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

qcacmn: DP RX changes for RX buffer pool support

Browse Source 
DP RX changes to support RX buffer pool, this is a pre-allocated pool
of buffers which will be utilized during low memory conditions.

Change-Id: I8d89a865f989d4e88c10390861e9d4be72ae0299
CRs-Fixed: 2731517
This commit is contained in:
Manikanta Pubbisetty
2020-07-20 13:35:43 +05:30
committed by snandini
parent ea9aadb12d
commit fa2844b787
8 changed files with 106 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
dp/wifi3.0/dp_rx.c
View File

@@ -33,6 +33,7 @@
#include "dp_txrx_wds.h"
#endif
#include "dp_hist.h"
#include "dp_rx_buffer_pool.h"
#ifdef ATH_RX_PRI_SAVE
#define DP_RX_TID_SAVE(_nbuf, _tid) \
@@ -172,7 +173,6 @@ QDF_STATUS __dp_rx_buffers_replenish(struct dp_soc *dp_soc, uint32_t mac_id,
union dp_rx_desc_list_elem_t *next;
QDF_STATUS ret;
uint16_t buf_size = rx_desc_pool->buf_size;
uint8_t buf_alignment = rx_desc_pool->buf_alignment;
void *rxdma_srng;
@@ -239,11 +239,9 @@ QDF_STATUS __dp_rx_buffers_replenish(struct dp_soc *dp_soc, uint32_t mac_id,
count = 0;
while (count < num_req_buffers) {
rx_netbuf = qdf_nbuf_alloc(dp_soc->osdev,
buf_size,
RX_BUFFER_RESERVATION,
buf_alignment,
FALSE);
rx_netbuf = dp_rx_buffer_pool_nbuf_alloc(dp_soc, mac_id,
rx_desc_pool,
num_entries_avail);
if (qdf_unlikely(!rx_netbuf)) {
DP_STATS_INC(dp_pdev, replenish.nbuf_alloc_fail, 1);
@@ -254,7 +252,7 @@ QDF_STATUS __dp_rx_buffers_replenish(struct dp_soc *dp_soc, uint32_t mac_id,
QDF_DMA_FROM_DEVICE, buf_size);
if (qdf_unlikely(QDF_IS_STATUS_ERROR(ret))) {
qdf_nbuf_free(rx_netbuf);
dp_rx_buffer_pool_nbuf_free(dp_soc, rx_netbuf, mac_id);
DP_STATS_INC(dp_pdev, replenish.map_err, 1);
continue;
}
@@ -2004,6 +2002,8 @@ uint32_t dp_rx_process(struct dp_intr *int_ctx, hal_ring_handle_t hal_ring_hdl,
uint32_t num_entries = 0;
struct hal_rx_msdu_metadata msdu_metadata;
QDF_STATUS status;
qdf_nbuf_t ebuf_head;
qdf_nbuf_t ebuf_tail;
DP_HIST_INIT();
@@ -2025,6 +2025,8 @@ more_data:
peer = NULL;
vdev = NULL;
num_rx_bufs_reaped = 0;
ebuf_head = NULL;
ebuf_tail = NULL;
qdf_mem_zero(rx_bufs_reaped, sizeof(rx_bufs_reaped));
qdf_mem_zero(&mpdu_desc_info, sizeof(mpdu_desc_info));
@@ -2088,7 +2090,8 @@ more_data:
QDF_DMA_FROM_DEVICE,
RX_DATA_BUFFER_SIZE);
rx_desc->unmapped = 1;
qdf_nbuf_free(rx_desc->nbuf);
dp_rx_buffer_pool_nbuf_free(soc, rx_desc->nbuf,
rx_desc->pool_id);
dp_rx_add_to_free_desc_list(
&head[rx_desc->pool_id],
&tail[rx_desc->pool_id],
@@ -2231,8 +2234,8 @@ more_data:
QDF_DMA_FROM_DEVICE,
rx_desc_pool->buf_size);
rx_desc->unmapped = 1;
DP_RX_LIST_APPEND(nbuf_head, nbuf_tail, rx_desc->nbuf);
DP_RX_PROCESS_NBUF(soc, nbuf_head, nbuf_tail, ebuf_head,
ebuf_tail, rx_desc);
/*
* if continuation bit is set then we have MSDU spread
* across multiple buffers, let us not decrement quota
@@ -2972,6 +2975,11 @@ dp_rx_pdev_buffers_alloc(struct dp_pdev *pdev)
rx_desc_pool = &soc->rx_desc_buf[mac_for_pdev];
/* Initialize RX buffer pool which will be
* used during low memory conditions
*/
dp_rx_buffer_pool_init(soc, mac_for_pdev);
return dp_pdev_rx_buffers_attach(soc, mac_for_pdev, dp_rxdma_srng,
rx_desc_pool, rxdma_entries - 1);
}
@@ -2991,6 +2999,7 @@ dp_rx_pdev_buffers_free(struct dp_pdev *pdev)
rx_desc_pool = &soc->rx_desc_buf[mac_for_pdev];
dp_rx_desc_nbuf_free(soc, rx_desc_pool);
dp_rx_buffer_pool_deinit(soc, mac_for_pdev);
}
/*