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ath10k: reduce number of peers to support peer stats feature

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To enable per peer stats feature we are reducing the number of peers.
Firmware has introduced tx stats feature. We have memory limitation in
firmware to add these additional bytes.

These are the new variables introduced in the firmware.
========		=======================
Variable	      	Bytes required/per rate
========		=======================
TX success packets 	1
TX failed packets	1
Retry packets		1
Success bytes		2
TX failed bytes		2
Retry bytes		2
Tx duration		4
Rate			1
Bw and AMPDU flags	1
Total			16 (because of allocation in word pattern)

Firmware sends these tx_stats in pktlog.
If we consider 4 feedbacks at a time, Frimware need about ~1K memory for coding
and 8192 bytes required / per rate [ 4*16*128(peers)].
To accommodate this firmware needs to reduce 10 peers.

This fixes a firmware crash with firmware-5.bin_10.2.4.70.22-2.

Signed-off-by: Anilkumar Kolli <akolli@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Anilkumar Kolli
2016-02-23 12:19:57 +05:30
committed by Kalle Valo
parent da6416cac6
commit af9a6a3ad0
3 changed files with 20 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/wireless/ath/ath10k/wmi.c
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@@ -5516,9 +5516,15 @@ static struct sk_buff *ath10k_wmi_10_2_op_gen_init(struct ath10k *ar)
u32 len, val, features;
config.num_vdevs = __cpu_to_le32(TARGET_10X_NUM_VDEVS);
config.num_peers = __cpu_to_le32(TARGET_10X_NUM_PEERS);
config.num_peer_keys = __cpu_to_le32(TARGET_10X_NUM_PEER_KEYS);
config.num_tids = __cpu_to_le32(TARGET_10X_NUM_TIDS);
if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map)) {
config.num_peers = __cpu_to_le32(TARGET_10X_TX_STATS_NUM_PEERS);
config.num_tids = __cpu_to_le32(TARGET_10X_TX_STATS_NUM_TIDS);
} else {
config.num_peers = __cpu_to_le32(TARGET_10X_NUM_PEERS);
config.num_tids = __cpu_to_le32(TARGET_10X_NUM_TIDS);
}
config.ast_skid_limit = __cpu_to_le32(TARGET_10X_AST_SKID_LIMIT);
config.tx_chain_mask = __cpu_to_le32(TARGET_10X_TX_CHAIN_MASK);
config.rx_chain_mask = __cpu_to_le32(TARGET_10X_RX_CHAIN_MASK);