178 lines
6.4 KiB
C
178 lines
6.4 KiB
C
|
/*
|
||
|
|
* Header file describing the flow rings DHD interfaces.
|
||
|
|
*
|
||
|
|
* Provides type definitions and function prototypes used to create, delete and manage
|
||
|
|
*
|
||
|
|
* flow rings at high level
|
||
|
|
*
|
||
|
|
* Copyright (C) 1999-2015, Broadcom Corporation
|
||
|
|
*
|
||
|
|
* Unless you and Broadcom execute a separate written software license
|
||
|
|
* agreement governing use of this software, this software is licensed to you
|
||
|
|
* under the terms of the GNU General Public License version 2 (the "GPL"),
|
||
|
|
* available at http://www.broadcom.com/licenses/GPLv2.php, with the
|
||
|
|
* following added to such license:
|
||
|
|
*
|
||
|
|
* As a special exception, the copyright holders of this software give you
|
||
|
|
* permission to link this software with independent modules, and to copy and
|
||
|
|
* distribute the resulting executable under terms of your choice, provided that
|
||
|
|
* you also meet, for each linked independent module, the terms and conditions of
|
||
|
|
* the license of that module. An independent module is a module which is not
|
||
|
|
* derived from this software. The special exception does not apply to any
|
||
|
|
* modifications of the software.
|
||
|
|
*
|
||
|
|
* Notwithstanding the above, under no circumstances may you combine this
|
||
|
|
* software in any way with any other Broadcom software provided under a license
|
||
|
|
* other than the GPL, without Broadcom's express prior written consent.
|
||
|
|
*
|
||
|
|
* $Id: dhd_flowrings.h jaganlv $
|
||
|
|
*/
|
||
|
|
|
||
|
|
/****************
|
||
|
|
* Common types *
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _dhd_flowrings_h_
|
||
|
|
#define _dhd_flowrings_h_
|
||
|
|
|
||
|
|
/* Max pkts held in a flow ring's backup queue */
|
||
|
|
#define FLOW_RING_QUEUE_THRESHOLD (2048)
|
||
|
|
|
||
|
|
/* Number of H2D common rings : PCIE Spec Rev? */
|
||
|
|
#define FLOW_RING_COMMON 2
|
||
|
|
|
||
|
|
#define FLOWID_INVALID (ID16_INVALID)
|
||
|
|
#define FLOWID_RESERVED (FLOW_RING_COMMON)
|
||
|
|
|
||
|
|
#define FLOW_RING_STATUS_OPEN 0
|
||
|
|
#define FLOW_RING_STATUS_PENDING 1
|
||
|
|
#define FLOW_RING_STATUS_CLOSED 2
|
||
|
|
#define FLOW_RING_STATUS_DELETE_PENDING 3
|
||
|
|
#define FLOW_RING_STATUS_FLUSH_PENDING 4
|
||
|
|
|
||
|
|
#define DHD_FLOWRING_RX_BUFPOST_PKTSZ 2048
|
||
|
|
|
||
|
|
#define DHD_FLOW_PRIO_AC_MAP 0
|
||
|
|
#define DHD_FLOW_PRIO_TID_MAP 1
|
||
|
|
|
||
|
|
|
||
|
|
/* Pkttag not compatible with PROP_TXSTATUS or WLFC */
|
||
|
|
typedef struct dhd_pkttag_fr {
|
||
|
|
uint16 flowid;
|
||
|
|
int dataoff;
|
||
|
|
} dhd_pkttag_fr_t;
|
||
|
|
|
||
|
|
#define DHD_PKTTAG_SET_FLOWID(tag, flow) ((tag)->flowid = (uint16)(flow))
|
||
|
|
#define DHD_PKTTAG_SET_DATAOFF(tag, offset) ((tag)->dataoff = (int)(offset))
|
||
|
|
|
||
|
|
#define DHD_PKTTAG_FLOWID(tag) ((tag)->flowid)
|
||
|
|
#define DHD_PKTTAG_DATAOFF(tag) ((tag)->dataoff)
|
||
|
|
|
||
|
|
/* Hashing a MacAddress for lkup into a per interface flow hash table */
|
||
|
|
#define DHD_FLOWRING_HASH_SIZE 256
|
||
|
|
#define DHD_FLOWRING_HASHINDEX(ea, prio) \
|
||
|
|
((((uint8 *)(ea))[3] ^ ((uint8 *)(ea))[4] ^ ((uint8 *)(ea))[5] ^ ((uint8)(prio))) \
|
||
|
|
% DHD_FLOWRING_HASH_SIZE)
|
||
|
|
|
||
|
|
#define DHD_IF_ROLE(pub, idx) (((if_flow_lkup_t *)(pub)->if_flow_lkup)[idx].role)
|
||
|
|
#define DHD_IF_ROLE_AP(pub, idx) (DHD_IF_ROLE(pub, idx) == WLC_E_IF_ROLE_AP)
|
||
|
|
#define DHD_IF_ROLE_P2PGO(pub, idx) (DHD_IF_ROLE(pub, idx) == WLC_E_IF_ROLE_P2P_GO)
|
||
|
|
#define DHD_FLOW_RING(dhdp, flowid) \
|
||
|
|
(flow_ring_node_t *)&(((flow_ring_node_t *)((dhdp)->flow_ring_table))[flowid])
|
||
|
|
|
||
|
|
struct flow_queue;
|
||
|
|
|
||
|
|
/* Flow Ring Queue Enqueue overflow callback */
|
||
|
|
typedef int (*flow_queue_cb_t)(struct flow_queue * queue, void * pkt);
|
||
|
|
|
||
|
|
typedef struct flow_queue {
|
||
|
|
dll_t list; /* manage a flowring queue in a dll */
|
||
|
|
void * head; /* first packet in the queue */
|
||
|
|
void * tail; /* last packet in the queue */
|
||
|
|
uint16 len; /* number of packets in the queue */
|
||
|
|
uint16 max; /* maximum number of packets, queue may hold */
|
||
|
|
uint32 failures; /* enqueue failures due to queue overflow */
|
||
|
|
flow_queue_cb_t cb; /* callback invoked on threshold crossing */
|
||
|
|
} flow_queue_t;
|
||
|
|
|
||
|
|
#define flow_queue_len(queue) ((int)(queue)->len)
|
||
|
|
#define flow_queue_max(queue) ((int)(queue)->max)
|
||
|
|
#define flow_queue_avail(queue) ((int)((queue)->max - (queue)->len))
|
||
|
|
#define flow_queue_full(queue) ((queue)->len >= (queue)->max)
|
||
|
|
#define flow_queue_empty(queue) ((queue)->len == 0)
|
||
|
|
|
||
|
|
typedef struct flow_info {
|
||
|
|
uint8 tid;
|
||
|
|
uint8 ifindex;
|
||
|
|
char sa[ETHER_ADDR_LEN];
|
||
|
|
char da[ETHER_ADDR_LEN];
|
||
|
|
} flow_info_t;
|
||
|
|
|
||
|
|
typedef struct flow_ring_node {
|
||
|
|
dll_t list; /* manage a constructed flowring in a dll, must be at first place */
|
||
|
|
flow_queue_t queue;
|
||
|
|
bool active;
|
||
|
|
uint8 status;
|
||
|
|
uint16 flowid;
|
||
|
|
flow_info_t flow_info;
|
||
|
|
void *prot_info;
|
||
|
|
void *lock; /* lock for flowring access protection */
|
||
|
|
} flow_ring_node_t;
|
||
|
|
typedef flow_ring_node_t flow_ring_table_t;
|
||
|
|
|
||
|
|
typedef struct flow_hash_info {
|
||
|
|
uint16 flowid;
|
||
|
|
flow_info_t flow_info;
|
||
|
|
struct flow_hash_info *next;
|
||
|
|
} flow_hash_info_t;
|
||
|
|
|
||
|
|
typedef struct if_flow_lkup {
|
||
|
|
bool status;
|
||
|
|
uint8 role; /* Interface role: STA/AP */
|
||
|
|
flow_hash_info_t *fl_hash[DHD_FLOWRING_HASH_SIZE]; /* Lkup Hash table */
|
||
|
|
} if_flow_lkup_t;
|
||
|
|
|
||
|
|
static INLINE flow_ring_node_t *
|
||
|
|
dhd_constlist_to_flowring(dll_t *item)
|
||
|
|
{
|
||
|
|
return ((flow_ring_node_t *)item);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Exported API */
|
||
|
|
|
||
|
|
/* Flow ring's queue management functions */
|
||
|
|
extern void dhd_flow_queue_init(dhd_pub_t *dhdp, flow_queue_t *queue, int max);
|
||
|
|
extern void dhd_flow_queue_register(flow_queue_t *queue, flow_queue_cb_t cb);
|
||
|
|
extern int dhd_flow_queue_enqueue(dhd_pub_t *dhdp, flow_queue_t *queue, void *pkt);
|
||
|
|
extern void * dhd_flow_queue_dequeue(dhd_pub_t *dhdp, flow_queue_t *queue);
|
||
|
|
extern void dhd_flow_queue_reinsert(dhd_pub_t *dhdp, flow_queue_t *queue, void *pkt);
|
||
|
|
|
||
|
|
extern int dhd_flow_rings_init(dhd_pub_t *dhdp, uint32 num_flow_rings);
|
||
|
|
|
||
|
|
extern void dhd_flow_rings_deinit(dhd_pub_t *dhdp);
|
||
|
|
|
||
|
|
extern uint16 dhd_flowid_find(dhd_pub_t *dhdp, uint8 ifindex, uint8 prio, char *sa, char *da);
|
||
|
|
|
||
|
|
extern int dhd_flowid_update(dhd_pub_t *dhdp, uint8 ifindex, uint8 prio,
|
||
|
|
void *pktbuf);
|
||
|
|
|
||
|
|
extern void dhd_flowid_free(dhd_pub_t *dhdp, uint8 ifindex, uint16 flowid);
|
||
|
|
|
||
|
|
extern void dhd_flow_rings_delete(dhd_pub_t *dhdp, uint8 ifindex);
|
||
|
|
|
||
|
|
extern void dhd_flow_rings_delete_for_peer(dhd_pub_t *dhdp, uint8 ifindex,
|
||
|
|
char *addr);
|
||
|
|
|
||
|
|
/* Handle Interface ADD, DEL operations */
|
||
|
|
extern void dhd_update_interface_flow_info(dhd_pub_t *dhdp, uint8 ifindex,
|
||
|
|
uint8 op, uint8 role);
|
||
|
|
|
||
|
|
/* Handle a STA interface link status update */
|
||
|
|
extern int dhd_update_interface_link_status(dhd_pub_t *dhdp, uint8 ifindex,
|
||
|
|
uint8 status);
|
||
|
|
extern int dhd_flow_prio_map(dhd_pub_t *dhd, uint8 *map, bool set);
|
||
|
|
extern int dhd_update_flow_prio_map(dhd_pub_t *dhdp, uint8 map);
|
||
|
|
|
||
|
|
extern uint8 dhd_flow_rings_ifindex2role(dhd_pub_t *dhdp, uint8 ifindex);
|
||
|
|
#endif /* _dhd_flowrings_h_ */
|