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

qcacmn: API support for AST flow override

Browse Source 
Lithium HW can parse each MSDU when packets are enqueued to transmit
classifier and each MSDU can get enqueued to different MSDU-Queue.
By default, there are 2 queues per TID – UDP and NON-UDP. Based on
the flow parsing, packets will be queued to either of them.
Enterprise customers uses RAW mode frames which transmit classifier
would not be able to identify L4 protocol for  UDP or NON-UDP queue
for encrypted frames.
Customer can also have different application based packets which needs
to be enqueued to differently prioritized queues. They can choose to
tag each MSDU based on application DPI and derive the flow priority
as below –
•	UDP
•	NON-UDP
•	HI-PRIO
•	LOW-PRIO
Customer needs API support from host which will provide an ast-index
based on a particular flow id given peer mac address. Based on the mac
address, host will find the associated peer and return the ast_index &
cache set number corresponding to the flow id from peer flow based ast
entry table. Customer will then program this ast-index and ast override
in transmit classifier CMD ring to enqueue MSDU to a specific
flow-queuein TQM.
Host API:
Input parameter – uint8_t *peer mac address, uint8_t flow id
Output – uint16_t ast_index
Change-Id: I79557c31532514ad5ec0c1848827a3e5cd91cdf2
This commit is contained in:
Mainak Sen
2019-12-24 14:52:01 +05:30
committed by nshrivas
parent 394483b4a4
commit d13ed3e9e1
6 changed files with 144 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
dp/wifi3.0/dp_htt.c
View File

@@ -4018,6 +4018,10 @@ static void dp_htt_t2h_msg_handler(void *context, HTC_PACKET *pkt)
u_int8_t vdev_id;
bool is_wds;
u_int16_t ast_hash;
struct dp_ast_flow_override_info ast_flow_info;
qdf_mem_set(&ast_flow_info, 0,
sizeof(struct dp_ast_flow_override_info));
peer_id = HTT_RX_PEER_MAP_V2_SW_PEER_ID_GET(*msg_word);
hw_peer_id =
@@ -4030,6 +4034,40 @@ static void dp_htt_t2h_msg_handler(void *context, HTC_PACKET *pkt)
HTT_RX_PEER_MAP_V2_NEXT_HOP_GET(*(msg_word + 3));
ast_hash =
HTT_RX_PEER_MAP_V2_AST_HASH_VALUE_GET(*(msg_word + 3));
/*
* Update 4 ast_index per peer, ast valid mask
* and TID flow valid mask.
* AST valid mask is 3 bit field corresponds to
* ast_index[3:1]. ast_index 0 is always valid.
*/
ast_flow_info.ast_valid_mask =
HTT_RX_PEER_MAP_V2_AST_VALID_MASK_GET(*(msg_word + 3));
ast_flow_info.ast_idx[0] = hw_peer_id;
ast_flow_info.ast_flow_mask[0] =
HTT_RX_PEER_MAP_V2_AST_0_FLOW_MASK_GET(*(msg_word + 4));
ast_flow_info.ast_idx[1] =
HTT_RX_PEER_MAP_V2_AST_INDEX_1_GET(*(msg_word + 4));
ast_flow_info.ast_flow_mask[1] =
HTT_RX_PEER_MAP_V2_AST_1_FLOW_MASK_GET(*(msg_word + 4));
ast_flow_info.ast_idx[2] =
HTT_RX_PEER_MAP_V2_AST_INDEX_2_GET(*(msg_word + 5));
ast_flow_info.ast_flow_mask[2] =
HTT_RX_PEER_MAP_V2_AST_2_FLOW_MASK_GET(*(msg_word + 4));
ast_flow_info.ast_idx[3] =
HTT_RX_PEER_MAP_V2_AST_INDEX_3_GET(*(msg_word + 6));
ast_flow_info.ast_flow_mask[3] =
HTT_RX_PEER_MAP_V2_AST_3_FLOW_MASK_GET(*(msg_word + 4));
/*
* TID valid mask is applicable only
* for HI and LOW priority flows.
* tid_valid_mas is 8 bit field corresponds
* to TID[7:0]
*/
ast_flow_info.tid_valid_low_pri_mask =
HTT_RX_PEER_MAP_V2_TID_VALID_LOW_PRI_GET(*(msg_word + 5));
ast_flow_info.tid_valid_hi_pri_mask =
HTT_RX_PEER_MAP_V2_TID_VALID_HI_PRI_GET(*(msg_word + 5));
QDF_TRACE(QDF_MODULE_ID_TXRX,
QDF_TRACE_LEVEL_INFO,
"HTT_T2H_MSG_TYPE_PEER_MAP msg for peer id %d vdev id %d n",
@@ -4039,6 +4077,16 @@ static void dp_htt_t2h_msg_handler(void *context, HTC_PACKET *pkt)
hw_peer_id, vdev_id,
peer_mac_addr, ast_hash,
is_wds);
/*
* Update ast indexes for flow override support
* Applicable only for non wds peers
*/
dp_peer_ast_index_flow_queue_map_create(
soc->dp_soc, is_wds,
peer_id, peer_mac_addr,
&ast_flow_info);
break;
}
case HTT_T2H_MSG_TYPE_PEER_UNMAP_V2: