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net/cxgb4: Avoid disabling PCI device for towice
[mirror_ubuntu-zesty-kernel.git] / drivers / net / ethernet / chelsio / cxgb4 / cxgb4_main.c
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b8ff05a9
DM		 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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
36
37#include <linux/bitmap.h>
38#include <linux/crc32.h>
39#include <linux/ctype.h>
40#include <linux/debugfs.h>
41#include <linux/err.h>
42#include <linux/etherdevice.h>
43#include <linux/firmware.h>
01789349 44#include <linux/if.h>
b8ff05a9
DM		 45#include <linux/if_vlan.h>
46#include <linux/init.h>
47#include <linux/log2.h>
48#include <linux/mdio.h>
49#include <linux/module.h>
50#include <linux/moduleparam.h>
51#include <linux/mutex.h>
52#include <linux/netdevice.h>
53#include <linux/pci.h>
54#include <linux/aer.h>
55#include <linux/rtnetlink.h>
56#include <linux/sched.h>
57#include <linux/seq_file.h>
58#include <linux/sockios.h>
59#include <linux/vmalloc.h>
60#include <linux/workqueue.h>
61#include <net/neighbour.h>
62#include <net/netevent.h>
01bcca68 63#include <net/addrconf.h>
b8ff05a9
DM		 64#include <asm/uaccess.h>
65
66#include "cxgb4.h"
67#include "t4_regs.h"
68#include "t4_msg.h"
69#include "t4fw_api.h"
70#include "l2t.h"
71
01bcca68
VP		 72#include <../drivers/net/bonding/bonding.h>
73
74#ifdef DRV_VERSION
75#undef DRV_VERSION
76#endif
3a7f8554
SR		 77#define DRV_VERSION "2.0.0-ko"
78#define DRV_DESC "Chelsio T4/T5 Network Driver"
b8ff05a9
DM		 79
80/*
81 * Max interrupt hold-off timer value in us. Queues fall back to this value
82 * under extreme memory pressure so it's largish to give the system time to
83 * recover.
84 */
85#define MAX_SGE_TIMERVAL 200U
86
7ee9ff94 87enum {
13ee15d3
VP		 88 /*
89 * Physical Function provisioning constants.
90 */
91 PFRES_NVI = 4, /* # of Virtual Interfaces */
92 PFRES_NETHCTRL = 128, /* # of EQs used for ETH or CTRL Qs */
93 PFRES_NIQFLINT = 128, /* # of ingress Qs/w Free List(s)/intr
94 */
95 PFRES_NEQ = 256, /* # of egress queues */
96 PFRES_NIQ = 0, /* # of ingress queues */
97 PFRES_TC = 0, /* PCI-E traffic class */
98 PFRES_NEXACTF = 128, /* # of exact MPS filters */
99
100 PFRES_R_CAPS = FW_CMD_CAP_PF,
101 PFRES_WX_CAPS = FW_CMD_CAP_PF,
102
103#ifdef CONFIG_PCI_IOV
104 /*
105 * Virtual Function provisioning constants. We need two extra Ingress
106 * Queues with Interrupt capability to serve as the VF's Firmware
107 * Event Queue and Forwarded Interrupt Queue (when using MSI mode) --
108 * neither will have Free Lists associated with them). For each
109 * Ethernet/Control Egress Queue and for each Free List, we need an
110 * Egress Context.
111 */
7ee9ff94
CL		 112 VFRES_NPORTS = 1, /* # of "ports" per VF */
113 VFRES_NQSETS = 2, /* # of "Queue Sets" per VF */
114
115 VFRES_NVI = VFRES_NPORTS, /* # of Virtual Interfaces */
116 VFRES_NETHCTRL = VFRES_NQSETS, /* # of EQs used for ETH or CTRL Qs */
117 VFRES_NIQFLINT = VFRES_NQSETS+2,/* # of ingress Qs/w Free List(s)/intr */
7ee9ff94 118 VFRES_NEQ = VFRES_NQSETS*2, /* # of egress queues */
13ee15d3 119 VFRES_NIQ = 0, /* # of non-fl/int ingress queues */
7ee9ff94
CL		 120 VFRES_TC = 0, /* PCI-E traffic class */
121 VFRES_NEXACTF = 16, /* # of exact MPS filters */
122
123 VFRES_R_CAPS = FW_CMD_CAP_DMAQ|FW_CMD_CAP_VF|FW_CMD_CAP_PORT,
124 VFRES_WX_CAPS = FW_CMD_CAP_DMAQ|FW_CMD_CAP_VF,
13ee15d3 125#endif
7ee9ff94
CL		 126};
127
128/*
129 * Provide a Port Access Rights Mask for the specified PF/VF. This is very
130 * static and likely not to be useful in the long run. We really need to
131 * implement some form of persistent configuration which the firmware
132 * controls.
133 */
134static unsigned int pfvfres_pmask(struct adapter *adapter,
135 unsigned int pf, unsigned int vf)
136{
137 unsigned int portn, portvec;
138
139 /*
140 * Give PF's access to all of the ports.
141 */
142 if (vf == 0)
143 return FW_PFVF_CMD_PMASK_MASK;
144
145 /*
146 * For VFs, we'll assign them access to the ports based purely on the
147 * PF. We assign active ports in order, wrapping around if there are
148 * fewer active ports than PFs: e.g. active port[pf % nports].
149 * Unfortunately the adapter's port_info structs haven't been
150 * initialized yet so we have to compute this.
151 */
152 if (adapter->params.nports == 0)
153 return 0;
154
155 portn = pf % adapter->params.nports;
156 portvec = adapter->params.portvec;
157 for (;;) {
158 /*
159 * Isolate the lowest set bit in the port vector. If we're at
160 * the port number that we want, return that as the pmask.
161 * otherwise mask that bit out of the port vector and
162 * decrement our port number ...
163 */
164 unsigned int pmask = portvec ^ (portvec & (portvec-1));
165 if (portn == 0)
166 return pmask;
167 portn--;
168 portvec &= ~pmask;
169 }
170 /*NOTREACHED*/
171}
7ee9ff94 172
b8ff05a9
DM		 173enum {
174 MAX_TXQ_ENTRIES = 16384,
175 MAX_CTRL_TXQ_ENTRIES = 1024,
176 MAX_RSPQ_ENTRIES = 16384,
177 MAX_RX_BUFFERS = 16384,
178 MIN_TXQ_ENTRIES = 32,
179 MIN_CTRL_TXQ_ENTRIES = 32,
180 MIN_RSPQ_ENTRIES = 128,
181 MIN_FL_ENTRIES = 16
182};
183
f2b7e78d
VP		 184/* Host shadow copy of ingress filter entry. This is in host native format
185 * and doesn't match the ordering or bit order, etc. of the hardware of the
186 * firmware command. The use of bit-field structure elements is purely to
187 * remind ourselves of the field size limitations and save memory in the case
188 * where the filter table is large.
189 */
190struct filter_entry {
191 /* Administrative fields for filter.
192 */
193 u32 valid:1; /* filter allocated and valid */
194 u32 locked:1; /* filter is administratively locked */
195
196 u32 pending:1; /* filter action is pending firmware reply */
197 u32 smtidx:8; /* Source MAC Table index for smac */
198 struct l2t_entry *l2t; /* Layer Two Table entry for dmac */
199
200 /* The filter itself. Most of this is a straight copy of information
201 * provided by the extended ioctl(). Some fields are translated to
202 * internal forms -- for instance the Ingress Queue ID passed in from
203 * the ioctl() is translated into the Absolute Ingress Queue ID.
204 */
205 struct ch_filter_specification fs;
206};
207
b8ff05a9
DM		 208#define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \
209 NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\
210 NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
211
060e0c75 212#define CH_DEVICE(devid, data) { PCI_VDEVICE(CHELSIO, devid), (data) }
b8ff05a9
DM		 213
214static DEFINE_PCI_DEVICE_TABLE(cxgb4_pci_tbl) = {
060e0c75 215 CH_DEVICE(0xa000, 0), /* PE10K */
ccea790e
DM		 216 CH_DEVICE(0x4001, -1),
217 CH_DEVICE(0x4002, -1),
218 CH_DEVICE(0x4003, -1),
219 CH_DEVICE(0x4004, -1),
220 CH_DEVICE(0x4005, -1),
221 CH_DEVICE(0x4006, -1),
222 CH_DEVICE(0x4007, -1),
223 CH_DEVICE(0x4008, -1),
224 CH_DEVICE(0x4009, -1),
225 CH_DEVICE(0x400a, -1),
226 CH_DEVICE(0x4401, 4),
227 CH_DEVICE(0x4402, 4),
228 CH_DEVICE(0x4403, 4),
229 CH_DEVICE(0x4404, 4),
230 CH_DEVICE(0x4405, 4),
231 CH_DEVICE(0x4406, 4),
232 CH_DEVICE(0x4407, 4),
233 CH_DEVICE(0x4408, 4),
234 CH_DEVICE(0x4409, 4),
235 CH_DEVICE(0x440a, 4),
f637d577
VP		 236 CH_DEVICE(0x440d, 4),
237 CH_DEVICE(0x440e, 4),
9ef603a0
VP		 238 CH_DEVICE(0x5001, 4),
239 CH_DEVICE(0x5002, 4),
240 CH_DEVICE(0x5003, 4),
241 CH_DEVICE(0x5004, 4),
242 CH_DEVICE(0x5005, 4),
243 CH_DEVICE(0x5006, 4),
244 CH_DEVICE(0x5007, 4),
245 CH_DEVICE(0x5008, 4),
246 CH_DEVICE(0x5009, 4),
247 CH_DEVICE(0x500A, 4),
248 CH_DEVICE(0x500B, 4),
249 CH_DEVICE(0x500C, 4),
250 CH_DEVICE(0x500D, 4),
251 CH_DEVICE(0x500E, 4),
252 CH_DEVICE(0x500F, 4),
253 CH_DEVICE(0x5010, 4),
254 CH_DEVICE(0x5011, 4),
255 CH_DEVICE(0x5012, 4),
256 CH_DEVICE(0x5013, 4),
257 CH_DEVICE(0x5401, 4),
258 CH_DEVICE(0x5402, 4),
259 CH_DEVICE(0x5403, 4),
260 CH_DEVICE(0x5404, 4),
261 CH_DEVICE(0x5405, 4),
262 CH_DEVICE(0x5406, 4),
263 CH_DEVICE(0x5407, 4),
264 CH_DEVICE(0x5408, 4),
265 CH_DEVICE(0x5409, 4),
266 CH_DEVICE(0x540A, 4),
267 CH_DEVICE(0x540B, 4),
268 CH_DEVICE(0x540C, 4),
269 CH_DEVICE(0x540D, 4),
270 CH_DEVICE(0x540E, 4),
271 CH_DEVICE(0x540F, 4),
272 CH_DEVICE(0x5410, 4),
273 CH_DEVICE(0x5411, 4),
274 CH_DEVICE(0x5412, 4),
275 CH_DEVICE(0x5413, 4),
b8ff05a9
DM		 276 { 0, }
277};
278
16e47624 279#define FW4_FNAME "cxgb4/t4fw.bin"
0a57a536 280#define FW5_FNAME "cxgb4/t5fw.bin"
16e47624 281#define FW4_CFNAME "cxgb4/t4-config.txt"
0a57a536 282#define FW5_CFNAME "cxgb4/t5-config.txt"
b8ff05a9
DM		 283
284MODULE_DESCRIPTION(DRV_DESC);
285MODULE_AUTHOR("Chelsio Communications");
286MODULE_LICENSE("Dual BSD/GPL");
287MODULE_VERSION(DRV_VERSION);
288MODULE_DEVICE_TABLE(pci, cxgb4_pci_tbl);
16e47624 289MODULE_FIRMWARE(FW4_FNAME);
0a57a536 290MODULE_FIRMWARE(FW5_FNAME);
b8ff05a9 291
636f9d37
VP		 292/*
293 * Normally we're willing to become the firmware's Master PF but will be happy
294 * if another PF has already become the Master and initialized the adapter.
295 * Setting "force_init" will cause this driver to forcibly establish itself as
296 * the Master PF and initialize the adapter.
297 */
298static uint force_init;
299
300module_param(force_init, uint, 0644);
301MODULE_PARM_DESC(force_init, "Forcibly become Master PF and initialize adapter");
302
13ee15d3
VP		 303/*
304 * Normally if the firmware we connect to has Configuration File support, we
305 * use that and only fall back to the old Driver-based initialization if the
306 * Configuration File fails for some reason. If force_old_init is set, then
307 * we'll always use the old Driver-based initialization sequence.
308 */
309static uint force_old_init;
310
311module_param(force_old_init, uint, 0644);
312MODULE_PARM_DESC(force_old_init, "Force old initialization sequence");
313
b8ff05a9
DM		 314static int dflt_msg_enable = DFLT_MSG_ENABLE;
315
316module_param(dflt_msg_enable, int, 0644);
317MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T4 default message enable bitmap");
318
319/*
320 * The driver uses the best interrupt scheme available on a platform in the
321 * order MSI-X, MSI, legacy INTx interrupts. This parameter determines which
322 * of these schemes the driver may consider as follows:
323 *
324 * msi = 2: choose from among all three options
325 * msi = 1: only consider MSI and INTx interrupts
326 * msi = 0: force INTx interrupts
327 */
328static int msi = 2;
329
330module_param(msi, int, 0644);
331MODULE_PARM_DESC(msi, "whether to use INTx (0), MSI (1) or MSI-X (2)");
332
333/*
334 * Queue interrupt hold-off timer values. Queues default to the first of these
335 * upon creation.
336 */
337static unsigned int intr_holdoff[SGE_NTIMERS - 1] = { 5, 10, 20, 50, 100 };
338
339module_param_array(intr_holdoff, uint, NULL, 0644);
340MODULE_PARM_DESC(intr_holdoff, "values for queue interrupt hold-off timers "
341 "0..4 in microseconds");
342
343static unsigned int intr_cnt[SGE_NCOUNTERS - 1] = { 4, 8, 16 };
344
345module_param_array(intr_cnt, uint, NULL, 0644);
346MODULE_PARM_DESC(intr_cnt,
347 "thresholds 1..3 for queue interrupt packet counters");
348
636f9d37
VP		 349/*
350 * Normally we tell the chip to deliver Ingress Packets into our DMA buffers
351 * offset by 2 bytes in order to have the IP headers line up on 4-byte
352 * boundaries. This is a requirement for many architectures which will throw
353 * a machine check fault if an attempt is made to access one of the 4-byte IP
354 * header fields on a non-4-byte boundary. And it's a major performance issue
355 * even on some architectures which allow it like some implementations of the
356 * x86 ISA. However, some architectures don't mind this and for some very
357 * edge-case performance sensitive applications (like forwarding large volumes
358 * of small packets), setting this DMA offset to 0 will decrease the number of
359 * PCI-E Bus transfers enough to measurably affect performance.
360 */
361static int rx_dma_offset = 2;
362
eb939922 363static bool vf_acls;
b8ff05a9
DM		 364
365#ifdef CONFIG_PCI_IOV
366module_param(vf_acls, bool, 0644);
367MODULE_PARM_DESC(vf_acls, "if set enable virtualization L2 ACL enforcement");
368
7d6727cf
SR		 369/* Configure the number of PCI-E Virtual Function which are to be instantiated
370 * on SR-IOV Capable Physical Functions.
0a57a536 371 */
7d6727cf 372static unsigned int num_vf[NUM_OF_PF_WITH_SRIOV];
b8ff05a9
DM		 373
374module_param_array(num_vf, uint, NULL, 0644);
7d6727cf 375MODULE_PARM_DESC(num_vf, "number of VFs for each of PFs 0-3");
b8ff05a9
DM		 376#endif
377
13ee15d3
VP		 378/*
379 * The filter TCAM has a fixed portion and a variable portion. The fixed
380 * portion can match on source/destination IP IPv4/IPv6 addresses and TCP/UDP
381 * ports. The variable portion is 36 bits which can include things like Exact
382 * Match MAC Index (9 bits), Ether Type (16 bits), IP Protocol (8 bits),
383 * [Inner] VLAN Tag (17 bits), etc. which, if all were somehow selected, would
384 * far exceed the 36-bit budget for this "compressed" header portion of the
385 * filter. Thus, we have a scarce resource which must be carefully managed.
386 *
387 * By default we set this up to mostly match the set of filter matching
388 * capabilities of T3 but with accommodations for some of T4's more
389 * interesting features:
390 *
391 * { IP Fragment (1), MPS Match Type (3), IP Protocol (8),
392 * [Inner] VLAN (17), Port (3), FCoE (1) }
393 */
394enum {
395 TP_VLAN_PRI_MAP_DEFAULT = HW_TPL_FR_MT_PR_IV_P_FC,
396 TP_VLAN_PRI_MAP_FIRST = FCOE_SHIFT,
397 TP_VLAN_PRI_MAP_LAST = FRAGMENTATION_SHIFT,
398};
399
400static unsigned int tp_vlan_pri_map = TP_VLAN_PRI_MAP_DEFAULT;
401
f2b7e78d
VP		 402module_param(tp_vlan_pri_map, uint, 0644);
403MODULE_PARM_DESC(tp_vlan_pri_map, "global compressed filter configuration");
404
b8ff05a9
DM		 405static struct dentry *cxgb4_debugfs_root;
406
407static LIST_HEAD(adapter_list);
408static DEFINE_MUTEX(uld_mutex);
01bcca68
VP		 409/* Adapter list to be accessed from atomic context */
410static LIST_HEAD(adap_rcu_list);
411static DEFINE_SPINLOCK(adap_rcu_lock);
b8ff05a9
DM		 412static struct cxgb4_uld_info ulds[CXGB4_ULD_MAX];
413static const char *uld_str[] = { "RDMA", "iSCSI" };
414
415static void link_report(struct net_device *dev)
416{
417 if (!netif_carrier_ok(dev))
418 netdev_info(dev, "link down\n");
419 else {
420 static const char *fc[] = { "no", "Rx", "Tx", "Tx/Rx" };
421
422 const char *s = "10Mbps";
423 const struct port_info *p = netdev_priv(dev);
424
425 switch (p->link_cfg.speed) {
426 case SPEED_10000:
427 s = "10Gbps";
428 break;
429 case SPEED_1000:
430 s = "1000Mbps";
431 break;
432 case SPEED_100:
433 s = "100Mbps";
434 break;
435 }
436
437 netdev_info(dev, "link up, %s, full-duplex, %s PAUSE\n", s,
438 fc[p->link_cfg.fc]);
439 }
440}
441
442void t4_os_link_changed(struct adapter *adapter, int port_id, int link_stat)
443{
444 struct net_device *dev = adapter->port[port_id];
445
446 /* Skip changes from disabled ports. */
447 if (netif_running(dev) && link_stat != netif_carrier_ok(dev)) {
448 if (link_stat)
449 netif_carrier_on(dev);
450 else
451 netif_carrier_off(dev);
452
453 link_report(dev);
454 }
455}
456
457void t4_os_portmod_changed(const struct adapter *adap, int port_id)
458{
459 static const char *mod_str[] = {
a0881cab 460 NULL, "LR", "SR", "ER", "passive DA", "active DA", "LRM"
b8ff05a9
DM		 461 };
462
463 const struct net_device *dev = adap->port[port_id];
464 const struct port_info *pi = netdev_priv(dev);
465
466 if (pi->mod_type == FW_PORT_MOD_TYPE_NONE)
467 netdev_info(dev, "port module unplugged\n");
a0881cab 468 else if (pi->mod_type < ARRAY_SIZE(mod_str))
b8ff05a9
DM		 469 netdev_info(dev, "%s module inserted\n", mod_str[pi->mod_type]);
470}
471
472/*
473 * Configure the exact and hash address filters to handle a port's multicast
474 * and secondary unicast MAC addresses.
475 */
476static int set_addr_filters(const struct net_device *dev, bool sleep)
477{
478 u64 mhash = 0;
479 u64 uhash = 0;
480 bool free = true;
481 u16 filt_idx[7];
482 const u8 *addr[7];
483 int ret, naddr = 0;
b8ff05a9
DM		 484 const struct netdev_hw_addr *ha;
485 int uc_cnt = netdev_uc_count(dev);
4a35ecf8 486 int mc_cnt = netdev_mc_count(dev);
b8ff05a9 487 const struct port_info *pi = netdev_priv(dev);
060e0c75 488 unsigned int mb = pi->adapter->fn;
b8ff05a9
DM		 489
490 /* first do the secondary unicast addresses */
491 netdev_for_each_uc_addr(ha, dev) {
492 addr[naddr++] = ha->addr;
493 if (--uc_cnt == 0 || naddr >= ARRAY_SIZE(addr)) {
060e0c75 494 ret = t4_alloc_mac_filt(pi->adapter, mb, pi->viid, free,
b8ff05a9
DM		 495 naddr, addr, filt_idx, &uhash, sleep);
496 if (ret < 0)
497 return ret;
498
499 free = false;
500 naddr = 0;
501 }
502 }
503
504 /* next set up the multicast addresses */
4a35ecf8
DM		 505 netdev_for_each_mc_addr(ha, dev) {
506 addr[naddr++] = ha->addr;
507 if (--mc_cnt == 0 || naddr >= ARRAY_SIZE(addr)) {
060e0c75 508 ret = t4_alloc_mac_filt(pi->adapter, mb, pi->viid, free,
b8ff05a9
DM		 509 naddr, addr, filt_idx, &mhash, sleep);
510 if (ret < 0)
511 return ret;
512
513 free = false;
514 naddr = 0;
515 }
516 }
517
060e0c75 518 return t4_set_addr_hash(pi->adapter, mb, pi->viid, uhash != 0,
b8ff05a9
DM		 519 uhash | mhash, sleep);
520}
521
3069ee9b
VP		 522int dbfifo_int_thresh = 10; /* 10 == 640 entry threshold */
523module_param(dbfifo_int_thresh, int, 0644);
524MODULE_PARM_DESC(dbfifo_int_thresh, "doorbell fifo interrupt threshold");
525
404d9e3f
VP		 526/*
527 * usecs to sleep while draining the dbfifo
528 */
529static int dbfifo_drain_delay = 1000;
3069ee9b
VP		 530module_param(dbfifo_drain_delay, int, 0644);
531MODULE_PARM_DESC(dbfifo_drain_delay,
532 "usecs to sleep while draining the dbfifo");
533
b8ff05a9
DM		 534/*
535 * Set Rx properties of a port, such as promiscruity, address filters, and MTU.
536 * If @mtu is -1 it is left unchanged.
537 */
538static int set_rxmode(struct net_device *dev, int mtu, bool sleep_ok)
539{
540 int ret;
541 struct port_info *pi = netdev_priv(dev);
542
543 ret = set_addr_filters(dev, sleep_ok);
544 if (ret == 0)
060e0c75 545 ret = t4_set_rxmode(pi->adapter, pi->adapter->fn, pi->viid, mtu,
b8ff05a9 546 (dev->flags & IFF_PROMISC) ? 1 : 0,
f8f5aafa 547 (dev->flags & IFF_ALLMULTI) ? 1 : 0, 1, -1,
b8ff05a9
DM		 548 sleep_ok);
549 return ret;
550}
551
3069ee9b
VP		 552static struct workqueue_struct *workq;
553
b8ff05a9
DM		 554/**
555 * link_start - enable a port
556 * @dev: the port to enable
557 *
558 * Performs the MAC and PHY actions needed to enable a port.
559 */
560static int link_start(struct net_device *dev)
561{
562 int ret;
563 struct port_info *pi = netdev_priv(dev);
060e0c75 564 unsigned int mb = pi->adapter->fn;
b8ff05a9
DM		 565
566 /*
567 * We do not set address filters and promiscuity here, the stack does
568 * that step explicitly.
569 */
060e0c75 570 ret = t4_set_rxmode(pi->adapter, mb, pi->viid, dev->mtu, -1, -1, -1,
f646968f 571 !!(dev->features & NETIF_F_HW_VLAN_CTAG_RX), true);
b8ff05a9 572 if (ret == 0) {
060e0c75 573 ret = t4_change_mac(pi->adapter, mb, pi->viid,
b8ff05a9 574 pi->xact_addr_filt, dev->dev_addr, true,
b6bd29e7 575 true);
b8ff05a9
DM		 576 if (ret >= 0) {
577 pi->xact_addr_filt = ret;
578 ret = 0;
579 }
580 }
581 if (ret == 0)
060e0c75
DM		 582 ret = t4_link_start(pi->adapter, mb, pi->tx_chan,
583 &pi->link_cfg);
b8ff05a9 584 if (ret == 0)
060e0c75 585 ret = t4_enable_vi(pi->adapter, mb, pi->viid, true, true);
b8ff05a9
DM		 586 return ret;
587}
588
f2b7e78d
VP		 589/* Clear a filter and release any of its resources that we own. This also
590 * clears the filter's "pending" status.
591 */
592static void clear_filter(struct adapter *adap, struct filter_entry *f)
593{
594 /* If the new or old filter have loopback rewriteing rules then we'll
595 * need to free any existing Layer Two Table (L2T) entries of the old
596 * filter rule. The firmware will handle freeing up any Source MAC
597 * Table (SMT) entries used for rewriting Source MAC Addresses in
598 * loopback rules.
599 */
600 if (f->l2t)
601 cxgb4_l2t_release(f->l2t);
602
603 /* The zeroing of the filter rule below clears the filter valid,
604 * pending, locked flags, l2t pointer, etc. so it's all we need for
605 * this operation.
606 */
607 memset(f, 0, sizeof(*f));
608}
609
610/* Handle a filter write/deletion reply.
611 */
612static void filter_rpl(struct adapter *adap, const struct cpl_set_tcb_rpl *rpl)
613{
614 unsigned int idx = GET_TID(rpl);
615 unsigned int nidx = idx - adap->tids.ftid_base;
616 unsigned int ret;
617 struct filter_entry *f;
618
619 if (idx >= adap->tids.ftid_base && nidx <
620 (adap->tids.nftids + adap->tids.nsftids)) {
621 idx = nidx;
622 ret = GET_TCB_COOKIE(rpl->cookie);
623 f = &adap->tids.ftid_tab[idx];
624
625 if (ret == FW_FILTER_WR_FLT_DELETED) {
626 /* Clear the filter when we get confirmation from the
627 * hardware that the filter has been deleted.
628 */
629 clear_filter(adap, f);
630 } else if (ret == FW_FILTER_WR_SMT_TBL_FULL) {
631 dev_err(adap->pdev_dev, "filter %u setup failed due to full SMT\n",
632 idx);
633 clear_filter(adap, f);
634 } else if (ret == FW_FILTER_WR_FLT_ADDED) {
635 f->smtidx = (be64_to_cpu(rpl->oldval) >> 24) & 0xff;
636 f->pending = 0; /* asynchronous setup completed */
637 f->valid = 1;
638 } else {
639 /* Something went wrong. Issue a warning about the
640 * problem and clear everything out.
641 */
642 dev_err(adap->pdev_dev, "filter %u setup failed with error %u\n",
643 idx, ret);
644 clear_filter(adap, f);
645 }
646 }
647}
648
649/* Response queue handler for the FW event queue.
b8ff05a9
DM		 650 */
651static int fwevtq_handler(struct sge_rspq *q, const __be64 *rsp,
652 const struct pkt_gl *gl)
653{
654 u8 opcode = ((const struct rss_header *)rsp)->opcode;
655
656 rsp++; /* skip RSS header */
b407a4a9
VP		 657
658 /* FW can send EGR_UPDATEs encapsulated in a CPL_FW4_MSG.
659 */
660 if (unlikely(opcode == CPL_FW4_MSG &&
661 ((const struct cpl_fw4_msg *)rsp)->type == FW_TYPE_RSSCPL)) {
662 rsp++;
663 opcode = ((const struct rss_header *)rsp)->opcode;
664 rsp++;
665 if (opcode != CPL_SGE_EGR_UPDATE) {
666 dev_err(q->adap->pdev_dev, "unexpected FW4/CPL %#x on FW event queue\n"
667 , opcode);
668 goto out;
669 }
670 }
671
b8ff05a9
DM		 672 if (likely(opcode == CPL_SGE_EGR_UPDATE)) {
673 const struct cpl_sge_egr_update *p = (void *)rsp;
674 unsigned int qid = EGR_QID(ntohl(p->opcode_qid));
e46dab4d 675 struct sge_txq *txq;
b8ff05a9 676
e46dab4d 677 txq = q->adap->sge.egr_map[qid - q->adap->sge.egr_start];
b8ff05a9 678 txq->restarts++;
e46dab4d 679 if ((u8 *)txq < (u8 *)q->adap->sge.ofldtxq) {
b8ff05a9
DM		 680 struct sge_eth_txq *eq;
681
682 eq = container_of(txq, struct sge_eth_txq, q);
683 netif_tx_wake_queue(eq->txq);
684 } else {
685 struct sge_ofld_txq *oq;
686
687 oq = container_of(txq, struct sge_ofld_txq, q);
688 tasklet_schedule(&oq->qresume_tsk);
689 }
690 } else if (opcode == CPL_FW6_MSG || opcode == CPL_FW4_MSG) {
691 const struct cpl_fw6_msg *p = (void *)rsp;
692
693 if (p->type == 0)
694 t4_handle_fw_rpl(q->adap, p->data);
695 } else if (opcode == CPL_L2T_WRITE_RPL) {
696 const struct cpl_l2t_write_rpl *p = (void *)rsp;
697
698 do_l2t_write_rpl(q->adap, p);
f2b7e78d
VP		 699 } else if (opcode == CPL_SET_TCB_RPL) {
700 const struct cpl_set_tcb_rpl *p = (void *)rsp;
701
702 filter_rpl(q->adap, p);
b8ff05a9
DM		 703 } else
704 dev_err(q->adap->pdev_dev,
705 "unexpected CPL %#x on FW event queue\n", opcode);
b407a4a9 706out:
b8ff05a9
DM		 707 return 0;
708}
709
710/**
711 * uldrx_handler - response queue handler for ULD queues
712 * @q: the response queue that received the packet
713 * @rsp: the response queue descriptor holding the offload message
714 * @gl: the gather list of packet fragments
715 *
716 * Deliver an ingress offload packet to a ULD. All processing is done by
717 * the ULD, we just maintain statistics.
718 */
719static int uldrx_handler(struct sge_rspq *q, const __be64 *rsp,
720 const struct pkt_gl *gl)
721{
722 struct sge_ofld_rxq *rxq = container_of(q, struct sge_ofld_rxq, rspq);
723
b407a4a9
VP		 724 /* FW can send CPLs encapsulated in a CPL_FW4_MSG.
725 */
726 if (((const struct rss_header *)rsp)->opcode == CPL_FW4_MSG &&
727 ((const struct cpl_fw4_msg *)(rsp + 1))->type == FW_TYPE_RSSCPL)
728 rsp += 2;
729
b8ff05a9
DM		 730 if (ulds[q->uld].rx_handler(q->adap->uld_handle[q->uld], rsp, gl)) {
731 rxq->stats.nomem++;
732 return -1;
733 }
734 if (gl == NULL)
735 rxq->stats.imm++;
736 else if (gl == CXGB4_MSG_AN)
737 rxq->stats.an++;
738 else
739 rxq->stats.pkts++;
740 return 0;
741}
742
743static void disable_msi(struct adapter *adapter)
744{
745 if (adapter->flags & USING_MSIX) {
746 pci_disable_msix(adapter->pdev);
747 adapter->flags &= ~USING_MSIX;
748 } else if (adapter->flags & USING_MSI) {
749 pci_disable_msi(adapter->pdev);
750 adapter->flags &= ~USING_MSI;
751 }
752}
753
754/*
755 * Interrupt handler for non-data events used with MSI-X.
756 */
757static irqreturn_t t4_nondata_intr(int irq, void *cookie)
758{
759 struct adapter *adap = cookie;
760
761 u32 v = t4_read_reg(adap, MYPF_REG(PL_PF_INT_CAUSE));
762 if (v & PFSW) {
763 adap->swintr = 1;
764 t4_write_reg(adap, MYPF_REG(PL_PF_INT_CAUSE), v);
765 }
766 t4_slow_intr_handler(adap);
767 return IRQ_HANDLED;
768}
769
770/*
771 * Name the MSI-X interrupts.
772 */
773static void name_msix_vecs(struct adapter *adap)
774{
ba27816c 775 int i, j, msi_idx = 2, n = sizeof(adap->msix_info[0].desc);
b8ff05a9
DM		 776
777 /* non-data interrupts */
b1a3c2b6 778 snprintf(adap->msix_info[0].desc, n, "%s", adap->port[0]->name);
b8ff05a9
DM		 779
780 /* FW events */
b1a3c2b6
DM		 781 snprintf(adap->msix_info[1].desc, n, "%s-FWeventq",
782 adap->port[0]->name);
b8ff05a9
DM		 783
784 /* Ethernet queues */
785 for_each_port(adap, j) {
786 struct net_device *d = adap->port[j];
787 const struct port_info *pi = netdev_priv(d);
788
ba27816c 789 for (i = 0; i < pi->nqsets; i++, msi_idx++)
b8ff05a9
DM		 790 snprintf(adap->msix_info[msi_idx].desc, n, "%s-Rx%d",
791 d->name, i);
b8ff05a9
DM		 792 }
793
794 /* offload queues */
ba27816c
DM		 795 for_each_ofldrxq(&adap->sge, i)
796 snprintf(adap->msix_info[msi_idx++].desc, n, "%s-ofld%d",
b1a3c2b6 797 adap->port[0]->name, i);
ba27816c
DM		 798
799 for_each_rdmarxq(&adap->sge, i)
800 snprintf(adap->msix_info[msi_idx++].desc, n, "%s-rdma%d",
b1a3c2b6 801 adap->port[0]->name, i);
b8ff05a9
DM		 802}
803
804static int request_msix_queue_irqs(struct adapter *adap)
805{
806 struct sge *s = &adap->sge;
404d9e3f 807 int err, ethqidx, ofldqidx = 0, rdmaqidx = 0, msi_index = 2;
b8ff05a9
DM		 808
809 err = request_irq(adap->msix_info[1].vec, t4_sge_intr_msix, 0,
810 adap->msix_info[1].desc, &s->fw_evtq);
811 if (err)
812 return err;
813
814 for_each_ethrxq(s, ethqidx) {
404d9e3f
VP		 815 err = request_irq(adap->msix_info[msi_index].vec,
816 t4_sge_intr_msix, 0,
817 adap->msix_info[msi_index].desc,
b8ff05a9
DM		 818 &s->ethrxq[ethqidx].rspq);
819 if (err)
820 goto unwind;
404d9e3f 821 msi_index++;
b8ff05a9
DM		 822 }
823 for_each_ofldrxq(s, ofldqidx) {
404d9e3f
VP		 824 err = request_irq(adap->msix_info[msi_index].vec,
825 t4_sge_intr_msix, 0,
826 adap->msix_info[msi_index].desc,
b8ff05a9
DM		 827 &s->ofldrxq[ofldqidx].rspq);
828 if (err)
829 goto unwind;
404d9e3f 830 msi_index++;
b8ff05a9
DM		 831 }
832 for_each_rdmarxq(s, rdmaqidx) {
404d9e3f
VP		 833 err = request_irq(adap->msix_info[msi_index].vec,
834 t4_sge_intr_msix, 0,
835 adap->msix_info[msi_index].desc,
b8ff05a9
DM		 836 &s->rdmarxq[rdmaqidx].rspq);
837 if (err)
838 goto unwind;
404d9e3f 839 msi_index++;
b8ff05a9
DM		 840 }
841 return 0;
842
843unwind:
844 while (--rdmaqidx >= 0)
404d9e3f 845 free_irq(adap->msix_info[--msi_index].vec,
b8ff05a9
DM		 846 &s->rdmarxq[rdmaqidx].rspq);
847 while (--ofldqidx >= 0)
404d9e3f 848 free_irq(adap->msix_info[--msi_index].vec,
b8ff05a9
DM		 849 &s->ofldrxq[ofldqidx].rspq);
850 while (--ethqidx >= 0)
404d9e3f
VP		 851 free_irq(adap->msix_info[--msi_index].vec,
852 &s->ethrxq[ethqidx].rspq);
b8ff05a9
DM		 853 free_irq(adap->msix_info[1].vec, &s->fw_evtq);
854 return err;
855}
856
857static void free_msix_queue_irqs(struct adapter *adap)
858{
404d9e3f 859 int i, msi_index = 2;
b8ff05a9
DM		 860 struct sge *s = &adap->sge;
861
862 free_irq(adap->msix_info[1].vec, &s->fw_evtq);
863 for_each_ethrxq(s, i)
404d9e3f 864 free_irq(adap->msix_info[msi_index++].vec, &s->ethrxq[i].rspq);
b8ff05a9 865 for_each_ofldrxq(s, i)
404d9e3f 866 free_irq(adap->msix_info[msi_index++].vec, &s->ofldrxq[i].rspq);
b8ff05a9 867 for_each_rdmarxq(s, i)
404d9e3f 868 free_irq(adap->msix_info[msi_index++].vec, &s->rdmarxq[i].rspq);
b8ff05a9
DM		 869}
870
671b0060
DM		 871/**
872 * write_rss - write the RSS table for a given port
873 * @pi: the port
874 * @queues: array of queue indices for RSS
875 *
876 * Sets up the portion of the HW RSS table for the port's VI to distribute
877 * packets to the Rx queues in @queues.
878 */
879static int write_rss(const struct port_info *pi, const u16 *queues)
880{
881 u16 *rss;
882 int i, err;
883 const struct sge_eth_rxq *q = &pi->adapter->sge.ethrxq[pi->first_qset];
884
885 rss = kmalloc(pi->rss_size * sizeof(u16), GFP_KERNEL);
886 if (!rss)
887 return -ENOMEM;
888
889 /* map the queue indices to queue ids */
890 for (i = 0; i < pi->rss_size; i++, queues++)
891 rss[i] = q[*queues].rspq.abs_id;
892
060e0c75
DM		 893 err = t4_config_rss_range(pi->adapter, pi->adapter->fn, pi->viid, 0,
894 pi->rss_size, rss, pi->rss_size);
671b0060
DM		 895 kfree(rss);
896 return err;
897}
898
b8ff05a9
DM		 899/**
900 * setup_rss - configure RSS
901 * @adap: the adapter
902 *
671b0060 903 * Sets up RSS for each port.
b8ff05a9
DM		 904 */
905static int setup_rss(struct adapter *adap)
906{
671b0060 907 int i, err;
b8ff05a9
DM		 908
909 for_each_port(adap, i) {
910 const struct port_info *pi = adap2pinfo(adap, i);
b8ff05a9 911
671b0060 912 err = write_rss(pi, pi->rss);
b8ff05a9
DM		 913 if (err)
914 return err;
915 }
916 return 0;
917}
918
e46dab4d
DM		 919/*
920 * Return the channel of the ingress queue with the given qid.
921 */
922static unsigned int rxq_to_chan(const struct sge *p, unsigned int qid)
923{
924 qid -= p->ingr_start;
925 return netdev2pinfo(p->ingr_map[qid]->netdev)->tx_chan;
926}
927
b8ff05a9
DM		 928/*
929 * Wait until all NAPI handlers are descheduled.
930 */
931static void quiesce_rx(struct adapter *adap)
932{
933 int i;
934
935 for (i = 0; i < ARRAY_SIZE(adap->sge.ingr_map); i++) {
936 struct sge_rspq *q = adap->sge.ingr_map[i];
937
938 if (q && q->handler)
939 napi_disable(&q->napi);
940 }
941}
942
943/*
944 * Enable NAPI scheduling and interrupt generation for all Rx queues.
945 */
946static void enable_rx(struct adapter *adap)
947{
948 int i;
949
950 for (i = 0; i < ARRAY_SIZE(adap->sge.ingr_map); i++) {
951 struct sge_rspq *q = adap->sge.ingr_map[i];
952
953 if (!q)
954 continue;
955 if (q->handler)
956 napi_enable(&q->napi);
957 /* 0-increment GTS to start the timer and enable interrupts */
958 t4_write_reg(adap, MYPF_REG(SGE_PF_GTS),
959 SEINTARM(q->intr_params) |
960 INGRESSQID(q->cntxt_id));
961 }
962}
963
964/**
965 * setup_sge_queues - configure SGE Tx/Rx/response queues
966 * @adap: the adapter
967 *
968 * Determines how many sets of SGE queues to use and initializes them.
969 * We support multiple queue sets per port if we have MSI-X, otherwise
970 * just one queue set per port.
971 */
972static int setup_sge_queues(struct adapter *adap)
973{
974 int err, msi_idx, i, j;
975 struct sge *s = &adap->sge;
976
977 bitmap_zero(s->starving_fl, MAX_EGRQ);
978 bitmap_zero(s->txq_maperr, MAX_EGRQ);
979
980 if (adap->flags & USING_MSIX)
981 msi_idx = 1; /* vector 0 is for non-queue interrupts */
982 else {
983 err = t4_sge_alloc_rxq(adap, &s->intrq, false, adap->port[0], 0,
984 NULL, NULL);
985 if (err)
986 return err;
987 msi_idx = -((int)s->intrq.abs_id + 1);
988 }
989
990 err = t4_sge_alloc_rxq(adap, &s->fw_evtq, true, adap->port[0],
991 msi_idx, NULL, fwevtq_handler);
992 if (err) {
993freeout: t4_free_sge_resources(adap);
994 return err;
995 }
996
997 for_each_port(adap, i) {
998 struct net_device *dev = adap->port[i];
999 struct port_info *pi = netdev_priv(dev);
1000 struct sge_eth_rxq *q = &s->ethrxq[pi->first_qset];
1001 struct sge_eth_txq *t = &s->ethtxq[pi->first_qset];
1002
1003 for (j = 0; j < pi->nqsets; j++, q++) {
1004 if (msi_idx > 0)
1005 msi_idx++;
1006 err = t4_sge_alloc_rxq(adap, &q->rspq, false, dev,
1007 msi_idx, &q->fl,
1008 t4_ethrx_handler);
1009 if (err)
1010 goto freeout;
1011 q->rspq.idx = j;
1012 memset(&q->stats, 0, sizeof(q->stats));
1013 }
1014 for (j = 0; j < pi->nqsets; j++, t++) {
1015 err = t4_sge_alloc_eth_txq(adap, t, dev,
1016 netdev_get_tx_queue(dev, j),
1017 s->fw_evtq.cntxt_id);
1018 if (err)
1019 goto freeout;
1020 }
1021 }
1022
1023 j = s->ofldqsets / adap->params.nports; /* ofld queues per channel */
1024 for_each_ofldrxq(s, i) {
1025 struct sge_ofld_rxq *q = &s->ofldrxq[i];
1026 struct net_device *dev = adap->port[i / j];
1027
1028 if (msi_idx > 0)
1029 msi_idx++;
1030 err = t4_sge_alloc_rxq(adap, &q->rspq, false, dev, msi_idx,
1031 &q->fl, uldrx_handler);
1032 if (err)
1033 goto freeout;
1034 memset(&q->stats, 0, sizeof(q->stats));
1035 s->ofld_rxq[i] = q->rspq.abs_id;
1036 err = t4_sge_alloc_ofld_txq(adap, &s->ofldtxq[i], dev,
1037 s->fw_evtq.cntxt_id);
1038 if (err)
1039 goto freeout;
1040 }
1041
1042 for_each_rdmarxq(s, i) {
1043 struct sge_ofld_rxq *q = &s->rdmarxq[i];
1044
1045 if (msi_idx > 0)
1046 msi_idx++;
1047 err = t4_sge_alloc_rxq(adap, &q->rspq, false, adap->port[i],
1048 msi_idx, &q->fl, uldrx_handler);
1049 if (err)
1050 goto freeout;
1051 memset(&q->stats, 0, sizeof(q->stats));
1052 s->rdma_rxq[i] = q->rspq.abs_id;
1053 }
1054
1055 for_each_port(adap, i) {
1056 /*
1057 * Note that ->rdmarxq[i].rspq.cntxt_id below is 0 if we don't
1058 * have RDMA queues, and that's the right value.
1059 */
1060 err = t4_sge_alloc_ctrl_txq(adap, &s->ctrlq[i], adap->port[i],
1061 s->fw_evtq.cntxt_id,
1062 s->rdmarxq[i].rspq.cntxt_id);
1063 if (err)
1064 goto freeout;
1065 }
1066
1067 t4_write_reg(adap, MPS_TRC_RSS_CONTROL,
1068 RSSCONTROL(netdev2pinfo(adap->port[0])->tx_chan) |
1069 QUEUENUMBER(s->ethrxq[0].rspq.abs_id));
1070 return 0;
1071}
1072
b8ff05a9
DM		 1073/*
1074 * Allocate a chunk of memory using kmalloc or, if that fails, vmalloc.
1075 * The allocated memory is cleared.
1076 */
1077void *t4_alloc_mem(size_t size)
1078{
8be04b93 1079 void *p = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
b8ff05a9
DM		 1080
1081 if (!p)
89bf67f1 1082 p = vzalloc(size);
b8ff05a9
DM		 1083 return p;
1084}
1085
1086/*
1087 * Free memory allocated through alloc_mem().
1088 */
31b9c19b 1089static void t4_free_mem(void *addr)
b8ff05a9
DM		 1090{
1091 if (is_vmalloc_addr(addr))
1092 vfree(addr);
1093 else
1094 kfree(addr);
1095}
1096
f2b7e78d
VP		 1097/* Send a Work Request to write the filter at a specified index. We construct
1098 * a Firmware Filter Work Request to have the work done and put the indicated
1099 * filter into "pending" mode which will prevent any further actions against
1100 * it till we get a reply from the firmware on the completion status of the
1101 * request.
1102 */
1103static int set_filter_wr(struct adapter *adapter, int fidx)
1104{
1105 struct filter_entry *f = &adapter->tids.ftid_tab[fidx];
1106 struct sk_buff *skb;
1107 struct fw_filter_wr *fwr;
1108 unsigned int ftid;
1109
1110 /* If the new filter requires loopback Destination MAC and/or VLAN
1111 * rewriting then we need to allocate a Layer 2 Table (L2T) entry for
1112 * the filter.
1113 */
1114 if (f->fs.newdmac || f->fs.newvlan) {
1115 /* allocate L2T entry for new filter */
1116 f->l2t = t4_l2t_alloc_switching(adapter->l2t);
1117 if (f->l2t == NULL)
1118 return -EAGAIN;
1119 if (t4_l2t_set_switching(adapter, f->l2t, f->fs.vlan,
1120 f->fs.eport, f->fs.dmac)) {
1121 cxgb4_l2t_release(f->l2t);
1122 f->l2t = NULL;
1123 return -ENOMEM;
1124 }
1125 }
1126
1127 ftid = adapter->tids.ftid_base + fidx;
1128
1129 skb = alloc_skb(sizeof(*fwr), GFP_KERNEL | __GFP_NOFAIL);
1130 fwr = (struct fw_filter_wr *)__skb_put(skb, sizeof(*fwr));
1131 memset(fwr, 0, sizeof(*fwr));
1132
1133 /* It would be nice to put most of the following in t4_hw.c but most
1134 * of the work is translating the cxgbtool ch_filter_specification
1135 * into the Work Request and the definition of that structure is
1136 * currently in cxgbtool.h which isn't appropriate to pull into the
1137 * common code. We may eventually try to come up with a more neutral
1138 * filter specification structure but for now it's easiest to simply
1139 * put this fairly direct code in line ...
1140 */
1141 fwr->op_pkd = htonl(FW_WR_OP(FW_FILTER_WR));
1142 fwr->len16_pkd = htonl(FW_WR_LEN16(sizeof(*fwr)/16));
1143 fwr->tid_to_iq =
1144 htonl(V_FW_FILTER_WR_TID(ftid) |
1145 V_FW_FILTER_WR_RQTYPE(f->fs.type) |
1146 V_FW_FILTER_WR_NOREPLY(0) |
1147 V_FW_FILTER_WR_IQ(f->fs.iq));
1148 fwr->del_filter_to_l2tix =
1149 htonl(V_FW_FILTER_WR_RPTTID(f->fs.rpttid) |
1150 V_FW_FILTER_WR_DROP(f->fs.action == FILTER_DROP) |
1151 V_FW_FILTER_WR_DIRSTEER(f->fs.dirsteer) |
1152 V_FW_FILTER_WR_MASKHASH(f->fs.maskhash) |
1153 V_FW_FILTER_WR_DIRSTEERHASH(f->fs.dirsteerhash) |
1154 V_FW_FILTER_WR_LPBK(f->fs.action == FILTER_SWITCH) |
1155 V_FW_FILTER_WR_DMAC(f->fs.newdmac) |
1156 V_FW_FILTER_WR_SMAC(f->fs.newsmac) |
1157 V_FW_FILTER_WR_INSVLAN(f->fs.newvlan == VLAN_INSERT ||
1158 f->fs.newvlan == VLAN_REWRITE) |
1159 V_FW_FILTER_WR_RMVLAN(f->fs.newvlan == VLAN_REMOVE ||
1160 f->fs.newvlan == VLAN_REWRITE) |
1161 V_FW_FILTER_WR_HITCNTS(f->fs.hitcnts) |
1162 V_FW_FILTER_WR_TXCHAN(f->fs.eport) |
1163 V_FW_FILTER_WR_PRIO(f->fs.prio) |
1164 V_FW_FILTER_WR_L2TIX(f->l2t ? f->l2t->idx : 0));
1165 fwr->ethtype = htons(f->fs.val.ethtype);
1166 fwr->ethtypem = htons(f->fs.mask.ethtype);
1167 fwr->frag_to_ovlan_vldm =
1168 (V_FW_FILTER_WR_FRAG(f->fs.val.frag) |
1169 V_FW_FILTER_WR_FRAGM(f->fs.mask.frag) |
1170 V_FW_FILTER_WR_IVLAN_VLD(f->fs.val.ivlan_vld) |
1171 V_FW_FILTER_WR_OVLAN_VLD(f->fs.val.ovlan_vld) |
1172 V_FW_FILTER_WR_IVLAN_VLDM(f->fs.mask.ivlan_vld) |
1173 V_FW_FILTER_WR_OVLAN_VLDM(f->fs.mask.ovlan_vld));
1174 fwr->smac_sel = 0;
1175 fwr->rx_chan_rx_rpl_iq =
1176 htons(V_FW_FILTER_WR_RX_CHAN(0) |
1177 V_FW_FILTER_WR_RX_RPL_IQ(adapter->sge.fw_evtq.abs_id));
1178 fwr->maci_to_matchtypem =
1179 htonl(V_FW_FILTER_WR_MACI(f->fs.val.macidx) |
1180 V_FW_FILTER_WR_MACIM(f->fs.mask.macidx) |
1181 V_FW_FILTER_WR_FCOE(f->fs.val.fcoe) |
1182 V_FW_FILTER_WR_FCOEM(f->fs.mask.fcoe) |
1183 V_FW_FILTER_WR_PORT(f->fs.val.iport) |
1184 V_FW_FILTER_WR_PORTM(f->fs.mask.iport) |
1185 V_FW_FILTER_WR_MATCHTYPE(f->fs.val.matchtype) |
1186 V_FW_FILTER_WR_MATCHTYPEM(f->fs.mask.matchtype));
1187 fwr->ptcl = f->fs.val.proto;
1188 fwr->ptclm = f->fs.mask.proto;
1189 fwr->ttyp = f->fs.val.tos;
1190 fwr->ttypm = f->fs.mask.tos;
1191 fwr->ivlan = htons(f->fs.val.ivlan);
1192 fwr->ivlanm = htons(f->fs.mask.ivlan);
1193 fwr->ovlan = htons(f->fs.val.ovlan);
1194 fwr->ovlanm = htons(f->fs.mask.ovlan);
1195 memcpy(fwr->lip, f->fs.val.lip, sizeof(fwr->lip));
1196 memcpy(fwr->lipm, f->fs.mask.lip, sizeof(fwr->lipm));
1197 memcpy(fwr->fip, f->fs.val.fip, sizeof(fwr->fip));
1198 memcpy(fwr->fipm, f->fs.mask.fip, sizeof(fwr->fipm));
1199 fwr->lp = htons(f->fs.val.lport);
1200 fwr->lpm = htons(f->fs.mask.lport);
1201 fwr->fp = htons(f->fs.val.fport);
1202 fwr->fpm = htons(f->fs.mask.fport);
1203 if (f->fs.newsmac)
1204 memcpy(fwr->sma, f->fs.smac, sizeof(fwr->sma));
1205
1206 /* Mark the filter as "pending" and ship off the Filter Work Request.
1207 * When we get the Work Request Reply we'll clear the pending status.
1208 */
1209 f->pending = 1;
1210 set_wr_txq(skb, CPL_PRIORITY_CONTROL, f->fs.val.iport & 0x3);
1211 t4_ofld_send(adapter, skb);
1212 return 0;
1213}
1214
1215/* Delete the filter at a specified index.
1216 */
1217static int del_filter_wr(struct adapter *adapter, int fidx)
1218{
1219 struct filter_entry *f = &adapter->tids.ftid_tab[fidx];
1220 struct sk_buff *skb;
1221 struct fw_filter_wr *fwr;
1222 unsigned int len, ftid;
1223
1224 len = sizeof(*fwr);
1225 ftid = adapter->tids.ftid_base + fidx;
1226
1227 skb = alloc_skb(len, GFP_KERNEL | __GFP_NOFAIL);
1228 fwr = (struct fw_filter_wr *)__skb_put(skb, len);
1229 t4_mk_filtdelwr(ftid, fwr, adapter->sge.fw_evtq.abs_id);
1230
1231 /* Mark the filter as "pending" and ship off the Filter Work Request.
1232 * When we get the Work Request Reply we'll clear the pending status.
1233 */
1234 f->pending = 1;
1235 t4_mgmt_tx(adapter, skb);
1236 return 0;
1237}
1238
b8ff05a9
DM		 1239static inline int is_offload(const struct adapter *adap)
1240{
1241 return adap->params.offload;
1242}
1243
1244/*
1245 * Implementation of ethtool operations.
1246 */
1247
1248static u32 get_msglevel(struct net_device *dev)
1249{
1250 return netdev2adap(dev)->msg_enable;
1251}
1252
1253static void set_msglevel(struct net_device *dev, u32 val)
1254{
1255 netdev2adap(dev)->msg_enable = val;
1256}
1257
1258static char stats_strings[][ETH_GSTRING_LEN] = {
1259 "TxOctetsOK ",
1260 "TxFramesOK ",
1261 "TxBroadcastFrames ",
1262 "TxMulticastFrames ",
1263 "TxUnicastFrames ",
1264 "TxErrorFrames ",
1265
1266 "TxFrames64 ",
1267 "TxFrames65To127 ",
1268 "TxFrames128To255 ",
1269 "TxFrames256To511 ",
1270 "TxFrames512To1023 ",
1271 "TxFrames1024To1518 ",
1272 "TxFrames1519ToMax ",
1273
1274 "TxFramesDropped ",
1275 "TxPauseFrames ",
1276 "TxPPP0Frames ",
1277 "TxPPP1Frames ",
1278 "TxPPP2Frames ",
1279 "TxPPP3Frames ",
1280 "TxPPP4Frames ",
1281 "TxPPP5Frames ",
1282 "TxPPP6Frames ",
1283 "TxPPP7Frames ",
1284
1285 "RxOctetsOK ",
1286 "RxFramesOK ",
1287 "RxBroadcastFrames ",
1288 "RxMulticastFrames ",
1289 "RxUnicastFrames ",
1290
1291 "RxFramesTooLong ",
1292 "RxJabberErrors ",
1293 "RxFCSErrors ",
1294 "RxLengthErrors ",
1295 "RxSymbolErrors ",
1296 "RxRuntFrames ",
1297
1298 "RxFrames64 ",
1299 "RxFrames65To127 ",
1300 "RxFrames128To255 ",
1301 "RxFrames256To511 ",
1302 "RxFrames512To1023 ",
1303 "RxFrames1024To1518 ",
1304 "RxFrames1519ToMax ",
1305
1306 "RxPauseFrames ",
1307 "RxPPP0Frames ",
1308 "RxPPP1Frames ",
1309 "RxPPP2Frames ",
1310 "RxPPP3Frames ",
1311 "RxPPP4Frames ",
1312 "RxPPP5Frames ",
1313 "RxPPP6Frames ",
1314 "RxPPP7Frames ",
1315
1316 "RxBG0FramesDropped ",
1317 "RxBG1FramesDropped ",
1318 "RxBG2FramesDropped ",
1319 "RxBG3FramesDropped ",
1320 "RxBG0FramesTrunc ",
1321 "RxBG1FramesTrunc ",
1322 "RxBG2FramesTrunc ",
1323 "RxBG3FramesTrunc ",
1324
1325 "TSO ",
1326 "TxCsumOffload ",
1327 "RxCsumGood ",
1328 "VLANextractions ",
1329 "VLANinsertions ",
4a6346d4
DM		 1330 "GROpackets ",
1331 "GROmerged ",
22adfe0a
SR		 1332 "WriteCoalSuccess ",
1333 "WriteCoalFail ",
b8ff05a9
DM		 1334};
1335
1336static int get_sset_count(struct net_device *dev, int sset)
1337{
1338 switch (sset) {
1339 case ETH_SS_STATS:
1340 return ARRAY_SIZE(stats_strings);
1341 default:
1342 return -EOPNOTSUPP;
1343 }
1344}
1345
1346#define T4_REGMAP_SIZE (160 * 1024)
251f9e88 1347#define T5_REGMAP_SIZE (332 * 1024)
b8ff05a9
DM		 1348
1349static int get_regs_len(struct net_device *dev)
1350{
251f9e88 1351 struct adapter *adap = netdev2adap(dev);
d14807dd 1352 if (is_t4(adap->params.chip))
251f9e88
SR		 1353 return T4_REGMAP_SIZE;
1354 else
1355 return T5_REGMAP_SIZE;
b8ff05a9
DM		 1356}
1357
1358static int get_eeprom_len(struct net_device *dev)
1359{
1360 return EEPROMSIZE;
1361}
1362
1363static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1364{
1365 struct adapter *adapter = netdev2adap(dev);
1366
23020ab3
RJ		 1367 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
1368 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
1369 strlcpy(info->bus_info, pci_name(adapter->pdev),
1370 sizeof(info->bus_info));
b8ff05a9 1371
84b40501 1372 if (adapter->params.fw_vers)
b8ff05a9
DM		 1373 snprintf(info->fw_version, sizeof(info->fw_version),
1374 "%u.%u.%u.%u, TP %u.%u.%u.%u",
1375 FW_HDR_FW_VER_MAJOR_GET(adapter->params.fw_vers),
1376 FW_HDR_FW_VER_MINOR_GET(adapter->params.fw_vers),
1377 FW_HDR_FW_VER_MICRO_GET(adapter->params.fw_vers),
1378 FW_HDR_FW_VER_BUILD_GET(adapter->params.fw_vers),
1379 FW_HDR_FW_VER_MAJOR_GET(adapter->params.tp_vers),
1380 FW_HDR_FW_VER_MINOR_GET(adapter->params.tp_vers),
1381 FW_HDR_FW_VER_MICRO_GET(adapter->params.tp_vers),
1382 FW_HDR_FW_VER_BUILD_GET(adapter->params.tp_vers));
1383}
1384
1385static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
1386{
1387 if (stringset == ETH_SS_STATS)
1388 memcpy(data, stats_strings, sizeof(stats_strings));
1389}
1390
1391/*
1392 * port stats maintained per queue of the port. They should be in the same
1393 * order as in stats_strings above.
1394 */
1395struct queue_port_stats {
1396 u64 tso;
1397 u64 tx_csum;
1398 u64 rx_csum;
1399 u64 vlan_ex;
1400 u64 vlan_ins;
4a6346d4
DM		 1401 u64 gro_pkts;
1402 u64 gro_merged;
b8ff05a9
DM		 1403};
1404
1405static void collect_sge_port_stats(const struct adapter *adap,
1406 const struct port_info *p, struct queue_port_stats *s)
1407{
1408 int i;
1409 const struct sge_eth_txq *tx = &adap->sge.ethtxq[p->first_qset];
1410 const struct sge_eth_rxq *rx = &adap->sge.ethrxq[p->first_qset];
1411
1412 memset(s, 0, sizeof(*s));
1413 for (i = 0; i < p->nqsets; i++, rx++, tx++) {
1414 s->tso += tx->tso;
1415 s->tx_csum += tx->tx_cso;
1416 s->rx_csum += rx->stats.rx_cso;
1417 s->vlan_ex += rx->stats.vlan_ex;
1418 s->vlan_ins += tx->vlan_ins;
4a6346d4
DM		 1419 s->gro_pkts += rx->stats.lro_pkts;
1420 s->gro_merged += rx->stats.lro_merged;
b8ff05a9
DM		 1421 }
1422}
1423
1424static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
1425 u64 *data)
1426{
1427 struct port_info *pi = netdev_priv(dev);
1428 struct adapter *adapter = pi->adapter;
22adfe0a 1429 u32 val1, val2;
b8ff05a9
DM		 1430
1431 t4_get_port_stats(adapter, pi->tx_chan, (struct port_stats *)data);
1432
1433 data += sizeof(struct port_stats) / sizeof(u64);
1434 collect_sge_port_stats(adapter, pi, (struct queue_port_stats *)data);
22adfe0a 1435 data += sizeof(struct queue_port_stats) / sizeof(u64);
d14807dd 1436 if (!is_t4(adapter->params.chip)) {
22adfe0a
SR		 1437 t4_write_reg(adapter, SGE_STAT_CFG, STATSOURCE_T5(7));
1438 val1 = t4_read_reg(adapter, SGE_STAT_TOTAL);
1439 val2 = t4_read_reg(adapter, SGE_STAT_MATCH);
1440 *data = val1 - val2;
1441 data++;
1442 *data = val2;
1443 data++;
1444 } else {
1445 memset(data, 0, 2 * sizeof(u64));
1446 *data += 2;
1447 }
b8ff05a9
DM		 1448}
1449
1450/*
1451 * Return a version number to identify the type of adapter. The scheme is:
1452 * - bits 0..9: chip version
1453 * - bits 10..15: chip revision
835bb606 1454 * - bits 16..23: register dump version
b8ff05a9
DM		 1455 */
1456static inline unsigned int mk_adap_vers(const struct adapter *ap)
1457{
d14807dd
HS		 1458 return CHELSIO_CHIP_VERSION(ap->params.chip) |
1459 (CHELSIO_CHIP_RELEASE(ap->params.chip) << 10) | (1 << 16);
b8ff05a9
DM		 1460}
1461
1462static void reg_block_dump(struct adapter *ap, void *buf, unsigned int start,
1463 unsigned int end)
1464{
1465 u32 *p = buf + start;
1466
1467 for ( ; start <= end; start += sizeof(u32))
1468 *p++ = t4_read_reg(ap, start);
1469}
1470
1471static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
1472 void *buf)
1473{
251f9e88 1474 static const unsigned int t4_reg_ranges[] = {
b8ff05a9
DM		 1475 0x1008, 0x1108,
1476 0x1180, 0x11b4,
1477 0x11fc, 0x123c,
1478 0x1300, 0x173c,
1479 0x1800, 0x18fc,
1480 0x3000, 0x30d8,
1481 0x30e0, 0x5924,
1482 0x5960, 0x59d4,
1483 0x5a00, 0x5af8,
1484 0x6000, 0x6098,
1485 0x6100, 0x6150,
1486 0x6200, 0x6208,
1487 0x6240, 0x6248,
1488 0x6280, 0x6338,
1489 0x6370, 0x638c,
1490 0x6400, 0x643c,
1491 0x6500, 0x6524,
1492 0x6a00, 0x6a38,
1493 0x6a60, 0x6a78,
1494 0x6b00, 0x6b84,
1495 0x6bf0, 0x6c84,
1496 0x6cf0, 0x6d84,
1497 0x6df0, 0x6e84,
1498 0x6ef0, 0x6f84,
1499 0x6ff0, 0x7084,
1500 0x70f0, 0x7184,
1501 0x71f0, 0x7284,
1502 0x72f0, 0x7384,
1503 0x73f0, 0x7450,
1504 0x7500, 0x7530,
1505 0x7600, 0x761c,
1506 0x7680, 0x76cc,
1507 0x7700, 0x7798,
1508 0x77c0, 0x77fc,
1509 0x7900, 0x79fc,
1510 0x7b00, 0x7c38,
1511 0x7d00, 0x7efc,
1512 0x8dc0, 0x8e1c,
1513 0x8e30, 0x8e78,
1514 0x8ea0, 0x8f6c,
1515 0x8fc0, 0x9074,
1516 0x90fc, 0x90fc,
1517 0x9400, 0x9458,
1518 0x9600, 0x96bc,
1519 0x9800, 0x9808,
1520 0x9820, 0x983c,
1521 0x9850, 0x9864,
1522 0x9c00, 0x9c6c,
1523 0x9c80, 0x9cec,
1524 0x9d00, 0x9d6c,
1525 0x9d80, 0x9dec,
1526 0x9e00, 0x9e6c,
1527 0x9e80, 0x9eec,
1528 0x9f00, 0x9f6c,
1529 0x9f80, 0x9fec,
1530 0xd004, 0xd03c,
1531 0xdfc0, 0xdfe0,
1532 0xe000, 0xea7c,
1533 0xf000, 0x11190,
835bb606
DM		 1534 0x19040, 0x1906c,
1535 0x19078, 0x19080,
1536 0x1908c, 0x19124,
b8ff05a9
DM		 1537 0x19150, 0x191b0,
1538 0x191d0, 0x191e8,
1539 0x19238, 0x1924c,
1540 0x193f8, 0x19474,
1541 0x19490, 0x194f8,
1542 0x19800, 0x19f30,
1543 0x1a000, 0x1a06c,
1544 0x1a0b0, 0x1a120,
1545 0x1a128, 0x1a138,
1546 0x1a190, 0x1a1c4,
1547 0x1a1fc, 0x1a1fc,
1548 0x1e040, 0x1e04c,
835bb606 1549 0x1e284, 0x1e28c,
b8ff05a9
DM		 1550 0x1e2c0, 0x1e2c0,
1551 0x1e2e0, 0x1e2e0,
1552 0x1e300, 0x1e384,
1553 0x1e3c0, 0x1e3c8,
1554 0x1e440, 0x1e44c,
835bb606 1555 0x1e684, 0x1e68c,
b8ff05a9
DM		 1556 0x1e6c0, 0x1e6c0,
1557 0x1e6e0, 0x1e6e0,
1558 0x1e700, 0x1e784,
1559 0x1e7c0, 0x1e7c8,
1560 0x1e840, 0x1e84c,
835bb606 1561 0x1ea84, 0x1ea8c,
b8ff05a9
DM		 1562 0x1eac0, 0x1eac0,
1563 0x1eae0, 0x1eae0,
1564 0x1eb00, 0x1eb84,
1565 0x1ebc0, 0x1ebc8,
1566 0x1ec40, 0x1ec4c,
835bb606 1567 0x1ee84, 0x1ee8c,
b8ff05a9
DM		 1568 0x1eec0, 0x1eec0,
1569 0x1eee0, 0x1eee0,
1570 0x1ef00, 0x1ef84,
1571 0x1efc0, 0x1efc8,
1572 0x1f040, 0x1f04c,
835bb606 1573 0x1f284, 0x1f28c,
b8ff05a9
DM		 1574 0x1f2c0, 0x1f2c0,
1575 0x1f2e0, 0x1f2e0,
1576 0x1f300, 0x1f384,
1577 0x1f3c0, 0x1f3c8,
1578 0x1f440, 0x1f44c,
835bb606 1579 0x1f684, 0x1f68c,
b8ff05a9
DM		 1580 0x1f6c0, 0x1f6c0,
1581 0x1f6e0, 0x1f6e0,
1582 0x1f700, 0x1f784,
1583 0x1f7c0, 0x1f7c8,
1584 0x1f840, 0x1f84c,
835bb606 1585 0x1fa84, 0x1fa8c,
b8ff05a9
DM		 1586 0x1fac0, 0x1fac0,
1587 0x1fae0, 0x1fae0,
1588 0x1fb00, 0x1fb84,
1589 0x1fbc0, 0x1fbc8,
1590 0x1fc40, 0x1fc4c,
835bb606 1591 0x1fe84, 0x1fe8c,
b8ff05a9
DM		 1592 0x1fec0, 0x1fec0,
1593 0x1fee0, 0x1fee0,
1594 0x1ff00, 0x1ff84,
1595 0x1ffc0, 0x1ffc8,
1596 0x20000, 0x2002c,
1597 0x20100, 0x2013c,
1598 0x20190, 0x201c8,
1599 0x20200, 0x20318,
1600 0x20400, 0x20528,
1601 0x20540, 0x20614,
1602 0x21000, 0x21040,
1603 0x2104c, 0x21060,
1604 0x210c0, 0x210ec,
1605 0x21200, 0x21268,
1606 0x21270, 0x21284,
1607 0x212fc, 0x21388,
1608 0x21400, 0x21404,
1609 0x21500, 0x21518,
1610 0x2152c, 0x2153c,
1611 0x21550, 0x21554,
1612 0x21600, 0x21600,
1613 0x21608, 0x21628,
1614 0x21630, 0x2163c,
1615 0x21700, 0x2171c,
1616 0x21780, 0x2178c,
1617 0x21800, 0x21c38,
1618 0x21c80, 0x21d7c,
1619 0x21e00, 0x21e04,
1620 0x22000, 0x2202c,
1621 0x22100, 0x2213c,
1622 0x22190, 0x221c8,
1623 0x22200, 0x22318,
1624 0x22400, 0x22528,
1625 0x22540, 0x22614,
1626 0x23000, 0x23040,
1627 0x2304c, 0x23060,
1628 0x230c0, 0x230ec,
1629 0x23200, 0x23268,
1630 0x23270, 0x23284,
1631 0x232fc, 0x23388,
1632 0x23400, 0x23404,
1633 0x23500, 0x23518,
1634 0x2352c, 0x2353c,
1635 0x23550, 0x23554,
1636 0x23600, 0x23600,
1637 0x23608, 0x23628,
1638 0x23630, 0x2363c,
1639 0x23700, 0x2371c,
1640 0x23780, 0x2378c,
1641 0x23800, 0x23c38,
1642 0x23c80, 0x23d7c,
1643 0x23e00, 0x23e04,
1644 0x24000, 0x2402c,
1645 0x24100, 0x2413c,
1646 0x24190, 0x241c8,
1647 0x24200, 0x24318,
1648 0x24400, 0x24528,
1649 0x24540, 0x24614,
1650 0x25000, 0x25040,
1651 0x2504c, 0x25060,
1652 0x250c0, 0x250ec,
1653 0x25200, 0x25268,
1654 0x25270, 0x25284,
1655 0x252fc, 0x25388,
1656 0x25400, 0x25404,
1657 0x25500, 0x25518,
1658 0x2552c, 0x2553c,
1659 0x25550, 0x25554,
1660 0x25600, 0x25600,
1661 0x25608, 0x25628,
1662 0x25630, 0x2563c,
1663 0x25700, 0x2571c,
1664 0x25780, 0x2578c,
1665 0x25800, 0x25c38,
1666 0x25c80, 0x25d7c,
1667 0x25e00, 0x25e04,
1668 0x26000, 0x2602c,
1669 0x26100, 0x2613c,
1670 0x26190, 0x261c8,
1671 0x26200, 0x26318,
1672 0x26400, 0x26528,
1673 0x26540, 0x26614,
1674 0x27000, 0x27040,
1675 0x2704c, 0x27060,
1676 0x270c0, 0x270ec,
1677 0x27200, 0x27268,
1678 0x27270, 0x27284,
1679 0x272fc, 0x27388,
1680 0x27400, 0x27404,
1681 0x27500, 0x27518,
1682 0x2752c, 0x2753c,
1683 0x27550, 0x27554,
1684 0x27600, 0x27600,
1685 0x27608, 0x27628,
1686 0x27630, 0x2763c,
1687 0x27700, 0x2771c,
1688 0x27780, 0x2778c,
1689 0x27800, 0x27c38,
1690 0x27c80, 0x27d7c,
1691 0x27e00, 0x27e04
1692 };
1693
251f9e88
SR		 1694 static const unsigned int t5_reg_ranges[] = {
1695 0x1008, 0x1148,
1696 0x1180, 0x11b4,
1697 0x11fc, 0x123c,
1698 0x1280, 0x173c,
1699 0x1800, 0x18fc,
1700 0x3000, 0x3028,
1701 0x3060, 0x30d8,
1702 0x30e0, 0x30fc,
1703 0x3140, 0x357c,
1704 0x35a8, 0x35cc,
1705 0x35ec, 0x35ec,
1706 0x3600, 0x5624,
1707 0x56cc, 0x575c,
1708 0x580c, 0x5814,
1709 0x5890, 0x58bc,
1710 0x5940, 0x59dc,
1711 0x59fc, 0x5a18,
1712 0x5a60, 0x5a9c,
1713 0x5b9c, 0x5bfc,
1714 0x6000, 0x6040,
1715 0x6058, 0x614c,
1716 0x7700, 0x7798,
1717 0x77c0, 0x78fc,
1718 0x7b00, 0x7c54,
1719 0x7d00, 0x7efc,
1720 0x8dc0, 0x8de0,
1721 0x8df8, 0x8e84,
1722 0x8ea0, 0x8f84,
1723 0x8fc0, 0x90f8,
1724 0x9400, 0x9470,
1725 0x9600, 0x96f4,
1726 0x9800, 0x9808,
1727 0x9820, 0x983c,
1728 0x9850, 0x9864,
1729 0x9c00, 0x9c6c,
1730 0x9c80, 0x9cec,
1731 0x9d00, 0x9d6c,
1732 0x9d80, 0x9dec,
1733 0x9e00, 0x9e6c,
1734 0x9e80, 0x9eec,
1735 0x9f00, 0x9f6c,
1736 0x9f80, 0xa020,
1737 0xd004, 0xd03c,
1738 0xdfc0, 0xdfe0,
1739 0xe000, 0x11088,
1740 0x1109c, 0x1117c,
1741 0x11190, 0x11204,
1742 0x19040, 0x1906c,
1743 0x19078, 0x19080,
1744 0x1908c, 0x19124,
1745 0x19150, 0x191b0,
1746 0x191d0, 0x191e8,
1747 0x19238, 0x19290,
1748 0x193f8, 0x19474,
1749 0x19490, 0x194cc,
1750 0x194f0, 0x194f8,
1751 0x19c00, 0x19c60,
1752 0x19c94, 0x19e10,
1753 0x19e50, 0x19f34,
1754 0x19f40, 0x19f50,
1755 0x19f90, 0x19fe4,
1756 0x1a000, 0x1a06c,
1757 0x1a0b0, 0x1a120,
1758 0x1a128, 0x1a138,
1759 0x1a190, 0x1a1c4,
1760 0x1a1fc, 0x1a1fc,
1761 0x1e008, 0x1e00c,
1762 0x1e040, 0x1e04c,
1763 0x1e284, 0x1e290,
1764 0x1e2c0, 0x1e2c0,
1765 0x1e2e0, 0x1e2e0,
1766 0x1e300, 0x1e384,
1767 0x1e3c0, 0x1e3c8,
1768 0x1e408, 0x1e40c,
1769 0x1e440, 0x1e44c,
1770 0x1e684, 0x1e690,
1771 0x1e6c0, 0x1e6c0,
1772 0x1e6e0, 0x1e6e0,
1773 0x1e700, 0x1e784,
1774 0x1e7c0, 0x1e7c8,
1775 0x1e808, 0x1e80c,
1776 0x1e840, 0x1e84c,
1777 0x1ea84, 0x1ea90,
1778 0x1eac0, 0x1eac0,
1779 0x1eae0, 0x1eae0,
1780 0x1eb00, 0x1eb84,
1781 0x1ebc0, 0x1ebc8,
1782 0x1ec08, 0x1ec0c,
1783 0x1ec40, 0x1ec4c,
1784 0x1ee84, 0x1ee90,
1785 0x1eec0, 0x1eec0,
1786 0x1eee0, 0x1eee0,
1787 0x1ef00, 0x1ef84,
1788 0x1efc0, 0x1efc8,
1789 0x1f008, 0x1f00c,
1790 0x1f040, 0x1f04c,
1791 0x1f284, 0x1f290,
1792 0x1f2c0, 0x1f2c0,
1793 0x1f2e0, 0x1f2e0,
1794 0x1f300, 0x1f384,
1795 0x1f3c0, 0x1f3c8,
1796 0x1f408, 0x1f40c,
1797 0x1f440, 0x1f44c,
1798 0x1f684, 0x1f690,
1799 0x1f6c0, 0x1f6c0,
1800 0x1f6e0, 0x1f6e0,
1801 0x1f700, 0x1f784,
1802 0x1f7c0, 0x1f7c8,
1803 0x1f808, 0x1f80c,
1804 0x1f840, 0x1f84c,
1805 0x1fa84, 0x1fa90,
1806 0x1fac0, 0x1fac0,
1807 0x1fae0, 0x1fae0,
1808 0x1fb00, 0x1fb84,
1809 0x1fbc0, 0x1fbc8,
1810 0x1fc08, 0x1fc0c,
1811 0x1fc40, 0x1fc4c,
1812 0x1fe84, 0x1fe90,
1813 0x1fec0, 0x1fec0,
1814 0x1fee0, 0x1fee0,
1815 0x1ff00, 0x1ff84,
1816 0x1ffc0, 0x1ffc8,
1817 0x30000, 0x30030,
1818 0x30100, 0x30144,
1819 0x30190, 0x301d0,
1820 0x30200, 0x30318,
1821 0x30400, 0x3052c,
1822 0x30540, 0x3061c,
1823 0x30800, 0x30834,
1824 0x308c0, 0x30908,
1825 0x30910, 0x309ac,
1826 0x30a00, 0x30a04,
1827 0x30a0c, 0x30a2c,
1828 0x30a44, 0x30a50,
1829 0x30a74, 0x30c24,
1830 0x30d08, 0x30d14,
1831 0x30d1c, 0x30d20,
1832 0x30d3c, 0x30d50,
1833 0x31200, 0x3120c,
1834 0x31220, 0x31220,
1835 0x31240, 0x31240,
1836 0x31600, 0x31600,
1837 0x31608, 0x3160c,
1838 0x31a00, 0x31a1c,
1839 0x31e04, 0x31e20,
1840 0x31e38, 0x31e3c,
1841 0x31e80, 0x31e80,
1842 0x31e88, 0x31ea8,
1843 0x31eb0, 0x31eb4,
1844 0x31ec8, 0x31ed4,
1845 0x31fb8, 0x32004,
1846 0x32208, 0x3223c,
1847 0x32600, 0x32630,
1848 0x32a00, 0x32abc,
1849 0x32b00, 0x32b70,
1850 0x33000, 0x33048,
1851 0x33060, 0x3309c,
1852 0x330f0, 0x33148,
1853 0x33160, 0x3319c,
1854 0x331f0, 0x332e4,
1855 0x332f8, 0x333e4,
1856 0x333f8, 0x33448,
1857 0x33460, 0x3349c,
1858 0x334f0, 0x33548,
1859 0x33560, 0x3359c,
1860 0x335f0, 0x336e4,
1861 0x336f8, 0x337e4,
1862 0x337f8, 0x337fc,
1863 0x33814, 0x33814,
1864 0x3382c, 0x3382c,
1865 0x33880, 0x3388c,
1866 0x338e8, 0x338ec,
1867 0x33900, 0x33948,
1868 0x33960, 0x3399c,
1869 0x339f0, 0x33ae4,
1870 0x33af8, 0x33b10,
1871 0x33b28, 0x33b28,
1872 0x33b3c, 0x33b50,
1873 0x33bf0, 0x33c10,
1874 0x33c28, 0x33c28,
1875 0x33c3c, 0x33c50,
1876 0x33cf0, 0x33cfc,
1877 0x34000, 0x34030,
1878 0x34100, 0x34144,
1879 0x34190, 0x341d0,
1880 0x34200, 0x34318,
1881 0x34400, 0x3452c,
1882 0x34540, 0x3461c,
1883 0x34800, 0x34834,
1884 0x348c0, 0x34908,
1885 0x34910, 0x349ac,
1886 0x34a00, 0x34a04,
1887 0x34a0c, 0x34a2c,
1888 0x34a44, 0x34a50,
1889 0x34a74, 0x34c24,
1890 0x34d08, 0x34d14,
1891 0x34d1c, 0x34d20,
1892 0x34d3c, 0x34d50,
1893 0x35200, 0x3520c,
1894 0x35220, 0x35220,
1895 0x35240, 0x35240,
1896 0x35600, 0x35600,
1897 0x35608, 0x3560c,
1898 0x35a00, 0x35a1c,
1899 0x35e04, 0x35e20,
1900 0x35e38, 0x35e3c,
1901 0x35e80, 0x35e80,
1902 0x35e88, 0x35ea8,
1903 0x35eb0, 0x35eb4,
1904 0x35ec8, 0x35ed4,
1905 0x35fb8, 0x36004,
1906 0x36208, 0x3623c,
1907 0x36600, 0x36630,
1908 0x36a00, 0x36abc,
1909 0x36b00, 0x36b70,
1910 0x37000, 0x37048,
1911 0x37060, 0x3709c,
1912 0x370f0, 0x37148,
1913 0x37160, 0x3719c,
1914 0x371f0, 0x372e4,
1915 0x372f8, 0x373e4,
1916 0x373f8, 0x37448,
1917 0x37460, 0x3749c,
1918 0x374f0, 0x37548,
1919 0x37560, 0x3759c,
1920 0x375f0, 0x376e4,
1921 0x376f8, 0x377e4,
1922 0x377f8, 0x377fc,
1923 0x37814, 0x37814,
1924 0x3782c, 0x3782c,
1925 0x37880, 0x3788c,
1926 0x378e8, 0x378ec,
1927 0x37900, 0x37948,
1928 0x37960, 0x3799c,
1929 0x379f0, 0x37ae4,
1930 0x37af8, 0x37b10,
1931 0x37b28, 0x37b28,
1932 0x37b3c, 0x37b50,
1933 0x37bf0, 0x37c10,
1934 0x37c28, 0x37c28,
1935 0x37c3c, 0x37c50,
1936 0x37cf0, 0x37cfc,
1937 0x38000, 0x38030,
1938 0x38100, 0x38144,
1939 0x38190, 0x381d0,
1940 0x38200, 0x38318,
1941 0x38400, 0x3852c,
1942 0x38540, 0x3861c,
1943 0x38800, 0x38834,
1944 0x388c0, 0x38908,
1945 0x38910, 0x389ac,
1946 0x38a00, 0x38a04,
1947 0x38a0c, 0x38a2c,
1948 0x38a44, 0x38a50,
1949 0x38a74, 0x38c24,
1950 0x38d08, 0x38d14,
1951 0x38d1c, 0x38d20,
1952 0x38d3c, 0x38d50,
1953 0x39200, 0x3920c,
1954 0x39220, 0x39220,
1955 0x39240, 0x39240,
1956 0x39600, 0x39600,
1957 0x39608, 0x3960c,
1958 0x39a00, 0x39a1c,
1959 0x39e04, 0x39e20,
1960 0x39e38, 0x39e3c,
1961 0x39e80, 0x39e80,
1962 0x39e88, 0x39ea8,
1963 0x39eb0, 0x39eb4,
1964 0x39ec8, 0x39ed4,
1965 0x39fb8, 0x3a004,
1966 0x3a208, 0x3a23c,
1967 0x3a600, 0x3a630,
1968 0x3aa00, 0x3aabc,
1969 0x3ab00, 0x3ab70,
1970 0x3b000, 0x3b048,
1971 0x3b060, 0x3b09c,
1972 0x3b0f0, 0x3b148,
1973 0x3b160, 0x3b19c,
1974 0x3b1f0, 0x3b2e4,
1975 0x3b2f8, 0x3b3e4,
1976 0x3b3f8, 0x3b448,
1977 0x3b460, 0x3b49c,
1978 0x3b4f0, 0x3b548,
1979 0x3b560, 0x3b59c,
1980 0x3b5f0, 0x3b6e4,
1981 0x3b6f8, 0x3b7e4,
1982 0x3b7f8, 0x3b7fc,
1983 0x3b814, 0x3b814,
1984 0x3b82c, 0x3b82c,
1985 0x3b880, 0x3b88c,
1986 0x3b8e8, 0x3b8ec,
1987 0x3b900, 0x3b948,
1988 0x3b960, 0x3b99c,
1989 0x3b9f0, 0x3bae4,
1990 0x3baf8, 0x3bb10,
1991 0x3bb28, 0x3bb28,
1992 0x3bb3c, 0x3bb50,
1993 0x3bbf0, 0x3bc10,
1994 0x3bc28, 0x3bc28,
1995 0x3bc3c, 0x3bc50,
1996 0x3bcf0, 0x3bcfc,
1997 0x3c000, 0x3c030,
1998 0x3c100, 0x3c144,
1999 0x3c190, 0x3c1d0,
2000 0x3c200, 0x3c318,
2001 0x3c400, 0x3c52c,
2002 0x3c540, 0x3c61c,
2003 0x3c800, 0x3c834,
2004 0x3c8c0, 0x3c908,
2005 0x3c910, 0x3c9ac,
2006 0x3ca00, 0x3ca04,
2007 0x3ca0c, 0x3ca2c,
2008 0x3ca44, 0x3ca50,
2009 0x3ca74, 0x3cc24,
2010 0x3cd08, 0x3cd14,
2011 0x3cd1c, 0x3cd20,
2012 0x3cd3c, 0x3cd50,
2013 0x3d200, 0x3d20c,
2014 0x3d220, 0x3d220,
2015 0x3d240, 0x3d240,
2016 0x3d600, 0x3d600,
2017 0x3d608, 0x3d60c,
2018 0x3da00, 0x3da1c,
2019 0x3de04, 0x3de20,
2020 0x3de38, 0x3de3c,
2021 0x3de80, 0x3de80,
2022 0x3de88, 0x3dea8,
2023 0x3deb0, 0x3deb4,
2024 0x3dec8, 0x3ded4,
2025 0x3dfb8, 0x3e004,
2026 0x3e208, 0x3e23c,
2027 0x3e600, 0x3e630,
2028 0x3ea00, 0x3eabc,
2029 0x3eb00, 0x3eb70,
2030 0x3f000, 0x3f048,
2031 0x3f060, 0x3f09c,
2032 0x3f0f0, 0x3f148,
2033 0x3f160, 0x3f19c,
2034 0x3f1f0, 0x3f2e4,
2035 0x3f2f8, 0x3f3e4,
2036 0x3f3f8, 0x3f448,
2037 0x3f460, 0x3f49c,
2038 0x3f4f0, 0x3f548,
2039 0x3f560, 0x3f59c,
2040 0x3f5f0, 0x3f6e4,
2041 0x3f6f8, 0x3f7e4,
2042 0x3f7f8, 0x3f7fc,
2043 0x3f814, 0x3f814,
2044 0x3f82c, 0x3f82c,
2045 0x3f880, 0x3f88c,
2046 0x3f8e8, 0x3f8ec,
2047 0x3f900, 0x3f948,
2048 0x3f960, 0x3f99c,
2049 0x3f9f0, 0x3fae4,
2050 0x3faf8, 0x3fb10,
2051 0x3fb28, 0x3fb28,
2052 0x3fb3c, 0x3fb50,
2053 0x3fbf0, 0x3fc10,
2054 0x3fc28, 0x3fc28,
2055 0x3fc3c, 0x3fc50,
2056 0x3fcf0, 0x3fcfc,
2057 0x40000, 0x4000c,
2058 0x40040, 0x40068,
2059 0x40080, 0x40144,
2060 0x40180, 0x4018c,
2061 0x40200, 0x40298,
2062 0x402ac, 0x4033c,
2063 0x403f8, 0x403fc,
2064 0x41300, 0x413c4,
2065 0x41400, 0x4141c,
2066 0x41480, 0x414d0,
2067 0x44000, 0x44078,
2068 0x440c0, 0x44278,
2069 0x442c0, 0x44478,
2070 0x444c0, 0x44678,
2071 0x446c0, 0x44878,
2072 0x448c0, 0x449fc,
2073 0x45000, 0x45068,
2074 0x45080, 0x45084,
2075 0x450a0, 0x450b0,
2076 0x45200, 0x45268,
2077 0x45280, 0x45284,
2078 0x452a0, 0x452b0,
2079 0x460c0, 0x460e4,
2080 0x47000, 0x4708c,
2081 0x47200, 0x47250,
2082 0x47400, 0x47420,
2083 0x47600, 0x47618,
2084 0x47800, 0x47814,
2085 0x48000, 0x4800c,
2086 0x48040, 0x48068,
2087 0x48080, 0x48144,
2088 0x48180, 0x4818c,
2089 0x48200, 0x48298,
2090 0x482ac, 0x4833c,
2091 0x483f8, 0x483fc,
2092 0x49300, 0x493c4,
2093 0x49400, 0x4941c,
2094 0x49480, 0x494d0,
2095 0x4c000, 0x4c078,
2096 0x4c0c0, 0x4c278,
2097 0x4c2c0, 0x4c478,
2098 0x4c4c0, 0x4c678,
2099 0x4c6c0, 0x4c878,
2100 0x4c8c0, 0x4c9fc,
2101 0x4d000, 0x4d068,
2102 0x4d080, 0x4d084,
2103 0x4d0a0, 0x4d0b0,
2104 0x4d200, 0x4d268,
2105 0x4d280, 0x4d284,
2106 0x4d2a0, 0x4d2b0,
2107 0x4e0c0, 0x4e0e4,
2108 0x4f000, 0x4f08c,
2109 0x4f200, 0x4f250,
2110 0x4f400, 0x4f420,
2111 0x4f600, 0x4f618,
2112 0x4f800, 0x4f814,
2113 0x50000, 0x500cc,
2114 0x50400, 0x50400,
2115 0x50800, 0x508cc,
2116 0x50c00, 0x50c00,
2117 0x51000, 0x5101c,
2118 0x51300, 0x51308,
2119 };
2120
b8ff05a9
DM		 2121 int i;
2122 struct adapter *ap = netdev2adap(dev);
251f9e88
SR		 2123 static const unsigned int *reg_ranges;
2124 int arr_size = 0, buf_size = 0;
2125
d14807dd 2126 if (is_t4(ap->params.chip)) {
251f9e88
SR		 2127 reg_ranges = &t4_reg_ranges[0];
2128 arr_size = ARRAY_SIZE(t4_reg_ranges);
2129 buf_size = T4_REGMAP_SIZE;
2130 } else {
2131 reg_ranges = &t5_reg_ranges[0];
2132 arr_size = ARRAY_SIZE(t5_reg_ranges);
2133 buf_size = T5_REGMAP_SIZE;
2134 }
b8ff05a9
DM		 2135
2136 regs->version = mk_adap_vers(ap);
2137
251f9e88
SR		 2138 memset(buf, 0, buf_size);
2139 for (i = 0; i < arr_size; i += 2)
b8ff05a9
DM		 2140 reg_block_dump(ap, buf, reg_ranges[i], reg_ranges[i + 1]);
2141}
2142
2143static int restart_autoneg(struct net_device *dev)
2144{
2145 struct port_info *p = netdev_priv(dev);
2146
2147 if (!netif_running(dev))
2148 return -EAGAIN;
2149 if (p->link_cfg.autoneg != AUTONEG_ENABLE)
2150 return -EINVAL;
060e0c75 2151 t4_restart_aneg(p->adapter, p->adapter->fn, p->tx_chan);
b8ff05a9
DM		 2152 return 0;
2153}
2154
c5e06360
DM		 2155static int identify_port(struct net_device *dev,
2156 enum ethtool_phys_id_state state)
b8ff05a9 2157{
c5e06360 2158 unsigned int val;
060e0c75
DM		 2159 struct adapter *adap = netdev2adap(dev);
2160
c5e06360
DM		 2161 if (state == ETHTOOL_ID_ACTIVE)
2162 val = 0xffff;
2163 else if (state == ETHTOOL_ID_INACTIVE)
2164 val = 0;
2165 else
2166 return -EINVAL;
b8ff05a9 2167
c5e06360 2168 return t4_identify_port(adap, adap->fn, netdev2pinfo(dev)->viid, val);
b8ff05a9
DM		 2169}
2170
2171static unsigned int from_fw_linkcaps(unsigned int type, unsigned int caps)
2172{
2173 unsigned int v = 0;
2174
a0881cab
DM		 2175 if (type == FW_PORT_TYPE_BT_SGMII || type == FW_PORT_TYPE_BT_XFI ||
2176 type == FW_PORT_TYPE_BT_XAUI) {
b8ff05a9
DM		 2177 v |= SUPPORTED_TP;
2178 if (caps & FW_PORT_CAP_SPEED_100M)
2179 v |= SUPPORTED_100baseT_Full;
2180 if (caps & FW_PORT_CAP_SPEED_1G)
2181 v |= SUPPORTED_1000baseT_Full;
2182 if (caps & FW_PORT_CAP_SPEED_10G)
2183 v |= SUPPORTED_10000baseT_Full;
2184 } else if (type == FW_PORT_TYPE_KX4 || type == FW_PORT_TYPE_KX) {
2185 v |= SUPPORTED_Backplane;
2186 if (caps & FW_PORT_CAP_SPEED_1G)
2187 v |= SUPPORTED_1000baseKX_Full;
2188 if (caps & FW_PORT_CAP_SPEED_10G)
2189 v |= SUPPORTED_10000baseKX4_Full;
2190 } else if (type == FW_PORT_TYPE_KR)
2191 v |= SUPPORTED_Backplane | SUPPORTED_10000baseKR_Full;
a0881cab 2192 else if (type == FW_PORT_TYPE_BP_AP)
7d5e77aa
DM		 2193 v |= SUPPORTED_Backplane | SUPPORTED_10000baseR_FEC |
2194 SUPPORTED_10000baseKR_Full | SUPPORTED_1000baseKX_Full;
2195 else if (type == FW_PORT_TYPE_BP4_AP)
2196 v |= SUPPORTED_Backplane | SUPPORTED_10000baseR_FEC |
2197 SUPPORTED_10000baseKR_Full | SUPPORTED_1000baseKX_Full |
2198 SUPPORTED_10000baseKX4_Full;
a0881cab
DM		 2199 else if (type == FW_PORT_TYPE_FIBER_XFI ||
2200 type == FW_PORT_TYPE_FIBER_XAUI || type == FW_PORT_TYPE_SFP)
b8ff05a9
DM		 2201 v |= SUPPORTED_FIBRE;
2202
2203 if (caps & FW_PORT_CAP_ANEG)
2204 v |= SUPPORTED_Autoneg;
2205 return v;
2206}
2207
2208static unsigned int to_fw_linkcaps(unsigned int caps)
2209{
2210 unsigned int v = 0;
2211
2212 if (caps & ADVERTISED_100baseT_Full)
2213 v |= FW_PORT_CAP_SPEED_100M;
2214 if (caps & ADVERTISED_1000baseT_Full)
2215 v |= FW_PORT_CAP_SPEED_1G;
2216 if (caps & ADVERTISED_10000baseT_Full)
2217 v |= FW_PORT_CAP_SPEED_10G;
2218 return v;
2219}
2220
2221static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2222{
2223 const struct port_info *p = netdev_priv(dev);
2224
2225 if (p->port_type == FW_PORT_TYPE_BT_SGMII ||
a0881cab 2226 p->port_type == FW_PORT_TYPE_BT_XFI ||
b8ff05a9
DM		 2227 p->port_type == FW_PORT_TYPE_BT_XAUI)
2228 cmd->port = PORT_TP;
a0881cab
DM		 2229 else if (p->port_type == FW_PORT_TYPE_FIBER_XFI ||
2230 p->port_type == FW_PORT_TYPE_FIBER_XAUI)
b8ff05a9 2231 cmd->port = PORT_FIBRE;
a0881cab
DM		 2232 else if (p->port_type == FW_PORT_TYPE_SFP) {
2233 if (p->mod_type == FW_PORT_MOD_TYPE_TWINAX_PASSIVE ||
2234 p->mod_type == FW_PORT_MOD_TYPE_TWINAX_ACTIVE)
2235 cmd->port = PORT_DA;
2236 else
2237 cmd->port = PORT_FIBRE;
2238 } else
b8ff05a9
DM		 2239 cmd->port = PORT_OTHER;
2240
2241 if (p->mdio_addr >= 0) {
2242 cmd->phy_address = p->mdio_addr;
2243 cmd->transceiver = XCVR_EXTERNAL;
2244 cmd->mdio_support = p->port_type == FW_PORT_TYPE_BT_SGMII ?
2245 MDIO_SUPPORTS_C22 : MDIO_SUPPORTS_C45;
2246 } else {
2247 cmd->phy_address = 0; /* not really, but no better option */
2248 cmd->transceiver = XCVR_INTERNAL;
2249 cmd->mdio_support = 0;
2250 }
2251
2252 cmd->supported = from_fw_linkcaps(p->port_type, p->link_cfg.supported);
2253 cmd->advertising = from_fw_linkcaps(p->port_type,
2254 p->link_cfg.advertising);
70739497
DD		 2255 ethtool_cmd_speed_set(cmd,
2256 netif_carrier_ok(dev) ? p->link_cfg.speed : 0);
b8ff05a9
DM		 2257 cmd->duplex = DUPLEX_FULL;
2258 cmd->autoneg = p->link_cfg.autoneg;
2259 cmd->maxtxpkt = 0;
2260 cmd->maxrxpkt = 0;
2261 return 0;
2262}
2263
2264static unsigned int speed_to_caps(int speed)
2265{
2266 if (speed == SPEED_100)
2267 return FW_PORT_CAP_SPEED_100M;
2268 if (speed == SPEED_1000)
2269 return FW_PORT_CAP_SPEED_1G;
2270 if (speed == SPEED_10000)
2271 return FW_PORT_CAP_SPEED_10G;
2272 return 0;
2273}
2274
2275static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
2276{
2277 unsigned int cap;
2278 struct port_info *p = netdev_priv(dev);
2279 struct link_config *lc = &p->link_cfg;
25db0338 2280 u32 speed = ethtool_cmd_speed(cmd);
b8ff05a9
DM		 2281
2282 if (cmd->duplex != DUPLEX_FULL) /* only full-duplex supported */
2283 return -EINVAL;
2284
2285 if (!(lc->supported & FW_PORT_CAP_ANEG)) {
2286 /*
2287 * PHY offers a single speed. See if that's what's
2288 * being requested.
2289 */
2290 if (cmd->autoneg == AUTONEG_DISABLE &&
25db0338
DD		 2291 (lc->supported & speed_to_caps(speed)))
2292 return 0;
b8ff05a9
DM		 2293 return -EINVAL;
2294 }
2295
2296 if (cmd->autoneg == AUTONEG_DISABLE) {
25db0338 2297 cap = speed_to_caps(speed);
b8ff05a9 2298
25db0338
DD		 2299 if (!(lc->supported & cap) || (speed == SPEED_1000) ||
2300 (speed == SPEED_10000))
b8ff05a9
DM		 2301 return -EINVAL;
2302 lc->requested_speed = cap;
2303 lc->advertising = 0;
2304 } else {
2305 cap = to_fw_linkcaps(cmd->advertising);
2306 if (!(lc->supported & cap))
2307 return -EINVAL;
2308 lc->requested_speed = 0;
2309 lc->advertising = cap | FW_PORT_CAP_ANEG;
2310 }
2311 lc->autoneg = cmd->autoneg;
2312
2313 if (netif_running(dev))
060e0c75
DM		 2314 return t4_link_start(p->adapter, p->adapter->fn, p->tx_chan,
2315 lc);
b8ff05a9
DM		 2316 return 0;
2317}
2318
2319static void get_pauseparam(struct net_device *dev,
2320 struct ethtool_pauseparam *epause)
2321{
2322 struct port_info *p = netdev_priv(dev);
2323
2324 epause->autoneg = (p->link_cfg.requested_fc & PAUSE_AUTONEG) != 0;
2325 epause->rx_pause = (p->link_cfg.fc & PAUSE_RX) != 0;
2326 epause->tx_pause = (p->link_cfg.fc & PAUSE_TX) != 0;
2327}
2328
2329static int set_pauseparam(struct net_device *dev,
2330 struct ethtool_pauseparam *epause)
2331{
2332 struct port_info *p = netdev_priv(dev);
2333 struct link_config *lc = &p->link_cfg;
2334
2335 if (epause->autoneg == AUTONEG_DISABLE)
2336 lc->requested_fc = 0;
2337 else if (lc->supported & FW_PORT_CAP_ANEG)
2338 lc->requested_fc = PAUSE_AUTONEG;
2339 else
2340 return -EINVAL;
2341
2342 if (epause->rx_pause)
2343 lc->requested_fc |= PAUSE_RX;
2344 if (epause->tx_pause)
2345 lc->requested_fc |= PAUSE_TX;
2346 if (netif_running(dev))
060e0c75
DM		 2347 return t4_link_start(p->adapter, p->adapter->fn, p->tx_chan,
2348 lc);
b8ff05a9
DM		 2349 return 0;
2350}
2351
b8ff05a9
DM		 2352static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
2353{
2354 const struct port_info *pi = netdev_priv(dev);
2355 const struct sge *s = &pi->adapter->sge;
2356
2357 e->rx_max_pending = MAX_RX_BUFFERS;
2358 e->rx_mini_max_pending = MAX_RSPQ_ENTRIES;
2359 e->rx_jumbo_max_pending = 0;
2360 e->tx_max_pending = MAX_TXQ_ENTRIES;
2361
2362 e->rx_pending = s->ethrxq[pi->first_qset].fl.size - 8;
2363 e->rx_mini_pending = s->ethrxq[pi->first_qset].rspq.size;
2364 e->rx_jumbo_pending = 0;
2365 e->tx_pending = s->ethtxq[pi->first_qset].q.size;
2366}
2367
2368static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
2369{
2370 int i;
2371 const struct port_info *pi = netdev_priv(dev);
2372 struct adapter *adapter = pi->adapter;
2373 struct sge *s = &adapter->sge;
2374
2375 if (e->rx_pending > MAX_RX_BUFFERS || e->rx_jumbo_pending ||
2376 e->tx_pending > MAX_TXQ_ENTRIES ||
2377 e->rx_mini_pending > MAX_RSPQ_ENTRIES ||
2378 e->rx_mini_pending < MIN_RSPQ_ENTRIES ||
2379 e->rx_pending < MIN_FL_ENTRIES || e->tx_pending < MIN_TXQ_ENTRIES)
2380 return -EINVAL;
2381
2382 if (adapter->flags & FULL_INIT_DONE)
2383 return -EBUSY;
2384
2385 for (i = 0; i < pi->nqsets; ++i) {
2386 s->ethtxq[pi->first_qset + i].q.size = e->tx_pending;
2387 s->ethrxq[pi->first_qset + i].fl.size = e->rx_pending + 8;
2388 s->ethrxq[pi->first_qset + i].rspq.size = e->rx_mini_pending;
2389 }
2390 return 0;
2391}
2392
2393static int closest_timer(const struct sge *s, int time)
2394{
2395 int i, delta, match = 0, min_delta = INT_MAX;
2396
2397 for (i = 0; i < ARRAY_SIZE(s->timer_val); i++) {
2398 delta = time - s->timer_val[i];
2399 if (delta < 0)
2400 delta = -delta;
2401 if (delta < min_delta) {
2402 min_delta = delta;
2403 match = i;
2404 }
2405 }
2406 return match;
2407}
2408
2409static int closest_thres(const struct sge *s, int thres)
2410{
2411 int i, delta, match = 0, min_delta = INT_MAX;
2412
2413 for (i = 0; i < ARRAY_SIZE(s->counter_val); i++) {
2414 delta = thres - s->counter_val[i];
2415 if (delta < 0)
2416 delta = -delta;
2417 if (delta < min_delta) {
2418 min_delta = delta;
2419 match = i;
2420 }
2421 }
2422 return match;
2423}
2424
2425/*
2426 * Return a queue's interrupt hold-off time in us. 0 means no timer.
2427 */
2428static unsigned int qtimer_val(const struct adapter *adap,
2429 const struct sge_rspq *q)
2430{
2431 unsigned int idx = q->intr_params >> 1;
2432
2433 return idx < SGE_NTIMERS ? adap->sge.timer_val[idx] : 0;
2434}
2435
2436/**
2437 * set_rxq_intr_params - set a queue's interrupt holdoff parameters
2438 * @adap: the adapter
2439 * @q: the Rx queue
2440 * @us: the hold-off time in us, or 0 to disable timer
2441 * @cnt: the hold-off packet count, or 0 to disable counter
2442 *
2443 * Sets an Rx queue's interrupt hold-off time and packet count. At least
2444 * one of the two needs to be enabled for the queue to generate interrupts.
2445 */
2446static int set_rxq_intr_params(struct adapter *adap, struct sge_rspq *q,
2447 unsigned int us, unsigned int cnt)
2448{
2449 if ((us | cnt) == 0)
2450 cnt = 1;
2451
2452 if (cnt) {
2453 int err;
2454 u32 v, new_idx;
2455
2456 new_idx = closest_thres(&adap->sge, cnt);
2457 if (q->desc && q->pktcnt_idx != new_idx) {
2458 /* the queue has already been created, update it */
2459 v = FW_PARAMS_MNEM(FW_PARAMS_MNEM_DMAQ) |
2460 FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DMAQ_IQ_INTCNTTHRESH) |
2461 FW_PARAMS_PARAM_YZ(q->cntxt_id);
060e0c75
DM		 2462 err = t4_set_params(adap, adap->fn, adap->fn, 0, 1, &v,
2463 &new_idx);
b8ff05a9
DM		 2464 if (err)
2465 return err;
2466 }
2467 q->pktcnt_idx = new_idx;
2468 }
2469
2470 us = us == 0 ? 6 : closest_timer(&adap->sge, us);
2471 q->intr_params = QINTR_TIMER_IDX(us) | (cnt > 0 ? QINTR_CNT_EN : 0);
2472 return 0;
2473}
2474
2475static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
2476{
2477 const struct port_info *pi = netdev_priv(dev);
2478 struct adapter *adap = pi->adapter;
d4fc9dc2
TLSC		 2479 struct sge_rspq *q;
2480 int i;
2481 int r = 0;
2482
2483 for (i = pi->first_qset; i < pi->first_qset + pi->nqsets; i++) {
2484 q = &adap->sge.ethrxq[i].rspq;
2485 r = set_rxq_intr_params(adap, q, c->rx_coalesce_usecs,
2486 c->rx_max_coalesced_frames);
2487 if (r) {
2488 dev_err(&dev->dev, "failed to set coalesce %d\n", r);
2489 break;
2490 }
2491 }
2492 return r;
b8ff05a9
DM		 2493}
2494
2495static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
2496{
2497 const struct port_info *pi = netdev_priv(dev);
2498 const struct adapter *adap = pi->adapter;
2499 const struct sge_rspq *rq = &adap->sge.ethrxq[pi->first_qset].rspq;
2500
2501 c->rx_coalesce_usecs = qtimer_val(adap, rq);
2502 c->rx_max_coalesced_frames = (rq->intr_params & QINTR_CNT_EN) ?
2503 adap->sge.counter_val[rq->pktcnt_idx] : 0;
2504 return 0;
2505}
2506
1478b3ee
DM		 2507/**
2508 * eeprom_ptov - translate a physical EEPROM address to virtual
2509 * @phys_addr: the physical EEPROM address
2510 * @fn: the PCI function number
2511 * @sz: size of function-specific area
2512 *
2513 * Translate a physical EEPROM address to virtual. The first 1K is
2514 * accessed through virtual addresses starting at 31K, the rest is
2515 * accessed through virtual addresses starting at 0.
2516 *
2517 * The mapping is as follows:
2518 * [0..1K) -> [31K..32K)
2519 * [1K..1K+A) -> [31K-A..31K)
2520 * [1K+A..ES) -> [0..ES-A-1K)
2521 *
2522 * where A = @fn * @sz, and ES = EEPROM size.
b8ff05a9 2523 */
1478b3ee 2524static int eeprom_ptov(unsigned int phys_addr, unsigned int fn, unsigned int sz)
b8ff05a9 2525{
1478b3ee 2526 fn *= sz;
b8ff05a9
DM		 2527 if (phys_addr < 1024)
2528 return phys_addr + (31 << 10);
1478b3ee
DM		 2529 if (phys_addr < 1024 + fn)
2530 return 31744 - fn + phys_addr - 1024;
b8ff05a9 2531 if (phys_addr < EEPROMSIZE)
1478b3ee 2532 return phys_addr - 1024 - fn;
b8ff05a9
DM		 2533 return -EINVAL;
2534}
2535
2536/*
2537 * The next two routines implement eeprom read/write from physical addresses.
b8ff05a9
DM		 2538 */
2539static int eeprom_rd_phys(struct adapter *adap, unsigned int phys_addr, u32 *v)
2540{
1478b3ee 2541 int vaddr = eeprom_ptov(phys_addr, adap->fn, EEPROMPFSIZE);
b8ff05a9
DM		 2542
2543 if (vaddr >= 0)
2544 vaddr = pci_read_vpd(adap->pdev, vaddr, sizeof(u32), v);
2545 return vaddr < 0 ? vaddr : 0;
2546}
2547
2548static int eeprom_wr_phys(struct adapter *adap, unsigned int phys_addr, u32 v)
2549{
1478b3ee 2550 int vaddr = eeprom_ptov(phys_addr, adap->fn, EEPROMPFSIZE);
b8ff05a9
DM		 2551
2552 if (vaddr >= 0)
2553 vaddr = pci_write_vpd(adap->pdev, vaddr, sizeof(u32), &v);
2554 return vaddr < 0 ? vaddr : 0;
2555}
2556
2557#define EEPROM_MAGIC 0x38E2F10C
2558
2559static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
2560 u8 *data)
2561{
2562 int i, err = 0;
2563 struct adapter *adapter = netdev2adap(dev);
2564
2565 u8 *buf = kmalloc(EEPROMSIZE, GFP_KERNEL);
2566 if (!buf)
2567 return -ENOMEM;
2568
2569 e->magic = EEPROM_MAGIC;
2570 for (i = e->offset & ~3; !err && i < e->offset + e->len; i += 4)
2571 err = eeprom_rd_phys(adapter, i, (u32 *)&buf[i]);
2572
2573 if (!err)
2574 memcpy(data, buf + e->offset, e->len);
2575 kfree(buf);
2576 return err;
2577}
2578
2579static int set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
2580 u8 *data)
2581{
2582 u8 *buf;
2583 int err = 0;
2584 u32 aligned_offset, aligned_len, *p;
2585 struct adapter *adapter = netdev2adap(dev);
2586
2587 if (eeprom->magic != EEPROM_MAGIC)
2588 return -EINVAL;
2589
2590 aligned_offset = eeprom->offset & ~3;
2591 aligned_len = (eeprom->len + (eeprom->offset & 3) + 3) & ~3;
2592
1478b3ee
DM		 2593 if (adapter->fn > 0) {
2594 u32 start = 1024 + adapter->fn * EEPROMPFSIZE;
2595
2596 if (aligned_offset < start ||
2597 aligned_offset + aligned_len > start + EEPROMPFSIZE)
2598 return -EPERM;
2599 }
2600
b8ff05a9
DM		 2601 if (aligned_offset != eeprom->offset || aligned_len != eeprom->len) {
2602 /*
2603 * RMW possibly needed for first or last words.
2604 */
2605 buf = kmalloc(aligned_len, GFP_KERNEL);
2606 if (!buf)
2607 return -ENOMEM;
2608 err = eeprom_rd_phys(adapter, aligned_offset, (u32 *)buf);
2609 if (!err && aligned_len > 4)
2610 err = eeprom_rd_phys(adapter,
2611 aligned_offset + aligned_len - 4,
2612 (u32 *)&buf[aligned_len - 4]);
2613 if (err)
2614 goto out;
2615 memcpy(buf + (eeprom->offset & 3), data, eeprom->len);
2616 } else
2617 buf = data;
2618
2619 err = t4_seeprom_wp(adapter, false);
2620 if (err)
2621 goto out;
2622
2623 for (p = (u32 *)buf; !err && aligned_len; aligned_len -= 4, p++) {
2624 err = eeprom_wr_phys(adapter, aligned_offset, *p);
2625 aligned_offset += 4;
2626 }
2627
2628 if (!err)
2629 err = t4_seeprom_wp(adapter, true);
2630out:
2631 if (buf != data)
2632 kfree(buf);
2633 return err;
2634}
2635
2636static int set_flash(struct net_device *netdev, struct ethtool_flash *ef)
2637{
2638 int ret;
2639 const struct firmware *fw;
2640 struct adapter *adap = netdev2adap(netdev);
2641
2642 ef->data[sizeof(ef->data) - 1] = '\0';
2643 ret = request_firmware(&fw, ef->data, adap->pdev_dev);
2644 if (ret < 0)
2645 return ret;
2646
2647 ret = t4_load_fw(adap, fw->data, fw->size);
2648 release_firmware(fw);
2649 if (!ret)
2650 dev_info(adap->pdev_dev, "loaded firmware %s\n", ef->data);
2651 return ret;
2652}
2653
2654#define WOL_SUPPORTED (WAKE_BCAST | WAKE_MAGIC)
2655#define BCAST_CRC 0xa0ccc1a6
2656
2657static void get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2658{
2659 wol->supported = WAKE_BCAST | WAKE_MAGIC;
2660 wol->wolopts = netdev2adap(dev)->wol;
2661 memset(&wol->sopass, 0, sizeof(wol->sopass));
2662}
2663
2664static int set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2665{
2666 int err = 0;
2667 struct port_info *pi = netdev_priv(dev);
2668
2669 if (wol->wolopts & ~WOL_SUPPORTED)
2670 return -EINVAL;
2671 t4_wol_magic_enable(pi->adapter, pi->tx_chan,
2672 (wol->wolopts & WAKE_MAGIC) ? dev->dev_addr : NULL);
2673 if (wol->wolopts & WAKE_BCAST) {
2674 err = t4_wol_pat_enable(pi->adapter, pi->tx_chan, 0xfe, ~0ULL,
2675 ~0ULL, 0, false);
2676 if (!err)
2677 err = t4_wol_pat_enable(pi->adapter, pi->tx_chan, 1,
2678 ~6ULL, ~0ULL, BCAST_CRC, true);
2679 } else
2680 t4_wol_pat_enable(pi->adapter, pi->tx_chan, 0, 0, 0, 0, false);
2681 return err;
2682}
2683
c8f44aff 2684static int cxgb_set_features(struct net_device *dev, netdev_features_t features)
87b6cf51 2685{
2ed28baa 2686 const struct port_info *pi = netdev_priv(dev);
c8f44aff 2687 netdev_features_t changed = dev->features ^ features;
19ecae2c 2688 int err;
19ecae2c 2689
f646968f 2690 if (!(changed & NETIF_F_HW_VLAN_CTAG_RX))
2ed28baa 2691 return 0;
19ecae2c 2692
2ed28baa
MM		 2693 err = t4_set_rxmode(pi->adapter, pi->adapter->fn, pi->viid, -1,
2694 -1, -1, -1,
f646968f 2695 !!(features & NETIF_F_HW_VLAN_CTAG_RX), true);
2ed28baa 2696 if (unlikely(err))
f646968f 2697 dev->features = features ^ NETIF_F_HW_VLAN_CTAG_RX;
19ecae2c 2698 return err;
87b6cf51
DM		 2699}
2700
7850f63f 2701static u32 get_rss_table_size(struct net_device *dev)
671b0060
DM		 2702{
2703 const struct port_info *pi = netdev_priv(dev);
671b0060 2704
7850f63f
BH		 2705 return pi->rss_size;
2706}
2707
2708static int get_rss_table(struct net_device *dev, u32 *p)
2709{
2710 const struct port_info *pi = netdev_priv(dev);
2711 unsigned int n = pi->rss_size;
2712
671b0060 2713 while (n--)
7850f63f 2714 p[n] = pi->rss[n];
671b0060
DM		 2715 return 0;
2716}
2717
7850f63f 2718static int set_rss_table(struct net_device *dev, const u32 *p)
671b0060
DM		 2719{
2720 unsigned int i;
2721 struct port_info *pi = netdev_priv(dev);
2722
7850f63f
BH		 2723 for (i = 0; i < pi->rss_size; i++)
2724 pi->rss[i] = p[i];
671b0060
DM		 2725 if (pi->adapter->flags & FULL_INIT_DONE)
2726 return write_rss(pi, pi->rss);
2727 return 0;
2728}
2729
2730static int get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
815c7db5 2731 u32 *rules)
671b0060 2732{
f796564a
DM		 2733 const struct port_info *pi = netdev_priv(dev);
2734
671b0060 2735 switch (info->cmd) {
f796564a
DM		 2736 case ETHTOOL_GRXFH: {
2737 unsigned int v = pi->rss_mode;
2738
2739 info->data = 0;
2740 switch (info->flow_type) {
2741 case TCP_V4_FLOW:
2742 if (v & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN)
2743 info->data = RXH_IP_SRC | RXH_IP_DST |
2744 RXH_L4_B_0_1 | RXH_L4_B_2_3;
2745 else if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN)
2746 info->data = RXH_IP_SRC | RXH_IP_DST;
2747 break;
2748 case UDP_V4_FLOW:
2749 if ((v & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN) &&
2750 (v & FW_RSS_VI_CONFIG_CMD_UDPEN))
2751 info->data = RXH_IP_SRC | RXH_IP_DST |
2752 RXH_L4_B_0_1 | RXH_L4_B_2_3;
2753 else if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN)
2754 info->data = RXH_IP_SRC | RXH_IP_DST;
2755 break;
2756 case SCTP_V4_FLOW:
2757 case AH_ESP_V4_FLOW:
2758 case IPV4_FLOW:
2759 if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN)
2760 info->data = RXH_IP_SRC | RXH_IP_DST;
2761 break;
2762 case TCP_V6_FLOW:
2763 if (v & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN)
2764 info->data = RXH_IP_SRC | RXH_IP_DST |
2765 RXH_L4_B_0_1 | RXH_L4_B_2_3;
2766 else if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN)
2767 info->data = RXH_IP_SRC | RXH_IP_DST;
2768 break;
2769 case UDP_V6_FLOW:
2770 if ((v & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN) &&
2771 (v & FW_RSS_VI_CONFIG_CMD_UDPEN))
2772 info->data = RXH_IP_SRC | RXH_IP_DST |
2773 RXH_L4_B_0_1 | RXH_L4_B_2_3;
2774 else if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN)
2775 info->data = RXH_IP_SRC | RXH_IP_DST;
2776 break;
2777 case SCTP_V6_FLOW:
2778 case AH_ESP_V6_FLOW:
2779 case IPV6_FLOW:
2780 if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN)
2781 info->data = RXH_IP_SRC | RXH_IP_DST;
2782 break;
2783 }
2784 return 0;
2785 }
671b0060 2786 case ETHTOOL_GRXRINGS:
f796564a 2787 info->data = pi->nqsets;
671b0060
DM		 2788 return 0;
2789 }
2790 return -EOPNOTSUPP;
2791}
2792
9b07be4b 2793static const struct ethtool_ops cxgb_ethtool_ops = {
b8ff05a9
DM		 2794 .get_settings = get_settings,
2795 .set_settings = set_settings,
2796 .get_drvinfo = get_drvinfo,
2797 .get_msglevel = get_msglevel,
2798 .set_msglevel = set_msglevel,
2799 .get_ringparam = get_sge_param,
2800 .set_ringparam = set_sge_param,
2801 .get_coalesce = get_coalesce,
2802 .set_coalesce = set_coalesce,
2803 .get_eeprom_len = get_eeprom_len,
2804 .get_eeprom = get_eeprom,
2805 .set_eeprom = set_eeprom,
2806 .get_pauseparam = get_pauseparam,
2807 .set_pauseparam = set_pauseparam,
b8ff05a9
DM		 2808 .get_link = ethtool_op_get_link,
2809 .get_strings = get_strings,
c5e06360 2810 .set_phys_id = identify_port,
b8ff05a9
DM		 2811 .nway_reset = restart_autoneg,
2812 .get_sset_count = get_sset_count,
2813 .get_ethtool_stats = get_stats,
2814 .get_regs_len = get_regs_len,
2815 .get_regs = get_regs,
2816 .get_wol = get_wol,
2817 .set_wol = set_wol,
671b0060 2818 .get_rxnfc = get_rxnfc,
7850f63f 2819 .get_rxfh_indir_size = get_rss_table_size,
671b0060
DM		 2820 .get_rxfh_indir = get_rss_table,
2821 .set_rxfh_indir = set_rss_table,
b8ff05a9
DM		 2822 .flash_device = set_flash,
2823};
2824
2825/*
2826 * debugfs support
2827 */
b8ff05a9
DM		 2828static ssize_t mem_read(struct file *file, char __user *buf, size_t count,
2829 loff_t *ppos)
2830{
2831 loff_t pos = *ppos;
496ad9aa 2832 loff_t avail = file_inode(file)->i_size;
b8ff05a9
DM		 2833 unsigned int mem = (uintptr_t)file->private_data & 3;
2834 struct adapter *adap = file->private_data - mem;
2835
2836 if (pos < 0)
2837 return -EINVAL;
2838 if (pos >= avail)
2839 return 0;
2840 if (count > avail - pos)
2841 count = avail - pos;
2842
2843 while (count) {
2844 size_t len;
2845 int ret, ofst;
2846 __be32 data[16];
2847
19dd37ba
SR		 2848 if ((mem == MEM_MC) || (mem == MEM_MC1))
2849 ret = t4_mc_read(adap, mem % MEM_MC, pos, data, NULL);
b8ff05a9
DM		 2850 else
2851 ret = t4_edc_read(adap, mem, pos, data, NULL);
2852 if (ret)
2853 return ret;
2854
2855 ofst = pos % sizeof(data);
2856 len = min(count, sizeof(data) - ofst);
2857 if (copy_to_user(buf, (u8 *)data + ofst, len))
2858 return -EFAULT;
2859
2860 buf += len;
2861 pos += len;
2862 count -= len;
2863 }
2864 count = pos - *ppos;
2865 *ppos = pos;
2866 return count;
2867}
2868
2869static const struct file_operations mem_debugfs_fops = {
2870 .owner = THIS_MODULE,
234e3405 2871 .open = simple_open,
b8ff05a9 2872 .read = mem_read,
6038f373 2873 .llseek = default_llseek,
b8ff05a9
DM		 2874};
2875
91744948 2876static void add_debugfs_mem(struct adapter *adap, const char *name,
1dd06ae8 2877 unsigned int idx, unsigned int size_mb)
b8ff05a9
DM		 2878{
2879 struct dentry *de;
2880
2881 de = debugfs_create_file(name, S_IRUSR, adap->debugfs_root,
2882 (void *)adap + idx, &mem_debugfs_fops);
2883 if (de && de->d_inode)
2884 de->d_inode->i_size = size_mb << 20;
2885}
2886
91744948 2887static int setup_debugfs(struct adapter *adap)
b8ff05a9
DM		 2888{
2889 int i;
19dd37ba 2890 u32 size;
b8ff05a9
DM		 2891
2892 if (IS_ERR_OR_NULL(adap->debugfs_root))
2893 return -1;
2894
2895 i = t4_read_reg(adap, MA_TARGET_MEM_ENABLE);
19dd37ba
SR		 2896 if (i & EDRAM0_ENABLE) {
2897 size = t4_read_reg(adap, MA_EDRAM0_BAR);
2898 add_debugfs_mem(adap, "edc0", MEM_EDC0, EDRAM_SIZE_GET(size));
2899 }
2900 if (i & EDRAM1_ENABLE) {
2901 size = t4_read_reg(adap, MA_EDRAM1_BAR);
2902 add_debugfs_mem(adap, "edc1", MEM_EDC1, EDRAM_SIZE_GET(size));
2903 }
d14807dd 2904 if (is_t4(adap->params.chip)) {
19dd37ba
SR		 2905 size = t4_read_reg(adap, MA_EXT_MEMORY_BAR);
2906 if (i & EXT_MEM_ENABLE)
2907 add_debugfs_mem(adap, "mc", MEM_MC,
2908 EXT_MEM_SIZE_GET(size));
2909 } else {
2910 if (i & EXT_MEM_ENABLE) {
2911 size = t4_read_reg(adap, MA_EXT_MEMORY_BAR);
2912 add_debugfs_mem(adap, "mc0", MEM_MC0,
2913 EXT_MEM_SIZE_GET(size));
2914 }
2915 if (i & EXT_MEM1_ENABLE) {
2916 size = t4_read_reg(adap, MA_EXT_MEMORY1_BAR);
2917 add_debugfs_mem(adap, "mc1", MEM_MC1,
2918 EXT_MEM_SIZE_GET(size));
2919 }
2920 }
b8ff05a9
DM		 2921 if (adap->l2t)
2922 debugfs_create_file("l2t", S_IRUSR, adap->debugfs_root, adap,
2923 &t4_l2t_fops);
2924 return 0;
2925}
2926
2927/*
2928 * upper-layer driver support
2929 */
2930
2931/*
2932 * Allocate an active-open TID and set it to the supplied value.
2933 */
2934int cxgb4_alloc_atid(struct tid_info *t, void *data)
2935{
2936 int atid = -1;
2937
2938 spin_lock_bh(&t->atid_lock);
2939 if (t->afree) {
2940 union aopen_entry *p = t->afree;
2941
f2b7e78d 2942 atid = (p - t->atid_tab) + t->atid_base;
b8ff05a9
DM		 2943 t->afree = p->next;
2944 p->data = data;
2945 t->atids_in_use++;
2946 }
2947 spin_unlock_bh(&t->atid_lock);
2948 return atid;
2949}
2950EXPORT_SYMBOL(cxgb4_alloc_atid);
2951
2952/*
2953 * Release an active-open TID.
2954 */
2955void cxgb4_free_atid(struct tid_info *t, unsigned int atid)
2956{
f2b7e78d 2957 union aopen_entry *p = &t->atid_tab[atid - t->atid_base];
b8ff05a9
DM		 2958
2959 spin_lock_bh(&t->atid_lock);
2960 p->next = t->afree;
2961 t->afree = p;
2962 t->atids_in_use--;
2963 spin_unlock_bh(&t->atid_lock);
2964}
2965EXPORT_SYMBOL(cxgb4_free_atid);
2966
2967/*
2968 * Allocate a server TID and set it to the supplied value.
2969 */
2970int cxgb4_alloc_stid(struct tid_info *t, int family, void *data)
2971{
2972 int stid;
2973
2974 spin_lock_bh(&t->stid_lock);
2975 if (family == PF_INET) {
2976 stid = find_first_zero_bit(t->stid_bmap, t->nstids);
2977 if (stid < t->nstids)
2978 __set_bit(stid, t->stid_bmap);
2979 else
2980 stid = -1;
2981 } else {
2982 stid = bitmap_find_free_region(t->stid_bmap, t->nstids, 2);
2983 if (stid < 0)
2984 stid = -1;
2985 }
2986 if (stid >= 0) {
2987 t->stid_tab[stid].data = data;
2988 stid += t->stid_base;
15f63b74
KS		 2989 /* IPv6 requires max of 520 bits or 16 cells in TCAM
2990 * This is equivalent to 4 TIDs. With CLIP enabled it
2991 * needs 2 TIDs.
2992 */
2993 if (family == PF_INET)
2994 t->stids_in_use++;
2995 else
2996 t->stids_in_use += 4;
b8ff05a9
DM		 2997 }
2998 spin_unlock_bh(&t->stid_lock);
2999 return stid;
3000}
3001EXPORT_SYMBOL(cxgb4_alloc_stid);
3002
dca4faeb
VP		 3003/* Allocate a server filter TID and set it to the supplied value.
3004 */
3005int cxgb4_alloc_sftid(struct tid_info *t, int family, void *data)
3006{
3007 int stid;
3008
3009 spin_lock_bh(&t->stid_lock);
3010 if (family == PF_INET) {
3011 stid = find_next_zero_bit(t->stid_bmap,
3012 t->nstids + t->nsftids, t->nstids);
3013 if (stid < (t->nstids + t->nsftids))
3014 __set_bit(stid, t->stid_bmap);
3015 else
3016 stid = -1;
3017 } else {
3018 stid = -1;
3019 }
3020 if (stid >= 0) {
3021 t->stid_tab[stid].data = data;
470c60c4
KS		 3022 stid -= t->nstids;
3023 stid += t->sftid_base;
dca4faeb
VP		 3024 t->stids_in_use++;
3025 }
3026 spin_unlock_bh(&t->stid_lock);
3027 return stid;
3028}
3029EXPORT_SYMBOL(cxgb4_alloc_sftid);
3030
3031/* Release a server TID.
b8ff05a9
DM		 3032 */
3033void cxgb4_free_stid(struct tid_info *t, unsigned int stid, int family)
3034{
470c60c4
KS		 3035 /* Is it a server filter TID? */
3036 if (t->nsftids && (stid >= t->sftid_base)) {
3037 stid -= t->sftid_base;
3038 stid += t->nstids;
3039 } else {
3040 stid -= t->stid_base;
3041 }
3042
b8ff05a9
DM		 3043 spin_lock_bh(&t->stid_lock);
3044 if (family == PF_INET)
3045 __clear_bit(stid, t->stid_bmap);
3046 else
3047 bitmap_release_region(t->stid_bmap, stid, 2);
3048 t->stid_tab[stid].data = NULL;
15f63b74
KS		 3049 if (family == PF_INET)
3050 t->stids_in_use--;
3051 else
3052 t->stids_in_use -= 4;
b8ff05a9
DM		 3053 spin_unlock_bh(&t->stid_lock);
3054}
3055EXPORT_SYMBOL(cxgb4_free_stid);
3056
3057/*
3058 * Populate a TID_RELEASE WR. Caller must properly size the skb.
3059 */
3060static void mk_tid_release(struct sk_buff *skb, unsigned int chan,
3061 unsigned int tid)
3062{
3063 struct cpl_tid_release *req;
3064
3065 set_wr_txq(skb, CPL_PRIORITY_SETUP, chan);
3066 req = (struct cpl_tid_release *)__skb_put(skb, sizeof(*req));
3067 INIT_TP_WR(req, tid);
3068 OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_TID_RELEASE, tid));
3069}
3070
3071/*
3072 * Queue a TID release request and if necessary schedule a work queue to
3073 * process it.
3074 */
31b9c19b 3075static void cxgb4_queue_tid_release(struct tid_info *t, unsigned int chan,
3076 unsigned int tid)
b8ff05a9
DM		 3077{
3078 void **p = &t->tid_tab[tid];
3079 struct adapter *adap = container_of(t, struct adapter, tids);
3080
3081 spin_lock_bh(&adap->tid_release_lock);
3082 *p = adap->tid_release_head;
3083 /* Low 2 bits encode the Tx channel number */
3084 adap->tid_release_head = (void **)((uintptr_t)p | chan);
3085 if (!adap->tid_release_task_busy) {
3086 adap->tid_release_task_busy = true;
3069ee9b 3087 queue_work(workq, &adap->tid_release_task);
b8ff05a9
DM		 3088 }
3089 spin_unlock_bh(&adap->tid_release_lock);
3090}
b8ff05a9
DM		 3091
3092/*
3093 * Process the list of pending TID release requests.
3094 */
3095static void process_tid_release_list(struct work_struct *work)
3096{
3097 struct sk_buff *skb;
3098 struct adapter *adap;
3099
3100 adap = container_of(work, struct adapter, tid_release_task);
3101
3102 spin_lock_bh(&adap->tid_release_lock);
3103 while (adap->tid_release_head) {
3104 void **p = adap->tid_release_head;
3105 unsigned int chan = (uintptr_t)p & 3;
3106 p = (void *)p - chan;
3107
3108 adap->tid_release_head = *p;
3109 *p = NULL;
3110 spin_unlock_bh(&adap->tid_release_lock);
3111
3112 while (!(skb = alloc_skb(sizeof(struct cpl_tid_release),
3113 GFP_KERNEL)))
3114 schedule_timeout_uninterruptible(1);
3115
3116 mk_tid_release(skb, chan, p - adap->tids.tid_tab);
3117 t4_ofld_send(adap, skb);
3118 spin_lock_bh(&adap->tid_release_lock);
3119 }
3120 adap->tid_release_task_busy = false;
3121 spin_unlock_bh(&adap->tid_release_lock);
3122}
3123
3124/*
3125 * Release a TID and inform HW. If we are unable to allocate the release
3126 * message we defer to a work queue.
3127 */
3128void cxgb4_remove_tid(struct tid_info *t, unsigned int chan, unsigned int tid)
3129{
3130 void *old;
3131 struct sk_buff *skb;
3132 struct adapter *adap = container_of(t, struct adapter, tids);
3133
3134 old = t->tid_tab[tid];
3135 skb = alloc_skb(sizeof(struct cpl_tid_release), GFP_ATOMIC);
3136 if (likely(skb)) {
3137 t->tid_tab[tid] = NULL;
3138 mk_tid_release(skb, chan, tid);
3139 t4_ofld_send(adap, skb);
3140 } else
3141 cxgb4_queue_tid_release(t, chan, tid);
3142 if (old)
3143 atomic_dec(&t->tids_in_use);
3144}
3145EXPORT_SYMBOL(cxgb4_remove_tid);
3146
3147/*
3148 * Allocate and initialize the TID tables. Returns 0 on success.
3149 */
3150static int tid_init(struct tid_info *t)
3151{
3152 size_t size;
f2b7e78d 3153 unsigned int stid_bmap_size;
b8ff05a9 3154 unsigned int natids = t->natids;
b6f8eaec 3155 struct adapter *adap = container_of(t, struct adapter, tids);
b8ff05a9 3156
dca4faeb 3157 stid_bmap_size = BITS_TO_LONGS(t->nstids + t->nsftids);
f2b7e78d
VP		 3158 size = t->ntids * sizeof(*t->tid_tab) +
3159 natids * sizeof(*t->atid_tab) +
b8ff05a9 3160 t->nstids * sizeof(*t->stid_tab) +
dca4faeb 3161 t->nsftids * sizeof(*t->stid_tab) +
f2b7e78d 3162 stid_bmap_size * sizeof(long) +
dca4faeb
VP		 3163 t->nftids * sizeof(*t->ftid_tab) +
3164 t->nsftids * sizeof(*t->ftid_tab);
f2b7e78d 3165
b8ff05a9
DM		 3166 t->tid_tab = t4_alloc_mem(size);
3167 if (!t->tid_tab)
3168 return -ENOMEM;
3169
3170 t->atid_tab = (union aopen_entry *)&t->tid_tab[t->ntids];
3171 t->stid_tab = (struct serv_entry *)&t->atid_tab[natids];
dca4faeb 3172 t->stid_bmap = (unsigned long *)&t->stid_tab[t->nstids + t->nsftids];
f2b7e78d 3173 t->ftid_tab = (struct filter_entry *)&t->stid_bmap[stid_bmap_size];
b8ff05a9
DM		 3174 spin_lock_init(&t->stid_lock);
3175 spin_lock_init(&t->atid_lock);
3176
3177 t->stids_in_use = 0;
3178 t->afree = NULL;
3179 t->atids_in_use = 0;
3180 atomic_set(&t->tids_in_use, 0);
3181
3182 /* Setup the free list for atid_tab and clear the stid bitmap. */
3183 if (natids) {
3184 while (--natids)
3185 t->atid_tab[natids - 1].next = &t->atid_tab[natids];
3186 t->afree = t->atid_tab;
3187 }
dca4faeb 3188 bitmap_zero(t->stid_bmap, t->nstids + t->nsftids);
b6f8eaec
KS		 3189 /* Reserve stid 0 for T4/T5 adapters */
3190 if (!t->stid_base &&
3191 (is_t4(adap->params.chip) || is_t5(adap->params.chip)))
3192 __set_bit(0, t->stid_bmap);
3193
b8ff05a9
DM		 3194 return 0;
3195}
3196
01bcca68
VP		 3197static int cxgb4_clip_get(const struct net_device *dev,
3198 const struct in6_addr *lip)
3199{
3200 struct adapter *adap;
3201 struct fw_clip_cmd c;
3202
3203 adap = netdev2adap(dev);
3204 memset(&c, 0, sizeof(c));
3205 c.op_to_write = htonl(FW_CMD_OP(FW_CLIP_CMD) |
3206 FW_CMD_REQUEST | FW_CMD_WRITE);
3207 c.alloc_to_len16 = htonl(F_FW_CLIP_CMD_ALLOC | FW_LEN16(c));
3208 *(__be64 *)&c.ip_hi = *(__be64 *)(lip->s6_addr);
3209 *(__be64 *)&c.ip_lo = *(__be64 *)(lip->s6_addr + 8);
3210 return t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, false);
3211}
3212
3213static int cxgb4_clip_release(const struct net_device *dev,
3214 const struct in6_addr *lip)
3215{
3216 struct adapter *adap;
3217 struct fw_clip_cmd c;
3218
3219 adap = netdev2adap(dev);
3220 memset(&c, 0, sizeof(c));
3221 c.op_to_write = htonl(FW_CMD_OP(FW_CLIP_CMD) |
3222 FW_CMD_REQUEST | FW_CMD_READ);
3223 c.alloc_to_len16 = htonl(F_FW_CLIP_CMD_FREE | FW_LEN16(c));
3224 *(__be64 *)&c.ip_hi = *(__be64 *)(lip->s6_addr);
3225 *(__be64 *)&c.ip_lo = *(__be64 *)(lip->s6_addr + 8);
3226 return t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, false);
3227}
3228
b8ff05a9
DM		 3229/**
3230 * cxgb4_create_server - create an IP server
3231 * @dev: the device
3232 * @stid: the server TID
3233 * @sip: local IP address to bind server to
3234 * @sport: the server's TCP port
3235 * @queue: queue to direct messages from this server to
3236 *
3237 * Create an IP server for the given port and address.
3238 * Returns <0 on error and one of the %NET_XMIT_* values on success.
3239 */
3240int cxgb4_create_server(const struct net_device *dev, unsigned int stid,
793dad94
VP		 3241 __be32 sip, __be16 sport, __be16 vlan,
3242 unsigned int queue)
b8ff05a9
DM		 3243{
3244 unsigned int chan;
3245 struct sk_buff *skb;
3246 struct adapter *adap;
3247 struct cpl_pass_open_req *req;
80f40c1f 3248 int ret;
b8ff05a9
DM		 3249
3250 skb = alloc_skb(sizeof(*req), GFP_KERNEL);
3251 if (!skb)
3252 return -ENOMEM;
3253
3254 adap = netdev2adap(dev);
3255 req = (struct cpl_pass_open_req *)__skb_put(skb, sizeof(*req));
3256 INIT_TP_WR(req, 0);
3257 OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_PASS_OPEN_REQ, stid));
3258 req->local_port = sport;
3259 req->peer_port = htons(0);
3260 req->local_ip = sip;
3261 req->peer_ip = htonl(0);
e46dab4d 3262 chan = rxq_to_chan(&adap->sge, queue);
b8ff05a9
DM		 3263 req->opt0 = cpu_to_be64(TX_CHAN(chan));
3264 req->opt1 = cpu_to_be64(CONN_POLICY_ASK |
3265 SYN_RSS_ENABLE | SYN_RSS_QUEUE(queue));
80f40c1f
VP		 3266 ret = t4_mgmt_tx(adap, skb);
3267 return net_xmit_eval(ret);
b8ff05a9
DM		 3268}
3269EXPORT_SYMBOL(cxgb4_create_server);
3270
80f40c1f
VP		 3271/* cxgb4_create_server6 - create an IPv6 server
3272 * @dev: the device
3273 * @stid: the server TID
3274 * @sip: local IPv6 address to bind server to
3275 * @sport: the server's TCP port
3276 * @queue: queue to direct messages from this server to
3277 *
3278 * Create an IPv6 server for the given port and address.
3279 * Returns <0 on error and one of the %NET_XMIT_* values on success.
3280 */
3281int cxgb4_create_server6(const struct net_device *dev, unsigned int stid,
3282 const struct in6_addr *sip, __be16 sport,
3283 unsigned int queue)
3284{
3285 unsigned int chan;
3286 struct sk_buff *skb;
3287 struct adapter *adap;
3288 struct cpl_pass_open_req6 *req;
3289 int ret;
3290
3291 skb = alloc_skb(sizeof(*req), GFP_KERNEL);
3292 if (!skb)
3293 return -ENOMEM;
3294
3295 adap = netdev2adap(dev);
3296 req = (struct cpl_pass_open_req6 *)__skb_put(skb, sizeof(*req));
3297 INIT_TP_WR(req, 0);
3298 OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_PASS_OPEN_REQ6, stid));
3299 req->local_port = sport;
3300 req->peer_port = htons(0);
3301 req->local_ip_hi = *(__be64 *)(sip->s6_addr);
3302 req->local_ip_lo = *(__be64 *)(sip->s6_addr + 8);
3303 req->peer_ip_hi = cpu_to_be64(0);
3304 req->peer_ip_lo = cpu_to_be64(0);
3305 chan = rxq_to_chan(&adap->sge, queue);
3306 req->opt0 = cpu_to_be64(TX_CHAN(chan));
3307 req->opt1 = cpu_to_be64(CONN_POLICY_ASK |
3308 SYN_RSS_ENABLE | SYN_RSS_QUEUE(queue));
3309 ret = t4_mgmt_tx(adap, skb);
3310 return net_xmit_eval(ret);
3311}
3312EXPORT_SYMBOL(cxgb4_create_server6);
3313
3314int cxgb4_remove_server(const struct net_device *dev, unsigned int stid,
3315 unsigned int queue, bool ipv6)
3316{
3317 struct sk_buff *skb;
3318 struct adapter *adap;
3319 struct cpl_close_listsvr_req *req;
3320 int ret;
3321
3322 adap = netdev2adap(dev);
3323
3324 skb = alloc_skb(sizeof(*req), GFP_KERNEL);
3325 if (!skb)
3326 return -ENOMEM;
3327
3328 req = (struct cpl_close_listsvr_req *)__skb_put(skb, sizeof(*req));
3329 INIT_TP_WR(req, 0);
3330 OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_CLOSE_LISTSRV_REQ, stid));
3331 req->reply_ctrl = htons(NO_REPLY(0) | (ipv6 ? LISTSVR_IPV6(1) :
3332 LISTSVR_IPV6(0)) | QUEUENO(queue));
3333 ret = t4_mgmt_tx(adap, skb);
3334 return net_xmit_eval(ret);
3335}
3336EXPORT_SYMBOL(cxgb4_remove_server);
3337
b8ff05a9
DM		 3338/**
3339 * cxgb4_best_mtu - find the entry in the MTU table closest to an MTU
3340 * @mtus: the HW MTU table
3341 * @mtu: the target MTU
3342 * @idx: index of selected entry in the MTU table
3343 *
3344 * Returns the index and the value in the HW MTU table that is closest to
3345 * but does not exceed @mtu, unless @mtu is smaller than any value in the
3346 * table, in which case that smallest available value is selected.
3347 */
3348unsigned int cxgb4_best_mtu(const unsigned short *mtus, unsigned short mtu,
3349 unsigned int *idx)
3350{
3351 unsigned int i = 0;
3352
3353 while (i < NMTUS - 1 && mtus[i + 1] <= mtu)
3354 ++i;
3355 if (idx)
3356 *idx = i;
3357 return mtus[i];
3358}
3359EXPORT_SYMBOL(cxgb4_best_mtu);
3360
3361/**
3362 * cxgb4_port_chan - get the HW channel of a port
3363 * @dev: the net device for the port
3364 *
3365 * Return the HW Tx channel of the given port.
3366 */
3367unsigned int cxgb4_port_chan(const struct net_device *dev)
3368{
3369 return netdev2pinfo(dev)->tx_chan;
3370}
3371EXPORT_SYMBOL(cxgb4_port_chan);
3372
881806bc
VP		 3373unsigned int cxgb4_dbfifo_count(const struct net_device *dev, int lpfifo)
3374{
3375 struct adapter *adap = netdev2adap(dev);
2cc301d2 3376 u32 v1, v2, lp_count, hp_count;
881806bc 3377
2cc301d2
SR		 3378 v1 = t4_read_reg(adap, A_SGE_DBFIFO_STATUS);
3379 v2 = t4_read_reg(adap, SGE_DBFIFO_STATUS2);
d14807dd 3380 if (is_t4(adap->params.chip)) {
2cc301d2
SR		 3381 lp_count = G_LP_COUNT(v1);
3382 hp_count = G_HP_COUNT(v1);
3383 } else {
3384 lp_count = G_LP_COUNT_T5(v1);
3385 hp_count = G_HP_COUNT_T5(v2);
3386 }
3387 return lpfifo ? lp_count : hp_count;
881806bc
VP		 3388}
3389EXPORT_SYMBOL(cxgb4_dbfifo_count);
3390
b8ff05a9
DM		 3391/**
3392 * cxgb4_port_viid - get the VI id of a port
3393 * @dev: the net device for the port
3394 *
3395 * Return the VI id of the given port.
3396 */
3397unsigned int cxgb4_port_viid(const struct net_device *dev)
3398{
3399 return netdev2pinfo(dev)->viid;
3400}
3401EXPORT_SYMBOL(cxgb4_port_viid);
3402
3403/**
3404 * cxgb4_port_idx - get the index of a port
3405 * @dev: the net device for the port
3406 *
3407 * Return the index of the given port.
3408 */
3409unsigned int cxgb4_port_idx(const struct net_device *dev)
3410{
3411 return netdev2pinfo(dev)->port_id;
3412}
3413EXPORT_SYMBOL(cxgb4_port_idx);
3414
b8ff05a9
DM		 3415void cxgb4_get_tcp_stats(struct pci_dev *pdev, struct tp_tcp_stats *v4,
3416 struct tp_tcp_stats *v6)
3417{
3418 struct adapter *adap = pci_get_drvdata(pdev);
3419
3420 spin_lock(&adap->stats_lock);
3421 t4_tp_get_tcp_stats(adap, v4, v6);
3422 spin_unlock(&adap->stats_lock);
3423}
3424EXPORT_SYMBOL(cxgb4_get_tcp_stats);
3425
3426void cxgb4_iscsi_init(struct net_device *dev, unsigned int tag_mask,
3427 const unsigned int *pgsz_order)
3428{
3429 struct adapter *adap = netdev2adap(dev);
3430
3431 t4_write_reg(adap, ULP_RX_ISCSI_TAGMASK, tag_mask);
3432 t4_write_reg(adap, ULP_RX_ISCSI_PSZ, HPZ0(pgsz_order[0]) |
3433 HPZ1(pgsz_order[1]) | HPZ2(pgsz_order[2]) |
3434 HPZ3(pgsz_order[3]));
3435}
3436EXPORT_SYMBOL(cxgb4_iscsi_init);
3437
3069ee9b
VP		 3438int cxgb4_flush_eq_cache(struct net_device *dev)
3439{
3440 struct adapter *adap = netdev2adap(dev);
3441 int ret;
3442
3443 ret = t4_fwaddrspace_write(adap, adap->mbox,
3444 0xe1000000 + A_SGE_CTXT_CMD, 0x20000000);
3445 return ret;
3446}
3447EXPORT_SYMBOL(cxgb4_flush_eq_cache);
3448
3449static int read_eq_indices(struct adapter *adap, u16 qid, u16 *pidx, u16 *cidx)
3450{
3451 u32 addr = t4_read_reg(adap, A_SGE_DBQ_CTXT_BADDR) + 24 * qid + 8;
3452 __be64 indices;
3453 int ret;
3454
3455 ret = t4_mem_win_read_len(adap, addr, (__be32 *)&indices, 8);
3456 if (!ret) {
404d9e3f
VP		 3457 *cidx = (be64_to_cpu(indices) >> 25) & 0xffff;
3458 *pidx = (be64_to_cpu(indices) >> 9) & 0xffff;
3069ee9b
VP		 3459 }
3460 return ret;
3461}
3462
3463int cxgb4_sync_txq_pidx(struct net_device *dev, u16 qid, u16 pidx,
3464 u16 size)
3465{
3466 struct adapter *adap = netdev2adap(dev);
3467 u16 hw_pidx, hw_cidx;
3468 int ret;
3469
3470 ret = read_eq_indices(adap, qid, &hw_pidx, &hw_cidx);
3471 if (ret)
3472 goto out;
3473
3474 if (pidx != hw_pidx) {
3475 u16 delta;
3476
3477 if (pidx >= hw_pidx)
3478 delta = pidx - hw_pidx;
3479 else
3480 delta = size - hw_pidx + pidx;
3481 wmb();
840f3000
VP		 3482 t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL),
3483 QID(qid) | PIDX(delta));
3069ee9b
VP		 3484 }
3485out:
3486 return ret;
3487}
3488EXPORT_SYMBOL(cxgb4_sync_txq_pidx);
3489
3cbdb928
VP		 3490void cxgb4_disable_db_coalescing(struct net_device *dev)
3491{
3492 struct adapter *adap;
3493
3494 adap = netdev2adap(dev);
3495 t4_set_reg_field(adap, A_SGE_DOORBELL_CONTROL, F_NOCOALESCE,
3496 F_NOCOALESCE);
3497}
3498EXPORT_SYMBOL(cxgb4_disable_db_coalescing);
3499
3500void cxgb4_enable_db_coalescing(struct net_device *dev)
3501{
3502 struct adapter *adap;
3503
3504 adap = netdev2adap(dev);
3505 t4_set_reg_field(adap, A_SGE_DOORBELL_CONTROL, F_NOCOALESCE, 0);
3506}
3507EXPORT_SYMBOL(cxgb4_enable_db_coalescing);
3508
b8ff05a9
DM		 3509static struct pci_driver cxgb4_driver;
3510
3511static void check_neigh_update(struct neighbour *neigh)
3512{
3513 const struct device *parent;
3514 const struct net_device *netdev = neigh->dev;
3515
3516 if (netdev->priv_flags & IFF_802_1Q_VLAN)
3517 netdev = vlan_dev_real_dev(netdev);
3518 parent = netdev->dev.parent;
3519 if (parent && parent->driver == &cxgb4_driver.driver)
3520 t4_l2t_update(dev_get_drvdata(parent), neigh);
3521}
3522
3523static int netevent_cb(struct notifier_block *nb, unsigned long event,
3524 void *data)
3525{
3526 switch (event) {
3527 case NETEVENT_NEIGH_UPDATE:
3528 check_neigh_update(data);
3529 break;
b8ff05a9
DM		 3530 case NETEVENT_REDIRECT:
3531 default:
3532 break;
3533 }
3534 return 0;
3535}
3536
3537static bool netevent_registered;
3538static struct notifier_block cxgb4_netevent_nb = {
3539 .notifier_call = netevent_cb
3540};
3541
3069ee9b
VP		 3542static void drain_db_fifo(struct adapter *adap, int usecs)
3543{
2cc301d2 3544 u32 v1, v2, lp_count, hp_count;
3069ee9b
VP		 3545
3546 do {
2cc301d2
SR		 3547 v1 = t4_read_reg(adap, A_SGE_DBFIFO_STATUS);
3548 v2 = t4_read_reg(adap, SGE_DBFIFO_STATUS2);
d14807dd 3549 if (is_t4(adap->params.chip)) {
2cc301d2
SR		 3550 lp_count = G_LP_COUNT(v1);
3551 hp_count = G_HP_COUNT(v1);
3552 } else {
3553 lp_count = G_LP_COUNT_T5(v1);
3554 hp_count = G_HP_COUNT_T5(v2);
3555 }
3556
3557 if (lp_count == 0 && hp_count == 0)
3558 break;
3069ee9b
VP		 3559 set_current_state(TASK_UNINTERRUPTIBLE);
3560 schedule_timeout(usecs_to_jiffies(usecs));
3069ee9b
VP		 3561 } while (1);
3562}
3563
3564static void disable_txq_db(struct sge_txq *q)
3565{
3566 spin_lock_irq(&q->db_lock);
3567 q->db_disabled = 1;
3568 spin_unlock_irq(&q->db_lock);
3569}
3570
3571static void enable_txq_db(struct sge_txq *q)
3572{
3573 spin_lock_irq(&q->db_lock);
3574 q->db_disabled = 0;
3575 spin_unlock_irq(&q->db_lock);
3576}
3577
3578static void disable_dbs(struct adapter *adap)
3579{
3580 int i;
3581
3582 for_each_ethrxq(&adap->sge, i)
3583 disable_txq_db(&adap->sge.ethtxq[i].q);
3584 for_each_ofldrxq(&adap->sge, i)
3585 disable_txq_db(&adap->sge.ofldtxq[i].q);
3586 for_each_port(adap, i)
3587 disable_txq_db(&adap->sge.ctrlq[i].q);
3588}
3589
3590static void enable_dbs(struct adapter *adap)
3591{
3592 int i;
3593
3594 for_each_ethrxq(&adap->sge, i)
3595 enable_txq_db(&adap->sge.ethtxq[i].q);
3596 for_each_ofldrxq(&adap->sge, i)
3597 enable_txq_db(&adap->sge.ofldtxq[i].q);
3598 for_each_port(adap, i)
3599 enable_txq_db(&adap->sge.ctrlq[i].q);
3600}
3601
3602static void sync_txq_pidx(struct adapter *adap, struct sge_txq *q)
3603{
3604 u16 hw_pidx, hw_cidx;
3605 int ret;
3606
3607 spin_lock_bh(&q->db_lock);
3608 ret = read_eq_indices(adap, (u16)q->cntxt_id, &hw_pidx, &hw_cidx);
3609 if (ret)
3610 goto out;
3611 if (q->db_pidx != hw_pidx) {
3612 u16 delta;
3613
3614 if (q->db_pidx >= hw_pidx)
3615 delta = q->db_pidx - hw_pidx;
3616 else
3617 delta = q->size - hw_pidx + q->db_pidx;
3618 wmb();
840f3000
VP		 3619 t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL),
3620 QID(q->cntxt_id) | PIDX(delta));
3069ee9b
VP		 3621 }
3622out:
3623 q->db_disabled = 0;
3624 spin_unlock_bh(&q->db_lock);
3625 if (ret)
3626 CH_WARN(adap, "DB drop recovery failed.\n");
3627}
3628static void recover_all_queues(struct adapter *adap)
3629{
3630 int i;
3631
3632 for_each_ethrxq(&adap->sge, i)
3633 sync_txq_pidx(adap, &adap->sge.ethtxq[i].q);
3634 for_each_ofldrxq(&adap->sge, i)
3635 sync_txq_pidx(adap, &adap->sge.ofldtxq[i].q);
3636 for_each_port(adap, i)
3637 sync_txq_pidx(adap, &adap->sge.ctrlq[i].q);
3638}
3639
881806bc
VP		 3640static void notify_rdma_uld(struct adapter *adap, enum cxgb4_control cmd)
3641{
3642 mutex_lock(&uld_mutex);
3643 if (adap->uld_handle[CXGB4_ULD_RDMA])
3644 ulds[CXGB4_ULD_RDMA].control(adap->uld_handle[CXGB4_ULD_RDMA],
3645 cmd);
3646 mutex_unlock(&uld_mutex);
3647}
3648
3649static void process_db_full(struct work_struct *work)
3650{
3651 struct adapter *adap;
881806bc
VP		 3652
3653 adap = container_of(work, struct adapter, db_full_task);
3654
881806bc 3655 notify_rdma_uld(adap, CXGB4_CONTROL_DB_FULL);
3069ee9b 3656 drain_db_fifo(adap, dbfifo_drain_delay);
840f3000
VP		 3657 t4_set_reg_field(adap, SGE_INT_ENABLE3,
3658 DBFIFO_HP_INT | DBFIFO_LP_INT,
3659 DBFIFO_HP_INT | DBFIFO_LP_INT);
881806bc 3660 notify_rdma_uld(adap, CXGB4_CONTROL_DB_EMPTY);
881806bc
VP		 3661}
3662
3663static void process_db_drop(struct work_struct *work)
3664{
3665 struct adapter *adap;
881806bc 3666
3069ee9b 3667 adap = container_of(work, struct adapter, db_drop_task);
881806bc 3668
d14807dd 3669 if (is_t4(adap->params.chip)) {
2cc301d2
SR		 3670 disable_dbs(adap);
3671 notify_rdma_uld(adap, CXGB4_CONTROL_DB_DROP);
3672 drain_db_fifo(adap, 1);
3673 recover_all_queues(adap);
3674 enable_dbs(adap);
3675 } else {
3676 u32 dropped_db = t4_read_reg(adap, 0x010ac);
3677 u16 qid = (dropped_db >> 15) & 0x1ffff;
3678 u16 pidx_inc = dropped_db & 0x1fff;
3679 unsigned int s_qpp;
3680 unsigned short udb_density;
3681 unsigned long qpshift;
3682 int page;
3683 u32 udb;
3684
3685 dev_warn(adap->pdev_dev,
3686 "Dropped DB 0x%x qid %d bar2 %d coalesce %d pidx %d\n",
3687 dropped_db, qid,
3688 (dropped_db >> 14) & 1,
3689 (dropped_db >> 13) & 1,
3690 pidx_inc);
3691
3692 drain_db_fifo(adap, 1);
3693
3694 s_qpp = QUEUESPERPAGEPF1 * adap->fn;
3695 udb_density = 1 << QUEUESPERPAGEPF0_GET(t4_read_reg(adap,
3696 SGE_EGRESS_QUEUES_PER_PAGE_PF) >> s_qpp);
3697 qpshift = PAGE_SHIFT - ilog2(udb_density);
3698 udb = qid << qpshift;
3699 udb &= PAGE_MASK;
3700 page = udb / PAGE_SIZE;
3701 udb += (qid - (page * udb_density)) * 128;
3702
3703 writel(PIDX(pidx_inc), adap->bar2 + udb + 8);
3704
3705 /* Re-enable BAR2 WC */
3706 t4_set_reg_field(adap, 0x10b0, 1<<15, 1<<15);
3707 }
3708
3069ee9b 3709 t4_set_reg_field(adap, A_SGE_DOORBELL_CONTROL, F_DROPPED_DB, 0);
881806bc
VP		 3710}
3711
3712void t4_db_full(struct adapter *adap)
3713{
d14807dd 3714 if (is_t4(adap->params.chip)) {
2cc301d2
SR		 3715 t4_set_reg_field(adap, SGE_INT_ENABLE3,
3716 DBFIFO_HP_INT | DBFIFO_LP_INT, 0);
3717 queue_work(workq, &adap->db_full_task);
3718 }
881806bc
VP		 3719}
3720
3721void t4_db_dropped(struct adapter *adap)
3722{
d14807dd 3723 if (is_t4(adap->params.chip))
2cc301d2 3724 queue_work(workq, &adap->db_drop_task);
881806bc
VP		 3725}
3726
b8ff05a9
DM		 3727static void uld_attach(struct adapter *adap, unsigned int uld)
3728{
3729 void *handle;
3730 struct cxgb4_lld_info lli;
dca4faeb 3731 unsigned short i;
b8ff05a9
DM		 3732
3733 lli.pdev = adap->pdev;
3734 lli.l2t = adap->l2t;
3735 lli.tids = &adap->tids;
3736 lli.ports = adap->port;
3737 lli.vr = &adap->vres;
3738 lli.mtus = adap->params.mtus;
3739 if (uld == CXGB4_ULD_RDMA) {
3740 lli.rxq_ids = adap->sge.rdma_rxq;
3741 lli.nrxq = adap->sge.rdmaqs;
3742 } else if (uld == CXGB4_ULD_ISCSI) {
3743 lli.rxq_ids = adap->sge.ofld_rxq;
3744 lli.nrxq = adap->sge.ofldqsets;
3745 }
3746 lli.ntxq = adap->sge.ofldqsets;
3747 lli.nchan = adap->params.nports;
3748 lli.nports = adap->params.nports;
3749 lli.wr_cred = adap->params.ofldq_wr_cred;
d14807dd 3750 lli.adapter_type = adap->params.chip;
b8ff05a9
DM		 3751 lli.iscsi_iolen = MAXRXDATA_GET(t4_read_reg(adap, TP_PARA_REG2));
3752 lli.udb_density = 1 << QUEUESPERPAGEPF0_GET(
060e0c75
DM		 3753 t4_read_reg(adap, SGE_EGRESS_QUEUES_PER_PAGE_PF) >>
3754 (adap->fn * 4));
b8ff05a9 3755 lli.ucq_density = 1 << QUEUESPERPAGEPF0_GET(
060e0c75
DM		 3756 t4_read_reg(adap, SGE_INGRESS_QUEUES_PER_PAGE_PF) >>
3757 (adap->fn * 4));
dcf7b6f5 3758 lli.filt_mode = adap->params.tp.vlan_pri_map;
dca4faeb
VP		 3759 /* MODQ_REQ_MAP sets queues 0-3 to chan 0-3 */
3760 for (i = 0; i < NCHAN; i++)
3761 lli.tx_modq[i] = i;
b8ff05a9
DM		 3762 lli.gts_reg = adap->regs + MYPF_REG(SGE_PF_GTS);
3763 lli.db_reg = adap->regs + MYPF_REG(SGE_PF_KDOORBELL);
3764 lli.fw_vers = adap->params.fw_vers;
3069ee9b 3765 lli.dbfifo_int_thresh = dbfifo_int_thresh;
dca4faeb
VP		 3766 lli.sge_pktshift = adap->sge.pktshift;
3767 lli.enable_fw_ofld_conn = adap->flags & FW_OFLD_CONN;
b8ff05a9
DM		 3768
3769 handle = ulds[uld].add(&lli);
3770 if (IS_ERR(handle)) {
3771 dev_warn(adap->pdev_dev,
3772 "could not attach to the %s driver, error %ld\n",
3773 uld_str[uld], PTR_ERR(handle));
3774 return;
3775 }
3776
3777 adap->uld_handle[uld] = handle;
3778
3779 if (!netevent_registered) {
3780 register_netevent_notifier(&cxgb4_netevent_nb);
3781 netevent_registered = true;
3782 }
e29f5dbc
DM		 3783
3784 if (adap->flags & FULL_INIT_DONE)
3785 ulds[uld].state_change(handle, CXGB4_STATE_UP);
b8ff05a9
DM		 3786}
3787
3788static void attach_ulds(struct adapter *adap)
3789{
3790 unsigned int i;
3791
01bcca68
VP		 3792 spin_lock(&adap_rcu_lock);
3793 list_add_tail_rcu(&adap->rcu_node, &adap_rcu_list);
3794 spin_unlock(&adap_rcu_lock);
3795
b8ff05a9
DM		 3796 mutex_lock(&uld_mutex);
3797 list_add_tail(&adap->list_node, &adapter_list);
3798 for (i = 0; i < CXGB4_ULD_MAX; i++)
3799 if (ulds[i].add)
3800 uld_attach(adap, i);
3801 mutex_unlock(&uld_mutex);
3802}
3803
3804static void detach_ulds(struct adapter *adap)
3805{
3806 unsigned int i;
3807
3808 mutex_lock(&uld_mutex);
3809 list_del(&adap->list_node);
3810 for (i = 0; i < CXGB4_ULD_MAX; i++)
3811 if (adap->uld_handle[i]) {
3812 ulds[i].state_change(adap->uld_handle[i],
3813 CXGB4_STATE_DETACH);
3814 adap->uld_handle[i] = NULL;
3815 }
3816 if (netevent_registered && list_empty(&adapter_list)) {
3817 unregister_netevent_notifier(&cxgb4_netevent_nb);
3818 netevent_registered = false;
3819 }
3820 mutex_unlock(&uld_mutex);
01bcca68
VP		 3821
3822 spin_lock(&adap_rcu_lock);
3823 list_del_rcu(&adap->rcu_node);
3824 spin_unlock(&adap_rcu_lock);
b8ff05a9
DM		 3825}
3826
3827static void notify_ulds(struct adapter *adap, enum cxgb4_state new_state)
3828{
3829 unsigned int i;
3830
3831 mutex_lock(&uld_mutex);
3832 for (i = 0; i < CXGB4_ULD_MAX; i++)
3833 if (adap->uld_handle[i])
3834 ulds[i].state_change(adap->uld_handle[i], new_state);
3835 mutex_unlock(&uld_mutex);
3836}
3837
3838/**
3839 * cxgb4_register_uld - register an upper-layer driver
3840 * @type: the ULD type
3841 * @p: the ULD methods
3842 *
3843 * Registers an upper-layer driver with this driver and notifies the ULD
3844 * about any presently available devices that support its type. Returns
3845 * %-EBUSY if a ULD of the same type is already registered.
3846 */
3847int cxgb4_register_uld(enum cxgb4_uld type, const struct cxgb4_uld_info *p)
3848{
3849 int ret = 0;
3850 struct adapter *adap;
3851
3852 if (type >= CXGB4_ULD_MAX)
3853 return -EINVAL;
3854 mutex_lock(&uld_mutex);
3855 if (ulds[type].add) {
3856 ret = -EBUSY;
3857 goto out;
3858 }
3859 ulds[type] = *p;
3860 list_for_each_entry(adap, &adapter_list, list_node)
3861 uld_attach(adap, type);
3862out: mutex_unlock(&uld_mutex);
3863 return ret;
3864}
3865EXPORT_SYMBOL(cxgb4_register_uld);
3866
3867/**
3868 * cxgb4_unregister_uld - unregister an upper-layer driver
3869 * @type: the ULD type
3870 *
3871 * Unregisters an existing upper-layer driver.
3872 */
3873int cxgb4_unregister_uld(enum cxgb4_uld type)
3874{
3875 struct adapter *adap;
3876
3877 if (type >= CXGB4_ULD_MAX)
3878 return -EINVAL;
3879 mutex_lock(&uld_mutex);
3880 list_for_each_entry(adap, &adapter_list, list_node)
3881 adap->uld_handle[type] = NULL;
3882 ulds[type].add = NULL;
3883 mutex_unlock(&uld_mutex);
3884 return 0;
3885}
3886EXPORT_SYMBOL(cxgb4_unregister_uld);
3887
01bcca68
VP		 3888/* Check if netdev on which event is occured belongs to us or not. Return
3889 * suceess (1) if it belongs otherwise failure (0).
3890 */
3891static int cxgb4_netdev(struct net_device *netdev)
3892{
3893 struct adapter *adap;
3894 int i;
3895
3896 spin_lock(&adap_rcu_lock);
3897 list_for_each_entry_rcu(adap, &adap_rcu_list, rcu_node)
3898 for (i = 0; i < MAX_NPORTS; i++)
3899 if (adap->port[i] == netdev) {
3900 spin_unlock(&adap_rcu_lock);
3901 return 1;
3902 }
3903 spin_unlock(&adap_rcu_lock);
3904 return 0;
3905}
3906
3907static int clip_add(struct net_device *event_dev, struct inet6_ifaddr *ifa,
3908 unsigned long event)
3909{
3910 int ret = NOTIFY_DONE;
3911
3912 rcu_read_lock();
3913 if (cxgb4_netdev(event_dev)) {
3914 switch (event) {
3915 case NETDEV_UP:
3916 ret = cxgb4_clip_get(event_dev,
3917 (const struct in6_addr *)ifa->addr.s6_addr);
3918 if (ret < 0) {
3919 rcu_read_unlock();
3920 return ret;
3921 }
3922 ret = NOTIFY_OK;
3923 break;
3924 case NETDEV_DOWN:
3925 cxgb4_clip_release(event_dev,
3926 (const struct in6_addr *)ifa->addr.s6_addr);
3927 ret = NOTIFY_OK;
3928 break;
3929 default:
3930 break;
3931 }
3932 }
3933 rcu_read_unlock();
3934 return ret;
3935}
3936
3937static int cxgb4_inet6addr_handler(struct notifier_block *this,
3938 unsigned long event, void *data)
3939{
3940 struct inet6_ifaddr *ifa = data;
3941 struct net_device *event_dev;
3942 int ret = NOTIFY_DONE;
01bcca68 3943 struct bonding *bond = netdev_priv(ifa->idev->dev);
9caff1e7 3944 struct list_head *iter;
01bcca68
VP		 3945 struct slave *slave;
3946 struct pci_dev *first_pdev = NULL;
3947
3948 if (ifa->idev->dev->priv_flags & IFF_802_1Q_VLAN) {
3949 event_dev = vlan_dev_real_dev(ifa->idev->dev);
3950 ret = clip_add(event_dev, ifa, event);
3951 } else if (ifa->idev->dev->flags & IFF_MASTER) {
3952 /* It is possible that two different adapters are bonded in one
3953 * bond. We need to find such different adapters and add clip
3954 * in all of them only once.
3955 */
3956 read_lock(&bond->lock);
9caff1e7 3957 bond_for_each_slave(bond, slave, iter) {
01bcca68
VP		 3958 if (!first_pdev) {
3959 ret = clip_add(slave->dev, ifa, event);
3960 /* If clip_add is success then only initialize
3961 * first_pdev since it means it is our device
3962 */
3963 if (ret == NOTIFY_OK)
3964 first_pdev = to_pci_dev(
3965 slave->dev->dev.parent);
3966 } else if (first_pdev !=
3967 to_pci_dev(slave->dev->dev.parent))
3968 ret = clip_add(slave->dev, ifa, event);
3969 }
3970 read_unlock(&bond->lock);
3971 } else
3972 ret = clip_add(ifa->idev->dev, ifa, event);
3973
3974 return ret;
3975}
3976
3977static struct notifier_block cxgb4_inet6addr_notifier = {
3978 .notifier_call = cxgb4_inet6addr_handler
3979};
3980
3981/* Retrieves IPv6 addresses from a root device (bond, vlan) associated with
3982 * a physical device.
3983 * The physical device reference is needed to send the actul CLIP command.
3984 */
3985static int update_dev_clip(struct net_device *root_dev, struct net_device *dev)
3986{
3987 struct inet6_dev *idev = NULL;
3988 struct inet6_ifaddr *ifa;
3989 int ret = 0;
3990
3991 idev = __in6_dev_get(root_dev);
3992 if (!idev)
3993 return ret;
3994
3995 read_lock_bh(&idev->lock);
3996 list_for_each_entry(ifa, &idev->addr_list, if_list) {
3997 ret = cxgb4_clip_get(dev,
3998 (const struct in6_addr *)ifa->addr.s6_addr);
3999 if (ret < 0)
4000 break;
4001 }
4002 read_unlock_bh(&idev->lock);
4003
4004 return ret;
4005}
4006
4007static int update_root_dev_clip(struct net_device *dev)
4008{
4009 struct net_device *root_dev = NULL;
4010 int i, ret = 0;
4011
4012 /* First populate the real net device's IPv6 addresses */
4013 ret = update_dev_clip(dev, dev);
4014 if (ret)
4015 return ret;
4016
4017 /* Parse all bond and vlan devices layered on top of the physical dev */
4018 for (i = 0; i < VLAN_N_VID; i++) {
4019 root_dev = __vlan_find_dev_deep(dev, htons(ETH_P_8021Q), i);
4020 if (!root_dev)
4021 continue;
4022
4023 ret = update_dev_clip(root_dev, dev);
4024 if (ret)
4025 break;
4026 }
4027 return ret;
4028}
4029
4030static void update_clip(const struct adapter *adap)
4031{
4032 int i;
4033 struct net_device *dev;
4034 int ret;
4035
4036 rcu_read_lock();
4037
4038 for (i = 0; i < MAX_NPORTS; i++) {
4039 dev = adap->port[i];
4040 ret = 0;
4041
4042 if (dev)
4043 ret = update_root_dev_clip(dev);
4044
4045 if (ret < 0)
4046 break;
4047 }
4048 rcu_read_unlock();
4049}
4050
b8ff05a9
DM		 4051/**
4052 * cxgb_up - enable the adapter
4053 * @adap: adapter being enabled
4054 *
4055 * Called when the first port is enabled, this function performs the
4056 * actions necessary to make an adapter operational, such as completing
4057 * the initialization of HW modules, and enabling interrupts.
4058 *
4059 * Must be called with the rtnl lock held.
4060 */
4061static int cxgb_up(struct adapter *adap)
4062{
aaefae9b 4063 int err;
b8ff05a9 4064
aaefae9b
DM		 4065 err = setup_sge_queues(adap);
4066 if (err)
4067 goto out;
4068 err = setup_rss(adap);
4069 if (err)
4070 goto freeq;
b8ff05a9
DM		 4071
4072 if (adap->flags & USING_MSIX) {
aaefae9b 4073 name_msix_vecs(adap);
b8ff05a9
DM		 4074 err = request_irq(adap->msix_info[0].vec, t4_nondata_intr, 0,
4075 adap->msix_info[0].desc, adap);
4076 if (err)
4077 goto irq_err;
4078
4079 err = request_msix_queue_irqs(adap);
4080 if (err) {
4081 free_irq(adap->msix_info[0].vec, adap);
4082 goto irq_err;
4083 }
4084 } else {
4085 err = request_irq(adap->pdev->irq, t4_intr_handler(adap),
4086 (adap->flags & USING_MSI) ? 0 : IRQF_SHARED,
b1a3c2b6 4087 adap->port[0]->name, adap);
b8ff05a9
DM		 4088 if (err)
4089 goto irq_err;
4090 }
4091 enable_rx(adap);
4092 t4_sge_start(adap);
4093 t4_intr_enable(adap);
aaefae9b 4094 adap->flags |= FULL_INIT_DONE;
b8ff05a9 4095 notify_ulds(adap, CXGB4_STATE_UP);
01bcca68 4096 update_clip(adap);
b8ff05a9
DM		 4097 out:
4098 return err;
4099 irq_err:
4100 dev_err(adap->pdev_dev, "request_irq failed, err %d\n", err);
aaefae9b
DM		 4101 freeq:
4102 t4_free_sge_resources(adap);
b8ff05a9
DM		 4103 goto out;
4104}
4105
4106static void cxgb_down(struct adapter *adapter)
4107{
4108 t4_intr_disable(adapter);
4109 cancel_work_sync(&adapter->tid_release_task);
881806bc
VP		 4110 cancel_work_sync(&adapter->db_full_task);
4111 cancel_work_sync(&adapter->db_drop_task);
b8ff05a9 4112 adapter->tid_release_task_busy = false;
204dc3c0 4113 adapter->tid_release_head = NULL;
b8ff05a9
DM		 4114
4115 if (adapter->flags & USING_MSIX) {
4116 free_msix_queue_irqs(adapter);
4117 free_irq(adapter->msix_info[0].vec, adapter);
4118 } else
4119 free_irq(adapter->pdev->irq, adapter);
4120 quiesce_rx(adapter);
aaefae9b
DM		 4121 t4_sge_stop(adapter);
4122 t4_free_sge_resources(adapter);
4123 adapter->flags &= ~FULL_INIT_DONE;
b8ff05a9
DM		 4124}
4125
4126/*
4127 * net_device operations
4128 */
4129static int cxgb_open(struct net_device *dev)
4130{
4131 int err;
4132 struct port_info *pi = netdev_priv(dev);
4133 struct adapter *adapter = pi->adapter;
4134
6a3c869a
DM		 4135 netif_carrier_off(dev);
4136
aaefae9b
DM		 4137 if (!(adapter->flags & FULL_INIT_DONE)) {
4138 err = cxgb_up(adapter);
4139 if (err < 0)
4140 return err;
4141 }
b8ff05a9 4142
f68707b8
DM		 4143 err = link_start(dev);
4144 if (!err)
4145 netif_tx_start_all_queues(dev);
4146 return err;
b8ff05a9
DM		 4147}
4148
4149static int cxgb_close(struct net_device *dev)
4150{
b8ff05a9
DM		 4151 struct port_info *pi = netdev_priv(dev);
4152 struct adapter *adapter = pi->adapter;
4153
4154 netif_tx_stop_all_queues(dev);
4155 netif_carrier_off(dev);
060e0c75 4156 return t4_enable_vi(adapter, adapter->fn, pi->viid, false, false);
b8ff05a9
DM		 4157}
4158
f2b7e78d
VP		 4159/* Return an error number if the indicated filter isn't writable ...
4160 */
4161static int writable_filter(struct filter_entry *f)
4162{
4163 if (f->locked)
4164 return -EPERM;
4165 if (f->pending)
4166 return -EBUSY;
4167
4168 return 0;
4169}
4170
4171/* Delete the filter at the specified index (if valid). The checks for all
4172 * the common problems with doing this like the filter being locked, currently
4173 * pending in another operation, etc.
4174 */
4175static int delete_filter(struct adapter *adapter, unsigned int fidx)
4176{
4177 struct filter_entry *f;
4178 int ret;
4179
dca4faeb 4180 if (fidx >= adapter->tids.nftids + adapter->tids.nsftids)
f2b7e78d
VP		 4181 return -EINVAL;
4182
4183 f = &adapter->tids.ftid_tab[fidx];
4184 ret = writable_filter(f);
4185 if (ret)
4186 return ret;
4187 if (f->valid)
4188 return del_filter_wr(adapter, fidx);
4189
4190 return 0;
4191}
4192
dca4faeb 4193int cxgb4_create_server_filter(const struct net_device *dev, unsigned int stid,
793dad94
VP		 4194 __be32 sip, __be16 sport, __be16 vlan,
4195 unsigned int queue, unsigned char port, unsigned char mask)
dca4faeb
VP		 4196{
4197 int ret;
4198 struct filter_entry *f;
4199 struct adapter *adap;
4200 int i;
4201 u8 *val;
4202
4203 adap = netdev2adap(dev);
4204
1cab775c 4205 /* Adjust stid to correct filter index */
470c60c4 4206 stid -= adap->tids.sftid_base;
1cab775c
VP		 4207 stid += adap->tids.nftids;
4208
dca4faeb
VP		 4209 /* Check to make sure the filter requested is writable ...
4210 */
4211 f = &adap->tids.ftid_tab[stid];
4212 ret = writable_filter(f);
4213 if (ret)
4214 return ret;
4215
4216 /* Clear out any old resources being used by the filter before
4217 * we start constructing the new filter.
4218 */
4219 if (f->valid)
4220 clear_filter(adap, f);
4221
4222 /* Clear out filter specifications */
4223 memset(&f->fs, 0, sizeof(struct ch_filter_specification));
4224 f->fs.val.lport = cpu_to_be16(sport);
4225 f->fs.mask.lport = ~0;
4226 val = (u8 *)&sip;
793dad94 4227 if ((val[0] | val[1] | val[2] | val[3]) != 0) {
dca4faeb
VP		 4228 for (i = 0; i < 4; i++) {
4229 f->fs.val.lip[i] = val[i];
4230 f->fs.mask.lip[i] = ~0;
4231 }
dcf7b6f5 4232 if (adap->params.tp.vlan_pri_map & F_PORT) {
793dad94
VP		 4233 f->fs.val.iport = port;
4234 f->fs.mask.iport = mask;
4235 }
4236 }
dca4faeb 4237
dcf7b6f5 4238 if (adap->params.tp.vlan_pri_map & F_PROTOCOL) {
7c89e555
KS		 4239 f->fs.val.proto = IPPROTO_TCP;
4240 f->fs.mask.proto = ~0;
4241 }
4242
dca4faeb
VP		 4243 f->fs.dirsteer = 1;
4244 f->fs.iq = queue;
4245 /* Mark filter as locked */
4246 f->locked = 1;
4247 f->fs.rpttid = 1;
4248
4249 ret = set_filter_wr(adap, stid);
4250 if (ret) {
4251 clear_filter(adap, f);
4252 return ret;
4253 }
4254
4255 return 0;
4256}
4257EXPORT_SYMBOL(cxgb4_create_server_filter);
4258
4259int cxgb4_remove_server_filter(const struct net_device *dev, unsigned int stid,
4260 unsigned int queue, bool ipv6)
4261{
4262 int ret;
4263 struct filter_entry *f;
4264 struct adapter *adap;
4265
4266 adap = netdev2adap(dev);
1cab775c
VP		 4267
4268 /* Adjust stid to correct filter index */
470c60c4 4269 stid -= adap->tids.sftid_base;
1cab775c
VP		 4270 stid += adap->tids.nftids;
4271
dca4faeb
VP		 4272 f = &adap->tids.ftid_tab[stid];
4273 /* Unlock the filter */
4274 f->locked = 0;
4275
4276 ret = delete_filter(adap, stid);
4277 if (ret)
4278 return ret;
4279
4280 return 0;
4281}
4282EXPORT_SYMBOL(cxgb4_remove_server_filter);
4283
f5152c90
DM		 4284static struct rtnl_link_stats64 *cxgb_get_stats(struct net_device *dev,
4285 struct rtnl_link_stats64 *ns)
b8ff05a9
DM		 4286{
4287 struct port_stats stats;
4288 struct port_info *p = netdev_priv(dev);
4289 struct adapter *adapter = p->adapter;
b8ff05a9
DM		 4290
4291 spin_lock(&adapter->stats_lock);
4292 t4_get_port_stats(adapter, p->tx_chan, &stats);
4293 spin_unlock(&adapter->stats_lock);
4294
4295 ns->tx_bytes = stats.tx_octets;
4296 ns->tx_packets = stats.tx_frames;
4297 ns->rx_bytes = stats.rx_octets;
4298 ns->rx_packets = stats.rx_frames;
4299 ns->multicast = stats.rx_mcast_frames;
4300
4301 /* detailed rx_errors */
4302 ns->rx_length_errors = stats.rx_jabber + stats.rx_too_long +
4303 stats.rx_runt;
4304 ns->rx_over_errors = 0;
4305 ns->rx_crc_errors = stats.rx_fcs_err;
4306 ns->rx_frame_errors = stats.rx_symbol_err;
4307 ns->rx_fifo_errors = stats.rx_ovflow0 + stats.rx_ovflow1 +
4308 stats.rx_ovflow2 + stats.rx_ovflow3 +
4309 stats.rx_trunc0 + stats.rx_trunc1 +
4310 stats.rx_trunc2 + stats.rx_trunc3;
4311 ns->rx_missed_errors = 0;
4312
4313 /* detailed tx_errors */
4314 ns->tx_aborted_errors = 0;
4315 ns->tx_carrier_errors = 0;
4316 ns->tx_fifo_errors = 0;
4317 ns->tx_heartbeat_errors = 0;
4318 ns->tx_window_errors = 0;
4319
4320 ns->tx_errors = stats.tx_error_frames;
4321 ns->rx_errors = stats.rx_symbol_err + stats.rx_fcs_err +
4322 ns->rx_length_errors + stats.rx_len_err + ns->rx_fifo_errors;
4323 return ns;
4324}
4325
4326static int cxgb_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
4327{
060e0c75 4328 unsigned int mbox;
b8ff05a9
DM		 4329 int ret = 0, prtad, devad;
4330 struct port_info *pi = netdev_priv(dev);
4331 struct mii_ioctl_data *data = (struct mii_ioctl_data *)&req->ifr_data;
4332
4333 switch (cmd) {
4334 case SIOCGMIIPHY:
4335 if (pi->mdio_addr < 0)
4336 return -EOPNOTSUPP;
4337 data->phy_id = pi->mdio_addr;
4338 break;
4339 case SIOCGMIIREG:
4340 case SIOCSMIIREG:
4341 if (mdio_phy_id_is_c45(data->phy_id)) {
4342 prtad = mdio_phy_id_prtad(data->phy_id);
4343 devad = mdio_phy_id_devad(data->phy_id);
4344 } else if (data->phy_id < 32) {
4345 prtad = data->phy_id;
4346 devad = 0;
4347 data->reg_num &= 0x1f;
4348 } else
4349 return -EINVAL;
4350
060e0c75 4351 mbox = pi->adapter->fn;
b8ff05a9 4352 if (cmd == SIOCGMIIREG)
060e0c75 4353 ret = t4_mdio_rd(pi->adapter, mbox, prtad, devad,
b8ff05a9
DM		 4354 data->reg_num, &data->val_out);
4355 else
060e0c75 4356 ret = t4_mdio_wr(pi->adapter, mbox, prtad, devad,
b8ff05a9
DM		 4357 data->reg_num, data->val_in);
4358 break;
4359 default:
4360 return -EOPNOTSUPP;
4361 }
4362 return ret;
4363}
4364
4365static void cxgb_set_rxmode(struct net_device *dev)
4366{
4367 /* unfortunately we can't return errors to the stack */
4368 set_rxmode(dev, -1, false);
4369}
4370
4371static int cxgb_change_mtu(struct net_device *dev, int new_mtu)
4372{
4373 int ret;
4374 struct port_info *pi = netdev_priv(dev);
4375
4376 if (new_mtu < 81 || new_mtu > MAX_MTU) /* accommodate SACK */
4377 return -EINVAL;
060e0c75
DM		 4378 ret = t4_set_rxmode(pi->adapter, pi->adapter->fn, pi->viid, new_mtu, -1,
4379 -1, -1, -1, true);
b8ff05a9
DM		 4380 if (!ret)
4381 dev->mtu = new_mtu;
4382 return ret;
4383}
4384
4385static int cxgb_set_mac_addr(struct net_device *dev, void *p)
4386{
4387 int ret;
4388 struct sockaddr *addr = p;
4389 struct port_info *pi = netdev_priv(dev);
4390
4391 if (!is_valid_ether_addr(addr->sa_data))
504f9b5a 4392 return -EADDRNOTAVAIL;
b8ff05a9 4393
060e0c75
DM		 4394 ret = t4_change_mac(pi->adapter, pi->adapter->fn, pi->viid,
4395 pi->xact_addr_filt, addr->sa_data, true, true);
b8ff05a9
DM		 4396 if (ret < 0)
4397 return ret;
4398
4399 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
4400 pi->xact_addr_filt = ret;
4401 return 0;
4402}
4403
b8ff05a9
DM		 4404#ifdef CONFIG_NET_POLL_CONTROLLER
4405static void cxgb_netpoll(struct net_device *dev)
4406{
4407 struct port_info *pi = netdev_priv(dev);
4408 struct adapter *adap = pi->adapter;
4409
4410 if (adap->flags & USING_MSIX) {
4411 int i;
4412 struct sge_eth_rxq *rx = &adap->sge.ethrxq[pi->first_qset];
4413
4414 for (i = pi->nqsets; i; i--, rx++)
4415 t4_sge_intr_msix(0, &rx->rspq);
4416 } else
4417 t4_intr_handler(adap)(0, adap);
4418}
4419#endif
4420
4421static const struct net_device_ops cxgb4_netdev_ops = {
4422 .ndo_open = cxgb_open,
4423 .ndo_stop = cxgb_close,
4424 .ndo_start_xmit = t4_eth_xmit,
9be793bf 4425 .ndo_get_stats64 = cxgb_get_stats,
b8ff05a9
DM		 4426 .ndo_set_rx_mode = cxgb_set_rxmode,
4427 .ndo_set_mac_address = cxgb_set_mac_addr,
2ed28baa 4428 .ndo_set_features = cxgb_set_features,
b8ff05a9
DM		 4429 .ndo_validate_addr = eth_validate_addr,
4430 .ndo_do_ioctl = cxgb_ioctl,
4431 .ndo_change_mtu = cxgb_change_mtu,
b8ff05a9
DM		 4432#ifdef CONFIG_NET_POLL_CONTROLLER
4433 .ndo_poll_controller = cxgb_netpoll,
4434#endif
4435};
4436
4437void t4_fatal_err(struct adapter *adap)
4438{
4439 t4_set_reg_field(adap, SGE_CONTROL, GLOBALENABLE, 0);
4440 t4_intr_disable(adap);
4441 dev_alert(adap->pdev_dev, "encountered fatal error, adapter stopped\n");
4442}
4443
4444static void setup_memwin(struct adapter *adap)
4445{
19dd37ba 4446 u32 bar0, mem_win0_base, mem_win1_base, mem_win2_base;
b8ff05a9
DM		 4447
4448 bar0 = pci_resource_start(adap->pdev, 0); /* truncation intentional */
d14807dd 4449 if (is_t4(adap->params.chip)) {
19dd37ba
SR		 4450 mem_win0_base = bar0 + MEMWIN0_BASE;
4451 mem_win1_base = bar0 + MEMWIN1_BASE;
4452 mem_win2_base = bar0 + MEMWIN2_BASE;
4453 } else {
4454 /* For T5, only relative offset inside the PCIe BAR is passed */
4455 mem_win0_base = MEMWIN0_BASE;
4456 mem_win1_base = MEMWIN1_BASE_T5;
4457 mem_win2_base = MEMWIN2_BASE_T5;
4458 }
b8ff05a9 4459 t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 0),
19dd37ba 4460 mem_win0_base | BIR(0) |
b8ff05a9
DM		 4461 WINDOW(ilog2(MEMWIN0_APERTURE) - 10));
4462 t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 1),
19dd37ba 4463 mem_win1_base | BIR(0) |
b8ff05a9
DM		 4464 WINDOW(ilog2(MEMWIN1_APERTURE) - 10));
4465 t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 2),
19dd37ba 4466 mem_win2_base | BIR(0) |
b8ff05a9 4467 WINDOW(ilog2(MEMWIN2_APERTURE) - 10));
636f9d37
VP		 4468}
4469
4470static void setup_memwin_rdma(struct adapter *adap)
4471{
1ae970e0
DM		 4472 if (adap->vres.ocq.size) {
4473 unsigned int start, sz_kb;
4474
4475 start = pci_resource_start(adap->pdev, 2) +
4476 OCQ_WIN_OFFSET(adap->pdev, &adap->vres);
4477 sz_kb = roundup_pow_of_two(adap->vres.ocq.size) >> 10;
4478 t4_write_reg(adap,
4479 PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 3),
4480 start | BIR(1) | WINDOW(ilog2(sz_kb)));
4481 t4_write_reg(adap,
4482 PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_OFFSET, 3),
4483 adap->vres.ocq.start);
4484 t4_read_reg(adap,
4485 PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_OFFSET, 3));
4486 }
b8ff05a9
DM		 4487}
4488
02b5fb8e
DM		 4489static int adap_init1(struct adapter *adap, struct fw_caps_config_cmd *c)
4490{
4491 u32 v;
4492 int ret;
4493
4494 /* get device capabilities */
4495 memset(c, 0, sizeof(*c));
4496 c->op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
4497 FW_CMD_REQUEST | FW_CMD_READ);
ce91a923 4498 c->cfvalid_to_len16 = htonl(FW_LEN16(*c));
060e0c75 4499 ret = t4_wr_mbox(adap, adap->fn, c, sizeof(*c), c);
02b5fb8e
DM		 4500 if (ret < 0)
4501 return ret;
4502
4503 /* select capabilities we'll be using */
4504 if (c->niccaps & htons(FW_CAPS_CONFIG_NIC_VM)) {
4505 if (!vf_acls)
4506 c->niccaps ^= htons(FW_CAPS_CONFIG_NIC_VM);
4507 else
4508 c->niccaps = htons(FW_CAPS_CONFIG_NIC_VM);
4509 } else if (vf_acls) {
4510 dev_err(adap->pdev_dev, "virtualization ACLs not supported");
4511 return ret;
4512 }
4513 c->op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
4514 FW_CMD_REQUEST | FW_CMD_WRITE);
060e0c75 4515 ret = t4_wr_mbox(adap, adap->fn, c, sizeof(*c), NULL);
02b5fb8e
DM		 4516 if (ret < 0)
4517 return ret;
4518
060e0c75 4519 ret = t4_config_glbl_rss(adap, adap->fn,
02b5fb8e
DM		 4520 FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL,
4521 FW_RSS_GLB_CONFIG_CMD_TNLMAPEN |
4522 FW_RSS_GLB_CONFIG_CMD_TNLALLLKP);
4523 if (ret < 0)
4524 return ret;
4525
060e0c75
DM		 4526 ret = t4_cfg_pfvf(adap, adap->fn, adap->fn, 0, MAX_EGRQ, 64, MAX_INGQ,
4527 0, 0, 4, 0xf, 0xf, 16, FW_CMD_CAP_PF, FW_CMD_CAP_PF);
02b5fb8e
DM		 4528 if (ret < 0)
4529 return ret;
4530
4531 t4_sge_init(adap);
4532
02b5fb8e
DM		 4533 /* tweak some settings */
4534 t4_write_reg(adap, TP_SHIFT_CNT, 0x64f8849);
4535 t4_write_reg(adap, ULP_RX_TDDP_PSZ, HPZ0(PAGE_SHIFT - 12));
4536 t4_write_reg(adap, TP_PIO_ADDR, TP_INGRESS_CONFIG);
4537 v = t4_read_reg(adap, TP_PIO_DATA);
4538 t4_write_reg(adap, TP_PIO_DATA, v & ~CSUM_HAS_PSEUDO_HDR);
060e0c75 4539
dca4faeb
VP		 4540 /* first 4 Tx modulation queues point to consecutive Tx channels */
4541 adap->params.tp.tx_modq_map = 0xE4;
4542 t4_write_reg(adap, A_TP_TX_MOD_QUEUE_REQ_MAP,
4543 V_TX_MOD_QUEUE_REQ_MAP(adap->params.tp.tx_modq_map));
4544
4545 /* associate each Tx modulation queue with consecutive Tx channels */
4546 v = 0x84218421;
4547 t4_write_indirect(adap, TP_PIO_ADDR, TP_PIO_DATA,
4548 &v, 1, A_TP_TX_SCHED_HDR);
4549 t4_write_indirect(adap, TP_PIO_ADDR, TP_PIO_DATA,
4550 &v, 1, A_TP_TX_SCHED_FIFO);
4551 t4_write_indirect(adap, TP_PIO_ADDR, TP_PIO_DATA,
4552 &v, 1, A_TP_TX_SCHED_PCMD);
4553
4554#define T4_TX_MODQ_10G_WEIGHT_DEFAULT 16 /* in KB units */
4555 if (is_offload(adap)) {
4556 t4_write_reg(adap, A_TP_TX_MOD_QUEUE_WEIGHT0,
4557 V_TX_MODQ_WEIGHT0(T4_TX_MODQ_10G_WEIGHT_DEFAULT) |
4558 V_TX_MODQ_WEIGHT1(T4_TX_MODQ_10G_WEIGHT_DEFAULT) |
4559 V_TX_MODQ_WEIGHT2(T4_TX_MODQ_10G_WEIGHT_DEFAULT) |
4560 V_TX_MODQ_WEIGHT3(T4_TX_MODQ_10G_WEIGHT_DEFAULT));
4561 t4_write_reg(adap, A_TP_TX_MOD_CHANNEL_WEIGHT,
4562 V_TX_MODQ_WEIGHT0(T4_TX_MODQ_10G_WEIGHT_DEFAULT) |
4563 V_TX_MODQ_WEIGHT1(T4_TX_MODQ_10G_WEIGHT_DEFAULT) |
4564 V_TX_MODQ_WEIGHT2(T4_TX_MODQ_10G_WEIGHT_DEFAULT) |
4565 V_TX_MODQ_WEIGHT3(T4_TX_MODQ_10G_WEIGHT_DEFAULT));
4566 }
4567
060e0c75
DM		 4568 /* get basic stuff going */
4569 return t4_early_init(adap, adap->fn);
02b5fb8e
DM		 4570}
4571
b8ff05a9
DM		 4572/*
4573 * Max # of ATIDs. The absolute HW max is 16K but we keep it lower.
4574 */
4575#define MAX_ATIDS 8192U
4576
636f9d37
VP		 4577/*
4578 * Phase 0 of initialization: contact FW, obtain config, perform basic init.
4579 *
4580 * If the firmware we're dealing with has Configuration File support, then
4581 * we use that to perform all configuration
4582 */
4583
4584/*
4585 * Tweak configuration based on module parameters, etc. Most of these have
4586 * defaults assigned to them by Firmware Configuration Files (if we're using
4587 * them) but need to be explicitly set if we're using hard-coded
4588 * initialization. But even in the case of using Firmware Configuration
4589 * Files, we'd like to expose the ability to change these via module
4590 * parameters so these are essentially common tweaks/settings for
4591 * Configuration Files and hard-coded initialization ...
4592 */
4593static int adap_init0_tweaks(struct adapter *adapter)
4594{
4595 /*
4596 * Fix up various Host-Dependent Parameters like Page Size, Cache
4597 * Line Size, etc. The firmware default is for a 4KB Page Size and
4598 * 64B Cache Line Size ...
4599 */
4600 t4_fixup_host_params(adapter, PAGE_SIZE, L1_CACHE_BYTES);
4601
4602 /*
4603 * Process module parameters which affect early initialization.
4604 */
4605 if (rx_dma_offset != 2 && rx_dma_offset != 0) {
4606 dev_err(&adapter->pdev->dev,
4607 "Ignoring illegal rx_dma_offset=%d, using 2\n",
4608 rx_dma_offset);
4609 rx_dma_offset = 2;
4610 }
4611 t4_set_reg_field(adapter, SGE_CONTROL,
4612 PKTSHIFT_MASK,
4613 PKTSHIFT(rx_dma_offset));
4614
4615 /*
4616 * Don't include the "IP Pseudo Header" in CPL_RX_PKT checksums: Linux
4617 * adds the pseudo header itself.
4618 */
4619 t4_tp_wr_bits_indirect(adapter, TP_INGRESS_CONFIG,
4620 CSUM_HAS_PSEUDO_HDR, 0);
4621
4622 return 0;
4623}
4624
4625/*
4626 * Attempt to initialize the adapter via a Firmware Configuration File.
4627 */
4628static int adap_init0_config(struct adapter *adapter, int reset)
4629{
4630 struct fw_caps_config_cmd caps_cmd;
4631 const struct firmware *cf;
4632 unsigned long mtype = 0, maddr = 0;
4633 u32 finiver, finicsum, cfcsum;
16e47624
HS		 4634 int ret;
4635 int config_issued = 0;
0a57a536 4636 char *fw_config_file, fw_config_file_path[256];
16e47624 4637 char *config_name = NULL;
636f9d37
VP		 4638
4639 /*
4640 * Reset device if necessary.
4641 */
4642 if (reset) {
4643 ret = t4_fw_reset(adapter, adapter->mbox,
4644 PIORSTMODE | PIORST);
4645 if (ret < 0)
4646 goto bye;
4647 }
4648
4649 /*
4650 * If we have a T4 configuration file under /lib/firmware/cxgb4/,
4651 * then use that. Otherwise, use the configuration file stored
4652 * in the adapter flash ...
4653 */
d14807dd 4654 switch (CHELSIO_CHIP_VERSION(adapter->params.chip)) {
0a57a536 4655 case CHELSIO_T4:
16e47624 4656 fw_config_file = FW4_CFNAME;
0a57a536
SR		 4657 break;
4658 case CHELSIO_T5:
4659 fw_config_file = FW5_CFNAME;
4660 break;
4661 default:
4662 dev_err(adapter->pdev_dev, "Device %d is not supported\n",
4663 adapter->pdev->device);
4664 ret = -EINVAL;
4665 goto bye;
4666 }
4667
4668 ret = request_firmware(&cf, fw_config_file, adapter->pdev_dev);
636f9d37 4669 if (ret < 0) {
16e47624 4670 config_name = "On FLASH";
636f9d37
VP		 4671 mtype = FW_MEMTYPE_CF_FLASH;
4672 maddr = t4_flash_cfg_addr(adapter);
4673 } else {
4674 u32 params[7], val[7];
4675
16e47624
HS		 4676 sprintf(fw_config_file_path,
4677 "/lib/firmware/%s", fw_config_file);
4678 config_name = fw_config_file_path;
4679
636f9d37
VP		 4680 if (cf->size >= FLASH_CFG_MAX_SIZE)
4681 ret = -ENOMEM;
4682 else {
4683 params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
4684 FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CF));
4685 ret = t4_query_params(adapter, adapter->mbox,
4686 adapter->fn, 0, 1, params, val);
4687 if (ret == 0) {
4688 /*
4689 * For t4_memory_write() below addresses and
4690 * sizes have to be in terms of multiples of 4
4691 * bytes. So, if the Configuration File isn't
4692 * a multiple of 4 bytes in length we'll have
4693 * to write that out separately since we can't
4694 * guarantee that the bytes following the
4695 * residual byte in the buffer returned by
4696 * request_firmware() are zeroed out ...
4697 */
4698 size_t resid = cf->size & 0x3;
4699 size_t size = cf->size & ~0x3;
4700 __be32 *data = (__be32 *)cf->data;
4701
4702 mtype = FW_PARAMS_PARAM_Y_GET(val[0]);
4703 maddr = FW_PARAMS_PARAM_Z_GET(val[0]) << 16;
4704
4705 ret = t4_memory_write(adapter, mtype, maddr,
4706 size, data);
4707 if (ret == 0 && resid != 0) {
4708 union {
4709 __be32 word;
4710 char buf[4];
4711 } last;
4712 int i;
4713
4714 last.word = data[size >> 2];
4715 for (i = resid; i < 4; i++)
4716 last.buf[i] = 0;
4717 ret = t4_memory_write(adapter, mtype,
4718 maddr + size,
4719 4, &last.word);
4720 }
4721 }
4722 }
4723
4724 release_firmware(cf);
4725 if (ret)
4726 goto bye;
4727 }
4728
4729 /*
4730 * Issue a Capability Configuration command to the firmware to get it
4731 * to parse the Configuration File. We don't use t4_fw_config_file()
4732 * because we want the ability to modify various features after we've
4733 * processed the configuration file ...
4734 */
4735 memset(&caps_cmd, 0, sizeof(caps_cmd));
4736 caps_cmd.op_to_write =
4737 htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
4738 FW_CMD_REQUEST |
4739 FW_CMD_READ);
ce91a923 4740 caps_cmd.cfvalid_to_len16 =
636f9d37
VP		 4741 htonl(FW_CAPS_CONFIG_CMD_CFVALID |
4742 FW_CAPS_CONFIG_CMD_MEMTYPE_CF(mtype) |
4743 FW_CAPS_CONFIG_CMD_MEMADDR64K_CF(maddr >> 16) |
4744 FW_LEN16(caps_cmd));
4745 ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd),
4746 &caps_cmd);
16e47624
HS		 4747
4748 /* If the CAPS_CONFIG failed with an ENOENT (for a Firmware
4749 * Configuration File in FLASH), our last gasp effort is to use the
4750 * Firmware Configuration File which is embedded in the firmware. A
4751 * very few early versions of the firmware didn't have one embedded
4752 * but we can ignore those.
4753 */
4754 if (ret == -ENOENT) {
4755 memset(&caps_cmd, 0, sizeof(caps_cmd));
4756 caps_cmd.op_to_write =
4757 htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
4758 FW_CMD_REQUEST |
4759 FW_CMD_READ);
4760 caps_cmd.cfvalid_to_len16 = htonl(FW_LEN16(caps_cmd));
4761 ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd,
4762 sizeof(caps_cmd), &caps_cmd);
4763 config_name = "Firmware Default";
4764 }
4765
4766 config_issued = 1;
636f9d37
VP		 4767 if (ret < 0)
4768 goto bye;
4769
4770 finiver = ntohl(caps_cmd.finiver);
4771 finicsum = ntohl(caps_cmd.finicsum);
4772 cfcsum = ntohl(caps_cmd.cfcsum);
4773 if (finicsum != cfcsum)
4774 dev_warn(adapter->pdev_dev, "Configuration File checksum "\
4775 "mismatch: [fini] csum=%#x, computed csum=%#x\n",
4776 finicsum, cfcsum);
4777
636f9d37
VP		 4778 /*
4779 * And now tell the firmware to use the configuration we just loaded.
4780 */
4781 caps_cmd.op_to_write =
4782 htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
4783 FW_CMD_REQUEST |
4784 FW_CMD_WRITE);
ce91a923 4785 caps_cmd.cfvalid_to_len16 = htonl(FW_LEN16(caps_cmd));
636f9d37
VP		 4786 ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd),
4787 NULL);
4788 if (ret < 0)
4789 goto bye;
4790
4791 /*
4792 * Tweak configuration based on system architecture, module
4793 * parameters, etc.
4794 */
4795 ret = adap_init0_tweaks(adapter);
4796 if (ret < 0)
4797 goto bye;
4798
4799 /*
4800 * And finally tell the firmware to initialize itself using the
4801 * parameters from the Configuration File.
4802 */
4803 ret = t4_fw_initialize(adapter, adapter->mbox);
4804 if (ret < 0)
4805 goto bye;
4806
4807 /*
4808 * Return successfully and note that we're operating with parameters
4809 * not supplied by the driver, rather than from hard-wired
4810 * initialization constants burried in the driver.
4811 */
4812 adapter->flags |= USING_SOFT_PARAMS;
4813 dev_info(adapter->pdev_dev, "Successfully configured using Firmware "\
16e47624
HS		 4814 "Configuration File \"%s\", version %#x, computed checksum %#x\n",
4815 config_name, finiver, cfcsum);
636f9d37
VP		 4816 return 0;
4817
4818 /*
4819 * Something bad happened. Return the error ... (If the "error"
4820 * is that there's no Configuration File on the adapter we don't
4821 * want to issue a warning since this is fairly common.)
4822 */
4823bye:
16e47624
HS		 4824 if (config_issued && ret != -ENOENT)
4825 dev_warn(adapter->pdev_dev, "\"%s\" configuration file error %d\n",
4826 config_name, -ret);
636f9d37
VP		 4827 return ret;
4828}
4829
13ee15d3
VP		 4830/*
4831 * Attempt to initialize the adapter via hard-coded, driver supplied
4832 * parameters ...
4833 */
4834static int adap_init0_no_config(struct adapter *adapter, int reset)
4835{
4836 struct sge *s = &adapter->sge;
4837 struct fw_caps_config_cmd caps_cmd;
4838 u32 v;
4839 int i, ret;
4840
4841 /*
4842 * Reset device if necessary
4843 */
4844 if (reset) {
4845 ret = t4_fw_reset(adapter, adapter->mbox,
4846 PIORSTMODE | PIORST);
4847 if (ret < 0)
4848 goto bye;
4849 }
4850
4851 /*
4852 * Get device capabilities and select which we'll be using.
4853 */
4854 memset(&caps_cmd, 0, sizeof(caps_cmd));
4855 caps_cmd.op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
4856 FW_CMD_REQUEST | FW_CMD_READ);
ce91a923 4857 caps_cmd.cfvalid_to_len16 = htonl(FW_LEN16(caps_cmd));
13ee15d3
VP		 4858 ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd),
4859 &caps_cmd);
4860 if (ret < 0)
4861 goto bye;
4862
13ee15d3
VP		 4863 if (caps_cmd.niccaps & htons(FW_CAPS_CONFIG_NIC_VM)) {
4864 if (!vf_acls)
4865 caps_cmd.niccaps ^= htons(FW_CAPS_CONFIG_NIC_VM);
4866 else
4867 caps_cmd.niccaps = htons(FW_CAPS_CONFIG_NIC_VM);
4868 } else if (vf_acls) {
4869 dev_err(adapter->pdev_dev, "virtualization ACLs not supported");
4870 goto bye;
4871 }
4872 caps_cmd.op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
4873 FW_CMD_REQUEST | FW_CMD_WRITE);
4874 ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd),
4875 NULL);
4876 if (ret < 0)
4877 goto bye;
4878
4879 /*
4880 * Tweak configuration based on system architecture, module
4881 * parameters, etc.
4882 */
4883 ret = adap_init0_tweaks(adapter);
4884 if (ret < 0)
4885 goto bye;
4886
4887 /*
4888 * Select RSS Global Mode we want to use. We use "Basic Virtual"
4889 * mode which maps each Virtual Interface to its own section of
4890 * the RSS Table and we turn on all map and hash enables ...
4891 */
4892 adapter->flags |= RSS_TNLALLLOOKUP;
4893 ret = t4_config_glbl_rss(adapter, adapter->mbox,
4894 FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL,
4895 FW_RSS_GLB_CONFIG_CMD_TNLMAPEN |
4896 FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ |
4897 ((adapter->flags & RSS_TNLALLLOOKUP) ?
4898 FW_RSS_GLB_CONFIG_CMD_TNLALLLKP : 0));
4899 if (ret < 0)
4900 goto bye;
4901
4902 /*
4903 * Set up our own fundamental resource provisioning ...
4904 */
4905 ret = t4_cfg_pfvf(adapter, adapter->mbox, adapter->fn, 0,
4906 PFRES_NEQ, PFRES_NETHCTRL,
4907 PFRES_NIQFLINT, PFRES_NIQ,
4908 PFRES_TC, PFRES_NVI,
4909 FW_PFVF_CMD_CMASK_MASK,
4910 pfvfres_pmask(adapter, adapter->fn, 0),
4911 PFRES_NEXACTF,
4912 PFRES_R_CAPS, PFRES_WX_CAPS);
4913 if (ret < 0)
4914 goto bye;
4915
4916 /*
4917 * Perform low level SGE initialization. We need to do this before we
4918 * send the firmware the INITIALIZE command because that will cause
4919 * any other PF Drivers which are waiting for the Master
4920 * Initialization to proceed forward.
4921 */
4922 for (i = 0; i < SGE_NTIMERS - 1; i++)
4923 s->timer_val[i] = min(intr_holdoff[i], MAX_SGE_TIMERVAL);
4924 s->timer_val[SGE_NTIMERS - 1] = MAX_SGE_TIMERVAL;
4925 s->counter_val[0] = 1;
4926 for (i = 1; i < SGE_NCOUNTERS; i++)
4927 s->counter_val[i] = min(intr_cnt[i - 1],
4928 THRESHOLD_0_GET(THRESHOLD_0_MASK));
4929 t4_sge_init(adapter);
4930
4931#ifdef CONFIG_PCI_IOV
4932 /*
4933 * Provision resource limits for Virtual Functions. We currently
4934 * grant them all the same static resource limits except for the Port
4935 * Access Rights Mask which we're assigning based on the PF. All of
4936 * the static provisioning stuff for both the PF and VF really needs
4937 * to be managed in a persistent manner for each device which the
4938 * firmware controls.
4939 */
4940 {
4941 int pf, vf;
4942
7d6727cf 4943 for (pf = 0; pf < ARRAY_SIZE(num_vf); pf++) {
13ee15d3
VP		 4944 if (num_vf[pf] <= 0)
4945 continue;
4946
4947 /* VF numbering starts at 1! */
4948 for (vf = 1; vf <= num_vf[pf]; vf++) {
4949 ret = t4_cfg_pfvf(adapter, adapter->mbox,
4950 pf, vf,
4951 VFRES_NEQ, VFRES_NETHCTRL,
4952 VFRES_NIQFLINT, VFRES_NIQ,
4953 VFRES_TC, VFRES_NVI,
1f1e4958 4954 FW_PFVF_CMD_CMASK_MASK,
13ee15d3
VP		 4955 pfvfres_pmask(
4956 adapter, pf, vf),
4957 VFRES_NEXACTF,
4958 VFRES_R_CAPS, VFRES_WX_CAPS);
4959 if (ret < 0)
4960 dev_warn(adapter->pdev_dev,
4961 "failed to "\
4962 "provision pf/vf=%d/%d; "
4963 "err=%d\n", pf, vf, ret);
4964 }
4965 }
4966 }
4967#endif
4968
4969 /*
4970 * Set up the default filter mode. Later we'll want to implement this
4971 * via a firmware command, etc. ... This needs to be done before the
4972 * firmare initialization command ... If the selected set of fields
4973 * isn't equal to the default value, we'll need to make sure that the
4974 * field selections will fit in the 36-bit budget.
4975 */
4976 if (tp_vlan_pri_map != TP_VLAN_PRI_MAP_DEFAULT) {
404d9e3f 4977 int j, bits = 0;
13ee15d3 4978
404d9e3f
VP		 4979 for (j = TP_VLAN_PRI_MAP_FIRST; j <= TP_VLAN_PRI_MAP_LAST; j++)
4980 switch (tp_vlan_pri_map & (1 << j)) {
13ee15d3
VP		 4981 case 0:
4982 /* compressed filter field not enabled */
4983 break;
4984 case FCOE_MASK:
4985 bits += 1;
4986 break;
4987 case PORT_MASK:
4988 bits += 3;
4989 break;
4990 case VNIC_ID_MASK:
4991 bits += 17;
4992 break;
4993 case VLAN_MASK:
4994 bits += 17;
4995 break;
4996 case TOS_MASK:
4997 bits += 8;
4998 break;
4999 case PROTOCOL_MASK:
5000 bits += 8;
5001 break;
5002 case ETHERTYPE_MASK:
5003 bits += 16;
5004 break;
5005 case MACMATCH_MASK:
5006 bits += 9;
5007 break;
5008 case MPSHITTYPE_MASK:
5009 bits += 3;
5010 break;
5011 case FRAGMENTATION_MASK:
5012 bits += 1;
5013 break;
5014 }
5015
5016 if (bits > 36) {
5017 dev_err(adapter->pdev_dev,
5018 "tp_vlan_pri_map=%#x needs %d bits > 36;"\
5019 " using %#x\n", tp_vlan_pri_map, bits,
5020 TP_VLAN_PRI_MAP_DEFAULT);
5021 tp_vlan_pri_map = TP_VLAN_PRI_MAP_DEFAULT;
5022 }
5023 }
5024 v = tp_vlan_pri_map;
5025 t4_write_indirect(adapter, TP_PIO_ADDR, TP_PIO_DATA,
5026 &v, 1, TP_VLAN_PRI_MAP);
5027
5028 /*
5029 * We need Five Tuple Lookup mode to be set in TP_GLOBAL_CONFIG order
5030 * to support any of the compressed filter fields above. Newer
5031 * versions of the firmware do this automatically but it doesn't hurt
5032 * to set it here. Meanwhile, we do _not_ need to set Lookup Every
5033 * Packet in TP_INGRESS_CONFIG to support matching non-TCP packets
5034 * since the firmware automatically turns this on and off when we have
5035 * a non-zero number of filters active (since it does have a
5036 * performance impact).
5037 */
5038 if (tp_vlan_pri_map)
5039 t4_set_reg_field(adapter, TP_GLOBAL_CONFIG,
5040 FIVETUPLELOOKUP_MASK,
5041 FIVETUPLELOOKUP_MASK);
5042
5043 /*
5044 * Tweak some settings.
5045 */
5046 t4_write_reg(adapter, TP_SHIFT_CNT, SYNSHIFTMAX(6) |
5047 RXTSHIFTMAXR1(4) | RXTSHIFTMAXR2(15) |
5048 PERSHIFTBACKOFFMAX(8) | PERSHIFTMAX(8) |
5049 KEEPALIVEMAXR1(4) | KEEPALIVEMAXR2(9));
5050
5051 /*
5052 * Get basic stuff going by issuing the Firmware Initialize command.
5053 * Note that this _must_ be after all PFVF commands ...
5054 */
5055 ret = t4_fw_initialize(adapter, adapter->mbox);
5056 if (ret < 0)
5057 goto bye;
5058
5059 /*
5060 * Return successfully!
5061 */
5062 dev_info(adapter->pdev_dev, "Successfully configured using built-in "\
5063 "driver parameters\n");
5064 return 0;
5065
5066 /*
5067 * Something bad happened. Return the error ...
5068 */
5069bye:
5070 return ret;
5071}
5072
16e47624
HS		 5073static struct fw_info fw_info_array[] = {
5074 {
5075 .chip = CHELSIO_T4,
5076 .fs_name = FW4_CFNAME,
5077 .fw_mod_name = FW4_FNAME,
5078 .fw_hdr = {
5079 .chip = FW_HDR_CHIP_T4,
5080 .fw_ver = __cpu_to_be32(FW_VERSION(T4)),
5081 .intfver_nic = FW_INTFVER(T4, NIC),
5082 .intfver_vnic = FW_INTFVER(T4, VNIC),
5083 .intfver_ri = FW_INTFVER(T4, RI),
5084 .intfver_iscsi = FW_INTFVER(T4, ISCSI),
5085 .intfver_fcoe = FW_INTFVER(T4, FCOE),
5086 },
5087 }, {
5088 .chip = CHELSIO_T5,
5089 .fs_name = FW5_CFNAME,
5090 .fw_mod_name = FW5_FNAME,
5091 .fw_hdr = {
5092 .chip = FW_HDR_CHIP_T5,
5093 .fw_ver = __cpu_to_be32(FW_VERSION(T5)),
5094 .intfver_nic = FW_INTFVER(T5, NIC),
5095 .intfver_vnic = FW_INTFVER(T5, VNIC),
5096 .intfver_ri = FW_INTFVER(T5, RI),
5097 .intfver_iscsi = FW_INTFVER(T5, ISCSI),
5098 .intfver_fcoe = FW_INTFVER(T5, FCOE),
5099 },
5100 }
5101};
5102
5103static struct fw_info *find_fw_info(int chip)
5104{
5105 int i;
5106
5107 for (i = 0; i < ARRAY_SIZE(fw_info_array); i++) {
5108 if (fw_info_array[i].chip == chip)
5109 return &fw_info_array[i];
5110 }
5111 return NULL;
5112}
5113
b8ff05a9
DM		 5114/*
5115 * Phase 0 of initialization: contact FW, obtain config, perform basic init.
5116 */
5117static int adap_init0(struct adapter *adap)
5118{
5119 int ret;
5120 u32 v, port_vec;
5121 enum dev_state state;
5122 u32 params[7], val[7];
9a4da2cd 5123 struct fw_caps_config_cmd caps_cmd;
dcf7b6f5 5124 int reset = 1;
b8ff05a9 5125
636f9d37
VP		 5126 /*
5127 * Contact FW, advertising Master capability (and potentially forcing
5128 * ourselves as the Master PF if our module parameter force_init is
5129 * set).
5130 */
5131 ret = t4_fw_hello(adap, adap->mbox, adap->fn,
5132 force_init ? MASTER_MUST : MASTER_MAY,
5133 &state);
b8ff05a9
DM		 5134 if (ret < 0) {
5135 dev_err(adap->pdev_dev, "could not connect to FW, error %d\n",
5136 ret);
5137 return ret;
5138 }
636f9d37
VP		 5139 if (ret == adap->mbox)
5140 adap->flags |= MASTER_PF;
5141 if (force_init && state == DEV_STATE_INIT)
5142 state = DEV_STATE_UNINIT;
b8ff05a9 5143
636f9d37
VP		 5144 /*
5145 * If we're the Master PF Driver and the device is uninitialized,
5146 * then let's consider upgrading the firmware ... (We always want
5147 * to check the firmware version number in order to A. get it for
5148 * later reporting and B. to warn if the currently loaded firmware
5149 * is excessively mismatched relative to the driver.)
5150 */
16e47624
HS		 5151 t4_get_fw_version(adap, &adap->params.fw_vers);
5152 t4_get_tp_version(adap, &adap->params.tp_vers);
636f9d37 5153 if ((adap->flags & MASTER_PF) && state != DEV_STATE_INIT) {
16e47624
HS		 5154 struct fw_info *fw_info;
5155 struct fw_hdr *card_fw;
5156 const struct firmware *fw;
5157 const u8 *fw_data = NULL;
5158 unsigned int fw_size = 0;
5159
5160 /* This is the firmware whose headers the driver was compiled
5161 * against
5162 */
5163 fw_info = find_fw_info(CHELSIO_CHIP_VERSION(adap->params.chip));
5164 if (fw_info == NULL) {
5165 dev_err(adap->pdev_dev,
5166 "unable to get firmware info for chip %d.\n",
5167 CHELSIO_CHIP_VERSION(adap->params.chip));
5168 return -EINVAL;
636f9d37 5169 }
16e47624
HS		 5170
5171 /* allocate memory to read the header of the firmware on the
5172 * card
5173 */
5174 card_fw = t4_alloc_mem(sizeof(*card_fw));
5175
5176 /* Get FW from from /lib/firmware/ */
5177 ret = request_firmware(&fw, fw_info->fw_mod_name,
5178 adap->pdev_dev);
5179 if (ret < 0) {
5180 dev_err(adap->pdev_dev,
5181 "unable to load firmware image %s, error %d\n",
5182 fw_info->fw_mod_name, ret);
5183 } else {
5184 fw_data = fw->data;
5185 fw_size = fw->size;
5186 }
5187
5188 /* upgrade FW logic */
5189 ret = t4_prep_fw(adap, fw_info, fw_data, fw_size, card_fw,
5190 state, &reset);
5191
5192 /* Cleaning up */
5193 if (fw != NULL)
5194 release_firmware(fw);
5195 t4_free_mem(card_fw);
5196
636f9d37 5197 if (ret < 0)
16e47624 5198 goto bye;
636f9d37 5199 }
b8ff05a9 5200
636f9d37
VP		 5201 /*
5202 * Grab VPD parameters. This should be done after we establish a
5203 * connection to the firmware since some of the VPD parameters
5204 * (notably the Core Clock frequency) are retrieved via requests to
5205 * the firmware. On the other hand, we need these fairly early on
5206 * so we do this right after getting ahold of the firmware.
5207 */
5208 ret = get_vpd_params(adap, &adap->params.vpd);
a0881cab
DM		 5209 if (ret < 0)
5210 goto bye;
a0881cab 5211
636f9d37 5212 /*
13ee15d3
VP		 5213 * Find out what ports are available to us. Note that we need to do
5214 * this before calling adap_init0_no_config() since it needs nports
5215 * and portvec ...
636f9d37
VP		 5216 */
5217 v =
5218 FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
5219 FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_PORTVEC);
5220 ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 1, &v, &port_vec);
a0881cab
DM		 5221 if (ret < 0)
5222 goto bye;
5223
636f9d37
VP		 5224 adap->params.nports = hweight32(port_vec);
5225 adap->params.portvec = port_vec;
5226
5227 /*
5228 * If the firmware is initialized already (and we're not forcing a
5229 * master initialization), note that we're living with existing
5230 * adapter parameters. Otherwise, it's time to try initializing the
5231 * adapter ...
5232 */
5233 if (state == DEV_STATE_INIT) {
5234 dev_info(adap->pdev_dev, "Coming up as %s: "\
5235 "Adapter already initialized\n",
5236 adap->flags & MASTER_PF ? "MASTER" : "SLAVE");
5237 adap->flags |= USING_SOFT_PARAMS;
5238 } else {
5239 dev_info(adap->pdev_dev, "Coming up as MASTER: "\
5240 "Initializing adapter\n");
636f9d37
VP		 5241
5242 /*
5243 * If the firmware doesn't support Configuration
5244 * Files warn user and exit,
5245 */
5246 if (ret < 0)
13ee15d3 5247 dev_warn(adap->pdev_dev, "Firmware doesn't support "
636f9d37 5248 "configuration file.\n");
13ee15d3
VP		 5249 if (force_old_init)
5250 ret = adap_init0_no_config(adap, reset);
636f9d37
VP		 5251 else {
5252 /*
13ee15d3
VP		 5253 * Find out whether we're dealing with a version of
5254 * the firmware which has configuration file support.
636f9d37 5255 */
13ee15d3
VP		 5256 params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
5257 FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CF));
5258 ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 1,
5259 params, val);
636f9d37 5260
13ee15d3
VP		 5261 /*
5262 * If the firmware doesn't support Configuration
5263 * Files, use the old Driver-based, hard-wired
5264 * initialization. Otherwise, try using the
5265 * Configuration File support and fall back to the
5266 * Driver-based initialization if there's no
5267 * Configuration File found.
5268 */
5269 if (ret < 0)
5270 ret = adap_init0_no_config(adap, reset);
5271 else {
5272 /*
5273 * The firmware provides us with a memory
5274 * buffer where we can load a Configuration
5275 * File from the host if we want to override
5276 * the Configuration File in flash.
5277 */
5278
5279 ret = adap_init0_config(adap, reset);
5280 if (ret == -ENOENT) {
5281 dev_info(adap->pdev_dev,
5282 "No Configuration File present "
16e47624 5283 "on adapter. Using hard-wired "
13ee15d3
VP		 5284 "configuration parameters.\n");
5285 ret = adap_init0_no_config(adap, reset);
5286 }
636f9d37
VP		 5287 }
5288 }
5289 if (ret < 0) {
5290 dev_err(adap->pdev_dev,
5291 "could not initialize adapter, error %d\n",
5292 -ret);
5293 goto bye;
5294 }
5295 }
5296
5297 /*
5298 * If we're living with non-hard-coded parameters (either from a
5299 * Firmware Configuration File or values programmed by a different PF
5300 * Driver), give the SGE code a chance to pull in anything that it
5301 * needs ... Note that this must be called after we retrieve our VPD
5302 * parameters in order to know how to convert core ticks to seconds.
5303 */
5304 if (adap->flags & USING_SOFT_PARAMS) {
5305 ret = t4_sge_init(adap);
5306 if (ret < 0)
5307 goto bye;
5308 }
5309
9a4da2cd
VP		 5310 if (is_bypass_device(adap->pdev->device))
5311 adap->params.bypass = 1;
5312
636f9d37
VP		 5313 /*
5314 * Grab some of our basic fundamental operating parameters.
5315 */
5316#define FW_PARAM_DEV(param) \
5317 (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | \
5318 FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_##param))
5319
b8ff05a9 5320#define FW_PARAM_PFVF(param) \
636f9d37
VP		 5321 FW_PARAMS_MNEM(FW_PARAMS_MNEM_PFVF) | \
5322 FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_PFVF_##param)| \
5323 FW_PARAMS_PARAM_Y(0) | \
5324 FW_PARAMS_PARAM_Z(0)
b8ff05a9 5325
636f9d37 5326 params[0] = FW_PARAM_PFVF(EQ_START);
b8ff05a9
DM		 5327 params[1] = FW_PARAM_PFVF(L2T_START);
5328 params[2] = FW_PARAM_PFVF(L2T_END);
5329 params[3] = FW_PARAM_PFVF(FILTER_START);
5330 params[4] = FW_PARAM_PFVF(FILTER_END);
e46dab4d 5331 params[5] = FW_PARAM_PFVF(IQFLINT_START);
636f9d37 5332 ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6, params, val);
b8ff05a9
DM		 5333 if (ret < 0)
5334 goto bye;
636f9d37
VP		 5335 adap->sge.egr_start = val[0];
5336 adap->l2t_start = val[1];
5337 adap->l2t_end = val[2];
b8ff05a9
DM		 5338 adap->tids.ftid_base = val[3];
5339 adap->tids.nftids = val[4] - val[3] + 1;
e46dab4d 5340 adap->sge.ingr_start = val[5];
b8ff05a9 5341
636f9d37
VP		 5342 /* query params related to active filter region */
5343 params[0] = FW_PARAM_PFVF(ACTIVE_FILTER_START);
5344 params[1] = FW_PARAM_PFVF(ACTIVE_FILTER_END);
5345 ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2, params, val);
5346 /* If Active filter size is set we enable establishing
5347 * offload connection through firmware work request
5348 */
5349 if ((val[0] != val[1]) && (ret >= 0)) {
5350 adap->flags |= FW_OFLD_CONN;
5351 adap->tids.aftid_base = val[0];
5352 adap->tids.aftid_end = val[1];
5353 }
5354
b407a4a9
VP		 5355 /* If we're running on newer firmware, let it know that we're
5356 * prepared to deal with encapsulated CPL messages. Older
5357 * firmware won't understand this and we'll just get
5358 * unencapsulated messages ...
5359 */
5360 params[0] = FW_PARAM_PFVF(CPLFW4MSG_ENCAP);
5361 val[0] = 1;
5362 (void) t4_set_params(adap, adap->mbox, adap->fn, 0, 1, params, val);
5363
636f9d37
VP		 5364 /*
5365 * Get device capabilities so we can determine what resources we need
5366 * to manage.
5367 */
5368 memset(&caps_cmd, 0, sizeof(caps_cmd));
9a4da2cd 5369 caps_cmd.op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
13ee15d3 5370 FW_CMD_REQUEST | FW_CMD_READ);
ce91a923 5371 caps_cmd.cfvalid_to_len16 = htonl(FW_LEN16(caps_cmd));
636f9d37
VP		 5372 ret = t4_wr_mbox(adap, adap->mbox, &caps_cmd, sizeof(caps_cmd),
5373 &caps_cmd);
5374 if (ret < 0)
5375 goto bye;
5376
13ee15d3 5377 if (caps_cmd.ofldcaps) {
b8ff05a9
DM		 5378 /* query offload-related parameters */
5379 params[0] = FW_PARAM_DEV(NTID);
5380 params[1] = FW_PARAM_PFVF(SERVER_START);
5381 params[2] = FW_PARAM_PFVF(SERVER_END);
5382 params[3] = FW_PARAM_PFVF(TDDP_START);
5383 params[4] = FW_PARAM_PFVF(TDDP_END);
5384 params[5] = FW_PARAM_DEV(FLOWC_BUFFIFO_SZ);
636f9d37
VP		 5385 ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6,
5386 params, val);
b8ff05a9
DM		 5387 if (ret < 0)
5388 goto bye;
5389 adap->tids.ntids = val[0];
5390 adap->tids.natids = min(adap->tids.ntids / 2, MAX_ATIDS);
5391 adap->tids.stid_base = val[1];
5392 adap->tids.nstids = val[2] - val[1] + 1;
636f9d37
VP		 5393 /*
5394 * Setup server filter region. Divide the availble filter
5395 * region into two parts. Regular filters get 1/3rd and server
5396 * filters get 2/3rd part. This is only enabled if workarond
5397 * path is enabled.
5398 * 1. For regular filters.
5399 * 2. Server filter: This are special filters which are used
5400 * to redirect SYN packets to offload queue.
5401 */
5402 if (adap->flags & FW_OFLD_CONN && !is_bypass(adap)) {
5403 adap->tids.sftid_base = adap->tids.ftid_base +
5404 DIV_ROUND_UP(adap->tids.nftids, 3);
5405 adap->tids.nsftids = adap->tids.nftids -
5406 DIV_ROUND_UP(adap->tids.nftids, 3);
5407 adap->tids.nftids = adap->tids.sftid_base -
5408 adap->tids.ftid_base;
5409 }
b8ff05a9
DM		 5410 adap->vres.ddp.start = val[3];
5411 adap->vres.ddp.size = val[4] - val[3] + 1;
5412 adap->params.ofldq_wr_cred = val[5];
636f9d37 5413
b8ff05a9
DM		 5414 adap->params.offload = 1;
5415 }
636f9d37 5416 if (caps_cmd.rdmacaps) {
b8ff05a9
DM		 5417 params[0] = FW_PARAM_PFVF(STAG_START);
5418 params[1] = FW_PARAM_PFVF(STAG_END);
5419 params[2] = FW_PARAM_PFVF(RQ_START);
5420 params[3] = FW_PARAM_PFVF(RQ_END);
5421 params[4] = FW_PARAM_PFVF(PBL_START);
5422 params[5] = FW_PARAM_PFVF(PBL_END);
636f9d37
VP		 5423 ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6,
5424 params, val);
b8ff05a9
DM		 5425 if (ret < 0)
5426 goto bye;
5427 adap->vres.stag.start = val[0];
5428 adap->vres.stag.size = val[1] - val[0] + 1;
5429 adap->vres.rq.start = val[2];
5430 adap->vres.rq.size = val[3] - val[2] + 1;
5431 adap->vres.pbl.start = val[4];
5432 adap->vres.pbl.size = val[5] - val[4] + 1;
a0881cab
DM		 5433
5434 params[0] = FW_PARAM_PFVF(SQRQ_START);
5435 params[1] = FW_PARAM_PFVF(SQRQ_END);
5436 params[2] = FW_PARAM_PFVF(CQ_START);
5437 params[3] = FW_PARAM_PFVF(CQ_END);
1ae970e0
DM		 5438 params[4] = FW_PARAM_PFVF(OCQ_START);
5439 params[5] = FW_PARAM_PFVF(OCQ_END);
636f9d37 5440 ret = t4_query_params(adap, 0, 0, 0, 6, params, val);
a0881cab
DM		 5441 if (ret < 0)
5442 goto bye;
5443 adap->vres.qp.start = val[0];
5444 adap->vres.qp.size = val[1] - val[0] + 1;
5445 adap->vres.cq.start = val[2];
5446 adap->vres.cq.size = val[3] - val[2] + 1;
1ae970e0
DM		 5447 adap->vres.ocq.start = val[4];
5448 adap->vres.ocq.size = val[5] - val[4] + 1;
b8ff05a9 5449 }
636f9d37 5450 if (caps_cmd.iscsicaps) {
b8ff05a9
DM		 5451 params[0] = FW_PARAM_PFVF(ISCSI_START);
5452 params[1] = FW_PARAM_PFVF(ISCSI_END);
636f9d37
VP		 5453 ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2,
5454 params, val);
b8ff05a9
DM		 5455 if (ret < 0)
5456 goto bye;
5457 adap->vres.iscsi.start = val[0];
5458 adap->vres.iscsi.size = val[1] - val[0] + 1;
5459 }
5460#undef FW_PARAM_PFVF
5461#undef FW_PARAM_DEV
5462
636f9d37
VP		 5463 /*
5464 * These are finalized by FW initialization, load their values now.
5465 */
b8ff05a9
DM		 5466 t4_read_mtu_tbl(adap, adap->params.mtus, NULL);
5467 t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd,
5468 adap->params.b_wnd);
7ee9ff94 5469
dcf7b6f5 5470 t4_init_tp_params(adap);
636f9d37 5471 adap->flags |= FW_OK;
b8ff05a9
DM		 5472 return 0;
5473
5474 /*
636f9d37
VP		 5475 * Something bad happened. If a command timed out or failed with EIO
5476 * FW does not operate within its spec or something catastrophic
5477 * happened to HW/FW, stop issuing commands.
b8ff05a9 5478 */
636f9d37
VP		 5479bye:
5480 if (ret != -ETIMEDOUT && ret != -EIO)
5481 t4_fw_bye(adap, adap->mbox);
b8ff05a9
DM		 5482 return ret;
5483}
5484
204dc3c0
DM		 5485/* EEH callbacks */
5486
5487static pci_ers_result_t eeh_err_detected(struct pci_dev *pdev,
5488 pci_channel_state_t state)
5489{
5490 int i;
5491 struct adapter *adap = pci_get_drvdata(pdev);
5492
5493 if (!adap)
5494 goto out;
5495
5496 rtnl_lock();
5497 adap->flags &= ~FW_OK;
5498 notify_ulds(adap, CXGB4_STATE_START_RECOVERY);
5499 for_each_port(adap, i) {
5500 struct net_device *dev = adap->port[i];
5501
5502 netif_device_detach(dev);
5503 netif_carrier_off(dev);
5504 }
5505 if (adap->flags & FULL_INIT_DONE)
5506 cxgb_down(adap);
5507 rtnl_unlock();
144be3d9
GS		 5508 if ((adap->flags & DEV_ENABLED)) {
5509 pci_disable_device(pdev);
5510 adap->flags &= ~DEV_ENABLED;
5511 }
204dc3c0
DM		 5512out: return state == pci_channel_io_perm_failure ?
5513 PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET;
5514}
5515
5516static pci_ers_result_t eeh_slot_reset(struct pci_dev *pdev)
5517{
5518 int i, ret;
5519 struct fw_caps_config_cmd c;
5520 struct adapter *adap = pci_get_drvdata(pdev);
5521
5522 if (!adap) {
5523 pci_restore_state(pdev);
5524 pci_save_state(pdev);
5525 return PCI_ERS_RESULT_RECOVERED;
5526 }
5527
144be3d9
GS		 5528 if (!(adap->flags & DEV_ENABLED)) {
5529 if (pci_enable_device(pdev)) {
5530 dev_err(&pdev->dev, "Cannot reenable PCI "
5531 "device after reset\n");
5532 return PCI_ERS_RESULT_DISCONNECT;
5533 }
5534 adap->flags |= DEV_ENABLED;
204dc3c0
DM		 5535 }
5536
5537 pci_set_master(pdev);
5538 pci_restore_state(pdev);
5539 pci_save_state(pdev);
5540 pci_cleanup_aer_uncorrect_error_status(pdev);
5541
5542 if (t4_wait_dev_ready(adap) < 0)
5543 return PCI_ERS_RESULT_DISCONNECT;
777c2300 5544 if (t4_fw_hello(adap, adap->fn, adap->fn, MASTER_MUST, NULL) < 0)
204dc3c0
DM		 5545 return PCI_ERS_RESULT_DISCONNECT;
5546 adap->flags |= FW_OK;
5547 if (adap_init1(adap, &c))
5548 return PCI_ERS_RESULT_DISCONNECT;
5549
5550 for_each_port(adap, i) {
5551 struct port_info *p = adap2pinfo(adap, i);
5552
060e0c75
DM		 5553 ret = t4_alloc_vi(adap, adap->fn, p->tx_chan, adap->fn, 0, 1,
5554 NULL, NULL);
204dc3c0
DM		 5555 if (ret < 0)
5556 return PCI_ERS_RESULT_DISCONNECT;
5557 p->viid = ret;
5558 p->xact_addr_filt = -1;
5559 }
5560
5561 t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd,
5562 adap->params.b_wnd);
1ae970e0 5563 setup_memwin(adap);
204dc3c0
DM		 5564 if (cxgb_up(adap))
5565 return PCI_ERS_RESULT_DISCONNECT;
5566 return PCI_ERS_RESULT_RECOVERED;
5567}
5568
5569static void eeh_resume(struct pci_dev *pdev)
5570{
5571 int i;
5572 struct adapter *adap = pci_get_drvdata(pdev);
5573
5574 if (!adap)
5575 return;
5576
5577 rtnl_lock();
5578 for_each_port(adap, i) {
5579 struct net_device *dev = adap->port[i];
5580
5581 if (netif_running(dev)) {
5582 link_start(dev);
5583 cxgb_set_rxmode(dev);
5584 }
5585 netif_device_attach(dev);
5586 }
5587 rtnl_unlock();
5588}
5589
3646f0e5 5590static const struct pci_error_handlers cxgb4_eeh = {
204dc3c0
DM		 5591 .error_detected = eeh_err_detected,
5592 .slot_reset = eeh_slot_reset,
5593 .resume = eeh_resume,
5594};
5595
b8ff05a9
DM		 5596static inline bool is_10g_port(const struct link_config *lc)
5597{
5598 return (lc->supported & FW_PORT_CAP_SPEED_10G) != 0;
5599}
5600
5601static inline void init_rspq(struct sge_rspq *q, u8 timer_idx, u8 pkt_cnt_idx,
5602 unsigned int size, unsigned int iqe_size)
5603{
5604 q->intr_params = QINTR_TIMER_IDX(timer_idx) |
5605 (pkt_cnt_idx < SGE_NCOUNTERS ? QINTR_CNT_EN : 0);
5606 q->pktcnt_idx = pkt_cnt_idx < SGE_NCOUNTERS ? pkt_cnt_idx : 0;
5607 q->iqe_len = iqe_size;
5608 q->size = size;
5609}
5610
5611/*
5612 * Perform default configuration of DMA queues depending on the number and type
5613 * of ports we found and the number of available CPUs. Most settings can be
5614 * modified by the admin prior to actual use.
5615 */
91744948 5616static void cfg_queues(struct adapter *adap)
b8ff05a9
DM		 5617{
5618 struct sge *s = &adap->sge;
5619 int i, q10g = 0, n10g = 0, qidx = 0;
5620
5621 for_each_port(adap, i)
5622 n10g += is_10g_port(&adap2pinfo(adap, i)->link_cfg);
5623
5624 /*
5625 * We default to 1 queue per non-10G port and up to # of cores queues
5626 * per 10G port.
5627 */
5628 if (n10g)
5629 q10g = (MAX_ETH_QSETS - (adap->params.nports - n10g)) / n10g;
5952dde7
YM		 5630 if (q10g > netif_get_num_default_rss_queues())
5631 q10g = netif_get_num_default_rss_queues();
b8ff05a9
DM		 5632
5633 for_each_port(adap, i) {
5634 struct port_info *pi = adap2pinfo(adap, i);
5635
5636 pi->first_qset = qidx;
5637 pi->nqsets = is_10g_port(&pi->link_cfg) ? q10g : 1;
5638 qidx += pi->nqsets;
5639 }
5640
5641 s->ethqsets = qidx;
5642 s->max_ethqsets = qidx; /* MSI-X may lower it later */
5643
5644 if (is_offload(adap)) {
5645 /*
5646 * For offload we use 1 queue/channel if all ports are up to 1G,
5647 * otherwise we divide all available queues amongst the channels
5648 * capped by the number of available cores.
5649 */
5650 if (n10g) {
5651 i = min_t(int, ARRAY_SIZE(s->ofldrxq),
5652 num_online_cpus());
5653 s->ofldqsets = roundup(i, adap->params.nports);
5654 } else
5655 s->ofldqsets = adap->params.nports;
5656 /* For RDMA one Rx queue per channel suffices */
5657 s->rdmaqs = adap->params.nports;
5658 }
5659
5660 for (i = 0; i < ARRAY_SIZE(s->ethrxq); i++) {
5661 struct sge_eth_rxq *r = &s->ethrxq[i];
5662
5663 init_rspq(&r->rspq, 0, 0, 1024, 64);
5664 r->fl.size = 72;
5665 }
5666
5667 for (i = 0; i < ARRAY_SIZE(s->ethtxq); i++)
5668 s->ethtxq[i].q.size = 1024;
5669
5670 for (i = 0; i < ARRAY_SIZE(s->ctrlq); i++)
5671 s->ctrlq[i].q.size = 512;
5672
5673 for (i = 0; i < ARRAY_SIZE(s->ofldtxq); i++)
5674 s->ofldtxq[i].q.size = 1024;
5675
5676 for (i = 0; i < ARRAY_SIZE(s->ofldrxq); i++) {
5677 struct sge_ofld_rxq *r = &s->ofldrxq[i];
5678
5679 init_rspq(&r->rspq, 0, 0, 1024, 64);
5680 r->rspq.uld = CXGB4_ULD_ISCSI;
5681 r->fl.size = 72;
5682 }
5683
5684 for (i = 0; i < ARRAY_SIZE(s->rdmarxq); i++) {
5685 struct sge_ofld_rxq *r = &s->rdmarxq[i];
5686
5687 init_rspq(&r->rspq, 0, 0, 511, 64);
5688 r->rspq.uld = CXGB4_ULD_RDMA;
5689 r->fl.size = 72;
5690 }
5691
5692 init_rspq(&s->fw_evtq, 6, 0, 512, 64);
5693 init_rspq(&s->intrq, 6, 0, 2 * MAX_INGQ, 64);
5694}
5695
5696/*
5697 * Reduce the number of Ethernet queues across all ports to at most n.
5698 * n provides at least one queue per port.
5699 */
91744948 5700static void reduce_ethqs(struct adapter *adap, int n)
b8ff05a9
DM		 5701{
5702 int i;
5703 struct port_info *pi;
5704
5705 while (n < adap->sge.ethqsets)
5706 for_each_port(adap, i) {
5707 pi = adap2pinfo(adap, i);
5708 if (pi->nqsets > 1) {
5709 pi->nqsets--;
5710 adap->sge.ethqsets--;
5711 if (adap->sge.ethqsets <= n)
5712 break;
5713 }
5714 }
5715
5716 n = 0;
5717 for_each_port(adap, i) {
5718 pi = adap2pinfo(adap, i);
5719 pi->first_qset = n;
5720 n += pi->nqsets;
5721 }
5722}
5723
5724/* 2 MSI-X vectors needed for the FW queue and non-data interrupts */
5725#define EXTRA_VECS 2
5726
91744948 5727static int enable_msix(struct adapter *adap)
b8ff05a9
DM		 5728{
5729 int ofld_need = 0;
5730 int i, err, want, need;
5731 struct sge *s = &adap->sge;
5732 unsigned int nchan = adap->params.nports;
5733 struct msix_entry entries[MAX_INGQ + 1];
5734
5735 for (i = 0; i < ARRAY_SIZE(entries); ++i)
5736 entries[i].entry = i;
5737
5738 want = s->max_ethqsets + EXTRA_VECS;
5739 if (is_offload(adap)) {
5740 want += s->rdmaqs + s->ofldqsets;
5741 /* need nchan for each possible ULD */
5742 ofld_need = 2 * nchan;
5743 }
5744 need = adap->params.nports + EXTRA_VECS + ofld_need;
5745
5746 while ((err = pci_enable_msix(adap->pdev, entries, want)) >= need)
5747 want = err;
5748
5749 if (!err) {
5750 /*
5751 * Distribute available vectors to the various queue groups.
5752 * Every group gets its minimum requirement and NIC gets top
5753 * priority for leftovers.
5754 */
5755 i = want - EXTRA_VECS - ofld_need;
5756 if (i < s->max_ethqsets) {
5757 s->max_ethqsets = i;
5758 if (i < s->ethqsets)
5759 reduce_ethqs(adap, i);
5760 }
5761 if (is_offload(adap)) {
5762 i = want - EXTRA_VECS - s->max_ethqsets;
5763 i -= ofld_need - nchan;
5764 s->ofldqsets = (i / nchan) * nchan; /* round down */
5765 }
5766 for (i = 0; i < want; ++i)
5767 adap->msix_info[i].vec = entries[i].vector;
5768 } else if (err > 0)
5769 dev_info(adap->pdev_dev,
5770 "only %d MSI-X vectors left, not using MSI-X\n", err);
5771 return err;
5772}
5773
5774#undef EXTRA_VECS
5775
91744948 5776static int init_rss(struct adapter *adap)
671b0060
DM		 5777{
5778 unsigned int i, j;
5779
5780 for_each_port(adap, i) {
5781 struct port_info *pi = adap2pinfo(adap, i);
5782
5783 pi->rss = kcalloc(pi->rss_size, sizeof(u16), GFP_KERNEL);
5784 if (!pi->rss)
5785 return -ENOMEM;
5786 for (j = 0; j < pi->rss_size; j++)
278bc429 5787 pi->rss[j] = ethtool_rxfh_indir_default(j, pi->nqsets);
671b0060
DM		 5788 }
5789 return 0;
5790}
5791
91744948 5792static void print_port_info(const struct net_device *dev)
b8ff05a9
DM		 5793{
5794 static const char *base[] = {
a0881cab 5795 "R XFI", "R XAUI", "T SGMII", "T XFI", "T XAUI", "KX4", "CX4",
7d5e77aa 5796 "KX", "KR", "R SFP+", "KR/KX", "KR/KX/KX4"
b8ff05a9
DM		 5797 };
5798
b8ff05a9 5799 char buf[80];
118969ed 5800 char *bufp = buf;
f1a051b9 5801 const char *spd = "";
118969ed
DM		 5802 const struct port_info *pi = netdev_priv(dev);
5803 const struct adapter *adap = pi->adapter;
f1a051b9
DM		 5804
5805 if (adap->params.pci.speed == PCI_EXP_LNKSTA_CLS_2_5GB)
5806 spd = " 2.5 GT/s";
5807 else if (adap->params.pci.speed == PCI_EXP_LNKSTA_CLS_5_0GB)
5808 spd = " 5 GT/s";
b8ff05a9 5809
118969ed
DM		 5810 if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_100M)
5811 bufp += sprintf(bufp, "100/");
5812 if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_1G)
5813 bufp += sprintf(bufp, "1000/");
5814 if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_10G)
5815 bufp += sprintf(bufp, "10G/");
5816 if (bufp != buf)
5817 --bufp;
5818 sprintf(bufp, "BASE-%s", base[pi->port_type]);
5819
5820 netdev_info(dev, "Chelsio %s rev %d %s %sNIC PCIe x%d%s%s\n",
0a57a536 5821 adap->params.vpd.id,
d14807dd 5822 CHELSIO_CHIP_RELEASE(adap->params.chip), buf,
118969ed
DM		 5823 is_offload(adap) ? "R" : "", adap->params.pci.width, spd,
5824 (adap->flags & USING_MSIX) ? " MSI-X" :
5825 (adap->flags & USING_MSI) ? " MSI" : "");
5826 netdev_info(dev, "S/N: %s, E/C: %s\n",
5827 adap->params.vpd.sn, adap->params.vpd.ec);
b8ff05a9
DM		 5828}
5829
91744948 5830static void enable_pcie_relaxed_ordering(struct pci_dev *dev)
ef306b50 5831{
e5c8ae5f 5832 pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_RELAX_EN);
ef306b50
DM		 5833}
5834
06546391
DM		 5835/*
5836 * Free the following resources:
5837 * - memory used for tables
5838 * - MSI/MSI-X
5839 * - net devices
5840 * - resources FW is holding for us
5841 */
5842static void free_some_resources(struct adapter *adapter)
5843{
5844 unsigned int i;
5845
5846 t4_free_mem(adapter->l2t);
5847 t4_free_mem(adapter->tids.tid_tab);
5848 disable_msi(adapter);
5849
5850 for_each_port(adapter, i)
671b0060
DM		 5851 if (adapter->port[i]) {
5852 kfree(adap2pinfo(adapter, i)->rss);
06546391 5853 free_netdev(adapter->port[i]);
671b0060 5854 }
06546391 5855 if (adapter->flags & FW_OK)
060e0c75 5856 t4_fw_bye(adapter, adapter->fn);
06546391
DM		 5857}
5858
2ed28baa 5859#define TSO_FLAGS (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN)
35d35682 5860#define VLAN_FEAT (NETIF_F_SG | NETIF_F_IP_CSUM | TSO_FLAGS | \
b8ff05a9 5861 NETIF_F_IPV6_CSUM | NETIF_F_HIGHDMA)
22adfe0a 5862#define SEGMENT_SIZE 128
b8ff05a9 5863
1dd06ae8 5864static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
b8ff05a9 5865{
22adfe0a 5866 int func, i, err, s_qpp, qpp, num_seg;
b8ff05a9 5867 struct port_info *pi;
c8f44aff 5868 bool highdma = false;
b8ff05a9
DM		 5869 struct adapter *adapter = NULL;
5870
5871 printk_once(KERN_INFO "%s - version %s\n", DRV_DESC, DRV_VERSION);
5872
5873 err = pci_request_regions(pdev, KBUILD_MODNAME);
5874 if (err) {
5875 /* Just info, some other driver may have claimed the device. */
5876 dev_info(&pdev->dev, "cannot obtain PCI resources\n");
5877 return err;
5878 }
5879
060e0c75 5880 /* We control everything through one PF */
b8ff05a9 5881 func = PCI_FUNC(pdev->devfn);
060e0c75 5882 if (func != ent->driver_data) {
204dc3c0 5883 pci_save_state(pdev); /* to restore SR-IOV later */
b8ff05a9 5884 goto sriov;
204dc3c0 5885 }
b8ff05a9
DM		 5886
5887 err = pci_enable_device(pdev);
5888 if (err) {
5889 dev_err(&pdev->dev, "cannot enable PCI device\n");
5890 goto out_release_regions;
5891 }
5892
5893 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
c8f44aff 5894 highdma = true;
b8ff05a9
DM		 5895 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
5896 if (err) {
5897 dev_err(&pdev->dev, "unable to obtain 64-bit DMA for "
5898 "coherent allocations\n");
5899 goto out_disable_device;
5900 }
5901 } else {
5902 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
5903 if (err) {
5904 dev_err(&pdev->dev, "no usable DMA configuration\n");
5905 goto out_disable_device;
5906 }
5907 }
5908
5909 pci_enable_pcie_error_reporting(pdev);
ef306b50 5910 enable_pcie_relaxed_ordering(pdev);
b8ff05a9
DM		 5911 pci_set_master(pdev);
5912 pci_save_state(pdev);
5913
5914 adapter = kzalloc(sizeof(*adapter), GFP_KERNEL);
5915 if (!adapter) {
5916 err = -ENOMEM;
5917 goto out_disable_device;
5918 }
5919
144be3d9
GS		 5920 /* PCI device has been enabled */
5921 adapter->flags |= DEV_ENABLED;
5922
b8ff05a9
DM		 5923 adapter->regs = pci_ioremap_bar(pdev, 0);
5924 if (!adapter->regs) {
5925 dev_err(&pdev->dev, "cannot map device registers\n");
5926 err = -ENOMEM;
5927 goto out_free_adapter;
5928 }
5929
5930 adapter->pdev = pdev;
5931 adapter->pdev_dev = &pdev->dev;
3069ee9b 5932 adapter->mbox = func;
060e0c75 5933 adapter->fn = func;
b8ff05a9
DM		 5934 adapter->msg_enable = dflt_msg_enable;
5935 memset(adapter->chan_map, 0xff, sizeof(adapter->chan_map));
5936
5937 spin_lock_init(&adapter->stats_lock);
5938 spin_lock_init(&adapter->tid_release_lock);
5939
5940 INIT_WORK(&adapter->tid_release_task, process_tid_release_list);
881806bc
VP		 5941 INIT_WORK(&adapter->db_full_task, process_db_full);
5942 INIT_WORK(&adapter->db_drop_task, process_db_drop);
b8ff05a9
DM		 5943
5944 err = t4_prep_adapter(adapter);
5945 if (err)
22adfe0a
SR		 5946 goto out_unmap_bar0;
5947
d14807dd 5948 if (!is_t4(adapter->params.chip)) {
22adfe0a
SR		 5949 s_qpp = QUEUESPERPAGEPF1 * adapter->fn;
5950 qpp = 1 << QUEUESPERPAGEPF0_GET(t4_read_reg(adapter,
5951 SGE_EGRESS_QUEUES_PER_PAGE_PF) >> s_qpp);
5952 num_seg = PAGE_SIZE / SEGMENT_SIZE;
5953
5954 /* Each segment size is 128B. Write coalescing is enabled only
5955 * when SGE_EGRESS_QUEUES_PER_PAGE_PF reg value for the
5956 * queue is less no of segments that can be accommodated in
5957 * a page size.
5958 */
5959 if (qpp > num_seg) {
5960 dev_err(&pdev->dev,
5961 "Incorrect number of egress queues per page\n");
5962 err = -EINVAL;
5963 goto out_unmap_bar0;
5964 }
5965 adapter->bar2 = ioremap_wc(pci_resource_start(pdev, 2),
5966 pci_resource_len(pdev, 2));
5967 if (!adapter->bar2) {
5968 dev_err(&pdev->dev, "cannot map device bar2 region\n");
5969 err = -ENOMEM;
5970 goto out_unmap_bar0;
5971 }
5972 }
5973
636f9d37 5974 setup_memwin(adapter);
b8ff05a9 5975 err = adap_init0(adapter);
636f9d37 5976 setup_memwin_rdma(adapter);
b8ff05a9
DM		 5977 if (err)
5978 goto out_unmap_bar;
5979
5980 for_each_port(adapter, i) {
5981 struct net_device *netdev;
5982
5983 netdev = alloc_etherdev_mq(sizeof(struct port_info),
5984 MAX_ETH_QSETS);
5985 if (!netdev) {
5986 err = -ENOMEM;
5987 goto out_free_dev;
5988 }
5989
5990 SET_NETDEV_DEV(netdev, &pdev->dev);
5991
5992 adapter->port[i] = netdev;
5993 pi = netdev_priv(netdev);
5994 pi->adapter = adapter;
5995 pi->xact_addr_filt = -1;
b8ff05a9 5996 pi->port_id = i;
b8ff05a9
DM		 5997 netdev->irq = pdev->irq;
5998
2ed28baa
MM		 5999 netdev->hw_features = NETIF_F_SG | TSO_FLAGS |
6000 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
6001 NETIF_F_RXCSUM | NETIF_F_RXHASH |
f646968f 6002 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
c8f44aff
MM		 6003 if (highdma)
6004 netdev->hw_features |= NETIF_F_HIGHDMA;
6005 netdev->features |= netdev->hw_features;
b8ff05a9
DM		 6006 netdev->vlan_features = netdev->features & VLAN_FEAT;
6007
01789349
JP		 6008 netdev->priv_flags |= IFF_UNICAST_FLT;
6009
b8ff05a9
DM		 6010 netdev->netdev_ops = &cxgb4_netdev_ops;
6011 SET_ETHTOOL_OPS(netdev, &cxgb_ethtool_ops);
6012 }
6013
6014 pci_set_drvdata(pdev, adapter);
6015
6016 if (adapter->flags & FW_OK) {
060e0c75 6017 err = t4_port_init(adapter, func, func, 0);
b8ff05a9
DM		 6018 if (err)
6019 goto out_free_dev;
6020 }
6021
6022 /*
6023 * Configure queues and allocate tables now, they can be needed as
6024 * soon as the first register_netdev completes.
6025 */
6026 cfg_queues(adapter);
6027
6028 adapter->l2t = t4_init_l2t();
6029 if (!adapter->l2t) {
6030 /* We tolerate a lack of L2T, giving up some functionality */
6031 dev_warn(&pdev->dev, "could not allocate L2T, continuing\n");
6032 adapter->params.offload = 0;
6033 }
6034
6035 if (is_offload(adapter) && tid_init(&adapter->tids) < 0) {
6036 dev_warn(&pdev->dev, "could not allocate TID table, "
6037 "continuing\n");
6038 adapter->params.offload = 0;
6039 }
6040
f7cabcdd
DM		 6041 /* See what interrupts we'll be using */
6042 if (msi > 1 && enable_msix(adapter) == 0)
6043 adapter->flags |= USING_MSIX;
6044 else if (msi > 0 && pci_enable_msi(pdev) == 0)
6045 adapter->flags |= USING_MSI;
6046
671b0060
DM		 6047 err = init_rss(adapter);
6048 if (err)
6049 goto out_free_dev;
6050
b8ff05a9
DM		 6051 /*
6052 * The card is now ready to go. If any errors occur during device
6053 * registration we do not fail the whole card but rather proceed only
6054 * with the ports we manage to register successfully. However we must
6055 * register at least one net device.
6056 */
6057 for_each_port(adapter, i) {
a57cabe0
DM		 6058 pi = adap2pinfo(adapter, i);
6059 netif_set_real_num_tx_queues(adapter->port[i], pi->nqsets);
6060 netif_set_real_num_rx_queues(adapter->port[i], pi->nqsets);
6061
b8ff05a9
DM		 6062 err = register_netdev(adapter->port[i]);
6063 if (err)
b1a3c2b6 6064 break;
b1a3c2b6
DM		 6065 adapter->chan_map[pi->tx_chan] = i;
6066 print_port_info(adapter->port[i]);
b8ff05a9 6067 }
b1a3c2b6 6068 if (i == 0) {
b8ff05a9
DM		 6069 dev_err(&pdev->dev, "could not register any net devices\n");
6070 goto out_free_dev;
6071 }
b1a3c2b6
DM		 6072 if (err) {
6073 dev_warn(&pdev->dev, "only %d net devices registered\n", i);
6074 err = 0;
6403eab1 6075 }
b8ff05a9
DM		 6076
6077 if (cxgb4_debugfs_root) {
6078 adapter->debugfs_root = debugfs_create_dir(pci_name(pdev),
6079 cxgb4_debugfs_root);
6080 setup_debugfs(adapter);
6081 }
6082
6482aa7c
DLR		 6083 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
6084 pdev->needs_freset = 1;
6085
b8ff05a9
DM		 6086 if (is_offload(adapter))
6087 attach_ulds(adapter);
6088
b8ff05a9
DM		 6089sriov:
6090#ifdef CONFIG_PCI_IOV
7d6727cf 6091 if (func < ARRAY_SIZE(num_vf) && num_vf[func] > 0)
b8ff05a9
DM		 6092 if (pci_enable_sriov(pdev, num_vf[func]) == 0)
6093 dev_info(&pdev->dev,
6094 "instantiated %u virtual functions\n",
6095 num_vf[func]);
6096#endif
6097 return 0;
6098
6099 out_free_dev:
06546391 6100 free_some_resources(adapter);
b8ff05a9 6101 out_unmap_bar:
d14807dd 6102 if (!is_t4(adapter->params.chip))
22adfe0a
SR		 6103 iounmap(adapter->bar2);
6104 out_unmap_bar0:
b8ff05a9
DM		 6105 iounmap(adapter->regs);
6106 out_free_adapter:
6107 kfree(adapter);
6108 out_disable_device:
6109 pci_disable_pcie_error_reporting(pdev);
6110 pci_disable_device(pdev);
6111 out_release_regions:
6112 pci_release_regions(pdev);
b8ff05a9
DM		 6113 return err;
6114}
6115
91744948 6116static void remove_one(struct pci_dev *pdev)
b8ff05a9
DM		 6117{
6118 struct adapter *adapter = pci_get_drvdata(pdev);
6119
636f9d37 6120#ifdef CONFIG_PCI_IOV
b8ff05a9
DM		 6121 pci_disable_sriov(pdev);
6122
636f9d37
VP		 6123#endif
6124
b8ff05a9
DM		 6125 if (adapter) {
6126 int i;
6127
6128 if (is_offload(adapter))
6129 detach_ulds(adapter);
6130
6131 for_each_port(adapter, i)
8f3a7676 6132 if (adapter->port[i]->reg_state == NETREG_REGISTERED)
b8ff05a9
DM		 6133 unregister_netdev(adapter->port[i]);
6134
6135 if (adapter->debugfs_root)
6136 debugfs_remove_recursive(adapter->debugfs_root);
6137
f2b7e78d
VP		 6138 /* If we allocated filters, free up state associated with any
6139 * valid filters ...
6140 */
6141 if (adapter->tids.ftid_tab) {
6142 struct filter_entry *f = &adapter->tids.ftid_tab[0];
dca4faeb
VP		 6143 for (i = 0; i < (adapter->tids.nftids +
6144 adapter->tids.nsftids); i++, f++)
f2b7e78d
VP		 6145 if (f->valid)
6146 clear_filter(adapter, f);
6147 }
6148
aaefae9b
DM		 6149 if (adapter->flags & FULL_INIT_DONE)
6150 cxgb_down(adapter);
b8ff05a9 6151
06546391 6152 free_some_resources(adapter);
b8ff05a9 6153 iounmap(adapter->regs);
d14807dd 6154 if (!is_t4(adapter->params.chip))
22adfe0a 6155 iounmap(adapter->bar2);
b8ff05a9
DM		 6156 kfree(adapter);
6157 pci_disable_pcie_error_reporting(pdev);
144be3d9
GS		 6158 if ((adapter->flags & DEV_ENABLED)) {
6159 pci_disable_device(pdev);
6160 adapter->flags &= ~DEV_ENABLED;
6161 }
b8ff05a9 6162 pci_release_regions(pdev);
a069ec91 6163 } else
b8ff05a9
DM		 6164 pci_release_regions(pdev);
6165}
6166
6167static struct pci_driver cxgb4_driver = {
6168 .name = KBUILD_MODNAME,
6169 .id_table = cxgb4_pci_tbl,
6170 .probe = init_one,
91744948 6171 .remove = remove_one,
204dc3c0 6172 .err_handler = &cxgb4_eeh,
b8ff05a9
DM		 6173};
6174
6175static int __init cxgb4_init_module(void)
6176{
6177 int ret;
6178
3069ee9b
VP		 6179 workq = create_singlethread_workqueue("cxgb4");
6180 if (!workq)
6181 return -ENOMEM;
6182
b8ff05a9
DM		 6183 /* Debugfs support is optional, just warn if this fails */
6184 cxgb4_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
6185 if (!cxgb4_debugfs_root)
428ac43f 6186 pr_warn("could not create debugfs entry, continuing\n");
b8ff05a9
DM		 6187
6188 ret = pci_register_driver(&cxgb4_driver);
73a695f8 6189 if (ret < 0) {
b8ff05a9 6190 debugfs_remove(cxgb4_debugfs_root);
73a695f8
WY		 6191 destroy_workqueue(workq);
6192 }
01bcca68
VP		 6193
6194 register_inet6addr_notifier(&cxgb4_inet6addr_notifier);
6195
b8ff05a9
DM		 6196 return ret;
6197}
6198
6199static void __exit cxgb4_cleanup_module(void)
6200{
01bcca68 6201 unregister_inet6addr_notifier(&cxgb4_inet6addr_notifier);
b8ff05a9
DM		 6202 pci_unregister_driver(&cxgb4_driver);
6203 debugfs_remove(cxgb4_debugfs_root); /* NULL ok */
3069ee9b
VP		 6204 flush_workqueue(workq);
6205 destroy_workqueue(workq);
b8ff05a9
DM		 6206}
6207
6208module_init(cxgb4_init_module);
6209module_exit(cxgb4_cleanup_module);
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