Thread (48 messages) 48 messages, 3 authors, 2021-01-10

[PATCH RFC net-next 10/19] net: mvpp2: add spinlock for FW FCA configuration path

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From: <hidden>
Date: 2021-01-10 15:34:54
Also in: lkml
Subsystem: marvell mvpp2 ethernet driver, networking drivers, the rest · Maintainers: Marcin Wojtas, Russell King, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

Revision rfc of 13 in this series.

Revisions (13)
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  13. v13 [diff vs current]
From: Stefan Chulski <redacted>

Spinlock added to MSS shared memory configuration space.

Signed-off-by: Stefan Chulski <redacted>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2.h      | 5 +++++
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 3 +++
 2 files changed, 8 insertions(+)
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
index 3df8f60..4d58af6 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
@@ -1021,6 +1021,11 @@ struct mvpp2 {
 
 	/* CM3 SRAM pool */
 	struct gen_pool *sram_pool;
+
+	bool custom_dma_mask;
+
+	/* Spinlocks for CM3 shared memory configuration */
+	spinlock_t mss_spinlock;
 };
 
 struct mvpp2_pcpu_stats {
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index 4d4e886..bc4b8069 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -7153,6 +7153,9 @@ static int mvpp2_probe(struct platform_device *pdev)
 			priv->hw_version = MVPP23;
 	}
 
+	/* Init mss lock */
+	spin_lock_init(&priv->mss_spinlock);
+
 	/* Initialize network controller */
 	err = mvpp2_init(pdev, priv);
 	if (err < 0) {
-- 
1.9.1
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