Imported Upstream version 17.05

Change-Id: Id1e419c5a214e4a18739663b91f0f9a549f1fdc6
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>

1 files changed, 322 insertions, 0 deletions

diff --git a/drivers/net/sfc/sfc.h b/drivers/net/sfc/sfc.h
new file mode 100644
index 00000000..fad0ce04
--- /dev/null
+++ b/drivers/net/sfc/sfc.h
@@ -0,0 +1,322 @@
+/*-
+ *   BSD LICENSE
+ *
+ * Copyright (c) 2016-2017 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * 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
+#define _SFC_H
+
+#include <stdbool.h>
+
+#include <rte_ethdev.h>
+#include <rte_kvargs.h>
+#include <rte_spinlock.h>
+
+#include "efx.h"
+
+#include "sfc_filter.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define SFC_DEV_TO_PCI(eth_dev) \
+	RTE_DEV_TO_PCI((eth_dev)->device)
+
+#if EFSYS_OPT_RX_SCALE
+/** RSS key length (bytes) */
+#define SFC_RSS_KEY_SIZE	40
+/** RSS hash offloads mask */
+#define SFC_RSS_OFFLOADS	(ETH_RSS_IP | ETH_RSS_TCP)
+#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;
+	bool				logging;
+	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;
+};
+
+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;
+
+	boolean_t			promisc;
+	boolean_t			allmulti;
+
+	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;
+	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];
+};
+
+/* Adapter private data */
+struct sfc_adapter {
+	/*
+	 * 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;
+	bool				debug_init;
+	int				socket_id;
+	efsys_bar_t			mem_bar;
+	efx_family_t			family;
+	efx_nic_t			*nic;
+	rte_spinlock_t			nic_lock;
+
+	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			txq_max_entries;
+
+	uint32_t			evq_flags;
+	unsigned int			evq_count;
+
+	unsigned int			mgmt_evq_index;
+	rte_spinlock_t			mgmt_evq_lock;
+	struct sfc_evq			*mgmt_evq;
+
+	unsigned int			rxq_count;
+	struct sfc_rxq_info		*rxq_info;
+
+	unsigned int			txq_count;
+	struct sfc_txq_info		*txq_info;
+
+	boolean_t			tso;
+
+	unsigned int			rss_channels;
+
+#if EFSYS_OPT_RX_SCALE
+	efx_rx_scale_support_t		rss_support;
+	efx_rx_hash_support_t		hash_support;
+	efx_rx_hash_type_t		rss_hash_types;
+	unsigned int			rss_tbl[EFX_RSS_TBL_SIZE];
+	uint8_t				rss_key[SFC_RSS_KEY_SIZE];
+#endif
+
+	const struct sfc_dp_rx		*dp_rx;
+	const struct sfc_dp_tx		*dp_tx;
+};
+
+/*
+ * 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);
+
+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);
+
+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 */