| /* |
| * 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_sps_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 */ |