From: Zhi Chen <zhichen@codeaurora.org>
To: ath10k@lists.infradead.org
Cc: Zhi Chen <zhichen@codeaurora.org>, linux-wireless@vger.kernel.org
Subject: [PATCH RFC, v2] Revert "ath10k: fix DMA related firmware crashes on multiple devices"
Date: Fri, 15 Nov 2019 17:02:53 +0800 [thread overview]
Message-ID: <1573808573-12159-1-git-send-email-zhichen@codeaurora.org> (raw)
This reverts commit 76d164f582150fd0259ec0fcbc485470bcd8033e.
PCIe hung issue was observed on multiple platforms. The issue was reproduced
when DUT was configured as AP and associated with 50+ STAs.
With PCIe protocol analyzer, we can see DMA Read crossing 4KB boundary when
issue happened. It broke PCIe spec and caused PCIe stuck.
Tested: IPQ8064 + QCA9984 with firmware 10.4-3.10-00047
QCS404 + QCA9984 with firmware 10.4-3.9.0.2--00044
Synaptics AS370 + QCA9888 with firmware 10.4-3.9.0.2--00040
Signed-off-by: Zhi Chen <zhichen@codeaurora.org>
---
v2: revert 10.4 only because old chips have different AXI RD/WR CFG
---
drivers/net/wireless/ath/ath10k/hw.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 35a3623..59a9a58 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -813,7 +813,7 @@ ath10k_is_rssi_enable(struct ath10k_hw_params *hw,
#define TARGET_10_4_TX_DBG_LOG_SIZE 1024
#define TARGET_10_4_NUM_WDS_ENTRIES 32
-#define TARGET_10_4_DMA_BURST_SIZE 0
+#define TARGET_10_4_DMA_BURST_SIZE 1
#define TARGET_10_4_MAC_AGGR_DELIM 0
#define TARGET_10_4_RX_SKIP_DEFRAG_TIMEOUT_DUP_DETECTION_CHECK 1
#define TARGET_10_4_VOW_CONFIG 0
--
2.7.4
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
WARNING: multiple messages have this Message-ID (diff)
From: Zhi Chen <zhichen@codeaurora.org>
To: ath10k@lists.infradead.org
Cc: linux-wireless@vger.kernel.org, Zhi Chen <zhichen@codeaurora.org>
Subject: [PATCH RFC,v2] Revert "ath10k: fix DMA related firmware crashes on multiple devices"
Date: Fri, 15 Nov 2019 17:02:53 +0800 [thread overview]
Message-ID: <1573808573-12159-1-git-send-email-zhichen@codeaurora.org> (raw)
This reverts commit 76d164f582150fd0259ec0fcbc485470bcd8033e.
PCIe hung issue was observed on multiple platforms. The issue was reproduced
when DUT was configured as AP and associated with 50+ STAs.
With PCIe protocol analyzer, we can see DMA Read crossing 4KB boundary when
issue happened. It broke PCIe spec and caused PCIe stuck.
Tested: IPQ8064 + QCA9984 with firmware 10.4-3.10-00047
QCS404 + QCA9984 with firmware 10.4-3.9.0.2--00044
Synaptics AS370 + QCA9888 with firmware 10.4-3.9.0.2--00040
Signed-off-by: Zhi Chen <zhichen@codeaurora.org>
---
v2: revert 10.4 only because old chips have different AXI RD/WR CFG
---
drivers/net/wireless/ath/ath10k/hw.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 35a3623..59a9a58 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -813,7 +813,7 @@ ath10k_is_rssi_enable(struct ath10k_hw_params *hw,
#define TARGET_10_4_TX_DBG_LOG_SIZE 1024
#define TARGET_10_4_NUM_WDS_ENTRIES 32
-#define TARGET_10_4_DMA_BURST_SIZE 0
+#define TARGET_10_4_DMA_BURST_SIZE 1
#define TARGET_10_4_MAC_AGGR_DELIM 0
#define TARGET_10_4_RX_SKIP_DEFRAG_TIMEOUT_DUP_DETECTION_CHECK 1
#define TARGET_10_4_VOW_CONFIG 0
--
2.7.4
next reply other threads:[~2019-11-15 9:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-15 9:02 Zhi Chen [this message]
2019-11-15 9:02 ` [PATCH RFC,v2] Revert "ath10k: fix DMA related firmware crashes on multiple devices" Zhi Chen
2019-11-22 9:45 ` [PATCH RFC, v2] " Kalle Valo
2019-11-22 9:45 ` Kalle Valo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1573808573-12159-1-git-send-email-zhichen@codeaurora.org \
--to=zhichen@codeaurora.org \
--cc=ath10k@lists.infradead.org \
--cc=linux-wireless@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.