187 lines
6.9 KiB
C
187 lines
6.9 KiB
C
/*
|
|
* Copyright (c) 2006 QLogic, Inc. All rights reserved.
|
|
* Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
|
|
*
|
|
* This software is available to you under a choice of one of two
|
|
* licenses. You may choose to be licensed under the terms of the GNU
|
|
* General Public License (GPL) Version 2, available from the file
|
|
* COPYING in the main directory of this source tree, or the
|
|
* OpenIB.org BSD license below:
|
|
*
|
|
* Redistribution and use in source and binary forms, with or
|
|
* without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* - Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer.
|
|
*
|
|
* - Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#ifndef _IPATH_LAYER_H
|
|
#define _IPATH_LAYER_H
|
|
|
|
/*
|
|
* This header file is for symbols shared between the infinipath driver
|
|
* and drivers layered upon it (such as ipath).
|
|
*/
|
|
|
|
struct sk_buff;
|
|
struct ipath_sge_state;
|
|
struct ipath_devdata;
|
|
struct ether_header;
|
|
|
|
struct ipath_layer_counters {
|
|
u64 symbol_error_counter;
|
|
u64 link_error_recovery_counter;
|
|
u64 link_downed_counter;
|
|
u64 port_rcv_errors;
|
|
u64 port_rcv_remphys_errors;
|
|
u64 port_xmit_discards;
|
|
u64 port_xmit_data;
|
|
u64 port_rcv_data;
|
|
u64 port_xmit_packets;
|
|
u64 port_rcv_packets;
|
|
u32 local_link_integrity_errors;
|
|
u32 excessive_buffer_overrun_errors;
|
|
};
|
|
|
|
/*
|
|
* A segment is a linear region of low physical memory.
|
|
* XXX Maybe we should use phys addr here and kmap()/kunmap().
|
|
* Used by the verbs layer.
|
|
*/
|
|
struct ipath_seg {
|
|
void *vaddr;
|
|
size_t length;
|
|
};
|
|
|
|
/* The number of ipath_segs that fit in a page. */
|
|
#define IPATH_SEGSZ (PAGE_SIZE / sizeof (struct ipath_seg))
|
|
|
|
struct ipath_segarray {
|
|
struct ipath_seg segs[IPATH_SEGSZ];
|
|
};
|
|
|
|
struct ipath_mregion {
|
|
u64 user_base; /* User's address for this region */
|
|
u64 iova; /* IB start address of this region */
|
|
size_t length;
|
|
u32 lkey;
|
|
u32 offset; /* offset (bytes) to start of region */
|
|
int access_flags;
|
|
u32 max_segs; /* number of ipath_segs in all the arrays */
|
|
u32 mapsz; /* size of the map array */
|
|
struct ipath_segarray *map[0]; /* the segments */
|
|
};
|
|
|
|
/*
|
|
* These keep track of the copy progress within a memory region.
|
|
* Used by the verbs layer.
|
|
*/
|
|
struct ipath_sge {
|
|
struct ipath_mregion *mr;
|
|
void *vaddr; /* current pointer into the segment */
|
|
u32 sge_length; /* length of the SGE */
|
|
u32 length; /* remaining length of the segment */
|
|
u16 m; /* current index: mr->map[m] */
|
|
u16 n; /* current index: mr->map[m]->segs[n] */
|
|
};
|
|
|
|
struct ipath_sge_state {
|
|
struct ipath_sge *sg_list; /* next SGE to be used if any */
|
|
struct ipath_sge sge; /* progress state for the current SGE */
|
|
u8 num_sge;
|
|
};
|
|
|
|
int ipath_layer_register(void *(*l_add)(int, struct ipath_devdata *),
|
|
void (*l_remove)(void *),
|
|
int (*l_intr)(void *, u32),
|
|
int (*l_rcv)(void *, void *,
|
|
struct sk_buff *),
|
|
u16 rcv_opcode,
|
|
int (*l_rcv_lid)(void *, void *));
|
|
int ipath_verbs_register(void *(*l_add)(int, struct ipath_devdata *),
|
|
void (*l_remove)(void *arg),
|
|
int (*l_piobufavail)(void *arg),
|
|
void (*l_rcv)(void *arg, void *rhdr,
|
|
void *data, u32 tlen),
|
|
void (*l_timer_cb)(void *arg));
|
|
void ipath_layer_unregister(void);
|
|
void ipath_verbs_unregister(void);
|
|
int ipath_layer_open(struct ipath_devdata *, u32 * pktmax);
|
|
u16 ipath_layer_get_lid(struct ipath_devdata *dd);
|
|
int ipath_layer_get_mac(struct ipath_devdata *dd, u8 *);
|
|
u16 ipath_layer_get_bcast(struct ipath_devdata *dd);
|
|
u32 ipath_layer_get_cr_errpkey(struct ipath_devdata *dd);
|
|
int ipath_layer_set_linkstate(struct ipath_devdata *dd, u8 state);
|
|
int ipath_layer_set_mtu(struct ipath_devdata *, u16);
|
|
int ipath_set_lid(struct ipath_devdata *, u32, u8);
|
|
int ipath_layer_send_hdr(struct ipath_devdata *dd,
|
|
struct ether_header *hdr);
|
|
int ipath_verbs_send(struct ipath_devdata *dd, u32 hdrwords,
|
|
u32 * hdr, u32 len, struct ipath_sge_state *ss);
|
|
int ipath_layer_set_piointbufavail_int(struct ipath_devdata *dd);
|
|
int ipath_layer_get_boardname(struct ipath_devdata *dd, char *name,
|
|
size_t namelen);
|
|
int ipath_layer_snapshot_counters(struct ipath_devdata *dd, u64 *swords,
|
|
u64 *rwords, u64 *spkts, u64 *rpkts,
|
|
u64 *xmit_wait);
|
|
int ipath_layer_get_counters(struct ipath_devdata *dd,
|
|
struct ipath_layer_counters *cntrs);
|
|
int ipath_layer_want_buffer(struct ipath_devdata *dd);
|
|
int ipath_layer_set_guid(struct ipath_devdata *, __be64 guid);
|
|
__be64 ipath_layer_get_guid(struct ipath_devdata *);
|
|
u32 ipath_layer_get_nguid(struct ipath_devdata *);
|
|
u32 ipath_layer_get_majrev(struct ipath_devdata *);
|
|
u32 ipath_layer_get_minrev(struct ipath_devdata *);
|
|
u32 ipath_layer_get_pcirev(struct ipath_devdata *);
|
|
u32 ipath_layer_get_flags(struct ipath_devdata *dd);
|
|
struct device *ipath_layer_get_device(struct ipath_devdata *dd);
|
|
u16 ipath_layer_get_deviceid(struct ipath_devdata *dd);
|
|
u32 ipath_layer_get_vendorid(struct ipath_devdata *);
|
|
u64 ipath_layer_get_lastibcstat(struct ipath_devdata *dd);
|
|
u32 ipath_layer_get_ibmtu(struct ipath_devdata *dd);
|
|
int ipath_layer_enable_timer(struct ipath_devdata *dd);
|
|
int ipath_layer_disable_timer(struct ipath_devdata *dd);
|
|
int ipath_layer_set_verbs_flags(struct ipath_devdata *dd, unsigned flags);
|
|
unsigned ipath_layer_get_npkeys(struct ipath_devdata *dd);
|
|
unsigned ipath_layer_get_pkey(struct ipath_devdata *dd, unsigned index);
|
|
int ipath_layer_get_pkeys(struct ipath_devdata *dd, u16 *pkeys);
|
|
int ipath_layer_set_pkeys(struct ipath_devdata *dd, u16 *pkeys);
|
|
int ipath_layer_get_linkdowndefaultstate(struct ipath_devdata *dd);
|
|
int ipath_layer_set_linkdowndefaultstate(struct ipath_devdata *dd,
|
|
int sleep);
|
|
int ipath_layer_get_phyerrthreshold(struct ipath_devdata *dd);
|
|
int ipath_layer_set_phyerrthreshold(struct ipath_devdata *dd, unsigned n);
|
|
int ipath_layer_get_overrunthreshold(struct ipath_devdata *dd);
|
|
int ipath_layer_set_overrunthreshold(struct ipath_devdata *dd, unsigned n);
|
|
u32 ipath_layer_get_rcvhdrentsize(struct ipath_devdata *dd);
|
|
|
|
/* ipath_ether interrupt values */
|
|
#define IPATH_LAYER_INT_IF_UP 0x2
|
|
#define IPATH_LAYER_INT_IF_DOWN 0x4
|
|
#define IPATH_LAYER_INT_LID 0x8
|
|
#define IPATH_LAYER_INT_SEND_CONTINUE 0x10
|
|
#define IPATH_LAYER_INT_BCAST 0x40
|
|
|
|
/* _verbs_layer.l_flags */
|
|
#define IPATH_VERBS_KERNEL_SMA 0x1
|
|
|
|
extern unsigned ipath_debug; /* debugging bit mask */
|
|
|
|
#endif /* _IPATH_LAYER_H */
|