diff options
author | Sergey Matyukevich <sergey.matyukevich.os@quantenna.com> | 2017-07-28 02:06:51 +0300 |
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committer | Kalle Valo <kvalo@codeaurora.org> | 2017-08-03 12:58:13 +0300 |
commit | c7ead2abd26ab536a2e479af605a6d9529e3a694 (patch) | |
tree | 7e0c48ad2b66c2a6425236ad52860c7669ac8e51 /drivers/net/wireless/quantenna | |
parent | 97883695d596e296bf327b65e1a4db32fa302d16 (diff) | |
download | op-kernel-dev-c7ead2abd26ab536a2e479af605a6d9529e3a694.zip op-kernel-dev-c7ead2abd26ab536a2e479af605a6d9529e3a694.tar.gz |
qtnfmac: implement scan timeout
Userspace tools may hang on scan in the case when scan completion event
is not returned by firmware. This patch implements the scan timeout
to avoid such situation.
Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Avinash Patil <avinashp@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/quantenna')
-rw-r--r-- | drivers/net/wireless/quantenna/qtnfmac/cfg80211.c | 22 | ||||
-rw-r--r-- | drivers/net/wireless/quantenna/qtnfmac/cfg80211.h | 4 | ||||
-rw-r--r-- | drivers/net/wireless/quantenna/qtnfmac/core.c | 2 | ||||
-rw-r--r-- | drivers/net/wireless/quantenna/qtnfmac/core.h | 3 | ||||
-rw-r--r-- | drivers/net/wireless/quantenna/qtnfmac/event.c | 2 |
5 files changed, 29 insertions, 4 deletions
diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c index ac8fdc1..856fa6e 100644 --- a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c +++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c @@ -579,19 +579,33 @@ qtnf_del_station(struct wiphy *wiphy, struct net_device *dev, return ret; } +static void qtnf_scan_timeout(unsigned long data) +{ + struct qtnf_wmac *mac = (struct qtnf_wmac *)data; + + pr_warn("mac%d scan timed out\n", mac->macid); + qtnf_scan_done(mac, true); +} + static int qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) { struct qtnf_wmac *mac = wiphy_priv(wiphy); - int ret; mac->scan_req = request; - ret = qtnf_cmd_send_scan(mac); - if (ret) + if (qtnf_cmd_send_scan(mac)) { pr_err("MAC%u: failed to start scan\n", mac->macid); + mac->scan_req = NULL; + return -EFAULT; + } - return ret; + mac->scan_timeout.data = (unsigned long)mac; + mac->scan_timeout.function = qtnf_scan_timeout; + mod_timer(&mac->scan_timeout, + jiffies + QTNF_SCAN_TIMEOUT_SEC * HZ); + + return 0; } static int diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h index 5bd3312..6a4af52 100644 --- a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h +++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h @@ -34,10 +34,14 @@ static inline void qtnf_scan_done(struct qtnf_wmac *mac, bool aborted) .aborted = aborted, }; + mutex_lock(&mac->mac_lock); + if (mac->scan_req) { cfg80211_scan_done(mac->scan_req, &info); mac->scan_req = NULL; } + + mutex_unlock(&mac->mac_lock); } #endif /* _QTN_FMAC_CFG80211_H_ */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/core.c b/drivers/net/wireless/quantenna/qtnfmac/core.c index 17d17e3..5e60180 100644 --- a/drivers/net/wireless/quantenna/qtnfmac/core.c +++ b/drivers/net/wireless/quantenna/qtnfmac/core.c @@ -288,6 +288,8 @@ static struct qtnf_wmac *qtnf_core_mac_alloc(struct qtnf_bus *bus, mac->iflist[i].mac = mac; mac->iflist[i].vifid = i; qtnf_sta_list_init(&mac->iflist[i].sta_list); + mutex_init(&mac->mac_lock); + init_timer(&mac->scan_timeout); } qtnf_mac_init_primary_intf(mac); diff --git a/drivers/net/wireless/quantenna/qtnfmac/core.h b/drivers/net/wireless/quantenna/qtnfmac/core.h index 099aad7..066fcd1 100644 --- a/drivers/net/wireless/quantenna/qtnfmac/core.h +++ b/drivers/net/wireless/quantenna/qtnfmac/core.h @@ -46,6 +46,7 @@ #define QTNF_MAX_EVENT_QUEUE_LEN 255 #define QTNF_DEFAULT_BG_SCAN_PERIOD 300 #define QTNF_MAX_BG_SCAN_PERIOD 0xffff +#define QTNF_SCAN_TIMEOUT_SEC 15 #define QTNF_DEF_BSS_PRIORITY 0 #define QTNF_DEF_WDOG_TIMEOUT 5 @@ -147,6 +148,8 @@ struct qtnf_wmac { struct cfg80211_scan_request *scan_req; struct cfg80211_chan_def chandef; struct cfg80211_chan_def csa_chandef; + struct mutex mac_lock; /* lock during wmac speicific ops */ + struct timer_list scan_timeout; }; struct qtnf_hw_info { diff --git a/drivers/net/wireless/quantenna/qtnfmac/event.c b/drivers/net/wireless/quantenna/qtnfmac/event.c index 43d2e7f..0fc2814 100644 --- a/drivers/net/wireless/quantenna/qtnfmac/event.c +++ b/drivers/net/wireless/quantenna/qtnfmac/event.c @@ -345,6 +345,8 @@ qtnf_event_handle_scan_complete(struct qtnf_wmac *mac, return -EINVAL; } + if (timer_pending(&mac->scan_timeout)) + del_timer_sync(&mac->scan_timeout); qtnf_scan_done(mac, le32_to_cpu(status->flags) & QLINK_SCAN_ABORTED); return 0; |