#include <linux/hrtimer.h>
#include <linux/list.h>
#include <linux/proc_fs.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
+#include <linux/seq_file.h>
+#endif
#include <linux/uio.h>
#include <linux/net.h>
#include <linux/netdevice.h>
return "???";
}
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
+static int bcm_proc_show(struct seq_file *m, void *v)
+{
+ struct sock *sk = (struct sock *)m->private;
+ struct bcm_sock *bo = bcm_sk(sk);
+ struct bcm_op *op;
+
+ seq_printf(m, ">>> socket %p", sk->sk_socket);
+ seq_printf(m, " / sk %p", sk);
+ seq_printf(m, " / bo %p", bo);
+ seq_printf(m, " / dropped %lu", bo->dropped_usr_msgs);
+ seq_printf(m, " / bound %s", bcm_proc_getifname(bo->ifindex));
+ seq_printf(m, " <<<\n");
+
+ list_for_each_entry(op, &bo->rx_ops, list) {
+
+ unsigned long reduction;
+
+ /* print only active entries & prevent division by zero */
+ if (!op->frames_abs)
+ continue;
+
+ seq_printf(m, "rx_op: %03X %-5s ",
+ op->can_id, bcm_proc_getifname(op->ifindex));
+ seq_printf(m, "[%d]%c ", op->nframes,
+ (op->flags & RX_CHECK_DLC)?'d':' ');
+ if (op->kt_ival1.tv64)
+ seq_printf(m, "timeo=%lld ",
+ (long long)
+ ktime_to_us(op->kt_ival1));
+
+ if (op->kt_ival2.tv64)
+ seq_printf(m, "thr=%lld ",
+ (long long)
+ ktime_to_us(op->kt_ival2));
+
+ seq_printf(m, "# recv %ld (%ld) => reduction: ",
+ op->frames_filtered, op->frames_abs);
+
+ reduction = 100 - (op->frames_filtered * 100) / op->frames_abs;
+
+ seq_printf(m, "%s%ld%%\n",
+ (reduction == 100)?"near ":"", reduction);
+ }
+
+ list_for_each_entry(op, &bo->tx_ops, list) {
+
+ seq_printf(m, "tx_op: %03X %s [%d] ",
+ op->can_id, bcm_proc_getifname(op->ifindex),
+ op->nframes);
+
+ if (op->kt_ival1.tv64)
+ seq_printf(m, "t1=%lld ",
+ (long long) ktime_to_us(op->kt_ival1));
+
+ if (op->kt_ival2.tv64)
+ seq_printf(m, "t2=%lld ",
+ (long long) ktime_to_us(op->kt_ival2));
+
+ seq_printf(m, "# sent %ld\n", op->frames_abs);
+ }
+ seq_putc(m, '\n');
+ return 0;
+}
+
+static int bcm_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, bcm_proc_show, PDE(inode)->data);
+}
+
+static const struct file_operations bcm_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = bcm_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+#else
static int bcm_read_proc(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
*eof = 1;
return len;
}
+#endif
/*
* bcm_can_tx - send the (next) CAN frame to the appropriate CAN interface
if (proc_dir) {
/* unique socket address as filename */
sprintf(bo->procname, "%p", sock);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
+ bo->bcm_proc_read = proc_create_data(bo->procname, 0644,
+ proc_dir,
+ &bcm_proc_fops, sk);
+#else
bo->bcm_proc_read = create_proc_read_entry(bo->procname, 0644,
proc_dir,
bcm_read_proc, sk);
+#endif
}
return 0;
*
*/
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
+static void can_print_rcvlist(struct seq_file *m, struct hlist_head *rx_list,
+ struct net_device *dev)
+{
+ struct receiver *r;
+ struct hlist_node *n;
+
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(r, n, rx_list, list) {
+ char *fmt = (r->can_id & CAN_EFF_FLAG)?
+ " %-5s %08X %08x %08x %08x %8ld %s\n" :
+ " %-5s %03X %08x %08lx %08lx %8ld %s\n";
+
+ seq_printf(m, fmt, DNAME(dev), r->can_id, r->mask,
+ (unsigned long)r->func, (unsigned long)r->data,
+ r->matches, r->ident);
+ }
+ rcu_read_unlock();
+}
+
+static void can_print_recv_banner(struct seq_file *m)
+{
+ /*
+ * can1. 00000000 00000000 00000000
+ * ....... 0 tp20
+ */
+ seq_puts(m, " device can_id can_mask function"
+ " userdata matches ident\n");
+}
+
+static int can_stats_proc_show(struct seq_file *m, void *v)
+{
+ seq_putc(m, '\n');
+ seq_printf(m, " %8ld transmitted frames (TXF)\n", can_stats.tx_frames);
+ seq_printf(m, " %8ld received frames (RXF)\n", can_stats.rx_frames);
+ seq_printf(m, " %8ld matched frames (RXMF)\n", can_stats.matches);
+
+ seq_putc(m, '\n');
+
+ if (can_stattimer.function == can_stat_update) {
+ seq_printf(m, " %8ld %% total match ratio (RXMR)\n",
+ can_stats.total_rx_match_ratio);
+
+ seq_printf(m, " %8ld frames/s total tx rate (TXR)\n",
+ can_stats.total_tx_rate);
+ seq_printf(m, " %8ld frames/s total rx rate (RXR)\n",
+ can_stats.total_rx_rate);
+
+ seq_putc(m, '\n');
+
+ seq_printf(m, " %8ld %% current match ratio (CRXMR)\n",
+ can_stats.current_rx_match_ratio);
+
+ seq_printf(m, " %8ld frames/s current tx rate (CTXR)\n",
+ can_stats.current_tx_rate);
+ seq_printf(m, " %8ld frames/s current rx rate (CRXR)\n",
+ can_stats.current_rx_rate);
+
+ seq_putc(m, '\n');
+
+ seq_printf(m, " %8ld %% max match ratio (MRXMR)\n",
+ can_stats.max_rx_match_ratio);
+
+ seq_printf(m, " %8ld frames/s max tx rate (MTXR)\n",
+ can_stats.max_tx_rate);
+ seq_printf(m, " %8ld frames/s max rx rate (MRXR)\n",
+ can_stats.max_rx_rate);
+
+ seq_putc(m, '\n');
+ }
+
+ seq_printf(m, " %8ld current receive list entries (CRCV)\n",
+ can_pstats.rcv_entries);
+ seq_printf(m, " %8ld maximum receive list entries (MRCV)\n",
+ can_pstats.rcv_entries_max);
+
+ if (can_pstats.stats_reset)
+ seq_printf(m, "\n %8ld statistic resets (STR)\n",
+ can_pstats.stats_reset);
+
+ if (can_pstats.user_reset)
+ seq_printf(m, " %8ld user statistic resets (USTR)\n",
+ can_pstats.user_reset);
+
+ seq_putc(m, '\n');
+ return 0;
+}
+
+static int can_stats_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, can_stats_proc_show, NULL);
+}
+
+static const struct file_operations can_stats_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = can_stats_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int can_reset_stats_proc_show(struct seq_file *m, void *v)
+{
+ user_reset = 1;
+
+ if (can_stattimer.function == can_stat_update) {
+ seq_printf(m, "Scheduled statistic reset #%ld.\n",
+ can_pstats.stats_reset + 1);
+
+ } else {
+ if (can_stats.jiffies_init != jiffies)
+ can_init_stats();
+
+ seq_printf(m, "Performed statistic reset #%ld.\n",
+ can_pstats.stats_reset);
+ }
+ return 0;
+}
+
+static int can_reset_stats_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, can_reset_stats_proc_show, NULL);
+}
+
+static const struct file_operations can_reset_stats_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = can_reset_stats_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int can_version_proc_show(struct seq_file *m, void *v)
+{
+ seq_printf(m, "%s\n", CAN_VERSION_STRING);
+ return 0;
+}
+
+static int can_version_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, can_version_proc_show, NULL);
+}
+
+static const struct file_operations can_version_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = can_version_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int can_rcvlist_proc_show(struct seq_file *m, void *v)
+{
+ /* double cast to prevent GCC warning */
+ int idx = (int)(long)m->private;
+ struct dev_rcv_lists *d;
+ struct hlist_node *n;
+
+ seq_printf(m, "\nreceive list '%s':\n", rx_list_name[idx]);
+
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(d, n, &can_rx_dev_list, list) {
+
+ if (!hlist_empty(&d->rx[idx])) {
+ can_print_recv_banner(m);
+ can_print_rcvlist(m, &d->rx[idx], d->dev);
+ } else
+ seq_printf(m, " (%s: no entry)\n", DNAME(d->dev));
+ }
+ rcu_read_unlock();
+
+ seq_putc(m, '\n');
+ return 0;
+}
+
+static int can_rcvlist_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, can_rcvlist_proc_show, PDE(inode)->data);
+}
+
+static const struct file_operations can_rcvlist_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = can_rcvlist_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int can_rcvlist_sff_proc_show(struct seq_file *m, void *v)
+{
+ struct dev_rcv_lists *d;
+ struct hlist_node *n;
+
+ /* RX_SFF */
+ seq_puts(m, "\nreceive list 'rx_sff':\n");
+
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(d, n, &can_rx_dev_list, list) {
+ int i, all_empty = 1;
+ /* check wether at least one list is non-empty */
+ for (i = 0; i < 0x800; i++)
+ if (!hlist_empty(&d->rx_sff[i])) {
+ all_empty = 0;
+ break;
+ }
+
+ if (!all_empty) {
+ can_print_recv_banner(m);
+ for (i = 0; i < 0x800; i++) {
+ if (!hlist_empty(&d->rx_sff[i]))
+ can_print_rcvlist(m, &d->rx_sff[i],
+ d->dev);
+ }
+ } else
+ seq_printf(m, " (%s: no entry)\n", DNAME(d->dev));
+ }
+ rcu_read_unlock();
+
+ seq_putc(m, '\n');
+ return 0;
+}
+
+static int can_rcvlist_sff_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, can_rcvlist_sff_proc_show, NULL);
+}
+
+static const struct file_operations can_rcvlist_sff_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = can_rcvlist_sff_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+#else
static int can_print_rcvlist(char *page, int len, struct hlist_head *rx_list,
struct net_device *dev)
{
*eof = 1;
return len;
}
+#endif
/*
* proc utility functions
*/
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)
static struct proc_dir_entry *can_create_proc_readentry(const char *name,
mode_t mode,
read_proc_t *read_proc,
else
return NULL;
}
+#endif
static void can_remove_proc_readentry(const char *name)
{
#endif
/* own procfs entries from the AF_CAN core */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
+ pde_version = proc_create(CAN_PROC_VERSION, 0644, can_dir,
+ &can_version_proc_fops);
+ pde_stats = proc_create(CAN_PROC_STATS, 0644, can_dir,
+ &can_stats_proc_fops);
+ pde_reset_stats = proc_create(CAN_PROC_RESET_STATS, 0644, can_dir,
+ &can_reset_stats_proc_fops);
+ pde_rcvlist_err = proc_create_data(CAN_PROC_RCVLIST_ERR, 0644, can_dir,
+ &can_rcvlist_proc_fops, (void *)RX_ERR);
+ pde_rcvlist_all = proc_create_data(CAN_PROC_RCVLIST_ALL, 0644, can_dir,
+ &can_rcvlist_proc_fops, (void *)RX_ALL);
+ pde_rcvlist_fil = proc_create_data(CAN_PROC_RCVLIST_FIL, 0644, can_dir,
+ &can_rcvlist_proc_fops, (void *)RX_FIL);
+ pde_rcvlist_inv = proc_create_data(CAN_PROC_RCVLIST_INV, 0644, can_dir,
+ &can_rcvlist_proc_fops, (void *)RX_INV);
+ pde_rcvlist_eff = proc_create_data(CAN_PROC_RCVLIST_EFF, 0644, can_dir,
+ &can_rcvlist_proc_fops, (void *)RX_EFF);
+ pde_rcvlist_sff = proc_create(CAN_PROC_RCVLIST_SFF, 0644, can_dir,
+ &can_rcvlist_sff_proc_fops);
+#else
pde_version = can_create_proc_readentry(CAN_PROC_VERSION, 0644,
can_proc_read_version, NULL);
pde_stats = can_create_proc_readentry(CAN_PROC_STATS, 0644,
can_proc_read_rcvlist, (void *)RX_EFF);
pde_rcvlist_sff = can_create_proc_readentry(CAN_PROC_RCVLIST_SFF, 0644,
can_proc_read_rcvlist_sff, NULL);
+#endif
}
/*
projects / socketcan-devel.git / commitdiff