samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

qcacmn: Avoid using small buffer address

Browse Source 
The memory below 0x2000 is reserved for the target use,
so any memory in this region should not used by host.
But on some third-party platforms, we observe such
memory is allocated for RX buffer, which cause HW/FW
NOC error, then RX is stuck. To address this,
re-allocate RX buffers when small buffer appear.

Change-Id: Iad118e82f3fe10f92cbf5f7388dc0960542fc03c
CRs-Fixed: 2707190
This commit is contained in:
Lihua Liu
2020-06-10 20:45:25 +08:00
committed by snandini
parent f16765d8bd
commit 74efc61848
5 changed files with 114 additions and 73 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
dp/wifi3.0/dp_rx.c
View File

@@ -251,14 +251,10 @@ dp_pdev_nbuf_alloc_and_map_replenish(struct dp_soc *dp_soc,
rx_desc_pool->buf_size,
true);
ret = check_x86_paddr(dp_soc, &((nbuf_frag_info_t->virt_addr).nbuf),
&nbuf_frag_info_t->paddr,
rx_desc_pool);
ret = dp_check_paddr(dp_soc, &((nbuf_frag_info_t->virt_addr).nbuf),
&nbuf_frag_info_t->paddr,
rx_desc_pool);
if (ret == QDF_STATUS_E_FAILURE) {
qdf_nbuf_unmap_nbytes_single(dp_soc->osdev,
(nbuf_frag_info_t->virt_addr).nbuf,
QDF_DMA_FROM_DEVICE,
rx_desc_pool->buf_size);
DP_STATS_INC(dp_pdev, replenish.x86_fail, 1);
return QDF_STATUS_E_ADDRNOTAVAIL;
}
@@ -3042,15 +3038,10 @@ dp_pdev_nbuf_alloc_and_map(struct dp_soc *dp_soc,
nbuf_frag_info_t->paddr =
qdf_nbuf_get_frag_paddr((nbuf_frag_info_t->virt_addr).nbuf, 0);
ret = check_x86_paddr(dp_soc, &((nbuf_frag_info_t->virt_addr).nbuf),
&nbuf_frag_info_t->paddr,
rx_desc_pool);
ret = dp_check_paddr(dp_soc, &((nbuf_frag_info_t->virt_addr).nbuf),
&nbuf_frag_info_t->paddr,
rx_desc_pool);
if (ret == QDF_STATUS_E_FAILURE) {
qdf_nbuf_unmap_nbytes_single(dp_soc->osdev,
(nbuf_frag_info_t->virt_addr).nbuf,
QDF_DMA_FROM_DEVICE,
rx_desc_pool->buf_size);
qdf_nbuf_free((nbuf_frag_info_t->virt_addr).nbuf);
dp_err("nbuf check x86 failed");
DP_STATS_INC(dp_pdev, replenish.x86_fail, 1);
return ret;