From: dlg Date: Sun, 12 Apr 2015 09:58:46 +0000 (+0000) Subject: pull structs and macros that are only used in hfsc.c out of the header X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=4a1cddc865c0ed0f521f3808772f74d80a92adaf;p=openbsd pull structs and macros that are only used in hfsc.c out of the header and into the .c file. ok henning@ --- diff --git a/sys/net/hfsc.c b/sys/net/hfsc.c index 00dafb83f49..860a8389e38 100644 --- a/sys/net/hfsc.c +++ b/sys/net/hfsc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: hfsc.c,v 1.17 2015/04/11 13:00:12 dlg Exp $ */ +/* $OpenBSD: hfsc.c,v 1.18 2015/04/12 09:58:46 dlg Exp $ */ /* * Copyright (c) 2012-2013 Henning Brauer @@ -51,6 +51,7 @@ #include #include #include +#include #include #include @@ -62,6 +63,146 @@ /* need to provide dummies for hfsc-less kernels to reduce the if.h horror */ #include "pf.h" #if NPF > 0 +/* + * kernel internal service curve representation + * coordinates are given by 64 bit unsigned integers. + * x-axis: unit is clock count. for the intel x86 architecture, + * the raw Pentium TSC (Timestamp Counter) value is used. + * virtual time is also calculated in this time scale. + * y-axis: unit is byte. + * + * the service curve parameters are converted to the internal + * representation. + * the slope values are scaled to avoid overflow. + * the inverse slope values as well as the y-projection of the 1st + * segment are kept in order to to avoid 64-bit divide operations + * that are expensive on 32-bit architectures. + * + * note: Intel Pentium TSC never wraps around in several thousands of years. + * x-axis doesn't wrap around for 1089 years with 1GHz clock. + * y-axis doesn't wrap around for 4358 years with 1Gbps bandwidth. + */ + +/* kernel internal representation of a service curve */ +struct hfsc_internal_sc { + u_int64_t sm1; /* scaled slope of the 1st segment */ + u_int64_t ism1; /* scaled inverse-slope of the 1st segment */ + u_int64_t dx; /* the x-projection of the 1st segment */ + u_int64_t dy; /* the y-projection of the 1st segment */ + u_int64_t sm2; /* scaled slope of the 2nd segment */ + u_int64_t ism2; /* scaled inverse-slope of the 2nd segment */ +}; + +/* runtime service curve */ +struct hfsc_runtime_sc { + u_int64_t x; /* current starting position on x-axis */ + u_int64_t y; /* current starting position on x-axis */ + u_int64_t sm1; /* scaled slope of the 1st segment */ + u_int64_t ism1; /* scaled inverse-slope of the 1st segment */ + u_int64_t dx; /* the x-projection of the 1st segment */ + u_int64_t dy; /* the y-projection of the 1st segment */ + u_int64_t sm2; /* scaled slope of the 2nd segment */ + u_int64_t ism2; /* scaled inverse-slope of the 2nd segment */ +}; + +struct hfsc_classq { + struct mbuf *tail; /* Tail of packet queue */ + int qlen; /* Queue length (in number of packets) */ + int qlimit; /* Queue limit (in number of packets*) */ + int qtype; /* Queue type */ +}; + +/* for TAILQ based ellist and actlist implementation */ +struct hfsc_class; +typedef TAILQ_HEAD(hfsc_eligible, hfsc_class) hfsc_ellist_t; +typedef TAILQ_ENTRY(hfsc_class) hfsc_elentry_t; +typedef TAILQ_HEAD(hfsc_active, hfsc_class) hfsc_actlist_t; +typedef TAILQ_ENTRY(hfsc_class) hfsc_actentry_t; +#define hfsc_ellist_first(s) TAILQ_FIRST(s) +#define hfsc_actlist_first(s) TAILQ_FIRST(s) +#define hfsc_actlist_last(s) TAILQ_LAST(s, hfsc_active) + +struct hfsc_class { + u_int cl_id; /* class id (just for debug) */ + u_int32_t cl_handle; /* class handle */ + struct hfsc_if *cl_hif; /* back pointer to struct hfsc_if */ + int cl_flags; /* misc flags */ + + struct hfsc_class *cl_parent; /* parent class */ + struct hfsc_class *cl_siblings; /* sibling classes */ + struct hfsc_class *cl_children; /* child classes */ + + struct hfsc_classq *cl_q; /* class queue structure */ +/* struct red *cl_red;*/ /* RED state */ + struct altq_pktattr *cl_pktattr; /* saved header used by ECN */ + + u_int64_t cl_total; /* total work in bytes */ + u_int64_t cl_cumul; /* cumulative work in bytes + done by real-time criteria */ + u_int64_t cl_d; /* deadline */ + u_int64_t cl_e; /* eligible time */ + u_int64_t cl_vt; /* virtual time */ + u_int64_t cl_f; /* time when this class will fit for + link-sharing, max(myf, cfmin) */ + u_int64_t cl_myf; /* my fit-time (as calculated from this + class's own upperlimit curve) */ + u_int64_t cl_myfadj; /* my fit-time adjustment + (to cancel history dependence) */ + u_int64_t cl_cfmin; /* earliest children's fit-time (used + with cl_myf to obtain cl_f) */ + u_int64_t cl_cvtmin; /* minimal virtual time among the + children fit for link-sharing + (monotonic within a period) */ + u_int64_t cl_vtadj; /* intra-period cumulative vt + adjustment */ + u_int64_t cl_vtoff; /* inter-period cumulative vt offset */ + u_int64_t cl_cvtmax; /* max child's vt in the last period */ + + u_int64_t cl_initvt; /* init virtual time (for debugging) */ + + struct hfsc_internal_sc *cl_rsc; /* internal real-time service curve */ + struct hfsc_internal_sc *cl_fsc; /* internal fair service curve */ + struct hfsc_internal_sc *cl_usc; /* internal upperlimit service curve */ + struct hfsc_runtime_sc cl_deadline; /* deadline curve */ + struct hfsc_runtime_sc cl_eligible; /* eligible curve */ + struct hfsc_runtime_sc cl_virtual; /* virtual curve */ + struct hfsc_runtime_sc cl_ulimit; /* upperlimit curve */ + + u_int cl_vtperiod; /* vt period sequence no */ + u_int cl_parentperiod; /* parent's vt period seqno */ + int cl_nactive; /* number of active children */ + hfsc_actlist_t *cl_actc; /* active children list */ + + hfsc_actentry_t cl_actlist; /* active children list entry */ + hfsc_elentry_t cl_ellist; /* eligible list entry */ + + struct { + struct hfsc_pktcntr xmit_cnt; + struct hfsc_pktcntr drop_cnt; + u_int period; + } cl_stats; +}; + +/* + * hfsc interface state + */ +struct hfsc_if { + struct hfsc_if *hif_next; /* interface state list */ + struct ifqueue *hif_ifq; /* backpointer to ifq */ + struct hfsc_class *hif_rootclass; /* root class */ + struct hfsc_class *hif_defaultclass; /* default class */ + struct hfsc_class **hif_class_tbl; + struct hfsc_class *hif_pollcache; /* cache for poll operation */ + + u_int hif_allocated; /* # of slots in hif_class_tbl */ + u_int hif_classes; /* # of classes in the tree */ + u_int hif_packets; /* # of packets in the tree */ + u_int hif_classid; /* class id sequence number */ + + hfsc_ellist_t *hif_eligible; /* eligible list */ + struct timeout hif_defer; /* for queues that weren't ready */ +}; + /* * function prototypes */ @@ -119,6 +260,9 @@ void hfsc_rtsc_min(struct hfsc_runtime_sc *, void hfsc_getclstats(struct hfsc_class_stats *, struct hfsc_class *); struct hfsc_class *hfsc_clh2cph(struct hfsc_if *, u_int32_t); +#define HFSC_CLK_SHIFT 8 +#define HFSC_FREQ (1000000 << HFSC_CLK_SHIFT) +#define HFSC_CLK_PER_TICK (HFSC_FREQ / hz) #define HFSC_HT_INFINITY 0xffffffffffffffffLL /* infinite time value */ struct pool hfsc_class_pl, hfsc_classq_pl, hfsc_internal_sc_pl; diff --git a/sys/net/hfsc.h b/sys/net/hfsc.h index 722c93d01d7..4a09b80d7a0 100644 --- a/sys/net/hfsc.h +++ b/sys/net/hfsc.h @@ -1,4 +1,4 @@ -/* $OpenBSD: hfsc.h,v 1.7 2015/04/11 13:00:12 dlg Exp $ */ +/* $OpenBSD: hfsc.h,v 1.8 2015/04/12 09:58:46 dlg Exp $ */ /* * Copyright (c) 2012-2013 Henning Brauer @@ -33,8 +33,6 @@ #ifndef _HFSC_H_ #define _HFSC_H_ -#include - /* hfsc class flags */ #define HFSC_RED 0x0001 /* use RED */ #define HFSC_ECN 0x0002 /* use RED/ECN */ @@ -109,155 +107,14 @@ struct hfsc_class_stats { }; #ifdef _KERNEL -/* - * kernel internal service curve representation - * coordinates are given by 64 bit unsigned integers. - * x-axis: unit is clock count. for the intel x86 architecture, - * the raw Pentium TSC (Timestamp Counter) value is used. - * virtual time is also calculated in this time scale. - * y-axis: unit is byte. - * - * the service curve parameters are converted to the internal - * representation. - * the slope values are scaled to avoid overflow. - * the inverse slope values as well as the y-projection of the 1st - * segment are kept in order to to avoid 64-bit divide operations - * that are expensive on 32-bit architectures. - * - * note: Intel Pentium TSC never wraps around in several thousands of years. - * x-axis doesn't wrap around for 1089 years with 1GHz clock. - * y-axis doesn't wrap around for 4358 years with 1Gbps bandwidth. - */ - -/* kernel internal representation of a service curve */ -struct hfsc_internal_sc { - u_int64_t sm1; /* scaled slope of the 1st segment */ - u_int64_t ism1; /* scaled inverse-slope of the 1st segment */ - u_int64_t dx; /* the x-projection of the 1st segment */ - u_int64_t dy; /* the y-projection of the 1st segment */ - u_int64_t sm2; /* scaled slope of the 2nd segment */ - u_int64_t ism2; /* scaled inverse-slope of the 2nd segment */ -}; - -/* runtime service curve */ -struct hfsc_runtime_sc { - u_int64_t x; /* current starting position on x-axis */ - u_int64_t y; /* current starting position on x-axis */ - u_int64_t sm1; /* scaled slope of the 1st segment */ - u_int64_t ism1; /* scaled inverse-slope of the 1st segment */ - u_int64_t dx; /* the x-projection of the 1st segment */ - u_int64_t dy; /* the y-projection of the 1st segment */ - u_int64_t sm2; /* scaled slope of the 2nd segment */ - u_int64_t ism2; /* scaled inverse-slope of the 2nd segment */ -}; - -struct hfsc_classq { - struct mbuf *tail; /* Tail of packet queue */ - int qlen; /* Queue length (in number of packets) */ - int qlimit; /* Queue limit (in number of packets*) */ - int qtype; /* Queue type */ -}; - -/* for TAILQ based ellist and actlist implementation */ -struct hfsc_class; -typedef TAILQ_HEAD(hfsc_eligible, hfsc_class) hfsc_ellist_t; -typedef TAILQ_ENTRY(hfsc_class) hfsc_elentry_t; -typedef TAILQ_HEAD(hfsc_active, hfsc_class) hfsc_actlist_t; -typedef TAILQ_ENTRY(hfsc_class) hfsc_actentry_t; -#define hfsc_ellist_first(s) TAILQ_FIRST(s) -#define hfsc_actlist_first(s) TAILQ_FIRST(s) -#define hfsc_actlist_last(s) TAILQ_LAST(s, hfsc_active) - -struct hfsc_class { - u_int cl_id; /* class id (just for debug) */ - u_int32_t cl_handle; /* class handle */ - struct hfsc_if *cl_hif; /* back pointer to struct hfsc_if */ - int cl_flags; /* misc flags */ - - struct hfsc_class *cl_parent; /* parent class */ - struct hfsc_class *cl_siblings; /* sibling classes */ - struct hfsc_class *cl_children; /* child classes */ - - struct hfsc_classq *cl_q; /* class queue structure */ -/* struct red *cl_red;*/ /* RED state */ - struct altq_pktattr *cl_pktattr; /* saved header used by ECN */ - - u_int64_t cl_total; /* total work in bytes */ - u_int64_t cl_cumul; /* cumulative work in bytes - done by real-time criteria */ - u_int64_t cl_d; /* deadline */ - u_int64_t cl_e; /* eligible time */ - u_int64_t cl_vt; /* virtual time */ - u_int64_t cl_f; /* time when this class will fit for - link-sharing, max(myf, cfmin) */ - u_int64_t cl_myf; /* my fit-time (as calculated from this - class's own upperlimit curve) */ - u_int64_t cl_myfadj; /* my fit-time adjustment - (to cancel history dependence) */ - u_int64_t cl_cfmin; /* earliest children's fit-time (used - with cl_myf to obtain cl_f) */ - u_int64_t cl_cvtmin; /* minimal virtual time among the - children fit for link-sharing - (monotonic within a period) */ - u_int64_t cl_vtadj; /* intra-period cumulative vt - adjustment */ - u_int64_t cl_vtoff; /* inter-period cumulative vt offset */ - u_int64_t cl_cvtmax; /* max child's vt in the last period */ - - u_int64_t cl_initvt; /* init virtual time (for debugging) */ - - struct hfsc_internal_sc *cl_rsc; /* internal real-time service curve */ - struct hfsc_internal_sc *cl_fsc; /* internal fair service curve */ - struct hfsc_internal_sc *cl_usc; /* internal upperlimit service curve */ - struct hfsc_runtime_sc cl_deadline; /* deadline curve */ - struct hfsc_runtime_sc cl_eligible; /* eligible curve */ - struct hfsc_runtime_sc cl_virtual; /* virtual curve */ - struct hfsc_runtime_sc cl_ulimit; /* upperlimit curve */ - - u_int cl_vtperiod; /* vt period sequence no */ - u_int cl_parentperiod; /* parent's vt period seqno */ - int cl_nactive; /* number of active children */ - hfsc_actlist_t *cl_actc; /* active children list */ - - hfsc_actentry_t cl_actlist; /* active children list entry */ - hfsc_elentry_t cl_ellist; /* eligible list entry */ - - struct { - struct hfsc_pktcntr xmit_cnt; - struct hfsc_pktcntr drop_cnt; - u_int period; - } cl_stats; -}; - -/* - * hfsc interface state - */ -struct hfsc_if { - struct hfsc_if *hif_next; /* interface state list */ - struct ifqueue *hif_ifq; /* backpointer to ifq */ - struct hfsc_class *hif_rootclass; /* root class */ - struct hfsc_class *hif_defaultclass; /* default class */ - struct hfsc_class **hif_class_tbl; - struct hfsc_class *hif_pollcache; /* cache for poll operation */ - - u_int hif_allocated; /* # of slots in hif_class_tbl */ - u_int hif_classes; /* # of classes in the tree */ - u_int hif_packets; /* # of packets in the tree */ - u_int hif_classid; /* class id sequence number */ - - hfsc_ellist_t *hif_eligible; /* eligible list */ - struct timeout hif_defer; /* for queues that weren't ready */ -}; - -#define HFSC_CLK_SHIFT 8 -#define HFSC_FREQ (1000000 << HFSC_CLK_SHIFT) -#define HFSC_CLK_PER_TICK (HFSC_FREQ / hz) +struct ifnet; +struct ifqueue; +struct pf_queuespec; +struct hfsc_if; #define HFSC_ENABLED(ifq) ((ifq)->ifq_hfsc != NULL) #define HFSC_DEFAULT_QLIMIT 50 -struct ifnet; struct ifqueue; struct pf_queuespec; - void hfsc_initialize(void); int hfsc_attach(struct ifnet *); int hfsc_detach(struct ifnet *);