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numam-dpdk/drivers/net/sfc/sfc.h
Georgiy Levashov 4279b54e28 net/sfc: support Rx interrupts for efx datapath 
When Rx interrupts are disabled, we simply disable rearm when
the interrupt fires the next time. So, the next packet will
trigger interrupt (if it is not happened yet after previous Rx
burst processing).

Signed-off-by: Georgiy Levashov <georgiy.levashov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2019-06-14 00:01:00 +09:00

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9.8 KiB
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/* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2016-2018 Solarflare Communications Inc.
* All rights reserved.
*
* This software was jointly developed between OKTET Labs (under contract
* for Solarflare) and Solarflare Communications, Inc.
*/
#ifndef _SFC_H
#define _SFC_H
#include <stdbool.h>
#include <rte_pci.h>
#include <rte_bus_pci.h>
#include <rte_ethdev_driver.h>
#include <rte_kvargs.h>
#include <rte_spinlock.h>
#include <rte_atomic.h>
#include "efx.h"
#include "sfc_filter.h"
#ifdef __cplusplus
extern "C" {
#endif
/*
* +---------------+
* | UNINITIALIZED |<-----------+
* +---------------+ |
* |.eth_dev_init |.eth_dev_uninit
* V |
* +---------------+------------+
* | INITIALIZED |
* +---------------+<-----------<---------------+
* |.dev_configure | |
* V |failed |
* +---------------+------------+ |
* | CONFIGURING | |
* +---------------+----+ |
* |success | |
* | | +---------------+
* | | | CLOSING |
* | | +---------------+
* | | ^
* V |.dev_configure |
* +---------------+----+ |.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_dev_filter_mode {
SFC_DEV_FILTER_MODE_PROMISC = 0,
SFC_DEV_FILTER_MODE_ALLMULTI,
SFC_DEV_FILTER_NMODES
};
enum sfc_mcdi_state {
SFC_MCDI_UNINITIALIZED = 0,
SFC_MCDI_INITIALIZED,
SFC_MCDI_BUSY,
SFC_MCDI_COMPLETED,
SFC_MCDI_NSTATES
};
struct sfc_mcdi {
rte_spinlock_t lock;
efsys_mem_t mem;
enum sfc_mcdi_state state;
efx_mcdi_transport_t transport;
uint32_t logtype;
uint32_t proxy_handle;
efx_rc_t proxy_result;
};
struct sfc_intr {
efx_intr_type_t type;
rte_intr_callback_fn handler;
boolean_t lsc_intr;
boolean_t rxq_intr;
};
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;
/*
* 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;
rte_spinlock_t mac_stats_lock;
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];
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];
};
/* 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 txq_count;
struct sfc_txq_info *txq_info;
struct sfc_rss rss;
boolean_t isolated;
uint32_t tunnel_encaps;
struct rte_pci_addr pci_addr;
uint16_t port_id;
char *dp_rx_name;
char *dp_tx_name;
};
/* 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;
}
/* 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
* and add device level lock. Adapter control operations which
* change its state should acquire the lock.
*/
rte_spinlock_t lock;
enum sfc_adapter_state state;
struct rte_eth_dev *eth_dev;
struct rte_kvargs *kvargs;
int socket_id;
efsys_bar_t mem_bar;
efx_family_t family;
efx_nic_t *nic;
rte_spinlock_t nic_lock;
rte_atomic32_t restart_required;
struct sfc_mcdi mcdi;
struct sfc_intr intr;
struct sfc_port port;
struct sfc_filter filter;
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;
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;
struct sfc_rxq *rxq_ctrl;
struct sfc_txq *txq_ctrl;
boolean_t tso;
boolean_t tso_encap;
uint32_t rxd_wait_timeout_ns;
};
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.
*/
static inline void
sfc_adapter_lock_init(struct sfc_adapter *sa)
{
rte_spinlock_init(&sa->lock);
}
static inline int
sfc_adapter_is_locked(struct sfc_adapter *sa)
{
return rte_spinlock_is_locked(&sa->lock);
}
static inline void
sfc_adapter_lock(struct sfc_adapter *sa)
{
rte_spinlock_lock(&sa->lock);
}
static inline int
sfc_adapter_trylock(struct sfc_adapter *sa)
{
return rte_spinlock_trylock(&sa->lock);
}
static inline void
sfc_adapter_unlock(struct sfc_adapter *sa)
{
rte_spinlock_unlock(&sa->lock);
}
static inline void
sfc_adapter_lock_fini(__rte_unused struct sfc_adapter *sa)
{
/* Just for symmetry of the API */
}
/** 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(const struct sfc_adapter *sa, const char *name, uint16_t id,
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_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);
int sfc_configure(struct sfc_adapter *sa);
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_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_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_reset_mac_stats(struct sfc_adapter *sa);
int sfc_set_rx_mode(struct sfc_adapter *sa);
#ifdef __cplusplus
}
#endif
#endif /* _SFC_H */
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