/**********************************************************************
 * Author: Cavium, Inc.
 *
 * Contact: support@cavium.com
 *          Please include "LiquidIO" in the subject.
 *
 * Copyright (c) 2003-2016 Cavium, Inc.
 *
 * This file is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, Version 2, as
 * published by the Free Software Foundation.
 *
 * This file is distributed in the hope that it will be useful, but
 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
 * NONINFRINGEMENT.  See the GNU General Public License for more details.
 ***********************************************************************/
#ifndef __MAILBOX_H__
#define __MAILBOX_H__

/* Macros for Mail Box Communication */

#define OCTEON_MBOX_DATA_MAX	32

#define OCTEON_VF_ACTIVE		0x1
#define OCTEON_VF_FLR_REQUEST		0x2
#define OCTEON_PF_CHANGED_VF_MACADDR	0x4

/*Macro for Read acknowldgement*/
#define OCTEON_PFVFACK			0xffffffffffffffff
#define OCTEON_PFVFSIG			0x1122334455667788
#define OCTEON_PFVFERR			0xDEADDEADDEADDEAD

#define LIO_MBOX_WRITE_WAIT_CNT          1000
#define LIO_MBOX_WRITE_WAIT_TIME           10

enum octeon_mbox_cmd_status {
	OCTEON_MBOX_STATUS_SUCCESS = 0,
	OCTEON_MBOX_STATUS_FAILED = 1,
	OCTEON_MBOX_STATUS_BUSY = 2
};

enum octeon_mbox_message_type {
	OCTEON_MBOX_REQUEST = 0,
	OCTEON_MBOX_RESPONSE = 1
};

union octeon_mbox_message {
	u64 u64;
	struct {
		u16 type : 1;
		u16 resp_needed : 1;
		u16 cmd : 6;
		u16 len : 8;
		u8 params[6];
	} s;
};

typedef void (*octeon_mbox_callback_t)(void *, void *, void *);

struct octeon_mbox_cmd {
	union octeon_mbox_message msg;
	u64 data[OCTEON_MBOX_DATA_MAX];
	u32 q_no;
	u32 recv_len;
	u32 recv_status;
	octeon_mbox_callback_t fn;
	void *fn_arg;
};

enum octeon_mbox_state {
	OCTEON_MBOX_STATE_IDLE = 1,
	OCTEON_MBOX_STATE_REQUEST_RECEIVING = 2,
	OCTEON_MBOX_STATE_REQUEST_RECEIVED = 4,
	OCTEON_MBOX_STATE_RESPONSE_PENDING = 8,
	OCTEON_MBOX_STATE_RESPONSE_RECEIVING = 16,
	OCTEON_MBOX_STATE_RESPONSE_RECEIVED = 16,
	OCTEON_MBOX_STATE_ERROR = 32
};

struct octeon_mbox {
	/** A spinlock to protect access to this q_mbox. */
	spinlock_t lock;

	struct octeon_device *oct_dev;

	u32 q_no;

	enum octeon_mbox_state state;

	struct cavium_wk mbox_poll_wk;

	/** SLI_MAC_PF_MBOX_INT for PF, SLI_PKT_MBOX_INT for VF. */
	void *mbox_int_reg;

	/** SLI_PKT_PF_VF_MBOX_SIG(0) for PF, SLI_PKT_PF_VF_MBOX_SIG(1) for VF.
	 */
	void *mbox_write_reg;

	/** SLI_PKT_PF_VF_MBOX_SIG(1) for PF, SLI_PKT_PF_VF_MBOX_SIG(0) for VF.
	 */
	void *mbox_read_reg;

	struct octeon_mbox_cmd mbox_req;

	struct octeon_mbox_cmd mbox_resp;

};

int octeon_mbox_read(struct octeon_mbox *mbox);
int octeon_mbox_write(struct octeon_device *oct,
		      struct octeon_mbox_cmd *mbox_cmd);
int octeon_mbox_process_message(struct octeon_mbox *mbox);

#endif
net-next.git/commit/net?h=nds-private-remove&amp;id=2fb78e89405f4321b86274a0c24b30896dd50529'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/x25?h=nds-private-remove&amp;id=2fb78e89405f4321b86274a0c24b30896dd50529'>x25</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='2fb78e89405f4321b86274a0c24b30896dd50529'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-27 12:36:39 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-27 12:36:39 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/x25?h=nds-private-remove&amp;id=2fb78e89405f4321b86274a0c24b30896dd50529'>2fb78e89405f4321b86274a0c24b30896dd50529</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/x25?id=2fb78e89405f4321b86274a0c24b30896dd50529'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=2fb78e89405f4321b86274a0c24b30896dd50529'>4de241e242441b80bd3f0022fc546bb07374571f</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/x25?h=nds-private-remove&amp;id=2fb78e89405f4321b86274a0c24b30896dd50529'>net/x25</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/x25?h=nds-private-remove&amp;id=dd3b9f25c867cb2507a45e436d6ede8eb08e7b05'>dd3b9f25c867cb2507a45e436d6ede8eb08e7b05</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/x25?h=nds-private-remove&amp;id=2fb78e89405f4321b86274a0c24b30896dd50529&amp;id2=dd3b9f25c867cb2507a45e436d6ede8eb08e7b05'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/x25?h=nds-private-remove&amp;id=c14024dbb156c8392908aaa822097d27c6af8ec8'>c14024dbb156c8392908aaa822097d27c6af8ec8</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/x25?h=nds-private-remove&amp;id=2fb78e89405f4321b86274a0c24b30896dd50529&amp;id2=c14024dbb156c8392908aaa822097d27c6af8ec8'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'for-linus' of git://git.kernel.dk/linux-block</div><div class='commit-msg'>Pull block fixes from Jens Axboe:
 "A set of fixes for this series. This contains:

   - Set of fixes for the nvme target code

   - A revert of patch from this merge window, causing a regression with
     WRITE_SAME on iSCSI targets at least.

   - A fix for a use-after-free in the new O_DIRECT bdev code.

   - Two fixes for the xen-blkfront driver"

* 'for-linus' of git://git.kernel.dk/linux-block:
  Revert "sd: remove __data_len hack for WRITE SAME"
  nvme-fc: use blk_rq_nr_phys_segments
  nvmet-rdma: Fix missing dma sync to nvme data structures
  nvmet: Call fatal_error from keep-alive timout expiration
  nvmet: cancel fatal error and flush async work before free controller
  nvmet: delete controllers deletion upon subsystem release
  nvmet_fc: correct logic in disconnect queue LS handling
  block: fix use after free in __blkdev_direct_IO
  xen-blkfront: correct maximum segment accounting
  xen-blkfront: feature flags handling adjustments
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=2fb78e89405f4321b86274a0c24b30896dd50529'>Diffstat</a> (limited to 'net/x25')</div><table summary='diffstat' class='diffstat'>