Initial commit

package/kernel/lantiq/ltq-vectoring/Makefile

@@ -0,0 +1,60 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=ltq-vectoring
+PKG_RELEASE:=3
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_URL:=https://gitlab.com/prpl-foundation/intel/ppa_drv.git
+PKG_SOURCE_DATE:=2019-05-20
+PKG_SOURCE_VERSION:=4fa7ac30fcc8ec4eddae9debba5f4230981f469f
+PKG_MIRROR_HASH:=53ae72a929db598202a4e9c3df43b65fa0778cd165c1ec2ddf9361993795b930
+PKG_LICENSE:=GPL-2.0 BSD-2-Clause
+
+MAKE_PATH:=src/vectoring
+PKG_EXTMOD_SUBDIRS:=$(MAKE_PATH)
+
+include $(INCLUDE_DIR)/kernel.mk
+include $(INCLUDE_DIR)/package.mk
+
+define KernelPackage/ltq-vectoring
+  SECTION:=sys
+  CATEGORY:=Kernel modules
+  SUBMENU:=Network Devices
+  TITLE:=driver for sending vectoring error samples
+  DEPENDS:=@TARGET_lantiq_xrx200
+  FILES:=$(PKG_BUILD_DIR)/$(MAKE_PATH)/ltq_vectoring.ko
+  AUTOLOAD:=$(call AutoLoad,49,ltq_vectoring)
+endef
+
+define Package/ltq-vectoring/description
+	This driver is responsible for sending error reports to the vectoring
+	control entity, which is required for downstream vectoring to work.
+
+	The error reports are generated by the DSL firmware, and passed to this
+	driver by the MEI driver.
+endef
+
+define KernelPackage/ltq-vectoring-test
+  SECTION:=sys
+  CATEGORY:=Kernel modules
+  SUBMENU:=Network Devices
+  TITLE:=driver for testing the vectoring driver
+  DEPENDS:=@TARGET_lantiq_xrx200 +kmod-ltq-vectoring
+  FILES:=$(PKG_BUILD_DIR)/$(MAKE_PATH)/ltq_vectoring_test.ko
+endef
+
+define Package/ltq-vectoring-test/description
+	This allows to send dummy data to the vectoring error block callback.
+	This is only needed for test and development purposes.
+endef
+
+define Build/Configure
+endef
+
+define Build/Compile
+	+$(KERNEL_MAKE) $(PKG_JOBS) \
+		M="$(PKG_BUILD_DIR)/$(MAKE_PATH)" \
+		modules
+endef
+
+$(eval $(call KernelPackage,ltq-vectoring))
+$(eval $(call KernelPackage,ltq-vectoring-test))

package/kernel/lantiq/ltq-vectoring/patches/001-fix-compile.patch

@@ -0,0 +1,95 @@
+--- a/src/vectoring/Makefile
++++ b/src/vectoring/Makefile
+@@ -1,5 +1,5 @@
+-obj-$(CONFIG_PTM_VECTORING)	+= ifxmips_vectoring.o
+-obj-y += ifxmips_vectoring_stub.o
+-ifeq ($(CONFIG_DSL_MEI_CPE_DRV),)
+-obj-$(CONFIG_PTM_VECTORING)	+= ifxmips_vectoring_test.o
+-endif
++obj-m += ltq_vectoring.o
++ltq_vectoring-objs = ifxmips_vectoring.o ifxmips_vectoring_stub.o
++
++obj-m += ltq_vectoring_test.o
++ltq_vectoring_test-objs = ifxmips_vectoring_test.o
+--- a/src/vectoring/ifxmips_vectoring.c
++++ b/src/vectoring/ifxmips_vectoring.c
+@@ -30,9 +30,11 @@
+ /*
+  *  Common Head File
+  */
++#include <linux/version.h>
+ #include <linux/kernel.h>
+ #include <linux/module.h>
+ #include <linux/etherdevice.h>
++#include <linux/proc_fs.h>
+ 
+ /*
+  *  Chip Specific Head File
+@@ -239,7 +241,7 @@ static int netdev_event_handler(struct n
+         && event != NETDEV_UNREGISTER )
+         return NOTIFY_DONE;
+ 
+-    netif = (struct net_device *)netdev;
++    netif = netdev_notifier_info_to_dev(netdev);
+     if ( strcmp(netif->name, "ptm0") != 0 )
+         return NOTIFY_DONE;
+ 
+@@ -356,6 +358,7 @@ static int proc_write_dbg(struct file *f
+     return count;
+ }
+ 
++#if LINUX_VERSION_CODE < KERNEL_VERSION(5,6,0)
+ static struct file_operations g_proc_file_vectoring_dbg_seq_fops = {
+     .owner      = THIS_MODULE,
+     .open       = proc_read_dbg_seq_open,
+@@ -364,6 +367,15 @@ static struct file_operations g_proc_fil
+     .llseek     = seq_lseek,
+     .release    = single_release,
+ };
++#else
++static struct proc_ops g_proc_file_vectoring_dbg_seq_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,
++};
++#endif
+ 
+ static int proc_read_dbg_seq_open(struct inode *inode, struct file *file)
+ {
+--- a/src/vectoring/ifxmips_vectoring_test.c
++++ b/src/vectoring/ifxmips_vectoring_test.c
+@@ -1,6 +1,8 @@
++#include <linux/version.h>
+ #include <linux/kernel.h>
+ #include <linux/module.h>
+ #include <linux/proc_fs.h>
++#include <linux/seq_file.h>
+ 
+ #include "ifxmips_vectoring_stub.h"
+ 
+@@ -82,6 +84,7 @@ static int proc_write_vectoring(struct f
+     return count;
+ }
+ 
++#if LINUX_VERSION_CODE < KERNEL_VERSION(5,6,0)
+ static struct file_operations g_proc_file_vectoring_seq_fops = {
+     .owner      = THIS_MODULE,
+     .open       = proc_read_vectoring_seq_open,
+@@ -90,6 +93,15 @@ static struct file_operations g_proc_fil
+     .llseek     = seq_lseek,
+     .release    = single_release,
+ };
++#else
++static struct proc_ops g_proc_file_vectoring_seq_fops = {
++    .proc_open    = proc_read_vectoring_seq_open,
++    .proc_read    = seq_read,
++    .proc_write   = proc_write_vectoring,
++    .proc_lseek   = seq_lseek,
++    .proc_release = single_release,
++};
++#endif
+ 
+ static int proc_read_vectoring_seq_open(struct inode *inode, struct file *file)
+ {

package/kernel/lantiq/ltq-vectoring/patches/100-cleanup.patch

@@ -0,0 +1,73 @@
+--- a/src/vectoring/ifxmips_vectoring.c
++++ b/src/vectoring/ifxmips_vectoring.c
+@@ -325,7 +325,7 @@ static int proc_write_dbg(struct file *f
+             else
+                 printk(dbg_enable_mask_str[i] + 1);
+         }
+-        printk("] > /proc/vectoring\n");
++        printk("] > /proc/driver/vectoring\n");
+     }
+ 
+     if ( f_enable )
+@@ -433,11 +433,10 @@ static int __init vectoring_init(void)
+ {
+     struct proc_dir_entry *res;
+ 
+-    res = proc_create("vectoring",
++    res = proc_create("driver/vectoring",
+ 				S_IRUGO|S_IWUSR,
+ 				0,
+ 				&g_proc_file_vectoring_dbg_seq_fops);
+-    printk("res = %p\n", res);
+ 
+     register_netdev_event_handler();
+     g_ptm_net_dev = dev_get_by_name(&init_net, "ptm0");
+@@ -460,7 +459,7 @@ static void __exit vectoring_exit(void)
+ 
+     unregister_netdev_event_handler();
+ 
+-    remove_proc_entry("vectoring", NULL);
++    remove_proc_entry("driver/vectoring", NULL);
+ }
+ 
+ module_init(vectoring_init);
+--- a/src/vectoring/ifxmips_vectoring_test.c
++++ b/src/vectoring/ifxmips_vectoring_test.c
+@@ -79,7 +79,7 @@ static int proc_write_vectoring(struct f
+         }
+     }
+     else
+-        printk("echo send <size> > /proc/eth/vectoring\n");
++        printk("echo send <size> > /proc/driver/vectoring_test\n");
+ 
+     return count;
+ }
+@@ -112,9 +112,7 @@ static __init void proc_file_create(void
+ {
+     struct proc_dir_entry *res;
+ 
+-//    g_proc_dir = proc_mkdir("eth", NULL);
+-
+-    res = proc_create("eth/vectoring",
++    res = proc_create("driver/vectoring_test",
+                             S_IRUGO|S_IWUSR,
+                             g_proc_dir,
+ 			&g_proc_file_vectoring_seq_fops);
+@@ -122,10 +120,7 @@ static __init void proc_file_create(void
+ 
+ static __exit void proc_file_delete(void)
+ {
+-    remove_proc_entry("vectoring",
+-                      g_proc_dir);
+-
+-    remove_proc_entry("eth", NULL);
++    remove_proc_entry("driver/vectoring_test", NULL);
+ }
+ 
+ 
+@@ -151,3 +146,5 @@ static void __exit vectoring_test_exit(v
+ 
+ module_init(vectoring_test_init);
+ module_exit(vectoring_test_exit);
++
++MODULE_LICENSE("GPL");

package/kernel/lantiq/ltq-vectoring/patches/200-compat.patch

@@ -0,0 +1,126 @@
+--- a/src/vectoring/ifxmips_vectoring.c
++++ b/src/vectoring/ifxmips_vectoring.c
+@@ -35,6 +35,8 @@
+ #include <linux/module.h>
+ #include <linux/etherdevice.h>
+ #include <linux/proc_fs.h>
++#include <linux/pkt_sched.h>
++#include <linux/workqueue.h>
+ 
+ /*
+  *  Chip Specific Head File
+@@ -88,6 +90,7 @@ static void dump_skb(struct sk_buff *skb
+ 
+ static void ltq_vectoring_priority(uint32_t priority);
+ 
++static void xmit_work_handler(struct work_struct *);
+ 
+ /*
+  * ####################################
+@@ -118,9 +121,13 @@ struct erb_head {
+ 
+ static struct notifier_block g_netdev_event_handler_nb = {0};
+ static struct net_device *g_ptm_net_dev = NULL;
+-static uint32_t vector_prio = 0;
++static uint32_t vector_prio = TC_PRIO_CONTROL;
+ static int g_dbg_enable = 0;
+ 
++static struct workqueue_struct *vectoring_wq;
++
++DECLARE_WORK(xmit_work, xmit_work_handler);
++struct sk_buff_head xmit_queue;
+ 
+ 
+ /*
+@@ -129,9 +136,16 @@ static int g_dbg_enable = 0;
+  * ####################################
+  */
+ 
++static void xmit_work_handler(__attribute__((unused)) struct work_struct *work) {
++	struct sk_buff *skb;
++
++	while ((skb = skb_dequeue(&xmit_queue)) != NULL) {
++		dev_queue_xmit(skb);
++	}
++}
++
+ static int mei_dsm_cb_func(unsigned int *p_error_vector)
+ {
+-    int rc, ret;
+     struct sk_buff *skb_list = NULL;
+     struct sk_buff *skb;
+     struct erb_head *erb;
+@@ -179,7 +193,6 @@ static int mei_dsm_cb_func(unsigned int
+         }
+     }
+ 
+-    rc = 0;
+     sent_size = 0;
+     segment_code = 0;
+     while ( (skb = skb_list) != NULL ) {
+@@ -197,24 +210,23 @@ static int mei_dsm_cb_func(unsigned int
+             segment_code |= 0xC0;
+         ((struct erb_head *)skb->data)->segment_code = segment_code;
+ 
+-        skb->cb[13] = 0x5A; /* magic number indicating forcing QId */
+-        skb->cb[15] = 0x00; /* highest priority queue */
+-		skb->priority = vector_prio;
++        skb_reset_mac_header(skb);
++        skb_set_network_header(skb, offsetof(struct erb_head, llc_header));
++        skb->protocol = htons(ETH_P_802_2);
++        skb->priority = vector_prio;
+         skb->dev = g_ptm_net_dev;
+ 
+         dump_skb(skb, ~0, "vectoring TX", 0, 0, 1, 0);
+ 
+-        ret = g_ptm_net_dev->netdev_ops->ndo_start_xmit(skb, g_ptm_net_dev);
+-        if ( rc == 0 )
+-            rc = ret;
++        skb_queue_tail(&xmit_queue, skb);
++        queue_work(vectoring_wq, &xmit_work);
+ 
+         segment_code++;
+     }
+ 
+     *p_error_vector = 0;    /* notify DSL firmware that ERB is sent */
+ 
+-    ASSERT(rc == 0, "dev_queue_xmit fail - %d", rc);
+-    return rc;
++    return 0;
+ }
+ static void ltq_vectoring_priority(uint32_t priority)
+ {
+@@ -242,7 +254,7 @@ static int netdev_event_handler(struct n
+         return NOTIFY_DONE;
+ 
+     netif = netdev_notifier_info_to_dev(netdev);
+-    if ( strcmp(netif->name, "ptm0") != 0 )
++    if ( strcmp(netif->name, "dsl0") != 0 )
+         return NOTIFY_DONE;
+ 
+     g_ptm_net_dev = event == NETDEV_REGISTER ? netif : NULL;
+@@ -438,8 +450,12 @@ static int __init vectoring_init(void)
+ 				0,
+ 				&g_proc_file_vectoring_dbg_seq_fops);
+ 
++    vectoring_wq = alloc_workqueue("vectoring", 0, 0);
++
++    skb_queue_head_init(&xmit_queue);
++
+     register_netdev_event_handler();
+-    g_ptm_net_dev = dev_get_by_name(&init_net, "ptm0");
++    g_ptm_net_dev = dev_get_by_name(&init_net, "dsl0");
+     if ( g_ptm_net_dev != NULL )
+         dev_put(g_ptm_net_dev);
+ 
+@@ -459,6 +475,10 @@ static void __exit vectoring_exit(void)
+ 
+     unregister_netdev_event_handler();
+ 
++    flush_workqueue(vectoring_wq);
++
++    destroy_workqueue(vectoring_wq);
++
+     remove_proc_entry("driver/vectoring", NULL);
+ }
+ 

package/kernel/lantiq/ltq-vectoring/patches/300-fix-compilation-warning-stack-limit.patch

@@ -0,0 +1,69 @@
+--- a/src/vectoring/ifxmips_vectoring.c
++++ b/src/vectoring/ifxmips_vectoring.c
+@@ -300,7 +300,7 @@ static int proc_write_dbg(struct file *f
+         DBG_ENABLE_MASK_ALL
+     };
+ 
+-    char str[2048];
++    char *str;
+     char *p;
+ 
+     int len, rlen;
+@@ -308,6 +308,10 @@ static int proc_write_dbg(struct file *f
+     int f_enable = 0;
+     int i;
+ 
++    str = kcalloc(2048, sizeof(*str), GFP_KERNEL);
++    if (!str)
++        return -ENOMEM;
++
+     len = count < sizeof(str) ? count : sizeof(str) - 1;
+     rlen = len - copy_from_user(str, buf, len);
+     while ( rlen && str[rlen - 1] <= ' ' )
+@@ -367,6 +371,8 @@ static int proc_write_dbg(struct file *f
+         }
+     }
+ 
++    kfree(str);
++
+     return count;
+ }
+ 
+--- a/src/vectoring/ifxmips_vectoring_test.c
++++ b/src/vectoring/ifxmips_vectoring_test.c
+@@ -3,6 +3,7 @@
+ #include <linux/module.h>
+ #include <linux/proc_fs.h>
+ #include <linux/seq_file.h>
++#include <linux/slab.h>
+ 
+ #include "ifxmips_vectoring_stub.h"
+ 
+@@ -46,13 +47,17 @@ static int proc_write_vectoring(struct f
+ {
+     char *p;
+     int len;
+-    char local_buf[1024];
++    char *local_buf;
+ 
+     unsigned long pkt_len;
+     int ret;
+     unsigned long sys_flag;
+     unsigned long start, end;
+ 
++    local_buf = kcalloc(1024, sizeof(*local_buf), GFP_KERNEL);
++    if (!local_buf)
++        return -ENOMEM;
++
+     len = sizeof(local_buf) < count ? sizeof(local_buf) - 1 : count;
+     len = len - copy_from_user(local_buf, buf, len);
+     local_buf[len] = 0;
+@@ -81,6 +86,8 @@ static int proc_write_vectoring(struct f
+     else
+         printk("echo send <size> > /proc/driver/vectoring_test\n");
+ 
++    kfree(local_buf);
++
+     return count;
+ }
+