1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3*4882a593Smuzhiyun * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
4*4882a593Smuzhiyun * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * This software is available to you under a choice of one of two
7*4882a593Smuzhiyun * licenses. You may choose to be licensed under the terms of the GNU
8*4882a593Smuzhiyun * General Public License (GPL) Version 2, available from the file
9*4882a593Smuzhiyun * COPYING in the main directory of this source tree, or the
10*4882a593Smuzhiyun * OpenIB.org BSD license below:
11*4882a593Smuzhiyun *
12*4882a593Smuzhiyun * Redistribution and use in source and binary forms, with or
13*4882a593Smuzhiyun * without modification, are permitted provided that the following
14*4882a593Smuzhiyun * conditions are met:
15*4882a593Smuzhiyun *
16*4882a593Smuzhiyun * - Redistributions of source code must retain the above
17*4882a593Smuzhiyun * copyright notice, this list of conditions and the following
18*4882a593Smuzhiyun * disclaimer.
19*4882a593Smuzhiyun *
20*4882a593Smuzhiyun * - Redistributions in binary form must reproduce the above
21*4882a593Smuzhiyun * copyright notice, this list of conditions and the following
22*4882a593Smuzhiyun * disclaimer in the documentation and/or other materials
23*4882a593Smuzhiyun * provided with the distribution.
24*4882a593Smuzhiyun *
25*4882a593Smuzhiyun * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26*4882a593Smuzhiyun * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27*4882a593Smuzhiyun * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28*4882a593Smuzhiyun * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29*4882a593Smuzhiyun * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30*4882a593Smuzhiyun * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31*4882a593Smuzhiyun * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32*4882a593Smuzhiyun * SOFTWARE.
33*4882a593Smuzhiyun */
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun #ifndef _IPOIB_H
36*4882a593Smuzhiyun #define _IPOIB_H
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun #include <linux/list.h>
39*4882a593Smuzhiyun #include <linux/skbuff.h>
40*4882a593Smuzhiyun #include <linux/netdevice.h>
41*4882a593Smuzhiyun #include <linux/workqueue.h>
42*4882a593Smuzhiyun #include <linux/kref.h>
43*4882a593Smuzhiyun #include <linux/if_infiniband.h>
44*4882a593Smuzhiyun #include <linux/mutex.h>
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun #include <net/neighbour.h>
47*4882a593Smuzhiyun #include <net/sch_generic.h>
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun #include <linux/atomic.h>
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun #include <rdma/ib_verbs.h>
52*4882a593Smuzhiyun #include <rdma/ib_pack.h>
53*4882a593Smuzhiyun #include <rdma/ib_sa.h>
54*4882a593Smuzhiyun #include <linux/sched.h>
55*4882a593Smuzhiyun /* constants */
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun enum ipoib_flush_level {
58*4882a593Smuzhiyun IPOIB_FLUSH_LIGHT,
59*4882a593Smuzhiyun IPOIB_FLUSH_NORMAL,
60*4882a593Smuzhiyun IPOIB_FLUSH_HEAVY
61*4882a593Smuzhiyun };
62*4882a593Smuzhiyun
63*4882a593Smuzhiyun enum {
64*4882a593Smuzhiyun IPOIB_ENCAP_LEN = 4,
65*4882a593Smuzhiyun IPOIB_PSEUDO_LEN = 20,
66*4882a593Smuzhiyun IPOIB_HARD_LEN = IPOIB_ENCAP_LEN + IPOIB_PSEUDO_LEN,
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN,
69*4882a593Smuzhiyun IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */
72*4882a593Smuzhiyun IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN,
73*4882a593Smuzhiyun IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE,
74*4882a593Smuzhiyun IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE,
75*4882a593Smuzhiyun IPOIB_RX_RING_SIZE = 256,
76*4882a593Smuzhiyun IPOIB_TX_RING_SIZE = 128,
77*4882a593Smuzhiyun IPOIB_MAX_QUEUE_SIZE = 8192,
78*4882a593Smuzhiyun IPOIB_MIN_QUEUE_SIZE = 2,
79*4882a593Smuzhiyun IPOIB_CM_MAX_CONN_QP = 4096,
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun IPOIB_NUM_WC = 4,
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun IPOIB_MAX_PATH_REC_QUEUE = 3,
84*4882a593Smuzhiyun IPOIB_MAX_MCAST_QUEUE = 64,
85*4882a593Smuzhiyun
86*4882a593Smuzhiyun IPOIB_FLAG_OPER_UP = 0,
87*4882a593Smuzhiyun IPOIB_FLAG_INITIALIZED = 1,
88*4882a593Smuzhiyun IPOIB_FLAG_ADMIN_UP = 2,
89*4882a593Smuzhiyun IPOIB_PKEY_ASSIGNED = 3,
90*4882a593Smuzhiyun IPOIB_FLAG_SUBINTERFACE = 5,
91*4882a593Smuzhiyun IPOIB_STOP_REAPER = 7,
92*4882a593Smuzhiyun IPOIB_FLAG_ADMIN_CM = 9,
93*4882a593Smuzhiyun IPOIB_FLAG_UMCAST = 10,
94*4882a593Smuzhiyun IPOIB_NEIGH_TBL_FLUSH = 12,
95*4882a593Smuzhiyun IPOIB_FLAG_DEV_ADDR_SET = 13,
96*4882a593Smuzhiyun IPOIB_FLAG_DEV_ADDR_CTRL = 14,
97*4882a593Smuzhiyun
98*4882a593Smuzhiyun IPOIB_MAX_BACKOFF_SECONDS = 16,
99*4882a593Smuzhiyun
100*4882a593Smuzhiyun IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
101*4882a593Smuzhiyun IPOIB_MCAST_FLAG_SENDONLY = 1,
102*4882a593Smuzhiyun /*
103*4882a593Smuzhiyun * For IPOIB_MCAST_FLAG_BUSY
104*4882a593Smuzhiyun * When set, in flight join and mcast->mc is unreliable
105*4882a593Smuzhiyun * When clear and mcast->mc IS_ERR_OR_NULL, need to restart or
106*4882a593Smuzhiyun * haven't started yet
107*4882a593Smuzhiyun * When clear and mcast->mc is valid pointer, join was successful
108*4882a593Smuzhiyun */
109*4882a593Smuzhiyun IPOIB_MCAST_FLAG_BUSY = 2,
110*4882a593Smuzhiyun IPOIB_MCAST_FLAG_ATTACHED = 3,
111*4882a593Smuzhiyun
112*4882a593Smuzhiyun MAX_SEND_CQE = 64,
113*4882a593Smuzhiyun IPOIB_CM_COPYBREAK = 256,
114*4882a593Smuzhiyun
115*4882a593Smuzhiyun IPOIB_NON_CHILD = 0,
116*4882a593Smuzhiyun IPOIB_LEGACY_CHILD = 1,
117*4882a593Smuzhiyun IPOIB_RTNL_CHILD = 2,
118*4882a593Smuzhiyun };
119*4882a593Smuzhiyun
120*4882a593Smuzhiyun #define IPOIB_OP_RECV (1ul << 31)
121*4882a593Smuzhiyun #ifdef CONFIG_INFINIBAND_IPOIB_CM
122*4882a593Smuzhiyun #define IPOIB_OP_CM (1ul << 30)
123*4882a593Smuzhiyun #else
124*4882a593Smuzhiyun #define IPOIB_OP_CM (0)
125*4882a593Smuzhiyun #endif
126*4882a593Smuzhiyun
127*4882a593Smuzhiyun #define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF))
128*4882a593Smuzhiyun
129*4882a593Smuzhiyun /* structs */
130*4882a593Smuzhiyun
131*4882a593Smuzhiyun struct ipoib_header {
132*4882a593Smuzhiyun __be16 proto;
133*4882a593Smuzhiyun u16 reserved;
134*4882a593Smuzhiyun };
135*4882a593Smuzhiyun
136*4882a593Smuzhiyun struct ipoib_pseudo_header {
137*4882a593Smuzhiyun u8 hwaddr[INFINIBAND_ALEN];
138*4882a593Smuzhiyun };
139*4882a593Smuzhiyun
skb_add_pseudo_hdr(struct sk_buff * skb)140*4882a593Smuzhiyun static inline void skb_add_pseudo_hdr(struct sk_buff *skb)
141*4882a593Smuzhiyun {
142*4882a593Smuzhiyun char *data = skb_push(skb, IPOIB_PSEUDO_LEN);
143*4882a593Smuzhiyun
144*4882a593Smuzhiyun /*
145*4882a593Smuzhiyun * only the ipoib header is present now, make room for a dummy
146*4882a593Smuzhiyun * pseudo header and set skb field accordingly
147*4882a593Smuzhiyun */
148*4882a593Smuzhiyun memset(data, 0, IPOIB_PSEUDO_LEN);
149*4882a593Smuzhiyun skb_reset_mac_header(skb);
150*4882a593Smuzhiyun skb_pull(skb, IPOIB_HARD_LEN);
151*4882a593Smuzhiyun }
152*4882a593Smuzhiyun
ipoib_priv(const struct net_device * dev)153*4882a593Smuzhiyun static inline struct ipoib_dev_priv *ipoib_priv(const struct net_device *dev)
154*4882a593Smuzhiyun {
155*4882a593Smuzhiyun struct rdma_netdev *rn = netdev_priv(dev);
156*4882a593Smuzhiyun
157*4882a593Smuzhiyun return rn->clnt_priv;
158*4882a593Smuzhiyun }
159*4882a593Smuzhiyun
160*4882a593Smuzhiyun /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
161*4882a593Smuzhiyun struct ipoib_mcast {
162*4882a593Smuzhiyun struct ib_sa_mcmember_rec mcmember;
163*4882a593Smuzhiyun struct ib_sa_multicast *mc;
164*4882a593Smuzhiyun struct ipoib_ah *ah;
165*4882a593Smuzhiyun
166*4882a593Smuzhiyun struct rb_node rb_node;
167*4882a593Smuzhiyun struct list_head list;
168*4882a593Smuzhiyun
169*4882a593Smuzhiyun unsigned long created;
170*4882a593Smuzhiyun unsigned long backoff;
171*4882a593Smuzhiyun unsigned long delay_until;
172*4882a593Smuzhiyun
173*4882a593Smuzhiyun unsigned long flags;
174*4882a593Smuzhiyun unsigned char logcount;
175*4882a593Smuzhiyun
176*4882a593Smuzhiyun struct list_head neigh_list;
177*4882a593Smuzhiyun
178*4882a593Smuzhiyun struct sk_buff_head pkt_queue;
179*4882a593Smuzhiyun
180*4882a593Smuzhiyun struct net_device *dev;
181*4882a593Smuzhiyun struct completion done;
182*4882a593Smuzhiyun };
183*4882a593Smuzhiyun
184*4882a593Smuzhiyun struct ipoib_rx_buf {
185*4882a593Smuzhiyun struct sk_buff *skb;
186*4882a593Smuzhiyun u64 mapping[IPOIB_UD_RX_SG];
187*4882a593Smuzhiyun };
188*4882a593Smuzhiyun
189*4882a593Smuzhiyun struct ipoib_tx_buf {
190*4882a593Smuzhiyun struct sk_buff *skb;
191*4882a593Smuzhiyun u64 mapping[MAX_SKB_FRAGS + 1];
192*4882a593Smuzhiyun };
193*4882a593Smuzhiyun
194*4882a593Smuzhiyun struct ib_cm_id;
195*4882a593Smuzhiyun
196*4882a593Smuzhiyun struct ipoib_cm_data {
197*4882a593Smuzhiyun __be32 qpn; /* High byte MUST be ignored on receive */
198*4882a593Smuzhiyun __be32 mtu;
199*4882a593Smuzhiyun };
200*4882a593Smuzhiyun
201*4882a593Smuzhiyun /*
202*4882a593Smuzhiyun * Quoting 10.3.1 Queue Pair and EE Context States:
203*4882a593Smuzhiyun *
204*4882a593Smuzhiyun * Note, for QPs that are associated with an SRQ, the Consumer should take the
205*4882a593Smuzhiyun * QP through the Error State before invoking a Destroy QP or a Modify QP to the
206*4882a593Smuzhiyun * Reset State. The Consumer may invoke the Destroy QP without first performing
207*4882a593Smuzhiyun * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
208*4882a593Smuzhiyun * Last WQE Reached Event. However, if the Consumer does not wait for the
209*4882a593Smuzhiyun * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
210*4882a593Smuzhiyun * leakage may occur. Therefore, it is good programming practice to tear down a
211*4882a593Smuzhiyun * QP that is associated with an SRQ by using the following process:
212*4882a593Smuzhiyun *
213*4882a593Smuzhiyun * - Put the QP in the Error State
214*4882a593Smuzhiyun * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
215*4882a593Smuzhiyun * - either:
216*4882a593Smuzhiyun * drain the CQ by invoking the Poll CQ verb and either wait for CQ
217*4882a593Smuzhiyun * to be empty or the number of Poll CQ operations has exceeded
218*4882a593Smuzhiyun * CQ capacity size;
219*4882a593Smuzhiyun * - or
220*4882a593Smuzhiyun * post another WR that completes on the same CQ and wait for this
221*4882a593Smuzhiyun * WR to return as a WC;
222*4882a593Smuzhiyun * - and then invoke a Destroy QP or Reset QP.
223*4882a593Smuzhiyun *
224*4882a593Smuzhiyun * We use the second option and wait for a completion on the
225*4882a593Smuzhiyun * same CQ before destroying QPs attached to our SRQ.
226*4882a593Smuzhiyun */
227*4882a593Smuzhiyun
228*4882a593Smuzhiyun enum ipoib_cm_state {
229*4882a593Smuzhiyun IPOIB_CM_RX_LIVE,
230*4882a593Smuzhiyun IPOIB_CM_RX_ERROR, /* Ignored by stale task */
231*4882a593Smuzhiyun IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
232*4882a593Smuzhiyun };
233*4882a593Smuzhiyun
234*4882a593Smuzhiyun struct ipoib_cm_rx {
235*4882a593Smuzhiyun struct ib_cm_id *id;
236*4882a593Smuzhiyun struct ib_qp *qp;
237*4882a593Smuzhiyun struct ipoib_cm_rx_buf *rx_ring;
238*4882a593Smuzhiyun struct list_head list;
239*4882a593Smuzhiyun struct net_device *dev;
240*4882a593Smuzhiyun unsigned long jiffies;
241*4882a593Smuzhiyun enum ipoib_cm_state state;
242*4882a593Smuzhiyun int recv_count;
243*4882a593Smuzhiyun };
244*4882a593Smuzhiyun
245*4882a593Smuzhiyun struct ipoib_cm_tx {
246*4882a593Smuzhiyun struct ib_cm_id *id;
247*4882a593Smuzhiyun struct ib_qp *qp;
248*4882a593Smuzhiyun struct list_head list;
249*4882a593Smuzhiyun struct net_device *dev;
250*4882a593Smuzhiyun struct ipoib_neigh *neigh;
251*4882a593Smuzhiyun struct ipoib_tx_buf *tx_ring;
252*4882a593Smuzhiyun unsigned int tx_head;
253*4882a593Smuzhiyun unsigned int tx_tail;
254*4882a593Smuzhiyun unsigned long flags;
255*4882a593Smuzhiyun u32 mtu;
256*4882a593Smuzhiyun unsigned int max_send_sge;
257*4882a593Smuzhiyun };
258*4882a593Smuzhiyun
259*4882a593Smuzhiyun struct ipoib_cm_rx_buf {
260*4882a593Smuzhiyun struct sk_buff *skb;
261*4882a593Smuzhiyun u64 mapping[IPOIB_CM_RX_SG];
262*4882a593Smuzhiyun };
263*4882a593Smuzhiyun
264*4882a593Smuzhiyun struct ipoib_cm_dev_priv {
265*4882a593Smuzhiyun struct ib_srq *srq;
266*4882a593Smuzhiyun struct ipoib_cm_rx_buf *srq_ring;
267*4882a593Smuzhiyun struct ib_cm_id *id;
268*4882a593Smuzhiyun struct list_head passive_ids; /* state: LIVE */
269*4882a593Smuzhiyun struct list_head rx_error_list; /* state: ERROR */
270*4882a593Smuzhiyun struct list_head rx_flush_list; /* state: FLUSH, drain not started */
271*4882a593Smuzhiyun struct list_head rx_drain_list; /* state: FLUSH, drain started */
272*4882a593Smuzhiyun struct list_head rx_reap_list; /* state: FLUSH, drain done */
273*4882a593Smuzhiyun struct work_struct start_task;
274*4882a593Smuzhiyun struct work_struct reap_task;
275*4882a593Smuzhiyun struct work_struct skb_task;
276*4882a593Smuzhiyun struct work_struct rx_reap_task;
277*4882a593Smuzhiyun struct delayed_work stale_task;
278*4882a593Smuzhiyun struct sk_buff_head skb_queue;
279*4882a593Smuzhiyun struct list_head start_list;
280*4882a593Smuzhiyun struct list_head reap_list;
281*4882a593Smuzhiyun struct ib_wc ibwc[IPOIB_NUM_WC];
282*4882a593Smuzhiyun struct ib_sge rx_sge[IPOIB_CM_RX_SG];
283*4882a593Smuzhiyun struct ib_recv_wr rx_wr;
284*4882a593Smuzhiyun int nonsrq_conn_qp;
285*4882a593Smuzhiyun int max_cm_mtu;
286*4882a593Smuzhiyun int num_frags;
287*4882a593Smuzhiyun };
288*4882a593Smuzhiyun
289*4882a593Smuzhiyun struct ipoib_ethtool_st {
290*4882a593Smuzhiyun u16 coalesce_usecs;
291*4882a593Smuzhiyun u16 max_coalesced_frames;
292*4882a593Smuzhiyun };
293*4882a593Smuzhiyun
294*4882a593Smuzhiyun struct ipoib_neigh_table;
295*4882a593Smuzhiyun
296*4882a593Smuzhiyun struct ipoib_neigh_hash {
297*4882a593Smuzhiyun struct ipoib_neigh_table *ntbl;
298*4882a593Smuzhiyun struct ipoib_neigh __rcu **buckets;
299*4882a593Smuzhiyun struct rcu_head rcu;
300*4882a593Smuzhiyun u32 mask;
301*4882a593Smuzhiyun u32 size;
302*4882a593Smuzhiyun };
303*4882a593Smuzhiyun
304*4882a593Smuzhiyun struct ipoib_neigh_table {
305*4882a593Smuzhiyun struct ipoib_neigh_hash __rcu *htbl;
306*4882a593Smuzhiyun atomic_t entries;
307*4882a593Smuzhiyun struct completion flushed;
308*4882a593Smuzhiyun struct completion deleted;
309*4882a593Smuzhiyun };
310*4882a593Smuzhiyun
311*4882a593Smuzhiyun struct ipoib_qp_state_validate {
312*4882a593Smuzhiyun struct work_struct work;
313*4882a593Smuzhiyun struct ipoib_dev_priv *priv;
314*4882a593Smuzhiyun };
315*4882a593Smuzhiyun
316*4882a593Smuzhiyun /*
317*4882a593Smuzhiyun * Device private locking: network stack tx_lock protects members used
318*4882a593Smuzhiyun * in TX fast path, lock protects everything else. lock nests inside
319*4882a593Smuzhiyun * of tx_lock (ie tx_lock must be acquired first if needed).
320*4882a593Smuzhiyun */
321*4882a593Smuzhiyun struct ipoib_dev_priv {
322*4882a593Smuzhiyun spinlock_t lock;
323*4882a593Smuzhiyun
324*4882a593Smuzhiyun struct net_device *dev;
325*4882a593Smuzhiyun void (*next_priv_destructor)(struct net_device *dev);
326*4882a593Smuzhiyun
327*4882a593Smuzhiyun struct napi_struct send_napi;
328*4882a593Smuzhiyun struct napi_struct recv_napi;
329*4882a593Smuzhiyun
330*4882a593Smuzhiyun unsigned long flags;
331*4882a593Smuzhiyun
332*4882a593Smuzhiyun /*
333*4882a593Smuzhiyun * This protects access to the child_intfs list.
334*4882a593Smuzhiyun * To READ from child_intfs the RTNL or vlan_rwsem read side must be
335*4882a593Smuzhiyun * held. To WRITE RTNL and the vlan_rwsem write side must be held (in
336*4882a593Smuzhiyun * that order) This lock exists because we have a few contexts where
337*4882a593Smuzhiyun * we need the child_intfs, but do not want to grab the RTNL.
338*4882a593Smuzhiyun */
339*4882a593Smuzhiyun struct rw_semaphore vlan_rwsem;
340*4882a593Smuzhiyun struct mutex mcast_mutex;
341*4882a593Smuzhiyun
342*4882a593Smuzhiyun struct rb_root path_tree;
343*4882a593Smuzhiyun struct list_head path_list;
344*4882a593Smuzhiyun
345*4882a593Smuzhiyun struct ipoib_neigh_table ntbl;
346*4882a593Smuzhiyun
347*4882a593Smuzhiyun struct ipoib_mcast *broadcast;
348*4882a593Smuzhiyun struct list_head multicast_list;
349*4882a593Smuzhiyun struct rb_root multicast_tree;
350*4882a593Smuzhiyun
351*4882a593Smuzhiyun struct workqueue_struct *wq;
352*4882a593Smuzhiyun struct delayed_work mcast_task;
353*4882a593Smuzhiyun struct work_struct carrier_on_task;
354*4882a593Smuzhiyun struct work_struct flush_light;
355*4882a593Smuzhiyun struct work_struct flush_normal;
356*4882a593Smuzhiyun struct work_struct flush_heavy;
357*4882a593Smuzhiyun struct work_struct restart_task;
358*4882a593Smuzhiyun struct delayed_work ah_reap_task;
359*4882a593Smuzhiyun struct delayed_work neigh_reap_task;
360*4882a593Smuzhiyun struct ib_device *ca;
361*4882a593Smuzhiyun u8 port;
362*4882a593Smuzhiyun u16 pkey;
363*4882a593Smuzhiyun u16 pkey_index;
364*4882a593Smuzhiyun struct ib_pd *pd;
365*4882a593Smuzhiyun struct ib_cq *recv_cq;
366*4882a593Smuzhiyun struct ib_cq *send_cq;
367*4882a593Smuzhiyun struct ib_qp *qp;
368*4882a593Smuzhiyun u32 qkey;
369*4882a593Smuzhiyun
370*4882a593Smuzhiyun union ib_gid local_gid;
371*4882a593Smuzhiyun u32 local_lid;
372*4882a593Smuzhiyun
373*4882a593Smuzhiyun unsigned int admin_mtu;
374*4882a593Smuzhiyun unsigned int mcast_mtu;
375*4882a593Smuzhiyun unsigned int max_ib_mtu;
376*4882a593Smuzhiyun
377*4882a593Smuzhiyun struct ipoib_rx_buf *rx_ring;
378*4882a593Smuzhiyun
379*4882a593Smuzhiyun struct ipoib_tx_buf *tx_ring;
380*4882a593Smuzhiyun /* cyclic ring variables for managing tx_ring, for UD only */
381*4882a593Smuzhiyun unsigned int tx_head;
382*4882a593Smuzhiyun unsigned int tx_tail;
383*4882a593Smuzhiyun /* cyclic ring variables for counting overall outstanding send WRs */
384*4882a593Smuzhiyun unsigned int global_tx_head;
385*4882a593Smuzhiyun unsigned int global_tx_tail;
386*4882a593Smuzhiyun struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];
387*4882a593Smuzhiyun struct ib_ud_wr tx_wr;
388*4882a593Smuzhiyun struct ib_wc send_wc[MAX_SEND_CQE];
389*4882a593Smuzhiyun
390*4882a593Smuzhiyun struct ib_recv_wr rx_wr;
391*4882a593Smuzhiyun struct ib_sge rx_sge[IPOIB_UD_RX_SG];
392*4882a593Smuzhiyun
393*4882a593Smuzhiyun struct ib_wc ibwc[IPOIB_NUM_WC];
394*4882a593Smuzhiyun
395*4882a593Smuzhiyun struct list_head dead_ahs;
396*4882a593Smuzhiyun
397*4882a593Smuzhiyun struct ib_event_handler event_handler;
398*4882a593Smuzhiyun
399*4882a593Smuzhiyun struct net_device *parent;
400*4882a593Smuzhiyun struct list_head child_intfs;
401*4882a593Smuzhiyun struct list_head list;
402*4882a593Smuzhiyun int child_type;
403*4882a593Smuzhiyun
404*4882a593Smuzhiyun #ifdef CONFIG_INFINIBAND_IPOIB_CM
405*4882a593Smuzhiyun struct ipoib_cm_dev_priv cm;
406*4882a593Smuzhiyun #endif
407*4882a593Smuzhiyun
408*4882a593Smuzhiyun #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
409*4882a593Smuzhiyun struct list_head fs_list;
410*4882a593Smuzhiyun struct dentry *mcg_dentry;
411*4882a593Smuzhiyun struct dentry *path_dentry;
412*4882a593Smuzhiyun #endif
413*4882a593Smuzhiyun u64 hca_caps;
414*4882a593Smuzhiyun struct ipoib_ethtool_st ethtool;
415*4882a593Smuzhiyun unsigned int max_send_sge;
416*4882a593Smuzhiyun bool sm_fullmember_sendonly_support;
417*4882a593Smuzhiyun const struct net_device_ops *rn_ops;
418*4882a593Smuzhiyun };
419*4882a593Smuzhiyun
420*4882a593Smuzhiyun struct ipoib_ah {
421*4882a593Smuzhiyun struct net_device *dev;
422*4882a593Smuzhiyun struct ib_ah *ah;
423*4882a593Smuzhiyun struct list_head list;
424*4882a593Smuzhiyun struct kref ref;
425*4882a593Smuzhiyun unsigned int last_send;
426*4882a593Smuzhiyun int valid;
427*4882a593Smuzhiyun };
428*4882a593Smuzhiyun
429*4882a593Smuzhiyun struct ipoib_path {
430*4882a593Smuzhiyun struct net_device *dev;
431*4882a593Smuzhiyun struct sa_path_rec pathrec;
432*4882a593Smuzhiyun struct ipoib_ah *ah;
433*4882a593Smuzhiyun struct sk_buff_head queue;
434*4882a593Smuzhiyun
435*4882a593Smuzhiyun struct list_head neigh_list;
436*4882a593Smuzhiyun
437*4882a593Smuzhiyun int query_id;
438*4882a593Smuzhiyun struct ib_sa_query *query;
439*4882a593Smuzhiyun struct completion done;
440*4882a593Smuzhiyun
441*4882a593Smuzhiyun struct rb_node rb_node;
442*4882a593Smuzhiyun struct list_head list;
443*4882a593Smuzhiyun };
444*4882a593Smuzhiyun
445*4882a593Smuzhiyun struct ipoib_neigh {
446*4882a593Smuzhiyun struct ipoib_ah *ah;
447*4882a593Smuzhiyun #ifdef CONFIG_INFINIBAND_IPOIB_CM
448*4882a593Smuzhiyun struct ipoib_cm_tx *cm;
449*4882a593Smuzhiyun #endif
450*4882a593Smuzhiyun u8 daddr[INFINIBAND_ALEN];
451*4882a593Smuzhiyun struct sk_buff_head queue;
452*4882a593Smuzhiyun
453*4882a593Smuzhiyun struct net_device *dev;
454*4882a593Smuzhiyun
455*4882a593Smuzhiyun struct list_head list;
456*4882a593Smuzhiyun struct ipoib_neigh __rcu *hnext;
457*4882a593Smuzhiyun struct rcu_head rcu;
458*4882a593Smuzhiyun atomic_t refcnt;
459*4882a593Smuzhiyun unsigned long alive;
460*4882a593Smuzhiyun };
461*4882a593Smuzhiyun
462*4882a593Smuzhiyun #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
463*4882a593Smuzhiyun #define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
464*4882a593Smuzhiyun
465*4882a593Smuzhiyun void ipoib_neigh_dtor(struct ipoib_neigh *neigh);
ipoib_neigh_put(struct ipoib_neigh * neigh)466*4882a593Smuzhiyun static inline void ipoib_neigh_put(struct ipoib_neigh *neigh)
467*4882a593Smuzhiyun {
468*4882a593Smuzhiyun if (atomic_dec_and_test(&neigh->refcnt))
469*4882a593Smuzhiyun ipoib_neigh_dtor(neigh);
470*4882a593Smuzhiyun }
471*4882a593Smuzhiyun struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr);
472*4882a593Smuzhiyun struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr,
473*4882a593Smuzhiyun struct net_device *dev);
474*4882a593Smuzhiyun void ipoib_neigh_free(struct ipoib_neigh *neigh);
475*4882a593Smuzhiyun void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid);
476*4882a593Smuzhiyun
477*4882a593Smuzhiyun extern struct workqueue_struct *ipoib_workqueue;
478*4882a593Smuzhiyun
479*4882a593Smuzhiyun /* functions */
480*4882a593Smuzhiyun
481*4882a593Smuzhiyun int ipoib_rx_poll(struct napi_struct *napi, int budget);
482*4882a593Smuzhiyun int ipoib_tx_poll(struct napi_struct *napi, int budget);
483*4882a593Smuzhiyun void ipoib_ib_rx_completion(struct ib_cq *cq, void *ctx_ptr);
484*4882a593Smuzhiyun void ipoib_ib_tx_completion(struct ib_cq *cq, void *ctx_ptr);
485*4882a593Smuzhiyun
486*4882a593Smuzhiyun struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
487*4882a593Smuzhiyun struct ib_pd *pd, struct rdma_ah_attr *attr);
488*4882a593Smuzhiyun void ipoib_free_ah(struct kref *kref);
ipoib_put_ah(struct ipoib_ah * ah)489*4882a593Smuzhiyun static inline void ipoib_put_ah(struct ipoib_ah *ah)
490*4882a593Smuzhiyun {
491*4882a593Smuzhiyun kref_put(&ah->ref, ipoib_free_ah);
492*4882a593Smuzhiyun }
493*4882a593Smuzhiyun int ipoib_open(struct net_device *dev);
494*4882a593Smuzhiyun void ipoib_intf_free(struct net_device *dev);
495*4882a593Smuzhiyun int ipoib_add_pkey_attr(struct net_device *dev);
496*4882a593Smuzhiyun int ipoib_add_umcast_attr(struct net_device *dev);
497*4882a593Smuzhiyun
498*4882a593Smuzhiyun int ipoib_send(struct net_device *dev, struct sk_buff *skb,
499*4882a593Smuzhiyun struct ib_ah *address, u32 dqpn);
500*4882a593Smuzhiyun void ipoib_reap_ah(struct work_struct *work);
501*4882a593Smuzhiyun
502*4882a593Smuzhiyun struct ipoib_path *__path_find(struct net_device *dev, void *gid);
503*4882a593Smuzhiyun void ipoib_mark_paths_invalid(struct net_device *dev);
504*4882a593Smuzhiyun void ipoib_flush_paths(struct net_device *dev);
505*4882a593Smuzhiyun struct net_device *ipoib_intf_alloc(struct ib_device *hca, u8 port,
506*4882a593Smuzhiyun const char *format);
507*4882a593Smuzhiyun int ipoib_intf_init(struct ib_device *hca, u8 port, const char *format,
508*4882a593Smuzhiyun struct net_device *dev);
509*4882a593Smuzhiyun void ipoib_ib_tx_timer_func(struct timer_list *t);
510*4882a593Smuzhiyun void ipoib_ib_dev_flush_light(struct work_struct *work);
511*4882a593Smuzhiyun void ipoib_ib_dev_flush_normal(struct work_struct *work);
512*4882a593Smuzhiyun void ipoib_ib_dev_flush_heavy(struct work_struct *work);
513*4882a593Smuzhiyun void ipoib_pkey_event(struct work_struct *work);
514*4882a593Smuzhiyun void ipoib_ib_dev_cleanup(struct net_device *dev);
515*4882a593Smuzhiyun
516*4882a593Smuzhiyun int ipoib_ib_dev_open_default(struct net_device *dev);
517*4882a593Smuzhiyun int ipoib_ib_dev_open(struct net_device *dev);
518*4882a593Smuzhiyun void ipoib_ib_dev_stop(struct net_device *dev);
519*4882a593Smuzhiyun void ipoib_ib_dev_up(struct net_device *dev);
520*4882a593Smuzhiyun void ipoib_ib_dev_down(struct net_device *dev);
521*4882a593Smuzhiyun int ipoib_ib_dev_stop_default(struct net_device *dev);
522*4882a593Smuzhiyun void ipoib_pkey_dev_check_presence(struct net_device *dev);
523*4882a593Smuzhiyun
524*4882a593Smuzhiyun void ipoib_mcast_join_task(struct work_struct *work);
525*4882a593Smuzhiyun void ipoib_mcast_carrier_on_task(struct work_struct *work);
526*4882a593Smuzhiyun void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb);
527*4882a593Smuzhiyun
528*4882a593Smuzhiyun void ipoib_mcast_restart_task(struct work_struct *work);
529*4882a593Smuzhiyun void ipoib_mcast_start_thread(struct net_device *dev);
530*4882a593Smuzhiyun void ipoib_mcast_stop_thread(struct net_device *dev);
531*4882a593Smuzhiyun
532*4882a593Smuzhiyun void ipoib_mcast_dev_down(struct net_device *dev);
533*4882a593Smuzhiyun void ipoib_mcast_dev_flush(struct net_device *dev);
534*4882a593Smuzhiyun
535*4882a593Smuzhiyun int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req);
536*4882a593Smuzhiyun void ipoib_dma_unmap_tx(struct ipoib_dev_priv *priv,
537*4882a593Smuzhiyun struct ipoib_tx_buf *tx_req);
538*4882a593Smuzhiyun
539*4882a593Smuzhiyun struct rtnl_link_ops *ipoib_get_link_ops(void);
540*4882a593Smuzhiyun
ipoib_build_sge(struct ipoib_dev_priv * priv,struct ipoib_tx_buf * tx_req)541*4882a593Smuzhiyun static inline void ipoib_build_sge(struct ipoib_dev_priv *priv,
542*4882a593Smuzhiyun struct ipoib_tx_buf *tx_req)
543*4882a593Smuzhiyun {
544*4882a593Smuzhiyun int i, off;
545*4882a593Smuzhiyun struct sk_buff *skb = tx_req->skb;
546*4882a593Smuzhiyun skb_frag_t *frags = skb_shinfo(skb)->frags;
547*4882a593Smuzhiyun int nr_frags = skb_shinfo(skb)->nr_frags;
548*4882a593Smuzhiyun u64 *mapping = tx_req->mapping;
549*4882a593Smuzhiyun
550*4882a593Smuzhiyun if (skb_headlen(skb)) {
551*4882a593Smuzhiyun priv->tx_sge[0].addr = mapping[0];
552*4882a593Smuzhiyun priv->tx_sge[0].length = skb_headlen(skb);
553*4882a593Smuzhiyun off = 1;
554*4882a593Smuzhiyun } else
555*4882a593Smuzhiyun off = 0;
556*4882a593Smuzhiyun
557*4882a593Smuzhiyun for (i = 0; i < nr_frags; ++i) {
558*4882a593Smuzhiyun priv->tx_sge[i + off].addr = mapping[i + off];
559*4882a593Smuzhiyun priv->tx_sge[i + off].length = skb_frag_size(&frags[i]);
560*4882a593Smuzhiyun }
561*4882a593Smuzhiyun priv->tx_wr.wr.num_sge = nr_frags + off;
562*4882a593Smuzhiyun }
563*4882a593Smuzhiyun
564*4882a593Smuzhiyun #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
565*4882a593Smuzhiyun struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
566*4882a593Smuzhiyun int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
567*4882a593Smuzhiyun void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
568*4882a593Smuzhiyun union ib_gid *gid,
569*4882a593Smuzhiyun unsigned long *created,
570*4882a593Smuzhiyun unsigned int *queuelen,
571*4882a593Smuzhiyun unsigned int *complete,
572*4882a593Smuzhiyun unsigned int *send_only);
573*4882a593Smuzhiyun
574*4882a593Smuzhiyun struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
575*4882a593Smuzhiyun int ipoib_path_iter_next(struct ipoib_path_iter *iter);
576*4882a593Smuzhiyun void ipoib_path_iter_read(struct ipoib_path_iter *iter,
577*4882a593Smuzhiyun struct ipoib_path *path);
578*4882a593Smuzhiyun #endif
579*4882a593Smuzhiyun
580*4882a593Smuzhiyun int ipoib_mcast_attach(struct net_device *dev, struct ib_device *hca,
581*4882a593Smuzhiyun union ib_gid *mgid, u16 mlid, int set_qkey, u32 qkey);
582*4882a593Smuzhiyun int ipoib_mcast_detach(struct net_device *dev, struct ib_device *hca,
583*4882a593Smuzhiyun union ib_gid *mgid, u16 mlid);
584*4882a593Smuzhiyun void ipoib_mcast_remove_list(struct list_head *remove_list);
585*4882a593Smuzhiyun void ipoib_check_and_add_mcast_sendonly(struct ipoib_dev_priv *priv, u8 *mgid,
586*4882a593Smuzhiyun struct list_head *remove_list);
587*4882a593Smuzhiyun
588*4882a593Smuzhiyun int ipoib_init_qp(struct net_device *dev);
589*4882a593Smuzhiyun int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
590*4882a593Smuzhiyun void ipoib_transport_dev_cleanup(struct net_device *dev);
591*4882a593Smuzhiyun
592*4882a593Smuzhiyun void ipoib_event(struct ib_event_handler *handler,
593*4882a593Smuzhiyun struct ib_event *record);
594*4882a593Smuzhiyun
595*4882a593Smuzhiyun int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
596*4882a593Smuzhiyun int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
597*4882a593Smuzhiyun
598*4882a593Smuzhiyun int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,
599*4882a593Smuzhiyun u16 pkey, int child_type);
600*4882a593Smuzhiyun
601*4882a593Smuzhiyun int __init ipoib_netlink_init(void);
602*4882a593Smuzhiyun void __exit ipoib_netlink_fini(void);
603*4882a593Smuzhiyun
604*4882a593Smuzhiyun void ipoib_set_umcast(struct net_device *ndev, int umcast_val);
605*4882a593Smuzhiyun int ipoib_set_mode(struct net_device *dev, const char *buf);
606*4882a593Smuzhiyun
607*4882a593Smuzhiyun void ipoib_setup_common(struct net_device *dev);
608*4882a593Smuzhiyun
609*4882a593Smuzhiyun void ipoib_pkey_open(struct ipoib_dev_priv *priv);
610*4882a593Smuzhiyun void ipoib_drain_cq(struct net_device *dev);
611*4882a593Smuzhiyun
612*4882a593Smuzhiyun void ipoib_set_ethtool_ops(struct net_device *dev);
613*4882a593Smuzhiyun
614*4882a593Smuzhiyun #define IPOIB_FLAGS_RC 0x80
615*4882a593Smuzhiyun #define IPOIB_FLAGS_UC 0x40
616*4882a593Smuzhiyun
617*4882a593Smuzhiyun /* We don't support UC connections at the moment */
618*4882a593Smuzhiyun #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
619*4882a593Smuzhiyun
620*4882a593Smuzhiyun #ifdef CONFIG_INFINIBAND_IPOIB_CM
621*4882a593Smuzhiyun
622*4882a593Smuzhiyun extern int ipoib_max_conn_qp;
623*4882a593Smuzhiyun
ipoib_cm_admin_enabled(struct net_device * dev)624*4882a593Smuzhiyun static inline int ipoib_cm_admin_enabled(struct net_device *dev)
625*4882a593Smuzhiyun {
626*4882a593Smuzhiyun struct ipoib_dev_priv *priv = ipoib_priv(dev);
627*4882a593Smuzhiyun return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
628*4882a593Smuzhiyun test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
629*4882a593Smuzhiyun }
630*4882a593Smuzhiyun
ipoib_cm_enabled(struct net_device * dev,u8 * hwaddr)631*4882a593Smuzhiyun static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
632*4882a593Smuzhiyun {
633*4882a593Smuzhiyun struct ipoib_dev_priv *priv = ipoib_priv(dev);
634*4882a593Smuzhiyun return IPOIB_CM_SUPPORTED(hwaddr) &&
635*4882a593Smuzhiyun test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
636*4882a593Smuzhiyun }
637*4882a593Smuzhiyun
ipoib_cm_up(struct ipoib_neigh * neigh)638*4882a593Smuzhiyun static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
639*4882a593Smuzhiyun
640*4882a593Smuzhiyun {
641*4882a593Smuzhiyun return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
642*4882a593Smuzhiyun }
643*4882a593Smuzhiyun
ipoib_cm_get(struct ipoib_neigh * neigh)644*4882a593Smuzhiyun static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
645*4882a593Smuzhiyun {
646*4882a593Smuzhiyun return neigh->cm;
647*4882a593Smuzhiyun }
648*4882a593Smuzhiyun
ipoib_cm_set(struct ipoib_neigh * neigh,struct ipoib_cm_tx * tx)649*4882a593Smuzhiyun static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
650*4882a593Smuzhiyun {
651*4882a593Smuzhiyun neigh->cm = tx;
652*4882a593Smuzhiyun }
653*4882a593Smuzhiyun
ipoib_cm_has_srq(struct net_device * dev)654*4882a593Smuzhiyun static inline int ipoib_cm_has_srq(struct net_device *dev)
655*4882a593Smuzhiyun {
656*4882a593Smuzhiyun struct ipoib_dev_priv *priv = ipoib_priv(dev);
657*4882a593Smuzhiyun return !!priv->cm.srq;
658*4882a593Smuzhiyun }
659*4882a593Smuzhiyun
ipoib_cm_max_mtu(struct net_device * dev)660*4882a593Smuzhiyun static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
661*4882a593Smuzhiyun {
662*4882a593Smuzhiyun struct ipoib_dev_priv *priv = ipoib_priv(dev);
663*4882a593Smuzhiyun return priv->cm.max_cm_mtu;
664*4882a593Smuzhiyun }
665*4882a593Smuzhiyun
666*4882a593Smuzhiyun void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
667*4882a593Smuzhiyun int ipoib_cm_dev_open(struct net_device *dev);
668*4882a593Smuzhiyun void ipoib_cm_dev_stop(struct net_device *dev);
669*4882a593Smuzhiyun int ipoib_cm_dev_init(struct net_device *dev);
670*4882a593Smuzhiyun int ipoib_cm_add_mode_attr(struct net_device *dev);
671*4882a593Smuzhiyun void ipoib_cm_dev_cleanup(struct net_device *dev);
672*4882a593Smuzhiyun struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
673*4882a593Smuzhiyun struct ipoib_neigh *neigh);
674*4882a593Smuzhiyun void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
675*4882a593Smuzhiyun void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
676*4882a593Smuzhiyun unsigned int mtu);
677*4882a593Smuzhiyun void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
678*4882a593Smuzhiyun void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
679*4882a593Smuzhiyun #else
680*4882a593Smuzhiyun
681*4882a593Smuzhiyun struct ipoib_cm_tx;
682*4882a593Smuzhiyun
683*4882a593Smuzhiyun #define ipoib_max_conn_qp 0
684*4882a593Smuzhiyun
ipoib_cm_admin_enabled(struct net_device * dev)685*4882a593Smuzhiyun static inline int ipoib_cm_admin_enabled(struct net_device *dev)
686*4882a593Smuzhiyun {
687*4882a593Smuzhiyun return 0;
688*4882a593Smuzhiyun }
ipoib_cm_enabled(struct net_device * dev,u8 * hwaddr)689*4882a593Smuzhiyun static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
690*4882a593Smuzhiyun
691*4882a593Smuzhiyun {
692*4882a593Smuzhiyun return 0;
693*4882a593Smuzhiyun }
694*4882a593Smuzhiyun
ipoib_cm_up(struct ipoib_neigh * neigh)695*4882a593Smuzhiyun static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
696*4882a593Smuzhiyun
697*4882a593Smuzhiyun {
698*4882a593Smuzhiyun return 0;
699*4882a593Smuzhiyun }
700*4882a593Smuzhiyun
ipoib_cm_get(struct ipoib_neigh * neigh)701*4882a593Smuzhiyun static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
702*4882a593Smuzhiyun {
703*4882a593Smuzhiyun return NULL;
704*4882a593Smuzhiyun }
705*4882a593Smuzhiyun
ipoib_cm_set(struct ipoib_neigh * neigh,struct ipoib_cm_tx * tx)706*4882a593Smuzhiyun static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
707*4882a593Smuzhiyun {
708*4882a593Smuzhiyun }
709*4882a593Smuzhiyun
ipoib_cm_has_srq(struct net_device * dev)710*4882a593Smuzhiyun static inline int ipoib_cm_has_srq(struct net_device *dev)
711*4882a593Smuzhiyun {
712*4882a593Smuzhiyun return 0;
713*4882a593Smuzhiyun }
714*4882a593Smuzhiyun
ipoib_cm_max_mtu(struct net_device * dev)715*4882a593Smuzhiyun static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
716*4882a593Smuzhiyun {
717*4882a593Smuzhiyun return 0;
718*4882a593Smuzhiyun }
719*4882a593Smuzhiyun
720*4882a593Smuzhiyun static inline
ipoib_cm_send(struct net_device * dev,struct sk_buff * skb,struct ipoib_cm_tx * tx)721*4882a593Smuzhiyun void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
722*4882a593Smuzhiyun {
723*4882a593Smuzhiyun return;
724*4882a593Smuzhiyun }
725*4882a593Smuzhiyun
726*4882a593Smuzhiyun static inline
ipoib_cm_dev_open(struct net_device * dev)727*4882a593Smuzhiyun int ipoib_cm_dev_open(struct net_device *dev)
728*4882a593Smuzhiyun {
729*4882a593Smuzhiyun return 0;
730*4882a593Smuzhiyun }
731*4882a593Smuzhiyun
732*4882a593Smuzhiyun static inline
ipoib_cm_dev_stop(struct net_device * dev)733*4882a593Smuzhiyun void ipoib_cm_dev_stop(struct net_device *dev)
734*4882a593Smuzhiyun {
735*4882a593Smuzhiyun return;
736*4882a593Smuzhiyun }
737*4882a593Smuzhiyun
738*4882a593Smuzhiyun static inline
ipoib_cm_dev_init(struct net_device * dev)739*4882a593Smuzhiyun int ipoib_cm_dev_init(struct net_device *dev)
740*4882a593Smuzhiyun {
741*4882a593Smuzhiyun return -EOPNOTSUPP;
742*4882a593Smuzhiyun }
743*4882a593Smuzhiyun
744*4882a593Smuzhiyun static inline
ipoib_cm_dev_cleanup(struct net_device * dev)745*4882a593Smuzhiyun void ipoib_cm_dev_cleanup(struct net_device *dev)
746*4882a593Smuzhiyun {
747*4882a593Smuzhiyun return;
748*4882a593Smuzhiyun }
749*4882a593Smuzhiyun
750*4882a593Smuzhiyun static inline
ipoib_cm_create_tx(struct net_device * dev,struct ipoib_path * path,struct ipoib_neigh * neigh)751*4882a593Smuzhiyun struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
752*4882a593Smuzhiyun struct ipoib_neigh *neigh)
753*4882a593Smuzhiyun {
754*4882a593Smuzhiyun return NULL;
755*4882a593Smuzhiyun }
756*4882a593Smuzhiyun
757*4882a593Smuzhiyun static inline
ipoib_cm_destroy_tx(struct ipoib_cm_tx * tx)758*4882a593Smuzhiyun void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
759*4882a593Smuzhiyun {
760*4882a593Smuzhiyun return;
761*4882a593Smuzhiyun }
762*4882a593Smuzhiyun
763*4882a593Smuzhiyun static inline
ipoib_cm_add_mode_attr(struct net_device * dev)764*4882a593Smuzhiyun int ipoib_cm_add_mode_attr(struct net_device *dev)
765*4882a593Smuzhiyun {
766*4882a593Smuzhiyun return 0;
767*4882a593Smuzhiyun }
768*4882a593Smuzhiyun
ipoib_cm_skb_too_long(struct net_device * dev,struct sk_buff * skb,unsigned int mtu)769*4882a593Smuzhiyun static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
770*4882a593Smuzhiyun unsigned int mtu)
771*4882a593Smuzhiyun {
772*4882a593Smuzhiyun dev_kfree_skb_any(skb);
773*4882a593Smuzhiyun }
774*4882a593Smuzhiyun
ipoib_cm_handle_rx_wc(struct net_device * dev,struct ib_wc * wc)775*4882a593Smuzhiyun static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
776*4882a593Smuzhiyun {
777*4882a593Smuzhiyun }
778*4882a593Smuzhiyun
ipoib_cm_handle_tx_wc(struct net_device * dev,struct ib_wc * wc)779*4882a593Smuzhiyun static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
780*4882a593Smuzhiyun {
781*4882a593Smuzhiyun }
782*4882a593Smuzhiyun #endif
783*4882a593Smuzhiyun
784*4882a593Smuzhiyun #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
785*4882a593Smuzhiyun void ipoib_create_debug_files(struct net_device *dev);
786*4882a593Smuzhiyun void ipoib_delete_debug_files(struct net_device *dev);
787*4882a593Smuzhiyun void ipoib_register_debugfs(void);
788*4882a593Smuzhiyun void ipoib_unregister_debugfs(void);
789*4882a593Smuzhiyun #else
ipoib_create_debug_files(struct net_device * dev)790*4882a593Smuzhiyun static inline void ipoib_create_debug_files(struct net_device *dev) { }
ipoib_delete_debug_files(struct net_device * dev)791*4882a593Smuzhiyun static inline void ipoib_delete_debug_files(struct net_device *dev) { }
ipoib_register_debugfs(void)792*4882a593Smuzhiyun static inline void ipoib_register_debugfs(void) { }
ipoib_unregister_debugfs(void)793*4882a593Smuzhiyun static inline void ipoib_unregister_debugfs(void) { }
794*4882a593Smuzhiyun #endif
795*4882a593Smuzhiyun
796*4882a593Smuzhiyun #define ipoib_printk(level, priv, format, arg...) \
797*4882a593Smuzhiyun printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
798*4882a593Smuzhiyun #define ipoib_warn(priv, format, arg...) \
799*4882a593Smuzhiyun do { \
800*4882a593Smuzhiyun static DEFINE_RATELIMIT_STATE(_rs, \
801*4882a593Smuzhiyun 10 * HZ /*10 seconds */, \
802*4882a593Smuzhiyun 100); \
803*4882a593Smuzhiyun if (__ratelimit(&_rs)) \
804*4882a593Smuzhiyun ipoib_printk(KERN_WARNING, priv, format , ## arg);\
805*4882a593Smuzhiyun } while (0)
806*4882a593Smuzhiyun
807*4882a593Smuzhiyun extern int ipoib_sendq_size;
808*4882a593Smuzhiyun extern int ipoib_recvq_size;
809*4882a593Smuzhiyun
810*4882a593Smuzhiyun extern struct ib_sa_client ipoib_sa_client;
811*4882a593Smuzhiyun
812*4882a593Smuzhiyun #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
813*4882a593Smuzhiyun extern int ipoib_debug_level;
814*4882a593Smuzhiyun
815*4882a593Smuzhiyun #define ipoib_dbg(priv, format, arg...) \
816*4882a593Smuzhiyun do { \
817*4882a593Smuzhiyun if (ipoib_debug_level > 0) \
818*4882a593Smuzhiyun ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
819*4882a593Smuzhiyun } while (0)
820*4882a593Smuzhiyun #define ipoib_dbg_mcast(priv, format, arg...) \
821*4882a593Smuzhiyun do { \
822*4882a593Smuzhiyun if (mcast_debug_level > 0) \
823*4882a593Smuzhiyun ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
824*4882a593Smuzhiyun } while (0)
825*4882a593Smuzhiyun #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
826*4882a593Smuzhiyun #define ipoib_dbg(priv, format, arg...) \
827*4882a593Smuzhiyun do { (void) (priv); } while (0)
828*4882a593Smuzhiyun #define ipoib_dbg_mcast(priv, format, arg...) \
829*4882a593Smuzhiyun do { (void) (priv); } while (0)
830*4882a593Smuzhiyun #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
831*4882a593Smuzhiyun
832*4882a593Smuzhiyun #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
833*4882a593Smuzhiyun #define ipoib_dbg_data(priv, format, arg...) \
834*4882a593Smuzhiyun do { \
835*4882a593Smuzhiyun if (data_debug_level > 0) \
836*4882a593Smuzhiyun ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
837*4882a593Smuzhiyun } while (0)
838*4882a593Smuzhiyun #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
839*4882a593Smuzhiyun #define ipoib_dbg_data(priv, format, arg...) \
840*4882a593Smuzhiyun do { (void) (priv); } while (0)
841*4882a593Smuzhiyun #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
842*4882a593Smuzhiyun
843*4882a593Smuzhiyun #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
844*4882a593Smuzhiyun
845*4882a593Smuzhiyun #endif /* _IPOIB_H */
846