[PATCH RFC net-next 13/19] net: mvpp2: add RXQ flow control configurations

[stefanc]

From: Stefan Chulski <stef...@marvell.com>

This patch add RXQ flow control configurations.
Patch do not enable flow control itself, flow control
disabled by default.

Signed-off-by: Stefan Chulski <stef...@marvell.com>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2.h      | 3 +++
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h 
b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
index e6bab52..57f7bbc 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
@@ -1234,6 +1234,9 @@ struct mvpp2_port {
        bool rx_hwtstamp;
        enum hwtstamp_tx_types tx_hwtstamp_type;
        struct mvpp2_hwtstamp_queue tx_hwtstamp_queue[2];
+
+       /* Firmware TX flow control */
+       bool tx_fc;
 };
 
 /* The mvpp2_tx_desc and mvpp2_rx_desc structures describe the
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c 
b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index b7ea94f..3b85aec 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -3176,6 +3176,9 @@ static void mvpp2_cleanup_rxqs(struct mvpp2_port *port)
 
        for (queue = 0; queue < port->nrxqs; queue++)
                mvpp2_rxq_deinit(port, port->rxqs[queue]);
+
+       if (port->tx_fc)
+               mvpp2_rxq_disable_fc(port);
 }
 
 /* Init all Rx queues for port */
@@ -3188,6 +3191,10 @@ static int mvpp2_setup_rxqs(struct mvpp2_port *port)
                if (err)
                        goto err_cleanup;
        }
+
+       if (port->tx_fc)
+               mvpp2_rxq_enable_fc(port);
+
        return 0;
 
 err_cleanup:
-- 
1.9.1