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

qcacmn: Add RX prealloc pool for replenishing RX buffers

Browse Source 
Add and initialize a preallocated pool of buffers which can
be used to replenish RX buffers. During replenish, the buffers
from the pool are used instead of allocating/mapping a new buffer
in the softirq context. This preallocated pool will be refilled
in thread context.

Change-Id: Idf3bd7d25c5d57ddba105ccd8fab672c26a184f1
CRs-Fixed: 2869345
This commit is contained in:
Karthik Kantamneni
2021-01-19 11:41:00 +05:30
committed by snandini
parent 71e3244d46
commit 595bc84a39
7 changed files with 305 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
dp/wifi3.0/dp_rx.c
View File

@@ -230,11 +230,8 @@ dp_pdev_nbuf_alloc_and_map_replenish(struct dp_soc *dp_soc,
return QDF_STATUS_E_NOMEM;
}
ret = qdf_nbuf_map_nbytes_single(dp_soc->osdev,
(nbuf_frag_info_t->virt_addr).nbuf,
QDF_DMA_FROM_DEVICE,
rx_desc_pool->buf_size);
ret = dp_rx_buffer_pool_nbuf_map(dp_soc, rx_desc_pool,
nbuf_frag_info_t);
if (qdf_unlikely(QDF_IS_STATUS_ERROR(ret))) {
dp_rx_buffer_pool_nbuf_free(dp_soc,
(nbuf_frag_info_t->virt_addr).nbuf, mac_id);
@@ -246,11 +243,6 @@ dp_pdev_nbuf_alloc_and_map_replenish(struct dp_soc *dp_soc,
nbuf_frag_info_t->paddr =
qdf_nbuf_get_frag_paddr((nbuf_frag_info_t->virt_addr).nbuf, 0);
dp_ipa_handle_rx_buf_smmu_mapping(dp_soc,
(qdf_nbuf_t)((nbuf_frag_info_t->virt_addr).nbuf),
rx_desc_pool->buf_size,
true);
ret = dp_check_paddr(dp_soc, &((nbuf_frag_info_t->virt_addr).nbuf),
&nbuf_frag_info_t->paddr,
rx_desc_pool);
@@ -415,6 +407,8 @@ QDF_STATUS __dp_rx_buffers_replenish(struct dp_soc *dp_soc, uint32_t mac_id,
hal_srng_access_end(dp_soc->hal_soc, rxdma_srng);
dp_rx_schedule_refill_thread(dp_soc);
dp_verbose_debug("replenished buffers %d, rx desc added back to free list %u",
count, num_desc_to_free);