ath10k.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
* [PATCH v2 0/2] ath10k: Fixes during subsystem recovery
@ 2020-06-26 18:53 Rakesh Pillai
  2020-06-26 18:53 ` [PATCH v2 1/2] ath10k: Pause the tx queues when firmware is down Rakesh Pillai
                   ` (3 more replies)
  0 siblings, 4 replies; 8+ messages in thread
From: Rakesh Pillai @ 2020-06-26 18:53 UTC (permalink / raw)
  To: ath10k; +Cc: Rakesh Pillai, linux-wireless, linux-kernel

This patch series includes some fixes when the device
is in recovery mode, i.e. when the firmware goes down.

- Pausing TX queues when FW goes down
- Removed unwanted/extra error logging in pkt TX path
- Skipping wait for FW response for delete cmds
- Handling the -ESHUTDOWN error code in case of SSR.

Rakesh Pillai (2):
  ath10k: Pause the tx queues when firmware is down
  ath10k: Skip wait for delete response if firmware is down

 drivers/net/wireless/ath/ath10k/core.h |  1 +
 drivers/net/wireless/ath/ath10k/mac.c  | 36 ++++++++++++++++++++++------------
 drivers/net/wireless/ath/ath10k/snoc.c |  3 +++
 3 files changed, 28 insertions(+), 12 deletions(-)

-- 
2.7.4


_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k

^ permalink raw reply	[flat|nested] 8+ messages in thread

* [PATCH v2 1/2] ath10k: Pause the tx queues when firmware is down
  2020-06-26 18:53 [PATCH v2 0/2] ath10k: Fixes during subsystem recovery Rakesh Pillai
@ 2020-06-26 18:53 ` Rakesh Pillai
  2020-06-26 18:53 ` [PATCH v2 2/2] ath10k: Skip wait for delete response if " Rakesh Pillai
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 8+ messages in thread
From: Rakesh Pillai @ 2020-06-26 18:53 UTC (permalink / raw)
  To: ath10k; +Cc: Rakesh Pillai, linux-wireless, linux-kernel

When the FW goes down, the transmission of
packets cannot be done. Currently we are not
pausing the tx queues, hence there will be too
many attempts to trasmit packets and each of
them resulting in failure and thereby logging
unwanted failure messages onto the console,
as shown below

[   60.842192] ath10k_snoc 18800000.wifi: failed to transmit packet, dropping: -108
[   60.850181] ath10k_snoc 18800000.wifi: failed to submit frame: -108
[   60.857058] ath10k_snoc 18800000.wifi: failed to push frame: -108
[   60.936217] ath10k_snoc 18800000.wifi: failed to transmit packet, dropping: -108
[   60.944496] ath10k_snoc 18800000.wifi: failed to submit frame: -108
[   60.951265] ath10k_snoc 18800000.wifi: failed to push frame: -108
[   61.976589] ath10k_snoc 18800000.wifi: failed to transmit packet, dropping: -108

Stop the tx queues when the wlan firmware is
down and also remove the unwanted duplicate/extra
logging in the packet transmission path.

Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.1-01040-QCAHLSWMTPLZ-1

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/core.h |  1 +
 drivers/net/wireless/ath/ath10k/mac.c  | 18 ++++++++++--------
 drivers/net/wireless/ath/ath10k/snoc.c |  3 +++
 3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 62b1502..040053a 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -900,6 +900,7 @@ static inline const char *ath10k_scan_state_str(enum ath10k_scan_state state)
 
 enum ath10k_tx_pause_reason {
 	ATH10K_TX_PAUSE_Q_FULL,
+	ATH10K_TX_PAUSE_FW_DOWN,
 	ATH10K_TX_PAUSE_MAX,
 };
 
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 3e38962..dc7befc 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3348,6 +3348,7 @@ void ath10k_mac_tx_lock(struct ath10k *ar, int reason)
 	ar->tx_paused |= BIT(reason);
 	ieee80211_stop_queues(ar->hw);
 }
+EXPORT_SYMBOL(ath10k_mac_tx_lock);
 
 static void ath10k_mac_tx_unlock_iter(void *data, u8 *mac,
 				      struct ieee80211_vif *vif)
@@ -3378,6 +3379,7 @@ void ath10k_mac_tx_unlock(struct ath10k *ar, int reason)
 
 	ieee80211_wake_queue(ar->hw, ar->hw->offchannel_tx_hw_queue);
 }
+EXPORT_SYMBOL(ath10k_mac_tx_unlock);
 
 void ath10k_mac_vif_tx_lock(struct ath10k_vif *arvif, int reason)
 {
@@ -3748,11 +3750,8 @@ static int ath10k_mac_tx_submit(struct ath10k *ar,
 		break;
 	}
 
-	if (ret) {
-		ath10k_warn(ar, "failed to transmit packet, dropping: %d\n",
-			    ret);
+	if (ret)
 		ieee80211_free_txskb(ar->hw, skb);
-	}
 
 	return ret;
 }
@@ -3806,10 +3805,8 @@ static int ath10k_mac_tx(struct ath10k *ar,
 	}
 
 	ret = ath10k_mac_tx_submit(ar, txmode, txpath, skb);
-	if (ret) {
-		ath10k_warn(ar, "failed to submit frame: %d\n", ret);
+	if (ret)
 		return ret;
-	}
 
 	return 0;
 }
@@ -4441,7 +4438,12 @@ static void ath10k_mac_op_tx(struct ieee80211_hw *hw,
 
 	ret = ath10k_mac_tx(ar, vif, txmode, txpath, skb, false);
 	if (ret) {
-		ath10k_warn(ar, "failed to transmit frame: %d\n", ret);
+		if (ret == -ESHUTDOWN)
+			ath10k_dbg(ar, ATH10K_DBG_MAC, "failed to transmit frame: %d\n",
+				   ret);
+		else
+			ath10k_warn(ar, "failed to transmit frame: %d\n", ret);
+
 		if (is_htt) {
 			spin_lock_bh(&ar->htt.tx_lock);
 			ath10k_htt_tx_dec_pending(htt);
diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
index 407a074..8440e64 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -20,6 +20,7 @@
 #include "hif.h"
 #include "htc.h"
 #include "snoc.h"
+#include "mac.h"
 
 #define ATH10K_SNOC_RX_POST_RETRY_MS 50
 #define CE_POLL_PIPE 4
@@ -1296,6 +1297,7 @@ int ath10k_snoc_fw_indication(struct ath10k *ar, u64 type)
 	switch (type) {
 	case ATH10K_QMI_EVENT_FW_READY_IND:
 		if (test_bit(ATH10K_SNOC_FLAG_REGISTERED, &ar_snoc->flags)) {
+			ath10k_mac_tx_unlock(ar, ATH10K_TX_PAUSE_FW_DOWN);
 			queue_work(ar->workqueue, &ar->restart_work);
 			break;
 		}
@@ -1313,6 +1315,7 @@ int ath10k_snoc_fw_indication(struct ath10k *ar, u64 type)
 	case ATH10K_QMI_EVENT_FW_DOWN_IND:
 		set_bit(ATH10K_SNOC_FLAG_RECOVERY, &ar_snoc->flags);
 		set_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags);
+		ath10k_mac_tx_lock(ar, ATH10K_TX_PAUSE_FW_DOWN);
 		break;
 	default:
 		ath10k_err(ar, "invalid fw indication: %llx\n", type);
-- 
2.7.4


_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k

^ permalink raw reply	[flat|nested] 8+ messages in thread

* [PATCH v2 2/2] ath10k: Skip wait for delete response if firmware is down
  2020-06-26 18:53 [PATCH v2 0/2] ath10k: Fixes during subsystem recovery Rakesh Pillai
  2020-06-26 18:53 ` [PATCH v2 1/2] ath10k: Pause the tx queues when firmware is down Rakesh Pillai
@ 2020-06-26 18:53 ` Rakesh Pillai
  2020-09-15  7:47 ` [PATCH v2 0/2] ath10k: Fixes during subsystem recovery Rakesh Pillai
  2020-12-21 18:37 ` Kalle Valo
  3 siblings, 0 replies; 8+ messages in thread
From: Rakesh Pillai @ 2020-06-26 18:53 UTC (permalink / raw)
  To: ath10k; +Cc: Rakesh Pillai, linux-wireless, linux-kernel

Currently the driver waits for response from the
firmware for all the delete cmds, eg: vdev_delete,
peer delete. If the firmware is down, these wait
will always timeout and return an error.

Also during subsytems recovery, any attempt to
send a WMI cmd to the FW will return the -ESHUTDOWN
status, which when returned to mac80211, can cause
unnecessary warnings to be printed on to the console,
as shown below

[ 2559.529565] Call trace:
[ 2559.532214]  __sta_info_destroy_part2+0x160/0x168 [mac80211]
[ 2559.538157]  __sta_info_flush+0x124/0x180 [mac80211]
[ 2559.543402]  ieee80211_set_disassoc+0x130/0x2c0 [mac80211]
[ 2559.549172]  ieee80211_mgd_deauth+0x238/0x25c [mac80211]
[ 2559.554764]  ieee80211_deauth+0x24/0x30 [mac80211]
[ 2559.559860]  cfg80211_mlme_deauth+0x258/0x2b0 [cfg80211]
[ 2559.565446]  nl80211_deauthenticate+0xe4/0x110 [cfg80211]
[ 2559.571064]  genl_rcv_msg+0x3a0/0x440
[ 2559.574888]  netlink_rcv_skb+0xb4/0x11c
[ 2559.578877]  genl_rcv+0x34/0x48
[ 2559.582162]  netlink_unicast+0x14c/0x1e4
[ 2559.586235]  netlink_sendmsg+0x2f0/0x360
[ 2559.590317]  sock_sendmsg+0x44/0x5c
[ 2559.593951]  ____sys_sendmsg+0x1c8/0x290
[ 2559.598029]  ___sys_sendmsg+0xa8/0xfc
[ 2559.601840]  __sys_sendmsg+0x8c/0xd0
[ 2559.605572]  __arm64_compat_sys_sendmsg+0x2c/0x38
[ 2559.610468]  el0_svc_common+0xa8/0x160
[ 2559.614372]  el0_svc_compat_handler+0x2c/0x38
[ 2559.618905]  el0_svc_compat+0x8/0x10

Skip the wait for delete response from the
firmware if the firmware is down. Also return
success to the mac80211 calls when the peer delete
cmd fails with return status -ESHUTDOWN.

Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.1-01040-QCAHLSWMTPLZ-1

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/mac.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index dc7befc..6882fcc 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -701,7 +701,8 @@ static void ath10k_wait_for_peer_delete_done(struct ath10k *ar, u32 vdev_id,
 	unsigned long time_left;
 	int ret;
 
-	if (test_bit(WMI_SERVICE_SYNC_DELETE_CMDS, ar->wmi.svc_map)) {
+	if (test_bit(WMI_SERVICE_SYNC_DELETE_CMDS, ar->wmi.svc_map) &&
+	    !test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags)) {
 		ret = ath10k_wait_for_peer_deleted(ar, vdev_id, addr);
 		if (ret) {
 			ath10k_warn(ar, "failed wait for peer deleted");
@@ -841,7 +842,8 @@ static int ath10k_peer_delete(struct ath10k *ar, u32 vdev_id, const u8 *addr)
 	if (ret)
 		return ret;
 
-	if (test_bit(WMI_SERVICE_SYNC_DELETE_CMDS, ar->wmi.svc_map)) {
+	if (test_bit(WMI_SERVICE_SYNC_DELETE_CMDS, ar->wmi.svc_map) &&
+	    !test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags)) {
 		unsigned long time_left;
 
 		time_left = wait_for_completion_timeout
@@ -5673,7 +5675,8 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
 		ath10k_warn(ar, "failed to delete WMI vdev %i: %d\n",
 			    arvif->vdev_id, ret);
 
-	if (test_bit(WMI_SERVICE_SYNC_DELETE_CMDS, ar->wmi.svc_map)) {
+	if (test_bit(WMI_SERVICE_SYNC_DELETE_CMDS, ar->wmi.svc_map) &&
+	    !test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags)) {
 		time_left = wait_for_completion_timeout(&ar->vdev_delete_done,
 							ATH10K_VDEV_DELETE_TIMEOUT_HZ);
 		if (time_left == 0) {
@@ -6110,6 +6113,11 @@ static int ath10k_hw_scan(struct ieee80211_hw *hw,
 		goto exit;
 	}
 
+	if (test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags)) {
+		ret = -ESHUTDOWN;
+		goto exit;
+	}
+
 	spin_lock_bh(&ar->data_lock);
 	switch (ar->scan.state) {
 	case ATH10K_SCAN_IDLE:
@@ -6758,7 +6766,9 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
 		}
 
 		ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
-		if (ret)
+		if (ret == -ESHUTDOWN)
+			ret = 0;
+		else if (ret)
 			ath10k_warn(ar, "failed to delete peer %pM for vdev %d: %i\n",
 				    sta->addr, arvif->vdev_id, ret);
 
-- 
2.7.4


_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k

^ permalink raw reply	[flat|nested] 8+ messages in thread

* RE: [PATCH v2 0/2] ath10k: Fixes during subsystem recovery
  2020-06-26 18:53 [PATCH v2 0/2] ath10k: Fixes during subsystem recovery Rakesh Pillai
  2020-06-26 18:53 ` [PATCH v2 1/2] ath10k: Pause the tx queues when firmware is down Rakesh Pillai
  2020-06-26 18:53 ` [PATCH v2 2/2] ath10k: Skip wait for delete response if " Rakesh Pillai
@ 2020-09-15  7:47 ` Rakesh Pillai
  2020-09-15 14:28   ` Kalle Valo
  2020-12-21 18:37 ` Kalle Valo
  3 siblings, 1 reply; 8+ messages in thread
From: Rakesh Pillai @ 2020-09-15  7:47 UTC (permalink / raw)
  To: ath10k, 'Kalle Valo'; +Cc: linux-wireless, linux-kernel



> -----Original Message-----
> From: Rakesh Pillai <pillair@codeaurora.org>
> Sent: Saturday, June 27, 2020 12:24 AM
> To: ath10k@lists.infradead.org
> Cc: linux-wireless@vger.kernel.org; linux-kernel@vger.kernel.org; Rakesh
> Pillai <pillair@codeaurora.org>
> Subject: [PATCH v2 0/2] ath10k: Fixes during subsystem recovery
> 
> This patch series includes some fixes when the device
> is in recovery mode, i.e. when the firmware goes down.
> 
> - Pausing TX queues when FW goes down
> - Removed unwanted/extra error logging in pkt TX path
> - Skipping wait for FW response for delete cmds
> - Handling the -ESHUTDOWN error code in case of SSR.
> 
> Rakesh Pillai (2):
>   ath10k: Pause the tx queues when firmware is down
>   ath10k: Skip wait for delete response if firmware is down
> 
>  drivers/net/wireless/ath/ath10k/core.h |  1 +
>  drivers/net/wireless/ath/ath10k/mac.c  | 36 ++++++++++++++++++++++---
> ---------
>  drivers/net/wireless/ath/ath10k/snoc.c |  3 +++
>  3 files changed, 28 insertions(+), 12 deletions(-)

Hi Kalle,
I see that this patch series is in Deferred state. Is there something
missing or blocking this ?


> 
> --
> 2.7.4



_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH v2 0/2] ath10k: Fixes during subsystem recovery
  2020-09-15  7:47 ` [PATCH v2 0/2] ath10k: Fixes during subsystem recovery Rakesh Pillai
@ 2020-09-15 14:28   ` Kalle Valo
  0 siblings, 0 replies; 8+ messages in thread
From: Kalle Valo @ 2020-09-15 14:28 UTC (permalink / raw)
  To: Rakesh Pillai; +Cc: linux-wireless, linux-kernel, ath10k

"Rakesh Pillai" <pillair@codeaurora.org> writes:

>> -----Original Message-----
>> From: Rakesh Pillai <pillair@codeaurora.org>
>> Sent: Saturday, June 27, 2020 12:24 AM
>> To: ath10k@lists.infradead.org
>> Cc: linux-wireless@vger.kernel.org; linux-kernel@vger.kernel.org; Rakesh
>> Pillai <pillair@codeaurora.org>
>> Subject: [PATCH v2 0/2] ath10k: Fixes during subsystem recovery
>> 
>> This patch series includes some fixes when the device
>> is in recovery mode, i.e. when the firmware goes down.
>> 
>> - Pausing TX queues when FW goes down
>> - Removed unwanted/extra error logging in pkt TX path
>> - Skipping wait for FW response for delete cmds
>> - Handling the -ESHUTDOWN error code in case of SSR.
>> 
>> Rakesh Pillai (2):
>>   ath10k: Pause the tx queues when firmware is down
>>   ath10k: Skip wait for delete response if firmware is down
>> 
>>  drivers/net/wireless/ath/ath10k/core.h |  1 +
>>  drivers/net/wireless/ath/ath10k/mac.c  | 36 ++++++++++++++++++++++---
>> ---------
>>  drivers/net/wireless/ath/ath10k/snoc.c |  3 +++
>>  3 files changed, 28 insertions(+), 12 deletions(-)
>
> Hi Kalle,
> I see that this patch series is in Deferred state. Is there something
> missing or blocking this ?

Yeah, time to review it ;) I still have quite a lot of patches in
deferred state but I'm trying to go through it, albeit slowly.

-- 
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH v2 0/2] ath10k: Fixes during subsystem recovery
  2020-06-26 18:53 [PATCH v2 0/2] ath10k: Fixes during subsystem recovery Rakesh Pillai
                   ` (2 preceding siblings ...)
  2020-09-15  7:47 ` [PATCH v2 0/2] ath10k: Fixes during subsystem recovery Rakesh Pillai
@ 2020-12-21 18:37 ` Kalle Valo
  2021-01-15 13:25   ` Rakesh Pillai
  2021-02-26 14:40   ` Rakesh Pillai
  3 siblings, 2 replies; 8+ messages in thread
From: Kalle Valo @ 2020-12-21 18:37 UTC (permalink / raw)
  To: Rakesh Pillai; +Cc: linux-wireless, linux-kernel, ath10k

Rakesh Pillai <pillair@codeaurora.org> writes:

> This patch series includes some fixes when the device
> is in recovery mode, i.e. when the firmware goes down.
>
> - Pausing TX queues when FW goes down
> - Removed unwanted/extra error logging in pkt TX path
> - Skipping wait for FW response for delete cmds
> - Handling the -ESHUTDOWN error code in case of SSR.
>
> Rakesh Pillai (2):
>   ath10k: Pause the tx queues when firmware is down
>   ath10k: Skip wait for delete response if firmware is down

This has been tested only on WCN3990. How do I know that this doesn't
break other hardware families?

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k

^ permalink raw reply	[flat|nested] 8+ messages in thread

* RE: [PATCH v2 0/2] ath10k: Fixes during subsystem recovery
  2020-12-21 18:37 ` Kalle Valo
@ 2021-01-15 13:25   ` Rakesh Pillai
  2021-02-26 14:40   ` Rakesh Pillai
  1 sibling, 0 replies; 8+ messages in thread
From: Rakesh Pillai @ 2021-01-15 13:25 UTC (permalink / raw)
  To: 'Kalle Valo'; +Cc: linux-wireless, linux-kernel, ath10k


> -----Original Message-----
> From: Kalle Valo <kvalo@codeaurora.org>
> Sent: Tuesday, December 22, 2020 12:07 AM
> To: Rakesh Pillai <pillair@codeaurora.org>
> Cc: ath10k@lists.infradead.org; linux-wireless@vger.kernel.org; linux-
> kernel@vger.kernel.org
> Subject: Re: [PATCH v2 0/2] ath10k: Fixes during subsystem recovery
> 
> Rakesh Pillai <pillair@codeaurora.org> writes:
> 
> > This patch series includes some fixes when the device
> > is in recovery mode, i.e. when the firmware goes down.
> >
> > - Pausing TX queues when FW goes down
> > - Removed unwanted/extra error logging in pkt TX path
> > - Skipping wait for FW response for delete cmds
> > - Handling the -ESHUTDOWN error code in case of SSR.
> >
> > Rakesh Pillai (2):
> >   ath10k: Pause the tx queues when firmware is down
> >   ath10k: Skip wait for delete response if firmware is down
> 
> This has been tested only on WCN3990. How do I know that this doesn't
> break other hardware families?

" ath10k: Pause the tx queues when firmware is down"
This is done only for SNOC (wcn3990) target and does not affect other
targets.

" ath10k: Skip wait for delete response if firmware is down"
The skip for wmi responses is done based on the flag
"ATH10K_FLAG_CRASH_FLUSH", which is generic for all targets.
Since if the FW is down, there wont be any response from the FW for any
target.

> 
> --
> https://patchwork.kernel.org/project/linux-wireless/list/
> 
> https://wireless.wiki.kernel.org/en/developers/documentation/submittingp
> atches


_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k

^ permalink raw reply	[flat|nested] 8+ messages in thread

* RE: [PATCH v2 0/2] ath10k: Fixes during subsystem recovery
  2020-12-21 18:37 ` Kalle Valo
  2021-01-15 13:25   ` Rakesh Pillai
@ 2021-02-26 14:40   ` Rakesh Pillai
  1 sibling, 0 replies; 8+ messages in thread
From: Rakesh Pillai @ 2021-02-26 14:40 UTC (permalink / raw)
  To: 'Kalle Valo'
  Cc: linux-wireless, linux-kernel, ath10k, 'Youghandhar Chintala'



> -----Original Message-----
> From: Rakesh Pillai <pillair@codeaurora.org>
> Sent: Friday, January 15, 2021 6:56 PM
> To: 'Kalle Valo' <kvalo@codeaurora.org>
> Cc: 'ath10k@lists.infradead.org' <ath10k@lists.infradead.org>; 'linux-
> wireless@vger.kernel.org' <linux-wireless@vger.kernel.org>; 'linux-
> kernel@vger.kernel.org' <linux-kernel@vger.kernel.org>
> Subject: RE: [PATCH v2 0/2] ath10k: Fixes during subsystem recovery
> 
> 
> > -----Original Message-----
> > From: Kalle Valo <kvalo@codeaurora.org>
> > Sent: Tuesday, December 22, 2020 12:07 AM
> > To: Rakesh Pillai <pillair@codeaurora.org>
> > Cc: ath10k@lists.infradead.org; linux-wireless@vger.kernel.org; linux-
> > kernel@vger.kernel.org
> > Subject: Re: [PATCH v2 0/2] ath10k: Fixes during subsystem recovery
> >
> > Rakesh Pillai <pillair@codeaurora.org> writes:
> >
> > > This patch series includes some fixes when the device
> > > is in recovery mode, i.e. when the firmware goes down.
> > >
> > > - Pausing TX queues when FW goes down
> > > - Removed unwanted/extra error logging in pkt TX path
> > > - Skipping wait for FW response for delete cmds
> > > - Handling the -ESHUTDOWN error code in case of SSR.
> > >
> > > Rakesh Pillai (2):
> > >   ath10k: Pause the tx queues when firmware is down
> > >   ath10k: Skip wait for delete response if firmware is down
> >
> > This has been tested only on WCN3990. How do I know that this doesn't
> > break other hardware families?
> 
> " ath10k: Pause the tx queues when firmware is down"
> This is done only for SNOC (wcn3990) target and does not affect other
> targets.
> 
> " ath10k: Skip wait for delete response if firmware is down"
> The skip for wmi responses is done based on the flag
> "ATH10K_FLAG_CRASH_FLUSH", which is generic for all targets.
> Since if the FW is down, there wont be any response from the FW for any
> target.
> 

Hi Kalle,
I see that these patches are in "deferred" state. Is there any info/change
needed in this patch ?

Thanks,
Rakesh Pillai.


_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k

^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2021-02-26 14:41 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-06-26 18:53 [PATCH v2 0/2] ath10k: Fixes during subsystem recovery Rakesh Pillai
2020-06-26 18:53 ` [PATCH v2 1/2] ath10k: Pause the tx queues when firmware is down Rakesh Pillai
2020-06-26 18:53 ` [PATCH v2 2/2] ath10k: Skip wait for delete response if " Rakesh Pillai
2020-09-15  7:47 ` [PATCH v2 0/2] ath10k: Fixes during subsystem recovery Rakesh Pillai
2020-09-15 14:28   ` Kalle Valo
2020-12-21 18:37 ` Kalle Valo
2021-01-15 13:25   ` Rakesh Pillai
2021-02-26 14:40   ` Rakesh Pillai

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).