qcacmn: Add hal_rx_get_rx_fragment_number API

Implement hal_rx_get_rx_fragment_number
based on the chipset as the macro
HAL_RX_MPDU_GET_SEQUENCE_NUMBER is
chipset specific.

Change-Id: I967190fa3a55d45f46760f58eab5007bf5fa908f
CRs-Fixed: 2522133

hal/wifi3.0/qca6490/hal_6490.c

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2019 The Linux Foundation. All rights reserved.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for
+ * any purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/**
+ * hal_rx_get_rx_fragment_number_6490(): Function to retrieve rx fragment number
+ *
+ * @nbuf: Network buffer
+ * Returns: rx fragment number
+ */
+static
+uint8_t hal_rx_get_rx_fragment_number_6490(uint8_t *buf)
+{
+	struct rx_pkt_tlvs *pkt_tlvs = hal_rx_get_pkt_tlvs(buf);
+	struct rx_mpdu_info *rx_mpdu_info = hal_rx_get_mpdu_info(pkt_tlvs);
+
+	/* Return first 4 bits as fragment number */
+	return (HAL_RX_MPDU_GET_SEQUENCE_NUMBER(rx_mpdu_info) &
+		DOT11_SEQ_FRAG_MASK);
+}
+
+struct hal_hw_txrx_ops qca6490_hal_hw_txrx_ops = {
+	/* rx */
+	hal_rx_get_rx_fragment_number_6490,
+};