316 lines
7.7 KiB
C
316 lines
7.7 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) 2016-2017 Solarflare Communications Inc.
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* All rights reserved.
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*
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* This software was jointly developed between OKTET Labs (under contract
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* for Solarflare) and Solarflare Communications, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SFC_H
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#define _SFC_H
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#include <stdbool.h>
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#include <rte_ethdev.h>
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#include <rte_kvargs.h>
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#include <rte_spinlock.h>
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#include "efx.h"
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#include "sfc_filter.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define SFC_DEV_TO_PCI(eth_dev) \
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RTE_DEV_TO_PCI((eth_dev)->device)
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#if EFSYS_OPT_RX_SCALE
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/** RSS key length (bytes) */
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#define SFC_RSS_KEY_SIZE 40
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/** RSS hash offloads mask */
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#define SFC_RSS_OFFLOADS (ETH_RSS_IP | ETH_RSS_TCP)
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#endif
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/*
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* +---------------+
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* | UNINITIALIZED |<-----------+
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* +---------------+ |
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* |.eth_dev_init |.eth_dev_uninit
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* V |
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* +---------------+------------+
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* | INITIALIZED |
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* +---------------+<-----------+
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* |.dev_configure |
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* V |
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* +---------------+ |
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* | CONFIGURING |------------^
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* +---------------+ failed |
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* |success |
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* | +---------------+
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* | | CLOSING |
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* | +---------------+
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* | ^
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* V |.dev_close
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* +---------------+------------+
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* | CONFIGURED |
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* +---------------+<-----------+
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* |.dev_start |
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* V |
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* +---------------+ |
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* | STARTING |------------^
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* +---------------+ failed |
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* |success |
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* | +---------------+
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* | | STOPPING |
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* | +---------------+
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* | ^
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* V |.dev_stop
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* +---------------+------------+
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* | STARTED |
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* +---------------+
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*/
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enum sfc_adapter_state {
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SFC_ADAPTER_UNINITIALIZED = 0,
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SFC_ADAPTER_INITIALIZED,
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SFC_ADAPTER_CONFIGURING,
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SFC_ADAPTER_CONFIGURED,
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SFC_ADAPTER_CLOSING,
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SFC_ADAPTER_STARTING,
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SFC_ADAPTER_STARTED,
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SFC_ADAPTER_STOPPING,
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SFC_ADAPTER_NSTATES
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};
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enum sfc_dev_filter_mode {
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SFC_DEV_FILTER_MODE_PROMISC = 0,
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SFC_DEV_FILTER_MODE_ALLMULTI,
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SFC_DEV_FILTER_NMODES
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};
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enum sfc_mcdi_state {
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SFC_MCDI_UNINITIALIZED = 0,
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SFC_MCDI_INITIALIZED,
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SFC_MCDI_BUSY,
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SFC_MCDI_COMPLETED,
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SFC_MCDI_NSTATES
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};
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struct sfc_mcdi {
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rte_spinlock_t lock;
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efsys_mem_t mem;
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enum sfc_mcdi_state state;
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efx_mcdi_transport_t transport;
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bool logging;
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uint32_t proxy_handle;
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efx_rc_t proxy_result;
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};
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struct sfc_intr {
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efx_intr_type_t type;
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rte_intr_callback_fn handler;
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boolean_t lsc_intr;
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};
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struct sfc_evq_info;
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struct sfc_rxq_info;
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struct sfc_txq_info;
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struct sfc_port {
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unsigned int lsc_seq;
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uint32_t phy_adv_cap_mask;
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uint32_t phy_adv_cap;
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unsigned int flow_ctrl;
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boolean_t flow_ctrl_autoneg;
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size_t pdu;
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boolean_t promisc;
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boolean_t allmulti;
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unsigned int max_mcast_addrs;
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unsigned int nb_mcast_addrs;
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uint8_t *mcast_addrs;
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rte_spinlock_t mac_stats_lock;
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uint64_t *mac_stats_buf;
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efsys_mem_t mac_stats_dma_mem;
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boolean_t mac_stats_reset_pending;
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uint16_t mac_stats_update_period_ms;
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uint32_t mac_stats_update_generation;
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boolean_t mac_stats_periodic_dma_supported;
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uint64_t mac_stats_last_request_timestamp;
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uint32_t mac_stats_mask[EFX_MAC_STATS_MASK_NPAGES];
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};
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/* Adapter private data */
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struct sfc_adapter {
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/*
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* PMD setup and configuration is not thread safe. Since it is not
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* performance sensitive, it is better to guarantee thread-safety
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* and add device level lock. Adapter control operations which
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* change its state should acquire the lock.
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*/
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rte_spinlock_t lock;
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enum sfc_adapter_state state;
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struct rte_eth_dev *eth_dev;
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struct rte_kvargs *kvargs;
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bool debug_init;
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int socket_id;
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efsys_bar_t mem_bar;
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efx_family_t family;
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efx_nic_t *nic;
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rte_spinlock_t nic_lock;
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struct sfc_mcdi mcdi;
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struct sfc_intr intr;
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struct sfc_port port;
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struct sfc_filter filter;
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unsigned int rxq_max;
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unsigned int txq_max;
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unsigned int txq_max_entries;
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uint32_t evq_flags;
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unsigned int evq_count;
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struct sfc_evq_info *evq_info;
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unsigned int mgmt_evq_index;
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rte_spinlock_t mgmt_evq_lock;
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unsigned int rxq_count;
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struct sfc_rxq_info *rxq_info;
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unsigned int txq_count;
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struct sfc_txq_info *txq_info;
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boolean_t tso;
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unsigned int rss_channels;
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#if EFSYS_OPT_RX_SCALE
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efx_rx_scale_support_t rss_support;
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efx_rx_hash_support_t hash_support;
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efx_rx_hash_type_t rss_hash_types;
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unsigned int rss_tbl[EFX_RSS_TBL_SIZE];
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uint8_t rss_key[SFC_RSS_KEY_SIZE];
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#endif
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};
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/*
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* Add wrapper functions to acquire/release lock to be able to remove or
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* change the lock in one place.
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*/
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static inline void
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sfc_adapter_lock_init(struct sfc_adapter *sa)
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{
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rte_spinlock_init(&sa->lock);
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}
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static inline int
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sfc_adapter_is_locked(struct sfc_adapter *sa)
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{
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return rte_spinlock_is_locked(&sa->lock);
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}
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static inline void
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sfc_adapter_lock(struct sfc_adapter *sa)
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{
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rte_spinlock_lock(&sa->lock);
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}
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static inline int
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sfc_adapter_trylock(struct sfc_adapter *sa)
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{
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return rte_spinlock_trylock(&sa->lock);
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}
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static inline void
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sfc_adapter_unlock(struct sfc_adapter *sa)
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{
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rte_spinlock_unlock(&sa->lock);
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}
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static inline void
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sfc_adapter_lock_fini(__rte_unused struct sfc_adapter *sa)
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{
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/* Just for symmetry of the API */
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}
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/** Get the number of milliseconds since boot from the default timer */
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static inline uint64_t
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sfc_get_system_msecs(void)
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{
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return rte_get_timer_cycles() * MS_PER_S / rte_get_timer_hz();
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}
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int sfc_dma_alloc(const struct sfc_adapter *sa, const char *name, uint16_t id,
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size_t len, int socket_id, efsys_mem_t *esmp);
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void sfc_dma_free(const struct sfc_adapter *sa, efsys_mem_t *esmp);
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int sfc_attach(struct sfc_adapter *sa);
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void sfc_detach(struct sfc_adapter *sa);
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int sfc_start(struct sfc_adapter *sa);
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void sfc_stop(struct sfc_adapter *sa);
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int sfc_mcdi_init(struct sfc_adapter *sa);
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void sfc_mcdi_fini(struct sfc_adapter *sa);
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int sfc_configure(struct sfc_adapter *sa);
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void sfc_close(struct sfc_adapter *sa);
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int sfc_intr_attach(struct sfc_adapter *sa);
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void sfc_intr_detach(struct sfc_adapter *sa);
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int sfc_intr_init(struct sfc_adapter *sa);
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void sfc_intr_fini(struct sfc_adapter *sa);
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int sfc_intr_start(struct sfc_adapter *sa);
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void sfc_intr_stop(struct sfc_adapter *sa);
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int sfc_port_init(struct sfc_adapter *sa);
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void sfc_port_fini(struct sfc_adapter *sa);
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int sfc_port_start(struct sfc_adapter *sa);
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void sfc_port_stop(struct sfc_adapter *sa);
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void sfc_port_link_mode_to_info(efx_link_mode_t link_mode,
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struct rte_eth_link *link_info);
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int sfc_port_update_mac_stats(struct sfc_adapter *sa);
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int sfc_port_reset_mac_stats(struct sfc_adapter *sa);
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int sfc_set_rx_mode(struct sfc_adapter *sa);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SFC_H */
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