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qcacmn: Fix peer id mismatch on Tx completion

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Peer id mismatch is observed when prefetch of HW
descriptor exceeds the last valid descriptor.
To fix this issue, add check to limit prefetch to
the last valid descriptor.

Change-Id: I01582892d55ed1f300d6806e1d8def46f747516b
CRs-Fixed: 3671814
This commit is contained in:
Ripan Deuri
2024-01-08 12:56:02 +05:30
committed by Ravindra Konda
parent 2a9c2537fc
commit 855046f89d
5 changed files with 37 additions and 21 deletions
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17
hal/wifi3.0/hal_api.h
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@@ -1,6 +1,6 @@
/*
* Copyright (c) 2016-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. 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
@@ -1810,11 +1810,12 @@ uint32_t hal_srng_dst_num_valid(void *hal_soc,
*
* Invalidates a set of cached descriptors starting from TP to cached_HP
*
* Return: None
* Return: HAL ring descriptor
*/
static inline void hal_srng_dst_inv_cached_descs(void *hal_soc,
hal_ring_handle_t hal_ring_hdl,
uint32_t entry_count)
static inline void *
hal_srng_dst_inv_cached_descs(void *hal_soc,
hal_ring_handle_t hal_ring_hdl,
uint32_t entry_count)
{
struct hal_srng *srng = (struct hal_srng *)hal_ring_hdl;
uint32_t *first_desc;
@@ -1826,10 +1827,10 @@ static inline void hal_srng_dst_inv_cached_descs(void *hal_soc,
* API call should be a no op
*/
if (!(srng->flags & HAL_SRNG_CACHED_DESC))
return;
return NULL;
if (!entry_count)
return;
return NULL;
first_desc = &srng->ring_base_vaddr[srng->u.dst_ring.tp];
@@ -1853,6 +1854,8 @@ static inline void hal_srng_dst_inv_cached_descs(void *hal_soc,
(void *)last_desc);
}
qdf_dsb();
return last_desc;
}
/**