/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2009, 2010 Daniel Borkmann.
 * Subject to the GPL, version 2.
 */

#ifndef RX_RING_H
#define RX_RING_H

#include <stdbool.h>

#include "ring.h"

extern void ring_rx_setup(struct ring *ring, int sock, size_t size, int ifindex,
			  struct pollfd *poll, bool v3, bool jumbo_support,
			  bool verbose, uint32_t fanout_group, uint32_t fanout_type);
extern void destroy_rx_ring(int sock, struct ring *ring);
extern int get_rx_net_stats(int sock, uint64_t *packets, uint64_t *drops, bool v3);

static inline int user_may_pull_from_rx(struct tpacket2_hdr *hdr)
{
	return ((hdr->tp_status & TP_STATUS_USER) == TP_STATUS_USER);
}

static inline void kernel_may_pull_from_rx(struct tpacket2_hdr *hdr)
{
	hdr->tp_status = TP_STATUS_KERNEL;
}

#ifdef HAVE_TPACKET3
static inline int user_may_pull_from_rx_block(struct block_desc *pbd)
{
	return ((pbd->h1.block_status & TP_STATUS_USER) == TP_STATUS_USER);
}

static inline void kernel_may_pull_from_rx_block(struct block_desc *pbd)
{
	pbd->h1.block_status = TP_STATUS_KERNEL;
}
#endif /* HAVE_TPACKET3 */

/* Fanout types. */

#ifndef PACKET_FANOUT_HASH
# define PACKET_FANOUT_HASH		0
#endif

#ifndef PACKET_FANOUT_LB
# define PACKET_FANOUT_LB		1
#endif

#ifndef PACKET_FANOUT_CPU
# define PACKET_FANOUT_CPU		2
#endif

#ifndef PACKET_FANOUT_ROLLOVER
# define PACKET_FANOUT_ROLLOVER		3
#endif

#ifndef PACKET_FANOUT_RND
# define PACKET_FANOUT_RND		4
#endif

#ifndef PACKET_FANOUT_QM
# define PACKET_FANOUT_QM		5
#endif

#ifndef PACKET_FANOUT_FLAG_ROLLOVER
# define PACKET_FANOUT_FLAG_ROLLOVER	0x1000
#endif

#ifndef PACKET_FANOUT_FLAG_DEFRAG
# define PACKET_FANOUT_FLAG_DEFRAG	0x8000
#endif

#endif /* RX_RING_H */
a85'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/Documentation?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/Documentation?h=nds-private-remove&amp;id=4c2e07c6a29e0129e975727b9f57eede813eea85'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/Documentation?h=nds-private-remove&amp;id=4c2e07c6a29e0129e975727b9f57eede813eea85'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/Documentation?h=nds-private-remove&amp;id=4c2e07c6a29e0129e975727b9f57eede813eea85'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/Documentation'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=4c2e07c6a29e0129e975727b9f57eede813eea85'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation?h=nds-private-remove&amp;id=4c2e07c6a29e0129e975727b9f57eede813eea85'>Documentation</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='4c2e07c6a29e0129e975727b9f57eede813eea85'/><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'>2016-06-26 17:52:03 -0700</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-06-26 17:52:03 -0700</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation?h=nds-private-remove&amp;id=4c2e07c6a29e0129e975727b9f57eede813eea85'>4c2e07c6a29e0129e975727b9f57eede813eea85</a> (<a href='/cgit.cgi/linux/net-next.git/patch/Documentation?id=4c2e07c6a29e0129e975727b9f57eede813eea85'>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=4c2e07c6a29e0129e975727b9f57eede813eea85'>2fad141a9352c0bd5430651fcc52087063fd5541</a> /<a href='/cgit.cgi/linux/net-next.git/tree/Documentation?h=nds-private-remove&amp;id=4c2e07c6a29e0129e975727b9f57eede813eea85'>Documentation</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation?h=nds-private-remove&amp;id=2ac9b9735b4d1924d7484e497c930ea013a29ac1'>2ac9b9735b4d1924d7484e497c930ea013a29ac1</a> (<a href='/cgit.cgi/linux/net-next.git/diff/Documentation?h=nds-private-remove&amp;id=4c2e07c6a29e0129e975727b9f57eede813eea85&amp;id2=2ac9b9735b4d1924d7484e497c930ea013a29ac1'>diff</a>)</td></tr></table>
<div class='commit-subject'>Linux 4.7-rc5</div><div class='commit-msg'></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=4c2e07c6a29e0129e975727b9f57eede813eea85'>Diffstat</a> (limited to 'Documentation')</div><table summary='diffstat' class='diffstat'>