#ifndef __nosy_dump_h__
#define __nosy_dump_h__

#define array_length(array) (sizeof(array) / sizeof(array[0]))

#define ACK_NO_ACK   0x0
#define ACK_DONE(a)  ((a >> 2) == 0)
#define ACK_BUSY(a)  ((a >> 2) == 1)
#define ACK_ERROR(a) ((a >> 2) == 3)

#include <stdint.h>

struct phy_packet {
	uint32_t timestamp;
	union {
		struct {
			uint32_t zero:24;
			uint32_t phy_id:6;
			uint32_t identifier:2;
		} common, link_on;

		struct {
			uint32_t zero:16;
			uint32_t gap_count:6;
			uint32_t set_gap_count:1;
			uint32_t set_root:1;
			uint32_t root_id:6;
			uint32_t identifier:2;
		} phy_config;

		struct {
			uint32_t more_packets:1;
			uint32_t initiated_reset:1;
			uint32_t port2:2;
			uint32_t port1:2;
			uint32_t port0:2;
			uint32_t power_class:3;
			uint32_t contender:1;
			uint32_t phy_delay:2;
			uint32_t phy_speed:2;
			uint32_t gap_count:6;
			uint32_t link_active:1;
			uint32_t extended:1;
			uint32_t phy_id:6;
			uint32_t identifier:2;
		} self_id;

		struct {
			uint32_t more_packets:1;
			uint32_t reserved1:1;
			uint32_t porth:2;
			uint32_t portg:2;
			uint32_t portf:2;
			uint32_t porte:2;
			uint32_t portd:2;
			uint32_t portc:2;
			uint32_t portb:2;
			uint32_t porta:2;
			uint32_t reserved0:2;
			uint32_t sequence:3;
			uint32_t extended:1;
			uint32_t phy_id:6;
			uint32_t identifier:2;
		} ext_self_id;
	};
	uint32_t inverted;
	uint32_t ack;
};

#define TCODE_PHY_PACKET 0x10

#define PHY_PACKET_CONFIGURATION 0x00
#define PHY_PACKET_LINK_ON 0x01
#define PHY_PACKET_SELF_ID 0x02

struct link_packet {
	uint32_t timestamp;
	union {
		struct {
			uint32_t priority:4;
			uint32_t tcode:4;
			uint32_t rt:2;
			uint32_t tlabel:6;
			uint32_t destination:16;

			uint32_t offset_high:16;
			uint32_t source:16;

			uint32_t offset_low;
		} common;

		struct {
			uint32_t common[3];
			uint32_t crc;
		} read_quadlet;

		struct {
			uint32_t common[3];
			uint32_t data;
			uint32_t crc;
		} read_quadlet_response;

		struct {
			uint32_t common[3];
			uint32_t extended_tcode:16;
			uint32_t data_length:16;
			uint32_t crc;
		} read_block;

		struct {
			uint32_t common[3];
			uint32_t extended_tcode:16;
			uint32_t data_length:16;
			uint32_t crc;
			uint32_t data[0];
			/* crc and ack follows. */
		} read_block_response;

		struct {
			uint32_t common[3];
			uint32_t data;
			uint32_t crc;
		} write_quadlet;

		struct {
			uint32_t common[3];
			uint32_t extended_tcode:16;
			uint32_t data_length:16;
			uint32_t crc;
			uint32_t data[0];
			/* crc and ack follows. */
		} write_block;

		struct {
			uint32_t common[3];
			uint32_t crc;
		} write_response;

		struct {
			uint32_t common[3];
			uint32_t data;
			uint32_t crc;
		} cycle_start;

		struct {
			uint32_t sy:4;
			uint32_t tcode:4;
			uint32_t channel:6;
			uint32_t tag:2;
			uint32_t data_length:16;

			uint32_t crc;
		} iso_data;
	};
};

struct subaction {
	uint32_t ack;
	size_t length;
	struct list link;
	struct link_packet packet;
};

struct link_transaction {
	int request_node, response_node, tlabel;
	struct subaction *request, *response;
	struct list request_list, response_list;
	struct list link;
};

int decode_fcp(struct link_transaction *t);

#endif /* __nosy_dump_h__ */
h=nds-private-remove&amp;id=433e19cf33d34bb6751c874a9c00980552fe508c'>power</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/power/cpupower?h=nds-private-remove&amp;id=433e19cf33d34bb6751c874a9c00980552fe508c'>cpupower</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='433e19cf33d34bb6751c874a9c00980552fe508c'/><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>Dexuan Cui &lt;decui@microsoft.com&gt;</td><td class='right'>2017-01-28 11:46:02 -0700</td></tr>
<tr><th>committer</th><td>Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;</td><td class='right'>2017-01-31 10:59:48 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/power/cpupower?h=nds-private-remove&amp;id=433e19cf33d34bb6751c874a9c00980552fe508c'>433e19cf33d34bb6751c874a9c00980552fe508c</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/power/cpupower?id=433e19cf33d34bb6751c874a9c00980552fe508c'>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=433e19cf33d34bb6751c874a9c00980552fe508c'>ce6547ef2987fbb289fa28f03536328a42781651</a> /<a href='/cgit.cgi/linux/net-next.git/tree/tools/power/cpupower?h=nds-private-remove&amp;id=433e19cf33d34bb6751c874a9c00980552fe508c'>tools/power/cpupower</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/power/cpupower?h=nds-private-remove&amp;id=191e885a2e130e639bb0c8ee350d7047294f2ce6'>191e885a2e130e639bb0c8ee350d7047294f2ce6</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/power/cpupower?h=nds-private-remove&amp;id=433e19cf33d34bb6751c874a9c00980552fe508c&amp;id2=191e885a2e130e639bb0c8ee350d7047294f2ce6'>diff</a>)</td></tr></table>
<div class='commit-subject'>Drivers: hv: vmbus: finally fix hv_need_to_signal_on_read()</div><div class='commit-msg'>Commit a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in
hv_need_to_signal_on_read()")
added the proper mb(), but removed the test "prev_write_sz &lt; pending_sz"
when making the signal decision.

As a result, the guest can signal the host unnecessarily,
and then the host can throttle the guest because the host
thinks the guest is buggy or malicious; finally the user
running stress test can perceive intermittent freeze of
the guest.

This patch brings back the test, and properly handles the
in-place consumption APIs used by NetVSC (see get_next_pkt_raw(),
put_pkt_raw() and commit_rd_index()).

Fixes: a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in
hv_need_to_signal_on_read()")

Signed-off-by: Dexuan Cui &lt;decui@microsoft.com&gt;
Reported-by: Rolf Neugebauer &lt;rolf.neugebauer@docker.com&gt;
Tested-by: Rolf Neugebauer &lt;rolf.neugebauer@docker.com&gt;
Cc: "K. Y. Srinivasan" &lt;kys@microsoft.com&gt;
Cc: Haiyang Zhang &lt;haiyangz@microsoft.com&gt;
Cc: Stephen Hemminger &lt;sthemmin@microsoft.com&gt;
Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: K. Y. Srinivasan &lt;kys@microsoft.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=433e19cf33d34bb6751c874a9c00980552fe508c'>Diffstat</a> (limited to 'tools/power/cpupower')</div><table summary='diffstat' class='diffstat'>