1 /*
2  * This file is part of the Chelsio T4 Ethernet driver for Linux.
3  *
4  * Copyright (c) 2003-2010 Chelsio Communications, Inc. All rights reserved.
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_H__
36 #define __CXGB4_H__
37 
38 #include <linux/bitops.h>
39 #include <linux/cache.h>
40 #include <linux/interrupt.h>
41 #include <linux/list.h>
42 #include <linux/netdevice.h>
43 #include <linux/pci.h>
44 #include <linux/spinlock.h>
45 #include <linux/timer.h>
46 #include <asm/io.h>
47 #include "cxgb4_uld.h"
48 #include "t4_hw.h"
49 
50 #define FW_VERSION_MAJOR 1
51 #define FW_VERSION_MINOR 1
52 #define FW_VERSION_MICRO 0
53 
54 enum {
55 	MAX_NPORTS = 4,     /* max # of ports */
56 	SERNUM_LEN = 24,    /* Serial # length */
57 	EC_LEN     = 16,    /* E/C length */
58 	ID_LEN     = 16,    /* ID length */
59 };
60 
61 enum {
62 	MEM_EDC0,
63 	MEM_EDC1,
64 	MEM_MC
65 };
66 
67 enum dev_master {
68 	MASTER_CANT,
69 	MASTER_MAY,
70 	MASTER_MUST
71 };
72 
73 enum dev_state {
74 	DEV_STATE_UNINIT,
75 	DEV_STATE_INIT,
76 	DEV_STATE_ERR
77 };
78 
79 enum {
80 	PAUSE_RX      = 1 << 0,
81 	PAUSE_TX      = 1 << 1,
82 	PAUSE_AUTONEG = 1 << 2
83 };
84 
85 struct port_stats {
86 	u64 tx_octets;            /* total # of octets in good frames */
87 	u64 tx_frames;            /* all good frames */
88 	u64 tx_bcast_frames;      /* all broadcast frames */
89 	u64 tx_mcast_frames;      /* all multicast frames */
90 	u64 tx_ucast_frames;      /* all unicast frames */
91 	u64 tx_error_frames;      /* all error frames */
92 
93 	u64 tx_frames_64;         /* # of Tx frames in a particular range */
94 	u64 tx_frames_65_127;
95 	u64 tx_frames_128_255;
96 	u64 tx_frames_256_511;
97 	u64 tx_frames_512_1023;
98 	u64 tx_frames_1024_1518;
99 	u64 tx_frames_1519_max;
100 
101 	u64 tx_drop;              /* # of dropped Tx frames */
102 	u64 tx_pause;             /* # of transmitted pause frames */
103 	u64 tx_ppp0;              /* # of transmitted PPP prio 0 frames */
104 	u64 tx_ppp1;              /* # of transmitted PPP prio 1 frames */
105 	u64 tx_ppp2;              /* # of transmitted PPP prio 2 frames */
106 	u64 tx_ppp3;              /* # of transmitted PPP prio 3 frames */
107 	u64 tx_ppp4;              /* # of transmitted PPP prio 4 frames */
108 	u64 tx_ppp5;              /* # of transmitted PPP prio 5 frames */
109 	u64 tx_ppp6;              /* # of transmitted PPP prio 6 frames */
110 	u64 tx_ppp7;              /* # of transmitted PPP prio 7 frames */
111 
112 	u64 rx_octets;            /* total # of octets in good frames */
113 	u64 rx_frames;            /* all good frames */
114 	u64 rx_bcast_frames;      /* all broadcast frames */
115 	u64 rx_mcast_frames;      /* all multicast frames */
116 	u64 rx_ucast_frames;      /* all unicast frames */
117 	u64 rx_too_long;          /* # of frames exceeding MTU */
118 	u64 rx_jabber;            /* # of jabber frames */
119 	u64 rx_fcs_err;           /* # of received frames with bad FCS */
120 	u64 rx_len_err;           /* # of received frames with length error */
121 	u64 rx_symbol_err;        /* symbol errors */
122 	u64 rx_runt;              /* # of short frames */
123 
124 	u64 rx_frames_64;         /* # of Rx frames in a particular range */
125 	u64 rx_frames_65_127;
126 	u64 rx_frames_128_255;
127 	u64 rx_frames_256_511;
128 	u64 rx_frames_512_1023;
129 	u64 rx_frames_1024_1518;
130 	u64 rx_frames_1519_max;
131 
132 	u64 rx_pause;             /* # of received pause frames */
133 	u64 rx_ppp0;              /* # of received PPP prio 0 frames */
134 	u64 rx_ppp1;              /* # of received PPP prio 1 frames */
135 	u64 rx_ppp2;              /* # of received PPP prio 2 frames */
136 	u64 rx_ppp3;              /* # of received PPP prio 3 frames */
137 	u64 rx_ppp4;              /* # of received PPP prio 4 frames */
138 	u64 rx_ppp5;              /* # of received PPP prio 5 frames */
139 	u64 rx_ppp6;              /* # of received PPP prio 6 frames */
140 	u64 rx_ppp7;              /* # of received PPP prio 7 frames */
141 
142 	u64 rx_ovflow0;           /* drops due to buffer-group 0 overflows */
143 	u64 rx_ovflow1;           /* drops due to buffer-group 1 overflows */
144 	u64 rx_ovflow2;           /* drops due to buffer-group 2 overflows */
145 	u64 rx_ovflow3;           /* drops due to buffer-group 3 overflows */
146 	u64 rx_trunc0;            /* buffer-group 0 truncated packets */
147 	u64 rx_trunc1;            /* buffer-group 1 truncated packets */
148 	u64 rx_trunc2;            /* buffer-group 2 truncated packets */
149 	u64 rx_trunc3;            /* buffer-group 3 truncated packets */
150 };
151 
152 struct lb_port_stats {
153 	u64 octets;
154 	u64 frames;
155 	u64 bcast_frames;
156 	u64 mcast_frames;
157 	u64 ucast_frames;
158 	u64 error_frames;
159 
160 	u64 frames_64;
161 	u64 frames_65_127;
162 	u64 frames_128_255;
163 	u64 frames_256_511;
164 	u64 frames_512_1023;
165 	u64 frames_1024_1518;
166 	u64 frames_1519_max;
167 
168 	u64 drop;
169 
170 	u64 ovflow0;
171 	u64 ovflow1;
172 	u64 ovflow2;
173 	u64 ovflow3;
174 	u64 trunc0;
175 	u64 trunc1;
176 	u64 trunc2;
177 	u64 trunc3;
178 };
179 
180 struct tp_tcp_stats {
181 	u32 tcpOutRsts;
182 	u64 tcpInSegs;
183 	u64 tcpOutSegs;
184 	u64 tcpRetransSegs;
185 };
186 
187 struct tp_err_stats {
188 	u32 macInErrs[4];
189 	u32 hdrInErrs[4];
190 	u32 tcpInErrs[4];
191 	u32 tnlCongDrops[4];
192 	u32 ofldChanDrops[4];
193 	u32 tnlTxDrops[4];
194 	u32 ofldVlanDrops[4];
195 	u32 tcp6InErrs[4];
196 	u32 ofldNoNeigh;
197 	u32 ofldCongDefer;
198 };
199 
200 struct tp_params {
201 	unsigned int ntxchan;        /* # of Tx channels */
202 	unsigned int tre;            /* log2 of core clocks per TP tick */
203 };
204 
205 struct vpd_params {
206 	unsigned int cclk;
207 	u8 ec[EC_LEN + 1];
208 	u8 sn[SERNUM_LEN + 1];
209 	u8 id[ID_LEN + 1];
210 };
211 
212 struct pci_params {
213 	unsigned char speed;
214 	unsigned char width;
215 };
216 
217 struct adapter_params {
218 	struct tp_params  tp;
219 	struct vpd_params vpd;
220 	struct pci_params pci;
221 
222 	unsigned int sf_size;             /* serial flash size in bytes */
223 	unsigned int sf_nsec;             /* # of flash sectors */
224 	unsigned int sf_fw_start;         /* start of FW image in flash */
225 
226 	unsigned int fw_vers;
227 	unsigned int tp_vers;
228 	u8 api_vers[7];
229 
230 	unsigned short mtus[NMTUS];
231 	unsigned short a_wnd[NCCTRL_WIN];
232 	unsigned short b_wnd[NCCTRL_WIN];
233 
234 	unsigned char nports;             /* # of ethernet ports */
235 	unsigned char portvec;
236 	unsigned char rev;                /* chip revision */
237 	unsigned char offload;
238 
239 	unsigned int ofldq_wr_cred;
240 };
241 
242 struct trace_params {
243 	u32 data[TRACE_LEN / 4];
244 	u32 mask[TRACE_LEN / 4];
245 	unsigned short snap_len;
246 	unsigned short min_len;
247 	unsigned char skip_ofst;
248 	unsigned char skip_len;
249 	unsigned char invert;
250 	unsigned char port;
251 };
252 
253 struct link_config {
254 	unsigned short supported;        /* link capabilities */
255 	unsigned short advertising;      /* advertised capabilities */
256 	unsigned short requested_speed;  /* speed user has requested */
257 	unsigned short speed;            /* actual link speed */
258 	unsigned char  requested_fc;     /* flow control user has requested */
259 	unsigned char  fc;               /* actual link flow control */
260 	unsigned char  autoneg;          /* autonegotiating? */
261 	unsigned char  link_ok;          /* link up? */
262 };
263 
264 #define FW_LEN16(fw_struct) FW_CMD_LEN16(sizeof(fw_struct) / 16)
265 
266 enum {
267 	MAX_ETH_QSETS = 32,           /* # of Ethernet Tx/Rx queue sets */
268 	MAX_OFLD_QSETS = 16,          /* # of offload Tx/Rx queue sets */
269 	MAX_CTRL_QUEUES = NCHAN,      /* # of control Tx queues */
270 	MAX_RDMA_QUEUES = NCHAN,      /* # of streaming RDMA Rx queues */
271 };
272 
273 enum {
274 	MAX_EGRQ = 128,         /* max # of egress queues, including FLs */
275 	MAX_INGQ = 64           /* max # of interrupt-capable ingress queues */
276 };
277 
278 struct adapter;
279 struct sge_rspq;
280 
281 struct port_info {
282 	struct adapter *adapter;
283 	u16    viid;
284 	s16    xact_addr_filt;        /* index of exact MAC address filter */
285 	u16    rss_size;              /* size of VI's RSS table slice */
286 	s8     mdio_addr;
287 	u8     port_type;
288 	u8     mod_type;
289 	u8     port_id;
290 	u8     tx_chan;
291 	u8     lport;                 /* associated offload logical port */
292 	u8     nqsets;                /* # of qsets */
293 	u8     first_qset;            /* index of first qset */
294 	u8     rss_mode;
295 	struct link_config link_cfg;
296 	u16   *rss;
297 };
298 
299 struct dentry;
300 struct work_struct;
301 
302 enum {                                 /* adapter flags */
303 	FULL_INIT_DONE     = (1 << 0),
304 	USING_MSI          = (1 << 1),
305 	USING_MSIX         = (1 << 2),
306 	FW_OK              = (1 << 4),
307 };
308 
309 struct rx_sw_desc;
310 
311 struct sge_fl {                     /* SGE free-buffer queue state */
312 	unsigned int avail;         /* # of available Rx buffers */
313 	unsigned int pend_cred;     /* new buffers since last FL DB ring */
314 	unsigned int cidx;          /* consumer index */
315 	unsigned int pidx;          /* producer index */
316 	unsigned long alloc_failed; /* # of times buffer allocation failed */
317 	unsigned long large_alloc_failed;
318 	unsigned long starving;
319 	/* RO fields */
320 	unsigned int cntxt_id;      /* SGE context id for the free list */
321 	unsigned int size;          /* capacity of free list */
322 	struct rx_sw_desc *sdesc;   /* address of SW Rx descriptor ring */
323 	__be64 *desc;               /* address of HW Rx descriptor ring */
324 	dma_addr_t addr;            /* bus address of HW ring start */
325 };
326 
327 /* A packet gather list */
328 struct pkt_gl {
329 	struct page_frag frags[MAX_SKB_FRAGS];
330 	void *va;                         /* virtual address of first byte */
331 	unsigned int nfrags;              /* # of fragments */
332 	unsigned int tot_len;             /* total length of fragments */
333 };
334 
335 typedef int (*rspq_handler_t)(struct sge_rspq *q, const __be64 *rsp,
336 			      const struct pkt_gl *gl);
337 
338 struct sge_rspq {                   /* state for an SGE response queue */
339 	struct napi_struct napi;
340 	const __be64 *cur_desc;     /* current descriptor in queue */
341 	unsigned int cidx;          /* consumer index */
342 	u8 gen;                     /* current generation bit */
343 	u8 intr_params;             /* interrupt holdoff parameters */
344 	u8 next_intr_params;        /* holdoff params for next interrupt */
345 	u8 pktcnt_idx;              /* interrupt packet threshold */
346 	u8 uld;                     /* ULD handling this queue */
347 	u8 idx;                     /* queue index within its group */
348 	int offset;                 /* offset into current Rx buffer */
349 	u16 cntxt_id;               /* SGE context id for the response q */
350 	u16 abs_id;                 /* absolute SGE id for the response q */
351 	__be64 *desc;               /* address of HW response ring */
352 	dma_addr_t phys_addr;       /* physical address of the ring */
353 	unsigned int iqe_len;       /* entry size */
354 	unsigned int size;          /* capacity of response queue */
355 	struct adapter *adap;
356 	struct net_device *netdev;  /* associated net device */
357 	rspq_handler_t handler;
358 };
359 
360 struct sge_eth_stats {              /* Ethernet queue statistics */
361 	unsigned long pkts;         /* # of ethernet packets */
362 	unsigned long lro_pkts;     /* # of LRO super packets */
363 	unsigned long lro_merged;   /* # of wire packets merged by LRO */
364 	unsigned long rx_cso;       /* # of Rx checksum offloads */
365 	unsigned long vlan_ex;      /* # of Rx VLAN extractions */
366 	unsigned long rx_drops;     /* # of packets dropped due to no mem */
367 };
368 
369 struct sge_eth_rxq {                /* SW Ethernet Rx queue */
370 	struct sge_rspq rspq;
371 	struct sge_fl fl;
372 	struct sge_eth_stats stats;
373 } ____cacheline_aligned_in_smp;
374 
375 struct sge_ofld_stats {             /* offload queue statistics */
376 	unsigned long pkts;         /* # of packets */
377 	unsigned long imm;          /* # of immediate-data packets */
378 	unsigned long an;           /* # of asynchronous notifications */
379 	unsigned long nomem;        /* # of responses deferred due to no mem */
380 };
381 
382 struct sge_ofld_rxq {               /* SW offload Rx queue */
383 	struct sge_rspq rspq;
384 	struct sge_fl fl;
385 	struct sge_ofld_stats stats;
386 } ____cacheline_aligned_in_smp;
387 
388 struct tx_desc {
389 	__be64 flit[8];
390 };
391 
392 struct tx_sw_desc;
393 
394 struct sge_txq {
395 	unsigned int  in_use;       /* # of in-use Tx descriptors */
396 	unsigned int  size;         /* # of descriptors */
397 	unsigned int  cidx;         /* SW consumer index */
398 	unsigned int  pidx;         /* producer index */
399 	unsigned long stops;        /* # of times q has been stopped */
400 	unsigned long restarts;     /* # of queue restarts */
401 	unsigned int  cntxt_id;     /* SGE context id for the Tx q */
402 	struct tx_desc *desc;       /* address of HW Tx descriptor ring */
403 	struct tx_sw_desc *sdesc;   /* address of SW Tx descriptor ring */
404 	struct sge_qstat *stat;     /* queue status entry */
405 	dma_addr_t    phys_addr;    /* physical address of the ring */
406 };
407 
408 struct sge_eth_txq {                /* state for an SGE Ethernet Tx queue */
409 	struct sge_txq q;
410 	struct netdev_queue *txq;   /* associated netdev TX queue */
411 	unsigned long tso;          /* # of TSO requests */
412 	unsigned long tx_cso;       /* # of Tx checksum offloads */
413 	unsigned long vlan_ins;     /* # of Tx VLAN insertions */
414 	unsigned long mapping_err;  /* # of I/O MMU packet mapping errors */
415 } ____cacheline_aligned_in_smp;
416 
417 struct sge_ofld_txq {               /* state for an SGE offload Tx queue */
418 	struct sge_txq q;
419 	struct adapter *adap;
420 	struct sk_buff_head sendq;  /* list of backpressured packets */
421 	struct tasklet_struct qresume_tsk; /* restarts the queue */
422 	u8 full;                    /* the Tx ring is full */
423 	unsigned long mapping_err;  /* # of I/O MMU packet mapping errors */
424 } ____cacheline_aligned_in_smp;
425 
426 struct sge_ctrl_txq {               /* state for an SGE control Tx queue */
427 	struct sge_txq q;
428 	struct adapter *adap;
429 	struct sk_buff_head sendq;  /* list of backpressured packets */
430 	struct tasklet_struct qresume_tsk; /* restarts the queue */
431 	u8 full;                    /* the Tx ring is full */
432 } ____cacheline_aligned_in_smp;
433 
434 struct sge {
435 	struct sge_eth_txq ethtxq[MAX_ETH_QSETS];
436 	struct sge_ofld_txq ofldtxq[MAX_OFLD_QSETS];
437 	struct sge_ctrl_txq ctrlq[MAX_CTRL_QUEUES];
438 
439 	struct sge_eth_rxq ethrxq[MAX_ETH_QSETS];
440 	struct sge_ofld_rxq ofldrxq[MAX_OFLD_QSETS];
441 	struct sge_ofld_rxq rdmarxq[MAX_RDMA_QUEUES];
442 	struct sge_rspq fw_evtq ____cacheline_aligned_in_smp;
443 
444 	struct sge_rspq intrq ____cacheline_aligned_in_smp;
445 	spinlock_t intrq_lock;
446 
447 	u16 max_ethqsets;           /* # of available Ethernet queue sets */
448 	u16 ethqsets;               /* # of active Ethernet queue sets */
449 	u16 ethtxq_rover;           /* Tx queue to clean up next */
450 	u16 ofldqsets;              /* # of active offload queue sets */
451 	u16 rdmaqs;                 /* # of available RDMA Rx queues */
452 	u16 ofld_rxq[MAX_OFLD_QSETS];
453 	u16 rdma_rxq[NCHAN];
454 	u16 timer_val[SGE_NTIMERS];
455 	u8 counter_val[SGE_NCOUNTERS];
456 	unsigned int starve_thres;
457 	u8 idma_state[2];
458 	unsigned int egr_start;
459 	unsigned int ingr_start;
460 	void *egr_map[MAX_EGRQ];    /* qid->queue egress queue map */
461 	struct sge_rspq *ingr_map[MAX_INGQ]; /* qid->queue ingress queue map */
462 	DECLARE_BITMAP(starving_fl, MAX_EGRQ);
463 	DECLARE_BITMAP(txq_maperr, MAX_EGRQ);
464 	struct timer_list rx_timer; /* refills starving FLs */
465 	struct timer_list tx_timer; /* checks Tx queues */
466 };
467 
468 #define for_each_ethrxq(sge, i) for (i = 0; i < (sge)->ethqsets; i++)
469 #define for_each_ofldrxq(sge, i) for (i = 0; i < (sge)->ofldqsets; i++)
470 #define for_each_rdmarxq(sge, i) for (i = 0; i < (sge)->rdmaqs; i++)
471 
472 struct l2t_data;
473 
474 struct adapter {
475 	void __iomem *regs;
476 	struct pci_dev *pdev;
477 	struct device *pdev_dev;
478 	unsigned int fn;
479 	unsigned int flags;
480 
481 	int msg_enable;
482 
483 	struct adapter_params params;
484 	struct cxgb4_virt_res vres;
485 	unsigned int swintr;
486 
487 	unsigned int wol;
488 
489 	struct {
490 		unsigned short vec;
491 		char desc[IFNAMSIZ + 10];
492 	} msix_info[MAX_INGQ + 1];
493 
494 	struct sge sge;
495 
496 	struct net_device *port[MAX_NPORTS];
497 	u8 chan_map[NCHAN];                   /* channel -> port map */
498 
499 	struct l2t_data *l2t;
500 	void *uld_handle[CXGB4_ULD_MAX];
501 	struct list_head list_node;
502 
503 	struct tid_info tids;
504 	void **tid_release_head;
505 	spinlock_t tid_release_lock;
506 	struct work_struct tid_release_task;
507 	bool tid_release_task_busy;
508 
509 	struct dentry *debugfs_root;
510 
511 	spinlock_t stats_lock;
512 };
513 
t4_read_reg(struct adapter * adap,u32 reg_addr)514 static inline u32 t4_read_reg(struct adapter *adap, u32 reg_addr)
515 {
516 	return readl(adap->regs + reg_addr);
517 }
518 
t4_write_reg(struct adapter * adap,u32 reg_addr,u32 val)519 static inline void t4_write_reg(struct adapter *adap, u32 reg_addr, u32 val)
520 {
521 	writel(val, adap->regs + reg_addr);
522 }
523 
524 #ifndef readq
readq(const volatile void __iomem * addr)525 static inline u64 readq(const volatile void __iomem *addr)
526 {
527 	return readl(addr) + ((u64)readl(addr + 4) << 32);
528 }
529 
writeq(u64 val,volatile void __iomem * addr)530 static inline void writeq(u64 val, volatile void __iomem *addr)
531 {
532 	writel(val, addr);
533 	writel(val >> 32, addr + 4);
534 }
535 #endif
536 
t4_read_reg64(struct adapter * adap,u32 reg_addr)537 static inline u64 t4_read_reg64(struct adapter *adap, u32 reg_addr)
538 {
539 	return readq(adap->regs + reg_addr);
540 }
541 
t4_write_reg64(struct adapter * adap,u32 reg_addr,u64 val)542 static inline void t4_write_reg64(struct adapter *adap, u32 reg_addr, u64 val)
543 {
544 	writeq(val, adap->regs + reg_addr);
545 }
546 
547 /**
548  * netdev2pinfo - return the port_info structure associated with a net_device
549  * @dev: the netdev
550  *
551  * Return the struct port_info associated with a net_device
552  */
netdev2pinfo(const struct net_device * dev)553 static inline struct port_info *netdev2pinfo(const struct net_device *dev)
554 {
555 	return netdev_priv(dev);
556 }
557 
558 /**
559  * adap2pinfo - return the port_info of a port
560  * @adap: the adapter
561  * @idx: the port index
562  *
563  * Return the port_info structure for the port of the given index.
564  */
adap2pinfo(struct adapter * adap,int idx)565 static inline struct port_info *adap2pinfo(struct adapter *adap, int idx)
566 {
567 	return netdev_priv(adap->port[idx]);
568 }
569 
570 /**
571  * netdev2adap - return the adapter structure associated with a net_device
572  * @dev: the netdev
573  *
574  * Return the struct adapter associated with a net_device
575  */
netdev2adap(const struct net_device * dev)576 static inline struct adapter *netdev2adap(const struct net_device *dev)
577 {
578 	return netdev2pinfo(dev)->adapter;
579 }
580 
581 void t4_os_portmod_changed(const struct adapter *adap, int port_id);
582 void t4_os_link_changed(struct adapter *adap, int port_id, int link_stat);
583 
584 void *t4_alloc_mem(size_t size);
585 
586 void t4_free_sge_resources(struct adapter *adap);
587 irq_handler_t t4_intr_handler(struct adapter *adap);
588 netdev_tx_t t4_eth_xmit(struct sk_buff *skb, struct net_device *dev);
589 int t4_ethrx_handler(struct sge_rspq *q, const __be64 *rsp,
590 		     const struct pkt_gl *gl);
591 int t4_mgmt_tx(struct adapter *adap, struct sk_buff *skb);
592 int t4_ofld_send(struct adapter *adap, struct sk_buff *skb);
593 int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *iq, bool fwevtq,
594 		     struct net_device *dev, int intr_idx,
595 		     struct sge_fl *fl, rspq_handler_t hnd);
596 int t4_sge_alloc_eth_txq(struct adapter *adap, struct sge_eth_txq *txq,
597 			 struct net_device *dev, struct netdev_queue *netdevq,
598 			 unsigned int iqid);
599 int t4_sge_alloc_ctrl_txq(struct adapter *adap, struct sge_ctrl_txq *txq,
600 			  struct net_device *dev, unsigned int iqid,
601 			  unsigned int cmplqid);
602 int t4_sge_alloc_ofld_txq(struct adapter *adap, struct sge_ofld_txq *txq,
603 			  struct net_device *dev, unsigned int iqid);
604 irqreturn_t t4_sge_intr_msix(int irq, void *cookie);
605 void t4_sge_init(struct adapter *adap);
606 void t4_sge_start(struct adapter *adap);
607 void t4_sge_stop(struct adapter *adap);
608 
609 #define for_each_port(adapter, iter) \
610 	for (iter = 0; iter < (adapter)->params.nports; ++iter)
611 
core_ticks_per_usec(const struct adapter * adap)612 static inline unsigned int core_ticks_per_usec(const struct adapter *adap)
613 {
614 	return adap->params.vpd.cclk / 1000;
615 }
616 
us_to_core_ticks(const struct adapter * adap,unsigned int us)617 static inline unsigned int us_to_core_ticks(const struct adapter *adap,
618 					    unsigned int us)
619 {
620 	return (us * adap->params.vpd.cclk) / 1000;
621 }
622 
623 void t4_set_reg_field(struct adapter *adap, unsigned int addr, u32 mask,
624 		      u32 val);
625 
626 int t4_wr_mbox_meat(struct adapter *adap, int mbox, const void *cmd, int size,
627 		    void *rpl, bool sleep_ok);
628 
t4_wr_mbox(struct adapter * adap,int mbox,const void * cmd,int size,void * rpl)629 static inline int t4_wr_mbox(struct adapter *adap, int mbox, const void *cmd,
630 			     int size, void *rpl)
631 {
632 	return t4_wr_mbox_meat(adap, mbox, cmd, size, rpl, true);
633 }
634 
t4_wr_mbox_ns(struct adapter * adap,int mbox,const void * cmd,int size,void * rpl)635 static inline int t4_wr_mbox_ns(struct adapter *adap, int mbox, const void *cmd,
636 				int size, void *rpl)
637 {
638 	return t4_wr_mbox_meat(adap, mbox, cmd, size, rpl, false);
639 }
640 
641 void t4_intr_enable(struct adapter *adapter);
642 void t4_intr_disable(struct adapter *adapter);
643 int t4_slow_intr_handler(struct adapter *adapter);
644 
645 int t4_wait_dev_ready(struct adapter *adap);
646 int t4_link_start(struct adapter *adap, unsigned int mbox, unsigned int port,
647 		  struct link_config *lc);
648 int t4_restart_aneg(struct adapter *adap, unsigned int mbox, unsigned int port);
649 int t4_seeprom_wp(struct adapter *adapter, bool enable);
650 int t4_load_fw(struct adapter *adapter, const u8 *fw_data, unsigned int size);
651 int t4_check_fw_version(struct adapter *adapter);
652 int t4_prep_adapter(struct adapter *adapter);
653 int t4_port_init(struct adapter *adap, int mbox, int pf, int vf);
654 void t4_fatal_err(struct adapter *adapter);
655 int t4_config_rss_range(struct adapter *adapter, int mbox, unsigned int viid,
656 			int start, int n, const u16 *rspq, unsigned int nrspq);
657 int t4_config_glbl_rss(struct adapter *adapter, int mbox, unsigned int mode,
658 		       unsigned int flags);
659 int t4_mc_read(struct adapter *adap, u32 addr, __be32 *data, u64 *parity);
660 int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data,
661 		u64 *parity);
662 
663 void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p);
664 void t4_read_mtu_tbl(struct adapter *adap, u16 *mtus, u8 *mtu_log);
665 void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4,
666 			 struct tp_tcp_stats *v6);
667 void t4_load_mtus(struct adapter *adap, const unsigned short *mtus,
668 		  const unsigned short *alpha, const unsigned short *beta);
669 
670 void t4_wol_magic_enable(struct adapter *adap, unsigned int port,
671 			 const u8 *addr);
672 int t4_wol_pat_enable(struct adapter *adap, unsigned int port, unsigned int map,
673 		      u64 mask0, u64 mask1, unsigned int crc, bool enable);
674 
675 int t4_fw_hello(struct adapter *adap, unsigned int mbox, unsigned int evt_mbox,
676 		enum dev_master master, enum dev_state *state);
677 int t4_fw_bye(struct adapter *adap, unsigned int mbox);
678 int t4_early_init(struct adapter *adap, unsigned int mbox);
679 int t4_fw_reset(struct adapter *adap, unsigned int mbox, int reset);
680 int t4_query_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
681 		    unsigned int vf, unsigned int nparams, const u32 *params,
682 		    u32 *val);
683 int t4_set_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
684 		  unsigned int vf, unsigned int nparams, const u32 *params,
685 		  const u32 *val);
686 int t4_cfg_pfvf(struct adapter *adap, unsigned int mbox, unsigned int pf,
687 		unsigned int vf, unsigned int txq, unsigned int txq_eth_ctrl,
688 		unsigned int rxqi, unsigned int rxq, unsigned int tc,
689 		unsigned int vi, unsigned int cmask, unsigned int pmask,
690 		unsigned int nexact, unsigned int rcaps, unsigned int wxcaps);
691 int t4_alloc_vi(struct adapter *adap, unsigned int mbox, unsigned int port,
692 		unsigned int pf, unsigned int vf, unsigned int nmac, u8 *mac,
693 		unsigned int *rss_size);
694 int t4_set_rxmode(struct adapter *adap, unsigned int mbox, unsigned int viid,
695 		int mtu, int promisc, int all_multi, int bcast, int vlanex,
696 		bool sleep_ok);
697 int t4_alloc_mac_filt(struct adapter *adap, unsigned int mbox,
698 		      unsigned int viid, bool free, unsigned int naddr,
699 		      const u8 **addr, u16 *idx, u64 *hash, bool sleep_ok);
700 int t4_change_mac(struct adapter *adap, unsigned int mbox, unsigned int viid,
701 		  int idx, const u8 *addr, bool persist, bool add_smt);
702 int t4_set_addr_hash(struct adapter *adap, unsigned int mbox, unsigned int viid,
703 		     bool ucast, u64 vec, bool sleep_ok);
704 int t4_enable_vi(struct adapter *adap, unsigned int mbox, unsigned int viid,
705 		 bool rx_en, bool tx_en);
706 int t4_identify_port(struct adapter *adap, unsigned int mbox, unsigned int viid,
707 		     unsigned int nblinks);
708 int t4_mdio_rd(struct adapter *adap, unsigned int mbox, unsigned int phy_addr,
709 	       unsigned int mmd, unsigned int reg, u16 *valp);
710 int t4_mdio_wr(struct adapter *adap, unsigned int mbox, unsigned int phy_addr,
711 	       unsigned int mmd, unsigned int reg, u16 val);
712 int t4_iq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
713 	       unsigned int vf, unsigned int iqtype, unsigned int iqid,
714 	       unsigned int fl0id, unsigned int fl1id);
715 int t4_eth_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
716 		   unsigned int vf, unsigned int eqid);
717 int t4_ctrl_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
718 		    unsigned int vf, unsigned int eqid);
719 int t4_ofld_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
720 		    unsigned int vf, unsigned int eqid);
721 int t4_handle_fw_rpl(struct adapter *adap, const __be64 *rpl);
722 #endif /* __CXGB4_H__ */
723