[PATCH v2 RFC net-next 10/18] net: mvpp2: add spinlock for FW FCA configuration path

stefanc
2021-01-24T11:58:59Z

Spinlock added to MSS shared memory configuration space.

Signed-off-by: Stefan Chulski <stefanc@marvell.com>
---
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 0f5069f..32c79c50 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -7159,6 +7159,9 @@ 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