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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#include <rdma/rdma_netlink.h>
55#include <rdma/iw_portmap.h>
56
57#define NES_SEND_FIRST_WRITE
58
59#define QUEUE_DISCONNECTS
60
61#define DRV_NAME "iw_nes"
62#define DRV_VERSION "1.5.0.1"
63#define PFX DRV_NAME ": "
64
65
66
67
68#ifndef PCI_VENDOR_ID_NETEFFECT
69#define PCI_VENDOR_ID_NETEFFECT 0x1678
70#define PCI_DEVICE_ID_NETEFFECT_NE020 0x0100
71#define PCI_DEVICE_ID_NETEFFECT_NE020_KR 0x0110
72#endif
73
74#define NE020_REV 4
75#define NE020_REV1 5
76
77#define BAR_0 0
78#define BAR_1 2
79
80#define RX_BUF_SIZE (1536 + 8)
81#define NES_REG0_SIZE (4 * 1024)
82#define NES_TX_TIMEOUT (6*HZ)
83#define NES_FIRST_QPN 64
84#define NES_SW_CONTEXT_ALIGN 1024
85
86#define NES_NIC_MAX_NICS 16
87#define NES_MAX_ARP_TABLE_SIZE 4096
88
89#define NES_NIC_CEQ_SIZE 8
90
91#define NES_CCEQ_SIZE ((nesadapter->max_cq / nesadapter->port_count) - 32)
92
93#define NES_MAX_PORT_COUNT 4
94
95#define MAX_DPC_ITERATIONS 128
96
97#define NES_DRV_OPT_ENABLE_MPA_VER_0 0x00000001
98#define NES_DRV_OPT_DISABLE_MPA_CRC 0x00000002
99#define NES_DRV_OPT_DISABLE_FIRST_WRITE 0x00000004
100#define NES_DRV_OPT_DISABLE_INTF 0x00000008
101#define NES_DRV_OPT_ENABLE_MSI 0x00000010
102#define NES_DRV_OPT_DUAL_LOGICAL_PORT 0x00000020
103#define NES_DRV_OPT_SUPRESS_OPTION_BC 0x00000040
104#define NES_DRV_OPT_NO_INLINE_DATA 0x00000080
105#define NES_DRV_OPT_DISABLE_INT_MOD 0x00000100
106#define NES_DRV_OPT_DISABLE_VIRT_WQ 0x00000200
107#define NES_DRV_OPT_ENABLE_PAU 0x00000400
108
109#define NES_AEQ_EVENT_TIMEOUT 2500
110#define NES_DISCONNECT_EVENT_TIMEOUT 2000
111
112
113
114#define NES_DBG_HW 0x00000001
115#define NES_DBG_INIT 0x00000002
116#define NES_DBG_ISR 0x00000004
117#define NES_DBG_PHY 0x00000008
118#define NES_DBG_NETDEV 0x00000010
119#define NES_DBG_CM 0x00000020
120#define NES_DBG_CM1 0x00000040
121#define NES_DBG_NIC_RX 0x00000080
122#define NES_DBG_NIC_TX 0x00000100
123#define NES_DBG_CQP 0x00000200
124#define NES_DBG_MMAP 0x00000400
125#define NES_DBG_MR 0x00000800
126#define NES_DBG_PD 0x00001000
127#define NES_DBG_CQ 0x00002000
128#define NES_DBG_QP 0x00004000
129#define NES_DBG_MOD_QP 0x00008000
130#define NES_DBG_AEQ 0x00010000
131#define NES_DBG_IW_RX 0x00020000
132#define NES_DBG_IW_TX 0x00040000
133#define NES_DBG_SHUTDOWN 0x00080000
134#define NES_DBG_PAU 0x00100000
135#define NES_DBG_NLMSG 0x00200000
136#define NES_DBG_RSVD1 0x10000000
137#define NES_DBG_RSVD2 0x20000000
138#define NES_DBG_RSVD3 0x40000000
139#define NES_DBG_RSVD4 0x80000000
140#define NES_DBG_ALL 0xffffffff
141
142#ifdef CONFIG_INFINIBAND_NES_DEBUG
143#define nes_debug(level, fmt, args...) \
144do { \
145 if (level & nes_debug_level) \
146 printk(KERN_ERR PFX "%s[%u]: " fmt, __func__, __LINE__, ##args); \
147} while (0)
148
149#define assert(expr) \
150do { \
151 if (!(expr)) { \
152 printk(KERN_ERR PFX "Assertion failed! %s, %s, %s, line %d\n", \
153 #expr, __FILE__, __func__, __LINE__); \
154 } \
155} while (0)
156
157#define NES_EVENT_TIMEOUT 1200000
158#else
159#define nes_debug(level, fmt, args...)
160#define assert(expr) do {} while (0)
161
162#define NES_EVENT_TIMEOUT 100000
163#endif
164
165#include "nes_hw.h"
166#include "nes_verbs.h"
167#include "nes_context.h"
168#include "nes_user.h"
169#include "nes_cm.h"
170#include "nes_mgt.h"
171
172extern int max_mtu;
173#define max_frame_len (max_mtu+ETH_HLEN)
174extern int interrupt_mod_interval;
175extern int nes_if_count;
176extern int mpa_version;
177extern int disable_mpa_crc;
178extern unsigned int nes_drv_opt;
179extern unsigned int nes_debug_level;
180extern unsigned int wqm_quanta;
181extern struct list_head nes_adapter_list;
182
183extern atomic_t cm_connects;
184extern atomic_t cm_accepts;
185extern atomic_t cm_disconnects;
186extern atomic_t cm_closes;
187extern atomic_t cm_connecteds;
188extern atomic_t cm_connect_reqs;
189extern atomic_t cm_rejects;
190extern atomic_t mod_qp_timouts;
191extern atomic_t qps_created;
192extern atomic_t qps_destroyed;
193extern atomic_t sw_qps_destroyed;
194extern u32 mh_detected;
195extern u32 mh_pauses_sent;
196extern u32 cm_packets_sent;
197extern u32 cm_packets_bounced;
198extern u32 cm_packets_created;
199extern u32 cm_packets_received;
200extern u32 cm_packets_dropped;
201extern u32 cm_packets_retrans;
202extern atomic_t cm_listens_created;
203extern atomic_t cm_listens_destroyed;
204extern u32 cm_backlog_drops;
205extern atomic_t cm_loopbacks;
206extern atomic_t cm_nodes_created;
207extern atomic_t cm_nodes_destroyed;
208extern atomic_t cm_accel_dropped_pkts;
209extern atomic_t cm_resets_recvd;
210extern atomic_t pau_qps_created;
211extern atomic_t pau_qps_destroyed;
212
213extern u32 int_mod_timer_init;
214extern u32 int_mod_cq_depth_256;
215extern u32 int_mod_cq_depth_128;
216extern u32 int_mod_cq_depth_32;
217extern u32 int_mod_cq_depth_24;
218extern u32 int_mod_cq_depth_16;
219extern u32 int_mod_cq_depth_4;
220extern u32 int_mod_cq_depth_1;
221
222struct nes_device {
223 struct nes_adapter *nesadapter;
224 void __iomem *regs;
225 void __iomem *index_reg;
226 struct pci_dev *pcidev;
227 struct net_device *netdev[NES_NIC_MAX_NICS];
228 u64 link_status_interrupts;
229 struct tasklet_struct dpc_tasklet;
230 spinlock_t indexed_regs_lock;
231 unsigned long csr_start;
232 unsigned long doorbell_region;
233 unsigned long doorbell_start;
234 unsigned long mac_tx_errors;
235 unsigned long mac_pause_frames_sent;
236 unsigned long mac_pause_frames_received;
237 unsigned long mac_rx_errors;
238 unsigned long mac_rx_crc_errors;
239 unsigned long mac_rx_symbol_err_frames;
240 unsigned long mac_rx_jabber_frames;
241 unsigned long mac_rx_oversized_frames;
242 unsigned long mac_rx_short_frames;
243 unsigned long port_rx_discards;
244 unsigned long port_tx_discards;
245 unsigned int mac_index;
246 unsigned int nes_stack_start;
247
248
249 void *cqp_vbase;
250 dma_addr_t cqp_pbase;
251 u32 cqp_mem_size;
252 u8 ceq_index;
253 u8 nic_ceq_index;
254 struct nes_hw_cqp cqp;
255 struct nes_hw_cq ccq;
256 struct list_head cqp_avail_reqs;
257 struct list_head cqp_pending_reqs;
258 struct nes_cqp_request *nes_cqp_requests;
259
260 u32 int_req;
261 u32 int_stat;
262 u32 timer_int_req;
263 u32 timer_only_int_count;
264 u32 intf_int_req;
265 u32 last_mac_tx_pauses;
266 u32 last_used_chunks_tx;
267 struct list_head list;
268
269 u16 base_doorbell_index;
270 u16 currcq_count;
271 u16 deepcq_count;
272 u8 iw_status;
273 u8 msi_enabled;
274 u8 netdev_count;
275 u8 napi_isr_ran;
276 u8 disable_rx_flow_control;
277 u8 disable_tx_flow_control;
278
279 struct delayed_work work;
280 u8 link_recheck;
281};
282
283
284struct nes_rskb_cb {
285 u64 busaddr;
286 u32 maplen;
287 u32 seqnum;
288 u8 *data_start;
289 struct nes_qp *nesqp;
290};
291
292static inline __le32 get_crc_value(struct nes_v4_quad *nes_quad)
293{
294 u32 crc_value;
295 crc_value = crc32c(~0, (void *)nes_quad, sizeof (struct nes_v4_quad));
296
297
298
299
300
301
302
303
304 return cpu_to_le32(crc_value);
305}
306
307static inline void
308set_wqe_64bit_value(__le32 *wqe_words, u32 index, u64 value)
309{
310 wqe_words[index] = cpu_to_le32((u32) value);
311 wqe_words[index + 1] = cpu_to_le32(upper_32_bits(value));
312}
313
314static inline void
315set_wqe_32bit_value(__le32 *wqe_words, u32 index, u32 value)
316{
317 wqe_words[index] = cpu_to_le32(value);
318}
319
320static inline void
321nes_fill_init_cqp_wqe(struct nes_hw_cqp_wqe *cqp_wqe, struct nes_device *nesdev)
322{
323 cqp_wqe->wqe_words[NES_CQP_WQE_COMP_CTX_LOW_IDX] = 0;
324 cqp_wqe->wqe_words[NES_CQP_WQE_COMP_CTX_HIGH_IDX] = 0;
325 cqp_wqe->wqe_words[NES_CQP_WQE_COMP_SCRATCH_LOW_IDX] = 0;
326 cqp_wqe->wqe_words[NES_CQP_WQE_COMP_SCRATCH_HIGH_IDX] = 0;
327 cqp_wqe->wqe_words[NES_CQP_STAG_WQE_PBL_BLK_COUNT_IDX] = 0;
328 cqp_wqe->wqe_words[NES_CQP_STAG_WQE_PBL_LEN_IDX] = 0;
329 cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_LOW_IDX] = 0;
330 cqp_wqe->wqe_words[NES_CQP_STAG_WQE_PA_LOW_IDX] = 0;
331 cqp_wqe->wqe_words[NES_CQP_STAG_WQE_PA_HIGH_IDX] = 0;
332}
333
334static inline void
335nes_fill_init_qp_wqe(struct nes_hw_qp_wqe *wqe, struct nes_qp *nesqp, u32 head)
336{
337 u32 value;
338 value = ((u32)((unsigned long) nesqp)) | head;
339 set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_CTX_HIGH_IDX,
340 (u32)(upper_32_bits((unsigned long)(nesqp))));
341 set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX, value);
342}
343
344
345static inline u32 nes_read_indexed(struct nes_device *nesdev, u32 reg_index)
346{
347 unsigned long flags;
348 void __iomem *addr = nesdev->index_reg;
349 u32 value;
350
351 spin_lock_irqsave(&nesdev->indexed_regs_lock, flags);
352
353 writel(reg_index, addr);
354 value = readl((void __iomem *)addr + 4);
355
356 spin_unlock_irqrestore(&nesdev->indexed_regs_lock, flags);
357 return value;
358}
359
360static inline u32 nes_read32(const void __iomem *addr)
361{
362 return readl(addr);
363}
364
365static inline u16 nes_read16(const void __iomem *addr)
366{
367 return readw(addr);
368}
369
370static inline u8 nes_read8(const void __iomem *addr)
371{
372 return readb(addr);
373}
374
375
376static inline void nes_write_indexed(struct nes_device *nesdev, u32 reg_index, u32 val)
377{
378 unsigned long flags;
379 void __iomem *addr = nesdev->index_reg;
380
381 spin_lock_irqsave(&nesdev->indexed_regs_lock, flags);
382
383 writel(reg_index, addr);
384 writel(val, (void __iomem *)addr + 4);
385
386 spin_unlock_irqrestore(&nesdev->indexed_regs_lock, flags);
387}
388
389static inline void nes_write32(void __iomem *addr, u32 val)
390{
391 writel(val, addr);
392}
393
394static inline void nes_write16(void __iomem *addr, u16 val)
395{
396 writew(val, addr);
397}
398
399static inline void nes_write8(void __iomem *addr, u8 val)
400{
401 writeb(val, addr);
402}
403
404enum nes_resource {
405 NES_RESOURCE_MW = 1,
406 NES_RESOURCE_FAST_MR,
407 NES_RESOURCE_PHYS_MR,
408 NES_RESOURCE_USER_MR,
409 NES_RESOURCE_PD,
410 NES_RESOURCE_QP,
411 NES_RESOURCE_CQ,
412 NES_RESOURCE_ARP
413};
414
415static inline int nes_alloc_resource(struct nes_adapter *nesadapter,
416 unsigned long *resource_array, u32 max_resources,
417 u32 *req_resource_num, u32 *next, enum nes_resource resource_type)
418{
419 unsigned long flags;
420 u32 resource_num;
421
422 spin_lock_irqsave(&nesadapter->resource_lock, flags);
423
424 resource_num = find_next_zero_bit(resource_array, max_resources, *next);
425 if (resource_num >= max_resources) {
426 resource_num = find_first_zero_bit(resource_array, max_resources);
427 if (resource_num >= max_resources) {
428 printk(KERN_ERR PFX "%s: No available resources [type=%u].\n", __func__, resource_type);
429 spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
430 return -EMFILE;
431 }
432 }
433 set_bit(resource_num, resource_array);
434 *next = resource_num+1;
435 if (*next == max_resources) {
436 *next = 0;
437 }
438 spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
439 *req_resource_num = resource_num;
440
441 return 0;
442}
443
444static inline int nes_is_resource_allocated(struct nes_adapter *nesadapter,
445 unsigned long *resource_array, u32 resource_num)
446{
447 unsigned long flags;
448 int bit_is_set;
449
450 spin_lock_irqsave(&nesadapter->resource_lock, flags);
451
452 bit_is_set = test_bit(resource_num, resource_array);
453 nes_debug(NES_DBG_HW, "resource_num %u is%s allocated.\n",
454 resource_num, (bit_is_set ? "": " not"));
455 spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
456
457 return bit_is_set;
458}
459
460static inline void nes_free_resource(struct nes_adapter *nesadapter,
461 unsigned long *resource_array, u32 resource_num)
462{
463 unsigned long flags;
464
465 spin_lock_irqsave(&nesadapter->resource_lock, flags);
466 clear_bit(resource_num, resource_array);
467 spin_unlock_irqrestore(&nesadapter->resource_lock, flags);
468}
469
470static inline struct nes_vnic *to_nesvnic(struct ib_device *ibdev)
471{
472 return container_of(ibdev, struct nes_ib_device, ibdev)->nesvnic;
473}
474
475static inline struct nes_pd *to_nespd(struct ib_pd *ibpd)
476{
477 return container_of(ibpd, struct nes_pd, ibpd);
478}
479
480static inline struct nes_ucontext *to_nesucontext(struct ib_ucontext *ibucontext)
481{
482 return container_of(ibucontext, struct nes_ucontext, ibucontext);
483}
484
485static inline struct nes_mr *to_nesmr(struct ib_mr *ibmr)
486{
487 return container_of(ibmr, struct nes_mr, ibmr);
488}
489
490static inline struct nes_mr *to_nesmr_from_ibfmr(struct ib_fmr *ibfmr)
491{
492 return container_of(ibfmr, struct nes_mr, ibfmr);
493}
494
495static inline struct nes_mr *to_nesmw(struct ib_mw *ibmw)
496{
497 return container_of(ibmw, struct nes_mr, ibmw);
498}
499
500static inline struct nes_fmr *to_nesfmr(struct nes_mr *nesmr)
501{
502 return container_of(nesmr, struct nes_fmr, nesmr);
503}
504
505static inline struct nes_cq *to_nescq(struct ib_cq *ibcq)
506{
507 return container_of(ibcq, struct nes_cq, ibcq);
508}
509
510static inline struct nes_qp *to_nesqp(struct ib_qp *ibqp)
511{
512 return container_of(ibqp, struct nes_qp, ibqp);
513}
514
515
516
517
518void nes_add_ref(struct ib_qp *);
519void nes_rem_ref(struct ib_qp *);
520struct ib_qp *nes_get_qp(struct ib_device *, int);
521
522
523
524struct nes_adapter *nes_init_adapter(struct nes_device *, u8);
525void nes_nic_init_timer_defaults(struct nes_device *, u8);
526void nes_destroy_adapter(struct nes_adapter *);
527int nes_init_cqp(struct nes_device *);
528int nes_init_phy(struct nes_device *);
529int nes_init_nic_qp(struct nes_device *, struct net_device *);
530void nes_destroy_nic_qp(struct nes_vnic *);
531int nes_napi_isr(struct nes_device *);
532void nes_dpc(unsigned long);
533void nes_nic_ce_handler(struct nes_device *, struct nes_hw_nic_cq *);
534void nes_iwarp_ce_handler(struct nes_device *, struct nes_hw_cq *);
535int nes_destroy_cqp(struct nes_device *);
536int nes_nic_cm_xmit(struct sk_buff *, struct net_device *);
537void nes_recheck_link_status(struct work_struct *work);
538void nes_terminate_timeout(unsigned long context);
539
540
541struct net_device *nes_netdev_init(struct nes_device *, void __iomem *);
542void nes_netdev_destroy(struct net_device *);
543int nes_nic_cm_xmit(struct sk_buff *, struct net_device *);
544
545
546void *nes_cm_create(struct net_device *);
547int nes_cm_recv(struct sk_buff *, struct net_device *);
548void nes_update_arp(unsigned char *, u32, u32, u16, u16);
549void nes_manage_arp_cache(struct net_device *, unsigned char *, u32, u32);
550void nes_sock_release(struct nes_qp *, unsigned long *);
551void flush_wqes(struct nes_device *nesdev, struct nes_qp *, u32, u32);
552int nes_manage_apbvt(struct nes_vnic *, u32, u32, u32);
553int nes_cm_disconn(struct nes_qp *);
554void nes_cm_disconn_worker(void *);
555
556
557int nes_hw_modify_qp(struct nes_device *, struct nes_qp *, u32, u32, u32);
558int nes_modify_qp(struct ib_qp *, struct ib_qp_attr *, int, struct ib_udata *);
559struct nes_ib_device *nes_init_ofa_device(struct net_device *);
560void nes_port_ibevent(struct nes_vnic *nesvnic);
561void nes_destroy_ofa_device(struct nes_ib_device *);
562int nes_register_ofa_device(struct nes_ib_device *);
563
564
565int nes_read_eeprom_values(struct nes_device *, struct nes_adapter *);
566void nes_write_1G_phy_reg(struct nes_device *, u8, u8, u16);
567void nes_read_1G_phy_reg(struct nes_device *, u8, u8, u16 *);
568void nes_write_10G_phy_reg(struct nes_device *, u16, u8, u16, u16);
569void nes_read_10G_phy_reg(struct nes_device *, u8, u8, u16);
570struct nes_cqp_request *nes_get_cqp_request(struct nes_device *);
571void nes_free_cqp_request(struct nes_device *nesdev,
572 struct nes_cqp_request *cqp_request);
573void nes_put_cqp_request(struct nes_device *nesdev,
574 struct nes_cqp_request *cqp_request);
575void nes_post_cqp_request(struct nes_device *, struct nes_cqp_request *);
576int nes_arp_table(struct nes_device *, u32, u8 *, u32);
577void nes_mh_fix(unsigned long);
578void nes_clc(unsigned long);
579void nes_dump_mem(unsigned int, void *, int);
580u32 nes_crc32(u32, u32, u32, u32, u8 *, u32, u32, u32);
581
582#endif
583
