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wifi: ath11k: Fix unexpected return buffer manager error for WCN6750/WCN6855

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[ Upstream commit 78e154d42f2c72905fe66a400847e1b2b101b7b2 ]

The following error messages were encountered while parsing fragmented RX
packets for WCN6750/WCN6855:

ath11k 17a10040.wifi: invalid return buffer manager 4

This issue arose due to a hardcoded check for HAL_RX_BUF_RBM_SW3_BM
introduced in 'commit 71c748b5e0 ("ath11k: Fix unexpected return buffer
manager error for QCA6390")'

For WCN6750 and WCN6855, the return buffer manager ID should be
HAL_RX_BUF_RBM_SW1_BM. The incorrect conditional check caused fragmented
packets to be dropped, resulting in the above error log.

Fix this by adding a check for HAL_RX_BUF_RBM_SW1_BM.

Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.2.0.c2-00258-QCAMSLSWPL-1
Tested-on: WCN6855 hw2.1 WLAN.HSP.1.1-04479-QCAHSPSWPL_V1_V2_SILICONZ_IOE-1

Fixes: 71c748b5e0 ("ath11k: Fix unexpected return buffer manager error for QCA6390")
Signed-off-by: Balaji Pothunoori <quic_bpothuno@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Acked-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20241030114625.2416942-1-quic_bpothuno@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Balaji Pothunoori
2024-10-30 17:16:25 +05:30
committed by Greg Kroah-Hartman
parent 312a644503
commit acc6c67d9b
2 changed files with 3 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/wireless/ath/ath11k/dp_rx.c
View File

@@ -3795,6 +3795,7 @@ int ath11k_dp_process_rx_err(struct ath11k_base *ab, struct napi_struct *napi,
ath11k_hal_rx_msdu_link_info_get(link_desc_va, &num_msdus, msdu_cookies,
&rbm);
if (rbm != HAL_RX_BUF_RBM_WBM_IDLE_DESC_LIST &&
rbm != HAL_RX_BUF_RBM_SW1_BM &&
rbm != HAL_RX_BUF_RBM_SW3_BM) {
ab->soc_stats.invalid_rbm++;
ath11k_warn(ab, "invalid return buffer manager %d\n", rbm);

3
drivers/net/wireless/ath/ath11k/hal_rx.c
View File

@@ -371,7 +371,8 @@ int ath11k_hal_wbm_desc_parse_err(struct ath11k_base *ab, void *desc,
ret_buf_mgr = FIELD_GET(BUFFER_ADDR_INFO1_RET_BUF_MGR,
wbm_desc->buf_addr_info.info1);
if (ret_buf_mgr != HAL_RX_BUF_RBM_SW3_BM) {
if (ret_buf_mgr != HAL_RX_BUF_RBM_SW1_BM &&
ret_buf_mgr != HAL_RX_BUF_RBM_SW3_BM) {
ab->soc_stats.invalid_rbm++;
return -EINVAL;
}