* [PATCH 0/7] ath10k: add multi-channel support
@ 2015-01-30 8:41 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 8:41 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
New qca6174 with wmi-tlv firmware supports
multi-channel operation. To make use of it
ath10k needs a few changes: implement mac80211's
chanctx API and rework tx queue control a bit.
There are still rough edges (involving seldom
beacon reports from firmware causing beacon loss
in some cases, etc). Hopefully this will be fixed
either in driver or firmware eventually.
Changes since RFC:
* I've sent `ath10k: defer AP self-peer removal
wait` separately now because it's not really
required for multi-channel per se
Michal Kazior (7):
ath10k: allow empty ssid vdev config
ath10k: implement chanctx API
ath10k: implement adaptive qcs command
ath10k: protect ar->arvifs linking with data_lock
ath10k: rework tx queue locking
ath10k: implement tx pause wmi event
ath10k: enable multi-channel on supported devices
drivers/net/wireless/ath/ath10k/core.c | 1 +
drivers/net/wireless/ath/ath10k/core.h | 16 +
drivers/net/wireless/ath/ath10k/htt_rx.c | 87 +++-
drivers/net/wireless/ath/ath10k/htt_tx.c | 11 +-
drivers/net/wireless/ath/ath10k/mac.c | 672 ++++++++++++++++++++++++++----
drivers/net/wireless/ath/ath10k/mac.h | 57 +++
drivers/net/wireless/ath/ath10k/wmi-ops.h | 16 +
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 118 +++++-
drivers/net/wireless/ath/ath10k/wmi-tlv.h | 46 ++
drivers/net/wireless/ath/ath10k/wmi.c | 18 +-
drivers/net/wireless/ath/ath10k/wmi.h | 1 +
11 files changed, 958 insertions(+), 85 deletions(-)
--
1.8.5.3
^ permalink raw reply [flat|nested] 58+ messages in thread
* [PATCH 0/7] ath10k: add multi-channel support
@ 2015-01-30 8:41 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 8:41 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
New qca6174 with wmi-tlv firmware supports
multi-channel operation. To make use of it
ath10k needs a few changes: implement mac80211's
chanctx API and rework tx queue control a bit.
There are still rough edges (involving seldom
beacon reports from firmware causing beacon loss
in some cases, etc). Hopefully this will be fixed
either in driver or firmware eventually.
Changes since RFC:
* I've sent `ath10k: defer AP self-peer removal
wait` separately now because it's not really
required for multi-channel per se
Michal Kazior (7):
ath10k: allow empty ssid vdev config
ath10k: implement chanctx API
ath10k: implement adaptive qcs command
ath10k: protect ar->arvifs linking with data_lock
ath10k: rework tx queue locking
ath10k: implement tx pause wmi event
ath10k: enable multi-channel on supported devices
drivers/net/wireless/ath/ath10k/core.c | 1 +
drivers/net/wireless/ath/ath10k/core.h | 16 +
drivers/net/wireless/ath/ath10k/htt_rx.c | 87 +++-
drivers/net/wireless/ath/ath10k/htt_tx.c | 11 +-
drivers/net/wireless/ath/ath10k/mac.c | 672 ++++++++++++++++++++++++++----
drivers/net/wireless/ath/ath10k/mac.h | 57 +++
drivers/net/wireless/ath/ath10k/wmi-ops.h | 16 +
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 118 +++++-
drivers/net/wireless/ath/ath10k/wmi-tlv.h | 46 ++
drivers/net/wireless/ath/ath10k/wmi.c | 18 +-
drivers/net/wireless/ath/ath10k/wmi.h | 1 +
11 files changed, 958 insertions(+), 85 deletions(-)
--
1.8.5.3
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 58+ messages in thread
* [PATCH 1/7] ath10k: allow empty ssid vdev config
2015-01-30 8:41 ` Michal Kazior
@ 2015-01-30 8:41 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 8:41 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
It doesn't make much sense to reject a valid
firmware configuration combination.
Since SSID isn't known early on it might make
sense to allow driver to start vdev without SSID
and restart it later.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 2 --
drivers/net/wireless/ath/ath10k/wmi.c | 2 --
2 files changed, 4 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index be32db9..ccafb69 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -1302,8 +1302,6 @@ ath10k_wmi_tlv_op_gen_vdev_start(struct ath10k *ar,
void *ptr;
u32 flags = 0;
- if (WARN_ON(arg->ssid && arg->ssid_len == 0))
- return ERR_PTR(-EINVAL);
if (WARN_ON(arg->hidden_ssid && !arg->ssid))
return ERR_PTR(-EINVAL);
if (WARN_ON(arg->ssid_len > sizeof(cmd->ssid.ssid)))
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index ce6f0c7..97ee2e9 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -4264,8 +4264,6 @@ ath10k_wmi_op_gen_vdev_start(struct ath10k *ar,
const char *cmdname;
u32 flags = 0;
- if (WARN_ON(arg->ssid && arg->ssid_len == 0))
- return ERR_PTR(-EINVAL);
if (WARN_ON(arg->hidden_ssid && !arg->ssid))
return ERR_PTR(-EINVAL);
if (WARN_ON(arg->ssid_len > sizeof(cmd->ssid.ssid)))
--
1.8.5.3
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH 1/7] ath10k: allow empty ssid vdev config
@ 2015-01-30 8:41 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 8:41 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
It doesn't make much sense to reject a valid
firmware configuration combination.
Since SSID isn't known early on it might make
sense to allow driver to start vdev without SSID
and restart it later.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 2 --
drivers/net/wireless/ath/ath10k/wmi.c | 2 --
2 files changed, 4 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index be32db9..ccafb69 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -1302,8 +1302,6 @@ ath10k_wmi_tlv_op_gen_vdev_start(struct ath10k *ar,
void *ptr;
u32 flags = 0;
- if (WARN_ON(arg->ssid && arg->ssid_len == 0))
- return ERR_PTR(-EINVAL);
if (WARN_ON(arg->hidden_ssid && !arg->ssid))
return ERR_PTR(-EINVAL);
if (WARN_ON(arg->ssid_len > sizeof(cmd->ssid.ssid)))
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index ce6f0c7..97ee2e9 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -4264,8 +4264,6 @@ ath10k_wmi_op_gen_vdev_start(struct ath10k *ar,
const char *cmdname;
u32 flags = 0;
- if (WARN_ON(arg->ssid && arg->ssid_len == 0))
- return ERR_PTR(-EINVAL);
if (WARN_ON(arg->hidden_ssid && !arg->ssid))
return ERR_PTR(-EINVAL);
if (WARN_ON(arg->ssid_len > sizeof(cmd->ssid.ssid)))
--
1.8.5.3
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH 2/7] ath10k: implement chanctx API
2015-01-30 8:41 ` Michal Kazior
@ 2015-01-30 8:41 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 8:41 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
The chanctx API will allow ath10k to support
multi-channel operation.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/core.c | 1 +
drivers/net/wireless/ath/ath10k/core.h | 8 +
drivers/net/wireless/ath/ath10k/htt_rx.c | 87 ++++-
drivers/net/wireless/ath/ath10k/mac.c | 551 +++++++++++++++++++++++++++----
drivers/net/wireless/ath/ath10k/wmi.c | 13 +-
5 files changed, 584 insertions(+), 76 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 5e9e1a6..57f70327 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -1116,6 +1116,7 @@ int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode)
ar->free_vdev_map = (1LL << ar->max_num_vdevs) - 1;
+ INIT_LIST_HEAD(&ar->arctxs);
INIT_LIST_HEAD(&ar->arvifs);
return 0;
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index abb3203..cf7963d 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -260,6 +260,11 @@ struct ath10k_sta {
#endif
};
+struct ath10k_chanctx {
+ struct list_head list;
+ struct ieee80211_chanctx_conf conf;
+};
+
#define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ)
struct ath10k_vif {
@@ -277,6 +282,7 @@ struct ath10k_vif {
dma_addr_t beacon_paddr;
struct ath10k *ar;
+ struct ath10k_chanctx *arctx;
struct ieee80211_vif *vif;
bool is_started;
@@ -561,6 +567,7 @@ struct ath10k {
struct cfg80211_chan_def chandef;
unsigned long long free_vdev_map;
+ struct ath10k_vif *monitor_arvif;
bool monitor;
int monitor_vdev_id;
bool monitor_started;
@@ -590,6 +597,7 @@ struct ath10k {
/* protects shared structure data */
spinlock_t data_lock;
+ struct list_head arctxs;
struct list_head arvifs;
struct list_head peers;
wait_queue_head_t peer_mapping_wq;
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index c1da44f..b18aa8e 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -773,8 +773,74 @@ static void ath10k_htt_rx_h_rates(struct ath10k *ar,
}
}
+static struct ieee80211_channel *
+ath10k_htt_rx_h_peer_channel(struct ath10k *ar, struct htt_rx_desc *rxd)
+{
+ struct ath10k_peer *peer;
+ struct ath10k_vif *arvif;
+ u16 peer_id;
+
+ lockdep_assert_held(&ar->data_lock);
+
+ if (!rxd)
+ return NULL;
+
+ if (rxd->attention.flags &
+ __cpu_to_le32(RX_ATTENTION_FLAGS_PEER_IDX_INVALID))
+ return NULL;
+
+ if (!(rxd->msdu_end.info0 &
+ __cpu_to_le32(RX_MSDU_END_INFO0_FIRST_MSDU)))
+ return NULL;
+
+ peer_id = MS(__le32_to_cpu(rxd->mpdu_start.info0),
+ RX_MPDU_START_INFO0_PEER_IDX);
+
+ peer = ath10k_peer_find_by_id(ar, peer_id);
+ if (!peer)
+ return NULL;
+
+ arvif = ath10k_get_arvif(ar, peer->vdev_id);
+ if (WARN_ON_ONCE(!arvif->arctx))
+ return NULL;
+
+ if (WARN_ON_ONCE(!arvif->arctx))
+ return NULL;
+
+ return arvif->arctx->conf.def.chan;
+}
+
+static struct ieee80211_channel *
+ath10k_htt_rx_h_vdev_channel(struct ath10k *ar, u32 vdev_id)
+{
+ struct ath10k_vif *arvif;
+
+ lockdep_assert_held(&ar->data_lock);
+
+ list_for_each_entry(arvif, &ar->arvifs, list)
+ if (arvif->vdev_id == vdev_id && arvif->arctx)
+ return arvif->arctx->conf.def.chan;
+
+ return NULL;
+}
+
+static struct ieee80211_channel *
+ath10k_htt_rx_h_any_channel(struct ath10k *ar)
+{
+ struct ath10k_chanctx *arctx;
+
+ lockdep_assert_held(&ar->data_lock);
+
+ list_for_each_entry(arctx, &ar->arctxs, list)
+ return arctx->conf.def.chan;
+
+ return NULL;
+}
+
static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
- struct ieee80211_rx_status *status)
+ struct ieee80211_rx_status *status,
+ struct htt_rx_desc *rxd,
+ u32 vdev_id)
{
struct ieee80211_channel *ch;
@@ -782,6 +848,12 @@ static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
ch = ar->scan_channel;
if (!ch)
ch = ar->rx_channel;
+ if (!ch)
+ ch = ath10k_htt_rx_h_peer_channel(ar, rxd);
+ if (!ch)
+ ch = ath10k_htt_rx_h_vdev_channel(ar, vdev_id);
+ if (!ch)
+ ch = ath10k_htt_rx_h_any_channel(ar);
spin_unlock_bh(&ar->data_lock);
if (!ch)
@@ -819,7 +891,8 @@ static void ath10k_htt_rx_h_mactime(struct ath10k *ar,
static void ath10k_htt_rx_h_ppdu(struct ath10k *ar,
struct sk_buff_head *amsdu,
- struct ieee80211_rx_status *status)
+ struct ieee80211_rx_status *status,
+ u32 vdev_id)
{
struct sk_buff *first;
struct htt_rx_desc *rxd;
@@ -851,7 +924,7 @@ static void ath10k_htt_rx_h_ppdu(struct ath10k *ar,
status->flag |= RX_FLAG_NO_SIGNAL_VAL;
ath10k_htt_rx_h_signal(ar, status, rxd);
- ath10k_htt_rx_h_channel(ar, status);
+ ath10k_htt_rx_h_channel(ar, status, rxd, vdev_id);
ath10k_htt_rx_h_rates(ar, status, rxd);
}
@@ -1522,7 +1595,7 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
break;
}
- ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status);
+ ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status, 0xffff);
ath10k_htt_rx_h_unchain(ar, &amsdu, ret > 0);
ath10k_htt_rx_h_filter(ar, &amsdu, rx_status);
ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status);
@@ -1569,7 +1642,7 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
return;
}
- ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status);
+ ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status, 0xffff);
ath10k_htt_rx_h_filter(ar, &amsdu, rx_status);
ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status);
ath10k_htt_rx_h_deliver(ar, &amsdu, rx_status);
@@ -1796,7 +1869,7 @@ static void ath10k_htt_rx_h_rx_offload(struct ath10k *ar,
status->flag |= RX_FLAG_NO_SIGNAL_VAL;
ath10k_htt_rx_h_rx_offload_prot(status, msdu);
- ath10k_htt_rx_h_channel(ar, status);
+ ath10k_htt_rx_h_channel(ar, status, NULL, rx->vdev_id);
ath10k_process_rx(ar, status, msdu);
}
}
@@ -1869,7 +1942,7 @@ static void ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb)
* better to report something than nothing though. This
* should still give an idea about rx rate to the user.
*/
- ath10k_htt_rx_h_ppdu(ar, &amsdu, status);
+ ath10k_htt_rx_h_ppdu(ar, &amsdu, status, vdev_id);
ath10k_htt_rx_h_filter(ar, &amsdu, status);
ath10k_htt_rx_h_mpdu(ar, &amsdu, status);
ath10k_htt_rx_h_deliver(ar, &amsdu, status);
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 15e47f4..16fddc7 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -751,13 +751,32 @@ static int ath10k_monitor_stop(struct ath10k *ar)
static int ath10k_monitor_recalc(struct ath10k *ar)
{
+ struct ath10k_chanctx *arctx;
bool should_start;
+ int num_ctx;
lockdep_assert_held(&ar->conf_mutex);
- should_start = ar->monitor ||
- ar->filter_flags & FIF_PROMISC_IN_BSS ||
- test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
+ should_start = (ar->monitor ||
+ ar->filter_flags & FIF_PROMISC_IN_BSS ||
+ test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags)) &&
+ !list_empty(&ar->arctxs) &&
+ !ar->monitor_arvif;
+
+ num_ctx = 0;
+ list_for_each_entry(arctx, &ar->arctxs, list)
+ num_ctx++;
+
+ /* FIXME: It remains unclear if CAC on multi-channel will work this
+ * way. Multi-channel DFS must be revised.
+ *
+ * FIXME: Hopefully 2x STA on different channels + monitor interface
+ * will simply setup something like a promiscuous mode.
+ */
+ if (WARN_ON(should_start &&
+ test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags) &&
+ num_ctx > 1))
+ return -EPERM;
ath10k_dbg(ar, ATH10K_DBG_MAC,
"mac monitor recalc started? %d should? %d\n",
@@ -829,6 +848,19 @@ static int ath10k_stop_cac(struct ath10k *ar)
return 0;
}
+static bool ath10k_mac_has_radar_enabled(struct ath10k *ar)
+{
+ struct ath10k_chanctx *arctx;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ list_for_each_entry(arctx, &ar->arctxs, list)
+ if (arctx->conf.radar_enabled)
+ return true;
+
+ return false;
+}
+
static void ath10k_recalc_radar_detection(struct ath10k *ar)
{
int ret;
@@ -837,7 +869,7 @@ static void ath10k_recalc_radar_detection(struct ath10k *ar)
ath10k_stop_cac(ar);
- if (!ar->radar_enabled)
+ if (!ath10k_mac_has_radar_enabled(ar))
return;
if (ar->num_started_vdevs > 0)
@@ -858,12 +890,17 @@ static void ath10k_recalc_radar_detection(struct ath10k *ar)
static int ath10k_vdev_start_restart(struct ath10k_vif *arvif, bool restart)
{
struct ath10k *ar = arvif->ar;
- struct cfg80211_chan_def *chandef = &ar->chandef;
+ struct cfg80211_chan_def *chandef;
struct wmi_vdev_start_request_arg arg = {};
int ret = 0;
lockdep_assert_held(&ar->conf_mutex);
+ if (WARN_ON(!arvif->arctx))
+ return -EINVAL;
+
+ chandef = &arvif->arctx->conf.def;
+
reinit_completion(&ar->vdev_setup_done);
arg.vdev_id = arvif->vdev_id;
@@ -1101,6 +1138,76 @@ static int ath10k_mac_setup_prb_tmpl(struct ath10k_vif *arvif)
return 0;
}
+static int ath10k_mac_vif_fix_hidden_ssid(struct ath10k_vif *arvif)
+{
+ struct ath10k *ar = arvif->ar;
+ int ret;
+
+ /* When originally vdev is started during assign_vif_chanctx() some
+ * information is missing, notably SSID. Firmware revisions with beacon
+ * offloading require the SSID to be provided during vdev (re)start to
+ * handle hidden SSID properly.
+ *
+ * Vdev restart must be done after vdev has been both started and
+ * upped. Otherwise some firmware revisions (at least 10.2) fail to
+ * deliver vdev restart response event causing timeouts during vdev
+ * syncing in ath10k.
+ *
+ * Note: The vdev down/up and template reinstallation could be skipped
+ * since only wmi-tlv firmware are known to have beacon offload and
+ * wmi-tlv doesn't seem to misbehave like 10.2 wrt vdev restart
+ * response delivery. It's probably more robust to keep it as is.
+ */
+ if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
+ return 0;
+
+ if (WARN_ON(!arvif->is_started))
+ return -EINVAL;
+
+ if (WARN_ON(!arvif->is_up))
+ return -EINVAL;
+
+ ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
+ if (ret) {
+ ath10k_warn(ar, "failed to bring down ap vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ return ret;
+ }
+
+ /* Vdev down reset beacon & presp templates. Reinstall them. Otherwise
+ * firmware will crash upon vdev up.
+ */
+
+ ret = ath10k_mac_setup_bcn_tmpl(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to update beacon template: %d\n", ret);
+ return ret;
+ }
+
+ ret = ath10k_mac_setup_prb_tmpl(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to update presp template: %d\n", ret);
+ return ret;
+ }
+
+ ret = ath10k_vdev_restart(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to restart ap vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ return ret;
+ }
+
+ ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
+ arvif->bssid);
+ if (ret) {
+ ath10k_warn(ar, "failed to bring up ap vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
static void ath10k_control_beaconing(struct ath10k_vif *arvif,
struct ieee80211_bss_conf *info)
{
@@ -1110,9 +1217,11 @@ static void ath10k_control_beaconing(struct ath10k_vif *arvif,
lockdep_assert_held(&arvif->ar->conf_mutex);
if (!info->enable_beacon) {
- ath10k_vdev_stop(arvif);
+ ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
+ if (ret)
+ ath10k_warn(ar, "failed to down vdev_id %i: %d\n",
+ arvif->vdev_id, ret);
- arvif->is_started = false;
arvif->is_up = false;
spin_lock_bh(&arvif->ar->data_lock);
@@ -1124,10 +1233,6 @@ static void ath10k_control_beaconing(struct ath10k_vif *arvif,
arvif->tx_seq_no = 0x1000;
- ret = ath10k_vdev_start(arvif);
- if (ret)
- return;
-
arvif->aid = 0;
ether_addr_copy(arvif->bssid, info->bssid);
@@ -1136,13 +1241,18 @@ static void ath10k_control_beaconing(struct ath10k_vif *arvif,
if (ret) {
ath10k_warn(ar, "failed to bring up vdev %d: %i\n",
arvif->vdev_id, ret);
- ath10k_vdev_stop(arvif);
return;
}
- arvif->is_started = true;
arvif->is_up = true;
+ ret = ath10k_mac_vif_fix_hidden_ssid(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to fix hidden ssid for vdev %i, expect trouble: %d\n",
+ arvif->vdev_id, ret);
+ return;
+ }
+
ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d up\n", arvif->vdev_id);
}
@@ -1362,13 +1472,17 @@ static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
struct wmi_peer_assoc_complete_arg *arg)
{
struct ieee80211_bss_conf *info = &vif->bss_conf;
+ struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
struct cfg80211_bss *bss;
const u8 *rsnie = NULL;
const u8 *wpaie = NULL;
lockdep_assert_held(&ar->conf_mutex);
- bss = cfg80211_get_bss(ar->hw->wiphy, ar->hw->conf.chandef.chan,
+ if (WARN_ON(!arvif->arctx))
+ return;
+
+ bss = cfg80211_get_bss(ar->hw->wiphy, arvif->arctx->conf.def.chan,
info->bssid, NULL, 0, 0, 0);
if (bss) {
const struct cfg80211_bss_ies *ies;
@@ -1399,10 +1513,12 @@ static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
}
static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
+ struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct wmi_peer_assoc_complete_arg *arg)
{
struct wmi_rate_set_arg *rateset = &arg->peer_legacy_rates;
+ struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
const struct ieee80211_supported_band *sband;
const struct ieee80211_rate *rates;
u32 ratemask;
@@ -1410,8 +1526,11 @@ static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
lockdep_assert_held(&ar->conf_mutex);
- sband = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band];
- ratemask = sta->supp_rates[ar->hw->conf.chandef.chan->band];
+ if (WARN_ON(!arvif->arctx))
+ return;
+
+ sband = ar->hw->wiphy->bands[arvif->arctx->conf.def.chan->band];
+ ratemask = sta->supp_rates[arvif->arctx->conf.def.chan->band];
rates = sband->bitrates;
rateset->num_rates = 0;
@@ -1664,9 +1783,13 @@ static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
struct ieee80211_sta *sta,
struct wmi_peer_assoc_complete_arg *arg)
{
+ struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
enum wmi_phy_mode phymode = MODE_UNKNOWN;
- switch (ar->hw->conf.chandef.chan->band) {
+ if (WARN_ON(!arvif->arctx))
+ return;
+
+ switch (arvif->arctx->conf.def.chan->band) {
case IEEE80211_BAND_2GHZ:
if (sta->vht_cap.vht_supported) {
if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
@@ -1728,7 +1851,7 @@ static int ath10k_peer_assoc_prepare(struct ath10k *ar,
ath10k_peer_assoc_h_basic(ar, vif, sta, arg);
ath10k_peer_assoc_h_crypto(ar, vif, arg);
- ath10k_peer_assoc_h_rates(ar, sta, arg);
+ ath10k_peer_assoc_h_rates(ar, vif, sta, arg);
ath10k_peer_assoc_h_ht(ar, sta, arg);
ath10k_peer_assoc_h_vht(ar, sta, arg);
ath10k_peer_assoc_h_qos(ar, vif, sta, arg);
@@ -2676,6 +2799,7 @@ void ath10k_halt(struct ath10k *ar)
clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
ar->filter_flags = 0;
ar->monitor = false;
+ ar->monitor_arvif = NULL;
if (ar->monitor_started)
ath10k_monitor_stop(ar);
@@ -2929,7 +3053,7 @@ static const char *chandef_get_width(enum nl80211_chan_width width)
return "?";
}
-static void ath10k_config_chan(struct ath10k *ar)
+static void ath10k_mac_chan_reconfigure(struct ath10k *ar)
{
struct ath10k_vif *arvif;
int ret;
@@ -3062,26 +3186,6 @@ static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
mutex_lock(&ar->conf_mutex);
- if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
- ath10k_dbg(ar, ATH10K_DBG_MAC,
- "mac config channel %dMHz flags 0x%x radar %d\n",
- conf->chandef.chan->center_freq,
- conf->chandef.chan->flags,
- conf->radar_enabled);
-
- spin_lock_bh(&ar->data_lock);
- ar->rx_channel = conf->chandef.chan;
- spin_unlock_bh(&ar->data_lock);
-
- ar->radar_enabled = conf->radar_enabled;
- ath10k_recalc_radar_detection(ar);
-
- if (!cfg80211_chandef_identical(&ar->chandef, &conf->chandef)) {
- ar->chandef = conf->chandef;
- ath10k_config_chan(ar);
- }
- }
-
if (changed & IEEE80211_CONF_CHANGE_PS)
ath10k_config_ps(ar);
@@ -3329,6 +3433,15 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
goto err_peer_delete;
}
+ if (vif->type == NL80211_IFTYPE_MONITOR) {
+ ar->monitor_arvif = arvif;
+ ret = ath10k_monitor_recalc(ar);
+ if (ret) {
+ ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
+ goto err_peer_delete;
+ }
+ }
+
mutex_unlock(&ar->conf_mutex);
return 0;
@@ -3395,6 +3508,13 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
ath10k_peer_cleanup(ar, arvif->vdev_id);
+ if (vif->type == NL80211_IFTYPE_MONITOR) {
+ ar->monitor_arvif = NULL;
+ ret = ath10k_monitor_recalc(ar);
+ if (ret)
+ ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
+ }
+
mutex_unlock(&ar->conf_mutex);
}
@@ -3958,22 +4078,6 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
ath10k_mac_dec_num_stations(arvif);
goto exit;
}
-
- if (vif->type == NL80211_IFTYPE_STATION) {
- WARN_ON(arvif->is_started);
-
- ret = ath10k_vdev_start(arvif);
- if (ret) {
- ath10k_warn(ar, "failed to start vdev %i: %d\n",
- arvif->vdev_id, ret);
- WARN_ON(ath10k_peer_delete(ar, arvif->vdev_id,
- sta->addr));
- ath10k_mac_dec_num_stations(arvif);
- goto exit;
- }
-
- arvif->is_started = true;
- }
} else if ((old_state == IEEE80211_STA_NONE &&
new_state == IEEE80211_STA_NOTEXIST)) {
/*
@@ -3982,18 +4086,6 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
ath10k_dbg(ar, ATH10K_DBG_MAC,
"mac vdev %d peer delete %pM (sta gone)\n",
arvif->vdev_id, sta->addr);
-
- if (vif->type == NL80211_IFTYPE_STATION) {
- WARN_ON(!arvif->is_started);
-
- ret = ath10k_vdev_stop(arvif);
- if (ret)
- ath10k_warn(ar, "failed to stop vdev %i: %d\n",
- arvif->vdev_id, ret);
-
- arvif->is_started = false;
- }
-
ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
if (ret)
ath10k_warn(ar, "failed to delete peer %pM for vdev %d: %i\n",
@@ -4812,14 +4904,19 @@ static int ath10k_set_bitrate_mask(struct ieee80211_hw *hw,
{
struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
struct ath10k *ar = arvif->ar;
- enum ieee80211_band band = ar->hw->conf.chandef.chan->band;
+ enum ieee80211_band band;
u8 fixed_rate = WMI_FIXED_RATE_NONE;
u8 fixed_nss = ar->num_rf_chains;
u8 force_sgi;
+ if (!arvif->arctx)
+ return -EPERM;
+
if (ar->cfg_tx_chainmask)
fixed_nss = get_nss_from_chainmask(ar->cfg_tx_chainmask);
+ band = arvif->arctx->conf.def.chan->band;
+
force_sgi = mask->control[band].gi;
if (force_sgi == NL80211_TXRATE_FORCE_LGI)
return -EINVAL;
@@ -4956,6 +5053,316 @@ static int ath10k_ampdu_action(struct ieee80211_hw *hw,
return -EINVAL;
}
+static void
+ath10k_mac_update_rx_channel(struct ath10k *ar)
+{
+ struct ath10k_chanctx *arctx;
+ struct cfg80211_chan_def *def = NULL;
+ int num = 0;
+
+ /* Both locks are required because ar->rx_channel is modified. This
+ * allows readers to hold either lock.
+ */
+ lockdep_assert_held(&ar->conf_mutex);
+ lockdep_assert_held(&ar->data_lock);
+
+ /* FIXME: Sort of an optimization and a workaround. Peers and vifs are
+ * on a linked list now. Doing a lookup peer -> vif -> chanctx for each
+ * ppdu on Rx may reduce performance on low-end systems. It should be
+ * possible to make tables/hashmaps to speed the lookup up (be vary of
+ * cpu data cache lines though regarding sizes) but to keep the initial
+ * implementation simple and less intrusive fallback to the slow lookup
+ * only for multi-channel cases. Single-channel cases will remain to
+ * use the old channel derival and thus performance should not be
+ * affected much.
+ */
+ list_for_each_entry(arctx, &ar->arctxs, list) {
+ def = &arctx->conf.def;
+ ++num;
+ }
+
+ if (num == 1) {
+ ar->rx_channel = def->chan;
+ ar->chandef = *def;
+ } else {
+ ar->rx_channel = NULL;
+ }
+}
+
+static void
+ath10k_mac_chan_ctx_init(struct ath10k *ar,
+ struct ath10k_chanctx *arctx,
+ struct ieee80211_chanctx_conf *conf)
+{
+ lockdep_assert_held(&ar->conf_mutex);
+ lockdep_assert_held(&ar->data_lock);
+
+ memset(arctx, 0, sizeof(*arctx));
+
+ INIT_LIST_HEAD(&arctx->list);
+ list_add(&arctx->list, &ar->arctxs);
+
+ arctx->conf = *conf;
+}
+
+static int
+ath10k_mac_op_add_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_chanctx_conf *ctx)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx add freq %hu width %d ptr %p\n",
+ ctx->def.chan->center_freq, ctx->def.width, ctx);
+
+ mutex_lock(&ar->conf_mutex);
+
+ spin_lock_bh(&ar->data_lock);
+ ath10k_mac_chan_ctx_init(ar, arctx, ctx);
+ ath10k_mac_update_rx_channel(ar);
+ spin_unlock_bh(&ar->data_lock);
+
+ ath10k_recalc_radar_detection(ar);
+ ath10k_monitor_recalc(ar);
+
+ mutex_unlock(&ar->conf_mutex);
+
+ return 0;
+}
+
+static void
+ath10k_mac_op_remove_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_chanctx_conf *ctx)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+ struct ath10k_vif *arvif;
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx remove freq %hu width %d ptr %p\n",
+ ctx->def.chan->center_freq, ctx->def.width, ctx);
+
+ mutex_lock(&ar->conf_mutex);
+
+ spin_lock_bh(&ar->data_lock);
+ list_del(&arctx->list);
+ list_for_each_entry(arvif, &ar->arvifs, list)
+ WARN(arvif->arctx == arctx,
+ "trying to remove chanctx which is bound to vdev_id %i\n",
+ arvif->vdev_id);
+ ath10k_mac_update_rx_channel(ar);
+ spin_unlock_bh(&ar->data_lock);
+
+ ath10k_recalc_radar_detection(ar);
+ ath10k_monitor_recalc(ar);
+
+ mutex_unlock(&ar->conf_mutex);
+}
+
+static void
+ath10k_mac_op_change_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_chanctx_conf *ctx,
+ u32 changed)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx change freq %hu->%hu width %d->%d ptr %p changed %x\n",
+ arctx->conf.def.chan->center_freq,
+ ctx->def.chan->center_freq,
+ arctx->conf.def.width, ctx->def.width,
+ ctx, changed);
+
+ /* This shouldn't really happen because channel switching should use
+ * switch_vif_chanctx().
+ */
+ if (WARN_ON(changed & IEEE80211_CHANCTX_CHANGE_CHANNEL))
+ goto unlock;
+
+ spin_lock_bh(&ar->data_lock);
+ arctx->conf = *ctx;
+ spin_unlock_bh(&ar->data_lock);
+
+ ath10k_recalc_radar_detection(ar);
+
+ /* FIXME: How to configure Rx chains properly? */
+
+ /* No other actions are actually necessary. Firmware maintains channel
+ * definitions per vdev internally and there's no host-side channel
+ * context abstraction to configure, e.g. channel width.
+ */
+
+unlock:
+ mutex_unlock(&ar->conf_mutex);
+}
+
+static int
+ath10k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_chanctx_conf *ctx)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+ struct ath10k_vif *arvif = (void *)vif->drv_priv;
+ int ret;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx assign ptr %p vdev_id %i\n",
+ ctx, arvif->vdev_id);
+
+ if (WARN_ON(arvif->is_started)) {
+ mutex_unlock(&ar->conf_mutex);
+ return -EBUSY;
+ }
+
+ spin_lock_bh(&ar->data_lock);
+ if (WARN_ON(arvif->arctx)) {
+ spin_unlock_bh(&ar->data_lock);
+ mutex_unlock(&ar->conf_mutex);
+ return -EALREADY;
+ }
+ arvif->arctx = arctx;
+ spin_unlock_bh(&ar->data_lock);
+
+ ret = ath10k_vdev_start(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to start vdev %i addr %pM on freq %d: %d\n",
+ arvif->vdev_id, vif->addr,
+ arctx->conf.def.chan->center_freq, ret);
+ goto err;
+ }
+
+ arvif->is_started = true;
+
+ if (vif->type == NL80211_IFTYPE_MONITOR) {
+ ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, 0, vif->addr);
+ if (ret) {
+ ath10k_warn(ar, "failed to up monitor vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ goto err_stop;
+ }
+
+ arvif->is_up = true;
+ }
+
+ mutex_unlock(&ar->conf_mutex);
+ return 0;
+
+err_stop:
+ ath10k_vdev_stop(arvif);
+ arvif->is_started = false;
+
+err:
+ spin_lock_bh(&ar->data_lock);
+ arvif->arctx = NULL;
+ spin_unlock_bh(&ar->data_lock);
+
+ mutex_unlock(&ar->conf_mutex);
+ return ret;
+}
+
+static void
+ath10k_mac_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_chanctx_conf *ctx)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+ struct ath10k_vif *arvif = (void *)vif->drv_priv;
+ int ret;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx unassign ptr %p vdev_id %i\n",
+ ctx, arvif->vdev_id);
+
+ spin_lock_bh(&ar->data_lock);
+ WARN_ON(!arvif->arctx);
+ WARN_ON(arvif->arctx != arctx);
+ arvif->arctx = NULL;
+ spin_unlock_bh(&ar->data_lock);
+
+ WARN_ON(!arvif->is_started);
+
+ if (vif->type == NL80211_IFTYPE_MONITOR) {
+ WARN_ON(!arvif->is_up);
+
+ ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
+ if (ret)
+ ath10k_warn(ar, "failed to down monitor vdev %i: %d\n",
+ arvif->vdev_id, ret);
+
+ arvif->is_up = false;
+ }
+
+ ret = ath10k_vdev_stop(arvif);
+ if (ret)
+ ath10k_warn(ar, "failed to stop vdev %i: %d\n",
+ arvif->vdev_id, ret);
+
+ arvif->is_started = false;
+
+ mutex_unlock(&ar->conf_mutex);
+}
+
+static int
+ath10k_mac_op_switch_vif_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_vif_chanctx_switch *vifs,
+ int n_vifs,
+ enum ieee80211_chanctx_switch_mode mode)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_vif *arvif;
+ struct ath10k_chanctx *arctx_new, *arctx_old;
+ int i;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx switch n_vifs %d mode %d\n",
+ n_vifs, mode);
+
+ spin_lock_bh(&ar->data_lock);
+ for (i = 0; i < n_vifs; i++) {
+ arvif = ath10k_vif_to_arvif(vifs[i].vif);
+ arctx_new = (void *)vifs[i].new_ctx->drv_priv;
+ arctx_old = (void *)vifs[i].old_ctx->drv_priv;
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx switch vdev_id %i freq %hu->%hu width %d->%d ptr %p->%p\n",
+ arvif->vdev_id,
+ vifs[i].old_ctx->def.chan->center_freq,
+ vifs[i].new_ctx->def.chan->center_freq,
+ vifs[i].old_ctx->def.width,
+ vifs[i].new_ctx->def.width,
+ arctx_old, arctx_new);
+
+ if (mode == CHANCTX_SWMODE_SWAP_CONTEXTS) {
+ list_del(&arctx_old->list);
+ ath10k_mac_chan_ctx_init(ar, arctx_new,
+ vifs[i].new_ctx);
+ }
+
+ arvif->arctx = arctx_new;
+ arvif->arctx->conf = *vifs[i].new_ctx;
+ }
+ ath10k_mac_update_rx_channel(ar);
+ spin_unlock_bh(&ar->data_lock);
+
+ /* FIXME: Reconfigure only affected vifs */
+ ath10k_mac_chan_reconfigure(ar);
+
+ mutex_unlock(&ar->conf_mutex);
+ return 0;
+}
+
static const struct ieee80211_ops ath10k_ops = {
.tx = ath10k_tx,
.start = ath10k_start,
@@ -4986,6 +5393,12 @@ static const struct ieee80211_ops ath10k_ops = {
.get_et_sset_count = ath10k_debug_get_et_sset_count,
.get_et_stats = ath10k_debug_get_et_stats,
.get_et_strings = ath10k_debug_get_et_strings,
+ .add_chanctx = ath10k_mac_op_add_chanctx,
+ .remove_chanctx = ath10k_mac_op_remove_chanctx,
+ .change_chanctx = ath10k_mac_op_change_chanctx,
+ .assign_vif_chanctx = ath10k_mac_op_assign_vif_chanctx,
+ .unassign_vif_chanctx = ath10k_mac_op_unassign_vif_chanctx,
+ .switch_vif_chanctx = ath10k_mac_op_switch_vif_chanctx,
CFG80211_TESTMODE_CMD(ath10k_tm_cmd)
@@ -5357,6 +5770,7 @@ int ath10k_mac_register(struct ath10k *ar)
IEEE80211_HW_REPORTS_TX_ACK_STATUS |
IEEE80211_HW_HAS_RATE_CONTROL |
IEEE80211_HW_AP_LINK_PS |
+ IEEE80211_HW_WANT_MONITOR_VIF |
IEEE80211_HW_SPECTRUM_MGMT;
ar->hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS;
@@ -5374,6 +5788,7 @@ int ath10k_mac_register(struct ath10k *ar)
ar->hw->vif_data_size = sizeof(struct ath10k_vif);
ar->hw->sta_data_size = sizeof(struct ath10k_sta);
+ ar->hw->chanctx_data_size = sizeof(struct ath10k_chanctx);
ar->hw->max_listen_interval = ATH10K_MAX_HW_LISTEN_INTERVAL;
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 97ee2e9..0b49ec4 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -2504,6 +2504,7 @@ static void ath10k_dfs_radar_report(struct ath10k *ar,
u64 tsf)
{
u32 reg0, reg1, tsf32l;
+ struct ieee80211_channel *ch;
struct pulse_event pe;
u64 tsf64;
u8 rssi, width;
@@ -2532,6 +2533,15 @@ static void ath10k_dfs_radar_report(struct ath10k *ar,
if (!ar->dfs_detector)
return;
+ spin_lock_bh(&ar->data_lock);
+ ch = ar->rx_channel;
+ spin_unlock_bh(&ar->data_lock);
+
+ if (!ch) {
+ ath10k_warn(ar, "failed to derive channel for radar pulse, treating as radar\n");
+ goto radar_detected;
+ }
+
/* report event to DFS pattern detector */
tsf32l = __le32_to_cpu(phyerr->tsf_timestamp);
tsf64 = tsf & (~0xFFFFFFFFULL);
@@ -2547,7 +2557,7 @@ static void ath10k_dfs_radar_report(struct ath10k *ar,
rssi = 0;
pe.ts = tsf64;
- pe.freq = ar->hw->conf.chandef.chan->center_freq;
+ pe.freq = ch->center_freq;
pe.width = width;
pe.rssi = rssi;
@@ -2563,6 +2573,7 @@ static void ath10k_dfs_radar_report(struct ath10k *ar,
return;
}
+radar_detected:
ath10k_dbg(ar, ATH10K_DBG_REGULATORY, "dfs radar detected\n");
ATH10K_DFS_STAT_INC(ar, radar_detected);
--
1.8.5.3
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH 2/7] ath10k: implement chanctx API
@ 2015-01-30 8:41 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 8:41 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
The chanctx API will allow ath10k to support
multi-channel operation.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/core.c | 1 +
drivers/net/wireless/ath/ath10k/core.h | 8 +
drivers/net/wireless/ath/ath10k/htt_rx.c | 87 ++++-
drivers/net/wireless/ath/ath10k/mac.c | 551 +++++++++++++++++++++++++++----
drivers/net/wireless/ath/ath10k/wmi.c | 13 +-
5 files changed, 584 insertions(+), 76 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 5e9e1a6..57f70327 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -1116,6 +1116,7 @@ int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode)
ar->free_vdev_map = (1LL << ar->max_num_vdevs) - 1;
+ INIT_LIST_HEAD(&ar->arctxs);
INIT_LIST_HEAD(&ar->arvifs);
return 0;
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index abb3203..cf7963d 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -260,6 +260,11 @@ struct ath10k_sta {
#endif
};
+struct ath10k_chanctx {
+ struct list_head list;
+ struct ieee80211_chanctx_conf conf;
+};
+
#define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ)
struct ath10k_vif {
@@ -277,6 +282,7 @@ struct ath10k_vif {
dma_addr_t beacon_paddr;
struct ath10k *ar;
+ struct ath10k_chanctx *arctx;
struct ieee80211_vif *vif;
bool is_started;
@@ -561,6 +567,7 @@ struct ath10k {
struct cfg80211_chan_def chandef;
unsigned long long free_vdev_map;
+ struct ath10k_vif *monitor_arvif;
bool monitor;
int monitor_vdev_id;
bool monitor_started;
@@ -590,6 +597,7 @@ struct ath10k {
/* protects shared structure data */
spinlock_t data_lock;
+ struct list_head arctxs;
struct list_head arvifs;
struct list_head peers;
wait_queue_head_t peer_mapping_wq;
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index c1da44f..b18aa8e 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -773,8 +773,74 @@ static void ath10k_htt_rx_h_rates(struct ath10k *ar,
}
}
+static struct ieee80211_channel *
+ath10k_htt_rx_h_peer_channel(struct ath10k *ar, struct htt_rx_desc *rxd)
+{
+ struct ath10k_peer *peer;
+ struct ath10k_vif *arvif;
+ u16 peer_id;
+
+ lockdep_assert_held(&ar->data_lock);
+
+ if (!rxd)
+ return NULL;
+
+ if (rxd->attention.flags &
+ __cpu_to_le32(RX_ATTENTION_FLAGS_PEER_IDX_INVALID))
+ return NULL;
+
+ if (!(rxd->msdu_end.info0 &
+ __cpu_to_le32(RX_MSDU_END_INFO0_FIRST_MSDU)))
+ return NULL;
+
+ peer_id = MS(__le32_to_cpu(rxd->mpdu_start.info0),
+ RX_MPDU_START_INFO0_PEER_IDX);
+
+ peer = ath10k_peer_find_by_id(ar, peer_id);
+ if (!peer)
+ return NULL;
+
+ arvif = ath10k_get_arvif(ar, peer->vdev_id);
+ if (WARN_ON_ONCE(!arvif->arctx))
+ return NULL;
+
+ if (WARN_ON_ONCE(!arvif->arctx))
+ return NULL;
+
+ return arvif->arctx->conf.def.chan;
+}
+
+static struct ieee80211_channel *
+ath10k_htt_rx_h_vdev_channel(struct ath10k *ar, u32 vdev_id)
+{
+ struct ath10k_vif *arvif;
+
+ lockdep_assert_held(&ar->data_lock);
+
+ list_for_each_entry(arvif, &ar->arvifs, list)
+ if (arvif->vdev_id == vdev_id && arvif->arctx)
+ return arvif->arctx->conf.def.chan;
+
+ return NULL;
+}
+
+static struct ieee80211_channel *
+ath10k_htt_rx_h_any_channel(struct ath10k *ar)
+{
+ struct ath10k_chanctx *arctx;
+
+ lockdep_assert_held(&ar->data_lock);
+
+ list_for_each_entry(arctx, &ar->arctxs, list)
+ return arctx->conf.def.chan;
+
+ return NULL;
+}
+
static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
- struct ieee80211_rx_status *status)
+ struct ieee80211_rx_status *status,
+ struct htt_rx_desc *rxd,
+ u32 vdev_id)
{
struct ieee80211_channel *ch;
@@ -782,6 +848,12 @@ static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
ch = ar->scan_channel;
if (!ch)
ch = ar->rx_channel;
+ if (!ch)
+ ch = ath10k_htt_rx_h_peer_channel(ar, rxd);
+ if (!ch)
+ ch = ath10k_htt_rx_h_vdev_channel(ar, vdev_id);
+ if (!ch)
+ ch = ath10k_htt_rx_h_any_channel(ar);
spin_unlock_bh(&ar->data_lock);
if (!ch)
@@ -819,7 +891,8 @@ static void ath10k_htt_rx_h_mactime(struct ath10k *ar,
static void ath10k_htt_rx_h_ppdu(struct ath10k *ar,
struct sk_buff_head *amsdu,
- struct ieee80211_rx_status *status)
+ struct ieee80211_rx_status *status,
+ u32 vdev_id)
{
struct sk_buff *first;
struct htt_rx_desc *rxd;
@@ -851,7 +924,7 @@ static void ath10k_htt_rx_h_ppdu(struct ath10k *ar,
status->flag |= RX_FLAG_NO_SIGNAL_VAL;
ath10k_htt_rx_h_signal(ar, status, rxd);
- ath10k_htt_rx_h_channel(ar, status);
+ ath10k_htt_rx_h_channel(ar, status, rxd, vdev_id);
ath10k_htt_rx_h_rates(ar, status, rxd);
}
@@ -1522,7 +1595,7 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
break;
}
- ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status);
+ ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status, 0xffff);
ath10k_htt_rx_h_unchain(ar, &amsdu, ret > 0);
ath10k_htt_rx_h_filter(ar, &amsdu, rx_status);
ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status);
@@ -1569,7 +1642,7 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
return;
}
- ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status);
+ ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status, 0xffff);
ath10k_htt_rx_h_filter(ar, &amsdu, rx_status);
ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status);
ath10k_htt_rx_h_deliver(ar, &amsdu, rx_status);
@@ -1796,7 +1869,7 @@ static void ath10k_htt_rx_h_rx_offload(struct ath10k *ar,
status->flag |= RX_FLAG_NO_SIGNAL_VAL;
ath10k_htt_rx_h_rx_offload_prot(status, msdu);
- ath10k_htt_rx_h_channel(ar, status);
+ ath10k_htt_rx_h_channel(ar, status, NULL, rx->vdev_id);
ath10k_process_rx(ar, status, msdu);
}
}
@@ -1869,7 +1942,7 @@ static void ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb)
* better to report something than nothing though. This
* should still give an idea about rx rate to the user.
*/
- ath10k_htt_rx_h_ppdu(ar, &amsdu, status);
+ ath10k_htt_rx_h_ppdu(ar, &amsdu, status, vdev_id);
ath10k_htt_rx_h_filter(ar, &amsdu, status);
ath10k_htt_rx_h_mpdu(ar, &amsdu, status);
ath10k_htt_rx_h_deliver(ar, &amsdu, status);
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 15e47f4..16fddc7 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -751,13 +751,32 @@ static int ath10k_monitor_stop(struct ath10k *ar)
static int ath10k_monitor_recalc(struct ath10k *ar)
{
+ struct ath10k_chanctx *arctx;
bool should_start;
+ int num_ctx;
lockdep_assert_held(&ar->conf_mutex);
- should_start = ar->monitor ||
- ar->filter_flags & FIF_PROMISC_IN_BSS ||
- test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
+ should_start = (ar->monitor ||
+ ar->filter_flags & FIF_PROMISC_IN_BSS ||
+ test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags)) &&
+ !list_empty(&ar->arctxs) &&
+ !ar->monitor_arvif;
+
+ num_ctx = 0;
+ list_for_each_entry(arctx, &ar->arctxs, list)
+ num_ctx++;
+
+ /* FIXME: It remains unclear if CAC on multi-channel will work this
+ * way. Multi-channel DFS must be revised.
+ *
+ * FIXME: Hopefully 2x STA on different channels + monitor interface
+ * will simply setup something like a promiscuous mode.
+ */
+ if (WARN_ON(should_start &&
+ test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags) &&
+ num_ctx > 1))
+ return -EPERM;
ath10k_dbg(ar, ATH10K_DBG_MAC,
"mac monitor recalc started? %d should? %d\n",
@@ -829,6 +848,19 @@ static int ath10k_stop_cac(struct ath10k *ar)
return 0;
}
+static bool ath10k_mac_has_radar_enabled(struct ath10k *ar)
+{
+ struct ath10k_chanctx *arctx;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ list_for_each_entry(arctx, &ar->arctxs, list)
+ if (arctx->conf.radar_enabled)
+ return true;
+
+ return false;
+}
+
static void ath10k_recalc_radar_detection(struct ath10k *ar)
{
int ret;
@@ -837,7 +869,7 @@ static void ath10k_recalc_radar_detection(struct ath10k *ar)
ath10k_stop_cac(ar);
- if (!ar->radar_enabled)
+ if (!ath10k_mac_has_radar_enabled(ar))
return;
if (ar->num_started_vdevs > 0)
@@ -858,12 +890,17 @@ static void ath10k_recalc_radar_detection(struct ath10k *ar)
static int ath10k_vdev_start_restart(struct ath10k_vif *arvif, bool restart)
{
struct ath10k *ar = arvif->ar;
- struct cfg80211_chan_def *chandef = &ar->chandef;
+ struct cfg80211_chan_def *chandef;
struct wmi_vdev_start_request_arg arg = {};
int ret = 0;
lockdep_assert_held(&ar->conf_mutex);
+ if (WARN_ON(!arvif->arctx))
+ return -EINVAL;
+
+ chandef = &arvif->arctx->conf.def;
+
reinit_completion(&ar->vdev_setup_done);
arg.vdev_id = arvif->vdev_id;
@@ -1101,6 +1138,76 @@ static int ath10k_mac_setup_prb_tmpl(struct ath10k_vif *arvif)
return 0;
}
+static int ath10k_mac_vif_fix_hidden_ssid(struct ath10k_vif *arvif)
+{
+ struct ath10k *ar = arvif->ar;
+ int ret;
+
+ /* When originally vdev is started during assign_vif_chanctx() some
+ * information is missing, notably SSID. Firmware revisions with beacon
+ * offloading require the SSID to be provided during vdev (re)start to
+ * handle hidden SSID properly.
+ *
+ * Vdev restart must be done after vdev has been both started and
+ * upped. Otherwise some firmware revisions (at least 10.2) fail to
+ * deliver vdev restart response event causing timeouts during vdev
+ * syncing in ath10k.
+ *
+ * Note: The vdev down/up and template reinstallation could be skipped
+ * since only wmi-tlv firmware are known to have beacon offload and
+ * wmi-tlv doesn't seem to misbehave like 10.2 wrt vdev restart
+ * response delivery. It's probably more robust to keep it as is.
+ */
+ if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
+ return 0;
+
+ if (WARN_ON(!arvif->is_started))
+ return -EINVAL;
+
+ if (WARN_ON(!arvif->is_up))
+ return -EINVAL;
+
+ ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
+ if (ret) {
+ ath10k_warn(ar, "failed to bring down ap vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ return ret;
+ }
+
+ /* Vdev down reset beacon & presp templates. Reinstall them. Otherwise
+ * firmware will crash upon vdev up.
+ */
+
+ ret = ath10k_mac_setup_bcn_tmpl(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to update beacon template: %d\n", ret);
+ return ret;
+ }
+
+ ret = ath10k_mac_setup_prb_tmpl(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to update presp template: %d\n", ret);
+ return ret;
+ }
+
+ ret = ath10k_vdev_restart(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to restart ap vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ return ret;
+ }
+
+ ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
+ arvif->bssid);
+ if (ret) {
+ ath10k_warn(ar, "failed to bring up ap vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
static void ath10k_control_beaconing(struct ath10k_vif *arvif,
struct ieee80211_bss_conf *info)
{
@@ -1110,9 +1217,11 @@ static void ath10k_control_beaconing(struct ath10k_vif *arvif,
lockdep_assert_held(&arvif->ar->conf_mutex);
if (!info->enable_beacon) {
- ath10k_vdev_stop(arvif);
+ ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
+ if (ret)
+ ath10k_warn(ar, "failed to down vdev_id %i: %d\n",
+ arvif->vdev_id, ret);
- arvif->is_started = false;
arvif->is_up = false;
spin_lock_bh(&arvif->ar->data_lock);
@@ -1124,10 +1233,6 @@ static void ath10k_control_beaconing(struct ath10k_vif *arvif,
arvif->tx_seq_no = 0x1000;
- ret = ath10k_vdev_start(arvif);
- if (ret)
- return;
-
arvif->aid = 0;
ether_addr_copy(arvif->bssid, info->bssid);
@@ -1136,13 +1241,18 @@ static void ath10k_control_beaconing(struct ath10k_vif *arvif,
if (ret) {
ath10k_warn(ar, "failed to bring up vdev %d: %i\n",
arvif->vdev_id, ret);
- ath10k_vdev_stop(arvif);
return;
}
- arvif->is_started = true;
arvif->is_up = true;
+ ret = ath10k_mac_vif_fix_hidden_ssid(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to fix hidden ssid for vdev %i, expect trouble: %d\n",
+ arvif->vdev_id, ret);
+ return;
+ }
+
ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d up\n", arvif->vdev_id);
}
@@ -1362,13 +1472,17 @@ static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
struct wmi_peer_assoc_complete_arg *arg)
{
struct ieee80211_bss_conf *info = &vif->bss_conf;
+ struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
struct cfg80211_bss *bss;
const u8 *rsnie = NULL;
const u8 *wpaie = NULL;
lockdep_assert_held(&ar->conf_mutex);
- bss = cfg80211_get_bss(ar->hw->wiphy, ar->hw->conf.chandef.chan,
+ if (WARN_ON(!arvif->arctx))
+ return;
+
+ bss = cfg80211_get_bss(ar->hw->wiphy, arvif->arctx->conf.def.chan,
info->bssid, NULL, 0, 0, 0);
if (bss) {
const struct cfg80211_bss_ies *ies;
@@ -1399,10 +1513,12 @@ static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
}
static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
+ struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct wmi_peer_assoc_complete_arg *arg)
{
struct wmi_rate_set_arg *rateset = &arg->peer_legacy_rates;
+ struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
const struct ieee80211_supported_band *sband;
const struct ieee80211_rate *rates;
u32 ratemask;
@@ -1410,8 +1526,11 @@ static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
lockdep_assert_held(&ar->conf_mutex);
- sband = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band];
- ratemask = sta->supp_rates[ar->hw->conf.chandef.chan->band];
+ if (WARN_ON(!arvif->arctx))
+ return;
+
+ sband = ar->hw->wiphy->bands[arvif->arctx->conf.def.chan->band];
+ ratemask = sta->supp_rates[arvif->arctx->conf.def.chan->band];
rates = sband->bitrates;
rateset->num_rates = 0;
@@ -1664,9 +1783,13 @@ static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
struct ieee80211_sta *sta,
struct wmi_peer_assoc_complete_arg *arg)
{
+ struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
enum wmi_phy_mode phymode = MODE_UNKNOWN;
- switch (ar->hw->conf.chandef.chan->band) {
+ if (WARN_ON(!arvif->arctx))
+ return;
+
+ switch (arvif->arctx->conf.def.chan->band) {
case IEEE80211_BAND_2GHZ:
if (sta->vht_cap.vht_supported) {
if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
@@ -1728,7 +1851,7 @@ static int ath10k_peer_assoc_prepare(struct ath10k *ar,
ath10k_peer_assoc_h_basic(ar, vif, sta, arg);
ath10k_peer_assoc_h_crypto(ar, vif, arg);
- ath10k_peer_assoc_h_rates(ar, sta, arg);
+ ath10k_peer_assoc_h_rates(ar, vif, sta, arg);
ath10k_peer_assoc_h_ht(ar, sta, arg);
ath10k_peer_assoc_h_vht(ar, sta, arg);
ath10k_peer_assoc_h_qos(ar, vif, sta, arg);
@@ -2676,6 +2799,7 @@ void ath10k_halt(struct ath10k *ar)
clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
ar->filter_flags = 0;
ar->monitor = false;
+ ar->monitor_arvif = NULL;
if (ar->monitor_started)
ath10k_monitor_stop(ar);
@@ -2929,7 +3053,7 @@ static const char *chandef_get_width(enum nl80211_chan_width width)
return "?";
}
-static void ath10k_config_chan(struct ath10k *ar)
+static void ath10k_mac_chan_reconfigure(struct ath10k *ar)
{
struct ath10k_vif *arvif;
int ret;
@@ -3062,26 +3186,6 @@ static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
mutex_lock(&ar->conf_mutex);
- if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
- ath10k_dbg(ar, ATH10K_DBG_MAC,
- "mac config channel %dMHz flags 0x%x radar %d\n",
- conf->chandef.chan->center_freq,
- conf->chandef.chan->flags,
- conf->radar_enabled);
-
- spin_lock_bh(&ar->data_lock);
- ar->rx_channel = conf->chandef.chan;
- spin_unlock_bh(&ar->data_lock);
-
- ar->radar_enabled = conf->radar_enabled;
- ath10k_recalc_radar_detection(ar);
-
- if (!cfg80211_chandef_identical(&ar->chandef, &conf->chandef)) {
- ar->chandef = conf->chandef;
- ath10k_config_chan(ar);
- }
- }
-
if (changed & IEEE80211_CONF_CHANGE_PS)
ath10k_config_ps(ar);
@@ -3329,6 +3433,15 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
goto err_peer_delete;
}
+ if (vif->type == NL80211_IFTYPE_MONITOR) {
+ ar->monitor_arvif = arvif;
+ ret = ath10k_monitor_recalc(ar);
+ if (ret) {
+ ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
+ goto err_peer_delete;
+ }
+ }
+
mutex_unlock(&ar->conf_mutex);
return 0;
@@ -3395,6 +3508,13 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
ath10k_peer_cleanup(ar, arvif->vdev_id);
+ if (vif->type == NL80211_IFTYPE_MONITOR) {
+ ar->monitor_arvif = NULL;
+ ret = ath10k_monitor_recalc(ar);
+ if (ret)
+ ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
+ }
+
mutex_unlock(&ar->conf_mutex);
}
@@ -3958,22 +4078,6 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
ath10k_mac_dec_num_stations(arvif);
goto exit;
}
-
- if (vif->type == NL80211_IFTYPE_STATION) {
- WARN_ON(arvif->is_started);
-
- ret = ath10k_vdev_start(arvif);
- if (ret) {
- ath10k_warn(ar, "failed to start vdev %i: %d\n",
- arvif->vdev_id, ret);
- WARN_ON(ath10k_peer_delete(ar, arvif->vdev_id,
- sta->addr));
- ath10k_mac_dec_num_stations(arvif);
- goto exit;
- }
-
- arvif->is_started = true;
- }
} else if ((old_state == IEEE80211_STA_NONE &&
new_state == IEEE80211_STA_NOTEXIST)) {
/*
@@ -3982,18 +4086,6 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
ath10k_dbg(ar, ATH10K_DBG_MAC,
"mac vdev %d peer delete %pM (sta gone)\n",
arvif->vdev_id, sta->addr);
-
- if (vif->type == NL80211_IFTYPE_STATION) {
- WARN_ON(!arvif->is_started);
-
- ret = ath10k_vdev_stop(arvif);
- if (ret)
- ath10k_warn(ar, "failed to stop vdev %i: %d\n",
- arvif->vdev_id, ret);
-
- arvif->is_started = false;
- }
-
ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
if (ret)
ath10k_warn(ar, "failed to delete peer %pM for vdev %d: %i\n",
@@ -4812,14 +4904,19 @@ static int ath10k_set_bitrate_mask(struct ieee80211_hw *hw,
{
struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
struct ath10k *ar = arvif->ar;
- enum ieee80211_band band = ar->hw->conf.chandef.chan->band;
+ enum ieee80211_band band;
u8 fixed_rate = WMI_FIXED_RATE_NONE;
u8 fixed_nss = ar->num_rf_chains;
u8 force_sgi;
+ if (!arvif->arctx)
+ return -EPERM;
+
if (ar->cfg_tx_chainmask)
fixed_nss = get_nss_from_chainmask(ar->cfg_tx_chainmask);
+ band = arvif->arctx->conf.def.chan->band;
+
force_sgi = mask->control[band].gi;
if (force_sgi == NL80211_TXRATE_FORCE_LGI)
return -EINVAL;
@@ -4956,6 +5053,316 @@ static int ath10k_ampdu_action(struct ieee80211_hw *hw,
return -EINVAL;
}
+static void
+ath10k_mac_update_rx_channel(struct ath10k *ar)
+{
+ struct ath10k_chanctx *arctx;
+ struct cfg80211_chan_def *def = NULL;
+ int num = 0;
+
+ /* Both locks are required because ar->rx_channel is modified. This
+ * allows readers to hold either lock.
+ */
+ lockdep_assert_held(&ar->conf_mutex);
+ lockdep_assert_held(&ar->data_lock);
+
+ /* FIXME: Sort of an optimization and a workaround. Peers and vifs are
+ * on a linked list now. Doing a lookup peer -> vif -> chanctx for each
+ * ppdu on Rx may reduce performance on low-end systems. It should be
+ * possible to make tables/hashmaps to speed the lookup up (be vary of
+ * cpu data cache lines though regarding sizes) but to keep the initial
+ * implementation simple and less intrusive fallback to the slow lookup
+ * only for multi-channel cases. Single-channel cases will remain to
+ * use the old channel derival and thus performance should not be
+ * affected much.
+ */
+ list_for_each_entry(arctx, &ar->arctxs, list) {
+ def = &arctx->conf.def;
+ ++num;
+ }
+
+ if (num == 1) {
+ ar->rx_channel = def->chan;
+ ar->chandef = *def;
+ } else {
+ ar->rx_channel = NULL;
+ }
+}
+
+static void
+ath10k_mac_chan_ctx_init(struct ath10k *ar,
+ struct ath10k_chanctx *arctx,
+ struct ieee80211_chanctx_conf *conf)
+{
+ lockdep_assert_held(&ar->conf_mutex);
+ lockdep_assert_held(&ar->data_lock);
+
+ memset(arctx, 0, sizeof(*arctx));
+
+ INIT_LIST_HEAD(&arctx->list);
+ list_add(&arctx->list, &ar->arctxs);
+
+ arctx->conf = *conf;
+}
+
+static int
+ath10k_mac_op_add_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_chanctx_conf *ctx)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx add freq %hu width %d ptr %p\n",
+ ctx->def.chan->center_freq, ctx->def.width, ctx);
+
+ mutex_lock(&ar->conf_mutex);
+
+ spin_lock_bh(&ar->data_lock);
+ ath10k_mac_chan_ctx_init(ar, arctx, ctx);
+ ath10k_mac_update_rx_channel(ar);
+ spin_unlock_bh(&ar->data_lock);
+
+ ath10k_recalc_radar_detection(ar);
+ ath10k_monitor_recalc(ar);
+
+ mutex_unlock(&ar->conf_mutex);
+
+ return 0;
+}
+
+static void
+ath10k_mac_op_remove_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_chanctx_conf *ctx)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+ struct ath10k_vif *arvif;
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx remove freq %hu width %d ptr %p\n",
+ ctx->def.chan->center_freq, ctx->def.width, ctx);
+
+ mutex_lock(&ar->conf_mutex);
+
+ spin_lock_bh(&ar->data_lock);
+ list_del(&arctx->list);
+ list_for_each_entry(arvif, &ar->arvifs, list)
+ WARN(arvif->arctx == arctx,
+ "trying to remove chanctx which is bound to vdev_id %i\n",
+ arvif->vdev_id);
+ ath10k_mac_update_rx_channel(ar);
+ spin_unlock_bh(&ar->data_lock);
+
+ ath10k_recalc_radar_detection(ar);
+ ath10k_monitor_recalc(ar);
+
+ mutex_unlock(&ar->conf_mutex);
+}
+
+static void
+ath10k_mac_op_change_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_chanctx_conf *ctx,
+ u32 changed)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx change freq %hu->%hu width %d->%d ptr %p changed %x\n",
+ arctx->conf.def.chan->center_freq,
+ ctx->def.chan->center_freq,
+ arctx->conf.def.width, ctx->def.width,
+ ctx, changed);
+
+ /* This shouldn't really happen because channel switching should use
+ * switch_vif_chanctx().
+ */
+ if (WARN_ON(changed & IEEE80211_CHANCTX_CHANGE_CHANNEL))
+ goto unlock;
+
+ spin_lock_bh(&ar->data_lock);
+ arctx->conf = *ctx;
+ spin_unlock_bh(&ar->data_lock);
+
+ ath10k_recalc_radar_detection(ar);
+
+ /* FIXME: How to configure Rx chains properly? */
+
+ /* No other actions are actually necessary. Firmware maintains channel
+ * definitions per vdev internally and there's no host-side channel
+ * context abstraction to configure, e.g. channel width.
+ */
+
+unlock:
+ mutex_unlock(&ar->conf_mutex);
+}
+
+static int
+ath10k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_chanctx_conf *ctx)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+ struct ath10k_vif *arvif = (void *)vif->drv_priv;
+ int ret;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx assign ptr %p vdev_id %i\n",
+ ctx, arvif->vdev_id);
+
+ if (WARN_ON(arvif->is_started)) {
+ mutex_unlock(&ar->conf_mutex);
+ return -EBUSY;
+ }
+
+ spin_lock_bh(&ar->data_lock);
+ if (WARN_ON(arvif->arctx)) {
+ spin_unlock_bh(&ar->data_lock);
+ mutex_unlock(&ar->conf_mutex);
+ return -EALREADY;
+ }
+ arvif->arctx = arctx;
+ spin_unlock_bh(&ar->data_lock);
+
+ ret = ath10k_vdev_start(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to start vdev %i addr %pM on freq %d: %d\n",
+ arvif->vdev_id, vif->addr,
+ arctx->conf.def.chan->center_freq, ret);
+ goto err;
+ }
+
+ arvif->is_started = true;
+
+ if (vif->type == NL80211_IFTYPE_MONITOR) {
+ ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, 0, vif->addr);
+ if (ret) {
+ ath10k_warn(ar, "failed to up monitor vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ goto err_stop;
+ }
+
+ arvif->is_up = true;
+ }
+
+ mutex_unlock(&ar->conf_mutex);
+ return 0;
+
+err_stop:
+ ath10k_vdev_stop(arvif);
+ arvif->is_started = false;
+
+err:
+ spin_lock_bh(&ar->data_lock);
+ arvif->arctx = NULL;
+ spin_unlock_bh(&ar->data_lock);
+
+ mutex_unlock(&ar->conf_mutex);
+ return ret;
+}
+
+static void
+ath10k_mac_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_chanctx_conf *ctx)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+ struct ath10k_vif *arvif = (void *)vif->drv_priv;
+ int ret;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx unassign ptr %p vdev_id %i\n",
+ ctx, arvif->vdev_id);
+
+ spin_lock_bh(&ar->data_lock);
+ WARN_ON(!arvif->arctx);
+ WARN_ON(arvif->arctx != arctx);
+ arvif->arctx = NULL;
+ spin_unlock_bh(&ar->data_lock);
+
+ WARN_ON(!arvif->is_started);
+
+ if (vif->type == NL80211_IFTYPE_MONITOR) {
+ WARN_ON(!arvif->is_up);
+
+ ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
+ if (ret)
+ ath10k_warn(ar, "failed to down monitor vdev %i: %d\n",
+ arvif->vdev_id, ret);
+
+ arvif->is_up = false;
+ }
+
+ ret = ath10k_vdev_stop(arvif);
+ if (ret)
+ ath10k_warn(ar, "failed to stop vdev %i: %d\n",
+ arvif->vdev_id, ret);
+
+ arvif->is_started = false;
+
+ mutex_unlock(&ar->conf_mutex);
+}
+
+static int
+ath10k_mac_op_switch_vif_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_vif_chanctx_switch *vifs,
+ int n_vifs,
+ enum ieee80211_chanctx_switch_mode mode)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_vif *arvif;
+ struct ath10k_chanctx *arctx_new, *arctx_old;
+ int i;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx switch n_vifs %d mode %d\n",
+ n_vifs, mode);
+
+ spin_lock_bh(&ar->data_lock);
+ for (i = 0; i < n_vifs; i++) {
+ arvif = ath10k_vif_to_arvif(vifs[i].vif);
+ arctx_new = (void *)vifs[i].new_ctx->drv_priv;
+ arctx_old = (void *)vifs[i].old_ctx->drv_priv;
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx switch vdev_id %i freq %hu->%hu width %d->%d ptr %p->%p\n",
+ arvif->vdev_id,
+ vifs[i].old_ctx->def.chan->center_freq,
+ vifs[i].new_ctx->def.chan->center_freq,
+ vifs[i].old_ctx->def.width,
+ vifs[i].new_ctx->def.width,
+ arctx_old, arctx_new);
+
+ if (mode == CHANCTX_SWMODE_SWAP_CONTEXTS) {
+ list_del(&arctx_old->list);
+ ath10k_mac_chan_ctx_init(ar, arctx_new,
+ vifs[i].new_ctx);
+ }
+
+ arvif->arctx = arctx_new;
+ arvif->arctx->conf = *vifs[i].new_ctx;
+ }
+ ath10k_mac_update_rx_channel(ar);
+ spin_unlock_bh(&ar->data_lock);
+
+ /* FIXME: Reconfigure only affected vifs */
+ ath10k_mac_chan_reconfigure(ar);
+
+ mutex_unlock(&ar->conf_mutex);
+ return 0;
+}
+
static const struct ieee80211_ops ath10k_ops = {
.tx = ath10k_tx,
.start = ath10k_start,
@@ -4986,6 +5393,12 @@ static const struct ieee80211_ops ath10k_ops = {
.get_et_sset_count = ath10k_debug_get_et_sset_count,
.get_et_stats = ath10k_debug_get_et_stats,
.get_et_strings = ath10k_debug_get_et_strings,
+ .add_chanctx = ath10k_mac_op_add_chanctx,
+ .remove_chanctx = ath10k_mac_op_remove_chanctx,
+ .change_chanctx = ath10k_mac_op_change_chanctx,
+ .assign_vif_chanctx = ath10k_mac_op_assign_vif_chanctx,
+ .unassign_vif_chanctx = ath10k_mac_op_unassign_vif_chanctx,
+ .switch_vif_chanctx = ath10k_mac_op_switch_vif_chanctx,
CFG80211_TESTMODE_CMD(ath10k_tm_cmd)
@@ -5357,6 +5770,7 @@ int ath10k_mac_register(struct ath10k *ar)
IEEE80211_HW_REPORTS_TX_ACK_STATUS |
IEEE80211_HW_HAS_RATE_CONTROL |
IEEE80211_HW_AP_LINK_PS |
+ IEEE80211_HW_WANT_MONITOR_VIF |
IEEE80211_HW_SPECTRUM_MGMT;
ar->hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS;
@@ -5374,6 +5788,7 @@ int ath10k_mac_register(struct ath10k *ar)
ar->hw->vif_data_size = sizeof(struct ath10k_vif);
ar->hw->sta_data_size = sizeof(struct ath10k_sta);
+ ar->hw->chanctx_data_size = sizeof(struct ath10k_chanctx);
ar->hw->max_listen_interval = ATH10K_MAX_HW_LISTEN_INTERVAL;
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 97ee2e9..0b49ec4 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -2504,6 +2504,7 @@ static void ath10k_dfs_radar_report(struct ath10k *ar,
u64 tsf)
{
u32 reg0, reg1, tsf32l;
+ struct ieee80211_channel *ch;
struct pulse_event pe;
u64 tsf64;
u8 rssi, width;
@@ -2532,6 +2533,15 @@ static void ath10k_dfs_radar_report(struct ath10k *ar,
if (!ar->dfs_detector)
return;
+ spin_lock_bh(&ar->data_lock);
+ ch = ar->rx_channel;
+ spin_unlock_bh(&ar->data_lock);
+
+ if (!ch) {
+ ath10k_warn(ar, "failed to derive channel for radar pulse, treating as radar\n");
+ goto radar_detected;
+ }
+
/* report event to DFS pattern detector */
tsf32l = __le32_to_cpu(phyerr->tsf_timestamp);
tsf64 = tsf & (~0xFFFFFFFFULL);
@@ -2547,7 +2557,7 @@ static void ath10k_dfs_radar_report(struct ath10k *ar,
rssi = 0;
pe.ts = tsf64;
- pe.freq = ar->hw->conf.chandef.chan->center_freq;
+ pe.freq = ch->center_freq;
pe.width = width;
pe.rssi = rssi;
@@ -2563,6 +2573,7 @@ static void ath10k_dfs_radar_report(struct ath10k *ar,
return;
}
+radar_detected:
ath10k_dbg(ar, ATH10K_DBG_REGULATORY, "dfs radar detected\n");
ATH10K_DFS_STAT_INC(ar, radar_detected);
--
1.8.5.3
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH 3/7] ath10k: implement adaptive qcs command
2015-01-30 8:41 ` Michal Kazior
@ 2015-01-30 8:41 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 8:41 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
This command will be used to configure
multi-channel scheduler in firmware.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/wmi-ops.h | 16 ++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 30 ++++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi-tlv.h | 4 ++++
drivers/net/wireless/ath/ath10k/wmi.c | 3 +++
drivers/net/wireless/ath/ath10k/wmi.h | 1 +
5 files changed, 54 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/wmi-ops.h b/drivers/net/wireless/ath/ath10k/wmi-ops.h
index 058f88b..cf9d34f 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-ops.h
+++ b/drivers/net/wireless/ath/ath10k/wmi-ops.h
@@ -145,6 +145,7 @@ struct wmi_ops {
u32 num_ac);
struct sk_buff *(*gen_sta_keepalive)(struct ath10k *ar,
const struct wmi_sta_keepalive_arg *arg);
+ struct sk_buff *(*gen_adaptive_qcs)(struct ath10k *ar, bool enable);
};
int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb, u32 cmd_id);
@@ -1054,4 +1055,19 @@ ath10k_wmi_sta_keepalive(struct ath10k *ar,
return ath10k_wmi_cmd_send(ar, skb, cmd_id);
}
+static inline int
+ath10k_wmi_adaptive_qcs(struct ath10k *ar, bool enable)
+{
+ struct sk_buff *skb;
+
+ if (!ar->wmi.ops->gen_adaptive_qcs)
+ return -EOPNOTSUPP;
+
+ skb = ar->wmi.ops->gen_adaptive_qcs(ar, enable);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
+
+ return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->adaptive_qcs_cmdid);
+}
+
#endif
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index ccafb69..0e36b34 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -2381,6 +2381,34 @@ ath10k_wmi_tlv_op_gen_p2p_go_bcn_ie(struct ath10k *ar, u32 vdev_id,
return skb;
}
+static struct sk_buff *
+ath10k_wmi_tlv_op_gen_adaptive_qcs(struct ath10k *ar, bool enable)
+{
+ struct wmi_tlv_adaptive_qcs *cmd;
+ struct wmi_tlv *tlv;
+ struct sk_buff *skb;
+ void *ptr;
+ size_t len;
+
+ len = sizeof(*tlv) + sizeof(*cmd);
+ skb = ath10k_wmi_alloc_skb(ar, len);
+ if (!skb)
+ return ERR_PTR(-ENOMEM);
+
+ ptr = (void *)skb->data;
+ tlv = ptr;
+ tlv->tag = __cpu_to_le16(WMI_TLV_TAG_STRUCT_RESMGR_ADAPTIVE_OCS_CMD);
+ tlv->len = __cpu_to_le16(sizeof(*cmd));
+ cmd = (void *)tlv->value;
+ cmd->enable = __cpu_to_le32(enable ? 1 : 0);
+
+ ptr += sizeof(*tlv);
+ ptr += sizeof(*cmd);
+
+ ath10k_dbg(ar, ATH10K_DBG_WMI, "wmi tlv adaptive qcs %d\n", enable);
+ return skb;
+}
+
/****************/
/* TLV mappings */
/****************/
@@ -2505,6 +2533,7 @@ static struct wmi_cmd_map wmi_tlv_cmd_map = {
.gpio_output_cmdid = WMI_TLV_GPIO_OUTPUT_CMDID,
.pdev_get_temperature_cmdid = WMI_TLV_CMD_UNSUPPORTED,
.vdev_set_wmm_params_cmdid = WMI_TLV_VDEV_SET_WMM_PARAMS_CMDID,
+ .adaptive_qcs_cmdid = WMI_TLV_RESMGR_ADAPTIVE_OCS_CMDID,
};
static struct wmi_pdev_param_map wmi_tlv_pdev_param_map = {
@@ -2677,6 +2706,7 @@ static const struct wmi_ops wmi_tlv_ops = {
.gen_p2p_go_bcn_ie = ath10k_wmi_tlv_op_gen_p2p_go_bcn_ie,
.gen_vdev_sta_uapsd = ath10k_wmi_tlv_op_gen_vdev_sta_uapsd,
.gen_sta_keepalive = ath10k_wmi_tlv_op_gen_sta_keepalive,
+ .gen_adaptive_qcs = ath10k_wmi_tlv_op_gen_adaptive_qcs,
};
/************/
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.h b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
index de68fe7..a05952a 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.h
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
@@ -1439,6 +1439,10 @@ struct wmi_tlv_sta_keepalive_cmd {
__le32 interval; /* in seconds */
} __packed;
+struct wmi_tlv_adaptive_qcs {
+ __le32 enable;
+} __packed;
+
void ath10k_wmi_tlv_attach(struct ath10k *ar);
#endif
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 0b49ec4..8966848 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -5224,6 +5224,7 @@ static const struct wmi_ops wmi_ops = {
/* .gen_bcn_tmpl not implemented */
/* .gen_prb_tmpl not implemented */
/* .gen_p2p_go_bcn_ie not implemented */
+ /* .gen_adaptive_qcs not implemented */
};
static const struct wmi_ops wmi_10_1_ops = {
@@ -5286,6 +5287,7 @@ static const struct wmi_ops wmi_10_1_ops = {
/* .gen_bcn_tmpl not implemented */
/* .gen_prb_tmpl not implemented */
/* .gen_p2p_go_bcn_ie not implemented */
+ /* .gen_adaptive_qcs not implemented */
};
static const struct wmi_ops wmi_10_2_ops = {
@@ -5408,6 +5410,7 @@ static const struct wmi_ops wmi_10_2_4_ops = {
/* .gen_bcn_tmpl not implemented */
/* .gen_prb_tmpl not implemented */
/* .gen_p2p_go_bcn_ie not implemented */
+ /* .gen_adaptive_qcs not implemented */
};
int ath10k_wmi_attach(struct ath10k *ar)
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 20ce360..69c7cf4 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -552,6 +552,7 @@ struct wmi_cmd_map {
u32 gpio_output_cmdid;
u32 pdev_get_temperature_cmdid;
u32 vdev_set_wmm_params_cmdid;
+ u32 adaptive_qcs_cmdid;
};
/*
--
1.8.5.3
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH 3/7] ath10k: implement adaptive qcs command
@ 2015-01-30 8:41 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 8:41 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
This command will be used to configure
multi-channel scheduler in firmware.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/wmi-ops.h | 16 ++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 30 ++++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi-tlv.h | 4 ++++
drivers/net/wireless/ath/ath10k/wmi.c | 3 +++
drivers/net/wireless/ath/ath10k/wmi.h | 1 +
5 files changed, 54 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/wmi-ops.h b/drivers/net/wireless/ath/ath10k/wmi-ops.h
index 058f88b..cf9d34f 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-ops.h
+++ b/drivers/net/wireless/ath/ath10k/wmi-ops.h
@@ -145,6 +145,7 @@ struct wmi_ops {
u32 num_ac);
struct sk_buff *(*gen_sta_keepalive)(struct ath10k *ar,
const struct wmi_sta_keepalive_arg *arg);
+ struct sk_buff *(*gen_adaptive_qcs)(struct ath10k *ar, bool enable);
};
int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb, u32 cmd_id);
@@ -1054,4 +1055,19 @@ ath10k_wmi_sta_keepalive(struct ath10k *ar,
return ath10k_wmi_cmd_send(ar, skb, cmd_id);
}
+static inline int
+ath10k_wmi_adaptive_qcs(struct ath10k *ar, bool enable)
+{
+ struct sk_buff *skb;
+
+ if (!ar->wmi.ops->gen_adaptive_qcs)
+ return -EOPNOTSUPP;
+
+ skb = ar->wmi.ops->gen_adaptive_qcs(ar, enable);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
+
+ return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->adaptive_qcs_cmdid);
+}
+
#endif
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index ccafb69..0e36b34 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -2381,6 +2381,34 @@ ath10k_wmi_tlv_op_gen_p2p_go_bcn_ie(struct ath10k *ar, u32 vdev_id,
return skb;
}
+static struct sk_buff *
+ath10k_wmi_tlv_op_gen_adaptive_qcs(struct ath10k *ar, bool enable)
+{
+ struct wmi_tlv_adaptive_qcs *cmd;
+ struct wmi_tlv *tlv;
+ struct sk_buff *skb;
+ void *ptr;
+ size_t len;
+
+ len = sizeof(*tlv) + sizeof(*cmd);
+ skb = ath10k_wmi_alloc_skb(ar, len);
+ if (!skb)
+ return ERR_PTR(-ENOMEM);
+
+ ptr = (void *)skb->data;
+ tlv = ptr;
+ tlv->tag = __cpu_to_le16(WMI_TLV_TAG_STRUCT_RESMGR_ADAPTIVE_OCS_CMD);
+ tlv->len = __cpu_to_le16(sizeof(*cmd));
+ cmd = (void *)tlv->value;
+ cmd->enable = __cpu_to_le32(enable ? 1 : 0);
+
+ ptr += sizeof(*tlv);
+ ptr += sizeof(*cmd);
+
+ ath10k_dbg(ar, ATH10K_DBG_WMI, "wmi tlv adaptive qcs %d\n", enable);
+ return skb;
+}
+
/****************/
/* TLV mappings */
/****************/
@@ -2505,6 +2533,7 @@ static struct wmi_cmd_map wmi_tlv_cmd_map = {
.gpio_output_cmdid = WMI_TLV_GPIO_OUTPUT_CMDID,
.pdev_get_temperature_cmdid = WMI_TLV_CMD_UNSUPPORTED,
.vdev_set_wmm_params_cmdid = WMI_TLV_VDEV_SET_WMM_PARAMS_CMDID,
+ .adaptive_qcs_cmdid = WMI_TLV_RESMGR_ADAPTIVE_OCS_CMDID,
};
static struct wmi_pdev_param_map wmi_tlv_pdev_param_map = {
@@ -2677,6 +2706,7 @@ static const struct wmi_ops wmi_tlv_ops = {
.gen_p2p_go_bcn_ie = ath10k_wmi_tlv_op_gen_p2p_go_bcn_ie,
.gen_vdev_sta_uapsd = ath10k_wmi_tlv_op_gen_vdev_sta_uapsd,
.gen_sta_keepalive = ath10k_wmi_tlv_op_gen_sta_keepalive,
+ .gen_adaptive_qcs = ath10k_wmi_tlv_op_gen_adaptive_qcs,
};
/************/
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.h b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
index de68fe7..a05952a 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.h
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
@@ -1439,6 +1439,10 @@ struct wmi_tlv_sta_keepalive_cmd {
__le32 interval; /* in seconds */
} __packed;
+struct wmi_tlv_adaptive_qcs {
+ __le32 enable;
+} __packed;
+
void ath10k_wmi_tlv_attach(struct ath10k *ar);
#endif
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 0b49ec4..8966848 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -5224,6 +5224,7 @@ static const struct wmi_ops wmi_ops = {
/* .gen_bcn_tmpl not implemented */
/* .gen_prb_tmpl not implemented */
/* .gen_p2p_go_bcn_ie not implemented */
+ /* .gen_adaptive_qcs not implemented */
};
static const struct wmi_ops wmi_10_1_ops = {
@@ -5286,6 +5287,7 @@ static const struct wmi_ops wmi_10_1_ops = {
/* .gen_bcn_tmpl not implemented */
/* .gen_prb_tmpl not implemented */
/* .gen_p2p_go_bcn_ie not implemented */
+ /* .gen_adaptive_qcs not implemented */
};
static const struct wmi_ops wmi_10_2_ops = {
@@ -5408,6 +5410,7 @@ static const struct wmi_ops wmi_10_2_4_ops = {
/* .gen_bcn_tmpl not implemented */
/* .gen_prb_tmpl not implemented */
/* .gen_p2p_go_bcn_ie not implemented */
+ /* .gen_adaptive_qcs not implemented */
};
int ath10k_wmi_attach(struct ath10k *ar)
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 20ce360..69c7cf4 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -552,6 +552,7 @@ struct wmi_cmd_map {
u32 gpio_output_cmdid;
u32 pdev_get_temperature_cmdid;
u32 vdev_set_wmm_params_cmdid;
+ u32 adaptive_qcs_cmdid;
};
/*
--
1.8.5.3
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH 4/7] ath10k: protect ar->arvifs linking with data_lock
2015-01-30 8:41 ` Michal Kazior
@ 2015-01-30 8:41 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 8:41 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
This will make it possible to iterate over
interface list while in an atomic context,
i.e. tasklet.
Caller should still be careful with accessing
arvif structures though.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/mac.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 16fddc7..721b2ce 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3325,7 +3325,10 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
}
ar->free_vdev_map &= ~(1LL << arvif->vdev_id);
+
+ spin_lock_bh(&ar->data_lock);
list_add(&arvif->list, &ar->arvifs);
+ spin_unlock_bh(&ar->data_lock);
/* It makes no sense to have firmware do keepalives. mac80211 already
* takes care of this with idle connection polling.
@@ -3452,7 +3455,9 @@ err_peer_delete:
err_vdev_delete:
ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
ar->free_vdev_map |= 1LL << arvif->vdev_id;
+ spin_lock_bh(&ar->data_lock);
list_del(&arvif->list);
+ spin_unlock_bh(&ar->data_lock);
err:
if (arvif->beacon_buf) {
@@ -3487,7 +3492,10 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
arvif->vdev_id, ret);
ar->free_vdev_map |= 1LL << arvif->vdev_id;
+
+ spin_lock_bh(&ar->data_lock);
list_del(&arvif->list);
+ spin_unlock_bh(&ar->data_lock);
if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, vif->addr);
--
1.8.5.3
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH 4/7] ath10k: protect ar->arvifs linking with data_lock
@ 2015-01-30 8:41 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 8:41 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
This will make it possible to iterate over
interface list while in an atomic context,
i.e. tasklet.
Caller should still be careful with accessing
arvif structures though.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/mac.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 16fddc7..721b2ce 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3325,7 +3325,10 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
}
ar->free_vdev_map &= ~(1LL << arvif->vdev_id);
+
+ spin_lock_bh(&ar->data_lock);
list_add(&arvif->list, &ar->arvifs);
+ spin_unlock_bh(&ar->data_lock);
/* It makes no sense to have firmware do keepalives. mac80211 already
* takes care of this with idle connection polling.
@@ -3452,7 +3455,9 @@ err_peer_delete:
err_vdev_delete:
ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
ar->free_vdev_map |= 1LL << arvif->vdev_id;
+ spin_lock_bh(&ar->data_lock);
list_del(&arvif->list);
+ spin_unlock_bh(&ar->data_lock);
err:
if (arvif->beacon_buf) {
@@ -3487,7 +3492,10 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
arvif->vdev_id, ret);
ar->free_vdev_map |= 1LL << arvif->vdev_id;
+
+ spin_lock_bh(&ar->data_lock);
list_del(&arvif->list);
+ spin_unlock_bh(&ar->data_lock);
if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, vif->addr);
--
1.8.5.3
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH 5/7] ath10k: rework tx queue locking
2015-01-30 8:41 ` Michal Kazior
@ 2015-01-30 8:41 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 8:41 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
Tx queue locking was very simple until now.
Multi-channel support will require a more flexible
and fine grained control.
This introduces a per-hw and per-vif (each with a
bitmask of reasons) tx queue locking.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/core.h | 8 +++++
drivers/net/wireless/ath/ath10k/htt_tx.c | 11 ++++--
drivers/net/wireless/ath/ath10k/mac.c | 20 ++++++++++-
drivers/net/wireless/ath/ath10k/mac.h | 57 ++++++++++++++++++++++++++++++++
4 files changed, 92 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index cf7963d..68df646 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -280,6 +280,7 @@ struct ath10k_vif {
bool beacon_sent;
void *beacon_buf;
dma_addr_t beacon_paddr;
+ unsigned long tx_paused; /* arbitrary values defined by target */
struct ath10k *ar;
struct ath10k_chanctx *arctx;
@@ -472,6 +473,11 @@ static inline const char *ath10k_scan_state_str(enum ath10k_scan_state state)
return "unknown";
}
+enum ath10k_tx_pause_reason {
+ ATH10K_TX_PAUSE_Q_FULL,
+ ATH10K_TX_PAUSE_MAX,
+};
+
struct ath10k {
struct ath_common ath_common;
struct ieee80211_hw *hw;
@@ -631,6 +637,8 @@ struct ath10k {
struct dfs_pattern_detector *dfs_detector;
+ unsigned long tx_paused; /* see ATH10K_TX_PAUSE_ */
+
#ifdef CONFIG_ATH10K_DEBUGFS
struct ath10k_debug debug;
#endif
diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index c1961e7..fcc52c1 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -24,9 +24,14 @@
void __ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
{
+ struct ath10k *ar = htt->ar;
+
htt->num_pending_tx--;
- if (htt->num_pending_tx == htt->max_num_pending_tx - 1)
- ieee80211_wake_queues(htt->ar->hw);
+ if (htt->num_pending_tx == htt->max_num_pending_tx - 1) {
+ spin_lock_bh(&ar->data_lock);
+ ath10k_mac_tx_unlock(htt->ar, ATH10K_TX_PAUSE_Q_FULL);
+ spin_unlock_bh(&ar->data_lock);
+ }
}
static void ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
@@ -49,7 +54,7 @@ static int ath10k_htt_tx_inc_pending(struct ath10k_htt *htt)
htt->num_pending_tx++;
if (htt->num_pending_tx == htt->max_num_pending_tx)
- ieee80211_stop_queues(htt->ar->hw);
+ ath10k_mac_tx_lock(htt->ar, ATH10K_TX_PAUSE_Q_FULL);
exit:
spin_unlock_bh(&htt->tx_lock);
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 721b2ce..f84ffc9 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2805,6 +2805,7 @@ void ath10k_halt(struct ath10k *ar)
ath10k_monitor_stop(ar);
ar->monitor_started = false;
+ ar->tx_paused = 0;
ath10k_scan_finish(ar);
ath10k_peer_cleanup_all(ar);
@@ -3227,6 +3228,7 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
int ret = 0;
u32 value;
int bit;
+ int i;
u32 vdev_param;
vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
@@ -3282,6 +3284,15 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
break;
}
+ /* Using vdev_id as queue number will make it very easy to do per-vif
+ * tx queue locking. This shouldn't wrap due to interface combinations
+ * but do a modulo for correctness sake and prevent using offchannel tx
+ * queues for regular vif tx.
+ */
+ vif->cab_queue = arvif->vdev_id % (IEEE80211_MAX_QUEUES - 1);
+ for (i = 0; i < ARRAY_SIZE(vif->hw_queue); i++)
+ vif->hw_queue[i] = arvif->vdev_id % (IEEE80211_MAX_QUEUES - 1);
+
/* Some firmware revisions don't wait for beacon tx completion before
* sending another SWBA event. This could lead to hardware using old
* (freed) beacon data in some cases, e.g. tx credit starvation
@@ -5779,6 +5790,7 @@ int ath10k_mac_register(struct ath10k *ar)
IEEE80211_HW_HAS_RATE_CONTROL |
IEEE80211_HW_AP_LINK_PS |
IEEE80211_HW_WANT_MONITOR_VIF |
+ IEEE80211_HW_QUEUE_CONTROL |
IEEE80211_HW_SPECTRUM_MGMT;
ar->hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS;
@@ -5824,7 +5836,13 @@ int ath10k_mac_register(struct ath10k *ar)
* on LL hardware queues are managed entirely by the FW
* so we only advertise to mac we can do the queues thing
*/
- ar->hw->queues = 4;
+ ar->hw->queues = IEEE80211_MAX_QUEUES;
+
+ /* vdev_ids are used as hw queue numbers. Make sure offchan tx queue is
+ * something that vdev_ids can't reach so that we don't stop the queue
+ * accidentally.
+ */
+ ar->hw->offchannel_tx_hw_queue = IEEE80211_MAX_QUEUES - 1;
switch (ar->wmi.op_version) {
case ATH10K_FW_WMI_OP_VERSION_MAIN:
diff --git a/drivers/net/wireless/ath/ath10k/mac.h b/drivers/net/wireless/ath/ath10k/mac.h
index 6829611..76776f6 100644
--- a/drivers/net/wireless/ath/ath10k/mac.h
+++ b/drivers/net/wireless/ath/ath10k/mac.h
@@ -69,4 +69,61 @@ static inline void ath10k_tx_h_seq_no(struct ieee80211_vif *vif,
}
}
+static inline void ath10k_mac_tx_lock(struct ath10k *ar, int reason)
+{
+ lockdep_assert_held(&ar->htt.tx_lock);
+
+ WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
+ ar->tx_paused |= BIT(reason);
+ ieee80211_stop_queues(ar->hw);
+}
+
+static inline void ath10k_mac_tx_unlock(struct ath10k *ar, int reason)
+{
+ struct ath10k_vif *arvif;
+
+ lockdep_assert_held(&ar->htt.tx_lock);
+ lockdep_assert_held(&ar->data_lock);
+
+ WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
+ ar->tx_paused &= ~BIT(reason);
+
+ if (ar->tx_paused)
+ return;
+
+ list_for_each_entry(arvif, &ar->arvifs, list)
+ if (!arvif->tx_paused)
+ ieee80211_wake_queue(ar->hw, arvif->vdev_id);
+}
+
+static inline void ath10k_mac_vif_tx_lock(struct ath10k_vif *arvif, int reason)
+{
+ struct ath10k *ar = arvif->ar;
+
+ lockdep_assert_held(&ar->htt.tx_lock);
+
+ WARN_ON(reason >= BITS_PER_LONG);
+ arvif->tx_paused |= BIT(reason);
+ ieee80211_stop_queue(ar->hw, arvif->vdev_id);
+}
+
+static inline void ath10k_mac_vif_tx_unlock(struct ath10k_vif *arvif,
+ int reason)
+{
+ struct ath10k *ar = arvif->ar;
+
+ lockdep_assert_held(&ar->htt.tx_lock);
+
+ WARN_ON(reason >= BITS_PER_LONG);
+ arvif->tx_paused &= ~BIT(reason);
+
+ if (ar->tx_paused)
+ return;
+
+ if (arvif->tx_paused)
+ return;
+
+ ieee80211_wake_queue(ar->hw, arvif->vdev_id);
+}
+
#endif /* _MAC_H_ */
--
1.8.5.3
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH 5/7] ath10k: rework tx queue locking
@ 2015-01-30 8:41 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 8:41 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
Tx queue locking was very simple until now.
Multi-channel support will require a more flexible
and fine grained control.
This introduces a per-hw and per-vif (each with a
bitmask of reasons) tx queue locking.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/core.h | 8 +++++
drivers/net/wireless/ath/ath10k/htt_tx.c | 11 ++++--
drivers/net/wireless/ath/ath10k/mac.c | 20 ++++++++++-
drivers/net/wireless/ath/ath10k/mac.h | 57 ++++++++++++++++++++++++++++++++
4 files changed, 92 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index cf7963d..68df646 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -280,6 +280,7 @@ struct ath10k_vif {
bool beacon_sent;
void *beacon_buf;
dma_addr_t beacon_paddr;
+ unsigned long tx_paused; /* arbitrary values defined by target */
struct ath10k *ar;
struct ath10k_chanctx *arctx;
@@ -472,6 +473,11 @@ static inline const char *ath10k_scan_state_str(enum ath10k_scan_state state)
return "unknown";
}
+enum ath10k_tx_pause_reason {
+ ATH10K_TX_PAUSE_Q_FULL,
+ ATH10K_TX_PAUSE_MAX,
+};
+
struct ath10k {
struct ath_common ath_common;
struct ieee80211_hw *hw;
@@ -631,6 +637,8 @@ struct ath10k {
struct dfs_pattern_detector *dfs_detector;
+ unsigned long tx_paused; /* see ATH10K_TX_PAUSE_ */
+
#ifdef CONFIG_ATH10K_DEBUGFS
struct ath10k_debug debug;
#endif
diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index c1961e7..fcc52c1 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -24,9 +24,14 @@
void __ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
{
+ struct ath10k *ar = htt->ar;
+
htt->num_pending_tx--;
- if (htt->num_pending_tx == htt->max_num_pending_tx - 1)
- ieee80211_wake_queues(htt->ar->hw);
+ if (htt->num_pending_tx == htt->max_num_pending_tx - 1) {
+ spin_lock_bh(&ar->data_lock);
+ ath10k_mac_tx_unlock(htt->ar, ATH10K_TX_PAUSE_Q_FULL);
+ spin_unlock_bh(&ar->data_lock);
+ }
}
static void ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
@@ -49,7 +54,7 @@ static int ath10k_htt_tx_inc_pending(struct ath10k_htt *htt)
htt->num_pending_tx++;
if (htt->num_pending_tx == htt->max_num_pending_tx)
- ieee80211_stop_queues(htt->ar->hw);
+ ath10k_mac_tx_lock(htt->ar, ATH10K_TX_PAUSE_Q_FULL);
exit:
spin_unlock_bh(&htt->tx_lock);
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 721b2ce..f84ffc9 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2805,6 +2805,7 @@ void ath10k_halt(struct ath10k *ar)
ath10k_monitor_stop(ar);
ar->monitor_started = false;
+ ar->tx_paused = 0;
ath10k_scan_finish(ar);
ath10k_peer_cleanup_all(ar);
@@ -3227,6 +3228,7 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
int ret = 0;
u32 value;
int bit;
+ int i;
u32 vdev_param;
vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
@@ -3282,6 +3284,15 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
break;
}
+ /* Using vdev_id as queue number will make it very easy to do per-vif
+ * tx queue locking. This shouldn't wrap due to interface combinations
+ * but do a modulo for correctness sake and prevent using offchannel tx
+ * queues for regular vif tx.
+ */
+ vif->cab_queue = arvif->vdev_id % (IEEE80211_MAX_QUEUES - 1);
+ for (i = 0; i < ARRAY_SIZE(vif->hw_queue); i++)
+ vif->hw_queue[i] = arvif->vdev_id % (IEEE80211_MAX_QUEUES - 1);
+
/* Some firmware revisions don't wait for beacon tx completion before
* sending another SWBA event. This could lead to hardware using old
* (freed) beacon data in some cases, e.g. tx credit starvation
@@ -5779,6 +5790,7 @@ int ath10k_mac_register(struct ath10k *ar)
IEEE80211_HW_HAS_RATE_CONTROL |
IEEE80211_HW_AP_LINK_PS |
IEEE80211_HW_WANT_MONITOR_VIF |
+ IEEE80211_HW_QUEUE_CONTROL |
IEEE80211_HW_SPECTRUM_MGMT;
ar->hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS;
@@ -5824,7 +5836,13 @@ int ath10k_mac_register(struct ath10k *ar)
* on LL hardware queues are managed entirely by the FW
* so we only advertise to mac we can do the queues thing
*/
- ar->hw->queues = 4;
+ ar->hw->queues = IEEE80211_MAX_QUEUES;
+
+ /* vdev_ids are used as hw queue numbers. Make sure offchan tx queue is
+ * something that vdev_ids can't reach so that we don't stop the queue
+ * accidentally.
+ */
+ ar->hw->offchannel_tx_hw_queue = IEEE80211_MAX_QUEUES - 1;
switch (ar->wmi.op_version) {
case ATH10K_FW_WMI_OP_VERSION_MAIN:
diff --git a/drivers/net/wireless/ath/ath10k/mac.h b/drivers/net/wireless/ath/ath10k/mac.h
index 6829611..76776f6 100644
--- a/drivers/net/wireless/ath/ath10k/mac.h
+++ b/drivers/net/wireless/ath/ath10k/mac.h
@@ -69,4 +69,61 @@ static inline void ath10k_tx_h_seq_no(struct ieee80211_vif *vif,
}
}
+static inline void ath10k_mac_tx_lock(struct ath10k *ar, int reason)
+{
+ lockdep_assert_held(&ar->htt.tx_lock);
+
+ WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
+ ar->tx_paused |= BIT(reason);
+ ieee80211_stop_queues(ar->hw);
+}
+
+static inline void ath10k_mac_tx_unlock(struct ath10k *ar, int reason)
+{
+ struct ath10k_vif *arvif;
+
+ lockdep_assert_held(&ar->htt.tx_lock);
+ lockdep_assert_held(&ar->data_lock);
+
+ WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
+ ar->tx_paused &= ~BIT(reason);
+
+ if (ar->tx_paused)
+ return;
+
+ list_for_each_entry(arvif, &ar->arvifs, list)
+ if (!arvif->tx_paused)
+ ieee80211_wake_queue(ar->hw, arvif->vdev_id);
+}
+
+static inline void ath10k_mac_vif_tx_lock(struct ath10k_vif *arvif, int reason)
+{
+ struct ath10k *ar = arvif->ar;
+
+ lockdep_assert_held(&ar->htt.tx_lock);
+
+ WARN_ON(reason >= BITS_PER_LONG);
+ arvif->tx_paused |= BIT(reason);
+ ieee80211_stop_queue(ar->hw, arvif->vdev_id);
+}
+
+static inline void ath10k_mac_vif_tx_unlock(struct ath10k_vif *arvif,
+ int reason)
+{
+ struct ath10k *ar = arvif->ar;
+
+ lockdep_assert_held(&ar->htt.tx_lock);
+
+ WARN_ON(reason >= BITS_PER_LONG);
+ arvif->tx_paused &= ~BIT(reason);
+
+ if (ar->tx_paused)
+ return;
+
+ if (arvif->tx_paused)
+ return;
+
+ ieee80211_wake_queue(ar->hw, arvif->vdev_id);
+}
+
#endif /* _MAC_H_ */
--
1.8.5.3
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH 6/7] ath10k: implement tx pause wmi event
2015-01-30 8:41 ` Michal Kazior
@ 2015-01-30 8:41 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 8:41 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
qca6174 wmi-tlv firmware defines a new wmi event
for host tx pausing (i.e. stop/wake tx queues).
Map these events to ath10k/mac80211 tx queue
control.
This is important for multi-channel thourghput
performance.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/mac.c | 12 +++++
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 86 +++++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi-tlv.h | 42 +++++++++++++++
3 files changed, 140 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index f84ffc9..eea6b95 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3482,6 +3482,14 @@ err:
return ret;
}
+static void ath10k_mac_vif_tx_unlock_all(struct ath10k_vif *arvif)
+{
+ int i;
+
+ for (i = 0; i < BITS_PER_LONG; i++)
+ ath10k_mac_vif_tx_unlock(arvif, i);
+}
+
static void ath10k_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
@@ -3534,6 +3542,10 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
}
+ spin_lock_bh(&ar->htt.tx_lock);
+ ath10k_mac_vif_tx_unlock_all(arvif);
+ spin_unlock_bh(&ar->htt.tx_lock);
+
mutex_unlock(&ar->conf_mutex);
}
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index 0e36b34..3763359 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -16,6 +16,7 @@
*/
#include "core.h"
#include "debug.h"
+#include "mac.h"
#include "hw.h"
#include "wmi.h"
#include "wmi-ops.h"
@@ -62,6 +63,8 @@ static const struct wmi_tlv_policy wmi_tlv_policies[] = {
= { .min_len = sizeof(struct wmi_tlv_bcn_tx_status_ev) },
[WMI_TLV_TAG_STRUCT_DIAG_DATA_CONTAINER_EVENT]
= { .min_len = sizeof(struct wmi_tlv_diag_data_ev) },
+ [WMI_TLV_TAG_STRUCT_TX_PAUSE_EVENT]
+ = { .min_len = sizeof(struct wmi_tlv_tx_pause_ev) },
};
static int
@@ -296,6 +299,86 @@ static int ath10k_wmi_tlv_event_diag(struct ath10k *ar,
return 0;
}
+static int ath10k_wmi_tlv_event_tx_pause(struct ath10k *ar,
+ struct sk_buff *skb)
+{
+ const void **tb;
+ const struct wmi_tlv_tx_pause_ev *ev;
+ int ret, vdev_id;
+ u32 pause_id, action, vdev_map, peer_id, tid_map;
+ struct ath10k_vif *arvif;
+
+ tb = ath10k_wmi_tlv_parse_alloc(ar, skb->data, skb->len, GFP_ATOMIC);
+ if (IS_ERR(tb)) {
+ ret = PTR_ERR(tb);
+ ath10k_warn(ar, "failed to parse tlv: %d\n", ret);
+ return ret;
+ }
+
+ ev = tb[WMI_TLV_TAG_STRUCT_TX_PAUSE_EVENT];
+ if (!ev) {
+ kfree(tb);
+ return -EPROTO;
+ }
+
+ pause_id = __le32_to_cpu(ev->pause_id);
+ action = __le32_to_cpu(ev->action);
+ vdev_map = __le32_to_cpu(ev->vdev_map);
+ peer_id = __le32_to_cpu(ev->peer_id);
+ tid_map = __le32_to_cpu(ev->tid_map);
+
+ ath10k_dbg(ar, ATH10K_DBG_WMI,
+ "wmi tlv tx pause pause_id %u action %u vdev_map 0x%08x peer_id %u tid_map 0x%08x\n",
+ pause_id, action, vdev_map, peer_id, tid_map);
+
+ for (vdev_id = 0; vdev_map; vdev_id++) {
+ if (!(vdev_map & BIT(vdev_id)))
+ continue;
+
+ vdev_map &= ~BIT(vdev_id);
+
+ spin_lock_bh(&ar->htt.tx_lock);
+ spin_lock_bh(&ar->data_lock);
+
+ arvif = ath10k_get_arvif(ar, vdev_id);
+ if (!arvif) {
+ ath10k_warn(ar, "failed to find arvif for vdev %i for tx pause event\n",
+ vdev_id);
+ spin_unlock_bh(&ar->data_lock);
+ spin_unlock_bh(&ar->htt.tx_lock);
+ continue;
+ }
+
+ /* FIXME: Some pause_id aren't vdev orinted. Instead they are
+ * peer_id oriented (mostly for AP mode scenarios).
+ */
+ if (pause_id == WMI_TLV_TX_PAUSE_ID_MCC ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_P2P_CLI_NOA ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_P2P_GO_PS ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_AP_PS ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_IBSS_PS) {
+ switch (action) {
+ case WMI_TLV_TX_PAUSE_ACTION_STOP:
+ ath10k_mac_vif_tx_lock(arvif, pause_id);
+ break;
+ case WMI_TLV_TX_PAUSE_ACTION_WAKE:
+ ath10k_mac_vif_tx_unlock(arvif, pause_id);
+ break;
+ default:
+ ath10k_warn(ar, "received unknown tx pause action %d on vdev %i, ignoring\n",
+ action, vdev_id);
+ break;
+ }
+ }
+
+ spin_unlock_bh(&ar->data_lock);
+ spin_unlock_bh(&ar->htt.tx_lock);
+ }
+
+ kfree(tb);
+ return 0;
+}
+
/***********/
/* TLV ops */
/***********/
@@ -417,6 +500,9 @@ static void ath10k_wmi_tlv_op_rx(struct ath10k *ar, struct sk_buff *skb)
case WMI_TLV_DIAG_EVENTID:
ath10k_wmi_tlv_event_diag(ar, skb);
break;
+ case WMI_TLV_TX_PAUSE_EVENTID:
+ ath10k_wmi_tlv_event_tx_pause(ar, skb);
+ break;
default:
ath10k_warn(ar, "Unknown eventid: %d\n", id);
break;
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.h b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
index a05952a..3abc85f 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.h
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
@@ -1443,6 +1443,48 @@ struct wmi_tlv_adaptive_qcs {
__le32 enable;
} __packed;
+/**
+ * wmi_tlv_tx_pause_id - firmware tx queue pause reason types
+ *
+ * @WMI_TLV_TX_PAUSE_ID_MCC: used for by multi-channel firmware scheduler.
+ * Only vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_AP_PEER_PS: peer in AP mode is asleep.
+ * Only peer_id is valid.
+ * @WMI_TLV_TX_PAUSE_ID_AP_PEER_UAPSD: Only peer_id and tid_map are valid.
+ * @WMI_TLV_TX_PAUSE_ID_P2P_CLI_NOA: Only vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_P2P_GO_PS: Only vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_STA_ADD_BA: Only peer_id and tid_map are valid.
+ * @WMI_TLV_TX_PAUSE_ID_AP_PS: When all peers are asleep in AP mode. Only
+ * vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_IBSS_PS: When all peers are asleep in IBSS mode. Only
+ * vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_HOST: Host itself requested tx pause.
+ */
+enum wmi_tlv_tx_pause_id {
+ WMI_TLV_TX_PAUSE_ID_MCC = 1,
+ WMI_TLV_TX_PAUSE_ID_AP_PEER_PS = 2,
+ WMI_TLV_TX_PAUSE_ID_AP_PEER_UAPSD = 3,
+ WMI_TLV_TX_PAUSE_ID_P2P_CLI_NOA = 4,
+ WMI_TLV_TX_PAUSE_ID_P2P_GO_PS = 5,
+ WMI_TLV_TX_PAUSE_ID_STA_ADD_BA = 6,
+ WMI_TLV_TX_PAUSE_ID_AP_PS = 7,
+ WMI_TLV_TX_PAUSE_ID_IBSS_PS = 8,
+ WMI_TLV_TX_PAUSE_ID_HOST = 21,
+};
+
+enum wmi_tlv_tx_pause_action {
+ WMI_TLV_TX_PAUSE_ACTION_STOP,
+ WMI_TLV_TX_PAUSE_ACTION_WAKE,
+};
+
+struct wmi_tlv_tx_pause_ev {
+ __le32 pause_id;
+ __le32 action;
+ __le32 vdev_map;
+ __le32 peer_id;
+ __le32 tid_map;
+} __packed;
+
void ath10k_wmi_tlv_attach(struct ath10k *ar);
#endif
--
1.8.5.3
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH 6/7] ath10k: implement tx pause wmi event
@ 2015-01-30 8:41 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 8:41 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
qca6174 wmi-tlv firmware defines a new wmi event
for host tx pausing (i.e. stop/wake tx queues).
Map these events to ath10k/mac80211 tx queue
control.
This is important for multi-channel thourghput
performance.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/mac.c | 12 +++++
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 86 +++++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi-tlv.h | 42 +++++++++++++++
3 files changed, 140 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index f84ffc9..eea6b95 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3482,6 +3482,14 @@ err:
return ret;
}
+static void ath10k_mac_vif_tx_unlock_all(struct ath10k_vif *arvif)
+{
+ int i;
+
+ for (i = 0; i < BITS_PER_LONG; i++)
+ ath10k_mac_vif_tx_unlock(arvif, i);
+}
+
static void ath10k_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
@@ -3534,6 +3542,10 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
}
+ spin_lock_bh(&ar->htt.tx_lock);
+ ath10k_mac_vif_tx_unlock_all(arvif);
+ spin_unlock_bh(&ar->htt.tx_lock);
+
mutex_unlock(&ar->conf_mutex);
}
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index 0e36b34..3763359 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -16,6 +16,7 @@
*/
#include "core.h"
#include "debug.h"
+#include "mac.h"
#include "hw.h"
#include "wmi.h"
#include "wmi-ops.h"
@@ -62,6 +63,8 @@ static const struct wmi_tlv_policy wmi_tlv_policies[] = {
= { .min_len = sizeof(struct wmi_tlv_bcn_tx_status_ev) },
[WMI_TLV_TAG_STRUCT_DIAG_DATA_CONTAINER_EVENT]
= { .min_len = sizeof(struct wmi_tlv_diag_data_ev) },
+ [WMI_TLV_TAG_STRUCT_TX_PAUSE_EVENT]
+ = { .min_len = sizeof(struct wmi_tlv_tx_pause_ev) },
};
static int
@@ -296,6 +299,86 @@ static int ath10k_wmi_tlv_event_diag(struct ath10k *ar,
return 0;
}
+static int ath10k_wmi_tlv_event_tx_pause(struct ath10k *ar,
+ struct sk_buff *skb)
+{
+ const void **tb;
+ const struct wmi_tlv_tx_pause_ev *ev;
+ int ret, vdev_id;
+ u32 pause_id, action, vdev_map, peer_id, tid_map;
+ struct ath10k_vif *arvif;
+
+ tb = ath10k_wmi_tlv_parse_alloc(ar, skb->data, skb->len, GFP_ATOMIC);
+ if (IS_ERR(tb)) {
+ ret = PTR_ERR(tb);
+ ath10k_warn(ar, "failed to parse tlv: %d\n", ret);
+ return ret;
+ }
+
+ ev = tb[WMI_TLV_TAG_STRUCT_TX_PAUSE_EVENT];
+ if (!ev) {
+ kfree(tb);
+ return -EPROTO;
+ }
+
+ pause_id = __le32_to_cpu(ev->pause_id);
+ action = __le32_to_cpu(ev->action);
+ vdev_map = __le32_to_cpu(ev->vdev_map);
+ peer_id = __le32_to_cpu(ev->peer_id);
+ tid_map = __le32_to_cpu(ev->tid_map);
+
+ ath10k_dbg(ar, ATH10K_DBG_WMI,
+ "wmi tlv tx pause pause_id %u action %u vdev_map 0x%08x peer_id %u tid_map 0x%08x\n",
+ pause_id, action, vdev_map, peer_id, tid_map);
+
+ for (vdev_id = 0; vdev_map; vdev_id++) {
+ if (!(vdev_map & BIT(vdev_id)))
+ continue;
+
+ vdev_map &= ~BIT(vdev_id);
+
+ spin_lock_bh(&ar->htt.tx_lock);
+ spin_lock_bh(&ar->data_lock);
+
+ arvif = ath10k_get_arvif(ar, vdev_id);
+ if (!arvif) {
+ ath10k_warn(ar, "failed to find arvif for vdev %i for tx pause event\n",
+ vdev_id);
+ spin_unlock_bh(&ar->data_lock);
+ spin_unlock_bh(&ar->htt.tx_lock);
+ continue;
+ }
+
+ /* FIXME: Some pause_id aren't vdev orinted. Instead they are
+ * peer_id oriented (mostly for AP mode scenarios).
+ */
+ if (pause_id == WMI_TLV_TX_PAUSE_ID_MCC ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_P2P_CLI_NOA ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_P2P_GO_PS ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_AP_PS ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_IBSS_PS) {
+ switch (action) {
+ case WMI_TLV_TX_PAUSE_ACTION_STOP:
+ ath10k_mac_vif_tx_lock(arvif, pause_id);
+ break;
+ case WMI_TLV_TX_PAUSE_ACTION_WAKE:
+ ath10k_mac_vif_tx_unlock(arvif, pause_id);
+ break;
+ default:
+ ath10k_warn(ar, "received unknown tx pause action %d on vdev %i, ignoring\n",
+ action, vdev_id);
+ break;
+ }
+ }
+
+ spin_unlock_bh(&ar->data_lock);
+ spin_unlock_bh(&ar->htt.tx_lock);
+ }
+
+ kfree(tb);
+ return 0;
+}
+
/***********/
/* TLV ops */
/***********/
@@ -417,6 +500,9 @@ static void ath10k_wmi_tlv_op_rx(struct ath10k *ar, struct sk_buff *skb)
case WMI_TLV_DIAG_EVENTID:
ath10k_wmi_tlv_event_diag(ar, skb);
break;
+ case WMI_TLV_TX_PAUSE_EVENTID:
+ ath10k_wmi_tlv_event_tx_pause(ar, skb);
+ break;
default:
ath10k_warn(ar, "Unknown eventid: %d\n", id);
break;
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.h b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
index a05952a..3abc85f 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.h
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
@@ -1443,6 +1443,48 @@ struct wmi_tlv_adaptive_qcs {
__le32 enable;
} __packed;
+/**
+ * wmi_tlv_tx_pause_id - firmware tx queue pause reason types
+ *
+ * @WMI_TLV_TX_PAUSE_ID_MCC: used for by multi-channel firmware scheduler.
+ * Only vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_AP_PEER_PS: peer in AP mode is asleep.
+ * Only peer_id is valid.
+ * @WMI_TLV_TX_PAUSE_ID_AP_PEER_UAPSD: Only peer_id and tid_map are valid.
+ * @WMI_TLV_TX_PAUSE_ID_P2P_CLI_NOA: Only vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_P2P_GO_PS: Only vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_STA_ADD_BA: Only peer_id and tid_map are valid.
+ * @WMI_TLV_TX_PAUSE_ID_AP_PS: When all peers are asleep in AP mode. Only
+ * vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_IBSS_PS: When all peers are asleep in IBSS mode. Only
+ * vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_HOST: Host itself requested tx pause.
+ */
+enum wmi_tlv_tx_pause_id {
+ WMI_TLV_TX_PAUSE_ID_MCC = 1,
+ WMI_TLV_TX_PAUSE_ID_AP_PEER_PS = 2,
+ WMI_TLV_TX_PAUSE_ID_AP_PEER_UAPSD = 3,
+ WMI_TLV_TX_PAUSE_ID_P2P_CLI_NOA = 4,
+ WMI_TLV_TX_PAUSE_ID_P2P_GO_PS = 5,
+ WMI_TLV_TX_PAUSE_ID_STA_ADD_BA = 6,
+ WMI_TLV_TX_PAUSE_ID_AP_PS = 7,
+ WMI_TLV_TX_PAUSE_ID_IBSS_PS = 8,
+ WMI_TLV_TX_PAUSE_ID_HOST = 21,
+};
+
+enum wmi_tlv_tx_pause_action {
+ WMI_TLV_TX_PAUSE_ACTION_STOP,
+ WMI_TLV_TX_PAUSE_ACTION_WAKE,
+};
+
+struct wmi_tlv_tx_pause_ev {
+ __le32 pause_id;
+ __le32 action;
+ __le32 vdev_map;
+ __le32 peer_id;
+ __le32 tid_map;
+} __packed;
+
void ath10k_wmi_tlv_attach(struct ath10k *ar);
#endif
--
1.8.5.3
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH 7/7] ath10k: enable multi-channel on supported devices
2015-01-30 8:41 ` Michal Kazior
@ 2015-01-30 8:41 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 8:41 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
This effectively enables multi-channel operation
on qca6174 WLAN.RM.2.0-00073 (and possibly any
newer firmware release for qca6174).
This adds appopriate interface combinations and
initializes firmware channel scheduler.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/mac.c | 81 ++++++++++++++++++++++++++++++++++-
1 file changed, 80 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index eea6b95..55b73bd 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2953,6 +2953,15 @@ static int ath10k_start(struct ieee80211_hw *hw)
goto err_core_stop;
}
+ if (test_bit(WMI_SERVICE_ADAPTIVE_OCS, ar->wmi.svc_map)) {
+ ret = ath10k_wmi_adaptive_qcs(ar, true);
+ if (ret) {
+ ath10k_warn(ar, "failed to enable adaptive qcs: %d\n",
+ ret);
+ goto err_core_stop;
+ }
+ }
+
if (ar->cfg_tx_chainmask)
__ath10k_set_antenna(ar, ar->cfg_tx_chainmask,
ar->cfg_rx_chainmask);
@@ -5608,6 +5617,64 @@ static const struct ieee80211_iface_combination ath10k_10x_if_comb[] = {
},
};
+static const struct ieee80211_iface_limit ath10k_tlv_if_limit[] = {
+ {
+ .max = 2,
+ .types = BIT(NL80211_IFTYPE_STATION) |
+ BIT(NL80211_IFTYPE_AP) |
+ BIT(NL80211_IFTYPE_P2P_CLIENT) |
+ BIT(NL80211_IFTYPE_P2P_GO),
+ },
+ {
+ .max = 1,
+ .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
+ },
+};
+
+static const struct ieee80211_iface_limit ath10k_tlv_if_limit_ibss[] = {
+ {
+ .max = 1,
+ .types = BIT(NL80211_IFTYPE_STATION),
+ },
+ {
+ .max = 1,
+ .types = BIT(NL80211_IFTYPE_ADHOC),
+ },
+};
+
+/* FIXME: This is not thouroughly tested. These combinations may over- or
+ * underestimate hw/fw capabilities.
+ */
+static struct ieee80211_iface_combination ath10k_tlv_if_comb[] = {
+ {
+ .limits = ath10k_tlv_if_limit,
+ .num_different_channels = 1,
+ .max_interfaces = 2,
+ .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
+ },
+ {
+ .limits = ath10k_tlv_if_limit_ibss,
+ .num_different_channels = 1,
+ .max_interfaces = 2,
+ .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
+ },
+};
+
+static struct ieee80211_iface_combination ath10k_tlv_qcs_if_comb[] = {
+ {
+ .limits = ath10k_tlv_if_limit,
+ .num_different_channels = 2,
+ .max_interfaces = 2,
+ .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
+ },
+ {
+ .limits = ath10k_tlv_if_limit_ibss,
+ .num_different_channels = 1,
+ .max_interfaces = 2,
+ .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
+ },
+};
+
static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
{
struct ieee80211_sta_vht_cap vht_cap = {0};
@@ -5858,12 +5925,24 @@ int ath10k_mac_register(struct ath10k *ar)
switch (ar->wmi.op_version) {
case ATH10K_FW_WMI_OP_VERSION_MAIN:
- case ATH10K_FW_WMI_OP_VERSION_TLV:
ar->hw->wiphy->iface_combinations = ath10k_if_comb;
ar->hw->wiphy->n_iface_combinations =
ARRAY_SIZE(ath10k_if_comb);
ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
break;
+ case ATH10K_FW_WMI_OP_VERSION_TLV:
+ if (test_bit(WMI_SERVICE_ADAPTIVE_OCS, ar->wmi.svc_map)) {
+ ar->hw->wiphy->iface_combinations =
+ ath10k_tlv_qcs_if_comb;
+ ar->hw->wiphy->n_iface_combinations =
+ ARRAY_SIZE(ath10k_tlv_qcs_if_comb);
+ } else {
+ ar->hw->wiphy->iface_combinations = ath10k_tlv_if_comb;
+ ar->hw->wiphy->n_iface_combinations =
+ ARRAY_SIZE(ath10k_tlv_if_comb);
+ }
+ ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
+ break;
case ATH10K_FW_WMI_OP_VERSION_10_1:
case ATH10K_FW_WMI_OP_VERSION_10_2:
case ATH10K_FW_WMI_OP_VERSION_10_2_4:
--
1.8.5.3
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH 7/7] ath10k: enable multi-channel on supported devices
@ 2015-01-30 8:41 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 8:41 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
This effectively enables multi-channel operation
on qca6174 WLAN.RM.2.0-00073 (and possibly any
newer firmware release for qca6174).
This adds appopriate interface combinations and
initializes firmware channel scheduler.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/mac.c | 81 ++++++++++++++++++++++++++++++++++-
1 file changed, 80 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index eea6b95..55b73bd 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2953,6 +2953,15 @@ static int ath10k_start(struct ieee80211_hw *hw)
goto err_core_stop;
}
+ if (test_bit(WMI_SERVICE_ADAPTIVE_OCS, ar->wmi.svc_map)) {
+ ret = ath10k_wmi_adaptive_qcs(ar, true);
+ if (ret) {
+ ath10k_warn(ar, "failed to enable adaptive qcs: %d\n",
+ ret);
+ goto err_core_stop;
+ }
+ }
+
if (ar->cfg_tx_chainmask)
__ath10k_set_antenna(ar, ar->cfg_tx_chainmask,
ar->cfg_rx_chainmask);
@@ -5608,6 +5617,64 @@ static const struct ieee80211_iface_combination ath10k_10x_if_comb[] = {
},
};
+static const struct ieee80211_iface_limit ath10k_tlv_if_limit[] = {
+ {
+ .max = 2,
+ .types = BIT(NL80211_IFTYPE_STATION) |
+ BIT(NL80211_IFTYPE_AP) |
+ BIT(NL80211_IFTYPE_P2P_CLIENT) |
+ BIT(NL80211_IFTYPE_P2P_GO),
+ },
+ {
+ .max = 1,
+ .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
+ },
+};
+
+static const struct ieee80211_iface_limit ath10k_tlv_if_limit_ibss[] = {
+ {
+ .max = 1,
+ .types = BIT(NL80211_IFTYPE_STATION),
+ },
+ {
+ .max = 1,
+ .types = BIT(NL80211_IFTYPE_ADHOC),
+ },
+};
+
+/* FIXME: This is not thouroughly tested. These combinations may over- or
+ * underestimate hw/fw capabilities.
+ */
+static struct ieee80211_iface_combination ath10k_tlv_if_comb[] = {
+ {
+ .limits = ath10k_tlv_if_limit,
+ .num_different_channels = 1,
+ .max_interfaces = 2,
+ .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
+ },
+ {
+ .limits = ath10k_tlv_if_limit_ibss,
+ .num_different_channels = 1,
+ .max_interfaces = 2,
+ .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
+ },
+};
+
+static struct ieee80211_iface_combination ath10k_tlv_qcs_if_comb[] = {
+ {
+ .limits = ath10k_tlv_if_limit,
+ .num_different_channels = 2,
+ .max_interfaces = 2,
+ .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
+ },
+ {
+ .limits = ath10k_tlv_if_limit_ibss,
+ .num_different_channels = 1,
+ .max_interfaces = 2,
+ .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
+ },
+};
+
static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
{
struct ieee80211_sta_vht_cap vht_cap = {0};
@@ -5858,12 +5925,24 @@ int ath10k_mac_register(struct ath10k *ar)
switch (ar->wmi.op_version) {
case ATH10K_FW_WMI_OP_VERSION_MAIN:
- case ATH10K_FW_WMI_OP_VERSION_TLV:
ar->hw->wiphy->iface_combinations = ath10k_if_comb;
ar->hw->wiphy->n_iface_combinations =
ARRAY_SIZE(ath10k_if_comb);
ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
break;
+ case ATH10K_FW_WMI_OP_VERSION_TLV:
+ if (test_bit(WMI_SERVICE_ADAPTIVE_OCS, ar->wmi.svc_map)) {
+ ar->hw->wiphy->iface_combinations =
+ ath10k_tlv_qcs_if_comb;
+ ar->hw->wiphy->n_iface_combinations =
+ ARRAY_SIZE(ath10k_tlv_qcs_if_comb);
+ } else {
+ ar->hw->wiphy->iface_combinations = ath10k_tlv_if_comb;
+ ar->hw->wiphy->n_iface_combinations =
+ ARRAY_SIZE(ath10k_tlv_if_comb);
+ }
+ ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
+ break;
case ATH10K_FW_WMI_OP_VERSION_10_1:
case ATH10K_FW_WMI_OP_VERSION_10_2:
case ATH10K_FW_WMI_OP_VERSION_10_2_4:
--
1.8.5.3
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 58+ messages in thread
* Re: [PATCH 2/7] ath10k: implement chanctx API
2015-01-30 8:41 ` Michal Kazior
@ 2015-01-30 10:44 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 10:44 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
On 30 January 2015 at 09:41, Michal Kazior <michal.kazior@tieto.com> wrote:
> The chanctx API will allow ath10k to support
> multi-channel operation.
[...]
Oh snap. I just rebased to latest master and Yanbo's patch for 2G VHT
makes this patch null deref on assoc. I'll respin a v2 later.
Michał
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH 2/7] ath10k: implement chanctx API
@ 2015-01-30 10:44 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 10:44 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
On 30 January 2015 at 09:41, Michal Kazior <michal.kazior@tieto.com> wrote:
> The chanctx API will allow ath10k to support
> multi-channel operation.
[...]
Oh snap. I just rebased to latest master and Yanbo's patch for 2G VHT
makes this patch null deref on assoc. I'll respin a v2 later.
Michał
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 58+ messages in thread
* [PATCH v2 0/7] ath10k: add multi-channel support
2015-01-30 8:41 ` Michal Kazior
@ 2015-01-30 12:31 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 12:31 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
New qca6174 with wmi-tlv firmware supports
multi-channel operation. To make use of it
ath10k needs a few changes: implement mac80211's
chanctx API and rework tx queue control a bit.
There are still rough edges (involving seldom
beacon reports from firmware causing beacon loss
in some cases, etc). Hopefully this will be fixed
either in driver or firmware eventually.
Changes since RFC:
* I've sent `ath10k: defer AP self-peer removal
wait` separately now because it's not really
required for multi-channel per se
v2:
* fix null deref after rebasing
* fix commit log typo
Michal Kazior (7):
ath10k: allow empty ssid vdev config
ath10k: implement chanctx API
ath10k: implement adaptive qcs command
ath10k: protect ar->arvifs linking with data_lock
ath10k: rework tx queue locking
ath10k: implement tx pause wmi event
ath10k: enable multi-channel on supported devices
drivers/net/wireless/ath/ath10k/core.c | 1 +
drivers/net/wireless/ath/ath10k/core.h | 16 +
drivers/net/wireless/ath/ath10k/htt_rx.c | 87 +++-
drivers/net/wireless/ath/ath10k/htt_tx.c | 11 +-
drivers/net/wireless/ath/ath10k/mac.c | 682 ++++++++++++++++++++++++++----
drivers/net/wireless/ath/ath10k/mac.h | 57 +++
drivers/net/wireless/ath/ath10k/wmi-ops.h | 16 +
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 118 +++++-
drivers/net/wireless/ath/ath10k/wmi-tlv.h | 46 ++
drivers/net/wireless/ath/ath10k/wmi.c | 18 +-
drivers/net/wireless/ath/ath10k/wmi.h | 1 +
11 files changed, 966 insertions(+), 87 deletions(-)
--
1.8.5.3
^ permalink raw reply [flat|nested] 58+ messages in thread
* [PATCH v2 0/7] ath10k: add multi-channel support
@ 2015-01-30 12:31 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 12:31 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
New qca6174 with wmi-tlv firmware supports
multi-channel operation. To make use of it
ath10k needs a few changes: implement mac80211's
chanctx API and rework tx queue control a bit.
There are still rough edges (involving seldom
beacon reports from firmware causing beacon loss
in some cases, etc). Hopefully this will be fixed
either in driver or firmware eventually.
Changes since RFC:
* I've sent `ath10k: defer AP self-peer removal
wait` separately now because it's not really
required for multi-channel per se
v2:
* fix null deref after rebasing
* fix commit log typo
Michal Kazior (7):
ath10k: allow empty ssid vdev config
ath10k: implement chanctx API
ath10k: implement adaptive qcs command
ath10k: protect ar->arvifs linking with data_lock
ath10k: rework tx queue locking
ath10k: implement tx pause wmi event
ath10k: enable multi-channel on supported devices
drivers/net/wireless/ath/ath10k/core.c | 1 +
drivers/net/wireless/ath/ath10k/core.h | 16 +
drivers/net/wireless/ath/ath10k/htt_rx.c | 87 +++-
drivers/net/wireless/ath/ath10k/htt_tx.c | 11 +-
drivers/net/wireless/ath/ath10k/mac.c | 682 ++++++++++++++++++++++++++----
drivers/net/wireless/ath/ath10k/mac.h | 57 +++
drivers/net/wireless/ath/ath10k/wmi-ops.h | 16 +
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 118 +++++-
drivers/net/wireless/ath/ath10k/wmi-tlv.h | 46 ++
drivers/net/wireless/ath/ath10k/wmi.c | 18 +-
drivers/net/wireless/ath/ath10k/wmi.h | 1 +
11 files changed, 966 insertions(+), 87 deletions(-)
--
1.8.5.3
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 58+ messages in thread
* [PATCH v2 1/7] ath10k: allow empty ssid vdev config
2015-01-30 12:31 ` Michal Kazior
@ 2015-01-30 12:31 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 12:31 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
It doesn't make much sense to reject a valid
firmware configuration combination.
Since SSID isn't known early on it might make
sense to allow driver to start vdev without SSID
and restart it later.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 2 --
drivers/net/wireless/ath/ath10k/wmi.c | 2 --
2 files changed, 4 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index be32db9..ccafb69 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -1302,8 +1302,6 @@ ath10k_wmi_tlv_op_gen_vdev_start(struct ath10k *ar,
void *ptr;
u32 flags = 0;
- if (WARN_ON(arg->ssid && arg->ssid_len == 0))
- return ERR_PTR(-EINVAL);
if (WARN_ON(arg->hidden_ssid && !arg->ssid))
return ERR_PTR(-EINVAL);
if (WARN_ON(arg->ssid_len > sizeof(cmd->ssid.ssid)))
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index ce6f0c7..97ee2e9 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -4264,8 +4264,6 @@ ath10k_wmi_op_gen_vdev_start(struct ath10k *ar,
const char *cmdname;
u32 flags = 0;
- if (WARN_ON(arg->ssid && arg->ssid_len == 0))
- return ERR_PTR(-EINVAL);
if (WARN_ON(arg->hidden_ssid && !arg->ssid))
return ERR_PTR(-EINVAL);
if (WARN_ON(arg->ssid_len > sizeof(cmd->ssid.ssid)))
--
1.8.5.3
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH v2 1/7] ath10k: allow empty ssid vdev config
@ 2015-01-30 12:31 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 12:31 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
It doesn't make much sense to reject a valid
firmware configuration combination.
Since SSID isn't known early on it might make
sense to allow driver to start vdev without SSID
and restart it later.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 2 --
drivers/net/wireless/ath/ath10k/wmi.c | 2 --
2 files changed, 4 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index be32db9..ccafb69 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -1302,8 +1302,6 @@ ath10k_wmi_tlv_op_gen_vdev_start(struct ath10k *ar,
void *ptr;
u32 flags = 0;
- if (WARN_ON(arg->ssid && arg->ssid_len == 0))
- return ERR_PTR(-EINVAL);
if (WARN_ON(arg->hidden_ssid && !arg->ssid))
return ERR_PTR(-EINVAL);
if (WARN_ON(arg->ssid_len > sizeof(cmd->ssid.ssid)))
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index ce6f0c7..97ee2e9 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -4264,8 +4264,6 @@ ath10k_wmi_op_gen_vdev_start(struct ath10k *ar,
const char *cmdname;
u32 flags = 0;
- if (WARN_ON(arg->ssid && arg->ssid_len == 0))
- return ERR_PTR(-EINVAL);
if (WARN_ON(arg->hidden_ssid && !arg->ssid))
return ERR_PTR(-EINVAL);
if (WARN_ON(arg->ssid_len > sizeof(cmd->ssid.ssid)))
--
1.8.5.3
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH v2 2/7] ath10k: implement chanctx API
2015-01-30 12:31 ` Michal Kazior
@ 2015-01-30 12:31 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 12:31 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
The chanctx API will allow ath10k to support
multi-channel operation.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
Notes:
v2:
* prevent null deref in ath10k_peer_assoc_h_vht()
after rebasing to latest master branch
drivers/net/wireless/ath/ath10k/core.c | 1 +
drivers/net/wireless/ath/ath10k/core.h | 8 +
drivers/net/wireless/ath/ath10k/htt_rx.c | 87 ++++-
drivers/net/wireless/ath/ath10k/mac.c | 561 +++++++++++++++++++++++++++----
drivers/net/wireless/ath/ath10k/wmi.c | 13 +-
5 files changed, 592 insertions(+), 78 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 5e9e1a6..57f70327 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -1116,6 +1116,7 @@ int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode)
ar->free_vdev_map = (1LL << ar->max_num_vdevs) - 1;
+ INIT_LIST_HEAD(&ar->arctxs);
INIT_LIST_HEAD(&ar->arvifs);
return 0;
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index abb3203..cf7963d 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -260,6 +260,11 @@ struct ath10k_sta {
#endif
};
+struct ath10k_chanctx {
+ struct list_head list;
+ struct ieee80211_chanctx_conf conf;
+};
+
#define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ)
struct ath10k_vif {
@@ -277,6 +282,7 @@ struct ath10k_vif {
dma_addr_t beacon_paddr;
struct ath10k *ar;
+ struct ath10k_chanctx *arctx;
struct ieee80211_vif *vif;
bool is_started;
@@ -561,6 +567,7 @@ struct ath10k {
struct cfg80211_chan_def chandef;
unsigned long long free_vdev_map;
+ struct ath10k_vif *monitor_arvif;
bool monitor;
int monitor_vdev_id;
bool monitor_started;
@@ -590,6 +597,7 @@ struct ath10k {
/* protects shared structure data */
spinlock_t data_lock;
+ struct list_head arctxs;
struct list_head arvifs;
struct list_head peers;
wait_queue_head_t peer_mapping_wq;
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index c1da44f..b18aa8e 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -773,8 +773,74 @@ static void ath10k_htt_rx_h_rates(struct ath10k *ar,
}
}
+static struct ieee80211_channel *
+ath10k_htt_rx_h_peer_channel(struct ath10k *ar, struct htt_rx_desc *rxd)
+{
+ struct ath10k_peer *peer;
+ struct ath10k_vif *arvif;
+ u16 peer_id;
+
+ lockdep_assert_held(&ar->data_lock);
+
+ if (!rxd)
+ return NULL;
+
+ if (rxd->attention.flags &
+ __cpu_to_le32(RX_ATTENTION_FLAGS_PEER_IDX_INVALID))
+ return NULL;
+
+ if (!(rxd->msdu_end.info0 &
+ __cpu_to_le32(RX_MSDU_END_INFO0_FIRST_MSDU)))
+ return NULL;
+
+ peer_id = MS(__le32_to_cpu(rxd->mpdu_start.info0),
+ RX_MPDU_START_INFO0_PEER_IDX);
+
+ peer = ath10k_peer_find_by_id(ar, peer_id);
+ if (!peer)
+ return NULL;
+
+ arvif = ath10k_get_arvif(ar, peer->vdev_id);
+ if (WARN_ON_ONCE(!arvif->arctx))
+ return NULL;
+
+ if (WARN_ON_ONCE(!arvif->arctx))
+ return NULL;
+
+ return arvif->arctx->conf.def.chan;
+}
+
+static struct ieee80211_channel *
+ath10k_htt_rx_h_vdev_channel(struct ath10k *ar, u32 vdev_id)
+{
+ struct ath10k_vif *arvif;
+
+ lockdep_assert_held(&ar->data_lock);
+
+ list_for_each_entry(arvif, &ar->arvifs, list)
+ if (arvif->vdev_id == vdev_id && arvif->arctx)
+ return arvif->arctx->conf.def.chan;
+
+ return NULL;
+}
+
+static struct ieee80211_channel *
+ath10k_htt_rx_h_any_channel(struct ath10k *ar)
+{
+ struct ath10k_chanctx *arctx;
+
+ lockdep_assert_held(&ar->data_lock);
+
+ list_for_each_entry(arctx, &ar->arctxs, list)
+ return arctx->conf.def.chan;
+
+ return NULL;
+}
+
static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
- struct ieee80211_rx_status *status)
+ struct ieee80211_rx_status *status,
+ struct htt_rx_desc *rxd,
+ u32 vdev_id)
{
struct ieee80211_channel *ch;
@@ -782,6 +848,12 @@ static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
ch = ar->scan_channel;
if (!ch)
ch = ar->rx_channel;
+ if (!ch)
+ ch = ath10k_htt_rx_h_peer_channel(ar, rxd);
+ if (!ch)
+ ch = ath10k_htt_rx_h_vdev_channel(ar, vdev_id);
+ if (!ch)
+ ch = ath10k_htt_rx_h_any_channel(ar);
spin_unlock_bh(&ar->data_lock);
if (!ch)
@@ -819,7 +891,8 @@ static void ath10k_htt_rx_h_mactime(struct ath10k *ar,
static void ath10k_htt_rx_h_ppdu(struct ath10k *ar,
struct sk_buff_head *amsdu,
- struct ieee80211_rx_status *status)
+ struct ieee80211_rx_status *status,
+ u32 vdev_id)
{
struct sk_buff *first;
struct htt_rx_desc *rxd;
@@ -851,7 +924,7 @@ static void ath10k_htt_rx_h_ppdu(struct ath10k *ar,
status->flag |= RX_FLAG_NO_SIGNAL_VAL;
ath10k_htt_rx_h_signal(ar, status, rxd);
- ath10k_htt_rx_h_channel(ar, status);
+ ath10k_htt_rx_h_channel(ar, status, rxd, vdev_id);
ath10k_htt_rx_h_rates(ar, status, rxd);
}
@@ -1522,7 +1595,7 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
break;
}
- ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status);
+ ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status, 0xffff);
ath10k_htt_rx_h_unchain(ar, &amsdu, ret > 0);
ath10k_htt_rx_h_filter(ar, &amsdu, rx_status);
ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status);
@@ -1569,7 +1642,7 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
return;
}
- ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status);
+ ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status, 0xffff);
ath10k_htt_rx_h_filter(ar, &amsdu, rx_status);
ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status);
ath10k_htt_rx_h_deliver(ar, &amsdu, rx_status);
@@ -1796,7 +1869,7 @@ static void ath10k_htt_rx_h_rx_offload(struct ath10k *ar,
status->flag |= RX_FLAG_NO_SIGNAL_VAL;
ath10k_htt_rx_h_rx_offload_prot(status, msdu);
- ath10k_htt_rx_h_channel(ar, status);
+ ath10k_htt_rx_h_channel(ar, status, NULL, rx->vdev_id);
ath10k_process_rx(ar, status, msdu);
}
}
@@ -1869,7 +1942,7 @@ static void ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb)
* better to report something than nothing though. This
* should still give an idea about rx rate to the user.
*/
- ath10k_htt_rx_h_ppdu(ar, &amsdu, status);
+ ath10k_htt_rx_h_ppdu(ar, &amsdu, status, vdev_id);
ath10k_htt_rx_h_filter(ar, &amsdu, status);
ath10k_htt_rx_h_mpdu(ar, &amsdu, status);
ath10k_htt_rx_h_deliver(ar, &amsdu, status);
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 15e47f4..e099479 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -751,13 +751,32 @@ static int ath10k_monitor_stop(struct ath10k *ar)
static int ath10k_monitor_recalc(struct ath10k *ar)
{
+ struct ath10k_chanctx *arctx;
bool should_start;
+ int num_ctx;
lockdep_assert_held(&ar->conf_mutex);
- should_start = ar->monitor ||
- ar->filter_flags & FIF_PROMISC_IN_BSS ||
- test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
+ should_start = (ar->monitor ||
+ ar->filter_flags & FIF_PROMISC_IN_BSS ||
+ test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags)) &&
+ !list_empty(&ar->arctxs) &&
+ !ar->monitor_arvif;
+
+ num_ctx = 0;
+ list_for_each_entry(arctx, &ar->arctxs, list)
+ num_ctx++;
+
+ /* FIXME: It remains unclear if CAC on multi-channel will work this
+ * way. Multi-channel DFS must be revised.
+ *
+ * FIXME: Hopefully 2x STA on different channels + monitor interface
+ * will simply setup something like a promiscuous mode.
+ */
+ if (WARN_ON(should_start &&
+ test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags) &&
+ num_ctx > 1))
+ return -EPERM;
ath10k_dbg(ar, ATH10K_DBG_MAC,
"mac monitor recalc started? %d should? %d\n",
@@ -829,6 +848,19 @@ static int ath10k_stop_cac(struct ath10k *ar)
return 0;
}
+static bool ath10k_mac_has_radar_enabled(struct ath10k *ar)
+{
+ struct ath10k_chanctx *arctx;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ list_for_each_entry(arctx, &ar->arctxs, list)
+ if (arctx->conf.radar_enabled)
+ return true;
+
+ return false;
+}
+
static void ath10k_recalc_radar_detection(struct ath10k *ar)
{
int ret;
@@ -837,7 +869,7 @@ static void ath10k_recalc_radar_detection(struct ath10k *ar)
ath10k_stop_cac(ar);
- if (!ar->radar_enabled)
+ if (!ath10k_mac_has_radar_enabled(ar))
return;
if (ar->num_started_vdevs > 0)
@@ -858,12 +890,17 @@ static void ath10k_recalc_radar_detection(struct ath10k *ar)
static int ath10k_vdev_start_restart(struct ath10k_vif *arvif, bool restart)
{
struct ath10k *ar = arvif->ar;
- struct cfg80211_chan_def *chandef = &ar->chandef;
+ struct cfg80211_chan_def *chandef;
struct wmi_vdev_start_request_arg arg = {};
int ret = 0;
lockdep_assert_held(&ar->conf_mutex);
+ if (WARN_ON(!arvif->arctx))
+ return -EINVAL;
+
+ chandef = &arvif->arctx->conf.def;
+
reinit_completion(&ar->vdev_setup_done);
arg.vdev_id = arvif->vdev_id;
@@ -1101,6 +1138,76 @@ static int ath10k_mac_setup_prb_tmpl(struct ath10k_vif *arvif)
return 0;
}
+static int ath10k_mac_vif_fix_hidden_ssid(struct ath10k_vif *arvif)
+{
+ struct ath10k *ar = arvif->ar;
+ int ret;
+
+ /* When originally vdev is started during assign_vif_chanctx() some
+ * information is missing, notably SSID. Firmware revisions with beacon
+ * offloading require the SSID to be provided during vdev (re)start to
+ * handle hidden SSID properly.
+ *
+ * Vdev restart must be done after vdev has been both started and
+ * upped. Otherwise some firmware revisions (at least 10.2) fail to
+ * deliver vdev restart response event causing timeouts during vdev
+ * syncing in ath10k.
+ *
+ * Note: The vdev down/up and template reinstallation could be skipped
+ * since only wmi-tlv firmware are known to have beacon offload and
+ * wmi-tlv doesn't seem to misbehave like 10.2 wrt vdev restart
+ * response delivery. It's probably more robust to keep it as is.
+ */
+ if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
+ return 0;
+
+ if (WARN_ON(!arvif->is_started))
+ return -EINVAL;
+
+ if (WARN_ON(!arvif->is_up))
+ return -EINVAL;
+
+ ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
+ if (ret) {
+ ath10k_warn(ar, "failed to bring down ap vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ return ret;
+ }
+
+ /* Vdev down reset beacon & presp templates. Reinstall them. Otherwise
+ * firmware will crash upon vdev up.
+ */
+
+ ret = ath10k_mac_setup_bcn_tmpl(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to update beacon template: %d\n", ret);
+ return ret;
+ }
+
+ ret = ath10k_mac_setup_prb_tmpl(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to update presp template: %d\n", ret);
+ return ret;
+ }
+
+ ret = ath10k_vdev_restart(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to restart ap vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ return ret;
+ }
+
+ ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
+ arvif->bssid);
+ if (ret) {
+ ath10k_warn(ar, "failed to bring up ap vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
static void ath10k_control_beaconing(struct ath10k_vif *arvif,
struct ieee80211_bss_conf *info)
{
@@ -1110,9 +1217,11 @@ static void ath10k_control_beaconing(struct ath10k_vif *arvif,
lockdep_assert_held(&arvif->ar->conf_mutex);
if (!info->enable_beacon) {
- ath10k_vdev_stop(arvif);
+ ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
+ if (ret)
+ ath10k_warn(ar, "failed to down vdev_id %i: %d\n",
+ arvif->vdev_id, ret);
- arvif->is_started = false;
arvif->is_up = false;
spin_lock_bh(&arvif->ar->data_lock);
@@ -1124,10 +1233,6 @@ static void ath10k_control_beaconing(struct ath10k_vif *arvif,
arvif->tx_seq_no = 0x1000;
- ret = ath10k_vdev_start(arvif);
- if (ret)
- return;
-
arvif->aid = 0;
ether_addr_copy(arvif->bssid, info->bssid);
@@ -1136,13 +1241,18 @@ static void ath10k_control_beaconing(struct ath10k_vif *arvif,
if (ret) {
ath10k_warn(ar, "failed to bring up vdev %d: %i\n",
arvif->vdev_id, ret);
- ath10k_vdev_stop(arvif);
return;
}
- arvif->is_started = true;
arvif->is_up = true;
+ ret = ath10k_mac_vif_fix_hidden_ssid(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to fix hidden ssid for vdev %i, expect trouble: %d\n",
+ arvif->vdev_id, ret);
+ return;
+ }
+
ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d up\n", arvif->vdev_id);
}
@@ -1362,13 +1472,17 @@ static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
struct wmi_peer_assoc_complete_arg *arg)
{
struct ieee80211_bss_conf *info = &vif->bss_conf;
+ struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
struct cfg80211_bss *bss;
const u8 *rsnie = NULL;
const u8 *wpaie = NULL;
lockdep_assert_held(&ar->conf_mutex);
- bss = cfg80211_get_bss(ar->hw->wiphy, ar->hw->conf.chandef.chan,
+ if (WARN_ON(!arvif->arctx))
+ return;
+
+ bss = cfg80211_get_bss(ar->hw->wiphy, arvif->arctx->conf.def.chan,
info->bssid, NULL, 0, 0, 0);
if (bss) {
const struct cfg80211_bss_ies *ies;
@@ -1399,10 +1513,12 @@ static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
}
static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
+ struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct wmi_peer_assoc_complete_arg *arg)
{
struct wmi_rate_set_arg *rateset = &arg->peer_legacy_rates;
+ struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
const struct ieee80211_supported_band *sband;
const struct ieee80211_rate *rates;
u32 ratemask;
@@ -1410,8 +1526,11 @@ static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
lockdep_assert_held(&ar->conf_mutex);
- sband = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band];
- ratemask = sta->supp_rates[ar->hw->conf.chandef.chan->band];
+ if (WARN_ON(!arvif->arctx))
+ return;
+
+ sband = ar->hw->wiphy->bands[arvif->arctx->conf.def.chan->band];
+ ratemask = sta->supp_rates[arvif->arctx->conf.def.chan->band];
rates = sband->bitrates;
rateset->num_rates = 0;
@@ -1576,18 +1695,24 @@ static int ath10k_peer_assoc_qos_ap(struct ath10k *ar,
}
static void ath10k_peer_assoc_h_vht(struct ath10k *ar,
+ struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct wmi_peer_assoc_complete_arg *arg)
{
const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
+ struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+ struct ath10k_chanctx *arctx = arvif->arctx;
u8 ampdu_factor;
+ if (WARN_ON(!arctx))
+ return;
+
if (!vht_cap->vht_supported)
return;
arg->peer_flags |= WMI_PEER_VHT;
- if (ar->hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ)
+ if (arctx->conf.def.chan->band == IEEE80211_BAND_2GHZ)
arg->peer_flags |= WMI_PEER_VHT_2G;
arg->peer_vht_caps = vht_cap->cap;
@@ -1664,9 +1789,13 @@ static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
struct ieee80211_sta *sta,
struct wmi_peer_assoc_complete_arg *arg)
{
+ struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
enum wmi_phy_mode phymode = MODE_UNKNOWN;
- switch (ar->hw->conf.chandef.chan->band) {
+ if (WARN_ON(!arvif->arctx))
+ return;
+
+ switch (arvif->arctx->conf.def.chan->band) {
case IEEE80211_BAND_2GHZ:
if (sta->vht_cap.vht_supported) {
if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
@@ -1728,9 +1857,9 @@ static int ath10k_peer_assoc_prepare(struct ath10k *ar,
ath10k_peer_assoc_h_basic(ar, vif, sta, arg);
ath10k_peer_assoc_h_crypto(ar, vif, arg);
- ath10k_peer_assoc_h_rates(ar, sta, arg);
+ ath10k_peer_assoc_h_rates(ar, vif, sta, arg);
ath10k_peer_assoc_h_ht(ar, sta, arg);
- ath10k_peer_assoc_h_vht(ar, sta, arg);
+ ath10k_peer_assoc_h_vht(ar, vif, sta, arg);
ath10k_peer_assoc_h_qos(ar, vif, sta, arg);
ath10k_peer_assoc_h_phymode(ar, vif, sta, arg);
@@ -2676,6 +2805,7 @@ void ath10k_halt(struct ath10k *ar)
clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
ar->filter_flags = 0;
ar->monitor = false;
+ ar->monitor_arvif = NULL;
if (ar->monitor_started)
ath10k_monitor_stop(ar);
@@ -2929,7 +3059,7 @@ static const char *chandef_get_width(enum nl80211_chan_width width)
return "?";
}
-static void ath10k_config_chan(struct ath10k *ar)
+static void ath10k_mac_chan_reconfigure(struct ath10k *ar)
{
struct ath10k_vif *arvif;
int ret;
@@ -3062,26 +3192,6 @@ static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
mutex_lock(&ar->conf_mutex);
- if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
- ath10k_dbg(ar, ATH10K_DBG_MAC,
- "mac config channel %dMHz flags 0x%x radar %d\n",
- conf->chandef.chan->center_freq,
- conf->chandef.chan->flags,
- conf->radar_enabled);
-
- spin_lock_bh(&ar->data_lock);
- ar->rx_channel = conf->chandef.chan;
- spin_unlock_bh(&ar->data_lock);
-
- ar->radar_enabled = conf->radar_enabled;
- ath10k_recalc_radar_detection(ar);
-
- if (!cfg80211_chandef_identical(&ar->chandef, &conf->chandef)) {
- ar->chandef = conf->chandef;
- ath10k_config_chan(ar);
- }
- }
-
if (changed & IEEE80211_CONF_CHANGE_PS)
ath10k_config_ps(ar);
@@ -3329,6 +3439,15 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
goto err_peer_delete;
}
+ if (vif->type == NL80211_IFTYPE_MONITOR) {
+ ar->monitor_arvif = arvif;
+ ret = ath10k_monitor_recalc(ar);
+ if (ret) {
+ ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
+ goto err_peer_delete;
+ }
+ }
+
mutex_unlock(&ar->conf_mutex);
return 0;
@@ -3395,6 +3514,13 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
ath10k_peer_cleanup(ar, arvif->vdev_id);
+ if (vif->type == NL80211_IFTYPE_MONITOR) {
+ ar->monitor_arvif = NULL;
+ ret = ath10k_monitor_recalc(ar);
+ if (ret)
+ ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
+ }
+
mutex_unlock(&ar->conf_mutex);
}
@@ -3958,22 +4084,6 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
ath10k_mac_dec_num_stations(arvif);
goto exit;
}
-
- if (vif->type == NL80211_IFTYPE_STATION) {
- WARN_ON(arvif->is_started);
-
- ret = ath10k_vdev_start(arvif);
- if (ret) {
- ath10k_warn(ar, "failed to start vdev %i: %d\n",
- arvif->vdev_id, ret);
- WARN_ON(ath10k_peer_delete(ar, arvif->vdev_id,
- sta->addr));
- ath10k_mac_dec_num_stations(arvif);
- goto exit;
- }
-
- arvif->is_started = true;
- }
} else if ((old_state == IEEE80211_STA_NONE &&
new_state == IEEE80211_STA_NOTEXIST)) {
/*
@@ -3982,18 +4092,6 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
ath10k_dbg(ar, ATH10K_DBG_MAC,
"mac vdev %d peer delete %pM (sta gone)\n",
arvif->vdev_id, sta->addr);
-
- if (vif->type == NL80211_IFTYPE_STATION) {
- WARN_ON(!arvif->is_started);
-
- ret = ath10k_vdev_stop(arvif);
- if (ret)
- ath10k_warn(ar, "failed to stop vdev %i: %d\n",
- arvif->vdev_id, ret);
-
- arvif->is_started = false;
- }
-
ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
if (ret)
ath10k_warn(ar, "failed to delete peer %pM for vdev %d: %i\n",
@@ -4812,14 +4910,19 @@ static int ath10k_set_bitrate_mask(struct ieee80211_hw *hw,
{
struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
struct ath10k *ar = arvif->ar;
- enum ieee80211_band band = ar->hw->conf.chandef.chan->band;
+ enum ieee80211_band band;
u8 fixed_rate = WMI_FIXED_RATE_NONE;
u8 fixed_nss = ar->num_rf_chains;
u8 force_sgi;
+ if (!arvif->arctx)
+ return -EPERM;
+
if (ar->cfg_tx_chainmask)
fixed_nss = get_nss_from_chainmask(ar->cfg_tx_chainmask);
+ band = arvif->arctx->conf.def.chan->band;
+
force_sgi = mask->control[band].gi;
if (force_sgi == NL80211_TXRATE_FORCE_LGI)
return -EINVAL;
@@ -4956,6 +5059,316 @@ static int ath10k_ampdu_action(struct ieee80211_hw *hw,
return -EINVAL;
}
+static void
+ath10k_mac_update_rx_channel(struct ath10k *ar)
+{
+ struct ath10k_chanctx *arctx;
+ struct cfg80211_chan_def *def = NULL;
+ int num = 0;
+
+ /* Both locks are required because ar->rx_channel is modified. This
+ * allows readers to hold either lock.
+ */
+ lockdep_assert_held(&ar->conf_mutex);
+ lockdep_assert_held(&ar->data_lock);
+
+ /* FIXME: Sort of an optimization and a workaround. Peers and vifs are
+ * on a linked list now. Doing a lookup peer -> vif -> chanctx for each
+ * ppdu on Rx may reduce performance on low-end systems. It should be
+ * possible to make tables/hashmaps to speed the lookup up (be vary of
+ * cpu data cache lines though regarding sizes) but to keep the initial
+ * implementation simple and less intrusive fallback to the slow lookup
+ * only for multi-channel cases. Single-channel cases will remain to
+ * use the old channel derival and thus performance should not be
+ * affected much.
+ */
+ list_for_each_entry(arctx, &ar->arctxs, list) {
+ def = &arctx->conf.def;
+ ++num;
+ }
+
+ if (num == 1) {
+ ar->rx_channel = def->chan;
+ ar->chandef = *def;
+ } else {
+ ar->rx_channel = NULL;
+ }
+}
+
+static void
+ath10k_mac_chan_ctx_init(struct ath10k *ar,
+ struct ath10k_chanctx *arctx,
+ struct ieee80211_chanctx_conf *conf)
+{
+ lockdep_assert_held(&ar->conf_mutex);
+ lockdep_assert_held(&ar->data_lock);
+
+ memset(arctx, 0, sizeof(*arctx));
+
+ INIT_LIST_HEAD(&arctx->list);
+ list_add(&arctx->list, &ar->arctxs);
+
+ arctx->conf = *conf;
+}
+
+static int
+ath10k_mac_op_add_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_chanctx_conf *ctx)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx add freq %hu width %d ptr %p\n",
+ ctx->def.chan->center_freq, ctx->def.width, ctx);
+
+ mutex_lock(&ar->conf_mutex);
+
+ spin_lock_bh(&ar->data_lock);
+ ath10k_mac_chan_ctx_init(ar, arctx, ctx);
+ ath10k_mac_update_rx_channel(ar);
+ spin_unlock_bh(&ar->data_lock);
+
+ ath10k_recalc_radar_detection(ar);
+ ath10k_monitor_recalc(ar);
+
+ mutex_unlock(&ar->conf_mutex);
+
+ return 0;
+}
+
+static void
+ath10k_mac_op_remove_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_chanctx_conf *ctx)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+ struct ath10k_vif *arvif;
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx remove freq %hu width %d ptr %p\n",
+ ctx->def.chan->center_freq, ctx->def.width, ctx);
+
+ mutex_lock(&ar->conf_mutex);
+
+ spin_lock_bh(&ar->data_lock);
+ list_del(&arctx->list);
+ list_for_each_entry(arvif, &ar->arvifs, list)
+ WARN(arvif->arctx == arctx,
+ "trying to remove chanctx which is bound to vdev_id %i\n",
+ arvif->vdev_id);
+ ath10k_mac_update_rx_channel(ar);
+ spin_unlock_bh(&ar->data_lock);
+
+ ath10k_recalc_radar_detection(ar);
+ ath10k_monitor_recalc(ar);
+
+ mutex_unlock(&ar->conf_mutex);
+}
+
+static void
+ath10k_mac_op_change_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_chanctx_conf *ctx,
+ u32 changed)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx change freq %hu->%hu width %d->%d ptr %p changed %x\n",
+ arctx->conf.def.chan->center_freq,
+ ctx->def.chan->center_freq,
+ arctx->conf.def.width, ctx->def.width,
+ ctx, changed);
+
+ /* This shouldn't really happen because channel switching should use
+ * switch_vif_chanctx().
+ */
+ if (WARN_ON(changed & IEEE80211_CHANCTX_CHANGE_CHANNEL))
+ goto unlock;
+
+ spin_lock_bh(&ar->data_lock);
+ arctx->conf = *ctx;
+ spin_unlock_bh(&ar->data_lock);
+
+ ath10k_recalc_radar_detection(ar);
+
+ /* FIXME: How to configure Rx chains properly? */
+
+ /* No other actions are actually necessary. Firmware maintains channel
+ * definitions per vdev internally and there's no host-side channel
+ * context abstraction to configure, e.g. channel width.
+ */
+
+unlock:
+ mutex_unlock(&ar->conf_mutex);
+}
+
+static int
+ath10k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_chanctx_conf *ctx)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+ struct ath10k_vif *arvif = (void *)vif->drv_priv;
+ int ret;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx assign ptr %p vdev_id %i\n",
+ ctx, arvif->vdev_id);
+
+ if (WARN_ON(arvif->is_started)) {
+ mutex_unlock(&ar->conf_mutex);
+ return -EBUSY;
+ }
+
+ spin_lock_bh(&ar->data_lock);
+ if (WARN_ON(arvif->arctx)) {
+ spin_unlock_bh(&ar->data_lock);
+ mutex_unlock(&ar->conf_mutex);
+ return -EALREADY;
+ }
+ arvif->arctx = arctx;
+ spin_unlock_bh(&ar->data_lock);
+
+ ret = ath10k_vdev_start(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to start vdev %i addr %pM on freq %d: %d\n",
+ arvif->vdev_id, vif->addr,
+ arctx->conf.def.chan->center_freq, ret);
+ goto err;
+ }
+
+ arvif->is_started = true;
+
+ if (vif->type == NL80211_IFTYPE_MONITOR) {
+ ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, 0, vif->addr);
+ if (ret) {
+ ath10k_warn(ar, "failed to up monitor vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ goto err_stop;
+ }
+
+ arvif->is_up = true;
+ }
+
+ mutex_unlock(&ar->conf_mutex);
+ return 0;
+
+err_stop:
+ ath10k_vdev_stop(arvif);
+ arvif->is_started = false;
+
+err:
+ spin_lock_bh(&ar->data_lock);
+ arvif->arctx = NULL;
+ spin_unlock_bh(&ar->data_lock);
+
+ mutex_unlock(&ar->conf_mutex);
+ return ret;
+}
+
+static void
+ath10k_mac_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_chanctx_conf *ctx)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+ struct ath10k_vif *arvif = (void *)vif->drv_priv;
+ int ret;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx unassign ptr %p vdev_id %i\n",
+ ctx, arvif->vdev_id);
+
+ spin_lock_bh(&ar->data_lock);
+ WARN_ON(!arvif->arctx);
+ WARN_ON(arvif->arctx != arctx);
+ arvif->arctx = NULL;
+ spin_unlock_bh(&ar->data_lock);
+
+ WARN_ON(!arvif->is_started);
+
+ if (vif->type == NL80211_IFTYPE_MONITOR) {
+ WARN_ON(!arvif->is_up);
+
+ ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
+ if (ret)
+ ath10k_warn(ar, "failed to down monitor vdev %i: %d\n",
+ arvif->vdev_id, ret);
+
+ arvif->is_up = false;
+ }
+
+ ret = ath10k_vdev_stop(arvif);
+ if (ret)
+ ath10k_warn(ar, "failed to stop vdev %i: %d\n",
+ arvif->vdev_id, ret);
+
+ arvif->is_started = false;
+
+ mutex_unlock(&ar->conf_mutex);
+}
+
+static int
+ath10k_mac_op_switch_vif_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_vif_chanctx_switch *vifs,
+ int n_vifs,
+ enum ieee80211_chanctx_switch_mode mode)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_vif *arvif;
+ struct ath10k_chanctx *arctx_new, *arctx_old;
+ int i;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx switch n_vifs %d mode %d\n",
+ n_vifs, mode);
+
+ spin_lock_bh(&ar->data_lock);
+ for (i = 0; i < n_vifs; i++) {
+ arvif = ath10k_vif_to_arvif(vifs[i].vif);
+ arctx_new = (void *)vifs[i].new_ctx->drv_priv;
+ arctx_old = (void *)vifs[i].old_ctx->drv_priv;
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx switch vdev_id %i freq %hu->%hu width %d->%d ptr %p->%p\n",
+ arvif->vdev_id,
+ vifs[i].old_ctx->def.chan->center_freq,
+ vifs[i].new_ctx->def.chan->center_freq,
+ vifs[i].old_ctx->def.width,
+ vifs[i].new_ctx->def.width,
+ arctx_old, arctx_new);
+
+ if (mode == CHANCTX_SWMODE_SWAP_CONTEXTS) {
+ list_del(&arctx_old->list);
+ ath10k_mac_chan_ctx_init(ar, arctx_new,
+ vifs[i].new_ctx);
+ }
+
+ arvif->arctx = arctx_new;
+ arvif->arctx->conf = *vifs[i].new_ctx;
+ }
+ ath10k_mac_update_rx_channel(ar);
+ spin_unlock_bh(&ar->data_lock);
+
+ /* FIXME: Reconfigure only affected vifs */
+ ath10k_mac_chan_reconfigure(ar);
+
+ mutex_unlock(&ar->conf_mutex);
+ return 0;
+}
+
static const struct ieee80211_ops ath10k_ops = {
.tx = ath10k_tx,
.start = ath10k_start,
@@ -4986,6 +5399,12 @@ static const struct ieee80211_ops ath10k_ops = {
.get_et_sset_count = ath10k_debug_get_et_sset_count,
.get_et_stats = ath10k_debug_get_et_stats,
.get_et_strings = ath10k_debug_get_et_strings,
+ .add_chanctx = ath10k_mac_op_add_chanctx,
+ .remove_chanctx = ath10k_mac_op_remove_chanctx,
+ .change_chanctx = ath10k_mac_op_change_chanctx,
+ .assign_vif_chanctx = ath10k_mac_op_assign_vif_chanctx,
+ .unassign_vif_chanctx = ath10k_mac_op_unassign_vif_chanctx,
+ .switch_vif_chanctx = ath10k_mac_op_switch_vif_chanctx,
CFG80211_TESTMODE_CMD(ath10k_tm_cmd)
@@ -5357,6 +5776,7 @@ int ath10k_mac_register(struct ath10k *ar)
IEEE80211_HW_REPORTS_TX_ACK_STATUS |
IEEE80211_HW_HAS_RATE_CONTROL |
IEEE80211_HW_AP_LINK_PS |
+ IEEE80211_HW_WANT_MONITOR_VIF |
IEEE80211_HW_SPECTRUM_MGMT;
ar->hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS;
@@ -5374,6 +5794,7 @@ int ath10k_mac_register(struct ath10k *ar)
ar->hw->vif_data_size = sizeof(struct ath10k_vif);
ar->hw->sta_data_size = sizeof(struct ath10k_sta);
+ ar->hw->chanctx_data_size = sizeof(struct ath10k_chanctx);
ar->hw->max_listen_interval = ATH10K_MAX_HW_LISTEN_INTERVAL;
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 97ee2e9..0b49ec4 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -2504,6 +2504,7 @@ static void ath10k_dfs_radar_report(struct ath10k *ar,
u64 tsf)
{
u32 reg0, reg1, tsf32l;
+ struct ieee80211_channel *ch;
struct pulse_event pe;
u64 tsf64;
u8 rssi, width;
@@ -2532,6 +2533,15 @@ static void ath10k_dfs_radar_report(struct ath10k *ar,
if (!ar->dfs_detector)
return;
+ spin_lock_bh(&ar->data_lock);
+ ch = ar->rx_channel;
+ spin_unlock_bh(&ar->data_lock);
+
+ if (!ch) {
+ ath10k_warn(ar, "failed to derive channel for radar pulse, treating as radar\n");
+ goto radar_detected;
+ }
+
/* report event to DFS pattern detector */
tsf32l = __le32_to_cpu(phyerr->tsf_timestamp);
tsf64 = tsf & (~0xFFFFFFFFULL);
@@ -2547,7 +2557,7 @@ static void ath10k_dfs_radar_report(struct ath10k *ar,
rssi = 0;
pe.ts = tsf64;
- pe.freq = ar->hw->conf.chandef.chan->center_freq;
+ pe.freq = ch->center_freq;
pe.width = width;
pe.rssi = rssi;
@@ -2563,6 +2573,7 @@ static void ath10k_dfs_radar_report(struct ath10k *ar,
return;
}
+radar_detected:
ath10k_dbg(ar, ATH10K_DBG_REGULATORY, "dfs radar detected\n");
ATH10K_DFS_STAT_INC(ar, radar_detected);
--
1.8.5.3
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH v2 2/7] ath10k: implement chanctx API
@ 2015-01-30 12:31 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 12:31 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
The chanctx API will allow ath10k to support
multi-channel operation.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
Notes:
v2:
* prevent null deref in ath10k_peer_assoc_h_vht()
after rebasing to latest master branch
drivers/net/wireless/ath/ath10k/core.c | 1 +
drivers/net/wireless/ath/ath10k/core.h | 8 +
drivers/net/wireless/ath/ath10k/htt_rx.c | 87 ++++-
drivers/net/wireless/ath/ath10k/mac.c | 561 +++++++++++++++++++++++++++----
drivers/net/wireless/ath/ath10k/wmi.c | 13 +-
5 files changed, 592 insertions(+), 78 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 5e9e1a6..57f70327 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -1116,6 +1116,7 @@ int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode)
ar->free_vdev_map = (1LL << ar->max_num_vdevs) - 1;
+ INIT_LIST_HEAD(&ar->arctxs);
INIT_LIST_HEAD(&ar->arvifs);
return 0;
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index abb3203..cf7963d 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -260,6 +260,11 @@ struct ath10k_sta {
#endif
};
+struct ath10k_chanctx {
+ struct list_head list;
+ struct ieee80211_chanctx_conf conf;
+};
+
#define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ)
struct ath10k_vif {
@@ -277,6 +282,7 @@ struct ath10k_vif {
dma_addr_t beacon_paddr;
struct ath10k *ar;
+ struct ath10k_chanctx *arctx;
struct ieee80211_vif *vif;
bool is_started;
@@ -561,6 +567,7 @@ struct ath10k {
struct cfg80211_chan_def chandef;
unsigned long long free_vdev_map;
+ struct ath10k_vif *monitor_arvif;
bool monitor;
int monitor_vdev_id;
bool monitor_started;
@@ -590,6 +597,7 @@ struct ath10k {
/* protects shared structure data */
spinlock_t data_lock;
+ struct list_head arctxs;
struct list_head arvifs;
struct list_head peers;
wait_queue_head_t peer_mapping_wq;
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index c1da44f..b18aa8e 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -773,8 +773,74 @@ static void ath10k_htt_rx_h_rates(struct ath10k *ar,
}
}
+static struct ieee80211_channel *
+ath10k_htt_rx_h_peer_channel(struct ath10k *ar, struct htt_rx_desc *rxd)
+{
+ struct ath10k_peer *peer;
+ struct ath10k_vif *arvif;
+ u16 peer_id;
+
+ lockdep_assert_held(&ar->data_lock);
+
+ if (!rxd)
+ return NULL;
+
+ if (rxd->attention.flags &
+ __cpu_to_le32(RX_ATTENTION_FLAGS_PEER_IDX_INVALID))
+ return NULL;
+
+ if (!(rxd->msdu_end.info0 &
+ __cpu_to_le32(RX_MSDU_END_INFO0_FIRST_MSDU)))
+ return NULL;
+
+ peer_id = MS(__le32_to_cpu(rxd->mpdu_start.info0),
+ RX_MPDU_START_INFO0_PEER_IDX);
+
+ peer = ath10k_peer_find_by_id(ar, peer_id);
+ if (!peer)
+ return NULL;
+
+ arvif = ath10k_get_arvif(ar, peer->vdev_id);
+ if (WARN_ON_ONCE(!arvif->arctx))
+ return NULL;
+
+ if (WARN_ON_ONCE(!arvif->arctx))
+ return NULL;
+
+ return arvif->arctx->conf.def.chan;
+}
+
+static struct ieee80211_channel *
+ath10k_htt_rx_h_vdev_channel(struct ath10k *ar, u32 vdev_id)
+{
+ struct ath10k_vif *arvif;
+
+ lockdep_assert_held(&ar->data_lock);
+
+ list_for_each_entry(arvif, &ar->arvifs, list)
+ if (arvif->vdev_id == vdev_id && arvif->arctx)
+ return arvif->arctx->conf.def.chan;
+
+ return NULL;
+}
+
+static struct ieee80211_channel *
+ath10k_htt_rx_h_any_channel(struct ath10k *ar)
+{
+ struct ath10k_chanctx *arctx;
+
+ lockdep_assert_held(&ar->data_lock);
+
+ list_for_each_entry(arctx, &ar->arctxs, list)
+ return arctx->conf.def.chan;
+
+ return NULL;
+}
+
static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
- struct ieee80211_rx_status *status)
+ struct ieee80211_rx_status *status,
+ struct htt_rx_desc *rxd,
+ u32 vdev_id)
{
struct ieee80211_channel *ch;
@@ -782,6 +848,12 @@ static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
ch = ar->scan_channel;
if (!ch)
ch = ar->rx_channel;
+ if (!ch)
+ ch = ath10k_htt_rx_h_peer_channel(ar, rxd);
+ if (!ch)
+ ch = ath10k_htt_rx_h_vdev_channel(ar, vdev_id);
+ if (!ch)
+ ch = ath10k_htt_rx_h_any_channel(ar);
spin_unlock_bh(&ar->data_lock);
if (!ch)
@@ -819,7 +891,8 @@ static void ath10k_htt_rx_h_mactime(struct ath10k *ar,
static void ath10k_htt_rx_h_ppdu(struct ath10k *ar,
struct sk_buff_head *amsdu,
- struct ieee80211_rx_status *status)
+ struct ieee80211_rx_status *status,
+ u32 vdev_id)
{
struct sk_buff *first;
struct htt_rx_desc *rxd;
@@ -851,7 +924,7 @@ static void ath10k_htt_rx_h_ppdu(struct ath10k *ar,
status->flag |= RX_FLAG_NO_SIGNAL_VAL;
ath10k_htt_rx_h_signal(ar, status, rxd);
- ath10k_htt_rx_h_channel(ar, status);
+ ath10k_htt_rx_h_channel(ar, status, rxd, vdev_id);
ath10k_htt_rx_h_rates(ar, status, rxd);
}
@@ -1522,7 +1595,7 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
break;
}
- ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status);
+ ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status, 0xffff);
ath10k_htt_rx_h_unchain(ar, &amsdu, ret > 0);
ath10k_htt_rx_h_filter(ar, &amsdu, rx_status);
ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status);
@@ -1569,7 +1642,7 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
return;
}
- ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status);
+ ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status, 0xffff);
ath10k_htt_rx_h_filter(ar, &amsdu, rx_status);
ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status);
ath10k_htt_rx_h_deliver(ar, &amsdu, rx_status);
@@ -1796,7 +1869,7 @@ static void ath10k_htt_rx_h_rx_offload(struct ath10k *ar,
status->flag |= RX_FLAG_NO_SIGNAL_VAL;
ath10k_htt_rx_h_rx_offload_prot(status, msdu);
- ath10k_htt_rx_h_channel(ar, status);
+ ath10k_htt_rx_h_channel(ar, status, NULL, rx->vdev_id);
ath10k_process_rx(ar, status, msdu);
}
}
@@ -1869,7 +1942,7 @@ static void ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb)
* better to report something than nothing though. This
* should still give an idea about rx rate to the user.
*/
- ath10k_htt_rx_h_ppdu(ar, &amsdu, status);
+ ath10k_htt_rx_h_ppdu(ar, &amsdu, status, vdev_id);
ath10k_htt_rx_h_filter(ar, &amsdu, status);
ath10k_htt_rx_h_mpdu(ar, &amsdu, status);
ath10k_htt_rx_h_deliver(ar, &amsdu, status);
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 15e47f4..e099479 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -751,13 +751,32 @@ static int ath10k_monitor_stop(struct ath10k *ar)
static int ath10k_monitor_recalc(struct ath10k *ar)
{
+ struct ath10k_chanctx *arctx;
bool should_start;
+ int num_ctx;
lockdep_assert_held(&ar->conf_mutex);
- should_start = ar->monitor ||
- ar->filter_flags & FIF_PROMISC_IN_BSS ||
- test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
+ should_start = (ar->monitor ||
+ ar->filter_flags & FIF_PROMISC_IN_BSS ||
+ test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags)) &&
+ !list_empty(&ar->arctxs) &&
+ !ar->monitor_arvif;
+
+ num_ctx = 0;
+ list_for_each_entry(arctx, &ar->arctxs, list)
+ num_ctx++;
+
+ /* FIXME: It remains unclear if CAC on multi-channel will work this
+ * way. Multi-channel DFS must be revised.
+ *
+ * FIXME: Hopefully 2x STA on different channels + monitor interface
+ * will simply setup something like a promiscuous mode.
+ */
+ if (WARN_ON(should_start &&
+ test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags) &&
+ num_ctx > 1))
+ return -EPERM;
ath10k_dbg(ar, ATH10K_DBG_MAC,
"mac monitor recalc started? %d should? %d\n",
@@ -829,6 +848,19 @@ static int ath10k_stop_cac(struct ath10k *ar)
return 0;
}
+static bool ath10k_mac_has_radar_enabled(struct ath10k *ar)
+{
+ struct ath10k_chanctx *arctx;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ list_for_each_entry(arctx, &ar->arctxs, list)
+ if (arctx->conf.radar_enabled)
+ return true;
+
+ return false;
+}
+
static void ath10k_recalc_radar_detection(struct ath10k *ar)
{
int ret;
@@ -837,7 +869,7 @@ static void ath10k_recalc_radar_detection(struct ath10k *ar)
ath10k_stop_cac(ar);
- if (!ar->radar_enabled)
+ if (!ath10k_mac_has_radar_enabled(ar))
return;
if (ar->num_started_vdevs > 0)
@@ -858,12 +890,17 @@ static void ath10k_recalc_radar_detection(struct ath10k *ar)
static int ath10k_vdev_start_restart(struct ath10k_vif *arvif, bool restart)
{
struct ath10k *ar = arvif->ar;
- struct cfg80211_chan_def *chandef = &ar->chandef;
+ struct cfg80211_chan_def *chandef;
struct wmi_vdev_start_request_arg arg = {};
int ret = 0;
lockdep_assert_held(&ar->conf_mutex);
+ if (WARN_ON(!arvif->arctx))
+ return -EINVAL;
+
+ chandef = &arvif->arctx->conf.def;
+
reinit_completion(&ar->vdev_setup_done);
arg.vdev_id = arvif->vdev_id;
@@ -1101,6 +1138,76 @@ static int ath10k_mac_setup_prb_tmpl(struct ath10k_vif *arvif)
return 0;
}
+static int ath10k_mac_vif_fix_hidden_ssid(struct ath10k_vif *arvif)
+{
+ struct ath10k *ar = arvif->ar;
+ int ret;
+
+ /* When originally vdev is started during assign_vif_chanctx() some
+ * information is missing, notably SSID. Firmware revisions with beacon
+ * offloading require the SSID to be provided during vdev (re)start to
+ * handle hidden SSID properly.
+ *
+ * Vdev restart must be done after vdev has been both started and
+ * upped. Otherwise some firmware revisions (at least 10.2) fail to
+ * deliver vdev restart response event causing timeouts during vdev
+ * syncing in ath10k.
+ *
+ * Note: The vdev down/up and template reinstallation could be skipped
+ * since only wmi-tlv firmware are known to have beacon offload and
+ * wmi-tlv doesn't seem to misbehave like 10.2 wrt vdev restart
+ * response delivery. It's probably more robust to keep it as is.
+ */
+ if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
+ return 0;
+
+ if (WARN_ON(!arvif->is_started))
+ return -EINVAL;
+
+ if (WARN_ON(!arvif->is_up))
+ return -EINVAL;
+
+ ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
+ if (ret) {
+ ath10k_warn(ar, "failed to bring down ap vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ return ret;
+ }
+
+ /* Vdev down reset beacon & presp templates. Reinstall them. Otherwise
+ * firmware will crash upon vdev up.
+ */
+
+ ret = ath10k_mac_setup_bcn_tmpl(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to update beacon template: %d\n", ret);
+ return ret;
+ }
+
+ ret = ath10k_mac_setup_prb_tmpl(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to update presp template: %d\n", ret);
+ return ret;
+ }
+
+ ret = ath10k_vdev_restart(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to restart ap vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ return ret;
+ }
+
+ ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
+ arvif->bssid);
+ if (ret) {
+ ath10k_warn(ar, "failed to bring up ap vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
static void ath10k_control_beaconing(struct ath10k_vif *arvif,
struct ieee80211_bss_conf *info)
{
@@ -1110,9 +1217,11 @@ static void ath10k_control_beaconing(struct ath10k_vif *arvif,
lockdep_assert_held(&arvif->ar->conf_mutex);
if (!info->enable_beacon) {
- ath10k_vdev_stop(arvif);
+ ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
+ if (ret)
+ ath10k_warn(ar, "failed to down vdev_id %i: %d\n",
+ arvif->vdev_id, ret);
- arvif->is_started = false;
arvif->is_up = false;
spin_lock_bh(&arvif->ar->data_lock);
@@ -1124,10 +1233,6 @@ static void ath10k_control_beaconing(struct ath10k_vif *arvif,
arvif->tx_seq_no = 0x1000;
- ret = ath10k_vdev_start(arvif);
- if (ret)
- return;
-
arvif->aid = 0;
ether_addr_copy(arvif->bssid, info->bssid);
@@ -1136,13 +1241,18 @@ static void ath10k_control_beaconing(struct ath10k_vif *arvif,
if (ret) {
ath10k_warn(ar, "failed to bring up vdev %d: %i\n",
arvif->vdev_id, ret);
- ath10k_vdev_stop(arvif);
return;
}
- arvif->is_started = true;
arvif->is_up = true;
+ ret = ath10k_mac_vif_fix_hidden_ssid(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to fix hidden ssid for vdev %i, expect trouble: %d\n",
+ arvif->vdev_id, ret);
+ return;
+ }
+
ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d up\n", arvif->vdev_id);
}
@@ -1362,13 +1472,17 @@ static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
struct wmi_peer_assoc_complete_arg *arg)
{
struct ieee80211_bss_conf *info = &vif->bss_conf;
+ struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
struct cfg80211_bss *bss;
const u8 *rsnie = NULL;
const u8 *wpaie = NULL;
lockdep_assert_held(&ar->conf_mutex);
- bss = cfg80211_get_bss(ar->hw->wiphy, ar->hw->conf.chandef.chan,
+ if (WARN_ON(!arvif->arctx))
+ return;
+
+ bss = cfg80211_get_bss(ar->hw->wiphy, arvif->arctx->conf.def.chan,
info->bssid, NULL, 0, 0, 0);
if (bss) {
const struct cfg80211_bss_ies *ies;
@@ -1399,10 +1513,12 @@ static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
}
static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
+ struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct wmi_peer_assoc_complete_arg *arg)
{
struct wmi_rate_set_arg *rateset = &arg->peer_legacy_rates;
+ struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
const struct ieee80211_supported_band *sband;
const struct ieee80211_rate *rates;
u32 ratemask;
@@ -1410,8 +1526,11 @@ static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
lockdep_assert_held(&ar->conf_mutex);
- sband = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band];
- ratemask = sta->supp_rates[ar->hw->conf.chandef.chan->band];
+ if (WARN_ON(!arvif->arctx))
+ return;
+
+ sband = ar->hw->wiphy->bands[arvif->arctx->conf.def.chan->band];
+ ratemask = sta->supp_rates[arvif->arctx->conf.def.chan->band];
rates = sband->bitrates;
rateset->num_rates = 0;
@@ -1576,18 +1695,24 @@ static int ath10k_peer_assoc_qos_ap(struct ath10k *ar,
}
static void ath10k_peer_assoc_h_vht(struct ath10k *ar,
+ struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct wmi_peer_assoc_complete_arg *arg)
{
const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
+ struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+ struct ath10k_chanctx *arctx = arvif->arctx;
u8 ampdu_factor;
+ if (WARN_ON(!arctx))
+ return;
+
if (!vht_cap->vht_supported)
return;
arg->peer_flags |= WMI_PEER_VHT;
- if (ar->hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ)
+ if (arctx->conf.def.chan->band == IEEE80211_BAND_2GHZ)
arg->peer_flags |= WMI_PEER_VHT_2G;
arg->peer_vht_caps = vht_cap->cap;
@@ -1664,9 +1789,13 @@ static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
struct ieee80211_sta *sta,
struct wmi_peer_assoc_complete_arg *arg)
{
+ struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
enum wmi_phy_mode phymode = MODE_UNKNOWN;
- switch (ar->hw->conf.chandef.chan->band) {
+ if (WARN_ON(!arvif->arctx))
+ return;
+
+ switch (arvif->arctx->conf.def.chan->band) {
case IEEE80211_BAND_2GHZ:
if (sta->vht_cap.vht_supported) {
if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
@@ -1728,9 +1857,9 @@ static int ath10k_peer_assoc_prepare(struct ath10k *ar,
ath10k_peer_assoc_h_basic(ar, vif, sta, arg);
ath10k_peer_assoc_h_crypto(ar, vif, arg);
- ath10k_peer_assoc_h_rates(ar, sta, arg);
+ ath10k_peer_assoc_h_rates(ar, vif, sta, arg);
ath10k_peer_assoc_h_ht(ar, sta, arg);
- ath10k_peer_assoc_h_vht(ar, sta, arg);
+ ath10k_peer_assoc_h_vht(ar, vif, sta, arg);
ath10k_peer_assoc_h_qos(ar, vif, sta, arg);
ath10k_peer_assoc_h_phymode(ar, vif, sta, arg);
@@ -2676,6 +2805,7 @@ void ath10k_halt(struct ath10k *ar)
clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
ar->filter_flags = 0;
ar->monitor = false;
+ ar->monitor_arvif = NULL;
if (ar->monitor_started)
ath10k_monitor_stop(ar);
@@ -2929,7 +3059,7 @@ static const char *chandef_get_width(enum nl80211_chan_width width)
return "?";
}
-static void ath10k_config_chan(struct ath10k *ar)
+static void ath10k_mac_chan_reconfigure(struct ath10k *ar)
{
struct ath10k_vif *arvif;
int ret;
@@ -3062,26 +3192,6 @@ static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
mutex_lock(&ar->conf_mutex);
- if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
- ath10k_dbg(ar, ATH10K_DBG_MAC,
- "mac config channel %dMHz flags 0x%x radar %d\n",
- conf->chandef.chan->center_freq,
- conf->chandef.chan->flags,
- conf->radar_enabled);
-
- spin_lock_bh(&ar->data_lock);
- ar->rx_channel = conf->chandef.chan;
- spin_unlock_bh(&ar->data_lock);
-
- ar->radar_enabled = conf->radar_enabled;
- ath10k_recalc_radar_detection(ar);
-
- if (!cfg80211_chandef_identical(&ar->chandef, &conf->chandef)) {
- ar->chandef = conf->chandef;
- ath10k_config_chan(ar);
- }
- }
-
if (changed & IEEE80211_CONF_CHANGE_PS)
ath10k_config_ps(ar);
@@ -3329,6 +3439,15 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
goto err_peer_delete;
}
+ if (vif->type == NL80211_IFTYPE_MONITOR) {
+ ar->monitor_arvif = arvif;
+ ret = ath10k_monitor_recalc(ar);
+ if (ret) {
+ ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
+ goto err_peer_delete;
+ }
+ }
+
mutex_unlock(&ar->conf_mutex);
return 0;
@@ -3395,6 +3514,13 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
ath10k_peer_cleanup(ar, arvif->vdev_id);
+ if (vif->type == NL80211_IFTYPE_MONITOR) {
+ ar->monitor_arvif = NULL;
+ ret = ath10k_monitor_recalc(ar);
+ if (ret)
+ ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
+ }
+
mutex_unlock(&ar->conf_mutex);
}
@@ -3958,22 +4084,6 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
ath10k_mac_dec_num_stations(arvif);
goto exit;
}
-
- if (vif->type == NL80211_IFTYPE_STATION) {
- WARN_ON(arvif->is_started);
-
- ret = ath10k_vdev_start(arvif);
- if (ret) {
- ath10k_warn(ar, "failed to start vdev %i: %d\n",
- arvif->vdev_id, ret);
- WARN_ON(ath10k_peer_delete(ar, arvif->vdev_id,
- sta->addr));
- ath10k_mac_dec_num_stations(arvif);
- goto exit;
- }
-
- arvif->is_started = true;
- }
} else if ((old_state == IEEE80211_STA_NONE &&
new_state == IEEE80211_STA_NOTEXIST)) {
/*
@@ -3982,18 +4092,6 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
ath10k_dbg(ar, ATH10K_DBG_MAC,
"mac vdev %d peer delete %pM (sta gone)\n",
arvif->vdev_id, sta->addr);
-
- if (vif->type == NL80211_IFTYPE_STATION) {
- WARN_ON(!arvif->is_started);
-
- ret = ath10k_vdev_stop(arvif);
- if (ret)
- ath10k_warn(ar, "failed to stop vdev %i: %d\n",
- arvif->vdev_id, ret);
-
- arvif->is_started = false;
- }
-
ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
if (ret)
ath10k_warn(ar, "failed to delete peer %pM for vdev %d: %i\n",
@@ -4812,14 +4910,19 @@ static int ath10k_set_bitrate_mask(struct ieee80211_hw *hw,
{
struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
struct ath10k *ar = arvif->ar;
- enum ieee80211_band band = ar->hw->conf.chandef.chan->band;
+ enum ieee80211_band band;
u8 fixed_rate = WMI_FIXED_RATE_NONE;
u8 fixed_nss = ar->num_rf_chains;
u8 force_sgi;
+ if (!arvif->arctx)
+ return -EPERM;
+
if (ar->cfg_tx_chainmask)
fixed_nss = get_nss_from_chainmask(ar->cfg_tx_chainmask);
+ band = arvif->arctx->conf.def.chan->band;
+
force_sgi = mask->control[band].gi;
if (force_sgi == NL80211_TXRATE_FORCE_LGI)
return -EINVAL;
@@ -4956,6 +5059,316 @@ static int ath10k_ampdu_action(struct ieee80211_hw *hw,
return -EINVAL;
}
+static void
+ath10k_mac_update_rx_channel(struct ath10k *ar)
+{
+ struct ath10k_chanctx *arctx;
+ struct cfg80211_chan_def *def = NULL;
+ int num = 0;
+
+ /* Both locks are required because ar->rx_channel is modified. This
+ * allows readers to hold either lock.
+ */
+ lockdep_assert_held(&ar->conf_mutex);
+ lockdep_assert_held(&ar->data_lock);
+
+ /* FIXME: Sort of an optimization and a workaround. Peers and vifs are
+ * on a linked list now. Doing a lookup peer -> vif -> chanctx for each
+ * ppdu on Rx may reduce performance on low-end systems. It should be
+ * possible to make tables/hashmaps to speed the lookup up (be vary of
+ * cpu data cache lines though regarding sizes) but to keep the initial
+ * implementation simple and less intrusive fallback to the slow lookup
+ * only for multi-channel cases. Single-channel cases will remain to
+ * use the old channel derival and thus performance should not be
+ * affected much.
+ */
+ list_for_each_entry(arctx, &ar->arctxs, list) {
+ def = &arctx->conf.def;
+ ++num;
+ }
+
+ if (num == 1) {
+ ar->rx_channel = def->chan;
+ ar->chandef = *def;
+ } else {
+ ar->rx_channel = NULL;
+ }
+}
+
+static void
+ath10k_mac_chan_ctx_init(struct ath10k *ar,
+ struct ath10k_chanctx *arctx,
+ struct ieee80211_chanctx_conf *conf)
+{
+ lockdep_assert_held(&ar->conf_mutex);
+ lockdep_assert_held(&ar->data_lock);
+
+ memset(arctx, 0, sizeof(*arctx));
+
+ INIT_LIST_HEAD(&arctx->list);
+ list_add(&arctx->list, &ar->arctxs);
+
+ arctx->conf = *conf;
+}
+
+static int
+ath10k_mac_op_add_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_chanctx_conf *ctx)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx add freq %hu width %d ptr %p\n",
+ ctx->def.chan->center_freq, ctx->def.width, ctx);
+
+ mutex_lock(&ar->conf_mutex);
+
+ spin_lock_bh(&ar->data_lock);
+ ath10k_mac_chan_ctx_init(ar, arctx, ctx);
+ ath10k_mac_update_rx_channel(ar);
+ spin_unlock_bh(&ar->data_lock);
+
+ ath10k_recalc_radar_detection(ar);
+ ath10k_monitor_recalc(ar);
+
+ mutex_unlock(&ar->conf_mutex);
+
+ return 0;
+}
+
+static void
+ath10k_mac_op_remove_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_chanctx_conf *ctx)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+ struct ath10k_vif *arvif;
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx remove freq %hu width %d ptr %p\n",
+ ctx->def.chan->center_freq, ctx->def.width, ctx);
+
+ mutex_lock(&ar->conf_mutex);
+
+ spin_lock_bh(&ar->data_lock);
+ list_del(&arctx->list);
+ list_for_each_entry(arvif, &ar->arvifs, list)
+ WARN(arvif->arctx == arctx,
+ "trying to remove chanctx which is bound to vdev_id %i\n",
+ arvif->vdev_id);
+ ath10k_mac_update_rx_channel(ar);
+ spin_unlock_bh(&ar->data_lock);
+
+ ath10k_recalc_radar_detection(ar);
+ ath10k_monitor_recalc(ar);
+
+ mutex_unlock(&ar->conf_mutex);
+}
+
+static void
+ath10k_mac_op_change_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_chanctx_conf *ctx,
+ u32 changed)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx change freq %hu->%hu width %d->%d ptr %p changed %x\n",
+ arctx->conf.def.chan->center_freq,
+ ctx->def.chan->center_freq,
+ arctx->conf.def.width, ctx->def.width,
+ ctx, changed);
+
+ /* This shouldn't really happen because channel switching should use
+ * switch_vif_chanctx().
+ */
+ if (WARN_ON(changed & IEEE80211_CHANCTX_CHANGE_CHANNEL))
+ goto unlock;
+
+ spin_lock_bh(&ar->data_lock);
+ arctx->conf = *ctx;
+ spin_unlock_bh(&ar->data_lock);
+
+ ath10k_recalc_radar_detection(ar);
+
+ /* FIXME: How to configure Rx chains properly? */
+
+ /* No other actions are actually necessary. Firmware maintains channel
+ * definitions per vdev internally and there's no host-side channel
+ * context abstraction to configure, e.g. channel width.
+ */
+
+unlock:
+ mutex_unlock(&ar->conf_mutex);
+}
+
+static int
+ath10k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_chanctx_conf *ctx)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+ struct ath10k_vif *arvif = (void *)vif->drv_priv;
+ int ret;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx assign ptr %p vdev_id %i\n",
+ ctx, arvif->vdev_id);
+
+ if (WARN_ON(arvif->is_started)) {
+ mutex_unlock(&ar->conf_mutex);
+ return -EBUSY;
+ }
+
+ spin_lock_bh(&ar->data_lock);
+ if (WARN_ON(arvif->arctx)) {
+ spin_unlock_bh(&ar->data_lock);
+ mutex_unlock(&ar->conf_mutex);
+ return -EALREADY;
+ }
+ arvif->arctx = arctx;
+ spin_unlock_bh(&ar->data_lock);
+
+ ret = ath10k_vdev_start(arvif);
+ if (ret) {
+ ath10k_warn(ar, "failed to start vdev %i addr %pM on freq %d: %d\n",
+ arvif->vdev_id, vif->addr,
+ arctx->conf.def.chan->center_freq, ret);
+ goto err;
+ }
+
+ arvif->is_started = true;
+
+ if (vif->type == NL80211_IFTYPE_MONITOR) {
+ ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, 0, vif->addr);
+ if (ret) {
+ ath10k_warn(ar, "failed to up monitor vdev %i: %d\n",
+ arvif->vdev_id, ret);
+ goto err_stop;
+ }
+
+ arvif->is_up = true;
+ }
+
+ mutex_unlock(&ar->conf_mutex);
+ return 0;
+
+err_stop:
+ ath10k_vdev_stop(arvif);
+ arvif->is_started = false;
+
+err:
+ spin_lock_bh(&ar->data_lock);
+ arvif->arctx = NULL;
+ spin_unlock_bh(&ar->data_lock);
+
+ mutex_unlock(&ar->conf_mutex);
+ return ret;
+}
+
+static void
+ath10k_mac_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_chanctx_conf *ctx)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_chanctx *arctx = (void *)ctx->drv_priv;
+ struct ath10k_vif *arvif = (void *)vif->drv_priv;
+ int ret;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx unassign ptr %p vdev_id %i\n",
+ ctx, arvif->vdev_id);
+
+ spin_lock_bh(&ar->data_lock);
+ WARN_ON(!arvif->arctx);
+ WARN_ON(arvif->arctx != arctx);
+ arvif->arctx = NULL;
+ spin_unlock_bh(&ar->data_lock);
+
+ WARN_ON(!arvif->is_started);
+
+ if (vif->type == NL80211_IFTYPE_MONITOR) {
+ WARN_ON(!arvif->is_up);
+
+ ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
+ if (ret)
+ ath10k_warn(ar, "failed to down monitor vdev %i: %d\n",
+ arvif->vdev_id, ret);
+
+ arvif->is_up = false;
+ }
+
+ ret = ath10k_vdev_stop(arvif);
+ if (ret)
+ ath10k_warn(ar, "failed to stop vdev %i: %d\n",
+ arvif->vdev_id, ret);
+
+ arvif->is_started = false;
+
+ mutex_unlock(&ar->conf_mutex);
+}
+
+static int
+ath10k_mac_op_switch_vif_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_vif_chanctx_switch *vifs,
+ int n_vifs,
+ enum ieee80211_chanctx_switch_mode mode)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_vif *arvif;
+ struct ath10k_chanctx *arctx_new, *arctx_old;
+ int i;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx switch n_vifs %d mode %d\n",
+ n_vifs, mode);
+
+ spin_lock_bh(&ar->data_lock);
+ for (i = 0; i < n_vifs; i++) {
+ arvif = ath10k_vif_to_arvif(vifs[i].vif);
+ arctx_new = (void *)vifs[i].new_ctx->drv_priv;
+ arctx_old = (void *)vifs[i].old_ctx->drv_priv;
+
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac chanctx switch vdev_id %i freq %hu->%hu width %d->%d ptr %p->%p\n",
+ arvif->vdev_id,
+ vifs[i].old_ctx->def.chan->center_freq,
+ vifs[i].new_ctx->def.chan->center_freq,
+ vifs[i].old_ctx->def.width,
+ vifs[i].new_ctx->def.width,
+ arctx_old, arctx_new);
+
+ if (mode == CHANCTX_SWMODE_SWAP_CONTEXTS) {
+ list_del(&arctx_old->list);
+ ath10k_mac_chan_ctx_init(ar, arctx_new,
+ vifs[i].new_ctx);
+ }
+
+ arvif->arctx = arctx_new;
+ arvif->arctx->conf = *vifs[i].new_ctx;
+ }
+ ath10k_mac_update_rx_channel(ar);
+ spin_unlock_bh(&ar->data_lock);
+
+ /* FIXME: Reconfigure only affected vifs */
+ ath10k_mac_chan_reconfigure(ar);
+
+ mutex_unlock(&ar->conf_mutex);
+ return 0;
+}
+
static const struct ieee80211_ops ath10k_ops = {
.tx = ath10k_tx,
.start = ath10k_start,
@@ -4986,6 +5399,12 @@ static const struct ieee80211_ops ath10k_ops = {
.get_et_sset_count = ath10k_debug_get_et_sset_count,
.get_et_stats = ath10k_debug_get_et_stats,
.get_et_strings = ath10k_debug_get_et_strings,
+ .add_chanctx = ath10k_mac_op_add_chanctx,
+ .remove_chanctx = ath10k_mac_op_remove_chanctx,
+ .change_chanctx = ath10k_mac_op_change_chanctx,
+ .assign_vif_chanctx = ath10k_mac_op_assign_vif_chanctx,
+ .unassign_vif_chanctx = ath10k_mac_op_unassign_vif_chanctx,
+ .switch_vif_chanctx = ath10k_mac_op_switch_vif_chanctx,
CFG80211_TESTMODE_CMD(ath10k_tm_cmd)
@@ -5357,6 +5776,7 @@ int ath10k_mac_register(struct ath10k *ar)
IEEE80211_HW_REPORTS_TX_ACK_STATUS |
IEEE80211_HW_HAS_RATE_CONTROL |
IEEE80211_HW_AP_LINK_PS |
+ IEEE80211_HW_WANT_MONITOR_VIF |
IEEE80211_HW_SPECTRUM_MGMT;
ar->hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS;
@@ -5374,6 +5794,7 @@ int ath10k_mac_register(struct ath10k *ar)
ar->hw->vif_data_size = sizeof(struct ath10k_vif);
ar->hw->sta_data_size = sizeof(struct ath10k_sta);
+ ar->hw->chanctx_data_size = sizeof(struct ath10k_chanctx);
ar->hw->max_listen_interval = ATH10K_MAX_HW_LISTEN_INTERVAL;
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 97ee2e9..0b49ec4 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -2504,6 +2504,7 @@ static void ath10k_dfs_radar_report(struct ath10k *ar,
u64 tsf)
{
u32 reg0, reg1, tsf32l;
+ struct ieee80211_channel *ch;
struct pulse_event pe;
u64 tsf64;
u8 rssi, width;
@@ -2532,6 +2533,15 @@ static void ath10k_dfs_radar_report(struct ath10k *ar,
if (!ar->dfs_detector)
return;
+ spin_lock_bh(&ar->data_lock);
+ ch = ar->rx_channel;
+ spin_unlock_bh(&ar->data_lock);
+
+ if (!ch) {
+ ath10k_warn(ar, "failed to derive channel for radar pulse, treating as radar\n");
+ goto radar_detected;
+ }
+
/* report event to DFS pattern detector */
tsf32l = __le32_to_cpu(phyerr->tsf_timestamp);
tsf64 = tsf & (~0xFFFFFFFFULL);
@@ -2547,7 +2557,7 @@ static void ath10k_dfs_radar_report(struct ath10k *ar,
rssi = 0;
pe.ts = tsf64;
- pe.freq = ar->hw->conf.chandef.chan->center_freq;
+ pe.freq = ch->center_freq;
pe.width = width;
pe.rssi = rssi;
@@ -2563,6 +2573,7 @@ static void ath10k_dfs_radar_report(struct ath10k *ar,
return;
}
+radar_detected:
ath10k_dbg(ar, ATH10K_DBG_REGULATORY, "dfs radar detected\n");
ATH10K_DFS_STAT_INC(ar, radar_detected);
--
1.8.5.3
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH v2 3/7] ath10k: implement adaptive qcs command
2015-01-30 12:31 ` Michal Kazior
@ 2015-01-30 12:31 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 12:31 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
This command will be used to configure
multi-channel scheduler in firmware.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/wmi-ops.h | 16 ++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 30 ++++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi-tlv.h | 4 ++++
drivers/net/wireless/ath/ath10k/wmi.c | 3 +++
drivers/net/wireless/ath/ath10k/wmi.h | 1 +
5 files changed, 54 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/wmi-ops.h b/drivers/net/wireless/ath/ath10k/wmi-ops.h
index 058f88b..cf9d34f 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-ops.h
+++ b/drivers/net/wireless/ath/ath10k/wmi-ops.h
@@ -145,6 +145,7 @@ struct wmi_ops {
u32 num_ac);
struct sk_buff *(*gen_sta_keepalive)(struct ath10k *ar,
const struct wmi_sta_keepalive_arg *arg);
+ struct sk_buff *(*gen_adaptive_qcs)(struct ath10k *ar, bool enable);
};
int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb, u32 cmd_id);
@@ -1054,4 +1055,19 @@ ath10k_wmi_sta_keepalive(struct ath10k *ar,
return ath10k_wmi_cmd_send(ar, skb, cmd_id);
}
+static inline int
+ath10k_wmi_adaptive_qcs(struct ath10k *ar, bool enable)
+{
+ struct sk_buff *skb;
+
+ if (!ar->wmi.ops->gen_adaptive_qcs)
+ return -EOPNOTSUPP;
+
+ skb = ar->wmi.ops->gen_adaptive_qcs(ar, enable);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
+
+ return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->adaptive_qcs_cmdid);
+}
+
#endif
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index ccafb69..0e36b34 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -2381,6 +2381,34 @@ ath10k_wmi_tlv_op_gen_p2p_go_bcn_ie(struct ath10k *ar, u32 vdev_id,
return skb;
}
+static struct sk_buff *
+ath10k_wmi_tlv_op_gen_adaptive_qcs(struct ath10k *ar, bool enable)
+{
+ struct wmi_tlv_adaptive_qcs *cmd;
+ struct wmi_tlv *tlv;
+ struct sk_buff *skb;
+ void *ptr;
+ size_t len;
+
+ len = sizeof(*tlv) + sizeof(*cmd);
+ skb = ath10k_wmi_alloc_skb(ar, len);
+ if (!skb)
+ return ERR_PTR(-ENOMEM);
+
+ ptr = (void *)skb->data;
+ tlv = ptr;
+ tlv->tag = __cpu_to_le16(WMI_TLV_TAG_STRUCT_RESMGR_ADAPTIVE_OCS_CMD);
+ tlv->len = __cpu_to_le16(sizeof(*cmd));
+ cmd = (void *)tlv->value;
+ cmd->enable = __cpu_to_le32(enable ? 1 : 0);
+
+ ptr += sizeof(*tlv);
+ ptr += sizeof(*cmd);
+
+ ath10k_dbg(ar, ATH10K_DBG_WMI, "wmi tlv adaptive qcs %d\n", enable);
+ return skb;
+}
+
/****************/
/* TLV mappings */
/****************/
@@ -2505,6 +2533,7 @@ static struct wmi_cmd_map wmi_tlv_cmd_map = {
.gpio_output_cmdid = WMI_TLV_GPIO_OUTPUT_CMDID,
.pdev_get_temperature_cmdid = WMI_TLV_CMD_UNSUPPORTED,
.vdev_set_wmm_params_cmdid = WMI_TLV_VDEV_SET_WMM_PARAMS_CMDID,
+ .adaptive_qcs_cmdid = WMI_TLV_RESMGR_ADAPTIVE_OCS_CMDID,
};
static struct wmi_pdev_param_map wmi_tlv_pdev_param_map = {
@@ -2677,6 +2706,7 @@ static const struct wmi_ops wmi_tlv_ops = {
.gen_p2p_go_bcn_ie = ath10k_wmi_tlv_op_gen_p2p_go_bcn_ie,
.gen_vdev_sta_uapsd = ath10k_wmi_tlv_op_gen_vdev_sta_uapsd,
.gen_sta_keepalive = ath10k_wmi_tlv_op_gen_sta_keepalive,
+ .gen_adaptive_qcs = ath10k_wmi_tlv_op_gen_adaptive_qcs,
};
/************/
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.h b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
index de68fe7..a05952a 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.h
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
@@ -1439,6 +1439,10 @@ struct wmi_tlv_sta_keepalive_cmd {
__le32 interval; /* in seconds */
} __packed;
+struct wmi_tlv_adaptive_qcs {
+ __le32 enable;
+} __packed;
+
void ath10k_wmi_tlv_attach(struct ath10k *ar);
#endif
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 0b49ec4..8966848 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -5224,6 +5224,7 @@ static const struct wmi_ops wmi_ops = {
/* .gen_bcn_tmpl not implemented */
/* .gen_prb_tmpl not implemented */
/* .gen_p2p_go_bcn_ie not implemented */
+ /* .gen_adaptive_qcs not implemented */
};
static const struct wmi_ops wmi_10_1_ops = {
@@ -5286,6 +5287,7 @@ static const struct wmi_ops wmi_10_1_ops = {
/* .gen_bcn_tmpl not implemented */
/* .gen_prb_tmpl not implemented */
/* .gen_p2p_go_bcn_ie not implemented */
+ /* .gen_adaptive_qcs not implemented */
};
static const struct wmi_ops wmi_10_2_ops = {
@@ -5408,6 +5410,7 @@ static const struct wmi_ops wmi_10_2_4_ops = {
/* .gen_bcn_tmpl not implemented */
/* .gen_prb_tmpl not implemented */
/* .gen_p2p_go_bcn_ie not implemented */
+ /* .gen_adaptive_qcs not implemented */
};
int ath10k_wmi_attach(struct ath10k *ar)
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 20ce360..69c7cf4 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -552,6 +552,7 @@ struct wmi_cmd_map {
u32 gpio_output_cmdid;
u32 pdev_get_temperature_cmdid;
u32 vdev_set_wmm_params_cmdid;
+ u32 adaptive_qcs_cmdid;
};
/*
--
1.8.5.3
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH v2 3/7] ath10k: implement adaptive qcs command
@ 2015-01-30 12:31 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 12:31 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
This command will be used to configure
multi-channel scheduler in firmware.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/wmi-ops.h | 16 ++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 30 ++++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi-tlv.h | 4 ++++
drivers/net/wireless/ath/ath10k/wmi.c | 3 +++
drivers/net/wireless/ath/ath10k/wmi.h | 1 +
5 files changed, 54 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/wmi-ops.h b/drivers/net/wireless/ath/ath10k/wmi-ops.h
index 058f88b..cf9d34f 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-ops.h
+++ b/drivers/net/wireless/ath/ath10k/wmi-ops.h
@@ -145,6 +145,7 @@ struct wmi_ops {
u32 num_ac);
struct sk_buff *(*gen_sta_keepalive)(struct ath10k *ar,
const struct wmi_sta_keepalive_arg *arg);
+ struct sk_buff *(*gen_adaptive_qcs)(struct ath10k *ar, bool enable);
};
int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb, u32 cmd_id);
@@ -1054,4 +1055,19 @@ ath10k_wmi_sta_keepalive(struct ath10k *ar,
return ath10k_wmi_cmd_send(ar, skb, cmd_id);
}
+static inline int
+ath10k_wmi_adaptive_qcs(struct ath10k *ar, bool enable)
+{
+ struct sk_buff *skb;
+
+ if (!ar->wmi.ops->gen_adaptive_qcs)
+ return -EOPNOTSUPP;
+
+ skb = ar->wmi.ops->gen_adaptive_qcs(ar, enable);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
+
+ return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->adaptive_qcs_cmdid);
+}
+
#endif
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index ccafb69..0e36b34 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -2381,6 +2381,34 @@ ath10k_wmi_tlv_op_gen_p2p_go_bcn_ie(struct ath10k *ar, u32 vdev_id,
return skb;
}
+static struct sk_buff *
+ath10k_wmi_tlv_op_gen_adaptive_qcs(struct ath10k *ar, bool enable)
+{
+ struct wmi_tlv_adaptive_qcs *cmd;
+ struct wmi_tlv *tlv;
+ struct sk_buff *skb;
+ void *ptr;
+ size_t len;
+
+ len = sizeof(*tlv) + sizeof(*cmd);
+ skb = ath10k_wmi_alloc_skb(ar, len);
+ if (!skb)
+ return ERR_PTR(-ENOMEM);
+
+ ptr = (void *)skb->data;
+ tlv = ptr;
+ tlv->tag = __cpu_to_le16(WMI_TLV_TAG_STRUCT_RESMGR_ADAPTIVE_OCS_CMD);
+ tlv->len = __cpu_to_le16(sizeof(*cmd));
+ cmd = (void *)tlv->value;
+ cmd->enable = __cpu_to_le32(enable ? 1 : 0);
+
+ ptr += sizeof(*tlv);
+ ptr += sizeof(*cmd);
+
+ ath10k_dbg(ar, ATH10K_DBG_WMI, "wmi tlv adaptive qcs %d\n", enable);
+ return skb;
+}
+
/****************/
/* TLV mappings */
/****************/
@@ -2505,6 +2533,7 @@ static struct wmi_cmd_map wmi_tlv_cmd_map = {
.gpio_output_cmdid = WMI_TLV_GPIO_OUTPUT_CMDID,
.pdev_get_temperature_cmdid = WMI_TLV_CMD_UNSUPPORTED,
.vdev_set_wmm_params_cmdid = WMI_TLV_VDEV_SET_WMM_PARAMS_CMDID,
+ .adaptive_qcs_cmdid = WMI_TLV_RESMGR_ADAPTIVE_OCS_CMDID,
};
static struct wmi_pdev_param_map wmi_tlv_pdev_param_map = {
@@ -2677,6 +2706,7 @@ static const struct wmi_ops wmi_tlv_ops = {
.gen_p2p_go_bcn_ie = ath10k_wmi_tlv_op_gen_p2p_go_bcn_ie,
.gen_vdev_sta_uapsd = ath10k_wmi_tlv_op_gen_vdev_sta_uapsd,
.gen_sta_keepalive = ath10k_wmi_tlv_op_gen_sta_keepalive,
+ .gen_adaptive_qcs = ath10k_wmi_tlv_op_gen_adaptive_qcs,
};
/************/
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.h b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
index de68fe7..a05952a 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.h
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
@@ -1439,6 +1439,10 @@ struct wmi_tlv_sta_keepalive_cmd {
__le32 interval; /* in seconds */
} __packed;
+struct wmi_tlv_adaptive_qcs {
+ __le32 enable;
+} __packed;
+
void ath10k_wmi_tlv_attach(struct ath10k *ar);
#endif
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 0b49ec4..8966848 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -5224,6 +5224,7 @@ static const struct wmi_ops wmi_ops = {
/* .gen_bcn_tmpl not implemented */
/* .gen_prb_tmpl not implemented */
/* .gen_p2p_go_bcn_ie not implemented */
+ /* .gen_adaptive_qcs not implemented */
};
static const struct wmi_ops wmi_10_1_ops = {
@@ -5286,6 +5287,7 @@ static const struct wmi_ops wmi_10_1_ops = {
/* .gen_bcn_tmpl not implemented */
/* .gen_prb_tmpl not implemented */
/* .gen_p2p_go_bcn_ie not implemented */
+ /* .gen_adaptive_qcs not implemented */
};
static const struct wmi_ops wmi_10_2_ops = {
@@ -5408,6 +5410,7 @@ static const struct wmi_ops wmi_10_2_4_ops = {
/* .gen_bcn_tmpl not implemented */
/* .gen_prb_tmpl not implemented */
/* .gen_p2p_go_bcn_ie not implemented */
+ /* .gen_adaptive_qcs not implemented */
};
int ath10k_wmi_attach(struct ath10k *ar)
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 20ce360..69c7cf4 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -552,6 +552,7 @@ struct wmi_cmd_map {
u32 gpio_output_cmdid;
u32 pdev_get_temperature_cmdid;
u32 vdev_set_wmm_params_cmdid;
+ u32 adaptive_qcs_cmdid;
};
/*
--
1.8.5.3
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH v2 4/7] ath10k: protect ar->arvifs linking with data_lock
2015-01-30 12:31 ` Michal Kazior
@ 2015-01-30 12:31 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 12:31 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
This will make it possible to iterate over
interface list while in an atomic context,
i.e. tasklet.
Caller should still be careful with accessing
arvif structures though.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/mac.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index e099479..ba66a67 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3331,7 +3331,10 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
}
ar->free_vdev_map &= ~(1LL << arvif->vdev_id);
+
+ spin_lock_bh(&ar->data_lock);
list_add(&arvif->list, &ar->arvifs);
+ spin_unlock_bh(&ar->data_lock);
/* It makes no sense to have firmware do keepalives. mac80211 already
* takes care of this with idle connection polling.
@@ -3458,7 +3461,9 @@ err_peer_delete:
err_vdev_delete:
ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
ar->free_vdev_map |= 1LL << arvif->vdev_id;
+ spin_lock_bh(&ar->data_lock);
list_del(&arvif->list);
+ spin_unlock_bh(&ar->data_lock);
err:
if (arvif->beacon_buf) {
@@ -3493,7 +3498,10 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
arvif->vdev_id, ret);
ar->free_vdev_map |= 1LL << arvif->vdev_id;
+
+ spin_lock_bh(&ar->data_lock);
list_del(&arvif->list);
+ spin_unlock_bh(&ar->data_lock);
if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, vif->addr);
--
1.8.5.3
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH v2 4/7] ath10k: protect ar->arvifs linking with data_lock
@ 2015-01-30 12:31 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 12:31 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
This will make it possible to iterate over
interface list while in an atomic context,
i.e. tasklet.
Caller should still be careful with accessing
arvif structures though.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/mac.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index e099479..ba66a67 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3331,7 +3331,10 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
}
ar->free_vdev_map &= ~(1LL << arvif->vdev_id);
+
+ spin_lock_bh(&ar->data_lock);
list_add(&arvif->list, &ar->arvifs);
+ spin_unlock_bh(&ar->data_lock);
/* It makes no sense to have firmware do keepalives. mac80211 already
* takes care of this with idle connection polling.
@@ -3458,7 +3461,9 @@ err_peer_delete:
err_vdev_delete:
ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
ar->free_vdev_map |= 1LL << arvif->vdev_id;
+ spin_lock_bh(&ar->data_lock);
list_del(&arvif->list);
+ spin_unlock_bh(&ar->data_lock);
err:
if (arvif->beacon_buf) {
@@ -3493,7 +3498,10 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
arvif->vdev_id, ret);
ar->free_vdev_map |= 1LL << arvif->vdev_id;
+
+ spin_lock_bh(&ar->data_lock);
list_del(&arvif->list);
+ spin_unlock_bh(&ar->data_lock);
if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, vif->addr);
--
1.8.5.3
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH v2 5/7] ath10k: rework tx queue locking
2015-01-30 12:31 ` Michal Kazior
@ 2015-01-30 12:31 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 12:31 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
Tx queue locking was very simple until now.
Multi-channel support will require a more flexible
and fine grained control.
This introduces a per-hw and per-vif (each with a
bitmask of reasons) tx queue locking.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/core.h | 8 +++++
drivers/net/wireless/ath/ath10k/htt_tx.c | 11 ++++--
drivers/net/wireless/ath/ath10k/mac.c | 20 ++++++++++-
drivers/net/wireless/ath/ath10k/mac.h | 57 ++++++++++++++++++++++++++++++++
4 files changed, 92 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index cf7963d..68df646 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -280,6 +280,7 @@ struct ath10k_vif {
bool beacon_sent;
void *beacon_buf;
dma_addr_t beacon_paddr;
+ unsigned long tx_paused; /* arbitrary values defined by target */
struct ath10k *ar;
struct ath10k_chanctx *arctx;
@@ -472,6 +473,11 @@ static inline const char *ath10k_scan_state_str(enum ath10k_scan_state state)
return "unknown";
}
+enum ath10k_tx_pause_reason {
+ ATH10K_TX_PAUSE_Q_FULL,
+ ATH10K_TX_PAUSE_MAX,
+};
+
struct ath10k {
struct ath_common ath_common;
struct ieee80211_hw *hw;
@@ -631,6 +637,8 @@ struct ath10k {
struct dfs_pattern_detector *dfs_detector;
+ unsigned long tx_paused; /* see ATH10K_TX_PAUSE_ */
+
#ifdef CONFIG_ATH10K_DEBUGFS
struct ath10k_debug debug;
#endif
diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index c1961e7..fcc52c1 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -24,9 +24,14 @@
void __ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
{
+ struct ath10k *ar = htt->ar;
+
htt->num_pending_tx--;
- if (htt->num_pending_tx == htt->max_num_pending_tx - 1)
- ieee80211_wake_queues(htt->ar->hw);
+ if (htt->num_pending_tx == htt->max_num_pending_tx - 1) {
+ spin_lock_bh(&ar->data_lock);
+ ath10k_mac_tx_unlock(htt->ar, ATH10K_TX_PAUSE_Q_FULL);
+ spin_unlock_bh(&ar->data_lock);
+ }
}
static void ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
@@ -49,7 +54,7 @@ static int ath10k_htt_tx_inc_pending(struct ath10k_htt *htt)
htt->num_pending_tx++;
if (htt->num_pending_tx == htt->max_num_pending_tx)
- ieee80211_stop_queues(htt->ar->hw);
+ ath10k_mac_tx_lock(htt->ar, ATH10K_TX_PAUSE_Q_FULL);
exit:
spin_unlock_bh(&htt->tx_lock);
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index ba66a67..92355f1 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2811,6 +2811,7 @@ void ath10k_halt(struct ath10k *ar)
ath10k_monitor_stop(ar);
ar->monitor_started = false;
+ ar->tx_paused = 0;
ath10k_scan_finish(ar);
ath10k_peer_cleanup_all(ar);
@@ -3233,6 +3234,7 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
int ret = 0;
u32 value;
int bit;
+ int i;
u32 vdev_param;
vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
@@ -3288,6 +3290,15 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
break;
}
+ /* Using vdev_id as queue number will make it very easy to do per-vif
+ * tx queue locking. This shouldn't wrap due to interface combinations
+ * but do a modulo for correctness sake and prevent using offchannel tx
+ * queues for regular vif tx.
+ */
+ vif->cab_queue = arvif->vdev_id % (IEEE80211_MAX_QUEUES - 1);
+ for (i = 0; i < ARRAY_SIZE(vif->hw_queue); i++)
+ vif->hw_queue[i] = arvif->vdev_id % (IEEE80211_MAX_QUEUES - 1);
+
/* Some firmware revisions don't wait for beacon tx completion before
* sending another SWBA event. This could lead to hardware using old
* (freed) beacon data in some cases, e.g. tx credit starvation
@@ -5785,6 +5796,7 @@ int ath10k_mac_register(struct ath10k *ar)
IEEE80211_HW_HAS_RATE_CONTROL |
IEEE80211_HW_AP_LINK_PS |
IEEE80211_HW_WANT_MONITOR_VIF |
+ IEEE80211_HW_QUEUE_CONTROL |
IEEE80211_HW_SPECTRUM_MGMT;
ar->hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS;
@@ -5830,7 +5842,13 @@ int ath10k_mac_register(struct ath10k *ar)
* on LL hardware queues are managed entirely by the FW
* so we only advertise to mac we can do the queues thing
*/
- ar->hw->queues = 4;
+ ar->hw->queues = IEEE80211_MAX_QUEUES;
+
+ /* vdev_ids are used as hw queue numbers. Make sure offchan tx queue is
+ * something that vdev_ids can't reach so that we don't stop the queue
+ * accidentally.
+ */
+ ar->hw->offchannel_tx_hw_queue = IEEE80211_MAX_QUEUES - 1;
switch (ar->wmi.op_version) {
case ATH10K_FW_WMI_OP_VERSION_MAIN:
diff --git a/drivers/net/wireless/ath/ath10k/mac.h b/drivers/net/wireless/ath/ath10k/mac.h
index 6829611..76776f6 100644
--- a/drivers/net/wireless/ath/ath10k/mac.h
+++ b/drivers/net/wireless/ath/ath10k/mac.h
@@ -69,4 +69,61 @@ static inline void ath10k_tx_h_seq_no(struct ieee80211_vif *vif,
}
}
+static inline void ath10k_mac_tx_lock(struct ath10k *ar, int reason)
+{
+ lockdep_assert_held(&ar->htt.tx_lock);
+
+ WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
+ ar->tx_paused |= BIT(reason);
+ ieee80211_stop_queues(ar->hw);
+}
+
+static inline void ath10k_mac_tx_unlock(struct ath10k *ar, int reason)
+{
+ struct ath10k_vif *arvif;
+
+ lockdep_assert_held(&ar->htt.tx_lock);
+ lockdep_assert_held(&ar->data_lock);
+
+ WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
+ ar->tx_paused &= ~BIT(reason);
+
+ if (ar->tx_paused)
+ return;
+
+ list_for_each_entry(arvif, &ar->arvifs, list)
+ if (!arvif->tx_paused)
+ ieee80211_wake_queue(ar->hw, arvif->vdev_id);
+}
+
+static inline void ath10k_mac_vif_tx_lock(struct ath10k_vif *arvif, int reason)
+{
+ struct ath10k *ar = arvif->ar;
+
+ lockdep_assert_held(&ar->htt.tx_lock);
+
+ WARN_ON(reason >= BITS_PER_LONG);
+ arvif->tx_paused |= BIT(reason);
+ ieee80211_stop_queue(ar->hw, arvif->vdev_id);
+}
+
+static inline void ath10k_mac_vif_tx_unlock(struct ath10k_vif *arvif,
+ int reason)
+{
+ struct ath10k *ar = arvif->ar;
+
+ lockdep_assert_held(&ar->htt.tx_lock);
+
+ WARN_ON(reason >= BITS_PER_LONG);
+ arvif->tx_paused &= ~BIT(reason);
+
+ if (ar->tx_paused)
+ return;
+
+ if (arvif->tx_paused)
+ return;
+
+ ieee80211_wake_queue(ar->hw, arvif->vdev_id);
+}
+
#endif /* _MAC_H_ */
--
1.8.5.3
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH v2 5/7] ath10k: rework tx queue locking
@ 2015-01-30 12:31 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 12:31 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
Tx queue locking was very simple until now.
Multi-channel support will require a more flexible
and fine grained control.
This introduces a per-hw and per-vif (each with a
bitmask of reasons) tx queue locking.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/core.h | 8 +++++
drivers/net/wireless/ath/ath10k/htt_tx.c | 11 ++++--
drivers/net/wireless/ath/ath10k/mac.c | 20 ++++++++++-
drivers/net/wireless/ath/ath10k/mac.h | 57 ++++++++++++++++++++++++++++++++
4 files changed, 92 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index cf7963d..68df646 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -280,6 +280,7 @@ struct ath10k_vif {
bool beacon_sent;
void *beacon_buf;
dma_addr_t beacon_paddr;
+ unsigned long tx_paused; /* arbitrary values defined by target */
struct ath10k *ar;
struct ath10k_chanctx *arctx;
@@ -472,6 +473,11 @@ static inline const char *ath10k_scan_state_str(enum ath10k_scan_state state)
return "unknown";
}
+enum ath10k_tx_pause_reason {
+ ATH10K_TX_PAUSE_Q_FULL,
+ ATH10K_TX_PAUSE_MAX,
+};
+
struct ath10k {
struct ath_common ath_common;
struct ieee80211_hw *hw;
@@ -631,6 +637,8 @@ struct ath10k {
struct dfs_pattern_detector *dfs_detector;
+ unsigned long tx_paused; /* see ATH10K_TX_PAUSE_ */
+
#ifdef CONFIG_ATH10K_DEBUGFS
struct ath10k_debug debug;
#endif
diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index c1961e7..fcc52c1 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -24,9 +24,14 @@
void __ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
{
+ struct ath10k *ar = htt->ar;
+
htt->num_pending_tx--;
- if (htt->num_pending_tx == htt->max_num_pending_tx - 1)
- ieee80211_wake_queues(htt->ar->hw);
+ if (htt->num_pending_tx == htt->max_num_pending_tx - 1) {
+ spin_lock_bh(&ar->data_lock);
+ ath10k_mac_tx_unlock(htt->ar, ATH10K_TX_PAUSE_Q_FULL);
+ spin_unlock_bh(&ar->data_lock);
+ }
}
static void ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
@@ -49,7 +54,7 @@ static int ath10k_htt_tx_inc_pending(struct ath10k_htt *htt)
htt->num_pending_tx++;
if (htt->num_pending_tx == htt->max_num_pending_tx)
- ieee80211_stop_queues(htt->ar->hw);
+ ath10k_mac_tx_lock(htt->ar, ATH10K_TX_PAUSE_Q_FULL);
exit:
spin_unlock_bh(&htt->tx_lock);
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index ba66a67..92355f1 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2811,6 +2811,7 @@ void ath10k_halt(struct ath10k *ar)
ath10k_monitor_stop(ar);
ar->monitor_started = false;
+ ar->tx_paused = 0;
ath10k_scan_finish(ar);
ath10k_peer_cleanup_all(ar);
@@ -3233,6 +3234,7 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
int ret = 0;
u32 value;
int bit;
+ int i;
u32 vdev_param;
vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
@@ -3288,6 +3290,15 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
break;
}
+ /* Using vdev_id as queue number will make it very easy to do per-vif
+ * tx queue locking. This shouldn't wrap due to interface combinations
+ * but do a modulo for correctness sake and prevent using offchannel tx
+ * queues for regular vif tx.
+ */
+ vif->cab_queue = arvif->vdev_id % (IEEE80211_MAX_QUEUES - 1);
+ for (i = 0; i < ARRAY_SIZE(vif->hw_queue); i++)
+ vif->hw_queue[i] = arvif->vdev_id % (IEEE80211_MAX_QUEUES - 1);
+
/* Some firmware revisions don't wait for beacon tx completion before
* sending another SWBA event. This could lead to hardware using old
* (freed) beacon data in some cases, e.g. tx credit starvation
@@ -5785,6 +5796,7 @@ int ath10k_mac_register(struct ath10k *ar)
IEEE80211_HW_HAS_RATE_CONTROL |
IEEE80211_HW_AP_LINK_PS |
IEEE80211_HW_WANT_MONITOR_VIF |
+ IEEE80211_HW_QUEUE_CONTROL |
IEEE80211_HW_SPECTRUM_MGMT;
ar->hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS;
@@ -5830,7 +5842,13 @@ int ath10k_mac_register(struct ath10k *ar)
* on LL hardware queues are managed entirely by the FW
* so we only advertise to mac we can do the queues thing
*/
- ar->hw->queues = 4;
+ ar->hw->queues = IEEE80211_MAX_QUEUES;
+
+ /* vdev_ids are used as hw queue numbers. Make sure offchan tx queue is
+ * something that vdev_ids can't reach so that we don't stop the queue
+ * accidentally.
+ */
+ ar->hw->offchannel_tx_hw_queue = IEEE80211_MAX_QUEUES - 1;
switch (ar->wmi.op_version) {
case ATH10K_FW_WMI_OP_VERSION_MAIN:
diff --git a/drivers/net/wireless/ath/ath10k/mac.h b/drivers/net/wireless/ath/ath10k/mac.h
index 6829611..76776f6 100644
--- a/drivers/net/wireless/ath/ath10k/mac.h
+++ b/drivers/net/wireless/ath/ath10k/mac.h
@@ -69,4 +69,61 @@ static inline void ath10k_tx_h_seq_no(struct ieee80211_vif *vif,
}
}
+static inline void ath10k_mac_tx_lock(struct ath10k *ar, int reason)
+{
+ lockdep_assert_held(&ar->htt.tx_lock);
+
+ WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
+ ar->tx_paused |= BIT(reason);
+ ieee80211_stop_queues(ar->hw);
+}
+
+static inline void ath10k_mac_tx_unlock(struct ath10k *ar, int reason)
+{
+ struct ath10k_vif *arvif;
+
+ lockdep_assert_held(&ar->htt.tx_lock);
+ lockdep_assert_held(&ar->data_lock);
+
+ WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
+ ar->tx_paused &= ~BIT(reason);
+
+ if (ar->tx_paused)
+ return;
+
+ list_for_each_entry(arvif, &ar->arvifs, list)
+ if (!arvif->tx_paused)
+ ieee80211_wake_queue(ar->hw, arvif->vdev_id);
+}
+
+static inline void ath10k_mac_vif_tx_lock(struct ath10k_vif *arvif, int reason)
+{
+ struct ath10k *ar = arvif->ar;
+
+ lockdep_assert_held(&ar->htt.tx_lock);
+
+ WARN_ON(reason >= BITS_PER_LONG);
+ arvif->tx_paused |= BIT(reason);
+ ieee80211_stop_queue(ar->hw, arvif->vdev_id);
+}
+
+static inline void ath10k_mac_vif_tx_unlock(struct ath10k_vif *arvif,
+ int reason)
+{
+ struct ath10k *ar = arvif->ar;
+
+ lockdep_assert_held(&ar->htt.tx_lock);
+
+ WARN_ON(reason >= BITS_PER_LONG);
+ arvif->tx_paused &= ~BIT(reason);
+
+ if (ar->tx_paused)
+ return;
+
+ if (arvif->tx_paused)
+ return;
+
+ ieee80211_wake_queue(ar->hw, arvif->vdev_id);
+}
+
#endif /* _MAC_H_ */
--
1.8.5.3
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH v2 6/7] ath10k: implement tx pause wmi event
2015-01-30 12:31 ` Michal Kazior
@ 2015-01-30 12:31 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 12:31 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
qca6174 wmi-tlv firmware defines a new wmi event
for host tx pausing (i.e. stop/wake tx queues).
Map these events to ath10k/mac80211 tx queue
control.
This is important for multi-channel throughput
performance.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
Notes:
v2:
* s/thourghput/throughput/ in commit log
drivers/net/wireless/ath/ath10k/mac.c | 12 +++++
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 86 +++++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi-tlv.h | 42 +++++++++++++++
3 files changed, 140 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 92355f1..9dab8cb 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3488,6 +3488,14 @@ err:
return ret;
}
+static void ath10k_mac_vif_tx_unlock_all(struct ath10k_vif *arvif)
+{
+ int i;
+
+ for (i = 0; i < BITS_PER_LONG; i++)
+ ath10k_mac_vif_tx_unlock(arvif, i);
+}
+
static void ath10k_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
@@ -3540,6 +3548,10 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
}
+ spin_lock_bh(&ar->htt.tx_lock);
+ ath10k_mac_vif_tx_unlock_all(arvif);
+ spin_unlock_bh(&ar->htt.tx_lock);
+
mutex_unlock(&ar->conf_mutex);
}
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index 0e36b34..3763359 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -16,6 +16,7 @@
*/
#include "core.h"
#include "debug.h"
+#include "mac.h"
#include "hw.h"
#include "wmi.h"
#include "wmi-ops.h"
@@ -62,6 +63,8 @@ static const struct wmi_tlv_policy wmi_tlv_policies[] = {
= { .min_len = sizeof(struct wmi_tlv_bcn_tx_status_ev) },
[WMI_TLV_TAG_STRUCT_DIAG_DATA_CONTAINER_EVENT]
= { .min_len = sizeof(struct wmi_tlv_diag_data_ev) },
+ [WMI_TLV_TAG_STRUCT_TX_PAUSE_EVENT]
+ = { .min_len = sizeof(struct wmi_tlv_tx_pause_ev) },
};
static int
@@ -296,6 +299,86 @@ static int ath10k_wmi_tlv_event_diag(struct ath10k *ar,
return 0;
}
+static int ath10k_wmi_tlv_event_tx_pause(struct ath10k *ar,
+ struct sk_buff *skb)
+{
+ const void **tb;
+ const struct wmi_tlv_tx_pause_ev *ev;
+ int ret, vdev_id;
+ u32 pause_id, action, vdev_map, peer_id, tid_map;
+ struct ath10k_vif *arvif;
+
+ tb = ath10k_wmi_tlv_parse_alloc(ar, skb->data, skb->len, GFP_ATOMIC);
+ if (IS_ERR(tb)) {
+ ret = PTR_ERR(tb);
+ ath10k_warn(ar, "failed to parse tlv: %d\n", ret);
+ return ret;
+ }
+
+ ev = tb[WMI_TLV_TAG_STRUCT_TX_PAUSE_EVENT];
+ if (!ev) {
+ kfree(tb);
+ return -EPROTO;
+ }
+
+ pause_id = __le32_to_cpu(ev->pause_id);
+ action = __le32_to_cpu(ev->action);
+ vdev_map = __le32_to_cpu(ev->vdev_map);
+ peer_id = __le32_to_cpu(ev->peer_id);
+ tid_map = __le32_to_cpu(ev->tid_map);
+
+ ath10k_dbg(ar, ATH10K_DBG_WMI,
+ "wmi tlv tx pause pause_id %u action %u vdev_map 0x%08x peer_id %u tid_map 0x%08x\n",
+ pause_id, action, vdev_map, peer_id, tid_map);
+
+ for (vdev_id = 0; vdev_map; vdev_id++) {
+ if (!(vdev_map & BIT(vdev_id)))
+ continue;
+
+ vdev_map &= ~BIT(vdev_id);
+
+ spin_lock_bh(&ar->htt.tx_lock);
+ spin_lock_bh(&ar->data_lock);
+
+ arvif = ath10k_get_arvif(ar, vdev_id);
+ if (!arvif) {
+ ath10k_warn(ar, "failed to find arvif for vdev %i for tx pause event\n",
+ vdev_id);
+ spin_unlock_bh(&ar->data_lock);
+ spin_unlock_bh(&ar->htt.tx_lock);
+ continue;
+ }
+
+ /* FIXME: Some pause_id aren't vdev orinted. Instead they are
+ * peer_id oriented (mostly for AP mode scenarios).
+ */
+ if (pause_id == WMI_TLV_TX_PAUSE_ID_MCC ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_P2P_CLI_NOA ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_P2P_GO_PS ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_AP_PS ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_IBSS_PS) {
+ switch (action) {
+ case WMI_TLV_TX_PAUSE_ACTION_STOP:
+ ath10k_mac_vif_tx_lock(arvif, pause_id);
+ break;
+ case WMI_TLV_TX_PAUSE_ACTION_WAKE:
+ ath10k_mac_vif_tx_unlock(arvif, pause_id);
+ break;
+ default:
+ ath10k_warn(ar, "received unknown tx pause action %d on vdev %i, ignoring\n",
+ action, vdev_id);
+ break;
+ }
+ }
+
+ spin_unlock_bh(&ar->data_lock);
+ spin_unlock_bh(&ar->htt.tx_lock);
+ }
+
+ kfree(tb);
+ return 0;
+}
+
/***********/
/* TLV ops */
/***********/
@@ -417,6 +500,9 @@ static void ath10k_wmi_tlv_op_rx(struct ath10k *ar, struct sk_buff *skb)
case WMI_TLV_DIAG_EVENTID:
ath10k_wmi_tlv_event_diag(ar, skb);
break;
+ case WMI_TLV_TX_PAUSE_EVENTID:
+ ath10k_wmi_tlv_event_tx_pause(ar, skb);
+ break;
default:
ath10k_warn(ar, "Unknown eventid: %d\n", id);
break;
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.h b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
index a05952a..3abc85f 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.h
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
@@ -1443,6 +1443,48 @@ struct wmi_tlv_adaptive_qcs {
__le32 enable;
} __packed;
+/**
+ * wmi_tlv_tx_pause_id - firmware tx queue pause reason types
+ *
+ * @WMI_TLV_TX_PAUSE_ID_MCC: used for by multi-channel firmware scheduler.
+ * Only vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_AP_PEER_PS: peer in AP mode is asleep.
+ * Only peer_id is valid.
+ * @WMI_TLV_TX_PAUSE_ID_AP_PEER_UAPSD: Only peer_id and tid_map are valid.
+ * @WMI_TLV_TX_PAUSE_ID_P2P_CLI_NOA: Only vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_P2P_GO_PS: Only vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_STA_ADD_BA: Only peer_id and tid_map are valid.
+ * @WMI_TLV_TX_PAUSE_ID_AP_PS: When all peers are asleep in AP mode. Only
+ * vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_IBSS_PS: When all peers are asleep in IBSS mode. Only
+ * vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_HOST: Host itself requested tx pause.
+ */
+enum wmi_tlv_tx_pause_id {
+ WMI_TLV_TX_PAUSE_ID_MCC = 1,
+ WMI_TLV_TX_PAUSE_ID_AP_PEER_PS = 2,
+ WMI_TLV_TX_PAUSE_ID_AP_PEER_UAPSD = 3,
+ WMI_TLV_TX_PAUSE_ID_P2P_CLI_NOA = 4,
+ WMI_TLV_TX_PAUSE_ID_P2P_GO_PS = 5,
+ WMI_TLV_TX_PAUSE_ID_STA_ADD_BA = 6,
+ WMI_TLV_TX_PAUSE_ID_AP_PS = 7,
+ WMI_TLV_TX_PAUSE_ID_IBSS_PS = 8,
+ WMI_TLV_TX_PAUSE_ID_HOST = 21,
+};
+
+enum wmi_tlv_tx_pause_action {
+ WMI_TLV_TX_PAUSE_ACTION_STOP,
+ WMI_TLV_TX_PAUSE_ACTION_WAKE,
+};
+
+struct wmi_tlv_tx_pause_ev {
+ __le32 pause_id;
+ __le32 action;
+ __le32 vdev_map;
+ __le32 peer_id;
+ __le32 tid_map;
+} __packed;
+
void ath10k_wmi_tlv_attach(struct ath10k *ar);
#endif
--
1.8.5.3
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH v2 6/7] ath10k: implement tx pause wmi event
@ 2015-01-30 12:31 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 12:31 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
qca6174 wmi-tlv firmware defines a new wmi event
for host tx pausing (i.e. stop/wake tx queues).
Map these events to ath10k/mac80211 tx queue
control.
This is important for multi-channel throughput
performance.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
Notes:
v2:
* s/thourghput/throughput/ in commit log
drivers/net/wireless/ath/ath10k/mac.c | 12 +++++
drivers/net/wireless/ath/ath10k/wmi-tlv.c | 86 +++++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi-tlv.h | 42 +++++++++++++++
3 files changed, 140 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 92355f1..9dab8cb 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3488,6 +3488,14 @@ err:
return ret;
}
+static void ath10k_mac_vif_tx_unlock_all(struct ath10k_vif *arvif)
+{
+ int i;
+
+ for (i = 0; i < BITS_PER_LONG; i++)
+ ath10k_mac_vif_tx_unlock(arvif, i);
+}
+
static void ath10k_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
@@ -3540,6 +3548,10 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
}
+ spin_lock_bh(&ar->htt.tx_lock);
+ ath10k_mac_vif_tx_unlock_all(arvif);
+ spin_unlock_bh(&ar->htt.tx_lock);
+
mutex_unlock(&ar->conf_mutex);
}
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index 0e36b34..3763359 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -16,6 +16,7 @@
*/
#include "core.h"
#include "debug.h"
+#include "mac.h"
#include "hw.h"
#include "wmi.h"
#include "wmi-ops.h"
@@ -62,6 +63,8 @@ static const struct wmi_tlv_policy wmi_tlv_policies[] = {
= { .min_len = sizeof(struct wmi_tlv_bcn_tx_status_ev) },
[WMI_TLV_TAG_STRUCT_DIAG_DATA_CONTAINER_EVENT]
= { .min_len = sizeof(struct wmi_tlv_diag_data_ev) },
+ [WMI_TLV_TAG_STRUCT_TX_PAUSE_EVENT]
+ = { .min_len = sizeof(struct wmi_tlv_tx_pause_ev) },
};
static int
@@ -296,6 +299,86 @@ static int ath10k_wmi_tlv_event_diag(struct ath10k *ar,
return 0;
}
+static int ath10k_wmi_tlv_event_tx_pause(struct ath10k *ar,
+ struct sk_buff *skb)
+{
+ const void **tb;
+ const struct wmi_tlv_tx_pause_ev *ev;
+ int ret, vdev_id;
+ u32 pause_id, action, vdev_map, peer_id, tid_map;
+ struct ath10k_vif *arvif;
+
+ tb = ath10k_wmi_tlv_parse_alloc(ar, skb->data, skb->len, GFP_ATOMIC);
+ if (IS_ERR(tb)) {
+ ret = PTR_ERR(tb);
+ ath10k_warn(ar, "failed to parse tlv: %d\n", ret);
+ return ret;
+ }
+
+ ev = tb[WMI_TLV_TAG_STRUCT_TX_PAUSE_EVENT];
+ if (!ev) {
+ kfree(tb);
+ return -EPROTO;
+ }
+
+ pause_id = __le32_to_cpu(ev->pause_id);
+ action = __le32_to_cpu(ev->action);
+ vdev_map = __le32_to_cpu(ev->vdev_map);
+ peer_id = __le32_to_cpu(ev->peer_id);
+ tid_map = __le32_to_cpu(ev->tid_map);
+
+ ath10k_dbg(ar, ATH10K_DBG_WMI,
+ "wmi tlv tx pause pause_id %u action %u vdev_map 0x%08x peer_id %u tid_map 0x%08x\n",
+ pause_id, action, vdev_map, peer_id, tid_map);
+
+ for (vdev_id = 0; vdev_map; vdev_id++) {
+ if (!(vdev_map & BIT(vdev_id)))
+ continue;
+
+ vdev_map &= ~BIT(vdev_id);
+
+ spin_lock_bh(&ar->htt.tx_lock);
+ spin_lock_bh(&ar->data_lock);
+
+ arvif = ath10k_get_arvif(ar, vdev_id);
+ if (!arvif) {
+ ath10k_warn(ar, "failed to find arvif for vdev %i for tx pause event\n",
+ vdev_id);
+ spin_unlock_bh(&ar->data_lock);
+ spin_unlock_bh(&ar->htt.tx_lock);
+ continue;
+ }
+
+ /* FIXME: Some pause_id aren't vdev orinted. Instead they are
+ * peer_id oriented (mostly for AP mode scenarios).
+ */
+ if (pause_id == WMI_TLV_TX_PAUSE_ID_MCC ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_P2P_CLI_NOA ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_P2P_GO_PS ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_AP_PS ||
+ pause_id == WMI_TLV_TX_PAUSE_ID_IBSS_PS) {
+ switch (action) {
+ case WMI_TLV_TX_PAUSE_ACTION_STOP:
+ ath10k_mac_vif_tx_lock(arvif, pause_id);
+ break;
+ case WMI_TLV_TX_PAUSE_ACTION_WAKE:
+ ath10k_mac_vif_tx_unlock(arvif, pause_id);
+ break;
+ default:
+ ath10k_warn(ar, "received unknown tx pause action %d on vdev %i, ignoring\n",
+ action, vdev_id);
+ break;
+ }
+ }
+
+ spin_unlock_bh(&ar->data_lock);
+ spin_unlock_bh(&ar->htt.tx_lock);
+ }
+
+ kfree(tb);
+ return 0;
+}
+
/***********/
/* TLV ops */
/***********/
@@ -417,6 +500,9 @@ static void ath10k_wmi_tlv_op_rx(struct ath10k *ar, struct sk_buff *skb)
case WMI_TLV_DIAG_EVENTID:
ath10k_wmi_tlv_event_diag(ar, skb);
break;
+ case WMI_TLV_TX_PAUSE_EVENTID:
+ ath10k_wmi_tlv_event_tx_pause(ar, skb);
+ break;
default:
ath10k_warn(ar, "Unknown eventid: %d\n", id);
break;
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.h b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
index a05952a..3abc85f 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.h
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
@@ -1443,6 +1443,48 @@ struct wmi_tlv_adaptive_qcs {
__le32 enable;
} __packed;
+/**
+ * wmi_tlv_tx_pause_id - firmware tx queue pause reason types
+ *
+ * @WMI_TLV_TX_PAUSE_ID_MCC: used for by multi-channel firmware scheduler.
+ * Only vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_AP_PEER_PS: peer in AP mode is asleep.
+ * Only peer_id is valid.
+ * @WMI_TLV_TX_PAUSE_ID_AP_PEER_UAPSD: Only peer_id and tid_map are valid.
+ * @WMI_TLV_TX_PAUSE_ID_P2P_CLI_NOA: Only vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_P2P_GO_PS: Only vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_STA_ADD_BA: Only peer_id and tid_map are valid.
+ * @WMI_TLV_TX_PAUSE_ID_AP_PS: When all peers are asleep in AP mode. Only
+ * vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_IBSS_PS: When all peers are asleep in IBSS mode. Only
+ * vdev_map is valid.
+ * @WMI_TLV_TX_PAUSE_ID_HOST: Host itself requested tx pause.
+ */
+enum wmi_tlv_tx_pause_id {
+ WMI_TLV_TX_PAUSE_ID_MCC = 1,
+ WMI_TLV_TX_PAUSE_ID_AP_PEER_PS = 2,
+ WMI_TLV_TX_PAUSE_ID_AP_PEER_UAPSD = 3,
+ WMI_TLV_TX_PAUSE_ID_P2P_CLI_NOA = 4,
+ WMI_TLV_TX_PAUSE_ID_P2P_GO_PS = 5,
+ WMI_TLV_TX_PAUSE_ID_STA_ADD_BA = 6,
+ WMI_TLV_TX_PAUSE_ID_AP_PS = 7,
+ WMI_TLV_TX_PAUSE_ID_IBSS_PS = 8,
+ WMI_TLV_TX_PAUSE_ID_HOST = 21,
+};
+
+enum wmi_tlv_tx_pause_action {
+ WMI_TLV_TX_PAUSE_ACTION_STOP,
+ WMI_TLV_TX_PAUSE_ACTION_WAKE,
+};
+
+struct wmi_tlv_tx_pause_ev {
+ __le32 pause_id;
+ __le32 action;
+ __le32 vdev_map;
+ __le32 peer_id;
+ __le32 tid_map;
+} __packed;
+
void ath10k_wmi_tlv_attach(struct ath10k *ar);
#endif
--
1.8.5.3
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH v2 7/7] ath10k: enable multi-channel on supported devices
2015-01-30 12:31 ` Michal Kazior
@ 2015-01-30 12:31 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 12:31 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
This effectively enables multi-channel operation
on qca6174 WLAN.RM.2.0-00073 (and possibly any
newer firmware release for qca6174).
This adds appopriate interface combinations and
initializes firmware channel scheduler.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/mac.c | 81 ++++++++++++++++++++++++++++++++++-
1 file changed, 80 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 9dab8cb..dc845e2 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2959,6 +2959,15 @@ static int ath10k_start(struct ieee80211_hw *hw)
goto err_core_stop;
}
+ if (test_bit(WMI_SERVICE_ADAPTIVE_OCS, ar->wmi.svc_map)) {
+ ret = ath10k_wmi_adaptive_qcs(ar, true);
+ if (ret) {
+ ath10k_warn(ar, "failed to enable adaptive qcs: %d\n",
+ ret);
+ goto err_core_stop;
+ }
+ }
+
if (ar->cfg_tx_chainmask)
__ath10k_set_antenna(ar, ar->cfg_tx_chainmask,
ar->cfg_rx_chainmask);
@@ -5614,6 +5623,64 @@ static const struct ieee80211_iface_combination ath10k_10x_if_comb[] = {
},
};
+static const struct ieee80211_iface_limit ath10k_tlv_if_limit[] = {
+ {
+ .max = 2,
+ .types = BIT(NL80211_IFTYPE_STATION) |
+ BIT(NL80211_IFTYPE_AP) |
+ BIT(NL80211_IFTYPE_P2P_CLIENT) |
+ BIT(NL80211_IFTYPE_P2P_GO),
+ },
+ {
+ .max = 1,
+ .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
+ },
+};
+
+static const struct ieee80211_iface_limit ath10k_tlv_if_limit_ibss[] = {
+ {
+ .max = 1,
+ .types = BIT(NL80211_IFTYPE_STATION),
+ },
+ {
+ .max = 1,
+ .types = BIT(NL80211_IFTYPE_ADHOC),
+ },
+};
+
+/* FIXME: This is not thouroughly tested. These combinations may over- or
+ * underestimate hw/fw capabilities.
+ */
+static struct ieee80211_iface_combination ath10k_tlv_if_comb[] = {
+ {
+ .limits = ath10k_tlv_if_limit,
+ .num_different_channels = 1,
+ .max_interfaces = 2,
+ .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
+ },
+ {
+ .limits = ath10k_tlv_if_limit_ibss,
+ .num_different_channels = 1,
+ .max_interfaces = 2,
+ .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
+ },
+};
+
+static struct ieee80211_iface_combination ath10k_tlv_qcs_if_comb[] = {
+ {
+ .limits = ath10k_tlv_if_limit,
+ .num_different_channels = 2,
+ .max_interfaces = 2,
+ .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
+ },
+ {
+ .limits = ath10k_tlv_if_limit_ibss,
+ .num_different_channels = 1,
+ .max_interfaces = 2,
+ .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
+ },
+};
+
static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
{
struct ieee80211_sta_vht_cap vht_cap = {0};
@@ -5864,12 +5931,24 @@ int ath10k_mac_register(struct ath10k *ar)
switch (ar->wmi.op_version) {
case ATH10K_FW_WMI_OP_VERSION_MAIN:
- case ATH10K_FW_WMI_OP_VERSION_TLV:
ar->hw->wiphy->iface_combinations = ath10k_if_comb;
ar->hw->wiphy->n_iface_combinations =
ARRAY_SIZE(ath10k_if_comb);
ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
break;
+ case ATH10K_FW_WMI_OP_VERSION_TLV:
+ if (test_bit(WMI_SERVICE_ADAPTIVE_OCS, ar->wmi.svc_map)) {
+ ar->hw->wiphy->iface_combinations =
+ ath10k_tlv_qcs_if_comb;
+ ar->hw->wiphy->n_iface_combinations =
+ ARRAY_SIZE(ath10k_tlv_qcs_if_comb);
+ } else {
+ ar->hw->wiphy->iface_combinations = ath10k_tlv_if_comb;
+ ar->hw->wiphy->n_iface_combinations =
+ ARRAY_SIZE(ath10k_tlv_if_comb);
+ }
+ ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
+ break;
case ATH10K_FW_WMI_OP_VERSION_10_1:
case ATH10K_FW_WMI_OP_VERSION_10_2:
case ATH10K_FW_WMI_OP_VERSION_10_2_4:
--
1.8.5.3
^ permalink raw reply related [flat|nested] 58+ messages in thread
* [PATCH v2 7/7] ath10k: enable multi-channel on supported devices
@ 2015-01-30 12:31 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 12:31 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, Michal Kazior
This effectively enables multi-channel operation
on qca6174 WLAN.RM.2.0-00073 (and possibly any
newer firmware release for qca6174).
This adds appopriate interface combinations and
initializes firmware channel scheduler.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
drivers/net/wireless/ath/ath10k/mac.c | 81 ++++++++++++++++++++++++++++++++++-
1 file changed, 80 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 9dab8cb..dc845e2 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2959,6 +2959,15 @@ static int ath10k_start(struct ieee80211_hw *hw)
goto err_core_stop;
}
+ if (test_bit(WMI_SERVICE_ADAPTIVE_OCS, ar->wmi.svc_map)) {
+ ret = ath10k_wmi_adaptive_qcs(ar, true);
+ if (ret) {
+ ath10k_warn(ar, "failed to enable adaptive qcs: %d\n",
+ ret);
+ goto err_core_stop;
+ }
+ }
+
if (ar->cfg_tx_chainmask)
__ath10k_set_antenna(ar, ar->cfg_tx_chainmask,
ar->cfg_rx_chainmask);
@@ -5614,6 +5623,64 @@ static const struct ieee80211_iface_combination ath10k_10x_if_comb[] = {
},
};
+static const struct ieee80211_iface_limit ath10k_tlv_if_limit[] = {
+ {
+ .max = 2,
+ .types = BIT(NL80211_IFTYPE_STATION) |
+ BIT(NL80211_IFTYPE_AP) |
+ BIT(NL80211_IFTYPE_P2P_CLIENT) |
+ BIT(NL80211_IFTYPE_P2P_GO),
+ },
+ {
+ .max = 1,
+ .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
+ },
+};
+
+static const struct ieee80211_iface_limit ath10k_tlv_if_limit_ibss[] = {
+ {
+ .max = 1,
+ .types = BIT(NL80211_IFTYPE_STATION),
+ },
+ {
+ .max = 1,
+ .types = BIT(NL80211_IFTYPE_ADHOC),
+ },
+};
+
+/* FIXME: This is not thouroughly tested. These combinations may over- or
+ * underestimate hw/fw capabilities.
+ */
+static struct ieee80211_iface_combination ath10k_tlv_if_comb[] = {
+ {
+ .limits = ath10k_tlv_if_limit,
+ .num_different_channels = 1,
+ .max_interfaces = 2,
+ .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
+ },
+ {
+ .limits = ath10k_tlv_if_limit_ibss,
+ .num_different_channels = 1,
+ .max_interfaces = 2,
+ .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
+ },
+};
+
+static struct ieee80211_iface_combination ath10k_tlv_qcs_if_comb[] = {
+ {
+ .limits = ath10k_tlv_if_limit,
+ .num_different_channels = 2,
+ .max_interfaces = 2,
+ .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
+ },
+ {
+ .limits = ath10k_tlv_if_limit_ibss,
+ .num_different_channels = 1,
+ .max_interfaces = 2,
+ .n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
+ },
+};
+
static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
{
struct ieee80211_sta_vht_cap vht_cap = {0};
@@ -5864,12 +5931,24 @@ int ath10k_mac_register(struct ath10k *ar)
switch (ar->wmi.op_version) {
case ATH10K_FW_WMI_OP_VERSION_MAIN:
- case ATH10K_FW_WMI_OP_VERSION_TLV:
ar->hw->wiphy->iface_combinations = ath10k_if_comb;
ar->hw->wiphy->n_iface_combinations =
ARRAY_SIZE(ath10k_if_comb);
ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
break;
+ case ATH10K_FW_WMI_OP_VERSION_TLV:
+ if (test_bit(WMI_SERVICE_ADAPTIVE_OCS, ar->wmi.svc_map)) {
+ ar->hw->wiphy->iface_combinations =
+ ath10k_tlv_qcs_if_comb;
+ ar->hw->wiphy->n_iface_combinations =
+ ARRAY_SIZE(ath10k_tlv_qcs_if_comb);
+ } else {
+ ar->hw->wiphy->iface_combinations = ath10k_tlv_if_comb;
+ ar->hw->wiphy->n_iface_combinations =
+ ARRAY_SIZE(ath10k_tlv_if_comb);
+ }
+ ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
+ break;
case ATH10K_FW_WMI_OP_VERSION_10_1:
case ATH10K_FW_WMI_OP_VERSION_10_2:
case ATH10K_FW_WMI_OP_VERSION_10_2_4:
--
1.8.5.3
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
2015-01-30 12:31 ` Michal Kazior
@ 2015-01-30 12:45 ` Johannes Berg
-1 siblings, 0 replies; 58+ messages in thread
From: Johannes Berg @ 2015-01-30 12:45 UTC (permalink / raw)
To: Michal Kazior; +Cc: ath10k, linux-wireless
On Fri, 2015-01-30 at 13:31 +0100, Michal Kazior wrote:
> + INIT_LIST_HEAD(&ar->arctxs);
> INIT_LIST_HEAD(&ar->arvifs);
I'm not sure why you have an interface list, but I'd say you don't need
either since you have enumeration APIs:
ieee80211_iterate_active_interfaces[_atomic,...]
and
ieee80211_iter_chan_contexts_atomic
:)
johannes
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
@ 2015-01-30 12:45 ` Johannes Berg
0 siblings, 0 replies; 58+ messages in thread
From: Johannes Berg @ 2015-01-30 12:45 UTC (permalink / raw)
To: Michal Kazior; +Cc: linux-wireless, ath10k
On Fri, 2015-01-30 at 13:31 +0100, Michal Kazior wrote:
> + INIT_LIST_HEAD(&ar->arctxs);
> INIT_LIST_HEAD(&ar->arvifs);
I'm not sure why you have an interface list, but I'd say you don't need
either since you have enumeration APIs:
ieee80211_iterate_active_interfaces[_atomic,...]
and
ieee80211_iter_chan_contexts_atomic
:)
johannes
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
2015-01-30 12:31 ` Michal Kazior
@ 2015-01-30 12:58 ` Johannes Berg
-1 siblings, 0 replies; 58+ messages in thread
From: Johannes Berg @ 2015-01-30 12:58 UTC (permalink / raw)
To: Michal Kazior; +Cc: ath10k, linux-wireless
> +++ b/drivers/net/wireless/ath/ath10k/core.h
> @@ -277,6 +282,7 @@ struct ath10k_vif {
> dma_addr_t beacon_paddr;
>
> struct ath10k *ar;
> + struct ath10k_chanctx *arctx;
you also have vif->chanctx_conf pointer, which you could use
ultimately it's a software architecture decision - personally I wouldn't
want to duplicate all that data and the lists etc. in the driver when
mac80211 has them, but that's just my opinion. :)
johannes
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
@ 2015-01-30 12:58 ` Johannes Berg
0 siblings, 0 replies; 58+ messages in thread
From: Johannes Berg @ 2015-01-30 12:58 UTC (permalink / raw)
To: Michal Kazior; +Cc: linux-wireless, ath10k
> +++ b/drivers/net/wireless/ath/ath10k/core.h
> @@ -277,6 +282,7 @@ struct ath10k_vif {
> dma_addr_t beacon_paddr;
>
> struct ath10k *ar;
> + struct ath10k_chanctx *arctx;
you also have vif->chanctx_conf pointer, which you could use
ultimately it's a software architecture decision - personally I wouldn't
want to duplicate all that data and the lists etc. in the driver when
mac80211 has them, but that's just my opinion. :)
johannes
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
2015-01-30 12:45 ` Johannes Berg
@ 2015-01-30 13:02 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 13:02 UTC (permalink / raw)
To: Johannes Berg; +Cc: ath10k, linux-wireless
On 30 January 2015 at 13:45, Johannes Berg <johannes@sipsolutions.net> wrote:
> On Fri, 2015-01-30 at 13:31 +0100, Michal Kazior wrote:
>
>> + INIT_LIST_HEAD(&ar->arctxs);
>> INIT_LIST_HEAD(&ar->arvifs);
>
> I'm not sure why you have an interface list, but I'd say you don't need
> either since you have enumeration APIs:
>
> ieee80211_iterate_active_interfaces[_atomic,...]
>
> and
>
> ieee80211_iter_chan_contexts_atomic
>
> :)
I recall that at least there's one case where using these helpers is
impossible: drv_config() which can be called while mac80211 is already
holding iflist_mtx. ath10k needs to iterate over vifs and issue
blocking commands sometimes so it can't use atomic/rcu versions
either.
Michał
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
@ 2015-01-30 13:02 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 13:02 UTC (permalink / raw)
To: Johannes Berg; +Cc: linux-wireless, ath10k
On 30 January 2015 at 13:45, Johannes Berg <johannes@sipsolutions.net> wrote:
> On Fri, 2015-01-30 at 13:31 +0100, Michal Kazior wrote:
>
>> + INIT_LIST_HEAD(&ar->arctxs);
>> INIT_LIST_HEAD(&ar->arvifs);
>
> I'm not sure why you have an interface list, but I'd say you don't need
> either since you have enumeration APIs:
>
> ieee80211_iterate_active_interfaces[_atomic,...]
>
> and
>
> ieee80211_iter_chan_contexts_atomic
>
> :)
I recall that at least there's one case where using these helpers is
impossible: drv_config() which can be called while mac80211 is already
holding iflist_mtx. ath10k needs to iterate over vifs and issue
blocking commands sometimes so it can't use atomic/rcu versions
either.
Michał
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
2015-01-30 13:02 ` Michal Kazior
@ 2015-01-30 13:04 ` Johannes Berg
-1 siblings, 0 replies; 58+ messages in thread
From: Johannes Berg @ 2015-01-30 13:04 UTC (permalink / raw)
To: Michal Kazior; +Cc: ath10k, linux-wireless
On Fri, 2015-01-30 at 14:02 +0100, Michal Kazior wrote:
> I recall that at least there's one case where using these helpers is
> impossible: drv_config() which can be called while mac80211 is already
> holding iflist_mtx. ath10k needs to iterate over vifs and issue
> blocking commands sometimes so it can't use atomic/rcu versions
> either.
If you wanted to use it, I wouldn't be averse to adding a locked version
that can only be used inside a few of such callbacks. With appropriate
lockdep warnings that would be safe enough, I think.
johannes
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
@ 2015-01-30 13:04 ` Johannes Berg
0 siblings, 0 replies; 58+ messages in thread
From: Johannes Berg @ 2015-01-30 13:04 UTC (permalink / raw)
To: Michal Kazior; +Cc: linux-wireless, ath10k
On Fri, 2015-01-30 at 14:02 +0100, Michal Kazior wrote:
> I recall that at least there's one case where using these helpers is
> impossible: drv_config() which can be called while mac80211 is already
> holding iflist_mtx. ath10k needs to iterate over vifs and issue
> blocking commands sometimes so it can't use atomic/rcu versions
> either.
If you wanted to use it, I wouldn't be averse to adding a locked version
that can only be used inside a few of such callbacks. With appropriate
lockdep warnings that would be safe enough, I think.
johannes
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
2015-01-30 12:58 ` Johannes Berg
@ 2015-01-30 13:06 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 13:06 UTC (permalink / raw)
To: Johannes Berg; +Cc: ath10k, linux-wireless
On 30 January 2015 at 13:58, Johannes Berg <johannes@sipsolutions.net> wrote:
>
>> +++ b/drivers/net/wireless/ath/ath10k/core.h
>
>> @@ -277,6 +282,7 @@ struct ath10k_vif {
>> dma_addr_t beacon_paddr;
>>
>> struct ath10k *ar;
>> + struct ath10k_chanctx *arctx;
>
> you also have vif->chanctx_conf pointer, which you could use
>
> ultimately it's a software architecture decision - personally I wouldn't
> want to duplicate all that data and the lists etc. in the driver when
> mac80211 has them, but that's just my opinion. :)
I'm a bit reluctant to freely use mac80211 owned structures out of
mac80211_ops callback context, i.e. from a tasklet fearing
inconsistencies. Or am I worrying unnecessarily? If so I guess I'll
redo this and use mac80211's structures directly :-)
Michał
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
@ 2015-01-30 13:06 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 13:06 UTC (permalink / raw)
To: Johannes Berg; +Cc: linux-wireless, ath10k
On 30 January 2015 at 13:58, Johannes Berg <johannes@sipsolutions.net> wrote:
>
>> +++ b/drivers/net/wireless/ath/ath10k/core.h
>
>> @@ -277,6 +282,7 @@ struct ath10k_vif {
>> dma_addr_t beacon_paddr;
>>
>> struct ath10k *ar;
>> + struct ath10k_chanctx *arctx;
>
> you also have vif->chanctx_conf pointer, which you could use
>
> ultimately it's a software architecture decision - personally I wouldn't
> want to duplicate all that data and the lists etc. in the driver when
> mac80211 has them, but that's just my opinion. :)
I'm a bit reluctant to freely use mac80211 owned structures out of
mac80211_ops callback context, i.e. from a tasklet fearing
inconsistencies. Or am I worrying unnecessarily? If so I guess I'll
redo this and use mac80211's structures directly :-)
Michał
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
2015-01-30 13:06 ` Michal Kazior
@ 2015-01-30 13:10 ` Johannes Berg
-1 siblings, 0 replies; 58+ messages in thread
From: Johannes Berg @ 2015-01-30 13:10 UTC (permalink / raw)
To: Michal Kazior; +Cc: ath10k, linux-wireless
On Fri, 2015-01-30 at 14:06 +0100, Michal Kazior wrote:
> I'm a bit reluctant to freely use mac80211 owned structures out of
> mac80211_ops callback context, i.e. from a tasklet fearing
> inconsistencies. Or am I worrying unnecessarily? If so I guess I'll
> redo this and use mac80211's structures directly :-)
Yeah that's a concern, we were just looking at something similar.
However, I think at least with channel contexts you should be fine since
mac80211 never really modifies them much, except for the width and # of
chains needed?
We've recently seen a similar issue with vif->bss_conf, and I'm
considering making that an RCU-protected pointer rather than the
embedded sub-struct, that way mac80211 can replace it atomically when
needed. I've yet to see if that's practical though.
johannes
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
@ 2015-01-30 13:10 ` Johannes Berg
0 siblings, 0 replies; 58+ messages in thread
From: Johannes Berg @ 2015-01-30 13:10 UTC (permalink / raw)
To: Michal Kazior; +Cc: linux-wireless, ath10k
On Fri, 2015-01-30 at 14:06 +0100, Michal Kazior wrote:
> I'm a bit reluctant to freely use mac80211 owned structures out of
> mac80211_ops callback context, i.e. from a tasklet fearing
> inconsistencies. Or am I worrying unnecessarily? If so I guess I'll
> redo this and use mac80211's structures directly :-)
Yeah that's a concern, we were just looking at something similar.
However, I think at least with channel contexts you should be fine since
mac80211 never really modifies them much, except for the width and # of
chains needed?
We've recently seen a similar issue with vif->bss_conf, and I'm
considering making that an RCU-protected pointer rather than the
embedded sub-struct, that way mac80211 can replace it atomically when
needed. I've yet to see if that's practical though.
johannes
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
2015-01-30 13:04 ` Johannes Berg
@ 2015-01-30 13:22 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 13:22 UTC (permalink / raw)
To: Johannes Berg; +Cc: ath10k, linux-wireless
On 30 January 2015 at 14:04, Johannes Berg <johannes@sipsolutions.net> wrote:
> On Fri, 2015-01-30 at 14:02 +0100, Michal Kazior wrote:
>
>> I recall that at least there's one case where using these helpers is
>> impossible: drv_config() which can be called while mac80211 is already
>> holding iflist_mtx. ath10k needs to iterate over vifs and issue
>> blocking commands sometimes so it can't use atomic/rcu versions
>> either.
>
> If you wanted to use it, I wouldn't be averse to adding a locked version
> that can only be used inside a few of such callbacks. With appropriate
> lockdep warnings that would be safe enough, I think.
You'd probably have to add quite a few mutex_lock(iflist_mtx) around
drv_*() calls (not directly but somewhere at their call trees) to
guarantee driver can use lock-free iterate() version (which doesn't
exist yet). This could be tricky.
Michał
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
@ 2015-01-30 13:22 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 13:22 UTC (permalink / raw)
To: Johannes Berg; +Cc: linux-wireless, ath10k
On 30 January 2015 at 14:04, Johannes Berg <johannes@sipsolutions.net> wrote:
> On Fri, 2015-01-30 at 14:02 +0100, Michal Kazior wrote:
>
>> I recall that at least there's one case where using these helpers is
>> impossible: drv_config() which can be called while mac80211 is already
>> holding iflist_mtx. ath10k needs to iterate over vifs and issue
>> blocking commands sometimes so it can't use atomic/rcu versions
>> either.
>
> If you wanted to use it, I wouldn't be averse to adding a locked version
> that can only be used inside a few of such callbacks. With appropriate
> lockdep warnings that would be safe enough, I think.
You'd probably have to add quite a few mutex_lock(iflist_mtx) around
drv_*() calls (not directly but somewhere at their call trees) to
guarantee driver can use lock-free iterate() version (which doesn't
exist yet). This could be tricky.
Michał
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
2015-01-30 13:22 ` Michal Kazior
@ 2015-01-30 13:31 ` Johannes Berg
-1 siblings, 0 replies; 58+ messages in thread
From: Johannes Berg @ 2015-01-30 13:31 UTC (permalink / raw)
To: Michal Kazior; +Cc: ath10k, linux-wireless
On Fri, 2015-01-30 at 14:22 +0100, Michal Kazior wrote:
> You'd probably have to add quite a few mutex_lock(iflist_mtx) around
> drv_*() calls (not directly but somewhere at their call trees) to
> guarantee driver can use lock-free iterate() version (which doesn't
> exist yet). This could be tricky.
Well, I was thinking you'd only use it in some places now - but it does
seem a bit difficult to maintain.
We've not typically had to worry about using the synchronous versions
much since we mostly just need a single interface so we just pass it out
and use it there, or so.
johannes
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
@ 2015-01-30 13:31 ` Johannes Berg
0 siblings, 0 replies; 58+ messages in thread
From: Johannes Berg @ 2015-01-30 13:31 UTC (permalink / raw)
To: Michal Kazior; +Cc: linux-wireless, ath10k
On Fri, 2015-01-30 at 14:22 +0100, Michal Kazior wrote:
> You'd probably have to add quite a few mutex_lock(iflist_mtx) around
> drv_*() calls (not directly but somewhere at their call trees) to
> guarantee driver can use lock-free iterate() version (which doesn't
> exist yet). This could be tricky.
Well, I was thinking you'd only use it in some places now - but it does
seem a bit difficult to maintain.
We've not typically had to worry about using the synchronous versions
much since we mostly just need a single interface so we just pass it out
and use it there, or so.
johannes
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
2015-01-30 13:31 ` Johannes Berg
@ 2015-01-30 13:47 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 13:47 UTC (permalink / raw)
To: Johannes Berg; +Cc: ath10k, linux-wireless
On 30 January 2015 at 14:31, Johannes Berg <johannes@sipsolutions.net> wrote:
> On Fri, 2015-01-30 at 14:22 +0100, Michal Kazior wrote:
>
>> You'd probably have to add quite a few mutex_lock(iflist_mtx) around
>> drv_*() calls (not directly but somewhere at their call trees) to
>> guarantee driver can use lock-free iterate() version (which doesn't
>> exist yet). This could be tricky.
>
> Well, I was thinking you'd only use it in some places now - but it does
> seem a bit difficult to maintain.
>
> We've not typically had to worry about using the synchronous versions
> much since we mostly just need a single interface so we just pass it out
> and use it there, or so.
I'm not sure if you refer to iwlwifi or mac80211 now? If it's the
latter: even if you have an ops with, e.g. vif pointer, driver may
still need to iterate over interfaces in order to propagate some
side-effect changes or aggregate some values/recalculate.
Michał
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
@ 2015-01-30 13:47 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 13:47 UTC (permalink / raw)
To: Johannes Berg; +Cc: linux-wireless, ath10k
On 30 January 2015 at 14:31, Johannes Berg <johannes@sipsolutions.net> wrote:
> On Fri, 2015-01-30 at 14:22 +0100, Michal Kazior wrote:
>
>> You'd probably have to add quite a few mutex_lock(iflist_mtx) around
>> drv_*() calls (not directly but somewhere at their call trees) to
>> guarantee driver can use lock-free iterate() version (which doesn't
>> exist yet). This could be tricky.
>
> Well, I was thinking you'd only use it in some places now - but it does
> seem a bit difficult to maintain.
>
> We've not typically had to worry about using the synchronous versions
> much since we mostly just need a single interface so we just pass it out
> and use it there, or so.
I'm not sure if you refer to iwlwifi or mac80211 now? If it's the
latter: even if you have an ops with, e.g. vif pointer, driver may
still need to iterate over interfaces in order to propagate some
side-effect changes or aggregate some values/recalculate.
Michał
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
2015-01-30 13:10 ` Johannes Berg
@ 2015-01-30 14:01 ` Michal Kazior
-1 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 14:01 UTC (permalink / raw)
To: Johannes Berg; +Cc: ath10k, linux-wireless
On 30 January 2015 at 14:10, Johannes Berg <johannes@sipsolutions.net> wrote:
> On Fri, 2015-01-30 at 14:06 +0100, Michal Kazior wrote:
>
>> I'm a bit reluctant to freely use mac80211 owned structures out of
>> mac80211_ops callback context, i.e. from a tasklet fearing
>> inconsistencies. Or am I worrying unnecessarily? If so I guess I'll
>> redo this and use mac80211's structures directly :-)
>
> Yeah that's a concern, we were just looking at something similar.
> However, I think at least with channel contexts you should be fine since
> mac80211 never really modifies them much, except for the width and # of
> chains needed?
With `width` you'll change `center_freq1` in many cases. Reading a
pair of old-and-new of each may not necessarily be fatal but may
introduce subtle bugs that are hard to debug. Even if the current code
doesn't really use these values out of mac80211 callback context now
it may become a problem later.
I don't know. I'll think about this a bit more. You *do* have a point.
> We've recently seen a similar issue with vif->bss_conf, and I'm
> considering making that an RCU-protected pointer rather than the
> embedded sub-struct, that way mac80211 can replace it atomically when
> needed. I've yet to see if that's practical though.
It'd be lovely if I could freely read mac80211 structures from
whatever context I want without any worries but I think you'd have to
introduce explicit locking between mac80211 and drivers or go ham with
RCU :-)
Michał
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
@ 2015-01-30 14:01 ` Michal Kazior
0 siblings, 0 replies; 58+ messages in thread
From: Michal Kazior @ 2015-01-30 14:01 UTC (permalink / raw)
To: Johannes Berg; +Cc: linux-wireless, ath10k
On 30 January 2015 at 14:10, Johannes Berg <johannes@sipsolutions.net> wrote:
> On Fri, 2015-01-30 at 14:06 +0100, Michal Kazior wrote:
>
>> I'm a bit reluctant to freely use mac80211 owned structures out of
>> mac80211_ops callback context, i.e. from a tasklet fearing
>> inconsistencies. Or am I worrying unnecessarily? If so I guess I'll
>> redo this and use mac80211's structures directly :-)
>
> Yeah that's a concern, we were just looking at something similar.
> However, I think at least with channel contexts you should be fine since
> mac80211 never really modifies them much, except for the width and # of
> chains needed?
With `width` you'll change `center_freq1` in many cases. Reading a
pair of old-and-new of each may not necessarily be fatal but may
introduce subtle bugs that are hard to debug. Even if the current code
doesn't really use these values out of mac80211 callback context now
it may become a problem later.
I don't know. I'll think about this a bit more. You *do* have a point.
> We've recently seen a similar issue with vif->bss_conf, and I'm
> considering making that an RCU-protected pointer rather than the
> embedded sub-struct, that way mac80211 can replace it atomically when
> needed. I've yet to see if that's practical though.
It'd be lovely if I could freely read mac80211 structures from
whatever context I want without any worries but I think you'd have to
introduce explicit locking between mac80211 and drivers or go ham with
RCU :-)
Michał
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
2015-01-30 13:47 ` Michal Kazior
@ 2015-01-30 14:06 ` Johannes Berg
-1 siblings, 0 replies; 58+ messages in thread
From: Johannes Berg @ 2015-01-30 14:06 UTC (permalink / raw)
To: Michal Kazior; +Cc: ath10k, linux-wireless
On Fri, 2015-01-30 at 14:47 +0100, Michal Kazior wrote:
> I'm not sure if you refer to iwlwifi or mac80211 now? If it's the
> latter: even if you have an ops with, e.g. vif pointer, driver may
> still need to iterate over interfaces in order to propagate some
> side-effect changes or aggregate some values/recalculate.
I was referring mostly to iwlwifi :)
johannes
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
@ 2015-01-30 14:06 ` Johannes Berg
0 siblings, 0 replies; 58+ messages in thread
From: Johannes Berg @ 2015-01-30 14:06 UTC (permalink / raw)
To: Michal Kazior; +Cc: linux-wireless, ath10k
On Fri, 2015-01-30 at 14:47 +0100, Michal Kazior wrote:
> I'm not sure if you refer to iwlwifi or mac80211 now? If it's the
> latter: even if you have an ops with, e.g. vif pointer, driver may
> still need to iterate over interfaces in order to propagate some
> side-effect changes or aggregate some values/recalculate.
I was referring mostly to iwlwifi :)
johannes
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
2015-01-30 14:01 ` Michal Kazior
@ 2015-01-30 14:10 ` Johannes Berg
-1 siblings, 0 replies; 58+ messages in thread
From: Johannes Berg @ 2015-01-30 14:10 UTC (permalink / raw)
To: Michal Kazior; +Cc: ath10k, linux-wireless
On Fri, 2015-01-30 at 15:01 +0100, Michal Kazior wrote:
> With `width` you'll change `center_freq1` in many cases. Reading a
> pair of old-and-new of each may not necessarily be fatal but may
> introduce subtle bugs that are hard to debug. Even if the current code
> doesn't really use these values out of mac80211 callback context now
> it may become a problem later.
Yes, this is a good point. Like I said (below), we had a similar issue
with the bss_conf, in our case that was two timestamps there that need
to be read together. Right now we're the only ones using those and only
within the context of the callback, so we can just document that they're
only valid together in such a context, but it's a more general issue.
> > We've recently seen a similar issue with vif->bss_conf, and I'm
> > considering making that an RCU-protected pointer rather than the
> > embedded sub-struct, that way mac80211 can replace it atomically when
> > needed. I've yet to see if that's practical though.
>
> It'd be lovely if I could freely read mac80211 structures from
> whatever context I want without any worries but I think you'd have to
> introduce explicit locking between mac80211 and drivers or go ham with
> RCU :-)
Yeah, locking there would perhaps not be such a bad idea? Either that or
RCU. Though we need RCU already in many contexts (like a tasklet
iterating the list of interfaces) but perhaps configuration accesses
could be contained to mutex-capable contexts? I don't know.
We did have a similar problem between cfg80211 and mac80211 and decided
to move the cfg80211 mutex to the public part so that mac80211 (or other
cfg80211 drivers, of course) could use it - and in fact the cfg80211 API
requires that now in some places - but we haven't really considered this
so much in the context of drivers.
I think this would make a good discussion topic for the wireless
workshop :)
johannes
^ permalink raw reply [flat|nested] 58+ messages in thread
* Re: [PATCH v2 2/7] ath10k: implement chanctx API
@ 2015-01-30 14:10 ` Johannes Berg
0 siblings, 0 replies; 58+ messages in thread
From: Johannes Berg @ 2015-01-30 14:10 UTC (permalink / raw)
To: Michal Kazior; +Cc: linux-wireless, ath10k
On Fri, 2015-01-30 at 15:01 +0100, Michal Kazior wrote:
> With `width` you'll change `center_freq1` in many cases. Reading a
> pair of old-and-new of each may not necessarily be fatal but may
> introduce subtle bugs that are hard to debug. Even if the current code
> doesn't really use these values out of mac80211 callback context now
> it may become a problem later.
Yes, this is a good point. Like I said (below), we had a similar issue
with the bss_conf, in our case that was two timestamps there that need
to be read together. Right now we're the only ones using those and only
within the context of the callback, so we can just document that they're
only valid together in such a context, but it's a more general issue.
> > We've recently seen a similar issue with vif->bss_conf, and I'm
> > considering making that an RCU-protected pointer rather than the
> > embedded sub-struct, that way mac80211 can replace it atomically when
> > needed. I've yet to see if that's practical though.
>
> It'd be lovely if I could freely read mac80211 structures from
> whatever context I want without any worries but I think you'd have to
> introduce explicit locking between mac80211 and drivers or go ham with
> RCU :-)
Yeah, locking there would perhaps not be such a bad idea? Either that or
RCU. Though we need RCU already in many contexts (like a tasklet
iterating the list of interfaces) but perhaps configuration accesses
could be contained to mutex-capable contexts? I don't know.
We did have a similar problem between cfg80211 and mac80211 and decided
to move the cfg80211 mutex to the public part so that mac80211 (or other
cfg80211 drivers, of course) could use it - and in fact the cfg80211 API
requires that now in some places - but we haven't really considered this
so much in the context of drivers.
I think this would make a good discussion topic for the wireless
workshop :)
johannes
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 58+ messages in thread
end of thread, other threads:[~2015-01-30 14:10 UTC | newest]
Thread overview: 58+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-01-30 8:41 [PATCH 0/7] ath10k: add multi-channel support Michal Kazior
2015-01-30 8:41 ` Michal Kazior
2015-01-30 8:41 ` [PATCH 1/7] ath10k: allow empty ssid vdev config Michal Kazior
2015-01-30 8:41 ` Michal Kazior
2015-01-30 8:41 ` [PATCH 2/7] ath10k: implement chanctx API Michal Kazior
2015-01-30 8:41 ` Michal Kazior
2015-01-30 10:44 ` Michal Kazior
2015-01-30 10:44 ` Michal Kazior
2015-01-30 8:41 ` [PATCH 3/7] ath10k: implement adaptive qcs command Michal Kazior
2015-01-30 8:41 ` Michal Kazior
2015-01-30 8:41 ` [PATCH 4/7] ath10k: protect ar->arvifs linking with data_lock Michal Kazior
2015-01-30 8:41 ` Michal Kazior
2015-01-30 8:41 ` [PATCH 5/7] ath10k: rework tx queue locking Michal Kazior
2015-01-30 8:41 ` Michal Kazior
2015-01-30 8:41 ` [PATCH 6/7] ath10k: implement tx pause wmi event Michal Kazior
2015-01-30 8:41 ` Michal Kazior
2015-01-30 8:41 ` [PATCH 7/7] ath10k: enable multi-channel on supported devices Michal Kazior
2015-01-30 8:41 ` Michal Kazior
2015-01-30 12:31 ` [PATCH v2 0/7] ath10k: add multi-channel support Michal Kazior
2015-01-30 12:31 ` Michal Kazior
2015-01-30 12:31 ` [PATCH v2 1/7] ath10k: allow empty ssid vdev config Michal Kazior
2015-01-30 12:31 ` Michal Kazior
2015-01-30 12:31 ` [PATCH v2 2/7] ath10k: implement chanctx API Michal Kazior
2015-01-30 12:31 ` Michal Kazior
2015-01-30 12:45 ` Johannes Berg
2015-01-30 12:45 ` Johannes Berg
2015-01-30 13:02 ` Michal Kazior
2015-01-30 13:02 ` Michal Kazior
2015-01-30 13:04 ` Johannes Berg
2015-01-30 13:04 ` Johannes Berg
2015-01-30 13:22 ` Michal Kazior
2015-01-30 13:22 ` Michal Kazior
2015-01-30 13:31 ` Johannes Berg
2015-01-30 13:31 ` Johannes Berg
2015-01-30 13:47 ` Michal Kazior
2015-01-30 13:47 ` Michal Kazior
2015-01-30 14:06 ` Johannes Berg
2015-01-30 14:06 ` Johannes Berg
2015-01-30 12:58 ` Johannes Berg
2015-01-30 12:58 ` Johannes Berg
2015-01-30 13:06 ` Michal Kazior
2015-01-30 13:06 ` Michal Kazior
2015-01-30 13:10 ` Johannes Berg
2015-01-30 13:10 ` Johannes Berg
2015-01-30 14:01 ` Michal Kazior
2015-01-30 14:01 ` Michal Kazior
2015-01-30 14:10 ` Johannes Berg
2015-01-30 14:10 ` Johannes Berg
2015-01-30 12:31 ` [PATCH v2 3/7] ath10k: implement adaptive qcs command Michal Kazior
2015-01-30 12:31 ` Michal Kazior
2015-01-30 12:31 ` [PATCH v2 4/7] ath10k: protect ar->arvifs linking with data_lock Michal Kazior
2015-01-30 12:31 ` Michal Kazior
2015-01-30 12:31 ` [PATCH v2 5/7] ath10k: rework tx queue locking Michal Kazior
2015-01-30 12:31 ` Michal Kazior
2015-01-30 12:31 ` [PATCH v2 6/7] ath10k: implement tx pause wmi event Michal Kazior
2015-01-30 12:31 ` Michal Kazior
2015-01-30 12:31 ` [PATCH v2 7/7] ath10k: enable multi-channel on supported devices Michal Kazior
2015-01-30 12:31 ` Michal Kazior
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