Hi All,
In order to reuse HTT Rx descriptor (copy engine 5), HTT response
processing should be decoupled from txrx data processing. This change also
helps to reduce rx ring lock contention. As txrx tasklet's work load is
reduced, rx replenish task can be combined with txrx_task. Refilling
complete rx ring from txrx tasket is affecting UDP UL traffic in AP135
platform. Hence existing refill threshold is updated to meet peak
throughput in both AP135 and AP148 platforms. Instead of tasklet existing
refill timer is used to reschedule replenish work at an interval of 5 ms
incase of more deficit.
This series are experimented in both AP148(QCA99x0) & IPQ4019 platforms.
Below are consolidated report alongwith CPU usage. Thanks Tamizh for helping
to verify the changes.
IPQ4019(TOT) IPQ4019(+rework) AP148(TOT) AP148(+rework)
=========== =============== ========== =============
TCP DL 639 (40%) 646 (42%) 1134 (71%) 1134 (71%)
TCP UL 661 (31%) 663 (30%) 1244 (71%) 1270 (72%)
UDP DL 670 (50%) 682 (49%) 1240 (73%) 1244 (75%)
AP135 (OpenWrt TOT) AP135 (+changes)
================== ===============
TCP DL 603 620
TCP UL 430 428
UDP DL 758 803
UDP UL 420 450
-Rajkumar
Rajkumar Manoharan (9):
ath10k: speedup htt rx descriptor processing for tx completion
ath10k: copy tx fetch indication message
ath10k: remove unused fw_desc processing
ath10k: cleanup amsdu processing for rx indication
ath10k: speedup htt rx descriptor processing for rx_ind
ath10k: register ath10k_htt_htc_t2h_msg_handler
ath10k: cleanup copy engine receive next completion
ath10k: reuse copy engine 5 (htt rx) descriptors
ath10k: combine txrx and replenish task
drivers/net/wireless/ath/ath10k/ce.c | 44 ++---
drivers/net/wireless/ath/ath10k/ce.h | 13 +-
drivers/net/wireless/ath/ath10k/htt.c | 2 +-
drivers/net/wireless/ath/ath10k/htt.h | 25 ++-
drivers/net/wireless/ath/ath10k/htt_rx.c | 301 ++++++++++++-------------------
drivers/net/wireless/ath/ath10k/htt_tx.c | 14 +-
drivers/net/wireless/ath/ath10k/pci.c | 106 ++++++++---
drivers/net/wireless/ath/ath10k/txrx.c | 12 +-
8 files changed, 260 insertions(+), 257 deletions(-)
--
2.7.4
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
