/*
- * Copyright (c) 2014-2015 Qualcomm Atheros, Inc.
+ * Copyright (c) 2014-2016 Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
return min(max_agg_size, req_agg_wsize);
}
-/* Block Ack - Rx side (recipient */
+/* Block Ack - Rx side (recipient) */
int wil_addba_rx_request(struct wil6210_priv *wil, u8 cidxtid,
u8 dialog_token, __le16 ba_param_set,
__le16 ba_timeout, __le16 ba_seq_ctrl)
-{
- struct wil_back_rx *req = kzalloc(sizeof(*req), GFP_KERNEL);
-
- if (!req)
- return -ENOMEM;
-
- req->cidxtid = cidxtid;
- req->dialog_token = dialog_token;
- req->ba_param_set = le16_to_cpu(ba_param_set);
- req->ba_timeout = le16_to_cpu(ba_timeout);
- req->ba_seq_ctrl = le16_to_cpu(ba_seq_ctrl);
-
- mutex_lock(&wil->back_rx_mutex);
- list_add_tail(&req->list, &wil->back_rx_pending);
- mutex_unlock(&wil->back_rx_mutex);
-
- queue_work(wil->wq_service, &wil->back_rx_worker);
-
- return 0;
-}
-
-static void wil_back_rx_handle(struct wil6210_priv *wil,
- struct wil_back_rx *req)
__acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
{
+ u16 param_set = le16_to_cpu(ba_param_set);
+ u16 agg_timeout = le16_to_cpu(ba_timeout);
+ u16 seq_ctrl = le16_to_cpu(ba_seq_ctrl);
struct wil_sta_info *sta;
u8 cid, tid;
u16 agg_wsize = 0;
* bits 2..5: TID
* bits 6..15: buffer size
*/
- u16 req_agg_wsize = WIL_GET_BITS(req->ba_param_set, 6, 15);
- bool agg_amsdu = !!(req->ba_param_set & BIT(0));
- int ba_policy = req->ba_param_set & BIT(1);
- u16 agg_timeout = req->ba_timeout;
+ u16 req_agg_wsize = WIL_GET_BITS(param_set, 6, 15);
+ bool agg_amsdu = !!(param_set & BIT(0));
+ int ba_policy = param_set & BIT(1);
u16 status = WLAN_STATUS_SUCCESS;
- u16 ssn = req->ba_seq_ctrl >> 4;
+ u16 ssn = seq_ctrl >> 4;
struct wil_tid_ampdu_rx *r;
- int rc;
+ int rc = 0;
might_sleep();
- parse_cidxtid(req->cidxtid, &cid, &tid);
+ parse_cidxtid(cidxtid, &cid, &tid);
/* sanity checks */
if (cid >= WIL6210_MAX_CID) {
wil_err(wil, "BACK: invalid CID %d\n", cid);
- return;
+ rc = -EINVAL;
+ goto out;
}
sta = &wil->sta[cid];
if (sta->status != wil_sta_connected) {
wil_err(wil, "BACK: CID %d not connected\n", cid);
- return;
+ rc = -EINVAL;
+ goto out;
}
wil_dbg_wmi(wil,
"ADDBA request for CID %d %pM TID %d size %d timeout %d AMSDU%s policy %d token %d SSN 0x%03x\n",
- cid, sta->addr, tid, req_agg_wsize, req->ba_timeout,
- agg_amsdu ? "+" : "-", !!ba_policy, req->dialog_token, ssn);
+ cid, sta->addr, tid, req_agg_wsize, agg_timeout,
+ agg_amsdu ? "+" : "-", !!ba_policy, dialog_token, ssn);
/* apply policies */
if (ba_policy) {
if (status == WLAN_STATUS_SUCCESS)
agg_wsize = wil_agg_size(wil, req_agg_wsize);
- rc = wmi_addba_rx_resp(wil, cid, tid, req->dialog_token, status,
+ rc = wmi_addba_rx_resp(wil, cid, tid, dialog_token, status,
agg_amsdu, agg_wsize, agg_timeout);
- if (rc || (status != WLAN_STATUS_SUCCESS))
- return;
+ if (rc || (status != WLAN_STATUS_SUCCESS)) {
+ wil_err(wil, "%s: do not apply ba, rc(%d), status(%d)\n",
+ __func__, rc, status);
+ goto out;
+ }
/* apply */
r = wil_tid_ampdu_rx_alloc(wil, agg_wsize, ssn);
wil_tid_ampdu_rx_free(wil, sta->tid_rx[tid]);
sta->tid_rx[tid] = r;
spin_unlock_bh(&sta->tid_rx_lock);
-}
-
-void wil_back_rx_flush(struct wil6210_priv *wil)
-{
- struct wil_back_rx *evt, *t;
- wil_dbg_misc(wil, "%s()\n", __func__);
-
- mutex_lock(&wil->back_rx_mutex);
-
- list_for_each_entry_safe(evt, t, &wil->back_rx_pending, list) {
- list_del(&evt->list);
- kfree(evt);
- }
-
- mutex_unlock(&wil->back_rx_mutex);
-}
-
-/* Retrieve next ADDBA request from the pending list */
-static struct list_head *next_back_rx(struct wil6210_priv *wil)
-{
- struct list_head *ret = NULL;
-
- mutex_lock(&wil->back_rx_mutex);
-
- if (!list_empty(&wil->back_rx_pending)) {
- ret = wil->back_rx_pending.next;
- list_del(ret);
- }
-
- mutex_unlock(&wil->back_rx_mutex);
-
- return ret;
-}
-
-void wil_back_rx_worker(struct work_struct *work)
-{
- struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
- back_rx_worker);
- struct wil_back_rx *evt;
- struct list_head *lh;
-
- while ((lh = next_back_rx(wil)) != NULL) {
- evt = list_entry(lh, struct wil_back_rx, list);
-
- wil_back_rx_handle(wil, evt);
- kfree(evt);
- }
+out:
+ return rc;
}
-/* BACK - Tx (originator) side */
-static void wil_back_tx_handle(struct wil6210_priv *wil,
- struct wil_back_tx *req)
+/* BACK - Tx side (originator) */
+int wil_addba_tx_request(struct wil6210_priv *wil, u8 ringid, u16 wsize)
{
- struct vring_tx_data *txdata = &wil->vring_tx_data[req->ringid];
- int rc;
+ u8 agg_wsize = wil_agg_size(wil, wsize);
+ u16 agg_timeout = 0;
+ struct vring_tx_data *txdata = &wil->vring_tx_data[ringid];
+ int rc = 0;
if (txdata->addba_in_progress) {
wil_dbg_misc(wil, "ADDBA for vring[%d] already in progress\n",
- req->ringid);
- return;
+ ringid);
+ goto out;
}
if (txdata->agg_wsize) {
wil_dbg_misc(wil,
- "ADDBA for vring[%d] already established wsize %d\n",
- req->ringid, txdata->agg_wsize);
- return;
+ "ADDBA for vring[%d] already done for wsize %d\n",
+ ringid, txdata->agg_wsize);
+ goto out;
}
txdata->addba_in_progress = true;
- rc = wmi_addba(wil, req->ringid, req->agg_wsize, req->agg_timeout);
- if (rc)
+ rc = wmi_addba(wil, ringid, agg_wsize, agg_timeout);
+ if (rc) {
+ wil_err(wil, "%s: wmi_addba failed, rc (%d)", __func__, rc);
txdata->addba_in_progress = false;
-}
-
-static struct list_head *next_back_tx(struct wil6210_priv *wil)
-{
- struct list_head *ret = NULL;
-
- mutex_lock(&wil->back_tx_mutex);
-
- if (!list_empty(&wil->back_tx_pending)) {
- ret = wil->back_tx_pending.next;
- list_del(ret);
- }
-
- mutex_unlock(&wil->back_tx_mutex);
-
- return ret;
-}
-
-void wil_back_tx_worker(struct work_struct *work)
-{
- struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
- back_tx_worker);
- struct wil_back_tx *evt;
- struct list_head *lh;
-
- while ((lh = next_back_tx(wil)) != NULL) {
- evt = list_entry(lh, struct wil_back_tx, list);
-
- wil_back_tx_handle(wil, evt);
- kfree(evt);
}
-}
-
-void wil_back_tx_flush(struct wil6210_priv *wil)
-{
- struct wil_back_tx *evt, *t;
-
- wil_dbg_misc(wil, "%s()\n", __func__);
-
- mutex_lock(&wil->back_tx_mutex);
-
- list_for_each_entry_safe(evt, t, &wil->back_tx_pending, list) {
- list_del(&evt->list);
- kfree(evt);
- }
-
- mutex_unlock(&wil->back_tx_mutex);
-}
-
-int wil_addba_tx_request(struct wil6210_priv *wil, u8 ringid, u16 wsize)
-{
- struct wil_back_tx *req = kzalloc(sizeof(*req), GFP_KERNEL);
-
- if (!req)
- return -ENOMEM;
- req->ringid = ringid;
- req->agg_wsize = wil_agg_size(wil, wsize);
- req->agg_timeout = 0;
-
- mutex_lock(&wil->back_tx_mutex);
- list_add_tail(&req->list, &wil->back_tx_pending);
- mutex_unlock(&wil->back_tx_mutex);
-
- queue_work(wil->wq_service, &wil->back_tx_worker);
-
- return 0;
+out:
+ return rc;
}
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