From: Ivan Malov <ivan.ma...@oktetlabs.ru>
Reviewed-by: Andrew Lee <a...@solarflare.com>
Reviewed-by: Robert Stonehouse <rstoneho...@solarflare.com>
Signed-off-by: Ivan Malov <ivan.ma...@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybche...@solarflare.com>
---
drivers/net/sfc/sfc_ethdev.c | 53 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 53 insertions(+)
diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
index c6095ad..79e2761 100644
--- a/drivers/net/sfc/sfc_ethdev.c
+++ b/drivers/net/sfc/sfc_ethdev.c
@@ -706,6 +706,58 @@ sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
SFC_ASSERT(rc > 0);
return -rc;
}
+static void
+sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
+{
+ struct sfc_adapter *sa = dev->data->dev_private;
+ const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
+ int rc;
+
+ sfc_adapter_lock(sa);
+
+ if (sa->state != SFC_ADAPTER_STARTED) {
+ sfc_info(sa, "the port is not started");
+ sfc_info(sa, "the new MAC address will be set on port start");
+
+ goto unlock;
+ }
+
+ if (encp->enc_allow_set_mac_with_installed_filters) {
+ rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
+ if (rc != 0) {
+ sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
+ goto unlock;
+ }
+
+ /*
+ * Changing the MAC address by means of MCDI request
+ * has no effect on received traffic, therefore
+ * we also need to update unicast filters
+ */
+ rc = sfc_set_rx_mode(sa);
+ if (rc != 0)
+ sfc_err(sa, "cannot set filter (rc = %u)", rc);
+ } else {
+ sfc_warn(sa, "cannot set MAC address with filters installed");
+ sfc_warn(sa, "adapter will be restarted to pick the new MAC");
+ sfc_warn(sa, "(some traffic may be dropped)");
+
+ /*
+ * Since setting MAC address with filters installed is not
+ * allowed on the adapter, one needs to simply restart adapter
+ * so that the new MAC address will be taken from an outer
+ * storage and set flawlessly by means of sfc_start() call
+ */
+ sfc_stop(sa);
+ rc = sfc_start(sa);
+ if (rc != 0)
+ sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
+ }
+
+unlock:
+ sfc_adapter_unlock(sa);
+}
+
static const struct eth_dev_ops sfc_eth_dev_ops = {
.dev_configure = sfc_dev_configure,
@@ -730,6 +782,7 @@ static const struct eth_dev_ops sfc_eth_dev_ops = {
.tx_queue_release = sfc_tx_queue_release,
.flow_ctrl_get = sfc_flow_ctrl_get,
.flow_ctrl_set = sfc_flow_ctrl_set,
+ .mac_addr_set = sfc_mac_addr_set,
};
static int
--
2.5.5
