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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 <net/tls.h>
44#include "cxgb4.h"
45
46#define MAX_ULD_QSETS 16
47#define MAX_ULD_NPORTS 4
48
49
50#define MAX_IMM_ULPTX_WR_LEN (32 + 8 + 256 + 8)
51
52
53enum {
54 CPL_PRIORITY_DATA = 0,
55 CPL_PRIORITY_SETUP = 1,
56 CPL_PRIORITY_TEARDOWN = 0,
57 CPL_PRIORITY_LISTEN = 1,
58 CPL_PRIORITY_ACK = 1,
59 CPL_PRIORITY_CONTROL = 1
60};
61
62#define INIT_TP_WR(w, tid) do { \
63 (w)->wr.wr_hi = htonl(FW_WR_OP_V(FW_TP_WR) | \
64 FW_WR_IMMDLEN_V(sizeof(*w) - sizeof(w->wr))); \
65 (w)->wr.wr_mid = htonl(FW_WR_LEN16_V(DIV_ROUND_UP(sizeof(*w), 16)) | \
66 FW_WR_FLOWID_V(tid)); \
67 (w)->wr.wr_lo = cpu_to_be64(0); \
68} while (0)
69
70#define INIT_TP_WR_CPL(w, cpl, tid) do { \
71 INIT_TP_WR(w, tid); \
72 OPCODE_TID(w) = htonl(MK_OPCODE_TID(cpl, tid)); \
73} while (0)
74
75#define INIT_ULPTX_WR(w, wrlen, atomic, tid) do { \
76 (w)->wr.wr_hi = htonl(FW_WR_OP_V(FW_ULPTX_WR) | \
77 FW_WR_ATOMIC_V(atomic)); \
78 (w)->wr.wr_mid = htonl(FW_WR_LEN16_V(DIV_ROUND_UP(wrlen, 16)) | \
79 FW_WR_FLOWID_V(tid)); \
80 (w)->wr.wr_lo = cpu_to_be64(0); \
81} while (0)
82
83
84#define CXGB4_MSG_AN ((void *)1)
85#define TX_ULD(uld)(((uld) != CXGB4_ULD_CRYPTO) ? CXGB4_TX_OFLD :\
86 CXGB4_TX_CRYPTO)
87
88struct serv_entry {
89 void *data;
90};
91
92union aopen_entry {
93 void *data;
94 union aopen_entry *next;
95};
96
97struct eotid_entry {
98 void *data;
99};
100
101
102
103
104
105struct tid_info {
106 void **tid_tab;
107 unsigned int tid_base;
108 unsigned int ntids;
109
110 struct serv_entry *stid_tab;
111 unsigned long *stid_bmap;
112 unsigned int nstids;
113 unsigned int stid_base;
114
115 unsigned int nhash;
116 unsigned int hash_base;
117
118 union aopen_entry *atid_tab;
119 unsigned int natids;
120 unsigned int atid_base;
121
122 struct filter_entry *hpftid_tab;
123 unsigned long *hpftid_bmap;
124 unsigned int nhpftids;
125 unsigned int hpftid_base;
126
127 struct filter_entry *ftid_tab;
128 unsigned long *ftid_bmap;
129 unsigned int nftids;
130 unsigned int ftid_base;
131 unsigned int aftid_base;
132 unsigned int aftid_end;
133
134 unsigned int sftid_base;
135 unsigned int nsftids;
136
137 spinlock_t atid_lock ____cacheline_aligned_in_smp;
138 union aopen_entry *afree;
139 unsigned int atids_in_use;
140
141 spinlock_t stid_lock;
142 unsigned int stids_in_use;
143 unsigned int v6_stids_in_use;
144 unsigned int sftids_in_use;
145
146
147 struct eotid_entry *eotid_tab;
148 unsigned long *eotid_bmap;
149 unsigned int eotid_base;
150 unsigned int neotids;
151
152
153 atomic_t tids_in_use;
154
155 atomic_t hash_tids_in_use;
156 atomic_t conns_in_use;
157
158 atomic_t eotids_in_use;
159
160
161 spinlock_t ftid_lock;
162
163 unsigned int tc_hash_tids_max_prio;
164};
165
166static inline void *lookup_tid(const struct tid_info *t, unsigned int tid)
167{
168 tid -= t->tid_base;
169 return tid < t->ntids ? t->tid_tab[tid] : NULL;
170}
171
172static inline bool tid_out_of_range(const struct tid_info *t, unsigned int tid)
173{
174 return ((tid - t->tid_base) >= t->ntids);
175}
176
177static inline void *lookup_atid(const struct tid_info *t, unsigned int atid)
178{
179 return atid < t->natids ? t->atid_tab[atid].data : NULL;
180}
181
182static inline void *lookup_stid(const struct tid_info *t, unsigned int stid)
183{
184
185 if (t->nsftids && (stid >= t->sftid_base)) {
186 stid -= t->sftid_base;
187 stid += t->nstids;
188 } else {
189 stid -= t->stid_base;
190 }
191
192 return stid < (t->nstids + t->nsftids) ? t->stid_tab[stid].data : NULL;
193}
194
195static inline void cxgb4_insert_tid(struct tid_info *t, void *data,
196 unsigned int tid, unsigned short family)
197{
198 t->tid_tab[tid - t->tid_base] = data;
199 if (t->hash_base && (tid >= t->hash_base)) {
200 if (family == AF_INET6)
201 atomic_add(2, &t->hash_tids_in_use);
202 else
203 atomic_inc(&t->hash_tids_in_use);
204 } else {
205 if (family == AF_INET6)
206 atomic_add(2, &t->tids_in_use);
207 else
208 atomic_inc(&t->tids_in_use);
209 }
210 atomic_inc(&t->conns_in_use);
211}
212
213static inline struct eotid_entry *cxgb4_lookup_eotid(struct tid_info *t,
214 u32 eotid)
215{
216 return eotid < t->neotids ? &t->eotid_tab[eotid] : NULL;
217}
218
219static inline int cxgb4_get_free_eotid(struct tid_info *t)
220{
221 int eotid;
222
223 eotid = find_first_zero_bit(t->eotid_bmap, t->neotids);
224 if (eotid >= t->neotids)
225 eotid = -1;
226
227 return eotid;
228}
229
230static inline void cxgb4_alloc_eotid(struct tid_info *t, u32 eotid, void *data)
231{
232 set_bit(eotid, t->eotid_bmap);
233 t->eotid_tab[eotid].data = data;
234 atomic_inc(&t->eotids_in_use);
235}
236
237static inline void cxgb4_free_eotid(struct tid_info *t, u32 eotid)
238{
239 clear_bit(eotid, t->eotid_bmap);
240 t->eotid_tab[eotid].data = NULL;
241 atomic_dec(&t->eotids_in_use);
242}
243
244int cxgb4_alloc_atid(struct tid_info *t, void *data);
245int cxgb4_alloc_stid(struct tid_info *t, int family, void *data);
246int cxgb4_alloc_sftid(struct tid_info *t, int family, void *data);
247void cxgb4_free_atid(struct tid_info *t, unsigned int atid);
248void cxgb4_free_stid(struct tid_info *t, unsigned int stid, int family);
249void cxgb4_remove_tid(struct tid_info *t, unsigned int qid, unsigned int tid,
250 unsigned short family);
251struct in6_addr;
252
253int cxgb4_create_server(const struct net_device *dev, unsigned int stid,
254 __be32 sip, __be16 sport, __be16 vlan,
255 unsigned int queue);
256int cxgb4_create_server6(const struct net_device *dev, unsigned int stid,
257 const struct in6_addr *sip, __be16 sport,
258 unsigned int queue);
259int cxgb4_remove_server(const struct net_device *dev, unsigned int stid,
260 unsigned int queue, bool ipv6);
261int cxgb4_create_server_filter(const struct net_device *dev, unsigned int stid,
262 __be32 sip, __be16 sport, __be16 vlan,
263 unsigned int queue,
264 unsigned char port, unsigned char mask);
265int cxgb4_remove_server_filter(const struct net_device *dev, unsigned int stid,
266 unsigned int queue, bool ipv6);
267
268
269
270
271struct filter_ctx {
272 struct completion completion;
273 void *closure;
274 int result;
275 u32 tid;
276};
277
278struct chcr_ktls {
279 refcount_t ktls_refcount;
280};
281
282struct ch_filter_specification;
283
284int cxgb4_get_free_ftid(struct net_device *dev, u8 family, bool hash_en,
285 u32 tc_prio);
286int __cxgb4_set_filter(struct net_device *dev, int filter_id,
287 struct ch_filter_specification *fs,
288 struct filter_ctx *ctx);
289int __cxgb4_del_filter(struct net_device *dev, int filter_id,
290 struct ch_filter_specification *fs,
291 struct filter_ctx *ctx);
292int cxgb4_set_filter(struct net_device *dev, int filter_id,
293 struct ch_filter_specification *fs);
294int cxgb4_del_filter(struct net_device *dev, int filter_id,
295 struct ch_filter_specification *fs);
296int cxgb4_get_filter_counters(struct net_device *dev, unsigned int fidx,
297 u64 *hitcnt, u64 *bytecnt, bool hash);
298
299static inline void set_wr_txq(struct sk_buff *skb, int prio, int queue)
300{
301 skb_set_queue_mapping(skb, (queue << 1) | prio);
302}
303
304enum cxgb4_uld {
305 CXGB4_ULD_INIT,
306 CXGB4_ULD_RDMA,
307 CXGB4_ULD_ISCSI,
308 CXGB4_ULD_ISCSIT,
309 CXGB4_ULD_CRYPTO,
310 CXGB4_ULD_IPSEC,
311 CXGB4_ULD_TLS,
312 CXGB4_ULD_KTLS,
313 CXGB4_ULD_MAX
314};
315
316enum cxgb4_tx_uld {
317 CXGB4_TX_OFLD,
318 CXGB4_TX_CRYPTO,
319 CXGB4_TX_MAX
320};
321
322enum cxgb4_txq_type {
323 CXGB4_TXQ_ETH,
324 CXGB4_TXQ_ULD,
325 CXGB4_TXQ_CTRL,
326 CXGB4_TXQ_MAX
327};
328
329enum cxgb4_state {
330 CXGB4_STATE_UP,
331 CXGB4_STATE_START_RECOVERY,
332 CXGB4_STATE_DOWN,
333 CXGB4_STATE_DETACH,
334 CXGB4_STATE_FATAL_ERROR
335};
336
337enum cxgb4_control {
338 CXGB4_CONTROL_DB_FULL,
339 CXGB4_CONTROL_DB_EMPTY,
340 CXGB4_CONTROL_DB_DROP,
341};
342
343struct adapter;
344struct pci_dev;
345struct l2t_data;
346struct net_device;
347struct pkt_gl;
348struct tp_tcp_stats;
349struct t4_lro_mgr;
350
351struct cxgb4_range {
352 unsigned int start;
353 unsigned int size;
354};
355
356struct cxgb4_virt_res {
357 struct cxgb4_range ddp;
358 struct cxgb4_range iscsi;
359 struct cxgb4_range stag;
360 struct cxgb4_range rq;
361 struct cxgb4_range srq;
362 struct cxgb4_range pbl;
363 struct cxgb4_range qp;
364 struct cxgb4_range cq;
365 struct cxgb4_range ocq;
366 struct cxgb4_range key;
367 unsigned int ncrypto_fc;
368 struct cxgb4_range ppod_edram;
369};
370
371#if IS_ENABLED(CONFIG_CHELSIO_TLS_DEVICE)
372struct ch_ktls_port_stats_debug {
373 atomic64_t ktls_tx_connection_open;
374 atomic64_t ktls_tx_connection_fail;
375 atomic64_t ktls_tx_connection_close;
376 atomic64_t ktls_tx_encrypted_packets;
377 atomic64_t ktls_tx_encrypted_bytes;
378 atomic64_t ktls_tx_ctx;
379 atomic64_t ktls_tx_ooo;
380 atomic64_t ktls_tx_skip_no_sync_data;
381 atomic64_t ktls_tx_drop_no_sync_data;
382 atomic64_t ktls_tx_drop_bypass_req;
383};
384
385struct ch_ktls_stats_debug {
386 struct ch_ktls_port_stats_debug ktls_port[MAX_ULD_NPORTS];
387 atomic64_t ktls_tx_send_records;
388 atomic64_t ktls_tx_end_pkts;
389 atomic64_t ktls_tx_start_pkts;
390 atomic64_t ktls_tx_middle_pkts;
391 atomic64_t ktls_tx_retransmit_pkts;
392 atomic64_t ktls_tx_complete_pkts;
393 atomic64_t ktls_tx_trimmed_pkts;
394 atomic64_t ktls_tx_fallback;
395};
396#endif
397
398struct chcr_stats_debug {
399 atomic_t cipher_rqst;
400 atomic_t digest_rqst;
401 atomic_t aead_rqst;
402 atomic_t complete;
403 atomic_t error;
404 atomic_t fallback;
405 atomic_t tls_pdu_tx;
406 atomic_t tls_pdu_rx;
407 atomic_t tls_key;
408};
409
410#if IS_ENABLED(CONFIG_CHELSIO_IPSEC_INLINE)
411struct ch_ipsec_stats_debug {
412 atomic_t ipsec_cnt;
413};
414#endif
415
416#define OCQ_WIN_OFFSET(pdev, vres) \
417 (pci_resource_len((pdev), 2) - roundup_pow_of_two((vres)->ocq.size))
418
419
420
421
422struct cxgb4_lld_info {
423 struct pci_dev *pdev;
424 struct l2t_data *l2t;
425 struct tid_info *tids;
426 struct net_device **ports;
427 const struct cxgb4_virt_res *vr;
428 const unsigned short *mtus;
429 const unsigned short *rxq_ids;
430 const unsigned short *ciq_ids;
431 unsigned short nrxq;
432 unsigned short ntxq;
433 unsigned short nciq;
434 unsigned char nchan:4;
435 unsigned char nports:4;
436 unsigned char wr_cred;
437 unsigned char adapter_type;
438 unsigned char fw_api_ver;
439 unsigned char crypto;
440 unsigned int fw_vers;
441 unsigned int iscsi_iolen;
442 unsigned int cclk_ps;
443 unsigned short udb_density;
444 unsigned short ucq_density;
445 unsigned int sge_host_page_size;
446 unsigned short filt_mode;
447 unsigned short tx_modq[NCHAN];
448
449 void __iomem *gts_reg;
450 void __iomem *db_reg;
451 int dbfifo_int_thresh;
452 unsigned int sge_ingpadboundary;
453 unsigned int sge_egrstatuspagesize;
454 unsigned int sge_pktshift;
455
456 unsigned int pf;
457 bool enable_fw_ofld_conn;
458
459 unsigned int max_ordird_qp;
460 unsigned int max_ird_adapter;
461 bool ulptx_memwrite_dsgl;
462 unsigned int iscsi_tagmask;
463 unsigned int iscsi_pgsz_order;
464 unsigned int iscsi_llimit;
465 unsigned int ulp_crypto;
466 void **iscsi_ppm;
467 int nodeid;
468 bool fr_nsmr_tpte_wr_support;
469 bool write_w_imm_support;
470 bool write_cmpl_support;
471};
472
473struct cxgb4_uld_info {
474 char name[IFNAMSIZ];
475 void *handle;
476 unsigned int nrxq;
477 unsigned int rxq_size;
478 unsigned int ntxq;
479 bool ciq;
480 bool lro;
481 void *(*add)(const struct cxgb4_lld_info *p);
482 int (*rx_handler)(void *handle, const __be64 *rsp,
483 const struct pkt_gl *gl);
484 int (*state_change)(void *handle, enum cxgb4_state new_state);
485 int (*control)(void *handle, enum cxgb4_control control, ...);
486 int (*lro_rx_handler)(void *handle, const __be64 *rsp,
487 const struct pkt_gl *gl,
488 struct t4_lro_mgr *lro_mgr,
489 struct napi_struct *napi);
490 void (*lro_flush)(struct t4_lro_mgr *);
491 int (*tx_handler)(struct sk_buff *skb, struct net_device *dev);
492#if IS_ENABLED(CONFIG_CHELSIO_TLS_DEVICE)
493 const struct tlsdev_ops *tlsdev_ops;
494#endif
495#if IS_ENABLED(CONFIG_XFRM_OFFLOAD)
496 const struct xfrmdev_ops *xfrmdev_ops;
497#endif
498};
499
500static inline bool cxgb4_is_ktls_skb(struct sk_buff *skb)
501{
502 return skb->sk && tls_is_sk_tx_device_offloaded(skb->sk);
503}
504
505void cxgb4_uld_enable(struct adapter *adap);
506void cxgb4_register_uld(enum cxgb4_uld type, const struct cxgb4_uld_info *p);
507int cxgb4_unregister_uld(enum cxgb4_uld type);
508int cxgb4_ofld_send(struct net_device *dev, struct sk_buff *skb);
509int cxgb4_immdata_send(struct net_device *dev, unsigned int idx,
510 const void *src, unsigned int len);
511int cxgb4_crypto_send(struct net_device *dev, struct sk_buff *skb);
512unsigned int cxgb4_dbfifo_count(const struct net_device *dev, int lpfifo);
513unsigned int cxgb4_port_chan(const struct net_device *dev);
514unsigned int cxgb4_port_e2cchan(const struct net_device *dev);
515unsigned int cxgb4_port_viid(const struct net_device *dev);
516unsigned int cxgb4_tp_smt_idx(enum chip_type chip, unsigned int viid);
517unsigned int cxgb4_port_idx(const struct net_device *dev);
518unsigned int cxgb4_best_mtu(const unsigned short *mtus, unsigned short mtu,
519 unsigned int *idx);
520unsigned int cxgb4_best_aligned_mtu(const unsigned short *mtus,
521 unsigned short header_size,
522 unsigned short data_size_max,
523 unsigned short data_size_align,
524 unsigned int *mtu_idxp);
525void cxgb4_get_tcp_stats(struct pci_dev *pdev, struct tp_tcp_stats *v4,
526 struct tp_tcp_stats *v6);
527void cxgb4_iscsi_init(struct net_device *dev, unsigned int tag_mask,
528 const unsigned int *pgsz_order);
529struct sk_buff *cxgb4_pktgl_to_skb(const struct pkt_gl *gl,
530 unsigned int skb_len, unsigned int pull_len);
531int cxgb4_sync_txq_pidx(struct net_device *dev, u16 qid, u16 pidx, u16 size);
532int cxgb4_flush_eq_cache(struct net_device *dev);
533int cxgb4_read_tpte(struct net_device *dev, u32 stag, __be32 *tpte);
534u64 cxgb4_read_sge_timestamp(struct net_device *dev);
535
536enum cxgb4_bar2_qtype { CXGB4_BAR2_QTYPE_EGRESS, CXGB4_BAR2_QTYPE_INGRESS };
537int cxgb4_bar2_sge_qregs(struct net_device *dev,
538 unsigned int qid,
539 enum cxgb4_bar2_qtype qtype,
540 int user,
541 u64 *pbar2_qoffset,
542 unsigned int *pbar2_qid);
543
544#endif
545