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-rw-r--r--net/caif/caif_socket.c113
-rw-r--r--net/caif/chnl_net.c12
2 files changed, 7 insertions, 118 deletions
diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index a97d97a3a512..5016fa57b623 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -43,34 +43,9 @@ enum caif_states {
#define TX_FLOW_ON_BIT 1
#define RX_FLOW_ON_BIT 2
-static struct dentry *debugfsdir;
-
-#ifdef CONFIG_DEBUG_FS
-struct debug_fs_counter {
- atomic_t caif_nr_socks;
- atomic_t caif_sock_create;
- atomic_t num_connect_req;
- atomic_t num_connect_resp;
- atomic_t num_connect_fail_resp;
- atomic_t num_disconnect;
- atomic_t num_remote_shutdown_ind;
- atomic_t num_tx_flow_off_ind;
- atomic_t num_tx_flow_on_ind;
- atomic_t num_rx_flow_off;
- atomic_t num_rx_flow_on;
-};
-static struct debug_fs_counter cnt;
-#define dbfs_atomic_inc(v) atomic_inc_return(v)
-#define dbfs_atomic_dec(v) atomic_dec_return(v)
-#else
-#define dbfs_atomic_inc(v) 0
-#define dbfs_atomic_dec(v) 0
-#endif
-
struct caifsock {
struct sock sk; /* must be first member */
struct cflayer layer;
- char name[CAIF_LAYER_NAME_SZ]; /* Used for debugging */
u32 flow_state;
struct caif_connect_request conn_req;
struct mutex readlock;
@@ -161,7 +136,6 @@ static int caif_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
atomic_read(&cf_sk->sk.sk_rmem_alloc),
sk_rcvbuf_lowwater(cf_sk));
set_rx_flow_off(cf_sk);
- dbfs_atomic_inc(&cnt.num_rx_flow_off);
caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_OFF_REQ);
}
@@ -172,7 +146,6 @@ static int caif_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
set_rx_flow_off(cf_sk);
if (net_ratelimit())
pr_debug("sending flow OFF due to rmem_schedule\n");
- dbfs_atomic_inc(&cnt.num_rx_flow_off);
caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_OFF_REQ);
}
skb->dev = NULL;
@@ -233,14 +206,12 @@ static void caif_ctrl_cb(struct cflayer *layr,
switch (flow) {
case CAIF_CTRLCMD_FLOW_ON_IND:
/* OK from modem to start sending again */
- dbfs_atomic_inc(&cnt.num_tx_flow_on_ind);
set_tx_flow_on(cf_sk);
cf_sk->sk.sk_state_change(&cf_sk->sk);
break;
case CAIF_CTRLCMD_FLOW_OFF_IND:
/* Modem asks us to shut up */
- dbfs_atomic_inc(&cnt.num_tx_flow_off_ind);
set_tx_flow_off(cf_sk);
cf_sk->sk.sk_state_change(&cf_sk->sk);
break;
@@ -249,7 +220,6 @@ static void caif_ctrl_cb(struct cflayer *layr,
/* We're now connected */
caif_client_register_refcnt(&cf_sk->layer,
cfsk_hold, cfsk_put);
- dbfs_atomic_inc(&cnt.num_connect_resp);
cf_sk->sk.sk_state = CAIF_CONNECTED;
set_tx_flow_on(cf_sk);
cf_sk->sk.sk_state_change(&cf_sk->sk);
@@ -263,7 +233,6 @@ static void caif_ctrl_cb(struct cflayer *layr,
case CAIF_CTRLCMD_INIT_FAIL_RSP:
/* Connect request failed */
- dbfs_atomic_inc(&cnt.num_connect_fail_resp);
cf_sk->sk.sk_err = ECONNREFUSED;
cf_sk->sk.sk_state = CAIF_DISCONNECTED;
cf_sk->sk.sk_shutdown = SHUTDOWN_MASK;
@@ -277,7 +246,6 @@ static void caif_ctrl_cb(struct cflayer *layr,
case CAIF_CTRLCMD_REMOTE_SHUTDOWN_IND:
/* Modem has closed this connection, or device is down. */
- dbfs_atomic_inc(&cnt.num_remote_shutdown_ind);
cf_sk->sk.sk_shutdown = SHUTDOWN_MASK;
cf_sk->sk.sk_err = ECONNRESET;
set_rx_flow_on(cf_sk);
@@ -297,7 +265,6 @@ static void caif_check_flow_release(struct sock *sk)
return;
if (atomic_read(&sk->sk_rmem_alloc) <= sk_rcvbuf_lowwater(cf_sk)) {
- dbfs_atomic_inc(&cnt.num_rx_flow_on);
set_rx_flow_on(cf_sk);
caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_ON_REQ);
}
@@ -856,7 +823,6 @@ static int caif_connect(struct socket *sock, struct sockaddr *uaddr,
/*ifindex = id of the interface.*/
cf_sk->conn_req.ifindex = cf_sk->sk.sk_bound_dev_if;
- dbfs_atomic_inc(&cnt.num_connect_req);
cf_sk->layer.receive = caif_sktrecv_cb;
err = caif_connect_client(sock_net(sk), &cf_sk->conn_req,
@@ -945,8 +911,6 @@ static int caif_release(struct socket *sock)
spin_unlock_bh(&sk->sk_receive_queue.lock);
sock->sk = NULL;
- dbfs_atomic_inc(&cnt.num_disconnect);
-
WARN_ON(IS_ERR(cf_sk->debugfs_socket_dir));
if (cf_sk->debugfs_socket_dir != NULL)
debugfs_remove_recursive(cf_sk->debugfs_socket_dir);
@@ -1054,14 +1018,12 @@ static void caif_sock_destructor(struct sock *sk)
return;
}
sk_stream_kill_queues(&cf_sk->sk);
- dbfs_atomic_dec(&cnt.caif_nr_socks);
caif_free_client(&cf_sk->layer);
}
static int caif_create(struct net *net, struct socket *sock, int protocol,
int kern)
{
- int num;
struct sock *sk = NULL;
struct caifsock *cf_sk = NULL;
static struct proto prot = {.name = "PF_CAIF",
@@ -1122,34 +1084,6 @@ static int caif_create(struct net *net, struct socket *sock, int protocol,
cf_sk->sk.sk_priority = CAIF_PRIO_NORMAL;
cf_sk->conn_req.link_selector = CAIF_LINK_LOW_LATENCY;
cf_sk->conn_req.protocol = protocol;
- /* Increase the number of sockets created. */
- dbfs_atomic_inc(&cnt.caif_nr_socks);
- num = dbfs_atomic_inc(&cnt.caif_sock_create);
-#ifdef CONFIG_DEBUG_FS
- if (!IS_ERR(debugfsdir)) {
-
- /* Fill in some information concerning the misc socket. */
- snprintf(cf_sk->name, sizeof(cf_sk->name), "cfsk%d", num);
-
- cf_sk->debugfs_socket_dir =
- debugfs_create_dir(cf_sk->name, debugfsdir);
-
- debugfs_create_u32("sk_state", S_IRUSR | S_IWUSR,
- cf_sk->debugfs_socket_dir,
- (u32 *) &cf_sk->sk.sk_state);
- debugfs_create_u32("flow_state", S_IRUSR | S_IWUSR,
- cf_sk->debugfs_socket_dir, &cf_sk->flow_state);
- debugfs_create_u32("sk_rmem_alloc", S_IRUSR | S_IWUSR,
- cf_sk->debugfs_socket_dir,
- (u32 *) &cf_sk->sk.sk_rmem_alloc);
- debugfs_create_u32("sk_wmem_alloc", S_IRUSR | S_IWUSR,
- cf_sk->debugfs_socket_dir,
- (u32 *) &cf_sk->sk.sk_wmem_alloc);
- debugfs_create_u32("identity", S_IRUSR | S_IWUSR,
- cf_sk->debugfs_socket_dir,
- (u32 *) &cf_sk->layer.id);
- }
-#endif
release_sock(&cf_sk->sk);
return 0;
}
@@ -1161,7 +1095,7 @@ static struct net_proto_family caif_family_ops = {
.owner = THIS_MODULE,
};
-static int af_caif_init(void)
+static int __init caif_sktinit_module(void)
{
int err = sock_register(&caif_family_ops);
if (!err)
@@ -1169,54 +1103,9 @@ static int af_caif_init(void)
return 0;
}
-static int __init caif_sktinit_module(void)
-{
-#ifdef CONFIG_DEBUG_FS
- debugfsdir = debugfs_create_dir("caif_sk", NULL);
- if (!IS_ERR(debugfsdir)) {
- debugfs_create_u32("num_sockets", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.caif_nr_socks);
- debugfs_create_u32("num_create", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.caif_sock_create);
- debugfs_create_u32("num_connect_req", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.num_connect_req);
- debugfs_create_u32("num_connect_resp", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.num_connect_resp);
- debugfs_create_u32("num_connect_fail_resp", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.num_connect_fail_resp);
- debugfs_create_u32("num_disconnect", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.num_disconnect);
- debugfs_create_u32("num_remote_shutdown_ind",
- S_IRUSR | S_IWUSR, debugfsdir,
- (u32 *) &cnt.num_remote_shutdown_ind);
- debugfs_create_u32("num_tx_flow_off_ind", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.num_tx_flow_off_ind);
- debugfs_create_u32("num_tx_flow_on_ind", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.num_tx_flow_on_ind);
- debugfs_create_u32("num_rx_flow_off", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.num_rx_flow_off);
- debugfs_create_u32("num_rx_flow_on", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.num_rx_flow_on);
- }
-#endif
- return af_caif_init();
-}
-
static void __exit caif_sktexit_module(void)
{
sock_unregister(PF_CAIF);
- if (debugfsdir != NULL)
- debugfs_remove_recursive(debugfsdir);
}
module_init(caif_sktinit_module);
module_exit(caif_sktexit_module);
diff --git a/net/caif/chnl_net.c b/net/caif/chnl_net.c
index 865690948bbc..a751d9b263ed 100644
--- a/net/caif/chnl_net.c
+++ b/net/caif/chnl_net.c
@@ -74,7 +74,6 @@ static int chnl_recv_cb(struct cflayer *layr, struct cfpkt *pkt)
struct sk_buff *skb;
struct chnl_net *priv = container_of(layr, struct chnl_net, chnl);
int pktlen;
- int err = 0;
const u8 *ip_version;
u8 buf;
@@ -95,8 +94,7 @@ static int chnl_recv_cb(struct cflayer *layr, struct cfpkt *pkt)
/* check the version of IP */
ip_version = skb_header_pointer(skb, 0, 1, &buf);
- if (!ip_version)
- return -EINVAL;
+
switch (*ip_version >> 4) {
case 4:
skb->protocol = htons(ETH_P_IP);
@@ -105,6 +103,7 @@ static int chnl_recv_cb(struct cflayer *layr, struct cfpkt *pkt)
skb->protocol = htons(ETH_P_IPV6);
break;
default:
+ priv->netdev->stats.rx_errors++;
return -EINVAL;
}
@@ -123,7 +122,7 @@ static int chnl_recv_cb(struct cflayer *layr, struct cfpkt *pkt)
priv->netdev->stats.rx_packets++;
priv->netdev->stats.rx_bytes += pktlen;
- return err;
+ return 0;
}
static int delete_device(struct chnl_net *dev)
@@ -221,11 +220,13 @@ static int chnl_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (skb->len > priv->netdev->mtu) {
pr_warn("Size of skb exceeded MTU\n");
+ dev->stats.tx_errors++;
return -ENOSPC;
}
if (!priv->flowenabled) {
pr_debug("dropping packets flow off\n");
+ dev->stats.tx_dropped++;
return NETDEV_TX_BUSY;
}
@@ -240,8 +241,7 @@ static int chnl_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
/* Send the packet down the stack. */
result = priv->chnl.dn->transmit(priv->chnl.dn, pkt);
if (result) {
- if (result == -EAGAIN)
- result = NETDEV_TX_BUSY;
+ dev->stats.tx_dropped++;
return result;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 08:45:17 +0000