net/sfc: support API to negotiate delivery of Rx metadata

[dpdk.git] / drivers / net / sfc / sfc_dp_rx.h

diff --git a/drivers/net/sfc/sfc_dp_rx.h b/drivers/net/sfc/sfc_dp_rx.h
index cb745e6..d037aca 100644 (file)
--- a/drivers/net/sfc/sfc_dp_rx.h
+++ b/drivers/net/sfc/sfc_dp_rx.h
@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: BSD-3-Clause
  *
- * Copyright (c) 2017-2018 Solarflare Communications Inc.
- * All rights reserved.
+ * Copyright(c) 2019-2021 Xilinx, Inc.
+ * Copyright(c) 2017-2019 Solarflare Communications Inc.
  *
  * This software was jointly developed between OKTET Labs (under contract
  * for Solarflare) and Solarflare Communications, Inc.
@@ -11,7 +11,7 @@
 #define _SFC_DP_RX_H
 
 #include <rte_mempool.h>
-#include <rte_ethdev_driver.h>
+#include <ethdev_driver.h>
 
 #include "sfc_dp.h"
 
@@ -28,6 +28,14 @@ struct sfc_dp_rxq {
        struct sfc_dp_queue     dpq;
 };
 
+/** Datapath receive queue descriptor number limitations */
+struct sfc_dp_rx_hw_limits {
+       unsigned int rxq_max_entries;
+       unsigned int rxq_min_entries;
+       unsigned int evq_max_entries;
+       unsigned int evq_min_entries;
+};
+
 /**
  * Datapath receive queue creation information.
  *
@@ -66,6 +74,8 @@ struct sfc_dp_rx_qcreate_info {
        /** DMA-mapped Rx descriptors ring */
        void                    *rxq_hw_ring;
 
+       /** Event queue index in hardware */
+       unsigned int            evq_hw_index;
        /** Associated event queue size */
        unsigned int            evq_entries;
        /** Hardware event ring */
@@ -78,6 +88,8 @@ struct sfc_dp_rx_qcreate_info {
         * doorbell
         */
        volatile void           *mem_bar;
+       /** Function control window offset */
+       efsys_dma_addr_t        fcw_offset;
        /** VI window size shift */
        unsigned int            vi_window_shift;
 };
@@ -114,6 +126,7 @@ typedef int (sfc_dp_rx_pool_ops_supported_t)(const char *pool);
  * @return 0 or positive errno.
  */
 typedef int (sfc_dp_rx_qsize_up_rings_t)(uint16_t nb_rx_desc,
+                                        struct sfc_dp_rx_hw_limits *limits,
                                         struct rte_mempool *mb_pool,
                                         unsigned int *rxq_entries,
                                         unsigned int *evq_entries,
@@ -148,7 +161,8 @@ typedef void (sfc_dp_rx_qdestroy_t)(struct sfc_dp_rxq *dp_rxq);
  * It handovers EvQ to the datapath.
  */
 typedef int (sfc_dp_rx_qstart_t)(struct sfc_dp_rxq *dp_rxq,
-                                unsigned int evq_read_ptr);
+                                unsigned int evq_read_ptr,
+                                const efx_rx_prefix_layout_t *pinfo);
 
 /**
  * Receive queue stop function called before flush.
@@ -184,15 +198,35 @@ typedef unsigned int (sfc_dp_rx_qdesc_npending_t)(struct sfc_dp_rxq *dp_rxq);
 /** Check Rx descriptor status */
 typedef int (sfc_dp_rx_qdesc_status_t)(struct sfc_dp_rxq *dp_rxq,
                                       uint16_t offset);
+/** Enable Rx interrupts */
+typedef int (sfc_dp_rx_intr_enable_t)(struct sfc_dp_rxq *dp_rxq);
+
+/** Disable Rx interrupts */
+typedef int (sfc_dp_rx_intr_disable_t)(struct sfc_dp_rxq *dp_rxq);
+
+/** Get number of pushed Rx buffers */
+typedef unsigned int (sfc_dp_rx_get_pushed_t)(struct sfc_dp_rxq *dp_rxq);
 
 /** Receive datapath definition */
 struct sfc_dp_rx {
        struct sfc_dp                           dp;
 
        unsigned int                            features;
-#define SFC_DP_RX_FEAT_SCATTER                 0x1
-#define SFC_DP_RX_FEAT_MULTI_PROCESS           0x2
-#define SFC_DP_RX_FEAT_TUNNELS                 0x4
+#define SFC_DP_RX_FEAT_MULTI_PROCESS           0x1
+#define SFC_DP_RX_FEAT_FLOW_FLAG               0x2
+#define SFC_DP_RX_FEAT_FLOW_MARK               0x4
+#define SFC_DP_RX_FEAT_INTR                    0x8
+#define SFC_DP_RX_FEAT_STATS                   0x10
+       /**
+        * Rx offload capabilities supported by the datapath on device
+        * level only if HW/FW supports it.
+        */
+       uint64_t                                dev_offload_capa;
+       /**
+        * Rx offload capabilities supported by the datapath per-queue
+        * if HW/FW supports it.
+        */
+       uint64_t                                queue_offload_capa;
        sfc_dp_rx_get_dev_info_t                *get_dev_info;
        sfc_dp_rx_pool_ops_supported_t          *pool_ops_supported;
        sfc_dp_rx_qsize_up_rings_t              *qsize_up_rings;
@@ -206,6 +240,9 @@ struct sfc_dp_rx {
        sfc_dp_rx_supported_ptypes_get_t        *supported_ptypes_get;
        sfc_dp_rx_qdesc_npending_t              *qdesc_npending;
        sfc_dp_rx_qdesc_status_t                *qdesc_status;
+       sfc_dp_rx_intr_enable_t                 *intr_enable;
+       sfc_dp_rx_intr_disable_t                *intr_disable;
+       sfc_dp_rx_get_pushed_t                  *get_pushed;
        eth_rx_burst_t                          pkt_burst;
 };
 
@@ -225,9 +262,19 @@ sfc_dp_find_rx_by_caps(struct sfc_dp_list *head, unsigned int avail_caps)
        return (p == NULL) ? NULL : container_of(p, struct sfc_dp_rx, dp);
 }
 
+static inline uint64_t
+sfc_dp_rx_offload_capa(const struct sfc_dp_rx *dp_rx)
+{
+       return dp_rx->dev_offload_capa | dp_rx->queue_offload_capa;
+}
+
+/** Get Rx datapath ops by the datapath RxQ handle */
+const struct sfc_dp_rx *sfc_dp_rx_by_dp_rxq(const struct sfc_dp_rxq *dp_rxq);
+
 extern struct sfc_dp_rx sfc_efx_rx;
 extern struct sfc_dp_rx sfc_ef10_rx;
 extern struct sfc_dp_rx sfc_ef10_essb_rx;
+extern struct sfc_dp_rx sfc_ef100_rx;
 
 #ifdef __cplusplus
 }