5d8fd932e4
This fixes several breakages (panics) since the tcp_lro code was committed that have been reported. Quite a few new features are now in rack (prefecting of DGP -- Dynamic Goodput Pacing among the largest). There is also support for ack-war prevention. Documents comming soon on rack.. Sponsored by: Netflix Reviewed by: rscheff, mtuexen Differential Revision: https://reviews.freebsd.org/D30036
40 lines
1.0 KiB
C
40 lines
1.0 KiB
C
#ifndef __tcp_accounting_h__
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#define __tcp_accounting_h__
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/*
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* Return values from tcp_do_ack_accounting
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* and indexs to the into the tcp_proc_time[]
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* array.
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*/
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#define ACK_BEHIND 0
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#define ACK_SACK 1
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#define ACK_CUMACK 2
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#define ACK_CUMACK_SACK 3
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#define ACK_DUPACK 4
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#define ACK_RWND 5
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/* Added values for tracking output too */
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#define SND_BLOCKED 6
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#define SND_LIMITED 7
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#define SND_OUT_DATA 8
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#define SND_OUT_ACK 9
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#define SND_OUT_FAIL 10
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/* We also count in the counts array two added (MSS sent and ACKS In) */
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#define CNT_OF_MSS_OUT 11
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#define CNT_OF_ACKS_IN 12
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/* for the tcpcb we add two more cycle counters */
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#define CYC_HANDLE_MAP 11
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#define CYC_HANDLE_ACK 12
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/* Should the tp->xxx array's be alloc'ed? */
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/* #define TCP_NUM_PROC_COUNTERS 11 defined in tcp_var.h */
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/* #define TCP_NUM_CNT_COUNTERS 13 defined in tcp_var.h */
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#ifdef _KERNEL
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#ifdef TCP_ACCOUNTING
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extern counter_u64_t tcp_cnt_counters[TCP_NUM_CNT_COUNTERS];
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extern counter_u64_t tcp_proc_time[TCP_NUM_PROC_COUNTERS];
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#endif
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#endif
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#endif
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