[PATCH v2] wifi: ath12k: Add support for parsing 64-bit TLVs

[PATCH v2] wifi: ath12k: Add support for parsing 64-bit TLVs

[P Praneesh]

There is mismatch between the format of monitor destination TLVs received
and the expected format by the current implementation. The received TLVs
are in 64-bit format, while the implementation is designed to handle
32-bit TLVs. This leads to incorrect parsing. Fix it by adding support
for parsing 64-bit TLVs.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: P Praneesh <quic_ppranees@quicinc.com>
---
v2:
	- Updated Tested-on tag for WCN7850.
	- Rebased to the TOT.
---
 drivers/net/wireless/ath/ath12k/dp_mon.c   | 14 +++++++-------
 drivers/net/wireless/ath/ath12k/hal_desc.h |  2 ++
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/dp_mon.c b/drivers/net/wireless/ath/ath12k/dp_mon.c
index 2d53404095d6..c6cc4a1a5230 100644
--- a/drivers/net/wireless/ath/ath12k/dp_mon.c
+++ b/drivers/net/wireless/ath/ath12k/dp_mon.c
@@ -1205,19 +1205,19 @@ ath12k_dp_mon_parse_rx_dest(struct ath12k_base *ab, struct ath12k_mon_data *pmon
 			    struct sk_buff *skb)
 {
 	struct hal_rx_mon_ppdu_info *ppdu_info = &pmon->mon_ppdu_info;
-	struct hal_tlv_hdr *tlv;
+	struct hal_tlv_64_hdr *tlv;
 	enum hal_rx_mon_status hal_status;
-	u32 tlv_userid = 0;
+	u32 tlv_userid;
 	u16 tlv_tag, tlv_len;
 	u8 *ptr = skb->data;
 
 	memset(ppdu_info, 0, sizeof(struct hal_rx_mon_ppdu_info));
 
 	do {
-		tlv = (struct hal_tlv_hdr *)ptr;
-		tlv_tag = le32_get_bits(tlv->tl, HAL_TLV_HDR_TAG);
-		tlv_len = le32_get_bits(tlv->tl, HAL_TLV_HDR_LEN);
-		tlv_userid = le32_get_bits(tlv->tl, HAL_TLV_USR_ID);
+		tlv = (struct hal_tlv_64_hdr *)ptr;
+		tlv_tag = le64_get_bits(tlv->tl, HAL_TLV_64_HDR_TAG);
+		tlv_len = le64_get_bits(tlv->tl, HAL_TLV_64_HDR_LEN);
+		tlv_userid = le64_get_bits(tlv->tl, HAL_TLV_64_USR_ID);
 		ptr += sizeof(*tlv);
 
 		/* The actual length of PPDU_END is the combined length of many PHY
@@ -1232,7 +1232,7 @@ ath12k_dp_mon_parse_rx_dest(struct ath12k_base *ab, struct ath12k_mon_data *pmon
 		hal_status = ath12k_dp_mon_rx_parse_status_tlv(ab, pmon,
 							       tlv_tag, ptr, tlv_userid);
 		ptr += tlv_len;
-		ptr = PTR_ALIGN(ptr, HAL_TLV_ALIGN);
+		ptr = PTR_ALIGN(ptr, HAL_TLV_64_ALIGN);
 
 		if ((ptr - skb->data) >= DP_RX_BUFFER_SIZE)
 			break;
diff --git a/drivers/net/wireless/ath/ath12k/hal_desc.h b/drivers/net/wireless/ath/ath12k/hal_desc.h
index a460d432288f..b90a6da72e29 100644
--- a/drivers/net/wireless/ath/ath12k/hal_desc.h
+++ b/drivers/net/wireless/ath/ath12k/hal_desc.h
@@ -579,6 +579,8 @@ struct hal_tlv_hdr {
 
 #define HAL_TLV_64_HDR_TAG		GENMASK(9, 1)
 #define HAL_TLV_64_HDR_LEN		GENMASK(21, 10)
+#define HAL_TLV_64_USR_ID		GENMASK(31, 26)
+#define HAL_TLV_64_ALIGN		8
 
 struct hal_tlv_64_hdr {
 	__le64 tl;

base-commit: 9a448415ed0c46edeb9170091a03b620986ca0b2
-- 
2.34.1

Re: [PATCH v2] wifi: ath12k: Add support for parsing 64-bit TLVs

[Kalle Valo]

P Praneesh <quic_ppranees@quicinc.com> writes:

> There is mismatch between the format of monitor destination TLVs received
> and the expected format by the current implementation. The received TLVs
> are in 64-bit format, while the implementation is designed to handle
> 32-bit TLVs. This leads to incorrect parsing. Fix it by adding support
> for parsing 64-bit TLVs.
>
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
>
> Signed-off-by: P Praneesh <quic_ppranees@quicinc.com>

Acked-by: Kalle Valo <kvalo@kernel.org>

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

Re: [PATCH v2] wifi: ath12k: Add support for parsing 64-bit TLVs

[Jeff Johnson]

On Tue, 17 Dec 2024 15:20:58 +0530, P Praneesh wrote:
> There is mismatch between the format of monitor destination TLVs received
> and the expected format by the current implementation. The received TLVs
> are in 64-bit format, while the implementation is designed to handle
> 32-bit TLVs. This leads to incorrect parsing. Fix it by adding support
> for parsing 64-bit TLVs.
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
> 
> [...]

Applied, thanks!

[1/1] wifi: ath12k: Add support for parsing 64-bit TLVs
      commit: be8d47f181fd4f341b8beee1ca11a96d296d2df2

Best regards,
-- 
Jeff Johnson <jeff.johnson@oss.qualcomm.com>