Source of mpoa_caches.c - linux-imx - PHYTEC BitBucket (Stash)

Raw file
Source viewDiff to previous
​x
static eg_cache_entry *eg_cache_get_by_tag(__be32 tag, struct mpoa_client *mpc)
 
// SPDX-License-Identifier: GPL-2.0
#include <linux/types.h>
#include <linux/atmmpc.h>
#include <linux/slab.h>
#include <linux/time.h>
​
#include "mpoa_caches.h"
#include "mpc.h"
​
/*
 * mpoa_caches.c: Implementation of ingress and egress cache
 * handling functions
 */
​
#if 0
#define dprintk(format, args...)                    \
    printk(KERN_DEBUG "mpoa:%s: " format, __FILE__, ##args)  /* debug */
#else
#define dprintk(format, args...)                    \
    do { if (0)                         \
        printk(KERN_DEBUG "mpoa:%s: " format, __FILE__, ##args);\
    } while (0)
#endif
​
#if 0
#define ddprintk(format, args...)                   \
    printk(KERN_DEBUG "mpoa:%s: " format, __FILE__, ##args)  /* debug */
#else
#define ddprintk(format, args...)                   \
    do { if (0)                         \
        printk(KERN_DEBUG "mpoa:%s: " format, __FILE__, ##args);\
    } while (0)
#endif
​
static in_cache_entry *in_cache_get(__be32 dst_ip,
                    struct mpoa_client *client)
{
    in_cache_entry *entry;
​
    read_lock_bh(&client->ingress_lock);
    entry = client->in_cache;
    while (entry != NULL) {
        if (entry->ctrl_info.in_dst_ip == dst_ip) {
            refcount_inc(&entry->use);
            read_unlock_bh(&client->ingress_lock);
            return entry;
        }
        entry = entry->next;
    }
    read_unlock_bh(&client->ingress_lock);
​
    return NULL;
}
​
static in_cache_entry *in_cache_get_with_mask(__be32 dst_ip,
                          struct mpoa_client *client,
                          __be32 mask)
{
    in_cache_entry *entry;
​
    read_lock_bh(&client->ingress_lock);
    entry = client->in_cache;
    while (entry != NULL) {
        if ((entry->ctrl_info.in_dst_ip & mask) == (dst_ip & mask)) {
            refcount_inc(&entry->use);
            read_unlock_bh(&client->ingress_lock);
            return entry;
        }
        entry = entry->next;
    }
    read_unlock_bh(&client->ingress_lock);
​
    return NULL;
​
}
​
static in_cache_entry *in_cache_get_by_vcc(struct atm_vcc *vcc,
                       struct mpoa_client *client)
{
    in_cache_entry *entry;
​
    read_lock_bh(&client->ingress_lock);
    entry = client->in_cache;
    while (entry != NULL) {
        if (entry->shortcut == vcc) {
            refcount_inc(&entry->use);
            read_unlock_bh(&client->ingress_lock);
            return entry;
        }
        entry = entry->next;
    }
    read_unlock_bh(&client->ingress_lock);