_enet_probe, -+ .remove = xgene_enet_remove, -+}; -+ -+module_platform_driver(xgene_enet_driver); -+ -+MODULE_DESCRIPTION("APM X-Gene SoC Ethernet driver"); -+MODULE_VERSION(XGENE_DRV_VERSION); -+MODULE_AUTHOR("Keyur Chudgar <kchudgar@apm.com>"); -+MODULE_LICENSE("GPL"); -diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.h b/drivers/net/ethernet/apm/xgene/xgene_enet_main.h -new file mode 100644 -index 0000000..f4f7e4a ---- /dev/null -+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.h -@@ -0,0 +1,107 @@ -+/* Applied Micro X-Gene SoC Ethernet Driver -+ * -+ * Copyright (c) 2014, Applied Micro Circuits Corporation -+ * Authors: Iyappan Subramanian <isubramanian@apm.com> -+ * Ravi Patel <rapatel@apm.com> -+ * Keyur Chudgar <kchudgar@apm.com> -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License as published by the -+ * Free Software Foundation; either version 2 of the License, or (at your -+ * option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program. If not, see <http://www.gnu.org/licenses/>. -+ */ -+ -+#ifndef __XGENE_ENET_MAIN_H__ -+#define __XGENE_ENET_MAIN_H__ -+ -+#include <linux/clk.h> -+#include <linux/of_platform.h> -+#include <linux/of_net.h> -+#include <linux/of_mdio.h> -+#include <linux/module.h> -+#include <net/ip.h> -+#include <linux/prefetch.h> -+#include <linux/if_vlan.h> -+#include <linux/phy.h> -+#include "xgene_enet_hw.h" -+ -+#define XGENE_DRV_VERSION "v1.0" -+#define XGENE_ENET_MAX_MTU 1536 -+#define SKB_BUFFER_SIZE (XGENE_ENET_MAX_MTU - NET_IP_ALIGN) -+#define NUM_PKT_BUF 64 -+#define NUM_BUFPOOL 32 -+ -+/* software context of a descriptor ring */ -+struct xgene_enet_desc_ring { -+ struct net_device *ndev; -+ u16 id; -+ u16 num; -+ u16 head; -+ u16 tail; -+ u16 slots; -+ u16 irq; -+ u32 size; -+ u32 state[NUM_RING_CONFIG]; -+ void __iomem *cmd_base; -+ void __iomem *cmd; -+ dma_addr_t dma; -+ u16 dst_ring_num; -+ u8 nbufpool; -+ struct sk_buff *(*rx_skb); -+ struct sk_buff *(*cp_skb); -+ enum xgene_enet_ring_cfgsize cfgsize; -+ struct xgene_enet_desc_ring *cp_ring; -+ struct xgene_enet_desc_ring *buf_pool; -+ struct napi_struct napi; -+ union { -+ void *desc_addr; -+ struct xgene_enet_raw_desc *raw_desc; -+ struct xgene_enet_raw_desc16 *raw_desc16; -+ }; -+}; -+ -+/* ethernet private data */ -+struct xgene_enet_pdata { -+ struct net_device *ndev; -+ struct mii_bus *mdio_bus; -+ struct phy_device *phy_dev; -+ int phy_speed; -+ struct clk *clk; -+ struct platform_device *pdev; -+ struct xgene_enet_desc_ring *tx_ring; -+ struct xgene_enet_desc_ring *rx_ring; -+ char *dev_name; -+ u32 rx_buff_cnt; -+ u32 tx_qcnt_hi; -+ u32 cp_qcnt_hi; -+ u32 cp_qcnt_low; -+ u32 rx_irq; -+ void __iomem *eth_csr_addr; -+ void __iomem *eth_ring_if_addr; -+ void __iomem *eth_diag_csr_addr; -+ void __iomem *mcx_mac_addr; -+ void __iomem *mcx_stats_addr; -+ void __iomem *mcx_mac_csr_addr; -+ void __iomem *base_addr; -+ void __iomem *ring_csr_addr; -+ void __iomem *ring_cmd_addr; -+ u32 phy_addr; -+ int phy_mode; -+ u32 speed; -+ u16 rm; -+ struct rtnl_link_stats64 stats; -+ /* statistics lock */ -+ spinlock_t stats_lock; -+}; -+ -+void xgene_enet_set_ethtool_ops(struct net_device *netdev); -+ -+#endif /* __XGENE_ENET_MAIN_H__ */ diff --git a/drivers/of/address.c b/drivers/of/address.c index e371825..5eaadae 100644 --- a/drivers/of/address.c diff --git a/kernel.spec b/kernel.spec index 3f3b43a32..51b6c549d 100644 --- a/kernel.spec +++ b/kernel.spec @@ -42,7 +42,7 @@ Summary: The Linux kernel # For non-released -rc kernels, this will be appended after the rcX and # gitX tags, so a 3 here would become part of release "0.rcX.gitX.3" # -%global baserelease 2 +%global baserelease 1 %global fedora_build %{baserelease} # base_sublevel is the kernel version we're starting with and patching @@ -69,7 +69,7 @@ Summary: The Linux kernel # The rc snapshot level %define rcrev 0 # The git snapshot level -%define gitrev 4 +%define gitrev 5 # Set rpm version accordingly %define rpmversion 3.%{upstream_sublevel}.0 %endif @@ -2246,6 +2246,9 @@ fi # ||----w | # || || %changelog +* Thu Aug 14 2014 Josh Boyer <jwboyer@fedoraproject.org> - 3.17.0-0.rc0.git5.1 +- Linux v3.16-10959-gf0094b28f303 + * Wed Aug 13 2014 Peter Robinson <pbrobinson@fedoraproject.org> - 3.17 ARMv7 updates - Cleanup some old removed options @@ -1,3 +1,3 @@ 5c569ed649a0c9711879f333e90c5386 linux-3.16.tar.xz 49868ce6467b35cd9ffea1120d129462 perf-man-3.16.tar.gz -3d73f74af21218bb2d563d706f5711eb patch-3.16-git4.xz +0a791f9881b553e6c668fccb865a7f46 patch-3.16-git5.xz |