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From: Alex Elder <elder@linaro.org>
To: davem@davemloft.net, kuba@kernel.org
Cc: bjorn.andersson@linaro.org, evgreen@chromium.org,
	cpratapa@codeaurora.org, subashab@codeaurora.org,
	elder@kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH net-next 5/6] net: ipa: don't stop TX on suspend
Date: Thu, 12 Aug 2021 14:50:34 -0500	[thread overview]
Message-ID: <20210812195035.2816276-6-elder@linaro.org> (raw)
In-Reply-To: <20210812195035.2816276-1-elder@linaro.org>

Currently we stop the modem netdev transmit queue when suspending
the hardware.  For system suspend this ensured we'd never attempt
to transmit while attempting to suspend the modem endpoints.

For runtime suspend, the IPA hardware might get suspended while the
system is operating.  In that case we want an attempt to transmit a
packet to cause the hardware to resume if necessary.  But if we
disable the queue this cannot happen.

So stop disabling the queue on suspend.  In case we end up disabling
it in ipa_start_xmit() (see the previous commit), we still arrange
to start the TX queue on resume.

Signed-off-by: Alex Elder <elder@linaro.org>
---
 drivers/net/ipa/ipa_modem.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ipa/ipa_modem.c b/drivers/net/ipa/ipa_modem.c
index aa1b483d9f7db..b176910d72868 100644
--- a/drivers/net/ipa/ipa_modem.c
+++ b/drivers/net/ipa/ipa_modem.c
@@ -214,8 +214,6 @@ void ipa_modem_suspend(struct net_device *netdev)
 	if (!(netdev->flags & IFF_UP))
 		return;
 
-	netif_stop_queue(netdev);
-
 	ipa_endpoint_suspend_one(ipa->name_map[IPA_ENDPOINT_AP_MODEM_RX]);
 	ipa_endpoint_suspend_one(ipa->name_map[IPA_ENDPOINT_AP_MODEM_TX]);
 }
-- 
2.27.0


  parent reply	other threads:[~2021-08-12 19:50 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-12 19:50 [PATCH net-next 0/6] net: ipa: last things before PM conversion Alex Elder
2021-08-12 19:50 ` [PATCH net-next 1/6] net: ipa: enable wakeup in ipa_power_setup() Alex Elder
2021-08-12 19:50 ` [PATCH net-next 2/6] net: ipa: distinguish system from runtime suspend Alex Elder
2021-08-12 19:50 ` [PATCH net-next 3/6] net: ipa: re-enable transmit in PM WQ context Alex Elder
2021-08-14  0:44   ` Jakub Kicinski
2021-08-14  2:32     ` Alex Elder
2021-08-12 19:50 ` [PATCH net-next 4/6] net: ipa: ensure hardware has power in ipa_start_xmit() Alex Elder
2021-08-14  0:46   ` Jakub Kicinski
2021-08-14  2:25     ` Alex Elder
2021-08-16 14:15       ` Jakub Kicinski
2021-08-16 14:20         ` Alex Elder
2021-08-16 17:56           ` Alex Elder
2021-08-16 20:19             ` Jakub Kicinski
2021-08-12 19:50 ` Alex Elder [this message]
2021-08-12 19:50 ` [PATCH net-next 6/6] net: ipa: don't hold clock reference while netdev open Alex Elder
2021-08-14 13:20 ` [PATCH net-next 0/6] net: ipa: last things before PM conversion patchwork-bot+netdevbpf

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