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From: Brett Creeley <brett.creeley@amd.com>
To: <davem@davemloft.net>, <edumazet@google.com>, <kuba@kernel.org>,
	<pabeni@redhat.com>, <netdev@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Cc: <shannon.nelson@amd.com>, <brett.creeley@amd.com>
Subject: [PATCH net-next 7/8] pds_core: Unmask adminq interrupt in work thread
Date: Thu, 4 Jan 2024 09:12:20 -0800	[thread overview]
Message-ID: <20240104171221.31399-8-brett.creeley@amd.com> (raw)
In-Reply-To: <20240104171221.31399-1-brett.creeley@amd.com>

Unmasking the interrupt during the pdsc_adminq_isr
is a bit early and could cause unnecessary interrupts.
Instead always unmask after processing the adminq
and notifyq in pdsc_work_thread()->pdsc_process_adminq().
Also, since we are always unmasking, there's no need
for the local credits variable in pdsc_process_adminq().

Signed-off-by: Brett Creeley <brett.creeley@amd.com>
Reviewed-by: Shannon Nelson <shannon.nelson@amd.com>
---
 drivers/net/ethernet/amd/pds_core/adminq.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/amd/pds_core/adminq.c b/drivers/net/ethernet/amd/pds_core/adminq.c
index ea773cfa0af6..c83a0a80d533 100644
--- a/drivers/net/ethernet/amd/pds_core/adminq.c
+++ b/drivers/net/ethernet/amd/pds_core/adminq.c
@@ -82,7 +82,6 @@ void pdsc_process_adminq(struct pdsc_qcq *qcq)
 	unsigned long irqflags;
 	int nq_work = 0;
 	int aq_work = 0;
-	int credits;
 
 	/* Don't process AdminQ when it's not up */
 	if (!pdsc_adminq_inc_if_up(pdsc)) {
@@ -128,11 +127,9 @@ void pdsc_process_adminq(struct pdsc_qcq *qcq)
 
 credits:
 	/* Return the interrupt credits, one for each completion */
-	credits = nq_work + aq_work;
-	if (credits)
-		pds_core_intr_credits(&pdsc->intr_ctrl[qcq->intx],
-				      credits,
-				      PDS_CORE_INTR_CRED_REARM);
+	pds_core_intr_credits(&pdsc->intr_ctrl[qcq->intx],
+			      nq_work + aq_work,
+			      PDS_CORE_INTR_CRED_REARM);
 	refcount_dec(&pdsc->adminq_refcnt);
 }
 
@@ -157,7 +154,6 @@ irqreturn_t pdsc_adminq_isr(int irq, void *data)
 
 	qcq = &pdsc->adminqcq;
 	queue_work(pdsc->wq, &qcq->work);
-	pds_core_intr_mask(&pdsc->intr_ctrl[qcq->intx], PDS_CORE_INTR_MASK_CLEAR);
 	refcount_dec(&pdsc->adminq_refcnt);
 
 	return IRQ_HANDLED;
-- 
2.17.1


  parent reply	other threads:[~2024-01-04 17:12 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-04 17:12 [PATCH net-next 0/8] pds_core: Various improvements and AQ race condition cleanup Brett Creeley
2024-01-04 17:12 ` [PATCH net-next 1/8] pds_core: Prevent health thread from running during reset/remove Brett Creeley
2024-01-04 17:12 ` [PATCH net-next 2/8] pds_core: Cancel AQ work on teardown Brett Creeley
2024-01-04 17:12 ` [PATCH net-next 3/8] pds_core: Use struct pdsc for the pdsc_adminq_isr private data Brett Creeley
2024-01-04 17:12 ` [PATCH net-next 4/8] pds_core: Prevent race issues involving the adminq Brett Creeley
2024-01-04 19:16   ` Simon Horman
2024-01-04 19:24     ` Brett Creeley
2024-01-06  1:50   ` kernel test robot
2024-01-07  1:28   ` kernel test robot
2024-01-04 17:12 ` [PATCH net-next 5/8] pds_core: Clear BARs on reset Brett Creeley
2024-01-04 17:12 ` [PATCH net-next 6/8] pds_core: Don't assign interrupt index/bound_intr to notifyq Brett Creeley
2024-01-04 17:12 ` Brett Creeley [this message]
2024-01-04 17:12 ` [PATCH net-next 8/8] pds_core: Fix up some RCT issues Brett Creeley
2024-01-05  7:59 ` [PATCH net-next 0/8] pds_core: Various improvements and AQ race condition cleanup Przemek Kitszel

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