Add new ampdu_action ops to support receiver BA.
The BA initiator session management in FW independently.
Signed-off-by: Shahar Levi <shahar_levi@xxxxxx>
---
Dependencies:
- BA Initiator patches have a runtime dependency on commit
"[RFC v6] wl1271: BA Initiator support"
Limitation:
- For now only one BA per direction is supported
Changes from v1:
- Add mutex and (wl->state == WL1271_STATE_OFF) protection
- "BIT(tid)" instead of "BIT(0) << tid"
- Move all event code move to the next patch
Changes from v2:
- Add supported FW version auto detection mechanism
Changes from v3:
- Stylish
Changes from v4:
- More stylish
drivers/net/wireless/wl12xx/acx.c | 34 +++++++++++++++++++
drivers/net/wireless/wl12xx/acx.h | 21 ++++++++++++
drivers/net/wireless/wl12xx/init.c | 1 -
drivers/net/wireless/wl12xx/main.c | 60 ++++++++++++++++++++++++++++++++++
drivers/net/wireless/wl12xx/wl12xx.h | 1 -
5 files changed, 115 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/wl12xx/acx.c b/drivers/net/wireless/wl12xx/acx.c
index 588056a..bff586a 100644
--- a/drivers/net/wireless/wl12xx/acx.c
+++ b/drivers/net/wireless/wl12xx/acx.c
@@ -1393,6 +1393,40 @@ out:
return ret;
}
+/* setup BA session receiver setting in the FW. */
+int wl1271_acx_set_ba_receiver_session(struct wl1271 *wl, u8 tid_index, u16 ssn,
+ bool enable)
+{
+ struct wl1271_acx_ba_receiver_setup *acx;
+ int ret;
+
+ wl1271_debug(DEBUG_ACX, "acx ba receiver session setting");
+
+ acx = kzalloc(sizeof(*acx), GFP_KERNEL);
+ if (!acx) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ /* Single link for now */
+ acx->link_id = 1;
+ acx->tid = tid_index;
+ acx->enable = enable;
+ acx->win_size = 0;
+ acx->ssn = ssn;
+
+ ret = wl1271_cmd_configure(wl, ACX_BA_SESSION_RX_SETUP, acx,
+ sizeof(*acx));
+ if (ret < 0) {
+ wl1271_warning("acx ba receiver session failed: %d", ret);
+ goto out;
+ }
+
+out:
+ kfree(acx);
+ return ret;
+}
+
int wl1271_acx_tsf_info(struct wl1271 *wl, u64 *mactime)
{
struct wl1271_acx_fw_tsf_information *tsf_info;
diff --git a/drivers/net/wireless/wl12xx/acx.h b/drivers/net/wireless/wl12xx/acx.h
index c0abaf4..c683801 100644
--- a/drivers/net/wireless/wl12xx/acx.h
+++ b/drivers/net/wireless/wl12xx/acx.h
@@ -1095,6 +1095,25 @@ struct wl1271_acx_ba_session_policy {
u8 padding[3];
} __packed;
+struct wl1271_acx_ba_receiver_setup {
+ struct acx_header header;
+
+ /* Specifies Link Id, Range 0-31, 0xFF means ANY Link Id */
+ u8 link_id;
+
+ u8 tid;
+
+ u8 enable;
+
+ u8 padding[1];
+
+ /* Windows size in number of packets */
+ u16 win_size;
+
+ /* BA session starting sequence number. RANGE 0-FFF */
+ u16 ssn;
+} __packed;
+
struct wl1271_acx_fw_tsf_information {
struct acx_header header;
@@ -1246,6 +1265,8 @@ int wl1271_acx_set_ht_information(struct wl1271 *wl,
int wl1271_acx_set_ba_session(struct wl1271 *wl,
enum ieee80211_back_parties direction,
u8 tid_index, u8 policy);
+int wl1271_acx_set_ba_receiver_session(struct wl1271 *wl, u8 tid_index, u16 ssn,
+ bool enable);
int wl1271_acx_tsf_info(struct wl1271 *wl, u64 *mactime);
int wl1271_acx_max_tx_retry(struct wl1271 *wl);
diff --git a/drivers/net/wireless/wl12xx/init.c b/drivers/net/wireless/wl12xx/init.c
index 0d939a2..fe6ea71 100644
--- a/drivers/net/wireless/wl12xx/init.c
+++ b/drivers/net/wireless/wl12xx/init.c
@@ -473,7 +473,6 @@ static int wl1271_set_ba_policies(struct wl1271 *wl)
u8 ret = 0;
/* Reset the BA RX indicators */
- wl->ba_allowed = true;
wl->ba_rx_bitmap = 0;
/* validate that FW support BA */
diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c
index 542b1de..fc7da94 100644
--- a/drivers/net/wireless/wl12xx/main.c
+++ b/drivers/net/wireless/wl12xx/main.c
@@ -2717,6 +2717,65 @@ out:
return ret;
}
+int wl1271_op_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ enum ieee80211_ampdu_mlme_action action,
+ struct ieee80211_sta *sta, u16 tid, u16 *ssn)
+{
+ struct wl1271 *wl = hw->priv;
+ int ret;
+
+ mutex_lock(&wl->mutex);
+
+ if (unlikely(wl->state == WL1271_STATE_OFF)) {
+ ret = -EAGAIN;
+ goto out;
+ }
+
+ ret = wl1271_ps_elp_wakeup(wl, false);
+ if (ret < 0)
+ goto out;
+
+ switch (action) {
+ case IEEE80211_AMPDU_RX_START:
+ if (wl->ba_support) {
+ ret = wl1271_acx_set_ba_receiver_session(wl, tid, *ssn,
+ true);
+ if (!ret)
+ wl->ba_rx_bitmap |= BIT(tid);
+ } else {
+ ret = -ENOTSUPP;
+ }
+ break;
+
+ case IEEE80211_AMPDU_RX_STOP:
+ ret = wl1271_acx_set_ba_receiver_session(wl, tid, 0, false);
+ if (!ret)
+ wl->ba_rx_bitmap &= ~BIT(tid);
+ break;
+
+ /*
+ * The BA initiator session management in FW independently.
+ * Falling break here on purpose for all TX APDU commands.
+ */
+ case IEEE80211_AMPDU_TX_START:
+ case IEEE80211_AMPDU_TX_STOP:
+ case IEEE80211_AMPDU_TX_OPERATIONAL:
+ ret = -EINVAL;
+ break;
+
+ default:
+ wl1271_error("Incorrect ampdu action id=%x\n", action);
+ ret = -EINVAL;
+ }
+
+ wl1271_ps_elp_sleep(wl);
+
+out:
+ mutex_unlock(&wl->mutex);
+
+ return ret;
+}
+
/* can't be const, mac80211 writes to this */
static struct ieee80211_rate wl1271_rates[] = {
{ .bitrate = 10,
@@ -2965,6 +3024,7 @@ static const struct ieee80211_ops wl1271_ops = {
.get_survey = wl1271_op_get_survey,
.sta_add = wl1271_op_sta_add,
.sta_remove = wl1271_op_sta_remove,
+ .ampdu_action = wl1271_op_ampdu_action,
CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
};
diff --git a/drivers/net/wireless/wl12xx/wl12xx.h b/drivers/net/wireless/wl12xx/wl12xx.h
index 443befc..a3d1179 100644
--- a/drivers/net/wireless/wl12xx/wl12xx.h
+++ b/drivers/net/wireless/wl12xx/wl12xx.h
@@ -473,7 +473,6 @@ struct wl1271 {
/* RX BA constraint value */
bool ba_support;
- u8 ba_allowed;
u8 ba_rx_bitmap;
};
--
1.7.0.4
--
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