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35#ifndef __CXGB4_ULD_H
36#define __CXGB4_ULD_H
37
38#include <linux/cache.h>
39#include <linux/spinlock.h>
40#include <linux/skbuff.h>
41#include <linux/inetdevice.h>
42#include <linux/atomic.h>
43#include "cxgb4.h"
44
45#define MAX_ULD_QSETS 16
46
47
48enum {
49 CPL_PRIORITY_DATA = 0,
50 CPL_PRIORITY_SETUP = 1,
51 CPL_PRIORITY_TEARDOWN = 0,
52 CPL_PRIORITY_LISTEN = 1,
53 CPL_PRIORITY_ACK = 1,
54 CPL_PRIORITY_CONTROL = 1
55};
56
57#define INIT_TP_WR(w, tid) do { \
58 (w)->wr.wr_hi = htonl(FW_WR_OP_V(FW_TP_WR) | \
59 FW_WR_IMMDLEN_V(sizeof(*w) - sizeof(w->wr))); \
60 (w)->wr.wr_mid = htonl(FW_WR_LEN16_V(DIV_ROUND_UP(sizeof(*w), 16)) | \
61 FW_WR_FLOWID_V(tid)); \
62 (w)->wr.wr_lo = cpu_to_be64(0); \
63} while (0)
64
65#define INIT_TP_WR_CPL(w, cpl, tid) do { \
66 INIT_TP_WR(w, tid); \
67 OPCODE_TID(w) = htonl(MK_OPCODE_TID(cpl, tid)); \
68} while (0)
69
70#define INIT_ULPTX_WR(w, wrlen, atomic, tid) do { \
71 (w)->wr.wr_hi = htonl(FW_WR_OP_V(FW_ULPTX_WR) | \
72 FW_WR_ATOMIC_V(atomic)); \
73 (w)->wr.wr_mid = htonl(FW_WR_LEN16_V(DIV_ROUND_UP(wrlen, 16)) | \
74 FW_WR_FLOWID_V(tid)); \
75 (w)->wr.wr_lo = cpu_to_be64(0); \
76} while (0)
77
78
79#define CXGB4_MSG_AN ((void *)1)
80
81struct serv_entry {
82 void *data;
83};
84
85union aopen_entry {
86 void *data;
87 union aopen_entry *next;
88};
89
90
91
92
93
94struct tid_info {
95 void **tid_tab;
96 unsigned int ntids;
97
98 struct serv_entry *stid_tab;
99 unsigned long *stid_bmap;
100 unsigned int nstids;
101 unsigned int stid_base;
102 unsigned int hash_base;
103
104 union aopen_entry *atid_tab;
105 unsigned int natids;
106 unsigned int atid_base;
107
108 struct filter_entry *ftid_tab;
109 unsigned long *ftid_bmap;
110 unsigned int nftids;
111 unsigned int ftid_base;
112 unsigned int aftid_base;
113 unsigned int aftid_end;
114
115 unsigned int sftid_base;
116 unsigned int nsftids;
117
118 spinlock_t atid_lock ____cacheline_aligned_in_smp;
119 union aopen_entry *afree;
120 unsigned int atids_in_use;
121
122 spinlock_t stid_lock;
123 unsigned int stids_in_use;
124 unsigned int sftids_in_use;
125
126
127 atomic_t tids_in_use;
128
129 atomic_t hash_tids_in_use;
130
131 spinlock_t ftid_lock;
132};
133
134static inline void *lookup_tid(const struct tid_info *t, unsigned int tid)
135{
136 return tid < t->ntids ? t->tid_tab[tid] : NULL;
137}
138
139static inline void *lookup_atid(const struct tid_info *t, unsigned int atid)
140{
141 return atid < t->natids ? t->atid_tab[atid].data : NULL;
142}
143
144static inline void *lookup_stid(const struct tid_info *t, unsigned int stid)
145{
146
147 if (t->nsftids && (stid >= t->sftid_base)) {
148 stid -= t->sftid_base;
149 stid += t->nstids;
150 } else {
151 stid -= t->stid_base;
152 }
153
154 return stid < (t->nstids + t->nsftids) ? t->stid_tab[stid].data : NULL;
155}
156
157static inline void cxgb4_insert_tid(struct tid_info *t, void *data,
158 unsigned int tid)
159{
160 t->tid_tab[tid] = data;
161 if (t->hash_base && (tid >= t->hash_base))
162 atomic_inc(&t->hash_tids_in_use);
163 else
164 atomic_inc(&t->tids_in_use);
165}
166
167int cxgb4_alloc_atid(struct tid_info *t, void *data);
168int cxgb4_alloc_stid(struct tid_info *t, int family, void *data);
169int cxgb4_alloc_sftid(struct tid_info *t, int family, void *data);
170void cxgb4_free_atid(struct tid_info *t, unsigned int atid);
171void cxgb4_free_stid(struct tid_info *t, unsigned int stid, int family);
172void cxgb4_remove_tid(struct tid_info *t, unsigned int qid, unsigned int tid);
173
174struct in6_addr;
175
176int cxgb4_create_server(const struct net_device *dev, unsigned int stid,
177 __be32 sip, __be16 sport, __be16 vlan,
178 unsigned int queue);
179int cxgb4_create_server6(const struct net_device *dev, unsigned int stid,
180 const struct in6_addr *sip, __be16 sport,
181 unsigned int queue);
182int cxgb4_remove_server(const struct net_device *dev, unsigned int stid,
183 unsigned int queue, bool ipv6);
184int cxgb4_create_server_filter(const struct net_device *dev, unsigned int stid,
185 __be32 sip, __be16 sport, __be16 vlan,
186 unsigned int queue,
187 unsigned char port, unsigned char mask);
188int cxgb4_remove_server_filter(const struct net_device *dev, unsigned int stid,
189 unsigned int queue, bool ipv6);
190
191
192
193
194struct filter_ctx {
195 struct completion completion;
196 void *closure;
197 int result;
198 u32 tid;
199};
200
201struct ch_filter_specification;
202
203int __cxgb4_set_filter(struct net_device *dev, int filter_id,
204 struct ch_filter_specification *fs,
205 struct filter_ctx *ctx);
206int __cxgb4_del_filter(struct net_device *dev, int filter_id,
207 struct filter_ctx *ctx);
208int cxgb4_set_filter(struct net_device *dev, int filter_id,
209 struct ch_filter_specification *fs);
210int cxgb4_del_filter(struct net_device *dev, int filter_id);
211
212static inline void set_wr_txq(struct sk_buff *skb, int prio, int queue)
213{
214 skb_set_queue_mapping(skb, (queue << 1) | prio);
215}
216
217enum cxgb4_uld {
218 CXGB4_ULD_INIT,
219 CXGB4_ULD_RDMA,
220 CXGB4_ULD_ISCSI,
221 CXGB4_ULD_ISCSIT,
222 CXGB4_ULD_CRYPTO,
223 CXGB4_ULD_MAX
224};
225
226enum cxgb4_state {
227 CXGB4_STATE_UP,
228 CXGB4_STATE_START_RECOVERY,
229 CXGB4_STATE_DOWN,
230 CXGB4_STATE_DETACH
231};
232
233enum cxgb4_control {
234 CXGB4_CONTROL_DB_FULL,
235 CXGB4_CONTROL_DB_EMPTY,
236 CXGB4_CONTROL_DB_DROP,
237};
238
239struct pci_dev;
240struct l2t_data;
241struct net_device;
242struct pkt_gl;
243struct tp_tcp_stats;
244struct t4_lro_mgr;
245
246struct cxgb4_range {
247 unsigned int start;
248 unsigned int size;
249};
250
251struct cxgb4_virt_res {
252 struct cxgb4_range ddp;
253 struct cxgb4_range iscsi;
254 struct cxgb4_range stag;
255 struct cxgb4_range rq;
256 struct cxgb4_range pbl;
257 struct cxgb4_range qp;
258 struct cxgb4_range cq;
259 struct cxgb4_range ocq;
260};
261
262#define OCQ_WIN_OFFSET(pdev, vres) \
263 (pci_resource_len((pdev), 2) - roundup_pow_of_two((vres)->ocq.size))
264
265
266
267
268struct cxgb4_lld_info {
269 struct pci_dev *pdev;
270 struct l2t_data *l2t;
271 struct tid_info *tids;
272 struct net_device **ports;
273 const struct cxgb4_virt_res *vr;
274 const unsigned short *mtus;
275 const unsigned short *rxq_ids;
276 const unsigned short *ciq_ids;
277 unsigned short nrxq;
278 unsigned short ntxq;
279 unsigned short nciq;
280 unsigned char nchan:4;
281 unsigned char nports:4;
282 unsigned char wr_cred;
283 unsigned char adapter_type;
284 unsigned char fw_api_ver;
285 unsigned int fw_vers;
286 unsigned int iscsi_iolen;
287 unsigned int cclk_ps;
288 unsigned short udb_density;
289 unsigned short ucq_density;
290 unsigned short filt_mode;
291 unsigned short tx_modq[NCHAN];
292
293 void __iomem *gts_reg;
294 void __iomem *db_reg;
295 int dbfifo_int_thresh;
296 unsigned int sge_ingpadboundary;
297 unsigned int sge_egrstatuspagesize;
298 unsigned int sge_pktshift;
299
300 unsigned int pf;
301 bool enable_fw_ofld_conn;
302
303 unsigned int max_ordird_qp;
304 unsigned int max_ird_adapter;
305 bool ulptx_memwrite_dsgl;
306 unsigned int iscsi_tagmask;
307 unsigned int iscsi_pgsz_order;
308 unsigned int iscsi_llimit;
309 void **iscsi_ppm;
310 int nodeid;
311 bool fr_nsmr_tpte_wr_support;
312};
313
314struct cxgb4_uld_info {
315 const char *name;
316 void *handle;
317 unsigned int nrxq;
318 unsigned int rxq_size;
319 bool ciq;
320 bool lro;
321 void *(*add)(const struct cxgb4_lld_info *p);
322 int (*rx_handler)(void *handle, const __be64 *rsp,
323 const struct pkt_gl *gl);
324 int (*state_change)(void *handle, enum cxgb4_state new_state);
325 int (*control)(void *handle, enum cxgb4_control control, ...);
326 int (*lro_rx_handler)(void *handle, const __be64 *rsp,
327 const struct pkt_gl *gl,
328 struct t4_lro_mgr *lro_mgr,
329 struct napi_struct *napi);
330 void (*lro_flush)(struct t4_lro_mgr *);
331};
332
333int cxgb4_register_uld(enum cxgb4_uld type, const struct cxgb4_uld_info *p);
334int cxgb4_unregister_uld(enum cxgb4_uld type);
335int cxgb4_ofld_send(struct net_device *dev, struct sk_buff *skb);
336unsigned int cxgb4_dbfifo_count(const struct net_device *dev, int lpfifo);
337unsigned int cxgb4_port_chan(const struct net_device *dev);
338unsigned int cxgb4_port_viid(const struct net_device *dev);
339unsigned int cxgb4_tp_smt_idx(enum chip_type chip, unsigned int viid);
340unsigned int cxgb4_port_idx(const struct net_device *dev);
341unsigned int cxgb4_best_mtu(const unsigned short *mtus, unsigned short mtu,
342 unsigned int *idx);
343unsigned int cxgb4_best_aligned_mtu(const unsigned short *mtus,
344 unsigned short header_size,
345 unsigned short data_size_max,
346 unsigned short data_size_align,
347 unsigned int *mtu_idxp);
348void cxgb4_get_tcp_stats(struct pci_dev *pdev, struct tp_tcp_stats *v4,
349 struct tp_tcp_stats *v6);
350void cxgb4_iscsi_init(struct net_device *dev, unsigned int tag_mask,
351 const unsigned int *pgsz_order);
352struct sk_buff *cxgb4_pktgl_to_skb(const struct pkt_gl *gl,
353 unsigned int skb_len, unsigned int pull_len);
354int cxgb4_sync_txq_pidx(struct net_device *dev, u16 qid, u16 pidx, u16 size);
355int cxgb4_flush_eq_cache(struct net_device *dev);
356int cxgb4_read_tpte(struct net_device *dev, u32 stag, __be32 *tpte);
357u64 cxgb4_read_sge_timestamp(struct net_device *dev);
358
359enum cxgb4_bar2_qtype { CXGB4_BAR2_QTYPE_EGRESS, CXGB4_BAR2_QTYPE_INGRESS };
360int cxgb4_bar2_sge_qregs(struct net_device *dev,
361 unsigned int qid,
362 enum cxgb4_bar2_qtype qtype,
363 int user,
364 u64 *pbar2_qoffset,
365 unsigned int *pbar2_qid);
366
367#endif
368