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From:   Anilkumar Kolli <akolli@codeaurora.org>
To:     ath11k@lists.infradead.org
Cc:     linux-wireless@vger.kernel.org,
        Anilkumar Kolli <akolli@codeaurora.org>
Subject: [PATCH v2 2/3] ath11k: add software monitor ring descriptor for full monitor
Date:   Tue,  7 Dec 2021 18:24:54 +0530
Message-Id: <1638881695-22155-3-git-send-email-akolli@codeaurora.org>
In-Reply-To: <1638881695-22155-1-git-send-email-akolli@codeaurora.org>
References: <1638881695-22155-1-git-send-email-akolli@codeaurora.org>
Precedence: bulk

In full monitor mode, monitor destination ring is read in
software monitor ring descriptor format instead of
reo_entrance_ring format. Add new sw_mon_ring descriptor.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01734-QCAHKSWPL_SILICONZ-1

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
---
 drivers/net/wireless/ath/ath11k/hal_desc.h | 19 +++++++++++++
 drivers/net/wireless/ath/ath11k/hal_rx.c   | 44 ++++++++++++++++++++++++++++++
 drivers/net/wireless/ath/ath11k/hal_rx.h   | 17 ++++++++++++
 3 files changed, 80 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/hal_desc.h b/drivers/net/wireless/ath/ath11k/hal_desc.h
index 00b595b84939..406767672844 100644
--- a/drivers/net/wireless/ath/ath11k/hal_desc.h
+++ b/drivers/net/wireless/ath/ath11k/hal_desc.h
@@ -858,6 +858,25 @@ struct hal_reo_entrance_ring {
  *		this ring has looped around the ring.
  */
 
+#define HAL_SW_MON_RING_INFO0_RXDMA_PUSH_REASON	GENMASK(1, 0)
+#define HAL_SW_MON_RING_INFO0_RXDMA_ERROR_CODE	GENMASK(6, 2)
+#define HAL_SW_MON_RING_INFO0_MPDU_FRAG_NUMBER	GENMASK(10, 7)
+#define HAL_SW_MON_RING_INFO0_FRAMELESS_BAR	BIT(11)
+#define HAL_SW_MON_RING_INFO0_STATUS_BUF_CNT	GENMASK(15, 12)
+#define HAL_SW_MON_RING_INFO0_END_OF_PPDU	BIT(16)
+
+#define HAL_SW_MON_RING_INFO1_PHY_PPDU_ID	GENMASK(15, 0)
+#define HAL_SW_MON_RING_INFO1_RING_ID		GENMASK(27, 20)
+#define HAL_SW_MON_RING_INFO1_LOOPING_COUNT	GENMASK(31, 28)
+
+struct hal_sw_monitor_ring {
+	struct ath11k_buffer_addr buf_addr_info;
+	struct rx_mpdu_desc rx_mpdu_info;
+	struct ath11k_buffer_addr status_buf_addr_info;
+	u32 info0;
+	u32 info1;
+} __packed;
+
 #define HAL_REO_CMD_HDR_INFO0_CMD_NUMBER	GENMASK(15, 0)
 #define HAL_REO_CMD_HDR_INFO0_STATUS_REQUIRED	BIT(16)
 
diff --git a/drivers/net/wireless/ath/ath11k/hal_rx.c b/drivers/net/wireless/ath/ath11k/hal_rx.c
index 0e43e215c10a..1e279e99baa8 100644
--- a/drivers/net/wireless/ath/ath11k/hal_rx.c
+++ b/drivers/net/wireless/ath/ath11k/hal_rx.c
@@ -1185,3 +1185,47 @@ void ath11k_hal_rx_reo_ent_buf_paddr_get(void *rx_desc, dma_addr_t *paddr,
 
 	*pp_buf_addr = (void *)buf_addr_info;
 }
+
+void
+ath11k_hal_rx_sw_mon_ring_buf_paddr_get(void *rx_desc,
+					struct hal_sw_mon_ring_entries *sw_mon_entries)
+{
+	struct hal_sw_monitor_ring *sw_mon_ring = rx_desc;
+	struct ath11k_buffer_addr *buf_addr_info;
+	struct ath11k_buffer_addr *status_buf_addr_info;
+	struct rx_mpdu_desc *rx_mpdu_desc_info_details;
+
+	rx_mpdu_desc_info_details = &sw_mon_ring->rx_mpdu_info;
+
+	sw_mon_entries->msdu_cnt = FIELD_GET(RX_MPDU_DESC_INFO0_MSDU_COUNT,
+					     rx_mpdu_desc_info_details->info0);
+
+	buf_addr_info = &sw_mon_ring->buf_addr_info;
+	status_buf_addr_info = &sw_mon_ring->status_buf_addr_info;
+
+	sw_mon_entries->mon_dst_paddr = (((u64)FIELD_GET(BUFFER_ADDR_INFO1_ADDR,
+					buf_addr_info->info1)) << 32) |
+					FIELD_GET(BUFFER_ADDR_INFO0_ADDR,
+						  buf_addr_info->info0);
+
+	sw_mon_entries->mon_status_paddr =
+			(((u64)FIELD_GET(BUFFER_ADDR_INFO1_ADDR,
+					 status_buf_addr_info->info1)) << 32) |
+				FIELD_GET(BUFFER_ADDR_INFO0_ADDR,
+					  status_buf_addr_info->info0);
+
+	sw_mon_entries->mon_dst_sw_cookie = FIELD_GET(BUFFER_ADDR_INFO1_SW_COOKIE,
+						      buf_addr_info->info1);
+
+	sw_mon_entries->mon_status_sw_cookie = FIELD_GET(BUFFER_ADDR_INFO1_SW_COOKIE,
+							 status_buf_addr_info->info1);
+
+	sw_mon_entries->status_buf_count = FIELD_GET(HAL_SW_MON_RING_INFO0_STATUS_BUF_CNT,
+						     sw_mon_ring->info0);
+
+	sw_mon_entries->dst_buf_addr_info = buf_addr_info;
+	sw_mon_entries->status_buf_addr_info = status_buf_addr_info;
+
+	sw_mon_entries->ppdu_id =
+		FIELD_GET(HAL_SW_MON_RING_INFO1_PHY_PPDU_ID, sw_mon_ring->info1);
+}
diff --git a/drivers/net/wireless/ath/ath11k/hal_rx.h b/drivers/net/wireless/ath/ath11k/hal_rx.h
index 0f1f04b812b9..8db420ef6351 100644
--- a/drivers/net/wireless/ath/ath11k/hal_rx.h
+++ b/drivers/net/wireless/ath/ath11k/hal_rx.h
@@ -77,6 +77,20 @@ enum hal_rx_mon_status {
 	HAL_RX_MON_STATUS_BUF_DONE,
 };
 
+struct hal_sw_mon_ring_entries {
+	dma_addr_t mon_dst_paddr;
+	dma_addr_t mon_status_paddr;
+	u32 mon_dst_sw_cookie;
+	u32 mon_status_sw_cookie;
+	void *dst_buf_addr_info;
+	void *status_buf_addr_info;
+	u16 ppdu_id;
+	u8 status_buf_count;
+	u8 msdu_cnt;
+	bool end_of_ppdu;
+	bool drop_ppdu;
+};
+
 struct hal_rx_mon_ppdu_info {
 	u32 ppdu_id;
 	u32 ppdu_ts;
@@ -331,6 +345,9 @@ void ath11k_hal_rx_reo_ent_buf_paddr_get(void *rx_desc,
 					 dma_addr_t *paddr, u32 *sw_cookie,
 					 void **pp_buf_addr_info, u8 *rbm,
 					 u32 *msdu_cnt);
+void
+ath11k_hal_rx_sw_mon_ring_buf_paddr_get(void *rx_desc,
+					struct hal_sw_mon_ring_entries *sw_mon_ent);
 enum hal_rx_mon_status
 ath11k_hal_rx_parse_mon_status(struct ath11k_base *ab,
 			       struct hal_rx_mon_ppdu_info *ppdu_info,
-- 
2.7.4