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qtnfmac: fix INTx interrupt handling

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In the current implementation INTx interrupt is deasserted after the
control path processing. However this may lead to missed interrupts
from the wireless card. For instance, this may happen as a result
of control path activity, when another interrupt arrives before
INTx is deasserted.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Sergey Matyukevich 2019-01-14 09:39:36 +00:00 committed by Kalle Valo
parent 126824f5ce
commit d1365e794e
1 changed files with 3 additions and 3 deletions
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6
drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c
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@ -559,6 +559,9 @@ static irqreturn_t qtnf_pcie_topaz_interrupt(int irq, void *data)
if (!priv->msi_enabled && !qtnf_topaz_intx_asserted(ts)) if (!priv->msi_enabled && !qtnf_topaz_intx_asserted(ts))
return IRQ_NONE; return IRQ_NONE;
if (!priv->msi_enabled)
qtnf_deassert_intx(ts);
priv->pcie_irq_count++; priv->pcie_irq_count++;
qtnf_shm_ipc_irq_handler(&priv->shm_ipc_ep_in); qtnf_shm_ipc_irq_handler(&priv->shm_ipc_ep_in);
@ -571,9 +574,6 @@ static irqreturn_t qtnf_pcie_topaz_interrupt(int irq, void *data)
tasklet_hi_schedule(&priv->reclaim_tq); tasklet_hi_schedule(&priv->reclaim_tq);
if (!priv->msi_enabled)
qtnf_deassert_intx(ts);
return IRQ_HANDLED; return IRQ_HANDLED;
} }