netdev - [PATCH net-next v4 13/14] sfc: update vdpa device MAC address

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Date:   Fri, 7 Apr 2023 13:40:14 +0530
From:   Gautam Dawar <gautam.dawar@....com>
To:     <linux-net-drivers@....com>, <jasowang@...hat.com>,
        Edward Cree <ecree.xilinx@...il.com>,
        Martin Habets <habetsm.xilinx@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        "Jakub Kicinski" <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Richard Cochran <richardcochran@...il.com>,
        <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>
CC:     <eperezma@...hat.com>, <harpreet.anand@....com>,
        <tanuj.kamde@....com>, <koushik.dutta@....com>,
        Gautam Dawar <gautam.dawar@....com>
Subject: [PATCH net-next v4 13/14] sfc: update vdpa device MAC address

As the VF MAC address can now be updated using `devlink port function set`
interface, fetch the vdpa device MAC address from the underlying VF during
vdpa device creation.

Signed-off-by: Gautam Dawar <gautam.dawar@....com>
---
 drivers/net/ethernet/sfc/ef100_vdpa.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/net/ethernet/sfc/ef100_vdpa.c b/drivers/net/ethernet/sfc/ef100_vdpa.c
index f8a273a4d221..1aa7dec6c8b3 100644
--- a/drivers/net/ethernet/sfc/ef100_vdpa.c
+++ b/drivers/net/ethernet/sfc/ef100_vdpa.c
@@ -277,6 +277,18 @@ static int get_net_config(struct ef100_vdpa_nic *vdpa_nic)
 	vdpa_nic->net_config.max_virtqueue_pairs =
 		cpu_to_efx_vdpa16(vdpa_nic, vdpa_nic->max_queue_pairs);
 
+	rc = ef100_get_mac_address(efx, vdpa_nic->mac_address,
+				   efx->client_id, true);
+	if (rc) {
+		dev_err(&vdpa_nic->vdpa_dev.dev,
+			"%s: Get MAC for vf:%u failed:%d\n", __func__,
+			vdpa_nic->vf_index, rc);
+		return rc;
+	}
+
+	if (is_valid_ether_addr(vdpa_nic->mac_address))
+		vdpa_nic->mac_configured = true;
+
 	rc = efx_vdpa_get_mtu(efx, &mtu);
 	if (rc) {
 		dev_err(&vdpa_nic->vdpa_dev.dev,
-- 
2.30.1