[openwrt/openwrt] kernel: add Intel/Lantiq VRX518 TC driver
LEDE Commits
lede-commits at lists.infradead.org
Mon Jan 16 15:42:33 PST 2023
dangole pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/474bbe23b7ec72ba84b9b7c91e17a69f58bd88b2
commit 474bbe23b7ec72ba84b9b7c91e17a69f58bd88b2
Author: Martin Schiller <ms.3headeddevs at gmail.com>
AuthorDate: Wed Aug 21 08:36:05 2019 +0200
kernel: add Intel/Lantiq VRX518 TC driver
This driver version is also included in Intel UGW 8.5.2.10.
Signed-off-by: Martin Schiller <ms.3headeddevs at gmail.com>
[updated for kernel 5.10]
Signed-off-by: Jan Hoffmann <jan at 3e8.eu>
[update to 1.5.12.4, switch to tag tarball]
Signed-off-by: Andre Heider <a.heider at gmail.com>
[add working software data path]
Signed-off-by: Jan Hoffmann <jan at 3e8.eu>
Signed-off-by: Andre Heider <a.heider at gmail.com>
---
package/kernel/lantiq/vrx518_tc/Makefile | 74 ++
.../lantiq/vrx518_tc/patches/100-compat.patch | 859 +++++++++++++
.../lantiq/vrx518_tc/patches/200-swplat.patch | 1356 ++++++++++++++++++++
.../lantiq/vrx518_tc/patches/201-desc-length.patch | 342 +++++
.../kernel/lantiq/vrx518_tc/patches/202-napi.patch | 423 ++++++
.../kernel/lantiq/vrx518_tc/patches/203-dbg.patch | 120 ++
6 files changed, 3174 insertions(+)
diff --git a/package/kernel/lantiq/vrx518_tc/Makefile b/package/kernel/lantiq/vrx518_tc/Makefile
new file mode 100644
index 0000000000..fde4c07e44
--- /dev/null
+++ b/package/kernel/lantiq/vrx518_tc/Makefile
@@ -0,0 +1,74 @@
+#
+# Copyright (C) 2019 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/kernel.mk
+
+PKG_NAME:=vrx518_tc
+PKG_VERSION:=1.5.12.4
+PKG_RELEASE:=$(AUTORELEASE)
+PKG_BASE_NAME:=vrx518_tc_drv
+
+UGW_VERSION=8.5.2.10
+UGW_BASENAME=$(PKG_BASE_NAME)-ugw_$(UGW_VERSION)
+
+PKG_SOURCE:=$(UGW_BASENAME).tar.bz2
+PKG_SOURCE_URL:=https://gitlab.com/prpl-foundation/intel/$(PKG_BASE_NAME)/-/archive/ugw_$(UGW_VERSION)/
+PKG_HASH:=0c5bb0f9a06dc4cc4bbb8b930d01a673daba1b66615e8328818356d32c8f1548
+PKG_BUILD_DIR:=$(KERNEL_BUILD_DIR)/$(UGW_BASENAME)
+PKG_LICENSE:=GPL-2.0
+PKG_LICENSE_FILES:=LICENSE
+
+include $(INCLUDE_DIR)/package.mk
+
+PLAT_DIR:=dcdp
+PKG_EXTMOD_SUBDIRS:=$(PLAT_DIR)
+
+# TODO this driver depends on the vrx518 ppe firmware, add this dependency if
+# that ever gets a compatible license
+define KernelPackage/$(PKG_NAME)
+ SECTION:=sys
+ CATEGORY:=Kernel modules
+ SUBMENU:=Network Devices
+ TITLE:=VRX518 TC driver
+ KCONFIG:= \
+ CONFIG_ATM_LANE=m \
+ CONFIG_ATM_MPOA=m \
+ CONFIG_ATM_MPOA_INTEL_DSL_PHY_SUPPORT=y
+ DEPENDS:=@TARGET_ipq40xx +kmod-vrx518_ep +kmod-crypto-md5 +kmod-atm +kmod-ipoa +br2684ctl
+ AUTOLOAD:=$(call AutoLoad,27,vrx518_tc)
+ FILES:=$(PKG_BUILD_DIR)/$(PLAT_DIR)/$(PKG_NAME).ko
+endef
+
+define KernelPackage/$(PKG_NAME)/description
+ VRX518 TC Driver
+endef
+
+define Build/Prepare
+ $(PKG_UNPACK)
+ # eliminate all carriage returns / convert to unix encoding
+ (cd $(PKG_BUILD_DIR) && find . -type f -exec sed -i 's/\r//g' {} +)
+ $(Build/Patch)
+endef
+
+define Build/InstallDev
+ $(INSTALL_DIR) $(1)/usr/include/net/
+ $(CP) $(PKG_BUILD_DIR)/$(PLAT_DIR)/inc/dsl_tc.h $(1)/usr/include/net/
+endef
+
+EXTRA_CFLAGS:= \
+ -I$(STAGING_DIR)/usr/include
+
+define Build/Compile
+ $(KERNEL_MAKE) \
+ M="$(PKG_BUILD_DIR)/$(PLAT_DIR)" \
+ EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \
+ FEATURE_VRX518_CPU=y \
+ modules
+endef
+
+$(eval $(call KernelPackage,$(PKG_NAME)))
diff --git a/package/kernel/lantiq/vrx518_tc/patches/100-compat.patch b/package/kernel/lantiq/vrx518_tc/patches/100-compat.patch
new file mode 100644
index 0000000000..2c92912ade
--- /dev/null
+++ b/package/kernel/lantiq/vrx518_tc/patches/100-compat.patch
@@ -0,0 +1,859 @@
+--- a/dcdp/atm_tc.c
++++ b/dcdp/atm_tc.c
+@@ -44,9 +44,9 @@
+ #include <linux/atmioc.h>
+ #include <linux/skbuff.h>
+ #include "inc/dsl_tc.h"
+-#include <net/datapath_proc_api.h>
++// #include <net/datapath_proc_api.h>
+ #include <linux/atm.h>
+-#include <net/datapath_api.h>
++// #include <net/datapath_api.h>
+ #include <net/dc_ep.h>
+ #include<linux/sched.h>
+ #include<linux/kthread.h>
+@@ -730,20 +730,16 @@ static void atm_aca_init(struct atm_priv
+ ACA_TXOUT_EN | ACA_RXIN_EN | ACA_RXOUT_EN, 1);
+ }
+
+-static int print_datetime(char *buffer, const struct timespec *datetime)
++static int print_datetime(char *buffer, const struct timespec64 *datetime)
+ {
+- struct timeval tv;
+ struct tm nowtm;
+ char tmbuf[64];
+- s64 nsec;
+
+ if (buffer == NULL || datetime == NULL) {
+ pr_err("%s : Invalid arguments\n", __func__);
+ return -1;
+ }
+- nsec = timespec_to_ns(datetime);
+- tv = ns_to_timeval(nsec);
+- time_to_tm(tv.tv_sec, 0, &nowtm);
++ time64_to_tm(datetime->tv_sec, 0, &nowtm);
+ memset(tmbuf, 0, 64);
+
+ snprintf(tmbuf, sizeof(tmbuf), "%ld-%d-%d %d:%d:%d",
+@@ -753,7 +749,7 @@ static int print_datetime(char *buffer,
+ nowtm.tm_hour,
+ nowtm.tm_min,
+ nowtm.tm_sec);
+- snprintf(buffer, sizeof(buffer), "%s.%06d", tmbuf, (int)tv.tv_usec);
++ snprintf(buffer, sizeof(buffer), "%s.%06d", tmbuf, (int)datetime->tv_nsec / 1000);
+
+ return 0;
+ }
+@@ -1313,7 +1309,7 @@ static int ppe_send(struct atm_vcc *vcc,
+ /* assume LLC header + Ethernet ID: 6+2 */
+ if ((priv->conn[conn].mpoa_type == MPOA_TYPE_EOA_WO_FCS) ||
+ (priv->conn[conn].mpoa_type == MPOA_TYPE_EOA_W_FCS)) {
+- if (__skb_put_padto(skb, ETH_ZLEN + 8))
++ if (__skb_put_padto(skb, ETH_ZLEN + 8, false))
+ goto CHECK_SHOWTIME_FAIL;
+ }
+
+@@ -1418,7 +1414,7 @@ int ppe_send_oam(struct atm_vcc *vcc, vo
+ struct atm_priv *priv = g_atm_tc;
+ struct sk_buff *skb;
+ unsigned int conn;
+- dp_subif_t dp_id;
++// dp_subif_t dp_id;
+ #ifdef OAM_FIX_GRX750
+ unsigned char *dest_cell;
+ #endif
+@@ -1465,8 +1461,8 @@ int ppe_send_oam(struct atm_vcc *vcc, vo
+ priv->tc_priv->param.oam_prio = 0;
+ qid = priv->conn[conn].prio_queue_map[priv->tc_priv->param.oam_prio];
+ vid = priv->conn[conn].subif_id;
+- dp_id.subif = (vid & (~0x7f)) |
+- ATM_DESC_SUBIF_ID(qid, mpoa_pt, mpoa_type);
++// dp_id.subif = (vid & (~0x7f)) |
++// ATM_DESC_SUBIF_ID(qid, mpoa_pt, mpoa_type);
+ #ifdef OAM_FIX_GRX750
+ dest_cell = kmalloc(CELL_SIZE, GFP_KERNEL);
+ if (dest_cell == NULL) {
+@@ -1494,18 +1490,18 @@ int ppe_send_oam(struct atm_vcc *vcc, vo
+ #else
+ memcpy(skb->data, cell, CELL_SIZE);
+ #endif
+- /* SET SUBIFID */
+- skb->DW0 = (skb->DW0 & ~0x7FFF) | dp_id.subif;
+- skb->dev = priv->conn[conn].dev;
+- tc_dbg(priv->tc_priv, MSG_TX, "conn: %d, dev name: %s, qid: 0x%x len:%d\n",
+- conn, skb->dev->name, dp_id.subif, skb->len);
+- #ifdef OAM_FIX_GRX750
+- if (priv->tc_priv->tc_ops.send(NULL,
+- skb, dp_id.subif, ATM_OAM_PKT) == 0) {
+- #else
++// /* SET SUBIFID */
++// skb->DW0 = (skb->DW0 & ~0x7FFF) | dp_id.subif;
++// skb->dev = priv->conn[conn].dev;
++// tc_dbg(priv->tc_priv, MSG_TX, "conn: %d, dev name: %s, qid: 0x%x len:%d\n",
++// conn, skb->dev->name, dp_id.subif, skb->len);
++// #ifdef OAM_FIX_GRX750
++// if (priv->tc_priv->tc_ops.send(NULL,
++// skb, dp_id.subif, ATM_OAM_PKT) == 0) {
++// #else
+ if (priv->tc_priv->tc_ops.send(NULL,
+ skb, qid, ATM_OAM_PKT) == 0) {
+- #endif
++// #endif
+ priv->stats.oam_tx_pkts++;
+ priv->stats.oam_tx_bytes += skb->len;
+ priv->conn[conn].stats.oam_tx_pkts++;
+@@ -1604,7 +1600,7 @@ static void oam_push(struct atm_priv *pr
+ conn = -1; /* invalid */
+ if (conn_valid(conn) && priv->conn[conn].vcc != NULL) {
+ vcc = priv->conn[conn].vcc;
+- priv->conn[conn].access_time = current_kernel_time();
++ ktime_get_coarse_ts64(&priv->conn[conn].access_time);
+
+ tc_dbg(priv->tc_priv, MSG_OAM_RX, "conn=%d, vpi: %d, vci:%d\n",
+ conn, header->vpi, header->vci);
+@@ -2547,30 +2543,29 @@ static void ppe_atm_fw_hw_init(struct at
+ static int atm_dev_init(struct atm_priv *atm_priv, int ep_id)
+ {
+ int i, err;
+- struct atm_dev *dev;
+- dev = atm_dev_register(g_atm_dev_name,
+- atm_priv->tc_priv->ep_dev[ep_id].dev,
+- &g_ppe_atm_ops, -1, NULL);
+- if (!dev) {
+- err = -EIO;
+- goto ATM_DEV_REGISTER_FAIL;
+- }
+- dev->ci_range.vpi_bits = 8;
+- dev->ci_range.vci_bits = 16;
+- /* assume 3200 cell rate
+- * before get real information
+- */
+- dev->link_rate =
+- DEFAULT_CELL_RATE;
+- dev->dev_data = atm_priv;
+- dev->phy_data =
+- (void *)(unsigned long)0;
+
+ for (i = 0; i < ATM_PORT_NUMBER; i++) {
+ if (atm_priv->port[i].dev)
+ continue;
+ atm_priv->port[i].tx_max_cell_rate = DEFAULT_CELL_RATE;
+- atm_priv->port[i].dev = dev;
++ atm_priv->port[i].dev = atm_dev_register(g_atm_dev_name,
++ atm_priv->tc_priv->ep_dev[ep_id].dev,
++ &g_ppe_atm_ops, -1, NULL);
++ if (!atm_priv->port[i].dev) {
++ err = -EIO;
++ goto ATM_DEV_REGISTER_FAIL;
++ } else {
++ atm_priv->port[i].dev->ci_range.vpi_bits = 8;
++ atm_priv->port[i].dev->ci_range.vci_bits = 16;
++ /* assume 3200 cell rate
++ * before get real information
++ */
++ atm_priv->port[i].dev->link_rate =
++ DEFAULT_CELL_RATE;
++ atm_priv->port[i].dev->dev_data = atm_priv;
++ atm_priv->port[i].dev->phy_data =
++ (void *)(unsigned long)i;
++ }
+ }
+ //TODO : check for SoC PMAC, current fix
+ #ifdef CONFIG_SOC_TYPE_XWAY
+@@ -2985,7 +2980,8 @@ static unsigned int atm_get_pvc_id(struc
+ return -EINVAL;
+ }
+
+- return (skb->DW0 >> 3) & 0xF;
++// return (skb->DW0 >> 3) & 0xF;
++ return 1;
+ }
+
+ static int atm_get_qid_by_vcc(struct net_device *dev, struct sk_buff *skb,
+@@ -3292,7 +3288,7 @@ static void atm_push(struct net_device *
+ += skb->len;
+ } else
+ priv->stats.aal5_rx_errors++;
+- priv->conn[conn].access_time = current_kernel_time();
++ ktime_get_coarse_ts64(&priv->conn[conn].access_time);
+ spin_unlock_bh(&priv->atm_lock);
+
+ vcc->push(vcc, skb);
+--- a/dcdp/inc/atm_tc.h
++++ b/dcdp/inc/atm_tc.h
+@@ -449,7 +449,7 @@ struct atm_port {
+ struct atm_pvc {
+ struct atm_vcc *vcc; /* opened VCC */
+ struct net_device *dev; /* net device associated with atm VCC */
+- struct timespec access_time; /* time when last user cell arrived */
++ struct timespec64 access_time; /* time when last user cell arrived */
+ int prio_queue_map[ATM_PRIO_Q_NUM];
+ unsigned int prio_tx_packets[ATM_PRIO_Q_NUM];
+ struct atm_stats stats;
+--- a/dcdp/inc/tc_api.h
++++ b/dcdp/inc/tc_api.h
+@@ -196,19 +196,6 @@ static inline void aca_ring_addr_init(st
+ ring->aca_cnt_phyaddr = ep_dev->phy_membase + addr;
+ }
+
+-static inline int __skb_put_padto(struct sk_buff *skb, unsigned int len)
+-{
+- unsigned int size = skb->len;
+-
+- if (unlikely(size < len)) {
+- len -= size;
+- if (skb_pad(skb, len))
+- return -ENOMEM;
+- __skb_put(skb, len);
+- }
+- return 0;
+-}
+-
+ extern int showtime_stat(struct tc_priv *);
+ extern void dump_skb_info(struct tc_priv *, struct sk_buff *, u32);
+ extern void *tc_buf_alloc(void *, size_t, u32 *,
+--- a/dcdp/inc/tc_proc.h
++++ b/dcdp/inc/tc_proc.h
+@@ -23,6 +23,8 @@
+ #ifndef __TC_PROC_H__
+ #define __TC_PROC_H__
+
++#include <linux/version.h>
++
+ #define TC_PROC_DIR "driver/vrx518"
+ #define TC_PROC_ATM_DIR "atm"
+ #define TC_PROC_PTM_DIR "ptm"
+@@ -41,7 +43,7 @@ enum {
+ struct tc_proc_list {
+ char proc_name[32];
+ umode_t mode;
+- const struct file_operations *fops;
++ const struct proc_ops *fops;
+ int is_folder;
+ };
+
+--- a/dcdp/ptm_tc.c
++++ b/dcdp/ptm_tc.c
+@@ -39,7 +39,7 @@
+ #include <linux/seq_file.h>
+ #include <linux/printk.h>
+ #include <linux/etherdevice.h>
+-#include <net/datapath_proc_api.h>
++// #include <net/datapath_proc_api.h>
+
+ #include "inc/tc_main.h"
+ #include "inc/reg_addr.h"
+@@ -182,8 +182,8 @@ static int ptm_get_qid(struct net_device
+ return qid;
+ }
+
+-static struct rtnl_link_stats64 *ptm_get_stats(struct net_device *dev,
+- struct rtnl_link_stats64 *storage)
++static void ptm_get_stats(struct net_device *dev,
++ struct rtnl_link_stats64 *storage)
+ {
+ struct ptm_priv *ptm_tc = netdev_priv(dev);
+
+@@ -191,8 +191,6 @@ static struct rtnl_link_stats64 *ptm_get
+ memcpy(storage, &ptm_tc->stats64, sizeof(ptm_tc->stats64));
+ else
+ storage->tx_errors += ptm_tc->stats64.tx_errors;
+-
+- return storage;
+ }
+
+ static int ptm_set_mac_address(struct net_device *dev, void *p)
+@@ -209,7 +207,7 @@ static int ptm_set_mac_address(struct ne
+ return 0;
+ }
+
+-static void ptm_tx_timeout(struct net_device *dev)
++static void ptm_tx_timeout(struct net_device *dev, unsigned int txqueue)
+ {
+ struct ptm_priv *ptm_tc = netdev_priv(dev);
+
+@@ -503,7 +501,7 @@ static int ptm_xmit(struct sk_buff *skb,
+ if (!showtime_stat(ptm_tc->tc_priv))
+ goto PTM_XMIT_DROP;
+
+- if (__skb_put_padto(skb, ETH_ZLEN))
++ if (__skb_put_padto(skb, ETH_ZLEN, false))
+ goto PTM_XMIT_DROP;
+
+ dump_skb_info(ptm_tc->tc_priv, skb, (MSG_TX | MSG_TXDATA));
+@@ -632,11 +630,8 @@ static int ptm_dev_init(struct tc_priv *
+ struct ptm_priv *ptm_tc;
+ const char macaddr[ETH_ALEN]
+ = {0xAC, 0x9A, 0x96, 0x11, 0x22, 0x33};
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(4,8,0)
+- dev = alloc_netdev_mq(sizeof(*ptm_tc), "ptm%d", ptm_setup, 4);
+-#else
+- dev = alloc_netdev_mq(sizeof(*ptm_tc), "ptm%d", NET_NAME_ENUM, ptm_setup, 4);
+-#endif
++
++ dev = alloc_netdev_mq(sizeof(*ptm_tc), "dsl%d", NET_NAME_ENUM, ptm_setup, 4);
+ if (!dev) {
+ tc_dbg(tc_priv, MSG_INIT, "Cannot alloc net device\n");
+ return -ENOMEM;
+@@ -2103,7 +2098,6 @@ static int ptm_showtime_exit(const unsig
+ struct ptm_ep_priv *priv = tc_ep_priv(idx);
+ u32 stop = ACA_TXIN_EN;
+ struct dc_ep_dev *ep;
+- int i = 0;
+
+ tc_info(priv->tc_priv, MSG_EVENT, "Line[%d]: show time exit!\n", idx);
+ ep = priv->ep;
+--- a/dcdp/tc_api.c
++++ b/dcdp/tc_api.c
+@@ -52,18 +52,24 @@ static const char ppe_fw_name[] = "ppe_f
+ #define VRX518_PPE_FW_ID 0xB
+ #define MD5_LEN 16
+
++enum tc_multicast_groups {
++ TC_MCGRP,
++};
++
++/* TC message multicast group */
++static const struct genl_multicast_group tc_ml_grps[] = {
++ [TC_MCGRP] = { .name = TC_MCAST_GRP_NAME, },
++};
++
+ /* TC message genelink family */
+ static struct genl_family tc_gnl_family = {
+- .id = GENL_ID_GENERATE, /* To generate an id for the family*/
++// .id = GENL_ID_GENERATE, /* To generate an id for the family*/
+ .hdrsize = 0,
+ .name = TC_FAMILY_NAME, /*family name, used by userspace application*/
+ .version = 1, /*version number */
+ .maxattr = TC_A_MAX - 1,
+-};
+-
+-/* TC message multicast group */
+-static struct genl_multicast_group tc_ml_grp = {
+- .name = TC_MCAST_GRP_NAME,
++ .mcgrps = tc_ml_grps,
++ .n_mcgrps = ARRAY_SIZE(tc_ml_grps),
+ };
+
+ /**
+@@ -568,7 +574,8 @@ int tc_ntlk_msg_send(struct tc_priv *pri
+ nla_put_u32(skb, TC_A_LINENO, ln_no);
+
+ genlmsg_end(skb, msg_head);
+- ret = genlmsg_multicast(skb, pid, tc_ml_grp.id, GFP_KERNEL);
++ ret = genlmsg_multicast(&tc_gnl_family, skb, pid, TC_MCGRP,
++ GFP_KERNEL);
+ if (ret) {
+ tc_err(priv, MSG_EVENT, "Sent TC multicast message Fail!\n");
+ goto err1;
+@@ -590,21 +597,11 @@ int tc_gentlk_init(struct tc_priv *priv)
+ return ret;
+ }
+
+- ret = genl_register_mc_group(&tc_gnl_family, &tc_ml_grp);
+- if (ret) {
+- tc_err(priv, MSG_EVENT, "register mc group fail: %i, grp name: %s\n",
+- ret, tc_ml_grp.name);
+- genl_unregister_family(&tc_gnl_family);
+- return ret;
+- }
+-
+ return 0;
+ }
+
+ void tc_gentlk_exit(void)
+ {
+- /* unregister mc groups */
+- genl_unregister_mc_group(&tc_gnl_family, &tc_ml_grp);
+ /*unregister the family*/
+ genl_unregister_family(&tc_gnl_family);
+ }
+@@ -666,7 +663,7 @@ void dump_skb_info(struct tc_priv *tcpri
+ (u32)skb->end, skb->len);
+ tc_dbg(tcpriv, type,
+ "skb: clone: %d, users: %d\n",
+- skb->cloned, atomic_read(&skb->users));
++ skb->cloned, refcount_read(&skb->users));
+ tc_dbg(tcpriv, type,
+ "skb: nfrag: %d\n", skb_shinfo(skb)->nr_frags);
+
+@@ -936,7 +933,6 @@ static int fw_md5_check(struct tc_priv *
+ }
+
+ desc->tfm = md5;
+- desc->flags = 0;
+
+ ret = crypto_shash_init(desc);
+ if (ret) {
+--- a/dcdp/tc_proc.c
++++ b/dcdp/tc_proc.c
+@@ -22,7 +22,9 @@
+ *******************************************************************************/
+ #include <linux/fs.h>
+ #include <linux/seq_file.h>
+-#include <net/datapath_api.h>
++// #include <net/datapath_api.h>
++#include <linux/etherdevice.h>
++#include <linux/atmdev.h>
+ #include <net/genetlink.h>
+ #include <linux/time.h>
+ #include "inc/tc_main.h"
+@@ -353,7 +355,7 @@ static ssize_t mem_proc_write(struct fil
+ }
+ addr = set_val = repeat_cnt = 0;
+
+- if (!access_ok(VERIFY_READ, buf, count))
++ if (!access_ok(buf, count))
+ return -EFAULT;
+
+ len = count < sizeof(str) ? count : sizeof(str) - 1;
+@@ -450,13 +452,12 @@ static int proc_read_mem_seq_open(struct
+ return single_open(file, proc_read_mem, NULL);
+ }
+
+-static const struct file_operations mem_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_read_mem_seq_open,
+- .read = seq_read,
+- .llseek = seq_lseek,
+- .release = single_release,
+- .write = mem_proc_write,
++static const struct proc_ops mem_proc_fops = {
++ .proc_open = proc_read_mem_seq_open,
++ .proc_read = seq_read,
++ .proc_lseek = seq_lseek,
++ .proc_release = single_release,
++ .proc_write = mem_proc_write,
+ };
+
+ static ssize_t pp32_proc_write(struct file *file, const char __user *buf,
+@@ -748,13 +749,12 @@ static int proc_read_pp32_seq_open(struc
+ return single_open(file, proc_read_pp32, PDE_DATA(inode));
+ }
+
+-static const struct file_operations pp32_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_read_pp32_seq_open,
+- .read = seq_read,
+- .llseek = seq_lseek,
+- .release = single_release,
+- .write = pp32_proc_write,
++static const struct proc_ops pp32_proc_fops = {
++ .proc_open = proc_read_pp32_seq_open,
++ .proc_read = seq_read,
++ .proc_lseek = seq_lseek,
++ .proc_release = single_release,
++ .proc_write = pp32_proc_write,
+ };
+
+ static int proc_read_tc_cfg(struct seq_file *seq, void *v)
+@@ -865,13 +865,12 @@ static int proc_read_tc_cfg_seq_open(str
+ return single_open(file, proc_read_tc_cfg, PDE_DATA(inode));
+ }
+
+-static const struct file_operations tc_cfg_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_read_tc_cfg_seq_open,
+- .read = seq_read,
+- .llseek = seq_lseek,
+- .release = single_release,
+- .write = proc_write_cfg,
++static const struct proc_ops tc_cfg_proc_fops = {
++ .proc_open = proc_read_tc_cfg_seq_open,
++ .proc_read = seq_read,
++ .proc_lseek = seq_lseek,
++ .proc_release = single_release,
++ .proc_write = proc_write_cfg,
+ };
+
+ static ssize_t proc_write_dbg(struct file *file, const char __user *buf,
+@@ -951,13 +950,12 @@ static int proc_read_dbg_seq_open(struct
+ return single_open(file, proc_read_dbg, PDE_DATA(inode));
+ }
+
+-static const struct file_operations tc_dbg_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_read_dbg_seq_open,
+- .read = seq_read,
+- .write = proc_write_dbg,
+- .llseek = seq_lseek,
+- .release = single_release,
++static const struct proc_ops tc_dbg_proc_fops = {
++ .proc_open = proc_read_dbg_seq_open,
++ .proc_read = seq_read,
++ .proc_write = proc_write_dbg,
++ .proc_lseek = seq_lseek,
++ .proc_release = single_release,
+ };
+
+ static ssize_t proc_write_tc_switch(struct file *file, const char __user *buf,
+@@ -1018,11 +1016,11 @@ proc_tc_switch_help:
+ return count;
+ }
+
+-static const struct file_operations tc_switch_proc_fops = {
+- .owner = THIS_MODULE,
+- .write = proc_write_tc_switch,
+- .llseek = noop_llseek,
++static const struct proc_ops tc_switch_proc_fops = {
++ .proc_write = proc_write_tc_switch,
++ .proc_lseek = noop_llseek,
+ };
++
+ static ssize_t proc_write_show_time(struct file *file, const char __user *buf,
+ size_t count, loff_t *data)
+ {
+@@ -1077,10 +1075,9 @@ proc_show_time_help:
+ return count;
+ }
+
+-static const struct file_operations tc_show_time_proc_fops = {
+- .owner = THIS_MODULE,
+- .write = proc_write_show_time,
+- .llseek = noop_llseek,
++static const struct proc_ops tc_show_time_proc_fops = {
++ .proc_write = proc_write_show_time,
++ .proc_lseek = noop_llseek,
+ };
+
+ static int proc_read_ver(struct seq_file *seq, void *v)
+@@ -1128,12 +1125,11 @@ static int proc_read_ver_seq_open(struct
+ return single_open(file, proc_read_ver, PDE_DATA(inode));
+ }
+
+-static const struct file_operations tc_ver_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_read_ver_seq_open,
+- .read = seq_read,
+- .llseek = seq_lseek,
+- .release = single_release,
++static const struct proc_ops tc_ver_proc_fops = {
++ .proc_open = proc_read_ver_seq_open,
++ .proc_read = seq_read,
++ .proc_lseek = seq_lseek,
++ .proc_release = single_release,
+ };
+
+ static int proc_read_soc(struct seq_file *seq, void *v)
+@@ -1142,20 +1138,18 @@ static int proc_read_soc(struct seq_file
+
+ tcpriv = (struct tc_priv *)seq->private;
+
+-#if 0
+ seq_printf(seq, "TXIN Base: 0x%08x, TXIN num: %d\n",
+- tcpriv->cfg.txin_dbase,
+- tcpriv->cfg.txin_dnum);
++ tcpriv->cfg.txin.soc_phydbase,
++ tcpriv->cfg.txin.soc_dnum);
+ seq_printf(seq, "TXOUT Base: 0x%08x, TXOUT num: %d\n",
+- tcpriv->cfg.txout_dbase,
+- tcpriv->cfg.txout_dnum);
++ tcpriv->cfg.txout.soc_phydbase,
++ tcpriv->cfg.txout.soc_dnum);
+ seq_printf(seq, "RXIN Base: 0x%08x, RXIN num: %d\n",
+- tcpriv->cfg.rxin_dbase,
+- tcpriv->cfg.rxin_dnum);
++ tcpriv->cfg.rxin.soc_phydbase,
++ tcpriv->cfg.rxin.soc_dnum);
+ seq_printf(seq, "RXOUT Base: 0x%08x, RXOUT num: %d\n",
+- tcpriv->cfg.rxout_dbase,
+- tcpriv->cfg.rxout_dnum);
+-#endif
++ tcpriv->cfg.rxout.soc_phydbase,
++ tcpriv->cfg.rxout.soc_dnum);
+
+ return 0;
+ }
+@@ -1165,15 +1159,13 @@ static int proc_read_soc_seq_open(struct
+ return single_open(file, proc_read_soc, PDE_DATA(inode));
+ }
+
+-static const struct file_operations tc_soc_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_read_soc_seq_open,
+- .read = seq_read,
+- .llseek = seq_lseek,
+- .release = single_release,
++static const struct proc_ops tc_soc_proc_fops = {
++ .proc_open = proc_read_soc_seq_open,
++ .proc_read = seq_read,
++ .proc_lseek = seq_lseek,
++ .proc_release = single_release,
+ };
+
+-
+ static struct tc_proc_list tc_procs[] = {
+ {TC_PROC_DIR, 0, NULL, 1},
+ {"cfg", 0644, &tc_cfg_proc_fops, 0},
+@@ -1241,13 +1233,12 @@ static int proc_read_ptm_wanmib_seq_open
+ return single_open(file, proc_read_ptm_wanmib, PDE_DATA(inode));
+ }
+
+-static const struct file_operations ptm_wanmib_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_read_ptm_wanmib_seq_open,
+- .read = seq_read,
+- .write = proc_write_ptm_wanmib,
+- .llseek = seq_lseek,
+- .release = single_release,
++static const struct proc_ops ptm_wanmib_proc_fops = {
++ .proc_open = proc_read_ptm_wanmib_seq_open,
++ .proc_read = seq_read,
++ .proc_write = proc_write_ptm_wanmib,
++ .proc_lseek = seq_lseek,
++ .proc_release = single_release,
+ };
+
+ static int proc_ptm_read_cfg(struct seq_file *seq, void *v)
+@@ -1300,7 +1291,7 @@ static ssize_t ptm_cfg_proc_write(struct
+ return -EINVAL;
+ }
+
+- if (!access_ok(VERIFY_READ, buf, count))
++ if (!access_ok(buf, count))
+ return -EFAULT;
+
+ len = count < sizeof(str) ? count : sizeof(str) - 1;
+@@ -1343,13 +1334,12 @@ proc_ptm_cfg_help:
+ }
+
+
+-static const struct file_operations ptm_cfg_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_read_cfg_seq_open,
+- .read = seq_read,
+- .llseek = seq_lseek,
+- .write = ptm_cfg_proc_write,
+- .release = single_release,
++static const struct proc_ops ptm_cfg_proc_fops = {
++ .proc_open = proc_read_cfg_seq_open,
++ .proc_read = seq_read,
++ .proc_lseek = seq_lseek,
++ .proc_write = ptm_cfg_proc_write,
++ .proc_release = single_release,
+ };
+
+ static ssize_t proc_ptm_write_prio(struct file *file, const char __user *buf,
+@@ -1455,13 +1445,12 @@ static int proc_ptm_read_prio_seq_open(s
+ return single_open(file, proc_ptm_read_prio, PDE_DATA(inode));
+ }
+
+-static const struct file_operations ptm_prio_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_ptm_read_prio_seq_open,
+- .read = seq_read,
+- .llseek = seq_lseek,
+- .write = proc_ptm_write_prio,
+- .release = single_release,
++static const struct proc_ops ptm_prio_proc_fops = {
++ .proc_open = proc_ptm_read_prio_seq_open,
++ .proc_read = seq_read,
++ .proc_lseek = seq_lseek,
++ .proc_write = proc_ptm_write_prio,
++ .proc_release = single_release,
+ };
+
+ static int proc_ptm_read_bond_seq_open(struct inode *inode, struct file *file)
+@@ -1469,12 +1458,11 @@ static int proc_ptm_read_bond_seq_open(s
+ return single_open(file, proc_ptm_read_bond, PDE_DATA(inode));
+ }
+
+-static const struct file_operations ptm_bond_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_ptm_read_bond_seq_open,
+- .read = seq_read,
+- .llseek = seq_lseek,
+- .release = single_release,
++static const struct proc_ops ptm_bond_proc_fops = {
++ .proc_open = proc_ptm_read_bond_seq_open,
++ .proc_read = seq_read,
++ .proc_lseek = seq_lseek,
++ .proc_release = single_release,
+ };
+
+ static int proc_ptm_read_bondmib_seq_open(struct inode *inode,
+@@ -1483,13 +1471,12 @@ static int proc_ptm_read_bondmib_seq_ope
+ return single_open(file, proc_ptm_read_bondmib, PDE_DATA(inode));
+ }
+
+-static const struct file_operations ptm_bondmib_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_ptm_read_bondmib_seq_open,
+- .read = seq_read,
+- .llseek = seq_lseek,
+- .write = proc_ptm_write_bondmib,
+- .release = single_release,
++static const struct proc_ops ptm_bondmib_proc_fops = {
++ .proc_open = proc_ptm_read_bondmib_seq_open,
++ .proc_read = seq_read,
++ .proc_lseek = seq_lseek,
++ .proc_write = proc_ptm_write_bondmib,
++ .proc_release = single_release,
+ };
+
+ struct fwdbg_t {
+@@ -1910,14 +1897,14 @@ static int proc_read_fwdbg_seq_open(stru
+ {
+ return single_open(file, proc_read_fwdbg, NULL);
+ }
+-static const struct file_operations fwdbg_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_read_fwdbg_seq_open,
+- .read = seq_read,
+- .write = proc_write_fwdbg_seq,
+- .llseek = seq_lseek,
+- .release = single_release,
++static const struct proc_ops fwdbg_proc_fops = {
++ .proc_open = proc_read_fwdbg_seq_open,
++ .proc_read = seq_read,
++ .proc_write = proc_write_fwdbg_seq,
++ .proc_lseek = seq_lseek,
++ .proc_release = single_release,
+ };
++
+ static struct tc_proc_list ptm_sl_procs[] = {
+ {TC_PROC_PTM_DIR, 0, NULL, 1},
+ {"mem", 0644, &mem_proc_fops, 0},
+@@ -2077,7 +2064,7 @@ static ssize_t atm_cfg_proc_write(struct
+
+ priv = (struct atm_priv *)PDE_DATA(file_inode(file));
+
+- if (!access_ok(VERIFY_READ, buf, count))
++ if (!access_ok(buf, count))
+ return -EFAULT;
+
+ len = count < sizeof(str) ? count : sizeof(str) - 1;
+@@ -2119,13 +2106,12 @@ proc_atm_cfg_help:
+ return count;
+ }
+
+-static const struct file_operations atm_cfg_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_read_atm_cfg_seq_open,
+- .read = seq_read,
+- .write = atm_cfg_proc_write,
+- .llseek = seq_lseek,
+- .release = single_release,
++static const struct proc_ops atm_cfg_proc_fops = {
++ .proc_open = proc_read_atm_cfg_seq_open,
++ .proc_read = seq_read,
++ .proc_write = atm_cfg_proc_write,
++ .proc_lseek = seq_lseek,
++ .proc_release = single_release,
+ };
+
+ static ssize_t proc_write_atm_wanmib(struct file *file, const char __user *buf,
+@@ -2173,13 +2159,12 @@ static int proc_read_atm_wanmib_seq_open
+
+
+
+-static const struct file_operations atm_wanmib_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_read_atm_wanmib_seq_open,
+- .read = seq_read,
+- .write = proc_write_atm_wanmib,
+- .llseek = seq_lseek,
+- .release = single_release,
++static const struct proc_ops atm_wanmib_proc_fops = {
++ .proc_open = proc_read_atm_wanmib_seq_open,
++ .proc_read = seq_read,
++ .proc_write = proc_write_atm_wanmib,
++ .proc_lseek = seq_lseek,
++ .proc_release = single_release,
+ };
+
+ static int proc_read_htu_seq_open(struct inode *inode, struct file *file)
+@@ -2187,12 +2172,11 @@ static int proc_read_htu_seq_open(struct
+ return single_open(file, proc_read_htu, PDE_DATA(inode));
+ }
+
+-static const struct file_operations htu_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_read_htu_seq_open,
+- .read = seq_read,
+- .llseek = seq_lseek,
+- .release = single_release,
++static const struct proc_ops htu_proc_fops = {
++ .proc_open = proc_read_htu_seq_open,
++ .proc_read = seq_read,
++ .proc_lseek = seq_lseek,
++ .proc_release = single_release,
+ };
+
+ static int proc_read_queue_seq_open(struct inode *inode, struct file *file)
+@@ -2200,12 +2184,11 @@ static int proc_read_queue_seq_open(stru
+ return single_open(file, proc_read_queue, PDE_DATA(inode));
+ }
+
+-static const struct file_operations queue_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_read_queue_seq_open,
+- .read = seq_read,
+- .llseek = seq_lseek,
+- .release = single_release,
++static const struct proc_ops queue_proc_fops = {
++ .proc_open = proc_read_queue_seq_open,
++ .proc_read = seq_read,
++ .proc_lseek = seq_lseek,
++ .proc_release = single_release,
+ };
+
+ static void set_q_prio(struct atm_priv *priv,
+@@ -2428,13 +2411,12 @@ static const struct seq_operations pvc_m
+ .show = pvc_mib_seq_show,
+ };
+
+-static const struct file_operations atm_prio_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_atm_read_prio_seq_open,
+- .read = seq_read,
+- .llseek = seq_lseek,
+- .write = proc_atm_write_prio,
+- .release = single_release,
++static const struct proc_ops atm_prio_proc_fops = {
++ .proc_open = proc_atm_read_prio_seq_open,
++ .proc_read = seq_read,
++ .proc_lseek = seq_lseek,
++ .proc_write = proc_atm_write_prio,
++ .proc_release = single_release,
+ };
+
+ static int proc_read_pvc_mib_seq_open(struct inode *inode, struct file *file)
+@@ -2447,12 +2429,11 @@ static int proc_read_pvc_mib_seq_open(st
+ return ret;
+ }
+
+-static const struct file_operations atm_pvc_mib_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_read_pvc_mib_seq_open,
+- .read = seq_read,
+- .llseek = seq_lseek,
+- .release = seq_release,
++static const struct proc_ops atm_pvc_mib_proc_fops = {
++ .proc_open = proc_read_pvc_mib_seq_open,
++ .proc_read = seq_read,
++ .proc_lseek = seq_lseek,
++ .proc_release = seq_release,
+ };
+
+ static ssize_t proc_write_cell(struct file *file,
+@@ -2592,13 +2573,12 @@ static int proc_read_cell_seq_open(struc
+ return single_open(file, proc_read_cell, NULL);
+ }
+
+-static const struct file_operations atm_cell_proc_fops = {
+- .owner = THIS_MODULE,
+- .open = proc_read_cell_seq_open,
+- .read = seq_read,
+- .write = proc_write_cell,
+- .llseek = seq_lseek,
+- .release = single_release,
++static const struct proc_ops atm_cell_proc_fops = {
++ .proc_open = proc_read_cell_seq_open,
++ .proc_read = seq_read,
++ .proc_write = proc_write_cell,
++ .proc_lseek = seq_lseek,
++ .proc_release = single_release,
+ };
+
+ static struct tc_proc_list atm_procs[] = {
diff --git a/package/kernel/lantiq/vrx518_tc/patches/200-swplat.patch b/package/kernel/lantiq/vrx518_tc/patches/200-swplat.patch
new file mode 100644
index 0000000000..793adefdd6
--- /dev/null
+++ b/package/kernel/lantiq/vrx518_tc/patches/200-swplat.patch
@@ -0,0 +1,1356 @@
+The existing software receive and transmit path does not actually work.
+This replaces it by a basic working implementation.
+
+--- a/dcdp/atm_tc.c
++++ b/dcdp/atm_tc.c
+@@ -603,7 +603,11 @@ static void atm_aca_init(struct atm_priv
+ cfg = &priv->tc_priv->cfg;
+
+ txin = ¶m.aca_txin;
++#if defined(__LITTLE_ENDIAN)
++ txin->byteswap = 0;
++#else
+ txin->byteswap = 1;
++#endif
+ txin->hd_size_in_dw = cfg->txin.soc_desc_dwsz;
+ txin->pd_desc_base = SB_XBAR_ADDR(__ACA_TX_IN_PD_LIST_BASE);
+ txin->pd_desc_num = __ACA_TX_IN_PD_LIST_NUM;
+@@ -625,7 +629,11 @@ static void atm_aca_init(struct atm_priv
+ txin->soc_cmlt_cnt_addr);
+
+ txout = ¶m.aca_txout;
++#if defined(__LITTLE_ENDIAN)
++ txout->byteswap = 0;
++#else
+ txout->byteswap = 1;
++#endif
+ txout->hd_size_in_dw = cfg->txout.soc_desc_dwsz;
+ txout->pd_desc_base = SB_XBAR_ADDR(__ACA_TX_OUT_PD_LIST_BASE);
+ txout->pd_desc_num = __ACA_TX_OUT_PD_LIST_NUM;
+@@ -647,7 +655,11 @@ static void atm_aca_init(struct atm_priv
+ txout->soc_cmlt_cnt_addr);
+
+ rxout = ¶m.aca_rxout;
++#if defined(__LITTLE_ENDIAN)
++ rxout->byteswap = 0;
++#else
+ rxout->byteswap = 1;
++#endif
+ rxout->hd_size_in_dw = cfg->rxout.soc_desc_dwsz;
+ rxout->pd_desc_base = SB_XBAR_ADDR(__ACA_RX_OUT_PD_LIST_BASE);
+ rxout->pd_desc_num = __ACA_RX_OUT_PD_LIST_NUM;
+@@ -669,7 +681,11 @@ static void atm_aca_init(struct atm_priv
+ rxout->soc_cmlt_cnt_addr);
+
+ rxin = ¶m.aca_rxin;
++#if defined(__LITTLE_ENDIAN)
++ rxin->byteswap = 0;
++#else
+ rxin->byteswap = 1;
++#endif
+ rxin->hd_size_in_dw = cfg->rxin.soc_desc_dwsz;
+ rxin->pd_desc_base = SB_XBAR_ADDR(__RX_IN_PD_DES_LIST_BASE);
+ rxin->pd_desc_num = __ACA_RX_IN_PD_LIST_NUM;
+@@ -1261,7 +1277,7 @@ static int ppe_ioctl(struct atm_dev *dev
+ static int ppe_send(struct atm_vcc *vcc, struct sk_buff *skb)
+ {
+ int ret, qid, mpoa_pt, mpoa_type, vid;
+- unsigned int prio, conn;
++ unsigned int prio, conn, len;
+ struct atm_priv *priv;
+
+ if (!vcc) {
+@@ -1327,12 +1343,14 @@ static int ppe_send(struct atm_vcc *vcc,
+ tc_dbg(priv->tc_priv, MSG_TX, "vid: 0x%x, qid: 0x%x\n",
+ vid, qid);
+
++ len = skb->len;
++
+ if (priv->tc_priv->tc_ops.send(NULL,
+ skb, qid, ATM_SL_PKT) == 0) {
+ priv->stats.aal5_tx_pkts++;
+- priv->stats.aal5_tx_bytes += skb->len;
++ priv->stats.aal5_tx_bytes += len;
+ priv->conn[conn].stats.aal5_tx_pkts++;
+- priv->conn[conn].stats.aal5_tx_bytes += skb->len;
++ priv->conn[conn].stats.aal5_tx_bytes += len;
+ priv->conn[conn].prio_tx_packets[prio]++;
+ } else {
+ tc_dbg(priv->tc_priv, MSG_TX, "ATM: TX fail\n");
+--- a/dcdp/ptm_tc.c
++++ b/dcdp/ptm_tc.c
+@@ -497,6 +497,7 @@ static int ptm_xmit(struct sk_buff *skb,
+ struct ptm_priv *ptm_tc = netdev_priv(dev);
+ int qid;
+ enum tc_pkt_type type;
++ unsigned int len;
+
+ if (!showtime_stat(ptm_tc->tc_priv))
+ goto PTM_XMIT_DROP;
+@@ -510,11 +511,13 @@ static int ptm_xmit(struct sk_buff *skb,
+ type = ptm_tc->tc_priv->tc_mode == TC_PTM_BND_MODE
+ ? PTM_BOND_PKT : PTM_SL_PKT;
+
++ len = skb->len;
++
+ if (ptm_tc->tc_priv->tc_ops.send(dev, skb, qid, type) < 0)
+ ptm_tc->stats64.tx_dropped++;
+ else {
+ ptm_tc->stats64.tx_packets++;
+- ptm_tc->stats64.tx_bytes += skb->len;
++ ptm_tc->stats64.tx_bytes += len;
+ }
+
+ return 0;
+@@ -631,7 +634,7 @@ static int ptm_dev_init(struct tc_priv *
+ const char macaddr[ETH_ALEN]
+ = {0xAC, 0x9A, 0x96, 0x11, 0x22, 0x33};
+
+- dev = alloc_netdev_mq(sizeof(*ptm_tc), "dsl%d", NET_NAME_ENUM, ptm_setup, 4);
++ dev = alloc_netdev(sizeof(*ptm_tc), "dsl%d", NET_NAME_ENUM, ptm_setup);
+ if (!dev) {
+ tc_dbg(tc_priv, MSG_INIT, "Cannot alloc net device\n");
+ return -ENOMEM;
+@@ -2324,7 +2327,11 @@ static void ptm_aca_init(struct ptm_ep_p
+ cfg = &priv->tc_priv->cfg;
+
+ txin = ¶m.aca_txin;
++#if defined(__LITTLE_ENDIAN)
++ txin->byteswap = 0;
++#else
+ txin->byteswap = 1;
++#endif
+ txin->hd_size_in_dw = cfg->txin.soc_desc_dwsz;
+ txin->pd_desc_base = SB_XBAR_ADDR(__ACA_TX_IN_PD_LIST_BASE);
+ txin->pd_desc_num = __ACA_TX_IN_PD_LIST_NUM;
+@@ -2347,7 +2354,11 @@ static void ptm_aca_init(struct ptm_ep_p
+ txin->soc_cmlt_cnt_addr);
+
+ txout = ¶m.aca_txout;
++#if defined(__LITTLE_ENDIAN)
++ txout->byteswap = 0;
++#else
+ txout->byteswap = 1;
++#endif
+ txout->hd_size_in_dw = cfg->txout.soc_desc_dwsz;
+ if (priv->tc_priv->param.cdma_desc_loc == LOC_IN_FPI)
+ txout->pd_desc_base = sb_r32(__TX_OUT_SHADOW_PTR) - phybase;
+@@ -2373,7 +2384,11 @@ static void ptm_aca_init(struct ptm_ep_p
+ txout->soc_cmlt_cnt_addr);
+
+ rxout = ¶m.aca_rxout;
++#if defined(__LITTLE_ENDIAN)
++ rxout->byteswap = 0;
++#else
+ rxout->byteswap = 1;
++#endif
+ rxout->hd_size_in_dw = cfg->rxout.soc_desc_dwsz;
+ if (priv->tc_priv->param.cdma_desc_loc == LOC_IN_FPI)
+ rxout->pd_desc_base = sb_r32(__RX_OUT_SHADOW_PTR) - phybase;
+@@ -2399,7 +2414,11 @@ static void ptm_aca_init(struct ptm_ep_p
+ rxout->soc_cmlt_cnt_addr);
+
+ rxin = ¶m.aca_rxin;
++#if defined(__LITTLE_ENDIAN)
++ rxin->byteswap = 0;
++#else
+ rxin->byteswap = 1;
++#endif
+ rxin->hd_size_in_dw = cfg->rxin.soc_desc_dwsz;
+ rxin->pd_desc_base = SB_XBAR_ADDR(__RX_IN_PD_DES_LIST_BASE);
+ rxin->pd_desc_num = __ACA_RX_IN_PD_LIST_NUM;
+--- a/dcdp/platform/sw_plat.c
++++ b/dcdp/platform/sw_plat.c
+@@ -36,10 +36,13 @@
+ #include <linux/printk.h>
+ #include <linux/etherdevice.h>
+ #include <linux/workqueue.h>
+-#include "inc/dsl_tc.h"
++#include "../inc/dsl_tc.h"
+
+ #include "../inc/tc_main.h"
+ #include "../inc/reg_addr.h"
++#include "../inc/tc_common.h"
++
++#include "../inc/fw/vrx518_addr_def.h"
+
+
+ #define PMAC_SIZE 8
+@@ -70,7 +73,7 @@ enum {
+ #define TXIN_DNUM 128
+ #define TXOUT_DNUM 128
+ #define RXOUT_DNUM 1024
+-#define RXIN_DNUM 1024
++#define RXIN_DNUM 0
+
+ #define TXIN_CHECK_NUM 32
+
+@@ -80,22 +83,32 @@ struct aca_ring {
+ void *umt_dst;
+ u32 umt_phydst;
+ u32 dnum;
++ u32 dsize;
+ int idx; /* SoC RX/TX index */
+- int cnt;
+- void *cnt_addr;
+- u32 cnt_phyaddr;
+ int ep_dev_idx;
+ };
+
++struct tx_list_item {
++ size_t len;
++ void *buf;
++ dma_addr_t phyaddr;
++};
++
++struct tx_list {
++ struct tx_list_item *data;
++ u32 dnum;
++};
++
+ struct aca_ring_grp {
+ struct aca_ring rxin;
+ struct aca_ring txin;
+ struct aca_ring rxout;
+ struct aca_ring txout;
++ struct tx_list txlist;
+ };
+
+-#if 1
+-struct dma_desc {
++#if defined(__LITTLE_ENDIAN)
++struct dma_tx_desc {
+ /* DW 0 */
+ u32 qid;
+ /* DW 1 */
+@@ -112,8 +125,26 @@ struct dma_desc {
+ u32 c:1;
+ u32 own:1;
+ }__packed;
++
++struct dma_rx_desc {
++ /* DW 0 */
++ u32 qid;
++ /* DW 1 */
++ u32 res2;
++ /* DW 2 */
++ u32 data_len:16;
++ u32 res0:7;
++ u32 byte_off:3;
++ u32 res1:2;
++ u32 eop:1;
++ u32 sop:1;
++ u32 c:1;
++ u32 own:1;
++ /* DW 3 */
++ u32 data_ptr;
++}__packed;
+ #else
+-struct dma_desc {
++struct dma_tx_desc {
+ /* DW 0 */
+ u32 qid;
+ /* DW 1 */
+@@ -131,14 +162,25 @@ struct dma_desc {
+ u32 data_len:16;
+ }__packed;
+
++struct dma_rx_desc {
++ /* DW 0 */
++ u32 qid;
++ /* DW 1 */
++ u32 res;
++ /* DW 2 */
++ u32 own:1;
++ u32 c:1;
++ u32 sop:1;
++ u32 eop:1;
++ u32 res1:2;
++ u32 byte_off:3;
++ u32 res0:7;
++ u32 data_len:16;
++ /* DW 3 */
++ u32 data_ptr;
++}__packed;
+ #endif
+
+-struct plat_dma {
+- u32 chan; /* CHAN IID */
+- u32 dma_chan; /* CONTROLLER/PORT/CHAN ID */
+- u32 ds_dnum; /* DS descriptor number */
+-};
+-
+ struct plat_umt {
+ u32 id;
+ u32 cbm_id;
+@@ -152,28 +194,28 @@ struct tc_req {
+ enum dsl_tc_mode tc_mode;
+ };
+
+-#if 0
+-struct tc_coc {
+- enum ltq_cpufreq_state coc_stat;
+- struct tasklet_struct coc_task;
++struct mem_map_entry {
++ dma_addr_t phyaddr;
++ void *mem;
++ size_t size;
++ struct hlist_node node;
+ };
+-#endif
+
+ struct plat_priv {
+ struct tc_priv *tc_priv;
+ struct plat_umt umt[EP_MAX_NUM];
+- struct plat_dma dma[EP_MAX_NUM];
+ struct ltq_mei_atm_showtime_info dsl_ops;
+ struct tc_req req_work;
+ struct aca_ring_grp soc_rings;
+- /* struct tc_coc coc;*/
++ struct net_device *netdev;
++ DECLARE_HASHTABLE(mem_map, 8);
+ };
+
+ static struct plat_priv *g_plat_priv;
+ struct tasklet_struct txout_task;
+ struct tasklet_struct rxout_task;
+
+-static void txout_action(struct tc_priv *priv, struct aca_ring *txout);
++static DEFINE_SPINLOCK(tx_spinlock);
+
+ void *ppa_callback_get(e_ltq_mei_cb_type type)
+ {
+@@ -259,122 +301,65 @@ static inline struct tc_priv *plat_to_tc
+ return g_plat_priv->tc_priv;
+ }
+
+-static int32_t plat_rx(struct net_device *rxdev, struct net_device *txdev,
+- struct sk_buff *skb, int32_t len)
+-{
+- int32_t err;
+- struct tc_priv *tc_priv = plat_to_tcpriv();
+-
+- if (unlikely(!rxdev)) {
+- if (txdev != NULL)
+- tc_dbg(tc_priv, MSG_RX,
+- "Recv undelivered packet from DP lib\n");
+- else
+- tc_dbg(tc_priv, MSG_RX, "Recv unknown packet\n");
+- err = -ENODEV;
+- goto err1;
+- }
+-
+- tc_priv->tc_ops.recv(rxdev, skb);
+- return 0;
+-
+-err1:
+- dev_kfree_skb_any(skb);
+-
+- return err;
+-}
+-
+-#if 0
+-static int32_t plat_get_subifid(struct net_device *dev, struct sk_buff *skb,
+- void *subif_data, uint8_t dst_mac[MAX_ETH_ALEN],
+- dp_subif_t *subif, uint32_t flags)
+-{
+- int qid;
+- struct tc_priv *priv = plat_to_tcpriv();
+-
+- qid = priv->tc_ops.get_qid(dev, skb, subif_data, flags);
+- if (qid < 0)
+- return qid;
+- else
+- subif->subif = qid;
+-
+- return 0;
+-}
+-#endif
+-
+-#if 0
+-static void plat_coc_tasklet(unsigned long arg)
+-{
+- /* change state to D0 */
+- if (g_plat_priv->coc.coc_stat == LTQ_CPUFREQ_PS_D0)
+- return;
+-
+- g_plat_priv->coc.coc_stat = LTQ_CPUFREQ_PS_D0;
+-}
+-
+-static void plat_coc_req(void)
+-{
+- tasklet_schedule(&g_plat_priv->coc.coc_task);
+-}
++static void *plat_mem_alloc(size_t size, enum tc_dir dir, u32 *phyaddr);
++static void *plat_mem_virt(u32 phyaddr);
++static void plat_mem_free(u32 phyaddr, enum tc_dir dir);
+
++static void txlist_free(struct tx_list *list);
+
+-static int32_t plat_coc_stat(enum ltq_cpufreq_state new_state,
+- enum ltq_cpufreq_state old_state, uint32_t flags)
++static int txlist_init(struct tx_list *list, u32 dnum)
+ {
+- struct tc_priv *priv = plat_to_tcpriv();
+- tc_dbg(priv, MSG_COC,
+- "COC current state: %d, new state: %d, old state: %d\n",
+- g_plat_priv->coc.coc_stat, new_state, old_state);
++ struct tx_list_item *item;
++ int i;
+
+- if (g_plat_priv->coc.coc_stat != new_state) {
+- g_plat_priv->coc.coc_stat = new_state;
++ list->dnum = dnum;
+
+- if (new_state == LTQ_CPUFREQ_PS_D3) {
+- /* Enable interrupt for DS packet */
+- priv->tc_ops.irq_on(MBOX_PKT_RX);
+- } else {
+- /* Disable interrupt for DS packet */
+- priv->tc_ops.irq_off(MBOX_PKT_RX);
++ list->data = kcalloc(dnum, sizeof(struct tx_list_item), GFP_KERNEL);
++ if (!list->data) {
++ pr_err("Failed to allocate TX list!\n");
++ goto err;
++ }
++
++ for (i = 0; i < list->dnum; i++) {
++ item = &list->data[i];
++
++ // use plat_mem_alloc as these buffers will be mixed with buffers allocated in ptm_tc.c / atm_tc.c
++ item->buf = plat_mem_alloc(DMA_PACKET_SZ, US_DIR, &item->phyaddr);
++ if (!item->buf) {
++ pr_err("Failed to allocate TX buffer!\n");
++ goto err;
+ }
+ }
+
+ return 0;
+-}
+-#endif
+-
+-static inline int ring_dist(int idx1, int idx2, int size)
+-{
+- if (idx1 >= idx2)
+- return (idx1 - idx2);
+- else
+- return (idx1 + size - idx2);
+-}
+
+-static inline int __ring_full(int idx, int cnt, u32 dnum)
+-{
+- if (ring_dist(idx, cnt, dnum) < dnum - 1)
+- return 0;
+- else
+- return 1;
++err:
++ txlist_free(list);
++ return -1;
+ }
+
+-static inline int ring_full(struct aca_ring *ring)
++static void txlist_free(struct tx_list *list)
+ {
+- if (!__ring_full(ring->idx, ring->cnt, ring->dnum))
+- return 0;
++ struct tx_list_item *item;
++ int i;
+
+- /* if ring full, update cumulative counter and check again */
+- ring->cnt = readl(ring->cnt_addr) % ring->dnum;
++ if (list->data) {
++ for (i = 0; i < list->dnum; i++) {
++ item = &list->data[i];
++
++ if (item->buf) {
++ // use plat_mem_free as these buffers are mixed with buffers allocated in ptm_tc.c / atm_tc.c
++ plat_mem_free(item->phyaddr, US_DIR);
++ }
++ }
++ }
+
+- return __ring_full(ring->idx, ring->cnt, ring->dnum);
++ kfree(list->data);
+ }
+
+-#define ring_idx_inc(ring, idx) \
+- do { ring->idx = (ring->idx + 1) % ring->dnum; } while (0);
+-
+-static inline void ring_cnt_update(struct aca_ring *ring)
++static inline void ring_idx_inc(struct aca_ring *ring)
+ {
+- ring->cnt = readl(ring->cnt_addr) % ring->dnum;
++ ring->idx = (ring->idx + 1) % ring->dnum;
+ }
+
+ static struct sk_buff *txin_skb_prepare(struct sk_buff *skb)
+@@ -399,252 +384,220 @@ static struct sk_buff *txin_skb_prepare(
+ return nskb;
+ }
+
+-static int ring_mmap(void *mem, int size,
+- enum dma_data_direction dir, u32 *addr)
+-{
+- struct device *pdev;
+- dma_addr_t phy_addr;
+- struct tc_priv *priv;
+- u32 addr1;
+-
+- priv = g_plat_priv->tc_priv;
+- pdev = priv->ep_dev[0].dev;
+-
+- phy_addr = dma_map_single(pdev, mem, size, dir);
+- if (unlikely(dma_mapping_error(pdev, phy_addr))) {
+- tc_err(priv, MSG_INIT,
+- "DMA address mapping error: buf: 0x%x, size: %d, dir: %d\n",
+- (u32)mem, size, dir);
+- return -ENOMEM;
+- }
+- dma_unmap_single(pdev, phy_addr, size, dir);
+-
+- pr_info("vaddr: 0x%x, phyaddr: 0x%lx\n", (u32)mem, phy_addr);
+- addr1 = (u32)phy_addr;
+-
+- if (addr)
+- *addr = addr1;
+-
+- return 0;
+-}
+-
+-static void txin_action(struct tc_priv *priv, struct aca_ring *txin,
++static int txin_action(struct tc_priv *priv, struct aca_ring *txin,
+ struct sk_buff *skb, int qid, enum tc_pkt_type type)
+ {
+- struct dma_desc *desc, desc1;
+- u32 phyaddr, *dst, *src;
+- int i;
++ struct device *pdev = priv->ep_dev[0].dev;
++ struct aca_ring *txout = &g_plat_priv->soc_rings.txout;
++ struct tx_list *txlist = &g_plat_priv->soc_rings.txlist;
++ struct dma_tx_desc *desc;
++ struct tx_list_item *txlist_item;
++ unsigned long flags;
++
++ if (!g_plat_priv->netdev) {
++ spin_lock_irqsave(&tx_spinlock, flags);
++ }
+
+- if (ring_full(txin)) {
+- tc_dbg(priv, MSG_TX,
+- "TXIN Ring Full!: idx: %d, cnt: %d\n",
+- txin->idx, txin->cnt);
++ if ((txin->idx + 2) % txin->dnum == txout->idx) {
++ if (g_plat_priv->netdev) {
++ netif_stop_queue(g_plat_priv->netdev);
++ }
++ } else if ((txin->idx + 1) % txin->dnum == txout->idx) {
++ tc_err(priv, MSG_TX, "TXIN ring full: txin: %d, txout: %d\n",
++ txin->idx, txout->idx);
+ goto err1;
+ }
+
++ desc = (struct dma_tx_desc *)txin->dbase_mem;
++ desc += txin->idx;
++
++ txlist_item = &txlist->data[txin->idx];
++
+ skb = txin_skb_prepare(skb);
+ if (!skb)
+- return;
++ goto err2;
+
+- if (ring_mmap(skb->data, skb->len, DMA_TO_DEVICE, &phyaddr) < 0) {
+- tc_err(priv, MSG_TX, "TXIN data mmap failed: 0x%x\n",
+- (unsigned int)skb->data);
+- goto err1;
+- }
++ /*
++ * Copy the data to a buffer in the driver. This is necessary because there doesn't seem to be a timely signal
++ * from the device when it has consumed a buffer, which would allow to safely free it. The data_ptr is only
++ * returned in TXOUT after another fixed number of packets (depending on the size of internal buffers) has been
++ * transmitted, which may not happen in the near future. Making a copy allows to free the SKB here.
++ */
++ memcpy(txlist_item->buf, skb->data, skb->len);
+
+- /* init a new descriptor for the new skb */
+- desc = (struct dma_desc *)txin->dbase_mem;
+- desc += txin->idx;
++ dma_sync_single_range_for_device(pdev, txlist_item->phyaddr, 0, skb->len, DMA_TO_DEVICE);
+
+- memset(desc, 0, sizeof(*desc));
+- memset(&desc1, 0, sizeof(desc1));
+- desc1.own = 1;
+- desc1.c = 1;
+- desc1.sop = 1;
+- desc1.eop = 1;
+- desc1.byte_off = phyaddr & 0x7;
+- desc1.data_len = skb->len;
+-
+- desc1.data_ptr = phyaddr & (~(0x7));
+- desc1.qid = qid;
+-
+- dst = (u32 *)desc;
+- src = (u32 *)&desc1;
+- for (i = 0; i < DW_SZ(desc1); i++)
+- dst[i] = cpu_to_be32(src[i]);
+-
+- pr_info("txin idx: %d\n", txin->idx);
+- pr_info("descriptor dst val:(DW0-DW3): 0x%x, 0x%x, 0x%x, 0x%x\n",
+- dst[0], dst[1], dst[2], dst[3]);
+- pr_info("descriptor src val: (DW0-DW3): 0x%x, 0x%x, 0x%x, 0x%x\n",
+- src[0], src[1], src[2], src[3]);
+-
+- if (ring_mmap(desc, sizeof(*desc), DMA_TO_DEVICE, NULL) < 0) {
+- tc_err(priv, MSG_TX, "TXIN descriptor mmap failed: 0x%x\n",
+- (unsigned int)desc);
++ // this should never happen, the buffers are already aligned by kmalloc
++ if (WARN_ON((txlist_item->phyaddr & 0x7) != 0))
+ goto err1;
++
++ if (g_plat_priv->netdev) {
++ netdev_sent_queue(g_plat_priv->netdev, skb->len);
+ }
++ txlist_item->len = skb->len;
++
++ memset(desc, 0, sizeof(*desc));
+
+- ring_idx_inc(txin, idx);
++ desc->data_ptr = txlist_item->phyaddr;
++ desc->byte_off = 0;
++ desc->data_len = skb->len;
++ desc->qid = qid;
++
++ desc->sop = 1;
++ desc->eop = 1;
++ desc->c = 0;
++ desc->own = 1;
++
++ dev_consume_skb_any(skb);
++
++ ring_idx_inc(txin);
+
+ /* update TXIN UMT by 1 */
+ writel(1, txin->umt_dst);
+- pr_info("TXIN send txin packet 1 packet\n");
+
+- /* Free skb */
+- dev_kfree_skb_any(skb);
++ if (!g_plat_priv->netdev) {
++ spin_unlock_irqrestore(&tx_spinlock, flags);
++ }
+
+- /* check txout for testing*/
+- //txout_action(plat_to_tcpriv(), &g_plat_priv->soc_rings.txout);
+- return;
++ return 0;
+
+ err1:
+- //skb->delay_free = 0;
+ dev_kfree_skb_any(skb);
++
++err2:
++ if (!g_plat_priv->netdev) {
++ spin_unlock_irqrestore(&tx_spinlock, flags);
++ }
++
++ return -1;
+ }
+
+ static void txout_action(struct tc_priv *priv, struct aca_ring *txout)
+ {
+- int i, cnt;
+- struct dma_desc *desc;
+- u32 ptr;
+- void *mem;
+-
+- ring_cnt_update(txout);
+- cnt = ring_dist(txout->idx, txout->cnt, txout->dnum);
++ struct aca_ring *txin = &g_plat_priv->soc_rings.txin;
++ struct tx_list *txlist = &g_plat_priv->soc_rings.txlist;
++ struct tx_list_item *txlist_item;
++ int i, cnt, bytes;
++ u32 *desc;
++ unsigned long flags;
++
++ cnt = 0;
++ bytes = 0;
++
++ if (g_plat_priv->netdev) {
++ netif_tx_lock(g_plat_priv->netdev);
++ } else {
++ spin_lock_irqsave(&tx_spinlock, flags);
++ }
+
+- for (i = 0; i < cnt; i++) {
++ for (i = 0; i < txout->dnum; i++) {
+ desc = txout->dbase_mem;
+ desc += txout->idx;
+- /* read from memory */
+- if (ring_mmap(desc, sizeof(*desc), DMA_FROM_DEVICE, NULL) < 0) {
+- tc_err(priv, MSG_TX,
+- "map TXOUT DMA descriptor failed\n");
+- continue;
++
++ // *desc seems to be a pointer to a QoSQ buffer or the data_ptr of some previously sent packet
++ if (*desc == 0) {
++ break;
+ }
+- ptr = desc->data_ptr + desc->byte_off;
+- mem = (void * __force)__va(ptr);
+- kfree(mem);
+- ring_idx_inc(txout, idx);
+- }
+
+- if (cnt)
+- writel(cnt, txout->umt_dst);
+- pr_info("TXOUT received %d descriptors\n", cnt);
+-}
++ if (txout->idx == txin->idx) {
++ tc_err(priv, MSG_TX, "TXOUT unexpected non-zero descriptor: txin: %d, txout: %d\n",
++ txin->idx, txout->idx);
++ break;
++ }
+
+-static void rxin_action(struct tc_priv *priv,
+- struct aca_ring *rxin, int size, int cnt)
+-{
+- int i, dist;
+- struct dma_desc *desc;
+- void *data_ptr;
+- u32 phyaddr;
+-
+- if (ring_full(rxin)) {
+- tc_dbg(priv, MSG_RX,
+- "RXIN Ring Full!: idx: %d, cnt: %d\n",
+- rxin->idx, rxin->cnt);
+- return;
+- }
++ txlist_item = &txlist->data[txout->idx];
+
+- dist = ring_dist(rxin->idx, rxin->cnt, rxin->dnum);
+- if (cnt > dist) {
+- WARN_ONCE(1, "RXIN NO enough room for free buffers: free: %d, room: %d\n",
+- cnt, dist);
+- cnt = dist;
++ cnt++;
++ bytes += txlist_item->len;
++
++ /*
++ * Reuse the returned buffer. The previous buffer should still be referenced by another descriptor.
++ * When the driver is unloaded, all buffers in the txlist as well as those referenced by the
++ * descriptors managed in ptm_tc.c or atm_tc.c will be freed.
++ */
++ txlist_item->buf = plat_mem_virt(*desc);
++ txlist_item->phyaddr = *desc;
++
++ *desc = 0;
++
++ ring_idx_inc(txout);
+ }
+
+- for (i = 0; i < cnt; i++) {
+- data_ptr = kmalloc(size, GFP_ATOMIC);
+- if (!data_ptr) {
+- tc_err(priv, MSG_RX,
+- "RXIN kmalloc data buffer failed: %d\n", size);
+- goto err1;
+- }
++ if (cnt) {
++ writel(cnt, txout->umt_dst+0x28); // TXOUT_HD_ACCUM_SUB instead of TXOUT_HD_ACCUM_ADD
+
+- if (ring_mmap(data_ptr, size, DMA_FROM_DEVICE, &phyaddr) < 0) {
+- tc_err(priv, MSG_RX,
+- "RXIN kmalloc data buffer failed: %d\n", size);
+- goto err2;
++ if (g_plat_priv->netdev) {
++ netdev_completed_queue(g_plat_priv->netdev, cnt, bytes);
+ }
++ }
+
+- desc = (struct dma_desc *)rxin->dbase_mem;
+- desc += rxin->idx;
+- memset(desc, 0, sizeof(*desc));
+-
+- desc->data_len = size;
+- desc->byte_off = phyaddr & 0x7;
+- desc->eop = 1;
+- desc->sop = 1;
+- desc->own = 1;
+-
+- desc->data_ptr = phyaddr;
+-
+-
+- if (ring_mmap(desc, sizeof(*desc), DMA_TO_DEVICE, NULL) < 0) {
+- tc_err(priv, MSG_RX, "RXIN descriptor mmap failed: 0x%x\n",
+- (unsigned int)desc);
+- goto err2;
+- }
+-
+- ring_idx_inc(rxin, idx);
++ if (g_plat_priv->netdev) {
++ netif_tx_unlock(g_plat_priv->netdev);
++ } else {
++ spin_unlock_irqrestore(&tx_spinlock, flags);
+ }
+
+- /* update RXIN UMT*/
+- writel(i, rxin->umt_dst);
+- pr_info("rxin refill %d descriptors\n", i);
+- return;
++ if (cnt && g_plat_priv->netdev && netif_queue_stopped(g_plat_priv->netdev)) {
++ netif_wake_queue(g_plat_priv->netdev);
++ }
++}
+
+-err2:
+- kfree(data_ptr);
+-err1:
+- if (i)
+- writel(i, rxin->umt_dst);
+- return;
++static void rxin_action(struct tc_priv *priv,
++ struct aca_ring *rxin, int size, int cnt)
++{
++ /* update RXIN UMT*/
++ writel(cnt, rxin->umt_dst);
+ }
+
+ static int rxout_action(struct tc_priv *priv, struct aca_ring *rxout)
+ {
++ struct device *pdev = priv->ep_dev[0].dev;
+ int i, cnt;
+- struct dma_desc *desc;
+- u32 ptr;
+- void *mem;
++ struct dma_rx_desc *desc;
++ dma_addr_t phyaddr;
++ void *ptr, *dst;
++ size_t len;
+ struct sk_buff *skb;
+
+- ring_cnt_update(rxout);
+- cnt = ring_dist(rxout->idx, rxout->cnt, rxout->dnum);
+-
+- for (i = 0; i < cnt; i++) {
++ cnt = 0;
++ for (i = 0; i < rxout->dnum; i++) {
+ desc = rxout->dbase_mem;
+ desc += rxout->idx;
+
+- /* read from memory */
+- if (ring_mmap(desc, sizeof(*desc), DMA_FROM_DEVICE, NULL) < 0) {
+- tc_err(priv, MSG_RX,
+- "map RXOUT DMA descriptor failed\n");
+- continue;
++ if (!desc->own) {
++ break;
+ }
+- ptr = desc->data_ptr + desc->byte_off;
+- mem = __va(ptr);
+- skb = build_skb(mem, 0);
+- if (!skb) {
+- tc_err(priv, MSG_RX,
+- "RXOUT build skb failed\n");
+- kfree(mem);
+- continue;
++
++ // this seems to be a pointer to a DS PKT buffer
++ phyaddr = desc->data_ptr + desc->byte_off;
++ ptr = plat_mem_virt(phyaddr);
++
++ len = desc->data_len;
++
++ dma_sync_single_range_for_cpu(pdev, phyaddr, 0, len, DMA_FROM_DEVICE);
++
++ skb = netdev_alloc_skb(g_plat_priv->netdev, len);
++ if (unlikely(!skb)) {
++ tc_err(priv, MSG_RX, "RXOUT SKB allocation failed\n");
++ break;
+ }
+- priv->tc_ops.recv(NULL, skb);
+- ring_idx_inc(rxout, idx);
++
++ dst = skb_put(skb, len);
++ memcpy(dst, ptr, len);
++
++ priv->tc_ops.recv(g_plat_priv->netdev, skb);
++
++ desc->own = 0;
++
++ cnt++;
++ ring_idx_inc(rxout);
+ }
+
+ if (!cnt)
+- tc_err(priv, MSG_RX, "RXOUT dummy interrupt: dbase: 0x%x, idx: %d, cnt: %d\n",
+- (unsigned int)rxout->dbase_mem, rxout->idx, rxout->cnt);
++ tc_err(priv, MSG_RX, "RXOUT spurious interrupt\n");
+ else
+- writel(cnt, rxout->umt_dst);
++ writel(cnt, rxout->umt_dst+0x28); // RXOUT_HD_ACCUM_SUB instead of RXOUT_HD_ACCUM_ADD
+
+- pr_info("txout received %d packets\n", cnt);
+ return cnt;
+ }
+
+@@ -669,7 +622,6 @@ static void plat_rxout_tasklet(unsigned
+ struct aca_ring *rxin = &priv->soc_rings.rxin;
+ struct dc_ep_dev *ep_dev = &tcpriv->ep_dev[rxout->ep_dev_idx];
+ int cnt;
+-
+
+ cnt = rxout_action(tcpriv, rxout);
+ if (cnt)
+@@ -687,68 +639,144 @@ static int plat_send(struct net_device *
+ {
+ struct plat_priv *priv = g_plat_priv;
+ struct aca_ring *txin = &priv->soc_rings.txin;
++ int res;
+
+- txin_action(priv->tc_priv, txin, skb, qid, type);
++ res = txin_action(priv->tc_priv, txin, skb, qid, type);
+
+- return 0;
++ return res;
++}
++
++static void plat_mem_init(void)
++{
++ struct plat_priv *priv = g_plat_priv;
++
++ hash_init(priv->mem_map);
+ }
+
+ /* return virtual address */
+-static void *plat_mem_alloc(size_t size, enum tc_dir dir)
++static void *plat_mem_alloc(size_t size, enum tc_dir dir, u32 *phyaddr)
+ {
+- return kmalloc(size, GFP_KERNEL);
++ struct plat_priv *priv = g_plat_priv;
++ struct tc_priv *tcpriv = priv->tc_priv;
++ struct device *pdev = tcpriv->ep_dev[0].dev;
++ enum dma_data_direction dma_dir;
++ struct mem_map_entry *entry;
++
++ entry = kzalloc(sizeof(struct mem_map_entry), GFP_KERNEL);
++ if (!entry)
++ goto err;
++
++ entry->size = size;
++
++ entry->mem = kmalloc(size, GFP_KERNEL);
++ if (!entry->mem)
++ goto err_alloc;
++
++ dma_dir = (dir == DS_DIR) ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
++
++ entry->phyaddr = dma_map_single(pdev, entry->mem, entry->size, dma_dir);
++ if (unlikely(dma_mapping_error(pdev, entry->phyaddr))) {
++ tc_err(priv, MSG_INIT,
++ "plat_mem_alloc: DMA mapping error: buf: 0x%x, size: %d, dir: %d\n",
++ (u32)entry->mem, size, dir);
++
++ goto err_map;
++ }
++
++ hash_add(g_plat_priv->mem_map, &entry->node, entry->phyaddr);
++
++ *phyaddr = entry->phyaddr;
++ return entry->mem;
++
++err_map:
++ kfree(entry->mem);
++
++err_alloc:
++ kfree(entry);
++
++err:
++ return NULL;
+ }
+
+-static void plat_mem_free(u32 phy_addr, enum tc_dir dir)
++static void *plat_mem_virt(u32 phyaddr)
+ {
+- void *mem;
++ struct mem_map_entry *entry;
++
++ hash_for_each_possible(g_plat_priv->mem_map, entry, node, phyaddr)
++ if (entry->phyaddr == phyaddr)
++ return entry->mem;
++
++ WARN_ON(1);
++ return NULL;
++}
++
++static struct mem_map_entry *plat_mem_entry(u32 phyaddr)
++{
++ struct mem_map_entry *entry;
++
++ hash_for_each_possible(g_plat_priv->mem_map, entry, node, phyaddr)
++ if (entry->phyaddr == phyaddr)
++ return entry;
+
+- mem = (void * __force)__va(phy_addr);
+- kfree(mem);
++ return NULL;
+ }
+
+-static void aca_soc_ring_init(struct tc_priv *priv,
+- struct aca_ring *ring, u32 dnum, u32 dsize)
++static void plat_mem_free(u32 phyaddr, enum tc_dir dir)
+ {
++ struct tc_priv *priv = g_plat_priv->tc_priv;
++ struct device *pdev = priv->ep_dev[0].dev;
++ enum dma_data_direction dma_dir;
++ struct mem_map_entry *entry;
++
++ entry = plat_mem_entry(phyaddr);
++ if (WARN_ON(!entry))
++ return;
++
++ hash_del(&entry->node);
++
++ dma_dir = (dir == DS_DIR) ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
++ dma_unmap_single(pdev, entry->phyaddr, entry->size, dma_dir);
++
++ kfree(entry->mem);
++
++ kfree(entry);
++}
++
++static int ring_init(struct tc_priv *priv, struct aca_ring *ring, u32 dnum, u32 dsize)
++{
++ struct device *pdev = priv->ep_dev[0].dev;
+ int size;
+- struct device *pdev;
+
+ memset(ring, 0, sizeof(*ring));
+ ring->dnum = dnum;
++ ring->dsize = dsize;
++
++ if (ring->dnum == 0) {
++ return 0;
++ }
++
+ size = dsize * dnum;
+- pdev = priv->ep_dev[0].dev;
+
+- ring->dbase_mem = kmalloc(size, GFP_KERNEL);
++ ring->dbase_mem = dma_alloc_coherent(pdev, size, &(ring->dbase_phymem), GFP_KERNEL);
+ if (!ring->dbase_mem) {
+- tc_err(priv, MSG_INIT, "Allocate SoC Ring fail: %d\n", dnum);
+- return;
++ tc_err(priv, MSG_INIT, "Ring allocation failed: %d\n", dnum);
++ return -1;
+ }
+
+- ring_mmap(ring->dbase_mem, size, DMA_FROM_DEVICE, &(ring->dbase_phymem));
+- tc_dbg(priv, MSG_INIT, "ring: membase: 0x%x, phybase: 0x%x, dnum: %d\n",
+- (u32)ring->dbase_mem, ring->dbase_phymem, ring->dnum);
+-
+- size = sizeof(u32);
+- ring->cnt_addr = kzalloc(size, GFP_KERNEL);
+- if (!ring->cnt_addr) {
+- tc_err(priv, MSG_INIT, "Allocate cumulative counter fail!\n");
+- return;
+- }
++ return 0;
++}
+
+- ring_mmap(ring->cnt_addr, size, DMA_TO_DEVICE, &(ring->cnt_phyaddr));
+- tc_dbg(priv, MSG_INIT, "ring: cumulative cnt addr: 0x%x, phy address: 0x%x\n",
+- (u32)ring->cnt_addr, ring->cnt_phyaddr);
++#define ring_dnum(tcpriv, name1, name2) ((!tcpriv->param.name1##_dnum) ? name2##_DNUM : tcpriv->param.name1##_dnum)
+
+- return;
+-}
++static void ring_free(struct tc_priv *priv, struct aca_ring *ring)
++{
++ struct device *pdev = priv->ep_dev[0].dev;
+
+-#define ring_init(tcpriv, ring, name1, name2, num, size) \
+-{ \
+- if (!tcpriv->param.name1##_dnum) \
+- num = name2##_DNUM; \
+- else \
+- num = tcpriv->param.name1##_dnum; \
+- aca_soc_ring_init(tcpriv, ring, num, size); \
++ if (ring->dnum == 0) {
++ return;
++ }
++
++ dma_free_coherent(pdev, ring->dsize * ring->dnum, ring->dbase_mem, ring->dbase_phymem);
+ }
+
+ static irqreturn_t aca_rx_irq_handler(int irq, void *dev_id)
+@@ -777,39 +805,55 @@ static irqreturn_t aca_tx_irq_handler(in
+ return IRQ_HANDLED;
+ }
+
+-static void irq_init(struct tc_priv *priv, const char *dev_name)
++static void plat_irq_init(struct tc_priv *priv, const char *dev_name)
+ {
+ int ret;
+ int i;
+- char name[IFNAMSIZ];
++ //char name[IFNAMSIZ];
+
+ for (i = 0; i < EP_MAX_NUM && i < priv->ep_num; i++) {
+- sprintf(name, "%s%d", dev_name, i);
++ //snprintf(name, sizeof(name), "aca-rxo%d", i);
+
+ ret = devm_request_irq(priv->ep_dev[i].dev, priv->ep_dev[i].aca_rx_irq,
+- aca_rx_irq_handler, 0, name, &priv->ep_dev[i]);
++ aca_rx_irq_handler, 0, "aca-rxo", &priv->ep_dev[i]);
+
+ if (ret) {
+ tc_err(priv, MSG_INIT,
+ "ACA RX IRQ request Fail!: irq: %d, ep_id: %d\n",
+ priv->ep_dev[i].aca_rx_irq, i);
+ //return;
+- }
++ }
++
++ //snprintf(name, sizeof(name), "aca-txo%d", i);
+
+ ret = devm_request_irq(priv->ep_dev[i].dev, priv->ep_dev[i].aca_tx_irq,
+- aca_tx_irq_handler, 0, name, &priv->ep_dev[i]);
++ aca_tx_irq_handler, 0, "aca-txo", &priv->ep_dev[i]);
+
+ if (ret) {
+ tc_err(priv, MSG_INIT,
+ "ACA TX IRQ request Fail!: irq: %d, ep_id: %d\n",
+ priv->ep_dev[i].aca_tx_irq, i);
+ //return;
+- }
++ }
+ }
+
+ return;
+ }
+
++static void plat_irq_free(struct tc_priv *priv)
++{
++ int i;
++
++ for (i = 0; i < EP_MAX_NUM && i < priv->ep_num; i++) {
++
++ /* Unregister RX irq handler */
++ devm_free_irq(priv->ep_dev[i].dev, priv->ep_dev[i].aca_rx_irq, &priv->ep_dev[i]);
++
++ /* Unregister TX irq handler */
++ devm_free_irq(priv->ep_dev[i].dev, priv->ep_dev[i].aca_tx_irq, &priv->ep_dev[i]);
++ }
++}
++
+ /**
+ * Decide txin/rxout queue size
+ * Create a tx/rx queue
+@@ -819,29 +863,68 @@ static int plat_dp_init(struct plat_priv
+ struct tc_priv *tcpriv;
+ struct aca_ring_grp *soc_rings;
+ struct aca_ring *ring;
+- int size;
+ u32 dnum;
++ int i;
++ int ret = 0;
+
+ tcpriv = priv->tc_priv;
+
+- size = sizeof(struct dma_desc);
++ plat_mem_init();
++
+ soc_rings = &priv->soc_rings;
+
+ /* txin ring */
+ ring = &soc_rings->txin;
+- ring_init(tcpriv, ring, txin, TXIN, dnum, size);
++ dnum = ring_dnum(tcpriv, txin, TXIN);
++ ret = txlist_init(&soc_rings->txlist, dnum);
++ if (ret < 0)
++ goto err5;
++ ret = ring_init(tcpriv, ring, dnum, sizeof(struct dma_tx_desc));
++ if (ret < 0)
++ goto err4;
+
+ /* txout ring */
+ ring = &soc_rings->txout;
+- ring_init(tcpriv, ring, txout, TXOUT, dnum, size);
++ dnum = ring_dnum(tcpriv, txout, TXOUT);
++ ret = ring_init(tcpriv, ring, dnum, sizeof(u32));
++ if (ret < 0)
++ goto err3;
++
+ /* rxin ring */
+ ring = &soc_rings->rxin;
+- ring_init(tcpriv, ring, rxin, RXIN, dnum, size);
++ dnum = ring_dnum(tcpriv, rxin, RXIN);
++ ret |= ring_init(tcpriv, ring, dnum, sizeof(struct dma_rx_desc));
++ if (ret < 0)
++ goto err2;
++
+ /* rxout ring */
+ ring = &soc_rings->rxout;
+- ring_init(tcpriv, ring, rxout, RXOUT, dnum, size);
++ dnum = ring_dnum(tcpriv, rxout, RXOUT);
++ ret = ring_init(tcpriv, ring, dnum, sizeof(struct dma_rx_desc));
++ if (ret < 0)
++ goto err1;
++
++ for (i = 0; i < EP_MAX_NUM && i < tcpriv->ep_num; i++) {
++
++ /* Enable RX interrupt */
++ tcpriv->ep_dev[i].hw_ops->icu_en(&tcpriv->ep_dev[i], ACA_HOSTIF_RX);
++
++ /* Enable TX interrupt */
++ tcpriv->ep_dev[i].hw_ops->icu_en(&tcpriv->ep_dev[i], ACA_HOSTIF_TX);
++ }
+
+ return 0;
++
++err1:
++ ring_free(tcpriv, &soc_rings->rxin);
++err2:
++ ring_free(tcpriv, &soc_rings->txout);
++err3:
++ ring_free(tcpriv, &soc_rings->txin);
++err4:
++ txlist_free(&soc_rings->txlist);
++err5:
++ return ret;
+ }
+
+ /**
+@@ -850,6 +933,26 @@ static int plat_dp_init(struct plat_priv
+ */
+ static void plat_dp_exit(struct plat_priv *priv)
+ {
++ struct tc_priv *tcpriv = priv->tc_priv;
++ struct aca_ring_grp *soc_rings = &priv->soc_rings;
++ int i;
++
++ for (i = 0; i < EP_MAX_NUM && i < tcpriv->ep_num; i++) {
++
++ /* Disable RX interrupt */
++ tcpriv->ep_dev[i].hw_ops->icu_mask(&tcpriv->ep_dev[i], ACA_HOSTIF_RX);
++
++ /* Disable TX interrupt */
++ tcpriv->ep_dev[i].hw_ops->icu_mask(&tcpriv->ep_dev[i], ACA_HOSTIF_TX);
++ }
++
++ ring_free(tcpriv, &soc_rings->txin);
++ ring_free(tcpriv, &soc_rings->txout);
++ ring_free(tcpriv, &soc_rings->rxin);
++ ring_free(tcpriv, &soc_rings->rxout);
++
++ txlist_free(&soc_rings->txlist);
++
+ return;
+ }
+
+@@ -858,45 +961,45 @@ static int plat_soc_cfg_get(struct soc_c
+ struct plat_priv *priv = g_plat_priv;
+
+ /* TXIN */
+- cfg->txin_dbase = priv->soc_rings.txin.dbase_phymem;
+- cfg->txin_dnum = priv->soc_rings.txin.dnum;
+- cfg->txin_desc_dwsz = DW_SZ(struct dma_desc);
+- cfg->txin_cnt_phyaddr = priv->soc_rings.txin.cnt_phyaddr;
++ cfg->txin.soc_phydbase = priv->soc_rings.txin.dbase_phymem;
++ cfg->txin.soc_dnum = priv->soc_rings.txin.dnum;
++ cfg->txin.soc_desc_dwsz = DW_SZ(struct dma_tx_desc);
+ /* TXOUT */
+- cfg->txout_dbase = priv->soc_rings.txout.dbase_phymem;
+- cfg->txout_dnum = priv->soc_rings.txout.dnum;
+- cfg->txout_desc_dwsz = DW_SZ(struct dma_desc);
+- cfg->txout_cnt_phyaddr = priv->soc_rings.txout.cnt_phyaddr;
++ cfg->txout.soc_phydbase = priv->soc_rings.txout.dbase_phymem;
++ cfg->txout.soc_dnum = priv->soc_rings.txout.dnum;
++ cfg->txout.soc_desc_dwsz = DW_SZ(u32);
+ /* RXOUT */
+- cfg->rxout_dbase = priv->soc_rings.rxout.dbase_phymem;
+- cfg->rxout_dnum = priv->soc_rings.rxout.dnum;
+- cfg->rxout_desc_dwsz = DW_SZ(struct dma_desc);
+- cfg->rxout_cnt_phyaddr = priv->soc_rings.rxout.cnt_phyaddr;
++ cfg->rxout.soc_phydbase = priv->soc_rings.rxout.dbase_phymem;
++ cfg->rxout.soc_dnum = priv->soc_rings.rxout.dnum;
++ cfg->rxout.soc_desc_dwsz = DW_SZ(struct dma_rx_desc);
+ /* RXIN */
+- cfg->rxin_dbase = priv->soc_rings.rxin.dbase_phymem;
+- cfg->rxin_dnum = priv->soc_rings.rxin.dnum;
+- cfg->rxin_desc_dwsz = DW_SZ(struct dma_desc);
+- cfg->rxin_cnt_phyaddr = priv->soc_rings.rxin.cnt_phyaddr;
++ cfg->rxin.soc_phydbase = priv->soc_rings.rxin.dbase_phymem;
++ cfg->rxin.soc_dnum = priv->soc_rings.rxin.dnum;
++ cfg->rxin.soc_desc_dwsz = DW_SZ(struct dma_rx_desc);
+
+ tc_info(priv->tc_priv, MSG_INIT,
+ "id: %d, txin(0x%x: %d, 0x%x), txout(0x%x: %d, 0x%x), rxin(0x%x: %d, 0x%x), rxout(0x%x: %d, 0x%x)\n",
+- id, cfg->txin_dbase, cfg->txin_dnum, cfg->txin_cnt_phyaddr,
+- cfg->txout_dbase, cfg->txout_dnum, cfg->txout_cnt_phyaddr,
+- cfg->rxin_dbase, cfg->rxout_dnum, cfg->rxin_cnt_phyaddr,
+- cfg->rxout_dbase, cfg->rxout_dnum, cfg->rxout_cnt_phyaddr);
++ id, cfg->txin.soc_phydbase, cfg->txin.soc_dnum, cfg->txin.soc_cnt_phyaddr,
++ cfg->txout.soc_phydbase, cfg->txout.soc_dnum, cfg->txout.soc_cnt_phyaddr,
++ cfg->rxin.soc_phydbase, cfg->rxin.soc_dnum, cfg->rxin.soc_cnt_phyaddr,
++ cfg->rxout.soc_phydbase, cfg->rxout.soc_dnum, cfg->rxout.soc_cnt_phyaddr);
+
+ return 0;
+ }
+
+-static int plat_open(struct net_device *pdev, char *dev_name,
+- int *subif, int flag)
++static int plat_open(struct net_device *pdev, const char *dev_name,
++ int id, int flag)
+ {
++ g_plat_priv->netdev = pdev;
++
+ return 0;
+ }
+
+-static void plat_close(struct net_device *pdev, char *dev_name,
+- int subif, int flag)
++static void plat_close(struct net_device *pdev, const char *dev_name,
++ int flag)
+ {
++ g_plat_priv->netdev = NULL;
++
+ return;
+ }
+
+@@ -971,7 +1074,6 @@ static void plat_disable_us(int en)
+ static int plat_get_mib(struct net_device *pdev,
+ struct rtnl_link_stats64 *stat)
+ {
+- pr_info("%s is not supported\n", __func__);
+ return -ENOTSUPP;
+ }
+
+@@ -1181,8 +1283,8 @@ int platform_init(struct tc_priv *tc_pri
+ INIT_WORK(&priv->req_work.work, plat_tc_req_workqueue);
+ tasklet_init(&txout_task, plat_txout_tasklet, 0);
+ tasklet_init(&rxout_task, plat_rxout_tasklet, 0);
+- irq_init(tc_priv, drv_name);
+- //tasklet_init(&priv->coc.coc_task, plat_coc_tasklet, 0);
++ plat_irq_init(tc_priv, drv_name);
++
+ plat_tc_ops_setup(tc_priv);
+ plat_dsl_ops_setup();
+
+@@ -1201,8 +1303,15 @@ void platform_dsl_exit(void)
+
+ void platform_exit(void)
+ {
+- //tasklet_kill(&g_plat_priv->coc.coc_task);
++ struct tc_priv *tcpriv = plat_to_tcpriv();
++
++ tasklet_kill(&txout_task);
++ tasklet_kill(&rxout_task);
++
++ plat_irq_free(tcpriv);
++
+ plat_dp_exit(g_plat_priv);
++
+ g_plat_priv = NULL;
+ }
+
diff --git a/package/kernel/lantiq/vrx518_tc/patches/201-desc-length.patch b/package/kernel/lantiq/vrx518_tc/patches/201-desc-length.patch
new file mode 100644
index 0000000000..8b30914df9
--- /dev/null
+++ b/package/kernel/lantiq/vrx518_tc/patches/201-desc-length.patch
@@ -0,0 +1,342 @@
+Port FEATURE_CONF_DESC_LENGTH from the grx500 variant of the driver.
+This also reduces the default length of some descriptors, resulting in
+significantly lower latencies when the line is saturated.
+
+--- a/dcdp/inc/tc_common.h
++++ b/dcdp/inc/tc_common.h
+@@ -27,7 +27,11 @@
+ #define UMT_DEF_PERIOD 400 /* microseconds */
+
+ #define MAX_MTU (DMA_PACKET_SZ - ETH_HLEN - HD_RSRV_SZ)
++#ifdef FEATURE_CONF_DESC_LENGTH
++#define QOSQ_NUM 8
++#else
+ #define QOSQ_NUM 2
++#endif
+ #define FW_STOP_TIMEOUT 20 /* millisecond */
+ #define QOS_DISPATCH_OWN 0
+ #define ACA_TXIN_POLL_INTVAL 10 /* millisecond */
+--- a/dcdp/inc/tc_main.h
++++ b/dcdp/inc/tc_main.h
+@@ -30,6 +30,7 @@
+ #define TCPRIV_ALIGN 32
+ #define DMA_PACKET_SZ 2048
+
++#define FEATURE_CONF_DESC_LENGTH 1
+ #define FEATURE_POWER_DOWN 1
+
+ enum {
+@@ -157,6 +158,25 @@ struct tc_param {
+ unsigned int txout_dnum;
+ unsigned int rxin_dnum;
+ unsigned int rxout_dnum;
++
++#ifdef FEATURE_CONF_DESC_LENGTH
++ /* __US_FAST_PATH_DES_LIST_NUM:64
++ * __ACA_TX_IN_PD_LIST_NUM
++ * __ACA_TX_OUT_PD_LIST_NUM
++ * */
++ u32 conf_us_fp_desq_len;
++ /*
++ * Number of queue per QoS queue: QOS_DES_NUM / QOSQ_NUM
++ * */
++ u32 conf_us_qos_queue_len;
++ /* __US_OUTQ0_DES_LIST_NUM: 32
++ * __US_OUTQ1_DES_LIST_NUM: 32
++ * OUTQ_DESC_PER_Q
++ * */
++ u32 conf_us_outq_len;
++ /**/
++ u32 conf_us_local_q0_desq_len;
++#endif
+ };
+
+ struct cdma {
+--- a/dcdp/ptm_tc.c
++++ b/dcdp/ptm_tc.c
+@@ -75,7 +75,11 @@ static const u32 tx_kvec[] = {
+ 0x30B1B233, 0xB43536B7, 0xB8393ABB, 0x3CBDBE3F,
+ 0xC04142C3, 0x44C5C647, 0x48C9CA4B, 0xCC4D4ECF
+ };
++#ifndef FEATURE_CONF_DESC_LENGTH
+ static const u32 def_outq_map[OUTQ_PNUM] = {0x1, 0xFE};
++#else
++static const u32 def_outq_map[OUTQ_PNUM] = {0x0, 0xFF};
++#endif
+ static const char ptm_drv_name[] = "PTM SL";
+ static const char ptm_bond_name[][IFNAMSIZ] = {"PTM US BOND", "PTM DS BOND"};
+
+@@ -1005,6 +1009,10 @@ static void us_fp_desq_cfg_ctxt_init(str
+ int i;
+ u32 desc_addr;
+ rx_descriptor_t desc;
++#ifdef FEATURE_CONF_DESC_LENGTH
++ struct tc_priv *tc_priv;
++ tc_priv = priv->tc_priv;
++#endif
+
+ memset(&desq_cfg, 0, sizeof(desq_cfg));
+ /* Initialize US Fast-Path Descriptor Queue Config/Context */
+@@ -1012,7 +1020,11 @@ static void us_fp_desq_cfg_ctxt_init(str
+ desq_cfg.fast_path = 1;
+ desq_cfg.mbox_int_en = 0;
+ desq_cfg.des_sync_needed = 0;
++#ifndef FEATURE_CONF_DESC_LENGTH
+ desq_cfg.des_num = __US_FAST_PATH_DES_LIST_NUM;
++#else
++ desq_cfg.des_num = tc_priv->param.conf_us_fp_desq_len;
++#endif
+ desq_cfg.des_base_addr = __US_FAST_PATH_DES_LIST_BASE;
+
+ tc_mem_write(priv, fpi_addr(__US_FP_INQ_DES_CFG_CTXT),
+@@ -1036,12 +1048,20 @@ static void us_qos_desq_cfg_ctxt_init(st
+ int offset, i;
+ rx_descriptor_t desc;
+ u32 phy_addr;
++#ifdef FEATURE_CONF_DESC_LENGTH
++ struct tc_priv *tc_priv;
++ tc_priv = priv->tc_priv;
++#endif
+
+ /* Setup QoSQ_CFG_CTXT */
+ memset(&qosq_cfg_ctxt, 0, sizeof(qosq_cfg_ctxt));
+
+ qosq_cfg_ctxt.threshold = 8;
++#ifdef FEATURE_CONF_DESC_LENGTH
++ qosq_cfg_ctxt.des_num = tc_priv->param.conf_us_qos_queue_len;
++#else
+ qosq_cfg_ctxt.des_num = QOS_DES_NUM / QOSQ_NUM;
++#endif
+
+ offset = 0;
+ for (i = 0; i < QOSQ_NUM; i++) {
+@@ -1080,6 +1100,10 @@ static void us_outq_desq_cfg_ctxt_init(s
+ u32 phy_addr;
+ int i;
+ u32 offset;
++#ifdef FEATURE_CONF_DESC_LENGTH
++ struct tc_priv *tc_priv;
++ tc_priv = priv->tc_priv;
++#endif
+
+ /* Setup OUTQ_QoS_CFG_CTXT */
+ /* NOTE: By default, Shaping & WFQ both are DISABLED!! */
+@@ -1108,7 +1132,11 @@ static void us_outq_desq_cfg_ctxt_init(s
+ desq_cfg.des_in_own_val = US_OUTQ_DES_OWN;
+ desq_cfg.mbox_int_en = 0;
+ desq_cfg.des_sync_needed = 0;
+- desq_cfg.des_num = 32;
++#ifndef FEATURE_CONF_DESC_LENGTH
++ desq_cfg.des_num = OUTQ_DESC_PER_Q;
++#else
++ desq_cfg.des_num = tc_priv->param.conf_us_outq_len;
++#endif
+ /**
+ * Only BC0 is used in VRX518
+ */
+@@ -1174,7 +1202,11 @@ static void us_qos_cfg_init(struct ptm_e
+ /* Set QoS NO DROP */
+ sb_w32(1, __QOSQ_NO_DROP);
+ /* Enable Preemption function/Disable QoS by default */
++#ifdef FEATURE_CONF_DESC_LENGTH
++ sb_w32(0, _CHK_PREEMP_MAP);
++#else
+ sb_w32(1, _CHK_PREEMP_MAP);
++#endif
+ /* By default, all qid mappint to non-preemption queue */
+ sb_w32(0x0, _QID2PREEMP_MAP);
+
+@@ -1376,6 +1408,11 @@ static void ptm_local_desq_cfg_ctxt_init
+ u32 dcnt, addr, pdbram_base;
+ unsigned int us_des_alloc[] = {
+ __US_TC_LOCAL_Q0_DES_LIST_NUM, __US_TC_LOCAL_Q1_DES_LIST_NUM};
++#ifdef FEATURE_CONF_DESC_LENGTH
++ struct tc_priv *tc_priv;
++ tc_priv = priv->tc_priv;
++ us_des_alloc[0] = tc_priv->param.conf_us_local_q0_desq_len;
++#endif
+
+ /* Setup the Local DESQ Configuration/Context for UpStream Queues */
+ memset(&desq_cfg, 0, sizeof(desq_cfg));
+@@ -2321,6 +2358,10 @@ static void ptm_aca_init(struct ptm_ep_p
+ u32 phybase = priv->ep->phy_membase;
+ u32 start;
+ u32 type;
++#ifdef FEATURE_CONF_DESC_LENGTH
++ struct tc_priv *tc_priv;
++ tc_priv = priv->tc_priv;
++#endif
+
+ priv->tc_priv->tc_ops.soc_cfg_get(&priv->tc_priv->cfg, ptm_id(priv));
+ memset(¶m, 0, sizeof(param));
+@@ -2334,7 +2375,11 @@ static void ptm_aca_init(struct ptm_ep_p
+ #endif
+ txin->hd_size_in_dw = cfg->txin.soc_desc_dwsz;
+ txin->pd_desc_base = SB_XBAR_ADDR(__ACA_TX_IN_PD_LIST_BASE);
++#ifndef FEATURE_CONF_DESC_LENGTH
+ txin->pd_desc_num = __ACA_TX_IN_PD_LIST_NUM;
++#else
++ txin->pd_desc_num = tc_priv->param.conf_us_fp_desq_len;
++#endif
+ txin->pd_size_in_dw = DESC_DWSZ;
+ txin->soc_desc_base = cfg->txin.soc_phydbase;
+ txin->soc_desc_num = cfg->txin.soc_dnum;
+--- a/dcdp/tc_main.c
++++ b/dcdp/tc_main.c
+@@ -182,6 +182,12 @@ static inline void init_local_param(stru
+ priv->param.txout_dnum = txout_num;
+ priv->param.rxin_dnum = rxin_num;
+ priv->param.rxout_dnum = rxout_num;
++#ifdef FEATURE_CONF_DESC_LENGTH
++ priv->param.conf_us_fp_desq_len = 32;
++ priv->param.conf_us_qos_queue_len = 32;
++ priv->param.conf_us_outq_len = 32;
++ priv->param.conf_us_local_q0_desq_len = 16;
++#endif
+ priv->tc_mode = TC_NONE_MODE;
+ priv->tc_stat = NO_TC;
+
+--- a/dcdp/tc_proc.c
++++ b/dcdp/tc_proc.c
+@@ -1114,6 +1114,9 @@ static int proc_read_ver(struct seq_file
+ (date >> 16) & 0xff,
+ (date & 0xffff));
+
++#ifdef FEATURE_CONF_DESC_LENGTH
++ seq_puts(seq, " + Support QoS and Configurable descriptor length\n");
++#endif
+ #ifdef FEATURE_POWER_DOWN
+ seq_puts(seq, " + Support Power Down enhancement feature\n");
+ #endif
+@@ -1166,6 +1169,113 @@ static const struct proc_ops tc_soc_proc
+ .proc_release = single_release,
+ };
+
++#ifdef FEATURE_CONF_DESC_LENGTH
++static ssize_t proc_write_desc_conf(struct file *file, const char __user *buf,
++ size_t count, loff_t *data)
++{
++ struct tc_priv *priv;
++ char str[32];
++ int len, rlen, temp;
++ int num, temp_num;
++ char *param_list[20];
++ len = count < sizeof(str) ? count : sizeof(str) - 1;
++ rlen = len - copy_from_user(str, buf, len);
++ str[rlen] = 0;
++
++ if (!capable(CAP_SYS_ADMIN))
++ return -EPERM;
++
++ priv = (struct tc_priv *)PDE_DATA(file_inode(file));
++ if (priv == NULL)
++ return count;
++
++ num = vrx_split_buffer(str, param_list, ARRAY_SIZE(param_list));
++ if (num < 1 || num > 4)
++ goto proc_dbg_desc_conf;
++
++ temp_num = num;
++ if (num-- != 0) {
++ temp = vrx_atoi(param_list[0]);
++ if (temp < 1 || temp > 128) {
++ pr_info("Fastpath valid range: 1 -> 128\n");
++ goto proc_dbg_desc_conf;
++ }
++ }
++ if (num-- != 0) {
++ temp = vrx_atoi(param_list[1]);
++ if (temp < 1 || temp > 63) {
++ pr_info("QoS valid range: 1 -> 63\n");
++ goto proc_dbg_desc_conf;
++ }
++ }
++ if (num-- != 0) {
++ temp = vrx_atoi(param_list[2]);
++ if (temp < 1 || temp > 128) {
++ pr_info("OutQ valid range: 1 -> 128\n");
++ goto proc_dbg_desc_conf;
++ }
++ }
++ if (num-- != 0) {
++ temp = vrx_atoi(param_list[3]);
++ if (temp < 4 || temp > 16) {
++ pr_info("Local Q0 valid range: 4 -> 16\n");
++ goto proc_dbg_desc_conf;
++ }
++ }
++ num = temp_num;
++ if (num-- != 0) {
++ priv->param.conf_us_fp_desq_len = vrx_atoi(param_list[0]);
++ }
++ if (num-- != 0) {
++ priv->param.conf_us_qos_queue_len = vrx_atoi(param_list[1]);
++ }
++ if (num-- != 0) {
++ priv->param.conf_us_outq_len = vrx_atoi(param_list[2]);
++ }
++ if (num-- != 0) {
++ priv->param.conf_us_local_q0_desq_len = vrx_atoi(param_list[3]);
++ }
++
++ return count;
++
++proc_dbg_desc_conf:
++ pr_info("echo [FP] [QoS] [OutQ] [LocalQ0]> desc_conf\n");
++ return count;
++}
++
++static int proc_read_desc_conf(struct seq_file *seq, void *v)
++{
++ struct tc_priv *priv;
++ priv = (struct tc_priv *)seq->private;
++ if (priv == NULL)
++ return -1;
++ seq_puts(seq, "Upstream descriptor length information:\n");
++ seq_printf(seq, " - Fastpath: %d\n",
++ priv->param.conf_us_fp_desq_len);
++ seq_printf(seq, " - QoS: %d\n",
++ priv->param.conf_us_qos_queue_len);
++ seq_printf(seq, " - OutQ: %d\n",
++ priv->param.conf_us_outq_len);
++ seq_printf(seq, " - Local Q0: %d\n",
++ priv->param.conf_us_local_q0_desq_len);
++ seq_puts(seq, "\n");
++ return 0;
++}
++
++static int proc_read_desc_conf_seq_open(struct inode *inode, struct file *file)
++{
++ return single_open(file, proc_read_desc_conf, PDE_DATA(inode));
++}
++#endif
++
++static const struct proc_ops tc_desc_conf_proc_fops = {
++ .proc_open = proc_read_desc_conf_seq_open,
++ .proc_read = seq_read,
++ .proc_write = proc_write_desc_conf,
++ .proc_lseek = seq_lseek,
++ .proc_release = single_release,
++};
++
+ static struct tc_proc_list tc_procs[] = {
+ {TC_PROC_DIR, 0, NULL, 1},
+ {"cfg", 0644, &tc_cfg_proc_fops, 0},
+@@ -1174,6 +1284,9 @@ static struct tc_proc_list tc_procs[] =
+ {"showtime", 0200, &tc_show_time_proc_fops, 0},
+ {"ver", 0644, &tc_ver_proc_fops, 0},
+ {"soc", 0644, &tc_soc_proc_fops, 0},
++#ifdef FEATURE_CONF_DESC_LENGTH
++ {"desc_conf", 0644, &tc_desc_conf_proc_fops, 0},
++#endif
+ };
+
+ int tc_proc_init(struct tc_priv *priv)
+@@ -1333,7 +1446,6 @@ proc_ptm_cfg_help:
+ return count;
+ }
+
+-
+ static const struct proc_ops ptm_cfg_proc_fops = {
+ .proc_open = proc_read_cfg_seq_open,
+ .proc_read = seq_read,
diff --git a/package/kernel/lantiq/vrx518_tc/patches/202-napi.patch b/package/kernel/lantiq/vrx518_tc/patches/202-napi.patch
new file mode 100644
index 0000000000..55f0cc1066
--- /dev/null
+++ b/package/kernel/lantiq/vrx518_tc/patches/202-napi.patch
@@ -0,0 +1,423 @@
+--- a/dcdp/platform/sw_plat.c
++++ b/dcdp/platform/sw_plat.c
+@@ -208,6 +208,8 @@ struct plat_priv {
+ struct tc_req req_work;
+ struct aca_ring_grp soc_rings;
+ struct net_device *netdev;
++ struct napi_struct *napi_tx;
++ struct napi_struct *napi_rx;
+ DECLARE_HASHTABLE(mem_map, 8);
+ };
+
+@@ -472,7 +474,7 @@ err2:
+ return -1;
+ }
+
+-static void txout_action(struct tc_priv *priv, struct aca_ring *txout)
++static int txout_action(struct tc_priv *priv, struct aca_ring *txout, int budget)
+ {
+ struct aca_ring *txin = &g_plat_priv->soc_rings.txin;
+ struct tx_list *txlist = &g_plat_priv->soc_rings.txlist;
+@@ -490,7 +492,10 @@ static void txout_action(struct tc_priv
+ spin_lock_irqsave(&tx_spinlock, flags);
+ }
+
+- for (i = 0; i < txout->dnum; i++) {
++ if (budget == 0 || budget > txout->dnum)
++ budget = txout->dnum;
++
++ for (i = 0; i < budget; i++) {
+ desc = txout->dbase_mem;
+ desc += txout->idx;
+
+@@ -540,6 +545,8 @@ static void txout_action(struct tc_priv
+ if (cnt && g_plat_priv->netdev && netif_queue_stopped(g_plat_priv->netdev)) {
+ netif_wake_queue(g_plat_priv->netdev);
+ }
++
++ return cnt;
+ }
+
+ static void rxin_action(struct tc_priv *priv,
+@@ -549,7 +556,7 @@ static void rxin_action(struct tc_priv *
+ writel(cnt, rxin->umt_dst);
+ }
+
+-static int rxout_action(struct tc_priv *priv, struct aca_ring *rxout)
++static int rxout_action(struct tc_priv *priv, struct aca_ring *rxout, int budget)
+ {
+ struct device *pdev = priv->ep_dev[0].dev;
+ int i, cnt;
+@@ -559,8 +566,11 @@ static int rxout_action(struct tc_priv *
+ size_t len;
+ struct sk_buff *skb;
+
++ if (budget == 0 || budget > rxout->dnum)
++ budget = rxout->dnum;
++
+ cnt = 0;
+- for (i = 0; i < rxout->dnum; i++) {
++ for (i = 0; i < budget; i++) {
+ desc = rxout->dbase_mem;
+ desc += rxout->idx;
+
+@@ -593,14 +603,30 @@ static int rxout_action(struct tc_priv *
+ ring_idx_inc(rxout);
+ }
+
+- if (!cnt)
+- tc_err(priv, MSG_RX, "RXOUT spurious interrupt\n");
+- else
++ if (cnt)
+ writel(cnt, rxout->umt_dst+0x28); // RXOUT_HD_ACCUM_SUB instead of RXOUT_HD_ACCUM_ADD
+
+ return cnt;
+ }
+
++static int plat_txout_napi(struct napi_struct *napi, int budget)
++{
++ struct plat_priv *priv = g_plat_priv;
++ struct tc_priv *tcpriv = plat_to_tcpriv();
++ struct aca_ring *txout = &priv->soc_rings.txout;
++ struct dc_ep_dev *ep_dev = &tcpriv->ep_dev[txout->ep_dev_idx];
++ int cnt;
++
++ cnt = txout_action(tcpriv, txout, budget);
++
++ if (cnt < budget) {
++ if (napi_complete_done(napi, cnt))
++ ep_dev->hw_ops->icu_en(ep_dev, ACA_HOSTIF_TX);
++ }
++
++ return cnt;
++}
++
+ static void plat_txout_tasklet(unsigned long arg)
+ {
+ struct plat_priv *priv = g_plat_priv;
+@@ -608,12 +634,33 @@ static void plat_txout_tasklet(unsigned
+ struct aca_ring *txout = &priv->soc_rings.txout;
+ struct dc_ep_dev *ep_dev = &tcpriv->ep_dev[txout->ep_dev_idx];
+
+- txout_action(tcpriv, txout);
++ txout_action(tcpriv, txout, 0);
+
+ /* Enable interrupt */
+ ep_dev->hw_ops->icu_en(ep_dev, ACA_HOSTIF_TX);
+ }
+
++static int plat_rxout_napi(struct napi_struct *napi, int budget)
++{
++ struct plat_priv *priv = g_plat_priv;
++ struct tc_priv *tcpriv = plat_to_tcpriv();
++ struct aca_ring *rxout = &priv->soc_rings.rxout;
++ struct aca_ring *rxin = &priv->soc_rings.rxin;
++ struct dc_ep_dev *ep_dev = &tcpriv->ep_dev[rxout->ep_dev_idx];
++ int cnt;
++
++ cnt = rxout_action(tcpriv, rxout, budget);
++ if (cnt)
++ rxin_action(tcpriv, rxin, DMA_PACKET_SZ, cnt);
++
++ if (cnt < budget) {
++ if (napi_complete_done(napi, cnt))
++ ep_dev->hw_ops->icu_en(ep_dev, ACA_HOSTIF_RX);
++ }
++
++ return cnt;
++}
++
+ static void plat_rxout_tasklet(unsigned long arg)
+ {
+ struct plat_priv *priv = g_plat_priv;
+@@ -623,7 +670,7 @@ static void plat_rxout_tasklet(unsigned
+ struct dc_ep_dev *ep_dev = &tcpriv->ep_dev[rxout->ep_dev_idx];
+ int cnt;
+
+- cnt = rxout_action(tcpriv, rxout);
++ cnt = rxout_action(tcpriv, rxout, 0);
+ if (cnt)
+ rxin_action(tcpriv, rxin, DMA_PACKET_SZ, cnt);
+
+@@ -783,11 +830,22 @@ static irqreturn_t aca_rx_irq_handler(in
+ {
+ struct dc_ep_dev *ep_dev = dev_id;
+
+- /* Disable IRQ in IMCU */
+- ep_dev->hw_ops->icu_mask(ep_dev, ACA_HOSTIF_RX);
++ if (g_plat_priv->napi_rx) {
++
++ if (napi_schedule_prep(g_plat_priv->napi_rx)) {
++ ep_dev->hw_ops->icu_mask(ep_dev, ACA_HOSTIF_RX);
++ __napi_schedule(g_plat_priv->napi_rx);
++ }
++
++ } else {
++
++ /* Disable IRQ in IMCU */
++ ep_dev->hw_ops->icu_mask(ep_dev, ACA_HOSTIF_RX);
+
+- /* Start tasklet */
+- tasklet_schedule(&rxout_task);
++ /* Start tasklet */
++ tasklet_schedule(&rxout_task);
++
++ }
+
+ return IRQ_HANDLED;
+ }
+@@ -796,15 +854,62 @@ static irqreturn_t aca_tx_irq_handler(in
+ {
+ struct dc_ep_dev *ep_dev = dev_id;
+
+- /* Disable IRQ in IMCU */
+- ep_dev->hw_ops->icu_mask(ep_dev, ACA_HOSTIF_TX);
++ if (g_plat_priv->napi_tx) {
+
+- /* Start tasklet */
+- tasklet_schedule(&txout_task);
++ if (napi_schedule_prep(g_plat_priv->napi_tx)) {
++ ep_dev->hw_ops->icu_mask(ep_dev, ACA_HOSTIF_TX);
++ __napi_schedule(g_plat_priv->napi_tx);
++ }
++
++ } else {
++
++ /* Disable IRQ in IMCU */
++ ep_dev->hw_ops->icu_mask(ep_dev, ACA_HOSTIF_TX);
++
++ /* Start tasklet */
++ tasklet_schedule(&txout_task);
++
++ }
+
+ return IRQ_HANDLED;
+ }
+
++static void plat_net_open(void)
++{
++ struct plat_priv *priv = g_plat_priv;
++ struct tc_priv *tcpriv = plat_to_tcpriv();
++ struct aca_ring *rxout = &priv->soc_rings.rxout;
++ struct aca_ring *txout = &priv->soc_rings.txout;
++ struct dc_ep_dev *ep_dev_rx = &tcpriv->ep_dev[rxout->ep_dev_idx];
++ struct dc_ep_dev *ep_dev_tx = &tcpriv->ep_dev[txout->ep_dev_idx];
++
++ if (priv->napi_rx)
++ napi_enable(priv->napi_rx);
++ ep_dev_rx->hw_ops->icu_en(ep_dev_rx, ACA_HOSTIF_RX);
++
++ if (priv->napi_tx)
++ napi_enable(priv->napi_tx);
++ ep_dev_tx->hw_ops->icu_en(ep_dev_tx, ACA_HOSTIF_TX);
++}
++
++static void plat_net_stop(void)
++{
++ struct plat_priv *priv = g_plat_priv;
++ struct tc_priv *tcpriv = plat_to_tcpriv();
++ struct aca_ring *rxout = &priv->soc_rings.rxout;
++ struct aca_ring *txout = &priv->soc_rings.txout;
++ struct dc_ep_dev *ep_dev_rx = &tcpriv->ep_dev[rxout->ep_dev_idx];
++ struct dc_ep_dev *ep_dev_tx = &tcpriv->ep_dev[txout->ep_dev_idx];
++
++ if (priv->napi_tx)
++ napi_disable(priv->napi_tx);
++ ep_dev_tx->hw_ops->icu_mask(ep_dev_tx, ACA_HOSTIF_TX);
++
++ if (priv->napi_rx)
++ napi_disable(priv->napi_rx);
++ ep_dev_rx->hw_ops->icu_mask(ep_dev_rx, ACA_HOSTIF_RX);
++}
++
+ static void plat_irq_init(struct tc_priv *priv, const char *dev_name)
+ {
+ int ret;
+@@ -988,17 +1093,49 @@ static int plat_soc_cfg_get(struct soc_c
+ }
+
+ static int plat_open(struct net_device *pdev, const char *dev_name,
++ struct napi_struct *napi_tx, struct napi_struct *napi_rx,
+ int id, int flag)
+ {
++ struct tc_priv *priv = g_plat_priv->tc_priv;
++ int i;
++
++ for (i = 0; i < EP_MAX_NUM && i < priv->ep_num; i++) {
++ disable_irq(priv->ep_dev[i].aca_rx_irq);
++ disable_irq(priv->ep_dev[i].aca_tx_irq);
++ }
++
+ g_plat_priv->netdev = pdev;
++ g_plat_priv->napi_tx = napi_tx;
++ g_plat_priv->napi_rx = napi_rx;
++
++ for (i = 0; i < EP_MAX_NUM && i < priv->ep_num; i++) {
++ enable_irq(priv->ep_dev[i].aca_rx_irq);
++ enable_irq(priv->ep_dev[i].aca_tx_irq);
++ }
+
+ return 0;
+ }
+
+ static void plat_close(struct net_device *pdev, const char *dev_name,
++ struct napi_struct *napi_tx, struct napi_struct *napi_rx,
+ int flag)
+ {
++ struct tc_priv *priv = g_plat_priv->tc_priv;
++ int i;
++
++ for (i = 0; i < EP_MAX_NUM && i < priv->ep_num; i++) {
++ disable_irq(priv->ep_dev[i].aca_rx_irq);
++ disable_irq(priv->ep_dev[i].aca_tx_irq);
++ }
++
+ g_plat_priv->netdev = NULL;
++ g_plat_priv->napi_tx = NULL;
++ g_plat_priv->napi_rx = NULL;
++
++ for (i = 0; i < EP_MAX_NUM && i < priv->ep_num; i++) {
++ enable_irq(priv->ep_dev[i].aca_rx_irq);
++ enable_irq(priv->ep_dev[i].aca_tx_irq);
++ }
+
+ return;
+ }
+@@ -1084,6 +1221,10 @@ static void plat_tc_ops_setup(struct tc_
+ priv->tc_ops.free = plat_mem_free;
+ priv->tc_ops.dev_reg = plat_open;
+ priv->tc_ops.dev_unreg = plat_close;
++ priv->tc_ops.net_open = plat_net_open;
++ priv->tc_ops.net_stop = plat_net_stop;
++ priv->tc_ops.napi_tx = plat_txout_napi;
++ priv->tc_ops.napi_rx = plat_rxout_napi;
+ priv->tc_ops.umt_init = plat_umt_init;
+ priv->tc_ops.umt_exit = plat_umt_exit;
+ priv->tc_ops.umt_start = plat_umt_start;
+--- a/dcdp/atm_tc.c
++++ b/dcdp/atm_tc.c
+@@ -3650,7 +3650,7 @@ static void atm_aca_ring_config_init(str
+ static int atm_ring_init(struct atm_priv *priv)
+ {
+ atm_aca_ring_config_init(priv);
+- return priv->tc_priv->tc_ops.dev_reg(NULL, g_atm_dev_name, 0, 0);
++ return priv->tc_priv->tc_ops.dev_reg(NULL, g_atm_dev_name, NULL, NULL, 0, 0);
+ }
+
+ static int atm_init(struct tc_priv *tcpriv, u32 ep_id)
+@@ -4020,7 +4020,7 @@ void atm_tc_unload(void)
+ /* unregister device */
+ if (priv->tc_priv->tc_ops.dev_unreg != NULL)
+ priv->tc_priv->tc_ops.dev_unreg(NULL,
+- g_atm_dev_name, 0);
++ g_atm_dev_name, NULL, NULL, 0);
+
+ /* atm_dev_deinit(priv); */
+ /* modem module power off */
+--- a/dcdp/inc/tc_main.h
++++ b/dcdp/inc/tc_main.h
+@@ -209,9 +209,15 @@ struct tc_hw_ops {
+ void (*subif_unreg)(struct net_device *pdev, const char *dev_name,
+ int subif_id, int flag);
+ int (*dev_reg)(struct net_device *pdev, const char *dev_name,
++ struct napi_struct *napi_tx, struct napi_struct *napi_rx,
+ int id, int flag);
+ void (*dev_unreg)(struct net_device *pdev, const char *dev_name,
++ struct napi_struct *napi_tx, struct napi_struct *napi_rx,
+ int flag);
++ void (*net_open)(void);
++ void (*net_stop)(void);
++ int (*napi_tx)(struct napi_struct *napi, int budget);
++ int (*napi_rx)(struct napi_struct *napi, int budget);
+
+ /*umt init/exit including the corresponding DMA init/exit */
+ int (*umt_init)(u32 umt_id, u32 umt_period, u32 umt_dst);
+--- a/dcdp/ptm_tc.c
++++ b/dcdp/ptm_tc.c
+@@ -141,7 +141,11 @@ static int ptm_open(struct net_device *d
+ struct ptm_priv *ptm_tc = netdev_priv(dev);
+
+ tc_info(ptm_tc->tc_priv, MSG_EVENT, "ptm open\n");
++
++ ptm_tc->tc_priv->tc_ops.net_open();
++
+ netif_tx_start_all_queues(dev);
++
+ #ifdef CONFIG_SOC_TYPE_XWAY
+ xet_phy_wan_port(7, NULL, 1, 1);
+ if (ppa_hook_ppa_phys_port_add_fn)
+@@ -158,7 +162,11 @@ static int ptm_stop(struct net_device *d
+ struct ptm_priv *ptm_tc = netdev_priv(dev);
+
+ tc_info(ptm_tc->tc_priv, MSG_EVENT, "ptm stop\n");
++
+ netif_tx_stop_all_queues(dev);
++
++ ptm_tc->tc_priv->tc_ops.net_stop();
++
+ #ifdef CONFIG_SOC_TYPE_XWAY
+ if (ppa_drv_datapath_mac_entry_setting)
+ ppa_drv_datapath_mac_entry_setting(dev->dev_addr, 0, 6, 10, 1, 2);
+@@ -555,7 +563,7 @@ static void ptm_rx(struct net_device *de
+ ptm_tc->stats64.rx_packets++;
+ ptm_tc->stats64.rx_bytes += skb->len;
+
+- if (netif_rx(skb) == NET_RX_DROP)
++ if (netif_receive_skb(skb) == NET_RX_DROP)
+ ptm_tc->stats64.rx_dropped++;
+
+ return;
+@@ -651,6 +659,9 @@ static int ptm_dev_init(struct tc_priv *
+ memcpy(ptm_tc->outq_map, def_outq_map, sizeof(def_outq_map));
+ SET_NETDEV_DEV(ptm_tc->dev, tc_priv->ep_dev[id].dev);
+
++ netif_napi_add(ptm_tc->dev, &ptm_tc->napi_rx, tc_priv->tc_ops.napi_rx, NAPI_POLL_WEIGHT);
++ netif_tx_napi_add(ptm_tc->dev, &ptm_tc->napi_tx, tc_priv->tc_ops.napi_tx, NAPI_POLL_WEIGHT);
++
+ err = register_netdev(ptm_tc->dev);
+ if (err)
+ goto err1;
+@@ -2605,7 +2616,9 @@ static int ptm_ring_init(struct ptm_ep_p
+ {
+ ptm_aca_ring_config_init(priv, id, bonding);
+ return priv->tc_priv->tc_ops.dev_reg(priv->ptm_tc->dev,
+- priv->ptm_tc->dev->name, id, bonding);
++ priv->ptm_tc->dev->name,
++ &priv->ptm_tc->napi_tx, &priv->ptm_tc->napi_rx,
++ id, bonding);
+ }
+
+ /**
+@@ -2960,7 +2973,9 @@ void ptm_tc_unload(enum dsl_tc_mode tc_m
+ /* unregister device */
+ if (ptm_tc->tc_priv->tc_ops.dev_unreg != NULL)
+ ptm_tc->tc_priv->tc_ops.dev_unreg(ptm_tc->dev,
+- ptm_tc->dev->name, 0);
++ ptm_tc->dev->name,
++ &priv->ptm_tc->napi_tx, &priv->ptm_tc->napi_rx,
++ 0);
+
+ /* remove PTM callback function */
+ ptm_cb_setup(ptm_tc, 0);
+@@ -2978,6 +2993,10 @@ void ptm_exit(void)
+
+ if (!priv)
+ return;
++
++ netif_napi_del(&priv->napi_tx);
++ netif_napi_del(&priv->napi_rx);
++
+ unregister_netdev(priv->dev);
+ free_netdev(priv->dev);
+
+--- a/dcdp/inc/ptm_tc.h
++++ b/dcdp/inc/ptm_tc.h
+@@ -119,6 +119,8 @@ struct ptm_priv {
+ u32 ep_id;
+ struct ppe_fw fw;
+ struct net_device *dev;
++ struct napi_struct napi_tx;
++ struct napi_struct napi_rx;
+ spinlock_t ptm_lock;
+ struct rtnl_link_stats64 stats64;
+ int subif_id;
diff --git a/package/kernel/lantiq/vrx518_tc/patches/203-dbg.patch b/package/kernel/lantiq/vrx518_tc/patches/203-dbg.patch
new file mode 100644
index 0000000000..687e66f991
--- /dev/null
+++ b/package/kernel/lantiq/vrx518_tc/patches/203-dbg.patch
@@ -0,0 +1,120 @@
+--- a/dcdp/platform/sw_plat.c
++++ b/dcdp/platform/sw_plat.c
+@@ -85,6 +85,7 @@ struct aca_ring {
+ u32 dnum;
+ u32 dsize;
+ int idx; /* SoC RX/TX index */
++ u64 cnt;
+ int ep_dev_idx;
+ };
+
+@@ -210,6 +211,8 @@ struct plat_priv {
+ struct net_device *netdev;
+ struct napi_struct *napi_tx;
+ struct napi_struct *napi_rx;
++ u64 napi_tx_stats[NAPI_POLL_WEIGHT+1];
++ u64 napi_rx_stats[NAPI_POLL_WEIGHT+1];
+ DECLARE_HASHTABLE(mem_map, 8);
+ };
+
+@@ -362,6 +365,7 @@ static void txlist_free(struct tx_list *
+ static inline void ring_idx_inc(struct aca_ring *ring)
+ {
+ ring->idx = (ring->idx + 1) % ring->dnum;
++ ring->cnt += 1;
+ }
+
+ static struct sk_buff *txin_skb_prepare(struct sk_buff *skb)
+@@ -619,6 +623,8 @@ static int plat_txout_napi(struct napi_s
+
+ cnt = txout_action(tcpriv, txout, budget);
+
++ priv->napi_tx_stats[cnt] += 1;
++
+ if (cnt < budget) {
+ if (napi_complete_done(napi, cnt))
+ ep_dev->hw_ops->icu_en(ep_dev, ACA_HOSTIF_TX);
+@@ -653,6 +659,8 @@ static int plat_rxout_napi(struct napi_s
+ if (cnt)
+ rxin_action(tcpriv, rxin, DMA_PACKET_SZ, cnt);
+
++ priv->napi_rx_stats[cnt] += 1;
++
+ if (cnt < budget) {
+ if (napi_complete_done(napi, cnt))
+ ep_dev->hw_ops->icu_en(ep_dev, ACA_HOSTIF_RX);
+@@ -1092,6 +1100,56 @@ static int plat_soc_cfg_get(struct soc_c
+ return 0;
+ }
+
++static struct proc_dir_entry *g_proc_entry;
++
++static int proc_show(struct seq_file *m, void *p)
++{
++ struct aca_ring *txin = &g_plat_priv->soc_rings.txin;
++ struct aca_ring *txout = &g_plat_priv->soc_rings.txout;
++ struct aca_ring *rxin = &g_plat_priv->soc_rings.rxin;
++ struct aca_ring *rxout = &g_plat_priv->soc_rings.rxout;
++ int i;
++
++ seq_printf(m, "napi_tx_stats: ");
++ for (i = 0; i < sizeof(g_plat_priv->napi_tx_stats) / sizeof(g_plat_priv->napi_tx_stats[0]); i++) {
++ if (i == 0) {
++ seq_printf(m, "%llu", g_plat_priv->napi_tx_stats[i]);
++ } else {
++ seq_printf(m, ", %llu", g_plat_priv->napi_tx_stats[i]);
++ }
++ }
++ seq_printf(m, "\n");
++
++ seq_printf(m, "napi_rx_stats: ");
++ for (i = 0; i < sizeof(g_plat_priv->napi_rx_stats) / sizeof(g_plat_priv->napi_rx_stats[0]); i++) {
++ if (i == 0) {
++ seq_printf(m, "%llu", g_plat_priv->napi_rx_stats[i]);
++ } else {
++ seq_printf(m, ", %llu", g_plat_priv->napi_rx_stats[i]);
++ }
++ }
++ seq_printf(m, "\n");
++
++ seq_printf(m, "txin: %d/%u, %llu\n", txin->idx, txin->dnum, txin->cnt);
++ seq_printf(m, "txout: %d/%u, %llu\n", txout->idx, txout->dnum, txout->cnt);
++ seq_printf(m, "rxin: %d/%u, %llu\n", rxin->idx, rxin->dnum, rxin->cnt);
++ seq_printf(m, "rxout: %d/%u, %llu\n", rxout->idx, rxout->dnum, rxout->cnt);
++
++ return 0;
++}
++
++static int proc_open(struct inode *inode, struct file *file)
++{
++ return single_open(file, proc_show, NULL);
++}
++
++static struct proc_ops proc_operations = {
++ .proc_open = proc_open,
++ .proc_read = seq_read,
++ .proc_lseek = seq_lseek,
++ .proc_release = single_release
++};
++
+ static int plat_open(struct net_device *pdev, const char *dev_name,
+ struct napi_struct *napi_tx, struct napi_struct *napi_rx,
+ int id, int flag)
+@@ -1099,6 +1157,8 @@ static int plat_open(struct net_device *
+ struct tc_priv *priv = g_plat_priv->tc_priv;
+ int i;
+
++ g_proc_entry = proc_create("swplat", 0600, priv->proc_dir, &proc_operations);
++
+ for (i = 0; i < EP_MAX_NUM && i < priv->ep_num; i++) {
+ disable_irq(priv->ep_dev[i].aca_rx_irq);
+ disable_irq(priv->ep_dev[i].aca_tx_irq);
+@@ -1137,6 +1197,8 @@ static void plat_close(struct net_device
+ enable_irq(priv->ep_dev[i].aca_tx_irq);
+ }
+
++ proc_remove(g_proc_entry);
++
+ return;
+ }
+
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