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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
* Copyright 2017 Joyent, Inc.
*/
#ifndef _SYS_MAC_SOFT_RING_H
#define _SYS_MAC_SOFT_RING_H
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/types.h>
#include <sys/cpuvar.h>
#include <sys/cpupart.h>
#include <sys/processor.h>
#include <sys/stream.h>
#include <sys/squeue.h>
#include <sys/dlpi.h>
#include <sys/mac_impl.h>
#include <sys/mac_stat.h>
#define S_RING_NAMELEN 64
#define MAX_SR_FANOUT 24
extern boolean_t mac_soft_ring_enable;
extern boolean_t mac_latency_optimize;
typedef struct mac_soft_ring_s mac_soft_ring_t;
typedef struct mac_soft_ring_set_s mac_soft_ring_set_t;
typedef void (*mac_soft_ring_drain_func_t)(mac_soft_ring_t *);
typedef mac_tx_cookie_t (*mac_tx_func_t)(mac_soft_ring_set_t *, mblk_t *,
uintptr_t, uint16_t, mblk_t **);
/* Tx notify callback */
typedef struct mac_tx_notify_cb_s {
mac_cb_t mtnf_link; /* Linked list of callbacks */
mac_tx_notify_t mtnf_fn; /* The callback function */
void *mtnf_arg; /* Callback function argument */
} mac_tx_notify_cb_t;
struct mac_soft_ring_s {
/* Keep the most used members 64bytes cache aligned */
kmutex_t s_ring_lock; /* lock before using any member */
uint16_t s_ring_type; /* processing model of the sq */
uint16_t s_ring_state; /* state flags and message count */
int s_ring_count; /* # of mblocks in mac_soft_ring */
size_t s_ring_size; /* Size of data queued */
mblk_t *s_ring_first; /* first mblk chain or NULL */
mblk_t *s_ring_last; /* last mblk chain or NULL */
mac_direct_rx_t s_ring_rx_func;
void *s_ring_rx_arg1;
mac_resource_handle_t s_ring_rx_arg2;
/*
* Threshold after which packets get dropped.
* Is always greater than s_ring_tx_hiwat
*/
int s_ring_tx_max_q_cnt;
/* # of mblocks after which to apply flow control */
int s_ring_tx_hiwat;
/* # of mblocks after which to relieve flow control */
int s_ring_tx_lowat;
boolean_t s_ring_tx_woken_up;
uint32_t s_ring_hiwat_cnt; /* times blocked for Tx descs */
void *s_ring_tx_arg1;
void *s_ring_tx_arg2;
/* Tx notify callback */
mac_cb_info_t s_ring_notify_cb_info; /* cb list info */
mac_cb_t *s_ring_notify_cb_list; /* The cb list */
clock_t s_ring_awaken; /* time async thread was awakened */
kthread_t *s_ring_run; /* Current thread processing sq */
processorid_t s_ring_cpuid; /* processor to bind to */
processorid_t s_ring_cpuid_save; /* saved cpuid during offline */
kcondvar_t s_ring_async; /* async thread blocks on */
clock_t s_ring_wait; /* lbolts to wait after a fill() */
timeout_id_t s_ring_tid; /* timer id of pending timeout() */
kthread_t *s_ring_worker; /* kernel thread id */
char s_ring_name[S_RING_NAMELEN + 1];
uint32_t s_ring_total_inpkt;
uint32_t s_ring_total_rbytes;
uint32_t s_ring_drops;
struct mac_client_impl_s *s_ring_mcip;
kstat_t *s_ring_ksp;
/* Teardown, poll disable control ops */
kcondvar_t s_ring_client_cv; /* Client wait for control op */
mac_soft_ring_set_t *s_ring_set; /* The SRS this ring belongs to */
mac_soft_ring_t *s_ring_next;
mac_soft_ring_t *s_ring_prev;
mac_soft_ring_drain_func_t s_ring_drain_func;
mac_tx_stats_t s_st_stat;
};
typedef void (*mac_srs_drain_proc_t)(mac_soft_ring_set_t *, uint_t);
/* Transmit side Soft Ring Set */
typedef struct mac_srs_tx_s {
/* Members for Tx size processing */
uint32_t st_mode;
mac_tx_func_t st_func;
void *st_arg1;
void *st_arg2;
mac_group_t *st_group; /* TX group for share */
boolean_t st_woken_up;
/*
* st_max_q_cnt is the queue depth threshold to limit
* outstanding packets on the Tx SRS. Once the limit
* is reached, Tx SRS will drop packets until the
* limit goes below the threshold.
*/
uint32_t st_max_q_cnt; /* max. outstanding packets */
/*
* st_hiwat is used Tx serializer and bandwidth mode.
* This is the queue depth threshold upto which
* packets will get buffered with no flow-control
* back pressure applied to the caller. Once this
* threshold is reached, back pressure will be
* applied to the caller of mac_tx() (mac_tx() starts
* returning a cookie to indicate a blocked SRS).
* st_hiwat should always be lesser than or equal to
* st_max_q_cnt.
*/
uint32_t st_hiwat; /* mblk cnt to apply flow control */
uint32_t st_lowat; /* mblk cnt to relieve flow control */
uint32_t st_hiwat_cnt; /* times blocked for Tx descs */
mac_tx_stats_t st_stat;
mac_capab_aggr_t st_capab_aggr;
/*
* st_soft_rings is used as an array to store aggr Tx soft
* rings. When aggr_find_tx_ring() returns a pseudo ring,
* the associated soft ring has to be found. st_soft_rings
* array stores the soft ring associated with a pseudo Tx
* ring and it can be accessed using the pseudo ring
* index (mr_index). Note that the ring index is unique
* for each ring in a group.
*/
mac_soft_ring_t **st_soft_rings;
} mac_srs_tx_t;
/* Receive side Soft Ring Set */
typedef struct mac_srs_rx_s {
/*
* Upcall Function for fanout, Rx processing etc. Perhaps
* the same 3 members below can be used for Tx
* processing, but looking around, mac_rx_func_t has
* proliferated too much into various files at different
* places. I am leaving the consolidation battle for
* another day.
*/
mac_direct_rx_t sr_func; /* srs_lock */
void *sr_arg1; /* srs_lock */
mac_resource_handle_t sr_arg2; /* srs_lock */
mac_rx_func_t sr_lower_proc; /* Atomically changed */
uint32_t sr_poll_pkt_cnt;
uint32_t sr_poll_thres;
/* mblk cnt to apply flow control */
uint32_t sr_hiwat;
/* mblk cnt to relieve flow control */
uint32_t sr_lowat;
mac_rx_stats_t sr_stat;
/* Times polling was enabled */
uint32_t sr_poll_on;
/* Times polling was enabled by worker thread */
uint32_t sr_worker_poll_on;
/* Times polling was disabled */
uint32_t sr_poll_off;
/* Poll thread signalled count */
uint32_t sr_poll_thr_sig;
/* Poll thread busy */
uint32_t sr_poll_thr_busy;
/* SRS drains, stays in poll mode but doesn't poll */
uint32_t sr_poll_drain_no_poll;
/*
* SRS has nothing to do and no packets in H/W but
* there is a backlog in softrings. SRS stays in
* poll mode but doesn't do polling.
*/
uint32_t sr_poll_no_poll;
/* Active polling restarted */
uint32_t sr_below_hiwat;
/* Found packets in last poll so try and poll again */
uint32_t sr_poll_again;
/*
* Packets in queue but poll thread not allowed to process so
* signal the worker thread.
*/
uint32_t sr_poll_sig_worker;
/*
* Poll thread has nothing to do and H/W has nothing so
* reenable the interrupts.
*/
uint32_t sr_poll_intr_enable;
/*
* Poll thread has nothing to do and worker thread was already
* running so it can decide to reenable interrupt or poll again.
*/
uint32_t sr_poll_goto_sleep;
/* Worker thread goes back to draining the queue */
uint32_t sr_drain_again;
/* More Packets in queue so signal the poll thread to drain */
uint32_t sr_drain_poll_sig;
/* More Packets in queue so signal the worker thread to drain */
uint32_t sr_drain_worker_sig;
/* Poll thread is already running so worker has nothing to do */
uint32_t sr_drain_poll_running;
/* We have packets already queued so keep polling */
uint32_t sr_drain_keep_polling;
/* Drain is done and interrupts are reenabled */
uint32_t sr_drain_finish_intr;
/* Polling thread needs to schedule worker wakeup */
uint32_t sr_poll_worker_wakeup;
} mac_srs_rx_t;
/*
* mac_soft_ring_set_s:
* This is used both for Tx and Rx side. The srs_type identifies Rx or
* Tx type.
*
* Note that the structure is carefully crafted, with Rx elements coming
* first followed by Tx specific members. Future additions to this
* structure should follow the same guidelines.
*
* Rx-side notes:
* mac_rx_classify_flow_add() always creates a mac_soft_ring_set_t and fn_flow
* points to info from it (func = srs_lower_proc, arg = soft_ring_set). On
* interrupt path, srs_lower_proc does B/W adjustment and switch to polling mode
* (if poll capable) and feeds the packets to soft_ring_list via choosen
* fanout type (specified by srs_type). In poll mode, the poll thread which is
* also a pointer can pick up the packets and feed them to various
* soft_ring_list.
*
* The srs_type can either be protocol based or fanout based where fanout itelf
* can be various types
*
* The polling works by turning off interrupts as soon as a packets
* are queued on the soft ring set. Once the backlog is clear and poll
* thread return empty handed i.e. Rx ring doesn't have anything, the
* interrupt is turned back on. For this purpose we keep a separate
* srs_poll_pkt_cnt counter which tracks the packets queued between SRS
* and the soft rings as well. The counter is incremented when packets
* are queued and decremented when SRS processes them (in case it has
* no soft rings) or the soft ring process them. Its important that
* in case SRS has softrings, the decrement doesn't happen till the
* packet is processed by the soft rings since it takes very little time
* for SRS to queue packet from SRS to soft rings and it will keep
* bringing more packets in the system faster than soft rings can
* process them.
*
* Tx side notes:
* The srs structure acts as a serializer with a worker thread. The
* default behavior of srs though is to act as a pass-thru. The queues
* (srs_first, srs_last, srs_count) get used when Tx ring runs out of Tx
* descriptors or to enforce bandwidth limits.
*
* When multiple Tx rings are present, the SRS state will be set to
* SRS_FANOUT_OTH. Outgoing packets coming into mac_tx_srs_process()
* function will be fanned out to one of the Tx side soft rings based on
* a hint passed in mac_tx_srs_process(). Each soft ring, in turn, will
* be associated with a distinct h/w Tx ring.
*/
struct mac_soft_ring_set_s {
/*
* Common elements, common to both Rx and Tx SRS type.
* The following block of fields are protected by srs_lock
*/
kmutex_t srs_lock;
uint32_t srs_type;
uint32_t srs_state; /* state flags */
uint32_t srs_count;
mblk_t *srs_first; /* first mblk chain or NULL */
mblk_t *srs_last; /* last mblk chain or NULL */
kcondvar_t srs_async; /* cv for worker thread */
kcondvar_t srs_cv; /* cv for poll thread */
kcondvar_t srs_quiesce_done_cv; /* cv for removal */
timeout_id_t srs_tid; /* timeout id for pending timeout */
/*
* List of soft rings & processing function.
* The following block is protected by Rx quiescence.
* i.e. they can be changed only after quiescing the SRS
* Protected by srs_lock.
*/
mac_soft_ring_t *srs_soft_ring_head;
mac_soft_ring_t *srs_soft_ring_tail;
int srs_soft_ring_count;
int srs_soft_ring_quiesced_count;
int srs_soft_ring_condemned_count;
mac_soft_ring_t **srs_tcp_soft_rings;
int srs_tcp_ring_count;
mac_soft_ring_t **srs_udp_soft_rings;
int srs_udp_ring_count;
mac_soft_ring_t **srs_oth_soft_rings;
int srs_oth_ring_count;
/*
* srs_tx_soft_rings is used by tx_srs in
* when operating in multi tx ring mode.
*/
mac_soft_ring_t **srs_tx_soft_rings;
int srs_tx_ring_count;
/*
* Bandwidth control related members.
* They are common to both Rx- and Tx-side.
* Following protected by srs_lock
*/
mac_bw_ctl_t *srs_bw;
size_t srs_size; /* Size of packets queued in bytes */
pri_t srs_pri;
mac_soft_ring_set_t *srs_next; /* mac_srs_g_lock */
mac_soft_ring_set_t *srs_prev; /* mac_srs_g_lock */
/* Attribute specific drain func (BW ctl vs non-BW ctl) */
mac_srs_drain_proc_t srs_drain_func; /* Write once (WO) */
/*
* If the associated ring is exclusively used by a mac client, e.g.,
* an aggregation, this fields is used to keep a reference to the
* MAC client's pseudo ring.
*/
mac_resource_handle_t srs_mrh;
/*
* The following blocks are write once (WO) and valid for the life
* of the SRS
*/
struct mac_client_impl_s *srs_mcip; /* back ptr to mac client */
void *srs_flent; /* back ptr to flent */
mac_ring_t *srs_ring; /* Ring Descriptor */
/* Teardown, disable control ops */
kcondvar_t srs_client_cv; /* Client wait for the control op */
kthread_t *srs_worker; /* WO, worker thread */
kthread_t *srs_poll_thr; /* WO, poll thread */
uint_t srs_ind; /* Round Robin indx for picking up SR */
processorid_t srs_worker_cpuid; /* processor to bind to */
processorid_t srs_worker_cpuid_save; /* saved cpuid during offline */
processorid_t srs_poll_cpuid; /* processor to bind to */
processorid_t srs_poll_cpuid_save; /* saved cpuid during offline */
uint_t srs_fanout_state;
mac_cpus_t srs_cpu;
mac_srs_rx_t srs_rx;
mac_srs_tx_t srs_tx;
kstat_t *srs_ksp;
};
/*
* type flags - combination allowed to process and drain the queue
*/
#define ST_RING_WORKER_ONLY 0x0001 /* Worker thread only */
#define ST_RING_ANY 0x0002 /* Any thread can process the queue */
#define ST_RING_TCP 0x0004
#define ST_RING_UDP 0x0008
#define ST_RING_OTH 0x0010
#define ST_RING_BW_CTL 0x0020
#define ST_RING_TX 0x0040
/*
* State flags.
*/
#define S_RING_PROC 0x0001 /* being processed */
#define S_RING_BOUND 0x0002 /* Worker thread is bound to a cpu */
#define S_RING_BLOCK 0x0004 /* No Tx descs */
#define S_RING_TX_HIWAT 0x0008 /* Tx high watermark reached */
#define S_RING_WAKEUP_CLIENT 0x0010 /* flow ctrl, client wakeup needed */
#define S_RING_BLANK 0x0020 /* Has been put into polling mode */
#define S_RING_CLIENT_WAIT 0x0040 /* Client waiting for control op */
#define S_RING_CONDEMNED 0x0100 /* Being torn down */
#define S_RING_CONDEMNED_DONE 0x0200 /* Being torn down */
#define S_RING_QUIESCE 0x0400 /* No traffic flow, transient flag */
#define S_RING_QUIESCE_DONE 0x0800 /* No traffic flow, transient flag */
#define S_RING_RESTART 0x1000 /* Go back to normal traffic flow */
#define S_RING_ENQUEUED 0x2000 /* Pkts enqueued in Tx soft ring */
/*
* arguments for processors to bind to
*/
#define S_RING_BIND_NONE -1
/*
* defines for srs_type - identifies a link or a sub-flow
* and other static characteristics of a SRS like a tx
* srs, tcp only srs, etc.
*/
#define SRST_LINK 0x00000001
#define SRST_FLOW 0x00000002
#define SRST_NO_SOFT_RINGS 0x00000004
#define SRST_TCP_ONLY 0x00000008
#define SRST_FANOUT_PROTO 0x00000010
#define SRST_FANOUT_SRC_IP 0x00000020
#define SRST_FANOUT_OTH 0x00000040
#define SRST_DEFAULT_GRP 0x00000080
#define SRST_TX 0x00000100
#define SRST_BW_CONTROL 0x00000200
#define SRST_DIRECT_POLL 0x00000400
#define SRST_DLS_BYPASS 0x00001000
#define SRST_CLIENT_POLL_ENABLED 0x00002000
/*
* soft ring set flags. These bits are dynamic in nature and get
* applied to srs_state. They reflect the state of SRS at any
* point of time
*/
#define SRS_BLANK 0x00000001
#define SRS_WORKER_BOUND 0x00000002
#define SRS_POLL_BOUND 0x00000004
#define SRS_POLLING_CAPAB 0x00000008
#define SRS_PROC 0x00000010
#define SRS_GET_PKTS 0x00000020
#define SRS_POLLING 0x00000040
#define SRS_BW_ENFORCED 0x00000080
#define SRS_WORKER 0x00000100
#define SRS_ENQUEUED 0x00000200
#define SRS_ANY_PROCESS 0x00000400
#define SRS_PROC_FAST 0x00000800
#define SRS_POLL_PROC 0x00001000
#define SRS_TX_BLOCKED 0x00002000 /* out of Tx descs */
#define SRS_TX_HIWAT 0x00004000 /* Tx count exceeds hiwat */
#define SRS_TX_WAKEUP_CLIENT 0x00008000 /* Flow-ctl: wakeup client */
#define SRS_CLIENT_PROC 0x00010000
#define SRS_CLIENT_WAIT 0x00020000
#define SRS_QUIESCE 0x00040000
#define SRS_QUIESCE_DONE 0x00080000
#define SRS_CONDEMNED 0x00100000
#define SRS_CONDEMNED_DONE 0x00200000
#define SRS_POLL_THR_QUIESCED 0x00400000
#define SRS_RESTART 0x00800000
#define SRS_RESTART_DONE 0x01000000
#define SRS_POLL_THR_RESTART 0x02000000
#define SRS_IN_GLIST 0x04000000
#define SRS_POLL_THR_EXITED 0x08000000
#define SRS_QUIESCE_PERM 0x10000000
#define SRS_LATENCY_OPT 0x20000000
#define SRS_SOFTRING_QUEUE 0x40000000
#define SRS_QUIESCED(srs) (srs->srs_state & SRS_QUIESCE_DONE)
/*
* If the SRS_QUIESCE_PERM flag is set, the SRS worker thread will not be
* able to be restarted.
*/
#define SRS_QUIESCED_PERMANENT(srs) (srs->srs_state & SRS_QUIESCE_PERM)
/*
* soft ring set (SRS) Tx modes
*/
typedef enum {
SRS_TX_DEFAULT = 0,
SRS_TX_SERIALIZE,
SRS_TX_FANOUT,
SRS_TX_BW,
SRS_TX_BW_FANOUT,
SRS_TX_AGGR,
SRS_TX_BW_AGGR
} mac_tx_srs_mode_t;
/*
* SRS fanout states
*/
typedef enum {
SRS_FANOUT_UNINIT = 0,
SRS_FANOUT_INIT,
SRS_FANOUT_REINIT
} mac_srs_fanout_state_t;
/*
* Structure for dls statistics
*/
struct dls_kstats {
kstat_named_t dlss_soft_ring_pkt_drop;
};
extern struct dls_kstats dls_kstat;
#define DLS_BUMP_STAT(x, y) (dls_kstat.x.value.ui32 += y)
/* Turn dynamic polling off */
#define MAC_SRS_POLLING_OFF(mac_srs) { \
ASSERT(MUTEX_HELD(&(mac_srs)->srs_lock)); \
if (((mac_srs)->srs_state & (SRS_POLLING_CAPAB|SRS_POLLING)) == \
(SRS_POLLING_CAPAB|SRS_POLLING)) { \
(mac_srs)->srs_state &= ~SRS_POLLING; \
(void) mac_hwring_enable_intr((mac_ring_handle_t) \
(mac_srs)->srs_ring); \
(mac_srs)->srs_rx.sr_poll_off++; \
} \
}
#define MAC_COUNT_CHAIN(mac_srs, head, tail, cnt, sz) { \
mblk_t *tmp; \
boolean_t bw_ctl = B_FALSE; \
\
ASSERT((head) != NULL); \
cnt = 0; \
sz = 0; \
if ((mac_srs)->srs_type & SRST_BW_CONTROL) \
bw_ctl = B_TRUE; \
tmp = tail = (head); \
if ((head)->b_next == NULL) { \
cnt = 1; \
if (bw_ctl) \
sz += msgdsize(head); \
} else { \
while (tmp != NULL) { \
tail = tmp; \
cnt++; \
if (bw_ctl) \
sz += msgdsize(tmp); \
tmp = tmp->b_next; \
} \
} \
}
/*
* Decrement the cumulative packet count in SRS and its
* soft rings. If the srs_poll_pkt_cnt goes below lowat, then check
* if if the interface was left in a polling mode and no one
* is really processing the queue (to get the interface out
* of poll mode). If no one is processing the queue, then
* acquire the PROC and signal the poll thread to check the
* interface for packets and get the interface back to interrupt
* mode if nothing is found.
*/
#define MAC_UPDATE_SRS_COUNT_LOCKED(mac_srs, cnt) { \
mac_srs_rx_t *srs_rx = &(mac_srs)->srs_rx; \
ASSERT(MUTEX_HELD(&(mac_srs)->srs_lock)); \
\
srs_rx->sr_poll_pkt_cnt -= cnt; \
if ((srs_rx->sr_poll_pkt_cnt <= srs_rx->sr_poll_thres) && \
(((mac_srs)->srs_state & \
(SRS_POLLING|SRS_PROC|SRS_GET_PKTS)) == SRS_POLLING)) \
{ \
(mac_srs)->srs_state |= (SRS_PROC|SRS_GET_PKTS); \
cv_signal(&(mac_srs)->srs_cv); \
srs_rx->sr_below_hiwat++; \
} \
}
/*
* The following two macros are used to update the inbound packet and byte.
* count. The packet and byte count reflect the packets and bytes that are
* taken out of the SRS's queue, i.e. indicating they are being delivered.
* The srs_count and srs_size are updated in different locations as the
* srs_size is also used to take into account any bandwidth limits. The
* srs_size is updated only when a soft ring, if any, sends a packet up,
* as opposed to updating it when the SRS sends a packet to the SR, i.e.
* the srs_size reflects the packets in the SRS and SRs. These
* macros decrement the srs_size and srs_count and also increment the
* ipackets and ibytes stats resp.
*
* xxx-venu These are done under srs_lock, for now we still update
* mci_stat_ibytes/mci_stat_ipackets atomically, need to check if
* just updating them would be accurate enough.
*
* If we are updating these for a sub-flow SRS, then we need to also
* updated it's MAC client bandwidth info, if the MAC client is also
* bandwidth regulated.
*/
#define MAC_UPDATE_SRS_SIZE_LOCKED(srs, sz) { \
if ((srs)->srs_type & SRST_BW_CONTROL) { \
mutex_enter(&(srs)->srs_bw->mac_bw_lock); \
(srs)->srs_bw->mac_bw_sz -= (sz); \
(srs)->srs_bw->mac_bw_used += (sz); \
mutex_exit(&(srs)->srs_bw->mac_bw_lock); \
} \
}
#define MAC_TX_UPDATE_BW_INFO(srs, sz) { \
(srs)->srs_bw->mac_bw_sz -= (sz); \
(srs)->srs_bw->mac_bw_used += (sz); \
}
#define MAC_TX_SOFT_RINGS(mac_srs) ((mac_srs)->srs_tx_ring_count >= 1)
/* Soft ring flags for teardown */
#define SRS_POLL_THR_OWNER (SRS_PROC | SRS_POLLING | SRS_GET_PKTS)
#define SRS_PAUSE (SRS_CONDEMNED | SRS_QUIESCE)
#define S_RING_PAUSE (S_RING_CONDEMNED | S_RING_QUIESCE)
/* Soft rings */
extern void mac_soft_ring_init(void);
extern void mac_soft_ring_finish(void);
extern void mac_fanout_setup(mac_client_impl_t *, flow_entry_t *,
mac_resource_props_t *, mac_direct_rx_t, void *, mac_resource_handle_t,
cpupart_t *);
extern void mac_soft_ring_worker_wakeup(mac_soft_ring_t *);
extern void mac_soft_ring_blank(void *, time_t, uint_t, int);
extern mblk_t *mac_soft_ring_poll(mac_soft_ring_t *, size_t);
extern void mac_soft_ring_destroy(mac_soft_ring_t *);
extern void mac_soft_ring_dls_bypass(void *, mac_direct_rx_t, void *);
/* Rx SRS */
extern mac_soft_ring_set_t *mac_srs_create(struct mac_client_impl_s *,
flow_entry_t *, uint32_t, mac_direct_rx_t, void *, mac_resource_handle_t,
mac_ring_t *);
extern void mac_srs_free(mac_soft_ring_set_t *);
extern void mac_srs_signal(mac_soft_ring_set_t *, uint_t);
extern cpu_t *mac_srs_bind(mac_soft_ring_set_t *, processorid_t);
extern void mac_rx_srs_retarget_intr(mac_soft_ring_set_t *, processorid_t);
extern void mac_tx_srs_retarget_intr(mac_soft_ring_set_t *);
extern void mac_srs_quiesce_initiate(mac_soft_ring_set_t *);
extern void mac_srs_client_poll_enable(struct mac_client_impl_s *,
mac_soft_ring_set_t *);
extern void mac_srs_client_poll_disable(struct mac_client_impl_s *,
mac_soft_ring_set_t *);
extern void mac_srs_client_poll_quiesce(struct mac_client_impl_s *,
mac_soft_ring_set_t *);
extern void mac_srs_client_poll_restart(struct mac_client_impl_s *,
mac_soft_ring_set_t *);
extern void mac_rx_srs_quiesce(mac_soft_ring_set_t *, uint_t);
extern void mac_rx_srs_restart(mac_soft_ring_set_t *);
extern void mac_rx_srs_subflow_process(void *, mac_resource_handle_t, mblk_t *,
boolean_t);
extern void mac_tx_srs_quiesce(mac_soft_ring_set_t *, uint_t);
/* Tx SRS, Tx softring */
extern void mac_tx_srs_wakeup(mac_soft_ring_set_t *, mac_ring_handle_t);
extern void mac_tx_srs_setup(struct mac_client_impl_s *, flow_entry_t *);
extern mac_tx_func_t mac_tx_get_func(uint32_t);
extern mblk_t *mac_tx_send(mac_client_handle_t, mac_ring_handle_t, mblk_t *,
mac_tx_stats_t *);
extern boolean_t mac_tx_srs_ring_present(mac_soft_ring_set_t *, mac_ring_t *);
extern mac_soft_ring_t *mac_tx_srs_get_soft_ring(mac_soft_ring_set_t *,
mac_ring_t *);
extern void mac_tx_srs_add_ring(mac_soft_ring_set_t *, mac_ring_t *);
extern void mac_tx_srs_del_ring(mac_soft_ring_set_t *, mac_ring_t *);
extern mac_tx_cookie_t mac_tx_srs_no_desc(mac_soft_ring_set_t *, mblk_t *,
uint16_t, mblk_t **);
/* Subflow specific stuff */
extern int mac_srs_flow_create(struct mac_client_impl_s *, flow_entry_t *,
mac_resource_props_t *, int, int, mac_direct_rx_t);
extern void mac_srs_update_bwlimit(flow_entry_t *, mac_resource_props_t *);
extern void mac_srs_adjust_subflow_bwlimit(struct mac_client_impl_s *);
extern void mac_srs_update_drv(struct mac_client_impl_s *);
extern void mac_update_srs_priority(mac_soft_ring_set_t *, pri_t);
extern void mac_client_update_classifier(mac_client_impl_t *, boolean_t);
extern void mac_soft_ring_intr_enable(void *);
extern boolean_t mac_soft_ring_intr_disable(void *);
extern mac_soft_ring_t *mac_soft_ring_create(int, clock_t, uint16_t,
pri_t, mac_client_impl_t *, mac_soft_ring_set_t *,
processorid_t, mac_direct_rx_t, void *, mac_resource_handle_t);
extern cpu_t *mac_soft_ring_bind(mac_soft_ring_t *, processorid_t);
extern void mac_soft_ring_unbind(mac_soft_ring_t *);
extern void mac_soft_ring_free(mac_soft_ring_t *);
extern void mac_soft_ring_signal(mac_soft_ring_t *, uint_t);
extern void mac_rx_soft_ring_process(mac_client_impl_t *, mac_soft_ring_t *,
mblk_t *, mblk_t *, int, size_t);
extern mac_tx_cookie_t mac_tx_soft_ring_process(mac_soft_ring_t *,
mblk_t *, uint16_t, mblk_t **);
extern void mac_srs_worker_quiesce(mac_soft_ring_set_t *);
extern void mac_srs_worker_restart(mac_soft_ring_set_t *);
extern void mac_rx_attach_flow_srs(mac_impl_t *, flow_entry_t *,
mac_soft_ring_set_t *, mac_ring_t *, mac_classify_type_t);
extern void mac_rx_srs_drain_bw(mac_soft_ring_set_t *, uint_t);
extern void mac_rx_srs_drain(mac_soft_ring_set_t *, uint_t);
extern void mac_rx_srs_process(void *, mac_resource_handle_t, mblk_t *,
boolean_t);
extern void mac_srs_worker(mac_soft_ring_set_t *);
extern void mac_rx_srs_poll_ring(mac_soft_ring_set_t *);
extern void mac_tx_srs_drain(mac_soft_ring_set_t *, uint_t);
extern void mac_tx_srs_restart(mac_soft_ring_set_t *);
extern void mac_rx_srs_remove(mac_soft_ring_set_t *);
#ifdef __cplusplus
}
#endif
#endif /* _SYS_MAC_SOFT_RING_H */