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] Revert "ath10k: fix DMA related firmware crashes on multiple devices" Date: Tue, 22 Oct 2019 16:57:09 +0800 [thread overview] Message-ID: <1571734629-18028-1-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> --- drivers/net/wireless/ath/ath10k/hw.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h index 35a3623..17f620b 100644 --- a/drivers/net/wireless/ath/ath10k/hw.h +++ b/drivers/net/wireless/ath/ath10k/hw.h @@ -753,7 +753,7 @@ ath10k_is_rssi_enable(struct ath10k_hw_params *hw, #define TARGET_10X_MAX_FRAG_ENTRIES 0 /* 10.2 parameters */ -#define TARGET_10_2_DMA_BURST_SIZE 0 +#define TARGET_10_2_DMA_BURST_SIZE 1 /* Target specific defines for WMI-TLV firmware */ #define TARGET_TLV_NUM_VDEVS 4 @@ -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
WARNING: multiple messages have this Message-ID (diff)
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] Revert "ath10k: fix DMA related firmware crashes on multiple devices" Date: Tue, 22 Oct 2019 16:57:09 +0800 [thread overview] Message-ID: <1571734629-18028-1-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> --- drivers/net/wireless/ath/ath10k/hw.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h index 35a3623..17f620b 100644 --- a/drivers/net/wireless/ath/ath10k/hw.h +++ b/drivers/net/wireless/ath/ath10k/hw.h @@ -753,7 +753,7 @@ ath10k_is_rssi_enable(struct ath10k_hw_params *hw, #define TARGET_10X_MAX_FRAG_ENTRIES 0 /* 10.2 parameters */ -#define TARGET_10_2_DMA_BURST_SIZE 0 +#define TARGET_10_2_DMA_BURST_SIZE 1 /* Target specific defines for WMI-TLV firmware */ #define TARGET_TLV_NUM_VDEVS 4 @@ -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
next reply other threads:[~2019-10-22 8:57 UTC|newest] Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-10-22 8:57 Zhi Chen [this message] 2019-10-22 8:57 ` [PATCH RFC] Revert "ath10k: fix DMA related firmware crashes on multiple devices" Zhi Chen 2019-10-22 10:07 ` Tom Psyborg 2019-10-22 10:07 ` Tom Psyborg 2019-10-30 2:44 ` zhichen 2019-10-30 2:44 ` zhichen 2019-11-06 10:01 ` Tom Psyborg 2019-11-06 10:01 ` Tom Psyborg 2019-11-07 5:35 ` zhichen 2019-11-07 5:35 ` zhichen 2019-10-22 17:16 ` Peter Oh 2019-10-22 17:16 ` Peter Oh 2019-10-22 18:24 ` Adrian Chadd 2019-10-22 18:24 ` Adrian Chadd 2019-10-30 6:04 ` Peter Oh 2019-10-30 6:04 ` Peter Oh 2019-10-30 6:28 ` zhichen 2019-10-30 6:28 ` zhichen 2019-10-30 6:16 ` zhichen 2019-10-30 6:16 ` zhichen 2019-10-30 23:01 ` Peter Oh 2019-10-30 23:01 ` Peter Oh 2019-11-03 15:36 ` Tom Psyborg 2019-11-03 15:36 ` Tom Psyborg 2019-11-04 18:41 ` Peter Oh 2019-11-04 18:41 ` Peter Oh
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