dpaa2-eth: add support for Rx VLAN filtering

Declare Rx VLAN filtering as supported and user-changeable only when
there are VLAN filtering entries available on the DPNI object. Even
then, rx-vlan-filtering is by default disabled.
Also, populate the .ndo_vlan_rx_add_vid() and .ndo_vlan_rx_kill_vid()
callbacks for adding and removing a specific VLAN from the VLAN table.

Signed-off-by: Ionut-robert Aron <ionut-robert.aron@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Link: https://lore.kernel.org/r/20210111170725.1818218-1-ciorneiioana@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 93 insertions, 0 deletions

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpni.c b/drivers/net/ethernet/freescale/dpaa2/dpni.c
index 6ea7db66a632..aa429c17c343 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpni.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpni.c
@@ -1225,6 +1225,99 @@ int dpni_get_port_mac_addr(struct fsl_mc_io *mc_io,
 }
 
 /**
+ * dpni_enable_vlan_filter() - Enable/disable VLAN filtering mode
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPNI object
+ * @en:		Set to '1' to enable; '0' to disable
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpni_enable_vlan_filter(struct fsl_mc_io *mc_io,
+			    u32 cmd_flags,
+			    u16 token,
+			    u32 en)
+{
+	struct dpni_cmd_enable_vlan_filter *cmd_params;
+	struct fsl_mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPNI_CMDID_ENABLE_VLAN_FILTER,
+					  cmd_flags,
+					  token);
+	cmd_params = (struct dpni_cmd_enable_vlan_filter *)cmd.params;
+	dpni_set_field(cmd_params->en, ENABLE, en);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_add_vlan_id() - Add VLAN ID filter
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPNI object
+ * @vlan_id:	VLAN ID to add
+ * @flags:   0 - tc_id and flow_id will be ignored.
+ * Pkt with this vlan_id will be passed to the next
+ * classification stages
+ * DPNI_VLAN_SET_QUEUE_ACTION
+ * Pkt with this vlan_id will be forward directly to
+ * queue defined by the tc_id and flow_id
+ *
+ * @tc_id: Traffic class selection (0-7)
+ * @flow_id: Selects the specific queue out of the set allocated for the
+ *           same as tc_id. Value must be in range 0 to NUM_QUEUES - 1
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpni_add_vlan_id(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
+		     u16 vlan_id, u8 flags, u8 tc_id, u8 flow_id)
+{
+	struct dpni_cmd_vlan_id *cmd_params;
+	struct fsl_mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPNI_CMDID_ADD_VLAN_ID,
+					  cmd_flags,
+					  token);
+	cmd_params = (struct dpni_cmd_vlan_id *)cmd.params;
+	cmd_params->flags = flags;
+	cmd_params->tc_id = tc_id;
+	cmd_params->flow_id =  flow_id;
+	cmd_params->vlan_id = cpu_to_le16(vlan_id);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_remove_vlan_id() - Remove VLAN ID filter
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token:	Token of DPNI object
+ * @vlan_id:	VLAN ID to remove
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpni_remove_vlan_id(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
+			u16 vlan_id)
+{
+	struct dpni_cmd_vlan_id *cmd_params;
+	struct fsl_mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPNI_CMDID_REMOVE_VLAN_ID,
+					  cmd_flags,
+					  token);
+	cmd_params = (struct dpni_cmd_vlan_id *)cmd.params;
+	cmd_params->vlan_id = cpu_to_le16(vlan_id);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
  * dpni_add_mac_addr() - Add MAC address filter
  * @mc_io:	Pointer to MC portal's I/O object
  * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'