snprintf(name, sizeof(name), "tx_%2d", i);
- seq_printf(s, "\n%pM CID %d TID %d [%3d|%3d] idle %3d%%\n",
- wil->sta[cid].addr, cid, tid, used, avail,
- (int)idle);
+ seq_printf(s,
+ "\n%pM CID %d TID %d BACK([%d] %d TU) [%3d|%3d] idle %3d%%\n",
+ wil->sta[cid].addr, cid, tid,
+ txdata->agg_wsize, txdata->agg_timeout,
+ used, avail, (int)idle);
wil_print_vring(s, wil, name, vring, '_', 'H');
}
.open = simple_open,
};
+/* block ack for vring 0
+ * write 0 to it to trigger DELBA
+ * write positive agg_wsize to trigger ADDBA
+ */
+static ssize_t wil_write_addba(struct file *file, const char __user *buf,
+ size_t len, loff_t *ppos)
+{
+ struct wil6210_priv *wil = file->private_data;
+ int rc;
+ uint agg_wsize;
+ char *kbuf = kmalloc(len + 1, GFP_KERNEL);
+
+ if (!kbuf)
+ return -ENOMEM;
+
+ rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
+ if (rc != len) {
+ kfree(kbuf);
+ return rc >= 0 ? -EIO : rc;
+ }
+
+ kbuf[len] = '\0';
+ rc = kstrtouint(kbuf, 0, &agg_wsize);
+ kfree(kbuf);
+
+ if (rc)
+ return rc;
+
+ if (!wil->vring_tx[0].va)
+ return -EINVAL;
+
+ if (agg_wsize > 0)
+ wmi_addba(wil, 0, agg_wsize, 0);
+ else
+ wmi_delba(wil, 0, 0);
+
+ return len;
+}
+
+static const struct file_operations fops_addba = {
+ .write = wil_write_addba,
+ .open = simple_open,
+};
+
/*---tx_mgmt---*/
/* Write mgmt frame to this file to send it */
static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf,
{"rxon", S_IWUSR, &fops_rxon},
{"tx_mgmt", S_IWUSR, &fops_txmgmt},
{"wmi_send", S_IWUSR, &fops_wmi},
+ {"addba", S_IWUSR, &fops_addba},
{"temp", S_IRUGO, &fops_temp},
{"freq", S_IRUGO, &fops_freq},
{"link", S_IRUGO, &fops_link},
mutex_init(&wil->mutex);
mutex_init(&wil->wmi_mutex);
+ mutex_init(&wil->back_rx_mutex);
init_completion(&wil->wmi_ready);
init_completion(&wil->wmi_call);
INIT_WORK(&wil->disconnect_worker, wil_disconnect_worker);
INIT_WORK(&wil->wmi_event_worker, wmi_event_worker);
INIT_WORK(&wil->fw_error_worker, wil_fw_error_worker);
+ INIT_WORK(&wil->back_rx_worker, wil_back_rx_worker);
INIT_LIST_HEAD(&wil->pending_wmi_ev);
+ INIT_LIST_HEAD(&wil->back_rx_pending);
spin_lock_init(&wil->wmi_ev_lock);
init_waitqueue_head(&wil->wq);
- wil->wmi_wq = create_singlethread_workqueue(WIL_NAME"_wmi");
+ wil->wmi_wq = create_singlethread_workqueue(WIL_NAME "_wmi");
if (!wil->wmi_wq)
return -EAGAIN;
- wil->wmi_wq_conn = create_singlethread_workqueue(WIL_NAME"_connect");
- if (!wil->wmi_wq_conn) {
- destroy_workqueue(wil->wmi_wq);
- return -EAGAIN;
- }
+ wil->wq_service = create_singlethread_workqueue(WIL_NAME "_service");
+ if (!wil->wq_service)
+ goto out_wmi_wq;
wil->last_fw_recovery = jiffies;
wil->itr_trsh = itr_trsh;
return 0;
+
+out_wmi_wq:
+ destroy_workqueue(wil->wmi_wq);
+
+ return -EAGAIN;
}
/**
wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false);
mutex_unlock(&wil->mutex);
wmi_event_flush(wil);
- destroy_workqueue(wil->wmi_wq_conn);
+ wil_back_rx_flush(wil);
+ cancel_work_sync(&wil->back_rx_worker);
+ destroy_workqueue(wil->wq_service);
destroy_workqueue(wil->wmi_wq);
}
wmi_event_flush(wil);
- flush_workqueue(wil->wmi_wq_conn);
+ flush_workqueue(wil->wq_service);
flush_workqueue(wil->wmi_wq);
rc = wil_target_reset(wil);
kfree(r->reorder_time);
kfree(r);
}
+
+/* ADDBA processing */
+static u16 wil_agg_size(struct wil6210_priv *wil, u16 req_agg_wsize)
+{
+ u16 max_agg_size = min_t(u16, WIL_MAX_AGG_WSIZE, WIL_MAX_AMPDU_SIZE /
+ (mtu_max + WIL_MAX_MPDU_OVERHEAD));
+
+ if (!req_agg_wsize)
+ return max_agg_size;
+
+ return min(max_agg_size, req_agg_wsize);
+}
+
+/* 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)
+{
+ struct wil_sta_info *sta;
+ u8 cid, tid;
+ u16 agg_wsize = 0;
+ /* bit 0: A-MSDU supported
+ * bit 1: policy (should be 0 for us)
+ * 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 status = WLAN_STATUS_SUCCESS;
+ unsigned long flags;
+ int rc;
+
+ parse_cidxtid(req->cidxtid, &cid, &tid);
+
+ /* sanity checks */
+ if (cid >= WIL6210_MAX_CID) {
+ wil_err(wil, "BACK: invalid CID %d\n", cid);
+ return;
+ }
+
+ sta = &wil->sta[cid];
+ if (sta->status != wil_sta_connected) {
+ wil_err(wil, "BACK: CID %d not connected\n", cid);
+ return;
+ }
+
+ wil_dbg_wmi(wil,
+ "ADDBA request for CID %d %pM TID %d size %d timeout %d AMSDU%s policy %d token %d\n",
+ cid, sta->addr, tid, req_agg_wsize, req->ba_timeout,
+ agg_amsdu ? "+" : "-", !!ba_policy, req->dialog_token);
+
+ /* apply policies */
+ if (ba_policy) {
+ wil_err(wil, "BACK requested unsupported ba_policy == 1\n");
+ status = WLAN_STATUS_INVALID_QOS_PARAM;
+ }
+ 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,
+ agg_amsdu, agg_wsize, agg_timeout);
+ if (rc || (status != WLAN_STATUS_SUCCESS))
+ return;
+
+ /* apply */
+ spin_lock_irqsave(&sta->tid_rx_lock, flags);
+
+ wil_tid_ampdu_rx_free(wil, sta->tid_rx[tid]);
+ sta->tid_rx[tid] = wil_tid_ampdu_rx_alloc(wil, agg_wsize,
+ req->ba_seq_ctrl >> 4);
+
+ spin_unlock_irqrestore(&sta->tid_rx_lock, flags);
+}
+
+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);
+ }
+}
.encap_trans_type = WMI_VRING_ENC_TYPE_802_3,
.mac_ctrl = 0,
.to_resolution = 0,
- .agg_max_wsize = 16,
+ .agg_max_wsize = 0,
.schd_params = {
.priority = cpu_to_le16(0),
.timeslot_us = cpu_to_le16(0xfff),
#define WIL6210_MAX_TX_RINGS (24) /* HW limit */
#define WIL6210_MAX_CID (8) /* HW limit */
#define WIL6210_NAPI_BUDGET (16) /* arbitrary */
+#define WIL_MAX_AMPDU_SIZE (64 * 1024) /* FW/HW limit */
+#define WIL_MAX_AGG_WSIZE (32) /* FW/HW limit */
+/* Hardware offload block adds the following:
+ * 26 bytes - 3-address QoS data header
+ * 8 bytes - SNAP
+ * 4 bytes - CRC
+ * 24 bytes - security related (if connection is secure)
+ */
+#define WIL_MAX_MPDU_OVERHEAD (62)
/* Max supported by wil6210 value for interrupt threshold is 5sec. */
#define WIL6210_ITR_TRSH_MAX (5000000)
#define WIL6210_ITR_TRSH_DEFAULT (300) /* usec */
struct vring_tx_data {
int enabled;
cycles_t idle, last_idle, begin;
+ u8 agg_wsize; /* agreed aggregation window, 0 - no agg */
+ u16 agg_timeout;
};
enum { /* for wil6210_priv.status */
fw_recovery_running = 2,
};
+struct wil_back_rx {
+ struct list_head list;
+ /* request params, converted to CPU byte order - what we asked for */
+ u8 cidxtid;
+ u8 dialog_token;
+ u16 ba_param_set;
+ u16 ba_timeout;
+ u16 ba_seq_ctrl;
+};
+
struct wil6210_priv {
struct pci_dev *pdev;
int n_msi;
u16 reply_size;
struct workqueue_struct *wmi_wq; /* for deferred calls */
struct work_struct wmi_event_worker;
- struct workqueue_struct *wmi_wq_conn; /* for connect worker */
+ struct workqueue_struct *wq_service;
struct work_struct connect_worker;
struct work_struct disconnect_worker;
struct work_struct fw_error_worker; /* for FW error recovery */
spinlock_t wmi_ev_lock;
struct napi_struct napi_rx;
struct napi_struct napi_tx;
+ /* BACK */
+ struct list_head back_rx_pending;
+ struct mutex back_rx_mutex; /* protect @back_rx_pending */
+ struct work_struct back_rx_worker;
/* DMA related */
struct vring vring_rx;
struct vring vring_tx[WIL6210_MAX_TX_RINGS];
int wmi_rxon(struct wil6210_priv *wil, bool on);
int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_m, u32 *t_r);
int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason);
+int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout);
+int wmi_delba(struct wil6210_priv *wil, u8 ringid, u16 reason);
+int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token,
+ u16 status, bool amsdu, u16 agg_wsize, u16 timeout);
+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);
+void wil_back_rx_worker(struct work_struct *work);
+void wil_back_rx_flush(struct wil6210_priv *wil);
void wil6210_clear_irq(struct wil6210_priv *wil);
int wil6210_init_irq(struct wil6210_priv *wil, int irq);
wil->sta[evt->cid].status = wil_sta_conn_pending;
wil->pending_connect_cid = evt->cid;
- queue_work(wil->wmi_wq_conn, &wil->connect_worker);
+ queue_work(wil->wq_service, &wil->connect_worker);
}
static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
int len)
{
struct wmi_vring_ba_status_event *evt = d;
- struct wil_sta_info *sta;
- uint i, cid;
-
- /* TODO: use Rx BA status, not Tx one */
+ struct vring_tx_data *txdata;
wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d\n",
evt->ringid,
return;
}
- mutex_lock(&wil->mutex);
-
- cid = wil->vring2cid_tid[evt->ringid][0];
- if (cid >= WIL6210_MAX_CID) {
- wil_err(wil, "invalid CID %d for vring %d\n", cid, evt->ringid);
- goto out;
+ if (evt->status != WMI_BA_AGREED) {
+ evt->ba_timeout = 0;
+ evt->agg_wsize = 0;
}
- sta = &wil->sta[cid];
- if (sta->status == wil_sta_unused) {
- wil_err(wil, "CID %d unused\n", cid);
- goto out;
- }
-
- wil_dbg_wmi(wil, "BACK for CID %d %pM\n", cid, sta->addr);
- for (i = 0; i < WIL_STA_TID_NUM; i++) {
- struct wil_tid_ampdu_rx *r;
- unsigned long flags;
+ txdata = &wil->vring_tx_data[evt->ringid];
- spin_lock_irqsave(&sta->tid_rx_lock, flags);
+ txdata->agg_timeout = le16_to_cpu(evt->ba_timeout);
+ txdata->agg_wsize = evt->agg_wsize;
+}
- r = sta->tid_rx[i];
- sta->tid_rx[i] = NULL;
- wil_tid_ampdu_rx_free(wil, r);
+static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d,
+ int len)
+{
+ struct wmi_rcp_addba_req_event *evt = d;
- spin_unlock_irqrestore(&sta->tid_rx_lock, flags);
+ wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token,
+ evt->ba_param_set, evt->ba_timeout,
+ evt->ba_seq_ctrl);
+}
- if ((evt->status == WMI_BA_AGREED) && evt->agg_wsize)
- sta->tid_rx[i] = wil_tid_ampdu_rx_alloc(wil,
- evt->agg_wsize, 0);
+static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len)
+{
+ struct wmi_delba_event *evt = d;
+ u8 cid, tid;
+ u16 reason = __le16_to_cpu(evt->reason);
+ struct wil_sta_info *sta;
+ struct wil_tid_ampdu_rx *r;
+ unsigned long flags;
+
+ parse_cidxtid(evt->cidxtid, &cid, &tid);
+ wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n",
+ cid, tid,
+ evt->from_initiator ? "originator" : "recipient",
+ reason);
+ if (!evt->from_initiator) {
+ int i;
+ /* find Tx vring it belongs to */
+ for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) {
+ if ((wil->vring2cid_tid[i][0] == cid) &&
+ (wil->vring2cid_tid[i][1] == tid)) {
+ struct vring_tx_data *txdata =
+ &wil->vring_tx_data[i];
+
+ wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i);
+ txdata->agg_timeout = 0;
+ txdata->agg_wsize = 0;
+
+ break; /* max. 1 matching ring */
+ }
+ }
+ if (i >= ARRAY_SIZE(wil->vring2cid_tid))
+ wil_err(wil, "DELBA: unable to find Tx vring\n");
+ return;
}
-out:
- mutex_unlock(&wil->mutex);
+ sta = &wil->sta[cid];
+
+ spin_lock_irqsave(&sta->tid_rx_lock, flags);
+
+ r = sta->tid_rx[tid];
+ sta->tid_rx[tid] = NULL;
+ wil_tid_ampdu_rx_free(wil, r);
+
+ spin_unlock_irqrestore(&sta->tid_rx_lock, flags);
}
static const struct {
{WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_linkup},
{WMI_WBE_LINKDOWN_EVENTID, wmi_evt_linkdown},
{WMI_BA_STATUS_EVENTID, wmi_evt_ba_status},
+ {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req},
+ {WMI_DELBA_EVENTID, wmi_evt_delba},
};
/*
return wmi_send(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd));
}
+int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout)
+{
+ struct wmi_vring_ba_en_cmd cmd = {
+ .ringid = ringid,
+ .agg_max_wsize = size,
+ .ba_timeout = cpu_to_le16(timeout),
+ };
+
+ wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__,
+ ringid, size, timeout);
+
+ return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd));
+}
+
+int wmi_delba(struct wil6210_priv *wil, u8 ringid, u16 reason)
+{
+ struct wmi_vring_ba_dis_cmd cmd = {
+ .ringid = ringid,
+ .reason = cpu_to_le16(reason),
+ };
+
+ wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__,
+ ringid, reason);
+
+ return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd));
+}
+
+int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token,
+ u16 status, bool amsdu, u16 agg_wsize, u16 timeout)
+{
+ int rc;
+ struct wmi_rcp_addba_resp_cmd cmd = {
+ .cidxtid = mk_cidxtid(cid, tid),
+ .dialog_token = token,
+ .status_code = cpu_to_le16(status),
+ /* bit 0: A-MSDU supported
+ * bit 1: policy (should be 0 for us)
+ * bits 2..5: TID
+ * bits 6..15: buffer size
+ */
+ .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) |
+ (agg_wsize << 6)),
+ .ba_timeout = cpu_to_le16(timeout),
+ };
+ struct {
+ struct wil6210_mbox_hdr_wmi wmi;
+ struct wmi_rcp_addba_resp_sent_event evt;
+ } __packed reply;
+
+ wil_dbg_wmi(wil,
+ "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n",
+ cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-");
+
+ rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd),
+ WMI_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply), 100);
+ if (rc)
+ return rc;
+
+ if (reply.evt.status) {
+ wil_err(wil, "ADDBA response failed with status %d\n",
+ le16_to_cpu(reply.evt.status));
+ rc = -EINVAL;
+ }
+
+ return rc;
+}
+
void wmi_event_flush(struct wil6210_priv *wil)
{
struct pending_wmi_event *evt, *t;
projects / cascardo / linux.git / commitdiff