i40e: init code and hardware support

/*******************************************************************************

 *

 * Intel Ethernet Controller XL710 Family Linux Driver

 * Copyright(c) 2013 Intel Corporation.

 *

 * This program is free software; you can redistribute it and/or modify it

 * under the terms and conditions of the GNU General Public License,

 * version 2, as published by the Free Software Foundation.

 *

 * This program is distributed in the hope it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for

 * more details.

 *

 * You should have received a copy of the GNU General Public License along with

 * this program; if not, write to the Free Software Foundation, Inc.,

 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * The full GNU General Public License is included in this distribution in

 * the file called "COPYING".

 *

 * Contact Information:

 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>

 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

 *

 ******************************************************************************/

#ifndef _I40E_ADMINQ_H_

#define _I40E_ADMINQ_H_

#include "i40e_osdep.h"

#include "i40e_adminq_cmd.h"

#define I40E_ADMINQ_DESC(R, i)   \

	(&(((struct i40e_aq_desc *)((R).desc))[i]))

#define I40E_ADMINQ_DESC_ALIGNMENT 4096

struct i40e_adminq_ring {

	void *desc;		/* Descriptor ring memory */

	void *details;		/* ASQ details */

	union {

		struct i40e_dma_mem *asq_bi;

		struct i40e_dma_mem *arq_bi;

	} r;

	u64 dma_addr;		/* Physical address of the ring */

	u16 count;		/* Number of descriptors */

	u16 rx_buf_len;		/* Admin Receive Queue buffer length */

	/* used for interrupt processing */

	u16 next_to_use;

	u16 next_to_clean;

	/* used for queue tracking */

	u32 head;

	u32 tail;

};

/* ASQ transaction details */

struct i40e_asq_cmd_details {

	void *callback; /* cast from type I40E_ADMINQ_CALLBACK */

	u64 cookie;

	u16 flags_ena;

	u16 flags_dis;

	bool async;

	bool postpone;

};

#define I40E_ADMINQ_DETAILS(R, i)   \

	(&(((struct i40e_asq_cmd_details *)((R).details))[i]))

/* ARQ event information */

struct i40e_arq_event_info {

	struct i40e_aq_desc desc;

	u16 msg_size;

	u8 *msg_buf;

};

/* Admin Queue information */

struct i40e_adminq_info {

	struct i40e_adminq_ring arq;    /* receive queue */

	struct i40e_adminq_ring asq;    /* send queue */

	u16 num_arq_entries;            /* receive queue depth */

	u16 num_asq_entries;            /* send queue depth */

	u16 arq_buf_size;               /* receive queue buffer size */

	u16 asq_buf_size;               /* send queue buffer size */

	u16 fw_maj_ver;                 /* firmware major version */

	u16 fw_min_ver;                 /* firmware minor version */

	u16 api_maj_ver;                /* api major version */

	u16 api_min_ver;                /* api minor version */

	struct mutex asq_mutex; /* Send queue lock */

	struct mutex arq_mutex; /* Receive queue lock */

	struct i40e_dma_mem asq_mem;    /* send queue dynamic memory */

	struct i40e_dma_mem arq_mem;    /* receive queue dynamic memory */

	/* last status values on send and receive queues */

	enum i40e_admin_queue_err asq_last_status;

	enum i40e_admin_queue_err arq_last_status;

};

/* general information */

#define I40E_AQ_LARGE_BUF	512

#define I40E_ASQ_CMD_TIMEOUT	100000  /* usecs */

void i40e_fill_default_direct_cmd_desc(struct i40e_aq_desc *desc,

				       u16 opcode);

#endif /* _I40E_ADMINQ_H_ */

/*******************************************************************************

 *

 * Intel Ethernet Controller XL710 Family Linux Driver

 * Copyright(c) 2013 Intel Corporation.

 *

 * This program is free software; you can redistribute it and/or modify it

 * under the terms and conditions of the GNU General Public License,

 * version 2, as published by the Free Software Foundation.

 *

 * This program is distributed in the hope it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for

 * more details.

 *

 * You should have received a copy of the GNU General Public License along with

 * this program; if not, write to the Free Software Foundation, Inc.,

 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * The full GNU General Public License is included in this distribution in

 * the file called "COPYING".

 *

 * Contact Information:

 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>

 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

 *

 ******************************************************************************/

#ifndef _I40E_ALLOC_H_

#define _I40E_ALLOC_H_

struct i40e_hw;

/* Memory allocation types */

enum i40e_memory_type {

	i40e_mem_arq_buf = 0,		/* ARQ indirect command buffer */

	i40e_mem_asq_buf = 1,

	i40e_mem_atq_buf = 2,		/* ATQ indirect command buffer */

	i40e_mem_arq_ring = 3,		/* ARQ descriptor ring */

	i40e_mem_atq_ring = 4,		/* ATQ descriptor ring */

	i40e_mem_pd = 5,		/* Page Descriptor */

	i40e_mem_bp = 6,		/* Backing Page - 4KB */

	i40e_mem_bp_jumbo = 7,		/* Backing Page - > 4KB */

	i40e_mem_reserved

};

/* prototype for functions used for dynamic memory allocation */

i40e_status i40e_allocate_dma_mem(struct i40e_hw *hw,

					    struct i40e_dma_mem *mem,

					    enum i40e_memory_type type,

					    u64 size, u32 alignment);

i40e_status i40e_free_dma_mem(struct i40e_hw *hw,

					struct i40e_dma_mem *mem);

i40e_status i40e_allocate_virt_mem(struct i40e_hw *hw,

					     struct i40e_virt_mem *mem,

					     u32 size);

i40e_status i40e_free_virt_mem(struct i40e_hw *hw,

					 struct i40e_virt_mem *mem);

#endif /* _I40E_ALLOC_H_ */