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34#ifndef __NES_H
35#define __NES_H
36
37#include <linux/netdevice.h>
38#include <linux/inetdevice.h>
39#include <linux/spinlock.h>
40#include <linux/kernel.h>
41#include <linux/delay.h>
42#include <linux/pci.h>
43#include <linux/dma-mapping.h>
44#include <linux/workqueue.h>
45#include <linux/slab.h>
46#include <asm/io.h>
47#include <linux/crc32c.h>
48
49#include <rdma/ib_smi.h>
50#include <rdma/ib_verbs.h>
51#include <rdma/ib_pack.h>
52#include <rdma/rdma_cm.h>
53#include <rdma/iw_cm.h>
54
55#define NES_SEND_FIRST_WRITE
56
57#define QUEUE_DISCONNECTS
58
59#define DRV_NAME "iw_nes"
60#define DRV_VERSION "1.5.0.0"
61#define PFX DRV_NAME ": "
62
63
64
65
66#ifndef PCI_VENDOR_ID_NETEFFECT
67#define PCI_VENDOR_ID_NETEFFECT 0x1678
68#define PCI_DEVICE_ID_NETEFFECT_NE020 0x0100
69#endif
70
71#define NE020_REV 4
72#define NE020_REV1 5
73
74#define BAR_0 0
75#define BAR_1 2
76
77#define RX_BUF_SIZE (1536 + 8)
78#define NES_REG0_SIZE (4 * 1024)
79#define NES_TX_TIMEOUT (6*HZ)
80#define NES_FIRST_QPN 64
81#define NES_SW_CONTEXT_ALIGN 1024
82
83#define NES_NIC_MAX_NICS 16
84#define NES_MAX_ARP_TABLE_SIZE 4096
85
86#define NES_NIC_CEQ_SIZE 8
87
88#define NES_CCEQ_SIZE ((nesadapter->max_cq / nesadapter->port_count) - 32)
89
90#define NES_MAX_PORT_COUNT 4
91
92#define MAX_DPC_ITERATIONS 128
93
94#define NES_DRV_OPT_ENABLE_MPA_VER_0 0x00000001
95#define NES_DRV_OPT_DISABLE_MPA_CRC 0x00000002
96#define NES_DRV_OPT_DISABLE_FIRST_WRITE 0x00000004
97#define NES_DRV_OPT_DISABLE_INTF 0x00000008
98#define NES_DRV_OPT_ENABLE_MSI 0x00000010
99#define NES_DRV_OPT_DUAL_LOGICAL_PORT 0x00000020
100#define NES_DRV_OPT_SUPRESS_OPTION_BC 0x00000040
101#define NES_DRV_OPT_NO_INLINE_DATA 0x00000080
102#define NES_DRV_OPT_DISABLE_INT_MOD 0x00000100
103#define NES_DRV_OPT_DISABLE_VIRT_WQ 0x00000200
104
105#define NES_AEQ_EVENT_TIMEOUT 2500
106#define NES_DISCONNECT_EVENT_TIMEOUT 2000
107
108
109
110#define NES_DBG_HW 0x00000001
111#define NES_DBG_INIT 0x00000002
112#define NES_DBG_ISR 0x00000004
113#define NES_DBG_PHY 0x00000008
114#define NES_DBG_NETDEV 0x00000010
115#define NES_DBG_CM 0x00000020
116#define NES_DBG_CM1 0x00000040
117#define NES_DBG_NIC_RX 0x00000080
118#define NES_DBG_NIC_TX 0x00000100
119#define NES_DBG_CQP 0x00000200
120#define NES_DBG_MMAP 0x00000400
121#define NES_DBG_MR 0x00000800
122#define NES_DBG_PD 0x00001000
123#define NES_DBG_CQ 0x00002000
124#define NES_DBG_QP 0x00004000
125#define NES_DBG_MOD_QP 0x00008000
126#define NES_DBG_AEQ 0x00010000
127#define NES_DBG_IW_RX 0x00020000
128#define NES_DBG_IW_TX 0x00040000
129#define NES_DBG_SHUTDOWN 0x00080000
130#define NES_DBG_RSVD1 0x10000000
131#define NES_DBG_RSVD2 0x20000000
132#define NES_DBG_RSVD3 0x40000000
133#define NES_DBG_RSVD4 0x80000000
134#define NES_DBG_ALL 0xffffffff
135
136#ifdef CONFIG_INFINIBAND_NES_DEBUG
137#define nes_debug(level, fmt, args...) \
138do { \
139 if (level & nes_debug_level) \
140 printk(KERN_ERR PFX "%s[%u]: " fmt, __func__, __LINE__, ##args); \
141} while (0)
142
143#define assert(expr) \
144do { \
145 if (!(expr)) { \
146 printk(KERN_ERR PFX "Assertion failed! %s, %s, %s, line %d\n", \
147 #expr, __FILE__, __func__, __LINE__); \
148 } \
149} while (0)
150
151#define NES_EVENT_TIMEOUT 1200000
152#else
153#define nes_debug(level, fmt, args...)
154#define assert(expr) do {} while (0)
155
156#define NES_EVENT_TIMEOUT 100000
157#endif
158
159#include "nes_hw.h"
160#include "nes_verbs.h"
161#include "nes_context.h"
162#include "nes_user.h"
163#include "nes_cm.h"
164
165extern int max_mtu;
166#define max_frame_len (max_mtu+ETH_HLEN)
167extern int interrupt_mod_interval;
168extern int nes_if_count;
169extern int mpa_version;
170extern int disable_mpa_crc;
171extern unsigned int send_first;
172extern unsigned int nes_drv_opt;
173extern unsigned int nes_debug_level;
174extern unsigned int wqm_quanta;
175extern struct list_head nes_adapter_list;
176
177extern atomic_t cm_connects;
178extern atomic_t cm_accepts;
179extern atomic_t cm_disconnects;
180extern atomic_t cm_closes;
181extern atomic_t cm_connecteds;
182extern atomic_t cm_connect_reqs;
183extern atomic_t cm_rejects;
184extern atomic_t mod_qp_timouts;
185extern atomic_t qps_created;
186extern atomic_t qps_destroyed;
187extern atomic_t sw_qps_destroyed;
188extern u32 mh_detected;
189extern u32 mh_pauses_sent;
190extern u32 cm_packets_sent;
191extern u32 cm_packets_bounced;
192extern u32 cm_packets_created;
193extern u32 cm_packets_received;
194extern u32 cm_packets_dropped;
195extern u32 cm_packets_retrans;
196extern u32 cm_listens_created;
197extern u32 cm_listens_destroyed;
198extern u32 cm_backlog_drops;
199extern atomic_t cm_loopbacks;
200extern atomic_t cm_nodes_created;
201extern atomic_t cm_nodes_destroyed;
202extern atomic_t cm_accel_dropped_pkts;
203extern atomic_t cm_resets_recvd;
204
205extern u32 int_mod_timer_init;
206extern u32 int_mod_cq_depth_256;
207extern u32 int_mod_cq_depth_128;
208extern u32 int_mod_cq_depth_32;
209extern u32 int_mod_cq_depth_24;
210extern u32 int_mod_cq_depth_16;
211extern u32 int_mod_cq_depth_4;
212extern u32 int_mod_cq_depth_1;
213
214struct nes_device {
215 struct nes_adapter *nesadapter;
216 void __iomem *regs;
217 void __iomem *index_reg;
218 struct pci_dev *pcidev;
219 struct net_device *netdev[NES_NIC_MAX_NICS];
220 u64 link_status_interrupts;
221 struct tasklet_struct dpc_tasklet;
222 spinlock_t indexed_regs_lock;
223 unsigned long csr_start;
224 unsigned long doorbell_region;
225 unsigned long doorbell_start;
226 unsigned long mac_tx_errors;
227 unsigned long mac_pause_frames_sent;
228 unsigned long mac_pause_frames_received;
229 unsigned long mac_rx_errors;
230 unsigned long mac_rx_crc_errors;
231 unsigned long mac_rx_symbol_err_frames;
232 unsigned long mac_rx_jabber_frames;
233 unsigned long mac_rx_oversized_frames;
234 unsigned long mac_rx_short_frames;
235 unsigned long port_rx_discards;
236 unsigned long port_tx_discards;
237 unsigned int mac_index;
238 unsigned int nes_stack_start;
239
240
241 void *cqp_vbase;
242 dma_addr_t cqp_pbase;
243 u32 cqp_mem_size;
244 u8 ceq_index;
245 u8 nic_ceq_index;
246 struct nes_hw_cqp cqp;
247 struct nes_hw_cq ccq;
248 struct list_head cqp_avail_reqs;
249 struct list_head cqp_pending_reqs;
250 struct nes_cqp_request *nes_cqp_requests;
251
252 u32 int_req;
253 u32 int_stat;
254 u32 timer_int_req;
255 u32 timer_only_int_count;
256 u32 intf_int_req;
257 u32 last_mac_tx_pauses;
258 u32 last_used_chunks_tx;
259 struct list_head list;
260
261 u16 base_doorbell_index;
262 u16 currcq_count;
263 u16 deepcq_count;
264 u8 msi_enabled;
265 u8 netdev_count;
266 u8 napi_isr_ran;
267 u8 disable_rx_flow_control;
268 u8 disable_tx_flow_control;
269};
270
271
272static inline __le32 get_crc_value(struct nes_v4_quad *nes_quad)
273{
274 u32 crc_value;
275 crc_value = crc32c(~0, (void *)nes_quad, sizeof (struct nes_v4_quad));
276
277
278
279
280
281
282
283
284 return cpu_to_le32(crc_value);
285}
286
287static inline void
288set_wqe_64bit_value(__le32 *wqe_words, u32 index, u64 value)
289{
290 wqe_words[index] = cpu_to_le32((u32) value);
291 wqe_words[index + 1] = cpu_to_le32(upper_32_bits(value));
292}
293
294static inline void
295set_wqe_32bit_value(__le32 *wqe_words, u32 index, u32 value)
296{
297 wqe_words[index] = cpu_to_le32(value);
298}
299
300static inline void
301nes_fill_init_cqp_wqe(struct nes_hw_cqp_wqe *cqp_wqe, struct nes_device *nesdev)
302{
303 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_COMP_CTX_LOW_IDX,
304 (u64)((unsigned long) &nesdev->cqp));
305 cqp_wqe->wqe_words[NES_CQP_WQE_COMP_SCRATCH_LOW_IDX] = 0;
306 cqp_wqe->wqe_words[NES_CQP_WQE_COMP_SCRATCH_HIGH_IDX] = 0;
307 cqp_wqe->wqe_words[NES_CQP_STAG_WQE_PBL_BLK_COUNT_IDX] = 0;
308 cqp_wqe->wqe_words[NES_CQP_STAG_WQE_PBL_LEN_IDX] = 0;
309 cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_LOW_IDX] = 0;
310 cqp_wqe->wqe_words[NES_CQP_STAG_WQE_PA_LOW_IDX] = 0;
311 cqp_wqe->wqe_words[NES_CQP_STAG_WQE_PA_HIGH_IDX] = 0;
312}
313
314static inline void
315nes_fill_init_qp_wqe(struct nes_hw_qp_wqe *wqe, struct nes_qp *nesqp, u32 head)
316{
317 u32 value;
318 value = ((u32)((unsigned long) nesqp)) | head;
319 set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_CTX_HIGH_IDX,
320 (u32)(upper_32_bits((unsigned long)(nesqp))));
321 set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX, value);
322}
323
324
325static inline u32 nes_read_indexed(struct nes_device *nesdev, u32 reg_index)
326{
327 unsigned long flags;
328 void __iomem *addr = nesdev->index_reg;
329 u32 value;
330
331 spin_lock_irqsave(&nesdev->indexed_regs_lock, flags);
332
333 writel(reg_index, addr);
334 value = readl((void __iomem *)addr + 4);
335
336 spin_unlock_irqrestore(&nesdev->indexed_regs_lock, flags);
337 return value;
338}
339
340static inline u32 nes_read32(const void __iomem *addr)
341{
342 return readl(addr);
343}
344
345static inline u16 nes_read16(const void __iomem *addr)
346{
347 return readw(addr);
348}
349
350static inline u8 nes_read8(const void __iomem *addr)
351{
352 return readb(addr);
353}
354
355
356static inline void nes_write_indexed(struct nes_device *nesdev, u32 reg_index, u32 val)
357{
358 unsigned long flags;
359 void __iomem *addr = nesdev->index_reg;
360
361 spin_lock_irqsave(&nesdev->indexed_regs_lock, flags);
362
363 writel(reg_index, addr);
364 writel(val, (void __iomem *)addr + 4);
365
366 spin_unlock_irqrestore(&nesdev->indexed_regs_lock, flags);
367}
368
369static inline void nes_write32(void __iomem *addr, u32 val)
370{
371 writel(val, addr);
372}
373
374static inline void nes_write16(void __iomem *addr, u16 val)
375{
376 writew(val, addr);
377}
378
379static inline void nes_write8(void __iomem *addr, u8 val)
380{
381 writeb(val, addr);
382}
383
384
385
386static inline int nes_alloc_resource(struct nes_adapter *nesadapter,
387 unsigned long *resource_array, u32 max_resources,
388 u32 *req_resource_num, u32 *next)
389{
390 unsigned long flags;
391 u32 resource_num;
392
393 spin_lock_irqsave(&nesadapter->resource_lock, flags);
394
395 resource_num = find_next_zero_bit(resource_array, max_resources, *next);
396 if (resource_num >= max_resources) {
397 resource_num = find_first_zero_bit(resource_array, max_resources);
398 if (resource_num >= max_resources) {
399 printk(KERN_ERR PFX "%s: No available resourcess.\n", __func__);
400 spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
401 return -EMFILE;
402 }
403 }
404 set_bit(resource_num, resource_array);
405 *next = resource_num+1;
406 if (*next == max_resources) {
407 *next = 0;
408 }
409 spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
410 *req_resource_num = resource_num;
411
412 return 0;
413}
414
415static inline int nes_is_resource_allocated(struct nes_adapter *nesadapter,
416 unsigned long *resource_array, u32 resource_num)
417{
418 unsigned long flags;
419 int bit_is_set;
420
421 spin_lock_irqsave(&nesadapter->resource_lock, flags);
422
423 bit_is_set = test_bit(resource_num, resource_array);
424 nes_debug(NES_DBG_HW, "resource_num %u is%s allocated.\n",
425 resource_num, (bit_is_set ? "": " not"));
426 spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
427
428 return bit_is_set;
429}
430
431static inline void nes_free_resource(struct nes_adapter *nesadapter,
432 unsigned long *resource_array, u32 resource_num)
433{
434 unsigned long flags;
435
436 spin_lock_irqsave(&nesadapter->resource_lock, flags);
437 clear_bit(resource_num, resource_array);
438 spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
439}
440
441static inline struct nes_vnic *to_nesvnic(struct ib_device *ibdev)
442{
443 return container_of(ibdev, struct nes_ib_device, ibdev)->nesvnic;
444}
445
446static inline struct nes_pd *to_nespd(struct ib_pd *ibpd)
447{
448 return container_of(ibpd, struct nes_pd, ibpd);
449}
450
451static inline struct nes_ucontext *to_nesucontext(struct ib_ucontext *ibucontext)
452{
453 return container_of(ibucontext, struct nes_ucontext, ibucontext);
454}
455
456static inline struct nes_mr *to_nesmr(struct ib_mr *ibmr)
457{
458 return container_of(ibmr, struct nes_mr, ibmr);
459}
460
461static inline struct nes_mr *to_nesmr_from_ibfmr(struct ib_fmr *ibfmr)
462{
463 return container_of(ibfmr, struct nes_mr, ibfmr);
464}
465
466static inline struct nes_mr *to_nesmw(struct ib_mw *ibmw)
467{
468 return container_of(ibmw, struct nes_mr, ibmw);
469}
470
471static inline struct nes_fmr *to_nesfmr(struct nes_mr *nesmr)
472{
473 return container_of(nesmr, struct nes_fmr, nesmr);
474}
475
476static inline struct nes_cq *to_nescq(struct ib_cq *ibcq)
477{
478 return container_of(ibcq, struct nes_cq, ibcq);
479}
480
481static inline struct nes_qp *to_nesqp(struct ib_qp *ibqp)
482{
483 return container_of(ibqp, struct nes_qp, ibqp);
484}
485
486
487
488
489void nes_add_ref(struct ib_qp *);
490void nes_rem_ref(struct ib_qp *);
491struct ib_qp *nes_get_qp(struct ib_device *, int);
492
493
494
495struct nes_adapter *nes_init_adapter(struct nes_device *, u8);
496void nes_nic_init_timer_defaults(struct nes_device *, u8);
497void nes_destroy_adapter(struct nes_adapter *);
498int nes_init_cqp(struct nes_device *);
499int nes_init_phy(struct nes_device *);
500int nes_init_nic_qp(struct nes_device *, struct net_device *);
501void nes_destroy_nic_qp(struct nes_vnic *);
502int nes_napi_isr(struct nes_device *);
503void nes_dpc(unsigned long);
504void nes_nic_ce_handler(struct nes_device *, struct nes_hw_nic_cq *);
505void nes_iwarp_ce_handler(struct nes_device *, struct nes_hw_cq *);
506int nes_destroy_cqp(struct nes_device *);
507int nes_nic_cm_xmit(struct sk_buff *, struct net_device *);
508
509
510struct net_device *nes_netdev_init(struct nes_device *, void __iomem *);
511void nes_netdev_destroy(struct net_device *);
512int nes_nic_cm_xmit(struct sk_buff *, struct net_device *);
513
514
515void *nes_cm_create(struct net_device *);
516int nes_cm_recv(struct sk_buff *, struct net_device *);
517void nes_update_arp(unsigned char *, u32, u32, u16, u16);
518void nes_manage_arp_cache(struct net_device *, unsigned char *, u32, u32);
519void nes_sock_release(struct nes_qp *, unsigned long *);
520void flush_wqes(struct nes_device *nesdev, struct nes_qp *, u32, u32);
521int nes_manage_apbvt(struct nes_vnic *, u32, u32, u32);
522int nes_cm_disconn(struct nes_qp *);
523void nes_cm_disconn_worker(void *);
524
525
526int nes_hw_modify_qp(struct nes_device *, struct nes_qp *, u32, u32, u32);
527int nes_modify_qp(struct ib_qp *, struct ib_qp_attr *, int, struct ib_udata *);
528struct nes_ib_device *nes_init_ofa_device(struct net_device *);
529void nes_destroy_ofa_device(struct nes_ib_device *);
530int nes_register_ofa_device(struct nes_ib_device *);
531
532
533int nes_read_eeprom_values(struct nes_device *, struct nes_adapter *);
534void nes_write_1G_phy_reg(struct nes_device *, u8, u8, u16);
535void nes_read_1G_phy_reg(struct nes_device *, u8, u8, u16 *);
536void nes_write_10G_phy_reg(struct nes_device *, u16, u8, u16, u16);
537void nes_read_10G_phy_reg(struct nes_device *, u8, u8, u16);
538struct nes_cqp_request *nes_get_cqp_request(struct nes_device *);
539void nes_free_cqp_request(struct nes_device *nesdev,
540 struct nes_cqp_request *cqp_request);
541void nes_put_cqp_request(struct nes_device *nesdev,
542 struct nes_cqp_request *cqp_request);
543void nes_post_cqp_request(struct nes_device *, struct nes_cqp_request *);
544int nes_arp_table(struct nes_device *, u32, u8 *, u32);
545void nes_mh_fix(unsigned long);
546void nes_clc(unsigned long);
547void nes_dump_mem(unsigned int, void *, int);
548u32 nes_crc32(u32, u32, u32, u32, u8 *, u32, u32, u32);
549
550#endif
551
