Seems useful - not sure if also would help to add patch later to dump
information via the debug ioctl. No strong opinion on this
On Thu, Jun 14, 2018 at 10:04 AM, Aurelien Aptel <aaptel@xxxxxxxx> wrote:
> Signed-off-by: Aurelien Aptel <aaptel@xxxxxxxx>
> ---
> fs/cifs/cifs_debug.c | 27 +++++++++++++++++++++++++++
> 1 file changed, 27 insertions(+)
>
> diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
> index 116146022aa1..e8db245194e7 100644
> --- a/fs/cifs/cifs_debug.c
> +++ b/fs/cifs/cifs_debug.c
> @@ -126,6 +126,25 @@ static void cifs_debug_tcon(struct seq_file *m, struct cifs_tcon *tcon)
> seq_putc(m, '\n');
> }
>
> +static void
> +cifs_dump_iface(struct seq_file *m, struct cifs_server_iface *iface)
> +{
> + struct sockaddr_in *ipv4 = (struct sockaddr_in *)&iface->sockaddr;
> + struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)&iface->sockaddr;
> +
> + seq_printf(m, "\t\tSpeed: %zu bps\n", iface->speed);
> + seq_puts(m, "\t\tCapabilities: ");
> + if (iface->rdma_capable)
> + seq_puts(m, "rdma ");
> + if (iface->rss_capable)
> + seq_puts(m, "rss ");
> + seq_putc(m, '\n');
> + if (iface->sockaddr.ss_family == AF_INET)
> + seq_printf(m, "\t\tIPv4: %pI4\n", &ipv4->sin_addr);
> + else if (iface->sockaddr.ss_family == AF_INET6)
> + seq_printf(m, "\t\tIPv6: %pI6\n", &ipv6->sin6_addr);
> +}
> +
> static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
> {
> struct list_head *tmp1, *tmp2, *tmp3;
> @@ -312,6 +331,14 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
> mid_entry->mid);
> }
> spin_unlock(&GlobalMid_Lock);
> +
> + spin_lock(&ses->iface_lock);
> + seq_printf(m, "\n\tServer interfaces: %zu\n", ses->iface_count);
> + for (j = 0; j < ses->iface_count; j++) {
> + seq_printf(m, "\t%d)\n", j);
> + cifs_dump_iface(m, &ses->iface_list[j]);
> + }
> + spin_unlock(&ses->iface_lock);
> }
> }
> spin_unlock(&cifs_tcp_ses_lock);
> --
> 2.13.6
>
--
Thanks,
Steve
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