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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 3/8] pds_core: Use struct pdsc for the pdsc_adminq_isr private data
Date: Thu, 4 Jan 2024 09:12:16 -0800	[thread overview]
Message-ID: <20240104171221.31399-4-brett.creeley@amd.com> (raw)
In-Reply-To: <20240104171221.31399-1-brett.creeley@amd.com>

The initial design for the adminq interrupt was done based
on client drivers having their own adminq and adminq
interrupt. So, each client driver's adminq isr would use
their specific adminqcq for the private data struct. For the
time being the design has changed to only use a single
adminq for all clients. So, instead use the struct pdsc for
the private data to simplify things a bit.

This also has the benefit of not dereferencing the adminqcq
to access the pdsc struct when the PDSC_S_STOPPING_DRIVER bit
is set and the adminqcq has actually been cleared/freed.

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 | 5 +++--
 drivers/net/ethernet/amd/pds_core/core.c   | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/amd/pds_core/adminq.c b/drivers/net/ethernet/amd/pds_core/adminq.c
index 5beadabc2136..68be5ea251fc 100644
--- a/drivers/net/ethernet/amd/pds_core/adminq.c
+++ b/drivers/net/ethernet/amd/pds_core/adminq.c
@@ -135,8 +135,8 @@ void pdsc_work_thread(struct work_struct *work)
 
 irqreturn_t pdsc_adminq_isr(int irq, void *data)
 {
-	struct pdsc_qcq *qcq = data;
-	struct pdsc *pdsc = qcq->pdsc;
+	struct pdsc *pdsc = data;
+	struct pdsc_qcq *qcq;
 
 	/* Don't process AdminQ when shutting down */
 	if (pdsc->state & BIT_ULL(PDSC_S_STOPPING_DRIVER)) {
@@ -145,6 +145,7 @@ irqreturn_t pdsc_adminq_isr(int irq, void *data)
 		return IRQ_HANDLED;
 	}
 
+	qcq = &pdsc->adminqcq;
 	queue_work(pdsc->wq, &qcq->work);
 	pds_core_intr_mask(&pdsc->intr_ctrl[qcq->intx], PDS_CORE_INTR_MASK_CLEAR);
 
diff --git a/drivers/net/ethernet/amd/pds_core/core.c b/drivers/net/ethernet/amd/pds_core/core.c
index b582729331eb..0356e56a6e99 100644
--- a/drivers/net/ethernet/amd/pds_core/core.c
+++ b/drivers/net/ethernet/amd/pds_core/core.c
@@ -125,7 +125,7 @@ static int pdsc_qcq_intr_alloc(struct pdsc *pdsc, struct pdsc_qcq *qcq)
 
 	snprintf(name, sizeof(name), "%s-%d-%s",
 		 PDS_CORE_DRV_NAME, pdsc->pdev->bus->number, qcq->q.name);
-	index = pdsc_intr_alloc(pdsc, name, pdsc_adminq_isr, qcq);
+	index = pdsc_intr_alloc(pdsc, name, pdsc_adminq_isr, pdsc);
 	if (index < 0)
 		return index;
 	qcq->intx = index;
-- 
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 ` Brett Creeley [this message]
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 ` [PATCH net-next 7/8] pds_core: Unmask adminq interrupt in work thread Brett Creeley
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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