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Re: [PATCH v6 2/3] ath10k: change max RX bundle size from 8 to 32 for sdio

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On 2019-10-24 17:25, Kalle Valo wrote:
Wen Gong <wgong@xxxxxxxxxxxxxx> writes:

The max bundle size support by firmware is 32, change it from 8 to 32
will help performance. This results in significant performance
improvement on RX path.

Tested with QCA6174 SDIO with firmware
WLAN.RMH.4.4.1-00017-QCARMSWPZ-1

Signed-off-by: Wen Gong <wgong@xxxxxxxxxxxxxx>
---
 drivers/net/wireless/ath/ath10k/htc.h  | 12 +++++++++---
 drivers/net/wireless/ath/ath10k/sdio.c |  4 ++--
 drivers/net/wireless/ath/ath10k/sdio.h |  4 ++--
 3 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htc.h b/drivers/net/wireless/ath/ath10k/htc.h
index f55d3ca..7055156 100644
--- a/drivers/net/wireless/ath/ath10k/htc.h
+++ b/drivers/net/wireless/ath/ath10k/htc.h
@@ -39,7 +39,7 @@
  * 4-byte aligned.
  */

-#define HTC_HOST_MAX_MSG_PER_RX_BUNDLE        8
+#define HTC_HOST_MAX_MSG_PER_RX_BUNDLE        32

So how do I know that this change doesn't break any other hardware? I
did a quick review and I think it's safe, but the commit log mentions
nothing about this.
the real max rx bundle is decided in ath10k_htc_wait_target.
it is the min value of HTC_HOST_MAX_MSG_PER_RX_BUNDLE and the value reported from firmware.
htc->max_msgs_per_htc_bundle =
			min_t(u8, msg->ready_ext.max_msgs_per_htc_bundle,
			      HTC_HOST_MAX_MSG_PER_RX_BUNDLE);

Please clarify and I can update the commit log.



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