^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/timer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/bitops.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/capability.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/seq_file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) /* We are an ethernet device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/if_ether.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/netdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/etherdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <net/sock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/skbuff.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/ip.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <asm/byteorder.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <net/checksum.h> /* for ip_fast_csum() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <net/arp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <net/dst.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/proc_fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /* And atm device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <linux/atmdev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <linux/atmlec.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <linux/atmmpc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) /* Modular too */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include "lec.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include "mpc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #include "resources.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * mpc.c: Implementation of MPOA client kernel part
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #if 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define dprintk(format, args...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) printk(KERN_DEBUG "mpoa:%s: " format, __func__, ##args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define dprintk_cont(format, args...) printk(KERN_CONT format, ##args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define dprintk(format, args...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) do { if (0) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) printk(KERN_DEBUG "mpoa:%s: " format, __func__, ##args);\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define dprintk_cont(format, args...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) do { if (0) printk(KERN_CONT format, ##args); } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #if 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define ddprintk(format, args...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) printk(KERN_DEBUG "mpoa:%s: " format, __func__, ##args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #define ddprintk_cont(format, args...) printk(KERN_CONT format, ##args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #define ddprintk(format, args...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) do { if (0) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) printk(KERN_DEBUG "mpoa:%s: " format, __func__, ##args);\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #define ddprintk_cont(format, args...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) do { if (0) printk(KERN_CONT format, ##args); } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) /* mpc_daemon -> kernel */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) static void MPOA_trigger_rcvd(struct k_message *msg, struct mpoa_client *mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) static void MPOA_res_reply_rcvd(struct k_message *msg, struct mpoa_client *mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) static void ingress_purge_rcvd(struct k_message *msg, struct mpoa_client *mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) static void egress_purge_rcvd(struct k_message *msg, struct mpoa_client *mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) static void mps_death(struct k_message *msg, struct mpoa_client *mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) static void clean_up(struct k_message *msg, struct mpoa_client *mpc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) int action);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) static void MPOA_cache_impos_rcvd(struct k_message *msg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) struct mpoa_client *mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) static void set_mpc_ctrl_addr_rcvd(struct k_message *mesg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct mpoa_client *mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) static void set_mps_mac_addr_rcvd(struct k_message *mesg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct mpoa_client *mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) static const uint8_t *copy_macs(struct mpoa_client *mpc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) const uint8_t *router_mac,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) const uint8_t *tlvs, uint8_t mps_macs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) uint8_t device_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) static void purge_egress_shortcut(struct atm_vcc *vcc, eg_cache_entry *entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static void send_set_mps_ctrl_addr(const char *addr, struct mpoa_client *mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) static void mpoad_close(struct atm_vcc *vcc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) static int msg_from_mpoad(struct atm_vcc *vcc, struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) static void mpc_push(struct atm_vcc *vcc, struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) static netdev_tx_t mpc_send_packet(struct sk_buff *skb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) struct net_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) static int mpoa_event_listener(struct notifier_block *mpoa_notifier,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) unsigned long event, void *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) static void mpc_timer_refresh(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) static void mpc_cache_check(struct timer_list *unused);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static struct llc_snap_hdr llc_snap_mpoa_ctrl = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 0xaa, 0xaa, 0x03,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) {0x00, 0x00, 0x5e},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) {0x00, 0x03} /* For MPOA control PDUs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) static struct llc_snap_hdr llc_snap_mpoa_data = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 0xaa, 0xaa, 0x03,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) {0x00, 0x00, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) {0x08, 0x00} /* This is for IP PDUs only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) static struct llc_snap_hdr llc_snap_mpoa_data_tagged = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 0xaa, 0xaa, 0x03,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) {0x00, 0x00, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) {0x88, 0x4c} /* This is for tagged data PDUs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) static struct notifier_block mpoa_notifier = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) mpoa_event_listener,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) struct mpoa_client *mpcs = NULL; /* FIXME */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) static struct atm_mpoa_qos *qos_head = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) static DEFINE_TIMER(mpc_timer, mpc_cache_check);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) static struct mpoa_client *find_mpc_by_itfnum(int itf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) struct mpoa_client *mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) mpc = mpcs; /* our global linked list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) while (mpc != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) if (mpc->dev_num == itf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) return mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) mpc = mpc->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) return NULL; /* not found */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static struct mpoa_client *find_mpc_by_vcc(struct atm_vcc *vcc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) struct mpoa_client *mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) mpc = mpcs; /* our global linked list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) while (mpc != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) if (mpc->mpoad_vcc == vcc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) return mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) mpc = mpc->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) return NULL; /* not found */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) static struct mpoa_client *find_mpc_by_lec(struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) struct mpoa_client *mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) mpc = mpcs; /* our global linked list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) while (mpc != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) if (mpc->dev == dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) return mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) mpc = mpc->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) return NULL; /* not found */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) * Functions for managing QoS list
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) * Overwrites the old entry or makes a new one.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) struct atm_mpoa_qos *atm_mpoa_add_qos(__be32 dst_ip, struct atm_qos *qos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) struct atm_mpoa_qos *entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) entry = atm_mpoa_search_qos(dst_ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) if (entry != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) entry->qos = *qos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) return entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) entry = kmalloc(sizeof(struct atm_mpoa_qos), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) if (entry == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) pr_info("mpoa: out of memory\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) return entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) entry->ipaddr = dst_ip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) entry->qos = *qos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) entry->next = qos_head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) qos_head = entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) return entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) struct atm_mpoa_qos *atm_mpoa_search_qos(__be32 dst_ip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) struct atm_mpoa_qos *qos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) qos = qos_head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) while (qos) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) if (qos->ipaddr == dst_ip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) qos = qos->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) return qos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) * Returns 0 for failure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) int atm_mpoa_delete_qos(struct atm_mpoa_qos *entry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) struct atm_mpoa_qos *curr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) if (entry == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) if (entry == qos_head) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) qos_head = qos_head->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) kfree(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) curr = qos_head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) while (curr != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) if (curr->next == entry) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) curr->next = entry->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) kfree(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) curr = curr->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) /* this is buggered - we need locking for qos_head */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) void atm_mpoa_disp_qos(struct seq_file *m)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) struct atm_mpoa_qos *qos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) qos = qos_head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) seq_printf(m, "QoS entries for shortcuts:\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) seq_printf(m, "IP address\n TX:max_pcr pcr min_pcr max_cdv max_sdu\n RX:max_pcr pcr min_pcr max_cdv max_sdu\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) while (qos != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) seq_printf(m, "%pI4\n %-7d %-7d %-7d %-7d %-7d\n %-7d %-7d %-7d %-7d %-7d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) &qos->ipaddr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) qos->qos.txtp.max_pcr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) qos->qos.txtp.pcr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) qos->qos.txtp.min_pcr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) qos->qos.txtp.max_cdv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) qos->qos.txtp.max_sdu,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) qos->qos.rxtp.max_pcr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) qos->qos.rxtp.pcr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) qos->qos.rxtp.min_pcr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) qos->qos.rxtp.max_cdv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) qos->qos.rxtp.max_sdu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) qos = qos->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) static struct net_device *find_lec_by_itfnum(int itf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) struct net_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) char name[IFNAMSIZ];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) sprintf(name, "lec%d", itf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) dev = dev_get_by_name(&init_net, name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) return dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) static struct mpoa_client *alloc_mpc(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) struct mpoa_client *mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) mpc = kzalloc(sizeof(struct mpoa_client), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) if (mpc == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) rwlock_init(&mpc->ingress_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) rwlock_init(&mpc->egress_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) mpc->next = mpcs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) atm_mpoa_init_cache(mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) mpc->parameters.mpc_p1 = MPC_P1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) mpc->parameters.mpc_p2 = MPC_P2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) memset(mpc->parameters.mpc_p3, 0, sizeof(mpc->parameters.mpc_p3));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) mpc->parameters.mpc_p4 = MPC_P4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) mpc->parameters.mpc_p5 = MPC_P5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) mpc->parameters.mpc_p6 = MPC_P6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) mpcs = mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) return mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) * start_mpc() puts the MPC on line. All the packets destined
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) * to the lec underneath us are now being monitored and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) * shortcuts will be established.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) static void start_mpc(struct mpoa_client *mpc, struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) dprintk("(%s)\n", mpc->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) if (!dev->netdev_ops)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) pr_info("(%s) not starting\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) mpc->old_ops = dev->netdev_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) mpc->new_ops = *mpc->old_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) mpc->new_ops.ndo_start_xmit = mpc_send_packet;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) dev->netdev_ops = &mpc->new_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) static void stop_mpc(struct mpoa_client *mpc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) struct net_device *dev = mpc->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) dprintk("(%s)", mpc->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) /* Lets not nullify lec device's dev->hard_start_xmit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) if (dev->netdev_ops != &mpc->new_ops) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) dprintk_cont(" mpc already stopped, not fatal\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) dprintk_cont("\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) dev->netdev_ops = mpc->old_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) mpc->old_ops = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) /* close_shortcuts(mpc); ??? FIXME */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) static const char *mpoa_device_type_string(char type) __attribute__ ((unused));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) static const char *mpoa_device_type_string(char type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) switch (type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) case NON_MPOA:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) return "non-MPOA device";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) case MPS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) return "MPS";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) case MPC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) return "MPC";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) case MPS_AND_MPC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) return "both MPS and MPC";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) return "unspecified (non-MPOA) device";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) * lec device calls this via its netdev_priv(dev)->lane2_ops
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) * ->associate_indicator() when it sees a TLV in LE_ARP packet.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) * We fill in the pointer above when we see a LANE2 lec initializing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) * See LANE2 spec 3.1.5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) * Quite a big and ugly function but when you look at it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) * all it does is to try to locate and parse MPOA Device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) * Type TLV.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) * We give our lec a pointer to this function and when the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) * lec sees a TLV it uses the pointer to call this function.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) static void lane2_assoc_ind(struct net_device *dev, const u8 *mac_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) const u8 *tlvs, u32 sizeoftlvs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) uint32_t type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) uint8_t length, mpoa_device_type, number_of_mps_macs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) const uint8_t *end_of_tlvs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) struct mpoa_client *mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) mpoa_device_type = number_of_mps_macs = 0; /* silence gcc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) dprintk("(%s) received TLV(s), ", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) dprintk("total length of all TLVs %d\n", sizeoftlvs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) mpc = find_mpc_by_lec(dev); /* Sampo-Fix: moved here from below */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) if (mpc == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) pr_info("(%s) no mpc\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) end_of_tlvs = tlvs + sizeoftlvs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) while (end_of_tlvs - tlvs >= 5) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) type = ((tlvs[0] << 24) | (tlvs[1] << 16) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) (tlvs[2] << 8) | tlvs[3]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) length = tlvs[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) tlvs += 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) dprintk(" type 0x%x length %02x\n", type, length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) if (tlvs + length > end_of_tlvs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) pr_info("TLV value extends past its buffer, aborting parse\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) if (type == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) pr_info("mpoa: (%s) TLV type was 0, returning\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) if (type != TLV_MPOA_DEVICE_TYPE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) tlvs += length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) continue; /* skip other TLVs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) mpoa_device_type = *tlvs++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) number_of_mps_macs = *tlvs++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) dprintk("(%s) MPOA device type '%s', ",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) dev->name, mpoa_device_type_string(mpoa_device_type));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) if (mpoa_device_type == MPS_AND_MPC &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) length < (42 + number_of_mps_macs*ETH_ALEN)) { /* :) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) pr_info("(%s) short MPOA Device Type TLV\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) if ((mpoa_device_type == MPS || mpoa_device_type == MPC) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) length < 22 + number_of_mps_macs*ETH_ALEN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) pr_info("(%s) short MPOA Device Type TLV\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) if (mpoa_device_type != MPS &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) mpoa_device_type != MPS_AND_MPC) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) dprintk("ignoring non-MPS device ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) if (mpoa_device_type == MPC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) tlvs += 20;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) continue; /* we are only interested in MPSs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) if (number_of_mps_macs == 0 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) mpoa_device_type == MPS_AND_MPC) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) pr_info("(%s) MPS_AND_MPC has zero MACs\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) continue; /* someone should read the spec */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) dprintk_cont("this MPS has %d MAC addresses\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) number_of_mps_macs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) * ok, now we can go and tell our daemon
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) * the control address of MPS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) send_set_mps_ctrl_addr(tlvs, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) tlvs = copy_macs(mpc, mac_addr, tlvs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) number_of_mps_macs, mpoa_device_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) if (tlvs == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) if (end_of_tlvs - tlvs != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) pr_info("(%s) ignoring %zd bytes of trailing TLV garbage\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) dev->name, end_of_tlvs - tlvs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) * Store at least advertizing router's MAC address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) * plus the possible MAC address(es) to mpc->mps_macs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) * For a freshly allocated MPOA client mpc->mps_macs == 0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) static const uint8_t *copy_macs(struct mpoa_client *mpc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) const uint8_t *router_mac,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) const uint8_t *tlvs, uint8_t mps_macs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) uint8_t device_type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) int num_macs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) num_macs = (mps_macs > 1) ? mps_macs : 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) if (mpc->number_of_mps_macs != num_macs) { /* need to reallocate? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) if (mpc->number_of_mps_macs != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) kfree(mpc->mps_macs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) mpc->number_of_mps_macs = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) mpc->mps_macs = kmalloc_array(ETH_ALEN, num_macs, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) if (mpc->mps_macs == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) pr_info("(%s) out of mem\n", mpc->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) ether_addr_copy(mpc->mps_macs, router_mac);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) tlvs += 20; if (device_type == MPS_AND_MPC) tlvs += 20;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) if (mps_macs > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) memcpy(mpc->mps_macs, tlvs, mps_macs*ETH_ALEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) tlvs += mps_macs*ETH_ALEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) mpc->number_of_mps_macs = num_macs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) return tlvs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) static int send_via_shortcut(struct sk_buff *skb, struct mpoa_client *mpc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) in_cache_entry *entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) struct iphdr *iph;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) char *buff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) __be32 ipaddr = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) static struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) struct llc_snap_hdr hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) __be32 tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) } tagged_llc_snap_hdr = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) {0xaa, 0xaa, 0x03, {0x00, 0x00, 0x00}, {0x88, 0x4c}},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) buff = skb->data + mpc->dev->hard_header_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) iph = (struct iphdr *)buff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) ipaddr = iph->daddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) ddprintk("(%s) ipaddr 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) mpc->dev->name, ipaddr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) entry = mpc->in_ops->get(ipaddr, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) if (entry == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) entry = mpc->in_ops->add_entry(ipaddr, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) if (entry != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) mpc->in_ops->put(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) /* threshold not exceeded or VCC not ready */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) if (mpc->in_ops->cache_hit(entry, mpc) != OPEN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) ddprintk("(%s) cache_hit: returns != OPEN\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) mpc->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) mpc->in_ops->put(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) ddprintk("(%s) using shortcut\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) mpc->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) /* MPOA spec A.1.4, MPOA client must decrement IP ttl at least by one */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) if (iph->ttl <= 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) ddprintk("(%s) IP ttl = %u, using LANE\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) mpc->dev->name, iph->ttl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) mpc->in_ops->put(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) iph->ttl--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) iph->check = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) if (entry->ctrl_info.tag != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) ddprintk("(%s) adding tag 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) mpc->dev->name, entry->ctrl_info.tag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) tagged_llc_snap_hdr.tag = entry->ctrl_info.tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) skb_pull(skb, ETH_HLEN); /* get rid of Eth header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) skb_push(skb, sizeof(tagged_llc_snap_hdr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) /* add LLC/SNAP header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) skb_copy_to_linear_data(skb, &tagged_llc_snap_hdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) sizeof(tagged_llc_snap_hdr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) skb_pull(skb, ETH_HLEN); /* get rid of Eth header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) skb_push(skb, sizeof(struct llc_snap_hdr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) /* add LLC/SNAP header + tag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) skb_copy_to_linear_data(skb, &llc_snap_mpoa_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) sizeof(struct llc_snap_hdr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) atm_account_tx(entry->shortcut, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) entry->shortcut->send(entry->shortcut, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) entry->packets_fwded++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) mpc->in_ops->put(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) * Probably needs some error checks and locking, not sure...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) static netdev_tx_t mpc_send_packet(struct sk_buff *skb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) struct mpoa_client *mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) struct ethhdr *eth;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) int i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) mpc = find_mpc_by_lec(dev); /* this should NEVER fail */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) if (mpc == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) pr_info("(%s) no MPC found\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) goto non_ip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) eth = (struct ethhdr *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) if (eth->h_proto != htons(ETH_P_IP))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) goto non_ip; /* Multi-Protocol Over ATM :-) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) /* Weed out funny packets (e.g., AF_PACKET or raw). */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) if (skb->len < ETH_HLEN + sizeof(struct iphdr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) goto non_ip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) skb_set_network_header(skb, ETH_HLEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) if (skb->len < ETH_HLEN + ip_hdr(skb)->ihl * 4 || ip_hdr(skb)->ihl < 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) goto non_ip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) while (i < mpc->number_of_mps_macs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) if (ether_addr_equal(eth->h_dest, mpc->mps_macs + i * ETH_ALEN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) if (send_via_shortcut(skb, mpc) == 0) /* try shortcut */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) return NETDEV_TX_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) i++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) non_ip:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) return __netdev_start_xmit(mpc->old_ops, skb, dev, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) static int atm_mpoa_vcc_attach(struct atm_vcc *vcc, void __user *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) int bytes_left;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) struct mpoa_client *mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) struct atmmpc_ioc ioc_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) in_cache_entry *in_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) __be32 ipaddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) bytes_left = copy_from_user(&ioc_data, arg, sizeof(struct atmmpc_ioc));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) if (bytes_left != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) pr_info("mpoa:Short read (missed %d bytes) from userland\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) bytes_left);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) ipaddr = ioc_data.ipaddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) if (ioc_data.dev_num < 0 || ioc_data.dev_num >= MAX_LEC_ITF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) mpc = find_mpc_by_itfnum(ioc_data.dev_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) if (mpc == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) if (ioc_data.type == MPC_SOCKET_INGRESS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) in_entry = mpc->in_ops->get(ipaddr, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) if (in_entry == NULL ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) in_entry->entry_state < INGRESS_RESOLVED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) pr_info("(%s) did not find RESOLVED entry from ingress cache\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) mpc->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) if (in_entry != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) mpc->in_ops->put(in_entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) pr_info("(%s) attaching ingress SVC, entry = %pI4\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) mpc->dev->name, &in_entry->ctrl_info.in_dst_ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) in_entry->shortcut = vcc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) mpc->in_ops->put(in_entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) pr_info("(%s) attaching egress SVC\n", mpc->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) vcc->proto_data = mpc->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) vcc->push = mpc_push;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) static void mpc_vcc_close(struct atm_vcc *vcc, struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) struct mpoa_client *mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) in_cache_entry *in_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) eg_cache_entry *eg_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) mpc = find_mpc_by_lec(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) if (mpc == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) pr_info("(%s) close for unknown MPC\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) dprintk("(%s)\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) in_entry = mpc->in_ops->get_by_vcc(vcc, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) if (in_entry) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) dprintk("(%s) ingress SVC closed ip = %pI4\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) mpc->dev->name, &in_entry->ctrl_info.in_dst_ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) in_entry->shortcut = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) mpc->in_ops->put(in_entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) eg_entry = mpc->eg_ops->get_by_vcc(vcc, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) if (eg_entry) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) dprintk("(%s) egress SVC closed\n", mpc->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) eg_entry->shortcut = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) mpc->eg_ops->put(eg_entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) if (in_entry == NULL && eg_entry == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) dprintk("(%s) unused vcc closed\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) static void mpc_push(struct atm_vcc *vcc, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) struct net_device *dev = (struct net_device *)vcc->proto_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) struct sk_buff *new_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) eg_cache_entry *eg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) struct mpoa_client *mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) __be32 tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) char *tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) ddprintk("(%s)\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) if (skb == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) dprintk("(%s) null skb, closing VCC\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) mpc_vcc_close(vcc, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) skb->dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) if (memcmp(skb->data, &llc_snap_mpoa_ctrl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) sizeof(struct llc_snap_hdr)) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) struct sock *sk = sk_atm(vcc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) dprintk("(%s) control packet arrived\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) /* Pass control packets to daemon */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) skb_queue_tail(&sk->sk_receive_queue, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) sk->sk_data_ready(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) /* data coming over the shortcut */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) atm_return(vcc, skb->truesize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) mpc = find_mpc_by_lec(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) if (mpc == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) pr_info("(%s) unknown MPC\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) if (memcmp(skb->data, &llc_snap_mpoa_data_tagged,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) sizeof(struct llc_snap_hdr)) == 0) { /* MPOA tagged data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) ddprintk("(%s) tagged data packet arrived\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) } else if (memcmp(skb->data, &llc_snap_mpoa_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) sizeof(struct llc_snap_hdr)) == 0) { /* MPOA data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) pr_info("(%s) Unsupported non-tagged data packet arrived. Purging\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) dev_kfree_skb_any(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) pr_info("(%s) garbage arrived, purging\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) dev_kfree_skb_any(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) tmp = skb->data + sizeof(struct llc_snap_hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) tag = *(__be32 *)tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) eg = mpc->eg_ops->get_by_tag(tag, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) if (eg == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) pr_info("mpoa: (%s) Didn't find egress cache entry, tag = %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) dev->name, tag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) purge_egress_shortcut(vcc, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) dev_kfree_skb_any(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) * See if ingress MPC is using shortcut we opened as a return channel.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) * This means we have a bi-directional vcc opened by us.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) if (eg->shortcut == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) eg->shortcut = vcc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) pr_info("(%s) egress SVC in use\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) skb_pull(skb, sizeof(struct llc_snap_hdr) + sizeof(tag));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) /* get rid of LLC/SNAP header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) new_skb = skb_realloc_headroom(skb, eg->ctrl_info.DH_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) /* LLC/SNAP is shorter than MAC header :( */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) dev_kfree_skb_any(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) if (new_skb == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) mpc->eg_ops->put(eg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) skb_push(new_skb, eg->ctrl_info.DH_length); /* add MAC header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) skb_copy_to_linear_data(new_skb, eg->ctrl_info.DLL_header,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) eg->ctrl_info.DH_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) new_skb->protocol = eth_type_trans(new_skb, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) skb_reset_network_header(new_skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) eg->latest_ip_addr = ip_hdr(new_skb)->saddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) eg->packets_rcvd++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) mpc->eg_ops->put(eg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) memset(ATM_SKB(new_skb), 0, sizeof(struct atm_skb_data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) netif_rx(new_skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) static const struct atmdev_ops mpc_ops = { /* only send is required */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) .close = mpoad_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) .send = msg_from_mpoad
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) static struct atm_dev mpc_dev = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) .ops = &mpc_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) .type = "mpc",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) .number = 42,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) .lock = __SPIN_LOCK_UNLOCKED(mpc_dev.lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) /* members not explicitly initialised will be 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) static int atm_mpoa_mpoad_attach(struct atm_vcc *vcc, int arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) struct mpoa_client *mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) struct lec_priv *priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) if (mpcs == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) mpc_timer_refresh();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) /* This lets us now how our LECs are doing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) err = register_netdevice_notifier(&mpoa_notifier);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) del_timer(&mpc_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) mpc = find_mpc_by_itfnum(arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) if (mpc == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) dprintk("allocating new mpc for itf %d\n", arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) mpc = alloc_mpc();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) if (mpc == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) mpc->dev_num = arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) mpc->dev = find_lec_by_itfnum(arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) /* NULL if there was no lec */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) if (mpc->mpoad_vcc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) pr_info("mpoad is already present for itf %d\n", arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) return -EADDRINUSE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) if (mpc->dev) { /* check if the lec is LANE2 capable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) priv = netdev_priv(mpc->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) if (priv->lane_version < 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) dev_put(mpc->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) mpc->dev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) priv->lane2_ops->associate_indicator = lane2_assoc_ind;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) mpc->mpoad_vcc = vcc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) vcc->dev = &mpc_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) vcc_insert_socket(sk_atm(vcc));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) set_bit(ATM_VF_META, &vcc->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) set_bit(ATM_VF_READY, &vcc->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) if (mpc->dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) char empty[ATM_ESA_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) memset(empty, 0, ATM_ESA_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) start_mpc(mpc, mpc->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) /* set address if mpcd e.g. gets killed and restarted.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) * If we do not do it now we have to wait for the next LE_ARP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) if (memcmp(mpc->mps_ctrl_addr, empty, ATM_ESA_LEN) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) send_set_mps_ctrl_addr(mpc->mps_ctrl_addr, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) __module_get(THIS_MODULE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) return arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) static void send_set_mps_ctrl_addr(const char *addr, struct mpoa_client *mpc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) struct k_message mesg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) memcpy(mpc->mps_ctrl_addr, addr, ATM_ESA_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) mesg.type = SET_MPS_CTRL_ADDR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) memcpy(mesg.MPS_ctrl, addr, ATM_ESA_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) msg_to_mpoad(&mesg, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) static void mpoad_close(struct atm_vcc *vcc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) struct mpoa_client *mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) mpc = find_mpc_by_vcc(vcc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) if (mpc == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) pr_info("did not find MPC\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) if (!mpc->mpoad_vcc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) pr_info("close for non-present mpoad\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) mpc->mpoad_vcc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) if (mpc->dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) struct lec_priv *priv = netdev_priv(mpc->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) priv->lane2_ops->associate_indicator = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) stop_mpc(mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) dev_put(mpc->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) mpc->in_ops->destroy_cache(mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) mpc->eg_ops->destroy_cache(mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) while ((skb = skb_dequeue(&sk_atm(vcc)->sk_receive_queue))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) atm_return(vcc, skb->truesize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) pr_info("(%s) going down\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) (mpc->dev) ? mpc->dev->name : "<unknown>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) module_put(THIS_MODULE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) static int msg_from_mpoad(struct atm_vcc *vcc, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) struct mpoa_client *mpc = find_mpc_by_vcc(vcc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) struct k_message *mesg = (struct k_message *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) WARN_ON(refcount_sub_and_test(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) if (mpc == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) pr_info("no mpc found\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) dprintk("(%s)", mpc->dev ? mpc->dev->name : "<unknown>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) switch (mesg->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) case MPOA_RES_REPLY_RCVD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) dprintk_cont("mpoa_res_reply_rcvd\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) MPOA_res_reply_rcvd(mesg, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) case MPOA_TRIGGER_RCVD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) dprintk_cont("mpoa_trigger_rcvd\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) MPOA_trigger_rcvd(mesg, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) case INGRESS_PURGE_RCVD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) dprintk_cont("nhrp_purge_rcvd\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) ingress_purge_rcvd(mesg, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) case EGRESS_PURGE_RCVD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) dprintk_cont("egress_purge_reply_rcvd\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) egress_purge_rcvd(mesg, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) case MPS_DEATH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) dprintk_cont("mps_death\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) mps_death(mesg, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) case CACHE_IMPOS_RCVD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) dprintk_cont("cache_impos_rcvd\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) MPOA_cache_impos_rcvd(mesg, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) case SET_MPC_CTRL_ADDR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) dprintk_cont("set_mpc_ctrl_addr\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) set_mpc_ctrl_addr_rcvd(mesg, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) case SET_MPS_MAC_ADDR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) dprintk_cont("set_mps_mac_addr\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) set_mps_mac_addr_rcvd(mesg, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) case CLEAN_UP_AND_EXIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) dprintk_cont("clean_up_and_exit\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) clean_up(mesg, mpc, DIE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) case RELOAD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) dprintk_cont("reload\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) clean_up(mesg, mpc, RELOAD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) case SET_MPC_PARAMS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) dprintk_cont("set_mpc_params\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) mpc->parameters = mesg->content.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) dprintk_cont("unknown message %d\n", mesg->type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) /* Remember that this function may not do things that sleep */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) int msg_to_mpoad(struct k_message *mesg, struct mpoa_client *mpc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) struct sock *sk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) if (mpc == NULL || !mpc->mpoad_vcc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) pr_info("mesg %d to a non-existent mpoad\n", mesg->type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) skb = alloc_skb(sizeof(struct k_message), GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) if (skb == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) skb_put(skb, sizeof(struct k_message));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) skb_copy_to_linear_data(skb, mesg, sizeof(*mesg));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) atm_force_charge(mpc->mpoad_vcc, skb->truesize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) sk = sk_atm(mpc->mpoad_vcc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) skb_queue_tail(&sk->sk_receive_queue, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) sk->sk_data_ready(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) static int mpoa_event_listener(struct notifier_block *mpoa_notifier,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) unsigned long event, void *ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) struct net_device *dev = netdev_notifier_info_to_dev(ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) struct mpoa_client *mpc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) struct lec_priv *priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) if (!net_eq(dev_net(dev), &init_net))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) return NOTIFY_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) if (strncmp(dev->name, "lec", 3))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) return NOTIFY_DONE; /* we are only interested in lec:s */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) switch (event) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) case NETDEV_REGISTER: /* a new lec device was allocated */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) priv = netdev_priv(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) if (priv->lane_version < 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) priv->lane2_ops->associate_indicator = lane2_assoc_ind;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) mpc = find_mpc_by_itfnum(priv->itfnum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) if (mpc == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) dprintk("allocating new mpc for %s\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) mpc = alloc_mpc();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) if (mpc == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) pr_info("no new mpc");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) mpc->dev_num = priv->itfnum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) mpc->dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) dev_hold(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) dprintk("(%s) was initialized\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) case NETDEV_UNREGISTER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) /* the lec device was deallocated */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) mpc = find_mpc_by_lec(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) if (mpc == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) dprintk("device (%s) was deallocated\n", dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) stop_mpc(mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) dev_put(mpc->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) mpc->dev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) case NETDEV_UP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) /* the dev was ifconfig'ed up */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) mpc = find_mpc_by_lec(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) if (mpc == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) if (mpc->mpoad_vcc != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) start_mpc(mpc, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) case NETDEV_DOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) /* the dev was ifconfig'ed down */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) /* this means that the flow of packets from the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) * upper layer stops
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) mpc = find_mpc_by_lec(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) if (mpc == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) if (mpc->mpoad_vcc != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) stop_mpc(mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) case NETDEV_REBOOT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) case NETDEV_CHANGE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) case NETDEV_CHANGEMTU:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) case NETDEV_CHANGEADDR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) case NETDEV_GOING_DOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) return NOTIFY_DONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) * Functions which are called after a message is received from mpcd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) * Msg is reused on purpose.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) static void MPOA_trigger_rcvd(struct k_message *msg, struct mpoa_client *mpc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) __be32 dst_ip = msg->content.in_info.in_dst_ip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) in_cache_entry *entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) entry = mpc->in_ops->get(dst_ip, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) if (entry == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) entry = mpc->in_ops->add_entry(dst_ip, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) entry->entry_state = INGRESS_RESOLVING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) msg->type = SND_MPOA_RES_RQST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) msg->content.in_info = entry->ctrl_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) msg_to_mpoad(msg, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) entry->reply_wait = ktime_get_seconds();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) mpc->in_ops->put(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) if (entry->entry_state == INGRESS_INVALID) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) entry->entry_state = INGRESS_RESOLVING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) msg->type = SND_MPOA_RES_RQST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) msg->content.in_info = entry->ctrl_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) msg_to_mpoad(msg, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) entry->reply_wait = ktime_get_seconds();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) mpc->in_ops->put(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) pr_info("(%s) entry already in resolving state\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) (mpc->dev) ? mpc->dev->name : "<unknown>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) mpc->in_ops->put(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) * Things get complicated because we have to check if there's an egress
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) * shortcut with suitable traffic parameters we could use.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) static void check_qos_and_open_shortcut(struct k_message *msg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) struct mpoa_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) in_cache_entry *entry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) __be32 dst_ip = msg->content.in_info.in_dst_ip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) struct atm_mpoa_qos *qos = atm_mpoa_search_qos(dst_ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) eg_cache_entry *eg_entry = client->eg_ops->get_by_src_ip(dst_ip, client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) if (eg_entry && eg_entry->shortcut) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) if (eg_entry->shortcut->qos.txtp.traffic_class &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) msg->qos.txtp.traffic_class &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) (qos ? qos->qos.txtp.traffic_class : ATM_UBR | ATM_CBR)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) if (eg_entry->shortcut->qos.txtp.traffic_class == ATM_UBR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) entry->shortcut = eg_entry->shortcut;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) else if (eg_entry->shortcut->qos.txtp.max_pcr > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) entry->shortcut = eg_entry->shortcut;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) if (entry->shortcut) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) dprintk("(%s) using egress SVC to reach %pI4\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) client->dev->name, &dst_ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) client->eg_ops->put(eg_entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) if (eg_entry != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) client->eg_ops->put(eg_entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) /* No luck in the egress cache we must open an ingress SVC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) msg->type = OPEN_INGRESS_SVC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) if (qos &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) (qos->qos.txtp.traffic_class == msg->qos.txtp.traffic_class)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) msg->qos = qos->qos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) pr_info("(%s) trying to get a CBR shortcut\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) client->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) memset(&msg->qos, 0, sizeof(struct atm_qos));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) msg_to_mpoad(msg, client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) static void MPOA_res_reply_rcvd(struct k_message *msg, struct mpoa_client *mpc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) __be32 dst_ip = msg->content.in_info.in_dst_ip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) in_cache_entry *entry = mpc->in_ops->get(dst_ip, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) dprintk("(%s) ip %pI4\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) mpc->dev->name, &dst_ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) ddprintk("(%s) entry = %p",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) mpc->dev->name, entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) if (entry == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) pr_info("(%s) ARGH, received res. reply for an entry that doesn't exist.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) mpc->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) ddprintk_cont(" entry_state = %d ", entry->entry_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) if (entry->entry_state == INGRESS_RESOLVED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) pr_info("(%s) RESOLVED entry!\n", mpc->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) mpc->in_ops->put(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) entry->ctrl_info = msg->content.in_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) entry->time = ktime_get_seconds();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) /* Used in refreshing func from now on */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) entry->reply_wait = ktime_get_seconds();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) entry->refresh_time = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) ddprintk_cont("entry->shortcut = %p\n", entry->shortcut);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) if (entry->entry_state == INGRESS_RESOLVING &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) entry->shortcut != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) entry->entry_state = INGRESS_RESOLVED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) mpc->in_ops->put(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) return; /* Shortcut already open... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) if (entry->shortcut != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) pr_info("(%s) entry->shortcut != NULL, impossible!\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) mpc->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) mpc->in_ops->put(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198) check_qos_and_open_shortcut(msg, mpc, entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199) entry->entry_state = INGRESS_RESOLVED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) mpc->in_ops->put(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) static void ingress_purge_rcvd(struct k_message *msg, struct mpoa_client *mpc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) __be32 dst_ip = msg->content.in_info.in_dst_ip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209) __be32 mask = msg->ip_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) in_cache_entry *entry = mpc->in_ops->get_with_mask(dst_ip, mpc, mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) if (entry == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213) pr_info("(%s) purge for a non-existing entry, ip = %pI4\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) mpc->dev->name, &dst_ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) dprintk("(%s) removing an ingress entry, ip = %pI4\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) mpc->dev->name, &dst_ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) write_lock_bh(&mpc->ingress_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) mpc->in_ops->remove_entry(entry, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) write_unlock_bh(&mpc->ingress_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) mpc->in_ops->put(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) entry = mpc->in_ops->get_with_mask(dst_ip, mpc, mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) } while (entry != NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229) static void egress_purge_rcvd(struct k_message *msg, struct mpoa_client *mpc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) __be32 cache_id = msg->content.eg_info.cache_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) eg_cache_entry *entry = mpc->eg_ops->get_by_cache_id(cache_id, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) if (entry == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) dprintk("(%s) purge for a non-existing entry\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236) mpc->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) write_lock_irq(&mpc->egress_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) mpc->eg_ops->remove_entry(entry, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) write_unlock_irq(&mpc->egress_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244) mpc->eg_ops->put(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247) static void purge_egress_shortcut(struct atm_vcc *vcc, eg_cache_entry *entry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) struct sock *sk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) struct k_message *purge_msg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) dprintk("entering\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) if (vcc == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) pr_info("vcc == NULL\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) skb = alloc_skb(sizeof(struct k_message), GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) if (skb == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) pr_info("out of memory\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) skb_put(skb, sizeof(struct k_message));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) memset(skb->data, 0, sizeof(struct k_message));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267) purge_msg = (struct k_message *)skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) purge_msg->type = DATA_PLANE_PURGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) if (entry != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270) purge_msg->content.eg_info = entry->ctrl_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) atm_force_charge(vcc, skb->truesize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) sk = sk_atm(vcc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) skb_queue_tail(&sk->sk_receive_queue, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276) sk->sk_data_ready(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) dprintk("exiting\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281) * Our MPS died. Tell our daemon to send NHRP data plane purge to each
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) * of the egress shortcuts we have.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284) static void mps_death(struct k_message *msg, struct mpoa_client *mpc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286) eg_cache_entry *entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) dprintk("(%s)\n", mpc->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290) if (memcmp(msg->MPS_ctrl, mpc->mps_ctrl_addr, ATM_ESA_LEN)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291) pr_info("(%s) wrong MPS\n", mpc->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295) /* FIXME: This knows too much of the cache structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296) read_lock_irq(&mpc->egress_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) entry = mpc->eg_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298) while (entry != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299) purge_egress_shortcut(entry->shortcut, entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) entry = entry->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302) read_unlock_irq(&mpc->egress_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) mpc->in_ops->destroy_cache(mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305) mpc->eg_ops->destroy_cache(mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308) static void MPOA_cache_impos_rcvd(struct k_message *msg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) struct mpoa_client *mpc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311) uint16_t holding_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) eg_cache_entry *entry = mpc->eg_ops->get_by_cache_id(msg->content.eg_info.cache_id, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) holding_time = msg->content.eg_info.holding_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315) dprintk("(%s) entry = %p, holding_time = %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316) mpc->dev->name, entry, holding_time);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) if (entry == NULL && holding_time) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) entry = mpc->eg_ops->add_entry(msg, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319) mpc->eg_ops->put(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322) if (holding_time) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323) mpc->eg_ops->update(entry, holding_time);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327) write_lock_irq(&mpc->egress_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328) mpc->eg_ops->remove_entry(entry, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329) write_unlock_irq(&mpc->egress_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331) mpc->eg_ops->put(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334) static void set_mpc_ctrl_addr_rcvd(struct k_message *mesg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335) struct mpoa_client *mpc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) struct lec_priv *priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338) int i, retval ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340) uint8_t tlv[4 + 1 + 1 + 1 + ATM_ESA_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) tlv[0] = 00; tlv[1] = 0xa0; tlv[2] = 0x3e; tlv[3] = 0x2a; /* type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343) tlv[4] = 1 + 1 + ATM_ESA_LEN; /* length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344) tlv[5] = 0x02; /* MPOA client */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345) tlv[6] = 0x00; /* number of MPS MAC addresses */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347) memcpy(&tlv[7], mesg->MPS_ctrl, ATM_ESA_LEN); /* MPC ctrl ATM addr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348) memcpy(mpc->our_ctrl_addr, mesg->MPS_ctrl, ATM_ESA_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350) dprintk("(%s) setting MPC ctrl ATM address to",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) mpc->dev ? mpc->dev->name : "<unknown>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352) for (i = 7; i < sizeof(tlv); i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353) dprintk_cont(" %02x", tlv[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354) dprintk_cont("\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356) if (mpc->dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357) priv = netdev_priv(mpc->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358) retval = priv->lane2_ops->associate_req(mpc->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1359) mpc->dev->dev_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1360) tlv, sizeof(tlv));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1361) if (retval == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1362) pr_info("(%s) MPOA device type TLV association failed\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1363) mpc->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1364) retval = priv->lane2_ops->resolve(mpc->dev, NULL, 1, NULL, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1365) if (retval < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1366) pr_info("(%s) targetless LE_ARP request failed\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1367) mpc->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1368) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1369) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1371) static void set_mps_mac_addr_rcvd(struct k_message *msg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1372) struct mpoa_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1373) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1375) if (client->number_of_mps_macs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1376) kfree(client->mps_macs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1377) client->number_of_mps_macs = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1378) client->mps_macs = kmemdup(msg->MPS_ctrl, ETH_ALEN, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1379) if (client->mps_macs == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1380) pr_info("out of memory\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1381) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1382) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1383) client->number_of_mps_macs = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1384) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1386) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1387) * purge egress cache and tell daemon to 'action' (DIE, RELOAD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1388) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1389) static void clean_up(struct k_message *msg, struct mpoa_client *mpc, int action)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1390) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1392) eg_cache_entry *entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1393) msg->type = SND_EGRESS_PURGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1396) /* FIXME: This knows too much of the cache structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1397) read_lock_irq(&mpc->egress_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1398) entry = mpc->eg_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1399) while (entry != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1400) msg->content.eg_info = entry->ctrl_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1401) dprintk("cache_id %u\n", entry->ctrl_info.cache_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1402) msg_to_mpoad(msg, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1403) entry = entry->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1404) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1405) read_unlock_irq(&mpc->egress_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1407) msg->type = action;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1408) msg_to_mpoad(msg, mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1409) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1411) static unsigned long checking_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1413) static void mpc_timer_refresh(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1414) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1415) mpc_timer.expires = jiffies + (MPC_P2 * HZ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1416) checking_time = mpc_timer.expires;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1417) add_timer(&mpc_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1418) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1420) static void mpc_cache_check(struct timer_list *unused)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1421) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1422) struct mpoa_client *mpc = mpcs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1423) static unsigned long previous_resolving_check_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1424) static unsigned long previous_refresh_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1426) while (mpc != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1427) mpc->in_ops->clear_count(mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1428) mpc->eg_ops->clear_expired(mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1429) if (checking_time - previous_resolving_check_time >
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1430) mpc->parameters.mpc_p4 * HZ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1431) mpc->in_ops->check_resolving(mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1432) previous_resolving_check_time = checking_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1433) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1434) if (checking_time - previous_refresh_time >
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1435) mpc->parameters.mpc_p5 * HZ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1436) mpc->in_ops->refresh(mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1437) previous_refresh_time = checking_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1438) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1439) mpc = mpc->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1440) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1441) mpc_timer_refresh();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1442) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1443)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1444) static int atm_mpoa_ioctl(struct socket *sock, unsigned int cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1445) unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1446) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1447) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1448) struct atm_vcc *vcc = ATM_SD(sock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1449)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1450) if (cmd != ATMMPC_CTRL && cmd != ATMMPC_DATA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1451) return -ENOIOCTLCMD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1452)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1453) if (!capable(CAP_NET_ADMIN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1454) return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1456) switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1457) case ATMMPC_CTRL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1458) err = atm_mpoa_mpoad_attach(vcc, (int)arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1459) if (err >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1460) sock->state = SS_CONNECTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1461) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1462) case ATMMPC_DATA:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1463) err = atm_mpoa_vcc_attach(vcc, (void __user *)arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1464) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1465) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1466) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1467) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1468) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1469) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1471) static struct atm_ioctl atm_ioctl_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1472) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1473) .ioctl = atm_mpoa_ioctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1474) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1476) static __init int atm_mpoa_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1477) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1478) register_atm_ioctl(&atm_ioctl_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1480) if (mpc_proc_init() != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1481) pr_info("failed to initialize /proc/mpoa\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1483) pr_info("mpc.c: initialized\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1484)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1485) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1486) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1487)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1488) static void __exit atm_mpoa_cleanup(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1489) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1490) struct mpoa_client *mpc, *tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1491) struct atm_mpoa_qos *qos, *nextqos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1492) struct lec_priv *priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1494) mpc_proc_clean();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1496) del_timer_sync(&mpc_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1497) unregister_netdevice_notifier(&mpoa_notifier);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1498) deregister_atm_ioctl(&atm_ioctl_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1500) mpc = mpcs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1501) mpcs = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1502) while (mpc != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1503) tmp = mpc->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1504) if (mpc->dev != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1505) stop_mpc(mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1506) priv = netdev_priv(mpc->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1507) if (priv->lane2_ops != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1508) priv->lane2_ops->associate_indicator = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1509) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1510) ddprintk("about to clear caches\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1511) mpc->in_ops->destroy_cache(mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1512) mpc->eg_ops->destroy_cache(mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1513) ddprintk("caches cleared\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1514) kfree(mpc->mps_macs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1515) memset(mpc, 0, sizeof(struct mpoa_client));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1516) ddprintk("about to kfree %p\n", mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1517) kfree(mpc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1518) ddprintk("next mpc is at %p\n", tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1519) mpc = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1520) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1521)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1522) qos = qos_head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1523) qos_head = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1524) while (qos != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1525) nextqos = qos->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1526) dprintk("freeing qos entry %p\n", qos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1527) kfree(qos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1528) qos = nextqos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1529) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1530) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1531)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1532) module_init(atm_mpoa_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1533) module_exit(atm_mpoa_cleanup);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1535) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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