net/sfc: support regioned NIC DMA memory mapping type
[dpdk.git] / drivers / net / sfc / sfc.h
index 83c4430..3337cb5 100644 (file)
@@ -1,30 +1,10 @@
-/*-
- * Copyright (c) 2016 Solarflare Communications Inc.
- * All rights reserved.
+/* SPDX-License-Identifier: BSD-3-Clause
+*
+ * Copyright(c) 2019-2021 Xilinx, Inc.
+ * Copyright(c) 2016-2019 Solarflare Communications Inc.
  *
  * This software was jointly developed between OKTET Labs (under contract
  * for Solarflare) and Solarflare Communications, Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. 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.
- *
- * 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 _SFC_H
 
 #include <stdbool.h>
 
-#include <rte_ethdev.h>
+#include <rte_pci.h>
+#include <rte_bus_pci.h>
+#include <ethdev_driver.h>
 #include <rte_kvargs.h>
 #include <rte_spinlock.h>
+#include <rte_atomic.h>
 
 #include "efx.h"
 
+#include "sfc_efx_mcdi.h"
+#include "sfc_efx.h"
+
+#include "sfc_debug.h"
+#include "sfc_log.h"
+#include "sfc_filter.h"
+#include "sfc_flow_tunnel.h"
+#include "sfc_sriov.h"
+#include "sfc_mae.h"
+#include "sfc_dp.h"
+#include "sfc_sw_stats.h"
+#include "sfc_repr_proxy.h"
+#include "sfc_service.h"
+#include "sfc_ethdev_state.h"
+#include "sfc_nic_dma_dp.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-#define SFC_DEV_TO_PCI(eth_dev) \
-       RTE_DEV_TO_PCI((eth_dev)->device)
-
-/*
- * +---------------+
- * | UNINITIALIZED |<-----------+
- * +---------------+           |
- *     |.eth_dev_init          |.eth_dev_uninit
- *     V                       |
- * +---------------+------------+
- * |  INITIALIZED  |
- * +---------------+<-----------+
- *     |.dev_configure         |
- *     V                       |
- * +---------------+           |
- * |  CONFIGURING  |------------^
- * +---------------+ failed    |
- *     |success                |
- *     |               +---------------+
- *     |               |    CLOSING    |
- *     |               +---------------+
- *     |                       ^
- *     V                       |.dev_close
- * +---------------+------------+
- * |  CONFIGURED   |
- * +---------------+<-----------+
- *     |.dev_start             |
- *     V                       |
- * +---------------+           |
- * |   STARTING    |------------^
- * +---------------+ failed    |
- *     |success                |
- *     |               +---------------+
- *     |               |   STOPPING    |
- *     |               +---------------+
- *     |                       ^
- *     V                       |.dev_stop
- * +---------------+------------+
- * |    STARTED    |
- * +---------------+
- */
-enum sfc_adapter_state {
-       SFC_ADAPTER_UNINITIALIZED = 0,
-       SFC_ADAPTER_INITIALIZED,
-       SFC_ADAPTER_CONFIGURING,
-       SFC_ADAPTER_CONFIGURED,
-       SFC_ADAPTER_CLOSING,
-       SFC_ADAPTER_STARTING,
-       SFC_ADAPTER_STARTED,
-       SFC_ADAPTER_STOPPING,
-
-       SFC_ADAPTER_NSTATES
-};
-
-enum sfc_mcdi_state {
-       SFC_MCDI_UNINITIALIZED = 0,
-       SFC_MCDI_INITIALIZED,
-       SFC_MCDI_BUSY,
-       SFC_MCDI_COMPLETED,
+enum sfc_dev_filter_mode {
+       SFC_DEV_FILTER_MODE_PROMISC = 0,
+       SFC_DEV_FILTER_MODE_ALLMULTI,
 
-       SFC_MCDI_NSTATES
-};
-
-struct sfc_mcdi {
-       rte_spinlock_t                  lock;
-       efsys_mem_t                     mem;
-       enum sfc_mcdi_state             state;
-       efx_mcdi_transport_t            transport;
-       bool                            logging;
+       SFC_DEV_FILTER_NMODES
 };
 
 struct sfc_intr {
        efx_intr_type_t                 type;
        rte_intr_callback_fn            handler;
        boolean_t                       lsc_intr;
+       boolean_t                       rxq_intr;
 };
 
-struct sfc_evq_info;
+struct sfc_rxq;
+struct sfc_txq;
+
 struct sfc_rxq_info;
 struct sfc_txq_info;
+struct sfc_dp_rx;
 
 struct sfc_port {
        unsigned int                    lsc_seq;
 
+       uint32_t                        phy_adv_cap_mask;
+       uint32_t                        phy_adv_cap;
+
        unsigned int                    flow_ctrl;
        boolean_t                       flow_ctrl_autoneg;
        size_t                          pdu;
 
-       rte_spinlock_t                  mac_stats_lock;
+       /*
+        * Flow API isolated mode overrides promisc and allmulti settings;
+        * they won't be applied if isolated mode is active
+        */
+       boolean_t                       promisc;
+       boolean_t                       allmulti;
+
+       struct rte_ether_addr           default_mac_addr;
+
+       unsigned int                    max_mcast_addrs;
+       unsigned int                    nb_mcast_addrs;
+       uint8_t                         *mcast_addrs;
+
        uint64_t                        *mac_stats_buf;
+       unsigned int                    mac_stats_nb_supported;
        efsys_mem_t                     mac_stats_dma_mem;
+       boolean_t                       mac_stats_reset_pending;
+       uint16_t                        mac_stats_update_period_ms;
+       uint32_t                        mac_stats_update_generation;
+       boolean_t                       mac_stats_periodic_dma_supported;
+       uint64_t                        mac_stats_last_request_timestamp;
 
        uint32_t                mac_stats_mask[EFX_MAC_STATS_MASK_NPAGES];
+
+       unsigned int                    mac_stats_by_id[EFX_MAC_NSTATS];
+
+       uint64_t                        ipackets;
+};
+
+struct sfc_rss_hf_rte_to_efx {
+       uint64_t                        rte;
+       efx_rx_hash_type_t              efx;
+};
+
+struct sfc_rss {
+       unsigned int                    channels;
+       efx_rx_scale_context_type_t     context_type;
+       efx_rx_hash_support_t           hash_support;
+       efx_rx_hash_alg_t               hash_alg;
+       unsigned int                    hf_map_nb_entries;
+       struct sfc_rss_hf_rte_to_efx    *hf_map;
+
+       efx_rx_hash_type_t              hash_types;
+       unsigned int                    tbl[EFX_RSS_TBL_SIZE];
+       uint8_t                         key[EFX_RSS_KEY_SIZE];
+
+       uint32_t                        dummy_rss_context;
+};
+
+/* Adapter private data shared by primary and secondary processes */
+struct sfc_adapter_shared {
+       unsigned int                    rxq_count;
+       struct sfc_rxq_info             *rxq_info;
+       unsigned int                    ethdev_rxq_count;
+
+       unsigned int                    txq_count;
+       struct sfc_txq_info             *txq_info;
+       unsigned int                    ethdev_txq_count;
+
+       struct sfc_rss                  rss;
+
+       boolean_t                       isolated;
+       uint32_t                        tunnel_encaps;
+
+       char                            log_prefix[SFC_LOG_PREFIX_MAX];
+       struct rte_pci_addr             pci_addr;
+       uint16_t                        port_id;
+
+       char                            *dp_rx_name;
+       char                            *dp_tx_name;
+
+       bool                            counters_rxq_allocated;
+       unsigned int                    nb_repr_rxq;
+       unsigned int                    nb_repr_txq;
+
+       struct sfc_nic_dma_info         nic_dma_info;
+};
+
+/* Adapter process private data */
+struct sfc_adapter_priv {
+       struct sfc_adapter_shared       *shared;
+       const struct sfc_dp_rx          *dp_rx;
+       const struct sfc_dp_tx          *dp_tx;
+       uint32_t                        logtype_main;
+};
+
+static inline struct sfc_adapter_priv *
+sfc_adapter_priv_by_eth_dev(struct rte_eth_dev *eth_dev)
+{
+       struct sfc_adapter_priv *sap = eth_dev->process_private;
+
+       SFC_ASSERT(sap != NULL);
+       return sap;
+}
+
+/* RxQ dedicated for counters (counter only RxQ) data */
+struct sfc_counter_rxq {
+       unsigned int                    state;
+#define SFC_COUNTER_RXQ_ATTACHED               0x1
+#define SFC_COUNTER_RXQ_INITIALIZED            0x2
+       sfc_sw_index_t                  sw_index;
+       struct rte_mempool              *mp;
+};
+
+struct sfc_sw_stat_data {
+       const struct sfc_sw_stat_descr *descr;
+       /* Cache fragment */
+       uint64_t                        *cache;
+};
+
+struct sfc_sw_stats {
+       /* Number extended statistics provided by SW stats */
+       unsigned int                    xstats_count;
+       /* Supported SW statistics */
+       struct sfc_sw_stat_data         *supp;
+       unsigned int                    supp_count;
+
+       /* Cache for all supported SW statistics */
+       uint64_t                        *cache;
+       unsigned int                    cache_count;
+
+       uint64_t                        *reset_vals;
+       /* Location of per-queue reset values for packets/bytes in reset_vals */
+       uint64_t                        *reset_rx_pkts;
+       uint64_t                        *reset_rx_bytes;
+       uint64_t                        *reset_tx_pkts;
+       uint64_t                        *reset_tx_bytes;
+
+       rte_spinlock_t                  queues_bitmap_lock;
+       void                            *queues_bitmap_mem;
+       struct rte_bitmap               *queues_bitmap;
 };
 
 /* Adapter private data */
 struct sfc_adapter {
+       /*
+        * It must be the first field of the sfc_adapter structure since
+        * sfc_adapter is the primary process private data (i.e.  process
+        * private data plus additional primary process specific data).
+        */
+       struct sfc_adapter_priv         priv;
+
        /*
         * PMD setup and configuration is not thread safe. Since it is not
         * performance sensitive, it is better to guarantee thread-safety
@@ -146,39 +221,111 @@ struct sfc_adapter {
         * change its state should acquire the lock.
         */
        rte_spinlock_t                  lock;
-       enum sfc_adapter_state          state;
+       enum sfc_ethdev_state           state;
        struct rte_eth_dev              *eth_dev;
        struct rte_kvargs               *kvargs;
-       bool                            debug_init;
        int                             socket_id;
        efsys_bar_t                     mem_bar;
+       /* Function control window offset */
+       efsys_dma_addr_t                fcw_offset;
        efx_family_t                    family;
        efx_nic_t                       *nic;
        rte_spinlock_t                  nic_lock;
+       rte_atomic32_t                  restart_required;
 
-       struct sfc_mcdi                 mcdi;
+       struct sfc_efx_mcdi             mcdi;
+       struct sfc_sriov                sriov;
        struct sfc_intr                 intr;
        struct sfc_port                 port;
+       struct sfc_sw_stats             sw_stats;
+       /* Registry of tunnel offload contexts */
+       struct sfc_flow_tunnel          flow_tunnels[SFC_FT_MAX_NTUNNELS];
+       struct sfc_filter               filter;
+       struct sfc_mae                  mae;
+       struct sfc_repr_proxy           repr_proxy;
+
+       struct sfc_flow_list            flow_list;
 
        unsigned int                    rxq_max;
        unsigned int                    txq_max;
 
+       unsigned int                    rxq_max_entries;
+       unsigned int                    rxq_min_entries;
+
        unsigned int                    txq_max_entries;
+       unsigned int                    txq_min_entries;
+
+       unsigned int                    evq_max_entries;
+       unsigned int                    evq_min_entries;
 
        uint32_t                        evq_flags;
        unsigned int                    evq_count;
-       struct sfc_evq_info             *evq_info;
 
        unsigned int                    mgmt_evq_index;
+       /*
+        * The lock is used to serialise management event queue polling
+        * which can be done from different context. Also the lock
+        * guarantees that mgmt_evq_running is preserved while the lock
+        * is held. It is used to serialise polling and start/stop
+        * operations.
+        *
+        * Locks which may be held when the lock is acquired:
+        *  - adapter lock, when:
+        *    - device start/stop to change mgmt_evq_running
+        *    - any control operations in client side MCDI proxy handling to
+        *      poll management event queue waiting for proxy response
+        *  - MCDI lock, when:
+        *    - any control operations in client side MCDI proxy handling to
+        *      poll management event queue waiting for proxy response
+        *
+        * Locks which are acquired with the lock held:
+        *  - nic_lock, when:
+        *    - MC event processing on management event queue polling
+        *      (e.g. MC REBOOT or BADASSERT events)
+        */
        rte_spinlock_t                  mgmt_evq_lock;
+       bool                            mgmt_evq_running;
+       struct sfc_evq                  *mgmt_evq;
 
-       unsigned int                    rxq_count;
-       struct sfc_rxq_info             *rxq_info;
+       struct sfc_counter_rxq          counter_rxq;
 
-       unsigned int                    txq_count;
-       struct sfc_txq_info             *txq_info;
+       struct sfc_rxq                  *rxq_ctrl;
+       struct sfc_txq                  *txq_ctrl;
+
+       boolean_t                       tso;
+       boolean_t                       tso_encap;
+
+       uint64_t                        negotiated_rx_metadata;
+
+       uint32_t                        rxd_wait_timeout_ns;
+
+       bool                            switchdev;
 };
 
+static inline struct sfc_adapter_shared *
+sfc_adapter_shared_by_eth_dev(struct rte_eth_dev *eth_dev)
+{
+       struct sfc_adapter_shared *sas = eth_dev->data->dev_private;
+
+       return sas;
+}
+
+static inline struct sfc_adapter *
+sfc_adapter_by_eth_dev(struct rte_eth_dev *eth_dev)
+{
+       struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(eth_dev);
+
+       SFC_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
+
+       return container_of(sap, struct sfc_adapter, priv);
+}
+
+static inline struct sfc_adapter_shared *
+sfc_sa2shared(struct sfc_adapter *sa)
+{
+       return sa->priv.shared;
+}
+
 /*
  * Add wrapper functions to acquire/release lock to be able to remove or
  * change the lock in one place.
@@ -220,15 +367,53 @@ sfc_adapter_lock_fini(__rte_unused struct sfc_adapter *sa)
        /* Just for symmetry of the API */
 }
 
-int sfc_dma_alloc(const struct sfc_adapter *sa, const char *name, uint16_t id,
-                 size_t len, int socket_id, efsys_mem_t *esmp);
+static inline unsigned int
+sfc_nb_counter_rxq(const struct sfc_adapter_shared *sas)
+{
+       return sas->counters_rxq_allocated ? 1 : 0;
+}
+
+bool sfc_repr_supported(const struct sfc_adapter *sa);
+bool sfc_repr_available(const struct sfc_adapter_shared *sas);
+
+static inline unsigned int
+sfc_repr_nb_rxq(const struct sfc_adapter_shared *sas)
+{
+       return sas->nb_repr_rxq;
+}
+
+static inline unsigned int
+sfc_repr_nb_txq(const struct sfc_adapter_shared *sas)
+{
+       return sas->nb_repr_txq;
+}
+
+/** Get the number of milliseconds since boot from the default timer */
+static inline uint64_t
+sfc_get_system_msecs(void)
+{
+       return rte_get_timer_cycles() * MS_PER_S / rte_get_timer_hz();
+}
+
+int sfc_dma_alloc(struct sfc_adapter *sa, const char *name, uint16_t id,
+                 efx_nic_dma_addr_type_t addr_type, size_t len, int socket_id,
+                 efsys_mem_t *esmp);
 void sfc_dma_free(const struct sfc_adapter *sa, efsys_mem_t *esmp);
 
+uint32_t sfc_register_logtype(const struct rte_pci_addr *pci_addr,
+                             const char *lt_prefix_str,
+                             uint32_t ll_default);
+
+int sfc_probe(struct sfc_adapter *sa);
+void sfc_unprobe(struct sfc_adapter *sa);
 int sfc_attach(struct sfc_adapter *sa);
+void sfc_pre_detach(struct sfc_adapter *sa);
 void sfc_detach(struct sfc_adapter *sa);
 int sfc_start(struct sfc_adapter *sa);
 void sfc_stop(struct sfc_adapter *sa);
 
+void sfc_schedule_restart(struct sfc_adapter *sa);
+
 int sfc_mcdi_init(struct sfc_adapter *sa);
 void sfc_mcdi_fini(struct sfc_adapter *sa);
 
@@ -237,19 +422,36 @@ void sfc_close(struct sfc_adapter *sa);
 
 int sfc_intr_attach(struct sfc_adapter *sa);
 void sfc_intr_detach(struct sfc_adapter *sa);
-int sfc_intr_init(struct sfc_adapter *sa);
-void sfc_intr_fini(struct sfc_adapter *sa);
+int sfc_intr_configure(struct sfc_adapter *sa);
+void sfc_intr_close(struct sfc_adapter *sa);
 int sfc_intr_start(struct sfc_adapter *sa);
 void sfc_intr_stop(struct sfc_adapter *sa);
 
-int sfc_port_init(struct sfc_adapter *sa);
-void sfc_port_fini(struct sfc_adapter *sa);
+int sfc_port_attach(struct sfc_adapter *sa);
+void sfc_port_detach(struct sfc_adapter *sa);
+int sfc_port_configure(struct sfc_adapter *sa);
+void sfc_port_close(struct sfc_adapter *sa);
 int sfc_port_start(struct sfc_adapter *sa);
 void sfc_port_stop(struct sfc_adapter *sa);
 void sfc_port_link_mode_to_info(efx_link_mode_t link_mode,
                                struct rte_eth_link *link_info);
-int sfc_port_update_mac_stats(struct sfc_adapter *sa);
-
+int sfc_port_update_mac_stats(struct sfc_adapter *sa, boolean_t manual_update);
+int sfc_port_get_mac_stats(struct sfc_adapter *sa, struct rte_eth_xstat *xstats,
+                          unsigned int xstats_count, unsigned int *nb_written);
+int sfc_port_get_mac_stats_by_id(struct sfc_adapter *sa, const uint64_t *ids,
+                                uint64_t *values, unsigned int n);
+int sfc_port_reset_mac_stats(struct sfc_adapter *sa);
+int sfc_set_rx_mode(struct sfc_adapter *sa);
+int sfc_set_rx_mode_unchecked(struct sfc_adapter *sa);
+
+struct sfc_hw_switch_id;
+
+int sfc_hw_switch_id_init(struct sfc_adapter *sa,
+                         struct sfc_hw_switch_id **idp);
+void sfc_hw_switch_id_fini(struct sfc_adapter *sa,
+                          struct sfc_hw_switch_id *idp);
+bool sfc_hw_switch_ids_equal(const struct sfc_hw_switch_id *left,
+                            const struct sfc_hw_switch_id *right);
 
 #ifdef __cplusplus
 }