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qcacmn: Add AST entry for Destination MAC in RX path

Telusuri Sumber 
Because of a HW issue we have added a WAR where we do
learning even on destination MAC address. This will ensure
da_is_valid even for forwarding traffic and HW will cache
this entry for subsequent pkts there by we achieve better
throughput in UL.

Change-Id: Ib61693e9ce52b3a1cdcd4c34eabb3d8368b1ef13
This commit is contained in:
Tallapragada Kalyan
2018-08-31 19:30:54 +05:30
committed by nshrivas
orang tua 1c6217a666
melakukan 2ae71e0531
4 mengubah file dengan 56 tambahan dan 3 penghapusan
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1
dp/inc/cdp_txrx_cmn_struct.h
Melihat File

@@ -313,6 +313,7 @@ enum cdp_txrx_ast_entry_type {
CDP_TXRX_AST_TYPE_MEC, /* Multicast echo ast entry type */
CDP_TXRX_AST_TYPE_WDS_HM, /* HM WDS entry */
CDP_TXRX_AST_TYPE_STA_BSS, /* BSS entry(STA mode) */
CDP_TXRX_AST_TYPE_DA, /* AST entry based on Destination address */
CDP_TXRX_AST_TYPE_MAX
};

2
dp/wifi3.0/dp_main.c
Melihat File

@@ -872,7 +872,7 @@ static void dp_print_ast_stats(struct dp_soc *soc)
struct dp_peer *peer;
struct dp_ast_entry *ase, *tmp_ase;
char type[CDP_TXRX_AST_TYPE_MAX][10] = {
"NONE", "STATIC", "SELF", "WDS", "MEC", "HMWDS", "BSS"};
"NONE", "STATIC", "SELF", "WDS", "MEC", "HMWDS", "BSS", "DA"};
DP_PRINT_STATS("AST Stats:");
DP_PRINT_STATS(" Entries Added = %d", soc->stats.ast.added);

7
dp/wifi3.0/dp_peer.c
Melihat File

@@ -587,6 +587,10 @@ int dp_peer_add_ast(struct dp_soc *soc,
ast_entry->next_hop = 1;
ast_entry->type = CDP_TXRX_AST_TYPE_MEC;
break;
case CDP_TXRX_AST_TYPE_DA:
ast_entry->next_hop = 1;
ast_entry->type = CDP_TXRX_AST_TYPE_DA;
break;
default:
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
FL("Incorrect AST entry type"));
@@ -598,7 +602,8 @@ int dp_peer_add_ast(struct dp_soc *soc,
dp_peer_ast_hash_add(soc, ast_entry);
qdf_spin_unlock_bh(&soc->ast_lock);
if (ast_entry->type == CDP_TXRX_AST_TYPE_MEC)
if (ast_entry->type == CDP_TXRX_AST_TYPE_MEC ||
ast_entry->type == CDP_TXRX_AST_TYPE_DA)
qdf_mem_copy(next_node_mac, peer->vdev->mac_addr.raw, 6);
else
qdf_mem_copy(next_node_mac, peer->mac_addr.raw, 6);

49
dp/wifi3.0/dp_rx.c
Melihat File

@@ -336,6 +336,46 @@ dp_get_vdev_from_peer(struct dp_soc *soc,
}
#endif
/**
* dp_rx_da_learn() - Add AST entry based on DA lookup
* This is a WAR for HK 1.0 and will
* be removed in HK 2.0
*
* @soc: core txrx main context
* @rx_tlv_hdr : start address of rx tlvs
* @sa_peer : source peer entry
* @nbuf : nbuf to retrieve destination mac for which AST will be added
*
*/
#ifdef FEATURE_WDS
static void
dp_rx_da_learn(struct dp_soc *soc,
uint8_t *rx_tlv_hdr,
struct dp_peer *ta_peer,
qdf_nbuf_t nbuf)
{
if (ta_peer && (ta_peer->vdev->opmode != wlan_op_mode_ap))
return;
if (qdf_unlikely(!hal_rx_msdu_end_da_is_valid_get(rx_tlv_hdr) &&
!hal_rx_msdu_end_da_is_mcbc_get(rx_tlv_hdr))) {
dp_peer_add_ast(soc,
ta_peer,
qdf_nbuf_data(nbuf),
CDP_TXRX_AST_TYPE_DA,
IEEE80211_NODE_F_WDS_HM);
}
}
#else
static void
dp_rx_da_learn(struct dp_soc *soc,
uint8_t *rx_tlv_hdr,
struct dp_peer *ta_peer,
qdf_nbuf_t nbuf)
{
}
#endif
/**
* dp_rx_intrabss_fwd() - Implements the Intra-BSS forwarding logic
*
@@ -371,6 +411,11 @@ dp_rx_intrabss_fwd(struct dp_soc *soc,
if (!ast_entry)
return false;
if (ast_entry->type == CDP_TXRX_AST_TYPE_DA) {
ast_entry->is_active = TRUE;
return false;
}
da_peer = ast_entry->peer;
if (!da_peer)
@@ -1668,9 +1713,11 @@ done:
htt_cmn_pkt_type_ethernet) &&
qdf_likely(!vdev->mesh_vdev)) {
/* WDS Source Port Learning */
if (vdev->wds_enabled)
if (vdev->wds_enabled) {
dp_rx_da_learn(soc, rx_tlv_hdr, peer, nbuf);
dp_rx_wds_srcport_learn(soc, rx_tlv_hdr,
peer, nbuf);
}
/* Intrabss-fwd */
if (dp_rx_check_ap_bridge(vdev))