dpaa2-eth: Distribute ingress frames based on VLAN prio

Configure static ingress classification based on VLAN PCP field.
If the DPNI doesn't have enough traffic classes to accommodate all
priority levels, the lowest ones end up on TC 0 (default on miss).

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 131 insertions, 0 deletions

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpni.c b/drivers/net/ethernet/freescale/dpaa2/dpni.c
index dd54e6953aeb..78fa325407ca 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpni.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpni.c
@@ -1786,3 +1786,134 @@ int dpni_remove_fs_entry(struct fsl_mc_io *mc_io,
 	/* send command to mc*/
 	return mc_send_command(mc_io, &cmd);
 }
+
+/**
+ * dpni_set_qos_table() - Set QoS mapping table
+ * @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
+ * @cfg:	QoS table configuration
+ *
+ * This function and all QoS-related functions require that
+ *'max_tcs > 1' was set at DPNI creation.
+ *
+ * warning: Before calling this function, call dpkg_prepare_key_cfg() to
+ *			prepare the key_cfg_iova parameter
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpni_set_qos_table(struct fsl_mc_io *mc_io,
+		       u32 cmd_flags,
+		       u16 token,
+		       const struct dpni_qos_tbl_cfg *cfg)
+{
+	struct dpni_cmd_set_qos_table *cmd_params;
+	struct fsl_mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPNI_CMDID_SET_QOS_TBL,
+					  cmd_flags,
+					  token);
+	cmd_params = (struct dpni_cmd_set_qos_table *)cmd.params;
+	cmd_params->default_tc = cfg->default_tc;
+	cmd_params->key_cfg_iova = cpu_to_le64(cfg->key_cfg_iova);
+	dpni_set_field(cmd_params->discard_on_miss, DISCARD_ON_MISS,
+		       cfg->discard_on_miss);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_add_qos_entry() - Add QoS mapping entry (to select a traffic class)
+ * @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
+ * @cfg:	QoS rule to add
+ * @tc_id:	Traffic class selection (0-7)
+ * @index:	Location in the QoS table where to insert the entry.
+ *		Only relevant if MASKING is enabled for QoS classification on
+ *		this DPNI, it is ignored for exact match.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpni_add_qos_entry(struct fsl_mc_io *mc_io,
+		       u32 cmd_flags,
+		       u16 token,
+		       const struct dpni_rule_cfg *cfg,
+		       u8 tc_id,
+		       u16 index)
+{
+	struct dpni_cmd_add_qos_entry *cmd_params;
+	struct fsl_mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPNI_CMDID_ADD_QOS_ENT,
+					  cmd_flags,
+					  token);
+	cmd_params = (struct dpni_cmd_add_qos_entry *)cmd.params;
+	cmd_params->tc_id = tc_id;
+	cmd_params->key_size = cfg->key_size;
+	cmd_params->index = cpu_to_le16(index);
+	cmd_params->key_iova = cpu_to_le64(cfg->key_iova);
+	cmd_params->mask_iova = cpu_to_le64(cfg->mask_iova);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_remove_qos_entry() - Remove QoS mapping entry
+ * @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
+ * @cfg:	QoS rule to remove
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpni_remove_qos_entry(struct fsl_mc_io *mc_io,
+			  u32 cmd_flags,
+			  u16 token,
+			  const struct dpni_rule_cfg *cfg)
+{
+	struct dpni_cmd_remove_qos_entry *cmd_params;
+	struct fsl_mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPNI_CMDID_REMOVE_QOS_ENT,
+					  cmd_flags,
+					  token);
+	cmd_params = (struct dpni_cmd_remove_qos_entry *)cmd.params;
+	cmd_params->key_size = cfg->key_size;
+	cmd_params->key_iova = cpu_to_le64(cfg->key_iova);
+	cmd_params->mask_iova = cpu_to_le64(cfg->mask_iova);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpni_clear_qos_table() - Clear all QoS mapping entries
+ * @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
+ *
+ * Following this function call, all frames are directed to
+ * the default traffic class (0)
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpni_clear_qos_table(struct fsl_mc_io *mc_io,
+			 u32 cmd_flags,
+			 u16 token)
+{
+	struct fsl_mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPNI_CMDID_CLR_QOS_TBL,
+					  cmd_flags,
+					  token);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}