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cxgb4/iw_cxgb4: work request logging feature
[deliverable/linux.git] / drivers / net / ethernet / chelsio / cxgb4 / cxgb4_uld.h
CommitLineData
625ba2c2
DM		 1/*
2 * This file is part of the Chelsio T4 Ethernet driver for Linux.
3 *
ce100b8b 4 * Copyright (c) 2003-2014 Chelsio Communications, Inc. All rights reserved.
625ba2c2
DM		 5 *
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer.
19 *
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 */
34
35#ifndef __CXGB4_OFLD_H
36#define __CXGB4_OFLD_H
37
38#include <linux/cache.h>
39#include <linux/spinlock.h>
40#include <linux/skbuff.h>
793dad94 41#include <linux/inetdevice.h>
60063497 42#include <linux/atomic.h>
625ba2c2
DM		 43
44/* CPL message priority levels */
45enum {
46 CPL_PRIORITY_DATA = 0, /* data messages */
47 CPL_PRIORITY_SETUP = 1, /* connection setup messages */
48 CPL_PRIORITY_TEARDOWN = 0, /* connection teardown messages */
49 CPL_PRIORITY_LISTEN = 1, /* listen start/stop messages */
50 CPL_PRIORITY_ACK = 1, /* RX ACK messages */
51 CPL_PRIORITY_CONTROL = 1 /* control messages */
52};
53
54#define INIT_TP_WR(w, tid) do { \
55 (w)->wr.wr_hi = htonl(FW_WR_OP(FW_TP_WR) | \
56 FW_WR_IMMDLEN(sizeof(*w) - sizeof(w->wr))); \
57 (w)->wr.wr_mid = htonl(FW_WR_LEN16(DIV_ROUND_UP(sizeof(*w), 16)) | \
58 FW_WR_FLOWID(tid)); \
59 (w)->wr.wr_lo = cpu_to_be64(0); \
60} while (0)
61
62#define INIT_TP_WR_CPL(w, cpl, tid) do { \
63 INIT_TP_WR(w, tid); \
64 OPCODE_TID(w) = htonl(MK_OPCODE_TID(cpl, tid)); \
65} while (0)
66
67#define INIT_ULPTX_WR(w, wrlen, atomic, tid) do { \
68 (w)->wr.wr_hi = htonl(FW_WR_OP(FW_ULPTX_WR) | FW_WR_ATOMIC(atomic)); \
69 (w)->wr.wr_mid = htonl(FW_WR_LEN16(DIV_ROUND_UP(wrlen, 16)) | \
70 FW_WR_FLOWID(tid)); \
71 (w)->wr.wr_lo = cpu_to_be64(0); \
72} while (0)
73
74/* Special asynchronous notification message */
75#define CXGB4_MSG_AN ((void *)1)
76
77struct serv_entry {
78 void *data;
79};
80
81union aopen_entry {
82 void *data;
83 union aopen_entry *next;
84};
85
86/*
87 * Holds the size, base address, free list start, etc of the TID, server TID,
88 * and active-open TID tables. The tables themselves are allocated dynamically.
89 */
90struct tid_info {
91 void **tid_tab;
92 unsigned int ntids;
93
94 struct serv_entry *stid_tab;
95 unsigned long *stid_bmap;
96 unsigned int nstids;
97 unsigned int stid_base;
98
99 union aopen_entry *atid_tab;
100 unsigned int natids;
f2b7e78d 101 unsigned int atid_base;
625ba2c2 102
f2b7e78d 103 struct filter_entry *ftid_tab;
625ba2c2
DM		 104 unsigned int nftids;
105 unsigned int ftid_base;
636f9d37
VP		 106 unsigned int aftid_base;
107 unsigned int aftid_end;
9a4da2cd
VP		 108 /* Server filter region */
109 unsigned int sftid_base;
110 unsigned int nsftids;
625ba2c2
DM		 111
112 spinlock_t atid_lock ____cacheline_aligned_in_smp;
113 union aopen_entry *afree;
114 unsigned int atids_in_use;
115
116 spinlock_t stid_lock;
117 unsigned int stids_in_use;
118
119 atomic_t tids_in_use;
120};
121
122static inline void *lookup_tid(const struct tid_info *t, unsigned int tid)
123{
124 return tid < t->ntids ? t->tid_tab[tid] : NULL;
125}
126
127static inline void *lookup_atid(const struct tid_info *t, unsigned int atid)
128{
129 return atid < t->natids ? t->atid_tab[atid].data : NULL;
130}
131
132static inline void *lookup_stid(const struct tid_info *t, unsigned int stid)
133{
470c60c4
KS		 134 /* Is it a server filter TID? */
135 if (t->nsftids && (stid >= t->sftid_base)) {
136 stid -= t->sftid_base;
137 stid += t->nstids;
138 } else {
139 stid -= t->stid_base;
140 }
141
dca4faeb 142 return stid < (t->nstids + t->nsftids) ? t->stid_tab[stid].data : NULL;
625ba2c2
DM		 143}
144
145static inline void cxgb4_insert_tid(struct tid_info *t, void *data,
146 unsigned int tid)
147{
148 t->tid_tab[tid] = data;
149 atomic_inc(&t->tids_in_use);
150}
151
152int cxgb4_alloc_atid(struct tid_info *t, void *data);
153int cxgb4_alloc_stid(struct tid_info *t, int family, void *data);
dca4faeb 154int cxgb4_alloc_sftid(struct tid_info *t, int family, void *data);
625ba2c2
DM		 155void cxgb4_free_atid(struct tid_info *t, unsigned int atid);
156void cxgb4_free_stid(struct tid_info *t, unsigned int stid, int family);
157void cxgb4_remove_tid(struct tid_info *t, unsigned int qid, unsigned int tid);
625ba2c2
DM		 158
159struct in6_addr;
160
161int cxgb4_create_server(const struct net_device *dev, unsigned int stid,
793dad94
VP		 162 __be32 sip, __be16 sport, __be16 vlan,
163 unsigned int queue);
80f40c1f
VP		 164int cxgb4_create_server6(const struct net_device *dev, unsigned int stid,
165 const struct in6_addr *sip, __be16 sport,
166 unsigned int queue);
167int cxgb4_remove_server(const struct net_device *dev, unsigned int stid,
168 unsigned int queue, bool ipv6);
dca4faeb 169int cxgb4_create_server_filter(const struct net_device *dev, unsigned int stid,
793dad94
VP		 170 __be32 sip, __be16 sport, __be16 vlan,
171 unsigned int queue,
172 unsigned char port, unsigned char mask);
dca4faeb
VP		 173int cxgb4_remove_server_filter(const struct net_device *dev, unsigned int stid,
174 unsigned int queue, bool ipv6);
625ba2c2
DM		 175static inline void set_wr_txq(struct sk_buff *skb, int prio, int queue)
176{
177 skb_set_queue_mapping(skb, (queue << 1) | prio);
178}
179
180enum cxgb4_uld {
181 CXGB4_ULD_RDMA,
182 CXGB4_ULD_ISCSI,
183 CXGB4_ULD_MAX
184};
185
186enum cxgb4_state {
187 CXGB4_STATE_UP,
188 CXGB4_STATE_START_RECOVERY,
189 CXGB4_STATE_DOWN,
190 CXGB4_STATE_DETACH
191};
192
881806bc
VP		 193enum cxgb4_control {
194 CXGB4_CONTROL_DB_FULL,
195 CXGB4_CONTROL_DB_EMPTY,
196 CXGB4_CONTROL_DB_DROP,
197};
198
625ba2c2
DM		 199struct pci_dev;
200struct l2t_data;
201struct net_device;
202struct pkt_gl;
203struct tp_tcp_stats;
204
205struct cxgb4_range {
206 unsigned int start;
207 unsigned int size;
208};
209
210struct cxgb4_virt_res { /* virtualized HW resources */
211 struct cxgb4_range ddp;
212 struct cxgb4_range iscsi;
213 struct cxgb4_range stag;
214 struct cxgb4_range rq;
215 struct cxgb4_range pbl;
a0881cab
DM		 216 struct cxgb4_range qp;
217 struct cxgb4_range cq;
1ae970e0 218 struct cxgb4_range ocq;
625ba2c2
DM		 219};
220
1ae970e0
DM		 221#define OCQ_WIN_OFFSET(pdev, vres) \
222 (pci_resource_len((pdev), 2) - roundup_pow_of_two((vres)->ocq.size))
223
625ba2c2
DM		 224/*
225 * Block of information the LLD provides to ULDs attaching to a device.
226 */
227struct cxgb4_lld_info {
228 struct pci_dev *pdev; /* associated PCI device */
229 struct l2t_data *l2t; /* L2 table */
230 struct tid_info *tids; /* TID table */
231 struct net_device **ports; /* device ports */
232 const struct cxgb4_virt_res *vr; /* assorted HW resources */
233 const unsigned short *mtus; /* MTU table */
234 const unsigned short *rxq_ids; /* the ULD's Rx queue ids */
cf38be6d 235 const unsigned short *ciq_ids; /* the ULD's concentrator IQ ids */
625ba2c2
DM		 236 unsigned short nrxq; /* # of Rx queues */
237 unsigned short ntxq; /* # of Tx queues */
cf38be6d 238 unsigned short nciq; /* # of concentrator IQ */
625ba2c2
DM		 239 unsigned char nchan:4; /* # of channels */
240 unsigned char nports:4; /* # of ports */
241 unsigned char wr_cred; /* WR 16-byte credits */
242 unsigned char adapter_type; /* type of adapter */
243 unsigned char fw_api_ver; /* FW API version */
244 unsigned int fw_vers; /* FW version */
245 unsigned int iscsi_iolen; /* iSCSI max I/O length */
7730b4c7 246 unsigned int cclk_ps; /* Core clock period in psec */
625ba2c2
DM		 247 unsigned short udb_density; /* # of user DB/page */
248 unsigned short ucq_density; /* # of user CQs/page */
dca4faeb
VP		 249 unsigned short filt_mode; /* filter optional components */
250 unsigned short tx_modq[NCHAN]; /* maps each tx channel to a */
251 /* scheduler queue */
625ba2c2
DM		 252 void __iomem *gts_reg; /* address of GTS register */
253 void __iomem *db_reg; /* address of kernel doorbell */
3069ee9b 254 int dbfifo_int_thresh; /* doorbell fifo int threshold */
04e10e21
HS		 255 unsigned int sge_ingpadboundary; /* SGE ingress padding boundary */
256 unsigned int sge_egrstatuspagesize; /* SGE egress status page size */
dca4faeb
VP		 257 unsigned int sge_pktshift; /* Padding between CPL and */
258 /* packet data */
35b1de55 259 unsigned int pf; /* Physical Function we're using */
dca4faeb
VP		 260 bool enable_fw_ofld_conn; /* Enable connection through fw */
261 /* WR */
4c2c5763
HS		 262 unsigned int max_ordird_qp; /* Max ORD/IRD depth per RDMA QP */
263 unsigned int max_ird_adapter; /* Max IRD memory per adapter */
1ac0f095 264 bool ulptx_memwrite_dsgl; /* use of T5 DSGL allowed */
625ba2c2
DM		 265};
266
267struct cxgb4_uld_info {
268 const char *name;
269 void *(*add)(const struct cxgb4_lld_info *p);
270 int (*rx_handler)(void *handle, const __be64 *rsp,
271 const struct pkt_gl *gl);
272 int (*state_change)(void *handle, enum cxgb4_state new_state);
3069ee9b 273 int (*control)(void *handle, enum cxgb4_control control, ...);
625ba2c2
DM		 274};
275
276int cxgb4_register_uld(enum cxgb4_uld type, const struct cxgb4_uld_info *p);
277int cxgb4_unregister_uld(enum cxgb4_uld type);
278int cxgb4_ofld_send(struct net_device *dev, struct sk_buff *skb);
881806bc 279unsigned int cxgb4_dbfifo_count(const struct net_device *dev, int lpfifo);
625ba2c2
DM		 280unsigned int cxgb4_port_chan(const struct net_device *dev);
281unsigned int cxgb4_port_viid(const struct net_device *dev);
282unsigned int cxgb4_port_idx(const struct net_device *dev);
625ba2c2
DM		 283unsigned int cxgb4_best_mtu(const unsigned short *mtus, unsigned short mtu,
284 unsigned int *idx);
92e7ae71
HS		 285unsigned int cxgb4_best_aligned_mtu(const unsigned short *mtus,
286 unsigned short header_size,
287 unsigned short data_size_max,
288 unsigned short data_size_align,
289 unsigned int *mtu_idxp);
625ba2c2
DM		 290void cxgb4_get_tcp_stats(struct pci_dev *pdev, struct tp_tcp_stats *v4,
291 struct tp_tcp_stats *v6);
292void cxgb4_iscsi_init(struct net_device *dev, unsigned int tag_mask,
293 const unsigned int *pgsz_order);
294struct sk_buff *cxgb4_pktgl_to_skb(const struct pkt_gl *gl,
295 unsigned int skb_len, unsigned int pull_len);
3069ee9b
VP		 296int cxgb4_sync_txq_pidx(struct net_device *dev, u16 qid, u16 pidx, u16 size);
297int cxgb4_flush_eq_cache(struct net_device *dev);
3cbdb928
VP		 298void cxgb4_disable_db_coalescing(struct net_device *dev);
299void cxgb4_enable_db_coalescing(struct net_device *dev);
031cf476 300int cxgb4_read_tpte(struct net_device *dev, u32 stag, __be32 *tpte);
7730b4c7 301u64 cxgb4_read_sge_timestamp(struct net_device *dev);
3cbdb928 302
625ba2c2 303#endif /* !__CXGB4_OFLD_H */
Linux kernel - Deliverables
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