From: Nishant Sarmukadam <nishants@xxxxxxxxxxx>
Signed-off-by: Pradeep Nemavat <pnemavat@xxxxxxxxxxx>
Signed-off-by: Brian Cavagnolo <brian@xxxxxxxxxxx>
---
drivers/net/wireless/mwl8k.c | 156 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 156 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index 9db66d5..944ad03 100644
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -135,6 +135,14 @@ struct mwl8k_tx_queue {
struct sk_buff **skb;
};
+struct mwl8k_ampdu_stream {
+ struct ieee80211_sta *sta;
+ u8 tid;
+ u8 state;
+ u8 idx;
+ u8 txq_idx; /* index of this stream in priv->txq */
+};
+
struct mwl8k_priv {
struct ieee80211_hw *hw;
struct pci_dev *pdev;
@@ -360,6 +368,7 @@ static const struct ieee80211_rate mwl8k_rates_50[] = {
#define MWL8K_CMD_SET_NEW_STN 0x1111 /* per-vif */
#define MWL8K_CMD_UPDATE_ENCRYPTION 0x1122 /* per-vif */
#define MWL8K_CMD_UPDATE_STADB 0x1123
+#define MWL8K_CMD_BASTREAM 0x1125
static const char *mwl8k_cmd_name(__le16 cmd, char *buf, int bufsize)
{
@@ -399,6 +408,7 @@ static const char *mwl8k_cmd_name(__le16 cmd, char *buf, int bufsize)
MWL8K_CMDNAME(SET_NEW_STN);
MWL8K_CMDNAME(UPDATE_ENCRYPTION);
MWL8K_CMDNAME(UPDATE_STADB);
+ MWL8K_CMDNAME(BASTREAM);
default:
snprintf(buf, bufsize, "0x%x", cmd);
}
@@ -3176,6 +3186,152 @@ static int mwl8k_cmd_bss_start(struct ieee80211_hw *hw,
}
/*
+ * CMD_BASTREAM.
+ */
+
+/*
+ * UPSTREAM is tx direction
+ */
+#define BASTREAM_FLAG_DIRECTION_UPSTREAM 0x00
+#define BASTREAM_FLAG_IMMEDIATE_TYPE 0x01
+
+enum {
+ MWL8K_BA_CREATE,
+ MWL8K_BA_UPDATE,
+ MWL8K_BA_DESTROY,
+ MWL8K_BA_FLUSH,
+ MWL8K_BA_CHECK,
+} ba_stream_action_type;
+
+
+struct mwl8k_create_ba_stream {
+ __le32 flags;
+ __le32 idle_thrs;
+ __le32 bar_thrs;
+ __le32 window_size;
+ u8 peer_mac_addr[6];
+ u8 dialog_token;
+ u8 tid;
+ u8 queue_id;
+ u8 param_info;
+ __le32 ba_context;
+ u8 reset_seq_no_flag;
+ __le16 curr_seq_no;
+ u8 sta_src_mac_addr[6];
+} __packed;
+
+struct mwl8k_destroy_ba_stream {
+ __le32 flags;
+ __le32 ba_context;
+} __packed;
+
+struct mwl8k_cmd_bastream {
+ struct mwl8k_cmd_pkt header;
+ __le32 action;
+ union {
+ struct mwl8k_create_ba_stream create_params;
+ struct mwl8k_destroy_ba_stream destroy_params;
+ };
+} __packed;
+
+static int
+mwl8k_check_ba(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream)
+{
+ struct mwl8k_cmd_bastream *cmd;
+ int rc;
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (cmd == NULL)
+ return -ENOMEM;
+
+ cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
+ cmd->header.length = cpu_to_le16(sizeof(*cmd));
+
+ cmd->action = cpu_to_le32(MWL8K_BA_CHECK);
+
+ cmd->create_params.queue_id = stream->idx;
+ memcpy(&cmd->create_params.peer_mac_addr[0], stream->sta->addr,
+ ETH_ALEN);
+ cmd->create_params.tid = stream->tid;
+
+ cmd->create_params.flags =
+ cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE) |
+ cpu_to_le32(BASTREAM_FLAG_DIRECTION_UPSTREAM);
+
+ rc = mwl8k_post_cmd(hw, &cmd->header);
+
+ kfree(cmd);
+
+ return rc;
+}
+
+static int
+mwl8k_create_ba(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream,
+ u8 buf_size)
+{
+ struct mwl8k_cmd_bastream *cmd;
+ int rc;
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (cmd == NULL)
+ return -ENOMEM;
+
+
+ cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
+ cmd->header.length = cpu_to_le16(sizeof(*cmd));
+
+ cmd->action = cpu_to_le32(MWL8K_BA_CREATE);
+
+ cmd->create_params.bar_thrs = cpu_to_le32((u32)buf_size);
+ cmd->create_params.window_size = cpu_to_le32((u32)buf_size);
+ cmd->create_params.queue_id = stream->idx;
+
+ memcpy(cmd->create_params.peer_mac_addr, stream->sta->addr, ETH_ALEN);
+ cmd->create_params.tid = stream->tid;
+ cmd->create_params.curr_seq_no = cpu_to_le16(0);
+ cmd->create_params.reset_seq_no_flag = 1;
+
+ cmd->create_params.param_info =
+ (stream->sta->ht_cap.ampdu_factor &
+ IEEE80211_HT_AMPDU_PARM_FACTOR) |
+ ((stream->sta->ht_cap.ampdu_density << 2) &
+ IEEE80211_HT_AMPDU_PARM_DENSITY);
+
+ cmd->create_params.flags =
+ cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE |
+ BASTREAM_FLAG_DIRECTION_UPSTREAM);
+
+ rc = mwl8k_post_cmd(hw, &cmd->header);
+
+ wiphy_debug(hw->wiphy, "Created a BA stream for %pM : tid %d\n",
+ stream->sta->addr, stream->tid);
+ kfree(cmd);
+
+ return rc;
+}
+
+static void mwl8k_destroy_ba(struct ieee80211_hw *hw,
+ struct mwl8k_ampdu_stream *stream)
+{
+ struct mwl8k_cmd_bastream *cmd;
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (cmd == NULL)
+ return;
+
+ cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
+ cmd->header.length = cpu_to_le16(sizeof(*cmd));
+ cmd->action = cpu_to_le32(MWL8K_BA_DESTROY);
+
+ cmd->destroy_params.ba_context = cpu_to_le32(stream->idx);
+ mwl8k_post_cmd(hw, &cmd->header);
+
+ wiphy_debug(hw->wiphy, "Deleted BA stream index %d\n", stream->idx);
+
+ kfree(cmd);
+}
+
+/*
* CMD_SET_NEW_STN.
*/
struct mwl8k_cmd_set_new_stn {
--
1.7.1.1
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