mac80211: add ieee80211_vif param to tsf functions

TSF can be kept per vif.
Add ieee80211_vif param to set/get/reset_tsf, and move
the debugfs entries to the per-vif directory.

Update all the drivers that implement these callbacks.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 47 insertions, 1 deletions

diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index dd0462917518..9352819a986b 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -21,6 +21,7 @@
 #include "rate.h"
 #include "debugfs.h"
 #include "debugfs_netdev.h"
+#include "driver-ops.h"
 
 static ssize_t ieee80211_if_read(
         struct ieee80211_sub_if_data *sdata,
@@ -331,6 +332,46 @@ static ssize_t ieee80211_if_fmt_num_buffered_multicast(
 }
 __IEEE80211_IF_FILE(num_buffered_multicast, NULL);
 
+/* IBSS attributes */
+static ssize_t ieee80211_if_fmt_tsf(
+        const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
+{
+        struct ieee80211_local *local = sdata->local;
+        u64 tsf;
+
+        tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);
+
+        return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
+}
+
+static ssize_t ieee80211_if_parse_tsf(
+        struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
+{
+        struct ieee80211_local *local = sdata->local;
+        unsigned long long tsf;
+        int ret;
+
+        if (strncmp(buf, "reset", 5) == 0) {
+                if (local->ops->reset_tsf) {
+                        drv_reset_tsf(local, sdata);
+                        wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
+                }
+        } else {
+                ret = kstrtoull(buf, 10, &tsf);
+                if (ret < 0)
+                        return -EINVAL;
+                if (local->ops->set_tsf) {
+                        drv_set_tsf(local, sdata, tsf);
+                        wiphy_info(local->hw.wiphy,
+                                   "debugfs set TSF to %#018llx\n", tsf);
+                }
+        }
+
+        return buflen;
+}
+__IEEE80211_IF_FILE_W(tsf);
+
+
 /* WDS attributes */
 IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
 
@@ -421,6 +462,11 @@ static void add_ap_files(struct ieee80211_sub_if_data *sdata)
         DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
 }
 
+static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
+{
+        DEBUGFS_ADD_MODE(tsf, 0600);
+}
+
 static void add_wds_files(struct ieee80211_sub_if_data *sdata)
 {
         DEBUGFS_ADD(drop_unencrypted);
@@ -515,7 +561,7 @@ static void add_files(struct ieee80211_sub_if_data *sdata)
                 add_sta_files(sdata);
                 break;
         case NL80211_IFTYPE_ADHOC:
-                /* XXX */
+                add_ibss_files(sdata);
                 break;
         case NL80211_IFTYPE_AP:
                 add_ap_files(sdata);