wlcore: gather information about firmware stability

It's sometimes useful to gather information about the firmware
stability in long test runs, especially to see if problems are
recurring frequently or not.  With this commit we count the number of
times a hardware recovery was issued and print it out during recovery
and in the driver_state in debugfs.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

diff --git a/drivers/net/wireless/ti/wlcore/debugfs.c b/drivers/net/wireless/ti/wlcore/debugfs.c
index 1cf2cdbae2928095b321bb38d70916d591cb80ca..e61fc2b01046036c4431e9a8e08ef72af9a88181 100644 (file)
--- a/drivers/net/wireless/ti/wlcore/debugfs.c
+++ b/drivers/net/wireless/ti/wlcore/debugfs.c
@@ -490,6 +490,7 @@ static ssize_t driver_state_read(struct file *file, char __user *user_buf,
        DRIVER_STATE_PRINT_HEX(chip.id);
        DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
        DRIVER_STATE_PRINT_STR(chip.phy_fw_ver_str);
+       DRIVER_STATE_PRINT_INT(recovery_count);
 
 #undef DRIVER_STATE_PRINT_INT
 #undef DRIVER_STATE_PRINT_LONG

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 5d3ca6ce9d20fbf75873f99861ead14c41fdbb54..615b40dc981e625aa04d3e67a40036410b03be66 100644 (file)
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -879,7 +879,8 @@ static void wlcore_print_recovery(struct wl1271 *wl)
        if (ret < 0)
                return;
 
-       wl1271_info("pc: 0x%x, hint_sts: 0x%08x", pc, hint_sts);
+       wl1271_info("pc: 0x%x, hint_sts: 0x%08x count: %d",
+                               pc, hint_sts, ++wl->recovery_count);
 
        wlcore_set_partition(wl, &wl->ptable[PART_WORK]);
 }
@@ -5685,6 +5686,7 @@ struct ieee80211_hw *wlcore_alloc_hw(size_t priv_size, u32 aggr_buf_size,
        wl->flags = 0;
        wl->sg_enabled = true;
        wl->sleep_auth = WL1271_PSM_ILLEGAL;
+       wl->recovery_count = 0;
        wl->hw_pg_ver = -1;
        wl->ap_ps_map = 0;
        wl->ap_fw_ps_map = 0;

diff --git a/drivers/net/wireless/ti/wlcore/wlcore.h b/drivers/net/wireless/ti/wlcore/wlcore.h
index 5f580e56a19bbc697d4bc1b4264dfa8e0b3d68c2..4d5c69ecb022e432e2efd76abcb995ba12f79388 100644 (file)
--- a/drivers/net/wireless/ti/wlcore/wlcore.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore.h
@@ -337,6 +337,8 @@ struct wl1271 {
 
        bool enable_11a;
 
+       int recovery_count;
+
        /* Most recently reported noise in dBm */
        s8 noise;