New upstream version 17.11-rc3

[deb_dpdk.git] / drivers / net / mrvl / mrvl_qos.h

diff --git a/drivers/net/mrvl/mrvl_qos.h b/drivers/net/mrvl/mrvl_qos.h
new file mode 100644 (file)
index 0000000..ae7508c
--- /dev/null
+++ b/drivers/net/mrvl/mrvl_qos.h
@@ -0,0 +1,113 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2017 Marvell International Ltd.
+ *   Copyright(c) 2017 Semihalf.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of the copyright holder nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _MRVL_QOS_H_
+#define _MRVL_QOS_H_
+
+#include <rte_common.h>
+
+#include "mrvl_ethdev.h"
+
+/** Code Points per Traffic Class. Equals max(DSCP, PCP). */
+#define MRVL_CP_PER_TC (64)
+
+/** Value used as "unknown". */
+#define MRVL_UNKNOWN_TC (0xFF)
+
+/* QoS config. */
+struct mrvl_qos_cfg {
+       struct port_cfg {
+               struct {
+                       uint8_t inq[MRVL_PP2_RXQ_MAX];
+                       uint8_t dscp[MRVL_CP_PER_TC];
+                       uint8_t pcp[MRVL_CP_PER_TC];
+                       uint8_t inqs;
+                       uint8_t dscps;
+                       uint8_t pcps;
+               } tc[MRVL_PP2_TC_MAX];
+               struct {
+                       uint8_t weight;
+               } outq[MRVL_PP2_RXQ_MAX];
+               enum pp2_cls_qos_tbl_type mapping_priority;
+               uint16_t inqs;
+               uint16_t outqs;
+               uint8_t default_tc;
+               uint8_t use_global_defaults;
+       } port[RTE_MAX_ETHPORTS];
+};
+
+/** Global QoS configuration. */
+extern struct mrvl_qos_cfg *mrvl_qos_cfg;
+
+/**
+ * Parse QoS configuration - rte_kvargs_process handler.
+ *
+ * Opens configuration file and parses its content.
+ *
+ * @param key Unused.
+ * @param path Path to config file.
+ * @param extra_args Pointer to configuration structure.
+ * @returns 0 in case of success, exits otherwise.
+ */
+int
+mrvl_get_qoscfg(const char *key __rte_unused, const char *path,
+               void *extra_args);
+
+/**
+ * Configure RX Queues in a given port.
+ *
+ * Sets up RX queues, their Traffic Classes and DPDK rxq->(TC,inq) mapping.
+ *
+ * @param priv Port's private data
+ * @param portid DPDK port ID
+ * @param max_queues Maximum number of queues to configure.
+ * @returns 0 in case of success, negative value otherwise.
+ */
+int
+mrvl_configure_rxqs(struct mrvl_priv *priv, uint16_t portid,
+                   uint16_t max_queues);
+
+/**
+ * Start QoS mapping.
+ *
+ * Finalize QoS table configuration and initialize it in SDK. It can be done
+ * only after port is started, so we have a valid ppio reference.
+ *
+ * @param priv Port's private (configuration) data.
+ * @returns 0 in case of success, exits otherwise.
+ */
+int
+mrvl_start_qos_mapping(struct mrvl_priv *priv);
+
+#endif /* _MRVL_QOS_H_ */