wil6210: add support for enhanced DMA RX data flows

Enhanced DMA RX data path is handled using a single
RX descriptor ring for all VIFs.
Multiple RX status rings are supported, to allow RSS
and multi MSI support.
The driver gets the RX completions via the RX status rings.
The RX status message includes the completed RX buffer ID,
which points to the allocated SKB.

The enhanced DMA RX data flow supports RX chaining, where
multiple SKBs are merged into a single packet.

Enhanced DMA HW supports RX HW reorder offload, enabled by
default for Talyn-MB.

amsdu_en debugfs entry was added to allow control MSDU aggregation.
Use the following command to disable AMSDU (enabled by default):
echo 0 > amsdu_en

Signed-off-by: Gidon Studinski <gidons@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

1 files changed, 14 insertions, 10 deletions

diff --git a/drivers/net/wireless/ath/wil6210/rx_reorder.c b/drivers/net/wireless/ath/wil6210/rx_reorder.c
index a586929f72d4..22475a1ddb7f 100644
--- a/drivers/net/wireless/ath/wil6210/rx_reorder.c
+++ b/drivers/net/wireless/ath/wil6210/rx_reorder.c
@@ -95,17 +95,17 @@ __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
 {
 	struct wil6210_vif *vif;
 	struct net_device *ndev;
-	struct vring_rx_desc *d = wil_skb_rxdesc(skb);
-	int tid = wil_rxdesc_tid(d);
-	int cid = wil_rxdesc_cid(d);
-	int mid = wil_rxdesc_mid(d);
-	u16 seq = wil_rxdesc_seq(d);
-	int mcast = wil_rxdesc_mcast(d);
-	struct wil_sta_info *sta = &wil->sta[cid];
+	int tid, cid, mid, mcast;
+	u16 seq;
+	struct wil_sta_info *sta;
 	struct wil_tid_ampdu_rx *r;
 	u16 hseq;
 	int index;
 
+	wil->txrx_ops.get_reorder_params(wil, skb, &tid, &cid, &mid, &seq,
+					 &mcast);
+	sta = &wil->sta[cid];
+
 	wil_dbg_txrx(wil, "MID %d CID %d TID %d Seq 0x%03x mcast %01x\n",
 		     mid, cid, tid, seq, mcast);
 
@@ -315,7 +315,10 @@ __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
 	 * bits 6..15: buffer size
 	 */
 	u16 req_agg_wsize = WIL_GET_BITS(param_set, 6, 15);
-	bool agg_amsdu = !!(param_set & BIT(0));
+	bool agg_amsdu = wil->use_enhanced_dma_hw &&
+		wil->use_rx_hw_reordering &&
+		test_bit(WMI_FW_CAPABILITY_AMSDU, wil->fw_capabilities) &&
+		wil->amsdu_en && (param_set & BIT(0));
 	int ba_policy = param_set & BIT(1);
 	u16 status = WLAN_STATUS_SUCCESS;
 	u16 ssn = seq_ctrl >> 4;
@@ -360,8 +363,9 @@ __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
 		}
 	}
 
-	rc = wmi_addba_rx_resp(wil, mid, cid, tid, dialog_token, status,
-			       agg_amsdu, agg_wsize, agg_timeout);
+	rc = wil->txrx_ops.wmi_addba_rx_resp(wil, mid, cid, tid, dialog_token,
+					     status, agg_amsdu, agg_wsize,
+					     agg_timeout);
 	if (rc || (status != WLAN_STATUS_SUCCESS)) {
 		wil_err(wil, "do not apply ba, rc(%d), status(%d)\n", rc,
 			status);