samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
포크 0
코드 이슈 풀 리퀘스트 Actions Packages Projects 릴리즈 위키 활동

qcacmn: Rx optimizations to improve small pkt perf

소스 검색 
basically tried reading peer_id from peer structure
to avoid 1 cache-line miss per pkt and access mac address
from frame data for WDS only if WDS condition is valid.
The other optimization is to avoid accessing queue_mapping
field of skb for skb received which is at 140 offset
This again helps to avoid i cache miss.
Another place is to do a memcpy only when we intend to
add an ast entry.

Change-Id: I7e328060c505bc21419d045e77329c2cda9e3644
CRs-fixed: 2388857
This commit is contained in:
Tallapragada Kalyan
2019-05-02 13:22:34 +05:30
committed by nshrivas
부모 5bcc30f51c
커밋 9e4b36fd89
3개의 변경된 파일과 28개의 추가작업 그리고 20개의 파일을 삭제
Download Patch File Download Diff File Expand all files Collapse all files

22
dp/wifi3.0/dp_rx.h
파일 보기

@@ -439,7 +439,7 @@ void dp_rx_add_to_free_desc_list(union dp_rx_desc_list_elem_t **head,
#ifdef FEATURE_WDS
static inline void
dp_rx_wds_add_or_update_ast(struct dp_soc *soc, struct dp_peer *ta_peer,
uint8_t *wds_src_mac, uint8_t is_ad4_valid,
qdf_nbuf_t nbuf, uint8_t is_ad4_valid,
uint8_t is_sa_valid, uint8_t is_chfrag_start,
uint16_t sa_idx, uint16_t sa_sw_peer_id)
{
@@ -449,6 +449,7 @@ dp_rx_wds_add_or_update_ast(struct dp_soc *soc, struct dp_peer *ta_peer,
uint32_t ret = 0;
struct dp_neighbour_peer *neighbour_peer = NULL;
struct dp_pdev *pdev = ta_peer->vdev->pdev;
uint8_t wds_src_mac[QDF_MAC_ADDR_SIZE];
/* For AP mode : Do wds source port learning only if it is a
* 4-address mpdu
@@ -470,6 +471,10 @@ dp_rx_wds_add_or_update_ast(struct dp_soc *soc, struct dp_peer *ta_peer,
}
if (qdf_unlikely(!is_sa_valid)) {
qdf_mem_copy(wds_src_mac,
(qdf_nbuf_data(nbuf) + QDF_MAC_ADDR_SIZE),
QDF_MAC_ADDR_SIZE);
ret = dp_peer_add_ast(soc,
ta_peer,
wds_src_mac,
@@ -497,6 +502,10 @@ dp_rx_wds_add_or_update_ast(struct dp_soc *soc, struct dp_peer *ta_peer,
* cached.
*/
if (!soc->ast_override_support) {
qdf_mem_copy(wds_src_mac,
(qdf_nbuf_data(nbuf) + QDF_MAC_ADDR_SIZE),
QDF_MAC_ADDR_SIZE);
ret = dp_peer_add_ast(soc,
ta_peer,
wds_src_mac,
@@ -512,6 +521,11 @@ dp_rx_wds_add_or_update_ast(struct dp_soc *soc, struct dp_peer *ta_peer,
* to FW.
*/
if (pdev->neighbour_peers_added) {
qdf_mem_copy(wds_src_mac,
(qdf_nbuf_data(nbuf) +
QDF_MAC_ADDR_SIZE),
QDF_MAC_ADDR_SIZE);
qdf_spin_lock_bh(&pdev->neighbour_peer_mutex);
TAILQ_FOREACH(neighbour_peer,
&pdev->neighbour_peers_list,
@@ -624,7 +638,6 @@ dp_rx_wds_srcport_learn(struct dp_soc *soc,
{
uint16_t sa_sw_peer_id = hal_rx_msdu_end_sa_sw_peer_id_get(rx_tlv_hdr);
uint8_t sa_is_valid = hal_rx_msdu_end_sa_is_valid_get(rx_tlv_hdr);
uint8_t wds_src_mac[QDF_MAC_ADDR_SIZE];
uint16_t sa_idx;
uint8_t is_chfrag_start = 0;
uint8_t is_ad4_valid = 0;
@@ -636,15 +649,12 @@ dp_rx_wds_srcport_learn(struct dp_soc *soc,
if (is_chfrag_start)
is_ad4_valid = hal_rx_get_mpdu_mac_ad4_valid(rx_tlv_hdr);
memcpy(wds_src_mac, (qdf_nbuf_data(nbuf) + QDF_MAC_ADDR_SIZE),
QDF_MAC_ADDR_SIZE);
/*
* Get the AST entry from HW SA index and mark it as active
*/
sa_idx = hal_rx_msdu_end_sa_idx_get(rx_tlv_hdr);
dp_rx_wds_add_or_update_ast(soc, ta_peer, wds_src_mac, is_ad4_valid,
dp_rx_wds_add_or_update_ast(soc, ta_peer, nbuf, is_ad4_valid,
sa_is_valid, is_chfrag_start,
sa_idx, sa_sw_peer_id);